CN105589138A - Photovoltaic conversion device - Google Patents
Photovoltaic conversion device Download PDFInfo
- Publication number
- CN105589138A CN105589138A CN201410581995.5A CN201410581995A CN105589138A CN 105589138 A CN105589138 A CN 105589138A CN 201410581995 A CN201410581995 A CN 201410581995A CN 105589138 A CN105589138 A CN 105589138A
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- China
- Prior art keywords
- conversion device
- circuit board
- printed circuit
- photoelectric conversion
- pcb
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Abstract
The invention relates to a photovoltaic conversion device that is in butt joint with a fiber to convert an optical signal into an electric signal. The photovoltaic conversion device comprises a printed circuit board, a photoelectric element, and a lens assembly. The printed circuit board has an upper end surface and a lower end surface; the photoelectric element is installed on the upper end surface; and the lens assembly is installed at the lower end surface. The printed circuit board is provided with a through hole which an optical signal can pass through; and the through hole is aligned at the photoelectric element.
Description
[technical field]
The present invention is relevant a kind of photoelectric conversion device, relates in particular to a kind of photoelectric conversion device that is beneficial to high-frequency transmission.
[background technology]
In prior art, photoelectric conversion device comprises printed circuit board (PCB), active member and integrated circuit component, and described active member and described integrated circuit component are directly installed on described printed circuit board (PCB). Described active member is first connected with described integrated circuit component by wire-bond mode, described integrated circuit component is connected with described printed circuit board (PCB) by gold thread again, because gold thread is elongated, the resistance of gold thread is larger, in the time that voltage is definite value, electric current is larger, and U=L (dI/dt), easily cause higher inductance value, be unfavorable for the transmission of high-frequency signals; And the radiating surface of described active member and described integrated circuit component can only be fitted with printed circuit board (PCB), be unfavorable for heat radiation; Due to the radiating surface of the active member printed circuit board (PCB) of fitting down, be the light-emitting area of active member upward, lens must from up to down cover light-emitting area, are not easy to check size, electric current and the voltage etc. of active member inside, after this photoelectric conversion device loses efficacy, cannot debug and repair.
Therefore, need to provide a kind of improved photoelectric conversion device to overcome the above-mentioned defect of prior art.
[summary of the invention]
Technical problem to be solved by this invention is to provide a kind of photoelectric conversion device that is conducive to high-frequency transmission.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of photoelectric conversion device, in order to fiber alignment so that light signal is converted to electric signal, described photoelectric conversion device comprises printed circuit board (PCB), photoelectric cell and lens subassembly, described printed circuit board (PCB) has upper surface and lower surface, described photoelectric cell is installed on described upper surface, described lens subassembly is installed on described lower surface, and described printed circuit board (PCB) has through hole and passes for light signal, described through hole and described photoelectric cell consistency from top to bottom.
Other specific features of the present invention is as follows:
The lower surface of described printed circuit board (PCB) is upwards recessed to form the first host cavity, and described the first host cavity is accommodated described lens subassembly.
Described lens subassembly comprises plastic body, and described plastic body has upper surface and lower surface, and described upper surface is provided with two locating dowels, is provided with two locating holes in described the first host cavity, and described locating hole is accommodated described locating dowel.
Described lens subassembly also comprises first lens, and the upper surface of plastic body is recessed to form downwards and is positioned at the second middle host cavity of described two locating dowels, and described first lens is installed on described the second host cavity, described first lens and aforementioned respective through hole consistency from top to bottom.
Described lens subassembly also comprises the second lens, and the lower surface of described plastic body is provided with the 3rd host cavity, and described the second lens are installed in described the 3rd host cavity.
Described lens subassembly also comprises the optical fiber being assembled on plastic body, and described plastic body is provided with a crossbeam, and described optical fiber is installed on described crossbeam.
Described photoelectric cell is connected on the upper surface of described printed circuit board (PCB) by tin ball bonding.
Upper surface and the lower surface of described printed circuit board (PCB) are provided with conducting strip, and described printed circuit board (PCB) has the butt end in order to dock with butt-jointed electric connector, and described conducting strip is located at described butt end.
With respect to prior art, lens subassembly described in the present invention, without covering described photoelectric cell, is convenient to check size, electric current and the voltage etc. of photoelectric cell inside again, after this photoelectric conversion device loses efficacy, is convenient to debug and repair.
[brief description of the drawings]
Fig. 1 is the stereogram of photoelectric conversion device of the present invention.
Fig. 2 is the stereogram of another angle of photoelectric conversion device shown in Fig. 1.
Fig. 3 is the three-dimensional exploded view of photoelectric conversion device shown in Fig. 2.
Fig. 4 is the three-dimensional exploded view at another visual angle of photoelectric conversion device shown in Fig. 3.
Fig. 5 is the further three-dimensional exploded view of photoelectric conversion device shown in Fig. 4.
Fig. 6 is the enlarged drawing of photoelectric cell shown in Fig. 5.
Fig. 7 is the cutaway view of the A-A along the line of photoelectric conversion device shown in Fig. 1.
[main element symbol description]
| Photoelectric conversion device | 100 | Optical fiber | 200 |
| Printed circuit board (PCB) | 11 | First end | 111 |
| The second end | 112 | Upper surface | 113 |
| Lower surface | 114 | Conducting strip | 115 |
| The first host cavity | 116 | Locating hole | 117 |
| Through hole | 118 | Active member | 12 |
| Integrated circuit component | 13 | First surface | 121、131 |
| Second surface | 122、132 | Plastic body | 14 |
| Upper surface | 141 | Lower surface | 142 |
| Locating dowel | 143 | The second host cavity | 144 |
| The 3rd host cavity | 145 | Crossbeam | 146 |
| First lens | 15 | The second lens | 16 |
| Tin ball | 17 |
Following detailed description of the invention further illustrates the present invention in connection with above-mentioned accompanying drawing.
[detailed description of the invention]
Consult Fig. 1 to Fig. 7, the present invention is a kind of photoelectric conversion device 100, described photoelectric conversion device 100 converts electric signal in order to the light signal that optical fiber 200 is sent, and this photoelectric conversion device 100 comprises printed circuit board (PCB) 11, be installed on the photoelectric cell on printed circuit board (PCB) 11 and be installed on the lens subassembly of printed circuit board (PCB) 11 one end.
Described printed circuit board (PCB) 11 comprises first end 111 and the second end 112, and described first end 111 is in order to dock with butt-jointed electric connector (not shown), and described the second end 112 is in order to install described lens subassembly. Described printed circuit board (PCB) 11 has upper surface 113 and lower surface 114, and the upper surface 113 of described first end 111 is provided with the conducting strip 115 in order to dock with butt-jointed electric connector (not shown) with lower surface 114. Described upper surface 113 is in order to install described photoelectric cell. Described lower surface 114 is upwards recessed to form first host cavity 116, in order to accommodate described lens subassembly. In described the first host cavity 116, be provided with two locating holes 117 and be positioned at the middle through hole 118 of described two locating holes 117.
Described photoelectric cell comprises two active members 12 and two integrated circuit components 13. Described active member 12 all has first surface 121,131 and second surface 122,132 with described integrated circuit component 13. Described first surface 121,131 is radiating surface. The second surface 122,132 of described two active members 12 and two integrated circuit components 13 is welded on the upper surface 113 of described printed circuit board (PCB) 11 by tin ball 17. Described two active members 12 are connected by wire with described two integrated circuit components 13, and described wire is laid on described printed circuit board (PCB) 11.
Described lens subassembly comprises plastic body 14 and is located at relative first lens 15 and the second lens 16 on plastic body 14. Described plastic body 14 light-permeables. Described plastic body 14 has upper surface 141 and lower surface 142, the upper surface 141 of described plastic body 14 is provided with two locating dowels 143 and is positioned at middle second host cavity 144 of described two locating dowels 143, and the locating hole 117 of described printed circuit board (PCB) 11 is accommodated described locating dowel 143. In described the second host cavity 144, be provided with first lens 15, described first lens 15 vertically aligns one by one with the through hole 118 of described printed circuit board (PCB) 11, and described through hole 118 passes for light signal. Described first lens 15 vertically aligns with described active member 12. The lower surface 142 of described plastic body 14 is provided with the 3rd host cavity 145, in described the 3rd host cavity 145, is provided with the second lens 16. Described plastic body 14 is provided with a crossbeam 146, and described optical fiber 200 is installed on described crossbeam 146. Described the second lens 16 receive the light signal that described optical fiber 200 sends, and light signal is refracted to described first lens 15, described first lens 15 will reach the active member 12 of described printed circuit board (PCB) 11 upper surfaces 113 after parallel light focusing, thereby realizes the function that light signal is converted to electric signal. Described active member 12 reaches integrated circuit component 13 by wire by electric signal.
The present invention is welded on described active member 12 and the second surface 122,132 of described integrated circuit component 13 upper surface 113 of described printed circuit board (PCB) 11 by tin ball 17, described active member 12 is connected by wire with described integrated circuit component 13. Compared to wire-bond technology of the prior art, in the present invention, wire is shorter, thereby can reduce inductance value, is beneficial to the transmission of high-frequency signals; Described active member 12 is radiating surface with first surface 121, the 131(of described integrated circuit component 13), be convenient to heat radiation upward; Described first lens 15 and the second lens 16 need not cover described active member 12 and described integrated circuit component 13, are convenient to check size, electric current and the voltage etc. of described active member 12 and described integrated circuit component 13 inside.
Claims (8)
1. a photoelectric conversion device, in order to fiber alignment so that light signal is converted to electric signal, described photoelectric conversion device comprises printed circuit board (PCB), photoelectric cell and lens subassembly, described printed circuit board (PCB) has upper surface and lower surface, it is characterized in that: described photoelectric cell is installed on described upper surface, described lens subassembly is installed on described lower surface, and described printed circuit board (PCB) has through hole and passes for light signal, described through hole and described photoelectric cell consistency from top to bottom.
2. photoelectric conversion device as claimed in claim 1, is characterized in that: the lower surface of described printed circuit board (PCB) is upwards recessed to form the first host cavity, and described the first host cavity is accommodated described lens subassembly.
3. photoelectric conversion device as claimed in claim 2, it is characterized in that: described lens subassembly comprises plastic body, described plastic body has upper surface and lower surface, described upper surface is provided with two locating dowels, in described the first host cavity, be provided with two locating holes, described locating hole is accommodated described locating dowel.
4. photoelectric conversion device as claimed in claim 3, it is characterized in that: described lens subassembly also comprises first lens, the upper surface of plastic body is recessed to form downwards and is positioned at the second middle host cavity of described two locating dowels, described first lens is installed on described the second host cavity, described first lens and aforementioned respective through hole consistency from top to bottom.
5. photoelectric conversion device as claimed in claim 3, is characterized in that: described lens subassembly also comprises the second lens, and the lower surface of described plastic body is provided with the 3rd host cavity, and described the second lens are installed in described the 3rd host cavity.
6. photoelectric conversion device as claimed in claim 3, is characterized in that: described lens subassembly also comprises the optical fiber being assembled on plastic body, and described plastic body is provided with a crossbeam, and described optical fiber is installed on described crossbeam.
7. photoelectric conversion device as claimed in claim 1, is characterized in that: described photoelectric cell is connected on the upper surface of described printed circuit board (PCB) by tin ball bonding.
8. photoelectric conversion device as claimed in claim 1, it is characterized in that: upper surface and the lower surface of described printed circuit board (PCB) are provided with conducting strip, described printed circuit board (PCB) has the butt end in order to dock with butt-jointed electric connector, and described conducting strip is located at described butt end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581995.5A CN105589138A (en) | 2014-10-28 | 2014-10-28 | Photovoltaic conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410581995.5A CN105589138A (en) | 2014-10-28 | 2014-10-28 | Photovoltaic conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105589138A true CN105589138A (en) | 2016-05-18 |
Family
ID=55928859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410581995.5A Pending CN105589138A (en) | 2014-10-28 | 2014-10-28 | Photovoltaic conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105589138A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5184708B1 (en) * | 2011-10-26 | 2013-04-17 | 古河電気工業株式会社 | Optical module |
| EP2581776A1 (en) * | 2011-10-13 | 2013-04-17 | Tyco Electronics Svenska Holdings AB | Optical connector with alignment element, optical unit and assembly method |
| CN103201661A (en) * | 2010-10-26 | 2013-07-10 | Fci公司 | Alignment pin and optical communication system |
| CN103389550A (en) * | 2012-05-09 | 2013-11-13 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber coupling connector |
| CN103777286A (en) * | 2012-10-23 | 2014-05-07 | 鸿富锦精密工业（深圳）有限公司 | Photoelectric conversion module |
| CN104111507A (en) * | 2013-04-19 | 2014-10-22 | 深圳新飞通光电子技术有限公司 | Integrated parallel optical assembly and optical transceiver module |
-
2014
- 2014-10-28 CN CN201410581995.5A patent/CN105589138A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103201661A (en) * | 2010-10-26 | 2013-07-10 | Fci公司 | Alignment pin and optical communication system |
| EP2581776A1 (en) * | 2011-10-13 | 2013-04-17 | Tyco Electronics Svenska Holdings AB | Optical connector with alignment element, optical unit and assembly method |
| JP5184708B1 (en) * | 2011-10-26 | 2013-04-17 | 古河電気工業株式会社 | Optical module |
| CN103389550A (en) * | 2012-05-09 | 2013-11-13 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber coupling connector |
| CN103777286A (en) * | 2012-10-23 | 2014-05-07 | 鸿富锦精密工业（深圳）有限公司 | Photoelectric conversion module |
| CN104111507A (en) * | 2013-04-19 | 2014-10-22 | 深圳新飞通光电子技术有限公司 | Integrated parallel optical assembly and optical transceiver module |
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Application publication date: 20160518 |
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| RJ01 | Rejection of invention patent application after publication |