Combined power amplifier

• Main Author: LIANG NIANZHONG
• Format: Patent
• Language: Chinese; English
• Published: 24.03.2023
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The utility model discloses a combined power amplifier, which belongs to the technical field of power amplifiers, and comprises a plurality of power amplifier bodies, the plurality of power amplifier bodies are stacked up and down, the bottom end face of the lowermost power amplifier body is connected with a plurality of groups of moving assemblies, each moving assembly comprises a fixed pipe, a rotating sleeve, a connecting plate, a rotating shaft and a moving roller, the fixed pipe is fixed to the bottom end face of the power amplifier body, a blocking piece is further fixed to the bottom of the fixed pipe, the rotating sleeve is located above the blocking piece and rotationally arranged on the fixed pipe in a sleeving mode, the two connecting plates are symmetrically fixed to the two side walls of the rotating sleeve, and the two ends of the rotating shaft are fixed to the two connecting plates in a penetrating mode respectively. By means of the arrangement, under the condition that the power amplifier bod