JP3922319B2 - Explosion-proof rotary electric machine - Google Patents
Explosion-proof rotary electric machine Download PDFInfo
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- JP3922319B2 JP3922319B2 JP33123297A JP33123297A JP3922319B2 JP 3922319 B2 JP3922319 B2 JP 3922319B2 JP 33123297 A JP33123297 A JP 33123297A JP 33123297 A JP33123297 A JP 33123297A JP 3922319 B2 JP3922319 B2 JP 3922319B2
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- Prior art keywords
- detector
- explosion
- terminal block
- proof
- machine frame
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Description
【０００１】
【発明の属する技術分野】
本発明は、爆発雰囲気で使用される耐圧防爆形回転電機に関するものである。
【０００２】
【従来の技術】
従来の耐圧防爆形回転電機は、図２に示すように構成されている。
図において、２０は耐圧防爆形構造の回転電機の機枠で、この機枠２０の端面にブラケット２１が固定されている。２２は固定子鉄心で、この固定子鉄心２２に固定子巻線２３を巻装し、前記機枠２０内に取付けてある。２４は前記ブラケット２１に取付けた軸受２５に支持された回転軸である。２６は前記回転軸２３に固定された回転子、２７は前記固定子巻線２３と外部の電線（図示せず）と接続する端子台２７ａを収納する端子箱で、耐圧防爆形構造に構成し前記機枠２０に載置して固定してある。２８は前記反負荷側のブラケット２１に固定された耐圧構造に構成した検出器容器で、内部に検出器２９が収納され、この検出器２９を前記回転軸２４の反負荷側の軸端に連結してある。３０は検出器の端子箱で、耐圧防爆形構造に構成し前記検出器容器２８に載置して固定し、前記検出器２９の検出巻線を外部の制御装置（図示せず）に接続する端子台３０ａが設けられている。
【発明が解決しようとする課題】
従来の耐圧防爆形回転電機は、機枠、端子箱、検出器容器および検出器の端子箱は、耐圧防爆形構造に構成して別々の容器に収納して接合部は防爆スキマを設けて連結していた。このため外形寸法が大きくなり、質量も重いという欠点があった。
そこで、本発明は、軽量で、コンパクな耐圧防爆形回転電機を提供することを目的とする。
【０００４】
【課題を解決するための手段】
上記問題点を解決するために、本発明は耐圧防爆構造にした機枠に収納した固定子巻線を有する固定子鉄心と、前記機枠に軸受を介して取付けた回転軸に固定した回転子と、前記機枠に固定した端子台と、前記回転軸の軸端に取付けた検出器とを備えた耐圧防爆形回転電機において、前記機枠の外側に前記検出器と前記端子台を覆うカバー部材を設け、前記機枠内と前記検出器および前記端子台のそれぞれの収納空間を連通させるようにしている。
【０００５】
【発明の実施の形態】
以下本発明の実施例を図１〜図３に基づいて説明する。
図１は、本発明の実施例を示す耐圧防爆形回転電機の上半部の側断面図である。
図において、１は耐圧防爆形回転電機の機枠で、この機枠１の端面にブラケット２、３が固定され、上面に貫通穴１２が設けられている。４は固定子鉄心で、この固定子鉄心４に固定子巻線５を巻装し、前記機枠１内に取付けてある。６は前記ブラケット２、３に取付けた軸受７に支持された回転軸である。８は前記回転軸６に固定された回転子。９は検出器で、前記回転軸６の反負荷側の軸端に連結してある。１０はカバー部材で、前記ブラケット３を囲い前記機枠１の外側に検出器９を覆って取付けてある。前記ブラケット３とカバー部材１０との間に設け、前記検出器９を覆う空間と端子台１１を取付けた空間とを連通する貫通穴１４が設けられている。１１はカバー部材１０の内面に取付けた端子台である。この端子台１１に前記固定子巻線５を外部の電線（図示せず）に接続するとともに、前記検出器９の検出巻線と外部の制御装置（図示せず）からの電線とを接続するようにしてある。１３はブラケット３の端面に設けた貫通穴で、機枠１の内部と検出器９を収納した空間とを連通するようにしてある。
このように構成した耐圧防爆形回転電機の組み立ては、機枠１に固定子巻線５を巻装した固定子鉄心４を収納固定し、回転子８を取付けた回転軸６をブラケット２、３の軸受７に固定する。つぎに、回転軸６の反負荷側の軸端に検出器９を取付ける。つぎにカバー部材１０を機枠１の外側に検出器９を覆って機枠１に固定する。前記機枠１に固定した固定子巻線４の端部と外部の電線の端部を端子台１１にねじ締め固定して固定子巻線４と外部の電線とを接続する。また、検出器９からの検出巻線の端部を貫通穴１４を通して端子台１１に接続する。したがって、機枠の内部と検出器９を収納した空間および端子台１１を取付けた空間とを連通させたので防爆スキマを設けることなく小形にすることができる。
【０００６】
【発明の効果】
以上述べたように本発明は、軽量で、コンパクトな耐圧防爆形回転電機を得ることができる。
【図面の簡単な説明】
【図１】 本発明の実施例を示す耐圧防爆形回転電機の上半部側断面図である。
【図２】 従来の耐圧防爆形回転電機の上半部側断面図である。
【符号の説明】
１ 機枠、 ２、３ ラケット、 ４ 固定子鉄心、 ５ 固定子巻線、
６ 回転軸、 ７ 軸受、 ８ 回転子、 ９ 検出器、 ８ａ 端子台、
９ 検出器、１０ カバー部材、 １２、１３、１４ 貫通穴 [0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pressure-proof explosion-proof rotating electrical machine used in an explosion atmosphere.
[0002]
[Prior art]
A conventional explosion-proof rotary electric machine is configured as shown in FIG.
In the figure,
[Problems to be solved by the invention]
The conventional explosion-proof rotary electric machine has a machine frame, terminal box, detector container, and detector terminal box constructed in a pressure-proof explosion-proof structure and housed in separate containers, and the joints are connected with explosion-proof clearance. Was. For this reason, there existed a fault that an external dimension became large and mass was also heavy.
Accordingly, an object of the present invention is to provide a lightweight and compact explosion-proof rotating electrical machine.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a stator core having a stator winding housed in a machine frame having a pressure and explosion proof structure, and a rotor fixed to a rotary shaft attached to the machine frame via a bearing. And a cover for covering the detector and the terminal block outside the machine frame in a flameproof explosion-proof rotating electrical machine comprising a terminal block fixed to the machine frame and a detector attached to the shaft end of the rotating shaft A member is provided so that the storage space in the machine casing communicates with the storage space of the detector and the terminal block.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to FIGS.
FIG. 1 is a side sectional view of an upper half portion of a pressure-proof explosion-proof rotating electrical machine showing an embodiment of the present invention.
In the figure, reference numeral 1 denotes a machine frame of a pressure-proof explosion-proof rotating electrical machine. Brackets 2 and 3 are fixed to an end surface of the machine frame 1 and a through hole 12 is provided on an upper surface. Reference numeral 4 denotes a stator core, and a stator winding 5 is wound around the stator core 4 and attached to the machine frame 1. Reference numeral 6 denotes a rotating shaft supported by a bearing 7 attached to the brackets 2 and 3. Reference numeral 8 denotes a rotor fixed to the rotary shaft 6. Reference numeral 9 denotes a detector which is connected to the shaft end of the rotary shaft 6 on the side opposite to the load. A cover member 10 surrounds the bracket 3 and is attached to the outside of the machine casing 1 so as to cover the detector 9. A through hole 14 is provided between the bracket 3 and the cover member 10 to communicate the space covering the detector 9 and the space where the terminal block 11 is attached. Reference numeral 11 denotes a terminal block attached to the inner surface of the cover member 10. The stator winding 5 is connected to the terminal block 11 with an external electric wire (not shown), and the detection winding of the detector 9 and an electric wire from an external control device (not shown) are connected. It is like that. Reference numeral 13 denotes a through hole provided in the end surface of the bracket 3 so as to communicate the inside of the machine casing 1 with the space in which the detector 9 is accommodated.
In the assembly of the explosion-proof type rotating electrical machine configured as described above, the stator core 4 having the stator winding 5 wound around the machine frame 1 is housed and fixed, and the rotary shaft 6 to which the rotor 8 is attached is attached to the brackets 2, 3. The bearing 7 is fixed. Next, the detector 9 is attached to the shaft end of the rotating shaft 6 on the side opposite to the load. Next, the cover member 10 is fixed to the machine frame 1 by covering the detector 9 outside the machine frame 1. The end of the stator winding 4 fixed to the machine frame 1 and the end of the external electric wire are screwed and fixed to the terminal block 11 to connect the stator winding 4 and the external electric wire. Further, the end of the detection winding from the detector 9 is connected to the terminal block 11 through the through hole 14. Therefore, since the space inside the machine frame and the space in which the detector 9 is accommodated and the space in which the terminal block 11 is attached are communicated with each other, the size can be reduced without providing an explosion-proof clearance.
[0006]
【The invention's effect】
As described above, the present invention can provide a lightweight and compact explosion-proof type rotating electrical machine.
[Brief description of the drawings]
FIG. 1 is a side sectional view of an upper half portion of a pressure-proof explosion-proof rotating electric machine showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the upper half portion of a conventional explosion-proof rotary electric machine.
[Explanation of symbols]
1 machine frame, 2, 3 rackets, 4 stator core, 5 stator winding,
6 rotating shaft, 7 bearing, 8 rotor, 9 detector, 8a terminal block,
9 Detector, 10 Cover member, 12, 13, 14 Through hole
Claims (1)
前記機枠（１）の外側に、カバー部材（１０）を設け、
前記カバー部材（１０）は、前記反負荷側のブラケット（３）を囲い、かつ、前記反負荷側のブラケット（３）との間の空間に、前記検出器（９）と端子台（１１）を配置するとともに、前記端子台（１１）を、前記機枠（１）の反負荷側端部の傍らで、かつ前記反負荷側のブラケット（３）の径方向外側に位置する、前記カバー部材（１０）の内面に取り付け、前記機枠（１）内と前記検出器（９）および前記端子台（１１）のそれぞれの収納空間を貫通穴（１３），（１４），（１２）で連通させ、
前記検出器（９）の検出巻線の端部を、前記貫通穴（１４）に通して前記端子台（１１）に接続し、
前記端子台（１１）で、前記固定子巻線（５）を外部の電線に接続するとともに、前記検出器（９）の検出巻線を外部の制御装置からの電線に接続したことを特徴とする耐圧防爆形回転電機。 A frame (1 ) having a load-side bracket (2) fixed to one axial end portion and an anti-load-side bracket (3) fixed to the other axial end portion and having a flameproof structure. And a stator core (4) having a stator winding (5) housed in a rotor) (8) fixed to a rotating shaft (6) attached to the machine frame (1) via a bearing (7). And a flameproof explosion-proof rotating electrical machine comprising a detector (9) attached to the shaft end of the rotating shaft (6),
Outside the machine frame (1), provided with a cover member (10),
The cover member (10) surrounds the bracket (3) on the anti-load side, and in the space between the bracket (3) on the anti-load side, the detector (9) and the terminal block (11) And the terminal block (11) is located beside the anti-load side end of the machine frame (1) and outside the anti-load side bracket (3) in the radial direction. Attached to the inner surface of (10), the inside of the machine frame (1) and the respective storage spaces of the detector (9) and the terminal block (11) communicate with each other through through holes (13), (14), (12). Let
The end of the detection winding of the detector (9) is connected to the terminal block (11) through the through hole (14),
In the terminal block (11), the stator winding (5) is connected to an external electric wire, and the detection winding of the detector (9) is connected to an electric wire from an external control device. Explosion-proof rotary electric machine
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33123297A JP3922319B2 (en) | 1997-11-14 | 1997-11-14 | Explosion-proof rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33123297A JP3922319B2 (en) | 1997-11-14 | 1997-11-14 | Explosion-proof rotary electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11150907A JPH11150907A (en) | 1999-06-02 |
| JP3922319B2 true JP3922319B2 (en) | 2007-05-30 |
Family
ID=18241386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33123297A Expired - Lifetime JP3922319B2 (en) | 1997-11-14 | 1997-11-14 | Explosion-proof rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3922319B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2915032B1 (en) * | 2007-04-12 | 2009-11-13 | Leroy Somer Moteurs | ANTI-FLAGING ROTATING MACHINE |
| EP2166648A1 (en) * | 2008-09-22 | 2010-03-24 | Siemens Aktiengesellschaft | Electric machine with pressure-resistant capsulated rotary encoder |
| DE102009013049B4 (en) * | 2009-03-16 | 2017-09-21 | Sew-Eurodrive Gmbh & Co Kg | Explosion-proof electric motor |
| JP6459888B2 (en) * | 2015-10-12 | 2019-01-30 | 株式会社豊田自動織機 | Rotating electric machine |
-
1997
- 1997-11-14 JP JP33123297A patent/JP3922319B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11150907A (en) | 1999-06-02 |
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