CN101771202A - Ground structure and electrical connector using the same - Google Patents
Ground structure and electrical connector using the same Download PDFInfo
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- CN101771202A CN101771202A CN200910260864A CN200910260864A CN101771202A CN 101771202 A CN101771202 A CN 101771202A CN 200910260864 A CN200910260864 A CN 200910260864A CN 200910260864 A CN200910260864 A CN 200910260864A CN 101771202 A CN101771202 A CN 101771202A
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- China
- Prior art keywords
- cable
- shell
- back side
- insert
- outside braid
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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
- H01R13/622—Screw-ring or screw-casing
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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
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
- H01R13/59—Threaded ferrule or bolt operating in a direction parallel to the cable or wire
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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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/65912—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable
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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
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
- H01R9/0521—Connection to outer conductor by action of a nut
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Multi-Conductor Connections (AREA)
Abstract
A ground structure is to be connected to a cable having a plurality of cable conductors, an outer braid for covering the cable conductors, and an outer covering for covering the outer braid. The ground structure includes a folded part of the outer braid which is folded back on the outer covering, an elastic member arranged between the folded outer braid and the outer covering and having an elasticity to push the folded outer braid outwardly, and a ground member positioned on and contacting the folded outer braid and having at least one scraping and contacting protrusion for scraping away a surface treatment layer of a shell, thereby achieving the grounding between the cable and the shell in a simple manner without requiring troublesome operations, and providing an electrical connector using such a ground structure.
Description
Technical field
The present invention relates to the electric connector that uses in such as servo motor, Communication Equipment etc. at Electrical and Electronic equipment, and relate more specifically to have and be used for the electric connector of cable grounding to the ground structure of the simple structure of shell.
Background technology
Usually, for the ground structure that obtains electric connector that conducts by cable and shell, grounding contact such as following prior art be described to be brought into conducting with shell, and the cable braid is connected to grounding contact, thereby obtains conducting of cable and shell.
Example as the electric connector that comprises ground structure with grounding contact and shell, the open No.H4-23 of Japanese utility model application, 083 (1992) (patent documentation 1), Japanese Patent Application Publication No.H9-115,617 (1997) (patent documentation 2) and Japanese Patent Application Publication No.2002-164,127 (patent documentations 3) are incorporated into this.
Patent documentation 1
The open No.H4-23 of Japanese utility model application, disclosed connector comprises barrel shrond 12, is arranged in insulator 13 in the barrel shrond 12, remains in contact 11 and ground strip 30 in the insulator 13 in 083.Ground strip 30 have with shell 12 contacted to outer process spring leaf 36 and will with the contacted inside projection tab 35 of one of contact 11 so that this contact 11 is electrically connected to shell 12.
Patent documentation 1 not open how with cable grounding to shell.And ground strip 30 complex structures and assembling connector need pretty troublesome operation, therefore can increase the manufacturing cost of connector.
Patent documentation 2
Japanese Patent Application Publication No.H9-115,617 disclose a kind of socket connector, it comprises external conductive casing 1, all is enclosed in front insulator 2 and backside insulator 3, grounding contact 4, a plurality of contact 5 and hook pin 10 in the shell 1, the head 16 that hook pin 10 has two shanks 15 and be formed with breach 19 on its excircle.When hook pin 10 inserted the hole 11 of shells 1, head 16 pressed fit in the hole 11 so that breach 19 is bitten the inner surface in hole 11, thereby firmly keeps hook pin 10.On the other hand, the shank 15 of hook pin 10 enters the hole 13 of grounding contact 4 and pushes the inner surface in hole 13 by the elastic restoring force of shank 15, thereby prevents grounding contact 4 displacements.Grounding contact 4 is electrically connected to shell 1 by hook pin 10.
Patent documentation 2 discloses conducting of grounding contact and shell, but does not disclose conducting of cable braid and shell.
Patent documentation 3
Japanese Patent Application Publication No.2002-164, disclosed electric connector comprises insulator 22, remains in contact 24 in the insulator 22, covers the shell 26 and the ground strip 10 of insulator 22 in 127, and ground strip 10 has at least one contacted flexure strip 14 of inner surface that curves inwardly the contact chip 12 that is used for stably contacting one of contact 24 and be used to cause flexure strip 14 and shell 26 towards shell 26 bendings.Like this, a contact 24 is electrically connected to shell 26 by ground strip 10.
Equally, patent documentation 3 not open how with cable grounding to shell 28.Ground strip 10 also is a complex structure, so it will have the shortcoming identical with disclosed ground strip 30 in the patent documentation 1.
Cable and shell have the ground structure that conducts to have had the client to need wherein.In addition, there has been situation with grounding contact.Therefore, disclosed structure can not meet this needs in the patent documentation 1 to 3.
Can imagine that the braid of cable is connected directly to shell by welding.Yet usually, because shell is coated with surface-treated layer such as handling by chromate, it has hindered direct welding, therefore need remove surface-treated layer, and this is irksome operation.
Summary of the invention
The present invention finishes seeing under the problems referred to above of prior art, and target of the present invention provides and a kind ofly provides the ground structure of cable grounding to shell in simple mode under the operation that need not trouble, and a kind of electric connector that uses this ground structure is provided.
Target of the present invention can will be connected to the ground structure of cable that has a plurality of cable conductors, is used to cover the outside braid of described cable conductor and is used to cover the outer cover of described outside braid by the present invention according to claim 1 and finish, and described ground structure comprises: described outside braid be folded back folded part on described outer cover; Flexible member, it is arranged between described folding outside braid and the described outer cover and has elasticity with the described folding outside braid of outside pushing; And earth element, it is positioned on the described folding outside braid and contact with it, and has the surface-treated layer that at least one scraping and contact device are used to scrape decapsidate.
Ground structure as claimed in claim 2 is constructed so that in the described ground structure of claim 1, described flexible member is provided with slit, and a plurality of described scraping of described earth element and contact device are arranged symmetrically with respect to the center of described cable.
In the described ground structure of claim 3, described scraping and contact device are the general triangular cones.
And, the electric connector of cable that target of the present invention can also the present invention according to claim 4 has a plurality of cable conductors by being connected to, be used to cover the outside braid of described cable conductor and be used to cover the outer cover of described outside braid is finished, described electric connector comprises: the contact of requirement, each contact have suitable contact site, standing part that will be fixed at least one insulator that contacts with linking objective and the coupling part that will be connected to cable or substrate; Be used to arrange and fix described at least one insulator of described contact; And layout covers the shell of described at least one insulator; Electric connector is constructed so that flexible member is arranged between described outside braid and the described outer cover, and earth element is arranged on the described outside braid and contacts so that described outside braid is brought into described earth element so that described outside braid is outwards pushed by described flexible member, and make that the surface-treated layer that the contact of described earth element and device for scraping scrape off described shell conducts so that described cable is brought into described shell when inserting described shell with the contacted described earth element of described outside braid.
Electric connector as claimed in claim 5 is constructed so that described insulator is made of front insert and back side insert, and these front and back inserts keep described contact, described shell is made of front shell and back side shell, and described front shell keeps described front insert and described back side insert and is provided with to be mounted thereon being used for the adapting device that matches with matching connector, and an end of described back side shell is fixed to described front shell, and the other end of described back side shell is provided with the holding device that is used for described cable.
In the described electric connector of claim 6, described back side shell is L shaped.
Electric connector as claimed in claim 7 also comprises: as the coupling collar of described adapting device, have the BS coupling of the adapting device that is used for fixing described back side shell and described front shell, as the cable clip and the binding nut of the described holding device that is used to keep described cable, it has and is used for the adapting device that cooperates with described back side shell, and when described binding nut matched with described back side shell, described binding nut matched to keep described cable with described cable clip.
From foregoing description, can see ground structure and use the electric connector of this ground structure can bring following significant effect and effect.
(1) according to claim 1, will be connected to the ground structure of cable that has a plurality of cable conductors, is used to cover the outside braid of described cable conductor and is used to cover the outer cover of described outside braid comprises: described outside braid be folded back folded part on described outer cover; Flexible member, it is arranged between described folding outside braid and the described outer cover and has elasticity with the described folding outside braid of outside pushing; And earth element, it is positioned on the described folding outside braid and contact with it, and has the surface-treated layer that at least one scraping and contact device are used to scrape decapsidate.Therefore, cable can be grounded to shell in simple mode under the operation that need not trouble.
(2) according to ground structure as claimed in claim 2, described flexible member is provided with slit, and a plurality of described scraping of described earth element and contact device are arranged symmetrically with respect to the center of described cable.Thereby cable can be grounded to shell in simple mode under the operation that need not trouble, and can make outside braid, flexible member and earth element contact each other with very big certainty.
(3) ground structure according to claim 3, described scraping and contact device are the general triangular cones.Thereby cable can be grounded to shell in simple mode under the operation that need not trouble, and can make outside braid, flexible member and earth element contact each other definitely.The surface-treated layer of shell can easily remove.
(4) electric connector as claimed in claim 4 is to be connected to the electric connector of cable that has a plurality of cable conductors, is used to cover the outside braid of described cable conductor and is used to cover the outer cover of described outside braid, described electric connector comprises: the contact of requirement, each contact have suitable contact, standing part that will be fixed at least one insulator that contacts with linking objective and the coupling part that will be connected to cable or substrate; Be used to arrange and fix described at least one insulator of described contact; And layout covers the shell of described at least one insulator; Wherein flexible member is arranged between described outside braid and the described outer cover, and earth element is arranged on the described outside braid and contacts so that described outside braid is brought into described earth element so that described outside braid is outwards pushed by described flexible member, and wherein when inserting described shell with the contacted described earth element of described outside braid, the surface-treated layer that the contact of described earth element and device for scraping scrape off described shell conducts so that described cable is brought into described shell.Thereby cable can be grounded to shell in simple mode under the operation that need not trouble, and can make outside braid, flexible member and earth element contact each other reliably.The surface-treated layer of shell can easily remove.Therefore, can provide electrical connection stable electric connector.
(5) electric connector as claimed in claim 5 is constructed so that described insulator is made of front insert and back side insert, and these front and back inserts keep described contact, described shell is made of front shell and back side shell, and described front shell keeps described front insert and described back side insert and is provided with to be mounted thereon being used for the adapting device that matches with matching connector, and an end of described back side shell is fixed to described front shell, and the other end of described back side shell is provided with the holding device that is used for described cable.Thereby cable can be grounded to shell in simple mode under the operation that need not trouble, and can make outside braid, flexible member and earth element contact each other with great certainty.The surface-treated layer of shell can easily remove, and therefore, can provide to be electrically connected stable electric connector.
(6) according to electric connector as claimed in claim 6, described back side shell is L shaped.Thereby cable can be grounded to shell in simple mode under the operation that need not trouble, and can make outside braid, flexible member and earth element contact each other reliably.The surface-treated layer of shell can easily remove, and therefore, can provide to be electrically connected stable electric connector.
(7) electric connector as claimed in claim 7 comprises: as the coupling collar of described adapting device, have the BS coupling of the adapting device that is used for fixing described back side shell and described front shell, as the cable clip and the binding nut of the described holding device that is used to keep described cable, it has and is used for the adapting device that cooperates with described back side shell, and when described binding nut matched with described back side shell, described binding nut matched to keep described cable with described cable clip.Thereby cable can be grounded to shell in simple mode under the operation that need not trouble, and can make outside braid, flexible member and earth element contact each other with great certainty.The surface-treated layer of shell can easily remove, and therefore, can provide to be electrically connected stable electric connector.
Importance of the present invention is to be connected to the ground structure of cable that has a plurality of cable conductors, is used for the outside braid of covering cable conductor and is used to cover the outer cover of outside braid, and this ground structure comprises: described outside braid be folded back folded part on the covering externally; Flexible member, it is arranged between folding outside braid and the outer cover and has the outside braid that elasticity folds with pushing radially outward; And earth element, on its outside braid that is positioned to fold and with it contact, and have the surface-treated layer that at least one scraping and contact device are used to scrape decapsidate.
In other words, under the operation that need not trouble in simple mode with cable grounding to shell, provide: outside braid be folded back folded part on the covering externally; Flexible member, it is arranged between folding outside braid and the outer cover and has the outside braid that elasticity folds with pushing radially outward; And earth element, contact on its outside braid that is positioned to fold and with it, and has the surface-treated layer that at least one scraping and contact device are used to scrape decapsidate, so that when inserting shell with the contacted earth element of outside braid, the surface-treated layer that the scraping of earth element and contact device are scraped decapsidate conducts so that cable is brought into shell.
With reference to following detailed and claim, the present invention will obtain understanding more completely in conjunction with the accompanying drawings.
Description of drawings
Figure 1A is the perspective view of electric connector according to the present invention from cooperating side to see;
Figure 1B is the sectional view of electric connector;
Fig. 2 is the decomposition diagram that the electric connector of its parts is shown;
Fig. 3 A is the perspective view of back side shell, earth element, flexible member and a part of cable;
Fig. 3 B is the plan view with the combined flexible member of cable and earth element;
Fig. 3 C is the sectional view of the combination of back side shell, earth element, flexible member and cable;
Fig. 4 is the perspective view of contact;
Fig. 5 A is the perspective view of front insert;
Fig. 5 B is the sectional view of front insert;
Fig. 6 A is the perspective view of back side insert;
Fig. 6 B is the sectional view of back side insert;
Fig. 7 A is the perspective view of plug body (front shell);
Fig. 7 B is the sectional view of plug body;
Fig. 8 A is the perspective view of back side shell;
Fig. 8 B is the sectional view of back side shell;
Fig. 9 A is the perspective view of coupling collar;
Fig. 9 B is the sectional view of coupling collar;
Figure 10 A is the perspective view of BS coupling;
Figure 10 B is the sectional view of BS coupling;
Figure 11 is the perspective view of cable clip;
Figure 12 A is the perspective view of binding nut;
Figure 12 B is the sectional view of binding nut; And
Figure 13 is the perspective view of retaining ring.
Embodiment
Explain a embodiment with reference to the accompanying drawings according to electric connector of the present invention.Figure 1A is the perspective view of electric connector from cooperating side to see, and Figure 1B is the sectional view of electric connector.Fig. 2 is the decomposition diagram of electric connector, according to the order of number of assembling steps its parts is shown.Fig. 3 A is the perspective view of back side shell, earth element, flexible member and a part of cable, and Fig. 3 B is the plan view with the combined flexible member of cable and earth element, and Fig. 3 C is the sectional view of the combination of back side shell, earth element, flexible member and cable.Fig. 4 is the perspective view of contact.Fig. 5 A is the perspective view of front insert, and Fig. 5 B is the sectional view of front insert.Fig. 6 A is the perspective view of back side insert, and Fig. 6 B is the sectional view of back side insert.Fig. 7 A is the perspective view of plug body (front shell), and Fig. 7 B is the sectional view of plug body.Fig. 8 A is the perspective view of back side shell, and Fig. 8 B is the sectional view of back side shell.Fig. 9 A is the perspective view of coupling collar, and Fig. 9 B is the sectional view of coupling collar.Figure 10 A is the perspective view of BS coupling, and Figure 10 B is the sectional view of BS coupling.Figure 11 is the perspective view of cable clip.Figure 12 A is the perspective view of binding nut, and Figure 12 B is the sectional view of binding nut.Figure 13 is the perspective view of retaining ring.
Before the parts of the electric connector of explaining present embodiment, will explain cable 40 earlier.Described cable 40 has the cable conductor 401 of the requirement that is covered by outside braid 402 (it is further covered by outer cover 403).
Explain the parts of the electric connector 10 of present embodiment with reference to Figure 1A to 13.At first, explanation is used for cable 40 is grounded to the ground structure of back side shell 20, this is a theme of the present invention.The step that is used to construct ground structure is as follows.At first, the part of the outside braid 402 of cable 40 is folded back externally on the covering 403.Secondly, rubber-like flexible member 28 is arranged between folding outside braid 402 and the outer cover 403 so that folding outside braid 402 is outwards pushed by the resilient radial ground of flexible member 28.The 3rd, the earth element 30 that will have at least one scraping and contact device 303 is arranged on the folding outside braid 402 so that earth element 30 contacts with outside braid 402.At last, insert the through hole 201 of back side shell 20 so that scraping and contact device 303 scrape off the surface-treated layer of back side shell 20 under the condition that earth element 30 obtains in third step.Like this, the described outside braid 402 of cable 40 is brought into earth element 30 and conducts, and earth element 30 becomes and back side shell 20 conducts, so cable 40 is brought into described back side shell 20 and conducts, thereby described cable 40 is grounded to described back side shell 20.
To explain flexible member 28.Flexible member 28 is made of metal and passes through the pressure processing formation of known technology.The preferable alloy that forms described flexible member 28 thus comprises and meets the brass that requires for elasticity, dimensional stability, conductivity etc., beryllium copper, phosphor bronze etc.Between outside braid 402 that described flexible member 28 is positioned to fold and the outer cover 403 with towards the earth element 30 outside outside braid 402 of pushing radially.Flexible member 28 be substantial cylindrical be used for receiving the receiver hole 282 of cable 40 with formation and have elasticity to flexible member is provided so that its can be radially the outside V-arrangement slit 281 of the outside braid 402 of (towards earth element 30) pushing.The shape and size of slit 281 can be arbitrarily, as long as obtain aforesaid effect and can consider suitably design under elasticity, availability, the intensity etc.Though slit roughly is V-arrangement in the embodiment shown, it can be I, S or M shape.
To explain earth element 30.Earth element 30 is made of metal and passes through the machining and the die casting formation of known technology.The preferable alloy that forms described earth element 30 thus generally includes and meets the kirsite that requires about dimensional stability, conductivity etc., aluminium alloy etc.Earth element 30 be substantial cylindrical be used for the receiver hole 301 of the outside braid 402 of receiving folding (with described cable 40) therein with formation.Earth element 30 at one end is provided with flange 302 and continuous with it projection 303, as described scraping and contact device.When described earth element 30 inserted the through hole 201 of described back side shell 20, projection 303 scraped off the chromate processing layer of back side shell 20 so that contact (conducting with it) with back side shell 20.The shape and size of described projection 303 can be arbitrarily, conduct obtaining above-mentioned effect as long as they bring earth element 30 with back side shell 20 into, and can consider to conduct, suitably design under the availability, machinability, intensity etc.Projection 303 is the general triangular cone in the embodiment shown, but they can be circular cone or cylindrical pillars.
To explain receptacle connector 12 then as contact.Receptacle connector 12 is made of metal and passes through the pressure processing formation of known technology.The preferable alloy that forms described receptacle connector 12 thus comprises and meets the brass that requires about dimensional stability, conductivity etc., beryllium copper, phosphor bronze etc.Described receptacle connector 12 mainly comprises and being fit to and the cooperating the contacted contact portion 121 of contact, treat by two inserts 14 and the standing parts 122 of 16 maintenances and the coupling part 123 that will be connected to cable of matching connector.Receptacle connector 12 be substantial cylindrical and its contact portion 121 also be columniform, be used for receiving the cooperation contact of matching connector.The size of contact portion 121 can suitably be designed to obtain be received in contact portion 121 in the stable of cooperation contact contact.Contact 12 firmly remains under the help of standing part 122 in the back side insert 16, and standing part 122 is bitten insert 16 as lance shape thing.The shape and size of standing part 122 can be in suitably design under the miniaturization of confining force, availability and the electric connector 10 of considering to be used for contact etc.Described coupling part 123 is suitable for being connected to cable.The shape of coupling part 123 can considered suitably design under requirement of client, the object that will connect, the method for attachment etc.The coupling part is connected to cable 40 by crimping in described embodiment.
To explain front insert 14 then.Front insert 14 is formed by the plastic-blasting of electric insulation plastics by known technology.The material that is used for front insert 14 can considered suitably selection under dimensional stability, availability, the manufacturing cost etc., and generally includes polyethylene terephthalate (PBT), polyamide (66PA or 46PA), liquid crystal polymer (LCP), Merlon (PC), polyphenylene sulfides (PPS) etc. and their combination.Described front insert 14 is formed with receptacle connector 12 and inserts wherein jack 142 respectively.Described jack 142 only needs to keep receptacle connector 12 respectively, and the size and dimension of jack 142 can suitably design under the size and dimension of considering receptacle connector 12.Described front insert 14 is shown in to cooperate on the side as Fig. 5 A and is formed with keyway 141, is used for respect to matching connector alignment connector 10.Described keyway 141 can be designed to suitably make that receptacle connector 12 can be connected to the cooperation contact of matching connector respectively.And, in each jack 142 on cooperating side, shown in Fig. 5 A, be provided with conical guide member 143 and be used for guiding the cooperation contact to enter jack 142.In addition, described front insert 14 is provided with engagement protrusion 144 on a side opposite with cooperating side, is used for respect to front, back side insert 16 location insert 14.The shape and size of described engagement protrusion 144 can considered suitably design under function (location), intensity, the engagement ability when insert meshes, the size of connector etc.
To explain back side insert 16 then.Back side insert 16 is formed by the plastic-blasting of electric insulation plastics by known technology.The material that is used for back side insert 16 can consider suitably to select and generally include polyethylene terephthalate (PBT), polyamide (66PA or 46PA), liquid crystal polymer (LCP), Merlon (PC), polyphenylene sulfides (PPS) etc. and their combination under dimensional stability, availability, the manufacturing cost etc.Described back side insert 16 is formed with described receptacle connector 12 and inserts wherein jack 162 respectively.Described jack 162 only needs to keep receptacle connector 12, and the size and dimension of jack 162 can suitably design under the size and dimension of considering described receptacle connector 12.Described back side insert 16 is provided with keyway 161 as shown in Figure 6A on cooperation side (described front insert 14 1 sides), be used for respect to matching connector alignment connector 10.Described keyway 161 can suitably design so that described receptacle connector 12 can be connected to the cooperation contact of matching connector.And described back side insert 16 is provided with cooperating recesses 164 on the cooperation side, is used for respect to the back side, front insert 14 location insert 16.The shape and size of described cooperating recesses 164 can considered suitably design under function (location), intensity, the engagement ability when insert meshes, the size of connector etc.In addition, described back side insert 16 is provided with key recess 163 on a side opposite with cooperating side, is used for respect to the back side, plug body 18 location insert 16.The shape and size of described key recess 163 can suitably design under considering function (location), intensity, the engagement ability when being meshed with plug body 18, the size of connector etc.
To explain plug body 18 then as the front shell.Plug body 18 is made of metal and forms by known technologies such as machining, die castings.The preferable alloy that forms plug body 18 thus generally includes kirsite, aluminium alloy etc., and the metal of plug body 18 can suitably be selected from these alloys under considering dimensional stability, availability, manufacturing cost etc.Described plug body 18 is substantial cylindrical mating holess 181 to be formed for described back side insert 16 is inserted wherein.Described mating holes 181 only needs to receive described back side insert 16, and can suitably design under the size of considering back side insert 16, availability, intensity etc.Described plug body 18 has holding device on its excircle, be used to keep coupling collar 22.The holding device that is used for keeping coupling collar 22 is the recess 182 of pre-position that is formed at the excircle of plug body 18.The projection 223 that is formed at coupling collar 22 inboards is inserted recess 182, and spring element 39 is inserted between the end face 183 of described coupling collar 22 and plug body 18.In addition, support pad 35 is assemblied on the spring element 39, be used to limit described spring element 39, and retaining ring 38 is assemblied in the inside groove of coupling collar 22.Like this, firmly keep coupling collar 22.In the case, retaining ring 38 keeps coupling collar 22 only to rotate in predetermined angle to allow it.And plug body 18 is provided with O shape ring 36 to improve the water proofing property between plug body 18 and the back side shell 20.And O shape ring 36 is arranged as abutting end near connector 10 to improve the water proofing property between connector 10 and the matching connector.In addition, described plug body 18 position corresponding to the key recess 163 of described back side insert 16 on inner periphery is provided with key projection 184, is used for respect to described back side insert 16 polarized plug shells 18.The shape and size of described key projection 184 can considered suitably design under function (location), intensity, the engagement ability when being meshed with back side insert, the size of connector etc.
To explain coupling collar 22 then.Coupling collar 22 is made of metal and forms by known technologies such as machining, die castings.The preferable alloy that forms coupling collar 22 thus generally includes kirsite, aluminium alloy etc., and the metal of coupling collar 22 can be selected from these alloys under considering dimensional stability, availability, manufacturing cost etc.
Described coupling collar 22 be substantial cylindrical to be formed for receiving the through hole 221 of described plug body 18.Coupling collar 22 remains on the described plug body 18 so that can rotate in predetermined angular according to said method.Coupling collar 22 portion within it is provided with a plurality of engagement projections 222.When connector 10 is meshed with matching connector, the roughly R shape recess that engagement projections 222 is inserted in the shell that is arranged at matching connector, and keep with the engagement of matching connector elasticity, therefore constitute so-called single locking device that activates by described spring element 39.And coupling collar 22 portion within it is provided with projection 223 corresponding to the position of the recess 182 of described plug body 18 so that projection 223 and recess 182 engagements are to keep described plug body 18.The shape and size of described projection 223 can suitably design under the function of considering just to have described, intensity, the engagement ability when plug body 18 meshes, the size of connector etc.
To explain BS coupling 24 then.BS coupling 24 is made of metal and forms by known technologies such as machining, die castings.The preferable alloy that forms BS coupling 24 thus comprises kirsite, aluminium alloy etc., and the metal of BS coupling 24 can suitably be selected from these alloys under considering dimensional stability, availability, manufacturing cost etc.Described BS coupling 24 be substantial cylindrical to be formed for receiving the through hole 241 of described plug body 18.The BS coupling is formed with negative thread 242 in the circumference within it, and it is meshed to be formed for cooperating the adapting device of described back side shell 20 spirally with described back side shell 20.In other words, described BS coupling 24 is meshed with back side shell 20 spirally so that described plug body 18 is surrounded by described BS coupling 24 and described back side shell 20, thereby described back side shell 20 and described plug body 18 is stably fixed to one another.
To explain back side shell 20 then.Back side shell 20 is made of metal and forms by known technologies such as machining, die castings.The preferable alloy that forms back side shell 20 thus generally includes kirsite, aluminium alloy etc., and the metal of back side shell 20 can suitably be selected from these alloys under considering dimensional stability, availability, manufacturing cost etc.Shell 20 usefulness chromate in the described back side are handled and are carried out surface treatment be used to prevent dust (weather resistance).But described back side shell 20 is columniformly to show L shaped bending greatly and insert wherein through hole 201 to form cable.Described back side shell 20 is in described through hole 201 in the end that is arranged in described plug body 18 1 sides and is formed with insertion portion 204, is used to receive described plug body 18.Described insertion portion 204 only needs to receive described plug body 18, and can suitably design under the size of considering described plug body, intensity, availability etc.The two ends place of described back side shell 20 in excircle is formed with pin thread 202 and 202, as the adapting device that is used for cooperating respectively described BS coupling 24 and described binding nut 32.And the two ends place of described back side shell 20 in inner periphery is formed with engagement recess 203 and 203, is used to prevent that described cable clip 26 and described plug body 18 are with respect to 20 rotations of back side shell.
To explain cable clip 26 then.Cable clip 26 is formed by the plastic-blasting of electric insulation plastics by known technology.The material that is used for cable clip 26 can considered suitably selection under dimensional stability, availability, the manufacturing cost etc., and generally includes polyethylene terephthalate (PBT), polyamide (66PA or 46PA), liquid crystal polymer (LCP), Merlon (PC), polyacetals (POM) etc. and their combination.Described cable clip 26 is used for keeping cable 40 when described binding nut 32 is meshed spirally with described back side shell 20.Described cable clip 26 be substantial cylindrical to form the holes that cable 40 inserts wherein.Described hole can suitably be designed so that described cable can be received in wherein under consideration intensity, availability etc.Described cable clip 26 is formed with recess 263 and is formed with each a plurality of broach 262 a position bending on a side of the described binding nut 32 of contact on a side of the described back side of contact shell 20.Described recess 263 be fit to engagement recess 203 engagements of described back side shell 20 preventing described cable clip 26 rotations, and the sweep of described broach 262 is urged to described cable 40 so that firmly keep described cable 40 by the pushing part 323 of described binding nut 32.For this reason, broach 262 is formed by therebetween slit or comb teeth shape becomes elongated independent sector and provides elasticity to give corresponding tooth, and broach 262 is provided with tip projection 264 to improve the cable confining force of cable clip 26 at their top end in addition.The shape and size of described broach 262 can considered suitably design under above-mentioned functions, elasticity, the confining force that is used for cable 40, the availability etc.
At last, will explain binding nut 32.Binding nut 32 is made and is formed by known technologies such as machining, die casting, injection mouldings by metal or plastics (being plastics in the illustrated embodiment).The preferred material that forms binding nut 32 thus generally includes kirsite, aluminium alloy or polyethylene terephthalate (PBT), polyamide (66PA or 46PA), liquid crystal polymer (LCP), Merlon (PC), polyphenylene sulfides (PPS) etc. and their combination, and the material of binding nut 32 can suitably be selected from these alloys or plastics under considering dimensional stability, availability, manufacturing cost etc.Described binding nut 32 be substantial cylindrical to form the through hole 321 that cable 40 inserts wherein.Binding nut 32 is formed with negative thread 322 in the circumference within it, it is suitable for being meshed spirally with described back side shell 20, as with the adapting device of described back side shell 20, and be formed with pushing part 323 in addition, its broach 262 that pushes described cable clip 26 is to keep described cable 40.Described pushing part 323 only needs to push the broach 262 of described cable clip 26 so that firmly keep described cable 40 and can suitably design under the confining force of considering to be used for cable 40, availability etc.
Except the parts of describing in detail above, the electric connector of described embodiment comprises lining 34, O shape ring 36, retaining ring 38 and spring element 39.Explain briefly in O shape ring 36, retaining ring 38 and the superincumbent description of spring element 39.Described lining 34 is arranged in the described cable clip 26 so that closely contact described cable 40 to improve water proofing property.
Though be used to have receptacle connector 12, describing in detail under the situation of the socket connector of plug body 18 etc. according to ground structure of the present invention, obviously, ground structure can be used for having header contact, in the pin connector of jack housing etc.Though described two inserts, also can use one or three inserts as insulator.And straight backboard face shell can be used to the L shaped back side shell described in the alternate embodiment.
Application example of the present invention is to be used for the electric or electronic equipment electric connector such as servo motor, Communication Equipment etc., and more specifically has the electric connector of the ground structure of the simple structure that uses cable and shell.
Only be in order to confirm that advantage of the present invention can be summarized as: the ground connection connection of guaranteeing electromagnetic protection can need not to carry out realization under alarm specific and the attention at the scene during the assembling connector.
Though the present invention illustrates particularly and describes with reference to its preferred embodiment, those skilled in the art will appreciate that aforementioned and other variation in form and the details can be made not breaking away under the spirit and scope of the present invention.
Claims (11)
1. ground structure, it will be connected to has a plurality of cable conductors, is used to the cable that covers the outside braid of described cable conductor and be used to cover the outer cover of described outside braid, and described ground structure comprises:
Described outside braid be folded back folded part on described outer cover,
Flexible member, it is arranged between the described folding outside braid and described outer cover, and has elasticity with the described folding outside braid of outside pushing, and
Earth element, it is positioned on the described folding outside braid and contact with it, and has at least one scraping and contact device, is used to scrape the surface-treated layer of decapsidate.
2. ground structure as claimed in claim 1, wherein said flexible member is provided with slit, and the described scraping of described earth element and contact device are arranged symmetrically with respect to the center of described cable.
3. ground structure as claimed in claim 1, wherein said scraping and contact device are the general triangular cones.
4. electric connector, it will be connected to has a plurality of cable conductors, is used to the cable that covers the outside braid of described cable conductor and be used to cover the outer cover of described outside braid,
Described electric connector comprises:
The contact of requirement, each contact have suitable contact portion, standing part that will be fixed at least one insulator that contacts with linking objective and the coupling part that will be connected to cable or substrate,
Be used to arrange and fix described at least one insulator of described contact; And
Arrange the shell that covers described at least one insulator,
Wherein flexible member is arranged between described outside braid and the described outer cover, and earth element is arranged on the described outside braid, so that outwards being pushed by described flexible member, described outside braid contacts so that described outside braid is brought into described earth element, and
Wherein when inserting described shell with the contacted described earth element of described outside braid, the surface-treated layer that the scraping of described earth element and contact device scrape off described shell conducts so that described cable is brought into described shell.
5. electric connector as claimed in claim 4, wherein said insulator is made of front insert and back side insert, and these front and back inserts keep described contact,
Wherein said shell is made of front shell and back side shell, and described front shell keeps described front insert and described back side insert and be provided with to be mounted thereon being used for the adapting device that matches with matching connector, and
One end of wherein said back side shell is fixed to described front shell, and the other end of described back side shell is provided with the holding device that is used for described cable.
6. electric connector as claimed in claim 5, wherein said back side shell is L shaped.
7. electric connector as claimed in claim 5, it comprises:
As the coupling collar of described adapting device,
BS coupling with the adapting device that is used for fixing described back side shell and described front shell,
As the cable clip of the described holding device that is used to keep described cable, and
Binding nut, it has and is used for the adapting device that cooperates with described back side shell, and in case described binding nut matches described binding nut and the described cable clip described cable of incompatible maintenance that matches with described back side shell.
8. one kind will be connected to cable and be used for the ground structure that uses with electric connector, described cable has a plurality of cable conductors, is used to cover the outside braid of described cable conductor and the outer cover that is used to cover described outside braid, and described electric connector comprises: the front insert that is formed by insulating material; The back side insert that is arranged as contiguous described front insert and forms by insulating material; The front shell that is made of metal, it has the mating holes that is used to insert described back side insert; The coupling collar that is made of metal, it has the through hole that is used to receive described front shell and is kept by the holding device that is arranged on the shell of described front; The BS coupling that is made of metal, it has the through hole that is used to receive described front shell; The back side shell that is made of metal, it has described cable and inserts through hole wherein and have the adapting device that cooperates with described BS coupling, is used for fixing when described BS coupling cooperates by described adapting device with described back side shell described front shell and described back side shell; And remain in described front insert and the described back side insert and be connected to the contact of the requirement of described cable,
Described ground structure comprises:
Described outside braid be folded back folded part on described outer cover,
Flexible member, it is arranged between the described folding outside braid and described outer cover, and has elasticity with the described folding outside braid of outside pushing, and
Earth element, it is positioned on the described folding outside braid and contacts with it, and have at least one scraping and contact device, be used to scrape the surface-treated layer of decapsidate, thus when described earth element inserts the described through hole of described back side shell with cable grounding to back side shell.
9. ground structure as claimed in claim 8 also comprises: the binding nut of substantial cylindrical, and it has described cable and inserts through hole wherein and have the adapting device that cooperates with described back side shell; The cable clip of the substantial cylindrical that forms by insulating material, it has described cable and inserts hole wherein and have the pushing that is suitable for by being arranged on the described binding nut and partly be urged to described cable so that firmly keep a plurality of broach of described cable; And insert lining between described binding nut and the described cable clip.
10. electric connector, it comprises: the front insert that is formed by insulating material; Back side insert, it is arranged as contiguous described front insert and is formed by insulating material; The front shell that is made of metal, it has the mating holes that is used to insert described back side insert; The coupling collar that is made of metal, it has the through hole that is used to receive described front shell and is kept by the holding device that is arranged on the shell of described front; The BS coupling that is made of metal, it has the through hole that is used to receive described front shell; The back side shell that is made of metal, it has cable and inserts through hole wherein and have adapting device, when described BS coupling matched with described back side shell by described adapting device, described adapting device matched with described BS coupling and is used for fixing described front shell and back side shell; The contact of requirement, they remain in described front insert and the described back side insert and are connected to the described cable with a plurality of cable conductors; Be used to cover the outside braid of described cable conductor; And the outer cover that is used to cover described outside braid; And be used for the ground structure of cable grounding to back side shell,
Wherein said ground structure comprises the folded part on described outer cover of being folded back of described outside braid,
Flexible member, it is arranged between described folding outside braid and the described outer cover and has elasticity with the described folding outside braid of outside pushing, and earth element, it is positioned on the described folding outside braid and contacts with it, and have at least one scraping and contact device, be used to scrape the surface-treated layer of decapsidate, thus when described earth element inserts the described through hole of described back side shell with cable grounding to back side shell.
11. electric connector as claimed in claim 10, wherein said ground structure also comprises: the binding nut of substantial cylindrical, and it has described cable and inserts through hole wherein and have the adapting device that cooperates with described back side shell; The cable clip of the substantial cylindrical that forms by insulating material, it has described cable and inserts through hole wherein and have and be suitable for partly being urged to described cable and making a plurality of broach that firmly keep described cable by being arranged at pushing on the described binding nut; And insert lining between described binding nut and the described cable clip.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008331679A JP2010153268A (en) | 2008-12-26 | 2008-12-26 | Ground structure and electrical connector using the ground structure |
| JP331679/2008 | 2008-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101771202A true CN101771202A (en) | 2010-07-07 |
Family
ID=42027697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910260864A Pending CN101771202A (en) | 2008-12-26 | 2009-12-21 | Ground structure and electrical connector using the same |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2202852A3 (en) |
| JP (1) | JP2010153268A (en) |
| CN (1) | CN101771202A (en) |
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| CN102881963A (en) * | 2012-09-25 | 2013-01-16 | 华为技术有限公司 | Phase shifter and antenna |
| CN103177832A (en) * | 2011-12-22 | 2013-06-26 | 泰科电子荷兰公司 | Resilient bushing and connector comprising same |
| CN103891060A (en) * | 2011-07-07 | 2014-06-25 | 伍德哈德工业有限公司 | Harsh duty receptacle connector |
| CN104464912A (en) * | 2013-09-17 | 2015-03-25 | 富士康(昆山)电脑接插件有限公司 | Cable assembly and assembling method thereof |
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| JP2012043763A (en) * | 2010-07-23 | 2012-03-01 | D D K Ltd | Contact and connector using contact |
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| US3435126A (en) * | 1967-01-04 | 1969-03-25 | Douglas L P Hamilton | Means securing a cable sheath to a grounding and supporting member |
| JPS6471084A (en) * | 1987-09-09 | 1989-03-16 | Yokokawa Koku Denki Kk | Connector back shell structure |
| US5083929A (en) * | 1990-04-17 | 1992-01-28 | Hewlett-Packard Company | Grounding bulkhead connector for a shielded cable |
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- 2009-12-21 CN CN200910260864A patent/CN101771202A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2202852A2 (en) | 2010-06-30 |
| EP2202852A3 (en) | 2010-09-15 |
| JP2010153268A (en) | 2010-07-08 |
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