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A technology of gaskets and recesses, which is applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of increased pressure resistance and bulging, and achieve the effect of stable installation posture

Active Publication Date: 2018-05-08
NOK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, problems such as increased pressure resistance during packing installation and packing 51 bulging from the mounting groove 63 due to the rebound of the sealed air tend to occur.

Method used

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Embodiment

[0046] Next, embodiments of the present invention will be described based on the drawings.

[0047] figure 1 as well as figure 2 The gasket 1 according to the embodiment of the present invention is shown. The gasket 1 according to this embodiment is installed in a mounting groove 63 provided on one of the two opposing parts (for example, a casing of a power control unit such as a converter) 61, and is connected to the other part ( For example, a case cover (case cover) 62 of a power control unit such as an inverter is in close contact with, and the gasket 1 is constituted as follows.

[0048] That is, the liner 1 is shaped by a prescribed rubber-like elastic body, such as figure 1 As shown in (A), its planar shape is a substantially rectangular frame shape.

[0049]Additionally, if figure 2 As shown, the gasket 1 has a gasket body portion (pad base portion) 2. As for the gasket body portion 2, in the installed state, one end (lower end) 2a in the height direction (up ...

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PUM

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Abstract

The present invention provides a gasket that makes it difficult to seal the air in the space between the gasket and the bottom surface of the groove when the gasket is installed in the installation groove, thereby preventing the increase of the pressing resistance during the installation of the gasket and the loss of the gasket due to being trapped. These situations occur when the enclosed air bounces back and bulges from the mounting slot. In order to achieve this purpose, the gasket of the present invention is installed in a mounting groove provided on one of the two parts facing each other, and is in close contact with the other part, on the side of the gasket, throughout the entire circumference of the gasket A sealing protrusion contacting the groove side of the installation groove is provided. On the side of the gasket, a recess is partially provided on the circumference of the gasket. The recess is used as a ventilation hole when the gasket is installed in the installation groove. The concave portion is formed in a shape having a predetermined curvature in the longitudinal direction of the gasket.

Description

technical field [0001] The invention relates to a gasket, which is a kind of sealing device related to sealing technology. The gasket of the present invention is used, for example, as a gasket for a power control unit such as a converter. Background technique [0002] For example, the housings of power control units such as inverters used in electric vehicles are often formed by stamping or casting (aluminum casting). Large, which will hinder the use of gasket sealing. [0003] Therefore, in recent years, proposals have a liner 51 such as Figure 4 As shown, the gasket 51 is installed in the installation groove 63 provided on one of the two parts 61, 62 facing each other, and is in close contact with the other part 62, and is in contact with the groove side 63b of the installation groove 63 The sealing protrusion 52 is provided on the side surface of the gasket 51 over the entire circumference of the gasket 51 (Patent Document 1). [0004] prior art literature [0005] p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/10
CPCF16J15/061F16J15/106F16J15/104
Inventor 于楠
Owner NOK CORP