tenshock brushless motors

[What's_nitro?]

Originally Posted by nitrostarter

Hmm, so even with less mass of the the TS motor, it is still performing almost as good as the Lehner.

I've never understood the correlation between a motor's mass and power output. Even on the OSE site, they pitched the KB45XL motors as "having enough mass to push large boats". There just isn't any direct relationship between the two.

[littlegiant]

I suppose having a lower rotating mass that produces the same torque is better . This usually translate to better efficiency.

some more:

Tenshock TS CZ 2200-9 und 2240-0

Nach den vielversprechenden Tests der eher LiPo orientierten 8-Winder hier die etwas zahmeren 9 Winder für den Einsatz mit LiFePo. Beide diesmal ab Werk mit Aluminium-Vollmantelkühlung

2220-9
Ri: 6,5mOhm
ca. 3530rpm/V Leerlauf an Jive mit Timing Auto-5°
Io 8V: 2,8A
Io 9V: 3,0A

rechnet man den theoret. Kurzschlußstrom Ik aus und setzt den ins Verhältnis zum Leerlaufstrom liegt diese Exemplar im Vergleich zu meinem 8-Winder im Wirkungsgrad sogar noch minimal besser.

2240-9

Ri 12mOhm
ca. 1730rpm/V Leerlauf an Jive mit Timing Auto-5°
Io 15V: 2,4A

Ik/Io Verhältnis und Wirkungsgrad entsprechen dem 2240-8.


Wieder zwei prima Treiblinge, die gemessenen Werte decken sich mit den Hochrechnungen aus den 8-Windern. Sehr gute, konstante Qualität zum fairen Preis.

Tenschock CZ1530-7 und 1540-5 vs. LMT 1530-7

LMT ( 166g, 2 Pol):
Ri: 6,7mOhm
Io: 2,3A (8V)
Lastdrehzahl: 3800rpm/V bei 50A

CZ 1530-7 (143g, 4Pol):
Ri: 6,8mOhm
Io: 3,0A
Lastdrehzahl: 3650rpm/V bei 50A

CZ 1540-5 (181g, 4Pol):
Ri: 5,3mOhm
Io: 4,5A
Lastdrehzahl: 3800rpm/V 50A

Meßwerte.
Der TS 1530-7 liegt im Wirkungsgrad bei Vollast ca. 1,5% und bei 80% Teillast etwa 3% unter dem LMT. Vergleiche mit Hacker, Mega und Kontronik bitte selber ziehen....und mal auf den Preis schauen.
Bei gleichem machbarem Leistungsdurchsatz ist er ca. 15% leicher als der LMT.

Der TS 1540-5 ist für einen Strombereich ab 60A aufwärts ausgelegt und vermutlich der derzeit stärkste 480er XXL überhaupt. Die Hydro-1 LiPo Fans wirds freuen. Bei meinen Messungen mit ca. 50A ist er noch nicht im optimalen Bereich und schneidet bei Vollast gut 1% schlechter ab als der 1530-7.
Bei Teillast sind es nur 0,5% weniger, vermutlich weil die Magneten zweiteilig statt nur einteilig wie beim 1530-7 ausgeführt sind.

Timingempfehlung:
Kontronik: Auto-5°
Roxxy: 5-10°

[himalaya]

Tenshock is an RC boat manufacturer, it's original Chinese name "腾翔" pronouces pretty close to its English name but means"to take off and fly free". Usually boat makers manufacture only hulls, but Tenshock seems to make everything on their own. Not bad we now have more to choose from, no doubt you guys will see more and more China made motors to come, may not be as stupidly cheap as previous ones but def more worthy to every cent to spent.

because a 6-pole motor has more torque than a 4-pole, will a 6-pole motor draw less amp's than an equivalent 4-pole motor?

the 2740 motor isn't a 6 pole as stated in the catalog, but it's a 8-pole 45x60 motor...

[littlegiant]

Originally Posted by drkdgglr

the 2740 motor isn't a 6 pole as stated in the catalog, but it's a 8-pole 45x60 motor...

Are the rotors wrapped with some kind of material to prevent the magnets from seperating at high rpms?

I have no idea. Here's a pic from their site of a 22 series

[littlegiant]

Originally Posted by drkdgglr

I have no idea. Here's a pic from their site of a 22 series

Doesn't look like there's any wrapping.

[himalaya]

Originally Posted by littlegiant

Doesn't look like there's any wrapping.

they have no fiber wrapping at all. The magnetics are wedged into the steel core, so the core's edges hold them in place. This is totally different from all others that I saw. I can take some detailed picture if you guys like to.

here's another, don't know which motor this is:


more motors:

[lutach]

I've been speaking with Tenshock for a while now and they told me they had no plans for a car motor. I guess I was wrong. I was supposed to get some samples but they never sent them out. Their design looks good and the only problem is the price which seems to be up there for an Asian company.

[himalaya]

Originally Posted by lutach

I've been speaking with Tenshock for a while now and they told me they had no plans for a car motor. I guess I was wrong. I was supposed to get some samples but they never sent them out. Their design looks good and the only problem is the price which seems to be up there for an Asian company.

That doesn't make sense cos several car motors are already listed in their 2009 catalog. see the link at #1 post.

Originally Posted by himalaya

That doesn't make sense cos several car motors are already listed in their 2009 catalog. see the link at #1 post.

thats probably why he said "I guess I was wrong".

Just got some more info:
- the motors are handwound;
- the stators are individually balanced by machine.

[lutach]

Originally Posted by himalaya

That doesn't make sense cos several car motors are already listed in their 2009 catalog. see the link at #1 post.

I can forward all the e-mails and MSN messeges to you if you like. I'm just saying it's kind of wrong since they had no plans for a car motor, but all of a sudden they have them. I gave them a lot of information and even mentioned a few other things which they didn't add to their motor (Which is good).