Installation plate assembly and mobile air conditioner assembly

An installation plate assembly for a mobile air conditioner, the installation plate assembly comprising:

• a plurality of plate bodies, one of a length direction and a width direction of the plate body is a first direction, and the plurality of plate bodies comprise a first plate body and a second plate body, the first plate body is provided with a guide portion extending along the first direction, the second plate body is configured to be movably connected to the first plate body along the first direction;
• at least one of the first plate bodies and/or at least one of the second plate bodies is provided with an installation hole for installing an air duct of the mobile air conditioner;
• and
• a locking mechanism comprising a first locking member and a second locking member;
• one end of the first locking member is configured to be movably engaged with the guide portion, and the other end of the first locking member is movably engaged with the second locking member, so that the locking mechanism has a locked state and an unlocked state;
• wherein, when the locking mechanism is locked by first plate body and second plate body which are assembled together, the first locking member is located at one side of the second plate body along the first direction, and the second locking member and the first plate body define a clamping space for clamping the second plate body, so that the interconnected first plate body and second plate body are fixed relative to each other;
• when the locking mechanism is switched from the locked state to the unlocked state, the first plate body and second plate body fixed relative to each other are separable.