WO2017088317A1

WO2017088317A1 - Serial bus connector

Info

Publication number: WO2017088317A1
Application number: PCT/CN2016/075749
Authority: WO
Inventors: 高清龙
Original assignee: 深圳市鑫德胜电子科技有限公司; 高清龙
Priority date: 2015-11-27
Filing date: 2016-03-07
Publication date: 2017-06-01
Also published as: TWM540412U; JP3217610U

Abstract

A serial bus connector, comprising a fixed portion (120, 180) fixed in a metal case (100), and further comprising first and second terminal groups (140, 200) provided so as to mirror each other across an axis of the metal case, part of the first and second terminal groups being fixed at the fixed portion. The fixed portion is formed with a transmission channel in a direction coaxial with the metal case. In the transmission channel is fixed an elastic frame (160) and a circuit board (220). The elastic frame is connected to an extension portion coaxial with the metal case, and the first and second terminal groups. The elastic frame is used to bear a main deforming elastic force upon insertion, thereby reducing a force load on the terminal groups, ensuring a reliable return to position upon insertion or removal, and moreover avoiding short circuits and false connections upon insertion. Further provided is a reliable conductor connection technique that avoids welding, decreasing manufacturing and environmental costs. In addition, the centrally symmetrical joining mode of the transmission channel remarkably simplifies production processes.

Description

Serial bus connector

The present invention is filed by the applicant, the filing date of which is the priority of the application Serial No. CN201520966377.2, entitled "A Serial Bus Connector". It is also claimed by the applicant that the application date is January 15, 2016, and the application number is CN201620036924.1, the priority of which is the "metal casing of a serial bus connector". The entire contents of the above application are hereby incorporated by reference in its entirety.

Technical field

The utility model designs a connector, in particular to a connector for high-speed electric signals.

Background technique

In the prior art, the universal serial bus connector has different specifications. For the micro type connector, due to the limitation of the size specification, the front and back sides of the connector are mutually inserted, and the front and reverse terminal blocks of the socket are ensured to be stable and stable. Under the premise, the physical structure of the positive and negative terminal blocks of the plug is more stringent.

How to ensure that the terminal group of the other direction of the plug is effectively connected to the socket, and that the terminal group of the other direction is not short-circuited by the elastic bending, and the good recovery elasticity of the elastic bending is ensured, thereby ensuring that the plug is not lowered. The overall stability and avoiding the substantial increase in manufacturing costs are not effectively solved by the prior art.

Utility model content

The purpose of the utility model is to provide a serial bus connector, which solves the technical problem that the existing connector cannot effectively ensure the connection reliability when the connection is stressed.

The serial bus connector of the present invention comprises a fixing portion fixed in the metal casing, and further comprising a first terminal group and a second terminal group mirrored on both sides of the axis of the metal casing, the first terminal group and the second terminal group Partially fixed to the fixing portion, the fixing portion forms a transmission passage in the same axial direction as the metal casing, wherein the transmission passage fixes the elastic frame and the circuit board, and the elastic frame and the metal casing have the same axial extension and the first The terminal group and the second terminal group are coupled to each other.

The conductive terminals of the first terminal group and the second terminal group are symmetrically formed to form curved convex portions protruding toward the transmission channel, and the symmetric curved convex portions are clamped and connected to the corresponding connection terminals of the circuit board.

The fixing portion includes an upper fixing portion and a lower fixing portion, wherein the upper terminal group is partially fixed in the upper fixing portion, and the upper terminal group is fixed in an axial direction of the end portion of the upper fixing portion and extends in the axial direction. The lower end surface of the upper fixing portion protrudes The other end portion of the terminal group protrudes from the left end surface of the upper fixing portion along the axial direction of the metal casing;

Another set of identical upper terminal sets and upper fixing portions are rotated 180 degrees around the axis of the metal casing in a center-symmetrical manner with respect to the axis of the metal casing to form a lower fixing portion and a lower terminal group.

The upper fixing portion comprises a fixing plate, an edge fitting column and an end positioning column, the end positioning column is a transverse rectangular column, the edge fitting column is a transverse rectangular column, and the left and right end faces of the edge fitting column The spacing is greater than the spacing between the left and right end faces of the fixed plate, the spacing between the left and right end faces of the fixing plate is greater than the spacing between the left and right end faces of the end positioning posts, the spacing between the upper and lower end faces of the end positioning posts is greater than the spacing between the upper and lower end faces of the edge fitting columns, and the upper and lower end faces of the edge fitting columns The spacing is greater than the spacing between the upper and lower end faces of the fixed plate;

The rear end surface of the fixing plate is fixed on the front end surface of the edge fitting column, the right end surface of the fixing plate is flush with the right end surface of the edge fitting column, and the right end end of the edge fitting column is fixedly embedded in the middle of the front end surface of the end positioning column. The right end surface of the edge fitting column is flush with the right end surface of the end positioning column;

A rectangular through hole penetrating the upper and lower end faces is formed in the fixing plate as a clamping through hole.

The upper terminal group penetrates the sidewall of the through hole through the central portion of the right end portion of the fixed plate in the axial direction of the metal casing, and the conductive terminal portion of the upper terminal group protrudes from the lower end of the left end surface of the fixed plate;

In the clamp through hole, the conductive terminals in the upper terminal group form a curved convex portion downward in the axial direction of the clamp through hole, and the top of the curved convex portion protrudes to fix the lower end surface of the flat plate.

The conductive terminal head is located between the edge fitting columns of the upper and lower fixing portions, and the conductive terminal head is gradually bent upward from the right to the left, and is smoothly bent downward at the end of the conductive terminal head.

The elastic frame comprises a planar body, one end of the planar body, two sides extending in the direction, forming a symmetrical facade body, the single facade body being symmetrical based on the plane body, and the outer spacing of the facade body is smaller than the corresponding position of the other end of the plane body The pitch, the upper end surface of the planar body forms a drop, and the upper upper end surface is on the side of the main body of the façade; parallel to the extending direction, the lower upper end faces the higher upper end surface to open a pre-embedded groove corresponding to the terminal group; The lower end surface is symmetric in shape; the pre-embedded recess in the upper and lower end faces is coupled to the first terminal set and the second terminal set.

Opening a first pre-embedded groove group corresponding to the conductive terminal of the upper terminal group from a lower upper end surface of the elastic planar body toward a higher upper end surface, the groove depth of the first pre-embedded groove group, according to the conductive terminal head The extending direction of the portion is gradually deepened, and is matched with the conductive terminal head of the upper terminal group;

A second pre-embedded groove set symmetrically disposed on the lower end surface of the elastic planar body is adapted to the conductive terminal head of the lower terminal set.

The planar body comprises an elastic planar body and two planar body complementary bodies, the facade body comprises two elastic facade bodies, the elastic plane body is a flat plate, the elastic facade body is a flat plate, and the planar body complementary body is a flat plate. The spacing between the left and right end faces of the elastic planar body is greater than the spacing between the left and right end faces of the planar body complementary body, and the spacing between the left and right end faces of the planar body complementary body is greater than the spacing between the left and right end faces of the elastic facade body, and the spacing between the upper and lower end faces of the elastic facade body is greater than the upper and lower surfaces of the elastic planar body The spacing of the end faces, the spacing between the upper and lower end faces of the elastic planar body is equal to the spacing between the upper and lower end faces of the complementary body of the planar body;

The left end portion of the rear end surface of the elastic planar body is fixedly embedded in the middle of the front end surface of the elastic façade main body, and the left end surface of the elastic façade main body is flush with the left end surface of the elastic plane main body, and the rear end surface of the elastic façade main body and the rear of the elastic flat main body The end surface is flush, and the other elastic façade body is symmetrically disposed at the left end portion of the front end surface of the elastic plane body; the front end surface of a planar body replenishing body is fixed at the right end portion of the rear end surface of the elastic plane main body, and the right end surface of the plane main body replenishing body and the elasticity The right end surface of the planar body is flush, and the other planar body complementary body is symmetrically disposed at the right end of the front end face of the elastic planar body.

The rear end of the edge fitting post of the upper fixing portion faces the rear side to form an outwardly bent structure, and the middle portions of the front and rear side walls of the metal casing form an outwardly bent structure from the inner cavity to the outer side.

The first elastic piece facing the outer side is symmetrically disposed on the upper side wall and the lower side wall of the insertion end of the metal casing, and two ribs parallel to the axis of the metal casing are disposed between the two first elastic pieces of the same side wall, and the rib is provided The length of the extension is greater than the length of the first elastic piece. On the upper side wall and the lower side wall, each of the stress blind holes is disposed, and the stress blind hole is located between the two convex ribs of the same side wall, and the contour of the stress blind hole is a corner. A smoothly transitioning rectangle, the long side of the contour of the stress blind hole is perpendicular to the direction in which the rib extends.

The stress blind holes are symmetrically disposed on the outer sides of the upper side wall and the lower side wall, and the convex ribs on the outer side of the same side wall form a reinforcing structure in one layer;

Alternatively, the stress blind holes are symmetrically disposed on the inner side of the upper side wall and the lower side wall, and the convex ribs on the outer side of the same side wall form a reinforcing structure in two layers;

Alternatively, on the upper side wall or the lower side wall, corresponding stress blind holes are simultaneously provided on the inner side and the outer side.

The stress blind holes are replaced by through holes of corresponding shapes.

The serial bus connector of the utility model utilizes the elastic frame to carry the main deformation elastic force during the plugging, thereby reducing the stress load of the terminal group and ensuring reliable returning when the plug is detached. At the same time, it avoids the short circuit virtual connection that may occur when plugging. Provides a reliable way to avoid soldering conductor connections, reducing manufacturing and environmental costs. The central symmetrical combination of the conduction channels is outstanding for simplifying the production process. Further, a reliable structure of the metal casing is provided, so that the sidewall is less likely to be deformed, and the set structural precision is effectively maintained.

DRAWINGS

1 is a schematic view showing the axial assembly of the serial bus connector of the present invention;

Figure 2 is a front elevational view of the metal casing of the serial bus connector of the present invention;

Figure 3 is a left side view of the metal casing of the serial bus connector of the present invention;

4 is a front view showing the assembly of the upper fixing portion and the upper terminal group of the serial bus connector of the present invention;

Figure 5 is a plan view showing the assembly of the upper fixing portion and the upper terminal group of the serial bus connector of the present invention;

Figure 6 is a left side view of the assembly of the upper fixing portion and the upper terminal set of the serial bus connector of the present invention;

Figure 7 is a top plan view of the elastic frame of the serial bus connector of the present invention;

Figure 8 is a front elevational view of the elastic frame of the serial bus connector of the present invention;

Figure 9 is a left side view of the elastic frame of the serial bus connector of the present invention;

Figure 10 is a right side view of the elastic frame of the serial bus connector of the present invention;

Figure 11 is a top plan view of the circuit board of the serial bus connector of the present invention;

Figure 12 is a front elevational view showing the assembly of the upper terminal set, the elastic frame, the circuit board and the lower terminal set of the serial bus connector of the present invention;

Figure 13 is a front cross-sectional view of the metal casing of the serial bus connector of the present invention;

Figure 14 is a side view of the metal housing of the serial bus connector of the present invention taken along the axis.

detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, the serial bus connector of the present embodiment is assembled by sequentially assembling the metal casing 100, the upper fixing portion 120, the upper terminal group 140, the elastic frame 160, the lower fixing portion 180, the lower terminal group 200, and the circuit board. In the composition of 220, the upper fixing portion 120 is electrically insulated from the lower fixing portion. The upper fixing portion 120 and the lower fixing portion 180 are symmetrical with respect to the axis of the metal casing 100 to form a conduction channel (the main body of the conduction channel is a straight pipe), and the conduction channel is along the metal. The outer casing 100 is axially fixed in the metal outer casing 100. The upper terminal group 140 and the lower terminal group 200 extend along both sides of the axis of the metal casing 100 and are mirror-imaged. The upper terminal group 140 and the lower terminal group 200 are partially fixed in the upper fixing portion 120 and the lower fixing portion 180, respectively. The elastic frame 160 and the circuit board 220 are axially fixed in the conductive passage along the metal casing 100. The elastic frame 160 protrudes from one end of the conductive passage to form a protruding portion thereof, and the circuit board 220 protrudes from the other end of the conductive passage to form an extension thereof. unit.

The upper terminal set 140 and the lower terminal set 200 extend to two sides of the protruding portion of the elastic frame 160, and are matched with the corresponding slots or holes of the protruding portion surface of the elastic frame 160 to form an elastic conductive structure, the upper terminal set 140 and the lower terminal The set 200 protrudes from the opposite inner walls of the conductive channels and clamps the respective conductive portions of the circuit board 220 to form an electrical signal conducting structure.

The elastic frame 160, the circuit board 220, the upper fixing portion 120 and the lower fixing portion 180 are integrally formed of a plastic material, and the elastic frame 160 and the circuit board 220 are provided with positioning through holes, and the opposite surfaces of the upper fixing portion 120 and the lower fixing portion 180 are formed. A positioning hole corresponding to the positioning through hole and a positioning pin are disposed, and positioning pins corresponding to the positioning holes on the metal casing 100 are disposed on the outer surface of the upper fixing portion 120 and the lower fixing portion 180. On the side wall of the metal casing 100, ribs and elastic pieces which establish a stable mating connection with the opposite end connectors are symmetrically disposed on both sides of the axis.

As shown in FIG. 2, the metal casing 100 is a rectangular straight pipe. At the left end portion (ie, the insertion end) of the metal casing, the first elastic piece 101 facing the outer side is symmetrically disposed on the upper side wall and the lower side wall of the metal casing. Specifically, it is disposed at the front end and the rear end of the upper side wall, and the front end and the rear end of the lower side wall. The first elastic piece 101 is made of a partial casing of the metal casing 100 from the inner cavity of the metal casing 100. Formed toward the outside, the first elastic piece 101 is a plate material having a convex portion formed in the middle portion, and the convex portion is separated from the metal casing 100, and both ends thereof are connected to the metal casing 100.

Between the two first elastic pieces 101 of the same side wall, two ribs 102 are arranged parallel to the axis of the metal casing 100, and the extending length of the ribs 102 is greater than the length of the first elastic piece 101.

At the right end of the metal casing 100 (ie, the output end), a pair of first positioning plates 103 parallel to the axis of the metal casing 100 are disposed in the middle of the upper end of the metal casing and the middle of the right end of the lower casing, at each of the first positioning plates. Positioning holes (not shown in the drawing) which are arranged perpendicular to the axis of the metal casing 100 are provided on the 103.

As shown in FIG. 2 and FIG. 3, the middle portion of the front side wall of the metal casing 100 forms an outwardly bent structure from the inner cavity to the outer side, forming a bent ridge line 104 from the left end to the right end (while forming a bend from the left end to the right end) The transition surface), the front side wall of the upper portion of the curved ridge line 104 is symmetrical with the lower front side wall. The rear side wall of the metal casing 100 forms an outwardly bent structure that is symmetrical with the front side wall.

As shown in FIG. 4, FIG. 5 and FIG. 6, the upper terminal group 140 is partially fixed in the upper fixing portion 120, and the upper terminal group 140 is fixed to the upper end of the upper fixing portion 120 to extend in the axial direction of the metal casing 100. The lower end surface of the upper fixing portion 120 protrudes as a part of the electrical signal conducting structure, and the other end portion of the upper terminal group 140 protrudes from the left end surface of the upper fixing portion 120 in the axial direction of the metal casing 100 as an elastic conductive structure. a part of.

As shown in FIG. 4 and FIG. 5, the upper fixing portion 120 includes a fixing plate 121, an edge fitting column 122 and an end positioning post 123. The end positioning post 123 is a transverse rectangular column, and the edge fitting column 122 is a The spacing between the left and right end faces of the edge fitting column 122 is greater than the spacing between the left and right end faces of the fixing plate 121. The spacing between the left and right end faces of the fixing plate 121 is greater than the spacing between the left and right end faces of the end positioning posts 123, and the upper and lower end faces of the end positioning posts 123. The pitch of the upper and lower end faces of the edge fitting column 122 is greater than the pitch of the upper and lower end faces of the fixed plate 121.

The rear end surface of the fixing plate 121 is fixed to the front end surface of the edge fitting column 122, the right end surface of the fixing plate 121 is flush with the right end surface of the edge fitting column 122, and the rear end end of the edge fitting column 122 is fixedly embedded and positioned at the end. In the middle of the front end face of the post 123, the right end face of the edge fitting post 122 is flush with the right end face of the end positioning post 123.

A rectangular through hole penetrating the upper and lower end faces is formed in the fixing plate 121 as a clamping through hole 124, and two positioning pins that are matched with the positioning holes of the first positioning plate 103 of the metal casing are disposed on the upper end surface of the right side of the clamping through hole 124. .

On the lower end surface of the fixing plate 121, on the axial side of the metal casing 100, two positioning holes (not shown in the drawing) on both sides of the clamping through hole 124 are disposed in parallel, on the other side of the axis of the metal casing 100. Two positioning pins 125 are provided at corresponding positions.

As shown in FIG. 4 and FIG. 5, the upper terminal group 140 is inserted in the axial direction of the metal casing 100 from the central portion of the right end portion of the fixed plate 121 to the left side of the side wall of the through hole 124, and the conductive terminal portion 126 of the upper terminal group 140. It protrudes from the lower end of the left end surface of the fixed plate 121.

In the clamp through hole 124, the conductive terminals in the upper terminal group 140 form a downward bend along the axial direction of the clamp through hole 124. The curved convex portion 127, the top of the curved convex portion 127 protrudes to fix the lower end surface of the flat plate 121 (into the transport passage).

The protruding conductive terminal head 126 does not exceed the left end surface of the edge fitting column 122, and the conductive terminal head 126 is gradually bent upward from the right to the left, and is smoothly bent downward at the end of the conductive terminal head 126, and the conductive terminal head The end of the portion 126 is lower than the lower end surface of the fixed plate 121.

As shown in FIG. 5 and FIG. 6 , the rear end of the edge fitting post 122 of the upper fixing portion 120 faces the rear side to form an outwardly bent structure, and the bent ridge line 104 from the left end to the right end is formed (simultaneously formed from the left end to the right end). The bent transition surface), the rear end surface of the upper portion of the curved ridge line 104 is symmetrical with the lower rear end surface. The outwardly bent structure of the upper fixing portion 120 is adapted to the outwardly bent structure of the metal casing 100.

Another set of upper fixing portion 120 and upper terminal group 140 are employed as the lower fixing portion 180 and the lower terminal group 200, the group upper fixing portion 120 and the upper terminal group 140 are centered in a symmetrical manner with respect to the axis of the metal casing 100 The axis of the metal casing 100 is rotated by 180 degrees, that is, the lower fixing portion 180 and the lower terminal group 200 are formed. The lower fixing portion 180 and the upper fixing portion 120 form a conduction path coaxial with the metal casing 100.

As shown in conjunction with Figures 7, 8, 9, and 10, the resilient frame 160 is an interlaced solid structure. At one end of a planar body, both sides of the extending direction form a symmetrical façade body, the single façade body is symmetrical based on the plane body, the outer spacing of the façade body is smaller than the corresponding spacing of the other end of the plane body, and the upper end surface of the plane body forms a drop The upper upper end face is on the side of the main body of the façade. Parallel to the extending direction, a pre-embedded recess corresponding to the terminal group is opened from the lower upper end toward the upper upper end surface. The upper and lower end faces of the planar body are symmetrical in shape. The pre-embedded recesses in the upper and lower end faces are coupled to the first terminal set and the second terminal set. The lower upper end surface of the planar body defines a positioning through hole.

As shown in FIGS. 7 and 8, the planar body of the elastic frame 160 includes an elastic planar body 161 and two planar body complementary bodies 163. The facade body includes two elastic facade bodies 162, and the elastic plane body 161 has an upper and lower end faces. A flat plate having a remarkable feature (significant surface area), the elastic façade body 162 is a flat plate having a front and rear end faces which are distinctive features (significant surface area), and the flat body complementary body 163 is a flat plate having a front and rear end faces which are distinctive features (significant surface area), and an elastic flat body The distance between the left and right end faces of the plane main body replenishing body 163 is larger than the distance between the left and right end faces of the elastic main body 162. The distance between the upper and lower end faces of the elastic façade main body 162 is larger than that of the elastic flat body 161. The pitch of the upper and lower end faces, the pitch of the upper and lower end faces of the elastic planar body 161 is equal to the pitch of the upper and lower end faces of the planar body complementary body 163.

The left end portion of the rear end surface of the elastic flat body 161 is fixedly fitted into the middle of the front end surface of the elastic fascia main body 162, the left end surface of the elastic façade main body 162 is flush with the left end surface of the elastic flat body 161, and the rear end surface of the elastic façade main body 162 is The rear end surface of the elastic flat body 161 is flush, and the other elastic facade main body 162 is symmetrically disposed at the left end portion of the front end surface of the elastic flat body 161. The front end surface of one planar body replenishing body 163 is fixed to the right end portion of the rear end surface of the elastic plane main body 161, the right end surface of the planar main body replenishing body 163 is flush with the right end surface of the elastic plane main body 161, and the other planar main body replenishing body 163 It is symmetrically disposed at the right end portion of the front end surface of the elastic plane body 161. The sum of the front and rear end face spacings of the two planar body complementary bodies 163 and the front and rear end face spacings of the elastic planar body 161 is equal to the width of the inner cavity of the conductive channel.

As shown in FIGS. 7 and 10, in the extending direction of the planar body, the upper end surface of the elastic planar body 161 has a stepped upper upper end surface and a lower upper end surface, which are higher between the two elastic façade bodies 162. The upper end surface is higher than the lower upper end surface of the right side of the two elastic facade bodies 162. A first pre-embedded groove group 172 corresponding to the conductive terminal of the upper terminal group 140 is opened from the lower upper end of the elastic flat body 161 toward the upper upper end surface. The lower end surface of the elastic planar body 161 is symmetrical with the upper end surface structure.

On the lower upper end surface of the elastic flat body 161, two positioning through holes 171 penetrating through the upper and lower end faces are formed. The positioning through holes 171 are arranged in a direction perpendicular to the axis of the metal casing 100 and symmetrically located on both sides of the axis of the metal casing 100.

The groove depth of the first pre-embedded groove group 172 is gradually deepened in the protruding direction of the conductive terminal portion 126 (of the upper terminal group 140), and is fitted with the conductive terminal portion 126 (the end of the conductive terminal portion 126) The smooth bend portion exposes the pre-embedded groove).

The second pre-embedded groove group 173 symmetrically formed on the lower end surface of the elastic plane main body 161 is matched and matched with the conductive terminal head portion 126 of the lower terminal group 200 (the rounded bent portion of the end portion of the conductive terminal portion 126 is exposed. Buried groove).

As shown in FIGS. 7 and 8, the right end surface 174 of the elastic facade main body 162 forms a smooth transition surface 174 with the upper end surface or the lower end surface of the connected elastic plane main body 161.

As shown in FIGS. 7 and 9, between the front end surface of the front elastic façade main body 162 and the rear end surface of the elastic fascia main body 162, the end faces are provided at the joints of the elastic flat main body 161 and the left end surface of the elastic façade main body 162. Chamfer 175. For example, a chamfer 175 is provided at a joint between the left end surface of the elastic flat body 161 and the upper and lower end faces, and a chamfer 175 is provided at a joint between the left end surface of the elastic façade body 162 and the upper and lower end faces.

As shown in FIG. 11, the circuit board 220 is a rectangular flat plate. The distance between the front and rear end faces of the left portion of the circuit board 220 is equal to the inner cavity width of the conductive channel, and the front and rear end faces of the right portion of the circuit board 220 are larger than the front and rear end faces of the left portion. In the left part of the circuit board 220, the upper and lower end faces are symmetrically arranged with the connection terminal group 221 corresponding to the upper and lower terminal groups, and the upper and lower end faces of the circuit board 220 are symmetrically arranged with the pads corresponding to the upper and lower terminal groups. The group 222, the connection terminal 221 and the pad 222 are electrically connected within the circuit board 220. Two positioning through holes 171 penetrating the upper and lower end faces are formed between the connecting terminal 221 and the pad 222. The positioning through holes 171 are vertically aligned with the axis of the metal casing 100, and are symmetrically located on both sides of the axis of the metal casing 100.

As shown in FIG. 12, in the conductive passage formed by the lower fixing portion 180 and the upper fixing portion 120, the positioning pin 125 of one side (the lower fixing portion 180 or the upper fixing portion 120) passes through the corresponding positioning on the elastic frame 160 and the circuit board 220. The through hole 171 is fixed in a corresponding positioning hole of the other side (the upper fixing portion 120 or the lower fixing portion 180) to fix the elastic frame 160 and the circuit board 220 in the conduction path. At the same time, the upper terminal group 140 fixed in the upper fixing portion 120 and the lower fixing portion 180 and the curved convex portion 127 of the lower terminal group 200 (after a slight elastic deformation due to the pressing) are tightly pressed and attached to the circuit board 220 On the connection terminal group 221, a symmetrical curved convex portion 127 is formed to sandwich the circuit board 220, so that the upper terminal group 140 and the lower terminal group 200 are reliably in communication with subsequent circuits. The conductive terminal heads 126 of the upper terminal set 140 and the lower terminal set 200 are placed in an elastic frame In the corresponding pre-embedded groove groups on both sides of the 160, the downwardly rounded end of the conductive terminal head 126 is ensured to fit in the groove. The resilient frame 160 and the circuit board 220 are spaced apart.

As shown in FIGS. 2 and 13, the pitch of the two ribs 102 on the same side wall is greater than the pitch of the ribs 102 and the adjacent first elastic pieces 101. The convex portion of the first elastic piece 101 is higher than the convex rib 102, and the convex portion of the first elastic piece 101 is located at the middle in the extending direction of the convex rib 102.

As shown in FIG. 13 and FIG. 14, on the upper side wall and the lower side wall of the metal casing, one stress blind hole 105 (or a counterbore) is disposed, and the stress blind hole 105 is located on two ribs on the same side wall. Between 102, the contour of the stress blind hole 105 is a rectangle whose angle is smoothly transitioned, and the long side of the contour of the stress blind hole 105 is perpendicular to the extending direction of the rib 102.

When the stress blind holes 105 are symmetrically disposed on the outer sides of the upper and lower side walls, the ribs 102 on the outer side of the same side wall form a reinforcing structure in one layer.

When the stress blind holes 105 are symmetrically disposed inside the upper side wall and the lower side wall, the ribs 102 on the outer side of the same side wall form a reinforcing structure in two levels.

It is also possible to provide corresponding stress blind holes on the upper side wall or the lower side wall at the inner side and the outer side to form a reinforcing structure.

In practical applications, when the serial bus connector of the embodiment is inserted into the corresponding socket, the terminal group on one side is transmitted to the elastic frame, and the elastic frame drives the terminal group on the other side to the metal casing along the vertical component of the force direction. Bending, protected by the elastic frame, the terminal set on the other side will not be short-circuited or connected to the metal casing. When it is separated from the corresponding socket, the elastic frame is used to ensure the recovery is in place, so that the force of the terminal groups on both sides is gentle. The reasonable structure of the elastic frame can ensure that the elastic force change in the elastic deformation is more in line with the acceptance process of the connector insertion and release process, and improve the normal service life of the connector. The one-piece plastic body material guarantees the elastic characteristics of the elastic frame.

By the bending convex portion 127 of each terminal group being tightly pressed and attached to the connection terminal group 221 of the circuit board 220, the solderless circuit connection can be realized, so that the assembly of the electrical signal conducting structure can be completed during the assembly process. The production efficiency is improved, so that the complete production process of the connector can be quickly passed through the mold and the jig of the integrated molding process, thereby avoiding possible environmental pollution of the welding.

In practical applications, the two ribs 102 on the same side wall can overcome the metal casing sway caused by the external force in the axial direction, and improve the strength of the metal casing in the axial direction. In combination with the stress blind hole 105 on the same side wall, the metal casing twisting caused by the external force around the axial direction can be overcome, and the torsional strength of the metal casing can be improved.

Further, the stress blind hole 105 is disposed between the two ribs 102 of the same side wall, and the bending of the edge of the rib 102 and the side wall is bent to form a large internal stress accumulation, and the linear stress concentration is formed along the joint direction. Area. The bending of the edge of the stress blind hole 105 and the joint of the side wall also forms a large internal stress accumulation, and a plurality of linear stress accumulation regions are formed along the direction of the joint. These linear stress accumulation regions form a mesh-like stress enhancement on the sidewall surface. Overcoming such stress enhancement requires the application of a larger external force, which makes the sidewall less susceptible to deformation and effectively maintains the set structural accuracy.

Further, the linear stress accumulation region forms a single-layer mesh-like reinforcement structure or a parallel-level mesh-like reinforcement structure according to the difference of the inner side or the outer side of the sidewall of the stress blind hole 105. Class-like meshing of parallel layers can further increase stress enhancement by utilizing the reverse force of stresses in different layers.

Further, the stress blind hole is replaced by a correspondingly shaped through hole, and the stress enhancement is maximized under the condition of ensuring compatibility with electromagnetic interference.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can easily think of within the technical scope disclosed by the present invention. Changes or substitutions are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Industrial applicability

The serial bus connector of the utility model is suitable for industrial production, can be applied to a matched and existing connector socket, improves the stability of the connection structure during the connection process, improves the signal stability during the connection process, and prolongs the Service life.

Claims

A serial bus connector includes a fixing portion fixed in a metal casing, and further includes a first terminal group and a second terminal group mirrored on both sides of the metal casing axis, and the first terminal group and the second terminal group are partially fixed In the fixing portion, the fixing portion forms a transmission passage in the same axial direction as the metal casing, and the transmission passage fixes the elastic frame (160) and the circuit board (220), and the elastic frame (160) and the metal The protruding portion of the outer casing (100) and the axial direction are cooperatively connected with the first terminal group and the second terminal group.
The serial bus connector according to claim 1, wherein the conductive terminals of the first terminal group and the second terminal group are symmetrically formed to form a curved convex portion (127) protruding into the transmission channel, and the symmetric bending is performed. The protrusions (127) are clamped to the corresponding connection terminals of the circuit board (220).
The serial bus connector according to claim 1 or 2, wherein said fixing portion comprises an upper fixing portion (120) and a lower fixing portion (180), and a portion of said upper terminal group (140) is fixed at Among the upper fixing portions (120), the upper terminal group (140) is fixed in the axial direction of the end vertical metal casing (100) fixed in the upper fixing portion (120), and protrudes from the lower end surface of the upper fixing portion (120). The other end portion of the upper terminal group (140) is extended by the left end surface of the upper fixing portion (120) in the axial direction of the metal casing (100);

Another set of identical upper terminal sets (140) and upper fixing portions (120) are rotated 180 degrees around the axis of the metal casing (100) in a center-symmetrical manner with respect to the axis of the metal casing (100) to form a lower fixing. Part (180) and lower terminal set (200).
The serial bus connector according to claim 3, wherein said upper fixing portion (120) comprises a fixing plate (121), an edge fitting column (122) and an end positioning post (123), the end portion The positioning post (123) is a transverse rectangular column, and the edge fitting column (122) is a transverse rectangular column. The spacing between the left and right end faces of the edge fitting column (122) is greater than the spacing between the left and right end faces of the fixing plate (121). The distance between the left and right end faces of the fixing plate (121) is larger than the spacing between the left and right end faces of the end positioning column (123), and the spacing between the upper and lower end faces of the end positioning column (123) is larger than the spacing between the upper and lower end faces of the edge fitting column (122), and the edge fitting column The spacing between the upper and lower end faces of (122) is greater than the spacing between the upper and lower end faces of the fixed plate (121);

The rear end surface of the fixing plate (121) is fixed to the front end surface of the edge fitting column (122), and the right end surface of the fixing plate (121) is flush with the right end surface of the edge fitting column (122), and the edge fitting column (122) The right end of the rear end surface is fixedly embedded in the middle of the front end surface of the end positioning post (123), and the right end surface of the edge fitting column (122) is flush with the right end surface of the end positioning post (123);

A rectangular through hole penetrating the upper and lower end faces is formed in the fixing plate (121) as a clamping through hole (124).
The serial bus connector according to claim 4, wherein said upper terminal group (140) runs through the center portion of the right end portion of the fixed plate (121) to the left in the axial direction of the metal casing (100). Clamping through hole (124) side a conductive terminal portion (126) of the upper terminal group (140) protrudes from a lower end of the left end surface of the fixing plate (121);

In the clamp through hole (124), the conductive terminal in the upper terminal group (140) forms a curved convex portion (127) downward in the axial direction of the clamp through hole (124), and the top of the curved convex portion (127) protrudes Fix the lower end surface of the plate (121).
The serial bus connector according to claim 5, wherein said conductive terminal head portion (126) is located between edge fitting posts of the upper and lower fixing portions, and the conductive terminal head portion (126) is from right to right. The left side is gradually bent upward, and is bent downward at the end of the conductive terminal head (126).
The serial bus connector according to any one of claims 1 to 6, wherein said elastic frame (160) comprises a planar body, one end of said planar body, both sides of the extending direction, forming a symmetrical shape The main body of the façade, the single façade body is symmetrical based on the plane body, the outer spacing of the façade body is smaller than the corresponding spacing of the other end of the plane body, the upper end surface of the plane body forms a drop, and the upper upper end surface is on the side of the façade body; a pre-embedded groove corresponding to the terminal group is formed by the lower upper end facing the upper upper end surface; the upper and lower end faces of the planar body are symmetric in shape; the pre-embedded groove in the upper and lower end faces and the first terminal group and the second terminal Group match connection.
The serial bus connector according to claim 7, wherein a lower upper end surface of said elastic plane body (161) faces a higher upper end surface and a first portion corresponding to a conductive terminal of said upper terminal group (140) a pre-embedded groove set (172), the groove depth of the first pre-embedded groove set (172) is gradually deepened according to the extending direction of the conductive terminal head (126), and the conductive terminal head of the upper terminal set (140) Department (126) adaptation;

A second pre-embedded groove set (173) symmetrically disposed on the lower end surface of the elastic planar body (161) is fitted to the conductive terminal head (126) of the lower terminal set (200).
A serial bus connector according to claim 7 or 8, wherein said planar body comprises an elastic planar body (161) and two planar body complementary bodies (163), the facade body comprising two elastic facades The body (162), the elastic plane body (161) is a flat plate, the elastic facade body (162) is a flat plate, the planar body complementary body (163) is a flat plate, and the left and right end faces of the elastic planar body (161) are spaced apart from each other by a planar body. The distance between the left and right end faces of the complementary body (163), the distance between the left and right end faces of the planar body replenishing body (163) is larger than the distance between the left and right end faces of the elastic façade body (162), and the pitch of the upper and lower end faces of the elastic façade body (162) is larger than that of the elastic plane body ( 161) the distance between the upper and lower end faces, the distance between the upper and lower end faces of the elastic planar body (161) is equal to the distance between the upper and lower end faces of the planar body complementary body (163);

The left end portion of the rear end surface of the elastic plane body (161) is fixedly embedded in the middle of the front end surface of a resilient façade body (162), and the left end surface of the elastic façade body (162) is flush with the left end surface of the elastic plane body (161), and is elastic. The rear end surface of the façade body (162) is flush with the rear end surface of the elastic plane body (161), and the other elastic façade body (162) is symmetrically disposed at the left end portion of the front end surface of the elastic plane body (161); The front end surface of the body (163) is fixed to the right end portion of the rear end surface of the elastic plane body (161), the right end surface of the plane body replenishing body (163) is flush with the right end surface of the elastic plane body (161), and the other plane body replenishing body (163) symmetrically disposed at the right end portion of the front end surface of the elastic plane body (161).
The serial bus connector according to claim 9, wherein the rear end of the edge fitting post (122) of the upper fixing portion (120) faces the rear side to form an outwardly bent structure, and the metal casing (100) The middle of the front and rear side walls form an outwardly bent structure from the inner cavity to the outer side.
The serial bus connector according to any one of claims 1 to 9, wherein the metal casing (100) is inserted into the upper side wall and the lower side wall of the end, and the first elastic piece facing outward is symmetrically disposed ( 101), between the two first elastic pieces (101) of the same side wall, two ribs (102) parallel to the axis of the metal outer casing (100) are disposed, and the extending length of the convex ribs (102) is larger than that of the first elastic piece (101) The length of the upper side wall and the lower side wall are respectively provided with stress blind holes (105), and the stress blind holes (105) are located between the two convex ribs (102) of the same side wall, and the stress blind holes (105) The outline of the stress is a rectangle whose corners are smoothly transitioned, and the long side of the contour of the stress blind hole (105) is perpendicular to the extending direction of the rib (102).
The serial bus connector according to claim 11, wherein said stress blind holes (105) are symmetrically disposed outside the upper side wall and the lower side wall, and are formed with ribs (102) on the outer side of the same side wall. a strengthened structure within one level;

Alternatively, the stress blind holes (105) are symmetrically disposed on the inner side of the upper side wall and the lower side wall, and the ribs (102) on the outer side of the same side wall form a reinforcing structure in two layers;

Alternatively, on the upper side wall or the lower side wall, corresponding stress blind holes (105) are simultaneously disposed on the inner side and the outer side.
A serial bus connector according to claim 11 or 12, wherein said stress blind hole (105) is replaced by a correspondingly shaped through hole.