TWM564265U - Electrical connecter - Google Patents

Abstract

The present invention discloses an electrical connector including a circuit board, the front surface of the front end of the circuit board is convexly provided with at least one tongue portion, and the upper surface and the lower surface of the tongue portion are respectively provided with a plurality of gold arranged in a lateral direction. a finger, and the circuit board is mounted on an insulating base, and the insulating base is fixed with a plurality of rows of equally spaced guiding terminals, and one end of the guiding terminals is inserted on the circuit board, and Each of the gold finger phase circuits on the circuit board is turned on, and the other end of the conductive terminals is connected to the butted external device circuit, and the outer part of the tongue plate portion is sleeved with a connection kit, and the connection kit is processed by MIM. After being injection molded and fixed on the circuit board, the insulating base and the circuit board are assembled in a casing, and the top surface thereof is covered with a shielding plate. By setting the electrical connector of the present invention, the wear of the circuit board of the electrical connector is protected during the insertion and removal process, the service life of the electrical connector is increased, and external and internal noise electromagnetic interference can be prevented, and the connector is realized. Stable transmission.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a connection kit.

According to USB, USB is a common interface for input and output in connectors. It supports hot plugging and plug-and-play functions, and plays a very convenient role in various fields and life.

The conventional USB connector connection end uses a connection terminal as a main transmission component, and the tongue plate portion is mainly an extension of the circuit board. In use, since the circuit boards of the male and female ends are directly contacted during the insertion and removal process, it is easy to mutually The board is subject to wear and tear, resulting in defects in use.

Therefore, a USB connector must be provided to protect the tongue portion of the USB connector to increase the life of the USB connector.

The purpose of the present invention is to provide a USB connector for the defects and deficiencies of the prior art. By adding a protection device, the tongue plate portion of the circuit board is not subjected to wear during use, thereby increasing the service life.

In order to achieve the above object, the present invention discloses an electrical connector including a circuit board, a front surface of a front end of the circuit board is convexly provided with at least one tongue portion, and an upper surface and a lower surface of the tongue portion are respectively provided with a plurality of tongues a gold finger arranged in a horizontal direction, and the circuit board is mounted on an insulating base, and the plurality of conductive terminals arranged in a plurality of rows and equally spaced are fixed on the insulating base, and one end of the conductive terminals is inserted in the circuit The board is electrically connected to the gold finger phase circuit on the circuit board, and the other end of the conductive terminal is connected to the external device circuit of the docking, and the outer part of the tongue portion is sleeved with a connection kit. The kit is injection molded and fixed on the circuit board by the MIM process. The insulating base and the circuit board are assembled in a casing, and the top surface thereof is covered with a shielding plate.

As described above, the present electrical connector is injection molded by the MIM process and fixed on the circuit board to protect the circuit board of the electrical connector from being worn during the plugging process, and the electrical connector is increased. The service life, at the same time, the use of the shielding plate can also prevent external and internal noise electromagnetic interference, and achieve stable transmission of the connector.

To clarify the technical content, structural features, objectives, and effects of the present invention, the embodiments are described in detail below with reference to the drawings.

Referring to the first to third figures, the electrical connector 100 of the present invention includes an insulating base 1, a plurality of guiding terminals 2, a circuit board 3, a connecting kit 5, a casing 6, and a shielding plate 7. And an outer cover 8.

Referring to the second figure, the insulating base 1 is a rectangular plastic seat, and a plurality of first holes 11 are defined in the middle for fixing the guiding terminal 2 therein; the front end of the insulating base 1 is long. A fixing post 12 formed by extending upward and downward is provided on both sides of the front surface for assembling other components into a complete electrical connector 100. Each of the guiding terminals 2 includes a guiding portion 21, an outer connecting portion 22 and a fixing portion 23. The guiding terminal 2 is a linear columnar terminal, the upper half is a guiding portion 21, and the lower half is an external portion 22. In the middle, the fixing portion 23 is slightly convex toward the left and right sides.

Referring to the second and fourth figures, in the embodiment, the circuit board 3 is a rectangular board conforming to the USB Type C specification, and the middle of the circuit board 3 corresponds to the plurality of first holes 11 of the insulating base 1 A plurality of second holes 31 are provided for receiving the guiding portion 21 of the guiding terminal 2 assembled on the insulating base 1; the circuit board 3 is composed of the substrate body 32, the metal layer 33 and the glue layer 34 is sequentially stacked, and the metal layers 33 are respectively coated on the upper and lower sides of the substrate body 32, and the enamel coating layer 34 is separately coated on the metal layer 33. The front side of the front end of the front surface of the substrate body 32 extends outwardly to form at least one tongue portion 35. In this embodiment, two tongue portions 35 are formed extending at a certain distance, and the tongue portions 35 are adjacent to both sides thereof. The front surface of the substrate body is provided with two convex fixing blocks 351, and the upper and lower sides of the front end of the tongue plate portion 35 respectively have a plurality of gold fingers 4 respectively spaced apart from each other, and the gold fingers 4 pass through the circuit on the circuit board 3 (Fig. It is connected to the conduction terminal 2 for conduction and transmission. Compared with the terminals used in the past, the transmission is realized by high transmission and low contact impedance.

In the present creation, the metal layer 33 extends to a position about half of the tongue portion 35 to form a fusion surface 321 . The circuit board 3 is provided with a first fixing hole 36 at a position corresponding to the fixing post 12 of the insulating base 1 .

Please refer to the second and sixth figures, wherein the connection kit 5 is integrally molded by MIM (Metal Powder Injection Molding) technology and then fixed on the circuit board 3, and the material is SUS630 (marrsite precipitation hardening stainless steel). The base 51 includes a fixing slot 511 and an opening 52. The fixing slot 511 is disposed on the left and right sides of the bottom of the base and corresponds to the position of the fixing block 351 of the circuit board 3. The opening 52 It is opened in the middle of the base 51. The accommodating groove 53 extends outwardly to form a receiving groove 53 for covering and accommodating the tongue portion 35 of the circuit board 3; the two sides of the receiving groove 53 extend outward and face each other. The directional direction is connected to form a fixing portion 54 and encloses a hollow accommodating space 541. The fixing portion 54 is used for attaching and fixing the connecting kit 5 to the tongue portion 35 of the circuit board 3, and accommodating the space. The gold finger 4 is exposed in 541.

Please refer to the second, third and fourth figures, wherein the outer casing 6 is used for covering and accommodating the assembled insulating base 1 and the circuit board 3. The outer casing 6 has a bottom plate 61, and the four sides of the bottom plate 61 extend upward. Forming a stepped first side wall 62, the first side wall 62 has a positioning groove 63 at a position corresponding to the fixing post 12 of the insulating base 1 on the two sides of the long side, and a plurality of external holes 64 are formed in the bottom portion for externally The part is connected to the external portion 22 of the lead terminal 2. The shielding plate 7 is a rectangular metal plate and is assembled on the circuit board 3. The second fixing hole 71 is disposed at the fixing column 12 of the insulating base 1 on both sides of the long side, and the inner surface of the shielding plate 7 is coated. Covered with a layer of polyester film 72, the polyester film 72 serves to shield the noise from being disturbed by high frequency noise from the inside and outside. The outer cover 8 is used to cover the tongue plate portion 31 and the connecting sleeve 5 in the assembled circuit board 3 for protecting the golden finger 4 in the tongue portion 31 from being damaged during transportation. The outer cover 8 has a front plate 81, and the front plate 81 extends inwardly to form a second side wall 82.

Please refer to the first and seventh figures, wherein the first fixing hole 36 of the circuit board 3, the second fixing hole 71 of the shielding plate 7, and the positioning groove 63 of the outer casing 6 correspond to the fixing post 12 of the insulating base 1. When the device is assembled, the first fixing hole 36 of the circuit board 3 is first installed in the fixing post 12 of the insulating base 1 to assemble and fix the circuit board 3 and the insulating base 1; The insulating base 1 is covered with the circuit board 3, and the fixing post 12 of the insulating base 1 is assembled and fixed in the positioning groove 63 of the outer casing 6. Finally, the second fixing hole 71 of the shielding plate 7 is assembled and fixed to the insulation. The mounting of the electrical connector 100 is accomplished in the mounting post 12 of the base 1 as the top cover of the electrical connector 100.

Referring to FIG. 5, when the conductive terminal 2 is assembled with the insulating base 1, the external terminal portion 22 of the conductive terminal 2 is passed through the first hole 11 of the insulating base 1 when the external portion 22 is along the first hole. When the insertion portion 11 is continuously inserted, since the fixing portion 23 protrudes from the left and right sides of the guiding terminal 2, the space of the first hole 11 is slightly larger, so that the fixing portion 23 is received and fixed in the first hole 11, so that the guiding portion 23 is guided. The terminal 2 is fixed in the first hole 11 of the insulating base 1.

Referring to the sixth and seventh figures, the connection kit 5 is made of MIM (Metal Powder Injection Molding) technology, and the material is SUS630 (marrsite precipitation hardening stainless steel), compared with the material of the electric wood board, glass The fiberboard or various plastic plates are mainly used for the circuit board 3, which is more wear-resistant during the process of plugging and unplugging, so that the service life of the circuit board 3 is increased. In addition to the above structure, the inner side of the accommodating groove 53 is a zigzag inner wall 531 formed by a plurality of groove arrangements for increasing the surface area of the soldering surface; when assembling, the fixing groove 511 of the connecting kit 5 is assembled and fixed. On the fixing block 341 on the circuit board 3, the jagged internal wall 531 of the connection kit 5 and the fusion surface 311 of the metal layer 31 on the tongue portion 34 of the circuit board 3 are fused and fixed to each other by solder paste.

Referring to the seventh figure, a plurality of second holes 31 are formed in the first hole 11 corresponding to the insulating base 1 in the middle of the circuit board 3 for connecting the tongue of the guiding terminal 2 assembled on the insulating base 1. The plate portion 21 is accommodated therein, and after the solder paste is melted in the second hole 31 by SMT (Surface Adhesion Technology), the circuit board 3 and the tongue portion 21 of the lead terminal 2 are connected and fixed.

In summary, the present electrical connector 100 is injection molded by the MIM process and fixed on the circuit board 3 to protect the circuit board 3 of the electrical connector 100 from being worn during the plugging process. The service life of the electrical connector 3 is increased. At the same time, the arrangement of the shielding plate 7 can also prevent external and internal noise electromagnetic interference, thereby achieving stable transmission of the connector.

100‧‧‧Electrical connector

1‧‧‧Insulated base

2‧‧‧Connecting terminal

3‧‧‧Circuit board

4‧‧‧Gold Finger

5‧‧‧Connecting kit

6‧‧‧Shell

7‧‧‧Shield

8‧‧‧ Cover

11‧‧‧First hole

12‧‧‧Fixed column

31‧‧‧Second hole

21‧‧‧Guidance

22‧‧‧External Department

23‧‧‧ Fixed Department

32‧‧‧Substrate body

33‧‧‧metal layer

331‧‧‧Function

34‧‧‧Glue layer

35‧‧ ‧ tongue plate

351‧‧‧Fixed block

36‧‧‧First fixing hole

51‧‧‧Base

511‧‧‧fixed slot

52‧‧‧ openings

53‧‧‧ accommodating slots

531‧‧‧ inner wall

54‧‧‧Fixed Department

541‧‧‧ accommodating space

61‧‧‧floor

62‧‧‧First side wall

63‧‧‧ positioning slot

64‧‧‧External hole

71‧‧‧Second fixing hole

72‧‧‧ Polyester film

81‧‧‧ front board

82‧‧‧ second side wall

The first picture is a perspective view of the electrical connector of the present creation. The second figure is an exploded perspective view of the electrical connector of the present invention. The third figure is a partially enlarged cross-sectional view of the circuit board of the present electrical connector. The fourth figure is a partially enlarged cross-sectional view of the shield plate of the present electrical connector. The fifth figure is an assembled perspective view of the insulating base and the lead terminals of the present electrical connector. The sixth figure is a partially enlarged perspective view of the connection kit of the present electrical connector. The seventh figure is an assembled perspective view of the present electrical connector.

Claims (9)

An electrical connector includes: an insulating base, wherein the insulating base is provided with a plurality of equally spaced guiding terminals; a circuit board, the circuit board is disposed above the insulating base, and the conductive terminals are The circuit board is inserted, and one end of the circuit board extends outwardly to form at least one tongue portion, and at least one side of the front end of the tongue portion has a plurality of gold fingers arranged side by side, and the gold fingers are connected by circuits on the circuit board. a plurality of connecting terminals are correspondingly turned on; a connecting kit is integrally injection molded by a metal powder injection molding technique, and the connecting kit is sleeved on a tongue portion of the circuit board, and the connecting kit is surrounded by a hollow The accommodating space, the gold finger on the tongue portion is exposed outside the accommodating space; a casing for covering the insulating base and the circuit board; a shielding plate covering the casing to make the insulation The base and the circuit board are enclosed in the outer casing. The electrical connector of claim 1, wherein the insulating base is provided with a plurality of first holes; the circuit board is a rectangular plate, and the first hole corresponding to the insulating base is at the middle Each of the guiding terminals is respectively inserted into a first hole provided in the insulating base, and each of the guiding terminals includes a guiding portion, an external portion and a fixing portion, and the guiding portion The terminal is a linear columnar terminal, and the fixing portion is inserted into the first hole in the insulating base, the guiding portion is inserted into the second hole provided on the circuit board, and the external portion is exposed Inside the enclosure. The electrical connector of claim 1, wherein the circuit board is formed by sequentially stacking a substrate body, a metal layer and a glue layer, and the metal layers are respectively coated on the upper and lower sides of the substrate body. The glue layer is coated on the metal layer separately. The electrical connector of claim 3, wherein the metal layer extends to a position about half of the tongue portion to form a fusion surface. The electrical connector of claim 1, wherein a front side of the front side of the front end of the insulating base is provided with a fixing post extending upward and downward; and the circuit board corresponds to the insulating base a first fixing hole is disposed at a position of the fixing column; a second fixing hole is disposed at a fixing column corresponding to the insulating base on both sides of the long side of the shielding plate; and the fixing column of the insulating base is corresponding to the inner side of the long side of the outer casing The positioning slot is disposed at the position, the first fixing hole of the circuit board is installed in the fixing column of the insulating base, the outer casing covers the insulating base together with the circuit board from bottom to top, and the fixing column of the insulating base is assembled and fixed. The second fixing hole of the shielding plate is assembled and fixed in the fixing post of the insulating base. The electrical connector of claim 1, wherein the connection kit comprises a base, the base includes an opening, the opening is open at a middle position of the base, and the opening is peripherally outward Extending to form a receiving groove for covering and accommodating the tongue portion of the circuit board, the two sides of the receiving groove are outwardly extended and connected to each other to form a fixing portion, and a surrounding portion is formed The hollow accommodation space. The electrical connector of claim 6, wherein the left and right sides of the base of the base are provided with fixing grooves, and the front surface of the circuit board beside the two sides of the tongue plate portion is corresponding to the fixing groove. There are two raised fixing blocks, and the fixing slots of the connecting kit are assembled and fixed on the fixing blocks on the circuit board. The electrical connector of claim 1, wherein the shielding plate is a rectangular metal plate, and the inner surface of the shielding plate is coated with a layer of polyester film. The electrical connector of claim 1, further comprising an outer cover sleeved on the connection kit, the outer cover having a front plate, the front periphery of the front plate extending inwardly to form a second Side wall.