Abstract: A projector includes a base and a cover configured to be attached on the base. The base is equipped with a cooling fan, a light module and a cooling member. An air inlet and an air outlet are located on the two sides of the light module. The cooling member is aligned with the air outlet and close to the cooling fan. The cooling member guides the airflow to flow to the cooling fan. The air inlet, the air outlet, the cooling member, and the cooling fan define an air path, and the airflow is guided out of the projector under an action of the cooling fan.

Abstract: A projector includes a shell, a projection lens, an optical engine module, a power supply module a light source module and a fan. The shell defines an air inlet, an air outlet and forms a first room, a second room and a third room. The first room and the second room communicate with the air inlet. The third room communicates with the air outlet. The projection lens and the optical engine module are positioned in the first room. The power supply module is positioned in the second room. The light source module is positioned in the third room. Heated air in the first room can flows to the second room. Heated air in the second room can flows to the third room. The fan is positioned in the third room to expel heated air from within the shell.

Abstract: A projector includes a shell, a projection lens, an optical engine module, a power supply module a light source module and a fan. The shell defines an air inlet, an air outlet and forms a first room, a second room and a third room. The first room and the second room communicate with the air inlet. The third room communicates with the air outlet. The projection lens and the optical engine module are positioned in the first room. The power supply module is positioned in the second room. The light source module is positioned in the third room. Heated air in the first room can flows to the second room. Heated air in the second room can flows to the third room. The fan is positioned in the third room to expel heated air from within the shell.

Abstract: A projector includes a base and a cover configured to be attached on the base. The base is equipped with a cooling fan, a light module and a cooling member. An air inlet and an air outlet are located on the two sides of the light module. The cooling member is aligned with the air outlet and close to the cooling fan. The cooling member guides the airflow to flow to the cooling fan. The air inlet, the air outlet, the cooling member, and the cooling fan define an air path, and the airflow is guided out of the projector under an action of the cooling fan.

Abstract: A heat dissipation device includes a plate and a plurality of shaped fins. The plurality of fins extends from the plate. The plate includes a fixing portion located on one side of an air inlet and a heat dissipation portion extending from the fixing portion. The heat dissipation portion includes a side portion. The side portion includes at least two side edges connected with each other. The end of each fin is identically slanted, a side end is opposite to the slant end. The side end of each fin is aligned with one of the two side edges. A heat dissipation system is also provided.

Abstract: An electronic device enclosure includes a cabinet, a door movably mounted to the cabinet, and a limiting block rotatably mounted to the door. The cabinet includes a first side plate. The door defines a limiting slot. The door is movable relative to the cabinet between a closed position and an open position. When the door is located in the closed position, the door is substantially perpendicular to the first side plate and covers the cabinet. When the door is located in the open position, the door is substantially parallel to the first side plate, and the limiting block is engaged in the limiting slot, which prevents the door from dropping.

Abstract: An electronic device enclosure includes a cabinet, a door movably mounted to the cabinet, and a limiting block rotatably mounted to the door. The cabinet includes a first side plate. The door defines a limiting slot. The door is movable relative to the cabinet between a closed position and an open position. When the door is located in the closed position, the door is substantially perpendicular to the first side plate and covers the cabinet. When the door is located in the open position, the door is substantially parallel to the first side plate, and the limiting block is engaged in the limiting slot, which prevents the door from dropping.

Abstract: A vending machine supplying heated goods includes a cabinet and an output delivering device mounted to the cabinet. The cabinet defines a product storing area, a receiving area, and a pickup opening communicating with the receiving area. The output delivering device includes a delivering strap and a heating box mounted to the delivering strap. The heating box receives and heats one of the plurality of products and the delivering strap is then driven to move to drive the heating box to move to a position in which the product drops out of the heating box into the receiving area for the customer to pick up.

Abstract: A fixture is for installing a hard disk to a hard disk cage in a computer the fixture. The fixture includes a holding portion and a supporting portion connecting with the holding portion. The supporting portion includes a main plate and a side plate bending from the main plate. A slot is defined between the main plate and the side plate, for receiving the hard disk cage and retaining the fixture to the hard disk cage.

Abstract: A baffle plate disassembling instrument for an electronic device is disclosed. The baffling plate disassembling instrument for a comprises a handle; a bracket mounted on a top end of the handle; and two engaging members mounted on a top side of the bracket, the two engaging members are configure to be inserted into the baffling plate; wherein a distance between the two engaging members is adjustable according to the baffling plate.

Abstract: A method for manufacturing anti-EMI shields on a computer chassis includes the following steps. An anti-EMI plate and a plate on the computer chassis are separately cut into desired dimensions by a cutting machine. The anti-EMI plate and the plate with are washed with cleaning agent. The anti-EMI plate is glued on an EMI area of the plate. The plate is pre-dried with the anti-EMI plate by a drying machine. The anti-EMI plate is pre-pressed onto the plate by a pressing machine. The anti-EMI plate is pressed onto the plate by the pressing machine. The plate is quick dried with the anti-EMI plate by the drying machine. The plate is stamped into desired shape with the anti-EMI plate by a stamping machine.

Abstract: A method for manufacturing anti-EMI shields on computer chassis, the method includes the following steps. The anti-EMI plate is glued to the computer chassis. The anti-EMI plate is pressed onto the plate by a pressing machine, and then the plate is quick dried with the anti-EMI plate by a drying machine. The plate is cut into desired dimension with the anti-EMI plate by a cutting machine, and the plate is stamped into desired shape with the anti-EMI plate by a stamping machine.

Abstract: A control circuit for controlling current through LEDs of an LED lamp includes a voltage regulator, a feedback circuit with an amplifier and a photo-resistor. The voltage regulator includes an output terminal connecting with the LEDs and a feedback terminal. The amplifier includes an in-phase input end coupling with an output end of the LEDs, an out-phase input end and an output end connected to the feedback terminal of the voltage regulator. The photo-resistor is connected between the out-phase input end of the amplifier and the ground. The photo-resistor has a resistance increasing along with a decrease of the light intensity of the LEDs. The increase of resistance of the photo-resistor is fed back to the voltage regulator via the amplifier, to thereby increase the electric current through the LEDs to maintain the light intensity of the LED lamp within an acceptable range.

Abstract: A mounting mechanism for a storage device includes a bracket for receiving the storage device therein, and a pressing member. The bracket includes a sidewall defining at least one opening, and a bottom wall defining at least one guiding member for guiding and supporting a bottom surface of the storage device. A supporting member is located below the opening to resist the bottom surface of the storage device. The pressing member attached to the sidewall of the bracket for sandwiching the storage device between a bottom surface of the pressing member and the bracket.

Abstract: A mounting apparatus includes a drive bracket, and a restricting member. The drive bracket is secured to a front plate of an electronic enclosure, and includes a bottom plate and a side plate connected to the bottom plate. A path, substantially parallel to the bottom plate, is defined in the side plate. A connecting portion, substantially perpendicular to the bottom plate, is located in the path. The restricting member includes a resisting portion connected to the connecting portion and received in the path. A first end of the resisting portion is located on an outer surface of the side plate, a second opposite end of the resisting portion extends into an inner surface of the side plate, and the second opposite end of the resisting portion abuts a storage device.

Abstract: A connector assembly includes a first male connector, a second male connector, and a female connector. The female connector defines two receiving slots side by side. The first male connector includes a first body, a first inserting terminal, extending downwardly from the first body, and a first securing portion. The first inserting terminal engages one of the receiving slots of the female connecter. The second male connector includes a second body; a second inserting terminal, extending downwardly from the second body; and a second securing portion, engaging the slot of the first male connector. The second inserting terminal engages the other one of the receiving slots of the female connecter.

Abstract: A fan controlling circuit for detecting rotational speed of a fan, includes a comparison circuit and a controlling chipset. The comparison circuit receives a rotational speed signal from the fan at one input terminal, a reference voltage at another input terminal, and outputs a filtered rotational speed signal at an output terminal. The controlling chipset receives the filtered rotational speed signal, and outputs control signals to control the rotational speed of the fan.

Abstract: A mold assembly includes a mold moving half, at least one heat sink positioned on the mold moving half, and a plurality of heat pipes positioned on the mold fixed half and on the at least one heat sink. The at least one heat sink includes a plurality of parallel fins. The plurality of parallel fins is secured to the heat pipes with the heat pipes passing therethrough. The heat pipes are capable of moving together with the mold moving half.

Abstract: A computer enclosure includes a cover and a chassis. The cover includes a clasp. The chassis includes a flange. The flange defines an engaging hole and a cutout adjacent to the engaging hole. An edge of the cutout extends in the cutout to form an elastic clip. The clip includes a driving portion which is located below the flange. The clasp penetrates the engaging hole to engage with the driving portion, and simultaneously pushes the driving portion to place the clip in contact with the cover.

Abstract: A lamp assembly includes a storage tank, a lamp, a liquid inlet pipe, a liquid outlet pipe and an actuator. The storage tank contains liquid therein. The lamp includes a lighting portion and a lid located at a top of the lighting portion. A flume is defined between a top end of the lighting portion and the lid. The liquid inlet pipe connects a first end of the storage tank and a corresponding end of the flume. The liquid outlet pipe connects an opposite second end of the storage tank and a corresponding end of the flume of the lamp. The actuator drives the liquid to circulate between the storage tank and the flume of the lamp to thereby dissipate heat generated by the lamp.