CN107645084A

CN107645084A - Electric connector

Info

Publication number: CN107645084A
Application number: CN201710641537.XA
Authority: CN
Inventors: 游万益; 洪永炽; 梁丽丽; 张勇刚; 郑峰
Original assignee: Alltop Electronics Suzhou Co Ltd; Alltop Technology Co Ltd
Current assignee: Alltop Electronics Suzhou Co Ltd; Alltop Technology Co Ltd
Priority date: 2017-07-31
Filing date: 2017-07-31
Publication date: 2018-01-30
Anticipated expiration: 2037-07-31
Also published as: CN107645084B; CN111525323A

Abstract

The invention provides a kind of electric connector, to be installed on circuit board, it includes insulating body and conducting terminal, insulating body has main part and docking section, docking section has roof, bottom wall and the docking space being formed between roof and bottom wall, bottom wall is formed with spaced Part I, Part II and projection, each conducting terminal has fixed part, contact arm and leg, conducting terminal includes the first terminal, Second terminal, third terminal and forth terminal, the contact arm of the first terminal is arranged side by side in roof, the contact arm of Second terminal and third terminal is in be respectively arranged at Part I and Part II side by side, the contact arm of forth terminal is arranged side by side in projection, the fixed part of forth terminal is more than the fixed part and the distance of leg in the height direction of Second terminal with the distance of leg in the height direction.Electric connector of the present invention effectively increases the coplane degree of the conducting terminal leg on bottom wall.

Description

Electric connector

Technical field

The present invention relates to a kind of electric connector, more particularly to a kind of preferable electric connector of coplane degree.

Background technology

Show etc. that the interface specification of electronic product is various for data transfer, data storage or image, generally should from early days ATA（AdvancedTechnology Attachment）To SCSI（Small Computer System Interface, Small computer system interface）、SATA（Serial Advanced Technology Attachment）With early SAS Interface（Serial SCSI, Serial Attached SCSI）.For many emerging applications for needing high speed data transfer, serially Technology can solve the problems, such as the performance bottleneck that Traditional parallel technology is faced, serial attached formula SCSI（SAS）It is parallel SCSI bases In the development of serial technology, in addition to having higher signal transmission rate advantage, SAS interfaces also can be simultaneous with SATA drive Hold, volume is also much smaller compared with SCSI.

When SATA interface is running into the bottleneck of transmission rate in differentiation, by using PCIe as breach, thus produce SATA Express interfaces are given birth to（SATA+PCIe）；When the development of SAS interfaces meets the bottleneck of transmission rate, also use PCIe is broken through, and then generates U.2 (SFF-8639), and it is the combination of SAS interfaces and PCIe interface, due to SAS interfaces Inherently can compatible SATA, therefore SFF-8639 interfaces can compatible SATA, SAS, SATA Express, PCIe equal-specification connection Device.SFF-8639 connectors mainly support high speed serialization signal and power supply, typically using enhanced design, can be deposited in compact Higher reliability is realized in storage application, but SFF-8639 connector overall volumes are smaller, number of terminals is more, therefore terminal Leg coplane degree be difficult to ensure that.

In view of this, it is necessary to existing electric connector is improved, to solve the above problems.

The content of the invention

It is an object of the invention to provide a kind of preferable electric connector of coplane degree.

For achieving the above object, the invention provides a kind of electric connector, to be installed on circuit board, it includes Insulating body, some conducting terminals being fixed on insulating body, the insulating body have main part and main body forward The docking section of extension, the docking section have roof, bottom wall and the docking space being formed between roof and bottom wall, the bottom wall Formed with spaced Part I, Part II and between Part I and Part II and towards away from docking sky Between direction projection projection, each conducting terminal have one be fixed on the fixed part of main part, self-fixed department front end is prolonged forward The contact arm stretched, positioned at leg of its rear end to be connected with circuit board, the conducting terminal include some the first terminals, Ruo Gan Two-terminal, some third terminals and some forth terminals, the contact arm of the first terminal are arranged side by side on roof and dashing forward Stretch into docking space, the contact arm of the Second terminal and third terminal is in the Part I and for being respectively arranged at bottom wall side by side On two parts, the contact arm of forth terminal is arranged side by side on the projection of bottom wall, the fixed part and leg of the forth terminal Distance in the height direction is more than the fixed part and the distance of leg in the height direction of Second terminal.

As a further improvement on the present invention, distance of the fixed part of the forth terminal with leg in the height direction is big In the fixed part and the distance of leg in the height direction of third terminal.

As a further improvement on the present invention, the fixed part of the Second terminal exists certain in the height direction with leg Certain distance in the height direction be present in distance, fixed part and the leg of third terminal.

As a further improvement on the present invention, distance of the fixed part of the Second terminal with leg in the height direction is The height of at least one Second terminal fixed part.

As a further improvement on the present invention, the electric connector also has the fixation for being molded in some the first terminals Collets outside portion, the collets have the location division for coordinating positioning with the main part of the insulating body.

As a further improvement on the present invention, the conducting terminal also has between the fixed part and leg and incited somebody to action Both connected extensions, the extension of the first terminal are to be downwardly extending from its fixed part.

As a further improvement on the present invention, the extension of the conducting terminal on the bottom wall arches upward upwards sets Put, to protrude into upwards on the collets in the corresponding accepting groove set.

As a further improvement on the present invention, the main part has positioned at rear side and opens the installing space set backward And the assembly wall positioned at installing space both sides, the location division are from the locating lug to both sides projection, the assembly wall fovea superior Provided with the locating slot extended along the longitudinal direction.

As a further improvement on the present invention, the fixed part of the first terminal has the base that size is widened in transverse direction Body, the width of described matrix are more than the width of its contact site and/or leg.

As a further improvement on the present invention, the fixed part both sides of the first terminal have and aforementioned dielectric body interference The protuberance of positioning, the protruding parts are in front of described matrix.

Electric connector of the present invention be arranged at the fixed part of the forth terminal on projection and leg in the height direction away from From the fixed part more than Second terminal and leg in the height direction with a distance from so that the conducting terminal energy on bottom wall Enough there is preferable coplane degree, with smooth on circuit board, integral solder quality is more good.

Brief description of the drawings

Fig. 1 is the three-dimensional assembly diagram that electric connector of the present invention is installed on circuit board.

Fig. 2 is the view at another visual angle of electric connector shown in Fig. 1.

Fig. 3 is the optical cable of electric connector shown in Fig. 1.

Fig. 4 is the view at another visual angle of electric connector shown in Fig. 3.

The part assembling figure of electric connector shown in Fig. 5 Fig. 3.

Fig. 6 is the stereogram of the first terminal of electric connector shown in Fig. 3.

Fig. 7 is the stereogram of the forth terminal of electric connector shown in Fig. 3.

Fig. 8 is the side view of the forth terminal of electric connector shown in Fig. 7.

Fig. 9 is the side view of the Second terminal of electric connector shown in Fig. 3.

Figure 10 is the echelon sectional view along Fig. 1 center lines A-A.

Embodiment

In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings with specific embodiment pair The present invention is described in detail.

It please join Fig. 1 to Figure 10 and show electric connector 100 of the present invention, to be soldered on a circuit board 5, and including insulation Body 1 and some conducting terminals 2 being attached in the insulating body 1, the electric connector 100 is by being inserted in its insulation originally The fixture 4 of the both sides of body 1 is located and is locked on circuit board 5.

Wherein, refer to shown in Fig. 1 to Fig. 5 and Figure 10, the insulating body 1 is in lengthwise open, and it has the He of main part 11 From the docking section 12 that the main part 11 extends forward, the docking section 12 has roof 101, bottom wall 102 and is formed at roof Docking space 103 between 101 and bottom wall 102, the bottom wall 102 is formed with spaced Part I 121, Part II 122 and between Part I 121 and Part II 122 and towards away from docking the direction projection of space 103 projection 123。

The main part 11 has mounting surface 110, positioned at the rear side of the mounting surface 110 and backward open installing space set 112 and a pair of assembly walls 113 positioned at the both sides of installing space 112, the inner side of each assembly wall 113, which faces out, is arranged with edge The locating slot 1131 of fore-and-aft direction extension.The mounting surface 110 and a pair of assembly walls 113 enclose and set to form the installation jointly Space 112.The mounting surface 110 of the main part 11, which is recessed forward, forms a slit 115, and the slit 115 is in lengthwise shape and edge Horizontal direction extends to opposite side assembly wall 113 from side assembly wall 113, and the locating slot 1131 is connected with the slit 115 It is logical.

Some conducting terminals 2 are fixed on the insulating body 1, and each conducting terminal 2 is fixed on described with one The fixed part 21 of main part 11, the front end of self-fixed department 21 extend forwardly into the contact arm 22 of the docking section 12, positioned at its rear end With the leg 24 being connected with circuit board.The conducting terminal 2 also has between the fixed part 21 and leg 24 and by two The extension 23 that person is connected.

If the conducting terminal 2 include some the first terminals 201, some Second terminals 202, some third terminals 203 and Dry forth terminal 204, the extension 23 of the first terminal 201 are to be downwardly extending from its fixed part 21；Positioned at the bottom The conducting terminal 2 on wall 102（At least second, third, one group in forth terminal 202,203,204）Extension 23 Upward setting of arching upward, to protrude into upwards on the collets 3 in the corresponding accepting groove 33 set.In the present embodiment, it is located at The either flush of the extension 23 of conducting terminal 2 on the bottom wall 102.

The contact arm 22 of the first terminal 201 be arranged side by side on roof 101 and protrude into downwards docking space 103, the contact arm 22 of the Second terminal 202 and third terminal 203 is in the Part I for being respectively arranged at bottom wall 102 side by side 121 and Part II 122 on, the contact arm 22 of forth terminal 204 is arranged side by side on the projection 123 of bottom wall.Described second The contact arm 22 of terminal 202, third terminal 203 and forth terminal 204 protrudes into docking space 103 upwards, and and first end Short transverse of the contact arm 22 of son 201 along insulating body 1 is relatively arranged on the both sides in docking space 103.The Second terminal 202 are located at sustained height with the contact arm 22 of third terminal 203, and the contact arm 22 of the first terminal 201 is in the height direction Above the contact arm 22 of Second terminal 202, the contact arm 22 of the forth terminal 204 is located at the second end in the height direction The lower section of contact arm 22 of son 202.

It is described second, third, the leg 24 of forth terminal 202,203,204 concordantly sets and lines up one in transverse direction Row, and positioned at the front of leg 24 of the first terminal 201.In the present embodiment, the extension 23 of the forth terminal 204 And leg 24 is to tear to be formed from the rear end of its fixed part 21, and the fixed part 21 is corresponding more than it in the width on horizontal direction Extension 23 and/or leg 24 width.

It please join shown in Fig. 6, the fixed part 21 of the first terminal 201 has the matrix 211 that size is widened in transverse direction, The width of described matrix 211 is more than the width of its contact site 22 and/or leg 24.Meanwhile the fixed part of the first terminal 201 21 both sides have the protuberance 212 for interfering positioning positioned at the front of mounting surface 110 and with aforementioned dielectric body 1, the protuberance 212 Positioned at the front of described matrix 211.

It refer to shown in Fig. 8, Fig. 9, in short transverse, the leg 24 of the forth terminal 204 is located at its fixed part 21 Upside, specifically, the fixed part 21 of the forth terminal 204 and the distance of leg 24 in the height direction are L1, the second end The fixed part 21 of son 202 is L2 with the distance of leg 24 in the height direction, and fixed part 21 and the leg 24 of third terminal 203 exist Distance in short transverse is L3, and wherein L1 is more than L2, and L1 is more than L3.

Distance L2 of the fixed part 21 of the Second terminal 202 with leg 24 in the height direction is not zero, namely described The fixed part 21 of Second terminal 202 must have a certain distance in the height direction with leg 24, and distance L2 is at least one The height of the fixed part 21 of individual Second terminal 202.It is similar with Second terminal 202, fixed part 21 and the leg 24 of third terminal 203 Certain distance is certainly existed in the height direction, namely L3 is not zero.

Electric connector 100 of the present invention also has the collets being molded in outside the fixed part 21 of some the first terminals 201 3, the collets 3 have the location division 31 for coordinating positioning with the main part 11 of the insulating body 1, in the present embodiment, institute The locating lug for the two laterally outside projections that location division 31 is self-insulating piece 3 is stated, the locating lug extends and preceding along the longitudinal direction End is with the guidance part 311 fined away, with the insertion using location division 31 into insulating body 1.The location division 31 is from back to front It is interior and matched to insert the corresponding locating slot 1131 that the rear side of main part 11 is set, setting inserts on front side of the collets 3 Enter portion 32 to stretch into the slit 115 of the insulating body 1, the blocking surface 30 positioned at the rear side of insertion section 32 is connected to forward institute State the mounting surface 110 of insulating body 1.

The bottom of the collets 3 is provided with some accepting grooves 33 for being recessed upwards and arranging in transverse direction, described Some guiding projections 34 that accepting groove 33 is set by the bottom of collets 3, which are spaced, to be formed, the conduction on the bottom wall 102 The extension 23 of terminal 2 corresponds with accepting groove 33, and spacing by the guiding projection 34 of both sides, to ensure to be located at bottom wall The position degree and normotopia degree of conducting terminal 2 on 102, when collets 3 are assembled into insulating body 1, the guiding that front end is fined away is convex Block 34 can conveniently correspond to the insertion of extension 23.

Electric connector 100 of the present invention is depositing plate type, and it passes through the insulation that is molded in outside some the first terminals 201 Block 3, the coplane degree of the numerous leg of the first terminal 201 of numbers of terminals is effectively ensured, and the leg 24 of the conducting terminal 2 is located at Sustained height with it is smooth, be welded on the circuit board 5, the insertion of conducting terminal 2 and assembling positioning are relatively simple.

The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair It is bright to be described in detail, it will be understood by those within the art that, technical scheme can be modified Or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention.

Claims

1. a kind of electric connector, to be installed on circuit board, it includes insulating body, some leading of being fixed on insulating body Electric terminal, the insulating body have the docking section that main part and main body extend forward, and the docking section has roof, bottom Wall and the docking space being formed between roof and bottom wall, the bottom wall is formed with spaced Part I, Part II And have between Part I and Part II and towards the projection away from docking direction in space projection, each conducting terminal Have one be fixed on the fixed part of main part, the contact arm that self-fixed department front end extends forward, positioned at its rear end with circuit board phase Leg even, the conducting terminal include some the first terminals, some Second terminals, some third terminals and some 4th ends Son, the contact arm of the first terminal are arranged side by side on roof and protruding into docking space, the Second terminal and the 3rd In being respectively arranged at side by side on the Part I and Part II of bottom wall, the contact arm of forth terminal is set the contact arm of terminal side by side It is placed on the projection of bottom wall, it is characterised in that：Distance of the fixed part of the forth terminal with leg in the height direction is big In the fixed part and the distance of leg in the height direction of Second terminal.

2. electric connector as claimed in claim 1, it is characterised in that：The fixed part of the forth terminal is with leg in height side Upward distance is more than the fixed part and the distance of leg in the height direction of third terminal.

3. electric connector as claimed in claim 2, it is characterised in that：The fixed part of the Second terminal is with leg in height side Certain distance upwards be present, fixed part and the leg of third terminal have certain distance in the height direction.

4. electric connector as claimed in claim 3, it is characterised in that：The fixed part of the Second terminal is with leg in height side Upward distance is the height of at least one Second terminal fixed part.

5. electric connector as claimed in claim 1, it is characterised in that：The electric connector, which also has, is molded in some the Collets outside the fixed part of one terminal, the collets have the positioning for coordinating positioning with the main part of the insulating body Portion.

6. electric connector as claimed in claim 5, it is characterised in that：The conducting terminal also have positioned at the fixed part with The extension being connected between leg and by both, the extension of the first terminal are to be downwardly extending from its fixed part.

7. electric connector as claimed in claim 6, it is characterised in that：The extension of the conducting terminal on the bottom wall Portion arches upward setting upwards, to protrude into upwards on the collets in the corresponding accepting groove set.

8. electric connector as claimed in claim 5, it is characterised in that：The main part, which has positioned at rear side and opened backward, to be set The installing space and the assembly wall positioned at installing space both sides put, the location division are from the locating lug to both sides projection, institute State assembly wall and be concavely provided with the locating slot extended along the longitudinal direction.

9. electric connector as claimed in claim 1, it is characterised in that：The fixed part of the first terminal has in transverse direction The matrix that size is widened, the width of described matrix are more than the width of its contact site and/or leg.

10. electric connector as claimed in claim 9, it is characterised in that：The fixed part both sides of the first terminal have with it is preceding The protuberance of insulating body interference positioning is stated, the protruding parts are in front of described matrix.