KR100550754B1 - Ventilator - Google Patents

Abstract

The present invention relates to a ventilator for exhausting indoor air to the outside as well as ventilating the indoor space by sucking the outdoor air into the room, and particularly, a heat exchange unit including a heat exchanger, and an exhaust fan capable of discharging indoor air. The included outdoor unit and the indoor unit including the air supply fan that can suck the outdoor air can be assembled separately so that the operator can easily transport and install the ventilation device. There is an advantage in that the internal components included in the unit can be easily inspected and repaired.

Description

Ventilation device {VENTILATOR}

The present invention relates to a ventilator for exhausting indoor air to the outside as well as ventilating the indoor space by sucking the outdoor air into the room.

In general, the air in an enclosed space increases the carbon dioxide content over time due to the breathing of the living organisms, which interferes with the breathing of the living creatures, especially when many people stay in a narrow space such as an office or a vehicle. Ventilators are widely used to replace polluted air with fresh air from outside.

Such a ventilation device is configured to include a blower for forcibly blowing indoor air and outdoor air, thereby discharging the contaminated indoor air to the outdoor side and repeating the process of sucking fresh outdoor air to the indoor side.

By the way, when the cooling and ventilation operation is performed indoors at the same time, as the cooled indoor air is exhausted and the hot outdoor air is sucked in, the temperature of the indoor air rises relatively higher than the cooling temperature, thereby decreasing the cooling efficiency, and heating and ventilating indoors. At the same time, the heated indoor air is exhausted and the cold outdoor air is sucked in. Therefore, the temperature of the indoor air is lower than the heating temperature, thereby reducing the heating efficiency.

Therefore, a heat exchanger for providing a heat exchange action between the indoor air and the outdoor air is installed separately in the ventilation device as described above.

Specifically, Japanese Patent Application Laid-Open No. 11-287492 discloses an outdoor air suction hole 4a in which outdoor air is sucked into one side of a rectangular case 2 and indoor air discharged as shown in FIG. 1. The ball 6b is formed, the outdoor air discharge hole 4b through which the outdoor air is discharged, and the indoor air suction hole 6a through which the indoor air is sucked, are formed in the center of the case 2. The case is formed so that the heat exchanger 8 is formed so as to cross the flow path through which the outdoor air flows separately, and is located inside the outdoor air discharge hole 4b and the indoor air discharge hole 6b. An air supply fan 10 and an exhaust fan 20 are installed at both corner portions of (2).

In addition, an air path is formed in the case 2 to guide the outdoor air sucked from the outdoor air suction hole 4a to the heat exchanger 8 to be discharged to the outdoor air discharge hole 6b. An air path is formed to guide the indoor air sucked from the indoor air suction hole 6a to the heat exchanger 8 so as to be discharged to the indoor air discharge hole 6b.

At this time, the heat exchanger (8) is freely detachable through the check opening (2a) formed on the central surface of the case (2).

On the other hand, Japanese Patent Application Laid-Open No. 09-137984, as shown in Figure 2 and 3, the outdoor air suction hole (34a) and the indoor air discharged to the indoor air is sucked outdoor air on one side of the rectangular case 32 The discharge hole 36b is formed, the outdoor air discharge hole 34b through which the outdoor air is discharged, and the indoor air suction hole 36a through which the indoor air is sucked, are formed in the center of the case 32. And a heat exchanger 38 separately formed with a flow path through which indoor air flows, the air supply fan 40 for sucking outdoor air and an exhaust fan 45 for discharging indoor air are respectively provided in the case 32. It is installed to be located in the center of one side and the other side of the.

In addition, the case 32 guides the outdoor air sucked from the outdoor air suction hole 34a to the heat exchanger 38, or the indoor air sucked from the indoor air suction hole 36a. Partition parts (37a, 37b) for guiding to (38) is provided, to guide the outdoor air discharged through the heat exchanger (38) to be discharged to the outdoor air discharge hole (34b), or the heat exchanger (38) Ducts (39a, 39b) for guiding the indoor air passing through the discharge to the indoor air discharge hole (36b) is installed to form a flow path for the outdoor air and the indoor air flows separately.

At this time, the heat exchanger 38 is installed detachably to the case 32 through the check opening 32a formed at one side of the case 32, the corner portion of the heat exchanger 38 is the partition portion ( 37a and 37b are fitted to slide at both ends and the rails 35 formed on upper and lower surfaces of the case 52, respectively.

However, the ventilation apparatus according to the prior art is configured to include various components such as a heat exchanger, an air supply fan, an exhaust fan, etc. inside the case, so that the product is not only heavy but also bulky, so that the worker may use the product such as a wall or a ceiling. There is a problem that is difficult to carry and install.

In addition, since the air supply fan and the exhaust fan and the motor for driving the same are installed in the case in which the heat exchanger is installed, the ventilation apparatus according to the related art uses the case to check the air supply fan, the exhaust fan and the motor which are various internal components. It is difficult to inspect and repair various internal components due to disassembly.

Accordingly, an object of the present invention is to provide a ventilator that allows a worker to easily transport and install the product.

In addition, an object of the present invention is to provide a ventilation device that can easily check and repair various internal components installed to be embedded in a case.

In one aspect of the present invention for achieving the above object is a heat exchange unit with a heat exchanger is built in the heat exchanger to effect the heat exchange action while the outdoor air and the indoor air crosses along separate first and second flow paths, and on one side of the heat exchange unit It is detachably installed so that outdoor air suction hole for sucking outdoor air and indoor air discharge hole for discharge of indoor air are formed, and an outdoor unit having a first blower fan installed therein and a detachable installation on the other side of the heat exchange unit. To provide a ventilation device characterized in that the outdoor air discharge hole for the outdoor air discharged and the indoor air suction hole for suctioning the indoor air is formed and the second air blowing fan is installed therein.

In the present invention, the outdoor unit is formed with an outdoor air flow guide for guiding the outdoor air introduced into the outdoor air suction hole to the first flow path of the heat exchanger, and the indoor unit includes the indoor air introduced into the indoor air suction hole. Characterized in that the indoor air flow path guides to the second flow path of the heat exchanger is formed.

In the present invention, the first blowing fan is an exhaust fan installed inside the indoor air discharge hole to discharge indoor air, and the second blowing fan is an air supply fan installed inside the outdoor air discharge hole to suck outdoor air. It is characterized by.

Here, the outdoor air suction hole is formed on one side of one side of the outdoor unit, the outdoor air discharge hole is formed in the center of one side of the indoor unit, the indoor air suction hole is formed on the other side of one side of the indoor unit, The indoor air discharge hole is preferably formed in the center of one surface of the outdoor unit.

In the present invention, a guide groove and a guide rail engaging with the guide groove are formed between the outdoor unit and the heat exchange unit such that the outdoor unit is slidably detached from the heat exchange unit. The other side of the outdoor unit facing the outdoor air suction hole is formed. The guide rail is formed in the guide groove to be engaged with the guide rail is formed on one side of the heat exchange unit.

Further, in the present invention, the guide rail is formed on one side and the bottom of the outdoor unit facing the outdoor air suction hole so that the outdoor unit slides to the heat exchange unit, and the guide rail is formed on one side and the bottom side of the heat exchanger. Guide grooves are formed to be engaged with each other, characterized in that the case of any one of the outdoor unit or the heat exchange unit is installed to be located outside the other case.

In addition, a guide rail is formed on one side and a bottom of the indoor unit facing the indoor air suction hole so that the indoor unit is slidably detached from the heat exchange unit. The guide groove is formed, characterized in that the case of any one of the indoor unit or the heat exchange unit is installed to be located outside the other case.

Further, in the present invention, in order to prevent leakage of outdoor air or indoor air between the outdoor unit and the indoor unit and the heat exchange unit, sealing guide grooves are formed on one side of the outdoor unit and the indoor unit, respectively, and both sides of the heat exchanger. A guide rail is formed at an end to engage the sealing guide groove, and the sealing guide groove is formed at each end of the outdoor air flow guide and the indoor air flow guide.

Here, the assembling direction of the sealing guide groove formed in the outdoor air flow path guide and the sealing guide rail formed at one end of the heat exchanger is the same as the sliding assembling direction of the outdoor unit and the heat exchange unit, or in the indoor air flow path guide. The assembling direction of the formed sealing guide groove and the sealing guide rail formed at the other end of the heat exchanger is formed to be the same as the sliding assembly direction of the indoor unit and the heat exchange unit.

Of course, the assembling direction of the sealing guide groove formed in the outdoor air flow path guide and the sealing guide rail formed at one end of the heat exchanger is the sealing guide groove formed in the indoor air flow path guide and the sealing guide rail formed at the other end of the heat exchanger. May be formed in the same direction.

The features and advantages of the present invention may be better understood with reference to the following accompanying drawings in conjunction with the following detailed description of embodiments of the invention, of which:

1 is a perspective view showing an example of a ventilation apparatus according to the prior art,

Figure 2 is a perspective view showing another example of the ventilation device according to the prior art,

3 is a cross-sectional view showing another example of the ventilation apparatus according to the prior art,

4 is an exploded perspective view showing a unit of the ventilation device according to the present invention;

5 is a perspective view showing a ventilation device according to the present invention,

6 is a plan view showing a ventilator according to the present invention,

7 is a cross-sectional view taken along the line A-A of FIG.

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 6.

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

Figure 4 is an exploded perspective view of the unit of the ventilator according to the present invention, Figures 5 and 6 are a perspective view and a plan view showing a ventilator according to the present invention, Figures 7 and 8 are AA and BB of Figure 6 Sectional view along the line.

Ventilation device according to the invention is installed in the heat exchange unit 60 and the one side of the heat exchange unit 60 and the heat exchange unit 60 is a heat exchange action as the outdoor air and indoor air cross flow as shown in Figure 4 to 6 And an outdoor unit 70 which sucks outdoor air and discharges indoor air, and a detachable unit installed on the other side of the heat exchange unit 60 to suck indoor air and discharge outdoor air. 80).

In detail, the heat exchange unit 60 is provided with a heat exchanger 64 configured to stack a plurality of heat exchange units 64A and 64B in a heat exchange case 62 having one side and the other side open. The first and second heat exchange units 64A and 64B provided with guide ribs 64b of different shapes are alternately stacked on one surface of the heat exchange membrane 64a in a rectangular or hexagonal shape so that outdoor air and indoor air are alternately stacked. Form first and second flow paths separately.

Here, the heat exchanger 64 guides the flow in the direction in which the outdoor air and the indoor air cross each other, or guides the flow in the direction in which the outdoor air and the indoor air oppose each other, so that the heat exchange action is performed.

At this time, the outdoor air is introduced from the lower side of one side of the heat exchanger 64 and discharged to the upper side of the other side of the heat exchanger 64, and the indoor air is introduced from the lower side of the other side of the heat exchanger 64 to exchange the heat. It is discharged to one side of the upper portion 64.

On the other hand, the heat exchange case 62 has an inspection opening (62a) is opened at the front end so that the heat exchanger (64) can be installed detachably sliding therein, the inspection opening (62a) is a plate-shaped inspection case The upper and lower ends of the heat exchanger 64 are fitted into the guide grooves 68 formed in the upper and lower surfaces of the heat exchange case 62, respectively, so that the upper and lower ends of the heat exchange case 62 are slidably detachable. The heat exchanger 64 may be easily detached from the heat exchange case 62, and may prevent leakage of air between the upper and lower ends of the heat exchanger 64 and the heat exchange case 62. .

Of course, in the state in which the outdoor unit 70 and the indoor unit 80 are assembled to the heat exchange unit 60, the heat exchanger 64 is removed through the check opening 62a, and then the outdoor unit 70 is removed. And various components installed inside the indoor unit 80.

Next, the outdoor unit 70 has an indoor air suction hole 72a for sucking outdoor air on one side and an indoor case 72 having an indoor air discharge hole 72b for discharging indoor air. It is installed to further include an exhaust fan 74 for discharging air.

Of course, a suction fan (not shown) for sucking outdoor air may be installed instead of the exhaust fan 74.

In addition, the outdoor unit 70 is configured to further include an outdoor air flow path guide 75 for guiding the outdoor air sucked through the outdoor air suction hole 72a to the first flow path of the heat exchanger 64. The outdoor air flow path guide 75 allows the outdoor air sucked from the inside of the outdoor unit 70 and the indoor air exhausted to flow in a separate space, and in particular, the outdoor air is one side of the heat exchanger 64. Guide it to the bottom.

Here, the outdoor air suction hole (72a) is formed to be biased to one side of one side of the outdoor case 72, the indoor air discharge hole (72b) is formed in the center of one side of the outdoor case 72, The outdoor air suction hole 72a and the indoor air discharge hole 72b are installed to be connected to an outdoor duct (not shown) connected to the outdoor side.

In addition, the exhaust fan 74 is installed inside the indoor air discharge hole 72b. The exhaust fan 74 uses a sirocco fan that sucks indoor air in an axial direction and discharges it in a radial direction. The fan 74 is installed to be inserted into the fan housing 76 installed inside the indoor air discharge hole 72b, and a motor 77 driving the exhaust fan 74 is provided at one side of the fan housing 76. It is installed to be supported by the motor support 78.

In this case, the motor 77 is installed to face one surface of the heat exchange case 62 in which the check hole 62a is formed, and the exhaust fan 74 and the motor 77 are separated from the fan housing 76 together. Since the user can remove the exhaust fan 74 and the motor 77 through the inspection port 62a, the user can easily inspect and repair the exhaust fan 74 and the motor 77.

The outdoor unit 70 configured as described above is slidably installed on one side of the heat exchange unit 60, and a guide groove 92 is formed between the other side of the outdoor case 72 and one side of the heat exchange case 72. And guide rails 94 engaged with the guide grooves 92 are formed.

Specifically, the upper side and the lower side of the outdoor case 72 is opposed to the outdoor air suction hole 72a, the guide rail 94 is formed long in the longitudinal direction, the upper side, the lower side of the heat exchange case 62 The guide groove 92 which is engaged with the guide rail 94 is formed long in the longitudinal direction, the outdoor unit 70 in one direction with respect to the heat exchange unit 60, that is, in the width direction of the heat exchange case 62 It is installed to be detachable sliding.

Of course, any one of the outdoor case 72 or the heat exchange case 62 may be installed to be located outside the other.

In this case, when the outdoor unit 70 is completely assembled to the heat exchange unit 60, the rear end of the guide groove 92 and the guide rail 94 are blocked so that the outdoor unit 70 no longer moves. It is preferable to be.

Next, the indoor unit 80 has an outdoor air discharge hole 82a for discharging outdoor air on the other side and an indoor case 82 having an indoor air suction hole 82b for sucking outdoor air. It is installed to further include an air supply fan 84 for sucking air.

Of course, an exhaust fan (not shown) for discharging indoor air may be installed instead of the air supply fan 84.

In addition, the indoor unit 80 is configured to further include an indoor air flow path guide 85 for guiding the indoor air sucked through the indoor air suction hole 82b to the second flow path of the heat exchanger 64. The outdoor air flow path guide 85 allows the outdoor air sucked in the outdoor unit 70 and the indoor air exhausted to flow in separate spaces, and in particular, the indoor air is on the other side of the heat exchanger 64. Guide it to the bottom.

Here, the outdoor air discharge hole (82a) is formed in the center of the other side of the indoor case 82, the indoor air suction hole (82b) is formed to be biased to one side of the other side of the indoor case (82), The outdoor air discharge hole 82a and the indoor air suction hole 82b are installed to be connected to an indoor duct (not shown) connected to the indoor side.

In addition, the air supply fan 84 is installed inside the outdoor air discharge hole 82a. The air supply fan 84 sucks indoor air in the axial direction and discharges it in the radial direction, similar to the exhaust fan 74. A sirocco fan is used, and the air supply fan 84 is installed to be inserted into the fan housing 86 installed inside the outdoor air discharge hole 82a. The air supply fan 84 is provided at one side of the fan housing 86. A motor 87 for driving the motor 87 is installed to be supported by the motor support 88.

At this time, the motor 87 is installed to face one surface of the heat exchange case 62 in which the check hole 62a is formed, similarly to the motor 77 connected to the exhaust fan 74, and the air supply fan 84 and the motor. Since the 87 is installed to be separated together from the fan housing 86, the user can easily remove the air supply fan 84 and the motor 87 through the check opening 62a to easily check and repair.

The indoor unit 80 configured as described above is also installed to be slidably assembled on the other side of the heat exchange unit 60 like the outdoor unit 70, and one side surface of the indoor case 82 and the heat exchange case 62 are provided. Between the other side of the guide groove 96 and the guide rail 98 to be engaged with the guide groove 96 is formed.

Specifically, the upper and lower side guide rails 98 are formed in the longitudinal direction on one side of the indoor case 82 facing the outdoor air discharge hole 82a and the indoor air suction hole 82b, and the heat exchange case On the other side of the upper and lower surfaces, the guide grooves 96 engaged with the guide rails 98 are formed long in the longitudinal direction, and the indoor unit 70 is in one direction with respect to the heat exchange unit 60. It is installed to be removable in the width direction of the case 62.

Of course, any one of the indoor case 82 or the heat exchange case 62 may be installed to be located outside the other.

In this case, when the indoor unit 70 is completely assembled to the heat exchange unit 60, the rear ends of the guide grooves 96 and the guide rails 98 are blocked so that the indoor unit 70 no longer moves. It is preferable to be.

As such, the outdoor unit 70 and the indoor unit 80 are assembled to the heat exchange unit 60, and then the outdoor unit 70 and the heat exchange unit 60, or the indoor unit 80 and the heat exchange unit 60. Separate sealing may be performed to prevent the outdoor air or the indoor air from leaking out.

However, even if the outdoor unit 70 and the indoor unit 80 are assembled to the heat exchange unit 60, respectively, air is transferred to the outside between the outdoor unit 70 and the indoor unit 80 and the heat exchange unit 60. In addition to preventing leakage, it is also possible to prevent the mixing of outdoor and indoor air.

For example, sealing guide grooves 102a and 102b are formed in the longitudinal direction on one side surface of the outdoor unit 70 and the other side surface of the indoor unit 80, respectively, and at both ends of the heat exchanger 64. Sealing guide rails 104a and 104b are formed in the longitudinal direction so that the sealing guide grooves 102a and 102b are engaged. The sealing guide grooves 102a and 102b are formed at the ends of the outdoor air flow path guide 75 and the indoor air flow path, respectively. It is formed at the end of the guide (85).

At this time, the assembling direction of the sealing guide groove 102a formed in the outdoor air flow path guide 75 and the sealing guide rail 104a formed at one end of the heat exchanger 64 is the outdoor unit 70 and the heat exchange unit ( It is formed in the same sliding assembly direction of 60 so that the outdoor unit 70 is assembled to the heat exchange unit 60 and the heat exchanger 64 is supported by the outdoor unit 70.

In addition, the assembly direction of the sealing guide groove (102b) formed in the indoor air flow path guide 85 and the sealing guide rail (104b) formed at the other end of the heat exchanger (64) is the indoor unit 80 and the heat exchange unit ( It is formed in the same sliding assembly direction of 60 so that the indoor unit 80 is assembled to the heat exchange unit 60 and the heat exchanger 64 is supported by the indoor unit 80.

At this time, the heat exchange with the sealing guide groove 102a formed in the outdoor air flow path guide 75 so that an operator can assemble the outdoor unit 70 and the indoor unit 80 to the heat exchange unit 60 in one direction. An assembly direction of the sealing guide rail 104a formed at one end of the machine 64 is a sealing guide groove 102b formed at the indoor air flow path guide 85 and a sealing guide rail formed at the other end of the heat exchanger 64. It is preferable that the assembling direction of 104b be formed in the same manner.

Of course, even though the guide grooves 92 and 96 and the guide rails 94 and 98 formed between the outdoor case 72 and the indoor case 82 and the heat exchange case 62 are omitted, the outdoor air flow path guide 75 and The sealing guide grooves 102a and 102b and the sealing guide rails 104a and 104b formed between the indoor air flow path guide 85 and the heat exchanger 64 allow the outdoor unit 70 and the indoor unit 80 to exchange the heat exchange unit. Sliding assembly can be carried out to 60, respectively.

Looking at the assembly process and operation state of the ventilation device configured as described above, as follows.

First, the heat exchange unit 60 and the outdoor unit 70 and the indoor unit 80 are separately configured to be easily transported and installed to a desired position by the user. The heat exchange unit 60 is disposed on one side and the other side of the outdoor unit. When the unit 70 and the indoor unit 80 are assembled by sliding, inspection and repair of the internal components can be easily disassembled.

Specifically, the guide rail 94 formed on the other side of the outdoor case 72 is assembled to the guide groove 92 formed on one side of the heat exchange case 62 so that the outdoor unit 70 is the heat exchange unit. The guide rail 98 is assembled to the 60, the guide rail 98 formed on one side of the indoor case 82 is assembled to the sliding guide groove 96 formed on the other side of the heat exchange case 62 is the indoor unit 80 This heat exchange unit 60 is assembled.

At this time, since the outdoor case 72 and the heat exchange case 62 and the indoor case 82 and the heat exchange case 62 are installed to interlock with each other, the outdoor unit 70 and the heat exchange unit 60 and the indoor unit are interlocked. It is possible to prevent air from leaking between the 80 and the heat exchange unit 60, and further improve the blowing efficiency and the heat exchange efficiency.                 

Next, the heat exchanger 64 is slidingly mounted through the check hole 62a in the heat exchange case 62, and sealing guide rails 104a and 104b are formed at both ends of the heat exchanger 64, respectively. The outdoor air flow path guide 75 and the indoor air flow path guide 85 are fitted to the sealing guide grooves 102a and 102b respectively formed at the ends of the sliding assembly.

Of course, the heat exchange unit 60 is the outdoor unit 70 when the outdoor unit 70 and the indoor unit 80 are assembled while the heat exchanger 64 is installed inside the heat exchange case 62. And the indoor unit 80 is assembled to the heat exchange unit 60, and the heat exchanger 64 is directly assembled to the outdoor unit 70 and the indoor unit 80.

Therefore, since the heat exchanger 64 is installed to be directly engaged with the outdoor air flow path guide 75 and the indoor air flow path guide 85, it prevents mixing of outdoor air and indoor air, and furthermore, blows air efficiency and heat exchange. The efficiency can be improved.

Referring to the operation of the ventilation unit in which the outdoor unit 70, the heat exchange unit 60, and the indoor unit 80 are assembled as described above, when the air supply fan 84 is operated as shown in FIG. The outdoor air introduced through the ball (72a) is guided by the outdoor air flow path guide 75 and undergoes heat exchange with indoor air while passing through the heat exchanger (64), and then passes through the air supply fan (84). It is introduced into the room through the indoor air discharge hole (82a).

On the other hand, when the exhaust fan 74 is operated as shown in Figure 8, the indoor air introduced through the indoor air suction hole (82b) is guided by the indoor air flow path guide 85 to the heat exchanger ( The heat exchange action is performed with the outdoor air while passing through 64, and then passes through the exhaust fan 74 and is discharged to the outside through the outdoor air discharge hole 72b.

While repeating the above process, the ventilator can keep the room comfortable by discharging the indoor air polluted to the outside and introducing fresh outdoor air into the room.

In the above, the present invention has been described in detail with reference to the ventilation device based on the embodiments of the present invention and the accompanying drawings. However, the scope of the present invention is not limited by the above embodiments and drawings, and the scope of the present invention will be limited only by the contents described in the claims below.

Claims (16)

A heat exchange unit having a heat exchanger in which outdoor air and indoor air cross each other along the first and second flow paths and perform a heat exchange action; An outdoor unit detachably installed at one side of the heat exchange unit and having an outdoor air suction hole through which outdoor air is sucked and an indoor air discharge hole through which indoor air is discharged, and a first blowing fan installed therein; Removably installed on the other side of the heat exchange unit, the outdoor air discharge hole for discharging the outdoor air and the indoor air suction hole for suctioning the indoor air is formed, and the interior unit is characterized in that it consists of a second blowing fan installed therein Ventilation. The method of claim 1, And the outdoor air flow guide is formed in the outdoor unit to guide the outdoor air introduced into the outdoor air suction hole to the first flow path of the heat exchanger. The method of claim 2, And the indoor air flow path guide is formed in the indoor unit to guide the indoor air introduced into the indoor air suction hole to the second flow path of the heat exchanger. The method of claim 1, The first blowing fan is an exhaust fan, characterized in that the exhaust fan is installed inside the indoor air discharge hole to discharge the indoor air. The method of claim 1, And the second blowing fan is an air supply fan installed inside the outdoor air exhaust hole to suck outdoor air. The method of claim 1, The outdoor air suction hole is formed to be biased on one side of the one side of the outdoor unit, the outdoor air discharge hole is characterized in that the bias is formed in the center of one side of the indoor unit. The method of claim 6, The indoor air suction hole is formed on the other side of one side of the indoor unit is biased, the indoor air discharge hole is characterized in that the center of the one side of the outdoor unit is formed inclined. The method according to any one of claims 1 to 7, A guide rail is formed on one side and a bottom of the outdoor unit facing the outdoor air suction hole so that the outdoor unit is slidably detached from the heat exchange unit. A guide groove is engaged with the guide rail on one side and the bottom side of the heat exchanger. Ventilation device characterized in that formed. The method of claim 8, Ventilator, characterized in that any one of the outdoor unit or the heat exchange unit is installed to be located outside the other case. The method according to any one of claims 1 to 7, Guide grooves are formed on one side and a bottom of the indoor unit facing the indoor air suction hole so that the indoor unit slides to the heat exchange unit, and guide grooves are engaged with the guide rail on the other side and the bottom of the heat exchanger. Ventilation device characterized in that formed. The method of claim 10, Ventilator, characterized in that any one of the indoor unit or the heat exchange unit is installed to be located outside the other case. The method of claim 3, wherein A sealing guide groove is formed on one side of each of the outdoor unit and the indoor unit, and a sealing guide rail is formed at both ends of the heat exchanger to engage the sealing guide groove. The method of claim 12, And the sealing guide grooves are formed at ends of the outdoor air passage guide and the indoor air passage guide, respectively. The method of claim 13, And a sealing guide groove formed in the outdoor air flow path guide and a sealing guide rail formed at one end of the heat exchanger in the same direction as the sliding assembly direction of the outdoor unit and the heat exchange unit. The method of claim 13, And a sealing guide groove formed in the indoor air flow path guide and a sealing guide rail formed at the other end of the heat exchanger in the same direction as the sliding assembly direction of the indoor unit and the heat exchange unit. The method of claim 13, Assembly of the sealing guide groove formed in the outdoor air flow path guide and the sealing guide rail formed at one end of the heat exchanger is a sealing guide groove formed in the indoor air flow path guide and the sealing guide rail formed at the other end of the heat exchanger. Ventilator characterized in that the same direction formed.

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