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Hello All,
I am new here i found the place after a google search and wondered if someone could help with my predicament.~
I have a fat tyre ebike, it hsa 2 500w motors, wired to 2 seperate 22a -/+2a 48v presumably one for the back and one for the front.
anyway last year i opened the bottom box up to take a look and found that the 3 phase wires had melted through the insulation on the crimp connectors that were used when it was built.
anyway i replaced these with 32 amp connectors that had a high tempurature resistance on the plastic and this sorted me out.
however fast forward a year later and i decided to do a checkup on it. i found that now all the hotglue they put into all the connectors etc had melted. stuck everything together. the connectors are fine didnt melt them but im thinking that the heat these wires are giving off shouldnt be happening at all and wondering if anyone had an idea what it could be.
anyway i figured it could be the connectors so i took them off and directly soldered the wires together instead. i got back from work today with the plan ill check it to see how hot its getting. and i found it was hitting 80 degrees c. see thermal image below.
now im thinking that the issue could be
I am new here i found the place after a google search and wondered if someone could help with my predicament.~
I have a fat tyre ebike, it hsa 2 500w motors, wired to 2 seperate 22a -/+2a 48v presumably one for the back and one for the front.
anyway last year i opened the bottom box up to take a look and found that the 3 phase wires had melted through the insulation on the crimp connectors that were used when it was built.
anyway i replaced these with 32 amp connectors that had a high tempurature resistance on the plastic and this sorted me out.
however fast forward a year later and i decided to do a checkup on it. i found that now all the hotglue they put into all the connectors etc had melted. stuck everything together. the connectors are fine didnt melt them but im thinking that the heat these wires are giving off shouldnt be happening at all and wondering if anyone had an idea what it could be.
anyway i figured it could be the connectors so i took them off and directly soldered the wires together instead. i got back from work today with the plan ill check it to see how hot its getting. and i found it was hitting 80 degrees c. see thermal image below.
now im thinking that the issue could be
- Needs better wriing, maybe a better guage.
- Controller is causing it. (not suitable for the load on the wires)