TWI478446B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector that is soldered and stabilized to a circuit board.

A conventional electrical connector generally includes an insulative housing and a plurality of conductive terminals received in the insulative housing. In order to match the soldering legs of a plurality of conductive terminals of similar size, the diameter of the soldering holes on the circuit board is usually set large. Therefore, when the electrical connector with a small soldering leg has a small size, when it is soldered to the circuit board, the electrical connector is usually swayed due to the excessive gap between the soldering leg and the soldering hole, thereby causing the electrical connector and the electrical connector. The soldering between the boards is less stable.

In view of this, it is necessary to further improve the existing electrical connector to solve the above problems.

It is an object of the present invention to provide an electrical connector that is more robust to soldering between the electrical connector and the circuit board.

To achieve the above object, the present invention relates to an electrical connector including an insulative housing and a plurality of power supply terminal pairs housed in the insulative housing. The power supply terminal pair includes a plurality of soldering legs for soldering to the circuit board, and the plurality of soldering legs Arranging into at least two rows, the upper ends of the at least two soldering legs of the at least two rows of soldering legs protrude outwardly with ribs so that the width of the upper side of the soldering leg is greater than the width of the bottom end of the soldering leg, The power terminal pair includes two power supply terminals disposed opposite to each other, each of the power supply terminals is provided with a contact portion, a tail portion, and a connecting portion connecting the contact portion and the tail portion, and the solder fillet is disposed on the tail portion, the two pieces The power terminals are symmetrically arranged, and each of the tail portions is provided with three soldering legs, and the three soldering legs are arranged in a straight line along the plugging direction of the power terminals, so that the soldering legs of the two power terminals are squared. The aforementioned ribs protrude outward from the upper side of the solder fillet arranged along the diagonal of the square.

According to a further improvement of the present invention, the insulating body has a plurality of receiving slots for receiving the pair of the plurality of power terminals, and the receiving groove extends through the insulating body.

As a further improvement of the present invention, the inner wall of the receiving groove is provided with a guiding block, and the power terminal is closely attached to the guiding block, so that a gap is formed between the power terminal and the inner wall for heat dissipation.

As a further improvement of the present invention, the front end of the receiving groove is provided with a stopper for abutting the contact portion.

As a further improvement of the present invention, the aforementioned electrical connector further includes a plurality of signal terminals.

According to a further improvement of the present invention, the signal terminal includes a base portion, an abutting portion extending outward from one end of the base portion, and a welded portion extending outward from the other end of the base portion.

As a further improvement of the present invention, the electrical connector further includes a fixing block, and the fixing block is provided with a hole through which the soldering portion of the signal terminal passes.

The electrical connector of the present invention is arranged in at least two rows by a plurality of soldering legs of the pair of power terminals, and an outwardly projecting rib is disposed at an upper side of the two soldering legs of the at least two rows of soldering legs. The width of the upper side of the solder fillet is greater than the width of the bottom end of the solder fillet, so that when the electrical connector is soldered to the circuit board, the two solder fillets are first soldered to the circuit board, thereby reducing the solder fillet and the solder fillet. Limiting the aforementioned electrical connector while the gap is between Rotating and shaking on the board improves the soldering stability between the electrical connector and the board.

Referring to the first and second figures, the electrical connector 100 of the present invention includes an insulative housing 10 and a plurality of power supply terminal pairs and a plurality of signal terminals 30 received in the insulative housing 10.

Referring to the third and fourth figures, and in conjunction with the second figure, a plurality of receiving slots are defined in the insulative housing 10 for respectively receiving the plurality of power terminal pairs and the plurality of signal terminals 30. In this embodiment, since the plurality of power supply terminal pairs and the plurality of signal terminals 30 are different in shape, the first receiving slot 11 for receiving the plurality of power supply terminal pairs and the second receiving terminal 30 for receiving the plurality of signal terminals 30 The shape of the receiving groove 12 is also different.

The first receiving groove 11 penetrates the insulative housing 10 forward and backward, and the first receiving groove 11 includes an upper inner wall 111, an inner wall 112 corresponding to the upper inner wall 111, and the upper inner wall 111 and the lower inner wall. The inner walls 113 on both sides of the wall 112.

The foregoing upper inner wall 111 is recessed upward in the vertical direction to form two first card slots 13. The lower inner wall 112 is recessed downward in the vertical direction to form two second card slots 14. The lower inner wall 112 is further provided with a resisting block 15 extending in the opposite direction of the plugging of the pair of power terminals between the two second card slots 14 to restrict the pair of power terminals from moving in the left-right direction.

A stopper 17 is disposed at a front end of the first receiving groove 11 , and an abutting portion is disposed at a rear end of the first receiving groove 11 . In the embodiment, the abutting portion is a guiding block 16 that protrudes outward from a middle position of the side inner wall 113, and the guiding block 16 is from the first receiving slot 11 The front end extends to the rear end of the first receiving groove 11. The front side inner wall 113 is respectively provided with a guiding block 16 so that the pair of power terminals are closely attached to the guiding block 16, so that the pair of the power terminals and the side inner wall 113 are formed to be larger. Clearance for heat dissipation. A protruding block 18 is further disposed at the rear end of the first receiving groove 11, and the protruding block 18 is provided with an inclined guiding surface 181 for guiding the insertion of the pair of power terminals. The front end of the guiding block 16 is connected to the aforementioned stopper 17, and the rear end of the guiding block 16 is connected to the protruding block 18.

Referring to the fifth and sixth figures, and in combination with the second and third figures, each of the foregoing power terminal pairs includes two power supply terminals 20 that are oppositely and symmetrically disposed. Each of the power supply terminals 20 is provided with a contact portion 21, a tail portion 23, and a connecting portion 22 connecting the contact portion 21 and the tail portion 23. The contact portion 21 and the connecting portion 22 are each formed in a flat shape, and the tail portion 23 is perpendicular to the contact portion 21 and the connecting portion 22 such that the power supply terminal 20 has a substantially L-shaped cross section.

The two first slots 13 are respectively configured to receive the top ends of the connecting portions 22 of the two power terminals 20, and the two second slots 14 are respectively configured to receive the bottom ends of the connecting portions 22 of the two power terminals 20 The stopper 17 is configured to abut the contact portion 21 of the two power supply terminals 20 . Therefore, the power supply of the first card slot 13 and the top end of the connecting portion 22, the second card slot 14 and the bottom end of the connecting portion 22, and the engagement of the stopper 17 with the contact portion 21 can limit the power supply. The terminal 20 moves forward and backward, left and right, and up and down in the first receiving groove 11.

The rear end of the connecting portion 22 is provided with a fastening portion 24 that abuts against the abutting portion. The abutting portion 24 abuts against the abutting portion to restrict the pair of power terminals from being opposite to the front The insulating body 10 is displaced downward. In the present embodiment, the engaging portion 24 is a cantilever formed by tearing away from the rear end of the connecting portion 22, and the cantilever extends in a direction away from the contact portion 21; the abutting portion is from the first receiving slot The side inner wall 113 of the 11 protrudes outwardly and abuts against the guiding block 16 below the cantilever. In other embodiments, the engaging portion 24 may be an open slot, and the abutting portion is a latch that is retained in the open slot; or the abutting portion is an open slot, and the engaging portion is 24 is a block that is held in the open slot; or the abutting portion and the engaging portion 24 are configured to cooperate with each other to restrict displacement of the pair of power terminals relative to the insulative housing 10.

The tail portion 23 includes a plurality of solder fillets 231 for soldering to a circuit board (not shown) such that each pair of power supply terminal pairs includes a plurality of solder fillets 231 arranged in at least two rows. The ribs 232 protrude outward from the upper side of the two soldering legs 231 of the at least two rows of the solder fillets 231 so that the width of the upper side of the solder fillet 231 is greater than the width of the bottom end of the solder fillet 231. In the embodiment, the tail portion 23 is provided with three solder fillets 231, and the three solder fillets 231 are arranged in a straight line along the plugging direction of the power source terminal 20, so that the solder pads 231 of the two power supply terminals 20 are enclosed. Form a square. The rib 232 protrudes outward from the upper side of the two aforementioned solder fillets 231 arranged along the diagonal of the square. Therefore, when the plurality of soldering legs 231 are soldered to the circuit board, the two soldering legs 231 provided with the ribs 232 are first soldered, so that the gap between the soldering legs 231 and the soldering holes on the circuit board can be reduced. At the same time, it is also possible to limit the above-mentioned electrical connector 100 from rotating and shaking on the circuit board.

Referring to FIG. 7 and in conjunction with the second figure, the plurality of signal terminals 30 include six sets of signal terminals 30, and each set of signal terminals 30 includes four identical shapes but inconsistent size ratios. Signal terminal 30. Each of the signal terminals 30 includes a base portion 32 that is received in the second receiving groove 12 and has a flat shape, an abutting portion 31 extending outward from one end of the base portion 32, and a welding extending outward from the other end of the base portion 32. Part 33. The electrical connector 100 of the present invention further includes a fixed block 40 that is assembled with the aforementioned signal terminal 30. The fixing block 40 is provided with a plurality of holes 41 through which the soldering portions 33 of the signal terminals 30 pass. By the cooperation of the hole 41 and the soldering portion 33 of the signal terminal 30, the soldering between the signal terminal 30 and the circuit board can be ensured, so that the signal transmission effect of the electrical connector 100 of the present invention is better.

In the above, the electrical connector 100 of the present invention is provided with an abutting portion at the rear end of the first receiving slot 11, and is disposed at the rear end of the connecting portion 22 of the power terminal 20 to cooperate with the abutting portion. The engaging portion 24 can restrain the power terminal pair from being displaced in the vertical direction with respect to the insulating body 10 by the engagement of the abutting portion and the engaging portion 24, thereby improving the structural stability of the electrical connector 100. On the other hand, the electrical connector 100 of the present invention is provided with outwardly projecting ribs 232 at the upper side of the two solder legs 231 which are furthest away, so that the width of the upper side of the solder fillet 231 is larger than the bottom of the solder fillet 231. The width of the end, so that when the electrical connector 100 is soldered to the circuit board, the two soldering legs 231 are first soldered, so that the gap between the solder fillet 231 and the soldering holes on the circuit board can be reduced, and the gap can be limited. The electrical connector 100 is swayed on the circuit board, thereby improving the soldering stability between the electrical connector 100 and the circuit board.

It is to be noted that the equivalent changes to the invention made by the teachings of the present invention should still be included in the scope of the present invention. In the scope of the claim.

100‧‧‧Electrical connector

10‧‧‧Insulated body

11‧‧‧First storage trough

111‧‧‧Upper inner wall

112‧‧‧ Lower inner wall

113‧‧‧ side inner wall

12‧‧‧Second holding trough

13‧‧‧First card slot

14‧‧‧Second card slot

15‧‧‧Resistance block

16‧‧‧Guiding block

17‧‧ ‧block

18‧‧‧Bumps

181‧‧‧ Guide surface

20‧‧‧Power terminal

21‧‧‧Contacts

22‧‧‧Connecting Department

23‧‧‧ tail

231‧‧‧ solder feet

232‧‧‧ ribs

24‧‧‧Deduction Department

30‧‧‧ Signal Terminal

31‧‧‧Docking Department

32‧‧‧ base

33‧‧‧Weld Department

40‧‧‧Fixed block

41‧‧‧ hole

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

The second figure is an exploded view of the electrical connector shown in the first figure.

The third figure is a perspective view of the insulative body shown in the second figure.

The fourth figure is another perspective view of the insulating body shown in the third figure.

The fifth figure is a perspective view of one of the power supply terminal pairs shown in the second figure.

The sixth figure is a perspective view of one of the power supply terminals shown in the fifth figure.

The seventh figure is a perspective view of the combination of one of the signal terminals and the fixed block shown in the second figure.

20‧‧‧Power terminal

21‧‧‧Contacts

22‧‧‧Connecting Department

23‧‧‧ tail

231‧‧‧ solder feet

232‧‧‧ ribs

24‧‧‧Deduction Department

Claims (7)

An electrical connector includes an insulative housing and a plurality of power supply terminal pairs received in the insulating body, wherein the power supply terminal pair includes a plurality of soldering legs for soldering to the circuit board, and the plurality of soldering legs are arranged in at least two rows. a rib is protruded outwardly from the upper side of the at least two soldering legs of the at least two rows of soldering legs, such that the width of the upper side of the soldering leg is greater than the width of the bottom end of the soldering leg, and the pair of power terminals includes opposite positions. Two power supply terminals, each of which has a contact portion, a tail portion, and a connecting portion connecting the contact portion and the tail portion, wherein the solder fillet is disposed on the tail portion, and the two power supply terminals are symmetrically disposed, each of the tail portions There are three such soldering legs, and the three soldering legs are arranged in a straight line along the plugging direction of the power terminals, so that the soldering legs of the two power terminals are squared and arranged along the diagonal of the square. The aforementioned rib protrudes outward from the upper side of the foot. The electrical connector of claim 1, wherein the insulating body has a plurality of receiving slots for receiving the pair of the plurality of power terminals, and the receiving groove extends through the insulating body. The electrical connector of claim 2, wherein the inner wall of the receiving groove is provided with a guiding block, and the power terminal is closely attached to the guiding block, so that the power terminal and the inner wall are A gap is formed between them for heat dissipation. The electrical connector of claim 2, wherein the front end of the receiving groove is provided with a stopper for abutting the contact portion. The electrical connector of claim 1, wherein the electrical connector further comprises a plurality of signal terminals. The electrical connector of claim 5, wherein the signal terminal comprises a base portion, an abutting portion extending outward from one end of the base portion, and a welded portion extending outward from the other end of the base portion. The electrical connector of claim 6, wherein the electrical connector further comprises a fixing block, and the fixing block is provided with a hole through which the soldering portion of the signal terminal passes.