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Equipment for heating and charging chargeable battery under low-temperature

A rechargeable and equipment technology, which is applied in the field of equipment for heating and charging rechargeable batteries at low temperatures, and can solve problems such as unusable charging devices

Inactive Publication Date: 2005-06-22
BENQ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, conventionally used charging devices cannot be used in unusually cold conditions, such as outdoors at snowy nights.

Method used

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  • Equipment for heating and charging chargeable battery under low-temperature
  • Equipment for heating and charging chargeable battery under low-temperature

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Embodiment Construction

[0012] figure 2 A block diagram showing the battery charging device 202 of the present invention. The battery charging device 202 is used for heating and charging a rechargeable battery 207 at low temperature, and includes a charging device 203, a heating device 213, a first switch S1, and a protection device 209, wherein the charging device 203 is coupled to Connected to a voltage source 201 , wherein the charging device 203 has a temperature detection device 205 and a charging control circuit 204 , and wherein the protection device 209 has a second switch S2 and a voltage detection device 211 .

[0013] The rechargeable battery 207 is coupled to the charging device 203 . The charging device 203 has a temperature detection device 205 and a charging control circuit 204 . The above-mentioned temperature detection device 205 detects an ambient temperature, and if the detected temperature falls within an appropriate predetermined temperature range (0°C to 45°C), the above-ment...

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Abstract

A rechargeable type cell heating and charging equipment at low temperature contains a charger, a heater, a first switch and a protector. When temperature is too low for example below zero degree centigrade, the said first switch is in on state, the heater generates heat energy by receiving voltage from first switch and raises the environment temperature. When the rechargeable cell is recharged to maximum capacity (85-100 % of rated cell capacity), the protector makes the heater stop receiving voltage to save the energy source.

Description

technical field [0001] The invention relates to a battery charging device, in particular to a device for heating and charging a rechargeable battery at low temperature. Background technique [0002] Rechargeable batteries are used in various electronic devices, including portable computers, peripheral products of portable computers, personal digital assistants (PDAs), mobile phones, cameras, and so on. Due to their widespread use, various rechargeable batteries have been developed with different chemistries, each with its own advantages and disadvantages. Among them, the most commonly used rechargeable batteries are nickel-cadmium batteries (NiCad), nickel-metal hydride batteries (NiMH), lithium batteries (Li-ion) and lithium polymer batteries (Li-polymer). [0003] In recent years, lithium batteries (Li-ion) have become the first choice for rechargeable batteries, mainly used in portable computers. The internal chemical composition of a lithium battery (Li-ion) includes: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00
CPCY02E60/10
Inventor 郭擎志许英豪
Owner BENQ CORP
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