Battery box

A battery box and battery pack technology, which is applied to secondary batteries, battery pack components, circuits, etc., can solve the problems of battery failure, battery box insulation and heat dissipation cannot be guaranteed, etc., to achieve the best heat insulation effect and heat dissipation. Good effect, the effect of increasing diversity

Pending Publication Date: 2017-06-20
中昱博软件系统(南京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This battery box uses a fan to seal the air between the battery cell and the casing, and conducts heat out through the casing to achieve the function of heat dissipation. At the same time, the enclosed space can also achieve the function of heat preservation, but this method of heat preservation and heat dissipation is easy to use. The battery fails under extremely low or extremely high temperature conditions, so that the heat preservation and heat dissipation of the battery box cannot be guaranteed. In view of this, it is urgent to develop a battery box with better heat preservation and heat dissipation functions under extreme weather conditions

Method used

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Effect test

Embodiment 1

[0029] see figure 1 , figure 2 , image 3 with Figure 4 As shown, they are a partial exploded view of the battery box of the present invention, a sectional front view of the battery box, a control circuit diagram of the controller, and a temperature control block diagram when the main heater is heated.

[0030] combine figure 1 with figure 2 As shown, a battery box includes a casing 1 ; a main heater 2 ; a controller 3 ; a battery pack 4 immersed in a phase change material 5 .

[0031] combine image 3 with Figure 4 As shown, the controller 3 obtains the ambient temperature outside the casing 1 through the first temperature sensor 31, obtains the temperature of the main heater 2 through the second temperature sensor 32, and obtains the temperature of the main heater 2 through the built-in A / D The analog-to-digital conversion circuit 33 collects the voltage signal of the battery pack 4 and converts it into a digital voltage value. When the temperature value detected ...

Embodiment 2

[0037] As above-mentioned a kind of battery case, the difference of this embodiment is that, as Figure 4As shown, when the temperature value detected by the first temperature sensor 31 is between the preset first temperature range or the temperature value detected by the second temperature sensor 32 is between the preset second temperature range or the When the voltage value detected by the A / D analog-to-digital conversion circuit 33 is within the preset first voltage range, the controller 3 controls the main heater 2 to maintain the original state.

[0038] When the temperature value detected by the first temperature sensor 31 is greater than the preset first temperature range or the temperature value detected by the second temperature sensor 32 is greater than the preset second temperature range or the A / D modulus When the voltage value detected by the conversion circuit 33 is lower than the preset first voltage range, the controller 3 controls the main heater 2 to stop wor...

Embodiment 3

[0042] As above-mentioned a kind of battery case, the difference of this embodiment is that, as Image 6 As shown, it is a schematic diagram of the structure of the battery pack, combined with Figure 5 and Image 6 As shown, a battery box also includes an auxiliary heater 6, which is connected to the controller 3, and the controller 3 obtains the temperature of the battery pack 4 through a third temperature sensor 34. When the third temperature sensor 34 When the detected temperature value is less than the preset third temperature range and at the same time the voltage value detected by the A / D analog-to-digital conversion circuit 33 is greater than the preset second voltage range, the controller 3 starts the auxiliary The heater 6 works so that it directly heats the battery pack 4 . In this embodiment, preferably, the auxiliary heater is arranged inside the battery pack 4, which is beneficial for the auxiliary heater 6 to directly heat it.

[0043] When the temperature va...

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Abstract

The invention provides a battery box which comprises a shell which is internally provided with a battery pack and is a double-layer shell; a plurality of channels which are mutually communicated with one another are arranged between an inner layer and an outer layer; the shell is provided with at least two valves which are communicated with the channels; the circulation direction of at least one valve is arranged inwards; and the circulation direction of at least one valve is arranged outwards. The battery box has the beneficial effects that by arranging the channels to be connected with the valves, external air and the channels form air flow channels, redundant heat is brought away by air circulation to have the cooling action; and in a valve closing state, the action of thermal insulation is realized.

Description

technical field [0001] The invention relates to a battery box, in particular to a battery box with functions of heat preservation and heat dissipation. Background technique [0002] Lithium-ion batteries are widely used in electric vehicles, robots, power tools and other applications that require high current due to their high energy density, high cycle life, high current charge and discharge characteristics, and no pollution. However, in the process of actual field operation, due to the great correlation between the electrochemical reaction of the electrode / electrolyte interface of lithium ions and the temperature, there is a great difference in the discharge output power under high and low temperature conditions, which limits the The application of lithium batteries under harsh conditions; on the other hand, too high or too low temperature will also have a great impact on the operation safety of lithium batteries. [0003] When the temperature is lower than 0 degrees, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/6556H01M10/6567H01M50/249
CPCH01M10/613H01M10/625H01M10/6556H01M10/6567H01M50/20Y02E60/10
Inventor 余大强胡宝兴
Owner 中昱博软件系统(南京)有限公司
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