Classifications

• • 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
  • 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
  • H01R13/6582—Shield structure with resilient means for engaging mating connector
• • 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
  • H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable

Definitions

• the present invention relates to a connector plug mainly suitable for transmitting digital signals in a case where a VTR, a TV, a CD player, a tuner, an amplifier, etc. are connected to each other using a connector composed of a connector plug and a connector socket. It is. Background art
• the connector 10 is composed of a connector socket 12 provided on the main body chassis side and a connector plug 11 attached to the end of the cable 25, as shown in FIG. 7 (a).
• a plurality of contacts 23 are provided inside an open front of a housing 22, and the outer periphery of the housing 22 is covered with a metal shell 32 having a rectangular cylindrical shape.
• the plurality of contacts 23 are connected to each signal line and power supply line of the cable 25, and the connection portion is covered with a cover 24.
• a bulged portion 35 for providing a spring property was formed.
• the conventional connector plug 11 is intended to maintain contact with the connector socket 12 only by these bulging portions 35.
• the size is currently limited due to the demand for miniaturization. There was a problem that a good spring property could not be obtained.
• an object of the present invention is to provide a connector plug that can obtain sufficient spring properties without substantially changing the shape of a conventional metal shell.
• Another object of the present invention is to provide a connector plug whose entire structure is compact, and in which the metal shell portion is securely and closely connected to the connector socket. Disclosure of the invention
• the present invention comprises a housing 78 having a plurality of contacts 82 in a socket fitting hole 81, and a metal case of a shield case 79 made of a conductive metal plate.
• the metal shell portion 88 has a substantially rectangular cylindrical shape, and bulges out on both sides of the approximately rectangular cylindrical shape of the bracket, or both sides of the substantially rectangular cylindrical shape.
• An elastic part 77 which is bent so that the lower part of the part is bent outward, is provided in the longitudinal direction, and a cutout 89 is formed at the bottom in the length direction to give flexibility to the metal shell part 88 itself.
• a connector plug characterized by the following.
• the metal shell portion 88 When the connector plug 41 is inserted into the connector socket 42, the metal shell portion 88 has flexibility, and the metal shell portion 88 is oriented in the opposite direction due to the elastic portion 77 of the metal shell portion 88. The escape when pushed in is absorbed by the notch 89, and the metal shell portion 88 is securely connected to the connector socket 42 tightly.
• the metal shell portion 88 itself has flexibility, it does not require an elastic portion such as a protruding portion as in the related art, and the entire structure is compact.
• FIG. 1 is an exploded perspective view showing one embodiment of a connector plug according to the present invention.
• FIG. 2 is a sectional view of a connector plug according to the present invention and a connector socket fitted and connected to the connector plug.
• FIG. 3 (a) is a cross-sectional view showing a first embodiment of the elastic portion 77 in the metal shell portion 88.
• FIG. 3 (b) is a cross-sectional view showing a second embodiment of the elastic portion 77 in the metal shell portion 88.
• FIG. 4 is an exploded perspective view of the connector socket in FIG.
• FIG. 5 is a cross-sectional view taken along line AA in FIG.
• FIG. 6 (a) is a cross-sectional view of the cable 25.
• FIG. 6 (b) is a side view of the cable 25.
• FIG. 6 (b) is a side view of the cable 25.
• FIG. 6 (c) is a cross-sectional view showing an example different from the cable 25 of FIG. 6 (a).
• FIG. 7 (a) is a perspective view of a conventional connector plug and a connector socket
• FIG. 7 (b) is a cross-sectional view of a tip portion of the connector plug in FIG. 7 (a).
• reference numeral 40 denotes a connector according to the present invention.
• the connector 40 includes a connector plug 41 and a connector socket 42.
• the connector plug 41 includes a housing 78 made of an insulating resin as shown in an exploded perspective view of FIG. 1, an upper shield case 79 made of a conductive metal plate, and a lower shield case also made of a conductive metal plate. 80, an upper cover 95 made of an insulating resin as shown in FIGS. 2 and 5, and a lower cover 96 made of the same insulating resin.
• the housing 78 has a socket fitting hole 81 on the front surface, a bottom groove 85 formed on the lower surface in the longitudinal direction, a half lock hole 87 on the upper surface, and a vertical upper and lower back stopper.
• the projection 86 protrudes to form a chamfer at the front end.
• the housing 78 is integrally formed with one end of each of the plurality of contacts 82 facing the socket fitting hole 81 and the other end of the contact 82 coming out from the rear.
• a terminal portion 83 is formed at a portion of the contact 82 coming out behind.
• the terminal portion 83 has a semicircular shape with a slightly larger diameter than the signal line 26 to be connected, and the bottom of the terminal portion 83 has melted.
• a small hole 84 large enough to allow the solder 19 to flow naturally but not flow downward is provided. Specifically, assuming that the diameter of the signal line 26 is 0.3 mm, the terminal 8 The diameter of the semicircle 3 is about 1.0 mm, and the diameter of the small hole 84 is about 0.3 mm. Since the terminal portion 83 has a small interval between adjacent portions, it is preferable that the terminal portion 83 be bent alternately upward and downward so as to be staggered.
• the upper shield case 79 has a metal shell portion 88 integrally formed at the front end.
• the metal shell portion 88 has a substantially rectangular cylindrical shape as a whole to insert the housing 78 from behind, but the bottom portion is folded into a slightly groove shape so as to fit into the bottom groove 85.
• a notch 89 unique to the present invention is formed on the bottom part for escape when the metal shell part 88 itself has elasticity, with a gap in the length direction.
• bulging elastic portions 77 are provided on both sides of the metal shell portion 88 in the longitudinal direction.
• an elastic portion 77 is provided in the longitudinal direction by bending the lower part of both sides of the metal shell portion 88 outwardly.
• a half-lock hole 90 is formed in the upper plate of the metal shell portion 88, and a cutout portion 91 is formed in the upper plate and the lower plate so that the retaining projection 86 protrudes.
• the rear end of the upper shield case 79 has a shallow lid shape formed by an upper plate and four side plates, and has a semicircular portion 93 bent inward from the rear end, and bent inward from the side.
• the side plate connection terminal portions 92 are integrally formed.
• the lower shield case 80 has a box shape without a lid formed by a bottom plate and four side plates, contrary to the upper shield case 79, and has a semicircular portion 93 bent inward from the rear end side plate.
• the left and right side plates are formed with a plurality of protrusions 94 for protruding inward to ensure contact with the upper shield case 79.
• the upper cover 95 and the lower cover 96 have a shape that is horizontally split so as to form a substantially rectangular tubular shape when fitted together.
• Engagement parts 97 are formed on the engagement parts on both sides, square holes 36 are formed on the front, and round holes are formed on the rear 37, a hollow portion 38 is formed inside, and a locking groove 98 and a locking groove 99 are formed on the inner wall surfaces of the square hole 36 and the round hole 37, respectively.
• the signal wires 26 are placed one by one on the terminal portions 83 of the contact 82 and connected with the solder 19. At this time, it is checked from the lower surface of the terminal portion 83 whether the solder 19 flows into the small hole 84. After connection, the insulating tube 39 is moved to the connection part and heated, so that the insulating tube 39 thermally contracts and adheres tightly to the signal line 26 and the terminal 83 to protect it from short circuits and disconnections. .
• the upper cover 95 is put on the upper shield case 79 side, and the lower cover 96 is put on the lower shield case 80 side to press-fit the upper and lower locking portions 97.
• the retaining projections 86 fit into the locking grooves 98, the upper shield case 79 and the lower shield case 80 fit into the hollow portions 38, and the tip of the bush 34. Is fitted into the locking groove 99, the tip of the metal shell part 88 protrudes from the square hole 36, and the connector plug 41 Is completed.
• the connector socket 42 includes a housing 43 made of an insulating resin, a shield case 44 made of a conductive metal plate, a shield top lid 45 made of a conductive metal plate, and a shield bottom plate 46 made of a conductive metal plate. Consists of
• the housing 43 is provided with a terminal receiving portion 48 protrudingly provided on the front opening 49 side to be fitted to the connector plug 41, and a plurality of terminals 47 are provided at a predetermined interval in the terminal receiving portion 48.
• the tip of this terminal 47 protrudes slightly from below the terminal receiving portion 48 to form a contact portion 54, and the other end of the terminal 47 protrudes from the back of the housing 43.
• the terminal section 53 is provided.
• An upper cutout 50 is formed in the upper plate portion of the housing 43 from the front end, and two engaging protrusions 51 are formed in the side plate portion to provide a clearance for a locking claw 68 described later.
• Two engaging protrusions 51 are formed in the side plate portion to provide a clearance for a locking claw 68 described later.
• the shield case 4 4 is provided with a fitting portion 5 at the center thereof by punching a conductive metal plate.
• a fitting portion 57 for determining the insertion direction is provided at the bottom of the fitting portion 56.
• a side plate portion 58 is bent rearward from both sides of the fitting portion 56, and a slit 59 is formed on the side plate portion 58 from the rear end.
• a tongue piece 60 is formed.
• a screwing piece 6 1 and a fixing piece 6 2 are bent outward at the bottom of the side plate portion 5 8, a screw hole 63 is formed in the screwing piece 61, and a fixing hole 62 is formed in the fixing piece 62. Forming a V-shaped notch 64.
• the shield upper lid 45 is bent in a downward U-shape without a bottom using a conductive metal plate, and the front end portion of the upper surface 65 is bent inward by about 180 degrees to form a housing.
• Flock pieces 6 6 are integrally formed, and locking pawls 6 8 are formed by cutting and raising the side plates 6 7 on both sides, and further, screwing pieces 6 9 are bent outward at the bottom of the side plates 6 7.
• a screw hole 70 is formed in the screwing piece 69, and a plurality of protrusions 71 are formed integrally with the screw hole 70 in order to improve reliability when tightening the screw. .
• the shield bottom plate 46 is made of an elongated conductive metal plate, and the central portion is upward.
• a positioning hole 73 is formed, screw holes 75 are drilled in the integral screw stoppers 74 at both ends, and the curved bottom 72 and the screw stoppers 74 are also provided.
• a crimping piece 76 protruding upward is formed between the two.
• the housing 43 is fitted so that the engaging projection 51 thereof is guided from the rear of the shield case 44 to a slot 59, and after the fitting, the tongue piece 60 is fixed to the fixing recess 55. Fold it to the side and fix it. Then, the terminal receiving portion 48 is made to face the front surface of the fitting portion 56.
• the shield bottom plate 46 is applied from the lower surface of the housing 43 so that the positioning hole 73 and the positioning projection 52 are fitted. Then, while aligning the screw holes 75 of one of the screw pieces 74, the three pieces of screw pieces 74, 61, 69 are closely attached, and the tip of the caulking piece 76 is bent and fixed. I do.
• the connector socket 42 assembled in this manner is mounted on a predetermined position of the wiring board 14 while fitting the fitting portion 56 into the through hole 15 of the chassis 13, and is fixed with the screw 20.
• the fixing pieces 62 are fixed with solder 19.
• terminal 53 of terminal 47 is connected with solder 19.
• the contact 82 contacts the contact part 54 of the terminal 47 and is securely connected electrically, and the half lock piece 66 of the shield lid 45 is connected to the metal shell.
• the half plug hole 90 of the part 88 and the half lock hole 87 of the housing 78 are fitted, and the connector plug 41 is half-locked to the connector socket 42.
• the connector socket 42 When an external force is applied to the connector plug 41 in a direction perpendicular to the insertion direction, for example, when the connector plug 41 is inserted into or removed from the connector socket 42,
• the connector socket 42 is not only fixed with the screw 20 but also with the fixing piece 62 of the shield case 44, so that the terminal 53 of the terminal 47 peels off. And can withstand long-term use.
• the metal shell portion 88 of the present invention has a cylindrical shape, and a cutout 89 for providing flexibility to the metal shell portion 88 itself at the bottom is formed in the length direction, so that a projection portion such as a conventional one is provided.
• the entire structure is compact without the need for elastic parts.
• the metal seal portion 88 has a substantially rectangular cylindrical shape, and elastic portions 77 bulged on both sides of the substantially rectangular cylindrical shape are provided in the longitudinal direction, or the lower portions of both sides of the substantially rectangular cylindrical shape are outside.
• An elastic portion 77 bent in the longitudinal direction is provided in the longitudinal direction, and a notch 89 is formed at the bottom in the length direction to give flexibility to the metal shell portion 8 8 itself.
• the connector plug according to the present invention mainly transmits digital signals. Suitable for use in

Landscapes

• Details Of Connecting Devices For Male And Female Coupling (AREA)
• Mechanical Coupling Of Light Guides (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Details Of Aerials (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

Family

ID=15857852

Family Applications (1)

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Cited By (1)

Families Citing this family (17)

Citations (3)

Family Cites Families (11)

• 1995
  • 1995-06-12 JP JP7167883A patent/JP3064874B2/ja not_active Expired - Lifetime
• 1996
  • 1996-04-30 KR KR1019970709256A patent/KR100435915B1/ko not_active Expired - Lifetime
  • 1996-04-30 WO PCT/JP1996/001188 patent/WO1996042122A1/ja not_active Ceased
  • 1996-04-30 CN CNB961947268A patent/CN1153318C/zh not_active Expired - Lifetime
  • 1996-04-30 KR KR10-2002-7014534A patent/KR100435916B1/ko not_active Expired - Lifetime
  • 1996-04-30 US US08/981,067 patent/US6024606A/en not_active Expired - Lifetime
  • 1996-04-30 EP EP96912290A patent/EP0874419B1/en not_active Expired - Lifetime
  • 1996-04-30 DE DE69637525T patent/DE69637525D1/de not_active Expired - Lifetime
  • 1996-04-30 AT AT96912290T patent/ATE395733T1/de not_active IP Right Cessation
  • 1996-04-30 CN CNB021505039A patent/CN1244188C/zh not_active Expired - Lifetime
• 1999
  • 1999-12-09 US US09/457,526 patent/US6299486B1/en not_active Expired - Lifetime

Patent Citations (3)

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