JPS624836Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は、送風空気を、加熱し温風を送り出
す、熱交換器に関するものであり、ドライヤー、
熱風乾燥器，加熱空気を用いるヒーテイングパツ
ド，あるいは、塩化ビニールなどの熱風による、
溶着器などに用いられる熱交換器を、提供するも
のである。[Detailed description of the invention] The present invention relates to a heat exchanger that heats blown air and sends out hot air, and is applicable to dryers,
A hot air dryer, a heating pad using heated air, or hot air using vinyl chloride, etc.
The present invention provides a heat exchanger used in welders and the like.

第１図は、従来の熱交換器の一部断面斜視図
で、ケース１内に、２枚のマイカ板等を、十字に
組み合わせた巻き枠５とこの巻き枠５の外周に、
発熱線４を巻き付ける溝６を切つたものが使用さ
れているが、図示した矢印の空気流７が流れる。
すなわち、空気流７は空気流入口２と流出口３と
の間で、発熱線４よりも内側の巻き枠５の十字の
接続部分に沿つて流れる最短の距離に流れるた
め、発熱線４に少量の空気流７が流れることにな
る。この傾向は、熱交換器ケース１の内径が、流
入口２，流出口３の内径より大きければ大きいだ
け、又、空気圧が高ければ高いほど顕著に現われ
る。 FIG. 1 is a partially cross-sectional perspective view of a conventional heat exchanger. Inside a case 1, there is a winding frame 5 in which two mica plates or the like are combined in a cross shape, and on the outer periphery of this winding frame 5,
A groove 6 is cut in which the heating wire 4 is wound, and an air flow 7 shown by the arrow in the figure flows.
In other words, since the air flow 7 flows in the shortest distance between the air inlet 2 and the air outlet 3 along the cross-shaped connecting part of the winding frame 5 inside the heating wire 4, a small amount of air flows into the heating wire 4. The air flow 7 will flow. This tendency becomes more pronounced as the inner diameter of the heat exchanger case 1 becomes larger than the inner diameters of the inlet 2 and the outlet 3, and as the air pressure increases.

この様な空気流７が流れれば発熱線４に空気流
７が当らないため、発熱線４と空気との熱伝達が
悪く、冷たい空気が流出口３より流出し、発熱線
４は過熱され、発熱線４の寿命が短縮され、熱交
換器ケース１温度が上昇する、非常に熱効率の悪
い熱交換器となる。 If such an air flow 7 flows, the air flow 7 will not hit the heating wire 4, so heat transfer between the heating wire 4 and the air will be poor, cold air will flow out from the outlet 3, and the heating wire 4 will be overheated. , the life of the heating wire 4 is shortened, and the temperature of the heat exchanger case 1 increases, resulting in a heat exchanger with very poor thermal efficiency.

本考案は、これらの弊害を除くことができるも
ので図に依つて説明すると、第２図は、本考案の
加熱体の斜視図。第３図は、第２図の加熱体を、
ケース１内に組み込んだ側断面図である。 The present invention can eliminate these disadvantages and will be explained with reference to the drawings. Fig. 2 is a perspective view of the heating body of the present invention. Figure 3 shows the heating body in Figure 2,
FIG. 2 is a side cross-sectional view of the case 1 incorporated into the case 1. FIG.

発熱線４の巻き枠５は、マイカ板などでなり、
周辺に、発熱線４を係止する溝６をつけたもの２
枚を、十字に組み合わせて組みたてたもので、巻
き枠５の一方側端面に、金属製の半球形をした前
分流板９と、他方側端面に、金属製の半球形の後
分流板１０をつけることにより、空気流１１は、
発熱線４に当るため、発熱線４の熱エネルギー
は、空気流１１に効率よく熱交換されることで、
流出口３よりは高温空気流が得られる。 The winding frame 5 of the heating wire 4 is made of mica plate or the like.
2 with a groove 6 around the periphery for locking the heating wire 4
A metal hemispherical front flow divider plate 9 is attached to one end face of the reel 5, and a metal hemispherical rear flow divider plate is attached to the other end face of the winding frame 5. By adding 10, the air flow 11 becomes
Since it hits the heating wire 4, the thermal energy of the heating wire 4 is efficiently heat exchanged with the air flow 11,
A high temperature air flow is obtained from the outlet 3.

すなわち、流入口２からケース１内に流入され
る空気流１１は、第４図の矢印で示すように、前
分流板９に当たると、その前分流板９の半球面に
沿つて放射状に進み、巻き枠５に巻着された発熱
線４に向けて直進する。 That is, when the air flow 11 flowing into the case 1 from the inlet 2 hits the front flow divider plate 9, it travels radially along the hemispherical surface of the front flow divider plate 9, as shown by the arrow in FIG. It moves straight toward the heating wire 4 wound around the winding frame 5.

この際、巻き枠５の軸方向、すなわち、巻き枠
５の十字の接続部分には、空気流１１が前分流板
９に阻止されてほとんど流れない。 At this time, the airflow 11 is blocked by the front flow divider plate 9 and hardly flows in the axial direction of the winding frame 5, that is, in the cross-shaped connecting portion of the winding frame 5.

第４図は、前分流板９の取り付け状態を示す側
面図。第５図は、前分流板９の斜視図で、半球面
の凸状部で空気流が等分に分散する様になつた半
球殻で、金属板で形成したものである。円周部に
４ケ所，切り欠きカシメ片１２を成形した個所
は、円周の４等分の位置にあり、発熱線４の巻き
枠５の端部を、前分流板９の切り欠きカシメ片１
２でカシメる。よつて前分流板９は、２枚の巻き
枠５が、ばらばらにならない様固定する役目も兼
ねる。 FIG. 4 is a side view showing how the front flow dividing plate 9 is attached. FIG. 5 is a perspective view of the front flow divider plate 9, which is a hemispherical shell made of a metal plate and has a hemispherical convex portion so that the airflow is evenly distributed. The four notched caulking pieces 12 are formed on the circumference at four equal positions on the circumference, and the ends of the winding frame 5 of the heating wire 4 are attached to the notched caulking pieces of the front flow dividing plate 9. 1
Caulk with 2. Therefore, the front flow dividing plate 9 also serves to fix the two winding frames 5 so that they do not come apart.

第６図は、後分流板１０の斜視図。第７図は、
他の実施例を示す組合わせ後分流板１５の斜視
図。第８図は、後分流板の取り付け状態を示す側
面図を示す。後分流板１０は、半球形殻の中央部
に第６図の如く、発熱線４の巻き枠５の端部を、
後分流板１０を取り付ける為、金属製のカシメ片
１３を形成したカシメ具を凸出するか、第７図の
如く、カシメ具１４と後分流板１０を、別々に製
作し、スポツト溶接又は、リベツトにて、カシメ
具１４と後分流板１０を一体となした組合わせ後
分流板１５を、第８図に示す如く、巻き枠５の端
部にカシメて取り付ける。以上、実施例により説
明したように、本考案の熱交換器によれば、空気
流１１が前分流が進むため、熱交換交率がよくな
る。さらに、後分流板の役目は、前分流板９によ
り、発熱線４近傍を流れる空気流がほとんどであ
るが、中には、加熱器の中心部へ流れこもうとし
ても、後分流板１０が有る為、中心部は、円筒周
辺に比較して流速が遅い為流れ込めない。又中心
部へ流れ込んだ空気流も後分流板表面に沿つて流
れ、撹拌して、均一空気流となる。 FIG. 6 is a perspective view of the rear flow divider plate 10. Figure 7 shows
FIG. 7 is a perspective view of a combined flow dividing plate 15 showing another embodiment. FIG. 8 shows a side view showing how the rear flow divider plate is attached. As shown in FIG. 6, the rear flow dividing plate 10 has an end portion of the winding frame 5 of the heating wire 4 in the center of the hemispherical shell.
In order to attach the rear flow divider plate 10, a caulking tool with a metal caulking piece 13 formed thereon may be protruded, or the caulking tool 14 and the rear flow divider plate 10 may be manufactured separately and spot welded or, as shown in FIG. As shown in FIG. 8, the combined post-distribution plate 15, which is made up of the caulking tool 14 and the post-distribution plate 10, is attached by caulking to the end of the winding frame 5 using rivets. As described above with reference to the embodiments, according to the heat exchanger of the present invention, the air flow 11 is pre-divided, so that the heat exchange coefficient is improved. Furthermore, the role of the rear flow divider plate is that the front flow divider plate 9 mostly directs the airflow flowing near the heating wire 4, but even if some air tries to flow into the center of the heater, the rear flow divider plate 10 Because of this, the flow rate in the center is slower than in the periphery of the cylinder, so it cannot flow into the center. In addition, the airflow flowing into the center also flows along the surface of the rear flow divider plate and is stirred to become a uniform airflow.

又、前分流板同様、２枚の巻き枠５の支持金具
の役目もしている。 Also, like the front flow divider plate, it also serves as a support fitting for the two winding frames 5.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、従来の熱交換器の一部断面斜視図。
第２図は、本考案の加熱体実施例を示す斜視図。
第３図は、第２図の加熱体をケース内に組み込ん
だ側断面図。第４図は、前分流板の取付け状態を
示す側面図。第５図は、前分流板の斜視図。第６
図は、後分流板の斜視図。第７図は、後分流板の
他の実施例を示す斜視図。第８図は、後分流板の
取り付け状態を示す側面図である。 第１図〜第８図において、１……ケース、４…
…発熱線、５……巻き枠、９……前分流板、１０
……後分流板である。 FIG. 1 is a partially sectional perspective view of a conventional heat exchanger.
FIG. 2 is a perspective view showing an embodiment of the heating body of the present invention.
FIG. 3 is a side sectional view of the heating element shown in FIG. 2 incorporated into a case. FIG. 4 is a side view showing the state in which the front flow dividing plate is attached. FIG. 5 is a perspective view of the front flow divider plate. 6th
The figure is a perspective view of the rear flow divider plate. FIG. 7 is a perspective view showing another embodiment of the rear flow divider plate. FIG. 8 is a side view showing how the rear flow divider plate is attached. In Figures 1 to 8, 1...case, 4...
...Heating wire, 5... Winding frame, 9... Front flow divider plate, 10
...This is a rear flow diverter plate.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 空気の流入口２と流出口３を備えたケース１
と、このケース１内に板状かつ側面が十字に組み
合わされた巻き枠５を設け、この巻き枠５の長手
方向に巻着した発熱線４と、前記巻き枠５の側面
十字端面両側に、空気流方向に対向する面が、ほ
ぼ球面凸状部を有する前分流板９と、後分流板１
０を設けた熱交換器。 Case 1 equipped with air inlet 2 and air outlet 3
A plate-shaped winding frame 5 having a cross-shaped side surface is provided in the case 1, a heating wire 4 is wound around the winding frame 5 in the longitudinal direction, and a front flow dividing plate 9 and a rear flow dividing plate 1 are provided on both sides of the cross-shaped end surface of the winding frame 5, the surfaces of which facing the air flow direction have a substantially spherical convex portion.
A heat exchanger with 0.