Control device for delayed fan stopping after vehicle stalls

A control device, a technology after flameout, applied in the direction of pump control, mechanical equipment, vehicle components, etc., can solve the problems of increased dark current, greater impact on the battery, and power loss of the car battery, and achieve the effect of benefiting passengers

Inactive Publication Date: 2016-08-10
SHANGHAI FENGTIAN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, in the prior art, the fan control circuit is powered by KL30 (Battery) to delay turning off the fan, but this solution also brings the problem of increased dark current after shutdown; Electricity, which has a greater impact on the battery

Method used

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  • Control device for delayed fan stopping after vehicle stalls

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] combined with figure 1 , a kind of control device that fan delays to stop after the whole vehicle is turned off, it includes single-chip microcomputer MCU, power supply chip and blower fan control circuit; The described power supply chip is connected with automobile battery power supply (BAT Inpout), and the described power supply chip Connect with the single-chip MCU signal, and the power chip provides +5V power supply to the single-chip MCU at the same time; The ignition signal source (IGNInpout) of the car is connected to the power chip through a diode D3; The ignition signal source of the car passes through the resistor R28 and the resistor R30 in turn Grounding, a flameout detection node is provided between the resistor R28 and the resistor R30, the flameout detection node is connected to the signal input terminal of the single-chip MCU, and the f...

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Abstract

The invention provides a control device for delayed fan stopping after a vehicle stalls, and by the adoption of the control device, a fan can be stopped in a delayed mode after the vehicle stalls under the condition that dark currents are not increased. The control device comprises a single chip microcomputer MCU, a power chip and a fan control circuit. According to the control device, a power supply signal of the fan control circuit of an air conditioner controller is controlled and managed by a MCU chip; after the vehicle stalls, power can continue to be supplied through the power supply signal of the fan control circuit; and after a certain period of time is delayed, the power supply signal of the fan control circuit is turned off by the MCU, and thus a fan stopping function is achieved. In this way, on the premise that the quiescent currents are not increased, the fan can operate for delayed time period after the vehicle stalls, so that the effect that the surface of an evaporator in an air conditioner cabinet body is kept dry all year round is achieved, air blown out of an air conditioner system is clean and free of odor, and thus the health of passengers is facilitated.

Description

technical field [0001] The invention relates to a fan control device for an automobile, in particular to a control device for the fan to stop in a delayed manner after the vehicle is turned off. Background technique [0002] The automotive air conditioning system is a device that cools, heats, ventilates and purifies the air in the cabin. It can provide a comfortable riding environment for the passengers, reduce the driver's fatigue intensity and improve driving safety. The air conditioning unit has become one of the symbols to measure whether the car is fully functional. [0003] After using the car air conditioning system for a period of time, it often smells like mildew and smoke; when cooling or heating, the air blown out from the air outlet is not fresh, and people will feel the smell after staying in the car for a long time. Discomfort in the nasal cavity and trachea; these are all caused by the odor of the automobile air conditioner, so why does the automobile air c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00B60H1/00
CPCF04D27/00B60H1/00642
Inventor 尹振国倪孟雄彭雄飞
Owner SHANGHAI FENGTIAN ELECTRONICS
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