JP3185532U - Dielectric withstand voltage structure of power supply with reduced electromagnetic noise - Google Patents
Dielectric withstand voltage structure of power supply with reduced electromagnetic noise Download PDFInfo
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- JP3185532U JP3185532U JP2013003410U JP2013003410U JP3185532U JP 3185532 U JP3185532 U JP 3185532U JP 2013003410 U JP2013003410 U JP 2013003410U JP 2013003410 U JP2013003410 U JP 2013003410U JP 3185532 U JP3185532 U JP 3185532U
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- insulating resin
- power supply
- electromagnetic noise
- resin case
- metal foil
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- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 239000011888 foil Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
【課題】電磁ノイズを低減したうえでＬＥＤ基板等の他の回路基板との電気的ショートを防止し、更に、このＬＥＤ基板等の他の回路基板間に高耐圧絶縁性をもった構造の照明機器用電源装置を提供する。
【解決手段】ＬＣフィルタ回路を設けた電源プリント回路基板１と、この電源プリント回路基板１を包囲する絶縁樹脂ケース２，４と、その絶縁樹脂ケース２，４の外側を包囲する金属箔３と、更にその金属箔３の外側に配置した絶縁樹脂ケースとから成る。
【選択図】図１An object of the present invention is to reduce the electromagnetic noise and prevent an electrical short circuit with another circuit board such as an LED board, and also to have a structure with high withstand voltage insulation between the other circuit boards such as the LED board. A power supply device for equipment is provided.
A power printed circuit board 1 provided with an LC filter circuit, insulating resin cases 2 and 4 surrounding the power printed circuit board 1, and a metal foil 3 surrounding the outside of the insulating resin cases 2 and 4 And an insulating resin case disposed outside the metal foil 3.
[Selection] Figure 1
Description
本考案は、電磁ノイズを低減した照明機器用電源装置の絶縁耐圧構造に関する。The present invention relates to a withstand voltage structure of a power supply device for lighting equipment with reduced electromagnetic noise.
従来は白熱電球のように交流電源を直接照明ランプに印加して点灯させていたが、現在はＬＥＤランプのように交流電源から直流電源に変換して発光素子や光源に印加するものが増えている。Conventionally, an AC power supply was directly applied to an illumination lamp, such as an incandescent lamp, but it is now being turned on, such as an LED lamp, converted from an AC power supply to a DC power supply and applied to a light emitting element or light source Yes.
交流電源を直流電源に変換すると、多くの場合放射ノイズや伝導ノイズの電磁ノイズを発生し、この電磁ノイズによって他の機器を誤動作させたり、テレビやラジオに雑音が入ったり、心臓のペースメーカーに悪影響を与える可能性がある。そのため、この電磁ノイズは低いレベルに抑える必要がある。Converting an AC power source to a DC power source often generates electromagnetic noise, such as radiation noise or conduction noise, which can cause other devices to malfunction, cause noise in the TV or radio, and adversely affect the heart pacemaker. May give. Therefore, it is necessary to suppress this electromagnetic noise to a low level.
近年、省エネの観点からＬＥＤ蛍光灯の需要が増えているが、特に直管蛍光灯型ＬＥＤランプについての日本国内で有効な電磁ノイズ規格は無い。そのため市場に流通しているＬＥＤランプには従来の照明機器と比べて非常に高いレベルの電磁ノイズを発生しているものが多く見受けられる。In recent years, the demand for LED fluorescent lamps has increased from the viewpoint of energy saving, but there is no electromagnetic noise standard effective in Japan particularly for straight tube fluorescent lamp type LED lamps. For this reason, many LED lamps on the market generate electromagnetic noise at a very high level compared to conventional lighting equipment.
このような電磁ノイズは、機械的構造や電気回路構成次第で低減することができる。電気回路的に電磁ノイズを低減する手法として、ＬＣフィルタ回路を設けることで低減できる。しかし低減効果が十分でない場合には、更なる低減手法として金属類でシールドする機械的構造も採用されている。Such electromagnetic noise can be reduced depending on the mechanical structure and the electric circuit configuration. As a technique for reducing electromagnetic noise in terms of electrical circuit, it can be reduced by providing an LC filter circuit. However, when the reduction effect is not sufficient, a mechanical structure that shields with metal is also adopted as a further reduction method.
しかし、ＡＣ−ＤＣ電源装置内蔵のＬＥＤランプを例にとると。上記の構造の電源装置では、ＬＥＤ素子を実装したプリント回路基板等と電気的にショートする懸念があり、また、雷サージ等の高電圧が印加された際のアーク放電が発生する可能性がある。However, taking an LED lamp with a built-in AC-DC power supply as an example. In the power supply device having the above structure, there is a concern that an electrical short-circuit may occur with a printed circuit board mounted with an LED element, and arc discharge may occur when a high voltage such as a lightning surge is applied. .
本考案は、ＬＣフィルタ回路をＡＣ−ＤＣ変換電源装置内に設けることで電磁ノイズを低減したうえで、この電源装置を絶縁樹脂ケースで包囲し、更にアルミテープ等の金属箔で覆い、その金属箔の外側に更に絶縁樹脂ケースを設けている。この手段により、電磁ノイズを低減したうえで電源装置とＬＥＤ基板等の他の回路との電気的ショートの懸念がなく、雷サージ等の高電圧が印加された際にもアーク放電を防止できる構造を実現している。The present invention reduces the electromagnetic noise by providing the LC filter circuit in the AC-DC conversion power supply device, surrounds the power supply device with an insulating resin case, and further covers it with a metal foil such as aluminum tape. An insulating resin case is further provided outside the foil. By this means, electromagnetic noise is reduced, there is no fear of electrical short circuit between the power supply device and other circuits such as LED boards, and arc discharge can be prevented even when a high voltage such as lightning surge is applied Is realized.
本考案の実施形態によれば、電磁ノイズを低減したうえでＬＥＤ基板等の他の回路基板との電気的ショートを防止し、更に、このＬＥＤ基板等の他の回路基板間に高耐圧絶縁性をもった構造の照明機器用電源装置の実現を図っている。According to the embodiments of the present invention, the electromagnetic noise is reduced and an electrical short circuit with another circuit board such as an LED board is prevented, and further, a high withstand voltage insulation is provided between the other circuit boards such as the LED board. Realization of a power supply device for lighting equipment with a structure.
図１は本考案の第１の実施形態に係る絶縁樹脂ケースと金属箔の構成及び使用形態例を示した側面断面図である。電源プリント回路基板１をショート防止のため絶縁樹脂ケースａ２で包囲し、その樹脂ケースａ２の外側を金属箔３で包囲している。更にこの金属箔の外側にＬＥＤ回路基板等とのショート防止のために絶縁樹脂ケースｂ４を設けたことを特徴とする。FIG. 1 is a side cross-sectional view showing the configuration and usage example of an insulating resin case and metal foil according to the first embodiment of the present invention. The power supply printed
図２は本考案の第２の実施形態に係る絶縁樹脂ケースと金属箔の構成及び使用形態例を示した側面断面図である。第２の実施形態は第１の実施形態の構造のものに対して、金属箔３と絶縁樹脂ケースａ２及び絶縁樹脂ケースｂ４に引き出し電線等用の開口部５を設けたことと、絶縁樹脂ケースｂ４の形状を小型化して必要な部分のみを覆った形状を特徴とする。FIG. 2 is a side cross-sectional view showing a configuration and an example of usage of an insulating resin case and metal foil according to a second embodiment of the present invention. In the second embodiment, the
図２のように、金属箔１１、絶縁樹脂ケース２及び４には電線等を引き出すための開口部５があってもよい。なお、この開口部５は２か所以上あってもよい。As shown in FIG. 2, the metal foil 11 and the
図１及び図２の構造の電源は、ＬＥＤランプ用だけでなく、ＥＬ素子を使ったランプやＣＣＦＬ光源にも使用できる。The power supply having the structure shown in FIGS. 1 and 2 can be used not only for an LED lamp but also for a lamp using an EL element or a CCFL light source.
図１及び図２では金属箔で覆う使用例を示したが、金属製テープを貼り付けたり、金属をラミネート加工したり、金属製の箱状のもので覆ってもよい。Although FIG. 1 and FIG. 2 show usage examples covered with a metal foil, a metal tape may be attached, a metal may be laminated, or covered with a metal box.
図１及び図２では絶縁樹脂ケースを使用する例を示したが、絶縁樹脂封入やラミネート加工した構造でもよい。Although an example in which an insulating resin case is used is shown in FIGS. 1 and 2, an insulating resin encapsulated or laminated structure may be used.
１ 電源プリント回路基板
２ 絶縁樹脂ケースａ
３ 金属箔
４ 絶縁樹脂ケースｂ
５ 開口部
６ａ 実装部品１
６ｂ 実装部品２1 Power supply printed
3 Metal foil 4 Insulating resin case b
5
6b Mounted
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| Application Number | Priority Date | Filing Date | Title |
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| JP2013003410U JP3185532U (en) | 2013-05-29 | 2013-05-29 | Dielectric withstand voltage structure of power supply with reduced electromagnetic noise |
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| JP2013003410U JP3185532U (en) | 2013-05-29 | 2013-05-29 | Dielectric withstand voltage structure of power supply with reduced electromagnetic noise |
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| JP3185532U true JP3185532U (en) | 2013-08-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160134042A (en) * | 2015-05-14 | 2016-11-23 | (주)포인트엔지니어링 | Light engine for luminous element |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160134042A (en) * | 2015-05-14 | 2016-11-23 | (주)포인트엔지니어링 | Light engine for luminous element |
| US10039160B2 (en) | 2015-05-14 | 2018-07-31 | Point Engineering Co., Ltd. | Light engine for light emitting element |
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