TWI424618B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector for transmitting a DC power source.

An electrical connector is generally installed on the side of the base of the notebook computer, and the electrical connector is connected to a DC power source and transmits a power signal. The electrical connector disclosed in Taiwan Patent Publication No. 254757 includes a power socket, an annular conductive piece and a solid positive pin, wherein the annular conductive piece is inserted from the side of the insulating body, and the solid positive pin penetrates from the other side. In the central position, the conductive pin of the solid positive pin can be bent downward, and a recess is provided in the seat portion thereof, and an opening is provided with respect to the power socket here, and a positioning piece can be inserted and fitted The groove of the solid positive pin provides a stable clamping effect. However, in the manufacturing process, the connector needs to additionally manufacture a positioning piece to fix the solid positive pin in the power socket, and a complicated process is also generated in the assembly process.

In view of the above drawbacks, it is indeed necessary to design a structurally simplified electrical connector to solve the problems in the prior art.

It is an object of the present invention to provide an electrical connector that simplifies the electrical connector structure by improving the terminal holding structure.

In order to achieve the above object, the present invention adopts the following technical solution: an electrical connector includes: an insulative housing having a receiving space extending rearward from the front end; and a receiving cavity extending from the rear end and communicating with the receiving space; The central terminal is received in the receiving cavity of the insulative housing and extends into the receiving space; the elastic terminal is received in the insulating body; wherein the receiving cavity is provided with a holding section, and the holding section comprises a limiting slot and adjacent insulation a passing portion of the rear end surface of the body, wherein the center terminal is provided with a holding portion having a long side and a short side in a cross-sectional contour, and a holding block is formed at a short side of the holding portion, and the holding portion of the center terminal passes through The rotating card is located in the limiting slot, and the receiving cavity further includes a receiving section having a diameter smaller than a diameter of the holding section, and a step is formed therebetween.

Compared with the prior art, the present invention fixes the two together by the holding structure between the terminal and the insulating body, reduces the parts of the electrical connector, simplifies the structure of the electrical connector, and simplifies the manufacturing process of the electrical connector and reduces the cost. .

100‧‧‧Electrical connector

1‧‧‧Insulating body

11‧‧‧ front end

12‧‧‧ rear end face

13‧‧‧ side

131‧‧‧First bump

132‧‧‧second bump

133‧‧‧ third bump

134‧‧‧first depression

135‧‧‧second depression

14‧‧‧ top surface

141‧‧‧Limited blocks

15‧‧‧ bottom

151‧‧‧ Groove

152‧‧‧fixing bolt

16‧‧‧ accommodating space

17‧‧‧ containment chamber

171‧‧‧ Containment section

172‧‧‧ Holding section

1721‧‧‧ passage

1722‧‧‧Limited slot

1723‧‧‧Limited blocks

1724‧‧‧boot block

173‧‧‧Ladder

18‧‧‧ Containment passage

19‧‧‧ openings

2‧‧‧Center terminal

21‧‧‧ Holding Department

211‧‧‧ card holding block

22‧‧‧Docking Department

23‧‧‧Weld Department

231‧‧‧welding holes

3‧‧‧Flexible terminals

31‧‧‧ Main body

32‧‧‧Flexible finger

33‧‧‧ holding piece

34‧‧‧welding piece

4‧‧‧Shaded housing

41‧‧‧First shielding shell

411‧‧‧ interface

412‧‧‧Connecting piece

413‧‧‧Fixed tablets

414‧‧‧First shrapnel

42‧‧‧Second shielding shell

421‧‧‧ top wall

422‧‧‧ side wall

423‧‧‧Fixed feet

424‧‧‧Second shrapnel

425‧‧‧Positioning holes

The first figure is a perspective view of the electrical connector of the present invention; the second figure is a perspective view of the electrical connector of the present invention, wherein the center terminal has been rotated 90 degrees and is in a card state; the third figure is the electrical connector of the present invention. 3 is an exploded perspective view of another embodiment of the electrical connector of the present invention; the fifth diagram is a three-dimensional assembly diagram of the electrical connector of the present invention, wherein the center terminal is in an unfixed state just inserted into the insulating body; Figure 6 is a cross-sectional view taken along the line VI-VI in the first figure; The seventh drawing is a cross-sectional view taken along the line VII-VII in the first drawing.

Please refer to the first to second figures, which are perspective views of the electrical connector 100 according to an embodiment of the present invention.

Referring to the third to fourth figures, in conjunction with the sixth to seventh embodiments, the electrical connector 100 of the present invention includes an insulative housing 1, a center terminal 2, an elastic terminal 3, and a shield housing 4 assembled to the insulative housing.

The insulative housing 1 includes a front end surface 11 , a rear end surface 12 , two side surfaces 13 , a top surface 14 , and a bottom surface 15 . The top surface 14 has two limiting blocks 141 , and the two limiting blocks 141 are respectively located on the top surface 14 . Front and rear edges. The front end edge, the middle end and the rear end edge of the side surface 13 are respectively provided with an inverted H-shaped first bump 131, an inverted T-shaped second bump 132 and a third bump 133 protruding outward from the surface, the first Two first recesses 134 are formed between the bumps 131 and the side faces 13, and the second bumps 132 and the third bumps 133 are connected together to form an inverted H-shape and form two second recesses 135 with the side faces. The first bump 131 and the second bump 132 have the same height, and the third bump 133 is slightly higher than the first bump 131 and the second bump 132. A receiving space 16 extending from the front to the rear and a receiving cavity 17 extending rearward from a central position of the rear surface of the receiving space 16 is disposed in the front end surface 11 of the insulative housing 1 . The receiving cavity 17 extends through the rear end surface 12 of the insulative housing 1 . The cavity 17 is divided into two sections, which are respectively a receiving section 171 and a holding section 172. The receiving section 171 has a cross-sectional diameter smaller than the cross-sectional diameter of the holding section 172 and forms a step 173 therebetween, and the holding section 172 is formed. The invention includes a passage portion 1721 adjacent to the rear end surface, a limiting groove 1722 between the passing portion 1721 and the step 173, and a limiting block 1723 protruding inward from the left and right inner walls of the passing portion 1721, respectively, and the inner wall of the passing portion 1721 respectively. Four An inwardly extending guide block 1724, the limiting slot 1722 is located between the limiting block 1723 and the guiding block 1724 and the step 173, and the left and right sides of the rear surface of the receiving space 16 are respectively provided with a self-rear surface to the insulation The rear end surface 12 of the body 1 extends into the receiving passage 18, and the rear end surface 12 of the insulating body 1 is provided with two openings 19 respectively communicating with the receiving passage 18. The top surface 14 of the insulative housing 1 is provided with a recess 151 extending at an intermediate position toward the rear end surface 12, and the recess 151 is in communication with the receiving space 16. A fixing bolt 152 is disposed at an intermediate position of the bottom surface 15 of the insulative housing 1 for limiting the position of the electrical connector 100 in an electronic device (not shown).

The center terminal 2 includes a holding portion 21 received in the holding portion 172 of the receiving cavity 17 of the insulative housing 1 , a cylindrical abutting portion 22 extending forward from the holding portion 21 , and a welding portion 23 extending rearward from the holding portion 21 . The holding portion 21 is a cylinder which cuts the left and right portions along the vertical plane and has a linear long side and an arc-shaped short side. The outer diameter of the holding portion 21 is equal to the limiting groove in the holding portion 172. The cross-sectional diameter of the holding portion 21 is equal to the width of the limiting groove 1722 in the holding portion 172. The two short sides of the holding portion 21 are respectively provided with a card protruding from the circumferential surface of the butting portion 22 The block 211 is fixed to the insulative housing 1 by the interference fit of the latching block 211 of the retaining portion 21 and the limiting slot 1722. The step 173 and the limiting block 1723 of the insulative housing 1 respectively stop the center. The holding portion 22 of the terminal 2 is received in the receiving portion 171 of the receiving cavity 17 and the receiving space 16 of the insulative housing 1. The soldering portion 23 is partially exposed outside the rear end surface 12 of the insulative housing 1 and The end is semi-cylindrical and has a A welded hole 231 penetrating through the semi-cylindrical shape.

The elastic terminal 3 includes an annular body portion 31, a plurality of elastic fingers 32 extending forward from the main body portion 31, and a plurality of holding pieces 33 extending from the main body portion 31 and a soldering piece. 34. The elastic terminal 3 is received in the receiving space 16 of the insulative housing 1 , and the holding piece 33 and the soldering piece 34 respectively pass through the corresponding receiving passages 18 of the insulative housing 1 , and the end of the holding piece 33 is bent and received in the opening 19 . The bent end of the holding piece 33 fixes the elastic terminal 3 in the insulative housing 1. The soldering piece 34 is received in the recess 151 and partially exposed outside the rear end surface 12 of the insulative housing 1.

The shielding housing 4 is stamped from a metal sheet and includes a first shielding housing 41 and a second shielding housing 42. The center of the first shielding shell 41 is provided with a circular pair interface 411 which is substantially the same as the cross section of the receiving space 16 from the top to the bottom. The pair of interfaces 411 are provided with a plurality of connecting pieces 412 extending rearward. The connecting piece 412 is electrically connected to the elastic finger 32 of the elastic terminal 3. The left and right side edges of the first shielding shell 41 are respectively provided with fixing pieces 413 extending rearward, and the first elastic pieces 414 extending inwardly and forwardly are respectively disposed in the middle of the fixing pieces 413, the first The elastic pieces 414 are respectively received in the first recess 134 of the insulative housing 1 and prevent the first shielding shell 41 from coming off the insulating body 1.

The second shielding shell 42 includes a top wall 421, sidewalls 422 extending downward from the left and right sides of the top wall 421, and fixing legs 423 extending outward from the ends of the two side walls 422, respectively. The second elastic piece 424 is disposed in the second recess 135 of the insulative housing 1 to prevent the second shielding shell 42 from falling off the insulating body 1 on the fixing leg 423. A positioning hole 425 is provided. The front edge of the sidewall 422 of the second shielding shell 42 covers the outside of the fixing piece 413 of the first shielding shell 41 and is electrically connected.

The electrical connector 100 further includes a plurality of cables (not shown) that are electrically connected to the soldering portion 23 of the center terminal 2 and the solder tab 34 of the elastic terminal 3, respectively. Then, the inner conductor (not shown) of one of the cables penetrates the welding hole 231 on the welded portion 23 and is welded together.

Referring to the third to fifth embodiments, when the electrical connector of the present invention is assembled, the central terminal 2 and the elastic terminal 3 are respectively inserted into the corresponding receiving cavity 17 and the receiving space 16 from the rear end surface 12 and the front end surface 11 of the insulating body 1. The center terminal 2 is guided and inserted through the guiding block 1724 of the segment 172. When the holding block 211 abuts the step 173, the center terminal 2 is rotated by 90 degrees. The two holding blocks 211 of the holding portion 21 respectively The interference between the limiting slot 1722 and the holding block 211 limits the rotation of the central terminal 2 by the interference fit, and the step 173 and the limiting block 1723 of the insulating body 1 are restrained by the interference slot 1722 in the receiving cavity 17 . The central terminal 2 acts as a positive pole of the power source, and the elastic terminal 3 serves as a negative pole of the power source; the first shielding housing 41 is front-to-rear from the front to the rear. The direction is assembled on the front end face 11 of the insulative housing 1; the second shield case 42 is assembled on the top surface 14 and the two side faces 13 of the insulative housing 1 in a top-down direction. The center terminal 2 extends through the entire receiving cavity 17 and exposes the abutting portion 22 in the receiving space 16. The holding piece 33 and the soldering piece 34 of the elastic terminal 3 respectively penetrate through the corresponding receiving passage 18 and the groove 151, and the bending of the holding piece 33 The folded end is received in the corresponding opening 19.

In summary, this creation has met the requirements of the invention patent, and applied for a patent in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the foregoing embodiments, and any equivalent modification or change made by a person familiar with the skill of the present invention in accordance with the spirit of the present invention is It should be covered by the following patent application.

100‧‧‧Electrical connector

171‧‧‧ Containment section

1721‧‧‧ passage

1722‧‧‧Limited slot

173‧‧‧Ladder

18‧‧‧ Containment passage

Claims (9)

An electrical connector includes: an insulative housing having a receiving space extending rearward from the front end; and a receiving cavity extending from the rear end toward the front and communicating with the receiving space; the center terminal being received in the receiving cavity of the insulating body And extending into the accommodating space; the elastic terminal is received in the insulating body; wherein the receiving cavity is provided with a holding section, and the holding section comprises a limiting slot and a passing section adjacent to the rear end surface of the insulating body, wherein the central terminal is a retaining portion having a long side and a short side with a cross-sectional profile, a retaining portion formed at a short side of the retaining portion, the retaining portion of the center terminal passing through the passing portion, the rotating card being located at the limit In the slot, the receiving cavity further includes a receiving section having a diameter smaller than a diameter of the retaining section, and a step is formed therebetween. The electrical connector of claim 1, wherein the center terminal further comprises an abutting portion extending forward from the retaining portion and received in the receiving space, and a soldering extending rearward from the retaining portion and exposed outside the rear end surface of the insulating body unit. The electrical connector of claim 2, wherein the retaining section further comprises a limiting block protruding inwardly from the inner and outer walls of the passing section, and a guiding block extending inwardly from the inner wall of the passing section, respectively. The step and the limit block respectively stop the holding block of the center terminal to restrict the movement of the center terminal before and after. The electrical connector of claim 3, wherein the limiting slot is located between the limiting block and the guiding block and the step, and the interference between the limiting slot and the clamping block of the central terminal limits the central terminal Rotate. The electrical connector of claim 4, wherein the aforementioned holding block is rotated and moved between the limiting block and the step after passing through the passing section. The electrical connector of claim 1, wherein the insulative housing further includes a receiving passage and a recess that communicate with the receiving space and are located at a periphery of the receiving cavity, and the receiving passage and the recess are respectively parallel to the receiving cavity. The rear end surface of the insulating body is provided with openings respectively communicating with the receiving passages. The electrical connector of claim 6, wherein the elastic terminal comprises an annular body portion and an elastic finger received in the receiving cavity, and a plurality of retaining pieces and a soldering piece extending rearward from the body portion, The holding piece penetrates the receiving passage and the end thereof is bent and received in the opening. The electrical connector of claim 1, wherein the electrical connector further comprises a shielding housing, the shielding housing comprising a first shielding housing and a second shielding housing electrically connected to each other, The two sides of the insulating body are respectively provided with a first recess and a second recess. The first connector housing includes a resilient piece electrically connected to the elastic terminal, and a first elastic piece received in the first recess and engaged with the insulating body, A second elastic piece is received on the side wall of the second shielding shell and is received by the second recess to be engaged with the insulating body.