JPH025656Y2 - - Google Patents
Info
- Publication number
- JPH025656Y2 JPH025656Y2 JP1981100890U JP10089081U JPH025656Y2 JP H025656 Y2 JPH025656 Y2 JP H025656Y2 JP 1981100890 U JP1981100890 U JP 1981100890U JP 10089081 U JP10089081 U JP 10089081U JP H025656 Y2 JPH025656 Y2 JP H025656Y2
- Authority
- JP
- Japan
- Prior art keywords
- commutator
- axial direction
- supports
- ventilation
- rocker ring
- 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
Links
- 238000009423 ventilation Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Description
【考案の詳細な説明】
この考案は直流機とくに整流子外周部の通風の
改善に関するものである。[Detailed description of the invention] This invention relates to improving ventilation in a DC machine, particularly around the outer circumference of a commutator.
第1図、第2図はこの種装置の従来例を示すも
ので、図において1は回転軸、2は回転軸1に支
持される整流子、3は整流子2の外周面に接触
し、整流子2を介して図示されない電機子コイル
に給電するブラシ、4はブラシ3を摺動自在に保
持するブラシホルダ、5はブラシホルダ4を軸方
向に支持する支持棒、6は支持棒5を支持し、ブ
ラシ3を円周方向に移動させるロツカリングで、
第2図に示すように扁平なドーナツ状をしてい
る。7は軸受8を介して回転軸1を支持する整流
子側ブラケツト、7aは整流子側ブラケツト7に
形成された通風孔で、ロツカリング6は整流子2
ならびに通風孔7aに近接した位置でブラケツト
7に支持される。9は回転軸1の端部に支持さ
れ、内部で発生した熱を通風孔7aから排出する
排気フアン、10は排気フアン9をおおい、排気
口10aを設けたフアンカバーである。 1 and 2 show conventional examples of this type of device, in which 1 is a rotating shaft, 2 is a commutator supported by the rotating shaft 1, 3 is in contact with the outer peripheral surface of the commutator 2, A brush supplies power to an armature coil (not shown) through the commutator 2, 4 is a brush holder that slidably holds the brush 3, 5 is a support rod that supports the brush holder 4 in the axial direction, and 6 is the support rod 5. A rocker ring that supports and moves the brush 3 in the circumferential direction,
As shown in Figure 2, it has a flat donut shape. 7 is a commutator side bracket that supports the rotating shaft 1 via a bearing 8, 7a is a ventilation hole formed in the commutator side bracket 7, and a rocker ring 6 is a commutator side bracket that supports the rotating shaft 1 through a bearing 8.
It is also supported by the bracket 7 at a position close to the ventilation hole 7a. Reference numeral 9 designates an exhaust fan that is supported at the end of the rotating shaft 1 and exhausts heat generated inside through the ventilation hole 7a. Reference numeral 10 designates a fan cover that covers the exhaust fan 9 and is provided with an exhaust port 10a.
以上のように構成され、運転時に電機子(図示
せず)ならびに整流子2等に発生した熱は、排気
フアン9の風圧により反整流子側の吸気口(図示
せず)より吸引された冷却風により冷却され、矢
印により示される通路を通つて通風孔7aおよび
排気口10aから排出される。このとき、ドーナ
ツ状のロツカリング6が整流子2部分を通過した
冷却風の流れを邪魔する状態となり、この部分で
冷却風が滞留して熱が円滑に排出されない欠点が
あつた。 With the above structure, the heat generated in the armature (not shown) and commutator 2, etc. during operation is cooled by suction from the air intake port (not shown) on the side opposite to the commutator by the wind pressure of the exhaust fan 9. It is cooled by the wind and discharged from the ventilation hole 7a and the exhaust port 10a through the passage indicated by the arrow. At this time, the donut-shaped rocker ring 6 obstructs the flow of cooling air that has passed through the commutator 2 portion, resulting in the drawback that the cooling air remains in this portion and heat cannot be smoothly discharged.
この考案は以上のような従来のものの欠点を改
善することを目的とするものである。 The purpose of this invention is to improve the drawbacks of the conventional ones as described above.
以下、この考案の一実施例を第3図により説明
する。図において、第1図、第2図と同一符号は
同一または相当部分を示し、11はロツカリング
6の支持棒5の支持部間に位置して形成された複
数個の通風孔である。 An embodiment of this invention will be described below with reference to FIG. In the figure, the same reference numerals as in FIGS. 1 and 2 indicate the same or corresponding parts, and reference numeral 11 indicates a plurality of ventilation holes formed between the support parts of the support rod 5 of the rocker ring 6.
以上のように従来通風を阻害していたロツカリ
ング6に複数個の通風孔10を設けたので風路面
積を増大させることができるとともに冷却風が回
転軸1の軸方向に一直線に流れることにより冷却
効率を高めることができる。 As described above, since a plurality of ventilation holes 10 are provided in the rocker ring 6, which conventionally obstructs ventilation, the air passage area can be increased, and the cooling air flows in a straight line in the axial direction of the rotating shaft 1, resulting in cooling. Efficiency can be increased.
上記実施例においては、ロツカリング6に複数
個の通風孔11を設けたものを示したが、これに
限るものではなく、強度が許せば複数個のものを
連結して単一の通風孔としても同様の効果をうる
ことができる。 In the above embodiment, the rocker ring 6 is provided with a plurality of ventilation holes 11, but it is not limited to this, and if the strength allows, a plurality of ventilation holes may be connected to form a single ventilation hole. A similar effect can be obtained.
この考案は以上説明したとおり、ブラシを支持
する支持棒を支持したドーナツ状のロツカリング
に、支持棒の支持部間に位置して複数個の通気孔
を形成し、通風路としたことから、ロツカリング
と整流子間の風路面積を増大させて風路抵抗を低
下させることができることとなり、冷却風量が増
大して冷却効率が向上し、これにより直流機の小
型化と、ロツカリングの材料の節減が可能になる
という効果がある。 As explained above, this device has a donut-shaped rocker ring that supports a support rod that supports a brush, and has multiple ventilation holes located between the support parts of the support rods to serve as ventilation channels. By increasing the air passage area between the commutator and the commutator, it is possible to reduce the air passage resistance, increasing the cooling air volume and improving the cooling efficiency. This has the effect of making it possible.
第1図、第2図は従来例を示し、第1図は要部
の通風状態を示す縦断面図、第2図はロツカリン
グの正面図、第3図はこの考案の一実施例を示す
正面図である。
図において、同一符号は同一または相当部分を
示し、2は整流子、3はブラシ、6はロツカリン
グ、7は整流子側ブラケツト、7aは通風孔、1
0aは排気口、11は通風孔である。
Fig. 1 and Fig. 2 show a conventional example, Fig. 1 is a longitudinal sectional view showing the ventilation condition of the main part, Fig. 2 is a front view of the rocker ring, and Fig. 3 is a front view showing an embodiment of this invention. It is a diagram. In the figures, the same reference numerals indicate the same or equivalent parts, 2 is the commutator, 3 is the brush, 6 is the rocker ring, 7 is the commutator side bracket, 7a is the ventilation hole, 1
0a is an exhaust port, and 11 is a ventilation hole.
Claims (1)
から吸収され整流子側ブラケツトの軸方向に設け
られた通風孔より排出される冷却風により軸方向
に排出する直流機において、ブラシ保持用のブラ
シホルダーを軸方向に支持する支持棒と、上記支
持棒を支持し上記整流子側ブラケツトの通風孔に
近接して設けられ、上記ブラシを円周方向に移動
させるドーナツ状のロツカリングとを有し、上記
ロツカリングの上記支持棒の支持部間に位置して
複数個の通風孔を形成し、上記冷却風を軸方向に
一直線に流すことを特徴とする直流機。 For holding brushes in DC machines where heat generated in the armature and commutator is absorbed from the side opposite to the commutator and discharged in the axial direction by cooling air discharged through ventilation holes provided in the axial direction of the commutator side bracket. a support rod that supports the brush holder in the axial direction; and a donut-shaped rocker ring that supports the support rod, is provided in close proximity to the ventilation hole of the commutator side bracket, and moves the brush in the circumferential direction. A DC machine characterized in that a plurality of ventilation holes are formed between the support portions of the support rods of the rocker ring, and the cooling air flows in a straight line in the axial direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10089081U JPS589058U (en) | 1981-07-07 | 1981-07-07 | dc machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10089081U JPS589058U (en) | 1981-07-07 | 1981-07-07 | dc machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS589058U JPS589058U (en) | 1983-01-20 |
JPH025656Y2 true JPH025656Y2 (en) | 1990-02-09 |
Family
ID=29895566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10089081U Granted JPS589058U (en) | 1981-07-07 | 1981-07-07 | dc machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS589058U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01123023U (en) * | 1988-02-09 | 1989-08-22 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129604A (en) * | 1975-05-07 | 1976-11-11 | Agency Of Ind Science & Technol | Cooling device for rotary electric machine |
-
1981
- 1981-07-07 JP JP10089081U patent/JPS589058U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129604A (en) * | 1975-05-07 | 1976-11-11 | Agency Of Ind Science & Technol | Cooling device for rotary electric machine |
Also Published As
Publication number | Publication date |
---|---|
JPS589058U (en) | 1983-01-20 |
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