JPS6210995Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an apparatus for impregnating an electrolyte into a capacitor element made by winding electrode foil and insulating paper in the manufacturing process of an electrolytic capacitor.

The manufacturing process of an electrolytic capacitor includes a process of infiltrating an electrolytic solution between the wound electrode foil and the insulating paper. In this process, it takes a relatively long time to sufficiently impregnate the surface of the electrode foil, which has minute irregularities, with the electrolyte, so conventionally a so-called batch processing method was used, in which a large number of capacitor elements were impregnated while being placed in a case. However, it was difficult to automate or mechanize this process.

Therefore, an object of the present invention is to provide an impregnating device that can automatically impregnate a capacitor element with an electrolytic solution in a short period of time.

The capacitor electrolyte impregnation device according to the present invention includes a capacitor element housing chamber having an electrolyte reservoir chamber at the bottom on the periphery of an intermittently rotatable turret, and a capacitor element housing chamber that is supported to be movable up and down with respect to the housing chamber and closes the upper part of the housing chamber. A lid mechanism is provided, and the lid mechanism is provided with a chuck mechanism that can be opened and closed to enter the storage chamber,
In addition, the storage chamber is connected to a vacuum device so that the element storage chamber is impregnated with the electrolyte while the pressure is maintained at negative pressure.

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show an electrolyte impregnation device 1 according to this embodiment. In the figure, reference numeral 2 denotes a turret that is intermittently rotated by a known intermittent rotation drive mechanism (not shown), and capacitor element housing chambers 30 are formed in mounting holes 21 formed at equal intervals around the turret. A cup-shaped container 3 is attached. A small-diameter electrolyte reservoir chamber 31 is formed at the bottom of the container 3 .

At the periphery of the turret, a support shaft 4 is vertically and movably movable up and down adjacent to the mounting hole 21, and a guide shaft 5 is vertically installed adjacent to the support shaft 4.
A slider 51 is movably attached to the guide shaft 5, and a bifurcated tip of an arm 41 fixed to the support shaft 4 is engaged with the slider. Arm 4
1 is designed to move together with the slider and prevent the spindle from rotating.

A lid mechanism 6 is attached to the support shaft 4 above the container 3. The lid mechanism 6 has a lid holder 61 fixed to the support shaft 4, and is fitted and fixed to the lid holder 61 so that its lower surface abuts and engages the upper surface of the container 3 to close the top of the element storage chamber. a sleeve member or lid member 62, and a chuck holder 63 fixed within the lid member with a nut 64.
It has

A chuck 7 for gripping the lead wire of the capacitor element is provided at the lower bifurcated portion of the chuck holder 63.
is installed. The chuck 7 has a pair of pawls 73 and 74 attached to the chuck holder 63 by pins 71 and 72, respectively, and a spring 75 biasing the pawls to a closed position.
The claws 73 and 74 are such that a pin 76 attached to one claw 73 connects to a recess 77 formed in the other claw 74.
They are interlocked so that they fit into each other. A push rod 78 that can press the upper part of the claw 73 is attached to the chuck holder 63 so as to be movable up and down.
9 is constantly pushing it upwards.

The vessel is fitted with a fitting 32 which is connected via a switching valve or the like to a conduit 100 which is connected to a vacuum source.

The turret 2 is further provided with a detent device 44 that engages with the annular groove 42 of the support shaft 4 to hold the support shaft in the upper position shown by the chain line in FIG. have. The detent device includes a ball 4 held within a holding member 45.
6 and a spring 47 that presses the ball 46 as a support shaft.

Note that 80 is a sealing member that seals between the upper surface of the container 3 and the lower surface of the lid member 62, and 81 is a push rod 78.
This is a sealing member that seals between the chuck holder and the chuck holder.

Further, 9 is an electrolyte heating device consisting of a heater 90 and a heater support member 91.

In the electrolyte impregnation device having the above configuration, the turret 2 rotates intermittently and stops, and the support shaft 4
is pushed up by a known means, and the lid mechanism 6 is raised to the position shown by the chain line in FIG.

Next, a predetermined amount of electrolyte L is filled into the electrolyte reservoir chamber 31 using a known filling device (not shown).

In addition, the push rod 78 is pressed by a cylinder mechanism (not shown) or the like to release the chuck pawl 73,
74 and hold the lead wire of the capacitor element. The lead wire is held by the tension of spring 79.

Thereafter, the support shaft 4 is lowered, the element housing chamber 30 is sealed by the lid mechanism 6, and the capacitor element is immersed in the electrolytic solution L at the same time. Then, the inside of the storage chamber 30 is evacuated via the conduit 100 to a negative pressure (vacuum).

On the other hand, the electrolyte reservoir chamber 31 is heated by the heating device 9 to reduce the viscosity of the liquid and promote impregnation of the electrolyte into the capacitor element. After the capacitor element is completely impregnated with the electrolytic solution, the storage chamber is returned to atmospheric pressure, the lid mechanism 6 is raised, and the capacitor that has been completely impregnated is taken out. Note that the above steps are systematically and automatically performed by a known drive mechanism.

As described above, according to the present invention, the capacitor element can be impregnated with a predetermined amount of electrolyte in a vacuum (negative pressure), so the capacitor lead wires are not contaminated, and Impregnation is possible at high speed without deforming the lead wire. Therefore, it becomes possible to consistently and automatically manufacture capacitors.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of an embodiment of the capacitor electrolyte impregnation device according to the present invention, FIG. 2 is a cross-sectional view taken along the line - in FIG. 1, and FIG. 3 is a cross-sectional view along the line - in FIG. 1.
FIG. 1: Electrolyte impregnation device, 2: Turret, 3: Container, 30: Element storage chamber, 4: Support shaft, 6: Lid mechanism, 7: Chack.

Claims (1)

[Claims for Utility Model Registration] 1. At the periphery of the turret that can be rotated intermittently, a capacitor element housing chamber having an electrolyte reservoir chamber at the bottom;
A lid mechanism is provided that is supported to be movable up and down relative to the storage chamber and closes the upper part of the storage chamber, and the lid mechanism is provided with a chuck mechanism that can be opened and closed to enter the storage chamber, and the storage chamber is evacuated. An electrolyte impregnation device for a capacitor, characterized in that it can be connected to a device. 2 a lid holder in which the lid mechanism is attached to a support shaft that is vertically movably supported by the turret;
The capacitor electrolyte impregnating device according to claim 1, characterized in that the device has a lid member attached to the lid holder, and opens and closes the lid mechanism by moving the support shaft up and down.