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air conditioner

An air conditioner and air technology, applied in air conditioning systems, air flow control components, space heating and ventilation, etc., can solve problems such as increased power consumption, and achieve the effects of preventing air supply disturbance, reducing noise, and ensuring flow

Active Publication Date: 2020-03-20
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the necessary flow, the speed of the cross-flow fan must be increased, and the power consumption increases

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach

[0044] Figure 1 ~ Figure 3 The indoor unit of the air conditioner of this embodiment is shown. The indoor unit includes a heat exchanger 1 and a cross-flow fan 2 which are installed in a casing 3 . A suction port 4 is formed from the upper surface of the casing 3 to the upper portion of the front surface, and an air outlet 5 is formed at the lower portion of the front surface of the casing 3 .

[0045] An air duct 6 is formed inside the housing 3 from the suction port 4 to the air outlet 5 , and the heat exchanger 1 is disposed in the air duct 6 , and a cross-flow fan 2 is disposed downstream of the heat exchanger 1 in the air blowing direction. The filter is arranged at the suction port 4, and dust is removed from the indoor air taken in from the suction port 4 by the filter. The wind guide panel 7 is provided at the air outlet 5 so as to be openable and closable.

[0046] The casing 3 is composed of a back panel 10 and a front panel 11 , and the front panel 11 is detacha...

no. 2 approach

[0058] Such as Figure 12 , 13 As shown, the windshield material 30 of this embodiment is formed so that the lower surface may incline downward. Although the axial width of the present windshield 30 is not changed compared with the windshield 30 of the first embodiment, the rear end of the lower surface is located below the front wall 14 . Therefore, the area of ​​the lower surface of the windshield 30 increases. Other structures are the same as those of the first embodiment. Thus, by increasing the area of ​​the lower surface of the windshield 30, the effect of blocking the air flowing in the direction opposite to the blowing direction is enhanced.

no. 3 approach

[0060] Such as Figure 14 , Figure 15 As shown, the windproof material 30 of this embodiment is formed so that the upper surface contacts the stabilizer 16 . Although the axial width of this windshield 30 is not changed compared with the windshield 30 of 1st Embodiment, the upper end of an upper surface is located higher. The lower surface is flush with the front wall 14 . Therefore, the area of ​​the upper surface of the windshield material 30 increases and becomes a long inclined surface along the blowing direction. Other structures are the same as those of the first embodiment. Thus, by increasing the area of ​​the upper surface of the windshield 30 , it is possible to suppress the flow of air blown from the cross flow fan 2 along the side wall 15 . Therefore, it is possible to reduce the turbulence of the air blowing generated in the vicinity of the side wall 15 and realize smooth air blowing.

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Abstract

An air path 6 extending from an inlet port 4 to an outlet port 5 is formed in a cabinet 3, and the air path 6 is provided with a crossflow fan 2 that sends air which has passed through a heat exchanger 1 to the outlet port 5. A stabilizer 16 is provided facing the crossflow fan 2, and the stabilizer 16 is connected to a front wall 14 of the air path 6. A connecting portion 17 between the stabilizer 16 and the front wall 14 of the air path 6 is provided with an airflow blocker 30 that blocks intake from the axial direction edge on the blowing side of the crossflow fan 2 such that the airflow blocker protrudes from an airflow path wall surface. The airflow blocker 30 covers a corner portion surrounded by the connecting portion 17 and a side wall 15 of the airflow path 6. Thus, it is possible to reduce noise by preventing suction from the blowing side of the crossflow fan while maintaining the flow rate of air blown from the outlet port.

Description

technical field [0001] The present invention relates to an air conditioner utilizing a cross-flow fan. Background technique [0002] In an indoor unit of an air conditioner, hot air or cold air is blown out from an air outlet of a housing by driving a cross-flow fan. In a cross-flow fan, generally, the rotation of the blades is used to increase the pressure of the gas. Although a pressure loss occurs when the sucked air passes through the air passage in the housing, the desired air volume is ensured by increasing the pressure of the circulating air by using the cross-flow fan. [0003] In the cross-flow fan, the air volume at the ends in the axial direction is smaller than that at the center. If the air flow resistance increases due to filter clogging, etc., and the air passage becomes a state of high pressure loss, the air intake amount of the cross-flow fan decreases, and the blowing amount also decreases. At the end of the cross-flow fan, since the intake amount of air...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/0025F24F13/24F24F13/08
CPCF24F1/00
Inventor 高桥雅也
Owner SHARP KK
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