JPH043490Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a variable capacitor in which a sub-pole is integrally molded on a resin trimmer base of a polyvaricon, in addition to each stator pole, and a group of stators is sandwiched between the sub-poles.

Prior Art In the conventional polyvaricon, sub-poles for positioning the stator group were integrally molded only on the resin base, and no measures were taken to hold down the stator group.

Problems that the invention aims to solve In the conventional polyvaricon structure, there was a risk that vibration of the polyvaricon body would cause the stator group to resonate, causing howling.

Means to Solve the Problems The present invention consists of integrally molding a sub-pole in addition to each column on the resin trimmer base of polyvaricon, and assembling the sub-pole integrally molded on the resin base and the sub-pole of the trimmer base to form a stator group. The structure is such that the stator group is sandwiched to prevent howling.

Function As described above, in the present invention, the stator group supported by each pillar of the polyvaricon resin trimmer base is sandwiched between the sub-poles, so that the stator group does not vibrate and does not cause howling phenomenon.

Example A conventional polyvaricontactor is shown in Figs. 1, 2, and 3.
The diagram will be explained. 1 is a resin base, 2a,
2b, 2c, 2d are pillars protruding from the four corners of the resin base, 3a, 3b, 3c, 3d are each pillar 2a,
Sub-pillars 4a, 4b, 4 protruding from the resin base 1 by integral molding near 2b, 2c, 2d.
c and 4d are stator groups, 5 is a resin trimmer base, and 6a, 6b, 6c, and 6d are pillars 2a and 2 of the base 1 which are protruded from the back side of the resin trimmer base 5.
Fig. 3 shows a stator holding column with an insertion hole inserted into parts b, 2c, and 2d. As shown in Fig. 3, when stators 4a and 4d are attached to struts 2a and 2d, the side surfaces of stator 4a are supported by auxiliary struts 3a and 3d, but the upper and lower surfaces of stators 4a and 4d are supported. There is no. Connect the insertion holes of the stator holding columns 6a and 6d of the trimmer base 5 to the columns 2a and 2d.
and attach the mounting parts of stators 4a and 4d to the support column 2.
It can be clamped and fixed between the support column a and the presser support column 6a, and the support column 2d and the presser support column 6d. But stator 4
The large area portions a and 4d are still unstable because there is nothing to support them, and there is a risk of howling due to vibration.

4, 5, 6, 7 and 8 illustrate the polyvaricon of the present invention.
is a resin trimmer base, and on the back side of this trimmer base 7 are pillars 2 protruding from the four corners of the resin base 1, as described for the conventional product.
Stator holding columns 6a, 6b, 6c, and 6d are provided with insertion holes that are inserted into the columns a, 2b, 2c, and 2d. Sub-pillars 3a, 3b, 3 protruding from the resin base 1 on the side
Sub-pillars 3a,
3b, 3c, 3d tip projections 3a', 3b', 3c',
Insertion holes 8a', 8b', 8 inserted into 3d' respectively
Sub pole covers 8a, 8b with c', 8d',
8c and 8d are each integrally molded. The rest of the structure is the same as described with reference to FIGS. 1 to 3. As shown in FIG. 6, when stators 4a and 4d are attached to supports 2a and 2d, stator 4
The sides of a and 4d are supported by sub-poles 3a and 3d, and sub-pole covers 8a and 8d protruding from the back surface of the resin trimmer base 7 are inserted into the tip projections 3a' and 3d' of the sub-poles 3a and 3d. Since the holes 8a' and 8d' are respectively fitted and the stators 4a and 4d are held down by the two points of the sub-pole covers 8a and 8d, the stators 4a and 4d are stabilized compared to the conventional case, and vibrations are suppressed and howling can be prevented. .
Furthermore, the stators 4b and 4c attached to the sub-pillars 3b and 3c can be held down at two points by the sub-pillars 3b and 3c and the sub-pole covers 8b and 8c, allowing them to function in the same manner as described above. 9a, 9b, 9c, and 9d are the pillars 2 on the upper surface of the resin base 7 after the resin base 1 and the resin trimmer base are assembled.
Nuts screwed on a, 2b, 2c, and 2d are shown.

Effects of the Invention As described above, the present invention provides sub-pillars 3a, auxiliary columns 3a, 3a, 4b, 4c, and 4d that support the stators 4a, 4b, 4c, and 4d, respectively, beside the columns 2a, 2b, 2c, and 2d of the resin base 1;
3b, 3c, and 3d are provided protrudingly, and sub-pole covers 8a, 8b, 8c, and 8d are placed next to the holding columns 6a, 6b, 6c, and 6d corresponding to the columns 2a, 2b, 2c, and 2d protruding from the trimmer base 7. The resin base 1 and the trimmer base 7 are assembled, and the sub-poles 3a, 3b, 3c, 3d and the sub-pole covers 8a, 8b, 8c, 8d are fitted into the stators 4a, 4b, 4c, 4d, respectively. Compared to conventional methods, the stator group is stable and vibrations are suppressed, which has the effect of preventing howling.

[Brief explanation of drawings]

Figure 1 is a perspective view of the conventional product, Figure 2 is a perspective view of the trimmer base as above, Figure 3 is an exploded perspective view of the same as above, Figure 4 is a perspective view of the present invention, Figure 5 is the trimmer base as above. 6 is an exploded perspective view of the same, FIG. 7 is a longitudinal sectional side view of the trimmer base of the present invention, and FIG. 8 is a rear view of the same. 1...Resin base, 2a, 2b, 2c, 2d
...Struts, 3a, 3b, 3c, 3d... Sub-pillars,
4a, 4b, 4c, 4d...Stator, 6a, 6
b, 6c, 6d...presser post, 7...resin trimmer base, 8a, 8b, 8c, 8d...sub pole cover.

Claims (1)

[Scope of utility model registration request] A resin base 1 having pillars 2a, 2b, 2c, 2d and sub-pillars 3a, 3b, 3c, 3d protruding from the four corners, and stator holding pillars 6a corresponding to the pillars 2a, 2b, 2c, 2d, respectively, at the four corners. 6b,
6c, 6d and sub-pole covers 8a, 8b corresponding to the sub-poles 3a, 3b, 3c, 3d, respectively.
Consists of a resin trimmer base integrally molded with 8c and 8d, respectively, and stators 4a, 4b, 4c, and 4d.
Stators 4b and 4 are installed on the struts 2b and 2c.
c, assemble the resin trimmer base 7 to the resin base 1, and connect the strut 2a and the stator presser strut 6a, the strut 2b and the stator retainer strut 6b, the strut 2c and the stator retainer strut 6c, and the strut 2d and the stator retainer strut 6d, respectively. Built-in, secondary support 3a
and sub-pole cover 8a, sub-pole 3b and sub-pole cover 8b, sub-pole 3c and sub-pole cover 8
c. A polyvaricon in which stators 4a, 4b, 4c, and 4d are held down by sub-pillars 3d and sub-pole covers 8d, respectively.