CN114361829B - High-frequency transmission card edge connector - Google Patents
High-frequency transmission card edge connector Download PDFInfo
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- CN114361829B CN114361829B CN202111616595.XA CN202111616595A CN114361829B CN 114361829 B CN114361829 B CN 114361829B CN 202111616595 A CN202111616595 A CN 202111616595A CN 114361829 B CN114361829 B CN 114361829B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 19
- 238000003466 welding Methods 0.000 claims description 50
- 239000000758 substrate Substances 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 6
- 239000012212 insulator Substances 0.000 claims description 6
- 239000004831 Hot glue Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 4
- 230000010354 integration Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
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Abstract
The invention discloses a high-frequency transmission card edge connector, which comprises an insulating body, an upper row of terminal integrated pieces and a lower row of terminal integrated pieces, wherein the upper row of terminal integrated pieces and the lower row of terminal integrated pieces are arranged in upper and lower row of terminal accommodating grooves at two sides of the insulating body at parallel intervals, the upper row of terminal integrated pieces comprise upper row of signal terminals and upper row of grounding terminals which are alternately arranged, the lower row of terminal integrated pieces comprise lower row of signal terminals and lower row of grounding terminals which are alternately arranged, the width of an upper row of grounding terminal main body part is larger than that of an upper row of signal terminal main body part, and the width of a lower row of grounding terminal main body part is larger than that of a lower row of signal terminal main body part.
Description
Technical Field
The invention relates to a connector, in particular to a high-frequency transmission card edge connector.
Background
The card edge connector generally includes an insulating body 11, an upper-row signal terminal 122, an upper-row ground terminal 123, a lower-row signal terminal 132, a lower-row ground terminal 133, a latch 14 and a ground plate 15, in which a central slot 114 for plugging in a power card and upper-row signal terminals, upper-row ground terminals, lower-row signal terminals and lower-row ground terminals are formed on the insulating body, an upper-row terminal receiving slot 115 and a lower-row terminal receiving slot 116 for plugging in the upper-row signal terminal 122, a contact arm of the upper-row ground terminal 123 and a contact portion of the lower-row signal terminal 132 and the lower-row ground terminal 133 enter the central slot 114 through the upper-row terminal receiving slot 115 and the lower-row terminal receiving slot 116 respectively, so that contact conduction with an upper golden finger of the electronic card 3 is realized, the upper-row signal terminal 122 and the upper-row ground terminal 123 all use the same terminals, the lower-row signal terminal 132 and the lower-row ground terminal 133 also all use the same terminals, and the upper-row signal terminal 122 and the lower-row signal terminal 123 can be affected by interference signals in a high-frequency transmission process, resulting in a difficulty in achieving a high-frequency communication requirement of the connector.
Disclosure of Invention
In order to make up for the defects, the invention provides the high-frequency transmission card edge connector which can effectively reduce the interference of interference signals on the upper row signal terminals and the lower row signal terminals and greatly improve the high-frequency performance of electronic products.
The invention adopts the technical proposal for solving the technical problems that: the high-frequency transmission card edge connector comprises an insulating body, an upper-row terminal integrated part and a lower-row terminal integrated part, wherein a plurality of upper-row terminal accommodating grooves and lower-row terminal accommodating grooves which are arranged in parallel at intervals are respectively formed on two sides of the insulating body, the upper-row terminal integrated part and the lower-row terminal integrated part are respectively fixedly arranged on two sides of the insulating body, the upper-row terminal integrated part comprises a plurality of upper-row signal terminals and a plurality of upper-row grounding terminals, the upper-row grounding terminals and the upper-row signal terminals are sequentially and alternately arranged in parallel, the upper-row signal terminals comprise an upright upper-row signal terminal main body part, an upper-row signal terminal contact arm and an upper-row signal terminal welding part, the upper-row signal terminal contact arm is formed by bending and extending from the upper end of the upper-row signal terminal main body part, the upper-row signal terminal welding part is formed by extending from the lower end of the upper-row signal terminal main body part, the upper row grounding terminal comprises an upright upper row grounding terminal main body part, an upper row grounding terminal contact arm and an upper row grounding terminal welding part, wherein the upper row grounding terminal contact arm is formed by bending and extending from the upper end of the upper row grounding terminal main body part, the upper row grounding terminal welding part is formed by extending from the lower end of the upper row grounding terminal main body part, the lower row terminal integrated piece comprises a plurality of lower row signal terminals and a plurality of lower row grounding terminals, the lower row grounding terminals and the lower row signal terminals are sequentially and alternately arranged in parallel, the lower row signal terminals comprise an upright lower row signal terminal main body part, a lower row signal terminal contact arm and a lower row signal terminal welding part, the lower row signal terminal contact arm is formed by bending and extending from the upper end of the lower row signal terminal main body part, the lower row signal terminal welding part is formed by extending from the lower end of the lower row signal terminal main body part, the lower row grounding terminal comprises an upright lower row grounding terminal main body part, the lower row signal terminal comprises, the lower row grounding terminal contact arms and the lower row grounding terminal welding parts are formed by bending and extending the upper ends of the lower row grounding terminal main body parts, the lower row grounding terminal welding parts are formed by extending the lower ends of the lower row grounding terminal main body parts, the upper row signal terminal contact arms and the upper row grounding terminal contact arms are respectively inserted in the upper row terminal accommodating grooves of the insulating body in a one-to-one correspondence manner, the lower row signal terminal contact arms and the lower row grounding terminal contact arms are respectively inserted in the lower row terminal accommodating grooves of the insulating body in a one-to-one correspondence manner, the upper row signal terminal welding parts of all upper row signal terminals, the upper row grounding terminal welding parts of all upper row grounding terminals, the lower row signal terminal welding parts of all lower row signal terminals and the lower row grounding terminal welding parts of all lower row grounding terminals are all located on the same welding plane outside the insulating body, and the width of the upper row grounding terminal main body parts is larger than that of the upper row signal terminal main body parts, and the width of the lower row grounding terminal main body parts is larger than that of the lower row signal terminal main body parts.
As a further improvement of the invention, at least one hollow structure is arranged on the upper row of grounding terminal main body part at intervals along the extending direction of the upper row of grounding terminal main body part.
As a further improvement of the invention, the structure that the upper row terminal integrated piece and the lower row terminal integrated piece are respectively fixedly installed at two sides of the insulating body is as follows:
the upper row terminal integrated piece further comprises an upper row terminal base body made of insulating materials, upper row signal terminal main body parts of all upper row signal terminals and upper row grounding terminal main body parts of all upper row grounding terminals are fixedly arranged on the upper row terminal base body in a distributed mode, and all upper row signal terminal contact arms, upper row grounding terminal contact arms, upper row signal terminal welding parts and upper row grounding terminal welding parts extend out of the upper row terminal base body respectively;
the lower row terminal integrated piece further comprises a lower row terminal base body made of insulating materials, wherein a lower row signal terminal main body part of each lower row signal terminal and a lower row grounding terminal main body part of each lower row grounding terminal are fixedly arranged on the lower row terminal base body, and each lower row signal terminal contact arm, each lower row grounding terminal contact arm, each lower row signal terminal welding part and each lower row grounding terminal welding part extend out of the lower row terminal base body respectively;
the upper row of terminal substrates and the lower row of terminal substrates are respectively and fixedly connected with the two side walls of the insulating body through concave-convex splicing and fixing structures or through hot melt adhesive structures.
As a further improvement of the invention, the upper row signal terminal main body part of the upper row signal terminal and the upper row ground terminal main body part of the upper row ground terminal are of an in-mold integrated structure, and the lower row signal terminal main body part of the lower row signal terminal and the lower row ground terminal main body part of the lower row ground terminal are of an in-mold integrated structure.
As a further improvement of the invention, a plurality of upper end integrated piece accommodating grooves and a plurality of lower end integrated piece accommodating grooves are respectively arranged on two side walls of the insulating body, upper end integrated piece accommodating grooves and lower end integrated piece accommodating grooves are respectively formed on the side walls of the two side walls of the insulating body, upper end integrated positioning ribs and lower end integrated positioning ribs which extend transversely and vertically are respectively formed on one side wall of the upper row of terminal base body and the lower row of terminal base body towards the insulating body, a plurality of upper end integrated piece protruding blocks and a plurality of lower end integrated piece protruding blocks are respectively arranged on one side wall of the upper row of terminal base body, upper end integrated piece positioning grooves which extend transversely and vertically are respectively formed between the upper end integrated piece protruding blocks of the upper row of terminal base body, lower end integrated piece positioning grooves which extend transversely and vertically are respectively and correspondingly arranged in the upper end integrated piece positioning grooves and the lower end integrated piece positioning grooves in a one-to-one correspondence manner are respectively formed between the lower end integrated piece protruding blocks of the lower end integrated piece.
As a further improvement of the invention, a plurality of upper end integrated piece positioning teeth and lower end integrated piece positioning teeth which are arranged in parallel at intervals along the arrangement direction of the terminals are respectively arranged on two side walls of the insulating body, a plurality of upper end integrated piece positioning holes and lower end integrated piece positioning holes are respectively arranged on one side wall of the upper row of terminal substrates and the lower row of terminal substrates facing the insulating body, and the upper end integrated piece positioning teeth and the lower end integrated piece positioning teeth are respectively inserted into the upper end integrated piece positioning holes and the lower end integrated piece positioning holes in a one-to-one correspondence manner.
As a further improvement of the invention, the upper-row terminal base body and the lower-row terminal base body are respectively provided with an upper-row terminal accommodating space and a lower-row terminal accommodating space which are opposite to the upper-end integrated piece positioning teeth and the lower-end integrated piece positioning teeth one by one, and the upper-row terminal main body part and the lower-row terminal main body part are respectively and fixedly inserted into the upper-row terminal accommodating space and the lower-row terminal accommodating space in a one-to-one correspondence manner.
As a further improvement of the invention, the side wall of the end part of the upper row of signal terminal contact arm is provided with a convex upper row of signal terminal contact part, the side wall of the end part of the upper row of grounding terminal contact arm is provided with a convex upper row of grounding terminal contact part, the side wall of the end part of the lower row of terminal contact arm is provided with a convex lower row of terminal contact part, and the upper row of signal terminal contact part and the upper row of grounding terminal contact part are respectively arranged in one-to-one correspondence with the lower row of terminal contact part.
As a further improvement of the invention, the side walls of the upper row of signal terminal main body parts, the upper row of grounding terminal main body parts and the lower row of terminal main body parts are respectively provided with an uneven structure.
As a further improvement of the invention, the side wall of the upper row of terminal base bodies and the lower row of terminal base bodies, which is opposite to the insulating body, is also provided with at least one open slot structure extending along the terminal arrangement direction, and the upper row of signal terminal main body parts, the upper row of grounding terminal main body parts and the lower row of terminal main body parts are exposed outside the upper row of terminal base bodies and the lower row of terminal base bodies through the open slot structure.
The beneficial technical effects of the invention are as follows: according to the invention, the widths of the upper-row grounding terminal main body part and the lower-row grounding terminal main body part are increased, the upper-row signal terminal and the lower-row signal terminal are shielded by the upper-row grounding terminal main body part and the lower-row grounding terminal main body part, so that interference signal interference of the upper-row signal terminal and the lower-row signal terminal in a high-frequency signal transmission process is effectively reduced, the high-frequency performance of the connector is effectively improved, meanwhile, the upper-row signal terminal, the upper-row grounding terminal, the lower-row signal terminal and the upper-row grounding terminal are cancelled by the upper-row terminal substrate and the lower-row terminal substrate, the upper-row signal terminal, the upper-row grounding terminal, the lower-row signal terminal and the insulating body are fixedly connected with two sides of the insulating body through the upper-row terminal substrate and the lower-row terminal substrate, the upper-row signal terminal, the lower-row grounding terminal and the insulating body are positioned, the upper-row signal terminal and the upper-row terminal is further avoided, the blocking of high-frequency signal by the upper-holding part of the terminal is effectively slowed down, and the attenuation degree of the high-frequency performance of the product is further improved.
Drawings
FIG. 1 is a first exploded view of a prior art card edge connector;
FIG. 2 is a second exploded view of a prior art card edge connector;
FIG. 3 is a schematic diagram of an upper row terminal assembly of a prior art card edge connector;
FIG. 4 is a schematic diagram of a prior art card edge connector lower row terminal assembly;
FIG. 5 is a perspective view of an upper row of terminals of a prior art card edge connector;
FIG. 6 is a perspective view of a lower row of terminals of a prior art card edge connector;
FIG. 7 is a state diagram of the prior art card edge connector;
FIG. 8 is a first exploded view of the invention;
FIG. 9 is a second exploded view of the invention;
fig. 10 is a first perspective view of an inventive upper row terminal integration;
fig. 11 is a second perspective view of an inventive upper row terminal integration;
fig. 12 is an exploded view of an inventive upper row terminal integration;
fig. 13 is a perspective view of an upper row of signal terminals of the invention;
fig. 14 is a perspective view of an upper row of ground terminals of the invention;
fig. 15 is a diagram showing an arrangement position relationship between the ground terminals and the signal terminals of the upper row;
fig. 16 is a first perspective view of an inventive lower row terminal integration;
fig. 17 is a second perspective view of the lower row terminal integration of the invention;
fig. 18 is an exploded view of the lower row terminal integration of the invention;
fig. 19 is a perspective view of a lower row of signal terminals of the invention;
fig. 20 is a perspective view of the lower row of ground terminals of the invention;
fig. 21 is a diagram showing the positional relationship between the lower ground terminals and the lower signal terminals;
fig. 22 is a first perspective view of an inventive insulator body;
fig. 23 is a second perspective view of the insulator of the invention;
fig. 24 is an exploded view of an assembled structure of an upper row terminal integrated member and an insulating body of the invention;
fig. 25 is an exploded view of the assembly of the lower row terminal body and the insulating body of the invention;
fig. 26 is a view showing the state of use of the invention.
Card edge connector-1 circuit board-2 electronic card-3 insulating body-11 upper end integral piece receiving groove-111: lower end integral part accommodating groove-112 upper end integral part positioning rib-1111 upper end integral part positioning tooth-1112 lower end integral part accommodating groove-1121 lower end integral part positioning tooth-1122 base-113 central slot-114 upper end terminal accommodating groove-115 lower end terminal accommodating groove-116 upper end terminal integral part-12 lower end terminal integral part-13 upper end terminal base-121 upper end integral part positioning groove-1211 upper end integral part positioning hole-1212 upper end signal terminal-122 upper end signal terminal main part-1221 upper end signal terminal contact arm-1222 upper end signal terminal welding part-1223 upper end signal terminal contact part-12221 upper end grounding terminal-123 upper end grounding terminal main part-1231 upper end grounding terminal contact arm-1232 upper end grounding terminal welding part-1233 upper end grounding terminal contact part-12321 upper end
The lower row of terminal base body-131 lower end integral piece positioning groove-1311 lower end integral piece positioning hole 1312 lower row of signal terminal-132 lower row of signal terminal main body portion-1321 lower row of signal terminal contact arm-1322 lower row of signal terminal welding portion-1323 lower row of signal terminal contact portion-13221 lower row of grounding terminal-133
Lower row ground terminal body-1331 lower row ground terminal contact arm-1332 lower row ground terminal contact-1333 lower row ground terminal-13321 latch-14 upper row terminal-120 upper row terminal-130 upper row first holding portion-1201 upper row second holding portion-1202 lower row terminal-first holding portion-1301 lower row terminal
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure, by describing embodiments of the present invention with reference to specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or scope thereof.
Examples: the high-frequency transmission card edge connector 1 comprises an insulating body 11, an upper-row terminal integrated part 12 and a lower-row terminal integrated part 13, wherein a plurality of upper-row terminal accommodating grooves 115 and lower-row terminal accommodating grooves 116 which are arranged in parallel at intervals are respectively formed on two sides of the insulating body 11, the upper-row terminal integrated part 12 and the lower-row terminal integrated part 13 are respectively fixedly arranged on two sides of the insulating body 11, the upper-row terminal integrated part 12 comprises a plurality of upper-row signal terminals 122 and a plurality of upper-row grounding terminals 123, the upper-row grounding terminals 123 and the upper-row signal terminals 122 are sequentially and alternately arranged in parallel, the upper-row signal terminals 122 comprise an upright upper-row signal terminal main body part 1221, upper-row signal terminal contact arms 1222 and upper-row signal terminal welding parts 1223, the upper-row signal terminal contact arms 1222 are bent and extended from the upper ends of the upper-row signal terminal main body part 1221, the upper-row signal terminal welding parts 1223 are extended from the lower ends of the upper-row signal terminal main body part 1221, the upper ground terminal 123 includes an upstanding upper ground terminal body portion 1231, an upper ground terminal contact arm 1232, and an upper ground terminal solder portion 1233, the upper ground terminal contact arm 1232 extending from the upper end of the upper ground terminal body portion 1231 in a bent manner, the upper ground terminal solder portion 1233 extending from the lower end of the upper ground terminal body portion 1231, the lower terminal body 13 including a plurality of lower signal terminals 132 and a plurality of lower ground terminals 133, the lower ground terminals 133 alternately arranged in parallel with the lower signal terminals 132 in a sequential order, the lower signal terminals 132 including upstanding lower signal terminal body portions 1321, lower signal terminal contact arms 1322, and lower signal terminal solder portions 1323, the lower signal terminal contact arms 1322 extending from the upper end of the lower signal terminal body portion 1321 in a bent manner, the lower row signal terminal welding part 1323 extends from the lower end of the lower row signal terminal main body part 1321, the lower row ground terminal 133 comprises a vertical lower row ground terminal main body part 1331, a lower row ground terminal contact arm 1332 and a lower row ground terminal welding part 1333, the lower row ground terminal contact arm 1332 is bent and extended from the upper end of the lower row ground terminal main body part 1331, the lower row ground terminal welding part 1333 extends from the lower end of the lower row ground terminal main body part 1331, the upper row signal terminal contact arm 1222 and the upper row ground terminal contact arm 1232 are respectively inserted in the upper row terminal accommodating groove 115 of the insulating body 11 in a one-to-one correspondence, the lower row signal terminal contact arms 1322 and the lower row ground terminal contact arms 1332 are inserted in the lower row terminal receiving groove 116 of the insulating body 11 in a one-to-one correspondence manner, the upper row signal terminal welding parts 1223 of the upper row signal terminals 122, the upper row ground terminal welding parts 1233 of the upper row ground terminals 123, the lower row signal terminal welding parts 1323 of the lower row signal terminals 132 and the lower row ground terminal welding parts 1333 of the lower row ground terminals 133 are all located on the same welding plane outside the insulating body 11, the width of the upper row ground terminal main body part 1231 is larger than the width of the upper row signal terminal main body part 1221, and the width of the lower row ground terminal main body part 1331 is larger than the width of the lower row signal terminal main body part 1321.
Because the upper-row grounding terminals 123 are respectively located at two sides of the upper-row signal terminals 122, the lower-row grounding terminals 133 are respectively located at two sides of the lower-row signal terminals 132, and the widths of the upper-row grounding terminal main body part 1231 and the lower-row grounding terminal main body part 1331 are respectively greater than those of the upper-row signal terminal main body part 1221 and the lower-row signal terminal main body part 1321, the upper-row grounding terminal main body part 1231 and the lower-row grounding terminal main body part 1331 are distributed to form a high-frequency electromagnetic shielding cover structure, which respectively plays a high-frequency shielding effect on the upper-row signal terminals 122 and the lower-row signal terminals 132, so that excessive interference is avoided in the connector high-frequency signal transmission process, and the high-frequency performance of the electronic product is improved.
At least one hollow structure is arranged on the upper grounding terminal main body part 1231 at intervals along the extending direction of the upper grounding terminal main body part. The hollow structure is arranged on the upper-row grounding terminal main body part 1231, so that the material consumption of the upper-row grounding terminal 123 can be saved, the weight of the upper-row grounding terminal 123 can be reduced, the overweight of a connector product is avoided, and the light design is realized.
The upper row terminal integrated piece 12 and the lower row terminal integrated piece 13 are respectively and fixedly installed on two sides of the insulating body 11, and are as follows:
the upper-row terminal integrated part 12 further comprises an upper-row terminal base 121 made of an insulating material, wherein an upper-row signal terminal main body part 1221 of each upper-row signal terminal 122 and an upper-row ground terminal main body part 1231 of each upper-row ground terminal 123 are fixedly arranged on the upper-row terminal base 121 in a distributed manner, and each upper-row signal terminal contact arm 1222, upper-row ground terminal contact arm 1232, upper-row signal terminal welding part 1223 and upper-row ground terminal welding part 1233 respectively extend out of the upper-row terminal base 121;
the lower terminal integrated part 13 further includes a lower terminal base 131 made of an insulating material, the lower signal terminal main body portion 1321 of each lower signal terminal 132 and the lower ground terminal main body portion 1331 of each lower ground terminal 133 are fixedly disposed on the lower terminal base 131 in a distributed manner, and each lower signal terminal contact arm 1322, lower ground terminal contact arm 1332, lower signal terminal welding portion 1323 and lower ground terminal welding portion 1333 extend out of the lower terminal base 131;
the upper row terminal base 121 and the lower row terminal base 131 are respectively and fixedly connected with two side walls of the insulating body 11 through a concave-convex inserting and fixing structure or through a hot melt bonding structure.
The upper row of signal terminals 122 and the upper row of grounding terminals 123 are fixedly arranged on the upper row of terminal base 121 to form an upper row of terminal integrated piece 12, the lower row of signal terminals 132 and the lower row of terminals 133 are fixedly arranged on the lower row of terminal base 131 to form a lower row of terminal integrated piece 13, the upper row of signal terminals 122, the upper row of grounding terminals 123, the lower row of signal terminals 132 and the lower row of grounding terminals 133 are fixedly connected with the insulating body 11 through the upper row of terminal base 121 and the lower row of terminal base 131, the upper row of signal terminals 122, the upper row of grounding terminals 123, the lower row of signal terminals 132 and the lower row of grounding terminals 133 are positioned on the insulating body 11, and the upper row of signal terminals 122, the upper row of grounding terminals 123, the lower row of signal terminals 132 and the lower row of grounding terminals 133 are prevented from being possibly blocked by the upper row of terminals through the fixing parts, so that the attenuation degree of signals is effectively slowed down, the electronic products are free from generating excessive interference signals in the high-frequency transmission process, and the high-frequency performance of the products is further improved;
when the upper row terminal base 121, the lower row terminal base 131 and the two side walls of the insulating body 11 are in concave-convex inserting and fixing positions, the concave-convex inserting and fixing structure can be buckled and positioned through inserting and buckling a socket with a clamping groove and an elastic arm with a back buckle, and the concave-convex inserting and fixing structure and the elastic arm can also be buckled and connected and positioned through a spherical bulge and a C-shaped slot;
when the upper row terminal base 121 and the lower row terminal base 131 are fixedly positioned by adopting a hot melt adhesive structure with two side walls of the insulating body 11, after the upper row terminal base 121 and the lower row terminal base 131 are respectively in close contact with the two side walls of the insulating body 11, the contact parts between the upper row terminal base 121 and the lower row terminal base 131 are hot melted in a heating mode, and after the upper row terminal base 121 and the lower row terminal base 131 are cooled, the upper row terminal base 121 and the lower row terminal base 131 are fixed together to form an integrated structure, and after the plug posts pass through the openings on the upper row terminal base 121 and the lower row terminal base 131, the plug posts are integrated with the openings of the upper row terminal base 121 and the lower row terminal base 131 in a hot melting mode.
The upper signal terminal body 1221 of the upper signal terminal 122 and the upper ground terminal body 1231 of the upper ground terminal 123 are integrally molded with the upper terminal body 121, and the lower signal terminal body 1321 of the lower signal terminal 132 and the lower ground terminal body 1331 of the lower ground terminal 133 are integrally molded with the lower terminal body 131.
The upper signal terminal 122 and the upper ground terminal 123 may be fixed to the upper terminal body 121 and the lower signal terminal 132 and the lower ground terminal 133 may be fixed to the lower terminal body 131 by other means to form an integral structure, for example, a clamping groove is formed in the upper signal terminal body 1221, the upper ground terminal 123, the lower signal terminal body 1321 and the lower ground terminal body 1331, a slot with a hook is formed in the upper terminal body 121 and the lower terminal body 131, and the two slots are positioned by being engaged after being plugged, or a plurality of open grooves for accommodating the upper signal terminal 122, the upper ground terminal 123, the lower signal terminal 132 and the lower ground terminal 133 are formed in the upper terminal body 121 and the lower terminal body 131, and the upper signal terminal body 1221, the upper ground terminal body 1231, the lower signal terminal body 1321 and the lower ground terminal body 1331 are clamped and positioned after being fixedly assembled with the insulating body 11.
The two side walls of the insulating body 11 are respectively provided with a plurality of upper end integrated piece accommodating grooves 111 and a plurality of lower end integrated piece accommodating grooves 1121112, the side walls of the upper end integrated piece accommodating grooves 111 and the lower end integrated piece accommodating grooves 1121112 on the two side walls of the insulating body 11 are respectively formed with upper end integrated positioning ribs and lower end integrated positioning ribs which extend transversely and vertically, the upper row terminal base 121 and the lower row terminal base 131 are respectively provided with a plurality of upper end integrated piece bumps and a plurality of lower end integrated piece bumps towards one side wall of the insulating body 11, upper end integrated piece positioning grooves which extend transversely and vertically are formed between the upper end integrated piece bumps of the upper row terminal base 121, lower end integrated piece positioning grooves 1311 which extend transversely and vertically are formed between the lower end integrated piece bumps of the lower row terminal base 131, the upper end integrated piece bumps and the lower end integrated piece bumps are respectively and correspondingly inserted into the lower end integrated piece accommodating grooves 1121112 of the upper end integrated piece accommodating grooves 111, and the upper end integrated positioning ribs and the lower end integrated piece positioning grooves 1311 are respectively and correspondingly inserted into the upper end integrated piece positioning grooves 1311.
The upper end integrated part accommodating grooves 111 and the lower end integrated part accommodating grooves 1121112 are respectively formed in the two side walls of the insulating body 11, the upper end integrated part protruding blocks and the lower end integrated part protruding blocks are arranged on the upper row of terminal matrixes 121 and the lower row of terminal matrixes 131, and the tight plug-in positioning of the insulating body 11 and the upper row of terminal matrixes 121 and the lower row of terminal matrixes 131 is realized in a one-to-one corresponding plug-in manner, so that the joint parts of the upper row of terminal matrixes 121 and the lower row of terminal matrixes 131 are in staggered plug-in hot melting integration, the connection position precision and the connection firmness of the upper row of terminal matrixes 121 and the insulating body 11 are ensured, and the plug-in positioning of the upper end integrated part locating grooves and the lower end integrated part locating grooves 1311 on the lower row of terminal matrixes 131 in the mutually perpendicular directions is formed through the transverse and vertical crossed upper end integrated positioning ribs and the lower end integrated part locating grooves 1311 on the upper row of the insulating body 11.
The two side walls of the insulating body 11 are respectively provided with a plurality of upper end integrated positioning teeth 1112 and lower end integrated positioning teeth 1122 which are arranged at intervals in parallel along the arrangement direction of the terminals, the upper row of terminal substrates 121 and the lower row of terminal substrates 131 are respectively provided with a plurality of upper end integrated positioning holes 1212 and lower end integrated positioning holes 1312 towards one side wall of the insulating body 11, and the upper end integrated positioning teeth 1112 and the lower end integrated positioning teeth 1122 are respectively inserted into the upper end integrated positioning holes 1212 and the lower end integrated positioning holes 1312 in a one-to-one correspondence. The upper end integrated piece positioning teeth 1112 and the lower end integrated piece positioning teeth 1122 on the two side walls of the insulating body 11 are spliced with the upper end integrated piece positioning holes 1212 and the lower end integrated piece positioning holes 1312 on the upper row of terminal matrixes 121 and the lower row of terminal matrixes 131, so that the insulating body 11, the row of terminal matrixes and the lower row of terminal matrixes 131 are positioned towards the arrangement direction of the terminals, and the correspondence between the positions of the terminals and the terminal accommodating grooves is formed, and the deformation of the upper row of terminal integrated pieces 12 and the lower row of terminal integrated pieces 13 in the assembling or hot melting process is avoided, so that the assembling precision of the terminals and the terminal accommodating grooves is prevented from being influenced.
The upper row terminal base 121 and the lower row terminal base 131 are respectively provided with an upper row terminal accommodating space and a lower row terminal accommodating space which are opposite to the upper end integrated piece positioning teeth 1112 and the lower end integrated piece positioning teeth 1122, and the upper row terminal main body part and the lower row terminal main body part are respectively and fixedly inserted in the upper row terminal accommodating space and the lower row terminal accommodating space in a one-to-one correspondence manner. Terminal integrated into one piece in terminal base member location tooth department has guaranteed to have sufficient material around the terminal as supporting, guarantees that the location of terminal in the terminal base member is stable, and the repositioning of each terminal position is made to the integral piece location tooth simultaneously, has finally guaranteed that each terminal is pegged graft with terminal holding tank accuracy alignment on the insulator 11 to guaranteed the position accuracy of terminal in the terminal holding tank, guaranteed that the contact part of terminal is just right to switching on with electronic card 3 golden finger.
The end side walls of the upper row of signal terminal contact arms 1222 are provided with convex upper row of signal terminal contact parts 12221, the end side walls of the upper row of ground terminal contact arms 1232 are provided with convex upper row of ground terminal contact parts 12321, the end side walls of the lower row of terminal contact arms are provided with convex lower row of terminal contact parts, and the upper row of signal terminal contact parts 12221 and the upper row of ground terminal contact parts 12321 are respectively arranged in one-to-one correspondence with the lower row of terminal contact parts.
The upper row signal terminal body 1221, the upper row ground terminal body 1231, and the lower row terminal body have an uneven structure formed on the side walls thereof. The rugged structure is formed on the side wall of the main body part of the terminal, so that the terminal and the terminal matrix are firmly connected after being integrally formed, and the terminal is prevented from being pulled out or loosened under the stress.
The side walls of the upper row terminal body 121 and the lower row terminal body 131 facing away from the insulating body 11 are further provided with at least one open slot structure extending along the terminal arrangement direction, and the upper row signal terminal body 1221, the upper row ground terminal body 1231 and the lower row terminal body are exposed outside the upper row terminal body 121 and the lower row terminal body 131 through the open slot structure.
The foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principles of the present invention, and it should be considered as being within the scope of the present invention.
Claims (10)
1. The utility model provides a high frequency transmission card edge connector, includes insulator, goes up row terminal integral part and lower row terminal integral part, insulator both sides are formed with a plurality of parallel interval arrangement's upper row terminal accepting groove and lower row terminal accepting groove respectively, its characterized in that: the upper row terminal integrated piece and the lower row terminal integrated piece are respectively and fixedly arranged on two sides of the insulating body, the upper row terminal integrated piece comprises a plurality of upper row signal terminals and a plurality of upper row grounding terminals, the upper row grounding terminals and the upper row signal terminals are sequentially and alternately arranged in parallel, the upper row signal terminals comprise an upright upper row signal terminal main body part, an upper row signal terminal contact arm and an upper row signal terminal welding part, the upper row signal terminal contact arm is formed by bending and extending from the upper end of the upper row signal terminal main body part, the upper row signal terminal welding part is formed by extending from the lower end of the upper row signal terminal main body part, the upper row grounding terminal comprises an upright upper row grounding terminal main body part, an upper row grounding terminal contact arm and an upper row grounding terminal welding part, the upper row grounding terminal contact arm is formed by bending and extending from the upper end of the upper row grounding terminal main body part, the upper row grounding terminal welding part extends from the lower end of the upper row grounding terminal main body part, the lower row terminal integrated piece comprises a plurality of lower row signal terminals and a plurality of lower row grounding terminals, the lower row grounding terminals and the lower row signal terminals are sequentially and alternately arranged in parallel, the lower row signal terminals comprise a vertical lower row signal terminal main body part, a lower row signal terminal contact arm and a lower row signal terminal welding part, the lower row signal terminal contact arm is bent and extended from the upper end of the lower row signal terminal main body part, the lower row signal terminal welding part is extended from the lower end of the lower row signal terminal main body part, the lower row grounding terminal comprises a vertical lower row grounding terminal main body part, a lower row grounding terminal contact arm and a lower row grounding terminal welding part, the lower row grounding terminal contact arm is bent and extended from the upper end of the lower row grounding terminal main body part, the upper row signal terminals, the upper row grounding terminals, the lower row signal terminals and the lower row grounding terminals are not provided with fixing parts, the upper row signal terminal contact arms and the upper row grounding terminal contact arms are respectively inserted in the upper row terminal accommodating grooves of the insulating body in one-to-one correspondence, the lower row signal terminal contact arms and the lower row grounding terminal contact arms are respectively inserted in the lower row terminal accommodating grooves of the insulating body in one-to-one correspondence, the upper row signal terminal welding parts of the upper row signal terminals, the upper row grounding terminal welding parts of the upper row grounding terminals, the lower row signal terminal welding parts of the lower row signal terminals and the lower row grounding terminal welding parts of the lower row grounding terminals are all positioned on the same welding plane outside the insulating body, and the width of the upper row grounding terminal main body part is larger than that of the upper row signal terminal main body part, and the width of the lower row grounding terminal main body part is larger than that of the lower row signal terminal main body part.
2. The high frequency transmission card edge connector according to claim 1, wherein: at least one hollow structure is arranged on the upper row of grounding terminal main body part at intervals along the extending direction of the upper row of grounding terminal main body part.
3. The high frequency transmission card edge connector according to claim 1, wherein: the structure that upper row terminal integrated piece and lower row terminal integrated piece are fixed mounting in insulator both sides respectively is:
the upper row terminal integrated piece further comprises an upper row terminal base body made of insulating materials, upper row signal terminal main body parts of all upper row signal terminals and upper row grounding terminal main body parts of all upper row grounding terminals are fixedly arranged on the upper row terminal base body in a distributed mode, and all upper row signal terminal contact arms, upper row grounding terminal contact arms, upper row signal terminal welding parts and upper row grounding terminal welding parts extend out of the upper row terminal base body respectively;
the lower row terminal integrated piece further comprises a lower row terminal base body made of insulating materials, wherein a lower row signal terminal main body part of each lower row signal terminal and a lower row grounding terminal main body part of each lower row grounding terminal are fixedly arranged on the lower row terminal base body, and each lower row signal terminal contact arm, each lower row grounding terminal contact arm, each lower row signal terminal welding part and each lower row grounding terminal welding part extend out of the lower row terminal base body respectively;
the upper row of terminal substrates and the lower row of terminal substrates are respectively and fixedly connected with the two side walls of the insulating body through concave-convex splicing and fixing structures or through hot melt adhesive structures.
4. A high frequency transmission card edge connector according to claim 3, wherein: the upper row signal terminal main body part of the upper row signal terminal and the upper row grounding terminal main body part of the upper row grounding terminal are of an in-mold integrated structure, and the lower row signal terminal main body part of the lower row signal terminal and the lower row grounding terminal main body part of the lower row grounding terminal are of an in-mold integrated structure.
5. A high frequency transmission card edge connector according to claim 3, wherein: the insulation body is characterized in that a plurality of upper end integrated part accommodating grooves and a plurality of lower end integrated part accommodating grooves are respectively formed in the two side walls of the insulation body, an upper end integrated positioning rib and a lower end integrated positioning rib which extend transversely and vertically are respectively formed in the side walls of the upper end integrated part accommodating grooves and the lower end integrated part accommodating grooves in the two side walls of the insulation body, a plurality of upper end integrated part convex blocks and a plurality of lower end integrated part convex blocks are respectively arranged on the upper end integrated part base body and the lower end integrated part base body towards one side wall of the insulation body, an upper end integrated part positioning groove which extends transversely and vertically is formed between the upper end integrated part convex blocks of the upper end terminal base body, a lower end integrated part positioning groove which extends transversely and vertically is formed between the lower end integrated part convex blocks of the lower end terminal base body, the upper end integrated part convex blocks and the lower end integrated part convex blocks are respectively inserted into the upper end integrated part accommodating grooves and the lower end integrated part positioning grooves in a one-to-one correspondence manner, and the upper end integrated positioning ribs and the lower end integrated positioning ribs are inserted into the upper end integrated part positioning grooves and the lower end integrated part positioning grooves in one-to-one correspondence manner.
6. A high frequency transmission card edge connector according to claim 3, wherein: the upper-end integrated part positioning teeth and the lower-end integrated part positioning teeth which are arranged at intervals in parallel along the arrangement direction of the terminals are respectively arranged on two side walls of the insulating body, a plurality of upper-end integrated part positioning holes and lower-end integrated part positioning holes are respectively arranged on one side wall of the upper-row terminal base body and the lower-row terminal base body towards the insulating body, and the upper-end integrated part positioning teeth and the lower-end integrated part positioning teeth are respectively inserted in the upper-end integrated part positioning holes and the lower-end integrated part positioning holes in a one-to-one correspondence manner.
7. The high frequency transmission card edge connector according to claim 6, wherein: the upper-row terminal base body and the lower-row terminal base body are respectively provided with an upper-row terminal accommodating space and a lower-row terminal accommodating space which are opposite to the upper-end integrated piece positioning teeth and the lower-end integrated piece positioning teeth one by one, and the upper-row terminal main body part and the lower-row terminal main body part are respectively and fixedly inserted in the upper-row terminal accommodating space and the lower-row terminal accommodating space in one-to-one correspondence.
8. A high frequency transmission card edge connector according to claim 3, wherein: the upper row signal terminal contact arm end side wall is provided with a convex upper row signal terminal contact part, the upper row grounding terminal contact arm end side wall is provided with a convex upper row grounding terminal contact part, the lower row terminal contact arm end side wall is provided with a convex lower row terminal contact part, and the upper row signal terminal contact part and the upper row grounding terminal contact part are respectively arranged in one-to-one correspondence with the lower row terminal contact part.
9. A high frequency transmission card edge connector according to claim 3, wherein: the side walls of the upper row of signal terminal main body parts, the upper row of grounding terminal main body parts and the lower row of terminal main body parts are respectively provided with an uneven structure.
10. A high frequency transmission card edge connector according to claim 3, wherein: the upper row of terminal base bodies and the lower row of terminal base bodies are further provided with at least one open slot structure extending along the terminal arrangement direction on one side wall of the insulating body, and the upper row of signal terminal main body parts, the upper row of grounding terminal main body parts and the lower row of terminal main body parts are exposed outside the upper row of terminal base bodies and the lower row of terminal base bodies through the open slot structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111616595.XA CN114361829B (en) | 2021-12-27 | 2021-12-27 | High-frequency transmission card edge connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111616595.XA CN114361829B (en) | 2021-12-27 | 2021-12-27 | High-frequency transmission card edge connector |
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| CN114361829A CN114361829A (en) | 2022-04-15 |
| CN114361829B true CN114361829B (en) | 2023-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111616595.XA Active CN114361829B (en) | 2021-12-27 | 2021-12-27 | High-frequency transmission card edge connector |
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| CN (1) | CN114361829B (en) |
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| TWI607609B (en) * | 2014-03-24 | 2017-12-01 | 連展科技股份有限公司 | Electrical plug connector |
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| Publication number | Publication date |
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| CN114361829A (en) | 2022-04-15 |
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