Abstract: A button assembly applied on an electronic device is provided. An electronic device includes a housing and a button assembly. The housing defines two through holes and includes a first latching member. The button assembly includes a button body and a sealing frame. The button body includes two keycaps and a waterproof layer. Each of the keycaps extends through one of the through holes and is external to the housing. The waterproof layer is made of elastic waterproof material. The sealing frame includes a second latching member and is fixed to the housing. The waterproof layer corresponding to the first latching member and the second latching member is deformed, which creates waterproof seal.

Abstract: An electronic device with sliding battery cover includes a housing, a battery holder formed in the housing, a fixing element rotatably connected to the battery holder, and a battery cover slidably connected to the fixing element to cover or uncover the battery holder. The battery holder is for placing at least one battery. The fixing element includes at least one conductive elastic element. When the battery cover covers the battery holder, each conductive elastic element contacts an electrode of one of the at least one battery placed in the battery holder, and the battery cover is locked to the battery holder; when the battery cover is to uncover the battery holder, a force applied to the battery cover makes the battery cover slide along the fixing element to unlock the battery cover from the battery holder.

Abstract: An exemplary electronic device includes a detecting component and a storage unit. The detecting component generates detecting signals when the electronic device has been disassembled. The storage unit stores disassemble history information based on detecting signals received from the detecting component.

Abstract: A transmission device includes a holder, a pivot shaft, and an elastic member. The holder defines a receiving hole. The pivot shaft is received in the receiving hole. The elastic member is received in the receiving hole, fixed to the holder, and tightly enfolds the pivot shaft. When torques applied to the holder or the pivot shaft are larger than a predetermined value, the elastic member is deformed such that the pivot shaft rotates relative to the holder.

Abstract: A kinetic energy collection device is mounted on a vehicle body. The vehicle body includes drive disks rotated synchronously with wheels of the vehicle body. The kinetic energy collection device includes transmission units, a lift out unit, electrical generators, and an electrical storage. The transmission units are slidably mounted on the vehicle body and include friction disks. The lift out unit includes a braking controller, a pull rod connected with the braking controller, and connection rods rotatably connect the pull rod to the transmission units. The braking controller drives the pull rod to move in response to user's operations, so as to drive the connect rods to rotate, and thus to drive the friction disks of the transmission units to engage or disengage with the drive disks correspondingly. The transmission units drive the electrical generators to generate power. The electrical storage unit stores power generated by the electrical generators.

Abstract: A fixed base comprises an upper cover comprising an outer canister a top plate and a sidewall. The sidewall encircles the top plate to form a receiving room. An inner canister penetrates the receiving room and is attached to the top plate, which comprises a wall. At least one hatch is defined in the wall, and is connected to the receiving room. A positioning component is set inside the surface of the top plate. A limitation frame comprises a frame body, a connecting block, and a positioning block. The positioning block is slidably connected to the positioning component. At least one groove opposite the hatch is defined in the wall of the frame body, and comprises a sliding groove and a fixing groove connecting with the sliding groove. The fixed base further comprises a driver and a trigger switch.

Abstract: The tidal power generator includes a hollow container, an impeller designed for unidirectional rotation, an electric generator fixed in the container, and a chargeable power source. A first opening and an opposite second opening are defined in the container. The impeller is positioned at the second opening and configured for unidirectionally rotating pushed by air flow. The electric generator includes a stator and a rotor extending from the stator. The rotor is fixedly connected to the impeller. The rotor rotates with rotation of the impeller so that the stator outputs electrical energy. The power source is configured for storing the output electrical energy.

Abstract: An electronic assembly comprises a rotation device comprising a fixed platform defining a through hole. An annular groove is formed in the inside wall of the fixed platform. A first transmission element seats a plurality of teeth. A second transmission element is located in the through hole, and comprises a threaded axis portion and a toothed portion meshing with the plurality of teeth. A third transmission element comprises a rotation portion rotatably mounted in the interior of the annular groove of the fixed platform. A threaded hole is defined in the rotation portion, and is configured for cooperating with the threaded axis portion. A driver source is fixed on the fixed platform and is configured for rotating the first transmission element. An electronic device is mounted on the third transmission element.

Abstract: A transmission device includes a first transmission mechanism and a second transmission mechanism. The first transmission mechanism includes a first rotating portion and an engaging portion fixed on the first rotating portion. The second transmission mechanism includes a second rotating portion and at least one overload protection subassembly. The at least one overload protection subassembly includes a transmission member pivotally attached on the second rotating portion and two flexible members resisting against an opposite end of the transmission member at two opposite rotating directions of the transmission member to make the transmission member locate at a non-rotatable position with respect to the first rotating portion. An end of the transmission member engages the engaging portion to rotate with the first transmission mechanism.

Abstract: A charging system includes a robot and a charging apparatus. The robot includes a rechargeable battery, a power receiving terminal electrically connecting with the rechargeable battery, and a detector for detecting a voltage of the battery. The charging apparatus for charging the robot includes a base comprising a receiving portion defining a sliding slot, a power supplying terminal disposed in the receiving portion and configured for electrically contacting with the power receiving terminal, a positioning board docked in the receiving portion for loading the robot, and a driving device including an inclined surface contacting with the positioning board via the sliding slot. The detector may send a control signal to the driving device to push the positioning board with the robot up from the receiving portion.

Abstract: A slide type electronic device is provided. The electronic device includes a base; a sliding member slidably connected to the base; a release assisting mechanism includes an angled groove and a resilient member, the angled groove includes a first groove and a second groove, the first groove and the second groove extend to form an angle and meet at an intersection, the resilient member includes a protrusion received in the angled groove; when the sliding member slides relative to the base, the resilient member moves with the sliding member and the protrusion is guided to move along the angled groove, which causes the resilient member to bend elastically; after the protrusion passes the intersection, the protrusion engages one of the first groove and the second groove, which facilitates the sliding of the sliding member via the restoration of the resilient member.

Abstract: A transmission device includes a first transmission mechanism comprising a first rotatable member and a first transmission member fixed to the first rotatable member for rotating together with the first rotatable member; and a second transmission mechanism comprising a second rotatable member and a second transmission member fixed to the second rotatable member for rotating together with the second rotatable member. The second transmission member received in the first transmission member, and the second transmission member being magnetically connected with the first transmission member. When a load applied to the first transmission mechanism is less than a predetermined value of the first transmission mechanism, the first transmission member rotates together with the second transmission member by a magnetic force generated therebetween, which in turn makes the first transmission mechanism rotates with the second transmission mechanism together.

Abstract: An electronic device with sliding battery cover includes a housing, a battery holder formed in the housing, a fixing element rotatably connected to the battery holder, and a battery cover slidably connected to the fixing element to cover or uncover the battery holder. The battery holder is for placing at least one battery. The fixing element includes at least one conductive elastic element. When the battery cover covers the battery holder, each conductive elastic element contacts an electrode of one of the at least one battery placed in the battery holder, and the battery cover is locked to the battery holder; when the battery cover is to uncover the battery holder, a force applied to the battery cover makes the battery cover slide along the fixing element to unlock the battery cover from the battery holder.

Abstract: A simulated eye is capable of being changed between a contracted state and a dilated state. The simulated eye includes a housing having at least one guiding post, a driving device housed in the housing, a transmission member movably coupled to the driving device, an eyeball having a transparent portion, an elastic film including a simulated pupil, and a stopper. The simulated pupil is viewable at the transparent portion. The stopper is attached to the at least one guiding post, and is sandwiched between the elastic film and the transmission member. When the driving device drives the transmission member, a size of the simulated pupil is changeable, whereby the simulated eye is changed between the contracted state and the dilated state.

Abstract: A time indication device includes a time display body, a controller, an hour hand module, a minute hand module, and a second hand module. The hour hand module includes an hour hand ring placed around the time display body. An hour hand driving unit connected to the controller, and controlled by the controller to drive the hour hand ring to rotate around the time display body. An hour hand projecting unit, fixed to the hour hand ring, for projecting an hour hand on the time display body. Thus, when the hour hand ring is driven by the hour hand driving unit to rotate around the time display body, it is shown that the hour hand moves on the time display body. The minute hand module and the second hand module have nearly the same structure as the hour hand module.

Abstract: An electronic device includes a housing, a button mechanism fixed to the housing, a switch circuit, at least two switches and at least one support. The button mechanism includes a button body, at least two buttons integrated on the button body, and a stopper formed between every each two adjacent buttons. The switches are covered by the button mechanism and connect to the switch circuit. The at lease one support is fixed to the housing and one of the at least one support is positioned between two adjacent switches. When one of the buttons is pressed, the pressed button activates the corresponding switch and the adjacent support of the switch resists the adjacent stopper of the pressed button.

Abstract: An electronic device includes a main body and a rotatable supporter. The main body includes a housing and an elastic element fixed to the inner surface of the housing. One end of the rotatable supporter connects to the housing. The rotatable supporter includes a shaft and a positioning element. The positioning element passes through the housing to contact the elastic element and includes at least two engaging surfaces. The rotatable supporter is connected to the housing through the shaft. When one of the engaging surfaces contacts the elastic element in parallel, the rotatable supporter is maintained at a position. When the rotatable supporter is rotated to deform the elastic element and make another engaging surfaces contacts the elastic element in parallel, the rotatable supporter is maintained at another position.

Abstract: The electronic device includes a body defining an accommodating space, a printed circuit board (PCB) mounted in the body, and a pair of strip-shaped electric joint elements electrically connected to the PCB. Each electric joint element is formed on a sidewall bounding the accommodating space. The accommodating space is configured to accommodate a first battery. The first battery is slid along the pair of strip-shaped electric joint elements and the pair of strip-shaped electric joint elements is electrically engaged with the first battery. The strip-shaped electric joint elements are aligned in parallel to each other. When the first battery is replaced by a second battery, the pair of strip-shaped electric joint elements can be engaged with both the first battery and the second battery at the same time.

Abstract: A wrist worn device is provided. The wrist worn device includes a case, a back cover, a strap, and two spring pins. The case includes two pairs of spaced lugs. Each of the spaced lugs defines an axle hole. The back cover includes two opposite sidewalls. Each of the sidewalls defines a groove. The strap defines two through holes. Each of the through holes is adjacent to one of the opposite ends thereof. The strap includes two projections. Each of the projections protrudes from one of two opposite ends of the strap and is received in one of the grooves. Each of the spring pins extends through one of the through holes of the strap, and includes two telescoping axles. Each of the axles is received in one of the axle holes.

Abstract: A button assembly applied on an electronic device is provided. An electronic device includes a housing and a button assembly. The housing defines two through holes and includes a first latching member. The button assembly includes a button body and a sealing frame. The button body includes two keycaps and a waterproof layer. Each of the keycaps extends through one of the through holes and is external to the housing. The waterproof layer is made of elastic waterproof material. The sealing frame includes a second latching member and is fixed to the housing. The waterproof layer corresponding to the first latching member and the second latching member is deformed, which creates waterproof seal.