TWM540412U - Serial bus connector - Google Patents

Description

Serial bus connector

This creation design a connector, especially a connector for high speed electrical signals.

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 interposed, and the positive and negative 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 short-term contact with the surrounding metal casing, and the elastic recovery 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 conventional technical means.

The purpose of the present invention is to provide a tandem bus bar connector, which solves the technical problem that the existing connector cannot effectively ensure the connection reliability when the connection is stressed.

The serial bus bar connector of the present invention comprises a fixing portion fixed in the metal casing, and further comprising a first terminal group, a second terminal group, a first terminal group and a second terminal group mirrored on both sides of the metal casing axis. 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 terminal group The second terminal group is mated.

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. The upper terminal group of the first and second terminal groups is partially fixed in the upper fixing portion, and the upper terminal group is fixed at the end vertical metal in the upper fixing portion. The outer casing extends in the axial direction and protrudes from the lower end surface of the upper fixing portion, and the other end portion of the upper terminal group protrudes from the left end surface of the upper fixing portion in the axial direction of the metal casing; the other set of the same upper terminal group and the upper portion The fixing portion is 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 rear end surface of the edge fitting column is fixed at the right end. The right end surface of the edge fitting column is flush with the right end surface of the end positioning post; the rectangular through hole penetrating the upper and lower end faces is formed as a clamping through hole on the fixing plate.

The upper terminal group extends along the axial direction of the metal casing from the central portion of the right end portion of the fixed plate to the left side of the through hole sidewall, 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 through hole, the conductive terminals in the upper terminal group form a curved convex portion downward in the axial direction of the clamping 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.

The planar body includes an elastic planar body, and a first pre-embedded groove group corresponding to the conductive terminal of the upper terminal group is opened from a lower upper end surface of the elastic planar body toward a higher upper end surface, and the first pre-embedded groove group The depth of the groove is gradually deepened according to the extending direction of the head of the conductive terminal, and is matched with the head of the conductive terminal of the upper terminal group; the second pre-embedded groove group symmetrically disposed at the lower end surface of the elastic plane body, and the lower terminal group The conductive terminal head is adapted.

The planar body further includes two planar body complementary bodies, the vertical body is an elastic façade body, the elastic planar body is a flat plate, the elastic façade body is a flat plate, and the planar body complementary body is a flat plate, and the elastic body The distance between the left and right end faces of the planar body is greater than the distance between the left and right end faces of the complementary body of the planar body, and the distance between the left and right end faces of the complementary body of the planar body is greater than the distance between the left and right end faces of the body of the elastic façade. The spacing between the upper and lower end faces of the elastic planar body is equal to the distance 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 face of the main body of the elastic façade, and the left end surface of the elastic façade body and the elastic planar body The left end surface is flush, the rear end surface of the elastic façade main body is flush with the rear end surface of the elastic plane main body, and the other elastic façade main body is symmetrically disposed at the left end portion of the front end surface of the elastic flat body; the front end surface of a planar main body replenishing body is fixed at The right end of the rear end surface of the elastic planar body, the planar body complement A right end surface of the right end surface of the elastic body plane flush with the plane of the other complementary body symmetry plane disposed at a right end portion of the front end of the elastic body plane.

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 extending length of the convex rib More than the length of the first elastic piece, the upper side wall and the lower side wall are respectively provided with stress blind holes, and the stress blind holes are located between the two convex ribs of the same side wall, and the contour of the stress blind hole is a rectangular shape with a smooth transition angle, stress The long side of the contour of the 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; or the stress blind holes are symmetrically disposed on the inner side of the upper side wall and the lower side wall, and The ribs on the outer side of the same side wall form a reinforcing structure in two layers; or, 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 bar connector of the present invention uses the elastic frame to carry the main deformation elastic force during the plugging, which reduces the force load of the terminal group and ensures 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.

Embodiments of the present creation will be described below based on Figs. 1 to 14 . This description is not intended to limit the implementation of the present invention, but is one of the embodiments of the present invention.

The specific implementation manner of the present creation will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, the tandem bus bar 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. The plate 220 is composed of the upper fixing portion 120 and 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 casing 100 is axially fixed in the metal 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 passages and clamps corresponding 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, on the upper side wall and the lower side wall of the metal casing, the first elastic piece 101 facing outward is symmetrically disposed, and the specific setting is performed. At the front end and the rear end of the upper side wall, the front end and the rear end of the lower side wall. The first elastic piece 101 is formed by stamping a partial casing of the metal casing 100 from the inner cavity of the metal casing 100 to the outside. The first elastic piece 101 is a plate material having a convex portion in the middle portion, and the convex portion is separated from the metal casing 100, The ends 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 (ie, the output end) of the metal casing 100, 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, on each of the first positioning plates 103. Two positioning holes (not shown in the drawing) arranged perpendicular to the axis of the metal casing 100 are provided.

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 (the bending transition from the left end to the right end is simultaneously formed). The front side wall of the upper portion of the curved ridge line 104 is symmetrical with the front side wall of the lower portion. 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 electric 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 as a pinch through hole 124 in the fixing plate 121, and two positioning pins that are engaged with the positioning holes of the first positioning plate 103 of the metal case are disposed on the upper end surface of the right side of the pinch 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 through hole 124. The conductive terminal portion 126 of the upper terminal group 140 is The lower end of the left end surface of the fixed plate 121 protrudes.

In the clamping through hole 124, the conductive terminals in the upper terminal group 140 form a curved convex portion 127 that is downward in the axial direction of the clamping through hole 124, and the top of the curved convex portion 127 protrudes to fix the lower end surface of the flat plate 121 (into the transmission channel) ).

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 main body 162 is a flat plate having a front and rear end faces which are distinctive features (significant surface area), and the flat main body replenishing 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 plane 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 complementary body 163 is symmetrically disposed at The right end portion of the front end surface of the elastic flat 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 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 elastic flat body main body 161 that is connected.

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 pad groups corresponding to the upper and lower terminal groups. 222. The connection terminal and the pad are electrically connected in the circuit board 220. Two positioning through holes 171 penetrating the upper and lower end faces are formed between the connection terminal group 221 and the pad group 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 corresponding pre-embedded groove groups on both sides of the elastic frame 160, so that the downwardly rounded end of the conductive terminal head 126 is fitted to the groove. in. 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, a stress blind hole 105 (or a counterbore) is disposed, and the stress blind hole 105 is located between the two ribs 102 of the same side wall. The contour of the stress blind hole 105 is a rectangle whose edge 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 a practical application, when the serial bus bar 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 along the vertical component of the force direction. The outer casing is bent and protected by the elastic frame, and the terminal group on the other side does not short-circuit or splicing with 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 transmission 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 sidewall, and the edge of the rib 102 is bent at the joint of the sidewall to form a large internal stress accumulation, and a linear stress accumulation region is formed along the joint. 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 serial busbar connector of the present invention is suitable for industrial production and can be applied to a matched and existing connector socket, which improves the stability of the connection structure during the connection process, improves the signal stability during the connection process, and prolongs the use. life.

The above description and description are only illustrative of the preferred embodiments of the present invention, and those having ordinary skill in the art may make other modifications in accordance with the scope of the patent application as defined below and the above description, but such modifications are still It is the creative spirit of this creation and is within the scope of this creation.

100‧‧‧Metal casing
101‧‧‧First shrapnel
102‧‧‧ rib
103‧‧‧First Positioning Plate
104‧‧‧Bending ridgeline
105‧‧‧stress blind hole
120‧‧‧Upper Department
121‧‧‧Fixed plate
122‧‧‧Edge adapter column
123‧‧‧End positioning column
124‧‧‧Clamping through hole
125‧‧‧Locating pin
126‧‧‧Electrical terminal head
127‧‧‧bending convex
140‧‧‧Upper terminal group
160‧‧‧Flexible frame
161‧‧‧Elastic plane body
162‧‧‧Elastic facade body
163‧‧‧planar body complement
171‧‧‧ Positioning through hole
172‧‧‧First pre-embedded groove group
173‧‧‧Second pre-embedded groove group
174‧‧‧ Smooth transition surface
175‧‧‧Chamfering
180‧‧‧Under the fixed department
200‧‧‧Next terminal group
220‧‧‧Circuit board
221‧‧‧Connecting terminal group
222‧‧‧Face group

1 is a schematic view of the axial assembly of the serial bus bar connector; FIG. 2 is a front view of the metal casing of the serial bus bar connector; FIG. 3 is a metal casing of the serial bus bar connector Figure 4 is a front view showing the assembly of the upper fixing portion and the upper terminal group of the serial bus bar connector; Figure 5 is a plan view showing the assembly of the upper fixing portion and the upper terminal group of the serial bus bar connector; 6 is a left side view of the assembly of the upper fixing portion and the upper terminal group of the serial bus bar connector; FIG. 7 is a top view of the elastic frame of the serial bus bar connector; FIG. 8 is a serial bus bar of the creation Figure 9 is a left side view of the elastic frame of the serial bus bar connector; Figure 10 is a right side view of the elastic frame of the serial bus bar connector; Figure 11 is a creation FIG. 12 is a front view of the assembly of the upper terminal block, the elastic frame, the circuit board and the lower terminal group of the serial bus bar connector; FIG. 13 is a schematic serial flow of the creation of the serial bus bar connector; Row connection FIG 14 is a schematic isometric view of the creation of the serial bus connector taken along the axis of the metal housing; a main metal shell cross-sectional view.

100‧‧‧Metal casing

120‧‧‧Upper Department

140‧‧‧Upper terminal group

160‧‧‧Flexible frame

180‧‧‧Under the fixed department

200‧‧‧Next terminal group

220‧‧‧Circuit board

Claims (13)

A serial bus bar 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, wherein 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), the elastic frame (160) and the metal casing (100) The protruding portion in the same axial direction is cooperatively connected with the first terminal group and the second terminal group. The tandem bus bar connector according to claim 1, wherein the conductive terminals of the first terminal group and the second terminal group symmetrically form a curved convex portion (127) protruding toward the transmission channel, and the symmetric curved convex portion (127) nip connection with a corresponding connection terminal of the circuit board (220). The tandem bus bar connector of claim 2, wherein the fixing portion includes an upper fixing portion (120) and a lower fixing portion (180), and an upper terminal group (140) of the first and second terminal groups Partially fixed in the upper fixing portion (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 the upper fixing portion (120) The lower end surface protrudes, 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); another set of the same upper terminal group (140) and The upper fixing portion (120) is 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 portion (180) and a lower terminal group (200). The tandem bus bar connector of claim 3, wherein the upper fixing portion (120) comprises a fixing plate (121), an edge fitting column (122) and an end positioning column (123), and the end positioning column (123) is a transverse rectangular column, the edge fitting column (122) is a transverse rectangular column, and the spacing between the left and right end faces of the edge fitting column (122) is larger than the spacing between the left and right end faces of the fixing plate (121), and the fixing plate is fixed. The spacing between the left and right end faces of the (121) is greater than the spacing between the left and right end faces of the end positioning post (123), and the spacing between the upper and lower end faces of the end positioning post (123) is greater than the spacing between the upper and lower end faces of the edge fitting post (122), and the edge fitting column (122) The spacing between the upper and lower end faces 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 adapted to the edge The right end surface of the column (122) is flush, and the right end of the rear end surface of the edge fitting column (122) is fixedly embedded in the middle of the front end surface of the end positioning post (123), and the right end surface and the end positioning post of the edge fitting column (122) Right of (123) Flush surface; defines rectangular through hole through upper and lower end as a clamping through hole (124) on the mounting plate (121). The tandem bus bar connector according to claim 4, wherein the upper terminal group (140) is inserted in the axial direction of the metal casing (100) from the center of the right end portion of the fixed plate (121) to the left. The side wall of the through hole (124), the conductive terminal head portion (126) of the upper terminal group (140) protrudes from the lower end of the left end surface of the fixing plate (121); in the clamping through hole (124), the upper terminal group (140) The conductive terminal in the middle forms a curved convex portion (127) downward in the axial direction of the clamp through hole (124), and the top portion of the curved convex portion (127) protrudes to fix the lower end surface of the flat plate (121). The tandem bus bar connector of claim 5, wherein the conductive terminal head (126) is located between the edge fitting posts of the upper and lower fixing portions, and the conductive terminal head (126) gradually extends from right to left. Bending upwards, the end of the conductive terminal head (126) is smoothly bent downward. The tandem bus bar connector of any one of claims 1 to 6, wherein the elastic frame (160) comprises a planar body, one end of the planar body, two sides extending in a direction, forming a symmetrical facade The main 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, 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; The lower upper end faces the upper upper end surface and defines a pre-embedded recess corresponding to the terminal group; the upper and lower end surfaces of the planar main body are symmetric in shape; and the pre-embedded recess in the upper and lower end surfaces cooperates with the first terminal group and the second terminal group connection. The tandem bus bar connector of claim 7, wherein the planar body comprises an elastic planar body (161), and a higher upper end surface is opened from the lower upper end of the elastic planar body (161) and the upper terminal The first pre-embedded groove group (172) of the conductive terminal of the group (140), the groove depth of the first pre-embedded groove group (172) is gradually deepened according to the extending direction of the conductive terminal head (126), and The conductive terminal head (126) of the upper terminal set (140) is adapted; at the lower end surface of the elastic planar body (161), the symmetrically disposed second pre-embedded groove set (173) is electrically conductive with the lower terminal set (200) The terminal head (126) is adapted. The tandem busbar connector of claim 8, wherein the planar body further comprises two planar body supplements (163), the facade body being an elastic facade body (162) and an elastic plane body (161) Is a flat plate, the elastic façade main body (162) is a flat plate, and the planar main body replenishing body (163) is a flat plate, and the left and right end faces of the elastic planar main body (161) are spaced apart from each other by a distance larger than the left and right end faces of the planar main body replenishing 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 the distance between the upper and lower end faces of the elastic plane body (161), and the elastic plane body The pitch of the upper and lower end faces of (161) is equal to the pitch of the upper and lower end faces of the planar body replenishing body (163); the left end portion of the rear end face of the elastic planar body (161) is fixedly embedded in the middle of the front end face of a resilient façade body (162), and the elastic façade body The left end surface of (162) is flush with the left end surface of the elastic plane body (161), and the rear end surface of the elastic façade body (162) and the elastic plane body (16) 1) The rear end surface is flush, and the other elastic façade 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 a planar main body replenishing body (163) is fixed to the elastic flat body (161) The right end portion of the rear end surface, the right end surface of the planar body replenishing body (163) is flush with the right end surface of the elastic plane body (161), and the other planar body replenishing body (163) is symmetrically disposed at the front end of the elastic plane main body (161) Right side of the face. The tandem bus bar connector of any one of claims 4 to 6, 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, metal The middle portion of the front and rear side walls of the outer casing (100) forms an outwardly bent structure from the inner cavity to the outer side. The tandem bus bar connector according to any one of claims 1 to 6, 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 (101) facing the outer side is symmetrically disposed, the same Between the two first elastic pieces (101) of the side wall, two ribs (102) parallel to the axis of the metal casing (100) are disposed, and the extending length of the ribs (102) is greater than the length of the first elastic piece (101). On the upper side wall and the lower side wall, each of the stress blind holes (105) is disposed, and the stress blind holes (105) are located between the two convex ribs (102) of the same side wall, and the contour of the stress blind hole (105) is a smooth transition of the corners. The rectangular shape, the long side of the contour of the stress blind hole (105) is perpendicular to the extending direction of the rib (102). The tandem bus bar connector of claim 11, wherein the stress blind holes (105) are symmetrically disposed outside the upper side wall and the lower side wall, and the ribs (102) on the outer side of the same side wall form a reinforcement in one layer. Or the stress blind hole (105) is symmetrically disposed on the inner side of the upper side wall and the lower side wall, and the convex rib (102) on the outer side of the same side wall forms a reinforcing structure in two layers; or, the upper side wall or the lower side On the side wall, corresponding stress blind holes (105) are simultaneously provided on the inner side and the outer side. The tandem busbar connector of claim 12, wherein the stress blind holes (105) are replaced with correspondingly shaped through holes.