JPH0412663Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a lid for a capacitor.

(Prior Art) Recently, robot manufacturing technology has been rapidly progressing, and industrial robots have begun to be introduced in various processes for capacitors.

By the way, in a capacitor having a structure in which a capacitor element is housed in a metal case such as aluminum or a resin case and sealed by attaching a lid, for example, a screw terminal or the like is provided through the lid.

(Problem that the invention aims to solve) If a robot is used to insert a screw into the screw terminal from the outside and connect the capacitor to other electrical components, the robot's work will still be much easier than manual work. The accuracy is low, and the screws from the outside may not be inserted into the screw terminals provided on the lid, or may be inserted with the center position shifted, resulting in damage to the screw grooves.

An object of the present invention is to improve the above-mentioned drawbacks and provide a capacitor lid having a screw terminal that allows screw attachment to be performed easily and reliably.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a capacitor lid capable of sealing a capacitor case, which includes: an angular convex portion having protrusions on at least two sides; a square-shaped first hole provided in the hole, in which a square nut is housed, and which has a larger diameter than the square nut; and a second hole, which is connected to the first hole and has a smaller diameter than the first hole, into which a screw can be inserted. and a metal member having one end disposed on the convex portion, a hole having a diameter larger than the hole of the square nut at a position opposite to the first hole, and the other end fixed by a lead-out terminal extending through the hole. The present invention provides a capacitor lid characterized in that it has a plate-like body.

(Function) That is, according to the present invention, when attaching a screw from the outside, the screw is first inserted into the large diameter hole of the plate-shaped body, then guided to the hole and placed in the first hole. It is inserted and fixed into a square nut with a smaller diameter. Therefore, compared to the case where the screw is directly inserted into the square nut, the screw is more securely fixed to the square nut even if it is slightly misaligned.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In FIG. 1, reference numeral 1 denotes a lid made of a resin material such as epoxy resin and having a thickness of about several mm. 2 is this lid 1
It is an angular convex portion provided on a part of the ridge, and protrusions 3 are provided on two sides. Reference numeral 4 denotes a first square hole provided in the convex portion 2, in which a square nut 5 such as a square nut is housed. A cylindrical second hole 6 is connected to the first hole 4 and has a smaller diameter than the first hole 4. The square nut 5 is placed on a step 7 formed by the first hole 4 and the second hole 6. 8 is a square-shaped metal plate-like body, one end 9 is arranged on the upper surface of the convex part 2 so as to be in contact with the protrusion 3, and the other end 1
0 is fixed to the lid 1 by a lead-out terminal 11 extending through the lid 1. Reference numeral 12 denotes a hole provided at one end 9 of the plate-shaped body 8 at a position opposite to the hole 13 of the square nut 5, and has a larger diameter than the hole 13 of the square nut 5.

That is, according to the present invention, when attaching the screw 14 from the outside as shown in FIG. 13 is inserted. The diameter of the hole 12 in the plate member 8 is the same as that of the hole 13 in the square nut 5.
is larger than the diameter of the square nut 5, and the square nut 5 is larger than the diameter of the first hole 4.
Since the position inside the screw 14 can be changed somewhat, even if the position before insertion is slightly off from the center of the hole 12 of the plate-shaped body 8 or the hole 13 of the square nut 5, the screw 14 will fit into the thread groove of the square nut 5. can be inserted into the square nut 5 without damaging it. In addition, when the screw 14 is fixed to the plate-like body 8 with the square nut 5, one end 9 of the plate-like body 8 comes into contact with the protrusion 3, and rotation of the plate-like body 8 is prevented.

FIG. 3 shows another embodiment of the present invention, and in particular, compared to the embodiment shown in FIG.
The other end 18 is fitted, and the recess 16 and the other end 18
The plate-like body 17 is fixed to the lid 15 by a lead-out terminal 19 that extends through the lid 15. With this configuration, as compared to the embodiment shown in FIG. 1, the rotation of the plate-shaped body 17 is more effectively prevented, the protrusion 20 is less likely to be damaged, and reliability is increased.

In addition, as shown in FIG. 4 as a plate-shaped body, one end 2
1 may be provided with a projection 22 for preventing rotation.

(Effects of the Invention) As described above, according to the present invention, a capacitor lid can be obtained in which the work of attaching screws from the outside can be done easily and reliably.

[Brief explanation of the drawing]

Figure 1 is a sectional view of an embodiment of the present invention, Figure 2 is a sectional view of the embodiment of Figure 1 with a screw inserted, Figure 3 is a sectional view of another embodiment of the invention, and Figure 4. shows a front view of another plate-like body used in the embodiment of the present invention. 1, 15...Lid, 2...Protrusion, 3,20...Protrusion, 4...First hole, 5...Square nut, 6...Second
Hole, 8, 17... plate-like body, 11, 19... lead-out terminal, 12... hole, 16... recess.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A lid for a capacitor that can seal a capacitor case, including a square-shaped convex portion having protrusions on at least two sides, and a square nut provided in the convex portion to accommodate the square nut. a square first hole with a larger diameter than the
connected to the first hole and having a smaller diameter than the first hole;
a second hole into which a screw can be inserted; and a hole having one end disposed on the convex portion and having a diameter larger than the hole of the square nut at a position opposite to the first hole, and the other end passing through the hole. A lid for a capacitor, comprising a metal plate-shaped body fixed by a pull-out terminal. (2) The cap for a capacitor according to claim 1 of the utility model registration claim, wherein the plate-like body is in the shape of a square. (3) A capacitor lid according to claims 1 and 2 of the utility model registration claim, which has a recess into which the other end of the plate-like member can be fitted.