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Air conditioner

An air-conditioning device and scroll technology, applied in air-conditioning systems, space heating and ventilation, heating methods, etc., can solve the problems of increased ventilation resistance at the heat exchanger, decreased air supply capacity and heat exchange capacity, and air bias flow.

Inactive Publication Date: 2007-08-29
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the above-mentioned conventional air conditioner, the heat exchanger faces almost the entire surface of the flat plate portion of the partition member, and the communication opening of the flat plate portion, that is, the swirl outlet of the scroll housing is provided only on the flat plate portion of the partition member. Partly, therefore, the air blown from the vortex outlet to the heat exchanger chamber will pass through the heat exchanger almost without diffusion, and the air passing through the heat exchanger will have a biased flow, which will increase the ventilation resistance at the heat exchanger and cause the air to be blown. Problems with reduced capacity and heat exchange capacity
In particular, when a plurality of impellers and scroll casings are arranged side by side as in the above-mentioned conventional air conditioner, the above-mentioned problem occurs at each scroll outlet.

Method used

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  • Air conditioner
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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0092] 1 and 2 show a ceiling-suspended air conditioner 1 as a first embodiment of the air conditioner according to the present invention. Here, FIG. 1 is a side cross-sectional view of the air conditioner 1 (showing a cross-section of the scroll casing 32b). FIG. 2 is a top sectional view of the air conditioner 1 .

[0093] The air conditioner 1 is suspended from the ceiling of an air-conditioned room, and is connected to an outdoor unit (not shown) arranged outdoors through a refrigerant connection pipe (not shown).

[0094] The air conditioner 1 mainly includes a unit casing 2 , a centrifugal blower 3 , and a heat exchanger 4 .

[0095]

[0096] The unit case 2 is formed in a thin box shape elongated laterally as a whole, and its dimension in the height direction becomes smaller from the rear side to the front side. A unit suction port 2 a for sucking room air into the unit case 2 is provided on the back side portion of the bottom surface of the unit case 2 . In additi...

example 2

[0137] In addition, a plurality of dimples may be provided on the inner surfaces of the wall portions 61a to 61d, that is, the surfaces on the side of the scroll outlet portions 37a to 37d. When taking the wall portion 61b as an example for illustration, as shown in FIG. 6, a plurality of pits 72 can be set on the inner surface of the wall portion 61b, that is, the surface on the side of the scroll outlet portion 37b (Fig. 6 shows a plurality of pits 72 In the case of providing on the side wall portion 62, the same plurality of dimples 72 may also be provided on the other wall portions 63 to 65).

[0138] In this way, since a plurality of dimples 72 are provided on the inner surface of the wall portions 61a to 61d, that is, on the surface on the side of the scroll outlet portions 37a to 37d, the flow from the swirl outlets 35a to 35d to the heat exchanger chamber S2 can be adjusted. The air blown inside follows the surfaces on the side of the scroll outlets 37a to 37d of the w...

example 3

[0141] In addition, the sawtooth portion in Modification 1 and the plurality of dimples or through holes in Modification 2 may be provided on the wall portions 61 a to 61 d at the same time. When the wall portion 61b is taken as an example for description, as shown in FIG. A plurality of dimples 72 are set on the surface of the unscrewing port portion 37b side (Fig. The same sawtooth portion 71 and the plurality of dimples 72 are provided on the other wall portions 63 to 65. In addition, instead of the plurality of dimples 72, a plurality of through holes may be provided).

[0142] Thereby, the effects of both modification 1 and modification 2 can be obtained.

[0143] (6) Modification 4

[0144] In addition, in the air conditioner 1 of the above-mentioned first embodiment (including Modifications 1 to 3), the impellers 31a to 31d are arranged to rotate around the rotation axis O along the flat plate portion 25 of the partition member 24, and the impellers 31a to 31d are dri...

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Abstract

The object of the invention is to suppress deviation of flow of air passing through a heat exchanger while air supply capability in an air conditioner including a unit casing partitioned into a blower chamber and a heat exchanger chamber by a partition member, in which an impeller and a scroll casing are arranged in the blower chamber, and in which the heat exchanger is arranged in the heat exchanger chamber. The air conditioner (1) has the unit casing (2) partitioned by the partition member (24) into the blower chamber (S1) and the heat exchanger chamber (S2), impellers (31a-31d) and scroll casings (32a-32d) arranged in the blower chamber (S1), and the heat exchanger (4) provided in the heat exchanger chamber (S2) so as to face scroll blowout openings (35a-35d) of the scroll casings (32a-32d). Wall sections (61a-61d) projected to the heat exchanger (4) side from a flat plate section (25) of the partition member (24) are arranged outside scroll exits (37a-37d) of the scroll casings (32a-32d).

Description

technical field [0001] The present invention relates to an air conditioner, in particular to a centrifugal blower which has a unit casing which is divided into a blower chamber and a heat exchanger chamber by a partition member, and which has an impeller and a scroll casing for accommodating the impeller. An air conditioner disposed in the heat exchanger chamber facing the swirl outlet of the swirl housing. Background technique [0002] Conventionally, there is an air conditioner that includes: a centrifugal blower having an impeller and a scroll housing for accommodating the impeller, a heat exchanger, and a unit case in which the blower chamber and the heat exchanger chamber are separated by a partition member, and has the impeller and A centrifugal blower for a scroll case housing an impeller is disposed in the blower chamber, and a heat exchanger is disposed in the heat exchanger chamber facing the scroll outlet of the scroll case. [0003] An example of such an air con...

Claims

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Application Information

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IPC IPC(8): F24F1/00
Inventor 东田匡史山崎登博
Owner DAIKIN IND LTD