CN212085268U

CN212085268U - Board-to-board connector

Info

Publication number: CN212085268U
Application number: CN202021288544.XU
Authority: CN
Inventors: 李晓炜; 黄力强; 郑大春
Original assignee: Kunshan Jiahua Electronics Co Ltd
Current assignee: Kunshan Jiahua Electronics Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-12-04
Anticipated expiration: 2030-06-30

Abstract

A board-to-board connector comprises an insulating body, a plurality of conductive terminals fixed with the insulating body and a metal frame, wherein the insulating body comprises a bottom wall, two side walls formed by upwards extending the bottom wall along the two transverse ends of the board-to-board connector and two end walls formed by upwards extending the bottom wall along the two longitudinal ends of the board-to-board connector, the bottom wall, the two side walls and the two end walls jointly define a butt joint cavity with an upward opening, a butt joint connector is inserted into the butt joint cavity, the metal frame is provided with a top surface part, a side surface part and an elastic wall part, the top surface part covers or is embedded into at least part of the upper surface of the end wall, the side surface part correspondingly covers or is embedded into at least part of the outer surface of the side wall, the elastic arm part is further extended from the corresponding side surface part, the elastic arm part at least partially protrudes, the structural stability is better.

Description

Board-to-board connector

[ technical field ] A method for producing a semiconductor device

The utility model relates to a board is to board connector.

[ background of the invention ]

A Board to Board Connector (BTB) is a Connector often used in electronic devices (e.g., mobile phones, tablet computers, etc.), and is used to mechanically and electrically interconnect a main Board of the electronic device and modules (e.g., a display module, a touch module, a camera module, etc.). The board-to-board connector generally comprises a plug and a socket, both the plug and the socket are composed of a plastic body and conductive terminals fixed on the plastic body, the plastic body mainly plays a role in insulating and positioning the conductive terminals, and the conductive terminals mainly play a role in conduction. Generally, the plug and the socket of the existing board-to-board connector can also add a protective bracket to improve the strength of the connector; and the protective bracket of the socket is provided with an elastic sheet for overlarge current, and meanwhile, the socket forms an abdicating space on the side wall of the insulating body of the socket so as to accommodate the elastic sheet of the protective bracket. However, the height of the insulating body of the socket is limited, so that the force arm of the elastic sheet is short, namely, the lowering amount of the elastic sheet is too large, the force attenuation of the elastic sheet is obvious after the socket is plugged and pulled out, and the contact stability of the board to the board connector is poor.

Therefore, a new design is needed to overcome the above-mentioned drawbacks.

[ Utility model ] content

An object of the utility model is to provide a new board is to board connector.

The utility model aims at realizing through the following technical scheme:

a board-to-board connector comprises an insulating body, a plurality of conductive terminals fixed with the insulating body and a metal frame, wherein the insulating body comprises a bottom wall, two side walls formed by upwards extending the bottom wall along the two transverse ends of the board-to-board connector and two end walls formed by upwards extending the bottom wall along the two longitudinal ends of the board-to-board connector, the bottom wall, the two side walls and the two end walls jointly define a butt joint cavity with an upward opening, a butt joint connector is inserted into the butt joint cavity, the metal frame is provided with a top surface part, a side surface part and an elastic wall part, the top surface part covers or is embedded into at least part of the upper surface of the end wall, the side surface part correspondingly covers or is embedded into at least part of the outer surface of the side wall, the elastic arm part is formed by further extending the corresponding side surface part, at least part of the elastic, the contact part can realize displacement along the plugging direction of the butting connector and can realize displacement along the transverse direction of the board-to-board connector.

Further, the elastic arm portion comprises a connecting section and an elastic deformation section, the contact portion is formed on the elastic deformation section, the connecting section connects the elastic deformation section with the corresponding side portion, and the connecting section can elastically deform along the plugging and unplugging direction of the butting connector.

Furthermore, the elastic deformation section extends along the plugging direction of the butting connector, a yielding hole is formed in the end part position of the insulating body corresponding to the elastic deformation section, and the end part of the elastic deformation section protrudes into the yielding hole.

Further, each the lateral wall is formed with the medial surface, two form between the medial surface of lateral wall the butt joint cavity, each the lateral wall corresponds elastic deformation section position is inwards sunken to be formed with the groove of stepping down, elastic deformation section part at least hold in the inslot of stepping down, step down the groove with the butt joint cavity is along the horizontal direction intercommunication of board to the board connector, and by medial surface place plane division is divided, the groove of stepping down sets up with the through-hole along the upper and lower direction intercommunication of board to the board connector.

Further, the top surface portion includes the top surface lateral part of an organic whole connection, the top surface lateral part corresponds to cover or imbed the lateral wall is close to the upper surface of end wall position, the linkage segment by side portion keeps away from one of the edges of diapire bends to extend and forms, the linkage segment is located the below of top surface lateral part.

The metal frame further comprises an end surface portion formed by bending and extending the top surface portion towards the insertion direction of the butting connector, the end surface portion correspondingly covers or is embedded into at least part of the outer surface of the end wall, the side surface portion is formed by bending and extending the end surface portion along the longitudinal direction of the board-to-board connector, and the side surface portion and the top surface side portion are at least partially not integrally connected.

Furthermore, one end of the top side part, which is far away from the top surface part in the longitudinal direction of the board-to-board connector, is bent towards the insertion direction of the butting connector to form a locking part, an accommodating groove for accommodating the locking part is formed in the side wall, one of the side part and the corresponding locking part forms a convex block, and the other forms a clamping groove which is clamped and fixed with the convex block.

Furthermore, each side surface portion is bent and extended towards the direction of the butt joint cavity along the longitudinal direction of the board butt joint connector at one end far away from the top surface portion to form a connecting portion, a containing groove for containing the connecting portion is formed in the side wall, the connecting portion is bent and extended along the longitudinal direction of the board butt joint connector at the end edge in the pulling-out direction of the butt joint connector to form a top surface side wall, the top surface side wall covers or is embedded into the upper surface of the side wall close to the end wall, the connecting section is formed by bending and extending one end edge of the side surface portion far away from the bottom wall, and the connecting section is located below the top surface side wall.

Furthermore, one of the side wall of the top surface and the top surface part forms a convex part, the other forms a clamping groove matched with the convex part, and the convex part and the clamping groove are locked and fixed.

Further, the side surface portions are formed by extending both end positions of the top surface portion in the transverse direction of the board-to-board connector toward the insertion direction of the mating connector and further extending toward the extending direction of the side walls; or the metal frame further comprises an end surface part formed by bending and extending the top surface part towards the insertion direction of the butting connector at the two end edge positions of the board-to-board connector in the longitudinal direction, the end surface part correspondingly covers or is embedded into at least part of the outer surface of the end wall, and the side surface part is formed by bending and extending the end surface part towards the longitudinal direction of the board-to-board connector at the two end positions of the board-to-board connector in the transverse direction.

Compared with the prior art, the utility model discloses an in the board to the board connector, the elasticity arm of metal crate has better elastic effect, and is difficult to take place plastic deformation, and structural stability is better.

[ description of the drawings ]

Fig. 1 is a perspective view of the board-to-board connector of the present invention, particularly, showing a portion of the board-to-board connector in a longitudinal direction;

fig. 2 is a top view of the board-to-board connector of the present invention, particularly, showing a portion of the longitudinal direction of the board-to-board connector;

fig. 3 is a bottom view of the board-to-board connector of the present invention, particularly, showing a portion of the longitudinal direction of the board-to-board connector;

fig. 4 is a partial exploded perspective view of the board-to-board connector of the present invention, which mainly shows a perspective view of the metal frame separated from the insulating body, and further shows only a portion of the board-to-board connector in the longitudinal direction;

FIG. 5 is a perspective view of the board-to-board connector shown in FIG. 4 from another angle;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 7 is a perspective view of another embodiment of a metal frame of the board-to-board connector of the present invention;

fig. 8 is a perspective view of the metal frame shown in fig. 7 from another angle.

[ detailed description ] embodiments

Hereinafter, a specific embodiment of the board-to-board connector of the present invention will be described with reference to fig. 1 to 8.

It should be noted that the embodiments and features of the embodiments in the application may be combined with each other without conflict.

In addition, in the description of the application, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the application can be understood in a specific context by those of ordinary skill in the art.

In the description of the application, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover or embed non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

For the accuracy of the full description, all the related directions refer to fig. 1, where the direction of the X axis is the longitudinal direction of the board-to-board connector, the direction of the Y axis is the transverse direction of the board-to-board connector, and the direction of the Z axis is the up-down direction of the board-to-board connector (which may also be described as the plugging and unplugging direction of the mating connector), where the positive direction of the Z axis is up.

Referring to fig. 1 to 6, a board-to-board connector according to a first embodiment of the present disclosure is partially omitted in the longitudinal direction of the board-to-board connector in order to clearly show the structure of the board-to-board connector as much as possible. The structure of both ends in the longitudinal direction of the board-to-board connector is identical.

Referring to fig. 1 to 6, the board-to-board connector includes an insulating body 1, a plurality of conductive terminals 2 fixed to the insulating body 1, and a metal frame 3. The insulating body 1 comprises a bottom wall 11, two side walls 12 formed by extending the bottom wall 11 upwards along two transverse ends of the board-to-board connector, and two end walls 13 formed by extending the bottom wall 11 upwards along two longitudinal ends of the board-to-board connector. The bottom wall 11, the two side walls 12 and the two end walls 13 together define a docking cavity 10 which is open upwards. The docking cavity 10 is for a docking connector (not shown) to be inserted. In this application, the board-to-board connector is actually a board-to-board socket connector, and the board-to-board connector further includes a island wall 14 located at the middle position of the docking cavity 10 and formed by upward extending the bottom wall 11, and the docking cavity 10 is actually in a ring structure.

In this application, a plurality of the conductive terminals 2 are divided into two rows and fixed on the two side walls 12, each conductive terminal 2 includes a fixed portion (not numbered) fixed on the insulating body, a contact arm (not numbered) extended from one end of the fixed portion and at least partially protruding into the butt joint cavity 10, and a soldering portion (not numbered) extended from the other end of the fixed portion and protruding out of the insulating body, and the soldering portion is used for fixing and electrically connecting with a butt joint circuit board (not shown).

Referring to fig. 3 to 5, the metal frame 3 is formed by stamping and bending a metal plate, the metal frame 3 is provided with a top surface portion 311, a side surface portion 32 and an elastic wall portion 33, and the top surface portion 311 covers or is embedded (the embedding means that the outer surfaces of the two are flush, and the embodiment shown in the figures of the present specification is a manner of covering) at least a part of the upper surface of the end wall 13. The side surface portion 32 is correspondingly covered or embedded in at least a part of the outer surface of the side wall 12. The elastic arm 33 is formed by extending the corresponding side portion 32, the elastic arm 33 at least partially protrudes into the mating cavity 10 and forms a contact portion 330, and when a mating connector (not shown) is inserted into the mating cavity 10, the contact portion 330 can displace along the plugging direction of the mating connector and can displace along the transverse direction of the board-to-board connector.

Referring to fig. 3 to 5, the elastic arm 33 includes a connecting section 331 and an elastic deformation section 332, and the contact portion 330 is formed on the elastic deformation section 332. The elastic deformation section 332 extends along the plugging and unplugging direction of the mating connector, and the elastic deformation section 332 and the corresponding side surface portion 32 are spaced and arranged opposite to each other along the transverse direction of the board-to-board connector. The connecting portion 331 connects the upper edge of the elastic deformation portion 332 to the upper edge of the corresponding side portion 32. The connection section 331 is elastically deformable in the insertion and extraction direction of the mating connector. In this design, the connecting section 331 and the elastic deformation section 332 are designed to be formed by bending and extending the upper end edge position of the side portion 32, so that the elastic arm portion 33 formed by the connecting section 331 and the elastic deformation section 332 together can have a longer arm length, so that the contact portion 330 can move along the plugging and unplugging direction of the mating connector (realized by the elastic deformation of the connecting section 331 along the plugging and unplugging direction of the mating connector), and at the same time, the contact portion 330 can move along the transverse direction of the board-to-board connector (realized by the elastic deformation of the elastic deformation section 332 along the transverse direction of the board-to-board connector). Therefore, when the board-to-board connector is butted with the butting connector, the contact part 330 has better elastic displacement dimension, effective contact with the butting connector is ensured, and plastic deformation is prevented.

Referring to fig. 3 to fig. 6, an abdicating hole 101 is formed at a position of the end portion of the insulating body 1 corresponding to the elastic deformation section 332 (an end portion of the free end, that is, a position of the lower end close to the bottom wall 13), and an end portion of the elastic deformation section 332 correspondingly protrudes into the abdicating hole 101. An inner side surface 120 is formed on each side wall 12, a butt joint cavity 10 is formed between the inner side surfaces 120 of the two side walls 12, a yielding groove 1201 is formed in the position, corresponding to the elastic deformation section 332, of each side wall 12, the elastic deformation section 332 is at least partially accommodated in the yielding groove 1201, and the yielding groove 1201 is communicated with the butt joint cavity 10 along the transverse direction of the board-to-board connector and is divided by the plane where the inner side surface 120 is located. The receding groove 1201 and the through hole 101 are arranged in a manner of communicating with each other in the vertical direction of the board-to-board connector. The relief groove 1201 provides a relief space for the elastic deformation of the elastic deformation section 332. The arrangement of the abdicating hole 101 can enable the end of the elastic deformation section 332 to be accommodated, so as to prevent the risk that the elastic deformation section 332 is accidentally pulled across Pin, and the abdicating groove 1201 can limit the end of the elastic deformation section 332 to a certain extent, and in addition, the elastic deformation section 332 can have a longer design length (arm length generally known in the art).

Referring mainly to fig. 3 to 6, the top surface portion 311 includes a top side portion 312 integrally connected, and the top side portion 312 correspondingly covers or is embedded in the upper surface of the side wall 12 near the end wall 13. The connecting portion 331 is formed by bending and extending an end edge of the side portion 32 away from the bottom wall 11, and the connecting portion 331 is located below the top side portion 312 (in this embodiment, the connecting portion 331 abuts against a lower surface of the top side portion 312). The metal frame 3 further includes an end surface portion 313 formed by bending and extending the top surface portion 311 in the insertion direction of the mating connector. The end surface portion 313 correspondingly covers or is embedded in at least a part of the outer surface of the end wall 13. The side surface portion 32 is formed by bending and extending end surface portions 313 at both ends of the board-to-board connector in the transverse direction along the longitudinal direction of the board-to-board connector, and the side surface portion 32 and the top surface side portion 312 are not integrally connected at least in part.

Referring to fig. 4 and 5, the top surface side portion 312 is bent toward the insertion direction of the mating connector at an end of the board-to-board connector in the longitudinal direction away from the top surface portion 311 to form a latching portion 3121. The side wall 12 is formed with a receiving groove 121 for receiving the locking portion 3121. One of the side surface portion 32 and the corresponding locking portion 3121 is formed with a protrusion 401, and the other is formed with a locking groove 402 engaged and fixed with the protrusion 401. In this design, the protrusion 401 is disposed on the side surface portion 32, and the locking groove 402 is disposed on the locking portion 3121, in other embodiments, the positions of the protrusion 401 and the locking groove 402 may be interchanged. The protrusion 401 is engaged with the engaging groove 402 to limit the position between the top side 312 and the side 32.

Please refer to fig. 7 and 8, which illustrate a second embodiment of a metal frame 3 of a board-to-board connector according to the present invention. It should be noted that, in fig. 7 and 8, only the specific structure of the metal frame 3 is shown, and the structure of the insulating body (not shown) matching with the metal frame 3 is not shown, it is understood that the insulating body matching with the metal frame 3 in the second embodiment can be synchronously referred to the first embodiment, and the structures of the insulating bodies in the two embodiments are basically the same. The second embodiment has the following distinctive structure with respect to the metal frame 3 in the first embodiment:

specifically, referring to fig. 7 and 8, the side surface portion 32 is bent and extended along a longitudinal direction (not shown, which may be combined with the structure of the side wall 12 in fig. 1 to 6) of the side wall (i.e. a longitudinal direction of the board-to-board connector) from an end of the side wall portion 311 toward the mating cavity 10 to form a connecting portion 321. The side wall is formed with a receiving groove (not shown in fig. 7 and 8, and therefore not numbered here, and has substantially the same structure as the receiving groove 121 in the first embodiment) for receiving the connecting portion 321. The connecting portion 321 is formed by bending and extending a top side wall 314 along a longitudinal direction of the board-to-board connector at an end edge in a plug-out direction of the mating connector, the top side wall 314 covers or is embedded in an upper surface of a position of the side wall close to an end wall (not shown, and refer to the structure of the end wall 13 in fig. 1 to 6), the connecting section 331 is formed by bending and extending a side surface portion 32 away from a bottom wall (not shown, refer to the structure of the bottom wall 11 in fig. 1 to 6), and the connecting section 331 is located below the top side wall 314.

Referring to fig. 7 and 8, one of the top side wall 314 and the top surface 311 forms a protrusion 501 (in this embodiment, the protrusion 501 is formed on the top side wall 314), and the other forms a slot 502 (in this embodiment, the slot 502 is formed on the top surface 311) matching with the protrusion 501, and the protrusion 501 and the slot 502 are locked and fixed. In the present arrangement, the matching structure of the protruding portion 501 and the slot 502 is designed to be similar to a dovetail groove matching structure, so that after the protruding portion 501 and the slot 502 are locked and fixed, the top side wall 314 and the top surface portion 311 are mutually limited and fixed.

Referring to fig. 7 and 8, the side surface portions 32 are formed by extending the top surface portion 31 toward the insertion direction of the mating connector at two ends of the board-to-board connector in the transverse direction and further extending toward the longitudinal direction of the board-to-board connector; or the metal frame 3 further includes an end surface portion 313 formed by bending and extending the end edge position of the top surface portion 311 in the longitudinal direction of the board-to-board connector toward the insertion direction of the mating connector, the end surface portion 313 correspondingly covers or is embedded in at least a part of the outer surface of the end wall of the insulating body, and the side surface portion 32 is formed by bending and extending the end surface portion 313 in the longitudinal direction of the board-to-board connector at the two end positions in the transverse direction of the board-to-board connector.

This design board has better elastic effect to the elastic wall portion 33 of plate connection, and is difficult to take place plastic deformation, and structural stability is better.

In summary, the above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the present invention should still belong to the protection scope of the present invention.

Claims

1. A board-to-board connector characterized by: the connector comprises an insulating body, a plurality of conductive terminals fixed with the insulating body and a metal frame, wherein the insulating body comprises a bottom wall, two side walls formed by upwards extending the bottom wall along the two transverse ends of a board-to-board connector and two end walls formed by upwards extending the bottom wall along the two longitudinal ends of the board-to-board connector, the bottom wall, the two side walls and the two end walls jointly define a butt joint cavity with an upward opening, a butt joint connector is inserted into the butt joint cavity, the metal frame is provided with a top surface part, a side surface part and an elastic wall part, the top surface part covers or is embedded into at least part of the upper surface of the end wall, the side surface part correspondingly covers or is embedded into at least part of the outer surface of the side wall, the elastic wall part is formed by further extending the corresponding side surface part, at least part of the elastic, the contact part can realize displacement along the plugging direction of the butting connector and can realize displacement along the transverse direction of the board-to-board connector.

2. The board-to-board connector of claim 1, wherein: the elastic wall portion comprises a connecting section and an elastic deformation section, the contact portion is formed on the elastic deformation section, the connecting section connects the elastic deformation section with the corresponding side portion, and the connecting section can elastically deform along the plugging direction of the butting connector.

3. The board-to-board connector of claim 2, wherein: the elastic deformation section extends along the plugging direction of the butting connector, the end part position of the insulating body corresponding to the elastic deformation section is provided with a yielding hole, and the end part of the elastic deformation section stretches into the yielding hole in a protruding mode.

4. The board-to-board connector according to claim 2 or 3, wherein: each the lateral wall is formed with the medial surface, two form between the medial surface of lateral wall the butt joint cavity, each the lateral wall corresponds elastic deformation section position is inwards sunken to be formed with the groove of stepping down, elastic deformation section part at least hold in the inslot of stepping down, step down the groove with the butt joint cavity is along the horizontal direction intercommunication of board to the board connector, and by medial surface place plane division is separated, the groove of stepping down sets up with the through-hole along the upper and lower direction intercommunication of board to the board connector.

5. The board-to-board connector of claim 2, wherein: the top surface portion is including the top surface lateral part of integrative connection, the top surface lateral part corresponds and covers or imbeds the lateral wall is close to the upper surface of end wall position, the linkage segment by side portion keeps away from the one end reason of diapire bends to extend and forms, the linkage segment is located the below of top surface lateral part.

6. The board-to-board connector of claim 5, wherein: the metal frame further comprises an end face portion formed by bending and extending the top face portion towards the insertion direction of the butting connector, the end face portion correspondingly covers or is embedded into at least part of the outer surface of the end wall, the side face portion is formed by bending and extending the end face portion along the longitudinal direction of the board-to-board connector, and the side face portion and the top face side portion are at least partially not integrally connected.

7. The board-to-board connector of claim 5, wherein: one end of the top surface side part, which is far away from the top surface part in the longitudinal direction of the board-to-board connector, is bent towards the insertion direction of the butting connector to form a locking part, a containing groove for containing the locking part is formed in the side wall, a convex block is formed between the side surface part and the locking part on the corresponding side, and a clamping groove which is fixedly clamped with the convex block is formed in the other side surface part.

8. The board-to-board connector of claim 2, wherein: each side face portion is bent and extended towards the direction of the butt joint cavity along the longitudinal direction of the board butt joint connector at one end far away from the top face portion to form a connecting portion, a containing groove for containing the connecting portion is formed in the side wall, the connecting portion is bent and extended along the longitudinal direction of the board butt joint connector at the end edge of the pull-out direction of the butt joint connector to form a top face side wall, the top face side wall covers or is embedded into the upper surface of the side wall close to the end wall, the connecting section is formed by bending and extending one end edge of the side face portion far away from the bottom wall, and the connecting section is located below the top face side wall.

9. The board-to-board connector of claim 8, wherein: one of the side wall of the top surface and the top surface part forms a convex part, the other forms a clamping groove matched with the convex part, and the convex part and the clamping groove are locked and fixed.

10. The board-to-board connector according to claim 8 or 9, wherein: the side surface part is formed by extending the two end positions of the top surface part in the transverse direction of the board-to-board connector towards the insertion direction of the butting connector and further extending towards the extending direction of the side wall; or the metal frame further comprises an end surface part formed by bending and extending the top surface part towards the insertion direction of the butting connector at the two end edge positions of the board-to-board connector in the longitudinal direction, the end surface part correspondingly covers or is embedded into at least part of the outer surface of the end wall, and the side surface part is formed by bending and extending the end surface part towards the longitudinal direction of the board-to-board connector at the two end positions of the board-to-board connector in the transverse direction.