| 摘要 |
The invention discloses an electronic expansion valve. The electronic expansion valve includes: a valve body (10), a first chamber being formed in the valve body (10), a liquid inlet (11) and a liquid outlet (12) being oppositely provided at two ends of the valve body (10), and the liquid inlet (11) and the liquid outlet (12) being coaxially arranged along a central axis of the valve body (10); a second chamber, disposed in the first chamber, a coil (20) being arranged in the second chamber; a third chamber, running through the second chamber, an inlet end of the third chamber being communicated with the liquid inlet (11), an outlet end of the third chamber being communicated with the liquid outlet (12), the inlet end of the third chamber and the outlet end of the third chamber being coaxially arranged, and a spool (31) capable of moving along the central axis being arranged in the third chamber; and a first liquid channel hole (33), provided in a chamber wall of the third chamber, the first chamber being communicated with the liquid inlet (11) via the first liquid channel hole (33). By keeping a movement direction of liquid in the valve body and an in-out direction of the liquid with respect to the valve body in a straight line, the flow resistance of the liquid and the on-way pressure loss can be effectively reduced. Meanwhile, the noise problem can be solved, and the valve is simple to mount. |
