Air conditioning box temperature linearity test equipment

Abstract

The invention discloses a temperature linearity testing device for an air-conditioning box, which comprises a microprocessor; a power supply module; an open-loop servo motor drive module, a feedback servo motor single drive module and a stepping motor single drive module, all of which are connected to the microprocessor It is also used to send control signals to the actuators of the mode damper or the fresh air damper; the feedback servo motor double drive module and the stepper motor double drive module are connected to the microprocessor and used to send the single temperature zone temperature damper or the double temperature zone temperature damper The control signal is sent by the actuator; the feedback voltage input module of the left temperature damper actuator, the feedback voltage input module of the right temperature damper actuator, the feedback voltage input module of the mode damper or fresh air damper actuator, are all used to output feedback to the microprocessor voltage signal. The air-conditioning box temperature linearity test equipment can not only meet the control requirements of the air-conditioning box air door, but also realize one machine with multiple functions, better versatility, and effectively shorten the development cycle of the air-conditioning box.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning box linearity test, and in particular relates to an air-conditioning box temperature linearity testing device for controlling the action of the air-conditioning box during the process of the air-conditioning box linearity test. Background technique [0002] During the linear test of the air-conditioning box, it is necessary to control the opening of each air door in the air-conditioning box and monitor the position of the air door to complete the linear test of the air-conditioning box under different working conditions. Existing testing devices mainly contain the following two types. [0003] 1. Use the external power supply electric control box to drive the action of the air conditioning box, and control the operation of the actuator of the air conditioning box through a simple jog switch to change the angle of the damper. At the same time, use a voltmeter to monitor the feedback voltag...

AI Technical Summary

Problems solved by technology

[0004] 1) The electronic control is an open-loop control, the corresponding speed is slow, and the temperature damper is difficult to position accurately, resulting in difficult operation and long test time, which seriously affects the development progress;

[0005] 2) The interactive interface of the drone can only be attached with a voltmeter to monitor the throttle position feedback voltage;

[0006] 3) Multiple damper actuators in the air conditioning box can only be wired and controlled separately, and cannot be operated at the same time, and the efficiency is extremely low;

[0007] 4) The output plug is not compatible with the actuator of the air conditioning box, and the temporary wiring on site is cumbersome, easy to fall off or short circuit, and has poor reliability;

[0008] 5) The output interface has no short-circuit protection function, and it is easy to damage the equipment when the experimenter makes a wrong connection

[0009] 2. Use the air conditioning control panel to control the operation of the actuator, only the control panel matching the air conditioning box can be used

[0010] 1) In the early stage of the development of the air-conditioning box, the development of the air-conditioning control panel has just begun, which made the linearity test impossible and seriously affected the development progress;

[0011] 2) There is no damper feedback voltage or angle display interface, only a voltmeter can be attached to monitor the feedback voltage corresponding to the damper position;

[0012] 3) It can only be tested with its matching air-conditioning box, and it needs to be specially written into the linear test software, which has poor versatility;

[0013] 4) The output plug is not compatible with the actuator of the air conditioning box, and the temporary wiring on site is cumbersome, easy to fall off or short circuit, and has poor reliability;

[0014] 5) The output interface has no short-circuit protection function, and it is easy to damage the equipment when the experimenter makes a wrong connection

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