TWM482865U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a holding component.

The Chinese patent CN 201210008719.0 discloses an electrical connector comprising a metal casing, an insulative body mounted in the metal casing, a terminal fixed on the insulative body, and an insulative casing covering the metal casing; the metal casing The top wall and the bottom wall are disposed opposite to each other and are respectively connected to the left and right side walls of the top wall and the bottom wall respectively, and the insulating body comprises a base fixed in the metal shell and a tongue plate extending forward along the base; The terminal is provided with a contact portion exposed on the surface of the tongue of the insulative housing and a soldering portion extending from the insulative housing; the bottom surface of the insulative housing is fixed with a metal holder, and the metal holder is fixed on the insulative housing The fixing piece and the welding piece extending along the fixing piece from the insulating case. The metal retaining member of the prior art is embedded in the insulating housing by two upwardly extending fixing pieces to hold the metal holding member to the insulating housing, which is not convenient to assemble, and is relatively large after being welded to the circuit board. The external force is easily detached from the insulating case and the like. On the other hand, this electrical connector is in transit If the metal retaining member is inadvertently damaged, it is also difficult to replace the metal retaining member separately, and only the entire electrical connector can be disposed of. It can be seen that it is necessary to improve the existing electrical connectors.

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art mentioned above, and to provide an electrical connector, the holding component of the electrical connector can be easily assembled to the insulating housing, and the pressing is firm and not easy to fall off.

The present invention provides an electrical connector for the above technical problem, comprising: an insulating base having a main body and a tongue extending forward from the main body; and a plurality of conductive terminals fixed on the insulating base, each The conductive terminal includes a pair of joints disposed on the tongue plate and a welded portion protruding rearwardly from the body; a shielding shell sleeved on the insulating seat body and surrounding to form a pair of joint cavities The rear end is bent downward to extend two first fixing legs; an insulating housing surrounds the outer periphery of the shielding housing, the insulating housing includes a top wall, a bottom wall opposite to the top wall, and a two side wall connected between the top wall and the bottom wall; wherein the two side walls of the insulating housing are respectively provided with a first fastening portion; the electrical connector further comprises an insulation a holding member on the housing, the holding member comprising a pressing portion correspondingly pressed over the top wall of the insulating housing, two bent extension portions respectively bent downwardly from both sides of the pressing portion, and Further extending from each of the bent extensions At least one second fixing pin; are each provided with a second retaining portion extending over the two bent portions, wherein two second retaining portion of the holding member corresponds to the two first retaining portion of the insulating housing A snap fit to secure the retaining element to the insulative housing.

The second fastening portion of the holding member is a fastening hole that is closed on the periphery of the bending extension.

The bottom ends of each of the bending extensions extend downwardly from the two second fixing legs, and the second fixing feet are located in front of the first fixing legs.

The insulating housing is integrally molded from a rigid plastic, and the first fastening portion is a block protrudingly disposed on a sidewall of the insulating housing, and the clamping block can be correspondingly engaged with the holding component. The second card is in the middle.

The block includes a guiding portion and a holding portion located below the guiding portion, the guiding portion having a guiding inclined surface extending obliquely downward from an outer side surface of the side wall of the insulating housing.

The retaining portion of the block has a vertical surface extending vertically downward from the bottom end of the guiding ramp and a horizontal portion extending from the bottom end of the vertical surface toward the sidewall of the insulating housing a clamping surface, wherein a lower end edge of the second fastening portion is in a snap fit with the clamping surface.

The top wall, the bottom wall and the two side walls of the insulating housing enclose a receiving cavity extending through the front and the rear; the electrical connector further includes a sealing member for sealing the rear portion of the receiving cavity.

The sealing element is formed by solidification of a waterproof glue.

A front end outer ring of the insulating housing is provided with a receiving groove; the electrical connector further includes a sealing ring disposed in the receiving groove.

The sealing ring includes a base portion and a protruding portion protruding from the base portion; the front end of the insulating housing is spaced apart from the outer surface of the insulating housing a first convex ring and one The second convex ring, the first convex ring and the second convex ring enclose the receiving groove with an outer surface of the insulating housing.

Compared with the prior art, the electrical connector of the present invention is configured to snap-fit the second fastening portion of the holding member with the first fastening portion on both sides of the insulating housing, and to make the pressing portion of the holding member from the insulating housing Pressing the insulating housing above, so that the holding member can be easily assembled to the insulating housing, pressing firmly and not easily falling off; in addition, by providing at least two second fixing legs on the holding member and soldering the holding member to the circuit On the plate, the pressing effect of the holding member on the insulating case from above can be further enhanced.

10‧‧‧Electrical connector

45‧‧‧ Sealing Ring Installation Department

1‧‧‧Insulated body

441‧‧‧ Guidance Department

11‧‧‧ Subject

442‧‧‧Cars Department

12‧‧ ‧ tongue

451‧‧‧First convex ring

13‧‧‧Flange

452‧‧‧second convex ring

2‧‧‧Electrical terminals

453‧‧‧ Reception trough

21‧‧‧Docking Department

4411‧‧‧ guiding bevel

22‧‧‧Weld Department

4421‧‧‧Vertical surface

3‧‧‧Shaded housing

4422‧‧‧ card holding surface

31‧‧‧ top wall

49‧‧‧ containment chamber

32‧‧‧ side wall

5‧‧‧Retaining components

33‧‧‧ bottom wall

51‧‧‧Depression

34‧‧‧First fixed foot

52‧‧‧Bend extension

331‧‧‧ joint seam

53‧‧‧Second Carding Department

36‧‧‧ docking chamber

54‧‧‧Second fixed foot

4‧‧‧Insulated housing

6‧‧‧Sealing components

41‧‧‧ top wall

7‧‧‧ sealing ring

42‧‧‧ bottom wall

71‧‧‧ base

43‧‧‧ side wall

72‧‧‧ protruding parts

431‧‧‧Outside surface

73‧‧‧Flange

44‧‧‧First Carding Department

20‧‧‧ boards

Other features and effects of the present invention will be apparent from the detailed description of the preferred embodiments of the drawings.

1 and 2 are perspective views of two different perspective views of a preferred embodiment of the electrical connector of the present invention and a circuit board.

3 is an exploded perspective view of a preferred embodiment of the electrical connector of the present invention.

4 is a further exploded perspective view of a preferred embodiment of the electrical connector of the present invention.

Figure 5 is a further exploded perspective view of a preferred embodiment of the electrical connector of the present invention.

6 and 7 are exploded perspective views of still further two different perspectives of a preferred embodiment of the electrical connector of the present invention.

A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. Further elaborated.

Referring to Figures 1 and 2, the present invention provides an electrical connector 10, the preferred embodiment of which is a Micro-USB connector having a waterproof construction. The electrical connector 10 generally includes an insulating base 1 , a plurality of conductive terminals 2 fixed on the insulating base 1 , and a shielding shell 3 sleeved on the outer periphery of the insulating base 1 and surrounding the shielding shell An insulating housing 4 on the outer periphery of the body 3, a holding member 5 fixed above the insulating housing 4, a sealing member 6 disposed at the rear end of the insulating housing 4, and a peripheral portion of the front end of the insulating housing 4 A sealing ring 7. The electrical connector 10 can be soldered to a circuit board 20 to correspondingly plug an electrical connector plug (not shown).

Referring to Figures 6 and 7, the insulating base 1 is integrally molded. It comprises a main body 11, a tongue 12 extending forward from the main body 11, and a flange 13 extending from the rear end of the main body 11 in two directions.

Referring to Figure 6, these conductive terminals 2 are stamped and formed from a metal material. These conductive terminals 2 are preferably fixed to the insulating housing 1 by insert molding. Each of the conductive terminals 2 includes a pair of joint portions 21 mounted on the tongue plate 12, a welded portion 22 projecting rearwardly from the body 11, and a fixing portion (not shown) embedded in the body 11.

Referring to Figures 6 and 7, the shield housing 3 is stamped and formed from a metal material. The shielding shell 3 includes a top wall 31, two side walls 32 bent downwardly from opposite sides of the top wall 31, and a bottom portion having a joint seam 331 extending from opposite ends of the two side walls 32. Wall 33, and by The rear ends of the two side walls 32 are respectively bent back and downwardly to extend the two first fixing legs 34. The two first fixing legs 34 can be soldered to the circuit board 20 for grounding and preventing the soldering portion 22 of the conductive terminal 2 from being desoldered. The shielding case 3 surrounds the outer periphery of the tongue plate 12 of the insulating base 1 and correspondingly forms a pair of cavities 36.

Referring to Figures 4 and 5, the insulative housing 4 is preferably integrally molded from a rigid plastic. The insulating housing 4 has a top wall 41, a bottom wall 42 opposite the top wall 41, and two side walls 43 connected between the top wall 41 and the bottom wall 42. Each of the two side walls 43 is provided with a first fastening portion 44. A seal ring mounting portion 45 is provided on the outer peripheral ring of the front end of the insulating housing 4. The top wall 41, the bottom wall 42 and the two side walls 43 enclose a receiving cavity 49 extending through the front and the rear. Specifically, in the preferred embodiment, each of the first fastening portions 44 is a block that protrudes outwardly from the side wall 43 of the insulating housing 4. More specifically, the block includes a guiding portion 441 and a catching portion 442 located below the guiding portion 441. The guiding portion 441 has a guiding slope 4411 extending obliquely downward from the outer side surface 431 of the side wall 43 of the insulating housing 4. The retaining portion 442 has a vertical surface 4421 extending vertically downward from the bottom end of the guiding ramp 4411 and horizontally from the bottom end of the vertical surface 4421 toward the side wall 43 of the insulating housing 4. A latching surface 4422 extends from the outer surface 431. Specifically, the sealing ring mounting portion 45 includes a first protruding ring 451 and a second protruding ring 452 that are outwardly protruded from the outer surface 431 of the insulating housing 4 at a distance from each other. A convex ring 451 and a second convex ring 452 enclose a receiving groove 453 with the outer surface 431 of the insulating housing 4.

Referring to Figures 3 to 5, the holding member 5 is formed by stamping and bending a metal material. The holding member 5 mainly includes a pressing portion 51 correspondingly abutting against the top wall 41 of the insulating housing 4, and two bending extension portions 52 respectively bent downwardly from opposite sides of the pressing portion 51, respectively Four second fixing legs 54 extending further downwardly from the two bending extensions 52 (in some embodiments, may be reduced to two second fixing feet 54, ie each bending extension 52 extends downwardly A second fixing leg 54) is provided. Each of the two bent extensions 52 is provided with a second fastening portion 53. Specifically to the preferred embodiment, the pressing portion 51 is a horizontal plate. Each of the bent extensions 52 is a vertical plate that is bent downward from one side of the pressing portion 51. Each of the second fastening portions 53 is a locking hole that is disposed on the periphery of the bending extension portion 52. The two second fastening portions 53 and the two first cards on the insulating housing 4 respectively The solid portion 44 is snap-fitted to secure the holding member 5 to the insulative housing 4. Specifically, in the preferred embodiment, the holding surface 4422 of the insulating housing 4 is abutted against the lower end edge of the fixing hole, which can effectively prevent the holding member 5 from coming out upward. The bottom ends of each of the bending extensions 52 extend downwardly from the two second fixing legs 54 which are located in front of the corresponding first fixing legs 34 of the shielding housing 3. When the electrical connector 10 is soldered to the circuit board 20, the second fixing legs 54 will be soldered to the soldering holes of the circuit board 20, and if the electrical connector 10 is connected to another electrical connector plug, it is subjected to an external force. The pressing portion 51 will press the insulating housing 4 from above to prevent it from being shaken. In this case, the external force is insufficient to allow the second fixing leg 54 to be detached from the circuit board 20, and the holding member 5 can be guaranteed. Effective suppression of the electrical connector 10 without the prior art There is a concern that the metal holder has a downward detachment.

Referring to FIG. 5 to FIG. 7 , the sealing member 6 is preferably solidified by a waterproof adhesive applied to the rear of the insulating base 1 (in other embodiments, a sealing cover can also be injection molded), which is from the rear. The insulating housing 4 is integrated to seal all the matching gaps at the rear of the receiving cavity 49, thereby effectively preventing external water droplets from entering the electronic device used in conjunction with the electrical connector 10 via the receiving cavity 49 of the electrical connector 10. (not shown, such as a cell phone) inside.

Referring to Figure 4, the sealing ring 7 is integrally formed from an elastic plastic material. The seal ring 7 has an annular shape and has a base portion 71 that can be engaged with the receiving groove 453 of the insulating housing 4 and a protruding portion 72 that protrudes outward from the base portion 71. Specifically to the preferred embodiment, the projection 72 includes two flanges 73 that are parallel to each other and spaced apart from each other. The sealing ring 7 cooperates with an opening (not shown) reserved for the electrical connector 10 on the electronic device to prevent external water droplets from entering the electronic device from the matching gap between the electrical connector 10 and the opening of the electronic device. Internal to achieve better waterproofing.

The assembly process of the electrical connector 10 of the present invention generally comprises: firstly fixing the conductive terminals 2 to the insulating base 1 by means of insert molding; and then combining the conductive terminals 2 and the insulating base 1 from the back The front cover is inserted into the shielding case 3 until the flange 13 abuts against the rear end of the shielding case 3; then, the shielding case 3 and the insulating base 1 are inserted into the insulating case from the rear to the front. Inside the body 4; then, a layer of waterproof glue is applied on the back of the shielding shell 3 and the insulating seat body 1, and the rear portion of the receiving cavity 49 is sealed. The sealing member 6 is formed; then the holding member 5 is pressed down from the upper side of the insulating housing 4 to the insulating housing 4, and the holding member 5 is provided on the first fastening portion 44. The second fastening portion 53 will be smoothly snapped onto the first fastening portion 44. When the assembly is completed, the lower end edge of the second fastening portion 53 will abut against the clamping surface 4422 of the first fastening portion 44. Therefore, it is impossible to reversely disengage; finally, the sealing of the sealing ring 7 into the receiving groove 453 at the front end of the insulating housing 4 completes the assembly of the electrical connector 10. In addition, if it is necessary to separately remove and replace the holding member 5 of the electrical connector 10, only the horizontally biasing force is required to outwardly open the second fixing leg 54, so that the lower end edge of the second fastening portion 53 and the card of the first fastening portion 44 are provided. The holding surface 4422 is disengaged, and the holding member 5 can be easily detached by pushing the holding member 5 upward.

The advantageous effects of the electrical connector 10 of the present invention include: by correspondingly engaging the second fastening portion 53 of the holding member 5 with the first fastening portion 44 on both sides of the insulating housing 4, The insulating housing 4 is pressed from above the insulating housing 4 by the pressing portion 51 on the holding member 5. This holding member 5 is easy to assemble and disassemble, is firmly pressed and is not easily peeled off from the insulating housing 4; The at least two second fixing legs 54 are disposed to solder the holding member 5 to the circuit board 20, and the pressing effect of the holding member 5 on the insulating housing 4 from above can be further enhanced.

Therefore, the above description 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 easily adapt the modifications or modifications according to the main idea and spirit of the present invention. The scope of the new protection shall be subject to the scope of protection required by the scope of the patent application.

10‧‧‧Electrical connector

52‧‧‧Bend extension

2‧‧‧Electrical terminals

53‧‧‧Second Carding Department

3‧‧‧Shaded housing

54‧‧‧Second fixed foot

4‧‧‧Insulated housing

6‧‧‧Sealing components

44‧‧‧First Carding Department

7‧‧‧ sealing ring

51‧‧‧Depression

20‧‧‧ boards

Claims (10)

An electrical connector includes: an insulating body having a body and a tongue extending forwardly from the body; a plurality of conductive terminals fixed on the insulating base, each conductive terminal including a tongue disposed on the tongue a pair of joints on the plate and a welded portion protruding rearwardly from the main body; a shielding shell sleeved on the insulating base body and surrounding to form a pair of joint cavities, the rear end of the shielding shell being bent downward Extending two first fixing legs; an insulating housing surrounding the outer periphery of the shielding housing, the insulating housing including a top wall, a bottom wall opposite to the top wall, and the top wall and the Two sidewalls between the bottom walls; a first fastening portion is disposed on each of the two sidewalls of the insulating housing; the electrical connector further includes a holding component mounted on the insulating housing, the holding component a pressing portion corresponding to pressing on a top wall of the insulating housing, two bent extending portions respectively bent downwardly from two sides of the pressing portion, and a further extending portion extending from each of the bent extending portions At least one second fixing leg; the two bending extensions a second fastening portion is disposed, wherein the two second fastening portions of the holding component are correspondingly engaged with the two first fastening portions of the insulating housing, thereby fixing the holding component to the insulating housing on. The electrical connector of claim 1, wherein the second fastening portion of the holding member is a locking hole that is closed on a periphery of the bending extension. The electrical connector of claim 2, wherein the bottom end of each of the bending extensions extends downwardly from the two second fixing legs, the second fixing feet being located in front of the first fixing leg. The electrical connector of claim 1, 2 or 3, wherein the insulating housing is integrally molded from a rigid plastic, the first fastening portion being outwardly projectingly disposed on the insulating housing A card block on the side wall, the card block being capable of being inserted into the second fastening portion of the holding member. The electrical connector of claim 4, wherein the block includes a guiding portion and a retaining portion located below the guiding portion, the guiding portion having an outer side surface of the side wall of the insulating housing A guiding slope that extends obliquely downward and outward. The electrical connector of claim 5, wherein the latching portion of the latch has a vertical surface extending vertically downward from a bottom end of the guiding ramp and a bottom end of the vertical surface A clamping surface extending horizontally toward the sidewall of the insulating housing, wherein a lower end edge of the second fastening portion is in a snap fit with the clamping surface. The electrical connector of claim 1, 2 or 3, wherein the top wall, the bottom wall and the two side walls of the insulating housing enclose a receiving cavity extending through the front and the rear; the electrical connector further comprises a sealing a sealing element at the rear of the receiving cavity. The electrical connector of claim 7, wherein the sealing member is formed by solidification of a waterproof glue. The electrical connector of claim 1, wherein the outer peripheral ring of the insulative housing is provided with a receiving slot; the electrical connector further includes a sealing ring disposed in the receiving slot. The electrical connector of claim 9, wherein the sealing ring includes a base portion that fits the receiving groove and a protrusion that protrudes outward from the base portion a first protruding ring and a second protruding ring protruding outwardly from an outer surface of the insulating housing, the first protruding ring and the second protruding ring are spaced apart from the front end of the insulating housing The outer surface of the insulating housing encloses the receiving groove.