Abstract: A connection mechanism connecting the main body and display of an electronic device includes an arm, a first hinge connecting the main body with the arm, a second hinge connecting the arm with the display, and a magnetic element disposed on the arm for exerting a magnetic attraction force on the display. When the arm rotates in a first direction relative to the main body with an included angle between the main body and the display smaller than a critical angle, a first torque opposite to the first direction is provided by the first hinge. When the arm continues rotating relative to the main body with the included angle between the main body and the display exceeding or equaling the critical angle, a second torque opposite to the first direction is provided by the first hinge, wherein the second torque exceeds the first torque.

Abstract: A lecture system is provided for the user to operate the teaching file on a display of an electronic device, the lecture system including a first sensor unit, a timer unit, a switch unit and a scroll unit. The first sensor unit is disposed corresponding to a first operating area; the timer unit electrically connects the first sensor unit and is installed with a threshold value; the switch unit electrically connects the timer unit and the first sensor unit for the user to switch between a first and a second input modes by operating on the first operating area for a first period of time less than the threshold value. The scroll unit electrically connects the timer unit and the first sensor unit for the user to scroll through the teaching file by operating on the first operating area for a second period of time longer than the threshold value.

Abstract: A transformer is disclosed. The transformer includes a first pin, a second pin, a first side winding, a second side winding, and a jump pin. The second side winding is coupled to the first pin and the second pin. The first pin is between the jump pin and the second pin. The jump pin is coupled to the second pin inside the transformer.

Abstract: The invention discloses a combined transformer. The combined transformer includes a first core, a second core, a first primary coil, a first secondary coil, a second primary coil, and a second secondary coil. The first core includes a first side pillar and a second side pillar. The second core includes a third side pillar and fourth side pillar. The first primary coil winds around the first side pillar. The first secondary coil winds around the third side pillar which corresponds to the first primary coil. The second primary coil winds around the second side pillar. The second secondary coil winds around the fourth side pillar which corresponds to the second primary coil. The first core and the second core form a first magnetic path and a second magnetic path. The first primary coil, the first secondary coil, and the first magnetic path form a first transformer. The second primary coil, the second secondary coil, and the second magnetic path form a second transformer.

Abstract: The invention discloses a transformer and a backlight apparatus. The backlight apparatus includes a power module, a lamp and a transformer. The transformer includes a bobbin, a primary winding, a secondary winding, a first conductive plate and a second conductive plate. The bobbin has a high-voltage winding region and a pin. The primary winding is coupled to the power module. The secondary winding is wound on the high-voltage winding region and one end of the secondary winding is electrically connected to the pin, which is further coupled to the lamp of the backlight apparatus. A separation plate is disposed on the high-voltage winding region. The first conductive plate is disposed in the separation plate and electrically connected to the pin. The second conductive plate is disposed in the separation plate and located corresponding to the first conductive plate. Accordingly, the first conductive plate and the second conductive plate form a capacitor.

Abstract: A transformer is disclosed. The transformer includes a first pin, a second pin, a first side winding, a second side winding, and a jump pin. The second side winding is coupled to the first pin and the second pin. The first pin is between the jump pin and the second pin. The jump pin is coupled to the second pin inside the transformer.

Abstract: The invention discloses a transformer for a backlight apparatus including a lamp and a detecting unit. The transformer includes a bobbin, a first winding and a second winding. The bobbin has a low-voltage winding region and a high-voltage winding region. The first winding is wound on the high-voltage winding region and is coupled to the lamp. The low-voltage winding region has a first pin, a second pin and a third pin. Firstly, the second winding is wound on the first pin and then wound on the low-voltage winding region for M turns. Next, the second winding is drawn out from the low-voltage winding region, then wound on the second pin, and then drawn back to be wound on the low-voltage winding region for N turns again. Afterwards, the second winding is drawn out again and wound on the third pin, where each of M and N is a nature number. In addition, the third pin is coupled to the detecting unit.

Abstract: The invention discloses a multi-lamp backlight apparatus. The multi-lamp backlight apparatus includes a first lamp, a second lamp, a controlling unit, a resonating unit, and a balance transformer. The controlling unit is used for generating a controlling signal. The resonating unit is used for converting the controlling signal into a resonating signal. The balance transformer includes a primary winding, a first secondary winding, and a second secondary winding. The primary winding is used for receiving the resonating signal. The first secondary winding is corresponding to the primary winding and coupled to the first lamp. The second secondary winding is corresponding to the primary winding and coupled to the second lamp.

Abstract: A universal insert for carrying a BGA package under test primarily comprises a meshed base, at least a latch, and a plurality of lift pins. The meshed base has a component cavity, a mounting surface and a plurality of aligning ball holes in the component cavity where the aligning ball holes are arranged in an array with equal pitch. The latch is disposed inside the meshed base to firmly hold BGA package under test. The lift pins are flexibly extended from the peripheries of the mounting surface of the meshed base. During probe testing, the component cavity accommodates the BGA package inside, at least some of the aligning ball holes are one-on-one aligned to a plurality of solder balls of the BGA package so that the solder balls are exposed from the corresponding aligning ball holes on the mounting surface.

Abstract: A water purifying device includes a body with purifying material received therein and the body includes an inlet and an outlet. A first connection device and a second connection device are respectively connected to the inlet and the outlet so as to connect with different parts. The first connection device includes a box with a hole defined therethrough and a slot is defined in a side of the box so that a clamp with two clamp portions is movably inserted into the slot. The two clamp portions each include two recesses so as to form two circular holes defined between the two clamp portions and hoses or connectors of different sizes can be engaged with the circular holes. The second connection device can be a threaded part for threadedly connecting with another part.

Abstract: A hose reel device includes a casing and a rotatable member having a mandrel is rotatably connected to a side of the casing. A first passage is defined through a wall of the casing so that the hose is wrapped around the mandrel via the first passage. A roller and a cam are respectively received in an opening defined in an outer surface of the casing and communicating with the first passage. The cam is connected to a lever on the side of the casing so that a gap between the roller and the cap can be adjusted by pivoting the lever. The water in the hose can be squeezed out by adjusting the gap.

Abstract: A trigger nozzle includes a barrel connected to a handle and a nozzle head is connected to a front end of the barrel. A water adjustable device is received in the trigger nozzle and includes an operation shaft which controls the volume of water entering the barrel. A trigger is connected to the barrel so as to operate the operation shaft and a knob is connected to the operation shaft and located at a rear end of the barrel so that the user may rotate the knob to change the volume of the water entering the barrel without soaking his/her hand.

Abstract: A trigger nozzle includes a barrel connected to a handle and a nozzle head is connected to a front end of the barrel. A water adjustable device is received in the trigger nozzle and includes an operation shaft which controls the volume of water entering the barrel. A trigger is connected to the barrel so as to operate the operation shaft and a knob is connected to the operation shaft and located at a rear end of the barrel so that the user may rotate the knob to change the volume of the water entering the barrel without soaking his/her hand.