Summary of the invention
The object of the present invention is to provide terminal impedance low, the electric connector that high-frequency signal transmits can be ensured.
For achieving the above object, the invention provides a kind of electric connector, insulating body and conducting terminal, described insulating body has base portion, from the docking section that base portion extends forward, described docking section has the docking groove that lengthwise extends and the first wall and the second wall that are relatively arranged on the upper and lower both sides of docking groove, described second wall has the groove that is connected with docking groove and by the Part I of groove gap-forming and Part II, the second extension that described first wall has the first extension that through-thickness and groove be oppositely arranged and is oppositely arranged along the thickness direction of insulating body with Part I, base portion is provided with terminal fixing grooves, described conducting terminal, comprise the first group of terminal be individually fixed on Part I, Part II, the first extension and the second extension, second group of terminal, the 3rd group of terminal and the 4th group of terminal, each terminal has the fixed part being fixed on base portion, and one end, self-retaining portion extends to the contact site of docking section and the self-retaining portion other end and extends to leg on rear side of base portion, partially conductive terminal in described conducting terminal is also provided with the connecting portion connecting described fixed part and described leg, and the portion of described connecting portion is greater than the height of described leg at the thickness direction of insulating body at the width of the Width of insulating body.
As a further improvement on the present invention, the portion of described connecting portion is greater than 2.1 times of height of described leg at the thickness direction of insulating body at the width of the Width of insulating body.
As a further improvement on the present invention, described fixed part, described connecting portion, the stepped distribution of described leg.
As a further improvement on the present invention, described connecting portion comprises the first connecting portion of the first bending downwards more backward from described fixed part rear end, the second connecting portion extended back from the first connecting portion terminal horizontal, the 3rd connecting portion that bends from the second connecting portion end downwards; Described leg extends back from the 3rd connecting portion terminal horizontal.
As a further improvement on the present invention, described first connecting portion is less than described second connecting portion and the 3rd connecting portion width at the Width of insulating body at the width of the Width of described insulating body.
As a further improvement on the present invention, described second connecting portion and the 3rd connecting portion are greater than the width of described leg at the Width of insulating body at the width of the Width of insulating body.
As a further improvement on the present invention, described connecting portion comprises the first connecting portion of the first bending extension downwards more backward from described fixed part rear end, and described leg extends back from the first connecting portion terminal horizontal.
As a further improvement on the present invention, described first connecting portion is greater than the width of leg along the Width of described insulating body along the width of the Width of described insulating body, and described first connecting portion is greater than the height of leg along the thickness direction of described insulating body along the width of the Width of described insulating body.
As a further improvement on the present invention, the leg of the partially conductive terminal in described conducting terminal is positioned at same welding plane, and the leg of partially conductive terminal extends perpendicular to described welding plane in addition.
As a further improvement on the present invention, the leg level of whole described conducting terminal extends back.
The invention has the beneficial effects as follows: the partially conductive terminal of electric connector of the present invention comprises the connecting portion of fixed part, contact site, leg, the described fixed part of connection and described leg, the height of described leg at the thickness direction of insulating body is greater than at the width of the Width of insulating body by the portion of described connecting portion, make the impedance of conducting terminal less, improve high-frequency signal transmission.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, describe the present invention below in conjunction with the drawings and specific embodiments.
Please refer to the drawing 1 is to the first preferred embodiment that Figure 7 shows that electric connector 100 of the present invention, in the present embodiment, described electric connector 100 is specially the SATA connector of line end, and comprise insulating body 1, the some conducting terminals 2 be fixed in described insulating body 1.
Shown in please refer to the drawing 1 to Fig. 5, described insulating body 1 entirety in lengthwise open, and has base portion 11, from the docking section 12 that base portion 11 extends forward, on front side of base portion 11, two ends are respectively to two guide pillars 13 of front extension.Described guide pillar 13 is arranged at the both sides of described docking section 12 along longitudinally respectively, to guide the grafting of butt connector (not shown).In the present invention, longitudinally refers to the Width of insulating body.
Described docking section 12 has the docking groove 121 that lengthwise extends and the first wall 122 and the second wall 123 being relatively arranged on docking groove about 121 both sides.Described docking groove 121 forwards open is arranged, and in order to accommodate butt connector.Described second wall 123 has the groove 1231 that is connected with docking groove 121 and by the Part I 1232 of groove 1231 gap-forming and Part II 1233.In described groove 1231, conducting terminal be not set and run through the front end face of insulating body 1 along abutting direction.
The second extension 1222 that described first wall 122 has the first extension 1221 that thickness direction and groove 1231 along insulating body 1 be oppositely arranged and is oppositely arranged along the thickness direction of described insulating body 1 with Part I 1232.Described first extension 1221 and the second extension 1222 all have certain height on insulating body 1 thickness direction and Width, make the thickness of this part thick compared with other parts of the first wall 122.
Described insulating body 1 has some terminal fixing grooves 14 running through setting along the longitudinal direction, is provided with the location structure (non-icon) for the locating conductive terminal 2 when conducting terminal 2 inserts described terminal fixing grooves 14 in described terminal fixing grooves 14.Wherein, described Part I 1232 and the first extension 1221 are respectively arranged with seven described terminal fixing grooves 14, described Part II 1233 is provided with 15 described terminal fixing grooves 14, described second extension 1222 is provided with three described terminal fixing grooves 14.
In the present embodiment, the terminal fixing grooves 14 of described Part I 1232 and Part II 1233 is a row along longitudinally spread configuration, and near the first wall 122; The terminal fixing grooves 14 of described first extension 1221 and the second extension 1222 is a row along longitudinally spread configuration, and near described second wall 123.
Be formed with a resettlement section 110 in the middle of the rear side of described base portion 11, be positioned at the flank 111 that described resettlement section 110 is arranged along the left and right sides of longitudinally, the bonnet (not shown) fastened from rear side and described base portion 11.The part-structure of conducting terminal 2 stretches in described resettlement section 110 backward from described terminal fixing grooves 14, and described bonnet plays position limitation protection effect to conducting terminal 2.
Shown in please refer to the drawing 1 to Fig. 3, described conducting terminal 2 includes some to difference signal terminal, some earth terminals and some power supply terminals.In the present embodiment, described conducting terminal 2 is totally divided into four groups of settings, and it comprises and is individually fixed in first group of terminal, 20, the second group of terminal 21 on Part I 1232, Part II 1233, first extension 1221 and the second extension 1222, the 3rd group of terminal 22 and the 4th group of terminal 23.
Described difference signal terminal is distributed in first group of terminal 20 and the 3rd group of terminal 22.Wherein, in described first group of terminal 20 and the 3rd group of terminal 22, include seven conducting terminals 2 respectively, and respectively corresponding be fixed on insulating body 1 Part I 1232 and the first extension 1221 on terminal fixing grooves 14 in.Seven conducting terminals 2 in first group of terminal 20 meet the definition of signal terminal S1-S7 in SATA connector specifications, and it includes three earth terminals and is arranged at intervals at two pairs of difference signal terminal adjacently between terminal; Seven conducting terminals 2 in described 3rd group of terminal 22 meet the definition of signal terminal S8-S14 in SATA connector specifications, and it also includes three earth terminals and is arranged at intervals at two pairs of difference signal terminal adjacently between terminal.Described second group of terminal 21 includes 15 conducting terminals 2, respectively in the corresponding terminal fixing grooves 14 be fixed on the Part II 1233 of insulating body 1, and the conducting terminal 2 in this second group of terminal 21 meets the definition of terminal P1-P15 in SATA connector specifications, comprising having P7, P8, P9 and P13, P14, P15 six roots of sensation power supply terminal.The correspondence respectively that includes described 4th group of terminal 23 is fixed on three conducting terminals 2 in the terminal fixing grooves 14 on the second extension 1222, these three conducting terminals 2 meet the definition of terminal E7-E9 in SATA connector specifications, and it comprises a pair signal terminal and an inspection terminal.
Separately, the arrangement mode of described conducting terminal 2 in insulating body 1 is identical with the arragement direction in SATA connector specifications, namely the conducting terminal 2 in first group of terminal 20 and second group of terminal 21 is in a row to be arranged on the upside of docking groove 121, and the conducting terminal 2 in the 3rd group of terminal 22 and the 4th group of terminal 23 is in a row to be arranged on the downside of docking groove 121.
Each conducting terminal 2 has the fixed part 24 be fixed in the terminal fixing grooves 14 of base portion 11, and one end, self-retaining portion 24 extends to the contact site 25 of docking section 12 and self-retaining portion 24 other end and extends to leg 26 on rear side of base portion 11.Described fixed part 24 is provided with the retaining structure 241 matched with described location structure.Described contact site 25 protrudes in described docking groove 121, to be electrically connected with butt connector.Described leg 26 is positioned at the resettlement section 110 on rear side of base portion 11; Particularly, rear end, described leg 26 self-retaining portion 24 is downwards or backward bending to be extended, with welding circuit board.
Partially conductive terminal 2 in described conducting terminal 2 is that raw material adopts the preparation of blanking moulding process with sheet metal, and the fixed part 24 of this conducting terminal 2, contact site 25 and leg 26 are identical at the width of the Width of insulating body 1.Leg 26 is without the need to rear processing procedure bending, and technique is simple, and leg 26 intensity is better.
In the present embodiment, shown in please refer to the drawing 6, the 4th group of terminal 23 adopts blanking moulding process to prepare, and in the form of sheets, technique is simple.Shaping the 4th group of terminal 23 of blanking has the 4th fixed part 234, the 4th contact site 235, the 4th leg 236; Described 4th leg 236 bends without the need to rear processing procedure, and intensity is better.
Be different from the terminal of punch die bending and molding, the 4th fixed part 234 of described 4th group of terminal 23, the 4th contact site 235, the 4th leg 236 are identical along the width of longitudinally; And the 4th fixed part 234 thickness direction had along insulating body 1 is divided into described 4th fixed part 234 top, the corresponding location structure of the terminal fixing grooves 14 of a pair retaining structure 241, second extension 1222 of bottom is also divided into terminal fixing grooves 14 top, bottom.
Separately, described 4th fixed part 234 is greater than the width of the Width at insulating body 1 at the height of the thickness direction of insulating body 1, and the 4th fixed part 234 is greater than described 4th contact site 235, the 4th leg 236 at the height of the thickness direction of insulating body 1 at the height of the thickness direction of insulating body 1; Correspondingly, the terminal fixing grooves 14 on the second extension 1222 is greater than the width of the Width at insulating body 1 in the length of the thickness direction of insulating body 1.Therefore the 4th fixed part 234 is comparatively large with the contact area of base portion 11, can be fixed on better in base portion 11.
Described 4th group of terminal 23 also comprises the connecting portion 237 being bent downwardly extension from described 4th fixed part 234 rear end, and described 4th leg 236 to extend back formation from connecting portion 237 terminal horizontal, is connected with circuit board in surface soldered mode.
In addition, partially conductive terminal 2 in described conducting terminal 2 also comprises the connecting portion 27 connecting described fixed part 24 and described leg 26, the portion of described connecting portion 27 is greater than the height of described leg 26 at the thickness direction of insulating body 1 at the width of the Width of insulating body 1, make the impedance of this conducting terminal 2 less, the transmission of high-frequency signal is higher.Preferably, the portion of described connecting portion 27 is greater than 2.1 times of height of described leg 26 at the thickness direction of insulating body 1 at the width of the Width of insulating body 1.
In the present embodiment, shown in please refer to the drawing 7, first group of terminal 20 that bending and molding is cut in first blanking again has the first fixed part 204, first contact site 205, first leg 206, connects the connecting portion 207 of described first fixed part 204 and the first leg 206.Described first fixed part 204, connecting portion 207 and the stepped distribution of the first leg 206, particularly, described connecting portion 207 to comprise from described first fixed part 204 rear end first the first connecting portion 2071, the second connecting portion 2072 extended back from the first connecting portion 2071 terminal horizontal, the 3rd connecting portion 2073 that bends from the second connecting portion 2072 end that extend of bending downwards more backward downwards; Described first leg 206 extends back from the 3rd connecting portion 2073 terminal horizontal.
At the Width of described insulating body 1, the width of described first connecting portion 2071 is less than the width of described second connecting portion 2072 and the 3rd connecting portion 2073; And the width of described second connecting portion 2072 and the 3rd connecting portion 2073 is greater than the width of described first leg 206.
The portion of described connecting portion 207 is greater than the height of described first leg 206 at the thickness direction of insulating body at the width of the Width of insulating body; Preferably, the portion of described connecting portion 207 is greater than 2.1 times of height of described first leg 206 at the thickness direction of insulating body at the width of the Width of insulating body.In the present embodiment, described second connecting portion 2072 and the 3rd connecting portion 2073 are greater than 2.1 times of height of described first leg 206 at the thickness direction of insulating body at the width of the Width of insulating body, to reduce the impedance of first group of terminal 20, improve the transmission of high-frequency signal.
Please refer to the drawing 8 is to the second preferred embodiment that Figure 10 shows that electric connector 100 of the present invention, only be that the structure of the 4th group of terminal 23 is different from the difference of the first preferred embodiment, and do for the structure of the terminal fixing grooves 14 of fixing described 4th group of terminal 23 and correspondingly change; Other repeat no more in this.In the present embodiment, described 4th leg 236 is bent downwardly from described 4th fixed part 234 rear end and extends to form, to insert welding manner and welding circuit board.
Please refer to the drawing 11 is to the 3rd preferred embodiment that Figure 14 shows that electric connector 100 of the present invention, only be that the structure of first group of terminal 20 and the 3rd group of terminal 22 is different from the difference of the first preferred embodiment, and do for the structure of the terminal fixing grooves 14 of fixing described first group of terminal 20 and the 3rd group of terminal 22 and correspondingly change; Other repeat no more in this.
Shown in please refer to the drawing 13, first group of terminal 20 that bending and molding is cut in first blanking again has the first fixed part 204, first contact site 205, first leg 206, connects the connecting portion 207 of described first fixed part 204 and the first leg 206.Described connecting portion 207 comprises the first connecting portion 2071 of the first bending extension downwards more backward from described first fixed part 204 rear end, and described first leg 206 extends back from the first connecting portion 2071 terminal horizontal.
In the present embodiment, the first connecting portion 2071 is greater than the width of the first leg 206 along the Width of described insulating body 1 along the width of the Width of described insulating body 1; And the first connecting portion 2071 is greater than the height of the first leg 206 along the thickness direction of described insulating body 1 along the width of the Width of described insulating body 1.In preferred version, the first connecting portion 2071 is greater than 2.1 times of height of the first leg 206 along the thickness direction of described insulating body 1 along the width of the Width of described insulating body 1.
Shown in please refer to the drawing 14, the 3rd group of terminal 22 that bending and molding is cut in first blanking again has the 3rd fixed part 224, the 3rd contact site 225, the 3rd leg 226, connects the connecting portion 227 of described 3rd fixed part 224 and the 3rd leg 226.Described connecting portion 227 comprises the first connecting portion 2271 of the first bending extension downwards more backward from described 3rd fixed part 224 rear end, and described first leg 226 extends back from the first connecting portion 2271 terminal horizontal.
In the present embodiment, the first connecting portion 2271 is greater than the width of the 3rd leg 226 along the Width of described insulating body 1 along the width of the Width of described insulating body 1; And the first connecting portion 2271 is greater than the height of the 3rd leg 226 along the thickness direction of described insulating body 1 along the width of the Width of described insulating body 1.In preferred version, the first connecting portion 2271 is greater than 2.1 times of height of the 3rd leg 226 along the thickness direction of described insulating body 1 along the width of the Width of described insulating body 1.
Above-described embodiment, the leg 26 of the partially conductive terminal 2 in described conducting terminal 2 is positioned at same welding plane, be welded on circuit board in surface soldered mode, the leg 26 of partially conductive terminal 2 extends perpendicular to described welding plane in addition, is welded on circuit board to insert welding manner; Therefore circuit board is parallel to the first wall 122.
Please refer to the drawing 15 is to the 4th preferred embodiment that Figure 16 shows that electric connector 100 of the present invention, compared with above-described embodiment, described electric connector 100 also comprises grounding assembly 3, is electrically connected the circuit board 4 of some conducting terminals 2 and grounding assembly 3 and is held in the bonnet (not shown) on rear side of insulating body 1.
Described insulating body 1 also has for accommodating and fixing the accepting groove 15 of described grounding assembly 3, the fixture 16 towards circuit board 4 projection.In addition, the structure of holddown groove 14 makes adaptations according to the structural change of conducting terminal 2.
In the present embodiment, first group of terminal 20 is identical with the structure of second group of terminal 21, and rear end, connecting portion 27 self-retaining portion 24 bends extension downwards, and leg 26 extends back from connecting portion 27 terminal horizontal.Wherein, connecting portion 27 is greater than the width of leg 26 at the Width of insulating body 1 at the width of the Width of insulating body 1; Connecting portion 27 is greater than the height of leg 26 at insulating body 1 thickness direction at the width of the Width of insulating body 1, reduces impedance, improves the transmission of high-frequency signal.
And the 3rd group of terminal 22 is identical with the structure of the 4th group of terminal 23, rear end, leg 26 self-retaining portion 24 directly to after extend to form.
Be fixed on by conducting terminal 2 after in insulating body 1, the leg 26 of first group of terminal 20 and second group of terminal 21 is arranged in a row near the second wall 123; And the leg 26 of the 3rd group of terminal 22 and the 4th group of terminal 23 is arranged in a row near the first wall 122.
Described grounding assembly 3 has the derivation pin 32 of main part 31 and main body 31 extension being contained in accepting groove 15.From aforementioned, in the present embodiment, described difference signal terminal sets in a row respectively in first end subgroup 20 and the 3rd terminal group 22.The main part 31 of described grounding assembly 3 is in the sheet design extended along insulating body 1 longitudinally, and described main part 31 is not less than the arrangement total length of described difference signal terminal along the development length of insulating body 1 longitudinally, make described grounding assembly 3 interference signal around difference signal terminal can be got rid of in time by main part 31 thus, ensure the stable transfer of high-frequency signal.Described derivation pin 32 is arranged between the leg 26 of described first end subgroup 20 and the leg 26 of the second terminal group 21 along insulating body 1 longitudinally.
In this embodiment, leg 26 and described derivation pin 32 level of whole described conducting terminal 2 extend back, and are welded on circuit board 4 to insert welding manner; Described circuit board 4 is vertical with the first wall 122.
Described circuit board 4 is above-mentioned to be provided with for fixing leg 26 and the welding hole 41 of deriving pin 32, the fixing hole 42 that matches with fixture 16.Welding hole 41 wherein for welding earth terminal 2 is electrically connected with for welding the welding hole of deriving pin 32.
In sum, electric connector 100 partially conductive terminal 2 of the present invention comprises fixed part 24, contact site 25, leg 26, connects the connecting portion 27 of described fixed part 24 and described leg 26, the height of described leg 26 at the thickness direction of insulating body 1 is greater than at the width of the Width of insulating body 1 by the portion of described connecting portion 27, make the impedance of conducting terminal 2 less, improve high-frequency signal transmission.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not depart from the spirit and scope of technical solution of the present invention.