JPH01181830A - Vacuum cleaner - Google Patents
Vacuum cleanerInfo
- Publication number
- JPH01181830A JPH01181830A JP63004372A JP437288A JPH01181830A JP H01181830 A JPH01181830 A JP H01181830A JP 63004372 A JP63004372 A JP 63004372A JP 437288 A JP437288 A JP 437288A JP H01181830 A JPH01181830 A JP H01181830A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- vacuum cleaner
- sensor
- pressure sensor
- substrate
- 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.)
- Granted
Links
- 239000000428 dust Substances 0.000 claims abstract description 42
- 238000005192 partition Methods 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims abstract description 37
- 238000011144 upstream manufacturing Methods 0.000 abstract description 10
- 229910000679 solder Inorganic materials 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2836—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means characterised by the parts which are controlled
- A47L9/2842—Suction motors or blowers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
- A47L9/2821—Pressure, vacuum level or airflow
Abstract
Description
〔発明の目的〕
（産業上の利用分野）
本発明は、電気掃除機に係り、とくに、掃除機本体に内
蔵された電動送風機の回転を被掃除面条件および集塵フ
ィルターの目詰り条件に応じて自動８１１Ｂするために
吸気または排気風路中の空気の圧力を感知するセンサー
部に関する。
（従来の技術）
従来、この種のセンサー部は、たとえば第１４図ないし
第１６図に示すように、圧力管取付部１と周囲圧力感知
部２と端子部３とを有し圧力管取付部１に導かれる圧力
と周囲の圧力との相対圧力に応じた電気信号を端子部３
より出力する圧力センサー４を基板５に搭載して構成さ
れていた。
すなわち、圧力管取付部１が基板５に形成された通孔６
を介して基板５の裏面に突出するように、端子部３が基
板５の裏面の導電パターン７にはんだ８により接続され
ている。そして、基板５の裏面側において圧力センサー
４の圧力管取付部１が圧力管９の一端部に圧入接続され
、この圧力管９の他端部が掃除機本体内のたとえば吸気
風路に連通されている。なお、基板５は掃除機本体内の
風路から隔離された大気圧空間部に配設されている。
（発明が解決しようとする課題）
しかし、上記従来の構成では、センサー部が圧力管取付
部１に導かれる圧力の大気圧−に対する相対圧力を感知
するので、１個の圧力センサー４では、掃除機本体内の
風路のどこか１個所における圧力の大気圧に対する相対
圧力しか感知することができない。そのため、圧力セン
サー４が感知している圧力が変動しても、それが、集塵
フィルターの目詰りによるものなのか被掃除面の変化に
よるものなのかなどの判別ができない問題があった。
本発明は、このような問題点を解決しようとするもので
、１個の圧力センサーで、また、この圧力センサーの配
設場所によらず、掃除機本体内の風路中の２１所におけ
る圧力の差を容易に検出することができ、したがって、
圧力変化が集塵フィルターの目詰りによるものなのか被
掃除面の変化によるものなのかなども判別することがで
きる電気掃除機を提供することを目的とするものである
。さらに、圧力センサーなどの圧力管取付部に接続され
る圧力管の配管作業を容易なものとできる電気掃除機を
提供することを目的とするものである。
〔発明の構成〕
（１題を解決するための手段）
本発明の電気掃除機は、掃除機本体内に設けられた電動
送風機およびこの電動送風機の吸気側に連通する集塵室
と、前記電動送風機の回転を制御する制御回路と、前記
掃除機本体内の吸気または排気風路中の空気の圧力を感
知しこの圧力に応じた電気信号を前記［１１回路へ出力
するセンサー部とを備え、また、前記センサー部は、前
記制御回路を形成する電子部品を搭載した基板上に配設
され圧力管取付部および端子部を有し前記圧力管取付部
に導かれる圧力の周囲の圧力に対する相対圧力に応じた
電気信号を前記端子部より出力する圧力センサーと、前
記基板上に前記圧力センサーを覆って配設され圧力管取
付部を有し前記基板とともに前記圧力センサーを内蔵し
かつ外部と気密にＩＩされた隔室を形成する圧力隔壁と
を有するものである。
さらに、前記圧力センサーの圧力管取付部と前記圧力隔
壁の圧力管取付部とは前記圧力隔壁の同じ面に位置させ
てもよい。
（作用）
本発明の電気掃除機は、圧力管取付部を有する圧力隔壁
と基板とにより形成された隔室内に圧力センサーを位置
させることによって、基板の配設個所に関係なく、掃除
機本体内の風路中の２個所における圧力の差を容易に検
出できるようにしたものである。たとえば、圧力管取付
部に接続された圧力管を集塵フィルターより下流側でか
つ電動送風機より上流側に連通させ、圧力センサーの圧
力管取付部に接続された圧力管を集塵フィルターより上
流側に連通させれば、集塵フィルターの上流側と下流側
と瞬おける圧力差を検出できる。
そして、掃除中に被掃除面条件や集塵！内の集塵フィル
ターの目詰り条件の変化によって、吸気または排気風路
中の圧力が変化すると、圧力センサーの圧力管取付部に
導かれる圧力と、圧力隔壁の圧力管取付部に導かれる圧
力すなわち圧力センサーの周囲の圧力との圧力差が変化
する。たとえば、集塵フィルターの上流側と下流側とに
おける圧力差は、集塵フィルターの目詰り時大きくなり
、集塵室に連通するＩＪ＆南口が通気性の悪い敷吻で塞
がれたようなときには小さ（なる。こうした圧力差は圧
力センサーによって電気信号に変換され、この電気信号
がＩ１１＠回路に出力され、この制御回路は入力された
電気信号に応じて電動送風機の回転を適切に自動制御す
る。たとえば、上述のように集塵フィルターの上流側と
下流側とにおける圧力差を検出する場合には、圧力差が
大きいとき電動送風機の回転を速くし、圧力差が小さい
とき回転を遅くする。
さらに、圧力センサーおよび圧力隔壁の圧力管取付部を
圧力隔壁の同じ面に位置させれば、圧力センサーの圧力
管取付部が基板を貫通しないことにより、圧力センサー
などを基板に自動はんだ槽ではんだ付けすることが可能
になるとともに、両圧力管取付部にそれぞれ接続される
圧力管の配管が容易になる。
（実施例） −
以下、本発明の電気掃除機の一実施例の構成を第１図な
いし第６図に基づいて説明する。
第４図および第５図において、１１は掃除機本体で、こ
の掃除機本体１１の内部は、連通口１２を開口形成した
仕切壁１３により前後に瞑画され、この仕切壁１３より
前方が吸気風路の一部である集塵室１４となっている。
また、前記連通口１２は着脱自在の集塵フィルター１５
により覆われている。また、前記掃除機本体１１内の仕
切壁１３の後方には、掃除機本体１１と一体的に形成さ
れた保持壁１６にゴム製の支持体１８を介して電動送風
機２０が支持されており、この電動送風ｔ！１２０の吸
気側は前記連通口１２に対向連通されている。なお、こ
の電動送風機２０の吸気側と排気側とは、前側の支持体
１８により気密に仕切られている。さらに、前記フィル
ター１５と電動送風機２０の前側の吸気側との門の空間
部が、吸込風路の負圧空間部２１となプている。
また、前記掃除機本体１１には、前記集塵室１４に連通
する吸込口２２が前部に開口されているとともに、前記
電動送風ｔａ２Ｇの排気側に掃除機本体１１内の排気風
路２３を介して連通する排気口２４が後部に開口されて
いる。さらに、前記吸込口２２にはホース２５の一端部
の差込管２６が着脱自在に接続され、このホース２５の
他端部の握り管２７には延長管２８の一端部が着脱自在
に接続され、この延長管２８の他端部には床ブラシなど
の＠南口（図示せず）を下面に有する吸込口体２９の連
結管３０が着脱自在に接続されるようになっている。
また、第４図に示すように、前記掃除機本体１１内にお
いて電動送風機２０の側方には、区画壁３８により排気
風路２３と隔離された制御回路収納ｖ３９が区画形成さ
れており、この収納室３９内には、制御回路基板４０お
よびセンサー部４１が配設されている。つぎに、このセ
ンサー部４１の構成を第１図ないし第３図を加えて説明
する。
４２は圧力センサーで、この圧力センサー４２は、内部
が圧力検出孔４３ａを形成する管状の圧力管取付部４３
と周囲圧力検出孔４４と端子部４５とを有しており、周
囲圧力検出孔４４に導かれる圧力すなわち圧力センサー
４２の周囲の圧力に対する圧力管−取付部４３の圧力検
出孔４３ａに導かれる圧力の相対圧力を端子部４５より
電気信号として出力するものである。そして、第１図お
よび第２図に示すように、前記圧力センサー４２は、制
御回路基板４０上に配設され、端子部４５が基板４０に
形成された端子取付孔４６に挿通されて基板４０の裏面
の導電パターン４７にはんだ付けされて（Ｘる。前記端
子取付孔４６は端子部４５およびはんだ４８によって気
密的に塞がれている。なお、前記導電パターン４７は、
圧力センサー４２が端子部４５より出力する電気信号を
、電動送風機２０の回転を制御する制御回路に伝えるも
のである。
また、前記圧力センサー４２の圧力管取付部４３は、基
板４０に形成された通孔４９を通して基板４０の裏面側
に突出されている。なお、前記圧力管取付。
部４３と通孔４９との隙間は気密保持部材５０によって
気密的に塞がれている。
さらに、前記基板４０の表面の圧力センサー４２の周囲
には、この圧力センサー４２を覆うようにして画状の圧
力隔壁５１が固着されている。この圧力隔壁５１と基板
４０との当接部には気密保持部材５２が設けられており
、前記圧力隔壁５１と基板４０とによって囲まれ圧力セ
ンサー４２を内蔵したｗＡ至５３は、その外部の大気圧
になっている空間部から気密的に隔離されている。また
、前記圧力隔壁５１には、その内部の隔室５３に連通ず
る管状の圧力管取付部５４が外方へ突出形成されている
。
そして、第４図に示すように、前記圧力隔壁５１の圧力
管取付部５４に可撓な第１の圧力管５５の一端部が接続
されており、この第１の圧力管５５の他端部が前記電動
送風機２０と集塵フィルター１５との間の負圧空間部２
１に連通させて取付けられている。
また、前記圧力センサー４２の圧力管取付部４３に可撓
な第２の圧力管５６の一端部が接続されており″、この
第２の圧力管５６の他端部が前記集塵フィルター１５よ
り上流側の集塵室１４に連通させて取付けられている。
なお、第２図に示すように、前記制御回路基板４０上に
は、電動送風機２０のｌ制御回路を形成するＩＣ５７、
固定抵抗器５８および半固定抵抗器５９などの電子部品
が搭載されている。
つぎに、前記電動送風機２０の制御回路６１を第６図に
より説明する。
交流電源６２の両極間に、前記電動送風＄１２０と電力
制御素子であるトライアック６３とが直列に接続される
。そして、前記センサー部４１の出力用の端子部４５が
比較手段６４に接続され、この比較手段６４の出力端が
トリガ出力変換手段６５に接続され、このトリガ出力変
換手段６５の出力端がパワー制御手段６６に接続されて
いるとともに、このパワー制御手段６６の出力端が前記
トライアック６３のゲートに接続されている。また、前
記ホース２５の握り管２７に設けられたスイッチまたは
可変抵抗器などからなる手許操作部６７の出力端が前記
比較手段６４に接続されている。なお、前記手許操作部
６７と掃除機本体１１内の電気回路とは、第５図に示す
ように、この掃除機本体１１の吸込口２２近傍と前記ホ
ース２５の差込管２６とにそれぞれ設けられ互いに着脱
自在に接続されるコネクタ６８．６９を介して、電気的
に接続されるようになっている。
つぎに、この実施例の作用について説明する。
掃除時には、電動送風様２０の駆動により、吸込口体２
９の吸塵口から吸気風とともに吸込まれた塵埃は、延長
管２８およびホース２５を介して、掃除機本体１１の集
塵室１４に導かれ、集塵フィルター１５によりこの集Ｉ
Ｉ！至１４内に貯溜される。一方、排気風は排気風路２
３を介して排気口２４から■除用本体１１外へ排出され
る。
ここで、制御回路７１の作動を説明する。
センサー部４１からは、前記負圧空間部２１と集塵室１
４内とにおける圧力の差すなわち集塵フィルター１５の
上流側と下流側とにおける圧力差に応じた電気信号が制
御回路６１の比較手段６４へ出力される。この比較手段
６４は、入力された電気信号を基準値と比較し、前記圧
力差がより小さい場合には電動送風機２０の回転を下げ
るように、前記圧力差がより大きい場合には電動送風機
２０の回転を上げるように、電気信号をトリが出力変換
手段６５へ出力する。このトリガ出力変換手段６５は、
パワー制御手段６６が出力するトライアック６３へのゲ
ートトリガパルスを制御する。そして、パワーｌｌｌｌ
ｌ１手段６６は、位相ｌｌｌ１により電動送風機２０へ
の入力を制御し、この電動送風機２０の回転をｌｌ１ｉ
Ｉｌする。
また、手許操作部６７は、使用壱により操作され、電動
送風機２０をオン・オフ制御する。さらに、たとえば、
手許操作部６７を可変抵抗器などにより構成し、手許操
作部６７の操作により、比較手段６４における比較の基
準値を変えることができる構造としてもよい。
たとえば、被掃除面が通気性の悪い敷物などであって、
吸込口体２９の吸塵口が前記敷物で塞がれたときには、
前記負圧空間部２１の負圧（以下、負圧Ａと呼ぶ）と、
集塵室内の負圧（以下、負圧Ｂと呼ぶ）とがともに増大
するが、これらの負圧Ａ、Ｂの差は小さくなるので、制
ｍ回路６１は電動送風機２０をその回転数が下がるよう
に制御する。
したがって、吸込口体２９の被掃除面への吸い付きが緩
和され、吸込口体２９の走行性がよくなる。また、集塵
フィルター１５の目詰りが進行したときには、負圧Ａが
増大するのに対して、負圧Ｂは減少し、これらの負圧Ａ
、Ｂの差が大きくなるので、制御回路６１は電動送風機
２０をその回転数が上がるように制御する。したがって
、集塵フィルター１５の目詰りによる塵埃を吸込む力の
低下が補正され、吸込力が増大する。
従来のように、大気圧に対する風路中の１個所たとえば
負圧空間部２１の圧力の相対圧力を感知するのでは、上
述のような吸塵口の閉塞とｇＪ塵ラフイルター１５目詰
りとを判別できないが、上記構成によれば、風路中の２
個所の圧力差を感知できるので、吸塵口の閉塞と集塵フ
ィルター１５の目詰りとなどを判別でき、電動送風機２
０のより適切な制御が可能となる。しかも、風路中の２
個所における圧力の感知が、１個の圧力センサー４２で
、かつ、この圧力センサー４２の掃除機本体１１内にお
ける配役場所に関係なく可能となる。また、上記実施例
では、ｔ、Ｉ］Ｉ１１回路収納室３９内にセンサー部４
１を配設したが、実際には、圧力センサー４２が圧力隔
壁５１により覆われているので、掃除機本体１１内に他
の部分と気密的に隔離された圧力センサー収納室を形成
する必要がない。さらに、２個所の圧力がそれぞれ圧力
管５５．５６によってセンサー部４１に導かれるので、
圧力センサ−４２自体を圧力検出点に配設する必要がな
い。したがって、掃除機本体１１などの構造を簡単にで
きるとともに、設計における制約も少なくなり、製造性
がよい。
なお、上記実施例では、負圧空間部２１と集塵室１４内
とにおける圧力差を感知するようにしたが、風路中の他
の２個所たとえば排気風路２３と負圧空間部２１となど
における圧力差を感知するようにしてもよい。また、圧
力センサー４２を２個以上にしてもよい。
つぎに、本発明の他の実施例を説明する。なお、以下の
実施例において、先の第１実施例と対応する部分には同
一符号を付す。
第７図ないし第９図は本発明の第２実施例を示すもので
、この実施例では、圧力センサー４２は、圧力管取付部
４３が基板４０と反対側に向くようにこの基板４０に取
付けられており、前記圧力管取付部４３は、圧力隔壁５
１の図示上面部に形成された通孔７１を通ってこの圧力
隔壁５１の外部に突出されている。なお、これら圧力隔
壁５１と圧力管取付部４３との１間部分は気密保持部材
７２によって気密的に塞がれている。また、前記圧力隔
壁５１の図示上面部の前記通孔７１の近傍には、圧力管
取付部５４が前記圧力センサー４２の圧力管取付部４３
と同一方向へ突出させて形成されている。
この第２実施例の構成によれば、基板４０の導電パター
ン４１を形成した裏面側に圧力センサー４２の圧力管取
付部４３が突出しないので、基板４０にはんだ付けする
際に、自動はんだ槽によるはんだ付けが可能になり、生
産性が向上する。また、センサー部４１から出る２本の
圧力管５５．５６を同一方向に引き出すことが可能であ
り、これら圧力管５５゜５６の配管時における取りまわ
しが容易になるとともに、配管スペースも節約できる。
また、第１０図は本発明の第３実施例を示すもので、こ
の実施例では、圧力隔壁５１が、ゴムなどの弾性材から
なる気密保持部材７４を介して、基板４０にビス７５と
ナツト７６とによってねじ止めされている。
この第３実施例の構成によれば、圧力隔壁５１の基板４
０への取付けが確実になる。そして、圧力隔壁５１と基
板４０の間の気密保持部材７４がビス７５およびナツト
７６により締め付けられて圧縮されているので、圧力隔
壁５１と基板４０との間の気密性の保持が確実になり、
高い圧力をも確実に感知することが可能になる。
また、第１１図は本発明の第４実施例を示すもので、こ
の実施例では、圧力隔壁５１が、この圧力隔壁５１と基
板４０との間の気密性を保持する気密保持部材を兼ねる
接着材７８により、基板４０に接着固定されている。
この第４実施例の構成によれば、上記第３実施例などに
比べて、部品点数を削減することができるとともに、組
立てが容易になり、生産性が向上する。 。
また、第１２図は本発明の第５実施例を示すもので、こ
の実施例では、圧力隔壁５１の内部に位置して基板４０
上に、圧力センサー４２の他に、制御回路６１を形成す
る電子部品である固定抵抗器５８およびコンデンサ８０
も取付けられている。
この第５実施例の構成によれば、圧力隔壁５１の容積す
なわちこの圧力隔Ｗ５１と基板４０とによって囲まれた
隔室５３の体積を基板４０上で任意に設定することがで
き、効率よ（すなわち基板４０の上のスペースを無駄に
することなく、圧力隔壁５１内の容積を大きくすること
ができる。そして、このように圧力隔壁５１内の容積を
大きくすれば、圧力センサー４２の過敏な反応を防止す
ることができる。
また、上述のように圧力隔壁５１内の容積を任意に設定
することが容易であるが、この容積を調整することによ
り、圧力センサー４２の応答性の調整を行なうことがで
きる。
逆に、上記第１実施例などのように、圧力隔壁５１内に
おいて基板４０上に圧力センサー４２のみを取付け、圧
力隔壁５１と基板４０とによって囲まれた隔室５３の体
積が極力小さくなるようにすれば、圧力センサー４２の
応答性をよくすることができるとともに、微小な圧力の
変動も感知することが可能となる。
さらに、第１３図は本発明の第６実施例を示すもので、
この実施例では、圧力隔壁５１の圧力管取付部５４が、
圧力隔壁５１の基板４０と直交する面からこの基板４０
と平行な方向（図示右水平方向）へ突出させて設けられ
ている。
この第６実施例の構成によれば、基板４０上の高さ方向
のスペースを節約することができ、基板４０の掃除機本
体１１内への組込みが容易になる。また、圧力管５５の
取りまわしが容易になり、この圧力管５５が折れて塞が
ってしまうことを防止できる。[Purpose of the Invention] (Field of Industrial Application) The present invention relates to a vacuum cleaner, and in particular, the present invention relates to a vacuum cleaner, in particular, the rotation of an electric blower built into the vacuum cleaner body is controlled according to the conditions of the surface to be cleaned and the clogging conditions of the dust collection filter. The present invention relates to a sensor unit that senses the pressure of air in an intake or exhaust air passage in order to perform automatic operation 811B. (Prior Art) Conventionally, this type of sensor section has a pressure tube attachment section 1, an ambient pressure sensing section 2, and a terminal section 3, as shown in FIGS. 14 to 16, for example. An electric signal corresponding to the relative pressure between the pressure guided to the terminal 1 and the surrounding pressure is sent to the terminal 3.
It was constructed by mounting a pressure sensor 4 on a substrate 5, which outputs an output from the pressure sensor 4. That is, the pressure pipe attachment portion 1 is connected to the through hole 6 formed in the substrate 5.
The terminal portion 3 is connected to the conductive pattern 7 on the back surface of the substrate 5 by solder 8 so as to protrude from the back surface of the substrate 5 through the terminal portion 3 . Then, on the back side of the substrate 5, the pressure pipe attachment part 1 of the pressure sensor 4 is press-fitted to one end of the pressure pipe 9, and the other end of the pressure pipe 9 is connected to, for example, an intake air passage in the vacuum cleaner body. ing. Note that the substrate 5 is disposed in an atmospheric pressure space isolated from the air path within the cleaner body. (Problem to be Solved by the Invention) However, in the conventional configuration described above, since the sensor section senses the relative pressure of the pressure introduced to the pressure pipe attachment section 1 with respect to the atmospheric pressure, the cleaning It is only possible to sense the pressure at one point in the air passage inside the machine body relative to atmospheric pressure. Therefore, even if the pressure sensed by the pressure sensor 4 fluctuates, there is a problem in that it is not possible to determine whether the change is due to clogging of the dust filter or a change in the surface to be cleaned. The present invention aims to solve these problems, and uses one pressure sensor to measure the pressure at 21 locations in the air passage inside the vacuum cleaner body, regardless of the location of the pressure sensor. can easily detect the difference between
It is an object of the present invention to provide a vacuum cleaner that can determine whether a pressure change is due to clogging of a dust collection filter or a change in the surface to be cleaned. A further object of the present invention is to provide a vacuum cleaner that facilitates piping work for a pressure pipe connected to a pressure pipe attachment portion such as a pressure sensor. [Structure of the Invention] (Means for Solving One Problem) The vacuum cleaner of the present invention includes an electric blower provided in the vacuum cleaner body, a dust collection chamber communicating with the suction side of the electric blower, and comprising a control circuit that controls the rotation of the blower, and a sensor unit that senses the pressure of the air in the intake or exhaust air path in the vacuum cleaner body and outputs an electric signal according to this pressure to the [11] circuit, Further, the sensor section is disposed on a board on which electronic components forming the control circuit are mounted, and has a pressure tube attachment section and a terminal section, and the sensor section has a pressure tube attachment section and a terminal section, and the pressure guided to the pressure tube attachment section is a relative pressure with respect to the surrounding pressure. a pressure sensor that outputs an electrical signal from the terminal portion according to the pressure, and a pressure pipe attachment portion disposed on the substrate so as to cover the pressure sensor, the pressure sensor is built in together with the substrate, and the pressure sensor is airtight with the outside. and a pressure partition forming a second compartment. Furthermore, the pressure tube attachment portion of the pressure sensor and the pressure tube attachment portion of the pressure bulkhead may be located on the same surface of the pressure bulkhead. (Function) The vacuum cleaner of the present invention has a pressure sensor located within the compartment formed by the pressure partition wall having the pressure pipe attachment portion and the board, so that the vacuum cleaner can be installed inside the vacuum cleaner body regardless of the location of the board. This makes it possible to easily detect the difference in pressure between two locations in the air passage. For example, the pressure pipe connected to the pressure pipe attachment part is connected downstream of the dust collection filter and upstream of the electric blower, and the pressure pipe connected to the pressure pipe installation part of the pressure sensor is connected to the upstream side of the dust collection filter. By communicating with the filter, it is possible to detect the instantaneous pressure difference between the upstream and downstream sides of the dust collection filter. And while cleaning, check the conditions of the surface to be cleaned and dust collection! When the pressure in the intake or exhaust air path changes due to a change in the clogging conditions of the dust collection filter in the internal air passage, the pressure led to the pressure pipe attachment part of the pressure sensor and the pressure led to the pressure pipe attachment part of the pressure bulkhead, i.e. The pressure difference between the pressure sensor and the surrounding pressure changes. For example, the pressure difference between the upstream and downstream sides of the dust collection filter becomes large when the dust collection filter is clogged, and when the IJ & south exit communicating with the dust collection chamber is blocked by a bedding with poor ventilation. This pressure difference is converted into an electrical signal by the pressure sensor, and this electrical signal is output to the I11@ circuit, and this control circuit automatically controls the rotation of the electric blower appropriately according to the input electrical signal. For example, when detecting the pressure difference between the upstream side and the downstream side of the dust collection filter as described above, the rotation of the electric blower is increased when the pressure difference is large, and the rotation is slowed down when the pressure difference is small. Furthermore, if the pressure sensor and the pressure pipe attachment part of the pressure bulkhead are located on the same side of the pressure bulkhead, the pressure pipe attachment part of the pressure sensor will not penetrate the board, so the pressure sensor etc. can be soldered to the board in an automatic soldering bath. At the same time, the piping of the pressure pipes connected to both pressure pipe attachment parts becomes easy. The explanation will be given based on Figures 4 and 6. In Figures 4 and 5, 11 is a vacuum cleaner body, and the inside of this cleaner body 11 is closed back and forth by a partition wall 13 in which a communication port 12 is formed. The area in front of this partition wall 13 is a dust collection chamber 14 which is a part of the intake air passage.
covered by. Further, behind the partition wall 13 in the vacuum cleaner main body 11, an electric blower 20 is supported by a holding wall 16 formed integrally with the vacuum cleaner main body 11 via a rubber support 18. This electric blower T! The intake side of 120 faces and communicates with the communication port 12 . Note that the intake side and the exhaust side of this electric blower 20 are airtightly partitioned by a support member 18 on the front side. Further, the space between the filter 15 and the front intake side of the electric blower 20 forms a negative pressure space 21 of the intake air path. Further, the vacuum cleaner body 11 has a suction port 22 opened in the front part that communicates with the dust collection chamber 14, and an exhaust air passage 23 in the vacuum cleaner body 11 is connected to the exhaust side of the electric blower ta2G. An exhaust port 24 is opened at the rear portion and communicates with the vehicle through the exhaust port 24 . Further, an insertion tube 26 at one end of a hose 25 is detachably connected to the suction port 22, and one end of an extension tube 28 is detachably connected to a grip tube 27 at the other end of the hose 25. A connecting pipe 30 of a suction port body 29 having a south port (not shown) such as a floor brush on the lower surface is detachably connected to the other end of the extension pipe 28. Further, as shown in FIG. 4, a control circuit storage v39 separated from the exhaust air passage 23 by a partition wall 38 is defined on the side of the electric blower 20 in the vacuum cleaner main body 11. Inside the storage chamber 39, a control circuit board 40 and a sensor section 41 are arranged. Next, the configuration of this sensor section 41 will be explained with reference to FIGS. 1 to 3. Reference numeral 42 denotes a pressure sensor, and this pressure sensor 42 has a tubular pressure pipe attachment part 43 whose inside forms a pressure detection hole 43a.
, an ambient pressure detection hole 44 and a terminal portion 45, and the pressure guided to the pressure detection hole 43a of the pressure pipe-attachment portion 43 with respect to the pressure guided to the ambient pressure detection hole 44, that is, the pressure surrounding the pressure sensor 42. The relative pressure is output from the terminal portion 45 as an electrical signal. As shown in FIGS. 1 and 2, the pressure sensor 42 is disposed on the control circuit board 40, and the terminal portion 45 is inserted into the terminal mounting hole 46 formed in the board 40. The terminal mounting hole 46 is hermetically closed by the terminal portion 45 and the solder 48.The conductive pattern 47 is
An electrical signal output from the pressure sensor 42 from the terminal portion 45 is transmitted to a control circuit that controls the rotation of the electric blower 20. Further, the pressure tube attachment portion 43 of the pressure sensor 42 projects to the back side of the substrate 40 through a through hole 49 formed in the substrate 40. In addition, the above-mentioned pressure pipe installation. The gap between the portion 43 and the through hole 49 is hermetically closed by an airtight retaining member 50. Further, a picture-shaped pressure partition wall 51 is fixed around the pressure sensor 42 on the surface of the substrate 40 so as to cover the pressure sensor 42. An airtight maintaining member 52 is provided at the abutment portion between the pressure partition wall 51 and the substrate 40, and the wA to 53, which is surrounded by the pressure partition wall 51 and the substrate 40 and has a built-in pressure sensor 42, is It is airtightly isolated from the atmospheric pressure space. Further, the pressure partition wall 51 is formed with a tubular pressure pipe attachment portion 54 projecting outward and communicating with the compartment 53 inside the pressure partition wall 51 . As shown in FIG. 4, one end of a flexible first pressure pipe 55 is connected to the pressure pipe attachment portion 54 of the pressure partition wall 51, and the other end of the first pressure pipe 55 is connected to the pressure pipe attachment portion 54 of the pressure partition wall 51. is the negative pressure space 2 between the electric blower 20 and the dust collection filter 15
It is installed in communication with 1. Further, one end of a flexible second pressure pipe 56 is connected to the pressure pipe attachment portion 43 of the pressure sensor 42, and the other end of the second pressure pipe 56 is connected to the It is installed in communication with the dust collection chamber 14 on the upstream side.As shown in FIG.
Electronic components such as a fixed resistor 58 and a semi-fixed resistor 59 are mounted. Next, the control circuit 61 of the electric blower 20 will be explained with reference to FIG. The electric blower $120 and a triac 63, which is a power control element, are connected in series between both poles of the AC power source 62. The output terminal section 45 of the sensor section 41 is connected to a comparison means 64, the output end of this comparison means 64 is connected to a trigger output conversion means 65, and the output end of this trigger output conversion means 65 is connected to a power control means 64. The output terminal of the power control means 66 is connected to the gate of the triac 63. Further, an output end of a manual operation section 67, which is a switch or a variable resistor provided on the grip tube 27 of the hose 25, is connected to the comparison means 64. As shown in FIG. 5, the manual operation section 67 and the electric circuit in the vacuum cleaner main body 11 are provided near the suction port 22 of the vacuum cleaner main body 11 and in the insertion pipe 26 of the hose 25, respectively. They are electrically connected via connectors 68 and 69 which are detachably connected to each other. Next, the operation of this embodiment will be explained. During cleaning, the suction port body 2 is driven by the electric blower 20.
The dust sucked in from the dust suction port 9 along with the intake air is guided to the dust collection chamber 14 of the cleaner main body 11 via the extension pipe 28 and the hose 25, and is collected by the dust collection filter 15.
I! It is stored within 14 days. On the other hand, the exhaust air is from exhaust air path 2.
3 to the outside of the removal main body 11 from the exhaust port 24. Here, the operation of the control circuit 71 will be explained. From the sensor unit 41, the negative pressure space 21 and the dust collection chamber 1 are detected.
An electric signal corresponding to the pressure difference between the upstream side and the downstream side of the dust collecting filter 15 is output to the comparing means 64 of the control circuit 61. This comparison means 64 compares the input electric signal with a reference value, and when the pressure difference is smaller, the rotation of the electric blower 20 is decreased, and when the pressure difference is larger, the rotation of the electric blower 20 is decreased. The bird outputs an electrical signal to the output conversion means 65 to increase the rotation. This trigger output conversion means 65 is
A gate trigger pulse to the triac 63 outputted by the power control means 66 is controlled. And power lllll
The l1 means 66 controls the input to the electric blower 20 according to the phase lll1, and controls the rotation of the electric blower 20 according to the phase lll1.
Ill do it. Further, the hand-operated operation unit 67 is operated depending on the user and controls the electric blower 20 on and off. Furthermore, for example,
The hand-operated operation section 67 may be configured with a variable resistor or the like, and the reference value for comparison in the comparison means 64 can be changed by operating the hand-operated operation section 67. For example, if the surface to be cleaned is a rug with poor ventilation,
When the dust inlet of the inlet body 29 is covered with the rug,
Negative pressure in the negative pressure space 21 (hereinafter referred to as negative pressure A);
Although the negative pressure in the dust collection chamber (hereinafter referred to as negative pressure B) both increases, the difference between these negative pressures A and B becomes smaller, so the control m circuit 61 causes the electric blower 20 to decrease its rotation speed. Control as follows. Therefore, the adhesion of the suction port body 29 to the surface to be cleaned is alleviated, and the running performance of the suction port body 29 is improved. Further, when the clogging of the dust filter 15 progresses, the negative pressure A increases, while the negative pressure B decreases, and these negative pressures A
, B increases, so the control circuit 61 controls the electric blower 20 to increase its rotational speed. Therefore, a decrease in the ability to suck in dust due to clogging of the dust collecting filter 15 is corrected, and the suction force is increased. Conventionally, by sensing the relative pressure of one place in the air passage, for example, the negative pressure space 21, with respect to the atmospheric pressure, it is difficult to distinguish between the above-mentioned blockage of the dust suction port and clogging of the gJ dust filter 15. However, according to the above configuration, two
Since pressure differences can be detected at different locations, it is possible to distinguish between blockages in the dust suction port and clogging in the dust collection filter 15.
0 can be controlled more appropriately. Moreover, 2 in the wind path
It is possible to sense the pressure at a location with one pressure sensor 42, regardless of the location of this pressure sensor 42 in the cleaner body 11. Further, in the above embodiment, the sensor section 4 is provided in the t, I]I11 circuit storage chamber 39.
However, in reality, the pressure sensor 42 is covered by the pressure partition wall 51, so it is necessary to form a pressure sensor storage chamber in the vacuum cleaner body 11 that is airtightly isolated from other parts. do not have. Furthermore, since the pressure at the two locations is guided to the sensor section 41 by pressure pipes 55 and 56,
There is no need to arrange the pressure sensor 42 itself at the pressure detection point. Therefore, the structure of the cleaner body 11 and the like can be simplified, and there are fewer restrictions on the design, resulting in good manufacturability. In the above embodiment, the pressure difference between the negative pressure space 21 and the dust collection chamber 14 is sensed, but the pressure difference is detected at other two locations in the air path, such as the exhaust air path 23 and the negative pressure space 21. It may also be possible to sense the pressure difference between the two. Further, the number of pressure sensors 42 may be two or more. Next, other embodiments of the present invention will be described. In the following embodiments, parts corresponding to those in the first embodiment are given the same reference numerals. 7 to 9 show a second embodiment of the present invention. In this embodiment, the pressure sensor 42 is attached to the substrate 40 so that the pressure tube attachment portion 43 faces the opposite side of the substrate 40. The pressure pipe attachment portion 43 is connected to the pressure partition wall 5.
It protrudes to the outside of this pressure partition wall 51 through a through hole 71 formed in the illustrated upper surface portion of the pressure partition wall 51 . Note that a portion between the pressure partition wall 51 and the pressure tube attachment portion 43 is hermetically closed by an airtight retaining member 72. Further, in the vicinity of the through hole 71 on the upper surface of the pressure partition wall 51 in the drawing, a pressure pipe attachment portion 54 is attached to the pressure tube attachment portion 43 of the pressure sensor 42.
It is formed to protrude in the same direction as. According to the configuration of the second embodiment, since the pressure pipe attachment portion 43 of the pressure sensor 42 does not protrude from the back side of the substrate 40 on which the conductive pattern 41 is formed, when soldering the pressure sensor 42 to the substrate 40, an automatic soldering bath is used. Soldering becomes possible, improving productivity. Furthermore, the two pressure pipes 55 and 56 coming out of the sensor section 41 can be drawn out in the same direction, making it easier to route these pressure pipes 55 and 56 during piping, and saving space for piping. FIG. 10 shows a third embodiment of the present invention. In this embodiment, a pressure partition 51 is attached to a base plate 40 via a screw 75 and a nut via an airtight member 74 made of an elastic material such as rubber. It is screwed by 76. According to the configuration of this third embodiment, the substrate 4 of the pressure partition 51
Installation to 0 is ensured. Since the airtight retaining member 74 between the pressure partition 51 and the substrate 40 is tightened and compressed by the screws 75 and nuts 76, the airtightness between the pressure partition 51 and the substrate 40 is ensured.
It becomes possible to reliably sense even high pressure. Further, FIG. 11 shows a fourth embodiment of the present invention, in which the pressure partition 51 is bonded with an adhesive that also serves as an airtightness maintaining member for maintaining airtightness between the pressure partition 51 and the substrate 40. It is adhesively fixed to the substrate 40 by a material 78. According to the configuration of the fourth embodiment, the number of parts can be reduced compared to the third embodiment, etc., and assembly is facilitated, thereby improving productivity. . Further, FIG. 12 shows a fifth embodiment of the present invention, in which a substrate 40 is located inside a pressure partition 51.
Above, in addition to the pressure sensor 42, a fixed resistor 58 and a capacitor 80, which are electronic components forming the control circuit 61, are shown.
is also installed. According to the configuration of the fifth embodiment, the volume of the pressure partition wall 51, that is, the volume of the partition chamber 53 surrounded by the pressure partition W51 and the substrate 40 can be arbitrarily set on the substrate 40, and the efficiency ( That is, the volume inside the pressure partition wall 51 can be increased without wasting the space above the substrate 40.If the volume inside the pressure partition wall 51 is increased in this way, the sensitive reaction of the pressure sensor 42 can be reduced. Furthermore, as described above, it is easy to arbitrarily set the volume inside the pressure partition wall 51, but by adjusting this volume, the responsiveness of the pressure sensor 42 can be adjusted. Conversely, as in the first embodiment, only the pressure sensor 42 is mounted on the substrate 40 within the pressure partition 51, and the volume of the compartment 53 surrounded by the pressure partition 51 and the substrate 40 is minimized. If it is made smaller, the responsiveness of the pressure sensor 42 can be improved, and it is also possible to detect minute pressure fluctuations.Furthermore, FIG. 13 shows a sixth embodiment of the present invention. Something,
In this embodiment, the pressure pipe attachment portion 54 of the pressure bulkhead 51 is
This substrate 40 is viewed from the surface of the pressure partition 51 perpendicular to the substrate 40.
It is provided so as to protrude in a direction parallel to (horizontal direction to the right in the figure). According to the configuration of the sixth embodiment, the space on the substrate 40 in the height direction can be saved, and the substrate 40 can be easily incorporated into the cleaner main body 11. Further, the pressure pipe 55 can be easily handled, and the pressure pipe 55 can be prevented from being bent and blocked.
本発明によれば、圧力管取付部に導かれる圧力と周囲の
圧力との相対圧力を感知する圧力センサーを基板に配設
するとともに、圧力管取付部を有する圧力隔壁により圧
力センサーを気密的に覆ったので、１個の圧力センサー
で、また、この圧力センサーの掃除機本体内における配
設場所によらず、掃除機本体内の風路中の２個所におけ
る圧力の差を検出することが容易に可能となり、風路中
の１つの置点における圧力の変化がその点よりも上流側
における変化によるものなのか下流側における変化によ
るものなのかも判別可能となる。
たとえば、集塵フィルターの上流側と下流側とにおける
圧力差を検出すれば、集塵フィルターの目詰り時と被掃
除面による吸塵口の閉塞時とを区別することができ、電
動送風機のより適切な制御が可能となる。また、掃除機
本体内に他の部分と気密的に隔離された圧力センサー収
納室を形成する必要がないとともに、２か所の圧力がそ
れぞれ圧力管によってセンサー部に導かれることにより
、圧力センサー自体を圧力検出点に配設する必要がない
ので、掃除機本体など構造を簡単にできるとともに、設
計における制約も少なくなり、製造性がよい。
さらに、圧力センサーおよび圧力隔壁の圧力管取付部を
圧力隔壁の同じ面に位置させることにより、圧力センサ
ーの圧力管取付部が基板を貫通しないので、基板に圧力
センサーなどをはんだ付けする際に自動はんだ槽による
はんだ付けが可能になり、また、両圧力管取付部にそれ
ぞれ接続される圧力管の配管において、センサー部から
出る２本の圧力管を同一方向に引き出すことが可能にな
り、圧力管の取りまわしが容易になるとともに、配管ス
ペースも節約でき、Ｗ遡性が向上する。According to the present invention, a pressure sensor that senses the relative pressure between the pressure guided to the pressure pipe attachment part and the surrounding pressure is disposed on the substrate, and the pressure sensor is airtightly mounted by the pressure bulkhead having the pressure pipe attachment part. Since it is covered, it is easy to detect the difference in pressure between two locations in the air passage inside the vacuum cleaner body with just one pressure sensor, regardless of the location of this pressure sensor inside the vacuum cleaner body. It becomes possible to determine whether a change in pressure at one point in the air path is due to a change upstream or downstream of that point. For example, by detecting the pressure difference between the upstream and downstream sides of a dust collection filter, it is possible to distinguish between the dust collection filter being clogged and the dust suction port being blocked by the surface to be cleaned. control is possible. In addition, there is no need to form a pressure sensor storage chamber that is airtightly isolated from other parts within the vacuum cleaner body, and the pressure sensor itself is Since there is no need to arrange the vacuum cleaner at the pressure detection point, the structure of the vacuum cleaner body etc. can be simplified, and there are fewer restrictions on the design, resulting in good manufacturability. Furthermore, by locating the pressure sensor and the pressure pipe attachment part of the pressure bulkhead on the same side of the pressure bulkhead, the pressure pipe attachment part of the pressure sensor does not penetrate the board, so it is easy to solder the pressure sensor etc. to the board. Soldering using a solder bath is now possible, and in the piping of the pressure pipes connected to both pressure pipe attachment parts, it is now possible to pull out the two pressure pipes coming out of the sensor part in the same direction. This makes it easier to route the pipes, saves piping space, and improves W retraceability.
第１図は本発明の電気掃除機の第１実施例を示すセンサ
ー部の断面図、第２図は同上センサー部の斜視図、第３
図は同上圧力センサーの斜視図、第４図は同上掃除機本
体の一部を切り欠いた平面図、第５図は同上全体の斜視
図、第６図は同上ブロック図、第７図は本発明の第２の
実施例を示すセンサー部の断面図、第８図は同上センサ
ー部の斜視図、第９図は同上圧力センサーの斜視図、第
１０図は本発明の第３実施例を示すセンサー部の断面図
、第１１図は本発明の第４実施例を示すセンサー部の断
面図、第１２図は本発明の第５実施例を示すセンサー部
の断面図、第１３図は本発明の第６実施例を示すセンサ
ー部の断面図、第１４図は従来の電気掃除機の一例を示
すセンサー部の断面図、第１５図は同上センサー部の斜
視図、第１６図は圧力センサーの斜視図である。
１１・・掃除機本体、１４・・集塵室、２０・・電動送
風機、２１・・吸気風路である負圧空間部、２３・・排
気風路、４０・・基板、４１・・センサー部、４２・・
圧力センサー、４３・・圧力センサーの圧力管取付部、
４５・・端子部、５１・・圧力隔壁、５３・・隔室、５
４・・圧力隔壁の圧力管取付部、５７・・電子部品であ
るＩＣ１５８・・電子部品である固定抵抗器、５９・・
電子部品である半固定抵抗器、６１・・１１１１０回路
、８０・・電子部品であるコンデンサ。
昭和６３年１月１２日
発 明 者 １） 中 弘 之
特許出願人 東京電気株式会社
遵−しΔFIG. 1 is a sectional view of a sensor section showing a first embodiment of the vacuum cleaner of the present invention, FIG. 2 is a perspective view of the same sensor section, and FIG.
The figure is a perspective view of the pressure sensor as above, Figure 4 is a partially cutaway plan view of the vacuum cleaner body as above, Figure 5 is a perspective view of the entire vacuum cleaner as above, Figure 6 is a block diagram as above, Figure 7 is the main body of the cleaner FIG. 8 is a perspective view of the sensor section, FIG. 9 is a perspective view of the pressure sensor, and FIG. 10 is a third embodiment of the invention. 11 is a cross-sectional view of the sensor portion showing a fourth embodiment of the present invention; FIG. 12 is a cross-sectional view of the sensor portion showing a fifth embodiment of the present invention; FIG. 13 is a cross-sectional view of the sensor portion showing the fifth embodiment of the present invention. 14 is a sectional view of the sensor section showing an example of a conventional vacuum cleaner, FIG. 15 is a perspective view of the same sensor section, and FIG. 16 is a view of the pressure sensor. FIG. 11. Vacuum cleaner body, 14. Dust collection chamber, 20. Electric blower, 21. Negative pressure space which is an intake air path, 23. Exhaust air path, 40. Board, 41. Sensor section , 42...
Pressure sensor, 43...pressure sensor pressure pipe attachment part,
45...Terminal part, 51...Pressure bulkhead, 53...Compartment, 5
4...Pressure pipe attachment part of pressure bulkhead, 57...IC158, which is an electronic component...Fixed resistor, which is an electronic component, 59...
Semi-fixed resistor which is an electronic component, 61...11110 circuit, 80... Capacitor which is an electronic component. January 12, 1988 Inventor 1) Hiroshi Naka Patent applicant Tokyo Electric Co., Ltd.
Claims (2)
電動送風機の吸気側に連通する集塵室と、前記電動送風
機の回転を制御する制御回路と、前記掃除機本体内の風
路中の空気の圧力を感知しこの圧力に応じた電気信号を
前記制御回路へ出力するセンサー部とを備えた電気掃除
機において、前記センサー部は、前記制御回路を形成す
る電子部品を搭載した基板上に配設され圧力管取付部お
よび端子部を有し前記圧力管取付部に導かれる圧力と周
囲の圧力との相対圧力を前記端子部より電気信号として
出力する圧力センサーと、前記基板上に前記圧力センサ
ーを覆つて配設され圧力管取付部を有し前記基板ととも
に前記圧力センサーを内蔵しかつ外部と気密に隔離され
た隔室を形成する圧力隔壁とを有することを特徴とする
電気掃除機。(1) An electric blower provided in the vacuum cleaner body, a dust collection chamber communicating with the intake side of the electric blower, a control circuit that controls the rotation of the electric blower, and an air path in the vacuum cleaner body. In the vacuum cleaner, the vacuum cleaner includes a sensor unit that senses air pressure and outputs an electric signal according to the pressure to the control circuit, wherein the sensor unit is mounted on a board on which electronic components forming the control circuit are mounted. a pressure sensor that is arranged and has a pressure pipe attachment part and a terminal part and outputs a relative pressure between the pressure guided to the pressure pipe attachment part and the surrounding pressure from the terminal part as an electric signal; 1. A vacuum cleaner, comprising: a pressure pipe mounting part disposed over a sensor; a pressure partition wall containing the pressure sensor together with the substrate; and forming a compartment airtightly isolated from the outside.
の圧力管取付部とを前記圧力隔壁の同じ面に位置させた
ことを特徴とする請求項１記載の電気掃除機。(2) The vacuum cleaner according to claim 1, wherein the pressure pipe attachment portion of the pressure sensor and the pressure tube attachment portion of the pressure bulkhead are located on the same surface of the pressure bulkhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63004372A JP2612288B2 (en) | 1988-01-12 | 1988-01-12 | Electric vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63004372A JP2612288B2 (en) | 1988-01-12 | 1988-01-12 | Electric vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01181830A true JPH01181830A (en) | 1989-07-19 |
| JP2612288B2 JP2612288B2 (en) | 1997-05-21 |
Family
ID=11582536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63004372A Expired - Fee Related JP2612288B2 (en) | 1988-01-12 | 1988-01-12 | Electric vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2612288B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007073317A1 (en) * | 2005-12-21 | 2007-06-28 | Atlas Copco Rock Drills Ab | Particle separator for separating drill cuttings from an air flow and a drill rig as well as a method for controlling a particle separator |
| DE102010031572A1 (en) * | 2010-07-20 | 2012-01-26 | BSH Bosch und Siemens Hausgeräte GmbH | Device for controlling the power of a blower motor for a vacuum cleaner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013223864A1 (en) | 2013-11-21 | 2015-05-21 | BSH Hausgeräte GmbH | Method of operating a vacuum cleaner and vacuum cleaner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62217932A (en) * | 1986-02-05 | 1987-09-25 | インタ−ラバ アクチエンゲゼルシヤフト | Optical display and function monitor apparatus of vacuum cleaner |
-
1988
- 1988-01-12 JP JP63004372A patent/JP2612288B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62217932A (en) * | 1986-02-05 | 1987-09-25 | インタ−ラバ アクチエンゲゼルシヤフト | Optical display and function monitor apparatus of vacuum cleaner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007073317A1 (en) * | 2005-12-21 | 2007-06-28 | Atlas Copco Rock Drills Ab | Particle separator for separating drill cuttings from an air flow and a drill rig as well as a method for controlling a particle separator |
| JP2009521309A (en) * | 2005-12-21 | 2009-06-04 | アトラス コプコ ロツク ドリルス アクチボラグ | Particle separator for separating perforated cutting powder from air flow, drilling rig, and control method for particle separator |
| DE102010031572A1 (en) * | 2010-07-20 | 2012-01-26 | BSH Bosch und Siemens Hausgeräte GmbH | Device for controlling the power of a blower motor for a vacuum cleaner |
| DE102010031572B4 (en) * | 2010-07-20 | 2013-02-21 | BSH Bosch und Siemens Hausgeräte GmbH | Device for controlling the power of a blower motor for a vacuum cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2612288B2 (en) | 1997-05-21 |
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