Waterproof casing
A shell and body technology, applied in the field of waterproof shells, can solve problems such as deterioration of waterproof performance and slippage of gaskets
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no. 1 example
[0018] Waterproof cases are applied to devices such as electronic devices and electric devices. The watertight housing provides space to house components such as electronic and electrical components. The waterproof case can be applied to a power converter device of a vehicle. First, an outline structure of a power converter including a waterproof case is explained.
[0019] Outline structure of power converter
[0020] Such as figure 1 As shown, the power conversion device 100 has a semiconductor device 2 , a cooling system 4 , a waterproof case 6 and a pressing member 8 . The waterproof case 6 includes a case 60 . Housing 60 is shown in cross-section, while other components are shown in plan view in figure 1 , to show the inside of the case.
[0021] The waterproof case 6 accommodates the semiconductor device 2 . The semiconductor device 2 constitutes an electronic converter such as an inverter and a converter. The power conversion device 100 has a plurality of semico...
no. 2 example
[0063] The second embodiment is a modification based on the foregoing embodiments. The waterproof case in the foregoing embodiments has a recessed portion 612 in the wall surface 610 of the hole 61 . In the second embodiment, a step 614 is provided instead of the recessed portion 612 .
[0064] Figure 4 is the fixing structure of the washer 70. Figure 4 corresponds to image 3 . The step 614 is provided on the wall surface 610 . The step 614 is recessed from the wall surface 610 in the radial direction and extends upward to the inner surface 601 in the axial direction. The space formed by the step 614 communicates with the internal space 602 . The step 614 corresponds to a member forming a retreat space.
[0065] The low compression portion 702L enters the space defined by the step 614 . The step 614 allows the low compression portion 702L to retreat radially outward. The boundary 702B between the high compression portion 702H and the low compression portion 702L an...
no. 3 example
[0071] The third embodiment is a modification based on the foregoing embodiments. The waterproof case in the foregoing embodiment has a retreat space on the wall surface 610 of the hole 61 . This escape space may be the interior or exterior space of the casing 60 .
[0072] Figure 5 The fixing structure of the washer 70 is shown. Figure 5 corresponds to image 3 . Figure 5 The thickness of the side wall 62 of the housing 60 in the housing 60 is thicker than in the previous embodiments. The low compression portion 702L is provided outside the hole 61 . The low compression portion 702L is provided inside the internal space 602 of the housing 60 . The inner space 602 is formed by the inner surface 601 of the housing 60 . The internal space 602 corresponds to a retreat space.
[0073] The low compression portion 702L is arranged inside the housing 60 . The wall surface 610 does not extend to where the low compression portion 702L is located. Therefore, the low compres...
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