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Automatic recognition method for static pressure of air duct type air conditioning indoor machine and system thereof

A ducted air conditioner, automatic identification technology, applied in heating and ventilation control systems, heating and ventilation safety systems, heating methods, etc., can solve problems such as shrinking and affecting the normal operation of the unit, to achieve convenient installation design and improve stability The effect on performance and operating efficiency

Active Publication Date: 2009-12-16
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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AI Technical Summary

Problems solved by technology

Closing a certain air outlet is equivalent to increasing the static pressure of the air duct. Since the static pressure of the traditional air duct machine is fixed, the air volume of the air conditioner will definitely decrease at this time, which will affect the normal operation of the unit.

Method used

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  • Automatic recognition method for static pressure of air duct type air conditioning indoor machine and system thereof
  • Automatic recognition method for static pressure of air duct type air conditioning indoor machine and system thereof
  • Automatic recognition method for static pressure of air duct type air conditioning indoor machine and system thereof

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Embodiment Construction

[0034] In order to realize the automatic identification of the static pressure of the indoor unit of the ducted air conditioner and the adjustment of the static pressure on the engineering site, the present invention provides an automatic identification method and system for the static pressure of the indoor unit of the ducted air conditioner. Next, the automatic identification method and its system will be described in detail.

[0035] figure 1 It is a component structure diagram of the present invention. Such as figure 1 As shown, 1 is the return air outlet, 2 is the air outlet, 3 is the heat exchanger, 4 is the DC fan motor, 5 is the system control box, 6 is the Hall IC, 7 is the fan impeller, and 8 is the motor connection wire.

[0036] Different air ducts have different static pressures; different installation environments have different static pressures; different usage methods have different static pressures. This requires real-time judgment of whether the DC fan mot...

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Abstract

The invention discloses an automatic recognition method for static pressure of air duct type air conditioning indoor machine and a system thereof. The automatic recognition method comprises the following steps: obtaining the actual control voltage VSP and preset control voltage VSP and offset threshold value of VSP of a DC fan motor, and comparing the actual control voltage VSP and the preset control voltage VSP to judge whether the actual control voltage VSP and the preset control voltage VSP exceed the range of the threshold value; under the condition that the compared result exceeds the range of the threshold value, determining static pressure tap position corresponding to the rotary speed and further modifying a control parameter corresponding to the static pressure tap position by momentarily setting VSP value and detecting the rotary speed of a motor fan after a period of time; controlling a DC fan motor according to the control parameter. The invention does not distinguish high-low static pressure machine types any longer, which reduces more than 50% of types. Simultaneously, on-site installation and design becomes convenient, and the system stability is increased.

Description

technical field [0001] The invention relates to an automatic identification method and system for the static pressure of an air conditioner, in particular to an automatic identification method and system for the static pressure of an air duct type air conditioner indoor unit. Background technique [0002] When the ducted air conditioner indoor unit is installed on the project site, the installation environment is different, and there will be different static pressure requirements. [0003] The traditional air duct machine uses an AC asynchronous motor, and the appropriate static pressure specification must be selected according to the design of the air duct on the project site. Due to the lack of standardization in the installation and construction of domestic air conditioners, static pressure mismatches often occur, such as: a high static pressure air duct machine is connected to a low static pressure air duct. At this time, the temperature of the motor rises too fast, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
Inventor 何成军傅振宇邓玉平赵连池孟建军
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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