WO2010090314A1 - Led substrate mounting device - Google Patents

Led substrate mounting device Download PDF

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Publication number
WO2010090314A1
WO2010090314A1 PCT/JP2010/051792 JP2010051792W WO2010090314A1 WO 2010090314 A1 WO2010090314 A1 WO 2010090314A1 JP 2010051792 W JP2010051792 W JP 2010051792W WO 2010090314 A1 WO2010090314 A1 WO 2010090314A1
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Prior art keywords
frame
lower frame
led substrate
side wall
led
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PCT/JP2010/051792
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French (fr)
Japanese (ja)
Inventor
清泰 小林
和寿 源馬
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株式会社ケノス
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Publication of WO2010090314A1 publication Critical patent/WO2010090314A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F21V19/0045—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by tongue and groove connections, e.g. dovetail interlocking means fixed by sliding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to an LED substrate fixing device in an illumination device using an LED (light emitting diode) chip.
  • heat dissipation from the LED chip is a major issue.
  • an LED when used as a lighting device, it is necessary to increase the amount of light.
  • the amount of heat generated increases. If this heat is not dissipated and stored in the LED substrate, the life of the LED chip is shortened and it is difficult to obtain reliability as a lighting device.
  • an invention has been disclosed in which an LED chip is disposed on a thermally conductive substrate (for example, JP-A-2007-43125).
  • JP 2007-43125 A JP 2007-43125 A
  • the above-described invention cannot be expected to be effective unless it is combined with a technique for radiating the heat of the substrate.
  • no structure for radiating heat has been proposed. And although it is preferable that the structure for radiating heat and the structure for fixing the substrate cooperate, such a thing is not known.
  • An object of the present invention is to increase the heat radiation efficiency while integrating the structure for heat dissipation and the structure for fixing the LED substrate to facilitate fixing of the LED substrate.
  • the LED board mounting apparatus includes a lower frame having a supporting surface of the LED board and having lower vertical walls below both sides in the longitudinal direction, an upper frame fixed to the lower frame, and the lower frame. It is comprised with the LED board arrange
  • the LED substrate has thermal conductivity, and the lower frame and the upper frame are made of metal to dissipate heat generated from the LED chip, and the upper surface of the lower frame and the opposite of the upper frame
  • the surface of the LED substrate is sandwiched between opposite surfaces of the upper surface of the lower frame and the upper surface of the lower frame formed on the upper frame, the upper frame is
  • the lower frame has a lower vertical wall below both sides of the surface facing the upper surface of the lower frame, and the inner wall of the lower vertical wall and the side wall of the lower frame are brought into surface contact so that heat generated by the LED chip is generated by the lower frame.
  • the heat is conducted to the body and radiated from the side wall of the lower frame, and is conducted from the side wall of the lower frame to the side wall of the upper frame to be radiated from the side wall of the upper frame.
  • the LED substrate having thermal conductivity adopts a known configuration such as a substrate in which metal is embedded while insulating the circuit of the LED chip, and the configuration is not limited.
  • the metal constituting the frame a metal such as aluminum or iron can be used as appropriate.
  • the upper frame has an upper vertical wall above a surface facing the upper surface of the lower frame.
  • the upper frame has a vertical wall lower vertical wall below both sides of the surface facing the upper surface of the lower frame, and a ventilation portion is provided on the lower vertical wall.
  • any one of the inventions of claims 1 to 3 is intended to effectively utilize the heat dissipation of the upper frame and the lower frame.
  • the upper frame body and the lower frame body are fixed by fitting grooves and ridges formed in the respective longitudinal directions.
  • the heat generated by the LED chip is generated between the lower frame and the upper frame. And is radiated from each wall surface. That is, the LED board fixing device performs a heat dissipation function, and since heat is radiated from the wall surfaces of both the lower frame and the upper frame, the area contributing to heat dissipation can be increased and efficient heat dissipation can be obtained. It is done. Therefore, the lifetime of the LED chip is increased, and the reliability as a lighting fixture is improved.
  • the thickness of the LED substrate is placed on the top surface of the top plate 1 of the lower frame A, which is a long frame open at the bottom formed by connecting the lower side walls 2 facing downward on both sides of the top plate 1.
  • a board mounting groove 3 corresponding to is provided, and a long LED board B is disposed in the groove 3, and both sides of the LED board B are on the upper surface and the upper frame of the top plate 1 of the lower frame A. It is pinched by the opposing surface 4 with the top plate 1 formed in the body C.
  • the lower frame A and the upper frame C are both made of aluminum (extruded product), and the LED board B is assumed to be thermally conductive.
  • a good heat conductor such as heat radiating silicone is incorporated in the longitudinal direction on both sides of the LED substrate and the portions sandwiched between the frame bodies A and C.
  • the upper frame C is a long material having a length equivalent to that of the lower frame A, and is formed on both sides along the longitudinal direction in cooperation with the upper surface of the top plate 1 of the lower frame A.
  • the opposing surface 4 is formed to hold the gap.
  • Each of the facing surfaces 4 has an inner edge portion 4 a that is in close contact with the upper surface of the LED substrate B, and the remaining portion is in contact with the upper surface of the top plate 1.
  • An upper side wall 5 is formed above each opposing surface 4.
  • the upper side wall 5 is configured as a reflecting surface having a curved inner side so that the light uniformity of the LED chip 6 can be obtained. Further, vertical lower side walls 7 are formed below both sides of each facing surface 4. A locking groove 8 is formed at the base of the lower side wall 7. By fitting and locking the locking groove 8 and a locking projection 9 formed on the lower frame A, The upper frame body C is coupled. The outer surface of the lower side wall 2 of the lower frame A and the inner surface of the lower side wall 7 of the upper frame C are in contact with each other.
  • Reference numeral 10 in the figure denotes a diffusion cover.
  • the LED substrate B is fixed by the structure shown in this embodiment, after the lower frame A and the upper frame C are coupled, the LED substrate B is inserted into the groove 3 of the lower frame A.
  • the heat generated by the LED chip 6 is conducted to the LED substrate B having thermal conductivity. Since this LED substrate B is sandwiched between the lower frame A and the upper frame C, the lower surface of the LED substrate B is in close contact with the upper surface of the substrate mounting groove 3 of the lower frame A, and both sides of the upper surface of the LED substrate B Is in close contact with the edge of the opposing surface 4 of the upper frame C. Therefore, the heat of the LED substrate B is conducted to the lower frame A and the upper frame C.
  • the lower frame A has a larger contact area with the LED substrate B than the upper frame C, more heat is conducted to the lower frame.
  • the configuration of the lower frame A is the same as that of the first embodiment, and the upper frame C is not provided with an upper side wall.
  • the upper frame body C is formed with lower side walls 7 below both sides of each facing surface 4.
  • the lower side wall 7 is provided with a locking groove 8 for the lower frame A at the base, and the inner surface of the lower side wall 7 is in surface contact with the outer surface of the lower side wall 2 of the lower frame A below the locking groove. .
  • the heat of the LED substrate B is conducted to the upper and lower frames A and C as in the first embodiment. And since the outer surface of the lower side wall 2 of the lower frame A and the inner surface of the lower side wall 7 of the upper frame C are in surface contact, a part of the heat of the lower side wall 2 of the lower frame A passes through the contact surface. The heat is conducted to the lower side wall 7 of the upper frame, and the heat of the lower frame is efficiently radiated through the upper frame.
  • the configuration of the lower frame A is the same as that of the first embodiment, and the upper frame C is not provided with the upper side wall as in the second embodiment.
  • the outer surface of the lower side wall 2 of the lower frame A and the inner surface of the lower side wall 7 of the upper frame C are in contact with each other.
  • the hole 11 is formed in the lower side wall 7 of the upper frame C as a ventilation part. The shape, size, and number of the holes 11 are appropriately determined.
  • the heat of the LED board B is conducted to the upper and lower frames A and C as in the first and second embodiments. And since the hole 11 is formed in the lower side wall 7 of the upper frame C, a part of the heat of each lower side wall 2 is radiated through the hole 11.
  • the heat generated by the LED chip can be radiated from a wide area through the upper and lower two frames. Therefore, the heat generated by the LED chip can be efficiently dissipated, and thus it is industrially utilized as an object of increasing the life of the LED chip and improving the reliability of the LED lighting apparatus.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)

Abstract

To unify a configuration for heat dissipation and a configuration for mounting an LED substrate and to facilitate mounting of the LED substrate while increasing heat dissipation efficiency, the disclosed LED substrate mounting device has a lower frame (A) that has a support surface for the LED substrate (B) and lower side walls (2) at the lower parts in the longitudinal direction thereof on both sides, an upper frame (C) that is affixed to said lower frame (A), and the LED substrate (B) that is disposed on the upper surface of the lower frame (A). Both sides of the LED substrate (B) in the longitudinal direction are clamped by the upper surface of the lower frame (A) and a surface (4) formed on the upper frame (C) facing the upper surface of the lower frame (A). The LED substrate (B) is made to have heat conductivity. Both frames (A) and (C) are configured from good heat conductors and heat generated by the LED chip is dissipated via the frames (A) and (C).

Description

ＬＥＤ基板の取付装置LED board mounting device
　この発明は、LED（発光ダイオード）チップを用いた照明装置における、LED基板の固定装置に関するものである。 The present invention relates to an LED substrate fixing device in an illumination device using an LED (light emitting diode) chip.
　LEDチップを光源とする発光装置において、LEDチップが発生する熱の放熱が大きな課題となっている。特に、LEDを照明装置として使用する場合、その光量の増大が必要とされるが、光量を増大させると発生する熱量も増大する。この熱が放熱されずにLED基板に蓄熱されるとLEDチップの寿命が短縮され、照明装置としての信頼性を得ることも難しい。
　LEDの光量を増大させるためには、その熱を効率よく放熱することが必須の課題となっている。 In a light-emitting device using an LED chip as a light source, heat dissipation from the LED chip is a major issue. In particular, when an LED is used as a lighting device, it is necessary to increase the amount of light. However, when the amount of light is increased, the amount of heat generated increases. If this heat is not dissipated and stored in the LED substrate, the life of the LED chip is shortened and it is difficult to obtain reliability as a lighting device.
In order to increase the light quantity of the LED, it is an indispensable subject to efficiently dissipate the heat.
　このような課題を解決するために、LEDチップを伝熱性のある基板に配設する発明が開示されている（例えば特開２００７－４３１２５号）。
特開２００７－４３１２５号公報 In order to solve such a problem, an invention has been disclosed in which an LED chip is disposed on a thermally conductive substrate (for example, JP-A-2007-43125).
JP 2007-43125 A
　上記発明は、基板の熱を放熱するための手法と共同しなければ効果を上げることが期待できないところ、放熱のための構成が提案されていない。そして、放熱するための構成と基板を固定するための構成とは協同していることが好ましいが、そのようなものは知られていない。 The above-described invention cannot be expected to be effective unless it is combined with a technique for radiating the heat of the substrate. However, no structure for radiating heat has been proposed. And although it is preferable that the structure for radiating heat and the structure for fixing the substrate cooperate, such a thing is not known.
　この発明は、放熱のための構成とLED基板を固定するための構成とを一体化し、LED基板の固定を容易にしつつ、放熱効率を高めることを課題とするものである。 An object of the present invention is to increase the heat radiation efficiency while integrating the structure for heat dissipation and the structure for fixing the LED substrate to facilitate fixing of the LED substrate.
　この発明のLED基板の取付装置は、LED基板の支持面を有しその長手方向両側下方に下部縦壁を有する下部枠体と、この下部枠体に固定される上部枠体と、前記下部枠体の上面に配設されるＬＥＤ基板とで構成する。
　前記LED基板は熱伝導性を有するものとし、前記下部枠体と上部枠体とはLEDチップから発生する熱を放熱するために金属製とし、前記下部枠体の上面と上部枠体の前記対向面とを面接触させると共に、前記LED基板の長手方向両側を前記下部枠体の上面と上部枠体に形成された下部枠体の上面との対向面とで狭持し、前記上部枠体は、下部枠体の上面との対向面の両側下方に下部縦壁を有し、この下部縦壁の内壁と下部枠体の側壁とを面接触させ、もってLEDチップが発生させる熱が前記下部枠体に伝導し下部枠体の側壁から放熱されると共に、下部枠体の側壁から上部枠体の側壁に伝導し上部枠体の側壁から放熱されるようにするものである。
　前記熱伝導性を有するＬＥＤ基板とは、ＬＥＤチップの回路と絶縁を図りつつ金属を埋設した基板など、公知の構成を採用するものであり、その構成に限定はない。
　前記枠体を構成する金属は、アルミ、鉄などの金属を適宜使用することができる。
　請求項２の発明は、前記上部枠体を、下部枠体の上面と対向する面の上方に上部縦壁を有するものとしたものである。
　請求項３の発明は、上部枠体を、下部枠体の上面と対向する面の両側下方に縦壁下部縦壁を有し、この下部縦壁には通気部を設けたものとしたものであり、請求項１ないし３の発明は何れも上部枠体と下部枠体の放熱性を有効に利用しようとするものである。
　請求項４の発明は、上部枠体と下部枠体とはそれぞれの長手方向に形成された溝と凸条との嵌合により固定したものである。 The LED board mounting apparatus according to the present invention includes a lower frame having a supporting surface of the LED board and having lower vertical walls below both sides in the longitudinal direction, an upper frame fixed to the lower frame, and the lower frame. It is comprised with the LED board arrange | positioned on the upper surface of a body.
The LED substrate has thermal conductivity, and the lower frame and the upper frame are made of metal to dissipate heat generated from the LED chip, and the upper surface of the lower frame and the opposite of the upper frame The surface of the LED substrate is sandwiched between opposite surfaces of the upper surface of the lower frame and the upper surface of the lower frame formed on the upper frame, the upper frame is The lower frame has a lower vertical wall below both sides of the surface facing the upper surface of the lower frame, and the inner wall of the lower vertical wall and the side wall of the lower frame are brought into surface contact so that heat generated by the LED chip is generated by the lower frame. The heat is conducted to the body and radiated from the side wall of the lower frame, and is conducted from the side wall of the lower frame to the side wall of the upper frame to be radiated from the side wall of the upper frame.
The LED substrate having thermal conductivity adopts a known configuration such as a substrate in which metal is embedded while insulating the circuit of the LED chip, and the configuration is not limited.
As the metal constituting the frame, a metal such as aluminum or iron can be used as appropriate.
According to a second aspect of the present invention, the upper frame has an upper vertical wall above a surface facing the upper surface of the lower frame.
In the invention of claim 3, the upper frame has a vertical wall lower vertical wall below both sides of the surface facing the upper surface of the lower frame, and a ventilation portion is provided on the lower vertical wall. In addition, any one of the inventions of claims 1 to 3 is intended to effectively utilize the heat dissipation of the upper frame and the lower frame.
According to the invention of claim 4, the upper frame body and the lower frame body are fixed by fitting grooves and ridges formed in the respective longitudinal directions.
　この発明においては、熱伝導性を有するＬＥＤ基板の両側を熱の良導体で構成した下部枠体と上部枠体とで狭持したので、ＬＥＤチップが発生する熱は下部枠体と上部枠体とに伝導し、それぞれの壁面から放熱される。すなわち、ＬＥＤ基板の固定装置が放熱機能を果たすこととなり、しかも下部枠体と上部枠体双方の壁面から放熱されるので、放熱に寄与する面積を増大することができ、効率的な放熱が得られる。
　したがって、ＬＥＤチップの寿命が増大し、照明器具としての信頼性が向上する。 In this invention, since the both sides of the LED substrate having thermal conductivity are sandwiched between the lower frame and the upper frame made of a good heat conductor, the heat generated by the LED chip is generated between the lower frame and the upper frame. And is radiated from each wall surface. That is, the LED board fixing device performs a heat dissipation function, and since heat is radiated from the wall surfaces of both the lower frame and the upper frame, the area contributing to heat dissipation can be increased and efficient heat dissipation can be obtained. It is done.
Therefore, the lifetime of the LED chip is increased, and the reliability as a lighting fixture is improved.
　以下この発明の実施形態を説明する。 Embodiments of the present invention will be described below.
　図１において、天板１の両側に下向きの下部側壁２を連設して構成した下方が開放した長尺の枠体である下部枠体Ａの天板１の上面に、ＬＥＤ基板の厚さに対応する基板装着溝３が設けてあり、この溝３に長尺のＬＥＤ基板Ｂが配設してあり、このＬＥＤ基板Ｂの両側は前記下部枠体Ａの天板１の上面と上部枠体Ｃに形成された天板１との対向面４とで狭持されている。
　前記下部枠体Ａと上部枠体Ｃはいずれもアルミ製（押し出し成形品）であり、ＬＥＤ基板Ｂは熱伝導性のあるものとしてある。そして、ＬＥＤの熱を効率よく両枠体に伝導させるために、ＬＥＤ基板の両側、枠体Ａ、Ｃに狭持される部分に、長手方向に放熱シリコーンなどの熱の良導体を組み入れておくことが好ましい。
　前記上部枠体Ｃは、前記下部枠体Ａと同等の長さの長尺材であり、長手方向に沿って両側に、前記下部枠体Ａの天板１の上面と共同してＬＥＤ基板Ｂを狭持する対向面４が形成してある。この各対向面４は、その内側縁部４ａがＬＥＤ基板Ｂの上面に密着し、その余の部分は天板１の上面に当接している。
　前記各対向面４の上方には上部側壁５が形成してある。この上部側壁５は内側が湾曲した反射面として構成してあり、ＬＥＤチップ６の光均一性を得られるようにしてある。また、前記各対向面４の両側下方には垂直な下部側壁７が形成してある。この下部側壁７の基部には係止溝８が形成してあり、この係止溝８と下部枠体Ａに形成された係止凸条９との嵌合係止によって、下部枠体Ａと上部枠体Ｃとは結合されている。そして、下部枠体Ａの下部側壁２の外面と上部枠体Ｃの下部側壁７の内面とは当接している。
　図中符号１０は拡散カバーである。 In FIG. 1, the thickness of the LED substrate is placed on the top surface of the top plate 1 of the lower frame A, which is a long frame open at the bottom formed by connecting the lower side walls 2 facing downward on both sides of the top plate 1. A board mounting groove 3 corresponding to is provided, and a long LED board B is disposed in the groove 3, and both sides of the LED board B are on the upper surface and the upper frame of the top plate 1 of the lower frame A. It is pinched by the opposing surface 4 with the top plate 1 formed in the body C.
The lower frame A and the upper frame C are both made of aluminum (extruded product), and the LED board B is assumed to be thermally conductive. In order to efficiently conduct the heat of the LED to both frame bodies, a good heat conductor such as heat radiating silicone is incorporated in the longitudinal direction on both sides of the LED substrate and the portions sandwiched between the frame bodies A and C. Is preferred.
The upper frame C is a long material having a length equivalent to that of the lower frame A, and is formed on both sides along the longitudinal direction in cooperation with the upper surface of the top plate 1 of the lower frame A. The opposing surface 4 is formed to hold the gap. Each of the facing surfaces 4 has an inner edge portion 4 a that is in close contact with the upper surface of the LED substrate B, and the remaining portion is in contact with the upper surface of the top plate 1.
An upper side wall 5 is formed above each opposing surface 4. The upper side wall 5 is configured as a reflecting surface having a curved inner side so that the light uniformity of the LED chip 6 can be obtained. Further, vertical lower side walls 7 are formed below both sides of each facing surface 4. A locking groove 8 is formed at the base of the lower side wall 7. By fitting and locking the locking groove 8 and a locking projection 9 formed on the lower frame A, The upper frame body C is coupled. The outer surface of the lower side wall 2 of the lower frame A and the inner surface of the lower side wall 7 of the upper frame C are in contact with each other.
Reference numeral 10 in the figure denotes a diffusion cover.
　この実施例に示す構造によってＬＥＤ基板Ｂを固定する場合、下部枠体Ａと上部枠体Ｃとを結合させた後、下部枠体Ａの溝３にＬＥＤ基板Ｂを挿入する。 When the LED substrate B is fixed by the structure shown in this embodiment, after the lower frame A and the upper frame C are coupled, the LED substrate B is inserted into the groove 3 of the lower frame A.
　この実施例において、ＬＥＤチップ６が発生する熱は、熱伝導性のあるＬＥＤ基板Ｂに伝導する。このＬＥＤ基板Ｂは下部枠体Ａと上部枠体Ｃとで狭持されているので、ＬＥＤ基板Ｂの下面は下部枠体Ａの基板装着溝３の上面に密着し、ＬＥＤ基板Ｂの上面両側は上部枠体Ｃの対向面４の縁部に密着している。したがって、ＬＥＤ基板Ｂの熱は下部枠体Ａ及び上部枠体Ｃに伝導する。
　ここで、下部枠体Ａの方が上部枠体ＣよりもＬＥＤ基板Ｂとの接触面積が大きいので、下部枠体へ伝導する熱量の方が多い。しかし、下部枠体Ａの上面と上部枠体Ｃの対向面両側は当接しているので、下部枠体Ａから上部枠体Ｃに熱が伝導する。その結果、ＬＥＤチップが発生する熱は、下部枠体Ａの下部側壁２の側面及び上部枠体Ｃの上部側壁５及び下部側壁７の側面から放熱される。なお、下部枠体Ａの下部側壁２と上部枠体Ｃの下部側壁７とは当接しているので、下部枠体Ａの下部側壁２から上部枠体Ｃの下部側壁７に熱が伝導し、下部枠体Ａの熱の一部は上部側壁Ｃの下部側壁７から放熱される。 In this embodiment, the heat generated by the LED chip 6 is conducted to the LED substrate B having thermal conductivity. Since this LED substrate B is sandwiched between the lower frame A and the upper frame C, the lower surface of the LED substrate B is in close contact with the upper surface of the substrate mounting groove 3 of the lower frame A, and both sides of the upper surface of the LED substrate B Is in close contact with the edge of the opposing surface 4 of the upper frame C. Therefore, the heat of the LED substrate B is conducted to the lower frame A and the upper frame C.
Here, since the lower frame A has a larger contact area with the LED substrate B than the upper frame C, more heat is conducted to the lower frame. However, since the upper surface of the lower frame A and the opposite sides of the upper frame C are in contact with each other, heat is conducted from the lower frame A to the upper frame C. As a result, the heat generated by the LED chip is dissipated from the side surface of the lower side wall 2 of the lower frame A and the side surfaces of the upper side wall 5 and the lower side wall 7 of the upper frame C. Since the lower side wall 2 of the lower frame A and the lower side wall 7 of the upper frame C are in contact, heat is conducted from the lower side wall 2 of the lower frame A to the lower side wall 7 of the upper frame C, Part of the heat of the lower frame A is radiated from the lower side wall 7 of the upper side wall C.
　図２に示す実施例において、下部枠体Ａの構成は実施例１と同様であり、上部枠体Ｃを上部側壁を備えない態様としたものである。
　図２において、上部枠体Ｃは各対向面４の両側下方に下部側壁７が形成してある。この下部側壁７は基部に下部枠体Ａとの係止溝８が設けてあり、この係止溝の下方においてはその内面と下部枠体Ａの下部側壁２の外面とは面接触している。 In the embodiment shown in FIG. 2, the configuration of the lower frame A is the same as that of the first embodiment, and the upper frame C is not provided with an upper side wall.
In FIG. 2, the upper frame body C is formed with lower side walls 7 below both sides of each facing surface 4. The lower side wall 7 is provided with a locking groove 8 for the lower frame A at the base, and the inner surface of the lower side wall 7 is in surface contact with the outer surface of the lower side wall 2 of the lower frame A below the locking groove. .
　この実施例において、ＬＥＤ基板Ｂの熱が上下の枠体Ａ，Ｃに伝導することは実施例１と同様である。そして、下部枠体Ａの下部側壁２の外面と上部枠体Ｃの下部側壁７の内面とが面接触しているので、下部枠体Ａの下部側壁２の熱の一部は接触面を介して上部枠体の下部側壁７に伝導し、下部枠体の熱は上部枠体を経て効率よく放熱される。 In this embodiment, the heat of the LED substrate B is conducted to the upper and lower frames A and C as in the first embodiment. And since the outer surface of the lower side wall 2 of the lower frame A and the inner surface of the lower side wall 7 of the upper frame C are in surface contact, a part of the heat of the lower side wall 2 of the lower frame A passes through the contact surface. The heat is conducted to the lower side wall 7 of the upper frame, and the heat of the lower frame is efficiently radiated through the upper frame.
　図３に示す実施例において、下部枠体Ａの構成は実施例１と同様であり、実施例２と同様に上部枠体Ｃを上部側壁を備えない態様としたものである。
　図３において、下部枠体Ａの下部側壁２の外面と上部枠体Ｃの下部側壁７の内面とは当接している。そして、上部枠体Ｃの下部側壁７には通気部として穴１１が形成してある。この穴１１の形状、大きさ、数は適宜定めるものとする。 In the embodiment shown in FIG. 3, the configuration of the lower frame A is the same as that of the first embodiment, and the upper frame C is not provided with the upper side wall as in the second embodiment.
In FIG. 3, the outer surface of the lower side wall 2 of the lower frame A and the inner surface of the lower side wall 7 of the upper frame C are in contact with each other. And the hole 11 is formed in the lower side wall 7 of the upper frame C as a ventilation part. The shape, size, and number of the holes 11 are appropriately determined.
　この実施例において、ＬＥＤ基板Ｂの熱が上下の枠体Ａ，Ｃに伝導することは実施例１、２と同様である。そして、上部枠体Ｃの下部側壁７に穴１１が形成してあるので、各下部側壁２の熱の一部は穴１１を経て放熱される。 In this embodiment, the heat of the LED board B is conducted to the upper and lower frames A and C as in the first and second embodiments. And since the hole 11 is formed in the lower side wall 7 of the upper frame C, a part of the heat of each lower side wall 2 is radiated through the hole 11.
　この発明は、ＬＥＤチップが発生する熱を、上下二つの枠体を介して、広い面積から放熱することができる。したがって、ＬＥＤチップが発生する熱を効率よく放熱することができ、もってＬＥＤチップの寿命の増大、ＬＥＤ照明器具の信頼性の向上を図るものとして、産業上利用されるものである。 In the present invention, the heat generated by the LED chip can be radiated from a wide area through the upper and lower two frames. Therefore, the heat generated by the LED chip can be efficiently dissipated, and thus it is industrially utilized as an object of increasing the life of the LED chip and improving the reliability of the LED lighting apparatus.
この発明実施例１の断面図Sectional drawing of this invention Example 1 この発明実施例２の断面図Sectional drawing of this invention Example 2 この発明実施例３の断面図Sectional drawing of this invention Example 3
　Ａ　　下部枠体
　Ｂ　　ＬＥＤ基板
　Ｃ　　上部枠体
　１　　天板
　２　　下部側壁
　３　　基板装着溝
　４　　対向面
　５　　上部側壁
　６　　ＬＥＤチップ
　７　　下部側壁
　８　　溝
　９　　凸条
　１０　拡散カバー
　１１　穴
　 A Lower frame B LED board C Upper frame 1 Top plate 2 Lower side wall 3 Substrate mounting groove 4 Opposing surface 5 Upper side wall 6 LED chip 7 Lower side wall 8 Groove 9 Projection strip 10 Diffusion cover 11 Hole

Claims (4)

  1. LED基板の支持面を有しその長手方向両側下方に下部縦壁を有する下部枠体と、この下部枠体に固定される上部枠体と、前記下部枠体の上面に配設されるＬＥＤ基板とで構成し、
    前記LED基板は熱伝導性を有するものとし、
    前記下部枠体と上部枠体とはLEDチップから発生する熱を放熱するために金属製とし、
    前記下部枠体の上面と上部枠体の前記対向面とを面接触させると共に、前記LED基板の長手方向両側を前記下部枠体の上面と上部枠体に形成された下部枠体の上面との対向面とで狭持し、
    前記上部枠体は、下部枠体の上面との対向面の両側下方に下部縦壁を有し、この下部縦壁の内壁と下部枠体の側壁とを面接触させ、
    もってLEDチップが発生させる熱が前記下部枠体に伝導し下部枠体の側壁から放熱されると共に、下部枠体の側壁から上部枠体の側壁に伝導し上部枠体の側壁から放熱されるようにした、
    LED基板の取付装置。     A lower frame having a supporting surface of the LED substrate and having a lower vertical wall below both sides in the longitudinal direction, an upper frame fixed to the lower frame, and an LED substrate disposed on the upper surface of the lower frame And
    The LED substrate is assumed to have thermal conductivity,
    The lower frame and the upper frame are made of metal to dissipate heat generated from the LED chip,
    The upper surface of the lower frame and the opposed surface of the upper frame are brought into surface contact with each other, and both sides of the LED substrate in the longitudinal direction are formed between the upper surface of the lower frame and the upper surface of the lower frame formed on the upper frame. Hold it with the opposite surface,
    The upper frame has a lower vertical wall below both sides of the surface facing the upper surface of the lower frame, the inner wall of the lower vertical wall and the side wall of the lower frame are in surface contact,
    Thus, the heat generated by the LED chip is conducted to the lower frame and radiated from the side wall of the lower frame, and is conducted from the side wall of the lower frame to the side wall of the upper frame and radiated from the side wall of the upper frame. ,
    LED board mounting device.
  2. 上部枠体は、下部枠体の上面との対向面の上方に上部縦壁を有するものとした、請求項１記載のLED基板の取付装置。 2. The LED substrate mounting apparatus according to claim 1, wherein the upper frame has an upper vertical wall above a surface facing the upper surface of the lower frame.
  3. 上部枠体の下部縦壁には通気部を設けた、請求項１又は２に記載のLED基板の取付装置。 The LED substrate mounting device according to claim 1, wherein a ventilation portion is provided in a lower vertical wall of the upper frame.
  4. 上部枠体と下部枠体とはそれぞれの長手方向に形成された溝と凸条との嵌合により固定した、請求項１ないし３の何れかに記載のLED基板の取付装置。
    　     4. The LED board mounting device according to claim 1, wherein the upper frame body and the lower frame body are fixed by fitting grooves and protrusions formed in respective longitudinal directions.
PCT/JP2010/051792 2009-02-09 2010-02-08 Led substrate mounting device WO2010090314A1 (en)

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