TWI568108B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a thinning effect.

The electrical connector is mainly used to connect two different devices. Especially in electronic products, the electrical connector is an indispensable component. As electronic products become thinner and lighter, the electrical connectors must evolve as the generation changes.

In the conventional electrical connector, the metal terminals are mostly assembled in the insulating body by inserting a PIN. The main purpose is to provide a wide barb on the metal terminal to interfere with the insulating body by using barbs, thereby The metal terminal can be effectively fixed in the insulative body.

However, these methods must have a large space in the insulative housing to fix the metal terminals, which will cause the overall electrical connector to be too bulky, thereby making the electronic product less light and thin.

Therefore, there is also an electrical connector for fixing a metal terminal by injection molding. The electrical connector is mainly used for fixing metal terminals of different rows by injection molding, and then separately assembled to the insulating body. in.

However, in this way, it is necessary to separately form a plastic seat on the metal terminals of different rows, and then separately assemble the plastic seat on the insulating body, so each plastic seat must be separately provided with the insulating body. Closing device so that the plastic seats can be individually fastened Insulate the body. Therefore, the plastic seat and the insulating body must be designed with a fastening device at the same time. Since the space inside the insulating body is limited, if two fastening devices are reserved in the insulating body, the volume of the electrical connector cannot be reduced, and There is also a limit in height, and the electrical connector can no longer be made thinner.

Therefore, how to provide an electrical connector having a thinning effect is the technical means to be solved by the present invention.

In view of the above problems, the present invention provides a terminal module, and more particularly to an electrical connector having a thinning effect.

To achieve the above objective, the electrical connector of the present invention is applied to a circuit board for electrically connecting a pair of connectors, and the electrical connector comprises an insulating body, a terminal module and two fixing pieces.

The insulative housing has a socket at the front end for inserting the mating object, and a fixing slot is respectively disposed on two sides of the socket.

The at least one terminal module is disposed in the insulating body and includes a plurality of metal terminals and a fixing base. The metal terminal is partially exposed at the socket of the insulating body, and is electrically connected to the docking object, and the fixing seat is used for The metal terminals are fixed, and a card slot is disposed on each side of the fixing seat.

Each of the fixing pieces is respectively fixed in the fixing groove of the insulating body, and each of the fixing pieces extends toward the accommodating space of the insulating body, and the buckle is fastened to the card slot of the terminal module.

Therefore, the terminal module is fastened by using two fixing pieces to prevent the terminal module from falling off from the insulating body, thereby achieving the requirement of thinning the electrical connector.

The socket of the insulative housing further includes an upper terminal slot and a lower terminal slot, and the metal terminals further include a plurality of first metal terminals and a plurality of second metal terminals, wherein the first metal terminal portions extend above In the terminal slot, the second metal terminals extend partially in the lower terminal slot.

The fixing base of the terminal module further includes a first fixing seat and a second fixing seat. The first fixing seat is used for fixing the first metal terminals, and the second fixing seat is used for fixing the second metal parts. a terminal, and the two card slots are disposed on two sides of the second fixing seat. The first fixing base and the second fixing base are respectively fixed to the first metal terminals and the second metal terminals by injection molding.

Wherein, the first fixing seat is further provided with a positioning hole, and the positioning position of the second fixing seat relative to the positioning hole of the first fixing seat is further convexly provided with a positioning portion embedded with the positioning hole, and the first position can be prevented The seat is detached.

The first metal terminal is partially exposed to the positioning hole of the first fixing seat, and the positioning portion of the second fixing seat is further provided with a plurality of recesses, so that the metal terminal portions exposed to the positioning holes are embedded. In the grooves.

An accommodating space is further formed on the rear end of the insulating body, and two guiding grooves are respectively disposed on two sides of the accommodating space, and each of the guiding grooves is respectively communicated with each of the fixing grooves.

A guiding block is disposed on the two sides of the fixing block of the terminal module, and the guiding block is corresponding to the guiding groove of the insulating body, and the two card slots are respectively disposed on the two guiding blocks.

Wherein, each fixing piece is further provided with a welding portion, and one side of each fixing piece is further provided with at least one barb.

10‧‧‧Insulated body

11‧‧‧ socket

12‧‧‧Upper terminal slot

13‧‧‧Lower terminal slot

14‧‧‧fixed slot

15‧‧‧ accommodating space

16‧‧‧ guiding slot

20‧‧‧Terminal module

21‧‧‧Metal terminals

211‧‧‧First metal terminal

2111‧‧‧First Welding Department

212‧‧‧Second metal terminal

2121‧‧‧Second welding department

22‧‧‧ Fixed seat

221‧‧‧First mount

2211‧‧‧Positioning holes

222‧‧‧Second mount

2221‧‧‧ Positioning Department

2222‧‧‧ Groove

23‧‧‧ card slot

24‧‧‧Guiding block

30‧‧‧Fixed tablets

31‧‧‧ buckle

32‧‧‧Weld Department

33‧‧‧ barbed

40‧‧‧Electrical connector

The first figure is a schematic perspective view of the present invention.

The second figure is a perspective exploded view of the present invention.

The third figure is a perspective exploded view of another perspective of the present invention.

The fourth figure is a schematic cross-sectional view of the present invention.

The fifth figure is an exploded view of the second embodiment of the terminal module of the present invention.

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

1 and 2 are schematic perspective views and perspective exploded views of the present invention. As shown in the figure, the electrical connector of the present invention is mainly applied to a circuit board (not shown) and electrically connected to a pair of connectors (such as DDR, PCI, PCI Express, Mini PCI, NGFF, etc.) for the circuit board. Expanded expansion module). The electrical connector 40 of the present invention comprises an insulative housing 10, a terminal module 20 and two fixing tabs 30. among them:

The front end of the insulative housing 10 is provided with a socket 11 for inserting abutment. The upper and lower sides of the socket 11 are respectively formed with a plurality of upper terminal slots 12 and a plurality of lower terminal slots 13, and the left and right sides of the socket 11 are respectively A fixing groove 14 is provided on each side.

The terminal module 20 is disposed in the insulative housing 10 and includes a plurality of metal terminals 21 and a fixing base 22 . The metal terminals 21 are partially exposed to the sockets 11 of the insulative housing 10 for electrically connecting to the interfaces. The fixing base 22 is for fixing the metal terminals 21, and a card slot 23 is respectively disposed on the left and right sides of the fixing base 22.

In the present embodiment, the metal terminal 21 includes a plurality of first metal terminals 211 and a plurality of second metal terminals 212. The first metal terminal 211 is fixed above the fixing base 22 and partially extends from the insulating body 10. The upper terminal slot 12 is partially exposed above the socket 11 of the insulative housing 10; and the second metal terminal 212 is fixed below the fixing base 22 and partially extends from the lower terminal slot 13 of the insulative housing 10. And partially exposed to the underside of the socket 11 of the insulative housing 10.

Each of the fixing pieces 30 is disposed in the fixing slot 14 of the insulative housing 10 . Each of the fixing pieces 30 extends in the direction of the terminal module 20 with a latch 31 . The latching 31 is fastened in the insulative housing 10 and the terminal module 20 . The card slots 23 are fastened to each other. Each of the fixing pieces 30 further includes a soldering portion 32 and at least one barb 33, wherein the soldering portion 32 is soldered to the circuit board, and the barb 33 is disposed on one side of the fixing sheet 30 for The fixing piece 30 is fixed in the fixing groove 14 of the insulative housing 10.

Please refer to FIG. 3 again, which is a perspective exploded view of another perspective of the present invention. As shown in the figure, the insulative housing 10 of the present invention has a receiving space 15 formed in the rear end thereof, and the receiving space 15 is in communication with the socket 11 , and the terminal module 20 is disposed in the receiving space 15 . The first metal terminal 211 and the second metal terminals 212 are partially protruded into the socket 11 through the upper terminal slots 12 and the lower terminal slots 13 .

In addition, a guiding groove 16 is respectively disposed on the left and right sides of the accommodating space 15 of the insulative housing 10, and the guiding groove 16 communicates with the fixing groove 14 respectively. A guiding block 24 is further disposed on the left and right sides of the fixing base 22 relative to the guiding slot 16 , and the slot 23 is fastened on the guiding block 24 .

Furthermore, the first metal terminals 211 further extend a row of first soldering portions 2111 behind the fixing base 22, and the second metal terminals 212 extend two rows of second solderings below the fixing base 22. In the connecting portion 2121, the first soldering portions 2111 and the second soldering portions 2121. are electrically connected to the circuit board to form an electrical connection between the interface and the circuit board.

Please also refer to FIG. 4 for a schematic cross-sectional view of the present invention. As shown in the figure, when the electrical connector of the present invention is assembled, the terminal module 20 is corresponding to the guiding groove 16 of the insulative housing 10 by the guiding block 24, and then the terminal module 20 is installed in the insulative housing 10. The terminal module 20 is housed in the accommodating space 15 of the insulative housing 10 .

Then, after each fixing piece 30 corresponds to the fixing groove 14, each fixing piece 30 is mounted one by one in the fixing groove 14, and each fixing piece 30 utilizes the barb 33 and the groove wall in the fixing groove 14. The fitting effect is produced, and the peeling of the fixing piece 30 is prevented.

In addition, when the fixing piece 30 is mounted in the fixing groove 14, since the front end of the fixing piece 30 has a buckle 31 extending therefrom, the buckle 31 extends into the guiding groove 16 to form a buckle with the card slot 23 on the guiding block 24. In the combined state, the fixing piece 30 and the terminal module 20 are pulled apart from each other in the insertion direction, and the phenomenon that the terminal module 20 and the fixing piece 30 are detached from the insertion direction of the insulating body 10 can be prevented.

It is to be noted that, in the present invention, the terminal module 20 is mainly engaged with each other through the latch 31 of the front end of each fixing piece 30 and the card slot 23 of the fixing seat 22, so that the insulating body 10 does not need to be In addition, a latching mechanism is added to enable an effective fastening effect in a limited space, thereby effectively reducing the height of the insulative housing 10 and making the electrical connector meet the requirements for thinning.

In addition, it can be more in line with the thinning requirements of the electrical connector, please refer to the fifth figure, which is an exploded view of the second embodiment of the terminal module of the present invention. As shown in the figure, the terminal module 20 of the present invention is fixed except for the first metal terminal 211 and the second metal terminal 212. The seat 22 further includes a first fixing base 221 and a second fixing base 222. The first fixing base 221 fixes the first metal terminals 211 in an injection molding manner, and the second fixing base 222 fixes the second metal terminals 212 by injection molding, and the guiding block 24 The system is disposed on the left and right sides of the second fixing base 222.

A positioning hole 2211 is further disposed on the first fixing base 221 along the direction of the first metal terminal 211. The positioning hole 2211 extends through the first fixing base 221 to expose a portion of the first metal terminal 211 to the positioning hole 2211.

The positioning portion 2221 is further disposed in the direction of the second metal terminal 212 and corresponds to the positioning hole 2211 of the first fixing base 221 . And a plurality of grooves 2222 are further disposed above the positioning portion 2221, and each groove 2222 corresponds to each of the first metal terminals 211 exposed to the positioning holes 2211.

Therefore, when the first fixing base 221 is combined with the second fixing base 222, the positioning portion 2221 of the second fixing base 222 is embedded in the positioning hole 2211 of the first fixing base 221, and each is exposed to the positioning. The first metal terminal 211 of the hole 2211 is embedded in each corresponding groove 2222, so that the first fixing seat 221 and the second fixing seat 222 are embedded with each other.

It should be noted that since the first fixing base 221 and the second fixing base 222 are respectively formed on the first metal terminal 211 and the second metal terminal 212 by injection molding, the first fixing seat 221 and the second fixing body can be made. The mount 222 meets the requirements for better thinning. The first fixing base 221 and the second fixing base 222 are overlapped in thickness, that is, the thickness of the positioning portion 2221 and the positioning hole 2211 are overlapped, so that the first fixing seat 221 and the second fixing seat can be effectively reduced. The thickness of 222 can reduce the thickness of the whole terminal module 20, and the volume of the insulating body 10 can be reduced, thereby making the overall electrical connector more suitable for thinning.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any modifications and refinements made by those skilled in the art without departing from the spirit of the present invention should be Within the scope of the invention, therefore, the scope of the invention is defined by the scope of the appended claims.

10‧‧‧Insulated body

11‧‧‧ socket

12‧‧‧Upper terminal slot

13‧‧‧Lower terminal slot

14‧‧‧fixed slot

20‧‧‧Terminal module

21‧‧‧Metal terminals

211‧‧‧First metal terminal

212‧‧‧Second metal terminal

22‧‧‧ Fixed seat

23‧‧‧ card slot

30‧‧‧Fixed tablets

31‧‧‧ buckle

32‧‧‧Weld Department

33‧‧‧ barbed

40‧‧‧Electrical connector

Claims (10)

An electrical connector is applied to a circuit board for electrically connecting a pair of connectors, the electrical connector comprising: an insulative body having a socket at the front end for the mating object to be inserted, and A fixing slot is disposed on each of the two sides of the socket; at least one terminal module is disposed in the insulative housing, and includes a plurality of metal terminals and a fixing base, wherein the metal terminal portion is exposed at the socket of the insulating body, and the docking The fixing base is used for fixing the metal terminals, and each of the fixing seats is provided with a card slot; and two fixing pieces are respectively fixed in the fixing grooves of the insulating body, and each fixing is fixed. A clip extends toward the accommodating space of the insulative housing, and the clip is fastened to the slot of the terminal module. The electrical connector of the first aspect of the invention, wherein the socket of the insulative housing further includes an upper terminal slot and a lower terminal slot, and the metal terminal further includes a first metal terminal and a second metal terminal. The first metal terminal portion extends in the upper terminal slot, and the second metal terminal extends partially in the lower terminal slot. The electrical connector of the second aspect of the invention, wherein the fixing base of the terminal module comprises a first fixing base and a second fixing base, wherein the first fixing seat is used for fixing the first metal terminal, The second fixing seat is configured to fix the second metal terminal, and the two card slots are disposed on two sides of the second fixing seat. The electrical connector of claim 3, wherein the first fixing seat and the second fixing seat are respectively fixed to the first metal terminals and the second metal terminals by injection molding. on. The electrical connector of claim 3, wherein the first fixing seat further has a positioning hole, and the positioning position of the second fixing seat relative to the positioning hole of the first fixing seat is more convex. The positioning portion is embedded with the positioning hole. The electrical connector of claim 5, wherein the first metal terminal is partially exposed to the positioning hole, and the positioning portion of the second fixing seat is further provided with a plurality of grooves, the exposure being The metal terminal portions of the positioning holes are embedded in the grooves. The electrical connector of claim 1, wherein the rear end of the insulating body is further provided with an accommodating space, and two sides of the accommodating space are respectively provided with a guiding slot, and each guiding slot Each of the fixing slots is in communication with each other. The electrical connector of the seventh aspect of the invention, wherein the two sides of the fixing block of the terminal module are respectively provided with a guiding block, the guiding block corresponding to the guiding groove of the insulating body, and the two The card slots are respectively disposed on the two guiding blocks. The electrical connector of claim 1, wherein each of the fixing pieces further comprises a soldering portion. The electrical connector of claim 9, wherein one side of each of the fixing pieces is further provided with a barb.