Compound emergency power supply apparatus used for low-temperature start of vehicle

A technology for emergency power supply and low temperature starting, which is applied to circuit devices, battery circuit devices, vehicle components, etc., can solve the problems of inability to start the emergency power supply at low temperature of vehicles, increase vehicle costs, etc., so as to avoid excessive discharge and prolong use. Longevity and effect of ensuring safety
CN106451718AInactive Publication Date: 2017-02-22HEBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2017-02-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a compound emergency power supply apparatus used for low-temperature start of a vehicle. The compound emergency power supply apparatus comprises a lithium ion battery pack, voltage reduction circuits, a supercapacitor group, a voltage boosting circuit, voltage reduction driving circuits, a voltage boosting driving circuit, a main control chip MCU, signal acquisition modules, a 24V voltage output port and a 5V USB voltage output port, wherein the output ends of the signal acquisition modules are all connected with the main control chip MCU; the main control chip MCU is connected with the voltage reduction driving circuits and the voltage boosting driving circuit separately; the voltage reduction driving circuits are connected with the corresponding voltage reduction circuits; the voltage boosting driving circuit is connected with the voltage boosting circuit; the output end of the lithium ion battery pack, the voltage reduction circuit of the supercapacitor group, the supercapacitor group and the input end of the voltage boosting circuit are connected in series in sequence; the voltage reduction circuits are connected with the 24V voltage output port and the 5V USB voltage output port respectively; the output end of the voltage boosting circuit is connected with a vehicle storage battery; and the signal acquisition modules are also connected with the lithium ion battery pack, the supercapacitor group and the vehicle storage battery respectively.
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Description

technical field

[0001] The invention relates to the field of composite emergency power supply, in particular to a composite emergency power supply device for low-temperature starting of vehicles. Background technique

[0002] When vehicles such as automobiles and tanks are used in high cold and low temperature environments, the discharge capacity of the vehicle battery is severely reduced due to the low temperature. When the vehicle is started, the battery power supply is insufficient and the number of ignitions is reduced, which may eventually cause the vehicle to fail to start normally. In order to start the vehicle, it is usually used to preheat the engine with a fire or pour hot water into the engine before starting. These methods are not only laborious and time-consuming, but also easy to cause fire if the operation is not done properly, which is very unsafe.

[0003] Supercapacitors have large capacity, long service life, can be quickly charged and discharged with larg...

Claims

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