A plastic window includes a plastic window body, a conductive portion, a first bus bar, and a second bus bar. The window body is formed in a plate shape and has a first surface and a second surface on both sides thereof. The conductive portion and the first bus bar are made of a conductive material and disposed on the second surface of the window body. The first bus bar is electrically connected to the conductive portion. The second bus bar is made of a conductive metal strip and disposed to be electrically connected to the first bus bar. The second bus bar has a main body, first fixing portions, and second fixing portions. The first fixing portions fix the main body to the second surface. The second fixing portions extend from the main body along the second surface and are attached to the first bus bar.

A plastic window includes a plastic window body, a conductive portion, a first bus bar, and a second bus bar. The window body is formed in a plate shape and has a first surface and a second surface on both sides thereof. The conductive portion and the first bus bar are made of a conductive material and disposed on the second surface of the window body. The first bus bar is electrically connected to the conductive portion. The second bus bar is made of a conductive metal strip and disposed to be electrically connected to the first bus bar. The second bus bar has a main body, first fixing portions, and second fixing portions. The first fixing portions fix the main body to the second surface. The second fixing portions extend from the main body along the second surface and are attached to the first bus bar.

A leakage current compensation system may be used in an appliance such as a cooking appliance or another device utilizing a sheathed electrical heating element, and may sense a leakage current in one or more phases of a multi-phase power circuit that supplies the appliance or other device using a current transformer and generate a compensating current in a different phase of the multi-phase power circuit to compensate for the leakage current and thereby reduce the likelihood of a false GFCI trip in the multi-phase power circuit.

A leakage current compensation system may be used in an appliance such as a cooking appliance or another device utilizing a sheathed electrical heating element, and may sense a leakage current in one or more phases of a multi-phase power circuit that supplies the appliance or other device using a current transformer and generate a compensating current in a different phase of the multi-phase power circuit to compensate for the leakage current and thereby reduce the likelihood of a false GFCI trip in the multi-phase power circuit.

The present disclosure relates to a structural coating and preparation method and use thereof. The structural coating provided in the present disclosure includes a titanium transition layer and platinum-hafnium composite structure layers laminated in sequence on a surface of a substrate; the number of the platinum-hafnium composite structure layer is ≥3; the platinum-hafnium composite structure layer includes a hafnium layer and a platinum layer laminated in sequence.

The present utility model relates to a graphite furnace locking device, comprising: a stationary part which is provided with a locking unit, a movable part which is arranged along a first direction facing the stationary part, the movable part being provided with a latch bolt unit; wherein, the movable part may move towards the stationary part along the first direction until the latch bolt unit and the locking unit are connected and then the locking device is in a locked state; the latch bolt unit provides a first elastic force for the movable part towards the direction of the stationary part; the locking unit is used to disconnect from the latch bolt unit, and then the locking device is in an unlocked state; the latch bolt unit provides a second elastic force for the movable part in a direction away from the stationary part, and the movable part can move away from the stationary part in the first direction under the action of the second elastic force to its initial position. For the locking device of the present utility model, when it is under an unlocked state, the movable part is automatically sprung away to prevent the operator from being injured by scalding.

The subject application provides a portable electronic heating type device with an improved power converter topology configured for receiving a DC input voltage from the power supply and generate an AC output voltage to the heating element. The power converter is based on an inductor, a DC blocking capacitor and only one switching device. Heating power can be adjusted under a pulse-width-modulation mode, a fixed-on-time mode, a fixed-off-time mode or a frequency-modulation mode. The portable electronic heating type device has less switching loss and faster response. Therefore, it can be operated at higher frequency and more compact in size.

The subject application provides a portable electronic heating type device with an improved power converter topology configured for receiving a DC input voltage from the power supply and generate an AC output voltage to the heating element. The power converter is based on an inductor, a DC blocking capacitor and only one switching device. Heating power can be adjusted under a pulse-width-modulation mode, a fixed-on-time mode, a fixed-off-time mode or a frequency-modulation mode. The portable electronic heating type device has less switching loss and faster response. Therefore, it can be operated at higher frequency and more compact in size.

A heating light source device includes a plurality of heating light source modules; each of the heating light source modules includes; a light-emitting element substrate having a placement surface and a back side surface, the back side surface being opposite to the placement surface; a plurality of light-emitting elements mounted on the placement surface; and a cooling member being in contact with the back side surface and including a cooling channel formed inside the cooling member and that communicates cooling medium for cooling the light-emitting elements, an inlet port that introduces the cooling medium into the cooling channel, an outlet port that discharges the cooling medium to the outside of the cooling member; and the cooling channel has a spiral shape being gradually from a center portion side of the light-emitting element substrate to a circumferential edge portion side thereof when viewed from a direction orthogonal to the placement surface.

A heating light source device includes a plurality of heating light source modules; each of the heating light source modules includes; a light-emitting element substrate having a placement surface and a back side surface, the back side surface being opposite to the placement surface; a plurality of light-emitting elements mounted on the placement surface; and a cooling member being in contact with the back side surface and including a cooling channel formed inside the cooling member and that communicates cooling medium for cooling the light-emitting elements, an inlet port that introduces the cooling medium into the cooling channel, an outlet port that discharges the cooling medium to the outside of the cooling member; and the cooling channel has a spiral shape being gradually from a center portion side of the light-emitting element substrate to a circumferential edge portion side thereof when viewed from a direction orthogonal to the placement surface.