CN106058560B - Easy-to-assemble USB connector - Google Patents

Abstract

The invention discloses an easy-to-assemble USB connector, which includes two terminal modules with the same structure and two insulating bases. Each terminal module includes a hook piece, a plurality of conductive terminals arranged in a row, and an injection molded body covering and fixing the hook piece and the conductive terminals. Flip one of the terminal modules 180 degrees and directly buckle the other terminal module to combine the two, thus simplifying the manufacturing process. Since the two insulating bases form an integrated structure by integrally molding the shielding sheet, there is no need to subsequently assemble the shielding sheet thereon, thereby saving a subsequent assembly process.

Description

Easy-to-assemble USB connector

technical field

The invention relates to the technical field of connectors, in particular to an easy-to-assemble USB connector with simplified manufacturing process, stable structure and resistance to plugging and unplugging.

Background technique

At present, the new generation of USB interface is a brand-new interface standard. It does not distinguish between positive and negative during use. Both positive and negative insertion can be used normally. The faster USB standard.

The design of the existing USB connector can refer to the mainland patent CN201520688730.5. This existing connector uses two terminal modules and a central hook. After the three are assembled together, they are assembled with the insulating base. Moreover, the upper and lower shielding sheets can only be combined with the insulating base by subsequent assembly process. This structural design makes the assembly process of the entire USB connector unable to be further simplified. The complicated process not only cannot improve product production efficiency, but also makes it difficult to guarantee product quality. .

Therefore, it is necessary to provide a new easy-to-assemble USB connector, which adopts a subversive structural design, can simplify the manufacturing process, facilitate assembly, and improve the stability of the product structure, thereby solving the above-mentioned problems in the prior art.

Contents of the invention

The main purpose of the present invention is to provide an easy-to-assemble USB connector, the two terminal modules of which are equipped with a hook and have the same structure, and can be directly snapped together only by turning 180 degrees, simplifying the manufacturing process and easy to assemble; at the same time, due to The insulating base adopts a two-piece design, and each insulating base has a shielding sheet and an insulating body made into an integrated structure, which does not require subsequent assembly of the shielding sheet on it, thereby saving the subsequent assembly process.

Another object of the present invention is to provide an easy-to-assemble USB connector with simplified manufacturing process, stable structure and resistance to plugging and unplugging.

Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

To achieve the above purpose, the present invention adopts the following technical solution: an easy-to-assemble USB connector includes at least two terminal modules with the same structure and two insulating bases. Each terminal module includes a hook piece, a plurality of conductive terminals arranged in a row, and an injection molded body covering and fixing the hook piece and the conductive terminals. Each conductive terminal has an elastic contact portion and a rearwardly extending tail portion; the elastic contact portion of the row of conductive terminals protrudes forward from the front end of the injection molding body, and its tail portion faces from the rear end of the injection molding body back out. The hook part has a flat plate, a hook arm located on one side of the flat plate and extending forward, and a fixed rear end extending backward; an inward convex portion is formed at the front end of the hook arm. The flat plate part of the hook part is embedded in the top surface of the injection molded body; the hook arm protrudes from the front end of the injection molded body and is located on one side of the elastic contact part of the row of conductive terminals, and its convex part faces these Elastic contact portion; the fixed tail protrudes from the rear end face of the injection molded body and is located on one side of the tail of the row of conductive terminals. A fixing column and a fixing hole are formed on the top surface of the injection molding body. One of the terminal modules is turned over 180 degrees and directly fastened to the other terminal module, the fixing column of the one terminal module is matched with the fixing hole of the other terminal module, and the fixing column of the other terminal module is matched with the fixing hole of the other terminal module. The cooperation of the fixing hole of one of the terminal modules; and the elastic contact parts of the conductive terminals of the two terminal modules are arranged in two rows and form an elastic clamping shape, and the hooks of the two hooks of the two terminal modules The hook arms are respectively located on the left and right sides of the two rows of conductive terminals. Each insulating base includes a shielding sheet and an insulating body covering and fixing the shielding sheet; the shielding sheet is embedded in the outer surface of the insulating body, and a concave space is formed on the inner surface of the insulating body; when the two When the two insulating bases are fastened on the two combined terminal modules, the front ends of the two terminal modules are accommodated in the concave spaces of the two insulating bases, and a socket is formed at the front ends of the concave spaces. , for insertion of an external plug connector.

In one embodiment, the area of the flat plate portion of the hook member is less than or equal to half of the area of the top surface of the injection molded body.

In one embodiment, the hook arm of the hook member is a bent part, and the hook arm is vertically bent downward from one side of the flat plate portion.

In one embodiment, the hook arm of the hook member is a blanking member, and the hook arm is located in the same horizontal plane as the flat plate portion.

In one of the embodiments, a step is formed at the center of the top surface of the injection molding body to divide the top surface into two halves, one half of which is a high-level surface, and the other half is a lower level slightly lower than the high-level surface surface; the fixing column is formed on the high-level surface, and the fixing hole is formed on the low-level surface; the flat plate part is embedded in the high-level surface of the injection molding body.

In one of the embodiments, the front end of the injection molded body is convex; Between the arms; the fixed tail end of the hook is located between the tail of the row of conductive terminals and one of the arms.

In one of the embodiments, the two insulating bases have the same structure, and a long side groove and a side hole connected with the side groove are respectively formed on both sides of the concave space of the insulating body; A plurality of through holes are also formed on the insulating body; the shielding sheets each have a frame-shaped sheet body and a plurality of contact elastic sheets bent forward from the front edge of the sheet body; wherein the sheet body is embedded in the insulating body On the outer surface, these contact elastic pieces extend into the concave space from the corresponding through holes and are exposed in the socket; the hook arms of the two hook parts extend into the corresponding side grooves and are located at the edge of the concave space. On both sides, the convex parts are exposed in the corresponding side holes.

In one embodiment, the USB connector further includes a shell, which is a flat sleeve structure, and is used to surround the two insulating bases and the two terminal modules.

In one embodiment, the terminal module is made by injection molding process, wherein the hook member, the conductive terminals and the injection molded body form an integrated structure; and the insulating base is made by injection molding process , wherein the shielding sheet and the insulating body form an integrated structure.

Compared with the prior art, the easy-to-assemble USB connector of the present invention adopts two terminal modules with the same structure and equipped with a hook piece, which can be directly buckled by turning over 180 degrees, thereby simplifying the manufacturing process; at the same time, due to The insulating base adopts a two-piece design, and each insulating base has a shielding sheet and an insulating body made into an integrated structure, which does not require subsequent assembly of the shielding sheet on it, thereby saving the subsequent assembly process. In addition, the present invention can achieve the goals of simple manufacturing process, stable structure, and resistance to plugging and unplugging through the above structural configuration.

Description of drawings

FIG. 1 is a schematic perspective view of the three-dimensional structure of the USB connector of the present invention.

FIG. 2 is a schematic diagram of an exploded structure of the USB connector of the present invention shown in FIG. 1 .

FIG. 3 is a schematic perspective view of the three-dimensional structure of the terminal module of the present invention.

FIG. 4 is a schematic diagram of an exploded structure of the terminal module shown in FIG. 3 of the present invention, which clearly shows the structure of an embodiment of the hook member of the present invention.

Fig. 5 is the structure of another embodiment of the hook member of the present invention.

FIG. 6 is a schematic diagram of the relative positional relationship between two terminal modules in the present invention.

FIG. 7 is a schematic diagram of the combination of the two terminal modules shown in FIG. 6 according to the present invention.

FIG. 8 is a schematic diagram of the relative positional relationship between two insulating bases according to the present invention.

Fig. 9 is a schematic structural diagram of the shielding member of the present invention.

FIG. 10 is a schematic diagram of the relative positional relationship between the two insulating bases and the two terminal modules before being snapped together according to the present invention.

FIG. 11 is a structural schematic diagram of the two insulating bases of the present invention after fastening.

The main reference signs in the accompanying drawings of the description of the present invention are explained as follows:

USB connector 1 terminal block 10, 10’

Hook piece 12, 12’ flat part 120, 120’

Hook arm 122, 122' fixed end 124

Perforation 126 Projection 128

Conductive terminal 14 Spring contact part 140

Tail 142 Injection Molded Body 16

Fixing post 160 Fixing hole 162

Stairs 164 Tall Surfaces 166

lower surface 168 arm 169

Insulating base 20, 20’ Shield 22

Sheet body 220 Contact shrapnel 222

insulating body 24 recessed space 240

Side groove 242 Side hole 244

Through hole 246 Socket 248

The housing 30 has a front opening 32.

Detailed ways

The following description of the embodiments refers to the accompanying drawings to illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the attached drawings. direction. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

Please refer to the detailed structure of the USB connector 1 of the present invention shown in Figures 1 to 11, wherein Figure 1 is a schematic three-dimensional structure diagram of the USB connector 1 of the present invention; Figure 2 is the decomposition of the USB connector 1 of the present invention shown in Figure 1 Schematic diagram of the structure; FIG. 3 is a schematic diagram of the three-dimensional structure of the terminal module 10 of the present invention; FIG. 4 is a schematic diagram of the exploded structure of the terminal module 10 of the present invention shown in FIG. 3 , which clearly shows the structure of one embodiment of the hook member 12 of the present invention ; FIG. 5 is the structure of another embodiment of the hook member 12 of the present invention; FIG. 6 is a schematic diagram of the relative positional relationship between the two terminal modules 10 of the present invention; FIG. 7 is the combination of the two terminal modules 10 of the present invention shown in FIG. 6 Figure 8 is a schematic diagram of the relative positional relationship between the two insulating bases 20 of the present invention; Figure 9 is a schematic structural view of the shielding element of the present invention; Figure 10 is the two insulating bases 20 of the present invention before they are buckled together A schematic diagram of the relative positional relationship of the two terminal modules 10; and FIG. 11 is a schematic structural diagram of the two insulating bases 20 of the present invention after they are snapped together.

As shown in FIG. 2 , the USB connector 1 of the present invention mainly includes two terminal modules 10 , 10 ′ with the same structure, two insulating bases 20 , 20 ′, and a housing 30 .

Since the two terminal modules 10, 10' have the same structure, the structure of one of the terminal modules 10 will be described in detail below as an example.

As shown in Figure 3 and Figure 4, the terminal module 10 is made by injection molding process, which includes a hook 12, a number of conductive terminals 14 arranged in a row, and an injection molding formed and The injection molding body 16 covering and fixing the hook member 12 and the conductive terminals 14 is covered.

As shown in Figures 3 and 4, the hook member 12 has a flat plate portion 120, a hook arm 122 located on one side of the flat plate portion 120 and extending forward, and a hook arm 122 located on the flat plate The fixed tail end 124 on the same side of the portion 120 but extending rearwardly. The area of the flat plate portion 120 is substantially less than or equal to half of the area of the top surface of the injection molded body 16 . At least one through hole 126 is formed on the flat portion 120 for increasing the coupling degree between the hook member 12 and the injection molded body 16 . A protruding portion 128 bent inward is formed at a front end of the hook arm 122 . The fixed tail end 124 is bent twice from the rear edge of the flat portion 120 .

In this embodiment, as shown in FIG. 4 , the hook arm 122 of the hook member 12 is a bent part, and the hook arm 122 is bent vertically downward from one side of the flat plate portion 120 .

In another embodiment, as shown in FIG. 5 , the hook arm 122' of the hook member 12' is a blank, and the hook arm 122' is located in the same horizontal plane as the flat plate portion 120'.

As shown in FIGS. 3 and 4 , each conductive terminal 14 has a resilient contact portion 140 and a rearwardly extending tail portion 142 .

As shown in FIG. 3 and FIG. 4 , the injection molding body 16 has a fixing post 160 formed on its top surface and located on one side, and a fixing hole 162 formed on its top surface and located on the other side. In this embodiment, a step 164 is formed at the central position of the top surface of the injection molding body 16, so that the top surface is stepped, and the top surface is divided into two halves, one half of which is a high-level surface 166, and the other half is a lower surface 168 slightly lower than the upper surface 166 . The fixing post 160 is located on the upper surface 166 , and the fixing hole 162 is located on the lower surface 168 . Of course, in other embodiments, the positions of the fixing post 160 and the fixing hole 162 can be exchanged, and the fixing function can also be realized. In addition, the front end of the injection molding body 16 is stepped, so that the front end of the injection molding body 16 forms a convex shape. The injection molding body 16 also has two arms 169 extending backward, so that the rear end surface of the injection molding body 16 forms a concave shape.

As shown in FIG. 3, after the injection molding process is completed, the elastic contact portion 140 of the row of conductive terminals 14 protrudes forward from the front face of the injection molding body 16, and the tail portion 142 protrudes from the rear of the injection molding body 16. The end faces protrude rearwardly and are located between the two arm portions 169 . For the hook part 12, its flat plate portion 120 is embedded in the high-level surface 166 of the injection molding body 16, and the upper surface of the flat plate portion 120 is exposed from the high-level surface 166 of the top surface of the injection molding body 16; The arm 122 protrudes from the front end of the injection molding body 16 and is located on one side of the elastic contact portion 140 of the row of conductive terminals 14, and its convex portion 128 faces these elastic contact portions 140; The rear end surface of the injection molded body 16 protrudes and is located on one side of the tail portions 142 of the row of conductive terminals 14 , more specifically, the fixing tail end 124 is located between the tail portions 142 and one of the arm portions 169 .

As shown in Figure 6, in the subsequent assembly process, one of the terminal modules 10' is turned over 180 degrees and directly fastened to the other terminal module 10, wherein the upper terminal module 10' is called the upper terminal module 10', and the lower terminal module 10' It is called the lower terminal module 10. At this time, the upper terminal module 10' is engaged with the stepped top surface of the lower terminal module 10, and the fixing column (not shown in the figure) of the upper terminal module 10' is connected with the lower terminal The fitting of the fixing hole 162 of the module 10, and the fitting of the fixing column 160 of the lower terminal module 10 with the fixing hole (not shown in the figure) of the upper terminal module 10', so that the upper terminal module 10' and the lower terminal The module 10 is fixed in advance in the state shown in FIG. 7 . At this time, as shown in FIG. 7, the elastic contact portions 140 of the conductive terminals 14 of the two terminal modules 10, 10' are arranged in two rows and form an elastic clamping shape, so as to be connected with an external plug connector (not shown). ) electrical connection. The two hook arms 122 of the two terminal modules 10, 10' are located on the left and right sides of the two rows of conductive terminals 14, respectively.

As shown in Fig. 8, in this embodiment, the structures of the two insulating bases 20, 20' are substantially the same. Here, the detailed structure of the two insulating bases 20, 20' will be described together. Specifically, the insulating base 20 (or 20') is made by injection molding process, which includes a shielding sheet 22 and an insulating body 24 formed by injection molding and covering and fixing the shielding sheet 22. .

As shown in FIGS. 8 and 9 , the shielding piece 22 has a frame-shaped piece 220 and a plurality of contact elastic pieces 222 bent forward from the front edge of the piece 220 .

As shown in FIG. 8, a concave space 240 is formed on the inner surface of the insulating body 24, and a long side groove 242 and a side groove 242 connected to the side groove 242 are respectively formed on both sides of the concave space 240. Side hole 244 . In addition, a plurality of through holes 246 are formed on the insulating body 24 .

As shown in FIG. 8, after the injection molding process is completed, the sheet body 220 of the shielding sheet 22 is embedded in the outer surface of the insulating body 24, and the contact elastic sheets 222 extend into the concave space 240 from the corresponding through holes 246. .

As shown in Figure 10 and Figure 11, in the subsequent assembly process, the two insulating bases 20, 20' are fastened on the two combined terminal modules 10, 10', the two terminal modules 10, 10' The front end of 10' is accommodated in the concave space 240 of the two insulating bases 20, 20', and a socket 248 (see FIG. 11 ) is formed at the front end of the concave space 240 for the external plug connector insert. In more detail, these contact springs 222 are exposed in the socket 248, the hook arms 122 of the two hook parts 12 extend into the corresponding side grooves 242 and are located on both sides of the concave space 240, and the convex parts thereof 128 are exposed in corresponding side holes 244 . When the external plug connector is inserted, the protrusions 128 of the two hooks 12 can expand outward toward the corresponding side holes 244 .

As shown in FIG. 1 and FIG. 2 , the housing 30 is a flat sleeve structure, and the housing has a front opening 32 and a rear opening (not shown) communicating with the front opening 32 . The preassembled two insulating bases 20, 20' together with the two terminal modules 10, 10' are assembled into the housing 30 from back to front, so that the housing 30 surrounds these components to form a complete USB connector 1 .

Please refer to FIG. 1 , the front opening 32 and the socket 248 jointly constitute the docking port of the USB connector 1. When the external plug connector is inserted from the docking port, the plug connector first contacts the contact springs 222. Contact and stretch it outward smoothly, and then continue to insert, so as to make electrical contact with the elastic contact portions 140 (see FIG. 3 ) of the conductive terminals 14 .

To sum up, the USB connector 1 of the present invention adopts two terminal modules 10, 10' with the same structure and equipped with a hook 12, and it can be directly buckled only by turning one of the terminal modules 10' by 180 degrees. On the other terminal module 10, thereby simplifying the manufacturing process; at the same time, because the insulating base 20, 20' adopts a two-piece design, and each piece of insulating base 20 (or 20') is integrally formed with the shielding sheet 22 In this way, an integrated structure is formed, and there is no need to subsequently assemble the shielding sheet 22 thereon, thereby saving the subsequent assembly process. In addition, the present invention can achieve the goals of simple manufacturing process, stable structure, and resistance to plugging and unplugging through the above structural configuration.

Claims (8)

1. a kind of easy-to-assemble USB connector, it is characterised in that：The USB connector includes that there are two the identical Terminals Dies of structure Block and two insulating bases；Wherein

Each terminal module is coated and fixed including a clamp hook piece, several conducting terminals being arranged in a row and one should The injection molding ontology of clamp hook piece and these conducting terminals；

Each conducting terminal all has an elastic contact part and the tail portion that extends back；The Elastic Contact of this row's conducting terminal Portion is to be forward extended out from the front end face of the injection molding ontology, and its tail portion is stretched out backward from the rear end face of the injection molding ontology；

There is the clamp hook piece flat part, one to prolong backward positioned at the side of the flat part and the hook arm extended forward and one The fixation tail end stretched；An inside protrusion is formed in the front end of the hook arm；The flat part of the wherein clamp hook piece is embedded in the injection molding The top surface of ontology；The hook arm is to be stretched out from the front end face of the injection molding ontology and be located at the elastic contact part of this row's conducting terminal Side, and its protrusion is towards these elastic contact parts；The fixation tail end is to stretch out simultaneously position from the rear end face of the injection molding ontology Side in the tail portion of this row's conducting terminal；And

A fixed column and a mounting hole are formed on the top surface of the injection molding ontology；

Wherein terminal module overturning 180 degree is directly fastened on another terminal module, a wherein terminal module is consolidated Fixed column and the mounting hole of the another terminal module coordinate, and the fixed column of the another terminal module and a wherein terminal The mounting hole of module coordinates；And the elastic contact part of the conducting terminal of the two terminal modules lines up two rows and forms elastic clip Shape is held, and the hook arm of two clamp hook pieces of the two terminal modules is then located at the left and right sides of this two rows of conducting terminal；

Each insulating base includes that a shielding piece and one coat and fix the insulating body of the shielding piece；Shielding piece insertion should The outer surface of insulating body is formed with a concave shaped space in the inner surface of the insulating body；When the two insulating bases are fastened on When on the two bound terminal modules, the front end of the two terminal modules is accommodated in the concave shaped space of the two insulating bases In, and a socket is formed in the front end of the concave shaped space, it is used for being inserted into for an External plug connectors；

Wherein the terminal module is made by injection molding process, the clamp hook piece, these conducting terminals and the injection molding sheet The integrated structure of the bodily form；And the insulating base is also to be made by injection molding process, the shielding piece and the insulation Main body forms integral structure.

2. easy-to-assemble USB connector as described in claim 1, it is characterised in that：The area of the flat part of the clamp hook piece is small In or equal to the injection molding ontology top surface area half.

3. easy-to-assemble USB connector as described in claim 1, it is characterised in that：The hook arm of the clamp hook piece is a bending Part, the hook arm are from made of the bending downward vertically of the side of the flat part.

4. easy-to-assemble USB connector as described in claim 1, it is characterised in that：The hook arm of the clamp hook piece is a blanking Part, the hook arm are located in the same horizontal plane with the flat part.

5. easy-to-assemble USB connector as described in claim 1, it is characterised in that：Center in the top surface of the injection molding ontology Position is formed with a step, and for the top surface is split into two halves, wherein half is a high layer surface, the other half is for one than the high level The slightly lower low layer surface in surface；The fixed column is formed in the high layer surface, and the mounting hole is formed on the low layer surface；It should Flat part is embedded in the high layer surface of the injection molding ontology.

6. easy-to-assemble USB connector as described in claim 1, it is characterised in that：The front end face of the injection molding ontology is in type Type；Thereafter end face is in concave character type；For injection molding ontology tool there are two the arm to extend back, the tail portion of this row's conducting terminal is position Between the two arms；The fixation tail end of the clamp hook piece be positioned at this row's conducting terminal tail portion and a wherein arm it Between.

7. easy-to-assemble USB connector as described in claim 1, it is characterised in that：The structure of the two insulating bases is identical, It is respectively formed with the side opening that slot is connected when slot and one are with this of a strip in the both sides of the concave shaped space of the insulating body； Multiple through-holes are also formed on the insulating body；

The shielding piece all has a frame-shaped sheet body and multiple contact flat springs extended from the sheet body leading edge forward fold；

Wherein the sheet body is embedded in the outer surface of the insulating body, and the self-corresponding through-hole of these contact flat springs stretches into the concave shaped space And it is exposed in the socket；The hook arm of the two clamp hook pieces stretches into corresponding side slot and positioned at the two of the concave shaped space Side, protrusion are then exposed in corresponding side opening.

8. easy-to-assemble USB connector as described in claim 1, it is characterised in that：The USB connector further includes having outside one Shell, which is in flat-shaped tube-in-tube structure, for surrounding the two insulating bases and the two terminal modules.