CN102569965A - Bent foot type surface-mount circulator/isolator and insertion needle welding method thereof - Google Patents
Bent foot type surface-mount circulator/isolator and insertion needle welding method thereof Download PDFInfo
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- CN102569965A CN102569965A CN2011104077140A CN201110407714A CN102569965A CN 102569965 A CN102569965 A CN 102569965A CN 2011104077140 A CN2011104077140 A CN 2011104077140A CN 201110407714 A CN201110407714 A CN 201110407714A CN 102569965 A CN102569965 A CN 102569965A
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- contact pin
- pcb board
- device body
- isolator
- wiring
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Abstract
The invention discloses a bent foot type surface-mount circulator/isolator and an insertion needle welding method thereof, and relates to the technical field of microwave devices. The technical problem of poor welding condition of the conventional device is solved. The bent foot type surface-mount circulator/isolator comprises a device body and a printed circuit board (PCB), wherein the device body is provided with three ports connected with a microwave circuit; each port is connected with a wiring insertion needle; and the microwave circuit and three insertion needle welding points connected with the microwave circuit are printed on the PCB. The bent foot type surface-mount circulator/isolator is characterized in that: one end of each wiring insertion needle, which is connected with the device body, is a first connection end, and the other end of each wiring insertion needle is a second connection end; the second connection ends of the wiring insertion needles face the outer side of the device body, and are bent to form an L shape; the bottom surfaces of the bent parts of the second connection ends of the wiring insertion needles and insertion needle welding points on the PCB are respectively attached and welded with each other; and the insertion needle welding points are encapsulated by epoxy resin. According to the device and the welding method thereof, high connection between the wiring insertion needles and the PCB can be guaranteed.
Description
Technical field
The present invention relates to the microwave device technology, particularly relate to the technology of a kind of clubfoot formula Surface Mount circulator/isolator and contact pin welding method thereof.
Background technology
Use various instrument and meter for automations, control system and actuator in the industrial processes, each instrument and transferring signals between devices often have interference, cause system's instability even misoperation.For the normal transmission that guarantees process signal with avoid mutual interference mutually, the method for convectional signals isolation is a disconnection process loop.Circulator is three port devices, and three ports are respectively input port, output port and isolated port, and the isolated port energy almost can not pass through.Electromagnetic wave is arranged along a certain belt direction, the characteristic of one-way transmission higher frequency signal energy is used between the output and load of high frequency power amplifier more, plays independent separately, the effect of " isolation " mutually, so circulator is isolator again.Effects such as that Surface Mount circulator/isolator plays in microwave circuit is belt, isolation, amplitude modulation are mainly used in military radar system, the communications field.
The profile stereogram of prior art Surface Mount circulator/isolator device body and pcb board (printed circuit board (PCB)) syndeton and sectional structure are respectively like Fig. 4, shown in Figure 5.Visible by figure, three ports that are used to connect microwave circuit respectively have the contact pin of aciculiform wiring always on the device body, when being connected with the pcb board microwave circuit, earlier each wiring contact pin are passed each through hole on the pcb board respectively, weld again.But in microwave circuit product assembling welding process; Each wiring contact pin of Surface Mount circulator/isolator and the solder joint between each through hole on the pcb board are easy to receive temperatures involved and are destroyed; Cause few tin, rosin joint or open circuit on the staight needle formula wiring contact pin in the through hole, thereby the transmission that can't guarantee microwave signal is smooth and easy.
Summary of the invention
To the defective that exists in the above-mentioned prior art; Even if technical problem to be solved by this invention provides a kind of temperatures involved that receives; Also can guarantee good connection the between wiring contact pin and the pcb board, the transmission that guarantees microwave signal is clubfoot formula Surface Mount circulator/isolator and contact pin welding method thereof smoothly.
In order to solve the problems of the technologies described above, a kind of clubfoot formula Surface Mount circulator/isolator provided by the present invention comprises device body and pcb board;
Be printed with microwave circuit on the said pcb board, and connect three contact pin pads of microwave circuit;
Three ports that are used to connect microwave circuit of said device body, three ports respectively are connected to a wiring contact pin;
It is characterized in that: an end of every wiring contact pin connector spare body is first link; The other end is second link; All quarter bend is converted into L shaped second link of every wiring contact pin towards the outside of device body; The second link kink bottom surface of each wiring contact pin and each the contact pin pad on the pcb board are fitted respectively and spot welding is fixed, and each contact pin pad is all used epoxy encapsulation.
The contact pin welding method of clubfoot formula Surface Mount circulator/isolator provided by the present invention is characterized in that concrete steps are following:
1) device body is placed on the pcb board, and the second link kink bottom surface of three wiring contact pins and each the contact pin pad on the pcb board are fitted respectively;
2) adopting the spot welding mode that the second link kink of three wiring contact pins is welded respectively puts on each the contact pin pad on the pcb board;
3) with epoxy resin each contact pin pad on the pcb board is encapsulated.
Good effect of the present invention is: the clubfoot formula Surface Mount circulator/isolator and the contact pin welding method thereof that provide; Because all quarter bend is converted into L shaped an end of every wiring contact pin connection PCB plate towards the outside of device body; And welding, epoxy encapsulation again after the kink of connection PCB plate one end and the contact pin pad on the pcb board fitted; Therefore in microwave circuit product assembling welding process,, also can effectively avoid solder joint the microwave signal transmission problem that causes because of few tin, rosin joint or open circuit to occur even if receive temperatures involved; Can guarantee good connection the between wiring contact pin and the pcb board, and then guarantee that the transmission of microwave signal is smooth and easy.
Description of drawings
Fig. 1 is the perspective view of the clubfoot formula Surface Mount circulator/isolator of the embodiment of the invention;
Fig. 2 is the A partial enlarged drawing (clubfoot formula contact pin) among Fig. 1;
Fig. 3 is the clubfoot formula contact pin sectional structure chart of Fig. 2;
Fig. 4 is a prior art staight needle formula contact pin syndeton partial enlarged drawing;
Fig. 5 is a prior art staight needle formula contact pin syndeton cutaway view Amplified image.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
Like Fig. 1～shown in Figure 3, a kind of clubfoot formula Surface Mount circulator/isolator that the embodiment of the invention provided comprises device body 1 and pcb board 2;
1 three ports that are used to connect microwave circuit of said device body respectively are connected to a wiring contact pin 3;
Be printed with microwave circuit on the said pcb board 2, and connect three contact pin pads of microwave circuit;
It is characterized in that: an end of every wiring contact pin 3 interface unit bodies 1 is first link; The other end is second link; All quarter bend is converted into L shaped second link of every wiring contact pin 3 towards the outside of device body 1; The second link kink bottom surface of each wiring contact pin 3 and each the contact pin pad on the pcb board 2 are fitted respectively and solid welding, and each contact pin pad is all used epoxy encapsulation.
The contact pin welding method of the clubfoot formula Surface Mount circulator/isolator of the embodiment of the invention is characterized in that concrete steps are following:
1) device body is placed on the pcb board, and the second link kink bottom surface of three wiring contact pins 3 and each contact pin 3 pad on the pcb board 2 are fitted respectively;
2) adopting the spot welding mode that the second link kink of three wiring contact pins 3 is welded respectively puts on each the contact pin pad on the pcb board 2;
3) with epoxy encapsulation each contact pin pad on the pcb board is encapsulated.
Fig. 4 and Fig. 5 are respectively that prior art staight needle formula contact pin syndeton is three-dimensional, the sectional structure partial enlarged drawing.
Visible by figure, three ports respectively have the contact pin of aciculiform wiring always 3 on the device body 1, when being connected with pcb board 2 microwave circuits, earlier each staight needle shape wiring contact pin 3 are passed each through hole 4 on the pcb board 2 respectively, again welding.But in microwave circuit product assembling welding process; Solder joint between each through hole 4 on each staight needle shape wiring contact pin 3 and the pcb board 2 is easy to receive temperatures involved and is destroyed; Cause few tin, rosin joint or open circuit on the staight needle formula wiring contact pin 3 in the through hole 4, thereby the transmission that can't guarantee microwave signal is smooth and easy.Obviously; Compare with prior art staight needle formula contact pin syndeton; Clubfoot formula Surface Mount circulator/isolator provided by the invention and contact pin welding method thereof, clubfoot formula wiring contact pin 3 and pcb board 2 are fitted, spot welding, the syndeton of epoxy encapsulation again owing to adopt; In microwave circuit product assembling welding process; Even if receive temperatures involved, also can effectively avoid solder joint the microwave signal transmission problem that causes because of tin, rosin joint or open circuit less to occur, can guarantee good connection the between wiring contact pin and the pcb board.
Claims (2)
1. a clubfoot formula Surface Mount circulator/isolator comprises device body and pcb board;
Be printed with microwave circuit on the said pcb board, and connect three contact pin pads of microwave circuit;
Said device body is provided with three ports that are used to connect microwave circuit, and three ports respectively are connected to a wiring contact pin;
It is characterized in that: an end of every wiring contact pin connector spare body is first link; The other end is second link; All quarter bend is converted into L shaped second link of every wiring contact pin towards the outside of device body; The second link kink bottom surface of each wiring contact pin and each the contact pin pad on the pcb board are fitted respectively and solid welding, and each contact pin pad is all used epoxy encapsulation.
2. the contact pin welding method of the described clubfoot formula of claim 1 Surface Mount circulator/isolator is characterized in that concrete steps are following:
1) device body is placed on the pcb board, and the second link kink bottom surface of three wiring contact pins and each the contact pin pad on the pcb board are fitted respectively;
2) adopt the spot welding mode that the second link kink of three wiring contact pins is distinguished solid welding on each the contact pin pad on the pcb board;
3) with epoxy resin each contact pin pad on the pcb board is encapsulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104077140A CN102569965A (en) | 2011-12-09 | 2011-12-09 | Bent foot type surface-mount circulator/isolator and insertion needle welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104077140A CN102569965A (en) | 2011-12-09 | 2011-12-09 | Bent foot type surface-mount circulator/isolator and insertion needle welding method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102569965A true CN102569965A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104077140A Pending CN102569965A (en) | 2011-12-09 | 2011-12-09 | Bent foot type surface-mount circulator/isolator and insertion needle welding method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022607A (en) * | 2012-12-24 | 2013-04-03 | 南京广顺电子技术研究所 | Surface-mounted subminiaturized isolator |
| CN112787060A (en) * | 2020-12-29 | 2021-05-11 | 深圳市华扬通信技术有限公司 | Subminiaturized microwave gyromagnetic circulator |
| CN115488459A (en) * | 2022-09-15 | 2022-12-20 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Method for improving lumped parameter circulator/isolator central conductor cold joint defect |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332487A (en) * | 2000-06-30 | 2002-01-23 | 株式会社村田制作所 | Nonreciprocal circuit device and its mounting structure |
| CN2805206Y (en) * | 2005-03-24 | 2006-08-09 | 欧应成 | High voltage generator |
| CN201927693U (en) * | 2010-11-25 | 2011-08-10 | 世达普(苏州)通信设备有限公司 | Interface structure for PCB of microwave circulator |
| CN202333100U (en) * | 2011-12-09 | 2012-07-11 | 捷考奥电子(上海)有限公司 | Pin-bending type pin connection structure of surface-mount circulator/isolator |
-
2011
- 2011-12-09 CN CN2011104077140A patent/CN102569965A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332487A (en) * | 2000-06-30 | 2002-01-23 | 株式会社村田制作所 | Nonreciprocal circuit device and its mounting structure |
| CN2805206Y (en) * | 2005-03-24 | 2006-08-09 | 欧应成 | High voltage generator |
| CN201927693U (en) * | 2010-11-25 | 2011-08-10 | 世达普(苏州)通信设备有限公司 | Interface structure for PCB of microwave circulator |
| CN202333100U (en) * | 2011-12-09 | 2012-07-11 | 捷考奥电子(上海)有限公司 | Pin-bending type pin connection structure of surface-mount circulator/isolator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022607A (en) * | 2012-12-24 | 2013-04-03 | 南京广顺电子技术研究所 | Surface-mounted subminiaturized isolator |
| CN112787060A (en) * | 2020-12-29 | 2021-05-11 | 深圳市华扬通信技术有限公司 | Subminiaturized microwave gyromagnetic circulator |
| CN112787060B (en) * | 2020-12-29 | 2022-01-11 | 深圳市华扬通信技术有限公司 | Subminiaturized microwave gyromagnetic circulator |
| CN115488459A (en) * | 2022-09-15 | 2022-12-20 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Method for improving lumped parameter circulator/isolator central conductor cold joint defect |
| CN115488459B (en) * | 2022-09-15 | 2024-01-16 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Method for improving center conductor cold joint defect of lumped parameter circulator/isolator |
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Application publication date: 20120711 |
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| RJ01 | Rejection of invention patent application after publication |