TW201526395A - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector installed on a circuit board. The electrical connector includes an insulative housing, a plurality of electrical contacts received in the insulative housing, and a shell covering the insulative housing. The shell has a U-shaped first shell and a second shell matched with each other. The first shell includes a base portion and two limiting portions extending from two sides of the base portion. The limiting portion defines a slot. The second shell has a shielding plate and two buckles extending from two sides of the shielding plate. The buckle has two resisting portions at two sides thereof. The buckle passes through the slot and engages with the resisting portion to restrict the limiting portion.

Description

Electrical connector 【0001】

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

【0002】

With the rapid development of electronic technology, electrical connectors are widely used in electronic products to exchange information, data, and the like with external devices. The electrical connector generally includes an insulative housing, a terminal received in the insulative housing, and a housing that covers the outside of the insulative housing. The soldering legs of the aforementioned terminals extend from the insulating body to be soldered to the circuit board.

[0003]

In order to meet the requirements of stable transmission signal and high transmission efficiency of electronic products, it is necessary to ensure that the connection stability of the electrical connector is strong. However, the structure of the existing QSFP connector is mostly a two-piece metal shell that cooperates with each other, so that when assembled, it is easy to be unstable and the shielding effect is poor, which may affect the normal conduction of the electrical signal, and the metal The overall strength of the shell is not sufficient.

[0004]

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

 

[0005]

It is an object of the present invention to provide an electrical connector that is not only structurally stable but also has a good shielding effect.

[0006]

To achieve the above object, the present invention is directed to an electrical connector comprising:

【0007】

The insulating body has an abutting surface and a mounting surface disposed opposite to the mating surface, and the terminal receiving groove penetrates from the mating surface to the mounting surface;

[0008]

a conductive terminal, wherein the conductive terminal is correspondingly received in the terminal receiving groove;

【0009】

Shading the housing, the shielding housing covering the outer side of the insulating body;

[0010]

Wherein the shielding housing comprises a first housing disposed in an inverted U shape and a second housing disposed in cooperation with the first housing, the first housing including a base portion and bending downward from both sides of the base portion a limiting portion, the end of the limiting portion is provided with a card slot, and the second housing comprises a shielding plate and a buckle portion extending upward from both sides of the shielding plate, and the two sides of the locking portion are respectively formed There is a resisting portion, and the latching portion passes through the card slot and cooperates with the abutting portion to limit the limiting portion at the same time.

[0011]

As a further improvement of the present invention, the two sides of the shielding plate of the second casing are respectively recessed with a plurality of grooves, and a resisting member is formed between the two adjacent grooves.

[0012]

As a further improvement of the present invention, the buckle portion is formed by bending upwardly from the end of the resisting member, and the width of the buckle portion is smaller than the width of the resisting member.

[0013]

According to a further improvement of the present invention, the abutting portion is formed on the abutting member and is disposed on both sides of the buckle portion.

[0014]

As a further improvement of the present invention, a pin press-fitted to the circuit board is disposed between two adjacent card slots, and the two sides of the shutter of the second casing are recessed with through holes for the pins to pass through.

[0015]

As a further improvement of the present invention, the through holes are disposed on both sides of the buckle portion and communicate with the groove.

[0016]

As a further improvement of the present invention, the distance between the locking portions on both sides of the second housing shutter is greater than the distance between the limiting portions on both sides of the first housing base.

[0017]

As a further improvement of the present invention, a finite slot is formed on the upper portion of the limiting portion corresponding to the slot, and a side of the limiting slot adjacent to one of the slots is provided with an outwardly projecting elastic piece.

[0018]

According to a further improvement of the present invention, the latching portion is provided with a receiving slot for receiving the elastic piece, wherein when the first housing and the second housing are matched, the elastic retaining limit is located in the receiving slot. .

[0019]

According to a further improvement of the present invention, a closed ground portion is formed on one end of the first casing away from the insulating body, and the ground portion is covered with a grounding piece.

[0020]

The electrical connector of the present invention is provided with a card slot at the end of the limiting portion of the first housing disposed in the inverted U shape, and a shutter is disposed on the second housing disposed in cooperation with the first housing and the cover is provided a buckle portion extending upwardly on both sides of the board, wherein the two sides of the buckle portion are respectively formed with a resisting portion, so that the buckle portion can be engaged with the abutting portion through the card slot to limit the inner and outer portions simultaneously The limiting portion further improves the assembly structure of the first housing and the second housing, and the shielding effect is better.

[0043]

100‧‧‧Electrical connector
10‧‧‧Insulated body
11‧‧‧Docking Department
111‧‧‧ docking surface
112‧‧‧Installation surface
113‧‧‧ raised parts
114‧‧‧ positioning slot
12‧‧‧Extended wall
121‧‧‧Installation slot
122‧‧‧ Guide surface
13‧‧‧ accommodating space
14‧‧‧First terminal receiving slot
15‧‧‧Second terminal receiving slot
16‧‧‧ containment chamber
20‧‧‧Electrical terminals
201‧‧‧First conductive terminal
2011‧‧‧First Contact
2012‧‧‧First Holding Department
2013‧‧‧Terminal tail
2014‧‧‧First Barb
202‧‧‧Second conductive terminal
2021‧‧‧Second contact
2022‧‧‧Second holding unit
2023‧‧‧Welding Department
2024‧‧‧second barb
30‧‧‧ Fixed seat
31‧‧‧ Body Department
311‧‧‧ slot
32‧‧‧Bends
321‧‧‧first groove
322‧‧‧ vents
323‧‧‧Bumps
40‧‧‧Shaded housing
41‧‧‧First housing
411‧‧‧ base
4111, 4121‧‧‧ slotting
4112, 4122‧‧‧Reminder
412‧‧‧Limited
413‧‧‧ card slot
414, 433 ‧ ‧ sales
415‧‧‧ Limit slot
416‧‧‧Shrap
417‧‧‧ Grounding Department
418‧‧‧ Grounding piece
42‧‧‧ second housing
421‧‧‧ ‧
422‧‧‧Snap Department
4221‧‧‧ Reception trough
423‧‧‧second groove
424‧‧‧Resistance
425‧‧‧Resistance Department
426‧‧‧Perforation
43‧‧‧ third housing
431‧‧‧Mask Department
432‧‧‧First Card Holder
4321, 4341‧‧‧ accommodating slots
434‧‧‧Second Card Holder

[0021]

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 the conductive terminal shown in the second figure.
Figure 6 is a perspective view of the mount shown in the second figure.
The seventh drawing is a perspective view of the first housing shown in the second figure.
The eighth figure is a perspective view of the second housing shown in the second figure.
The ninth drawing is a perspective view of the third housing shown in the second figure.

[0022]

Referring to the first and second figures, the electrical connector 100 of the present invention is a QSFP connector for soldering to a circuit board (not shown) and corresponding to the mating connector (not shown). ) Relative cooperation. The electrical connector 100 includes an insulative housing 10 , a conductive terminal 20 received in the insulative housing 10 , a fixing base 30 for fixing the conductive terminal 20 , and a shielding case 40 covering the outside of the insulative housing 10 . The foregoing conductive terminal 20 includes a first conductive terminal 201 and a second conductive terminal 202.

[0023]

As shown in the first to fourth figures, the insulative housing 10 includes an abutting portion 11 and a pair of extending walls 12 extending rearward from opposite sides of the abutting portion 11 respectively. The abutting portion 11 and the pair of extending walls 12 together form a receiving space 13 for receiving the fixing base 30. The abutting portion 11 is provided with an abutting surface 111 and a mounting surface 112 that is disposed opposite to the abutting surface 111 , and the mounting surface 112 is disposed between the abutting portion 11 and the receiving space 13 .

[0024]

A terminal receiving groove for receiving the conductive terminal 20 is defined in the insulative housing 10, and the terminal receiving groove is inserted into the mounting surface 112 from the mating surface 111, and is connected to the receiving space 13 after passing through the mating portion 11 in the front and rear. through. The terminal receiving slot includes a first terminal receiving slot 14 for receiving the first conductive terminal 201 and a second terminal receiving slot 15 for receiving the second conductive terminal 202. In this embodiment, since the first conductive terminal 201 and the second conductive terminal 202 are similar in structure, the first terminal receiving groove 14 and the second terminal receiving groove 15 are similar in structure.

[0025]

The receiving portion 16 is configured to receive the receiving cavity 16 of the mating connector. The first terminal receiving slot 14 is recessed from the inner side wall of the receiving cavity 16 , and the second terminal receiving slot 15 is formed from the receiving cavity 16 . The inner side wall is recessed, and the first terminal receiving groove 14 is disposed between the two adjacent second terminal receiving grooves 15 in the height direction of the insulative housing 10, so that the mating connector is inserted into the receiving cavity. The first conductive terminal 201 and the second conductive terminal 202 can be docked with the mating connector.

[0026]

The rear side of the abutting portion 11 of the insulative housing 10 is provided with a plurality of protrusions 113 protruding rearwardly on the mounting surface 112, and a positioning groove 114 is formed between the two adjacent protrusions 113. In this embodiment, The positioning groove 114 is provided corresponding to the second terminal receiving groove 15 and penetrates the insulating body 10 up and down. The pair of extending walls 12 are respectively provided with mounting grooves 121, and the two mounting grooves 121 are oppositely disposed, and each of the mounting grooves 121 is provided with an inclined guiding surface 122.

[0027]

Referring to FIG. 5 and the second to fourth figures, the first conductive terminal 201 is correspondingly received in the first terminal receiving groove 14 . The first conductive terminal 201 includes a first contact portion 2011 electrically connected to the mating connector, a terminal tail portion 2013 electrically connected to the circuit board, and a first holding portion connecting the first contact portion 2011 and the terminal tail portion 2013. 2012.

[0028]

The first contact portion 2011 is elastically bent to partially protrude into the receiving cavity 16 when the first contact portion 2011 is received in the first terminal receiving groove 14 , thereby facilitating the first contact portion 2011 and the foregoing The docking connector is docked. Each of the two sides of the first holding portion 2012 is provided with a first barb 2014, and the first barb 2014 is engaged with the first terminal receiving groove 14 to limit the first conductive terminal 201 to the first Displacement occurs in the terminal receiving groove 14.

[0029]

The second conductive terminal 202 is correspondingly received in the second terminal receiving groove 15 . The second conductive terminal 202 includes a second contact portion 2021 electrically connected to the mating connector, a soldering portion 2023 electrically connected to the circuit board, and a second holding portion connecting the second contact portion 2021 and the soldering portion 2023. 2022.

[0030]

The second contact portion 2021 is also elastically bent to partially protrude into the receiving cavity 16 when the second contact portion 2021 is received in the second terminal receiving groove 15 to facilitate the second contact portion 2021 and The aforementioned docking connectors are docked. The soldering portion 2023 is latched and received in the positioning groove 114 to facilitate soldering to the circuit board. The second barbs 2024 are respectively disposed on the two sides of the second holding portion 2022, and the second barbs 2024 are engaged with the second terminal receiving slots 15 to limit the second conductive terminals 202 to the second The inside of the terminal receiving groove 15 is displaced.

[0031]

In this embodiment, the first conductive terminal 201 is similar in structure to the second conductive terminal 202, and the difference between the two is that the first contact portion 2011 and the second contact portion 2021 are relatively elastically bent; The length of the holding portion 2012 is greater than the length of the second holding portion 2022; the length and height of the terminal tail portion 2013 are greater than the length and height of the welded portion 2023, respectively. The first conductive terminal 201 is correspondingly disposed between two adjacent second conductive terminals 202.

[0032]

Referring to the sixth embodiment and the second to fifth figures, the fixing base 30 is received in the receiving space 13 and integrally formed with the first conductive terminal 201. The fixing base 30 includes a main body portion 31 and a bent portion 32 that is bent downward from a side of the main body portion 31, so that the fixing base 30 has a substantially L-shaped cross section. A strip-shaped slot 311 is defined in the body portion 31, and the slot 311 extends through the body portion 31. The first retaining portion 2012 of the first conductive terminal 201 passes through the body portion 31 and is partially exposed. In the aforementioned slot 311, heat generated by the first holding portion 2012 can be dissipated through the aforementioned slot 311.

[0033]

a first recess 321 formed by recessing the sidewall from the sidewall of the bent portion 32 toward the body portion 31 and recessed from the top wall of the bent portion 32 toward the bottom wall, the first portion The groove 321 is disposed corresponding to the slot 311, and the terminal tail portion 2013 of the first conductive terminal 201 passes through the aforementioned bent portion 32 and is exposed to the first groove 321 . A plurality of heat dissipation holes 322 are defined in the bending portion 32, and the plurality of heat dissipation holes 322 are inserted back and forth through the bent portion 32, so that the heat generated by the terminal tail portion 2013 can pass through the first groove 321 and the plurality of heat dissipation holes 322. Dissipated. A protrusion 323 is protruded outwardly from the two side walls of the bent portion 32. The protrusion 323 is correspondingly received in the mounting groove 121 to limit the insulative housing 10 and the fixing base 30.

[0034]

Referring to the seventh to ninth drawings and in conjunction with the second to fifth figures, the shielding housing 40 includes a first housing 41 disposed in an inverted U shape and disposed in cooperation with the first housing 41. The second housing 42 and the third housing 43. The first housing 41 includes a base portion 411 and a limiting portion 412 extending downwardly from the two sides of the base portion 411. The end of the limiting portion 412 is provided with a card slot 413, between the two adjacent card slots 413. A pin 414 is provided that is press fit to the circuit board. A limiting slot 415 is defined in the limiting portion 412 corresponding to the slot 413, and a side of the limiting slot 415 adjacent to the slot 413 is provided with an outwardly projecting elastic piece 416.

[0035]

A closed ground portion 417 is formed on one end of the first casing 41 away from the insulating body 10, and the grounding portion 417 is covered with a grounding piece 418. A side of the base portion 411 opposite to the grounding portion 417 is provided with a slot 4111, and a side of the slot 4111 adjacent to the end of the base portion 411 is provided with an outwardly projecting resisting piece 4112. A slot 4121 is defined in a side of the limiting portion 412 opposite to the ground portion 417, and a side of the slot 4121 adjacent to the end of the limiting portion 412 is provided with an outwardly projecting resisting piece 4122. In the present embodiment, the groove 4111 has the same structure as the groove 4121, and the abutting piece 4112 has the same structure as the abutting piece 4122.

[0036]

The second housing 42 includes a shielding plate 421 and a locking portion 422 extending upwardly from the two sides of the shielding plate 421. The two sides of the locking portion 422 are respectively formed with a resisting portion 425, and the locking portion 422 is worn. The aforementioned slot 413 is engaged with the abutting portion 425 to limit the inner limiting portion 412 at the same time. Specifically, the two sides of the shutter 421 are respectively recessed with a plurality of second recesses 423, and a resisting member 424 is formed between the two adjacent second recesses 423. The latching portion 422 is formed from the resisting member. The end of the 424 is bent upwardly and extends, and the width of the buckle portion 422 is smaller than the width of the abutting member 424. The abutting portion 425 is formed on the abutting member 424 and is disposed on both sides of the locking portion 422.

[0037]

The two sides of the shutter 421 are further recessed with a through hole 426 through which the pin 414 passes. The through holes 426 are disposed on the two sides of the buckle portion 422 and on the outer side of the abutting portion 425 , and communicate with the second groove 423 . The distance between the locking portions 422 on the two sides of the shielding plate 421 is greater than the distance between the limiting portions 412 on the two sides of the base portion 411 of the first housing 41 to facilitate the first housing 41 and the second housing. 42 phase assembly fit.

[0038]

The receiving portion 422 is configured to receive the elastic piece 416. The locking piece 416 is disposed in the receiving groove 4221 when the first housing 41 and the second housing 42 are disposed. . When the first housing 41 and the second housing 42 are assembled and engaged, the abutting portion 425 abuts the pin 414, and the latching portion 422 is restrained to limit the limiting portion 412, and the elastic piece 416 is stuck. The first limit of the first housing 41 and the second housing 42 are ensured.

[0039]

The third housing 43 includes a mask portion 431, a first latching portion 432 extending from the top edge of the mask portion 431 toward the first housing 41, and extending downward from the bottom edge of the mask portion 431. The pin 433 and the second holding portion 434 which are bent and extended from the both sides of the mask portion 431 toward the first housing 41. The first holding portion 432 is provided with a receiving groove 4321 for projecting into the abutting piece 4112, and the second holding portion 434 is provided with a receiving groove 4341 for protrudingly extending the resisting piece 4122. The accommodating groove 4321 and the accommodating groove 4341 are both substantially rectangular. The first housing 41 and the third housing 43 can be stably matched by the cooperation of the abutting piece 4112 and the accommodating groove 4321 and the abutting piece 4122 and the accommodating groove 4341. better.

[0040]

In summary, the electrical connector 100 of the present invention has a strip-shaped slot 311 formed in the body portion 31 of the fixing base 30, and the bending portion 32 of the fixing base 30 is opened from the aforementioned bending. a first recess 321 recessed toward the outer body portion 31 in the outer sidewall of the folded portion 32 such that the terminal tail portion 2013 of the first conductive terminal 201 passes through the bent portion 32 and is exposed to the first recess 321 The fixing base 30 can not only fix the first conductive terminal 201 but also dissipate heat generated by the first conductive terminal 201, and has good gas permeability.

[0041]

On the other hand, the card slot 413 and the pin 414 between the adjacent two card slots 413 are disposed at the end of the limiting portion 412 of the first housing 41 disposed at the inverted U-shape, while the second housing 42 is simultaneously provided. The latching portion 422 and the abutting portion 425 on both sides of the latching portion 422 are disposed, so that when the first housing 41 and the second housing 42 are assembled and engaged, the abutting portion 425 abuts the pin 414. At the same time, the latching portion 422 is restrained to limit the position limiting portion 412, thereby not only limiting the inner and outer portions of the second housing 42 to the first housing 41, but also ensuring the first housing 41 and the first housing 41. The second housing 42 is stably matched, and the assembly structure is stable and the shielding effect is good.

[0042]

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

 

100‧‧‧Electrical connector

10‧‧‧Insulated body

111‧‧‧ docking surface

16‧‧‧ containment chamber

40‧‧‧Shaded housing

41‧‧‧First housing

411‧‧‧ base

412‧‧‧Limited

414‧‧ ‧ sales

416‧‧‧Shrap

418‧‧‧ Grounding piece

42‧‧‧ second housing

422‧‧‧Snap Department

432‧‧‧First Card Holder

434‧‧‧Second Card Holder

Claims (10)

[Item 1] An electrical connector includes: an insulative housing; the insulative housing has an abutting surface and a mounting surface disposed opposite to the mating surface; the terminal receiving slot penetrates from the mating surface to the mounting surface; the conductive terminal, the conductive terminal corresponds to the receiving In the terminal receiving groove; and the shielding case, the shielding case covers the outer side of the insulating body; wherein the shielding case comprises a first housing disposed in an inverted U shape and is opposite to the first housing The first housing includes a base portion and a limiting portion extending downward from both sides of the base portion, the end of the limiting portion is provided with a card slot, and the second housing includes a shutter And a locking portion extending upward from both sides of the shielding plate, wherein the two sides of the locking portion are respectively formed with a resisting portion, and the locking portion passes through the card slot and cooperates with the abutting portion to be both inside and outside Limit the aforementioned limit. [Item 2] The electrical connector of claim 1, wherein the two sides of the shielding plate of the second casing are respectively recessed with a plurality of grooves, and a resisting member is formed between the two adjacent grooves. [Item 3] The electrical connector of claim 2, wherein the latching portion is bent upwardly from the end of the resisting member, and the width of the latching portion is smaller than the width of the resisting member. [Item 4] The electrical connector of claim 3, wherein the abutting portion is formed on the abutting member and is disposed on both sides of the latching portion. [Item 5] The electrical connector of claim 2, wherein a pin press-fitted to the circuit board is disposed between two adjacent slots, and the two sides of the shutter of the second housing are recessed for the foregoing The pin passes through the perforation. [Item 6] The electrical connector of claim 5, wherein the through hole is disposed on both sides of the buckle portion and communicates with the groove. [Item 7] The electrical connector of claim 1, wherein a distance between the buckle portions on both sides of the second housing shutter is greater than a distance between the limiting portions on both sides of the first housing base. [Item 8] The electrical connector of claim 1, wherein the limiting portion further defines a finite slot corresponding to the slot, and the limiting slot is adjacent to a side of the slot. The protruding shrapnel. [Item 9] The electrical connector of claim 8, wherein the latching portion is provided with a receiving slot for receiving the elastic piece, wherein the elastic piece is arranged when the first housing and the second housing are disposed. The card holding limit is located in the aforementioned receiving slot. [Item 10] The electrical connector of claim 1, wherein the first housing is formed with a closed ground portion at one end of the insulating body, and the grounding portion is covered with a grounding piece.