KR101473266B1 - Connector - Google Patents

Abstract

The present invention provides a connector that can be detachably attached to a plug connector, installed in a receptacle connector, or capable of effectively preventing external noises from entering a tail piece of a receptacle contact or leakage of tail piece noise to the outside.
A receptacle insulator (36) having an annular outer wall protruding in one direction and an engaging recess (40) formed on the inner side of the outer peripheral wall (38) A plurality of receptacle contacts 50 supported by a corresponding receptacle insulator 50 having a piece 51 and a contact piece 53 positioned in the coupling recess and a conductive member 58 supported by the receptacle insulator A plug insulator 16 having one receptacle connector 35 and an annular engaging protrusion 18 coupled to the engaging recessed portion and a plug insulator 16 having one end mounted on the mounting surface of the second circuit board 21, And a plug connector (15) having a plurality of plug contacts (25) in contact with the outer peripheral wall and the tail piece, wherein the conductive member is provided on the outer peripheral side of the receptacle insulator with shielding portions ).

Description

Connector {Connector}

The present invention relates to a connector for connecting circuit boards.

2. Description of the Related Art Electronic apparatuses and electric apparatuses such as a desktop type personal computer (PC), a notebook type PC, and a tablet type PC generally incorporate a circuit board on which electronic parts are mounted and a separate circuit board on which other electronic parts are mounted.

The connector of Patent Document 1 is a connector for connecting two circuit boards. The connector is mounted on a circuit board (first circuit board, rigid board) or mounted on a circuit board (second circuit board, rigid board) separate from the receptacle connector And a plug connector.

The receptacle connector includes a receptacle insulator and a plurality of receptacle contacts. The receptacle insulator has an annular outer peripheral wall and a coupling recess formed on the inner side of the outer peripheral wall. The plurality of receptacle contacts are supported by the receptacle insulator in a state of being aligned in the longitudinal direction of the receptacle connector. Each of the receptacle contacts has a tail piece mounted on a circuit pattern formed on the mounting surface of the first circuit board and a contact piece located in the coupling recess of the receptacle insulator.

On the other hand, the plug connector includes a plug insulator and a plurality of plug contacts. The plug insulator has an annular engagement protrusion coupled to the engagement recess. Each plug contact has a contact piece integrally formed with the engaging projection of the plug insulator and the tail piece mounted on the circuit pattern of the mounting surface of the third circuit board.

When the engaging projections of the plug connector are engaged (connected) to the engaging recess of the receptacle connector, the contact pieces of the plug contacts are brought into contact with the contact pieces of the receptacle contacts, and the electronic parts mounted on the first circuit board and the second circuit board Are electrically connected to each other.

In today's electronic devices, the increase in the amount of information and the speeding up of the communication speed are remarkably progressing, and countermeasures against noise in the device have become an important issue. For this reason, there is a strong demand for improving the noise immunity of the connector and suppressing noise to the surroundings.

Patent Document 2 is an example of a connector to which a noise countermeasure is applied. The receptacle connector of Patent Document 2 is similar in structure to the receptacle connector of Patent Document 1. That is, a plurality of receptacle contacts are supported on the receptacle insulator, and the tail pieces of each receptacle contact are mounted on a circuit pattern formed on the mounting surface of the circuit board. Further, a conductive shell made of a metal is provided on a part of the outer peripheral wall of the receptacle insulator of the receptacle connector. A part of the conductive shell is mounted on a ground pattern (ground conductive path) formed in the mounting surface of the circuit board. Since the conductive shell is electrically connected to the circuit board in this manner, it is possible to reduce external noise from entering into the receptacle contacts (and plug contacts) of the receptacle connector and leakage of noise from the receptacle contacts (and plug contacts) to the outside.

Therefore, if the related art of Patent Document 2 is applied to Patent Document 1, external noise enters the receptacle contact (and plug contact) of the receptacle connector of Patent Document 1, and leakage of the noise of the receptacle contact (and plug contact) .

JP Patent Publication No. 2010-33714 JP Patent Publication No. 2008-16212

However, the tail piece of each receptacle contact of Patent Document 2 is positioned closer to the circuit board than the end of the conductive shell on the circuit board side when the receptacle connector is viewed from the side.

For this reason, in the connector to which the technique of Patent Document 2 is applied, the connector disclosed in Patent Document 1 can not prevent external noise from entering the tail piece of the receptacle contact and leakage of the tail piece noise to the outside.

It is an object of the present invention to provide a connector which can effectively prevent external noise from entering a tail piece of a receptacle contact having a receptacle connector detachably attached to a plug connector and leakage of a tail piece noise to the outside.

A connector according to the present invention includes: a receptacle insulator having an annular outer wall protruding in one direction and an engaging recess formed inside the outer wall; a tail piece mounted on a mounting surface of the first circuit board; A receptacle connector having a plurality of receptacle contacts supported by corresponding receptacle insulators having an engaging recess and an electrically conductive member supported by the receptacle insulator, a plug insulator having an annular engaging protrusion coupled to the engaging recess, And a plug connector having a plurality of plug contacts, one end of which is mounted on a mounting surface of the second circuit board and part of which contacts the contact piece when the engaging projection is engaged with the engaging recess, the connector comprising: Wherein the tail piece of the receptacle contact is located on the outer peripheral side of the outer peripheral wall, and the conductive member has a shield portion opposed to the outer peripheral wall and the tail piece on the outer peripheral side of the receptacle insulator, An inner circumferential side de-closure part located between the outer circumferential side-opening closure part and the outer circumferential wall, and an outer circumferential side de-closure part and the one end side ends of the inner circumferential side shield part are connected to each other and a cross- And the like.

The peripheral wall may have a contact attachment portion to which a contact provided with the receptacle contact is attached, and the ear piece connection portion may be positioned on the one-way side of the contact attachment portion and the end portion of the receptacle contact on the one-

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The present invention is characterized in that the conductive member supported by the receptacle insulator has a shielding portion opposed to the outer peripheral wall at the outer peripheral side of the receptacle insulator, and the shielding portion faces the tailpiece of the receptacle contact at the outer peripheral side, It is possible to effectively prevent an external noise from entering the tail portion of the contact or leaking the tail portion noise to the outside.

1 is an exploded perspective view of a receptacle connector and a plug connector according to an embodiment of the present invention;
2 is a bottom perspective view of the receptacle connector and the plug connector;
3 is an exploded perspective view of the receptacle connector;
4 is an exploded bottom perspective view of the receptacle connector;
5 is a perspective view showing a connection state of the receptacle connector and the connector.
6 is a plan view of a receptacle connector and a plug connector in a connected state;
7 is a cross-sectional view taken along line VII-VII of FIG. 6;
8 is a cross-sectional view taken along line VIII-VIII of FIG. 6;

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, front, rear, left and right, and up and down directions refer to arrow directions in the drawing.

The connector 10 of the present embodiment is provided with a plug connector 15 and a receptacle connector 35.

First, the detailed structure of the plug connector 15 will be described with reference to Figs. 1 and 2. Fig.

The plug connector 15 is largely composed of a plug insulator 16, a plurality of plug contacts 25 and two fixing pieces 28.

The plug insulator 16 is a plate-like member formed by injection-molding an insulating or heat-resistant synthetic resin material in the left-right direction. The plug insulator 16 has a ceiling plate portion 17 constituting the upper end portion and an engaging projection portion 18 constituted by an annular wall protruding downward from the entire periphery of the lower surface of the ceiling plate portion 17. The space formed by the ceiling plate portion 17 and the engaging projection 18 constitutes a coupling recess 19. On the front wall and the rear wall of the engaging projection 18, a plurality of contact fittings 21 having a U-shaped cross section on both the front and rear surfaces and the lower surface are formed along the lateral direction. Lower surfaces of both left and right ends of the front and rear walls of the engaging projection 18 and a lower surface of both the right and left walls are formed with an attracting surface 22 having an inclined surface extending from the upper side toward the lower side toward the outer side. Further, recessed portions 23 for depressed portions facing upward are formed on the lower surfaces of the left and right walls of the engaging projection 18, respectively. In addition, connection recesses 24 are formed in both left and right ends of the engaging projection 18, respectively.

Each plug contact 25 is formed by stamping a thin plate of a resilient copper alloy (for example, phosphor bronze, beryllium copper, or titanium copper) and a Colson copper alloy so as to have the shape shown in the figure, and the surface thereof is plated with gold, have. The plug contact 25 has a contact piece 26 extending in the vertical direction from the inner portion of the body portion having a U-shaped cross section and a tail piece 27 extending in the horizontal direction at the upper end of the outer portion of the body portion.

Each plug contact 25 is fixedly coupled to the respective contact mounting portion 21 downwardly and fixed to the plug insulator 16 (see FIGS. 1, 2, and 7).

Each fixing piece 28 is formed by stamping a metal plate in the shape shown in the figure, and a pair of tail pieces 29 are formed in the upper end portion in the horizontal direction.

Each of the fixing pieces 28 is inserted and fixed under the recessed portion 23 for each of the fixed catching portions and each tail piece 29 protrudes downward from the upper surface of the plug insulator 16.

The plug connector 15 having such a structure is mounted on a mounting surface formed on one side of the circuit board 31 (rigid board, second circuit board, see Figs. 7 and 8). Concretely, the tail piece 27 of each plug contact 25 is soldered to a circuit pattern (not shown) formed on the bottom surface of the circuit board 31, and the tail piece 29 (See Figs. 7 and 8). In the mounting of the circuit board 31, an electronic component (for example, a high-functional component Modules, semiconductors, large-capacity memory, etc.) are mounted.

Next, the detailed structure of the receptacle connector 35 will be described with reference to Figs. 1 to 4. Fig.

The receptacle connector 35 is largely composed of a receptacle insulator 36, a plurality of receptacle contacts 50, two fixing pieces 55, and two shells 58 (conductive members).

The receptacle insulator 36 is a member formed by injection-molding an insulating, heat-resistant synthetic resin material and extending in the left-right direction. The receptacle insulator 36 includes a bottom plate portion 37 constituting the lower portion, an outer peripheral wall 38 constituted by an annular wall projected upward (unidirectionally) from the entire periphery of the upper surface of the bottom plate portion 37, 37) projecting upward from the upper surface thereof. The engagement projections 39 spaced from the outer peripheral wall 38 to the inner periphery side are formed to extend linearly in the left-right direction. The space formed between the outer peripheral wall 38 and the engaging projection 39 constitutes an annular engaging recessed portion 40.

A plurality of contact mounting openings 42 formed in the vertical direction are formed on the front face of the front wall 38a of the outer peripheral wall 38 (the contact mounting portion) and the rear face of the rear wall 38b (contact mounting portion) 25). A U-shaped (continuous) shape continuous with the contact mounting opening 42 of the front wall 38a corresponding to the upper and lower surfaces of the front wall 38a, the bottom surface (upper surface) of the bottom plate portion 37 and the front surface of the engaging projection 39, And a deformation using member 43 having a cross section is described. And a U-shaped (not shown) continuous with the contact mounting hole 42 of the? Rear wall 38b corresponding to the upper and upper surfaces of the rear wall 38b and the bottom surface (upper surface) And a deforming tool 43 having a section is described (see Fig. 7).

Two portions near the left and right ends of the bottom surface of the bottom plate 37 are erected upward with the fixing piece 44. The shell mounting portion 45 is formed on the upper surface of both left and right ends of the outer peripheral wall 38 .

Further, connecting projections 46 are projected upward on both left and right ends of the lower surface of the engaging recessed portion 40.

An attracting surface 47 is formed at an upper portion of the left and right ends of the front and rear walls 38a and 38b of the outer peripheral wall 38 and at an upper portion of both the left and right walls of the outer wall 38, .

Each of the receptacle contacts 50 is formed by the same material or method as the plug contact 25 and includes a horizontal tail piece 51 and a pair of rear contact pieces 51 extending upward from the inner end of the tail piece 51 and then extending horizontally inwardly And an S-shaped resilient contact piece 53 continuing from the inner end of the fixing piece 52. The resilient contact piece 53 is a resilient contact piece.

Each of the receptacle contacts 50 is fixed to the receptacle insulator 36 by engaging the fixing pieces 52 with the contact fittings 42 from above. When the receptacle contacts 50 (fixing pieces 52) are fixed to the receptacle insulator 36 (contact fittings 42), the elastic contact pieces 53 are separated from the inner surface of the deformation use port 43, 7). Further, the tail piece 52 of the receptacle contact 50 is located on the outer peripheral side of the outer peripheral wall 38 (see Fig. 7). 2)

Each fixing piece 55 is formed by stamping a metal plate in the shape shown in the figure, and a horizontal pair of tail pieces 56 is formed at a lower end thereof.

Each of the fixing pieces 55 is inserted into and fixed from below to each of the stationary piece mounting fittings 44 and each of the tail pieces 56 protrudes downward from the lower surface of the bottom plate portion 37.

The front and rear pair of shells 58 are symmetrical with respect to each other. Each of the shells 58 is formed by press-forming a metal plate (conductive material) and has a plate-shaped outer peripheral side-closing portion 59 formed in the left-right direction. On the inner side of the outer side window-closing portion 59, the inner side window-side closure 60, which is a flat plate parallel to the outer side window-closing portion 59, is positioned. The left and right lengths of the inner circumference side trunk closure part 60 are shorter than the outer side trunk side closure part 59 and the lower part of the inner side side trunk closure part 60 is located above the lower part of the outer side side trunk closure part 59. The uneven connection portion 61 is connected to the upper portion of the inner circumferential side deck closure portion 60 and the upper side of the outer side closure portion 59. The cross-sectional shape of the eccentric connection portion 61 is a shape which is projected so as to be upwardly curved (see Figs. 7 and 8, etc.).

A tail piece 62 protrudes from the lower ends of the left and right end portions of the outer side projecting closure 59. At both left and right ends of the outer side differential shutter (59), fixing pieces (62) extending perpendicularly to the outer side side window (59) and extending inward are respectively projected.

The shell 58 on the front side is provided with the left and right fixing pieces 62 on the front side (outer side) of the outer peripheral wall 38 while positioning the outer peripheral shielding portion 59, the inner side lateral side closure 60, And is fixed to the receptacle insulator 36. The receptacle insulator 36 is formed of a metal plate. The rear shell 58 is provided with the left and right fastening pieces 63 while positioning the outer shielding portion 59, the inner circumferential side trunk closure 60 and the rigid connecting portion 61 on the rear side (outer circumferential side) And is fixed to the receptacle insulator 36 by being engaged at the upper side of the left and right shell attachment ports 45. [

When the front and rear shells 58 are fixed to the receptacle insulator 36, the front and rear outer side windowbindings 59 and the inner windowbindings 60 are located on the outer peripheral side of the front and rear surfaces of the outer peripheral wall 38, The lower end portion of the closed portion 59 is opposed to the tail piece 51 of each receptacle contact 50 in the longitudinal direction (see Figs. 7 and 8). The rigid connection portion 61 of the shell 58 and the upper end of the fixing portion 63 are located above the upper ends of the front wall 38a, the rear wall 38b and the receptacle contact 50 (see FIGS. 7 and 8) )

The receptacle connector 35 having such a structure is formed on the mounting surface of the circuit board 65 (the rigid board and the first circuit board) which is a board parallel to the circuit board 31 and is mounted on a circuit pattern (not shown) The tail piece 51 of the circuit board 50 is soldered and the tail piece 56 and the tail piece 62 are soldered to the ground pattern formed in the mounting and fixed (mounted) on the circuit board 65 8). Electronic components (for example, a CPU, a controller, a memory, and the like) different from the receptacle connector 35 are mounted on the mounting surface of the circuit board 65.

Next, a method for connecting the plug connector 15 to the receptacle connector 35 will be described.

First, as shown in Figs. 1 and 2, the receptacle connector 35 is made to face the plug connector 15 in the vertical direction while matching the front and back positions and the left and right positions with each other. Then, the plug connector 15 is moved downward so that the lower end of the plug connector 15 is brought into contact with the upper end of the receptacle insulator 36. The plug insulator 16 is guided downwardly to the receptacle insulator 36 while the respective lead-in faces 22 of the plug insulator 16 are brought into contact with the respective lead-in faces 47 of the receptacle insulator 36. [ 7 and 8). Further, the engaging recess 19 is engaged with the engaging recess 19 of the contact piece 25 of the plug contact 25 26 contact the elastic contact pieces 53 while resiliently deforming the elastic contact pieces 53 of the corresponding receptacle contacts 50 so that the plug contacts 25 and the receptacle contacts 50 are interposed between the elastic contact pieces 53, 31 and the circuit board 65 become electrically conductive. The left and right connecting projections 46 of the receptacle insulator 36 are engaged with the left and right connecting recessed portions 24 of the plug connector 15.

When the plug connector 15 is moved downward and connected to the receptacle connector 35 in a state where the plug connector 15 and the receptacle connector 35 are slightly shifted from each other, 18 or the rear shell 58 of the shell 58 on the front side contact the rigid connecting portion 61. [

However, since the front wall or the rear wall (plug connector 15) of the engaging protrusion 18 that is in contact with the rigid connecting portion 61 on the front and rear sides is guided to the inside (the receptacle insulator 36) by the corresponding elongated connecting portion 61 The plug connector 15 and the receptacle connector 35 can be easily connected to each other. Further, since the flexible connection portion 61 is formed in a complicated manner, there is less possibility that the front wall or the rear wall of the engaging projection 18 of the plug insulator 16 is damaged or damaged.

The mechanical strength of the shell 58 is improved so that the front and rear walls of the engaging projection 18 of the plug insulator 16 can be prevented from being damaged by the mechanical interference between the outer projecting closure part 59 and the inner closure part 60. [ It is less likely that the shell 58 will be broken even if it comes in contact with the eccentric connecting portion 61 of the shell 58 (or the outer circumferential side trunk closure 59 and the inner side trunk closure 60).

When an operator charged with static electricity contacts the receptacle connector 35 while grasping the plug connector 15 by using the hand and the jig, the plug connector 15 is brought close to the receptacle connector 35 and static electricity is applied to the receptacle contacts 35 And flows to the ground pattern of the circuit board 65 via the shell 58 so as to run away (run away) between the circuit board 65 Can be protected from static electricity.

The outer circumferential side trunk closure part 59 and the inner side trunk closure part 59 of the front and rear shells 58 opposed to the front wall 38a and the rear wall 38b of the outer circumferential wall 38 on the outer circumferential side (front and rear) of the receptacle insulator 36 60 are located on the outer circumferential side (front and rear) of each plug contact 25 and each receptacle contact 50. The lower portion of the outer peripheral side-closing portion 59 of the front and rear shells 58 is opposed to the tailpiece 51 of each receptacle contact 50 in the longitudinal direction. Therefore, external noise enters the respective receptacle contacts 50 (including the tail piece 51) by the front and rear shells 58, and noise of each of the receptacle contacts 50 (including the tail piece 51) Can be effectively prevented. Since the upper end of the rigid connecting portion 61 and the fixing portion 63 are located above the upper ends of the front wall 38a and the rear wall 38b and the receptacle contact 50, (Distance) between the circuit board 31 and the printed circuit board 31 becomes shorter. Therefore, it is possible to effectively prevent external noises from entering the plug contacts 25 due to the front and rear shells 58 and leakage of noise from the plug contacts 25 to the outside. As a result, the electronic components (for example, a CPU, a controller, a memory, etc.) mounted on the circuit board 65 and the electronic components (for example, Speed communication of information (a large amount of information) becomes possible.

Although the present invention has been described based on each of the above embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made to the respective embodiments.

For example, one of the outer shielding portion 59 and the inner-side side-end closure 60 may be omitted in the shell 58. [ On the other hand, the outer side trunk closure part 59 and the inner trunk side trunk closure part 60 may be provided with separate shielding parts (one or more) arranged in the front-rear direction with the outer side side trunk closure part 59 and the inner side side trunk closure part 60.

The outer peripheral side-end closing portion 59 of the shell 58 or the lower end portion of the inner side side air-closure portion 60 may be soldered to the grounding pattern of the circuit board 65. [

The fixing piece 28 may be omitted from the plug connector 15 or the fixing piece 55 may be omitted from the receptacle connector 35. [

Further, the body of the shell 58 may be made of resin and the surface of the body (resin) may be plated with a conductive material.

The circuit boards 31 and 65 may be connected to the plug connector 15 and the receptacle connector 35 in the form of a light angle RA. Further, a circuit board other than the rigid board (for example, an FPC (flexible planter circuit board)) may be connected to the plug connector 15 and the receptacle connector 35.

10 ... connector 15 ... plug connector
16 ... Plug insulator 17 ... Ceiling plate
18 ... engaging projection 19 ... engaging recess
21 ... Contact fitting 22 ... Inner face
23 ... fastening portion for fastening part 24 ... fastening part for connection
25 ... plug contact 26 ... contact piece
27 ... tail piece 28 ... fixed piece
29 ... Tail piece 31 ... Circuit board (second circuit board)
35 ... receptacle connector 36 ... receptacle insulator
37 ... bottom plate 38 ... outer wall
38a ... front wall (contact mounting portion) 38b ... rear wall (contact mounting portion)
39 ... engaging projection 40 ... engaging recess
42 ... contact fitting 43 ... deformed tip
44 ... fixed piece mounting portion 45 ... shell mounting portion
46 ... connecting protruding portion 47 ... inward surface
50 ... Receptacle contact 51 ... Tail piece
52 ... fixed piece 53 ... elastic contact piece
55 ... Fixed piece 56 ... Tail piece
58: shell (conductive member) 59: outer peripheral side-opening closing part
60: Inner inner side closing portion 61:
62 ... tail piece 63 ... fixed piece
65 ... circuit board (first circuit board)

Claims (3)

A receptacle insulator having an annular outer wall protruding in one direction and an engaging recess formed on an inner side of the outer wall; a corresponding receptacle having a tail piece mounted in the mounting surface of the first circuit board and a contact piece located in the coupling recess; A plug insulator having a plurality of receptacle contacts supported by the insulator, a receptacle connector having a conductive member supported by the receptacle insulator, a plug insulator having an annular engaging protrusion coupled to the engaging recess, And a plug connector having a plurality of plug contacts which are mounted on a mounting surface of a circuit board and a part of which comes in contact with the contact piece when the engaging projection is engaged with the engaging recess,
Wherein the tail piece of the receptacle contact is located on an outer peripheral side of the outer peripheral wall,
Wherein the conductive member has a shielding portion facing the outer peripheral wall and the tailpiece at the outer peripheral side of the receptacle insulator,
Wherein the shielding portion comprises an outer side trunk closure portion, an inner trunk side closure portion located between the outer side trunk closure portion and the outer peripheral wall, and an outer side trunk closure portion and end portions on the one side of the inner trunk side shield portion, And a flexible connection portion which is in a shape which protrudes in a complicated manner. delete The method according to claim 1,
Wherein the outer peripheral wall has a contact attachment portion to which a contact provided with the receptacle contact is attached and the ear piece connection portion is positioned on the one-sided side with respect to the one end side end portion of the contact attachment portion and the receptacle contact.

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