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Waterproof shell, power supply unit and assembly method

A technology of power supply unit and waterproof case, applied in electrical components, boards/panels/desks of substations/switchgears, circuits, etc., can solve the problem of current leakage of electronic components, sealing depends on the quality of welding seams, weight and high material costs problem, to achieve a smooth and firm outer surface

Inactive Publication Date: 2019-05-17
FRIWO GERAETEBAU GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alternative to ultrasonic welding is not as reliable as full filling, since the seal is dependent on the quality of the welded joint and may be subject to some unacceptable fluctuations
On the other hand, completely filling the plug-in power supply unit has the disadvantage of relatively high weight and material outlay, moreover, the inspection of the cause of the fault is more difficult due to the fact that all components are inseparably surrounded by casting resin
[0005] In addition, the inventors of the present application realized that encapsulating all components with a casting resin could lead to current leakage between electronic components, cause electromagnetic interference (EMI) problems, and cause undesired acoustic phenomena

Method used

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  • Waterproof shell, power supply unit and assembly method
  • Waterproof shell, power supply unit and assembly method
  • Waterproof shell, power supply unit and assembly method

Examples

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Embodiment Construction

[0036] Reference will now be made to the drawings and first to figure 1 The present invention will be described in more detail. figure 1 is a schematic exploded view showing a power supply unit 100 that can benefit from the concept according to the invention.

[0037] Active electronic devices such as transformers and controllers are mounted to a circuit carrier, preferably a printed circuit board (PCB) 102 , to form an electrical functional assembly 104 . The mains-side input cable 106 can be connected to the mains voltage, eg by means of a mains plug (not shown in the figure). On the low-voltage secondary side, consumers can be connected to electrical functional assemblies 104 via output cables 108 .

[0038] According to the invention, the electrical functional assembly 104 is accommodated in a housing 110 . The housing 110 is advantageously formed as an extruded profile made of electrically insulating plastic material. like figure 1 As shown, the housing may have a su...

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Abstract

The invention relates to a waterproof housing for an electrical device, a power supply unit and a corresponding assembly method for the electrical device. The waterproof housing comprises: a housing (110) defining an interior space (132) for accommodating electrical functional components (104) and comprising at least one first opening (112); and at least one first plug (116), It fits within said first opening (112) to form a first portion of the wall of the interior space (132), wherein the first plug (116) comprises at least one first plug forming a feedthrough for the first terminal (106). A terminal channel (120). The first plug (116) is disposed in the first opening (112) to form a first external space (134) with the housing (110), and the first external space (134) is filled with The electrical insulating material (138) of the waterproof housing (140) is described.

Description

technical field [0001] The invention relates to a watertight housing for an electrical device, a power supply unit for supplying a consumer with low voltage and comprising such a watertight housing, and a corresponding assembly method for the electrical device. Background technique [0002] Today, power supply units supplying electrical consumers with a low voltage by converting the supply voltage into the required low voltage by means of voltage transformers are widespread. This is necessary for certain applications, eg for charging outdoor devices, to be able to safely operate the power supply unit in wet environments. Here, degree of protection IPx4 or even IPx7 must be observed. [0003] Enclosure protection class (International Protection Class Certification (IP code)) according to standard DIN EN 60529 [DIN EN 60529 (VDE 0470-1): 2000-09 (IEC 60529: 1989+A1: 1999); German version EN60529: 1991+A1: 2000. VDE Publishing House, Berlin], the so-called international prot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B1/28H02B1/04H02B3/00H01R13/52
CPCH01R13/521H01R13/5219H02B1/04H02B1/28H02B3/00H05K5/069H02M5/10H05K5/062H05K5/0247H05K5/064
Inventor 亚尔琴·伊尔马兹克里斯多夫·卡斯滕·扬瑟
Owner FRIWO GERAETEBAU GMBH
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