rhitee05
10 kW
I got the parts of my Cyclone kit in recently and wanted to post some pictures for all to see. I know some pictures have been posted on here before, but not very recently so things may have changed. This is the 650W motor and external controller direct from Cyclone-Taiwan.
Full set of controller pics here:
http://www.flickr.com/photos/rhitee05/sets/72157622294614442/
The specs on the outside of the controller read 24V/30A, which would be 720W. Based on the component specs, it's probably the same controller used for the 900W/1200W kits, although they probably uprate a few things for 48V operation. Some detail on the innards:
- Capacitors are 50V rated. Standard can-type electrolytic 3300uF for the main input, and a few more 10uF scattered around. There's also a small-ish AC-type capacitor that I didn't get a good shot of.
- MOSFETs are IRFP064V. They seem to be the genuine article, based on comparison of the markings to IR's datasheet. These are 60V FETs in a TO-247 package rated for >100A, Rdson<5.5 milliohm. They seem quite decent actually. Not quite as good as the benchmark 4110's, but fairly close except for the voltage rating (not sure you'd want to push >60V through this controller anyhow), and the TO-247 package actually has better thermal characteristics.
- The FETs are sunk to the extruded case through a thermally-conductive, electrically-isolating pad. It's pretty thin, so the thermal performance should be decent. The extrusion of the case is decently massive, and will probably dissipate fairly well given a little airflow. There's also a small temp sensor attached to the case near the FETs.
- Shunt resistors are 3x 51 milliohm in parallel, so net shunt of 16.7 milliohms. They look like maybe 5W resistors, and they're pressed against the case with some thermal grease.
- External dimensions are 5.25"L x 5.25"W x 2.25"H (approximate). It's 6" wide including the mounting ears.
- Getting mine open was a pain in the a$$. They used steel screws into very crudely tapped holes in the aluminum extrusion. I was able to get two screws out easily enough, but number 3 required a little finesse with hammer and vise-grips. That was enough to let me rotate the panel around, but #4 isn't coming out without a saw. I'll probably pick up some stainless steel screws to replace these at some point.
Motor pictures here:
http://www.flickr.com/photos/rhitee05/sets/72157622184670601/
Not very many pictures here yet. I'm going to tear the motor open soon, once I get some degreaser, new synthetic grease, etc. to clean it up and do it right.
- The gearbox is labeled 9.33:1 ratio, which is slightly different than the 9.55:1 quoted online.
- Motor case is ~3.5" diameter, overall dimensions 3.5"W x 3.5"H x 6.5"L (including shaft and gear, about 4 5/8" long to mounting face).
- There's a small weep hole on the bottom, opposite the wire entry point.
- Interestingly, the motor rotates CW, not CCW as I expected. The standard Cyclone configuration (motor behind BB driving chain) requires CCW rotation. I assume the 650W and up kits must be intended solely for the 3-chainwheel-style kits, where it uses a separate chain to drive the BB, which needs CW rotation. My understanding is this is the same motor used in the 350W/500W kits (without internal controller), so they must swap the direction of rotation when they take out the controller.
I'm happy to e-mail full-res pictures to anyone who's interested, ~3 MB each. I'll continue to post more pictures as I tear the motor down and get my build started.
Full set of controller pics here:
http://www.flickr.com/photos/rhitee05/sets/72157622294614442/
The specs on the outside of the controller read 24V/30A, which would be 720W. Based on the component specs, it's probably the same controller used for the 900W/1200W kits, although they probably uprate a few things for 48V operation. Some detail on the innards:
- Capacitors are 50V rated. Standard can-type electrolytic 3300uF for the main input, and a few more 10uF scattered around. There's also a small-ish AC-type capacitor that I didn't get a good shot of.
- MOSFETs are IRFP064V. They seem to be the genuine article, based on comparison of the markings to IR's datasheet. These are 60V FETs in a TO-247 package rated for >100A, Rdson<5.5 milliohm. They seem quite decent actually. Not quite as good as the benchmark 4110's, but fairly close except for the voltage rating (not sure you'd want to push >60V through this controller anyhow), and the TO-247 package actually has better thermal characteristics.
- The FETs are sunk to the extruded case through a thermally-conductive, electrically-isolating pad. It's pretty thin, so the thermal performance should be decent. The extrusion of the case is decently massive, and will probably dissipate fairly well given a little airflow. There's also a small temp sensor attached to the case near the FETs.
- Shunt resistors are 3x 51 milliohm in parallel, so net shunt of 16.7 milliohms. They look like maybe 5W resistors, and they're pressed against the case with some thermal grease.
- External dimensions are 5.25"L x 5.25"W x 2.25"H (approximate). It's 6" wide including the mounting ears.
- Getting mine open was a pain in the a$$. They used steel screws into very crudely tapped holes in the aluminum extrusion. I was able to get two screws out easily enough, but number 3 required a little finesse with hammer and vise-grips. That was enough to let me rotate the panel around, but #4 isn't coming out without a saw. I'll probably pick up some stainless steel screws to replace these at some point.
Motor pictures here:
http://www.flickr.com/photos/rhitee05/sets/72157622184670601/
Not very many pictures here yet. I'm going to tear the motor open soon, once I get some degreaser, new synthetic grease, etc. to clean it up and do it right.
- The gearbox is labeled 9.33:1 ratio, which is slightly different than the 9.55:1 quoted online.
- Motor case is ~3.5" diameter, overall dimensions 3.5"W x 3.5"H x 6.5"L (including shaft and gear, about 4 5/8" long to mounting face).
- There's a small weep hole on the bottom, opposite the wire entry point.
- Interestingly, the motor rotates CW, not CCW as I expected. The standard Cyclone configuration (motor behind BB driving chain) requires CCW rotation. I assume the 650W and up kits must be intended solely for the 3-chainwheel-style kits, where it uses a separate chain to drive the BB, which needs CW rotation. My understanding is this is the same motor used in the 350W/500W kits (without internal controller), so they must swap the direction of rotation when they take out the controller.
I'm happy to e-mail full-res pictures to anyone who's interested, ~3 MB each. I'll continue to post more pictures as I tear the motor down and get my build started.