JP7149223B2

JP7149223B2 - small electrical equipment

Info

Publication number: JP7149223B2
Application number: JP2019078715A
Authority: JP
Inventors: 久雄中島; 武則岡村
Original assignee: Maxell Ltd
Current assignee: Maxell Ltd
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2022-10-06
Anticipated expiration: 2038-12-18
Also published as: JP2020096780A

Description

本発明は、本体ケースの内部にヒートシンクが設けてある小型電気機器に関する。本発明の小型電気機器の具体例としては、例えば、肌面に対して温度刺激、電流刺激、振動刺激などの美容刺激を与えてスキンケアを行う美容器具を挙げることができる。 TECHNICAL FIELD The present invention relates to a small electric device having a heat sink inside a main body case. As a specific example of the small electric device of the present invention, for example, there can be mentioned a beauty device for performing skin care by applying beauty stimuli such as temperature stimuli, current stimuli, and vibration stimuli to the skin surface.

本出願人は、この種の美容器具を先に提案している（特許文献１）。特許文献１の美容器具では、本体ケースの上半部にヘッド支持部が設けられ、ヘッド支持部の前部および後部に肌刺激体と肌ヘッドが設けられている。肌刺激体の内部にはヒーターとバイブレーターが設けられており、肌ヘッドの内部にはペルチェ素子とヒートシンクが設けられている。本体ケースの内部には電池と制御基板が設けられており、制御基板に設けた複数のスイッチをスイッチボタンで切換えることにより、美容器具の運転モードを変更することができる。肌刺激体は温熱刺激と電流刺激と振動刺激を肌面に付与することができ、肌ヘッドは冷熱刺激を肌面に付与することができる。市販の美容器具においては、２次電池を電源にして上記の各機器を駆動しており、その場合には充電電流や充電電圧を制御する充電制御ＩＣが本体ケースの内部の制御基板に実装されている。 The present applicant has previously proposed this type of beauty instrument (Patent Document 1). In the beauty tool disclosed in Patent Document 1, a head supporting portion is provided in the upper half of the main body case, and a skin stimulator and a skin head are provided in the front and rear portions of the head supporting portion. A heater and a vibrator are provided inside the skin stimulator, and a Peltier element and a heat sink are provided inside the skin head. A battery and a control board are provided inside the main body case, and the operating mode of the beauty instrument can be changed by switching a plurality of switches provided on the control board with a switch button. The skin stimulator can apply thermal stimulation, current stimulation, and vibration stimulation to the skin surface, and the skin head can apply cold heat stimulation to the skin surface. In a commercially available beauty appliance, a secondary battery is used as a power source to drive each of the devices described above. ing.

特開２０１８－１４３６１４号公報JP 2018-143614 A

本発明の目的は、組立に要する手間とコストを軽減できる小型電気機器を提供することにある。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a small electrical device that can reduce the labor and cost required for assembly.

本発明に係る小型電気機器は、本体ケース１のヘッド部２に、熱電変換素子８と、熱電変換素子８の前面に接合される刺激付与体３と、熱電変換素子８の後面に接合されるヒートシンク９とを備えた肌刺激構造が配置されている。本体ケース１は、前後に分割された前ケース１ａと後ケース１ｂを接合して中空ケース状に構成されている。本体ケース１のヘッド部２の前ケース１ａにはシンク開口１３が開口されて、シンク開口１３の外面に刺激付与体３が配置され、シンク開口１３の内面にヒートシンク９が配置されている。後ケース１ｂは前ケース１ａに接合された状態で、後ケース１ｂの後面側から刺激付与体３にねじ込んだ締結具７２で締結固定されて、刺激付与体３と熱電変換素子８、およびヒートシンク９が前ケース１ａおよび後ケース１ｂと一体化されている。一体化された状態における熱電変換素子８とヒートシンク９が、刺激付与体３と後ケース１ｂで挟持固定されている。さらに、前ケース１ａがヒートシンク９および後ケース１ｂと刺激付与体３で挟持固定されている。刺激付与体３が前ケース１ａに対してパッキン３９を介して接合されていることを特徴とする。 The small electric device according to the present invention includes a head portion 2 of a main body case 1, a thermoelectric conversion element 8, a stimulus applying body 3 joined to the front surface of the thermoelectric conversion element 8, and a rear surface of the thermoelectric conversion element 8. A skin stimulation structure with a heat sink 9 is arranged. The body case 1 is formed in a hollow case shape by joining a front case 1a and a rear case 1b which are divided into front and rear. A sink opening 13 is opened in the front case 1 a of the head portion 2 of the body case 1 , the stimulation imparting body 3 is arranged on the outer surface of the sink opening 13 , and the heat sink 9 is arranged on the inner surface of the sink opening 13 . While the rear case 1b is joined to the front case 1a, it is fastened and fixed by a fastener 72 screwed into the stimulation imparting body 3 from the rear surface side of the rear case 1b, and the stimulation imparting body 3, the thermoelectric conversion element 8, and the heat sink 9. are integrated with the front case 1a and the rear case 1b. The thermoelectric conversion element 8 and the heat sink 9 in an integrated state are clamped and fixed between the stimulation applying body 3 and the rear case 1b. Furthermore, the front case 1a is clamped and fixed by the heat sink 9, the rear case 1b, and the stimulation applying body 3. As shown in FIG. It is characterized in that the stimulation applying body 3 is joined to the front case 1a via a packing 39.

刺激付与体３に締結具７２用のねじボス３７が設けられ、後ケース１ｂにねじボス３７に連結される締結ボス１８が設けられている。ヒートシンク９に前後貫通状の筒ボス４８が形成されている。締結ボス１８およびねじボス３７は、筒ボス４８の内部で係合連結されて、ねじボス３７に挿通した締結具７２を締結ボス１８にねじ込むことにより固定されていることを特徴とする。 A screw boss 37 for a fastener 72 is provided on the stimulator 3, and a fastening boss 18 connected to the screw boss 37 is provided on the rear case 1b. A cylindrical boss 48 is formed in the heat sink 9 so as to penetrate therethrough. The fastening boss 18 and the threaded boss 37 are engaged and connected inside the cylindrical boss 48 , and are fixed by screwing a fastener 72 inserted through the threaded boss 37 into the fastening boss 18 .

シンク開口１３の周囲壁の外面および内面に、刺激付与体３およびヒートシンク９がそれぞれ接合されて、刺激付与体３およびヒートシンク９がシンク開口１３の周囲壁を内外に挟持している。シンク開口１３の周囲壁の内面と、同壁と対向するヒートシンク９に、互いに係合して、ヒートシンク９を前ケース１ａに対して位置決めする位置決め凹部５０と位置決めリブ５１が設けられている。刺激付与体３およびヒートシンク９に作用する締結具７２の締結力を、シンク開口１３の周囲壁で受止めていることを特徴とする。 The stimulator 3 and the heat sink 9 are bonded to the outer and inner surfaces of the peripheral wall of the sink opening 13, respectively, so that the stimulator 3 and the heat sink 9 sandwich the peripheral wall of the sink opening 13 inside and outside. A positioning recess 50 and a positioning rib 51 are provided on the inner surface of the peripheral wall of the sink opening 13 and the heat sink 9 facing the same wall to engage with each other to position the heat sink 9 with respect to the front case 1a. It is characterized in that the fastening force of the fastener 72 acting on the stimulus applying body 3 and the heat sink 9 is received by the surrounding wall of the sink opening 13 .

本体ケース１のヘッド部２に、熱電変換素子８と、熱電変換素子８の前面に接合される刺激付与体３と、熱電変換素子８の後面に接合されるヒートシンク９を備えた肌刺激構造が配置されている。本体ケース１のヘッド部２の後面に後側の刺激付与体４が配置されて、後側の刺激付与体４の内面に、ヒートシンク９の熱を後側の刺激付与体４に伝導する伝熱体１０が設けられている。刺激付与体４の内面に、振動を生起するバイブレーター１９が配置されていることを特徴とする。 The head portion 2 of the main body case 1 has a skin stimulating structure including a thermoelectric conversion element 8, a stimulation applying body 3 joined to the front surface of the thermoelectric conversion element 8, and a heat sink 9 joined to the rear surface of the thermoelectric conversion element 8. are placed. The rear stimulation body 4 is arranged on the rear surface of the head part 2 of the main body case 1, and the heat of the heat sink 9 is transferred to the rear stimulation body 4 on the inner surface of the rear stimulation body 4. A body 10 is provided. A vibrator 19 for generating vibration is arranged on the inner surface of the stimulation applying body 4 .

伝熱体１０は、後側の刺激付与体４の内面に密着する部分球殻状の本体部１０ａと、本体部１０ａの内面に突設されて、ヒートシンク９の熱を本体部１０ａへ伝導する複数の受熱軸１０ｂを一体に備えている。バイブレーター１９が、後側の刺激付与体４の内面に設けたホルダー枠２０に装着されて、バイブレーター１９およびホルダー枠２０が、本体部１０ａの中央に形成した逃げ開口６９を介して伝熱体１０の内面側に位置されていることを特徴する。 The heat transfer body 10 has a partially spherical shell-shaped main body part 10a that is in close contact with the inner surface of the stimulation applying body 4 on the rear side, and is protruded from the inner surface of the main body part 10a to conduct the heat of the heat sink 9 to the main body part 10a. A plurality of heat receiving shafts 10b are integrally provided. The vibrator 19 is attached to the holder frame 20 provided on the inner surface of the stimulation applying body 4 on the rear side, and the vibrator 19 and the holder frame 20 pass through the escape opening 69 formed in the center of the main body 10a. characterized by being located on the inner surface side of the

本発明の小型電気機器によれば、刺激付与体３、熱電変換素子８、およびヒートシンク９を前ケース１ａに仮組みし、さらに後ケース１ｂを前ケース１ａに接合した状態で、後ケース１ｂの後面側から刺激付与体３に締結具７２をねじ込むことで、肌刺激構造を前後ケース１ａ・１ｂと一体化できる。つまり、刺激付与体３、熱電変換素子８、ヒートシンク９と前後ケース１ａ・１ｂの５者を、１個の締結具７２のみで一体化し固定できるので、刺激付与体３、熱電変換素子８、ヒートシンク９を、例えば前ケース１ａに順に締結固定する必要がなく、しかも締結具７２の使用個数を最小限化して、その分だけ組立に要する手間とコストを軽減できる。さらに、刺激付与体３を前ケース１ａに対してパッキン３９を介して接合するので、化粧液を併用して刺激付与体３でスキンケアを行う場合に、化粧液がヘッド部２の内部に浸入するのを確実に防止でき、化粧液の侵入を原因とする電気的故障を解消できる。なお、シンク基部４７の後面の複数個所に締結構造が設けてある場合でも、個々の締結構造を１個の締結具７２のみで一体化し固定できる。 According to the small electrical device of the present invention, the stimulator 3, the thermoelectric conversion element 8, and the heat sink 9 are temporarily assembled to the front case 1a, and the rear case 1b is attached to the front case 1a. The skin stimulating structure can be integrated with the front and rear cases 1a and 1b by screwing the fastener 72 into the stimulating body 3 from the rear side. In other words, the stimulator 3, the thermoelectric conversion element 8, the heat sink 9, and the front and rear cases 1a and 1b can be integrated and fixed with only one fastener 72, so that the stimulator 3, the thermoelectric conversion element 8, and the heat sink 9, for example, to the front case 1a in sequence, and the number of fasteners 72 to be used can be minimized, thereby reducing labor and cost required for assembly. Furthermore, since the stimulus applying body 3 is joined to the front case 1a via the packing 39, the cosmetic liquid enters the inside of the head portion 2 when skin care is performed using the stimulating body 3 in combination with the cosmetic liquid. can be reliably prevented, and the electrical failure caused by the intrusion of cosmetic liquid can be eliminated. Even when fastening structures are provided at a plurality of locations on the rear surface of the sink base 47, the individual fastening structures can be integrated and fixed with only one fastener 72. FIG.

また、締結ボス１８およびねじボス３７を筒ボス４８の内部で接合し、両ボス１８・３７を締結具７２で一体化すると、締結ボス１８およびねじボス３７、あるいはいずれか一方のボスで筒ボス４８を支持することにより、ヒートシンク９を刺激付与体３および後ケース１ｂに対して正確に位置決めし、さらにヒートシンク９が刺激付与体３および後ケース１ｂに対して遊動するのを阻止できる。従って、刺激付与体３、熱電変換素子８、ヒートシンク９と前後ケース１ａ・１ｂの５者を、１個の締結具７２のみで一体化できるにも拘らず、ヒートシンク９を刺激付与体３および後ケース１ｂに対して、常に適正に組立てることができる。シンク基部４７の後面の複数個所に締結構造が設けてある場合でも、個々の締結構造を１個の締結具７２のみで一体化し固定しながら、ヒートシンク９を刺激付与体３および後ケース１ｂに対して、常に適正に組立てることができる。 Further, when the fastening boss 18 and the screw boss 37 are joined inside the cylindrical boss 48 and the two bosses 18 and 37 are integrated with the fastener 72, the fastening boss 18 and the screw boss 37 or either one of the bosses can be connected to the cylindrical boss. By supporting 48, the heat sink 9 can be accurately positioned with respect to the stimulator 3 and the rear case 1b, and the heat sink 9 can be prevented from moving relative to the stimulator 3 and the rear case 1b. Therefore, although the stimulation applying body 3, the thermoelectric conversion element 8, the heat sink 9, and the front and rear cases 1a and 1b can be integrated with only one fastener 72, the heat sink 9 can be integrated with the stimulation applying body 3 and the rear case 1a, 1b. It can always be properly assembled with respect to the case 1b. Even when fastening structures are provided at a plurality of locations on the rear surface of the sink base 47, the individual fastening structures are integrated and fixed with only one fastener 72, and the heat sink 9 is attached to the stimulator 3 and the rear case 1b. can always be properly assembled.

また、刺激付与体３およびヒートシンク９に作用する締結具７２の締結力を、シンク開口１３の周囲壁で受止めるようにすると、刺激付与体３とヒートシンク９の間に配置した熱電変換素子８を常に適正な挟持力で挟持固定して、仕様通りの熱特性を発揮させることができる。因みに、刺激付与体３およびヒートシンク９の締結力が、熱電変換素子８の前後面に直接作用する場合には、刺激付与体３に過剰な挟持力が作用して、熱特性が変化するなどの故障を発生し、あるいは破損するおそれがある。また、位置決め凹部５０と位置決めリブ５１を互いに係合させることにより、ヒートシンク９を前ケース１ａに対して位置決めした状態で常に適正に組むことができる。 In addition, when the fastening force of the fastener 72 acting on the stimulator 3 and the heat sink 9 is received by the surrounding wall of the sink opening 13, the thermoelectric conversion element 8 arranged between the stimulator 3 and the heat sink 9 is It is possible to always clamp and fix with an appropriate clamping force, and to exhibit the thermal characteristics as specified. Incidentally, when the fastening force between the stimulus imparting body 3 and the heat sink 9 directly acts on the front and rear surfaces of the thermoelectric conversion element 8, an excessive clamping force acts on the stimulus imparting body 3, resulting in a change in thermal characteristics. Failure or damage may occur. Further, by engaging the positioning recesses 50 and the positioning ribs 51 with each other, the heat sink 9 can always be properly assembled while being positioned with respect to the front case 1a.

また、本体ケース１のヘッド部２の後面に、後側の刺激付与体４を設けるようにした美容器具によれば、熱電変換素子８からヒートシンク９に伝導された冷熱または温熱を、伝熱体１０で後側の刺激付与体４に伝導して、後側の刺激付与体４によって肌面に熱刺激を付与しながらスキンケアを行うことができる。また、刺激付与体４の内面に配置したバイブレーター１９を作動させてスキンケアを行うことにより、振動刺激と熱刺激を同時に付与して、後側の刺激付与体４によるスキンケアをさらに効果的に行うことができる。 In addition, according to the beauty tool in which the stimulating body 4 on the rear side is provided on the rear surface of the head portion 2 of the main body case 1, cold or hot heat conducted from the thermoelectric conversion element 8 to the heat sink 9 is transferred to the heat transfer body. At 10, it is conducted to the stimulus imparting body 4 on the back side, and skin care can be performed while the stimulus imparting body 4 on the back side imparts a thermal stimulus to the skin surface. In addition, by operating the vibrator 19 arranged on the inner surface of the stimulation applying body 4 to perform skin care, the vibration stimulation and the thermal stimulation are applied simultaneously, and the skin care by the stimulation applying body 4 on the rear side can be performed more effectively. can be done.

また、本体部１０ａと複数の受熱軸１０ｂで伝熱体１０を構成し、ヒートシンク９の熱を受熱軸１０ｂで本体部１０ａへ伝導し、さらに本体部１０ａの熱を後側の刺激付与体４に伝導するようにすると、ヒートシンク９の冷熱または温熱を部分球殻状の本体部１０ａで後側の刺激付与体４にむらなく伝導でき、同時に後側の刺激付与体４の中央付近に配置したバイブレーター１９で、刺激付与体４の全体をむらなく振動させながら、肌接触面６１によるスキンケアをさらに効果的に行うことができる。また、バイブレーター１９およびホルダー枠２０が、本体部１０ａの中央に形成した逃げ開口６９を介して伝熱体１０の内面側に位置されているので、伝熱体１０がバイブレーター１９およびホルダー枠２０と直接接触してがたつき、騒音源になるのを防止できる。 The main body 10a and a plurality of heat-receiving shafts 10b form a heat transfer body 10, the heat of the heat sink 9 is conducted to the main body 10a by the heat-receiving shafts 10b, and the heat of the main body 10a is transferred to the stimulation applying body 4 on the rear side. , the cold or hot heat of the heat sink 9 can be evenly conducted to the stimulus applying body 4 on the rear side through the main body part 10a having a partially spherical shell shape, and at the same time, it is arranged near the center of the stimulating body 4 on the rear side. With the vibrator 19, the skin contact surface 61 can more effectively perform skin care while vibrating the entire stimulation applying body 4 evenly. In addition, since the vibrator 19 and the holder frame 20 are positioned on the inner surface side of the heat transfer body 10 via the escape opening 69 formed in the center of the main body portion 10a, the heat transfer body 10 is positioned between the vibrator 19 and the holder frame 20. It can be prevented from becoming a source of noise due to rattling caused by direct contact.

本発明の実施例１に係る小型電気機器のヘッド部の縦断側面図である。1 is a longitudinal side view of a head portion of a small electrical device according to Example 1 of the present invention; FIG. 実施例１に係る小型電気機器の側面図である。1 is a side view of a small electrical device according to Example 1. FIG. 実施例１に係る小型電気機器の分解断面図である。1 is an exploded cross-sectional view of a small electrical device according to Example 1. FIG. 図１におけるＡ－Ａ線断面図である。FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1; 実施例１に係る小型電気機器のグリップ部分の縦断側面図である。2 is a longitudinal side view of a grip portion of the small electrical device according to Example 1. FIG. 電池充電ＩＣと受熱部の接合構造を示す要部の正面図である。FIG. 4 is a front view of a main part showing a joint structure between a battery charging IC and a heat receiving part; 図６におけるＢ－Ｂ線断面図である。FIG. 7 is a cross-sectional view taken along the line BB in FIG. 6; 本発明の実施例２に係る小型電気機器における、電池充電ＩＣと受熱部の接合構造を示す縦断側面図である。FIG. 10 is a vertical cross-sectional view showing a joining structure between a battery charging IC and a heat receiving portion in a small electrical device according to Example 2 of the present invention; 本発明の実施例３に係る小型電気機器における、電池充電ＩＣと受熱部の接合構造を示す正面図である。FIG. 11 is a front view showing a joint structure between a battery charging IC and a heat receiving portion in a small electrical device according to Example 3 of the present invention; 図９におけるＣ－Ｃ線断面図である。FIG. 10 is a sectional view along line CC in FIG. 9; 本発明の実施例４に係る小型電気機器における、電池充電ＩＣと受熱部の接合構造を示す正面図である。FIG. 11 is a front view showing a joint structure between a battery charging IC and a heat receiving portion in a small electrical device according to Example 4 of the present invention; 図１１におけるＤ－Ｄ線断面図である。FIG. 12 is a sectional view taken along line DD in FIG. 11; 本発明の実施例５に係る小型電気機器における、電池充電ＩＣと受熱部の接合構造を示す正面図である。FIG. 11 is a front view showing a joint structure between a battery charging IC and a heat receiving portion in a small electrical device according to Example 5 of the present invention; 本発明の実施例６に係る小型電気機器における、電池充電ＩＣと受熱部の接合構造を示す正面図である。FIG. 11 is a front view showing a joint structure between a battery charging IC and a heat receiving portion in a small electrical device according to Example 6 of the present invention; 図１４におけるＥ－Ｅ線断面図である。FIG. 15 is a cross-sectional view taken along line EE in FIG. 14;

（実施例１）図１から図７に、本発明に係る小型電気機器を美容器具に適用した実施例１を示す。本発明における前後、左右、上下とは、図１、図２、および図４に示す交差矢印と、矢印の近傍の前後、左右、上下の表記に従う。図２において美容器具は、グリップを兼ねる本体ケース１と、本体ケース１の上側のヘッド部２を備えており、ヘッド部２の前後に、スキンケア用の前熱刺激体（刺激付与体）３と後熱刺激体（刺激付与体）４とが設けられている。本体ケース１の内部には電源用の２次電池５と縦長四角形状の制御基板６が配置されており、２次電池５の下方のケース端に給電ソケット（電力供給部）７が設けられている。ヘッド部２の内部には、前熱刺激体３に冷熱または温熱を送給する熱電変換素子（ペルチェ素子）８と、熱電変換素子８の温熱を放出するヒートシンク９とが配置されている。後熱刺激体４の前面（内面）には、ヒートシンク９の熱を後熱刺激体４に伝導する伝熱体１０が配置されている。図２において符号１１は、２次電池５の充電時に給電ソケット７に接続される給電プラグであり、充電用アダプターの直流電流を供給する。 (Embodiment 1) FIGS. 1 to 7 show Embodiment 1 in which the small electric device according to the present invention is applied to a beauty tool. Front and rear, left and right, and up and down in the present invention follow the notation of crossed arrows shown in FIGS. In FIG. 2, the beauty tool includes a body case 1 that also serves as a grip, and a head section 2 on the upper side of the body case 1. Before and after the head section 2, a pre-thermal stimulator (stimulator) 3 for skin care is provided. A post-thermal stimulator (stimulator) 4 is provided. A secondary battery 5 for power supply and a vertically rectangular control board 6 are arranged inside the body case 1 , and a power supply socket (power supply unit) 7 is provided at the end of the case below the secondary battery 5 . there is Inside the head part 2, a thermoelectric conversion element (Peltier element) 8 for supplying cold or hot heat to the pre-thermal stimulator 3 and a heat sink 9 for releasing the heat of the thermoelectric conversion element 8 are arranged. A heat conductor 10 that conducts the heat of the heat sink 9 to the post-thermal stimulator 4 is arranged on the front surface (inner surface) of the post-thermal stimulator 4 . In FIG. 2, reference numeral 11 denotes a power supply plug that is connected to the power supply socket 7 when charging the secondary battery 5, and supplies direct current from the charging adapter.

本体ケース１は、前後に分割された前ケース１ａと後ケース１ｂとを接合して中空ケース状に構成されている。前ケース１ａのヘッド部２の側の前面中央には、ヒートシンク９用の円形のシンク開口１３が開口され、シンク開口１３の周囲壁に設けた円形の前装着座１４に前熱刺激体３が装着固定されている。前ケース１ａの左右両側には、外部空気の出入りを許す一群の通気スリット３０が形成されている。後ケース１ｂのヘッド部２の側の後面中央に後熱刺激体４用の円形の後開口１５が開口され、後開口１５の周囲壁に設けられた円形の後装着座１６に後熱刺激体４が装着固定されている。後開口１５の内面（前面）には、垂直の内壁１７が後ケース１ｂと一体に設けられており、内壁１７の前面中央に筒軸状の締結ボス１８が一体に設けられている。後熱刺激体４の内面には、バイブレーター１９を支持するホルダー枠２０が一体に設けられている。後ケース１ｂの後面下部には、前熱刺激体３と協同して肌面に電流刺激を付与するためのグリップ電極２１が設けられている。 The body case 1 is formed in a hollow case shape by joining a front case 1a and a rear case 1b which are divided into front and rear. A circular sink opening 13 for the heat sink 9 is opened in the center of the front surface of the front case 1a on the side of the head part 2, and the front heat stimulator 3 is mounted on a circular front mounting seat 14 provided on the peripheral wall of the sink opening 13. Mounted and fixed. A group of ventilating slits 30 are formed on both left and right sides of the front case 1a to allow the entry and exit of outside air. A circular rear opening 15 for the post-thermal stimulator 4 is opened in the center of the rear surface of the rear case 1b on the side of the head part 2, and a circular rear mounting seat 16 provided on the peripheral wall of the rear opening 15 accommodates the post-thermal stimulator. 4 is mounted and fixed. A vertical inner wall 17 is provided integrally with the rear case 1b on the inner surface (front surface) of the rear opening 15, and a cylindrical fastening boss 18 is integrally provided at the center of the front surface of the inner wall 17. As shown in FIG. A holder frame 20 for supporting the vibrator 19 is integrally provided on the inner surface of the post-thermal stimulator 4 . A grip electrode 21 for applying current stimulation to the skin surface in cooperation with the front thermal stimulator 3 is provided on the lower rear surface of the rear case 1b.

図５において、制御基板６の下半部には、電源スイッチ２３と、イオン導入／導出スイッチ２４と、バイブレーター１９用のスイッチ２５と、運転モードを切換える切換えスイッチ２６とが実装されており、各スイッチ２３～２６に対応して本体ケース１の前面に設けたスイッチボタン２３ａ～２６ａをオン・オフ操作することにより、美容器具の作動状態を種々に切換えることができる。制御基板６には上記のスイッチ以外に、刺激レベルを調整するスイッチを設けることができる。電源スイッチ２３の上方の制御基板６には、美容器具の各モード切換え状態に対応して点灯する３個のＬＥＤ２７が実装されており、各ＬＥＤ２７の発光を本体ケース１に設けた導光体２７ａで表示することで、ユーザーに現在の運転モードを視認させることができる。 In FIG. 5, the lower half of the control board 6 is mounted with a power switch 23, an ion introduction/derivation switch 24, a switch 25 for the vibrator 19, and a changeover switch 26 for switching operation modes. By turning on/off switch buttons 23a to 26a provided on the front surface of the main body case 1 corresponding to the switches 23 to 26, the operation state of the beauty instrument can be changed variously. In addition to the switches described above, the control board 6 may be provided with switches for adjusting the stimulation level. On the control board 6 above the power switch 23, there are mounted three LEDs 27 that light up corresponding to each mode switching state of the beauty device. By displaying with , the user can visually recognize the current driving mode.

制御基板６の後面には、２次電池５を支持する電極端子２８が固定されており、制御基板６の後面の最下部には、給電ソケット７から導出したリード線が固定されている。また、制御基板６の上部には矩形状の充電用実装領域Ｒ（図６参照）が設けられており、同領域Ｒの後面に２次電池５に充電電流を供給する充電回路３２が実装されている。充電回路３２は、充電時に充電回路３２から出力される充電電流および充電電圧を制御する電池充電ＩＣ３３を含んで構成してあり、電池充電ＩＣ３３は制御基板６に半田付けされている。制御基板６はその４個所に挿通したビス２９（図５参照）で前ケース１ａに固定されている。 Electrode terminals 28 that support the secondary battery 5 are fixed to the rear surface of the control board 6 , and lead wires led out from the power supply socket 7 are fixed to the lowest part of the rear surface of the control board 6 . A rectangular charging mounting area R (see FIG. 6) is provided on the upper portion of the control board 6, and a charging circuit 32 for supplying a charging current to the secondary battery 5 is mounted on the rear surface of the area R. ing. The charging circuit 32 includes a battery charging IC 33 that controls charging current and charging voltage output from the charging circuit 32 during charging. The battery charging IC 33 is soldered to the control board 6 . The control board 6 is fixed to the front case 1a with screws 29 (see FIG. 5) inserted at four locations.

前熱刺激体３はアルミニウム合金などの金属製のダイキャスト成形品からなり、鏡面処理された部分球面状の肌接触面３５を有し、その内面に熱電変換素子８用の平坦な素子接合座３６が形成され、素子接合座３６の中央部分にねじボス３７が後ろ向きに突設されている。前熱刺激体３の周縁にはリング状の接合座３８が後向きに突設されており、この接合座３８とパッキン３９とを前装着座１４に接合することで、前熱刺激体３は前ケース１ａと一体化されている。熱電変換素子８は円形リング状に形成されており、その前後面が先の素子接合座３６と、ヒートシンク９の前端の平坦な素子接合座４６に対して、シリコン樹脂製の伝熱シート４０を介して密着接合されている。伝熱シート４０は、熱電変換素子８から各素子接合座３６・４６への熱伝導を促進するために設けられている。 The pre-thermal stimulator 3 is made of a die-cast metal such as an aluminum alloy, and has a mirror-finished, partially spherical skin contact surface 35, on the inner surface of which is a flat element bonding seat for the thermoelectric conversion element 8. 36 is formed, and a screw boss 37 protrudes rearward from the central portion of the element connection seat 36 . A ring-shaped joint seat 38 is provided to protrude rearward from the periphery of the front thermal stimulator 3. By joining the joint seat 38 and packing 39 to the front mounting seat 14, the front thermal stimulator 3 moves forward. It is integrated with the case 1a. The thermoelectric conversion element 8 is formed in a circular ring shape, and a heat transfer sheet 40 made of silicone resin is attached to the element bonding seat 36 at the front and rear surfaces thereof and the flat element bonding seat 46 at the front end of the heat sink 9 . It is closely joined through. The heat transfer sheet 40 is provided to promote heat conduction from the thermoelectric conversion element 8 to each element joining seat 36,46.

ヒートシンク９は、アルミニウム合金などの金属製のダイキャスト成形品からなり、後面に一群の放熱フィン４３が形成された円形の放熱部４４と、放熱部４４から制御基板６に向かって延出される矩形状の受熱部４５とを備えている。放熱部４４の前面には、素子接合座４６を備えた円形のシンク基部４７が設けられており、シンク基部４７の後面中央に前後面が開口する筒ボス４８が設けられ、筒ボス４８の上下に一対の伝熱ボス４９が設けられている。また、シンク基部４７の基端周囲の平坦壁と、同壁と正対する前装着座１４の内面には、互いに係合してヒートシンク９を位置決めするＶ字状の位置決め凹部５０と、Ｖ字状の位置決めリブ５１とがリング状に形成されている。なお、放熱部４４を構成する放熱フィン４３は省略してもよい。なお、締結ボス１８、ねじボス３７、および筒ボス４８とビス７２は、シンク基部４７の後面中央の１個所に設けたが、シンク基部４７の後面の複数個所に設けることができる。その場合には、前熱刺激体３がヒートシンク９に対して回転変位し、あるいはずれ動くのを確実に防止できる。 The heat sink 9 is made of die-cast metal such as an aluminum alloy, and has a circular heat radiation portion 44 having a group of heat radiation fins 43 formed on its rear surface, and a rectangular shape extending from the heat radiation portion 44 toward the control board 6 . A shaped heat receiving portion 45 is provided. A circular sink base portion 47 having an element bonding seat 46 is provided on the front surface of the heat radiating portion 44. A cylindrical boss 48 having an open front and rear surface is provided at the center of the rear surface of the sink base portion 47. A pair of heat transfer bosses 49 are provided on the . Further, on the flat wall around the base end of the sink base portion 47 and the inner surface of the front mounting seat 14 facing the same wall, a V-shaped positioning recess 50 that engages with each other to position the heat sink 9 and a V-shaped A positioning rib 51 is formed in a ring shape. Note that the heat radiation fins 43 constituting the heat radiation portion 44 may be omitted. Although the fastening boss 18, the screw boss 37, and the cylindrical boss 48 and the screw 72 are provided at one location in the center of the rear surface of the sink base 47, they can be provided at a plurality of locations on the rear surface of the sink base 47. In that case, it is possible to reliably prevent the pre-thermal stimulator 3 from being rotationally displaced or shifted with respect to the heat sink 9 .

２次電池５を充電するとき、電池充電ＩＣ３３は発熱し、１００℃前後にまで温度が上がる。そのため、２次電池５が繰返し充電されると、電池充電ＩＣ３３の機能劣化が進んで、電池充電ＩＣ３３の寿命が短くなるおそれがある。こうした不具合を解消するために、本実施例では、電池充電ＩＣ３３の後面をヒートシンク９の受熱部４５にシリコン樹脂製の伝熱シート５３を介して接合することにより、電池充電ＩＣ３３の熱を受熱部４５の側へ効果的に逃がすようにしている。 When charging the secondary battery 5, the battery charging IC 33 generates heat, and the temperature rises to around 100.degree. Therefore, when the secondary battery 5 is repeatedly charged, the functional deterioration of the battery charging IC 33 progresses and the life of the battery charging IC 33 may be shortened. In order to solve such a problem, in this embodiment, the rear surface of the battery charging IC 33 is bonded to the heat receiving portion 45 of the heat sink 9 via a heat transfer sheet 53 made of silicon resin, so that the heat of the battery charging IC 33 is transferred to the heat receiving portion. He is trying to escape effectively to the 45 side.

具体的には、図６および図７に示すように、電池充電ＩＣ３３を間に挟んで、充電用実装領域Ｒの左右に挿通したビス（締結体）５４を、ディスタンスカラー５５を介して受熱部４５のねじ穴５６にねじ込んで、電池充電ＩＣ３３および伝熱シート５３が受熱部４５に密着する状態で、充電用実装領域Ｒを受熱部４５に締結固定している。このように、電池充電ＩＣ３３の熱を表面積が大きなヒートシンク９の側へ逃がすことにより、２次電池５を充電するときの電池充電ＩＣ３３の温度が高温になるのを防止できる。従って、２次電池５が繰返し充電される場合でも、電池充電ＩＣ３３の機能が劣化することを抑えて、２次電池５の充電を効率良く行うことができる。 Specifically, as shown in FIGS. 6 and 7 , screws (fastening bodies) 54 inserted on the left and right sides of the charging mounting area R with the battery charging IC 33 interposed therebetween are attached to the heat receiving portion via distance collars 55 . 45 to fasten and fix the charging mounting region R to the heat receiving portion 45 in a state in which the battery charging IC 33 and the heat transfer sheet 53 are in close contact with the heat receiving portion 45 . In this manner, the heat of the battery charging IC 33 is released to the heat sink 9 having a large surface area, thereby preventing the temperature of the battery charging IC 33 from becoming high when charging the secondary battery 5 . Therefore, even when the secondary battery 5 is repeatedly charged, it is possible to efficiently charge the secondary battery 5 by suppressing deterioration of the function of the battery charging IC 33 .

上記の接合構造によれば、充電用実装領域Ｒと受熱部４５を一対のビス５４で締結固定するだけの簡単な構造を付加するだけで、電池充電ＩＣ３３と受熱部４５の密着度合いを高めて、電池充電ＩＣ３３の熱をさらに効果的に受熱部４５へ伝導することができる。また、電池充電ＩＣ３３の周囲複数個所において、金属製のビス５４で、充電用実装領域Ｒを受熱部４５に締結固定するので、電池充電ＩＣ３３から受熱部４５への直接的な熱伝導に加えて、電池充電ＩＣ３３の周囲の基板面の熱をビス５４で受熱部４５に伝導して、電池充電ＩＣ３３から受熱部４５へ伝導される総熱量を増加できる。従って、電池充電ＩＣ３３が高温に晒されるのをさらに確実に解消して、充電回路３２の制御機能を長期にわたって正常な状態に維持できる。 According to the above-described joining structure, the degree of close contact between the battery charging IC 33 and the heat receiving portion 45 can be increased by simply adding a simple structure in which the charging mounting region R and the heat receiving portion 45 are fastened and fixed with a pair of screws 54. , the heat of the battery charging IC 33 can be more effectively conducted to the heat receiving portion 45 . In addition, since the mounting area R for charging is fastened and fixed to the heat receiving portion 45 with metal screws 54 at a plurality of locations around the battery charging IC 33, in addition to direct heat conduction from the battery charging IC 33 to the heat receiving portion 45, , the heat of the substrate surface around the battery charging IC 33 is conducted to the heat receiving portion 45 by the screws 54, so that the total amount of heat conducted from the battery charging IC 33 to the heat receiving portion 45 can be increased. Therefore, the exposure of the battery charging IC 33 to high temperatures can be more reliably eliminated, and the control function of the charging circuit 32 can be maintained in a normal state for a long period of time.

しかし、美容器具の使用時、例えば熱電変換素子８の冷熱が前熱刺激体３に供給され、熱電変換素子８の温熱がヒートシンク９の放熱部４４から放出される状況では、放熱部４４の熱が受熱部４５側へ伝導されて、電池充電ＩＣ３３の温度が上昇するおそれがある。こうした不具合を解消するために、放熱部４４と受熱部４５の間に熱遮断部５７を設け、熱遮断部５７に放熱部４４の熱が受熱部４５へ伝導するのを規制する熱遮断構造を設けている。図６に示すようにこの実施例では、熱遮断部５７に縦長長方形状の３個の熱遮断穴５８を前後に貫通する状態で設けて熱遮断構造とした。このように熱遮断部５７に熱遮断穴５８を設けると、熱遮断部５７における伝熱断面積を減少させることができるので、その分だけ放熱部４４から受熱部４５へ伝導される熱量を減少して、電池充電ＩＣ３３の温度が上昇するのを防止できる。また、熱遮断穴５８を形成するのに伴い熱遮断部５７の表面積を大きくして、熱遮断部５７における放熱作用を向上できる。 However, when the beauty tool is used, for example, the cold heat of the thermoelectric conversion element 8 is supplied to the pre-thermal stimulator 3, and the heat of the thermoelectric conversion element 8 is emitted from the heat dissipation portion 44 of the heat sink 9. is conducted to the heat receiving portion 45 side, and the temperature of the battery charging IC 33 may rise. In order to solve such a problem, a heat shielding portion 57 is provided between the heat radiating portion 44 and the heat receiving portion 45, and the heat shielding portion 57 has a heat shielding structure that restricts the conduction of heat from the heat radiating portion 44 to the heat receiving portion 45. are provided. As shown in FIG. 6, in this embodiment, a heat shielding structure is formed by providing a heat shielding portion 57 with three vertically long rectangular heat shielding holes 58 penetrating back and forth. By providing the heat shielding hole 58 in the heat shielding portion 57 in this way, the heat transfer cross-sectional area of the heat shielding portion 57 can be reduced, so that the amount of heat conducted from the heat radiating portion 44 to the heat receiving portion 45 can be reduced accordingly. As a result, it is possible to prevent the temperature of the battery charging IC 33 from rising. In addition, the surface area of the heat shielding portion 57 is increased by forming the heat shielding hole 58, so that the heat dissipation effect of the heat shielding portion 57 can be improved.

後熱刺激体４はプラスチック成形品からなり、部分球面状の肌接触面６１を有し、その周縁内面の４個所に弾性係合爪６２が一体に設けられている（図１参照）。また、後熱刺激体４の内面中央にはバイブレーター１９を水平姿勢で支持するホルダー枠２０が設けられている。後熱刺激体４の周縁にはリング状の接合部６３が設けられており、この接合部６３をパッキン６４と共に後装着座１６に接合し、弾性係合爪６２を後ケース１ｂの係合壁６５に係合することにより、後熱刺激体４を後ケース１ｂと一体化できる。図４に示すように、バイブレーター１９は、小型のモーター６６と、その出力軸に固定した偏心錘６７を備えており、モーター６６を回転駆動することにより振動を発生させることができる。後熱刺激体４の肌接触面６１の球面半径は、前熱刺激体３の肌接触面３５の球面半径より大きく設定してある。このように、後熱刺激体４の肌接触面６１の球面半径が大きく設定してあると、肌接触面６１の肌面に対する当りをソフトにして、バイブレーター１９による振動刺激が肌面に対して必要以上に付与されるのを防止できる。 The post-thermal stimulator 4 is made of a plastic molded article, has a partially spherical skin contact surface 61, and is integrally provided with elastic engaging claws 62 at four points on the inner peripheral surface thereof (see FIG. 1). A holder frame 20 for supporting the vibrator 19 in a horizontal posture is provided at the center of the inner surface of the post-thermal stimulator 4 . A ring-shaped joint portion 63 is provided on the peripheral edge of the rear heat stimulator 4. This joint portion 63 is joined together with a packing 64 to the rear mounting seat 16, and the elastic engaging claws 62 are connected to the engaging wall of the rear case 1b. By engaging with 65, the rear heat stimulator 4 can be integrated with the rear case 1b. As shown in FIG. 4, the vibrator 19 has a small motor 66 and an eccentric weight 67 fixed to its output shaft, and can generate vibrations by rotating the motor 66 . The spherical radius of the skin-contacting surface 61 of the post-thermal stimulator 4 is set larger than the spherical radius of the skin-contacting surface 35 of the pre-thermal stimulator 3 . When the spherical radius of the skin contact surface 61 of the post-thermal stimulator 4 is set large in this manner, the contact of the skin contact surface 61 against the skin surface is softened, and vibration stimulation by the vibrator 19 is applied to the skin surface. It is possible to prevent giving more than necessary.

伝熱体１０は、アルミニウム合金などの金属製のダイキャスト成形品からなり、後熱刺激体４の内面（前面）に密着する部分球殻状の本体部１０ａと、本体部１０ａの内面の上下に突設される受熱軸１０ｂとを一体に備えている。本体部１０ａの中央部分にはバイブレーター１９を受入れる逃げ開口６９が形成されている。受熱軸１０ｂを伝熱ボス４９に内嵌連結させるために、後ケース１ｂの内壁１７には上下一対の挿通穴７０が形成されている。また、挿通穴７０の上下にはヒートシンク９の放熱フィン４３に接当する押圧リブ７１が突設されている。 The heat transfer body 10 is made of a die-cast metal product such as an aluminum alloy. It is integrally provided with a heat receiving shaft 10b projecting from. A relief opening 69 for receiving the vibrator 19 is formed in the central portion of the body portion 10a. A pair of upper and lower insertion holes 70 are formed in the inner wall 17 of the rear case 1b so as to internally fit and connect the heat receiving shaft 10b to the heat transfer boss 49. As shown in FIG. Pressing ribs 71 are provided above and below the insertion hole 70 so as to be in contact with the heat radiating fins 43 of the heat sink 9 .

前熱刺激体３、熱電変換素子８、ヒートシンク９と、制御基板６は、以下の手順で前ケース１ａに組むことができる。まず、給電ソケット７が接続された制御基板６の充電用実装領域Ｒを、ヒートシンク９の受熱部４５に正対させ、伝熱シート５３および電池充電ＩＣ３３が受熱部４５に密着する状態で、充電用実装領域Ｒを２個のビス５４で受熱部４５に締結して、制御基板６とヒートシンク９を一体化する。次に、前ケース１ａの前装着座１４にパッキン３９と前熱刺激体３を仮組みし、さらに前熱刺激体３の素子接合座３６に伝熱シート４０と熱電変換素子８を組み、熱電変換素子８の後面に２枚目の伝熱シート４０を組む。この状態で、制御基板６が一体化されたヒートシンク９を、前ケース１ａの内面に組んで、位置決め凹部５０を位置決めリブ５１に係合させて、ヒートシンク９を前ケース１ａに対して位置決めしたのち、制御基板６を４個のビス２９で前ケース１ａに固定し、給電ソケット７を前ケース１ａの係合溝に嵌め込む。 The pre-thermal stimulator 3, the thermoelectric conversion element 8, the heat sink 9, and the control board 6 can be assembled in the front case 1a by the following procedure. First, the charging mounting region R of the control board 6 to which the power supply socket 7 is connected is directly opposed to the heat receiving portion 45 of the heat sink 9, and the heat transfer sheet 53 and the battery charging IC 33 are in close contact with the heat receiving portion 45. The mounting area R is fastened to the heat receiving portion 45 with two screws 54 to integrate the control board 6 and the heat sink 9 . Next, the packing 39 and the front thermal stimulator 3 are temporarily assembled to the front mounting seat 14 of the front case 1a, and further the heat transfer sheet 40 and the thermoelectric conversion element 8 are assembled to the element bonding seat 36 of the front thermal stimulator 3, and the thermoelectric A second heat transfer sheet 40 is assembled on the rear surface of the conversion element 8 . In this state, the heat sink 9 integrated with the control board 6 is assembled on the inner surface of the front case 1a, the positioning recesses 50 are engaged with the positioning ribs 51, and the heat sink 9 is positioned with respect to the front case 1a. , the control board 6 is fixed to the front case 1a with four screws 29, and the power supply socket 7 is fitted into the engagement groove of the front case 1a.

以上の組付けが終了したら、後ケース１ｂを前ケース１ａに被付けて締結ボス１８を筒ボス４８の内部に挿入し、締結ボス１８の前端を前熱刺激体３のねじボス３７に外嵌させる。この状態で、筒ボス４８に挿入したビス（締結具）７２をねじボス３７にねじ込み、さらに後ケース１ｂの下部に挿通したビス７３（図３参照）を前ケース１ａのねじボス７４にねじ込むことにより、前後ケース１ａ・１ｂを一体化できる。前後ケース１ａ・１ｂを一体化した状態では、前熱刺激体３が後ケース１ｂ側へ引寄せられ、さらに、後ケース１ｂに設けた押圧リブ７１が放熱フィン４３に接当して、ヒートシンク９を前ケースに押付けている。つまり、熱電変換素子８とヒートシンク９は、前ケース１ａに装着した前熱刺激体３と後ケース１ｂで挟持固定されており、前ケース１ａは、前熱刺激体３と後ケース１ｂで挟持固定されている。以後は、伝熱体１０の受熱軸１０ｂの前部を挿通穴７０から伝熱ボス４９のボス内に係合して、伝熱体１０をヒートシンク９に連結する。最後に、パッキン６４と後熱刺激体４を後ケース１ｂの後装着座１６に接合し、後熱刺激体４の弾性係合爪６２を後ケース１ｂの係合壁６５に係合することにより、美容器具を完成できる。 After the above assembly is completed, the rear case 1b is put on the front case 1a, the fastening boss 18 is inserted into the cylindrical boss 48, and the front end of the fastening boss 18 is fitted onto the screw boss 37 of the front thermal stimulator 3. Let In this state, a screw (fastener) 72 inserted into the cylindrical boss 48 is screwed into the screw boss 37, and a screw 73 (see FIG. 3) inserted through the lower portion of the rear case 1b is screwed into the screw boss 74 of the front case 1a. Thus, the front and rear cases 1a and 1b can be integrated. When the front and rear cases 1a and 1b are integrated, the front heat stimulator 3 is drawn toward the rear case 1b, and the pressing ribs 71 provided on the rear case 1b are brought into contact with the heat radiation fins 43 to form the heat sink 9. is pressed against the front case. That is, the thermoelectric conversion element 8 and the heat sink 9 are sandwiched and fixed between the front thermal stimulator 3 and the rear case 1b attached to the front case 1a, and the front case 1a is sandwiched and fixed between the front thermal stimulator 3 and the rear case 1b. It is Thereafter, the heat transfer member 10 is connected to the heat sink 9 by engaging the front portion of the heat receiving shaft 10 b of the heat transfer member 10 with the boss of the heat transfer boss 49 through the insertion hole 70 . Finally, the packing 64 and the rear heat stimulator 4 are joined to the rear mounting seat 16 of the rear case 1b, and the elastic engaging claws 62 of the rear heat stimulator 4 are engaged with the engaging walls 65 of the rear case 1b. , can complete the beauty appliance.

美容器具を使用するときは、電源スイッチ２３をオン状態に切換えたのち、運転モードの切換えスイッチ２６を操作して、温熱モードと、冷熱モードと、温冷交互モードのいずれかを選択する。さらに、イオン導入／導出スイッチ２４をオン操作し、さらにバイブレーター１９用のスイッチ２５をオン操作することにより、美容器具をユーザーの目的に応じた運転状態に設定できる。温熱モードにおいては、前熱刺激体３が熱電変換素子８で加熱され、冷熱モードにおいては、前熱刺激体３が熱電変換素子８で冷却される。 When using the beauty instrument, after switching the power switch 23 to the ON state, the operation mode switching switch 26 is operated to select one of the hot mode, the cold mode, and the alternating hot/cold mode. Furthermore, by turning on the iontophoresis/derivation switch 24 and by turning on the switch 25 for the vibrator 19, the beauty instrument can be set to an operating state according to the user's purpose. In the heat mode, the pre-thermal stimulator 3 is heated by the thermoelectric conversion element 8, and in the cold-heat mode, the pre-thermal stimulator 3 is cooled by the thermoelectric conversion element 8.

イオン導入時には、前熱刺激体３にマイナス極性のパルス電流が供給され、グリップ電極２１にはプラス極性のパルス電流が供給されている。グリップ電極２１を手で握り、前熱刺激体３を顔肌に押し付けることにより閉ループが形成されて、顔肌に電流刺激を付与しながら化粧水をしみこませることができる。イオン導出時には、前熱刺激体３にプラス極性、グリップ電極２１にマイナス極性のパルス電流が供給される。グリップ電極２１を手で握り、前熱刺激体３を顔肌に押し付けることにより閉ループが形成されて、顔肌に電流刺激を付与しながら毛穴などに入り込んでいる汚れを取除くことができる。バイブレーター１９用のスイッチ２５はユーザーの好みでオン・オフできるが、特定の運転モードではバイブレーター１９が自動的に起動される。 During iontophoresis, the prethermal stimulator 3 is supplied with a negative pulse current, and the grip electrodes 21 are supplied with a positive pulse current. A closed loop is formed by gripping the grip electrode 21 and pressing the pre-thermal stimulator 3 against the facial skin, so that the lotion can be permeated while applying electric current stimulation to the facial skin. At the time of deriving ions, a positive pulse current is supplied to the pre-thermal stimulator 3 and a negative pulse current is supplied to the grip electrode 21 . A closed loop is formed by gripping the grip electrode 21 and pressing the pre-thermal stimulator 3 against the facial skin, and dirt in the pores can be removed while applying current stimulation to the facial skin. The switch 25 for the vibrator 19 can be turned on or off at the user's preference, but in certain driving modes the vibrator 19 is automatically activated.

以上のように構成した実施例１の小型電気機器は、以下のように表現できる。
本体ケース１のヘッド部２（一端）に、熱電変換素子８と、熱電変換素子８の前面に接合される刺激付与体３と、熱電変換素子８の後面に接合されるヒートシンク９とを備えた肌刺激構造が配置されており、
本体ケース１は、前後に分割された前ケース１ａと後ケース１ｂを接合して中空ケース状に構成されており、
本体ケース１のヘッド部２（一端）の前ケース１ａにはシンク開口１３が開口されて、
シンク開口１３の外面に刺激付与体３が配置され、シンク開口１３の内面にヒートシンク９が配置されており、
後ケース１ｂは前ケース１ａに接合された状態で、後ケース１ｂの後面側から刺激付与体３にねじ込んだ締結具７２で締結固定されて、刺激付与体３と熱電変換素子８、およびヒートシンク９が前ケース１ａおよび後ケース１ｂと一体化されており、
一体化された状態における熱電変換素子８とヒートシンク９が、刺激付与体３と後ケース１ｂで挟持固定されており、
さらに、前ケース１ａがヒートシンク９および後ケース１ｂと刺激付与体３で挟持固定されており、
刺激付与体３が前ケース１ａに対してパッキン３９を介して接合されている小型電気機器。 The compact electrical device of Example 1 configured as described above can be expressed as follows.
The head part 2 (one end) of the body case 1 is provided with a thermoelectric conversion element 8, a stimulus applying body 3 joined to the front surface of the thermoelectric conversion element 8, and a heat sink 9 joined to the rear surface of the thermoelectric conversion element 8. A skin stimulation structure is arranged,
The main body case 1 is configured in a hollow case shape by joining a front case 1a and a rear case 1b, which are divided into front and rear.
A sink opening 13 is opened in the front case 1a of the head portion 2 (one end) of the main body case 1,
The stimulator 3 is arranged on the outer surface of the sink opening 13, the heat sink 9 is arranged on the inner surface of the sink opening 13,
While the rear case 1b is joined to the front case 1a, it is fastened and fixed by a fastener 72 screwed into the stimulation imparting body 3 from the rear surface side of the rear case 1b, and the stimulation imparting body 3, the thermoelectric conversion element 8, and the heat sink 9. is integrated with the front case 1a and the rear case 1b,
The thermoelectric conversion element 8 and the heat sink 9 in an integrated state are sandwiched and fixed between the stimulation applying body 3 and the rear case 1b,
Furthermore, the front case 1a is clamped and fixed by the heat sink 9, the rear case 1b, and the stimulation applying body 3,
A small electrical device in which a stimulator 3 is joined to a front case 1a via a packing 39.

上記のように構成した小型電気機器によれば、刺激付与体３、熱電変換素子８、およびヒートシンク９を前ケース１ａに仮組みし、さらに後ケース１ｂを前ケース１ａに接合した状態で、後ケース１ｂの後面側から刺激付与体３に締結具７２をねじ込むことで、肌刺激構造を前後ケース１ａ・１ｂと一体化できる。つまり、刺激付与体３、熱電変換素子８、ヒートシンク９と前後ケース１ａ・１ｂの５者を、１個の締結具７２のみで一体化し固定できるので、刺激付与体３、熱電変換素子８、ヒートシンク９を、例えば前ケース１ａに順に締結固定する必要がなく、しかも締結具７２の使用個数を最小限化して、その分だけ組立に要する手間とコストを軽減できる。さらに、刺激付与体３を前ケース１ａに対してパッキン３９を介して接合するので、化粧液を併用して刺激付与体３でスキンケアを行う場合に、化粧液がヘッド部２の内部に浸入するのを確実に防止でき、化粧液の侵入を原因とする電気的故障を解消できる。なお、シンク基部４７の後面の複数個所に締結構造が設けてある場合でも、個々の締結構造を１個の締結具７２のみで一体化し固定できる。 According to the small electric device configured as described above, the stimulator 3, the thermoelectric conversion element 8, and the heat sink 9 are temporarily assembled to the front case 1a, and the rear case 1b is joined to the front case 1a. The skin stimulating structure can be integrated with the front and rear cases 1a and 1b by screwing the fastener 72 into the stimulation applying body 3 from the rear side of the case 1b. In other words, the stimulator 3, the thermoelectric conversion element 8, the heat sink 9, and the front and rear cases 1a and 1b can be integrated and fixed with only one fastener 72, so that the stimulator 3, the thermoelectric conversion element 8, and the heat sink 9, for example, to the front case 1a in sequence, and the number of fasteners 72 to be used can be minimized, thereby reducing labor and cost required for assembly. Furthermore, since the stimulus applying body 3 is joined to the front case 1a via the packing 39, the cosmetic liquid enters the inside of the head portion 2 when skin care is performed using the stimulating body 3 in combination with the cosmetic liquid. can be reliably prevented, and the electrical failure caused by the intrusion of cosmetic liquid can be eliminated. Even when fastening structures are provided at a plurality of locations on the rear surface of the sink base 47, the individual fastening structures can be integrated and fixed with only one fastener 72. FIG.

刺激付与体３に締結具７２用のねじボス３７が設けられ、後ケース１ｂにねじボス３７に連結される締結ボス１８が設けられており、
ヒートシンク９に前後貫通状の筒ボス４８が形成されており、
締結ボス１８およびねじボス３７は、筒ボス４８の内部で係合連結されて、ねじボス３７に挿通した締結具７２を締結ボス１８にねじ込むことにより固定されている美容器具。 The stimulation body 3 is provided with a screw boss 37 for the fastener 72, and the rear case 1b is provided with a fastening boss 18 connected to the screw boss 37,
The heat sink 9 is formed with a cylindrical boss 48 that penetrates in the front-rear direction,
The fastening boss 18 and the screw boss 37 are engaged and connected inside the cylindrical boss 48 , and fixed by screwing the fastener 72 inserted through the screw boss 37 into the fastening boss 18 .

上記のように、締結ボス１８およびねじボス３７を筒ボス４８の内部で接合し、両ボス１８・３７を締結具７２で一体化すると、締結ボス１８およびねじボス３７、あるいはいずれか一方のボスで筒ボス４８を支持することにより、ヒートシンク９を刺激付与体３および後ケース１ｂに対して正確に位置決めし、さらにヒートシンク９が刺激付与体３および後ケース１ｂに対して遊動するのを阻止できる。従って、刺激付与体３、熱電変換素子８、ヒートシンク９と前後ケース１ａ・１ｂの５者を、１個の締結具７２のみで一体化できるにも拘らず、ヒートシンク９を刺激付与体３および後ケース１ｂに対して、常に適正に組立てることができる。シンク基部４７の後面の複数個所に締結構造が設けてある場合でも、個々の締結構造を１個の締結具７２のみで一体化し固定しながら、ヒートシンク９を刺激付与体３および後ケース１ｂに対して、常に適正に組立てることができる。 As described above, when the fastening boss 18 and the screw boss 37 are joined inside the cylindrical boss 48 and the two bosses 18 and 37 are integrated with the fastener 72, the fastening boss 18 and the screw boss 37, or either one of the bosses By supporting the cylindrical boss 48 with , the heat sink 9 can be accurately positioned with respect to the stimulator 3 and the rear case 1b, and the heat sink 9 can be prevented from floating with respect to the stimulator 3 and the rear case 1b. . Therefore, although the stimulation applying body 3, the thermoelectric conversion element 8, the heat sink 9, and the front and rear cases 1a and 1b can be integrated with only one fastener 72, the heat sink 9 can be integrated with the stimulation applying body 3 and the rear case 1a, 1b. It can always be properly assembled with respect to the case 1b. Even when fastening structures are provided at a plurality of locations on the rear surface of the sink base 47, the individual fastening structures are integrated and fixed with only one fastener 72, and the heat sink 9 is attached to the stimulator 3 and the rear case 1b. can always be properly assembled.

シンク開口１３の周囲壁の外面および内面に、刺激付与体３およびヒートシンク９がそれぞれ接合されて、刺激付与体３およびヒートシンク９がシンク開口１３の周囲壁を内外に挟持しており、
シンク開口１３の周囲壁の内面と、同壁と対向するヒートシンク９に、互いに係合して、ヒートシンク９を前ケース１ａに対して位置決めする位置決め凹部５０と位置決めリブ５１が設けられており、
刺激付与体３およびヒートシンク９に作用する締結具７２の締結力を、シンク開口１３の周囲壁で受止めている小型電気機器。 The stimulator 3 and the heat sink 9 are respectively bonded to the outer and inner surfaces of the peripheral wall of the sink opening 13, and the stimulator 3 and the heat sink 9 sandwich the peripheral wall of the sink opening 13 inside and outside,
The inner surface of the peripheral wall of the sink opening 13 and the heat sink 9 facing the wall are provided with a positioning recess 50 and a positioning rib 51 that engage with each other to position the heat sink 9 with respect to the front case 1a,
A small electric device in which the surrounding wall of the sink opening 13 receives the fastening force of the fastener 72 acting on the stimulator 3 and the heat sink 9 .

上記のように、刺激付与体３およびヒートシンク９に作用する締結具７２の締結力を、シンク開口１３の周囲壁で受止めるようにすると、刺激付与体３とヒートシンク９の間に配置した熱電変換素子８を常に適正な挟持力で挟持固定して、仕様通りの熱特性を発揮させることができる。因みに、刺激付与体３およびヒートシンク９の締結力が、熱電変換素子８の前後面に直接作用する場合には、刺激付与体３に過剰な挟持力が作用して、熱特性が変化するなどの故障を発生し、あるいは破損するおそれがある。また、位置決め凹部５０と位置決めリブ５１を互いに係合させることにより、ヒートシンク９を前ケース１ａに対して位置決めした状態で常に適正に組むことができる。 As described above, when the fastening force of the fasteners 72 acting on the stimulator 3 and the heat sink 9 is received by the surrounding wall of the sink opening 13, the thermoelectric converter disposed between the stimulator 3 and the heat sink 9 is arranged between the stimulator 3 and the heat sink 9. The element 8 can always be clamped and fixed with an appropriate clamping force to exhibit the thermal characteristics as specified. Incidentally, when the fastening force between the stimulus imparting body 3 and the heat sink 9 directly acts on the front and rear surfaces of the thermoelectric conversion element 8, an excessive clamping force acts on the stimulus imparting body 3, resulting in a change in thermal characteristics. Failure or damage may occur. Further, by engaging the positioning recesses 50 and the positioning ribs 51 with each other, the heat sink 9 can always be properly assembled while being positioned with respect to the front case 1a.

本体ケース１のヘッド部２（一端）に、熱電変換素子８と、熱電変換素子８の前面に接合される刺激付与体３と、熱電変換素子８の後面に接合されるヒートシンク９を備えた肌刺激構造が配置されており、
本体ケース１のヘッド部２（一端）の後面に後側の刺激付与体４が配置されて、後側の刺激付与体４の内面に、ヒートシンク９の熱を後側の刺激付与体４に伝導する伝熱体１０が設けられており、
刺激付与体４の内面に、振動を生起するバイブレーター１９が配置されている小型電気機器。 The head part 2 (one end) of the main body case 1 is equipped with the thermoelectric conversion element 8, the stimulus applying body 3 joined to the front surface of the thermoelectric conversion element 8, and the heat sink 9 joined to the rear surface of the thermoelectric conversion element 8. The stimulus structure is arranged and
A rear stimulation body 4 is arranged on the rear surface of the head part 2 (one end) of the main body case 1, and the heat of the heat sink 9 is conducted to the rear stimulation body 4 on the inner surface of the rear stimulation body 4. A heat transfer body 10 is provided to
A small electrical device in which a vibrator 19 for generating vibration is arranged on the inner surface of a stimulator 4 .

本体ケース１のヘッド部２の後面に、後側の刺激付与体４を設けるようにした美容器具によれば、熱電変換素子８からヒートシンク９に伝導された冷熱または温熱を、伝熱体１０で後側の刺激付与体４に伝導して、後側の刺激付与体４によって肌面に熱刺激を付与しながらスキンケアを行うことができる。また、刺激付与体４の内面に配置したバイブレーター１９を作動させてスキンケアを行うことにより、振動刺激と熱刺激を同時に付与して、後側の刺激付与体４によるスキンケアをさらに効果的に行うことができる。 According to the beauty tool in which the stimulating body 4 on the rear side is provided on the rear surface of the head portion 2 of the main body case 1, cold or hot heat conducted from the thermoelectric conversion element 8 to the heat sink 9 is transferred by the heat transfer body 10. Skin care can be performed while conducting to the stimulation applying body 4 on the rear side and giving a thermal stimulation to the skin surface by the stimulation applying body 4 on the rear side. In addition, by operating the vibrator 19 arranged on the inner surface of the stimulation applying body 4 to perform skin care, the vibration stimulation and the thermal stimulation are applied simultaneously, and the skin care by the stimulation applying body 4 on the rear side can be performed more effectively. can be done.

伝熱体１０は、後側の刺激付与体４の内面に密着する部分球殻状の本体部１０ａと、本体部１０ａの内面に突設されて、ヒートシンク９の熱を本体部１０ａへ伝導する複数の受熱軸１０ｂを一体に備えており、
バイブレーター１９が、後側の刺激付与体４の内面に設けたホルダー枠２０に装着されて、バイブレーター１９およびホルダー枠２０が、本体部１０ａの中央に形成した逃げ開口６９を介して伝熱体１０の内面側に位置されている小型電気機器。 The heat transfer body 10 has a partially spherical shell-shaped main body part 10a that is in close contact with the inner surface of the stimulation applying body 4 on the rear side, and is protruded from the inner surface of the main body part 10a to conduct the heat of the heat sink 9 to the main body part 10a. A plurality of heat receiving shafts 10b are integrally provided,
The vibrator 19 is attached to the holder frame 20 provided on the inner surface of the stimulation applying body 4 on the rear side, and the vibrator 19 and the holder frame 20 pass through the escape opening 69 formed in the center of the main body 10a. A small electrical device located on the inner side of the

上記のように、本体部１０ａと複数の受熱軸１０ｂで伝熱体１０を構成し、ヒートシンク９の熱を受熱軸１０ｂで本体部１０ａへ伝導し、さらに本体部１０ａの熱を後側の刺激付与体４に伝導するようにすると、ヒートシンク９の冷熱または温熱を部分球殻状の本体部１０ａで後側の刺激付与体４にむらなく伝導でき、同時に後側の刺激付与体４の中央付近に配置したバイブレーター１９で、刺激付与体４の全体をむらなく振動させながら、肌接触面６１によるスキンケアをさらに効果的に行うことができる。また、バイブレーター１９およびホルダー枠２０が、本体部１０ａの中央に形成した逃げ開口６９を介して伝熱体１０の内面側に位置されているので、伝熱体１０がバイブレーター１９およびホルダー枠２０と直接接触してがたつき、騒音源になるのを防止できる。 As described above, the body portion 10a and the plurality of heat receiving shafts 10b constitute the heat transfer body 10, the heat of the heat sink 9 is conducted to the body portion 10a by the heat receiving shafts 10b, and the heat of the body portion 10a is transferred to the rear side stimulus. When conducting to the applicator 4, the heat or cold heat of the heat sink 9 can be evenly conducted to the stimulus applicator 4 on the rear side through the main body part 10a having the shape of a partial spherical shell, and at the same time near the center of the stimulus applicator 4 on the rear side. With the vibrator 19 arranged in the body, the skin contact surface 61 can more effectively perform skin care while vibrating the entire stimulus imparting body 4 evenly. In addition, since the vibrator 19 and the holder frame 20 are positioned on the inner surface side of the heat transfer body 10 via the escape opening 69 formed in the center of the main body portion 10a, the heat transfer body 10 is positioned between the vibrator 19 and the holder frame 20. It can be prevented from becoming a source of noise due to rattling caused by direct contact.

（実施例２）図８に、電池充電ＩＣ３３とヒートシンク９の接合構造を変更した、本発明の実施例２に係る小型電気機器（美容器具）を示す。実施例２では、ヒートシンク９の受熱部４５の肉壁に受熱凹部７７を形成し、受熱凹部７７の内部に制御基板６の充電用実装領域Ｒと電池充電ＩＣ３３を収容して、充電用実装領域Ｒの基板面と電池充電ＩＣ３３を、受熱凹部７７の前後の対向面に伝熱シート５３を介して密着させるようにした。受熱凹部７７は、受熱部４５の左右両側と下面に向かって開口している。充電回路３２は、受熱凹部７７より下方の基板面に配置した。また、実施例２では、熱遮断部５７の前後面に、断面が半円状の熱遮断溝５８を形成して、当該熱遮断溝５８を熱遮断構造とした。他は実施例１と同じであるので、同じ部材に同じ符号を付して、その説明を省略する。以下の実施例においても同じとする。 (Embodiment 2) FIG. 8 shows a small electric device (beauty appliance) according to Embodiment 2 of the present invention, in which the joint structure between the battery charging IC 33 and the heat sink 9 is changed. In the second embodiment, a heat receiving recess 77 is formed in the wall of the heat receiving portion 45 of the heat sink 9, and the charging mounting region R of the control board 6 and the battery charging IC 33 are accommodated in the heat receiving recess 77 to form a charging mounting region. The substrate surface of R and the battery charging IC 33 are brought into close contact with the front and rear opposing surfaces of the heat receiving recess 77 via the heat transfer sheet 53 . The heat-receiving recesses 77 are open toward the left and right sides of the heat-receiving portion 45 and toward the bottom surface. The charging circuit 32 was arranged on the substrate surface below the heat receiving concave portion 77 . Further, in Example 2, heat shielding grooves 58 having a semicircular cross section are formed on the front and rear surfaces of the heat shielding portion 57, and the heat shielding grooves 58 have a heat shielding structure. Since other parts are the same as those of the first embodiment, the same reference numerals are given to the same members, and the description thereof will be omitted. The same applies to the following examples.

上記のように、充電用実装領域Ｒの基板面と電池充電ＩＣ３３を、受熱凹部７７の前後の対向面に密着させると、電池充電ＩＣ３３の熱を、電池充電ＩＣ３３と充電用実装領域Ｒの基板面の各接合面から受熱部４５に同時に伝導して、電池充電ＩＣ３３の温度が高くなるのをさらに効果的に防止できる。従って、電池充電ＩＣ３３の機能が劣化するのを防止して、２次電池５の充電を効率良く行うことができる。 As described above, when the substrate surface of the charging mounting area R and the battery charging IC 33 are brought into close contact with the front and rear opposing surfaces of the heat receiving recess 77, the heat of the battery charging IC 33 is transferred to the battery charging IC 33 and the substrate of the charging mounting area R. It is possible to more effectively prevent the temperature of the battery charging IC 33 from rising by simultaneously conducting the heat from the joint surfaces of the surfaces to the heat receiving portion 45 . Therefore, the function of the battery charging IC 33 is prevented from deteriorating, and the secondary battery 5 can be efficiently charged.

（実施例３）図９および図１０に、電池充電ＩＣ３３とヒートシンク９の接合構造を変更した本発明の実施例３に係る小型電気機器（美容器具）を示す。実施例３では、ヒートシンク９の受熱部４５と制御基板６の充電用実装領域Ｒを本体ケース１の下端寄りにまで連出し、充電用実装領域Ｒに実装した電池充電ＩＣ３３を受熱部４５の下端寄りに密着接合した。受熱部４５と充電用実装領域Ｒは、２次電池５の下端を越えた位置まで連出されている。また、この実施例では、熱遮断部５７に一群の熱遮断穴５８を前後に貫通する状態で設けて、当該熱遮断穴５８を熱遮断構造とした。熱遮断穴５８の一群は、上下一対の４個の直線列の間に３個の直線列を配置して、熱伝導通路がジグザグになるようにした。 (Embodiment 3) FIGS. 9 and 10 show a small electric device (beauty appliance) according to Embodiment 3 of the present invention, in which the joint structure between the battery charging IC 33 and the heat sink 9 is changed. In the third embodiment, the heat receiving portion 45 of the heat sink 9 and the charging mounting area R of the control board 6 extend to the lower end of the main body case 1, and the battery charging IC 33 mounted in the charging mounting area R is mounted on the lower end of the heat receiving portion 45. They were closely joined together. The heat-receiving portion 45 and the charging mounting area R extend to a position beyond the lower end of the secondary battery 5 . Further, in this embodiment, a group of heat shielding holes 58 are provided in the heat shielding portion 57 so as to penetrate therethrough in the front-rear direction, and the heat shielding holes 58 have a heat shielding structure. The groups of heat blocking holes 58 were arranged in three linear rows between a pair of four linear rows, one above the other, so that the heat transfer paths were staggered.

実施例３の接合構造では、ヒートシンク９の受熱部４５を本体ケース１の下端寄りにまで連出するだけの単純な構造のみで、受熱部４５の放熱面積を大きくして、その分だけ受熱部４５の放熱熱量を向上し、電池充電ＩＣ３３の温度上昇を抑止できる。従って、２次電池５が繰返し充電される場合でも、電池充電ＩＣ３３が高温に晒されて、充電制御機能が劣化するのを効果的に防止して、２次電池５の充電を効率良く行うことができる。また、電池充電ＩＣ３３を受熱部４５の下端寄りに密着接合するので、放熱部４４から電池充電ＩＣ３３に至る熱伝導経路長を大きくすることができ、その分だけ放熱部４４から電池充電ＩＣ３３へ伝導する熱量を減少できる。さらに、熱遮断部５７における熱伝導通路をジグザグに設けたため、放熱部４４から電池充電ＩＣ３３への熱移動を阻害できる利点もある。 In the joint structure of the third embodiment, the heat-receiving portion 45 of the heat sink 9 has only a simple structure extending to the lower end of the main body case 1, and the heat-dissipating area of the heat-receiving portion 45 is increased. 45 is improved, and the temperature rise of the battery charging IC 33 can be suppressed. Therefore, even when the secondary battery 5 is repeatedly charged, the battery charging IC 33 is effectively prevented from being exposed to a high temperature and deterioration of the charging control function is effectively prevented, and the secondary battery 5 is efficiently charged. can be done. In addition, since the battery charging IC 33 is closely bonded to the lower end of the heat receiving portion 45, the length of the heat conduction path from the heat radiating portion 44 to the battery charging IC 33 can be increased. The amount of heat generated can be reduced. Furthermore, since the heat conduction passage in the heat shielding portion 57 is provided in a zigzag pattern, there is an advantage that heat transfer from the heat radiating portion 44 to the battery charging IC 33 can be inhibited.

（実施例４）図１１および図１２に、電池充電ＩＣ３３とヒートシンク９の接合構造を変更した本発明の実施例４に係る小型電気機器（美容器具）を示す。実施例４では、本体ケース１の下端寄りに位置する制御基板６に縦長のスリット状の切欠７９を形成し、この切欠７９に沿って制御基板６の厚み方向へ弾性変形可能な充電用実装領域Ｒを形成した。また、充電用実装領域Ｒに充電回路３２と電池充電ＩＣ３３を配置し、電池充電ＩＣ３３を充電用実装領域Ｒの下端側に位置させるようにした。制御基板６を前ケース１ａの内部に固定し、ヒートシンク９を本体ケース１の内部に組んだ状態では、図１２に示すように、電池充電ＩＣ３３が受熱部４５で伝熱シート５３を介して押圧されるので、充電用実装領域Ｒが弾性変形する。 (Embodiment 4) FIGS. 11 and 12 show a small electric device (beauty tool) according to Embodiment 4 of the present invention, in which the joint structure between the battery charging IC 33 and the heat sink 9 is changed. In the fourth embodiment, a vertically elongated slit-shaped cutout 79 is formed in the control board 6 located near the lower end of the main body case 1, and along this cutout 79, a charging mounting area that is elastically deformable in the thickness direction of the control board 6 is formed. formed R. Also, the charging circuit 32 and the battery charging IC 33 are arranged in the mounting area R for charging, and the battery charging IC 33 is positioned on the lower end side of the mounting area R for charging. When the control board 6 is fixed inside the front case 1a and the heat sink 9 is assembled inside the main case 1, the battery charging IC 33 is pressed by the heat receiving portion 45 via the heat transfer sheet 53 as shown in FIG. Therefore, the charging mounting area R is elastically deformed.

実施例４の接合構造では、電池充電ＩＣ３３が充電用実装領域Ｒの基板の弾性力で、ヒートシンク９の受熱部４５に密着されるので、電池充電ＩＣ３３の熱をさらに効果的に受熱部４５へ伝導することができる。また、充電用実装領域Ｒを受熱部４５に締結するためのビス５４やディスタンスカラー５５を省略できる分だけ接合構造のコストを削減できる。 In the bonding structure of the fourth embodiment, the battery charging IC 33 is brought into close contact with the heat receiving portion 45 of the heat sink 9 by the elastic force of the substrate in the charging mounting area R, so that the heat of the battery charging IC 33 is more effectively transferred to the heat receiving portion 45. can be conducted. In addition, the cost of the joint structure can be reduced by the amount that the screw 54 and the distance collar 55 for fastening the charging mounting region R to the heat receiving portion 45 can be omitted.

（実施例５）図１３に、電池充電ＩＣ３３とヒートシンク９の接合構造を変更した本発明の実施例５に係る小型電気機器（美容器具）を示す。実施例５では、本体ケース１の下端寄りに位置する制御基板６に上下一対の横長のスリット状の切欠７９を形成し、この切欠７９の間を充電用実装領域Ｒとして、同領域Ｒの受熱部４５との対向面の先端寄りに電池充電ＩＣ３３を配置した。充電用実装領域Ｒは、実施例４の充電用実装領域Ｒと同様に、制御基板６の厚み方向へ弾性変形可能であり、電池充電ＩＣ３３を充電用実装領域Ｒの基板の弾性力で、受熱部４５に密着付勢する。充電回路３２は、下側の切欠７９より下方の基板に配置されている。 (Embodiment 5) FIG. 13 shows a small electric device (beauty tool) according to Embodiment 5 of the present invention, in which the joint structure between the battery charging IC 33 and the heat sink 9 is changed. In the fifth embodiment, a pair of vertically elongated slit-shaped cutouts 79 are formed in the control board 6 located near the lower end of the main body case 1, and the space between the cutouts 79 is defined as a charging mounting region R, and the heat receiving region R is formed. A battery charging IC 33 is arranged near the tip of the surface facing the portion 45 . The charging mounting area R can be elastically deformed in the thickness direction of the control board 6 in the same manner as the charging mounting area R of the fourth embodiment. The portion 45 is tightly urged. The charging circuit 32 is arranged on the substrate below the notch 79 on the lower side.

実施例５の接合構造によれば、実施例４の接合構造と同様に、充電用実装領域Ｒの基板の弾性力で、電池充電ＩＣ３３が受熱部４５に密着付勢されるので、電池充電ＩＣ３３の熱をさらに効果的に受熱部４５へ伝導することができる。また、充電用実装領域Ｒを受熱部４５に締結するためのビス５４やディスタンスカラー５５を省略できる分だけ接合構造のコストを削減できる。 According to the joint structure of the fifth embodiment, similar to the joint structure of the fourth embodiment, the elastic force of the substrate in the charging mounting area R urges the battery charging IC 33 to adhere to the heat receiving portion 45. Therefore, the battery charging IC 33 can be conducted to the heat receiving portion 45 more effectively. In addition, the cost of the joint structure can be reduced by the amount that the screw 54 and the distance collar 55 for fastening the charging mounting region R to the heat receiving portion 45 can be omitted.

（実施例６）図１４および図１５に、電池充電ＩＣ３３とヒートシンク９の接合構造を変更した本発明の実施例６に係る小型電気機器（美容器具）を示す。実施例６では、制御基板６の下部の充電用実装領域Ｒに、充電回路３２と電池充電ＩＣ３３を配置した。また、放熱部４４の下部一側に上下寸法が小さな受熱部４５と熱遮断部５７を設け、電池充電ＩＣ３３と受熱部４５を上下に長い銅製の伝熱具８０で接続して、電池充電ＩＣ３３の熱を伝熱具８０で受熱部４５に伝導するようにした。帯板状の伝熱具８０の上端はビス８１で受熱部４５に締結されており、伝熱具８０の下部はビス５４とナット８２で制御基板６に締結されている。伝熱具８０の厚みは、受熱部４５の前後厚みより薄く設定されており、伝熱具８０の左右幅は、受熱部４５の左右幅より小さく設定されている。また、熱遮断部５７の前面に、スリット状の熱遮断溝５８を形成して、当該熱遮断溝５８を熱遮断構造とした。 (Embodiment 6) Figs. 14 and 15 show a small electric device (beauty appliance) according to Embodiment 6 of the present invention, in which the joint structure between the battery charging IC 33 and the heat sink 9 is changed. In Example 6, the charging circuit 32 and the battery charging IC 33 are arranged in the charging mounting area R under the control board 6 . In addition, a heat receiving portion 45 and a heat blocking portion 57 having small vertical dimensions are provided on one side of the lower portion of the heat radiating portion 44, and the battery charging IC 33 and the heat receiving portion 45 are connected by a vertically elongated copper heat transfer tool 80, so that the battery charging IC 33 is conducted to the heat receiving portion 45 by the heat transfer tool 80. The upper end of the strip-shaped heat transfer tool 80 is fastened to the heat receiving part 45 with a screw 81 , and the lower part of the heat transfer tool 80 is fastened to the control board 6 with a screw 54 and a nut 82 . The thickness of the heat transfer tool 80 is set thinner than the front-rear thickness of the heat receiving part 45 , and the lateral width of the heat transfer tool 80 is set smaller than the lateral width of the heat receiving part 45 . Also, a slit-shaped heat shielding groove 58 is formed in the front surface of the heat shielding portion 57, and the heat shielding groove 58 has a heat shielding structure.

実施例６の接合構造によれば、電池充電ＩＣ３３の熱を伝熱具８０で受熱部４５へ伝導できるので、２次電池５が繰返し充電される場合でも、電池充電ＩＣ３３の機能が劣化するのを防止して、２次電池５の充電を効率良く行うことができる。また、伝熱具８０の厚みを受熱部４５の前後厚みより薄く設定したので、受熱部４５が充電用実装領域Ｒにまで連出されている場合に比べて、ヒートシンク９の重量を小さくでき、その分だけ持重りのしない美容器具を提供できる。 According to the joint structure of the sixth embodiment, the heat of the battery charging IC 33 can be conducted to the heat receiving portion 45 by the heat transfer member 80. Therefore, even when the secondary battery 5 is repeatedly charged, the function of the battery charging IC 33 is not deteriorated. can be prevented, and the secondary battery 5 can be efficiently charged. Further, since the thickness of the heat transfer member 80 is set to be thinner than the front and rear thickness of the heat receiving portion 45, the weight of the heat sink 9 can be reduced compared to the case where the heat receiving portion 45 extends to the mounting area R for charging. It is possible to provide a beauty instrument that does not require a heavy weight.

実施例で説明した制御基板６は、ガラス系の絶縁基材で形成することが多いが、必要があれば、アルミニウム板材の表面に絶縁層と銅の配線層を形成した熱伝導性に優れた金属基板や、さらに放熱特性が大きなセラミック基板で形成することができる。位置決め凹部５０および位置決めリブ５１の断面形状はＶ字状に形成する必要はなく、矩形や半円形など任意の形状に形成することができる。また、締結体５４はビスである必要はなく、ボルトやリベットであってもよい。本発明は美容器具以外に、熱電変換素子を備えた温熱治療器（小型電気機器）に適用することができる。 The control board 6 described in the embodiments is often formed of a glass-based insulating base material. It can be formed of a metal substrate or a ceramic substrate having a high heat dissipation property. The cross-sectional shapes of the positioning recesses 50 and the positioning ribs 51 do not have to be V-shaped, and can be formed in any shape such as a rectangle or a semi-circle. Further, the fastening bodies 54 do not have to be screws, and may be bolts or rivets. INDUSTRIAL APPLICABILITY The present invention can be applied not only to beauty instruments but also to thermotherapy devices (small electric devices) having thermoelectric conversion elements.

１本体ケース
２ヘッド部
３前熱刺激体（刺激付与体）
４後熱刺激体（刺激付与体）
５２次電池
６制御基板
８熱電変換素子
９ヒートシンク
１０伝熱体
１３シンク開口
１４前装着座
１５後開口
１６後装着座
１９バイブレーター
２０ホルダー枠
２１グリップ電極
３２充電回路
３３電池充電ＩＣ
３６素子接合座
４３放熱フィン
４４放熱部
４５受熱部
４６素子接合座
５４締結体（ビス）
５７熱遮断部
５８熱遮断穴
７７受熱凹部
８０伝熱具 1 main body case 2 head section 3 pre-thermal stimulator (stimulation imparting body)
4 Post-thermal stimulator (irritator)
5 Secondary Battery 6 Control Board 8 Thermoelectric Conversion Element 9 Heat Sink 10 Heat Conductor 13 Sink Opening 14 Front Mounting Seat 15 Rear Opening 16 Rear Mounting Seat 19 Vibrator 20 Holder Frame 21 Grip Electrode 32 Charging Circuit 33 Battery Charging IC
36 Element bonding seat 43 Radiation fin 44 Heat radiation part 45 Heat receiving part 46 Element bonding seat 54 Fastener (screw)
57 heat shielding part 58 heat shielding hole 77 heat receiving recess 80 heat transfer tool

Claims

A thermoelectric conversion element (8), a stimulation imparting body (3) joined to the front surface of the thermoelectric conversion element (8), and a rear surface of the thermoelectric conversion element (8) a skin stimulation structure is disposed with a heat sink (9) bonded thereto;
The main body case (1) is configured in a hollow case shape by joining a front case (1a) and a rear case (1b) that are divided into front and rear parts.
A sink opening (13) is opened in the front case (1a) of the head part (2) of the main body case (1), and the stimulating body (3) is arranged on the outer surface of the sink opening (13). 13) has a heat sink (9) on its inner surface,
While the rear case (1b) is joined to the front case (1a), it is fastened and fixed by a fastener (72) screwed into the stimulus imparting body (3) from the rear side of the rear case (1b). (3), the thermoelectric conversion element (8), and the heat sink (9) are integrated with the front case (1a) and the rear case (1b),
The thermoelectric conversion element (8) and the heat sink (9) in an integrated state are clamped and fixed between the stimulation applying body (3) and the rear case (1b),
Furthermore, the front case (1a) is clamped and fixed by the heat sink (9), the rear case (1b) and the stimulation applying body (3),
A small electric device, characterized in that a stimulator (3) is joined to a front case (1a) via a packing (39).

The stimulation body (3) is provided with a screw boss (37) for the fastener (72), and the rear case (1b) is provided with a fastening boss (18) connected to the screw boss (37),
A cylindrical boss (48) is formed in the heat sink (9) and penetrates in the front-rear direction,
The fastening boss (18) and the screw boss (37) are engaged and connected inside the cylindrical boss (48), and by screwing the fastener (72) inserted through the screw boss (37) into the fastening boss (18), 2. A small electric device according to claim 1, wherein the small electric device is fixed.

A stimulator (3) and a heat sink (9) are bonded to the outer and inner surfaces of the surrounding wall of the sink opening (13), respectively, so that the stimulator (3) and the heat sink (9) surround the sink opening (13). The wall is sandwiched inside and outside,
A positioning recess (50) that engages with the inner surface of the peripheral wall of the sink opening (13) and the heat sink (9) facing the same wall to position the heat sink (9) with respect to the front case (1a). Positioning ribs (51) are provided,
3. A peripheral wall of the sink opening (13) receives the fastening force of the fastener (72) acting on the stimulator (3) and the heat sink (9). Small electrical equipment.

A thermoelectric conversion element (8), a stimulation imparting body (3) joined to the front surface of the thermoelectric conversion element (8), and a rear surface of the thermoelectric conversion element (8) A skin irritation structure is arranged with a heat sink (9) bonded thereto;
A rear stimulation body (4) is placed on the rear surface of the head part (2) of the main body case (1), and heat from a heat sink (9) is applied to the inner surface of the rear stimulation body (4). is provided with a heat transfer body (10) that conducts to the stimulation applying body (4) of
4. A small electrical device according to any one of claims 1 to 3, characterized in that a vibrator (19) for generating vibration is arranged on the inner surface of the stimulator (4).

The heat transfer body (10) has a partially spherical shell-shaped main body (10a) that is in close contact with the inner surface of the stimulation applying body (4) on the rear side, and a heat sink (9 ) is integrally provided with a plurality of heat-receiving shafts (10b) that conduct the heat of the main body (10a),
A vibrator (19) is attached to a holder frame (20) provided on the inner surface of the stimulator (4) on the rear side, and the vibrator (19) and the holder frame (20) are placed in the center of the main body (10a). 5. A small electrical device according to any one of claims 1 to 4, characterized in that it is located on the inner surface side of the heat transfer body (10) through the relief opening (69) formed.