Abstract: A cooling apparatus, comprising a mainboard and a cooling fan, where the novel cooling apparatus comprises: a heat sink, provided on the mainboard and affixed to one end of a vent of the cooling fan. The heat sink comprises: a groove, used for accommodating a heat-generating component provided on the mainboard; cooling fins, distributed within the heat sink and arranged on two sides of the groove. A venting and cooling channel is constituted between the interior of the heat sink and the vent of the cooling fan. The beneficial effect of the technical solution is such that, with other heat-generating components placed in the heat sink, the space in the heat sink is fully utilized, the fan is utilized to cool the heat sink and the heat-generating components therein, thus increasing the utilization rate of the fan, increasing the cooling efficiency, and effectively utilizing space.

Abstract: Provided are a charging device and a charging method. The charging device comprises: a charging device body and an engine starting interface provided on the charging device body, wherein the charging device body comprises: a power supply, a control unit, and at least one electromagnetic coil. The control unit is respectively connected to the power supply and the at least one electromagnetic coil, and the control unit is configured to control the at least one electromagnetic coil to generate a varying magnetic field when the amount of power of the power supply is greater than or equal to a pre-set amount of power and the charging device is wirelessly connected to a device to be charged, so that an internal coil of the device to be charged generates a varying current to cause the charging device to wirelessly charge the device to be charged.

Abstract: Provided are a charging device and a charging method, wherein same belong to the technical field of starting of a power supply. The charging device comprises: a charging device body and an engine starting interface provided on the charging device body, wherein the charging device body comprises: a power supply, a control unit, and at least one electromagnetic coil. The control unit is respectively connected to the power supply and the at least one electromagnetic coil, and the control unit is configured to control the at least one electromagnetic coil to generate a varying magnetic field when the amount of power of the power supply is greater than or equal to a pre-set amount of power and the charging device is wirelessly connected to a device to be charged, so that an internal coil of the device to be charged generates a varying current to cause the charging device to wirelessly charge the device to be charged.

Abstract: The present invention relates to a charging system based on wireless communication comprising: a mobile terminal, configured to transmit a control instruction and receive the query data matching user's selection according to the user's selection; a charging system, configured to receive the control instruction and charge a rechargeable battery pack according to the control instruction; a wireless communication, configured to interact with data between the mobile terminal and the charging system; wherein, the mobile terminal comprises: a query unit, configured to receive the query data inputted by the user and read the query data stored in a memory unit and matching the query according to the query data. User may get a charging curve and/or a remaining charging time according to the acquisition data. After charging completes, the mobile terminal will send a control instruction to stop charging so as to save energy and protect the battery.

Abstract: A charger system for battery starting current test, comprising: a battery equivalent circuit comprising a battery internal resistance R0 and an electromotive force E connected in series, two ends of the battery equivalent circuit are connected to a first signal and a second signal, respectively; a signal drive circuit, comprising a first DC output signal and a second DC output signal, and a first load circuit and a second load circuit configured between the first DC output signal and the second DC output signal, each load circuit is connected to the battery equivalent circuit and controlled by a first drive signal and a second drive signal; an intermediate resistor R28, configured between the signal drive circuit and the battery equivalent circuit. This invention uses the above technical solution to test the internal resistance of the battery, and find out the CCA value of the battery via the internal resistance correspondingly.

Abstract: The present invention relates to an inverter device. Regard to the problem in the traditional convert device that the user is difficult to obtain the information shown on the display panel in time; the state of the inverter can not be switched remotely after the user leaves; discharging or early switching-off caused by missing battery information; and the draught fan can only be at the state of ‘full-speed-start’ or switch-off, the invention provides an inverter device, it is configured with an extensible flexible wire to fix the display panel of the inverter to the place the user wants to for getting the information of the inverter in time; by virtue of wireless transmission, user can control the state of the inverter remotely; by adding a test module to the inverter device, it avoids the waste of electricity which is caused by the discharging of the battery-to-convert and switching off.

Abstract: The present invention relates to a charging system based on wireless communication comprising: a mobile terminal, configured to transmit a control instruction and receive the query data matching user's selection according to the user's selection; a charging system, configured to receive the control instruction and charge a rechargeable battery pack according to the control instruction; a wireless communication, configured to interact with data between the mobile terminal and the charging system; wherein, the mobile terminal comprises: a query unit, configured to receive the query data inputted by the user and read the query data stored in a memory unit and matching the query according to the query data. User may get a charging curve and/or a remaining charging time according to the acquisition data. After charging completes, the mobile terminal will send a control instruction to stop charging so as to save energy and protect the battery.

Abstract: A charger system for battery starting current test, comprising: a battery equivalent circuit comprising a battery internal resistance R0 and an electromotive force E connected in series, two ends of the battery equivalent circuit are connected to a first signal and a second signal, respectively; a signal drive circuit, comprising a first DC output signal and a second DC output signal, and a first load circuit and a second load circuit configured between the first DC output signal and the second DC output signal, each load circuit is connected to the battery equivalent circuit and controlled by a first drive signal and a second drive signal; an intermediate resistor R28, configured between the signal drive circuit and the battery equivalent circuit. This invention uses the above technical solution to test the internal resistance of the battery, and find out the CCA value of the battery via the internal resistance correspondingly.

Abstract: The present invention relates to an inverter device. Regard to the problem in the traditional convert device that the user is difficult to obtain the information shown on the display panel in time; the state of the inverter can not be switched remotely after the user leaves; discharging or early switching-off caused by missing battery information; and the draught fan can only be at the state of ‘full-speed-start’ or switch-off, the invention provides an inverter device, it is configured with an extensible flexible wire to fix the display panel of the inverter to the place the user wants to for getting the information of the inverter in time; by virtue of wireless transmission, user can control the state of the inverter remotely; by adding a test module to the inverter device, it avoids the waste of electricity which is caused by the discharging of the battery-to-convert and switching off.