QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

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Ddt
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by Ddt » Oct 26, 2017 6:35 pm

madin88 wrote:
Ddt wrote:Hello

One big UP for start for better quality 35h 1000w hub motor!
The QUALITY of QS motors is quite good ;)
What they should improve is the weight and peak ETA. Since many years nothing happened here.
I believe one of the reasons is that many buyers want to buy cheap and have "tight is right" mentality instead of paying a bit more for an optimized product.
But on the other hand a reduce of the mass would be good for the handling/suspension.

More and more going to mid-drive setup because of that.
Hello madin88

The BIG UP are for start a V2/V3 35h motor because talking with vito he need see how many our interest are,for start the alloy stator mold.
For me best setup are bend V3 magnet,steel stator with statorate and hubsink.
However
BIG UP

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icherouveim
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by icherouveim » Oct 27, 2017 12:54 am

Ddt wrote:
madin88 wrote:
Ddt wrote:Hello

One big UP for start for better quality 35h 1000w hub motor!
The QUALITY of QS motors is quite good ;)
What they should improve is the weight and peak ETA. Since many years nothing happened here.
I believe one of the reasons is that many buyers want to buy cheap and have "tight is right" mentality instead of paying a bit more for an optimized product.
But on the other hand a reduce of the mass would be good for the handling/suspension.

More and more going to mid-drive setup because of that.
Hello madin88

The BIG UP are for start a V2/V3 35h motor because talking with vito he need see how many our interest are,for start the alloy stator mold.
For me best setup are bend V3 magnet,steel stator with statorate and hubsink.
However
BIG UP
Yes this is what I'm saying!!
We need a V3 35H from QS motors and it will be a hot seller product for low power builds.
Why does it take too long for them to answer ?

Speedtospare
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by Speedtospare » Nov 10, 2017 8:08 pm

I messaged you on your website. how do I order QS Motor 3000W 205 50H V3 that are on sale? do you offer one laced with rim?

Thanks

Ryan

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Cricket_Swe
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by Cricket_Swe » Nov 18, 2017 7:34 am

Hello people! I've been trying in vain to try and find some sort of wiring diagram for the QS 205 motor to connect to the max-e. Could someone help point me in the right direction? And if there is no such thing, could someone help identify what these wires are for so I can figure it out?


First set of wires:

Image


Second set of wires:

Image

Any help is appreciated!!

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John Bozi
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by John Bozi » Nov 18, 2017 3:08 pm

your halls
halls.jpg


the see through one is the thermo

notice set one pattern on the left equals the ones on the right.

For example purple is green

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Luk
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by Luk » Nov 18, 2017 5:19 pm

Hello

You need to connect only one set to the max-E plug .

You can use 1to 6 set or 7to12 set .

Most of the time we use 7to 12 set color :
red = +
black = -
blue, green and red are hall sensor
Number 9 is the thermo sensor .

For the 1 to 6 set :
orange = +
brown = -
number 6 is the thermo sensor .
Other 3 colors are hall sensor .
Luk-ebike.fr

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Cricket_Swe
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by Cricket_Swe » Nov 19, 2017 3:58 am

Thanks! That helps a lot, much appreciated!

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Luk
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by Luk » Nov 22, 2017 3:22 pm

Yes, hall colors are : blue, green and YELLOW !
( not red )
;-)
Luk-ebike.fr

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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by FlyingFinn » Jan 05, 2018 1:12 am

Is there available 8000W motors for 155mm dropouts? Or should I opt for Cromotor?

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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by johnnyz » Jan 11, 2018 10:18 am

Hi there

We are an ebike store in London and sell the EMMO ZONE which has a qsmotor hub motor . I have inquired at qsmotors about their 16inch 6000W In-Wheel Hub Motor(45H) V3 for Electric Motorcycle. We have some customers who are interested in this motor, but no one has got back to us. We need a quote for shipping to our buisness in London Ontario, 239 Wellington Street.

Thank you

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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by Scottydog » Jan 17, 2018 11:13 am

Here is a question I am asking to see if some of the regulars might be able to confirm.

I've built a scooter using the 273 range of motor using a 13" rear hub motor and using a KEB72081 controller.

One of the issues with the KEB controller and I believe the KLS7275D controllers is they limit the current on initial take off, then progressively allow more current as rpm/vehicle speed increases.

In the 72V motor option, QS offer approximate kV options in 9kV, 13kV, 15kV, 17kV and 19kV.

In one of the custom scooter builds a fellow used a KEB72121E controller with a 19kV motor, though the scooter had amazing performance over 35kph/20mph he mentioned the takeoff from a standstill was terrible and even getting over a sidewalk was difficult.

In my case with the KEB72081 and an unknown kV 5000W motor, but most likely very low (maybe 13kV) as it tops out at near 80kph for 72V, this scooter accelerates very rapidly from about 5mph up to top speed.

So the question is would I be right in thinking, unless you have a controller that can put out a lot of phase amps at low initial rpms, which higher speed motors with less but thick windings can take advantage of, acceleration will be compromised as compared to using a much lower speed motor which quickly rolls into a speed where the controller ramps up it's current limits?

For my build acceleration is more desirable than top speed, but I also want to be sure that I don't risk frying the lower kV motor with too much peak current, something I gather the higher kV motors with their thicker windings will better handle?

Thoughts?

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minde28383
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by minde28383 » Jan 17, 2018 12:45 pm

I agree with what you say and here is my thoughts.
One of the issues with the KEB controller and I believe the KLS7275D controllers is they limit the current on initial take off
It might be, I heard more people saying that Kelly has more limited starting torque/current compared with Sabvoton. Specifically, I'm comparing Sabvoton 72150 and Kelly 7230S. Your controller is different but there is some relevance.

I've attached Sabvoton 72150 12'' to scooter. It it pulls ok from a standstill (scooter 105kg, hubmonster hub, 12inch rims, 72V battery ,reached 85km/h, max may be 100km/h, it must be fast winding hub).

regarding
9kV, 13kV, 15kV, 17kV and 19kV.
I assume less kv has better acceleration from stand still and better for slow speeds.
More kv has better dynamic after scooters reaches some speed and is more dynamic and efficient going fast.
More kv motor has less resistance, and more current it is capable to accept.

High kv & small rim & a lot amps & high voltage is holy grail for the hub. Nevertheless hubs will be always in bad gear whatever you opt unless you plan is to sping it a certain RPM, other than that you diviate from it's holy-grail-iness . So it's compromises everywhere.

It's hard to imagine how such big controller like KEB72121E can be terrible at startups. Maybe some other components like battery or motor is a limit itself. But again, I did not try KEB72121E controller my self. I can tell only about Sabvoton, it has good starting torque, for sure bigger start phase amps. Kellys is limiting current more depending RPMs compared with some other controllers. And it's good if you aim for components longevity.

With a lot phase current you can make any motor roll in fast; more kv motor, more heat it will make at startups, but more kv motor will be more dynamic and powerfull going fast, and overall it will accept more current and it will generate more heat.

You can track motor temp. Regarding max amps it's hard to tell when you will get in trouble. Unless you know motor specs and its limits beforehand; otherwise you push it to limits and see what hapends. Best indicator is raising temperature with properly installed KTY sensor.

If you buy qs motor you know it's limits. Manufature has recommendations. You don't go much beyond recommendations and you are good.

All few scooters I've tried they pull well from stand still. And I assume it is because of small 12'' / 13'' wheels.

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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by johnnyz » Feb 14, 2018 10:17 pm

I paid for a qs motor and controller on jan 20th and still have not received my order. I have attempted to contact Damon but he has not returned my emails. I am hoping that this is an unfortunate error and that I dont have to come back here and report something more unfortunate.

John

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minde28383
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by minde28383 » Feb 14, 2018 10:20 pm

maybe it is related to:
Chinese New Year 2018 started at Friday, February 16th.

Talking into account that they manufacture motor for few weeks. Maybe they did not ship it before their New Year or do you have tracking which you should have.

CN do not work during holidays, not like EU.
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johnnyz
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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by johnnyz » Feb 15, 2018 7:35 am

minde28383 wrote:
Feb 14, 2018 10:20 pm
maybe it is related to:
Chinese New Year 2018 started at Friday, February 16th.

Talking into account that they manufacture motor for few weeks. Maybe they did not ship it before their New Year or do you have tracking which you should have.

CN do not work during holidays, not like EU.

Yeah its funny but I received an email shortly after posting this..its on its way with tracking no.. guess they were busy with their holiday.

John

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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by macribs » Feb 15, 2018 7:37 am

johnnyz wrote:
Feb 14, 2018 10:17 pm
I paid for a qs motor and controller on jan 20th and still have not received my order. I have attempted to contact Damon but he has not returned my emails. I am hoping that this is an unfortunate error and that I dont have to come back here and report something more unfortunate.

John
I wouldn't worry about it. QS has sold many motors to ES members and I have yet to hear things have gone wrong or shipments went missing. As said above this post, there is the celebration of Chinese new year too.

Give it time and I am sure it will all work out for you. If you got a tracking number but choose to pay for shipment by sea and went for the cheapest freight option it could be the shipping company still has not filled the container going from china so they are holding it back at the dock to make sure they fill up the container space before loading container on a ship. Those kind of shipping deals can take 6-12 weeks to go thru. And you don't get tracking number before container leave shore, and the next update not before container hits dry land again.

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Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Post by ridethelightning » Feb 20, 2018 11:22 pm

hi does anyone have any experience sourcing spares for sabvoton?
im hoping to fix a 72200 that just got bbqd.
i bought it from qs motor, but praps there is someone else who is best for support/repairs etc?

cheers
RTL

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