JPH02196193A - Cooling fan - Google Patents
Cooling fanInfo
- Publication number
- JPH02196193A JPH02196193A JP1561889A JP1561889A JPH02196193A JP H02196193 A JPH02196193 A JP H02196193A JP 1561889 A JP1561889 A JP 1561889A JP 1561889 A JP1561889 A JP 1561889A JP H02196193 A JPH02196193 A JP H02196193A
- Authority
- JP
- Japan
- Prior art keywords
- cooling fan
- air
- little
- inflow
- present
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 36
- 238000005452 bending Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、透過型ライトパルプを用いた投射型表示装置
等に用いられる冷却用ファンに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cooling fan used in a projection type display device using transmission type light pulp.
［発明が解決しようとする課題］
しかし、前述の従来技術では、冷却能力がまだ低く、そ
のため投射型表示装置内の温度が高（なり、触ってあう
いし、内蔵する種々の電子部品や透過型ライトパルプの
寿命が短いという欠点を有していた。また、そのために
光源のパワーを下げなげればならず、高輝度化のネック
となっていたそこ５で本発明はこのよ５な課題を解決す
るためなされたものである。[Problems to be Solved by the Invention] However, with the above-mentioned conventional technology, the cooling capacity is still low, and as a result, the temperature inside the projection display device is high (the temperature inside the projection display device is high, the temperature is high, and the various electronic components and transmission type Light pulp has the disadvantage of having a short lifespan.Also, the power of the light source must be lowered for this reason, which is a bottleneck in achieving higher brightness.The present invention solves these problems. This was done to solve the problem.
［課題を解決するための手段］
本発明の冷却用ファンは、冷却用ファンに付随する羽根
が、空気の流入方向に沿って少しずつ曲がりていること
を特徴とする特
また、前記流入方向のつきあたりにある壁が、流入空気
を効率良く吹き出せるように円錐状になっていることを
特徴とする。[Means for Solving the Problems] The cooling fan of the present invention is characterized in that the blades attached to the cooling fan are bent little by little along the direction of air inflow. The wall at the end has a conical shape to efficiently blow out the incoming air.
［作用コ
上記の様に構成された冷却用ファンは、羽根が、空気の
流入方向に沿って蚤しずつ曲がっているために吸い込ん
だ空気を効率良（吹き出すことができる。（第１図）
また、空気流入方向のつきあたりにある壁が、円錐状に
なっているので、やはり吸い込んだ空気を効率的に吹き
出すことができる。（第２図）そのため、吸い込む空気
の量と吹き出す空気の量が増え、結果的に冷却能力が高
まった。[Operation] The cooling fan configured as described above can blow out the sucked air efficiently because the blades are bent in parallel along the direction of air inflow. (Figure 1) Also, since the wall at the end of the air inflow direction is conical, it is possible to efficiently blow out the air sucked in. (Figure 2) Therefore, the amount of air sucked in and the amount of air blown out are has increased, resulting in an increase in cooling capacity.
［実施例］
以下、実施例にもとすき本発明の詳細な説明する。ただ
し、本発明は以下の実施例に限定されるものではない。[Examples] Hereinafter, the present invention will be explained in detail using examples. However, the present invention is not limited to the following examples.
（実施例１）
第１図は本発明の冷却用ファンの羽根の構造を示す図で
ある。比較のため従来の冷却用ファンの羽根の構造を第
４図に示す。(Example 1) FIG. 1 is a diagram showing the structure of a blade of a cooling fan of the present invention. For comparison, the structure of a conventional cooling fan blade is shown in FIG.
また、第２図は本発明の冷却用ファンの断面図である。Moreover, FIG. 2 is a sectional view of the cooling fan of the present invention.
比較のため従来の冷却用ファンの断面図を第５図に示す
。For comparison, a cross-sectional view of a conventional cooling fan is shown in FIG.
本発明の冷却用ファンと従来の冷却用ファンを同じ回転
数で回転させたところ、本発明の冷却用ファンの方が吸
入空気量、吹き出し空気量ともに大きく、冷却能力が高
いことがわかった。When the cooling fan of the present invention and the conventional cooling fan were rotated at the same rotation speed, it was found that the cooling fan of the present invention had a larger intake air amount and blown air amount, and had a higher cooling capacity.
（実施例２）
第５図は、透過型ライトバルブを用いた投射型表示装置
の構成を示す図である。前記構成の投射型表示装置の本
体内部に本発明の冷却用ファンを収納し、冷却を行ない
ながら画面を表示した。又、前記構成の投射型表示装置
の本体内部に従来の冷却用ファンを収納し、冷却を行な
いながら画面を表示した。１時間後、本体内部の温度を
測定したところ本発明の冷却用ファンを用いた方がどの
場所でも温度が低かった。また、高輝度、多湿の条件で
加速試験を行ない、アレニウスプロットヲとったところ
、どの電子部品も透過型ライトバルブも寿命が長くなっ
た。また、同じ寿命モ比較すると、光源をより高い輝度
で使うことができることがわかった。(Example 2) FIG. 5 is a diagram showing the configuration of a projection type display device using a transmission type light valve. The cooling fan of the present invention was housed inside the main body of the projection display device having the above structure, and the screen was displayed while cooling. Further, a conventional cooling fan was housed inside the main body of the projection type display device having the above structure, and the screen was displayed while performing cooling. One hour later, when the temperature inside the main body was measured, the temperature was lower everywhere using the cooling fan of the present invention. In addition, when we conducted accelerated tests under high brightness and high humidity conditions and obtained an Arrhenius plot, we found that all electronic components and transmission light valves had longer lifespans. Furthermore, when comparing models with the same lifespan, it was found that the light source could be used at higher brightness.
［発明の効果］
本発明の冷却用ファンは、冷却用ファンに併重している
羽根が、空気の流入方向に沿って少しずつ曲がっている
こと、および空気流入方向のつきあたりにある壁が、流
入空気を効率よ（吹き出せるように円錐状になっている
ことのために、空気の吸入量と吹き出し量が安定的に増
え、冷却能力が高まるという効果がある。[Effects of the Invention] The cooling fan of the present invention is characterized in that the blades superimposed on the cooling fan are bent little by little along the direction of air inflow, and that the wall at the end of the direction of air inflow is The conical shape allows the incoming air to be blown out more efficiently, which has the effect of stably increasing the amount of air taken in and blown out, increasing the cooling capacity.
また、本発明の冷却用ファンを用いた投射型表示装置の
寿命を延ばすことや高輝度化をはかれることなどの効果
もある。Further, there are also effects such as extending the life of a projection type display device using the cooling fan of the present invention and increasing the brightness.
第１図は本発明の冷却用ファンの羽根の構造な示す図。
第２図は本発明の冷却用ファンの断面図。
第５図は投射型表示装置の構成を示す図。
第４図は従来の冷却用ファンの羽根の構造を示す図。
第５図は従来の冷却用ファンの断面図。
１・・・・・・・・・光 源
２・・・・・・−・・ダイクロイックミラー３・・・・
・・・・・反射ミラー
４・・・・・・・・・透過型ライトバルブ５・・・・・
・・・・ダイクロイックプリズム６・・・・・・・・・
投射レンズ
７・・・・・・・・・スクリーン
以上
出願人 セイコーエプソン株式会社
代理人 弁理士 上柳雅誉（他１名）
第２図
第３図FIG. 1 is a diagram showing the structure of a blade of a cooling fan according to the present invention. FIG. 2 is a sectional view of the cooling fan of the present invention. FIG. 5 is a diagram showing the configuration of a projection type display device. FIG. 4 is a diagram showing the structure of a blade of a conventional cooling fan. FIG. 5 is a sectional view of a conventional cooling fan. 1...Light source 2...Dichroic mirror 3...
...Reflection mirror 4...Transmission type light valve 5...
・・・Dichroic prism 6・・・・・・・・・
Projection lens 7... Screen or above Applicant Seiko Epson Co., Ltd. Agent Patent attorney Masayoshi Kamiyanagi (1 other person) Figure 2 Figure 3
Claims (2)
方向に沿って少しずつ曲がっていることを特徴とする冷
却用ファン。(1) A cooling fan characterized in that the blades attached to the cooling fan are bent little by little along the direction of air inflow.
壁が、流入空気を効率よく吹き出せるように円錐状にな
っていることを特徴とする冷却用ファン。(2) A cooling fan characterized in that the wall at the end of the cooling fan in the air inflow direction has a conical shape so that the inflowing air can be blown out efficiently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1561889A JPH02196193A (en) | 1989-01-25 | 1989-01-25 | Cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1561889A JPH02196193A (en) | 1989-01-25 | 1989-01-25 | Cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02196193A true JPH02196193A (en) | 1990-08-02 |
Family
ID=11893697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1561889A Pending JPH02196193A (en) | 1989-01-25 | 1989-01-25 | Cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02196193A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0738692U (en) * | 1993-10-14 | 1995-07-14 | 一彦 沼川 | A fan that can blow air in all directions or 360 ° |
| US7137706B2 (en) | 2001-09-03 | 2006-11-21 | Matsushita Electric Industrial Co., Ltd. | Fan apparatus, method of manufacturing fan apparatus, projection type display device and electronic device |
-
1989
- 1989-01-25 JP JP1561889A patent/JPH02196193A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0738692U (en) * | 1993-10-14 | 1995-07-14 | 一彦 沼川 | A fan that can blow air in all directions or 360 ° |
| US7137706B2 (en) | 2001-09-03 | 2006-11-21 | Matsushita Electric Industrial Co., Ltd. | Fan apparatus, method of manufacturing fan apparatus, projection type display device and electronic device |
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