05-27-2016, 04:29 PM | #11 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,183
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Re: Motor heat
Heat generated inside the motor is almost all from Armature Amps * Armature resistance. Bad brushes increase the Armature Resistance and therefor you get more heat. Better motors have larger brushes with more contact area to reduce the heating.
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05-27-2016, 05:57 PM | #12 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Motor heat
PQ will add cooling fins for about $100.
http://www.plumquick.com/motors-and-...-cooling-fins/ I have no info about how effective they are. |
05-27-2016, 06:20 PM | #13 |
Gone Wild
Join Date: Dec 2015
Location: Texas
Posts: 526
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EMP can put a temperature sensor inside the motor to alert you to overheat.
Sent from my Nexus 6 using Tapatalk |
05-27-2016, 06:25 PM | #14 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: Motor heat
D&D can do these things too, Thermostat and vented street motors that dissipate heat.
It costs extra but you guys might benefit. |
05-27-2016, 06:37 PM | #15 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Motor heat
Quote:
------- The threshold of perception of temperature varies greatly among individuals, as does the temperature required to produce first degree burns (Reddening of the skin) with a 0.5 second contact. When I was a practicing Clinical Engineer, I read the ANSI/ISO standards on the subject and they read like prenuptial contracts between politicians with law degrees in opposing political parties. |
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05-27-2016, 06:46 PM | #16 | ||
Gone Wild
Join Date: Sep 2015
Posts: 572
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Re: Motor heat
Quote:
Quote:
I just ordered some temp tape. I'm hoping that it's not that hot and I'm worried for nothing. |
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05-27-2016, 09:36 PM | #17 |
Gone Wild
Join Date: Apr 2016
Location: Greenwood, SC
Posts: 1,291
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Re: Motor heat
Wouldn't it be easier to hit it with an infrared gun after a long ride to see temp as it will be hottest then
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05-28-2016, 08:19 AM | #18 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,183
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Re: Motor heat
I added a temperature probe to my monitoring system after I installed my new D&D motor and I was very happy to see that the new motor isn't running hot at all. My stock Hitachi motor was running much hotter and it eventually cooked. I have an ambient temperature probe too so my readout includes both temps.
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05-28-2016, 09:04 AM | #19 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Motor heat
Quote:
What gadget(s) are you using for temperature monitoring? I'm using a thermocouple plugged into a DMM and the lead-wire is relatively short, so I have to leave the DMM in the sweater basket. I want to install a readout so I can see it without twisting my head around. I have a panel that fits in the ball holder that is blank except for a lighter outlet and will probably surface mount the readout on it so it can be easily removed to change batteries. |
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05-28-2016, 09:43 AM | #20 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,183
|
Re: Motor heat
SepEx - Yamaha YDRE, Lithium batteries, D&D motor, Alltrax XCT 500A controller.
I built my own Audrino based monitoring system with a 20 char by 4 line display. I use temperature probes that transmit digital signals to the Audrino. My monitor also displays date and time, Speed in MPH, Battery Volts and Current and SOC%. I have another screen that displays the individual battery voltages (14 of them) The temperature probes use a solid state sensor. (DS18B20) These things are nice and accurate and they have their own A/D converter. They talk on a "one wire" interface. |
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