JP5591218B2 - Air conditioner outdoor unit - Google Patents

Description

  The present invention relates to an outdoor unit of an air conditioner, and more particularly to a drainage structure of a bottom plate of the outdoor unit.

  A conventional outdoor unit of an air conditioner is provided with a bottom plate on which at least a heat exchanger is placed, and on this bottom plate, a water conduit forming wall is formed at a position along the heat exchanger, and a water conduit is formed. A drain drain hole and a downward inclined surface that continues to the drain drain hole are provided in the water conduit formed by the wall so that the drain water does not flow to any part other than the lower part of the heat exchanger, and the bottom plate is formed by the water conduit forming wall. (For example, refer to Patent Document 1).

JP 2010-54063 A (3rd and 4th terms, FIGS. 1 to 3)

  Since the outdoor unit of the air conditioner described in Patent Document 1 is provided with a drain hole at the lowest part of the water channel formed of the water channel forming wall and the inclined surface on the bottom plate, the drain water is concentrated and drained. The drainage water around the heat exchanger and drainage prevention are effective, but the rainwater that has entered from the outlet cannot be drained reliably because of the obstacles such as the walls of the conduit. For this reason, in cold districts and the like, it may freeze and damage the interior of the outdoor unit.

  The present invention has been made to solve the above-described problem, and ensures the strength of the bottom plate, and can also reliably drain drain water generated in the heat exchanger and rain water entering from the outlet. The purpose is to provide an outdoor unit of the machine.

An outdoor unit of an air conditioner according to the present invention has a bottom plate on which a heat exchanger is mounted at least on the back side, and a water conduit formed of an inclined surface is provided on the bottom plate along the longitudinal direction of the heat exchanger. The bottom is provided with a drain outlet, and in the longitudinal direction on the front side of the bottom plate, a convex part having a reinforcing concave part formed in the longitudinal direction of the upper surface is provided, and the convex part is divided in the longitudinal direction. In the meantime, a drainage path inclined toward the back side is formed, and a reinforcing step part is provided integrally with the convex part at the base part of the convex part corresponding to the drainage path. is there.

  In the outdoor unit of the air conditioner according to the present invention, drain water in which frost generated in a heat exchanger provided on the bottom plate is melted is drained from a drain through a water conduit, and rainwater that has entered from a blow-out port is drained from a drain. Since it drains from a drain outlet through a water channel, since drainage is performed reliably, icing can be prevented. In addition, in the longitudinal direction on the front side of the bottom plate, a convex portion having a reinforcing recess is provided on the top surface, so that the strength can be secured, and further, vibration and noise can be prevented, etc. The effect of compatibility can be obtained.

It is a perspective view of the baseplate of the outdoor unit of the air conditioner concerning Embodiment 1 of the present invention. FIG. 2 is a perspective view in which a heat exchanger and a compressor are mounted on the bottom plate of FIG. 1. It is a top view of the state which installed the air blower further in the bottom plate of FIG. It is an external appearance perspective view of the outdoor unit which concerns on this Embodiment. It is a perspective view of the principal part of the baseplate of FIG. It is the perspective view seen from the AA cross section of FIG. It is AA sectional drawing of FIG.

[Embodiment 1]
In FIGS. 1-7 for demonstrating the outdoor unit which concerns on Embodiment 1 of this invention, the outdoor unit has the baseplate 1 provided with the outer periphery frame 2 which is substantially rectangular parallelepiped shape and surrounds a periphery, and the top of the baseplate 1 is The blower chamber 12 and the machine chamber 13 are partitioned by the partition plate 11. An L-shaped heat exchanger 14 is mounted from the back side to the side surface of the blower chamber 12, and a blower 15 is installed on the front side of the heat exchanger 14. A compressor 16 is mounted in the machine room 13. And these are covered with the outer box 17 which faced the air blower 15 in the front side, and was provided with the blower outlet 18. FIG.

  On the back side of the bottom plate 1, a water conduit 4 made of an inclined surface is provided, and a drain port 5 is provided on the lowermost surface portion 3 thereof. Further, in the longitudinal direction (left-right direction) on the front surface side of the bottom plate 1 on the fan chamber 12 side, a convex portion (reinforcing rib) having a trapezoidal cross section provided with a U-shaped reinforcing concave portion 7 in the longitudinal direction of the upper surface. A plurality of strips 6a, 6b, 6c (hereinafter sometimes simply referred to as 6) are provided across the water passage 9 in the front-rear direction (three strips are shown in the figure). The sections 6a to 6c are divided in the longitudinal direction, and drainage paths 8a, 8b, and 8c (hereinafter, simply referred to as 8) are provided between them. The drainage paths 8a to 8c are connected from the water passage 9 to the water conduit. It is inclined toward the back side toward 4.

  In the outdoor unit configured as described above, when a heating operation is performed by an air conditioner, frost is generated on the surface of the heat exchanger 14 of the outdoor unit, and grows with time and the function of the heat exchanger 14 decreases. To do. Therefore, in order to melt this frost, defrosting operation is repeatedly performed for a certain period of time, but the melted water is drained and dripped onto the water conduit 4 of the bottom plate 1 and flows to the drain outlet 5 along the inclined surface. Guided and drained outside.

  In addition, rainwater that has entered from the front outlet 18 is guided to the water conduit 4 through the drainage paths 8a to 8c and the water passage 9, and drained from the drain outlet 5, so that it is possible to prevent rainwater from freezing.

According to the present embodiment, in order to remove the frost generated on the surface of the heat exchanger 14 by the heating operation, the drain water melted by performing the defrosting operation is dropped onto the water guide channel 4 to form the inclined surface. Since it flows down and drains from the drain port 5 to the outside, the drain water can be drained reliably, and it does not freeze on the way even in cold regions.
Further, rainwater that has entered from the front-side outlet 18 is guided to the water conduit 4 through the drainage paths 8a to 8c and the water passage 9, and flows down the inclined surface and is drained from the drain outlet 5, so that the rainwater is drained from the bottom plate. There is no fear of icing on 1, and the reliability of the heat exchanger 14 and the blower 15 can be improved.

  Further, since a plurality of convex portions (reinforcing ribs) 6a to 6c having a trapezoidal cross section and having reinforcing concave portions 7 on the upper surface are provided in the longitudinal direction of the front surface side of the blower chamber 12 of the bottom plate 1, space saving and the bottom plate 1 are reduced. Can be ensured, and vibration and noise can be prevented. In addition, the bending R of the reinforcement recessed part 7 provided in the upper surface of the convex-shaped parts 6a-6c can implement | achieve further intensity | strength ensuring by work hardening of a sheet metal by making it the minimum dimension which does not produce plastic deformation. Further, when the width of the flat portion at the bottom of the reinforcing recess 7 is narrow, the reinforcing recess 7 may be formed in a V-shaped cross section.

[Embodiment 2]
In Embodiment 1, in order to ensure the strength of the drainage of rainwater entering from the outlet 18 and the bottom plate 1, the plurality of convex portions 6a to 6c are provided with the water passage 9 therebetween, and the respective convex portions 6a. Although the case where the drainage paths 8a to 8c through which rainwater flows is provided by dividing ~ 6c is shown, when the drainage paths 8a to 8c are provided by dividing the respective convex parts 6a to 6c as described above, The strength of the bottom plate 1 may be reduced depending on the position and number of division of the parts 6a to 6c.

  In the present embodiment, in order to prevent such a decrease in the strength of the bottom plate 1, a reinforcing step portion 10 is provided along the convex portion 6 at the root of the convex portion 6 corresponding to the drainage path 8. Thus, the strength of the periphery of the drainage path 8 and further the bottom plate 1 is ensured.

  According to the present embodiment, since the reinforcing stepped portion 10 is provided along the convex portion 6 at the root of the convex portion 6 corresponding to the drainage route 8, the drainage route is provided at an arbitrary position with good drainage efficiency. 8 can be provided, and by providing the reinforcing stepped portion 10, it is possible to increase the width and number of the drainage channels 8.

  DESCRIPTION OF SYMBOLS 1 Bottom plate, 2 Outer frame, 3 Bottom surface part, 4 Water conduit, 5 Drainage port, 6a-6c Convex part, 7 Reinforcement recessed part, 8a-8c Drainage path, 9 Water flow path, 10 Reinforcement step part, 11 Partition plate, 12 Blower room, 13 Machine room, 14 Heat exchanger, 15 Blower, 16 Compressor, 17 Outer box, 18 Outlet.

Claims (4)

At least a bottom plate with a heat exchanger mounted on the back side;
The bottom plate is provided with a water conduit having an inclined surface along the longitudinal direction of the heat exchanger, and a drain outlet is provided at the lowest portion thereof. The longitudinal direction on the front side of the bottom plate includes a reinforcing recess in the longitudinal direction of the top surface. While providing a convex part formed with,
The convex portion is divided in the longitudinal direction, and a drainage passage that is inclined toward the back side is formed therebetween ,
An outdoor unit of an air conditioner , wherein a reinforcing stepped portion is provided integrally with the convex portion at a base portion of the convex portion corresponding to the drainage path .   The outdoor unit of an air conditioner according to claim 1, wherein the convex portion has a trapezoidal cross section.   The outdoor unit for an air conditioner according to claim 1 or 2, wherein a plurality of the convex portions are provided in the front-rear direction of the bottom plate with a water passage therebetween. The outdoor unit of an air conditioner according to any one of claims 1 to 3, wherein the reinforcing recess has a V-shaped cross section.

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