Air blower for air conditioner

A technology for air supply and air conditioners, applied in pump devices, electromechanical devices, machines/engines, etc., can solve the problems of small suction area, abnormal noise, narrow stable area, etc., so as to improve air supply efficiency and increase air supply volume. , the effect of reducing noise

Inactive Publication Date: 2007-06-27
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0010] However, when the outdoor unit for air conditioners with the front suction and discharge system is compared with the outdoor unit for air conditioners with the three-sided suction and discharge system, the air intake efficiency and heat exchange efficiency are lowered due to the smaller suction area for air intake.
[0011] In addition, in the outdoor unit for an air conditioner of the suction and discharge system, a single-phase or three-phase induction motor is generally used to drive the blower fan. Since the overall efficiency of the induction motor is at a low level of 40 to 50%, in particular, The stable region of its torque characteristics as a rotating force is narrow, so that the range of the change region of the number of revolutions is limited
As mentioned above, when the number of revolutions exceeds the region where the torque characteristics are stable, it will cause abnormal noise or reduce its efficiency

Method used

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  • Air blower for air conditioner
  • Air blower for air conditioner
  • Air blower for air conditioner

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Embodiment Construction

[0083] Below, the present invention is described in detail with reference to accompanying drawing and embodiment:

[0084] As shown in Figures 1-2, the air blower 1 of the first embodiment of the present invention includes: an external box body 10, a fan housing 40 is made of plastic material, and is fixed inside the external box body 10, and its lower part forms an air The suction port 410a and the air discharge port are formed in the front. The blower fan is a kind of blower fan 50 installed inside the fan housing 40. The shaft 68 is connected to the blower fan 50 and is used to transmit the driving force of the motor to the blower fan 50. The bearings 69a, 69b are used to support the shaft 68, the bracket 80 is combined on the top of the fan casing 40, and used to support the bearings 69a, 69b and the stator 65, the rotor sleeve 70 is made of electrically insulating material, and is connected to the fan of the shaft 68 The rotor 60 transmits the driving force to the shaft 6...

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Abstract

This invention discloses an air-feeding device used in air-condition including the following parts: a fan shell made of plastics, an air-feed fan mounted in the shell, a shaft connected with the fan shaft and transferring the drive force of the motor to the fan, a stator fixedly set at the outside of the shell and keeping concentricity with it and a rotor connected with the shaft directly. This invention uses a brushless DC motor to drive the fan stably and increase feeding volume and reduce generation of noises.

Description

technical field [0001] The invention belongs to an air conditioner, in particular to an air supply device for an air conditioner which adopts a stable and high-efficiency brushless DC motor, thereby improving the air supply efficiency and heat exchange efficiency. Background technique [0002] Generally speaking, air conditioners are divided into split-type air conditioners that separate indoor and outdoor units and are installed in indoor and outdoor spaces respectively; and integrated air conditioners that combine indoor and outdoor units and are installed through windows or walls. air conditioner. In air conditioners, as the cooling / heating capacity increases, the volume of the indoor unit and outdoor unit also increases. Since the compressor in the outdoor unit generates large vibrations during operation, split-type air conditioners are widely used recently. air conditioner. [0003] The split type air conditioner includes: an indoor unit, which is installed indoors, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K29/00H02K29/06H02K1/14H02K1/27H02K3/04H02K3/18H02K3/34H02K5/04H02K5/16F04D25/06F04D25/08
Inventor 崔成奉孔丙求沈智燮
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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