A wall mount assembly, comprising: a case body, including a front surface, a rear surface, and an outer peripheral surface connected to the front surface and the rear surface; wherein a slit is formed on the rear surface and extends in an installation direction; a first fixation hole is formed on the outer peripheral surface and communicates with the slit; a latch member, disposed on the rear surface; a fixing plate, including a wall mount surface and an installation surface; wherein the fixing plate further includes: a latch hole, including an opening portion and a sliding slot portion; wherein the opening portion is adapted to allow the latch member to pass through from the installation surface, so as to allow the latch member to slide into the sliding slot portion and to engage with the wall mount surface; and a lug, perpendicularly extending from the installation surface and adapted to be inserted into the slit; wherein an extension direction of the sliding slot portion is in parallel to the lug, and the lug further includes a second fixation hole; wherein when the lug is inserted into the slit and the latch member is located at a closed end of the sliding slot portion, a projection of the first fixation hole on the lug overlaps the second fixation hole; and the wall mount assembly further comprises a fixation member, adapted to be inserted into the first fixation hole and the second fixation hole from the outer peripheral surface. a case body, including a front surface, a rear surface, and an outer peripheral surface connected to the front surface and the rear surface; wherein a slit is formed on the rear surface and extends in an installation direction; a first fixation hole is formed on the outer peripheral surface and communicates with the slit; a latch member, disposed on the rear surface; a fixing plate, including a wall mount surface and an installation surface; wherein the fixing plate further includes: a latch hole, including an opening portion and a sliding slot portion; wherein the opening portion is adapted to allow the latch member to pass through from the installation surface, so as to allow the latch member to slide into the sliding slot portion and to engage with the wall mount surface; and a lug, perpendicularly extending from the installation surface and adapted to be inserted into the slit; wherein an extension direction of the sliding slot portion is in parallel to the lug, and the lug further includes a second fixation hole; wherein when the lug is inserted into the slit and the latch member is located at a closed end of the sliding slot portion, a projection of the first fixation hole on the lug overlaps the second fixation hole; and a latch hole, including an opening portion and a sliding slot portion; wherein the opening portion is adapted to allow the latch member to pass through from the installation surface, so as to allow the latch member to slide into the sliding slot portion and to engage with the wall mount surface; and a lug, perpendicularly extending from the installation surface and adapted to be inserted into the slit; wherein an extension direction of the sliding slot portion is in parallel to the lug, and the lug further includes a second fixation hole; wherein when the lug is inserted into the slit and the latch member is located at a closed end of the sliding slot portion, a projection of the first fixation hole on the lug overlaps the second fixation hole; and the wall mount assembly further comprises a fixation member, adapted to be inserted into the first fixation hole and the second fixation hole from the outer peripheral surface.