JP2003269781A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure a constant ventilation neither affected by the types, the length, and the lay-out of a duct nor affected by a gust of wind of a typhoon, etc., in ventilating a plurality of rooms. <P>SOLUTION: A body 1 is provided with a first blower 4 comprising a first blowing fan 2 and a first motor 3. The body is also provided with an exhaust duct connecting port 13, a first air intake duct connecting port 23, and a second air intake connecting port 33 in its side and a decorative panel 9 having an intake port 8 in its lower surface and ventilates air by the first blower. The body is also provided with a pressure sensor 50 for measuring a dust pressure loss and a control part 8 controlling the ventilation capacity adjacent to the exhaust duct connecting port. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having at least one intake port communicating with at least one living room, an exhaust port, and at least one blower.

[0002]

2. Description of the Related Art Conventionally, this type of air conditioner is provided with a plurality of intake ports on the side surface of the main body, and, for example, by ventilating the air in a plurality of rooms such as a bathroom, a washroom, and a toilet, the bathroom or washroom is It is known to have a so-called ventilation operation that exhausts humidity inside the facility, odor and humidity inside the toilet to the outside.

[0003]

However, in the above-mentioned conventional one, in the case of a structure in which a plurality of living rooms such as a bathroom, a washroom, and a toilet are ventilated simultaneously by a blower, the internal structure is changed depending on the type of duct to the main body. There is a problem that the friction loss changes, the pressure loss value changes depending on the length of the duct, the number of times the duct is bent, and the external wind, and the air volume required by the designer of the living room may not be sufficient.

The present invention has been made to solve the above problems, and an object of the present invention is to ventilate a plurality of rooms, focusing on general ventilation of the whole living room, in any piping condition, in any environment. Ventilation can be done constantly, even when
An object of the present invention is to provide an air conditioner capable of reducing the noise of the blower and extending the life of the blower from the viewpoint of not performing ventilation more than necessary.

[0005]

In order to achieve the above object, in the present invention, at least one blower and at least one air intake for one or more living rooms are provided.
In an air conditioner equipped with at least one intake port, an exhaust port for exhausting to the outside air, and a control unit that controls a blower, etc., install at least one or more in the intake port, intake path, main body and exhaust path It is characterized in that it has a fixed pressure measuring device and is capable of constant control of the exhaust air volume.

Therefore, by configuring in this way,
For example, a pressure measuring device installed in at least one of the intake port, the intake path, the main body, and the exhaust path measures the pressure in the duct, etc., and the blower is controlled by the control unit according to the duct path pressure loss. By controlling, the required ventilation air volume can be constantly ventilated.

Further, if the main body of the air conditioner is provided with a heat source, heating and drying of clothes can be performed.

Furthermore, if the motor of the blower is a DC motor, the output efficiency is good and energy saving ventilation is possible.
Moreover, the air volume can be easily adjusted.

Further, in the pressure measuring device, if the exhaust duct connecting port for communicating with the main body and communicating with the outside air is provided, the pressure loss of the exhaust duct can be measured more reliably,
Further, it is possible to perform more accurate constant ventilation.

Further, in the constant control of the exhaust air volume, if the air volume is changed by the rotation speed of the blower, the ventilation air volume can be controlled by the command of the control unit, so that the main body can be designed compactly.

Further, in the constant control of the exhaust air volume, if the ventilation volume is made constant by changing the opening area of at least one intake port or the intake path, the ventilation volume of the living room provided with the intake port can be individually adjusted. Because it can be controlled, only a specific room,
The ventilation volume can be increased or decreased depending on the season.

Further, in the constant control of the exhaust air volume, if the ventilation volume is made constant by varying the opening area of the exhaust port or the exhaust passage, the constant ventilation can be achieved without changing the rotation of the blower motor. Since the air conditioner can be held, the noise caused by the blower is less uneven, and ventilation can be performed using an inexpensive AC motor.

Further, in the constant control of the exhaust air volume, the ventilation capacity of the blower is stored in advance in a control board or the like, so that an appropriate number of rotations of the blower is controlled according to the pressure value read from the pressure sensor. It will be possible.

Further, assuming that the ventilation capacity is a relationship between the motor rotation speed of the blower, the static pressure value and the air volume, the blower is controlled appropriately according to the pressure loss value read from the pressure sensor. Since it can be performed more finely, it is possible to provide an air conditioner that is energy-saving and has low noise.

Further, the constant control of the exhaust air volume is performed by measuring the pressure loss of the piping path at least at the time of ventilation start to secure a constant air volume, so that the condition of the installation and deterioration of the duct due to aged deterioration due to clogging of the filter and the like. Although the pressure loss may change, a constant ventilation air volume can be more reliably ensured by measuring the pressure loss in the piping path when starting ventilation.

Further, in the constant control of the exhaust air volume, the pressure loss of the exhaust gas is suddenly changed when a gust of wind such as a typhoon occurs by measuring the pressure loss of the pipe path at regular intervals to ensure a constant air volume. Can also ensure a certain ventilation.

Further, since at least one ventilation amount measuring device is provided at the intake port and the exhaust port of the air conditioner, feedback control of constant air volume control becomes possible, and more accurate constant ventilation control can be performed. it can.

Further, the air conditioner displays on the operation panel such that the intake air amount or the exhaust air amount of at least one room is visible to the user, so that the air flow in the entire living room, which is originally difficult to understand, Since it can be easily grasped by the user, it becomes possible to understand problems such as opening and closing the door and undercut under the door of the living room, which is the passage of air, when the carpet etc. is spread on the floor the air flow stagnates. , More reliable constant ventilation is possible and maintenance is easier.

Further, in the constant control of the exhaust air volume, when the intake air volume of the other chamber becomes small or large, the air volume can be increased or decreased according to the increase / decrease of the intake air volume, so that the constant air volume can be secured.

Further, since the air inlet of the air conditioner is provided with at least one second blower, the range of ventilation air volume that can be provided can be widened.

Further, in the air conditioner, when the intake air volume of the other room becomes small or large, the air volume of the second blower is increased or decreased according to the increase / decrease of the intake air volume, so that a constant air volume ventilation can be easily secured. You can

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an installation example of an air conditioner according to one embodiment of the present invention, and FIG. 2 is a sectional view showing an example of the air conditioner according to one embodiment of the present invention. 3 is a plan view showing an embodiment of the air conditioner of the present invention.
FIG. 4 is a cross-sectional view of the intake path of the air conditioner according to the embodiment of the present invention. FIG. 5 is a cross-sectional view of the intake path of the air conditioner according to the embodiment of the present invention. FIG. 6 is a chart of the air conditioner according to the embodiment of the present invention. FIG. 7 is a chart of the air conditioner according to the embodiment of the present invention.

As shown in FIGS. 1 and 2, the air conditioner is installed behind the ceiling 12 of the bathroom A, for example.
The first intake duct connection port 23 provided on the side surface of the same communicates with the first intake duct 21 and also communicates with the first intake port 22 of the dressing room B mainly installed on the ceiling. Further, the second intake duct connection port 33 provided on the side surface of the apparatus body 1 communicates with the second intake duct 31 and communicates with the second intake port 32 of the toilet C, which is mainly installed on the ceiling. . In the main body 1,
A first blower 4 including a first fan 2 and a first motor 3 is provided, and air is taken in from each of the first intake port 22 and the second intake port 32, and the decorative panel 9 on the lower surface of the main body 1 is provided.
From the exhaust port 60 provided on the wall surface of the living room through the exhaust duct 20 communicating with the exhaust duct connecting port 13 via the exhaust duct connecting port 13 provided on the side surface of the main body 1. Can exhaust to the outside air.

The wall surface of the living room is provided with an outside air suction port 52 (the number of which is set as required), and the outside air is sucked into the living room and exhausted to the outside like a wind flow 100 in FIG. It

Further, in FIG. 1, the exhaust duct connection port 1
A third pressure sensor 50 is provided in the unit 3, and is connected to the control unit by a signal line (not shown).

Further, in FIG. 3, the first intake connection port 23
Is equipped with a second pressure sensor 51, and the second intake duct connection port 33 is equipped with a third pressure sensor 52, each of which is connected to the control unit 8 by a signal line.

In FIG. 2, a second blower 7 including a second fan 5 and a second motor 6 for sucking in and exhausting the air in the bathroom A is provided, and a heat source is provided in the vicinity of the decorative panel 9 just before the air outlet 11. 10 is provided.

Further, in FIG. 4, an opening / closing plate 61 is provided in the intake passage section 60. By moving (closing) the opening / closing plate 61, the intake opening area S1 becomes the intake opening area S2 as shown in FIG. 5, and becomes smaller.

The operation of the air conditioner having the above structure will be described in detail below. When the ventilation switch (not shown) of the remote controller 99 provided in the proper place in the washroom B is turned on, the first blower 4 is driven and the first blower fan 2 drives the bathroom A, the washroom B, and the toilet C. The air inside the first intake duct connection port 2 from the intake port 8 opened in the decorative panel 9 and the first toilet intake port 22 for the toilet via the first intake duct 21.
Similarly, the second intake duct connection port 3 is also sucked from the toilet second intake port 32 through the second intake duct 21.
3 is sucked in, and is exhausted to the outside through the exhaust connection port 23, the exhaust duct 20, and the exhaust port 61. At this time, the exhaust duct connection port 23 is equipped with a first pressure sensor, and the pressure loss during exhaust can be measured.
As a result, the control unit 8 connected to the first pressure sensor 50
Thus, by operating the first blower 4 so that a constant air volume can be obtained, the blower can be controlled by the control unit in accordance with the duct path pressure loss, and the required ventilation air volume can be constantly ventilated. it can.

Further, since the main body 1 is provided with the heat source 10 and the second blower 7, for example, the bathroom can be heated and dried.

Further, DC is applied to the first motor 3 of the first blower 4.
By adopting a motor, the output efficiency is good, energy-saving ventilation is possible, and various rotational speed controls can be performed, so that various air volumes can be easily set.

Further, the control unit 8 controls the number of revolutions of the operation instruction to the first blower 4, so that a relay or the like becomes unnecessary and the main body can be designed compactly.

Further, as for the constant control of the exhaust air volume, it is possible to use an opening / closing plate as shown in FIGS. At this time, the opening / closing plate may be manually operated, or may be automatically performed by using an electric motor (not shown). This makes it possible to control the ventilation volume individually, so
The ventilation volume can be increased or decreased depending on the season.

Similarly, an opening / closing plate may be provided in the exhaust path. As a result, constant ventilation can be maintained without changing the rotation of the motor of the blower, so that it is possible to perform ventilation with less noise caused by the blower.

The ventilation capacity of the first blower is controlled by the control unit 8 in advance.
In accordance with the pressure loss of the exhaust duct measured by the first pressure sensor 50, for example, as shown in the chart of FIG. 6, the exhaust pressure loss (rotation speed: 1000 rpm (small air volume)) After measuring the pressure loss), the rotation speed is 2000 rpm
Ventilate with an appropriate ventilation volume at (Large air volume). As a result, it becomes possible to control the appropriate rotation speed of the blower according to the pressure value read from the pressure sensor. .

Further, if the rotation speed and the air volume of the first blower 4 of the control unit 8 and the ventilation capacity of the static pressure value are stored in advance, appropriate control of the blower can be performed according to the pressure loss value read from the pressure sensor. Since it can be performed more finely, it is possible to provide an air conditioner that is energy-saving and has low noise.

Furthermore, if the pressure loss in the piping path is measured when the ventilation button is turned on, the duct pressure loss will be more reliably kept constant in response to changes in the initial conditions at the time of installation and due to aging deterioration due to clogging of filters, etc. The ventilation air volume can be secured.

Further, by measuring the pressure loss in the piping path at regular intervals, it is possible to secure a certain level of ventilation even when the exhaust pressure loss changes suddenly, such as when a typhoon or other gust of wind or a high-rise apartment wind rises. It will be possible.

Further, if at least one ventilation amount measuring device is provided at the intake port and the exhaust port of the main body 1, feedback control of constant air volume control becomes possible, and more accurate constant ventilation control becomes possible. Become.

An operation panel (remote controller 99, etc.)
In addition, by displaying the flow of air so that the intake amount or the exhaust amount of at least one room can be understood by the user,
Since the user can easily grasp the air flow in the whole room, which is difficult to understand, the doors can be opened and closed, and the undercuts under the doors of the room, which are air passageways, are covered with carpets on the floor. The occurrence of a trouble event such as stagnant air flow can be easily recognized by the user, which allows more reliable constant ventilation and simplifies maintenance.

If a third blower (not shown) is installed in the intake path in addition to the first blower 4 of the main body, when the intake volume of another room becomes small or large, the increase / decrease will be added. Accordingly, by increasing / decreasing the air volume, a constant air volume can be secured, and by increasing / decreasing the air volume of the third blower, the range of securing the constant air volume ventilation is increased, and the constant air volume control can be easily performed.

By performing the constant air volume ventilation as described above, it is not necessary to ventilate more than necessary, and the load on the blower and the entire device can be reduced, so that the life of the blower and the entire device can be extended. Saves money.

[Brief description of drawings]

FIG. 1 is a perspective view showing an installation example of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an example of an air conditioner according to an embodiment of the present invention.

FIG. 3 is a plan view showing an embodiment of the air conditioner of the present invention.

FIG. 4 is a cross-sectional view of the intake path of the air conditioner according to the embodiment of the present invention.

FIG. 5 is a cross-sectional view of the intake path of the air conditioner according to the embodiment of the present invention.

FIG. 6 is a chart of an air conditioner according to an embodiment of the present invention.

FIG. 7 is a chart diagram of an air conditioner according to an embodiment of the present invention.

[Explanation of symbols]

A ... Bathroom B ... toilet C ... toilet 1 ... Main body 2 ... 1st fan 3 ... 1st motor 4 ... 1st blower 9 ... Makeup panel 11 ... Makeup panel 13 ... Exhaust duct connection port

Claims (16)

[Claims] 1. A main body having at least one blower, at least one intake port for inhaling one or more living rooms, an exhaust port for exhausting to the outside air, and a control unit for controlling the blower and the like. In the air conditioner provided, at least one of the intake port, the main body, and the exhaust port is provided with a pressure measuring device, and the exhaust air volume is constantly controlled by a value measured by the pressure measuring device. Air conditioning system to. 2. The air conditioner according to claim 1, wherein the main body is provided with a heat source. 3. The air conditioner according to claim 1, wherein the motor driving the blower is a DC motor. 4. The air conditioner according to claim 1, wherein the pressure measuring device is arranged at an exhaust duct connecting port for communicating with the main body and communicating with the outside air. 5. The exhaust air volume is controlled to be constant by changing the rotation speed of the blower.
To 4 air conditioners. 6. The air conditioner according to claim 1, wherein the exhaust air volume is controlled to be constant by varying the opening area of at least one of the intake port or the intake path. 7. The air conditioner according to claim 1, wherein the exhaust air volume is controlled to be constant by varying the opening area of the exhaust port or the exhaust passage. 8. The air conditioner according to claim 1, wherein the ventilation capacity of the blower is stored in advance in a control board or the like to control the exhaust air volume constantly. 9. The air conditioner according to claim 8, wherein the ventilation capacity is a relationship among a motor speed of the blower, a static pressure value, and an air volume. 10. The air conditioner according to claim 1, wherein the constant control of the exhaust air volume secures a constant air volume by measuring the pressure loss in the piping path at least at the start of ventilation. 11. The air conditioner according to claim 1, wherein in the constant control of the exhaust air volume, a constant air volume is ensured by measuring a pressure loss in a pipe path at regular intervals. 12. The air conditioner according to claim 1, wherein at least one of the intake port and the exhaust port of the air conditioner is provided with a ventilation amount measuring device. 13. The air conditioner according to claim 1, wherein the air conditioner is displayed on an operation panel so that an intake air amount or an exhaust air amount of at least one room is visible to a user. 14. The constant control of the exhaust air volume is such that, when the intake volume of the other chamber becomes small or large, the air volume increases or decreases according to the increase or decrease.
3 air conditioners. 15. The air conditioner according to claim 1, wherein at least one second blower is provided at the intake port of the air conditioner. 16. The air conditioner according to claim 15, wherein when the intake air amount of the other room becomes small or large, the air amount of the second blower increases or decreases according to the increase or decrease.
Air conditioner.