JPH058776Y2 - - Google Patents
Info
- Publication number
- JPH058776Y2 JPH058776Y2 JP1985120746U JP12074685U JPH058776Y2 JP H058776 Y2 JPH058776 Y2 JP H058776Y2 JP 1985120746 U JP1985120746 U JP 1985120746U JP 12074685 U JP12074685 U JP 12074685U JP H058776 Y2 JPH058776 Y2 JP H058776Y2
- Authority
- JP
- Japan
- Prior art keywords
- cooling air
- cover
- axial direction
- center
- outer circumference
- 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 - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
Landscapes
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】
〔考案の属する技術分野〕
この考案は外面通風形回転電機において、内部
の温度分布を均一に冷却することができるように
改良したものに関する。[Detailed description of the invention] [Technical field to which the invention pertains] This invention relates to an externally ventilated rotating electrical machine that is improved so that the internal temperature distribution can be cooled uniformly.
外面通風形回転電機の従来例を第４図にもとづ
いて説明する。この図は外扇形回転電機を示し、
電機本体は円筒状フレーム１とその外周を包囲す
る通風カバー２との間に外扇３による冷却風を軸
方向に通して冷却される。このような構造では内
部発生熱が場所によつて異なりかつ冷却風が排気
側ほど高温となるので内部の温度分布が第５図に
示すように不均一となり、特に最高温度となる鉄
心部でコイル絶縁物の寿命を短くすることがある
という欠点があつた。
A conventional example of an external ventilation type rotating electric machine will be explained based on FIG. This figure shows an external fan-shaped rotating electric machine,
The main body of the electric machine is cooled by passing cooling air from an external fan 3 in the axial direction between a cylindrical frame 1 and a ventilation cover 2 surrounding the outer periphery thereof. In such a structure, the internal heat generated differs depending on the location, and the cooling air becomes hotter toward the exhaust side, so the internal temperature distribution becomes uneven as shown in Figure 5, and the coil temperature is particularly high in the iron core where the temperature is highest. The drawback was that it could shorten the life of the insulator.
この考案は前記の欠点を除去するために、内部
の温度分布を均一に冷却して最高温度を低くする
ことができるようにした外面通風形回転電機を提
供することを目的とする。
In order to eliminate the above-mentioned drawbacks, this invention aims to provide an externally ventilated rotating electrical machine that can uniformly cool the internal temperature distribution and lower the maximum temperature.
この考案は前記の目的を達成するために、円筒
状フレームの外周を包囲して取付けた通風カバー
の中央部に冷却風の吸入口を設け、この吸入口と
同一軸方向位置のカバー内周に前記冷却風を円周
上均一にかつ軸方向の左右に分配するエアガイド
を設けるようにしたものである。
In order to achieve the above-mentioned purpose, this invention provides a cooling air inlet in the center of a ventilation cover attached around the outer periphery of a cylindrical frame, and a cooling air inlet is provided on the inner periphery of the cover at the same axial position as this inlet. An air guide is provided to distribute the cooling air uniformly over the circumference and to the left and right in the axial direction.
第１図および第２図はこの考案の実施例を示す
もので、円筒状フレーム１１に外周を包囲する通
風カバー１２が取付けられ、このカバー１２の中
央部に冷却風の吸入口１８が設けられている。こ
の吸入口１３からは図示しない送風機で冷却風が
送り込まれ、前記フレーム１１の外周には中央部
を除き軸方向の放熱フイン１１ａが多数放射状に
設けられている。前記カバー１２の内周には冷却
風を円周上均一にかつ軸方向の左右に分配するエ
アガイド１４が吸気口１３と同一軸方向位置に設
けられ、このエアガイド１４で軸方向に向きを変
えた冷却風が隣接するフイン１１ａの間を通つて
フレーム１１を冷却するようになつている。カバ
ー１２の中央部はフレーム１１の取付脚１１ｂ等
で円周方向に流れる冷却風が漏出することのない
ようになつている。前記エアガイド１４は大量生
産品ではフレーム１１に設けてもよい。
1 and 2 show an embodiment of this invention, in which a ventilation cover 12 surrounding the outer periphery is attached to a cylindrical frame 11, and a cooling air inlet 18 is provided in the center of the cover 12. ing. Cooling air is sent from the suction port 13 by a blower (not shown), and a large number of axial heat dissipation fins 11a are radially provided on the outer periphery of the frame 11 except for the central portion. An air guide 14 is provided on the inner periphery of the cover 12 at the same axial position as the intake port 13, which distributes the cooling air uniformly over the circumference and to the left and right in the axial direction. The changed cooling air passes between adjacent fins 11a to cool the frame 11. The center portion of the cover 12 is designed to prevent the cooling air flowing in the circumferential direction from leaking due to the mounting legs 11b of the frame 11 and the like. The air guide 14 may be provided on the frame 11 in a mass-produced product.
前記実施例によれば冷却風をカバー１２の中央
部から軸方向の左右に分配して送り込むようにし
たので、第３図に示すように鉄心部の最高温度を
低くして内部の温度分布を均一化することができ
る。 According to the embodiment described above, since the cooling air is distributed from the center of the cover 12 to the left and right in the axial direction, the maximum temperature of the iron core is lowered to improve the internal temperature distribution, as shown in FIG. It can be made uniform.
前記実施例では放熱フイン付フレーム１１の場
合について説明したが、これに限定されるもので
はない。 Although the above embodiment describes the case of the frame 11 with heat dissipation fins, the present invention is not limited to this.
この考案によれば外面通風形回転電機におい
て、円筒状フレームの外周を包囲する通風カバー
の中央部から冷却風を円周上均一にかつ軸方向の
左右に分配して送り込むようにしたので、鉄心部
の最高温度を低くしてコイル絶縁物の寿命を延ば
すことができるという効果が得られる。
According to this invention, in an externally ventilated rotating electric machine, cooling air is sent from the center of the ventilation cover that surrounds the outer periphery of the cylindrical frame, uniformly on the circumference and distributed to the left and right in the axial direction, so that the iron core The effect is that the lifetime of the coil insulator can be extended by lowering the maximum temperature of the coil.
第１図はこの考案の実施例の正面図、第２図は
第１図の側面図、第３図は第１図および第２図の
内部温度分布図、第４図は従来例の正面図、第５
図は第４図の内部温度分布図である。
１１……フレーム、１２……カバー、１３……
吸入口、１４……エアガイド。
Figure 1 is a front view of the embodiment of this invention, Figure 2 is a side view of Figure 1, Figure 3 is an internal temperature distribution diagram of Figures 1 and 2, and Figure 4 is a front view of the conventional example. , 5th
The figure is an internal temperature distribution diagram of FIG. 4. 11...Frame, 12...Cover, 13...
Inlet port, 14...Air guide.
Claims (1)
放射状に設けた円筒状フレームに、外周を包囲す
る通風カバーを取付け、 このカバーの中央部に冷却風の吸入口を設ける
とともに、 この吸入口と同一軸方向のカバー内周に、冷却
風を円周上均一にかつ軸方向の左右に分配するエ
アガイドを設けたことを特徴とする外面通風形回
転電機。[Scope of Claim for Utility Model Registration] A ventilation cover surrounding the outer circumference is attached to a cylindrical frame with a large number of axial heat dissipation fins radially provided on the outer circumference except for the center part, and a cooling air inlet is provided in the center of this cover. An externally ventilated rotating electric machine characterized in that an air guide is provided on the inner periphery of the cover in the same axial direction as the suction port, and that distributes cooling air uniformly over the circumference and to the left and right in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985120746U JPH058776Y2 (en) | 1985-08-06 | 1985-08-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985120746U JPH058776Y2 (en) | 1985-08-06 | 1985-08-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6229743U JPS6229743U (en) | 1987-02-23 |
| JPH058776Y2 true JPH058776Y2 (en) | 1993-03-04 |
Family
ID=31009353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985120746U Expired - Lifetime JPH058776Y2 (en) | 1985-08-06 | 1985-08-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH058776Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0366609U (en) * | 1989-11-02 | 1991-06-28 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5793074U (en) * | 1980-11-28 | 1982-06-08 |
-
1985
- 1985-08-06 JP JP1985120746U patent/JPH058776Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6229743U (en) | 1987-02-23 |
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