CN218997150U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, which is provided with an insulating body and a plurality of conductive terminals, wherein the insulating body comprises a main body part extending along the longitudinal direction and two end parts positioned at two ends of the main body part in the longitudinal direction, and the plurality of conductive terminals are arranged on the main body part. The electric connector is also provided with a metal outer frame, wherein the metal outer frame comprises an annular vertical wall, and the annular vertical wall surrounds the insulating body and is arranged at intervals with the main body. The electric connector can achieve the effect of omnibearing shielding to the outside by adopting the annular vertical wall, improves the electromagnetic interference resistance and improves the signal transmission quality.

Description

Electric connector

Technical Field

The present utility model relates to an electrical connector.

Background

The board-to-board (BTB) connector is mainly used for connecting two Printed Circuit Boards (PCB), and comprises a plastic body and a plurality of terminals fixed on the plastic body, wherein the terminals are made of conductive materials (mainly copper alloy) and transmit current and signals between the terminals and the Printed Circuit Boards (PCB). In recent years, electronic devices are being developed in a direction of being thin, light, short and small, so that board-to-board connectors are becoming a necessary trend to replace conventional flat cables, and the purpose of downsizing the electronic devices is achieved. However, the signal transmission requirements of the present electronic devices are large, so that the number of signal transmission terminals in the board-to-board connector is relatively increased, and the placement positions of the signal transmission terminals are relatively close, so that when the signal transmission terminals of the board-to-board connector transmit signals at high speed, the problems of electromagnetic interference, crosstalk interference and the like are easily derived.

Accordingly, there is a need to provide a new electrical connector that overcomes the above-described drawbacks.

Disclosure of Invention

The utility model provides an electric connector which has good electromagnetic interference resistance.

Specifically, the utility model is realized by the following technical scheme: an electric connector is provided with an insulating body and a plurality of conductive terminals, wherein the insulating body comprises a main body part extending along the longitudinal direction and two end parts positioned at two ends of the main body part in the longitudinal direction, and the conductive terminals are arranged on the main body part, and the electric connector is characterized in that: the metal outer frame comprises an annular vertical wall, and the annular vertical wall surrounds the insulating body and is arranged at intervals with the main body part.

In a preferred embodiment, the annular vertical wall is continuously and seamlessly arranged, and the metal outer frame further comprises an upper flanging extending outwards from the top edge of the annular vertical wall and a lower flanging extending outwards from the bottom edge.

In a preferred embodiment, the metal outer frame is formed by drawing a metal sheet.

In a preferred embodiment, the conductive terminal is provided with a tail or weld extending out of the body portion, the tail or weld extending into the space between the annular vertical wall and the body portion.

In a preferred embodiment, the metal outer frame comprises a downward flange extending outwardly from a bottom edge of the annular vertical wall.

In a preferred embodiment, the main body portion includes a middle island and two side walls located at two sides of the middle island, the two side walls and the middle island extend in a longitudinal direction, a receiving groove is formed between the middle island and the two side walls, and the conductive terminal is provided with a U-shaped contact portion located in the receiving groove.

In a preferred embodiment, the metal casing comprises an upturned edge extending outwardly from the top edge of the annular vertical wall, the upturned edge forming an arcuate transition with the annular vertical wall.

In a preferred embodiment, two ends of the metal outer frame are respectively provided with a fixing arm, the fixing arms are provided with a connecting arm connected with the bottom edge of the annular vertical wall and a buckling part positioned at the tail end of the connecting arm, two ends of the middle island are respectively provided with a fixing groove, and the buckling part is in clamping connection with the fixing grooves.

In a preferred embodiment, the end portion is provided with a notch for receiving the connecting arm.

In a preferred embodiment, the metal casing is provided with a flat plate portion covering the end portion.

Compared with the prior art, the utility model has the following beneficial effects: the electric connector can achieve the effect of omnibearing shielding to the outside by adopting the annular vertical wall, improves the electromagnetic interference resistance and improves the signal transmission quality.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

Drawings

Fig. 1 is a perspective view of a first electrical connector according to a preferred embodiment of the utility model.

Fig. 2 is a perspective view of a second electrical connector according to a preferred embodiment of the present utility model.

Fig. 3 is an exploded perspective view of the first electrical connector of fig. 1.

Fig. 4 and 3 are top views of the first electrical connector.

Fig. 5 is an exploded perspective view of the second electrical connector of fig. 2.

Fig. 6 and 5 are top views of the second electrical connector.

Fig. 7 is a cross-sectional view of the first electrical connector mated with the second electrical connector.

Reference numerals illustrate:

the first electrical connector 1, the first insulating body 11, the first main body 111, the middle island 112, the side wall 113, the receiving groove 114, the holding groove 115, the first end 116, the first recess 117, the holding groove 118, the notch 119, the first space 110, the first conductive terminal 12, the U-shaped contact portion 121, the holding portion 122, the tail 123, the first metal outer frame 13, the first annular vertical wall 131, the first lower flange 132, the upper flange 133, the transition portion 134, the holding arm 135, the connecting arm 136, the holding portion 137, the second electrical connector 2, the second insulating body 21, the second main body 211, the side wall 212, the groove 213, the mounting groove 214, the second end 215, the second recess 216, the second space 210, the second conductive terminal 22, the abutting portion 221, the mounting portion 222, the soldering portion 223, the second metal outer frame 23, the second annular vertical wall 231, the second lower flange 232, and the flat plate portion 233.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present utility model. Rather, they are merely examples of apparatus, systems, devices, and methods that are consistent with aspects of the utility model.

Fig. 1 is a schematic diagram of a first electrical connector 1 according to a preferred embodiment of the present utility model, and fig. 2 is a schematic diagram of a second electrical connector 2 according to a preferred embodiment of the present utility model, wherein the first electrical connector 1 and the second electrical connector 2 are a pair of board-to-board connectors that are mated with each other for connecting two printed circuit boards.

Referring to fig. 1, 3 and 4, the first electrical connector 1 is provided with a first insulating body 11, a plurality of first conductive terminals 12 fixed on the first insulating body 11, and a first metal outer frame 13 surrounding the first insulating body 11. The first insulating body 11 includes a first body portion 111 extending in a longitudinal direction, the first body portion 111 includes a middle island 112 and two side walls 113 located at two sides of the middle island 112, the two side walls 113 and the middle island 112 extend in the longitudinal direction, and receiving slots 114 are respectively formed between the middle island 112 and the two side walls 113. The first conductive terminals 12 are disposed on the first main body 111 and are arranged in two rows along the longitudinal direction, each first conductive terminal 12 is provided with a U-shaped contact portion 121, a holding portion 122 and a tail portion 123, the top of the holding portion 122 is connected with the U-shaped contact portion 121, and the tail portion 123 extends outwards from the bottom of the holding portion 122. The side wall 113 is provided with a plurality of holding grooves 115 towards the inner side of the middle island 112, the first conductive terminal 12 is assembled upwards, the holding part 122 is inserted into the holding grooves 115, the U-shaped contact part 121 is positioned in the accommodating groove 114, the tail part 123 is positioned at the bottom side of the side wall 113 and extends outwards to form a first main body part 111, and the tail part 123 is welded to a circuit board (not shown) by adopting a surface mounting technology.

The first insulating body 11 is provided with two first end portions 116 at both longitudinal ends of the first main body portion 111, the width of the first end portions 116 is larger than that of the first main body portion 111, and the outer edge of the first main body portion 111 and the two first end portions 116 form a first recess 117. The first metal outer frame 13 includes a first annular vertical wall 131 surrounding the first insulating body 11, where the first annular vertical wall 131 is attached to an outer edge of the first end 116, but is spaced from the first main body 111 to avoid the tail 123 of the first conductive terminal 12, i.e. the first notch 117 forms a first space 110 between the first main body 111 and the first annular vertical wall 131, and can accommodate the tail 123 of the first conductive terminal 12 that extends outwards beyond the side wall 113. The first metal outer frame 13 of the first electric connector 1 adopts the annular vertical wall to realize the effect of omnibearing shielding to the outside, thereby improving the electromagnetic interference resistance and improving the signal transmission quality.

The first annular vertical wall 131 is continuously disposed in a seamless manner, so that the electromagnetic interference resistance can be further improved. The first annular vertical wall 131 can be formed by stamping and drawing a metal sheet, and the manufacturing process is simple and convenient.

Referring to fig. 2, 5 and 6, the second electrical connector 2 is provided with a second insulating body 21, a plurality of second conductive terminals 22 fixed on the second insulating body 21, and a second metal outer frame 23 surrounding the second insulating body 21. The second insulating body 21 includes a second body portion 211 extending in a longitudinal direction, the second body portion 211 includes two side walls 212, the two side walls 212 extend in the longitudinal direction, and a groove 213 for accommodating the middle island 112 of the first electrical connector 1 is formed between the two side walls 212. The second conductive terminals 22 are fixed on the two side walls 212 and are arranged in two rows along the longitudinal direction, each second conductive terminal 22 is provided with a butt joint part 221, a mounting part 222 and a welding part 223, the top of the mounting part 222 is connected with the butt joint part 221, and the welding part 223 extends outwards from the bottom of the mounting part 222. The outer side of the side wall 212 is provided with a plurality of mounting grooves 214, the first conductive terminals 12 are assembled downwards, the mounting portions 222 are inserted into the mounting grooves 214, the abutting portions 221 are approximately U-shaped and span the side wall 212, the welding portions 223 are located at the bottom side of the side wall 212 and extend outwards to form the second main body portion 211, and the welding portions 223 are welded to another circuit board (not shown) by adopting a surface mounting technology.

The second insulating body 21 is provided with two second end portions 215 at both ends of the second main body portion 211 in the longitudinal direction, the width of the second end portions 215 is larger than that of the second main body portion 211, and the outer edge of the second main body portion 211 and the two first end portions 116 form a second notch 216. The second metal outer frame 23 includes a second annular vertical wall 231 surrounding the second insulating body 21, where the second annular vertical wall 231 is attached to an outer edge of the second end 215, but is spaced from the second main body 211 to avoid the welding portion 223 of the second conductive terminal 22, that is, the second notch 216 forms a second space 210 between the second main body 211 and the second annular vertical wall 231, and can accommodate the welding portion 223 of the second conductive terminal 22 that extends outwards beyond the side wall 212. The second metal outer frame 23 of the second electrical connector 2 adopts the second annular vertical wall 231 to realize the effect of 360-degree surrounding shielding, thereby improving the electromagnetic interference resistance and improving the signal transmission quality. The second annular vertical wall 231 is also continuously and seamlessly arranged, so that the electromagnetic interference resistance can be further improved. The annular vertical wall can be formed by adopting a metal sheet stamping and drawing mode, and the manufacturing process is simple and convenient.

Referring to fig. 7, when the first electrical connector 1 is mated with the second electrical connector 2, the side wall 212 of the second electrical connector 2 is inserted into the receiving groove 114 of the first electrical connector 1, and the mating portion 221 is inserted into the U-shaped contact portion 121 and abuts against two sides of the U-shaped contact portion 121, so as to electrically connect the first electrical connector 1 with the second electrical connector 2 and transmit signals. The second annular vertical wall 231 is located at the inner side of the first annular vertical wall 131, so that double-layer shielding is formed, and shielding effect can be further improved.

As can be seen from the above description, the first electrical connector 1 is similar to the second electrical connector 2, and may be collectively referred to as an electrical connector, and the first metal housing 13 is similar to the second metal housing 23, and may be collectively referred to as a metal housing, i.e., the electrical connector includes an insulating body, conductive terminals, and a metal housing disposed around the insulating body. There are some differences between the first metal frame 13 and the second metal frame 23, which will be described below.

Referring to fig. 3 and 7, the first metal housing 13 of the first electrical connector 1 includes a first downward flange 132 (also referred to as a downward flange) extending outwardly from a bottom edge of the first annular vertical wall 131, and the first downward flange 132 is for being stably supported on a circuit board (not shown). The first metal casing 13 further includes an upturned edge 133 extending outwardly from a top edge of the first annular vertical wall 131, and an arc-shaped transition portion 134 is formed between the upturned edge 133 and the first annular vertical wall 131, and the transition portion 134 guides the second metal casing 23 of the second electrical connector 2 to be inserted into the first metal casing 13.

The two longitudinal ends of the first metal outer frame 13 are respectively provided with a holding arm 135, and the holding arms 135 are provided with a connecting arm 136 connected with the bottom edge of the first annular vertical wall 131 and a buckling part 137 positioned at the tail end of the connecting arm 136. The two longitudinal ends of the middle island 112 of the first insulating body 11 are respectively provided with a buckling groove 118, the first metal outer frame 13 covers the periphery of the first insulating body 11 downwards, and the tail ends of buckling parts 137 of the buckling arms 135 are inserted into the buckling grooves 118 and are in buckling fit with the buckling grooves 118 to connect the first metal outer frame 13 with the first insulating body 11, so that the middle island 112 can be protected. The first end 116 is provided with a notch 119 for receiving the connecting arm 136 of the holding arm 135, which can maintain the thinned structure of the first electrical connector 1.

Referring to fig. 5 and 7, the second metal housing 23 of the second electrical connector 2 includes a second downward flange 232 extending outwardly from a bottom edge of the second annular vertical wall 231, the second downward flange 232 being for being smoothly supported on a circuit board (not shown). The thickness of the second end 215 of the second insulating body 21 of the second electrical connector 2 is substantially the same as the thickness of the side wall 212, and the second metal outer frame 23 is further provided with a flat plate portion 233 covering the second end 215, where the flat plate portion 233 can protect the second insulating body 21.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. An electric connector is provided with an insulating body and a plurality of conductive terminals, wherein the insulating body comprises a main body part extending along the longitudinal direction and two end parts positioned at two ends of the main body part in the longitudinal direction, and the conductive terminals are arranged on the main body part, and the electric connector is characterized in that: the metal outer frame comprises an annular vertical wall, and the annular vertical wall surrounds the insulating body and is arranged at intervals with the main body part.

2. The electrical connector of claim 1, wherein: the annular vertical wall is arranged continuously and seamlessly, and the metal outer frame further comprises an upward flanging extending outwards from the top edge of the annular vertical wall and a downward flanging extending outwards from the bottom edge.

3. The electrical connector of claim 1, wherein: the metal outer frame is formed by drawing a metal sheet.

4. The electrical connector of claim 1, wherein: the conductive terminal is provided with a tail or welding part extending out of the main body part, and the tail or the welding part extends into the interval between the annular vertical wall and the main body part.

5. The electrical connector of claim 1, wherein: the metal outer frame includes a downward flange extending outwardly from a bottom edge of the annular vertical wall.

6. The electrical connector of claim 1, wherein: the main body part includes well island and is located the both sides wall of well island both sides, two the lateral wall with well island all extends along the lengthwise, well island and two respectively form the accommodating groove between the lateral wall, conductive terminal is equipped with and is located U-shaped contact portion in the accommodating groove.

7. The electrical connector of claim 6, wherein: the metal outer frame comprises an upward flanging extending outwards from the top edge of the annular vertical wall, and an arc-shaped transition part is formed between the upward flanging and the annular vertical wall.

8. The electrical connector of claim 6, wherein: the metal outer frame is characterized in that two ends of the metal outer frame are respectively provided with a fixing arm, each fixing arm is provided with a connecting arm connected with the bottom edge of the annular vertical wall and a buckling part positioned at the tail end of the connecting arm, two ends of the middle island are respectively provided with a fixing groove, and the buckling parts are in clamping connection with the fixing grooves.

9. The electrical connector of claim 8, wherein: the end portion is provided with a notch for accommodating the connecting arm.

10. The electrical connector of claim 1, wherein: the metal outer frame is provided with a flat plate portion covering the end portion.

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