JP6504285B2 - Lighting device - Google Patents

Lighting device Download PDF

Info

Publication number
JP6504285B2
JP6504285B2 JP2018024895A JP2018024895A JP6504285B2 JP 6504285 B2 JP6504285 B2 JP 6504285B2 JP 2018024895 A JP2018024895 A JP 2018024895A JP 2018024895 A JP2018024895 A JP 2018024895A JP 6504285 B2 JP6504285 B2 JP 6504285B2
Authority
JP
Japan
Prior art keywords
heat
transfer sheet
heat transfer
display unit
dissipation member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2018024895A
Other languages
Japanese (ja)
Other versions
JP2018110123A (en
Inventor
孝紀 茂野
孝紀 茂野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Seiki Co Ltd
Original Assignee
Nippon Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Priority to JP2018024895A priority Critical patent/JP6504285B2/en
Publication of JP2018110123A publication Critical patent/JP2018110123A/en
Application granted granted Critical
Publication of JP6504285B2 publication Critical patent/JP6504285B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Description

本発明は、発熱部品を有する表示ユニットから発生する熱を外部に拡散するための放熱部材および伝熱シートを備えた照明装置に関する。   The present invention relates to a heat dissipating member for diffusing heat generated from a display unit having a heat generating component to the outside, and a lighting device including a heat transfer sheet.

従来、発熱部品を有する表示ユニットから発生する熱を外部に拡散するための放熱部材および伝熱シートを備えた照明装置において、伝熱シートの装着忘れや貼付位置のずれを確認できるようにする技術が、特許文献1に開示されている。   In the related art, in a lighting device including a heat dissipation member and a heat transfer sheet for diffusing heat generated from a display unit having a heat generating component to the outside, a technique for enabling confirmation of attachment failure of a heat transfer sheet and displacement of a sticking position. Patent Document 1 discloses this.

特開2006−330587号公報Unexamined-Japanese-Patent No. 2006-330587

しかしながら、特許文献1に開示されている技術は、貼付位置のずれを確認することはできるが、組み付け性において改善の余地があった。   However, the technique disclosed in Patent Document 1 can confirm the displacement of the sticking position, but there is room for improvement in the assemblability.

本発明は、上記実情に鑑みてなされたものであり、伝熱シートの組み付け性がよい放熱部材を備えた照明装置を提供することを目的とする。   This invention is made in view of the said situation, and an object of this invention is to provide the illuminating device provided with the thermal radiation member with the good attachment property of a heat-transfer sheet.

本発明に係る照明装置Aは、
発熱部品21を有する回路基板2と、前記発熱部品21から発生する熱を放散させる放熱部材1と、この放熱部材1と前記回路基板2との間に装着された伝熱シート3と、を備え、
前記放熱部材1は、前記伝熱シート3の装着方向を特定する辺110を有する取付溝11を有し、
前記伝熱シート3は、前記装着方向を特定する辺110に対応する形状を有し、
前記装着方向を特定する辺110は、端部にいくほど幅狭となる凸または凹形状を有する。
The lighting device A according to the present invention is
A circuit board 2 having a heat generating component 21, a heat radiating member 1 for dissipating heat generated from the heat generating component 21, and a heat conductive sheet 3 mounted between the heat radiating member 1 and the circuit substrate 2 ,
The heat dissipation member 1 has a mounting groove 11 having a side 110 for specifying the mounting direction of the heat transfer sheet 3;
The heat transfer sheet 3 have a shape corresponding to the side 110 for specifying the mounting direction,
The side 110 for specifying the mounting direction has a convex or concave shape that narrows toward the end.

本発明によれば、伝熱シートの組み付け性がよい放熱部材を備えた照明装置を提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the illuminating device provided with the thermal radiation member with the good attachment property of a heat-transfer sheet can be provided.

本発明の実施形態に係る照明装置の表示ユニット構成図。The display unit block diagram of the illuminating device which concerns on embodiment of this invention. 本発明の実施形態に係る照明装置の放熱部材の取付溝の上面図およびB−B断面図。The top view and BB sectional drawing of the attachment groove of the thermal radiation member of the illuminating device which concerns on embodiment of this invention. 本発明の実施形態に係る照明装置の放熱部品の取付溝の変形例を示す図。The figure which shows the modification of the attachment groove of the thermal radiation components of the illuminating device which concerns on embodiment of this invention.

以下、添付図面に基づいて、本発明の実施形態を説明する。   Hereinafter, an embodiment of the present invention will be described based on the attached drawings.

本発明に係る照明装置Aは、放熱部材1と、LED(発熱部品)21を実装した表示ユニット2と、伝熱シート3とを備える。   A lighting device A according to the present invention includes a heat dissipation member 1, a display unit 2 on which an LED (heat generating component) 21 is mounted, and a heat transfer sheet 3.

放熱部材1は、例えば、アルミニウムなどの金属を金型鋳造したヒートシンクからなり、表示ユニット2を螺子固定するための螺子孔10と、伝熱シート3を装着するための取付溝11が形成されている。   The heat dissipating member 1 is, for example, a heat sink obtained by die-casting a metal such as aluminum, and is formed with screw holes 10 for screwing the display unit 2 and mounting grooves 11 for mounting the heat transfer sheet 3. There is.

放熱部材1と、表示ユニット2と、伝熱シート3には、それぞれ対応する螺子孔10,20,30を有しており、放熱部材1の取付溝11に伝熱シート3を貼り付けた後、表示ユニットのLED21が実装されている面の裏面を伝熱シート3に重ねて、放熱部材1に表示ユニット2が螺子固定される。このように、伝熱シート3を挟んで表示ユニット2が放熱部材1に螺子固定されることにより、放熱部材1と表示ユニット2とが互いに密着して接触熱抵抗を小さくして効率良く放熱される。   The heat dissipation member 1, the display unit 2, and the heat transfer sheet 3 have screw holes 10, 20 and 30 respectively corresponding thereto, and after the heat transfer sheet 3 is attached to the mounting groove 11 of the heat dissipation member 1. The display unit 2 is screw-fixed to the heat dissipation member 1 by overlapping the back surface of the surface on which the LED 21 of the display unit is mounted on the heat transfer sheet 3. Thus, the display unit 2 is screwed to the heat dissipation member 1 with the heat transfer sheet 3 interposed therebetween, so that the heat dissipation member 1 and the display unit 2 are in close contact with each other to reduce contact thermal resistance and efficiently dissipate heat. Ru.

表示ユニット2は、例えば、LED(Light Emitting Diode)21が実装された回路基板であって、フラットケーブル22を介して電源供給されると、LED21が光輝する配線が形成されている。   The display unit 2 is, for example, a circuit board on which an LED (Light Emitting Diode) 21 is mounted, and when power is supplied via the flat cable 22, a wiring is formed to illuminate the LED 21.

伝熱シート3は、熱伝導性や電気絶縁性に優れたシート状の樹脂からなり、放熱部材1に表示ユニット2を螺子で固定する際に、間に介在することで互いの密着性を高める効果を得るものである。   The heat transfer sheet 3 is made of a sheet-like resin excellent in heat conductivity and electrical insulation, and when the display unit 2 is fixed to the heat dissipation member 1 with a screw, the heat transfer sheet 3 is interposed between the heat transfer sheets 3 to improve the mutual adhesion. Get the effect.

放熱部材1の取付溝11は、図2(a)に示すように、端部にいくほど幅狭となる案内辺110を有する溝が形成されている。また、伝熱シート3は、この案内辺110に対応する形状を有し、伝熱シート3をこの取付溝11の案内辺110に沿わせて、取付溝11に装着される。   As shown in FIG. 2A, the mounting groove 11 of the heat dissipation member 1 is formed with a groove having a guide side 110 whose width becomes narrower toward the end. The heat transfer sheet 3 has a shape corresponding to the guide side 110, and is attached to the mounting groove 11 with the heat transfer sheet 3 along the guide side 110 of the mounting groove 11.

このように構成することで、伝熱シート3が取付溝11に案内されて、放熱部材1の適切な位置に貼り付けることができる。   By configuring in this manner, the heat transfer sheet 3 can be guided by the mounting groove 11 and attached to the heat dissipation member 1 at an appropriate position.

また、放熱部材1の取付溝11は、図2(b)に示すように、端部にいくほど溝が深くなるような緩やかな傾斜溝とすることで、伝熱シート3が案内辺110に案内されやすくなる。   Further, as shown in FIG. 2 (b), the heat transfer sheet 3 is attached to the guide side 110 by forming the attachment groove 11 of the heat dissipation member 1 as a gently inclined groove in which the groove becomes deeper as it goes to the end. It becomes easy to be guided.

また、案内辺110は、図3に示すように、端部にいくほど幅狭となる中心線Cで対称な形状(図3の(a))や、中心線Cで対称な凹形状(図3の(b))や、中心線Cで対称な凸形状(図3の(c))などの変形をしてもよい。
図3の形状は、それぞれ案内辺110へ伝熱シート3を沿わせると、案内溝11の中央に伝熱シート3が案内される。
Further, as shown in FIG. 3, the guide side 110 has a symmetrical shape (FIG. 3 (a)) at the center line C whose width becomes narrower toward the end (FIG. 3) or a concave shape symmetrical at the center line C (FIG. 3 (b) or convex shapes symmetrical with respect to the center line C ((c) in FIG. 3) may be modified.
In the shape of FIG. 3, when the heat transfer sheet 3 is placed along the guide side 110, the heat transfer sheet 3 is guided to the center of the guide groove 11.

上述した照明装置Aは、例えば、表示ユニット2が照射する光を背面に受けて画素単位で透過/不透過する液晶パネルと組み合わせた液晶照明装置に適用することができる。
また、照明装置Aは、放熱部材1の一部が露出するように表示ユニット2を覆う筐体を備えて、表示ユニット2は発する熱を放熱部材1によって筐体外に放散する構成としてもよい
The above-described lighting device A can be applied to, for example, a liquid crystal lighting device combined with a liquid crystal panel that receives light emitted by the display unit 2 on the back surface and transmits or does not transmit light in pixel units.
In addition, the lighting device A may include a housing that covers the display unit 2 so that a part of the heat dissipation member 1 is exposed, and the display unit 2 may be configured to dissipate the heat generated outside the housing by the heat dissipation member 1

以上の説明では、本発明の理解を容易にするために、重要でない公知の技術的事項の説明を適宜省略した。   In the above description, in order to facilitate the understanding of the present invention, the description of the unimportant well-known technical matters is appropriately omitted.

A :照明装置
1 :放熱部材
10 :螺子孔
11 :取付溝
110 :案内辺
2 :表示ユニット
20 :螺子孔
21 :LED(発熱部品)
22 :フラットケーブル
3 :伝熱シート
30 :螺子孔
C :中心線
A: Lighting device 1: Heat dissipation member 10: Screw hole 11: Mounting groove 110: Guide side 2: Display unit 20: Screw hole 21: LED (heat-generating component)
22: Flat cable 3: Heat transfer sheet 30: Screw hole C: Center line

Claims (1)

発熱部品を有する回路基板と、前記発熱部品から発生する熱を放散させる放熱部材と、この放熱部材と前記回路基板との間に装着された伝熱シートと、を備え、
前記放熱部材は、前記伝熱シートの装着方向を特定する辺を有する取付溝を有し、
前記伝熱シートは、前記装着方向を特定する辺に対応する形状を有し、
前記装着方向を特定する辺は、端部にいくほど幅狭となる凸または凹形状を有する
ことを特徴とする照明装置。
A circuit board having a heat generating component, a heat radiating member for dissipating heat generated from the heat generating component, and a heat transfer sheet mounted between the heat radiating member and the circuit substrate.
The heat dissipation member has a mounting groove having a side that specifies the mounting direction of the heat transfer sheet,
The heat transfer sheet have a shape corresponding to the side for identifying the mounting direction,
The illumination device according to claim 1, wherein the side that specifies the mounting direction has a convex or concave shape that narrows toward the end .
JP2018024895A 2018-02-15 2018-02-15 Lighting device Active JP6504285B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018024895A JP6504285B2 (en) 2018-02-15 2018-02-15 Lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018024895A JP6504285B2 (en) 2018-02-15 2018-02-15 Lighting device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2014145513A Division JP6300023B2 (en) 2014-07-16 2014-07-16 Lighting device

Publications (2)

Publication Number Publication Date
JP2018110123A JP2018110123A (en) 2018-07-12
JP6504285B2 true JP6504285B2 (en) 2019-04-24

Family

ID=62844699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018024895A Active JP6504285B2 (en) 2018-02-15 2018-02-15 Lighting device

Country Status (1)

Country Link
JP (1) JP6504285B2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5285417B2 (en) * 2008-12-22 2013-09-11 パナソニック株式会社 Lighting device
JP4828639B2 (en) * 2010-02-08 2011-11-30 シャープ株式会社 Lighting device

Also Published As

Publication number Publication date
JP2018110123A (en) 2018-07-12

Similar Documents

Publication Publication Date Title
JP4757174B2 (en) Backlight unit
TWI307799B (en) Backlight module
US20070258214A1 (en) Heat-Dissipating Device with Tapered Fins
JP5537833B2 (en) lighting equipment
JP6594895B2 (en) Light source unit and lighting device
JP2009302186A (en) Light emitting device
JP4826737B2 (en) LED display system
JP6380759B2 (en) lighting equipment
JP5500971B2 (en) Light source module and lighting device
JP6504285B2 (en) Lighting device
JP2011076946A (en) Light emitting device
JP4779035B2 (en) Lighting equipment
JP6566189B2 (en) lighting equipment
JP5693482B2 (en) Heat sink and lighting device
KR102103728B1 (en) An LED in which a radiating fin is directly attached to a metal PCB
JP6300023B2 (en) Lighting device
JP2014130777A (en) Lighting device
JP2013232301A (en) Heat radiation structure, and lighting fixture
JP2017135209A (en) Multilayer substrate and electronic circuit board
JP2010055939A (en) Light source unit and lighting fixture
US20140347855A1 (en) Led luminaire
KR20150073428A (en) Radiant heat device attached circuit of LED module
TWM525421U (en) Light emitting device
JP2018120762A (en) Lighting apparatus
TWM528468U (en) Light emitting keyboard with heat dissipation function

Legal Events

Date Code Title Description
A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20181218

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20181219

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20181225

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20190226

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20190311

R150 Certificate of patent or registration of utility model

Ref document number: 6504285

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150