KR20200045339A - Air conditioner - Google Patents

Abstract

An objective of the present invention is to provide an air conditioner capable of minimizing the size of an outdoor unit. According to an embodiment of the present invention, the air conditioner comprises: a case having an inlet and an outlet; an air blowing fan which is installed in the case, and allows a tip of a blade to rotate along a rotating path (A) which is a virtual extension line; an outdoor heat exchanger including a rear heat exchange unit installed on an intake side of the air blowing fan, and a lateral heat exchange unit extended by bending from the rear heat exchange unit; an orifice installed on a discharge side of the air blowing fan; and a barrier facing the lateral heat exchange unit, and positioning the air blowing fan and the orifice between the lateral heat exchange unit and the barrier. The barrier includes: a straight line portion extended backwards from a front mounting unit fixed on the front panel; a bending portion gently bent from the straight line portion to a rear mounting unit fixed on the rear heat exchanger; and a forming portion arranged at the same height as the center of the air blowing fan across the straight line portion and the bending portion, and concavely rounded in the direction opposite to the air blowing fan.

Description

Air conditioner {Air conditioner}

The present invention relates to an air conditioner with a barrier that can reduce the flow loss of outdoor air.

In general, an air conditioner is a device for cooling or heating a room using a refrigeration cycle including a compressor, an outdoor heat exchanger, an expansion valve, and an indoor heat exchanger.

The air conditioner includes an indoor unit and an outdoor unit, and the indoor unit includes a compressor, an outdoor heat exchanger, and an outdoor fan, and the outdoor unit includes an indoor heat exchanger and an indoor fan.

According to recent changes in the user's housing type, a high-performance air conditioner that can be installed in a narrow space is required. In order to increase the capacity of the outdoor unit, it is possible to increase the number of heat of the outdoor heat exchanger to heat the refrigerant. At this time, without increasing the size of the outdoor unit, to increase the number of outdoor heat exchangers, the interval between the components installed inside the outdoor unit is relatively short.

For example, in the case of an outdoor unit including an outdoor heat exchanger bent with an “A”, the outdoor heat exchanger may be divided into a rear heat exchange unit located at the rear of the fan and a side heat exchange unit located at the side of the fan.

On the other hand, a barrier is installed at a position facing the side heat exchanger with the fan interposed therebetween, and the interior space of the outdoor unit is divided into a heat exchange room where a heat exchanger and a blower fan are located by a barrier, and a battlefield where a compressor or the like is located.

The outdoor unit of the air conditioner disclosed in Korean Patent Publication No. 2009-40499 (filed on October 22, 2007), the outdoor unit of the air conditioner has a base; A barrier installed on the base; A compressor installed in one space of the barrier; A heat exchanger installed in the other space of the barrier; And a fan motor assembly installed in front of the heat exchanger, the barrier having a first portion positioned in front of the heat exchanger, and a second portion inclined toward the fan motor assembly in the first portion, A third portion extending from the second portion is included, and an angle formed by the heat exchanger and the first portion is larger than an angle formed by the heat exchanger and the second portion.

The barrier is configured to have the same curved surface based on the vertical height, while the blade of the fan rotates along a virtual circle, and the gap between the center of the fan and the barrier is relatively narrow.

Accordingly, there is a problem in that the flow path shape does not coincide with the flow shape of the fan in the portion where the fan and the barrier are closest, and the barrier acts as a kind of flow resistance, thereby reducing the blowing efficiency.

The present invention has been made to solve the problems of the prior art described above, and has an object to provide an air conditioner with a barrier applied to reduce the flow resistance of outdoor air.

In addition, the present invention has an object to provide an air conditioner capable of minimizing the size of the outdoor unit even if a flow path between the blower fan and the barrier is secured.

An air conditioner according to an embodiment of the present invention includes a case provided with an inlet and an outlet; A blower fan installed inside the case, the tip of the blade rotating along a rotation path A which is a virtual extension line; An outdoor heat exchanger including a rear heat exchanger installed on the suction side of the blower fan and a side heat exchanger extending by bending from the rear heat exchanger; An orifice installed on the discharge side of the blower fan; And a barrier facing the side heat exchanger, and the blower fan and the orifice positioned therebetween, wherein the barrier comprises: a straight portion extending rearward from a front mounting portion fixed to the front panel; A bending portion that gently curves from the straight portion to a rear mounting portion fixed to the rear heat exchanger, and is provided at the same height as the center of the blowing fan across the straight portion and the bending portion and is concave in the opposite direction to the blowing fan It includes a rounded forming portion.

The width (w) of the forming portion may be configured to be largest at a connecting portion of the front mounting portion and the straight portion, and may be gradually reduced as it goes from the straight portion to the curved portion.

The depth (t) of the forming portion may be configured to be largest at a connection portion between the front mounting portion and the straight portion, and may be gradually reduced as it goes from the straight portion to the curved portion.

The straight portion may include a first straight portion provided in a flat shape for a length in the front-rear direction of the orifice, and a second straight portion provided in a flat shape from the first straight portion to the bending portion.

The forming unit includes a first forming unit provided in the first linear unit and the orifice is mounted, a second forming unit provided in the second linear unit to be continuous with the first forming unit, and the second forming unit. And it may include a third forming portion provided in the bending portion to be continuous.

The first forming portion may be fitted with an outer peripheral surface of the orifice.

The second forming unit is located on a concentric circle (B) having a predetermined interval greater than the rotational path (A) of the blower fan, and can maintain a distance of 10 mm or more from the rotational path (A) of the blower fan.

The second and third forming portions may be configured to have different curvatures based on an inflection point between the second straight portion and the bending portion, and the third forming portion may be formed up to a connection portion between the bending portion and the rear mounting portion. Can be.

According to the present invention, by considering the flow shape of the blower fan, the forming of the forming portion concavely rounded in the opposite direction to the blower fan can make the flow path shape between the blower fan and the barrier match the flow shape of the blower fan. Therefore, it is possible to reduce the flow resistance caused by the barrier and increase the blowing efficiency of the blowing fan.

In addition, even if the blowing fan and the barrier are installed close, the gap between the blowing fan and the forming portion of the barrier can be maintained. Accordingly, the size of the outdoor unit can be minimized by installing the blower fan and the barrier close to each other, and a blower fan having a large diameter can be applied to increase the blowing amount.

1 is a perspective view showing the exterior of an outdoor unit of an air conditioner according to an embodiment of the present invention.
Figure 2 is a perspective view showing the interior of the outdoor unit air conditioner according to an embodiment of the present invention.
Figure 3 is an exploded perspective view of the outdoor unit of the air conditioner according to an embodiment of the present invention.
Figure 4 is a cross-sectional plan view showing the outdoor unit of the air conditioner according to an embodiment of the present invention.
5 is a front view showing the outdoor unit of the air conditioner according to an embodiment of the present invention.
6 is a perspective view showing a barrier according to an embodiment of the present invention.
7 is a side view showing a barrier according to an embodiment of the present invention.
8 is a front view showing a barrier according to an embodiment of the present invention.
9 is a cross-sectional view taken along line aa of FIG. 7.

Hereinafter, the present embodiment will be described in detail with reference to the accompanying drawings. However, the scope of the spirit of the invention possessed by the present embodiment may be determined from the information disclosed by the present embodiment, and the spirit of the invention possessed by the present embodiment may be performed by adding, deleting, or changing elements to the proposed embodiment. It will be said to include variations.

1 to 2 is a perspective view showing the exterior and interior of the outdoor unit of the air conditioner according to an embodiment of the present invention, and FIGS. 3 to 4 are outdoor units of the air conditioner according to an embodiment of the present invention. It is an exploded perspective view and a plan view.

The air conditioner of the present invention is a multi-air conditioning system for air-conditioning and heating that can be operated in either operation mode of cooling and heating to air-condition the room, or it is switched to either operation mode of cooling and heating to air the room. It may be a heat pump type air conditioning switching type multi-air conditioning system that can be harmonized, but is not limited thereto.

The air conditioner according to an embodiment of the present invention may include a plurality of indoor units and one outdoor unit 10.

The outdoor unit 10 includes a case that not only forms an exterior but also contains a number of parts.

The case of the outdoor unit 10 includes a front panel 11 constituting the front of the outdoor unit 10, a rear panel 12 spaced apart from the rear of the front panel 11, and a rear panel 12 constituting the rear of the outdoor unit, and a front panel ( 11) and the upper panel 13 provided on the upper side of the rear panel 12 to constitute the upper surface of the outdoor unit 10, and provided on both sides of the front panel 11 and the rear panel 12 of the outdoor unit 10 It includes a left panel 14 and a right panel 15 constituting both sides.

An inner space enclosed by the case of the outdoor unit 10 is formed.

The outdoor unit 10 is provided with suction ports 12A, 14A, and 15A through which outdoor air is sucked into the internal space, and discharge ports 11A through which outdoor air heat-exchanged in the internal space is discharged. Intake ports 12A, 14A, and 15A may be formed in the rear panel 12, the left panel 14, and the right panel 15, and the discharge port 11A may be formed in the front panel 11. After outdoor air is sucked in from the rear or side of the outdoor unit 10, it is heat-exchanged in the interior space, and may be discharged to the front of the outdoor unit 10.

The outdoor unit 10 further includes a service panel 16. The service panel 16 may be formed to be rounded from one side of the outdoor unit 10 to the front, and may include a service cover 16A. Therefore, since the service panel 16 can open and close the front and the side at the same time with one panel, the operator or the administrator can easily access the battlefield 60 to be described later through the service cover 16A.

The outdoor unit 10 further includes a base 17 forming a lower surface of the outdoor unit 10. Various electrical components and the like may be disposed on the upper surface of the base 17, including some components of the refrigeration cycle to be described later. The lower surface of the base 17 may be in contact with the ground to fix the outdoor unit on the ground.

The outdoor unit 10 includes a barrier 100 extending upward from the base 17.

The barrier 100 is a type of plate, and the lower end of the barrier 100 may be coupled to the upper surface of the base 17, and the upper end of the barrier 100 may be positioned to be spaced apart from the upper panel 13 by a predetermined distance. Further, the front end of the barrier 100 may be fixed to one side of the orifice 100 to be described later, and the rear end of the barrier 100 may be fixed to one side of the heat exchanger 24 to be described later.

The barrier 100 divides the interior space of the outdoor unit 10 into a heat exchange chamber 50 and a battlefield room 60, a heat exchange chamber 50 is provided on the left side of the barrier 100, and a right side of the barrier 19 is provided. Battlefield 60 may be located.

The heat exchange chamber 50 is a space in which the heat exchanger 24 and the blower fan 32, which will be described later, are disposed, and refrigerant flowing through the heat exchanger 24 and air flowing by the blower fan 32 are exchanged.

The battlefield 60 is a space in which the battlefield 70, which is a kind of control box, is located. The barrier 100 may include a curved surface, and the curved surface of the barrier 100 may be configured to have a curvature to correspond to a component disposed in the battlefield 60.

The outdoor unit 10 includes a compressor 21 for compressing refrigerant, an oil separator (not shown), a four-way valve (not shown), an outdoor heat exchanger 24, an outdoor solenoid valve (not shown), and gas liquid The separator 25 and a plurality of refrigerant pipes 26 may be provided.

After the refrigerant is compressed in the compressor (21), the oil is separated from the refrigerant in the oil separator, and the compressed refrigerant in which the oil is separated by varying the flow path by the four-way valve is used for the outdoor heat exchanger (24) and the indoor heat exchanger (not shown). City).

In the case of cooling operation of the air conditioner, compressed refrigerant flows to the outdoor heat exchanger 24 by the four-way valve, and refrigerant condensed in the outdoor heat exchanger 24 decompresses while passing through the outdoor expansion valve, and then flows to the indoor unit And, the refrigerant evaporated in the indoor heat exchanger may flow back into the flow conversion unit.

In the case of the heating operation of the air conditioner, the compressed refrigerant flows to the indoor heat exchanger of the indoor unit by the four-way valve, the refrigerant condensed in the indoor heat exchanger is depressurized while passing through the indoor expansion valve, and then flows to the indoor unit, and the outdoor heat exchanger The refrigerant evaporated at (24) may be introduced back into the flow diverter.

The refrigerant that has passed through the flow switching unit flows to the gas-liquid separator 25, and after the liquid refrigerant is separated from the gas-liquid separator 25, only the gaseous refrigerant flows into the compressor 21 and can be operated along the refrigeration cycle as described above. have.

The outdoor heat exchanger 24 is configured to heat exchange the refrigerant with external air, and serves as a condenser during cooling operation and an evaporator during heating operation.

The outdoor heat exchanger 24 may be bent with ''. Accordingly, the outdoor heat exchanger 24 may be positioned adjacent to the rear panel 12 and the left panel 14, but may also be positioned adjacent to the rear panel 12 and the right panel 14.

The outdoor heat exchanger 24 includes a rear heat exchange section 24A and a side heat exchange section 24B extending by bending from the rear heat exchange section 24A. The rear heat exchange unit 24A may be positioned to correspond to the rear panel 12, and the lateral heat exchange unit 24B may be positioned to correspond to the left panel 14.

The outdoor heat exchanger 24 includes an inflow surface through which outdoor air flows and a discharge surface through which heat-exchanged air is discharged. The inflow surface is a surface facing the rear panel 12 and the left panel 14 based on the outdoor heat exchanger 24, and the discharge surface is a surface facing the internal space of the outdoor unit 10.

The outdoor unit 10 may further include a motor 31, a blower fan 32, and a motor bracket 33.

The motor 31 imparts rotational force to the blowing fan 32.

The blower fan 32 is fastened to the rotating shaft of the motor 31 and flows outdoor air as it is rotated. The blowing fan 32 is applied with an axial flow fan that can make a high flow rate with a low static pressure.

The blowing fan 32 includes a hub to which the rotation axis of the motor 31 is fastened, and a plurality of blades formed on the outer circumferential surface of the hub. The blade of the blower fan 32 includes a leading edge, a trailing edge, and a tip constituting a radially outermost end (tip: 32t). A virtual extension line in which the tip 32t of the blower fan 32 rotates may be defined as a rotation path (A).

The motor bracket 33 is coupled to the motor 31 to support the motor 31 and the blowing fan 32. The lower end of the motor bracket 33 is fastened to the upper surface of the base 17, and the upper end of the motor bracket 33 is fastened to the lower surface of the upper panel 13.

And, the motor 31 is fastened to the front of the motor bracket 33, the blowing fan 32 is fastened to the rotation axis of the motor 31, the motor 31 and the blowing fan 32 of the front panel 110 It is positioned to correspond to the discharge port 11A.

Therefore, in the heat exchange chamber 50, the discharge port 11A, the blowing fan 32, the motor 31, the motor bracket 33, and the rear heat exchange unit 24A may be sequentially arranged from front to rear. have.

The outdoor unit 10 is provided between the discharge port 11A and the blowing fan 32, and further includes an orifice 40 fastened to the front panel 11.

The orifice 40 may be located between the front front panel 11 and the rear blowing fan 32, and may be located between the left side lateral heat exchange unit 24B and the right side barrier 19.

Therefore, the orifice 40 guides outdoor air flowing from the blowing fan 32 to the discharge port 11A, and noise caused by rotation of the blowing fan 32 is external to the outdoor unit 10 through the side heat exchange unit 24B. It can be prevented from being transmitted to.

5 is a front view showing an air conditioner according to an embodiment of the present invention, FIGS. 6 to 8 are perspective and side views and front views showing a barrier according to an embodiment of the present invention, and FIG. 9 is a view of FIG. 7. It is a section along the line aa.

Barrier 100 according to an embodiment of the present invention, as described above, as a partition wall for separating the heat exchange chamber 50 and the battlefield 60, is composed of a thin plate made of steel, the front panel (11: 4) and a front mounting portion 101 fixed to the rear heat exchanger 24A, and a rear mounting portion 102 fixed to the rear heat exchanger 24A.

The barrier 100 includes a straight portion 110, a bending portion 120, and a forming portion 130.

The straight portion 110 is horizontally opposed to the side heat exchanger 24B, and is provided in a flat shape extending vertically rearward from the front mounting portion 101. The straight portion 110 may be composed of a first straight portion 111 in contact with the orifice 40 and a second straight portion 112 extending rearward from the first straight portion 111. Of course, the front mounting portion 101 may be provided in a form bent in front of the first straight portion 111.

The bending part 120 is provided in a curved shape that is gently rounded from the second straight part 112 to the rear mounting part 102. The rear mounting portion 102 may be provided in a shape bent at the rear of the banding portion 120.

The forming part 130 is provided at the same height as the center of the blowing fan 32, and is provided in a concave round shape in the opposite direction to the blowing fan 32 over the straight part 110 and the bending part 120. .

The forming unit 130 includes a first forming unit 131 formed on the first linear unit 111 and a second forming unit 132 formed on the second linear unit 112 to be continuous with the first forming unit 131. And, it may be composed of a third forming portion 133 formed in the bending portion 120 so as to be continuous with the second forming portion 132, it is composed of a continuous rounded curved surface.

The first forming portion 131 is a portion in which the orifice 40 (shown in FIG. 4) is in contact, and may be configured in the same curved shape as a portion of the outer circumferential surface of the orifice 40 (shown in FIG. 4) in the first straight portion 111. You can. Accordingly, the barrier 100 may be installed to contact the orifice 40 (shown in FIG. 4).

The second forming portion 132 may be configured in a curved shape in consideration of the flow shape of the blowing fan 32 from the orifice 40 (shown in FIG. 4) in the second straight portion 112. The second forming unit 132 may be configured to be positioned on a concentric circle B having a predetermined interval greater than the rotation path A of the blowing fan 32. In addition, the second forming unit 132 is preferably maintained at least 10mm or more from the rotation path (A) of the blowing fan (32).

The third forming portion 133 may also be configured in a curved shape in consideration of the flow shape of the blowing fan in the bending portion 120, and may extend as far as possible to the connecting portion of the bending portion 120 and the rear mounting portion 102. .

The second straight portion 112 and the bending portion 120 are connected to each other based on the inflection point b, and are provided in the second forming portion 132 and the bending portion 120 provided in the first straight portion 111. The formed third forming part 133 constitutes a curved surface that is continuous with each other, but is preferably composed of curved surfaces having different curvatures based on an inflection point b between the second straight part 112 and the bending part 120. Do.

The width (w) of the forming unit 130 may be defined as the length of the forming unit 130 fine in the vertical direction of the barrier 100, but the width (w) of the forming unit 130 is the front mounting unit 101 ) And the connecting portion of the first straight portion 111, that is, the largest forming portion in the first forming portion 131, the second forming portion 132 and the third forming portion 133 may be gradually smaller and smaller. have.

In addition, the depth (t) of the forming unit 130 may be defined as the length of the forming unit 130 fine in the direction of the battlefield 60 of the barrier 100, the thickness (t) of the forming unit 130 The connecting portion of the front mounting portion 101 and the first straight portion 111, that is, the largest configuration in the first forming portion 131, the second forming portion 132 and the third forming portion 133 is gradually smaller Can be configured.

When the barrier 100 configured as described above is applied, a flow path between the rotating path A of the blowing fan 32 and the barrier 100 is formed, and the rotating path A of the blowing fan 32 and concentric circles B ), The forming unit 100 is provided on the barrier 100 side.

Then, when the blowing fan 32 is rotated, outdoor air is sucked into the blowing fan 32, and the flow shape of the blowing fan 32 appears as an elongated shape from front to rear.

Therefore, since the flow path between the rotation path A of the blowing fan 32 and the barrier 100 coincides with the flow shape of the blowing fan 32, flow loss can be reduced, and blowing efficiency can be improved.

In addition, as the distance between the rotation path A of the blower fan 32 and the barrier 100 is narrow, noise may be generated due to flow resistance. However, the rotation path (A) of the blowing fan 32 and the second forming portion 132 of the barrier 100 are positioned closest to each other, but because they are spaced at least 10 mm or more, between the blowing fan 32 and the barrier 100 In addition, noise generated due to flow resistance can be reduced.

In addition, when the distance between the blowing fan 32 and the barrier 100 is configured to be the same, when applying the barrier 100 with the forming unit 130, the installation space of the blowing fan 32 and the barrier 100 Since it can be further reduced, the size of the outdoor unit can be minimized, and since the blowing fan 32 having a large diameter can act, the amount of blowing can be further increased.

100: barrier 101: front mounting portion
102: rear mounting portion 110: straight portion
111: first straight portion 112: second straight portion
120: banding unit 130: forming unit
131: first forming unit 132: second forming unit
133: third forming unit

Claims (12)

A case provided with a suction port and a discharge port;
A blower fan installed inside the case, the tip of the blade rotating along a rotation path A which is a virtual extension line;
An outdoor heat exchanger including a rear heat exchanger installed on the suction side of the blower fan and a side heat exchanger extending by bending from the rear heat exchanger;
An orifice installed on the discharge side of the blower fan; And
It includes; a barrier that faces the lateral heat exchange part and the blower fan and the orifice are positioned therebetween;
The barrier,
A straight portion extending rearward from the front mounting portion fixed to the front panel,
A bending portion that gently curves from the straight portion to a rear mounting portion fixed to the rear heat exchanger;
An air conditioner including a forming portion provided at the same height as the center of the blowing fan over the straight portion and the bending portion and concavely rounded in a direction opposite to the blowing fan. According to claim 1,
The width (w) of the forming portion,
The largest air conditioner in the connecting portion of the front mounting portion and the straight portion. According to claim 2,
The width (w) of the forming portion,
An air conditioner that gradually decreases from the straight portion to the curved portion. According to claim 1,
The depth (t) of the forming portion,
The largest air conditioner in the connecting portion of the front mounting portion and the straight portion. According to claim 4,
The depth (t) of the forming portion,
An air conditioner that gradually decreases from the straight portion to the curved portion. The method according to any one of claims 1 to 5,
The straight portion,
A first linear portion provided in a flat shape as long as the length of the orifice in the front-rear direction,
An air conditioner including a second straight portion provided in a flat shape from the first straight portion to the bending portion. The method of claim 6,
The forming unit,
A first forming portion provided in the first linear portion and on which the orifice is mounted,
A second forming portion provided in the second linear portion to be continuous with the first forming portion,
An air conditioner including a third forming portion provided in the bending portion to be continuous with the second forming portion. The method of claim 7,
The first forming unit,
An air conditioner conforming to the outer peripheral surface of the orifice. The method of claim 7,
The second forming unit,
An air conditioner located on a concentric circle (B) having a predetermined interval greater than the rotation path (A) of the blowing fan. The method of claim 7,
The second forming unit,
An air conditioner that maintains a distance of 10 mm or more from the rotation path (A) of the blower fan. The method of claim 7,
The second and third forming parts,
An air conditioner configured to have different curvatures based on an inflection point between the second straight portion and the bending portion. The method of claim 11,
The third forming unit,
An air conditioner formed up to the connecting portion of the bending portion and the rear mounting portion.

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