Abstract: An air conditioner ventilation and pre-cooling device includes a carrying container, a cooling unit and an intake fan. The carrying container is provided for containing condensed water of the evaporator, the cooling unit is connected to the condensed water, and the intake fan guides outside air to pass through the cooling unit. The heat of the condensed unit is conducted to the cooling unit, and the outside air passes through the cooling unit and exchanges heat with the cooling unit to form a pre-cooled air. The outside air is pre-cooled before it enters into an indoor environment, so as to achieve the environmental protection and power saving effects and improve the cooling efficiency.

Abstract: A refrigerant socket includes an accommodating body and a pipeline assembly. The pipeline assembly includes a refrigerant pipe connecting to the accommodating body and having an inner section inside the accommodating body and an outer section outside the accommodating body; a switch placed at the inner section and away from a free end thereof, the switch being used to selectively allow or block a flow inside the refrigerant pipe; a refrigerant pumping pipe communicating between the free end of the inner section and the switch; and at least one joint communicates between the free end of the inner section and the switch. Therefore, even if the diameter of the refrigerant pipe does not match an air conditioner indoor unit, connection can still be made without the need of removing the original piping, thereby avoiding wasting refrigerant.

Abstract: An elastic cover, adapted to be disposed at a lateral side of an electronic device to cover at least a portion of a transmitting port, includes a body having two shielding sheets. Each shielding sheet includes a first portion close to the other shielding sheet and a second portion away from the other shielding sheet. A turn is formed between the first and the second portions so that a cross-section of the shielding sheet appears as a V shape. An opening of the V shape is adapted to face the lateral side. A slit is formed between the two shielding sheets and adapted to correspond to the transmitting port. A transmitting object is adapted to push the two first portions to enlarge the slit, so as to pass through the body and be plugged into the transmitting port. An electronic apparatus having the elastic cover is further provided.

Abstract: A hybrid air conditioning apparatus includes a first air conditioning device and a second air conditioning device. The first air conditioning device is a cooling and heating air conditioner, and the second air conditioning device communicates with the first air conditioning device. Air modulated by the second air conditioning device is sent to the first air conditioning device for cooling and heating air adjustment. Accordingly, the air discharged from the first air conditioning device has enhanced quality and all kinds of properties in the air are provided uniformly.

Abstract: A quick release apparatus for a bicycle tire or tube is provided, which reduces time and effort spent in changing the tire or tube. A main wheel frame and a sub wheel frame are provided. These two frames with rim respectively can be assembled to construct a complete wheel frame set. When said main wheel frame connects with the sub wheel frame, it provides a complete rim with two walls for containing the tube. When said main wheel frame leaves said sub wheel frame, it generates a gap between these two frames for removing the tube easily.

Abstract: An elastic cover, adapted to be disposed at a lateral side of an electronic device to cover at least a portion of a transmitting port, includes a body having two shielding sheets. Each shielding sheet includes a first portion close to the other shielding sheet and a second portion away from the other shielding sheet. A turn is formed between the first and the second portions so that a cross-section of the shielding sheet appears as a V shape. An opening of the V shape is adapted to face the lateral side. A slit is formed between the two shielding sheets and adapted to correspond to the transmitting port. A transmitting object is adapted to push the two first portions to enlarge the slit, so as to pass through the body and be plugged into the transmitting port. An electronic apparatus having the elastic cover is further provided.

Abstract: A total heat exchanger is provided. The total heat exchanger includes a housing, a total heat exchanging core, a first fan and a second fan. The housing includes a first side wall, a first receiving space, a second receiving space and a third receiving space. The third receiving space is adjacent to the first side wall. The total heat exchanging core is disposed in the third receiving space. The first fan is disposed in the first receiving space and communicates with the total heat exchanging core, wherein the first fan includes a first rotation axis. The second fan is disposed in the second receiving space and communicates with the total heat exchanging core, wherein the second fan includes a second rotation axis. The first fan, the second fan and the total heat exchanging core are arranged on a plane.

Abstract: The present invention provides methods to create a pattern part, and a subsequent mold core package, that can be used in the casting process to cast one or more die components having a near net-shape of the finished part. In this way, the present invention provides a cast part which greatly reduces the amount of finishing work that needs to be performed on the part after casting. Further, the present invention provides a method which involves less upfront stock material to cast the near net-shape of the desired die component part. The present invention accomplishes this by providing an efficient and effective automated method to determine where and how to add appropriate mechanical features to a design model part to produce a manufacturing model part in a CAD software program.

Abstract: The present invention discloses an audio codec with a jack detection function and an audio jack detection method. An embodiment of the audio codec comprises: a first-contact signal input end operable to electrically connect with a sleeve contact of a plug and receive a first-contact signal indicating the presence or absence of the plug; a second-contact signal input end operable to electrically connect with a ring contact or the sleeve contact of the plug and receive a second-contact signal indicating the presence or absence of the plug; a plug detecting circuit coupled to the first-contact or second-contact signal input end and operable to detect whether a voltage level of the first-contact or second-contact signal has changed to thereby generate a plug detection signal; and a control circuit coupled to the plug detecting circuit and operable to determine the presence or absence of the plug according to the plug detection signal.

Abstract: Heat sealable food packaging films, methods for the production thereof, and food packages comprising heat sealable food packaging films are provided. The heat sealable food packaging film includes a humidity-dependent permeable film having a moisture vapor transmission rate that increases with an increase in relative humidity (RH). An outer coating comprises a coating material on at least one surface of the humidity-dependent permeable film. The coating material is selected from a nanoclay dispersed in a poly-vinylidene chloride (PVdC) polymer or a stretchable urethane polymer, a stretchable acrylic polymer, or a combination of stretchable urethane polymer and stretchable acrylic polymer. The coating material may further comprise an anti-blocking agent. The heat sealable food packaging film is biaxially oriented.

Abstract: The present invention discloses a piezoelectric loudspeaker. The piezoelectric loudspeaker comprises a sound producing plate, a resonant sound-box, a surround and a reflective sound-box. The sound producing plate comprises a piezoelectric ceramic element. The resonant sound-box includes a first opening comprising a first carrying part. The sound producing plate is disposed on the first carrying part. A cavity resonator is formed between the sound producing plate and the resonant sound-box. The surround is disposed between the first carrying part and the sound producing plate. The reflective sound-box includes a second opening and a reflective output opening. The second opening comprises a second carrying part. The resonant sound-box is disposed on the second carrying part. A reflective cavity body is formed between the resonant sound-box and the reflective sound-box, and the reflective cavity body is connected the reflective output opening.

Abstract: An electronic apparatus includes a base and an electronic device. The base includes a first main body and at least one first connection portion. The first connection portion includes a rotating component, and the rotating component is pivoted to the first main body and has a driven portion and a positioning portion. The electronic device includes a second main body and at least one second connection portion. The second connection portion includes an elastic component and a positioning trench. The elastic component is connected to the second main body, and the positioning trench is formed on the second main body. When the base supports the electronic device so that the first connection portion is aligned to the second connection portion, the elastic component pushes the driven portion such that the positioning portion is engaged into the positioning trench.

Abstract: An air conditioner ventilation and pre-cooling device includes a carrying container, a cooling unit and an intake fan. The carrying container is provided for containing condensed water of the evaporator, the cooling unit is connected to the condensed water, and the intake fan guides outside air to pass through the cooling unit. The heat of the condensed unit is conducted to the cooling unit, and the outside air passes through the cooling unit and exchanges heat with the cooling unit to form a pre-cooled air. The outside air is pre-cooled before it enters into an indoor environment, so as to achieve the environmental protection and power saving effects and improve the cooling efficiency.

Abstract: The present invention discloses a gain control circuit capable of easing leakage current influence. According to an embodiment of the present invention, the gain control circuit comprises: at least one signal input end for receiving at least one input signal; a signal output end for outputting an output signal; an amplifier coupled between an amplifier input end and the signal output end; and a plurality of gain schemes. Each of the gain schemes is set between the at least one signal input end and the signal output end; and when one of the gain schemes is activated to generate the output signal, the rest gain schemes are inactivated to stop gain production and concurrently discharge leakage currents through their respective grounding paths.