CN212571485U - Electrical connector - Google Patents

Abstract

The utility model provides an electric connector, including insulator, install in insulator internal terminal, with insulator complex location body, cover in insulator outlying metal casing and cover the metal covering body on location body and metal casing, insulator is equipped with the tongue plate of stretching forward and the protruding a pair of extension arm that stretches out backward, the extension arm with location body buckle cooperation, the both sides of the metal covering body be equipped with extension arm buckle complex buckle piece. Compared with the prior art, the utility model discloses a buckle cooperation between insulator, the location body and the metal cover body, greatly increased connection compactness and bonding strength each other, improved the connection reliability of connector, the too big condition of adaptable frequent plug or plug power.

Description

Electrical connector

Technical Field

The utility model relates to an electric connection field especially relates to an electric connector.

Background

With the development trend of miniaturization and lightness of consumer electronic products such as notebook computers, tablet computers, mobile phones and the like, the requirements on the design and manufacturing process of parts of the consumer electronic products are higher and higher, and as the products are lighter and thinner day by day, the internal space of the consumer electronic products is very narrow, so that the requirement that the internal parts of the consumer electronic products are required to adopt a dense layout is met, the volume of each electronic part is smaller and thinner, and the requirements on the reliability of the manufacturing process and the connection of the consumer electronic products are higher and higher. For a connector which needs to be plugged and unplugged frequently, the reliability of the connector is very important, for example, a USB connector is often subjected to frequent plugging and unplugging operations, and in order to ensure the stability of electrical connection, a strong plugging force needs to be designed, which increases the damage to the connector, for example, when the plugging force is too large, an insulating body of the connector is easily broken or damaged, or a problem of loose connection among parts such as an insulating body, a housing, and a terminal inside the connector occurs, so how to enhance the strength of the connector itself and the tightness and reliability of an internal connection structure thereof, so as to meet the application requirement of frequent plugging and unplugging or large plugging force, is one of the important problems which needs to be considered in the current design process of the USB connector.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric connector, it can improve the compactness and the reliability of internal connection relation, and then improves the reliability of connector.

In order to solve the technical problem, the utility model adopts the following technical scheme: an electric connector comprises an insulating body, a terminal arranged in the insulating body, a positioning body matched with the insulating body, a metal shell covering the periphery of the insulating body and a metal cover body covering the positioning body and the metal shell, wherein the insulating body is provided with a tongue plate protruding forwards and a pair of extension arms protruding backwards, the extension arms are matched with the positioning body in a buckling mode, and buckling pieces matched with the extension arms in a buckling mode are arranged on two sides of the metal cover body.

Furthermore, the outer wall surface of the extension arm is provided with a protruding part protruding outwards, and the buckling pieces are formed by bending downwards from two sides of the metal cover body and are in buckling fit with the protruding part.

Furthermore, two sides of the positioning body are provided with notches matched with the extension arms.

Further, the extension arm is including the base arm that is the horizontal extension and the location arm that upwards protrudes perpendicularly from the base arm, base arm and location arm be integrative injection moulding's structure, just the location arm accept in the notch to the realization is spacing to the location body on the horizontal direction.

Furthermore, the front end of the metal cover body is covered on the surface of the metal shell, and the rear end of the metal cover body is covered on the surface of the positioning body; and the buckle sheet of the metal cover body is provided with an opening matched with the bulge part in a buckle way.

Furthermore, the insulating body is provided with a slot, a strip-shaped reinforcing sheet is accommodated in the slot, bending parts are arranged at two ends of the reinforcing sheet, and the bending parts are in lap joint with the metal shell.

Further, the bottom arms of the pair of extension arms are arranged in parallel with each other, and a mounting area for accommodating the tail portion of the terminal is formed between the bottom arms and the extension arms.

Compared with the prior art, the utility model discloses a buckle cooperation between insulator, the location body and the metal cover body, greatly increased connection compactness and bonding strength each other, improved the connection reliability of connector, the too big condition of adaptable frequent plug or plug power.

Drawings

Fig. 1 is a perspective view of the electrical connector of the present invention.

Fig. 2 is a schematic diagram of the electric connector after the metal cover and the positioning body are removed.

Fig. 3 is a schematic view of the fitting between the insulating body and the positioning body of the electrical connector of the present invention.

Fig. 4 is an exploded view of the electrical connector of the present invention.

Detailed Description

Referring to fig. 1 to 4, the present invention provides an electrical connector, which includes an insulating body 10, a terminal 20 fixed in the insulating body 10, a positioning body 30 engaged with the insulating body 10, a metal housing 40 covering the surface of the insulating body 10, and a metal cover 50 covering the surface of the metal housing 40, wherein the terminal 20 extends out of the insulating body 10 for being soldered to a circuit board (not shown), the metal housing 40 surrounds the insulating body 10 to achieve a signal shielding effect, and the metal cover 50 covers the metal housing 40 from the outside and is fixed to the circuit board.

The insulating body 10 is provided with a base portion 11 and a tongue plate 12 extending forward from the base portion 11, wherein a pair of extension arms 13 protruding backward are provided at the left and right ends of the base portion 11 for positioning and matching with the positioning body 30, the extension arms 13 include a bottom arm 131 extending horizontally and a positioning arm 132 protruding upward and vertically from the bottom arm 131, the positioning arm 132 and the base portion 11 are of an integral injection molding structure, the outer wall surface of the extension arm 13 is provided with a protruding portion 133 protruding outward, the protruding portion 133 is used for being snap-fitted with the metal cover 50, the bottom arms 131 of the two extension arms 13 are arranged in parallel, and a mounting region 134 accommodating the tail portion of the terminal is formed between the two extension arms; in addition, the top surface of the base 11 is distributed with the separating strips 14 arranged at equal intervals, the separating strips 14 protrude from the top surface of the base 11, the top surface of the base 11 is also distributed with the slots 15 positioned at the front sides of the separating strips 14, the slots 15 are arranged adjacent to the separating strips 14, the length extending direction of the slots 15 is perpendicular to the length extending direction of the separating strips 14, and the slots 15 penetrate through the base 11 from left to right. The tongue 12 is provided with a plurality of terminal grooves 16 on its surface for receiving the terminals 20.

The terminal 20 is provided with a fixed arm 22, a contact arm 23 extending forward from the fixed arm 22, and a mounting arm 24 (i.e., a terminal tail) extending backward from the fixed arm 22, wherein the fixed arm 22 extends horizontally and is in clamping fit with the base portion 11 of the insulating body 10, the contact arm 23 extends to the tongue plate 12, and a distal end of the contact arm 23 is exposed on a surface of the tongue plate 12 so as to be plugged into a mating end electrical connector. The mounting arm 24 extends obliquely from the rear end of the fixing arm 22 for soldering to a circuit board.

In order to make the insulating body 10 have better strength, in the preferred embodiment of the present invention, the electrical connector further includes a reinforcing plate 60 held in the slot 15, the reinforcing plate 60 is in a strip shape and extends from one end of the slot 15 to the other end of the slot 15, and both ends of the reinforcing plate 60 are respectively provided with a bending portion 61 formed by bending forward, the bending portion 61 is attached to the left and right sides of the base portion 11, and is fixed to the metal shell 30 by spot welding. The reinforcing plate 60 is embedded in the base 11, which can greatly increase the strength of the base 11 and prevent the damage to the inside of the insulating body 10 caused by excessive insertion force during the insertion and extraction process of the electrical connector.

The positioning body 30 is mounted at the rear end of the insulating body 10, covers the base 11, and is clamped and matched with the base 11, wherein notches 31 matched with the positioning arms 132 in a positioning manner are formed in two sides of the positioning body 30.

The front end of the metal cover body 50 is installed on the metal shell 40, the rear end of the metal cover body is installed on the positioning body 30, a pair of mounting plates 51 which are formed by outwards turning are arranged at the front end and the rear end of the metal cover body 50 and used for being fixedly connected with a circuit board, and a fixing hole 52 is formed in each mounting plate 51. In addition, the metal cover 50 is provided with a main body portion 53 covering the surface of the positioning body 30, and buckling pieces 54 formed by bending are arranged on two sides of the main body portion 53, the buckling pieces 54 are provided with openings 55 in buckling fit with the protrusions 133, and the metal cover 50 and the positioning body 30 are combined through the openings 55.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the technical solution of the present invention without departing from the scope of the technical solution of the present invention.

Claims (7)

1. An electric connector comprises an insulating body, a terminal arranged in the insulating body, a positioning body matched with the insulating body, a metal shell covering the periphery of the insulating body and a metal cover body covering the positioning body and the metal shell.

2. The electrical connector of claim 1, wherein: the outer wall surface of the extension arm is provided with a protruding part protruding outwards, and the buckling pieces are formed by bending downwards from two sides of the metal cover body and are in buckling fit with the protruding part.

3. The electrical connector of claim 2, wherein: and notches matched with the extension arms are arranged on two sides of the positioning body.

4. The electrical connector of claim 3, wherein: the extension arm is including the base arm that is the horizontal extension and the location arm that upwards protrudes perpendicularly from the base arm, base arm and location arm are injection moulding's structure as an organic whole, just the location arm accept in the notch to the realization is spacing to the location body on the horizontal direction.

5. The electrical connector of claim 4, wherein: the front end of the metal cover body is covered on the surface of the metal shell, and the rear end of the metal cover body is covered on the surface of the positioning body; and the buckle sheet of the metal cover body is provided with an opening matched with the bulge part in a buckle way.

6. The electrical connector of claim 5, wherein: the insulating body is provided with a slot, a strip-shaped reinforcing sheet is accommodated in the slot, bending parts are arranged at two ends of the reinforcing sheet, and the bending parts are in lap joint with the metal shell.

7. The electrical connector of claim 6, wherein: the bottom arms of the pair of extension arms are arranged in parallel with each other, and a mounting area for accommodating the tail portion of the terminal is formed between the bottom arms and the extension arms.

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