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Outdoor unit of air conditioner

A technology for air conditioners and outdoor units, which is applied in the field of outdoor units and can solve problems such as heat exchanger deformation, melting, and refrigerant pipe cracking

Active Publication Date: 2016-09-14
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the outdoor unit shown in Patent Document 1 is positioned only at two points at the lower end of the parallel piping heat exchanger, so it is in a free state in which the lower end serves as a fulcrum and the upper end is not constrained.
Therefore, there is a problem that, when the heat exchanger is installed obliquely with respect to the base plate or the heat exchanger vibrates during transportation or operation, excessive stress acts on the connected refrigerant piping, cracking of the refrigerant piping occurs, and Faults such as refrigerant leakage or abnormal noise
[0011] In addition, if the outdoor unit shown in Patent Document 1 is a parallel pipe heat exchanger composed of aluminum fins and pipes, for example, directly contacted and fixed to an iron frame, water or the like will intervene in the contact portion. case, will become dissimilar metal contacts
In this way, there are problems that galvanic corrosion occurs on aluminum, which has a lower potential than iron, and pitting corrosion occurs on header pipes or flat pipes, resulting in refrigerant leakage.
[0012] In addition, the outdoor unit shown in Patent Document 2 has the problem that when the pipes near the heat exchanger are brazed with a spray gun during maintenance or manufacture in the market, the heat of the spray gun causes the heat exchanger to deform and cause damage. melt

Method used

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  • Outdoor unit of air conditioner
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  • Outdoor unit of air conditioner

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0033] figure 1 It is a perspective view of the outdoor unit 100 of the air conditioner which concerns on 1st Embodiment of this invention.

[0034] figure 2 It is a front view of the heat exchanger 1 mounted on the outdoor unit 100 .

[0035] based on figure 1 with figure 2 The structure and function of the outdoor unit 100 will be described.

[0036] Such as figure 1 As shown, the outdoor unit 100 includes a heat exchanger 1 , a base plate 3 , a rear plate 4 , a partition plate 5 , and screws 6 .

[0037] The heat exchanger 1 is formed of, for example, an aluminum parallel pipe heat exchanger, and is provided on the rear side of the outdoor unit 100 . The heat exchanger 1 will be specifically described later. The base plate 3 has a box shape with an open top and constitutes the bottom of the outdoor unit 100 . Components such as the heat exchanger 1 accommodated in the outdoor unit 100 are placed on the base plate 3 . The rear panel 4 is a panel constituting a ...

no. 2 approach

[0085] Figure 9 It is a partial perspective view of the outdoor unit 100 of the air conditioner which concerns on 2nd Embodiment of this invention.

[0086] Such as Figure 9 As shown, a screw hole 3 a is formed in the standing portion on the front side of the substrate 3 , and a screw hole 5 a is formed in the lower portion on the front side of the partition plate 5 . Therefore, the substrate 3 and the partition plate 5 can be fixed by sequentially inserting the screws 6 through the screw holes 3 a and 5 a in a state where the back surface of the upright portion on the front side of the substrate 3 is in contact with the lower portion on the front side of the partition plate 5 . .

[0087] In addition, screw holes 5 c and 5 d are formed on the back surface of the partition plate 5 , and screw holes 17 c and 17 d are formed on the front surface of the fixture 17 . Therefore, in a state where the back surface of the substrate 3 is in contact with the front surface of the pa...

no. 3 approach

[0090] Figure 10 It is a perspective view of the heat exchanger 1 attached to the outdoor unit 100 mounted on the air conditioner according to the third embodiment of the present invention.

[0091] Such as Figure 10 As shown, the second spacer 23a is attached to the upper surface of the side plate 12a, and the second spacer 23b is attached to the lower surface of the side plate 12b, and each spacer is made of, for example, a U-shaped resin member. The second spacer 23a, 23b is located between the two manifolds 7 . In addition, "コ-shape" means a shape that forms the shape of the katakana character "コ".

[0092] In addition, the side plates 12a and 12b may be collectively referred to as "side plates 12". In addition, the second spacers 23a and 23b may be collectively referred to as "second spacers 23".

[0093] Figure 11 It is a perspective view of the second spacer 23 attached to the heat exchanger 1 mounted on the outdoor unit 100 .

[0094] Figure 12 It is a plan ...

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Abstract

The invention provides an outdoor unit of an air conditioner. The partition (5) and the base plate (3) of the heat exchanger (1), the first spacer (15) which is installed on a part of the header (7), covers the header (7) with this part, and the first spacer (15) which is installed on the A fixing part (17) for fixing the heat exchanger (1) on a spacer (15) through the first spacer (15), the first spacer (15) is made of resin or ratio to form the heat exchanger (1) Metal Formation of lower metals.

Description

technical field [0001] The present invention relates to an outdoor unit of an air conditioner. Background technique [0002] The outdoor unit of a conventional air conditioner is equipped with, for example, a cross-fin pipe heat exchanger having a heat exchange section composed of fins made of aluminum and circular pipes made of copper. And the heat exchanger side plate located on the end face of the fin. [0003] The lower surface of the cross-fin-pipe heat exchanger is a flat surface with no step difference composed of flat fins with the same width, so the cross-fin-pipe heat exchanger is surface-contacted with the fins on the substrate. installed on the outdoor unit. [0004] In addition, the partition plate separating the equipment room and the blast chamber is screwed to the base plate, the back plate is screwed to the base plate, and the partition plate and the back plate are in contact with the heat exchanger side plate. In addition, the end faces of the heat excha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F1/16
CPCF24F13/30F24F1/14F24F1/16
Inventor 小田木广征
Owner MITSUBISHI ELECTRIC CORP
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