Automobile air conditioning damper actuator

Abstract

The invention relates to an executing mechanism of a vehicle air conditioner ventilation door. The executing mechanism of the vehicle air conditioner ventilation door comprises a power source, a linkage and the ventilation door. The power source comprises a driving module, the driving module comprises an executive motor, and an output shaft of the executive motor is connected with a revolving shaft of the ventilation door through the linkage. The executing mechanism of the vehicle air conditioner ventilation door is characterized in that the executing mechanism of the vehicle air conditioner ventilation door further comprises a positioning module, the positioning module comprises an angle sensor, and the positioning module is arranged on the revolving shaft of the ventilation door. The positioning module is connected with a control unit of the executing mechanism, and the operation of the executive motor is controlled by the control unit of the executing mechanism through the driving module, and the driving module and the positioning module of the power source in a traditional executing mechanism of the ventilation door are separated. The positioning module is arranged on the revolving shaft of the ventilation door, a control panel of the executing mechanism obtains accurate turning angle of the ventilation door through the positioning module and then transforms the turning angle obtained to the turning angle of the output shaft of the executive motor, the positioning module is directly connected with the revolving shaft of the ventilation door, a linkage mechanism in an original design is removed, so that the connection of the positioning module and the revolving shaft is not influenced by a clearance of the linkage transmission , and thereby the turning angle of the ventilation door can be accurately controlled.

Description

technical field [0001] The invention relates to an automobile air-conditioning system, in particular to an automobile air-conditioning damper actuator. Background technique [0002] The damper actuators of existing automotive air-conditioning systems are basically realized through the method of "power source + connecting rod + damper". The power source drives the damper to rotate through the connecting rod. The power source includes a drive module and a positioning module. The motor and the positioning module include an angle sensor. When the damper actuator is working, the control panel of the actuator monitors and adjusts the rotation angle of the output shaft of the actuator in real time through the positioning module, thereby adjusting the rotation angle of the damper. [0003] But in the actual use process, since the air door needs to be driven by one or more stages of connecting rods, it will inevitably lead to the accumulation of the gap between each joint and the joi...

AI Technical Summary

Problems solved by technology

[0003] However, in the actual use process, since the air door needs to be driven by one or more stages of connecting rods, this will inevitably lead to the accumulation of the gap between each joint and the joint. On the one hand, it will cause the final rotation angle of the air door to be different from what we want Inconsistency, the round-trip stroke will be different due to the existence of accumulated clearance; on the other hand, multi-stage transmission, such as poor consistency of a transmission part in the middle, will cause the final damper rotation angle to be inconsistent with the design requirements

Images