JP3120194B2 - Hot air blower - Google Patents
Hot air blowerInfo
- Publication number
- JP3120194B2 JP3120194B2 JP04259129A JP25912992A JP3120194B2 JP 3120194 B2 JP3120194 B2 JP 3120194B2 JP 04259129 A JP04259129 A JP 04259129A JP 25912992 A JP25912992 A JP 25912992A JP 3120194 B2 JP3120194 B2 JP 3120194B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heater
- sensitive element
- air
- 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.)
- Expired - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ヘアードライヤ、温風
ファン式こたつ、温風ヒータあるいは温風乾燥機などの
ように過昇温防止用の感熱素子を備えた温風機に係り、
更に詳しくはその感熱素子の即応性の向上を図るもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air dryer having a heat-sensitive element for preventing excessive temperature rise, such as a hair dryer, a hot air fan type kotatsu, a hot air heater or a hot air dryer.
More specifically, the responsiveness of the thermosensitive element is improved.
【０００２】[0002]
【従来の技術】例えば、ヘアードライヤの温度制御装置
として、特開昭５５−２８６８４号公報などに開示され
るように過昇温防止用のサーモスタットを、ヒータを巻
き付けた断面十字状のヒータ基板の上に設置することは
公知である。2. Description of the Related Art For example, as a temperature control device for a hair dryer, a thermostat for preventing an excessive temperature rise as disclosed in Japanese Patent Application Laid-Open No. 55-28684 is used for a heater substrate having a cross-shaped cross section around which a heater is wound. Installation on top is known.
【０００３】また、特公昭５７−３０４８５号公報や実
開昭５８−７１３０７号公報などに開示されるように過
昇温防止用のサーモスタットを通風路内に設置し、その
サーモスタットの接点に吸込み空気中の塵埃が付着して
接触不良を起こすことのないようにサーモスタットの風
上側に風防ないし防塵カバーを固定配置することも公知
である。Further, as disclosed in Japanese Patent Publication No. 57-30485 and Japanese Utility Model Application Laid-Open No. 58-71307, a thermostat for preventing overheating is installed in a ventilation path, and air is sucked into a contact of the thermostat. It is also known that a windshield or a dustproof cover is fixedly arranged on the windward side of the thermostat so that dust inside may not be attached to cause poor contact.
【０００４】[0004]
【発明が解決しようとする課題】しかるに、ヘアードラ
イヤが使用中、何らかの原因で、例えば、不用意にタオ
ルなどが垂れ下がって吸込口や吹出口を塞いだり、ヘア
ーブロッサーにあっては、例えばブラシアタッチメント
等の風吹出口に対して毛髪を巻過ぎたりすると、送風能
力を急速に低下減少し、これにより風温が異常に上昇す
るが、こうした急速な風温の上昇変化に上記サーモスタ
ットが追随できず、応答時間に遅れが生じると、毛髪や
機内部品を高熱で傷めたり、焦がすという事態が生じ
る。こうした問題はヘアードライヤに限られず、温風こ
たつや温風ヒータなどにおいても同様なことが言える。However, while the hair dryer is in use, for some reason, for example, a towel or the like inadvertently hangs to block the suction port and the air outlet, or a hair attachment such as a brush attachment If the hair is too wound around the wind outlet, etc., the blowing capacity will be rapidly reduced and reduced, and the wind temperature will rise abnormally, but the thermostat will not be able to follow such a rapid rise in wind temperature, If the response time is delayed, the hair and in-flight parts may be damaged or burned by high heat. Such a problem is not limited to the hair dryer, and the same can be said for a hot air kotatsu or a hot air heater.
【０００５】そこで本発明の目的は、上記のような、本
体ケース内に送風ファンとヒータが備えられ、かつヒー
タへの通電を制御する過昇温防止用の感熱素子が備えら
れた温風機において、風量の増減に伴う感熱素子まわり
の環境を改善することにより感熱素子が急速な風量の低
減による過昇温にも即応でき、応答時間の短縮化を図る
点にある。Accordingly, an object of the present invention is to provide a warm air blower having a blower fan and a heater in a main body case and a heat-sensitive element for controlling energization of the heater for preventing excessive temperature rise. In addition, by improving the environment around the heat-sensitive element due to the increase and decrease of the air flow, the heat-sensitive element can immediately respond to an excessive temperature rise due to a rapid decrease in the air flow, thereby shortening the response time.
【０００６】[0006]
【課題を解決するための手段】第１に、本発明は、図１
に例示するように感熱素子１２とヒータ５とを互いに向
き合わせて近接配置し、この感熱素子１２とヒータ５と
の間に、風量の増減に伴って感熱素子１２とヒータ５間
を遮る遮熱姿勢と感熱素子１２とヒータ５間から退いて
その間を開通する退出姿勢とにわたって出入りする遮熱
手段１４を配設したものである。第２に、本発明は、図
１２および図１４に例示するように、感熱素子１２とヒ
ータ５とを互いに向き合わせて近接配置し、この感熱素
子１２と送風ファン７との間に冷風ないし低温風を感熱
素子１２に導く冷却通路２１を形成するとともに、風量
の増減に伴って前記冷却通路２１を開閉する開閉手段２
２を設けたものである。SUMMARY OF THE INVENTION First, the present invention relates to FIG.
As shown in the example, the heat-sensitive element 12 and the heater 5 are arranged close to each other so as to face each other, and a heat shield between the heat-sensitive element 12 and the heater 5 is interposed between the heat-sensitive element 12 and the heater 5 according to an increase or decrease in the air flow. The heat shield means 14 is provided to enter and exit from the attitude and the evacuation attitude which retreats from the heat-sensitive element 12 and the heater 5 and opens between them. Secondly, as shown in FIGS. 12 and 14, the present invention arranges the heat-sensitive element 12 and the heater 5 close to each other so as to face each other, and cools or cools the air between the heat-sensitive element 12 and the blower fan 7. Opening / closing means 2 for forming a cooling passage 21 for guiding wind to the thermosensitive element 12 and for opening / closing the cooling passage 21 in accordance with an increase or decrease in the amount of air;
2 is provided.
【０００７】[0007]
【作用】第１の本発明の上記構成によれば、通常の風量
による送風時には、遮熱手段１４がヒータ５と感熱素子
１２との間を遮ってその間の絶縁性を維持するので、感
熱素子１２とヒータ５の両者が近接配置されていても感
熱素子１２がヒータ５の輻射熱により誤動作を起こすよ
うなこともなく、常に安定した温風を供給することがで
きる。しかし、何らかの原因で風量が低下減少すると、
遮熱手段１４が感熱素子１２とヒータ５間から退いてそ
の間を開通するので、感熱素子１２の周辺温度がヒータ
５からの輻射熱を直接受けることにより急速に上昇し、
機内の温度が上昇する前に先立って感熱素子１２が動作
してヒータ５への通電を遮断することになり、過昇温に
直ちに応ずることになる。According to the above construction of the first aspect of the present invention, when air is blown at a normal air volume, the heat shield means blocks the space between the heater 5 and the heat sensitive element 12 and maintains the insulation therebetween. Even if both the heater 12 and the heater 5 are arranged close to each other, the thermosensitive element 12 does not malfunction due to the radiant heat of the heater 5 and can always supply stable hot air. However, if the air volume decreases for some reason,
Since the heat-shielding means 14 retreats from and opens between the heat-sensitive element 12 and the heater 5, the temperature around the heat-sensitive element 12 rises rapidly by directly receiving the radiant heat from the heater 5,
Before the temperature inside the machine rises, the heat-sensitive element 12 operates and cuts off the power supply to the heater 5, thereby immediately responding to the excessive temperature rise.
【０００８】第２の本発明の上記構成によれば、通常の
風量による送風時には、開閉手段２２が冷却通路２１を
開いて冷風ないし低温風を感熱素子１２へ送るので、感
熱素子１２とヒータ５の両者が近接配置されていても感
熱素子１２がヒータ５の輻射熱により誤動作を起こすよ
うなこともなく、常に安定した温風を供給することがで
きる。そして、何らかの原因で風量が低下減少すると、
開閉手段２２が冷却通路２１を閉じて冷風ないし低温風
を感熱素子１２へ送らなくなるので、感熱素子１２がヒ
ータ５からの輻射熱を直接受けることにより感熱素子１
２の周辺温度が急速に上昇し、機内の温度が上昇する前
に即座に感熱素子１２が作用してヒータ５への通電を遮
断することになり、過昇温に即応できることになる。According to the second aspect of the present invention, when air is blown at a normal air volume, the opening / closing means 22 opens the cooling passage 21 and sends cool air or low-temperature air to the heat-sensitive element 12. Even if both of them are arranged close to each other, the thermosensitive element 12 does not malfunction due to the radiant heat of the heater 5 and can always supply a stable hot air. And if the air volume decreases for some reason,
Since the opening / closing means 22 closes the cooling passage 21 and stops sending cool air or low-temperature air to the heat-sensitive element 12, the heat-sensitive element 12 directly receives the radiant heat from the heater 5, and
The ambient temperature of 2 rises rapidly, and the heat-sensitive element 12 acts immediately before the temperature inside the machine rises to cut off the power supply to the heater 5, so that it is possible to immediately respond to an excessive temperature rise.
【０００９】[0009]
【実施例】本発明を、髪巻アタッチメントやヘアーブラ
シアタッチメント等のアタッチメントが吹出口に着脱さ
れるブロッサー型のヘアードライヤに適用した実施例に
ついて図面に基づき説明する。図２はヘアードライヤを
示しており、これの本体ケース１は前後方向に長い筒形
状に形成されてその前端側に吹出口２を、後端側に吸込
口３をそれぞれ有している。吹出口２には髪巻アタッチ
メント４やヘアーブラシアタッチメントなどが着脱可能
に取り付けられる。本体ケース１内の吹出口２と吸込口
３との間にはヒータ５と、モータ６で駆動される送風フ
ァン７とを並べて配設している。ヒータ５は、図４およ
び図５に示すように水平基板９と垂直基板１０とを断面
十字状に組み合わせたヒータ基板１１の外周に巻き付け
てなる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a cross hair type hair dryer in which attachments such as a hair winding attachment and a hair brush attachment are attached to and detached from an outlet will be described with reference to the drawings. FIG. 2 shows a hair dryer, in which a main body case 1 is formed in a tubular shape that is long in the front-rear direction, and has a blowout port 2 at a front end side and a suction port 3 at a rear end side. A hair winding attachment 4 and a hair brush attachment are detachably attached to the outlet 2. A heater 5 and a blower fan 7 driven by a motor 6 are arranged side by side between the outlet 2 and the inlet 3 in the main body case 1. As shown in FIGS. 4 and 5, the heater 5 is formed by winding a horizontal substrate 9 and a vertical substrate 10 around an outer periphery of a heater substrate 11 in which a cross section is combined.
【００１０】垂直基板１０上におけるヒータ５の風下側
端の基板外周寄りに、バイメタル式サーモスタットから
なる過昇温防止用の感熱素子１２をヒータ５に対峙させ
て近接配置する。この感熱素子１２は、図６に示す回路
図のようにヒータ５と電源８との間に直列につながれて
おり、本体ケース１内の温風温度やヒータ５の温度が異
常に上昇し過ぎるとその接点が離れてヒータ５への通電
を遮断し、温風温度が下がるとその接点が接して再びヒ
ータ５へ通電する、というものである。なお、図６の回
路図において、スイッチ１３はモータ６およびヒータ５
への通電を制御して、運転状態を電源オフから冷風・弱
温風・強温風の順に切り換える。すなわち、スイッチ１
３は第１端子ないし第５端子の５個の接続端子を有
し、図２に示すそのスライド式操作つまみ１３ａがオフ
位置から前方へ順次段階的にスライド移動することによ
り前記各端子が図６の表に示すように接続されて運転状
態の切換えを行う。At the leeward end of the heater 5 on the vertical substrate 10 and near the outer periphery of the substrate, a heat-sensitive element 12 made of a bimetallic thermostat for preventing excessive temperature rise is disposed close to and facing the heater 5. The heat-sensitive element 12 is connected in series between the heater 5 and the power supply 8 as shown in the circuit diagram of FIG. 6, and if the temperature of the hot air in the main body case 1 or the temperature of the heater 5 rises excessively abnormally. When the contact is separated, the power supply to the heater 5 is cut off, and when the temperature of the hot air drops, the contact comes into contact and the power to the heater 5 is supplied again. In addition, in the circuit diagram of FIG.
By controlling the power supply to the power supply, the operation state is switched from power-off to cold air, low-temperature air, and high-temperature air in this order. That is, switch 1
Numeral 3 designates five connection terminals of a first terminal to a fifth terminal, and the respective sliding terminals 13a shown in FIG. Are connected as shown in the table of FIG.
【００１１】上記ヒータ５と感熱素子１２との間に、送
風量の増減に伴って出入りする遮熱手段１４を配置す
る。この遮熱手段１４は、図１ないし図５に例示するも
のではリン青銅板やステンレス薄板などの金属製の薄い
板ばねを「へ」の字形状に折曲形成した遮熱板１５から
なり、この遮熱板１５は垂直基板１０のヒータ５の風下
側端に近接対向して配置させ、その「へ」の字形の一片
を構成する固定板１５ａの後端部を垂直基板１０にリベ
ット１７などで固着し、「へ」の字形の他片を構成する
自在屈曲板１５ｂを感熱素子１２の風上側に近接配置さ
せている。Between the heater 5 and the heat-sensitive element 12, a heat-shielding means 14 which enters and exits as the amount of air blows increases and decreases. The heat shield means 14 is composed of a heat shield plate 15 formed by bending a thin metal leaf spring such as a phosphor bronze plate or a stainless steel plate in the shape shown in FIG. 1 to FIG. The heat shield plate 15 is disposed so as to be closely opposed to the leeward side end of the heater 5 of the vertical substrate 10, and the rear end of the fixing plate 15 a forming a piece of “H” is attached to the vertical substrate 10 with rivets 17, etc. The flexible plate 15b, which forms the other piece of the "H" shape, is disposed close to the windward side of the thermosensitive element 12.
【００１２】而して、この遮熱板１５は、通常の送風時
の風量では、図１の（Ｂ）に示すように自在屈曲板１５
ｂが風圧を受けることによりヒータ５と感熱素子１２間
にそれ自体がもつ弾性に抗し起立変形してその間を遮っ
て絶縁性を確保し、感熱素子１２がヒータ５からの輻射
熱を受けて誤動作しないようにしている。しかし、何ら
かの原因で送風量が急速に低下する事態が生じると、図
１の（Ａ）に示すように遮熱板１５の自在屈曲板１５ｂ
が受ける風圧も低下し、遮熱板１５は弾性復元力により
自在屈曲板１５ｂの先端が垂直基板１０の切欠端部１０
ａに当接する元の退出姿勢に戻ってヒータ５と感熱素子
１２間を開き通し、感熱素子１２の感熱部がヒータ５か
らの輻射熱を直接受けて本体ケース１内の過昇温を直ち
に感知し、ヒータ５への通電を遮断する。このため、例
えば、アタッチメント４に毛髪を巻過ぎて風量が低下し
た場合でも、熱風によりその毛髪が焦げる前に感熱素子
１２が作用して風温が低下し、その焦げつきを未然に防
止できる。The heat shield plate 15 has a freely bent plate 15 as shown in FIG.
When b receives wind pressure, it rises and deforms between the heater 5 and the thermosensitive element 12 against the elasticity of the heater itself and blocks the space between the heater 5 and the thermosensitive element 12 to secure insulation. The thermosensitive element 12 receives radiant heat from the heater 5 and malfunctions. I try not to. However, when a situation occurs in which the amount of air blows rapidly drops for some reason, as shown in FIG.
The wind pressure applied to the heat shield plate 15 is also reduced, and the heat shield plate 15 is moved by the elastic restoring force so that the free bending plate 15 b has the front end thereof at the notch
Returning to the original withdrawal position abutting on a, the heater 5 and the heat-sensitive element 12 are opened to pass through, and the heat-sensitive portion of the heat-sensitive element 12 directly receives the radiant heat from the heater 5 and immediately detects the excessive temperature rise in the main body case 1. Then, the power supply to the heater 5 is cut off. For this reason, for example, even if the hair volume is reduced by winding the hair over the attachment 4, the heat-sensitive element 12 acts before the hair is burnt by the hot air, and the wind temperature is reduced, so that the burning can be prevented.
【００１３】上記実施例では、遮熱板１５を起こす風量
は、例えば６００Ｗ・１２００Ｗ切換式のヘアーブロッ
サーの場合１２００Ｗを基準にして設定する。すなわち
強風・強温風（１２００Ｗ）の時におけるヒータ温度は
６００Ｗ時に比べて相当高温となり、特にこの使用状態
において風量が著しく低下すると本体ケース１内および
送風温度は異常な高温となってしまう。そのため、１２
００Ｗ時における送風量による風圧作用を受けることに
よって遮熱板１５がそれ自体が持つ弾性に抗してヒータ
５と感熱素子１２間に起き上がってその間を遮断するよ
うに設定する。そして何らかの原因で風量がそれより６
〜８割以上カットされると、遮熱板１５の自在屈曲板１
５ｂが受ける風圧も低下し、遮熱板１５が弾性復帰力に
より感熱素子１２とヒータ５間から退出してその間を開
通し、感熱素子１２がヒータ５からの輻射熱を直接受け
るように設定している。しかし、遮熱板１５を起こした
り、退出させるための風量の設定値は、そのようなもの
に特定されず、温風機の機種や形状、使用ワット数など
に応じて任意に変更する。In the above-described embodiment, the amount of air generated by the heat shield plate 15 is set on the basis of, for example, 1200 W in the case of a 600 W / 1200 W switchable hair-blosser. That is, the heater temperature in the case of strong wind / hot wind (1200 W) becomes considerably higher than that in the case of 600 W. In particular, if the air volume is significantly reduced in this use condition, the temperature inside the main body case 1 and the air blowing temperature become abnormally high. Therefore, 12
The heat shield plate 15 is set up so as to rise between the heater 5 and the heat-sensitive element 12 against the elasticity of the heat-shielding plate 15 and shut off the space between the heater 5 and the heat-sensitive element 12 by receiving the wind pressure effect by the air flow rate at the time of 00 W. And for some reason the air volume is 6
When cut by ~ 80% or more, the flexible plate 1 of the heat shield plate 15
The wind pressure received by 5b is also reduced, the heat shield plate 15 retreats from the heat-sensitive element 12 and the heater 5 by the elastic restoring force and is opened therebetween, and the heat-sensitive element 12 is set so as to directly receive the radiant heat from the heater 5. I have. However, the set value of the air flow for raising or leaving the heat shield plate 15 is not specified as such, and is arbitrarily changed according to the model and shape of the hot air blower, the wattage used, and the like.
【００１４】また、上記実施例では断面十字状のヒータ
基板１１のヒータ５の風下側に近接配置する感熱素子１
２を対象とするが、そのほかに、例えば図７に示すごと
く平板状のヒータ基板１１にジグザグ状に取付けたヒー
タ５の風下側に近接配置される感熱素子１２、あるいは
図８のようにヒータ５の風上側に近接配置した感熱素子
１２などにも同様に適用できる。In the above-described embodiment, the heat-sensitive element 1 is disposed in the vicinity of the heater 5 of the heater substrate 11 having a cross-shaped cross section.
7, a thermosensitive element 12 disposed in the vicinity of a leeward side of a heater 5 attached in a zigzag shape to a flat heater substrate 11 as shown in FIG. 7, or a heater 5 as shown in FIG. The present invention can be similarly applied to the heat-sensitive element 12 arranged close to the windward side.
【００１５】遮熱手段１４としては、ステンレス薄板な
どの金属製のものに代えて、耐熱性を有する合成樹脂製
の薄板で形成された遮熱板を使用してもよく、さらに上
記実施例のように遮熱板１５それ自体がもつばね作用を
利用するに代えて、図９に示すように遮熱板１５をヒー
タ基板１１上に軸１８回りに回動自在に枢着し、退出付
勢用のねじりコイルばね１９、または図１０に示すごと
く引張りばね２０を併用して構成することもできる。ま
た遮熱板１５としては、その遮熱板１５が遮熱姿勢で感
熱素子１２をできる限り覆い囲むように、図１１に示す
ごとく自在屈曲板１５ｂに感熱素子１２の両側を囲む側
片１５ｃをつけた形に形成することもできる。As the heat shielding means 14, a heat shielding plate made of a heat-resistant synthetic resin thin plate may be used instead of a metal plate such as a stainless steel plate. Instead of utilizing the spring action of the heat shield plate 15 itself, as shown in FIG. 9, the heat shield plate 15 is pivotally mounted on the heater substrate 11 so as to be rotatable around an axis 18 and is urged to withdraw. 10 or a tension spring 20 as shown in FIG. In addition, as shown in FIG. 11, the side pieces 15c surrounding both sides of the heat-sensitive element 12 are provided on the freely bent plate 15b so that the heat-shield plate 15 covers the heat-sensitive element 12 as much as possible in the heat-shielding position. It can also be formed in the attached shape.
【００１６】図１２および図１３は本発明の他の実施例
を示す。この実施例では断面十字状のヒータ基板１１の
外周に巻き付けたヒータ５の風下側端で、かつ該ヒータ
５に対峙させて感熱素子１２を近接配置することは図１
および図３に示す実施例の場合と同様であるが、ヒータ
基板１１の中心部付近はヒータ５より離れているためこ
の付近を通る風温はその外周付近のヒータ５に近い箇所
を通る風温に比べて低いことに着目し、通常送風時には
その低温風を利用して感熱素子１２を積極的に冷却する
ための冷却通路２１を形成する。そして、何らかの原因
で風量が低下すると、その冷却通路２１を閉じて低温風
を感熱素子１２に送ることを阻止するよう構成する。具
体的には、感熱素子１２の風上側でヒータ基板１１の中
心部付近に、リン青銅板やステンレス薄板などの金属製
の薄い板ばねを断面Ｌ字形状に折曲形成した偏風板２３
を配設し、通常送風時の風量では、図１２の（Ｂ）のよ
うに偏風板２３が風圧で倒れることによりヒータ基板１
１の中心部付近を通る低温風が感熱素子１２に向けて送
り得る冷却通路２１が形成される。そして、何らかの原
因で送風量が低下する事態が生じると、偏風板２３が受
ける風圧も低下するため、同図の（Ａ）のように偏風板
２３は弾性復元力により元の起立姿勢に戻って冷却通路
２１を閉じて低温風が感熱素子１２に向けて送られない
ようにした。このように送風量が低下した場合は感熱素
子１２が低温風によって冷却されるのを防止されて感熱
素子１２の周辺温度がヒータ５の輻射熱で急速に上昇
し、本体ケース１内の温度が上昇する前に即座に感熱素
子１２が作用してヒータ５への通電を遮断することにな
る。FIGS. 12 and 13 show another embodiment of the present invention. In this embodiment, the heat-sensitive element 12 is disposed close to the leeward end of the heater 5 wound around the outer periphery of the heater substrate 11 having a cross-section in cross section and opposed to the heater 5 as shown in FIG.
3 is the same as that of the embodiment shown in FIG. 3, but the vicinity of the center of the heater substrate 11 is farther from the heater 5, so that the wind temperature passing through the vicinity is near the heater 5 near the outer periphery. Note that the cooling passage 21 for actively cooling the heat-sensitive element 12 is formed by utilizing the low-temperature air during normal air blowing. Then, when the air volume decreases for some reason, the cooling passage 21 is closed to prevent the low-temperature air from being sent to the thermosensitive element 12. More specifically, on the windward side of the thermal element 12 and near the center of the heater substrate 11, a deflected plate 23 formed by bending a thin metal leaf spring such as a phosphor bronze plate or a stainless steel plate into an L-shaped cross section.
When the air volume at the time of the normal air blow is increased, as shown in FIG.
A cooling passage 21 through which a low-temperature wind passing near the center of the first sensor 1 can be sent toward the thermosensitive element 12 is formed. Then, if a situation occurs in which the amount of air blows decreases for some reason, the wind pressure received by the baffle plate 23 also decreases, so that the baffle plate 23 returns to its original standing position due to the elastic restoring force as shown in FIG. Returning, the cooling passage 21 was closed so that the low-temperature air was not sent toward the thermosensitive element 12. When the amount of air blows in this way, the temperature of the heat-sensitive element 12 is prevented from being cooled by the low-temperature air, and the temperature around the heat-sensitive element 12 rapidly rises due to the radiant heat of the heater 5, and the temperature inside the main body case 1 rises. Before the operation, the thermosensitive element 12 acts immediately to cut off the power supply to the heater 5.
【００１７】図１４は本発明の更に他の実施例を示す。
この実施例ではヒータ５に近接配置する感熱素子１２と
送風ファン７との間に断熱性を有するチューブ２４を配
置しして送風ファン７の生起する冷風を感熱素子１２に
導くための冷却通路２１を形成するとともに、チューブ
２４の出口側端にその冷却通路２１を風量の増減に伴っ
て開閉する開閉手段２２を設ける。その開閉手段２２は
軸２５まわりに揺動する開閉板２６と、開閉板２６を常
に閉じ付勢するばね２７とからなって、通常の送風時に
は開閉板２６が風圧を受けてばね２７に抗して開き揺動
し、冷風をチューブ２４内の冷風通路２１に通して感熱
素子１２に積極的に送り、風量が低下すると開閉板２６
が受ける風圧も低下するためばね２７の作用を伴って冷
却通路２１を閉じ、冷風を感熱素子１２に送ることを阻
止するようにしてある。FIG. 14 shows still another embodiment of the present invention.
In this embodiment, a heat-insulating tube 24 is disposed between the heat-sensitive element 12 and the blower fan 7 disposed close to the heater 5, and a cooling passage 21 for guiding the cool air generated by the blower fan 7 to the heat-sensitive element 12. And an opening / closing means 22 for opening and closing the cooling passage 21 in accordance with an increase or decrease in the air flow rate at the outlet end of the tube 24. The opening / closing means 22 includes an opening / closing plate 26 that swings around a shaft 25 and a spring 27 that constantly closes and biases the opening / closing plate 26. To open and oscillate, and cool air is positively sent to the thermosensitive element 12 through the cool air passage 21 in the tube 24, and when the air volume decreases, the open / close plate 26
Since the wind pressure received by the cooling element 21 also decreases, the cooling passage 21 is closed with the action of the spring 27 so as to prevent the cooling air from being sent to the thermosensitive element 12.
【００１８】過昇温防止用の感熱素子１２としては、バ
イメタル式サーモスタットのほかに、正特性サーミス
タ、負特性サーミスタあるいはその他の半導体センサな
どを用いることもできる。温風機としては、ヘアードラ
イヤ以外に、温風式こたつ、温風ヒータ、あるいは温風
乾燥機なども挙げられる。As the thermal element 12 for preventing excessive temperature rise, a positive temperature coefficient thermistor, a negative temperature coefficient thermistor, or other semiconductor sensors can be used in addition to the bimetal type thermostat. Examples of the hot air dryer include a hot air type kotatsu, a hot air heater, and a hot air dryer in addition to the hair dryer.
【００１９】[0019]
【発明の効果】以上説明したように、本発明によれば、
通常送風時には感熱素子１２がヒータ５の輻射熱で誤動
作することなく正しく作動し、しかも過昇温時には感熱
素子１２が即応できて応答性が速くなるため、応答時間
の遅れによる毛髪や機内部品などの焦げや損傷を未然に
防止でき、安全性を高めることができて有利である。As described above, according to the present invention,
During normal air blowing, the thermosensitive element 12 operates correctly without malfunctioning due to the radiant heat of the heater 5, and when the temperature rises excessively, the thermosensitive element 12 can respond quickly and the response speed is increased. Advantageously, scorching and damage can be prevented beforehand and safety can be improved.
【図１】感熱素子の遮熱板の作動状態を示す平面図であ
る。FIG. 1 is a plan view showing an operation state of a heat shield plate of a thermal element.
【図２】ヘアードライヤの一部を切欠した状態で示す全
体の側面図である。FIG. 2 is an overall side view showing a state in which a part of a hair dryer is cut away.
【図３】ヒータ、感熱素子および遮熱板の側面図であ
る。FIG. 3 is a side view of a heater, a thermal element, and a heat shield plate.
【図４】ヒータに感熱素子および遮熱板を組み付けた状
態の斜視図である。FIG. 4 is a perspective view showing a state where a heat-sensitive element and a heat shield plate are assembled to a heater.
【図５】図３におけるＡ−Ａ線断面図である。FIG. 5 is a sectional view taken along line AA in FIG. 3;
【図６】電気回路図である。FIG. 6 is an electric circuit diagram.
【図７】他の実施例を示す感熱素子の配置状態の斜視図
である。FIG. 7 is a perspective view showing a state where a thermal element is arranged according to another embodiment.
【図８】更に他の実施例を示す感熱素子の配置状態の側
面図である。FIG. 8 is a side view of an arrangement state of a heat-sensitive element showing still another embodiment.
【図９】他の実施例を示す感熱素子および遮熱板の側面
図である。FIG. 9 is a side view of a heat-sensitive element and a heat shield plate showing another embodiment.
【図１０】他の実施例を示す感熱素子および遮熱板の側
面図である。FIG. 10 is a side view of a heat-sensitive element and a heat shield plate showing another embodiment.
【図１１】更に他の実施例を示す遮熱板の斜視図であ
る。FIG. 11 is a perspective view of a heat shield plate showing still another embodiment.
【図１２】更に又、他の実施例を示すヒータ、感熱素子
および偏風板の側面図である。FIG. 12 is a side view of a heater, a heat-sensitive element, and a baffle showing still another embodiment.
【図１３】図１２の（Ａ）におけるＢ−Ｂ線断面図であ
る。FIG. 13 is a sectional view taken along line BB in FIG.
【図１４】更に又、他の実施例を示すヒータ、感熱素子
および偏風板の側面図である。FIG. 14 is a side view of a heater, a thermosensitive element, and a baffle showing still another embodiment.
１ 本体ケース ５ ヒータ ７ 送風ファン １２ 感熱素子 １４ 遮熱手段 ２１ 冷却通路 ２２ 開閉手段 DESCRIPTION OF SYMBOLS 1 Main body case 5 Heater 7 Blow fan 12 Thermal element 14 Heat shielding means 21 Cooling passage 22 Opening / closing means
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭63−230104（ＪＰ，Ａ) 特開 昭53−21656（ＪＰ，Ａ) 実開 昭58−71307（ＪＰ，Ｕ) 特公 昭55−28684（ＪＰ，Ｂ２) 特公 昭57−30485（ＪＰ，Ｂ２) 特公 昭55−2284（ＪＰ，Ｂ２) 実公 昭58−45603（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.7，ＤＢ名) A45D 20/00 - 20/12 A47K 10/48 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-230104 (JP, A) JP-A-53-21656 (JP, A) Jikai 58-71307 (JP, U) 28684 (JP, B2) JP-B-57-30485 (JP, B2) JP-B-55-2284 (JP, B2) JP-B-58-45603 (JP, Y2) (58) Fields surveyed (Int. Cl. 7 , DB name) A45D 20/00-20/12 A47K 10/48
Claims (2)
５が備えられ、かつヒータ５への通電を制御する過昇温
防止用の感熱素子１２が備えられた温風機において、 感熱素子１２とヒータ５とを互いに向き合わせて近接配
置し、この感熱素子１２とヒータ５との間に、風量の増
減に伴って感熱素子１２とヒータ５間を遮る遮熱姿勢と
感熱素子１２とヒータ５間から退いてその間を開通する
退出姿勢とにわたって出入りする遮熱手段１４を配して
あることを特徴とする温風機。1. A warm air blower having a blower fan 7 and a heater 5 in a main body case 1 and a heat-sensitive element 12 for preventing overheating which controls the energization of the heater 5; The heaters 5 are arranged close to each other so as to face each other, and a heat-shielding posture between the heat-sensitive elements 12 and the heaters 5 between the heat-sensitive elements 12 and the heaters 5 according to an increase and decrease in the air flow rate. A warm air blower, comprising a heat shield means 14 for entering and exiting from a retreating posture of retreating from and opening between the two.
５が備えられ、かつヒータ５への通電を制御する過昇温
防止用の感熱素子１２が備えられた温風機において、 感熱素子１２とヒータ５とを互いに向き合わせて近接配
置し、この感熱素子１２と送風ファン７との間に冷風な
いし低温風を感熱素子１２に導く冷却通路２１を形成す
るとともに、風量の増減に伴って前記冷却通路２１を開
閉する開閉手段２２を設けてあることを特徴とする温風
機。2. A hot air blower in which a blower fan 7 and a heater 5 are provided in a main body case 1 and a heat-sensitive element 12 for preventing overheating of the heater 5 is provided. The heater 5 and the heater 5 are arranged in close proximity to each other, and a cooling passage 21 for guiding cool air or low-temperature air to the heat-sensitive element 12 is formed between the heat-sensitive element 12 and the blower fan 7. A warm air blower comprising an opening / closing means 22 for opening / closing a passage 21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04259129A JP3120194B2 (en) | 1992-09-01 | 1992-09-01 | Hot air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04259129A JP3120194B2 (en) | 1992-09-01 | 1992-09-01 | Hot air blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0678826A JPH0678826A (en) | 1994-03-22 |
| JP3120194B2 true JP3120194B2 (en) | 2000-12-25 |
Family
ID=17329723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04259129A Expired - Fee Related JP3120194B2 (en) | 1992-09-01 | 1992-09-01 | Hot air blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3120194B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101949161B1 (en) * | 2016-12-28 | 2019-02-18 | 한국복지대학교 산학협력단 | Jewelry having replacable braille |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2543538B (en) | 2015-10-21 | 2018-05-09 | Dyson Technology Ltd | A haircare appliance |
| GB2543536B (en) | 2015-10-21 | 2019-01-02 | Dyson Technology Ltd | A handheld appliance |
| GB2543537B (en) | 2015-10-21 | 2018-09-19 | Dyson Technology Ltd | A handheld appliance |
| JP2023183899A (en) * | 2022-06-17 | 2023-12-28 | パナソニックＩｐマネジメント株式会社 | Clothing treatment device |
-
1992
- 1992-09-01 JP JP04259129A patent/JP3120194B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101949161B1 (en) * | 2016-12-28 | 2019-02-18 | 한국복지대학교 산학협력단 | Jewelry having replacable braille |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0678826A (en) | 1994-03-22 |
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