JP4710286B2 - Ventilation device and ventilation system - Google Patents

Description

  The present invention relates to a ventilator for ventilating a room, and more particularly, a ventilator and a ventilating system having a collective function or a distribution function capable of sending air from or to a plurality of rooms during ventilation. About.

Some conventional ventilator, collective ventilation apparatus having a set function or distribution function capable of sending air is known for or more rooms from multiple rooms during ventilation. This collective ventilation device is generally called an intermediate duct fan, and has at least one of an air supply fan or an exhaust fan inside the housing, and is provided on the upstream side or downstream side for sending the air in the housing. The first duct is connected, and the second duct is connected to the downstream or upstream side opposite to these ducts. Either the first duct or the second duct is composed of a plurality of ducts, and in the case of having an exhaust function, a plurality of branch-side exhaust ducts leading to a plurality of rooms are connected to one of the casings. The other side of the housing is connected to a common exhaust duct leading to the outside of the building (see, for example, Patent Document 1).

  However, in a conventional ventilation device such as an intermediate duct fan, the intermediate duct fan itself is installed on the back of the ceiling, but the space on the back of the ceiling is usually only about the thickness of the apparatus main body. For this reason, space for work and inspection is limited, and when performing maintenance work on ventilation equipment, open the inspection door from the inspection opening provided on the ceiling and work from the indoor side toward the ceiling surface Maintenance of individual parts such as fans and motors has not been easy. Especially in apartment houses, the space behind the ceiling is often narrow, and in the case of intermediate duct fans and other ventilation devices, the inspection port is also small, so it is very easy to remove fan motors, filters, etc., or replace ducts etc. There was a problem of being troublesome.

  The present invention has been made paying attention to such a problem, and an object thereof is to provide a ventilation device and a ventilation system that can be easily maintained.

In the first ventilator of the present invention, a fan motor and a motor substrate are attached to the upper wall of the fan case to form a fan unit, and this fan unit is provided on the bottom wall of the main housing. It is a ventilator that is removable from the inside to the opening,
A power supply side board is attached to the upper part of the inner surface of the side wall of the main housing, and a wiring part is connected to the power supply side board and the motor board,
Both ends of a resin member that binds the wiring portion to the inner surface of the side wall are attached to the upper wall of the fan case and the upper wall of the main housing. The wiring portion is formed so as to be vertically bent so that the wiring portion is accommodated in a space between the upper wall of the fan case and the inner surface of the upper wall of the main housing when the unit is accommodated. .

A ventilation system according to claim 2 of the present application is a ventilation system that uses the ventilation device according to claim 1 and includes air supply means for supplying outside air or room air and exhaust means for exhausting room air. The ventilation system includes a 24-hour ventilation operation function that performs continuous ventilation continuously or intermittently, and when the 24-hour ventilation operation is being executed, the exhaust air volume of the exhaust means in a predetermined operation state. And a control means for controlling the air volume of the ventilation means to be lower than the air volume at the time of increase when the predetermined operation state is released.

A ventilating system according to claim 3 of the present application is a ventilating system using the ventilator according to claim 1 and comprising air supply means for supplying outside air or indoor air and exhaust means for exhausting indoor air. The ventilation system includes a 24-hour ventilation operation function that performs continuous ventilation continuously or intermittently, and when the 24-hour ventilation operation is being executed, the exhaust air volume of the exhaust means in a predetermined operation state. And a control means for controlling to increase the air supply amount of the air supply means.

  According to the first ventilator of the present invention, the fan motor of the ventilator and the motor board are attached to the fan case to form a fan unit, and this fan unit is removable from the main housing. Maintenance of the fan unit such as replacement of the fan, fan motor or board is easy.

Furthermore, according to the first ventilator of the present invention, when the fan unit is remounted on the main housing, the wiring portion is guided to an appropriate bending posture, and the wiring portion is an unexpected part between the fan unit and the main housing. It is prevented that it is pinched by.

According to the second ventilation system of the present invention, when at least one of the air supply device and the exhaust device is ventilated for 24 hours, the exhaust air volume of the exhaust means is increased in a predetermined operation state, With the release of the predetermined operating state, the air flow of the ventilation means is controlled to be lower than the air volume at the time of increase. Therefore, when forced ventilation is necessary, the air volume is automatically increased to improve the ventilation efficiency. When the need for forced ventilation is eliminated, comfort is improved because the system automatically returns to ventilation for 24 hours.

According to the third ventilation system of the present invention, when at least one of the air supply device and the exhaust device is ventilated for 24 hours, the exhaust air volume of the exhaust means is increased in a predetermined operation state. Since the air supply amount of the air supply means is increased, when the forced ventilation is necessary, the air volume is automatically increased to increase the ventilation efficiency. Because it returns to time ventilation, comfort is improved.

  The predetermined operation state is, for example, when the forced ventilation button of the remote controller of the ventilator, or the odor sensor, the switch of the bathroom ventilator, the toilet switch or the bathroom lighting switch is turned on. In this case, when the exhaust air volume of the ventilator increases and any of the forced ventilation button of the remote controller, the odor sensor, the switch of the bathroom ventilator, the toilet or the bathroom lighting switch returns to OFF, the normal 24 The exhaust air volume of time ventilation will automatically return and the comfort will be improved.

  Hereinafter, a ventilation device and a ventilation system according to embodiments of the present invention will be described with reference to the drawings. FIG. 10 shows an installation example in a divided building such as a condominium.

  This ventilation system is forcibly introduced by an intermediate duct fan 2 of an air supply system as a collective ventilator for supplying outside air from an air supply opening 1 at the upper part of the entrance, and then introduced into the room from an air supply grill 3 in each room. The ventilation system includes an air supply system 5 that supplies air and an exhaust system 11 that sucks indoor air supplied into the room by the bathroom ventilation device 6 and exhausts the air from the exhaust port 10 to the outside. The bathroom ventilator 6 is configured by an intermediate duct fan for exhaust that sucks and exhausts indoor air. The intermediate duct fan for exhaust may be a ventilator for ventilating a living room, and is not limited to a bathroom ventilator.

The air supply intermediate duct fan 2 is installed on the ceiling 12 in the hallway as shown in FIG. An inspection opening 13 is formed in the ceiling 12, and the intermediate duct fan 2 is installed on the inspection opening 13. The intermediate duct fan 2 is fixed to a structural wall 14 on the ceiling of the building by a mounting bracket 15 and a fixing bolt 16. The inspection opening 13 can be opened and closed by a decorative plate 17, and as shown in FIGS. 11 and 12, by opening the decorative plate 17, inspection work using a screwdriver or the like can be performed from the inspection opening 13. The shape of the inspection opening 13 is set. The size of the inspection opening 13 is set to a size that allows a later-described fan case unit 18 (fan unit) of the intermediate duct fan 2 and the filters 19 and 20 to pass therethrough. As shown in FIG. 9, the intermediate duct fan 2 is connected to an outside air introduction duct 21 for introducing outside air and an air supply duct 22 for supplying the introduced outside air into a predetermined room.

  FIG. 1 is an exploded perspective view of the intermediate duct fan 2. The intermediate duct fan 2 includes a housing case 23 serving as a main housing, the fan case unit 18 described above, and a chamber 24. The housing case 23 is formed with an outside air inlet 25A (see FIG. 7) to which a duct joint 25 for introducing outside air is connected, an air supply opening 26, and a power supply mounting hole 27. A terminal block 28 is attached inside the housing case 23, and a rotary switch 28A for air volume adjustment is provided on the terminal block 28. The terminal block connector portion 29 is attached to the power supply attachment hole 27. A lamp wire 31 (see FIG. 11) is connected to the terminal block connector portion 29. Ceiling mounts 30 </ b> A and 30 </ b> B fixed to the mounting bracket 15 are attached to the housing case 23. A ceiling mount 30B is attached to the side wall having the duct joint 25, and the ceiling mount 30A is attached to the ceiling mount 30B.

  A dust filter 19 and a Nox filter 20 shown in FIG. 1 are disposed inside the housing case 23 on the outside air inlet side. Filter guides 32 for holding the dust filter 19 and the Nox filter 20 are respectively attached to the left and right inner walls of the housing case 23, and the dust filter 19 and the Nox filter 20 are disposed between two grooves of the pair of filter guides 32. Is held removable (replaceable).

  A chamber 24 serving as an air chamber is screwed to the surface of the housing case 23 opposite to the duct joint 25. As shown in FIG. 6, duct joints 33 for supplying outside air to each room of the building are attached to the side wall of the chamber 24, and these duct joints 33 are connected to the chamber through openings (not shown). It communicates with 24 internal spaces.

  FIG. 2 is an exploded perspective view of the fan case unit 18. As shown in FIG. 2, the fan case unit 18 includes a fan case 40, a suction port plate 41, a fan motor 42, a centrifugal fan 43, and a motor drive board 44. In FIG. 2, the cylinder part 40A of the fan case 40 is formed in a spiral cross-sectional shape, and the lower part of the cylinder part 40A is open. The lower end portion of the cylindrical portion 40 </ b> A of the fan case 40 is closed by the suction port plate 41. As shown in FIG. 8, the suction port plate 41 is formed with an opening 45 for sucking air into the fan case 40. When the suction port plate 41 is attached to the lower part of the fan case 40, a blow-out port 46 for sucked outside air is formed (see FIG. 1). The position and shape of the air outlet 46 correspond to the position and shape of the air supply opening 26 of the housing case 23.

A motor mounting frame portion 47, a substrate storage frame portion 48, and a storage frame portion 50 of a plastic plate 49 that is a resin member are formed on the upper wall of the fan case 40. The motor mounting frame 47, the fan motor 42 is mounted, to insert the screws at the four corners of the hole h of the motor fixing bracket 51, screwed inserted screws into screw holes 47A formed in the motor mounting frame 47 side by, fan motor 42 is fixed to the motor mounting frame 47.

The fan motor 42 is an AC motor and is driven by power supply control of the motor drive board 44. A lead wire 52 extending toward the fan motor 42 and a lead wire 53 extending toward the plastic plate 49 are connected from the motor drive board 44. A plurality of lead wires 53 extending toward the plastic plate 49 are bound to the plastic plate 49 by belt-like fasteners 53F (see FIG. 13). A plurality of pairs of holes 49A (see FIG. 2) through which the fasteners 53F are passed are opened in the plastic plate 49, and the plurality of lead wires and the plastic plate 49 are integrally fixed to the through holes 49A through the fasteners 53F. The plastic plate 49 is a thin plate formed of, for example, a resin such as PET, and is attached to the fan case 40 so as to be bent in the vertical direction. The plastic plate 49 is bent into a substantially “U” shape in this way, whereby the storage position and the storage posture of the lead wire 53 are corrected.

  For example, in the case of maintenance, the decorative plate 17 is removed from the inspection opening 13 and the drain pan 54 is removed from the housing case 23 as shown in FIG. When the fan case 40 is removed from the housing case 23, the plastic plate 49 and the lead wire 53 extend together, and the fan case unit 18 can be easily maintained. When the fan case 40 is attached to the housing case 23 after maintenance, as shown in FIG. 11, the lead wire 53 is connected to the fan case 40 and the housing case 23 even when the storage position of the lead wire 53 is not visible from the inspection opening 13. There is no danger of being fixed while being sandwiched in an unexpected position.

  As shown in FIG. 8, flanges 55 for forming a space for sucking air between the suction port plate 41 and the drain pan 54 are formed on the left and right sides of the symmetrical center line of the suction port plate 41. ing. The flange 55 is formed with a thread groove 55 </ b> A (locked portion) for fixing to the edge 23 </ b> A of the housing case 23. The screw groove 55A is formed so as to extend in the longitudinal direction of the flange 55. When the fan case 40 is attached to the edge portion 23A of the housing case 23, a screw 23B (locking portion) screwed to the edge portion 23A is attached. The head is hooked on the screw groove 55 </ b> A and is used for temporarily supporting the fan case 40 of the fan case unit 18. The fan case 40 is attached and fixed to the housing case 23 by tightening the screws 23B. The flange 55 is brought into contact with the edge 23 </ b> A of the housing case 23, and an outside air introduction space S (see FIG. 11) is formed between the suction port plate 41 and the drain pan 54.

  The drain pan 54 has an opening 60 and a lid 56 that closes the opening 60. The drain pan 54 and the lid portion 56 are inclined in a valley shape at the center, and the valley portion 54A is inclined so that the opening 60 side is high and the drain pipe 57 side is low. Protrusions 56A (see FIG. 3) are formed on both sides of the lid portion 56 so as to be hooked to the edge of the opening portion 60. The protrusions 56A are hooked on the inner side of the opening portion 60, and are shown in FIG. As described above, one end of the lid portion 56 is hooked, and the other end of the lid portion 56 is fixed to the frame portion 59 by a screw 58.

  Further, the drain pan 54 itself is fitted and attached to the outer peripheral portion of the lower end portion of the housing case 23, and is detachably attached to the lower end portion of the housing case 23 by screws (not shown). The drain pipe 57 of the drain pan 54 is connected to a drain pipe (not shown) connected to the drain outlet of the bathroom. The drain pan 54, when supplying the outside air into the room in winter, etc., receives moisture that dries and accumulates when the air with high humidity comes into contact with a cold wall surface and the like. Drain to etc.

  In this embodiment, the chamber 24 provided with the plurality of duct joints 33 is attached to the housing case 23. However, the single chamber 24 may be attached to the duct joint 33, and the chamber 24 may be attached. Alternatively, a duct joint may be attached to the air supply opening 26 of the housing case 23.

  The fan motor 42 of the fan case unit 18 is controlled by a motor drive board 44, but is linked to the bathroom ventilation device 6 of the exhaust system 11 (see FIG. 10) that exhausts indoor air. In this ventilation system, the intermediate duct fan 2 for supplying air and the bathroom ventilation device 6 for exhaust are controlled so as to be linked by communication means.

  The bathroom ventilator 6 is constituted by an intermediate duct fan for exhaust, and constitutes an exhaust system 11 together with an exhaust duct 11A. FIG. 14 schematically shows the configuration of the bathroom ventilation device 6. Duct joints 62 to 65 are attached to side surfaces of a rectangular box-shaped housing case 61. Openings 62 </ b> A, 63 </ b> A, and 64 </ b> A that allow air to pass through are formed on the side surface of the housing case 61 where the duct joints 62 to 65 are attached. A duct 11 </ b> A of the exhaust system 11 is connected to the duct joint 62. A duct 66 connected to the toilet exhaust grille is attached to the duct joint 63, a duct 67 connected to the toilet exhaust grille is attached to the duct joint 64, and a duct joint 65 is connected to the bathroom exhaust grille. A duct 68 is attached.

  As shown in FIG. 15, a fan case unit is attached inside the housing case 61. The fan case unit includes a housing 69, a fan case 70, a centrifugal fan 71, a fan motor 72, and a control circuit unit 73. The fan case 70, the centrifugal fan 71, the fan motor 72, and the control circuit unit 73 are fixed to a housing 69 formed so as to incorporate them. The housing 69 is similar to the suction port plate 41 in FIG. It is mounted on the mouth plate 74.

  The suction port plate 74 has a suction port 75 for sucking air in the housing case 61. A flange 76 similar to the flange 55 of the suction port plate 41 is formed at the edge of the suction port plate 74, and a screw groove (not shown) for fixing to the edge of the housing case 61 is formed in the flange 76. Part) is formed. This screw groove is formed so as to extend in the longitudinal direction of the flange 76 in the same manner as the screw groove 55A of FIG. 8, and when the housing 69 is attached to the housing case 61, the head of the screw 77 (locking portion) is attached. The fan case unit is temporarily supported by being hooked on the screw groove. Thereafter, the fan case unit is attached and fixed to the housing case 61 by tightening the screws 77.

  A portion inside the housing case 61 other than the fan case unit is a suction space 78 for sucking indoor air from other rooms. Room air from the toilet, washroom, or bathroom is sucked into the suction space 78, sucked by the centrifugal fan 71 inside the fan case 70, and exhausted to the duct 11 </ b> A of the exhaust system 11. A drain pan 79 is attached to the lower part of the housing case 61. Since the configuration of the drain pan 79 is the same as that of the drain pan 54 described above, the description thereof is cited.

  The housing case 61 is installed above the inspection port of the bathroom ceiling, and a mounting bracket 61A protruding outside the housing case 61 is supported by anchor bolts (not shown) fixed to the ceiling partition wall. The fan case unit of the housing case 61 can be maintained by removing the lid of the inspection opening on the bathroom ceiling.

  The interlocking relationship between the bathroom ventilator 6 and the intermediate duct fan 2 is that when the bathroom ventilator 6 is turned on, the fan motor 42 of the fan case unit 18 is turned on, and when the bathroom ventilator 6 is turned off, the fan of the fan case unit 18 is turned on. The motor 42 is turned off. When the bathroom ventilator 6 is operated for 24 hours, the fan motor 42 of the fan case unit 18 is turned on so as to ventilate a ventilation amount equivalent to half of the building volume per hour. It is turned on so that the ventilation amount becomes a predetermined ventilation frequency (for example, 0.5 times / hour) of the volume of the ventilation target area of the building.

When the bathroom ventilator 6 and the intermediate duct fan 2 operate in conjunction with each other, the bathroom ventilator 6 operates to exhaust air from the exhaust system 11. Accordingly, the air supply system 5 introduces air outside the building into the building, and the bathroom ventilator 6 sucks indoor air and exhausts it outside. The room air in each room is sucked into the bathroom ventilator 6 through the undercuts of the doors of the rooms and the bathroom galleries and exhausted from the exhaust system 11.

  The bathroom ventilation device 6 is capable of strong ventilation with a large air volume. The strong ventilation with a large air volume of the bathroom ventilator 6 is either (1) providing a remote controller (not shown) of the bathroom ventilator 6 itself with a strong ventilation switch for increasing the exhaust amount, or (2) providing at the entrance of the bathroom. By installing a strong ventilation switch that increases the fan speed in the bathroom ventilation switch installed, or (3) Increasing the fan rotation speed in the toilet ventilation switch or closing the shutter of the bathroom inlet This can be done by providing a strong ventilation switch that increases the amount of toilet exhaust. That is, these strong ventilation switches are connected to the microprocessor of the control device of the bathroom ventilation device 6, and when any of these strong ventilation switches is turned ON, the strong ventilation operation of the bathroom ventilation device 6 is performed. Thereby, the bathroom ventilation apparatus 6 can perform strong ventilation operation. On the other hand, when any of these strong ventilation switches is turned off, the bathroom ventilation device 6 stops the strong ventilation operation, enters the 24-hour ventilation mode, and starts the 24-hour ventilation operation.

  When the bathroom ventilator 6 for exhaust is operated with a larger air volume (for example, during forced ventilation operation) than when it is ventilated for 24 hours, the selection button ON / OFF of the bathroom ventilator 6 at this time or a fan motor It is also possible to control the rotational speed of the fan motor 42 based on the rotational speed or the increase / decrease of voltage / current.

  For example, when the suction port for the exhaust of the bathroom ventilator 6 is connected to the exhaust port of the toilet ceiling by a duct and a human body detection sensor (pyroelectric sensor) is installed on the ceiling of the toilet, the human body detection sensor When the human body is detected, the control mode can be set so as to increase the rotation speed of the fan motor of the bathroom ventilation device 6.

  Thus, when the air in the toilet is sucked from the ventilation opening of the toilet with a large air volume and exhausted outside the building, if the intermediate duct fan 2 is set so as to increase the air supply amount of the outside air, Exhaust volume is balanced, the room becomes excessively negative pressure, the door will not open, and wind noise will not occur.

As described above, according to the intermediate duct fan 2, the fan motor 42 and the motor drive board 44 (motor board) are attached to the fan case 40 to form the fan case unit 18, and the fan case unit 18 Is removable from the housing case 23 serving as the main housing, so that the maintenance of the fan case unit 18 such as replacement of the centrifugal fan 43, the fan motor 42, or the motor drive board 44 is easy.

  In particular, a lead wire 53 (wiring portion) that connects the motor substrate 44 and the terminal block 28 that is a power supply side substrate of the housing case 23 is bound, and the fan case unit 18 is attached to and detached from the housing case 23 to the lead wire 53. Since the plastic plate 49 (guide member) for guiding the lead wire 53 to an appropriate bending posture is provided, the lead wire 53 is brought to an appropriate bending posture when the fan case unit 18 is remounted on the housing case 23. As a result, the lead wire 53 is prevented from being caught between unexpected parts of the fan case unit 18 and the housing case 23. Moreover, the plastic plate 49 is easy to determine the direction in which it is easily bent, does not cost, and does not rust even if there is condensation.

  In addition, when at least one of the air supply device and the exhaust device is ventilated for 24 hours, the forced ventilation button of the remote controller of the intermediate duct fan 2 or the switch of the bathroom ventilation device 6, the toilet or the bathroom When one of the lighting switches is turned on, the exhaust air volume of the intermediate duct fan 2 increases, and the forced ventilation button of the remote controller, the switch of the bathroom ventilator 6, the toilet or bathroom lighting switch returns to OFF. If the exhaust air flow is restored to the original level, if the forced ventilation is necessary, the air flow is automatically increased to increase the ventilation efficiency. Since it returns to ventilation, the troublesome operation is eliminated and the comfort is improved.

The disassembled perspective view of the intermediate | middle duct fan concerning embodiment of this invention. The disassembled perspective view of the fan case unit of this invention. The bottom view of the intermediate | middle duct fan of FIG. FIG. 4 is a front view of the intermediate duct fan of FIG. 3. FIG. 4 is a rear view of the intermediate duct fan of FIG. 3. FIG. 4 is a left side view of the intermediate duct fan of FIG. 3. FIG. 4 is a right side view of the intermediate duct fan of FIG. 3. The top view of the suction inlet plate of a fan case unit. Sectional drawing of the state which attached the intermediate duct fan between the structural wall of the ceiling, and the suspended ceiling. The figure which shows an example of the ventilation system provided in the apartment. Sectional drawing at the time of the normal state of an intermediate | middle duct fan and a suspended ceiling. Sectional drawing which shows a mode when opening a decorative board and taking out a fan case. The top view of the state which tied the lead wire and the plastic board. The top view of the bathroom ventilation apparatus comprised with the intermediate | middle duct fan. Sectional drawing of the bathroom ventilation apparatus of FIG.

Explanation of symbols

2 Intermediate duct fan (ventilator)
5 Air Supply System 6 Bathroom Ventilator 11 Exhaust System 13 Inspection Opening 18 Fan Case Unit 23 Housing Case 24 Chamber 25 Supply Air Duct Joint 33 Supply Air Duct Joint 40 Fan Case 41 Suction Port Plate 42 Fan Motor 43 Centrifugal Fan 45 Suction port 49 Plastic plate (guide member)
53 Lead wire 54 Drain pan

Claims (3)

A fan motor and a motor board are attached to the upper wall of the fan case to form a fan unit, and this fan unit is removable from the opening provided in the bottom wall of the main housing. A ventilation device,
A power supply side board is attached to the upper part of the inner surface of the side wall of the main housing, and a wiring part is connected to the power supply side board and the motor board,
Both ends of a resin member that binds the wiring portion to the inner surface of the side wall are attached to the upper wall of the fan case and the upper wall of the main housing. The wiring portion is formed so as to be vertically bent so that the wiring portion is accommodated in a space between the upper wall of the fan case and the inner surface of the upper wall of the main housing when the unit is accommodated. Ventilation device. A ventilation system using the ventilation device according to claim 1, comprising a supply means for supplying outside air or indoor air, and an exhaust means for discharging indoor air,
  The ventilation system has a 24-hour ventilation operation function of performing continuous ventilation intermittently or intermittently, and increases the exhaust air volume of the exhaust means in a predetermined operation state when the 24-hour ventilation operation is being performed. A ventilation system comprising: control means for controlling the air volume of the ventilation means to be lower than the air volume at the time of increase when the predetermined operating state is released. A ventilation system using the ventilation device according to claim 1, comprising a supply means for supplying outside air or indoor air, and an exhaust means for discharging indoor air,
  The ventilation system has a 24-hour ventilation operation function of performing continuous ventilation intermittently or intermittently, and increases the exhaust air volume of the exhaust means in a predetermined operation state when the 24-hour ventilation operation is being performed. A ventilation system comprising control means for controlling the air supply amount of the air supply means to be increased.

Images