阅读说明：本技术 一种高速子母板连接器 (High-speed primary-secondary board connector ) 是由 尚兴荣 曹永泉 于 2021-07-05 设计创作，主要内容包括：本发明公开了一种高速子母板连接器,包括插头连接器和插座连接器所述插头连接器包括插头外壳,所述插头外壳的中间部插接插头基座,所述插头基座内可拆卸地设有若干接触插件；所述接触插件包括塑胶基座,所述塑胶基座内设有至少四个90°弯折的插头接触件。本发明提出的一种高速子母板连接器,可根据实际需要调整接触件的个数和大小,适用于不同的尺寸的器件,同时可保证高速传输性能。(The invention discloses a high-speed primary-secondary board connector, which comprises a plug connector and a socket connector, wherein the plug connector comprises a plug shell, the middle part of the plug shell is inserted into a plug base, and a plurality of contact plug-in units are detachably arranged in the plug base; the contact plug-in unit comprises a plastic base, and at least four 90-degree bent plug contact elements are arranged in the plastic base. The high-speed mother-son board connector provided by the invention can adjust the number and size of the contact elements according to actual needs, is suitable for devices with different sizes, and can ensure high-speed transmission performance.)

1. A high-speed primary-secondary board connector comprises a plug connector (1) and a socket connector (2), wherein the plug connector (1) comprises a plug outer shell (11), the middle part of the plug outer shell (11) is inserted into a plug base (12), and the high-speed primary-secondary board connector is characterized in that a plurality of contact plug-in units (13) are detachably arranged in the plug base (12); the contact plug-in (13) comprises a plastic base (132), and at least four 90-degree bent plug contact pieces (131) are arranged in the plastic base (132).

2. A high-speed daughter-board connector according to claim 1, wherein the plug contact (131) comprises a first contact arm (1311) and a second contact arm (1312) which are vertically arranged, one end of the first contact arm (1311) far away from the second contact arm (1312) is provided with a pair of clamping arms (1313), and the top end parts of the two clamping arms (1313) are vertically provided with a flip plate (1314); one end of the second contact arm (1312), which is far away from the first contact arm (1311), is provided with a fisheye terminal A (1316).

3. The high-speed daughter board connector according to claim 2, wherein at least four plug contacts (131) in the plastic base (132) are arranged in parallel at equal intervals, and the lengths of the first contact arm (1311) and the second contact arm (1312) are decreased sequentially so as to realize that the clamping arms (1313) of the at least four plug contacts (131) are located on the same straight line and the fisheye terminals a (1316) are located on the same straight line.

4. A high-speed mother-daughter board connector according to claim 3, wherein the middle portion of the plug housing (11) is provided with a through mounting hole a (111), the upper surface of the plug base (12) is provided with an insertion portion (121), the mounting hole a (111) is matched with the insertion portion (121), and the insertion portion (121) is provided with a plurality of through contact insertion holes a (122).

5. A high-speed mother-daughter board connector according to claim 4, wherein one side of the lower surface of the plug base (12) is vertically provided with a front supporting wall (123) and the other side is vertically provided with a rear supporting wall (125), the front supporting wall (123) is provided with a plurality of upper clamping grooves (124), and the rear supporting wall (125) is provided with a plurality of side wall grooves (126); the bottom of the plug shell (11) is in threaded connection with a cover plate (14), the upper surface of the cover plate (14) is provided with a plurality of lower clamping grooves (141), and the positions of the upper clamping groove (124), the side wall groove (126) and the lower clamping grooves (141) are matched.

6. A high-speed mother-daughter board connector according to claim 5, wherein a side wall clamping table (1321) is provided on a side wall of the plastic base (132) opposite to the fisheye terminal A (1316), a bottom clamping table (1322) is provided on a side wall of the plastic base (132) opposite to the clamping arm (1313), the side wall clamping table (1321) is matched with the side wall groove (126), and the bottom clamping table (1322) is matched with the lower clamping groove (141).

7. A high-speed mother-daughter board connector according to claim 2, wherein the receptacle connector (2) comprises a receptacle housing (21), a through mounting hole B (212) is formed in the middle of the receptacle housing (21), a receptacle base (22) is inserted into the mounting hole B (212), a plurality of through contact insertion holes B (221) are formed in the receptacle base (22), receptacle contacts (23) are arranged in the contact insertion holes B (221), and the number of the receptacle contacts (23) matches the number of the plug contacts (131).

8. A high-speed daughter-board connector according to claim 7, characterized in that the socket contact (23) is provided with a fisheye terminal B (231) at one end and a contact terminal (232) at the other end, the contact terminal (232) being connected with a pair of the clamping arms (1313) in a pluggable manner.

9. A high-speed mother-daughter board connector according to claim 8, wherein the upper surfaces of both ends of the plug housing (11) are provided with guide sleeves (15), both ends of the socket housing are provided with through positioning holes (211), guide posts (24) are arranged in the positioning holes (211), and the guide sleeves (15) are matched with the guide posts (24).

10. A high-speed daughter-board connector according to any of claims 1-9, characterized in that the header contacts (131) are bent 90 ° in two dimensions.

Technical Field

The invention relates to the technical field of electric connectors, in particular to a high-speed primary-secondary board connector.

Background

With the rapid development of science and technology in China, the data transmission speed of a system is continuously improved, and the requirement on the transmission rate of a connector is higher and higher, so that the form of a contact element is changed, and particularly, the connection mode between the contact element and a printed board is changed from the original through hole welding to fisheye crimping and BGA (ball grid array) connection.

From transmission rate, the fish-eye crimping and BGA connection mode can produce less impedance discontinuity, promotes the transmission rate of connector, and consequently these two kinds of modes are chooseed for use by more and more connector designers, and BGA connects welding process comparatively complicacy, and inspection and repair are more difficult after the product welding, and printed circuit board welding reliability is lower.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a high-speed mother-son board connector which is characterized by modularization, high density, high transmission rate and simpler process flow.

A high-speed primary-secondary board connector comprises a plug connector and a socket connector, wherein the plug connector comprises a plug outer shell, the middle part of the plug outer shell is inserted into a plug base, and a plurality of contact plug-in units are detachably arranged in the plug base; the contact plug-in unit comprises a plastic base, and at least four 90-degree bent plug contact elements are arranged in the plastic base.

Preferably, the plug contact comprises a first contact arm and a second contact arm which are vertically arranged, one end of the first contact arm, which is far away from the second contact arm, is provided with a pair of clamping arms, and the top ends of the two clamping arms are vertically provided with turnover plates; and a fisheye terminal A is arranged at one end of the second contact arm, which is far away from the first contact arm.

Preferably, at least four plug contacts in the plastic base are arranged in parallel at equal intervals, and the lengths of the first contact arm and the second contact arm are sequentially decreased progressively so as to realize that the clamping arms of the at least four plug contacts are positioned on the same straight line and the fisheye terminals a are also positioned on the same straight line.

Preferably, a through mounting hole a is formed in the middle of the plug housing, an inserting portion is formed in the upper surface of the plug base, the mounting hole a is matched with the inserting portion, and a plurality of through contact piece insertion holes a are formed in the inserting portion.

Preferably, one side of the lower surface of the plug base is vertically provided with a front support wall, the other side of the lower surface of the plug base is vertically provided with a rear support wall, the front support wall is provided with a plurality of upper clamping grooves, and the rear support wall is provided with a plurality of side wall grooves; the bottom of the plug shell is in threaded connection with a cover plate, a plurality of lower clamping grooves are formed in the upper surface of the cover plate, and the upper clamping grooves, the side wall grooves and the lower clamping grooves are matched in position.

Preferably, the plastic base with be equipped with the lateral wall ka tai on the relative lateral wall of flake terminal A, the plastic base with a lateral wall that the centre gripping arm is relative is equipped with the bottom ka tai, the lateral wall ka tai with lateral wall recess phase-match, the bottom ka tai with draw-in groove phase-match down.

Preferably, the socket connector includes a socket housing, a through mounting hole B is formed in the middle of the socket housing, a socket base is inserted into the mounting hole B, a plurality of through contact insertion holes B are formed in the socket base, socket contacts are arranged in the contact insertion holes B, and the number of the socket contacts matches that of the plug contacts.

Preferably, one end of the socket contact element is provided with a fisheye terminal B, the other end of the socket contact element is provided with a contact terminal, and the contact terminal is connected with the pair of clamping arms in a pluggable mode.

Preferably, the upper surfaces of the two ends of the plug shell are respectively provided with a guide sleeve, the two ends of the socket shell are provided with a through positioning hole, a guide post is arranged in the positioning hole, and the guide sleeves are matched with the guide posts.

Preferably, the plug contact is bent at 90 ° in two dimensions.

The invention has the following beneficial effects:

the invention provides a high-speed primary-secondary board connector, which comprises a bent plug connector and a straight socket connector. After the plug connector and the socket connector are butted, a high-speed transmission channel is formed, and the high-speed transmission channel comprises a plurality of transmission paths which can be used for transmitting high-speed differential signals.

According to the plug connector, the plug contact in the plug connector is bent by 90 degrees in two dimensions, so that the injection molding stability is improved, the size of the plastic base is reduced, and the plug connector is more suitable for precision instruments; a turnover plate is formed on a clamping arm of the plug contact element and is used for butting with a contact element in the socket connector, and the line contact between the plug contact element and the socket contact element ensures the signal contact reliability; the plug connector and the socket connector are both reliably fixed and connected with the printed board through the tail end fish eye structure.

The high-speed mother-son board connector provided by the invention can adjust the number and size of the contact elements according to actual needs, is suitable for devices with different sizes, and can ensure high-speed transmission performance.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall schematic view of a high-speed daughter-mother board connector;

fig. 2 is an exploded view of the plug connector;

FIG. 3 is a first schematic structural diagram of a base;

FIG. 4 is a second schematic structural view of the base;

FIG. 5 is a schematic view of a contact insert;

FIG. 6 is a schematic view of a plug contact configuration;

FIG. 7 is a schematic view of a multiple plug contact assembly;

FIG. 8 is a schematic structural view of a cover plate;

fig. 9 is an exploded view of the receptacle connector;

FIG. 10 is a schematic structural view of a socket base;

FIG. 11 is a schematic view of the structure of a socket contact;

fig. 12 is a mating top view of a plug contact and a receptacle contact:

fig. 13 is a mating front view of a plug contact and a receptacle contact:

fig. 14 is a view showing the configuration of the unformed header contact.

In the figure: 1-plug connector, 11-plug shell, 111-mounting hole A, 12-plug base, 121-plug part, 122-contact jack A, 123-front supporting wall, 124-upper clamping groove, 125-rear supporting wall, 126-side wall groove, 13-contact plug, 131-plug contact, 1311-first contact arm, 1312-second contact arm, 1313-clamping arm, 1314-overturning plate, 1315-chamfer, 1316-fisheye terminal A, 132-plastic base, 1321-side wall clamping table, 1322-bottom clamping table, 14-cover plate, 141-lower clamping groove, 15-guide sleeve, 16-screw A, 17-positioning column, 18-screw B, 2-socket connector, 21-socket shell, 211-positioning hole, 212-mounting hole B, 22-socket base, 221-contact jack B, 23-socket contact, 231-fisheye terminal B, 232-contact terminal, 24-guide post, 25-nut.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.

Referring to fig. 1-4, a high-speed mother-daughter board connector comprises a plug connector 1 and a socket connector 2, wherein the plug connector 1 comprises a plug housing 11, a through mounting hole a111 is formed in the middle of the plug housing 11, a plug base 12 is inserted into the mounting hole a111, an insertion portion 121 is formed in the upper surface of the plug base 12, the mounting hole a111 is matched with the insertion portion 121, and a plurality of through contact piece insertion holes a122 are formed in the insertion portion 121;

a front supporting wall 123 is vertically arranged on one side of the lower surface of the plug base 12, a rear supporting wall 125 is vertically arranged on the other side of the lower surface of the plug base, a plurality of upper clamping grooves 124 are formed in the front supporting wall 123, and a plurality of side wall grooves 126 are formed in the rear supporting wall 125; the bottom of the plug housing 11 is in threaded connection with the cover plate 14, the upper surface of the cover plate 14 is provided with a plurality of lower clamping grooves 141, the positions of the upper clamping grooves 124, the side wall grooves 126 and the lower clamping grooves 141 are matched, and the groove bodies of each group of upper clamping grooves 124, side wall grooves 126 and lower clamping grooves 141 are located on the same plane. The contact plug-in 13 is snapped in each set of slots between the plug base 12 and the cover 14.

The contact insert 13 comprises a plastic base 132, and four 90 ° bent plug contacts 131 are arranged in the plastic base 132. The plug contact 131 comprises a first contact arm 1311 and a second contact arm 1312 which are vertically arranged, one end, away from the second contact arm 1312, of the first contact arm 1311 is provided with a pair of clamping arms 1313, and the top ends of the two clamping arms 1313 are punched to form a turnover plate 1314 turned by 90 degrees; chamfers 1315 are arranged on the opposite sides of the two turnover plates 1314 to play a role in guiding, a gap between the two turnover plates 1314 is used for butting with the socket contact 23 to realize elastic contact, and one end, away from the first contact arm 1311, of the second contact arm 1312 is provided with a fisheye terminal A1316, so that a mounting area with a PCB is formed.

The plastic base 132 and the plug contact 131 are injection molded to form a contact assembly, and in the molded contact insert 13, the first contact arm 1311 and the second contact arm 1312 are disposed inside the plastic base 132, and the clamping arm 1313 and the fisheye terminal a1316 extend to the outside of the plastic base 132. As can be seen from fig. 14, the unformed plug contact 131 is a planar L-shaped structure, and is bent in another spatial dimension by bending punch forming, so that the plug contact 131 is bent at 90 ° in two dimensions; this structure can shorten the entire length of the plug contact 131 so that the size of the plastic base 132 can be reduced; meanwhile, in the injection molding process, compared with one-dimensional 90-degree bending, the structure enables the position of the plug contact 131 to be more accurate.

The four plug contacts 131 in the plastic base 132 are arranged in parallel at equal intervals, and the lengths of the first contact arm 1311 and the second contact arm 1312 are decreased in sequence, so that the clamping arms 1313 of the four plug contacts 131 are located on the same straight line, and the fisheye terminal a1316 is also located on the same straight line.

A side wall clamping table 1321 is arranged on one side wall, opposite to the fisheye terminal A1316, of the plastic base 132, a bottom clamping table 1322 is arranged on one side wall, opposite to the clamping arm 1313, of the plastic base 132, the side wall clamping table 1321 is matched with the side wall groove 126, and the bottom clamping table 1322 is matched with the lower clamping groove 141.

During assembly, the pair of clamping arms 1313 on the contact plug 13 penetrate into the contact jack a122 of the plug base 12, the top of the plastic base 132 is clamped in the upper clamping groove 124, the side wall clamping table 1321 is clamped in the side wall groove 126, the bottom clamping table 1322 is clamped in the lower clamping groove 141, and the cover plate 14 is assembled on the plug housing through the screw B18.

The socket connector 2 comprises a socket shell 21, a through mounting hole B212 is arranged in the middle of the socket shell 21, a socket base 22 is inserted into the mounting hole B212 and fixed through epoxy glue, a plurality of through contact piece jacks B221 are arranged on the socket base 22, socket contact pieces 23 are assembled in the contact piece jacks B221 in an interference fit mode,

the number of the socket contacts 23 matches the number of the header contacts 131. The receptacle contact 23 has a fisheye terminal B231 at one end and a contact terminal 232 at the other end, and the contact terminal 232 is connected to the pair of holding arms 1313 in a removable manner. The fisheye terminal B231 forms a mounting area with the PCB board and the contact terminal 232 forms a mating area with the plug connector 1.

The upper surfaces of the two ends of the plug shell 11 are respectively provided with a guide sleeve 15, the two ends of the socket shell are provided with a through positioning hole 211, a guide post 24 is fixed in the positioning hole 211 through a nut 25, and the guide sleeves 15 are matched with the guide posts 24.

Fifty contact inserts 13 are fixed in plug base 12 at the same interval in this embodiment, contact insert 13 is fixed between plug housing 11 and cover plate 14, guide sleeve 15 is fixed in plug housing 11 by screw a16, and four positioning posts 17 are press-fitted into housing 1 to form a whole of bending plug 1. The positioning columns 17 are convenient for accurately positioning the high-speed connector bent plug connector 1 and a printed board, and the guide sleeves 15 are convenient for adjusting key positions when the high-speed connector bent plug connector 1 is used and can play a connector guiding role when being inserted into the butt-joint end socket connector 2.

The high-speed connectors with different specifications shown in one embodiment of the invention are connected with the printed board by adopting a fisheye crimping mode. As can be seen from fig. 12 and 13, the 90 ° bent plug connector 1 is plugged into the straight receptacle connector 2, the flip plate 1314 of the plug contact 131 is connected to the contact terminal 232 of the receptacle contact 23 to achieve elastic contact, and the length of the line contact can be increased by butting the flip plate 1314 and the contact terminal 232, so that the butting stability is achieved, and the stub effect in the butting area is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.