CN218997190U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, which comprises an insulating body, a plurality of conductive terminals arranged on the insulating body and two metal shells respectively arranged at two ends of the insulating body. The insulating body is provided with a top surface, two opposite first outer side surfaces and two opposite second outer side surfaces. The metal shell comprises a top wall, a side wall bent downwards from the outer side edge of the top wall, and two extending walls bent inwards from the two ends of the side wall respectively, wherein the side wall and the two extending walls form a U-shaped structure. The top wall covers the top surface of the insulating body, the side walls cover the first outer side surface of the insulating body, and the two extending walls cover the two second outer side surfaces of the insulating body respectively. The metal shell of the electric connector is provided with the top wall, the side wall bent from the top wall and the extension wall bent from the side wall, so that the metal shell can be more comprehensively coated on the insulating body, comprises the corner of the insulating body, and has a better shielding effect.

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 comprises an insulating body, a plurality of conductive terminals arranged on the insulating body and two metal shells respectively arranged at two ends of the insulating body, wherein the insulating body is provided with a top surface, two opposite first outer side surfaces and two opposite second outer side surfaces; the metal shell comprises a top wall, a side wall downwards bent from the outer side edge of the top wall and two extending walls inwards bent from the two ends of the side wall respectively, wherein the side wall and the two extending walls form a U-shaped structure, the top wall covers the top surface, the side wall covers the first outer side surface, and the two extending walls respectively cover the two second outer side surfaces.

In a preferred embodiment, the insulating body is provided with a bottom wall and a side peripheral wall extending upwards from the peripheral edge of the bottom wall, the bottom wall and the side peripheral wall enclose a housing cavity for housing the mating connector, and the conductive terminal is fixed on the side peripheral wall and is provided with a contact part protruding into the housing cavity.

In a preferred embodiment, the top wall is provided with a U-shaped notch which avoids the insertion opening of the accommodating cavity.

In a preferred embodiment, the edges of the notch are provided with downwardly extending guide flanges.

In a preferred embodiment, opposite side edges of the top wall are bent downwards to form a pair of clamping arms, two ends of the insulating body are respectively provided with a pair of clamping grooves, and the clamping arms are inserted into the clamping grooves.

In a preferred embodiment, the bottom wall is provided with a platform portion located outside the side peripheral wall, the platform portion supporting the metal shell.

In a preferred embodiment, the extension wall is provided with a recess penetrating downwards, and the insulating body is correspondingly provided with a lug extending upwards from the platform part, and the lug is clamped into the recess.

In a preferred embodiment, the insulating body is provided with a limiting block extending upwards from the platform part, a limiting groove is formed between the limiting block and the side peripheral wall, and the tail end of the extending wall is located in the limiting groove.

In a preferred embodiment, the projection is aligned with the stopper in a longitudinal direction.

Compared with the prior art, the utility model has the following beneficial effects: the metal shell of the electric connector is provided with the top wall, the side wall bent from the top wall and the extending wall bent from the side wall, and can be wrapped on the insulating body in multiple directions, and the metal shell comprises the corner of the insulating body and has a better shielding effect.

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 an electrical connector according to a preferred embodiment of the present utility model.

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

Fig. 3 is a perspective view of the shield of fig. 2.

Reference numerals illustrate:

the insulation body 1, the accommodating cavity 10, the bottom wall 11, the side peripheral wall 12, the top surface 13, the first outer side surface 14, the second outer side surface 15, the clamping groove 16, the platform portion 17, the protruding block 18, the limiting block 19, the limiting groove 191, the conductive terminal 2, the contact portion 21, the metal shell 3, the top wall 31, the side wall 32, the extension wall 33, the tail end 331, the notch 34, the guide flange 35, the clamping arm 36 and the notch 37.

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.

Referring to fig. 1, an electrical connector according to a preferred embodiment of the present utility model is a board-to-board connector, and includes an insulating body 1, a plurality of conductive terminals 2 and two metal shells 3, wherein a receiving cavity 10 is formed at the center of the insulating body 1 for receiving a mating connector (not shown). A plurality of conductive terminals 2 are fixed on the insulating body 1 and located at opposite sides of the accommodating cavity 10, and the conductive terminals 2 are provided with contact portions 21 protruding into the accommodating cavity 10 to contact with mating terminals (not shown) of a mating connector (not shown). The insulating body 1 is formed by plastic injection molding, and the conductive terminal 2 can be fixed on the insulating body 1 by adopting an assembly or in-film injection molding mode. The two metal shells 3 are assembled and fixed at two ends of the insulating body 1 respectively and used for shielding electromagnetic interference and improving signal transmission quality.

Referring to fig. 2, the insulating body 1 has a rectangular block shape, and includes a bottom wall 11 and a side peripheral wall 12 extending upward from the peripheral edge of the bottom wall 11, the bottom wall 11 and the side peripheral wall 12 enclose the housing cavity 10, and a plurality of conductive terminals 2 are fixed on opposite sides of the side peripheral wall 12. The side peripheral wall 12 is provided with a top surface 13, two opposite first outer side surfaces 14 and two opposite second outer side surfaces 15, and the two first outer side surfaces 14 and the two second outer side surfaces 15 enclose a rectangle. The metal shell 3 is made of a metal sheet and comprises a top wall 31, a side wall 32 bent downwards from the outer side edge of the top wall 31 and two extending walls 33 bent inwards from two ends of the side wall 32, wherein the side wall 32 and the two extending walls 33 form a U-shaped structure, and the top wall 31 is positioned in a U-shaped frame opening surrounded by the side wall 32 and the two extending walls 33. When assembled, the metal shell 3 is fixed downward to both ends of the insulating body 1, the top wall 31 of the metal shell 3 covers the top surface 13 of the side peripheral wall 12, the side wall 32 of the metal shell 3 covers the first outer side surface 14 of the side peripheral wall 12, and the two extension walls 33 of the metal shell 3 respectively cover the two second outer side surfaces 15 of the side peripheral wall 12. It should be noted that the covering here may be a partial covering, and that the second outer side 15 is jointly covered by two extending walls 33 of two metal shells 3, as shown in connection with fig. 2, i.e. the extending walls 33 of a single metal shell 3 cover approximately half of the second outer side 15. The metal shell of the electric connector is provided with the top wall, the side wall bent from the top wall and the extension wall bent from the side wall, so that the metal shell can be coated on the insulating body in multiple directions, comprises the corners of the insulating body, and has a better shielding effect.

As shown in fig. 3, in the present embodiment, the insulating body 1 extends substantially in a longitudinal direction, the housing chamber 10 also extends in a longitudinal direction, and the top walls 31 of the two metal cases 3 are located at both ends of the housing chamber 10 in the longitudinal direction. The top wall 31 of the metal shell 3 is provided with a U-shaped notch 34 that avoids the insertion opening of the accommodating chamber 10, so that the top wall 31 does not affect the insertion of the mating connector (not shown) into the accommodating chamber 10. Further, the top wall 31 is further provided with a guiding flange 35 extending downward at the edge of the notch 34, and the guiding flange 35 can be formed in a half-drawing manner, so as to guide the mating connector (not shown) to be smoothly inserted into the accommodating cavity 10.

Opposite side edges of the top wall 31 in the transverse direction are bent downwards to form a pair of clamping arms 36, two ends of the side peripheral wall 12 of the insulating body 1 are respectively provided with a pair of clamping grooves 16 correspondingly, and the clamping arms 36 are inserted into the clamping grooves 16 to position the metal shell 3 on the insulating body 1.

With continued reference to fig. 1 and 2, the bottom wall 11 is provided with two platform parts 17 located outside the side peripheral wall 12, and in this embodiment, the two platform parts 17 are located outside the two second outer side surfaces 15, respectively, and the platform parts 17 can support the metal shell 3 upward.

The insulating body 1 is further provided with a projection 18 extending upward from the platform 17, the projection 18 being connectable with the side peripheral wall 12. Correspondingly, the extending wall 33 of the metal shell 3 is provided with a recess 37 penetrating downwards, and the projection 18 is clamped into the recess 37 to prevent the metal shell 3 from moving longitudinally. The insulating body 1 is further provided with a limiting block 19 extending upwards from the platform part 17, a limiting groove 191 is formed between the limiting block 19 and the side peripheral wall 12, and the tail end 331 of the extending wall 33 is located in the limiting groove 191 and can prevent the metal shell 3 from moving transversely.

Each of the projections 18 is located near a longitudinal end portion of the insulating body 1, the stopper 19 is located at a longitudinal middle portion of the insulating body 1, the projections 18 are aligned with the stopper 19 in a longitudinal direction, the side peripheral wall 12 is recessed inward at a portion facing the stopper 19 to form the stopper groove 191, and the ends 331 of the two extending walls 33 of the corresponding metal shell 3 are bent toward each other to be inserted into the stopper groove 191.

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 (9)

1. The utility model provides an electric connector, includes insulator, sets up a plurality of conductive terminal and the setting respectively on the insulator are in two metal cases at insulator both ends, its characterized in that: the insulation body is provided with a top surface, two opposite first outer side surfaces and two opposite second outer side surfaces; the metal shell comprises a top wall, a side wall downwards bent from the outer side edge of the top wall and two extending walls inwards bent from the two ends of the side wall respectively, wherein the side wall and the two extending walls form a U-shaped structure, the top wall covers the top surface, the side wall covers the first outer side surface, and the two extending walls respectively cover the two second outer side surfaces.

2. The electrical connector of claim 1, wherein: the insulating body is provided with a bottom wall and a side peripheral wall extending upwards from the peripheral edge of the bottom wall, the bottom wall and the side peripheral wall are surrounded to form a containing cavity for containing the butt joint connector, and the conductive terminal is fixed on the side peripheral wall and is provided with a contact part protruding into the containing cavity.

3. The electrical connector of claim 2, wherein: the top wall is provided with a U-shaped notch avoiding the insertion opening of the accommodating cavity.

4. An electrical connector as in claim 3 wherein: the edge of the notch is provided with a guiding flanging extending downwards.

5. The electrical connector of claim 1, wherein: opposite side edges of the top wall are bent downwards to form a pair of clamping arms, two ends of the insulating body are respectively provided with a pair of clamping grooves in a corresponding mode, and the clamping arms are inserted into the clamping grooves.

6. The electrical connector of claim 2, wherein: the bottom wall is provided with a platform portion located outside the side peripheral wall, and the platform portion supports the metal shell.

7. The electrical connector of claim 6, wherein: the extension wall is provided with a notch penetrating downwards, the insulation body is correspondingly provided with a lug extending upwards from the platform part, and the lug is clamped into the notch.

8. The electrical connector of claim 7, wherein: the insulation body is provided with a limiting block extending upwards from the platform part, a limiting groove is formed between the limiting block and the side peripheral wall, and the tail end of the extending wall is positioned in the limiting groove.

9. The electrical connector of claim 8, wherein: the protruding blocks and the limiting blocks are aligned in the longitudinal direction.

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