KR101581239B1 - Damper unit for selecting flow path, and air conditioning system using the damper unit - Google Patents

Abstract

The present invention relates to a damper unit for selecting a flow path and an air conditioning system using the same. According to the present invention, the damper unit can connect a flow path selectively by controlling a single blade with a T-shaped cross section in a duct connection part where three flow paths meet and form a T-shaped cross section. Thus, the damper unit can simplify a configuration thereof without controlling an additional blade with each motor, and has a simple control method, and can save an installation space. Therefore, if the damper unit for selecting the flow path is applied to an air conditioning system, it is possible to perform selective ventilation for a plurality of rooms by a simple control method without a design change of the existing equipment.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper unit, a damper unit, and an air conditioning system using the damper unit.

The present invention relates to a flow-path-type damper unit and an air-conditioning system using the damper unit. More specifically, the present invention relates to a damper unit of a flow-selective damper unit capable of selectively connecting three flow paths by controlling only a single blade.

A damper is a mechanism that opens or closes a flow path so that gas, liquid, or powder material can pass through. In general, when controlling the flow in one direction, a plate-shaped blade is rotated so that the blade blocks the flow path, or the flow path is opened in parallel with the flow direction of the fluid.

However, in controlling the opening and closing of the flow path at the point where the flow path of three or more directions meet, a more complicated method is applied.

FIG. 1 shows an example of a branch duct 10 to which a damper is applied for opening and closing a conventional branch passage. That is, the blade 14 is controlled by the motor 15 so that the material falling from the flow path C 13 can be selectively introduced into the flow path A 11 or the flow path B 12. 1, it is possible to connect the flow path C 13 and the flow path A 11 or to connect the flow path C 13 and the flow path B 12, It is impossible to prevent all of the connection between the B 12 and the C 13.

2 shows a branch duct 20 to which another type of damper is applied. The operation of the branch duct 20 shown in Fig. 2 will be described. A first blade 24 is provided on the side of the flow path A 21 and a second blade 25 is provided on the side of the flow path B 22 When the first blades 24 are opened, the flow path A 21 and the flow path C 23 are connected. When the second blades 25 are opened, the flow path B 22 and the flow path C 23 are connected. Opening or closing both of the blades 24 and 25 allows both the connection and disconnection of the entire flow path. However, in the example shown in FIG. 2, a separate motor (not shown) is required to be interlocked with the first blade 24 and the second blade 25 so as to be individually controlled.

On the other hand, Korean Patent Registration No. 10-0785896 discloses a damper for opening and closing a flow path in multiple directions.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a flow path-selective damper unit capable of selectively connecting three flow paths by controlling only a single blade.

It is another object of the present invention to provide an air conditioning system that enables selective ventilation to a plurality of rooms by applying a flow-selective damper unit capable of selectively connecting three flow paths.

In order to achieve the above object, the flow path-selective damper unit according to the present invention comprises a T-shaped channel A, a channel B and a channel C (the channel A and the channel B are connected in a straight line, A duct connecting portion having a duct connecting portion vertically branched to the duct connecting portion; And a blade (a), a blade (b), and a blade (c), the blade (a) and the blade (c) being connected in a straight line and the blade (b) extending vertically to the blade (a) And when the blade a rotates and the blade a and the blade b run across both ends of the flow path C (or when the blade b and the blade c run across both ends of the flow path C), the flow path A, the flow path B, and the flow path C When the blade b and the blade c are attached to both ends of the flow path A, the flow path B and the flow path C are connected to each other. When the blade a and the blade b run across both ends of the flow path B, C, and when the blade a and the blade c are located at one point between the both ends of the flow path A or both ends of the flow path B, the flow path A, the flow path B, and the flow path C It is characterized in that all connections.

Here, the blade has a semi-circular plate (corresponding to the blade b) perpendicularly to the center of the original plate (corresponding to the blade a and the blade c), and the flow path A, the flow path B and the flow path C of the duct connection part A spherical blade rotating space is formed in which the blade is seated and can be rotated.

According to another aspect of the present invention, there is provided an air conditioning system using a damper unit, including: a ventilator for discharging indoor air to the outside through driving of a fan; A ventilation pipe connected to the ventilator at one side and a selective damper for selecting a plurality of flow paths at the other side; And at least one of the at least two rooms connected to the other side of the ventilation pipe to communicate with at least one of the at least two rooms to the ventilation duct side, It can be ventilated.

Here, the selectable damper may be the flow-path-selective damper unit of the above-mentioned item (1) or (2).

According to the flow path-selective damper unit of the present invention, the flow path can be selectively connected through control of a single blade having a T-shaped cross section in a duct connecting portion having three flow paths and having a T-shaped cross section. That is, two specific flow paths are connected, or all the flow paths are blocked, or all the flow paths are blocked depending on the state of the specific two blades that are spaced 90 degrees from the blade a, the blade b and the blade c, To be connected. Therefore, there is no need to control the separate blades with the respective motors, which simplifies the configuration, simplifies the control method, and saves installation space.

In the flow-path-type damper unit according to the present invention, a stepping motor may be used as a motor for operating the blades. In the driving unit for driving the stepping motor, when the external power source flows, the stepping motor is driven, In addition, when a power failure occurs, the stepping motor is operated in a state of shutting off all the flow paths by using the power charged in the super capacitor, thereby preventing the toxic gas from flowing backward through the open flow path in an emergency such as a fire I can do it.

In addition, when the flow path-selective damper unit according to the present invention is applied to an air conditioning system, it is possible to selectively change the structure of the existing ventilator or to selectively ventilate the room by simple control even if no additional equipment is installed.

1 and 2 are views for explaining an example of a damper applied to a conventional branch duct.
3 is an exploded perspective view for explaining a flow path-selective damper unit according to an embodiment of the present invention.
4 is a view for explaining a channel connection state according to a blade state of the flow path-selective damper unit shown in Fig. 3;
5 is a view for explaining an example in which the flow path-selective damper unit shown in Fig. 3 is applied to an air conditioning system; Fig.
6 is a view for explaining a motor and a drive circuit thereof for operating a blade in a flow-path-type damper unit according to an embodiment of the present invention.
7 and 8 are views for explaining an example in which the flow-path-selecting damper unit according to the embodiment of the present invention is applied to another type of air conditioning system.
9 is a view for explaining the ventilation state of the bathroom 1 in the air conditioning system shown in Fig.
10 is a view for explaining the ventilation state of the bathroom 2 in the air conditioning system shown in Fig. 7; Fig.
Fig. 11 is a view for explaining the ventilation state of the bathroom 1 and the bathroom 2 in the air conditioning system shown in Fig. 7; Fig.
12 is a view for explaining the ventilation state of the kitchen in the air conditioning system shown in Fig. 7; Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, some configurations which are not related to the gist of the present invention may be omitted or compressed, but the configurations omitted are not necessarily required for the present invention, and they may be combined by a person having ordinary skill in the art to which the present invention belongs. .

3 is an exploded perspective view for explaining a flow-path-selecting damper unit according to an embodiment of the present invention. 3, the flow path-selecting damper unit 100 according to the embodiment of the present invention includes a duct connecting part 110, a blade 120, a lid 116, and a driving part 130. As shown in FIG.

The duct connecting portion 110 is provided with a blade rotating space 114 in which the blade 120 is seated inside and includes a flow passage A 111 and a flow passage B 112 ), And the oil line C (113) faces the right side. That is, the flow path A111 and the flow path B121 are connected in a straight line, and the flow path C113 is a flow path vertically branched at a point where the flow path A111 and the flow path B121 intersect.

The shaft connecting hole 115 is formed in the side of the blade connecting space 110 of the duct connecting part 110 and the shaft 124 of the blade 120 is connected to the motor Not shown). When the blade 120 is seated in the blade rotating space 114 of the duct connecting part 110, the shaft 120 is covered by the lid 116 and both axes 124 of the blade 120 are engaged with the shaft connecting hole 115 and the lid 116 and is rotatable by 360 degrees.

Here, the blade 120 has a shape in which a half disk is coupled perpendicular to the center of the disk. Therefore, the blade 120 can be divided into three blades about a point where the disk and the half disk intersect. The three divided blades are referred to as blade a (121), blade b (122), and blade c (123) for convenience, respectively. Here, the shape of the blade 120 does not necessarily need to be a disk or a semi-circular disk, but may be formed in a different shape if it can be rotated 360 degrees in both directions in close contact with the inner wall surface of the blade rotating space 114 of the duct connecting part 110 have. However, if the vanes constituting the blades 120 are implemented as a combination of the disk and the semi-disk, and the blade rotation space 114 in which the blades 120 are installed is formed into a spherical shape, a more reliable rotation and sealing structure will be achieved.

These blades 120 can be rotated by a motor (not shown) provided in the driving unit 130 to produce different flow path states as shown in Figs. 4A to 4D. In other words, in a state in which the blade b 122 and the blade c 123 extend over and under the flow path C 113 as shown in FIG. 4A, all three flow paths 111, 112, and 113 are clogged. On the other hand, as shown in FIG. 4 (b), the blade a 121 and the blade c 123 forming the original disk extend from the left side of the flow path B 112 to the upper side of the flow path C 113, The flow path C 113 and the flow path B 112 are in a state in which they are on the left side of the flow path A 111 (in other words, the blade b 122 and the blade c 123 block the flow path A 111) So that the fluid can flow. The blade a121 and the blade c123 forming the disk become parallel to the connecting direction of the flow path A111 and the flow path B121 as shown in FIG. The flow path A 111, the flow path B 112, and the flow path C 113 are all connected to each other in a state in which the flow path is on the opposite wall surface of the flow path C 113. As shown in FIG. 4 (d), the blade a 121 and the blade c 123 forming the disk extend from the lower portion of the flow path C 113 to the left side of the flow path A 111, (In a state where the blade a 121 and the blade b 122 are blocking the flow path B 112) in a state in which the flow path is in the left side of the flow path B 112, So that the fluid can flow.

Of course, in FIG. 4 (a), all of the flow paths are blocked by making the blade b 122 and the blade c 123 spread over and under the flow path C 113, ) And the blade b (122) extend over and under the flow path (C) 113, all of the flow paths are shut off.

That is, the flow path-selective damper unit 100 according to the present embodiment has a structure in which a semicircular plate (corresponding to the blade b 122) is vertically coupled to the center of the original plate (corresponding to the blade a 121 and the blade c 123) And a surface opposite to the surface on which the semi-circular plate is fixed from the circular plate functions to reflect the fluid flowing in the flow path and to send the fluid to the other flow channel side. The surface of the circular plate opposite to the half- And closes it.

Meanwhile, the flow path in the duct connecting portion 110 and the blade 120 are both formed in a T shape. Thus, the blade 120 can rotate 90 degrees, 135 degrees, 180 degrees at the reference position (0 degree) through 90 degrees or 45 degrees (combination of 90 degrees and 45 degrees rotation) . For this purpose, a stepping motor capable of rotating at a predetermined angle according to a pulse signal may be used in the driving unit 130 for rotating the blade 120, To (d). Here, a circuit for driving the stepping motor J5 is shown in Fig. 6, and a description of the circuit will be made below again.

Also, in the above-described embodiment, a packing (not shown) may be applied around the blade 120 to secure the flow path sealing.

As described above in detail, according to the flow path-selective damper unit 100 of the present invention, in the duct connecting portion 110 in which the three flow paths meet and the cross section of which is T-shaped, The flow path can be selectively connected through the control of the controller 120. That is, two specific flow paths are connected according to the state of the specific two blades 121, 122, 123 spaced 90 degrees from each other among the blades a 121, b 122, , Or all the flow paths may be blocked, or all the flow paths may be connected. Therefore, there is no need to control the separate blades with the respective motors, which simplifies the configuration, simplifies the control method, and saves installation space.

5 is a view for explaining an example in which the flow-path-selecting damper unit according to the embodiment of the present invention is applied to an air conditioning apparatus. The air conditioning apparatus 200 shown in FIG. 5 is configured to enable ventilation and dehumidification of a plurality of rooms such as the bathroom 270 and the dress room 280 by a single body 210. At this time, The above-described flow-selective damper unit is applied. 5 includes a main body 210, piping 290 for connecting each room to the main body 210, a main body 210 and a piping 290, And a control unit 250 for controlling the operation of the main body 210 and the dampers 212, 214, 216, and 218. The dampers 212, 214, 216,

A first inlet 211 and a second inlet 213 are provided on one side of the main body 210 and a first outlet 215 and a second outlet 217 are provided on the other side. (220) and a dehumidifying part (230) are installed.

The fan 220 installed in the main body 210 rotates by the rotational power generated by the fan driving motor to produce a flow of air. That is, the fan 220 allows air to flow from the inlets 211 and 213 of the main body 210 toward the outlets 215 and 217.

The dehumidifying unit 230 is provided to remove moisture contained in the air flowing in the inlet 213. The dehumidifying unit 230 condenses moisture in accordance with a change in state of the refrigerant circulating through the heat exchanging system, that is, the compressor, the condenser, A method of removing the ink can be used.

On the other hand, the inlet port and the outlet port provided on both sides of the main body 210 are connected to the bathroom 270 and the dressroom 280 through the pipe 290. In this case, the passageways are opened so that ventilation and dehumidifying functions can be selectively performed for each room Dampers 212, 214, 216, and 218 are applied.

The first damper 212 connected to the first inlet 211 is connected to the bathroom 270 through the second damper 212 and the second damper 214 is connected to the second inlet 213 via the channel selection type shown in FIG. The bathroom 270 and the dressing room 280 are connected to each other via the damper unit. The ventilation duct 240 is connected to the first outlet 215 through a third damper 216 which is a general damper and the second damper 218 is connected to the second damper 218 through a flow- The bathroom 270 and the dressing room 280 are connected to each other.

The operation of the air conditioner shown in FIG. 5 will be described below.

First, when the user selects the bathroom ventilation mode through the operation unit 260, the first damper 212 and the third damper 216 are opened and the second damper 214 and the fourth damper 214 are opened according to the control signal of the controller 250. [ All the flow paths of the damper 218 are in the cut-off state (see (a) of Fig. 4). When the fan 220 operates, the air is introduced into the first inlet 211 through the pipe 290 connected to the bathroom 270, and then exhausted to the ventilation duct 240 through the first outlet 215 .

On the other hand, if the bathroom dehumidifying mode, the dressroom dehumidifying mode, or the simultaneous dehumidifying mode is selected through the operation unit 260, the controller 250 cuts off the first damper 212 and the third damper 216, The state of the second damper 214 and the fourth damper 218 is changed to the state of FIG. 4 (b), (c), or (d) so that the room and the inside of the main body 210 are connected. Accordingly, when the fan 220 and the dehumidifying part 230 are operated to remove moisture from the air entering the bathroom 270 or the dressing room 280, the dried air is returned to the bathroom 270 or the dressing room 280 Can be introduced.

The air conditioning apparatus 200 of FIG. 5 is configured to simultaneously perform the ventilation function and the dehumidification function through one main body 210. Since the flow path-selective damper unit according to the embodiment of the present invention is applied, The size of the control unit 210 can be reduced and the control method can be simplified.

That is, if the main body 210 is connected to the plurality of pipes 290 connected to the main body 210, the size of the main body 210 must be increased by the increase of the number of the inflow ports, so that the space occupied by the main body 210 also increases. In addition, since a damper is provided for each pipe 290 and operated separately, the control is complicated. However, when the flow path-selective damper unit 100 according to the present invention is used as in the second damper 214 and the fourth damper 218 in FIG. 5, the T-shaped blade 120 in which the disk and the half- It is possible to select the flow path connection or to connect all of them and to shut off all of them if necessary. Thus, even if the size of the main body 210 is not increased, the plurality of pipings 290 can be connected And since only one blade 120 is required to be controlled, the design of the controller 250 can be simplified.

Referring to FIG. 5, the first outlet 215 of the main body 210 is connected to the ventilation duct 240. In other words, the ventilation duct 240 is commonly connected to a plurality of generations in the apartment house, so that the smell of other households can flow back through the ventilation duct 240, and when a fire or the like occurs, There is a possibility. For this purpose, the flow path can be blocked through the dampers 212, 214, 216, and 218. If a power failure occurs due to a fire, the dampers 212, 214, 216, and 218 may be left in a state in which they are not closed.

Accordingly, the dampers 212, 214, 216, and 218 are designed to operate in a state of automatically shutting off all the flow paths when a power failure occurs. The driving circuits of the stepping motor J5, which is applied to the flow path-selective damper unit 100 according to the embodiment of the present invention, An example is shown in Fig.

Referring to FIG. 6, when external power is normally applied, a power of 6V is applied to the regulator U12 to output a predetermined required constant voltage, and the power output from the regulator U12 is supplied to the supercapacitor C7 , C9 and the regulator U14.

That is, the regulator U14 outputs the power required for the CPU U9 to enable the CPU U9, and the supercapacitors C7 and C9 are also charged according to the bias of the transistors Q6 and Q5. At this time, the power source applied to the supercapacitors C7 and C9 is also used as a power source (VCC_5V) for driving the stepping motor J5.

If a power failure occurs in an emergency such as a fire, the power charged in the super capacitors C7 and C9 is discharged. At this time, the diodes D12 and D13 block supply of the power charged in the supercapacitors C7 and C9 to other loads.

The power discharged from the supercapacitors C7 and C9 is supplied to the stepping motor J5 as well as to the input terminal of the regulator U13 according to the bias of the transistors Q7 and Q2 and supplied to the CPU U9 The CPU U9 outputs all the necessary power VCC_CPU so that the CPU U9 stops all the existing processes according to a predetermined setting and stops the stepping motor 120 so that the blade 120 cuts off all the flow paths 111, 112 and 113 as shown in FIG. (J5).

Therefore, even if a power failure occurs in an emergency such as a fire, that is, when supply of external power is interrupted, the stepping motor J5 applied to the flow-path-selecting damper unit 100 is operated through the power charged in the super capacitors C7 and C9 Thus, the flow path can be closed so that a toxic gas or the like can be prevented from flowing backward.

Particularly, in the driving circuit of the stepping motor J5 according to the present embodiment, after the initial power supply is used for the operation of the stepping motor J5, the charging is not performed for the stepping motor J5, The stepping motor J5 is charged and the supercapacitors C7 and C9 are charged, so that the stepping motor J5 can be driven to interrupt the flow of gas even if a power failure occurs at any point in time.

Of course, the motor to be applied to the selective damper unit 100 does not necessarily have to use the stepping motor J5, but various types of motors such as a DC GEARED motor and an AC motor and its drive circuit can be used. The present invention is not limited thereto.

The optional damper unit 100 described above may be applied to an air conditioning system that performs a selective ventilation function for a plurality of rooms or more. The description will be made with reference to FIGS. 7 to 12. FIG.

FIG. 7 is a conceptual view for explaining an example in which the flow path-selecting damper unit according to the embodiment of the present invention is applied to an air conditioning system for selective ventilation for a plurality of rooms, FIG. 8 is a schematic view for explaining a piping connection state of the air conditioning system shown in FIG. And shows an example shown on a schematic plan view of a house.

7 and 8, the air conditioning system using the flow path-selective damper unit according to the embodiment of the present invention includes a ventilator 300, a first selectable damper 342, a second selectable damper 343, A damper 341, a plurality of pipes 331 to 339, a controller 344, and a controller 345.

First, the ventilator 300 includes a main body 310, a heat exchange element 323, a first fan 321, and a second fan 322.

The main body 310 having a predetermined space therein has a substantially rectangular parallelepiped shape (of course, there is no restriction on the form), and the first connecting portion 311 and the second connecting portion 311, And a third connecting part 313 and a fourth connecting part 314 are provided downward in the direction of the room 352. [ In addition, a fifth connecting portion 315 is provided on the left side of the drawing to the outdoor 351 side. The first connection part 311 to the fifth connection part 315 serve as passages for allowing air to flow into and out of the main body 310.

A heat exchanging element 323 is installed in the main body 310 and the inside of the main body 310 is divided into a first ventilation space 324 and a second ventilation space 322 along a direction in which air can flow through the heat- (325). The first ventilation space 324 extends from the first connection 311 to the third connection 313 and the second ventilation space 325 extends from the second connection 312 to the fourth connection 314.

The heat exchanging element 323 installed inside the main body 310 is a structure for preventing heat loss by crossing the air in the room 352 and the air in the room 351.

A first fan 321 is installed in the first connection part 311 and a second fan 322 is installed in the fourth connection part 314 in the main body 310. The first fan 321 and the second fan 322 rotate by the rotational power generated by a fan drive motor (not shown) to produce a flow of air. Specifically, the first fan 321 generates an air flow in the direction of the outdoor 351 from the first connection portion 311, and the second fan 322 generates an air flow in the direction of the room 352 from the fourth connection portion 314 I make it.

The first connection part 311 and the second connection part 312 of the main body 310 are connected to the outdoor 351 through the first piping 331 and the second piping 332, The fourth connection portion 314 is connected to the room 352 through the third pipe 333 and the fourth pipe 334, respectively. At this time, the third connection part 313 and the third piping 333 are connected via the ventilation damper 341.

The fifth connection part 315 of the main body 310 is provided at a position adjacent to the first fan 321 and shares the first ventilation space 324 together with the first fan 321 and the first connection part 311. One side of the ventilation pipe 335 is connected to the fifth connection part 315 and the other side of the ventilation pipe 335 is connected to the flow path C of the first selectable damper 342.

Here, the first selectable damper 342 and the second selectable damper 343 are the flow path-selective damper unit described above with reference to Figs. 3 and 4. Accordingly, the concrete connection states of the first selectable damper 342 and the second selectable damper 343 and the remaining pipe will be described as follows.

The flow path B of the first selectable damper 342 communicates with the bathroom 1 353 through the bathroom 1 piping 336 and the flow path C is connected to the main body 310 of the ventilator 300 through the ventilating pipe 335 And is connected to the fifth connection portion 315 provided. The flow path A of the first selectable damper 342 is connected to the flow path C of the second selectable damper 343 through the connecting pipe 337.

The flow path A of the second selectable damper 343 communicates with the bathroom 2 354 through the second piping 339 of the bathroom and the flow path B communicates with the kitchen 355 through the main piping 338, have.

The air conditioning system shown in FIG. 7 and FIG. 8 enables a heat exchange ventilation that minimizes heat loss by supplying and exhausting air by crossing the air outside the room 352 by using one ventilator 300, Enables selective ventilation of the room. A control signal is outputted from the control unit 344 in response to a user command input through the controller 345 to rotate the blades of the first selectable damper 342 and the second selectable damper 343 or to rotate the blades of the second selectable damper 343, And the first fan 321 and the second fan 322 are operated to perform heat exchange with the room 352 or selective ventilation to a plurality of rooms. Operation states according to each mode will be described below.

7, when the user command is inputted through the controller 345 to operate in the general heat exchange ventilation mode, the controller 344 controls the first and second selectable dampers 342 and 343, Outputs a signal to block all the flow paths. Of course, if the first selectable damper 342 is set to shut off all the flow paths, the blade of the second selectable damper 343 is automatically shut off at any position.

The ventilation damper 341 is opened and the first fan 321 and the second fan 322 are operated together. The air in the room 352 enters the first ventilation space 324 inside the main body 310 through the third piping 333, the ventilation damper 341 and the third connection part 313, 323 and is exhausted to the outside 351 along the first connection 311 and the first pipe 331.

In addition, the outdoor air 351 enters the second ventilation space 325 inside the main body 310 through the second piping 332 and the second connection portion 312, passes through the heat exchange element 323, And flows into the room 352 along the connection portion 314 and the fourth pipe 334. [ Thus, the air outside the room 352 is crossed by the heat exchanging element 323 to perform heat exchange, thereby operating the heat exchange ventilation mode. When the temperature difference between the outside of the room 352 such as during summer or winter is large, the heat loss can be greatly reduced through heat exchange ventilation.

9, the controller 344 actuates the blades of the first selectable damper 342 to operate the ventilation pipe 335 and the bathroom 1 (not shown) So that the pipe 336 is connected. The control unit 344 also cuts off the ventilation damper 341, stops the operation of the second fan 322, and operates the first fan 321 to generate the airflow in the first ventilation space 324.

At this time, it is impossible to allow air in the room 352 to flow in accordance with the closing of the ventilation damper 341 through the third connection part 313. On the other hand, the bathroom 1 piping 336 is connected to the first ventilation space 324 through the first selectable damper 342, the ventilation pipe 335, and the fifth connection portion 315. Therefore, the air in the bathroom 1 353 flows into the outdoor 351 along the first piping 331, the first selective damper 342, the ventilation piping 335, the fifth connection 315, and the first piping 331 Can be exhausted.

Here, since the second fan 322 is in a stopped state, the flow of air does not occur in the second ventilation space 325, so that the heat exchange phenomenon does not occur.

10 shows the ventilation state of the bathroom 2 354. FIG. The control unit 344 controls the blades of the first selectable damper 342 to connect the ventilation pipe 335 and the connection pipe 337 in accordance with a user's command input through the controller 345, (333) and the connecting pipe (337) are connected to each other. In addition, the control unit 344 cuts off the ventilation damper 341 and operates only the first fan 321.

Therefore, the air in the bathroom 2 354 flows through the second piping 339, the second selective damper 343, the connecting piping 337, the first selective damper 342, the ventilation piping 335, and the fifth connecting portion 315, - can be discharged to the outdoor 351 through the first pipe 331.

11 shows the simultaneous ventilation state of the bathroom 1 (353) and the bathroom 2 (354). That is, in accordance with the user command inputted to the controller 345, the control unit 344 causes all the flow paths of the first selectable damper 342 to be connected and the second selectable damper 343 to connect the bathroom second pipe 339 and the connecting pipe 337) are connected. In addition, the ventilation damper 341 is cut off and the first fan 321 is operated.

In this state, the air in the bathroom 1 353 and the air in the bathroom 2 354 can be sucked together and exhausted. Air in the bathroom 1 353 flows through the bathroom 1 pipe 336, the first selective damper 342, the ventilation pipe 335, the fifth connection 315, and the first pipe (not shown) The air in the bathroom 2 354 is exhausted to the bathroom 2 piping 339 through the second selective damper 343 and the connecting piping 337 to the first selective damper 342 The first selective damper 342 merges with the air in the bathroom 1 353 and is discharged to the outside 351. [

When simultaneous exhaustion to two or more rooms is required, the control unit 344 increases the number of revolutions of the motor that drives the first fan 321, thereby compensating for the loss due to dispersion.

Fig. 12 shows the ventilation state of the kitchen 355. Fig. That is, the controller 344 causes the first selectable damper 342 to connect the ventilation pipe 335 and the connection pipe 337 in accordance with the user command input, and the second selectable damper 343 to connect with the kitchen pipe 338 So that the pipe 337 is connected. Similarly, the ventilation damper 341 is cut off and the first fan 321 is operated.

The air in the kitchen 355 flows through the main piping 338, the second selective damper 343, the connecting piping 337, the first selective damper 342, the ventilation piping 335, the fifth connecting portion 315, And can be discharged to the outside 351 through the first pipe 331.

9 to 12 illustrate the ventilation of each room or the simultaneous ventilation of some rooms. However, according to the setting of the first selectable damper 342 and the second selectable damper 343, another combination of simultaneous room ventilation Is also possible.

As described in detail above, in the air conditioning system using the flow-path-selective damper unit according to the embodiment of the present invention, it is not necessary to provide a plurality of ventilators, and only one ventilator can perform selective ventilation or simultaneous ventilation There is a possible advantage.

In addition, it is unnecessary to install the ventilation device in each kitchen or bathroom, so that the generation of noise is very small and the backflow of smoke and odor due to fire or power failure can be prevented due to the automatic shutoff function during power failure.

In addition, since existing bathroom ventilating equipment has to operate other bathroom together for ventilation of one bathroom, the efficiency of ventilation is decreased and unnecessary energy loss occurs, and the duct of the individual space is opened when the equipment is turned off, However, according to the present invention, it is possible to individually control each room, so that energy efficiency is high, and smell is prevented by blocking individual spaces according to the rotation of the blades of the flow-selective damper unit when the equipment is turned off.

In addition, since the flow path-selective damper unit of the present invention substantially performs the function of two existing dampers, the damper installation cost can be reduced, and a large number of piping can be used for common use.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And additions should be considered as falling within the scope of the claims of the present invention.

100: Flow path type damper unit
110: duct connection
111: Euro A
112: Euro B
113: Euro C
114: Blade rotation space
115: Axis connecting ball
116: Cover
117: Axis Branch
120: blade
121: blade a
122: blade b
123: blade c
124: Axis
130:
200: air conditioner
210:
211: first inlet
212: first damper
213: second inlet
214: second damper
215: first outlet
216: third damper
217: second outlet
218: fourth damper
220: Fan
230: Dehumidification part
240: Ventilation duct
250:
260:
270: Bathroom
280: Dress Room
290: Piping
300: ventilation device
310:
311: first connection part
312: second connection portion
313: Third connection part
314: fourth connecting portion
315: fifth connection portion
321: First fan
322: Second fan
323: Heat exchanger element
324: first ventilation space
325: Second ventilation space
331: First piping
332: Second piping
333: Third piping
334: fourth piping
335: Ventilation piping
336: Bathroom 1 piping
337: Connection piping
338: Kitchen piping
339: bathroom 2 piping
341: Ventilation damper
342: a first selective damper
343: second selective damper
344:
345: Controller
351: Outdoor
352: Indoor
353: Bathroom 1
354: Bathroom 2
355: Kitchen

Claims (4)

A duct connecting portion having a T-shaped flow path A, a flow path B and a flow path C, the flow path A and the flow path B being connected in a straight line and the flow path C being branched perpendicularly to the flow path A and the flow path B;
Wherein the blade a and the blade c are connected in a straight line and the blade b extends perpendicularly to the blade a and the blade b, A blade that is seated at a point where the A, the flow path B and the flow path C intersect and rotates 360 degrees in both directions; And
And a driving unit for rotating the blade,
When the blade a rotates by the driving unit and the blade b runs over both ends of the flow path C or when the blade b and the blade c run across both ends of the flow path C, When the blade b and the blade c are connected to both ends of the flow path A, the flow path B and the flow path C are connected. When the blade a and the blade b run across both ends of the flow path B, And when the blade a and the blade c are located at one point between the both ends of the flow path A or both ends of the flow path B, the flow path A, the flow path B, and the flow path C are all connected,
Wherein the driving unit rotates the blade so that the entire connection of the flow path A, the flow path B, and the flow path C is interrupted when the supply of external power is interrupted.
The method according to claim 1,
The blade has a shape in which a half disk corresponding to the blade b is coupled to the center of the disk corresponding to the blade a and the blade c,
Wherein a spherical blade rotating space is formed at a point where the flow path A, the flow path B, and the flow path C of the duct connecting portion intersect, the spherical blade rotating space on which the blade is seated and is rotatable.
A ventilator for discharging indoor air to the outside through driving of the fan;
A ventilation pipe connected to the ventilator at one side and a selective damper for selecting a plurality of flow paths at the other side; And
And a selective damper connected to the other side of the ventilation pipe to communicate at least one of the at least two rooms with the ventilation duct side,
The optional damper is applied to the flow-path-selective damper unit of the above item 1 or 2,
It is possible to increase the efficiency by ventilating one or a plurality of rooms selected from at least two rooms according to the position of the blade of the selective damper or to prevent the backflow of smoke or odor due to the blade blocking the entire flow path of the duct connection Air conditioning system using a damper unit of a flow-selective type.
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