JPH0538089A - Alternator for vehicle - Google Patents

Alternator for vehicle

Info

Publication number
JPH0538089A
JPH0538089A JP3216327A JP21632791A JPH0538089A JP H0538089 A JPH0538089 A JP H0538089A JP 3216327 A JP3216327 A JP 3216327A JP 21632791 A JP21632791 A JP 21632791A JP H0538089 A JPH0538089 A JP H0538089A
Authority
JP
Japan
Prior art keywords
brush
voltage regulator
frame
brush holder
vehicle
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.)
Granted
Application number
JP3216327A
Other languages
Japanese (ja)
Other versions
JP2634336B2 (en
Inventor
Hitoshi Goto
均 後藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP21632791A priority Critical patent/JP2634336B2/en
Publication of JPH0538089A publication Critical patent/JPH0538089A/en
Application granted granted Critical
Publication of JP2634336B2 publication Critical patent/JP2634336B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Motor Or Generator Frames (AREA)

Abstract

PURPOSE:To provide an alternator for vehicle in which the mounting position of the alternator in the circumferential direction of vehicle is not restricted and external water is prevented from intruding into air holes at the frame containing section of a voltage regulator. CONSTITUTION:Opening at the other end of frame 24 containing section of a voltage regulator 40 is coupled with one end of the brush box 51 of a brush holder 50 and an air hole 51f is made through a brush containing hole 51b.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、ブラシ保持器に電圧
調整装置を結合し、後ブラケットに取付けた車両用交流
発電機に関し、特に緩衝封止された電圧調整器基板部の
防水性の向上にかかわる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle AC generator in which a brush holder is connected to a voltage adjusting device and is mounted on a rear bracket. Involved in.

【0002】[0002]

【従来の技術】図3は従来の車両用交流発電機の断面図
である。図において、1は固定子で、固定子鉄心2と、
固定子コイル3とからなる。4は回転子で、次のように
構成されている。5及び6は異極性の磁極鉄心で、双方
の磁極歯部が円周方向に対し交互に出されている。7は
双方の磁極鉄心5、6間に保持された励磁コイル、8は
磁極鉄心5、6を固着した回転軸、9は回転軸8に絶縁
スリーブを介し固定された1対のスリップリング、10及
び11は磁極鉄心5及び6に固着されたファンである。
2. Description of the Related Art FIG. 3 is a sectional view of a conventional vehicle alternator. In the figure, 1 is a stator, and a stator core 2 and
And a stator coil 3. 4 is a rotor, which is configured as follows. Reference numerals 5 and 6 are magnetic pole cores of opposite polarities, and both magnetic pole tooth portions are alternately projected in the circumferential direction. 7 is an exciting coil held between the magnetic pole cores 5 and 6, 8 is a rotary shaft to which the magnetic pole cores 5 and 6 are fixed, 9 is a pair of slip rings fixed to the rotary shaft 8 via an insulating sleeve, 10 And 11 are fans fixed to the magnetic pole cores 5 and 6.

【0003】次に、12及び13は前ブラケット及び後ブラ
ケットで、締付けボルト14により固定子鉄心2を結合し
ている。前ブラケット12には通風のため複数宛の吸気孔
12aと排気孔12bとが設けられている。また、後ブラケッ
ト13には通風のため、複数宛の吸気孔13aと排気孔13bと
が設けられている。回転軸8は軸受15及び16を介し、前
ブラケット12及び後ブラケット13に支持されている。17
は回転軸8に固定されたプーリで、機関の回転がベルト
を介し伝えられ、回転子4を回転させる。
Next, 12 and 13 are front brackets and rear brackets, which connect the stator core 2 with tightening bolts 14. Front bracket 12 has multiple intake holes for ventilation
12a and an exhaust hole 12b are provided. Further, the rear bracket 13 is provided with a plurality of intake holes 13a and exhaust holes 13b for ventilation. The rotating shaft 8 is supported by the front bracket 12 and the rear bracket 13 via bearings 15 and 16. 17
Is a pulley fixed to the rotary shaft 8, and the rotation of the engine is transmitted via a belt to rotate the rotor 4.

【0004】18は固定子コイル3に誘導された交流電圧
による交流電流を、直流電流に整流する整流器、19は発
電機電圧を検出し、磁励電流を制御し端子電圧を所定値
に調整する電圧調整装置である。20は後ブラケット13に
保持されたブラシ保持器で、保持したブラシ21をスリッ
プリング9に圧接させている。電圧調整装置19はブラシ
保持器20に取付けられている。23は後ブラケット13に取
付けられたカバーである。
Reference numeral 18 is a rectifier for rectifying an AC current due to the AC voltage induced in the stator coil 3 into a DC current, and 19 is for detecting a generator voltage and controlling a magnetic excitation current to adjust a terminal voltage to a predetermined value. It is a voltage regulator. Reference numeral 20 is a brush holder held by the rear bracket 13, and the held brush 21 is pressed against the slip ring 9. The voltage regulator 19 is attached to the brush holder 20. Reference numeral 23 is a cover attached to the rear bracket 13.

【0005】上記交流発電機において回転子4が回転さ
れると、固定子コイル3に交流電圧が誘導され電力を供
給し発熱する。ファン10、11の回転による通風で、固定
子1部及び回転子4、整流器18、電圧調整装置19及びブ
ラシ保持器20部を冷却する。
When the rotor 4 is rotated in the AC generator, an AC voltage is induced in the stator coil 3 to supply electric power and generate heat. Ventilation caused by the rotation of the fans 10 and 11 cools the stator 1 and the rotor 4, the rectifier 18, the voltage regulator 19, and the brush holder 20.

【0006】上記電圧調整装置19に取付けられたブラシ
保持器20部を、図4(A)及び(B)に正面図及び側面断面図
で示し、図5(B)に電圧調整装置をカバーを外した正面
図で示す。図4及び図5(B)において、電圧調整装置19
は、次のように構成されている。24は合成樹脂成形によ
る調整装置フレームで、両端が開口した収容部24aが設
けられ、コネクタ囲い部24bが一体に形成されており、
両端の耳部24cには取付け用穴24dが設けられている。25
はフレーム24一方の開口部に固着されたヒートシンク、
26はヒートシンク25に接着され、収容部24a内にある電
圧調整器基板で、電圧調整器は例えばICからなる。27
はフレーム24の収容部24aに充てんされた緩衝封止剤
で、例えばゲル状の封止樹脂からなり、収容部24aの他
方端にはすき間29が設けられている。28はフレーム24に
接着されたカバーである。24eはフレーム24に設けられ
た結合及び接続用のねじ穴である。フレーム24の収容部
24aの角部には空気穴24fが設けられている。この空気穴
24fは、製造時の加熱乾燥工程での、また、車両に装着
後の交流発電機の周囲温度の変化での、収容部24aの緩
衝封止剤27の体積変化を逃がし、すき間29の空気の膨
張、収縮を自在にするものである。これにより、電圧調
整器基板26の破損が防止される。
The brush holder 20 attached to the voltage regulator 19 is shown in front and side sectional views in FIGS. 4A and 4B, and the cover is shown in FIG. 5B. It is shown in the front view removed. In FIG. 4 and FIG. 5 (B), the voltage adjusting device 19
Is configured as follows. 24 is an adjusting device frame formed by synthetic resin molding, a housing portion 24a having both ends opened is provided, and a connector enclosure portion 24b is integrally formed.
Mounting holes 24d are provided in the ears 24c at both ends. twenty five
Is a heat sink fixed to one opening of the frame 24,
Reference numeral 26 denotes a voltage regulator substrate that is adhered to the heat sink 25 and is located inside the housing portion 24a. 27
Is a buffer sealant filled in the housing portion 24a of the frame 24, and is made of, for example, a gel sealing resin, and a gap 29 is provided at the other end of the housing portion 24a. 28 is a cover adhered to the frame 24. 24e is a screw hole provided in the frame 24 for connection and connection. Housing for frame 24
Air holes 24f are provided at the corners of 24a. This air hole
24f escapes the volume change of the buffer sealant 27 of the accommodating portion 24a in the heating and drying process at the time of manufacturing, and also due to the change in the ambient temperature of the alternator after being mounted on the vehicle, and eliminates the air in the gap 29. It allows expansion and contraction freely. This prevents damage to the voltage regulator board 26.

【0007】図4及び図5(A)において、ブラシ保持器2
0は次のように構成されている。30は合成樹脂成形によ
るブラシ箱で、スリップリング9部を覆う円筒部30aが
一体に形成されている。ブラシ箱30には1対の四角穴か
らなる収容穴30bが設けられ、それぞれブラシ21を収容
している。31は圧縮ばね、32は金属押え板、33はパッキ
ン、34はブラシ箱30に固着されたカバーである。ブラシ
箱30には両側1対の結合用穴30cが設けられており、図
4(A)のように、結合ねじ35により調整器フレーム24の
ねじ穴24eに結合される。このように、ブラシ保持器20
を結合した電圧調整装置19は1対の取付け用穴24dに取
付けボルト(図示しない)が通され後ブラケット13に取
付けられる。
In FIGS. 4 and 5 (A), the brush holder 2
0 is configured as follows. Reference numeral 30 denotes a brush box made of synthetic resin, and a cylindrical portion 30a that covers the slip ring 9 is integrally formed. The brush box 30 is provided with an accommodation hole 30b composed of a pair of square holes, and accommodates the brushes 21 therein. 31 is a compression spring, 32 is a metal pressing plate, 33 is a packing, and 34 is a cover fixed to the brush box 30. The brush box 30 is provided with a pair of coupling holes 30c on both sides, and is coupled to a screw hole 24e of the adjuster frame 24 by a coupling screw 35 as shown in FIG. 4 (A). In this way, the brush holder 20
The voltage adjusting device 19 in which the above are connected is attached to the rear bracket 13 by passing an attaching bolt (not shown) through the pair of attaching holes 24d.

【0008】[0008]

【発明が解決しようとする課題】上記のような従来の車
両用交流発電機では、調整器フレーム24の収容部24aの
角部に設けた空気穴24fは、交流発電機を車両に装着し
たとき、下方向きになるように、装着が制約されるとい
う問題点があった。空気穴24fが上方向きになった状態
に交流発電機を車両に装着すると、空気穴24fに外部の
水等の侵入するおそれがあった。この発明は、このよう
な問題点を解決するためになされたもので、車両への円
周方向の装着位置が制約を受けず、電圧調整装置に対す
る空気穴への外部の水等の侵入を防止した車両用交流発
電機を得ることを目的としている。
In the conventional vehicle alternator as described above, the air holes 24f provided at the corners of the accommodation portion 24a of the regulator frame 24 are provided when the alternator is mounted on the vehicle. However, there is a problem that the mounting is restricted so that it faces downward. If the AC generator is mounted on the vehicle with the air holes 24f facing upward, there is a risk that external water or the like may enter the air holes 24f. The present invention has been made to solve such a problem, and the mounting position in the circumferential direction of a vehicle is not restricted, and the entry of external water or the like into the air hole of the voltage regulator is prevented. The purpose is to obtain a vehicle alternator.

【0009】[0009]

【課題を解決するための手段】この発明にかかる車両用
交流発電機は、電圧調整装置のフレームの収容部の他方
の開口側をブラシ保持器のブラシ箱の一端面に結合し、
この一端面にブラシ収容穴に貫通する空気穴を設けたも
のである。
According to the vehicle alternator of the present invention, the other opening side of the housing portion of the frame of the voltage regulator is connected to one end surface of the brush box of the brush holder.
An air hole penetrating the brush accommodating hole is provided on this one end surface.

【0010】[0010]

【作用】この発明においては、電圧調整装置のフレーム
の収容部の他方の開口側から空気穴が、ブラシ箱の収容
穴に連通しており、外部からの水等の浸入するおそれが
なく、交流発電機の車両への円周方向の装着位置の制約
がなくされる。
In the present invention, the air hole communicates with the accommodation hole of the brush box from the other opening side of the accommodation portion of the frame of the voltage regulator, and there is no risk of water or the like entering from the outside. There is no restriction on the mounting position of the generator in the vehicle in the circumferential direction.

【0011】[0011]

【実施例】この発明の一実施例による車両用交流発電機
は、図3の従来の交流発電機とは、電圧調整装置とブラ
シ保持器部が改良され異なるもので、他の構成は同様で
ある。図1及び図2はこの発明の一実施例を示し、図1
(A)及び(B)は電圧調整装置とブラシ保持器部の正面図及
び側面断面図で、図2(A)及び(B)はブラシ保持器の正面
図及び電圧調整装置の正面図である。電圧調整装置40
は、図1及び図2(B)に示すように構成されており、24
〜27、29、24a〜24e、31〜35は図4及び図5(B)と同様であ
る。電圧調整器40のフレーム24には、上記従来装置のよ
うなカバー28は使用していない。調整器フレーム24の一
端にヒートシンク25を固着し、ヒートシンク25には電圧
調整器基板26が接着され、フレーム24の収容部24aには
緩衝封止剤27を充てんし、すき間29が設けられている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An AC generator for a vehicle according to an embodiment of the present invention is different from the conventional AC generator shown in FIG. 3 in that a voltage regulator and a brush holder are improved and other configurations are the same. is there. 1 and 2 show an embodiment of the present invention.
(A) and (B) are a front view and a side sectional view of a voltage regulator and a brush holder, and FIGS. 2 (A) and (B) are a front view of the brush cage and a front view of the voltage regulator. .. Voltage regulator 40
Is configured as shown in FIG. 1 and FIG.
27, 29, 24a to 24e, and 31 to 35 are the same as those in FIGS. 4 and 5 (B). The frame 24 of the voltage regulator 40 does not use the cover 28 as in the conventional device. A heat sink 25 is fixed to one end of the regulator frame 24, a voltage regulator substrate 26 is adhered to the heat sink 25, a buffer sealant 27 is filled in a housing portion 24a of the frame 24, and a gap 29 is provided. ..

【0012】ブラシ保持器50は、図1及び図2(A)に示
すように構成されており、19、31〜34は図4及び図5(A)
と同様である。合成樹脂成形によるブラシ箱51には、ス
リップリング9部を覆う円筒部51aが一体に形成されて
いる。また、ブラシ箱51にはブラシ19を収容する四角穴
の収容穴51bが形成されており、さらに両側に耳部51cが
設けられ、取付け用穴51dがあけられ、フレーム24の取
付け用穴24dに対応している。50eはブラシ箱51に設けら
れた1対の結合用穴で、結合ねじ35によりフレーム24の
ねじ穴24eに締付けられる。ブラシ箱51の一端部には、
空気穴51fが収容穴51bに貫通して設けられている。空気
穴51f部を図1(C)に拡大図で示す。
The brush holder 50 is constructed as shown in FIGS. 1 and 2 (A), and 19, 31 to 34 are shown in FIGS. 4 and 5 (A).
Is the same as. The brush box 51 made of synthetic resin is integrally formed with a cylindrical portion 51a that covers the slip ring 9 portion. Further, the brush box 51 is formed with a square hole accommodating hole 51b for accommodating the brush 19, and further, ear portions 51c are provided on both sides, a mounting hole 51d is opened, and a mounting hole 24d of the frame 24 is provided. It corresponds. Reference numeral 50e is a pair of connecting holes provided in the brush box 51, which are fastened to the screw holes 24e of the frame 24 by the connecting screws 35. At one end of the brush box 51,
An air hole 51f is provided so as to penetrate the accommodation hole 51b. The air hole 51f portion is shown in an enlarged view in FIG.

【0013】上記ブラシ保持器50のブラシ箱51の一端部
に、電圧調整器40をフレーム51の収容部24aの他方の開
口部端を結合ねじ35の締付けで結合し、双方の取付け用
穴41c、51dに取付けボルト(図示しない)を通し、後ブ
ラケット13に取付ける。こうして、フレーム51の収容部
24aの他方の開口部はブラシ箱51端によりふさがれると
ともに、空気穴51fにより、収容穴51bに連通している。
したがつて、交流発電機が車両に円周方向にどのような
位置に装着されても、空気穴51fに外部の水等が浸入す
ることはない。
To the one end of the brush box 51 of the brush holder 50, the voltage regulator 40 is connected to the other opening end of the accommodating portion 24a of the frame 51 by tightening the connecting screw 35, and both mounting holes 41c are provided. , 51d with mounting bolts (not shown), and attach to the rear bracket 13. Thus, the housing portion of the frame 51
The other opening of 24a is closed by the end of the brush box 51 and communicates with the accommodation hole 51b by an air hole 51f.
Therefore, no matter what position the AC generator is mounted on the vehicle in the circumferential direction, external water or the like does not enter the air holes 51f.

【0014】[0014]

【発明の効果】以上のように、この発明によれば、電圧
調整装置のフレーム収容部の他方の開口側をブラシ保持
器のブラシ箱の一端部に結合し、この一端部にブラシ収
容穴に貫通する空気穴を設けたので、交流発電機が車両
に円周方向の装着位置に制約を受けず、空気穴に外部か
らの水等の侵入が防止される。
As described above, according to the present invention, the other opening side of the frame accommodating portion of the voltage regulator is connected to one end of the brush box of the brush holder, and the brush accommodating hole is formed at this one end. Since the through air holes are provided, the AC generator is not restricted by the mounting position in the vehicle in the circumferential direction, and water or the like is prevented from entering the air holes from the outside.

【図面の簡単な説明】[Brief description of drawings]

【図1】(A)図はこの発明の一実施例による車両用交流
発電機の結合された電圧調整装置とブラシ保持器の正面
図、(B)図は(A)図のB1−B1線における断面図、(C)図
は(B)図の空気穴部の拡大断面図である。
FIG. 1 (A) is a front view of a voltage regulator and a brush holder which are connected to a vehicle alternator according to an embodiment of the present invention, and FIG. 1 (B) is B 1 -B of FIG. 1 (A). A cross-sectional view taken along the line 1 and (C) is an enlarged cross-sectional view of the air hole portion in (B).

【図2】(A)図は図1のブラシ保持器の正面図、(B)図は
図1の電圧調整装置の正面図である。
2A is a front view of the brush holder of FIG. 1, and FIG. 2B is a front view of the voltage regulator of FIG.

【図3】従来の電圧調整装置とブラシ保持器を取付けた
車両用交流発電機の断面図である。
FIG. 3 is a cross-sectional view of a vehicle AC generator equipped with a conventional voltage regulator and a brush holder.

【図4】(A)図は図3の結合された電圧調整装置とブラ
シ保持器の正面図、(B)図は(A)図のB4−B4線における
断面図である。
4A is a front view of the combined voltage regulator and brush holder of FIG. 3, and FIG. 4B is a sectional view taken along line B 4 -B 4 of FIG. 4A.

【図5】(A)図は図4のブラシ保持器の正面図、(B)図は
図4の電圧調整装置の正面図である。
5 (A) is a front view of the brush holder of FIG. 4, and FIG. 5 (B) is a front view of the voltage regulator of FIG.

【符号の説明】[Explanation of symbols]

1 固定子 4 回転子 8 回転軸 9 スリップリング 12 前ブラケット 13 後ブラケット 19 ブラシ 24 調整装置フレーム 25 ヒートシンク 26 電圧調整器基板 27 緩衝封止剤 40 電圧調整装置 50 ブラシ保持器 51 ブラシ箱 51b ブラシ収容穴 51f 空気穴 1 Stator 4 Rotor 8 Rotating shaft 9 Slip ring 12 Front bracket 13 Rear bracket 19 Brush 24 Adjuster frame 25 Heat sink 26 Voltage regulator board 27 Buffer sealant 40 Voltage regulator 50 Brush retainer 51 Brush box 51b Brush accommodation Hole 51f air hole

Claims (1)

【特許請求の範囲】 【請求項1】 前後のブラケットに結合された固定子
と、上記双方のブラケットに支持された回転軸に固定さ
れた回転子と、この回転子のスリップリングにブラシを
圧接させるブラシ保持器と、このブラシ保持器に結合さ
れ共に上記後ブラケットに取付けられた電圧調整器とを
備えた車両用交流発電機において、 上記電圧調整装置は、調整装置フレームの収容部の一方
の開口部端にヒートシンクを固着し、このヒートシンク
に電圧調整器基板を接着し上記収容部内にしていて、収
容部に緩衝封止剤を充てんしてあり、このフレームの収
容部の他方の開口部端を上記ブラシ保持器のブラシ箱の
一端部に固着しており、このブラシ箱の一端部にはブラ
シ収容穴に貫通する空気穴を設けたことを特徴とする車
両用交流発電機。
Claim: What is claimed is: 1. A stator connected to front and rear brackets, a rotor fixed to a rotary shaft supported by both brackets, and a brush pressed onto a slip ring of the rotor. In a vehicular AC generator comprising: a brush holder for driving the brush holder; and a voltage regulator coupled to the brush holder and attached to the rear bracket, the voltage regulator includes one of the accommodating portions of the regulator frame. A heat sink is fixed to the end of the opening, the voltage regulator substrate is adhered to the heat sink so that it is inside the housing, and the housing is filled with a buffer sealant. The other opening end of the housing of the frame Is fixed to one end of a brush box of the brush holder, and an air hole penetrating the brush housing hole is provided at one end of the brush box.
JP21632791A 1991-08-01 1991-08-01 AC generator for vehicles Expired - Lifetime JP2634336B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21632791A JP2634336B2 (en) 1991-08-01 1991-08-01 AC generator for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21632791A JP2634336B2 (en) 1991-08-01 1991-08-01 AC generator for vehicles

Publications (2)

Publication Number Publication Date
JPH0538089A true JPH0538089A (en) 1993-02-12
JP2634336B2 JP2634336B2 (en) 1997-07-23

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Family Applications (1)

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JP21632791A Expired - Lifetime JP2634336B2 (en) 1991-08-01 1991-08-01 AC generator for vehicles

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100406720B1 (en) * 2000-04-19 2003-11-22 한국델파이주식회사 Connecting structure of brush holder and regulator in alternator for vehicle
US7116032B2 (en) 2001-12-11 2006-10-03 Mitsubishi Denki Kabushiki Kaisha Automotive alternator and automotive alternator brush abrasion detection system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100406720B1 (en) * 2000-04-19 2003-11-22 한국델파이주식회사 Connecting structure of brush holder and regulator in alternator for vehicle
US7116032B2 (en) 2001-12-11 2006-10-03 Mitsubishi Denki Kabushiki Kaisha Automotive alternator and automotive alternator brush abrasion detection system
US7274127B2 (en) 2001-12-11 2007-09-25 Mitsubishi Deni Kabushiki Kaisha Automotive alternator and automotive alternator brush abrasion detection system

Also Published As

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JP2634336B2 (en) 1997-07-23

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