[Tex/LaTex] How to draw a DC motor in circuitikz

Question

I'm using circuitikz to create an electric circuit diagram. I'd like to draw a DC motor like this:

_{(source: expertsmind.com)}

or this one:

It looks like there's no symbol for motors in circuitikz. I'm using \begin{circuitikz}[american]. How I draw those symbols?

Answer 1

Another alternative is to modify an existing two-terminal element in the circuitikz such as sV and redefine a new command called \mymotor that draws the desired shape and form. Here two shapes (\mymotor, \mymotorB) are defined as asked by the OP.

\newcommand{\mymotor}[2] % #1 = name , #2 = rotation angle
{\draw[thick,rotate=#2] (#1) circle (10pt)
 node[]{$\mathsf M$} 
++(-12pt,3pt)--++(0,-6pt) --++(2.5pt,0) ++(-2.8pt,6pt)-- ++(2.5pt,0pt);
\draw[thick,rotate=#2] (#1) ++(12pt,3pt)--++(0,-6pt) --++(-2.5pt,0) 
++(2.8pt,6pt)-- ++(-2.5pt,0pt);
}

Code:

\documentclass[border=20pt]{standalone}  
\usepackage[american,siunitx]{circuitikz}
\usetikzlibrary{arrows,shapes,calc,positioning}

\newcommand{\mymotor}[2] % #1 = name , #2 = rotation angle
{\draw[thick,rotate=#2] (#1) circle (10pt)
 node[]{$\mathsf M$} 
++(-12pt,3pt)--++(0,-6pt) --++(2.5pt,0) ++(-2.8pt,6pt)-- ++(2.5pt,0pt);
\draw[thick,rotate=#2] (#1) ++(12pt,3pt)--++(0,-6pt) --++(-2.5pt,0) ++(2.8pt,6pt)-- ++(-2.5pt,0pt);
}

\newcommand{\mymotorB}[2] % #1 = name 
{\draw[thick] (#1) circle (12pt)
node[above=-3pt]{$\mathsf M$} ++(-8pt,-3pt)--++(15pt,0);
\draw[thick,dashed] (#1) ++(-8pt,-5pt)--++(15pt,0);
}

\begin{document}

\begin{circuitikz}
\draw (0,2) to[L, l_=$L$, o-*] (2,2) to[sV, color=white, name=M1] (3.5,2) to[short,*-] (5,2);
\mymotor{M1}{0}
\draw (0,0) to[short, o-*] (2,0) to[short, -*] (3.5,0) to[short] (5,0);
\draw (2,2) to[C=$C$] (2,0);
\draw (3.5,2) to[R=$R$] (3.5,0);
\draw (5,2) to[sV, color=white, name=M2] (5,0);
\mymotor{M2}{90}
%
\draw (2,3) to[sV, color=white, name=M3] (3.5,3);
\mymotorB{M3}

\draw (6,2) to[sV, color=white, name=M4] (6,0);
\mymotorB{M4}

\end{circuitikz}

\end{document}