TWM506398U - Plug connector and electrical connector assembly - Google Patents

Description

Plug connector and electrical connector combination 【0001】

The present invention relates to an electrical connector, and more particularly to a plug connector mounted on a circuit board and an electrical connector combination having the plug connector.

【0002】

With the rapid development of electronic technology, electronic products are becoming more and more high-end intelligent, and the requirements for power connectors are getting higher and higher. Existing power connectors typically include an insulative housing and a plurality of power terminals assembled in the insulative housing. The insulating body has a through hole, and the power terminal is assembled in the jack to facilitate the power connection between the power connector and the docking connector. Existing power connectors usually have a foolproof structure on the docking end to avoid mis-insertion with the docking connector.

[0003]

However, the existing power connector is not provided with a foolproof structure at the terminal assembly end, so that it is easier to accidentally insert the power terminal into the insulating body when assembling the power connector.

[0004]

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

[0005]

The purpose of the present invention is to provide a plug connector which can prevent the male terminal power terminal from being mistakenly inserted into the insulating body, and has a good anti-staying effect.

[0006]

In order to achieve the above object, the present invention relates to a plug connector that is mounted on a circuit board for docking with a socket connector, and includes:

【0007】

The insulative housing has a mating surface that abuts the socket connector, a mounting surface opposite to the mating surface, a top surface and a bottom surface of the connecting mating surface and the mounting surface, and a plurality of first terminal receiving passages and a second terminal receiving passage Passing through the aforementioned abutting surface to the aforementioned mounting surface;

[0008]

The first terminal is received in the first terminal receiving passage, and the second terminal is received in the second terminal receiving passage, and each male terminal has a connection with the first terminal and the second terminal. a contact portion electrically connected to the socket connector, a terminal tail portion electrically connected to the circuit board, and a fixing portion connecting the contact portion and the tail portion of the terminal;

【0009】

a terminal holding portion is disposed in the first terminal receiving passage and the second terminal receiving passage, and the fixing portion of the male terminal power terminal and the terminal holding portion cooperate to fix the male terminal power terminal to the corresponding terminal. The terminal holding portion of the first terminal receiving passage and the terminal holding portion of the second terminal receiving passage are arranged in a height misalignment in the height direction of the plug connector.

[0010]

As a further improvement of the present invention, the outer wall surface of the fixing portion is provided with two cantilevered arms, and the two cantilever arms are vertically arranged to be used when the male power terminal is received in the corresponding terminal receiving passage. The holding portion is clamped between the two cantilevers.

[0011]

As a further improvement of the present invention, the cantilever of the first terminal and the cantilever of the second terminal form a high and low misalignment arrangement in the height direction of the plug connector to prevent the first terminal from being erroneously inserted into the second terminal receiving passage, the foregoing The two terminals are erroneously inserted into the first terminal receiving passage.

[0012]

As a further improvement of the present invention, the plug connector further has a heat dissipation passage extending from the top surface to the bottom surface and from the mating surface to the mounting surface.

[0013]

As a further improvement of the present invention, the insulating body is respectively provided with a dustproof cover on the upper and lower sides of the contact portion of the male terminal power terminal, and the heat dissipation channel includes a convection hole disposed between the adjacent two dustproof covers, and the convection hole From the top surface to the bottom surface.

[0014]

As a further improvement of the present invention, the contact portion is formed with at least two contact fingers that are butted against the socket connector, and the heat dissipation passage includes a heat dissipation groove formed between the adjacent two contact fingers.

[0015]

As a further improvement of the present invention, in the first terminal receiving passage and the second terminal receiving passage, a partition wall is formed between the adjacent two terminal receiving passages, and the heat dissipation passage is formed on the partition wall and faces from the mating surface The first convection groove formed by the recess of the mounting surface and the second convection groove formed by the recess from the mounting surface toward the abutting surface.

[0016]

As a further improvement of the present invention, the terminal holding portion is formed to protrude outward from the side walls of the partition wall, and the second convection groove is disposed on the upper and lower sides of the terminal holding portion.

[0017]

As a further improvement of the present invention, the heat dissipation channel includes an escape slot that is open on the bottom surface of the insulative housing and communicates with the first terminal receiving passage and the second terminal receiving passage, and the escape slot is disposed at the male end. Both sides of the terminal end of the power terminal.

[0018]

As a further improvement of the present invention, the terminal tail portion of the male terminal power terminal includes a soldering leg fixed to the circuit board, and the thickness of the soldering leg is smaller than the thickness of the terminal tail portion, so that a step is formed between the soldering leg and the terminal tail portion. shape.

[0019]

As a further improvement of the present invention, the plug connector further includes a plurality of male terminal terminals received in the insulating body and a limiting block for limiting the plurality of male terminal terminals.

[0020]

The purpose of the present invention is also to provide an electrical connector assembly that not only has a better foolproof effect, but also has a better heat dissipation effect.

[0021]

In order to achieve the above object, the present invention relates to an electrical connector assembly including a plug connector and a socket connector that are mated to each other, wherein the plug connector includes:

[0022]

The insulative housing has a mating surface that abuts the socket connector, a mounting surface opposite to the mating surface, a top surface and a bottom surface of the connecting mating surface and the mounting surface, and a plurality of first terminal receiving passages and a second terminal receiving passage Passing through the aforementioned abutting surface to the aforementioned mounting surface; and

[0023]

The first terminal and the second terminal are respectively received in the first terminal receiving channel and the second terminal receiving channel, and each of the male power terminals has a socket a contact portion electrically connected to the connector, a terminal tail portion electrically connected to the circuit board, and a fixing portion connecting the contact portion and the tail portion of the terminal;

[0024]

A terminal holding portion is disposed in the first terminal receiving passage and the second terminal receiving passage, and the fixing portion of the male end power terminal and the terminal holding portion cooperate to fix the male end power terminal to the corresponding terminal receiving passage And the terminal latching portion of the first terminal receiving passage and the terminal latching portion of the second terminal receiving passage form a high and low misalignment arrangement in a height direction of the plug connector;

[0025]

The socket connector includes: a plastic body having a front end surface opposite to the mating surface of the plug connector and a rear end surface disposed opposite to the front end surface, the plurality of third terminal receiving passages penetrating from the front end surface to the rear end surface ;and

[0026]

The plurality of female end power terminals are correspondingly received in the third terminal receiving passage, and each of the female end power terminals has a mating portion electrically connected to the contact portion of the male end power terminal, and a soldering portion electrically connected to the circuit board and A connecting portion of the butting portion and the welded portion is connected.

[0027]

As a further improvement of the present invention, the outer wall surface of the fixing portion is provided with two cantilevered arms, and the two cantilever arms are vertically arranged to be received in the first terminal receiving passage and the second terminal receiving passage at the male end power terminal. In the inner case, the terminal catching portion is sandwiched between the two cantilevers.

[0028]

As a further improvement of the present invention, the cantilever of the first terminal and the cantilever of the second terminal form a high and low misalignment arrangement in the height direction of the plug connector to prevent the first terminal from being erroneously inserted into the second terminal receiving passage, the foregoing The two terminals are erroneously inserted into the first terminal receiving passage.

[0029]

As a further improvement of the present invention, the plug connector further has a heat dissipation passage extending from the top surface to the bottom surface and from the mating surface to the mounting surface.

[0030]

As a further improvement of the present invention, the insulating body is respectively provided with a dustproof cover on the upper and lower sides of the contact portion of the male terminal power terminal, and the heat dissipation channel includes a convection hole disposed between the adjacent two dustproof covers, and the convection hole From the top surface to the bottom surface.

[0031]

As a further improvement of the present invention, the contact portion of the male terminal power terminal is formed with at least two contact fingers that are butted against the female power terminal, and the heat dissipation channel includes a heat dissipation groove formed between the adjacent two contact fingers.

[0032]

As a further improvement of the present invention, in the first terminal receiving passage and the second terminal receiving passage, a partition wall is formed between the adjacent two terminal receiving passages, and the heat dissipation passage is formed on the partition wall and faces from the mating surface The first convection groove formed by the recess of the mounting surface and the second convection groove formed by the recess from the mounting surface toward the abutting surface.

[0033]

As a further improvement of the present invention, the terminal holding portion is formed to protrude outward from the side walls of the partition wall, and the second convection groove is disposed on the upper and lower sides of the terminal holding portion.

[0034]

As a further improvement of the present invention, the heat dissipation channel includes an escape slot that is open on the bottom surface of the insulative housing and communicates with the first terminal receiving passage and the second terminal receiving passage, and the escape slot is disposed at the male end. Both sides of the terminal end of the power terminal.

[0035]

As a further improvement of the present invention, the terminal tail portion of the male terminal power terminal includes a soldering leg fixed to the circuit board, and the thickness of the soldering leg is smaller than the thickness of the terminal tail portion, so that a step is formed between the soldering leg and the terminal tail portion. shape.

[0036]

As a further improvement of the present invention, at least two contact arms that are in contact with the contact fingers of the male power terminals are formed on the mating portions of the female power terminals, and open slots are formed between the adjacent two contact arms.

[0037]

As a further improvement of the present invention, a spacer is formed between the two adjacent third terminal receiving passages, and the partition portion is provided with a recess formed by recessing from the front end surface toward the rear end surface and recessed from the rear end surface toward the front end surface. The third convection trough is formed so that the heat generated by the female power terminal is dissipated by the aforementioned groove and the third convection groove.

[0038]

As a further improvement of the present invention, the bottom of the plastic body is provided with an air outlet groove communicating with the third terminal receiving passage, and the air outlet groove is disposed at two sides of the welding portion of the female terminal power terminal.

[0039]

As a further improvement of the present invention, the thickness of the welded portion of the female terminal power terminal is smaller than the thickness of the connecting portion such that a stepped shape is formed between the welded portion and the connecting portion.

[0040]

As a further improvement of the present invention, the plastic body is provided with a heat dissipation hole above the mating portion of the female terminal power terminal, and the heat dissipation hole is recessed from the front end surface toward the rear end surface and communicates with the third terminal receiving passage to The heat generated by the terminal power terminals is dissipated.

[0041]

Compared with the prior art, the plug connector of the present invention provides a terminal holding portion in the first terminal receiving passage and the second terminal receiving passage, so that the male terminal power terminal can cooperate with the terminal holding portion by the fixing portion. The terminal holding portion of the first terminal receiving passage and the terminal holding portion of the second terminal receiving passage are arranged to be aligned in the height direction of the plug connector, thereby being fixed in the corresponding terminal receiving passage. The first terminal can be prevented from being erroneously inserted into the second terminal receiving passage, and the second terminal is erroneously inserted into the first terminal receiving passage, and the foolproof effect is better.

[0064]

1‧‧‧Electrical connector assembly
100‧‧‧ plug connector
10‧‧‧Insulated body
101‧‧‧ docking
102‧‧‧Installation surface
103‧‧‧ top surface
104‧‧‧ bottom
105‧‧‧through slot
11‧‧‧First terminal receiving channel
12‧‧‧Second terminal receiving channel
13‧‧‧ partition wall
131‧‧‧First convection trough
132‧‧‧Second convection trough
14‧‧‧Terminal card holder
15‧‧‧Dust cover
151‧‧‧ convection hole
16‧‧‧ escape trough
17‧‧‧storage trough
18‧‧‧Limited slot
19‧‧‧ card hook
20‧‧‧Male terminal power terminal
201‧‧‧First terminal
202‧‧‧second terminal
203‧‧‧Power terminal block
21, 31‧‧ ‧Contacts
211‧‧‧Contact finger
212‧‧‧heat sink
22, 32‧‧‧ Fixed Department
221‧‧‧ cantilever
222‧‧‧ thorn
23, 33‧‧‧ terminal tail
231‧‧‧Bend
232‧‧‧ solder feet
233‧‧‧through hole
30‧‧‧Common signal terminal
40‧‧‧First limit block
41‧‧‧First perforation
42‧‧‧Bumps
200, 200'‧‧‧ socket connector
50, 50'‧‧‧ plastic body
501, 501'‧‧‧ front end
502‧‧‧ rear end face
51‧‧‧ Third terminal receiving passage
52‧‧‧fourth terminal receiving passage
53‧‧‧ Guide column
54‧‧‧Interval
541‧‧‧ Groove
542‧‧‧ third convection trough
543‧‧‧Resist
544‧‧‧Terminal card holder
55‧‧‧Air outlet
56‧‧‧ accommodating slot
57‧‧‧ hook
58‧‧‧ vents
60‧‧‧Female terminal power terminal
61, 71‧‧‧ docking department
611‧‧‧Contact arm
612‧‧‧Open slot
62, 72‧‧‧ Connections
621‧‧‧ barbed
622‧‧‧ rib
63, 73‧‧‧ Weld Department
70‧‧‧Female signal terminal
80‧‧‧second limit block
81‧‧‧Second perforation
82‧‧‧Bumps

[0042]

The first figure is a perspective view of the combination of the present electrical connector.
The second figure is a perspective view of the plug connector shown in the first figure.
The third figure is an exploded view of the plug connector shown in the second figure.
The fourth figure is a perspective view of the insulative body shown in the third figure.
The fifth figure is another perspective view of the insulating body shown in the fourth figure.
The sixth figure is a perspective view of the first terminal and the second terminal shown in the third figure.
The seventh figure is another perspective view of the first terminal and the second terminal shown in the sixth figure.
The eighth figure is an exploded view of the male signal terminal and the first limiting block shown in the third figure.
The ninth drawing is a perspective view of the socket connector shown in the first figure.
The tenth figure is an exploded view of the socket connector shown in the ninth diagram.
The eleventh figure is a perspective view of the plastic body shown in the tenth figure.
Figure 12 is a perspective view of another perspective view of the plastic body shown in Figure 11.
Figure 13 is a perspective view of the female terminal power terminal shown in the tenth figure.
Figure 14 is an exploded view of the female signal terminal and the second limiting block shown in the tenth figure.
The fifteenth diagram is a perspective view of another embodiment of the receptacle connector shown in the ninth diagram.

[0043]

Referring to the first figure, the present application discloses an electrical connector assembly 1, including a plug connector 100 and a receptacle connector 200 that are mounted on a circuit board (not shown) and mated to each other.

[0044]

Referring to the second and third figures, the plug connector 100 includes an insulative housing 10, a plurality of male end power terminals 20 and a plurality of male terminal terminals 30 received in the insulative housing 10, and is configured to limit the foregoing plurality The first limiting block 40 of the male signal terminal 30. The plurality of male terminal power terminals 20 include a first terminal 201 and a second terminal 202.

[0045]

Referring to the fourth to seventh embodiments, the insulative housing 10 is formed with a mating surface 101 that interfaces with the receptacle connector 200, a mounting surface 102 that is disposed opposite the mating surface 101, and a connecting mating surface 101 and mounting surface 102. Top surface 103 and bottom surface 104. The first terminal receiving passage 11 and the second terminal receiving passage 12 are respectively inserted from the abutting surface 101 to the mounting surface 102 to receive the first terminal 201 and the second terminal 202 correspondingly. Both ends of the insulative housing 10 are provided with through slots 105 extending through the insulative housing 10 .

[0046]

In the first terminal receiving passage 11 and the second terminal receiving passage 12, a partition wall 13 is formed between two adjacent terminal receiving passages. A terminal holding portion 14 is formed in each of the first terminal receiving passage 11 and the second terminal receiving passage 12, and the terminal holding portion 14 is formed to protrude outward from the two side walls of the partition wall 13, and the first terminal is received. The terminal holding portion 14 in the passage 11 and the terminal holding portion 14 in the second terminal accommodating passage 12 are arranged in a height misalignment in the height direction of the plug connector 100.

[0047]

The first terminal 201 is received in the first terminal receiving passage 11 , and the second terminal 202 is received in the second terminal receiving passage 12 . The first terminal 201 and the second terminal 202 each include two power supplies disposed on each other. Each of the terminal strips 203 has a contact portion 21 electrically connected to the receptacle connector 200, a terminal tail portion 23 electrically connected to the circuit board, and a fixing portion 22 connecting the contact portion 21 and the terminal tail portion 23. The contact portion 21 and the fixing portion 22 of the two power supply terminal strips 203 are attached to each other, and the terminal tail portions 23 are separated from each other such that the first terminal 201 and the second terminal 202 are substantially Y-shaped.

[0048]

The fixing portion 22 and the terminal holding portion 14 cooperate to fix the male end power terminal 20 in the corresponding terminal receiving passage. For the first terminal 201 and the second terminal 202 as a whole, the two outer wall surfaces of the fixing portion 22 are provided with two cantilevered arms 221, and the two cantilever arms 221 on each outer wall surface are distributed up and down to When the male power terminal 20 is received in the corresponding first terminal receiving passage 11 and the second terminal receiving passage 12, the terminal holding portion 14 is sandwiched between the two cantilevers 221 to further restrict the male terminal power terminal 20 Displacement occurs in the corresponding terminal receiving passage. The cantilever 221 is located at an end of the fixing portion 22 away from the contact portion 21 and extends obliquely away from the contact portion 21 .

[0049]

The first terminal 201 and the second terminal 202 have the same structure, and the difference is mainly as follows: 1. The contact portion 21 of the first terminal 201 is longer than the contact portion 21 of the second terminal 202; 2. The cantilever of the first terminal 201 The 221 and the cantilever 221 of the second terminal 202 are arranged in a height and a low position in the height direction of the plug connector 100. The design is such that the first terminal 201 is prevented from being erroneously inserted into the second terminal receiving passage 12, and the second terminal 202 is incorrect. Inserting the aforementioned first terminal receiving passage 11 has a good anti-staying effect.

[0050]

For the first terminal 201 and the second terminal 202, at least two contact fingers 211 that are butted against the receptacle connector 200 are formed on the contact portion 21, and a heat dissipation groove 212 is formed between the adjacent two contact fingers 211. The upper and lower ends of the fixing portion 22 further protrude with a spur 222 to hardly interfere with the inner wall surfaces of the first terminal receiving passage 11 and the second terminal receiving passage 12, thereby restricting the connection of the male terminal power terminal 20 at the plug. The device 100 moves in the height direction. The terminal tail portion 23 includes a bent portion 231 formed by bending outwardly from the fixing portion 22, and a soldering leg 232 at the end of the terminal tail portion 23 for soldering and fixing to the circuit board. The bent portion 231 is provided with a plurality of through holes 233. In order to dissipate the heat generated by the male power terminal 20. The thickness of the solder fillet 232 is smaller than the thickness of the terminal tail portion 23, so that the solder fillet 232 and the terminal tail portion 23 are stepped to facilitate soldering and fixing to the circuit board.

[0051]

The plug connector 100 further has a heat dissipation passage penetrating from the top surface 103 to the bottom surface 104 and from the mating surface 101 to the mounting surface 102. The insulating body 10 is respectively provided with a dustproof cover 15 on the upper and lower sides of the contact portion 21 of the male end power supply terminal 20 for preventing dust from falling onto the contact portion 21, causing an open circuit or a temperature rise, and adjacent two dustproof covers 15 A convection hole 151 is provided between the convection holes 151 and the convection hole 151 penetrates from the top surface 103 to the bottom surface 104. A first convection groove 131 formed by recessing from the abutting surface 101 toward the mounting surface 102 and a second convection groove 132 recessed from the mounting surface 102 toward the abutting surface 101 are defined in the partition wall 13 , and the second convection groove 132 is separately provided. On the upper and lower sides of the terminal holding portion 14 described above. The bottom surface 104 of the insulative housing 10 defines an escape slot 16 communicating with the first terminal receiving passage 11 and the second terminal receiving passage 12, and the escape slot 16 is disposed at a terminal end of the male power terminal 20 On both sides of 23. The heat dissipation channel is formed by combining the convection hole 151, the first convection groove 131, the second convection groove 132, the escape groove 16 and the heat dissipation groove 212 to generate the first terminal 201 in the first terminal receiving passage 11. The heat generated by the second terminal 202 in the second terminal receiving passage 12 is dissipated, and the heat dissipation effect is good.

[0052]

Referring to the fifth and eighth embodiments, one end of the insulative housing 10 is further provided with a plurality of receiving slots 17 for receiving the plurality of male terminal terminals 30 and a side of the receiving slot 17 for receiving the first limit. The limit slot 18 of the bit block 40. The male terminal terminal 30 includes a contact portion 31 that abuts the socket connector 200, a terminal tail portion 33 that is soldered and fixed to the circuit board, and a fixing portion 32 that connects the contact portion 31 and the terminal tail portion 33. The contact portion 31 and the fixing portion 32 are both It is housed in the storage groove 17. The public signal terminals 30 are divided into four groups, and the structure of each group of male signal terminals 30 is the same, except that the four groups of male signal terminals 30 are gradually reduced in size and arranged in four rows to form a step.

[0053]

The first limiting block 40 is provided with a plurality of first through holes 41 through which the terminal tails 33 of the male signal terminals 30 pass. The first through holes 41 are also arranged in a stepped manner to accommodate four sets of male ends. Terminal tail 33 of signal terminal 30. A bump 42 is protruded from the two sides of the first limiting block 40. The insulating body 10 is provided with a hook 19 on the two sides of the limiting slot 18 for engaging with the protruding block 42. The engagement of the bump 42 and the hook 19 fixes the first limiting block 40 in the limiting slot 18 .

[0054]

Referring to the ninth and tenth drawings, the socket connector 200 includes a plastic body 50, a plurality of female power terminals 60 and a plurality of female terminal terminals 70 received in the plastic body 50, and is used for limiting the foregoing plurality The second limit block 80 of the female signal terminal 70.

[0055]

Referring to the eleventh and twelfth drawings, the plastic body 50 is formed with a front end surface 501 that is opposite to the mating surface 101 of the plug connector 100 and a rear end surface 502 that is opposite to the front end surface 501. The three-terminal receiving passage 51 extends from the front end surface 501 to the rear end surface 502 for receiving the female end power terminal 60, and the plurality of fourth terminal receiving passages 52 extend from the front end surface 501 to the rear end surface 502 for receiving the female end. Signal terminal 70. A guiding post 53 is protruded from the two ends of the plastic body 50. When the socket connector 200 is mated with the plug connector 100, the guiding post 53 is received in the through slot 105 to ensure the socket connector 200 and the socket connector 200 are The plug connector 100 is docked and stable.

[0056]

A partition portion 54 is formed between the two adjacent third terminal receiving passages 51. The partition portion 54 defines a recess 541 formed concavely from the front end surface 501 toward the rear end surface 502 and a rear end surface 502 facing the front end surface 501. The third convection groove 542 is formed by the recess so that the heat generated by the female terminal power terminal 60 is dissipated by the groove 541 and the third convection groove 542. The two sides of the spacer portion 54 respectively protrude against the female power terminal 60 against the front end surface 501.

[0057]

On the side of the rear end surface 502, a terminal holding portion 544 is protruded from a side of the bottom portion of the partition portion 54. The terminal holding portion 544 is located below the third convection groove 542 and is coplanar with the bottom of the plastic body 50. An air outlet 55 communicating with the third terminal receiving passage 51 is defined in the bottom of the plastic body 50, and the air outlet 55 is located at a front side of the terminal holding portion 544, so that the female power terminal 60 is received at the third terminal. The heat generated in the passage 51 can be dissipated by the aforementioned air outlet 55. The fourth terminal receiving passage 52 is located at one end of the plastic body 50, and the side of the fourth terminal receiving passage 52 is provided with a receiving groove 56 for receiving the second limiting block 80. There is a hook 57.

[0058]

Referring to FIG. 13 , the plurality of female terminal power terminals 60 are correspondingly received in the third terminal receiving passage 51 , and the female power terminal 60 includes two female terminal power terminals disposed opposite to each other. Each of the terminals has an abutting portion 61 electrically connected to the contact portion 21 of the male power supply terminal 20, a welded portion 63 electrically connected to the circuit board, and a connecting portion 62 connecting the abutting portion 61 and the welded portion 63. At least two contact arms 611 are formed on the abutting portion 61 opposite to the contact fingers 211 of the male power terminal 20, and an opening slot 612 is formed between the adjacent two contact arms 611, so that the female power terminal 60 is docked. The heat generated when the portion 61 is in contact with the contact portion 21 of the male power terminal 20 can be dissipated by the opening groove 612 and the heat dissipation groove 212. When the female terminal power terminal 60 is received in the third terminal receiving passage 51, the contact arm 611 abuts against the abutting 543 to prevent the contact arm 611 from protruding beyond the front end surface 501.

[0059]

A barb 621 is protruded from the upper and lower ends of the connecting portion 62 to hardly interfere with the third terminal receiving passage 51 to restrict displacement of the female end power terminal 60 in the third terminal receiving passage 51. The side of the connecting portion 62 adjacent to the soldering portion 63 is provided with a torn rib 622, so that when the female end power terminal 60 is received in the third terminal receiving passage 51, the rib 622 and the terminal engaging portion 544 occur. The female terminal power supply terminal 60 is restricted from moving up and down in the third terminal housing passage 51 by interference. The thickness of the soldering portion 63 is smaller than the thickness of the connecting portion 62, so that the solder portion 63 and the connecting portion 62 are formed in a stepped shape to facilitate soldering and fixing to the circuit board. The air outlet grooves 55 are provided on both sides of the welded portion 63.

[0060]

Referring to FIG. 14 , the female terminal terminal 70 includes an abutting portion 71 that abuts the contact portion 31 of the male signal terminal 30 , a soldering portion 73 that is soldered and fixed to the circuit board, and a connecting abutting portion 71 and a soldering portion 73 . In the connecting portion 72, the abutting portion 71 and the connecting portion 72 are housed in the fourth terminal receiving passage groove 52. The female signal terminals 70 are also divided into four groups, and the structure of each group of female signal terminals 70 is the same, except that the four groups of female signal terminals 70 are gradually reduced in size and arranged in four rows to form a step. Therefore, it is convenient to interface with the public signal terminal 30. The second limiting block 80 is provided with a plurality of second through holes 81 through which the soldering portions 73 of the female signal terminals 70 pass. The second through holes 81 are also arranged in a stepped manner to accommodate the four sets of female ends. The soldering portion 73 of the signal terminal 70. A protrusion 82 is formed on the two sides of the second limiting block 80 to be engaged with the hook 57. The second limiting block 80 is fixed to the second limiting block 80 by the cooperation of the protruding block 82 and the hook 57. The aforementioned receiving groove 56 is inside.

[0061]

Please refer to the fifteenth figure, which is a perspective view of another embodiment of the aforementioned socket connector 200. In the present embodiment, the socket connector 200' has the same structure as the socket connector 200. The difference is that in the embodiment, the plastic body 50' is further provided with a heat dissipation hole above the mating portion 61 of the female power terminal 60. The heat dissipation hole 58 is recessed from the front end surface 501' toward the rear end surface and communicates with the third terminal receiving passage 51 to dissipate heat generated by the female power terminal 60.

[0062]

In summary, the electrical connector assembly 1 of the present invention is provided with a terminal holding portion 14 in the first terminal receiving passage 11 and the second terminal receiving passage 12 of the plug connector 100, and the first terminal receiving passage is provided. The terminal holding portion 14 in the first terminal holding portion 14 and the terminal holding portion 14 in the second terminal receiving passage 12 are arranged in a height-displacement arrangement in the height direction of the plug connector 100, so that the male-end power supply terminal 20 can be not only provided by the fixing portion 22 The first terminal 201 is prevented from being erroneously inserted into the second terminal receiving passage 12, and the second terminal 202 is erroneously inserted into the first terminal receiving passage 11 to prevent the second terminal 202 from being erroneously inserted into the corresponding terminal receiving passage. The effect is better; on the other hand, by providing heat dissipation channels in the plug connector 100 and the socket connector 200 respectively, heat generated when the plug connector 100 is docked with the socket connector 200 can be dissipated by the heat dissipation channel. The heat dissipation effect is better.

[0063]

It is to be understood that the equivalent changes to the present invention made by the teachings of the present invention should be included in the scope of the present invention.

10‧‧‧Insulated body

102‧‧‧Installation surface

103‧‧‧ top surface

104‧‧‧ bottom

105‧‧‧through slot

11‧‧‧First terminal receiving channel

12‧‧‧Second terminal receiving channel

13‧‧‧ partition wall

132‧‧‧Second convection trough

14‧‧‧Terminal card holder

15‧‧‧Dust cover

151‧‧‧ convection hole

16‧‧‧ escape trough

17‧‧‧storage trough

18‧‧‧Limited slot

19‧‧‧ card hook

Claims (26)

[Item 1] A plug connector mounted on a circuit board for mating with a receptacle connector, comprising:
The insulative housing has a mating surface that abuts the socket connector, a mounting surface opposite to the mating surface, a top surface and a bottom surface of the connecting mating surface and the mounting surface, and a plurality of first terminal receiving passages and a second terminal receiving passage The first terminal is received in the first terminal receiving passage, and the second terminal is received in the second terminal, and the first terminal and the second terminal are respectively connected to the first terminal. Each of the male terminal power terminals has a contact portion electrically connected to the socket connector, a terminal tail portion electrically connected to the circuit board, and a fixing portion connecting the contact portion and the terminal tail portion;
a terminal holding portion is disposed in the first terminal receiving passage and the second terminal receiving passage, and the fixing portion of the male terminal power terminal and the terminal holding portion cooperate to fix the male terminal power terminal to the corresponding terminal. The terminal holding portion of the first terminal receiving passage and the terminal holding portion of the second terminal receiving passage are arranged in a height misalignment in the height direction of the plug connector. [Item 2] The plug connector of claim 1, wherein the outer wall surface of the fixing portion is provided with two cantilevered arms, and the two cantilever arms are distributed up and down to receive the male terminal at the male terminal. When the passage is received, the terminal catching portion is sandwiched between the two cantilevers. [Item 3] The plug connector of claim 2, wherein the cantilever of the first terminal and the cantilever of the second terminal form a high and low misalignment in the height direction of the plug connector to prevent the first terminal from being erroneously inserted into the foregoing The second terminal receiving passage is erroneously inserted into the first terminal receiving passage. [Item 4] The plug connector of claim 1, wherein the plug connector further has a heat dissipation passage extending from the top surface to the bottom surface and from the mating surface to the mounting surface. [Item 5] The plug connector of claim 4, wherein the insulating body is provided with a dust cover on the upper and lower sides of the contact portion of the male power terminal, and the heat dissipation channel is disposed between the adjacent two dust covers. The convection hole, and the convection hole penetrates from the top surface to the bottom surface. [Item 6] The plug connector of claim 4, wherein the contact portion is formed with at least two contact fingers that abut the socket connector, and the heat dissipation channel includes a heat sink formed between the adjacent two contact fingers. . [Item 7] The plug connector of claim 4, wherein a partition wall is formed between the adjacent two terminal receiving passages in the first terminal receiving passage and the second terminal receiving passage, and the heat dissipation passage is included in the foregoing a first convection groove formed on the partition wall and recessed from the abutting surface toward the mounting surface, and a second convection groove formed from the mounting surface toward the abutting surface. [Item 8] The plug connector of claim 7, wherein the terminal latching portion is formed to protrude outwardly from the sidewalls of the partition wall, and the second convection slot is disposed on the upper and lower sides of the terminal latching portion. . [Item 9] The plug connector of claim 4, wherein the heat dissipation passage includes an escape slot that is open to the bottom surface of the insulative housing and communicates with the first terminal receiving passage and the second terminal receiving passage, and the foregoing escape The trough is disposed on both sides of the terminal tail of the male terminal power terminal. [Item 10] The plug connector of claim 1, wherein the terminal tail portion of the male terminal power terminal includes a soldering leg fixed to the circuit board, and the thickness of the soldering leg is smaller than a thickness of the terminal tail portion, so that the soldering leg is A stepped shape is formed between the terminal tail portion and the terminal. [Item 11] The plug connector of claim 1, wherein the plug connector further comprises a plurality of male terminal terminals received in the insulating body and a limiting block for limiting the plurality of male terminal terminals. [Item 12] An electrical connector assembly comprising a plug connector and a receptacle connector mating with each other, wherein the plug connector comprises:
The insulative housing has a mating surface that abuts the socket connector, a mounting surface opposite to the mating surface, a top surface and a bottom surface of the connecting mating surface and the mounting surface, and a plurality of first terminal receiving passages and a second terminal receiving passage The first terminal and the second terminal are respectively received in the first terminal receiving channel and the second terminal receiving channel. The first terminal and the second terminal are respectively received in the first terminal receiving channel and the second terminal receiving channel. Each of the male power terminals has a contact portion electrically connected to the socket connector, a terminal tail portion electrically connected to the circuit board, and a fixing portion connecting the contact portion and the terminal tail portion;
A terminal holding portion is disposed in the first terminal receiving passage and the second terminal receiving passage, and the fixing portion of the male end power terminal and the terminal holding portion cooperate to fix the male end power terminal to the corresponding terminal receiving passage And the terminal latching portion of the first terminal receiving passage and the terminal latching portion of the second terminal receiving passage form a high and low misalignment arrangement in a height direction of the plug connector;
The socket connector includes: a plastic body having a front end surface opposite to the mating surface of the plug connector and a rear end surface disposed opposite to the front end surface, the plurality of third terminal receiving passages penetrating from the front end surface to the rear end surface And a plurality of female terminal power terminals, correspondingly received in the third terminal receiving passage, each female terminal power terminal has an abutting portion electrically connected to a contact portion of the male power terminal, and is electrically connected to the welding of the circuit board And a connecting portion connecting the butting portion and the welded portion. [Item 13] The electrical connector assembly of claim 12, wherein the outer wall surface of the fixing portion is provided with two cantilevered arms, and the two cantilever arms are distributed up and down to be received in the first end of the male power terminal. In the terminal accommodating passage and the second terminal accommodating passage, the terminal catching portion is sandwiched between the two cantilevers. [Item 14] The electrical connector assembly of claim 13, wherein the cantilever of the first terminal and the cantilever of the second terminal are arranged in a height misalignment manner in a height direction of the plug connector to prevent the first terminal from being misinserted. In the second terminal receiving passage, the second terminal is erroneously inserted into the first terminal receiving passage. [Item 15] The electrical connector assembly of claim 12, wherein the plug connector further has a heat dissipation passage extending from the top surface to the bottom surface and from the mating surface to the mounting surface. [Item 16] The electrical connector assembly of claim 15, wherein the insulating body is provided with a dust cover on the upper and lower sides of the contact portion of the male power terminal, and the heat dissipation channel is disposed on the adjacent two dust covers. The convection hole is interposed, and the convection hole penetrates from the top surface to the bottom surface. [Item 17] The electrical connector assembly of claim 15, wherein the contact portion of the male terminal power terminal is formed with at least two contact fingers that are butted to the female power terminal, and the heat dissipation channel is formed in two adjacent The heat sink between the contacts. [Item 18] The electrical connector assembly of claim 15, wherein the first terminal receiving passage and the second terminal receiving passage are formed with a partition wall between the adjacent two terminal receiving passages, and the heat dissipation passage is included in the a first convection groove formed on the partition wall and recessed from the mating surface toward the mounting surface, and a second convection groove formed by the recess from the mounting surface toward the abutting surface. [Item 19] The electrical connector assembly of claim 18, wherein the terminal latching portion is formed to protrude outwardly from the sidewalls of the partition wall, and the second convection slot is disposed above and below the terminal latching portion. side. [Item 20] The electrical connector assembly of claim 15, wherein the heat dissipation channel comprises a escaping groove extending from a bottom surface of the insulating body and communicating with the first terminal receiving passage and the second terminal receiving passage, and the foregoing The escape trough is disposed on both sides of the terminal tail of the above-mentioned male power supply terminal. [Item 21] The electrical connector assembly of claim 12, wherein the terminal tail portion of the male terminal power terminal comprises a soldering leg fixed to the circuit board, the thickness of the soldering leg being smaller than the thickness of the terminal tail portion, so that the soldering is performed. A step is formed between the foot and the tail of the terminal. [Item 22] The electrical connector assembly of claim 17, wherein the mating portion of the female power terminal is formed with at least two contact arms that are opposite to the contact fingers of the male power terminal, and the adjacent two contact arms. An open groove is formed between them. [Item 23] The electrical connector assembly of claim 12, wherein a partition portion is formed between the two adjacent third terminal receiving passages, and the partition portion is formed with a recess formed by recessing from the front end surface toward the rear end surface. The groove and the third convection groove formed by recessing from the rear end surface toward the front end surface, so that the heat generated by the female power terminal is dissipated by the groove and the third convection groove. [Item 24] The electrical connector assembly of claim 12, wherein the bottom of the plastic body is provided with an air outlet groove communicating with the third terminal receiving passage, and the air outlet slot is separately disposed on the welding of the female terminal power terminal. On both sides of the department. [Item 25] The electrical connector assembly of claim 12, wherein the thickness of the welded portion of the female terminal power terminal is smaller than the thickness of the connecting portion such that a stepped shape is formed between the welded portion and the connecting portion. [Item 26] The electrical connector assembly of claim 12, wherein the plastic body is provided with a heat dissipation hole above the mating portion of the female terminal power terminal, and the heat dissipation hole is recessed from the front end surface toward the rear end surface and is formed with the third The terminal receiving passages are in communication to dissipate heat generated by the female power terminals.