CN110635257B - Electric connector and manufacturing method thereof - Google Patents
Electric connector and manufacturing method thereof Download PDFInfo
- Publication number
- CN110635257B CN110635257B CN201910262668.6A CN201910262668A CN110635257B CN 110635257 B CN110635257 B CN 110635257B CN 201910262668 A CN201910262668 A CN 201910262668A CN 110635257 B CN110635257 B CN 110635257B
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- electrical connector
- terminal
- housing
- outer peripheral
- peripheral surface
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
- H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
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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
- H01R13/5804—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 comprising a separate cable clamping part
- H01R13/5808—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 comprising a separate cable clamping part formed by a metallic element crimped around the 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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
- H01R13/6473—Impedance matching
- H01R13/6474—Impedance matching by variation of conductive properties, e.g. by dimension variations
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
- H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
- H01R24/44—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
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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
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/42—Securing in a demountable manner
- H01R13/428—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members
- H01R13/432—Securing in a demountable manner by resilient locking means on the contact members; by locking means on resilient contact members by stamped-out resilient tongue snapping behind shoulder in base or case
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
An electric connector and a method for manufacturing the same, which can obtain good electric characteristics and can eliminate the load which can adversely affect the connection part of a terminal member and a signal wire, so as to make the terminal member and the signal wire stably contact. An electrical connector (1) is provided with: an insulating outer insulating member (20); an internal insulating member (30) and a terminal guide member (40); a terminal member (50) which is accommodated in the external insulating member (20), the internal insulating member (30), and the terminal guide member (40), has conductivity, and is provided with: a front connection part (51) connected with a connection object, and a rear connection part (52) connected with a central conductor (102a) of the electric wire (100) and having a diameter smaller than that of the front connection part (51) in a state of being connected with the central conductor (102 a); and a clamping member (60) which has conductivity, is arranged around the outer peripheral surface (52a) of the rear connecting part (52), is clamped on the terminal guide member (40) through elastic force, and is in elastic contact with the rear connecting part (52).
Description
Technical Field
The present invention relates to an electrical connector connected to an electric wire and a method of manufacturing the electrical connector.
Background
Conventionally, there is known an electrical connector connected to a high-frequency-supporting wire for transmitting a high-frequency signal. In the case where the characteristic impedance of the electric wire is not matched with the electric connector, problems such as low transmission efficiency and noise are caused by reflection of a high-frequency signal, and therefore, in order to suppress such problems, matching of the characteristic impedance (matching) is required.
In contrast, in the conventional electrical connector, the diameter of the pressure-bonding section is increased by further pressing the cylindrical metal sleeve from above the pressure-bonding section, thereby eliminating the mismatch of the characteristic impedance.
However, in the conventional electrical connector, when the cylindrical metal sleeve is further crimped from above the pressure-bonding section, the metal sleeve and the pressure-bonding section need to be strongly crimped so as to obtain electrical connection reliability between the metal sleeve and the pressure-bonding section, and therefore, there is a possibility that the pressure-bonding section of the terminal is plastically deformed. Thus, the following problems arise: the connection reliability of the electric wire and the terminal is low, and the electric wire may fall off from the crimping portion of the terminal in an extreme case.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2003-163058
Disclosure of Invention
Problems to be solved by the invention
The invention provides an electric connector which can obtain good electric characteristics and can eliminate the load which has bad influence on the connection part of a terminal member and a signal wire so as to realize the stable contact of the terminal member and the signal wire.
Means for solving the problems
The electric connector of the invention comprises: an insulating housing; a terminal member accommodated in the housing, having conductivity, and including a front connection portion connected to a connection target, and a rear connection portion connected to a signal line of an electric wire and having a smaller diameter than the front connection portion in a state of being connected to the signal line; and a connecting member having conductivity, provided around an outer peripheral surface of the rear connecting portion, locked to the housing by an elastic force, and elastically contacting the rear connecting portion.
The method for manufacturing an electrical connector according to the present invention is a method for manufacturing an electrical connector connected to an electric wire, the method including: connecting a signal line of the electric wire to the rear connection portion of a conductive terminal member having a front connection portion and a rear connection portion connected to a connection object; a step of housing the terminal member to which the signal line is connected at the rear connection portion in a housing having an insulating property; and a step of elastically contacting the elastically deformable conductive connecting member with the rear connecting portion of the terminal member accommodated in the housing, locking the rear connecting portion to the housing, and disposing the connecting member around an outer peripheral surface of the rear connecting portion having a smaller diameter than the front connecting portion.
The diameter of a portion formed by a rear connecting portion after connecting a signal line to the rear connecting portion and a connecting member connected to the rear connecting portion is made larger than the diameter of the rear connecting portion to match characteristic impedance, and the connecting member is brought into elastic contact with the outer peripheral surface of the rear connecting portion, whereby a load that adversely affects the connection with the signal line is not applied to the rear connecting portion.
Effects of the invention
According to the present invention, it is possible to obtain good electrical characteristics and to realize stable contact between the terminal member and the signal line by eliminating a load that adversely affects the connection portion between the terminal member and the signal line.
Drawings
Fig. 1 is a perspective view of an electrical connector according to an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a plan view of the inside of the electrical connector according to the embodiment of the present invention in a state where the holding member is inserted.
Fig. 4 is a partially enlarged sectional view of the electrical connector of the embodiment of the present invention.
Fig. 5 is a plan view of the inside of the electrical connector according to the embodiment of the present invention before being inserted into the holding member.
Fig. 6 is a plan view of a terminal member provided in the electrical connector according to the embodiment of the present invention.
Fig. 7 is a side view of a terminal member provided in the electrical connector according to the embodiment of the present invention.
Fig. 8 is a rear view of a terminal member provided in the electrical connector according to the embodiment of the present invention.
Fig. 9 is a bottom view of the holding member provided in the electrical connector according to the embodiment of the present invention.
Fig. 10 is a plan view of a clamping member provided in an electrical connector according to an embodiment of the present invention.
Fig. 11 is a side view of a clamping member provided in the electrical connector according to the embodiment of the present invention.
Fig. 12 is a front view of a clamping member provided in the electrical connector according to the embodiment of the present invention.
Description of the reference numerals
1: an electrical connector; 10: a shield case; 20: an outer insulating member; 30: an inner insulating member; 40: a terminal guide member; 41: a guide groove; 42: a snap-fit protrusion; 50: a terminal member; 51: a front connecting part; 52: a rear connection portion; 52 a: an outer peripheral surface; 53: a connecting portion; 54: a card-holding section; 55: a card-holding section; 60: a clamping member; 61: a clamping piece; 61 a: a top end; 62: a clamping sheet; 63: an opening part; 100: an electric wire; 101: a shielding part; 102: a core wire; 102 a: a center conductor; 411: a front expanding part; 412: a rear expanding part; 413: a step portion; 414: a step portion; 511: a crotch part; 512: a lateral end; 513: a groove; 521: a through hole; 611: an elastic connection portion; 612: a protrusion; 613: an abutting connection part; 614: a pressing part; 615: a through hole; 621: an extension setting part; 622: an extension setting part; 623: a locking portion.
Detailed Description
Hereinafter, an electrical connector according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings as appropriate. In the figure, the x-axis, the y-axis, and the z-axis form a three-axis orthogonal coordinate system, and the positive direction of the y-axis is defined as the front direction, the negative direction of the y-axis is defined as the rear direction, the x-axis direction is defined as the left-right direction, the positive direction of the z-axis is defined as the upper direction, and the negative direction of the z-axis is defined as the lower direction.
< Structure of electric connector >
The structure of the electrical connector 1 according to the embodiment of the present invention will be described in detail below with reference to fig. 1 to 12.
The electrical connector 1 of the present embodiment connects a mating connector, not shown, to the electric wire 100. Here, the electric wire 100 has a wire harness structure in which a plurality of core wires 102 are covered with one shield 101. Each core wire 102 is composed of a central conductor 102a as a signal line, an insulator, not shown, covering the central conductor 102a, and a shield, not shown, covering the insulator. The number of cores 102 is here illustrated as 8. The electrical connector 1 is not limited to the number of wires 100 connected to the core wires 102 and the configuration described above, and may be connected to a necessary number of wires 102 or wires having a configuration other than the configuration described above that can transmit a high-frequency signal.
The electrical connector 1 includes: a shield case 10, an external insulation member 20, an internal insulation member 30, a terminal guide member 40, a terminal member 50, and a clamping member 60. The outer insulating member 20, the inner insulating member 30, and the terminal guide member 40 constitute an insulating housing.
The x, y, and z axes shown in fig. 4 to 12 show directions of the terminal member 50 and the holding member 60 accommodated in the upper surface of the terminal guide member 40 for convenience of description, and directions of the terminal member 50 and the holding member 60 accommodated in the lower surface of the terminal guide member 40 are opposite to each other in the vertical and horizontal directions.
The shield case 10 is formed of a material having conductivity. The shield case 10 accommodates and holds the inner insulating member 30 and accommodates the outer insulating member 20. The shield case 10 is connected to the shield portion 101 of the electric wire 100.
The external insulating member 20 is formed of a material having insulating properties. The outer insulating member 20 receives and holds the shield case 10 receiving the inner insulating member 30.
The internal insulating member 30 is formed of a material having insulating properties. In the internal insulating member 30, the outer surface is covered by the shield case 10, and the terminal guide member 40 is accommodated and held inside. The internal insulating member 30 has an insertion hole 31 opened at the front end to expose the terminal member 50 to the outside.
The terminal guide member 40 is formed of a material having an insulating property. The terminal guide member 40 is provided with engaging projections 42 that protrude from the left and right side surfaces and engage with unshown engaging holes of the internal insulating member 30 to hold the terminal guide member 40 in the internal insulating member 30. The terminal guide member 40 has a guide groove 41 extending in the front-rear direction between the front end and the rear end and positioning and holding the terminal member 50.
The guide grooves 41 are provided at the upper surface and the lower surface of the terminal guide member 40 at a predetermined interval in the left-right direction, and are provided in the same number as the number of the core wires 102 of the connected electric wire 100. The front end of the guide groove 41 is located rearward of the insertion hole 31. The guide groove 41 includes: a front widening portion 411 widening in the left-right direction, a rear widening portion 412 widening in the left-right direction and provided behind the front widening portion 411, a step portion 413 provided at the front end of the front widening portion 411, and a step portion 414 provided at the rear end of the front widening portion 411. The rear enlarged width portion 412 is an accommodating portion which is enlarged in width compared to the front enlarged width portion 411 and accommodates the rear connecting portion 52 and the clip member 60.
The terminal member 50 is formed of a material having conductivity. The terminal member 50 includes: a front connecting portion 51, a rear connecting portion 52, a connecting portion 53, a locking portion 54, and a locking portion 55.
The front connection portion 51 is cylindrical, is connected to a connection target, not shown, such as a conductive terminal of a mating connector, and includes: a branch 511, a side 512, and a groove 513.
The branch portion 511 is provided in front of the front connection portion 51, and has a shape of branching into two. The side ends 512 face each other with a groove 513 interposed therebetween. The groove 513 is provided by facing the side end portions 512 of the front connecting portion 51, and extends from the front end to the rear end of the front connecting portion 51.
As shown in fig. 8, the rear connecting portion 52 includes a through hole 521 penetrating in the front-rear direction. The central conductors 102a of the core wires 102 of the electric wires 100 inserted through the through holes 521 are connected to the rear connection portion 52 by pressure contact. As shown in fig. 4, the rear connecting portion 52 has a smaller diameter than the front connecting portion 51 in a state of being connected to the center conductor 102 a. The exposed surface 52b of the outer peripheral surface 52a of the rear connecting portion 52 is exposed from the open portion 63 of the clamping member 60. The shape of the rear connection portion 52 to which the center conductor 102a is crimped when viewed from the rear is not limited to the shape shown in fig. 4, and may be a perfect circle or a substantially circle other than the shape shown in fig. 4.
The connection portion 53 connects the front connection portion 51 and the rear connection portion 52.
The locking portion 54 protrudes laterally from the front connecting portion 51, and is locked to the step portion 413 of the front expanding portion 411 with its front end parallel to the left-right direction.
The locking portion 55 protrudes laterally from the front connecting portion 51 behind the locking portion 54, and is locked to the step portion 414 of the front expanding portion 411 with the rear end parallel to the left-right direction. The length from the front end of the locking portion 54 to the rear end of the locking portion 55 is slightly longer than the length of the front-rear direction of the front widening portion 411.
The holding member 60 is formed of a material having conductivity, and is formed to be elastically deformable as a whole. The clamping member 60 is accommodated in the rear enlarged width portion 412 and is provided around the outer peripheral surface 52a of the rear connecting portion 52. The clamping member 60 is a connecting member that is attached to the rear connecting portion 52 in a clamping manner, is caught to the inner wall of the rear enlarged width portion 412 of the terminal guide member 40 by its own elastic force, and is elastically contacted with the outer peripheral surface 52a of the rear connecting portion 52. The clamping member 60 includes: a clamping piece 61, a locking piece 62 and an opening part 63.
The holding piece 61 has a cross-sectional shape cut by a plane (x-z plane) orthogonal to the front-rear direction of approximately コ, accommodates the entire rear connecting portion 52, and holds the outer peripheral surface 52a of the rear connecting portion 52 from the left and right. The clamping piece 61 includes: elastic connection portion 611, protruding portion 612, contact connection portion 613, pressing portion 614, and through hole 615.
The elastic connection portion 611 elastically contacts the outer peripheral surface 52a of the rear connection portion 52 in the left and right directions.
The protruding portion 612 is provided opposite the outer peripheral surface 52a and protrudes in a direction away from the outer peripheral surface 52 a.
The abutting connection portion 613 is provided between the pair of protruding portions 612. The contact connecting portion 613 is in contact with and connected to an opposite surface 52c of the exposed surface 52b exposed from the opening portion 63 in the outer peripheral surface 52a (see fig. 4).
The pair of pressing portions 614 is provided symmetrically with respect to a virtual line parallel to a y-z plane passing through the center of the center conductor 102a when viewed from the rear, and linearly protrudes in a direction (upward in fig. 4) opposite to a direction (downward in fig. 4) in which the holding member 60 is accommodated in the rearward enlarged width portion 412. The tip end portion (upper end portion in fig. 4) of the pressing portion 614 in the projecting direction (upper side in fig. 4) and the tip end portion of the projecting portion 612 in the projecting direction are located on the same plane parallel to the x-z plane or the same y-z plane.
The through hole 615 penetrates the plate thickness direction, extends in the front-rear direction at the center of the clamping piece 61 in the front-rear direction, and is formed when the pressing portion 614 is formed by cutting.
The locking piece 62 includes: an extension portion 621 that is folded outward from a tip 61a of the holding piece 61 in the direction in which the rearward expanding portion 412 is accommodated, and then extends inward so as to face the holding piece 61; an extension portion 622 extending outward from the distal end of the extension portion 621 in the extension direction; and a locking portion 623 that is provided at the distal end of the extending portion 622 in the extending direction and is locked to the inner wall of the rear widening portion 412 of the terminal guide member 40.
The opening 63 opens the inside of the clamping member 60 to the outside so that the terminal member 50 can be accommodated inside the clamping member 60.
< method for manufacturing electric connector >
The method of manufacturing the electrical connector 1 according to the embodiment of the present invention is explained in detail as follows.
First, in a state where the center conductor 102a of each core wire 102 of the electric wire 100 is inserted through the through hole 521 of the rear connection portion 52 of the terminal member 50, the center conductor 102a is fixed to the rear connection portion 52 by pressure-bonding the rear connection portion 52, and the center conductor 102a and the terminal member 50 are connected.
Next, the terminal member 50 to which the center conductor 102a is connected is accommodated in the guide groove 41 of the terminal guide member 40, the locking portion 54 is locked to the step portion 413 of the front widened portion 411, the locking portion 55 is locked to the step portion 414 of the front widened portion 411, and the rear connecting portion 52 is accommodated in the rear widened portion 412, so that the state shown in fig. 5 is achieved.
Next, after the rear widened portion 412 and the holding member 60 are aligned, the distal end portion of the pressing portion 614 of the holding member 60 in the protruding direction is pressed in the direction opposite to the protruding direction (downward direction in fig. 4) by a jig or the like (not shown), and the holding member 60 is accommodated in the rear widened portion 412. At this time, the pressing portion 614 is pressed without pressing the portion of the clamping member 60 other than the pressing portion 614 such as the protruding portion 612, so that the clamping member 60 can be prevented from being deformed, and therefore, the electrical performance of the electrical connector 1 can be prevented from being degraded. Further, since the pair of protruding portions 612, which are provided so as to be bilaterally symmetrical with respect to a virtual line parallel to a y-z plane passing through the center of the center conductor 102a when viewed from the rear, are pressed along the virtual line, the clip member 60 can be accommodated without being inclined with respect to the rear enlarged width portion 412.
Then, until the contact connecting portion 613 comes into contact with the rear connecting portion 52, the holding member 60 is held in the rear enlarged width portion 412, and the rear connecting portion 52 is held in the holding piece 61, whereby the holding piece 61 of the holding member 60 is pressed against the rear connecting portion 52 to be enlarged in diameter in the right and left directions, and the holding piece 61 is elastically brought into contact with the rear connecting portion 52 by the elastic restoring force of the holding piece 61. Further, the locking portions 623 of the locking pieces 62 are pressed by the inner wall of the rear enlarged width portion 412, so that the extending portions 621 and the extending portions 622 are elastically deformed inward, and the locking portions 623 of the locking pieces 62 are locked by the inner wall of the rear enlarged width portion 412, whereby the terminal member 50 and the clamping member 60 are temporarily fixed to the terminal guide member 40 in the state shown in fig. 3.
Accordingly, since the clamping member 60 is elastically brought into contact with the rear connector 52 without pressure-contacting the rear connector 52, stable connection between the center conductor 102a and the rear connector 52 can be obtained, deterioration of connection performance and pressure-contacting strength can be prevented, and processing equipment can be simplified, thereby reducing manufacturing costs. Further, by using the contact connecting portion 613 as a stopper portion for accommodating the rear connecting portion 52 in the clamping member 60 and as a connecting portion for electrically connecting the clamping member 60 and the rear connecting portion 52, the clamping member 60 can be simply configured, and the product cost and the manufacturing cost can be reduced.
In the temporarily fixed state shown in fig. 3, as shown in fig. 4, the entire rear connecting portion 52 is accommodated inside the clamping piece 61, so that the distance between the elastic connecting portion 611 and the distal end 61a can be increased, and therefore the clamping member 60 can be reliably prevented from moving up and falling off from the rear enlarged portion 412. Further, by setting the clamping piece 61 to a length that can accommodate the entire rear connecting portion 52 inside, the length from the distal end 61a to the locking portion 623 can be increased, and the spring force when locking the locking portion 623 in the rear enlarged width portion 412 can be increased, so that the locking portion 623 can be stably locked in the rear enlarged width portion 412.
Next, the terminal guide member 40 to which the terminal member 50 and the sandwiching member 60 are temporarily fixed is inserted into the internal insulating member 30, and the engagement protrusion 42 of the terminal guide member 40 is engaged with an engagement hole, not shown, of the internal insulating member 30, thereby fixing the terminal guide member 40 to the internal insulating member 30. Thus, the terminal member 50 and the holding member 60 temporarily fixed to the internal insulation member 30 are accommodated in the internal insulation member 30 without falling off from the internal insulation member 30 by blocking the guide groove 41 by the inner wall of the internal insulation member 30.
Next, the internal insulating member 30 to which the terminal guide member 40 is fixed is inserted into the external insulating member 20 and fixed to the external insulating member 20 by a fixing mechanism not shown.
Next, the shield case 10 is assembled so as to cover the outer surface of the external insulating member 20, thereby completing the manufacture and assembly of the electrical connector 1.
< Electrical characteristics of an Electrical connector >
The electrical characteristics of the electrical connector 1 according to the embodiment of the present invention will be described in detail below with reference to fig. 4.
By providing the holding member 60 elastically contacting the rear connecting portion 52 around the outer peripheral surface 52a of the rear connecting portion 52 of the terminal member 50, the diameter of the rear connecting portion 52 side can be set to the diameter R2 of the holding member 60 larger than the diameter R1 of the rear connecting portion 52. Accordingly, since the difference between the diameter R2 on the rear connector 52 side and the diameter R3 of the front connector 51 can be reduced, the cross section of the rear connector 52 can be adjusted by the clamping member 60, and the characteristic impedance of the entire electrical connector 1 can be matched.
By adjusting the amount of projection of the projection portion 612 of the clip member 60 in accordance with the diameter R3 of the front connector 51 to adjust the diameter R2, the difference between the diameter R2 on the rear connector 52 side and the diameter R3 of the front connector 51 can be reduced in accordance with the size of the diameter R3 of the front connector 51, and the characteristic impedance of the entire electrical connector 1 can be matched. Even when the abutment connection portion 613 is provided in the clamp member 60, the diameter R2 on the rear connection portion 52 side can be increased by providing the protruding portion 612.
As described above, according to the present embodiment, the clamping member 60 is provided to be provided around the outer peripheral surface 52a of the rear connecting portion 52, is locked to the terminal guide member 40 by the elastic force, is in elastic contact with the rear connecting portion 52, and has conductivity, thereby obtaining excellent electrical characteristics, and can achieve stable contact between the terminal member and the signal line by eliminating a load that adversely affects the connecting portion between the terminal member and the signal line.
In the present invention, the types, arrangement, numbers, and the like of the members are not limited to the above-described embodiments, and the members may be appropriately modified to replace the components appropriately, for example, to realize equivalent functions and effects, within a range not departing from the technical spirit of the present invention.
Specifically, although the protruding portion 612 is provided on the clamping member 60 in the above embodiment, the protruding portion may not be provided on the clamping member, and a portion where the protruding portion of the clamping member is provided may be flat.
In the above embodiment, the abutment connection portion 613 is provided to the clamping member 60, but the abutment connection portion 613 may not be provided. In this case, the portion where the abutment connection portion of the clamping member is provided is brought into abutment with the rear connection portion 52 or is opposed to the rear connection portion 52 with a predetermined distance.
In the above embodiment, the connecting member connected to the rear connecting portion 52 is not limited to the clamping member 60 having the clamping shape, and may have any shape as long as it is provided around the outer peripheral surface 52a of the rear connecting portion 52, can be locked to the terminal guide member 40 by the elastic force, and is in elastic contact with the outer peripheral surface 52 a.
In the above embodiment, the rear connection portion 52 and the center conductor 102a are not limited to the pressure-contact connection, and may be connected by a connection method other than pressure-contact, in which the diameter is smaller than the diameter of the front connection portion 51.
In the above embodiment, the guide grooves 41 are provided on the upper surface and the lower surface of the terminal guide member 40 to align the core wires 102, but the core wires 102 may be aligned by providing a guide groove only on one of the upper surface and the lower surface of the terminal guide member.
In the above embodiment, the rear connection portion 52 is entirely housed inside the clamping piece 61, but the rear connection portion 52 may be partially housed inside the clamping piece.
In the above embodiment, the gripping member 60 is elastically brought into contact with the outer peripheral surface 52a of the rear connecting portion 52, but the gripping member 60 is not limited to this, and the gripping member 60 may be elastically brought into contact with a portion other than the outer peripheral surface of the rear connecting portion as long as the gripping member 60 can be elastically brought into contact with the rear connecting portion.
Industrial applicability
The present invention is suitable for an electrical connector connected to an electric wire and a method of manufacturing the electrical connector.
Claims (7)
1. An electrical connector, comprising:
an insulating housing;
a terminal member accommodated in the housing, having conductivity, and including: a front connection portion connected to a connection object, and a rear connection portion connected to a signal line of an electric wire and having a smaller diameter than the front connection portion in a state of being connected to the signal line; and
and a connecting member having conductivity, provided around an outer peripheral surface of the rear connecting portion, locked to the housing by an elastic force, and elastically contacting the rear connecting portion.
2. The electrical connector of claim 1,
the connecting member includes: an elastic connection portion elastically contacting the outer peripheral surface; and a protruding portion provided opposite to the outer peripheral surface and protruding in a direction away from the outer peripheral surface.
3. The electrical connector of claim 2,
the connecting member includes an opening portion that opens the inside to the outside so that the terminal member can be accommodated therein,
the protruding portion includes an abutting portion that abuts against an opposite surface of an exposed surface of the outer peripheral surface that is exposed to the outside from the open portion.
4. The electrical connector of any one of claims 1 to 3,
the rear connecting portion is crimped with the signal line.
5. The electrical connector of any one of claims 1 to 3,
the housing is provided with an accommodating portion that accommodates the connecting member,
the connecting member includes a pressing portion linearly protruding in a direction opposite to a direction in which the accommodating portion is accommodated.
6. The electrical connector of any one of claims 1 to 3,
the connecting member includes: a clamping piece which accommodates the whole of the rear connecting part and elastically contacts with the rear connecting part by clamping the rear connecting part from left and right; and a locking piece that is folded back outward from a distal end of the clamping piece, faces the clamping piece, and is locked to the housing.
7. A method for manufacturing an electrical connector connected to an electric wire, comprising:
connecting a signal line of the electric wire to the rear connection portion of a conductive terminal member having a front connection portion and a rear connection portion connected to a connection object;
a step of housing the terminal member to which the signal line is connected at the rear connection portion in a housing having an insulating property; and
and a step of elastically contacting the elastically deformable conductive connecting member with the rear connecting portion of the terminal member accommodated in the housing, locking the rear connecting portion to the housing, and disposing the connecting member around an outer peripheral surface of the rear connecting portion having a smaller diameter than the front connecting portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018118520A JP6485582B1 (en) | 2018-06-22 | 2018-06-22 | Electrical connector and electrical connector manufacturing method |
| JP2018-118520 | 2018-06-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110635257A CN110635257A (en) | 2019-12-31 |
| CN110635257B true CN110635257B (en) | 2020-11-27 |
Family
ID=65802282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910262668.6A Active CN110635257B (en) | 2018-06-22 | 2019-04-02 | Electric connector and manufacturing method thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6485582B1 (en) |
| CN (1) | CN110635257B (en) |
| DE (1) | DE102019116786B4 (en) |
| TW (1) | TWI733045B (en) |
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| JP2009054483A (en) * | 2007-08-28 | 2009-03-12 | Auto Network Gijutsu Kenkyusho:Kk | Terminal crimping structure, and shielded connector equipped with this terminal crimping structure |
| WO2009113687A1 (en) * | 2008-03-14 | 2009-09-17 | 矢崎総業株式会社 | Chain-terminal, inner conductor terminal, method for manufacturing inner conductor terminal, and pressure connection method of coaxial cable and inner conductor terminal |
| CN101569063A (en) * | 2007-05-29 | 2009-10-28 | 株式会社自动网络技术研究所 | Shield connector |
| JP2010049855A (en) * | 2008-08-20 | 2010-03-04 | Autonetworks Technologies Ltd | Shielded connector |
| JP2010177127A (en) * | 2009-01-30 | 2010-08-12 | Autonetworks Technologies Ltd | Shielded connector |
| JP2010182631A (en) * | 2009-02-09 | 2010-08-19 | Autonetworks Technologies Ltd | Cable connector and cable with the same |
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| JP3365550B2 (en) * | 1999-05-07 | 2003-01-14 | 住友電装株式会社 | Shield terminal |
| JP3946096B2 (en) | 2001-09-11 | 2007-07-18 | 株式会社オートネットワーク技術研究所 | Shield connector |
| TWM483571U (en) * | 2014-02-11 | 2014-08-01 | Hon Hai Prec Ind Co Ltd | Coaxial connector |
| TWM554646U (en) * | 2017-09-26 | 2018-01-21 | Cvilux Corp | Receptacle connector and its socket terminal |
-
2018
- 2018-06-22 JP JP2018118520A patent/JP6485582B1/en active Active
- 2018-08-14 TW TW107128258A patent/TWI733045B/en active
-
2019
- 2019-04-02 CN CN201910262668.6A patent/CN110635257B/en active Active
- 2019-06-21 DE DE102019116786.8A patent/DE102019116786B4/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101569063A (en) * | 2007-05-29 | 2009-10-28 | 株式会社自动网络技术研究所 | Shield connector |
| JP2009054483A (en) * | 2007-08-28 | 2009-03-12 | Auto Network Gijutsu Kenkyusho:Kk | Terminal crimping structure, and shielded connector equipped with this terminal crimping structure |
| WO2009113687A1 (en) * | 2008-03-14 | 2009-09-17 | 矢崎総業株式会社 | Chain-terminal, inner conductor terminal, method for manufacturing inner conductor terminal, and pressure connection method of coaxial cable and inner conductor terminal |
| JP2010049855A (en) * | 2008-08-20 | 2010-03-04 | Autonetworks Technologies Ltd | Shielded connector |
| JP2010177127A (en) * | 2009-01-30 | 2010-08-12 | Autonetworks Technologies Ltd | Shielded connector |
| JP2010182631A (en) * | 2009-02-09 | 2010-08-19 | Autonetworks Technologies Ltd | Cable connector and cable with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202002419A (en) | 2020-01-01 |
| DE102019116786A1 (en) | 2019-12-24 |
| CN110635257A (en) | 2019-12-31 |
| TWI733045B (en) | 2021-07-11 |
| JP6485582B1 (en) | 2019-03-20 |
| DE102019116786B4 (en) | 2023-06-01 |
| JP2019220409A (en) | 2019-12-26 |
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