JP2005353403A

JP2005353403A - Lighting apparatus

Info

Publication number: JP2005353403A
Application number: JP2004172547A
Authority: JP
Inventors: Hoji Umezawa; 宝治梅澤; Tadashi Adachi; 正足立
Original assignee: Asahi Matsushita Electric Works Ltd
Current assignee: Panasonic Life Solutions Asahi Co Ltd
Priority date: 2004-06-10
Filing date: 2004-06-10
Publication date: 2005-12-22

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting apparatus capable of improving a packaging density on a mounting board by mounting components so as to meet the shape of a reflector. <P>SOLUTION: The lighting apparatus comprises the steps of mounting first components 1 of a lead-wire type (large-size resistors, capacitors, coils, semi-fixed resistances, etc.)on the downward surface of a mounting board 2, mounting a second components (micro chip resistor, etc.) on the upward surface of the mounting board 2, disposing the mounted board 2 on downward surface of a main body 3 made of metal, covering the main body 3 by a reflector 4 made of metal, and mounting a ring fluorescent lamp 5 on the downward surface of the reflector 4. The reflector 4 is formed in the outer area so as to make a slant surface region 6 by inclining its underside surface to the upward side, and tall components in the first components 1 (large-size resistors, capacitors, coils, etc.) are mounted at the inner side of the slant surface region 6, and the second components are mounted even on the upward side of the slant surface region 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、回路部品実装に考慮を加えた照明器具に関する。 The present invention relates to a lighting fixture that takes into account circuit component mounting.

特許文献１には、部品を下面に実装した基板を本体の下面に配置し、その下面を反射板で覆い、さらに反射板の下面に環状の蛍光ランプを設けた照明器具であって、反射板の下面全体を斜め上方に向かう傾斜面とし、前記部品を傾斜面の外周付近よりは内周側に実装した照明器具が示される。
特開２００１−１１８４２１号公報 Patent Document 1 discloses a lighting fixture in which a substrate having components mounted on the lower surface is disposed on the lower surface of a main body, the lower surface is covered with a reflecting plate, and an annular fluorescent lamp is provided on the lower surface of the reflecting plate. A lighting fixture is shown in which the entire lower surface of the inclined surface is inclined upward and obliquely upward, and the component is mounted on the inner peripheral side of the inclined surface.
JP 2001-118421 A

しかし、チップタイプの部品実装については何らの開示がなく、基板への部品実装密度を向上することは別段考慮されていない。従って、本発明は、反射板の形状に対応して基板への実装密度を向上することを目的とする。 However, there is no disclosure about chip-type component mounting, and no particular consideration is given to improving the component mounting density on the substrate. Accordingly, an object of the present invention is to improve the mounting density on the substrate in accordance with the shape of the reflector.

本発明を要約すると、リード線タイプの第一部品を下面に実装しチップタイプの第二部品を上面に実装した基板を本体の下面に配置し、その下面を金属製の反射板で覆い、さらに反射板の下面に環状の蛍光ランプを設けた照明器具であって、反射板の下面外周部を斜め上方に向かう傾斜面とし、第一部品のうち背の高い部品を傾斜面より内周側に実装し、第二部品は傾斜面の上方にも実装した照明器具である。 To summarize the present invention, a substrate having a lead wire type first component mounted on the lower surface and a chip type second component mounted on the upper surface is disposed on the lower surface of the main body, and the lower surface is covered with a metal reflector, A lighting fixture provided with an annular fluorescent lamp on the lower surface of the reflecting plate, wherein the lower surface outer peripheral portion of the reflecting plate is inclined obliquely upward, and the taller component of the first component is located on the inner peripheral side from the inclined surface. The lighting device is mounted and the second component is also mounted above the inclined surface.

本発明によれば、第一部品のうち背の高い部品を傾斜面より内周側に実装したため、傾斜面(金属製)との絶縁距離を確保しやすく、第二部品は傾斜面の上方にも実装したため、第二部品を広い範囲に渡って多数実装可能になった。 According to the present invention, since the tall part of the first part is mounted on the inner peripheral side from the inclined surface, it is easy to secure an insulation distance from the inclined surface (made of metal), and the second component is located above the inclined surface. As a result, a large number of second parts can be mounted over a wide range.

次に、本発明の実施形態を説明するが、それはあくまで本発明に基づいて採択された例示的な実施形態であり、本発明をその実施形態に特有な事項に基づいて限定解釈してはならず、本発明の技術的範囲は、特許請求の範囲の請求項に示した事項さらにはその事項と実質的に等価である事項に基づいて定めなければならない。 Next, an embodiment of the present invention will be described. However, this is merely an exemplary embodiment adopted based on the present invention, and the present invention should not be limitedly interpreted based on matters specific to the embodiment. The technical scope of the present invention should be determined based on the matters shown in the claims of the claims and matters substantially equivalent to the matters.

図示の実施形態は、リード線タイプの第一部品１…(大型抵抗、コンデンサ、コイル、半固定抵抗など)を下面に実装しチップタイプの第二部品(超小型チップ抵抗など;複雑化するため図示せず)を上面に実装した基板２を金属製の本体３の下面に配置し、その下面を金属製の反射板４で覆い、さらに反射板４の下面に環状の蛍光ランプ５を設けた照明器具である。 In the illustrated embodiment, a lead-type first component 1 (large resistor, capacitor, coil, semi-fixed resistor, etc.) is mounted on the lower surface, and a chip-type second component (ultra-small chip resistor, etc .; for complexity) A substrate 2 mounted on the upper surface is disposed on the lower surface of the metal main body 3, the lower surface is covered with a metal reflector 4, and an annular fluorescent lamp 5 is provided on the lower surface of the reflector 4. It is a lighting fixture.

そして、反射板４の下面外周部を斜め上方に向かう傾斜面６とし、第一部品１…のうち背の高い部品(大型抵抗、コンデンサ、コイルなど)を傾斜面６より内周側に実装し、第二部品は傾斜面６の上方にも実装している。なお、半固定抵抗などの比較的背の低い第一部品は基板２において傾斜面６の上方に実装してもよい。また、第二部品は基板２の上面全体に平均的に分散実装されるとよい。 And the lower surface outer peripheral part of the reflector 4 is made into the inclined surface 6 which goes diagonally upward, and tall parts (large-sized resistor, a capacitor | condenser, a coil, etc.) are mounted to the inner peripheral side from the inclined surface 6 among 1st components 1 .... The second component is also mounted above the inclined surface 6. The relatively short first component such as a semi-fixed resistor may be mounted on the board 2 above the inclined surface 6. Further, the second component may be distributed and mounted on the entire upper surface of the substrate 2 on average.

さらに他の構成を述べると、本体３は天井に適宜手段で取り付けられ、蛍光ランプ５は本体３に取り付けたソケット７から給電されて点灯可能となっている。 To describe still another configuration, the main body 3 is attached to the ceiling by appropriate means, and the fluorescent lamp 5 can be lit by being fed from a socket 7 attached to the main body 3.

本実施形態によれば、第一部品１…のうち背の高い部品を傾斜面６より内周側に実装したため、傾斜面６(金属製)との絶縁距離を確保しやすく、第二部品は傾斜面６の上方にも実装したため、第二部品を広い範囲に渡って多数実装可能になった。これにより、反射板４の形状に対応して基板２への実装密度を向上できた。 According to this embodiment, since the tall component of the first component 1 is mounted on the inner peripheral side from the inclined surface 6, it is easy to secure an insulation distance from the inclined surface 6 (made of metal), and the second component is Since mounting is also performed above the inclined surface 6, a large number of second parts can be mounted over a wide range. Thereby, the mounting density to the board | substrate 2 was able to be improved corresponding to the shape of the reflecting plate 4. FIG.

本発明の実施形態を示す断面図Sectional drawing which shows embodiment of this invention 同分解斜視図Exploded perspective view

Explanation of symbols

１第一部品
２基板
３本体
４反射板
５蛍光ランプ
６傾斜面 DESCRIPTION OF SYMBOLS 1 1st component 2 Board | substrate 3 Main body 4 Reflecting plate 5 Fluorescent lamp 6 Inclined surface

Claims

A board with the lead wire type first component mounted on the lower surface and the chip type second component mounted on the upper surface is placed on the lower surface of the main body, the lower surface is covered with a metal reflector, and the lower surface of the reflector is annular The fluorescent lamp is provided with the outer peripheral portion of the lower surface of the reflecting plate as an inclined surface that extends obliquely upward, and the taller component of the first component is mounted on the inner peripheral side from the inclined surface. Is a lighting fixture mounted above the inclined surface.