JP2017009263A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner that can prevent outside air containing rain water from flowing into an electric component box while taking in the outside air.SOLUTION: An air conditioner has an outdoor unit including an electric component box therein. An introduction port for introducing outside air into an electric component box is provided on a side surface of a body of the outdoor unit, and an electric cover 200 is arranged on the side surface of the body to cover the introduction port. A cooling suction port 211 for taking air to be introduced to the introduction port is arranged on the upper side of the electric cover, and an opening through which refrigerant piping is made to pass is disposed on the lower side. An inner cover with which outside air taken in from the cooling suction port is made to collide is disposed between the cooling suction port and the introduction port. A partition plate 230 for partitioning inside of the electric cover into an upper portion having the cooling suction port and a lower portion having the opening is disposed to come into contact with the inner surface of the electric cover. A reservoir region in which water is retained is formed in a region surrounded by the upper surface of the partition plate, the electric cover and the side surface of the body. The partition plate includes a drain hole for discharging water retained in the reservoir region.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an outdoor unit of an air conditioner, and more particularly to cooling of an electrical component box of the outdoor unit.

  The outdoor unit is provided with an electrical component box that houses electrical components therein. This electrical component box is provided at a position in contact with the side of the outdoor unit from the inside, and a hole for taking air into the electrical component box is provided on this side. There was a risk of intrusion. Therefore, an electrical cover is provided on the side surface of the main body of the outdoor unit so that rainwater does not enter the electrical component in the electrical component box. On the other hand, in order to cool the electrical equipment, the electrical equipment cover is provided with a cooling inlet for circulating outside air inside the outdoor unit. The outdoor air blown in the outdoor unit causes the outside air taken in from the cooling inlet to flow into the electrical component box to cool the electrical component.

  However, in rainy weather, rainwater is taken together with the outside air from the cooling inlet into the outdoor unit, and rainwater also flows into the electrical component box. For this reason, there is a risk that the electrical component may be damaged by rainwater.

  Therefore, there is a method disclosed in Patent Document 1 as a method for preventing rainwater from flowing into the electrical component box even in rainy weather. In Patent Document 1, the plate-shaped inner cover is covered with an electrical cover having a cooling inlet. The inner cover is provided between the main body and the electrical cover at a position facing the cooling inlet. The outside air containing rainwater taken in from the cooling suction port collides with the inner cover and is separated into air and water, and only air flows into the electrical component box, eliminating the risk of electrical components breaking down. ing.

Japanese Patent No.4391368

  However, there is an opening for passing the refrigerant pipe below the electrical cover, and outside air is also taken in from this opening. Since the outside air taken in from this opening does not collide with the inner cover, it flows into the electrical component box in a state containing rainwater, and there is a possibility that the electrical component may break down due to rainwater.

  Therefore, the present invention provides an air conditioner that prevents outside air containing rainwater from flowing into an electrical component box.

  In order to provide the air conditioner described above, the present invention is an air conditioner including an outdoor unit having an electrical component box therein, and introduces outside air into the electrical component box on the side surface of the main body of the outdoor unit. An electrical inlet is provided on the side surface of the main body so as to cover the inlet, and the electrical cover is provided with a cooling inlet for taking in air introduced into the inlet at the upper part and a refrigerant at the lower part. An opening for piping is arranged, an inner cover that collides the outside air taken in from the cooling inlet is arranged between the cooling inlet and the inlet, and the inside of the electrical cover is connected to the cooling inlet The partition plate that partitions the upper part with the opening and the lower part with the opening is arranged so as to contact the inner surface of the electrical cover, and a storage area for storing water is formed in the area surrounded by the upper surface of the partition plate, the electrical cover, and the side surface of the main body And collected in the storage area on the partition plate Drain hole for draining is provided.

  The partition plate is inclined downward toward the drain hole.

  Further, a rib having a surface facing the drain hole above the partition plate is provided on the inner surface of the electrical cover.

  Alternatively, an air conditioner including an outdoor unit having an electrical component box therein, wherein an introduction port for introducing outside air into the electrical component box is provided on a side surface of the main unit of the outdoor unit, and an electrical component is provided on the side surface of the main unit. The cover is arranged so as to cover the inlet, the electrical cover is provided with a cooling inlet for taking in air introduced into the inlet at the upper part, and an opening for passing refrigerant piping at the lower part for cooling. An inner cover that collides the outside air taken in from the cooling inlet is arranged between the inlet and the inlet, and partitions the interior of the electrical cover into an upper part with the cooling inlet and a lower part with the opening Is disposed in contact with the inner surface of the electrical cover, and a storage region for storing water is formed in a region surrounded by the upper surface of the partition plate, the electrical component cover, and the side surface of the main body. There is a drain hole for draining the accumulated water. Eclipsed.

  The partition plate is inclined downward toward the drain hole.

  Further, the inner cover is attached to the electrical cover.

  According to the air conditioner as described above, since the outside air containing rainwater taken in from the opening for passing the refrigerant pipe is blocked by the partition plate, the electrical components in the electrical component box may be damaged by rainwater. Can be eliminated.

It is the perspective view which showed the air conditioner of Embodiment 1 schematically. 1 is an exploded perspective view schematically showing an appearance of an outdoor unit according to Embodiment 1. FIG. It is a figure when the electrical equipment cover of Embodiment 1 is seen from the outdoor unit main body side. It is a figure when the electrical equipment cover of Embodiment 1 is seen from the back surface of FIG. It is sectional drawing of the cutting line BB in FIG. It is sectional drawing of the cutting line CC in FIG. It is principal part sectional drawing when the outdoor unit of Embodiment 1 is cut | disconnected by cutting line AA. It is the perspective view which showed the electrical equipment cover of Embodiment 1 from the inner side. It is principal part sectional drawing when the outdoor unit of Embodiment 2 is cut | disconnected by cutting line AA.

  Embodiments of an air conditioner according to the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a perspective view showing an air conditioner 1 including an outdoor unit 10 and an indoor unit 20 according to Embodiment 1 of the present invention. The lateral direction of the outdoor unit 10 is defined as the X direction, the depth direction is defined as the Y direction, and the height direction is defined as the Z direction. The X direction, the Y direction, and the Z direction are commonly used in all the drawings. FIG. 2 is an exploded perspective view of the outdoor unit 10 with the electrical cover 200 removed from the outdoor unit body 100. FIG. 3 is a diagram when the electrical cover 200 is viewed from the outdoor unit main body 100 side. 4 is a view of the electrical cover 200 when the electrical cover 200 of FIG. 3 is viewed from the back. 5 is a cross-sectional view of the electrical cover 200 when cut along the cutting line BB shown in FIG. 6 is a cross-sectional view of the electrical cover 200 when cut along the cutting line CC shown in FIG. FIG. 7 is a cross-sectional view of the main part when the outdoor unit 10 is cut along the cutting line AA of FIG. In addition, a thick line arrow shows the flow of air, and a dotted line arrow shows the flow of rainwater. FIG. 8 is a perspective view when the electrical cover 200 is viewed from the outdoor unit main body 100 side.

  In the air conditioner 1 of Embodiment 1 of the present invention, as shown in FIG. 1, an outdoor unit 10 installed outdoors and an indoor unit 20 installed indoors are connected by a refrigerant pipe 30. The outdoor unit main body 100 of the outdoor unit 10 has a box-like appearance as shown in FIG. An electrical component cover 200 is attached to the right side surface 101 of the outdoor unit main body 100. As shown in FIG. 7, the outdoor unit main body 100 is provided with a partition wall 170 therein, and by this partition wall 170, the machine room 110 on the right side 101 side to which the electrical cover 200 is attached and the heat on the left side 103 side. It is partitioned into an exchange chamber 120. The heat exchange chamber 120 is provided with an outdoor heat exchanger and an outdoor blower fan (not shown). A water flow hole 160 is provided in the bottom plate 150 of the outdoor unit main body 100 for allowing condensed water generated in an outdoor heat exchanger (not shown) to flow outside the outdoor unit main body 100. A compressor (not shown) or the like is provided at the lower part of the machine room 110, and an electrical component box 130 for storing electrical components (not shown) is provided at the upper part. An inlet 131 for introducing outside air into the electrical component box 130 is provided on the right side surface 101 of the outdoor unit main body 100.

  The electrical cover 200 is attached to the right side surface 101 of the outdoor unit main body 100. As shown in FIGS. 4 and 5, the electrical cover 200 has a shape that is longer in the Z direction than in the Y direction. As shown in FIG. 1, the length of the electrical cover 200 in the Z direction is substantially the same as the length of the right side surface 101 of the outdoor unit main body 100 in the Z direction, and the length of the electrical cover 200 in the Y direction is the outdoor unit main body 100. Is shorter than the length of the right side surface 101 in the Y direction. 2 is provided with an operation valve (not shown). In order to connect the refrigerant pipe 30 to the operation valve, a refrigerant pipe is provided on the lower side of the electrical cover 200 as shown in FIG. An opening 240 for inserting 30 is provided. Therefore, the lower side of the electrical cover 200 swells in the X direction compared to the upper side.

  As shown in FIG. 4, a cooling suction port 211 made up of a plurality of rectangular holes for circulating outside air and taking outside air into the inside cover 200 is provided at the upper part of the electrical cover 200. As shown in FIGS. 3, 5, and 6, between the upper side where the cooling suction port 211 is provided and the lower side where the opening 240 is provided, the interior of the electrical cover 200 is located on the upper side. And a partition plate 230 for partitioning to the lower side. A storage region 250 in which water is stored is formed in a region surrounded by the upper surface of the partition plate 230, the inner surface 202 of the electrical equipment cover 200, and the right side surface 101 of the outdoor unit main body 100. In order to drain the water accumulated in the storage region 250, drain holes 231a and 231b are provided at both ends of the partition plate 230 in the Y direction. Further, the partition plate 230 is inclined downward from the center of the partition plate 230 toward the drain holes 231a and 231b at both ends of the partition plate 230 so that water can easily flow toward the drain holes 231a and 231b. Yes. Two ribs 212 raised from the inner side surfaces 202a and 202b of the electrical cover 200 are provided above the partition plate 230 at positions facing the drain holes 231a and 231b so as to have surfaces facing the drain holes. It has been. In addition, as shown in FIG. 6, a cable passage hole 232 for passing an electrical cable (not shown) connected to the electrical component box 130 at the center in the Y direction on the side contacting the right side surface 101 of the outdoor unit body 100 of the partition plate 230. Is provided. The cable passage hole 232 is configured such that air does not flow by filling a gap with the cable with a sealing material. For convenience, the description of the bottom surface of the electrical cover 200 below the cable passage hole 232 is omitted.

As shown in FIGS. 3 and 5, the inner cover 220 is covered by the electrical cover 200, and is between the cooling inlet 211 of the electrical cover 200 and the inlet 131 in the electrical component box 130 of the outdoor unit main body 100. Placed in. The inner cover 220 is formed long in the Z direction, the lowermost end 220a in the Z direction of the inner cover 220 is lower than the lowermost end 211a in the Z direction of the cooling suction port 211 in the electrical cover 200, and the introduction port The length of the inner cover 220 in the Z direction is adjusted to be lower than 131 and higher than the partition plate 230. The Y direction of the inner cover 220 may be larger than the width of the inlet 131 and the cooling inlet 211. As shown in FIG. 8, both sides 220a and 220b of the inner cover 220 are fixed to the inner side surfaces 202a and 202b of the electrical equipment cover 200, respectively. The inner cover 220 has an upper surface 220c so that outside air taken in from the cooling inlet 211 does not flow into the inlet 131 from above the inner cover 220.

  In the electrical cover 200 described above, a case where outside air including rainwater is taken in from the cooling inlet 211 in the electrical cover 200 in the rain will be described with reference to FIG. A ventilation passage (not shown) connected to the heat exchange chamber 120 is provided on the heat exchange chamber 120 side of the electrical component box 130, and when an outdoor blower fan (not shown) is driven, the outside air is exchanged via the electrical component box 130. An air flow sucking into the air is generated. Due to this airflow, outside air including rainwater outside the outdoor unit 10 is taken into the electrical cover 200 from the cooling inlet 211 in the electrical cover 200. The outside air taken in from the cooling inlet 211 collides with the inner cover 220 and is separated into air and rainwater. The separated air flow is represented by a thick line, and the separated rainwater flow is represented by a dotted line. The air separated by the inner cover 220 flows downward through the first air passage 310 formed between the inner cover 220 and the electrical component cover 200. The air that flows downward flows through the second air passage 320 formed by the inner cover 220 and the partition plate 230. The air that has passed through the second air passage 320 flows upward through the third air passage 330 formed between the inner cover 220 and the right side surface 101 of the outdoor unit main body 100. The air that flows upward flows into the electrical component box 130 from the inlet 131. Accordingly, it is possible to cool the electrical components such as capacitors and coils (not shown) in the electrical component box 130 with air containing no rainwater without getting wet with the rainwater.

  On the other hand, rainwater separated by the inner cover 220 flows down to the storage area 250 on the upper surface of the partition plate 230 through the inner cover 220 and the electrical cover 200. Rainwater that has flowed down to the storage region 250 flows along the inclination of the partition plate 230 and is guided to the drain holes 231a and 231b. The rainwater guided to the drain holes 231a and 231b passes through the drain holes 231a and 231b and flows into the lower part of the electrical cover 200. Rainwater that has flowed into the lower part of the electrical cover 200 flows down through the electrical cover 200 or the right side surface 101 and flows into the bottom plate 150 of the outdoor unit main body 100 through the outflow hole 201 in the bottom surface of the electrical cover 200. The rainwater flowing into the bottom plate 150 flows along the bottom plate 150 and is drained out of the outdoor unit main body 100 through the water passage hole 160.

  Note that the outside air including rainwater taken in from the opening 240 (see FIG. 5) on the lower side of the electrical cover 200 has a path to the inlet 131 blocked by the partition plate 230, so Not flowing. In addition, if outside air containing rainwater flows into the upper part of the electrical cover 200 through the drain holes 231a and 231b, the rain water is discharged by colliding with the ribs 212 above the drain holes 231a and 231b. Contained outside air is separated into air and rainwater. Therefore, since the outside air containing rainwater cannot flow upward by the partition plate 230 and the rib 212, the outside air containing rainwater can be prevented from flowing into the electrical component box 130.

  As described above, in the outdoor unit 10 according to the first embodiment of the present invention, the outside air containing rainwater is blocked by the partition plate 230 and the rib 212 when it rains, so that it can be prevented from flowing into the electrical component box 130 and the partition. The water accumulated on the upper surface of the plate 230 can be drained from drain holes 231a and 231b provided in the partition plate 230.

(Embodiment 2)
As shown in FIG. 9, the outdoor unit 10 according to the second embodiment of the present invention is the same as the first embodiment except for the partition plate 234 and the drain hole 102. Therefore, descriptions other than the partition plate 234 and the drain hole 102 are omitted. FIG. 9 is a cross-sectional view of the main part when the outdoor unit 10 is cut along the cutting line AA of FIG. In addition, a thick line arrow shows the flow of air, and a dotted line arrow shows the flow of rainwater.

  In the second embodiment, as shown in FIG. 9, in order to drain the water accumulated in the storage region 250 formed on the upper surface of the partition plate 234, the right side surface 101 of the outdoor unit main body 100 in contact with the storage region 250 is A drain hole 102 is provided. Further, the partition plate 234 is inclined downward toward the drain hole 102, that is, the outdoor unit main body 100.

  In the electrical cover 200 described above, a case where outside air containing rainwater is taken in from the cooling inlet 211 in the electrical cover 200 in the rain will be described with reference to FIG. Outside air including rainwater outside the outdoor unit 10 is taken into the electrical cover 200 from a cooling inlet 211 in the electrical cover 200. The outside air containing rainwater taken in from the cooling inlet 211 collides with the inner cover 220 and is separated into air and rainwater. The separated air flow is represented by a thick line, and the separated rainwater flow is represented by a dotted line. The separated air flows into the inlet 131 in the electrical component box 130 as in the first embodiment. On the other hand, the separated rainwater flows down to the partition plate 234, then flows along the inclination of the partition plate 234, and is guided to the drain hole 102 in the right side surface 101 of the outdoor unit main body 100. The rainwater guided to the drain hole 102 passes through the drain hole 102 and flows into the machine room 110 of the outdoor unit main body 100. Rainwater flowing into the machine room 110 flows down to the bottom plate 150 of the outdoor unit main body 100 along the wall of the machine room 110. The rainwater that has flowed down to the bottom plate 150 flows along the bottom plate 150 and is drained out of the outdoor unit main body 100 through the water passage hole 160. Further, the outside air including rainwater taken in from the opening 240 on the lower side of the electrical cover 200 does not flow upward due to the partition plate 234.

  As described above, in the outdoor unit 10 according to the second embodiment of the present invention, the outside air containing rainwater is blocked by the partition plate 234 when it rains, so that it can be prevented from flowing into the electrical component box 130 and the partition plate 234 The water accumulated on the upper surface can be drained from a drain hole 102 provided on the right side surface 101 of the outdoor unit main body 100.

  According to the above air conditioner, it is possible to prevent outside air containing rainwater from flowing into the electrical component box. Furthermore, the water separated by the inner cover and falling to the partition plate and collected on the upper surface of the partition plate can be drained by providing a drain hole in the partition plate. Alternatively, by providing a drain hole on the right side of the outdoor unit body, outside air taken in from the opening on the lower side of the electrical cover is collected on the upper surface of the partition plate without flowing into the upper side of the electrical cover. Water can be drained.

  In Embodiments 1 and 2, an electrical cover, electrical component box, refrigerant pipe connection port, and the like are provided on the right side surface of the outdoor unit body. However, the present invention is not limited to this, and the electrical equipment is provided on the left side surface. A cover, an electrical component box, a refrigerant pipe connection port, or the like may be provided. In Embodiments 1 and 2, the inner cover is fixed by being fitted into the inner surface of the electrical cover, but the present invention is not limited to this, and the inner cover is attached to the right side surface of the outdoor unit main body. May be fixed.

DESCRIPTION OF SYMBOLS 1 Air conditioner 10 Outdoor unit 20 Indoor unit 30 Refrigerant piping 100 Outdoor unit main body 101 Right side surface 102 Drain hole 200 Electrical cover 220 Inner cover 230 Partition plate 231a, 231b Drain hole 234 Partition plate

Claims (6)

An air conditioner including an outdoor unit having an electrical component box inside,
An introduction port for introducing outside air into the electrical component box is provided on the side surface of the main body of the outdoor unit,
An electrical cover is disposed on the side surface of the main body so as to cover the inlet,
The electrical cover has a cooling inlet for taking in air to be introduced into the inlet at the upper part, and an opening for passing refrigerant piping at the lower part.
Between the cooling inlet and the inlet, an inner cover that collides the outside air taken in from the cooling inlet is disposed,
A partition plate that divides the interior of the electrical cover into an upper part with the cooling inlet and a lower part with the opening is arranged so as to contact the inner surface of the electrical cover,
A storage region for storing water is formed in a region surrounded by the upper surface of the partition plate, the electrical cover, and the side surface of the main body,
An air conditioner characterized in that the partition plate is provided with a drain hole for draining water accumulated in the storage region.   The air conditioner according to claim 1, wherein the partition plate is inclined downward toward the drain hole.   The air conditioner according to claim 1 or 2, wherein a rib having a surface facing the drain hole is provided above the partition plate. An air conditioner including an outdoor unit having an electrical component box inside,
An introduction port for introducing outside air into the electrical component box is provided on the side surface of the main body of the outdoor unit,
An electrical cover is disposed on the side surface of the main body so as to cover the inlet,
The electrical cover has a cooling inlet for taking in air to be introduced into the inlet at the upper part, and an opening for passing refrigerant piping at the lower part.
Between the cooling inlet and the inlet, an inner cover that collides the outside air taken in from the cooling inlet is disposed,
A partition plate that divides the interior of the electrical cover into an upper part with the cooling inlet and a lower part with the opening is arranged so as to contact the inner surface of the electrical cover,
A storage region for storing water is formed in a region surrounded by the upper surface of the partition plate, the electrical cover, and the side surface of the main body,
An air conditioner characterized in that a drainage hole for draining water accumulated in the storage area is provided on a side surface of the main body of the outdoor unit.   The air conditioner according to claim 4, wherein the partition plate is inclined downward toward the drain hole.   The air conditioner according to any one of claims 1 to 4, wherein the inner cover is attached to the electrical cover.

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