JP2017140258A - Vacuum cleaner - Google Patents

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JP2017140258A
JP2017140258A JP2016024256A JP2016024256A JP2017140258A JP 2017140258 A JP2017140258 A JP 2017140258A JP 2016024256 A JP2016024256 A JP 2016024256A JP 2016024256 A JP2016024256 A JP 2016024256A JP 2017140258 A JP2017140258 A JP 2017140258A
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temperature
air passage
air
vacuum cleaner
circulation
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貴行 小辻
Takayuki Kotsuji
貴行 小辻
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Kowa Co Ltd
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Kowa Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of reliably exterminating mites or the like suctioned together with dust by a hot air circulation operation and also preventing overheat in a circulation air path.SOLUTION: A cleaner body 1 includes a temperature sensitive element 20 sensing air temperature in a circulation air path and control means controlling drive of an electric air blower 17 by air temperature sensed by he temperature sensitive element 20. The control means is so set as to have a setting range of sensed temperature in an air path in starting hot air circulation air path operation, cause the setting range and a predetermined sensed temperature in the air path in stopping hot air circulation operation to correspond to each other, and have a smaller difference between highest temperature of the setting range of sensed temperature in the air path in starting the hot air circulation air path operation and the predetermined sensed temperature in the air path in stopping the hot air circulation air path operation as the highest temperature is higher.SELECTED DRAWING: Figure 4

Description

本発明は、熱風循環風路運転が可能な電気掃除機であって、被清掃面として特に布団等に付着した塵埃、ダニ等を除去する用途に適した電気掃除機に関するものである。   The present invention relates to a vacuum cleaner capable of operating a hot-air circulating air passage, and particularly to a vacuum cleaner suitable for a purpose of removing dust, mites, and the like attached to a futon as a surface to be cleaned.

従来から、吸引したダニ等を駆除するため、熱風循環風路運転が可能な電気掃除機が開発されており、掃除機本体内に、吸込口部を有する集塵室と、この集塵室に吸気側が連通された電動送風機と、この電動送風機の排気風を前記集塵室に循環してこの集塵室を加熱する掃除機本体内上方に形成された排気循環風路と、前記循環する排気風の温度を検知して前記電動送風機の駆動を制御する感温素子とを備え、この感温素子は、前記排気循環風路中で前記電動送風機の上方に配設した電気掃除機が知られている(特許文献1)。   Conventionally, in order to remove sucked ticks and the like, a vacuum cleaner capable of hot air circulation air path operation has been developed, and in the vacuum cleaner body, there is a dust collection chamber having a suction port, and in this dust collection chamber An electric blower communicated on the intake side, an exhaust circulation air passage formed above the cleaner body for circulating the exhaust air of the electric blower to the dust collection chamber and heating the dust collection chamber, and the exhaust gas circulating A temperature sensing element that detects the temperature of the wind and controls the driving of the electric blower, and this temperature sensing element is known as an electric vacuum cleaner disposed above the electric blower in the exhaust circulation air passage. (Patent Document 1).

また、風路内の温度を検出する温度検出手段と、この温度検出手段が検出する動作開始時の風路内温度により、最長運転時間を設定するCPUとを備えた電気掃除機が知られている(特許文献2)。   There is also known an electric vacuum cleaner comprising temperature detecting means for detecting the temperature in the air passage, and a CPU for setting the longest operation time according to the temperature in the air passage at the start of operation detected by the temperature detecting means. (Patent Document 2).

特公平8−99号公報Japanese Patent Publication No. 8-99 特開平4−246313号公報JP-A-4-246313

上記特許文献1に記載された電気掃除機は、検知した排気風の温度に対応した電動送風機の停止温度の設定をしていない。しかしながら、感温素子であるサーミスタの特性として、実際の温度上昇とサーミスタの検知電圧の上昇との間にはタイムラグがあり、実際の温度が変化しても、サーミスタの検知電圧は即座に変化せず、少し遅れてから変化する。したがって、電動送風機の熱がサーミスタに十分に伝わっていない状態、例えば短時間の使用の後にすぐに熱風循環風路運転を開始した場合には、熱風循環風路運転中に実際の温度が高くなりすぎるという問題を有していた。   The electric vacuum cleaner described in Patent Document 1 does not set the stop temperature of the electric blower corresponding to the detected temperature of the exhaust air. However, there is a time lag between the actual temperature rise and the rise in the detected voltage of the thermistor as a characteristic of the thermistor that is a temperature sensitive element. Even if the actual temperature changes, the detected voltage of the thermistor does not change immediately. It changes after a little delay. Therefore, when the heat of the electric blower is not sufficiently transferred to the thermistor, for example, when the hot air circulation air passage operation is started immediately after a short period of use, the actual temperature becomes high during the hot air circulation air passage operation. Had too much problem.

一方、特許文献2に記載された電気掃除機は、温度検出手段が検出する動作開始時の風路内温度により、最長運転時間を設定する構成となっているが、一例として挙げられているのは、検出温度が20度以上の場合は、最長運転時間を3分とし、検出温度が20度以下の場合は、最長運転時間を5分とする2段階の場合のみであり、その効果は限定的なものとなっていた(特許文献2の段落0038参照)。   On the other hand, the electric vacuum cleaner described in Patent Document 2 is configured to set the longest operation time according to the temperature in the air passage at the start of the operation detected by the temperature detecting means, but is cited as an example. When the detected temperature is 20 ° C or higher, the maximum operating time is 3 minutes, and when the detected temperature is 20 ° C or lower, the maximum operating time is 5 minutes only, and the effect is limited. (See paragraph 0038 of Patent Document 2).

本発明は、前記従来の課題を解決するものであり、熱風循環風路運転によって、塵埃と共に吸引したダニ等を確実に駆除することができると共に、循環風路内の検知温度に対応して決められる複数の熱風循環運転停止温度によって、低い温度からの熱風循環運転であっても掃除機本体内、特に電動送風機が加熱し過ぎるのを防ぐことが可能な電気掃除機を提供することを目的とする。   The present invention solves the above-described conventional problems, and can reliably remove ticks and the like sucked together with dust by operating the hot air circulation air passage, and determines the temperature corresponding to the detected temperature in the circulation air passage. An object of the present invention is to provide a vacuum cleaner capable of preventing the inside of the vacuum cleaner body, particularly the electric blower from being heated too much, even if the hot air circulation operation is performed at a low temperature by a plurality of hot air circulation operation stop temperatures. To do.

前記従来の課題を解決するために、請求項1の電気掃除機の発明は、吸込口と、吸引風路と、集塵室と、電動送風機と、循環風路とを備えた掃除機本体において、前記吸込口と前記集塵室は前記吸引風路により連通し、前記集塵室と前記電動送風機とが連通し、前記電動送風機と前記吸引風路とが前記循環風路により連通して、吸込口を閉じることにより、前記吸引風路と、前記集塵室と、前記電動送風機と、前記循環風路とがループ状に構成されて熱風循環風路運転が可能な電気掃除機であって、前記掃除機本体は、前記循環風路に設けられ、該循環風路の空気温度を検知する感温素子と、該感温素子が検知した空気温度により前記電動送風機の駆動を制御する制御手段とを有し、前記制御手段は、前記熱風循環風路運転を停止させる場合に、熱風循環風路運転開始時の風路内の検知温度に設定幅を有し、該設定幅と、熱風循環風路運転停止時の風路内の所定の検知温度とを対応させ、熱風循環風路運転開始時の風路内の検知温度の設定幅の最高温度が高くなるにつれて、該最高温度と、前記熱風循環風路運転停止時の風路内の所定の検知温度との差が小さくなるように設定されていることを特徴としている。   In order to solve the above-described conventional problems, the invention of the vacuum cleaner according to claim 1 includes a vacuum cleaner body including a suction port, a suction air passage, a dust collection chamber, an electric blower, and a circulation air passage. The suction port and the dust collection chamber communicate with each other through the suction air passage, the dust collection chamber communicates with the electric blower, and the electric blower communicates with the suction air passage through the circulation air passage. The vacuum cleaner is configured such that the suction air passage, the dust collecting chamber, the electric blower, and the circulation air passage are configured in a loop shape and can be operated with a hot air circulation air passage by closing a suction port. The vacuum cleaner main body is provided in the circulation air passage, detects a temperature of the air in the circulation air passage, and a control means for controlling the driving of the electric blower based on the air temperature detected by the temperature detection device. And the control means stops the hot air circulation air path operation. The hot air circulation air passage operation has a set range for the detected temperature in the air passage, and the set width corresponds to a predetermined detection temperature in the air passage when the hot air circulation air passage operation is stopped, As the maximum temperature of the detection temperature setting range in the air passage at the start of the air passage operation increases, the difference between the maximum temperature and the predetermined detection temperature in the air passage when the hot air circulation air passage operation is stopped decreases. It is set so that it becomes.

請求項1の電気掃除機は、吸引風路と、集塵室と、電動送風機と、循環風路とがループ状に構成されて熱風循環風路運転を行うことができるので、塵埃と共に吸引したダニ等を確実に駆除することができる。また、電動送風機の駆動を制御する制御手段は、熱風循環風路運転開始時の風路内の検知温度に設定幅を有し、この設定幅と、熱風循環風路運転停止時の風路内の所定の検知温度とを対応させ、熱風循環風路運転開始時の風路内の検知温度の設定幅の最高温度が高くなるにつれて、最高温度と、熱風循環風路運転停止時の風路内の所定の検知温度との差が小さくなるように設定されているので、低い温度から熱風循環風路運転を開始する場合であっても、掃除機本体内、特に電動送風機が加熱し過ぎるのを防ぐことができる。   In the vacuum cleaner of claim 1, the suction air passage, the dust collecting chamber, the electric blower, and the circulation air passage are configured in a loop shape so that the hot air circulation air passage operation can be performed. It can surely remove ticks and the like. The control means for controlling the drive of the electric blower has a set width in the detected temperature in the air passage at the start of the hot air circulation air passage operation, and this set width and the air passage at the time of the hot air circulation air passage operation stop. As the maximum temperature of the detection temperature setting range in the air passage at the start of hot air circulation air passage operation increases, the maximum temperature and the air passage in the hot air circulation air passage operation stop Therefore, even if the hot air circulation air path operation is started from a low temperature, the inside of the cleaner body, in particular, the electric blower is overheated. Can be prevented.

請求項2の電気掃除機の発明は、制御手段は、熱風循環風路運転開始時の風路内の検知温度に設定幅を有し、熱風循環風路運転開始時の風路内の検知温度の設定幅の最高温度が高くなるに連れて、前記設定幅が小さくなるように設定されていることを特徴としている。   According to a second aspect of the present invention, the control means has a set range in the detected temperature in the air passage at the start of the hot air circulation air passage operation, and the detected temperature in the air passage at the start of the hot air circulation air passage operation. It is characterized in that the set width is set to become smaller as the maximum temperature of the set width becomes higher.

請求項2の電気掃除機は、熱風循環風路運転開始時の風路内の検知温度が高くなると、実際の温度との差が小さくなるという感温素子の特性を利用して、確実に循環風路内が加熱し過ぎるのを防ぐことができる。   The electric vacuum cleaner according to claim 2 reliably circulates by utilizing the characteristic of the temperature sensing element that the difference between the detected temperature and the actual temperature decreases when the detected temperature in the air path at the start of the hot air circulation air path operation starts. It is possible to prevent the air passage from being overheated.

請求項1及び2の発明は、熱風循環風路運転により、塵埃と共に吸引したダニ等を確実に駆除することができると共に、掃除機本体内、特に電動送風機が加熱し過ぎるのを防ぐことができる。   According to the first and second aspects of the present invention, the hot air circulation air path operation can surely remove ticks and the like sucked together with dust, and can prevent the inside of the cleaner body, particularly the electric blower, from being overheated. .

本発明に係る電気掃除機の全体を示す斜視図The perspective view which shows the whole vacuum cleaner which concerns on this invention 本発明を構成する掃除機本体を示す正面図The front view which shows the vacuum cleaner main body which comprises this invention 図2のA−A断面図AA sectional view of FIG. 本発明を構成する掃除機本体の本体カバーを外した状態の平面図The top view of the state which removed the main body cover of the vacuum cleaner main body which comprises this invention 図4のB−B断面図BB sectional view of FIG.

以下、本発明の実施形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

図1は、本発明に係る電気掃除機の全体を示す斜視図であり、図2は、本発明を構成する掃除機本体を示す正面図である。これらの図を用いて本発明に係る電気掃除機の概要について説明する。   FIG. 1 is a perspective view showing an entire electric vacuum cleaner according to the present invention, and FIG. 2 is a front view showing a cleaner main body constituting the present invention. The outline | summary of the vacuum cleaner which concerns on this invention is demonstrated using these figures.

本発明に係る電気掃除機10は、主に、布団に付着したダニやほこり等を除去するために使用される電気掃除機であり、後述する集塵室と、電動送風機とを備えた掃除機本体1と、掃除機用吸込具2とを備えている。また、掃除機本体1と掃除機用吸込具2は、ホース3によって連結されている。したがって、床面に付着している塵埃等は、掃除機用吸込具2によって吸引され、ホース3内部を通過した後、掃除機本体1の集塵室へと収容される。   The vacuum cleaner 10 according to the present invention is a vacuum cleaner mainly used for removing mites, dust and the like adhering to a futon, and includes a dust collection chamber described later and an electric blower. A main body 1 and a vacuum cleaner suction tool 2 are provided. The vacuum cleaner body 1 and the vacuum cleaner suction tool 2 are connected by a hose 3. Accordingly, dust or the like adhering to the floor is sucked by the vacuum cleaner suction tool 2, passes through the inside of the hose 3, and then accommodated in the dust collection chamber of the vacuum cleaner main body 1.

掃除機用吸込具2は、底面の前側に被清掃面から塵埃を吸引する幅広の吸込口を有し、回転清掃体が収納されている回転清掃体収納室(図示せず)と、該回転清掃体収納室に先端が連通する塵埃通路を有する幅広の上ケース4aと下ケース4bで形成された略直方体状の吸込具ケース4と、この吸込具ケース4の後部両側から突出するように吸込具ケース4に回転自在に取り付けられた一対の走行車輪5a、5bと、ホース3の前端部3aと連結する連結具6と、連結具6の側部に固定された操作ハンドル7とを備えている。   The vacuum cleaner suction tool 2 has a wide suction port for sucking dust from the surface to be cleaned on the front side of the bottom surface, a rotary cleaning body storage chamber (not shown) in which the rotary cleaning body is stored, and the rotation A suction box case 4 having a substantially rectangular parallelepiped shape formed by a wide upper case 4a and a lower case 4b having a dust passage communicating with the cleaning body storage chamber, and suction so as to protrude from both sides of the rear side of the suction tool case 4 A pair of traveling wheels 5 a and 5 b rotatably attached to the tool case 4, a connecting tool 6 connected to the front end 3 a of the hose 3, and an operation handle 7 fixed to a side portion of the connecting tool 6 are provided. Yes.

掃除機本体1は、本体上ケース8aと本体下ケース8bとで構成され、平面視が円形状であって側面が曲面にて形成されている本体ケース8と、本体ケース8に形成された連結口9と、本体上ケース8aに固定されているアーチ状の取っ手11と、本体下ケース8bに固定されている電源コード13を備えており、連結口9には、ホース3の後端部3bが連結している。また、本体上ケース8aには、電源スイッチ12aが設置されている。   The vacuum cleaner main body 1 is composed of a main body upper case 8a and a main body lower case 8b, a main body case 8 having a circular shape in plan view and a curved side surface, and a connection formed on the main body case 8. It has a port 9, an arch-shaped handle 11 fixed to the main body upper case 8 a, and a power cord 13 fixed to the main body lower case 8 b, and the connecting port 9 has a rear end 3 b of the hose 3. Are connected. The main body upper case 8a is provided with a power switch 12a.

前述したように、本発明に係る電気掃除機は、主に布団に付着したダニやほこり等を除去するために使用されるものであり、使用者は、一方の手で、掃除機本体1の取っ手11を把持して布団近傍に掃除機本体1を載置した後、他方の手で、掃除機用吸込具2の操作ハンドル7を把持して被掃除面である布団に掃除機用吸込具2の吸込口を当接することによって掃除が行われる。   As described above, the vacuum cleaner according to the present invention is mainly used to remove mites and dust attached to the futon, and the user can use one hand to After gripping the handle 11 and placing the vacuum cleaner main body 1 in the vicinity of the futon, the other hand grasps the operation handle 7 of the vacuum cleaner suction tool 2 and puts it on the futon which is the surface to be cleaned. Cleaning is performed by contacting the two suction ports.

上述のように、掃除機本体1は被掃除面である布団の近傍に載置しておけばよいので、従来の掃除機のように車輪を底面に設置する必要はない。また、ホース3の長さも従来の掃除機のホースと比較して短くすることができる。さらに、掃除機本体1の向きを変えたい場合には、取っ手11を把持し、平面視円形状の掃除機本体1の軸心を中心にして回転させればよいので、容易に掃除機本体1の向きを変えることができる。   As described above, the vacuum cleaner main body 1 may be placed in the vicinity of the futon, which is the surface to be cleaned, so there is no need to install wheels on the bottom surface as in a conventional vacuum cleaner. Moreover, the length of the hose 3 can also be shortened compared with the hose of the conventional cleaner. Furthermore, when it is desired to change the orientation of the cleaner body 1, the handle 11 can be gripped and rotated around the axis of the cleaner body 1 having a circular shape in plan view. You can change the direction.

図3は、図2のA−A断面図であり、図4は、本発明を構成する掃除機本体の本体カバーを外した状態の平面図である。なお、図4では、説明の都合から電動送風機を収納する上部のカバーを省略している。また、図5は、図4のB−B断面図である。これらの図を用いて本発明に係る電気掃除機の詳細について説明する。   FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2, and FIG. 4 is a plan view of the vacuum cleaner main body constituting the present invention with the main body cover removed. In FIG. 4, the upper cover that houses the electric blower is omitted for convenience of explanation. FIG. 5 is a sectional view taken along line BB in FIG. The details of the vacuum cleaner according to the present invention will be described with reference to these drawings.

本発明に係る電気掃除機の掃除機本体1は、吸込口14と、吸引風路15と、集塵室16と、電動送風機17と、循環風路18とを備えている。また、吸込口14と集塵室16は吸引風路15により連通し、集塵室16と電動送風機17とが連通し、電動送風機17と吸引風路15とが循環風路18により連通している。   The vacuum cleaner main body 1 of the electric vacuum cleaner according to the present invention includes a suction port 14, a suction air passage 15, a dust collection chamber 16, an electric blower 17, and a circulation air passage 18. The suction port 14 and the dust collection chamber 16 communicate with each other through the suction air passage 15, the dust collection chamber 16 and the electric blower 17 communicate with each other, and the electric blower 17 and the suction air passage 15 communicate with each other through the circulation air passage 18. Yes.

そして、開閉部材19で吸込口14を閉じることにより、吸引風路15と、集塵室16と、電動送風機17と、循環風路18とがループ状に構成されて熱風循環風路運転ができるように構成されている。尚、符号22は排気口であり、通常の電気掃除機として吸引運転を行う場合には、吸込口14から吸引された空気は排気口22から排出される。一方、熱風循環風路運転時には、吸引風路15及び循環風路18の内部が負圧となることから、排気口22から空気が排出されることはない。   Then, by closing the suction port 14 with the opening and closing member 19, the suction air passage 15, the dust collecting chamber 16, the electric blower 17, and the circulation air passage 18 are configured in a loop shape so that the hot air circulation air passage operation can be performed. It is configured as follows. In addition, the code | symbol 22 is an exhaust port, and when suctioning | operating as a normal vacuum cleaner, the air attracted | sucked from the suction inlet 14 is discharged | emitted from the exhaust outlet 22. FIG. On the other hand, during operation of the hot air circulation air passage, the suction air passage 15 and the circulation air passage 18 have negative pressure, so that air is not discharged from the exhaust port 22.

掃除機本体1は、循環風路18に設けられ、循環風路18の空気温度を検知する感温素子20と、この感温素子20が検知した空気温度により電動送風機17の駆動を制御する制御手段(図示せず)とを有している。感温素子20は、図4及び図5に示すように、循環風路18に設置され、循環風路18内の空気温度を検知しており、検知された温度情報は、制御手段によって、表1に示すように処理されている。

Figure 2017140258
The vacuum cleaner main body 1 is provided in the circulation air passage 18, and controls the temperature sensing element 20 that detects the air temperature of the circulation air passage 18 and controls the driving of the electric blower 17 by the air temperature detected by the temperature sensing element 20. Means (not shown). As shown in FIGS. 4 and 5, the temperature sensing element 20 is installed in the circulation air passage 18 and detects the air temperature in the circulation air passage 18, and the detected temperature information is displayed by the control means. 1 is processed.
Figure 2017140258

以下、一例を挙げて上記表1を説明すると、制御手段は、熱風循環風路運転を停止させる場合に、熱風循環風路運転開始時の風路内の検知温度に設定幅(40℃〜50℃)を有し、この設定幅(40℃〜50℃)内の温度と、熱風循環風路運転停止時の風路内の所定の検知温度(68℃)とを対応させ、熱風循環風路運転開始時の風路内の検知温度の設定幅(40℃〜50℃)の最高温度(50℃)が高くなるにつれて、この最高温度(50℃)と、熱風循環風路運転停止時の風路内の所定の検知温度(68℃)との差(18℃)が小さくなるように設定されている。   In the following, Table 1 will be described with an example. When the hot air circulation air path operation is stopped, the control means sets the detected temperature in the air path at the start of the hot air circulation air path operation to a set range (40 ° C. to 50 ° C. The temperature within the set range (40 ° C. to 50 ° C.) is associated with a predetermined detected temperature (68 ° C.) in the air passage when the hot air circulation air passage operation is stopped, and the hot air circulation air passage As the maximum temperature (50 ° C) of the set range (40 ° C to 50 ° C) of the detected temperature in the air passage at the start of operation increases, this maximum temperature (50 ° C) and the wind at the time of hot air circulation airway operation stop The difference (18 ° C.) from the predetermined detected temperature (68 ° C.) in the road is set to be small.

即ち、最高温度Bが50℃、60℃、70℃、75℃、80℃、85℃と高くなるにつれて、この最高温度Bと、熱風循環風路運転停止時の風路内の所定の検知温度Cとの差Dは、18℃、12℃、5℃、5℃、3℃、0℃と、小さくなるように設定されている。これにより、低い温度から熱風循環風路運転を開始する場合であっても、掃除機本体1内や、特に電動送風機17が加熱し過ぎるのを防ぐことができる。   That is, as the maximum temperature B increases to 50 ° C., 60 ° C., 70 ° C., 75 ° C., 80 ° C., and 85 ° C., this maximum temperature B and a predetermined detected temperature in the air passage when the hot air circulation air passage operation is stopped. The difference D from C is set to be as small as 18 ° C., 12 ° C., 5 ° C., 5 ° C., 3 ° C., and 0 ° C. Thereby, even if it is a case where a hot-air circulation wind path driving | operation is started from low temperature, it can prevent that the inside of the cleaner body 1, especially the electric blower 17 heats too much.

また、熱風循環風路運転開始時の風路内の検知温度の設定幅A内の最高温度Bが高くなるに連れて、設定幅Aの値が小さくなるように設定されている。即ち、最高温度Bが、50℃、60℃、70℃、75℃、80℃、85℃と高くなるにつれて、設定幅の値は、10℃、10℃、10℃、5℃、5℃、5℃と、幅の間隔が小さくなるように設定されている。これは、熱風循環風路運転開始時の風路内の検知温度が高くなると、実際の温度との差が小さくなるという感温素子20の特性を利用して、確実に掃除機本体内、特に電動送風機が加熱し過ぎるのを防いでいるのである。尚、感温素子20は、サーミスタを使用するのが好ましい。本実施例においては、負特性サーミスタ(Negative Temperature Coefficient Thermistor)という、温度が上がると抵抗値が下がる感温素子を使用しているが、正特性サーミスタ(Positive Temperature Coefficient Thermistor)を使用しても構わない。   Further, the value of the set width A is set to be smaller as the maximum temperature B within the set width A of the detected temperature in the air path at the start of the hot air circulation wind path operation becomes higher. That is, as the maximum temperature B increases to 50 ° C., 60 ° C., 70 ° C., 75 ° C., 80 ° C., 85 ° C., the value of the setting width is 10 ° C., 10 ° C., 10 ° C., 5 ° C., 5 ° C., The width is set to 5 ° C. so that the width interval is small. This is because the characteristic of the temperature sensing element 20 that the difference from the actual temperature is reduced when the detected temperature in the air path at the start of the hot air circulation air path operation is increased, is surely ensured in the cleaner body, in particular. The electric blower is prevented from overheating. The temperature sensitive element 20 preferably uses a thermistor. In this embodiment, a temperature sensitive element called a negative temperature thermistor (Negative Temperature Coefficient Thermistor) whose resistance value decreases as the temperature rises is used. However, a positive temperature coefficient thermistor (Positive Temperature Coefficient Thermistor) may be used. Absent.

また、電動送風機17には、サーモスタット21が設置されている。これは感温素子20や制御手段が故障して、熱風循環風路運転を停止できなくなった場合に電動送風機17を強制的に停止させるための安全装置である。このサーモスタット21は、電動送風機17を構成するモーターの巻線の温度を検知しており、サーモスタット21には、バイメタル方式のサーモスタットを使用するのが好ましい。これは、熱膨張係数の異なる2種類以上の金属または合金を、堅固に接着して板状に仕上げたもので、モーターの巻線がある一定の温度以上に上昇すると湾曲することで通電を遮断するものである。しかしながら金属の熱膨張を利用しているため、サーモスタット21が冷却されるまでの一定時間は通電が遮断されており、電気掃除機を使用できなくなる。本実施例では、サーモスタット21の検知温度が110℃になると、サーモスタット21が通電を遮断する構成としている。   The electric blower 17 is provided with a thermostat 21. This is a safety device for forcibly stopping the electric blower 17 when the temperature sensing element 20 or the control means fails and the hot air circulation air path operation cannot be stopped. This thermostat 21 detects the temperature of the winding of the motor constituting the electric blower 17, and it is preferable to use a bimetal type thermostat for the thermostat 21. This is a plate made of two or more metals or alloys with different coefficients of thermal expansion that are firmly bonded to each other, and when the winding of the motor rises above a certain temperature, it is bent and cuts off current. To do. However, since the thermal expansion of the metal is used, the energization is cut off for a certain period of time until the thermostat 21 is cooled, and the electric vacuum cleaner cannot be used. In this embodiment, when the detected temperature of the thermostat 21 reaches 110 ° C., the thermostat 21 is configured to cut off the energization.

上述したように、通常、感温素子20が検知する温度の範囲内(85℃未満)で熱風循環風路運転が行われる。しかし、電動送風機の熱が感温素子20に十分に伝わっていない状態、例えば短時間の使用の後にすぐに熱風循環風路運転を開始した場合には、低温時の感温素子20の特性である実際の温度との温度上昇に大きく差ができるため、感温素子20が停止温度を検知する前に、電動送風機17の温度が高くなりすぎてサーモスタット21が通電を遮断してしまう。そのため、本発明では、上述した通り、熱風循環風路運転開始時の風路内の検知温度に応じ、適切な停止温度を設定することで、確実に制御手段で電動送風機を停止させることができる。   As described above, the hot air circulation air path operation is normally performed within the temperature range (less than 85 ° C.) detected by the temperature sensing element 20. However, when the heat of the electric blower is not sufficiently transmitted to the temperature sensing element 20, for example, when the hot air circulation air path operation is started immediately after a short time use, the characteristics of the temperature sensing element 20 at low temperature Since there can be a large difference in temperature rise from a certain actual temperature, the temperature of the electric blower 17 becomes too high and the thermostat 21 cuts off the energization before the temperature sensing element 20 detects the stop temperature. Therefore, in the present invention, as described above, the electric blower can be reliably stopped by the control means by setting an appropriate stop temperature according to the detected temperature in the air passage when the hot air circulation air passage operation is started. .

本発明に係る電気掃除機は、熱風循環風路運転が可能であって、布団等の寝具の被清掃面に付着した塵埃やダニ等を除去するための電気掃除機として利用される。   The vacuum cleaner according to the present invention is capable of hot air circulation air path operation, and is used as a vacuum cleaner for removing dust, mites, and the like attached to a surface to be cleaned of bedding such as a futon.

1 掃除機本体
2 掃除機用吸込具
3 ホース
3a 前端部
3b 後端部
4 吸込具ケース
4a 上ケース
4b 下ケース
5a、5b 走行車輪
6 連結具
7 操作ハンドル
8 本体ケース
8a 本体上ケース
8b 本体下ケース
9 連結口
10 電気掃除機
11 取っ手
12a 電源スイッチ
13 電源コード
14 吸込口
15 吸引風路
16 集塵室
17 電動送風機
18 循環風路
19 開閉部材
20 感温素子
21 サーモスタット
22 排気口
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Vacuum cleaner suction tool 3 Hose 3a Front end part 3b Rear end part 4 Suction tool case 4a Upper case 4b Lower case 5a, 5b Traveling wheel 6 Connecting tool 7 Operation handle 8 Main body case 8a Main body upper case 8b Lower main body Case 9 Connecting port 10 Vacuum cleaner 11 Handle 12a Power switch 13 Power cord 14 Suction port 15 Suction air channel 16 Dust collection chamber 17 Electric blower 18 Circulating air channel 19 Opening / closing member 20 Temperature sensing element 21 Thermostat 22 Exhaust port

Claims (2)

吸込口と、吸引風路と、集塵室と、電動送風機と、循環風路とを備えた掃除機本体において、前記吸込口と前記集塵室は前記吸引風路により連通し、前記集塵室と前記電動送風機とが連通し、前記電動送風機と前記吸引風路とが前記循環風路により連通して、
吸込口を閉じることにより、前記吸引風路と、前記集塵室と、前記電動送風機と、前記循環風路とがループ状に構成されて熱風循環風路運転が可能な電気掃除機であって、
前記掃除機本体は、前記循環風路に設けられ、該循環風路の空気温度を検知する感温素子と、該感温素子が検知した空気温度により前記電動送風機の駆動を制御する制御手段とを有し、
前記制御手段は、前記熱風循環風路運転を停止させる場合に、熱風循環風路運転開始時の風路内の検知温度に設定幅を有し、該設定幅と、熱風循環風路運転停止時の風路内の所定の検知温度とを対応させ、熱風循環風路運転開始時の風路内の検知温度の設定幅の最高温度が高くなるにつれて、該最高温度と、前記熱風循環風路運転停止時の風路内の所定の検知温度との差が小さくなるように設定されていることを特徴とする電気掃除機。
In a vacuum cleaner body including a suction port, a suction air passage, a dust collection chamber, an electric blower, and a circulation air passage, the suction opening and the dust collection chamber communicate with each other through the suction air passage, and the dust collection The chamber and the electric blower communicate with each other, the electric blower and the suction air passage communicate with each other through the circulation air passage,
The vacuum cleaner is configured such that the suction air passage, the dust collecting chamber, the electric blower, and the circulation air passage are configured in a loop shape and can be operated with a hot air circulation air passage by closing a suction port. ,
The vacuum cleaner main body is provided in the circulation air passage, detects a temperature of the air in the circulation air passage, and a control means for controlling the driving of the electric blower based on the air temperature detected by the temperature detection element; Have
The control means has a setting range for the detected temperature in the air passage at the start of the hot air circulation air passage operation when the hot air circulation air passage operation is stopped, and the setting width and the hot air circulation air passage operation are stopped. Corresponding to the predetermined detected temperature in the air path, and as the maximum temperature of the set width of the detected temperature in the air path at the start of the hot air circulating air path operation increases, the maximum temperature and the hot air circulating air path operation An electric vacuum cleaner, characterized in that it is set so that a difference from a predetermined detected temperature in the air passage when stopped is small.
制御手段は、熱風循環風路運転開始時の風路内の検知温度に設定幅を有し、熱風循環風路運転開始時の風路内の検知温度の設定幅の最高温度が高くなるに連れて、前記設定幅が小さくなるように設定されていることを特徴とする請求項1に記載の電気掃除機。
The control means has a setting range for the detected temperature in the air path at the start of the hot air circulation air path operation, and as the maximum temperature of the set temperature of the detected temperature in the air path at the start of the hot air circulation air path operation increases, The vacuum cleaner according to claim 1, wherein the set width is set to be small.
JP2016024256A 2016-02-11 2016-02-11 Vacuum cleaner Pending JP2017140258A (en)

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Citations (8)

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JPH02249516A (en) * 1989-03-22 1990-10-05 Sharp Corp Insecticidal device of electric vacuum cleaner
JPH04212321A (en) * 1991-03-27 1992-08-03 Tokyo Electric Co Ltd Vacuum cleaner
JPH04246313A (en) * 1991-01-31 1992-09-02 Mitsubishi Electric Home Appliance Co Ltd Temperature controller of vacuum cleaner
JPH06104069A (en) * 1992-09-24 1994-04-15 Sanyo Electric Co Ltd Temperature control device for electric heater
JP2001147054A (en) * 1999-11-18 2001-05-29 Honda Motor Co Ltd Thermoelectric module type heat exchanger
JP2002272649A (en) * 2001-03-19 2002-09-24 Mitsubishi Electric Corp Pest extermination device of exhaust circulation type vacuum cleaner
JP2002291668A (en) * 2001-03-30 2002-10-08 Toshiba Tec Corp Vacuum cleaner
JP2007170729A (en) * 2005-12-21 2007-07-05 Matsushita Electric Works Ltd Temperature control device for floor heating

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02249516A (en) * 1989-03-22 1990-10-05 Sharp Corp Insecticidal device of electric vacuum cleaner
JPH04246313A (en) * 1991-01-31 1992-09-02 Mitsubishi Electric Home Appliance Co Ltd Temperature controller of vacuum cleaner
JPH04212321A (en) * 1991-03-27 1992-08-03 Tokyo Electric Co Ltd Vacuum cleaner
JPH06104069A (en) * 1992-09-24 1994-04-15 Sanyo Electric Co Ltd Temperature control device for electric heater
JP2001147054A (en) * 1999-11-18 2001-05-29 Honda Motor Co Ltd Thermoelectric module type heat exchanger
JP2002272649A (en) * 2001-03-19 2002-09-24 Mitsubishi Electric Corp Pest extermination device of exhaust circulation type vacuum cleaner
JP2002291668A (en) * 2001-03-30 2002-10-08 Toshiba Tec Corp Vacuum cleaner
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