Electric valve
A technology of electric valves and valve seats, which is applied in the direction of lifting valves, valve devices, valve details, etc., can solve the problems of not being able to change the installation position of the anti-rotation member, unable to remove the anti-rotation member, control signal noise, etc., to achieve prevention and control Effects of signal clutter, prevention of discharge, and improvement of reliability
Inactive Publication Date: 2010-12-15
FUJIKOKI MFG CO LTD
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Problems solved by technology
[0018] In the electric valve of the prior art mentioned above, when the anti-rotation member is attached to the stator, it is necessary to flatten the protrusion formed on the stator by welding etc.
[0019] In addition, since the anti-rotation member attached to the stator cannot be removed at one time, it is not possible to deal with the situation where the installation position of the anti-rotation member relative to the stator must be changed due to specification changes.
[0020] In addition, there is a problem that during the operation of the motor, the coil constituting the stator is electrified and discharges between the rotor and the rotor, which becomes noise of the control signal for controlling the opening of the spool, causing malfunction.
Method used
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Embodiment Construction
[0042] Next, embodiments of the electric valve of the present invention will be described with reference to the drawings. figure 1 It is a figure which shows the main part of the stator of the electric valve of this invention, (a) is a longitudinal sectional view, (b) is its bottom view. In the following figures showing the embodiment of the present invention, the same structural elements and parts as those of the electric valve in the prior art are assigned the same symbols as those already used, and further description is omitted. The electric valve of the present invention is basically the same as the electric valve of the prior art, and has: a valve body, which has a valve chamber and a valve seat formed inside the valve chamber; The opening of the valve seat is opened and closed; the housing is fixed on the valve body; the rotor is hidden in the housing; the stator is installed on the outside of the housing to drive the rotor to rotate; the driving mechanism , the drive...
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The invention relates to an electric valve. The stator is provided with a baffle member which prevents rotation to said can of said stator by engaging with pipe for inducting or educing refrigerant. At the footwall (95), a jut (97) is formed at the position of overlapped metal nudity of stator body (43) along up and down and a clearance (93) is formed between the jut (97) and the metal nudity of stator body (43). A clamp form top wall (101) with elastic baffle member (100) is inserted into the said clearance (93). The baffle member (100) depends on own restoring force to fix on the yoke iron(51) of the stator body (43) and the jut (97) by spring pressure, and the baffle member will not emerge from the clearance (93). Accroding the said invention, it is easy to mount the baffle member on the stator.
Description
technical field [0001] The invention relates to an electric valve installed in air conditioners, refrigeration equipment, etc. to regulate the flow of refrigerant and other fluids. Background technique [0002] Figure 7 It is a vertical cross-sectional view showing an example of a conventional electric valve disclosed in Patent Document 1, Figure 8 yes Figure 7 A perspective view of the anti-rotation member used in the electric valve. The electric valve 10 includes: a valve body 20 having a valve chamber 21 and a valve seat 22 formed inside the valve chamber; a valve core 23 that contacts and separates from the valve seat 22 to open and close the opening of the valve seat 22; Housing 40 on valve body 20 . The housing 40 houses the rotor 30 , and the stator 42 for rotating the rotor 30 is overlaid on the housing 40 . The valve body 20 is provided with a tube 20a extending downward from the bottom surface of the valve body 20 and a tube 20b extending horizontally from th...
Claims
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IPC IPC(8): F16K1/00
CPCF16K27/02F16K31/04F16K35/04F16K41/06
Inventor 大内共存
Owner FUJIKOKI MFG CO LTD