Overheat protection technology for storage battery case of electric vehicle

A technology for overheating protection and electric vehicles, applied in battery circuit devices, secondary battery charging/discharging, secondary battery repair/maintenance, etc., can solve problems such as low reliability, single protection function, and unstable reliability, and achieve The effect of avoiding accidents

Inactive Publication Date: 2014-09-17
李文忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The patent "An Overheat Protector for Electric Vehicle Batteries" is an invention about the structure of thermal protection components, not a complete protection solution; it uses heat-sensitive metal to make a temperature control switch in the battery box. When the temperature of the control switch in the battery box reaches a certain value, the electrical circuit of the battery can be disconnected, and the battery can neither be charged nor used for electricity. The use of the car; but the temperature in the battery box is different from the temperature of the battery, especially the temperature of each battery, which cannot better protect each battery
[0012] The patent of "Electric Vehicle Charging Circuit to Prevent Battery Overheating" is to place a temperature sensor in the battery box and add a wire to control the working state of the charger for charging protection. Transformation, high equipment cost and single protection function, and low reliability

Method used

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  • Overheat protection technology for storage battery case of electric vehicle
  • Overheat protection technology for storage battery case of electric vehicle
  • Overheat protection technology for storage battery case of electric vehicle

Examples

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Embodiment Construction

[0023] As shown in the figure, to modify or redesign the existing electric vehicle battery box, it is necessary to add a low-temperature temperature control switch (001), a high-temperature temperature control switch (002), and a diode (004) to the existing battery electrical circuit. and other electrical components.

[0024] The low temperature temperature control switch (001) and the high temperature temperature control switch (002) can use the same type of normally closed KSD301 temperature control switch; KSD301 uses a disc-shaped element made of a thermal bimetal as a temperature sensing element. The principle of instant jumping under the action of temperature makes the contacts move quickly, causing the external temperature control switch lead 1 (007) and temperature control switch lead 2 (008) to be connected or disconnected, so as to achieve the purpose of controlling the circuit switch; KSD301 A series of action temperature products can be provided in the range of 0~2...

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PUM

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Abstract

The invention discloses an overheat protection technology for a storage battery case of an electric vehicle. Low-temperature thermostat switches (001), high-temperature thermostat switches (002), a storage battery (003), a diode (004) and the like are involved, wherein the low-temperature thermostat switches (001) are connected in parallel with the diode (004) to form a low-temperature thermostat module which is connected in series with the high-temperature thermostat switches (002) and the storage battery (003); the low-temperature thermostat module is used for protecting the storage battery (003) from being damaged by overheat in a charging process; the high-temperature thermostat switches (002) are used for preventing an electric vehicle failure and even a fire accident caused by instantaneous overheat, due to line short-circuit, of a wire or the storage battery (003).

Description

technical field [0001] The invention relates to an overheating protection technology for a battery box of an electric vehicle, which belongs to the technical field of thermal protection, especially for an electric vehicle using a storage battery, and is also applicable to the overheating protection of the electric vehicle. Background technique [0002] Electric vehicles generally refer to electric mopeds or electric bicycles. Due to their low price and low operating costs, electric vehicles are very popular among ordinary working families. They have a high penetration rate in plain areas and have become the main means of transportation for people. [0003] The biggest problem with electric vehicles is the battery, which generally needs to be replaced every one to two years, which is the largest part of the cost of using an electric vehicle. The majority of electric vehicle users are very concerned about the battery. [0004] The charging of the battery is a very important th...

Claims

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Application Information

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IPC IPC(8): H01M10/44H01M10/42H01M10/613H01M10/625H01M10/635
CPCH01M10/4257H01M10/4285H01M2010/4271H01M2200/10H01M2200/30H01M50/581H01M50/597Y02E60/10
Inventor 李文忠
Owner 李文忠
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