JPH058934U - Capacitor support structure - Google Patents

Abstract

(57) [Abstract] [Purpose] In a capacitor support structure used in a motor drive device, the time required to install the capacitor support for fixing the capacitor is shortened, and the capacitor terminal portion, the capacitor mounting hole, and the support mounting. The purpose of this is to improve the alignment accuracy of the holes and the support fixture screw holes. [Structure] The holes are positioned by fitting the capacitor terminal portions 9 into the holes provided in the capacitor support 6, and the holes are positioned by fitting the legs of the capacitor support 6 into the holes provided in the aluminum frame. Further, by fitting the convex portion provided inside the capacitor support into the concave portion of the capacitor, the capacitor support is fixed to the capacitor with one touch.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a support structure for an electrolytic capacitor used in a drive device for an electric motor.

[0002]

[Prior Art]

 FIG. 5 is, for example, a perspective view of a conventional capacitor mounting structure. In the figure, the capacitor supporting tool 6 fixed to the capacitor 3 by the supporting tool fixing screw 7 includes a supporting tool mounting hole 5 and a supporting tool mounting screw hole 4. It is screwed to the aluminum frame 2 by. The capacitor screw terminal portion 9 is screwed to the printed board 1 through the capacitor mounting hole 8.

The conventional capacitor support structure is as described above, and the support fixture mounting hole 5 and the support fixture mounting screw hole 4 are aligned with each other, and the capacitor screw terminal portion 9 and the capacitor mounting hole 8 are provided. Are aligned to fix the capacitor support 6 to the capacitor 3.

[0004]

[Problems to be solved by the device]

 In the conventional capacitor support structure, the capacitor support 6 has to be fixed to the capacitor by screwing after aligning the holes, which requires a lot of time. Further, there is a problem that the accuracy of hole alignment is poor because it is manual work.

The present invention has been made in order to solve the above problems, and an object thereof is to shorten the mounting time of the support fittings and improve the accuracy of hole alignment.

[0006]

[Means for Solving the Problems]

 The capacitor supporting structure according to the present invention is provided with a one-touch fitting type supporting device for fixing the capacitor and positioning the hole by making a hole matching the outer shape of the capacitor terminal.

[0007]

[Action]

 In this invention, a hole matching the outer shape of the capacitor terminal is made in the capacitor support, and the capacitor terminal is fitted into the hole to enable highly accurate hole alignment, and a convex portion inside the capacitor support is provided. By inserting this into the concave part of the capacitor, the mounting of the capacitor and the capacitor support can be done with one touch.

[0008]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a capacitor supporting structure according to the present invention, in which a capacitor supporting member 6 fixed to a capacitor 3 is screwed to an aluminum frame 2 by a supporting member mounting hole 5 and a supporting member mounting screw 4. Further, the capacitor screw terminal portion 9 is screwed to the print plate 1 through the capacitor mounting hole 8. Next, FIG. 2 is a top view when the capacitor support 6 according to the present invention is fixed to the capacitor 3, and FIG. 3 is a side view.

The operation of the first embodiment will be described with reference to FIGS. By fitting the fixture protrusions 11 of the capacitor fixture 6 in the side surface recesses of the capacitor 3, the capacitor support 6 can be fixed to the capacitor 3 with one touch, and the positioning hole 10 and the capacitor screw By fitting and fixing a capacitor support tool to the capacitor 3 so that the terminal part 9 fits into the capacitor 3, the support tool mounting hole 5 and the support tool mounting screw hole 4 are aligned, and the capacitor terminal part 9 and the capacitor screw mounting hole 8 Can be aligned with and at the same time.

FIG. 4 is a perspective view of a capacitor supporting structure according to another embodiment of the present invention, in which there is a supporting member mounting hole in the fitting hole 13 on the aluminum frame 2, and the foot portion of the capacitor supporting member 6 is The capacitor support 6 is fixed to the aluminum frame 2 by fitting it into the fitting hole 13 and the support mounting hole 5 and the support mounting screw hole 4.

The operation of the above embodiment will be described with reference to FIG. By fitting the foot portion of the capacitor support tool 6 having the support tool mounting hole 5 into the fitting hole 13 having the same shape as the bottom surface of the foot processed on the aluminum frame 2, the support tool mounting hole 5 and the support tool mounting screw hole are formed. It is possible to prevent the displacement of the capacitor screw terminal portion 9 and the capacitor screw mounting hole 8 from occurring.

[0012]

【Example】

 Example 2. In the first embodiment, the capacitor fixture 6 has two legs, but it is possible to change the number to three or more. In the first embodiment, the fixture protrusion 11 of the capacitor fixture 6 is the entire circumference of the support, but this is also possible at a certain portion. In Example 1, the frame to which the capacitor support is attached is an aluminum frame, but this may be made of iron, resin or the like other than aluminum. By the way, in the above description, the present invention is described as being applied to the supporting structure of a capacitor, but it goes without saying that it can also be applied to supporting other objects.

Although the fitting hole 13 has a quadrangular shape in the first embodiment, other shapes such as a round hole are also possible. By the way, in the above explanation, the case where the present invention is applied to the support structure of the capacitor has been described, but it goes without saying that it can also be applied to support other objects.

[0014]

[Effect of the device]

 As described above, according to the present invention, the time for fixing the capacitor support to the capacitor of the capacitor support can be shortened. It also has the effect of always improving the accuracy of hole alignment.

[Brief description of drawings]

FIG. 1 is a perspective view of a capacitor support structure according to an embodiment of the present invention.

FIG. 2 is a top view of a capacitor support according to an embodiment of the present invention when it is fixed to a capacitor.

FIG. 3 is a cross-sectional side view of a capacitor support according to an embodiment of the present invention when it is fixed to a capacitor.

FIG. 4 is a perspective view of a capacitor support structure according to another embodiment of the present invention.

FIG. 5 is a perspective view of a conventional capacitor support structure.

[Explanation of symbols]

 1 Printed board 2 Aluminum frame 3 Capacitor 6 Capacitor support 9 Capacitor screw terminal

Claims (1)

[Claims for utility model registration] [Claim 1] The capacitor is fixed to an aluminum frame,
This capacitor support structure is provided with two screw holes for fitting the screw terminals of the capacitor, and a capacitor support tool having a recess for fitting the recess on the side surface of the capacitor.