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Power supply system for carrying out heating based on LC resonance and PTC resistance tape and vehicle

A technology of power supply system and resistance band, which is applied in the field of power supply system and vehicles with it, and can solve the problems of affecting battery life and complex circuit structure, etc.

Active Publication Date: 2017-02-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes the structure of the circuit complex, and the current waveform is non-standard sine wave, which has an impact on battery life

Method used

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  • Power supply system for carrying out heating based on LC resonance and PTC resistance tape and vehicle
  • Power supply system for carrying out heating based on LC resonance and PTC resistance tape and vehicle
  • Power supply system for carrying out heating based on LC resonance and PTC resistance tape and vehicle

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Embodiment Construction

[0067] Such as figure 1 As shown, the power supply system for heating based on LC resonance and PTC resistance band of the present invention consists of a DC power supply 4, a heating control system 6, a power electronic switch 5, a half bridge 3, an LC resonance unit 2, an electrical storage device 1, and a PTC resistance The belt 7 is composed; the DC power supply 4 is connected to the half bridge 3; the heating control system 6 obtains the status information of the power storage device 1, controls the power electronic switch 5 to be on and off, adjusts the resistance value of the PTC resistance belt 7, and determines The switching frequency of half-bridge 3; as figure 2 As shown in (a), the half bridge 3 includes an upper bridge arm 301 and a lower bridge arm 302, the upper and lower bridge arms can use IGBT or MOSFET power tubes, the negative pole of the power storage device 1 is connected to the lower bridge arm 301, and the positive pole is connected to the lower bridge...

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Abstract

The invention provides a power supply system for carrying out heating based on LC resonance and a PTC resistance tape and a vehicle. The power supply system comprises an LC resonance unit and the PTC resistance tape, wherein the LC resonance unit comprises a capacitor and an inductor; one end of the LC resonance unit is connected with one end of the PTC resistance tape; the other end of the LC resonance unit is connected between an upper bridge arm S1 and a lower bridge arm S2; the other end of the PTC resistance tape is connected with a positive electrode of a power storage device; a negative electrode of the power storage device is connected with the negative electrode of a DC power supply; energy flows among the DC power supply, the LC resonance unit and the power storage device in a reciprocating manner and generates sinusoidal AC; and the sinusoidal AC generates heat through an AC impedance real part of the power storage device to achieve internal heating and generates the heat through the PTC resistance tape to achieve external heating. Fast and efficient heating is achieved from the inside and / or outside of a battery by using the impedance characteristic of the power supply system under the excitation of the sinusoidal AC.

Description

[0001] This application is a divisional application of a Chinese patent application with the application number 201610592678.2, the application date is July 25, 2016, and the invention title is "A Method for Heating an Electricity Storage Device Based on LC Resonance and PTC Resistance Band". technical field [0002] The invention relates to a power supply system and a vehicle, in particular to a power supply system for heating based on LC resonance and a PTC resistance band and a vehicle with the same. Background technique [0003] With the gradual promotion of electric vehicles, the low-temperature performance of vehicle power batteries has attracted more and more attention. In an environment with low temperature in winter, the internal resistance of lithium-ion batteries rises sharply, the discharge capacity decreases significantly, and the high-current charging and discharging capabilities decrease, resulting in problems such as shortened driving range, poor power perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/637H01M10/615H01M10/625B60L11/18
CPCB60L50/50B60L58/27H01M10/615H01M10/625H01M10/637Y02E60/10Y02T10/70
Inventor 李军求孙逢春张承宁金鑫房林林
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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