KR20050086012A - 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 inhaling outdoor air into a room. A heat exchanger is installed in the case to perform a heat exchange between the indoor air and the outdoor air. In addition, since the flow path for indoor air is discharged to the outside and the flow path for outdoor air is formed therein, and the spiral fan is installed on each flow path, the indoor air is discharged according to the rotation direction of the spiral fan. The outdoor air may be introduced through the flow path, or the indoor air may be introduced through the flow path where the outdoor air is introduced, so that a large amount of indoor air can be discharged or a large amount of outdoor air can be sucked. As a result of the suction, foreign substances such as dust accumulated in the heat exchanger may be self-emitted.

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. One side and the other side of the is installed to be located in the center.

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 ventilator as described above, when the air supply fan is operated, the outdoor air is sucked along the flow path formed between the outdoor air suction hole and the outdoor air discharge hole, and when the exhaust fan is operated, the indoor air suction hole and the indoor air are operated. Since the indoor air is discharged along the flow path formed between the discharge holes, the outdoor air intake amount and the indoor air discharge amount are controlled only by the rotation speed of the air supply fan or the exhaust fan, thereby limiting the outdoor air intake amount and the indoor air emission.

In addition, the ventilator as described above has a filter is built in to filter foreign matter such as dust contained in the outdoor air before the outdoor air flows into the heat exchanger, since the ventilator is installed to be embedded in the ceiling or the inner wall of the building. There is a problem that can not clean the filter.

In addition, as the foreign matters, such as dust, are stacked on the filter as described above, the amount of blowing air sucked out of the outdoor air decreases, thereby reducing the blowing efficiency and further reducing the heat exchange efficiency.

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 a perspective view showing a first embodiment of the ventilation device according to the present invention;

5 is a plan view showing a first embodiment of a ventilation device according to the present invention;

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

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

8 is an exploded perspective view showing a blowing means included in the ventilation apparatus of the present invention,

9 is a perspective view showing a second embodiment of the ventilation device according to the present invention;

10 is a plan view showing a second embodiment of the ventilation device according to the present invention;

11 is a cross-sectional view taken along the line C-C of FIG.

12 is a cross-sectional view taken along the line D-D of FIG. 10.

Accordingly, an object of the present invention is to provide a ventilation device that can not only properly adjust the intake amount of the outdoor air or the discharge of the indoor air according to the indoor environment, but also maximize the intake amount of the outdoor air or the discharge of the indoor air.

In addition, an object of the present invention is to provide a ventilation device that can self-discharge foreign substances such as dust contained in outdoor air by itself to improve the user's convenience as well as to improve the blowing efficiency and heat exchange efficiency.

In one embodiment of the present invention for achieving the above object is a case formed with the indoor air suction hole and the outdoor air discharge hole is connected to the indoor side and the indoor air discharge hole and the outdoor air suction hole is connected to the outdoor side, and the case First and second flow paths are installed inside the first and second flow paths to separate the indoor air and the outdoor air is formed to exchange heat between the outdoor air and the indoor air and a heat exchanger between the indoor air suction hole and the indoor air discharge hole on the flow path formed A first blowing means for discharging indoor air or sucking outdoor air according to the rotation direction, and installed on a flow path formed between the outdoor air suction hole and the outdoor air discharge hole to suck the outdoor air or discharge the indoor air; It provides a ventilation device comprising a second blowing means.

In the present invention, the first and second blowing means is characterized in that it comprises a spiral fan capable of forcibly flowing air in the axial or opposite direction as it is rotated in the forward or reverse direction.

In this case, the first blowing means is installed inside the indoor air discharge hole, and the second blowing means is installed inside the outdoor air suction hole.

In the present invention, the spiral fan is formed of a cylindrical hub, and a spiral blade formed to have a constant width along the axial direction while being formed spirally twisted along the axial direction from one end to the other end of the hub on the outer peripheral surface of the hub It features.

In the present invention, the first and the second blowing means is coupled to the rotating shaft protruding to the rear end side of the spiral fan to rotate in the forward or reverse direction, and at least one fan support for supporting the spiral fan and the motor in the case A member is further included.

Here, the fan support member is composed of a first support member for rotatably supporting the tip of the rotating shaft protruding from the front end side of the spiral fan, and a second support member installed to support the motor on the rear end side of the spiral fan; The first support member may include a bearing portion to which the front end of the rotation shaft is rotatably coupled, a plurality of supports formed to extend outwardly from the bearing portion, and fixed to an outer end of the support to form an inner wall surface of the case. The second support member includes a motor mounting portion to which the rear end of the motor is fixed, a plurality of supports formed to extend outwardly from the motor mounting portion, and fixed to an outer end of the support. Characterized in that the fixing portion is fixed to the inner wall surface of the cabinet.

In the present invention, the first and second blowing means is installed to surround the blade outer side of the spiral fan is characterized in that it further comprises a fan housing for guiding the flow of air.

In this case, the fan housing is formed in the expansion portion is larger in diameter from the middle portion to the front end and the rear end, the fan housing is formed in the middle portion between the expansion portion in a straight line, the fan housing is centered on the spiral fan And symmetrically divided into first and second fan housings.

In the present invention, the motor is installed so that the tip is introduced into the hub of the spiral fan to reduce the flow resistance of the air and at the same time the installation space.

In the present invention, the case is characterized in that the check opening is formed so that the heat exchanger is detachably installed therein.

Here, the heat exchanger is installed inside the case so as to be horizontal with respect to one surface of the case where the indoor air suction hole and the outdoor air discharge hole are formed, and the check hole is perpendicular to one surface of the case where the indoor air suction hole and the outdoor air discharge hole are formed. Characterized in that formed on one side.

In addition, the indoor air flow guide is installed inside one side of the case in which the indoor air suction hole is formed around the heat exchanger to guide the flow of indoor air or outdoor air along the first flow path of the heat exchanger, and the heat exchanger as the center. Is installed inside the other side of the case where the outdoor air suction hole is formed and further comprises an outdoor air flow path guide for guiding the flow of indoor air or outdoor air along the second flow path of the heat exchanger, the length of both ends of the heat exchanger The guide protrusion is formed to be elongated in the direction, and the guide groove of the heat exchanger is formed at the end of the indoor air flow path guide and the outdoor air flow guide so as to slide in the lengthwise direction.

At this time, the filter is installed between the end of the outdoor air flow path guide and the second flow path of the heat exchanger to filter dust included in the outdoor air.

In the present invention, a first bypass damper that opens and closes the flow path between the indoor air suction hole and the indoor air discharge hole is installed between the heat exchanger and the case so that the first bypass damper is open and closed. When the fan is rotated to suck the indoor air is characterized in that the opening and closing control.

In addition, in the present invention, between the heat exchanger and the case, a second bypass damper that opens a flow path between the outdoor air suction hole and the outdoor air discharge hole is installed to be opened and closed, and the second bypass damper is the second air blower. When the helical fan of the means is rotated to suck the indoor air is characterized in that the opening and closing control.

On the other hand, the heat exchanger is installed so as to be perpendicular to the one surface of the case where the indoor air suction hole and the outdoor air discharge hole is formed, characterized in that the inspection port is formed on the bottom surface of the case.

In addition, the indoor air flow guide is installed inside one side of the case in which the indoor air suction hole is formed around the heat exchanger to guide the flow of indoor air or outdoor air along the first flow path of the heat exchanger, and the heat exchanger as the center. An outdoor air flow path guide is installed in the other side of the case in which the outdoor air discharge hole is formed and guides the flow of indoor air or outdoor air along the second flow path of the heat exchanger.

Here, the guide protrusions are formed at the line and the rear end of the heat exchanger in a height direction, and the guide protrusions are formed on one surface of the case between the indoor air suction hole and the outdoor air discharge hole and the partition wall installed between the first and second air blowing means. Guide grooves are formed to extend in the height direction so that the sliding fittings are formed, and sealing guide protrusions are formed to extend in the longitudinal direction to contact the indoor air flow path guides and the indoor air flow path guides at both ends of the heat exchanger, and the indoor air flow path guides and The outdoor air flow path guide end is characterized in that the sealing elastic member protruding long in the longitudinal direction to be in close contact with the sealing guide projection is installed to be fixed.

At this time, the filter is installed between the end of the outdoor air flow path guide and the second flow path of the heat exchanger to filter dust included in the outdoor air.

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.

4 and 5 are a perspective view and a plan view showing a first embodiment of the ventilation device according to the present invention, Figures 6 and 7 are cross-sectional views taken along line AA and BB of Figure 5, Figure 8 is a ventilation device of the present invention An exploded perspective view showing a blowing means included in the.

Looking at the first embodiment of the ventilator according to the present invention with reference to Figures 4 to 7, the indoor air suction hole 52 and the outdoor air discharge hole 54 connected to each other by the indoor side and the duct, etc. In addition, the indoor air discharge hole 56 and the outdoor air suction hole 58, which are connected to each other by the outdoor side and the duct, respectively, face the one surface on which the indoor air suction hole 52 and the outdoor air discharge hole 54 are formed. Is formed on the surface, the flow path for the indoor air and the flow path for the outdoor air flows separately installed in the case 50 and the center of the case 50, the outdoor air and indoor air passing through First blower means 70 which is installed inside the heat exchanger 60 and the indoor air discharge hole 56 to perform a heat exchange action to discharge indoor air or suck outdoor air according to the rotation direction of the spiral fan 72. ), And the outdoor ball Installed inside the suction hole 58 is configured to include the second blowing means 80, which discharge to the outside air or suck the room air depending on the direction of rotation of the helical fan 82.

Here, the case 50 is formed in a rectangular shape, the indoor air suction hole 52 and the outdoor air discharge hole 54 is formed side by side on one surface, the indoor air discharge hole 56 and the opposite surface The outdoor air suction holes 58 are formed side by side, and the heat exchanger 60 is installed to cross the inside of the case 50. The indoor air suction holes 52 and the outdoor air discharge holes 54 are formed. It is installed to be horizontal with respect to one surface of the case 50.

Of course, the indoor air suction hole 52 and the outdoor air suction hole 58 are formed on one surface of the case 50, and the outdoor air discharge hole 54 and the indoor air discharge hole 56 are disposed on opposite surfaces thereof. This may be formed.

In this case, the heat exchanger 60 is installed such that the first and second heat exchange units 62 and 64 are stacked to form first and second flow paths in which indoor air and outdoor air flow separately. (62, 64) is configured such that a plurality of guide ribs (60b) is installed on one surface of the rectangular heat exchange film (60a) of the rectangular or hexagonal shape, the flow of indoor air or outdoor air according to the installation direction of the guide rib (60b) The first and second euros for guiding this are determined.

Of course, the case 50 has a check hole 50h formed on one side, that is, one side surface perpendicular to the one surface of the case where the indoor air suction hole and the outdoor air discharge hole are formed so as to remove the heat exchanger 60. In addition, the inspection cover 50h is installed to open and close the inspection opening 50h, and the upper and lower ends of the heat exchanger 60 inside the inspection opening 50h so that the upper and lower ends of the case 50 can be fitted. A guide groove 55 is formed on the lower surface in the width direction so that the heat exchanger 60 can be slidably detached.

In addition, the case 50 is installed on one side of the indoor air suction hole 52 and the outdoor air discharge hole 54 based on the heat exchanger 60 to be introduced into the indoor air suction hole 52. The indoor air flow path guide 92 to allow the indoor air to be guided to the lower side of one side of the heat exchanger 60, and the indoor air discharge hole 56 and the outdoor air suction hole based on the heat exchanger 60 ( It is configured to further include an outdoor air flow path guide 94 is installed on the other side is formed 58 to guide the outdoor air introduced into the outdoor air suction hole 58 to the lower side of the other side of the heat exchanger (60).

Here, the indoor air flow path guide 92 is formed to protrude upward so that indoor air sucked from the indoor air suction hole 52 is guided to one side lower surface of the heat exchanger 60, and the heat exchanger 60 is provided. The outdoor air discharged to one side of the upper side is formed to be raised downward to guide the outdoor air discharge hole 54, the end of the guide projection (66a) formed long in the longitudinal direction on one side of the heat exchanger (60) Guide grooves 68a are formed long in the longitudinal direction so that they can be fitted and slidably detached.

In addition, the outdoor air flow path guide 94 also protrudes upward so that outdoor air sucked from the outdoor air suction hole 58, like the indoor air flow guide 92, is guided to the lower side of the other side of the heat exchanger 60. It is formed so as to be raised downward to guide the indoor air discharged to the upper side of the other side of the heat exchanger 60 to the indoor air discharge hole 56, the length at the other side of the heat exchanger (60) at the end The guide groove 66b is formed to be elongated in the longitudinal direction so that the guide protrusion 66b elongated in the direction may be fitted to slide and detach.

In addition, a filter 95 is installed at the end side of the outdoor air flow path guide 94 to filter foreign matter such as dust from the outdoor air guided by the outdoor air flow path guide 94. It is installed to be located over the entire lower side of the other side of the heat exchanger (60).

However, the first blowing means 70 is installed inside the indoor air discharge hole 56 to discharge indoor air when the spiral fan 72 included therein rotates in the forward direction, while the spiral fan 72 is disposed. The outdoor air is sucked when rotated in the reverse direction, and the second blowing means 80 is installed inside the outdoor air suction hole 58 so that the spiral air 82 included therein rotates the outdoor air in the forward direction. While inhaling, the spiral fan 82 sucks indoor air when rotated in the reverse direction.

Of course, the first blowing means 70 may be installed inside the indoor air suction hole 52, and the second blowing means 80 may be installed inside the outdoor air discharge hole 54, In this case, since the indoor air suction hole 52 and the outdoor air discharge hole 54 are installed to be connected to the indoor side duct, vibration and noise generated from the first and second air blowing means 70 and 80 are transmitted. Since the first and second blowing means (70, 80) is easy to be installed inside the indoor air discharge hole 56 and the outdoor air suction hole (58).

Therefore, when a large amount of suction of outdoor air is required according to the use environment, the spiral fan 72 included in the first blowing means 70 is rotated in the reverse direction, and the spiral fan included in the second blowing means 80 is provided. 82 is rotated in the forward direction to allow the outdoor air to be sucked through both the indoor air discharge hole 56 and the outdoor air suction hole 58, and the first air blowing means when a large amount of indoor air is required according to the use environment. The spiral fan 72 included in the 70 is rotated in the forward direction, and the spiral fan 82 included in the second blowing means 80 is rotated in the reverse direction to discharge the indoor air suction hole 52 and the outdoor air. Through the air 54, all the indoor air can be discharged.

Of course, the spiral fan 72 included in the first blowing means 70 and the spiral fan 82 included in the second blowing means 80 are rotated in the forward direction to discharge the indoor air, respectively. The spiral fan 72 included in the first blowing means 70 and the spiral fan 82 included in the second blowing means 80 are rotated in the reverse direction, respectively, and suck the outdoor air. It can also release indoor air.

At this time, when the helical fan 72 included in the first blowing means 70 rotates in the forward direction to discharge the indoor air, the indoor air sucked into the indoor air suction hole 52 causes the heat exchanger 60 to be discharged. A first bypass damper 96 is installed to open and close the flow path between one end of the heat exchanger 60 and the case 50 so as to be discharged to the indoor air discharge hole 56 without passing therethrough. The first bypass damper 96 is opened and closed when the helical fan 72 included in the first blowing means 70 is operated to suck indoor air.

In addition, when the helical fan 82 included in the second blowing means 80 rotates in the reverse direction to discharge the indoor air, the indoor air sucked into the outdoor air discharge hole 54 causes the heat exchanger 60 to be discharged. A second bypass damper 98 is installed to open and close the flow path between the other end of the heat exchanger 60 and the case 50 so as to be discharged to the outdoor air suction hole 58 without passing therethrough. The second bypass damper 98 is opened and closed when the spiral fan 82 included in the second blowing means 80 is operated to suck indoor air.

On the other hand, the first and second blowing means (70, 80) is a spiral fan (72, 82) for forcibly inhaling air and discharge in the axial direction, and a motor for driving the spiral fan (72, 82) in the forward or reverse direction (74,84), fan housings (76,86) are installed so as to be spaced around the spiral fan (72,82) to guide the flow of air, the spiral fan (72,82) and the motor (74,84) ) Is configured to include support members (77, 78; 87, 88) to rotatably fix the indoor air discharge hole 56 or the outdoor air suction hole (58) side of the case (50).

In detail, the configuration of the first blowing means 70 will be described with reference to FIG. 8. The spiral fans 72 and 82 may also be called “Yin-Yang fans”, and the motors 74 and 84 may be used. A vertical rotary shaft 721 which rotates in combination with the shaft, an elongated cylindrical hub 722 fixedly coupled to the rotary shaft 721, and an axis from the front end to the rear end of the hub 722 on the outer circumferential surface of the hub 722. It consists of a pair of blades 723 formed spirally twisted along the direction, each of which blades 723 has a constant width from the front end to the rear end of the hub 722.

Here, the blades 723 are formed at a position in which the two are opposed to each other, that is, 180 degrees apart, alternatively, two or more blades may be formed at regular intervals.

In addition, the blades 723 are not limited to the angle twisted from one end to the other end, the spiral fan 723 is formed in the axial direction of the hub 722 180 degrees or less so that there is no overlapping area. Workability is good.

Since the helical fan 72 configured as described above is helically twisted along the vertical axial direction of the blade 723, when the helical fan 72 is rotated in the forward direction, air is applied to the surface of the blade 723. Accordingly, the helical fan 72 is passed in the axial direction, and when the helical fan 72 is rotated in the reverse direction, air passes through the helical fan 72 in the opposite direction. If the external conditions are the same, they are formed to be almost identical.

Next, the motor 74 is connected to the rotary shaft 721 located below the hub 722 to rotate the helical fan 72 in the forward or reverse direction so that the motor 74 is drawn inside the hub 722. Installed, the overall fan size can be reduced, as well as the flow path resistance.

Next, the fan housing 76 is formed in a cylindrical shape with an upper end and a lower end open to be installed just outside the helical fan 72 so as to surround the helical fan 72. When the air is blown by the rotation of the helical fan 72 increases the static pressure, and serves as a passage for allowing a constant air flow.

Here, the fan housing 76 may be integrally formed, but as shown in the drawing, the first fan housing 761 and the second fan housing 762 symmetrically installed about the rotation shaft 721. It is formed to be divided into two parts.

At this time, the first and second fan housings 761 and 762 have middle portions 761a and 762a formed in a substantially straight shape, and extensions and expansion parts 761b and 762b gradually extending outwardly to the front and rear ends through which air is introduced and discharged. Is formed to have a curved shape with a predetermined curvature. The first and second fan housings 761 and 762 have a curvature radius at which the air flows. It is preferable to be larger than the exit radius of curvature discharged.

The first and second fan housings 761 and 762 configured as described above are installed so that each corner portion of the line and the rear end is connected to the inner wall surface of the case 50, and the first and second fan housings 761 and 762 are separately provided. The fixing member 75 may be installed to be fixed to the 50.

Next, the support member includes a first support member 77 for rotatably supporting the rotation shaft 721 protruding from the front end side of the helical fan 72, and a motor 74 at the rear end side of the helical fan 72. It consists of a second support member 78 is installed to support.

Here, the first support member 77 has four bearing portions 771 in which the front end of the rotation shaft 721 is rotatably supported, and four bar-shaped portions extending outwardly from both sides of the bearing portion 771. The first fixing bracket is formed to connect the outer end of the support (772a ~ 772d) and the two support (772a, 772b) of one side of the support (772a ~ 772d) fixed to the inner wall surface of the case (50) 773a and a second fixing bracket 773b which is formed to connect the outer ends of the remaining two supports 772c and 772d on opposite sides of the first fixing bracket 773a and is fixed to an inner wall surface of the case 50. It is made of a), the bearing portion 771 and the two support (772a, 772b; 772c, 772d) and fixing brackets (773a; 773b) connecting these supports are formed to form a triangle when viewed from the front or rear end.

In this case, the bearing portion 771 may be made of a self-lubricating material having a good lubrication or a bearing (not shown) therein to smoothly rotate the spiral fan 72.

In particular, the supporters 772a to 772d of the first support member 77 are preferably formed to be inclined upwardly outward from the bearing portion 771, which is noise when air is discharged through the helical fan 72. To reduce the

That is, when the air passing through the helical fan 72 passes through the supports 772a to 772d of the upper support member 77, a vortex is generated, and this vortex generates a constant frequency. If the supports 772a to 772d are formed at the same height, the same frequency may be generated by vortices at all points of the supports 772a to 772d to amplify the noise.

However, when the supports 772a to 772d are installed to be inclined as described above, noises can be reduced because the frequencies due to the generation of vortices in the respective portions of the supports 772a to 772d vary.

In the first support member 77 as described above, the first and second fixing brackets 773a and 773b may be directly fixed to the inner wall surface of the case 50 by using a fastening means such as a screw or a bolt. It may be fixed to the inner wall surface of the case 50 by the member 75.

Next, the second support member 78 is similar to the first support member 77 and the motor mounting portion 781 having a concave motor fixing groove 782 formed in the center thereof so that the rear end of the motor 12 is inserted and coupled. Four supporters 784a to 784d extending to both sides of the motor mounting unit 781 and two first and second fixing brackets 785a and 785b connecting outer ends of the respective supporters 784a to 784d. Is done.

Of course, like the first support member 77, the second support member 78 also has the motor mounting portion 781, two support members 784a, 784b; 784c, 784d and a fixing bracket 785a; 785b. Or it is formed to form a triangle when viewed from the rear end.

At this time, in order to reduce the vibration generated when the motor 74 is driven, a vibration absorbing packing material made of flexible rubber or synthetic resin material into which the rear end of the motor 74 is fitted on the inner circumference of the motor fixing groove 782 ( 783) is preferably installed.

In addition, the second blowing means 80 is also configured in the same manner as the first blowing means 70 configured as described above.

Since the first and second blowing means are configured as described above, when the spiral fan 72 included in the first blowing means 70 is rotated in the forward direction, the indoor air sucked through the indoor air suction hole 52 is After passing through the heat exchanger 60 and performing heat exchange with the outdoor air, the air is discharged through the indoor air discharge hole 56, and the helical fan 82 included in the second blowing means 80 is forward. When rotated, the outdoor air sucked through the outdoor air suction hole 58 passes through the filter 95, and foreign substances such as dust are filtered out, and then heat exchange with the indoor air while passing through the heat exchanger 60. Next, it is discharged through the outdoor air discharge hole (54).

At this time, when the first bypass damper 96 is operated to open, the indoor air sucked into the indoor air suction hole 52 does not pass through the heat exchanger 60, but directly into the indoor air discharge hole 56. May be emitted.

On the other hand, when the helical fan 72 of the first blowing means 70 rotates in the reverse direction and the helical fan 82 of the second blowing means 80 is rotated in the forward direction, outdoor air discharges the indoor air. At the same time through the air 56 and the outdoor air suction hole 58 is to be discharged through the indoor air suction hole 52 and the outdoor air discharge hole 54 can increase the amount of suction of outdoor air.

At this time, the air sucked through the indoor air discharge hole 56 and the outdoor air suction hole 58 is filtered by the filter 95 to allow foreign substances such as dust to be filtered and then introduced into the indoor side.

On the other hand, when the spiral fan 72 of the first blowing means 70 rotates in the forward direction and the spiral fan 82 of the second blowing means 80 rotates in the reverse direction, indoor air is sucked into the indoor air. At the same time through the air 52 and the outdoor air discharge hole 54 to be discharged through the indoor air discharge hole 56 and the outdoor air suction hole 58 can increase the discharge of indoor air.

At this time, when the first bypass damper 96 and the second bypass damper 98 are operated to open at the same time, the indoor air sucked through the indoor air suction hole 52 and the outdoor air discharge hole 54 It may be discharged through the indoor air discharge hole 56 and the outdoor air suction hole 58 directly without passing through the heat exchanger 60.

In addition, when the ventilation device is operated as described above, foreign matters such as dust filtered by the filter 95 are automatically discharged through the indoor air discharge hole 56 and the outdoor air suction hole 58 together with the indoor air. It is not necessary to clean the filter 95.

9 and 10 are a perspective view and a plan view showing a second embodiment of the ventilation apparatus according to the present invention, Figures 11 and 12 are cross-sectional views taken along the line C-C and D-D of FIG.

In addition, the second embodiment of the ventilator according to the present invention is the indoor air suction hole 152 and the outdoor air connected to one side of the rectangular case 150 by the indoor side and the duct as shown in Figs. The discharge hole 154 is formed and the indoor air discharge hole 156 and the outdoor air suction hole 158 connected to the outdoor side and the duct are formed on the surface opposite thereto, and the outdoor air is formed inside the case 150. And a case in which a flow path through which the indoor air flows separately is formed so that a heat exchange action is performed between the outdoor air and the indoor air, the case in which the indoor air suction hole 152 and the outdoor air discharge hole 154 are formed ( It is installed so as to be perpendicular to the one surface of the 150, the bottom surface of the case 150 is formed with a check hole (150h) to remove the heat exchanger 160 and the check cover (150h) 151 is removable Neunghage is installed.

In addition, the indoor air discharge hole 156 is provided with a first blowing means 170 to discharge the indoor air or to suck the outdoor air, and the outdoor air inside the outdoor air suction hole 158. A second blowing means 180 is provided to suck or discharge indoor air, and a separate partition wall 161 is installed between the first and second blowing means 170 and 180 so that outdoor air or indoor air is partitioned from each other. do.

In addition, one side of the case 150 in which the indoor air suction hole 152 is formed on the basis of the heat exchanger 160, the indoor unit guides the flow of indoor air or outdoor air to the first flow path side of the heat exchanger 160. Outdoor air for guiding the flow of indoor air or outdoor air to the second flow path of the heat exchanger 160 on the other side of the case 150 in which the air flow guide 192 is installed and the outdoor air discharge hole 154 is formed. A flow path guide 194 is installed, and a filter (not shown) is further included between the end of the outdoor air flow path guide 194 and the second flow path of the heat exchanger 160 to filter dust included in the outdoor air. do.

In this case, the heat exchanger 160 is the first and second heat exchange unit (162, 164) are stacked on each other so that the indoor air or outdoor air can be flowed separately as in the first embodiment, the first, second heat exchange unit (162, 164) ) Is configured such that a plurality of guide ribs 160b are installed in the thin rectangular or land-shaped heat exchange membrane 160a, wherein the first and second heat exchange units 162 and 164 are installed according to the installation direction of the guide ribs 160b. Are distinguished.

In particular, sealing guide protrusions 166a and 166b are formed at both ends of the heat exchanger 160 in the longitudinal direction, and the sealing guides are formed at the ends of the indoor air flow guide 192 and the outdoor air flow guide 194. Sealing elastic members 167a and 167b are installed to allow the projections 166a and 166b to be in close contact with each other to allow the indoor air or the outdoor air to be partitioned.

In addition, the case 150 between the indoor air suction hole 152 and the outdoor air discharge hole 154 is formed at the line and the rear end of the heat exchanger 160 in a lengthwise direction of the guide protrusions 168a and 168b. In the partition wall 161 provided between one surface and the first and second air blowing means 161, guide grooves 169a and 169b are formed to extend in the height direction so that the guide protrusions 168a and 168b are slidingly fitted.

At this time, when the heat exchanger 160 is installed from the lower side to the upper direction through the check hole 150h formed on the bottom surface of the case 150, the guide protrusions (168a, 168b) of the heat exchanger is the guide groove ( 169a and 169b are inserted into the slide, and when the heat exchanger 160 is completely inserted into the case 150, the sealing guide protrusions 166a and 166b of the heat exchanger are the sealing elastic members 167a and 167b. The heat exchanger 160 is fixed by a separate fixing means, or the check cover 151 is fixed to the check hole 150h so that the heat exchanger 160 is fixed. It can also be supported.

Meanwhile, the first and second blowing means 170 and 180 are installed to be fixed inside the fan housings 175 and 185. A pair of blades are spirally installed on the outer circumference of the hub to inhale and discharge air in the axial direction. 172, 182, motors 174, 184 for driving the helical fans 172, 182 in the forward or reverse direction, the front end of the helical fans 172, 182, and the rear ends of the motors 174, 184 for the fan housing 175, 185 or the case ( 150, and includes first and second support members 177, 178, 187, and 188 fixed therein, and have the same structure as described in the first embodiment.

Therefore, the second embodiment is also operated in the same manner as the first embodiment, the spiral fan 172 included in the first blowing means 170 is rotated in the forward direction and at the same time the second blowing means 180 When the included spiral fan 182 is rotated in the forward direction, the indoor air sucked through the indoor air suction hole 152 and the outdoor air sucked through the outdoor air suction hole 158 are connected to the heat exchanger 160. After passing through the heat exchange operation, the indoor air discharge holes 156 and the outdoor air discharge holes 154 are respectively discharged.

At this time, while the outdoor air sucked through the outdoor air suction hole 158 passes through the filter, foreign substances such as dust are filtered out and then flows into the heat exchanger 160.

Meanwhile, when the spiral fan 172 of the first blowing means 170 rotates in the reverse direction and the spiral fan 182 of the second blowing means 180 rotates in the forward direction, outdoor air is discharged from the indoor air. At the same time through the air 156 and the outdoor air suction hole 158 to be discharged through the indoor air suction hole 152 and the outdoor air discharge hole 154 can increase the suction amount of outdoor air.

Of course, the air sucked through the indoor air discharge hole 156 and the outdoor air suction hole 158 is introduced into the indoor side after the foreign matter such as dust is filtered out by the filter.

On the other hand, when the spiral fan 172 of the first blowing means 170 is rotated in the forward direction and the spiral fan 182 of the second blowing means 180 is rotated in the reverse direction, indoor air is sucked into the indoor air At the same time through the air 152 and the outdoor air discharge hole 154 to be discharged through the indoor air discharge hole 156 and the outdoor air suction hole 158 can increase the discharge of the indoor air.

At this time, foreign matters such as dust filtered by the filter are automatically discharged through the indoor air discharge hole 156 and the outdoor air suction hole 158 together with the indoor air, so that the user does not need to clean the filter separately.

In the above, the present invention has been described in detail by taking an example of a heat exchanger for a 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 (30)

A case having an indoor air suction hole and an outdoor air discharge hole connected to the indoor side and an indoor air discharge hole and outdoor air suction hole connected to the outdoor side; A heat exchanger installed inside the case and having first and second flow paths through which indoor air and outdoor air flow separately to perform heat exchange between the outdoor air and the indoor air; First blowing means installed on a flow path formed between the indoor air suction hole and the indoor air discharge hole to discharge indoor air or suck outdoor air according to a rotation direction; And a second blowing means installed on the flow path formed between the outdoor air suction hole and the outdoor air discharge hole to suck the outdoor air or discharge the indoor air. The method of claim 1, The first and second blowing means is a ventilation device characterized in that it comprises a spiral fan capable of forcing the flow of air in the axial direction or the opposite direction as it is rotated in the forward or reverse direction. The method of claim 2, The first blowing means is a ventilation device, characterized in that installed inside the indoor air discharge hole. The method of claim 2, And the second blowing means is installed inside the outdoor air suction hole. The method of claim 2, The spiral fan is formed of a cylindrical hub and a spiral blade formed on the outer circumferential surface of the hub by spirally twisting in an axial direction from one end to the other end of the hub and having a predetermined width along the axial direction. Device. The method of claim 5, The first and second blowing means further includes a motor coupled to a rotating shaft protruding from the rear end of the spiral fan to rotate in a forward or reverse direction, and at least one fan support member for supporting the spiral fan and the motor in the case. Ventilation device characterized in that. The method of claim 6, The fan support member may include a first support member rotatably supporting a tip of a rotating shaft protruding from the front end side of the helical fan, and a second support member installed to support a motor at a rear end side of the helical fan. Ventilation. The method of claim 7, wherein The first support member may include a bearing portion to which the distal end of the rotation shaft is rotatably coupled, a plurality of supports formed to extend outwardly from the bearing portion, and fixed to an outer end portion of the support to the inner wall surface of the case. Ventilation device characterized in that consisting of a fixed portion. The method of claim 7, wherein The second support member may include a motor mounting portion to which a rear end of the motor is fixed, a plurality of supports formed to extend outwardly from the motor mounting portion, and fixed to an inner end of the support and fixed to an inner wall surface of the cabinet. Ventilation device characterized in that made of government. The method of claim 6, The first and second blowing means is installed to surround the blade outer side of the spiral fan ventilation device further comprises a fan housing for guiding the flow of air. The method of claim 10, The fan housing is a ventilator, characterized in that the expansion portion is formed larger in diameter from the middle portion to the front end and the rear end. The method of claim 11, The fan housing is a ventilation device, characterized in that the middle portion between the expansion portion is formed in a straight line. The method of claim 10 or 11, And the fan housing is formed to be symmetrically divided into first and second fan housings about the spiral fan. The method of claim 6, The motor is ventilator, characterized in that the front end is installed so that the inside of the hub of the spiral fan. The method of claim 2, The case is a ventilation device, characterized in that the check opening is formed so that the heat exchanger is detachably installed therein. The method of claim 15, The heat exchanger is installed inside the case so as to be horizontal with respect to one surface of the case where the indoor air suction hole and the outdoor air discharge hole are formed, and the inspection port is one perpendicular to the one surface of the case where the indoor air suction hole and the outdoor air discharge hole are formed. Ventilation device characterized in that formed on the side. The method of claim 16, An indoor air flow path guide is installed inside one side of the case in which the indoor air suction hole is formed around the heat exchanger to guide the flow of indoor air or outdoor air along the first flow path of the heat exchanger. Ventilation. The method of claim 17, And an outdoor air flow path guide installed inside the other side of the case in which the outdoor air suction hole is formed around the heat exchanger to guide the flow of indoor air or outdoor air along the second flow path of the heat exchanger. Ventilation. The method of claim 18, Guide protrusions are formed at both ends of the heat exchanger in the longitudinal direction, and guide grooves are formed at the ends of the indoor air flow path guide and the outdoor air flow path guide in the longitudinal direction so as to slide the guide protrusions of the heat exchanger. Ventilation. The method of claim 18, And a filter installed between the end of the outdoor air flow guide and the second flow path of the heat exchanger to filter dust included in the outdoor air. The method of claim 16, And a first bypass damper that opens and closes the flow path between the indoor air suction hole and the indoor air discharge hole between the heat exchanger and the case. The method of claim 21, And the first bypass damper is opened and closed when the spiral fan of the first blowing means is rotated to suck indoor air. The method of claim 16, And a second bypass damper that opens and closes a flow path between the heat exchanger and the case and opens the flow path between the outdoor air suction hole and the outdoor air discharge hole. The method of claim 23, And the second bypass damper is opened and closed when the spiral fan of the second blowing means is rotated to suck indoor air. The method of claim 15, The heat exchanger is installed so as to be perpendicular to one surface of the case in which the indoor air suction hole and the outdoor air discharge hole is formed, wherein the check hole is formed on the bottom surface of the case. The method of claim 25, An indoor air flow path guide is installed inside one side of the case in which the indoor air suction hole is formed around the heat exchanger to guide the flow of indoor air or outdoor air along the first flow path of the heat exchanger. Ventilation. The method of claim 26, And an outdoor air flow path guide installed in the other side of the case in which the outdoor air discharge hole is formed around the heat exchanger to guide the flow of indoor air or outdoor air along the second flow path of the heat exchanger. Ventilation. The method of claim 27, Guide protrusions are formed on the front and rear ends of the heat exchanger in a height direction, and the guide protrusions slide on partition walls provided between one side of the case between the indoor air suction hole and the outdoor air discharge hole and the first and second blower means. Ventilation device characterized in that the guide groove is formed long in the height direction to be fitted. The method of claim 28, Sealing guide protrusions are formed at both ends of the heat exchanger to extend in the longitudinal direction to contact the indoor air flow path guide and the indoor air flow path guide, and the indoor air flow path guide and the outdoor air flow path guide ends are formed to closely contact the sealing guide protrusion. Ventilation device characterized in that the sealing elastic member protruding in the long direction is installed to be fixed. The method of claim 27, And a filter installed between the end of the outdoor air flow guide and the second flow path of the heat exchanger to filter dust included in the outdoor air.