Motor and compressor with the same
View Patent ↗In a motor, one ends of a plurality of electric wires with the other ends connected to the motor side are connected to a terminal rod, and the terminal rod is exposed to the exterior of a motor casing via a terminal base. The terminal rod is provided with a flange portion and a crimping portion. A concave part is formed on an end surface of the crimping portion, and a communication part providing communication between an outer surface and the concave part is formed. The terminal base is provided with a depression to be fitted to the flange portion of the terminal rod, a seal portion having a diameter reduced from the depression, and a through portion passing from the seal portion through to the exterior of the motor casing. A seal member is put on the terminal rod. In a state that the electric wires are inserted into the concave part of the crimping portion, the outer surface of the crimping portion is pressurized, so that the electric wires are fixed to the crimping portion. With such a configuration, it is possible to reduce electric resistance between the electric wires from the motor side and the terminal rod and strongly combine the electric wires and the terminal rod.
1. A motor, comprising:
a motor casing;
a terminal rod having a flange portion arranged between both ends thereof, and a crimping portion arranged in one end thereof, with a concave part formed on an end surface of said crimping portion, and a communication part providing communication between an outer surface of said crimping portion and said concave part;
a terminal base having a depression provided on a surface thereof contacted with the interior of said motor casing, a seal portion adjacent to said depression, and a through portion passing from said seal portion through to the exterior of said motor casing, said terminal base fitted to said flange portion of said terminal rod at said depression;
a seal member disposed along said seal portion; and
a plurality of electric wires with one ends connected to a motor stator inside said motor casing, and the other ends fixed to said crimping portion by pressurizing the outer surface of said crimping portion in a state that the other ends are inserted into said concave part, wherein
said terminal base is attached to said motor casing, and
said terminal rod passes through said terminal base with the other end on the opposite side of said crimping portion exposed to the exterior of said motor casing.
2. The motor according to claim 1 , wherein
said seal portion has a diameter gradually reduced in the direction from said depression toward the exterior of said motor casing, and
said seal member is put on said terminal rod on the opposite side of said flange portion with respect to said crimping portion so as to be disposed along said seal portion.
3. The motor according to claim 1 , wherein
said terminal base is made of polyphenylene sulfide.
4. The motor according to claim 1 , wherein
both of a plurality of said electric wires and said terminal rod contain aluminum.
5. The motor according to claim 1 , wherein
each of a plurality of said electric wires is provided with a coat made of fluorine resin.
6. A compressor with the motor according to claim 1 .