JPH1199096A - Vacuum cleaner - Google Patents
Vacuum cleanerInfo
- Publication number
- JPH1199096A JPH1199096A JP9263113A JP26311397A JPH1199096A JP H1199096 A JPH1199096 A JP H1199096A JP 9263113 A JP9263113 A JP 9263113A JP 26311397 A JP26311397 A JP 26311397A JP H1199096 A JPH1199096 A JP H1199096A
- Authority
- JP
- Japan
- Prior art keywords
- fan motor
- temperature
- detecting means
- temperature detecting
- thermistor
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Electric Suction Cleaners (AREA)
- Electric Vacuum Cleaner (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ファンモータの温
度過昇防止機能を有する電気掃除機に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner having a function of preventing a fan motor from overheating.
【０００２】[0002]
【従来の技術】従来の電気掃除機は、図１７に示すよう
に、掃除機本体１の前方に集塵室とその後方にファンモ
ータ室を設け、ファンモータ室に吸込力を発生するファ
ンモータ２を配していた。このファンモータ２の吸込力
により、集塵室内に塵埃を吸い込み、集塵するようにし
ていた。2. Description of the Related Art As shown in FIG. 17, a conventional vacuum cleaner is provided with a dust collecting chamber in front of a cleaner body 1 and a fan motor chamber behind the same, and a fan motor for generating suction force in the fan motor chamber. I had two. By the suction force of the fan motor 2, dust is sucked into the dust collection chamber and collected.
【０００３】ところで、ファンモータ２の過負荷状態、
または何らかの原因によりファンモータ２の温度が異常
に上昇したときに、ファンモータ２の通電を遮断して安
全性を確保するために、温度過昇防止用サーモスタット
７１を用いていた。このサーモスタット７１はファンモ
ータ２の通電が遮断された後、温度が下がったら短時間
で復帰できるように自動復帰式でかつファンモータ２の
下部に配置されていた。By the way, when the fan motor 2 is overloaded,
Alternatively, when the temperature of the fan motor 2 rises abnormally due to some cause, the thermostat 71 for preventing overheating is used in order to shut off the power supply to the fan motor 2 and to ensure safety. The thermostat 71 is of an automatic reset type and is arranged below the fan motor 2 so that the thermostat 71 can be returned in a short time when the temperature drops after the energization of the fan motor 2 is cut off.
【０００４】また、図１８に示すようにサーミスタ５を
ファンモータ２の排気孔２ｂの近傍もしくはファンモー
タ２のファン２ａよりも下流側のファンモータ２の内部
に配設し、このサーミスタ３の検知温度に応じてファン
モータ２の通電量を可変する制御装置３を有していた。As shown in FIG. 18, a thermistor 5 is disposed near the exhaust hole 2b of the fan motor 2 or inside the fan motor 2 downstream of the fan 2a of the fan motor 2 to detect the thermistor 3. There was a control device 3 that varies the amount of current supplied to the fan motor 2 according to the temperature.
【０００５】[0005]
【発明が解決しようとする課題】上述するような従来の
技術では、まず図１７に示す方法の場合は、サーモスタ
ット７１を用いて、ファンモータ２下部の上昇温度に対
応して、温度過昇防止を行っているため、ある一定の温
度でしかファンモータ２の通電を制御できなかった。従
って作動時は通電を遮断する方式を用いていた。また、
サーモスタット７１が一度作動するとサーモスタット７
１が冷却されて復帰するまでに２０分〜４０分間程度の
時間を要するので使用上不便であった。In the prior art as described above, first, in the case of the method shown in FIG. 17, a thermostat 71 is used to prevent an excessive rise in temperature in response to the rise in the temperature of the lower portion of the fan motor 2. Therefore, energization of the fan motor 2 could be controlled only at a certain temperature. Therefore, a method of shutting off the current during operation was used. Also,
Once the thermostat 71 operates, the thermostat 7
It took about 20 to 40 minutes for 1 to cool and return, which was inconvenient for use.
【０００６】また、図１８に示す方法の場合は、サーミ
スタ５を用いてファンモータ２の通電を制御している
が、サーミスタ５をファンモータ２の排気孔２ｂの近傍
もしくはファンモータ２のファン２ａよりも下流側のフ
ァンモータ２の内部に配設しているため、ファンモータ
２内を通る風の影響を受け、実際の温度に対するばらつ
きが大きく、信頼性の低い構成となっていた。In the case of the method shown in FIG. 18, the energization of the fan motor 2 is controlled using the thermistor 5, but the thermistor 5 is located near the exhaust hole 2b of the fan motor 2 or the fan 2a of the fan motor 2. Since the fan motor 2 is disposed inside the fan motor 2 on the downstream side, the structure is affected by the wind passing through the fan motor 2, has a large variation with respect to the actual temperature, and has a low reliability.
【０００７】本発明は、以上のような従来の課題を解決
しようとするものであって、簡単な構成で、しかも感度
良く本体内の温度を検出し、その値からファンモータの
通電量を可変する電気掃除機を提供することを目的とし
ている。SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned conventional problems, and detects the temperature in the main body with a simple configuration and with high sensitivity, and varies the amount of current supplied to the fan motor from the detected value. The purpose is to provide a vacuum cleaner that does.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に本発明は、吸込力を発生するファンモータと、掃除機
本体内の温度を検知する温度検知手段と、前記温度検知
手段の検知温度に応じて前記ファンモータへの通電量を
可変する制御回路を備え、前記温度検知手段を前記ファ
ンモータの上部でかつ前記排気口からの排気風に影響さ
れない位置に配しているので、確実にファンモータ上部
の温度を温度検知手段で検知でき、この検知温度に応じ
て前記ファンモータへの通電量を可変しているので、フ
ァンモータへの通電を遮断することなく温度過昇防止が
行え、結果、電気掃除機の使用性向上の効果がある。SUMMARY OF THE INVENTION To achieve the above object, the present invention provides a fan motor for generating a suction force, a temperature detecting means for detecting a temperature in a cleaner body, and a temperature detected by the temperature detecting means. And a control circuit that varies the amount of current supplied to the fan motor in accordance with the above.The temperature detection means is disposed at a position above the fan motor and at a position not affected by the exhaust air from the exhaust port, so The temperature of the upper part of the fan motor can be detected by the temperature detecting means, and the amount of power supply to the fan motor is varied according to the detected temperature, so that excessive temperature rise can be prevented without interrupting power supply to the fan motor, As a result, there is an effect of improving the usability of the vacuum cleaner.
【０００９】[0009]
【発明の実施の形態】本発明の請求項１記載の発明は、
排気口を有し吸込力を発生するファンモータと、掃除機
本体内の温度を検知する温度検知手段と、前記温度検知
手段の検知温度に応じて前記ファンモータへの通電量を
可変する制御回路を備え、前記温度検知手段を前記ファ
ンモータの上部でかつ前記排気口からの排気風に影響さ
れない位置に配しているので確実にファンモータ上部の
温度を温度検知手段で検知でき、この検知温度に応じて
前記ファンモータへの通電量を可変しているので、ファ
ンモータへの通電を遮断することなく温度過昇防止が行
え、結果、電気掃除機の使用性向上の効果がある。BEST MODE FOR CARRYING OUT THE INVENTION
A fan motor having an exhaust port for generating a suction force, a temperature detecting means for detecting a temperature inside the cleaner body, and a control circuit for varying an amount of electricity supplied to the fan motor according to a temperature detected by the temperature detecting means. Since the temperature detecting means is disposed above the fan motor and at a position not affected by the exhaust air from the exhaust port, the temperature of the fan motor can be reliably detected by the temperature detecting means. Since the amount of current supplied to the fan motor is varied according to the temperature, it is possible to prevent the temperature from excessively rising without interrupting the current supplied to the fan motor. As a result, the usability of the vacuum cleaner is improved.
【００１０】本発明の請求項２記載の発明は、請求項１
記載の発明に加え、制御回路の電子部品と共に温度検知
手段を搭載した基板を有し、前記基板をファンモータの
上部に配し、かつ前記温度検知手段を前記基板のファン
モータ側の面に配しているので組立性、作業性が向上す
る。The second aspect of the present invention is the first aspect.
In addition to the invention described in the above, further comprising a substrate on which a temperature detecting means is mounted together with electronic components of a control circuit, wherein the substrate is disposed on an upper portion of a fan motor, and the temperature detecting means is disposed on a surface of the substrate on a fan motor side. As a result, assemblability and workability are improved.
【００１１】本発明の請求項３記載の発明は、請求項１
記載の発明に加え、制御回路の電子部品と共に温度検知
手段を搭載した基板を有し、前記基板をファンモータの
上部に配し、前記温度検知手段を前記基板のファンモー
タと反対側の面に配し、かつ温度検知手段とファンモー
タとの間に位置する基板の一部を切り欠いているもので
ある。この構成によれば、温度検知手段を含む全ての電
子部品を基板の上面に配することができ、より組立性、
作業性が向上し、結果安価な電気掃除機を提供できる。
また、ファンモータの温度検知は切り欠きを介して精度
よく行われる。The third aspect of the present invention is the first aspect of the present invention.
In addition to the invention described above, a substrate having a temperature detection unit mounted thereon together with electronic components of a control circuit is provided, and the substrate is disposed above a fan motor, and the temperature detection unit is provided on a surface of the substrate opposite to the fan motor. And a part of the substrate located between the temperature detecting means and the fan motor is cut away. According to this configuration, all the electronic components including the temperature detecting means can be arranged on the upper surface of the substrate, so that the assemblability can be improved.
Workability is improved, and as a result, an inexpensive vacuum cleaner can be provided.
Further, the temperature detection of the fan motor is accurately performed through the notch.
【００１２】本発明の請求項４記載の発明は、排気口を
有し吸込力を発生するファンモータと、掃除機本体内の
温度を検知する温度検知手段と、前記温度検知手段の検
知温度に応じて前記ファンモータへの通電量を可変する
制御回路と、前記制御回路の電子部品と共に温度検知手
段を搭載した基板を備え、前記基板をファンモータの上
部に基板ケースを介して設置し、温度検知手段の取付部
とファンモータとの間に位置する基板ケースの一部を切
り欠いている構成である。この構成によれば、確実にフ
ァンモータ上部の温度を温度検知手段で検知でき、この
検知温度に応じて前記ファンモータへの通電量を可変し
ているので、ファンモータへの通電を遮断することなく
温度過昇防止が行え、結果電気掃除機の使用性向上の効
果がある。According to a fourth aspect of the present invention, there is provided a fan motor having an exhaust port for generating a suction force, temperature detecting means for detecting the temperature in the cleaner body, and detecting the temperature by the temperature detecting means. A control circuit that varies the amount of current supplied to the fan motor in accordance with the electronic component of the control circuit, and a substrate on which a temperature detecting unit is mounted together with electronic components of the control circuit. This is a configuration in which a part of the board case located between the mounting portion of the detection means and the fan motor is cut out. According to this configuration, the temperature of the upper portion of the fan motor can be reliably detected by the temperature detecting means, and the amount of power to the fan motor is varied according to the detected temperature. This can prevent the temperature from rising excessively, and thus has the effect of improving the usability of the vacuum cleaner.
【００１３】本発明の請求項５記載の発明は、請求項１
〜４のいずれか１項に記載の発明に加え、ファンモータ
の後部に冷却孔を設け、前記冷却孔からの冷却風に影響
されない位置に温度検知手段を設けているので、ファン
モータ内を流れる風の影響を受けずに精度良く温度を検
知することができる。The invention according to claim 5 of the present invention is the invention according to claim 1.
In addition to the invention described in any one of (4) to (4), a cooling hole is provided at a rear portion of the fan motor, and a temperature detection unit is provided at a position not affected by cooling air from the cooling hole. The temperature can be accurately detected without being affected by the wind.
【００１４】本発明の請求項６記載の発明は、排気口を
有し吸込力を発生するファンモータと、前記ファンモー
タの上部に配され掃除機本体内の温度を検知する第１の
温度検知手段と、前記ファンモータの下部に配され温度
を検知する第２の温度検知手段と、前記第１および第２
の温度検知手段による検知温度に応じて前記ファンモー
タへの通電量を可変する制御回路を備えているので、フ
ァンモータの通電時と遮断時とでの温度の違いが検知で
きるため、精度良くファンモータの通電、遮断を設定す
ることができる。According to a sixth aspect of the present invention, there is provided a fan motor having an exhaust port for generating a suction force, and a first temperature detecting device disposed above the fan motor for detecting a temperature inside the cleaner body. Means, a second temperature detecting means disposed below the fan motor for detecting temperature, and the first and second temperature detecting means.
A control circuit that varies the amount of current supplied to the fan motor in accordance with the temperature detected by the temperature detecting means, so that the temperature difference between when the fan motor is energized and when the fan motor is shut off can be detected. The energization and cutoff of the motor can be set.
【００１５】本発明の請求項７記載の発明は、排気口を
有し吸込力を発生するファンモータと、前記ファンモー
タの上部に配され掃除機本体内の温度を検知する第１の
温度検知手段と、前記ファンモータの前部に配され温度
を検知する第３の温度検知手段と、前記第１および第３
の温度検知手段による検知温度に応じて前記ファンモー
タへの通電量を可変する制御回路を備えているので、吸
気口の密閉などによる急激なファンモータの温度上昇等
に対しても精度良く温度を検知することができる。According to a seventh aspect of the present invention, there is provided a fan motor having an exhaust port for generating a suction force, and a first temperature detecting device disposed above the fan motor and detecting a temperature inside the cleaner body. Means, a third temperature detecting means disposed at a front portion of the fan motor for detecting a temperature, and the first and third temperature detecting means.
A control circuit that varies the amount of current supplied to the fan motor in accordance with the temperature detected by the temperature detecting means, so that the temperature can be accurately determined even if the temperature of the fan motor suddenly rises due to the sealing of the intake port. Can be detected.
【００１６】本発明の請求項８記載の発明は、請求項１
〜７のいずれか１項に記載の発明に加え、ファンモータ
の風量を検出する風量検出手段を備え、制御回路で前記
風量検出手段と温度検知手段の検知温度に応じて前記フ
ァンモータへの通電量を可変するようにしているので、
ファンモータへ流れる風の量に応じてファンモータの通
電量を可変でき使用性の向上が図れる。The invention according to claim 8 of the present invention is the invention according to claim 1.
In addition to the invention described in any one of the first to seventh aspects, the air conditioner further comprises an air flow detecting means for detecting an air flow of the fan motor, and a control circuit supplies power to the fan motor in accordance with the detected temperatures of the air flow detecting means and the temperature detecting means. Since the amount is variable,
The amount of current supplied to the fan motor can be varied according to the amount of wind flowing to the fan motor, thereby improving usability.
【００１７】本発明の請求項９記載の発明は、請求項１
〜７のいずれか１項に記載の発明に加え、温度検知手段
で検知される検知温度の時間的変化量を演算する変化量
演算手段を設け、制御回路で前記温度検知手段による検
知温度と変化量演算手段による演算結果に応じてファン
モータへの通電量を可変するようにしているので、温度
の変化を予想でき、より精度良くファンモータの通電量
を制御できる。The ninth aspect of the present invention is the first aspect of the present invention.
In addition to the invention described in any one of the above-described embodiments, a change amount calculating means for calculating a temporal change amount of the detected temperature detected by the temperature detecting means is provided, and a control circuit detects a change in the detected temperature by the temperature detecting means. Since the amount of power to the fan motor is varied according to the calculation result by the amount calculating means, a change in temperature can be predicted, and the amount of power to the fan motor can be controlled with higher accuracy.
【００１８】[0018]
（実施例１）以下、本発明の第１の実施例を、図１〜図
４を参照しながら説明する。Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
【００１９】図１の電気掃除機において、１は掃除機本
体で、前方に吸気孔１ｂを設けた集塵室とその後方にフ
ァンモータ室を設け、ファンモータ室に吸込力を発生す
るファンモータ２を配していた。このファンモータ２の
吸込力により、集塵室内に塵埃を吸い込み、集塵するよ
うにしていた。In the electric vacuum cleaner shown in FIG. 1, reference numeral 1 denotes a main body of the vacuum cleaner, which is provided with a dust collecting chamber provided with an intake port 1b at the front and a fan motor chamber at the rear thereof, and a fan motor for generating a suction force in the fan motor chamber. I had two. By the suction force of the fan motor 2, dust is sucked into the dust collection chamber and collected.
【００２０】ファンモータ２は、ファン２ａとモータ２
ｂ及びモータブラケット２ｃで構成されており、２ｄは
ファン後部、２ｇは排気口である。３は前記掃除機本体
１内の温度を検知するサーミスタ等からなる温度検知手
段（以降サーミスタという）で、前記ファンモータ２の
上方部でかつファンモータ２の排気口２ｇからの排気風
の影響を受けない場所に配している。具体的には、排気
口２ｇからの排気のほとんどは後方に流れるので、この
排気口２ｇより前方側にサーミスタ３を配している。The fan motor 2 comprises a fan 2a and a motor 2
b and a motor bracket 2c, 2d is a rear part of the fan, and 2g is an exhaust port. Reference numeral 3 denotes a temperature detecting means (hereinafter, referred to as a thermistor) including a thermistor for detecting the temperature inside the cleaner body 1. The temperature detecting means 3 detects the influence of the exhaust air from the upper part of the fan motor 2 and the exhaust port 2 g of the fan motor 2. We arrange in place not to receive. More specifically, since most of the exhaust gas from the exhaust port 2g flows backward, the thermistor 3 is disposed forward of the exhaust port 2g.
【００２１】４はサーミスタ３の検知温度に応じて前記
ファンモータ２への通電量を可変する制御回路で、電子
部品を配した基板４ａから構成され、サーミスタ３とは
リード線３ａを介して接続されている。また、制御回路
４はファンモータ室とは隔離された上部の部屋に収容さ
れている。Reference numeral 4 denotes a control circuit for varying the amount of current supplied to the fan motor 2 in accordance with the temperature detected by the thermistor 3. The control circuit 4 comprises a substrate 4a on which electronic components are arranged. The control circuit 4 is connected to the thermistor 3 via a lead wire 3a. Have been. Further, the control circuit 4 is housed in an upper room separated from the fan motor room.
【００２２】また、図３に示すように、制御回路４の電
子部品と共にサーミスタ３を搭載した基板４ａを、ファ
ンモータ２の上部に配し、かつ前記サーミスタ３を前記
基板４ａのファンモータ２側の面に配している。As shown in FIG. 3, a board 4a on which the thermistor 3 is mounted together with the electronic components of the control circuit 4 is disposed above the fan motor 2, and the thermistor 3 is connected to the fan motor 2 side of the board 4a. On the surface.
【００２３】また、図４に示すように、制御回路４の電
子部品と共にサーミスタ３を搭載した基板４ｂを、ファ
ンモータ２の上部に配し、前記サーミスタ３を前記基板
４ｂのファンモータ２と反対側の面に配し、かつサーミ
スタ３とファンモータ２との間に位置する基板４ｂの一
部に切り欠き部４ｃを設けている。また、制御回路４の
電子部品とサーミスタ３との全て電子部品を基板の上面
側に配している。As shown in FIG. 4, a board 4b on which the thermistor 3 is mounted together with the electronic components of the control circuit 4 is disposed above the fan motor 2, and the thermistor 3 is opposed to the fan motor 2 on the board 4b. A notch 4c is provided in a part of the substrate 4b disposed on the side surface and located between the thermistor 3 and the fan motor 2. Further, all the electronic components of the control circuit 4 and the thermistor 3 are arranged on the upper surface side of the substrate.
【００２４】また、図２において、（ア）はファンモー
タ２の温度上昇波形、（イ）はファンモータ２の排気口
２ｇ付近の温度上昇波形、（ウ）はファンモータ２の左
右にサーミスタ３を配した場合のサーミスタ３の検知す
る温度上昇波形、（エ）はファンモータ２の下方部にサ
ーミスタ３を配した場合のサーミスタ３の検知する温度
上昇波形、（オ）はファンモータ上方部でかつファンモ
ータ２の排気口２ｇからの排気風の影響を受けない場所
に配したサーミスタ３が検知する温度上昇波形（図１、
３、４のサーミスタ３の位置）である。In FIG. 2, (A) shows a temperature rise waveform of the fan motor 2, (A) shows a temperature rise waveform near the exhaust port 2 g of the fan motor 2, and (C) shows a thermistor 3 on the left and right sides of the fan motor 2. , The temperature rise waveform detected by the thermistor 3 when the thermistor 3 is disposed, (d) is the temperature rise waveform detected by the thermistor 3 when the thermistor 3 is disposed below the fan motor 2, and (o) is the upper part of the fan motor. In addition, a temperature rise waveform detected by a thermistor 3 arranged in a place not affected by the exhaust air from the exhaust port 2g of the fan motor 2 (FIG. 1,
3 and 4).
【００２５】上記構成による作用は以下の通りである。
すなわち、ファンモータ２に通電されると、ファンモー
タ２の温度が上昇する。図１矢印に示すようにファン２
ａ、モータ２ｂを通過した熱風は、ファンモータ２の排
気口２ｇ、本体の排気通路１ａを通って本体１外へ排出
される。この時、本体１は熱風である排気風（矢印）と
ファンモータ２の自己発熱とで暖められる。これら暖め
られた空気は上方へ向かうため、ファンモータ２の温度
上昇と比例してファンモータ２の上部も温度上昇する。
従ってファンモータ２の上方部の温度を検知すれば、フ
ァンモータ２の温度を間接的に検知したことになる。フ
ァンモータ２の上方部に設置されたサーミスタ３はこの
ファンモータ２上方部の空気の温度を検知する。The operation of the above configuration is as follows.
That is, when the fan motor 2 is energized, the temperature of the fan motor 2 rises. Fan 2 as shown by the arrow in FIG.
a, the hot air that has passed through the motor 2b is discharged out of the main body 1 through an exhaust port 2g of the fan motor 2 and an exhaust passage 1a of the main body. At this time, the main body 1 is heated by the exhaust wind (arrow), which is hot air, and the self-heating of the fan motor 2. Since the warmed air goes upward, the temperature of the upper part of the fan motor 2 also rises in proportion to the temperature rise of the fan motor 2.
Therefore, if the temperature of the upper part of the fan motor 2 is detected, it means that the temperature of the fan motor 2 is indirectly detected. The thermistor 3 installed above the fan motor 2 detects the temperature of the air above the fan motor 2.
【００２６】ところがこの時のファンモータ２の温度上
昇が図２の（ア）とすると、サーミスタ３の温度上昇は
排気口２ｇの近傍では熱風である排気風の影響を受け温
度が異常に高くなり図２（イ）のようになる。また、フ
ァンモータ２の左右では暖められた空気が上方へ向かう
ため、温度の追随が遅く、図２の（ウ）のようになる。
ファンモータ２の下方部では図２の（エ）のようにな
る。そこで、サーミスタ３をファンモータ２の上方部で
かつ排気口２ｇからの排気風の影響を受けない場所に配
し、ファンモータ２からの輻射熱を直接サーミスタ３が
検知できる構成にすることで図２の（オ）のようにファ
ンモータ２の温度上昇とほぼ同等の追随性を保ちながら
サーミスタ３が温度を検知することが可能となる。However, assuming that the temperature rise of the fan motor 2 at this time is as shown in FIG. 2A, the temperature rise of the thermistor 3 becomes abnormally high in the vicinity of the exhaust port 2g under the influence of the exhaust air which is hot air. The result is as shown in FIG. Further, since the warmed air goes upward on the left and right sides of the fan motor 2, the temperature follows slowly, as shown in FIG.
The lower part of the fan motor 2 is as shown in FIG. Therefore, the thermistor 3 is disposed above the fan motor 2 and in a place where the thermistor 3 is not affected by the exhaust air from the exhaust port 2g so that the thermistor 3 can directly detect the radiant heat from the fan motor 2 as shown in FIG. As shown in (e), the thermistor 3 can detect the temperature while keeping the followability almost equal to the temperature rise of the fan motor 2.
【００２７】そしてサーミスタ３が検知した値に応じて
制御回路４はファンモータ２への通電量を可変する。サ
ーミスタ３の検知温度が高くなると、ファンモータ２へ
の通電量を少なくし、ファンモータ２の温度上昇を抑
え、反対にサーミスタ３の検知温度が低いとファンモー
タ２の通電量を多くし、より掃除機の吹込力を大きくす
るように制御する。結果、ファンモータ２の温度に応じ
てファンモータ２への通電量を可変することになり、使
用性の優れた掃除機を提供できる。The control circuit 4 varies the amount of power to the fan motor 2 according to the value detected by the thermistor 3. When the temperature detected by the thermistor 3 increases, the amount of power to the fan motor 2 is reduced, and the temperature rise of the fan motor 2 is suppressed. Conversely, when the temperature detected by the thermistor 3 is low, the amount of power to the fan motor 2 is increased. Control is performed to increase the blowing power of the vacuum cleaner. As a result, the amount of electricity supplied to the fan motor 2 is varied according to the temperature of the fan motor 2, and a cleaner with excellent usability can be provided.
【００２８】また、図３に示すように、制御回路４の電
子部品と共にサーミスタ３を搭載した基板４ａをファン
モータ２の上部に配し、かつ前記サーミスタ３を前記基
板４ａのファンモータ２側の面に配することにより、サ
ーミスタ３が精度良くファンモータ２の温度を検知で
き、かつ基板４ａの組立性、作業性を向上できる。As shown in FIG. 3, a board 4a on which the thermistor 3 is mounted together with the electronic components of the control circuit 4 is disposed above the fan motor 2, and the thermistor 3 is mounted on the board 4a on the side of the fan motor 2. By arranging them on the surface, the thermistor 3 can accurately detect the temperature of the fan motor 2 and can improve the assemblability and workability of the substrate 4a.
【００２９】更に、図４に示すように、制御回路４の電
子部品と共にサーミスタ３を搭載した基板４ｂをファン
モータ２の上部に配し、前記サーミスタ３を前記基板４
ｂのファンモータ２と反対側の面に配し、かつサーミス
タ３とファンモータ２との間に位置する基板４ｂの一部
に切り欠き部４ｃを設けることにより、全電子部品を基
板４ｂの上面側に配することができ、より組立性、作業
性が向上し、結果安価な電気掃除機を提供できる。Further, as shown in FIG. 4, a board 4b on which the thermistor 3 is mounted together with the electronic components of the control circuit 4 is arranged above the fan motor 2, and the thermistor 3 is mounted on the board 4b.
b on the surface opposite to the fan motor 2 and by providing a notch 4c in a part of the substrate 4b located between the thermistor 3 and the fan motor 2, all the electronic components can be placed on the upper surface of the substrate 4b. The vacuum cleaner can be disposed on the side, and the assemblability and workability are further improved, so that an inexpensive vacuum cleaner can be provided.
【００３０】（実施例２）以下、本発明の第２の実施例
を、図５、６を参照しながら説明する。なお上記第１の
実施例と同一構成部品については同一符号を付して、そ
の説明を省略する。(Embodiment 2) Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
【００３１】図５の電気掃除機において、５は制御回路
４をファンモータ２の上部に設置し、かつファンモータ
２とサーミスタ３との間、モータブラケット２ｃとサー
ミスタ３の間５ａ、あるいはファン後部２ｄとサーミス
タ３の間５ｂを切り欠いた基板ケースである。In the vacuum cleaner of FIG. 5, reference numeral 5 designates a control circuit 4 provided above the fan motor 2 and between the fan motor 2 and the thermistor 3, 5a between the motor bracket 2c and the thermistor 3, or at the rear of the fan. This is a board case in which 5b is cut out between 2d and the thermistor 3.
【００３２】また、図６において、（ア）はファンモー
タ２の温度上昇波形、（イ）は切り欠きのない基板ケー
ス５がある場合のサーミスタ３が検知する温度上昇波
形、（ウ）は基板ケース５を切り欠いた場合のサーミス
タ３の検知する温度上昇波形である。In FIG. 6, (a) shows a temperature rise waveform of the fan motor 2, (a) shows a temperature rise waveform detected by the thermistor 3 when there is a substrate case 5 having no notch, and (c) shows a substrate temperature rise waveform. 8 is a temperature rise waveform detected by the thermistor 3 when the case 5 is cut off.
【００３３】上記構成による作用は以下の通りである。
すなわち、制御回路４をファンモータ２上部に配する
時、図５に示すように基板ケース５を介して配すると制
御回路４の保持、組立性、作業性が向上する。The operation of the above configuration is as follows.
That is, when the control circuit 4 is disposed above the fan motor 2, if the control circuit 4 is disposed via the board case 5 as shown in FIG. 5, the holding, assembling, and workability of the control circuit 4 are improved.
【００３４】ところが、ファンモータ２の温度上昇が図
６の（ア）とすると、サーミスタ３の温度上昇はファン
モータ２とサーミスタ３の間に、基板ケース５に切り欠
きがない場合は、基板ケース５で一旦熱の伝達が遮断さ
れるため、温度の追随が遅く図６の（イ）のようにな
る。そこで、基板ケース５にモータブラケット２ｃとサ
ーミスタ２の間５ａ、あるいはファン後部２ｄとサーミ
スタ３の間５ｂの間を切り欠き、ファンモータ２からの
輻射熱を直接サーミスタ３が検知できる構成にした場合
は図６の（ウ）のようにファンモータ２の温度上昇とほ
ぼ同等の追随性を保ちながらサーミスタ３が温度を検知
することが可能となる。However, assuming that the temperature rise of the fan motor 2 is as shown in FIG. 6A, the temperature rise of the thermistor 3 can be reduced if there is no notch in the board case 5 between the fan motor 2 and the thermistor 3. Since the transfer of heat is temporarily interrupted at 5, the temperature follows slowly, as shown in FIG. Therefore, when the substrate case 5 is cut out between the motor bracket 2c and the thermistor 2 or 5b between the fan rear portion 2d and the thermistor 3 so that the thermistor 3 can directly detect the radiant heat from the fan motor 2, As shown in FIG. 6 (c), the thermistor 3 can detect the temperature while maintaining the followability substantially equal to the temperature rise of the fan motor 2.
【００３５】従って、制御回路４の保持、組立性、及び
作業性を向上させつつ精度良くファンモータ２の検知温
度に応じてファンモータ２への通電量を可変することに
なり、使用性の優れた掃除機を提供できる。Therefore, the amount of power supplied to the fan motor 2 can be varied in accordance with the temperature detected by the fan motor 2 with high accuracy while maintaining, assembling, and workability of the control circuit 4 are improved. Vacuum cleaner can be provided.
【００３６】（実施例３）次に、本発明の第３の実施例
を、図７、８、９を用いて説明する。なお上記第１、２
の実施例と同一構成部品については同一符号を付して、
その説明を省略する。(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIGS. Note that the first and second
The same reference numerals are given to the same components as those of the embodiment,
The description is omitted.
【００３７】図７において、２ｅはファン後部２ｄに設
けた冷却孔である。図８、９において、２１はファンモ
ータ２からの制御回路の放熱部品２１ａを冷却する冷却
風の当たらない場所にサーミスタ３を配置した制御回路
である。In FIG. 7, reference numeral 2e denotes a cooling hole provided in the rear portion 2d of the fan. 8 and 9, reference numeral 21 denotes a control circuit in which the thermistor 3 is arranged in a place where cooling air for cooling the heat radiating component 21a of the control circuit from the fan motor 2 is not exposed.
【００３８】上記構成による作用は以下の通りである。
すなわち、ファンモータ２が回転すると、図８に示すよ
うにファン２ａ内を通った冷風は実線矢印で示すモータ
２ｂ内部を冷却する風と、図７に示したファン後部２ｄ
に設けた冷却孔２ｅを介してモータ２ｂ内部を通らずに
直接放熱部品２１ａを冷却する破線矢印で示す冷却風と
が流れる。この時、モータ２ｂ内部を通った図８に示す
実線矢印の風はモータ２ｂの熱を吸収し、高温となり排
気通路１ａから排気される。又、放熱部品２１ａを冷却
する冷却風は図８の破線矢印に示すようにモータ２ｂ内
を通らず冷風の状態で放熱部品２１ａを直接冷却する。The operation of the above configuration is as follows.
That is, when the fan motor 2 rotates, as shown in FIG. 8, the cool air passing through the inside of the fan 2a cools the inside of the motor 2b indicated by the solid arrow and the fan rear 2d shown in FIG.
And cooling air indicated by a dashed arrow that directly cools the heat radiating component 21a without passing through the inside of the motor 2b through the cooling hole 2e provided in the motor 2b. At this time, the wind of the solid arrow shown in FIG. 8 passing through the inside of the motor 2b absorbs the heat of the motor 2b, becomes high temperature, and is exhausted from the exhaust passage 1a. Further, the cooling air for cooling the heat radiating component 21a directly cools the heat radiating component 21a in a state of the cool air without passing through the inside of the motor 2b as shown by a broken arrow in FIG.
【００３９】ところがこの冷却風の風量はファン２ａの
回転数に、又冷却風の温度は雰囲気温度に依存するた
め、この風の影響を受ける場所にサーミスタ３を配置す
ると、サーミスタ３が検知する温度の精度が悪くなる。
そこで図９に示すようにサーミスタ３を冷却風の当たら
ない場所に配置することで確実に温度検知することがで
きる。However, since the amount of the cooling air depends on the rotation speed of the fan 2a and the temperature of the cooling air depends on the ambient temperature, if the thermistor 3 is disposed in a place affected by the air, the temperature detected by the thermistor 3 The accuracy of is worse.
Therefore, as shown in FIG. 9, by arranging the thermistor 3 in a place where the cooling air does not blow, the temperature can be reliably detected.
【００４０】以上のように本実施例によれば、ファンモ
ータ２からの冷却風を直接サーミスタ３が受けないよう
にすることにより、より精度良くサーミスタ３の検知温
度に応じてファンモータ２の通電制御が可能となる。As described above, according to the present embodiment, the cooling air from the fan motor 2 is not directly received by the thermistor 3, so that the energization of the fan motor 2 can be more accurately performed according to the temperature detected by the thermistor 3. Control becomes possible.
【００４１】（実施例４）次に、本発明の第４の実施例
を、図１０、図１１を用いて説明する。なお上記第１〜
３の実施例と同一構成部品については同一符号を付し
て、その説明を省略する。(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to FIGS. Note that the above first to first
The same components as those of the third embodiment are denoted by the same reference numerals, and description thereof is omitted.
【００４２】図１０において、３１はファンモータ２の
上方部に配置した掃除機本体内の温度を検知する第一サ
ーミスタ、３２はファンモータ２の下部に設けた第二サ
ーミスタ、３３はこれら第一、第二サーミスタ３１、３
２の検知温度に応じて前記ファンモータ２への通電量を
可変する第二駆動回路である。In FIG. 10, reference numeral 31 denotes a first thermistor disposed above the fan motor 2 for detecting the temperature inside the cleaner main body, 32 denotes a second thermistor provided below the fan motor 2, and 33 denotes these first thermistors. , The second thermistor 31, 3
2 is a second drive circuit that varies the amount of current supplied to the fan motor 2 according to the detected temperature of the second drive circuit.
【００４３】また、図１１において、（ア）はファンモ
ータ２の温度上昇波形、（イ）は第一サーミスタ３１が
検知する温度上昇波形、（ウ）は第二サーミスタ３２が
検知する温度上昇波形である。In FIG. 11, (A) shows a temperature rise waveform of the fan motor 2, (A) shows a temperature rise waveform detected by the first thermistor 31, and (C) shows a temperature rise waveform detected by the second thermistor 32. It is.
【００４４】上記構成による作用は以下の通りである。
すなわち、ファンモータ２の温度波形が図１１の（ア）
とすると、ファンモータ２上方部に配置した第一サーミ
スタ３１の温度波形は図１１の（イ）のように温度上昇
時の追随は良いが温度下降時のファンモータ２の温度下
降に対して遅れが生じる。従って過度にファンモータ２
の温度が上昇し、ファンモータ２を停止させた場合、本
来ならば使用可能な温度まで掃除機本体１の温度は下が
っているにもかかわらず、第一サーミスタ３１はファン
モータ２の上方の余熱で検知温度が下がらず、まだ温度
が高いと判断してしまう。そこで停止からの復帰にはフ
ァンモータ２下部に設けた第二サーミスタ３２を用い
る。この第二サーミスタ３２の温度波形は図１１の
（ウ）に示すように温度上昇時の追随は悪いが温度下降
時のファンモータ２の温度下降に対する追随が良い。従
って、第一サーミスタ３１と第二サーミスタ３２が検知
した内容を第二駆動回路３３が受け取り、通常動作時は
第一サーミスタ３１の検知温度でファンモータ２を制御
し、ホースにゴミが詰まったり、本体１の吸気口１ｂが
塞がったりして、ファンモータ２の温度が異常に上昇
し、ファンモータ２を強制的に停止させた場合には、第
二サーミスタ３２で停止後のファンモータ２下部の温度
を検出し、ファンモータ２の動作復帰を判断する。この
ように２つのサーミスタ３１、３２で温度制御すること
で常に正確な温度でファンモータ２を駆動制御できる。The operation of the above configuration is as follows.
That is, the temperature waveform of the fan motor 2 changes as shown in FIG.
In this case, the temperature waveform of the first thermistor 31 disposed above the fan motor 2 follows the rise of the temperature well as shown in FIG. 11A but is delayed with respect to the fall of the temperature of the fan motor 2 when the temperature falls. Occurs. Therefore, the fan motor 2
When the temperature of the cleaner rises and the fan motor 2 is stopped, the first thermistor 31 keeps the residual heat above the fan motor 2 even though the temperature of the cleaner body 1 has dropped to a temperature at which the fan motor 2 could be used. , The detected temperature does not decrease and it is determined that the temperature is still high. Therefore, the second thermistor 32 provided below the fan motor 2 is used for returning from the stop. The temperature waveform of the second thermistor 32 does not follow well when the temperature rises as shown in FIG. 11C, but it follows well when the temperature of the fan motor 2 falls when the temperature falls. Therefore, the contents detected by the first thermistor 31 and the second thermistor 32 are received by the second drive circuit 33, and during normal operation, the fan motor 2 is controlled by the detected temperature of the first thermistor 31, and the hose is clogged with dust. When the intake port 1b of the main body 1 is closed or the temperature of the fan motor 2 rises abnormally and the fan motor 2 is forcibly stopped, the lower part of the fan motor 2 after the stop is stopped by the second thermistor 32. The temperature is detected, and the return of the operation of the fan motor 2 is determined. By controlling the temperature with the two thermistors 31 and 32 in this manner, the drive control of the fan motor 2 can always be performed at an accurate temperature.
【００４５】（実施例５）次に、本発明の第５の実施例
を、図１２、図１３を用いて説明する。なお上記第１〜
４の実施例と同一構成部品については同一符号を付し
て、その説明を省略する。(Embodiment 5) Next, a fifth embodiment of the present invention will be described with reference to FIGS. Note that the above first to first
The same components as those of the fourth embodiment are denoted by the same reference numerals, and description thereof will be omitted.
【００４６】図１２において、４１はファンモータ２の
前部に設けた第三サーミスタ、４２はこれら第一、第三
サーミスタ３１、４１の検知内容に応じて前記ファンモ
ータ２への通電量を可変する第三駆動回路である。In FIG. 12, reference numeral 41 denotes a third thermistor provided at the front of the fan motor 2, and reference numeral 42 denotes a variable amount of electricity to the fan motor 2 according to the detection contents of the first and third thermistors 31, 41. This is the third drive circuit.
【００４７】また、図１３において、（ア）はファンモ
ータ２の温度波形、（イ）は第一サーミスタ３１が検知
する温度波形、（ウ）は第三サーミスタ４１が検知する
温度波形である。In FIG. 13, (a) shows the temperature waveform of the fan motor 2, (a) shows the temperature waveform detected by the first thermistor 31, and (c) shows the temperature waveform detected by the third thermistor 41.
【００４８】上記構成による作用は以下の通りである。
すなわち、掃除機本体１の吸気孔１ｂを塞ぐと、ファン
モータ２へは風が流れなくなる。風が流れないとファン
モータ２は負荷が軽くなり高速回転で回転する。このた
め、ファン２ａ部は高速で空気を切る事によりファン２
ａ近傍の空気との摩擦で急激な温度上昇をもたらす。と
ころが空気が流れないため、ファンモータ２の上方部に
配置した第一サーミスタ３１へは熱の伝達が悪く、ファ
ンモータ２のファン２ａ部の温度上昇波形を図１３の
（ア）とすると、ファンモータ２上方部に配置した第一
サーミスタ３１の温度波形は図１３の（イ）のように温
度上昇時の追随が悪いものとなってしまう。ところが通
常使用時のように風がファンモータ２内を流れている時
はファン２ａで温度が上昇した空気がモータ２ｂ内を通
過して排気されるため、ファンモータ２上方部のほうが
ファン前部２ｆより温度が上昇する。従って、第一サー
ミスタ３１と第三サーミスタ４１の温度を共に検知し、
常に高い方の温度でファンモータ２を制御することで常
に正確な温度でファンモータ２を駆動制御できる。The operation of the above configuration is as follows.
That is, when the air inlet 1b of the cleaner body 1 is closed, the wind does not flow to the fan motor 2. If the wind does not flow, the load on the fan motor 2 is reduced, and the fan motor 2 rotates at high speed. For this reason, the fan 2a cuts the air at a high speed to
A sharp rise in temperature is caused by friction with air near "a". However, since the air does not flow, the heat is not well transmitted to the first thermistor 31 disposed above the fan motor 2, and if the temperature rise waveform of the fan 2a of the fan motor 2 is shown in FIG. The temperature waveform of the first thermistor 31 disposed above the motor 2 does not follow well when the temperature rises, as shown in FIG. However, when the wind is flowing through the fan motor 2 as in normal use, the air whose temperature has risen by the fan 2a passes through the motor 2b and is exhausted. The temperature rises from 2f. Therefore, both the temperatures of the first thermistor 31 and the third thermistor 41 are detected,
By always controlling the fan motor 2 at the higher temperature, the drive of the fan motor 2 can always be controlled at an accurate temperature.
【００４９】（実施例６）次に、本発明の第６の実施例
を、図１４、図１５を用いて説明する。なお上記第１の
実施例と同一構成部品については同一符号を付して、そ
の説明を省略する。(Embodiment 6) Next, a sixth embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
【００５０】図１４において、５１はファンモータ２の
風量を検出する風量検出手段、５２はサーミスタ５の検
知温度と風量検出手段５１が検出した風量とからファン
モータ２への通電を制御する制御回路である。In FIG. 14, reference numeral 51 denotes an air flow detecting means for detecting the air flow of the fan motor 2; 52, a control circuit for controlling energization to the fan motor 2 based on the temperature detected by the thermistor 5 and the air flow detected by the air flow detecting means 51; It is.
【００５１】また、図１５は風量と検知温度との相関図
である。上記構成による作用は以下の通りである。すな
わち、ファンモータ２が回転すると、風が流れファンモ
ータ２の発熱により生じた高温の空気を本体１の排気通
路１ａを介して外へ排気し、ファンモータ２の温度上昇
を抑える。また、同一の発熱量に対して風の量が異なる
と放熱量も異なる。そこでファンモータ２の上方部に設
けたサーミスタ３が検知する温度とファンモータ２の風
量を風量検出手段５１で検出し、これら温度と風量を制
御回路５２へ入力し、ファンモータ２の通電量を可変す
る。例えばある温度に対しては図１５に示すように風量
が多い場合は通電量を多くし、反対に風量が少ない場合
は通電量を少なくする。FIG. 15 is a correlation diagram between the air volume and the detected temperature. The operation of the above configuration is as follows. That is, when the fan motor 2 rotates, the wind flows and the high-temperature air generated by the heat generated by the fan motor 2 is exhausted to the outside through the exhaust passage 1a of the main body 1, thereby suppressing the temperature rise of the fan motor 2. Also, if the amount of wind differs for the same amount of heat generation, the amount of heat radiation also differs. Therefore, the temperature detected by the thermistor 3 provided above the fan motor 2 and the air volume of the fan motor 2 are detected by the air volume detection means 51, and these temperatures and air volume are input to the control circuit 52, and the amount of power supplied to the fan motor 2 is determined. Variable. For a certain temperature, for example, as shown in FIG. 15, when the air volume is large, the power amount is increased, and when the air volume is small, the power amount is reduced.
【００５２】以上のように本実施例によれば、ファンモ
ータ２の温度と風量からファンモータ２の通電量を定め
ており、より確実にファンモータ２を制御できる。As described above, according to the present embodiment, the amount of electricity to be supplied to the fan motor 2 is determined based on the temperature and the air flow of the fan motor 2, so that the fan motor 2 can be controlled more reliably.
【００５３】（実施例７）次に、本発明の第７の実施例
を、図１６を用いて説明する。なお上記第１〜６の実施
例と同一構成部品については同一符号を付して、その説
明を省略する。(Embodiment 7) Next, a seventh embodiment of the present invention will be described with reference to FIG. The same components as those in the first to sixth embodiments are denoted by the same reference numerals, and description thereof will be omitted.
【００５４】図１６において、６１はサーミスタ３の検
知内容の時間的変化量を演算する変化量演算手段、６２
はサーミスタ３の検知内容と変化量演算手段６１の演算
結果に応じてファンモータ２への通電量を可変する駆動
手段である。In FIG. 16, reference numeral 61 denotes a change amount calculating means for calculating a temporal change amount of the detection content of the thermistor 3;
Is a driving means for varying the amount of power to the fan motor 2 in accordance with the detection content of the thermistor 3 and the calculation result of the change amount calculation means 61.
【００５５】上記構成による作用は以下の通りである。
すなわち、吸気孔１ｂを塞いだり、ホースに物が詰まっ
たりしてファンモータ２に風が流れなくなりファンモー
タ２の温度が急激に上昇した場合、ある一定の温度で通
電量を可変（例えば停止）しても、その余熱で温度は上
昇する。このため、余熱による温度のオーバーシュート
分を見越してファンモータ２の通電量を設定する必要が
あった。そこでこの温度上昇（下降）値の時間的変化量
を変化量演算手段６１で演算し、この演算結果とサーミ
スタ３が検知した温度を駆動手段６２へ入力し、これら
からファンモータ２の通電量を可変しているので温度の
変化を予想でき、より精度良くファンモータ２の通電量
を制御できる。The operation of the above configuration is as follows.
In other words, when the air flow is blocked by blocking the intake hole 1b or the hose is clogged, and the air does not flow through the fan motor 2 and the temperature of the fan motor 2 rises sharply, the amount of electricity is varied (for example, stopped) at a certain temperature. Even so, the temperature rises due to the residual heat. For this reason, it is necessary to set the energization amount of the fan motor 2 in anticipation of the temperature overshoot due to the residual heat. Therefore, the temporal change amount of the temperature rise (fall) value is calculated by the change amount calculating means 61, and the calculation result and the temperature detected by the thermistor 3 are input to the driving means 62, and the energizing amount of the fan motor 2 is calculated therefrom. Since it is variable, a change in temperature can be predicted, and the amount of current supplied to the fan motor 2 can be controlled more accurately.
【００５６】[0056]
【発明の効果】本発明の請求項１記載の発明によれば、
ファンモータの上方部に設けたサーミスタで温度を検知
しておりファンモータの温度を間接的に検知したことに
なるため、ファンモータの温度に応じてファンモータへ
の通電量を可変することになり、使用性の優れた掃除機
を提供できる。According to the first aspect of the present invention,
Since the temperature is detected by the thermistor provided above the fan motor and the temperature of the fan motor is indirectly detected, the amount of power supplied to the fan motor varies according to the temperature of the fan motor. It can provide a vacuum cleaner having excellent usability.
【００５７】本発明の請求項２記載の発明によれば、制
御回路の電子部品と共にサーミスタを搭載した基板をフ
ァンモータの上部に配し、かつサーミスタを前記基板の
ファンモータ側の面に配しているのでサーミスタの検知
精度を保ちつつ制御回路の組立性、作業性が向上した電
気掃除機を提供できる。According to the second aspect of the present invention, the board on which the thermistor is mounted together with the electronic parts of the control circuit is arranged on the upper part of the fan motor, and the thermistor is arranged on the fan motor side surface of the board. Therefore, it is possible to provide a vacuum cleaner having improved controllability and workability of the control circuit while maintaining the detection accuracy of the thermistor.
【００５８】本発明の請求項３記載の発明によれば、制
御回路の電子部品と共にサーミスタを搭載した基板をフ
ァンモータの上部に配し、サーミスタを前記基板のファ
ンモータと反対側の面に配し、かつサーミスタとファン
モータとの間に位置する基板の一部を切り欠いているの
で、全電子部品を基板の上面に配することができ、より
組立性、作業性が向上し、結果安価な電気掃除機を提供
できる。According to the invention of claim 3 of the present invention, the board on which the thermistor is mounted together with the electronic components of the control circuit is arranged above the fan motor, and the thermistor is arranged on the surface of the board opposite to the fan motor. In addition, since a part of the substrate located between the thermistor and the fan motor is cut off, all the electronic components can be arranged on the upper surface of the substrate, so that the assembling workability and workability are further improved, resulting in lower cost. A simple vacuum cleaner.
【００５９】本発明の請求項４記載の発明によれば、制
御回路の電子部品と共にサーミスタを搭載した基板をフ
ァンモータの上部に基板ケースを介して設置し、サーミ
スタの取付部とファンモータとの間に位置する基板ケー
スの一部を切り欠いているので、確実にファンモータ上
部の温度を温度検知手段で検知でき、ファンモータの温
度に応じてファンモータへの通電量を可変することにな
り、使用性の優れた掃除機を提供できる。According to the invention of claim 4 of the present invention, the board on which the thermistor is mounted together with the electronic parts of the control circuit is installed above the fan motor via the board case, and the mounting section of the thermistor and the fan motor are connected. Since a part of the board case located between them is cut off, the temperature at the upper part of the fan motor can be reliably detected by the temperature detection means, and the amount of electricity to the fan motor can be varied according to the temperature of the fan motor. It can provide a vacuum cleaner having excellent usability.
【００６０】本発明の請求項５記載の発明によれば、フ
ァンモータからの冷却風を直接サーミスタが受けないよ
うにすることにより、より精度良くファンモータの通電
制御が可能となる。According to the fifth aspect of the present invention, since the cooling air from the fan motor is not directly received by the thermistor, the energization control of the fan motor can be more accurately performed.
【００６１】本発明の請求項６記載の発明によれば、温
度上昇時はファンモータ上方部に設けた第一サーミスタ
の検知温度でファンモータを制御し、反対に温度下降時
にはファンモータ下部に設けた第二サーミスタの検知温
度で制御することで常に正確な温度でファンモータを駆
動制御できる。According to the invention of claim 6 of the present invention, when the temperature rises, the fan motor is controlled by the detected temperature of the first thermistor provided above the fan motor, and when the temperature falls, it is provided below the fan motor. By controlling the temperature detected by the second thermistor, the fan motor can always be driven and controlled at an accurate temperature.
【００６２】本発明の請求項７記載の発明によれば、フ
ァンモータ上方部に設けた第一サーミスタと前部に設け
た第三サーミスタの温度を共に検知し、常に高い方の温
度でファンモータを制御することで常に正確な温度でフ
ァンモータを駆動制御できる。According to the seventh aspect of the present invention, the temperature of the first thermistor provided at the upper portion of the fan motor and the temperature of the third thermistor provided at the front portion are both detected, and the fan motor is always kept at the higher temperature. , The fan motor can always be driven and controlled at an accurate temperature.
【００６３】本発明の請求項８記載の発明によれば、フ
ァンモータの温度と風量からファンモータの通電量を定
めており、より確実にファンモータを制御できる。According to the invention described in claim 8 of the present invention, the energization amount of the fan motor is determined from the temperature and the air flow of the fan motor, so that the fan motor can be controlled more reliably.
【００６４】本発明の請求項９記載の発明によれば、温
度上昇（下降）値の時間的変化量を演算し、この演算結
果とサーミスタが検知した温度とからファンモータの通
電量を可変しているので温度の変化を予想でき、より精
度良くファンモータの通電量を制御できる。According to the ninth aspect of the present invention, the amount of temporal change in the temperature rise (fall) value is calculated, and the energization amount of the fan motor is varied based on the calculation result and the temperature detected by the thermistor. Therefore, a change in temperature can be predicted, and the amount of power supplied to the fan motor can be controlled more accurately.
【図１】本発明の第１の実施例を示す電気掃除機本体の
縦断面図FIG. 1 is a longitudinal sectional view of a vacuum cleaner main body showing a first embodiment of the present invention.
【図２】同電気掃除機のファンモータ、サーミスタの温
度上昇波形図FIG. 2 is a waveform diagram of a temperature rise of a fan motor and a thermistor of the vacuum cleaner.
【図３】同サーミスタの取付位置を変えた電気掃除機の
本体の縦断面図FIG. 3 is a longitudinal sectional view of the main body of the vacuum cleaner in which the mounting position of the thermistor is changed.
【図４】同サーミスタの取付位置を変えた電気掃除機の
本体の縦断面図FIG. 4 is a longitudinal sectional view of the main body of the vacuum cleaner in which the mounting position of the thermistor is changed.
【図５】本発明の第２の実施例を示す電気掃除機本体の
縦断面図FIG. 5 is a longitudinal sectional view of a vacuum cleaner main body showing a second embodiment of the present invention.
【図６】同電気掃除機のファンモータ、サーミスタの温
度上昇波形図FIG. 6 is a temperature rise waveform diagram of a fan motor and a thermistor of the vacuum cleaner.
【図７】本発明の第３の実施例を示すファンモータの後
方図FIG. 7 is a rear view of a fan motor according to a third embodiment of the present invention.
【図８】同電気掃除機の本体の縦断面図FIG. 8 is a longitudinal sectional view of the main body of the vacuum cleaner.
【図９】同電気掃除機の本体の横断面図FIG. 9 is a cross-sectional view of the main body of the vacuum cleaner.
【図１０】本発明の第４の実施例を示す電気掃除機本体
の縦断面図FIG. 10 is a longitudinal sectional view of a vacuum cleaner main body showing a fourth embodiment of the present invention.
【図１１】同電気掃除機のファンモータ、サーミスタの
温度上昇波形図FIG. 11 is a waveform diagram of a temperature rise of a fan motor and a thermistor of the vacuum cleaner.
【図１２】本発明の第５の実施例を示す電気掃除機本体
の縦断面図FIG. 12 is a longitudinal sectional view of a vacuum cleaner main body showing a fifth embodiment of the present invention.
【図１３】同電気掃除機のファンモータ、サーミスタの
温度上昇波形図FIG. 13 is a temperature rise waveform diagram of a fan motor and a thermistor of the vacuum cleaner.
【図１４】本発明の第６の実施例を示す電気掃除機の回
路ブロック図FIG. 14 is a circuit block diagram of a vacuum cleaner showing a sixth embodiment of the present invention.
【図１５】同電気掃除機の風量と検知温度との相関図FIG. 15 is a correlation diagram between the air volume and the detected temperature of the vacuum cleaner.
【図１６】本発明の第７の実施例を示す電気掃除機の回
路ブロック図FIG. 16 is a circuit block diagram of a vacuum cleaner showing a seventh embodiment of the present invention.
【図１７】従来例を示す電気掃除機本体の縦断面図FIG. 17 is a longitudinal sectional view of a vacuum cleaner main body showing a conventional example.
【図１８】他の従来例を示す電気掃除機本体の横断面図FIG. 18 is a cross-sectional view of a vacuum cleaner main body showing another conventional example.
１ 掃除機本体 ２ ファンモータ ３ サーミスタ（温度検知手段） ４ 制御回路 ５ 基板ケース ２１ 制御回路 ３１ 第一サーミスタ（第１の温度検知手段） ３２ 第二サーミスタ（第２の温度検知手段） ３３ 第二駆動回路 ４１ 第三サーミスタ（第３の温度検知手段） ４２ 第三駆動回路 ５１ 風量検出手段 ５２ 制御回路 ６１ 変化量演算手段 ６２ 第四駆動手段 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Fan motor 3 Thermistor (temperature detecting means) 4 Control circuit 5 Board case 21 Control circuit 31 First thermistor (first temperature detecting means) 32 Second thermistor (second temperature detecting means) 33 Second Driving circuit 41 Third thermistor (third temperature detecting means) 42 Third driving circuit 51 Airflow detecting means 52 Control circuit 61 Change amount calculating means 62 Fourth driving means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 速水 禎高 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Yoshitaka Hayami 1006 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.
Claims (9)
ータと、掃除機本体内の温度を検知する温度検知手段
と、前記温度検知手段の検知温度に応じて前記ファンモ
ータへの通電量を可変する制御回路を備え、前記温度検
知手段を前記ファンモータの上部でかつ前記排気口から
の排気風に影響されない位置に配した電気掃除機。1. A fan motor having an exhaust port for generating a suction force, a temperature detecting means for detecting a temperature in a cleaner body, and an amount of electricity to the fan motor according to a temperature detected by the temperature detecting means. And a control circuit for changing the temperature, and wherein the temperature detecting means is disposed above the fan motor and at a position which is not affected by the exhaust air from the exhaust port.
を搭載した基板を有し、前記基板をファンモータの上部
に配し、かつ前記温度検知手段を前記基板のファンモー
タ側の面に配した請求項１記載の電気掃除機。2. A substrate having temperature detecting means mounted thereon together with electronic components of a control circuit, wherein said substrate is disposed above a fan motor, and said temperature detecting means is disposed on a surface of said substrate on a fan motor side. The vacuum cleaner according to claim 1.
を搭載した基板を有し、前記基板をファンモータの上部
に配し、前記温度検知手段を前記基板のファンモータと
反対側の面に配し、かつ温度検知手段とファンモータと
の間に位置する基板の一部を切り欠いた請求項１記載の
電気掃除機。3. A board having temperature detecting means mounted thereon together with electronic components of a control circuit, said board being arranged above a fan motor, and said temperature detecting means being arranged on a surface of said board opposite to the fan motor. 2. The vacuum cleaner according to claim 1, wherein a part of the substrate located between the temperature detecting means and the fan motor is cut out.
ータと、掃除機本体内の温度を検知する温度検知手段
と、前記温度検知手段の検知温度に応じて前記ファンモ
ータへの通電量を可変する制御回路と、前記制御回路の
電子部品と共に温度検知手段を搭載した基板を備え、前
記基板をファンモータの上部に基板ケースを介して設置
し、前記温度検知手段の取付部とファンモータとの間に
位置する基板ケースの一部を切り欠いた電気掃除機。4. A fan motor having an exhaust port for generating a suction force, temperature detecting means for detecting a temperature inside the cleaner body, and an amount of electricity to the fan motor according to a temperature detected by the temperature detecting means. A control circuit, and a board on which a temperature detecting means is mounted together with electronic components of the control circuit. The board is installed above a fan motor via a board case, and a mounting portion of the temperature detecting means and a fan motor are provided. Vacuum cleaner in which a part of the board case is cut off.
記冷却孔からの冷却風に影響されない位置に温度検知手
段を設けた請求項１〜４のいずれか１項に記載の電気掃
除機。5. The vacuum cleaner according to claim 1, wherein a cooling hole is provided at a rear portion of the fan motor, and a temperature detecting unit is provided at a position not affected by cooling air from the cooling hole.
ータと、前記ファンモータの上部に配され掃除機本体内
の温度を検知する第１の温度検知手段と、前記ファンモ
ータの下部に配され温度を検知する第２の温度検知手段
と、前記第１および第２の温度検知手段による検知温度
に応じて前記ファンモータへの通電量を可変する制御回
路を備えた電気掃除機。6. A fan motor having an exhaust port for generating a suction force, a first temperature detecting means disposed at an upper portion of the fan motor for detecting a temperature inside the cleaner body, and a fan motor at a lower portion of the fan motor. An electric vacuum cleaner comprising: a second temperature detecting means for detecting a temperature disposed; and a control circuit for varying an amount of power to the fan motor in accordance with a temperature detected by the first and second temperature detecting means.
ータと、前記ファンモータの上部に配され掃除機本体内
の温度を検知する第１の温度検知手段と、前記ファンモ
ータの前部に配され温度を検知する第３の温度検知手段
と、前記第１および第３の温度検知手段による検知温度
に応じて前記ファンモータへの通電量を可変する制御回
路を備えた電気掃除機。7. A fan motor having an exhaust port for generating a suction force, a first temperature detecting means disposed above the fan motor for detecting a temperature inside the cleaner body, and a front portion of the fan motor. And a control circuit for varying the amount of electricity supplied to the fan motor in accordance with the temperature detected by the first and third temperature detecting means.
手段を備え、制御回路で前記風量検出手段と温度検知手
段の検知温度に応じて前記ファンモータへの通電量を可
変するようにした請求項１〜７のいずれか１項に記載の
電気掃除機。8. An air flow detecting means for detecting an air flow of a fan motor, wherein a control circuit varies an amount of power supplied to the fan motor in accordance with a temperature detected by the air flow detecting means and a temperature detecting means. The vacuum cleaner according to any one of claims 1 to 7.
間的変化量を演算する変化量演算手段を設け、制御回路
で前記温度検知手段による検知温度と変化量演算手段に
よる演算結果に応じてファンモータへの通電量を可変す
るようにした請求項１〜７のいずれか１項に記載の電気
掃除機。9. A change amount calculating means for calculating a temporal change amount of the detected temperature detected by the temperature detecting means, and a control circuit according to the temperature detected by the temperature detecting means and a calculation result by the change amount calculating means. The vacuum cleaner according to any one of claims 1 to 7, wherein the amount of electricity to the fan motor is variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9263113A JPH1199096A (en) | 1997-09-29 | 1997-09-29 | Vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9263113A JPH1199096A (en) | 1997-09-29 | 1997-09-29 | Vacuum cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1199096A true JPH1199096A (en) | 1999-04-13 |
Family
ID=17385018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9263113A Pending JPH1199096A (en) | 1997-09-29 | 1997-09-29 | Vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1199096A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004075711A1 (en) * | 2003-02-25 | 2004-09-10 | Sharp Kabushiki Kaisha | Electric cleaner |
| JP2012120789A (en) * | 2010-12-10 | 2012-06-28 | Toshiba Corp | Vacuum cleaner |
| JP2014068794A (en) * | 2012-09-28 | 2014-04-21 | Sharp Corp | Vacuum cleaner |
| JP2016112283A (en) * | 2014-12-17 | 2016-06-23 | 株式会社マキタ | Vacuum cleaner |
| WO2016170849A1 (en) * | 2015-04-21 | 2016-10-27 | シャープ株式会社 | Electric vacuum cleaner |
| JP2018161169A (en) * | 2017-03-24 | 2018-10-18 | 三菱電機株式会社 | Vacuum cleaner |
| CN109240374A (en) * | 2018-08-13 | 2019-01-18 | 东莞启益电器机械有限公司 | A kind of dust catcher blocking automatic control circuit |
| JP2019030799A (en) * | 2018-12-04 | 2019-02-28 | シャープ株式会社 | Vacuum cleaner |
-
1997
- 1997-09-29 JP JP9263113A patent/JPH1199096A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004075711A1 (en) * | 2003-02-25 | 2004-09-10 | Sharp Kabushiki Kaisha | Electric cleaner |
| JP2012120789A (en) * | 2010-12-10 | 2012-06-28 | Toshiba Corp | Vacuum cleaner |
| JP2014068794A (en) * | 2012-09-28 | 2014-04-21 | Sharp Corp | Vacuum cleaner |
| JP2016112283A (en) * | 2014-12-17 | 2016-06-23 | 株式会社マキタ | Vacuum cleaner |
| WO2016170849A1 (en) * | 2015-04-21 | 2016-10-27 | シャープ株式会社 | Electric vacuum cleaner |
| JP2016202509A (en) * | 2015-04-21 | 2016-12-08 | シャープ株式会社 | Vacuum cleaner |
| JP2018161169A (en) * | 2017-03-24 | 2018-10-18 | 三菱電機株式会社 | Vacuum cleaner |
| CN109240374A (en) * | 2018-08-13 | 2019-01-18 | 东莞启益电器机械有限公司 | A kind of dust catcher blocking automatic control circuit |
| JP2019030799A (en) * | 2018-12-04 | 2019-02-28 | シャープ株式会社 | Vacuum cleaner |
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