Stator unit and electric valve provided with same
A stator unit and stator technology, applied in the direction of electric components, valve devices, valve details, etc., can solve the problems of high cost of parts, deviation of the position relationship of stator coils, and difficulties in resistance welding, etc., to reduce the number of parts and suppress Effects of separation distance and cost suppression
Active Publication Date: 2020-10-02
FUJIKOKI MFG CO LTD
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Problems solved by technology
Therefore, the number of parts increases, and the welding of each base 41 and the anti-rotation member 30 and the welding of each base 41 and the yoke 51 must be performed separately, so the assembly man-hours increase.
In addition, since the contact area between the short cylindrical base 41 and the yoke 54 becomes large when welding, resistance welding may be difficult and the strength of the welded portion may not be so high.
In addition, when joining the bases 41 and the anti-rotation member 30 by welding, the distance between the yoke and the anti-rotation member, in other words, the positional relationship between the stator coils 50A, 50B, the case, the rotor, and the like may deviate.
In addition, the pedestal 41 needs to be manufactured by cutting, so there is also a concern that the cost of parts will increase.
Method used
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[0060] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0061] In addition, in each drawing, gaps formed between components, spacing distances between components, and the like may be drawn exaggeratedly in order to facilitate understanding of the invention and for convenience in drawing. In addition, in this specification, expressions indicating positions and directions such as up, down, left and right are indicated on drawings, and do not refer to positions and directions in actual use.
[0062] figure 1 It is a plan view showing one embodiment of the stator unit of the present invention, figure 2 , image 3 respectively figure 1 A-A arrow sectional view, B-B arrow sectional view. Figure 4 is used for Figure 1 ~ Figure 3 Upper perspective view of the anti-rotation part of the stator unit shown. Figure 5 yes figure 2 , image 3 The bottom perspective view of the yoke shown and the anti-rotation part welded to ...
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Provided are: a stator unit that enables the number of components and the amount of assembly labor time to be cut back, thereby suppressing component costs and manufacturing costs; and an electric valve provided with the stator unit. A stopping member (30) comprises: a circular ring-shaped flat plate section (31); stopping engagement piece sections (37) disposed on engagement plate sections (35) that curve away from a yoke (51), with at least three of the engagement plate sections being provided disposed from the inner peripheral side of the circular ring-shaped flat plate section (31); and atleast three protruding piece sections (39) that curve upward from the circular ring-shaped flat plate section (31) toward the yoke (51). Tip sections of the protruding piece sections (39) are joinedby welding to the yoke (54).
Description
technical field [0001] The present invention relates to a stator unit, and more particularly, to a cast-type stator unit using a low-hardness resin such as polyurethane resin as a molding resin, and an electric valve including the stator unit. Background technique [0002] exist Figure 9 An example of a conventional stator unit and an electric valve using the stator unit are shown in , and the structure of the stator unit is briefly described (see Patent Document 1 for the detailed structure). [0003] Figure 9 In the electric valve 100 of the conventional example shown, the lower end portion of a cylindrical housing 120 with a top is hermetically joined to a valve body 110 having a pipe joint 111 constituting a lateral inlet and outlet and a pipe joint 112 constituting a downward inlet and outlet, by welding or the like. . A rotor (not shown) is arranged with a predetermined gap on the inner periphery of the casing 120 , and a stator unit 50 is fitted and fixed on the ou...
Claims
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IPC IPC(8): H02K5/00F16K31/04H02K5/08
CPCF16K31/04H02K5/128H02K21/145F16K27/00
Inventor 北條嵩浅野哲平原田贵雄
Owner FUJIKOKI MFG CO LTD