Mounting bracket assembly and window air conditioner assembly

A mounting bracket assembly comprising:

• a support plate;
• and
• a transverse fixation member connected to one end of the support plate and including:
• a transverse limit member including:
• a limit top plate;
• a first limit side plate and a second limit side plate provided at two opposite side edges of the limit top plate, respectively, a length of the first limit side plate being greater than a length of the second limit side plate;
• and
• two limit bottom plates opposite to the limit top plate and provided at two ends of the first limit side plate, respectively;
• wherein:
• the limit top plate, the first limit side plate, the second limit side plate, and the limit bottom plates enclose to form a mounting space;
• a first opening communicated with the mounting space is formed between the two limit bottom plates;
• and
• a second opening communicated with the mounting space is formed between the limit bottom plates and the limit top plate where the second limit plate is located.

A window air conditioner assembly comprising:

• a window air conditioner;
• and
• a mounting bracket assembly including:
• a support plate provided at one side of the window air conditioner and including an outer support member supporting an outdoor part of the window air conditioner, a mounting slide groove being formed at the outer support member and extending in a length direction of the support plate;
• an outdoor support, one end of the outdoor support being slidably provided in the mounting slide groove, and a limit structure being provided between the one end of the outdoor support and the mounting slide groove and configured to limit the one end of the outdoor support from separating from the mounting slide groove;
• a level mounting member;
• and
• a mounting case detachably connected to the level mounting member and configured to mount a level at the level mounting member.