WO2021253801A1 - 板对板插座 - Google Patents

板对板插座 Download PDF

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Publication number
WO2021253801A1
WO2021253801A1 PCT/CN2020/141931 CN2020141931W WO2021253801A1 WO 2021253801 A1 WO2021253801 A1 WO 2021253801A1 CN 2020141931 W CN2020141931 W CN 2020141931W WO 2021253801 A1 WO2021253801 A1 WO 2021253801A1
Authority
WO
WIPO (PCT)
Prior art keywords
socket
board
arm
longitudinal
plug
Prior art date
Application number
PCT/CN2020/141931
Other languages
English (en)
French (fr)
Inventor
陈小硕
石义平
Original Assignee
深圳市长盈精密技术股份有限公司
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
Priority claimed from CN202021116910.3U external-priority patent/CN213401574U/zh
Priority claimed from CN202010547827.XA external-priority patent/CN111769388A/zh
Application filed by 深圳市长盈精密技术股份有限公司 filed Critical 深圳市长盈精密技术股份有限公司
Priority to JP2022554404A priority Critical patent/JP7449401B2/ja
Publication of WO2021253801A1 publication Critical patent/WO2021253801A1/zh
Priority to US17/937,189 priority patent/US20230036015A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural 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
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011—Locking or fixing a connector to a PCB
    • H01R12/7017—Snap means
    • H01R12/7023—Snap means integral with the coupling device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural 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
    • H01R12/70—Coupling devices
    • H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
    • H01R12/7011—Locking or fixing a connector to a PCB
    • H01R12/707—Soldering or welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural 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
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling 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
    • H01R12/716—Coupling device provided on the PCB
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural 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
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures

Definitions

  • This application relates to the field of connectors, in particular to a board-to-board socket.
  • Board-to-board connector components are widely used in consumer electronics, such as smart phones, tablet computers, wearable devices, etc. At present, smart phones and wearable devices have extremely high space requirements, and the size of components is also shrinking.
  • the minimum height of the board-to-board plugs and sockets of the first-line board-to-board manufacturers has reached an ultra-low height of 0.6mm.
  • the spacing has also reached a distance of 0.25mm.
  • Such a small connector puts forward higher requirements on the structural strength of the connector.
  • the large-scale function integration of existing smart phones is Current carrying capacity puts forward higher requirements. For example, LCD screens require a current transmission capacity of 5A.
  • the traditional board-to-board connector component design can no longer meet the current market's requirements for strength and current transmission.
  • the present application provides a board-to-board socket, including a socket body, socket terminals, and socket reinforcements.
  • the socket body includes a bottom wall and a socket protruding upward from both longitudinal ends of the bottom wall. Side walls, socket guides formed at both lateral ends of the socket body, and islands protruding upward from the bottom wall.
  • the socket guide includes a plug guide receiving cavity and is located at the lateral outside of the plug guide receiving cavity
  • the socket reinforcement includes a main body covering the surface of the longitudinal outer peripheral wall, and is folded from both longitudinal sides of the main body
  • the lateral outer circumferential wall covering portion bent and extending in the lateral direction to cover the lateral outer circumferential wall
  • the elastic arm portion formed by folding and extending from the top end of the lateral outer circumferential wall covering portion toward the plug guide portion receiving cavity side and
  • the elastic arm part includes an inclined connecting arm formed by bending from the lateral outer peripheral wall covering part and extending obliquely downward, a contact arm part formed by vertical bending from the inclined connecting arm, and a contact arm formed from the inclined connecting arm.
  • the arm part faces the contact protrusion formed by stamping of the plug guide part receiving cavity, and one end of the contact arm part extends to one side of the protection part in the
  • the present application also provides a board-to-board socket, including a socket body, a socket terminal, and a socket reinforcement. Socket side walls, socket guides formed on both lateral ends of the socket body, and islands protruding upward from the bottom wall.
  • the socket guide includes a plug guide receiving cavity, which is located laterally The outer longitudinal outer peripheral wall and a pair of transverse outer peripheral walls located on both longitudinal sides of the plug guide portion receiving cavity
  • the socket reinforcement includes a main body covering the surface of the longitudinal outer peripheral wall, from both longitudinal sides of the main body Bent and extend in the transverse direction to cover the transverse outer peripheral wall covering part of the transverse outer peripheral wall and the protective part formed by folding and extending from the top of the transverse outer peripheral wall covering part toward the plug guide part receiving cavity side, so
  • the protection part respectively includes a first protection part and a second protection part in the transverse direction.
  • the first protection part continues to extend obliquely downward to form an elastic arm part
  • the elastic arm part includes an inclined extension formed from the first protection part obliquely.
  • a connecting arm a contact arm portion formed by vertical bending from the inclined connecting arm, and a contact protrusion formed by stamping from the contact arm portion toward the plug guide portion receiving cavity, one end of the contact arm portion extending in the transverse direction To the side of the second protection part, when viewed from above, there is a partition groove between the second protection part and the contact arm part.
  • the board-to-board socket of the application extends the contact arm of the elastic arm to the side of the protection part in the transverse direction, and when the plug reinforcement is inserted, the inclined connecting arm is squeezed to drive the contact arm
  • the part is close to one side of the protection part in the longitudinal direction to prevent the contact arm part from being damaged by the plug.
  • the board-to-board socket of the present application is formed by bending and extending the first and second protection portions in the lateral direction at the top end of the lateral outer peripheral wall covering portion toward the plug guide portion receiving cavity, and then continues from the first protection portion Extend to form an elastic arm portion, the contact arm portion of the elastic arm portion and the first protection portion are connected by an inclined connecting arm, and the contact arm portion extends to one side of the second protection portion and is connected to the second protection portion.
  • Separating grooves are formed between the protection parts to ensure sufficient elastic force of the contact arm part and to be protected by the first and second protection parts and not easy to be damaged by insertion.
  • FIGS 1 to 11 are drawings of the board-to-board connector assembly of this application.
  • Figure 1 is an assembly diagram of a board-to-board connector assembly of the first embodiment
  • Figure 2 is a cross-sectional view taken along the dashed line A-A shown in Figure 1;
  • Figure 3 is a three-dimensional assembly diagram of a pair of board plugs according to the embodiment.
  • Figure 4 is a perspective view and a partial enlarged view of the plug body of a pair of board plugs according to the embodiment
  • Figure 5 is a perspective view of a plug reinforcement of a board-to-board plug according to the first embodiment
  • Fig. 6 is a perspective view of another angle of the plug reinforcement of the board-to-board plug according to the first embodiment
  • Figure 7 is a three-dimensional assembly diagram of a board-to-board socket according to the first embodiment
  • Figure 8 is a perspective view and a partial enlarged view of the socket body of the board-to-board socket of the first embodiment
  • Figure 9 is a perspective view of the socket reinforcement of the board-to-board socket of the first embodiment
  • Figure 10 is a top view of the socket reinforcement of the board-to-board socket of the first embodiment
  • Fig. 11 is a cross-sectional view taken along the broken line B-B shown in Fig. 1.
  • Figure 12 is a perspective view of the socket reinforcement of the board-to-board socket of the second embodiment
  • Figure 13 is a top view of the socket reinforcement of the board-to-board socket of the second embodiment.
  • the direction of this application is defined with the X direction shown in Fig. 1 being the right (or horizontal direction) of the left and right direction, the Y direction being the front (or longitudinal direction) of the front-to-back direction, and the Z direction being the upper side of the up-down direction (ie the vertical direction) ).
  • 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.
  • the plug A and the socket B are mutually connected. Buckle connection.
  • the plug A includes a plug body 10, a plurality of plug terminals 20 formed in the plug body 10, and plug reinforcement members 30 fixed to the two lateral ends of the plug body 10.
  • the socket B includes a socket body 40, socket terminals 50 installed on the socket body 40, and socket reinforcement members 60 installed and fixed on both lateral ends of the socket body 40.
  • the plug body 10 of the plug A includes a top wall 11, a pair of plug side walls 12 extending downwardly from both longitudinal sides of the top wall 11, and formed on the plug body 10
  • the plug guide portions 14 at both lateral ends and the island receiving cavity 13 formed between the top wall 11, a pair of plug side walls 12 and the plug guide portion 14.
  • the plug terminals 20 are integrally formed on a pair of plug side walls 12 in two rows in the transverse direction.
  • the plug guide portion 14 includes a bottom surface 141, a longitudinal outer side surface 142, a pair of lateral outer side surfaces 143 and faces the island.
  • the inclined surface 144 of the receiving cavity 13 The longitudinal outer side surface 142 is provided with a first notch 1421, and the lateral outer side surface 143 includes two longitudinally protruding protrusions 1431, 1432 and a second notch 1433 located between the two protrusions 1431, 1432 and A third gap 1434 between the bump 1432 and the side wall 12 of the plug.
  • the inclined surface 144 is formed with an inclined surface 1441 from the bottom surface 141 upward to the top wall 11 and a locking hole 1442 formed upwardly from the inclined surface 1441 on the side close to the bottom surface 141.
  • the plug reinforcement 30 includes a cover base 31 covering the bottom surface 141 of the plug guide 14 in the longitudinal direction, and a cover base 31 formed by bending upwards from both lateral ends of the covering base 31 and covering the longitudinal outer surface.
  • the side surface 142, the longitudinal outer surface covering portion 35 and the longitudinal inner surface covering portion 34 that are clamped into the card hole 1442, and the covering base 31 are formed by bending upwards from both longitudinal ends of the covering base 31 to cover the lateral outer surface.
  • the lateral outer surface covering portion 33 outside the lateral surface 143.
  • the longitudinal outer surface covering portion 35 is locked into the first gap 1421.
  • the lateral outer side covering portion 33 includes a contact portion 331 that is snapped into the second gap 1421, and the top of one end away from the longitudinal outer side covering portion 35 from the lateral outer side covering portion 33 is bent vertically to the longitudinal outer side.
  • the welding foot 332 of the lateral outer surface covering portion 33 is clamped into the second notch 1433, and the welding foot 332 is clamped into the third notch 1434 and then vertically bent to the outside.
  • the lateral outer surface covering portion 33 is further provided with a bayonet 333 to be inserted into the outer periphery of the protrusion 1432 to enhance the holding force between the plug reinforcement 30 and the plug guide portion 14.
  • the plug terminal 20 includes a plug terminal soldering foot 24 extending from the upper surface of the top wall 11 in the longitudinal direction outside the top wall 11, and a soldering foot 24 from the plug terminal soldering foot 24.
  • the surface of the top wall 11 is bent to the plug terminal first contact portion 22 on the inner side of the plug side wall 12, and the lower end of the plug terminal first contact portion 22 is reversely bent and extends on the plug side wall 12
  • the second contact portion 23 of the plug terminal is provided with a groove structure.
  • the socket body 40 of the socket B of the board-to-board connector assembly of the present application includes a bottom wall 41 extending upwardly from both longitudinal sides of the bottom wall 41 A pair of socket side walls 42, an island portion 45 protruding upward from the bottom wall 41 between the pair of socket side walls 42, a socket guide portion 44 formed at both lateral ends of the socket body 40 and forming A plug side wall receiving cavity 43 between the island portion 45 and a pair of the socket side walls 42.
  • the bottom wall of the socket body 40 is provided with a plurality of terminal grooves 46 from bottom to top, the socket terminals 50 are assembled in the terminal grooves 46 upward, and the socket terminals 50 include terminal grooves extending at the bottom wall 41
  • the second terminal contact part 52, the first contact part 53 of the socket terminal located on the longitudinal side of the socket side wall 42 formed by bending upward from the longitudinal inner side of the support arm part 51, and the first contact part 53 from the top of the first contact part 53.
  • the plug guide portion 14 is guided into the socket guide portion 44.
  • the plug terminal 20 is clamped between the first and second contact parts 53, 52 of the socket terminal of the socket terminal 50, and the first and second contact parts 22, 23 of the plug terminal 20 are respectively connected to the socket terminal
  • the first and second contact portions 53, 52 of 50 are in electrical contact.
  • the lateral ends of the island portion 45 are provided with a protected portion 451 facing the socket guide portion 44, and the protected portion 451 includes a mesa 453 whose horizontal plane is lower than that of the island portion 45.
  • the avoidance slope 452 formed obliquely downward from the platform surface 453, the slot 454 formed downwardly recessed from the platform surface 453, and the communication that connects the avoidance slope 452 is opened from the slot 454 to the lateral outside Gap 455.
  • the socket guide 44 includes outer peripheral walls 441 and 442 and a plug guide receiving cavity 443 located between the outer peripheral walls 441 and 442.
  • the outer peripheral wall 441 includes a longitudinal outer peripheral wall 441 and a pair of transverse outer peripheral walls 442 connected to both ends of the longitudinal outer peripheral wall 441, and the transverse outer peripheral wall 442 is adjacent to the socket side wall 42.
  • the plug guide portion receiving cavity 443 forms a through opening 4431 penetrating in the up and down direction corresponding to the lateral extension of the island portion 45, and the through opening 4431 extends all the way to the lower end of the longitudinal outer peripheral wall 441.
  • First and second extension grooves 4411 and 4412 are respectively provided on the lateral outside and inside of the longitudinal outer peripheral wall 441, and the second extension groove 4412 is in communication with the through opening 4431.
  • the longitudinal outer peripheral wall 442 protrudes upward in the middle to form a supporting shoulder 4421.
  • the elastic avoiding portion 4424 on the longitudinal inner side of the supporting shoulder portion 4421 is supported.
  • the supporting shoulder 4421 gradually becomes thinner from bottom to top to form a thicker portion 4422 and a thinner portion 4423.
  • the thinner portion 4423 gradually becomes thinner from bottom to top.
  • the thinner portion 4423 is located in the plug guide portion receiving A larger inclined surface is formed on one side of the cavity 443, and a smaller inclined surface is formed at one end of the thinner portion 4423 located on the outer side in the longitudinal direction.
  • the longitudinal outer peripheral wall 441 is provided with stepped portions 4413 at both longitudinal ends of the longitudinal outer peripheral wall 441 located inside the plug guide portion receiving cavity 443, respectively.
  • the installation step portion 4425 penetrates to form a third extension groove 4428 in the vertical direction.
  • the socket reinforcement 60 includes a main body 61 covering the top surface of the longitudinal outer peripheral wall 441 in the longitudinal direction, and is bent downwardly from the lateral outer end of the main body 61
  • the longitudinal outer peripheral wall covering portion 62 of the first extension groove 4411 is bent downward from the lateral inner side of the main body portion 61 and extends to the central guide portion on the protected portion 451 at the lateral end of the island portion 45 63.
  • the top end of the portion 64 is bent toward the plug guide portion receiving cavity 443 and is located on the supporting shoulder portion 4421, and the protective portion 66 is bent from the top of the lateral outer peripheral wall covering portion 64 toward the plug guide portion receiving cavity 443 Extend to the elastic arm portion 65 on the elastic avoiding portion 4424.
  • the edge of the protection portion 66 located at one side of the plug guide portion receiving cavity 443 is formed to extend obliquely downward to guide the plug reinforcement 30 to be inserted.
  • the elastic 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 supporting shoulder 4421 toward the plug guide portion receiving cavity 443, and a free connecting arm 651 from the inclined connecting arm 651.
  • a contact arm portion 652 formed by extending the end vertically downward and a contact protrusion 653 formed by stamping from the contact arm portion 652 toward the plug guiding portion receiving cavity 443.
  • the contact arm portion 652 extends in the transverse direction to the side of the protection portion 66 to form a strip structure extending in the transverse direction.
  • the contact convex portion 653 is located in the plug guide portion 443, and there is a gap between the protection portion 66 and the contact arm portion 652 without overlapping.
  • the inclined connecting arms 651 maintain the same inclination angle, and the protection 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 end of the longitudinal outer circumferential wall covering portion 62 is fixed to the printed circuit board as a solder foot, and the bottom end of the lateral outer circumferential wall covering portion 64 is used as a solder foot to extend to the printed circuit board through the third extension groove 4428 for soldering fixed.
  • the central guide portion 63 includes a first central guide arm 631 that is bent downward from the lateral inner side of the main body portion 61 and extends in the second extension groove 4412, and from the bottom of the first central guide arm 631
  • the bottom support arm 632 that is bent laterally and extends along the through opening 4431 to the bottom of the protected portion 451 on both sides of the island portion 45, and extends diagonally upward from the support bottom arm 632 to above the protected portion 451
  • the second central guiding arm 634 and the locking end 635 bent downward from the free end of the second central guiding arm 634 and locked into the locking slot 454.
  • the first and second central guiding arms 631 and 634 are used to guide the insertion of the plug reinforcement 30 and protect the longitudinal outer peripheral wall 441 of the socket body 40 and the protected portion 451 at the lateral ends of the island portion 45.
  • the longitudinal outer side covering portion 35 and the longitudinal inner side covering portion 34 of the plug reinforcement 30 are respectively guided by the first and second central guiding arms 631, 634 and enter the first and second supporting bottom arms 632.
  • the longitudinal outer side covering portion 35 and the longitudinal inner side covering portion 34 are not connected to the first and second central guide arms 631, 634 makes electrical contact.
  • the supporting bottom arm 632 is pressed and the mounted printed circuit board generates a supporting force so that the first and second central guiding arms 631 and 634 have certain elasticity.
  • the longitudinal width of the upper end of the first central guiding arm 631 is greater than the longitudinal width of the lower end, and the first central guiding arm 631 has a stepped portion 4413 on the inner side of the longitudinal outer peripheral wall 441 formed on both longitudinal sides of the upper end of the first central guiding arm 631.
  • the wider upper end bending structure of the first central guiding arm 631 can increase the guidance of the plug reinforcement 30 and avoid insertion damage.
  • the contact arm portion 652 of the elastic arm portion 65 is located on the elastic avoiding portion 4424 and there is a deformation gap between the inner side surface of the supporting shoulder portion 4421, and the elastic arm portion 65 is longitudinally squeezed.
  • the contact convex portion 653 of the elastic arm portion 65 deforms in the deformation gap.
  • the lateral outer side covering portion 33 of the plug reinforcement 30 first contacts the protective portion 66, the inclined connecting arm 651 of the elastic arm portion 65, and the upper end of the first central guide arm 631.
  • the contact protrusion 653 is squeezed along the longitudinal outer side, so that the contact arm 652 is elastically deformed in the elastic avoiding portion 4424 toward the inner wall surface of the supporting shoulder 4421.
  • the plug reinforcement 30 contacts and longitudinally presses the protection portion 66 and the inclined connecting arm 651, the portion of the protection portion 66 that extends to the plug guide portion receiving cavity 443 side is shorter.
  • the elastic deformation is small, and when the lower end of the inclined connecting arm 651 is longitudinally squeezed, the contact arm 652 will gradually be forced to deform toward the support shoulder 4421 ,
  • the outer side of the contact arm portion 652 is gradually approached to the protection portion 66 and the gap between the two is reduced to avoid damage when the plug reinforcement 30 is inserted into the contact arm portion 652
  • the upper end of the contact arm 652 has an arc structure to better guide the inserted plug reinforcement 30 without crushing the contact arm 652.
  • the protection portion 66 is located on the laterally outer side of the elastic arm portion 65.
  • the board-to-board socket of the present application extends the contact arm portion 652 of the elastic arm portion 65 to the side of the protective portion 66 in the transverse direction, and is compressed by the inclined connecting arm 651 when the plug reinforcement 30 is inserted.
  • the contact arm portion 652 is driven to be close to the side of the protection portion 66 in the longitudinal direction to prevent the contact arm portion 652 from being damaged by the plug.
  • FIG. 12 and FIG. 13 are the drawings of the socket reinforcement 60 of the second embodiment.
  • the second embodiment differs mainly in the structure of the socket reinforcement 60, that is, the protective portion 66 and the inclined connecting arm 651 of the elastic arm portion 65 are connected as one body from the lateral outer peripheral wall covering portion 64 is formed by bending the top, collectively referred to herein as the protective portion 66, and the protective portion 66 is divided into first and second protective portions 661, 662 in the transverse direction.
  • the elastic arm portion 65 is formed diagonally extending downward from the first protection portion 661, and the elastic arm portion 65 includes a shape extending obliquely from the lower end of the first protection portion 661 toward the plug guide portion receiving cavity 443.
  • the contact arm portion 652 extends to a side of the second protection portion 662 in the transverse direction and is separated from the second protection portion 662 to form a division groove 654.
  • the printed circuit board on which the plug A or the socket B is attached in this specification is not limited to a circuit board, as long as it conforms to an object provided with a current transmission line.

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

一种板对板插座，包括插座本体、插座端子及插座加强件，所述插座本体包括底壁、自所述底壁纵向两端向上凸出形成的插座侧壁、形成于所述插座本体横向两端的插座引导部及自所述底壁向上凸出形成岛部，所述插座引导部包括插头引导部接收腔、位于所述插头引导部接收腔横向外侧的纵向外周壁及位于所述插头引导部接收腔纵向两侧的一对横向外周壁，所述插座加强件包括覆盖于所述纵向外周壁表面的主体部、自所述主体部纵向两侧沿横向方向延伸覆盖于所述横向外周壁外的横向外周壁遮盖部、自所述横向外周壁遮盖部顶端向内翻折延伸形成的保护部及自所述保护部继续延伸形成的弹性臂部。

Description

板对板插座
本申请要求于2020年6月16日提交中国专利局的两件中国专利申请的优先权，该等中国专利申请依次为：申请号为202010547827.X，发明名称为“板对板插座”；申请号为202021116910.3，发明名称为“板对板插座”。
技术领域
本申请涉及连接器领域，尤指一种板对板插座。
 背景技术
板对板连接器组件被广泛应用于消费电子领域，诸如智能手机、平板电脑、可穿戴设备等。当前智能手机及可穿戴设备均对空间要求极高，零组件的尺寸同样在缩减，一线板对板厂家的板对板插头与插座配合后的最低高度已经达到了0.6mm的超低高度，端子间距也达到了0.25mm的距离，如此微小的连接器，对于连接器结构强度提出了较高的要求，且相较于传统板对板连接器组件，现有智能手机大规模的功能集成，对电流承载能力提出更高的要求，如液晶屏等对电流传输要求达到5A的承载能力，传统的板对板连接器组件设计已无法适应目前市场对强度及电流传输的要求。
 技术问题
鉴于此，有必要提供一种板对板插座，在结构简单量产性好的基础，保证插座加强件可以得到好的保护，避免弹性臂部被损坏。
 技术解决方案
为解决上述技术问题，本申请提供了一种板对板插座，包括插座本体、插座端子及插座加强件，所述插座本体包括底壁、自所述底壁纵向两端向上凸出形成的插座侧壁、形成于所述插座本体横向两端的插座引导部及自所述底壁向上凸出形成岛部，所述插座引导部包括插头引导部接收腔、位于所述插头引导部接收腔横向外侧的纵向外周壁及位于所述插头引导部接收腔纵向两侧的一对横向外周壁，所述插座加强件包括覆盖于所述纵向外周壁表面的主体部、自所述主体部纵向两侧折弯并沿横向方向延伸覆盖于所述横向外周壁外的横向外周壁遮盖部及自所述横向外周壁遮盖部顶端分别朝向所述插头引导部接收腔一侧翻折延伸形成的弹性臂部与保护部，所述弹性臂部包括自所述横向外周壁遮盖部折弯并斜向下延伸形成的倾斜连接臂、自所述倾斜连接臂竖直折弯形成的接触臂部及自所述接触臂部朝向所述插头引导部接收腔冲压形成的接触凸部，所述接触臂部一端沿横向方向延伸至所述保护部一侧。
为解决上述技术问题，本申请还提供了一种板对板插座，包括插座本体、插座端子及插座加强件，所述插座本体包括底壁、自所述底壁纵向两端向上凸出形成的插座侧壁、形成于所述插座本体横向两端的插座引导部及自所述底壁向上凸出形成岛部，所述插座引导部包括插头引导部接收腔、位于所述插头引导部接收腔横向外侧的纵向外周壁及位于所述插头引导部接收腔纵向两侧的一对横向外周壁，所述插座加强件包括覆盖于所述纵向外周壁表面的主体部、自所述主体部纵向两侧折弯并沿横向方向延伸覆盖于所述横向外周壁外的横向外周壁遮盖部及自所述横向外周壁遮盖部顶端朝向所述插头引导部接收腔一侧翻折延伸形成的保护部，所述保护部在横向方向上分别包括第一、第二保护部，所述第一保护部继续斜向下延伸形成有弹性臂部，所述弹性臂部包括自第一保护部倾斜延伸形成的倾斜连接臂、自所述倾斜连接臂竖直折弯形成的接触臂部及自所述接触臂部朝向所述插头引导部接收腔冲压形成的接触凸部，所述接触臂部一端沿横向方向延伸至所述第二保护部一侧，从上往下看，所述第二保护部与所述接触臂部之间存在分割槽。
本申请板对板插座通过将所述弹性臂部的接触臂部沿横向方向延伸至所述保护部一侧，在插头加强件插入时，通过所述倾斜连接臂受挤压带动所述接触臂部沿纵向方向靠近所述保护部一侧以避免接触臂部被插头损坏。
 有益效果
本申请板对板插座通过在所述横向外周壁遮盖部顶端朝向所述插头引导部接收腔折弯延伸形成在横向方向上的第一、第二保护部，再从所述第一保护部继续延伸形成弹性臂部，所述弹性臂部的接触臂部与所述第一保护部通过倾斜连接臂连接，而所述接触臂部延伸至所述第二保护部一侧并与所述第二保护部之间切除形成分割槽，保证所述接触臂部足够的弹性力且获得所述第一、第二保护部的保护而不易被插坏。
 附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1至图11为本申请板对板连接器组件的附图；
图1为实施例一板对板连接器组件的组合图；
图2为沿图1所示A-A虚线的剖视图；
图3为实施例一对板插头的立体组合图；
图4为实施例一对板插头的插头本体的立体图及其局部放大图；
图5为实施例一板对板插头的插头加强件的立体图；
图6为实施例一板对板插头的插头加强件另一角度的立体图；
图7为实施例一板对板插座的立体组合图；
图8为实施例一板对板插座的插座本体的立体图及其局部放大图；
图9为实施例一板对板插座的插座加强件的立体图；
图10为实施例一板对板插座的插座加强件的俯视图；
图11为沿图1所示B-B虚线的剖视图。
图12为实施例二的板对板插座的插座加强件的立体图；
图13为实施例二的板对板插座的插座加强件的俯视图。
 本发明的实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的方向定义以图1所示X方向为左右方向的右方（或横向方向），以Y方向为前后方向的前方（或纵向方向），以Z方向为上下方向的上方（即垂直方向）。
实施例一
请参阅图1所示，本申请板对板连接器组件包括贴装于印刷电路板上的插头A及贴装于另一印刷电路板上的插座B，所述插头A与所述插座B相互扣持连接。
所述插头A包括插头本体10、成型于所述插头本体10内的若干插头端子20及固定于所述插头本体10横向两端的插头加强件30。所述插座B包括插座本体40、安装于所述插座本体40上插座端子50及安装固定于所述插座本体40横向两端的插座加强件60。
请参阅图2至图6所示，所述插头A的插头本体10包括顶壁11、自所述顶壁11纵向两侧向下延伸形成的一对插头侧壁12、形成于所述插头本体10横向两端的插头引导部14及形成于所述顶壁11、一对插头侧壁12与插头引导部14之间的岛部接收腔13。
所述插头端子20在横向方向上呈两排一体成型于一对插头侧壁12上，所述插头引导部14包括底表面141、纵向外侧面142、一对横向外侧面143及朝向所述岛部接收腔13的斜面144。所述纵向外侧面142上设有第一缺口1421，所述横向外侧面143包括两个纵向凸出的凸块1431，1432、位于两个凸块1431，1432之间的第二缺口1433及位于所述凸块1432与所述插头侧壁12之间的第三缺口1434。所述斜面144形成有自所述底表面141向上至所述顶壁11的倾斜面1441及自所述倾斜面1441在靠近所述底表面141一侧向上凹陷形成的卡孔1442。
所述插头加强件30包括沿纵向方向覆盖于所述插头引导部14的底表面141上的覆盖基部31、自所述覆盖基部31横向两端向上折弯延伸形成的分别覆盖于所述纵向外侧面142与卡入所述卡孔1442内的纵向外侧面覆盖部35与纵向内侧面覆盖部34及自所述覆盖基部31纵向两端向上折弯延伸形成的沿横向方向覆盖于所述横向外侧面143外的横向外侧面覆盖部33。所述纵向外侧面覆盖部35卡入所述第一缺口1421内。
所述横向外侧面覆盖部33包括卡入所述第二缺口1421内的接触部331、自所述横向外侧面覆盖部33远离所述纵向外侧面覆盖部35一端顶部垂直向纵向外侧折弯形成的焊脚332，所述横向外侧面覆盖部33的接触部331卡入所述第二缺口1433内，所述焊脚332是卡入所述第三缺口1434后再向纵向外侧垂直折弯形成的，所述横向外侧面覆盖部33上还设有卡口333以卡入所述凸块1432外周，增强所述插头加强件30与所述插头引导部14之间的固持力。
重点参阅图2所示，所述插头端子20包括在自所述顶壁11上表面在纵向方向延伸出所述顶壁11外的插头端子焊脚24、自所述插头端子焊脚24沿所述顶壁11表面折弯至所述插头侧壁12的内侧面上的插头端子第一接触部22及自所述插头端子第一接触部22低端反向折弯延伸于所述插头侧壁12外侧面上的插头端子第二接触部23。所述插头端子第二接触部23上开设有凹槽结构。
请继续参阅图1、图2、图7、图8所示，本申请的板对板连接器组件的插座B的插座本体40包括底壁41、自所述底壁41纵向两侧向上延伸形成的一对插座侧壁42、自所述底壁41位于一对所述插座侧壁42之间向上凸出形成的岛部45、形成于所述插座本体40横向两端的插座引导部44及形成于所述岛部45与一对所述插座侧壁42之间的插头侧壁接收腔43。
所述插座本体40的底壁自下向上开设有若干端子槽46，所述插座端子50向上组装于所述端子槽46内，所述插座端子50包括延伸于所述底壁41处的端子槽46内并露出于所述端子槽46底部的支撑臂部51、自所述支撑臂部51纵向外侧向上折弯延伸形成的位于所述岛部45纵向侧面并朝向所述插座侧壁42的插座端子第二接触部52、自所述支撑臂部51纵向内侧向上折弯形成的位于所述插座侧壁42纵向侧面的插座端子第一接触部53、自所述第一接触部53顶端反向折弯延伸形成的固持部54及自所述固持部54低端垂直折弯朝纵向外侧延伸于所述插座本体40底壁41下表面的焊脚55。
所述插头A与所述插座B配合时，所述岛部45收容于所述插头A的岛部接收腔13内，所述插头A的插头侧壁12收容于所述插座B的插头侧壁接收腔43内，所述插头引导部14引导入所述插座引导部44内。所述插头端子20卡入所述插座端子50的插座端子第一、第二接触部53，52之间，所述插头端子20的第一、第二接触部22，23分别与所述插座端子50的第一、第二接触部53，52电性接触。
重点参阅图8所示，所述岛部45的横向两端朝向所述插座引导部44处设有被保护部451，所述被保护部451包括水平面低于所述岛部45的台面部453、自所述台面部453斜向下方倾斜形成的避让斜面452、自所述台面部453向下凹陷形成的卡槽454及自所述卡槽454向横向外侧开设连通所述避让斜面452的连通缺口455。
所述插座引导部44包括外周壁441，442及位于所述外周壁441，442之间的插头引导部接收腔443。所述外周壁441包括纵向外周壁441及连接于所述纵向外周壁441两端的一对横向外周壁442，所述横向外周壁442与所述插座侧壁42相邻。
所述插头引导部接收腔443对应所述岛部45横向延伸处形成在上下方向贯通的贯通口4431，所述贯通口4431一直延伸至所述纵向外周壁441下端。所述纵向外周壁441的横向外侧与内侧分别设有第一、第二延伸槽4411，4412，所述第二延伸槽4412与所述贯通口4431连通。所述纵向外周壁442中间向上凸出形成支撑肩部4421，在所述支撑肩部4421的外周设有位于所述支撑肩部4421纵向外侧且沿横向方向延伸的安装台阶部4425及位于所述支撑肩部4421的纵向内侧的弹性避让部4424。所述支撑肩部4421自下向上逐渐变薄形成较厚部4422与较薄部4423，所述较薄部4423从下向上依据逐渐变薄，所述较薄部4423位于所述插头引导部接收腔443一侧形成较大的倾斜面，所述较薄部4423位于纵向外侧一端形成较小的倾斜面。所述纵向外周壁441位于所述插头引导部接收腔443内侧的纵向两端分别设有阶梯部4413。所述安装台阶部4425部分在垂直方向上贯穿形成第三延伸槽4428。
请继续参阅图9至图11所示，所述插座加强件60包括沿纵向方向覆盖于所述纵向外周壁441顶面的主体部61、自所述主体部61横向外端向下折弯延伸入所述第一延伸槽4411的纵向外周壁遮盖部62、自所述主体部61横向内侧向下折弯并延伸至所述岛部45横向端部的被保护部451上的中央导引部63、自所述主体部61纵向两端向下折弯并沿所述安装台阶部4425延伸形成的位于所述横向外周壁442纵向外侧的横向外周壁遮盖部64、自所述横向外周壁遮盖部64的顶端朝向所述插头引导部接收腔443折弯并位于所述支撑肩部4421上的保护部66及自所述横向外周壁遮盖部64顶部朝向所述插头引导部接收腔443折弯延伸至所述弹性避让部4424上的弹性臂部65。
所述保护部66位于所述插头引导部接收腔443一侧的边缘倾斜向下延伸形成以导引所述插头加强件30插入。所述弹性臂部65包括自所述横向外周壁遮盖部64顶部沿所述支撑肩部4421朝向所述插头引导部接收腔443折弯形成的倾斜连接臂651、自所述倾斜连接臂651自由端竖直向下延伸形成的接触臂部652及自所述接触臂部652朝向所述插头引导部接收腔443冲压形成的接触凸部653。所述接触臂部652在横向方向上延伸至所述保护部66一侧形成在横向方向上延伸的条状结构。从上往下观察，所述接触凸部653位于所述插头引导部443内，所述保护部66与所述接触臂部652之间存在间隙而不重合。所述倾斜连接臂651保持一样的倾斜角度，所述保护部66与所述弹性臂部65之间是独立地从所述横向外周壁遮盖部64折弯延伸形成的。
所述纵向外周壁遮盖部62的自由端作为焊脚固定至印刷电路板上，所述横向外周壁遮盖部64的底端作为焊脚通过所述第三延伸槽4428延伸至印刷电路板上焊接固定。
所述中央导引部63包括自所述主体部61横向内侧向下折弯延伸于所述第二延伸槽4412内的第一中央导引臂631、自所述第一中央导引臂631底部横向折弯并沿所述贯通口4431延伸至所述岛部45两侧的被保护部451底部的支撑底臂632、自所述支撑底臂632斜向上延伸至所述被保护部451上方的第二中央导引臂634及自所述第二中央导引臂634自由端向下折弯并卡入所述卡槽454内的卡入端部635。所述第一、第二中央导引臂631，634用于引导所述插头加强件30的插入并保护所述插座本体40的纵向外周壁441与岛部45横向两端的被保护部451。所述插头加强件30的纵向外侧面覆盖部35与纵向内侧面覆盖部34分别被所述第一、第二中央导引臂631，634引导并进入所述支撑底臂632上方的第一、第二中央导引臂631，634之间，但是在插入状态下，所述纵向外侧面覆盖部35与所述纵向内侧面覆盖部34不与所述第一、第二中央导引臂631，634产生电性接触。插入过程中，所述支撑底臂632受压与贴装的印刷电路板产生支撑力量使所述第一、第二中央导引臂631，634具备一定的弹性。
所述第一中央导引臂631的上端的纵向宽度大于下端的纵向宽度并在所述第一中央导引臂631上端的纵向两侧形成抵持于纵向外周壁441内侧的阶梯部4413上。所述第一中央导引臂631较宽的上端折弯结构可以增加对所述插头加强件30的引导，避免插入损坏。
自然状态下，所述弹性臂部65 的接触臂部652位于所述弹性避让部4424上且与所述支撑肩部4421的内侧面之间存在形变间隙，在所述弹性臂部65被纵向挤压时，所述弹性臂部65的接触凸部653在所述形变间隙内产生形变。
在插头A插入时，所述插头加强件30的横向外侧面覆盖部33先接触所述保护部66、弹性臂部65的倾斜连接臂651及所述第一中央导引臂631上端，所述插头加强件30继续下压时，沿纵向外侧挤压所述接触凸部653，使所述接触臂部652在所述弹性避让部4424内朝所述支撑肩部4421的内壁面产生弹性形变。在此过程中，当所述插头加强件30接触并纵向挤压所述保护部66与倾斜连接臂651时，所述保护部66延伸至所述插头引导部接收腔443一侧的部分较短且有所述支撑肩部4421的支撑，产生弹性形变很小，而所述倾斜连接臂651的下端被纵向挤压时，会逐步迫使所述接触臂部652朝向所述支撑肩部4421产生形变，从上往下观察，使所述接触臂部652的外侧逐渐靠近所述保护部66并减小二者之间的间隙，避免所述插头加强件30插入至所述接触臂部652时破坏所述接触臂部652。同时，所述接触臂部652的上端为弧形结构以更好地引导插入的所述插头加强件30而不会压坏所述接触臂部652。所述保护部66位于所述弹性臂部65的横向外侧。
本申请板对板插座通过将所述弹性臂部65的接触臂部652沿横向方向延伸至所述保护部66一侧，在插头加强件30插入时，通过所述倾斜连接臂651受挤压带动所述接触臂部652沿纵向方向靠近所述保护部66一侧以避免接触臂部652被插头损坏。
实施例二
请继续参阅图12、图13所示，为实施例二的插座加强件60的附图。
相较于实施例一，实施例二的区别主要在于插座加强件60的结构，即所述保护部66与所述弹性臂部65的倾斜连接臂651连接为一体自所述横向外周壁遮盖部64顶部折弯形成的，此处统称为保护部66，所述保护部66在横向方向上区分为第一、第二保护部661，662。所述弹性臂部65是自所述第一保护部661斜向下方延伸形成的，所述弹性臂部65包括自所述第一保护部661下端斜向所述插头引导部接收腔443延伸形成的倾斜连接臂651、自所述倾斜连接臂651下端竖直向下折弯形成的接触臂部652及自所述接触臂部652朝向所述插头引导部接收腔443冲压形成的接触凸部653。所述接触臂部652沿横向方向延伸至所述第二保护部662一侧并与所述第二保护部662之间割裂形成分割槽654。
实施例二所达成的技术效果与实施例一一致，优选实施例为实施例一。
需要说明的是，本说明书中的贴装所述插头A或插座B的印刷电路板不限于电路板，只要符合设有电流传输线路的对象物均可。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (20)

1. 一种板对板插座，包括插座本体、插座端子及插座加强件，所述插座本体包括底壁、自所述底壁纵向两端向上凸出形成的插座侧壁、形成于所述插座本体横向两端的插座引导部及自所述底壁向上凸出形成岛部，所述插座引导部包括插头引导部接收腔、位于所述插头引导部接收腔横向外侧的纵向外周壁及位于所述插头引导部接收腔纵向两侧的一对横向外周壁，所述插座加强件包括覆盖于所述纵向外周壁表面的主体部、自所述主体部延伸并覆盖于所述横向外周壁外的横向外周壁遮盖部及自所述横向外周壁遮盖部顶端分别朝向所述插头引导部接收腔一侧翻折延伸形成的弹性臂部与保护部，其特征在于，所述弹性臂部包括自所述横向外周壁遮盖部折弯并斜向下延伸形成的倾斜连接臂、自所述倾斜连接臂竖直折弯形成的接触臂部及自所述接触臂部朝向所述插头引导部接收腔冲压形成的接触凸部，所述接触臂部一端沿横向方向延伸至所述保护部一侧。
2. 如权利要求1所述的板对板插座，其特征在于，所述接触臂部的上端为弧面结构，所述倾斜连接臂与所述保护部的倾斜角度一致。
3. 如权利要求1所述的板对板插座，其特征在于，从上往下观察，所述保护部与所述接触臂部之间存在间隙，所述保护部位于所述接触臂部的纵向外侧。
4. 如权利要求1所述的板对板插座，其特征在于，所述插座本体的横向外周壁包括支撑肩部及位于所述支撑肩部纵向内侧连通所述插头引导部接收腔的弹性避让部，所述弹性臂部自所述横向外周壁遮盖部顶端翻折跨越所述支撑肩部后进入所述弹性避让部内，所述接触凸部位于所述插头引导部接收腔内。
5. 如权利要求4所述的板对板插座，其特征在于，所述保护部自所述横向外周壁遮盖部顶端翻折跨越所述支撑肩部后进入所述弹性避让部上方，所述接触臂部位于所述保护部倾斜延伸方向的下方。
6. 如权利要求5所述的板对板插座，其特征在于，所述支撑肩部的纵向外侧形成有安装台阶部，所述横向外周壁遮盖部延伸于所述安装台阶部上，所述支撑肩部自下向上逐渐变薄，包括位于下部的较厚部与位于顶部的较薄部。
7. 如权利要求6所述的板对板插座，其特征在于，所述较薄部朝向所述插头引导部接收腔一侧设有角度较大的倾斜面，所述保护部的自由端支撑于所述较大的倾斜面上，所述较薄部位于纵向外侧一端设有较小的倾斜面，所述较小的倾斜面以避让所述倾斜连接臂与所述保护部的折弯弧度。
8.如权利要求4所述的板对板插座，其特征在于，在一插头插入所述插座时，所述插头包括有插入所述插头引导部接收腔内的插头加强件，所述插头加强件沿纵向两端接触并挤压所述保护部及倾斜连接臂，所述保护部受到所述支撑肩部的支撑，所述倾斜连接臂的下端受到所述插头加强件的挤压时，迫使所述接触臂部朝向所述保护部产生形变以减小二者在垂直投影方向上的间隙，从而使所述插头加强件顺利插入并与所述接触凸部电性接触。
9. 如权利要求1所述的板对板插座，其特征在于，所述岛部的横向两端设有水平位置低于所述岛部的被保护部，所述插座加强件还包括自所述主体部横向内侧向下折弯并延伸至所述被保护部并覆盖所述被保护部的中央导引部，所述中央导引部包括自所述主体部横向内侧向下折弯形成第一中央导引臂、自所述第一中央导引臂底部折弯延伸至所述被保护部一侧的支撑底臂、自所述支撑底臂斜向上延伸至所述被保护部上方的第二中央导引臂及自所述第二中央导引臂自由端向下折弯并卡入所述被保护部内的卡入端部。
10. 如权利要求9所述的板对板插座，其特征在于，所述纵向外周壁靠近所述插头引导部接收腔一侧的纵向两端设有阶梯部，所述第一中央导引臂的上端的纵向宽度大于所述第一中央导引臂下端的纵向宽度，所述第一中央导引臂上端纵向两端的底部对应位于所述阶梯部上方。
11. 一种板对板插座，包括插座本体、插座端子及插座加强件，所述插座本体包括底壁、自所述底壁纵向两端向上凸出形成的插座侧壁、形成于所述插座本体横向两端的插座引导部及自所述底壁向上凸出形成岛部，所述插座引导部包括插头引导部接收腔、位于所述插头引导部接收腔横向外侧的纵向外周壁及位于所述插头引导部接收腔纵向两侧的一对横向外周壁，所述插座加强件包括覆盖于所述纵向外周壁表面的主体部、自所述主体部延伸并覆盖于所述横向外周壁外的横向外周壁遮盖部及自所述横向外周壁遮盖部顶端朝向所述插头引导部接收腔一侧翻折延伸形成的保护部，其特征在于，所述保护部在横向方向上分别包括第一、第二保护部，所述第一保护部继续斜向下延伸形成有弹性臂部，所述弹性臂部包括自第一保护部倾斜延伸形成的倾斜连接臂、自所述倾斜连接臂竖直折弯形成的接触臂部及自所述接触臂部朝向所述插头引导部接收腔冲压形成的接触凸部，所述接触臂部一端沿横向方向延伸至所述第二保护部一侧，从上往下看，所述第二保护部与所述接触臂部之间存在分割槽。
12. 如权利要求11所述的板对板插座，其特征在于，所述接触臂部的上端为弧面结构，所述倾斜连接臂与所述保护部的延伸倾斜角一致。
13. 如权利要求11所述的板对板插座，其特征在于，所述分割槽是将所述第二保护部与所述接触臂部一端的连接部分切除以增加所述接触臂部的弹性性能，所述保护部位于所述接触臂部的纵向外侧。
14. 如权利要求11所述的板对板插座，其特征在于，所述插座本体的横向外周壁包括支撑肩部及位于所述支撑肩部纵向内侧连通所述插头引导部接收腔的弹性避让部，所述弹性臂部自所述横向外周壁遮盖部顶端翻折跨越所述支撑肩部后进入所述弹性避让部内，所述接触凸部位于所述插头引导部接收腔内。
15. 如权利要求14所述的板对板插座，其特征在于，所述保护部自所述横向外周壁遮盖部顶端翻折跨越所述支撑肩部后进入所述弹性避让部上方，所述接触臂部位于所述第二保护部倾斜延伸方向的下方。
16. 如权利要求15所述的板对板插座，其特征在于，所述支撑肩部的纵向外侧形成有安装台阶部，所述横向外周壁遮盖部延伸于所述安装台阶部上，所述支撑肩部自下向上逐渐变薄，包括位于下部的较厚部与位于顶部的较薄部。
17. 如权利要求16所述的板对板插座，其特征在于，所述较薄部朝向所述插头引导部接收腔一侧设有角度较大的倾斜面，所述保护部的自由端支撑于所述较大的倾斜面上，所述较薄部位于纵向外侧一端设有较小的倾斜面，所述较小的倾斜面以避让所述倾斜连接臂与所述保护部的折弯弧度。
18. 如权利要求17所述的板对板插座，其特征在于，所述保护部的下端支撑于所述支撑肩部内侧面上较大的倾斜面上。
19. 如权利要求11所述的板对板插座，其特征在于，所述岛部的横向两端设有水平位置低于所述岛部的被保护部，所述插座加强件还包括自所述主体部横向内侧向下折弯并延伸至所述被保护部并覆盖所述被保护部的中央导引部，所述中央导引部包括自所述主体部横向内侧向下折弯形成第一中央导引臂、自所述第一中央导引臂底部折弯延伸至所述被保护部一侧的支撑底臂、自所述支撑底臂斜向上延伸至所述被保护部上方的第二中央导引臂及自所述第二中央导引臂自由端向下折弯并卡入所述被保护部内的卡入端部。
20. 如权利要求19所述的板对板插座，其特征在于，所述纵向外周壁靠近所述插头引导部接收腔一侧的纵向两端设有阶梯部，所述第一中央导引臂的上端的纵向宽度大于所述第一中央导引臂下端的纵向宽度，所述第一中央导引臂上端纵向两端的底部对应位于所述阶梯部上方。
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