Electric connector with tongue piece reinforcing structure
Technical Field
The present invention relates to an electrical connector, and more particularly, to an electrical connector with a tongue reinforcement structure for preventing damage caused by improper operation of the connector during plugging.
Background
As shown in fig. 8, a conventional USB TYPE C electrical connector mainly includes a metal shielding cover 70, a package 80 having a specific structure shown in fig. 9 and 10, a tongue 81 extending from a front end surface thereof in a horizontal direction, a plurality of upper terminals 91 and a plurality of lower terminals 92 disposed in the package 80 and the tongue 81, and one ends of the upper terminals 91 and the lower terminals 92 partially exposed on the upper and lower surfaces of the tongue 81, respectively, for electrical contact.
Furthermore, as shown in fig. 10, the package 80 and the tongue 81 thereof are internally provided with a middle spacer 60, the middle spacer 60 is located between each upper terminal 91 and each lower terminal 92, the middle spacer 60 is sheet-shaped and has a wide section 61 and a narrow section 62, the narrow section 62 is adapted to be located in the tongue 81 of the package 80, one end of the narrow section 62 adjacent to the wide section 61 extends forward from two sides to form two side wings 63, and the two side wings 63 are respectively partially exposed at two sides of the tongue 81, thereby protecting two sides of the tongue 81.
According to the specification set by USB TYPE C, the USB TYPE C must have a plug tolerance of more than ten thousand times, and at the same time, the USB TYPE C must pass through a 4-axis test, however, the size of the USB TYPE C interface is only 8.3×2.5 mm, the tongue 81 is only 0.7 mm, but the 4-axis stress is most concentrated, the middle spacer 60 is used to reinforce the two sides of the tongue 81 except for isolating the upper terminal 91 and the lower terminal 92, however, the middle spacer 60 of the known USB TYPE C electrical connector is mostly formed by stamping a metal sheet, so that the side spacer 63 used as a reinforcement protection is only connected with two sides of the middle spacer 60 in a small area, and is located at two sides of the middle spacer 60 after being bent, so that the wear-resisting effect on two sides of the lifting tongue 81 is very limited, the tongue 81 is easy to be damaged after frequent plugging and pulling, and normal operation is affected.
Moreover, since the tongue 81 of the USB TYPE C connector is very thin, when the user is docked with the corresponding connector, if the insertion angle deviation is too large or the force is applied improperly, the tongue 81 may be directly damaged to affect the normal use. As described above, the conventional USB TYPE C electrical connector needs to be reinforced in terms of the strength of the tongue piece, and is thus easily damaged by improper operation during plugging, so that further investigation is needed and a viable solution is sought.
Disclosure of Invention
Therefore, the present invention is directed to an electrical connector with a tongue reinforcement structure, which can fully reinforce the tongue in a plurality of axial directions to greatly improve the insertion tolerance.
The main technical means adopted to achieve the above purpose is to make the electric connector with tongue piece reinforcement structure comprise:
a package body, which is formed with a tongue piece extending outwards on a front end surface;
An upper terminal set in the package, the upper terminal set comprising a plurality of upper terminals, one end of each upper terminal being partially exposed on the upper surface of the tongue piece;
a lower terminal set in the package, the lower terminal set comprising a plurality of lower terminals, one end of each lower terminal being partially exposed from the lower surface of the tongue piece;
the middle spacer is arranged in the packaging body and the tongue piece thereof and is arranged between the upper layer terminal group and the lower layer terminal group, and the two side edges and the front side of the middle spacer respectively form a longitudinally extending retaining wall so as to respectively form two tongue sides and a tongue tip of the tongue piece; wherein the method comprises the steps of
The middle partition plate is provided with a wide section and a narrow section, the narrow section corresponds to the tongue piece, two side edges of the narrow section respectively extend longitudinally to form a side protection wall, and the front side of the narrow section extends longitudinally to form a front protection wall;
the middle partition is formed by die casting or metal injection molding.
The invention mainly extends longitudinally on two sides and front side of the middle partition to form a protective wall, unlike the structure that the middle partition of the prior electric connector is formed by bending metal sheets only to form side wings, the invention forms continuous and thick protective walls on two sides and front side of the middle partition to form tongue sides and tongue tips of the tongue pieces respectively, thereby the tongue pieces can be fully reinforced in multiple axial directions, besides greatly improving the insertion and extraction wear resistance of the tongue pieces, the tongue pieces of the invention have a high-strength tongue tip, and even if the joint directly impacts the tongue pieces and/or the tongue tips thereof due to the deviation of the insertion angle or excessive force application during the insertion of the joint, the tongue pieces can be effectively ensured not to be damaged and maintain normal work.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present invention, and are not particularly limited. Those skilled in the art with access to the teachings of the present invention can select a variety of possible shapes and scale sizes to practice the present invention as the case may be.
Fig. 1 is an external view of a preferred embodiment of the present invention.
FIG. 2 is an exploded view of a portion of the components of a preferred embodiment of the present invention.
FIG. 3 is a side view in cross section of a preferred embodiment of the present invention.
FIG. 4 is an external view of a septum according to a preferred embodiment of the present invention.
FIG. 5 is a top plan view of a septum of a preferred embodiment of the present invention.
Fig. 6 is a partial cross-sectional view of a preferred embodiment of the present invention.
Fig. 7 is a top plan view of a preferred embodiment of the present invention.
Fig. 8 is an external view of a conventional electrical connector.
Fig. 9 is an exploded view of a portion of a known electrical connector.
Fig. 10 is a partial external view of a known electrical connector.
Detailed Description
The details of the invention will be more clearly understood in conjunction with the accompanying drawings and description of specific embodiments of the invention. The specific embodiments of the invention described herein are for purposes of illustration only and are not to be construed as limiting the invention in any way. Given the teachings of the present invention, one of ordinary skill in the related art will contemplate any possible modification based on the present invention, and such should be considered to be within the scope of the present invention.
Referring to fig. 1 and 2, the present invention includes a package 10, an upper terminal set 20, a lower terminal set 30 and a middle spacer 40; first of all, it must be specified that the person skilled in the art will understand: the electrical connector further comprises a metal shielding cover disposed outside the package body 10, but the metal shielding part is not disclosed and is not disclosed before the present invention is disclosed.
The package body 10 is made of plastic and is substantially rectangular, and a tongue piece 11 is formed by extending outwards in a horizontal direction at the center of a front end surface of the package body, wherein the tongue piece 11 is provided with a tongue front section 111 and a tongue rear section 112, and the thickness of the tongue front section 111 is smaller than that of the tongue rear section 112; as shown in fig. 2 and 3, the upper terminal set 20 is located in the package body 10 and is composed of a plurality of upper terminals 21, each upper terminal 21 has a horizontal section 211, and the horizontal section 211 is partially exposed on the upper surface of the tongue front section 111 to form a contact portion for power supply and contact; each upper terminal 21 further has a bending section 212, and the bending section 212 is partially exposed out of the package body 10 to respectively form a pin. For easy assembly, in the present embodiment, the upper terminal set 20 further includes an upper module 22, and each upper terminal 21 is disposed on the upper module 22 together, and further encapsulated in the package 10.
The lower terminal set 30 is located in the package 10 and is composed of a plurality of lower terminals 31, each lower terminal 31 has a horizontal section 311, and the horizontal section 311 is partially exposed from the lower surface of the tongue front section 111 to form a contact portion for power supply contact; each lower terminal 31 further has a bending section 312, and the bending section 312 is partially exposed out of the package body 10 to respectively form a pin. In order to facilitate assembly, the lower terminal set 30 includes a lower module 32, and the lower terminals 31 are disposed on the lower module 32 together and further encapsulated in the package 10.
Still referring to fig. 2 and 3, the middle spacer 40 is disposed in the package body 10 and the tongue 11 thereof and is vertically disposed between the upper terminal set 20 and the lower terminal set 30, and as shown in fig. 4, the body of the middle spacer 40 is in a flat plate shape, and two sides and front side thereof respectively form a longitudinally extending protection wall to respectively form two tongue sides 113 and a tongue tip 114 of the tongue 11.
As shown in fig. 4 and 5, the middle partition 40 has a wide section 41 and a narrow section 42, which is generally T-shaped in top view, the narrow section 42 corresponds to the tongue 11, two side edges of the narrow section 42 respectively extend longitudinally to form a side protection wall 43, and the front side of the narrow section 42 also extends longitudinally to form a front protection wall 44; wherein the upper and lower ends of the side wall 43 protrude from the surface and the bottom of the narrow section 42 to form an inverted T-shaped cross section, and the outer side surfaces of the side wall 43 protrude from the two sides of the tongue front section 111 to form the tongue side 113; furthermore, the side wall 43 has a height greater than that of the front wall 44.
The upper and lower ends of the front wall 44 protrude from the surface and the bottom of the narrow section 42 to form an inverted T-shaped cross section (as shown in fig. 3), and the front side of the front wall 44 is exposed from the front side of the tongue front section 111 to form the tongue tip 114.
To further enhance the structural strength of the side and front walls 43, 44, the narrow section 42 of the septum 40 is formed with a junction wall 45 between the two ends of the front wall 44 and the adjacent ends of the side walls 43, respectively, and a continuous wall is formed on the two sides and front side of the tongue front section 111, thereby enhancing the strength of the side and front walls 43, 44. The upper and lower ends of the connecting wall 45 protrude from the surface and the bottom of the narrow section 42, respectively, and the height of one end is the same as that of the side wall 43, while the height of the other end is decreased to the same height as that of the front wall 44.
As is apparent from the above description, the present invention mainly forms the two side protection walls 43 and the front protection wall 44 on the two sides and the front side of the narrow section 42 of the middle partition 40, and further forms the tongue side 113 and the tongue tip 114 of the tongue piece 11, and the middle partition 40 and the side protection walls 43 and the front protection wall 44 thereon have a large thickness to ensure the structural strength, so that the middle partition 40 is formed by die casting (DIE CASTING) or Metal Injection Molding (MIM) unlike the middle partition of the conventional electrical connector, which is usually formed by punching a metal thin material and bending.
Still referring to fig. 4, the middle spacer 40 has a pin 46 at each end of the wide section 41 to form an electrical connection, and one end of the pin 46 is exposed outside the package 10 (as shown in fig. 1).
In terms of achieving efficacy, as shown in fig. 6 and 7, the height of the side protection wall 43 is adapted to the thickness of the tongue front section 111, and the outer side surface of the side protection wall 43 is exposed at two sides of the tongue front section 111 to form the tongue side 113 thereof, and the front side surface of the front protection wall 44 is exposed at the front side of the tongue front section 111, so that the side protection wall 43 and the front protection wall 44 directly bear the impact when the connector is plugged and unplugged, and the strength of the tongue 11 can be increased in multiple axial directions. Particularly, when the joint insertion angle is deviated or the biasing force is excessive and the tongue tip 114 formed by the front retaining wall 44 directly hits the front side of the tongue front section 111, the tongue tip is secured from being damaged due to the high strength. In the case where the front retaining wall 44 and the side retaining walls 43 form a continuous retaining wall, the structural strength of the tongue piece 11 can be greatly improved in the axial direction.
The detailed explanation of the embodiments described above is only for the purpose of explaining the present invention so as to enable a better understanding of the present invention, but these descriptions should not be construed as limiting the present invention in any way, and in particular, the individual features described in the different embodiments may be arbitrarily combined with each other to constitute other embodiments, and these features should be understood as being applicable to any one embodiment, except as explicitly stated to the contrary, without being limited to only the described embodiment.