JPS63270518A - Detector for filter clogging - Google Patents
Detector for filter cloggingInfo
- Publication number
- JPS63270518A JPS63270518A JP10676787A JP10676787A JPS63270518A JP S63270518 A JPS63270518 A JP S63270518A JP 10676787 A JP10676787 A JP 10676787A JP 10676787 A JP10676787 A JP 10676787A JP S63270518 A JPS63270518 A JP S63270518A
- Authority
- JP
- Japan
- Prior art keywords
- air
- filter
- clogging
- alarm
- magnetic sensor
- 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 18
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000007796 conventional method Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Emergency Alarm Devices (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明はフィルタ目詰検出器に関し、特にエアフィルタ
の目詰りに起因する風量の低下を検知することにより目
詰り状態を検出するフィルタ目詰検出器に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a filter clogging detector, and particularly to a filter clogging detector that detects a clogging state by detecting a decrease in air volume caused by air filter clogging. Regarding the detector.
［従来の技術］
一般に空冷用ファンを使用し、かつ塵埃の多い場所で使
用する装置には、その内部への塵埃の流入を防ぐため空
気取入口にエアフィルタが取付けられている。このフィ
ルタには塵埃が蓄積するため時がたつと目詰りを起４す
。この状態になると冷却効果が低下し、装置内部の温度
が規格以上に上昇してしまう。従ってこの目詰り状態を
検出する機器が必要である。[Prior Art] Generally, an air filter is attached to an air intake port of an apparatus that uses an air cooling fan and is used in a dusty place to prevent dust from flowing into the apparatus. As dust accumulates in this filter, it becomes clogged over time. In this state, the cooling effect decreases and the temperature inside the device rises above the standard. Therefore, a device is required to detect this clogging condition.
従来、この種のフィルタ目詰検出器は、装置内部に温度
センサを設置し、該温度センサによりエアフィルタの目
詰りに起因する装置内部温度の上昇を検出する構造とな
っていた。Conventionally, this type of filter clogging detector has a structure in which a temperature sensor is installed inside the device, and the temperature sensor detects an increase in the internal temperature of the device due to clogging of the air filter.
［解決すべき問題点コ
上述した従来のフィルタ目詰検出器にあっては、゛装置
内部に温度センサを設置し、該温度センサによりエアフ
ィルタの目詰りに起因する装置内部温度の上昇を検出す
る構造となっていたため、設置した温度センサが絶対温
度で動作し、装置が置かれている糧境温度により動作点
が左右される。この結果温度センサが必ずしも正しく目
詰り状態を検出しているとは言えないという欠点があっ
た。[Problems to be solved] In the conventional filter clogging detector described above, a temperature sensor is installed inside the device, and the temperature sensor detects an increase in the internal temperature of the device due to clogging of the air filter. Because of the structure, the installed temperature sensor operates at absolute temperature, and the operating point is influenced by the temperature of the food environment in which the device is placed. As a result, there is a drawback that the temperature sensor cannot necessarily accurately detect the clogging state.
［問題点の解決手段］
本発明は、上記従来の問題点を解決するためになされた
もので、その解決手段として、空気取入口に設けられた
エアフィルタの目詰りを検出するフィルタ目詰検出器に
おいて、上記エアフィルタを通過した風量に応じて回転
する回転羽根及び該回転羽根と共に回転する磁石及び該
磁石の回転数を検出する磁気センサにより構成した風量
検出部と、該風量検出部の磁気センサから送られた回転
数信号を受信し所定回転数以下の回転数信号に対応して
警報を行う警報手段を有した警報制御回路部を備えたこ
とを特徴とするフィルタ「１詰検出器を提供するもので
ある。[Means for solving problems] The present invention has been made to solve the above-mentioned conventional problems, and as a means for solving the problems, a filter clogging detection method for detecting clogging of an air filter provided at an air intake port is provided. The air volume detection unit includes a rotating blade that rotates in accordance with the volume of air that has passed through the air filter, a magnet that rotates together with the rotating blade, and a magnetic sensor that detects the number of rotations of the magnet, and a magnetic sensor of the air volume detection unit. A filter that is characterized by having an alarm control circuit section that receives a rotation speed signal sent from a sensor and issues an alarm in response to a rotation speed signal that is lower than a predetermined rotation speed. This is what we provide.
［実施例コ
次に、本発明の実施例について図面を参照して説明する
。[Embodiments] Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例に係るフィルタ目詰検出器を
装置内に実装した状態を示す概略図、第２図は第１図の
フィルタ目詰検出器の風量検出部を示す正面図、第３図
は第２図の側方断面図である。FIG. 1 is a schematic diagram showing a state in which a filter clogging detector according to an embodiment of the present invention is mounted in a device, and FIG. 2 is a front view showing an air volume detection section of the filter clogging detector shown in FIG. 1. , FIG. 3 is a side sectional view of FIG. 2.
フィルタ目詰検出器は、第１図に示す如く、装置！内を
通過する風量を検出する風量検出部２と、該風量検出部
２からの信号を受信し警報を行う警報制御回路部３とよ
りなる。The filter clogging detector is a device as shown in Figure 1! The airflow detection section 2 includes an airflow detection section 2 that detects the amount of air passing through the airflow, and an alarm control circuit section 3 that receives a signal from the airflow detection section 2 and issues an alarm.
風量検出部２は、第２図及び第３図に示す如く、ケース
４内に収納され回転軸部５を中心とする回転羽根６を備
えてなる。ケース４はその前面に通風孔７を有し、回転
軸部５はその中心に回転可能に配しである。回転軸部５
は円筒状をなし、その内部に磁石８と磁気センサ９とを
備えている。Ｍｉ磁石は回転軸部５の内周面に取付けて
あり、回転軸部５と共に回転する。磁気センサ９は回転
軸部５の内部に固定的に配設されており、磁石８の回転
数を検出し、配線１０を介して磁石８の回転数信号を警
報制御回路部３に送信する。As shown in FIGS. 2 and 3, the air volume detection section 2 is housed in a case 4 and includes a rotating blade 6 centered around a rotating shaft section 5. As shown in FIGS. The case 4 has a ventilation hole 7 on its front surface, and the rotating shaft portion 5 is rotatably arranged at the center thereof. Rotating shaft part 5
has a cylindrical shape, and is equipped with a magnet 8 and a magnetic sensor 9 inside. The Mi magnet is attached to the inner peripheral surface of the rotating shaft 5 and rotates together with the rotating shaft 5. The magnetic sensor 9 is fixedly disposed inside the rotating shaft section 5, detects the rotation speed of the magnet 8, and transmits a rotation speed signal of the magnet 8 to the alarm control circuit section 3 via the wiring 10.
一方回転羽根６はケース４の通風孔７に対面させた形で
回転軸部５に対称に４枚取付けである。これにより回転
羽根６が通風孔７を通過する空気の風圧を受けて回転し
、回転軸部５を回転させる。On the other hand, four rotating blades 6 are symmetrically attached to the rotating shaft portion 5 so as to face the ventilation holes 7 of the case 4. As a result, the rotating blade 6 rotates under the pressure of the air passing through the ventilation hole 7, thereby rotating the rotating shaft portion 5.
警報制御回路部３は、第１図に示す如く、配線１０を介
して風量検出部２と連結し、該風量検出部２の磁気セン
サ９から送られた回転数信号を受信する。この警報ル」
御回路部３には警報ランプ１１が取付けてあり、一定値
以下の回転数信号を受信した場合に警報制御回路部３に
より点灯させられるようになっている。As shown in FIG. 1, the alarm control circuit section 3 is connected to the airflow detection section 2 via wiring 10, and receives the rotational speed signal sent from the magnetic sensor 9 of the airflow detection section 2. This alarm
An alarm lamp 11 is attached to the control circuit section 3, and is turned on by the alarm control circuit section 3 when a rotation speed signal below a certain value is received.
次に、本実施例のフィルタ目詰検出器の作用について説
明する。Next, the operation of the filter clogging detector of this embodiment will be explained.
装置１内には、空気取入口１２のエアフィルタ１３を通
過した冷却用空気が冷却ファン１４の作用により流入流
出している。装置１内の空気の流れにより風量検出部２
の回転羽根６に風圧が与えられ回転羽根６が回転して回
転軸部５を介して磁石８に風量に対応した回転数を与え
る。磁石８の回転数は磁気センサ９により検出され、回
転数信号が警報制御回路部３に送信される。Cooling air that has passed through an air filter 13 in an air intake port 12 flows into and out of the device 1 by the action of a cooling fan 14 . Due to the air flow inside the device 1, the air volume detection unit 2
Wind pressure is applied to the rotating blade 6, which rotates and gives the magnet 8 a rotational speed corresponding to the amount of air through the rotating shaft portion 5. The rotation speed of the magnet 8 is detected by a magnetic sensor 9, and a rotation speed signal is transmitted to the alarm control circuit section 3.
ここでエアフィルタ１３に目詰りがない場合には、装置
１内の風量は多いため、磁気センサ９より一定値以上の
回転数信号が警報制御回路部３に送信され７報ランプ１
１は点灯しない。エアフィルタ１３に目詰りが生じた場
合には、装置１内の風量は少なくなり、磁気センサ９に
より一定値以下の回転数信号が警報制御回路部３に送信
され、警報’１１８回路部３により警報ランプ１１が点
灯ざれる。If the air filter 13 is not clogged, the air volume inside the device 1 is large, so a rotation speed signal of a certain value or more is sent from the magnetic sensor 9 to the alarm control circuit 3, and the 7-alarm lamp 1
1 does not light up. When the air filter 13 becomes clogged, the air volume inside the device 1 decreases, the magnetic sensor 9 sends a rotation speed signal below a certain value to the alarm control circuit 3, and the alarm '118 circuit 3 The alarm lamp 11 lights up.
［発明の効果］
以上説明したように本発明は、エアフィルタを通過した
風量に応じて回転する回転羽根及び該回転羽根と共に回
転する磁石及び該磁石の回転数を検出する磁気センサに
より構成した風量検出部と、該風量検出部の磁気センサ
から送られた回転数信号を受信し所定回転数以下の回転
数信号に対応して警報を行う警報手段を有した警報制御
回路部を備えたため、装置の外気温等に左右されず正し
くエアフィルタの目詰りを検出できる効果がある。[Effects of the Invention] As explained above, the present invention provides an air volume control system that includes a rotary blade that rotates in accordance with the volume of air passing through an air filter, a magnet that rotates together with the rotary blade, and a magnetic sensor that detects the rotation speed of the magnet. The device is equipped with a detection section and an alarm control circuit section having an alarm means that receives a rotation speed signal sent from the magnetic sensor of the air volume detection section and issues an alarm in response to a rotation speed signal below a predetermined rotation speed. This has the effect of accurately detecting air filter clogging regardless of the outside temperature, etc.
第１図は本発明の一実施例に係るフィルタ目詰検出器を
装置内に実装した状態を示す概略図、第２図は第１図の
フィルタ目詰検出器の風量検出部を示す正面図、第３図
は第２図の側方断面図である。
２：風量検出部
３：警報制御回路部
６：回転羽根
８：磁石
９二磁気センサ
１１：警報ランプ
１３：エアフィルタFIG. 1 is a schematic diagram showing a state in which a filter clogging detector according to an embodiment of the present invention is mounted in a device, and FIG. 2 is a front view showing an air volume detection section of the filter clogging detector shown in FIG. 1. , FIG. 3 is a side sectional view of FIG. 2. 2: Air flow detection section 3: Alarm control circuit section 6: Rotating blade 8: Magnet 9 2. Magnetic sensor 11: Alarm lamp 13: Air filter
Claims (1)
るフィルタ目詰検出器において、 上記エアフィルタを通過した風量に応じて回転する回転
羽根及び該回転羽根と共に回転する磁石及び該磁石の回
転数を検出する磁気センサにより構成した風量検出部と
、 該風量検出部の磁気センサから送られた回転数信号を受
信し所定回転数以下の回転数信号に対応して警報を行う
警報手段を有した警報制御回路部を備えたことを特徴と
するフィルタ目詰検出器。[Scope of Claims] A filter clogging detector for detecting clogging of an air filter provided at an air intake port includes a rotating blade that rotates according to the amount of air passing through the air filter, and a magnet that rotates together with the rotating blade. and an airflow detection unit configured with a magnetic sensor that detects the rotational speed of the magnet, and receives a rotational speed signal sent from the magnetic sensor of the airflow detection unit and issues an alarm in response to a rotational speed signal below a predetermined rotational speed. What is claimed is: 1. A filter clogging detector, comprising: an alarm control circuit section having an alarm means for alarming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10676787A JPS63270518A (en) | 1987-04-30 | 1987-04-30 | Detector for filter clogging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10676787A JPS63270518A (en) | 1987-04-30 | 1987-04-30 | Detector for filter clogging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63270518A true JPS63270518A (en) | 1988-11-08 |
Family
ID=14442056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10676787A Pending JPS63270518A (en) | 1987-04-30 | 1987-04-30 | Detector for filter clogging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63270518A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135108A (en) * | 1988-11-14 | 1990-05-24 | Fujitsu Ltd | Device for detecting clogging of filter |
| US6384352B1 (en) * | 1999-04-28 | 2002-05-07 | Steven Ellman | Air sensitive user input devices |
| JP2005152199A (en) * | 2003-11-25 | 2005-06-16 | Matsushita Electric Ind Co Ltd | Sauna apparatus |
| JP2006059673A (en) * | 2004-08-20 | 2006-03-02 | Victor Co Of Japan Ltd | Fuel cell driving device |
| KR100569943B1 (en) * | 1999-01-19 | 2006-04-10 | 현대자동차주식회사 | Air filter testing device |
| JP2017152594A (en) * | 2016-02-26 | 2017-08-31 | 富士機械製造株式会社 | Component loading machine, and maintenance method of air filter thereof |
-
1987
- 1987-04-30 JP JP10676787A patent/JPS63270518A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02135108A (en) * | 1988-11-14 | 1990-05-24 | Fujitsu Ltd | Device for detecting clogging of filter |
| KR100569943B1 (en) * | 1999-01-19 | 2006-04-10 | 현대자동차주식회사 | Air filter testing device |
| US6384352B1 (en) * | 1999-04-28 | 2002-05-07 | Steven Ellman | Air sensitive user input devices |
| JP2005152199A (en) * | 2003-11-25 | 2005-06-16 | Matsushita Electric Ind Co Ltd | Sauna apparatus |
| JP2006059673A (en) * | 2004-08-20 | 2006-03-02 | Victor Co Of Japan Ltd | Fuel cell driving device |
| JP4534661B2 (en) * | 2004-08-20 | 2010-09-01 | 日本ビクター株式会社 | Fuel cell drive device |
| JP2017152594A (en) * | 2016-02-26 | 2017-08-31 | 富士機械製造株式会社 | Component loading machine, and maintenance method of air filter thereof |
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