CN113904146A

CN113904146A - Socket

Info

Publication number: CN113904146A
Application number: CN202111108865.6A
Authority: CN
Inventors: 吉园园; 汤江龙; 刘苏行; 张志中
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-01-07

Abstract

The present invention relates to a socket. The socket is used for being plugged with the plugging printed board from bottom to top and comprises an insulator and a contact element, wherein the contact element is provided with a spring arm used for being elastically contacted with the plugging printed board. The contact pieces are arranged in a front-back mode to form at least two contact piece groups, and the at least two contact piece groups are used for clamping the plug-in printed board in a matched mode through the elastic arms which are elastically pressed and contacted with the left side of the plug-in printed board and the elastic arms which are elastically pressed and contacted with the right side of the plug-in printed board so as to achieve conductive connection of the socket and the plug-in printed board. At least one group of elastic arms in the contact element group of the socket are in elastic pressure contact with the left side of the plug-in printed board, and at least one group of elastic arms are in elastic pressure contact with the right side of the plug-in printed board, so that at least two groups of contact elements on the socket can be plugged in the same plug-in printed board, the using quantity of the plug-in printed boards can be reduced, the structure of the printed board connector assembly is simplified, and the problem that the structure of the existing printed board connector assembly is complex and not beneficial to miniaturization is solved.

Description

Socket

Technical Field

The present invention relates to a socket.

Background

As shown in fig. 1, the conventional printed board connector assembly includes a socket 100, a plugging printed board 200, and a connection printed board 300, where the socket 100 includes an insulator 400 and a row of contacts 500, one end of each contact 500 is provided with a fish-eye pin connected to the connection printed board 300, the other end of each contact 500 is plugged into the plugging printed board 200, and the connection printed board 200 is perpendicular to the plugging printed board 300. A row of contacts is usually connected to a plug-in printed circuit board to transmit high-frequency signals. The structure is more complicated, is unfavorable for miniaturization and integration.

Disclosure of Invention

The invention aims to provide a socket which is used for solving the problem that the structure of the conventional printed board connector assembly is complex and is not beneficial to miniaturization.

The socket adopts the following technical scheme:

the socket is used for with grafting printed board from bottom to top grafting, includes:

an insulator;

the contact element is provided with an elastic arm which is used for being in elastic contact with the plug-in printed board, the elastic arm is used for being arranged on the left and right of the plug-in printed board and comprises a grounding conductor and a signal conductor, the grounding conductor and the signal conductor are both arranged on the insulator, the elastic arm comprises a grounding elastic arm arranged on the grounding conductor and a signal elastic arm arranged on the signal conductor, the grounding elastic arm and the signal elastic arm are both used for being in elastic pressure contact with the plug-in printed board, and the signal elastic arm and the grounding elastic arm are arranged in the front and back;

the contact piece group is formed by at least two contact pieces arranged in front and back, at least two contact piece groups are arranged, the elastic arm of each contact piece in at least one contact piece group is used for being elastically pressed and contacted with the left side of the plug-in printed board, the elastic arm of each contact piece in at least one contact piece group is used for being elastically pressed and contacted with the right side of the plug-in printed board, the elastic arm used for being elastically pressed and contacted with the left side of the plug-in printed board is matched with the elastic arm used for being elastically pressed and contacted with the right side of the plug-in printed board to clamp the plug-in printed board, and therefore the socket is electrically connected with the plug-in printed board.

Has the advantages that: at least one group of elastic arms in the contact element group of the socket are in elastic pressure contact with the left side of the plug-in printed board, and at least one group of elastic arms are in elastic pressure contact with the right side of the plug-in printed board, so that at least two groups of contact elements on the socket can be plugged in the same plug-in printed board, the using quantity of the plug-in printed boards can be reduced, the structure of the printed board connector assembly is simplified, and the problem that the structure of the existing printed board connector assembly is complex and not beneficial to miniaturization is solved.

Furthermore, at least two contact groups form a same-side contact assembly, and elastic arms of the contacts in the same-side contact assembly are elastically pressed and contacted with the same side of the plug-in printed board. The homonymy contact piece set includes two at least contact piece groups, and the contact piece integrates the degree higher, and the utilization ratio of grafting printed board is higher.

Further, at least two contact groups in the same-side contact assembly are arranged left and right, each elastic arm of one contact group forms one elastic arm group, and the elastic arm groups of the same-side contact assembly meet the following conditions: one of the two adjacent left and right elastic arm groups is an outer elastic arm group, the other one is an inner elastic arm group, the inner elastic arm group is located between the outer elastic arm group and the plug-in printed board, the part of the outer elastic arm group, which is used for being elastically pressed and contacted with the plug-in printed board, is an outer elastic arm contact part, the part of the inner elastic arm group, which is used for being elastically pressed and contacted with the plug-in printed board, is an inner elastic arm contact part, and the outer elastic arm contact part is located on the upper side of the inner elastic arm contact part. The elastic arm groups in the contact member set on the same side are arranged inside and outside, so that the structure is more compact.

Furthermore, the number of the contact groups is even, the elastic arms of half of the contact groups are used for being elastically pressed and contacted with the left side of the plug-in printed board, and the elastic arms of half of the contact groups are used for being elastically pressed and contacted with the right side of the plug-in printed board. The stress of the plug-in printed board is balanced.

Further, a signal elastic arm is arranged between adjacent grounding elastic arms in the same contact group. And the grounding elastic arm is utilized to shield the signal elastic arm, so that the anti-interference capability is improved.

Further, the contact pieces in the two contact piece groups adjacent to each other are arranged in a staggered manner from front to back: the projections of the contact center lines in one of the contact groups and the contact center lines in the other contact group in a plane perpendicular to the left-right direction are spaced back and forth. The contact arrangement is more compact.

Further, the ground conductor is including fixing the ground mounting portion in the insulator, and the ground mounting portion is half surrounding structure, the signal conductor is including fixing the signal mounting portion in the insulator, and the signal mounting portion is in the ground mounting portion. The semi-surrounding structure of the grounding installation part has better shielding effect on the signal conductor.

Further, the ground mounting portion and the signal mounting portion are interference fitted on the insulator. The assembly mode is simple.

Furthermore, barbs which are tightly matched with the insulator are arranged on the grounding installation part and the signal installation part. The barb can prevent that the conductor from droing, and the fixed effect of conductor is better.

Further, the insulator comprises a base body and an elastic arm limiting body for limiting the elastic arm, an elastic arm limiting groove for the elastic arm to be installed is formed in the elastic arm limiting body, and the front groove wall and the rear groove wall of the elastic arm limiting groove are used for being matched with the elastic arm stop. Prevent the elastic arms from touching each other by mistake.

Furthermore, the elastic arm limiting body is detachably and fixedly connected with the base body. The installation is convenient.

Further, the insulator comprises a base body and an insulating support body, an insulator hole is formed in the base body, the insulating support body is arranged in the insulator hole, the grounding conductor is inserted into the insulator hole in an interference mode, the signal conductor is inserted into the insulating support body in an interference mode, and the insulating support body and the base body are integrally formed. The structure of the insulator is simplified, and the assembly efficiency is improved.

Furthermore, contact one end is printing board grafting end, and the other end is printing board link, and the bullet arm is in printing board grafting end, and printing board link is provided with the fisheye structure, and printing board link is through fisheye structure and the electrically conductive connection of being connected the printing board.

Drawings

Fig. 1 is a schematic diagram of a prior art printed board connector assembly;

fig. 2 is a schematic diagram of a printed board connector assembly according to embodiment 1 of the receptacle of the present invention;

fig. 3 is a schematic structural view of a socket and a socket that are inserted into a printed board according to embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a contact and a plug-in printed board in embodiment 1 of the socket of the present invention;

fig. 5 is a schematic structural diagram of a contact element with an elastic arm in an outer elastic arm group in the socket embodiment 1 of the invention;

FIG. 6 is a schematic structural diagram of a contact element with an inner elastic arm set in an elastic arm according to embodiment 1 of the socket of the present invention;

FIG. 7 is a schematic view showing the relative positional relationship of the contacts shown in FIGS. 5 and 6;

FIG. 8 is a schematic view of the structure of an insulator and a portion of a contact in the socket of embodiment 1 of the present invention;

fig. 9 is a schematic diagram showing a state before the plug and the contact are inserted into each other in the socket embodiment 1 of the present invention;

fig. 10 is a schematic view of the socket according to embodiment 1 of the present invention after the plug and the contact are inserted into each other;

FIG. 11 is a layout view of contacts in the socket embodiment 1 of the present invention;

fig. 12 is an assembly view of the elastic arm stopper and the elastic arm in the socket according to embodiment 1 of the present invention;

FIG. 13 is another assembly view of the resilient arm stopper and the resilient arm according to embodiment 1 of the socket of the present invention;

FIG. 14 is a schematic view of a partial structure of an elastic arm stopper according to embodiment 1 of the present invention

Fig. 15 is a schematic view of the installation of ground conductors and signal conductors in embodiment 1 of the jack of the present invention;

fig. 16 is a schematic structural view of a socket according to embodiment 2 of the present invention;

in fig. 1: 100. a socket; 200. inserting a printed board; 300. connecting the printed board; 400. an insulator; 500. a contact member;

in fig. 2 to 16: 1. inserting a printed board; 11. a first resilient arm engaging portion; 12. a second spring arm engaging portion; 2. a plug; 21. a plug insulator; 22. a plug inner conductor; 23. a plug outer conductor; 24. a guide block; 3. a socket; 31. an insulator; 311. a substrate; 312. an insulating support; 313. an insulator bore; 3131. a grounding stop step; 314. mounting holes; 3141. a signal stopping step; 315. a bolt; 316. a spring arm limiting body; 317. a spring arm limiting groove; 3171. an outer spring arm limiting groove; 3172. an inner spring arm limiting groove; 32. a guide hole; 33. a contact member; 331. a ground conductor; 3311. a ground mounting portion; 3312. a grounding elastic arm; 3313. a grounding installation groove; 3314. a grounding elastic contact pin; 332. a signal conductor; 3321. a signal mounting section; 3322. a signal elastic arm; 3323. a signal mounting groove; 3324. a signal elastic contact pin; 333. a barb; 334. a contact projection; 34. a contact group; 35. the same-side contact element set; 36. an outer bouncing arm group; 37. an inner side elastic arm group; 4. a wire; 335. a fish eye structure; 5. and connecting the printed board.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The terms upper, lower, left, right, front, rear, and the like are positional relationships assumed for the convenience of describing the present invention, and do not indicate or imply that the respective parts referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the respective parts.

The features and properties of the present invention are described in further detail below with reference to examples.

Embodiment 1 of the socket of the present invention:

as shown in fig. 2, the socket 3 in the present embodiment, which is an adapter, can connect the header 2 with the socket printed board 1. The socket 3 is inserted into the insertion printed board 1 from bottom to top. In this embodiment, the plug 2 and the socket 3 are inserted into each other instead of connecting the printed board and the socket 3. One end of the plug 2 is a plug end which is plugged with the socket 3, and the other end is used for connecting a wire 4. As shown in fig. 9 and 10, the plug 2 includes a plug insulator 21, a plug inner conductor 22 for transmitting a signal, and a plug outer conductor 23 for grounding, the plug inner conductor 22 being fixed to the plug insulator 21, and the plug outer conductor 23 forming an outer shell of the plug 2, surrounding the plug insulator 21. In the present embodiment, the plug inner conductor 22 and the plug outer conductor 23 form the contacts of the plug 2, and the contacts of the plug 2 and the socket 3 are both high-frequency contacts.

The plug inner conductor 22 is disposed within the plug outer conductor 23 and is spaced coaxially inside and outside thereof. In this embodiment, the plug inner conductor 22 is a pin, and the plug outer conductor 23 has a conductor sleeve in which the pin is located. The plug inner conductor 22 being within the plug outer conductor 23 can reduce external interference with the plug inner conductor 22. Through the grafting cooperation of plug 2 and socket 3 in this embodiment, the life-span of plug repeatedly between plug 2 and the socket 3 is higher, and signal transmission effect is better.

In order to facilitate the insertion of the plug 2 and the socket 3, the plug 2 is provided with a guide block 24, the corresponding insulator 31 of the socket 3 is provided with a guide hole 32, and the guide block 24 and the guide hole 32 are in up-and-down guiding sliding fit in the process of inserting the plug 2 and the socket 3.

As shown in fig. 2 and 3, the socket 3 includes an insulator 31 and a contact 33, and the contact 33 is fixed to the insulator 31. The contact member 33 has an elastic arm for elastically contacting the insertion printed board 1, and the elastic arm and the insertion printed board 1 are arranged left and right after the insertion of the socket 3 and the insertion printed board is completed. One end of the contact element 33 is a printed board plugging end, the other end is a plug 2 plugging end which is coaxially plugged with the plug 2, and the elastic arm is positioned at the printed board plugging end.

As shown in fig. 4 to 8, the contact 33 includes a ground conductor 331 and a signal conductor 332, the ground conductor 331 and the signal conductor 332 are both disposed on the insulator 31, the ground conductor 331 includes a ground mounting portion 3311 fixed in the insulator 31, the ground mounting portion 3311 has a semi-enclosed structure, the signal conductor 332 includes a signal mounting portion 3321 fixed in the insulator 31, and the signal mounting portion 3321 is disposed in the ground mounting portion 3311. The ground mounting portion 3311 and the signal mounting portion 3321 are each interference fitted on the insulator 31. The grounding mount 3311 and the signal mount 3321 are provided with barbs 333 that are in close fit with the insulator, thereby improving the firmness of the grounding conductor 331 and the signal conductor 332.

The contact 33 has two kinds of elastic arms, which are a grounding elastic arm 3312 disposed on the grounding conductor 331 and a signal elastic arm 3322 disposed on the signal conductor 332, the grounding elastic arm 3312 and the signal elastic arm 3322 are both configured to elastically press against the plug-in printed board 1, and the signal elastic arm 3322 and the grounding elastic arm 3312 are disposed in front of and behind each other. The ground spring arm 3312 is located above the ground mounting portion 3311, and the signal spring arm 3322 is located above the signal mounting portion 3321.

As shown in fig. 5 and 6, the ground mounting portion 3311 and the signal mounting portion 3321 are each U-shaped, the ground mounting portion 3311 has a ground mounting groove 3313, the signal mounting portion 3321 has a signal mounting groove 3323, the ground mounting groove 3313 and the signal mounting groove 3323 are each U-shaped grooves, the signal mounting portion 3321 is positioned in the ground mounting portion 3311 after the ground conductor 331 and the signal conductor 332 are mounted on the insulator 31, and the notch of the signal mounting groove 3323 faces the bottom of the ground mounting groove 3313. The ground spring arm 3312 is formed by upwardly extending a groove bottom wall of the ground mounting groove 3313, and the signal spring arm 3322 is formed by upwardly extending and forwardly bending a groove side wall of the signal mounting groove 3323. The signal spring arm 3322 and the ground spring arm 3312 are both plate-shaped arms, and the thickness direction of the plate-shaped arms is the left-right direction. The signal spring arm 3322 and the grounding spring arm 3312 are spaced forward and rearward. The signal elastic arm 3322 and the ground elastic arm 3312 are each provided with a contact protrusion 334 for elastically pressing and contacting the plug printed board 1, and the contact protrusion 334 protrudes toward the plug printed board 1.

In this embodiment, the ground conductor 331 is adapted to make conductive contact with the plug outer conductor 23, and the signal conductor 332 is adapted to make conductive contact with the plug inner conductor 22. The grounding conductor 331 is provided with two grounding elastic contact pins 3314, the signal conductor 332 is provided with two signal elastic contact pins 3324, the grounding conductor 331 is in conductive contact with the plug outer conductor 23 through the grounding elastic contact pins 3314, the signal conductor 332 is in conductive contact with the plug inner conductor 22 through the signal elastic contact pins 3324, the grounding elastic contact pins 3314 are arranged in central symmetry, the signal elastic contact pins 3324 are arranged in central symmetry, and the symmetry center line of each grounding elastic contact pin 3314 is superposed with the symmetry center line of each signal elastic contact pin 3324. In this embodiment, the two signal elastic contact pins 3324 also satisfy plane symmetry, and the two ground signal elastic contact pins 3324 also satisfy plane symmetry.

The two grounding elastic contact pins 3314 are respectively disposed on the lower sides of the two opposite side walls of the grounding mounting groove 3313 and extend downward, and the grounding elastic contact pins 3314 are integrally disposed with the wall of the grounding mounting groove 3313. The two signal elastic contact pins 3324 are respectively disposed on two opposite side walls of the signal mounting groove 3323 and extend downward. As shown in fig. 5 and 6, the grounding elastic contact pin 3314 is disposed outside the signal elastic contact pin 3324, and the grounding elastic contact pin 3314 and the signal elastic contact pin 3324 are linearly disposed. As shown in fig. 9 and 10, when the plug 2 is inserted into the receptacle 3, the plug outer conductor 23 is in shielding conduction with the ground conductor 331, and the plug inner conductor 22 is in signal conduction with the signal conductor 332.

When the plug 2 is inserted, the two signal elastic contact pins 3324 are supported by the plug inner conductor 22, and the two ground elastic contact pins 3314 are supported by the plug outer conductor 23. The plugging mode reduces the plugging force of the traditional pin-hole plugging type, and simultaneously ensures the reliable conduction of the plug 2 and the socket 3.

In this embodiment, the insulator 31 includes a base 311, an insulating support 312, and an elastic arm limiting body for limiting the elastic arm, the base 311 is provided with an insulator hole 313, the ground conductor 331 is inserted into the insulator hole 313 from top to bottom, the insulating support 312 is integrally connected to the insulator hole 313, the insulating support 312 is provided with a mounting hole 314, and the signal conductor 332 is inserted into the mounting hole 314 of the insulating support 312 from top to bottom in an interference manner. Insulating support 312 and base member 311 integrated into one piece reduce insulator 31 quantity, the equipment of being convenient for improves the packaging efficiency, also reduces the size simultaneously, the high integrated design of being convenient for. The first section cross-section of insulator hole 313 is square, and second section cross-section is circular, is convenient for to inserting with the plug outer conductor, and first section can prevent ground conductor from rotating simultaneously, and ground conductor stability is better. In a similar way, the section of the upper half section of the mounting hole is also square, so that the rotation stopping of the signal conductor is realized, and the section of the lower half section of the mounting hole is also circular, so that the plug-in connector is convenient to plug in with the inner conductor of the plug. The upper end of the insulating support 312 is connected to the base, the lower end of the insulating support 312 is circular, an annular space for inserting the conductor sleeve of the plug outer conductor 23 is formed between the insulating support 312 and the insulator hole 313, and the plug and the socket can be guided to be inserted into each other through the insulating support 312.

As shown in fig. 15, a grounding stop step 3131 for stopping the lower end of the grounding conductor 331 is provided in the insulator hole 313, and after the grounding conductor 331 is inserted into the insulator hole 313, an upward stop surface of the stop step is engaged with the grounding conductor 331 in a stop manner. The mounting hole 314 is also provided with a signal stop step 3141, the signal stop step has an upward stop surface to stop the signal conductor 332, the lower end opening of the mounting hole 314 is flared, and a flared guide pin is inserted. The outer edge of the lower end of the support insulator 312 is provided with a chamfer that guides the insertion of the conductor sleeve.

A plurality of contacts 33 arranged one behind the other form contact groups 34, the spring arms of one contact group 34 forming one spring arm group. In this embodiment, a signal spring arm 3322 is disposed between adjacent ground spring arms 3312 in the same contact group 34. The contact group 34 is provided with four contact groups, wherein the elastic arm of each contact 33 in two contact groups 34 is used for being elastically pressed and contacted with the left side of the plug-in printed board 1, the elastic arm of each contact 33 in two contact groups 34 is used for being elastically pressed and contacted with the right side of the plug-in printed board 1, and the elastic arm used for being elastically pressed and contacted with the left side of the plug-in printed board 1 is matched with the elastic arm used for being elastically pressed and contacted with the right side of the plug-in printed board 1 to clamp the plug-in printed board 1, so that the socket 3 is electrically connected with the plug-in printed board 1. The left and right sides of the insertion printed board 1 are provided with contact portions to be fitted with the contact members 33 correspondingly. In this embodiment, one signal conductor 332 is in contact with the plug-in printed board 1 through one signal elastic arm, and each contact 33 independently transmits one path of signal, so that compared with a mode that the signal conductor clamps the printed board through two or more elastic arms in the prior art, the structure is simpler.

The four contact group 34 is connected with one plug-in printed board 1, so that the use number of the plug-in printed boards 1 is reduced, the complexity of the connector is simplified, the integration and miniaturization of the system are facilitated, the cost of the product is reduced, and the installation convenience of the product is also improved.

The elastic arm is used for forming a same-side contact assembly 35 by the contacts 33 elastically pressed on the same side of the plugging printed board 1, two same-side contact assemblies 35 are arranged, and each of the two same-side contact assemblies 35 comprises two contact groups 34. The two contact groups 34 in the same-side contact set 35 are arranged left and right.

The elastic arm group of the same-side contact assembly 35 meets the following conditions: one of the left and right adjacent elastic arm groups is an outer elastic arm group 36, the other one is an inner elastic arm group 37, the inner elastic arm group is located between the outer elastic arm group 36 and the plug-in printed board 1, the part of the outer elastic arm group 36 for elastically pressing and contacting the plug-in printed board 1 is an outer elastic arm contact part, the part of the inner elastic arm group for elastically pressing and contacting the plug-in printed board 1 is an inner elastic arm contact part, and the outer elastic arm contact part is located on the upper side of the inner elastic arm contact part. The plugging printed board 1 is provided with a first elastic arm matching part 11 contacting with the outer elastic arm contact part and a second elastic arm matching part 12 contacting with the inner elastic arm contact part, and the first elastic arm matching part 11 is positioned on the upper side of the second elastic arm matching part 12.

As shown in fig. 5, in the same-side contact assembly 35, the length of the elastic arm in the inner elastic arm group is smaller than that of the elastic arm in the outer elastic arm group 36, and the elastic arm in the outer elastic arm group 36 is bent inward, so that the outer elastic arm groups 36 on both sides of the socket printed board 1 clamp the socket printed board 1.

As shown in fig. 11, in this embodiment, in order to mount a large number of contacts 33 and make the volume of the socket 3 smaller, the contacts 33 in the two contact groups 34 adjacent to each other right and left are arranged in a staggered manner front and back, that is, in the two contact groups 34 adjacent to each other right and left, the projections of the contact center line in one contact group 34 and the contact center line in the other contact group 34 in the plane perpendicular to the right and left direction are spaced front and back. This makes the insulator 31 smaller in volume. Similarly, the portions of the plug-in printed board 1 that contact the contact members 33 are also arranged in a staggered manner.

As shown in fig. 12 to 14, the insulator 31 includes an elastic arm limiting body 316 for limiting the elastic arm, an elastic arm limiting groove 317 for accommodating the elastic arm is formed on the elastic arm limiting body 316, and front and rear groove walls of the elastic arm limiting groove 317 are adapted to cooperate with the elastic arm to limit the elastic arm from swinging back and forth. The notch of the elastic arm limiting groove 317 faces left or right, so that the elastic arm can swing left and right to deform after the socket is inserted into the printed board.

In this embodiment, two elastic arm limiting bodies 316 are provided, the same-side contact assembly 35 shares one elastic arm limiting body 316, the elastic arm limiting grooves 317 correspond to the number of the elastic arms one by one, the elastic arm limiting groove corresponding to the elastic arm in the outer elastic arm group 36 is an outer elastic arm limiting groove 3171, and the elastic arm limiting groove corresponding to the elastic arm in the inner elastic arm group 37 is an inner elastic arm limiting groove 3172. The inner side elastic arm limiting groove 3172 is a straight groove extending up and down, and the lower end of the inner side elastic arm limiting groove 3172 is opened to avoid an elastic arm in the inner side elastic arm group. The outer elastic arm limiting groove 3171 is a chute arranged at the upper part of the elastic arm limiting body 316 and is matched with the inclined section on the outer elastic arm. The elastic arm limiting body 316 can also prevent the inner elastic arm group and the outer elastic arm group from touching each other by mistake.

In order to facilitate processing and installation, the elastic arm limiting body 316 and the base body are detachably fixed, a bolt 315 inserted into the base body is arranged on the elastic arm limiting body 316, a jack matched with the bolt is arranged on the base body, and the bolt is in interference fit with the jack. During installation, the contact element with the inner elastic arm is installed firstly, then the elastic arm limiting body 316 is fixed, and finally the contact element with the outer elastic arm is installed. The elastic arm stopper 316 can prevent the elastic arm of the contact 33 from being touched by mistake.

In the socket assembling process, the contact is forcibly installed in the insulator, so that the installation is convenient and rapid. When the printed board connector assembly is used, the plug, the socket and the plugging printed board are plugged together, and then transmission of multiple signals can be achieved.

The embodiment 2 of the socket of the present invention is different from the above embodiments only in that, as shown in fig. 16, one end of the contact 33 of the socket 3 is a printed board plugging end that is plugged into the plugging printed board 1, the other end is a printed board connection end, the elastic arm is located at the printed board plugging end, the printed board connection end is provided with a fisheye structure 335, and the printed board connection end is electrically connected to the connection printed board 5 through the fisheye structure 335. The fisheye structure 335 is a fisheye needle, and the fisheye needle is used for being inserted onto the connection printed board 5 and being in conductive connection with the connection printed board 5. The printed board link of contact sets up three fisheye needle, and three fisheye needle is the straight line and arranges about, sets up one on the signal conductor wherein, sets up two on the ground conductor, and the fisheye needle on the signal conductor is in between the fisheye needle on two ground conductors. The structure of the printed board plug terminal is the same as that described in the above embodiment, and the mounting manner of the contact and the insulator is the same as that described in the above embodiment.

The embodiment 3 of the socket of the present invention is different from the above embodiments only in that in this embodiment, two contact sets are provided, and two elastic arm sets are respectively provided on both sides of the socket printed board. In other embodiments, the number of the contact groups may be any number, the number of the contact groups is not limited to an even number, and when three spring arm groups are provided, two spring arm groups may be provided on one side of the socket printed board and one spring arm group may be provided on the other side of the socket printed board. In other embodiments, the elastic arm groups can be arranged into five groups, six groups and the like.

The specific embodiment 4 of the socket of the present invention is different from the above specific embodiments only in that in this embodiment, there are two contact groups in the same-side contact set, and two groups of contacts are in tandem, but projections of the two contact groups in a plane perpendicular to the front-back extension straight line do not coincide, and similarly, on the premise that normal conduction operation between the plug-in printed board and the socket is satisfied, positions of the contact groups may be arranged as required.

The specific embodiment 5 of the socket of the present invention is different from the above specific embodiments only in that, in this embodiment, a contact group is disposed in the same-side contact set, the length of the grounding elastic arm in the contact group is greater than that of the signal elastic arm, and the portion of the socket printed board in contact with the grounding elastic arm is located above and the portion in contact with the signal elastic arm is located below.

Embodiment 6 of the receptacle of the present invention differs from the above embodiments only in that two grounding spring arms are provided for one grounding conductor, and the signal spring arms of the signal conductors in the contacts are located between the grounding spring arms of the grounding conductors. Similarly, in other embodiments, two signal elastic arms can be arranged on one signal conductor. In other embodiments, the number of the elastic arms on the contact piece can be set according to requirements.

The socket of the present invention according to embodiment 7 differs from the above embodiments only in that the contacts in two contact group adjacent to each other on the left and right are arranged in a row on the left and right, and the contacts are not arranged with a shift.

Embodiment 8 of the socket of the present invention is different from the above embodiments only in that the ground mounting portion has a C-shaped or V-shaped cross section. In other embodiments, the ground mounting portion may also be a fully enclosed structure.

Embodiment 9 of the socket of the present invention is different from the above embodiments only in that the ground mounting portion and the signal mounting portion are adhesively fixed to the insulator.

The embodiment 10 of the socket of the present invention is different from the above embodiments only in that the insulating support and the base are separately structured and fixed by a strong fitting.

The embodiment 11 of the socket of the present invention is different from the above embodiments only in that the signal conductor is provided with a jack adapted to the plug inner conductor, and the signal conduction between the plug and the socket is realized after the plug inner conductor is inserted into the jack. In other embodiments, the ground conductor may also be disposed in a receptacle adapted to an outer conductor of the plug.

The embodiment 12 of the socket of the present invention is different from the above embodiments only in that three grounding spring contact pins are provided, and the three grounding spring contact pins are uniformly arranged around the center line of the contact. In other embodiments, more than four grounding elastic contact pins can be arranged. The signal elastic contact pins can be arranged more than three in the same way.

The embodiment 13 of the socket of the present invention is different from the above embodiments only in that the inner conductor of the plug is an insert, and the signal conductor is provided with a signal elastic contact pin for clamping the insert after the plug is plugged into the socket.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

1. A socket for plugging up and down with a plugging printed board (1), comprising:

an insulator (31);

characterized in that, socket (3) still includes:

the contact piece (33) is provided with an elastic arm which is used for being in elastic contact with the plug-in printed board (1), the elastic arm is used for being arranged on the left and right of the plug-in printed board (1), the contact piece (33) comprises a grounding conductor (331) and a signal conductor (332), the grounding conductor (331) and the signal conductor (332) are both arranged on the insulator (31), the elastic arm comprises a grounding elastic arm (3312) arranged on the grounding conductor (331) and a signal elastic arm (3322) arranged on the signal conductor (332), the grounding elastic arm (3312) and the signal elastic arm (3322) are both used for being in elastic pressure contact with the plug-in printed board (1), and the signal elastic arm (3322) and the grounding elastic arm (3312) are arranged in the front and back directions;

the at least two contact pieces (33) arranged in front and back form at least two contact piece groups (34), wherein the elastic arm of each contact piece (33) in at least one contact piece group (34) is used for being elastically pressed and contacted with the left side of the plug-in printed board (1), the elastic arm of each contact piece (33) in at least one contact piece group (34) is used for being elastically pressed and contacted with the right side of the plug-in printed board (1), and the elastic arm used for being elastically pressed and contacted with the left side of the plug-in printed board (1) is matched with the elastic arm used for being elastically pressed and contacted with the right side of the plug-in printed board (1) to clamp the plug-in printed board (1) so as to realize the conductive connection of the socket (3) and the plug-in printed board (1).

2. The socket according to claim 1, wherein at least two contact group (34) form a same-side contact set (35), and the spring arms of the contacts (33) in the same-side contact set (35) are all used for being elastically pressed against the same side of the plug-in printed board (1).

3. A socket according to claim 2, wherein at least two contact groups (34) in the same-side contact set (35) are arranged left and right, each spring arm of one contact group (34) forms one spring arm group, and the spring arm groups of the same-side contact set (35) satisfy: one of the left and right adjacent elastic arm groups is an outer elastic arm group (36), the other one is an inner elastic arm group (37), the inner elastic arm group (37) is located between the outer elastic arm group (36) and the plug-in printed board (1), the part of the outer elastic arm group (36) which is elastically pressed and contacted with the plug-in printed board (1) is an outer elastic arm contact part, the part of the inner elastic arm group (37) which is elastically pressed and contacted with the plug-in printed board (1) is an inner elastic arm contact part, and the outer elastic arm contact part is located on the upper side of the inner elastic arm contact part.

4. A socket according to claim 3, wherein the number of the contact group (34) is an even number, and the half number of the spring arms of the contact group (34) is for elastically pressing against the left side of the plug printed board (1), and the half number of the spring arms of the contact group (34) is for elastically pressing against the right side of the plug printed board (1).

5. The receptacle of claim 1 or 2 or 3 or 4 wherein a signal spring arm (3322) is disposed between adjacent ground spring arms (3312) in the same contact set (34).

6. A socket according to claim 1 or 2 or 3 or 4, wherein the contacts (33) in two contact groups (34) adjacent to each other are arranged in a staggered manner from front to back: the contact center lines in one of the contact groups (34) and the contact center lines in the other contact group (34) are spaced back and forth in projection in a plane perpendicular to the left-right direction.

7. The receptacle of claim 1 or 2 or 3 or 4 wherein the ground conductor (331) includes a ground mounting portion (3311) secured within the dielectric body (31), the ground mounting portion (3311) being in a semi-enclosed configuration, and the signal conductor (332) includes a signal mounting portion (3321) secured within the dielectric body (31), the signal mounting portion (3321) being within the ground mounting portion (3311).

8. The receptacle of claim 7 wherein the ground mount (3311) and the signal mount (3321) are interference fit on the insulator (31).

9. The socket of claim 8, wherein the ground mounting portion (3311) and the signal mounting portion (3321) are provided with barbs (333) that are a close fit with the insulator.

10. The socket according to claim 1, 2, 3 or 4, wherein the insulator (31) comprises a base body (311) and an elastic arm limiting body (316) for limiting the elastic arm, the elastic arm limiting body (316) is provided with an elastic arm limiting groove (317) for the elastic arm to be arranged in, and the front side groove wall and the rear side groove wall of the elastic arm limiting groove (317) are used for being matched with the elastic arm in a stopping way.

11. The socket of claim 10, wherein the spring arm retainer (316) is removably and fixedly connected to the base (311).

12. The socket according to claim 1, 2, 3 or 4, wherein the insulator (31) comprises a base body (311) and an insulating support body (312), an insulator hole (313) is formed in the base body (311), the insulating support body (312) is arranged in the insulator hole (313), the grounding conductor is inserted into the insulator hole (313) in an interference mode, the signal conductor (332) is inserted into the insulating support body (312) in an interference mode, and the insulating support body (312) and the base body (311) are integrally formed.

13. A socket according to claim 1 or 2 or 3 or 4, wherein the contact member (33) has a printed board insertion end at one end and a printed board connection end at the other end, the spring arm is located at the printed board insertion end, the printed board connection end is provided with a fish eye structure (335), and the printed board connection end is used for electrically connecting with the connection printed board (5) through the fish eye structure (335).