Electronic expansion valve and refrigeration equipment with it
A technology of electronic expansion valve and valve needle, which is applied in the direction of mechanical equipment, valve operation/release device, valve fluid energy absorption device, etc., can solve the problems of electronic expansion valve such as high noise, and solve the problem of high noise and improve user The effect of experience
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[0028] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0029] Such as Figure 2 to Figure 6 As shown, the electronic expansion valve of this embodiment includes: a valve body 10 , a valve needle 20 , a driving part, and a noise reduction part. Among them, the valve body 10 has a valve port 11; the valve needle 20 has a closed position for closing the valve port 11 and an open position for avoiding the valve port 11; the driving part drives the valve needle 20 to move between the closed position and the open position; On the valve needle 20, the valve port 11 is provided with an upward protruding annular protrusion 40, and the muffler is located on the circumferential outer side of the annular protrusion 40. When the valve needle 20 is in the close...
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