Temperature detector and fixing material transfer suppressing structure
The temperature detector comprises a thermistor embedded in varnish, a connector, a lead wire connecting the thermistor and the connector to each other, and a transfer suppressing portion provided between the thermistor and the connector and suppressing the movement of the varnish on the surface of the lead wire. The suppressing portion comprises a protection tube surrounding the lead wire and a grommet filled in a space inside the protection tube.
1. A temperature detector comprising:
a temperature detection element portion directly embedded in a coil end of a stator core and a fixing material with which said coil end is impregnated;
a connector portion;
a lead wire connecting said temperature detection element portion and said connector portion to each other; and
a transfer suppressing portion provided between said temperature detection element portion and said connector portion to suppress movement of said fixing material on a surface of said lead wire, wherein
said transfer suppressing portion has
a tube surrounding said lead wire and
a seal portion filling in a space inside said tube.
2. The temperature detector according to claim 1 , further comprising a lead wire protection portion provided between said temperature detection element portion and said transfer suppressing portion to protect said lead wire.
3. The temperature detector according to claim 1 , wherein
said connector portion is attached on an outside of said tube.
4. The temperature detector according to claim 1 , wherein said seal portion includes any one of a grommet, a heat-shrinkable tube and a seal agent.
5. The temperature detector according to claim 1 , wherein said tube has shock absorbency.
6. The temperature detector according to claim 1 , wherein
said seal portion includes a seal member inserted into said tube, and
said seal member is formed of a material softer than said tube.
7. The temperature detector according to claim 1 , wherein said seal portion is provided on an end portion of said tube on a side of said temperature detection element portion.
8. The temperature detector comprising:
a temperature detection element portion embedded in a fixing material;
a connector portion;
a lead wire connecting said temperature detection element portion and said connector portion to each other;
a transfer suppressing portion provided between said temperature detection element portion and said connector portion to suppress movement of said fixing material on a surface of said lead wire, wherein
said transfer suppressing portion has
a tube surrounding said lead wire and
a seal portion filling in a space inside said tube; and
a protection member surrounding said temperature detection element portion, wherein
said seal portion is formed by inserting said protection member into said tube.
9. The temperature detector according to claim 8 , wherein a protrusion portion is formed on a side surface of said protection member positioned on a side of said connector portion with respect to said temperature detection element portion.
10. The temperature detector comprising:
a temperature detection element portion embedded in a fixing material;
a connector portion;
a lead wire connecting said temperature detection element portion and said connector portion to each other; and
a transfer suppressing portion provided between said temperature detection element portion and said connector portion to suppress movement of said fixing material on a surface of said lead wire, wherein
said transfer suppressing portion has
a tube surrounding said lead wire and
a seal portion filling in a space inside said tube,
said seal portion includes a seal member, and
said seal member includes a through-hole through which a lead wire passes, and a slit extending from a side surface of said seal member to said through-hole.
11. The temperature detector comprising:
a temperature detection element portion embedded in a fixing material;
a connector portion;
a lead wire connecting said temperature detection element portion and said connector portion to each other; and
a transfer suppressing portion provided between said temperature detection element portion and said connector portion to suppress movement of said fixing material on a surface of said lead wire, wherein
said transfer suppressing portion has
a tube surrounding said lead wire and
a seal portion filling in a space inside said tube,
said seal portion includes a plate-like seal member, and
said seal portion is formed by inserting the seal member into said tube in a state in which said seal member is wrapped around said lead wire.