CN202004177U - Electric connector - Google Patents

Abstract

An electric connector is provided with a socket hole, and it includes an insulating body and a plurality of conductive terminals accommodated in the insulating body. The conductive terminals include a first terminal group and a second terminal group that does not extend into the insertion hole. The first terminal group includes a first holding portion that is fixed on the insulating body, and a first holding portion that extends from the first holding portion into the insertion hole. The contact part and the first welding part extending out of the insulating body from the first holding part. The second terminal group includes a second holding portion fixed to the insulating body and a second welding portion extending out of the insulating body, and the second terminal group includes resistance terminals for connecting resistors on the circuit board, so that the connector achieves better signal Transmission quality.

Description

electrical connector

【Technical field】

The utility model relates to an electric connector, in particular to an electric connector connected on a circuit board.

【Background technique】

With the rapid development of electronic products, electrical connectors applied to electronic products are also widely used. For related prior art, please refer to an electrical connector disclosed in Taiwan Patent Announcement No. M347701, which includes an insulating body provided with a terminal receiving groove, a number of terminals held in the terminal receiving groove of the insulating body, and an electrical connector assembled in the insulating body. The shielding shell, the electrical connector is provided with nineteen conductive terminals, and each conductive terminal extends into the insertion hole to connect with the high-definition multimedia interface (HDMI) docking plug, but the traditional nineteen The signal transmission quality of the electrical connector with conductive terminals is low.

Therefore, it is necessary to design an electrical connector to solve the above technical problems.

【Content of invention】

The main purpose of the utility model is to provide an electrical connector with improved signal transmission quality.

In order to achieve the purpose of the above-mentioned utility model, the utility model adopts the following technical solution: an electrical connector is provided with a plug hole, which includes an insulating body and a plurality of conductive terminals accommodated in the insulating body, and the conductive terminals include a first terminal A group and a second terminal group that does not extend into the insertion hole. The first terminal group includes a first holding portion that is fixed on the insulating body, a first contact portion that extends from the first holding portion into the insertion hole, and a first contact portion that extends from the first holding portion. The first welding part extending out of the insulating body, the second terminal group includes a second holding part fixed on the insulating body and the second welding part extending out of the insulating body, the second terminal group includes a resistor for connecting the resistor on the circuit board terminals.

The second terminal group also includes a ground terminal adjacent to the resistance terminal.

The second welding portion of the resistance terminal is aligned with the first welding portion of the first terminal group.

The second welding portion of the ground terminal is aligned with the first welding portion of the first terminal group.

The second welding part of the resistance terminal, the second welding part of the ground terminal and the first welding part of the first terminal group are arranged in a row.

The first holding parts of the first terminal group are arranged in two rows parallel to each other, the second holding parts of the resistance terminals are arranged in a row with the first holding parts of the lower row of the first terminal group, and the second holding parts of the grounding terminals It is arranged in another row with the upper row of the first holding part of the first terminal group.

The second terminal group is located on the outermost side of the first terminal group, the second welding part of the ground terminal is located between the first welding part of the first terminal group and the second welding part of the resistance terminal, and the second holding part of the ground terminal Located above the second holding part of the resistor terminal.

The insulating body includes a main body and a tongue protruding forward from the main body. The tongue has an upper surface and a lower surface, and the first contact portions of the first terminal group are respectively arranged on the upper and lower surfaces of the tongue.

The electrical connector includes a metal shielding shell covering the insulating body, the metal shielding shell includes a top wall, a bottom wall opposite to the top wall, two side walls connected between the top wall and the bottom wall, and the main body of the insulating body There is a receiving hole that runs through the main body front and back in the middle of the main body, snap grooves that penetrate forward but not backward through the main body are provided on both sides of the main body, and a mounting part that extends backward and passes through the receiving hole is provided on the top wall. The side walls are respectively provided with barbs extending upwards and then bending inwards. The barbs are pressed against the buckle grooves to prevent the insulating body from moving upwards and forwards.

The electrical connector is an HDMI socket connector, the first terminal group is set to nineteen terminals, and the second terminal group is set to two terminals.

Compared with the prior art, the utility model has the following effects: the resistance terminals used to connect the resistance on the circuit board are added, so that the impedance of the electrical connector reaches a better value, and the signal transmission quality of the electrical connector is improved.

【Description of drawings】

FIG. 1 is a three-dimensional assembled view of the electrical connector of the present invention.

Figure 2 is similar to Figure 1, but taken from a different angle.

Fig. 3 is a three-dimensional exploded view of the electrical connector of the present invention.

Figure 4 is similar to Figure 3, but taken from another angle.

FIG. 5 is a three-dimensional exploded view of another angle of the electrical connector of the present invention.

【Detailed ways】

Please refer to Figures 1 to 5, the electrical connector 100 of the present invention is a high-definition multimedia interface (HDMI) socket connector, which is used to be installed on a circuit board (not shown) for mating plugs (not shown) shown) to plug in. The electrical connector 100 includes an insulating body 1 , a conductive terminal 2 accommodated in the insulating body 1 , and a metal shielding shell 3 covering the insulating body 1 .

The insulating body 1 includes a main body 10 and a tongue 11 protruding forward from the main body 10 . The tongue 11 has a horizontal upper surface 111 and a lower surface 112 opposite to the upper surface 111 . The main body 10 of the insulative housing 1 is provided with a plurality of retaining grooves 101 passing through front and back, and the upper and lower surfaces 111 , 112 of the tongue plate 11 are respectively provided with grooves 113 communicating with the retaining grooves 101 . The middle of the top of the main body 10 is provided with a positioning hole 104 that runs through the main body 10 back and forth, and the rear end of the main body 10 is provided with a plurality of convex ribs 102 that protrude backward, and the convex ribs 102 form a row of housings extending downwards. The slot 103 , the receiving slot 103 is located below the holding slot 101 . Both sides of the top of the main body 10 are provided with buckling grooves 105 that penetrate forward but not backward through the main body 10 , and an insertion hole 109 is formed between the tongue plate 11 and the shielding shell 3 for receiving a docking plug.

The conductive terminal 2 includes a first terminal group 21 and a second terminal group 22 adjacent to the first terminal group 21 . The first terminal group 21 is set to nineteen conductive terminals, conforming to the standard HDMI transmission protocol, which includes a first holding part 212 held in the holding groove 101, extending forward from the first holding part 212 and accommodated on the upper surface of the tongue plate 11 111 and the first contact part 211 in the groove 113 of the lower surface 112 and the first welding part 213 extending downward from the first holding part 212 to the main body part 10, the first holding part 212 is arranged in parallel up and down. Two rows, the first contact portions 211 are respectively exposed in the insertion holes 109 for contacting with the mating plugs.

The second terminal group 22 is set as two conductive terminals, which are respectively a resistance terminal 225 and a grounding terminal 226 adjacent to the resistance terminal 225. The rear ends of the two holding parts 222 extend downwards from the second welding part 223 of the insulating body 1 , and the second terminal group 22 is located at the outermost side of the first terminal group 21 . The second holding portion 222 of the grounding terminal 226 is located above the second holding portion 222 of the resistor terminal 225, and the second holding portion 222 of the grounding terminal 226 is arranged in a row with the upper row of the first holding portion 212 of the first terminal group 21, The second holding part 222 of the resistance terminal 225 is arranged in a row with the lower first holding part 212 of the first terminal group 21, and the second welding part 223 of the ground terminal 226 and the resistance terminal 225 is aligned with the first holding part 223 of the first terminal group 21. The welding parts 213 are also arranged in a row. The second welding part 223 of the ground terminal 226 is located between the second welding part 223 of the resistance terminal 225 and the first welding part 213 of the first terminal group 21. The first and second welding parts 213 and 223 are accommodated in the storage tank 103, respectively. Neither the resistance terminal 225 nor the grounding terminal 226 extends into the insertion hole 109, so when the mating plug is inserted into the insertion hole 109, the mating plug only contacts the first terminal group 21 mechanically and electrically, and will not contact the resistance terminal 225 and the first terminal group 21. The ground terminal 226 is mechanically and electrically connected. The ground terminal 226 is used for grounding, and the resistance terminal 225 is used for connecting a resistor on the circuit board, so that the impedance of the electrical connector 100 can reach a better value, and the electrical connector 100 can achieve better signal transmission quality.

The shielding shell 3 wraps around the outer side of the insulating body 1. The shielding shell 3 is formed by a metal sheet, which includes a top wall 31, a bottom wall 32 opposite to the top wall 31, and a top wall 31 connected to the bottom wall. The two side walls 33 between the walls 32 and the installation part 34 horizontally extending backward from the top wall 31 are respectively provided with barbs 331 extending upward and then inwardly. The positioning hole 104 of the housing 1 passes through to be fixed on the circuit board, and the barb portion 331 presses against the buckle groove 105 to prevent the insulating body 1 from moving upward and forward.

The above is only a specific embodiment of the present utility model, and any other improvements made on the premise of the concept of the present utility model are regarded as the protection scope of the present utility model.

Claims (10)

1. electric connector, be provided with spliced eye, it comprises insulating body and is contained in the interior plurality of conductive terminals of insulating body, described conducting terminal comprises the first terminal group and does not extend into second terminal group of spliced eye, the first terminal group comprises first holding parts that is immobilizated in insulating body, first contact site that extends into spliced eye from first holding parts reaches first weld part that extends insulating body from first holding parts, second terminal group comprises second holding parts that is immobilizated in insulating body and second weld part that extends insulating body, it is characterized in that: described second terminal group comprises the resistance terminal in order to the resistance on the connecting circuit plate.

2. electric connector as claimed in claim 1 is characterized in that: described second terminal group also comprises the earth terminal adjacent with resistance terminal.

3. electric connector as claimed in claim 1 is characterized in that: second weld part of described resistance terminal and first weld part of the first terminal group are arranged in a row.

4. electric connector as claimed in claim 2 is characterized in that: second weld part of described earth terminal and first weld part of the first terminal group are arranged in a row.

5. electric connector as claimed in claim 2 is characterized in that: first weld part of second weld part of described resistance terminal, second weld part of earth terminal and the first terminal group is arranged in a row.

6. electric connector as claimed in claim 2, it is characterized in that: first holding parts of described the first terminal group is lined up two rows that are parallel to each other, the following holding parts that ranked first of second holding parts of resistance terminal and the first terminal group is arranged in a row, and ranked first holding parts on second holding parts of earth terminal and the first terminal group and lines up another row.

7. electric connector as claimed in claim 2, it is characterized in that: described second terminal group is positioned at the outermost of the first terminal group, second welding position of earth terminal is between second weld part of first weld part of the first terminal group and resistance terminal, and second holding parts of earth terminal is positioned at second holding parts top of resistance terminal.

8. electric connector as claimed in claim 1, it is characterized in that: described insulating body comprises the hyoplastron that main part and autonomous body protrude out forward, hyoplastron is provided with upper surface and lower surface, and first contact site of the first terminal group is arranged the upper and lower surface that is located at hyoplastron respectively.

9. electric connector as claimed in claim 8, it is characterized in that: described electric connector comprises the metal shielding casing of coated insulation body, the metal shielding casing comprises roof, the diapire relative with roof, be connected in the two side between roof and the diapire, the accepting hole that runs through main part before and after being provided with in the middle of the main part of insulating body, the main part both sides are provided with to be run through forward but does not run through the buckle slot of main part backward, roof is provided with the installation portion that extends back and pass accepting hole, be respectively equipped with the aduncate overhead kick portion that extends upward earlier again on the two side, overhead kick portion is pressed in the buckle slot, in order to prevent that insulating body upwards and move forward.

10. as any described electric connector in the claim 1 to 9, it is characterized in that: described electric connector is the HDMI socket connector, and described the first terminal group is set to 19 butt, and second terminal group is set to two butt.

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