CN108183349B - High-density connector and sheet-type needle seat - Google Patents
High-density connector and sheet-type needle seat Download PDFInfo
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- CN108183349B CN108183349B CN201810001975.4A CN201810001975A CN108183349B CN 108183349 B CN108183349 B CN 108183349B CN 201810001975 A CN201810001975 A CN 201810001975A CN 108183349 B CN108183349 B CN 108183349B
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- 210000001503 joint Anatomy 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 abstract description 13
- 238000003032 molecular docking Methods 0.000 description 9
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
- H01R13/518—Means for holding or embracing insulating body, e.g. casing, hoods for holding or embracing several coupling parts, e.g. frames
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
Abstract
The invention discloses a high-density connector and a sheet-type needle seat. A guiding bracket is formed on the insulating shell of the high-density connector to realize the guiding and locking functions of the plug connector. The sheet-type needle bases comprise signal needle bases, signal needle bases and grounding needle bases which are adjacently arranged, wherein two adjacent signal needle bases form a pair, and signal terminals in the two adjacent signal needle bases form a plurality of differential pairs capable of being laterally coupled, so that the loss of signal transmission is reduced, and the differential signal transmission performance is improved.
Description
Technical Field
The invention relates to a connector, in particular to a high-density connector and a sheet-type needle seat, wherein a guide bracket is directly arranged on an insulating shell of the high-density connector so as to realize the functions of guiding and locking a plug connector; in addition, differential pair signal terminals with side coupling are arranged in the sheet-shaped needle seat so as to reduce the loss of signal transmission and improve the transmission performance of differential signals.
Background
At present, connectors are developing toward high performance and high density, for example, mini SAS HD (high density) connectors are high density interfaces, small in size, capable of saving space in a device, larger in bandwidth and capacity, and faster in data transmission, and are mainly applied to connection of large servers, high-speed network servers and network storage devices.
High performance high density connectors can create problems such as reduced electrical isolation due to denser terminal placement, which can lead to signal degradation; there is also the problem of providing a guide frame to ensure accurate mating of the plug connector with the opposing receptacle connector.
Accordingly, it is desirable to improve the electrical performance of the connector by changing the terminal configuration, and to improve the workability of the connector by designing the guide frame.
Disclosure of Invention
The main objective of the present invention is to provide a high-density connector, in which a guiding bracket is directly formed on an insulating housing thereof, so as to simultaneously realize guiding and locking functions of a plug connector; meanwhile, the high-density connector also sets the differential pair signal terminals to be of a side coupling structure so as to reduce the loss of signal transmission and improve the transmission performance of differential signals.
Another object of the present invention is to provide a sheet-type hub, which is configured in a signal hub-ground hub mode, and the differential pair signal terminals coupled by the sides can reduce the loss of signal transmission, improve the transmission performance of differential signals, and simultaneously realize the electromagnetic shielding function through the ground hub.
Other objects and advantages of the present invention will be further appreciated from the technical features disclosed in the present invention.
In order to achieve the above purpose, the invention adopts the following technical scheme: a high density connector includes an insulative housing and a header module mounted in the insulative housing. The insulating shell is provided with a base, a butt joint part extending forwards from the front surface of the base, and a guide bracket formed on the top surface of the base and extending forwards to the position above the butt joint part; wherein the base is formed with a cavity; at least one electronic card receiving groove and two rows of terminal receiving grooves distributed on the upper side and the lower side of the electronic card receiving groove are formed on the front surface of the abutting part, and the terminal receiving grooves are communicated with the cavity. The needle seat module is accommodated in the cavity of the insulating shell and is assembled by a plurality of sheet-shaped needle seats arranged in a side-by-side structure; the sheet-type needle bases comprise a first sheet-type needle base, a second sheet-type needle base and a third sheet-type needle base which are adjacently arranged, wherein the first sheet-type needle base and the second sheet-type needle base are signal needle bases and are used for supporting a plurality of signal terminals; the third sheet-shaped needle seat is a grounding needle seat and is used for supporting at least one grounding terminal; the pin holder module is configured in a repeated mode of signal pin holder-grounding pin holder, wherein two adjacent signal pin holders form a pair, and signal terminals in the two adjacent signal pin holders form a plurality of differential pairs capable of being laterally coupled.
In one embodiment, the guiding bracket has a horizontal portion provided with a locking structure and two vertical portions symmetrically located at two sides of the horizontal portion, wherein the rear end of the horizontal portion is connected with the top surface of the base portion, the front end of the horizontal portion is located above the abutting portion, and the horizontal portion and the two vertical portions together define a guiding space located above the abutting portion.
In one embodiment, the insulating housing further comprises two support posts symmetrically formed on both sides of the base and vertically extending to be flush with the bottom surface of the base, the two support posts are respectively located below the two vertical parts, and a hole is formed in the bottom surface of each support post.
In order to achieve the above purpose, the present invention also adopts the following technical scheme: the sheet-shaped needle seat comprises a first sheet-shaped needle seat, a second sheet-shaped needle seat and a third sheet-shaped needle seat which are sequentially arranged side by side. The first sheet-type pin holder is a signal pin holder and comprises a first frame and a plurality of first signal terminals supported by the first frame, wherein each first signal terminal comprises a first signal tail part extending from a first edge of the first frame, a first signal contact part extending from a second edge of the first frame and a first middle part positioned between the first signal tail part and the first signal contact part; wherein the first intermediate portion is located in a vertical plane and is exposed to air. The second sheet-type pin holder is a signal pin holder and comprises a second frame and a plurality of second signal terminals supported by the second frame, wherein each second signal terminal comprises a second signal tail part extending from a first edge of the second frame, a second signal contact part extending from a second edge of the second frame and a second middle part positioned between the second signal tail part and the second signal contact part; wherein the second intermediate portions also lie in the vertical plane and are exposed to air, the second intermediate portions being capable of being coupled together laterally with the corresponding first intermediate portions so that each second signal terminal can form a differential pair with the corresponding first signal terminal. The third sheet-type needle seat is a grounding needle seat and comprises a third frame and at least one grounding terminal supported by the third frame, wherein the grounding terminal is provided with a row of grounding tail parts extending from the bottom edge of the third frame, a row of grounding contact parts extending from the side edge of the third frame and a grounding main body part positioned between the grounding tail parts and the grounding contact parts; wherein the grounding main body is positioned at one side of the second sheet-type needle seat to cover the first and second middle parts positioned in the first and second sheet-type needle seats.
In one embodiment, in each differential pair, at least one of the first signal contact and the second signal contact is out of the vertical plane, such that the first signal contact and the second signal contact are arranged in parallel and form a broadside-to-broadside pattern; at least one of the first signal tail and the second signal tail is out of the vertical plane, so that the first signal tail and the second signal tail are staggered and arranged, and are neither coplanar nor coaxial.
In one embodiment, the first signal terminal further includes a head position adjusting structure and a tail position adjusting structure, wherein the head position adjusting structure is interposed between the first middle portion and the first signal contact portion, and is used for changing the relative positions of the first signal contact portion and the first middle portion, so that the first signal contact portion is separated from the vertical plane in which the first middle portion is located; the tail position adjusting structure is arranged between the first middle part and the first signal tail part and is used for changing the relative position of the first signal tail part and the first middle part so that the first signal tail part is separated from the vertical plane where the first middle part is positioned; the second signal terminal also further includes a header position adjustment structure interposed between the second intermediate portion and the second signal contact portion and a tail position adjustment structure interposed between the second intermediate portion and the second signal tail.
Compared with the prior art, the high-density connector has the advantages that the guide bracket is directly formed on the insulating shell of the high-density connector, so that the functions of guiding and locking the plug connector are realized at the same time; meanwhile, the high-density connector also sets the signal terminals as differential pairs with side coupling so as to reduce the loss of signal transmission and improve the transmission performance of differential signals. According to the sheet-type needle seat, the signal terminals of each differential pair are arranged to be exposed at the middle parts, and the side coupling is realized between the middle parts through an air medium, so that the loss of signal transmission is reduced, and the differential signal transmission performance is improved.
Drawings
Fig. 1 is a schematic perspective view of a high-density connector according to the present invention.
Fig. 2 is a schematic perspective view of another direction of the high-density connector according to the present invention.
Fig. 3 is a schematic view of the high-density connector of the present invention mounted on a circuit board.
Fig. 4 is a schematic view of the high-density connector of the present invention mounted on a circuit board in another direction.
Fig. 5 is a schematic view of a disassembled structure of the high-density connector of the present invention.
Fig. 6 is a schematic view of the high density connector of fig. 5 in another direction.
Fig. 7 is a schematic view of an insulating housing structure of the high-density connector of the present invention.
Fig. 8 is a schematic view of the hub module of the high-density connector of the present invention after being detached from a connecting piece.
Fig. 9 is a schematic view showing the combined structure of the first, second and third sheet-type needle holders according to the present invention.
Fig. 10 is a schematic view showing the combined structure of the first and second sheet-type needle holders according to the present invention.
Fig. 11 is a schematic cross-sectional view showing the combined structure of the first and second wafer-shaped needle holders according to the present invention along the line O-O shown in fig. 10.
Fig. 12 is a schematic view showing the structure of the first sheet-type hub and the second sheet-type hub after separation, wherein the detailed structure of the second sheet-type hub is mainly shown.
Fig. 13 is a schematic view showing the structure of the first sheet-type hub and the second sheet-type hub after separation, wherein the detailed structure of the first sheet-type hub is mainly shown.
Fig. 14 is a schematic structural view of the signal terminal assembly of the present invention.
Fig. 15 is a schematic view showing a structure of the signal terminal assembly of the present invention along another direction.
Fig. 16 is a schematic plan view of the signal terminal assembly of the present invention shown in fig. 15.
Fig. 17 is a schematic side view of the signal terminal assembly of the present invention shown in fig. 15.
Fig. 18 is a schematic structural view of a third sheet-type hub according to the present invention.
Fig. 19 is a schematic view of the structure of the grounding terminal of the present invention.
The reference numerals in the above figures are explained as follows:
high density connector 1 insulating housing 10
Base 11 cavity 110
Rear portion 114 of base 112
Fixing groove 116 butt joint part 12
Terminal receiving groove 122 of electronic card receiving groove 120
The horizontal part 130 of the guide bracket 13
Vertical portion 132 latch structure 133
Guide space 134 strut 14
Hole 140 hub module 20
First sheet type needle stand 21 first frame 210
First edges 211, 221 second edges 212, 222
First bump 213 second bump 214
Second frame 220 of second sheet-type needle seat 22
Third sheet-shaped needle stand 23 and third frame 230
First signal terminal 31 first signal tail 310
First signal contact 311 first intermediate portion 312
Second signal terminal 32 second signal tail 320
Second signal contact 321 and second intermediate portion 322
Ground terminal 33 ground tail 330
Grounding main body 332 of grounding contact 331
Head position adjustment structures 34, 34 'tail position adjustment structures 35, 35'
Connecting piece 40 fixing piece 50
Width W of butt joint part of circuit board 2
A vertical plane P.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the invention may be practiced. The directional terms referred to in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer only to the directions of the attached drawings. Accordingly, directional terminology is used to describe and understand the invention and is not limiting of the invention.
Referring to fig. 1 to 4, the high-density connector 1 of the present invention is a right-angle connector, which is mounted on a circuit board 2. In other embodiments, the high-density connector 1 of the present invention may be disposed on the circuit board 2 at other angles, for example, the high-density connector 1 may be disposed as a vertical connector for being vertically mounted on the circuit board 2.
Referring to fig. 5 and 6, the high-density connector 1 of the present invention includes an insulating housing 10, and a header module 20 mounted in the insulating housing 10.
As shown in fig. 5, 6 and 7, the insulating housing 10 has a base 11, a docking portion 12 extending forward from the front surface of the base 11, and a guide bracket 13 formed on the top surface of the base 11 and extending forward above the docking portion 12. As shown in fig. 6 and 7, the base 11 is formed with a cavity 110 for receiving the hub module 20. Specifically, the base 11 has an open bottom 112 and an open rear 114 to facilitate mounting of the hub module 20. A row of fixing grooves 116 extending toward the docking portion 12 are formed above the cavity 110 for fixing the hub module 20.
As shown in fig. 5 and 7, the front surface of the docking portion 12 is formed with one or more horizontal electronic card receiving grooves 120, and in this embodiment, fig. 5 shows two parallel electronic card receiving grooves 120 for receiving an electronic card (or circuit board card, not shown) to be inserted. A row of terminal receiving slots 122 are respectively disposed on the upper and lower sides of each card receiving slot 120. As shown in fig. 6, the terminal receiving grooves 122 communicate with the cavity 110 of the base 11.
As shown in fig. 5 and 7, the guiding bracket 13 has a horizontal portion 130 with a locking structure 133 and two vertical portions 132 symmetrically located at two sides of the horizontal portion 130, wherein the rear end of the horizontal portion 130 is connected to the top surface of the base 11, and the front end of the horizontal portion 130 is located above the docking portion 12 and is spaced apart from the top surface of the docking portion 12 by a certain distance, and the distance between the two vertical portions 132 is greater than the width W of the docking portion 12, so that the horizontal portion 130 and the two vertical portions 132 together define a guiding space 134 above the docking portion 12. The guide bracket 13 provides a guiding and locking action when a plug connector (not shown) is mated with the high density connector 1, thereby restraining the plug connector in a fixed position. In this embodiment, the locking structure 133 is a recess for engaging with a protrusion of the plug connector to fix the plug connector. In other embodiments, the vertical portion 132 of the guide bracket 13 may extend further downward to form a semi-enclosed shape for the docking portion 12.
In addition, as shown in fig. 5 and 7, the insulating housing 10 further includes two supporting columns 14 symmetrically formed at both sides of the base 11 and vertically extending to be flush with the bottom surface of the base 11, and a hole 140 is formed at the bottom surface of each supporting column 14 for fixing with the circuit board 2 as shown in fig. 3.
As shown in fig. 8, the hub module 20 is assembled by a plurality of sheet-type hubs arranged in a side-by-side structure, and the sheet-type hubs include a first sheet-type hub 21, a second sheet-type hub 22, and a third sheet-type hub 23 that are adjacently arranged, wherein the first sheet-type hub 21 and the second sheet-type hub 22 are signal hubs for supporting a plurality of signal terminals 31, 32; the third wafer-shaped header 23 is a ground header for supporting at least one ground terminal 33, and the detailed structures of the signal terminals 31, 32 and the ground terminal 33 will be described later. Thus, the hub module 20 is configured in a repeating pattern of signal hub-ground hub. Two adjacent signal pins (first sheet-type pin 21 and second sheet-type pin 22) form a pair, and signal terminals 31, 32 located therein form a plurality of differential pairs coupled together. And a ground hub (third sheet-type hub 23) is disposed between each two pairs of adjacent signal hubs.
As shown in fig. 13, the first wafer-type header 21 includes a first frame 210 and a plurality of first signal terminals 31 supported by the first frame 210, each of the first signal terminals 31 including a first signal tail 310 extending from a first edge 211 of the first frame 210, a first signal contact 311 extending from a second edge 212 of the first frame 210, and a first intermediate portion 312 between the first signal tail 310 and the first signal contact 311, wherein the first intermediate portion 312 is located on a side of the first frame 210 facing the second wafer-type header 22, and is exposed to air. The first intermediate portions 312 of these first signal terminals 31 lie in the same vertical plane P (reference numerals are seen in fig. 14-17). The first signal tails 310 of the first signal terminals 31 are aligned in a transverse direction (X-axis) and are offset from the vertical plane P to be mounted to the circuit board 2 as shown in fig. 3. The first signal contact portions 311 of the first signal terminals 31 are aligned in a longitudinal direction (Y-axis) and are out of the vertical plane P. In this embodiment, the first edge 211 is adjacent to and perpendicular to the second edge 212.
As shown in fig. 12, the second sheet-type hub 22 has a structure similar to that of the first sheet-type hub 21. The second wafer 22 includes a second frame 220 and a plurality of second signal terminals 32 supported by the second frame 220, each second signal terminal 32 including a second signal tail 320 extending from a first edge 221 of the second frame 220, a second signal contact 321 extending from a second edge 222 of the second frame 220, and a second intermediate portion 322 between the second signal tail 320 and the second signal contact 321. In this embodiment, the second intermediate portion 322 is located on the side of the second frame 220 facing the first sheet type needle mount 21 and is exposed to air, as shown in fig. 12. Likewise, the second intermediate portions 322 of the second signal terminals 32 also lie in the same vertical plane P (reference numerals are seen in fig. 14-17). The second signal tails 320 of the second signal terminals 32 are aligned in a transverse direction (X-axis) and are offset from the vertical plane P. The second signal contact portions 321 of these second signal terminals 32 are aligned in a longitudinal direction (Y axis) and are out of the vertical plane P.
As shown in fig. 18 and 19, the third wafer-shaped header 23 includes a third frame 230 and at least one ground terminal 33 supported by the third frame 230, the ground terminal 33 having a row of ground tail portions 330 extending from a bottom edge of the third frame 230, a row of ground contact portions 331 extending from a side edge of the third frame 230, and a ground body portion 332 disposed between the ground tail portions 330 and the ground contact portions 331.
As shown in fig. 9, when the first sheet type pin holder 21 and the second sheet type pin holder 22 are disposed side by side, all the signal terminals 31, 32 located in the first sheet type pin holder 21 and the second sheet type pin holder 22 constitute a signal terminal assembly 30 of the present invention (reference numerals are seen in fig. 14). Wherein each first signal terminal 31 forms a differential pair coupled together with a corresponding second signal terminal 32. In the present embodiment, the first sheet type hub 21 includes four first signal terminals 31, and the second sheet type hub 22 includes four second signal terminals 32, so that when the first sheet type hub 21 and the second sheet type hub 22 are combined together, four differential pairs 30a, 30b, 30c, 30d can be formed that are coupled together. The middle portions 312 and 322 of the first signal terminals 31 and the second signal terminals 32 are located in the same vertical plane P, as shown in fig. 14.
As shown in fig. 9 and 19, when the third wafer-type header 23 is disposed side by side with the first and second wafer-type headers 21 and 22, the grounding main body 332 of the grounding terminal 33 is located on one side of the second wafer-type header 22, that is, on one side of the intermediate portions 312 and 322 of the signal terminal assembly 30 (reference numeral see fig. 14) of the present invention, so as to cover the entire intermediate portions 312 and 322 on one side of the second wafer-type header 22 to provide shielding. The row of ground contact portions 331 of the ground terminal 33 is juxtaposed in a vertical direction (Z-axis) with the signal contact portions 311, 321 of the signal terminal assembly 30. The row of ground tails 330 (numbered in fig. 19) of the ground terminals 33 extend downwardly from the signal tails of the signal terminal assemblies 30 in a predetermined pattern in preparation for connection to the circuit board 2 shown in fig. 3.
Referring to fig. 14 and 15, all the first signal terminals 31 in the first sheet-type header 21 and all the second signal terminals 32 in the second sheet-type header 22 together constitute a signal terminal assembly 30 of the present invention. In detail, the signal terminal assembly 30 of the present invention includes a plurality of differential pairs 30a-30d coupled together, and in this embodiment, four differential pairs 30a-30d.
The detailed structure of the signal terminals will now be described by taking one of the differential pairs 30a as an example. As shown in fig. 14, the first middle portion 312 of the first signal terminal 31 and the second middle portion 322 of the second signal terminal 32 are located in the same vertical plane P, and the sides of the first middle portion 312 and the second middle portion 322 are coupled together, so as to reduce the loss generated by the capacitive effect of broadside coupling in the prior art. At least one of the first signal contact portion 311 and the second signal contact portion 321 is separated from the vertical plane P, so that the first signal contact portion 311 and the second signal contact portion 321 are arranged in parallel along a vertical direction (Z axis), and form a broadside-to-broadside pattern. At least one of the first signal tail 310 and the second signal tail 320 is out of the vertical plane P such that the first signal tail 310 and the second signal tail 320 are neither coplanar nor coaxial after being offset in both the lateral (X-axis) and vertical (Z-axis) directions. In this embodiment, the first middle portion 312 and the second middle portion 322 are both substantially L-shaped.
As shown in fig. 14, 15 and 17, in the present embodiment, the first signal contact 311 and the second signal contact 321 of each differential pair (e.g. 30 a) are separated from the vertical plane P in opposite directions. For example, the first signal contact portion 311 is offset toward one side of the vertical plane P, and the second signal contact portion 321 is offset toward the other side of the vertical plane P, and the position or the interval between the two is adjusted by a special structure, so that the first signal contact portion 311 and the second signal contact portion 321 form a broadside-to-broadside parallel arrangement structure.
As shown in fig. 14, 15 and 17, in the present embodiment, the first signal tail 310 and the second signal tail 320 of each differential pair (e.g. 30 a) are also separated from the vertical plane P in opposite directions. The first signal tail 310 is offset toward one side of the vertical plane P, and the second signal tail 320 is offset toward the other side of the vertical plane P, and the position or the interval between the two is adjusted by another special structure, so that the first signal tail 310 and the second signal tail 320 can be consistent with the arrangement pattern of the conductive vias on the circuit board as shown in fig. 3.
In more detail, as shown in fig. 14, 15, 16, in the present embodiment, the so-called special structure means a head position adjustment structure 34 and a tail position adjustment structure 35. That is, each signal terminal 31 (32) of each differential pair, such as differential pair 30a, further includes a head position adjustment structure 34 (34 ') and a tail position adjustment structure 35 (35'). For example, the head position adjusting structure 34 of the first signal terminal 31 is interposed between the first middle portion 312 and the first signal contact portion 311, and is used for changing the relative positions of the first signal contact portion 311 and the first middle portion 312, such that the first signal contact portion 311 is separated from the vertical plane P where the first middle portion 312 is located. The tail position adjusting structure 35 is interposed between the first middle portion 312 and the first signal tail portion 310, and is used for changing the relative positions of the first signal tail portion 310 and the first middle portion 312, so that the first signal tail portion 310 is separated from the vertical plane in which the first middle portion 312 is located. Similarly, the second signal terminals 32 also adjust the positions of the second signal contact portions 321 and the second signal tail portions 320 by means of the head position adjusting structures 34 'and the tail position adjusting structures 35'.
In the present embodiment, the signal contact portion 311 (321) of each signal terminal 31 (32) is adjusted in position by its head position adjusting structure 34 (34 '), and the signal tail portion 310 (320) is adjusted in position by its tail position adjusting structure 35 (35'). However, in other embodiments, the header position adjustment structure 34 (34 ') and/or the tail position adjustment structure 35 (35') may be disposed on only a portion of the signal terminals as needed, so that the two signal contacts 311 (321) of each differential pair are arranged in parallel in the longitudinal direction, and the two signal tails 310 (320) are arranged in a staggered manner in the transverse direction and the vertical direction.
In this embodiment, as shown in fig. 14 and 15, the head position adjusting structure 34 (34 ') or the tail position adjusting structure 35 (35') may be one or more extending sections formed by punching downward or upward or obliquely, one or more bending sections formed by bending leftward or rightward, or a combination section formed by combining the extending sections and the bending sections. In practice, the adjusting structures are mainly used for ensuring that the adjacent middle parts of the first signal terminals and the second signal terminals form side coupling, meanwhile, the signal contact parts of the adjusting structures can realize a butting function with the butting connector, and the signal tail parts of the adjusting structures are distributed in a certain mode so as to be electrically connected with the circuit board.
As shown in fig. 13, in the first sheet-type hub 21, the first frame 210 further has at least one first bump 213 disposed adjacent to the first edge 211 and at least one second bump 214 disposed adjacent to the second edge 212. In the present embodiment, the first frame 210 has a row of first bumps 213 disposed along the first edge 211 and a row of second bumps 214 disposed along the second edge 212, wherein at least a portion of the tail position adjustment structure 35 of each first signal terminal 31 is embedded in the first bumps 213 and at least a portion of the head position adjustment structure 34 is embedded in the second bumps 214. Similarly, as shown in fig. 12, the second frame 220 of the second wafer-type needle mount 22 is also provided with substantially identical bump structures. The number of the first bumps 213 and the second bumps 214 is determined according to the number of the first signal terminals 31.
The wafer-shaped header 21 (22) of the present invention can greatly reduce the thickness of the frame 210 (220) by providing the projections 213, 214 to sufficiently expose the intermediate portions 312 (322) of the signal terminals 31 (32) to the outside, while the projections 213, 214 can also provide a certain structural strength to fix the signal terminals 31 (32). As shown in fig. 9, 10 and 11, when the first sheet type pin holder 21 is combined with the second sheet type pin holder 22, the intermediate portions of the first signal terminal 31 and the second signal terminal 32 forming the differential pair can be side-coupled together with air (a) therebetween as a medium to further reduce the loss.
As shown in fig. 8, the sheet-type needle holders 21, 22, 23 are previously joined together by a connecting sheet 40 to form a complete needle holder module 20.
At the time of assembly, as shown in fig. 6, the front end of the hub module 20 is inserted into the cavity 110 along the fixing groove 116 of the insulation housing 10; the front ends of all terminals (such as signal contact portions and ground contact portions) extend into the corresponding terminal receiving grooves 122 and are exposed to the corresponding electronic card receiving grooves 120 to be electrically connected with an electronic card (not shown) to be inserted; the tail ends of all terminals (e.g., signal tail and ground tail) protrude from the open bottom 112 of the insulative housing 10 in preparation for electrical connection to the circuit board 2 shown in fig. 3. Finally, the hub module 20 is secured in the insulating housing 10 by a securing member 50 as shown in fig. 5 and 6.
In summary, in the high-density connector 1 of the present invention, the guiding bracket 13 is directly formed on the insulating housing 10 to simultaneously realize the guiding and locking functions of the plug connector; meanwhile, the high-density connector 1 also arranges the signal terminals 31 and 32 as differential pairs coupled on the sides so as to reduce the loss of signal transmission and improve the transmission performance of differential signals. The sheet-type pin holder of the present invention reduces the loss of signal transmission and improves the differential signal transmission performance by arranging the signal terminals 31, 32 in the two signal pins 21, 22 such that the intermediate portions 312, 322 are exposed and side coupling is achieved in the intermediate portions 312, 322 through an air medium. The signal terminal assembly 30 of the present invention improves the differential signal transmission performance by providing the first signal terminal 31 and the second signal terminal 32 as differential pairs with side coupling to reduce the loss of signal transmission.
Claims (6)
1. A high-density connector comprises an insulating shell and a needle seat module arranged in the insulating shell; the method is characterized in that:
the insulating shell is provided with a base, a butt joint part extending forwards from the front surface of the base, and a guide bracket formed on the top surface of the base and extending forwards to the position above the butt joint part; wherein the base is formed with a cavity; forming at least one electronic card receiving slot and two rows of terminal receiving slots distributed on the upper side and the lower side of the electronic card receiving slot on the front surface of the butting part, wherein the terminal receiving slots are communicated with the cavity; and
the needle seat module is accommodated in the cavity of the insulating shell and is assembled by a plurality of sheet-shaped needle seats arranged in a side-by-side structure; the sheet-type needle bases comprise a first sheet-type needle base, a second sheet-type needle base and a third sheet-type needle base which are adjacently arranged, wherein the first sheet-type needle base and the second sheet-type needle base are signal needle bases and are used for supporting a plurality of signal terminals; the third sheet-shaped needle seat is a grounding needle seat and is used for supporting at least one grounding terminal; the pin seat module is configured in a repeated mode of signal pin seat-grounding pin seat, wherein two adjacent signal pin seats form a pair, and signal terminals in the two adjacent signal pin seats form a plurality of differential pairs capable of being laterally coupled;
the first sheet-shaped needle seat comprises a first frame and a plurality of first signal terminals supported by the first frame, wherein each first signal terminal comprises a first signal tail part extending from a first edge of the first frame, a first signal contact part extending from a second edge of the first frame and a first middle part positioned between the first signal tail part and the first signal contact part; wherein the first intermediate portion is located on the side of the first frame facing the second sheet-type hub, exposed to air; and
the second sheet-type pin holder comprises a second frame and a plurality of second signal terminals supported by the second frame, wherein each second signal terminal comprises a second signal tail part extending from a first edge of the second frame, a second signal contact part extending from a second edge of the second frame and a second middle part positioned between the second signal tail part and the second signal contact part; wherein the second intermediate portion is located on the side of the second frame facing the first sheet-type hub and is exposed to air;
wherein the first intermediate portions of the first signal terminals and the second intermediate portions of the second signal terminals lie in the same vertical plane and each first intermediate portion is coupled together laterally with a corresponding second intermediate portion such that each first signal terminal forms a differential pair with a corresponding second signal terminal;
in each differential pair, at least one of the first signal contact and the second signal contact is separated from the vertical plane by a head position adjusting structure, so that the first signal contact and the second signal contact are arranged in parallel and form a broadside-to-broadside pattern; at least one of the first signal tail and the second signal tail is separated from the vertical plane by a tail position adjusting structure, so that the first signal tail and the second signal tail are staggered and arranged, and are not coplanar or coaxial;
the head position adjusting structure of the first signal terminal is arranged between the first middle part and the first signal contact part and is used for changing the relative position of the first signal contact part and the first middle part so that the first signal contact part is separated from a vertical plane where the first middle part is positioned; the tail position adjusting structure of the first signal terminal is arranged between the first middle part and the first signal tail and is used for changing the relative position of the first signal tail and the first middle part so that the first signal tail is separated from the vertical plane where the first middle part is positioned;
the second signal terminal has a head position adjusting structure between the second middle portion and the second signal contact portion, and a tail position adjusting structure between the second middle portion and the second signal tail portion.
2. The high-density connector of claim 1, wherein: the guide bracket is provided with a horizontal part provided with a locking structure and two vertical parts symmetrically arranged at two sides of the horizontal part, wherein the rear end of the horizontal part is connected with the top surface of the base part, the front end of the horizontal part is arranged above the butt joint part, and the horizontal part and the two vertical parts jointly define a guide space above the butt joint part.
3. The high-density connector of claim 2, wherein: the insulating housing further includes two legs symmetrically formed on both sides of the base and vertically extending to be flush with the bottom surface of the base, the two legs being respectively located under the two vertical portions, and a hole being formed in the bottom surface of each of the legs.
4. The high-density connector of claim 1, wherein: the third sheet-type needle seat comprises a third frame and at least one grounding terminal supported by the third frame, wherein the grounding terminal is provided with a row of grounding tail parts extending from the bottom edge of the third frame, a row of grounding contact parts extending from the side edge of the third frame and a grounding main body part positioned between the grounding tail parts and the grounding contact parts; wherein the grounding main body of the grounding terminal is positioned at one side of the second sheet-shaped needle seat so as to cover the first middle part and the second middle part positioned in the first sheet-shaped needle seat and the second sheet-shaped needle seat.
5. The high-density connector of claim 1, wherein: in each differential pair, the first signal contact and the second signal contact are separated from the vertical plane in opposite directions; the first signal tail and the second signal tail are also out of the vertical plane in opposite directions.
6. A sheet type needle seat comprises a first sheet type needle seat, a second sheet type needle seat and a third sheet type needle seat which are sequentially arranged side by side; the method is characterized in that:
the first sheet-type pin holder is a signal pin holder and comprises a first frame and a plurality of first signal terminals supported by the first frame, wherein each first signal terminal comprises a first signal tail part extending from a first edge of the first frame, a first signal contact part extending from a second edge of the first frame and a first middle part positioned between the first signal tail part and the first signal contact part; wherein the first intermediate portion is in a vertical plane and is exposed to air;
the second sheet-type pin holder is a signal pin holder and comprises a second frame and a plurality of second signal terminals supported by the second frame, wherein each second signal terminal comprises a second signal tail part extending from a first edge of the second frame, a second signal contact part extending from a second edge of the second frame and a second middle part positioned between the second signal tail part and the second signal contact part; wherein the second intermediate portion is also in the vertical plane and exposed to air, the second intermediate portion being capable of being coupled together with the corresponding first intermediate portion side edge such that each second signal terminal is capable of forming a differential pair with the corresponding first signal terminal; and
the third sheet-type needle seat is a grounding needle seat and comprises a third frame and at least one grounding terminal supported by the third frame, wherein the grounding terminal is provided with a row of grounding tail parts extending from the bottom edge of the third frame, a row of grounding contact parts extending from the side edge of the third frame and a grounding main body part positioned between the grounding tail parts and the grounding contact parts; wherein the grounding main body is positioned at one side of the second sheet-type needle seat so as to cover the first middle part and the second middle part positioned in the first sheet-type needle seat and the second sheet-type needle seat;
in each differential pair, at least one of the first signal contact and the second signal contact is separated from the vertical plane, so that the first signal contact and the second signal contact are arranged in parallel and form a broadside-to-broadside pattern; at least one of the first signal tail and the second signal tail is separated from the vertical plane, so that the first signal tail and the second signal tail are staggered and arranged, and are not coplanar or coaxial;
the first signal terminal comprises a head position adjusting structure and a tail position adjusting structure, wherein the head position adjusting structure is arranged between the first middle part and the first signal contact part and is used for changing the relative position of the first signal contact part and the first middle part so that the first signal contact part is separated from a vertical plane where the first middle part is positioned; the tail position adjusting structure is arranged between the first middle part and the first signal tail part and is used for changing the relative position of the first signal tail part and the first middle part so that the first signal tail part is separated from the vertical plane where the first middle part is positioned;
the second signal terminal includes a header position adjustment structure interposed between the second intermediate portion and the second signal contact portion and a tail position adjustment structure interposed between the second intermediate portion and the second signal tail.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001975.4A CN108183349B (en) | 2018-01-02 | 2018-01-02 | High-density connector and sheet-type needle seat |
| US16/181,398 US10446964B2 (en) | 2018-01-02 | 2018-11-06 | High density connector and wafer group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001975.4A CN108183349B (en) | 2018-01-02 | 2018-01-02 | High-density connector and sheet-type needle seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108183349A CN108183349A (en) | 2018-06-19 |
| CN108183349B true CN108183349B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810001975.4A Active CN108183349B (en) | 2018-01-02 | 2018-01-02 | High-density connector and sheet-type needle seat |
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| Country | Link |
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| CN (1) | CN108183349B (en) |
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| CN108183349A (en) | 2018-06-19 |
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