JPH0716181A - Floor sucking tool for vacuum cleaner - Google Patents
Floor sucking tool for vacuum cleanerInfo
- Publication number
- JPH0716181A JPH0716181A JP16435493A JP16435493A JPH0716181A JP H0716181 A JPH0716181 A JP H0716181A JP 16435493 A JP16435493 A JP 16435493A JP 16435493 A JP16435493 A JP 16435493A JP H0716181 A JPH0716181 A JP H0716181A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- control circuit
- temperature coefficient
- chamber
- positive temperature
- 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
Landscapes
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、一般家庭で使用される
電気掃除機の床用吸込具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor suction tool for an electric vacuum cleaner used in general households.
【０００２】[0002]
【従来の技術】近年、この種の電気掃除機の床用吸込具
内には、モーター及び制御回路内等に過電流が流れた場
合にモーター、制御回路の損傷、及び、床用吸込具本体
の発煙、発火を未然に防ぐ保護装置を有している。2. Description of the Related Art In recent years, in a floor suction tool of this type of vacuum cleaner, when an overcurrent flows through the motor and the control circuit, the motor and the control circuit are damaged, and the floor suction tool body is also damaged. It has a protective device to prevent smoke and fire from occurring.
【０００３】従来、この種の電気掃除機の床用吸込具は
特開平２−１５９２３２号公報に示すような構成が一般
的であつた。Conventionally, a floor suction tool for an electric vacuum cleaner of this type has generally been constructed as shown in Japanese Patent Laid-Open No. 2-159232.
【０００４】以下、その構成について図３を参照しなが
ら説明する。図３に示すように、床用吸込具本体１は、
前部に吸込室２を有し、前記吸込室２と吸込通路３が連
通しており、後部にモーター室６と回路室７を有してい
る。吸込室２内に回転自在に支持された回転ブラシ８を
配し、モーター室６には、前記回転ブラシ８を駆動する
駆動モーター９を有している。回路室７には、前記駆動
モーターを制御する制御回路１０を有し、前記制御回路
１０内には、駆動モーター９に過電流が流れないように
保護装置として温度正特性サーミスタ１１を有してい
る。この回路室７には、制御回路１０を冷却する目的で
開口部１２を設けていた。The structure will be described below with reference to FIG. As shown in FIG. 3, the floor suction tool body 1 is
The suction chamber 2 is provided in the front portion, the suction chamber 2 and the suction passage 3 are communicated with each other, and the motor chamber 6 and the circuit chamber 7 are provided in the rear portion. A rotary brush 8 rotatably supported is arranged in the suction chamber 2, and a drive motor 9 for driving the rotary brush 8 is provided in the motor chamber 6. The circuit room 7 has a control circuit 10 for controlling the drive motor, and the control circuit 10 has a temperature positive temperature coefficient thermistor 11 as a protection device for preventing an overcurrent from flowing to the drive motor 9. There is. The circuit room 7 was provided with an opening 12 for the purpose of cooling the control circuit 10.
【０００５】[0005]
【発明が解決しようとする課題】しかし、このような従
来の電気掃除機の床用吸込具１の構成では、回路室７の
後部に、温度正特性サーミスタ１１冷却の為、冷却通路
をなす開口部１２を設けているが吸気通路構成が複雑
で、冷却効果も小さいため回路１０自体の温度上昇に伴
い温度正特性サーミスタ１１の早効きが発生する問題が
あつた。また、吸込室２以外からも空気を吸引している
ため塵埃が回路室７内に侵入し回路１０が故障してしま
う問題があり、また、吸込室２以外からも吸引する開口
部１２を設けているため吸込室２を流れる空気の量が減
少し集塵効率が悪くなつてしまう問題があつた。However, in the construction of the floor suction tool 1 of the conventional vacuum cleaner as described above, an opening forming a cooling passage is formed in the rear portion of the circuit chamber 7 for cooling the positive temperature coefficient thermistor 11. Although the portion 12 is provided, the structure of the intake passage is complicated and the cooling effect is small, so that there is a problem that the temperature positive temperature coefficient thermistor 11 is prematurely activated as the temperature of the circuit 10 itself rises. Further, since air is sucked from other than the suction chamber 2, there is a problem that dust enters the circuit chamber 7 and the circuit 10 breaks down. Further, an opening 12 for sucking air from other than the suction chamber 2 is provided. Therefore, there is a problem that the amount of air flowing through the suction chamber 2 decreases and the dust collection efficiency deteriorates.
【０００６】本発明は、上記課題を解決するもので、温
度正特性サーミスタ１１の冷却が確実にできることによ
り温度正特性サーミスタ１１の動作性をよくすることお
よび吸込室２に効率よく吸引風を流すことによりゴミが
よく取れる電気掃除機の床用吸込具を提供することを目
的としている。The present invention solves the above-mentioned problems, and improves the operability of the positive temperature coefficient PTC thermistor 11 by reliably cooling the positive temperature coefficient PTC thermistor 11 and efficiently causes suction air to flow through the suction chamber 2. The object of the present invention is to provide a floor suction tool for an electric vacuum cleaner that can remove dust well.
【０００７】[0007]
【課題を解決するための手段】このような従来の問題点
を解決すべく本発明の第一の手段は、回転ブラシを有す
る吸込室と、この回転ブラシを駆動する駆動モーター
と、前記吸込室と連通した吸込通路を形成し、かつ回転
自在に設けたパイプ部と温度正特性サーミスタを有し、
前記駆動モーターを制御する制御回路とを備え、前記制
御回路は，この吸込通路と連通した回路室内に配設し、
温度正特性サーミスタの一部又は、全部を吸込通路に臨
ませたものである。第二の手段においては、制御回路の
温度正特性サーミスタを冷却する冷却フィンを取付け、
この冷却フィンを吸込通路に面して、吸込通路内に突出
させるべく設けられたものである。In order to solve such a conventional problem, the first means of the present invention is a suction chamber having a rotary brush, a drive motor for driving the rotary brush, and the suction chamber. Has a pipe part and a temperature positive temperature coefficient thermistor that are rotatably provided, forming a suction passage communicating with
A control circuit for controlling the drive motor, wherein the control circuit is disposed in a circuit chamber communicating with the suction passage,
The positive temperature coefficient thermistor is partially or entirely exposed to the suction passage. In the second means, a cooling fin for cooling the temperature positive temperature coefficient thermistor of the control circuit is attached,
The cooling fin is provided so as to face the suction passage and protrude into the suction passage.
【０００８】[0008]
【作用】上記本発明の第一の手段において、制御回路及
び温度正特性サーミスタを吸気通路を形成するパイプ部
と連通した回路室に配設し、温度正特性サーミスタの一
部又は、全部を吸込通路に臨ませたことにより温度正特
性サーミスタの冷却が確実にできるとともに温度正特性
サーミスタの動作性をよくすることができる。また吸込
口以外の冷却口を設ける必要がなくなるため吸込口に効
率よく吸引風を流すことができるため集塵効率の向上を
実現できる。第二の手段においては温度正特性サーミス
タに設けた冷却フィンを吸込通路に面して、吸込通路内
に突出させたことにより温度正特性サーミスタの冷却が
さらに確実にでき、塵埃を含んだ空気が回路内を流れる
ことを防止でき、回路の塵埃の付着を防止ができるとと
もに回路の耐久性の向上を実現できるものである。In the first means of the present invention, the control circuit and the temperature positive temperature coefficient thermistor are arranged in the circuit chamber communicating with the pipe portion forming the intake passage, and a part or all of the temperature positive temperature coefficient thermistor is sucked. By facing the passage, it is possible to reliably cool the PTC thermistor and improve the operability of the PTC thermistor. Further, since it is not necessary to provide a cooling port other than the suction port, it is possible to efficiently flow the suction air through the suction port, so that the dust collection efficiency can be improved. In the second means, the cooling fin provided in the PTC thermistor faces the suction passage and protrudes into the suction passage, so that the PTC thermistor can be cooled more reliably and air containing dust is It is possible to prevent flow in the circuit, prevent dust from adhering to the circuit, and improve durability of the circuit.
【０００９】[0009]
【実施例】以下、本発明の第一の手段の一実施例につい
て図１を参照しながら説明する。２１は吸込具本体で、
回転ブラシ２３を内蔵した吸込室２２を有し、この回転
ブラシ２３を駆動する駆動モーター２４を内蔵してい
る。２５は吸込通路で、吸込室２２と連通し、この吸込
通路２５を形成するパイプ部３１の一部は回路室２７を
形成している。この回路室２７には、前記駆動モーター
２４を制御する制御回路２８を取付け蓋２９にて固定し
ている。また、この回路室２７の下部にパイプ部３１の
吸込通路２５と連通する穴部３０を形成しいる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the first means of the present invention will be described below with reference to FIG. 21 is a suction tool body,
It has a suction chamber 22 containing a rotating brush 23, and a drive motor 24 for driving this rotating brush 23. Reference numeral 25 denotes a suction passage, which communicates with the suction chamber 22 and a part of a pipe portion 31 forming the suction passage 25 forms a circuit chamber 27. A control circuit 28 for controlling the drive motor 24 is fixed to the circuit chamber 27 with a mounting lid 29. In addition, a hole 30 communicating with the suction passage 25 of the pipe 31 is formed in the lower portion of the circuit chamber 27.
【００１０】次に、この実施例における動作、作用を説
明する。吸込具本体２１にてじゅうたん上を掃除する場
合において、回転ブラシ２３を回転させて掃除を行うと
駆動モーター２４に負荷が加わる為、温度正特性サーミ
スタ２６が発熱する。しかし、温度正特性サーミスタ２
６の温度が上昇してもこの吸込通路２５と連通した回路
室２７に温度正特性サーミスタ２６を配置し、その一部
又は、全部を吸込通路２５に臨ませたことにより吸込通
路２５を通る吸引力で冷却が確実に行えるので温度正特
性サーミスタ２６が効率よく冷却され、通常の掃除作業
中には、動作することなく掃除作業が継続できる。また
吸込口２２以外の冷却口を設ける必要がないため吸込口
２２に効率よく吸引風を流すことができ集塵効率の向上
を実現できる。Next, the operation and action of this embodiment will be described. When cleaning the carpet with the suction tool body 21, if the rotary brush 23 is rotated to perform cleaning, a load is applied to the drive motor 24, so that the positive temperature coefficient thermistor 26 generates heat. However, the positive temperature coefficient thermistor 2
Even if the temperature of 6 rises, the temperature positive temperature coefficient thermistor 26 is arranged in the circuit chamber 27 communicating with the suction passage 25, and a part or all of the thermistor 26 is exposed to the suction passage 25, so that suction through the suction passage 25 occurs. The positive temperature coefficient thermistor 26 is efficiently cooled because the cooling can be reliably performed by the force, and the cleaning work can be continued without operating during the normal cleaning work. Further, since it is not necessary to provide a cooling port other than the suction port 22, the suction air can be efficiently flowed to the suction port 22 and the dust collection efficiency can be improved.
【００１１】つぎに、第二の実施例について図２を参照
しながら説明する。上記第一の手段で明記した回路室２
７に取付けた正特性サーミスタ２６を有する制御回路２
８に、温度正特性サーミスタ２６を冷却する冷却フィン
３２を取付け、この冷却フィン３２を吸込通路２５に面
して、吸込通路２５内に突出させた。Next, a second embodiment will be described with reference to FIG. Circuit room 2 specified in the first means above
Control circuit 2 having positive temperature coefficient thermistor 26 attached to No. 7
A cooling fin 32 for cooling the positive temperature coefficient thermistor 26 was attached to 8, and the cooling fin 32 was made to project into the suction passage 25 so as to face the suction passage 25.
【００１２】次に、この実施例における動作、作用を説
明する。吸込具本体２１にてじゅうたん上を掃除する場
合において、回転ブラシ２３を回転させて掃除を行うが
駆動モーター２４に負荷が加わる為、温度正特性サーミ
スタ２６が発熱する。しかし温度正特性サーミスタ２６
の温度が上昇しても吸気通路２５内に突出した冷却フィ
ン３２が確実に冷却されるので、温度正特性サーミスタ
ー２６がより確実に効率よく冷却され、通常の掃除作業
中には、動作することなく掃除作業が継続できる。ま
た、上記構成により塵埃を含んだ冷却風が制御回路内を
流れることを防止できるので、制御回路２７の塵埃の付
着防止ができ制御回路の耐久性の向上を実現できる。Next, the operation and action of this embodiment will be described. When cleaning the carpet with the suction tool body 21, the rotary brush 23 is rotated for cleaning, but the load is applied to the drive motor 24, so that the positive temperature coefficient thermistor 26 generates heat. However, the positive temperature coefficient thermistor 26
Even if the temperature rises, the cooling fins 32 protruding into the intake passage 25 are surely cooled, so that the temperature positive temperature coefficient thermistor 26 is more surely and efficiently cooled, and operates during normal cleaning work. The cleaning work can be continued without it. Further, since the cooling air containing dust can be prevented from flowing in the control circuit by the above configuration, the adhesion of dust to the control circuit 27 can be prevented and the durability of the control circuit can be improved.
【００１３】[0013]
【発明の効果】以上の実施例から明らかなように、本発
明は、第一の手段において、温度正特性サーミスタを有
する制御回路を回転自在に設けたパイプ部に形成した回
路室に配設し、温度正特性サーミスタの一部又は、全部
を吸込通路に臨ませたことから、吸込口本体内の吸気通
路構成の簡単化ができ、温度正特性サーミスタの冷却が
確実にできので温度正特性サーミスタの動作性をよくす
ることができる。また吸込口以外の冷却口を設ける必要
がなくなるため吸込口に効率よく吸引風を流すことがで
き集塵効率の向上を実現できる。As is apparent from the above embodiments, according to the first aspect of the present invention, the control circuit having the temperature positive temperature coefficient thermistor is arranged in the circuit chamber formed in the rotatably provided pipe portion. Since a part or all of the PTC thermistor is exposed to the suction passage, the structure of the intake passage in the suction port body can be simplified, and the PTC thermistor can be surely cooled. The operability of can be improved. Further, since it is not necessary to provide a cooling port other than the suction port, the suction air can be efficiently flowed to the suction port, and the dust collection efficiency can be improved.
【００１４】第二の手段において、温度正特性サーミス
タに冷却フィンを取付け、吸込通路に面して突出させる
ことにより、温度正特性サーミスタの冷却がさらに確実
にできる。また温度正特性サーミスタを有する回路に塵
埃の付着の防止ができることにより制御回路の耐久性の
向上が計れ操作性がよく、耐久性のある、使い勝手のよ
い電気掃除機の床用吸込具を提供できる。In the second means, by mounting the cooling fins on the PTC thermistor and projecting them toward the suction passage, the PTC thermistor can be cooled more reliably. Further, since the dust can be prevented from adhering to the circuit having the temperature positive temperature coefficient thermistor, the durability of the control circuit can be improved, and the operability is good, and the durable and convenient vacuum suction floor suction device can be provided. .
【図１】本発明の一実施例を示す電気掃除機の床用吸込
具の断面図FIG. 1 is a sectional view of a floor suction tool of an electric vacuum cleaner showing an embodiment of the present invention.
【図２】本発明の他の実施例における床用吸込具の断面
図FIG. 2 is a cross-sectional view of a floor suction tool according to another embodiment of the present invention.
【図３】従来例を示す床用吸込具の上部吸込口を取り外
した上面図FIG. 3 is a top view showing a conventional floor suction tool with an upper suction port removed.
２２ 吸込室 ２３ 回転ブラシ ２４ 駆動モーター ２５ 吸込通路 ２６ 温度正特性サーミスタ ２７ 回路室 ２８ 制御回路 ３１ パイプ部 ３２ 冷却フィン 22 Suction Chamber 23 Rotating Brush 24 Drive Motor 25 Suction Passage 26 Positive Temperature Characteristic Thermistor 27 Circuit Room 28 Control Circuit 31 Pipe Part 32 Cooling Fin
Claims (2)
ラシを駆動する駆動モーターと、前記吸込室と連通した
吸込通路を形成しかつ回転自在に設けたパイプ部と、前
記駆動モーターを制御する制御回路とを備え、前記制御
回路は、温度正特性サーミスタを有し、この吸込通路と
連通した回路室内に制御回路を配設し、前記温度正特性
サーミスタの一部又は、全部を吸込通路に臨ませた電気
掃除機の床用吸込具。1. A suction chamber having a rotary brush, a drive motor for driving the rotary brush, a pipe portion which forms a suction passage communicating with the suction chamber and is rotatably provided, and controls the drive motor. And a control circuit, the control circuit has a temperature positive temperature coefficient thermistor, the control circuit is arranged in a circuit chamber communicating with the suction passage, and a part or all of the temperature positive temperature coefficient thermistor is placed in the suction passage. The suction tool for the floor of the electric vacuum cleaner facing.
ラシを駆動する駆動モーターと、前記吸込室と連通した
吸込通路を形成しかつ回転自在に設けたパイプ部と、前
記駆動モーターを制御する制御回路とを備え、前記制御
回路は、温度正特性サーミスタを有し、前記温度正特性
サーミスタを冷却する冷却フィンを制御回路に取付け、
この冷却フィンを吸込通路に面して、吸込通路内に突出
させた電気掃除機の床用吸込具。2. A suction chamber having a rotary brush, a drive motor for driving the rotary brush, a pipe portion forming a suction passage communicating with the suction chamber and rotatably provided, and controlling the drive motor. A control circuit, wherein the control circuit has a positive temperature coefficient thermistor, and a cooling fin for cooling the positive temperature coefficient thermistor is attached to the control circuit,
A suction device for a floor of an electric vacuum cleaner, wherein the cooling fin faces the suction passage and protrudes into the suction passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16435493A JPH0716181A (en) | 1993-07-02 | 1993-07-02 | Floor sucking tool for vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16435493A JPH0716181A (en) | 1993-07-02 | 1993-07-02 | Floor sucking tool for vacuum cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0716181A true JPH0716181A (en) | 1995-01-20 |
Family
ID=15791561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16435493A Pending JPH0716181A (en) | 1993-07-02 | 1993-07-02 | Floor sucking tool for vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716181A (en) |
-
1993
- 1993-07-02 JP JP16435493A patent/JPH0716181A/en active Pending
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