JPH11294821A - Air-supply and exhaust path for concurrent suction and exhaust ventilation system machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a normal airflow in an air-supply and exhaust path in a concurrent suction and exhaust ventilation system machinery used in general residence. SOLUTION: A concurrent suction and exhaust ventilation system has such an arrangement which comprises an outdoor opening 4b communicated with an air-supply blower 2 and an air path 3b, an outdoor opening 4a communicated with an exhaust blower 5 and an air path 3a, opening and closing dampers 6, 7, 8 and 9 provided on the way of the air paths 3a, 3b, and a control unit 10 for switching the opening and closing dampers. By switching the opening and closing dampers, the air paths 3a, 3b at the side of the outdoor openings 4a, 4b can be switched to an air-supply flow or an exhaust flow, so that the exhaust flow blows off and removes dust or the like which has attached to and deposited on the outdoor openings with the air-supply flow, thereby obtaining an air-supply and exhaust path for the concurrent suction and exhaust ventilation system machinery.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supply / exhaust path for a simultaneous intake / exhaust ventilation system device installed in a building or the like.

[0002]

2. Description of the Related Art Conventionally, this type of ventilation system equipment includes:
There is a heat exchange ventilator described in Japanese Patent Application Laid-Open No. 5-157299.

The heat exchange ventilator will be described below with reference to FIG.
This will be described with reference to FIG. As shown in the drawing, an air supply fan 101 that introduces air from outside into a room, an exhaust fan 102 that exhausts air from inside a room, an air supply side passage 103a through which air introduced into a room passes, and an outside fan And a heat exchanger 103 for exchanging heat between air passing through one path and air passing through the other path. An air condition detecting means 104 disposed near the outlet of the exhaust-side passage 103b of the heat exchanger 103 for detecting a state of air passing through the exhaust-side passage 103b; The air supply fan 10
And a switch mechanism 105 for temporarily controlling the rotation of the first air conditioner. In a cold region in winter, when the temperature of the outdoor air falls below the freezing point, the indoor air that has become hot and humid by heating is heated by the heat exchanger 103. And the water vapor becomes supersaturated and condenses on the outlet side of the exhaust-side passage 103b and freezes before the clogging state due to freezing occurs.
Condition detecting means 104 disposed near the outlet of the air conditioner
The switch mechanism 105 temporarily brakes the rotation of the air supply fan 101 on the basis of the output signal to prevent clogging.

[0004]

On the outdoor side of such a conventional simultaneous intake / exhaust ventilation system equipment, an air supply port and an exhaust port are provided on the wall surface of the building, and an upstream air supply duct D on the air supply side passage 103a is provided. ₁ and communicates with the heat exchanger 103 by the downstream-side exhaust duct D ₄ on the exhaust side passage 103b, the air supply port and the exhaust port are insect screen is mounted to prevent insects and dust intrusion. In summer and mid-season, insects adhere in addition to dust, and especially at the air supply port, ventilation resistance occurs, and the supply air volume required for ventilation decreases. Therefore, it is necessary to maintain a predetermined ventilation volume by periodic cleaning, but the location where the air supply / exhaust port is attached to the building is often inaccessible to people, such as under the eaves, so that sufficient cleaning cannot be performed. In addition, there is a problem in that the clogging of the air supply port itself is often not noticed, and it is desired to automatically prevent the air supply port from being clogged.

An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a supply / exhaust path of a simultaneous intake / exhaust ventilation system device in which an insect repellent net at an intake / exhaust port can be automatically cleaned. It is what it was.

[0006]

In order to achieve the above object, the supply / exhaust path communicating with the outdoor opening of the simultaneous intake / exhaust ventilation system equipment of the present invention is switched alternately by the switching control means. It is designed to be switched.

According to the present invention, insects, dust and the like adhering to the insect repellent net on the air supply path so as to be sucked by the air supply flow are blown off by the exhaust flow when switching to the exhaust path, so that cleaning is performed. A possible supply and exhaust path for simultaneous intake and exhaust ventilation system equipment is obtained.

Another means is a switching control means for the supply / exhaust path, wherein the switching control section performs a switching operation at predetermined time intervals by an output signal from the timed opening / closing control section.

According to the present invention, it is possible to obtain a supply / exhaust path of a simultaneous intake / exhaust ventilation system device in which a path is automatically switched at a predetermined interval by setting a switching time interval of the timed opening / closing control unit.

Another means is provided with a switching control section which operates in response to an output signal from the supply air flow state detecting means.

According to the present invention, a supply / exhaust path of a simultaneous intake / exhaust ventilation system device that switches the path according to a change in the airflow state in the supply path is obtained.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a supply air blower and an exhaust blower, and two air paths communicating each of the blowers with the outdoor opening are branched into two branches, and open / close dampers are provided in each branch. The air paths on the air supply and exhaust port sides are respectively connected in parallel to the open / close dampers on the air supply blower side and the exhaust blower side. The open / close dampers are switched by switching the open / close of the four open / close dampers by switching control means. The air path on the outdoor opening side can be switched to a supply air flow or an exhaust air flow.

[0013] Further, a three-way damper is provided in each of the air supply and exhaust blowers and each air path connecting the blower to the outdoor opening. The air path on each blower side is branched into two branches, each of which is connected in parallel to a three-way damper on a different air path side. By switching the opening and closing of two dampers by switching control means, the three-way damper is switched. The air path on the outdoor opening side can be switched to a supply air flow or an exhaust air flow.

[0014] Further, an air supply blower and an exhaust blower, a multipath damper, and a switching control means for the damper are provided in the middle of an air path connecting the blower with the outdoor opening. This damper is box-shaped, and the middle of the two facing surfaces is divided into front and rear by front and rear partition walls, one of which is an indoor compartment, and the other is an outdoor compartment. An air supply chamber that communicates with the blower and an exhaust chamber that communicates with the exhaust blower. The outdoor compartment is divided into left and right,
The front and rear partition walls, each communicating with a separate outdoor opening,
An opening / closing plate is horizontally and horizontally rotatably supported by a support shaft at a position equally divided into four parts. The two side-by-side open / close plates seen from the air supply chamber side are fixed to the air supply damper switch, one of which is open and the other is closed, and the exhaust chamber also has two open / close plates. The exhaust damper is opened and closed in a state that one is closed and the other is open in the opposite symmetry to the air supply chamber, and when the open / close plate on the air supply chamber side is opened, air is supplied. The opening / closing plate of the chamber is opened at the location where the air supply chamber is opened and at the location on the diagonal line. In this manner, the air supply flow and the exhaust flow can be switched by reversing the open / close position of the open / close plate up and down.

In addition, a predetermined portion is brought close to a parallel state in the middle of each air flow path connecting the air supply blower and the exhaust blower with the air supply port and the exhaust port so as to be detachably detachable, and separately separated from the parallel state part. The two end portions are of the same shape and the same size, and the intersecting portions where the routes cross each other in the middle are overlapped by being shifted by 90 degrees from each other, and a route switching portion fixed to a rotatable disk, and switching control of this route switching portion Means is provided, and the supply air flow and the exhaust air flow can be switched by rotating the path switching unit by 90 degrees.

The switching control means includes a timed opening / closing control section and a switching control section. The switching control section opens and closes the power supply of the switching control section and switches the connection circuit as time elapses. By switching the power supply to the switching control unit and switching the connection circuit, the outdoor path of the supply air flow and the exhaust air flow can be automatically switched.

The switching control means detects a change in the pressure or air volume of the supply air flow by means of a supply air flow state detection means provided in the air flow path and inputs the detected change as a signal to the switching control section. By switching the connection circuit, the outdoor path of the supply air flow and the outdoor flow of the exhaust air flow can be automatically switched.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0019]

(Embodiment 1) As shown in FIGS. 1, 2 and 3, the heat exchange air unit 1 of the simultaneous intake / exhaust ventilation system equipment is usually installed in the attic or the ceiling of a building, and air is blown from outside the room. An air supply blower 2 introduced into the room, an exhaust air blower 5 discharging the air inside the room to the outside, and a supply air flow b introduced into the room
, And a heat exchanger 13 for exchanging heat between the exhaust stream a and the supply air stream b. Outdoor openings 4a and 4b are provided on the outer wall of the building, and the exhaust flow a and the supply air flow b are supplied and exhausted from the outdoor openings 4a and 4b. Although not shown on the indoor side, an air path provided between the indoor opening and the air supply / exhaust flow provided on the indoor side communicates with the air paths 3a and 3b via the heat exchanger 13. And the heat exchanger 13 and the outdoor opening 4a,
4b, four opening / closing dampers 6, 7, 8, 9 are arranged, and the outdoor side of the air path 3b is branched into two branches to form a branch path 3b.
_1, 3b ₂ and then similarly air path 3a is branched path 3a _1,
Branches to 3a _2. Branch path 3b ₁ and the opening and closing damper 8, branch path 3b ₂ and the opening and closing damper 9, branch path 3a ₁ and the opening and closing dampers 6 are respectively connected to the branch path 3a ₂ and the opening and closing damper 7. On the other hand, the outside path is a branch path 3b ₁ from the opening / closing damper 8.
And a branch path 3a ₁ from closing damper 6 and joins the outdoor side path 11b communicates with the outdoor opening 4b, the outdoor-side path branching path 3a ₂ from branch route 3b ₂ and the opening and closing damper 7 from closing the damper 9 11a and the outdoor opening 4
communicate with a. The opening / closing dampers 6 and 9 and the opening / closing dampers 7 and 8 form a set, respectively, and are connected by the control unit 10 and the electric circuit 12. Although not shown, the opening / closing dampers 6 and 9 each have an opening / closing drive unit such as an electromagnetic switch or a stepping motor, and are opened and closed by the control unit 10 so that the opening and closing are reversed for each set. Further, the outdoor openings 4a and 4b are entirely covered with a net (not shown) made of metal or the like for preventing insects and dust from entering from outside.

In the above configuration, when the opening / closing dampers 6, 9 are "open" and the opening / closing dampers 7, 8 are "closed" (FIG. 2), the exhaust flow a from the exhaust blower 5 flows from the air path 3a to the branch path 3a _1. flows to 3a ₂ exhaust stream a so closing the damper 7 is closed is discharged the outdoor side path 11b from the street outside the opening 4b from the damper 6. At the same time, the supply air flow b sucked into the air supply blower 2 is transferred from the air path 3b to the branch paths 3b ₁ , 3b.
b air supply b so follow me frenzy closing damper 8 is closed to ₂ is sucked from the outdoor opening 4a via the outdoor side path 11a from the damper 9. In this way, fresh indoor air is supplied at the same time as the indoor air contaminated by human life is discharged, and the heat exchanger 13 exchanges heat between the exhaust stream a and the supply stream b during this process. And the outdoor opening 4
Outside the area a, insects flying on the outside air and various kinds of dust are accumulated, which acts as resistance and reduces the supply air flow rate. Also, in the severe winter season, snowflakes and the like also adhere, and the resistance further increases, and the balance of simultaneous supply and exhaust is greatly disrupted, and ventilation becomes impossible.

When the open / close state of the open / close damper is reversed by the control unit 10 (FIG. 3), the open / close dampers 7, 8 are opened and the open / close dampers 6, 9 are closed, and the exhaust air from the exhaust blower 5 is exhausted. The flow “a” passes through the open / close damper 7 opened from the air path 3 a and passes through the outdoor path 11 a to the outdoor opening 4.
However, at this time, dust and the like adsorbed by the air supply flow b to the outside of the outdoor opening 4a are blown off so as to be pushed out from the inside. The air path 3b of the supply air blower 2 will be sucked communicates with the outdoor-side path 11b via the branch path 3b ₁ which communicates with the opening and closing damper 8 becomes "open", the outside air from the outdoor opening 4b, the outside air The dust and the like will then adhere to the outside of the outdoor opening 4b.

The control unit 10 is provided with a timer function and an open / close switching control unit, and the open / close dampers 6, 7,
By switching 8, 9 automatically, the outdoor opening 4a,
4b can be removed. In addition, if the function of detecting the state of the air flow in the air path is used instead of the timer function, when the predetermined value changes from the normal air flow state, the opening and closing of the open / close dampers 6, 7, 8, 9 is automatically switched. it can.

(Embodiment 2) As shown in FIG. 4, FIG. 5 and FIG. 6, the heat exchange air unit 1 communicates with the indoor side of an air supply blower 2 and an exhaust blower 5 for introducing outdoor air into a room. comprises a vessel 13, the branch air passage 3a becomes tip bifurcated branch path 3a ₁ and branch path 3a ₂ on the outdoor side of the exhaust fan 5, and the tip is bifurcated in the outdoor side of the air supply blower 2 air path 3b are communicated with each of the branches path 3b ₁ and branch path 3b _2.

The four branch paths are two three-way dampers 1
It communicates with 4 and 15. The three-way damper has an intermediate connection port C,
It has three connection ports C, L, and R in total, including the connection ports L and R, whose communication with the intermediate connection port C is opened or closed by switching the damper. That branch path 3a ₁ is to connect port 14L, branch path 3a ₂ is to connect port 15L, branch path 3b ₁ is to connect port 14R, branch path 3b ₂ are connected port 15R
Connected to communicate with And the middle connection port 14C
Communicates with the outdoor opening 4b via the outdoor path 11b, and the connection port 15C communicates with the outdoor opening 4a via the outdoor path 11a. The two three-way dampers 14 and 15 are electrically connected to the control unit 16 and are set to open and close in the opposite directions according to the operation instruction signals. That is, when the connection port 14C and the connection port 14L are closed in the three-way damper 14, the connection port 15C and the connection port 15L in the three-way damper 15 are configured to be open.

In the above configuration, as shown in FIG. 5, the connection ports 14C and 14L of the three-way damper 14 are "closed",
When the connection port 14R is “open”, on the other hand, in the three-way damper 15, when the connection port 15C and the connection port 15L are “open” and the connection port 15R is “closed,” the exhaust air flow a that flows to the branch path 3a ₁ is connection port 14L is discharged from the street outside the opening 4a of the outdoor side path 11a and the connection port 15L are opened from the branch path 3a ₂ since the via connection port 15C is closed. At the same time because the air intake b flows from the branch path 3b ₁ through connection port 14R is 3 channel damper 14 are opened and the connection port 14C that communicates to the outdoor to the air path 3b, ambient air outside the opening through the outdoor-side path 11b Part 4
b, dust and the like adhere and accumulate over time outside the outdoor opening 4b.

When the switching state of the three-way dampers 14 and 15 is reversed by the control unit 16 as shown in FIG. 6, the connection ports 14C and 14L are opened and the connection ports 14R are closed. , The connection ports 15C and 15L are "closed" and the connection ports 15R are "open", and the exhaust flow a is a branch path 3a of the air path 3a.
It is discharged from the outdoor opening 4b from ₁ through the connection port 14L and the outdoor path 11b. Then, dust and the like adhering to the outside of the outdoor opening 4b that has been adsorbed before are blown off. And outside air is sucked in from the outdoor opening 4a,
The supply air flow b flows from the outdoor path 11a to the branch path 3b ₂ and the air path 3b through the connection ports 15C to 15R of the three-way damper 15.

The switching drive units of the three-way dampers 14 and 15 use an electromagnetic switch or a stepping motor or the like, and the function of the control unit 16 is the same as that described in the first embodiment.

(Embodiment 3) In this embodiment, the air paths 3a, 3b and the air passages 3a, 3b communicating the heat exchange air unit 1 and the outdoor openings 4a, 4b of the simultaneous intake / exhaust ventilation system equipment described in the first and second embodiments are described. Since the present invention relates to the configuration of a damper that reverses the directions of two air flows formed by the outdoor-side paths 11a and 11b by interposing a damper, the above-described components are the same, and detailed descriptions and illustrations are given. Is omitted.

As shown in FIG. 7, FIG. 8, and FIG. 9, the four-way damper 17 is a rectangular box body, and a damper mounting plate 25 is fixed so as to divide the inside into an indoor side and an outdoor side with the center being front and rear. The left and right rooms 29 and 29 are divided into left and right by the partition wall plate 26 on the outside.
The interior side is vertically divided by a partition wall plate 27, and an upper air supply chamber 30 and a lower exhaust chamber 31 are provided. Each of the outdoor sections is provided with a flanged outdoor opening 28a, 29a, and a flanged air supply opening 30 is provided to the indoor air supply chamber 30.
b, an exhaust opening 31a is provided in the exhaust chamber 31. The damper mounting plate 25 has damper openings 32, 33,
Damper vanes 36, 3 corresponding to 34 and 35, respectively.
7, 38 and 39 are provided. And damper wing 36
And 37 are provided side by side on the rotation shaft 19 of the damper drive unit 18 on the air supply side, and the damper blades 38 and 39 are provided on the rotation shaft 21 of the damper drive unit 20 on the exhaust side like the upper side. At this time, the damper blade 36 is horizontal, that is, the damper opening 3
2 so that the damper blade 37 is vertical, ie, the damper opening 33 is closed, the damper blade 38 is vertical, ie, the damper opening 34 is closed, and the damper blade 39 is horizontal, ie, the damper opening 35 is open. Can be The damper driving units 18 and 20 have built-in stepping motors or electromagnetic switches, are electrically connected to a control unit (not shown), and are configured to simultaneously reciprocate the rotating shafts 19 and 21 in the same direction by 90 degrees. Is done.

The operation of the above configuration will be described with reference to FIG. 8, which is the same as FIG.

The exhaust stream a from the exhaust blower 5 is supplied to the air path 3
a into the exhaust chamber 31 of the four-branch damper 17, flows through the outdoor path 11b connected from the left chamber 28 to the outdoor opening 28a through the damper opening 35 where the damper blade 39 is horizontal and open, It is discharged from the outdoor opening 4b. At the same time, when the air supply flow b sucked into the air supply blower 2 reverses from the air path 3b to the air supply chamber 30 through the air supply opening 30b, the damper blades 36 pass through the horizontal and open damper openings 32. Outside air is sucked in from the outdoor opening 4a via the right chamber 29 and the outdoor path 11a.

Next, when an electric signal is sent to the damper driving units 18 and 20, the rotating shafts 19 and 21 are simultaneously rotated by 90 degrees in the same direction, and the damper blades 36, 37, 38 and 39 are moved from horizontal to vertical and vertically. From horizontal to horizontal, and as shown in FIG. 9, the damper opening 32 of the air supply chamber 30 is "open" →
"Closed", the damper opening 33 changes from "closed" to "opened", so the air path leads from the right chamber 29 to the left chamber 28 and the outdoor opening 4
The outside air is sucked from b. On the other hand, the exhaust stream a also enters the exhaust chamber 31 from the air path 3a, enters the right chamber 29 through the damper opening 34 that has been changed from "closed" to "open," and is discharged from the outdoor opening 4a via the outdoor path 11a. The Rukoto.

(Embodiment 4) FIGS. 10, 11 and 12
As shown in (1), a path switching unit 51 is provided in the middle of the air path 42 of the air supply blower 41, the air path 45 of the exhaust blower 44, and the air paths of the outdoor paths 11a and 11b. The path switching unit 51 is connected to the air path 4 communicating with the air paths 42 and 45.
3 and 46, and a disk-shaped path moving section 52 is rotatably locked by a rotating shaft 53 in the middle of the two paths. Although not shown, the rotating shaft 53 is operated by a control unit (not shown) in conjunction with a stepping motor or the like. The path moving section 52 is a moving parallel path 4 communicating with the air paths 43 and 46.
Moving intersection paths 49 and 50 where the paths intersect with the above-mentioned moving parallel paths 47 and 48 at the position where they intersect at an angle of 90 degrees about the rotation axis 53 with the same shape and the same size.
Is provided.

The operation of the route moving section 52 in the above configuration will be described with reference to FIG. That is, when the path moving unit 52 of the path switching unit 51 is in communication with the air paths 42 and 45, in other words, the moving parallel paths 47 and 4
8 communicates with the air flow 45 from the air path 45 to the moving parallel path 48 via the air path 46 of the path switching unit 51.
And is discharged to the outdoor path 11b. The supply air flow b is transmitted from the air path 42 to the air path 43,
The outside air is sucked and flows from a path that communicates with the outdoor path 11a through the path 7. Next, as shown in FIG. 12, when the route moving unit 52 turns 90 degrees by a command signal of the control unit,
The air path 43 connected to the air path 42 of the supply air flow b communicates with the moving intersection path 49 and sucks outside air from the outdoor path 11b. The exhaust air flow a also passes through the moving intersection path 50 from the air path 45 via the air path 46, and the outdoor path 11a.
Will be discharged from That is, the exhaust flow a and the supply air flow b
Are replaced in the outdoor paths 11a and 11b. The turning of the route moving unit 52 is 90
It may be a reciprocating motion in increments of degrees or a turning in one direction.

(Embodiment 5) As shown in FIG. 13, a control section 10 as a switching control means opens and closes the electric circuit 12 by a time switch mechanism in which a timer and a switch for an electric contact are combined. Basically, it may be a mechanical time switch, but it is also composed of a microcomputer and peripheral circuits, and operates the opening / closing drive of each open / close damper in a timed manner.

(Embodiment 6) As shown in FIG. 14, the control unit 10 as a switching control means includes a pressure sensor 54 as a supply air flow state detecting means in the outdoor paths 11a and 11b to change the pressure of the air flow. Is input as an output signal to a time switch mechanism provided in the control unit 10 to control the drive unit of each damper. The time switch mechanism switches the supply air flow to the exhaust air flow when the pressure of the air flow falls below a predetermined value. In the case of an exhaust flow, the outdoor openings 4a and 4b are not closed, so that the air pressure does not decrease.

[0037]

As is apparent from the above embodiments, according to the present invention, the air supply blower, the exhaust blower and the outdoor opening are respectively connected by air paths, and an opening / closing damper is provided in the middle of the air paths to open and close. Since the air flow passing through the outdoor opening is switched to air supply or exhaust by opening and closing the damper, dust or the like adhering to the outdoor opening during air supply can be blown off when switched to the exhaust flow. Therefore, it is possible to provide a supply / exhaust path for the simultaneous intake / exhaust ventilation system equipment, which has an effect that the outdoor opening normally provided at a high place can be safely cleaned and the ventilation state can always be maintained normally.

Further, the degree of freedom of construction is increased by selecting a three-way damper, a four-way damper integrally built in, and a device that switches the air path between those that intersect with the moving parallel part according to the processing air flow rate and the installation location. Thus, it is possible to provide a supply / exhaust path of the simultaneous intake / exhaust ventilation system equipment having the effect.

The switching of the opening / closing damper is automatically switched by the timed opening / closing control section or the supply air flow state detecting section, so that the air flow passing through the outdoor opening is automatically switched to the outdoor opening. It is possible to provide an air supply / exhaust path for a simultaneous air supply / exhaust ventilation system device which automatically removes dust and the like, does not require any human attention, and has an effect of always maintaining a normal ventilation state.

[Brief description of the drawings]

FIG. 1 is a supply / exhaust path diagram according to a first embodiment of the present invention.

FIG. 2 is a diagram showing the same supply / exhaust state.

FIG. 3 is a diagram showing a supply / exhaust state after the switching.

FIG. 4 is a supply / exhaust path diagram of the second embodiment.

FIG. 5 is a diagram showing the supply / exhaust state of the same.

FIG. 6 is a diagram showing a supply / exhaust state after the switching.

FIG. 7 is a perspective view showing a supply / exhaust path of the third embodiment.

FIG. 8 is a perspective view showing the same supply / exhaust state.

FIG. 9 is a perspective view showing a supply / exhaust state after the switching.

FIG. 10 is a cross-sectional plan view of a main part showing a supply / exhaust path of the fourth embodiment.

FIG. 11 is a perspective view showing the same supply / exhaust state.

FIG. 12 is a perspective view showing a supply / exhaust state after the switching.

FIG. 13 is a diagram showing a damper switching means of the present invention.

FIG. 14 is a view showing another damper switching means.

FIG. 15 is a diagram showing a conventional air supply / exhaust state;

[Explanation of symbols]

Reference Signs List 1 heat exchange air unit 2 air supply blower 3a air path 3a ₁ branch path 3a ₂ branch path 3b air path 3b ₁ branch path 3b ₂ branch path 4a outdoor opening 4b outdoor opening 5 exhaust blower 6 opening / closing damper 7 opening / closing damper 8 opening / closing Damper 9 Opening / closing damper 10 Control unit 11a Outdoor path 11b Outdoor path 12 Electric circuit 13 Heat exchanger 14 Three-way damper 15 Three-way damper 16 Control part 17 Four-way damper 18 Damper driving part 20 Damper driving part 25 Damper mounting plate 28 Left Room 29 Right room 30 Air supply room 31 Exhaust room 32 Damper opening 33 Damper opening 34 Damper opening 35 Damper opening 36 Damper wing 37 Damper wing 38 Damper wing 39 Damper wing 41 Air supply blower 42 Air path 43 Air path 44 Exhaust blower 45 Air Path 46 Air path 47 Moving parallel path 48 Moving parallel path 49 Moving crossing path 50 Moving crossing path 51 Path switching unit 52 Path moving unit 53 Rotating shaft 54 Pressure sensor a Exhaust flow b Supply air flow C Connection port L Connection port R Connection port

Claims (6)

[Claims] An outdoor opening communicating with an air supply blower by an air path, an outdoor opening communicating with an exhaust air blower by an air path, and each of the two air paths is bifurcated on the side of the blower. An opening / closing damper is provided at each of the branched ends thereof, and the outdoor opening is connected in parallel to an opening / closing damper on a supply air blower side and an exhaust blower side, respectively, and further comprising switching control means for the opening / closing damper; The air supply / exhaust path of a simultaneous air intake / exhaust ventilation system device that switches the air path on the outdoor side from the open / close damper to an air supply flow or an exhaust flow by switching the opening / closing of the air conditioner. 2. An outdoor opening communicating with an air supply blower by an air path, an outdoor opening communicating with an exhaust blower by an air path, and a three-way damper provided in the middle of each of the two air paths. A three-way damper switching control means is provided, and the air path on each blower side is branched into two branches, each of which is connected in parallel to the three-way damper on a different air path side to open and close the two three-way dampers. A supply / exhaust path of a simultaneous intake / exhaust ventilation system device that switches an air path on the outdoor side from the three-way damper to an air supply flow or an exhaust flow by switching. 3. An outdoor opening communicating with an air supply blower by an air path, an outdoor opening communicating with an exhaust blower by an air path, and a four-branch damper provided in the middle of each of the two air paths. A switching control means for the four-way crossing damper;
The air path on the supply / exhaust blower side is connected to one of the four-junction dampers, the air path on the supply / exhaust side is connected to the other, and the open / close of the four-junction damper is switched to supply the outdoor air path. The air supply / exhaust path of the simultaneous intake / exhaust ventilation system equipment that switches to the air path or the exhaust path. 4. Two air paths, an outside air supply opening communicating with the air supply blower by an air path, an outside air exhaust opening communicating with the exhaust blower by an air path, and a predetermined air path between the two air paths. The moving parallel part is fixed to a movable part that is detachable and movable so that the range can be separated as a parallel part, and the two moving air paths that have the same shape and the same size as the moving parallel part at both ends and intersect in the middle A moving intersection fixed at a symmetrical position with respect to the moving parallel portion of the portion, and switching control means for switching between the parallel portion and the crossing portion of the moving portion, and supplying air by switching the parallel portion and the crossing portion. A supply / exhaust path for simultaneous intake / exhaust ventilation system equipment that exchanges the airflow between the outdoor opening and the exhaust outdoor opening. 5. The switching control means includes a timed opening / closing control section and a switching control section, and the switching control section is operated at predetermined time intervals by an output signal from the timed opening / closing control section.
Or the supply and exhaust path of the simultaneous intake and exhaust ventilation system equipment according to 4. 6. The switching control means includes a supply air flow state detection unit and a switching control unit, and the switching control unit operates based on an output signal from the supply air flow state detection unit. Supply and exhaust path of the simultaneous intake and exhaust ventilation system equipment described.