JPH0736436U - Electrolytic capacitor - Google Patents

Abstract

(57) [Summary] [Object] To provide an easily replaceable electrolytic capacitor and extend the life of a printed wiring board or an electronic device including the electrolytic capacitor by replacing the electrolytic capacitor that has reached the end of its life. [Structure] An electrolytic capacitor has a first terminal and a second terminal which are connected to an external circuit by fitting. Further, the first terminal and the second terminal have different shapes in order to prevent incorrect connection of the polarities of the terminals. Further, the first terminal and the second terminal have shapes that can be fitted to each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a terminal shape of an electrolytic capacitor for facilitating replacement of the electrolytic capacitor incorporated in an electronic device.

[0002]

[Prior art]

 The terminal shape of a conventional electrolytic capacitor is shown in FIG. The printed wiring board and electrolytic capacitors are connected by soldering. However, the terminals of the electrolytic capacitor soldered to the printed wiring board are on the opposite sides of the printed wiring board from the main body of the electrolytic capacitor, so to replace the electrolytic capacitor, remove the printed wiring board from the electronic device. Therefore, it is necessary to disassemble the electronic device, which requires disassembling. Many electronic devices cannot be disassembled.

An electrolytic capacitor having a lug terminal or a faston terminal connected by a wire is easier to replace than a printed wiring board, but it is difficult to distinguish the polarity display of the terminal in an electronic device, and there is a possibility of incorrect wiring. Always exists.

[0004]

[Problems to be solved by the device]

 In most cases, the life of electronic devices is determined by the life of electrolytic capacitors, which are consumable parts. Replacing an electrolytic capacitor that has reached the end of its life can extend the life of the electronic device, but it was almost impossible to replace the electrolytic capacitor except by a repair engineer of the manufacturer of the electronic device.

Even if the electrolytic capacitor which has reached the end of its life can be replaced, the cost required for replacement is large. For this reason, the electrolytic capacitors that have reached the end of their life are not replaced except by the apparent negligence of the electronic device manufacturer, and the printed wiring board including the electrolytic capacitors or the entire electronic device is in a situation of being discarded. An object of the present invention is to provide an electrolytic capacitor that can be easily replaced, and to extend the life of a printed wiring board or an electronic device including the electrolytic capacitor by replacing the electrolytic capacitor that has reached the end of its life.

[0006]

[Action]

 The electrolytic capacitor can be directly removed and replaced by fitting the terminals of the electrolytic capacitor to the external circuit such as a printed wiring board.The electrolytic capacitor replacement work is the same as the dry battery or rechargeable dry battery replacement. It suffices for this to be performed by a simple procedure even if a person who is not a repair technician for the electronic device is involved. Like a battery, an electrolytic capacitor has a first terminal and a second terminal with different polarities, but by having different shapes, it is possible to prevent the polarity from being mistakenly connected to an external circuit. Furthermore, when exchanging electrolytic capacitors, if terminals with different polarities are fitted to each other, it becomes possible to connect multiple electrolytic capacitors with low withstand voltage directly in series to increase the withstand voltage of the electrolytic capacitor pair. The versatility as a repair part can be increased.

[0007]

[Means for Solving the Problems]

 The electrolytic capacitor has a first terminal and a second terminal to which terminals of the electrolytic capacitor are connected by fitting. Further, the first terminal and the second terminal have different shapes in order to prevent the polarities of the terminals from being incorrectly connected. Further, the first terminal and the second terminal have shapes that can be fitted to each other.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First Embodiment FIG. 3 shows a first embodiment of the present invention. This is an example in which a snap-type terminal of a 006P type dry battery is used as a terminal of an electrolytic capacitor. The fact that the connection between the electrolytic capacitor and the printed wiring board can be performed on the component side with respect to the printed wiring board makes replacement of the electrolytic capacitor extremely easy.

In order to replace the conventional electrolytic capacitor that is connected to the printed wiring board by soldering on the side opposite to the component, it is necessary to remove the printed wiring board from the electronic device including the printed wiring board. . Therefore, the replacement work of the electrolytic capacitor was limited to a professional engineer who was familiar with the structure of the electronic device. Replacement of capacitors with snap-on terminals by mating can be done by the user of the device himself with a simple work procedure. Like the 006P type dry battery, the positive and negative polarities can be identified, so that the connection with the printed wiring board will not be mistaken.

Second Embodiment FIG. 4 shows a second embodiment of the present invention. Conventionally, electrolytic capacitors with faston terminals have existed, but the shapes of the first and second terminals are the same, and there is always the possibility of incorrect connection. If the first terminal and the second terminal have different shapes as in the present invention, the polarities will not be erroneously connected.

[0011]

[Effect of device]

 As described above, according to the present invention, it becomes easy to replace the electrolytic capacitor built into the electronic device, and even if a person other than a repair engineer of the electronic device replaces the dry battery, the electrolytic capacitor which is a consumable part is replaced. Therefore, the life of the electronic device can be extended. Note that the effect is increased by using it together with the life warning device according to the invention of the present inventor (Japanese Patent Application No. 5-234350).

[Brief description of drawings]

FIG. 1 is a terminal shape of a conventional electrolytic capacitor.

FIG. 2 is a mounting example of a conventional electrolytic capacitor.

FIG. 3 is a terminal shape according to the first embodiment of the present invention.

FIG. 4 is a terminal shape of a second embodiment of the present invention.

[Explanation of symbols]

C Electrolytic capacitor T ₁ First terminal of electrolytic capacitor T ₂ Second terminal of electrolytic capacitor W Connection wiring to electrolytic capacitor PB Printed wiring board

Claims (2)

[Scope of utility model registration request] 1. A wet electrolytic capacitor (hereinafter, simply referred to as an electrolytic capacitor), which is provided with a terminal that is connected to an external circuit by fitting and the shape of the terminal is different from each other depending on the polarity. 2. The electrolytic capacitor according to claim 1, wherein terminals having different polarities have a shape capable of being fitted to each other.