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Aviation storage battery heating and self-checking protection circuit

A circuit and battery technology, applied in circuits, battery temperature control, batteries, etc., can solve the problems of poor heating circuit safety, waste of battery performance, and endangering flight safety.

Inactive Publication Date: 2018-02-23
CHINESE FLIGHT TEST ESTAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can make the battery basically meet the needs of use, there are problems of waste of battery performance and poor safety of the heating circuit, especially lithium-ion batteries, which will endanger flight safety once they burn

Method used

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  • Aviation storage battery heating and self-checking protection circuit
  • Aviation storage battery heating and self-checking protection circuit

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Embodiment Construction

[0024] The present invention will be further described according to accompanying drawing:

[0025] See the attached circuit diagram for details figure 1 . The circuit of the present invention includes: input power supply Ui, relay K1, protection device QF1, relay K2, temperature actuator St, voltage U1, heating belt R1, voltage U2, heating belt R2, resistance R3, voltage U3, resistance R4, voltage U4, Resistor R5, operational amplifier A1, operational amplifier A2, diode D1, diode D2, status signal U0 and module power supply DC / DC.

[0026] Function description:

[0027] Input self-locking circuit (1): including relay K1, protection device QF1 and relay K2, specific realization:

[0028] Relay K1: Realize on-off control of 28VDC power input;

[0029] Protection device QF1: a 0.5A-level circuit breaker, which can be manually switched on and off to realize the on-off of the negative terminal control line of the relay K1, and can be opened when there is overcurrent;

[0030]...

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PUM

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Abstract

The invention belongs to the related aviation storage battery power supply and distribution technologies, and discloses an aviation storage battery heating and self-checking protection circuit. The aviation storage battery heating and self-checking protection circuit adopts two heating tapes, can heat a storage battery evenly through coating the storage batter with the two heating tape, can keep constant temperature of the storage battery within a certain range of a design value, can monitoring failures such as open circuit, short circuit and heating belt damage grounding of a heating circuit,can realize adjustment of a protection range through configuration, does not affect the protection effect by fluctuations of an input voltage, can lock the heating line when a fault occurs, is saferand more reliable, and can be extended and applied to all resistance wire type heating circuits. The aviation storage battery heating and self-checking protection circuit realizes the heating of a settemperature value of the storage battery, can realize real-time monitoring of the heating circuit, and ensures the safety and reliability of the circuit.

Description

technical field [0001] The invention belongs to the technology related to power supply and distribution of aviation storage batteries, and relates to a heating and self-checking protection circuit for aviation storage batteries. Background technique [0002] As one of the most commonly used aircraft emergency power supplies at this stage, aviation batteries mainly include silver-zinc batteries, nickel-cadmium batteries and lithium-ion batteries. Each type has its own advantages and disadvantages and is suitable for different applications. Among them, low temperature resistance or poor low temperature performance is a common shortcoming. [0003] When the plane is at high altitude, the outside temperature can generally drop to more than minus 50 degrees, and the temperature in the equipment compartment can also drop to minus 30 or 40 degrees. In order to make the aviation battery can be used normally, measures such as derating design, heat insulation layer insulation, enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20H01M10/615H01M10/625H01M10/63H01M10/6571
CPCG05D23/20H01M10/615H01M10/625H01M10/63H01M10/6571H01M2220/20Y02E60/10
Inventor 赵振王真左向梅孙丹丹王双虎张波
Owner CHINESE FLIGHT TEST ESTAB
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