JP2006177620A - Outdoor unit for air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit for an air conditioner capable of positively carrying out positioning and fixing of an outdoor heat exchanger, capable of improving heat exchange performance, and provided with a rigid outdoor unit casing that does not deform even when it is enabled to house an outdoor heat exchanger and an outdoor blow fan with large capacities. <P>SOLUTION: The outdoor unit of the air conditioner is provided with a locking piece part holding an upper end rim part of the outdoor heat exchanger, and a motor base for an outdoor blower with an upper part one side end fixed to a top board forming one part of the outdoor unit casing. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an outdoor unit of an air conditioner, and more particularly to an outdoor unit of an air conditioner having an improved motor base structure for fixing a fan motor for an outdoor fan.

  Conventionally, in a motor base used for an outdoor unit of an air conditioner, a lower part is screwed to a bottom plate, one upper part is hooked on an upper end part of an outdoor heat exchanger, and the other upper part is a front panel of an outdoor unit housing. There is known one that engages with (Patent Document 1).

  In recent years, a space-saving air conditioner that maintains the operating capacity from the standpoint of installation space and installation work has been desired, and in order to save space without reducing the operating capacity, the outdoor heat of the capacity as large as possible in the outdoor unit housing. Methods such as arranging an exchanger or increasing the amount of air blown by an outdoor fan are considered.

Therefore, the outdoor heat exchanger can be surely positioned and fixed, and has a strong outdoor unit housing without deformation even if it accommodates a large capacity outdoor heat exchanger and outdoor fan. There is a demand for an outdoor unit for an air conditioner.
JP 2003-28462 A

  The present invention has been made in consideration of the above-described circumstances, can reliably position and fix the outdoor heat exchanger, can improve the heat exchange performance, and has a large capacity outdoor heat exchange. It is an object of the present invention to provide an outdoor unit of an air conditioner having a strong outdoor unit housing without being deformed even if an outdoor fan and an outdoor fan are accommodated.

  In order to achieve the above-described object, an outdoor unit of an air conditioner according to the present invention is an outdoor unit of an air conditioner in which an outdoor heat exchanger, a blower, and a compressor are housed in an outdoor unit housing. It is provided with a motor base for an outdoor fan that is provided with a locking piece for sandwiching the upper end of the exchanger and whose upper one side end is fixed to a top plate that forms part of the outdoor unit housing. To do.

  According to the outdoor unit of the air conditioner according to the present invention, the outdoor heat exchanger can be reliably positioned and fixed, the heat exchange performance can be improved, and a large capacity outdoor heat exchanger can be obtained. An outdoor unit for an air conditioner having a strong outdoor unit housing can be provided without being deformed even when an outdoor blower fan is accommodated.

  Hereinafter, an embodiment of an outdoor unit of an air conditioner according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view of an outdoor unit of an air conditioner according to the present invention, and FIG. 2 is a perspective view of the outdoor unit housing removed.

  As shown in FIGS. 1 and 2, the outdoor unit 1 of the air conditioner according to the present embodiment includes an outdoor unit housing 2, and the outdoor unit housing 2 is erected from the bottom plate 3 and the bottom plate 3 to blow air. A front plate 4 provided with an outlet 4a, a side wire guard 5 and a machine room side plate (not shown) that are connected to the front plate 4 and are erected from the bottom plate 3 and serve as a suction side; The top plate 6 is placed so as to cover the upper opening formed by the side wire guard 5 and the machine room side plate.

  In addition, the interior of the outdoor unit housing 2 is divided into a heat exchange chamber 8 and a machine room 9 by a partition plate 7. The heat exchange chamber 8 is placed on the bottom plate 3 and accommodates a blower 10 and a heat exchanger 11. ing.

  Further, the machine room 9 is placed on the bottom plate 3 and is an outdoor unit that drives and controls the compressor 12, the accumulator 13, the local pipe connection part 14, various valves such as a four-way valve, refrigerant pipes, the compressor 12, the blower 10, and the like. A control device (not shown) and the like are accommodated. In addition, the side surface of the heat exchange chamber 8 is replaced with a plate shape in order to improve air permeability, and a wire-shaped side wire guard 5 is provided, and the side surface of the machine room is a plate-shaped machine room side plate in consideration of sound insulation and strength. Is used.

  The front plate 4 is provided with an air outlet 4a at a substantially central portion, a bell mouth (not shown) is provided on the heat exchange chamber 8 side of the air outlet 4a, and an air outlet grill 4b is provided outside.

  The blower 10 includes a fan 10a and a fan motor 10b that rotationally drives the fan 10a. The fan motor 10b is fixed to a motor base 15 with screws or nuts. The motor base 15 includes a bottom plate 3, a front plate 4, a top plate. 6 is fixed.

  The heat exchanger 11 includes an outer heat exchanger 11a that is L-shaped in a plan view so as to face the back side and one side of the outdoor unit 1, and a shorter side that is L-shaped than the outer heat exchanger 11a. The portion is formed short and includes an inner heat exchanger 11b that is long in the height direction.

  Further, by making the L-shaped short side portion of the inner heat exchanger 11b shorter than the outer heat exchanger 11a, contact with the fan 10a is prevented, and the radius and the axial length of the fan 10a are prevented. Can be increased, and the amount of air blown can be increased.

  Further, the outer heat exchanger 11a is located on the upstream side in the air flow direction of the blower 10, and the inner heat exchanger 11b is located on the downstream side of the outer heat exchanger 11a.

The outer heat exchanger 11a, a plurality of aluminum fins 11a ₁ and the refrigerant pipe (heat transfer tubes) 11a ₂ of the two rows in the air flow direction through the staggered manner, the end portion back end plate 16a, the front end A plate 16b is provided, the rear end plate 16a is located on the back side of the outdoor unit housing 2 and fixed to the partition plate 7, and the front end plate 16b is located on the front side and fixed to the bottom plate 3 and the front plate 4. ing.

The inner heat exchanger 11b includes a plurality of aluminum fins 11b ₁ through which a row of refrigerant pipes 11b ₂ penetrates, and a rear end plate 17a and a front end plate 17b are provided at the ends, and a rear end plate 17a. Is located on the back side of the outdoor unit housing 2 and is fixed to the partition plate 7, and the lower end of the front end plate 17 b is fixed to the bottom plate 3 via a fixture 18. The outer heat exchanger 11a and the inner heat exchanger 11b are connected to each other by a refrigerant pipe and a U pipe 19 at an end on the back side.

  Further, the motor base 15 has a lower fixing portion 15a for fixing to the bottom plate 3, a fan motor fixing portion 15b for fixing the fan motor 10b, and an upper fixing portion 15c shown in FIG.

  As shown in FIGS. 1 and 3, the top plate 6 has a flat portion 6a and a vertical mounting portion 6b formed at the peripheral end thereof, and as described above, the front plate 4, the side wire guard 5, and the machine room side plate. And is fixed to the front plate 4 and the machine room side plate by a vertical mounting portion 6b. Further, the upper fixing portion 15 c is provided with a locking portion 20 for sandwiching the upper end portion of the inner heat exchanger 11 b, and the rear side fixing portion 15 d on one end side of the upper fixing portion 15 c is the back surface of the top plate 6. The front side fixing part 15e on the other end side is fixed to the upper part of the front plate 4.

  Further, the upper fixing portion 15c of the motor base 15 is provided with the above-described locking portion 20 formed by two cuts and raised, and this locking portion 20 is composed of a front locking piece portion 20a and a back locking side piece portion 20b. Thus, the upper end portion of the inner heat exchanger 11b is sandwiched between them.

  In the figure, reference numeral 21 denotes a fixing leg for fixing the housing, and 22 denotes a service board to be removed during maintenance, inspection and repair.

  In the outdoor unit 1 of the air conditioner having the above-described structure, the upper end portion of the inner heat exchanger 11b is sandwiched by the locking portion 20, and the back side fixing portion 15d in the upper fixing portion 15c is fixed to the top plate 6. The inner heat exchanger 11b can be fixed without a gap between the inner heat exchanger 11b and the outer heat exchanger 11a, the heat exchanger can be positioned reliably, and the heat exchange performance can be improved. Can do.

  Further, since the front side fixing portion 15e is fixed to the front plate 4, the motor base 15 itself is securely fixed. Further, the upper fixing portion 15c not only positions and fixes the heat exchangers 11a and 11b but also heat. The positioning of the exchanger 11 and the blower 10 and the positioning of the blower 10 and the bell mouth and fan guard provided on the front plate 4 can be performed reliably. Even if the side surface of the heat exchange chamber 8 is changed from a plate shape to a wire-shaped side wire guard 5, the top plate 6 is supported by the motor base 15, so that the strength of the outdoor unit housing 2 is improved and shipped. Alternatively, the top plate can be prevented from being deformed even when in a stocked state.

  As described above, according to the outdoor unit of the air conditioner of the present embodiment, the outdoor heat exchanger can be reliably positioned and fixed, the heat exchange performance can be improved, and the outdoor unit housing can be improved. Even if the body can accommodate a large-capacity outdoor heat exchanger and outdoor blower fan, the outdoor unit of the air conditioner having a strong outdoor unit housing is realized without deformation.

The perspective view of the outdoor unit of the air conditioning apparatus which concerns on this invention. The perspective view which removed the outdoor unit housing | casing of the outdoor unit of the air conditioning apparatus which concerns on this invention. The longitudinal cross-sectional view of the motor base upper fixed part used for the outdoor unit of the air conditioning apparatus which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Outdoor unit of air conditioner, 2 ... Outdoor unit housing, 3 ... Bottom plate, 4 ... Front plate, 5 ... Side wire guard, 6 ... Top plate, 6a ... Plane portion, 6b ... Vertical mounting portion, 8 ... Heat Exchange room, 9 ... Machine room, 10 ... Blower, 11 ... Heat exchanger, 11a ... Outer heat exchanger, 11b ... Inner heat exchanger, 12 ... Compressor, 15 ... Motor base, 15a ... Lower fixing part, 15b ... Fan motor fixing part, 15c ... upper fixing part, 15d ... back side fixing part, 15e ... front side fixing part, 16a ... back end plate, 16b ... front end plate, 17a ... back end plate, 17 ... front end plate, 20 ... locking part, 20a ... front side locking piece part, 20b ... back locking side piece part.

Claims (3)

In an outdoor unit of an air conditioner in which an outdoor heat exchanger, a blower, and a compressor are housed in an outdoor unit housing, a locking piece for sandwiching an upper end of the outdoor heat exchanger is provided, and an upper one side end An outdoor unit for an air conditioner, comprising: a motor base for an outdoor fan fixed to a top plate that forms a part of the outdoor unit housing. The outdoor heat exchanger is formed by stacking a plurality of heat exchangers in the air flow direction, and the locking piece holds the upper edge of the heat exchanger located on the downstream side of the plurality of heat exchangers. The outdoor unit for an air conditioner according to claim 1. The outdoor unit for an air conditioner according to claim 1 or 2, wherein the outdoor fan motor base is also fixed to a front plate of the outdoor unit casing.

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