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Electronic device, in particular a variable speed drive or alternator regulator, comprising a heat sink and a power card

A technology for alternators and electronic equipment, which is applied to structural components of electrical equipment, electrical components, printed circuit board sockets, etc., and can solve problems such as damage to power components, danger of over-excitation or under-excitation, and non-operation of devices

Inactive Publication Date: 2019-08-30
MOTEURS LEROY SOMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Certain extreme operating conditions such as overdrive or use at excessively high ambient temperatures may cause damage to one of these power components
This damage renders the device inoperable at all, and the resulting over- or under-excitation can prove dangerous in applications such as tunnel smoke extraction, power supplies to hospitals, or cooling pumps for nuclear reactors

Method used

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  • Electronic device, in particular a variable speed drive or alternator regulator, comprising a heat sink and a power card
  • Electronic device, in particular a variable speed drive or alternator regulator, comprising a heat sink and a power card
  • Electronic device, in particular a variable speed drive or alternator regulator, comprising a heat sink and a power card

Examples

Experimental program
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Embodiment Construction

[0080] The invention will be better understood after reading the following detailed description of non-limiting embodiments of the invention with reference to the accompanying drawings, in which:

[0081] - figure 1 A schematic perspective view showing an example of a unit according to the invention;

[0082] - figure 2 A bottom view of the unit is shown;

[0083] - image 3 With figure 2 Figures of similar alternative embodiments;

[0084] - Figure 4 shows the unit with the heat sink removed;

[0085] - Figure 5 With Figure 4 A similar figure with the capacitor's output seal removed;

[0086] - Image 6 An exploded perspective view showing the lower portion of the housing;

[0087] - Figure 7 A front view of the unit is shown;

[0088] - Figure 8 With Figure 7 Similar picture after removing the access hatch of the auxiliary module;

[0089] - Figure 9 A split view of the upper portion of the housing is shown;

[0090] - Figure 10A The unit is show...

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PUM

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Abstract

An electronic device, in particular a variable speed drive or alternator regulator, comprising a heat sink (10) and a power card comprising a printed circuit board, housed in a casing, characterized by the fact that it comprises a part (100) fixed to a heat sink (10) and fixed to the circuit board and contacting at least one conductive track of the power card, in such a way as to ensure an electrical contact between the heat sink and said track, this part (100) having a face that is accessible from the outside of the device for fixing a lug connecting to a ground cable and / or earth cable.

Description

technical field [0001] The present invention relates to electronic equipment including power stages such as variable speed drives or regulators. Background technique [0002] A variable speed drive or regulator is a device used in conjunction with an industrial motor or alternator to control the speed or voltage of the industrial motor or alternator. [0003] These devices typically include power components such as, for example, IGBTs or MOSFETs mounted on heat sinks as well as sizable electrochemical capacitors. [0004] The trend is to try to reduce the space requirements of these devices. [0005] Many solutions have been proposed for this. [0006] Application US2014 / 0198455 discloses a variable speed drive comprising power components mounted on a printed circuit board and capacitors arranged at 90° to the board. [0007] Application US2010 / 0202109 discloses a device in which the capacitors are arranged close to the heat sink and through the opening of the cooling air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20H05K7/14
CPCH05K7/209H05K7/14322H05K7/1432
Inventor 塞缪尔·莫泽克里斯托佩·吉顿西尔万·吉劳德杰里米·弗拉塔尼
Owner MOTEURS LEROY SOMER