Delta Electronics Patente

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Provided in the present invention is a cooling assembly, which comprises a housing, at least one power module and a cooling plate. The housing is internally provided with a first chamber and a second chamber. The top portions of the ends of a same side of the first chamber and the second chamber are respectively provided with an outlet and an inlet. The power module is located in the housing and at least partially overlaps the first chamber and the second chamber. The cooling plate is arranged on the power module. The cooling plate comprises at least two linear flow channels and a curved flow channel communicated with the ends of a same side of the two linear flow channels. When a working fluid flows from the first chamber to the second chamber successively through the outlet of the first chamber, an inlet of the cooling plate, one of the two linear flow channels, the curved flow channel, the other one of the two linear flow channels, an outlet of the cooling plate and the inlet of the second chamber, the working fluid has a same unit area average temperature along different cross sections in the width direction of the cooling plate.

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

Zusammenfassung wird geladen …

An inverter device (10) includes a casing (1), a heat source element (2), a heat dissipation structure (3) and a fan (4). The casing (1) has a base (11) and a cover (12) covering the base (11). An internal and an external surface (122) are defined on the cover (12). The inner surface is disposed corresponding to the base (11). The heat source element (2) is disposed in the casing (1) and arranged on the base (11). The heat dissipation structure (3) is thermal connected with the internal surface (121). The fan (4) is accommodated in the casing (1) corresponding to the heat dissipation structure (3). An air flow in the casing (1) is accelerated by the fan (4), and the heat dissipation structure (3) absorbs heat from the air flow in the casing (1) and thermal conductively transfers to the external surface (122) of the cover (12). A heat dissipation efficiency of the inverter device (10) is thereby improved and the inverter device (10) is thereby more durable.

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A switch trigger (1) is provided. The switch trigger (1) includes input and output terminals (11, 12), first and second switches (Q1, Q2), a bypass resistor (R1), an output capacitor (Co), a diode (D), a discharging resistor (R2), and first and second divider resistors (R3, R4). The first switch (Q1) has two terminals respectively and electrically connected to the input and output terminals (11, 12). The bypass resistor (R1) is electrically connected to the input and output terminals (11, 12). The diode (D) has an anode electrically connected to the input terminal (11). The second switch (Q2) has two terminals respectively and electrically connected to a cathode of the diode (D) and a third terminal of the first switch (Q1). The discharging resistor (R2) is electrically connected to the third terminal of the first switch (Q1) and the ground terminal. The first and second divider resistors (R3, R4) are electrically connected in series between the output and ground terminals, and a connection node therebetween is electrically connected to a third terminal of the second switch (Q2).

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A personnel presence detection device, a personnel presence detection system, and a personnel presence detection method are disclosed. The personnel presence detection device includes a signal transmitting module for transmitting Wi-Fi signals, a signal receiving module for receiving Wi-Fi reflected signals, a processor for obtaining channel state information (CSI) data based on the Wi-Fi reflected signals, and a computing module for identifying a main radio-frequency path from CSI data set. The computing module processes the CSI data set to determine whether the highest frequency value falls within the respiratory frequency range and generate a first detection result; determine whether the signal variance is greater than a preset value and generate a second detection result; determine whether the number of packets is less than a preset value and generate a third detection result. If any of the three detection results is true, it determines that a person is present.

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A power module of an electric assisted bicycle is disclosed and includes a pedal shaft, a housing, a motor, a reducer, a gear-plate-output shaft, a pedal-shaft first two-way bearing and an encoder component. The housing includes a partition portion extended along a radial direction to divide the housing into a motor accommodation portion and a reducer accommodation portion, respectively. The pedal shaft is disposed in the housing and passes through an end cap of the housing along an axial direction. An extension portion of the reducer is extended toward the end cap and connected to a supporting portion of the end cap through an input-shaft rear bearing. The supporting portion, the input-shaft rear bearing and the extension portion are sleeved from inside of an inner space of the housing to outside along the radial direction sequentially, so that facilitates axial directional configuration of the encoder component and increases usage space.

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Zusammenfassung wird geladen …

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Zusammenfassung wird geladen …

A power supply unit (2) includes an input terminal, an output terminal, a main circuit (20), an ORing field effect transistor (21), a driving circuit (23) and a switch (22). The main circuit (20) is connected between the input terminal and the output terminal. The ORing field effect transistor (21) is connected between the output terminal and the main circuit (20). The driving circuit (23) is connected with a control terminal of the ORing field effect transistor (21). The driving circuit (23) generates a control signal to control the ORing field effect transistor (21). The switch (22) is connected between the driving circuit (23) and the control terminal of the ORing field effect transistor (21). Before the power supply unit (2) is plugged into a system bus (3) of a power supply system (1), the control signal from the driving circuit (23) is bypassed by the switch (22). Consequently, the ORing field effect transistor (21) is turned off.

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Zusammenfassung wird geladen …