JPS58131726A - Power condenser - 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 The present invention provides a power capacitor V which efficiently dissipates heat generated in a capacitor element (resulting from 11 power loss).
cpA.

Conventionally, heat generated in a capacitor element has been generally dissipated by a method called natural or forced air cooling from the surface of the case using oil filled inside the case.

If the capacitor element generates a large amount of heat using this method, install an appropriate oil duct between the capacitor elements to improve oil convection, or attach a heat sink to the case to increase the Table 1110 product. It is necessary to take measures against
There was a limit to the required size and lighter weight of products.

In view of the above points, the present invention is to insert the heat collecting part of the heat pipe into the capacitor case so that the heat generated inside the capacitor element can be radiated to the outside of the capacitor case by using a heat pipe sound with excellent heat conduction efficiency. As a result, the heat dissipation effect was slightly improved by f%.

The present invention will be explained below based on illustrated embodiments.

In the figure 1. Insulating layer on II, S! , 4U aluminum foil, this insulating layer and aluminum foil 1R are arranged alternately as shown in Figure 1,
This is wound into a shape to form a capacitor element 8 as shown in Fig. 2. (1) A plurality of capacitor elements are arranged according to the capacitance of the element forming the element.A protective paper 6 and a closing plate 6 are placed on the inner and outer wires.
The outer periphery of the capacitor is fastened together at the outer circumferential edge to form nine elements of the capacitor. The electrodes of each element of the element body 9 of this capacitor are electrically connected by welding electrodes such as foil or lead fusion.

The capacitor body 9 constructed as described above is covered with an insulating paper 14.
Then, wrap the capacitor in a sealed manner and place it in the desired capacitor case tS. At this time, the case tS is filled with insulating oil or gas. Conventionally, as shown in FIG. 8, lead legs connected to each electrode of the capacitor body 9 are connected to terminals 11 protruding from the case IIK. The present invention further includes a heat pipe mounting bracket attached to the case tS, and 1jllo-1 is attached to the heat pipe lb.
It is filled and sealed with a working fluid containing a boiling point of 20℃,
In addition, a heat collecting plate 18 is installed at the heat collecting part of the heat pipe, and a heat sink plate 17 is installed at the heat dissipating part. In addition, the heat collecting portions, that is, the heat collecting plates 18 are located inside the case. Although the heat pipe is installed between the electrodes in the illustrated embodiment, it is also possible to install one or more heat pipes in other parts depending on the core wall.

Reference numeral 16 in the figure represents a heat pipe mounting fitting.

However, according to the present invention, a heat pipe is provided in the capacitor case so as to be inserted outside the heat dissipating part of the case and into the heat collecting part of the case, so that the total heat generated inside the capacitor element and the heat pipe are The advantage is that heat can be dissipated quickly to the outside of the case through the capacitor, and the capacitor can be made compact. have

[Brief explanation of drawings]

Figure 1 is a partially developed plan view of a conventional capacitor element, Figure 2 is a partially developed plan view of a conventional capacitor element.
The figure is a perspective view of a conventional capacitor element, FIG. It is a calorific value characteristic diagram. 1.8, , Insulation J So J4, - Aluminum foil 660. Finishing board 609. Protective paper 700. 〆Tei81. Element 908. Element ILI , , Electrode 11 , , Terminal 12 , , Electrode reference leg 1g 0. , Case 14 , 0. Insulating paper 16+, , heat pipe 16-0. 1 heat pipe mounting bracket 00. Heat sink 180. , heat collecting plate

Claims (2)

[Claims] (1) In a power capacitor containing oil or dregs, the heat collecting part of the heat pipe is inserted into the capacitor case, and the heat dissipating part is installed outside the case, and the heat generated inside the capacitor element is transferred to the heat vibrator and connected to the capacitor. A power capacitor designed to dissipate heat to the outside of the case. (2) 51f1 as the working fluid inside the heat vibrator
The power capacitor according to claim 1, in which a liquid having a temperature of 80 to 120° C. is used at one point.