TWM554232U - Electrical connector - Google Patents

Abstract

An electrical connector includes: a terminal block including an insulative housing and a plurality of conductive terminals fixed to the insulative housing, the insulative housing including a base and a tongue extending forwardly from the base, The conductive terminal includes a pair of joints exposed on the surface of the tongue plate and a soldering portion extending rearwardly from the insulating body; a shielding shell surrounding the receiving cavity formed by the front and rear through for the terminal block Wherein; two metal members, each of which is provided with a fixing hole; and a fixed casing overmolded on the two metal members, comprising a frame body and outwardly from both sides of the frame body The two ear portions are extended, and each of the ear portions is provided with a locking hole, the locking hole is aligned with the fixing hole of the metal member, and the frame body surrounds a receiving cavity formed by the front and the back for the shielding shell Insert it. The new electrical connector ensures a secure lock.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to a secure connector that is securely fastened.

Chinese patent CN201611020028.7 discloses a structurally stable USB Type-C socket connector, comprising: an insulating body, a first terminal, a second terminal, a third terminal, a metal spacer, a shielding shell and a main body casing; wherein the insulation The body includes a first insulating member, a second insulating member and a tongue member; the tongue member is inlaid with the front ends of the first insulating member and the second insulating member; the first terminal and the first insulating member are insert-molded, the first terminal The first contact portion has a front end embedded in the tongue plate member; the second terminal is insert-molded with the second insulating member, the second terminal has a second contact portion, and the front end of the second contact portion is buried in the tongue The third terminal is sandwiched between the first insulating member and the second insulating member; the metal spacer is disposed in the insulating body and separates the first terminal and the second terminal; the shielding shell is sleeved The outer surface of the main body casing has an ear portion extending outwardly, and the ear portion is provided with a screw hole, and the main body casing and the PCB are fixed by screws. The connector structure is generally made by injection molding of a plastic material, and the strength of the main body casing is weak, so that when subjected to a large external force, the ear is easily broken, thereby causing connectors and equipment (for example, The lock between the phones) has become insufficiently secure and it is necessary to make improvements.

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art described above, and to provide an electrical connector that ensures secure locking.

The present invention provides an electrical connector for the above technical problem, comprising: a terminal block including an insulative housing and a plurality of conductive terminals fixed on the insulative housing, the insulative housing including a base and extending forward from the base And a conductive terminal comprising a pair of joints exposed on a surface of the tongue plate and a welded portion extending rearwardly from the insulating body; a shielding shell surrounding the receiving cavity formed by the front and rear through For inserting the terminal block therein; two metal members each having a fixing hole; and a fixing case overmolded on the two metal members, including a frame body and Two ear portions extending outward from the two sides of the frame body, each of the ear portions is provided with a locking hole, the locking hole is aligned with the fixing hole of the metal member, and the frame body is formed to be connected front and rear a receiving cavity for inserting the shielding case therein.

In some embodiments, each of the metal members includes a fixing portion embedded in the fixing housing, an extending portion of the fixing housing extending rearward from the fixing portion, and a soldering leg further extending from the extending portion.

In some embodiments, the terminal block further includes a rear seat disposed behind the base and separated from the base, and a glue receiving groove is formed between the base and the rear seat, the base and the rear seat They are only connected together by conductive terminals.

In some embodiments, the shield housing includes a main housing, two extensions extending rearwardly from opposite sides of the main housing, and a soldering leg extending further from each of the extensions. The extensions are respectively attached to the two outer sides of the rear seat.

In some embodiments, the extensions and the soldering legs of the two metal members are respectively attached to the extension of the shielding housing and the outer side of the soldering leg, wherein the extension of the metal member corresponds to the extension of the shielding housing Soldered together.

In some embodiments, the fixing portion of the metal member includes a horizontal plate and a vertical plate bent from the horizontal plate; wherein the fixing hole is opened on the horizontal plate, and the extending portion is the vertical plate Extending backwards.

In some embodiments, the fixing holes of the metal member and the locking holes of the fixing housing are two circular holes that are center-aligned and substantially equal in size.

In some embodiments, the soldering portions of the conductive terminals are arranged in a row.

In some embodiments, the conductive terminals include a plurality of power terminals and a plurality of ground terminals, and the fixing portions and the solder portions of the power terminals and the ground terminals are locally widened.

In some embodiments, the fixing portions of the power terminals and the ground terminals are bounded by the center line of the tongue plate and are respectively bent and extended outward in the lateral direction.

Compared with the prior art, the electrical connector of the present invention has a corresponding metal member disposed at a locking hole of the ear portion of the fixed casing, and the fixing hole on the metal member is aligned with the locking hole of the fixed casing. Enhancing the structural strength of the ear such that when a fastener is inserted into the locking hole and the fixing hole and the electrical connector is locked to a device, the ear can have sufficient torsional strength and is not easy Damaged to ensure a secure lock.

Although the present invention can be readily embodied in various forms, the specific embodiments shown in the drawings and described in detail in the specification are only The exemplary description of the novel principles is not intended to limit the invention to what is described herein.

Thus, a feature indicated in this specification will be used to illustrate one of the features of one embodiment of the present invention, and is not intended to suggest that each embodiment of the present invention must have the features described. Moreover, it should be noted that this specification describes a number of features. Although certain features may be combined together to illustrate possible system designs, these features are also applicable to other combinations not explicitly illustrated. Accordingly, the illustrated combinations are not intended to be limiting, unless otherwise indicated.

In the embodiments shown in the figures, the indications of the directions (such as up, down, left, right, front and back) are used to explain that the structure and motion of the various elements of the present invention are not absolute but relative. These descriptions are suitable when the elements are in the positions shown in the figures. If the description of the position of these elements changes, the indications of these directions also change accordingly.

The preferred embodiments of the present invention are further elaborated below in conjunction with the drawings of the specification.

Referring to FIG. 1 to FIG. 4, the present invention proposes a USB Type-C waterproof type electrical connector 10, which is mounted on the circuit board 20 in a submerged manner.

Referring to FIG. 5 to FIG. 9 , the electrical connector 10 includes: a terminal block 1 , a shielding shell 2 sleeved on the outer periphery of the terminal block 1 , and two metal members 3 overmolded on the two metal parts A fixed casing 4 is disposed on the outer periphery of the shielding casing 2, a sealing ring 5 is injection molded on the fixing casing 4, and a waterproof rubber 6 is applied to the rear end of the fixing casing 4.

Referring to FIGS. 8 and 9, the terminal block 1 includes an insulative housing 11, a plurality of conductive terminals 12 and two reinforcing members 13. The insulative housing 11 is preferably joined to the conductive terminals 12 and the reinforcing members 13 by a plug-in molding process. The insulative housing 11 includes a base 111, a tongue 112 extending forwardly from the base 111, and a rear seat 113 located behind the base 111. The base 111 is separated from the rear seat 113 to form a glue receiving groove 114 therebetween. The base 111 and the rear seat 113 are connected only by the conductive terminals 12. The waterproof rubber 6 is filled in the glue receiving groove 114 so as to be sufficiently combined with the conductive terminal 12 exposed in the glue receiving groove 114 to prevent leakage. A terminal receiving groove 115 is formed at the rear of the rear seat 113 to protect the conductive terminal 12. The conductive terminals 12 are divided into upper and lower groups, each of which includes a plurality of signal terminals 12A at a central position, two power terminals 12B and two ground terminals 12C respectively located outside the signal terminals 12A.

Each of the conductive terminals 12 includes a pair of joint portions 121 exposed on a surface of the tongue plate 12, a welded portion 122 projecting rearwardly from the terminal block 1, and a joint between the abutting portion 121 and the welded portion 122. The fixing portion 123. The power supply terminal 12B of the conductive terminal 12 and the fixing portion 123 and the soldering portion 122 of the grounding terminal 12C are partially widened with respect to the abutting portion 121 to facilitate carrying a large current; and, the power terminal 12B and the grounding terminal 12C The fixing portions 123 are bounded along the center line (front and rear extension) of the tongue plate 112, and are respectively bent and extended laterally outward, so that the welded portions 122 of the conductive terminals 12 can be arranged in a row and mounted in a surface manner. Soldering on a row of pads 201 on the circuit board 20 (see Figures 1 and 4), without the need for a conventional front and rear two-row arrangement, facilitates compression of the overall length of the electrical connector 10. Further, the soldering portions 122 of the conductive terminals 12 are housed in the terminal receiving grooves 115, and it is possible to avoid accidental collision.

Each of the reinforcing members 13 includes a main body 131 embedded in the tongue plate 12 and a soldering leg 132 extending rearward from the main body 131. The body 131 has a side edge 135 exposed to the tongue 112 of the insulative housing 11 for mating with another mating connector (not shown) to ground it.

Referring to FIG. 9, the shielding housing 2 includes a main housing 21, two extending portions 22 extending rearward from opposite sides of the main housing 21, and extending downwardly from the two extending portions 22, respectively. Two soldering feet 23. The main casing 21 has an annular shape and penetrates back and forth, and surrounds and forms an accommodating cavity 29. Referring to FIG. 5, when the shielding case 2 is sleeved and fixed on the terminal block 1, the two extending portions 22 are just attached to the two outer sides of the rear seat 113, which is beneficial to protect the rear seat 113 and prevent the rear seat 113 from being rearward. The left and right displacement of the seat 113 relative to the base 111 causes the conductive terminal 12 to be damaged. Referring to Figure 3, it can be seen that the tongue 12 of the terminal block 1 projects forwardly from the shield case 2.

Referring to FIG. 8, each of the metal members 3 is integrally stamped from a metal sheet, and each of the metal members 3 includes a fixing portion 31, an extending portion 32 bent and extended by the fixing portion 31, and the extending portion. 32. A soldering leg 33 extending further downwardly, the soldering leg 33 can be soldered to the circuit board 20 to enhance the bonding strength between the fixed housing 4 and the circuit board 20. The fixing portion 31 is provided with a fixing hole 36. A laser solder joint 37 is formed on the extending portion 32 for soldering the extending portion 32 to the extending portion 22 of the shielding case 2, so that the structural strength can be enhanced to prevent the electrical connector 10 from being deflected left and right. . Specifically, the fixing portion 31 includes a horizontal plate 311 and a vertical plate 312 which is bent upward from the inner side of the horizontal plate 311. The fixing hole 36 is opened on the horizontal plate 311. The vertical plate 312 is provided with an opening 38 in combination with the fixed housing 4. The extension 32 is bent rearwardly from the rear end of the vertical plate 312.

Referring to FIGS. 1 and 4, the extension 32 of the metal member 3 is attached to the outside of the extension 22 of the corresponding shield case 2. The soldering legs 33 of the metal member 3 are attached to the outside of the soldering legs 23 of the corresponding shield case 2. The two soldering legs 33, 23 are interposed in the same soldering hole 202 on the circuit board 20, so that the number of soldering holes 202 can be reduced.

Referring to FIG. 9, the fixed housing 4 includes a frame body 41 and two ears 42 extending outward from the two sides of the frame body 41, respectively. The frame body 41 has an annular shape and penetrates back and forth, and surrounds and forms a receiving cavity 49. The ear portion 42 is formed with a locking hole 46 penetrating up and down. The locking hole 46 is aligned with the fixing hole 36 of the metal member 3 (see FIG. 4, the locking hole 46 and the fixing hole 36 are preferably basic in size). The same two round holes are aligned with the center of the circle; it is worth mentioning that in some embodiments not shown, the fixing holes 36 of the metal member 3 may be larger or smaller than the locking holes of the fixed housing 4. 46, as long as the two are aligned up and down (or on the same vertical line), so that the lock can be correspondingly worn therein. By means of the fixing portion 31 on the metal member 3, the fixing member 4, in particular the ear portion 42, can be used to enhance the structural strength, so that when a locking member (not shown, for example, a bolt) When the electrical connector 10 is locked to a device (not shown, for example, a mobile phone), the ear 42 can have sufficient torsional strength, and is not required to be inserted into the locking hole 46 and the fixing hole 36. easily damaged.

Referring to Figure 3, the sealing ring 5 is injection molded on the stationary housing 4 using a sealing glue. The seal ring 5 projects forwardly from the fixed housing 4, and the fixed housing 4 is formed with a recess 45 corresponding to the seal ring 5 (refer to FIG. 5 in combination) to enhance its bonding force with the seal ring 5. The sealing ring 5 cooperates with the outer casing of the electronic device (not shown, such as a mobile phone case), and can well prevent external water droplets from penetrating backward into the electronic device along the joint gap between the fixed housing 4 and the outer casing of the electronic device. Inside.

Referring to FIG. 3, the waterproof adhesive 6 is coated on the rear end of the fixed casing 4, and the waterproof adhesive 6 bonds the terminal block 1, the shield case 2 and the fixed casing 4, thereby integrally sealing the receiving cavity 49. The rear end is configured to prevent external water droplets from penetrating back into the circuit board 20 along the docking chamber (ie, the common space of the receiving cavity 49 and the receiving cavity 29 in FIG. 3).

The manufacturing and assembly process of the electrical connector 10 generally includes the following steps: using the plug-in molding process to obtain the insulative housing 11 combined with the conductive terminal 12 and the reinforcing member 13, to obtain the terminal block 1; Fixing to the terminal block 1; using a plug-in molding process to obtain a fixed housing 4 combined with two metal members 3; the sealing ring 5 is injection molded on the fixed housing 4; 4 sets are disposed on the combination of the terminal block 1 and the shield case 2; finally, the waterproof glue 6 is applied to the rear end of the fixed case 4 to sufficiently seal the rear end of the receiving cavity 49.

Compared with the prior art, the electrical connector 10 of the present invention provides the fixing member 36 on the metal member 3 and the fixing housing 4 by correspondingly providing the metal member 3 at the locking hole 46 of the ear portion 42 of the fixed housing 4. The locking holes 46 are aligned to enhance the structural strength of the ear portion 42 so that when a locking member is inserted into the locking hole 46 to lock the electrical connector 10 to a device, the ear portion 42 can It has sufficient torsional strength and is not easily damaged, ensuring a secure lock.

The above is only a preferred embodiment of the present invention, and is not intended to limit the embodiments of the present invention. Those skilled in the art can make corresponding modifications or modifications in a very convenient manner according to the main idea and spirit of the present invention. The scope of protection shall be subject to the scope of protection required by the scope of application for patents.

10‧‧‧Electrical connector
20‧‧‧ boards
201‧‧‧ rows of pads
202‧‧‧ welding holes
1‧‧‧ terminal block
11‧‧‧Insulation body
111‧‧‧Base
112‧‧‧ tongue plate
113‧‧‧ Back seat
114‧‧‧Glue storage tank
115‧‧‧Terminal receiving slot
12‧‧‧Electrical terminals
12A‧‧‧Signal Terminal
12B‧‧‧Power terminal
12C‧‧‧ Grounding terminal
121‧‧‧Docking Department
122‧‧‧Welding Department
123‧‧‧Fixed Department
13‧‧‧Strength components
131‧‧‧ Subject
132‧‧‧welding feet
135‧‧‧ side edge
2‧‧‧Shield housing
21‧‧‧Main housing
22‧‧‧Extension
23‧‧‧ soldering feet
29‧‧‧容容
3‧‧‧Metal parts
31‧‧‧ Fixed Department
311‧‧‧ horizontal board
312‧‧‧ vertical board
32‧‧‧Extension
33‧‧‧ soldering feet
36‧‧‧Fixed holes
37‧‧‧Ray solder joints
38‧‧‧Opening
4‧‧‧Fixed housing
41‧‧‧ frame
42‧‧ Ears
45‧‧‧ Groove
46‧‧‧Lock hole
49‧‧‧ containment chamber
5‧‧‧ sealing ring
6‧‧‧Waterproof glue

BRIEF DESCRIPTION OF THE DRAWINGS Other features and advantages of the present invention will be apparent from the embodiments of the drawings, wherein: FIG. 1 is a perspective view of a preferred embodiment of the present invention and a circuit board; FIG. Figure 3 is a cross-sectional view taken along line BB of Figure 2; Figure 4 is a cross-sectional view of the preferred embodiment of the present invention; 5 further three-dimensional exploded view; FIG. 7 and FIG. 8 are further exploded perspective views of the two different viewing angles on the basis of FIG. 6, wherein the sealing ring and the waterproof glue have been removed; and FIG. 9 is based on FIG. Further stereo exploded view.

Claims (10)

An electrical connector includes: a terminal block including an insulative housing and a plurality of conductive terminals fixed to the insulative housing, the insulative housing including a base and a tongue extending forwardly from the base, the The conductive terminal includes a pair of joints exposed on a surface of the tongue plate and a soldering portion extending rearwardly from the insulating body; a shield housing surrounding a receiving cavity formed through the front and rear through for the terminal block Inserting therein; two metal members each having a fixing hole; and a fixing housing overmolded on the two metal members, including a frame body and two sides of the frame body Two ear portions respectively extending outwardly, each of the ear portions is provided with a locking hole, the locking hole is aligned with the fixing hole of the metal member, and the frame body surrounds a receiving cavity formed by the front and rear through, for The shield housing is inserted therein. The electrical connector of claim 1, wherein each of the metal members includes a fixing portion embedded in the fixing housing, an extension portion of the fixing housing extending rearward from the fixing portion, and further extending from the extending portion A welded foot that extends out. The electrical connector of claim 2, wherein the terminal block further includes a rear seat disposed behind the base and separated from the base, and a glue receiving groove is formed between the base and the rear seat. The base and the rear seat are only joined together by conductive terminals. The electrical connector of claim 3, wherein the shield housing comprises a main housing, two extensions extending rearwardly from opposite sides of the main housing, and further extending from each extension A soldering leg, the two extensions are respectively attached to the two outer sides of the rear seat. The electrical connector of claim 4, wherein the extensions and the soldering legs of the two metal members are respectively attached to the extension of the shielding housing and the outer side of the soldering leg, wherein the extension of the metal member is The extensions of the shield housing are correspondingly welded together. The electrical connector of claim 2, wherein the fixing portion of the metal member comprises a horizontal plate and a vertical plate bent from the horizontal plate; wherein the fixing hole is opened on the horizontal plate, The extension is bent backward by the vertical plate. The electrical connector of claim 1, wherein the fixing hole of the metal member and the locking hole of the fixing housing are two circular holes which are center-aligned and substantially equal in size. The electrical connector of any one of claims 1 to 7, wherein the soldering portions of the conductive terminals are arranged in a row. The electrical connector of claim 8, wherein the conductive terminals comprise a plurality of power terminals and a plurality of ground terminals, and the fixing portions and the soldering portions of the power terminals and the ground terminals are locally widened. The electrical connector of claim 9, wherein the fixing portions of the power terminal and the grounding terminal are bounded by a center line of the tongue plate and are respectively bent and extended outward in the lateral direction.