CN2452154Y - Electric connector - Google Patents

Abstract

The utility model discloses an electrical connector, which comprises an insulating body, a plurality of conductive terminals, a shielding member coated on the outside of the insulating body and a baffle combined on the insulating body, wherein the insulating body is provided with a An upright base, the base is extended forward with a tongue plate in the shape of a vertical thin plate, and the bottom surface of the tongue plate is lower than the bottom surface of the base, the soldering part of the terminal tail is connected to the circuit board by surface mount technology (SMT) connected. Through the above-mentioned structure, the bottom surface of the tongue plate and the shielding shell covering it can be sunk below the circuit board, so as to save space and reduce the thickness of the mechanism.

Description

electrical connector

The utility model relates to an electrical connector, in particular to a universal bus (USB) electrical connector which is applied to a notebook computer and has a sunken plate structure.

With the development of notebook computers, the requirements for electronic devices are getting higher and higher, which not only have a strong signal transmission function, but also have the characteristics of miniaturization. The Universal Serial Bus (USB) electrical connector widely used at present has become a signal transmission standard in the industry because of its high speed and the ability to transmit more different types of electronic signals, and has replaced the traditional input/ The trend of the output interface. There are two main designs of traditional universal bus electrical connectors. One is to arrange the terminals horizontally in the electrical connector to form a horizontal electrical connector. The terminals and other components of this design are simple to manufacture and easy to assemble. Take up too much horizontal space on the board. Another type of vertical electrical connector is formed by arranging the terminals vertically in the electrical connector. For patents related to this vertical electrical connector, please refer to Chinese Taiwan Patent Application No. 85217217, No. 85218083 and so on. As shown in Figure 1, the three-dimensional exploded view of the electrical connector disclosed in the No. 85217217 patent application, the electrical connector is provided with a vertical block-shaped insulating body 6, and four A terminal accommodation chamber 61, these accommodation chambers 61 all accommodate a conductive terminal 7, each conductive terminal 7 all has a butt end 71, a holding end 72 and a tail end bent toward the circuit board direction from different positions relative to the accommodation chamber 73 , wherein the tail end portion 73 is parallel to the rear side of the main body 6 and extends downwards, and is further accommodated between the two side walls of the spacing positioning groove 62 provided on the rear side of the insulating main body 6 . When the connector is fixed on the circuit board, compared with the horizontal electrical connector, its vertical structure occupies a relatively smaller lateral area of the circuit board, but because of its increased height, it takes up a larger space, thereby increasing The overall thickness is obviously inconsistent with the development trend of thinning notebook computers. In addition, in the above structure, the terminal 7 is assembled from the rear end surface of the insulating body 6 and part of the structure is exposed to the outside. When the metal shell is assembled, the terminal is very easy to touch the metal shell and a short circuit occurs, thereby causing signal transmission safety. hidden dangers.

The purpose of the utility model is to provide a vertical sinker type electrical connector, which can effectively save space and reduce the overall thickness of the mechanism while ensuring reliable signal transmission.

In order to achieve the above object, the utility model adopts the following technical solution: the electrical connector at least includes a base, a docking part and a plurality of conductive terminals, the base is an upright insulating member extending in the vertical direction, and has a joint with the circuit board. On the bottom surface, the docking part is provided on one side of the base for docking. The docking part includes a number of accommodation chambers arranged in the vertical direction and extending backwards through the base in parallel. The conductive terminals are correspondingly accommodated in the accommodation chamber of the insulating body. The terminals are all provided with a docking part that is in contact with the terminal of the docking electrical connector, and the other end is provided with a tail part that can be electrically connected to the circuit board at its end part, and each terminal is also provided with a socket for holding in the aforesaid housing. The holding part in the chamber, wherein the bottom of the docking part is located below the bottom surface of the base.

The electrical connector with the above features, wherein the docking part includes a tongue plate extending forward from the front surface of the base and in the shape of a vertical thin plate, and a shielding shell in the shape of a frame opening and surrounding the tongue plate, the The bottom surface of the tongue plate is lower than the bottom surface of the base so as to form a sunken plate structure, which can save space and reduce the thickness of the mechanism. The baffle provided by the electrical connector is tightly combined on the rear side of the insulating body, which can achieve the effect of fixing the tail of the terminal and isolating the shielding shell and the terminal, thereby ensuring the safety of signal transmission.

Below in conjunction with accompanying drawing and preferred embodiment the utility model is described further.

FIG. 1 is an exploded perspective view of a conventional electrical connector.

Fig. 2 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 3 is a perspective view of assembled parts of the components shown in Fig. 2 .

FIG. 4 is a three-dimensional assembly diagram of the insulating body and terminals of the electrical connector of the present invention.

FIG. 5 is a three-dimensional assembled view of the electrical connector of the present invention.

Fig. 6 is a cross-sectional view along A-A direction in Fig. 5 .

Fig. 7 is a side view of the electric connector of the present invention cooperating with the circuit board.

Please refer to FIG. 2 and FIG. 7 , the electrical connector of the present invention includes an insulating body 1 , a shielding member 2 covering the outer side of the insulating body 1 , a baffle plate 3 and a conductive terminal 4 assembled on the rear side of the insulating body 1 . Wherein the insulating body 1 is provided with a vertically extending and upright base 11, the base 11 has a bottom surface 110 that can be joined to the circuit board 5 (see Figure 4), and extends forward from the front surface of the base 11 A tongue plate 12 is provided in the shape of a vertical thin plate, and the bottom surface 120 of the tongue plate 12 is lower than the bottom surface 110 of the base portion 11 (see FIG. 4 ). In addition, a plurality of accommodation chambers 14 arranged longitudinally and extending backward through the base 11 are arranged on the side wall of the tongue plate 12, and the conductive terminals 4 are accommodated therein. The groove 142 of the plate 12 , the through hole 143 connected with the groove 142 , and the slots 141 arranged on the upper and lower side walls of the through hole 143 . At the same time, a pair of convex ribs 17 are integrally provided on both sides of the rear side 13 of the insulating body 1, and a plurality of spacer blocks 15 are integrally provided on the bottom of the side close to the circuit board 5, and spacer grooves 16 are formed therebetween to isolate the tails of the terminals. (details later).

The conductive terminals 4 are longitudinally arranged and accommodated in corresponding accommodation chambers 14, which have a "V"-shaped docking portion 41, and are integrally connected with the docking portion 41 to interfere with the accommodation chamber 14 and have undergone a bent interference portion 42 (see FIG. 6), the retaining portion 43 formed at the end of the interference portion 42 that can be engaged in the slot 141, the bent portion 44 formed by bending the end of the self-holding portion 43 perpendicular to the direction of the circuit board 5, and the end of the bent portion 44 toward the The tail portion 45 bent vertically in the direction of the circuit board 5, wherein the bent portion 44 of the terminal 4 located at the lowest position and accommodated in the accommodation chamber 14 closest to the circuit board and the terminal located above it and accommodated in other accommodation chambers 14 The bending directions of the bending parts are opposite, and the bending parts 44 of each terminal are not equal in length from top to bottom. These bending parts 44 cooperate with the spacer grooves 16, so that the terminal tails 45 can maintain a predetermined distance and be positioned easily, so as to prevent the tails 45 of adjacent terminals 4 from bending and causing mutual contact and short circuit, which can improve the safety of signal transmission. . The terminal tail portion 45 is bent 90 degrees outward to form a horizontal soldering portion 46 that can be joined with the circuit board.

In addition, the baffle plate 3 provided by the electrical connector is tightly combined on the rear side 13 of the insulating body 1 through the interference fit with the convex rib 17 and the blocking positioning of the spacer block 15, so as to reach the fixed terminal tail 45 and isolate the shielding shell and terminal functions. Wherein the lower end of the baffle plate 3 is an inclined surface.

The metal shielding member 2 is arranged corresponding to the shape of the insulating body 1 and can be covered outside it. It includes a first shell 21 and a second shell 22 in the shape of a frame opening. The two sides of the first shell 21 are Each of the walls is extended with an engaging plate 211 , and a buckle 212 protrudes from a side edge of the extending end of the engaging plate 211 . The second housing 22 matched with the first housing 21 is provided with a square hole 222 on its housing, so that the above-mentioned buckle 212 can pass through and bend to hold its edge so that the first and second housings 21, 22 They are combined with each other, and a pair of holding feet 221 are provided on the lower part of the side walls, which can be engaged in holding holes (not shown) of the circuit board. The tongue plate 12 of the insulating body 1 and the first housing 21 of the shielding member 2 form a mating portion of the electrical connector.

Please refer to Fig. 5 and Fig. 7, when the electrical connector group is arranged on the circuit board 5, the terminal 4 is joined on the circuit board 5 through the welding part 46, and the corresponding holding holes on the circuit board 5 are clamped through the holding feet 221 close, so that the bottom surface 110 of the base 11 of the insulating body 1 is closely attached to the upper surface of the circuit board 5, so that the butt joint part formed by the tongue plate 12 and the first shell 21 of the shielding shell 2 correspondingly covered outside it The bottom of the will be located below the board 5. With the help of this sunken plate structure, the effect of saving space and reducing the thickness of the mechanism can be achieved.

Please refer to FIG. 2 and FIG. 3 , after the conductive terminal 4 is fixed in the insulating body 1, the butt joint 41 of the terminal 4 is pressed in through the through hole 143 and accommodated in the groove 142 of the tongue plate 12, And it is fixed in the slot 141 of the receiving chamber 14 by the holding part 43 of the terminal 4. The bent part 44 of the terminal 4 is closely attached to the rear side 13 of the base part 11 and arranged in parallel along the direction of the circuit board 5. As for the tail part 45 of the terminal 4 Then extend downward along the direction perpendicular to the circuit board 5 and pass through the spacing groove 16 at the bottom of the rear side 13 of the insulating housing 1 to prevent the terminals 4 from abutting against each other and short-circuiting. The baffle plate 3 is fixed on the rear side 13 of the insulating body 1, and is blocked by the convex ribs 17 on both sides of the rear side 13 and the spacer 15 at the bottom, so that the bending part 44 and the tail part 45 of the terminal 4 are further sandwiched between the baffles. between the board 3 and the rear side 13, and separate the terminal 4 and the shielding member 2 to prevent the two from contacting and causing a short circuit. The insulating body 1 combined with the baffle plate 3 and containing the conductive terminals 4 is assembled into the first housing 21 from the rear side of the first housing 21 of the shielding member 2, and the second housing 22 of the shielding member 2 is correspondingly embedded. In the above combined structure, the buckle 212 of the first shell 21 is bent inward and fastened to the square hole 222 of the second shell 22 to form an electrical connector as shown in FIG. 5 .

Claims (9)

1. An electrical connector at least includes a base, a docking portion and a plurality of conductive terminals, the base is an upright insulating member extending in the vertical direction, and has a bottom surface joined to a circuit board, the docking portion is located on a base The side is used for docking. The docking part includes a number of storage chambers arranged in the vertical direction and extending backwards through the base in parallel. The conductive terminals are correspondingly stored in the storage chambers of the insulating body, and each terminal is provided with a docking electrical connector. The docking part where the terminals are connected, and the other end is provided with a tail part that can be electrically connected to the circuit board at its end part, and each terminal is also provided with a holding part for holding in the aforesaid accommodation chamber, which is characterized in that: The bottom of the docking portion is located below the bottom surface of the base. 2. The electrical connector according to claim 1, characterized in that: a bending portion is formed parallel to the direction of the circuit board by vertically bending from the end of the holding portion of the terminal, and is accommodated in the bending portion of the terminal in the receiving chamber closest to the circuit board. The bending direction of the bending portion is opposite to that of the bending portions of the terminals accommodated in other accommodation chambers above it, and the bending portions of each terminal are not equal in length from top to bottom. 3. The electrical connector as claimed in claim 1, wherein the terminal holding portion is provided with vertically corresponding slots on one side of the receiving chamber to provide a function of holding the terminal. 4. The electrical connector according to claim 3, wherein a spacer groove is provided at an appropriate position on the rear side of the insulating body to isolate and position the tail of the positioning terminal. 5. The electrical connector according to claim 1 or 4, characterized in that the electrical connector includes a baffle plate closely combined with the rear side of the insulating body for fixing the terminal tail. 6. The electrical connector as claimed in claim 5, further comprising a shielding member covering the outside of the insulating body for electromagnetic shielding. 7. The electrical connector according to claim 1 or 4, characterized in that: the docking part includes a vertical thin plate-shaped tongue plate extending forward from the front surface of the base, and a frame-shaped opening surrounded by the tongue plate shielding shell. 8. The electrical connector according to claim 7, wherein the shielding member comprises a first housing and a second housing, the two side walls of the first housing are extended with joint plates, and the joint plate protrudes through the joint plate. The buckle is fastened with the square hole of the second housing. 9. The electrical connector according to claim 8, wherein a pair of holding legs are respectively provided on the side walls of the second housing, and engage with corresponding holding holes on the circuit board.

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