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CN111769388B - Board-to-board socket - Google Patents

Board-to-board socket Download PDF

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Publication number
CN111769388B
CN111769388B CN202010547827.XA CN202010547827A CN111769388B CN 111769388 B CN111769388 B CN 111769388B CN 202010547827 A CN202010547827 A CN 202010547827A CN 111769388 B CN111769388 B CN 111769388B
Authority
CN
China
Prior art keywords
socket
board
plug
arm
longitudinal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010547827.XA
Other languages
Chinese (zh)
Other versions
CN111769388A (en
Inventor
陈小硕
石义平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Everwin Precision Technology Co Ltd
Original Assignee
Shenzhen Everwin Precision Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Everwin Precision Technology Co Ltd filed Critical Shenzhen Everwin Precision Technology Co Ltd
Priority to CN202010547827.XA priority Critical patent/CN111769388B/en
Publication of CN111769388A publication Critical patent/CN111769388A/en
Priority to JP2022554404A priority patent/JP7449401B2/en
Priority to PCT/CN2020/141931 priority patent/WO2021253801A1/en
Priority to US17/937,189 priority patent/US20230036015A1/en
Application granted granted Critical
Publication of CN111769388B publication Critical patent/CN111769388B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70Coupling devices
    • H01R12/71Coupling devices for rigid printing circuits or like structures
    • H01R12/712Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/716Coupling device provided on the PCB
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02Contact members
    • H01R13/22Contacts for co-operating by abutting
    • H01R13/24Contacts for co-operating by abutting resilient; resiliently-mounted
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

The utility model provides a board to board socket, includes socket body, socket terminal and socket reinforcement, the socket body include the diapire, from socket lateral wall that the vertical both ends of diapire upwards bulge formed, form in socket guide portion at the horizontal both ends of socket body reaches from the bottom wall upwards bulge forms island portion, socket guide portion includes plug guide portion receiving chamber, is located the vertical periphery wall of the horizontal outside of plug guide portion receiving chamber and is located a pair of horizontal periphery wall of the vertical both sides of plug guide portion receiving chamber, the socket reinforcement include cover in the main part of vertical periphery wall surface, from the vertical both sides of main part extend along the horizontal direction cover in the horizontal periphery wall outside cover portion, from the horizontal periphery wall cover portion top is turned over the elasticity arm and the protection part that extend formation inwards. The application can effectively protect the contact arm from being damaged.

Description

Board-to-board socket
Technical Field
The present application relates to the field of electrical connectors, and more particularly to a board-to-board socket.
Background
Board-to-board connector assemblies are widely used in consumer electronics applications such as smartphones, tablet computers, wearable devices, etc. The current smart phone and the wearable equipment are extremely high in space requirements, the sizes of components are also reduced, the lowest height of a wire board to board manufacturer after the board to board plug is matched with a socket is 0.6mm, the distance between terminals is 0.25mm, the connector is tiny, high requirements are provided for the structural strength of the connector, and compared with the traditional board to board connector assembly, the current smart phone is integrated in large-scale functions, high requirements are provided for current carrying capacity, such as the carrying capacity of a liquid crystal screen and the like for current transmission, and the design of the traditional board to board connector assembly cannot adapt to the requirements of the current market for strength and current transmission.
Disclosure of Invention
In view of this, it is necessary to provide a board-to-board socket, which ensures that the socket reinforcement can be well protected from damage of the resilient arm portion on the basis of simple structure and good mass productivity.
In order to solve the technical problems, the application provides a board-to-board socket, which comprises a socket body, socket terminals and a socket reinforcing member, wherein the socket body comprises a bottom wall, socket side walls formed by protruding upwards from two longitudinal ends of the bottom wall, socket guide parts formed at two transverse ends of the socket body and island parts formed by protruding upwards from the bottom wall, the socket guide parts comprise a plug guide part receiving cavity, a longitudinal peripheral wall positioned at the transverse outer side of the plug guide part receiving cavity and a pair of transverse peripheral walls positioned at the two longitudinal sides of the plug guide part receiving cavity, the socket reinforcing member comprises a main body part covered on the surface of the longitudinal peripheral wall, a transverse peripheral wall covering part bent from two longitudinal sides of the main body part and extending in the transverse direction to cover the outer side of the transverse peripheral wall, and an elastic arm part and a protection part formed by extending upwards from the top end of the transverse peripheral wall covering part towards one side of the plug guide part receiving cavity, the elastic arm part comprises an inclined connecting arm formed by bending downwards from the transverse peripheral wall covering part and extending obliquely, and a contact protrusion formed by bending from the vertical connecting arm part and the inclined arm part towards one side towards one end of the contact guide part.
Preferably, the upper end of the contact arm portion is in a cambered surface structure, and the inclined connecting arm is consistent with the inclined angle of the protection portion.
Preferably, a gap exists between the guard portion and the contact arm portion, and the guard portion is located longitudinally outside the contact arm portion, as viewed from above.
Preferably, the transverse peripheral wall of the socket body comprises a supporting shoulder and an elastic avoidance part which is positioned on the inner side of the longitudinal direction of the supporting shoulder and communicated with the plug guide part receiving cavity, the elastic arm part is folded from the top end of the covering part of the transverse peripheral wall, spans the supporting shoulder and enters the elastic avoidance part, and the contact convex part is positioned in the plug guide part receiving cavity.
Preferably, the protection part is folded from the top end of the transverse peripheral wall covering part to cross the supporting shoulder part and then enter the upper part of the elastic avoidance part, and the contact arm part is positioned below the inclined extending direction of the protection part.
Preferably, a mounting step portion is formed on the outer side in the longitudinal direction of the support shoulder portion, the lateral peripheral wall covering portion extends on the mounting step portion, and the support shoulder portion becomes thinner gradually from bottom to top, including a thicker portion at the lower portion and a thinner portion at the top portion.
Preferably, the thinner portion is provided with a larger inclined surface facing the plug guide portion receiving cavity, the free end of the protecting portion is supported on the larger inclined surface, the thinner portion is provided with a smaller inclined surface at one end of the outer side in the longitudinal direction, and the smaller inclined surface is used for avoiding bending radian of the inclined connecting arm and the protecting portion.
Preferably, when a plug is inserted into the socket, the plug includes a plug reinforcement inserted into the plug guide receiving cavity, the plug reinforcement contacts and presses the protecting part and the inclined connecting arm along both ends in the longitudinal direction, the protecting part is supported by the supporting shoulder, and when the lower end of the inclined connecting arm is pressed by the plug reinforcement, the contact arm is forced to deform toward the protecting part to reduce a gap between the contact arm and the protecting part in the vertical projection direction, so that the plug reinforcement is smoothly inserted into and electrically contacted with the contact protrusion.
Preferably, the two lateral ends of the island portion are provided with protected portions having horizontal positions lower than the island portion, the socket stiffener further comprises a central guide portion bent downward from the lateral inner side of the main body portion and extending to the protected portion and covering the protected portion, the central guide portion comprises a first central guide arm bent downward from the lateral inner side of the main body portion, a supporting bottom arm bent from the bottom of the first central guide arm and extending to one side of the protected portion, a second central guide arm extending obliquely upward from the supporting bottom arm to the upper side of the protected portion, and a clamping end bent downward from the free end of the second central guide arm and clamped into the protected portion.
Preferably, the two longitudinal ends of the longitudinal peripheral wall near to one side of the plug guide portion receiving cavity are provided with step portions, the longitudinal width of the upper end of the first central guide arm is larger than that of the lower end of the first central guide arm, and the bottoms of the two longitudinal ends of the upper end of the first central guide arm are correspondingly located above the step portions.
According to the board-to-board socket, the contact arm parts of the elastic arm parts extend to one side of the protection part along the transverse direction, and when the plug reinforcing piece is inserted, the inclined connecting arms are pressed to drive the contact arm parts to be close to one side of the protection part along the longitudinal direction so as to prevent the contact arm parts from being damaged by the plug.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application.
Fig. 1-11 are drawings of a board-to-board connector assembly of the present application.
Fig. 1 is a combination diagram of a board-to-board connector assembly according to an embodiment.
Fig. 2 is a cross-sectional view taken along the line A-A shown in fig. 1.
Fig. 3 is a perspective combined view of a pair of board plugs according to an embodiment.
Fig. 4 is a perspective view and a partial enlarged view of a plug body of a pair of board plugs according to an embodiment.
Fig. 5 is a perspective view of a plug reinforcement of a pair of board-to-board plugs of the embodiment.
Fig. 6 is another angled perspective view of a plug reinforcement member of a board-to-board plug of an embodiment.
Fig. 7 is a perspective view of a board-to-board socket according to an embodiment.
Fig. 8 is a perspective view and a partial enlarged view of a socket body of a board-to-board socket according to an embodiment.
Fig. 9 is a perspective view of a socket stiffener of a board-to-board socket of an embodiment.
Fig. 10 is a top view of a socket stiffener of a board-to-board socket of an embodiment.
Fig. 11 is a sectional view taken along the broken line B-B shown in fig. 1.
Fig. 12 is a perspective view of a socket stiffener of a board-to-board socket of the second embodiment.
Fig. 13 is a top view of a socket stiffener of a board-to-board socket of the second embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings.
The direction definition of the present application is right (or lateral direction) with the X direction shown in fig. 1 as the left-right direction, front (or longitudinal direction) with the Y direction as the front-back direction, and upper (i.e., vertical) with the Z direction as the up-down direction.
Example 1
Referring to fig. 1, the board-to-board connector assembly of the present application includes a plug a mounted on a printed circuit board and a socket B mounted on another printed circuit board, wherein the plug a and the socket B are fastened and connected with each other.
The plug a includes a plug body 10, a plurality of plug terminals 20 formed in the plug body 10, and plug reinforcements 30 fixed to both lateral ends of the plug body 10. The socket B includes a socket body 40, socket terminals 50 mounted on the socket body 40, and socket reinforcements 60 mounted and fixed on both lateral ends of the socket body 40.
Referring to fig. 2 to 6, the plug body 10 of the plug a includes a top wall 11, a pair of plug side walls 12 formed to extend downward from both sides of the top wall 11 in the longitudinal direction, plug guide portions 14 formed at both ends of the plug body 10 in the transverse direction, and island receiving cavities 13 formed between the top wall 11, the pair of plug side walls 12 and the plug guide portions 14.
The plug terminals 20 are integrally formed on the pair of plug side walls 12 in two rows in the lateral direction, and the plug guide 14 includes a bottom surface 141, a longitudinal outer side surface 142, a pair of lateral outer side surfaces 143, and a slope 144 facing the island receiving cavity 13. The longitudinal outer side 142 is provided with a first notch 1421, and the lateral outer side 143 includes two longitudinally protruding protrusions 1431, 1432, a second notch 1433 located between the two protrusions 1431, 1432, and a third notch 1434 located between the protrusion 1432 and the plug sidewall 12. The inclined surface 144 is formed with an inclined surface 1441 that is formed upward from the bottom surface 141 to the top wall 11 and a catching hole 1442 that is formed by being recessed upward from the inclined surface 1441 on a side near the bottom surface 141.
The plug reinforcement 30 includes a cover base 31 which covers the bottom surface 141 of the plug guide 14 in the longitudinal direction, a longitudinal outer side cover 35 and a longitudinal inner side cover 34 which are respectively covered on the longitudinal outer side 142 and are engaged in the engagement hole 1442 and formed by bending and extending upward from both ends of the cover base 31 in the transverse direction, and a transverse outer side cover 33 which is covered outside the transverse outer side 143 in the transverse direction and formed by bending and extending upward from both ends of the cover base 31 in the longitudinal direction. The longitudinal outer side cover 35 is engaged with the first notch 1421.
The lateral outer side cover 33 includes a contact portion 331 that is snapped into the second gap 1433, and a solder leg 332 that is bent from the top of one end of the lateral outer side cover 33 away from the longitudinal outer side cover 35 to the longitudinal outer side, where the contact portion 331 of the lateral outer side cover 33 is snapped into the second gap 1433, and the solder leg 332 is snapped into the third gap 1434 and then is bent to the longitudinal outer side, and the lateral outer side cover 33 is further provided with a bayonet 333 to be snapped into the periphery of the bump 1432, so as to enhance the holding force between the plug reinforcement 30 and the plug guide 14.
Referring to fig. 2, the plug terminal 20 includes a plug terminal leg 24 extending from the upper surface of the top wall 11 in the longitudinal direction out of the top wall 11, a plug terminal first contact portion 22 bent from the plug terminal leg 24 along the surface of the top wall 11 to the inner side surface of the plug side wall 12, and a plug terminal second contact portion 23 bent reversely from the lower end of the plug terminal first contact portion 22 to the outer side surface of the plug side wall 12. The second contact portion 23 of the plug terminal is provided with a groove structure.
With continued reference to fig. 1,2, 7 and 8, the socket body 40 of the socket B of the board-to-board connector assembly of the present application includes a bottom wall 41, a pair of socket side walls 42 extending upward from both sides of the bottom wall 41 in the longitudinal direction, an island 45 protruding upward from the bottom wall 41 between the pair of socket side walls 42, socket guide portions 44 formed at both lateral ends of the socket body 40, and a plug side wall receiving cavity 43 formed between the island 45 and the pair of socket side walls 42.
The bottom wall of the socket body 40 is provided with a plurality of terminal slots 46 from bottom to top, the socket terminals 50 are assembled in the terminal slots 46 upwards, the socket terminals 50 comprise supporting arm portions 51 extending in the terminal slots 46 at the bottom wall 41 and exposed out of the bottoms of the terminal slots 46, socket terminal second contact portions 52 formed by bending and extending from the longitudinal outer sides of the supporting arm portions 51 and located on the longitudinal side surfaces of the island portions 45 and facing the socket side walls 42, socket terminal first contact portions 53 formed by bending and extending from the longitudinal inner sides of the supporting arm portions 51 and located on the longitudinal side surfaces of the socket side walls 42, holding portions 54 formed by bending and extending from the top ends of the first contact portions 53 reversely, and soldering legs 55 formed by bending and extending from the lower ends of the holding portions 54 vertically and extending to the longitudinal outer sides of the bottom wall 41 of the socket body 40.
When the plug a is mated with the socket B, the island 45 is received in the island receiving cavity 13 of the plug a, the plug sidewall 12 of the plug a is received in the plug sidewall receiving cavity 43 of the socket B, and the plug guide 14 is guided into the socket guide 44. The plug terminal 20 is engaged between the first and second contact portions 53, 52 of the socket terminal 50, and the first and second contact portions 22, 23 of the plug terminal 20 are in electrical contact with the first and second contact portions 53, 52 of the socket terminal 50, respectively.
Referring to fig. 8, the two lateral ends of the island 45 are provided with a protected portion 451 toward the socket guide portion 44, and the protected portion 451 includes a table portion 453 having a horizontal plane lower than the island 45, an avoidance slope 452 formed obliquely downward from the table portion 453, a clamping groove 454 formed by downwardly recessing from the table portion 453, and a communication notch 455 formed laterally outward from the clamping groove 454 and communicating with the avoidance slope 452.
The socket guide 44 includes peripheral walls 441, 442 and a plug guide receiving cavity 443 located between the peripheral walls 441, 442. The outer peripheral walls 441, 442 include a longitudinal outer peripheral wall 441 and a pair of lateral outer peripheral walls 442 connected to both ends of the longitudinal outer peripheral wall 441, the lateral outer peripheral walls 442 being adjacent to the socket side walls 42.
The plug guide receiving cavity 443 has a through hole 4431 formed therethrough in the up-down direction corresponding to the lateral extension of the island 45, and the through hole 4431 extends up to the lower end of the longitudinal peripheral wall 441. The outer and inner sides of the longitudinal peripheral wall 441 are respectively provided with a first and a second extending grooves 4411, 4412, and the second extending grooves 4412 are communicated with the through hole 4431. The lateral peripheral wall 442 is formed with a support shoulder 4421 protruding upward from the middle thereof, and the outer periphery of the support shoulder 4421 is provided with a mounting step 4425 extending in the lateral direction and positioned longitudinally outward of the support shoulder 4421, and an elastic escape 4424 positioned longitudinally inward of the support shoulder 4421. The support shoulder 4421 tapers from bottom to top to form a thicker portion 4422 and a thinner portion 4423, the thinner portion 4423 tapers from bottom to top, the thinner portion 4423 forms a larger inclined surface on the plug guide portion receiving cavity 443 side, and the thinner portion 4423 forms a smaller inclined surface on the outer longitudinal end. The longitudinal outer circumferential wall 441 is provided with stepped portions 4413 at longitudinal ends thereof located inside the plug guide portion receiving cavity 443, respectively. The mounting step 4425 is partially penetrated in a vertical direction to form a third extension groove 4428.
With continued reference to fig. 9 to 11, the socket stiffener 60 includes a main body portion 61 covering the top surface of the longitudinal peripheral wall 441 in the longitudinal direction, a longitudinal peripheral wall covering portion 62 bent downward from the lateral outer end of the main body portion 61 and extending into the first extending groove 4411, a central guide portion 63 bent downward from the lateral inner side of the main body portion 61 and extending to the protected portion 451 at the lateral end of the island 45, a lateral peripheral wall covering portion 64 bent downward from the longitudinal both ends of the main body portion 61 and extending along the mounting step portion 4425 and located on the longitudinal outer side of the lateral peripheral wall 442, a protecting portion 66 bent from the top end of the lateral peripheral wall covering portion 64 toward the plug guide receiving cavity 443 and located on the supporting shoulder 4421, and a resilient arm portion 65 bent from the top of the lateral peripheral wall covering portion 64 toward the plug guide receiving cavity 443 and extending to the resilient dodging portion 4424.
The edge of the protecting portion 66 on the side of the plug guide receiving cavity 443 is formed to extend obliquely downward to guide the insertion of the plug reinforcement 30. The resilient arm portion 65 includes an inclined connecting arm 651 formed by bending from the top of the lateral outer peripheral wall covering portion 64 along the support shoulder 4421 toward the plug guide receiving cavity 443, a contact arm portion 652 formed by extending vertically downward from the free end of the inclined connecting arm 651, and a contact protrusion 653 formed by punching from the contact arm portion 652 toward the plug guide receiving cavity 443. The contact arm portion 652 extends in the lateral direction to the side of the protection portion 66 to form a strip-like structure extending in the lateral direction. The contact protrusion 653 is located in the plug guide receiving cavity 443, with a gap between the guard 66 and the contact arm 652, as viewed from above, without overlapping. The inclined connecting arm 651 maintains the same inclination angle, and the protecting portion 66 and the elastic arm portion 65 are independently formed by bending and extending from the lateral outer peripheral wall covering portion 64.
The free ends of the longitudinal peripheral wall covering portions 62 are fixed to the printed circuit board as fillets, and the bottom ends of the transverse peripheral wall covering portions 64 are extended to the printed circuit board as fillets through the third extension grooves 4428 for solder fixation.
The central guide portion 63 includes a first central guide arm 631 extending downward from the inner side of the main body portion 61 in the second extending groove 4412, a supporting bottom arm 632 extending from the bottom of the first central guide arm 631 to the bottom of the protected portion 451 on both sides of the island 45 along the through hole 4431, a second central guide arm 634 extending obliquely upward from the supporting bottom arm 632 to the upper side of the protected portion 451, and a locking end 635 extending downward from the free end of the second central guide arm 634 and locking into the locking groove 454. The first and second central guide arms 631, 634 serve to guide insertion of the plug reinforcement 30 and protect the longitudinal peripheral wall 441 of the socket body 40 and the protected portion 451 at both lateral ends of the island 45. The longitudinal outside surface covering portion 35 and the longitudinal inside surface covering portion 34 of the plug reinforcement 30 are guided by the first and second center guide arms 631, 634, respectively, and enter between the first and second center guide arms 631, 634 above the support bottom arm 632, but in the inserted state, the longitudinal outside surface covering portion 35 and the longitudinal inside surface covering portion 34 are not in electrical contact with the first and second center guide arms 631, 634. During the insertion process, the supporting bottom arm 632 is pressed and the mounted pcb generates supporting force to make the first and second central guide arms 631, 634 have a certain elasticity.
The first central guide arm 631 has an upper end with a longitudinal width greater than that of the lower end and has stepped portions 4413 formed on both sides of the upper end of the first central guide arm 631 to abut against the inner side of the longitudinal peripheral wall 441. The wider upper end bend of the first central guide arm 631 may provide increased guidance for the plug stiffener 30 to avoid insertion damage.
In a natural state, the contact arm 652 of the elastic arm 65 is located on the elastic relief 4424 and has a deformation gap with the inner side surface of the support shoulder 4421, and when the elastic arm 65 is longitudinally pressed, the contact protrusion 653 of the elastic arm 65 deforms in the deformation gap.
When the plug a is inserted, the lateral outer surface covering portion 33 of the plug reinforcement 30 contacts the protection portion 66, the inclined connecting arm 651 of the elastic arm portion 65, and the upper end of the first central guide arm 631, and when the plug reinforcement 30 is continuously pressed down, the contact protrusion 653 is pressed along the longitudinal outer side, so that the contact arm portion 652 is elastically deformed toward the inner wall surface of the support shoulder 4421 in the elastic relief portion 4424. In this process, when the plug reinforcement 30 contacts and longitudinally presses the protecting portion 66 and the inclined connecting arm 651, the portion of the protecting portion 66 extending to the plug guide receiving cavity 443 side is short and supported by the supporting shoulder 4421 with little elastic deformation, and when the lower end of the inclined connecting arm 651 is longitudinally pressed, the contact arm 652 is gradually forced to deform toward the supporting shoulder 4421, so that the outer side of the contact arm 652 gradually approaches the protecting portion 66 and the gap therebetween is reduced as viewed from the top down, avoiding the breakage of the contact arm 652 when the plug reinforcement 30 is inserted into the contact arm 652. Meanwhile, the upper ends of the contact arm portions 652 are arc-shaped to better guide the inserted plug reinforcement 30 without crushing the contact arm portions 652. The guard 66 is located laterally outward of the resilient arm 65.
In the board-to-board socket of the present application, the contact arm portion 652 of the elastic arm portion 65 is extended to the side of the protecting portion 66 in the lateral direction, and when the plug reinforcement 30 is inserted, the contact arm portion 652 is pushed by the inclined connecting arm 651 to approach the side of the protecting portion 66 in the longitudinal direction, so that the contact arm portion 652 is prevented from being damaged by the plug.
Example two
With continued reference to fig. 12 and 13, a socket stiffener 60 according to the second embodiment is shown.
In comparison with the first embodiment, the second embodiment is mainly different from the first embodiment in that the protection portion 66 is integrally formed by bending the top of the lateral outer peripheral wall covering portion 64 with the inclined connecting arm 651 of the resilient arm portion 65, and the protection portion 66 is divided into a first protection portion 661 and a second protection portion 662 in the lateral direction. The elastic arm portion 65 is formed to extend obliquely downward from the first protection portion 661, and the elastic arm portion 65 includes an inclined connecting arm 651 extending obliquely from the lower end of the first protection portion 661 to the plug guide portion receiving cavity 443, a contact arm portion 652 formed to be bent vertically downward from the lower end of the inclined connecting arm 651, and a contact protrusion 653 formed to be pressed from the contact arm portion 652 toward the plug guide portion receiving cavity 443. The contact arm portion 652 extends to the side of the second guard portion 662 in the lateral direction and is split with the second guard portion 662 to form a separation groove 654.
The technical effect achieved by the second embodiment is the same as that achieved by the first embodiment, and the preferred embodiment is the first embodiment.
The printed circuit board to which the plug a or the socket B is attached in the present specification is not limited to a circuit board, and may be any board as long as it corresponds to an object provided with a current transmission line.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims (8)

1. The socket body comprises a bottom wall, socket side walls formed by protruding upwards from two longitudinal ends of the bottom wall, socket guide parts formed at two transverse ends of the socket body and island parts formed by protruding upwards from the bottom wall, wherein the socket guide parts comprise plug guide part receiving cavities, longitudinal peripheral walls positioned at the transverse outer sides of the plug guide part receiving cavities and a pair of transverse peripheral walls positioned at the two longitudinal sides of the plug guide part receiving cavities;
a gap exists between the protecting portion and the contact arm portion, the protecting portion being located longitudinally outside the contact arm portion, as viewed from the top down;
The transverse peripheral wall of the socket body comprises a supporting shoulder and an elastic avoiding part which is positioned on the longitudinal inner side of the supporting shoulder and communicated with the plug guide part receiving cavity, the elastic arm part is folded from the top end of the covering part of the transverse peripheral wall, spans the supporting shoulder and enters the elastic avoiding part, and the contact convex part is positioned in the plug guide part receiving cavity;
When a plug is inserted into the socket, the plug comprises a plug reinforcement inserted into the plug guide receiving cavity, and when the plug reinforcement contacts and longitudinally presses the protecting part and the inclined connecting arm, the protecting part is supported by the supporting shoulder part, and the elastic deformation is very small.
2. The board-to-board socket of claim 1, wherein the upper ends of the contact arm portions are of a cambered surface structure, and the inclined connecting arms are in agreement with the inclination angles of the protecting portions.
3. The board-to-board socket according to claim 1, wherein the protecting portion is folded over the supporting shoulder portion from the top end of the lateral peripheral wall covering portion and then enters above the elastic escape portion, and the contact arm portion is located below the oblique extending direction of the protecting portion.
4. The board-to-board socket of claim 3, wherein a mounting step portion is formed on a longitudinally outer side of the support shoulder portion, the lateral peripheral wall covering portion extends over the mounting step portion, and the support shoulder portion is tapered from bottom to top, including a thicker portion at a lower portion and a thinner portion at a top portion.
5. The board-to-board socket of claim 4, wherein a side of the thinner portion facing the plug guide receiving cavity is provided with an inclined surface having a larger angle, a free end of the protecting portion is supported on the larger inclined surface, an end of the thinner portion located on a longitudinal outside is provided with a smaller inclined surface for avoiding bending radian of the inclined connecting arm and the protecting portion.
6. The board-to-board socket of claim 1, wherein the header reinforcement member contacts and presses the protecting portion and the inclined connecting arm along both longitudinal ends, the protecting portion being supported by the supporting shoulder portion, and the lower end of the inclined connecting arm being pressed by the header reinforcement member, the contact arm portion is forced to deform toward the protecting portion to reduce a gap therebetween in a vertical projection direction, thereby allowing the header reinforcement member to be smoothly inserted into and electrically contacted with the contact protrusion.
7. The board-to-board socket according to claim 1, wherein the island is provided at both lateral ends thereof with a protected portion having a lower horizontal position than the island, the socket reinforcing member further comprises a central guide portion bent downward from the lateral inner side of the main body portion and extending to the protected portion and covering the protected portion, the central guide portion comprising a first central guide arm bent downward from the lateral inner side of the main body portion, a support bottom arm bent to extend from the bottom of the first central guide arm to one side of the protected portion, a second central guide arm extending obliquely upward from the support bottom arm to above the protected portion, and a snap-in end bent downward from the free end of the second central guide arm and snapped into the protected portion.
8. The board-to-board socket of claim 7, wherein the longitudinal peripheral wall has stepped portions at both ends thereof in a longitudinal direction near one side of the plug guide receiving cavity, the upper end of the first center guide arm has a longitudinal width greater than that of the lower end of the first center guide arm, and the bottoms of both ends of the upper end of the first center guide arm are correspondingly located above the stepped portions.
CN202010547827.XA 2020-06-16 2020-06-16 Board-to-board socket Active CN111769388B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202010547827.XA CN111769388B (en) 2020-06-16 2020-06-16 Board-to-board socket
JP2022554404A JP7449401B2 (en) 2020-06-16 2020-12-31 board to board socket
PCT/CN2020/141931 WO2021253801A1 (en) 2020-06-16 2020-12-31 Board-to-board socket
US17/937,189 US20230036015A1 (en) 2020-06-16 2022-09-30 Board-to-board socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010547827.XA CN111769388B (en) 2020-06-16 2020-06-16 Board-to-board socket

Publications (2)

Publication Number Publication Date
CN111769388A CN111769388A (en) 2020-10-13
CN111769388B true CN111769388B (en) 2024-07-16

Family

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