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Inductor's Bobbin Design

D

dance

Jan 1, 1970
0
Does anyone explain to me what is 'cheekless bobbin'?

I'm reading a standard IEC/EN 60065 6th.
In clause 14.3.3.2, term 'cheekless bobbin' shows. but I can't find it what it is.

I hope your help.
 
W

Winfield Hill

Jan 1, 1970
0
dance wrote...
Does anyone explain to me what is 'cheekless bobbin'?

I'm reading a standard IEC/EN 60065 6th. In clause 14.3.3.2,
term 'cheekless bobbin' shows. but I can't find it what it is.

I think that means there isn't a bobbin, or at least no bobbin
flange to hold the wire in place. Instead it's layer-by-layer
interleave wound and holds itself in place, perhaps with the
help of lacquer.

Or, you could ask this fellow, "TRANSFORMER REWINDING SERVICE -
Rewinding facility available for audio, power and other "difficult"
transformers where replacements are not available. Specialising
in "cheekless bobbin" layer-interleaved rewinding. Contact Brian
at Computer Technical Engineering on 041 365-3935" BTW, that's
in Port Elizabeth, South Africa. :>)
 
T

Tony Williams

Jan 1, 1970
0
Does anyone explain to me what is 'cheekless bobbin'?
I'm reading a standard IEC/EN 60065 6th. In clause 14.3.3.2, term
'cheekless bobbin' shows. but I can't find it what it is.

It is a bobbin with only a central core.
Some form of cheeks were there during the winding,
but they get removed, and the final coil is made
self supporting. The lack of cheeks give a slight
increase in winding area, but it is not an easy
process to do, and modern strong plastics have
made it less useful.
 
J

Joerg

Jan 1, 1970
0
Hello Winfield,
I think that means there isn't a bobbin, or at least no bobbin
flange to hold the wire in place. ...

Our dogs would probably call that a "bone with chewed off ends".

Cheeks and inductors. That must have been coming from some bureaucrat.

Regards, Joerg
 
D

dance

Jan 1, 1970
0
Tony Williams said:
It is a bobbin with only a central core.
Some form of cheeks were there during the winding,
but they get removed, and the final coil is made
self supporting. The lack of cheeks give a slight
increase in winding area, but it is not an easy
process to do, and modern strong plastics have
made it less useful.

Thanks.
It's really helpful.
Have a nice day!!
 
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