Air conditioner

A technology of air conditioners and outdoor units, applied in the field of air conditioners, can solve the problems of inability to properly perform heat exchange and obtain cooling effects, and achieve the effect of reducing the impact

Active Publication Date: 2011-04-13
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, if there is a gap between the refrigerant jacket and the power element when thermally connecting the refrigerant jacket and the power element, he

Method used

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Examples

Experimental program
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Effect test

Example

[0028] (First embodiment of the invention)

[0029] figure 1 It is a piping diagram of the refrigerant circuit 10 in the air conditioner 1 according to the first embodiment of the present invention. This air conditioner 1 is a heat pump type air conditioner capable of performing cooling operation and heating operation. Such as figure 1 As shown, the air conditioner 1 has an outdoor unit 100 installed outdoors and an indoor unit 200 installed indoors. The outdoor unit 100 and the indoor unit 200 are connected to each other via the first connection pipe 11 and the second connection pipe 12 to constitute a refrigerant circuit 10 that circulates the refrigerant to perform a vapor compression refrigeration cycle.

[0030]

[0031] The indoor unit 200 is provided with an indoor heat exchanger 210 for exchanging heat between the refrigerant and indoor air. As the indoor heat exchanger 210, for example, a cross-fin type fin-and-tube heat exchanger or the like can be used. In addition, a...

Example

[0050] (The second embodiment of the invention)

[0051] Figure 5 It is a schematic diagram showing the cross-sectional shape of the outdoor unit 300 according to the second embodiment of the present invention. Such as Figure 5 As shown, in the outdoor unit 300, the installation position of the switch box 40 is different from the installation position of the switch box in the outdoor unit 100 of the first embodiment.

[0052] In this embodiment, as Figure 5 As shown, a working opening 71 is formed on the side surface of the outdoor unit casing 70, and a refrigerant jacket 20 is provided at a position close to the working opening 71. In addition, an installation opening 72 is formed on a surface (in this example, the front surface of the outdoor unit casing 70) adjacent to the surface on which the operation opening 71 is provided. The mounting opening 72 has an opening size that allows the switch box 40 to pass through, and is open to the space on the back side of the refrigeran...

Example

[0054] (The third embodiment of the invention)

[0055] Image 6 It is a schematic diagram showing the front shape and the side cross-sectional shape of the outdoor unit 400 according to the third embodiment of the present invention. The feature of the outdoor unit 400 of this embodiment is expressed in the method of mounting the printed circuit board 31. That is, in this embodiment, as Image 6 As shown, the printed circuit board 31 is installed upright with the power element 33 on the upper side.

[0056] As a result, the heat radiated from the power element 33 to the air is transferred upward along with the air flow. Therefore, in the outdoor unit 400, it is difficult for the heat radiated from the power element 33 to the air to be transferred to other circuit elements via the air, so that the heat radiated from the power element 33 can be reduced to other elements on the printed circuit board 31. Impact.

[0057] -Industrial applicability-

[0058] The air conditioner accordi...

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PUM

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Abstract

Disclosed is an air conditioner in which a printed circuit board (31), on which is mounted a power element (33), and a refrigerant jacket (20), to which said power element (33) is thermally connected and inside of which a refrigerant used in the refrigeration cycle circulates, are provided inside an outdoor machine casing (70). In this case, the printed circuit board (31) is housed in a switch box (40). A service opening (71) is also provided in the outer surface of the outdoor machine casing (70). The refrigerant jacket (20) faces the service opening (71) and is arranged more toward the front than the power element (33) when viewed from the service port (71).

Description

technical field [0001] The present invention relates to an air conditioner in which a refrigerant circulates to perform a vapor compression refrigeration cycle. Background technique [0002] In an air conditioner that performs a vapor-compression refrigeration cycle by circulating a refrigerant, a circuit such as a DC / AC conversion circuit is installed to control the operating state of a motor of the compressor. Generally speaking, power components that generate high temperature are used in the DC-AC conversion circuit, and components for cooling the power components are provided in existing air conditioners to prevent the temperature of the power components from exceeding the working temperature. An example of the above-mentioned cooling member is a member that cools a power element using a refrigerant used in a refrigeration cycle (see, for example, Patent Document 1). In the air conditioner disclosed in Patent Document 1, the refrigerant passage through which the refrige...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24F1/22F24F1/24
CPCF24F1/24F24F2013/207F24F13/20F24F1/22
Inventor 奥田则之竹仲则博升井友洋
Owner DAIKIN IND LTD
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