JPH01157252A - Rectifier for ac generator - Google Patents
Rectifier for ac generatorInfo
- Publication number
- JPH01157252A JPH01157252A JP21584088A JP21584088A JPH01157252A JP H01157252 A JPH01157252 A JP H01157252A JP 21584088 A JP21584088 A JP 21584088A JP 21584088 A JP21584088 A JP 21584088A JP H01157252 A JPH01157252 A JP H01157252A
- Authority
- JP
- Japan
- Prior art keywords
- container
- shaped electrode
- electrode
- silicone rubber
- rectifier
- 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
Links
- 229920005989 resin Polymers 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 34
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 15
- 229920002379 silicone rubber Polymers 0.000 abstract description 52
- 239000004945 silicone rubber Substances 0.000 abstract description 52
- 239000003822 epoxy resin Substances 0.000 abstract description 24
- 229920000647 polyepoxide Polymers 0.000 abstract description 24
- 229910000679 solder Inorganic materials 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000012856 packing Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 230000035882 stress Effects 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002984 plastic foam Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Rectifiers (AREA)
- Synchronous Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野］
本発明は、交流出力を直流出力に変換する交流発電機の
整流装置に関し、とくに車両用交流発電機の整流装置の
耐久性向上にかかわる。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a rectifying device for an alternating current generator that converts an alternating current output to a direct current output, and particularly relates to improving the durability of a rectifying device for an alternating current generator for a vehicle.
［従来の技術］
従来より車両用交流発電機の整流装置ｆ １００は、第
９図に示すごとく、交流発電機のホルダフィン１０１に
半田材１０２により固着され、冷却フィンを兼ねた容器
状電極１１０と、該容器状電極１１０内に半田材１２０
により、出力取出用リード線１３０に接続されたダイオ
ード１４０が固定され、ダイオード１４０がシリコンゴ
ム１５０により被覆されて保護されている。[Prior Art] Conventionally, as shown in FIG. 9, a rectifier f 100 for a vehicle alternator has a container-shaped electrode 110 that is fixed to a holder fin 101 of the alternator with a solder material 102 and also serves as a cooling fin. A solder material 120 is placed inside the container-shaped electrode 110.
As a result, the diode 140 connected to the output lead wire 130 is fixed, and the diode 140 is covered and protected by silicone rubber 150.
［発明が解決しようとする課題］
しかるに、上記構成の整流装置１００は、車両のエンジ
ンを作動させると、整流装置１００が通電されるため、
温度が急」−昇し、エンジンを停止すると、整流装置１
００への通電が停止されるため、温度が急降下する等の
熱サイクルにより、整流装置１００を長期間使用してい
ると経時的に、容器状電極１１０とシリコンゴム１５０
との熱膨脹係数の差による熱応力が発生し、容器状電極
１１０とシリコンゴム１５０との間の密着力が低下する
恐れがある。[Problems to be Solved by the Invention] However, in the rectifying device 100 having the above configuration, when the engine of the vehicle is operated, the rectifying device 100 is energized.
When the temperature rises rapidly and the engine is stopped, the rectifier 1
When the rectifying device 100 is used for a long period of time, the container-shaped electrode 110 and the silicone rubber 150 may become damaged over time due to a thermal cycle such as a sudden drop in temperature due to the power supply to the 00 being stopped.
Thermal stress may occur due to the difference in coefficient of thermal expansion between the container-shaped electrode 110 and the silicone rubber 150, which may reduce the adhesion between the container-shaped electrode 110 and the silicone rubber 150.
容器状電極１１０とシリコンゴム１５０との間の密着力
が低下すると、整流装置 １００では、第１０図に示す
ごとく、容器状電極１１０とシリコンゴム１５０との間
に、隙間１６０が生じ、この隙間１６０から被水等によ
り水が容器状電極１１０とリード線１３０との異極間に
浸入すると、ダイオード１４０が短絡し、整流装置１０
０の性能劣化という課題があったや本発明は、容器状電
極と樹脂との間の密着力が低下し７ても、容器状電極と
樹脂との間に隙間が発生することを確実に防止して、整
流装置の性能劣化を防止できる交流発電機の整流装置の
提供を目的とする。When the adhesion between the container-shaped electrode 110 and the silicone rubber 150 decreases, a gap 160 is generated between the container-shaped electrode 110 and the silicone rubber 150 in the rectifier 100, as shown in FIG. When water enters between the different poles of the container-shaped electrode 110 and the lead wire 130 due to water exposure from the diode 160, the diode 140 is short-circuited, and the rectifier 10
The present invention reliably prevents the formation of gaps between the container-shaped electrode and the resin even if the adhesion between the container-shaped electrode and the resin decreases. The present invention aims to provide a rectifying device for an alternator that can prevent performance deterioration of the rectifying device.
［課題を解決するための手段］
本発明の交流発電機の整流装置は、交流発電機のケース
内に装着されるホルダフィンに、底部が電気的に接続さ
れた容器状電極と、該容器状電極内に配されているとと
もに、一端が前記容器状電極に電気的に接続され、他端
が出力取出用リード線に接続された整流素子と、前記容
器状電極の内面に圧迫された状態で充填されているとと
もに、前記整流素子を被覆する電気絶縁性の樹脂とを備
えた構成を採用した。[Means for Solving the Problems] A rectifying device for an alternator according to the present invention includes a container-shaped electrode whose bottom portion is electrically connected to a holder fin mounted in a case of the alternator, and a container-shaped a rectifying element disposed within the electrode, one end electrically connected to the container-shaped electrode, and the other end connected to an output lead wire; and a rectifying element pressed against the inner surface of the container-shaped electrode. The rectifying element is filled with an electrically insulating resin that covers the rectifying element.
Ｌ作用］
本発明の交流発電機の整流装置は上記構成によりつぎの
作用を有する。L Effect] The rectifying device for an alternator according to the present invention has the following effects due to the above configuration.
電気絶縁性の樹脂を容器状電極の内面に圧迫された状態
で充填することにより整流素子を被覆しているため、容
器状電極と樹脂との間の密着力が低下した場合でも、容
器状電極と樹脂との間に隙間が生ずることが防止される
。Since the rectifying element is covered by filling the inner surface of the container-shaped electrode with electrically insulating resin in a compressed state, even if the adhesion between the container-shaped electrode and the resin decreases, the container-shaped electrode will remain intact. This prevents a gap from forming between the material and the resin.
［発明の効果］
本発明の交流発電機の整流装置は上記構成および作用に
よりつぎの効果を奏する。[Effects of the Invention] The alternating current generator rectifier of the present invention has the following effects due to the above configuration and operation.
容器状電極と電気絶縁性の樹脂との間に密着力が低下す
るか、なくなった時でも、容器状電極と樹脂との間の隙
間の発生を防止できる。よって、水の浸入を防止できる
ので、整流素子の短絡を防止でき、整流装置の性能劣化
を防止できる。Even when the adhesion between the container-shaped electrode and the electrically insulating resin decreases or disappears, the generation of a gap between the container-shaped electrode and the resin can be prevented. Therefore, since water can be prevented from entering, short-circuiting of the rectifying elements can be prevented, and performance deterioration of the rectifying device can be prevented.
［実施例］
本発明の交流発電機の整流装置の実施例を図に基づき説
明する。[Example] An example of a rectifier for an alternator according to the present invention will be described based on the drawings.
第１図は本発明の第１実施例を採用した自動車用交流発
電機（オルタネータ）の整流装置を示す。FIG. 1 shows a rectifier for an automotive alternator (alternator) employing a first embodiment of the present invention.
１はオルタネータのステータコイル（図示せず）に接続
され、そのステータコイルから出力される交流出力を直
流出力に変換する整流装置を示す。Reference numeral 1 denotes a rectifier that is connected to a stator coil (not shown) of an alternator and converts AC output output from the stator coil into DC output.
この整流装置１は、第２図に示すように、凹所１１が３
つずつ等角度間隔にプレス加：Ｌされた一対の馬蹄形状
のホルダフィン１２に、軟ろう材である半田材１３によ
り、銅等の良電導性の容器状電極２の底部２１を固着し
ている。１０はブラシホルダを示す。As shown in FIG. 2, this rectifier 1 has three recesses 11.
A pair of horseshoe-shaped holder fins 12 are pressed at equal angular intervals one by one, and the bottom part 21 of a well-conductive container-shaped electrode 2 made of copper or the like is fixed with solder material 13, which is a soft solder material. There is. 10 indicates a brush holder.
容器状電極２は、第３図にも示すごとく、底部２１より
開口２２に向って内径が漸増する側壁２３に、所定間隔
で後記するエポキシ樹脂の抜止用穴２４が周設されてい
る。この穴２４は、内側壁面２５と外側壁面２６とを貫
通して形成されているが、内側壁面２５に凹状に形成さ
れていても良い。この容器状電極２の底部２１には、他
方の電極３に接続された整流素子であるダイオード４が
固着されている。As shown in FIG. 3, the container-shaped electrode 2 has holes 24 for preventing epoxy resin from slipping out, which will be described later, provided at predetermined intervals in a side wall 23 whose inner diameter gradually increases from the bottom 21 toward the opening 22. The hole 24 is formed to penetrate the inner wall surface 25 and the outer wall surface 26, but may be formed in a concave shape in the inner wall surface 25. A diode 4, which is a rectifier connected to the other electrode 3, is fixed to the bottom 21 of the container-shaped electrode 2.
他方の電極３は、銅等の良電導性で、鍔状に形成され、
出力取出用リード線３１が・一体的に形成されている。The other electrode 3 is made of good conductivity such as copper, and is formed into a brim shape.
An output lead wire 31 is integrally formed.
ダイオード４は、容器状電極２と他方の電極３との間に
軟ろう材である半田材１４．１５によって固着され、そ
の周囲の気密を封止する本発明にかかる電気絶縁性の樹
脂であるシリコンゴム５に被覆されている。The diode 4 is fixed between the container-shaped electrode 2 and the other electrode 3 by a solder material 14.15, which is a soft soldering material, and is made of an electrically insulating resin according to the present invention that seals the surrounding area. It is covered with silicone rubber 5.
シリコンゴム５は、全方位弾性体であり、容器状電極２
の底部２１より側壁２３のほぼ中央までの間に充填され
ており、ダイオード４だけでなく、リード線３１の下端
かわや、他方の電極３も被覆している。また、シリコン
ゴム５は、容器状電極２内に注入、硬化した後、表面で
ある十、端面５１がエポキシ樹脂６に加圧され、シリコ
ンゴム５内に初期圧縮応力を発生させる。したがって、
シリコンゴム５は、弾性エネルギーにより容器状電極２
の内面に圧迫された状態で充填されるので、シリコンゴ
ム５の下端面５２および外周面５３が容器状電極２の底
部２１および側壁２３に確実に固着し、内周面５４がリ
ード線３１の下端がわおよび他方の電極３に確実に固着
する。The silicone rubber 5 is an omnidirectional elastic body, and the container-shaped electrode 2
It is filled from the bottom 21 to almost the center of the side wall 23 and covers not only the diode 4 but also the lower end of the lead wire 31 and the other electrode 3. Further, after the silicone rubber 5 is injected into the container-shaped electrode 2 and cured, the front surface and the end face 51 are pressurized by the epoxy resin 6 to generate an initial compressive stress in the silicone rubber 5. therefore,
The silicone rubber 5 is shaped like a container-shaped electrode 2 by elastic energy.
Since the inner surface of the silicone rubber 5 is filled in a compressed state, the lower end surface 52 and the outer peripheral surface 53 of the silicone rubber 5 are firmly fixed to the bottom part 21 and the side wall 23 of the container-shaped electrode 2, and the inner peripheral surface 54 of the lead wire 31 is It firmly adheres to the lower end and the other electrode 3.
エポキシ樹脂６は、熱硬化性樹脂で熱膨張率が低く、電
気絶縁性に優れており、容器状電極２内のシリコンゴム
５上に注入され、例えば高い圧力が加わる槽内等で硬化
させることにより、シリコンゴム５に残留応力を持たせ
る。またエポキシ樹脂６が容器状電極２内に充填される
高さは、容器状電極２の側壁２３の穴２４の形成位置よ
り図示上方であれば良く、穴２４の大きさは、エポキシ
樹脂６の粘性によって流出しない程度の大きさに形成さ
れている。ここで、エポキシ樹脂６は、外周面６１で容
器状電極２の側壁２３の内側壁面２５に固着され、その
外周面６１の一部には、容器状電極２の側壁２３の穴２
４に流入する複数の凸部６２が形成されている。The epoxy resin 6 is a thermosetting resin with a low coefficient of thermal expansion and excellent electrical insulation properties, and is injected onto the silicone rubber 5 inside the container-shaped electrode 2 and cured, for example, in a tank where high pressure is applied. This causes the silicone rubber 5 to have residual stress. Further, the height at which the epoxy resin 6 is filled into the container-shaped electrode 2 may be above the formation position of the hole 24 in the side wall 23 of the container-shaped electrode 2 in the figure, and the size of the hole 24 is determined by the height of the epoxy resin 6. It is formed to a size that does not allow it to flow out due to its viscosity. Here, the epoxy resin 6 is fixed to the inner wall surface 25 of the side wall 23 of the container-shaped electrode 2 at an outer peripheral surface 61, and a part of the outer peripheral surface 61 is provided with holes 25 of the side wall 23 of the container-shaped electrode 2.
A plurality of convex portions 62 flowing into the convex portion 4 are formed.
本実施例のオルタネータの整流装置１の作用を第４図お
よび第５図に基づき説明する。The operation of the alternator rectifier 1 of this embodiment will be explained based on FIGS. 4 and 5.
容器状電極２の底部２１と他方の電極３との間に、半田
材１４．１５によってダイオード４を固定し、このダイ
オード４の保護のために、シリコンゴム５を容器状電極
２内に注入し、硬化させる。A diode 4 is fixed between the bottom 21 of the container-shaped electrode 2 and the other electrode 3 with a solder material 14, 15, and silicone rubber 5 is injected into the container-shaped electrode 2 to protect the diode 4. , harden.
シリコンゴム５が硬化した後、エポキシ樹脂６を容器状
電極２内に注入し、これらを高い圧力が加わる恒温層等
に入れる。第４図のように、圧力Ｐ、がエポキシ樹脂６
に加わると、エポキシ樹脂６が下方に押圧される。この
とき、エポキシ樹脂６と同時に、シリコンゴム５の土、
端面５１にもほぼ同一の圧力Ｐ２が加わり、シリコンゴ
ム５は下方、つまり容器状電極２の底部２１および他方
の電極３に押圧される。After the silicone rubber 5 is cured, the epoxy resin 6 is injected into the container-shaped electrode 2, and these are placed in a constant temperature bath or the like where high pressure is applied. As shown in Figure 4, when the pressure P is epoxy resin 6
, the epoxy resin 6 is pressed downward. At this time, at the same time as the epoxy resin 6, the soil of the silicone rubber 5,
Almost the same pressure P2 is also applied to the end surface 51, and the silicone rubber 5 is pressed downward, that is, against the bottom 21 of the container-shaped electrode 2 and the other electrode 3.
ここで、シリコンゴム５は、全方位弾性体であるので、
圧力Ｐ、たけ下方、つまり容器状電極２の底部２１およ
び他方の電極３がわに圧ｍ＜弾性エネルギーを貯えるよ
うに弾性変形）し、さらにこのシリコンゴム５に初期圧
縮応力が発生する。この圧縮状態を保持しつつエポキシ
樹脂６を硬化させると、シリコンゴム５は、常に残留応
力Ｐ３を保有することとなる。Here, since the silicone rubber 5 is an omnidirectional elastic body,
The pressure P is below the height, that is, the bottom 21 of the container-shaped electrode 2 and the other electrode 3 (pressure m<elastic deformation to store elastic energy), and an initial compressive stress is generated in the silicone rubber 5. If the epoxy resin 6 is cured while maintaining this compressed state, the silicone rubber 5 will always have a residual stress P3.
ここで、整流袋′１１１は、自動車のエンジンを作動か
せると、整流装置１にステータコイルより交流出力が出
力され、整流装置１の温度が急」−昇する。また、エン
ジンの作動を停止すると、整流装置１への交流出力が停
止され、整流装置１の温度が急降下する等の熱サイクル
が生ずる。この熱サイクルにより、整流装置１を長期間
使用していると経時的に、容器状電極２とシリコンゴム
５との熱膨脹係数の差による熱応力が発生し、容器状電
極２とシリコンゴム５との間の密着力が低下していく。Here, in the rectifying bag '111, when the engine of the automobile is operated, AC output is output from the stator coil to the rectifying device 1, and the temperature of the rectifying device 1 rises rapidly. Further, when the operation of the engine is stopped, the AC output to the rectifier 1 is stopped, and a thermal cycle occurs in which the temperature of the rectifier 1 suddenly drops. Due to this thermal cycle, if the rectifying device 1 is used for a long period of time, thermal stress will occur over time due to the difference in the coefficient of thermal expansion between the container-shaped electrode 2 and the silicone rubber 5. The adhesion between the two is decreasing.
しかるに、本実施例では、容器状電極２の底部２１およ
び側壁２３とシリコンゴム５の下端面５２および外周面
５３との間とに密着力がなくなっても、シリコンゴム５
の弾性エネルギーにより、シリコンゴム５が容器状電極
２の内面に圧迫された状態で充填されているので、容器
状電極２の底部２１および側壁２３とシリコンゴム５の
下端面５２および外周面５３との問との隙間の発生を防
止することができる。However, in this embodiment, even if the adhesive force between the bottom 21 and side wall 23 of the container-shaped electrode 2 and the lower end surface 52 and outer peripheral surface 53 of the silicone rubber 5 is lost, the silicone rubber 5
Because the silicone rubber 5 is compressed and filled into the inner surface of the container-shaped electrode 2 due to the elastic energy of It is possible to prevent the occurrence of gaps between the two parts.
また、他方の電極３およびリード線３１とシリコンゴム
５の内周面５４との間とに密着力がなくなっても、シリ
コンゴム５の弾性エネルギーにより、シリコンゴム５が
他方の電極３およびリード線３１に圧迫された状態で充
填されているので、他方の電極３およびリード線３１と
シリコンゴム５の内周面５４との隙間の発生を防止する
ことができる。Furthermore, even if the adhesion force between the other electrode 3 and lead wire 31 and the inner circumferential surface 54 of the silicone rubber 5 is lost, the elastic energy of the silicone rubber 5 causes the silicone rubber 5 to 31 is filled in a compressed state, it is possible to prevent a gap from forming between the other electrode 3 and lead wire 31 and the inner circumferential surface 54 of the silicone rubber 5.
したがって、被水等による水の浸入を防止することがで
きるとともに、水の毛細管現象を防止することができる
ので、容器状電極２と他方の電極３との異種間への水の
浸入を防止することができる。このため、ダイオード４
の短絡を防止することができ、整流装置１の性能劣化を
防止できる。Therefore, it is possible to prevent the infiltration of water due to water exposure, etc., and also to prevent the capillary phenomenon of water, thereby preventing the intrusion of water into the dissimilarity between the container-shaped electrode 2 and the other electrode 3. be able to. For this reason, diode 4
Short circuits can be prevented, and performance deterioration of the rectifier 1 can be prevented.
さらに、容器状電極２の側壁２３とエポキシ樹脂６の外
周面６１との間に密着力がなくなって、第５図で示すご
とく、容器状電極２とエポキシ樹脂６との間に隙間ａが
生じたとしても、容器状電極２の側壁２３の穴２４に流
入する凸部６２によって、エポキシ樹脂６は上方への移
動を機械的に係止され、エポキシ樹脂６によりシリコン
ゴム５は、圧縮状態を保持し続け、残留応力Ｐ、を失う
ことがない。Further, the adhesion between the side wall 23 of the container-shaped electrode 2 and the outer peripheral surface 61 of the epoxy resin 6 is lost, and a gap a is created between the container-shaped electrode 2 and the epoxy resin 6, as shown in FIG. However, the epoxy resin 6 is mechanically stopped from moving upward by the convex portion 62 flowing into the hole 24 of the side wall 23 of the container-shaped electrode 2, and the epoxy resin 6 prevents the silicone rubber 5 from being compressed. It continues to be held and does not lose the residual stress P.
したがって、容器状電極２の底部２１および側壁２３と
シリコンゴム５の下端面５２および外周面５３との隙間
の発生を防止する効果を失うことなく、整流装置１の耐
久性を向上することができる。また、リード線３１の下
端がわおよび他方の電極３とシリコンゴム５の内周面５
４との隙間の発生を防止する効果を失うことなく、整流
装置１の耐久性を向上することもできる。Therefore, the durability of the rectifier 1 can be improved without losing the effect of preventing the generation of a gap between the bottom 21 and side wall 23 of the container-shaped electrode 2 and the lower end surface 52 and outer peripheral surface 53 of the silicone rubber 5. . Also, the lower end of the lead wire 31 and the inner circumferential surface 5 of the other electrode 3 and the silicone rubber 5 are connected to each other.
It is also possible to improve the durability of the rectifying device 1 without losing the effect of preventing the occurrence of a gap between the rectifying device 1 and the rectifying device 1.
第６図は本発明の第２実施例に採用されたオルタネータ
の整流装置を示す。FIG. 6 shows an alternator rectifier adopted in a second embodiment of the present invention.
（第１実施例と同−機能物は同番号を付す）本実施例の
整流装置１は、内側に折曲げられた折曲部２８を予め開
口２２に周設または開口２２の一部に形成した容器状電
極２を設けている。この容器状電極２の底部２１と他方
の電極３との間に、半田材１４．１５によってダイオー
ド４を固定し、このダイオード４の保護のために、シリ
コンゴム５を容器状電極２内に注入し、硬化させる。シ
リコンゴム５の硬化後、エポキシ樹脂６を注入し、シリ
コンゴム５を加圧した状態で硬化している。(Same as the first embodiment - functional objects are given the same numbers) In the rectifying device 1 of this embodiment, an inwardly bent bent portion 28 is provided around the opening 22 or formed in a part of the opening 22 in advance. A container-shaped electrode 2 is provided. A diode 4 is fixed between the bottom 21 of the container-shaped electrode 2 and the other electrode 3 with a solder material 14, 15, and silicone rubber 5 is injected into the container-shaped electrode 2 to protect the diode 4. and harden. After the silicone rubber 5 is cured, an epoxy resin 6 is injected, and the silicone rubber 5 is cured under pressure.
本実施例の整流装置１は、第１実施例と同様の作用およ
び効果を有する。The rectifier 1 of this embodiment has the same functions and effects as those of the first embodiment.
第７図は本発明の第３実施例に採用されたオルタネータ
の整流装置を示す。FIG. 7 shows an alternator rectifier adopted in a third embodiment of the present invention.
（第１実施例と同−機能物は同番号を付す）本実施例で
は、オルタネータのケーシング等の固定部材７に、シリ
コンゴム５を加圧する加圧部材７１を設けている。(The same functional objects as in the first embodiment are given the same numbers.) In this embodiment, a pressurizing member 71 for pressurizing the silicone rubber 5 is provided on a fixing member 7 such as an alternator casing.
本実施例の整流装置１は、シリコンゴム５の硬化後、整
流装置１を固定部材７に取付ける際に、加圧部材７１に
よりシリコンゴム５を加圧することによって、容器状電
極２の内面に圧迫された状態で充填され、容器状電極２
とシリコンゴム５との間の密着力が低下しても隙間が生
じないようにしている。この第３実施例では、エポキシ
樹脂は存在しない。The rectifying device 1 of this embodiment is configured such that, after the silicone rubber 5 has hardened, when the rectifying device 1 is attached to the fixing member 7, the silicone rubber 5 is pressurized by the pressure member 71, thereby applying pressure to the inner surface of the container-shaped electrode 2. The container-shaped electrode 2 is filled with
Even if the adhesion between the silicone rubber 5 and the silicone rubber 5 decreases, no gap will be formed. In this third example, no epoxy resin is present.
第８図は本発明の第４実施例に採用されたオルタネータ
の整流装置を示す。FIG. 8 shows an alternator rectifier adopted in a fourth embodiment of the present invention.
（第１実施例と同−機能物は同番号を付す）本実施例の
整流装置１の容器状電極２は、開口２２に向かって内径
が漸減するように絞られた円錐状側壁２３１を側壁２３
の図示上方に周設するとともに、内側に曲げ込まれた嵌
合部２２１を開口２２に周設している。(The same functional objects as in the first embodiment are given the same numbers.) The container-shaped electrode 2 of the rectifier 1 of this embodiment has a conical side wall 231 narrowed so that the inner diameter gradually decreases toward the opening 22. 23
A fitting portion 221 is provided around the opening 22 and is bent inward.
また、本実施例では、電気絶縁性の樹脂として発泡樹脂
（プラスチフス・フオーム） ８を採用しており、容器
状電極２の内面に圧迫された状態で充填されている。こ
の発泡樹脂８は、樹脂中に生じた気泡が互いに連続して
いないウレタンフオーム、シリコンゴムのフオーム製品
等を用いる。Further, in this embodiment, a foamed resin (plastic foam) 8 is used as the electrically insulating resin, and is filled in the inner surface of the container-shaped electrode 2 in a compressed state. This foamed resin 8 is made of urethane foam, silicone rubber foam, or the like, in which the air bubbles formed in the resin are not continuous with each other.
さらに、容器状電極２の開口２２には、電気絶縁性、耐
塩水性および耐油性に優れたフッ素ゴム等の弾性パツキ
ン９が取付けられている。Furthermore, an elastic packing 9 made of fluororubber or the like having excellent electrical insulation, salt water resistance, and oil resistance is attached to the opening 22 of the container-shaped electrode 2.
このパツキン９の外周には、容器状電極２の嵌合部２２
１に嵌合、密着する嵌合部９１が周設されている。パツ
キン９の内周には、他方の電極３のリード線３１を挿通
するとともに、リード線３１の外径より径が小さい締め
代を有する穴９２が形成されている。A fitting portion 22 of the container-shaped electrode 2 is provided on the outer periphery of the packing 9.
A fitting portion 91 that fits into and comes into close contact with 1 is provided around the periphery. A hole 92 is formed in the inner periphery of the packing 9, through which the lead wire 31 of the other electrode 3 is inserted, and which has a tightening margin smaller in diameter than the outer diameter of the lead wire 31.
本実施例の整流装置１は、容器状電極２内に発泡樹脂８
を挿入するとともに、パツキン９を容器状電極２の開口
２２に装着することによって、発泡樹脂８をパツキン９
により容器状電極２内に密関する。The rectifier 1 of this embodiment has a foamed resin 8 inside the container-shaped electrode 2.
by inserting the foamed resin 8 into the packing 9 and attaching the packing 9 to the opening 22 of the container-shaped electrode 2.
It is closely connected to the inside of the container-shaped electrode 2.
そして、熱または他の手段により発泡樹脂８を発泡、硬
化することによって、発泡樹脂８が膨脹し、容器状電極
２およびパツキン９の内面に圧迫された状態で充填され
る。Then, by foaming and hardening the foamed resin 8 using heat or other means, the foamed resin 8 expands and is filled into the inner surfaces of the container-shaped electrode 2 and the packing 9 in a compressed state.
よって、容器状電極２の内部圧力が外部圧力より高くな
り、容器状電極２の嵌合部２２１とパツキン９の嵌合部
９１との接触面に高い圧力が加わる。Therefore, the internal pressure of the container-shaped electrode 2 becomes higher than the external pressure, and high pressure is applied to the contact surface between the fitting part 221 of the container-shaped electrode 2 and the fitting part 91 of the packing 9.
このため、容器状電極２およびリード線３１と発泡樹脂
８との間に隙間の発生を防止することができる。Therefore, it is possible to prevent a gap from forming between the container-shaped electrode 2 and the lead wire 31 and the foamed resin 8.
したがって、本実施例も第１実施例と同様な効果を得る
ことができる。Therefore, this embodiment can also obtain the same effects as the first embodiment.
［その他の実施例］
本実施例では、容器状電極の側壁にエポキシ樹脂の抜止
用穴を設けたり、容器状電極の開口に折曲部を設けたが
、容器状電極の側壁に、内側に突出する凸部を周設また
は一部に設けても良い。[Other Examples] In this example, a hole was provided in the side wall of the container-shaped electrode to prevent the epoxy resin from coming out, and a bent part was provided in the opening of the container-shaped electrode. A protruding convex portion may be provided around the periphery or in a part.
本実施例では、シリコンゴムを加圧する手段として、エ
ポキシ樹脂、固定部材に設けた加圧部材や弾性パツキン
を用いたが、シリコンゴム硬化後、容器状電極の側壁を
かしめてシリコンゴムを直接加圧しても良く、エポキシ
樹脂以外の樹脂や他の加圧部材を用いても良い。In this example, an epoxy resin, a pressure member provided on a fixing member, and an elastic packing were used as means for pressurizing the silicone rubber. After the silicone rubber hardens, the side wall of the container-shaped electrode is caulked and the silicone rubber is directly applied. Pressure may be used, or a resin other than epoxy resin or another pressure member may be used.
本実施例では、電気絶縁性の樹脂としてシリコンゴムを
用いたが、電気絶縁性の樹脂としてシリコンゴム以外の
樹脂製弾性体を用いても良い。In this embodiment, silicone rubber is used as the electrically insulating resin, but an elastic resin body other than silicone rubber may be used as the electrically insulating resin.
本実施例では、電気絶縁性の樹脂として発泡樹脂を用い
たが、電気絶縁性の樹脂として発泡以外の方法で膨張す
る樹脂を用いても良い。In this embodiment, a foamed resin is used as the electrically insulating resin, but a resin that expands by a method other than foaming may also be used as the electrically insulating resin.
本実施例では、容器状電極とホルダフィン、容器状電極
と整流素子、整流素子と出力取出用リード線との接続方
法として軟ろう付（半田付）を用いたが、硬ろう付を用
いても良い。In this example, soft brazing (soldering) was used to connect the container-shaped electrode and the holder fin, the container-shaped electrode and the rectifying element, and the rectifying element and the output lead wire. Also good.
第１図ないし第５図は本発明の交流発電機の整流装置の
第１実施例を示す、第１図は第２図のＡ−Ａ断面図、第
２図はオルタネータの整流装置を示す斜視図、第３図は
オルタネータの整流装置の容器状電極を示す斜視図、第
４図はオルタネータの整流装置のシリコンゴムの加圧状
態を示す断面図、第５図はオルタネータの整流装置にお
いて容器状電極とエポキシ樹脂との間に隙間が生じた状
態を示す断面図である。
第６図は本発明の第２実施例のオルタネータの整流装置
を示す断面図、第７図は本発明の第３実施例のオルタネ
ータの整流装置を示す側面図、第８図は本発明の第４実
施例のオルタネータの整流装置を示す断面図である。
第９図は従来の交流発電機の整流装置を示す断面図、第
１０図は従来の交流発電機の整流装置において容器状電
極とシリコンゴムとの間に隙間が生じた状態を示す断面
図である。
図中
１・・・車両用交流発電機（オルタネータ）の整流装置
２・・・容器状電極 ３・・・他方の電極 ４・・・
ダイオード（整流素子） ５・・・シリコンゴム（電
気絶縁性の樹脂） ６・・・エポキシ樹脂 ８・・・
発泡樹脂（電気絶縁性の樹脂）１２・・・ホルダフィン
３１・・・出力取出用リード線1 to 5 show a first embodiment of a rectifying device for an alternator according to the present invention, FIG. 1 is a sectional view taken along line A-A in FIG. 2, and FIG. 2 is a perspective view showing a rectifying device for an alternator. 3 is a perspective view showing the container-shaped electrode of the alternator rectifier, FIG. 4 is a sectional view showing the pressurized state of silicone rubber in the alternator rectifier, and FIG. 5 is a container-shaped electrode in the alternator rectifier. FIG. 3 is a cross-sectional view showing a state where a gap is created between the electrode and the epoxy resin. FIG. 6 is a sectional view showing a rectifying device for an alternator according to a second embodiment of the present invention, FIG. 7 is a side view showing a rectifying device for an alternator according to a third embodiment of the present invention, and FIG. FIG. 4 is a sectional view showing a rectifying device for an alternator according to a fourth embodiment. Figure 9 is a cross-sectional view showing a conventional rectifier for an alternator, and Figure 10 is a cross-sectional view showing a conventional rectifier for an alternator in which a gap is created between the container-shaped electrode and the silicone rubber. be. In the figure 1... Rectifier of a vehicle alternator (alternator) 2... Container-shaped electrode 3... Other electrode 4...
Diode (rectifier) 5... Silicone rubber (electrical insulating resin) 6... Epoxy resin 8...
Foamed resin (electrical insulating resin) 12... Holder fin 31... Lead wire for output output
Claims (1)
ィンに、底部が電気的に接続された容器状電極と、 （ｂ）該容器状電極内に配されているとともに、一端が
前記容器状電極に電気的に接続され、他端が出力取出用
リード線に電気的に接続された整流素子と、 （ｃ）前記容器状電極の内面に圧迫された状態で充填さ
れているとともに、前記整流素子を被覆する電気絶縁性
の樹脂と を備えた交流発電機の整流装置。[Scope of Claims] 1) (a) a container-shaped electrode whose bottom portion is electrically connected to a holder fin installed in the case of an alternator; (b) a container-shaped electrode disposed within the container-shaped electrode; (c) a rectifying element having one end electrically connected to the container-shaped electrode and the other end electrically connected to the output lead wire; (c) being pressed against the inner surface of the container-shaped electrode; A rectifying device for an alternator, comprising an electrically insulating resin filled with resin and covering the rectifying element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63215840A JP2745554B2 (en) | 1987-09-02 | 1988-08-30 | Rectifier for AC generator and method of manufacturing the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-219723 | 1987-09-02 | ||
| JP21972387 | 1987-09-02 | ||
| JP63215840A JP2745554B2 (en) | 1987-09-02 | 1988-08-30 | Rectifier for AC generator and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01157252A true JPH01157252A (en) | 1989-06-20 |
| JP2745554B2 JP2745554B2 (en) | 1998-04-28 |
Family
ID=26521083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63215840A Expired - Fee Related JP2745554B2 (en) | 1987-09-02 | 1988-08-30 | Rectifier for AC generator and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2745554B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5886403A (en) * | 1996-08-08 | 1999-03-23 | Denso Corporation | Sealed rectifier |
| US6160309A (en) * | 1999-03-25 | 2000-12-12 | Le; Hiep | Press-fit semiconductor package |
| US6958557B2 (en) | 2001-03-29 | 2005-10-25 | Denso Corporation | Vehicle ac generator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519625U (en) * | 1974-07-05 | 1976-01-24 | ||
| JPS544332U (en) * | 1977-06-13 | 1979-01-12 | ||
| JPS553645A (en) * | 1978-06-23 | 1980-01-11 | Toshiba Corp | Semiconductor rectifier |
-
1988
- 1988-08-30 JP JP63215840A patent/JP2745554B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS519625U (en) * | 1974-07-05 | 1976-01-24 | ||
| JPS544332U (en) * | 1977-06-13 | 1979-01-12 | ||
| JPS553645A (en) * | 1978-06-23 | 1980-01-11 | Toshiba Corp | Semiconductor rectifier |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5886403A (en) * | 1996-08-08 | 1999-03-23 | Denso Corporation | Sealed rectifier |
| US6160309A (en) * | 1999-03-25 | 2000-12-12 | Le; Hiep | Press-fit semiconductor package |
| US6958557B2 (en) | 2001-03-29 | 2005-10-25 | Denso Corporation | Vehicle ac generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2745554B2 (en) | 1998-04-28 |
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