Single terminal motor question....

Reply

  #1  
Old 10-21-14, 09:59 PM
Member
Thread Starter
Join Date: Oct 2014
Location: usa
Posts: 3
Single terminal motor question....

Hello,

I am designing and building a heating system for a classic vehicle. I purchased a single terminal motor to use for the heater blower fan. My question is: since there is only one terminal on the motor I am assuming that it is "positive" and that running a wire from the metal motor platform to the chassis/frame will complete the circuit.

Hopefully, someone who has experience with these motors can confirm or correct my assumption.

Thank you for your help.
 
Sponsored Links
  #2  
Old 10-21-14, 11:32 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 51,006
Likes Received: 166
Welcome to the forums.

Your assumption is correct.
The metal shell of the motor is negative and the connection post is your positive connection.
 
  #3  
Old 10-21-14, 11:52 PM
Member
Thread Starter
Join Date: Oct 2014
Location: usa
Posts: 3
Thank you and thank you!

I appreciate you taking the time to answer my question.

Best regards.
 
  #4  
Old 10-22-14, 12:15 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 51,006
Likes Received: 166
You're welcome and good luck with the project.
 
  #5  
Old 10-22-14, 01:41 AM
pugsl's Avatar
Forum Topic Moderator
Join Date: Mar 2008
Location: Raleigh, NC
Posts: 8,271
Likes Received: 9
A lot of auto electric things (motors, ignitions systems etc)are built that way, The medal is ground, newer cars with computers sometimes have ground wires.
 
  #6  
Old 10-22-14, 03:45 AM
Member
Join Date: Jan 2013
Location: U.S.A.
Posts: 1,840
Likes Received: 31
Except that, depending on what you have, you need to confirm that your vehicle has a negative ground, rather than positive ground.
 
  #7  
Old 10-22-14, 04:44 AM
Join Date: Jun 2010
Location: Canada (near The Motor City)
Posts: 628
If the motor you purchased was originally designed for a + ground vehicle then your assumption would be wrong.

Hook it up to a battery and see if it rotates in the direction that you want. Question would then be answered.
 
  #8  
Old 10-22-14, 08:34 PM
Member
Thread Starter
Join Date: Oct 2014
Location: usa
Posts: 3
Thank you....

Thank you to all who responded....I do appreciate your help.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes