JP2503344Y2 - Electrode device for charging, discharging, and measuring capacitor elements - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode device used for charging, discharging and measuring a capacitor element for inspecting and selecting the capacitor element.

[0002]

2. Description of the Related Art In the process of manufacturing a capacitor element, the operation of charging or discharging a predetermined voltage to a capacitor element is repeated in order to inspect and select it. In this case, it is sent to a predetermined position by a carrier device. The lead wire of the received capacitor element is held by the electrode device, and the capacitor device is charged with a predetermined voltage through the electrode device.

A conventional electrode device of this type uses a leaf spring d as an electrode for directly contacting a lead wire b of a capacitor element a and transmitting electricity to the lead wire as shown in FIG. . Moreover, this leaf spring is usually made of phosphor bronze to improve conductivity.

By the way, the holding operation of the lead wire by the electrode device is performed very frequently, and the electrode is made of a material having a low toughness such as phosphor bronze even though the lead wire is largely bent every time the lead wire is held. Therefore, there is a problem that the spring property deteriorates, the electrode is damaged, and proper gripping is not performed. When the electrode member is composed of a leaf spring, the leaf spring is bent when the lead is gripped by the electrode device, so that a force for axially pressing the lead wire toward the capacitor element acts, and the capacitor element (lead wire There is a problem that the stress acts on the electrode foil connected to the electrode), which adversely affects the characteristics of the capacitor element.

[0005]

The problem to be solved by the present invention is to improve the reliability and durability of the electrode device by pressing the electrode member of the electrode device as a compression coil spring to the lead wire by the spring. That is.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a pair of arms which move so as to be spaced apart and approachable with a lead wire of a capacitor element interposed therebetween, and an electrode member which can electrically contact with the lead wire. in measuring electrode device of the capacitor element mounted via a mounting member made of an insulating material on the end portion of the coil spring attached to the mounting member, so as to directly contact the lead wire and the coil spring itself as the electrode It is configured.

[0007]

In the above structure, when the capacitor element is sent to the position of the electrode device in which the pair of arms are separated from each other and the lead wire is positioned between the arms, the arms are moved toward each other. . When the arm approaches the predetermined position, the coil spring comes into contact with the lead wire to complete the electrical connection between the coil spring and the lead wire. Then, a predetermined voltage is applied to the lead wire from the power source connected to the coil spring, and the capacitor element is charged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 4, an electrode device 1 of this embodiment is shown. In the figure, 2 is an electrode device 1.
Reference numeral 3 denotes a drive shaft rotatably supported on the main body 2 by a bearing 4. A bearing block 5 is rotatably attached to the drive shaft 3 by a bearing 6. A separator plate 7 made of an insulating material is fixed between a pair of support shafts 10 substantially at the center of the end surface (right end surface in FIG. 1) of the bearing block 5. The separator plate 7 extends perpendicularly to its end face.

The bearing block 5 includes a pair of support shafts 10.
(Only one side in FIG. 2) is spaced above and below the separator plate 7 (when the bearing block is in the position shown in FIG. 1)
It is mounted parallel and rotatable. Each support shaft 1
Arms 11 are fixed to one ends of 0 (upper end in FIG. 2), respectively. Tip of each arm 11 (right end in FIG. 1)
A mounting member 12 made of an insulating material is fixed to. The coil spring 1 is attached to the attachment member 12 fixed to each arm.
3 are fixed so as to face each other. This coil spring 13 has an M4 round small screw (made of brass) 14 at one end.
The spring is fixed to the mounting member 12 made of an insulating material. A follower roller 17 is rotatably attached to the side surface near the rear end of each arm 11 with its rotation axis parallel to the drive shaft 3. A power supply device (not shown) having a known structure is connected to the electrode spring 13.

A cam plate 20 is arranged at a position adjacent to the rear end of the arm 11 on the drive shaft 3, and the drive shaft 3 is provided.
It is fixed to. A cam groove 21 is formed on a surface of the cam plate 20 facing the arm 11 side. The cam groove 21 has an elliptical shape as shown in FIGS. The follower roller 17 attached to each arm 11 is received in the cam groove 21. Therefore drive shaft 3
When the cam plate 20 rotates due to the rotation of the arm, the arm moves between the substantially parallel state as shown in FIG. 1 by the action of the cam groove 21 and the follower roller 17 and the state in which the tip is opened as shown in FIG. Can be taken.

A gear 23 is attached to the drive shaft 3, and the gear 23 is rotatably attached to the main body 2.
It meshes with 4. The gear 24 has a lever 25 and a link 26 which are moved in association with the operation of the capacitor manufacturing process.
Are linked by and are operated in conjunction with the operation of the link.

In the above structure, the pair of arms 11 of the electrode device 1 stand by with their tips open as shown in FIG. In this state, the capacitor element is moved in the direction perpendicular to the paper surface of FIG. 1 while the element portion c is held by the known holder, and the pair of lead wires b is sent between the mounting members 12, It stops intermittently at that position. At this time, the pair of lead wires is in a state of sandwiching the separator plate 7 therebetween. After that, when the drive shaft 3 is rotated and the cam plate 20 is rotated by about 90 °, the arm 11 is rotated around the support shaft 10 by the action of the cam groove 21 of the cam plate and the follower roller 17, as shown in FIG. Is parallel to. Therefore, the attachment member 1 is attached to the lead wire b.
The electrode coil spring 13 attached to the arm 11 via 2 is pressed by its spring property, and the electrical connection between the lead wire and the electrode spring is completed. In this state, a power supply device connected to the electrode spring applies a desired voltage to the electrode spring to charge the capacitor element.

The bearing block 5 of the above-described embodiment is rotated by an external device (not shown) from a state in which the arm 11 faces sideways to a state in which the arm 11 faces upward.

[0014]

According to the present invention, the following effects can be obtained. (B) Since the coil spring presses against the lead wire, the entire coil spring bends and material fatigue does not occur, resulting in a semi-permanent life. (B) Machine noise is low because the coil spring bends. (C) There is no variation in dimensional accuracy due to the bending process unique to leaf springs. (D) The lead wire of the capacitor element and the separator plate are not damaged. (E) Since the pressing force in the axial direction does not act on the lead wire, there is stability in charging, discharging and measurement.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of an electrode device for measuring a capacitor element according to the present invention.

2 is a top view of the measuring electrode device of FIG. 1. FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a diagram showing a state in which the arm is in a position different from the position in FIG.

FIG. 5 is a cross-sectional view showing a mounting state of a coil spring electrode on a mounting member.

FIG. 6 is a diagram showing a part of a conventional electrode device.

[Explanation of symbols]

1 Measuring Electrode Device 2 Main Body 3 Drive Shaft 5 Bearing Block 11 Arm 12 Mounting Member 13 Coil Spring

Continuation of the front page (56) Reference JP-A-1-295176 (JP, A) Actually opened 58-123374 (JP, U) Actually opened 56-151969 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A pair of arms that move so as to be spaced apart and approachable with a lead wire of a capacitor element interposed therebetween, and an electrode member electrically contactable with the lead wire is made of an insulating material at an end portion of the arm. in the charging of the capacitor elements mounted via a mounting member, a discharge, the measuring electrode device, the coil spring attached to the mounting member, characterized in that direct contact to the lead wire by the coil spring itself as the electrode
Charging, discharging, measuring electrode device.