Battery pack

Abstract

The invention relates to the field of power batteries for automobiles, in particular to a battery pack which comprises a battery pack shell, more than two battery sets and a battery set support. The battery sets and the battery set support are arranged in the battery pack shell, the battery pack shell is further provided with a temperature control device, each battery pack comprises a first binding post, a second binding post, single batteries and safety nickel strips, each first binding post and the corresponding second binding post are arranged at two ends of the corresponding battery set, switchover rods and switchover blocks are arranged among the adjacent battery sets, and wiring terminals which are connected with the battery sets are arranged in the battery pack shell; the temperature control device comprises temperature sensors, an induced air cavity and an air outlet cavity, the temperature sensors are arranged in the battery pack shell, the induced air cavity and the air outlet cavity are arranged between the battery set support and the battery pack shell, an air inlet which is connected with the induced air cavity is formed in the induced air cavity, an exhaust port is arranged on the air outlet cavity, the battery set support is provided with heater plates which are clamped among the battery sets, and ventilation openings are formed in the battery set support.

Description

technical field [0001] The invention relates to the field of automotive power batteries, in particular to a battery pack. Background technique [0002] As a new energy vehicle, electric vehicles have been widely promoted at present, and lithium-ion batteries have the advantages of small size, light weight, and no pollution to the environment, so battery packs composed of lithium-ion batteries are widely used in electric vehicle power batteries . For power batteries for electric vehicles, power batteries must meet the four requirements of high specific energy, high specific power, long life, and high safety, as well as the requirements for battery packs, so as to meet the needs of contemporary consumers for power vehicles. [0003] At present, cars usually use battery packs with designed rated voltages to assemble them in the car. However, different types of cars require different output voltages. As a result, the production of battery packs needs to be composed of battery p...

AI Technical Summary

Problems solved by technology

In addition, the current vehicle power battery may be short-circuited due to various factors during use, causing the battery pack to burn out. Since the batteries in the battery pack are connected together, when a short circuit occurs in one place, the excessive current May cause damage to the entire battery pack, making the battery pack poor in safety and economy

Moreover, the number of cycles of the battery is not only related to manufacturing factors, but also inseparable from the environment in which the battery is used.

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