JP2006017420A - Outdoor unit for air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit for an air conditioner capable of preventing breakage of a fan by preventing icing of the fan due to rain, snow, or the like. <P>SOLUTION: In the outdoor unit 50 for the air conditioner, a heat exchanger 5, a blower 30, and a compressor 2 are housed in a casing 40. The casing 40 is composed by closing a top face, forming an air inlet 9a in a side face upper part, and forming an air outlet 9b in a side face lower part. The blower 30 is composed by providing a bellmouth 16 installed between the air inlet 9a and the air outlet 9b, the fan 1 arranged in a center of the bellmouth 16 so as to suck outdoor air from the air inlet 9a and blow it out from the air outlet 9b, and a motor 4 driving the fan 1. The heat exchanger 5 is arranged in a suction side of the fan 1 in the casing 40 along the air inlet 9a. The compressor 1 is mounted on a bottom face part of the casing 40. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an outdoor unit for an air conditioner, and is particularly suitable for an outdoor unit for an air conditioner in which a heat exchanger, a blower, and a compressor are housed in a casing.

  As this type of conventional outdoor unit for an air conditioner, there is one disclosed in Japanese Patent Laid-Open No. 2001-201111 (Patent Document 1). In this outdoor unit for an air conditioner, a suction port is formed in the upper part of the four side surfaces of a rectangular parallelepiped housing, and a blower is installed in an opening serving as a blowout port on the upper surface of the housing. A heat exchanger formed in a flat square shape is installed on the suction side of the blower and along the suction ports on the four side surfaces of the housing. The blower device includes a bell mouth attached to the upper opening of the housing, and a propeller fan disposed in the center of the bell mouth. The compressor is disposed in a space partitioned below the heat exchanger. According to this outdoor unit for an air conditioner, since the heat exchanger is installed along the suction ports on the four side surfaces of the casing, it is difficult for drift to occur in the casing, and the noise of the propeller fan and the propeller fan Input can be reduced.

JP 2001-201111 A

  However, in the conventional air-conditioning outdoor unit described above, since it is an upper blowing type equipped with a propeller fan, rain or snow in a cold environment such as winter adheres to the propeller fan, and these are In some cases, the surface was partially frozen to cause rotational imbalance, and the propeller fan was damaged. Therefore, it is necessary to provide rain and snow protection equipment to prevent rain and snow from adhering to the propeller fan. However, the cover provided on the blowout side of the propeller fan will provide sufficient rain and snow protection. There was a problem that it was difficult.

  In addition, in the conventional outdoor unit for an air conditioner described above, since all the devices are arranged in one housing, a large heat exchanger has a large volume and a heavy weight. There was a problem that the installation work was troublesome.

  Furthermore, although it is disclosed that the above-described conventional outdoor unit for an air conditioner is provided with a heat exchanger along the suction ports on the four side surfaces of the housing, the heat exchange capability is further increased. Is not disclosed.

  An object of the present invention is to provide a highly reliable outdoor unit for an air conditioner that can prevent the fan from icing due to rain, snow, or the like, thereby preventing the fan from being damaged.

  Another object of the present invention is to provide an outdoor unit for an air conditioner that can be easily installed and transported while being highly reliable and capable of preventing the fan from being frozen by rain or snow. There is to do.

  Still another object of the present invention is to increase the heat exchanging capacity without increasing the size of the housing while preventing the fan from icing due to rain, snow, etc. and preventing the fan from being damaged. An object of the present invention is to provide an outdoor unit for an air conditioner.

  In order to achieve the above object, according to a first aspect of the present invention, there is provided an outdoor unit for an air conditioner in which a heat exchanger, a blower, and a compressor are housed in a housing, wherein the housing closes an upper surface, An air inlet is formed in the upper part of the side surface, and an air outlet is formed in the lower part of the side surface. The air blower is configured to be configured between a bell mouth installed between the air inlet and the air outlet, and outdoor air. A fan disposed in the center of the bell mouth so as to blow out from the outlet, and a motor for driving the fan, wherein the heat exchanger is on the suction side of the fan in the housing and the suction It is arranged along the mouth, and the compressor is mounted on the bottom surface of the casing.

A more preferable specific configuration in the first aspect of the present invention is as follows.
(1) The casing is configured by a rectangular parallelepiped frame structure including a metal frame forming a skeleton of a rectangular parallelepiped and an outer plate attached to the frame so as to form an outer surface of the rectangular parallelepiped, and an upper surface of the casing The outer plate constituting the bottom surface is made of a metal plate, and the outer plate constituting the front, rear, left, and right side surfaces of the housing is formed with the suction port at the upper part of the four side surfaces and the outlet port at the lower part of the four side surfaces. Is formed.
(2) The fan is composed of an axial fan that sucks outdoor air from above and blows it downward.
An auxiliary air outlet is formed at the center of the bottom surface of the housing, and the compressor, the motor, and electrical equipment for controlling these are mounted.

  In order to achieve another object described above, the second aspect of the present invention includes a first outdoor unit in which a first heat exchanger, a first blower, and a compressor are housed in a first housing, and a second heat. The exchanger and the second air blower are housed in a second housing and include a second outdoor unit mounted on the upper surface of the first outdoor unit, and the first housing forms a first suction port on an upper side surface. The first air blower is configured to form a first bell mouth installed between the first air inlet and the first air outlet, and outdoor air. A first fan disposed in the center of the first bell mouth so as to suck in from the first suction port and blow out from the first outlet, and a first motor for driving the first fan, The heat exchanger is arranged on the suction side of the first fan in the first housing and along the first suction port. The compressor is mounted on the bottom surface of the first housing, the second housing closes the top surface, forms a second suction port at the upper side, and forms a second outlet at the lower side. The second blower is configured by the second bell mouth installed between the second suction port and the second blow-out port, and sucks outdoor air from the second suction port into the second blow-out device. A second fan disposed in the center of the second bell mouth so as to blow out from the mouth; and a second motor for driving the second fan, wherein the second heat exchanger is provided in the second casing. It is set as the structure arrange | positioned along the said 2nd suction inlet on the suction side of a 2nd fan.

A more preferable specific configuration in the second aspect of the present invention is as follows.
(1) The first casing includes a metal first frame forming a skeleton of a rectangular parallelepiped, and a first outer plate attached to the first frame so as to form at least four side surfaces and a bottom surface of the rectangular parallelepiped. The first outer plate is a rectangular parallelepiped frame structure, the first outer plate that constitutes the bottom surface of the first housing is a metal plate, and the first outer plate that constitutes the front, rear, left and right four side surfaces of the first housing is the four side surfaces. The first suction port is formed in the upper part, the first outlet is formed in the lower part of the four side surfaces, and the second casing includes a metal second frame forming a cuboid skeleton, and at least four of the cuboids. A rectangular parallelepiped frame structure comprising a second outer plate attached to the second frame so as to form a side surface and an upper surface, and the second outer plate constituting the upper surface of the second housing is constituted by a metal plate. 4 sides of front, back, left and right of the second housing The second outer plate to the bottom of the four sides with the the top of the four sides the second suction opening is formed second blowoff port is formed that.

In order to achieve the further another object described above, the third aspect of the present invention is an outdoor unit for an air conditioner in which a heat exchanger, a blower, and a compressor are housed in a housing.
The casing is configured by closing the upper surface, forming a suction port at the upper side, and forming a blowout port at the lower side.
The air blower includes a bell mouth installed between the suction port and the outlet, and a fan disposed in the center of the bell mouth so as to suck outdoor air from the inlet and blow out from the outlet. And a motor for driving the fan,
The heat exchanger includes an upper heat exchanger disposed on the suction side of the fan in the housing and along the suction port, and a lower heat exchanger disposed on the air downstream side from the upper heat exchanger. With
The compressor is mounted on the bottom surface of the casing.

A more preferable specific configuration in the third aspect of the present invention is as follows.
(1) The casing is configured by a rectangular parallelepiped frame structure including a metal frame forming a skeleton of a rectangular parallelepiped and an outer plate attached to the frame so as to form an outer surface of the rectangular parallelepiped, and an upper surface of the casing The outer plate constituting the bottom surface is made of a metal plate, and the outer plate constituting the front, rear, left, and right side surfaces of the housing is formed with the suction port at the upper part of the four side surfaces and the outlet port at the lower part of the four side surfaces. And the lower heat exchanger is arranged on the blowout side of the fan in the casing and along the blowout port.

  According to the outdoor unit for an air conditioner of the present invention, the fan can be prevented from icing due to rain, snow, or the like, and the fan can be prevented from being damaged.

  In addition, according to the outdoor unit for an air conditioner of the present invention, it is possible to prevent the fan from icing due to rain, snow, etc. to prevent the fan from being damaged, and it is easy to install and transport. It can be.

  Furthermore, according to the outdoor unit for an air conditioner of the present invention, it is possible to prevent the fan from icing due to rain, snow, or the like and to prevent the fan from being damaged, and without increasing the size of the casing. Heat exchange capacity can be increased.

  Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. The same reference numerals in the drawings of the respective embodiments indicate the same or equivalent.

  First, the outdoor unit for air conditioners of 1st Example of this invention is demonstrated using FIG. FIG. 1 is a schematic longitudinal sectional view showing an air conditioner outdoor unit 50 according to a first embodiment of the present invention. This outdoor unit 50 for an air conditioner is used as a relatively large outdoor unit for buildings and the like.

  The air conditioner outdoor unit 50 is configured by housing the heat exchanger 5, the air blower 30, the compressor 2, and electrical components in a housing 40.

  The housing 40 has a rectangular parallelepiped frame structure including a metal frame (not shown) forming a skeleton of a rectangular parallelepiped and outer plates 9 to 11 attached to the frame so as to form an outer surface of the rectangular parallelepiped. The outer plates 9 to 11 include a side casing 9 that constitutes four side surfaces, a top plate 10 that constitutes an upper surface, and a bottom base 11 that constitutes a lower surface.

  The side casing 9 is composed of four metal plates that form the front, rear, left, and right side surfaces. The side casing 9 has a suction port 9a at the top and a blowout port 9b at the bottom. The inlet 9a and the outlet 9b are formed on all four side surfaces. A guard 12 is provided on the outside of the outlet 9b to prevent entry of garbage and small animals.

  The top plate 10 is formed of a single metal plate and is installed so as to substantially close the upper surface of the housing 40. This top plate 10 constitutes a part of the ventilation path by the blower 30.

  The bottom base 11 is formed of a single metal plate, and is mounted with internal devices such as the compressor 2, the blower 30, and electrical equipment, and supports the heat exchanger 5 through a frame.

  The air blower 30 includes a bell mouth 6, an axial fan 5, a motor 4, and an air guide duct 7. The bell mouth 6 is located between the suction port 9 a and the blowout port 9 b and is installed so as to partition the upper and lower spaces together with the fan 5. It is installed inside the side casing 9. The outer periphery of the bell mouth 6 has a shape that matches the inner surface of the side casing 9, and the inner periphery of the bell mouth 6 is a circular shape that is slightly larger than the outer shape of the fan 5. The fan 5 is arranged at the center of the bell mouth 6 so as to suck outdoor air from above in the axial direction and blow it out downward in the axial direction. The outdoor air is sucked in from the suction port 9a and blown out from the blowout port 9b by the rotation of the fan 5. The motor 4 drives the fan 5, is disposed below the fan 5 (on the blowout side of the fan 5), and is mounted on the bottom base 11 via a support base. The air guide duct 7 forms a blow-out ventilation path of the blower 30 together with the bell mouth 6, and the air discharge port 7 a is provided so as to face the blow-out port 9 b formed on the four side surfaces of the side casing 9. .

  The heat exchanger 5 functions as a condenser or an evaporator, and is a plate fin type heat exchanger configured by penetrating a large number of juxtaposed plate fins through a large number of refrigerant pipes, and having a substantially rectangular shape in a plane. Is formed. The heat exchanger 5 is arranged on the suction side of the blower 30 in the housing 40 so as to follow the suction ports 9a on the four side surfaces. Note that the heat exchanger 5 may be formed in a square shape by combining a plurality of heat exchanger portions.

  The compressor 2 constitutes a part of the refrigeration cycle together with the heat exchanger 5 and the indoor equipment cycle equipment, and compresses the refrigerant to circulate in the refrigeration cycle.

  The motor 4, the electrical component, and the compressor 2 are mounted side by side at the center of the bottom base 11. Thereby, the outdoor unit 50 for air conditioners can be installed stably. In addition, the motor 4, the electrical component, and the compressor 2 are disposed in a dead space formed below the air guide duct 7. Thereby, size reduction of the outdoor unit 50 for air conditioners can be achieved.

  In the air conditioner outdoor unit 50 having such a configuration, when the compressor 2 is driven, the refrigerant is compressed and circulates in the refrigeration cycle, and is condensed or evaporated by exchanging heat with outdoor air in the heat exchanger 5. . When the motor 4 is driven and the fan 5 is rotated, the outdoor air is sucked into the fan 5 through the heat exchanger 5 through the heat inlet 9a, blown out from the fan 5 to the blowout air passage, and from the blowout port 9b to the outside. Be blown out.

  Here, the outdoor air is sucked through the suction ports 9a formed on the four surfaces of the side casing 9 and the four surfaces of the heat exchanger 5, and flows to the entire periphery of the fan 5, so that the flow velocity distribution is made uniform. For this reason, the drift in the housing | casing 40 is lose | eliminated and a pressure loss and ventilation noise are reduced. The outdoor air is blown out from the fan 5 through the blowout ports 9 b formed on the four surfaces of the side casing 9. As a result, a large blowout area can be secured, and input reduction and reduction of blowing noise can be achieved by reducing pressure loss. Furthermore, the housing 40 is closed at the top, and the fan 5 is arranged in the center of the bell mouth 6 installed between the suction port 9a at the upper side and the blowout port 9b at the lower side. Thus, the air conditioner outdoor unit 50 with high reliability that can prevent the fan 5 from being frozen and prevent the fan 5 from being damaged can be realized.

  Next, second to eighth embodiments of the present invention will be described with reference to FIGS. FIGS. 2-8 is a block diagram which shows the outdoor unit for air conditioners of the 2nd-8th Example of this invention. The second to eighth embodiments are different from the embodiment to be compared in the following points, and the other points are basically the same as the embodiment to be compared.

  First, the air conditioner outdoor unit 50 of the second embodiment will be described with reference to FIG. The second embodiment is largely different from the first embodiment in that the air conditioner outdoor unit 50 is divided into a first outdoor unit 50A and a second outdoor unit 50B. Since the symbol A is added to the components on the first outdoor unit 50A side and the symbol B is added to the components on the second outdoor unit 50B side, the symbols A and B are ignored, and the first embodiment The same reference numerals are the same or equivalent, and redundant description is omitted as much as possible.

  The outdoor unit 50 for an air conditioner includes a first outdoor unit 50A in which the first heat exchanger 5A, the first blower 30A, and the compressor 2 are housed in the first housing 40A, the second heat exchanger 5B, and the second heat exchanger 5B. And a second outdoor unit 50B in which the second blower 30B is housed in the second housing 40B. The second outdoor unit 50B is mounted on the upper surface of the first outdoor unit 50A.

  40 A of 1st housing | casings are the rectangular parallelepiped frame structures which consist of the metal 1st frame which forms the frame | skeleton of a rectangular parallelepiped, and the 1st outer plate attached to the 1st frame so that the at least 4 side surface and bottom face of a rectangular parallelepiped may be formed. It is configured. And the bottom base 11A which is a 1st outer plate which comprises the bottom face of 40 A of 1st housing | casings is comprised with the metal plate. The first suction port 9Aa is formed at the upper part of the side casing 9A that is the first outer plate constituting the four front, rear, left, and right side surfaces of the first housing 40A, and the first air outlet 9Ab is formed at the lower part of the four side surfaces. Yes.

  Furthermore, the first housing 40A is configured by forming a first suction port 9Aa at the upper part of the four side surfaces and forming a first air outlet 9Ab at the lower part of the four side surfaces. The first blower 30A sucks outdoor air from the first inlet 9Aa and the first bell mouth 16A installed between the first inlet 9Aa and the first outlet 9Ab, and blows it out from the first outlet 9Ab. As described above, the first fan 1A disposed in the center of the first bell mouth 16A and the first motor 4A for driving the first fan 1A are provided. The first heat exchanger 5A is disposed on the suction side of the first fan 1A in the first housing 40A and along the first suction port 1Aa. A plurality of the compressors 2 are provided and mounted on the bottom base 11A of the first housing 40A. Since the electrical product also serves as a support for the first motor 4A, it is possible to reduce the size from this point.

  The second housing 40B has a rectangular parallelepiped frame structure including a second metal frame forming a skeleton of a rectangular parallelepiped and a second outer plate attached to the second frame so as to form at least four side surfaces and an upper surface of the rectangular parallelepiped. It is configured. And the top plate 10B which is the 2nd outer plate which comprises the upper surface of the 2nd housing | casing 40B is comprised with the metal plate. The side casing 9B, which is the second outer plate constituting the four front, rear, left and right side surfaces of the second housing 40B, has a second suction port 9Ba formed in the upper part of the four side surfaces and a second outlet port 9Bb in the lower part of the four side surfaces. Is formed.

  Further, the second housing 40B is configured by closing the upper surface, forming the second suction port 9Ba at the upper part of the four side surfaces, and forming the second outlet port 9Bb at the lower part of the four side surfaces. The second air blower 30B sucks outdoor air from the second air inlet 9Ba and the second air outlet 9Bb from the second bell mouth 16B installed between the second air inlet 9Ba and the second air outlet 9Bb. As described above, the second fan 1B disposed in the center of the second bell mouth 16B and the second motor 4B for driving the second fan 1B are provided. The second heat exchanger 5B is disposed on the suction side of the second fan 1B in the second housing 40B and along the second suction port 9Ba.

  The second casing 40B has a rectangular parallelepiped frame structure similar to that of the first casing 40A. After the first casing 40 is installed at the installation location, the second casing 40B is mounted and installed thereon. Thereafter, the heat exchanger 5A of the first housing 40A and the heat exchanger 5B of the second housing 40B are connected to the compressor 2 disposed on the bottom base 11 of the first housing 40A by a pipe, and a fan. 1B is connected to the electrical component 3 arranged on the bottom base 11 of the first housing 40A.

  According to the second embodiment, the heat transfer area of the heat exchangers 5A and 5B can be increased without increasing the installation area, and the capacity of the heat exchanger can be improved. Even if the heat exchangers 5A and 5B are enlarged, the air conditioner outdoor unit 50 is divided into two outdoor units 50A and 50B, and these outdoor units 50A and 50B are combined in the upper and lower stages. Therefore, it is convenient to transport and carry to the installation location, and a large capacity outdoor unit can be installed in a limited space. Further, since the first housing 40A and the second housing 40B are formed of a rectangular parallelepiped frame structure, they can be combined in two upper and lower stages with sufficient strength.

  Next, the outdoor unit 50 for air conditioners of 3rd Example is demonstrated, referring FIG. The third embodiment is different from the second embodiment in the following points.

  The third embodiment is greatly different from the second embodiment in that the blowers 30A and 30B are centrifugal blowers. The blower 30A is configured to include a fan 5A that sucks outdoor air from the upper side in the axial direction and blows it out in the radial direction, and a bell mouth 6A that forms a suction port of the fan 5A and partitions the upper and lower spaces. It does not have an air duct. The blower 30B includes a fan 5B that sucks outdoor air from the upper side in the axial direction and blows it radially outward, and a bell mouth 6B that forms a suction port for the fan 5B and partitions the upper and lower spaces. Is not equipped with a blower duct.

  According to the third embodiment, there are the basic advantages of the second embodiment, and the use of the centrifugal fans 1A, 1B makes it possible to install air without installing a wind guide duct in the upper and lower air blowers 30A, 30B. Is directly blown from the centrifugal fans 1A and 1B to the four side surfaces, so that a simple structure can be obtained.

  Next, the outdoor unit 50 for air conditioners of 4th Example is demonstrated, referring FIG. The fourth embodiment is different from the first embodiment in the following points.

  In the fourth embodiment, in addition to the upper heat exchanger 5 provided along the suction port 9a, the first embodiment is provided with a heat exchanger 5b provided along the blowout port 9b. It is very different. The lower heat exchanger 5b is provided along the outlets 9b on the four side surfaces, in other words, installed on the outlet ports to the four side surfaces of the air guide duct 7. Pipes are arranged in order from the compressor 2 to the heat exchangers 5b and 5.

  In such a configuration, the outdoor air is uniformly sucked through the upper heat exchanger 5 provided on the four side surfaces by the rotation of the fan 1, and is uniformly blown out through the lower heat exchanger 5b provided on the four side surfaces. Heat is exchanged in each of the heat exchangers 5 and 5b.

  According to the fourth embodiment, under the maximum heat exchange area corresponding to a predetermined size of the outdoor unit 50, the maximum heat exchange capacity can be effectively extracted, and an appropriate air volume corresponding to the capacity can be obtained. The number of rotations of the fan 1 can be reduced, and low noise and high efficiency operation is possible. That is, an outdoor unit for an air conditioner that can increase the heat exchange capability without increasing the size of the housing can be realized.

  Next, the outdoor unit 50 for air conditioners of 5th Example is demonstrated, referring FIG. The fifth embodiment is different from the first embodiment in the following points.

  In the fifth embodiment, in addition to the first heat exchanger 5 provided along the suction port 9a, the second heat exchanger 5c provided in the space between the heat exchanger 5 and the fan 5 is used. Is significantly different from the first embodiment. The second heat exchanger 5 c has a quadrangular pyramid shape as shown in FIGS. 5A and 5B, and is installed facing the upper side on the suction side of the fan 5. Piping is performed in the order of the compressor 2 to the heat exchangers 5c and 5.

  In such a configuration, the outdoor air is uniformly sucked through the first heat exchanger 5 provided on the four side surfaces by the rotation of the fan 1, and further uniformly sucked into the fan 5 through the second heat exchanger 5c. Heat is exchanged in each of the heat exchangers 5 and 5c.

  According to the fifth embodiment, under the maximum heat exchange area corresponding to a predetermined size of the outdoor unit 50, the maximum heat exchange capacity can be effectively extracted, and with an appropriate air volume corresponding to the capacity. The number of rotations of the fan 1 can be reduced, and low noise and high efficiency operation is possible. That is, an outdoor unit for an air conditioner that can increase the heat exchange capability without increasing the size of the housing can be realized.

  Next, the outdoor unit 50 for air conditioners of 6th Example is demonstrated, referring FIG. The sixth embodiment is different from the fifth embodiment in the following points.

  In the sixth embodiment, two flat plate heat exchangers 5d are used as the second heat exchanger. As a result, the heat exchanger 5d of the sixth embodiment can have a simpler structure than the heat exchanger 5c of the fifth embodiment. Pipes are arranged in order from the compressor 2 to the heat exchangers 5d and 5d.

  According to the sixth embodiment, under the maximum heat exchange area corresponding to a predetermined size of the outdoor unit 50, the maximum heat exchange capacity can be effectively extracted, and with an appropriate air volume corresponding to the capacity. The number of rotations of the fan 1 can be reduced, and low noise and high efficiency operation is possible. That is, an outdoor unit for an air conditioner that can increase the heat exchange capability without increasing the size of the housing can be realized.

  Next, the outdoor unit 50 for air conditioners of 7th Example is demonstrated, referring FIG. The seventh embodiment is different from the first embodiment in the following points.

  The seventh embodiment is greatly different from the first embodiment in that the blower 30 is a centrifugal blower. This blower device 30 is configured to include a fan 5 that sucks outdoor air from above in the axial direction and blows it out in the radial direction, and a bell mouth 6 that forms a suction port for the fan 5 and partitions the upper and lower spaces. It does not have an air duct.

  According to the seventh embodiment, the centrifugal fan 1 has the basic advantages, and the centrifugal fan 1 is used so that air can be directly sent to the blower 30 without installing a wind guide duct. Since the air is blown out to the four side surfaces, the structure can be simplified and the area of the air outlet 9b can be enlarged.

  Next, an air conditioner outdoor unit 50 according to an eighth embodiment will be described with reference to FIG. The eighth embodiment is different from the first embodiment in the following points.

  In the eighth embodiment, the outlet 11a is also provided in the bottom base 11, and further, a guard 12b for preventing entry of dust and small animals is provided in the outlet 11a, and the air duct 7 is not provided. The outlet 11 a is provided around the compressor 2, the electric box 3, and the motor 4 disposed in the center of the bottom base 11. Further, since the gantry 15 is attached to the bottom surface of the housing 40, a space is formed between the bottom base 11 and the installation surface 17. The gantry 15 may be a separate one depending on the state of the installation place during installation.

  With this configuration, when the fan 5 is rotated, most of the outdoor air is blown out from the blowout opening 9b and a part thereof is blown out from the blowout opening 11a.

  According to the eighth embodiment, the basic advantages of the first embodiment are obtained, and the wind pressure in the housing 40 is reduced by enlarging the area of the blowout port, thereby maximizing the heat exchange capability. It can be pulled out. Accordingly, the rotational speed of the fan can be reduced to an appropriate air volume corresponding to the capacity, and low noise and high efficiency operation can be performed.

It is a longitudinal section schematic diagram showing the outdoor unit for air conditioners of the 1st example of the present invention. It is a longitudinal cross-sectional schematic diagram which shows the outdoor unit for air conditioners of 2nd Example of this invention. It is a longitudinal cross-sectional schematic diagram which shows the outdoor unit for air conditioners of 3rd Example of this invention. It is a longitudinal cross-sectional schematic diagram which shows the outdoor unit for air conditioners of 4th Example of this invention. It is a longitudinal cross-sectional schematic diagram which shows the outdoor unit for air conditioners of 5th Example of this invention. It is a longitudinal cross-sectional schematic diagram which shows the outdoor unit for air conditioners of 6th Example of this invention. It is a longitudinal cross-sectional schematic diagram which shows the outdoor unit for air conditioners of 7th Example of this invention. It is a longitudinal cross-sectional schematic diagram which shows the outdoor unit for air conditioners of 8th Example of this invention.

Explanation of symbols

  1, 1A, 1B ... Fan, 2 ... Compressor, 3 ... Electrical, 4, 4A, 4B ... Motor, 5, 5A, 5B ... Heat exchanger, 6, 6A, 6B ... Bellmouth, 7, 7A, 7B Air guide duct, 7a ... Air exhaust port, 9, 9A, 9B ... Side casing, 9a ... Suction port, 9b ... Air outlet, 10, 10A, 10B ... Top plate, 11, 11A ... Bottom base, 11a ... Air outlet, DESCRIPTION OF SYMBOLS 12, 12A, 12B ... Guard, 15 ... Mount, 16, 16A, 16B ... Bell mouth, 17 ... Installation surface, 30 ... Blower, 40 ... Housing, 50 ... Outdoor unit for air conditioner.

Claims (7)

In an outdoor unit for an air conditioner that houses a heat exchanger, a blower, and a compressor in a housing,
The casing is configured by closing the upper surface, forming a suction port at the upper side, and forming a blowout port at the lower side.
The blower includes a bell mouth installed between the suction port and the blowout port, and a fan disposed in the center of the bell mouth so as to suck outdoor air from the suction port and blow out from the blowout port. And a motor for driving the fan,
The heat exchanger is disposed on the suction side of the fan in the housing and along the suction port,
The outdoor unit for an air conditioner, wherein the compressor is mounted on a bottom surface of the casing. In the outdoor unit for an air conditioner according to claim 1,
The housing is configured by a cuboid frame structure including a metal frame forming a skeleton of a cuboid and an outer plate attached to the frame so as to form an outer surface of the cuboid.
The outer plate constituting the upper surface and the bottom surface of the housing is made of a metal plate, and the outer plate constituting the front, rear, left, and right side surfaces of the housing has the suction port formed at the upper part of the four side surfaces and the four side surfaces. An air conditioner outdoor unit characterized in that the outlet is formed in the lower part. In the outdoor unit for air conditioners according to claim 1 or 2,
The fan is composed of an axial fan that sucks outdoor air from above and blows it downward.
An outdoor unit for an air conditioner, wherein an auxiliary outlet is formed at the center of the bottom surface of the casing, and the compressor, the motor, and electrical components for controlling the compressor are mounted. The 1st outdoor unit which stored the 1st heat exchanger, the 1st blower, and the compressor in the 1st case, the 2nd heat exchanger, and the 2nd blower are stored in the 2nd case, and the 1st outdoor A second outdoor unit mounted on the upper surface of the unit,
The first housing is configured by forming a first suction port at an upper side surface and forming a first outlet at a lower side surface,
The first air blower sucks outdoor air from the first air inlet and the first bell mouth installed between the first air inlet and the first air outlet, and blows out the air from the first air outlet. A first fan disposed in the center of the first bell mouth, and a first motor for driving the first fan,
The first heat exchanger is disposed on the suction side of the first fan in the first housing and along the first suction port,
The compressor is mounted on a bottom surface of the first housing;
The second casing is configured by closing the upper surface, forming a second suction port at the upper side, and forming a second outlet at the lower side.
The second air blower sucks outdoor air from the second air inlet and the second bell mouth installed between the second air inlet and the second air outlet, and blows out the air from the second air outlet. A second fan disposed in the center of the second bell mouth, and a second motor for driving the second fan,
The outdoor unit for an air conditioner, wherein the second heat exchanger is disposed on the suction side of the second fan in the second casing and along the second suction port. In the outdoor unit for air conditioners according to claim 4,
The first casing has a rectangular parallelepiped frame structure including a metal first frame forming a skeleton of a rectangular parallelepiped, and a first outer plate attached to the first frame so as to form at least four side surfaces and a bottom surface of the rectangular parallelepiped. Consists of
The first outer plate constituting the bottom surface of the first housing is made of a metal plate, and the first outer plate constituting the front, rear, left and right four side surfaces of the first housing is the first suction port at the upper part of the four side surfaces. And the first outlet is formed at the bottom of the four side surfaces,
The second casing has a rectangular parallelepiped frame structure including a metal second frame forming a rectangular parallelepiped skeleton and a second outer plate attached to the second frame so as to form at least four side surfaces and an upper surface of the rectangular parallelepiped. Consists of
The second outer plate that constitutes the upper surface of the second casing is made of a metal plate, and the second outer plate that constitutes the four front, rear, left, and right side surfaces of the second casing is the second suction port at the upper part of the four side surfaces. And an air conditioner outdoor unit characterized in that the second outlet is formed in the lower part of the four side surfaces. In an outdoor unit for an air conditioner that houses a heat exchanger, a blower, and a compressor in a housing,
The casing is configured by closing the upper surface, forming a suction port at the upper side, and forming a blowout port at the lower side.
The blower includes a bell mouth installed between the suction port and the blowout port, and a fan disposed in the center of the bell mouth so as to suck outdoor air from the suction port and blow out from the blowout port. And a motor for driving the fan,
The heat exchanger includes an upper heat exchanger disposed on the suction side of the fan in the housing and along the suction port, and a lower heat exchanger disposed on the air downstream side from the upper heat exchanger. With
The outdoor unit for an air conditioner, wherein the compressor is mounted on a bottom surface of the casing. In the outdoor unit for an air conditioner according to claim 1,
The housing is configured by a cuboid frame structure including a metal frame forming a skeleton of a cuboid and an outer plate attached to the frame so as to form an outer surface of the cuboid.
The outer plate constituting the upper surface and the bottom surface of the housing is made of a metal plate, and the outer plate constituting the front, rear, left, and right side surfaces of the housing has the suction port formed at the upper part of the four side surfaces and the four side surfaces. The outlet is formed at the bottom,
The outdoor unit for an air conditioner, wherein the lower heat exchanger is arranged on the blowout side of the fan in the casing and along the blowout port.

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