CN112563828A - Shielding structure of circular connector - Google Patents
Shielding structure of circular connector Download PDFInfo
- Publication number
- CN112563828A CN112563828A CN202011411312.3A CN202011411312A CN112563828A CN 112563828 A CN112563828 A CN 112563828A CN 202011411312 A CN202011411312 A CN 202011411312A CN 112563828 A CN112563828 A CN 112563828A
- Authority
- CN
- China
- Prior art keywords
- metal
- plastic body
- outer side
- shielding
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- 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]
- H01R13/6581—Shield structure
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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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/623—Casing or ring with helicoidal groove
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
Abstract
The invention discloses a shielding structure of a circular connector, which comprises a plastic body, a metal nut, a metal terminal and a metal shell, wherein the metal terminal which can be electrically connected with a lead in a shielding cable is fixedly inserted into the inner side of the plastic body, the metal nut is axially stopped and can be rotatably sleeved on the outer side of one end of the plastic body in the circumferential direction, the metal shell is fixedly sleeved on the outer side of the other end of the plastic body, a wiring structure which can be electrically connected with a shielding braid of the shielding cable is formed on the inner side of one end of the metal shell, a metal elastic part which can elastically deform along the radial direction is arranged on the outer side wall of the other end of the metal shell, one end of the metal nut is sleeved on the outer side of the other end of the metal shell, the metal elastic part is tightly clamped between the outer side wall of the metal shell and the inner side wall of the, and the convenience of assembly is improved.
Description
Technical Field
The present invention relates to connectors, and more particularly, to a shielding structure of a circular connector.
Background
When the shielding cable carries out plug-in connection, all adopt the circular connector to realize high-speed joint and disconnection at present, the circular connector need set up the metallic shield layer with the shielding weaving layer butt joint in the shielding cable outside on it for the shielding performance who keeps shielding cable joint position, the shielding structure of current circular connector is through a wave form bullet mesoaxial contact between metal casing and the metal nut, metal casing tail end and shielding cable weaving layer conducting connection, wave form bullet medium 15 can give metal nut a great positive pressure, make metal nut front end to glue the core and produce an extrusion force, so when the product is used to the lock, the required torsion of metal nut is great, when carrying out connector plug-in connection, the operation is difficult.
Disclosure of Invention
In order to make up for the defects, the invention provides the shielding structure of the circular connector, the shielding structure of the circular connector can realize 360-degree shielding of external interference signals in the signal transmission process of the male end plug and the female end plug of the circular connector, the requirement on locking torsion in the locking process of the male end plug and the female end plug is low, and the installation is convenient.
The technical scheme adopted by the invention for solving the technical problem is as follows: the utility model provides a shielding structure of circular connector, including the plastic body, the metal nut, metal terminal and metal casing, can fix with shield cable inner conductor electric connection's metal terminal and insert and locate the plastic body inboard, plastic body one end outside can be located to metal nut axial locking and circumferencial direction cover, the plastic body other end outside is located to the fixed cover of metal casing, metal casing one end inboard is formed with can with shield braid electric connection's of shield cable wiring structure, be equipped with on the metal casing other end lateral wall can be along the metal elastic component of radial elastic deformation, the metal casing other end outside is located to metal nut pot head, and the metal elastic component closely presss from both sides and locates between metal casing lateral wall and the metal nut inside wall, the metal nut other end is formed with threaded connection structure.
As a further improvement of the invention, an inner concave ring structure is formed on the outer side wall of the other end of the metal shell or on the outer side wall of the metal shell and the plastic body together, the metal elastic part is any one or a combination of a planar opening clamp spring with two open ends on the same plane, an axial spiral opening clamp spring with two open end side walls staggered along the axial direction, a radial spiral opening clamp spring with two open end side walls staggered along the radial direction, a flower type closed clamp spring with a circumferential outer side surface fluctuating along the radial direction, a flower type opening clamp spring with a circumferential outer side surface fluctuating along the radial direction and a conical spring, the metal clamp spring is sleeved in the inner concave ring structure, and the circumferential outer side of the metal clamp spring can elastically extend out of the opening outer.
As a further improvement of the invention, the cable shield is further provided with an insulating shell, the insulating shell is fixedly coated on the outer side of the metal shell, one end face of the insulating shell is butted with one end face of the metal nut, and the other end of the insulating shell can be sleeved on the outer side of the shielded cable.
As a further improvement of the invention, the outer side wall of the metal shell is connected with the inner side wall of the insulating shell in an embedded mode through a concave-convex structure.
As a further improvement of the present invention, the structure that the metal nut is axially stopped and can be rotatably sleeved on the outer side of one end of the plastic body in the circumferential direction is: the outer side of one end of the plastic body is provided with a ring of radial outward convex ring, the end face of one axial end of the metal nut is stopped on the step face of the radial outward convex ring, the inner side of the other end of the metal nut forms a step structure with an outward expanded inner diameter, and the step structure is stopped on the end face of one end of the insulating shell.
As a further improvement of the invention, a plurality of slot structures extending along the axial direction are arranged at intervals on the inner side of the plastic body, and the metal terminals are fixedly accommodated in the slot structures.
As a further improvement of the invention, the outer side of the metal nut is provided with a circle of flanges, and the surface of the outer side of the circumference of each flange is provided with concave-convex patterns.
As a further improvement of the present invention, the structure that the metal housing is fixedly sleeved outside the other end of the plastic body is: the outer side wall of the other end of the plastic body is provided with at least one convex point, and the convex point is in close contact interference fit with the inner side wall of the metal shell (the convex points are preferably more than two and are uniformly distributed along the circumferential direction, so that stable connection is realized).
As a further improvement of the invention, the convex point on the outer side wall of the other end of the plastic body is in a triangular inverted buckle structure with the thickness of one end in the axial direction of the plastic body larger than that of the other end.
As a further improvement of the invention, the end part of the metal terminal facing to one end of the shielding cable is formed with a slot for plugging the conducting wire in the shielding cable, and the end part of the metal terminal far away from one end of the shielding cable is formed with a convex column or a slot which can be plugged together.
The beneficial technical effects of the invention are as follows: the invention realizes the stable electric connection between the metal nut and the metal shell by arranging the metal elastic part capable of radial elastic deformation outside the metal shell, and forming a layer of metal shielding structure outside the shielded cable, wherein the metal nut presses the metal elastic part to generate radial deformation after the metal nut is sleeved with the metal shell, the metal shielding structure is formed into a whole by the electric connection between the metal shell and the shielding braid of the shielded cable, and finally forms 360-degree shielding against external interference signals at the joint of the shielded cable, the structure avoids the axial pressure of the metal nut, when the male end plug and the female end plug of the connector are locked, the front end of the metal nut can not generate extrusion force on the rubber core, the requirement on the torsion of the metal nut when the male end plug and the female end plug are locked is small, the installation is convenient, and the metal elastic part is arranged into the metal snap spring with staggered opening side walls by arranging the inner concave ring structure outside the metal shell, the assembly convenience is improved.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a perspective view of a prior art wave form bullet;
FIG. 3 is a perspective view of a male plug of the present invention;
FIG. 4 is a perspective view of the female end plug of the present invention;
FIG. 5 is a cross-sectional view of the male plug of the present invention;
FIG. 6 is a cross-sectional view of the female end plug of the present invention;
FIG. 7 is a cross-sectional view of the male plug and the female plug of the present invention in a locked state;
FIG. 8 is a perspective view of the plastic body of the present invention;
FIG. 9 is a perspective view of a metal shell of the present invention;
FIG. 10 is a perspective view of a first metal clip of the present invention;
FIG. 11 is a perspective view of a second metal clip of the present invention;
FIG. 12 is a perspective view of a third metal clip of the present invention;
FIG. 13 is a perspective view of a fourth metal clip of the present invention;
FIG. 14 is a perspective view of a fifth metal clip of the present invention;
FIG. 15 is a perspective view of a sixth metal clip of the present invention;
FIG. 16 is a perspective view of a seventh metal clip of the present invention;
FIG. 17 is a perspective view of a metal nut of the present invention;
fig. 18 is a perspective view of a shielded cable.
Detailed Description
Example (b): a shielding structure of a circular connector comprises a plastic body 1, a metal nut 2, a metal terminal 3 and a metal shell 4, wherein the metal terminal 3 which can be electrically connected with a conducting wire 6 in a shielding cable 5 is fixedly inserted into the inner side of the plastic body 1, the metal nut 2 is axially stopped and can be sleeved outside one end of the plastic body 1 in a rotating way in the circumferential direction, the metal shell 4 is fixedly sleeved outside the other end of the plastic body 1, a wiring structure which can be electrically connected with a shielding braid 7 of the shielding cable 5 is formed inside one end of the metal shell 4, a metal elastic part 16 which can elastically deform along the radial direction is arranged on the outer side wall of the other end of the metal shell 4, one end of the metal nut 2 is sleeved outside the other end of, and metal elastic component 16 closely presss from both sides and locates between metal casing 4 lateral wall and the metal nut 2 inside wall, and metal nut 2 other end is formed with threaded connection structure. The circular connector comprises a male end plug 10 and a female end plug 20, the difference between the two is that the metal nut 2 is an external thread and an internal thread, when in use, the other end of the metal nut 2 of the male end plug is inserted into the female end plug, the metal nut 2 of the male end plug and the metal nut 2 of the female end plug are fixedly connected together through a thread, the metal terminal 3 in the male end plug and the metal terminal 3 in the female end plug are closely contacted and electrically connected together to realize conduction, and then two shielding cables 5 are connected, after connection, because the metal shell 4 of the circular connector is electrically connected with the shielding braid 7 of the shielding cables 5, the metal shell 4 is electrically connected with the metal nut 2 through a metal elastic piece 16, the metal nut 2 of the male end plug and the metal nut 2 of the female end plug are electrically connected together, therefore, a joint part shielding layer electrically connected with the shielding braid 7 on the two shielding cables 5 is formed outside the joints of, the perfect shielding of the connector part of the shielding cable 5 connected through the circular connector is realized, the shielding structure is simple, the connection is convenient, and when the male end plug and the female end plug are locked, the metal nut 2 is easy to rotate.
An inner concave ring structure 8 is formed on the outer side wall of the other end of the metal shell 4 or on the outer side wall of the metal shell 4 and the plastic body 1 together, the metal elastic part 16 is any one or combination of a plane opening clamp spring with two open ends on the same plane, an axial spiral opening clamp spring with two open end side walls 161 axially staggered, a radial spiral opening clamp spring with two open end side walls 161 radially staggered, a flower type closed clamp spring with a circumferential outer side surface radially fluctuating in a concave-convex mode, a flower type opening clamp spring with a circumferential outer side surface radially fluctuating in a concave-convex mode and a conical spring, the metal clamp spring is sleeved in the inner concave ring structure 8, and the outer side of the circumference of the metal clamp spring can elastically stretch out of the outer side of the.
Through the metal snap spring is clamped on the inner concave ring structure 8 formed on the metal shell 4 or the inner concave ring structure 8 formed by the metal shell 4 and the plastic body 1 together is fixedly connected with the metal snap spring and the metal shell 4, when the metal nut 2 is sleeved with the metal shell 4, the inner side wall of the metal nut 2 is pressed against the outer side surface of the circumference of the metal snap spring, the metal snap spring radially contracts to realize the close contact and conduction of the metal shell 4 and the metal nut 2, the metal snap spring can be in various forms, for a plane opening snap spring, the opening is reduced when the snap spring radially contracts, a cantilever elastic structure obliquely extending along the axial direction can be further arranged on the side wall of the snap spring to improve the self strength, meanwhile, the contact of the axial direction and the inner concave ring structure 8 can be realized, for an axial spiral snap spring and a radial bolt snap spring, when the snap spring contracts, the side, realize elastic deformation, avoid, and axial deformation packs in the inner concave ring structure 8 of metal casing 4, above-mentioned metal jump ring can form for the preparation of elastic wire rod, or elastic sheet preparation forms, to the jump ring that the circumference outside surface area is big, can also set up convex closure structure on its circumference lateral wall and metal nut 2 contact site and improve its self intensity, reduce with metal nut 2 contact area, this kind of metal jump ring elasticity is good, it is stable with metal casing 4 and metal nut 2 contact, metal nut 2 can not receive the packing force influence when rotating, can easily rotate and realize being connected of public end and female end, except adopting metal jump ring and inner concave ring structure 8 cooperation structure, also can install the ball that has radial elastic motion on metal casing 4 and metal nut 2 inside wall elastic contact and switch on, or set up elastic ball and the inner concave ring structure 8 elastic tightening of metal casing 4 outside in metal nut 2 inboard The close insertion realizes close contact and conduction, and the like are equivalent alternative structures which can be easily thought by those skilled in the art according to the technical scheme of the patent, and belong to the protection scope of the patent.
Still be equipped with insulating casing 9, insulating casing 9 is fixed cladding in the metal casing 4 outside, and 9 one end terminal surfaces of insulating casing and 2 one end terminal surface butt joints of metal nut, and the shielding cable 5 outside can be located to the cover of 9 other ends of insulating casing. Insulating casing 9 can protect metal casing 4 in, seals metal casing 4 and 5 piecings of shielded cable, and insulating casing 9 best has certain elasticity, and inseparable cladding plays certain connection characteristic in the metal casing 4 and the 5 outsides of shielded cable, and the best cladding one deck copper foil 11 in the 7 outsides of shielded cable 5's shielding braid avoids this shielding braid 7 to scatter.
The outer side wall of the metal shell 4 is connected with the inner side wall of the insulating shell 9 in an embedded mode through a concave-convex structure 17. Or can be integrally formed or connected through a connecting piece.
The structure that 1 one end outside of plastic body is located to 2 axial locking of metal nut and circumferencial direction can the pivoted cover is: a ring of radial outward convex ring 18 is arranged on the outer side of one end of the plastic body 1, the end face of one axial end of the metal nut 2 is stopped on the step face of the radial outward convex ring 18, a step structure 19 with an outward expanded inner diameter is formed on the inner side of the other end of the metal nut 2, and the step structure 19 is stopped on the end face of one end of the insulating shell 9.
The inner side of the plastic body 1 is provided with a plurality of slot structures 12 which extend along the axial direction of the plastic body at intervals, and the metal terminals 3 are fixedly accommodated in the slot structures 12. Each slot structure 12 is used for accommodating and fixing the metal terminals 3, and realizes the separated positioning of each metal terminal 3, thereby avoiding the occurrence of winding and deformation.
The outer side of the metal nut 2 is provided with a circle of flange 13, and the surface of the outer side of the circumference of the flange 13 is provided with concave-convex patterns. This structure is convenient for rotate metal nut 2 and is realized the connection of public end plug and female end plug.
The structure that 1 other end outside of plastic body is located to metal casing 4 fixed cover is: at least one convex bump 14 is arranged on the outer side wall of the other end of the plastic body 1, and the convex bump 14 is in close contact interference fit with the inner side wall of the metal shell 4 (the number of the convex bumps 14 is preferably more than two, and the convex bumps are uniformly distributed along the circumferential direction to realize stable connection).
Convex salient points 14 on the outer side wall of the other end of the plastic body 1 are triangular inverted buckle structures with one end thickness being larger than the other end thickness along the axial direction of the plastic body 1. The structure is convenient to assemble, is stable in connection after assembly, and cannot be pulled apart in the plugging process of the male end plug and the female end plug.
The end part of the metal terminal 3 facing one end of the shielding cable 5 is provided with a slot for inserting the conducting wire 6 in the shielding cable 5, and the end part of the metal terminal 3 far away from one end of the shielding cable 5 is provided with a convex column or a slot which can be inserted together. The metal terminal 3 in the circular connector and the wire 6 in the shielding cable 5 are spliced through the convex column and the slot to form communication, and in addition, the connection can be realized through welding or riveting, and the metal terminal 3 in the same male end plug and the metal terminal 3 in the female end plug are spliced.
Claims (10)
1. A shielding structure of a circular connector is characterized in that: including plastic body (1), metal nut (2), metal terminal (3) and metal casing (4), can fix with shielding cable (5) inner conductor (6) electric connection's metal terminal and insert and locate the plastic body inboard, the plastic body one end outside can be located to metal nut axial locking and circumferencial direction pivoted cover, the plastic body other end outside is located to the metal casing fixed cover, metal casing one end inboard is formed with can with shielding cable's shielding weaving layer (7) electric connection's wiring structure, be equipped with on the metal casing other end lateral wall and can follow radial elastic deformation's metal elastic component (16), the metal casing other end outside is located to metal nut pot head, and metal elastic component closely presss from both sides and locates between metal casing lateral wall and the metal nut inside wall, the metal nut other end is formed with threaded connection structure.
2. The shielding structure of a circular connector as set forth in claim 1, wherein: an inner concave ring structure (8) is formed on the outer side wall of the other end of the metal shell or on the outer side wall of the metal shell and the plastic body together, the metal elastic piece is a planar opening clamp spring with two open ends on the same plane, an axial spiral opening clamp spring with two open end side walls (161) staggered axially, a radial spiral opening clamp spring with two open end side walls staggered radially, a flower type closed clamp spring with a circumferential outer side surface fluctuating radially and convexly, a flower type opening clamp spring with a circumferential outer side surface fluctuating radially and convexly, and a conical spring, the metal clamp spring is sleeved in the inner concave ring structure, and the outer side of the circumference of the metal clamp spring can elastically stretch out of the outer side of the inner concave ring structure and is in close.
3. The shielding structure of a circular connector as set forth in claim 1, wherein: still be equipped with insulating casing (9), insulating casing fixed cladding is in the metal casing outside, and insulating casing one end terminal surface and metal nut one end terminal surface butt joint, the shielding cable outside can be located to the insulating casing other end cover.
4. The shielding structure of a circular connector as set forth in claim 3, wherein: the outer side wall of the metal shell is connected with the inner side wall of the insulating shell in an embedded mode through a concave-convex structure (17).
5. The shielding structure of a circular connector as set forth in claim 3, wherein: the structure that plastic body one end outside is located to metal nut axial locking and circumferencial direction can pivoted cover is: a ring of radial outward convex ring (18) is arranged on the outer side of one end of the plastic body, the end face of one axial end of the metal nut is stopped on the step face of the radial outward convex ring, a step structure (19) with an outward expanded inner diameter is formed on the inner side of the other end of the metal nut, and the step structure is stopped on the end face of one end of the insulating shell.
6. The shielding structure of a circular connector as set forth in claim 1, wherein: the plastic body is internally provided with a plurality of slot structures (12) which extend along the axial direction of the plastic body at intervals, and the metal terminals are fixedly accommodated in the slot structures.
7. The shielding structure of a circular connector as set forth in claim 1, wherein: the outer side of the metal nut is provided with a circle of flange (13), and the surface of the outer side of the circumference of the flange is provided with concave-convex patterns.
8. The shielding structure of a circular connector as set forth in claim 1, wherein: the fixed structure of locating the plastic body other end outside of metal casing does: the outer side wall of the other end of the plastic body is provided with at least one convex bump (14), and the convex bump is in close contact interference fit with the inner side wall of the metal shell (the number of the convex bumps is preferably more than two, and the convex bumps are uniformly distributed along the circumferential direction to realize stable connection).
9. The shielding structure for circular connectors as claimed in claim 8, wherein: the convex point of evagination is the triangle-shaped back-off structure that is greater than other end thickness along plastic body axial one end thickness on the plastic body other end lateral wall.
10. The shielding structure of a circular connector as set forth in claim 1, wherein: the end part of the metal terminal facing one end of the shielding cable is provided with a slot for inserting the conducting wire in the shielding cable, and the end part of the metal terminal far away from one end of the shielding cable is provided with a convex column or a slot which can be inserted together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411312.3A CN112563828A (en) | 2020-12-04 | 2020-12-04 | Shielding structure of circular connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011411312.3A CN112563828A (en) | 2020-12-04 | 2020-12-04 | Shielding structure of circular connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112563828A true CN112563828A (en) | 2021-03-26 |
Family
ID=75048810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011411312.3A Pending CN112563828A (en) | 2020-12-04 | 2020-12-04 | Shielding structure of circular connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112563828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115642433A (en) * | 2021-07-20 | 2023-01-24 | 科瑞工业自动化系统（苏州）有限公司 | Shielded cable with plug |
-
2020
- 2020-12-04 CN CN202011411312.3A patent/CN112563828A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115642433A (en) * | 2021-07-20 | 2023-01-24 | 科瑞工业自动化系统（苏州）有限公司 | Shielded cable with plug |
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