KR20030040338A - Front suction and discharge type outdoor unit for air-conditioner - Google Patents

Abstract

PURPOSE: A front suction/discharge type outdoor unit is provided to allow for ease of installation and maintenance of the sirocco fan of the outdoor unit. CONSTITUTION: A front suction/discharge type outdoor unit comprises an outdoor unit casing having one open surface and other closed surfaces, and an interior divided into a suction part(11a) and a discharge part(11b); a compressor mounted within the outdoor unit casing, which compresses the refrigerant vapor supplied through a pipe from an indoor unit; an air-cooling condenser(30) mounted within the outdoor unit casing, which condenses the refrigerant vapor supplied from the compressor; and a sirocco fan(40) mounted within the outdoor unit casing, which has a fan housing including a diffuser side member and an opposite side member which are separable from each other. The sirocco fan supplies outdoor air to the air-cooling condenser, and discharges heat-exchanged air.

Description

Front outdoor air conditioner for outdoor air conditioner {FRONT SUCTION AND DISCHARGE TYPE OUTDOOR UNIT FOR AIR-CONDITIONER}

The present invention relates to an outdoor unit for an air conditioner, and more particularly, to an outdoor unit for an air conditioner of a front suction type.

Air conditioners including both air conditioners or heaters can be divided into one-piece and separate types. In the case of describing the air conditioner as an example, the separate type air conditioner, which is the object of the present invention, is installed indoors to cool the room, and is connected to the indoor unit and the refrigerant pipe, and is installed in the outdoor contact with the air to provide external air to the cooling medium. It consists of an outdoor unit that supplies the condensed refrigerant after condensation heat exchange with the refrigerant gas in the condenser to the evaporator of the indoor unit through the refrigerant pipe. The indoor unit includes an evaporator for cooling heat exchange to absorb evaporative heat from the indoor air by evaporating the refrigerant, and a ventilation fan for circulating the indoor air. The outdoor unit includes a compressor for compressing the refrigerant gas and supplying it to the condenser, and a refrigerant gas supplied from the compressor. An air-cooled condenser for condensing, and a cooling fan for cooling and condensing the refrigerant gas by forcibly blowing external air to the air-cooled condenser. The compressor, air-cooled condenser and cooling fan of the outdoor unit are housed inside the outdoor unit casing that forms the exterior. The conventional hexahedral outdoor unit casing has an air inlet for sucking air into an air-cooled condenser on three sides, and an air for discharging air absorbed from the refrigerant gas to the outside through heat exchange in an air-cooled condenser on its upper surface to the outside. The discharge part is provided.

However, such a conventional outdoor unit for an air conditioner has been restricted in the installation place due to the high density of the city and the strengthening of environmental management, and has been subjected to complaints of the surroundings due to noise and heat emission. In particular, common residential facilities, such as large apartment complexes, require outdoor units to be installed inside the veranda due to aesthetics and noise problems.

In order to solve this problem, Japanese Patent Laid-Open Publication No. Hei 6-101873 is installed indoors of an air conditioner or adjacent to an indoor unit, and an outdoor unit of an air conditioner is installed outdoors. In the installed air conditioner-mounted building, an opening is installed in the outer wall or roof, a louver is installed in the opening, an outdoor unit of the air conditioner is installed inside the louver, and the intake or exhaust of the outdoor unit is a wing plate of the louver. Disclosed is a building equipped with an air conditioner, which is to be carried out through a gap.

In addition, Japanese Patent Laid-Open No. 3-213928 discloses an outdoor unit main body for an air conditioner having an outline having a thickness substantially the same as the wall embedded in the wall, and air for heat exchange disposed on the same side of the main unit main body. An outdoor unit for a wall-mounted air conditioner having a suction port and a blowout port of air after heat exchange is disclosed.

However, the above-mentioned prior arts do not disclose any outdoor air structure for efficient installation and repair in an outdoor unit of a front suction and discharge type, which has recently increased in volume and weight according to an increase in air conditioning capacity.

Accordingly, an object of the present invention is to provide a cooling fan structure that can easily install and repair the sirocco cooling fan in an outdoor unit for an air conditioner of a front suction / discharge type in which a sirocco cooling fan is installed for maximizing airflow. .

1 is a partial cross-sectional perspective view showing a structure of one embodiment of a wall-mounted outdoor unit for an air conditioner according to the present invention.

FIG. 2 is an exploded perspective view of the outdoor unit shown in FIG. 1.

Figure 3a is a view showing the housing separation structure of the sirocco cooling fan with the orifice facing up and down, Figure 3b is a view showing the housing separation structure of the sirocco cooling fan facing both sides of the orifice.

Figure 4 is a view showing a state of the discharge casing is mounted sirocco cooling fan according to the present invention.

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

2: building exterior wall 4: frame

7a: suction area 7b: discharge area

8: louver blade 10: outdoor unit

12a, 12b, 12c: lower side cover 13a, 13b, 13c: upper side cover

14: bottom cover 16: top cover

20: compressor 30: condenser

36: orifice 38: motor

40: cooling fan 42: diffuser side housing

44: housing opposite the diffuser 48: fan frame

According to the present invention, one side facing outward is opened and the other sides are closed, and a rectangular parallelepiped outdoor unit casing in which the inside is divided into a suction part and a discharge part, and a refrigerant installed in the outdoor unit casing and supplied through a pipe from an indoor unit. A compressor for compressing gas, an air-cooled condenser installed in the outdoor unit casing and condensing refrigerant gas supplied from the compressor, and an air-cooled condenser installed in the outdoor unit casing, wherein the fan housing is formed such that a member opposite to the diffuser is detachable from the diffuser side member. The present invention provides an outdoor unit for a front air suction / outflow air conditioner including a sirocco cooling fan configured to supply external air to the air-cooled condenser and discharge heat exchanged air.

Here, the outdoor unit casing is divided into a suction casing corresponding to the suction unit and a discharge casing corresponding to the discharge unit, the compressor and an air-cooled condenser are installed in the suction casing, and the sirocco cooling fan is the discharge casing. It can be installed in. In addition, one of the suction orifices of the sirocco cooling fan toward the surface farthest from the suction unit while in contact with the open one of the remaining surfaces, the other toward the suction unit, or the suction of the sirocco cooling fan The dragon orifice may face two faces in contact with the open one of the remaining faces.

In this case, however, the member opposite to the diffuser may be separated from the diffuser side member toward the closed surface facing the open one surface. In addition, a flange portion is formed in each of the diffuser side member and the opposite member of the diffuser, and it is preferable to fasten and fix each other using these flange portions. And, when the member opposite the diffuser is separated, it is preferable that the sirocco cooling fan motor and the fan blade portion are separated together while being coupled to the member opposite the diffuser. At this time, it is more preferable that a flange portion for covering the edge of the fan blade portion is formed in the diffuser side member when the diffuser side member and the opposite member of the diffuser are joined.

Hereinafter, the present invention will be described in more detail with reference to one embodiment of the present invention and an air conditioner for cooling. However, the scope of the present invention is not limited by the following examples and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

The accompanying drawings show the structure of an outdoor unit for a front suction type air conditioner according to an embodiment of the present invention.

An outer frame 4 is fixedly installed on a rectangular inner wall of a rectangular space formed on the outer wall 2 of a residential and / or commercial building, and an inner frame 6 inside the outer frame 4, and the outer frame 4. It is fixed to the installation. In some cases, the inner and outer frames 4 and 6 may be integrally formed. The inner region of the inner frame 6 is divided into a suction region 7a and a discharge region 7b, and a plurality of louver blades 8 are provided in each region to fill the gap between these louver blades 8. Air is sucked in or discharged through it. The direction of the louver blade 8 may be manipulated to adjust the direction in which air is sucked and / or discharged.

On the other hand, the outdoor unit 10 fixedly installed inside the building outer wall 2 to be in contact with the outer frame 4 and / or the inner frame 6 has an outdoor unit casing, which is the component shown in FIG. And several components are installed.

First, one side of the outdoor unit casing facing the suction area 7a and the discharge area 7b of the frame 4 is opened, and the open side part is divided into the suction part 11a and the discharge part 11b. This corresponds to the suction area 7a and the discharge area 7b of the frame 4. Then, the other three sides, the bottom and the top surface is closed to form a rectangular parallelepiped as a whole. In this case, the outdoor unit casing may be divided into a suction casing corresponding to the suction part 11a and a discharge casing corresponding to the discharge part 11b. FIG. 2 shows a case where the outdoor unit casing is thus divided. That is, the suction casing is closed by the lower cover 12a, 12b, 12c and the bottom cover 14, the open one side part corresponds to the suction area 7a, and the upper face is open toward the discharge casing. In addition, the discharge casing is closed by the upper cover 13a, 13b, 13c and the upper cover 16, the open one side part corresponds to the discharge area 7b, and the bottom face is open toward the suction casing. In addition, the outdoor unit casing may be formed by integrally forming the upper and lower side members without being divided into the suction casing and the discharge casing as described above. The bottom cover 16 has a plurality of leg members 18a, 18b, 18c, and 18d protruding outward from the bottom cover 16, and these leg members 18a, 18b, 18c, and 18d are formed on the floor of the building, e.g. Is supported on the floor to support the heavy load of the outdoor unit (10). The number of leg members 18a, 18b, 18c, and 18d may be preferably about four when considering the shape of the bottom cover 14. In addition, a leg reinforcement 19 for connecting and reinforcing these leg members 18a, 18b, 18c, and 18d to each other is formed in the transverse direction under the bottom cover 14. In addition, the leg members 18a, 18b, 18c, and 18d further include a height-adjustable screw (not shown), so that when the flatness of the floor of the building, for example, the floor of the apartment veranda is not correct, the outdoor unit ( It can be used to level 10. In addition, when the two of the leg members (18a, 18b, 18c, 18d), for example, the front (building outer wall side) two leg members (18a, 18b) further comprises a wheel for movement (not shown), It becomes quite convenient to carry the heavy load outdoor unit 10.

In addition, the compressor 20 is installed in the outdoor unit suction part 11a, and the air-cooled condenser 30 having a 'Ｕ' shape is formed by using the condenser covers 32a, 32b, and 32c and the condenser brackets 34a and 34b. It is fixedly supported by the side covers 12a and 12b and the bottom cover 14. Air-cooled condenser 30 has a plurality of rows of condenser piping between the many condenser fins has a zigzag shape. The structure and shape of the air-cooled condenser are not shown in detail because they are already known. The refrigerant gas compressed from the compressor 20 flows through the pipe of the condenser 30 and is condensed by taking heat of condensation into air supplied from the outside. In this case, the condenser covers 32a, 32b, and 32c and the condenser brackets 34a and 34b form an air path so that air introduced from the outside is not supplied to the discharge part 11b without passing through the condenser 30. As a result, the outside air sucked in through the gap between the louver blades 8 of the intake area 7a is “bounced” along the air path formed by the condenser covers 32a, 32b, and 32c and the condenser brackets 34a and 34b. Heat exchange with the refrigerant gas flowing through the condenser pipe while passing through the magnetic condenser (30).

In particular, unlike the outdoor unit of the type in which the outside air is sucked into the three side surfaces and the air heat-exchanged to the upper surface is discharged, the suction surface is limited in the present invention employing the front suction discharge method, so the suction resistance is large in the system. Therefore, the present invention is characterized by using a sirocco fan, unlike the conventional structure using an axial fan. That is, in the present invention, a sirocco fan which supplies external air to the outdoor unit discharge part 11b to the air-cooled condenser 30 through the suction area 7a and discharges heat-exchanged air through the discharge area 7b. 40 is provided as shown in the figure.

At this time, in order to increase the heat exchange capacity, it is necessary to increase the size of the impeller used in the sirocco fan, which leads to an increase in the size of the housing of the sirocco fan, which in turn increases the weight and volume of the sirocco fan. As a result, installation of the sirocco fan becomes difficult, and when the sirocco fan is required to be replaced due to failure of the sirocco fan during operation, the operation becomes difficult. Therefore, the present invention is characterized in that the housing of the sirocco fan 40 is formed to be separated into the diffuser side housing 42 and the housing opposite the diffuser 44 as shown in FIGS. 3A and 3B.

FIG. 3A shows one of the suction orifices of the sirocco cooling fan facing away from the suction part while contacting the open one of the remaining faces, and the other facing the suction part (ie, above the suction part). 2, the suction orifice faces up and down), and FIG. 3B shows the suction orifice of the sirocco cooling fan facing two surfaces in contact with the open one of the remaining surfaces. (That is, in the case of FIG. 2 in which the discharge portion is formed on the suction portion, the suction orifice faces in both side directions).

In each case, a first flange 42a is formed in the diffuser side housing 42, a second flange 44 is formed in the housing 44 opposite the diffuser, and the first and second flanges 42a, 44a are mutually supported. As shown in the drawing in the bonded state, they are coupled by fastening and fastening to each other with a plurality of fastening means, and these fastening means can be released and separated. In this case, one of the fan mounts 39 supporting the motor 38 for cooling fan is fixed to the diffuser side housing 42 and the other two fan mounts 39 are fixed to the housing 44 opposite the diffuser, During installation, the diffuser side housing 42 is first installed, and then the housing opposite the diffuser 44 is fixed to the diffuser side housing 42 while the fan motor and blades are fixed by the fan mount 39 to the housing 44 opposite the diffuser. To the diffuser side housing 42. In the case of separation, follow the reverse order. The number of fan mounts 39 is just one example, where it is important that the fan motor and blade portions are coupled to or separated from the diffuser side housing 42 with the fan motor and blade portions fastened securely to the housing 44 opposite the diffuser.

At this time, the orifices of the diffuser side housing 42 and the diffuser opposite housing 44 are each formed with a third flange 43 so that when the two housings are coupled, the discharge air from the fan blade is covered by covering the edge of the fan blade part. To act as a guide.

As shown in FIG. 4, only one of the upper cover 13c of the upper cover 13a, 13b, and 13c is removed, the release means coupled to the first and second flanges are released, and the fan mount 39 is provided. By unscrewing the diffuser side housing 42, the housing 44, fan motor and blade portion opposite the diffuser can be easily pulled out of the diffuser. Therefore, repair and replacement are made easily. Of course, the installation can also be easily reversed.

In the above, a fan support member for fixing the sirocco fan 40 to the outdoor unit casing is required to minimize the vibration caused by the operation of the fan to the system. These support members consist of a fan frame 48 which reinforces and supports the casing edges of the discharge portion as shown, and a fan bracket (not shown) for fixing the sirocco fan 40 to the fan frame 48 (Fig. An example of 3 is shown). As described above, when the outdoor unit casing is divided into a suction casing corresponding to the suction part 11a and a discharge casing corresponding to the discharge part 11b, the fan frame 48 reinforces and supports the discharge casing. do.

Reference numeral 49 denotes a fan front installed in front of the sirocco fan 40. Connecting members 49a are formed in the fan front 49 to help fasten and fix the discharging end of the sirocco fan 40.

In addition, the control box 50 for controlling the operation of the outdoor unit is provided inside the side cover 12b constituting the back of the side cover.

It looks at the operation of the outdoor unit for the air conditioner of the front suction method having the configuration as described above.

The refrigerant gas flowing from the indoor unit through the refrigerant pipe is compressed through the compressor 20 and supplied to the condenser 30. At this time, since the cooling fan 40 is operating, the air sucked in from the outside through the gap between the louver blades 8 of the suction area 7a is transferred to the condenser covers 32a, 32b, 32c and the condenser bracket 34a, The cooling fan 40 takes the heat of condensation from the refrigerant gas flowing through the condenser pipe inserted between the fins while evenly passing through the fins formed on the three sides of the “Ｕ” -shaped condenser 30 through the air passage made by 34b). Is discharged to the outside through the gap between the louver blades 8 of the discharge region 7b.

As described above, according to the present invention, there is provided a structure that can easily install or repair a cooling fan used for the outdoor unit of the front suction and discharge method that is inevitably increased in volume and weight in order to maximize the blowing amount.

Claims (8)

An outdoor unit casing having a rectangular parallelepiped shape in which one side facing outward is opened and the other sides are closed and the inside is divided into a suction part and a discharge part; A compressor installed in the outdoor unit casing and compressing a refrigerant gas supplied through a pipe from an indoor unit; An air-cooled condenser installed in the outdoor unit casing and condensing refrigerant gas supplied from the compressor; The fan housing is installed in the outdoor unit casing, and the fan housing includes a sirocco cooling fan configured to be detachably formed at a diffuser side member opposite to the diffuser, and to supply external air to the air-cooled condenser and discharge the heat-exchanged air. Outdoor unit for discharge air conditioner. The said outdoor unit casing is divided into the suction casing corresponding to the said suction part, and the discharge casing corresponding to the said discharge part, The said compressor and the air-cooled condenser are installed in the said suction casing, The said sirocco cooling fan An outdoor unit for an air conditioner of a front suction type, characterized in that provided in the discharge casing. The method of claim 1, wherein one of the suction orifices of the sirocco cooling fan faces away from the suction part while contacting the open one of the remaining surfaces, and the other toward the suction part. The outdoor unit for the air conditioner of the front suction type. The outdoor unit of claim 1, wherein the suction orifice of the sirocco cooling fan faces two surfaces of the remaining surfaces that contact the open one surface. 5. The frontal discharging method according to any one of claims 1 to 4, wherein the member opposite to the diffuser can be separated from the diffuser side member toward the closed surface facing the opened one surface. Outdoor unit for air conditioner. The air conditioner according to any one of claims 1 to 4, wherein a flange portion is formed at each of the diffuser side member and the opposite member to the diffuser, and is fastened and fixed to each other using these flange portions. Outdoor unit. The front suction method according to any one of claims 1 to 4, wherein when the member opposite to the diffuser is separated, the sirocco cooling fan motor and the fan blade portion are separated together while being coupled to the member opposite to the diffuser. Outdoor unit for air conditioners The outdoor unit of claim 7, wherein a flange portion is formed on the diffuser side member to cover the edge of the fan blade portion when the diffuser side member and the opposite member of the diffuser are coupled to each other.