US4543504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric current rectifier
Assignee: Mitsubishi Electric Corp
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Filing: 1983-11-14
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Granted: 1985-09-24
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Expires: 2003-11-14
Abstract
Abstract A rectifier has a pair of heat dissipating plates at the positive (+) side and the negative (-) side which constitute a full-wave rectification circuit and are positioned in mutual confrontation with a small gap between them, and an insulating material to electrically insulate the both heat dissipating plates. A recessed portion is formed in each of the mutually opposed parts of the both heat dissipating plates; a noise-preventing capacitor element is housed in a closed space defined by the recessed portions to make an outer covering for the capacitor, and the capacitor element and each of the heat dissipating plates are electrically connected.
Inventors
- 👤 Yoshiyuki Iwaki
- 👤 Hideo Imori
- 👤 Hitoshi Gotou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:32
CPC Classifications
H; H10; H10W; H10W44/00; H10W44/601; H02; H02K; H02K11/00; H02K11/04; H02K11/049; H02K11/05; H10W90/00; H02K11/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
A rectifier having a pair of heat dissipating plates at the positive (+) side and the negative (-) side which constitute a full-wave rectification circuit and are positioned in mutual confrontation with a small gap between them, and an insulating material to electrically insulate the both heat dissipating plates, characterized in that a recessed portion is formed in each of the mutually opposed parts of said both heat dissipating plates, then a noise-preventing capacitor element is housed in a closed space defined by said recessed portions to make an outer covering for said capacitor, and said capacitor element and each of said heat dissipating plates are electrically connected.
Claim 2
Dependent Claim
108 words
A rectifier having a pair of heat dissipating plates at the positive (+) side and the negative (-) side which constitute a full-wave rectification circuit and are positioned in mutual confrontation with a small gap between them, and an insulating material to electrically insulate the both heat dissipating plates, characterized in that a recessed portion is formed in each of the mutually opposed parts of said both heat dissipating plates, then a noise-preventing capacitor element is housed in a closed space defined by said recessed portions to make an outer covering for said capacitor, and said capacitor element and each of said heat dissipating plates are electrically connected.
Claim 3
Dependent Claim
18 words
The rectifier as set forth in claim 1 wherein said heat dissipating plates are made of die-cast aluminum.
Claim 4
Dependent Claim
32 words
The rectifier as set forth in claim 1 wherein the recessed portions of said heat dissipating plates are respectively formed at portions projecting from the body parts of said heat dissipating plates.
Claim 5
Dependent Claim
51 words
The rectifier as set forth in claim 2, wherein said insulating material is made up by an insulative member for insulating the body parts of said heat dissipating plates from each others and a insulating plate for insulating the outer edge of the entrance of said recessed portions in mutual confrontation.
Claim 6
Dependent Claim
36 words
The rectifier as set forth in claim 3, wherein a groove is formed in the outer edge of the entrance of said recessed portion of each of said heat dissipating plates to hold said insulating plate.
Claim 7
Dependent Claim
20 words
The rectifier as set forth in claim 4, wherein said insulating plate is a gasket having an O-ring portion therein.
Claim 8
Dependent Claim
34 words
The rectifier as set forth in claim 1, wherein said heat dissipating plates between which the insulating plate and the insulative member are respectively interposed, are fixed to the bracket of an a.c. generator.
Claim 9
Dependent Claim
43 words
The rectifier as set forth in claim 6, wherein the negative (-) side of said heat dissipating plate is electrically connected to said bracket to be grounded so that electrical power is obtainable from the positive (+) side of said heat dissipating plate.
References Cited (Backward Citations)
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Cited
US4065686A
Cited
US4189653A
Cited
US4268770A
Cited
US4419597A
Cited
US4489374A
Cited
US4459499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-23 | 1989-03-25 | 1989-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-23 | 1993-03-25 | 1993-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-23 | 1997-03-25 | 1997-09-24 | $7700.00 | Window Closed / Lapsed |