JPH04203727A - Ceiling built-in type ventilating fan - Google Patents
Ceiling built-in type ventilating fanInfo
- Publication number
- JPH04203727A JPH04203727A JP33403290A JP33403290A JPH04203727A JP H04203727 A JPH04203727 A JP H04203727A JP 33403290 A JP33403290 A JP 33403290A JP 33403290 A JP33403290 A JP 33403290A JP H04203727 A JPH04203727 A JP H04203727A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- rotational speed
- rotation speed
- detection device
- ceiling
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims description 24
- 239000000428 dust Substances 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Ventilation (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はファンの目詰まりを回転数検出装置で検知する
フィルター付きの天上埋込形換気扇に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ceiling-mounted ventilation fan equipped with a filter that detects clogging of the fan using a rotational speed detection device.
従来の技術
近年、ファンの回転状況が見えない天井埋込形換気扇に
おいては、ファンの活れ具合を外部で検知できる手段の
要求が高まっている。BACKGROUND OF THE INVENTION In recent years, in ceiling-embedded ventilation fans where the rotational status of the fan cannot be seen, there has been an increasing demand for means that can externally detect the operating status of the fan.
従来この種の天井埋込形換気扇は、特定する文献をあげ
ることはできないが、一般に第２図にしめすように差圧
センサ１０１を換気扇本体１０２に内蔵し、前記換気扇
本体１０２内部に開口した圧力検知は１０３と、天井裏
に引き出された天井裏圧力検出口１０４との圧力差を検
知し、この圧力差の変化によりフィルター１０５の目詰
まりを判定して差圧表示部材１０６にて表示していた。Conventionally, this type of ceiling-embedded ventilation fan has a differential pressure sensor 101 built into the ventilation fan body 102, as shown in FIG. Detection is performed by detecting the pressure difference between the pressure detection port 103 and the attic pressure detection port 104 drawn out into the attic, and based on the change in this pressure difference, clogging of the filter 105 is determined and displayed on the differential pressure display member 106. Ta.
発明が解決しようとする課題
このような従来の天井埋込形換気扇では、換気扇本体１
０２の内部に差圧センサー１０１が固定されているため
、差圧センサー１０１の開口部手前側のフィルター１０
５の目詰まりは清掃することが可能であるが、差圧セン
サー１０１の開口部より奥側にあるファン１０７は清掃
することができないということが問題となっていた。Problems to be Solved by the Invention In such a conventional ceiling-embedded ventilation fan, the ventilation fan body 1
Since the differential pressure sensor 101 is fixed inside the filter 10, the filter 10 on the front side of the opening of the differential pressure sensor 101
5 can be cleaned, but the problem is that the fan 107 located on the back side of the opening of the differential pressure sensor 101 cannot be cleaned.
本発明は上記の課題を解決するもので、ファンが汚れ目
詰まりすることで回転数が増加するという特製より、フ
ァンを駆動する電動機の回転数検出により目詰まりの判
定を行いフィルターだけでな（、ファンの清掃も可能と
した天井埋込形換気扇を提供することを目的とするもの
である。The present invention solves the above problem, and instead of using a special product in which the rotation speed increases due to dirt and clogging of the fan, clogging is determined by detecting the rotation speed of the electric motor that drives the fan, and the filter is not used alone. The object of the present invention is to provide a ceiling-embedded ventilation fan that also allows cleaning of the fan.
課題を解決するための手段
本発明の天井埋込形換気扇は、上記目的を達成するため
に、回転数検知装置と、この回転数検出装置を有した電
動機と、ファンとを内蔵し、下面に開口部と、天井への
取り付け部を設けた換気扇本体と、前記開口部を閉畜す
るフィルターとを備え、前記回転数検出装置は電動機の
回転数を検知し、回転数がある設定値に達したことを表
示する回転数表示部を設けた構成としたものである。Means for Solving the Problems In order to achieve the above object, the ceiling-embedded ventilation fan of the present invention incorporates a rotation speed detection device, an electric motor having the rotation speed detection device, and a fan, and has a built-in fan on the bottom surface. The ventilation fan body includes an opening, a ceiling attachment part, and a filter that closes the opening, and the rotation speed detection device detects the rotation speed of the electric motor and detects when the rotation speed reaches a certain set value. The configuration includes a rotation speed display section that displays the rotation speed.
作 用
本発明の天井埋込形換気扇は、上記した構成により、電
動機の回転数を検知することでファンの目詰まりを検知
できることとなり、フィルターだけでなく、ファンの清
掃をも可能となる。Function: With the above-described configuration, the ceiling-embedded ventilation fan of the present invention can detect clogging of the fan by detecting the rotational speed of the electric motor, making it possible to clean not only the filter but also the fan.
実施例
以下、本発明の一実施例を第１図にもとすいて説明する
。EXAMPLE An example of the present invention will be described below with reference to FIG.
図に示すように、換気扇本体１は下面に開口部２と天井
３への取付け部４が形成され、回転数検出装置５と、こ
の回転数検出装置５を有した電動機６と、この電動機６
により駆動されるファン７を内蔵している。そして、フ
ィルター８は天井３および換気扇本体１に係止されてい
る。また、前記回転数検出装置５で検出された回転数が
所定値以上の場合に表示する回転数表示部９を設けてい
る。上記構成において、換気扇を長期間運転すると、塵
埃などがファン７に付着し、ファン７の回転数が換気扇
本体１の特性規格よりはずれるようになる。そのために
、ファン７の目詰まり具合、すなわち汚れ具合の判定拍
標にすることができる。そして、ファン７の回転数があ
る設定値以上になると、回転数検出装置５が検知して、
電気信号にて、換気扇本体１から離れた場所に設置され
た回転数表示部９にて、ファン７の汚れ具合を表示し、
ファン７の清掃の目安とするものである。As shown in the figure, the ventilation fan main body 1 has an opening 2 and a ceiling 3 attachment part 4 formed on the lower surface, a rotation speed detection device 5, an electric motor 6 having the rotation speed detection device 5, and the electric motor 6.
It has a built-in fan 7 driven by. The filter 8 is secured to the ceiling 3 and the ventilation fan body 1. Further, a rotation speed display section 9 is provided which displays when the rotation speed detected by the rotation speed detection device 5 is equal to or higher than a predetermined value. In the above configuration, if the ventilation fan is operated for a long period of time, dust and the like will adhere to the fan 7, and the rotation speed of the fan 7 will deviate from the characteristic specifications of the ventilation fan main body 1. Therefore, it can be used as a criterion for determining the degree of clogging of the fan 7, that is, the degree of contamination. Then, when the rotation speed of the fan 7 exceeds a certain set value, the rotation speed detection device 5 detects,
Using an electric signal, the degree of dirt on the fan 7 is displayed on the rotation speed display section 9 installed at a location away from the ventilation fan main body 1,
This is used as a guideline for cleaning the fan 7.
なお、回転数表示部９は、フィルター８や図示しない化
粧グリルで隠蔽されないように換気扇本体１に内蔵され
ていてもかまわない。Note that the rotation speed display section 9 may be built into the ventilation fan main body 1 so as not to be hidden by the filter 8 or a decorative grille (not shown).
発明の効果
以上の実施例から明らかなように、回転数検出装置にて
、換気扇の電動機の回転数を検知することにより、ファ
ンの汚れ具合を知ることができ、かつ、ファンの清掃を
励行し、常に換気扇の有効的な運転が可能となる天井埋
込形換気扇を提供できる。Effects of the Invention As is clear from the above embodiments, by detecting the rotation speed of the motor of the ventilation fan with the rotation speed detection device, it is possible to know how dirty the fan is and to make sure to clean the fan. , it is possible to provide a ceiling-embedded ventilation fan that enables effective operation of the ventilation fan at all times.
第１図は、本発明の一実施例の天井埋込形換気扇の断面
図、第２図は従来の天井埋込形換気扇の断面図である。
１・・・・・・換気扇本体、２・・・・・・開ｏ ８
、３−−−−−−天井、４・・・・・・取り付け部、５
・・・・・・回転数検出装置、６・・・・・・電動機、
７・・・・・・ファン、８・・・・・・フィルター、９
・・・・・・回転数表示部。
代理人の氏名 弁理士小蝦治 明ほか２名−１’７１−FIG. 1 is a sectional view of a ceiling-embedded ventilation fan according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional ceiling-embedded ventilation fan. 1... Ventilation fan body, 2... Open o 8
, 3------Ceiling, 4... Attachment part, 5
...Rotation speed detection device, 6...Electric motor,
7...Fan, 8...Filter, 9
...Rotation speed display section. Name of agent: Patent attorney Akira Koeji and two others -1'71-
Claims (1)
置と、ファンを内蔵し、下面に、開口部と、天井への取
り付け部を設けた換気扇本体と、前記開口部を閉畜する
フィルターとを備え、前記回転数検出装置が前記電動機
の回転数を検知し、回転数が設定値に達したことを表示
する回転数表示部を設けた天井埋込形換気扇。An electric motor, a rotation speed detection device for detecting the rotation speed of the electric motor, a ventilation fan body having a built-in fan, an opening on the bottom surface, and a ceiling attachment portion, and a filter for closing the opening. A ceiling-embedded ventilation fan, comprising: a rotation speed display unit for detecting the rotation speed of the electric motor by the rotation speed detection device and displaying that the rotation speed has reached a set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33403290A JPH04203727A (en) | 1990-11-29 | 1990-11-29 | Ceiling built-in type ventilating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33403290A JPH04203727A (en) | 1990-11-29 | 1990-11-29 | Ceiling built-in type ventilating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04203727A true JPH04203727A (en) | 1992-07-24 |
Family
ID=18272743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33403290A Pending JPH04203727A (en) | 1990-11-29 | 1990-11-29 | Ceiling built-in type ventilating fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04203727A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030023891A (en) * | 2003-01-22 | 2003-03-20 | 김대환 | Exchange cycle layout of air cleaner filter and perception method |
| JP2006207880A (en) * | 2005-01-26 | 2006-08-10 | Matsushita Electric Ind Co Ltd | Ventilating fan |
| JP2010255960A (en) * | 2009-04-27 | 2010-11-11 | Mitsubishi Electric Corp | Heat exchange ventilation device |
-
1990
- 1990-11-29 JP JP33403290A patent/JPH04203727A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030023891A (en) * | 2003-01-22 | 2003-03-20 | 김대환 | Exchange cycle layout of air cleaner filter and perception method |
| JP2006207880A (en) * | 2005-01-26 | 2006-08-10 | Matsushita Electric Ind Co Ltd | Ventilating fan |
| JP2010255960A (en) * | 2009-04-27 | 2010-11-11 | Mitsubishi Electric Corp | Heat exchange ventilation device |
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