JPH03217729A - Ventilating air conditioning unit - Google Patents

Abstract

PURPOSE:To take in a large quantity of outside air while air conditioning when the room air is polluted by a method wherein an exhaust air passage is made to be a reversible air intake passage, and an exhaust fan is stopped, and the outside air is taken in from an outdoor exhaust port by inducing by a fan for air conditioning, and a communicating section with a second open/close damper is opened, and air conditioned air is blown out from an indoor diffuser into the room. CONSTITUTION:When the room air is polluted, and a large quantity of outside air alone is taken in while air conditioning, an exhaust fan 7 is stopped, a first open/close damper 14 is closed, a second open/close damper 27 is opened, and an open condition is given to a communicating section 26 which communicates with an outdoor exhaust port 12. The outside air flows in from an outside air intake port 11, and the outside air is taken in by an air intake passage 29 which reaches an air intake communicating port 23 by an air intake fan 6 through an air intake opening 22. By operation of a fan for air conditioning 4, the outside air flows in from the outdoor exhaust port 12, and a reversible air intake passage 31, by which the outside air is induced by the fan for air conditioning 4 from an exhaust air communicating port 25 through the communicating section 26, is formed. By the reversible air intake passage 31 and air intake passage 29, all the air is drawn from outside air, and the air passes through a heat exchanger 2, and air conditioned air is blown out from an indoor diffuser 13.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ventilation air conditioning unit having air conditioning and ventilation functions for apartment buildings and the like.

BACKGROUND OF THE INVENTION In recent years, ventilation and air conditioning units that are suspended in the ceiling have become the mainstream form of ventilation and air conditioning in housing complexes (condominiums, etc.).

Regarding the configuration of this type of conventional ventilation air conditioning unit, the fourth section
This will be explained with reference to the figures. As shown in the figure, a main body 61 of the ventilation air conditioning unit is installed in the ceiling 60 of an apartment complex by hanging bolts 62, and the main body 61 is equipped with an intake fan 53 and an exhaust fan 54. It is equipped with a blower 66 and a heat exchanger 66 that passes hot and cold water or refrigerant, and takes in outside air through a duct 67 drawn in from outside. The air is blown into each room through an indoor blow-off duct 58 that serves as a blow-out outlet into the room.

Although not shown, ducts for ventilation, such as outdoor exhaust ports for exhausting indoor air, and multiple ducts for branching conditioned air to each room are installed to improve ventilation. It was for air conditioning.

Note that 69 is an inspection port provided in the ceiling surface 6o.

Problems to be Solved by the Invention In such a conventional configuration, although there is a function of air conditioning while performing ventilation 3 using the air conditioning blower 56, the intake fan 7 63, and the exhaust fan 74, there is a problem that certain rooms are severely affected. If the room becomes dirty, it cannot be cleaned with normal ventilation, and you must either use the room as it is dirty or ventilate it by opening the window.Opening the window will significantly increase the air conditioning load. However, there were problems such as it took a long time to return to the original room temperature.

The present invention solves these problems by providing an air conditioning ventilation unit that performs ventilation while performing normal air conditioning, and when the room becomes extremely dirty, immediately introduces a large amount of outside air while conditioning it. The purpose is to provide

Means for Solving the Problem In order to solve this problem, the present invention provides a heat exchange chamber provided with a heat exchanger corresponding to the indoor air outlet communicating with the indoor air outlet on the top surface of the main body, and a heat exchange chamber that communicates with the indoor air outlet. and a blower room equipped with an air conditioning blower, a ventilation room connected with the blower room and equipped with an intake blower and an exhaust blower that can be operated independently, the heat exchange room and the blower room. and an air intake/exhaust passage section on the rear side of the main body, which corresponds to the ventilation room and is partitioned by a partition plate. an air conditioning flow path leading to a heat exchange room via a circulation opening provided with an opening/closing damper;
Air is taken in by the intake blower from the outside air intake port provided on the top surface, passes through one of the intake and exhaust passages, passes through the intake opening, and connects to the air intake flow path from the intake communication opening to the blower room, and from the circulation opening to the ventilation room. An exhaust flow path that passes through the exhaust communication port of the exhaust blower, passes through the airflow opening of the exhaust air blower, passes through the other side of the intake and exhaust path section, and reaches the outdoor exhaust port provided on the top surface, and opens into the ventilation room and the intake and exhaust path. A second opening/closing damper is provided, and a reversible intake flow path is drawn through the exhaust communication port by an air conditioning blower when the opening/closing damper is opened.

Function: With this configuration, the air conditioning flow path allows the air to be conditioned from the return suction port through the circulation opening with the first opening/closing damper opened, and then through the heat exchanger, and the outside air is conditioned by the intake blower through the intake flow path. The air is sent into the indoor air blower through the heat exchanger, and through the exhaust flow path, some of the air that has flowed into the circulation opening through the return inlet is exhausted from the indoor air through the outdoor exhaust air outlet by the exhaust air blower. In addition, when the indoor air is extremely dirty, the exhaust flow path is changed to a reversible intake flow path, the exhaust blower is stopped, and an air conditioning rock is used to attract the air. Open the communication part with the air outlet, pass through the exhaust opening to the air conditioning blower, blow the conditioned air through the heat exchanger into the room from the indoor air outlet, and introduce a large amount of outside air. Become.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3.

As shown in the figure, a main body 1 installed in a dead space etc. has a heat exchange chamber 3 having a heat exchanger 2 through which a medium passes,
A blower chamber 6 having an air conditioning blower 4 connected to the heat exchange chamber 3 through a discharge port of the blower; and an intake blower 6 connected to the blower chamber 5 and provided for air intake, each of which is operable independently. , a ventilation room 8 provided with an exhaust blower 7 used for exhaust, the heat exchange room 3 and the fan room 5, and an air intake/exhaust passage section 9 on the rear side of the main body of the ventilation room 8, and a top surface 10. On the right side of the top surface 10, there is an outdoor air intake port 11 that communicates with the outdoors and serves as an independent flow path, and on the left side of the top surface 10, there is also an outdoor air exhaust port 12 that serves as an independent flow path. A return suction port 13 that returns from the room and an indoor air outlet 13a that corresponds to the heat exchanger 2 and communicates with the room are also provided on the top surface 10. The blower chamber 6 is provided with a circulation opening 15 provided with a first opening/closing damper 14 so as to communicate with the return suction port 13 . On the other hand, the ventilation room 8 is provided with an intake blower 6 having a fan 17 attached to an independent motor 16, and an exhaust blower 7 having a fan 19 attached to an independent motor 18. It is set up. On the front side of the main body 1, there are such a heat exchange chamber 3, a blower chamber 5, and a ventilation chamber 8, and at the rear thereof, an intake/exhaust passage section 9 partitioned by the partition plate 21 is configured as described above. There is. Furthermore, the ventilation chamber 8 is provided with an intake opening 22 that communicates with the outside air intake port 11 and an intake communication port 23 that communicates with the blower chamber 6 side. On the other hand, on the exhaust blower 7 side, there is an exhaust opening 24 for exhausting normal indoor air,
An exhaust communication port 26 is provided to communicate between the ventilation room 8 and the blower room 6, and an outdoor exhaust port 12 is provided in the partition plate 21 to communicate between the ventilation room 8 and the intake/exhaust chamber section 9. The communication portion 26 is located at the same position as the flow path (dotted line in FIG. 2), and is opened and closed by a second opening/closing damper 27.

In the above configuration, when performing air conditioning and ventilation by normal intake and exhaust, the air conditioning blower 4, the intake blower 6, and the exhaust blower 7 are operated, and the second opening/closing damper 27 closes the communication part 26. , the first opening/closing damper 14 of the circulation opening 16 is open. As a result, indoor air flowing in from the return suction port 13 is transferred to the circulation opening 1.
6, an air conditioning flow path 28 is formed by the air conditioning blower 4, passing through the heat exchanger 2 and heading indoors from the indoor air outlet 13a. On the other hand, outside air flows in from the outside air intake port 11 provided on the top surface, passes through one side of the intake/exhaust passage 9, passes through the intake opening 22, passes through the intake blower 6, enters the air intake communication port 23, and reaches the blower room 6 for air conditioning. The blower 4 forms an intake flow path 29 shown by arrow A leading to the heat exchanger 2 . On the other hand, a part of the indoor air flows through the circulation opening 16 in the middle of the circulation passage 28 through the exhaust communication port 26, the exhaust blower 7 of the ventilation room 8, and the exhaust opening 24 into a part of the intake/exhaust passage 9. An exhaust flow path 3o shown by arrow B is formed, which flows vertically upward through the formed passageway and reaches the outdoor exhaust port 12. Air conditioning is performed while providing ventilation through the intake flow path 29 and exhaust flow path 3o.

Next, when the room is extremely dirty and only a large amount of outside air is taken in while the air conditioning is being performed, the independent exhaust blower 7 is stopped and the first opening/closing damper of the circulation opening 15 provided in the partition plate 21 is closed. Communication section 2 provided on the same partition plate 21
The second opening/closing damper No. 6 is open, and the communication portion 26 communicating with the outdoor exhaust port 12 is in an open state. As a result, outside air flows in from the outside air intake port 11, and the outside air flows into the intake opening 2.
Outside air is introduced through the intake flow path 29 leading to the intake communication port 23 by the intake blower 6 which is operated independently through the air conditioning blower 4, and outside air flows in through the external exhaust port 12 due to the operation of the air conditioning blower 4. The reversible intake flow path 3 is guided to the air conditioning blower 4 through the communication portion 26 and from the exhaust communication port 26.
1 (dotted arrow) is formed. All of the air is taken in from the outside air through the reversible intake flow path 31 and the intake flow path 29, and the air conditioned by the indoor air outlet 13 is blown out through the heat exchanger 2, making it possible to take in a large amount of outside air. It will become.

Effects of the Invention As is clear from the description of the above embodiments, the present invention has the following advantages:
A part of the indoor air is passed from the circulation opening through the exhaust communication port to the exhaust blower, and then from the exhaust opening to the outdoor exhaust port, and from the return intake port through the circulation opening equipped with an opening/closing damper to the air conditioning blower. When introducing a large amount of outside air, stop the exhaust blower and use the air conditioning blower to direct the air conditioning flow path from the outdoor exhaust port through a communication section equipped with an opening/closing damper to the exhaust opening. It has a structure with a reversible intake flow path leading to the air conditioning blower, so if a certain room is extremely dirty or if the room is very dirty due to smoking, a large amount of outside air can be brought in and passed through the heat exchanger. It is now possible to instantly replace the air with fresh air, and there is no need to open windows, which increases the air conditioning load as in the past. However, by concentrating the outside air intake, outdoor exhaust, return intake, indoor air outlet, etc. on the top side, it is easier to connect the ducts.
Moreover, maintenance becomes easy. Furthermore, it has the function of introducing a large amount of outside air by stopping the supply of medium to the heat exchanger and operating the air conditioning blower and intake blower, so it has the effect of cooling with outside air at night during the summer. We are able to provide ventilation and air conditioning units with

[Brief explanation of drawings]

Fig. 1 is a sectional view showing the configuration of a ventilation air conditioning unit according to an embodiment of the present invention, Fig. 2 is an internal structural diagram showing the configuration of the ventilation air conditioning unit, and Fig. 3 is a plan view of the top surface of the ventilation air conditioning unit. 4 are structural diagrams of a conventional ventilation air conditioning unit installed in the attic. 1... Body, 2... Heat exchanger, 3...
... Heat exchange room, 4 ... Air conditioning blower, 6.
...Blower room, 6...Intake blower, 7
...Exhaust blower, 8...Ventilation room, 9
...Intake and exhaust passage section, 1o...Top surface, 11
...Outdoor air intake port, 12...Outdoor exhaust port,
13...Return suction port, 13a...
Indoor air outlet, 14...First opening/closing damper, 1
5... Circulation opening, 21... Partition plate,
22...Intake opening, 23...Intake communication port, 24...Exhaust opening, 25...
Exhaust communication port, 26...Communication part, 27...
・Second opening/closing damper, 28... Air conditioning flow path, 2
9...Intake flow path, 3o...Exhaust flow path,
31... Reversible intake flow path.

Claims (1)

[Claims] A heat exchange chamber equipped with a heat exchanger corresponding to the indoor air outlet that communicates with the room on the top surface of the main body, a blower room that communicates with this heat exchange chamber and is equipped with an air conditioning blower, and communicates with this blower room. ,
The rear side of the main body is divided by a partition plate and corresponds to a ventilation room equipped with an intake blower and an exhaust blower that can be operated independently, the heat exchange room, the blower room, and the ventilation room. and an air intake/exhaust passage section, which opens in the top surface so as to communicate with the blower room through a return suction port returning from each room, and leads to the heat exchange room through a circulation opening provided with a first opening/closing damper. an air conditioning flow path, an air intake flow path through which air is taken in by an intake blower from an outside air intake port provided on the top surface through one of the intake and exhaust path portions, via an intake opening, and reaches the blower room from the intake communication port; An exhaust flow path that passes from the opening through the exhaust communication port of the ventilation room, passes through the exhaust opening by the exhaust blower, passes through the other side of the intake and exhaust path section, and reaches the outdoor exhaust port provided on the top surface, and the ventilation room and the intake and exhaust path. and a second opening/closing damper having a communication part open to the opening and closing part, and a reversible intake flow path which is induced by the air conditioning blower from the exhaust communication port when the opening/closing damper is opened. Ventilation air conditioning unit.