CA2238773A1 - Improved 10si alternator housing to accommodate larger heavy duty 17si rectifier - Google Patents
Improved 10si alternator housing to accommodate larger heavy duty 17si rectifier Download PDFInfo
- Publication number
- CA2238773A1 CA2238773A1 CA002238773A CA2238773A CA2238773A1 CA 2238773 A1 CA2238773 A1 CA 2238773A1 CA 002238773 A CA002238773 A CA 002238773A CA 2238773 A CA2238773 A CA 2238773A CA 2238773 A1 CA2238773 A1 CA 2238773A1
- Authority
- CA
- Canada
- Prior art keywords
- rectifier
- housing
- alternator
- improved
- diodes
- 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.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0006—Disassembling, repairing or modifying dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
- H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
- H02K11/05—Rectifiers associated with casings, enclosures or brackets
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Briefly, high output "popular" small frame alternators have a high rate of failure due to higher heat temperatures typically caused by; 1) continuous higher rate charging, 2) lack of heat dissipation through rectifier heat sinks & diodes, 3) insufficient cooling (air exchange/air flow) through alternator and components, 4) the "plugging up" of alternator by foreign matter such as chaff, dust etc...as is common in agricultural, mining and industrial applications and therefore limiting cooling causing "burn out".
The invention consists of an improved alternator CE housing to allow for a larger rectifier with larger heat sinks (and thus its exposed surface area) and 9 50amp diodes vs. the original 6 25amp diodes (and thus increasing its current carrying capability) as well as an improved more open design in the housing and rectifier to allow for more air flow and a cooler running, more durable alternator.
The invention consists of an improved alternator CE housing to allow for a larger rectifier with larger heat sinks (and thus its exposed surface area) and 9 50amp diodes vs. the original 6 25amp diodes (and thus increasing its current carrying capability) as well as an improved more open design in the housing and rectifier to allow for more air flow and a cooler running, more durable alternator.
Description
SPECIFICATIONS
This invention relates to an improved alternator housing to allow for the installation of a larger enhanced, heavy duty rectifier and for better cooling and reliability.
It is common in high output small frame alternators to have a high rate of failure due to hotter temperatures developed in small frame alternators caused by, increased continuous high output charging capability, lack of heat dissipation through undersized rectifier heat sinks and diodes, insufficient cooling (air exchange/air flow) through alternator and components, and the plugging up of alternator by foreign matter such as chaff & dust, further limiting the cooling capabilities of the alternator.
We have found that the above factors contributing to early alternator failure can be overcome or significantly reduced. By redesigning the housing to allow for a larger rectifier with larger heat sinks (and thus its exposed surface area) and 9 50amp diodes versus the original 6 25amp diodes (and thus increasing its current carrying capability) as well as an improved more open design in the housing and rectifier to allow for more air flow and a cooler running, more durable alternator.
In pictures which illustrate embodiments of the invention, Figurelis the front and back view of the old original rectifier, Figure 2 is the front and back view of the larger improved heavy duty rectifier, Figure 3 is the inside view of the redesigned housing and Figure 4 is the back view of the redesigned housing to allow for the larger improved rectifier, Figure 5 is the inside view of the housing with the rectifier installed and Figure 6 is the back view of the housing with the rectifier installed as an alternator sub assembly.
The rectifiers illustrated, figure 1 the original rectifier, and figure 2 the larger improved rectifier clearly show the larger heat sinks (2A) as well as 3 new air flow paths (2B) for better cooling. In addition the new rectifier has 9 50 Amp diodes (2C) (6 positive & 3 negative diodes), versus the original 6 25Amp diodes (3 positive & 3 negative diodes), for increased current handling capability. A
cooler diode/rectifier assembly results in significantly increased durability.
The sub-assembly pictured, Figure 5 illustrates the new improved rectifier installed in the new housing.
Note notches (5A) in the housing to allow clearance for the larger rectifier.
The sub-assembly pictured, Figure 6 illustrates the new housing from the back view with the new heavy duty rectifier. Note the location of the thru bolts (6A) to fasten the new rectifier. Also note the added openings (6B) in the housing for extra ventilation.
This invention relates to an improved alternator housing to allow for the installation of a larger enhanced, heavy duty rectifier and for better cooling and reliability.
It is common in high output small frame alternators to have a high rate of failure due to hotter temperatures developed in small frame alternators caused by, increased continuous high output charging capability, lack of heat dissipation through undersized rectifier heat sinks and diodes, insufficient cooling (air exchange/air flow) through alternator and components, and the plugging up of alternator by foreign matter such as chaff & dust, further limiting the cooling capabilities of the alternator.
We have found that the above factors contributing to early alternator failure can be overcome or significantly reduced. By redesigning the housing to allow for a larger rectifier with larger heat sinks (and thus its exposed surface area) and 9 50amp diodes versus the original 6 25amp diodes (and thus increasing its current carrying capability) as well as an improved more open design in the housing and rectifier to allow for more air flow and a cooler running, more durable alternator.
In pictures which illustrate embodiments of the invention, Figurelis the front and back view of the old original rectifier, Figure 2 is the front and back view of the larger improved heavy duty rectifier, Figure 3 is the inside view of the redesigned housing and Figure 4 is the back view of the redesigned housing to allow for the larger improved rectifier, Figure 5 is the inside view of the housing with the rectifier installed and Figure 6 is the back view of the housing with the rectifier installed as an alternator sub assembly.
The rectifiers illustrated, figure 1 the original rectifier, and figure 2 the larger improved rectifier clearly show the larger heat sinks (2A) as well as 3 new air flow paths (2B) for better cooling. In addition the new rectifier has 9 50 Amp diodes (2C) (6 positive & 3 negative diodes), versus the original 6 25Amp diodes (3 positive & 3 negative diodes), for increased current handling capability. A
cooler diode/rectifier assembly results in significantly increased durability.
The sub-assembly pictured, Figure 5 illustrates the new improved rectifier installed in the new housing.
Note notches (5A) in the housing to allow clearance for the larger rectifier.
The sub-assembly pictured, Figure 6 illustrates the new housing from the back view with the new heavy duty rectifier. Note the location of the thru bolts (6A) to fasten the new rectifier. Also note the added openings (6B) in the housing for extra ventilation.
Claims (9)
1. An improved "10SI" alternator housing (Fig. 3 & 4) designed to be used in conjunction with a larger heavy duty improved "17SI' rectifier (Fig. 2) so that the resulting sub-assembly is pictured in figures 5 and 6.
2. In reference to claim 1, the housing in figures 3 and 4.
3. In reference to claims land 2, the small notches (3A) in the housing figure 3 allow for added clearance for the larger rectifier heat sink (2A) in fignre 2.
4. In reference to claims land 2, the extrusions (3B) in the housing figure 3 allow for the proper grounding of the larger rectifier negative heat sink (2D) in figure 2.
5. In reference to claim 1, the rectifier pictured in figure 2.
6. In reference to claims 1 and 5, the increased number of diodes to 9 (2C) in the rectifier figure 2 into the "10SI" style housing in figure 3.
7. In reference to claims 1 and 5, the air flow paths (2B) in figure 2 of the "17SI" style rectifier.
8. In reference to claims 1 and 2, the increased openings in the housing (6B) in figure 6 for added air flow.
9. In reference to claim 1, the housing pictured from the inside and back view in various stages as evident in figure 3, figure 4, figure 5 and figure 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002238773A CA2238773A1 (en) | 1998-07-06 | 1998-07-06 | Improved 10si alternator housing to accommodate larger heavy duty 17si rectifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002238773A CA2238773A1 (en) | 1998-07-06 | 1998-07-06 | Improved 10si alternator housing to accommodate larger heavy duty 17si rectifier |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2238773A1 true CA2238773A1 (en) | 2000-01-06 |
Family
ID=29275788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002238773A Abandoned CA2238773A1 (en) | 1998-07-06 | 1998-07-06 | Improved 10si alternator housing to accommodate larger heavy duty 17si rectifier |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2238773A1 (en) |
-
1998
- 1998-07-06 CA CA002238773A patent/CA2238773A1/en not_active Abandoned
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued |