CN112467429A - Elastically-mounted plug connector - Google Patents
Elastically-mounted plug connector Download PDFInfo
- Publication number
- CN112467429A CN112467429A CN202011201209.6A CN202011201209A CN112467429A CN 112467429 A CN112467429 A CN 112467429A CN 202011201209 A CN202011201209 A CN 202011201209A CN 112467429 A CN112467429 A CN 112467429A
- Authority
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- China
- Prior art keywords
- contact
- plug connector
- hole
- insulation
- thimble
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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
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
- H01R13/17—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member on the pin
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model provides an elastic mounting's plug connector, includes a metal casing and a plurality of contact, metal casing's bottom surface installation an insulation fixed plate, the embedded insulation base in metal casing's the side, insulation fixed plate with insulation base is mutually perpendicular in space, and is a plurality of the head of contact corresponds to insert through interference fit in a row and locates in the mounting hole on the insulation base, it is a plurality of the afterbody correspondence in a row of contact is inserted and is located in the locating hole on the insulation fixed plate, just the tail end of contact stretches out the insulation fixed plate outside, the tail end of contact is connected with the round pad on the outside PCB board through elastic extrusion. The tail end of the contact element is connected with the round bonding pad on the external PCB in an elastic extrusion mode, so that the electrical conduction is realized, the problems of difficult welding and low success rate in a BGA welding mode are solved, and the ball grid array connector is convenient to install, can be repeatedly used, is convenient to replace and has high reliability.
Description
Technical Field
The invention belongs to the technical field of PCB (printed circuit board) connectors, and particularly relates to an elastically-mounted plug connector.
Background
Under the background of the technical requirements of continuous miniaturization and miniaturization of the size of the chassis and continuous increase of information storage, calculation and transmission speed, the size of the connectors interconnected among the PCBs (printed circuit boards) in the chassis is required to be smaller and smaller, the transmission speed is required to be faster and faster, and the signal pin density is required to be larger and larger.
The traditional connector and the PCB are often connected in a welding mode, such as through hole welding, surface mount welding, BGA welding and the like, wherein the reliability of the connector is higher, but the connector is rarely used in the design of a high-speed connector with higher transmission rate because the space size occupies larger space and has larger influence on the transmission rate of a product. The general product of table subsides welding mode is only two rows of stitches, unsatisfied customer to the demand of signal stitch quantity, therefore BGA welding mode is chooseed for use, has solved high density and transmission rate problem, but this kind of mode welding process requires highly, detects inconveniently moreover, in case the product welding has a little to become invalid, all is difficult to rework, and maintenance cost is higher.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an elastically-mounted plug connector, which has the following specific technical scheme:
the utility model provides an elastic mounting's plug connector, this plug connector includes a metal casing and a plurality of contact, a metal casing's bottom surface installation insulating fixed plate, the embedded insulating base in metal casing's the side, insulating fixed plate with insulating base is mutually perpendicular in space, and is a plurality of the head of contact is inserted through interference fit in row correspondence and is located in the mounting hole on the insulating base, it is a plurality of the afterbody of contact is inserted in row correspondence and is located in the locating hole on the insulating fixed plate, just the tail end of contact stretches out the insulating fixed plate outside, the tail end of contact is connected with the round pad on the outside PCB board through elastic extrusion's mode.
Further, metal casing includes two mount pads that relative interval set up, two heating panel fixed connection through a porous structure between the mount pad, just the heating panel is located mount pad top surface department, two side between the mount pad is provided with and is used for inlaying the establishment insulating base's installation cavity, every the mount pad bottom surface inside edge symmetry respectively is provided with perpendicularly and is used for fixing insulating fixed plate's erection column, every mount pad bottom surface middle part symmetry concave screw hole that is used for locking outside PCB board respectively.
Further, the contact includes the twist needle of head butt-joint area, the needle body of middle part transition area and the elasticity coarse button and the thimble of afterbody chain joint area, the twist needle with the needle body adopts the press-fit connection, coarse button and thimble are arranged in the hole of needle body tail end, the hole is realized through the mode of its oral area throat the thimble with fixing between coarse button and the needle body, the longitudinal section of thimble is T shape structure, the horizontal part of thimble is arranged in the hole, the vertical portion of thimble stretches out the hole outside.
Furthermore, a plurality of positioning columns are vertically arranged on the bottom surface of the mounting seat.
Further, a fitting formed by assembling the contact piece and the insulating base is fixedly bonded with the metal shell through epoxy glue.
Furthermore, the metal shell is provided with an anti-skid groove for integrally reinforcing the contact element and the insulating base.
Furthermore, two ends of the insulating fixing plate are respectively provided with a fixing hole, and each fixing hole is fixedly connected with the corresponding mounting column in a rivet turning mode.
Furthermore, the pin bodies of the contact elements are kept flush with each other, the bending radius of the pin bodies of the contact elements is reduced in an equal proportion, and the distances L between pins of the pin bodies used for transmitting high-speed signals are kept equal.
Furthermore, the PCB is fixed on the bottom surface of the mounting seat through locking screws matched with the threaded holes.
The invention has the beneficial effects that:
the invention replaces the existing high-density BGA packaged connector, the tail end of the contact element in the invention is connected with the external round bonding pad on the PCB board in an elastic extrusion mode, the electrical conduction is realized, the problems of difficult welding and low success rate existing in the BGA welding mode are solved, and the invention has the advantages of convenient installation, repeated use, convenient replacement and high reliability.
Drawings
Fig. 1 is a perspective view of a plug connector of the present invention;
fig. 2 is a perspective view showing a metal shell of the plug connector of the present invention;
FIG. 3 is a sectional view showing an exploded structure of a contact and a base of the plug connector of the present invention;
fig. 4(a) is a sectional view showing an assembled structure of a contact and a base of the plug connector of the present invention;
fig. 4(b) is a schematic assembled perspective view of the contact and the base of the plug connector of the present invention;
fig. 5 is an exploded sectional view showing the metal shell, the contact and the fixing plate of the plug connector of the present invention;
fig. 6(a) is a sectional view showing the assembled structure of the plug connector of the present invention;
fig. 6(b) is a partial view showing the mounting of the fixing plate of the plug connector of the present invention;
fig. 7 is a schematic view showing a structure of the plug connector of the present invention mounted with a PCB board.
Shown in the figure: 1. a plug connector; 2. a metal housing; 21. a mounting cavity; 211. an anti-slip groove; 22. a heat dissipation plate; 23. a mounting seat; 231. a positioning column; 232. mounting a column; 233. a threaded hole; 3. a contact member; 31. a twist needle; 32. a needle body; 321. an inner bore; 33. a fuzz button; 34. a thimble; 4. an insulating base; 41. mounting holes; 5. an insulating fixing plate; 51. positioning holes; 52. a fixing hole; 6. epoxy glue; 7. locking the screw; 8. a PCB board; 81. and a circular pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 7, an elastically mounted plug connector 1 includes a metal shell 2 and a plurality of contacts 3, an insulating fixing plate 5 is mounted on a bottom surface of the metal shell 2, an insulating base 4 is embedded in a side surface of the metal shell, the insulating fixing plate 5 and the insulating base 4 are perpendicular to each other in space, heads of the plurality of contacts 3 are inserted into mounting holes 41 of the insulating base 4 in rows by interference fit, tails of the plurality of contacts 3 are inserted into positioning holes 51 of the insulating fixing plate 5 in rows, and tail ends of the contacts 3 extend out of the insulating fixing plate 5, and the tail ends of the contacts 3 are connected with circular pads 81 on an external PCB 8 by elastic pressing.
Through the technical scheme, the tail end of the contact element 3 is connected with the round bonding pad 81 on the external PCB 8 in an elastic extrusion mode, so that the electrical conduction is realized, the problems of difficult welding and low success rate existing in a BGA welding mode are solved, and the plug connector 1 is convenient to install, can be repeatedly used, is convenient to replace and has high reliability; the mutual position relation of the contact elements 3 in the rows is determined by the insulating base 4, the impedance among the contact elements 3 is ensured by calculation and simulation, and the contact elements 3 exposed outside the insulating base 4 are shielded by air.
As shown in fig. 2 and 5, the metal shell 2 includes two installation bases 23 that relative interval set up, two heating panel 22 fixed connection through a porous structure between the installation base 23, just the heating panel 22 is located installation base 23 top surface department, two side between the installation base 23 is provided with and is used for inlaying the installation cavity 21 of establishing insulating base 4, every the inboard edge of installation base 23 bottom surface is symmetrical respectively perpendicularly to be provided with and is used for fixing the erection column 232 of insulating fixed plate 5, every installation base 23 bottom surface middle part symmetry concave screw hole 233 that is used for locking outside PCB 8 respectively.
By the technical scheme, the heat dissipation plate 22 with the porous structure effectively increases the heat dissipation in the use process of the plug connector 1; the bottom surface of the mounting seat 23 of the metal shell 2 is the mounting standard when the plug connector 1 is mounted; the metal shell 2 integrally reinforces and electromagnetically shields the plug connector 1; the position precision of all the contact pieces 3 is ensured by matching the mounting cavity 21 with the positioning hole 51 of the insulating fixing plate 5.
As shown in fig. 3, the contact 3 includes a twist needle 31 in a head butt-joint area, a needle body 32 in a middle transition area, and an elastic fuzz button 33 and a thimble 34 in a tail link area, the twist needle 31 is press-fit connected with the needle body 32, the fuzz button 33 and the thimble 34 are disposed in an inner hole 321 at the tail end of the needle body 32, the inner hole 321 realizes fixation between the thimble 34 and the fuzz button 33 and the needle body 32 by a mouth necking mode, a longitudinal section of the thimble 34 is a T-shaped structure, a horizontal part of the thimble 34 is disposed in the inner hole 321, and a vertical part of the thimble 34 extends out of the outer side of the inner hole 321.
By adopting the technical scheme, the ultra-micro twist needle 31 and the needle body 32 are in press fit connection by adopting automatic equipment, so that reliable contact is realized; the ultra-micro twist needle 31 can be used for being reliably contacted with a butt joint end jack, a micro elastic button 33 and an ejector pin 34 are assembled in an inner hole 321 at the tail end of a needle body 32, in the using process, the ejector pin 34 extrudes the button 33 to compress the button, then the compressed button 33 reversely generates extrusion force on the ejector pin 34, the ejector pin 34 is connected with a circular pad 81 on a PCB 8, a plurality of contact elements 3 are arranged according to a certain size, the characteristic impedance is controlled, and meanwhile, the high density of the plug connector 1 is ensured.
As shown in fig. 2, a plurality of positioning posts 231 are vertically disposed on the bottom surface of the mounting seat 23.
Through the technical scheme, the positioning column 231 is used for positioning the contact 3 and the insulating base 4 when being assembled.
As shown in fig. 6(a), the assembly formed by the assembly of the contact 3 and the insulating base 4 is fixedly bonded to the metal housing 2 by epoxy glue 6.
Through the technical scheme, the contact 3 and the insulating base 4 are integrally connected with the metal shell 2.
As shown in fig. 6(a), the metal shell 2 is provided with a slip-preventing groove 211 for integrally reinforcing the contact 3 and the insulating base 4.
Through the technical scheme, the anti-slip grooves 211 are designed to play an integral role in reinforcing the contact element 3 and the insulating base 4.
As shown in fig. 6(b), two ends of the insulating fixing plate 5 are respectively provided with a fixing hole 52, and each fixing hole 52 is fixedly connected with the corresponding mounting post 232 in a rivet-turning manner.
Through the technical scheme, the insulating fixing plate 5 and the metal shell 2 are integrally connected, and the accurate positioning of multiple rows of contact elements is realized.
As shown in fig. 4(a) and 4(b), the pins 32 of each contact 3 are flush with each other, the bending radius of the pins 32 of the contacts 3 is reduced in an equal proportion, and the pitch L between the pins of the pins 32 for transmitting high-speed signals is kept equal.
Through the technical scheme, the high transmission rate of the plug connector 1 is ensured.
As shown in fig. 7, the PCB board 8 is fixed to the bottom surface of the mounting seat 23 by a locking screw 7 engaged with the screw hole 233.
Through the technical scheme, the plug connector 1 and the PCB 8 are convenient to fix, so that the ejector pin 34 and the circular pad 81 on the PCB 8 have compressive force all the time, and reliable electrical connection is formed.
The working principle of the invention is as follows:
when the invention is used, firstly, the tail linking areas of the contact elements 3 are correspondingly inserted into the positioning holes 51 of the insulating fixing plate 5, then the head butt-joint areas of the assembled contact elements 3 are extruded into the corresponding mounting holes 41 on the insulating base 4 through a press-fit tool to realize fixed positioning to form a combined element, and then the combined element is integrally assembled into the mounting cavity 21 of the metal shell 2 and is fixed in the metal shell 2 in a bonding mode through the epoxy adhesive 6 to form integral connection.
The ejector pin 34 can move towards the inner hole 321 under the action of external force to compress the wool button 33, meanwhile, under the reaction of the wool button 33, the ejector pin 34 outwards has certain pressure to realize interaction, after the external force disappears, the ejector pin 34 can recover to the initial position under the action of the elastic force of the wool button 33, the ejector pin 34 initially realizes certain pre-pressure on the wool button 33, and the ejector pin 34 is connected with the circular pad 81 on the PCB 8; in practical use, the locking screw 7 is not loosened, and the thimble 34 and the circular pad 81 always have a compressive force to form a reliable electrical connection.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. An elastically mounted plug connector, characterized in that: this plug connector (1) includes a metal casing (2) and a plurality of contact (3), an insulation fixing plate (5) of bottom surface installation of metal casing (2), embedded an insulation base (4) in metal casing's the side, insulation fixing plate (5) with insulation base (4) are mutually perpendicular in space, and are a plurality of the head of contact (3) is through interference fit in a row correspondence insert locate in mounting hole (41) on insulation base (4), it is a plurality of the afterbody of contact (3) is in a row correspondence insert locate in locating hole (51) on insulation fixing plate (5), just the tail end of contact (3) stretches out insulation fixing plate (5) the outside, the tail end of contact (3) is connected through the round pad (81) on elastic extrusion's mode and outside PCB board (8).
2. A spring-loaded plug connector according to claim 1, wherein: metal casing (2) are including two mount pads (23) that relative interval set up, two heating panel (22) fixed connection through a porous structure between mount pad (23), just heating panel (22) are located mount pad (23) top surface department, two side between mount pad (23) is provided with and is used for inlaying and establishes installation cavity (21) of insulating base (4), every mount pad (23) bottom surface inboard edge symmetry respectively is provided with perpendicularly and is used for fixing erection column (232) of insulating fixed plate (5), every mount pad (23) bottom surface middle part symmetry concave screw hole (233) that are used for locking outside PCB board (8) respectively.
3. A spring-loaded plug connector according to claim 2, wherein: contact piece (3) include elasticity button (33) and thimble (34) that the cotton-padded mattress needle (31), the needle body (32) of middle part transition district and the afterbody link district of head butt joint district, cotton-padded mattress needle (31) with needle body (32) adopt the press-fit to connect, button (33) and thimble (34) are arranged in hole (321) of needle body (32) tail end, hole (321) are realized through the mode of its oral area throat thimble (34) with fix between button (33) and the needle body (32), the longitudinal section of thimble (34) is T shape structure, the horizontal part of thimble (34) is arranged in hole (321), the vertical portion of thimble (34) stretches out the hole (321) outside.
4. A spring-loaded plug connector according to claim 3, wherein: the bottom surface of the mounting seat (23) is vertically provided with a plurality of positioning columns (231).
5. A spring-loaded plug connector according to claim 1, wherein: and a fitting member formed by assembling the contact element (3) and the insulating base (4) is fixedly bonded with the metal shell (2) through epoxy glue (6).
6. A spring-loaded plug connector according to claim 5, wherein: and the metal shell (2) is provided with an anti-skid groove (211) for integrally reinforcing the contact element (3) and the insulating base (4).
7. A spring-loaded plug connector according to claim 2, wherein: and two ends of the insulating fixing plate (5) are respectively provided with a fixing hole (52), and each fixing hole (52) is fixedly connected with the corresponding mounting column (232) in a rivet turning mode.
8. A spring-loaded plug connector according to claim 3, wherein: the pin bodies (32) of the contact pieces (3) are kept flush with each other, the bending radius of the pin bodies (32) of the contact pieces (3) is reduced in an equal proportion, and the distances L between pins of the pin bodies (32) used for transmitting high-speed signals are kept equal.
9. A spring-loaded plug connector according to claim 2, wherein: the PCB (8) is fixed on the bottom surface of the mounting seat (23) through a locking screw (7) matched with the threaded hole (233).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011201209.6A CN112467429B (en) | 2020-11-02 | 2020-11-02 | Elastically-mounted plug connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011201209.6A CN112467429B (en) | 2020-11-02 | 2020-11-02 | Elastically-mounted plug connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112467429A true CN112467429A (en) | 2021-03-09 |
| CN112467429B CN112467429B (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011201209.6A Active CN112467429B (en) | 2020-11-02 | 2020-11-02 | Elastically-mounted plug connector |
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| Country | Link |
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| CN (1) | CN112467429B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122782A (en) * | 2021-10-22 | 2022-03-01 | 中航光电科技股份有限公司 | Switching high-speed connector |
| CN117712746A (en) * | 2024-02-06 | 2024-03-15 | 陕西四菱电子科技股份有限公司 | High-precision matching connector between low boards |
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| CN209487761U (en) * | 2019-02-28 | 2019-10-11 | 弘邺科技有限公司 | Electric power connector construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114122782A (en) * | 2021-10-22 | 2022-03-01 | 中航光电科技股份有限公司 | Switching high-speed connector |
| CN117712746A (en) * | 2024-02-06 | 2024-03-15 | 陕西四菱电子科技股份有限公司 | High-precision matching connector between low boards |
| CN117712746B (en) * | 2024-02-06 | 2024-04-19 | 陕西四菱电子科技股份有限公司 | High-precision matching connector between low boards |
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| Publication number | Publication date |
|---|---|
| CN112467429B (en) | 2022-08-05 |
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