KR20060076484A - Outdoor unit of air conditioner - Google Patents

Abstract

In order to suck air more effectively, the present invention is a suction port is formed on the front surface, the side discharge port is formed on one side; An outdoor heat exchanger mounted inside the suction port; And it is provided in the rear of the outdoor heat exchanger to provide an outdoor unit of the air conditioner comprising a fan unit for sucking the air through the suction port and discharge through the side discharge port.

Air Conditioner, Outdoor Unit, Side Discharge

Description

Outdoor unit of air conditioner {OUTDOOR UNIT OF AIR CONDITIONER}

1 is a perspective view of an outdoor unit of an air conditioner according to the prior art.

2 is a cross-sectional view of an outdoor unit of an air conditioner according to a first embodiment of the present invention.

3 is a perspective view of an outdoor unit of an air conditioner having a sirocco fan according to a first embodiment of the present invention.

Figure 4a is a view for explaining the X-fan assembly applied to the present invention.

4B is a perspective view of an outdoor unit of an air conditioner having an X-fan according to a first embodiment of the present invention.

5A and 5B are perspective views of an outdoor unit provided with a flow guide according to the present invention.

6 is a perspective view of an outdoor unit of an air conditioner according to a second embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100,200: outdoor unit 101,201: cabinet

101a, 201a, 201b: suction port 101b, 201c: side discharge port

104: sirocco fan 210: double suction sirocco fan

104a, 210a, 210b: opening 104b, 210c: outlet

105,205,206: outdoor heat exchanger 106,212: shroud

140,145: Euro guide

The present invention relates to an air conditioner, and more particularly, to an outdoor unit of an air conditioner.

In general, an air conditioner is a device for cooling or heating indoor air through heat exchange between a refrigerant and indoor or outdoor air. At this time, the state of the refrigerant is changed according to the thermodynamic cycle while passing through the compressor-condenser-expansion device-evaporator, and in particular, the indoor air is cooled or heated by heat transfer through the phase change of the refrigerant generated in the evaporator and the condenser.

The air conditioner is divided into a separate type that is installed separately from each other and an integral type consisting of the outdoor unit and the indoor unit integrally. Here, the integrated air conditioner is provided in the indoor unit and the outdoor unit in one case mainly installed in the window.

Meanwhile, in the separate air conditioner, an indoor unit including the indoor heat exchanger is attached to a wall or a ceiling of the room, while an outdoor unit including the outdoor heat exchanger is installed in an outdoor space such as a balcony of an apartment.

1 is a perspective view showing an outdoor unit according to the prior art.

As shown in FIG. 1, the outdoor unit 10 includes an outdoor heat exchanger and a fan for blowing outdoor air to the outdoor heat exchanger. In addition, one side of the outdoor unit is formed with a machine room in which the compressor 12 or the like is mounted.

In addition, the air discharge port (11a) is formed in the front of the case 11 forming the appearance of the outdoor unit 10, the air inlet (not shown) is formed at the rear. Accordingly, the air sucked through the suction port by driving the fan is discharged through the discharge port 11a through the outdoor heat exchanger, and the refrigerant flowing through the outdoor heat exchanger is heat-exchanged with the outdoor air. Thereafter, the refrigerant heat-exchanged with the outdoor air flows into the indoor heat exchanger provided in the indoor unit through the refrigerant pipe.

On the other hand, the outdoor unit 10 should suck the outdoor air through the rear surface and discharge it through the front surface, the structure should not be located on the front and rear of the outdoor unit to prevent the flow of air. To this end, the outdoor unit 10 should be installed so that a constant distance is maintained between the suction port formed on the rear surface of the outdoor unit 10 and the outdoor side wall surface.

However, when the outdoor unit is installed in a narrow space such as a veranda of an apartment, it is difficult to secure a constant distance between the suction port and the wall of the apartment.

Also, in general, in view of the air flow around the apartment, the airflow of the outdoor air blows toward the veranda located in front of the apartment, which winds toward the front of the outdoor unit. Therefore, there is a problem that it is difficult to discharge the air toward the front of the apartment from the discharge port formed on the front of the outdoor unit due to the resistance of the airflow.

 In order to solve the above problems, it is an object of the present invention to provide an outdoor unit of an air conditioner having a more effective air intake and discharge structure.

In order to achieve the above object, the outdoor unit of the air conditioner according to the first embodiment of the present invention, the suction port is formed on the front surface, the side discharge port is formed on one side; An outdoor heat exchanger mounted inside the suction port; And a fan unit provided at the rear of the outdoor heat exchanger to suck air through the suction port and discharge the air through the side discharge port.

Here, the fan unit is preferably made of a sirocco fan or an X-fan assembly. The side discharge port is further provided with a flow path guide for guiding the discharged air upward.

The side discharge port is further provided with a flow path guide for guiding the discharged air to the front side. Here, a diaphragm separating the flow of air is provided between the front side of the flow guide and the suction port.

The fan unit is preferably provided with at least two or more in parallel in the upper and lower parts.

On the other hand, in order to achieve the above object, the outdoor unit of the air conditioner according to the second embodiment of the present invention, the inlet is formed in each of the front and rear, the side discharge port is formed on one side; Outdoor heat exchangers mounted inside each suction port; And a fan unit provided inside the outdoor heat exchanger to suck air through the suction holes and discharge the air through the side discharge holes. Here, the fan unit is made of a double suction sirocco fan.

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

2 is a cross-sectional view of an outdoor unit of an air conditioner according to a first embodiment of the present invention, and FIG. 3 is a perspective view of the outdoor unit.

2 to 3, the inlet 101a is formed on the front surface of the cabinet 101 forming the exterior of the outdoor unit 100, the side discharge port 101b is formed on one side. The machine room 102 is formed at the other side of the surface where the side discharge port 101b is formed in the cabinet 101. Here, in order to prevent a large amount of foreign matter from entering the inside of the cabinet 101, it is preferable that the suction grill and the discharge grill are mounted on the suction port 101a and the discharge port 101b.

Inside the machine room 102, various electrical equipment including a compressor 103 and a motor for compressing and circulating a refrigerant are mounted. However, the compressor 103 and the motor may be configured to be mounted in an indoor unit (not shown) so that the machine room may not be formed on the other side of the outdoor unit cabinet 101.

Furthermore, a suction port may be formed on the front surface of the cabinet 101 as well as on the other side of the discharge port and the upper surface of the cabinet. Therefore, the outdoor air may be sucked through the three surfaces and discharged through one side.

In addition, an outdoor heat exchanger 105 is mounted inside the suction port 101a. Here, the outdoor heat exchanger 105 is preferably made of a fin-tube type heat exchanger, the refrigerant flowing through the tube provided in the heat exchanger 105 and the outdoor air is heat-exchanged with each other. Here, the outdoor heat exchanger 105 may be formed in a square to cover only the intake port 101a, but one side is bent and the bent side faces the machine room 102 so as to form an 'L' shape as a whole. It may be configured. Through this, the heat exchange area of the outdoor heat exchanger 105 may be increased.

Meanwhile, a fan unit is provided at the rear of the outdoor heat exchanger 105. The fan unit sucks air through the suction port 101a formed at the front of the cabinet 101 and discharges the air through the side discharge port 101b. do.

As a result, even when the outdoor unit 100 is installed in a narrow space such as a veranda of an apartment, the outdoor unit may smoothly suck the outdoor air through the front surface and then discharge it through the side surface. Therefore, it is not necessary to maintain a gap between the outdoor unit and the wall of the apartment, rather it is possible to efficiently use the narrow space of the apartment porch by installing the outdoor unit to be in close contact with the wall of the apartment.

At this time, the outdoor air is sucked more easily because it is sucked in the same direction as the direction of the air flow formed around the apartment. In addition, the air discharged to the side surface can be easily discharged without being affected by the air flow formed around the apartment.

The fan unit is preferably made of a sirocco fan (104). The sirocco fan 104 is low in noise, easy to install in the cabinet 101, and has the advantage of increasing the air volume by increasing the static pressure.

Here, the sirocco fan 104 includes a fan 107 having a plurality of blades along the circumferential direction and a shroud 106 surrounding the outer periphery of the fan 107. Here, the fan 107 receives the rotational force from the driving motor and rotates at a high speed to suck air in the axial direction and discharge the air in the radial direction.

The shroud 106 has an opening portion 104a through which air is sucked in the front surface of the axial direction, and a discharge port 104b communicating with the side discharge port 101b is formed at one side in the radial direction. Therefore, the outdoor air sucked through the opening 104a by the rotation of the fan 107 is discharged through the outlet 104b. In addition, a motor for rotating the fan 107 is installed at the rear of the shroud.

Since the sirocco fan 104 has a high static pressure, it is possible to smoothly suck the outdoor air between the plurality of fins provided on the outer peripheral surface of the tube of the outdoor heat exchanger 105.

Here, the air may be discharged to the upper side or the lower side of the cabinet side by inclining the direction of the outlet 104b of the shroud 106 toward the upper side or the lower side from one side of the cabinet 101.

Further, as shown in Figures 2 and 3, it is preferable that at least two fan units are provided in parallel along the vertical direction of the suction port. That is, in response to an increase in the area of the outdoor heat exchanger 105, the fan units are installed in the upper and lower portions of the cabinet 101 in parallel.

In addition, in response to the two or more fan units provided in the vertical direction, the outdoor unit 100 may be modularized to be separated up and down. That is, one modular outdoor unit is equipped with one fan unit and an outdoor heat exchanger, and one or more outdoor unit modules may be used in combination according to the heat exchange amount required by stacking the modular outdoor unit up and down.

On the other hand, the fan unit may be made of an X-fan assembly.

Figure 4a is a view for explaining the X-fan assembly applied to the present invention.

As shown in FIG. 4A, the X-fan assembly includes a rotating shaft 124 coupled to a driving motor (not shown), a cylindrical hub 121 fixed to an end of the rotating shaft 124, and The blades 122a are formed on the outer circumferential surface of the hub 121 while being spirally twisted along the axial direction. When the X-fan assembly is viewed from the side, the blades form an 'X' shape.

Here, the hub 121 is formed in a hollow shape in which the inlet end and the outlet end are opened, and four ribs 125 are provided inside the hollow part of the hub 121 to secure the coupling strength and the support strength with the rotation shaft 124. It is formed at 90 ° intervals. In addition, instead of forming the rib 125 inside the hub 121, a spiral auxiliary blade may be formed to blow air through the inside of the hub 121.

The blades 122a are formed in a semi-circular curved shape. The blades 122a are formed such that there is no overlapping area when viewed in the direction of the rotation axis, thereby forming a structure capable of injection molding by the upper mold and the lower mold.

Therefore, the blower fan of the present invention has a partition line (5) on the outer circumferential surface of the hub (121) by the upper and lower molds connecting the exit ends of the other blades adjacent to each other at the inlet end of each blade (5). ) Is formed.

In addition, the blade 122a is not uniform and its thickness is closer to the hub side is formed thicker than the tip side of the radial direction is good for vibration characteristics, which guides the center of gravity of the blade 122a inward This is because the vibration generated by reducing the moment generated during the rotation of the blower fan.

In addition, when the blade 122a is formed to be curved to have a predetermined radius of curvature, it is preferable that the radius of curvature of the inlet side is large and the radius of curvature of the outlet side is small. In addition, since the air is collected and discharged at the outlet side, the static pressure of the discharged air can be increased.

Meanwhile, in consideration of the narrow space inside the outdoor unit, instead of shortening the rotation axis length of the hub 121 of the X-fan assembly, the number of blades provided on the outer circumferential surface of the hub 121 is two or more. It can also be configured. That is, the multi-blade X-fan assembly having a plurality of blades on the outer circumferential surface of the hub 121 is preferably used.

Figure 4b is a perspective view showing the outdoor unit assembly of the air conditioner equipped with a multi-blade X-fan assembly according to the present invention.

As shown in Figure 4b, the inlet 101a is formed in the front of the outdoor unit cabinet 101, the outdoor air is sucked in, the side discharge port 101b is formed on one side. In addition, an outdoor heat exchanger is mounted inside the suction port 101a, and a multi-blade X-fan assembly is provided behind the heat exchanger. Here, the X-fan assembly includes an X-fan 120 and a guide guide 130 for guiding the air discharged from the X-fan 120 to one side.

The X-fan is coupled to the drive motor to rotate the rotating shaft 124, the long cylindrical hub 121 is fixedly coupled to the rotating shaft 124, and the outer surface of the hub 121 of the hub 121 It consists of a plurality of spiral blades 122b formed by twisting helically along the axial direction from one end to the other end.

That is, in order to be installed in a narrow space inside the outdoor unit 100, the length of the rotation axis direction of the hub 121 is shortened while the number of spiral blades 122b provided on the outer circumferential surface of the hub 121. To increase.

Meanwhile, a shroud 123 may be provided on an outer circumferential surface of the plurality of blades 122b to concentrate the blowing force. In addition, although not shown, at least two or more multi-blade X-fans 120 may be connected in series to have a stronger blowing force.

Here, the multi-blade X-fan 120 can obtain a high air flow and high air pressure air flow without significantly increasing the width of the blade, it has the advantage that can significantly reduce the size of the entire system. In addition, the spiral blades do not need to be continuously formed to be continuously connected in series to correspond to the required wind pressure. Therefore, there is an advantage that the injection molding by the mold can be made easy.

In addition, the fan unit may be a turbo fan, an axial flow fan having a guide guide, or the like.

5A and 5B are perspective views illustrating a state in which a flow path guide is mounted on an outdoor unit of an air conditioner according to the present invention.

As shown in FIG. 5A, a first flow guide 140 is mounted on one side of the cabinet 101 to guide the flow of air to the front. In order to smoothly guide the movement of the discharged air, the first flow guide 140 has a rear shape having a rounded shape in a streamline shape, and is discharged through the side discharge port 101b formed at one side of the cabinet 101. Air is guided by the first channel guide 140 and discharged toward the front of the outdoor unit 100. The first flow guide 140 may be formed integrally with the side of the cabinet 101 or may be made of a separate component.

According to the above structure, since the outdoor air is sucked through the front surface of the cabinet 101 and discharged through the front surface, the air sucked into the cabinet and the discharged air are mixed to reduce the heat exchange efficiency of the outdoor unit 100. Can be. In order to prevent such a problem, it is preferable that the diaphragm 150 separating the flow of air is provided between the front suction port 101a and the front side of the flow path guide 140.

Here, the diaphragm 150 may be simply formed in a plate shape in order to separate the intake air and the discharge air, but may have a 'V' shape so as to spread toward the front to effectively separate the flow of air. In addition, the connection portion between the diaphragm 150 and the cabinet 101 may be fixed by using a hinge to adjust an opening angle of the diaphragm.

On the other hand, as shown in Figure 5b, one side of the cabinet 101 is mounted with a second flow guide 145 for guiding the flow of air upward. In order to smoothly guide the movement of the discharged air, the second flow path guide 145 has a rounded shape in a planetary shape, and is discharged through the side discharge port 101b formed at one side of the cabinet 101. Is guided upward by the two euro guide 145 is discharged toward the upper side of the outdoor unit (100).

As described above, when the flow path guide is used, the outdoor unit according to the present invention may be used even in a space where air is difficult to discharge through one side of the cabinet due to the wall structure of the apartment.

6 is a perspective view illustrating an outdoor unit of an air conditioner according to a second embodiment of the present invention.

As shown in FIG. 6, suction ports 201a and 201b are formed on the front and rear surfaces of the cabinet 201 forming the exterior of the outdoor unit 200, respectively, and the side discharge ports 201c are provided on one side of the cabinet 201. Is formed. In addition, outdoor heat exchangers 205 and 206 are mounted inside the suction ports 201a and 201b on both sides, and outdoor air is sucked through the suction ports 201a and 201b inside the outdoor heat exchangers 205 and 206, respectively. The fan unit is mounted.

Air sucked through the suction ports 201a and 201b on both sides is formed on one side of the cabinet 201 after being heat-exchanged with the refrigerant flowing through the heat exchangers 205 and 206 while passing through the outdoor heat exchangers 205 and 206. It is discharged through the side discharge port 201c.

In order to suck outdoor air through both front and rear sides of the cabinet 201, the fan unit is preferably made of a double suction sirocco fan 210. Here, the double suction sirocco fan 210 includes a fan 211 provided with a plurality of blades along the circumferential direction and a shroud 212 surrounding the outer periphery of the fan 211. The shroud 212 is formed with openings 210a and 210b through which air is sucked into the front and rear portions of the axial direction, respectively, and an outlet 210c communicating with the side discharge ports 201c on one side of the radial direction. Is formed. Here, the fan 211 receives the rotational force from the drive motor and rotates at a high speed to suck air in the axial direction and discharge the air in the radial direction.

Therefore, the outdoor air sucked through the openings 210a and 210b on both sides by the rotation of the fan 211 is discharged through the outlet 210c. Since the sirocco fan has a high static pressure, it is possible to smoothly flow outdoor air between a plurality of fins provided on the outer peripheral surface of the tube of the outdoor heat exchanger.

The installation number of the suction suction sirocco fan and the additional installation structure of the flow path guide provided in the side discharge port are the same as in the above-described first embodiment, and thus description thereof will be omitted.

On the other hand, although not shown, it may be configured to discharge the air sucked through the front of the cabinet to the front. That is, a sirocco fan is installed in the upper part of the outdoor unit cabinet so that the suction port faces downward and the discharge port faces forward.

Through this, the air sucked through the front surface of the cabinet is sucked into the sirocco fan provided at the upper side through the outdoor heat exchanger and then discharged through the upper front surface again. Here, in order to prevent the intake air and the discharged air from being mixed with each other, the diaphragm described in the first embodiment may be provided between the front side suction port and the front upper side discharge port.

In addition, the outdoor heat exchanger may be configured to face the front surface and both sides so as to have a 'c' shape in cross section corresponding to the shape of the discharge hole formed in the upper front side. At this time, the suction port is preferably formed on both sides as well as the front of the cabinet.

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be modified and implemented appropriately within the scope described in the claims.

As described above, the outdoor unit of the air conditioner according to the present invention provides the following effects.

First, since a side discharge port is formed on one side of the outdoor unit, even when installed in a narrow space such as a balcony of the apartment, the air sucked through the front surface can be easily discharged through the side discharge port formed on the one side. Through this, the outdoor unit can be installed in a state of being in close contact with the wall of the apartment, thereby increasing the utilization of a narrow space such as an apartment veranda.

Second, the direction of the air discharged from one side of the outdoor unit can be changed to the front side or the upper side using the flow path guide. Through this, even when the obstacle of the flow is located on one side of the outdoor unit can be installed outdoor unit according to the present invention.                     

Third, since the suction port through which the outdoor air is sucked is formed in front of the outdoor unit, the outdoor air can be more easily inhaled by the airflow blowing toward the front of the apartment.

Claims (9)

A cabinet having a suction port formed at a front surface thereof and a side discharge port formed at a side thereof; An outdoor heat exchanger provided inside the cabinet; And And a fan unit provided at a rear of the outdoor heat exchanger to suck air through the suction port and discharge the air through the side discharge port. The method of claim 1, The fan unit is an outdoor unit of an air conditioner, characterized in that the sirocco fan. The method of claim 1, The fan unit is an outdoor unit of an air conditioner, characterized in that at least one or more X fan is configured to include a spiral blade. The method of claim 1, The outdoor unit of the air conditioner, characterized in that the side discharge port is further provided with a flow guide for guiding the discharged air upwards. The method of claim 1, The outdoor unit of the air conditioner, characterized in that the side discharge port is further provided with a flow guide for guiding the discharged air to the front side. The method of claim 5, An outdoor unit of an air conditioner, wherein a diaphragm separating a flow of air is provided between the front side of the flow guide and the suction port. The method of claim 1, The fan unit is an outdoor unit of the air conditioner, characterized in that at least two or more provided in parallel along the vertical direction. Cabinets each having front and rear suction ports and side discharge ports formed at side surfaces thereof; Outdoor heat exchangers respectively provided at the front and rear suction ports; And And an fan unit provided inside the outdoor heat exchanger and configured to suck air through the suction ports and discharge the air through a side discharge port. The method of claim 8, The fan unit is an outdoor unit of an air conditioner, characterized in that the suction sirocco fan.

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