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Capacitor module

A capacitor and electrical connection technology, which is applied in the field of capacitor modules, can solve problems such as increased heat generation, and achieve the effect of improving adhesion and improving electrical insulation

Inactive Publication Date: 2009-05-13
KOMATSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the capacitance of the capacitor is reduced, the amount of heat generated due to the internal loss of the capacitor element will increase, so an appropriate heat dissipation structure is also desired here

Method used

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Embodiment Construction

[0051] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by this embodiment.

[0052] FIG. 1 is a schematic diagram showing an example of a construction machine to which the present invention is applied. Here, hydraulic excavator 100 is mentioned as an example as a construction machine. In this hydraulic excavator 100 , motors 102A and 102B are used in addition to the engine 101 as a drive system. Specifically, as shown in FIG. 1 , an assist motor 102A and a swing motor 102B are used. The auxiliary motor 102A is directly connected to the output shaft of the engine 101, and is used to assist the engine 101 in the case of immediately performing work when, for example, the rotation speed of the engine 101 is reduced due to an increase in fuel consumption, so as to improve responsiveness to an operator's operation. . The turning motor 102B is provided in the turning...

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Abstract

Provided is a capacitor module capable of fixing a capacitor while assuring reliability and durability even under a condition where vibration is applied and having a heat dissipation structure appropriate for temperature increase inside the capacitor. The capacitor module includes a capacitor (2) having a screw hole (222) in the external bottom wall surface of a capacitor case (22) containing capacitor elements and a heat dissipater (3) for fixing a plurality of capacitor cases (22) by screwing a fixing screw (4) in the screw hole (222) of the capacitor (2). As a result, when the capacitor module (1) is mounted, for example, on a construction machine and a very strong vibration is repeatedly applied, it is possible to fix the capacitor (2) while assuring reliability and durability. Moreover, since the fixing screw (4) is screwed in the screw hole (222) and the external bottom wall surface of the capacitor case (22) is closely attached to a fixing surface (31) of the heat dissipater (3), heat generated in the capacitor (2) is appropriately conducted to the heat dissipater (3) so as to cool the capacitor (2).

Description

technical field [0001] The invention relates to a capacitor module for connecting a plurality of capacitors. Background technique [0002] As a conventional capacitor, there is a capacitor in which a capacitor element is inserted into a metal case. The metal case has a cylindrical shape with one end closed and the other open. After inserting a capacitor element inside, the opening at the other end is closed with a terminal plate. The terminal plate is fixed to the opening edge of the metal case, and has external terminals connected to internal terminals of the capacitor element (for example, refer to Patent Document 1). [0003] On the other hand, as a heat dissipation structure when a plurality of capacitors are connected and used as a capacitor module, conventionally, there is a heat sink device in which a plurality of split-die batteries are mounted via a thermally conductive member, and a cooling fluid is flowed through the heat sink device. Internal space flows (for e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/00H01G9/26
CPCH01G2/08Y02E60/13H01G11/10B60K6/28H01G9/155H01G2/04H01G11/82H01G9/14H01G9/00H01G9/26
Inventor 新垣淑隆平木彦三郎西村悟
Owner KOMATSU LTD
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