TWM465690U - Structure improvement of electric connector - Google Patents

Description

Structural improvement of electrical connectors

The present invention provides an improvement of the structure of the electrical connector, in particular, the outer cover of the insulating base is positioned with a shielding shell, and the connecting portion is bent backward at the rear of the outer casing, and then extends into the outer connecting space of the outer casing. The inner casing is disposed outside the tongue plate, which can reduce the length dimension of the shielding shell, and at the same time, the integral height of the outer casing and the inner casing can effectively reduce the overall height, and save assembly time and cost.

According to the rapid development of today's electronic technology, the type of computer has evolved from a desktop computer to a small-sized, portable notebook computer, and it is common in all corners of 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, and the universal serial bus (USB) is still the mainstream.

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. In order to avoid the structural strength of the whole due to the reduction of the tongue size, if the tongue size is reduced, the terminal group will easily exit the tongue or the structural damage will occur.

In order to solve the problems arising from the above-mentioned conventional electrical connectors, the applicant applied for a new type of patent to the bureau in the structural improvement of the electrical connector on December 21, 2011, the application number was first. For the second and fourth figures, please refer to the ninth and tenth figures, which are respectively an exploded perspective view and a side cross-sectional view of the conventional electrical connector, wherein the insulating base A has a base A1 inside. The plurality of terminal slots A11 are provided with a terminal set B, and a shield case C is disposed on the outer cover of the insulating base A, and the first outer casing C1 of the shield case C is formed inside the base A1. The tongue plate A2 extends into the insertion space C10, and the second outer casing C2 has a shielding plate C21 which is engaged and fixed in the fitting portion A21 of the tongue plate A2 with respect to the other side surface of the terminal groove A11. The second outer casing C2 is covered on the outside of the tongue plate A2 and assembled with the first outer casing C1 to reduce the length dimension of the shielding casing C and to improve the overall structural strength after the length of the insulating seat A is reduced.

However, the shielding case C is assembled by first fitting and fitting the shielding plate C21 of the second outer casing C2 and the fitting portion A21 of the tongue plate A2, and assembling the tongue plate A2 with the base A1, and then the tongue. The card A2 is pushed into the insertion space C10 of the first casing C1, and the shackle C11 of the first casing C1 is fastened in the card slot C23 of the second casing C2 located on the positioning card C22, and the positioning card is The elastic clasp C24 of the plate C22 is integrated into the corresponding buckle groove C12 of the first outer casing C1, but the first outer casing C1 and the second outer casing C2 of the shielding casing C cannot be assembled once. However, it is necessary to separately perform assembly of more than two times, and the assembly man-hour and cost are greatly increased, and the assembly structure of the first outer casing C1 and the second outer casing C2 must have a certain thickness to strengthen the overall structure, so that the whole is The thickness is relatively increased, and considering that there is still much room for improvement in the structural design of the electrical connector, it is yet to be redesigned to effectively solve the problem in this industry.

Therefore, the new creators, in view of the problems and shortcomings of the conventional electrical connectors, collected the relevant materials through multi-party evaluation and consideration, and continuously tried and modified the years of R&D experience in the industry to design such electrical connectors. The new type of structural improvement was born.

The main purpose of the present invention is that the terminal block on the base side of the insulating base body is positioned with a terminal set, and the outer cover of the insulating seat body is positioned with a shielded shell having an outer casing body, and the outer side of the outer casing body is Forming a plug-in space for inserting an external electrical connector into an electrical connection with the terminal group, and bending a connecting portion at a rear portion of the outer casing, and extending in the plugging space to be positioned outside the tongue plate After the plug is inserted into the positioning, the elastic buckle on the surface of the inner casing can be used to be positioned in the corresponding button hole of the outer cover of the plug, so that the plug can be stabilized and not easily loosened. At the same time, the outer casing and the inner casing are integrally formed to effectively reduce the overall length dimension and height, and the assembly man-hour and cost are saved, and the inner casing can be positioned outside the tongue plate to further reduce the structure of the insulated seat body. strength.

The secondary purpose of the present invention is that when the tongue plate of the insulating seat is embedded in the wearing space of the inner casing, the side plate at the front of the inner casing will resist the blocking surface of the tongue plate, and The two side plates of the inner casing are fastened by the buckles in the corresponding buckle grooves of the tongue plate, and the limiting pieces bent inwardly at the lower side of the two side plates are fastened in the holding grooves at the bottom surface of the tongue plate. At the same time, the two connecting portions at the rear of the outer casing are embedded in the corresponding recessed grooves on the baffle by the positioning card stacked on the upper and lower sides, thereby achieving the effects of stable structure, easy assembly and firm positioning.

Another purpose of this creation is that the tongue plate of the insulating base is concave. The terminal group passes through the plurality of terminal slots of the set position, and at least one floating arm is disposed on the surface of the tongue plate corresponding to the terminal slot. When the plug of the external electrical connector is inserted into the position, the pin can be pushed down to the top of the bullet. The protruding portion protruding forward of the arm is pressed downward against the contact portion of the terminal group to abut the contact between the abutting surface and the elastic terminal of the plug, and a stable electrical connection state is formed, thereby ensuring the overall signal transmission quality. .

A further object of the present invention is that the inner casing of the shielding case is located at the central hollow hole and is provided with at least one arched or suspended grounding elastic piece toward the tongue of the insulating base body, and is biased downward by the grounding elastic piece. Contacting the circuit group to form a common ground circuit, the electromagnetic interference and noise generated around the electrical connector can be guided to the ground of the circuit board for release by the shielding shell, thereby improving the overall signal transmission quality. For stability.

1‧‧‧Insulated body

11‧‧‧Base

111‧‧‧ positioning slot

12‧‧ ‧ tongue

121‧‧‧Terminal slot

122‧‧‧Block surface

123‧‧‧ buckle groove

124‧‧‧ card slot

125‧‧ ‧ baffle

126‧‧‧ slotted

127‧‧‧ Limit slot

128‧‧‧through slot

13‧‧‧Bounce arm

131‧‧‧Move

2‧‧‧Terminal group

21‧‧‧ terminals

211‧‧‧Contacts

2111‧‧‧ docking surface

212‧‧‧Weld Department

3‧‧‧Shield housing

31‧‧‧Outer casing

310‧‧‧Dock space

311‧‧‧Responsible Department

3111‧‧‧Bumps

3112‧‧‧Shrap

3113‧‧‧ slotting

312‧‧‧ buckle

32‧‧‧Connecting Department

321‧‧‧ positioning card board

3211‧‧‧ slotting

322‧‧‧

33‧‧‧ inner casing

330‧‧‧With space

331‧‧‧ hollow holes

332‧‧‧ edge board

333‧‧‧ side panels

334‧‧‧Glosses

335‧‧‧Limited film

336‧‧‧welding feet

34‧‧‧Flexible clasps

341‧‧‧Detention Department

35‧‧‧ Grounding shrapnel

4‧‧‧ boards

41‧‧‧Breaking

42‧‧‧Contacts

5‧‧‧Electrical connector

51‧‧‧ plug

511‧‧‧Slab terminal

512‧‧‧Flexible terminal

52‧‧‧Shell

521‧‧‧ buttonhole

A‧‧‧Insulated body

A1‧‧‧ base

A11‧‧‧ terminal slot

A2‧‧‧ tongue plate

A21‧‧‧Mate

B‧‧‧Terminal group

C‧‧‧Shield housing

C1‧‧‧ first shell

C10‧‧‧ docking space

C11‧‧‧ buckle plate

C12‧‧‧ buckle groove

C2‧‧‧ second casing

C21‧‧‧shading board

C22‧‧‧ positioning card board

C23‧‧‧ card slot

C24‧‧‧elastic buckle

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 figure is a side cross-sectional view of the creation before assembly.

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

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 after use.

Figure 8 is a side cross-sectional view of another preferred embodiment of the present invention.

The ninth diagram is an exploded perspective view of a conventional electrical connector.

Figure 10 is a side cross-sectional 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 and third figures, which are respectively the three-dimensional external view, the three-dimensional exploded view and the three-dimensional exploded view of another perspective. It can be clearly seen from the figure that the creation includes an insulating seat. 1. The terminal set 2 and the shield case 3, wherein the insulating base 1 has a base 11 and a tongue 12 is disposed at a side of the base 11, and the base 11 and the tongue 12 can be integrated. Formed or separately assembled, the bottom of the base 11 is provided with a plurality of positioning grooves 111, and a plurality of terminal slots 121 are arranged on the tongue plate 12 in a vertically stacked arrangement, and a continuous shape is formed in front of the tongue plate 12. The blocking surface 122 of the stepped shape is provided with a buckle groove 123 adjacent to the two sides of the blocking surface 122, and a holding groove 124 is recessed at both sides of the bottom surface of the tongue plate 12.

In addition, a baffle 125 is protruded toward the periphery of the tongue plate 12, and the baffle 125 is disposed adjacent to the surface of the tongue plate 12 with at least one recessed groove 126, and is located at the center and the two sides of the second recessed groove 126. A plurality of limiting slots 127 are defined in the upper portion, and a through slot 128 is defined in the two sides of the baffle 125, and at least one floating arm 13 is provided on the surface of the tongue plate 12 corresponding to the terminal slot 121. A push portion 131 that protrudes upward is provided in front of the elastic arm 13.

The terminal group 2 is preferably implemented as a plurality of terminals 21 arranged in a vertically stacked arrangement, wherein the four terminals 21 of the lower row are in accordance with the USB 2.0 specification, and the five terminals 21 of each upper row are added to the four terminals of the lower row. 21 is in compliance with USB3.0 specifications, and the terminal group A contact portion 211 is formed on one side of each of the terminals 21, and abutting surface 2111 is formed on the bottom of the contact portion 211 of the five terminals 21 of the upper row, and each terminal 21 is disposed on the other side of the contact portion 211. There is a soldering portion 212, but in actual application, only four terminals 21 conforming to the USB2.0 specification may be provided for the external electrical connector 5 (as shown in the sixth and seventh figures). Plug in and use.

The shield case 3 has an outer casing 31 and is inside the outer casing 31. The insertion space 310 is formed, and at least one connecting portion 32 is reversely bent at the rear of the outer casing 31, and a horizontal inner casing 33 is extended toward the insertion space 310, and the insertion space 310 of the outer casing 31 is formed. The upper and lower side wall surfaces are provided with at least one protruding abutting portion 311, and the abutting portion 311 has a convex portion 3111 or a spring piece 3112, and a slit 3113 is formed at a periphery of the elastic piece 3112 at the bottom of the outer casing 31, and Located at the rear of the elastic piece 3112, a plurality of fastening pieces 312 extending rearward are provided.

However, the two connecting portions 32 of the shield case 3 have a stack of upper and lower layers. The positioning card board 321 is disposed at two sides of the positioning card board 321 with a slot 3211, and a plurality of gussets 322 extending rearward are disposed at the center and the two sides of the two connecting portions 32, and the inner casing 33 is internally a plurality of hollow holes 331 are formed on the surface of the inner casing 33, and at least one of the hollow elastic pieces 34 is disposed between the hollow holes 331 at the inner side of the inner casing 33, and A protruding latching portion 341 is bent upwardly in front of the elastic clasp 34.

In addition, the front of the inner casing 33 of the shielding casing 3 is formed with a downward bend. The side plate 332 and the side plate 333 are formed on the two sides of the inner casing 33, and the side plate 333 is provided with a convex buckle 334 adjacent to the side plate 332, and the two side plates 333 are disposed. The square piece 335 is bent inwardly with respect to the inner side, and the welding leg 336 which is bent backward is provided on the inner casing 33 at two sides behind the connecting portion 32.

Please refer to the fourth and fifth figures, respectively. The side cross-sectional view and the side cross-sectional view after assembly can be clearly seen from the figure. When the present invention is assembled, the terminals 21 of the terminal group 2 are respectively disposed on the tongue plate 12 of the insulating base 1 . In the plurality of terminal slots 121, the contact portion 211 which is suspended at the side of the lower row of terminals 21 is passed through the front bottom surface of the base 11, and the contact portion 211 at the side of the upper row of terminals 21 is butted by the flat shape. The surface 2111 is exposed at the front bottom surface of the base 11, and the soldering portion 212 at the other side of each terminal 21 is positioned to pass through the rear of the base 11.

The shield case 3 and the insulating base 1 are assembled and assembled, and the manner of assembly thereof is continued. Firstly, the tongue 12 of the insulating base 1 is aligned with the insertion space 310 of the outer casing 31, that is, the base 11 is laterally displaced toward the outer casing 31, and the tongue 12 is embedded in the inner casing. The inside of the wearing space 330 of the 33, and the pushing portion 131 of the elastic arm 13 respectively pass through the corresponding hollow hole 331 on the inner casing 33, and the inner casing 33 can be pushed when the tongue plate 12 is pushed into position. The side plate 332 at the front resists the corresponding blocking surface 122 of the tongue plate 12 to form a stop position, and the side plate 333 at the two sides of the inner casing 33 is buckled forwardly to the tongue plate 12 by the buckle 334. In the groove 123, the limiting piece 335 which is bent inwardly opposite to the two side plates 333 is fastened in the holding groove 124 at the two sides of the bottom surface of the tongue plate 12, and the two connecting portions 32 at the rear of the outer casing 31 are respectively The positioning card 321 is vertically embedded in the corresponding recess 126 of the baffle 125, and the gusset 322 is clamped in the corresponding limiting slot 127 of the baffle 125, and the rear of the inner casing 33 is The soldering leg 336 at the side is inserted through the corresponding slot 128 on the baffle 125, and then the rearward extension of the outer casing 31 is extended. The piece 312 is fixed in the corresponding positioning groove 111 at the bottom of the base 11 to achieve a stable structure, easy assembly and firm positioning.

Please also refer to the sixth and seventh figures, which are respectively the preferred embodiment of the creation. The side cross-sectional view before use and the side cross-sectional view after use, as can be clearly seen from the figure, the electrical connector of the present invention can be applied to a computer mainframe, a notebook computer, an ultra-thin notebook computer (Ultrabook). Or the circuit board 4 inside the other electronic device (not shown), the base 11 of the insulating base 1 and the outer casing 31 of the shield case 3 are positioned in a broken plate on the hole 41 of the circuit board 4. The soldering portion 212 of the terminal group 2 and the soldering leg 336 of the shielding case 3 are respectively positioned in corresponding contacts 42 (such as through holes or jacks) on the circuit board 4, and then welded by using Through Hole. The method of soldering on the circuit board 4 is only a preferred implementation state, and can also be firmly integrated by surface adhesion technology (SMT) soldering to form a good electrical connection.

The insulating seat 1 of the present invention can be made under the condition that the standard size of the width is constant. The length dimension is appropriately reduced, and at least one connecting portion 32 is reversely bent at the rear of the outer casing 31 by the shielding shell 3, and then extended to the socket space 310 of the outer casing 31 with a cover and positioned on the insulating base 1. The inner casing 33 outside the tongue plate 12 can not only reduce the length dimension of the shield case 3, but also form a simple assembly process by integrally forming the outer casing 31 and the inner casing 33, and can effectively reduce the overall height and be thinner. It 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 4, and save labor and cost for assembly. It can also be covered by the inner casing 33 of the shielding case 3. It is located outside the tongue plate 12, thereby improving the overall structural strength of the length of the insulating seat body 1 after being reduced.

When the creation is in use, the external electrical connector 5 is first inserted into the shield. The plug-in space 310 of the housing 3 and the plurality of flat-plate terminals 511 and the elastic terminals 512 that pass through the set position of the plug 51 are respectively electrically connected to the contact portions 211 of the terminals 21 of the terminal group 2, and the plug 51 is electrically connected. During the insertion process, the outer cover 52 of the plug 51 can be pushed down against the latching portion 341 of the elastic clasp 34 on the surface of the inner casing 33, and the elastic arm 13 on the surface of the tongue plate 12 is changed. The portion 131 is elastically deformed, and after the external electrical connector 5 is inserted into the positioning, the fastening portion 341 of the elastic clasp 34 can be buckled and positioned on the corresponding button hole 521 of the outer casing 52 via the process of elastic deformation and resetting. The contact portion 211 of the upper end of the terminal block 2 of the terminal block 2 is pressed against the contact portion 211 of the terminal block 2 to abut against the elastic terminal 512 of the plug 51 while the outer casing 31 is supported by the outer casing 31. The abutting portion 311 at the upper and lower sides is opposite to the outer casing 52 by the bump 3111 and the elastic piece 3112, so that the external electrical connector 5 is inserted into the insulating base 1, the terminal group 2 and the shield case 3 to form a stable state. The electrical connection state, and the plug 51 can be stabilized and not easily loosened after being plugged and unplugged multiple times. The effect can also be closer to the terminal group 2 positioned inside the tongue plate 12 through the inner casing 33, and form a double shielding function with the outer casing 31 to effectively suppress or filter electromagnetic interference (EMI) generated during signal transmission. And crosstalk interference, which ensures the quality of the overall signal transmission.

Please continue to refer to the eighth figure, which is the side of another preferred embodiment of the present invention. Referring to the cross-sectional view, it can be clearly seen from the figure that the inner casing 33 of the present shielded casing 3 is located at the central hollow hole 331 at least in the direction of the tongue plate 12 of the insulating base body 1 and is provided with at least one arch bridge or overhanging shape. The grounding elastic piece 35 is grounded by the grounding elastic piece 35 to contact the terminal 21 at the center of the upper row of the terminal group 2 to form a common grounding circuit, and the terminal 21 is the terminal group 2 conforming to the seventh of the USB3.0 specification. The grounding terminal can be used to shield the housing 3 to the electrical connector Electromagnetic interference generated around the noise and noise are directed to the ground of the circuit board 4 for release, thereby making the overall signal transmission quality more stable and reliable.

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‧‧‧Terminal slot

122‧‧‧Block surface

123‧‧‧ buckle groove

125‧‧ ‧ baffle

126‧‧‧ slotted

127‧‧‧ Limit slot

128‧‧‧through slot

13‧‧‧Bounce arm

131‧‧‧Move

2‧‧‧Terminal group

21‧‧‧ terminals

211‧‧‧Contacts

212‧‧‧Weld Department

3‧‧‧Shield housing

31‧‧‧Outer casing

310‧‧‧Dock space

311‧‧‧Responsible Department

3111‧‧‧Bumps

3112‧‧‧Shrap

3113‧‧‧ slotting

32‧‧‧Connecting Department

321‧‧‧ positioning card board

3211‧‧‧ slotting

322‧‧‧

33‧‧‧ inner casing

331‧‧‧ hollow holes

332‧‧‧ edge board

333‧‧‧ side panels

334‧‧‧Glosses

336‧‧‧welding feet

34‧‧‧Flexible clasps

341‧‧‧Detention Department

Claims (10)

The structural improvement of an electrical connector includes an insulating base body, a terminal set and a shielding shell, and the insulating base body has a base, and a terminal group having a plurality of terminals is positioned on the tongue plate at one side of the base And the outer cover of the insulating base is positioned with the shielding shell, and the improvement is that the outer casing of the shielding shell has a plug formed by the plug for external electrical connector and is electrically connected with the terminal group. a space, and at least one connecting portion is reversely bent at a rear of the outer casing, and an inner casing extending outside the tongue plate is extended in the insertion space, and at least one fastening position is disposed on the surface of the inner casing The elastic connector piece in the corresponding button hole of the outer casing is covered by the external electrical connector plug. The structural improvement of the electrical connector according to claim 1, wherein the bottom of the base of the insulating base is provided with a plurality of positioning slots, and the outer part of the bottom of the outer casing of the insulating shell is extended backward and latched. Locate the plurality of fastening tabs in the slot. The structural improvement of the electrical connector according to claim 1, wherein the insulating seat has a plurality of terminal slots recessed in the tongue plate, and a terminal set having a plurality of terminals is disposed in the terminal slot. The structural improvement of the electrical connector of claim 3, wherein the surface of the tongue plate is provided with at least one suspended arm corresponding to the terminal slot, and is provided at the front of the elastic arm. The sliding portion of the hollow hole provided on the surface of the inner casing of the shielding shell is shielded, and the inner casing of the shielding shell is located on the elastic buckle between the hollow holes at the two sides, and is bent and extended to be positioned and fixed to the external electrical connector. a fastening portion in the corresponding buttonhole on the outer casing. The structural improvement of the electrical connector according to claim 1, wherein the front side of the tongue of the insulating seat is formed with a continuous stepped barrier surface and adjacent to the two sides of the blocking surface. a buckle groove is formed, and a front plate is formed at a front portion of the inner casing of the shielding shell to form a stop position against the blocking surface, and a side plate which is bent downward is formed at two sides of the inner casing, and the side plate is formed A buckle is fastened in the buckle groove adjacent to the side plate. The structural improvement of the electrical connector according to claim 5, wherein the insulating seat has a recessed groove on two sides of the bottom surface of the tongue plate, and the lower side of the two side plates on the inner casing of the shielded casing The limiting piece is fastened inwardly and locked in the holding groove. The structural improvement of the electrical connector according to claim 1, wherein the insulating seat has a baffle at the rear of the tongue plate, and at least one slot is provided adjacent to the surface of the tongue plate. And the two connecting portions of the shielding shell have a positioning card which is vertically stacked, and the two sides of the positioning card are respectively provided with a slit, and the positioning card is embedded in the corresponding groove on the baffle. Present a position. The structural improvement of the electrical connector according to the seventh aspect of the invention, wherein the baffle of the insulating seat is located at a center of the two recessed grooves and at two sides thereof, and is provided with a limiting slot, and is disposed at two sides of the baffle There is a slotted groove, and the central part and the two sides of the connecting portion of the shielding shell are provided with a gusset plate held in the limiting slot, and the inner casing is located at the rear side of the connecting portion at the two sides of the connecting portion. Welding feet at the place. The structural improvement of the electrical connector of claim 1, wherein the inner wall surface of the insertion space of the shielding case outer body is provided with at least one protruding abutting portion and has a convex portion at the resisting portion. Point or shrapnel, and a section of the shrapnel is cut around the shrapnel. The structural improvement of the electrical connector of claim 1, wherein the inner casing surface of the shielding shell is provided with at least one terminal that is in contact with the terminal group toward the tongue of the insulating base. A grounding shrapnel of a common ground loop is formed.