JPS61290707A - Terminal holder for electrolytic capacitor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a terminal holder for an electrolytic capacitor, and more specifically, when re-forming the oxide film of an electrolytic capacitor, DC voltage is applied through the lead terminal of the electrolytic capacitor. The present invention relates to a terminal holder used to hold lead terminals of an electrolytic capacitor when applying voltage to the terminals.

(Prior art and its problems) Conventionally, in the electrolytic capacitor reconstitution process, the terminal holding methods used to hold the terminals of an electrolytic capacitor and apply voltage between the terminals have generally been the clip method or the wire wrap method. method, chucking method, etc. this house,
First, the clip method applies voltage through a clip that pinches the lead terminal of the capacitor, but with this method, the shape of the clip and the shape of the terminal may not match;
In addition to the disadvantage that the clip easily separates from the terminal, the pressurization of the clip is not uniform, resulting in a lack of reliability.

In addition, the wire wrap method merely makes an electrical connection between the power supply and the terminal by wrapping a wire (copper wire) around the terminal, but the wire may come loose, resulting in a lack of electrical reliability and The drawback was that it was unfriendly and unsuitable for automation. Furthermore, in order to improve workability, it was necessary to position the terminals, and a positioning tool or jig was required for this purpose.

On the other hand, the chucking method uses a holding mechanism made of a spring member to hold the lead terminals of the capacitor, but since the holding mechanism is made of a spring member, a separate holding mechanism is required to prevent the spring from returning. The problem is that the mechanism of the jig becomes complicated and it is difficult to miniaturize the jig itself.

(Object of the Invention) The present invention has been proposed in view of the above points, and its purpose is to eliminate the need for a complicated holding mechanism etc.
The structure allows the capacitor lead terminals to be held securely, and the electrical connection is highly reliable, contributing to the automation and simplification of the re-forming process.In addition, it can be used for cleaning to remove metal powder etc. attached to the lead terminals. An object of the present invention is to provide a terminal holder for an electrolytic capacitor that also has functions.

(Structure of the Invention) The present invention will be described below with reference to the drawings. Figures 1 to 6
In the figure, reference numeral 1 denotes a base having a substantially square outer shape, and is made of heat-resistant plastic or the like. This base 1
A pair of fixed terminals 2 are arranged almost parallel to each other from the surface end to the vicinity of the center, and the tips of these fixed terminals 2 are erected on the surface of the base 1 and are attached to the fixed holding piece 2a.
At the same time, on the inner surface of the upper end of this fixed holding piece 2a, a conductive fixed holding part 2b cut out in an obtuse angle shape is attached as shown in FIGS. 4 and 6. Further, each other end of the fixed terminal 2 is extended to the back side of the base 1, and is bent along the back side of the base 1, and the respective connecting ends 2C
is doing.

On the other hand, the surface of the base 1 is provided with rotatable holding convex portions 4 that are pivoted by conductive and rotatable pivots 3 arranged substantially on extension lines of the fixed terminals 2. A movable holding piece 6a is provided upright at the tip of the movable terminal 6 attached to these holding protrusions 4 via screws 5, and a movable holding piece 6a is provided on the inner surface of the upper end with an apex angle approximately equal to An electrically conductive movable holding portion 6b having a 90-degree triangular side surface is attached.

The movable holding part 6b and the fixed holding part 2b face each other, and as described above, the movable holding part 6b and the fixed holding part 2b, which follow the holding convex part 4 and the movable terminal 6, hold the lead terminals of the electrolytic capacitor. It is designed to be sandwiched.

Next, the pivot 3 of the holding protrusion 4 passes through the base 1 and reaches the back surface, and at its lower end there is a conductive rotating arm divided into two by a groove as shown in FIG. One end of the rotating arm 7 is tightened and fixed by a screw 8, and a guide roller 9 is pivotally supported at the other end of the rotating arm 7. In addition, as shown in FIGS. 4 and 5, the base 1
A disk-shaped drive cam 10 made of heat-resistant plastic or the like is rotatably attached to the back surface of the base 1 via a spacer 1a and a pivot shaft 11 that are integrally erected on the back surface of the base 1. On the inner surface of the drive cam 10, there is a pair of arc-shaped cams J10a that can receive the guide roller 9 of the rotating arm 7 and whose distance from the pivot shaft 11 gradually changes along the circumferential direction. They are formed 180 degrees apart from each other.

Although not shown, the connection end 2 of each fixed terminal 2
C and the end of the rotating arm 7 located on its side are connected by a lead wire.

Next, to explain this operation, the present invention is placed inside a thermostatic oven or the like, and the drive cam 10 is moved through the pivot shaft 11 using an appropriate jig from the state shown in FIGS. 2 and 5. When the guide roller 9 and the rotating arm 7 are rotated in the direction of the arrow a in FIG. 5, the guide roller 9 and the rotating arm 7 rotate inward (clockwise in the figure) around the pivot shaft 3 as the cam 51110a moves. At the same time, the pivot shafts 3 also rotate, so on the surface of the base 1, both of the pair of pivot shafts 3 rotate counterclockwise, and as a result, the holding convex portion 4 and the movable terminal 6 are moved by the force indicated by the arrow a° in FIG. Rotate direction. The drive cam 10 stops when the dead center of the cam groove 10a comes into contact with the guide roller 9 as shown in FIG. They are separated and a gap is formed between them.

Therefore, in this state, if the lead terminal (not shown) of the electrolytic capacitor to be reconstituted is placed in the gap and the drive cam 10 is rotated in the direction b in FIG.
can be rotated in the b° force direction in FIG. 8, and can be held between the fixed holding part 2b and the lead terminal. Thereafter, by applying a voltage through the pair of connecting ends 2C, the current flows from the connecting ends 2C to the fixed terminal 2 to the fixed holding part 2.
Route b, or connection end 2C → rotating arm 7 → pivot 3
It flows into the positive lead terminal of the electrolytic capacitor via the path of → holding protrusion 4 → movable terminal 6 → movable holding part 6b, and flows out from the negative lead terminal in the opposite path to the above. It goes without saying that the electrolytic capacitor that has been reconstituted can be removed by turning the drive cam 10 again in the direction of arrow a in FIG.

Note that the movable holding part 6b does not move in the direction of coming into contact with the fixed holding part 2b from the front, but approaches the fixed holding part 2b following an arcuate trajectory, and the movable holding part 6b approaches the fixed holding part 2b, and Since it contacts the lead terminal of the capacitor and holds it between the fixed holding part 2b,
The lead terminal goes through a process in which it comes into sliding contact with the fixed holding part 2[1, and then is held down (=l) by the movable holding part 6b, and combined with the deflection due to the springiness of the movable terminal 6, the series of lead terminals Due to this behavior, metal powder etc. adhering to the lead terminals are washed away, resulting in a so-called self-cleaning action.Furthermore, according to this embodiment, depending on the shape and structure of the lead terminals, the screws 5 and screw 8
This makes it possible to easily adjust the position of the movable terminal 6 and, by extension, the movable holding portion 6b, as well as the rotation angle 7 and the opening angle of the movable terminal 6.

(Effects of the Invention!li) As described above, according to the present invention, there is provided a rotatable drive cam having cam scraps whose distances from the pivot point gradually vary, a rotary arm that follows this drive cam, and a rotating arm that follows this drive cam. The electrolytic capacitor lead can be rotated in an approximately arc shape by following the rotating arm, and has a conductive movable holding part that can hold the lead terminal of the electrolytic capacitor between it and the conductive fixed holding part. When the terminal is held by the movable holding part and the fixed holding part, the movement of the rotating arm is regulated by the cam scraps via the guide roller, so there is no need to use any spring members as in the conventional example. This has the effect that the lead terminal can be held securely and mechanical and electrical reliability can be improved.

In addition, since the lead terminal can be held, electrically connected, and released by simply rotating the drive cam, it has the advantage of contributing to automation and labor savings in the series of reconstitution processes, and the holding mechanism This simplification has the advantage of providing a holder with a simple structure and small size.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, and FIG. 1 is a plan view;
Figure 2 is a bottom view with the drive cam removed, Figure 3 is a front view, Figure 4 is a side sectional view of Figure 1, Figure 5 is a bottom view, and Figure 6 is an enlarged explanation of the main parts. 7 and 8 are a bottom view and a plan view of the main part, respectively, showing the operating state. 2b...Fixed holding part, 6b...Movable holding part, 7
... Rotating arm, 10... Drive cam, 10a.
... Kamuko, 11... Axis 1141 Figure 2

Claims (1)

[Claims] A rotatable drive cam with cam grooves whose distances from the pivot point gradually vary; a rotary arm that follows this drive cam; and a conductive 1. A terminal holder for an electrolytic capacitor, comprising a conductive fixed holding part and a conductive movable holding part capable of holding a lead terminal of an electrolytic capacitor.