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Indoor unit of air conditioner

A technology for indoor units and air conditioners, which is applied in the field of indoor units, and can solve problems such as performance degradation, air passage space limitation, and inability to fully expand the cross-sectional area of ​​the air passage.

Active Publication Date: 2021-05-18
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, when the heat exchanging parts facing each other are arranged in parallel in the indoor unit of an air conditioner equipped with such a U-shaped heat exchanger to blow air in one direction, there is a problem that the space of the wind passage is affected. Restricted, the cross-sectional area of ​​the wind passage cannot be fully expanded, and the performance is reduced

Method used

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  • Indoor unit of air conditioner
  • Indoor unit of air conditioner
  • Indoor unit of air conditioner

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0070] figure 1 The perspective view which looked at the indoor unit of the air conditioner which concerns on 1st Embodiment of this invention from obliquely below is shown. This indoor unit is a ceiling-embedded indoor unit.

[0071] like figure 1 As shown, the indoor unit of the air conditioner according to the first embodiment includes: a casing main body 1; a rectangular panel 2 provided on the lower side of the casing main body 1; and a grille 3 detachably attached to the panel. 2. The casing is formed by using the casing main body 1 , the panel 2 and the grid 3 .

[0072] On the lower surface of the panel 2 , which is one of the longitudinal directions of the panel 2 , an outlet 10 through which the blown air is blown downward is provided along the short side of the panel 2 . In addition, a baffle 20 is rotatably attached to the panel 2 . exist figure 1 In , the state where the air outlet 10 is closed by the baffle 20 is shown.

[0073] In addition, a drain pipe s...

no. 2 approach

[0121] Figure 15 A bottom view showing a state in which a panel, a drain pan, and the like are removed from an indoor unit of an air conditioner according to a second embodiment of the present invention. The indoor unit of the air conditioner of the second embodiment has the same structure as that of the indoor unit of the air conditioner of the first embodiment except for the U-shaped heat exchanger 140. Figure 1 to Figure 3 .

[0122] Such as Figure 15 As shown, the indoor unit of the air conditioner according to the second embodiment includes a U-shaped heat exchanger 140 in plan view. The heat exchanger 140 includes: a first heat exchange portion 141 arranged parallel to the first wall portion 11 of the housing body 1; a second heat exchange portion 142 connected to one end of the first heat exchange portion 141; and The third heat exchange part 143 is connected to the other end of the first heat exchange part 141 . The second heat exchange portion 142 extends paral...

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Abstract

The indoor unit of the air conditioner is provided with: a casing main body (1); a vortex fan (30), which is arranged in the casing main body (1); It is arranged in the casing main body (1); the partition plate (50), which connects the two ends of the heat exchanger (40), and surrounds the vortex fan (30) together with the heat exchanger (40); and the air outlet ( 10) It is provided on the side opposite to the partition plate (50) with respect to the heat exchanger (40) so that the blown air is blown downward. The downstream side of the air passage (P) from the heat exchanger (40) to the air outlet (10) in the housing body (1) has a first air passage area (Aa) and a second air passage area (Ab). The cross-sectional shape of the first air passage area (Aa) is along one side of the housing body (1), and the second air passage area (Ab) is from both ends of the first air passage area (Aa) toward the second The wall portion (12) extends sideways. Thereby, the indoor unit of the air conditioner which can reduce the pressure loss of an air passage and can improve performance is provided.

Description

technical field [0001] The present invention relates to an indoor unit of an air conditioner. Background technique [0002] In the past, as an indoor unit of an air conditioner, there is a structure as follows: a U-shaped heat exchanger is provided, and the air sucked by a vortex fan is blown out in three directions through the heat exchanger (for example, refer to Japanese Patent Application Laid-Open No. 2002-349890 ( Patent Document 1)). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2002-349890 Contents of the invention [0006] The problem to be solved by the invention [0007] According to the above-mentioned indoor unit of the conventional air conditioner, it is preferable that the opposed heat exchange parts of the U-shaped heat exchanger are arranged in parallel. [0008] However, when the heat exchanging parts facing each other are arranged in parallel in the indoor unit of an air conditioner...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/0022F24F1/0063F24F13/22F24F13/30
CPCF24F13/22F24F13/30F24F1/0011F24F13/081F24F1/0047
Inventor 大石康弘土居弘和
Owner DAIKIN IND LTD