JPS6132634Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an electric washing machine, and more particularly to the structure of a mounting portion for housing a capacitor of a rotary blade drive motor or the like.

Electric washing machines are equipped with capacitors for the rotary blade drive motor and dehydration basket drive motor.
There are two types of capacitors, as shown in FIGS. 1 and 2, which are housed in cases of different shapes. This is done by integrally combining the case body and the terminal board using different types of caulking machines, and one of the capacitors 1a
The capacitor 1b has a grooved cylindrical case 3 with an annular groove 2 around its lower part, and the other capacitor 1b has a flanged cylindrical case 5 with a flange 4 on the outer periphery of the bottom surface. The direct diameter of the body of each of these capacitors 1a and 1b is almost the same, but capacitor 1b
Since the flange portion 4 is provided in the capacitor 1b, the capacitor 1b is installed in the mounting recess formed for the capacitor 1b.
If you try to install it by inserting a, there will be some looseness. In this case, there is a risk that the capacitor 1a may fall out of the mounting recess due to vibration or impact during transportation. For this reason, in the past, a separate mounting band was used to press and fix the device, but the mounting process was troublesome and was also unfavorable in terms of cost.

Therefore, an object of this invention is to provide an electric washing machine in which motor drive capacitors having different case shapes as described above can be securely fixed at the same mounting portion without wobbling.

Hereinafter, embodiments of this invention will be described with reference to the accompanying drawings.

As shown in FIGS. 3 and 4, the electric washing machine according to this invention is provided with a socket portion 7 formed integrally on a base 6. This socket part 7 has a substantially bottomed cylindrical shape, and the inner diameter at the upper stage is determined so that the flange part 4 of the capacitor 1b can fit therein, and at the lower part, the inner diameter is determined so that the flange part 4 of the capacitor 1b can fit therein.
The diameter is reduced to be smaller than the trunk diameter of a and 1b,
A stepped portion 8 is formed at the border. In addition, the stepped portion 8
Above the capacitor 1a, there are a plurality of holes, for example, three
Two elastically deformable projecting pieces 9 are formed. This protruding piece 9 is elastically deformed outwardly by the pressing force of the capacitor 1a and engages with the groove 2 with a snap action action, while the protruding piece 9 engages with the groove 2 with respect to the capacitor 1b. It acts as a stopper that comes into contact with 4. Furthermore, three hooks 10 are erected in the shape of tongues on the opening side of the socket portion 7. In addition, in the figure, 11 is a water drain hole, and 12 is a drain hole of the mold.

In addition, in this invention, Figures 5 and 6
As shown in the figure, capacitors 1a, 1b
A cylindrical spacer 13 is provided to be inserted between the socket part 5 and the socket part 5. This spacer 13
The inner diameter of the capacitor 1 is set so as to fit approximately into the body of the capacitor 1, and the outer diameter is set so that the socket 7 fits snugly into the body of the capacitor 1. In this case, a flange 14 is provided on the outer wall of the spacer 13, and this flange 14 is provided with three holes 15 which engage with the hooks 10 of the socket part 7. Moreover, three slits 16 are formed in the vertical direction in the spacer 13 at positions corresponding to the holes 15, except for the upper part thereof. Further, the upper wall portion located on the extension of each slit 16 is an elastically deformable thin wall portion 17, and a vertically long projection 18 is formed on the inner surface thereof. The length of the spacer 13 is determined by the distance between the spacer 13 and the socket part 7.
When the hook 10 is inserted into the hole 15 and the hook 10 is engaged with the hole 15, the lower side of the spacer 13 is positioned slightly above the protrusion 9 of the socket portion 7. In addition, in this example, spacer 1
3 is simultaneously molded in the same mold using the punched portion when molding the base 6 with a mold. As a result, the resin shrinkage rates of the socket portion 7 and the spacer 13 after injection molding are approximately the same, and high fitting precision between the two can be obtained.

In the above configuration, in order to attach the capacitor 1a, as shown in FIG. 7, a spacer 13 is attached to the body of the capacitor 1a, and further,
It is sufficient to insert the spacer 13 into the socket portion 7 together with the capacitor 1a. However, in this case, the hook 10 of the socket portion 7 is inserted into the hole 1 of the spacer 13.
Insert it to match 5. As a result, as shown in FIG.
is elastically deformed outward, climbs over the outer wall of the capacitor 1a and engages with the groove 2, and the capacitor 1
The lower side of a contacts the stepped portion 8 of the socket portion 7.
Further, the spacer 13 engages with the hook 10 of the socket portion 7 in a hole 15 provided in the flange 14, and is fitted into the socket portion 7. in this case,
The spacer 13 attached to the capacitor 1a is
Since the thin wall portion 17 is elastically deformed by the projection 18, it is tightly attached to the body of the capacitor 1a. Further, the lower portion of the spacer 13 divided by the slit 16 is pressed against the inner wall of the socket portion 7 and elastically deforms inward, thereby tightening and fixing the body portion of the capacitor 1a. From this point of view, it is preferable that the inner wall of the socket portion 7 is tapered so as to become slightly narrower toward the bottom. The capacitor 1b can also be attached by a similar operation. In this case, as shown in FIG. Since the lower side of the spacer 13 is in contact with the upper part of the flange 4, the capacitor 1b has the flange 4 connected to the protrusion 9 and the spacer 1.
It is held by the lower side of 3 and its vertical movement is restrained.

As is clear from the description of the embodiments described above, according to this invention, by interposing a spacer between the socket part and the capacitor body, capacitors with different case shapes can be mounted in the same mounting part in the circumferential direction. It can be installed securely without wobbling. Moreover, the installation operation is extremely easy.

[Brief explanation of the drawing]

Figures 1 and 2 are front views showing two types of capacitors with different case shapes, and Figures 3 to 9 show examples of this invention.
3 is a plan view of the socket part, FIG. 4 is a cross-sectional view taken along the line - in FIG. 3, FIG. 5 is a plan view of the spacer, and FIG. 6 is a cross-sectional view taken along the line - line in FIG. FIG. 7 is an explanatory view showing the capacitor installation operation, FIG. 8 is a sectional view showing the capacitor of FIG. 1 installed, and FIG. 9 is a sectional view showing the capacitor of FIG. 2 installed. In the figure, 1a and 1b are capacitors, 2 is a groove, and 3
1 is a grooved case, 4 is a flange, 5 is a flange case, 6 is a synthetic resin base, 7 is a socket, 9 is a protrusion, 1
0 is a hook, 13 is a spacer, 14 is a flange, 15 is a hole, 16 is a slit, 17 is a thin part,
18 is a protrusion.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A capacitor having a flanged cylindrical case with a flange formed in an annular shape on the outer periphery of the lower end, and a capacitor having a grooved cylindrical case with a groove formed in an annular shape on the lower outer periphery. The electric washing machine is equipped with a capacitor mounting part that can selectively accommodate a capacitor, and the mounting part is integrally molded on a synthetic resin base and has an inner diameter to which the collar of the flanged cylindrical case fits. a cylindrical spacer fitted to the body of each of the cylindrical cases and inserted into the socket at the same time; an elastically deformable protrusion formed on the inner wall of the socket portion so as to abut the flange and engage with the groove while elastically deforming the grooved cylindrical case; A stepped portion is provided which abuts and supports the bottom surface of the grooved cylindrical case when engaging with the groove of the grooved cylindrical case, and each of the capacitors is provided with a stepped portion which is fitted into the body portion of the grooved cylindrical case. inserted into the socket part via a spacer,
An electric washing machine characterized in that the protruding piece is locked inside the washing machine. (2) In claim (1) of the utility model registration, the spacer has an elastically deformable thin wall portion formed partially on its peripheral wall, and the thin wall portion includes a body portion of each of the cases. An electric washing machine characterized by being provided with a protrusion formed to protrude toward. (3) The electric washing machine according to claim (1), characterized in that the lower end of the spacer is formed to sandwich the flange of the flanged cylindrical case from above and below together with the protrusion. Machine.