Shakeproof and dampproof dynamic battery unit

Abstract

The invention relates to a shock-resistant and damp-proof power battery set which comprises an outer shell (1), a plurality of cells (2) arranged inside the outer shell (1) and a charging / discharging protection circuit board (3) in electric connection with the plurality of cells (2), wherein a support structure (5) constraining the positions of the plurality of cells (2) axially and radically is fixed in the outer shell (1), the plurality of cells (2) constrained in the support structure (5) are arranged with a clearance in between. The cells in the battery set can be positioned reliably to keep a sound electric contact, has very good shock-resistant performance and heat dispersion performance and is very suitable to be used on various power battery sets in shaking circumstances.

Description

technical field [0001] The invention relates to a rechargeable power supply device, in particular to a lithium ion battery pack for providing vehicle power supply. Background technique [0002] Existing rechargeable power sources, such as power batteries used in electric bicycles, generally use multiple cells connected in parallel or in series to expand the capacity of the battery and increase the voltage of the battery. Some of the batteries are directly placed in the battery box. This installation method lacks the necessary fixing of the batteries, making the electrical contact of the batteries unreliable. External vibrations can easily affect the state of the batteries. The working stability is very poor in a vibrating environment; some cells are tightly fixed together. Although this method solves the problem of shock resistance of the battery to a certain extent, but the multiple cells are squeezed together, which is not conducive to battery life. The heat dissipation w...

AI Technical Summary

Problems solved by technology

Some of the batteries are directly placed in the battery box. This installation method lacks the necessary fixing of the batteries, making the electrical contact of the batteries unreliable. External vibrations can easily affect the state of the batteries. The working stability is very poor in a vibrating environment; some cells are tightly fixed together. Although this method solves the problem of shock resistance of the battery to a certain extent, but the multiple cells are squeezed together, which is not conducive to battery life. The heat dissipation when the core is working also affects the working stability of the battery

In addition, most of the casings of existing power batteries are composed of a top casing and a bottom casing. The connection between the two is either a snap-fit ​​structure, or the two are fixed by screws. The waterproof effects of the above two connection methods of the casing are both Relatively poor, when used in a humid or rainy environment, the circuit board inside the battery can easily fail to work or short circuit due to moisture, and even damage the battery

Images