Male seat connector, female seat connector, electric connector assembly and electric connection device

Abstract

The utility model provides a male seat connector, a female seat connector, an electric connector assembly and a board-to-board electric connection device comprising the electric connector assembly. The male connector may define: a thickness extending in a first direction; a width extending in a second direction perpendicular to the first direction; and a length extending in a third direction perpendicular to both the first direction and the second direction, the male seat connector may include a plurality of male seat terminals arranged in a male seat terminal array and a male seat accommodating member for accommodating the male seat terminals, the lengths of two adjacent rows of male seat terminals arranged along the second direction or two adjacent columns of male seat terminals arranged along the third direction in the first direction of the male seat connector are different from each other.

Description

Technical Field

[0001] The present application relates to a male connector, a female connector, an electrical connector assembly including the male connector and the female connector, and a board-to-board electrical connection device including the electrical connector assembly. Background Art

[0002] The application of board-to-board (BTB) connectors is becoming more and more widespread. In the field of electronic equipment, board-to-board connectors are widely used in connecting components such as display screens, touch screens, cameras, and radio frequency components to printed circuit boards.

[0003] A board-to-board connector is a connector used inside electronic products to achieve signal transmission between two circuit boards. Usually, a board-to-board connector includes a plug connector (male connector) and a socket connector (female connector) that are plugged into each other. The plug connector (male connector) and the socket connector (female connector) are respectively welded to the corresponding circuit boards through the welding parts of their conductive terminals so that the connectors are fixed to the corresponding circuit boards. When the plug connector is inserted into the socket connector, an electrical connection between the two circuit boards can be achieved. In addition, the terminals in the commonly used board-to-board connector do not transmit current.

[0004] In the currently known board-to-board connector applications, more and more terminals are required to transmit signals and / or currents. In order to achieve a larger number of terminals, one measure is to increase the number of plug connectors and socket connectors, and another measure is to increase the number of conductive terminals of each of the plug connector and the socket connector. However, the use of multiple plug connectors and socket connectors that match each other between two boards in the board-to-board connector places higher requirements on the mutual position relationship and size of the plug connector and the socket connector.

[0005] In order to effectively control the mating force required for engaging the connector, a typical board-to-board connector has a double-row configuration. Even for connectors with multiple rows, the terminals need to be wider, and pads are usually provided between two adjacent rows of terminals to provide additional support. In addition, the mounting surface of the board-to-board connector should be flat enough for stable mounting with the printed circuit board, which limits the physical size of the board-to-board connector (e.g., not too long) and thus limits the terminal density.

[0006] In the related art, in order to provide a stronger connection between the connector and the printed circuit board, the conductive terminals of some board-to-board connectors are connected to the printed circuit board through solder balls, so that the connector has a board stacking type ball grid array configuration, but this makes the manufacturing process of the connector more complicated and therefore the cost will be higher. In addition, the conventional board-to-board connector has a low mechanical strength.

[0007] Therefore, it is necessary to conduct further research on board-to-board connectors. Utility Model Content

[0008] This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

[0009] In view of the above-mentioned problems arising in the related art, the present application provides a male connector, a female connector, an electrical connector assembly including a male connector and a female connector, and a board-to-board electrical connection device including the electrical connector assembly, so as to at least partially solve the above-mentioned problems.

[0010] One aspect of the present application provides a male socket connector, which can be defined by: a thickness extending along a first direction; a width extending along a second direction perpendicular to the first direction; and a length extending along a third direction perpendicular to both the first direction and the second direction. The male socket connector may include a plurality of male socket terminals arranged in a male socket terminal array and a male socket accommodating member for accommodating the male socket terminals. The lengths of two adjacent rows of male socket terminals arranged along the second direction or two adjacent columns of male socket terminals arranged along the third direction in the first direction of the male socket connector are different from each other.

[0011] In some exemplary embodiments, the male terminal array may include at least three rows and / or at least three columns of male terminals, the male terminals arranged in the same row or column have the same length in a first direction, and the male terminals in the male terminal array are arranged to have the same size and configuration every two rows or every two columns.

[0012] In some exemplary embodiments, the male terminal may include a proximal end portion of the male terminal, a distal end portion of the male terminal, and an intermediate connecting portion connecting the proximal end portion of the male terminal and the distal end portion of the male terminal, and the outer contour dimension of the distal end portion of the male terminal in the second direction is smaller than the outer contour dimension of the proximal end portion of the male terminal in the second direction.

[0013] In some exemplary embodiments, an outer contour dimension of the distal end portion of the male terminal in the third direction may be smaller than an outer contour dimension of the proximal end portion of the male terminal in the third direction.

[0014] In some exemplary embodiments, the male socket accommodating member of the male socket connector may include a male socket accommodating member base, which may include a plurality of male socket accommodating member through holes arranged in the form of an array identical to an array of male socket terminals, each male socket terminal in the male socket connector respectively extending through a corresponding one of the plurality of male socket accommodating member through holes, so that the male socket terminal distal end portion of each male socket terminal extends beyond the distal side surface of the male socket accommodating member base, and the male socket terminal proximal end portion of each male socket terminal extends beyond the proximal side surface of the male socket accommodating member base.

[0015] In some exemplary embodiments, the male seat accommodating part through hole may include a male seat accommodating part through hole distal end portion for accommodating the distal end portion of the male seat terminal in a form-fitting manner and a male seat accommodating part through hole proximal end portion for accommodating the proximal end portion of the male seat terminal in a form-fitting manner, and the dimension of the male seat accommodating part through hole distal end portion in the second direction may be smaller than the dimension of the male seat accommodating part through hole proximal end portion in the second direction.

[0016] In some exemplary embodiments, a dimension of a distal end portion of the male seat accommodating through hole in the third direction may be smaller than a dimension of a proximal end portion of the male seat accommodating through hole in the third direction.

[0017] That is to say, the male seat accommodating part through hole has a smaller-sized male seat accommodating part through hole distal end portion and a larger-sized male seat accommodating part through hole proximal end portion. Therefore, when the male terminal is accommodated in the male seat accommodating part, the smaller-sized male seat terminal distal end portion is accommodated in the smaller-sized male seat accommodating part through hole distal end portion and the larger-sized male seat terminal proximal end portion is accommodated in the larger-sized male seat accommodating part through hole proximal end portion, thereby providing support for the male terminal, so that when the male connector is connected to the female connector, the male terminal can be stably matched with the female terminal of the female connector.

[0018] In some exemplary embodiments, the proximal portion of the male terminal may include at least one protrusion extending from opposite sides of the proximal portion of the male terminal along the second direction and arranged adjacent to the proximal end of the proximal portion of the male terminal, the protrusion being configured to gradually shrink from the proximal portion side of the male terminal toward the distal portion side of the male terminal along the first direction, and when the proximal portion of the male terminal is accommodated in the proximal portion of the through hole of the male receiving part, at least a portion of the protrusion abuts against two inner side surfaces of the proximal portion of the through hole of the male receiving part that are opposite in the second direction, thereby forming an interference fit with the proximal portion of the through hole of the male receiving part, so that the male terminal can be stably received in the through hole of the male receiving part, thereby preventing the male terminal from being accidentally pulled out of the through hole of the male receiving part.

[0019] In some exemplary embodiments, the intermediate connecting portion may include a bending portion, which may be configured such that: a central axis of a proximal portion of the male terminal extending along a first direction and a central axis of a distal portion of the male terminal extending along the first direction are offset from each other by a certain distance in a third direction, and, when the proximal portion of the male terminal is accommodated in a proximal portion of a through hole of a male seat accommodating component, an outer surface of the proximal portion of the male terminal away from the central axis of the proximal portion of the male terminal in the third direction abuts against an inner surface of the proximal portion of the through hole of the male seat accommodating component in the third direction, thereby, the proximal portion of the through hole of the male seat accommodating component can provide stable support for the proximal portion of the male terminal, so that the male terminal can be stably received in the through hole of the male seat accommodating component.

[0020] In some exemplary embodiments, the male seat accommodating part of the male seat connector may include a male seat accommodating part side wall extending from the peripheral edge of the male seat accommodating part base along the first direction, the male seat accommodating part side wall is integrally formed with the male seat accommodating part base, and the dimension of the male seat accommodating part side wall extending in the first direction is greater than the dimension of the portion of the male seat terminal extending beyond the distal side surface of the male seat accommodating part base.

[0021] Another aspect of the present application provides a female socket connector, which may have: a first direction that defines the thickness extension direction of the female socket connector; a second direction that defines the width dimension of the female socket connector and is perpendicular to the first direction; and a third direction that defines the longitudinal extension direction of the female socket connector, the third direction being perpendicular to the first direction and the second direction respectively, and the female socket connector may include a plurality of female socket terminals arranged in a female socket terminal array and female socket accommodating members for accommodating the female socket terminals, in which the female socket terminals are arranged in rows along the second direction and in columns along the third direction.

[0022] In some exemplary embodiments, the size of each of the plurality of socket terminals in the first direction may be the same.

[0023] In some exemplary embodiments, the socket terminal may include a socket terminal distal end portion and a socket terminal proximal end portion, the socket terminal proximal end portion may be formed as a plate-like portion, the socket terminal distal end portion includes a pair of leg-like portions cantilevered from a distal end portion of the proximal end portion of the socket terminal, the pair of leg-like portions including a first leg-like portion and a second leg-like portion, the first leg-like portion and the second leg-like portion being formed as: spaced apart at a portion adjacent to the proximal end portion of the socket terminal, and close to each other at a free end away from the proximal end portion of the socket terminal to form a clamping portion.

[0024] In some exemplary embodiments, the first leg-shaped portion may include a first leg-shaped proximal portion adjacent to the proximal portion of the female socket terminal and a first leg-shaped distal portion away from the proximal portion of the female socket terminal, and the second leg-shaped portion may include a second leg-shaped proximal portion adjacent to the proximal portion of the female socket terminal and a second leg-shaped distal portion away from the proximal portion of the female socket terminal, and the distance between the first leg-shaped distal portion and the second leg-shaped distal portion is smaller than the distance between the proximal portion of the first leg-shaped portion and the proximal portion of the second leg.

[0025] In some exemplary embodiments, the distal end of the first leg-shaped portion may include a first flat portion continuous with the proximal end of the first leg-shaped portion and a first spiral portion extending spirally from the first flat portion along a first spiral direction to gradually away from the first flat portion, the distal end of the second leg-shaped portion may include a second flat portion continuous with the proximal end of the second leg-shaped portion and a second spiral portion extending spirally from the second flat portion along a second spiral direction opposite to the first spiral direction to gradually away from the second flat portion, the first spiral portion and the second spiral portion may be configured to be spaced apart from each other and facing each other, and the distance separating the first spiral portion and the second spiral portion may be smaller than the distance between the proximal end of the first leg-shaped portion and the proximal end of the second leg-shaped portion, thereby forming a clamping portion.

[0026] In some exemplary embodiments, the female socket accommodating part of the female socket connector includes a female socket accommodating part base, the female socket accommodating part base includes a plurality of female socket accommodating part through holes arranged in the form of an array identical to the female socket terminal array, each female socket terminal of the female socket connector is respectively accommodated in a corresponding one of the plurality of female socket accommodating part through holes, so that the female socket terminal distal end portion of each female socket terminal is not visible from the distal side surface of the female socket accommodating part base, and the female socket terminal proximal end portion of each female socket terminal extends beyond the proximal side surface of the female socket accommodating part base.

[0027] Another aspect of the present application provides an electrical connector assembly, which may include the above-mentioned male connector and female connector arranged in pairs, and when the male connector and the female connector are engaged with each other, the distal side surface of the base of the male receiver and the distal side surface of the base of the female receiver face each other in a first direction, so that a plurality of male terminals arranged in a male terminal array are engaged with a plurality of female terminals arranged in a female terminal array in a one-to-one correspondence to form an electrical connection.

[0028] Through the above-mentioned electrical connector assembly provided by the present application, since the lengths of two adjacent rows of male terminals arranged along the second direction or two adjacent columns of male terminals arranged along the third direction in the male connector are different from each other in the first direction of the male connector, the forces required to connect the male connector to the female connector and to separate the male connector from the female connector can act on the male terminals at different times, so that the connection force / separation force can be dispersed in the entire process of connection / separation without generating a large force on the male terminals at the same time, thereby reducing the difficulty of connecting / separating the male connector and the female connector.

[0029] When the male connector and the female connector are in an assembled state, since the male terminals of the male connector and the female terminals of the female connector are in the form of corresponding terminal arrays, the number of usable male terminals and female terminals is increased, thereby improving the speed of electrical connection / signal connection of the electrical connector assembly.

[0030] In some exemplary embodiments according to the present application, in a state where the male connector is engaged with the female connector, the male terminal distal end portion of each male terminal of the male connector is inserted into a corresponding one of the plurality of female accommodating member through holes of the female accommodating member of the female connector along a first direction, and is engaged with the female terminal distal end portion of the female terminal accommodated in the corresponding female accommodating member through hole. In particular, the male terminal distal end portion is engaged with the first spiral portion and the second spiral portion of the female terminal distal end portion and is clamped between the first spiral portion and the second spiral portion.

[0031] In some exemplary embodiments of the present application, the male seat accommodating member and the female seat accommodating member respectively include positioning features for forming a form-fitting when the male connector is engaged with the female connector. The male seat accommodating member and the female seat accommodating member are combined through corresponding positioning features to prevent the male connector and the female connector from having a mating orientation flipped during mating, thereby providing guidance for the mating of the male connector and the female connector.

[0032] In some exemplary embodiments according to the present application, the male seat accommodating part side wall of the male seat accommodating part may include a first end wall and a second end wall opposite to each other in a first direction, and the positioning feature may include: male seat accommodating part base recesses formed at two opposite ends of the distal side surface of the male seat accommodating part base of the male seat connector in a third direction; and a third end wall and a fourth end wall arranged at opposite ends of the female seat accommodating part base of the female seat connector along the third direction, the third end wall and the fourth end wall being configured to extend beyond the distal side surface of the female seat accommodating part base along the first direction, so that: when the male seat connector is engaged with the female seat connector, the third end wall and the fourth end wall are respectively embedded in the groove formed by the first end wall and the second end wall and the corresponding male seat accommodating part base recesses. In this way, when the male seat connector is connected to the female seat connector, the third end wall and the fourth end wall must first be embedded in the groove to achieve the matching of the male seat connector and the female seat connector, so the positioning feature provides a guiding and positioning function for the connection of the male seat connector and the female seat connector.

[0033] In some exemplary embodiments according to the present application, the side wall of the male seat accommodating part may include a first side wall and a second side wall opposite to each other in the second direction, and the positioning feature portion may also include: first side wall recesses respectively arranged at two opposite ends of the first side wall in the third direction, and a first side wall protrusion protruding toward the interior of the male seat accommodating part and arranged between the two first side wall recesses adjacent to a corresponding one of the two first side wall recesses; on the side of the third end wall and the fourth end wall of the female seat accommodating part corresponding to the first side wall of the male seat accommodating part along the second direction, a third end wall protrusion and a fourth end wall protrusion are respectively arranged to extend beyond the side surface of the base of the female seat accommodating part along the second direction, wherein, when the male seat connector is engaged with the female seat connector, the third end wall protrusion and the fourth end wall protrusion of the female seat connector can be respectively engaged in a form-fitting manner with the corresponding first side wall recesses arranged in the first side wall of the male seat connector, and the first side wall protrusion abuts against a portion of the side surface of the female seat accommodating part where the third end wall protrusion and the fourth end wall protrusion are not arranged.

[0034] In some exemplary embodiments according to the present application, the positioning feature may further include: second side wall protrusions respectively disposed at two opposite ends of the second side wall in the third direction and protruding toward the interior of the male seat accommodating part, wherein, in a state where the male connector is engaged with the female connector, the second side wall protrusions engage with a side surface of the female seat accommodating part of the female connector that is not provided with the third side wall protrusions and the fourth side wall protrusions. In this case, when the male connector and the female connector are in an assembled state, the male seat accommodating part of the male connector contacts the female seat accommodating part of the female connector through the first side wall protrusions and the second side wall protrusions, so that the mating of the male connector and the female connector can only be achieved in the correct orientation.

[0035] The electrical connector assembly provided by the present application enables each of the male connector and the female connector to have narrower terminals arranged in an array, thereby eliminating the need for wider conductive terminals and gaskets for supporting the conductive terminals, saving manufacturing costs and making the overall size of the electrical connector assembly smaller.

[0036] In addition, since the array form and the length of the conductive terminals (male terminals and female terminals) of the electrical connector assembly provided by the present application can be changed as needed, the overall configuration of the electrical connector assembly provided by the present application can be easily expanded or reduced as needed, thereby meeting the user's needs for electrical connector assemblies of different configurations.

[0037] Another aspect of the present application provides a board-to-board electrical connection device, which may include: a pair of printed circuit boards, and an electrical connector assembly provided according to the above-mentioned embodiment; the pair of printed circuit boards can be respectively connected to the male connector and the female connector in the electrical connector assembly, and when the male connector is engaged with the female connector, the pair of printed circuit boards are electrically connected to each other and form a configuration that is roughly parallel to each other.

[0038] In some exemplary embodiments according to the present application, the proximal end portion of the male terminal of each male terminal of the male connector can extend beyond the proximal side surface of the male seat accommodating member base of the male seat accommodating member and be connected to one of the paired printed circuit boards, and the proximal end portion of the female terminal of each female terminal of the female connector can extend beyond the proximal side surface of the female seat accommodating member base of the female seat accommodating member and be connected to the other of the paired printed circuit boards.

[0039] In some exemplary embodiments according to the present application, the proximal end portion of the male terminal extending beyond the proximal side surface of the base of the male terminal receiving part is formed to have an L-shaped bend, and the proximal end portion of the female terminal extending beyond the proximal side surface of the base of the female terminal receiving part is formed to have an L-shaped bend. The L-shaped bend of the male terminal and / or the L-shaped bend of the female terminal increases the connection area for connection with the corresponding printed circuit board, thereby increasing the connection strength with the corresponding printed circuit board and ensuring the reliability of the board-to-board electrical connection device. In addition, the L-shaped bend of the male terminal and / or the L-shaped bend of the female terminal is directly welded to the contact portion of the corresponding printed circuit board without the need to use additional welding balls to weld the male terminal and / or the female terminal to the corresponding printed circuit board, thereby making the board-to-board electrical connection device easier to manufacture and reducing the manufacturing cost.

[0040] In some exemplary embodiments according to the present application, the male connector may further include a first shell sleeved to the side wall of the male accommodating part of the male accommodating part, and the female connector may further include a second shell sleeved to the outer side of the female accommodating part base of the female accommodating part. When the first shell and the second shell are sleeved to the male connector and the female connector respectively and the male connector and the female connector in a connected state are connected to the printed circuit board, the board-to-board electrical connection device not only realizes electrical connection, but also realizes the transmission of current. Therefore, there is no need to use another connector dedicated to current transmission, thereby saving space and reducing costs.

[0041] In some exemplary embodiments according to the present application, the first shell may include: a first part sleeved on the first end wall, a second part sleeved on the second end wall, a third part sleeved on the first side wall, and a fourth part sleeved on the second side wall, the first part, the second part, the third part and the fourth part are all formed as a U-shaped part having a long side part and a short side part, and have an open end in the direction along the first direction toward the proximal side of the base of the male seat accommodating part, the first part, the second part, the third part and the fourth part are respectively sleeved on the first end wall, the second end wall, the first side wall and the second side wall in a detachable manner via the open ends, so that the long side part of the U-shaped part is engaged with the outer surfaces of the first end wall, the second end wall, the first side wall and the second side wall, and the short side part of the U-shaped part is engaged with the inner surfaces of the first end wall, the second end wall, the first side wall and the second side wall facing the inside of the male seat accommodating part.

[0042] In some exemplary embodiments according to the present application, the U-shaped piece constituting the first part, the second part, the third part and the fourth part of the first shell may include a plurality of first straight extensions and a plurality of first bent parts alternately arranged at the edge of the proximal side surface of the long side portion of the U-shaped piece close to the base of the male seat accommodating piece, the first bent part may include a first straight part arranged in the same plane as the first straight extension and a first bent part connected to the first straight part, in the direction along the first direction toward the proximal side of the base of the male seat accommodating piece, the end surface of the first straight extension is flush with the end surface of the first bent part of the first bent part, and the outer peripheral edge of the distal side surface of the base of the male seat accommodating piece may be With the first lugs comprising a plurality of first openings, when the first shell is sleeved onto the side wall of the male seat accommodating component, the first bent portion can be arranged between two adjacent first lugs or the first lug can be arranged between two adjacent first bent portions, the first straight extension portion of the first shell can be inserted through the first opening in the first lug and extend beyond the proximal side surface of the base of the male seat accommodating component, and the dimension of the first straight extension portion extending beyond the proximal side surface of the base of the male seat accommodating component can be the same as the dimension of the proximal end portion of the male terminal of the male terminal extending beyond the proximal side surface of the base of the male seat accommodating component, so that the male terminal of the male connector and the first shell can be soldered to the printed circuit board in the same plane.

[0043] In some exemplary embodiments according to the present application, in a direction along the first direction toward the proximal side of the base of the male seat accommodating member, the first shell can be connected to one of the paired printed circuit boards through the end surface of the first straight extension portion and the first bent portion of the first bent portion.

[0044] In some exemplary embodiments according to the present application, the short side portions of the U-shaped member constituting the first part, the second part, the third part and the fourth part of the first shell can be configured as an elastically deformable member, so that when the male connector is engaged with the female connector, the short side portions of the U-shaped member constituting the first part, the second part, the third part and the fourth part of the first shell respectively abut against the outer surface of the base of the female seat accommodating member of the female connector and apply a biasing force to the female connector toward the interior of the male seat accommodating member of the male connector.

[0045] In some exemplary embodiments according to the present application, the short side portion of the U-shaped member constituting the first part, the second part, the third part and the fourth part of the first shell may include a plurality of short side segments spaced apart from each other and extending in a direction along the first direction toward the proximal side of the base of the male seat accommodating member, each of the plurality of short side segments being connected to the long side portion of the U-shaped member via a corresponding intermediate connecting portion, each of the short side segments including a frame portion and an elastic overhang portion, one end of the elastic overhang portion being connected to the frame portion, and the other end of the elastic overhang portion being separated from the frame portion along the first direction to form a free end portion, and the free end portion of the elastic overhang portion being bent to protrude toward the interior of the male seat accommodating member, so that when the male connector is engaged with the female connector, the elastic overhang portion of each short side segment abuts against the outer surface of the base of the female seat accommodating member of the female connector and applies a biasing force to the female connector toward the interior of the male seat accommodating member of the male connector.

[0046] In some exemplary embodiments according to the present application, the inner surface of the side wall of the male seat accommodating member of the male seat connector may include a plurality of side wall grooves and a plurality of side wall protrusions arranged alternately, and the male seat accommodating member base of the male seat accommodating member of the male seat connector may include a plurality of receiving portions corresponding to the plurality of grooves, and the receiving portions may be recessed from the distal side surface of the male seat accommodating member base along the first direction toward the proximal side of the male seat accommodating member base.

[0047] In some exemplary embodiments according to the present application, a tip protrusion is provided at the end of each short side segment opposite to the middle connecting portion, and the tip protrusion can be aligned with the elastic overhanging portion of the short side segment in a first direction, so that when the first shell is sleeved onto the side wall of the male seat accommodating component, the elastic overhanging portion of the short side segment can be aligned with the side wall groove provided on the inner surface of the side wall of the male seat accommodating component, and the tip protrusion can be accommodated in a receiving portion corresponding to the groove.

[0048] In some exemplary embodiments according to the present application, a central portion of a free end portion of the elastic overhang portion may include a cantilever arm recessed portion, so that a pair of cantilever arm contact portions are formed at the free end portion of the elastic overhang portion.

[0049] In some exemplary embodiments according to the present application, the second shell may include: a third end wall shell and a fourth end wall shell that are respectively detachably mounted on the outer sides of the third end wall and the fourth end wall of the base of the female seat accommodating component in the third direction; and a third side shell and a fourth side shell that are respectively detachably mounted on the outer sides of the third side and the fourth side of the base of the female seat accommodating component in the second direction, each of the third end wall shell, the fourth end wall shell, the third side shell and the fourth side shell may include a shell fixing portion configured to engage with an edge of a distal side surface of the base of the female seat accommodating component and a shell attachment portion configured to be adjacent to a proximal side surface of the base of the female seat accommodating component.

[0050] In some exemplary embodiments according to the present application, the edge of the distal side surface of the base of the female seat accommodating piece may include fixing recesses arranged at intervals, and the shell fixing portion may include a plurality of abutting portions and a plurality of fixing mounting portions arranged alternately, the fixing mounting portions being configured to bend toward the base of the female seat accommodating piece and engage into the fixing recesses, and optionally, the abutting portions are bent toward the base of the female seat accommodating piece and abut against the edge of the distal side surface of the base of the female seat accommodating piece.

[0051] In some exemplary embodiments according to the present application, the edge of the proximal side surface of the base of the female seat accommodating piece may include a plurality of second lugs arranged at intervals, each second lug includes a second orifice, the shell attachment portion may include a plurality of second straight extensions and a plurality of second bent portions arranged alternately, the second bent portion includes a second straight portion arranged in the same plane as the second straight extension and a second bent portion connected to the second straight portion, in the direction along the first direction toward the proximal side of the base of the female seat accommodating piece, the end surface of the second straight extension is flush with the end surface of the second bent portion of the second bent portion, and, in the second shell When sleeved onto the outer side of the base of the female seat accommodating part, the second bent portion can be arranged between two adjacent second lugs or the second lug can be arranged between two adjacent second bent portions, and the second straight extension portion of the second shell is inserted through the second opening in the second lug and extends beyond the proximal side surface of the base of the female seat accommodating part, and the dimension of the second straight extension portion extending beyond the proximal side surface of the base of the female seat accommodating part is the same as the dimension of the proximal end portion of the female terminal of the female terminal extending beyond the proximal side surface of the base of the female seat accommodating part, so that the female terminal of the female connector and the second shell can be connected to the printed circuit board in the same plane.

[0052] In some exemplary embodiments according to the present application, in the direction along the first direction toward the proximal side of the base of the female seat accommodating member, the second shell is connected to one of the paired printed circuit boards through the end surface of the second straight extension portion and the second bent portion of the second bent portion.

[0053] The electrical connector assembly and the electrical connection device including the electrical connector assembly provided by the present application adopt an array-shaped arrangement structure of conductive terminals, and the male terminals of the male connector of the electrical connector assembly in two adjacent rows or columns have different heights in the first direction, thereby increasing the number of conductive terminals of the electrical connector assembly. In addition, the number of rows and columns in the electrical connector assembly and the dimensions of the male and female terminals in the first direction can be customized according to actual needs, thereby realizing a modular design of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0055] Figure 1A and Figure 1B A top perspective view and a bottom perspective view of a male socket connector provided in some embodiments according to an aspect of the present disclosure are respectively shown;

[0056] Figure 2 Shows Figure 1A and Figure 1B The male connector is flipped 180° and then exploded.

[0057] Figure 3A and Figure 3B 1 and 2 respectively show a side view and a cross-sectional view of a male socket connector provided in accordance with other embodiments of an aspect of the present disclosure, Figure 3C Shows Figure 3B A detailed enlarged view of the M part;

[0058] Figure 4 Shows Figure 2 A top perspective view of a male socket receiving member of the male socket connector shown;

[0059] Figure 5 Shows Figure 3A The male socket receiving member of the male socket connector is shown as a top perspective view after being flipped 180°;

[0060] Figure 6 A stereoscopic view of a male socket terminal of a male socket connector provided according to some embodiments of the present application is shown;

[0061] Figure 7 A stereoscopic view of a male socket terminal of a male socket connector provided according to some other embodiments of the present application is shown;

[0062] Fig. 8A and Figure 8B 1 shows a top view and a cross-sectional view of a male connector provided in some further embodiments according to one aspect of the present application, Figure 8C Shows Figure 8B A detailed enlarged view of part N in FIG.

[0063] Fig. 9 A top perspective view of a female connector provided in some embodiments according to another aspect of the present application is shown;

[0064] Fig.10 Shows Fig. 9 A three-dimensional exploded view of the female connector;

[0065] Fig.11A and Fig. 11B They are shown respectively Fig. 9 A side view and a cross-sectional view of a female connector;

[0066] Fig.12 A top perspective view of a female connector provided in some other embodiments according to another aspect of the present application is shown;

[0067] Fig.13 A stereoscopic view of a female socket terminal of a female socket connector provided in some embodiments according to another aspect of the present application is shown;

[0068] Fig.14 A top perspective view of an electrical connector assembly in an assembled state provided in some embodiments according to a further aspect of the present application is shown;

[0069] Fig.15 Shows Fig.14 A bottom perspective view of the electrical connector assembly in an assembled state;

[0070] Fig.16 Shows Fig.14 and Fig.15 An exploded perspective view of the electrical connector assembly shown;

[0071] Fig.17A and Fig. 17B They are shown respectively Fig.14 and Fig.15 A side view and a cross-sectional view of an electrical connector assembly;

[0072] Fig.18 Shown along Fig.14 A schematic cross-sectional view of the electrical connector assembly taken along line DD;

[0073] Fig.19 Shows Fig.14 A top plan view of the electrical connector assembly in an assembled state;

[0074] Fig. 20 An exploded perspective view of a board-to-board electrical connection device provided in some embodiments according to another aspect of the present application is shown;

[0075] Fig.21 Shows Fig. 20 A bottom perspective view of a printed circuit board, a male connector and a first housing in a connected state of a board-to-board electrical connection device;

[0076] Fig. 22 Shows Fig. 20 A three-dimensional view of the printed circuit board, the male connector and the first housing in a connected state after being flipped 180 degrees;

[0077] Fig.23 Shows Fig. 20 An exploded schematic diagram of a male connector and a first housing of an electrical connection device;

[0078] Fig.24 Shows Fig. 20 A perspective view of a portion of a first housing of an electrical connection device;

[0079] Fig.25 Shows Fig. 20 A top perspective view of a printed circuit board, a female connector and a second housing of an electrical connection device in a connected state;

[0080] Fig.26 Shows Fig. 20 An exploded perspective view of a female connector and a second housing in an electrical connection device;

[0081] Fig. 27 Shows Fig. 20 A perspective view of a portion of a second housing of an electrical connection device; and

[0082] Fig.28A and Fig.28B They are shown respectively Fig. 20 A top plan view and a schematic cross-sectional view of an electrical connection device in a connected state, Fig.28C Shows Fig.28B A detailed enlarged view of the S part. DETAILED DESCRIPTION

[0083] The present application will be described in detail below with reference to the accompanying drawings by means of exemplary embodiments. It should be noted that the exemplary embodiments of the present application are intended to enable a person of ordinary skill in the art to easily implement the present application, and the various embodiments of the present application can be implemented in many different forms and should not be interpreted as being limited to the embodiments described in the present application. Accordingly, the following detailed description of the present application is only for illustrative purposes and is by no means a limitation of the present application. In addition, the same figure numbers are used in the various drawings to represent the same components. In addition, the terms "first", "second", etc. are only for the purpose of convenience of description and are not to be understood as indicating or implying relative importance or relative order.

[0084] It should also be noted that, for the sake of clarity, not all features of the actual specific implementation are described and shown in the specification and drawings, and in order to avoid unnecessary details obscuring the technical solution that the present application focuses on, only the device structure closely related to the technical solution of the present application is described and shown in the drawings and the specification, while other details that are not closely related to the technical content of the present application and are known to those skilled in the art are omitted.

[0085] It should be understood that the orientations or positional relationships indicated by terms such as "inside", "outside", "front", and "rear" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0086] Board-to-board connectors are widely used in electronic products to achieve signal transmission between two circuit boards. Generally, a board-to-board connector includes a male connector and a female connector that can be plugged into each other. The male connector and the female connector are respectively welded to the corresponding circuit board through the welding parts of their respective conductive terminals, thereby limiting the relative movement of the connectors relative to the corresponding circuit board. When the male connector and the female connector are plugged into each other, the electrical connection between the two circuit boards can be achieved.

[0087] One aspect of the present application provides a male connector, referring to Figures 1A to 8C. In some exemplary embodiments, the male connector 10 defines: a thickness extending along a first direction Y; a width extending along a second direction X perpendicular to the first direction Y; and a length extending along a third direction Z perpendicular to both the first direction Y and the second direction X. It can be understood by those skilled in the art that the first direction Y is also referred to as the thickness direction or height direction of the male connector 10, the second direction X is also referred to as the width direction of the male connector 10, and the third direction Z is also referred to as the length direction of the male connector 10. The male connector 10 may include a plurality of male terminals 11 arranged in a male terminal array and a male receptacle 12 for accommodating the male terminals 11, wherein the lengths of two adjacent rows of male terminals arranged along the second direction X or two adjacent columns of male terminals arranged along the third direction Z in the first direction Y of the male connector 10 are different from each other.

[0088] Specifically, in some examples, such as Figure 3B As shown, the lengths of two adjacent rows of male terminals 11 arranged along the second direction X in the first direction Y are different from each other.

[0089] In some exemplary embodiments according to the present application, the male terminal array includes at least three rows and / or at least three columns of male terminals, Figure 1A and Figure 1B The male terminals 11 arranged in the same row or column have the same length in the first direction Y, and the male terminals in the male terminal array are arranged to have the same size and configuration every two rows or every two columns, such as Figure 3B shown.

[0090] Specifically, in some examples according to the exemplary embodiments of the present application, for example, Figure 3B As can be seen in the figure, the male terminals 11 in the first row starting from the left side in the second direction X can be the same length as the male terminals 11 in the fourth row in the first direction Y; the male terminals 11 in the second row starting from the left side in the second direction X can be the same length as the male terminals 11 in the fifth row in the first direction Y; the male terminals in the third row starting from the left side in the second direction X can be the same length as the male terminals in the sixth row in the first direction Y.

[0091] In some exemplary embodiments according to the present application, the male terminals in the same row or column of the male terminal array can be arranged regularly in other ways. In some examples, the male terminals in the male terminal array can also be arranged so that every other row or column has the same size and configuration.

[0092] Optionally, those skilled in the art may understand that, in some exemplary embodiments according to the present application, the lengths of the male terminals 11 arranged in the same row or column in the male terminal array in the first direction Y may be different from each other (not shown).

[0093] In some exemplary embodiments according to the present application, Figure 6 As shown, the male terminal 11 can be formed into a straight columnar member. In some examples, the male terminal 11 can include a male terminal proximal portion 110, a male terminal distal portion 111, and an intermediate connecting portion 112 connecting the male terminal proximal portion 110 and the male terminal distal portion 111. The outer contour dimension W1 of the male terminal distal portion 111 in the second direction X can be smaller than the outer contour dimension W2 of the male terminal proximal portion 110 in the second direction X.

[0094] Optionally, in some examples, the outer contour dimension of the distal end portion 111 of the male terminal in the third direction Z may be smaller than the outer contour dimension of the proximal end portion 110 of the male terminal in the third direction Z (not shown).

[0095] In some exemplary embodiments according to the present application, Figure 7 As shown, the male terminal can be formed into a curved columnar member. Similar to the case where the male terminal is formed into a straight columnar member, the outer contour dimension of the male terminal distal end portion 111 in the second direction X can be smaller than the outer contour dimension of the male terminal proximal end portion 110 in the second direction X, and optionally, the outer contour dimension of the male terminal distal end portion 111 in the third direction Z is smaller than the outer contour dimension of the male terminal proximal end portion 110 in the third direction Z.

[0096] In some exemplary embodiments according to the present application, the straight male terminal is suitable for the case where the male connector has a smaller size in the first direction Y, and the curved male terminal is suitable for the case where the male connector has a larger size in the first direction Y. Alternatively, the straight male terminal and the curved male terminal can be used together in the male connector, and the curved design of the middle connecting portion of the curved male terminal makes it possible to share the same printed circuit board with the straight male terminal, thereby providing sufficient terminal strength for the male connector.

[0097] In some exemplary embodiments according to the present application, Figure 4 and Figure 5 Combined with Figure 3BAs shown, the male seat accommodating member 12 of the male seat connector 10 may include a male seat accommodating member base 13. The male seat accommodating member base 13 may include a plurality of male seat accommodating member through holes 14 arranged in the form of an array identical to the male seat terminal array. Each male seat terminal 11 of the male seat connector 10 may extend through a corresponding one of the plurality of male seat accommodating member through holes 14, respectively, so that the male seat terminal distal end portion 111 of each male seat terminal 11 extends beyond the distal side surface 121 of the male seat accommodating member base 13, and the male seat terminal proximal end portion 110 of each male seat terminal extends beyond the proximal side surface 120 of the male seat accommodating member base 13. The male seat terminal distal end portion 111 extending beyond the distal side surface 121 of the male seat accommodating member base 13 is connected to the female seat terminal, and the male seat terminal proximal end portion 110 extending beyond the proximal side surface 120 of the male seat accommodating member base 13 is connected to the printed circuit board. It should be noted that, for the sake of simplicity, Figure 2 , Figure 4 and Figure 5 Only some of the plurality of male socket receiving part through holes are shown. The male socket terminal 11 passes through the male socket receiving part through hole 14 and is formed into an integral piece with the male socket receiving part 12 .

[0098] In some exemplary embodiments according to the present application, Figure 3C and Figure 8C As shown, the male seat accommodating part through hole 14 of the male seat accommodating part base 13 of the male seat accommodating part 12 of the male seat connector 10 may include a male seat accommodating part through hole distal end portion 140 for accommodating the male seat terminal distal end portion 111 in a form-fitting manner and a male seat accommodating part through hole proximal end portion 141 for accommodating the male seat terminal proximal end portion 110 in a form-fitting manner, and the dimension D1 of the male seat accommodating part through hole distal end portion 140 in the second direction X is smaller than the dimension D2 of the male seat accommodating part through hole proximal end portion 141 in the second direction X. In some exemplary embodiments, the dimension of the male seat accommodating part through hole distal end portion 140 in the third direction Z is smaller than the dimension of the male seat accommodating part through hole proximal end portion 141 in the third direction Z.

[0099] It should be understood that the term "form-fit" used in the present application refers to the relationship in which two mutually cooperating parts abut against each other and are tightly combined in terms of shape and position.

[0100] Those skilled in the art will appreciate that, since the dimension D1 of the distal end portion 140 of the male seat accommodating component through hole in the second direction X is smaller than the dimension D2 of the proximal end portion 141 of the male seat accommodating component through hole in the second direction X, good support is provided for the male seat terminal whose distal end portion also has a smaller dimension than the proximal end portion in the second direction X.

[0101] In some exemplary embodiments according to the present application, reference Figure 6 and Figure 7 Combined with Figure 3C The proximal portion 110 of the male terminal may include at least one protrusion 1120 extending and protruding from opposite sides of the proximal portion 110 of the male terminal along the second direction X and arranged adjacent to the proximal end of the proximal portion 110 of the male terminal. The protrusion 1120 may be configured to gradually shrink from the proximal portion side of the male terminal toward the distal portion side of the male terminal along the first direction Y. When the proximal portion 110 of the male terminal is accommodated in the proximal portion 141 of the male receiving part through hole, the protrusion 1120 abuts against two inner side surfaces of the proximal portion 141 of the male receiving part through hole opposite to each other in the second direction X, thereby forming an interference fit with the proximal portion 141 of the male receiving part through hole, so that the male terminal 11 can be stably received in the male receiving part through hole 14, thereby preventing the male terminal 11 from being accidentally pulled out of the male receiving part through hole 14.

[0102] In some exemplary embodiments according to the present application, the intermediate connection portion 112 may include a bent portion ( Figure 7 ), the bent portion can be configured to extend between the proximal portion 110 of the male terminal and the distal portion 111 of the male terminal so that the central axis L1 of the proximal portion 110 of the male terminal extending along the first direction Y and the central axis L2 of the distal portion 111 of the male terminal extending along the first direction Y are offset from each other by a certain distance L in the third direction Z. When the male terminal 11 is accommodated in the male receiving part through hole 14, the outer side surface of the proximal portion 110 of the male terminal away from the central axis L1 of the proximal portion 110 of the male terminal in the third direction Z abuts against the inner side surface of the proximal portion 141 of the male receiving part through hole in the third direction Z ( Figure 8C ). Thus, the male seat receiving part through hole proximal portion 141 can provide stable support for the male seat terminal proximal portion 110, so that the male seat terminal 11 can be stably received in the male seat receiving part through hole 14. In some examples, the distance by which the central axis L1 of the male seat terminal proximal portion 110 and the central axis L2 of the male seat terminal distal portion 111 are offset from each other in the third direction Z is approximately equal to half of the difference between the size of the male seat receiving part through hole proximal portion 141 in the third direction Z and the size of the male seat receiving part through hole distal portion 140 in the third direction Z.

[0103] In some examples, the bent portion of the intermediate connection portion 112 may be formed by permanent deformation. It will be appreciated by those skilled in the art that in order to ensure that the size of the proximal end portion 110 of each male terminal extending beyond the proximal side surface 120 of the male terminal receiving member base 13 is consistent, the size of the proximal end portion of each male terminal in the plurality of male terminals from the intermediate connection portion to the proximal end portion of the male terminal is configured to be consistent.

[0104] In addition, those skilled in the art can also understand that the bent portion of the intermediate connecting portion 112 can also be used as a stopper, so that: when the male terminal 11 is inserted into the male receiving part through hole 14, the proximal end portion 110 of the male terminal is close to the inner surface of the proximal end portion 141 of the male receiving part through hole due to the bent portion, thereby preventing the male terminal 11 from being excessively inserted into the male receiving part through hole 14, thereby preventing the distal end portion 111 of the male terminal from extending beyond the size of the distal side surface 110 of the male receiving part base 13 beyond a preset size, such as Figure 8C shown.

[0105] Although in the illustrated embodiment, the protrusion 1120 extends and protrudes along the second direction X, and / or the central axis L1 of the proximal portion 110 of the male terminal and the central axis L2 of the distal portion 111 of the male terminal are offset from each other in the third direction Z, it can be understood by those skilled in the art that the protrusion 1120 can be configured to extend and protrude along the third direction Z, and / or the central axis L1 of the proximal portion 110 of the male terminal and the central axis L2 of the distal portion 111 of the male terminal are offset from each other in the second direction X. In addition, it can be understood by those skilled in the art that, in the case of the same male terminal configuration, the arrangement orientation of the male terminal can be adjusted / changed to meet the use requirements of different male connectors. For example, based on the illustrated embodiment, the male terminals in the male terminal array can be uniformly arranged in a clockwise or counterclockwise direction by rotating 90 degrees or 180 degrees according to the use requirements of different male connectors. Those skilled in the art can understand that this modification in the arrangement can still solve the technical problem to be solved by the present application and achieve the expected technical effect, and therefore this variation or modification is still within the protection scope of the present application.

[0106] In some exemplary embodiments according to the present application, reference Figure 4 and Figure 5 The male socket accommodating part 12 of the male socket connector 10 may include a male socket accommodating part side wall 126 extending from the outer peripheral edge of the male socket accommodating part base 13 along the first direction Y. The male socket accommodating part side wall 126 is formed integrally with the male socket accommodating part base 13, and the dimension of the male socket accommodating part side wall 126 in the first direction Y is greater than the dimension of the portion of the male socket terminal 14 extending beyond the distal side surface 121 of the male socket accommodating part base 13.

[0107] In some examples, the male seat receiving part side wall 126 can be formed as an integral part with the male seat receiving part base 13 by injection molding. This manufacturing method is simple in process and the shape of the housing can be easily changed as needed to adapt to various installation requirements, so that customized production can be carried out according to user needs to improve production flexibility and significantly reduce manufacturing costs.

[0108] According to another aspect of the present application, a female connector is provided, referring to Figures 9 to 13 In some exemplary embodiments according to the present application, the female connector 20 has: a first direction Y defining the thickness (height) extension direction of the female connector; a second direction X defining the width dimension of the female connector and being perpendicular to the first direction Y; and a third direction Z defining the longitudinal extension direction of the female connector, the third direction Z being perpendicular to the first direction Y and the second direction X, respectively. The female connector 20 may include a plurality of female terminals 21 arranged in a female terminal array and a female accommodating member 22 for accommodating the female terminals 21. In the female terminal array, the female terminals 21 are arranged in rows along the second direction X and in columns along the third direction Z.

[0109] Those skilled in the art can understand that the first direction Y of the female connector can also be called the thickness direction or height direction of the female connector, the second direction X of the female connector can also be called the width direction of the female connector, and the third direction Z of the female connector can also be called the length direction of the female connector.

[0110] In some exemplary embodiments according to the present application, reference Fig. 11B , the size of each of the plurality of female socket terminals 21 in the first direction Y may be the same. This facilitates the matching of the male socket connector and the female socket connector.

[0111] Alternatively, in other exemplary embodiments according to the present application, the lengths of the mother socket terminals arranged in the same row or column in the mother socket terminal array in the first direction may be the same, and the lengths of the mother socket terminals in adjacent rows or adjacent columns in the mother socket terminal array in the first direction may be different.

[0112] In some exemplary embodiments according to the present application, reference Fig.13 , the female terminal 21 of the female connector 20 may include a female terminal proximal portion 210 and a female terminal distal portion 211. The female terminal proximal portion 210 may be formed as a plate-shaped portion to provide sufficient strength for the connection between the female terminal and the printed circuit board and the connection between the female terminal and the male terminal. The female terminal distal portion 211 may include a pair of leg portions cantilevered from the distal end of the female terminal proximal portion 210, and the pair of leg portions may include a first leg portion 2110 and a second leg portion 2111, and the first leg portion 2110 and the second leg portion 2111 may be formed as: spaced apart at a portion adjacent to the female terminal proximal portion 210, and close to each other at a free end away from the female terminal proximal portion 210 to form a clamping portion. When the male connector is connected to the female connector, the male terminal distal portion 111 of the male terminal 11 is inserted into the clamping portion of the female terminal to form an electrical connection.

[0113] In some exemplary embodiments according to the present application, reference Fig.13 The first leg 2110 may include a first leg proximal portion 2113 adjacent to the proximal portion 210 of the female terminal and a first leg distal portion 2112 away from the proximal portion 210 of the female terminal, the second leg 2111 may include a second leg proximal portion 2115 adjacent to the proximal portion 210 of the female terminal and a second leg distal portion 2114 away from the proximal portion 210 of the female terminal, and the distance between the first leg distal portion 2112 and the second leg distal portion 2114 is smaller than the distance between the first leg proximal portion 2113 and the second leg proximal portion 2115. When the male terminal 11 of the male connector 10 is inserted into the female terminal of the female connector 20, the distance between the first leg distal portion 2112 and the second leg distal portion 2114 gradually increases, thereby providing reliable stability for the connection between the male connector and the female connector.

[0114] In some exemplary embodiments according to the present application, reference is also made to Fig.13 The first leg-shaped portion distal end 2112 may include a first flat portion 2118 continuous with the first leg-shaped portion proximal end 2113 and a first spiral portion 2116 spirally extending from the first flat portion 2118 along a first spiral direction to gradually move away from the first flat portion 2118. The first flat portion 2118 and the first leg-shaped portion proximal end 2113 are in the same plane, and the first spiral portion 2116 is formed by twisting the first flat portion 2118 outward and upward. Fig.13 As seen in FIG. 2 , the first spiral portion 2116 may be formed in a wavy shape, thereby forming a protrusion in the center of the first spiral portion 2116 .

[0115] In some exemplary embodiments according to the present application, Fig.13 As shown, the distal end portion 2114 of the second leg-shaped portion may include a second flat portion 2119 continuous with the proximal end portion 2115 of the second leg-shaped portion and a second spiral portion 2117 spirally extending from the second flat portion 2119 along a second spiral direction opposite to the first spiral direction to gradually move away from the second flat portion 2119. The second flat portion 2119 and the proximal end portion 2115 of the second leg-shaped portion are in the same plane, and the second spiral portion 2117 is formed by twisting the second flat plate outward and upward. Fig.13 As seen in FIG. 2 , the second spiral portion 2117 may also be formed in a wavy shape, thereby forming a protrusion in the center of the second spiral portion 2117 .

[0116] In some exemplary embodiments according to the present application, the first spiral portion 2116 and the second spiral portion 2117 are configured to be spaced apart from each other and face each other, and the distance between the first spiral portion 2116 and the second spiral portion 2117 is smaller than the distance between the first leg-shaped portion proximal end portion 2113 and the second leg-shaped portion proximal end portion 2115, thereby forming a clamping portion. When the male terminal is inserted into the female terminal, the male terminal distal end portion 111 contacts the protrusion of the first spiral portion 2116 and the protrusion of the second spiral portion 2117 at the same time, thereby providing reliability for the connection between the male connector 10 and the female connector 20.

[0117] In some examples according to the exemplary embodiments of the present application, reference is made to Fig. 9 and Fig.12 Combined with Fig. 11B , the female socket accommodating part 22 of the female socket connector 20 may include a female socket accommodating part base 23. The female socket accommodating part base 23 may include a plurality of female socket accommodating part through holes 24 arranged in the same array form as the female socket terminal array, and each female socket terminal of the female socket connector 20 is respectively accommodated in a corresponding one of the plurality of female socket accommodating part through holes 24, so that the female socket terminal distal end portion 211 of each female socket terminal 21 is not visible from the distal side surface 230 of the female socket accommodating part base, and the female socket terminal proximal end portion 210 of each female socket terminal 21 extends beyond the proximal side surface 220 of the female socket accommodating part base 23. It should be noted that in Fig.12 In the figure, for the sake of simplicity, only some of the multiple female seat receiving part through holes are schematically shown.

[0118] In some exemplary embodiments according to the present application, for example, Fig. 11B As can be seen in the figure, the distal end portion 211 of the female socket terminal 21 is spaced a certain distance from the distal side surface 230 of the female socket receiving part base 23, so that the distal end portion 211 of the female socket terminal 21 is not visible from the distal side surface 230 of the female socket receiving part base, that is, the female socket terminal 21 is not visible when observed from the outside of the female socket connector 20.

[0119] Alternatively, the female base terminal of the female base connector can be configured to have other suitable shapes suitable for engaging with the male base terminal distal end portion of the male base terminal. For example, in some examples, the female base terminal distal end portion for contacting the male base terminal distal end portion can be formed as a straight rod-shaped portion.

[0120] According to another aspect of the present application, an electrical connector assembly is provided, referring to Figures 14 to 19In some embodiments according to the present application, the electrical connector assembly 100 may include a male connector 10 and a female connector 20 provided in the above-mentioned embodiment arranged in pairs, and when the male connector 10 and the female connector 20 are engaged with each other, the distal side surface 121 of the male seat accommodating member base 13 and the distal side surface 230 of the female seat accommodating member base 23 face each other in the first direction Y, so that a plurality of male terminals 11 arranged in a male terminal array can be engaged with a plurality of female terminals 21 arranged in a female terminal array in a one-to-one correspondence to form an electrical connection.

[0121] It will be understood by those skilled in the art that, when the male connector 10 and the female connector 20 are engaged with each other, the first direction of the male connector (that is, the thickness direction or the height direction of the male connector) is consistent with the first direction of the female connector (that is, the thickness direction or the height direction of the female connector), the second direction of the male connector (that is, the width direction of the male connector) is consistent with the second direction of the female connector (that is, the width direction of the female connector), and the third direction of the male connector (that is, the length direction of the male connector) is consistent with the length direction of the female connector (that is, the length direction of the female connector).

[0122] As mentioned above, the lengths of the male terminals of two adjacent rows or columns in the male terminal array of the male connector 10 in the first direction Y may be different from each other. Thus, the forces when connecting the male connector 10 to the female connector 20 and separating the male connector 10 from the female connector may act on the male terminal 11 at different times, so that the connection force / separation force may be dispersed throughout the entire connection / separation process without generating a large force on the male terminal at the same time, thereby reducing the force to be applied by the user when connecting / separating the male connector and the female connector, and reducing the difficulty of connecting / separating the male connector and the female connector.

[0123] In some exemplary embodiments according to the present application, Fig. 17BAs shown, in the state where the male connector 10 is engaged with the female connector 20, the male terminal distal end portion 111 of each male terminal of the male connector 10 is inserted into a corresponding female accommodating member through hole among the multiple female accommodating member through holes 24 of the female accommodating member 22 of the female connector 20 along the first direction Y, and is engaged with the female terminal distal end portion 211 of the female terminal 21 accommodated in the corresponding female accommodating member through hole to form an electrical connection. More specifically, the male terminal distal end portion 111 is engaged with the first spiral portion 2116 and the second spiral portion 2117 of the female terminal distal end portion 211 and is clamped between the first spiral portion 2116 and the second spiral portion 2117. It can be understood by those skilled in the art that the first spiral portion 2116 and the second spiral portion 2117 of the female terminal distal end portion 211 simultaneously contact and clamp the male terminal distal end portion 111, which provides reliability for the connection between the male connector 10 and the female connector 20, thereby preventing the male terminal from being accidentally pulled out.

[0124] It will be understood that the term "distal end" used in the description of the present application refers to the side of the female connector and the male connector facing each other when the female connector and the male connector are connected, and the term "proximal end" refers to the side facing away from the male connector and the male connector when the female connector and the male connector are connected.

[0125] In some exemplary embodiments according to the present application, the male seat accommodating part 12 and the female seat accommodating part 22 respectively include positioning features for forming a form-fitting when the male seat connector 10 is engaged with the female seat connector 20. The male seat accommodating part 12 and the female seat accommodating part 22 are engaged through the corresponding positioning features, thereby preventing the male seat connector 10 and the female seat connector 20 from having a mating orientation flip / misalignment problem when mating, thereby providing guidance for the mating of the male seat connector 10 and the female seat connector 20.

[0126] In some exemplary embodiments according to the present application, reference Figure 4 and Figure 5 , the male seat accommodating part side wall 126 of the male seat accommodating part 12 may include a first end wall 138 and a second end wall 139 opposite to each other in the third direction Z. The positioning feature for the male seat accommodating part 12 may include a male seat accommodating part base recess 131, which is respectively formed at two opposite ends of the distal side surface 121 of the male seat accommodating part base 13 of the male connector 10 in the third direction Z. The first end wall 138, the second end wall 139 and the corresponding male seat accommodating part base recess 131 together form a groove 150 ( Fig.18 ). Reference Fig. 9 and Fig.12The positioning feature portion for the female seat accommodating part 22 may include a third end wall 251 and a fourth end wall 252 arranged at opposite ends of the female seat accommodating part base 23 along the third direction Z, and the third end wall 251 and the fourth end wall 252 are configured to extend beyond the distal side surface 230 of the female seat accommodating part base 23 along the first direction Y, so that: when the male seat connector 10 is engaged with the female seat connector 20, the third end wall 251 and the fourth end wall 252 are respectively embedded in the corresponding groove 150, as shown in FIG. Fig.18 When the male connector 10 is mated with the female connector 20, the third end arm 251 and the fourth end arm 252 are first embedded in the groove 150. Therefore, the third end arm 251 and the fourth end arm 252 provide guidance for the mating of the male connector 10 and the female connector 20.

[0127] In some exemplary embodiments according to the present application, reference is still made to Figure 4 and Figure 5 , the male seat receiving part side wall 126 may include a first side wall 122 and a second side wall 123 opposite to each other in the second direction X, and the positioning feature portion may also include a first side wall recessed portion 1221 respectively provided at two opposite ends of the first side wall 122 in the third direction Z, and a first side wall protrusion 124 protruding toward the inside of the male seat receiving part 12 and provided between the two first side wall recessed portions 1221 adjacent to a corresponding one of the two first side wall recessed portions 1221. That is, the positioning feature portion for the male seat receiving part 12 may also include a first side wall recessed portion 1221 and a first side wall protrusion 124. Alternatively, the first side wall protrusion may also be provided to be spaced apart from the first side wall recessed portion 1221.

[0128] In some exemplary embodiments according to the present application, reference Fig. 9 and Fig.12 On one side of the third end wall 251 and the fourth end wall 252 of the female seat accommodating part 22 corresponding to the first side wall 122 of the male seat accommodating part 12 along the second direction X, a third end wall protrusion 2511 and a fourth end wall protrusion 2521 are respectively provided, extending beyond the side surface of the female seat accommodating part base 23 along the second direction X. In other words, the positioning feature portion for the female seat accommodating part 22 may also include the third end wall protrusion 2511 and the fourth end wall protrusion 2521.

[0129] In some exemplary embodiments according to the present application, reference Fig.19When the male connector 10 is engaged with the female connector 20, the third end wall protrusion 2511 and the fourth end wall protrusion 2521 of the female seat accommodating part 22 of the female connector 20 are respectively engaged in a form-fitting manner with the corresponding first side wall recessed part 1221 provided in the first side wall 122 of the male connector 10, and the first side wall protrusion 124 abuts against the part of the side surface of the female seat accommodating part 22 where the third end wall protrusion 2511 and the fourth end wall protrusion 2521 are not provided.

[0130] In some exemplary embodiments according to the present application, reference Figure 4 , Figure 5 and Fig.19 The positioning feature may also include a second side wall protrusion 125 respectively disposed at two opposite ends of the second side wall 123 in the third direction Z and protruding toward the inside of the male seat accommodating part 12, and when the male connector 10 is engaged with the female connector 20, the second side wall protrusion 125 is engaged with the side surface of the female seat accommodating part 22 of the female connector 20 which is not provided with the third end wall protrusion 2511 and the fourth end wall protrusion 2521. In this case, when the male connector 10 and the female connector 20 are in an assembled state, the male seat accommodating part of the male connector 10 contacts the female seat accommodating part 22 of the female connector 20 through the second side wall protrusion 125 and the first side wall protrusion 124, so that the mating of the male connector 10 and the female connector 20 can only be achieved in the correct orientation.

[0131] In some exemplary embodiments according to the present application, the distance between the third end wall 251 and the fourth end wall 252 of the female socket accommodating member 22 of the female socket connector 20 is slightly larger than the distance between the first end wall 138 and the second end wall 139 of the male socket connector 10, so that: when the male socket connector 10 is mated with the female socket connector 20, the corresponding male socket terminal can be inserted into the corresponding female socket terminal, thereby preventing misaligned connection between the male terminal and the female terminal, and thus preventing damage to the male connector and the female connector.

[0132] In some examples, each of the male and female receptacles are fabricated from a heat-resistant, electrically insulating material.

[0133] According to another aspect of the present application, a board-to-board electrical connection device is provided, referring to Figures 20 to 28CIn some exemplary embodiments, the electrical connection device 200 may include a pair of printed circuit boards 60 and an electrical connector assembly 100 provided according to the above aspects, the pair of printed circuit boards 60 being respectively connected to a male connector 10 and a female connector 20 in the electrical connector 100 assembly, and when the male connector 10 is engaged with the female connector 20, the pair of printed circuit boards 60 are electrically connected to each other and form a configuration that is substantially parallel to each other.

[0134] In some exemplary embodiments according to the present application, the male terminal proximal portion 110 of each male terminal 11 of the male connector 10 can extend beyond the proximal side surface 120 of the male accommodating member base 13 of the male accommodating member 12 and be connected to one of the paired printed circuit boards 60, and the female terminal proximal portion 210 of each female terminal 21 of the female connector 20 can extend beyond the proximal side surface 220 of the female accommodating member base 23 of the female accommodating member and be connected to the other of the paired printed circuit boards 60, as shown in FIG. Fig. 22 and Fig.25 shown.

[0135] In some exemplary embodiments according to the present application, the male terminal proximal end portion 110 of the male terminal 11 extending beyond the proximal side surface 120 of the male terminal receiving member base 13 may be formed to have an L-shaped bent portion 1101 ( Figure 7 ), and the female base terminal proximal end portion 210 of the female base terminal 21 extending beyond the proximal side surface 220 of the female base accommodating member base 23 can be formed to have an L-shaped bent portion 2101 ( Fig.13 ). The L-shaped bent portion 1101 of the male terminal 11 can be connected to the contact portion 61 of the printed circuit board 60, and the L-shaped bent portion 2101 of the female terminal 21 can be connected to the contact portion 61 of another printed circuit board. In some examples, the L-shaped bent portion 1101 of the male terminal 11 and / or the L-shaped bent portion 2101 of the female terminal 21 can be formed by first thinning the proximal end of the male terminal 11 and / or the female terminal 21 and then bending it. The L-shaped bent portion 1101 of the male terminal 11 and / or the L-shaped bent portion 2101 of the female terminal 21 increases the contact area for connection with the corresponding printed circuit board, thereby increasing the connection strength between the corresponding printed circuit board and ensuring the reliability of the board-to-board electrical connection device. In addition, the L-shaped bent portion 1101 of the male terminal 11 and / or the L-shaped bent portion 2101 of the female terminal 21 are directly soldered to the contact portion of the corresponding printed circuit board without the need to use additional soldering balls to solder the male terminal 11 and / or the female terminal 21 to the corresponding printed circuit board, thereby making the board-to-board electrical connection device easier to manufacture and reducing manufacturing costs.

[0136] In some exemplary embodiments according to the present application, reference Fig.23 and Fig.26 , the male connector 10 may also include a first shell 40 sleeved to the male seat accommodating part side wall 126 of the male seat accommodating part 12, and the female connector 20 may also include a second shell 50 sleeved to the outer side of the female seat accommodating part base 23 of the female seat accommodating part 22. In some examples, the first shell 40 and the second shell 50 are made of metal. Preferably, in some examples, the first shell 40 and the second shell 50 are made of iron. When the first shell and the second shell are respectively sleeved to the male connector and the female connector and the male connector and the female connector in the connected state are respectively connected to the printed circuit board, the board-to-board electrical connection device not only realizes the electrical connection, but also has the ability to transmit a larger current due to the setting of the first shell and / or the second shell. Therefore, there is no need to use another connector dedicated to current transmission, thereby saving space and reducing costs.

[0137] In some exemplary embodiments according to the present application, reference Fig.23 and Fig.24 The first shell 40 may include: a first portion 41 sleeved on the first end wall 138 , a second portion 42 sleeved on the second end wall 139 , a third portion 43 sleeved on the first side wall 122 , and a fourth portion 44 sleeved on the second side wall 123 . The first part 41, the second part 42, the third part 43 and the fourth part 44 are all formed as U-shaped parts having a long side part 425 and a short side part 430 and have an open end in the direction along the first direction Y toward the proximal side of the base 13 of the male seat accommodating part. The first part 41, the second part 42, the third part 43 and the fourth part 44 are respectively detachably mounted on the first end wall 138, the second end wall 139, the first side wall 122 and the second side wall 123 via the open ends, so that the long side part 425 of the U-shaped part is engaged with the outer surfaces of the first end wall 138, the second end wall 139, the first side wall 122 and the second side wall 123, and the short side part of the U-shaped part is engaged with the inner surfaces of the first end wall 138, the second end wall 139, the first side wall 122 and the second side wall 123 facing the interior of the male seat accommodating part. The first part 41, the second part 42, the third part 43 and the fourth part 44 have corresponding lengths and the same configuration according to the lengths of the first end wall 138, the second end wall 139, the first side wall 122 and the second side wall 123. Therefore, the first housing can be manufactured in a modular manner, and a suitable first housing can be cut out according to the lengths of the first end wall 138, the second end wall 139, the first side wall 122 and the second side wall 123, thereby saving manufacturing costs and ensuring the consistency and stability of the first housing for maintaining the male connector.

[0138] In some other exemplary embodiments according to the present application, still referring to Fig.23 and Fig.24 The U-shaped member constituting the first part 41, the second part 42, the third part 43 and the fourth part 44 of the first shell 40 may include a plurality of first straight extensions 421 and a plurality of first bent portions 422 alternately arranged at the edge of the long side portion 425 of the U-shaped member close to the proximal side surface 120 of the male seat accommodating member base 13, the first bent portion 422 may include a first straight portion 424 arranged in the same plane as the first straight extension portion 421 and a first bent portion 423 connected to the first straight portion 424, and in the direction along the first direction toward the proximal side of the male seat accommodating member base 13, the end surface of the first straight extension portion 421 is aligned with the first bent portion 422. The end surface of the first bent portion 423 of a bent portion 422 is flush, and the outer peripheral edge of the distal side surface 121 of the male seat accommodating member base 13 may include a plurality of first lugs 132 with first holes 133. When the first shell 40 is sleeved on the male seat accommodating member side wall 126, the first bent portion 422 can be arranged between two adjacent first lugs 132 or the first lug 132 can be arranged between two adjacent first bent portions 422, and the first straight extension portion 421 of the first shell 40 can be inserted through the first hole 133 in the first lug 132 and extend beyond the proximal side surface 120 of the male seat accommodating member base 13 (see Fig. 22 ), and the dimension of the first straight extension portion 421 extending beyond the proximal side surface 120 of the male seat receiving part base 13 can be the same as the dimension of the male seat terminal proximal end portion 110 of the male seat terminal 11 extending beyond the proximal side surface 120 of the male seat receiving part base 13, so that the contour end surfaces extending in the direction along the first direction Y toward the proximal side of the male seat receiving part base 13 of the male seat terminal proximal end portion 110, the first straight extension portion 421 and the first bent portion 423 are flush, so that the male seat terminal proximal end portion 110 and the first shell can be simultaneously connected to the contact portion 61 of the printed circuit board 60. In some examples, the male seat terminal proximal end portion 110, the straight extension portion 421 of the first shell and the first bent portion 423 are simultaneously welded to the contact portion 61 of the printed circuit board 60, thereby enhancing the connection reliability between the male seat terminal 10 and the printed circuit board 60 and between the first shell 40 and the printed circuit board 60.

[0139] In some other exemplary embodiments according to the present application, Fig. 22 As shown, the first shell 40 is connected to one of the paired printed circuit boards 60 in the direction along the first direction Y toward the proximal side of the male socket accommodating member base 13 through the end surface of the first straight extension portion 421 and the first bent portion 423 of the first bent portion 422, thereby ensuring the connection stability between the male socket connector 10 and the printed circuit board.

[0140] In some exemplary embodiments according to the present application, Fig.23 and Fig.24 Combined with Fig.28C As shown, the short side portions of the U-shaped member constituting the first part 41, the second part 42, the third part 43 and the fourth part 44 of the first shell 40 are constructed as elastically deformable members, so that when the male connector 10 is engaged with the female connector 20, the short side portions of the U-shaped member constituting the first part 41, the second part 42, the third part 43 and the fourth part 44 of the first shell 40 respectively abut against the outer surface of the base 23 of the female seat accommodating member of the female connector 20 and apply a biasing force to the female connector 20 toward the interior of the male seat accommodating member 12 of the male connector 10.

[0141] In some exemplary embodiments according to the present application, Fig.24 As shown, the short side portion of the U-shaped member constituting the first portion 41, the second portion 42, the third portion 43 and the fourth portion 44 of the first housing 40 includes a plurality of short side segments spaced apart from each other and extending in a direction toward the proximal end side of the male seat receiving member base 13 along the first direction Y, each of the plurality of short side segments is connected to the long side portion 425 of the U-shaped member through a corresponding intermediate connecting portion 431, and each of the short side segments includes a frame portion 429 and an elastic overhang portion 433, one end of the elastic overhang portion 433 is connected to the frame portion 4 29, and the other end of the elastic overhang portion 433 is separated from the frame portion 429 along the first direction Y to form a free end portion 432, and the free end portion 432 of the elastic overhang portion 433 is bent to protrude toward the inside of the male seat accommodating member 12, so that when the male connector 10 is engaged with the female connector 20, the elastic overhang portion 433 of each short side segment abuts against the outer surface of the female seat accommodating member base 23 of the female connector 20 and applies a biasing force to the female connector 20 toward the inside of the male seat accommodating member 12 of the male connector 10, as shown in FIG. Fig.28C shown.

[0142] In some exemplary embodiments according to the present application, reference Figure 5 The inner side surface 127 of the male seat accommodating part side wall 126 of the male seat accommodating part 12 of the male seat connector 10 may include a plurality of side wall grooves 128 and a plurality of side wall protrusions 129, and the plurality of side wall grooves 128 and the plurality of side wall protrusions 129 are arranged alternately. The male seat accommodating part base 13 of the male seat accommodating part 12 of the male seat connector 10 may include a plurality of receiving parts 135, and the plurality of receiving parts 135 are arranged to correspond to the plurality of side wall grooves 128, and the receiving parts 135 are recessed from the distal side surface 121 of the male seat accommodating part base 13 toward the proximal side of the male seat accommodating part base 13 along the first direction Y.

[0143] In some other exemplary embodiments according to the present application, Fig.24 As shown, the end portion of each short side segment opposite to the middle connecting portion 431 may include a tip protrusion 428, and the tip protrusion 428 is aligned with the elastic overhang portion 433 of the short side segment in the first direction Y, so that: when the first shell 40 is sleeved onto the side wall 126 of the male seat accommodating component, the elastic overhang portion 433 of the short side segment can be aligned with the side wall groove 128 set on the inner surface 127 of the side wall 126 of the male seat accommodating component, and the tip protrusion 428 can be accommodated in the receiving portion 135 corresponding to the groove 128, thereby increasing the connection stability between the first shell and the male seat connector.

[0144] exist Fig.24 In the embodiment, the elastic overhang portion 433 and the tip protrusion 428 may be respectively arranged on opposite sides of one side of the frame portion 429, that is, the elastic overhang portion 433 may extend obliquely toward the inside of the male seat accommodating part of the male seat connector from the proximal side of the frame portion 429 along the first direction Y away from the proximal side of the male seat accommodating part base, and the tip protrusion 428 extends from the proximal side of the frame portion 429 along the first direction Y toward the proximal side of the male seat accommodating part base. Alternatively, the elastic overhang portion 433 may extend obliquely toward the inside of the male seat accommodating part of the male seat connector from the distal side of the frame portion 429 along the first direction toward the proximal side of the male seat accommodating part base, and when the first housing 40 is sleeved onto the male seat accommodating part side wall 126, the elastic overhang portion 433 of the short side section is aligned with the side wall groove 128 arranged on the inner side surface 127 of the male seat accommodating part side wall 126. In this way, the first shell is connected to the male socket accommodating part and the printed circuit board of the male socket connector through the tip protrusion 428, the first straight extension portion 421 and the first bent portion 422, so that the first shell, the male socket connector and the printed circuit board are firmly held, thereby improving the stability of the electrical connection device.

[0145] In some other exemplary embodiments according to the present application, Fig.24 As shown, the central portion of the free end 432 of the elastic cantilever portion 433 may include a cantilever arm recess 426, so that a pair of cantilever arm contact portions 427 are formed at the free end 432 of the elastic cantilever portion 433. When the first housing 40 is sleeved onto the male seat receiving part side wall 126, the cantilever arm contact portions 427 may abut against the outer surface of the female seat receiving part base 23 of the female connector 20 and apply a biasing force to the female connector 20 toward the inside of the male seat receiving part 12 of the male connector 10, as shown in FIG. Fig.28CWhen the male connector 10 and the female connector 20 are connected to each other, only the paired cantilever arm contact portions 427 can abut against the second shell of the female receiving member base 23, thereby ensuring that the male connector 10 contacts the female connector 20 while achieving the ability to transmit a larger current.

[0146] In some other exemplary embodiments according to the present application, referring to Figure 25 to Figure 27 The second shell 50 may include: a third end wall shell 53 and a fourth end wall shell 54 which are respectively detachably mounted on the outer sides of the third end wall 251 and the fourth end wall 252 of the female seat accommodating part base 23 of the female seat accommodating part 22 in the third direction Z; and a third side shell 55 and a fourth side shell 56 which are respectively detachably mounted on the outer sides of the third side portion 28 and the fourth side portion 29 of the female seat accommodating part base 23 of the female seat accommodating part 22 in the second direction X, each of the third end wall shell 53, the fourth end wall shell 54, the third side shell 55 and the fourth side shell 56 includes a shell fixing portion 550 configured to engage with the edge of the distal side surface 230 of the female seat accommodating part base 23 and a shell attachment portion 51 configured to be adjacent to the proximal side surface 220 of the female seat accommodating part base 23.

[0147] In some exemplary embodiments according to the present application, reference Fig.25 and Fig.26 , the edge of the distal side surface 230 of the female seat receiving part base 23 may include fixed recesses 2301 arranged at intervals. Fig. 27 The shell fixing portion 550 may include a plurality of abutment portions 5501 and a plurality of fixed mounting portions 5502 that are alternately arranged, and the fixed mounting portions 5502 may be configured to be bent toward the base 23 of the female seat accommodating part and engaged into the fixed recess 2301. Optionally, the abutment portions 5501 are bent toward the base 23 of the female seat accommodating part and abut against the edge of the distal side surface 230 of the base 23 of the female seat accommodating part.

[0148] In some exemplary embodiments according to the present application, reference Fig.25 and Fig.26 The edge of the proximal side surface 220 of the female seat receiving member base 23 includes a plurality of second lugs 30 arranged at intervals, and each second lug 30 may include a second orifice 31; Fig. 27The shell attachment portion 51 may include a plurality of second straight extensions 510 and a plurality of second bent portions 511 that are alternately arranged, and the second bent portion 511 may include a second straight portion 513 that is arranged in the same plane as the second straight extension 510 and a second bent portion 512 that is connected to the second straight portion 513, and in the direction along the first direction Y toward the proximal side of the female seat accommodating member base 23, the end surface of the second straight extension 510 is flush with the end surface of the second bent portion 512 of the second bent portion 511; refer to Fig.25 In the state where the second housing 50 is sleeved to the outside of the base 23 of the female seat accommodating member, the second bent portion 511 can be arranged between two adjacent second lugs 30 or the second lug 30 can be arranged between two adjacent second bent portions 511 (refer to Fig.25 As shown in the enlarged view of detail Q in the figure, the second straight extension portion 510 of the second shell 50 is inserted through the second opening 31 in the second lug 30 and extends beyond the proximal side surface 220 of the base 23 of the female seat accommodating member, and the dimension of the second straight extension portion 510 extending beyond the proximal side surface 220 of the base 23 of the female seat accommodating member is the same as the dimension of the proximal side surface 220 of the female seat terminal proximal end portion 210 of the female seat terminal 21 extending beyond the proximal side surface 220 of the base 23 of the female seat accommodating member, so that the contour end surfaces extending in the direction along the first direction Y toward the proximal side of the base of the female seat accommodating member are flush, so that the proximal end portion 210 of the female seat terminal and the second shell can be simultaneously connected to the contact portion 61 of the printed circuit board 60. In some examples, the proximal portion 210 of the female socket terminal, the straight extension portion 510 of the second shell, and the second bent portion 512 are simultaneously soldered to the contact portion 61 of the printed circuit board 60, thereby enhancing the connection reliability between the female socket terminal 10 and the printed circuit board 60 and between the second shell 50 and the printed circuit board 60.

[0149] In some other exemplary embodiments according to the present application, Fig.25 As shown, the second shell 50 is connected to one of the paired printed circuit boards 60 through the end surface of the second straight extension portion 510 and the second bent portion 512 of the second bent portion 511 in the direction along the first direction Y toward the proximal side of the base of the female seat accommodating member, thereby ensuring the connection stability between the female seat connector 20 and the printed circuit board.

[0150] In some other exemplary embodiments according to the present application, the extension length of the first part 41, the second part 42, the third part 43 and the fourth part 44 of the first shell 40 for the male socket connector 10 is determined according to the extension length of the side wall of the male socket accommodating part of the male socket connector, and the extension length of the third end wall shell 53, the fourth end wall shell 54, the third side shell 55 and the fourth side shell 56 of the second shell 40 for the female socket connector 20 is also determined according to the extension length of the third end wall 251, the fourth end wall 252, the third side 28 and the fourth side 29 of the female socket accommodating part base of the female socket connector. Therefore, the first shell 40 and the second shell 50 can be cut to a corresponding length according to the configuration of the connector, thereby ensuring the consistency of the shells used to be sleeved on the male socket connector and the female socket connector, and ensuring the stability of current transmission. In addition, since only the first shell and / or the second shell formed by the mold need to be cut to form the shells for the various parts of the male connector and / or the female connector, only the mold for manufacturing the first shell and / or the second shell is required, thereby saving the mold cost.

[0151] Although the present application has been described with reference to exemplary embodiments, it should be understood that the present application is not limited to the specific embodiments described and shown in detail herein. Various changes may be made to the exemplary embodiments by those skilled in the art without departing from the scope defined by the claims of the present application.

[0152] The features mentioned and / or shown in the above description of the exemplary embodiments of the present application may be combined in the same or similar manner into one or more other embodiments, combined with the features in other embodiments or substituted for the corresponding features in other embodiments. The technical solutions obtained by these combinations or substitutions shall also be deemed to be included in the protection scope of the present application.

Claims

1. A male connector, the male connector (10) defining: a thickness extending along a first direction (Y); a width extending along a second direction (X) perpendicular to the first direction (Y); and a length extending along a third direction (Z) perpendicular to both the first direction (Y) and the second direction (X), characterized in that: The male socket connector (10) includes a plurality of male socket terminals (11) arranged in a male socket terminal array and a male socket accommodating member (12) for accommodating the male socket terminals (11), and the lengths of two adjacent rows of male socket terminals arranged along the second direction (X) or two adjacent columns of male socket terminals arranged along the third direction (Z) in the first direction (Y) of the male socket connector (10) are different from each other.

2. The male connector according to claim 1, characterized in that: The male terminal array comprises at least three rows and / or at least three columns of male terminals, the male terminals (11) arranged in the same row or column have the same length in the first direction (Y), and the male terminals in the male terminal array are arranged to have the same size and configuration every two rows or every two columns.

3. The male connector according to claim 1 or 2, characterized in that: The male terminal (11) comprises a male terminal proximal end portion (110), a male terminal distal end portion (111), and an intermediate connecting portion (112) connecting the male terminal proximal end portion (110) and the male terminal distal end portion (111), wherein an outer contour dimension (W1) of the male terminal distal end portion (111) in the second direction (X) is smaller than an outer contour dimension (W2) of the male terminal proximal end portion (110) in the second direction (X).

4. The male connector according to claim 3, characterized in that: The outer contour dimension of the distal end portion (111) of the male terminal in the third direction (Z) is smaller than the outer contour dimension of the proximal end portion (110) of the male terminal in the third direction (Z).

5. The male connector according to claim 4, characterized in that: The male seat accommodating member (12) of the male seat connector (10) includes a male seat accommodating member base (13), and the male seat accommodating member base (13) includes a plurality of male seat accommodating member through holes (14) arranged in the form of an array identical to the male seat terminal array, and each male seat terminal in the male seat connector (10) extends through a corresponding one of the plurality of male seat accommodating member through holes (14), so that the male seat terminal distal end portion (111) of each male seat terminal (11) extends beyond the distal side surface (121) of the male seat accommodating member base (13), and the male seat terminal proximal end portion (110) of each male seat terminal extends beyond the proximal side surface (120) of the male seat accommodating member base (13).

6. The male connector according to claim 5, characterized in that: The male seat accommodating part through hole (14) comprises a male seat accommodating part through hole distal end portion (140) for accommodating the male seat terminal distal end portion (111) in a form-fitting manner and a male seat accommodating part through hole proximal end portion (141) for accommodating the male seat terminal proximal end portion (110) in a form-fitting manner, and a dimension (D1) of the male seat accommodating part through hole distal end portion (140) in the second direction (X) is smaller than a dimension (D2) of the male seat accommodating part through hole proximal end portion (141) in the second direction (X).

7. The male connector according to claim 6, characterized in that: The dimension of the distal end portion (140) of the male seat accommodating part through hole in the third direction (Z) is smaller than the dimension of the proximal end portion (141) of the male seat accommodating part through hole in the third direction (Z).

8. The male connector according to claim 6 or 7, characterized in that: The proximal portion (110) of the male terminal includes at least one protrusion (1120) extending from opposite sides of the proximal portion (110) of the male terminal along the second direction (X) and arranged adjacent to the proximal end of the proximal portion (110) of the male terminal. The protrusion (1120) is configured to gradually shrink from the proximal portion side of the male terminal toward the distal portion side of the male terminal along the first direction (Y). When the proximal portion (110) of the male terminal is accommodated in the proximal portion (141) of the male receiving part through hole, at least a portion of the protrusion (1120) abuts against two inner side surfaces of the proximal portion (141) of the male receiving part through hole that are opposite in the second direction (X).

9. The male connector according to claim 6 or 7, characterized in that: The intermediate connecting portion (112) includes a bending portion, which is configured such that: a central axis (L1) of the proximal portion (110) of the male terminal extending along the first direction (Y) and a central axis (L2) of the distal portion (111) of the male terminal extending along the first direction (Y) are offset from each other by a certain distance (L) in the third direction (Z), and, when the proximal portion (110) of the male terminal is accommodated in the proximal portion (141) of the male receiving part through hole, an outer side surface of the proximal portion (110) of the male terminal away from the central axis (L1) of the proximal portion (110) of the male terminal in the third direction (Z) abuts against an inner side surface of the proximal portion (141) of the male receiving part through hole in the third direction (Z).

10. The male connector according to claim 5 or 6, characterized in that: The male seat accommodating part (12) of the male seat connector (10) includes a male seat accommodating part side wall (126) extending from the outer peripheral edge of the male seat accommodating part base (13) along the first direction (Y), the male seat accommodating part side wall (126) is formed integrally with the male seat accommodating part base (13), and the dimension of the male seat accommodating part side wall (126) extending in the first direction (Y) is greater than the dimension of the portion of the male seat terminal (11) extending beyond the distal side surface (121) of the male seat accommodating part base (13).

11. A female connector, the female connector (20) having: a first direction (Y) defining a thickness extension direction of the female connector; a second direction (X) defining a width dimension of the female connector and being perpendicular to the first direction (Y); and a third direction (Z) defining a longitudinal extension direction of the female connector, the third direction being perpendicular to the first direction (Y) and the second direction (X), respectively, characterized in that: The female socket connector (20) comprises a plurality of female socket terminals (21) arranged in a female socket terminal array and a female socket accommodating member (22) for accommodating the female socket terminals (21), wherein in the female socket terminal array, the female socket terminals (21) are arranged in rows along the second direction (X) and in columns along the third direction (Z).

12. The female connector according to claim 11, characterized in that: The dimensions of each of the plurality of female socket terminals (21) in the first direction (Y) are the same.

13. The female connector according to claim 11 or 12, characterized in that: The female socket terminal (21) includes a female socket terminal distal end portion (211) and a female socket terminal proximal end portion (210), the female socket terminal proximal end portion (210) is formed as a plate-like portion, the female socket terminal distal end portion (211) includes a pair of leg-like portions cantilevered from the distal end of the female socket terminal proximal end portion (210), the pair of leg-like portions includes a first leg-like portion (2110) and a second leg-like portion (2111), the first leg-like portion (2110) and the second leg-like portion (2111) are formed as follows: spaced apart at a portion adjacent to the female socket terminal proximal end portion (210), and close to each other at a free end away from the female socket terminal proximal end portion (210) to form a clamping portion.

14. The female connector according to claim 13, characterized in that: The first leg-shaped portion (2110) includes a first leg-shaped proximal portion (2113) adjacent to the proximal portion (210) of the female socket terminal and a first leg-shaped distal portion (2112) away from the proximal portion (210) of the female socket terminal, and the second leg-shaped portion (2111) includes a second leg-shaped proximal portion (2115) adjacent to the proximal portion (210) of the female socket terminal and a second leg-shaped distal portion (2114) away from the proximal portion (210) of the female socket terminal, and the distance between the first leg-shaped distal portion (2112) and the second leg-shaped distal portion (2114) is smaller than the distance between the first leg-shaped proximal portion (2113) and the second leg-shaped proximal portion (2115).

15. The female connector according to claim 14, characterized in that: The distal end portion (2112) of the first leg-shaped portion includes a first flat portion (2118) continuous with the proximal end portion (2113) of the first leg-shaped portion and a first spiral portion (2116) extending spirally from the first flat portion (2118) along a first spiral direction to gradually move away from the first flat portion (2118), the distal end portion (2114) of the second leg-shaped portion includes a second flat portion (2119) continuous with the proximal end portion (2115) of the second leg-shaped portion and a second spiral portion (2117) extending spirally from the second flat portion (2119) along a second spiral direction opposite to the first spiral direction to gradually move away from the second flat portion (2119), the first spiral portion (2116) and the second spiral portion (2117) are configured to be spaced apart from each other and face each other, and the distance between the first spiral portion (2116) and the second spiral portion (2117) is smaller than the distance between the proximal end portion (2113) of the first leg-shaped portion and the proximal end portion (2115) of the second leg-shaped portion, thereby forming the clamping portion.

16. The female connector according to claim 13, characterized in that: The female socket accommodating part (22) of the female socket connector (20) includes a female socket accommodating part base (23), and the female socket accommodating part base (23) includes a plurality of female socket accommodating part through holes (24) arranged in the form of an array identical to the female socket terminal array, and each female socket terminal of the female socket connector (20) is respectively accommodated in a corresponding one of the plurality of female socket accommodating part through holes (24), so that the female socket terminal distal end portion (211) of each female socket terminal (21) is not visible from the distal side surface (230) of the female socket accommodating part base (23), and the female socket terminal proximal end portion (210) of each female socket terminal (21) extends beyond the proximal side surface (220) of the female socket accommodating part base (23).

17. An electrical connector assembly, the electrical connector assembly (100) comprising a male connector and a female connector arranged in pairs, the male connector being the male connector according to any one of claims 1 to 10, the female connector being the female connector according to any one of claims 11 to 16, characterized in that: When the male connector (10) and the female connector (20) are engaged with each other, the distal side surface (121) of the male seat accommodating member base (13) of the male connector and the distal side surface (230) of the female seat accommodating member base (23) of the female connector (20) face each other in the first direction (Y), so that the multiple male terminals (11) arranged in the male terminal array are engaged with the multiple female terminals (21) arranged in the female terminal array in a one-to-one correspondence to form an electrical connection.

18. The electrical connector assembly according to claim 17, wherein: When the male connector (10) is engaged with the female connector (20), the male terminal distal end portion (111) of each male terminal of the male connector (10) is inserted into a corresponding female seat accommodating component through hole among the multiple female seat accommodating component through holes (24) of the female seat accommodating component (22) of the female connector (20) along the first direction (Y), and is engaged with the female terminal distal end portion (211) of the female terminal (21) accommodated in the corresponding female seat accommodating component through hole to form an electrical connection.

19. The electrical connector assembly according to claim 18, characterized in that The male terminal distal end portion (111) of the male terminal (11) is engaged with the first spiral portion (2116) and the second spiral portion (2117) of the female terminal distal end portion (211) of the female terminal (21) and is clamped between the first spiral portion (2116) and the second spiral portion (2117).

20. The electrical connector assembly according to any one of claims 17 to 19, characterized in that: The male seat accommodating part (12) and the female seat accommodating part (22) respectively include positioning feature parts for forming a form-fitting fit when the male seat connector (10) and the female seat connector (20) are in an engaged state.

21. The electrical connector assembly according to claim 20, characterized in that The male seat receiving part side wall (126) of the male seat receiving part (12) includes a first end wall (138) and a second end wall (139) opposite to each other in the third direction (Z), and the positioning feature portion includes: male socket accommodating member base recessed portions (131) respectively formed at two opposite ends in the third direction (Z) of the distal side surface (121) of the male socket accommodating member base (13) of the male socket connector (10), and a third end wall (251) and a fourth end wall (252) arranged at opposite ends of a female seat receiving member base (23) of the female seat connector (20) along the third direction (Z), Wherein, the third end wall (251) and the fourth end wall (252) are configured to extend beyond the distal side surface (230) of the female seat accommodating member base (23) along the first direction (Y) so that: when the male seat connector (10) is engaged with the female seat connector (20), the third end wall (251) and the fourth end wall (252) are respectively embedded in the groove (150) formed by the first end wall (138) and the second end wall (139) and the corresponding male seat accommodating member base recess (131).

22. The electrical connector assembly according to claim 21, characterized in that The male seat receiving part side wall (126) includes a first side wall (122) and a second side wall (123) opposite to each other in the second direction (X), and the positioning feature portion further includes: first side wall recessed portions (1221) respectively disposed at two opposite ends of the first side wall (122) in the third direction (Z), and first side wall protruding portions (124) respectively disposed between the two first side wall recessed portions and adjacent to a corresponding one of the two first side wall recessed portions and protruding toward the interior of the male seat receiving member (12); and, On one side of the third end wall (251) and the fourth end wall (252) of the female seat accommodating member (22) corresponding to the first side wall (122) of the male seat accommodating member (12) along the second direction (X), a third end wall protrusion (2511) and a fourth end wall protrusion (2521) are respectively arranged to extend beyond the side surface of the female seat accommodating member base (23) along the second direction (X), In which, when the male connector (10) is engaged with the female connector (20), the third end wall protrusion (2511) and the fourth end wall protrusion (2521) of the female connector (20) are respectively engaged in a form-fitting manner with the corresponding first side wall recess (1221) of the first side wall (122) of the male connector (10), and the first side wall protrusion (124) abuts against a portion of the side surface of the female accommodating part (22) where the third end wall protrusion (2511) and the fourth end wall protrusion (2521) are not provided.

23. The electrical connector assembly according to claim 22, characterized in that The positioning feature portion further includes: second side wall protrusions (125) respectively disposed at two opposite ends of the second side wall (123) in the third direction (Z) and protruding toward the interior of the male seat receiving part (12), In which, when the male connector (10) is engaged with the female connector (20), the second side wall protrusion (125) is engaged with the side surface of the female socket accommodating part (22) of the female connector (20) which is not provided with the third end wall protrusion (2511) and the fourth end wall protrusion (2521).

24. A board-to-board electrical connection device, the electrical connection device (200) comprising: a pair of printed circuit boards (60), and The electrical connector assembly according to any one of claims 17 to 23; It is characterized in that the paired printed circuit boards (60) are respectively connected to the male connector (10) and the female connector (20) in the electrical connector assembly, and when the male connector (10) is engaged with the female connector (20), the paired printed circuit boards (60) are electrically connected to each other and form a configuration that is roughly parallel to each other.

25. The electrical connection device according to claim 24, characterized in that: The male terminal proximal end portion (110) of each male terminal (11) of the male connector (10) extends beyond the proximal side surface (120) of the male receiver base (13) of the male receiver (12) and is connected to one of the paired printed circuit boards (60); and The proximal end portion of each female terminal (21) of the female connector (20) extends beyond the proximal side surface (220) of the female receiver base (23) of the female receiver and is connected to the other of the paired printed circuit boards (60).

26. The electrical connection device according to claim 25, characterized in that: The proximal end portion (110) of the male terminal (11) extending beyond the proximal side surface (120) of the male terminal receiving member base (13) is formed to have an L-shaped bend, and the proximal end portion (210) of the female terminal (21) extending beyond the proximal side surface (220) of the female terminal receiving member base (23) is formed to have an L-shaped bend.

27. The electrical connection device according to any one of claims 24 to 26, characterized in that: The male connector (10) also includes a first shell (40) which is sleeved onto the male seat accommodating part side wall (126) of the male seat accommodating part (12), and the female connector (20) includes a second shell (50) which is sleeved onto the outer side of the female seat accommodating part base (23) of the female seat accommodating part (22).

28. The electrical connection device according to claim 27, characterized in that: The first shell (40) includes: a first portion (41) sleeved on the first end wall (138) of the male seat accommodating member, a second portion (42) sleeved on the second end wall (139) of the male seat accommodating member, a third portion (43) sleeved on the first side wall (122) of the male seat accommodating member, and a fourth portion (44) sleeved on the second side wall (123) of the male seat accommodating member, the first portion (41), the second portion (42), the third portion (43) and the fourth portion (44) are all formed as U-shaped members having a long side portion (425) and a short side portion (430), and have an open end in the direction along the first direction (Y) toward the proximal side of the male seat accommodating member base (13) of the male seat accommodating member, wherein, The first part (41), the second part (42), the third part (43) and the fourth part (44) are respectively detachably mounted on the first end wall (138), the second end wall (139), the first side wall (122) and the second side wall (123) via open ends, so that the long side portion (425) of the U-shaped member is engaged with the outer surfaces of the first end wall (138), the second end wall (139), the first side wall (122) and the second side wall (123), and the short side portion of the U-shaped member is engaged with the inner surfaces of the first end wall (138), the second end wall (139), the first side wall (122) and the second side wall (123) facing the interior of the male seat accommodating member.

29. The electrical connection device according to claim 28, characterized in that: A U-shaped member constituting the first portion (41), the second portion (42), the third portion (43) and the fourth portion (44) of the first shell (40) includes, at an edge of a long side portion (425) of the U-shaped member close to a proximal side surface (120) of the male seat receiving member base (13), a plurality of first straight extension portions (421) and a plurality of first bent portions (422) arranged alternately, wherein the first bent portion (422) includes a first straight portion (424) arranged in the same plane as the first straight extension portion (421) and a first bent portion (423) connected to the first straight portion (424), and in a direction along the first direction (Y) toward the proximal side of the male seat receiving member base (13), an end surface of the first straight extension portion (421) is flush with an end surface of the first bent portion (423) of the first bent portion (422), and The outer peripheral edge of the distal side surface (121) of the male seat receiving part base (13) includes a plurality of first lugs (132) with first openings (133), In which, when the first shell (40) is sleeved on the side wall (126) of the male seat accommodating part, the first bent portion (422) is arranged between two adjacent first lugs (132) or the first lug (132) is arranged between two adjacent first bent portions (422), the first straight extension portion (421) of the first shell (40) is inserted through the first opening (133) of the first lug (132) and extends beyond the proximal side surface (120) of the base (13) of the male seat accommodating part, and the dimension of the first straight extension portion (421) extending beyond the proximal side surface (120) of the base (13) of the male seat accommodating part is the same as the dimension of the proximal end portion (110) of the male terminal (11) extending beyond the proximal side surface (120) of the base (13) of the male seat accommodating part.

30. The electrical connection device according to claim 29, characterized in that: In the direction along the first direction (Y) toward the proximal side of the male seat receiving member base (13), the first shell (40) is connected to one of the paired printed circuit boards (60) through the end surface of the first straight extension portion (421) and the first bent portion (423) of the first bent portion (422).

31. The electrical connection device according to claim 28, characterized in that: The short side portions of the U-shaped member of the first shell (40) constituting the first part (41), the second part (42), the third part (43) and the fourth part (44) are constructed as elastically deformable members, so that when the male connector (10) is engaged with the female connector (20), the short side portions of the U-shaped member of the first shell (40) constituting the first part (41), the second part (42), the third part (43) and the fourth part (44) respectively abut against the outer surface of the base (23) of the female seat accommodating member of the female connector (20) and apply a biasing force to the female connector (20) toward the interior of the male seat accommodating member (12) of the male connector (10).

32. The electrical connection device according to claim 31, characterized in that: The short side portion of the U-shaped member constituting the first part (41), the second part (42), the third part (43) and the fourth part (44) of the first shell (40) includes a plurality of short side segments which are spaced apart from each other and extend in the direction along the first direction (Y) toward the proximal side of the male seat receiving member base (13), each of the plurality of short side segments being connected to the long side portion (425) of the U-shaped member via a corresponding intermediate connecting portion (431), each short side segment including a frame portion (429) and an elastic overhang portion (433), one end of the elastic overhang portion (433) being connected to the frame portion (429), and The other end of the elastic overhang portion (433) is separated from the frame portion (429) along the first direction (Y) to form a free end portion (432), and the free end portion (432) of the elastic overhang portion (433) is bent to protrude toward the interior of the male seat accommodating member (12), so that when the male connector (10) is engaged with the female connector (20), the elastic overhang portion (433) of each short side segment abuts against the outer surface of the female seat accommodating member base (23) of the female connector (20) and applies a biasing force to the female connector (20) toward the interior of the male seat accommodating member (12) of the male connector (10).

33. The electrical connection device according to claim 32, characterized in that: The inner surface (127) of the male seat accommodating part side wall (126) of the male seat accommodating part (12) of the male seat connector (10) includes a plurality of side wall grooves (128) and a plurality of side wall protrusions (129) arranged alternately, and the male seat accommodating part base (13) of the male seat accommodating part (12) of the male seat connector (10) includes a plurality of receiving parts (135) corresponding to the plurality of side wall grooves (128), and the receiving parts (135) are recessed from the distal side surface (121) of the male seat accommodating part base (13) along the first direction (Y) toward the proximal side of the male seat accommodating part base (13).

34. The electrical connection device according to claim 33, characterized in that: A tip protrusion (428) is provided at the end of each short side segment opposite to the middle connecting portion (431), and the tip protrusion (428) is aligned with the elastic overhang portion (433) of the short side segment in the first direction (Y), so that when the first shell (40) is sleeved on the side wall (126) of the male seat accommodating component, the elastic overhang portion (433) of the short side segment is aligned with the side wall groove (128) provided on the inner surface (127) of the side wall (126) of the male seat accommodating component, and the tip protrusion (428) is accommodated in the receiving portion (135) corresponding to the side wall groove (128).

35. The electrical connection device according to claim 34, characterized in that: The central portion of the free end portion (432) of the elastic cantilever portion (433) includes a cantilever arm recess (426), thereby forming a pair of cantilever arm contact portions (427) at the free end portion (432) of the elastic cantilever portion (433).

36. The electrical connection device according to claim 27, characterized in that: The second shell (50) comprises: a third end wall shell (53) and a fourth end wall shell (54) which are respectively detachably mounted on the outer sides of the third end wall (251) and the fourth end wall (252) of the female seat accommodating part base (23) of the female seat accommodating part (22) in the third direction (Z); and a third side portion (28) and a fourth side portion (252) of the female seat accommodating part base (23) of the female seat accommodating part (22) in the second direction (X). 9), each of the third end wall shell (53), the fourth end wall shell (54), the third side shell (55) and the fourth side shell (56) includes a shell fixing portion (550) configured to engage with the edge of the distal side surface (230) of the base of the female seat accommodating member (23) and a shell attachment portion (51) configured to be adjacent to the proximal side surface (220) of the base of the female seat accommodating member (23).

37. The electrical connection device according to claim 36, characterized in that: The edge of the distal side surface (230) of the female seat accommodating member base (23) includes intervally arranged fixing recesses (2301), and the shell fixing portion (550) includes a plurality of alternatingly arranged abutment portions (5501) and a plurality of fixing mounting portions (5502), wherein the fixing mounting portions (5502) are configured to bend toward the female seat accommodating member base (23) and engage into the fixing recesses (2301).

38. The electrical connection device according to claim 37, characterized in that: The abutment portion (5501) is bent toward the female seat accommodating member base (23) and abuts against the edge of the distal side surface (230) of the female seat accommodating member base (23).

39. The electrical connection device according to claim 38, characterized in that The edge of the proximal side surface (220) of the female seat accommodating member base (23) includes a plurality of second lugs (30) arranged at intervals, each second lug (30) includes a second opening (31), and the shell attachment portion (51) includes a plurality of second straight extensions (510) and a plurality of second bent portions (511) arranged alternately, the second bent portion (511) includes a second straight portion (513) arranged in the same plane as the second straight extension (510) and a second bent portion (512) connected to the second straight portion (513), and in the direction along the first direction (Y) toward the proximal side of the female seat accommodating member base (23), the end surface of the second straight extension (510) is flush with the end surface of the second bent portion (512) of the second bent portion (511), and In which, when the second shell (50) is sleeved onto the outer side of the female seat accommodating member base (23), the second bent portion (511) is arranged between two adjacent second lugs (30) or the second lug (30) is arranged between two adjacent second bent portions (511), the second straight extension portion (510) is inserted through the second opening (31) of the second lug (30) and extends beyond the proximal side surface (220) of the female seat accommodating member base (23), and the size of the second straight extension portion (510) extending beyond the proximal side surface (220) of the female seat accommodating member base (23) is the same as the size of the proximal end portion (210) of the female seat terminal (21) extending beyond the proximal side surface (220) of the female seat accommodating member base (23).

40. The electrical connection device according to claim 39, characterized in that In the direction along the first direction (Y) toward the proximal side of the base (23) of the female seat accommodating member, the second shell (50) is connected to one of the paired printed circuit boards (60) through the end surface of the second straight extension portion (510) and the second bent portion (512) of the second bent portion (511).

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