TWM499692U - Improved structure for electrical connector - Google Patents

Description

Structural improvement of electrical connectors

The present invention provides a structural improvement of an electrical connector, in particular, the two sides of the bottom surface of the insulating seat are recessed with a holding groove, and the fastening piece of the side plate at the two sides of the inner casing is fastened to the card. In the holding groove, the end portion of the fastening piece is not protruded higher than the bottom surface of the tongue plate, so as to prevent the short circuit of the terminal group and the inner casing from being short-circuited when the elastic terminal of the plug is inserted.

According to the rapid development of electronic technology, the type of computer has evolved from a desktop computer to a small, portable notebook computer, and it is widely used in various corners of the society when users want to transmit data signals or When connecting with other peripheral devices, the so-called peripheral device interface is required, and the peripheral device interface on the market is the most common and widely used by the public. The general-purpose serial bus (USB) is still used as the mainstream, and USB support is used. Hot-swappable features are plug-and-play and easier to use.

Furthermore, as electronic devices such as notebook computers and ultra-thin notebook computers tend to be light, thin, short, and small, in order to reduce the size of the electronic device, the electrical connectors on the internal circuit board of the electronic device are required. Small and precise, the overall structural strength needs to be strengthened, and the universal serial bus connector is also upgraded from the early specification type (USB2.0) to the higher-order specification (USB3.0), and its practical functions are enhanced. The scope of application, but because the conventional electrical connector is in compliance with the USB size specification, its width and length are fixed and cannot be reduced. If the tongue size of the electrical connector is reduced, it will result in the terminal group being easily withdrawn from the tongue or the structural damage.

In order to solve the problem caused by the conventional electrical connector, the applicant of the present application applied for a new type of patent for the improvement of the structure of the electrical connector. Please refer to the figure as shown in the eighth figure. It can be clearly seen from the figure that it is a conventional electric power. The front view of the connector is coupled to a base A1 of the insulating base A, and has a plurality of terminal slots A22 for positioning the contact portion A31 of the terminal set A3 at the bottom surface A21 of the tongue A2. a plurality of holes A23 at a distance in front of the terminal slot A22, and abutting surface A311 exposed at the hole A23 is formed at the bottom surface of the contact portion A31 of the upper terminal of the terminal group A3, and the outer cover of the insulating base A is positioned with the shielding shell The outer casing B1 is assembled on the outer casing B1, and the inner casing B2 extending into the insertion space B10 is assembled on the outer casing B1, and the inner casing B2 is fastened by the end B221 of the hook B22 of the two side plates B21. In the slot A11 of the base A1, the inner casing B2 can be covered on the tongue plate A2, and the length of the shield shell B can be reduced by the outer casing B1, and the length of the insulating seat A can be reduced. Structural strength.

However, with the increase in the functionality of the electronic device and the development of higher-order applications, and the increasing miniaturization of electrical connectors, the number of terminal sets A3 on the insulating base A is also increased, and the contact of the terminal group A3 is increased. The spacing of the portion A31 is particularly narrow and dense, so that when the plug of the external electrical connector is inserted into the plug-in space B10 of the outer casing B1, the elastic terminal of the plug is easily pushed by the tongue A2 or other external force factors during the insertion of the elastic terminal of the plug. The impact occurs, and the hook B22 of the inner casing B2 is held in the notch A11 of the base A1 and the end B221 is slightly protruded from the bottom surface A21 of the tongue A2, which easily causes the elastic terminal to be simultaneously Produced on the hook B22 that contacts the contact portion A31 of the terminal group A3 and the inner casing B2 Short-circuit phenomenon, which affects the stability of the overall signal transmission, and may even occur in the case of malfunction or system damage. If it is possible to resist the short circuit caused by the elastic terminal to contact the hook B22 contacting the inner casing B2, Improvements are made to match the actual application, which is the key to research and improvement for those in this industry.

Therefore, in view of the above-mentioned problems and shortcomings, the new creators have collected such relevant materials through various evaluations and considerations, and have used the trial and modification of many years of R&D experience in this industry to design such electrical connectors. A new type of structural improvement was born.

The main purpose of the present invention is that the contact portion of the terminal group is positioned on the tongue plate above the base of the insulating base body, and the holding groove is recessed on both sides of the front bottom surface of the tongue plate, and the outer portion of the insulating seat body is The shielded shielding shell comprises an outer casing body and an inner casing, and the inner casing is a socket space located inside the outer casing body and is positioned on the tongue plate, and is at the bottom side of the side plate at both sides of the inner casing The fastening piece fastened in the holding groove is bent inwardly, and the insulating seat body is designed by using the stepped retaining groove structure of the tongue plate, which can effectively reduce the need for the inner casing to be assembled and assembled on the tongue plate. The thickness does not affect the overall structural strength, and the end portion of the fastening piece is fitted with the holding groove so as not to protrude above the bottom surface of the tongue plate, so as to prevent the elastic terminal of the external electrical connector plug from being inserted during the process. The external force affects the short circuit, the wrong action or the system damage caused by the contact between the contact portion of the terminal block and the inner casing, and the stability of the overall signal transmission is ensured.

The secondary purpose of the present invention is that the upper part of the base of the insulating base is a plurality of positioning grooves which are arranged in the upper and lower layers to be positioned for the terminal group, and a plurality of positioning grooves corresponding to the positioning grooves are provided at the bottom surface of the tongue plate. a plurality of holes at a distance between the terminal slot and the front of the terminal slot, and each of the latching grooves of the tongue plate is formed with a downwardly protruding stop wall adjacent to the two outer holes, and the lower row of the terminal group The contact portion of the terminal is worn through the bottom surface of the positioning groove, and the bottom surface of the contact portion of the upper row of terminals is formed with an abutting surface exposed at the hole, so that the contact wall of the holding groove and the contact portion of the terminal group can be docked The surface forms an isolation to prevent the elastic terminal of the plug from crossing the stopper wall while abutting against the contact portion of the contact portion of the terminal group and the fastening piece of the inner casing to cause a short circuit.

1‧‧‧Insulated body

11‧‧‧Base

111‧‧‧ positioning slot

12‧‧ ‧ tongue

120‧‧‧ accommodating space

121‧‧‧ bottom

122‧‧‧Terminal slot

123‧‧‧ hole

124‧‧‧ card slot

1241‧‧‧stop wall

125‧‧‧ buckle groove

13‧‧‧Terminal group

131‧‧‧Contacts

1311‧‧‧ docking surface

132‧‧‧Welding Department

2‧‧‧Shield housing

21‧‧‧Outer casing

210‧‧‧Dock space

211‧‧‧Connecting Department

212‧‧‧Resistance Department

2121‧‧‧ bumps

2122‧‧‧Shrap

22‧‧‧ inner casing

220‧‧‧ wearing space

221‧‧‧ edge board

222‧‧‧ buckle

2221‧‧‧End

223‧‧‧Glossy buckle

224‧‧‧Bounce arm

3‧‧‧Electrical connector

31‧‧‧ plug

311‧‧‧ flat terminal

312‧‧‧Flexible terminal

32‧‧‧Shell

321‧‧‧ buttonhole

A‧‧‧Insulated body

A1‧‧‧ base

A11‧‧‧ Missing slot

A2‧‧‧ tongue plate

A21‧‧‧ bottom

A22‧‧‧Terminal slot

A23‧‧‧ hole

A3‧‧‧Terminal group

A31‧‧‧Contacts

A311‧‧‧ docking surface

B‧‧‧Shield housing

B1‧‧‧ outer casing

B10‧‧‧ docking space

B2‧‧‧ inner casing

B21‧‧‧ side panel

B22‧‧‧ card hook

B221‧‧‧End

The first picture is a three-dimensional appearance of the creation.

The second picture is a three-dimensional exploded view of the creation.

The third figure is a three-dimensional exploded view of another perspective of the creation.

The fourth picture is the front view of the creation.

The fifth figure is a side cross-sectional view of the creation.

Figure 6 is a side cross-sectional view of the preferred embodiment of the present invention prior to use.

Figure 7 is a side cross-sectional view of the preferred embodiment of the present invention.

Figure 8 is a front view of a conventional electrical connector.

In order to achieve the above objectives and effects, the technical means and its construction adopted in the present invention are described in detail in the preferred embodiment of the present invention, and the structure and function are as follows.

Please refer to the first, second, third, fourth and fifth figures, which are respectively the three-dimensional appearance drawing, the three-dimensional exploded view, the three-dimensional exploded view, the front view and the side sectional view of the other perspective. It is clear that the present invention includes an insulating base 1 and a shielded casing 2, so the main components and features of the present case are detailed as follows: The insulating base 1 has a base 11 and a tongue 12 is disposed above the base 11. The base 11 and the tongue 12 can be integrally formed or separately assembled. When the tongue plate 12 is exemplified by a separate structure, a plurality of positioning grooves 111 are arranged in the upper and lower layers of the pedestal 11 , and an accommodating space 120 into which the pedestal 11 is embedded is formed in the tongue plate 12 . The bottom surface 121 of the tongue plate 12 is provided with a plurality of terminal slots 122 corresponding to the positioning slots 111, and a plurality of holes 123 are formed at a distance in front of the terminal slots 122 to form a misalignment with the terminal slots 122, and the bottom surface of the tongue plate 12 is provided. The second side of the 121 is a recessed retaining groove 124, and a retaining wall 1241 is formed at the outer side of the retaining groove 124 adjacent to the outer outer hole 123. The two sides of the 12 are longitudinally sectioned with a buckle groove 125 connected to the holding groove 124.

Moreover, the terminal slots 13 of the positioning slots 111 or the tongue plates 12 of the base 11 are positioned with the terminal group 13 , wherein the four terminals of the lower row of the terminal group 13 are in accordance with the USB 2.0 specification, and each of the upper rows of five The root terminal and the four terminals of the lower row are in conformity with the USB3.0 specification, and the terminal portion 13 has a contact portion 131 at one side of each terminal, and is formed at the bottom surface of the contact portion 131 of the upper five terminals. The surface 1311 is provided with a soldering portion 132 at the other side of the contact portion 131. However, in practical applications, only the bottom row of four terminals conforming to the USB 2.0 specification may be provided, and the base 11 may be provided. The front portion is pushed into position by the opening of the receiving space 120 at the rear of the tongue plate 12, and the terminal contact portions 131 of the lower row of the terminal group 13 are pierced through the bottom surface of the positioning groove 111 of the base 11, and the terminals of the upper row are The contact portion 131 is exposed by the flat abutting surface 1311 at the hole 123, and the soldering portion 132 of each terminal is positioned at the rear of the base 11 and soldered to a circuit board (not shown). Electrical connection.

The shielding case 2 includes an outer casing 21 and an inner casing 22, and a socket space 210 is formed inside the outer casing 21, and at least one protruding connecting portion 211 is reversely bent at a rear portion of the outer casing 21. Further, the inner casing 22 extends in the horizontal direction of the insertion space 210. The inner casing 22 can also be assembled to the outer casing 21 by means of assembly; and the outer casing 21 is inserted. The inner wall surface of the space 210 is provided with a plurality of protruding resisting portions 212, and the resisting portion 212 is convex 2121 or the elastic piece 2122, and the inner casing 22 has a wearing space 220 inside, and the inner casing 22 is A side plate 221 is formed on the side of the side plate 221, and a buckle piece 222 is bent inwardly from the bottom side of the front side plate 221, and the edge plate 221 is respectively provided with a convex buckle 223 on the surface thereof. A floating arm 224 is provided on both sides of the surface of the casing 22.

When the insulating base 1 and the shielding case 2 are assembled, the tongue 12 of the insulating seat 1 is first aligned with the wearing space 220 of the inner casing 22, and pushed to the base 11 toward the outer casing 21. When the lateral displacement is pushed into the position, the tongue 12 can be inserted into the wearing space 220 of the inner casing 22, and the corresponding piece is fastened by the fastening piece 222 at the front side of the front side of the two side plates 221 to the tongue plate 12. The latch 223 on the surface of each of the side plates 221 is forwardly held in the buckle groove 125 at the side of the tongue plate 12, and the connecting portion 211 at the rear of the outer casing 21 is embedded in the tongue plate. 12 corresponding to the embedded groove (not shown), thereby achieving the structure is stable, easy to assemble and secure positioning.

Please refer to the sixth and seventh figures for the side view of the preferred embodiment of the present invention and the side cross-sectional view after use. It can be clearly seen from the figure that the electrical connector of the present invention is clearly seen. It can be applied to a computer mainframe, a notebook computer, an ultra-thin notebook computer or other electronic device, and the base 11 of the insulating base 1 and the outer casing 21 of the shield case 2 are broken. The manner of the board is located on a circuit board (not shown) of the electronic device, and the soldering portions 132 of each terminal group 13 are respectively positioned in corresponding contacts (such as through holes or jacks) on the circuit board, and then the holes are used. (Through Hole) or Surface Adhesion Technology (SMT) soldering is firmly integrated into one and forms a good electrical connection.

The insulating base 1 of the present invention can be bent and has a connecting portion 211 at the rear of the outer casing 21 and the connecting space 210 facing the outer casing 21 under the condition that the standard size of the width is constant. The inner casing 22 is disposed on the tongue plate 12 so as to effectively reduce the length dimension of the shielding casing 2, and the outer casing 21 and the inner casing 22 are integrally formed to simplify the assembly process and reduce the height. The thinning can also effectively reduce the occupied space to meet the design requirements of light and thin products, simplify the circuit layout on the circuit board and save the labor and cost of assembly, and also utilize the inner casing 22 of the shielding case 2 The cover is positioned on the tongue 12 to improve the overall structural strength of the length of the insulating base 1 after being reduced.

When the present invention is used, the external electrical connector 3 is inserted into the insertion space 210 of the shielding case 2, and the plurality of flat terminals 311 and the elastic terminals 312 which are placed on the plug 31 are respectively respectively resisted. An electrical connection is formed on each of the contact portions 131 of the terminal group 13. The insulating base 1 can be designed by using the retaining grooves 124 at the front sides of the bottom surface 121 of the tongue plate 12 so that the inner casing 22 is in front of the two side plates 221 The end portion 2221 of the fastening piece 222 at the bottom side extends into and is retained in the holding groove 124 to effectively reduce the thickness required for the inner casing 22 to be assembled on the tongue plate 12 without affecting the overall structural strength. The end portion 2221 of the fastening piece 222 is matched with the holding groove 124 so as not to protrude above the bottom surface 121 of the tongue plate 12, and the stopper wall 1241 of the holding groove 124 and the terminal group 13 are in contact with each other. The mating face 1311 forms an isolation to block the resilient terminal 312 of the plug 31. The retaining wall 1241 is pressed against the fastening piece 222 of the inner casing 22, thereby preventing the elastic terminal 312 of the plug 31 from being affected by an external force while being in contact with the terminal group 13 during the insertion of the elastic terminal 312 of the plug 31. A short circuit, a wrong action, or a system damage occurs on the abutting surface 1311 of the portion 131 and the fastening piece 222 of the inner casing 22.

During the insertion process of the plug 31, the outer casing 32 covered by the plug 31 is elastically deformed against the elastic arm 224 of the inner casing 22, and is resisted by the inner side wall surface of the outer casing 21. The protrusion 212 is resisted by the protrusion 2121 or the elastic piece 2122 on the outer casing 32, and after the plug 31 is inserted into the positioning, the elastic arm 224 can be fastened in the buckle hole 321 of the outer casing 32 through the process of elastic deformation and resetting. The positioning of the electrical connector 3 and the insulating housing 1 and the shielding housing 2 are in a stable electrical connection state, and the distance between the inner housing 22 and the terminal group 13 positioned inside the tongue plate 12 is closer and matched. The outer casing 21 forms a double shielding function to effectively suppress or filter out electromagnetic interference (EMI) and crosstalk interference generated during signal transmission, thereby further stabilizing the overall signal transmission quality.

The above detailed description is intended to illustrate a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.

In summary, the structure of the above-mentioned electrical connector is improved to achieve its efficacy and purpose. Therefore, the creation is a practical and excellent creation, which is in line with the application requirements of the new patent, and the application is made according to law. The trial committee will grant this case as soon as possible to protect the hard work of the new creators. If there is any doubt in the bureau, please do not hesitate to give instructions. The new creators will try their best to cooperate with them.

1‧‧‧Insulated body

11‧‧‧Base

111‧‧‧ positioning slot

12‧‧ ‧ tongue

121‧‧‧ bottom

123‧‧‧ hole

124‧‧‧ card slot

1241‧‧‧stop wall

13‧‧‧Terminal group

131‧‧‧Contacts

1311‧‧‧ docking surface

2‧‧‧Shield housing

21‧‧‧Outer casing

210‧‧‧Dock space

212‧‧‧Resistance Department

2121‧‧‧ bumps

2122‧‧‧Shrap

22‧‧‧ inner casing

221‧‧‧ edge board

222‧‧‧ buckle

2221‧‧‧End

224‧‧‧Bounce arm

Claims (8)

The structural improvement of an electrical connector includes an insulating base body and a shielding shell, and the insulating base body has a tongue plate at a position above the base and a contact at a side of the terminal group on the tongue plate. And the outer cover of the insulating base is covered with a shielding shell, and the improvement is that the two sides of the front bottom surface of the insulating seat body are recessed with a holding groove, and the shielding shell comprises an outer casing and an inner casing And a plug-in space for inserting a plug of the predetermined electrical connector into the electrical connection between the terminal and the terminal assembly, and the inner casing is located in the insertion space of the outer casing and positioned on the tongue plate. And a side plate is formed at two sides of the inner casing, and the bottom side of the two side plates is bent inwardly to be buckled in the holding groove and the end portion is higher than the bottom surface of the tongue plate to prevent the elastic terminal of the plug from contacting the upper end of the tongue plate. Shorted snap tab. The structural improvement of the electrical connector according to claim 1, wherein the upper portion of the base of the insulating base is recessed with a plurality of positioning grooves arranged in a top and bottom arrangement for positioning the contact portions of the terminal group, and A receiving space is formed in the tongue plate for inserting the base, and a plurality of terminal slots corresponding to the plurality of terminal slots at the positioning groove and a distance in front of the terminal slot are disposed at the bottom surface of the tongue plate, and the terminals of the lower row of the terminal group are in contact with each other. The portion is formed by the bottom surface of the positioning groove, and the bottom surface of the terminal contact portion of the upper row is formed with an abutting surface exposed at the hole. The structural improvement of the electrical connector of claim 2, wherein the retaining groove of the insulating seat tongue is formed adjacent to the hole to form abutting surface which is convex downward and contacts the contact portion of the terminal group. The stop wall of the isolation. The structural improvement of the electrical connector according to claim 1, wherein the two sides of the tongue of the insulating seat are longitudinally sectioned with a buckle groove, and respectively on the surface of the two sides of the inner casing of the shielding case There is a buckle that is held in the buckle groove. The structural improvement of the electrical connector of claim 1, wherein the outer portion of the outer casing of the shielding casing is reversely bent with at least one protruding connecting portion, and the connecting portion faces the insertion space. An inner casing extends. The structural improvement of the electrical connector according to claim 1, wherein the outer casing of the shielding shell is located at an inner wall surface of the plugging space, and is provided with a plurality of protruding resisting portions, and has a convex portion at the resisting portion. Point or shrapnel. The structural improvement of the electrical connector of claim 1, wherein the inner casing of the shielding case has a receiving space in which the tongue of the insulating seat is embedded. The structural improvement of the electrical connector according to claim 1, wherein the outer surface of the inner casing of the shielding shell is provided with a suspended elastic arm at two sides.