Abstract:
An electric automobile and a discharging device thereof. The discharging device (100) comprises: an AC charging port (110), the AC charging port being connected to a charging post and the charging post being connected to a power grid, for transmitting an output alternating current to the power grid through the charging post; an instrument (120), for sending a discharging preparation instruction after receiving a trigger signal; a controller (130), for receiving the discharging preparation instruction, detecting whether the AC charging port is connected to the charging post and detecting whether a pulse width modulation (PWM) wave of a preset voltage exists therein, and if yes, switching to an external discharging mode; a battery manager (140), for controlling an external discharging circuit in a high-voltage distribution cabinet attached to an electric automobile after the controller switches to the external discharging mode; and a power battery (150), for providing a direct current through the external discharging circuit in the high-voltage distribution cabinet. The discharging device is advantageous in having simplicity, high efficiency and applicability.
Abstract:
A power battery device (100) includes: a battery tray (1) having a positioning member (11) provided on the upper surface thereof; and a plurality of battery modules (2) disposed on the battery tray (1) and arranged in at least two layers in an up-down direction, each battery module comprising: a housing (21) having a first positioning portion disposed on the upper surface of the housing (21) and a second positioning portion disposed on the lower surface of the housing (21); a battery disposed within the housing (21), the first positioning portion of the housing in a lower layer is matched with the second positioning portion of the housing in an upper layer, and the battery modules (2) in the lowermost layer of the battery modules are positioned by the positioning member (11).
Abstract:
A housing assembly (200) for a battery module (1000) includes a plurality of brackets (1) disposed side by side in the front-rear direction and connected by a snap, and each two adjacent brackets (1) defining a space for receiving the battery (100); a plurality of copper bars (2) disposed vertically on the brackets (1) and having a through-hole adapted for extending an electrode of the battery; and a plurality of insulating frames (3) disposed on the copper bars (2) to cover the electrodes of the batteries; wherein the insulating frame (3) is connected with the bracket (1) by a snap and has an extension direction as same as that of the copper bar (2). A battery module including the housing assembly is also provided.
Abstract:
A method for controlling a power battery is provided. The method includes: detecting a maximum temperature and a minimum temperature of the plurality of single cells, a plurality of first temperatures of positive electrodes and/or a plurality of second temperatures of negative electrodes, and a plurality of third temperatures of cores; determining whether the plurality of first temperatures and/or the plurality of second temperatures are within a first temperature range; determining whether the plurality of third temperatures are within a second temperature range; managing the power battery; and judging that a connection failure occurs in the power battery if one of the plurality of first temperatures and/or one of the plurality of second temperatures is not within the first temperature range; and determining a core related failure if the third temperature of a first single cell is not within the second temperature range. Further, a system for controlling a power battery is provided.
Abstract:
A steering power system for an electric vehicle and a method for controlling same are provided. The steering power system includes: a steering motor (M); a steering motor controller (10), configured to control the steering motor (M); a high voltage power battery (20), configured to output a first voltage; a low voltage storage battery (30), configured to output a second voltage; a buck DC-DC converter (40), configured to convert the first voltage into the second voltage for being supplied to the low voltage storage battery (30) when a high voltage system (70) works; and a boost DC-DC converter (50), configured to convert the second voltage into the first voltage. When the high voltage system (70) has an abnormal power failure, the boost DC-DC converter (50) converts the second voltage outputted from the low voltage storage battery into the first voltage for being supplied to the steering motor controller (10). The steering power system improves driving safety of the electric vehicle.
Abstract:
This application discloses a heat dissipator (10) for a charging connector (20), a heat dissipation device (100) and a vehicle. The heat dissipator (10) comprises a body (1) formed to have a cooling chamber (11) and an internally circumferentially defined receiving hole (3), wherein the receiving hole (3) is configured to accommodate the charging connector (20).
Abstract:
A lamp for a compartment of a vehicle includes: a base, a mounting plate disposed on the base and having a power source receiving part, a power source received in the power source receiving part, and a lamping source disposed on the mounting plate and having a luminous region of a sector shape. The power source receiving part is located at a side of the lamping source.
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group of the electric vehicle are provided. The power system comprises: a battery group; a battery heater, in which the battery heater comprises a output power adjusting module configure to adjust a heating power of the battery heater by adjusting a charge current and/or a discharge current; a battery management device configured to control the output power adjusting module to adjust the heating power of the battery heater to heat the battery group according to a temperature of the battery group when the temperature of the battery group is lower than a first heating threshold and a residual electric quantity of the battery group is larger than a parking electric quantity threshold; a motor controller connected with a motor and an electric distribution box respectively; and an isolation inductor.
Abstract:
A housing assembly (200) for a battery module (1000) includes a plurality of brackets (1) disposed side by side in the front-rear direction and connected by a snap, and each two adjacent brackets (1) defining a space for receiving the battery (100); a plurality of copper bars (2) disposed vertically on the brackets (1) and having a through-hole adapted for extending an electrode of the battery; and a plurality of insulating frames (3) disposed on the copper bars (2) to cover the electrodes of the batteries; wherein the insulating frame (3) is connected with the bracket (1) by a snap and has an extension direction as same as that of the copper bar (2). A battery module including the housing assembly is also provided.
Abstract:
A power system of an electric vehicle, an electric vehicle comprising the same and a method for heating a battery group (101) of the electric vehicle are provided. The power system of the electric vehicle comprises a battery group (101), a battery heater (102) connected with the battery group (101), and a battery management device (103) connected with the battery group (101) and the battery heater (102) respectively. The battery management device (103) is configured to control the battery heater (102) to heat the battery group (101 ) intermittently when the temperature of the battery group (101) is lower than a first temperature threshold and a residual electric quantity of the battery group (101) is larger than an electric quantity threshold. The power system further comprises an electric distribution box (104), a motor (105), a motor controller (106) connected with the motor (105) and the electric distribution box (104) respectively, and an isolation inductor (L2).