Low pressure blend switch

The utility model discloses a low pressure blend switch, include: the lower cover, install in the circuit board of covering down, and, with the upper cover that the lower cover assembled mutually, thelower cover with be provided with between the circuit board and be used for the location the mounted...

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Bibliographic Details
Main Authors LIU GUODONG, YI YUGEN
Format Patent
LanguageChinese
English
Published 20.07.2018
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The utility model discloses a low pressure blend switch, include: the lower cover, install in the circuit board of covering down, and, with the upper cover that the lower cover assembled mutually, thelower cover with be provided with between the circuit board and be used for the location the mounted position of circuit board and a supporting role's location structure. When installation circuit board, through setting up the location structure between circuit board and lower cover, fix the circuit board in advance on predetermined mounted position, and then fix the circuit board through the screw and cover under, the relative slip takes place between circuit board and the lower cover in the time of can preventing mounting screws, and then has promoted the installation effectiveness of circuit board. 本实用新型公开了种低压复合开关，包括：下盖，安装于所述下盖上的电路板，以及，与所述下盖相装配的上盖；所述下盖与所述电路板之间设置有用于定位所述电路板的安装位置并起支撑作用的定位结构。在安装电路板时，通过设置在电路板与下盖之间的定位结构，将电路板预固定在预设的安装位置上，然后再通过螺钉将电路板固定在下盖上，能够防止安装螺钉时电路板与下盖之间发生相对滑动，进而提升了电路板的安装效率。
Bibliography:Application Number: CN201721750712U