CN215989312U

CN215989312U - Electrical connector

Info

Publication number: CN215989312U
Application number: CN202122292168.2U
Authority: CN
Inventors: 陈昌耀; 姜慧; 吴祝平; 方志宏
Original assignee: Drapho Electronics Technology Co ltd
Current assignee: Drapho Electronics Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-08
Anticipated expiration: 2031-09-23

Abstract

The present invention provides an electrical connector comprising: the terminal comprises an insulating body, a terminal accommodated in the insulating body and a metal shell coated on the insulating body, wherein the insulating body is provided with a base part and a butt-joint tongue plate extending forwards from the base part, the terminal is provided with a welding pin extending downwards out of the insulating body to be welded and fixed with a circuit board, the base part is provided with an installation part arranged on the circuit board and a pair of supporting parts positioned at the left side and the right side of the installation part, and the supporting parts are provided with supporting surfaces facing the circuit board and a glue hiding groove formed by upwards recessing from the supporting surfaces. Compared with the prior art, the glue hiding grooves are formed in the supporting portion at the bottom of the insulating body, so that the insulating body can be better installed on a circuit board, glue can be contained in the glue hiding grooves in a glue dispensing process before SMT surface welding, and the problem that the adhesive force and the attractiveness of the supporting portion are affected due to the fact that glue flows everywhere is avoided.

Description

Electrical connector

Technical Field

The utility model relates to the field of electrical connection, in particular to an electrical 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. Taking a USB connector as an example, the bottom of the existing USB electrical connector is used for being soldered on a circuit board, and is usually provided with a flat supporting surface, and before SMT surface soldering, the supporting surface is usually subjected to dispensing treatment first, and since the supporting surface is a plane, glue is likely to flow during dispensing treatment, so that the area near the supporting surface is filled with glue, which greatly affects the appearance, and more seriously, the adhesive force is affected due to the flowing of glue, so that the electrical connector is likely to fall.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric connector, which aims to solve the problems that the bottom of the electric connector in the prior art is influenced by the overflow of glue to affect the bonding force and destroy the aesthetic property.

In order to solve the technical problems, the utility model adopts the following technical scheme: an electrical connector, comprising: the terminal comprises an insulating body, a terminal accommodated in the insulating body and a metal shell coated on the insulating body, wherein the insulating body is provided with a base part and a butt-joint tongue plate extending forwards from the base part, the terminal is provided with a welding pin extending downwards out of the insulating body to be welded and fixed with a circuit board, the base part is provided with an installation part arranged on the circuit board and a pair of supporting parts positioned at the left side and the right side of the installation part, and the supporting parts are provided with supporting surfaces facing the circuit board and a glue hiding groove formed by upwards recessing from the supporting surfaces.

Further, the installation department is equipped with one side the installation bottom surface of circuit board, the installation bottom surface certainly the left side of insulator extends to the right side, the supporting part is protruding downwards and is surpassed the installation bottom surface.

Further, the supporting surface and the installation bottom surface are parallel to each other, and the supporting surface is lower than the installation bottom surface in the vertical direction.

Further, the welding feet of the terminal are distributed on the installation bottom surface of the installation part.

Furthermore, the base part is also provided with a positioning column positioned on one side of the supporting part, the positioning column is connected with the supporting part and integrally connected with each other, and the positioning column protrudes downwards to exceed the supporting part.

Furthermore, the metal shell is provided with a top wall, a bottom wall and a pair of side walls, the top wall, the bottom wall and the side walls jointly enclose a splicing cavity, and the side walls are provided with folding arms folded outwards.

Furthermore, the electric connector also comprises a metal outer cover arranged on the metal shell, and the metal outer cover is provided with a positioning hole for accommodating the folding arm.

Furthermore, the metal outer cover is provided with a U-shaped main body part and a rear baffle plate positioned at the rear side of the U-shaped main body part, the U-shaped main body part is provided with a top plate and a pair of side plates formed by downwards bending and extending from the left side and the right side of the top plate, and the rear baffle plate is formed by downwards bending and extending from the rear side edge of the U-shaped main body part.

Furthermore, the locating hole is formed in the side plate, a pair of fixing arms which are formed by folding and extending forwards are arranged on the left side and the right side of the rear baffle, and the fixing arms are mutually matched with the side plate in a buckling mode.

Compared with the prior art, the glue hiding grooves are formed in the supporting portion at the bottom of the insulating body, so that the insulating body can be better installed on a circuit board, glue can be contained in the glue hiding grooves in a glue dispensing process before SMT surface welding, and the problem that the adhesive force and the attractiveness of the supporting portion are affected due to the fact that glue flows everywhere is avoided.

Drawings

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

Fig. 2 is an exploded perspective view of the electrical connector of the present invention.

Fig. 3 is an enlarged view of a portion of the electrical connector shown in fig. 2 in the area of the dashed box.

Detailed Description

Referring to fig. 1 to 3, the present invention provides an electrical connector, including an insulating body 10, a terminal 20 accommodated in the insulating body 10, a metal shell 30 covering the insulating body 10, and a metal cover 40 mounted on the metal shell 30, wherein the insulating body 10 fixes the terminal 20 therein and is mounted on a circuit board, and the terminal 20 is fixed to the circuit board by using a welding force between the terminal 20 and the circuit board, and the metal shell 30 is used to increase an overall strength of the electrical connector and also increase a connection force between the metal shell and the circuit board.

The insulating body 10 is provided with a base portion 11 mounted on a circuit board and a butt tongue plate 12 extending forward from the base portion 11, the base portion 11 is provided with a mounting portion 13, supporting portions 14 located at the left and right sides of the mounting portion 13, and a positioning post 15 located at one side of the supporting portion 14 and protruding downward, the mounting portion 13 is provided with a mounting bottom surface 16 facing the circuit board, and the mounting bottom surface 16 extends from the left side to the right side of the insulating body 10, so that the soldering pins 21 of the terminals 20 can be arranged on the mounting bottom surface 16 from left to right. The supporting part 14 certainly the basal portion 11 is the protruding formation downwards, just the supporting part 14 is protruding to be stretched downwards and is surpassed installation bottom surface 16, the supporting part 14 is equipped with one side to the holding surface 17 of circuit board, holding surface 17 with installation bottom surface 16 is parallel to each other, is smooth surface, nevertheless the holding surface 17 is less than in vertical direction installation bottom surface 16, preferably, the supporting part 14 still is equipped with one and hides gluey recess 18, hide gluey recess 18 certainly the holding surface 17 is upwards sunken to form, forms a accommodation space. The positioning posts 15 are arranged adjacent to the supporting portion 14 and integrally connected with each other, and the positioning posts 15 protrude downwards to exceed the supporting surface 17.

The metal shell 30 has a top wall 31, a bottom wall 32 and a pair of side walls 33, the top wall 31, the bottom wall 32 and the side walls 33 together enclose a plugging cavity 34, the top wall 31, the bottom wall 32 and the side walls 33 surround the periphery of the insulating body 10, so that the mating tongue plate 12 is located in the plugging cavity 34 for mating with a mating electrical connector (not shown). The side wall 33 is provided with a folding arm 35 protruding outwards, and the folding arm 35 is formed on the side wall 33 in a tearing and forming mode and used for being in snap fit with the metal outer cover 40 to realize mutual limiting of the metal outer cover 40 and the metal shell 30.

The metal outer cover 40 is provided with a U-shaped main body portion 41 and a rear baffle 42 located at the rear side of the main body portion 41, the U-shaped main body portion 41 is provided with a top plate 43 and a pair of side plates 44 formed by bending and extending downward from the left and right sides of the top plate 43, and the rear baffle 42 is formed by bending and extending downward from the rear side edge of the main body portion 41 and is used for shielding the rear of the insulation body 10. The top plate 43 covers the top wall 31 of the metal shell 30, and the side plate 44 covers the side wall 33 of the metal shell 30, wherein the side plate 44 is provided with a positioning hole 45 matched with the folding arm 35, so that the folding arm 35 can be clamped in the positioning hole 45. A pair of fixing arms 46 which are folded and extended forward are arranged on the left side and the right side of the rear baffle 42, the fixing arms 46 are in snap fit with the side plates 44, and a notch 47 is also formed in each fixing arm 46 and used for clamping the limiting arm on the side plate 44 into the notch 47.

In summary, the insulation body 10 can be better mounted on the circuit board by forming the glue hiding groove 18 on the supporting portion 14 at the bottom of the insulation body 10, and the glue hiding groove 18 can be used for accommodating glue before the SMT surface soldering, so that the problem that the adhesive force and the appearance of the supporting portion 14 are affected due to the flowing of glue is avoided.

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 present invention without departing from the scope of the present invention as defined in the appended claims.

Claims

1. An electrical connector, comprising: insulator, accept terminal in insulator and cladding metal casing on insulator, insulator is equipped with a basal portion and the butt joint hyoplastron that extends forward from the basal portion, the terminal is equipped with the welding foot that extends insulator downwards in order to weld with a circuit board welded fastening, its characterized in that: the basal portion be equipped with install in installation department on the circuit board and be located a pair of supporting part of installation department left and right sides, the supporting part is equipped with one and faces the holding surface of circuit board reaches certainly the recessed glue hiding recess that forms of holding surface.

2. The electrical connector of claim 1, wherein: the installation department is equipped with one side to the installation bottom surface of circuit board, the installation bottom surface certainly insulator's left side extends to the right side, supporting part downwardly protruding stretches and surpasss the installation bottom surface.

3. The electrical connector of claim 2, wherein: the supporting surface is parallel to the installation bottom surface, and the supporting surface is lower than the installation bottom surface in the vertical direction.

4. The electrical connector of claim 3, wherein: the welding feet of the terminal are distributed on the installation bottom surface of the installation part.

5. The electrical connector of claim 4, wherein: the base part is further provided with a positioning column located on one side of the supporting part, the positioning column is connected with the supporting part and integrally connected with the supporting part, and the positioning column protrudes downwards to exceed the supporting part.

6. The electrical connector of claim 5, wherein: the metal shell is provided with a top wall, a bottom wall and a pair of side walls, the top wall, the bottom wall and the side walls jointly enclose a splicing cavity, and the side walls are provided with folding arms which are outwards folded.

7. The electrical connector of claim 6, wherein: the electric connector also comprises a metal outer cover arranged on the metal shell, and the metal outer cover is provided with a positioning hole for accommodating the folding arm.

8. The electrical connector of claim 7, wherein: the metal outer cover is provided with a U-shaped main body part and a rear baffle positioned on the rear side of the U-shaped main body part, the U-shaped main body part is provided with a top plate and a pair of side plates formed by downwards bending and extending the left side and the right side of the top plate, and the rear baffle is formed by downwards bending and extending the rear side edge of the U-shaped main body part.

9. The electrical connector of claim 8, wherein: the locating hole is formed on the side plate, a pair of fixed arms which are formed by folding and extending forwards are arranged on the left side and the right side of the rear baffle, and the fixed arms are mutually matched with the side plate in a buckling mode.