CN-122015270-A - Indoor micro positive and negative pressure control method, controller, air conditioning system and medium

Abstract

The application discloses a control method, a controller, an air conditioning system and a medium of indoor micro positive and negative pressure, wherein the method comprises the steps of obtaining indoor and outdoor pressure difference and outdoor air quality index, and determining the number of indoor pollution scenes; the method comprises the steps of carrying out micro-positive pressure control, micro-negative pressure control or zero pressure difference control on an indoor space according to the number of indoor pollution scenes and an outdoor air quality index, determining target positive pressure according to the outdoor air quality index under the micro-positive pressure control, adjusting the motor rotating speed of an exhaust fan according to the target positive pressure and the indoor and outdoor pressure differences, determining target negative pressure according to the number of indoor pollution scenes under the micro-negative pressure control, adjusting the motor rotating speed of the exhaust fan according to the target negative pressure and the indoor and outdoor pressure differences, and adjusting the motor rotating speed of the exhaust fan according to the indoor and outdoor pressure differences under the zero pressure difference control. The application intelligently controls indoor positive pressure and negative pressure according to the influence factors inside and outside the room so as to meet diversified use scenes and user requirements, and can be widely applied to the technical field of air conditioners.

Inventors

• WU CHENGSONG
• GU YANAN
• LEI MING

Assignees

• 广东恩博力电器有限公司
• 安徽恩博力电器有限公司

Dates

Publication Date

20260512

Application Date

20260128

Claims (10)

1. 1. The control method of indoor micro positive and negative pressure is characterized by being applied to an air conditioning system, wherein the air conditioning system comprises an exhaust fan, and the method comprises the following steps of: Acquiring indoor and outdoor pressure difference and outdoor air quality index, and determining the number of indoor pollution scenes; According to the number of indoor pollution scenes and the outdoor air quality index, performing micro-positive pressure control, micro-negative pressure control or zero pressure difference control on the indoor space; under the control of the micro positive pressure, determining a target positive pressure according to the outdoor air quality index, and further adjusting the motor rotating speed of the exhaust fan according to the target positive pressure and the indoor and outdoor pressure difference; Under the control of the micro negative pressure, determining target negative pressure according to the number of indoor pollution scenes, and further adjusting the motor rotating speed of the exhaust fan according to the target negative pressure and the indoor and outdoor pressure difference; and under the control of the zero pressure difference, the motor rotating speed of the exhaust fan is regulated according to the indoor and outdoor pressure difference.
2. 2. The method of claim 1, wherein the air conditioning system further comprises an indoor unit and an outdoor unit, the acquiring the indoor-outdoor pressure difference and the outdoor air quality index, and determining the number of indoor pollution scenes comprises: Acquiring the outdoor air quality index; Collecting indoor air pressure at the position of the indoor unit and outdoor air pressure at the position of the outdoor unit; obtaining an indoor side pressure according to the indoor air pressure, and determining the outdoor air pressure as an outdoor side pressure; Subtracting the indoor side pressure from the outdoor side pressure to obtain the indoor-outdoor pressure difference; monitoring indoor personnel conditions, and determining an indoor pollution scene according to the indoor personnel conditions; and counting the indoor pollution scenes to obtain the number of the indoor pollution scenes.
3. 3. The method according to claim 2, wherein said deriving the indoor side pressure from the indoor air pressure includes: If a wire controller is arranged in a room, acquiring the pressure of the wire controller at the position of the wire controller, further calculating the average value of the pressure of the wire controller and the indoor air pressure to obtain a first indoor pressure, and determining the first indoor pressure as the indoor side pressure; if an air portable sensor is arranged in the room, collecting sensor pressure of the position of the air portable sensor, further calculating the average value of the sensor pressure and the indoor air pressure to obtain second indoor pressure, and determining the second indoor pressure as the indoor side pressure; If a wire controller and an air portable sensor are arranged in the room, acquiring the pressure of the wire controller at the position of the wire controller and the pressure of the sensor at the position of the air portable sensor, further calculating the average value of the pressure of the wire controller, the pressure of the sensor and the indoor air pressure to obtain a third indoor pressure, and determining the third indoor pressure as the indoor side pressure; if the indoor is not provided with a wire controller and an air portable sensor, determining the indoor air pressure as the indoor side pressure.
4. 4. The method according to claim 1, wherein said performing micro positive pressure control, micro negative pressure control or zero pressure difference control on the indoor according to the number of indoor pollution scenes and the outdoor air quality index comprises: when the outdoor air quality index is larger than or equal to an air quality preset threshold value, performing micro-positive pressure control on the indoor; when the outdoor air quality index is smaller than an air quality preset threshold value, judging a numerical value corresponding to the number of the indoor pollution scenes; and if the number of the outdoor indoor pollution scenes is greater than zero, performing micro negative pressure control on the indoor space, and if the number of the indoor pollution scenes is equal to zero, performing zero pressure difference control on the indoor space.
5. 5. The method of claim 1, wherein the determining the target positive pressure according to the outdoor air quality index, and further adjusting the motor speed of the exhaust fan according to the target positive pressure and the indoor-outdoor pressure difference, comprises: According to the outdoor air quality index, calculating to obtain a weather coefficient; Calculating to obtain the target positive pressure according to the positive pressure default value and the weather coefficient; when the indoor and outdoor pressure difference is larger than the target positive pressure, calculating to obtain a first target rotating speed according to the current rotating speed of the exhaust fan, the target positive pressure and the indoor and outdoor pressure difference, and further increasing the rotating speed of the motor to the first target rotating speed; and when the indoor and outdoor pressure difference is smaller than the target positive pressure, calculating to obtain a second target rotating speed according to the current rotating speed of the exhaust fan, the target positive pressure and the indoor and outdoor pressure difference, and further reducing the rotating speed of the motor to the second target rotating speed.
6. 6. The method of claim 1, wherein the determining the target negative pressure according to the number of indoor pollution scenes, and further adjusting the motor speed of the exhaust fan according to the target negative pressure and the indoor-outdoor pressure difference, comprises: determining a pressure correction unit value; Calculating to obtain the target negative pressure according to a negative pressure default value, the number of indoor pollution scenes and the pressure correction unit value; when the indoor and outdoor pressure difference is larger than the negative value of the target negative pressure, calculating to obtain a third target rotating speed according to the current rotating speed of the exhaust fan, the target negative pressure and the indoor and outdoor pressure difference, and further increasing the rotating speed of the motor to the third target rotating speed; and when the indoor and outdoor pressure difference is smaller than the negative value of the target negative pressure, calculating to obtain a fourth target rotating speed according to the current rotating speed of the exhaust fan, the target negative pressure and the indoor and outdoor pressure difference, and further reducing the rotating speed of the motor to the fourth target rotating speed.
7. 7. The method of claim 2, wherein adjusting the motor speed of the exhaust fan according to the indoor-outdoor pressure difference comprises: when the indoor and outdoor pressure difference is smaller than zero, calculating a fifth target rotating speed according to the current rotating speed of the exhaust fan, the indoor and outdoor pressure difference and the outdoor side pressure, and further reducing the rotating speed of the motor to the fifth target rotating speed; and when the indoor and outdoor pressure difference is larger than zero, calculating to obtain a sixth target rotating speed according to the current rotating speed of the exhaust fan, the indoor and outdoor pressure difference and the indoor side pressure, and further increasing the rotating speed of the motor to the sixth target rotating speed.
8. 8. A controller for a vehicle, which is configured to control a controller, characterized by comprising the following steps: At least one processor; at least one memory for storing at least one program; the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method of any one of claims 1 to 7.
9. 9. An air conditioning system comprising the controller of claim 8.
10. 10. A computer readable storage medium, in which a processor executable program is stored, characterized in that the processor executable program when executed by a processor implements the method according to any of claims 1 to 7.

Description

Indoor micro positive and negative pressure control method, controller, air conditioning system and medium Technical Field The application relates to the technical field of air conditioners, in particular to a control method, a controller, an air conditioning system and a medium for indoor micro positive and negative pressure. Background In the existing heat recovery type new fan application scene, a plurality of problems affecting the indoor environment and the operation effect of equipment exist. The existing heat recovery type fresh air ventilator cannot flexibly control indoor negative pressure or positive pressure according to the influence factors of the inside and outside of an actual room, and diversified use scenes and user requirements are difficult to meet. Disclosure of Invention The embodiment of the application mainly aims to provide a control method, a controller, an air conditioning system and a medium for indoor micro positive and negative pressure, which can intelligently control indoor positive pressure and negative pressure according to indoor and outdoor influence factors so as to meet diversified use scenes and user requirements. In order to achieve the above object, an aspect of the embodiments of the present application provides a method for controlling indoor micro positive and negative pressure, which is applied to an air conditioning system, wherein the air conditioning system includes an exhaust fan, and the method includes the following steps: Acquiring indoor and outdoor pressure difference and outdoor air quality index, and determining the number of indoor pollution scenes; According to the number of indoor pollution scenes and the outdoor air quality index, performing micro-positive pressure control, micro-negative pressure control or zero pressure difference control on the indoor space; under the control of the micro positive pressure, determining a target positive pressure according to the outdoor air quality index, and further adjusting the motor rotating speed of the exhaust fan according to the target positive pressure and the indoor and outdoor pressure difference; Under the control of the micro negative pressure, determining target negative pressure according to the number of indoor pollution scenes, and further adjusting the motor rotating speed of the exhaust fan according to the target negative pressure and the indoor and outdoor pressure difference; and under the control of the zero pressure difference, the motor rotating speed of the exhaust fan is regulated according to the indoor and outdoor pressure difference. In some embodiments, the air conditioning system further includes an indoor unit and an outdoor unit, the acquiring the indoor and outdoor pressure difference and the outdoor air quality index, and determining the number of indoor pollution scenes includes: Acquiring the outdoor air quality index; Collecting indoor air pressure at the position of the indoor unit and outdoor air pressure at the position of the outdoor unit; obtaining an indoor side pressure according to the indoor air pressure, and determining the outdoor air pressure as an outdoor side pressure; Subtracting the indoor side pressure from the outdoor side pressure to obtain the indoor-outdoor pressure difference; monitoring indoor personnel conditions, and determining an indoor pollution scene according to the indoor personnel conditions; and counting the indoor pollution scenes to obtain the number of the indoor pollution scenes. In some embodiments, the obtaining the indoor side pressure according to the indoor air pressure includes: If a wire controller is arranged in a room, acquiring the pressure of the wire controller at the position of the wire controller, further calculating the average value of the pressure of the wire controller and the indoor air pressure to obtain a first indoor pressure, and determining the first indoor pressure as the indoor side pressure; if an air portable sensor is arranged in the room, collecting sensor pressure of the position of the air portable sensor, further calculating the average value of the sensor pressure and the indoor air pressure to obtain second indoor pressure, and determining the second indoor pressure as the indoor side pressure; If a wire controller and an air portable sensor are arranged in the room, acquiring the pressure of the wire controller at the position of the wire controller and the pressure of the sensor at the position of the air portable sensor, further calculating the average value of the pressure of the wire controller, the pressure of the sensor and the indoor air pressure to obtain a third indoor pressure, and determining the third indoor pressure as the indoor side pressure; if the indoor is not provided with a wire controller and an air portable sensor, determining the indoor air pressure as the indoor side pressure. In some embodiments, the performing micro positive pressure control, micro negative pressure control or