CN116014475A - Terminal matching structure and high-speed backboard connector assembly - Google Patents
Terminal matching structure and high-speed backboard connector assembly Download PDFInfo
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- CN116014475A CN116014475A CN202310056102.4A CN202310056102A CN116014475A CN 116014475 A CN116014475 A CN 116014475A CN 202310056102 A CN202310056102 A CN 202310056102A CN 116014475 A CN116014475 A CN 116014475A
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Abstract
The invention relates to a terminal matching structure and a high-speed backboard connector assembly, wherein the terminal matching structure comprises two terminals matched with each other, each terminal comprises a force arm, each force arm comprises an abutting part, a connecting section and an abutting section which are sequentially arranged along the length direction of the force arm, when the two terminals are matched, the abutting parts of the terminals are abutted against the abutting sections of the matched terminals respectively, the connecting sections of the two terminals are oppositely arranged, one side surface of the connecting sections of the two terminals, which is oppositely arranged, is constructed to be a first matching surface, a second matching surface which is concave relative to the first matching surface or is overlapped with the first matching surface is formed on the first matching surface, and when the two terminals are matched, the second matching surfaces of the force arms of the two terminals are oppositely arranged, and the distance between the second matching surfaces of the force arms of the two terminals is larger than the distance between the first matching surfaces of the two force arms of the two terminals. The invention can ensure that the two terminals matched with each other are effectively and stably connected, and can realize higher signal transmission speed.
Description
Technical Field
The present invention relates to the field of connectors, and in particular, to a terminal mating structure and a high-speed backplane connector assembly.
Background
In the prior art, a backplane connector assembly is generally required to achieve high-speed signal transmission, and the backplane connector assembly generally comprises a male end connector and a female end connector which are matched with each other, wherein the male end connector and the female end connector respectively comprise a plurality of terminal assemblies, and each terminal assembly comprises a plurality of terminals. After the male end connector and the female end connector are inserted, the terminals of the male end connector and the terminals of the female end connector are connected together, so that signal transmission is realized. If the terminals of the male connector and the terminals of the female connector are poorly connected, the signal transmission of the backplane connector assembly is unstable or even impossible. However, it is difficult to ensure that the terminals of the male connector and the terminals of the female connector in the prior art are effectively and stably connected and can transmit signals at high speed.
Disclosure of Invention
Based on this, the present invention provides a terminal fitting structure, comprising: the two terminals that mutually support, every the terminal includes the arm of force respectively, the arm of force includes the butt portion that sets gradually along its length direction, linkage segment and butt section, when two terminals cooperate, each the butt portion of terminal offsets with the butt section of matched with terminal respectively, just the linkage segment of two terminals sets up in opposite directions, the one side surface that the linkage segment of two terminals set up in opposite directions is constructed to first mating surface, be formed with on the first mating surface for first mating surface towards arm of force indent or with the second mating surface of first mating surface coincidence, when two terminals cooperate, the second mating surface of two terminal arms of force set up in opposite directions and the distance between the two is greater than the distance between the first mating surface of two terminal arms of force.
Further, the first matching surfaces of the two terminal force arms are parallel to each other, and the distance between the first matching surfaces of the two terminal force arms is 0.1-0.5 mm.
Further, the distance between the second matching surfaces of the two terminal force arms is 0.3-1.5 mm.
Further, the width of the second mating surface is smaller than the width of the abutting portion, and the width of the second mating surface is smaller than the width of the first mating surface.
Preferably, each of said arms has one of said second mating surfaces; the second mating surface is located at one side of the width direction of the first mating surface, or the second mating surface is located at the middle of the width direction of the first mating surface.
Further, the force arm further comprises a leading-in section, the leading-in section is connected with the connecting section, and the joint of the leading-in section and the connecting section is bent to form the abutting part.
Preferably, the length of the lead-in section is 0.5 to 0.95mm.
Preferably, a reinforcing structure is arranged at the joint of the leading-in section and the connecting section, and the reinforcing structure extends inwards towards the joint of the leading-in section and the connecting section.
The present invention also provides a high-speed backplane connector assembly comprising: a male connector and a female connector which are matched with each other; the male end connector and the female end connector respectively comprise a plastic base and a plurality of terminal assemblies fixed in the plastic base at intervals, the terminal assemblies of the male end connector and the terminal assemblies of the female end connector are matched in a one-to-one correspondence mode, each terminal assembly respectively comprises an insulating base and a plurality of terminals, the terminals of the terminal assemblies of the male end connector and the terminals of the terminal assemblies of the female end connector are matched in a one-to-one correspondence mode to form the terminal matching structure, the terminals of each terminal assembly are fixed in the insulating base of the terminal assemblies at intervals along the width direction of the terminals, the force arms of the terminals extend out of the insulating base respectively, the abutting parts are located at free ends of the force arms, and the abutting sections are located at fixed ends of the force arms.
Further, the terminals are sequentially connected into terminal rows through material belts, the terminal rows are used as inserts to be integrally formed with the insulating seats through in-mold injection, the material belts are located outside the insulating seats after the integral forming, and the insulating seats are provided with blanking clearance grooves which are arranged in one-to-one correspondence with the material belts.
Further, the abutting section of the force arm is provided with an abutting surface and a non-abutting surface which are oppositely arranged, wherein the abutting surface is connected with the first matching surface, the insulating base is provided with bosses which are correspondingly arranged at the root of the abutting section of the force arm, and each boss is respectively abutted to the corresponding non-abutting surface at the root of the abutting section of the force arm.
Further, the terminals are divided into a grounding terminal and a signal terminal, the grounding terminal and the signal terminal in each terminal assembly are alternately arranged, and at least two hollows are formed in the arm of force abutting section of each grounding terminal.
Preferably, each of the terminal assemblies further includes a shielding plate fixed to the insulating base and electrically connected to each of the ground terminals, respectively.
Compared with the prior art, the invention has the beneficial characteristics that: when the two terminals are matched, the abutting part of each terminal abuts against the abutting section of the matched terminal, so that the abutting is more firm, the two matched terminals are prevented from being disconnected, and the two matched terminals are ensured to be connected stably and effectively; moreover, when two terminals match, the second mating surface of two terminal arms sets up in opposite directions and the distance between the two is greater than the distance between the first mating surface of two terminal arms, neither influence the effective butt between terminal arm and the matched terminal arm, guarantee that two terminals that match can effectively stable the connection, can realize higher signal transmission speed again simultaneously, avoided increasing the distance between the first mating surface of two terminal arms in order to improve signal transmission speed and can't guarantee that two terminal arms can effective butt.
Drawings
FIG. 1 is a schematic view of a high-speed backplane connector assembly according to the present invention in an incompletely mated state;
FIG. 2 is a schematic view of a high-speed backplane connector assembly according to the present invention in an plugged state;
FIG. 3 is a schematic view of a portion of a high-speed backplane connector assembly according to the present invention, wherein the male and female plastic bases are not shown;
FIG. 4 is a bottom view of FIG. 3;
FIG. 5 is an enlarged view of the portion A of FIG. 4;
FIG. 6 is a partial cross-sectional view of the structure of FIG. 5;
FIG. 7 is a schematic diagram of another embodiment of the structure of FIG. 6;
FIG. 8 is a schematic diagram of another embodiment of the structure of FIG. 6;
FIG. 9 is a schematic view of a male connector according to the present invention;
FIG. 10 is a schematic view of the male connector terminal assembly of the present invention separated from the plastic base;
FIG. 11 is a schematic view of a male terminal assembly according to the present invention;
FIG. 12 is a schematic view of the male terminal assembly of FIG. 11;
FIG. 13 is a schematic view of the male terminal assembly of FIG. 11;
FIG. 14 is a left side view of FIG. 13;
FIG. 15 is a right side view of FIG. 13;
FIG. 16 is a schematic view of a male terminal assembly according to the present invention;
fig. 17 is a schematic view of the male terminal assembly of fig. 16;
FIG. 18 is a right side view of FIG. 17;
FIG. 19 is a schematic view of a male terminal assembly according to the present invention;
FIG. 20 is a schematic view of the partial structure of FIG. 19;
FIG. 21 is a schematic view of the partial structure of FIG. 19;
fig. 22 is a schematic view of the front structure of an uncut strip of male terminal assembly according to the present invention;
FIG. 23 is a schematic view of a female connector according to the present invention;
FIG. 24 is an exploded view of the female connector of the present invention;
wherein: 1 a-male terminal, 1 b-female terminal (10-ground terminal, 20-signal terminal, 101-moment arm (1011-abutment (W) 3 -width of the abutment), 1012-the connecting section (10121-the first mating surface (W) 1 -width of the first mating surface), 10122-second mating surface (W 2 Width of the second mating surface), 10123-convex hull, 10124-chamfer structure), 1013-abutment section (10131-abutment surface, 10132-non-abutment surface, 10133-hollowed-out portion), 1014-lead-in section (length of L-lead-in section), 1015-reinforcing structure, D 1 Distance, D, between the first mating face of the male terminal arm and the first mating face of the female terminal arm 2 Distance, D, between the second mating face of the male terminal arm and the second mating face of the female terminal arm 3 Distance, D, between the second mating face of the male terminal moment arm and the first mating face of the male terminal moment arm 4 -distance between the second mating face of the female terminal arm and the first mating face of the female terminal arm)), 2 a-male insulation seat, 2 b-female insulation seat (201-blanking clearance groove, 202-boss), 3 a-strip, 4 a-male shielding sheet, 4 b-female shielding sheet, 5 a-male plastic base, 5 b-female plastic base, 6 b-first grounding strip, 7 b-second grounding strip.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In the embodiment of the invention, the X direction, the Y direction and the Z direction are perpendicular to each other.
Referring to fig. 1, 3-19, and 21-24, a terminal fitting structure according to an embodiment of the invention includes: the male terminal 1a and the female terminal 1b which are matched with each other, the male terminal 1a and the female terminal 1b each include a force arm 101, the force arm 101 extends along the X direction, the force arm 101 includes an abutting portion 1011, a connecting section 1012 and an abutting section 1013 which are sequentially arranged along the length direction of the force arm 101, that is, the force arm 101 includes an abutting portion 1011, a connecting section 1012 and an abutting section 1013 which are sequentially arranged along the X direction. In use, as shown in fig. 3 to 8, the male terminal 1a and the female terminal 1b are required to be matched, in order to ensure firm contact, and to avoid disconnection of the male terminal 1a and the female terminal 1b, when the male terminal 1a and the female terminal 1 are inserted in place, the contact portion 1011 of the male terminal 1a contacts the contact portion 1013 of the female terminal 1b, and the contact portion 1011 of the female terminal 1b contacts the contact portion 1013 of the male terminal 1a. And the connection section 1012 of the male terminal 1a and the connection section 1012 of the female terminal 1b are disposed opposite to each other, one side surface of the connection section 1012 of the male terminal 1a and the connection section 1012 of the female terminal 1b disposed opposite to each other is configured as the first mating surface 10121 of the arm 101 of the male terminal 1a, and one side surface of the connection section 1012 of the female terminal 1b and the connection section 1012 of the male terminal 1a disposed opposite to each other is configured as the first mating surface 10121 of the arm 101 of the female terminal 1b. The first matching surface 10121 of the force arm 101 of the male terminal 1a and the first matching surface 10121 of the force arm 101 of the female terminal 1b are too large in distance, so that the first matching surface 10121 of the force arm 101 of the male terminal 1a is recessed towards the first matching surface 10121 of the force arm 101 of the female terminal 1b or the first matching surface 10121 of the force arm 101 of the female terminal 1b is too small, and the first matching surface 10121 of the force arm 101 of the male terminal 1a is provided with a second matching surface 10122 which is recessed towards the first matching surface 10121 of the force arm 101 of the male terminal 1a or coincides with the first matching surface 10121 of the force arm 101 of the male terminal 1a, but the first matching surface 10121 of the force arm 101 of the female terminal 1b is provided with a second matching surface 10122 which is recessed towards the first matching surface 10121 of the female terminal 1b or coincides with the first matching surface 10121 of the first matching surface 1011 b of the male terminal 1a, so that the first matching surface 1011 a signal is more closely matched with the second matching surface 1011 a 1b of the first matching surface 1011 b of the male terminal 1a, and the second matching surface 10122 of the first matching surface 101 of the male terminal 1a is arranged at a distance of the first matching surface 1a, and the second matching surface 10122 of the first matching surface of the force arm 1a signal matching surface 101 is not longer than the first matching surface 101 a, and the first matching surface 1a signal matching surface 1a between the first matching surface and the first matching surface 101 b and the first matching surface 1b of the first matching surface 101 a and the first matching surface 1b.
In some preferred embodiments, in order to ensure that the abutting portion 1011 of the male terminal 1a can effectively abut against the abutting section 1013 of the female terminal 1b, and at the same time ensure that the abutting portion 1011 of the female terminal 1b can effectively abut against the abutting section 1013 of the male terminal 1a, the first mating surface 10121 of the moment arm 101 of the male terminal 1a and the first mating surface 10121 of the moment arm 101 of the female terminal 1b are parallel to each other, as shown in fig. 4 to 8.
In some preferred embodiments, in order to ensure that the abutting portion 1011 of the male terminal 1a can effectively abut against the abutting section 1013 of the female terminal 1b, and at the same time ensure that the abutting portion 1011 of the female terminal 1b can effectively abut against the abutting section 1013 of the male terminal 1a, and to ensure that the male terminal 1a and the female terminal 1b are conveniently inserted in place without damaging the arm 101, the distance D between the first mating surface 10121 of the arm 101 of the male terminal 1a and the first mating surface 10121 of the arm 101 of the female terminal 1b 1 0.1 to 0.5mm. When the distance between the first mating surface 10121 of the arm 101 of the male terminal 1a and the first mating surface 10121 of the arm 101 of the female terminal 1b is smaller than 0.1mm, the male terminal 1a and the female terminal 1b are not easy to be plugged together, and the arm 101 may be damaged during plugging. When the distance between the first mating surface 10121 of the arm 101 of the male terminal 1a and the first mating surface 10121 of the arm 101 of the female terminal 1b is greater than 0.5mm, the effective abutment between the arm 101 of the male terminal 1a and the arm 101 of the female terminal 1b cannot be ensured, and there is a possibility that the arm 101 of the male terminal 1a and the arm 101 of the female terminal 1b are disconnected or abnormally contacted.
In some preferred embodiments, the male terminal 1a moment armDistance D between the second mating face 10122 of 101 and the second mating face 10122 of the arm 101 of the female terminal 1b 2 Is 0.3-1.5 mm, and at least can meet the requirement of high-speed 56G transmission.
In some preferred embodiments, in order to avoid excessive strength differences between the male terminal 1a moment arm 101 and the female terminal 1b moment arm 101, referring to fig. 5 and 6, the second mating surface 10122 of the male terminal 1a moment arm 101 is recessed into the male terminal 1a moment arm 101 relative to the first mating surface 10121 of the male terminal 1a moment arm 101, and the second mating surface 10122 of the female terminal 1b moment arm 101 is recessed into the female terminal 1b moment arm 101 relative to the first mating surface 10121 of the female terminal 1b moment arm 101.
More preferably, in order to further avoid an excessive difference in strength between the male terminal 1a moment arm 101 and the female terminal 1b moment arm 101, please refer to fig. 5 and 6, the distance D between the second mating surface 10122 of the male terminal 1a moment arm 101 and the first mating surface 10121 of the male terminal 1a moment arm 101 3 Distance D between the second mating surface 10122 of the arm 101 of the female terminal 1b and the first mating surface 10121 of the arm 101 of the female terminal 1b 4 Equal. Accordingly, in order to meet at least the high speed 56G transmission requirement, the distance D between the second mating surface 10122 of the male terminal 1a moment arm 101 and the first mating surface 10121 of the male terminal 1a moment arm 101 3 The distance D between the second mating surface 10122 of the arm 101 of the female terminal 1b and the first mating surface 10121 of the arm 101 of the female terminal 1b is 0.1-0.5 mm 4 The distance D between the second mating surface 10122 of the arm 101 of the male terminal 1a and the second mating surface 10122 of the arm 101 of the female terminal 1b is 0.1-0.5 mm 2 0.3-1.5 mm.
In other preferred embodiments, for convenience of manufacturing and simplicity of construction, please refer to fig. 7 and 8, in which only the second mating surface 10122 of one of the terminal force arms 101 is recessed into the force arm 101 with respect to the first mating surface 10121 of the terminal force arm 101, in the male terminal 1a and the female terminal 1b that are mated with each other. The second mating face 10122 of the other terminal arm 101 coincides with the first mating face 10121 of that terminal arm 101.
In some embodiments, as shown in FIG. 7, the first arm 101 of the female terminal 1bThe two mating surfaces 10122 are recessed inward of the first mating surface 10121 of the arm 101 of the female terminal 1b relative to the first mating surface 10121 of the arm 101 of the female terminal 1b, and the second mating surface 10122 of the arm 101 of the male terminal 1a is coincident with the first mating surface 10121 of the arm 101 of the male terminal 1a, i.e. the distance D between the second mating surface 10122 of the arm 101 of the male terminal 1a and the first mating surface 10121 of the arm 101 of the male terminal 1a 3 Is 0. Accordingly, in order to meet at least the high speed 56G transmission requirement, the distance D between the second mating surface 10122 of the arm 101 of the female terminal 1b and the first mating surface 10121 of the arm 101 of the female terminal 1b 4 The distance D between the second mating surface 10122 of the arm 101 of the male terminal 1a and the second mating surface 10122 of the arm 101 of the female terminal 1b is 0.2-1.0 mm 2 0.3-1.5 mm.
In some specific embodiments, as shown in fig. 8, the second mating surface 10122 of the male terminal 1a moment arm 101 is recessed inward of the male terminal 1a moment arm 101 relative to the first mating surface 10121 of the male terminal 1a moment arm 101, and the second mating surface 10122 of the female terminal 1b moment arm 101 coincides with the first mating surface 10121 of the female terminal 1b moment arm 101, i.e., the distance D between the second mating surface 10122 of the female terminal 1b moment arm 101 and the first mating surface 10121 of the female terminal 1b moment arm 101 4 Is 0. Accordingly, in order to meet at least the high speed 56G transmission requirement, the distance D between the second mating surface 10122 of the male terminal 1a moment arm 101 and the first mating surface 10121 of the male terminal 1a moment arm 101 3 The distance D between the second mating surface 10122 of the arm 101 of the male terminal 1a and the second mating surface 10122 of the arm 101 of the female terminal 1b is 0.2-1.0 mm 2 0.3-1.5 mm.
In other embodiments, the distance D between the second mating surface 10122 of the male terminal 1a moment arm 101 and the first mating surface 10121 of the male terminal 1a moment arm 101 3 Distance D between the second mating surface 10122 of the arm 101 of the female terminal 1b and the first mating surface 10121 of the arm 101 of the female terminal 1b 4 Not equal and the distance D between the second mating surface 10122 of the arm 101 of the male terminal 1a and the first mating surface 10121 of the arm 101 of the male terminal 1a 3 Greater than 0, the distance between the second mating surface 10122 of the arm 101 of the female terminal 1b and the first mating surface 10121 of the arm 101 of the female terminal 1bD 4 Greater than 0. Accordingly, in order to meet at least the high speed 56G transmission requirement, the distance D between the second mating surface 10122 of the arm 101 of the male terminal 1a and the second mating surface 10122 of the arm 101 of the female terminal 1b 2 0.3-1.5 mm.
In some preferred embodiments, referring to fig. 3 to 19 and fig. 21 to 24, in order to avoid affecting the strength of the moment arm 101, when the second mating surface 10122 of the moment arm 101 is concave towards the inside of the moment arm 101 relative to the first mating surface 10121 of the moment arm 101, a convex hull 10123 is provided on the moment arm 101, the convex hull 10123 has a concave surface and a convex surface that are oppositely arranged, the convex surface protrudes towards the outside of the moment arm 101 relative to the moment arm 101, the concave surface is concave towards the inside of the moment arm 101 relative to the moment arm 101, and the concave surface of the convex hull 10123 is the second mating surface 10122.
In other embodiments, when the second mating surface 10122 of the arm 101 is recessed into the arm 101 relative to the first mating surface 10121 of the arm 101, only the upper portion of the first mating surface 10121 of the arm 101 is thinned in the Y direction to form the second mating surface 10122, i.e. only the second mating surface 10122 is recessed into the arm 101 relative to the first mating surface 10121 of the arm 101, and the convex hull 10123 is not formed.
In some preferred embodiments, please refer to fig. 3, 9-13, 16-17, 19, and 21-24, in order to avoid the abutting portion 1011 falling into the second mating surface 10122 to affect the plugging, the width W of the second mating surface 10122 2 A width W smaller than the contact portion 1011 3 That is, the length of the second mating surface 10122 in the Z direction is smaller than the length of the abutment 1011 in the Z direction. Correspondingly, when the second mating surface 10122 is the concave surface of the convex hull 10123, if the concave of the convex hull 10123 has the chamfer structure 10124, the width W of the second mating surface 10122 2 The width of the chamfer structure 10124 should be included as shown in fig. 17.
In some preferred embodiments, please refer to fig. 3, 9-13, 16-17, 19, and 21-24, in order to avoid excessively affecting the strength of the arm 101, the width W of the second mating surface 10122 2 A width W smaller than the first mating surface 10121 1 I.e. the second mating surface 10122 has a length in the Z direction less than that of the first mating surfaceA length of the mating face 10121 in the Z direction. Correspondingly, when the second mating surface 10122 is the concave surface of the convex hull 10123, if the concave of the convex hull 10123 has the chamfer structure 10124, the width W of the second mating surface 10122 2 The width of the chamfer structure 10124 should be included as shown in fig. 17.
In some more preferred embodiments, each moment arm 101 has a second mating surface 10122 for simplicity. In a specific embodiment, referring to fig. 1, 9-15, 19, 21, and 23-24, the second mating surface 10122 is located on one side of the first mating surface 10121 in the width direction, i.e. on one side of the first mating surface 10121 in the Z direction, the second mating surface 10122 is located on the other side of the first mating surface 10121. In another specific embodiment, please refer to fig. 3-8, 16-18, and 22, the second mating surface 10122 is located at a middle portion of the first mating surface 10121 in the width direction, i.e. in the Z direction, the second mating surface 10122 is located at a middle portion of the first mating surface 10121.
In summary, in the plugging process of the male terminal 1a and the female terminal 1b, a part of the abutting portions 1011 of both sides can always pass through the first mating surface 10121 of the corresponding terminal, so that the PIN blocking phenomenon cannot occur between the concave surface (i.e., the concave and second mating surfaces 10122) formed by the convex hull 10123, and the smoothness of the plugging process of the male terminal 1a and the female terminal 1b is ensured.
In other embodiments, each arm 101 may also have at least two second mating surfaces 10122, where the second mating surfaces 10122 are arranged at intervals along the X direction or along the Y direction, or in other forms, so long as the requirement of high-speed transmission is met. The second mating surfaces 10122 of the arms 101 of the male terminal 1a and the second mating surfaces 10122 of the arms 101 of the matched female terminal 1b are arranged in a one-to-one correspondence. The distance between the second mating surface 10122 on the same arm 101 and the first mating surface 10121 of the arm 101 may be different or the same, as long as the distance D between the second mating surface 10122 of the arm 101 of the male terminal 1a and the correspondingly disposed second mating surface 10122 on the arm 101 of the mating female terminal 1b 2 Can ensure that the high-speed transmission requirement is met.
In some preferred embodiments, referring to fig. 3 to 19 and fig. 21 to 24, for convenience of plugging, the arm 101 further includes a lead-in section 1014, the lead-in section 1014 is connected to the connection section 1012, and the connection between the lead-in section 1014 and the connection section 1012 is bent to form an abutment 1013, and the abutment 1013 makes the abutment of the arm 101 of the male terminal 1a and the arm 101 of the female terminal 1b more firm.
In some preferred embodiments, referring to fig. 14, in order to prevent PIN collapse while ensuring easy insertion and assembly of the male terminal 1a and the female terminal 1b, the length L of the lead-in section 1014 is 0.5-0.95 mm. When the length L of the lead-in section 1014 is less than 0.5mm, the PIN is prone to collapse. When the length L of the lead-in section 1014 is greater than 0.95mm, the plug-in fitting is not easy.
In some preferred embodiments, referring to fig. 3 to 19 and fig. 21 to 24, in order to ensure that the male terminal 1a and the female terminal 1b are not deformed after being inserted, the connection between the lead-in section 1014 and the connection section 1012 is provided with a reinforcing structure 1015, and the reinforcing structure 1015 is bent inward toward the connection between the lead-in section 1014 and the connection section 1012, so as not to affect the insertion. The reinforcing structure 1015 may be formed by stamping or tearing.
In some embodiments, referring to fig. 5 to 12, 15, 19, 21 and 23, for convenience of production, the reinforcing structure 1015 is a planar segment region extending inward toward the bend with respect to the abutment 1011. In other embodiments, the reinforcing structure 1015 may be a reinforcing rib structure located in the bending at the connection portion between the lead-in section 1014 and the connection section 1012, which only needs to ensure that the strength of the arm 101 can be enhanced, and ensure that the arm 101 does not deform after the male terminal 1a and the female terminal 1b are inserted.
Referring to fig. 1 to 24, a high-speed backplane connector assembly according to an embodiment of the invention includes: the male end connector and the female end connector which are matched with each other can be spliced into a whole along the X direction. Fig. 2 to 21 are schematic views of the high-speed backplane connector assembly and its components when the male connector and the female connector are in a plugged state. Fig. 1 is a schematic view showing a state of the high-speed backplane connector assembly when the male connector and the female connector are in an incompletely plugged state. Fig. 22 to 24 are schematic views showing the components of the high-speed backplane connector assembly when the male connector and the female connector are in an unplugged state. The male connector includes a male plastic base 5a and a plurality of male terminal assemblies stacked in Y direction and fixed in the male plastic base 5a at intervals. The female connector includes a female plastic base 5b and a plurality of female terminal assemblies stacked in the Y direction at intervals fixed in the female plastic base 5 b. The male terminal assemblies and the female terminal assemblies are in one-to-one corresponding fit and are inserted. The male terminal assembly includes a male insulating holder 2a and a plurality of male terminals 1a. The female terminal assembly includes a female insulating holder 2b and a plurality of female terminals 1b. The male terminal 1a of the male terminal assembly and the female terminal 1b of the female terminal assembly are fitted one by one to form the terminal fitting structure as above. The male terminals 1a of the male terminal assembly are fixed in the male insulating base 2a at intervals along the width direction of the male terminals 1a, namely, a plurality of male terminals 1a are fixed in the male insulating base 2a at intervals along the Z direction, and the force arm 101 of each male terminal 1a extends out of the male insulating base 2a respectively, wherein the abutting part 1011 is located at the free end of the force arm 101, and the abutting section 1013 is located at the fixed end of the force arm 101. The female terminals 1b of the female terminal assembly are fixed in the female insulating base 2b at intervals along the width direction of the female terminals 1b, that is, a plurality of female terminals 1b are fixed in the female insulating base 2b at intervals along the Z direction, and the arm 101 of each female terminal 1b extends out of the female insulating base 2b respectively, wherein the abutting part 1011 is located at the free end of the arm 101, and the abutting section 1013 is located at the fixed end of the arm 101.
In some preferred embodiments, referring to fig. 22, in order to improve product quality, in order to avoid relative movement between the male terminals 1a during the production process, a plurality of male terminals 1a are sequentially connected into a male terminal row through a material belt 3a, the male terminal row is integrally formed with the male insulating base 2a through in-mold injection as an insert, and the material belt 3a is located outside the male insulating base 2a after the integral formation. Namely, during production, the male terminal strip is produced firstly, the male terminal strip comprises the male terminal 1a and the material strip 3a which are integrally formed, then the male terminal strip is used as an insert and is integrally formed with the male insulating base 2a through in-mold injection, the material strip 3a is positioned outside the male insulating base 2a after the integral forming, and then all the material strips 3a are cut off, so that two adjacent male terminal 1a are separated. In order to avoid that the product quality is affected when the material strip 3a is cut off, the material strip 3a is cut into the male end insulating seat 2a, and the male end insulating seat 2a is provided with material cutting avoiding grooves 201 which are arranged in one-to-one correspondence with the material strip 3 a. In order to improve the product quality, avoid the production in-process, take place relative movement between female terminal 1b, a plurality of female terminal 1b are connected into female terminal row in proper order through the material area, and female terminal row is through the in-mould injection moulding integrated into one piece with female insulating seat 2b as the mold insert, and the material area is located female insulating seat 2b after the integrated into one piece. Namely, during production, the female terminal strip is produced firstly, the female terminal strip comprises a female terminal 1b and a material strip which are integrally formed, the female terminal strip is used as an insert and is integrally formed with the female insulating seat 2b through in-mold injection, the material strip after the integral forming is positioned outside the female insulating seat 2b, and then all the material strips are cut off, so that two adjacent female terminals 1b are separated. In order to avoid that the product quality is affected when the material strip is cut off, the material strip is cut to the female end insulating seat 2b, and the female end insulating seat 2b is provided with material cutting avoiding grooves 201 which are arranged in one-to-one correspondence with the material strip.
In some preferred embodiments, referring to fig. 4 and 5, in the male terminal assembly, the abutment section 1013 of the arm 101 has oppositely disposed abutment and non-abutment surfaces 10131, 10132. The abutting surface 10131 is connected to the first mating surface 10121, and the abutting surface 10131 is configured to be in abutting engagement with the abutting portion 1011 of the female terminal 1b. The male insulation seat 2a is provided with the bosses 202 corresponding to the root parts of the abutting sections 1013 of the force arms 101 of the male terminals 1a, each boss 202 is respectively abutted against the non-abutting surface 10132 of the root parts of the abutting sections 1013 of the corresponding force arms 101 of the male terminals 1a, namely, the bosses 202 are abutted against one side surface of the force arms 101 of the male terminals 1a, which is far away from the abutted female terminals 1b, and after the male terminals 1a and the female terminals 1b are spliced, the bosses 202 can be used as fulcradles to support the corresponding force arms 101 of the male terminals 1a, so that the male terminals 1a and the female terminals 1b are prevented from being fatigued after the male terminals 1a and the female terminals 1b are spliced. In the female terminal assembly, the abutment section 1013 of the lever arm 101 has oppositely disposed abutment and non-abutment faces 10131, 10132. The abutting surface 10131 is connected to the first mating surface 10121, and the abutting surface 10131 is configured to be in abutting engagement with the abutting portion 1011 of the male terminal 1a. The female end insulating base 2b is provided with bosses 202 corresponding to the root parts of the abutting sections 1013 of the moment arms 101 of the female end terminals 1b, each boss 202 is respectively abutted against the non-abutting surface 10132 of the root parts of the abutting sections 1013 of the moment arms 101 of the corresponding female end terminals 1b, namely, the bosses 202 are abutted against one side surface of the moment arms 101 of the female end terminals 1b, which is far away from the abutted male end terminals 1a, and after the male end terminals 1a and the female end terminals 1b are spliced, the bosses 202 can be used as supporting points to support the moment arms 101 of the corresponding female end terminals 1b, so that the female end terminals 1b are prevented from being fatigued after the male end terminals 1a and the female end terminals 1b are spliced.
In some embodiments, the terminals are divided into ground terminals 10 and signal terminals 20, with the ground terminals 10 and signal terminals 20 being alternately arranged. Specifically, the male terminal 1a in the male terminal assembly is divided into the ground terminal 10 and the signal terminal 20, and the ground terminal 10 and the signal terminal 20 in the male terminal assembly are alternately arranged. The female terminal 1b of the female terminal assembly is divided into a ground terminal 10 and a signal terminal 20, and the ground terminal 10 and the signal terminal 20 of the female terminal assembly are alternately arranged. Referring to fig. 1 and 3, when the male terminal assembly and the female terminal assembly are mated, the ground terminal 10 in the male terminal assembly is abutted against the ground terminal 10 in the mated female terminal assembly, and the signal terminal 20 in the male terminal assembly is abutted against the signal terminal 20 in the mated female terminal assembly.
In some preferred embodiments, referring to fig. 3, 9-13, 16-17, 19, 21-22, and 24, at least two hollowed portions 10133 are respectively formed on the abutting section 1013 of the arm 101 of each grounding terminal 10, and when the male terminal assembly and the female terminal assembly are matched, the hollowed portions 10133 are formed to facilitate elastic deformation of the grounding terminal 10 and facilitate plugging. Moreover, the provision of the hollowed-out portion 10133 also enables the connector to meet high-speed 60G transmission requirements.
In some embodiments, the cutout 10133 is an elongated hole extending in the X-direction, i.e., along the length of the arm 101. In other embodiments, the hollow 10133 may be other hollow structures, such as uniformly distributed holes, so long as the connector meets the high-speed 60G transmission requirement.
In some preferred embodiments, referring to fig. 3 and 19, in order to achieve uniform grounding and improve crosstalk, the male terminal assembly further includes a male shielding piece 4a, and the male shielding piece 4a is fixed to the male insulating base 2a and electrically connected to the ground terminal 10. In some embodiments, one male terminal assembly includes a plurality of male shield blades 4a, each male shield blade 4a being secured to a respective male insulator seat 2 a.
In some preferred embodiments, referring to fig. 24, in order to achieve uniform grounding and improve crosstalk, the female terminal assembly further includes a female shield piece 4b, and the female shield piece 4b is fixed to the female insulation base 2a and electrically connected to the ground terminal 10. In some embodiments, a female terminal assembly includes a female shield piece 4b.
In some preferred embodiments, referring to fig. 4 and 24, in order to achieve uniform grounding and improve crosstalk, each female terminal assembly further includes a first grounding bar 6b, the first grounding bar 6b is electrically connected with the female terminal shielding sheet 4b in the same female terminal assembly, and the female connector further includes a second grounding bar 7b, and the second grounding bar 7b integrally connects the first grounding bars 6b of all the female terminal assemblies.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples only represent preferred embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (13)
1. A terminal mating structure, characterized in that it comprises: the two terminals that mutually support, every the terminal includes the arm of force respectively, the arm of force includes the butt portion that sets gradually along its length direction, linkage segment and butt section, when two terminals cooperate, each the butt portion of terminal offsets with the butt section of matched with terminal respectively, just the linkage segment of two terminals sets up in opposite directions, the one side surface that the linkage segment of two terminals set up in opposite directions is constructed to first mating surface, be formed with on the first mating surface for first mating surface towards arm of force indent or with the second mating surface of first mating surface coincidence, when two terminals cooperate, the second mating surface of two terminal arms of force set up in opposite directions and the distance between the two is greater than the distance between the first mating surface of two terminal arms of force.
2. The terminal mating structure of claim 1, wherein the first mating surfaces of the two terminal force arms are parallel to each other, and a distance between the first mating surfaces of the two terminal force arms is 0.1-0.5 mm.
3. The terminal mating structure of claim 1, wherein a distance between the second mating surfaces of the two terminal arms is 0.3-1.5 mm.
4. The terminal mating structure according to claim 1, wherein a width of the second mating surface is smaller than a width of the abutting portion, and a width of the second mating surface is smaller than a width of the first mating surface.
5. The terminal mating structure of claim 4, wherein each of said arms has one of said second mating surfaces; the second mating surface is located at one side of the width direction of the first mating surface, or the second mating surface is located at the middle of the width direction of the first mating surface.
6. The terminal mating structure of claim 1, wherein the arm further comprises a lead-in section, the lead-in section and the connecting section are connected, and a junction of the lead-in section and the connecting section is bent to form the abutting portion.
7. The terminal mating structure according to claim 6, wherein the lead-in section has a length of 0.5 to 0.95mm.
8. The terminal mating structure of claim 6, wherein a junction of said lead-in section and said connecting section is provided with a reinforcing structure extending inwardly toward the junction of said lead-in section and connecting section.
9. A high speed backplane connector assembly, comprising: a male connector and a female connector which are matched with each other; the male end connector and the female end connector respectively comprise a plastic base and a plurality of terminal assemblies fixed in the plastic base at intervals, the terminal assemblies of the male end connector and the terminal assemblies of the female end connector are matched in a one-to-one correspondence manner, each terminal assembly respectively comprises an insulating base and a plurality of terminals, the terminals of the terminal assemblies of the male end connector and the terminals of the terminal assemblies of the female end connector are matched in a one-to-one correspondence manner to form the terminal matching structure as claimed in any one of claims 1 to 8, the terminals of each terminal assembly are fixed in the insulating base of the terminal assembly at intervals along the width direction of the terminal, and the force arm of each terminal extends out of the insulating base respectively, wherein the abutting part is located at the free end of the force arm, and the abutting section is located at the fixed end of the force arm.
10. The high-speed backplane connector assembly of claim 9, wherein the plurality of terminals are sequentially connected into terminal rows by a material strip, the terminal rows are integrally formed with the insulating base by in-mold injection molding as inserts, the material strip is positioned outside the insulating base after the integral molding, and the insulating base is formed with material-cutting clearance grooves which are arranged in one-to-one correspondence with the material strip.
11. The high-speed backplane connector assembly of claim 9, wherein the abutment section of the moment arm has oppositely disposed abutment and non-abutment surfaces, wherein the abutment surface is connected to the first mating surface, the insulator seat has a boss disposed corresponding to the root of the abutment section of the moment arm, and each boss abuts against the corresponding non-abutment surface of the abutment section root of the moment arm.
12. The high-speed backplane connector assembly of claim 9, wherein the terminals are divided into ground terminals and signal terminals, the ground terminals and signal terminals in each of the terminal assemblies being arranged alternately, and at least two hollowed-out portions being provided in a moment arm abutment section of each of the ground terminals.
13. The high-speed backplane connector assembly of claim 12, wherein each of said terminal assemblies further comprises a shield tab secured to said insulator base and electrically connected to each of said ground terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310056102.4A CN116014475A (en) | 2023-01-18 | 2023-01-18 | Terminal matching structure and high-speed backboard connector assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310056102.4A CN116014475A (en) | 2023-01-18 | 2023-01-18 | Terminal matching structure and high-speed backboard connector assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116014475A true CN116014475A (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310056102.4A Pending CN116014475A (en) | 2023-01-18 | 2023-01-18 | Terminal matching structure and high-speed backboard connector assembly |
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| CN (1) | CN116014475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979302A (en) * | 2023-09-22 | 2023-10-31 | 深圳市西点精工技术有限公司 | Backboard connector and socket thereof |
-
2023
- 2023-01-18 CN CN202310056102.4A patent/CN116014475A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979302A (en) * | 2023-09-22 | 2023-10-31 | 深圳市西点精工技术有限公司 | Backboard connector and socket thereof |
| CN116979302B (en) * | 2023-09-22 | 2023-12-29 | 深圳市西点精工技术有限公司 | Backboard connector and socket thereof |
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