Abstract:
A power battery assembly (1) comprises a battery circuit and a circuit protecting unit (100). The circuit protecting unit (100) is connected in series with the battery unit. The circuit protecting unit (100) comprises a relay (2) and a current sensing unit (3) connected in series with the battery circuit, a switching unit (5) connected with the relay (2) for controlling the switching of the relay (2), and a controller (4) connected with the switching unit (5) and the current sensing unit (3)to control the switching on or switching off the switching unit (5) based on comparison of the current value detected by the current sensing unit (3) and sent to the controller (4) with a first predetermined current value. An electric vehicle is also provided.
Abstract:
An electricity supply system is provided. The electricity supply system comprises: a battery module (1), comprising at least two in-series modules (11), each in-series module (11) comprising at least two battery groups connected in series; a control module (2) connected with the battery module (1), comprising: an IGBT module (23), a relay module (22) comprising a plurality of relays K, in which each in-series module (11) is connected to the relay module (22), and the relay module (22) is connected to the IGBT module (23), a relay control module (21) configured for controlling an ON or OFF of each relay K so as to select one or more in-series modules (11 ) to work with the IGBT module (23); and a distribution box (3) connected with the control module (2). The electricity supply system may realize heating battery groups in batches and equilibrium of voltage between battery groups.
Abstract:
A connector between battery modules and a battery system comprising the same are provided. The connector between battery modules comprises: first and second connecting pieces (21, 22), the first connecting piece (21) being electrically connected to an output end of a first battery module, the second connecting piece (22) being electrically connected to an output end of a second battery module adjacent to the first battery module, and the first connecting piece (21) and the second connecting piece (22) being electrically connected to each other so as to form an electrically-connecting part therebetween; a clamping unit configured to clamp the electrically-connecting part; and a support (5), the clamping unit being fixed onto the support (5) so as to support the electrically-connecting part between the first connecting piece (21) and the second connecting piece (22).
Abstract:
A battery and a battery cover assembly thereof are provided. The battery cover assembly comprises a cover (1) having a through hole; an extraction electrode terminal (3); and an insulating seal member disposed between the cover and the extraction electrode terminal. The extraction electrode terminal (3), starting from its top, includes a columnar seal part (31), a position part (32) and a weld part (33) that are consecutively connected together, the columnar seal part (31) passing through the through hole of the cover and having a seal groove formed along a circumferential surface thereof, the position part having a horizontally-oriented platform, and the weld part having a sheet-like shape and being perpendicular to the horizontally-oriented platform of the position part.
Abstract:
A battery explosion-proof device (100) and a battery pack (200) may be provided. The battery explosion-proof device (100) may comprise a valve body (1), a rupture plate (2) and a protecting cover (3). The valve body (1) may comprise a base portion (11) and a shaft portion (12) connected with the base portion (11). The shaft portion (12) may be formed with threads on an external circumferential surface thereof and with a venting passage (121). The rupture plate (2) may be disposed inside the concaved portion (111) for sealing the venting passage (121). And the protecting cover (3) may be configured to cover the concaved portion (111).
Abstract:
A battery explosion-proof device battery explosion-proof device includes a valve body, a rupture plate, and a protecting cover. The valve body includes a base portion and a shaft portion connected with the base portion. The shaft portion may be formed with threads on an external circumferential surface thereof and with a venting passage. The rupture plate may be disposed inside a concaved portion of the base portion for sealing the venting passage. The protecting cover covers the concaved portion.
Abstract:
Disclosed are a battery terminal (110), a battery cover plate assembly (100), a battery (10) and a battery pack. The battery terminal comprises: outer terminal segment (111) made of a first conductive material; an inner terminal segment (112) made of a second conductive material different from the first conductive material and having an upper end connected to a lower end of the outer terminal segment (111) so as to form a connection portion between the upper end of the inner terminal segment (112) and the lower end of the outer terminal segment (111); and a protection member (113) around the connection portion. With the battery terminal (110) according to an embodiment of the present invention, adjacent batteries can be connected together more reliably.
Abstract:
An explosion-proof device for a battery comprises: a vent formed in a battery shell of the battery; a valve core movably disposed in the vent to seal and open the vent; a support mounted on an outer wall of the battery shell; and an elastic element. One end of the elastic element is connected to the support and another end of the elastic element is connected to the valve core so as to normally push the valve core to seal the vent. Each of a power battery and a power battery module includes the explosion-proof device.