CN201781404U - Power adapter - Google Patents
Power adapter Download PDFInfo
- Publication number
- CN201781404U CN201781404U CN2010201225955U CN201020122595U CN201781404U CN 201781404 U CN201781404 U CN 201781404U CN 2010201225955 U CN2010201225955 U CN 2010201225955U CN 201020122595 U CN201020122595 U CN 201020122595U CN 201781404 U CN201781404 U CN 201781404U
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- pcb
- electronic devices
- components
- insulating layer
- power supply
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Abstract
The utility model provides a power adapter. The power adapter comprises a shell, a printed circuit board (PCB), an electronic component, a heat-conducting insulating layer and a shield cover, wherein the PCB is arranged in the shell; the electronic component is arranged on the PCB; the heat-conducting insulating layer is filled between the bottom of the electronic component and the PCB board; and the shield cover is arranged at the periphery of the electronic component so as to prevent electromagnetic interference. The bottom of the electronic component is provided with the heat-conducting insulating layer, so that the stress between the electronic component on the PCB and the PCB is lowered greatly, cracking of a welding spot on the PCB is reduced, the temperature of the PCB is lowered, and the yield of the power adapter is increased greatly.
Description
Technical field
The utility model relates to a kind of power supply adaptor.
Background technology
Power supply adaptor is the power supply conversion equipment of small portable electronic device and electronic apparatus, and it extensively is matched in the equipment such as phone composite aircraft, game machine, language playback device, walkman, notebook, cell phone.
Power supply adaptor generally includes shell, pcb board (printed circuit board (PCB), Printed Circuit Board) and is installed in various electronic devices and components on the pcb board.Printed circuit board (PCB) is the power supply adaptor core control part, and the electronic devices and components on it are as by transformer, resistance, electric capacity, inductance, rectifier etc.Printed circuit board plug-in technology directly is inserted in electronic devices and components on the pcb board in the prior art; carry out wave-soldering and manual welding; but between the pin of electronic devices and components and the pcb board; owing to there is certain space; and after regular hour or operation; especially through regular meeting cracking appears at the solder joint place; and the heat between electronic devices and components and the pcb board is difficult for leaving; electronic devices and components also are subjected to extraneous interference easily; thereby reduced the reliability of the signal of telecommunication between each electronic devices and components; cause the power supply adaptor performance bad, can't use.
Summary of the invention
Technical problem to be solved in the utility model is to ftracture easily and the reliable inadequately defective of electrical property at the wiring board in the power supply adaptor in the prior art, and a kind of not easy to crack and reliable power supply adaptor of the signal of telecommunication is provided.
The technical scheme that its technical problem that solves the utility model adopts provides a kind of power supply adaptor, it comprises shell, pcb board in the enclosure is set and be installed in electronic devices and components on the pcb board, also comprises being filled in the heat conductive insulating layer between described electronic devices and components bottom and the pcb board and being arranged on described electronic devices and components periphery to prevent the radome of electromagnetic interference.
Preferably, described heat conductive insulating layer is thermal grease layer or layer of silica gel.
Preferably, described electronic devices and components comprise transformer and rectifier.
The utility model is by being provided with the heat conductive insulating layer in the electronic devices and components bottom, because the heat conductive insulating layer has certain height, it can support electronic devices and components, help reducing the stress between pcb board and the electronic devices and components, significantly reduce PCB solder joint cracking situation when falling after electronic devices and components weld, simultaneously, the heat conductive insulating layer also can reduce the temperature of transformer, radome reduces extraneous interference, thereby help improving the electrical property of electronic devices and components, thereby improve reliability and yields thereof that power supply adaptor is electrically connected greatly.
Description of drawings
Fig. 1 is the structural representation of power supply adaptor in the utility model one preferred embodiment;
Fig. 2 is the structural representation of power supply adaptor inside among the another embodiment that provides of the utility model.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The power supply adaptor that the utility model provides comprises shell 2, pcb board 4 in the enclosure is set and be installed in electronic devices and components 1 on the pcb board, also comprises the radome 3 that is filled in the heat conductive insulating layer 5 between described electronic devices and components bottom and the pcb board and is arranged on described electronic devices and components 1 periphery.The heat conductive insulating layer is preferably electric silica gel and thermal grease by having heat conductivility and non electrically conductive material constitutes.
Referring to Fig. 1 and Fig. 2, the structural representation of power supply adaptor among the embodiment that Fig. 1 provides for the utility model, Fig. 2 is the structural representation of power supply adaptor inside among the another embodiment.In Fig. 1, shell links to each other with extraneous other electronic equipment by power line 7 and jack 6, be coated with an amount of heat conductive insulating layer between the bottom of electronic devices and components 1 and the pcb board, the heat conductive insulating layer has certain thickness and height, power supply adaptor has different models, then the model of the pcb board of its selection and electronic devices and components is also different, so the thickness and the width difference of the heat conductive insulating layer that fill different electronic devices and components bottom, the slit that the heat conductive insulating layer is filled between electronic devices and components 1 and the pcb board 4 gets final product.
Referring to Fig. 2, the structure that it shows transformer in the adapter has multiple electronic devices and components in the power supply adaptor, for example rectifier, transformer, resistance, electric capacity or the like, especially transformer is very important, sees Fig. 2, and the transformer bottom is coated with certain thickness thermal grease.Simultaneously, the outer periphery of electronic devices and components is equipped with radome, and radome is arranged at bottom, and the side of electronic devices and components of top, the pcb board of electronic devices and components, thereby can effectively prevent extraneous electromagnetic interference, improves the circuit electrical property.So the heat conductive insulating layer has reduced the stress between pcb board and the electronic devices and components, PCB solder joint cracking also helps the circuit board heat radiation in the time of can preventing to fall after electronic devices and components from welding, and improves the reliability of circuit.Thereby prevent the cracking of solder joint on the pcb board, help heat radiation simultaneously, improved the yields of circuit reliability and power supply adaptor.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. power supply adaptor, comprise shell, pcb board in the enclosure is set and is installed in electronic devices and components on the pcb board, it is characterized in that, also comprise being filled in the heat conductive insulating layer between described electronic devices and components bottom and the pcb board and being arranged on described electronic devices and components periphery to prevent the radome of electromagnetic interference.
2. power supply adaptor as claimed in claim 1 is characterized in that, described heat conductive insulating layer is thermal grease layer or layer of silica gel.
3. power supply adaptor as claimed in claim 1 is characterized in that described electronic devices and components comprise transformer and rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201225955U CN201781404U (en) | 2010-02-27 | 2010-02-27 | Power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201225955U CN201781404U (en) | 2010-02-27 | 2010-02-27 | Power adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201781404U true CN201781404U (en) | 2011-03-30 |
Family
ID=43794606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201225955U Expired - Fee Related CN201781404U (en) | 2010-02-27 | 2010-02-27 | Power adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201781404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780405A (en) * | 2012-08-15 | 2012-11-14 | 陈才华 | Power adapter capable of suppressing electromagnetic interference |
| CN103066808A (en) * | 2013-01-11 | 2013-04-24 | 苏州中泰电子有限公司 | Ultra thin type power adapter |
-
2010
- 2010-02-27 CN CN2010201225955U patent/CN201781404U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780405A (en) * | 2012-08-15 | 2012-11-14 | 陈才华 | Power adapter capable of suppressing electromagnetic interference |
| CN103066808A (en) * | 2013-01-11 | 2013-04-24 | 苏州中泰电子有限公司 | Ultra thin type power adapter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20160227 |