CN112164910A - Round rod pin type contact element pre-assembled with welding structure and connector thereof - Google Patents
Round rod pin type contact element pre-assembled with welding structure and connector thereof Download PDFInfo
- Publication number
- CN112164910A CN112164910A CN202010971602.7A CN202010971602A CN112164910A CN 112164910 A CN112164910 A CN 112164910A CN 202010971602 A CN202010971602 A CN 202010971602A CN 112164910 A CN112164910 A CN 112164910A
- Authority
- CN
- China
- Prior art keywords
- metal block
- round rod
- round bar
- state
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0256—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections for soldering or welding connectors to a printed circuit board
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The round rod pin type contact element with a welding structure preassembled comprises a plate body and a round rod pin, wherein the round rod pin is arranged at the end part of the plate body; a metal block is sleeved outside the round rod pin; the metal block has two states: the first state is a solid state, the metal block in the solid state is sleeved on the pin of the round rod in the unassembled state, and the inner end of the metal block is abutted against the plate body; the second state is a molten state, and the metal block in the molten state is welded on the round rod pin in the assembling state; the metal block in a molten state is used for fixing the round bar pin on the PCB substrate; the metal block is preassembled on the contact element, and the PCB pad can be used for heating soldering from the outside of the PCB substrate during insertion, so that soldering can be rapidly completed at each position inside and outside the connector, the operation is simple and convenient, and the modification cost is low.
Description
Technical Field
The invention belongs to the technical field of connectors, and particularly relates to a round rod pin type contact element with a welding structure in a preassembling manner and a connector thereof.
Background
The round bar pin is a common plug terminal in the connector, and when the round bar pin is used, the round bar pin needs to be welded in a hole or on the surface of a PCB (printed circuit board); however, when the number of pins on the connector is large and the pins are arranged in an array, the pins inside the connector are difficult to solder, and the solder lacks a positioning structure, so that the solder moves around to affect the soldering precision, and finally, the soldering strength is not high and the signal transmission performance is not good.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a round rod pin type contact element preassembled with a welding structure, and the specific technical scheme is as follows:
the round rod pin type contact element is preassembled with a welding structure and comprises a plate body and a round rod pin, wherein the round rod pin is arranged at the end part of the plate body; a metal block is sleeved outside the round rod pin;
the metal block has two states:
the first state is a solid state, the metal block in the solid state is sleeved on the pin of the round rod in the unassembled state, and the inner end of the metal block is abutted against the plate body;
the second state is a molten state, and the metal block in the molten state is welded on the round rod pin in the assembling state; the metal block in a molten state is used for fixing the round rod pin on the PCB substrate.
Furthermore, the inside of the solid metal block is provided with a jack with two open ends, and the round rod pin is arranged in the jack; the large-area planes on the two sides of the round rod pin are main matching surfaces; and the main matching surface of the round rod pin is in interference fit with the inner wall of the jack.
Furthermore, the round rod pins extend out of the insertion holes.
Furthermore, the round rod pin is internally accommodated in the jack, and the length of the round rod pin is smaller than or equal to the depth of the jack.
Furthermore, the inner wall of the jack is provided with a protrusion, and the protrusion is clamped on the outer wall of the round rod pin in an interference manner.
Further, the bulges are bulges or ribs.
Furthermore, the outer matching surface of the metal block is a spherical surface or a plane.
Furthermore, the inner matching surface of the metal block is a plane, and the inner matching surface is matched with the outer end plane stop of the plate body.
A signal connector includes an insulating base and the above-described contact.
The invention has the beneficial effects that:
1. the metal block is preassembled on the contact element, the metal block can be arranged in the assembly area during insertion, the metal block can be heated from the outside of the PCB substrate by utilizing the PCB bonding pad, the molten metal block can automatically fill the assembly gap, so that the welding can be rapidly completed at each position inside and outside the connector, the operation is simple and convenient, and the modification cost is low;
2. because the metal block makes the interference fit on the pin, consequently, in whole welding process, the metal block can not take place the displacement to the welding precision of assurance.
Drawings
FIG. 1 is a schematic view showing a structure of an embodiment of a round bar pin-type contact of the present invention;
FIG. 2 is a schematic structural view of a second embodiment of a round bar pin type contact of the present invention;
FIG. 3 shows a schematic cross-sectional front view of a metal block of the present invention;
FIG. 4 is a schematic structural view of a top cross-sectional shape of a metal block of the present invention;
FIG. 5 is a schematic view showing a mounting state of the round bar pin-type contact of FIG. 1;
FIG. 6 is a schematic view showing a welded state structure of the round bar pin type contact of FIG. 1;
FIG. 7 is a schematic view showing a mounting state of the round bar pin-type contact of FIG. 2;
FIG. 8 is a schematic view showing a welded state structure of the round bar pin type contact of FIG. 2;
shown in the figure: 1. an insulating base; 2. a contact member; 21. a plate body; 22. a round bar pin; 3. a metal block; 31. an outer mating surface; 32. a jack; 33. an inner mating surface; 4. a PCB substrate; 41. an assembly hole; 5. a PCB 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.
The cross section of the overall outer contour of the metal block 3 can be any one of circular, oval, waist drum-shaped, square, rectangular and teardrop-shaped as an example, but is not limited to the above, the metal block can be processed into various required shapes according to actual production and process requirements, and the structure is flexible and changeable; the top cross section of the insertion hole 32 may be any one of circular, oval, waist drum, square, rectangular, and teardrop-shaped, but is not limited thereto; the jack can be processed into various shapes according to actual production requirements, and only an interference penetrating area is reserved;
example one
As shown in fig. 1, the round bar pin 22 extends out of the insertion hole 32; the overhanging round bar pin can realize the round bar pin to be inserted into the PCB board with the hole.
The contact element 2 comprises a plate body 21 and a round rod pin 22, wherein the round rod pin 22 is arranged at the end part of the plate body 21; the metal block 3 is sleeved outside the round rod pin 22; the metal block is exemplified by a tin block;
the metal block 3 has two states:
the first state is a solid state, the metal block 3 in the solid state is sleeved on the round rod pin 22 in an unassembled state, and the inner end of the metal block 3 is abutted against the plate body 21;
the second state is a molten state, and the metal block 3 in the molten state is welded on the round rod pin 22 in the assembling state; the metal block 3 in a molten state is used for fixing the round bar pin 22 on the PCB substrate;
as shown in fig. 3, in the solid state, the metal block 3 is provided with an insertion hole 32 with two open ends, and the round bar pin 22 is disposed in the insertion hole 32; the large-area planes on the two sides of the round rod pin 22 are main matching surfaces 221; the main mating surface 221 of the round bar pin 22 is interference-fitted with the inner wall of the receptacle 32.
The outer matching surface 31 of the metal block 3 is a spherical surface or a plane; the outer matching surface is designed to be a spherical surface, so that the metal block can be conveniently abutted and limited with a PCB pad, and the contact element can be conveniently and accurately inserted to a required position; the outer end face of the planar structure is convenient to assemble;
the inner end surface of the metal block 3 is an inner matching surface 33, and the inner matching surface 33 is matched with the outer end plane of the plate body 21 in a stop way; the inner matching surface and the stop of the end part of the plate body can facilitate assembly personnel to determine the insertion position of the metal block, and simultaneously can avoid the metal block from loosening and radial displacement;
the inner wall of the jack 32 is provided with a bulge, and the bulge is clamped on the outer wall of the round rod pin 22 in an interference manner; the bulges are bulges or ribs; the protruding structure can reduce the contact surface and facilitate the insertion while satisfying the interference fit.
In the implementation of the above embodiment, as shown in fig. 1, the metal block 3 in a solid state is preassembled on the round bar pin 22 of the contact, the metal block 3 is inserted into the tail end of the round bar pin 22, the inner wall of the insertion hole 32 is in interference fit with the main fitting surface 221 of the round bar pin 22, the inner fitting surface 33 of the inner end of the metal block 3 is abutted against the end surface plane of the plate body 21, and the corner connection regions between the plate body 21 and the round bar pin 22 are all placed in the insertion hole 32;
as shown in fig. 5, when the connector is inserted, the connector is inserted onto the PCB substrate 4, the round bar pins 22 are inserted into the assembly holes 41 of the PCB substrate 4, and the bottom outer mating surfaces 31 of the metal blocks 3 abut against the PCB pads 5 in the assembly holes 41;
as shown in fig. 6, the PCB pad 5 is energized to heat and melt the metal block 3, and the metal block in the molten state fills the gap between the round bar pin 22 and the mounting hole 41, so that the round bar pin 22 and the PCB substrate 4 are integrally soldered.
Example two
As shown in fig. 2, the round bar pin 22 is accommodated in the insertion hole 32; for assembly with a PCB substrate 4 without assembly holes; the length of the round bar pin 22 is less than or equal to the depth of the receptacle 32.
The contact element 2 comprises a plate body 21 and a round rod pin 22, wherein the round rod pin 22 is arranged at the end part of the plate body 21; the metal block 3 is sleeved outside the round rod pin 22; the metal block is exemplified by a tin block;
the metal block 3 has two states:
the first state is a solid state, the metal block 3 in the solid state is sleeved on the round rod pin 22 in an unassembled state, and the inner end of the metal block 3 is abutted against the plate body 21;
the second state is a molten state, and the metal block 3 in the molten state is welded on the round rod pin 22 in the assembling state; the metal block 3 in a molten state is used for fixing the round bar pin 22 on the PCB substrate;
as shown in fig. 3, in the solid state, the metal block 3 is provided with an insertion hole 32 with two open ends, and the round bar pin 22 is disposed in the insertion hole 32; the large-area planes on the two sides of the round rod pin 22 are main matching surfaces 221; the main mating surface 221 of the round bar pin 22 is interference-fitted with the inner wall of the receptacle 32.
The outer matching surface 31 of the metal block 3 is a spherical surface or a plane; the outer matching surface is designed to be a spherical surface, so that the metal block can be conveniently abutted and limited with a PCB pad, and the contact element can be conveniently and accurately inserted to a required position; the outer end face of the planar structure is convenient to assemble;
the inner end surface of the metal block 3 is an inner matching surface 33, and the inner matching surface 33 is matched with the outer end plane of the plate body 21 in a stop way; the inner matching surface and the stop of the end part of the plate body can facilitate assembly personnel to determine the insertion position of the metal block, and simultaneously can avoid the metal block from loosening and radial displacement;
the inner wall of the jack 32 is provided with a bulge, and the bulge is clamped on the outer wall of the round rod pin 22 in an interference manner; the bulges are bulges or ribs; the protruding structure can reduce the contact surface and facilitate the insertion while satisfying the interference fit.
In the implementation of the above embodiment, as shown in fig. 2, the metal block 3 in a solid state is preassembled on the round bar pin 22 of the contact, the metal block 3 is inserted into the tail end of the round bar pin 22, the inner wall of the insertion hole 32 is in interference fit with the main fitting surface 221 of the round bar pin 22, the inner fitting surface 33 of the inner end of the metal block 3 is abutted against the end surface plane of the plate body 21, and the corner connection regions between the plate body 21 and the round bar pin 22 are all placed in the insertion hole 32;
as shown in fig. 7, when the connector is inserted, the connector is inserted onto the PCB substrate 4, the round bar pins 22 abut against the surface of the PCB substrate 4, and the bottom outer fitting surface 31 of the metal block 3 abuts against the PCB pad 5;
as shown in fig. 8, the PCB pad 5 is energized, so that the metal block 3 is heated and melted, and the metal block in the melted state can solder the pin of the circular rod on the PCB substrate.
A signal connector comprises an insulating base 1, wherein a contact is inserted into the insulating base 1, and the contact is any one of the two embodiments.
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. The pre-installation has welded structure's round bar pin type contact, its characterized in that: the contact piece (2) comprises a plate body (21) and a round bar pin (22), wherein the round bar pin (22) is arranged at the end part of the plate body (21); the metal block (3) is sleeved outside the round rod pin (22);
the metal block (3) has two states:
the first state is a solid state, the metal block (3) in the solid state is sleeved on the round rod pin (22) in the unassembled state, and the inner end of the metal block (3) is abutted against the plate body (21);
the second state is a molten state, and the metal block (3) in the molten state is welded on the round rod pin (22) in the assembly state; the metal block (3) in a molten state is used for fixing the round bar pin (22) on the PCB substrate.
2. The round bar pin type contact of claim 1 preassembled with a solder structure, wherein: the metal block (3) in a solid state is internally provided with jacks (32) with openings at two ends, and the round rod pins (22) are arranged in the jacks (32); the round rod pin (22) is in interference fit with the inner wall of the jack (32).
3. The round bar pin type contact of claim 2 preassembled with a solder structure, wherein: the round rod pins (22) extend out of the insertion holes (32).
4. The round bar pin type contact of claim 2 preassembled with a solder structure, wherein: the round rod pin (22) is internally accommodated in the insertion hole (32), and the length of the round rod pin (22) is smaller than or equal to the depth of the insertion hole (32).
5. The round bar pin type contact of claim 4 preassembled with a solder structure, wherein: the inner wall of the jack (32) is provided with a protrusion, and the protrusion is clamped on the outer wall of the round rod pin (22) in an interference manner.
6. The round bar pin type contact of claim 5 preassembled with a solder structure, wherein: the bulges are bulges or ribs.
7. The round bar pin type contact of claim 1 preassembled with a solder structure, wherein: the outer matching surface of the metal block (3) is a spherical surface or a plane.
8. The round bar pin type contact of claim 8 preassembled with a solder structure, wherein: the inner matching surface of the metal block (3) is a plane, and the inner matching surface is matched with the outer end plane stop of the plate body (21).
9. A signal connector comprising an insulating base (1), characterized in that: the insulating base (1) is internally provided with the contact of claim 1 in an array mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010971602.7A CN112164910A (en) | 2020-09-16 | 2020-09-16 | Round rod pin type contact element pre-assembled with welding structure and connector thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010971602.7A CN112164910A (en) | 2020-09-16 | 2020-09-16 | Round rod pin type contact element pre-assembled with welding structure and connector thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112164910A true CN112164910A (en) | 2021-01-01 |
Family
ID=73858974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010971602.7A Pending CN112164910A (en) | 2020-09-16 | 2020-09-16 | Round rod pin type contact element pre-assembled with welding structure and connector thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112164910A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202004180U (en) * | 2010-11-26 | 2011-10-05 | 深圳盛凌电子股份有限公司 | Fixed terminal and connection structure of lead and printed circuit board (PCB) |
| CN103682932A (en) * | 2012-09-14 | 2014-03-26 | 庆良电子股份有限公司 | Sleeving method and sleeving structure of welding part and welding terminal |
| CN103782452A (en) * | 2011-08-29 | 2014-05-07 | 矢崎总业株式会社 | Press-fit terminal for board connector and fixing structure of press-fit terminal to connector housing |
-
2020
- 2020-09-16 CN CN202010971602.7A patent/CN112164910A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202004180U (en) * | 2010-11-26 | 2011-10-05 | 深圳盛凌电子股份有限公司 | Fixed terminal and connection structure of lead and printed circuit board (PCB) |
| CN103782452A (en) * | 2011-08-29 | 2014-05-07 | 矢崎总业株式会社 | Press-fit terminal for board connector and fixing structure of press-fit terminal to connector housing |
| CN103682932A (en) * | 2012-09-14 | 2014-03-26 | 庆良电子股份有限公司 | Sleeving method and sleeving structure of welding part and welding terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5984698A (en) | Connector assembly having signal and ground terminals | |
| JP3212938B2 (en) | Connector mounting board and method of assembling the same | |
| EP1142067B1 (en) | Electrical connectors | |
| JP4049230B2 (en) | Microwave device | |
| CN112164910A (en) | Round rod pin type contact element pre-assembled with welding structure and connector thereof | |
| US20090130916A1 (en) | Connector and method for inspecting connection portions of the same | |
| CN112164911A (en) | Rectangular pin type contact element pre-assembled with welding structure and connector thereof | |
| US7794287B1 (en) | Electrical connector configured by wafer having coupling foil and method for making the same | |
| JPH0414873Y2 (en) | ||
| CN209344468U (en) | A kind of connector of band SMT, THR welding | |
| JPH10321290A (en) | Connector to be mounted on surface | |
| CN112164912A (en) | Barb type signal contact element pre-assembled with welding structure and connector thereof | |
| US6353191B1 (en) | Column grid array connector | |
| CN211507947U (en) | BTB connector of blanking terminal type | |
| CN221767045U (en) | Solid fish-eye terminal for electric connection of circuit board | |
| CN201097407Y (en) | Electric connector assembly | |
| JP2000067963A (en) | Surface mount connector for circuit board | |
| JP2531600Y2 (en) | Board connection connector | |
| TWM444621U (en) | Electrical connector | |
| JPH0415593B2 (en) | ||
| JP2017157718A (en) | Component for electric circuit | |
| CN111244652A (en) | Paster connector and driving and controlling integrated equipment | |
| CN112164913A (en) | Fisheye type signal contact element pre-assembled with welding structure and connector thereof | |
| CN209913085U (en) | Coupling socket, power semiconductor module and circuit device having the same | |
| CN213186706U (en) | Hearing aid circuit board embedding and fixing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210101 |
|
| RJ01 | Rejection of invention patent application after publication |