TWM504377U - Improved grounding structure of electrical connector - Google Patents

Description

Improved grounding structure for electrical connectors

The present invention relates to an electrical connector, and more particularly to an electrical connector having an improved grounding structure.

The Universal Serial Bus (USB) is a serial busbar standard for connecting computer systems and external devices on the market. It is also a technical specification for input and output interfaces, and is widely used in personal computers. And communication products such as mobile devices. With the development of technology, the hard system of electronic products has been continuously upgraded and upgraded. The specifications of USB 2.0 are gradually insufficient for the needs of current computer equipment. To improve the efficiency of transmission, the USB Implementers Forum is a revision of USB 2.0. Specifications and redefine the specifications of USB 3.0, and with the market demand, the next generation USB 3.1 standard specification is further developed.

USB 3.1 (SuperSpeed USB 10 Gbps) is the latest version of the USB connectivity interface based on USB 3.0. At the end of 2013, the USB 3.0 Promoter Group, the organization responsible for developing the USB 3.0 specification, announced the standard specification for the next-generation USB 3.1 interface. In April 2014, the USB Developer Forum (USB-IF), which is responsible for the USB interface specification, announced the USB 3.1 connection interface design, including Type-A, Type-B, and the newly designed Type-C. The standard Type-A is currently the most widely used interface, Type-B is mainly used in smart phones and tablets, and Type-C is mainly for thinner and thinner devices.

Any connector used as a transmission signal must overcome the problem of noise. The above-mentioned noise must be grounded by grounding, so that the signal tends to be stable and stable to deliver the correct message. Generally, the electromagnetic noise is directly transmitted through the metal casing of the connector, and then guided away from the dedicated ground wire of the information device; or through the ground wire in the signal transmission cable.

In order to solve the above-mentioned shortcomings of electromagnetic noise interference and cumbersome assembly, the patent No. M491281 of the Republic of China discloses a grounding piece structure of a connector, which comprises: a first insulating rubber seat; and a corresponding one of the first insulating rubber seats; a second insulating rubber seat; and a grounding piece interposed between the first insulating rubber seat and the second insulating rubber seat, the grounding piece further having: at least two guiding protrusions protruding from one side of the grounding piece a contact portion for contacting the ground loop; and at least two elastic grounding strap arms projecting from the other side of the grounding strip, the ends of the elastic grounding strap arms each having a first buckle portion for respectively docking The second fastening portion provided on both sides of the rubber seat inside the connector socket is fastened and fixed, and the two first fastening portions are respectively in contact with the two sides of the grounding piece provided inside the connector female seat The grounding is formed such that the connector male seat and the ground of the connector base communicate with each other to form a complete grounding system.

However, when the above-mentioned electrical connector is embedded in the socket, the grounding buckle arm on the two sides is less flexible than the plastic tongue in the connector socket, and the insulator plastic on the inner side of the socket is easily scratched. There is still room for improvement.

The purpose of the present invention is to solve the problem that the grounding buckle arm on the two sides of the conventional electrical connector is easy to scratch the insulator plastic inside the socket when the conventional electrical connector is embedded in the socket.

In order to solve the above problems, the present invention provides an improved grounding structure of an electrical connector, comprising a first insulating rubber seat, and a first insulating rubber seat is adhered to each other. a second insulating rubber seat, and a grounding strip sandwiched between the first insulating rubber seat and the second insulating rubber seat. The grounding strip has one or a plurality of guiding portions disposed on one side of the grounding strip and extending outward from the side to be connected to the grounding loop, and two are respectively disposed on two sides of the grounding strip and opposite to the guiding portion a flexible elastic arm extending in a side direction, the flexible elastic arm arm sequentially includes a connecting portion connected to the grounding piece in a direction extending therefrom, and a bent portion bent outward to form a positioning groove And a limit segment that is bent inwardly to buckle into the grounding end of the two sides of the tongue in the connector base.

Further, the flexible elastic buckle arm is integrally formed with the grounding piece and is respectively bent upward from the two sides of the grounding piece.

Further, the grounding piece is provided with two through holes, and the first insulating rubber seat and the second insulating rubber seat are respectively provided with corresponding plugs and bolt holes, and the plug passes through the through holes and The grounding piece is fixed to the pin hole to be fixed between the first insulating rubber seat and the second insulating rubber seat.

Another object of the present invention is to provide an electrical connector including a first insulating rubber seat, a second insulating rubber seat, a grounding piece, a plastic seat, and a metal outer covering portion. The first insulating rubber seat is embedded with a first conductive terminal group. The second insulating rubber seat and the first insulating rubber seat are adhered to each other, and the second conductive terminal group is embedded thereon. The grounding strip is sandwiched between the first insulating rubber seat and the second insulating rubber seat. The grounding strip has one or a plurality of guiding portions disposed on one side of the grounding strip and extending outward from the side to be connected to the grounding loop, and two are respectively disposed on two sides of the grounding strip and opposite to the guiding portion A flexible elastic arm extending in the lateral direction. The rubber seat has a passage for the first insulating socket, the second insulating socket and the grounding piece to be inserted therein. The metal outer covering portion is provided on the outer peripheral side of the rubber seat to cover the rubber seat. The flexible elastic button arm includes a connecting portion connected to the grounding piece in a direction extending toward the grounding piece, and is bent outward to form a positioning. The bent section of the slot and the limit section that is bent inwardly to buckle into the grounding end of the two sides of the tongue in the connector socket.

Further, the flexible elastic buckle arm is integrally formed with the grounding piece and is respectively bent upward from the two sides of the grounding piece.

Further, the grounding piece is provided with two through holes, and the first insulating rubber seat and the second insulating rubber seat are respectively provided with corresponding plugs and bolt holes, and the plug passes through the through holes and The grounding piece is fixed to the pin hole to be fixed between the first insulating rubber seat and the second insulating rubber seat.

Further, the upper and lower sides of the rubber seat respectively have a plurality of terminal receiving slots, and the terminal receiving slots are respectively inserted into the plurality of terminals of the first conductive terminal group and the second conductive terminal group.

Further, the upper and lower sides of the rubber seat are respectively provided with a clamping positioning piece covering the terminal receiving groove and a pressing rod disposed on one side of the terminal receiving groove, and the clamping positioning piece has a comb The toothed portion is inserted under the pressing rod, so that each of the tooth mechanisms on the comb portion is respectively tightly disposed above the terminal receiving groove to respectively fix the plurality of terminals.

Further, the side of the opening adjacent to the opening of the channel has an annular extending portion, and the ring is disposed on a circumferential side of the opening of the channel and formed between the first insulating rubber seat and the second insulating rubber seat. The limit space provided by the metal outer cover.

Therefore, this creation has the following excellent effects compared to the prior art:

1. This design uses a flexible and flexible structure to prevent the electrical connector from being scratched into the plastic insulator of the connector base when the electrical connector is embedded in the connector base.

2. The side of the creating rubber seat adjacent to the opening of the passage is provided with an annular extending portion which is arranged in the opening of the passage. The annular extending portion is a plastic extension. The material is less likely to scratch the plastic insulator of the connector base when inserted.

10‧‧‧Electrical connector

20‧‧‧Metal Overlay

21‧‧‧Replacement hole

30‧‧‧Glass

31‧‧‧Perforation

32‧‧‧ channel

33‧‧‧ Positioning block

34‧‧‧Aperture extension

35‧‧‧Terminal receiving slot

36‧‧‧Resistance rod

40‧‧‧ Grounding piece

41‧‧‧Flexible elastic arm

411‧‧‧Connection section

412‧‧‧Bend section

413‧‧‧Limited paragraph

414‧‧‧ positioning slot

42‧‧‧Guidance

43‧‧‧Tongkong

51‧‧‧First insulating rubber seat

52‧‧‧First conductive terminal set

521‧‧‧Contact end

522‧‧‧welding end

53‧‧‧plug

54‧‧‧Bolt hole

55‧‧‧ stage

56‧‧‧ positioning flange

61‧‧‧Second insulation seat

62‧‧‧Second conductive terminal set

621‧‧‧Contact end

622‧‧‧welding end

63‧‧‧plug

64‧‧‧Bolt hole

65‧‧‧ stage

70‧‧‧Clamping positioning piece

71‧‧‧ Positioning bracket

72‧‧‧ comb

73‧‧‧ buckle ring shrapnel

74‧‧‧Snap

100‧‧‧ circuit board

110‧‧‧Ground circuit

120‧‧‧Connector base

121‧‧‧Plastic tongue

122‧‧‧ Grounding terminal

123‧‧‧Slot

124‧‧‧Electrical connection埠

The first figure is a schematic view of the appearance of the creative electrical connector.

Figure 2 is a schematic exploded view of the structure of the present electrical connector.

Figure 3 is a schematic exploded view of another structure of the present electrical connector.

Figure 4 is a schematic diagram of the combination of the creative electrical connector and the connector female base.

For the better implementation of the structural features and operation methods of this creation, and with the illustrations, please provide details.

For convenience of explanation, terms used herein such as "upper side", "lower side", "left side", and "right side" are defined relative to the upper, lower, left, and right directions of the horizontal plane in the drawing.

Please refer to "Figure 1", "Figure 2" and "Figure 3" together. It is a schematic diagram of the appearance of the original electrical connector, a schematic view of the structure and a structural exploded view of another perspective. As shown in the figure: The connector 10 includes a first insulating rubber seat 51 on which a first conductive terminal group 52 is embedded, and a second insulating rubber seat 61 which is adhered to the first insulating rubber seat 51. The upper layer is embedded with a second conductive terminal group 62; a grounding piece 40 is disposed between the first insulating rubber seat 51 and the second insulating rubber seat 61, and the grounding piece 40 has one or more One side of the grounding strip 40 extends outwardly from the side to connect to the grounding portion 110 (shown in FIG. 4), and two are disposed on opposite sides of the grounding strip 40 and opposite to the guiding portion. 42 is a flexible elastic buckle arm 41 extending from the other side; a rubber seat 30 having a first insulating rubber seat 51 and the second A channel 32 into which the combination of the rubber seat 61 and the grounding piece 40 is inserted, and a metal outer covering portion 20 on the outer peripheral side of the rubber seat 30 covers the rubber seat 30. The flexible elastic latching arms 41 respectively include a connecting portion 411 connected to the grounding strip 40 in a direction extending therefrom, a bent portion 412 bent outward to form the positioning groove 414, and an inward direction. The bent portion is buckled into the limiting portion 413 of the two-side grounding end 122 of the plastic tongue 121 in the connector base 120.

The first insulating rubber seat 51, the second insulating rubber seat 61 and the grounding piece 40 are tightly coupled to each other. The grounding piece 40 is provided with two through holes 43 , and the first insulating rubber seat 51 and the second insulating rubber seat 61 are respectively provided with corresponding plugs 53 and 63 and bolt holes 54 and 64. . When assembled, the plugs 53 and 63 pass through the through hole 43 and are fitted to the opposite side of the bolt holes 54, 64, and the plugs 53, 63 and the bolt holes 54, 64 are used. The grounding piece 40 is fixed between the first insulating rubber seat 51 and the second insulating rubber seat 61, and the rod diameter of the plugs 53, 63 is slightly larger than the hole diameters 54 and 64 of the bolt holes by the mold opening design (interference) In cooperation, the first insulating rubber seat 51 and the second insulating rubber seat 61 can be closely matched with each other. The first group of conductive terminals 52 pass through the first insulating rubber seat 51, and respectively form a contact end 521 through the front side of the first insulating rubber seat 51, and form a soldering through the rear side of the first insulating rubber seat 51. End 522. Similarly, in the embodiment, the second insulating rubber seat 61 and the first insulating rubber seat 51 have the same design (only one mold needs to be opened), and the second set of conductive terminals 61 pass through the second insulation. The rubber seat 61 forms a contact end 621 through the front side of the second insulating rubber seat 61 and a soldering end 622 through the rear side of the second insulating rubber seat 61. A stage 55, 65 is respectively disposed on the first insulating rubber seat 51 and the second insulating rubber seat 61. When the first insulating rubber seat 51 and the second insulating rubber seat 61 are combined, the two stages 55 and 65 are respectively The two sides are fastened to the circuit substrate 100, whereby the soldering ends 622 of the first conductive terminal group 52 and the second conductive terminal group 62 are respectively soldered to The circuit on the circuit board 100 is soldered to the ground circuit 110 on the circuit board 100.

Each of the upper and lower sides of the rubber holder 30 has a plurality of terminal accommodating grooves 35 respectively. The terminal accommodating grooves 35 are respectively inserted into the plurality of terminals of the first conductive terminal group 52 and the second conductive terminal group 62. The upper and lower sides of the rubber seat 30 are respectively provided with a clamping positioning piece 70 covering the terminal receiving groove 35, and a pressing rod 36 disposed above the terminal receiving groove 35. The clamping positioning piece 70 is disposed on the rubber seat 30 for fixing the terminal passing through the terminal receiving groove 35. The clamping positioning piece 70 includes a positioning piece holder 71 and a comb portion 72 disposed on the positioning piece holder 71. A two-ring elastic piece 73 is disposed on each of the two sides of the positioning piece holder 71. The upper and lower sides of the plastic holder 30 are respectively provided with positioning blocks 33 for engaging the buckle elastic piece 73 on two sides. When the clamping positioning piece 70 is fixed on the rubber seat 30, the comb portion 72 on the clamping positioning piece 70 is inserted under the pressing rod 36 to make each of the comb portions 72 The tooth mechanisms are respectively tightly disposed above the terminal receiving groove 35 to respectively fix the plurality of terminals of the first conductive terminal group 52 and the second conductive terminal group 62.

The side of the opening 30 of the plastic holder 30 adjacent to the opening of the channel 32 has an annular extending portion 34 disposed on the circumferential side of the opening of the channel 32 and the first insulating rubber seat 51 and the second insulating rubber seat. 61 spaces are formed for the metal covering portion 20 to be provided. The first insulating rubber seat 51 and the second insulating rubber seat 61 are respectively provided with two positioning flanges 56, and two of the upper and lower sides of the rubber seat 30 are respectively provided through the channel 32. The through holes 31 are respectively provided on the upper and lower surfaces of the metal covering portion 20 with two positioning holes 21 corresponding to the positions of the through holes 31 for the two positioning flanges 56 to pass through and fix each other.

In order to make the flexible elastic arm 41 thinner (to make it The flexible elastic arm 41 is integrally formed with the grounding piece 40 and is bent upward from the two sides of the grounding piece 40. In a preferred embodiment, the thickness of the flexible latching arm 41 can be selected to a suitable thickness. In this range, the flexible elastic arm 41 is relatively relatively difficult to scratch the plastic area (the plastic tongue 121) in the connector base 120, and is also in compliance with the USB Implementers Forum. The standards set.

Please refer to "Figure 4" for the following. This is a schematic diagram of the combination of the original electrical connector and the connector female base. As shown in the figure, the electrical connector 10 can be inserted into the connector base 120. The connector base 120 includes a slot 123 and a plastic tab 121 disposed in the slot 123. An electrical connection 124 is disposed on the upper side and/or the lower side of the plastic tongue 121 for electrically connecting with the first conductive terminal set 52 and/or the second conductive terminal set 62 of the electrical connector 10. Two grounding ends 122 are respectively disposed on two sides of the plastic tongue 121. When the electrical connector 10 is inserted into the connector base 120, the annular extension 34 at the front end of the electrical connector 10 first penetrates into the inside of the slot 123 of the connector socket 120, since the annular extension 34 is In the plastic material, when the annular extending portion 34 is inserted, the plastic tongue 121 in the connector base 120 first contacts the annular extending portion 34 and is guided to the passage 32 in the middle of the annular extending portion 34 to make the plastic The tongue 121 is embedded. At this time, the limiting segment 413 at the front end of the two flexible elastic latch arms 41 in the channel 32 (the outer portion of the opening of the channel 32 is inclined) will guide the plastic tongue 121 to enter and contact the plastic tongue 121. The grounding terminal 122 of the side, the first conductive terminal group 52 and/or the second conductive terminal group 62 on the upper and lower sides of the channel 32 are in contact with the electrical connection 124 to complete the electrical connection.

In summary, the present invention uses a flexible elastic structure to prevent the electrical connector from being scratched to the plastic insulator of the connector base when the electrical connector is embedded in the connector base. In addition, the side of the artificial rubber seat adjacent to the opening of the channel is provided with an annular extending portion which is arranged on the opening of the channel. Since the annular extending portion is an extension of the rubber seat, it is also a plastic material, and is less embedded. It is easy to scratch the plastic insulator of the connector base.

However, the above is only the preferred embodiment of the present invention. When it is not possible to limit the scope of the creation of the creation, that is, the equal changes and modifications made by the scope of the patent application of this creation should still belong to the creation. The patent covers the scope.

10‧‧‧Electrical connector

20‧‧‧Metal Overlay

21‧‧‧Replacement hole

30‧‧‧Glass

31‧‧‧Perforation

32‧‧‧ channel

33‧‧‧ Positioning block

34‧‧‧Aperture extension

35‧‧‧Terminal receiving slot

36‧‧‧Resistance rod

40‧‧‧ Grounding piece

41‧‧‧Flexible elastic arm

411‧‧‧Connection section

412‧‧‧Bend section

413‧‧‧Limited paragraph

414‧‧‧ positioning slot

42‧‧‧Guidance

43‧‧‧Tongkong

51‧‧‧First insulating rubber seat

52‧‧‧First conductive terminal set

521‧‧‧Contact end

522‧‧‧welding end

55‧‧‧ stage

56‧‧‧ positioning flange

61‧‧‧Second insulation seat

62‧‧‧Second conductive terminal set

621‧‧‧Contact end

622‧‧‧welding end

63‧‧‧plug

64‧‧‧Bolt hole

65‧‧‧ stage

70‧‧‧Clamping positioning piece

71‧‧‧ Positioning bracket

72‧‧‧ comb

73‧‧‧ buckle ring shrapnel

74‧‧‧Snap

Claims (10)

An improved grounding structure of an electrical connector includes: a first insulating rubber seat; a second insulating rubber seat bonded to the first insulating rubber seat; and a grounding piece, the clip is placed on the first Between an insulating rubber seat and the second insulating rubber seat, the grounding piece has one or a plurality of guiding portions disposed on one side of the grounding piece and extending outward from the side to be connected to the grounding circuit, and two separate sets a flexible elastic latching arm extending on two sides of the grounding strip and extending in a direction opposite to the other side of the guiding portion, wherein the flexible elastic latching arm sequentially includes a connection connected to the grounding strip in a direction extending therefrom The segment is bent outwardly to form a bent portion of the positioning groove, and a limiting portion that is bent inwardly to buckle into the grounding end of the tongue on the side of the connector. The improved grounding structure of the electrical connector of claim 1, wherein the flexible elastic arm is integrally formed with the grounding piece and is respectively bent upward from the two sides of the grounding piece. The improved grounding structure of the electrical connector of claim 1, wherein the grounding piece is provided with two through holes, and the first insulating rubber seat and the second insulating rubber seat are respectively provided with each other. Corresponding plugs and bolt holes, the plugs pass through the through holes and are engaged with the bolt holes to fix the grounding piece between the first insulating rubber seat and the second insulating rubber seat. An electrical connector includes: a first insulating rubber seat on which a first conductive terminal group is embedded; and a second insulating rubber seat which is attached to the first insulating rubber seat and is attached thereto Inserting a second conductive terminal group; a grounding piece is disposed between the first insulating rubber seat and the second insulating rubber seat, The grounding strip has one or a plurality of guiding portions disposed on one side of the grounding strip and extending outward from the side to be connected to a ground loop, and two are respectively disposed on two sides of the grounding strip and opposite to the guiding portion a flexible elastic arm extending in a side direction; a rubber seat having a passage for the first insulating socket, the second insulating socket and the grounding piece inserted therein; and a metal outer covering portion The outer peripheral side of the rubber seat covers the rubber seat; wherein the flexible elastic buckle arm sequentially includes a connecting portion connected to the grounding piece in a direction extending therefrom, and an outwardly bent portion to form a positioning groove. The bending section and the limiting section are bent inwardly to buckle into the grounding end of the two sides of the tongue in the connector base. The electrical connector of claim 4, wherein the flexible elastic arm is integrally formed with the grounding piece and is respectively bent upward from the two sides of the grounding piece. The electrical connector of claim 4, wherein the grounding piece is provided with two through holes, and the first insulating rubber seat and the second insulating rubber seat are respectively provided with corresponding plugs and And a plug hole that passes through the through hole and is engaged with the bolt hole to fix the grounding piece between the first insulating rubber seat and the second insulating rubber seat. The electrical connector of claim 4, wherein the upper and lower sides of the rubber seat respectively have a plurality of terminal receiving slots, wherein the terminal receiving slots are respectively provided for the first conductive terminal group and the second conductive terminal The plurality of terminals of the group are respectively inserted. The electrical connector of claim 7, wherein the upper and lower sides of the rubber seat are respectively provided with a clamping positioning piece covering the terminal receiving groove and a pressing force disposed on a side of the terminal receiving groove. a rod, the clamping positioning piece has a comb portion inserted under the pressing rod, so that each tooth mechanism on the comb portion is tightly fitted above the terminal receiving groove to respectively fix the rod Multiple terminals. The electrical connector of claim 4, wherein the side of the rubber seat adjacent to the opening of the channel has an annular extension disposed on a circumferential side of the opening of the channel and insulated from the first A limiting space for the metal covering portion is formed between the rubber seat and the second insulating rubber seat. The improved grounding structure of the electrical connector of claim 1 or 4, wherein the thickness of the flexible elastic arm is selected to be an appropriate thickness.