Air volume control system, device and method of range hood
An air volume control system and air volume control technology, applied in the direction of oil fume removal, heating methods, lighting and heating equipment, etc., can solve the problems of high power consumption of range hoods
Active Publication Date: 2021-05-18
QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD +1
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Problems solved by technology
[0004] Embodiments of the present invention provide a range hood air volume control system and its device and method to solve the problem of high power consumption of range hoods
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[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described through implementation with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some, but not all, embodiments. All other embodiments obtained by those skilled in the art based on the basic concepts disclosed and suggested by the embodiments of the present invention belong to the protection scope of the present invention.
[0034] refer to figure 1 As shown, is a schematic diagram of the first air volume control system for range hoods provided by the embodiment of the present invention. refer to figure 2 As shown in FIG. 2 , it is a schematic diagram of a second air volume control system for range hoods provided by an embodiment of the present invention. The air volume...
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The embodiment of the invention discloses an air volume control system, device and method of a range hood. The system comprises a single-phase alternating current motor and an air volume control device which are electrically connected; according to the air volume control device, the output end of a rectifying circuit is electrically connected with a single-phase alternating current motor through a switching circuit, a current sampling circuit is further electrically connected between the rectifying circuit and the single-phase alternating current motor, and a constant air volume control circuit is electrically connected with the current sampling circuit and the switching circuit; the constant-air-volume control circuit receives the constant-air-volume control instruction, collects an actual motor current signal through the current sampling circuit, and controls the on-off of the switching circuit according to the constant-air-volume control instruction and the actual motor current signal; and the switching circuit converts the pulsating direct current output by the rectifying circuit into sine wave alternating current with adjustable voltage, so that the single-phase alternating current motor is subjected to stepless speed regulation. According to the embodiment of the invention, the power factor value of the whole system is very high, the power utilization benefit is improved, and the power consumption is reduced.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of range hoods, and in particular to an air volume control system for range hoods and a device and method thereof. Background technique [0002] The range hood is installed on the top or side of the stove. The operation process of the existing range hood is that the hood rotates at high speed to form a negative pressure area in a certain space above the stove, and the indoor fume gas is sucked into the range hood, and the fume gas is purified and separated into Oil droplets and smoke, the oil droplets are collected into the oil cup, and the smoke is discharged along the flue. [0003] During the actual use of the existing range hood, the power factor value of the range hood system is very low, resulting in high power consumption. Contents of the invention [0004] Embodiments of the present invention provide an air volume control system for a range hood and its device and method, so ...
Claims
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IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 孟永哲刘喜王岩
Owner QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD