KR20060088724A - Heat exchange unit with vent - Google Patents

Abstract

The present invention relates to a heat exchange unit for a ventilation combined heat exchange unit of an air conditioner having a cooling function and a heating function of a room, including a first inlet for introducing indoor air, a first outlet for discharging air into a room, and ventilation A cabinet having a second inlet for introducing outdoor air and a second outlet for discharging indoor air introduced into the first inlet to the outside; A heat exchanger for temperature control of air supplied to the room through the first outlet; And a regeneration heat exchanger configured to mutually heat exchange the outdoor air introduced into the second inlet and the indoor air discharged to the outside for ventilation, and recirculate the entire indoor air introduced into the cabinet to the room. And it provides a heat exchange unit for both the ventilation is operated in the full ventilation mode for discharging the entire indoor air introduced into the cabinet through the first suction port to the outside. Therefore, it is easy to install the combined heat exchange unit of the ventilation and the indoor environment can be maintained more comfortably.

Air conditioner, combined heat exchange unit, regenerative heat exchanger, heat exchanger, blower

Description

Heat exchange unit with vent

1 is a view schematically showing a state in which an air conditioner provided with a combined heat exchange unit according to the present invention is installed

Figure 2 is a perspective view showing the internal configuration of the heat exchange unit for combined ventilation according to the first embodiment of the present invention

3 is a plan view showing the internal configuration of a heat exchange unit for a combined ventilation according to a first embodiment of the present invention

4 is a partial longitudinal cross-sectional view of a combined heat exchange unit according to a first embodiment of the present invention;

5A and 5B are a perspective view and a cross-sectional view showing a double suction sirocco fan provided in a heat exchange unit for a combined ventilation according to a first embodiment of the present invention

6 is a plan view schematically showing the internal configuration of a heat exchange unit for a combined ventilation according to a second embodiment of the present invention

7 is a plan view schematically showing the internal configuration of a heat exchange unit for a combined ventilation according to a third embodiment of the present invention

8 is a plan view schematically showing an internal configuration of a combined heat exchange unit according to a fourth embodiment of the present invention

9 is a plan view schematically showing an internal configuration of a combined heat exchange unit according to a fifth embodiment of the present invention

10A and 10B are respectively a plan view and a perspective view of an X-fan assembly and an X-fan provided in a heat exchange unit for a combined ventilation according to a fifth embodiment of the present invention;

11 is a plan view schematically showing a combined heat exchange unit according to a sixth embodiment of the present invention

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

100: outdoor unit 200: ventilation and heat exchange unit

210: regenerative heat exchanger 211, 212: communication port

213, 214: damper 215: boundary wall

216: regenerative heat exchanger 220: heat exchanger

230: cabinet 240: first blower

250: second blower

The present invention relates to an air conditioner, and more particularly, to a ventilation and heat exchange unit for controlling the temperature of air supplied to the room and provided in the air conditioner.

In general, an air conditioner is a device for cooling or heating an indoor space such as a living space, a restaurant, a library, or an office.

To this end, a general air conditioner includes a compressor, a condenser, an expansion device, and an evaporator, and the indoor air is cooled or heated by the phase change of the refrigerant passing through the compressor, the condenser, the expansion device, and the evaporator.

The air conditioners are classified into an integrated air conditioner in which the outdoor unit and the indoor unit are integrally formed, and a separate air conditioner in which the outdoor unit and the indoor unit are separately installed.

Here, the integrated air conditioner is a structure in which the indoor unit heat-exchanging with the indoor air and the outdoor unit heat-exchanging with the outdoor air are integrally installed in one case, and are mainly installed in a window.

In the separate type air conditioner, an indoor unit that exchanges heat with indoor air is attached to a wall or a ceiling of an indoor air, and an outdoor unit that exchanges heat with outdoor air is configured separately from the indoor unit and installed on a balcony of a apartment or an outer wall of a building.

However, since the indoor unit of the general air conditioner described above is simply configured to cool or heat the room while circulating the indoor air, in order to maintain a more comfortable indoor environment, in recent years, the ventilation function together with the indoor cooling and heating functions The development of this equipped air conditioner is calculated | required.

In addition, it is also required to develop an indoor unit of an air conditioner, that is, a ventilation and heat exchange unit that minimizes heat loss during ventilation of the room and at the same time installs easily and efficiently utilizes the indoor space.

Furthermore, there is a demand for the development of an air conditioner capable of cooling and heating a plurality of rooms with one heat exchange unit.

In order to solve the above problems, an object of the present invention is to provide a ventilation and heat exchange unit of an air conditioner which is equipped with a ventilation function in addition to the cooling and heating functions of the room to maintain a more comfortable indoor environment.

It is another object of the present invention to provide a heat exchange unit for both ventilation and easy to install and to minimize heat loss during ventilation of the room.

In order to achieve the above object, the present invention provides a first inlet for introducing indoor air, a first outlet for discharging air into the room, a second inlet for introducing outdoor air for ventilation, and the first inlet. A cabinet having a second outlet for discharging the introduced indoor air to the outside; A heat exchanger provided at one side of the cabinet and configured to control a temperature of air supplied into the room through the first outlet; And a regeneration heat exchanger provided on the other side of the cabinet to mutually heat-exchange the outdoor air introduced into the second suction port and the indoor air discharged to the outside for ventilation, and includes the entire indoor air introduced into the cabinet. Provided is a combined heat exchange unit operated in an indoor air circulation mode for resupplying indoors and in a full ventilation mode for discharging the entire indoor air introduced into the cabinet through the first suction port to the outside.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention in which the object of the present invention can be specifically realized are described with reference to the accompanying drawings.

In describing the present embodiment, the same name and the same reference numerals are used for the same configuration and additional description thereof will be omitted below.

First, with reference to Figure 1 will be described an air conditioner provided with a combined heat exchange unit according to the present invention.

1, the air conditioner provided with a combined heat exchange unit according to the present invention, the outdoor unit 100 for heat exchange with the outdoor air, the combined heat exchange unit having a ventilation function and the temperature control function of the air supplied to the room ( 200, and a duct unit 300 connected to the combined heat exchange unit for guiding air is configured.

Here, the outdoor unit 100 is installed on the outer wall or porch of the building, a compressor (not shown) for compressing and discharging the circulating refrigerant, an outdoor heat exchanger (not shown) for heat exchange with outdoor air, one side of the outdoor heat exchanger It is configured to include a blower (not shown) provided to the forcing the flow of air, and an outdoor unit case (not shown) for receiving the compressor and the outdoor heat exchanger and the blower to form an appearance.

In addition, the combined heat exchange unit 200 performs a function of a normal indoor unit that cools or heats the air supplied to the room, and performs a ventilation function.

In addition, the combined heat exchange unit 200 is configured to perform a function of minimizing heat loss by mutual heat exchange between the outdoor air supplied to the room and the indoor air discharged to the outside.

The ventilation combined heat exchange unit 200 having the above function may be installed on the ceiling or the wall of the room, but is preferably installed on the ceiling of the veranda in order to effectively utilize the indoor space.

In general, the veranda is installed adjacent to the living room, the ceiling of the veranda is built higher than the ceiling of the living room or room.

Therefore, in order to install the combined heat exchange unit 200, it is not necessary to form an accommodation space having a predetermined size for accommodating the combined heat exchange unit 200 on the ceiling or the wall of the room.

In addition, due to the installation of the combined heat exchange unit 200, the problem of harming the aesthetics of the room is also eliminated, it is possible to cool or heat a plurality of rooms with a single combined heat exchange unit 200.

The duct unit 300 includes a first duct 310 for guiding indoor air to the ventilation heat exchange unit 200, and air supplied to the interior from the ventilation heat exchange unit 200 to the interior. It comprises a second duct 320 for guiding.

In this case, each of the ducts 310 and 320 constituting the duct 300 is built in the ceiling of the room, it is preferable that the double pipe structure to minimize the heat loss.

In more detail, each of the ducts 310 and 320 includes an internal extension tube for guiding flowing air, and an external extension tube (not shown) surrounding the internal flow tube (not shown).

In addition, an air layer having a heat insulation function is formed between the inner extension pipe and the outer extension pipe, thereby minimizing heat loss during the flow of air.

In addition to the above configuration, the end of the second duct 320 is provided with a fan power unit 400 which sucks indoor air and discharges the air together with the air supplied from the combined heat exchange unit 200.

The fan unit includes a housing (not shown) forming an external appearance and a blower (not shown) accommodated inside the housing.

In addition, the inside of the housing is preferably provided with a filter for purifying the air discharged into the room.

Next, a first embodiment of a combined heat exchange unit according to the present invention will be described with reference to FIGS. 2 to 4.

2 is a perspective view showing the internal configuration of the combined heat exchange unit according to the first embodiment of the present invention, FIG. 3 is a plan view showing the internal structure of the combined heat exchange unit according to the first embodiment of the present invention, and FIG. 4 is a partial longitudinal cross-sectional view of a combined heat exchange unit according to a first embodiment of the present invention.

2 to 4, the combined heat exchange unit 200 according to the first embodiment of the present invention, the regenerative heat exchange unit for mutual heat exchange between the outdoor air supplied from the outside and the indoor air discharged to the outside for ventilation 210, a heat exchanger 220 for controlling the temperature of the air supplied to the room, and the regeneration heat exchanger 210 and the cabinet 230 for receiving the heat exchanger 220 is configured.

The regenerative heat exchanger 210 is accommodated in one side of the cabinet 230, and the heat exchanger 220 is accommodated in the other side.

In more detail, the cabinet 230 includes a first inlet 231 through which indoor air is introduced, a first outlet 232 through which the air supplied from the heat exchanger 220 to the room is discharged, and the regeneration heat exchanger. And a second inlet 233 for supplying outdoor air to the unit 210, and a second outlet 234 for discharging the indoor air heat-exchanged in the regenerative heat exchanger 210 to the outside.

Here, the cabinet 230 has a substantially rectangular box shape, the first duct 310 is connected to the first inlet 231, and the second duct 320 is connected to the first outlet 232. Connected.

In addition, the second suction port 233 may be provided with a preheater 233a for heating outdoor air introduced into the regenerative heat exchanger 210.

On the other hand, the first suction port 231 and the first discharge port 232 is preferably formed on one side, that is, the rear surface of the cabinet 230. In addition, the second suction port 233 and the second discharge port 234 are preferably formed on the other side, that is, the front surface facing the one side.

The cabinet 230 having the above-described configuration is installed on the ceiling of the veranda such that the rear surface of the cabinet 230 in which the first suction port 231 and the first discharge port 232 are formed faces the room, Preferably, the other side perpendicular to the front and rear of the cabinet 230 is preferably installed on the ceiling edge of the veranda so as to be in close contact with one side wall of the veranda.

Here, although the outdoor air discharged from the regenerative heat exchanger 210 for indoor ventilation may be directly supplied to the room through a separate duct (not shown), in order to supply more comfortable air to the inhabitants, the regeneration The outdoor air discharged from the heat exchanger 210 is introduced into the heat exchanger 220, cooled or heated, and then supplied to the room.

To this end, the first inlet 231 is in selective communication with the second outlet 234, and the second inlet 233 is configured to selectively communicate with the first outlet 232.

Referring to the structure of the regeneration heat exchanger 210 in more detail, the regeneration heat exchanger 210, the first communication for discharging the outdoor air sucked into the second inlet 233 to the heat exchanger 220 side. A second communication port 212 into which the indoor air sucked into the cabinet 230 through the sphere 211, the first suction port 231, and the first communication port 211 can be opened and closed. A first damper 213 and a second damper 214 are provided in the second communication port 212 to be opened and closed.

In the regeneration heat exchanger 210, the first communication port 211 and the second communication port 212 are formed, and a boundary wall 215 forming a space in which the heat exchanger 220 is accommodated is formed. It is preferred to be provided.

In addition, the regeneration heat exchanger 210 is provided inside the regeneration heat exchanger 216 having a substantially rectangular box shape, but the shape of the regeneration heat exchanger 216 is not limited thereto.

Here, in the regeneration heat exchanger 216, a first flow path (not shown) through which indoor air discharged to the outside flows and a second flow path (not shown) which flows orthogonal to the first flow path are supplied to the outdoor air. ) Is provided.

In order to increase the heat exchange efficiency of the regenerative heat exchanger 216, the regenerative heat exchanger 216 preferably has a plurality of layered structures in which the first flow passage and the second flow passage are alternately stacked, but is not limited thereto. It is not.

The first flow path communicates with the second communication port 212 and the second discharge port 234, and the second flow path communicates with the first communication port 211 and the second suction port 233. do.

According to the above configuration, the indoor air passing through the first flow path exchanges heat with the outdoor air passing through the second flow path, thereby minimizing heat loss.

The regenerative heat exchanger 216 configured as described above may be installed in various directions according to design conditions, so that any one of the first flow path and the second flow path is orthogonal to the front surface of the cabinet 230. It may be provided on one side inside the cabinet.

For example, one side surface of the regenerative heat exchanger 216 in which the inlet of the second flow path is formed is installed in close contact with or adjacent to the front inner wall of the cabinet 230, and one side surface of the regenerative heat exchanger 216. The second suction port through which the outdoor air flows is formed on the front surface of the cabinet 230 corresponding to the front side. In this case, there is an advantage that can reduce the overall length of the cabinet 230.

On the other hand, the bottom of the cabinet 230, in particular, the lower side of the regeneration heat exchanger 216, the check opening 235 is formed for the repair of the regeneration heat exchanger 216, the check opening 235 is opened and closed Preferably, the door 236 is provided.

Here, a pedestal 237 supporting an edge of the regeneration heat exchanger 216 is provided at an upper edge of the inspection opening 235 so that the regeneration heat exchanger 216 falls when the door 236 is opened. To prevent them.

Unlike the above, the lower portion of the regeneration heat exchanger 216 is made of a metal material, the door 236 may be provided with a magnet for fixing the regeneration heat exchanger 216.

Accordingly, when the door 236 is opened for repair of the regenerative heat exchanger 216, the inspection opening 235 is opened with the regenerative heat exchanger 216 attached to the door 236 without falling down. Through the outside.

Of course, in the above case, it is preferable that the regenerative heat exchanger 216 is made of a light material.

Next, the first damper 213 and the second damper 214 are configured to be opened and closed by rotation.

The opening and closing angles of the first damper 213 and the second damper 214 are adjusted according to the operation mode of the air conditioner.

Here, the combined heat exchange unit according to the present invention, the total ventilation mode for discharging the entire indoor air introduced into the cabinet 230 through the first inlet 231 to the second outlet 234 and the first 1 is operated in an indoor air circulation mode in which the entire air flowing into the cabinet 230 through the inlet 231 is supplied back to the room through the first outlet 232.

To this end, the second damper 214, the entire indoor air flowing into the cabinet 230 through the first inlet 231 during the full ventilation mode operation to the second communication port 212 To guide.

In operation of the indoor air circulation mode, the second damper 214 blocks the second communication port 212 so that the entire indoor air sucked into the first suction port 231 is entirely exchanged with the heat exchanger. To be introduced to (220).

Here, a refrigerant pipe (not shown) through which a refrigerant flows is connected to the heat exchanger 220, and the refrigerant flowing in the heat exchanger 220 absorbs heat from air passing through the heat exchanger 220. Or by dissipating heat into the air passing through the heat exchanger 220, the air conditioning function is performed.

In addition to the above configuration, the interior of the cabinet 230, the suction flow path of the indoor air introduced through the first suction port 231, and is communicated with the suction flow path is discharged through the first discharge port 232 A guide wall 238 may be provided to form an exhaust passage of air.

Here, the heat exchanger 220 is provided in the exhaust passage, and the indoor air introduced through the first suction port 231 and / or the outdoor air supplied through the first communication port 211 is the heat exchanger. After cooling or heating at 220, it is supplied to the room through the second duct 320 connected to the first outlet 232.

In more detail, the guide wall 238 has one end connected to the cabinet inner wall between the first suction port 231 and the first discharge port 232, and the other end of the guide wall 238 is predetermined by the regenerative heat exchanger 210. A spaced distance is formed to form a communication hole (not shown) in which the suction passage and the exhaust passage communicate with each other.

In addition, the guide wall 238 may allow the indoor air introduced through the first suction port 231 to flow into the second communication port 212 of the regenerative heat exchanger 210 during the full ventilation mode operation. It is connected to the second damper 214.

Therefore, the communication hole between the suction passage and the exhaust passage is blocked by the second damper 214.

In addition, the combined heat exchange unit 200 according to the present invention, the first blower 240 for forcing the flow of air from the heat exchanger 220 side to the first outlet 232 side, and the first suction port ( 231 and the second outlet 234, the second blower 250 for forcing the flow of air from the first inlet 231 to the second outlet 234 is preferably provided.

In more detail, the first blower 240 is provided between the heat exchanger 220 and the first outlet 232, that is, in the exhaust passage, and flows in the first inlet 231. Air and / or outdoor air discharged from the first communication port 211 is sucked and blown to the first discharge port 232.

In addition, the second blower 250 is provided in the suction passage to forcibly suck the indoor air through the first suction port 231, and discharges the air to the second communication port 212.

By the above configuration, when the second communication port 212 is shielded by the second damper 214, the air discharged from the second blower 250 is introduced into the exhaust flow path, the heat exchange The heat exchange process in step 220.

When the second damper 214 is connected to the guide wall 238 to block the communication hole between the suction passage and the exhaust passage, the air discharged from the second blower 250 is discharged to the second wall. After entering the regeneration heat exchanger 216 through the communication port 212, it is discharged to the outside through the second outlet 234.

Of course, the second blower 250 may be provided on one side of the second outlet 234 or between the first flow path and the second communication port 212 of the regenerative heat exchanger.

Furthermore, the blowers for forcing the flow of air, may be provided in the duct unit 300 is not provided in the combined heat exchange unit 200.

Hereinafter, an embodiment of each blower will be described in more detail with reference to FIGS. 5A and 5B.

5A and 5B are a perspective view and a cross-sectional view showing a double suction sirocco fan constituting an embodiment of each blower provided in the heat exchange unit for a combined ventilation according to the first embodiment of the present invention.

At least one of the first blower 240 and the second blower 250 may be configured as a sirocco fan.

The sirocco fan is a fan configured to suck air in the axial direction and discharge the air in the circumferential direction. The sirocco fan has a low flow noise generated and is easy to install in the cabinet 230, and discharges static pressure. It has the advantage of increasing the air volume by raising.

In the present embodiment, the sirocco fan is configured with a double suction sirocco fan 260, each of which is formed with suction ports on both sides thereof to increase the air intake amount.

Here, the two-suction sirocco fan 260 is formed in the fan housing 261 and the fan housing 261, each of which has an inlet port 261 a formed on both sides and rotates by a motor. And 262.

In the present embodiment, both the first blower 240 and the second blower 250 are configured with both suction sirocco fan 260, the air intake amount is increased.

The discharge part 261b of the double suction sirocco fan 260 constituting the second blower may include a guide plate 261c for preventing the discharged air from concentrating on the floor or the ceiling of the cabinet. .

In more detail, when the discharge portion 261b of the double suction sirocco fan is installed to be positioned at an upper portion, the air discharged from the discharge portion 261b of the double suction sirocco fan is located at the bottom of the cabinet 230. Is discharged toward.

Therefore, since the flow resistance of the air is increased and the flow of air is concentrated at the bottom of the cabinet, the heat exchange efficiency in the heat exchanger 220 is lowered, and the air flow resistance is increased.

In order to prevent this, a guide plate 261c having a substantially rectangular shape may be provided at a lower edge of the discharge part 261b.

Of course, the first blower 240 and / or the second blower 250 may be composed of a turbo fan, an axial flow fan having a guide guide, or a cross flow fan.

In addition, the first blower 240 is configured to be surrounded by the inner wall of the heat exchanger 220 and the cabinet 230, so that the entire air sucked into the first blower 240 is the heat exchanger 220. ) Is cooled or heated.

To this end, one end of the heat exchanger 220 is connected to the inner wall of the cabinet, that is, the rear surface, to which the guide wall 238 is connected, and the other end is the other side perpendicular to the back of the cabinet to which the guide wall 238 is connected. It is connected to the inner wall, that is, the side inner wall, and constitutes an overall "b" shape.

Of course, the heat exchanger 220 has one end connected to the guide wall 238 and the other end connected to an inner wall of the cabinet 230, that is, a side inner wall opposite to the guide wall 238. It may be configured as, but when configured in the "b" shape as described above has the advantage of increasing the heat exchange area.

As described above, when the heat exchanger 220 is configured to have a "b" shape, at the inlet side of the heat exchanger 220, particularly at a position adjacent to the bent portion, the air flowing into the heat exchanger 220 It is preferable that a flow guide 239 is provided to prevent the bias.

Of course, the flow guide 239 is provided to evenly distribute the air flowing into the heat exchanger 220 on the entire surface of the heat exchanger 220, the suction rather than the shape of the heat exchanger 220 There is a deeper relationship with the flow direction of air flowing into the heat exchanger 220 in the flow path.

Referring to the operation of the combined heat exchange unit 200 according to the present invention configured as described above are as follows.

First, when a user designates an indoor air circulation mode and sets an indoor desired temperature, the first damper 213 and the second damper are connected to the first communication port 211 and the second communication port 212. Shield.

When the first blower 240 and the second blower 250 are driven by a motor, the cabinet 230 is connected to the first air inlet 231 through which indoor air is connected to the first duct 310. Flows inside.

The indoor air introduced into the cabinet 230 passes through the suction passage and enters the heat exchanger 220 provided in the exhaust passage to undergo a heat exchange process.

The air that has undergone the heat exchange process in the heat exchanger 220 is sucked into the second blower 250 and then discharged to the first outlet 232, and the air discharged through the first outlet 232 is Guided into the room by the second duct 320 to cool or heat the room.

Next, when the user selects the entire ventilation mode and sets the desired temperature of the room, the first damper 213 and the second damper 214 are completely opened, and the second damper 214 is Is connected to the guide wall 238.

When the first blower 240 and the second blower 250 are driven by a motor, the cabinet 230 is connected to the first air inlet 231 through which indoor air is connected to the first duct 310. Flows inside.

Here, the entire indoor air introduced into the cabinet 230 flows into the first flow path of the regenerative heat exchanger 216 communicating with the second communication port 212 by the second damper 214. .

At the same time, outdoor air is introduced into the second flow path of the regenerative heat exchanger 216 through the second suction port 233 by the driving of the first blower 240, and passes through the first flow path. After undergoing a heat exchange process with, the heat exchanger 220 is introduced into the heat exchanger 220 through the first communication port 211 and undergoes a heat exchange process. The indoor air introduced into the first flow path undergoes heat exchange with outdoor air flowing along the second flow path, and then is discharged to the outside through the second outlet 234.

The outdoor air that has undergone a heat exchange process in the heat exchanger 220 is supplied to the room by the first blower 240 to ventilate the room and simultaneously cool or heat the room.

The operation mode of the combined heat exchange unit may be manually selected by a user or automatically by a controller connected to a predetermined temperature sensor and a turbidity sensor of indoor air.

On the other hand, the guide wall 238 provided in the combined heat exchange unit 200 according to the first embodiment is provided to smoothly flow the air.

However, when the second blower 250 is installed in the duct part 300, or installed on one side of the second outlet 234 or in the regenerative heat exchanger 210, and the housing of the blower, in particular the second The guide wall may not be provided when the housing of the blower 240 functions as the guide wall.

Next, with reference to Figures 6 to 11 another embodiment of a combined heat exchange unit according to the present invention will be described.

In describing other embodiments of the combined heat exchange unit according to the present invention, the same components and the same reference numerals are used for the same components as the structure of the combined heat exchange unit according to the first embodiment described above. It is omitted.

First, referring to FIG. 6, a second embodiment of a combined heat exchange unit according to the present invention will be described.

In the combined heat exchange unit 200a according to the second exemplary embodiment of the present invention, a pipe accommodating part 270 is provided in the cabinet 230.

The pipe receiving part 270 is between the inner wall of the side surface orthogonal to the other side surface of the cabinet 230 in which the second suction port 233 and the second discharge port 234 are formed, and the regenerative heat exchanger 210. Is formed in, and accommodates the condensate pipe 271 and the refrigerant pipe 272 connected to the heat exchanger for discharging the condensate generated in the heat exchanger 220.

Accordingly, when the cabinet 230 is installed at the ceiling edge of the veranda so that the pipe receiving portion 270 faces the wall surface of the veranda, the processing of the condensation pipe 271 and the refrigerant pipe 272 is performed. It becomes easy.

Other configurations are the same as in the combined heat exchange unit 200 according to the first embodiment described above, and thus description thereof will be omitted.

Next, a third embodiment and a fourth embodiment of a combined heat exchange unit according to the present invention having a structure in which the first blower 240 and the second blower 250 are driven by one motor are shown in FIG. 7. It will be described with reference to FIG.

Referring to FIG. 7, in the combined heat exchange unit 200b according to the third embodiment of the present invention, the first blower 240 and the second blower 250 pass through the guide wall 238. It is connected to the rotating shaft of the motor 280 is installed.

However, there is a problem in that the first blower 240 and the second blower 250 are each composed of a blower having the same structure, for example, the aforementioned double suction sirocco fan 260.

In other words, the air discharge directions of the double suction sirocco fan constituting the first blower 240 and the double suction sirocco fan constituting the second blower 250 are perpendicular to the bottom of the cabinet 230. When installed in a state of being rotated 180 degrees with respect to the axis, when the blade 262 rotates in the same direction, either of the two suction sirocco fan will not properly perform the air blowing.

In order to prevent this, between the second blower 250 and the motor 280. Gears 281 and 282 for changing the direction of rotation are meshed with each other, and each of the gears 281 and 282 is connected to the rotation shaft of the motor 280 and the rotation shaft of the second blower 250.

Obviously, the gears 281 and 282 may be provided between the first blower 240 and the motor 280.

And, in this embodiment, one end is connected to the guide wall 238, the other end is connected to the inner wall of the cabinet 230 opposed to the guide wall 238, the heat exchanger is configured in a "|" shape 200a is provided.

Next, referring to FIG. 8, in the combined heat exchange unit 200c according to the fourth embodiment of the present invention, the first blower 240 and the second blower 250 are the guide wall 238. It is connected to the rotating shaft of the motor 280 is installed through.

However, the double suction sirocco fan constituting the first blower 240 and the double suction sirocco fan constituting the second blower 250 are installed in a state of point symmetry with each other.

Therefore, the same gears as in the combined heat exchange unit 200c according to the fourth embodiment of the present invention may not be provided.

Other configurations are the same as in the combined heat exchange unit 200 according to the first embodiment described above, and thus description thereof will be omitted.

Next, with reference to FIG. 9, FIG. 10A, and FIG. 10B, the 5th Example of the heat exchange unit for ventilation according to this invention is described.

9, the combined heat exchange unit according to the fifth embodiment of the present invention includes a first blower 240a configured to include at least one X-fan and at least one X-fan. The second blower 250a is provided.

Here, the function and positional relationship of the first blower 240a and the second blower 250a are the same as in the combined heat exchange unit according to the first embodiment.

10A and 10B, the first blower 240a and the second blower 250a include an X-fan assembly having the at least one X-fan 280.

In the present embodiment, the X-fan assembly has a multi-stage structure in which a plurality of X-fans are axially connected.

In more detail, the X-fan 280, the rotating shaft 281 is coupled to the drive motor (not shown), the cylindrical hub 282 fixed to the end of the rotating shaft 281, It includes blades 283 formed in a spiral direction on the outer peripheral surface of the hub 282. When the X-fan assembly is viewed from the side, the blades form an 'X' shape.

Here, the hub 282 is formed in a hollow shape with the inlet and outlet ends open, and four ribs 284 are provided inside the hollow part of the hub 282 for coupling with the rotation shaft 281 and securing support strength. It is formed at 90 ° intervals in the circumferential direction.

In addition, instead of forming the ribs 284 inside the hub 282, a spiral auxiliary blade may be formed to blow air through the inside of the hub 282.

The blades 283 are formed in a substantially semicircular curved shape. The blades 283 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, when the blower fan of the present invention is injection molded, a partition line formed by upper and lower molds is connected to the outer circumferential surface of the hub 282 at the inlet end of each blade 283 to connect the outlet end of another blade adjacent to the blade. 285 is formed.

In addition, the blade 283, the thickness is not constant, the closer to the hub side is formed thicker than the tip side of the radial direction is good for vibration characteristics, which is to center the center of gravity of the blade 283 inward This is because the vibration can be reduced by reducing the moment generated during the rotation of the blower fan.

In addition, when the blade 283 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. Since the air is collected and discharged at the outlet side, the static pressure of the discharged air can be increased.

On the other hand, in consideration of the narrow space in which the first blower 240a and the second blower 250a are installed, instead of shortening the rotation axis length of the hub 282 of the X-fan assembly, the hub ( The number of blades provided on the outer circumferential surface of 282 may be two or more. That is, the multi-blade X-fan assembly having a plurality of blades on the outer circumferential surface of the hub 282 is preferably used.

On the other hand, the second outlet 234 may be provided with an auxiliary blower 250b for improving the blowing force of the air discharged to the outside. The auxiliary blower 250b may be provided between the first flow path and the second damper 214.

Although not shown, a separate auxiliary blower 250b may be provided on one side of the second suction port 233 or between the second flow path and the first damper to improve the blowing force of air introduced into the room.

Next, with reference to FIG. 11, the ventilation combined heat exchange unit 200e which concerns on 6th Embodiment of this invention is demonstrated.

Referring to FIG. 11, the second blower 250 which communicates the first suction port 231, the first flow path of the regenerative heat exchanger, and the second discharge port 234 is connected to the second damper 214. It is provided between the second communication port 212 is opened and closed by the first flow path of the regeneration heat exchanger (216).

In addition, the guide wall 238 provided in the combined heat exchange unit 200 according to the first embodiment is omitted.

On the other hand, the inside of the cabinet 230 is provided with a turbo fan 240b surrounded by the heat exchanger 220 and the inner wall of the cabinet 230.

The turbo fan 240b is preferably configured to include at least two stages of the fan.

In more detail, the turbo fan 240b includes a first stage fan 241b accommodated in the fan housing and a second stage fan 242b connected in series to a rotation shaft of the first stage fan 241b. .

The first stage fan 241b sucks and pressurizes the air on the heat exchanger 220 side and discharges the air to the internal flow path 243b formed in the fan housing.

The second stage fan 242b is configured to suck and pressurize the air pressurized by the first stage fan 241b and discharged to the internal flow passage 243b and then discharge the air toward the first outlet 232.

Accordingly, the static pressure of the air discharged from the turbo fan 240b increases, and the flow force of the air is improved.

Other configurations are the same as or similar to those of the combined heat exchange unit 200 according to the first embodiment described above, and thus descriptions thereof will be omitted.

However, although the arrangement structure of the regenerative heat exchanger 216 and the shape of the boundary wall 215 are slightly changed, it is a matter that can be changed from the ventilation combined heat exchange unit 200 according to the first to fifth embodiments. .

In addition to the embodiments described above, the fact that the present invention can be embodied in other specific forms without departing from the spirit and scope will be apparent to those skilled in the art.

Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above detailed description, but may vary within the scope of the appended claims and their equivalents.

The combined heat exchange unit of the air conditioner according to the present invention having the above configuration has the following effects.

First, the combined heat exchange unit according to the present invention, as described above, can perform not only the cooling and heating functions of the indoor space, but also the ventilation function of the room at the same time, thereby providing a more comfortable environment for the indoor residents.

Second, according to the present invention, the combined heat exchange unit according to the present invention, the regeneration heat exchanger for minimizing heat loss during indoor ventilation and the heat exchanger for heating and cooling the room is accommodated in one cabinet, so that the regeneration heat exchanger and the indoor unit are provided separately Compared with this, the installation is easy and the installation cost is reduced.

Third, the combined heat exchange unit according to the present invention can be operated in the indoor air circulation mode and the entire ventilation mode, it is possible to maintain the indoor environment in an optimal state.

Fourth, the combined heat exchange unit according to the present invention is provided with a first blower and a second blower having a structure in which the discharge static pressure of air is maximized, and the blowing force is improved.

Fifth, since the first blower and the second blower provided in the combined heat exchange unit according to the present invention may be driven by a single motor, the structure is simple, the productivity is improved, and the space utilization inside the cabinet is improved.

Sixth, since the combined heat exchange unit according to the present invention can be installed on the ceiling of the veranda, the utilization of the indoor space is improved, and it is not necessary to be embedded in the ceiling of the room as in the prior art and is easy to install.

Claims (28)

A first inlet for introducing indoor air, a first outlet for discharging air into the room, a second inlet for introducing outdoor air for ventilation, and a second for discharging indoor air introduced into the first inlet to the outside A cabinet having an outlet; A heat exchanger provided at one side of the cabinet and configured to control a temperature of air supplied into the room through the first outlet; And It is provided on the other side of the inside of the cabinet, and comprises a regenerative heat exchanger for mutual heat exchange between the outdoor air introduced into the second suction port and the indoor air discharged to the outside, And an indoor air circulation mode for resupplying the entire indoor air introduced into the cabinet to the room, and a combined heat exchange unit operated in a full ventilation mode for discharging the entire indoor air introduced into the cabinet to the outside through the first suction port. The method of claim 1, The regenerative heat exchanger, A first communication port for discharging outdoor air sucked into the second suction port to the heat exchanger; A second communication port through which a part of indoor air sucked into the cabinet is introduced through the first suction port; A first damper for selectively opening and closing the first communication port; And And a second damper provided to be opened and closed at the second communication port so that the entirety of the indoor air introduced through the first suction port in the entire ventilation mode is introduced into the second communication port. Heat exchange unit. The method of claim 2, The first damper and the second damper is a combined heat exchange unit, characterized in that the opening and closing by rotating based on one end. The method of claim 2, The second damper, The entire indoor air introduced into the cabinet through the first inlet is guided to the second communication port during the entire ventilation mode operation, and the indoor air is introduced into the cabinet through the first suction port during the indoor air circulation mode operation. And the second communication port is blocked such that air flows to the heat exchanger side. The method of claim 4, wherein The cabinet, And a guide wall communicating with the suction channel of the indoor air introduced through the first suction port and the suction wall and forming an exhaust channel of the air discharged through the first discharge port. . The method of claim 5, wherein The guide wall is One end is connected to an inner wall of the cabinet between the first inlet port and the first outlet port, and the other end is spaced apart from the regeneration heat exchanger by a predetermined distance to form a communication hole for communication between the suction channel and the exhaust oil unit. Combined heat exchange unit. The method of claim 6, The second damper, And a ventilation heat exchange unit connected to the guide wall to block the communication hole between the suction flow path and the exhaust flow path during the entire ventilation mode operation. The method of claim 5, wherein A first blower provided between the heat exchanger and the first outlet, for forcing a flow of air from the heat exchanger side to the first outlet side; And And a second blower provided in the suction passage and forcing the flow of air from the first suction port to the second discharge port when the first suction port and the second discharge port communicate with each other. The method of claim 4, wherein A first blower provided between the heat exchanger and the first outlet, for forcing a flow of air from the heat exchanger side to the first outlet side; And And a second blower for forcing a flow of air from the first suction port to the second discharge port when the first suction port and the second discharge port communicate with each other. The method of claim 9, The second blower, Combined heat exchange unit, characterized in that provided on one side of the second outlet. The method of claim 9, The second blower, Combined heat exchange unit, characterized in that provided on one side of the second communication port. The method of claim 9, The heat exchange unit for both ventilation and use, characterized in that the first blower and the second blower are driven by the same motor. The method of claim 12, The first blower and the second blower is a combined heat exchange unit, characterized in that composed of a sirocco fan. The method of claim 13, The sirocco fan, A combined heat exchange unit, characterized in that composed of a double suction sirocco fan, each of which is formed with a suction port. The method of claim 13, And the gears provided on the shaft of the motor such that the first blower and the second blower rotate in opposite directions to each other. The method of claim 9, At least one of the first blower and the second blower, the heat exchange unit for a dual purpose ventilation, characterized in that it comprises at least one X-fan comprising a spiral blade. The method of claim 2, The regenerative heat exchanger, And the first communication port and the second communication port are formed, and further comprising a boundary wall forming a space in which the heat exchanger is accommodated. The method of claim 2, The regenerative heat exchanger, It comprises a regenerative heat exchanger having a first flow path for the indoor air discharged to the outside flows, and a second flow path orthogonal to the first flow path for the outdoor air to be supplied to the room flows, and substantially consists of a rectangular box shape. Combined heat exchange unit characterized in that the ventilation. The method of claim 18, The regenerative heat exchanger, A combined heat exchange unit, characterized in that one side is adjacent to one side of the inside of the cabinet. The method of claim 1, The cabinet A check hole formed below the regenerative heat exchanger for repair of the regenerative heat exchanger; And Combined heat exchange unit characterized in that it comprises a door provided to be opened and closed in the inspection port. The method of claim 20, The lower part of the regenerative heat exchanger is made of a metal material, and the door is equipped with a ventilation heat exchange unit, characterized in that the magnet is attached to the regenerative heat exchanger. The method of claim 20, The cabinet, And a pedestal for supporting the edge of the regenerative heat exchanger. The method of claim 1, The cabinet, And a flow guide provided on an inflow side of the heat exchanger to prevent a bias of air flowing into the heat exchanger. The method of claim 1, The cabinet, The first inlet and the first outlet is formed on one side, the second inlet and the second outlet is formed on the other side opposite to the one side, characterized in that substantially rectangular box shape Combined heat exchange unit. The method of claim 24, The cabinet, And the first intake port and the first exhaust port are installed on the ceiling of the veranda so as to face the interior. The method of claim 25, The cabinet, It is installed on the edge of the veranda ceiling, the heat exchange unit for a combined ventilation, characterized in that the close contact with the wall of the veranda. The method of claim 24, It is formed between the other side and the regenerative heat exchanger, and further comprises a pipe receiving portion for receiving a condensate pipe for discharging the condensate generated in the heat exchanger and a refrigerant pipe connected to the heat exchanger Heat exchange unit. The method of claim 1, The cabinet, And a preheater for heating the outdoor air supplied to the regenerative heat exchanger through the second suction port.

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