JPH01264541A - Motor - Google Patents
MotorInfo
- Publication number
- JPH01264541A JPH01264541A JP63088726A JP8872688A JPH01264541A JP H01264541 A JPH01264541 A JP H01264541A JP 63088726 A JP63088726 A JP 63088726A JP 8872688 A JP8872688 A JP 8872688A JP H01264541 A JPH01264541 A JP H01264541A
- Authority
- JP
- Japan
- Prior art keywords
- sheath
- cover
- coil
- face
- outer cover
- 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.)
- Pending
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 238000010304 firing Methods 0.000 abstract 1
- 230000007257 malfunction Effects 0.000 abstract 1
- 230000000391 smoking effect Effects 0.000 abstract 1
- 230000005856 abnormality Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241001510071 Pyrrhocoridae Species 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、開放型小形電動機に関するものである。[Detailed description of the invention] Industrial applications The present invention relates to an open type small electric motor.
従来の技術
従来のこの神の電動機は特定の文献を挙げることはでき
ないが第３図および第４図に示すような構成であった。BACKGROUND OF THE INVENTION A conventional electric motor of this kind has a structure as shown in FIGS. 3 and 4, although no specific literature can be cited.
すなわぢ、軸受１０１を固定した回転子１０２が、通風
冷却を行なうために端面１０３に風穴１０４を設けた外
被１０５の、前記端面１０３中２ 、−
央部の軸受収納部１０６を塞ぐように固定されたプレー
ｌ−１０７により保持されている。また、１ｉｉＪ記外
被１０６の内周にはコイル１０８が巻かれた固定子１０
９が固定されている。In other words, the rotor 102 to which the bearing 101 is fixed closes the bearing accommodating portion 106 in the middle part of the end face 103 of the outer sheath 105, which has an air hole 104 in the end face 103 for ventilation cooling. It is held by a plate l-107 fixed to. Furthermore, the stator 10 has a coil 108 wound around the inner periphery of the jacket 106 described in 1iiJ.
9 is fixed.
」二記のように構成された電動機において、図示しない
ファンによシミ動機の周囲に生じた空気の流れが前記外
被１０５の一方の端面１０３に設けられた風穴１０４よ
り流入し、回転子１０２、固定子１０９等を冷却した後
、前記外被１０５の他方の端面１０３に設けられた風穴
１０４よシ流ＩＪ１する。このようにして、固定子１０
９に巻かれたコイル１０８の温度上昇値を低減するもの
であった。In the electric motor configured as described in Section 2 above, air flow generated around the stainer by a fan (not shown) flows through the air hole 104 provided in one end surface 103 of the outer cover 105, and the air flows through the rotor 102. After cooling the stator 109 and the like, the air flows through the air holes 104 provided on the other end surface 103 of the outer sheath 105. In this way, the stator 10
This was to reduce the temperature rise value of the coil 108 wound around the coil 108.
発明が解決しようとする課題
このような従来の構成では、通常運転中は問題ないが、
何らかの異常により回転子１０２が拘束された場合やコ
イル１０８がショー１−シた場合、コイル１０８の温反
上昇値が通常運転時に比へ非常に高くなり、発煙や発火
を寸ねくことになり、外被１０５端面１０３に設けられ
た風穴１０４よ３ ・・−／
９出火し、電動機の周囲の可燃物を燃焼し、火災°：士
：７：：Ｎ二”ｌｒｔ［ｋＷ（＊−ｔｈ品、゛ ・
４
部品数を増加きせることなく異常時に外被１０５の端面
１０３の風穴１０４を塞ぎ、安全な電動機を安価に提供
することを目的とするものである。Problems to be Solved by the Invention With such a conventional configuration, there is no problem during normal operation, but
If the rotor 102 is restrained due to some kind of abnormality or if the coil 108 goes into a short circuit, the temperature rise value of the coil 108 will become extremely high compared to that during normal operation, and smoke or ignition will be on the verge of occurring. , air holes 104 provided on the end face 103 of the outer sheath 105 3...-/9 A fire broke out, burning the combustible materials around the motor, and causing a fire of 2"lrt[kW(*-th Goods, ゛・
4. It is an object of the present invention to provide a safe electric motor at a low cost by closing the air hole 104 in the end face 103 of the outer cover 105 in the event of an abnormality without increasing the number of parts.
課題を解決するための手段
この課題を解決するために本発明は、通風冷却用の風穴
を有した外被の端面中央部の軸受収納部 ゛を塞ぐとと
もに、前記外被が通常運転時よシ高庶になったとき、前
記風穴を覆う形状に変形する形状記憶合金で形成された
カバーを前記外被に固定してなる″ｌＦ動機を構成した
ものである。Means for Solving the Problems In order to solve this problem, the present invention covers a bearing storage section in the center of the end face of the outer cover having an air hole for ventilation cooling, and also prevents the outer cover from operating during normal operation. The "lF motive" is constructed by fixing to the outer cover a cover made of a shape memory alloy that deforms into a shape that covers the air hole when the air temperature rises.
作 用
この１４６成によシ、通常運転時は外被の端面に設けら
れた風穴の通風冷却効果を損なうことのない形状をなし
、そして何らかの異常によシ回転子が拘束されたり、コ
イルがショートした場合、通常運転量に比１咬して外被
がいちじるしく高温になり、外被に固定され／こカバー
が熱伝〕息によシ高温になシ、゛記憶していた風穴を塞
ぐ形状に変形し、風穴からの発煙２発火を防ぎ、電動機
周囲の可燃物の燃焼を防止することとなる。Due to this 146 structure, during normal operation, the shape is such that the ventilation cooling effect of the ventilation holes provided on the end face of the outer jacket is not impaired, and in the event of some abnormality, the rotor is restrained or the coil is In the event of a short circuit, the outer cover becomes extremely hot compared to the normal operating amount, and is fixed to the outer cover. This deforms the shape, prevents smoke from emitting from the vents, and prevents combustible materials from burning around the motor.
実施例
以下本発明の一実施例を第１図および第２図にもとづい
て説明する。図において１は軸受２を固定した回転子で
あシ、通風冷却を行なうために端面３に風穴４を設けた
外被５の、前記ｉ面３中央部の軸受収納部６を塞ぐよう
に外被５に当接して固定され別カバー７により保持され
ている。また外被５の内周にはコイル８が巻かれた固定
子９が固定されている。これらの（（“４成は従来の電
動機と大同小異である。EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, reference numeral 1 denotes a rotor to which a bearing 2 is fixed, and the outer sheath 5 has an air hole 4 provided at the end face 3 for ventilation cooling, and the outer cover 5 has an outer cover 5 that covers the bearing accommodating portion 6 in the center of the i-plane 3. It is fixed in contact with the cover 5 and is held by another cover 7. Further, a stator 9 having a coil 8 wound thereon is fixed to the inner periphery of the outer cover 5. These (("4-component motors are the same and slightly different from conventional electric motors.
本発明の特徴は以下の点にある。すなわち、前記カバー
７が形状記憶合金で形成され、一定の温度以上の高温で
記憶していた形状に変形することにある。通常運転時に
は従来と同様に電動機の周囲に生じた空気の流れが前記
外被５の端面３に設けられ／こ風穴４よシ流入し、回転
子１、固定子９等を冷却し／ζ後、ＤｉＪ記外被５の他
端面３に設けら５ ・、−７
れた風穴４より流出する。したがって、固定子９に巻か
れたコイル８の温度上昇値を低減することができる。何
らかの異常によシ、回転子１が拘束されたり、コイル８
がショーｊ・した等の場合、通常運転１１．９に比較し
、前記外被５、コイル８等がいちじるしく高温になシ、
外被５に当接して固定されたカバー７が熱伝導によシ高
温とな）、ある−定収上の温度で記憶していた形状に変
形したカバー７は、前記外被５端面３の風穴４を覆い、
コイル８等の燃焼による風穴からの発煙１発火を防止す
ることができる。The features of the present invention are as follows. That is, the cover 7 is formed of a shape memory alloy and deforms into the memorized shape at a high temperature above a certain temperature. During normal operation, the air flow generated around the electric motor is provided on the end face 3 of the outer cover 5 as in the conventional case and flows through the air holes 4 to cool the rotor 1, stator 9, etc. , -7 flows out from the air holes 4 provided on the other end surface 3 of the DiJ jacket 5. Therefore, the temperature rise value of the coil 8 wound around the stator 9 can be reduced. Due to some abnormality, the rotor 1 may be restricted or the coil 8
In the case of a show, etc., the outer sheath 5, coil 8, etc. become significantly hotter than in normal operation 11.9.
The cover 7, which is fixed in contact with the outer cover 5, becomes high temperature due to heat conduction), and the cover 7, which has been deformed into the memorized shape at a temperature above a certain temperature, is exposed to the air hole in the end surface 3 of the outer cover 5. Cover 4,
It is possible to prevent smoke from being emitted from the air hole due to combustion of the coil 8 and the like.
以」二のように本実施例によれば、形状記憶合金で形成
されたカバー７によシ、異常時に風穴４を塞ぐことによ
って電動機周囲の可燃物の燃焼を防止することができる
。As described above, according to this embodiment, the cover 7 made of a shape memory alloy can prevent the combustion of combustible materials around the motor by blocking the air hole 4 in the event of an abnormality.
発明の効果
以上の実施例の説明よシ明らかなように本発明によれば
、形状記憶合金で形成されたカバーで、外被゛のψＮ、
；面中央部の１ｌｌｌＩ＋受収納部を塞ぐとともに、あ
る−足取」二の温度で変形して外被端面の風穴を６ ・
、−７
塞ぐことにより、部品点数、組立作業を増加させること
なく、安価で安全な電動機を提供することができるとい
う効果が得られる。Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, with a cover formed of a shape memory alloy, ψN of the outer cover,
In addition to blocking the receiving storage part in the center of the surface, it deforms at a temperature of 1-2 feet and opens the air holes in the end surface of the jacket.
, -7, it is possible to provide an inexpensive and safe electric motor without increasing the number of parts or assembly work.
第１図は本発明の一実施例の７に動機の断面図、第２図
は同電動機の平面図、第３図は従来の電動機の断面図、
第４図は同電動機の平面図である。
３・・・・・・端面、４・・・ ・風穴、５・・・・外
被、６・・・・軸受収納部、７・・・・−カバー。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名５−
−−クトネ及
ｃ−−−４匂す米？′すｄゾ」プＦｌ’第３図
ｓ４図FIG. 1 is a sectional view of a motor according to an embodiment of the present invention, FIG. 2 is a plan view of the motor, and FIG. 3 is a sectional view of a conventional motor.
FIG. 4 is a plan view of the electric motor. 3... End face, 4... Air hole, 5... Outer cover, 6... Bearing housing, 7... Cover. Name of agent: Patent attorney Toshio Nakao and 1 other person5-
--Kutone and c---4 Smell rice? Figure 3 s4
Claims (1)
納部を塞ぐとともに、前記外被が通常運転時より高温に
なったとき、前記風穴を覆う形状に変形する形状記憶合
金で形成されたカバーを前記外被に固定してなる電動機
。The housing is made of a shape memory alloy that closes the bearing housing in the center of the end face of the outer cover having air holes for ventilation cooling, and deforms into a shape that covers the air holes when the outer cover becomes hotter than during normal operation. An electric motor comprising a cover fixed to the outer cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63088726A JPH01264541A (en) | 1988-04-11 | 1988-04-11 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63088726A JPH01264541A (en) | 1988-04-11 | 1988-04-11 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01264541A true JPH01264541A (en) | 1989-10-20 |
Family
ID=13950917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63088726A Pending JPH01264541A (en) | 1988-04-11 | 1988-04-11 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01264541A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008253473A (en) * | 2007-04-04 | 2008-10-23 | Matsushita Electric Ind Co Ltd | Twin tub washing machine |
| US20110156507A1 (en) * | 2009-12-24 | 2011-06-30 | Industrial Technology Research Institute | Hub Motor |
-
1988
- 1988-04-11 JP JP63088726A patent/JPH01264541A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008253473A (en) * | 2007-04-04 | 2008-10-23 | Matsushita Electric Ind Co Ltd | Twin tub washing machine |
| JP4613925B2 (en) * | 2007-04-04 | 2011-01-19 | パナソニック株式会社 | Two tank washing machine |
| US20110156507A1 (en) * | 2009-12-24 | 2011-06-30 | Industrial Technology Research Institute | Hub Motor |
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