JP6197998B2 - Air conditioner outdoor unit - Google Patents

Description

  The present invention relates to an outdoor unit of an air conditioner, and more particularly to a technique for preventing water from entering into an electrical component unit provided in the outdoor unit.

  An outdoor unit of an air conditioner usually has a floor panel panel installed on the ground, a veranda, or the like, and the inside of the housing is provided with a heat exchanger and a partition plate installed substantially vertically from the floor panel panel. It is divided into a blower chamber including a blower fan and a machine chamber including a compressor and an electrical component unit (see, for example, FIG. 3 of Patent Document 1 in particular).

  The front surface of the blower chamber is covered with the blower panel of the blower fan. Further, an L-shaped heat exchanger is disposed in the blower chamber from the side surface to the back surface, and a protection grill formed in a bar shape is disposed so as to surround the heat exchanger.

  The machine room is covered with a service panel attached to the front surface so that it can be opened and closed for maintenance, and is covered with a side panel from the side surface to the back surface. Furthermore, the box-shaped housing | casing is formed by covering the upper surface of a fan room and a machine room with a ceiling panel.

  By arranging the blower panel side blow-out panel and the machine room side service panel on the front side of the casing, a front panel covering the front side of the casing is formed. A part of the partition plate is provided with a panel support part, and the end part of the blowout panel and the end part of the service panel are supported in an overlapped manner along the panel support part. Yes.

  By the way, in the electrical component unit, electrical components such as an electrical component for driving the outdoor unit, a circuit board, and a power supply unit are provided. Since these electrical components are vulnerable to water, in many cases including Patent Document 1, in order to protect the electrical components from water, the compressor and its piping are arranged on the lower side of the machine room, and the electrical components are placed on the upper side. It is arranged and a water shielding sheet is provided on the back surface of the ceiling panel.

  However, during a storm such as a typhoon, if a large amount of water enters the blower room from the heat exchanger or the air blowing grill of the blower fan and is stirred by the blower fan, the panel support part of the partition plate and the end part of the front panel Water may enter the electrical component unit through the gap between the mating surfaces of the two, adversely affecting the electrical component, and in the worst case, the electrical component may fail.

JP2012-159225A

  Accordingly, an object of the present invention is to provide an air conditioner outdoor unit in which the inside of the casing is partitioned by a partition plate into a fan room and a machine room including an electrical component unit. This is to prevent water from entering the product unit.

In order to solve the above-described problems , the present invention includes a housing and a heat exchanger and a blower fan through a partition plate standing inside the housing, and a blow-out panel on the front side of the blower fan. Is divided into a blower chamber in which a compressor is located in the lower part and an electrical component unit is located in the upper part, and a service room is arranged on the front side of the compressor. A panel support unit that is bent along the front surface of the housing is provided , and one end of the blowout panel is overlapped on the support surface of the panel support unit to form a mating surface. In outdoor unit,
The blowout panel protrudes toward the inside of the housing so as to close the blower chamber side of the mating surface , and shields water from entering water into the machine chamber from the blower chamber Is provided.

In the present invention, a flange portion that is disposed along the support surface of the panel support portion and overlaps with the support surface to form the mating surface is formed at one end portion of the blowout panel. plate, embodiments are projected toward the proximal end or al the housing of the flange portion such that a space is formed on the blower chamber side which is closed by the impermeable plate also included.

  Furthermore, the aspect which the said water-shielding board is longer than the dimension of the height direction of the said electrical component unit, and is arrange | positioned at the said fan chamber side of the position corresponding to the said electrical component unit is also contained.

  According to this, by providing a water shielding plate on the blowout panel, the water in the blower room enters the electrical component unit through the mating surface of the panel support portion of the partition plate and the flange portion of the blowout panel during a storm. Even if you try to do so, it will be blocked by hitting the water blocking plate. In addition, even if there is water that exceeds the water shielding plate, the momentum is suppressed by hitting the water shielding plate, the water that lost the momentum does not reach the mating surface, it can not penetrate from the mating surface, Water can be prevented from entering the electrical component unit.

The front side perspective view of the outdoor unit of the air conditioner which concerns on one Embodiment of this invention. The back side perspective view which shows the internal structure of the said outdoor unit. The back side perspective view of the blowing panel of the said outdoor unit. The fragmentary sectional view around the partition plate of the outdoor unit. The partial expanded sectional view which expanded the panel support part of the said partition plate.

  Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto.

  As shown in FIG. 1, the outdoor unit 1 of this air conditioner includes a three-dimensional rectangular housing 1A. The casing 1A includes a floor panel 10 provided with legs 11 for installation on the ground, a veranda, the like, a front panel 12 standing vertically along the front side of the floor panel 10, and one side surface (FIG. 1 includes a side panel 13 erected so as to cover a part from the right side surface to the back surface, and a ceiling panel 14 attached so as to cover the ceiling surface.

  In FIG. 1, the surface with the front panel 12 of the outdoor unit 1 is the front surface, the opposite surface is the back surface, the surface with the ceiling panel 14 is the top surface, the surface with the floor panel 10 is the bottom surface, and the side panel 13 In the following description, a certain side surface is the right side surface and the opposite side of the right side surface is the left side surface. The internal parts will be described in the same manner.

  As shown in FIG. 2, the interior of the housing 1 </ b> A is partitioned into a blower chamber FC and a machine chamber MC via a partition plate 2. The blower room FC is located on the left side of the housing 1A, and the machine room MC is located on the right side. The front panel 12 includes a blowout panel 12A disposed on the front surface on the blower room FC side and a service panel 12B disposed on the front surface on the machine room MC side, and a right end portion 12A1 that is one end portion of the blowout panel 12A; The above-mentioned front panel 12 that covers the front side of the housing is formed by combining the left end portions 12B1, which are one end portions of the service panel 12B, so as to overlap each other in a panel support portion 21 described later of the partition plate 2. It has become.

  The blower chamber FC includes a heat exchanger 31 and a blower fan 32, and the blower fan 32 is disposed on the left side of the front surface of the housing 1A. The heat exchanger 31 is arranged in an L shape from the left side surface to the back surface of the housing 1A.

  The blower fan 32 is driven by a drive motor (not shown), and by driving the blower fan 32, the air sucked into the heat exchanger 31 and heat-exchanged with the refrigerant is discharged from the blower outlet 121 of the blowout panel 12A to the outside of the housing. Exhausted.

  The machine room MC has a compressor 41, a receiver tank 42 and its piping (not shown) in the lower part, and an electrical component unit in which circuit boards and electrical parts necessary for driving the outdoor unit 1 are housed in the upper part. 5 is provided.

  In the present invention, the specific configuration of the heat exchanger 31, the blower fan 32, the compressor 41, the receiver tank 42, and piping thereof may be arbitrary, and the description thereof is omitted.

  As shown in FIG. 3, the blowout panel 12 </ b> A is a synthetic resin molded product having a blowout port 121 in the center, and a bell mouth 122 protruding so as to surround the blowout port 121 is integrally formed on the inner surface side thereof. Is formed. On the front side of the blowout panel 12A, a blowout grill 123 for preventing the insertion of fingers is attached to the blowout port 121 shown in FIG. The blowout grill 123 may be integrated with the blowout panel 12A or may be separate.

  The left end 12A2 of the blow-out panel 12A is bent at approximately 90 °, and a protection grill (not shown) that protects the heat exchanger is locked. A flange portion 124 that abuts along the partition plate 2 is provided at the right end 12 </ b> A <b> 1 of the blowout panel 12.

  As shown in FIG. 5, the flange portion 124 extends from the side surface of the right end portion 12A1 of the blowout panel 12A substantially in parallel with the front surface of the blowout panel 12A, and the upper end (in FIG. 3) of the right end portion 12A1 of the blowout panel 12A. It extends from the upper end to the lower end (the lower end in FIG. 3) with substantially the same width.

  On the side surface of the right end portion 12A1 of the blowout panel 12A, a base end portion 124A of the flange portion 124 is provided with a water shielding plate 124B separately from the flange portion 124. The water shielding plate 124B is erected substantially vertically from the base end portion 124A into the housing 1A, and is formed at about 2/3 of the distance from the upper end to the lower end of the blowout panel 12A from the upper end to the lower end. Has been.

  In this embodiment, it is preferable that the water shielding plate 124 </ b> B is formed longer than at least the dimension in the height direction of the electrical component unit 5 disposed on the upper side of the partition plate 2. According to this, by forming the length of the water shielding plate 124 </ b> B longer than the height of the electrical component unit 5, at least water can be prevented from entering the electrical component unit 5.

As shown in FIG. 1, the service panel 12 </ b> B is formed by pressing a metal plate, and is formed in an L-shaped cross section that covers from the front surface of the machine room MC to a part of the right side surface. In this embodiment, the service panel 12B includes a service panel 126 that is opened and closed when the inside of the machine room MC is maintained, and a piping panel 127 from which piping such as a refrigerant connection valve is drawn.
As shown in FIG. 5, the left end 12B1 of the service panel 12B includes a bent piece 12B2 bent toward the inner surface side.

  As shown in FIG. 1, the side panel 13 is also formed by pressing a metal plate, and is formed in an L-shaped cross section that covers from the side surface to the back surface of the machine room MC. In the present invention, the specific configurations of the service panel 12B and the side panel 13 may be arbitrary.

  The partition plate 2 is a molded product of a highly rigid metal plate, and is erected almost vertically from the floor panel 10 to the ceiling panel 14 in the height direction. The partition plate 2 is slanted from the front side to the back side in the depth direction of the housing 1 in the depth direction.

  As shown in FIG. 2, an electrical component unit 5 is disposed on the partition plate 2 on the machine room MC side so as not to get wet with water.

  As shown in FIG. 4, an air passage 61 that actively cools heat generating electrical components (not shown) such as a reactor and a power module of the electrical component unit 5 is further formed on the machine room MC side of the partition plate 2. A ventilation duct 6 is provided. In this embodiment, the ventilation duct 6 has two ventilation paths 61a and 61b with a rib 62 formed in the center.

  In part of the partition plate 2 facing the electrical component unit 5, the air that has entered the machine room MC from the suction holes 16 of the side panel 13 due to the negative pressure generated by the operation of the blower fan 32 is generated in the heat generating electrical component. An air vent 20 is provided that forms a vent path for cooling the air and flowing into the blower chamber FC side.

  In this embodiment, two vent holes 20 a and 20 b are provided as the vent holes 20, and are opened toward the electrical component unit 5. The vents 20a and 20b are arranged side by side on the left and right sides, and each has a rectangular hole. When there is no need to distinguish between the vents 20a and 20b, the vents 20 are collectively referred to.

  A water shielding box 7 for preventing water from entering the electrical component unit 5 from the blower chamber FC side is provided on the blower chamber FC side of the partition plate 2 across the vent holes 20a and 20b. In the present invention, the specific configuration of the impermeable box 7 may be arbitrary, and the description thereof is omitted.

  The rear side end (lower in FIG. 4) of the partition plate 2 engages with the side plate (not shown) of the heat exchanger, and the front end (upper in FIG. 4) of the partition plate 2 is the right end portion of the blowing panel 12A. A panel support portion 21 that abuts 12A1 is provided. The panel support portion 21 is bent from one end of the partition plate 2 toward the blower chamber FC side, and is bent by approximately 90 ° from the other end side of the base end portion 211, and the center is formed in a dogleg shape. A bent first abutting portion 212 and a second abutting portion 213 that is bent at an obtuse angle from the other end of the first abutting portion 212 and has a support surface 21A that supports the flange portion 124 of the blowing panel 12A. ing.

  As shown in FIG. 5, the support surface 21A of the second contact portion 213 of the panel support portion 21 is disposed so as to be substantially parallel along the front surface of the housing 1, and along the support surface 21A. The flange portion 124 of the blowout panel 12A is overlapped to form the mating surface 8 by the support surface 21A and the flange portion 124. And the support surface 21A and the flange part 124 are fixed with the screw | thread 9 in multiple places by the mating surface 8, and the partition plate 2 and the blowing panel 12A are fixed. 21 A of support surfaces and the flange part 124 are firmly fixed, and the penetration | invasion of the water from the fan room FC side to the machine room MC side is suppressed.

  Further, the service panel 12B is disposed on the front surface of the flange portion 124, and the bent piece 12B2 of the service panel 12B and the proximal end portion 124A of the flange portion 124 abut. Since the service panel 12B needs to be removed at the time of maintenance, the floor panel 10 and the ceiling panel 14 are screwed.

  The water shielding plate 124 </ b> B formed at the base end portion 124 </ b> A of the flange portion 124 is disposed so as to protrude toward the first contact portion 212 of the panel support portion 21 so as to close the mating surface 8. With this configuration, water in the blower chamber FC is stirred by the blower fan during a storm or the like, and even if it tries to enter the electrical component unit 5, it is blocked by hitting the water shielding plate 124B.

In FIG. 5, the water shielding plate 124 </ b> B is disposed such that the tip thereof is in a state where a slight gap S is provided from the first contact portion 212, but this prevents chatter noise due to vibration of the outdoor unit 1. Because.
A space K is formed by the flange portion 124, the first contact portion 212 of the panel support portion 21, and the water shielding plate 124B. Further, the water shielding plate 124B protrudes from the base end portion 124A of the flange portion 124. However, the water shielding plate 124B is not limited to this and may be on the fan chamber FC side with respect to the mating surface 8 of the flange portion 124, and the space K is a little. However, it may be provided. With this configuration, even if there is water that has entered the gap S from the water shielding plate 124B, the momentum is suppressed by hitting the water shielding plate, and the water that has lost the momentum stays in the space K and reaches the mating surface 8. Therefore, it is impossible to enter from the mating surface 8, and water can be prevented from entering the electrical component unit 5.

  As described above, according to the present invention, by providing the blowout panel 12A with the water shielding plate 124B, the water in the blower chamber FC is allowed to flow between the panel support portion 21 of the partition plate 2 and the blowout panel 12A during a storm. Even if an attempt is made to enter the electrical component unit 5 through the mating surface 8 of the flange portion 124, the water is blocked by hitting the water shielding plate 124B. Moreover, even if there is water exceeding the water shielding plate 124B, the momentum is suppressed by hitting the water shielding plate 124B, and the lost water stays in the space K and does not reach the mating surface 8, but the mating surface. 8 can no longer enter, and water can be prevented from entering the electrical component unit 5.

1 Air conditioner (outdoor unit)
DESCRIPTION OF SYMBOLS 1A Housing | casing 2 Partition plate 21 Panel support part 21A Support surface 212 1st contact part 213 2nd contact part 10 Floor board panel 12 Front panel 12A Outlet panel 12B Service panel 121 Outlet 122 Bellmouth 123 Outlet grille 124 Flange part 124B Water shielding plate 13 Side panel 14 Ceiling panel 31 Heat exchanger 32 Blower fan 8 Matching surface FC Blower room MC Machine room

Claims (3)

A fan chamber including a heat exchanger and a blower fan through a housing and a partition plate standing inside the housing, and a blower panel arranged on the front side of the blower fan, and compressed in the lower part A panel that is divided into a machine room in which an electrical component unit is disposed in the machine and an upper part, a service panel is disposed on the front side of the compressor, and the partition plate is bent along the front surface of the housing In an outdoor unit of an air conditioner in which a support part is provided and one end part of the blowout panel is overlapped on the support surface of the panel support part to form a mating surface,
The blowout panel protrudes toward the inside of the housing so as to close the blower chamber side of the mating surface , and shields water from entering water into the machine chamber from the blower chamber The outdoor unit of the air conditioner characterized by being provided. At one end of the blowout panels, are arranged along the support surface of the panel supporting portion, a flange portion for forming the mating surface polymerized with the supporting surface is formed, the water shield plates, the shield air according to claim 1, characterized in that it protrudes toward the proximal end or al the housing of the flange portion such that a space is formed on the blower chamber side is closed by the water plate Harmonic outdoor unit.   The said water shielding board is formed longer than the dimension of the height direction of the said electrical component unit at least, and is arrange | positioned at the said blower chamber side of the position corresponding to the said electrical component unit. The outdoor unit of the air conditioner described in 2.

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