JPH0646217Y2 - Rotary rectifier - Google Patents
Rotary rectifierInfo
- Publication number
- JPH0646217Y2 JPH0646217Y2 JP2217088U JP2217088U JPH0646217Y2 JP H0646217 Y2 JPH0646217 Y2 JP H0646217Y2 JP 2217088 U JP2217088 U JP 2217088U JP 2217088 U JP2217088 U JP 2217088U JP H0646217 Y2 JPH0646217 Y2 JP H0646217Y2
- Authority
- JP
- Japan
- Prior art keywords
- support ring
- rotary
- fixed
- rectifier
- rectifying element
- 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
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- Synchronous Machinery (AREA)
Description
【考案の詳細な説明】 A.産業上の利用分野 本考案は同期機の回転軸に設けられる回転整流器に係
り、特に整流素子保護の放電抵抗を備えた回転整流器に
関する。DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a rotary rectifier provided on a rotary shaft of a synchronous machine, and more particularly to a rotary rectifier having a discharge resistance for protecting a rectifying element.
B.考案の概要 本考案は回転整流器の形状寸法の短縮を図ると共に冷却
効果の向上を目的としてもので、整流素子を放熱体に固
設すると共に、放熱体を回転軸と平行に且つ支持環内周
面との間に空間を形成して固設し、この空間の支持環内
内周面に抵抗体を配設することにより、回転整流器全体
の軸方向の長さを短縮すると共に、回転整流器のファン
作用の増大により冷却効果を高める。B. Outline of the Invention The present invention is intended to reduce the shape and size of the rotary rectifier and to improve the cooling effect.The rectifying element is fixed to the radiator, and the radiator is parallel to the rotation axis and the support ring. A space is formed between the inner peripheral surface and the inner peripheral surface and fixed, and a resistor is arranged on the inner peripheral surface of the support ring in this space to shorten the axial length of the entire rotary rectifier and to rotate the rotary rectifier. Increase the cooling effect by increasing the fan action of the rectifier.
C.従来の技術 同期機の励磁系には種々のものが用いられてるが、近年
の半導体整流器の発達によって交流発電機を電源とし、
半導体整流器を通して励磁を同期機に与えるブラシレス
励磁方式が広く提供されている。この主要部分は主発電
機の界磁と同軸上に組立てられた回転電機子形の同期交
流励磁機とシリコン整流素子でできた回転整流器であ
る。C. Conventional technology Various types of excitation systems are used for synchronous machines, but with the recent development of semiconductor rectifiers, an AC generator is used as a power source,
Brushless excitation methods that provide excitation to a synchronous machine through a semiconductor rectifier are widely provided. This main part is a rotary rectifier composed of a rotating armature-type synchronous AC exciter and a silicon rectifier, which are assembled coaxially with the field of the main generator.
第２図にブラシレス同期機の断面図を示す。図におい
て、同期発電機101の22は回転軸、20は回転軸22に固定
された主発電機101の回転子、21は固定子で、24は固定
子21に巻装した固定子巻線である。固定子21は軸受23を
備えた固定カバーに固設されており、回転軸22の延設さ
れた同軸上には交流励磁機102の回転電機子26が配設さ
れ、この回転電機子26の出力を整流する回転整流器１が
回転軸22の先端に固設される。FIG. 2 shows a sectional view of the brushless synchronous machine. In the figure, 22 of the synchronous generator 101 is a rotary shaft, 20 is a rotor of the main generator 101 fixed to the rotary shaft 22, 21 is a stator, and 24 is a stator winding wound around the stator 21. is there. The stator 21 is fixed to a fixed cover provided with a bearing 23, and the rotary armature 26 of the AC exciter 102 is disposed on the coaxial extension of the rotary shaft 22. A rotary rectifier 1 that rectifies the output is fixed to the tip of the rotary shaft 22.
回転整流器１は従来第３図（ａ），（ｂ）に示す構造の
整流子保護回路を備えたものが多く用いられている。即
ち、第３図（ａ）は回転整流器１の軸方向断面図で、第
３図（ｂ）は（ａ）図のＢ−Ｂ線矢視図を示している。
回転整流器１は回転軸22に形成された段部22aに固設さ
れた支持環４と、この支持環４の内周面に配設した絶縁
体７を介して回転軸心の径方向に固設された放熱体（ヒ
ートシンク）２と、放熱体２に固設された整流素子３
と、支持環４の軸方向先端に配設された整流素子保護の
ための放熱抵抗８によって概ね構成されている。Conventionally, the rotary rectifier 1 is often provided with a commutator protection circuit having a structure shown in FIGS. That is, FIG. 3 (a) is an axial sectional view of the rotary rectifier 1, and FIG. 3 (b) is a view taken along the line BB of FIG. 3 (a).
The rotary rectifier 1 is fixed in the radial direction of the rotary shaft center via a support ring 4 fixed to a step portion 22a formed on the rotary shaft 22 and an insulator 7 arranged on the inner peripheral surface of the support ring 4. A heat sink (heat sink) 2 provided and a rectifying element 3 fixed to the heat sink 2.
And a heat radiation resistor 8 for protecting the rectifying element, which is arranged at the tip of the support ring 4 in the axial direction.
回転整流器１は上記の構成によって交流励磁発電機102
の出力を、回転する支持環４に設けられた整流素子３に
より整流して、同期発電機101の界磁に励磁電流を供給
する。The rotary rectifier 1 has the above-described configuration and is an AC excitation generator 102.
Is rectified by the rectifying element 3 provided on the rotating support ring 4, and an exciting current is supplied to the field of the synchronous generator 101.
D.考案が解決しようとする課題 この場合第３図（ａ）に示すように、整流素子３の保護
のために設ける放電抵抗８の配設位置としては、配線の
容易な点からも回転整流器１と一体にすることが望まし
い。しかし、この放電抵抗８を回転整流器１の支持環４
に配設すると、回転整流器１の寸法が大きくなり、特に
支持環４の軸方向の長さが多く必要となるために回転整
流器１の構造の改善が求められていた。D. Problem to be Solved by the Invention In this case, as shown in FIG. 3 (a), the position of the discharge resistor 8 provided to protect the rectifying element 3 is a rotary rectifier from the viewpoint of easy wiring. It is desirable to be integrated with 1. However, this discharge resistor 8 is connected to the support ring 4 of the rotary rectifier 1.
In this case, the size of the rotary rectifier 1 becomes large, and in particular, the axial length of the support ring 4 is required to be large. Therefore, the structure of the rotary rectifier 1 needs to be improved.
本考案は上記の課題を解決するために成されたもので、
機能の向上と共に、小形に構成した回転整流器の提供を
目的とするものである。The present invention has been made to solve the above problems,
The object of the present invention is to provide a rotary rectifier that is small in size and has improved functions.
E.課題を解決するための手段 本考案は回転整流器の構成を多段の部品配置として小形
化を図ると共に、回転周速度の差を利用して効率的な冷
却を図ったもので、その具体的手段は、整流素子を放熱
体に固設すると共に放熱体を回転軸心方向に且つ支持環
内周面と支持環周縁部の先端内壁に垂設した絶縁体との
間に空間を形成して固設し、この空間に抵抗体を配設し
たことを特徴とする。E. Means for Solving the Problems The present invention aims to reduce the size of the structure of the rotary rectifier by arranging the parts in multiple stages, and at the same time, achieves efficient cooling by utilizing the difference in the rotational peripheral speed. The means fixes the rectifying element to the heat radiator, and forms a space between the heat radiator in the direction of the rotation axis and between the inner peripheral surface of the support ring and the insulator vertically provided on the inner wall of the tip of the peripheral edge of the support ring. It is characterized in that it is fixed and a resistor is arranged in this space.
F.作用 上記の手段を用いることにより、整流素子と放電抵抗は
立体的に２段構造で支持環に配設されると共に、支持環
に形成された空間部分に、回転周速度の差によって空気
の流通が生じて放熱体の熱放散を増進する。F. Action By using the above means, the rectifying element and the discharge resistance are three-dimensionally arranged in the support ring in the support ring, and the air gap is formed in the space formed in the support ring due to the difference in rotational peripheral speed. Circulation of the heat is generated to enhance the heat dissipation of the radiator.
G.実施例 以下、本考案の実施例を図面を参照して詳細に説明す
る。第１図は本考案の実施例の回転変流器を示し、
（ａ）図は回転変流器の軸方向の断面図を示し、（ｂ）
図は（ａ）図のＡ−Ａ線矢視図を示したものである。な
お、従来技術を説明した第２図，第３図と同等部分には
同一符号を付して説明する。G. Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a rotary current transformer according to an embodiment of the present invention.
(A) The figure shows the axial sectional view of the rotary current transformer, (b)
The figure shows a view taken along the line AA of FIG. The same parts as those shown in FIGS. 2 and 3 for explaining the prior art will be designated by the same reference numerals.
第１図（ａ）に示すように本実施例における回転変流器
１は円形のドラム状に形成した支持環４と、支持環４の
円周内壁に配設した絶縁体５と、支持環４の周縁部先端
内壁に垂設した絶縁体６と、この絶縁体５と垂設した絶
縁体６に固設され、回転軸22と平行に設けられる放熱体
であるヒートシンク２と、このヒートシンク２と支持環
４との間に形成される空間部分に配設され、支持環４の
周縁部内壁に固設した放電抵抗８によって構成される。As shown in FIG. 1 (a), the rotary current transformer 1 according to the present embodiment includes a support ring 4 formed in a circular drum shape, an insulator 5 arranged on an inner circumferential wall of the support ring 4, and a support ring. 4, an insulator 6 vertically provided on the inner wall of the tip of the peripheral edge portion, a heat sink 2 that is a radiator that is fixed to the insulator 5 and is provided in parallel with the rotating shaft 22, and the heat sink 2 And a supporting ring 4 are provided in a space formed between the supporting ring 4 and the supporting ring 4.
本実施例の構成を第１図（ｂ）も参照して更に詳細に説
明すると、支持環４は同期発電機101,並びに交流励磁発
電機102の回転軸22に形成した段部22aに固設されると共
に、この回転軸22に固設されて回転軸22の径方向に立設
した円板部分4bの円周内壁には絶縁体５が固着される。
支持環４のドラム状の周縁部分4cの略中心部には通気用
孔4aが複数穿設され、先端部分の内壁には絶縁体６が垂
設される。そして上記絶縁体５と絶縁体６の内面には、
整流素子３の放熱を図るヒートシンク２が固設される。The configuration of the present embodiment will be described in more detail with reference to FIG. 1 (b) as well. The support ring 4 is fixed to a step portion 22a formed on the rotary shaft 22 of the synchronous generator 101 and the AC excitation generator 102. At the same time, the insulator 5 is fixed to the inner circumferential wall of the disk portion 4b that is fixedly mounted on the rotary shaft 22 and stands upright in the radial direction of the rotary shaft 22.
A plurality of ventilation holes 4a are formed substantially in the center of the drum-shaped peripheral portion 4c of the support ring 4, and an insulator 6 is vertically provided on the inner wall of the tip portion. And, on the inner surfaces of the insulator 5 and the insulator 6,
A heat sink 2 for radiating heat from the rectifying element 3 is fixedly installed.
ヒートシンク２は支持環４のドラム状の周縁部分内壁と
の間に空間を設けると共に、ヒートシンク２に固着した
整流素子３が回転軸22の軸心方向になるように回転軸22
と平行に絶縁体5,6の間に配設される。このヒートシン
ク２の形成した空間部分に放電抵抗８であるシーズヒー
タ等が固設される。A space is provided between the heat sink 2 and the inner wall of the drum-shaped peripheral edge of the support ring 4, and the rotator 22 is fixed so that the rectifying element 3 fixed to the heat sink 2 is in the axial direction of the rotary shaft 22.
Is arranged between the insulators 5 and 6 in parallel with. A sheathed heater, which is a discharge resistor 8, is fixedly installed in the space formed by the heat sink 2.
放電抵抗８として本実施例のようにシーズヒータを用い
る場合は、直接支持環４の周縁部4cの内壁に固設しても
よいが、絶縁の必要のある抵抗体の場合には、周縁部内
壁に絶縁体を介して固設する。When a sheathed heater is used as the discharge resistor 8 as in the present embodiment, it may be directly fixed to the inner wall of the peripheral portion 4c of the support ring 4, but in the case of a resistor that needs insulation, the peripheral portion It is fixed to the inner wall via an insulator.
上記のように構成された本実施例の回転変流器１は回転
軸22の回転により励磁発電機102が発生する電力を、支
持環４に固設した整流素子３により直流に整流して回転
軸22に形成された回路によって同期発電機101の界磁20
に励磁電流を供給する。この場合に回転変流器１の各構
成部分では、第１図（ａ）に示す支持環４の周縁部先端
点ｅの回転周速度VCと絶縁体６の垂設先端点Ｄの回転周
速度VDはVC＞VDであり、このためＣ点とＤ点の受ける圧
力はPC＜PDとなるため、Ｄ点側からＣ点側への空気の流
れが生じ、ヒートシンク２の下面に形成した空間部から
支持環４の周縁部に穿設した孔4aを経由して空気が流通
する。このため回転整流器１全体がファンと同様な作用
を生じ、単に整流素子３や放電抵抗８への冷却効率の向
上だけでなく近接する交流励磁発電機102へのファン作
用をも生じるのである。The rotary current transformer 1 of the present embodiment configured as described above is rotated by rectifying the electric power generated by the excitation generator 102 by the rotation of the rotary shaft 22 into a direct current by the rectifying element 3 fixed to the support ring 4. The field 20 of the synchronous generator 101 is controlled by the circuit formed on the shaft 22.
Supply an exciting current to. In this case, in each component of the rotary current transformer 1, the peripheral speed V C of the peripheral end point e of the support ring 4 and the rotational peripheral of the vertical end point D of the insulator 6 shown in FIG. The speed V D is V C > V D , and therefore the pressures received at the points C and D are P C <P D , so that air flow occurs from the D point side to the C point side, and the heat sink 2 Air flows from the space formed on the lower surface through the holes 4a formed in the peripheral portion of the support ring 4. For this reason, the rotary rectifier 1 as a whole produces a function similar to that of a fan, not only improving the cooling efficiency for the rectifying element 3 and the discharge resistor 8 but also producing a fan action for the adjacent AC excitation generator 102.
本考案の実施例にあたっては上記実施例に限定されるも
のではなく、例えば回転変流器１の支持環内壁に形成さ
れた空間部に配設される部材は放電抵抗に限定されず、
使用時の温度上昇限界が低い部材等も配置されることは
当然である。The embodiment of the present invention is not limited to the above-described embodiment. For example, the member arranged in the space formed on the inner wall of the support ring of the rotary current transformer 1 is not limited to the discharge resistance,
It goes without saying that members having a low temperature rise limit during use are also arranged.
H.考案の効果 以上説明したように、本考案は整流素子を放熱体に固設
すると共に放熱体に回転軸心方向に且つ支持環円周面と
支持環周縁部の先端内壁に垂設した絶縁体との間に空間
を形成して固設し、この空間に抵抗体を配設したので、
支持環の軸方向の長さが短くなって回転整流器を小形に
短縮できる効果を奏する。また支持環内周面に空間を形
成する絶縁体の配設により回転整流器のファン作用が大
きくなって、抵抗体にあたる風量が大きくなって冷却が
よくなる。このファン作用が大きいことにより励磁機冷
却用の冷却ファンとしても利用できる効果を生じる。H. Effect of the Invention As described above, according to the present invention, the rectifying element is fixed to the heat radiator, and is vertically provided on the heat radiator in the rotation axis direction and on the support ring circumferential surface and the inner wall of the support ring peripheral edge. Since a space is formed between the insulator and the insulator, and the resistor is arranged in this space,
The length of the support ring in the axial direction is shortened, and the rotary rectifier can be shortened to a small size. Further, by disposing an insulator forming a space on the inner peripheral surface of the support ring, the fan action of the rotary rectifier is increased, the air volume hitting the resistor is increased, and cooling is improved. The large fan action brings about an effect that it can be used as a cooling fan for cooling the exciter.
第１図は本考案の実施例の構成を示す図で、第２図と第
３図は従来技術による実施例を示したものである。 １……回転変流器、２……放熱体（ヒートシンク）、３
……整流素子、４……支持環、4a……通気用孔、4b……
円板部分、4c……周縁部分、5,6……絶縁体、22……回
転軸。FIG. 1 is a diagram showing the construction of an embodiment of the present invention, and FIGS. 2 and 3 show an embodiment according to the prior art. 1 ... Rotary current transformer, 2 ... Heat radiator (heat sink), 3
...... Rectifier element, 4 support ring, 4a Ventilation hole, 4b
Disk part, 4c ... peripheral part, 5,6 ... insulator, 22 ... rotating shaft.
Claims (1)
持環を固設して、絶縁したその内周沿面に整流素子を固
設した回転整流器において、 整流素子を放熱体に固設すると共に放熱体を回転軸心方
向に且つ支持環内周面と支持環周縁部の先端内壁に垂設
した絶縁体との間に空間を形成して固設し、この空間に
抵抗体を配設したことを特徴とする回転整流器。1. A rotary rectifier in which a drum-shaped support ring is fixed to a rotary shaft of a brushless synchronous machine, and a rectifying element is fixed to an insulated inner peripheral surface of the brushless synchronous machine. The rectifying element is fixed to a radiator. A heat radiator is fixed in the direction of the axis of rotation by forming a space between the inner peripheral surface of the support ring and the insulator hung vertically on the inner wall of the tip of the peripheral edge of the support ring, and arranging the resistor in this space. A rotary rectifier characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2217088U JPH0646217Y2 (en) | 1988-02-22 | 1988-02-22 | Rotary rectifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2217088U JPH0646217Y2 (en) | 1988-02-22 | 1988-02-22 | Rotary rectifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01127361U JPH01127361U (en) | 1989-08-31 |
| JPH0646217Y2 true JPH0646217Y2 (en) | 1994-11-24 |
Family
ID=31240043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2217088U Expired - Lifetime JPH0646217Y2 (en) | 1988-02-22 | 1988-02-22 | Rotary rectifier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0646217Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018034513A1 (en) * | 2016-08-19 | 2018-02-22 | 현대일렉트릭앤에너지시스템(주) | Field discharge resistor unit and synchronous motor including same |
-
1988
- 1988-02-22 JP JP2217088U patent/JPH0646217Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018034513A1 (en) * | 2016-08-19 | 2018-02-22 | 현대일렉트릭앤에너지시스템(주) | Field discharge resistor unit and synchronous motor including same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01127361U (en) | 1989-08-31 |
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