A method and device for detecting temperature change in the environment where a battery is located
A technology of battery temperature and temperature change, applied in measuring devices, using electrical devices, thermometers using electrical/magnetic components directly sensitive to heat, etc.
Active Publication Date: 2019-04-30
HUIZHOU TCL MOBILE COMM CO LTD
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Problems solved by technology
[0023] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a method and device for detecting temperature changes in the environment where the battery is located, so as to solve the problem of when the ambient temperature jumps or changes drastically when the existing battery temperature is detected. , due to the slow change of the resistance of the thermistor, the problem that it cannot be detected in time
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[0051] The present invention provides a temperature change detection method and device for the environment in which the battery is located, so that the mobile terminal can quickly detect the jump or drastic change of the ambient temperature, and respond as soon as possible to prevent extreme temperatures (overheating or undercooling) Using the mobile terminal for a long time will damage the battery. In order to make the objectives, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0052] see figure 2 , the temperature change detection method of the environment where the battery is located provided by the present invention includes:
[0053] S100, obtain the battery ...
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The invention discloses a temperature change detection method for the environment of a battery and a temperature change detection device thereof. The temperature change detection method comprises the steps that A. battery temperature is acquired in real time and the battery temperature charge rate is calculated; and B. when the battery temperature charge rate is judged to be greater than a threshold, a preset temperature corresponding matrix is inquired according to the current battery temperature and the battery temperature charge rate and the current environment temperature is acquired so that the accurate environment temperature can be immediately acquired when the environment temperature jumps or sharply changes, and the problems that an existing mobile terminal adopts a temperature-sensitive resistor to detect temperature and the change of the resistance value of the temperature-sensitive resistor is slow and cannot be timely detected can be solved.
Description
technical field [0001] The invention relates to the technical field of batteries, and in particular, to a method and a device for detecting temperature changes in the environment where the battery is located. Background technique [0002] The battery temperature is an important parameter of the battery. In the prior art, the mobile terminal detects the battery temperature in real time. Once it is found that the temperature exceeds the normal range, it will protect (usually shut down) to avoid extreme temperatures (overheating or overcooling). damage to the battery caused by the use of the mobile terminal. [0003] In the prior art, such as figure 1 As shown, a battery temperature pin T is set on the battery; inside the battery, a thermistor Rb is connected in series between the battery temperature pin T and the negative electrode B- of the battery. The resistance value of the thermistor Rb changes as the temperature of the environment where the mobile terminal is located c...
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IPC IPC(8): G01K7/22
CPCG01K7/22
Inventor 俞斌杨维琴
Owner HUIZHOU TCL MOBILE COMM CO LTD