CN211605452U

CN211605452U - Board-to-board connector

Info

Publication number: CN211605452U
Application number: CN202020053142.5U
Authority: CN
Inventors: 吕晓钟; 何鎏; 张学春
Original assignee: SHENZHEN GLGNET ELECTRONICS CO Ltd
Current assignee: Shenzhen direction Electronics Co.,Ltd.
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-09-29
Anticipated expiration: 2030-01-10

Abstract

The utility model discloses a board-to-board connector, which comprises an insulating seat body with a longitudinal main body, a plurality of conductive terminals arranged on the insulating seat body and fixing devices respectively arranged at two ends of the insulating seat body, wherein the insulating seat body is provided with a plurality of accommodating grooves for fixing the conductive terminals, the conductive terminals are provided with a vertical U-shaped structure part and an inverted U-shaped structure part connected with the vertical U-shaped structure part in parallel, the two U-shaped structure parts are provided with a common elastic arm which inclines outwards in the accommodating grooves, the widths of the opening grooves of the vertical U-shaped structure parts are the same from top to bottom, the width of the lower end of the opening groove of the inverted U-shaped structure part is smaller than that of the upper end, so that the vertical U-shaped structure part inclines outwards in the accommodating grooves of the conductive terminals, and when the conductive terminals are extruded by external force, the vertical U-shaped structure parts incline outwards, the common elastic arm quickly forms a supporting point on the conductive, so as to prevent the U-shaped structure portion of the conductive terminal from deforming and losing elasticity due to extrusion.

Description

Board-to-board connector

Technical Field

The utility model relates to a connector product field, in particular to board connector of installing on circuit board.

Background

A board-to-board connector (board-to-board connector) is used to connect two PCBs together for signal transmission, and the general board-to-board connectors are all paired and include a socket and a plug, which are connected to each other for electrical connection.

Since the board-to-board connector is mainly applied to electronic products, the electronic products are always developed in the directions of lightness, thinness and smallness, the board-to-board connector also needs to be developed in the direction of miniaturization, under the condition of not affecting the functions of the products, the sizes of the board-to-board connectors are reduced as much as possible, before the board-to-board connector is arranged on a circuit board of the electronic products, the board-to-board connector needs to be electrically tested, when the plug of the existing board-to-board connector is inserted into the socket, the plug terminal is completely contained in the plug terminal when the plug terminal is inserted into the socket for engagement, the socket terminal refers to a Chinese patent No. ZL200410039258.9 related to the board-to-board connector in the prior art, as shown in the drawings of 4 to 6, the plug 50 is inserted into the socket 30, the annular contact part 57 of the plug 50 terminal is completely embedded in the U-shaped contact part of the socket 30 terminal, and the No. 1 bent, the entrance at the upper end of the U-shaped contact portion is narrow, and after electrical detection is performed, a large force is required for pulling out the plug 30, and related operators often pull out the plug forcibly, and the force used for pulling out the plug forcibly is not uniform, so that the conductive terminals of the socket may be damaged, and the formal use effect of the connector is affected. Is not favorable for market competitiveness; meanwhile, the board-to-board connector is longer in the longitudinal direction, which is not favorable for the development trend of light, thin and short products.

In view of the above, the present inventors propose the following.

Disclosure of Invention

An object of the utility model is to overcome prior art not enough, provide a board to board connector.

In order to solve the technical problem, the utility model discloses a following technical scheme: this board is to board connector, including the insulating pedestal of lengthwise form main part, install a plurality of conductive terminal on insulating pedestal and install the fixing device in insulating pedestal both ends respectively, insulating pedestal is equipped with the fixed accepting groove of a plurality of conductive terminal, its characterized in that: the conductive terminal is provided with a vertical U-shaped structure part and an inverted U-shaped structure part connected with the vertical U-shaped structure part in parallel, the two U-shaped structure parts are provided with a common elastic arm, the common elastic arm is inclined obliquely, so that the conductive terminal of the vertical U-shaped structure part is inclined towards the outer side in the accommodating groove, and the bottom end of the common elastic arm of the conductive terminal can quickly form a supporting point after the conductive terminal is extruded.

Further, in the above-described aspect, the upright U-shaped structure portion has an open groove having the same width in the vertical direction, and a contact portion is provided at the upper end of the outer arm of the upright U-shaped structure portion so as to protrude outward from the electrical terminal accommodation groove; the inverted U-shaped structure part is provided with an open slot with the width of the lower end smaller than that of the upper end, so that the common elastic arm connected with the open slot inclines outwards.

In the above-described aspect, the common spring arm extends obliquely upward toward the inner wall surface of the terminal accommodating groove and is connected to the upright U-shaped structure portion.

Furthermore, in the above technical solution, the conductive terminal has a welding pin extending outward from the insulating base, the welding pin is bent inward and extends to form a first holding portion, the first holding portion is vertically bent upward to form a second holding portion, and the second holding portion is connected to the front double-U-shaped structure portion.

Further, in the above technical solution, a groove is disposed on a lower surface of the insulating base, and the first holding portion is fixed in the groove; the second fixing part is fixed in the conductive terminal accommodating groove, and the groove is communicated with the accommodating groove.

Furthermore, in the above technical solution, the upper surface of the main body is provided with a slot for inserting and embedding a plug into the slot, the center of the slot extends upward to form a protruding platform for embedding the plug, and the receiving slots fixed by the plurality of conductive terminals are disposed on two sides of the protruding platform.

Furthermore, in the above technical solution, an opening for installing the fixing device is formed in a side surface of the fixing portion of the insulating base, a transverse slot for fixing the fixing device is formed in the opening, and the pair of positioning posts are oppositely disposed on a lower surface of the fixing portion.

Furthermore, in the above technical solution, the fixing device has a cross arm matching with the transverse groove, a transition part is provided at the lower edge of the cross arm in a downward extending manner, and barbs fixed by interfering with the transverse groove are respectively provided at two sides of the transition part; and a patch for welding and fixing the circuit board is bent outwards at the transition part, and the patch is provided with a groove with a tin-absorbing structure.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: the utility model utilizes the common elastic arm of the conductive terminal double U-shaped structure to incline outwards in the containing groove, so that the contact part of the conductive terminal is also inclined outwards, and the bottom end of the common elastic arm can be quickly abutted against the second fixing part to form a supporting point after the conductive terminal is stressed, thereby preventing the conductive terminal double U-shaped structure part from deforming and losing elasticity due to extrusion, and quickly recovering the elasticity to improve the utilization rate of the connector; meanwhile, the novel board-to-board connector is reduced in transverse dimension so as to meet the development of electronic products in the light and thin direction.

Drawings

The foregoing features, technical features, advantages and embodiments are further described in the following detailed description of the preferred embodiments, which is to be read in connection with the accompanying drawings.

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a perspective exploded view of the present invention from another perspective.

Fig. 3 is a perspective view of the present invention after assembly.

Fig. 4 is a plan view of fig. 3.

Fig. 5 is a sectional view in the direction a-a of fig. 4.

Description of reference numerals:

100 board to board connector, 1 insulating housing

10 main body 11 boss

101 slot 111 receiving slot

112 groove 12 fixing part

121 opening 122 transverse groove

13 positioning column 2 conductive terminal

21 welding feet 22 first fixing part

23 second holding part 24 inverted U-shaped structure part

241. U-shaped structural part with 251 open slot 25 standing upright

252 contact 26 coaching arms

27 support point 3 fixing device

31 crossbar 32 transition

321 barb 33 patch

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In the embodiments shown in the drawings, the directions such as up, down, left, right, front, and rear are used to explain the structure and movement of various components of the present invention not absolutely but relatively. These illustrations are appropriate when these components are in the positions shown in the figures. If the description of the positions of these components changes, the indication of these directions changes accordingly.

In addition, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

In the present embodiment, as shown in fig. 1, the board-to-board connector receptacle structure is disclosed, the board-to-board connector 100 is surface mounted on a circuit board, and includes an insulating housing 1 extending along a longitudinal direction, a plurality of conductive terminals 2 mounted in the insulating housing 1, and fixing devices 3 mounted at two ends of the insulating housing 1 and connected to and fixed on the circuit board.

The insulation seat body 1 described above has a main body 10 extending along the longitudinal direction, the upper surface of the main body 10 is provided with a boss 11 for inserting and embedding a plug into a longitudinal slot 101, the center of the slot 101 extends upward and is protrudingly provided with a boss 11 for embedding the plug, please refer to fig. 1, 2 and 5, two side surfaces of the boss 11 are provided with a plurality of conductive terminal accommodating grooves 111 for accommodating a plurality of conductive terminals 2, the conductive terminal accommodating grooves 111 extend outward and are communicated with a groove 112 on the lower surface of the main body 10 for fixing a first holding portion 22 of the conductive terminal 2; the fixing portion 12 is formed on two sides of the main body 10 and is fixedly mounted on the circuit board, the side of the fixing portion 12 is provided with an opening 121 for the fixing device 3 to be mounted, the opening 121 is provided with a transverse slot 122 for the fixing device 3 to be fixed, and the pair of positioning posts 13 are oppositely arranged on the lower surface of the fixing portion 12, so that the board-to-board connector 100 is better positioned on the circuit board to provide convenience for assembly.

Referring to fig. 4 and 5, a plurality of conductive terminals 2 are respectively accommodated and fixed in the conductive terminal accommodating grooves 111, each conductive terminal 2 has a soldering leg 21 extending outward from the insulating base 1, the soldering leg 21 is bent inward and extends to form a first holding portion 22 mounted in the groove 112, the first holding portion 22 is vertically folded upward to form a second holding portion 23 fixed on the inner wall surface of the conductive terminal accommodating groove 111, the top end of the second holding portion 23 is bent downward to form an inverted U-shaped structure portion 24, an upright U-shaped structure portion 25 is connected in parallel with the inverted U-shaped structure portion 24, and a common elastic arm 26 is arranged between the inverted U-shaped structure portion 24 and the upright U-shaped structure portion 25 to form a double U-shaped structure to enhance the quick recovery of the elastic force after the conductive terminal is stressed; the width of the lower end of the opening groove 241 of the front inverted U-shaped structure part 24 is smaller than that of the upper end, so that the common elastic arm 26 inclines outwards, thus the connected upright U-shaped structure parts are also inclined outwards in the conductive terminal accommodating groove 111, the widths of the opening grooves 251 of the upright U-shaped structure parts 25 are the same from top to bottom, the upper end of the outer arm of the upright U-shaped structure part 25 is provided with a contact part 252 protruding outwards towards the conductive terminal accommodating groove 111, and the contact part 252 is used for abutting against the plug connector to realize the electric signal transmission between the two electric connectors; since the contact portion 252 is compressed into the conductive terminal receiving groove 111 by the plug, the bottom end of the common elastic arm 26 is quickly abutted on the second holding portion 23 to form a supporting point 27 structure, so as to prevent the conductive terminal double-U-shaped structure portion from being deformed and losing elasticity by being compressed.

The common spring arm extends obliquely from the upper side to the inner wall surface of the terminal accommodating groove and is connected to the upright U-shaped structure part, so that the upright U-shaped structure part can incline towards the outer side in the terminal accommodating groove.

The fixing device 3 is used for welding the board-to-board connector 100 on the circuit board, the fixing device 3 is installed and fixed in the opening 121 of the fixing portion 12 at the two side ends of the insulating base 1, and has a cross arm 31 matching with the transverse slot 122, a transition portion 32 is extended downwards at the lower edge of the cross arm 31, and two sides of the transition portion 32 are respectively provided with a barb 321 interfering with the transverse slot 122, so as to be beneficial for tightly fixing the fixing device 3 and the transverse slot 122; and a patch 33 for providing circuit board welding fixation is bent outwards from the transition part 32, and the patch 33 is provided with a groove with a tin-plated structure.

Referring to fig. 3, the board-to-board connector 100 of the present invention can be assembled by assembling a plurality of stamped conductive terminals 2 with material strips into corresponding conductive terminal receiving slots 111 from the lower surface of the insulating base 1, and the first and

second fixing portions

22 and 23 are fixed to the inner wall surfaces of the slots 112 and the conductive terminal receiving slots 111, and the flatness of the conductive terminals is adjusted by a jig, and then the two fixing devices 3 are fixed and installed through the openings 121 to complete the product of the present invention; integrated into one piece accomplishes the utility model discloses it is simpler, during the conductive terminal 2 that will have the material area directly places the mould, through integrative injection moulding in insulating pedestal 1, directly fixed conductive terminal 2, simpler effectively forms semi-manufactured goods, fixes fixing device 3 equipment in opening 121 again and accomplishes promptly the utility model discloses the board is to board electricity connector 100.

The utility model discloses board to board connector 100 is the socket, it reaches the connection in order to be electric connection with corresponding plug (not shown) cooperation, the contact site 252 of conductive terminal 2 receives the plug extrusion to make conductive terminal 2 to the accepting groove 111 internal contraction because two-way U type structure, because just stand U type structure 25 and handstand U type structure 24 the common shell arm 26 to the lateral tilt, play the quick butt in order to form the strong point 27 structure in 26 bottoms of common shell arm on second holding portion 23, in order to prevent that the two U type structure portions of conductive terminal from receiving the extrusion and warping and losing elasticity, resume elasticity fast in order to promote the connector utilization ratio.

In combination with the above embodiment, the present invention utilizes the common elastic arm 26 of the conductive terminal double U-shaped structure to incline to the outside in the receiving slot 111, so that the contact portion of the conductive terminal also inclines to the outside, and the bottom end of the common elastic arm 26 can be quickly abutted against the second holding portion 23 to form a supporting point after the conductive terminal 2 is stressed, so as to prevent the conductive terminal double U-shaped structure portion from being deformed and losing elasticity due to extrusion, and quickly recover the elasticity to improve the utilization rate of the connector; meanwhile, the novel board-to-board connector 100 is reduced in the lateral dimension to meet the development of electronic products in the direction of lightness and thinness.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in detail in a certain embodiment.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a board to board connector, includes the insulating pedestal of lengthwise form main part, installs a plurality of conductive terminal on insulating pedestal and installs the fixing device in insulating pedestal both ends respectively, insulating pedestal is equipped with the fixed accepting groove of a plurality of conductive terminal, its characterized in that: the conductive terminal is provided with an upright U-shaped structure part and an inverted U-shaped structure part connected with the upright U-shaped structure part in parallel, the upright U-shaped structure part and the inverted U-shaped structure part are provided with a common elastic arm, the common elastic arm is inclined, so that the conductive terminal of the upright U-shaped structure part is inclined towards the outer end in the accommodating groove, and the bottom end of the common elastic arm can quickly form a supporting point after the conductive terminal is extruded.

2. The board-to-board connector according to claim 1, wherein: the upright U-shaped structure part is provided with open slots with the same width up and down, and the upper end of the outer arm of the upright U-shaped structure part is provided with a contact part protruding towards the conductive terminal accommodating slot; the inverted U-shaped structure part is provided with an open slot with the width of the lower end smaller than that of the upper end, so that the common elastic arm connected with the open slot inclines outwards.

3. The board-to-board connector according to claim 2, wherein: the common elastic arm extends obliquely from the upper part to the inner wall surface of the terminal containing groove and is connected with the upright U-shaped structure part.

4. The board-to-board connector according to claim 2, wherein: the conductive terminal is provided with a welding pin extending out of the insulating base body, the welding pin is bent inwards and extends to be provided with a first fixing part, the first fixing part is vertically bent upwards to be provided with a second fixing part, and the second fixing part is connected with the inverted U-shaped structure part.

5. The board-to-board connector according to claim 4, wherein: the lower surface of the insulating seat body is provided with a groove, and the first fixing part is fixed in the groove; the second fixing part is fixed in the conductive terminal accommodating groove, and the groove is communicated with the accommodating groove.

6. The board-to-board connector according to claim 1, wherein: the upper surface of the main body is provided with a lengthwise slot for inserting and embedding a plug, the center of the slot extends upwards to form a boss for embedding the plug, and the accommodating grooves fixed by the plurality of conductive terminals are arranged on two sides of the boss.

7. The board-to-board connector according to claim 1, wherein: the side surface of the fixing part of the insulating base body is provided with an opening for installing the fixing device, a transverse groove for fixing the fixing device is arranged in the opening, and the pair of positioning columns are oppositely arranged on the lower surface of the fixing part.

8. The board-to-board connector according to claim 7, wherein: the fixing device is internally provided with a cross arm matched with the transverse groove, the lower edge of the cross arm extends downwards to be provided with a transition part, and two sides of the transition part are respectively provided with barbs which are fixed with the transverse groove in an interference manner; and a patch for welding and fixing the circuit board is bent outwards at the transition part, and the patch is provided with a groove with a tin-absorbing structure.