Abstract: A detachable element positioning structure disposed at a side of a slot for positioning a detachable element in the slot is disclosed. The detachable element positioning structure includes a first elastic arm and a second elastic arm connected to the slot. The first elastic arm touches a top surface of the detachable element. The second elastic arm connects to the slot and has a protrusion. The detachable element has a side notch, and the protrusion is coupled to the side notch.

Abstract: A power receptacle for a portable electronic device suitable for connecting a power plug is provided. The power plug has a tubular terminal and a clamping terminal in the tubular terminal. The power receptacle includes an insulating housing, an anode terminal, and a cathode terminal. The insulating housing has a receiving cavity, and the power plug is suitable for being plug in the receiving cavity. The anode terminal disposed in the insulating housing is located at the central part of the receiving cavity. The cathode terminal disposed in the insulating housing is located at a side of the receiving cavity. During a process of plugging the power plug into the receiving cavity, the tubular terminal contacts the cathode terminal, and then the clamping terminal contacts the anode terminal, so that the power plug is electrically connected to the power receptacle.

Abstract: A receptacle connector is adapted to be electrically connected with a plug connector. The plug connector has a plurality of plug terminals. The receptacle connector includes an insulating body and a plurality of receptacle terminals. The insulating body has a receiving space and a plurality of grooves. The plug connector is adapted to be plugged into the receiving space. The receptacle terminals are disposed within the insulating body. Each of the receptacle terminals includes a base disposed in a corresponding groove, a bent portion connected with the base, a contact portion extending from the bent portion into the receiving space, and an engaging portion extending from the contact portion toward the groove and disposed within the groove. The receptacle terminals correspond to the plug terminals such that the plug terminals press the contact portions, respectively, when the plug connector is plugged into the receiving space.

Abstract: A power receptacle for a portable electronic device suitable for connecting a power plug is provided. The power plug has a tubular terminal and a clamping terminal in the tubular terminal. The power receptacle includes an insulating housing, an anode terminal, and a cathode terminal. The insulating housing has a receiving cavity, and the power plug is suitable for being plug in the receiving cavity. The anode terminal disposed in the insulating housing is located at the central part of the receiving cavity. The cathode terminal disposed in the insulating housing is located at a side of the receiving cavity. During a process of plugging the power plug into the receiving cavity, the tubular terminal contacts the cathode terminal, and then the clamping terminal contacts the anode terminal, so that the power plug is electrically connected to the power receptacle.

Abstract: A detachable element positioning structure disposed at a side of a slot for positioning a detachable element in the slot is disclosed. The detachable element positioning structure includes a first elastic arm and a second elastic arm connected to the slot. The first elastic arm touches a top surface of the detachable element. The second elastic arm connects to the slot and has a protrusion. The detachable element has a side notch, and the protrusion is coupled to the side notch.

Abstract: An electrical connector includes an insulation body, a plurality of insulation wires, and a plurality of terminal-connecting elements. The insulation body has a plurality of receiving slots and a plurality of terminal-inserting openings. The terminal-connecting elements are disposed respectively in the receiving slots. Each of the terminal-connecting elements has a first protrusion and a second protrusion respectively fixing one of the insulation wires. An asymmetric single rib of each of the terminal-connecting elements protrudes toward a direction of one of the terminal-inserting openings. The asymmetric single rib has a projecting point electrically contacted with a corresponding terminal.

Abstract: An energy-saving system including a primary heat recovery apparatus for recovering heat from the environment of a silencer box having a compressor and a power generator simultaneously coupled with an engine commonly built in the box for warming utility water, a refrigerant heat recovery apparatus for recovering the condensation heat of the refrigerant for warming utility water, a water heat recovery apparatus for recovering the water heat in the water jacket of the engine, and a flue gas heat recovery system having a first gas heat exchanger and a second gas heat exchanger for recovering the waste heat of the exhaust gas. A turbo-generator is driven by a steam turbine driven by the steam produced from the gas heat exchanger for generating electricity. Also at least an absorption-based air conditioner is driven by the waste heat as recovered from the energy-saving system.

Abstract: An energy-saving system includes a primary heat recovery apparatus recovering an environmental heat of a silencer box having a compressor and a power generator simultaneously coupled with an engine commonly built in the box for warming utility water, a refrigerant heat recovery apparatus recovering the condensation heat of the refrigerant for warming utility water, a water heat recovery apparatus recovering the water heat in the water jacket of the engine, a flue gas heat recovery system having a first gas heat exchanger and a second gas heat exchanger for recovering the waste heat of the exhaust gas, a turbo-generator driven by a steam turbine driven by the steam produced from the gas heat exchanger for generating electricity, and at least an absorption-type air conditioner as driven by the waste heat and recovered from the energy-saving system.

Abstract: An energy-saving system for an air conditioning system includes: a silencer box encasing an air compressor of an air conditioning system and an engine directly coupled with the air compressor, an air heat exchanger adapted for absorbing the heat as laden by an air stream passing the air compressor and the engine, a refrigerant heat exchanger recovering the condensation heat of the air conditioning system, a water heat exchanger recovering the heat as absorbed from the water jacket in an engine body, and a flue gas heat exchanger recovering the waste heat laden in the exhaust gas from the engine, so that all the heat recovered may serve to drive a turbo-generator for power generation, or to warm an utility water or to preheat a boiler feed water.