JP5772208B2

JP5772208B2 - Electronic device and projector

Info

Publication number: JP5772208B2
Application number: JP2011110907A
Authority: JP
Inventors: 義則橋本; 柳原　弘和; 弘和柳原; 誠下村
Original assignee: Seiko Epson Corp
Current assignee: Seiko Epson Corp
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2015-09-02
Anticipated expiration: 2031-05-18
Also published as: JP2012243881A

Description

本発明は、電子機器、及びプロジェクターに関する。 The present invention relates to an electronic device and a projector.

従来、プロジェクターの電源装置において、当該電源装置の部品を適切に冷却するための検討がなされている（例えば、特許文献１参照）。
この特許文献１に記載の電源装置では、電源筐体内の冷却ファンから送出される空気の経路上や、熱を発生する電子部品の近傍、あるいは上昇した熱により温められる電源筐体の上部に設置された温度センサーで、電源装置の電源筐体内の温度を検出している。そして、この検出された温度に基づいて、冷却ファンの回転数を制御している。 2. Description of the Related Art Conventionally, studies have been made to appropriately cool components of a power supply device of a projector (for example, see Patent Document 1).
In the power supply device described in Patent Document 1, it is installed on a path of air sent from a cooling fan in a power supply casing, in the vicinity of an electronic component that generates heat, or on an upper portion of a power supply casing that is heated by increased heat. The temperature sensor detects the temperature in the power supply housing of the power supply device. And based on this detected temperature, the rotation speed of a cooling fan is controlled.

特開２０１０−１６１８９０号公報JP 2010-161890 A

しかしながら、特許文献１に記載の電源装置のように、電子部品の近傍に温度センサーを配置すると、温度センサーが絶縁破壊してしまうおそれがある。また、空気の経路上や電源筐体上部に温度センサーを配置すると、当該温度センサーで検出された温度には、温度検出対象以外の電子部品の熱の影響も含まれてしまう。このことにより、温度検出対象の電子部品の温度を適切に検出できない。 However, if a temperature sensor is arranged in the vicinity of an electronic component as in the power supply device described in Patent Document 1, the temperature sensor may break down. Further, when a temperature sensor is arranged on the air path or on the upper part of the power supply housing, the temperature detected by the temperature sensor includes the influence of heat of electronic components other than the temperature detection target. As a result, the temperature of the temperature detection target electronic component cannot be detected appropriately.

本発明の目的は、温度検出対象の電子部品の温度を適切に検出可能な電子機器、及びプロジェクターを提供することにある。 The objective of this invention is providing the electronic device and projector which can detect the temperature of the electronic component of temperature detection object appropriately.

本発明の電子機器は、機器筐体と、前記機器筐体内に設けられた複数の電子部品と、前記複数の電子部品のうち温度検出対象の電子部品の温度を検出する温度検出部と、前記温度検出部を支持する支持部とを備え、前記機器筐体内には、前記複数の電子部品を冷却するように空気を導く主流路が形成され、前記支持部は、前記温度検出部を支持する第１支持板部と、前記第１支持板部と対向する第２支持板部と、前記第１支持板部と前記第２支持板部とを保持する支持板保持部と、前記第１支持板部と前記第２支持板部と前記支持板保持部とで囲まれた空間により構成され、前記主流路の前記温度検出対象の電子部品を介した空気の一部を取り込む副流路と、を有することを特徴とする。 The electronic device of the present invention includes a device housing, a plurality of electronic components provided in the device housing, a temperature detection unit that detects a temperature of an electronic component that is a temperature detection target among the plurality of electronic components, A main flow path for guiding air to cool the plurality of electronic components, and the support section supports the temperature detection section. A first support plate portion; a second support plate portion facing the first support plate portion; a support plate holding portion holding the first support plate portion and the second support plate portion; and the first support. A sub-flow passage configured by a space surrounded by a plate portion, the second support plate portion, and the support plate holding portion, and taking in a part of air via the temperature detection target electronic component of the main flow passage ; It is characterized by having .

本発明の電子機器では、複数の電子部品が設けられた機器筐体内に、当該複数の電子部品を冷却するように空気を導く主流路を設けている。さらに、複数の電子部品のうち温度検出対象の電子部品（以下、検出対象部品という）の温度を検出する温度検出部を、支持部で支持させている。そして、支持部に、主流路の検出対象部品を介した空気の一部を取り込む副流路を形成している。
ここで、主流路の検出対象部品を介した空気は、検出対象部品により温められる。このことにより、検出対象部品で温められた直後の空気（以下、被加温空気という）の一部を副流路に取り込み、当該被加温空気の温度を温度検出部で検出することで、検出対象部品のみの温度を適切に検出できる。また、検出対象部品の近傍に温度検出部を配置していないので、温度検出部が絶縁破壊することを防止できる。
また、第１支持板部と第２支持板部と支持板保持部とで囲まれた空間により副流路を構成しているため、簡単な構成で副流路を設けることができる。 In the electronic device of the present invention, a main flow path for introducing air is provided in an apparatus housing provided with a plurality of electronic components so as to cool the plurality of electronic components. Furthermore, a temperature detection unit that detects the temperature of an electronic component that is a temperature detection target (hereinafter referred to as a detection target component) among the plurality of electronic components is supported by the support unit. And the subflow path which takes in a part of air via the detection object components of the main flow path is formed in the support part.
Here, the air through the detection target component of the main flow path is heated by the detection target component. In this way, a part of the air immediately after being heated by the detection target component (hereinafter referred to as heated air) is taken into the sub-flow channel, and the temperature of the heated air is detected by the temperature detection unit. The temperature of only the detection target component can be detected appropriately. Moreover, since the temperature detection part is not arrange | positioned in the vicinity of components to be detected, it is possible to prevent the temperature detection part from breaking down.
In addition, since the sub flow path is configured by the space surrounded by the first support plate section, the second support plate section, and the support plate holding section, the sub flow path can be provided with a simple configuration.

本発明の電子機器では、前記支持部には、前記温度検出部で温度が検出された後の空気を、前記副流路の外部へ導く副流路空気導出部が設けられていることが好ましい。
ここで、副流路空気導出部を設けない場合、温度が検出された後の空気（以下、温度検出後空気という）と被加温空気とが、副流路内で混ざってしまい、検出対象部品の温度を適切に検出できないおそれがある。
これに対して、本発明では、副流路空気導出部を設けて、温度検出後空気を副流路の外部に導くことで、温度検出後空気と、新たに副流路内に導かれる被加温空気とが副流路内で混ざることを防止でき、検出対象部品の温度を適切に検出できる。 In the electronic device according to the aspect of the invention, it is preferable that the support portion is provided with a sub-channel air deriving unit that guides air after the temperature is detected by the temperature detection unit to the outside of the sub-channel. .
Here, when the sub-flow channel air deriving unit is not provided, the air after the temperature is detected (hereinafter referred to as air after temperature detection) and the heated air are mixed in the sub-flow channel, and the detection target There is a possibility that the temperature of the component cannot be detected properly.
On the other hand, in the present invention, the sub-channel air deriving unit is provided to guide the temperature-detected air to the outside of the sub-channel, so that the temperature-detected air is newly introduced into the sub-channel. It is possible to prevent the heated air from being mixed in the sub-flow channel, and to appropriately detect the temperature of the detection target component.

本発明の電子機器では、前記副流路空気導出部は、前記温度検出部で温度が検出された後の空気を前記主流路に再度導くことが好ましい。
本発明では、温度検出後空気を主流路に再度導くことで、温度検出後空気を主流路に導かないときと比べて、主流路の空気の量を増やすことができ、検出非対象部品の冷却効率を向上できる。 In the electronic device according to the aspect of the invention, it is preferable that the sub-channel air deriving unit guides the air after the temperature is detected by the temperature detecting unit to the main channel again.
In the present invention, the amount of air in the main flow path can be increased by guiding the temperature-detected air again to the main flow path, compared to the case where the air after temperature detection is not guided to the main flow path. Efficiency can be improved.

本発明の電子機器では、前記機器筐体には、互いに略直交する第１面部及び第２面部が設けられ、前記第１面部には、前記第１支持板部の平面形状に対応する形状の切欠部が設けられ、前記第２面部には、前記第１支持板部及び前記第２支持板部を前記第１支持板部の面方向に沿って挿通可能な挿通開口部が設けられ、前記第１支持板部における当該第１支持板部の挿通方向と平行な両側縁には、前記切欠部の縁との係合により前記支持部を前記挿通方向に案内して、前記支持部を前記機器筐体に取り付ける取付案内部が設けられていることが好ましい。
本発明では、第１支持板部の取付案内部と、切欠部の縁とを係合させて、支持部を第１支持板部の挿通方向に沿って案内するだけの簡単な方法で、支持部を機器筐体に取り付けることができる。また、温度検出部を支持する第１支持板部に、取付案内部を設けているため、部品点数の増加を抑制できる。 In the electronic device of the present invention, the device housing is provided with a first surface portion and a second surface portion that are substantially orthogonal to each other, and the first surface portion has a shape corresponding to the planar shape of the first support plate portion. A notch is provided, and the second surface is provided with an insertion opening through which the first support plate and the second support plate can be inserted along the surface direction of the first support plate. On both side edges parallel to the insertion direction of the first support plate portion in the first support plate portion, the support portion is guided in the insertion direction by engagement with the edge of the notch portion, and the support portion is It is preferable that an attachment guide portion to be attached to the device housing is provided.
In the present invention, the mounting guide part of the first support plate part and the edge of the notch part are engaged with each other, and the support part is supported by a simple method just by guiding the support part along the insertion direction of the first support plate part. Can be attached to the device housing. Moreover, since the attachment guide part is provided in the 1st support plate part which supports a temperature detection part, the increase in a number of parts can be suppressed.

本発明の電子機器は、電源コネクターを介して供給された電力を外部に供給する電源基板を備え、前記複数の電子部品は、前記電源基板に搭載され、当該電子機器は、電源装置であることが好ましい。
本発明では、上述した作用及び効果を享受可能な電源装置を提供できる。 The electronic device of the present invention includes a power supply board that supplies power supplied via a power connector to the outside, and the plurality of electronic components are mounted on the power supply board, and the electronic apparatus is a power supply device. Is preferred.
In the present invention, it is possible to provide a power supply device that can enjoy the functions and effects described above.

本発明のプロジェクターは、光源装置と、前記光源装置から射出された光束を変調する光変調装置と、前記光変調装置にて変調された光束を投射する投射光学装置と、上述の電子機器とを備えたことを特徴とする。
本発明では、プロジェクターは、上述した電子機器である電源装置を備えるので、上述した電源装置と同様の作用及び効果を享受できる。 A projector according to the present invention includes a light source device, a light modulation device that modulates a light beam emitted from the light source device, a projection optical device that projects a light beam modulated by the light modulation device, and the electronic apparatus described above. It is characterized by having.
In the present invention, since the projector includes the power supply device that is the electronic device described above, the projector can enjoy the same operations and effects as the power supply device described above.

本実施形態におけるプロジェクターを模式的に示す図。FIG. 2 is a diagram schematically illustrating a projector according to an embodiment. 前記実施形態における電源装置の前面側からの斜視図。The perspective view from the front side of the power supply device in the embodiment. 前記実施形態における電源装置の後面側からの斜視図。The perspective view from the rear surface side of the power supply device in the embodiment. 前記実施形態における電源装置の前面側からの分解斜視図。The disassembled perspective view from the front side of the power supply device in the embodiment. 前記実施形態における電源基板の前面側からの斜視図。The perspective view from the front side of the power supply board in the said embodiment. 前記実施形態における図２のVI−VI線に沿った断面図。Sectional drawing along the VI-VI line of FIG. 2 in the said embodiment.

以下、本発明の一実施形態を図面に基づいて説明する。
〔プロジェクターの構成〕
図１は、プロジェクター１の概略構成を示す図である。
プロジェクター１は、画像を投射してスクリーン（図示略）上に投影画像を表示する。
そして、このプロジェクター１は、図１に示すように、外装筐体２内部に収納される光学ユニット３と、電子機器としての電源装置４と、電源コネクター９と、プロジェクター１の各構成部材の動作を制御する制御装置（図示略）等を備える。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[Configuration of projector]
FIG. 1 is a diagram illustrating a schematic configuration of the projector 1.
The projector 1 projects an image and displays a projected image on a screen (not shown).
As shown in FIG. 1, the projector 1 includes an optical unit 3 housed in the exterior housing 2, a power supply device 4 as an electronic device, a power supply connector 9, and operations of the constituent members of the projector 1. A control device (not shown) or the like is provided.

〔光学ユニットの構成〕
光学ユニット３は、図１に示すように、発光管３１１及びリフレクター３１２を有する光源装置３１と、レンズアレイ３２１，３２２、偏光変換素子３２３、及び重畳レンズ３２４を有する照明光学装置３２と、ダイクロイックミラー３３１，３３２、及び反射ミラー３３３を有する色分離光学装置３３と、入射側レンズ３４１、リレーレンズ３４２、及び反射ミラー３４３，３４４を有するリレー光学装置３４と、３つの入射側偏光板３５と、３つの光変調装置３６と、３つの出射側偏光板３７と、色合成光学装置としてのクロスダイクロイックプリズム３８と、投射光学装置としての投射レンズ３９とを備える。 [Configuration of optical unit]
As shown in FIG. 1, the optical unit 3 includes a light source device 31 having an arc tube 311 and a reflector 312, an illumination optical device 32 having lens arrays 321, 322, a polarization conversion element 323, and a superimposing lens 324, and a dichroic mirror. 331, 332, a color separation optical device 33 having a reflection mirror 333, an incident side lens 341, a relay lens 342, a relay optical device 34 having reflection mirrors 343, 344, three incident side polarizing plates 35, 3 Two light modulation devices 36, three emission-side polarizing plates 37, a cross dichroic prism 38 as a color synthesis optical device, and a projection lens 39 as a projection optical device.

そして、光学ユニット３では、上述した構成により、光源装置３１から出射され照明光学装置３２を介した光束は、色分離光学装置３３にて赤（Ｒ）、緑（Ｇ）、青（Ｂ）の３つの色光に分離される。また、分離された各色光は、各光変調装置３６にてそれぞれ変調される。変調された各色光は、クロスダイクロイックプリズム３８にて合成されて画像となり、投射レンズ３９にてスクリーンに投射される。
なお、各部材３１〜３９については、一般的なプロジェクターの光学系として用いられるものであるため、説明を省略する。 In the optical unit 3, with the configuration described above, the light beam emitted from the light source device 31 and passing through the illumination optical device 32 is red (R), green (G), and blue (B) by the color separation optical device 33. Separated into three colored lights. Each separated color light is modulated by each light modulator 36. The modulated color lights are combined by the cross dichroic prism 38 to form an image and projected onto the screen by the projection lens 39.
Note that the members 31 to 39 are used as an optical system of a general projector, and thus description thereof is omitted.

〔電源装置の構成〕
図２は、電源装置４の前面側からの斜視図である。図３は、電源装置４の後面側からの斜視図である。図４は、電源装置４の前面側からの分解斜視図である。図５は、電力供給部６の前面側からの斜視図である。図６は、図２のVI−VI線に沿った断面図である。
なお、以下で記載する「上」、「下」、「左」、「右」は、図２における図面視において、上下左右に相当するものである。また、以下で説明する「前面」、「背面」も、図２における図面視において、前面および背面に相当するものである。 [Configuration of power supply unit]
FIG. 2 is a perspective view of the power supply device 4 from the front side. FIG. 3 is a perspective view from the rear surface side of the power supply device 4. FIG. 4 is an exploded perspective view from the front side of the power supply device 4. FIG. 5 is a perspective view of the power supply unit 6 from the front side. 6 is a cross-sectional view taken along line VI-VI in FIG.
Note that “upper”, “lower”, “left”, and “right” described below correspond to up, down, left, and right in the drawing view of FIG. Further, “front” and “back” described below correspond to the front and back in the drawing view of FIG.

まず、電源装置４の概略構成について、図２及び図３を参照して説明する。
電源装置４は、電源コネクター９（図１参照）を介して外部から供給される交流電流に対して、ＡＣ／ＤＣ変換を実施し、所定の直流電圧を生成して、プロジェクター１の各部材に出力する。この電源装置４は、図２に示すように、機器筐体としての略長方形箱状の電源筐体５と、この電源筐体５内に設けられた電力供給部６と、この電力供給部６に設けられた後述する複数の電子部品６２（図５，６参照）のうち温度検出対象の電子部品（以下、検出対象部品６２０（図５，６参照）と称す）の温度を検出する温度検出部７と、この温度検出部７を支持するとともに電源筐体５に取り付けられる支持部８とを備える。 First, a schematic configuration of the power supply device 4 will be described with reference to FIGS. 2 and 3.
The power supply device 4 performs AC / DC conversion on an alternating current supplied from the outside via a power supply connector 9 (see FIG. 1), generates a predetermined direct current voltage, and supplies each member of the projector 1 Output. As shown in FIG. 2, the power supply device 4 includes a power supply case 5 having a substantially rectangular box shape as a device case, a power supply unit 6 provided in the power supply case 5, and the power supply unit 6. Temperature detection for detecting the temperature of a temperature detection target electronic component (hereinafter referred to as a detection target component 620 (see FIGS. 5 and 6)) among a plurality of electronic components 62 (see FIGS. 5 and 6) provided later in FIG. And a support portion 8 that supports the temperature detection portion 7 and is attached to the power supply housing 5.

電源筐体５は、断面略コ字状の筐体基部５１と、当該筐体基部５１の略コ字状の一部を塞ぐように筐体基部５１に取り付けられる右背面部５２とにより、略長方形筒状に形成されている。
筐体基部５１は、金属板により形成され、電源筐体５の前面を構成する前面部５１１と、上面を構成する第１面部としての上面部５１２と、下面を構成する下面部５１３とを備える。また、筐体基部５１には、前面部５１１、上面部５１２、及び下面部５１３の内面を覆うように絶縁シート５３が設けられている。
右背面部５２は、樹脂により形成され、電源筐体５の背面のうち右側部分を閉塞するように設けられている。 The power supply housing 5 is substantially composed of a housing base 51 having a substantially U-shaped cross section and a right rear surface 52 attached to the housing base 51 so as to close a part of the substantially U-shaped portion of the housing base 51. It is formed in a rectangular cylindrical shape.
The housing base 51 is formed of a metal plate and includes a front surface portion 511 that constitutes the front surface of the power supply housing 5, an upper surface portion 512 that serves as a first surface portion that constitutes an upper surface, and a lower surface portion 513 that constitutes a lower surface. . The housing base 51 is provided with an insulating sheet 53 so as to cover the inner surfaces of the front surface portion 511, the upper surface portion 512, and the lower surface portion 513.
The right back surface portion 52 is formed of resin and is provided so as to close the right side portion of the back surface of the power supply housing 5.

また、電源筐体５の右面は、開口されており、電源筐体５外の空気を電源筐体５内に導入する吸気口５４として機能する。さらに、電源筐体５の背面のうち右背面部５２で閉塞されていない左側部分は、支持部８の第１支持板部８６及び第２支持板部８７を第１支持板部８６の面方向に沿って挿通可能な挿通開口部５５を構成している。ここで、右背面部５２と挿通開口部５５とにより、本発明の第２面部が構成されている。 The right side of the power supply housing 5 is opened and functions as an air inlet 54 for introducing air outside the power supply housing 5 into the power supply housing 5. Further, the left side portion of the back surface of the power supply housing 5 that is not closed by the right back surface portion 52 has the first support plate portion 86 and the second support plate portion 87 of the support portion 8 in the surface direction of the first support plate portion 86. The insertion opening part 55 which can be inserted along is comprised. Here, the second rear surface portion of the present invention is constituted by the right rear surface portion 52 and the insertion opening portion 55.

支持部８は、樹脂により形成されており、図３にも示すように、支持板保持部８１を備える。この支持板保持部８１は、背面左側に位置する略円筒状のファン配置部８２と、このファン配置部８２から右側に向けて略平板状に延びる中央平面部８３とを備える。
ファン配置部８２の背面側の開口部は、蓋部８４により閉塞されている。そして、ファン配置部８２及び蓋部８４は、電源筐体５内の空気を外部に排出する排気部８５を構成している。すなわち、図３に示すように、排気部８５の左側面には、排気部８５内部と外部とを連通する排気口８５１が開口形成されている。また、排気部８５内には、電源筐体５内の空気を吸い込んで排気口８５１を介して外部に排出するシロッコファン１０が設けられている。
また、中央平面部８３には、前面側に延びる略板状の第１支持板部８６と、この第１支持板部８６と対向するように延びる略板状の第２支持板部８７とを備える。
そして、電源筐体５と支持部８とで形成された略長方形筒状の左面は、樹脂製の左面部５６により閉塞されている。
このように、金属製の筐体基部５１の内面に設けられた絶縁シート５３と、それぞれ樹脂製の右背面部５２、左面部５６、及び支持部８とにより囲まれる空間に、電源コネクター９を介して供給された電力を外部に供給する電力供給部６が配置されている。 The support portion 8 is made of resin and includes a support plate holding portion 81 as shown in FIG. The support plate holding portion 81 includes a substantially cylindrical fan arrangement portion 82 located on the left side of the back surface, and a central plane portion 83 extending from the fan arrangement portion 82 toward the right side in a substantially flat plate shape.
The opening on the back side of the fan arrangement portion 82 is closed by the lid portion 84. And the fan arrangement | positioning part 82 and the cover part 84 comprise the exhaust part 85 which discharges | emits the air in the power supply housing | casing 5 outside. That is, as shown in FIG. 3, an exhaust port 851 that communicates the inside of the exhaust unit 85 and the outside is formed in the left side surface of the exhaust unit 85. In the exhaust portion 85, there is provided a sirocco fan 10 that sucks the air in the power supply housing 5 and discharges it to the outside through the exhaust port 851.
Further, the central plane portion 83 includes a substantially plate-like first support plate portion 86 extending to the front surface side and a substantially plate-like second support plate portion 87 extending so as to face the first support plate portion 86. Prepare.
The substantially rectangular cylindrical left surface formed by the power supply housing 5 and the support portion 8 is closed by a resin left surface portion 56.
In this way, the power connector 9 is placed in the space surrounded by the insulating sheet 53 provided on the inner surface of the metal housing base 51 and the right rear surface portion 52, the left surface portion 56, and the support portion 8 each made of resin. A power supply unit 6 that supplies the power supplied via the outside is disposed.

次に、電源装置４の詳細構成について、図４、図５、及び図６を参照して説明する。
筐体基部５１の上面部５１２の左右方向略中央には、図４に示すように、前面部５１１側に向けて矩形状に切り欠かれた切欠部５１４が設けられている。この切欠部５１４は、第１支持板部８６の平面形状（上面視の形状）に対応する形状に形成されている。また、前面部５１１の内面側には、絶縁シート５３を間に挟んで、電力供給部６の電源基板６０が取り付けられている。
この電源基板６０の一面には、図５に示すように、電源筐体５の背面側に向けて略板状に延びる放熱板６１が設けられている。そして、この放熱板６１の上面には、６個の電子部品６２が、前後方向に並んで配置されている。
ここで、６個の電子部品６２のうち、右から３番目の電子部品６２は、温度検出部７での温度検出の対象である検出対象部品６２０であり、他の電子部品６２は、右から順に、温度検出の対象で無い検出非対象部品６２１，６２２，６２３，６２４，６２５である。 Next, a detailed configuration of the power supply device 4 will be described with reference to FIGS. 4, 5, and 6.
As shown in FIG. 4, a cutout portion 514 that is cut out in a rectangular shape toward the front surface portion 511 side is provided at approximately the center in the left-right direction of the upper surface portion 512 of the housing base portion 51. The notch 514 is formed in a shape corresponding to the planar shape (top view shape) of the first support plate portion 86. A power supply substrate 60 of the power supply unit 6 is attached to the inner surface side of the front surface part 511 with an insulating sheet 53 interposed therebetween.
As shown in FIG. 5, a heat radiating plate 61 extending in a substantially plate shape toward the back side of the power supply housing 5 is provided on one surface of the power supply substrate 60. And on the upper surface of this heat sink 61, the six electronic components 62 are arrange | positioned along with the front-back direction.
Here, among the six electronic components 62, the third electronic component 62 from the right is a detection target component 620 that is a target of temperature detection by the temperature detection unit 7, and the other electronic components 62 are from the right. The detection non-target components 621, 622, 623, 624, and 625 that are not the targets of temperature detection are in order.

また、図４及び図６に示すように、支持部８を構成する第１支持板部８６は、中央平面部８３の上端側から前面側に向けて延びるように設けられている。一方、第２支持板部８７は、この第１支持板部８６の下側において、第１支持板部８６と略平行に延びるように設けられている。 As shown in FIGS. 4 and 6, the first support plate portion 86 constituting the support portion 8 is provided so as to extend from the upper end side of the central plane portion 83 toward the front side. On the other hand, the second support plate portion 87 is provided below the first support plate portion 86 so as to extend substantially parallel to the first support plate portion 86.

第１支持板部８６は、長方形板状の支持板中央部８６１を備える。この支持板中央部８６１における左右方向略中央よりも若干左側には、嵌合開口部８６２が開口形成されている。また、支持板中央部８６１の右端には、右斜め下方向に延びる右傾斜部８６３が設けられ、左端には、左斜め下方向に延びる左傾斜部８６４が設けられている。さらに、右傾斜部８６３の延出方向先端には、右側に開口する断面略コ字状の右取付案内部８６５が設けられ、左傾斜部８６４の延出方向先端には、左側に開口する断面略コ字状の左取付案内部８６６が設けられている。
なお、右取付案内部８６５及び左取付案内部８６６の略コ字状をそれぞれ構成する上下の板状部分は、前後方向の長さ寸法が、支持板中央部８６１、右傾斜部８６３、及び左傾斜部８６４の長さ寸法よりも大きく設定されている。 The first support plate portion 86 includes a rectangular plate-like support plate central portion 861. A fitting opening 862 is formed on the left side of the support plate central portion 861 slightly to the left of the substantially central portion in the left-right direction. In addition, a right inclined portion 863 extending diagonally downward to the right is provided at the right end of the support plate central portion 861, and a left inclined portion 864 extending diagonally downward to the left is provided at the left end. Further, a right mounting guide portion 865 having a substantially U-shaped cross section that opens to the right is provided at the front end in the extending direction of the right inclined portion 863, and a cross section that opens to the left at the front end in the extending direction of the left inclined portion 864. A substantially U-shaped left mounting guide portion 866 is provided.
Note that the upper and lower plate-shaped portions constituting the substantially U-shape of the right mounting guide portion 865 and the left mounting guide portion 866 have longitudinal dimensions in the longitudinal direction of the support plate center portion 861, the right inclined portion 863, and the left side. It is set larger than the length dimension of the inclined portion 864.

第２支持板部８７は、支持板中央部８６１の下方に設けられている。この第２支持板部８７の前後方向の長さ寸法は、右取付案内部８６５及び左取付案内部８６６と略等しく設定され、左右方向の長さ寸法は、支持板中央部８６１よりも若干小さく設定されている。 The second support plate portion 87 is provided below the support plate central portion 861. The length dimension in the front-rear direction of the second support plate portion 87 is set to be substantially equal to that of the right attachment guide portion 865 and the left attachment guide portion 866, and the length dimension in the left-right direction is slightly smaller than the support plate central portion 861. Is set.

温度検出部７は、サーミスタ基板７１と、このサーミスタ基板７１の下面に設けられたサーミスタ７２とを備える。そして、温度検出部７は、サーミスタ基板７１が支持板中央部８６１の上面に配置され、かつ、サーミスタ７２が嵌合開口部８６２に嵌め込まれることで、支持部８に支持されている。 The temperature detection unit 7 includes a thermistor substrate 71 and a thermistor 72 provided on the lower surface of the thermistor substrate 71. The temperature detection unit 7 is supported by the support unit 8 when the thermistor substrate 71 is disposed on the upper surface of the support plate central portion 861 and the thermistor 72 is fitted into the fitting opening 862.

そして、第１支持板部８６及び第２支持板部８７が設けられた支持部８を、絶縁シート５３及び電力供給部６が設けられた電源筐体５に取り付ける際には、右取付案内部８６５及び左取付案内部８６６の略コ字状で囲まれた空間に切欠部５１４の縁を挟み込み、支持部８を第１支持板部８６の面方向に沿って案内する。そして、右傾斜部８６３及び左傾斜部８６４の前面側端部が、切欠部５１４から露出する絶縁シート５３に当接したら、図示しないねじで支持部８を電源筐体５に固定する。 When the support portion 8 provided with the first support plate portion 86 and the second support plate portion 87 is attached to the power supply housing 5 provided with the insulating sheet 53 and the power supply portion 6, a right attachment guide portion is provided. The edge of the notch 514 is sandwiched in the space surrounded by the substantially U-shape of the 865 and the left mounting guide portion 866, and the support portion 8 is guided along the surface direction of the first support plate portion 86. And if the front side edge part of the right inclination part 863 and the left inclination part 864 contact | abuts the insulating sheet 53 exposed from the notch part 514, the support part 8 will be fixed to the power supply housing | casing 5 with the screw which is not shown in figure.

この電源筐体５と支持部８との固定により、電源筐体５には、図６に示すように、吸気口５４から（図６中右側から）電源筐体５内に導入された空気を、電源基板６０、電子部品６２を冷却するように導き、排気口８５１から（図６中左側から）排出するための主流路Ｃｍが形成される。この主流路Ｃｍの上端は、絶縁シート５３、右取付案内部８６５、第２支持板部８７、左取付案内部８６６、及び絶縁シート５３により規定され、下端は、放熱板６１により規定されている。 By fixing the power supply casing 5 and the support portion 8 to the power supply casing 5, as shown in FIG. 6, air introduced into the power supply casing 5 from the air inlet 54 (from the right side in FIG. 6). The main flow path Cm is formed to guide the power supply board 60 and the electronic component 62 to cool and to discharge from the exhaust port 851 (from the left side in FIG. 6). The upper end of the main flow path Cm is defined by the insulating sheet 53, the right mounting guide portion 865, the second support plate portion 87, the left mounting guide portion 866, and the insulating sheet 53, and the lower end is defined by the heat radiating plate 61. .

また、電源筐体５には、主流路Ｃｍにおける検出対象部品６２０に対向する位置から上側に分岐する副流路Ｃｓが形成される。この副流路Ｃｓの上端は、第１支持板部８６により規定され、下端は、第２支持板部８７により規定され、背面側は中央平面部８３で規定されている。そして、副流路Ｃｓにおける右端は、主流路Ｃｍを流れる空気の一部を副流路Ｃｓ内に導くための副流路空気導入部Ｃａとして機能し、左端は、温度検出部７で温度が検出された後の空気を検出非対象部品６２４に対向する位置に導く、すなわち主流路Ｃｍに再度導く副流路空気導出部Ｃｄとして機能する。この副流路空気導出部Ｃｄは、副流路空気導入部Ｃａよりも小さく形成されている。 Further, the power supply housing 5 is formed with a sub-channel Cs that branches upward from a position facing the detection target component 620 in the main channel Cm. The upper end of the sub-channel Cs is defined by the first support plate portion 86, the lower end is defined by the second support plate portion 87, and the back side is defined by the central plane portion 83. The right end of the sub-channel Cs functions as a sub-channel air introduction unit Ca for guiding a part of the air flowing through the main channel Cm into the sub-channel Cs, and the temperature at the left end is the temperature detection unit 7. It functions as a sub-channel air outlet Cd that guides the detected air to a position facing the non-detection target component 624, that is, guides the air again to the main channel Cm. The sub-channel air outlet Cd is formed smaller than the sub-channel air inlet Ca.

また、絶縁シート５３は、切欠部５１４の縁部、すなわち上面部５１２における右取付案内部８６５内及び左取付案内部８６６内でそれぞれ挟まれる端部まで設けられる。このように、絶縁シート５３を設けることで、右取付案内部８６５及び左取付案内部８６６の下方に位置する電子部品６２と、金属製の上面部５１２との絶縁距離が長くなり、電子部品６２の絶縁破壊を防止できる。 Further, the insulating sheet 53 is provided up to the edge of the notch 514, that is, the end portion sandwiched in the upper mounting guide 865 and the left mounting guide 866 on the upper surface 512. Thus, by providing the insulating sheet 53, the insulation distance between the electronic component 62 positioned below the right mounting guide portion 865 and the left mounting guide portion 866 and the metal upper surface portion 512 is increased, and the electronic component 62 Insulation breakdown can be prevented.

〔温度検出部による検出対象部品の温度検出〕
次に、温度検出部７による検出対象部品６２０の温度検出について、図６を参照して説明する。
電源装置４による電力供給中には、電源基板６０や電子部品６２に電流が流れるため、これらの温度が上昇する。制御装置は、シロッコファン１０を駆動させ、電源筐体５内に電源基板６０や電子部品６２を冷却するための空気を導入する。 [Temperature detection of temperature detection parts]
Next, temperature detection of the detection target component 620 by the temperature detection unit 7 will be described with reference to FIG.
During the power supply by the power supply device 4, current flows through the power supply substrate 60 and the electronic component 62, so that these temperatures rise. The control device drives the sirocco fan 10 and introduces air for cooling the power supply substrate 60 and the electronic component 62 into the power supply housing 5.

この導入された空気（導入空気Ａ０）は、図６に示すように、主流路Ｃｍに配置された検出非対象部品６２１，６２２、検出対象部品６２０に順次接触する。この接触により、検出非対象部品６２１，６２２、検出対象部品６２０が冷却される。一方で、検出対象部品６２０に接触した直後の被加温空気Ａ１（検出対象部品６２０を介した被加温空気Ａ１）の温度は、検出対象部品６２０の冷却前の温度とほぼ等しくなる。
そして、被加温空気Ａ１は、検出対象部品６２０に対向する位置に設けられた主流路Ｃｍと副流路Ｃｓとの分岐点付近に到達すると、主流路Ｃｍを流れる主被加温空気Ａ１１と、副流路空気導入部Ｃａから副流路Ｃｓ内に取り込まれる副被加温空気Ａ１２とに分かれる。 As shown in FIG. 6, the introduced air (introduced air A0) sequentially comes into contact with the non-detection target components 621 and 622 and the detection target component 620 arranged in the main flow path Cm. By this contact, the detection non-target components 621 and 622 and the detection target component 620 are cooled. On the other hand, the temperature of the heated air A1 (heated air A1 via the detection target component 620) immediately after contacting the detection target component 620 is substantially equal to the temperature of the detection target component 620 before cooling.
Then, when the heated air A1 reaches the vicinity of the branch point between the main flow path Cm and the sub flow path Cs provided at the position facing the detection target component 620, the heated air A1 that flows through the main flow path Cm The sub-heated air A12 is taken into the sub-channel Cs from the sub-channel air introduction part Ca.

この後、副被加温空気Ａ１２から分かれた主被加温空気Ａ１１は、主流路Ｃｍ内の検出非対象部品６２３に接触する。
一方、副被加温空気Ａ１２は、副流路Ｃｓを辿った後、副流路空気導出部Ｃｄを介して主流路Ｃｍ内に再度導かれる。すなわち、副被加温空気Ａ１２は、副流路Ｃｓ外に導かれる。
この際、副流路Ｃｓ内に露出しているサーミスタ７２により、副被加温空気Ａ１２の温度が検出され、この検出結果は、サーミスタ基板７１を介して制御装置へ出力される。制御装置は、この検出結果に基づいて、シロッコファン１０の回転数を制御する。例えば、制御装置は、サーミスタ７２での検出結果に基づき、検出対象部品６２０を更に冷却する必要があると判断すると、シロッコファン１０の回転数を上げる。
また、サーミスタ７２での温度検出後に主流路Ｃｍ内に導かれる温度検出後空気Ａ１３は、主被加温空気Ａ１１と混ざった後に検出非対象部品６２４，６２５に接触することでこれらを冷却し、排出空気Ａ２として排気口８５１から電源筐体５外に排出される。 Thereafter, the main heated air A11 separated from the sub-heated air A12 comes into contact with the detection non-target component 623 in the main flow path Cm.
On the other hand, the sub-heated air A12 is guided again into the main channel Cm via the sub-channel air outlet Cd after following the sub-channel Cs. That is, the sub-heated air A12 is guided out of the sub-channel Cs.
At this time, the temperature of the sub-heated air A12 is detected by the thermistor 72 exposed in the sub-channel Cs, and the detection result is output to the control device via the thermistor substrate 71. The control device controls the rotation speed of the sirocco fan 10 based on the detection result. For example, when the control device determines that it is necessary to further cool the detection target component 620 based on the detection result of the thermistor 72, the control device increases the rotation speed of the sirocco fan 10.
In addition, the temperature-detected air A13 introduced into the main flow path Cm after the temperature detection by the thermistor 72 is mixed with the main heated air A11 and then cooled by contacting the detection non-target components 624 and 625, The exhausted air A2 is exhausted from the exhaust port 851 to the outside of the power supply housing 5.

上述した本実施形態によれば、以下の効果がある。
本実施形態では、複数の電子部品６２が設けられた電源筐体５内に、空気を導く主流路Ｃｍを設けるとともに、検出対象部品６２０の温度を検出する温度検出部７を、支持部８で支持させている。そして、支持部８に、主流路Ｃｍの検出対象部品６２０を介した空気の一部を取り込む副流路Ｃｓを形成している。
このことにより、検出対象部品６２０の熱で温められた副被加温空気Ａ１２を副流路Ｃｓ内に取り込み、当該副被加温空気Ａ１２の温度を温度検出部７により検出することで、検出対象部品６２０のみの温度を適切に検出できる。さらには、検出対象部品６２０の近傍に温度検出部７を配置していないので、温度検出部７の絶縁破壊を防止できる。 According to this embodiment described above, the following effects are obtained.
In the present embodiment, a main flow path Cm that guides air is provided in the power supply housing 5 provided with a plurality of electronic components 62, and the temperature detection unit 7 that detects the temperature of the detection target component 620 is provided by the support unit 8. I support it. And the subflow path Cs which takes in a part of air via the detection target component 620 of the main flow path Cm is formed in the support portion 8.
As a result, the sub-heated air A12 heated by the heat of the detection target component 620 is taken into the sub-flow channel Cs, and the temperature of the sub-heated air A12 is detected by the temperature detection unit 7, thereby detecting The temperature of only the target component 620 can be detected appropriately. Furthermore, since the temperature detection unit 7 is not disposed in the vicinity of the detection target component 620, the dielectric breakdown of the temperature detection unit 7 can be prevented.

また、温度検出部７で温度が検出された後の温度検出後空気Ａ１３を、副流路空気導出部Ｃｄにより副流路Ｃｓ外部に導いている。
このことにより、温度検出後空気Ａ１３と、新たに副流路Ｃｓ内に導かれる副被加温空気Ａ１２とが副流路Ｃｓ内で混ざることを防止でき、検出対象部品６２０の温度を適切に検出できる。 Further, the temperature-detected air A13 after the temperature is detected by the temperature detection unit 7 is guided to the outside of the sub-channel Cs by the sub-channel air deriving unit Cd.
As a result, the temperature-detected air A13 and the sub-heated air A12 newly introduced into the sub-channel Cs can be prevented from being mixed in the sub-channel Cs, and the temperature of the detection target component 620 can be appropriately set. It can be detected.

さらに、副流路空気導出部Ｃｄは、温度検出後空気Ａ１３を主流路Ｃｍに再度導いている。
このことにより、主流路の空気の量を増やすことができ、検出非対象部品６２４の冷却効率を向上できる。 Further, the sub-channel air outlet Cd guides the temperature-detected air A13 to the main channel Cm again.
As a result, the amount of air in the main flow path can be increased, and the cooling efficiency of the detection non-target component 624 can be improved.

また、支持部８の支持板保持部８１と第１支持板部８６と第２支持板部８７とで挟まれた空間により、副流路Ｃｓを構成しているため、簡単な構成で副流路Ｃｓを設けることができる。 In addition, since the auxiliary flow path Cs is configured by the space sandwiched between the support plate holding portion 81, the first support plate portion 86, and the second support plate portion 87 of the support portion 8, the auxiliary flow is formed with a simple configuration. A path Cs can be provided.

また、電源筐体５に、第１支持板部８６の平面形状に対応する形状の切欠部５１４と、第１支持板部８６及び第２支持板部８７を第１支持板部８６の面方向に沿って挿通可能な挿通開口部５５とを設けている。そして、第１支持板部８６に、右取付案内部８６５及び左取付案内部８６６を設けている。
このことにより、右取付案内部８６５及び左取付案内部８６６の略コ字状で囲まれた空間に切欠部５１４の縁を挟み込み、支持部８を第１支持板部８６の面方向に沿って案内するだけの簡単な方法で、支持部８を電源筐体５に取り付けることができる。また、温度検出部７を支持する第１支持板部８６に、右取付案内部８６５及び左取付案内部８６６を設けているため、部品点数の増加を抑制できる。 Further, the power supply housing 5 is provided with a cutout portion 514 having a shape corresponding to the planar shape of the first support plate portion 86, the first support plate portion 86, and the second support plate portion 87 in the surface direction of the first support plate portion 86. And an insertion opening 55 that can be inserted along the. The first support plate portion 86 is provided with a right attachment guide portion 865 and a left attachment guide portion 866.
As a result, the edge of the notch 514 is sandwiched in the space surrounded by the substantially U-shape of the right attachment guide 865 and the left attachment guide 866, and the support 8 is moved along the surface direction of the first support plate 86. The support portion 8 can be attached to the power supply housing 5 by a simple method just by guiding. Moreover, since the right mounting guide part 865 and the left mounting guide part 866 are provided in the 1st support plate part 86 which supports the temperature detection part 7, the increase in a number of parts can be suppressed.

なお、本発明は前述の実施形態に限定されるものではなく、本発明の目的を達成できる範囲での変形、改良等は本発明に含まれるものである。
前記実施形態では、温度検出後空気Ａ１３を副流路Ｃｓの外部に導くための副流路空気導出部Ｃｄを設けていたが、これに限らず、第２支持板部８７の左傾斜部８６４側の端部を左傾斜部８６４に連結させて副流路空気導出部Ｃｄを設けなくても構わない。
また、前記実施形態では、副流路空気導出部Ｃｄにより温度検出後空気Ａ１３を主流路Ｃｍに再度導いていたが、これに限らず、電源筐体５外部に導いても構わない。
さらに、第１支持板部８６と第２支持板部８７との間に形成された空間を副流路Ｃｓとしたが、これに限らず、主流路Ｃｍ上に管状の部材を設け、当該部材の内部空間を副流路Ｃｓとしても構わない。
そして、右取付案内部８６５及び左取付案内部８６６を設けずに、支持部８と電源筐体５とをねじで固定しても構わない。 It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
In the above-described embodiment, the sub-flow channel air outlet Cd for guiding the temperature-detected air A13 to the outside of the sub-channel Cs is provided, but this is not limiting, and the left inclined portion 864 of the second support plate portion 87 is provided. It is not necessary to connect the end portion on the side to the left inclined portion 864 and provide the auxiliary flow channel air outlet portion Cd.
In the above embodiment, the temperature-detected air A13 is guided again to the main channel Cm by the sub-channel air outlet Cd. However, the present invention is not limited to this, and the air A13 may be guided to the outside of the power supply housing 5.
Furthermore, the space formed between the first support plate portion 86 and the second support plate portion 87 is the sub-flow channel Cs. However, the present invention is not limited to this, and a tubular member is provided on the main flow channel Cm. The inner space may be used as the secondary flow path Cs.
And you may fix the support part 8 and the power supply housing | casing 5 with a screw, without providing the right attachment guide part 865 and the left attachment guide part 866. FIG.

前記実施形態では、本発明の電子機器として電源装置４を説明したが、これに限らず、例えば、パーソナルコンピューター、テレビ等の電源装置以外の電子機器としても構わない。
また、電源装置４は、プロジェクター１に用いられるものに限らず、パーソナルコンピューター、テレビ等に用いられるものであっても構わない。 In the above-described embodiment, the power supply device 4 has been described as the electronic apparatus of the present invention. However, the present invention is not limited to this.
Further, the power supply device 4 is not limited to the one used for the projector 1 but may be one used for a personal computer, a television, or the like.

本発明は、温度検出対象の電子部品の温度を適切に検出可能なため、電子機器やプロジェクターに利用できる。 The present invention can be used for electronic devices and projectors because it can appropriately detect the temperature of an electronic component subject to temperature detection.

１…プロジェクター、４…電源装置（電子機器）、６…電力供給部、７…温度検出部、８…支持部、９…電源コネクター、３１…光源装置、３６…光変調装置、３９…投射レンズ（投射光学装置）、５１…電源筐体（機器筐体）、５２…右背面部（第２面部）、５５…挿通開口部（第２面部）、６２…電子部品、８１…支持板保持部、８６…第１支持板部、８７…第２支持板部、５１２…上面部（第１面部）、５１４…切欠部、８６５…右取付案内部、８６６…左取付案内部、Ｃｄ…副流路空気導出部、Ｃｍ…主流路、Ｃｓ…副流路。 DESCRIPTION OF SYMBOLS 1 ... Projector, 4 ... Power supply device (electronic device), 6 ... Electric power supply part, 7 ... Temperature detection part, 8 ... Support part, 9 ... Power supply connector, 31 ... Light source device, 36 ... Light modulation device, 39 ... Projection lens (Projection optical device), 51 ... power supply casing (equipment casing), 52 ... right rear surface portion (second surface portion), 55 ... insertion opening portion (second surface portion), 62 ... electronic component, 81 ... support plate holding portion , 86 ... 1st support plate part, 87 ... 2nd support plate part, 512 ... Upper surface part (first surface part), 514 ... Notch part, 865 ... Right attachment guide part, 866 ... Left attachment guide part, Cd ... Side flow Road air outlet, Cm ... main flow path, Cs ... sub flow path.

Claims

An equipment housing;
A plurality of electronic components provided in the device housing;
A temperature detection unit for detecting the temperature of the electronic component to be temperature detected among the plurality of electronic components;
And a support portion for supporting the temperature detecting section,
A main flow path for guiding air to cool the plurality of electronic components is formed in the device casing,
The support part is
A first support plate that supports the temperature detector;
A second support plate facing the first support plate;
A support plate holding portion for holding the first support plate portion and the second support plate portion;
The sub-portion is configured by a space surrounded by the first support plate portion, the second support plate portion, and the support plate holding portion, and takes in a part of air through the electronic component of the temperature detection target in the main flow path. an electronic apparatus comprising: the flow path, the.

The electronic device according to claim 1,
The electronic device, wherein the support portion is provided with a sub-channel air deriving unit that guides the air after the temperature is detected by the temperature detection unit to the outside of the sub-channel.

The electronic device according to claim 2,
The electronic device according to claim 1, wherein the sub-channel air deriving unit guides the air after the temperature is detected by the temperature detecting unit to the main channel again.

In the electronic device in any one of Claims 1-3 ,
The device housing is provided with a first surface portion and a second surface portion substantially orthogonal to each other,
The first surface portion is provided with a cutout portion having a shape corresponding to the planar shape of the first support plate portion,
The second surface portion is provided with an insertion opening through which the first support plate portion and the second support plate portion can be inserted along the surface direction of the first support plate portion,
On both side edges of the first support plate portion parallel to the insertion direction of the first support plate portion, the support portion is guided in the insertion direction by engagement with an edge of the notch portion, and the support portion is An electronic device, characterized in that a mounting guide portion to be attached to the device housing is provided.

In the electronic device in any one of Claims 1-4 ,
A power supply unit that supplies the power supplied via the power connector to the outside is provided.
The plurality of electronic components are provided in the power supply unit,
The electronic device is a power supply device.

A light source device, a light modulation device that modulates a light beam emitted from the light source device, a projection optical device that projects a light beam modulated by the light modulation device, and the electronic apparatus according to claim 5. A projector characterized by that.