JPH04208345A - Ventilator with filter - Google Patents
Ventilator with filterInfo
- Publication number
- JPH04208345A JPH04208345A JP33828890A JP33828890A JPH04208345A JP H04208345 A JPH04208345 A JP H04208345A JP 33828890 A JP33828890 A JP 33828890A JP 33828890 A JP33828890 A JP 33828890A JP H04208345 A JPH04208345 A JP H04208345A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- pressure
- differential pressure
- ventilation fan
- 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
- 238000009423 ventilation Methods 0.000 claims description 32
- 239000000428 dust Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はフィルターの目詰まりを差圧センサーで検知す
るフィルター付きの天井埋込形の換気扇に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ceiling-mounted ventilation fan equipped with a filter that detects clogging of the filter using a differential pressure sensor.
従来の技術
従来この種のフィルター付換気扇は、一般に第３図に示
すように差圧センサー本体１０１は換気扇本体１０２に
内蔵され、換気扇本体内部に開口した圧力検知口１０３
と、室内天井面へ引き出された室内圧力検知用チューブ
１０５の先端検知口１０６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１０７の目詰まりを判定し
ていた。2. Description of the Related Art Conventionally, in this type of ventilation fan with a filter, as shown in FIG.
The pressure difference between this and the tip detection port 106 of the indoor pressure detection tube 105 drawn out to the ceiling of the room is detected, and clogging of the filter 107 is determined based on a change in this pressure difference.
発明が解決しようとする課題
このような従来のフィルター付換気扇では、換気扇本体
１０２内部から出された室内圧力検知用チューブ１０５
が室内天井面に露出することになり、美観上問題となっ
ていた。Problems to be Solved by the Invention In such a conventional ventilation fan with a filter, the indoor pressure detection tube 105 extending from inside the ventilation fan main body 102
was exposed on the indoor ceiling, creating an aesthetic problem.
本発明は上記課題を解決するもので、各種建物の調査に
より室内圧力と天井裏圧力には余り差が無いという結果
を得、室内圧力の代用として天井裏圧力を検知すること
により、室内圧力検知用チューブを廃止し、換気扇設置
での美観の向上を図ることのできるフィルター付換気扇
を提供することを目的とするものである。The present invention solves the above-mentioned problems, and it has been found through surveys of various buildings that there is not much difference between indoor pressure and attic pressure, and by detecting attic pressure as a substitute for indoor pressure, indoor pressure can be detected. The purpose of this invention is to provide a ventilation fan with a filter that can eliminate the need for a filter tube and improve the aesthetic appearance of the ventilation fan installed.
課題を解決するための手段
本発明のフィルター付換気扇は、上記目的を達成するた
めに、電動機とファンと差圧センサー本体を内蔵し、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、前記開口部を閉蓋するフィルターとを備え、前記差
圧センサーは換気扇本体内部と換気扇本体に設けられた
天井裏との貫通口を介して換気扇本体外部の天井裏との
圧力差を検知し、この圧力差がある設定値に達したこと
を表示する差圧表示部材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 ventilation fan with filter of the present invention has a built-in electric motor, a fan, and a differential pressure sensor body, and has an opening on the bottom and a ceiling mounting part. The differential pressure sensor detects the pressure difference between the inside of the ventilation fan body and the attic outside the ventilation fan body through a through hole between the inside of the ventilation fan body and the ceiling provided in the ventilation fan body. The configuration includes a differential pressure display member that detects and displays that the pressure difference has reached a certain set value.
作 用
本発明のフィルター付換気扇は、上記した構成により、
室内圧力にほぼ近い天井裏圧力と、換気扇本体内部との
圧力差を検知することでフィルターの目詰まりを検知で
きることとなり、室内圧力検知用チューブを廃止できる
こととなる。Function: The filter-equipped ventilation fan of the present invention has the above-described configuration.
By detecting the pressure difference between the attic pressure, which is close to indoor pressure, and the pressure inside the ventilation fan itself, filter clogging can be detected, making it possible to eliminate the indoor pressure detection tube.
実 施 例
以下、本発明の一実施例を第１図および第２図にもとづ
いて説明する。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
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への取り付け部４が形成され、電動機５とファン６と
、差圧センサー本体７を内蔵している。また、フィルタ
ー８は図示しない方法で天井３および換気扇本体１に保
圧されている。そして、前記差圧センサー本体７は２つ
の圧力検知口９ａ、９ｂを有し、一方の圧力検知口９ａ
は換気扇内部１０の圧力を、もう一方の圧力検知口９ｂ
は換気扇本体に設けられた天井裏１１との貫通口１２と
、連結チューブ１３で連結されて天井裏１１の圧力を検
知し、圧力検知口９ａと９ｂの圧力差を電気信号に変換
する。換気扇を長期間運転すると、塵埃などがフィルタ
ー８に付着し、フィルター８での圧力損失が大きくなり
、換気扇内部１０と室内１４との圧力差は太き（なる。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, and has an electric motor 5, a fan 6, and a differential pressure sensor main body 7 built therein. Further, the filter 8 is kept under pressure by the ceiling 3 and the ventilation fan body 1 by a method not shown. The differential pressure sensor body 7 has two pressure detection ports 9a and 9b, one of which is the pressure detection port 9a.
is the pressure inside the ventilation fan 10, and the other pressure detection port 9b
is connected by a connecting tube 13 to a through hole 12 provided in the ventilation fan body that connects to the attic 11, detects the pressure in the attic 11, and converts the pressure difference between the pressure detection ports 9a and 9b into an electrical signal. When the ventilation fan is operated for a long period of time, dust and the like adhere to the filter 8, the pressure loss in the filter 8 increases, and the pressure difference between the inside 10 of the ventilation fan and the room 14 increases.
そのため、この圧力差の変化をフィルター８の目詰まり
具合すなわち汚れ具合の判定指標にすることができるの
であるが、各種建物の調査により、室内１４と天井裏１
１との圧力差は少ないことにより圧力検知口９ａと９ｂ
の圧力差にてフィルター８の目詰まりを近似的に検知し
、電気信号にて、換気扇本体１から離れた場所に設置さ
れた差圧表示部材１５にてフィルターの汚れ具合を表示
し、フィルター８の掃除や交換の目安にする。なお、差
圧表示部材１５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。Therefore, changes in this pressure difference can be used as an index for determining how clogged the filter 8 is, that is, how dirty the filter 8 is.
Since the pressure difference between 1 and 1 is small, pressure detection ports 9a and 9b
clogging of the filter 8 is approximately detected based on the pressure difference of as a guideline for cleaning or replacing. Note that the differential pressure display member 15 may be built into the ventilation fan 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、差圧センサーにて、
換気扇内部と室内との圧力差の代わりに換気扇内部と天
井裏との圧力差を検知することによりフィルターの汚れ
具合を近似的に知ることができ、室内圧力検知用チュー
ブが廃止でき、室内の美観を向上できるフィルター付換
気扇を提供できる。Effects of the invention As is clear from the above embodiments, the differential pressure sensor has the following effects:
By detecting the pressure difference between the inside of the ventilation fan and the ceiling space instead of the pressure difference between the inside of the ventilation fan and the room, it is possible to approximately know how dirty the filter is, eliminating the need for indoor pressure detection tubes and improving the aesthetics of the room. We can provide a ventilation fan with a filter that can improve the
第１図は本発明の一実施例のフィルター付換気扇の斜視
図、第２図は同フィルター付換気扇の設置状態を示す断
面図、第３図は従来のフィルター付換気扇の設置状態を
示す断面図である。
１・・・・・・換気扇本体、２・・・・・・開口部、４
・・・・・・取り付け部、５・・・・・・電動機、６・
・・・・・ファン、７・・・・・・差圧センサー本体、
８・・・・・・フィルター、１２・旧・・貫通口、１５
・・・・・・差圧表示部材。Fig. 1 is a perspective view of a ventilation fan with a filter according to an embodiment of the present invention, Fig. 2 is a sectional view showing the installation state of the ventilation fan with a filter, and Fig. 3 is a sectional view showing the installation state of a conventional ventilation fan with a filter. It is. 1... Ventilation fan body, 2... Opening, 4
...Mounting part, 5...Electric motor, 6.
...Fan, 7...Differential pressure sensor body,
8...Filter, 12.Old...through hole, 15
・・・・・・Differential pressure display member.
Claims (1)
口部と、天井への取り付け部を設けた換気扇本体と、前
記開口部を閉蓋するフィルターとを備え、前記差圧セン
サーは換気扇本体内部と換気扇本体に設けられた天井裏
との貫通口を介して換気扇本体外部の天井裏との圧力差
を検知し、この圧力差がある設定値に達したことを表示
する差圧表示部材を設けたフィルター付換気扇。The ventilation fan body has a built-in electric motor, a fan, and a differential pressure sensor body, and has an opening on the bottom surface and a ceiling attachment part, and a filter that closes the opening, and the differential pressure sensor is installed inside the ventilation fan body. A differential pressure display member is installed that detects the pressure difference between the outside of the ventilation fan body and the ceiling through a through hole between the ceiling and the ceiling provided in the ventilation fan body, and displays when this pressure difference has reached a certain set value. Ventilation fan with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33828890A JPH04208345A (en) | 1990-11-30 | 1990-11-30 | Ventilator with filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33828890A JPH04208345A (en) | 1990-11-30 | 1990-11-30 | Ventilator with filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04208345A true JPH04208345A (en) | 1992-07-30 |
Family
ID=18316720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33828890A Pending JPH04208345A (en) | 1990-11-30 | 1990-11-30 | Ventilator with filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04208345A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016009598A1 (en) * | 2016-08-09 | 2018-02-15 | Stiebel Eltron Gmbh & Co. Kg | Ventilation unit of building technology with a measuring unit |
-
1990
- 1990-11-30 JP JP33828890A patent/JPH04208345A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016009598A1 (en) * | 2016-08-09 | 2018-02-15 | Stiebel Eltron Gmbh & Co. Kg | Ventilation unit of building technology with a measuring unit |
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