JP2989424B2 - Air conditioning system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning system having, for example, a heat recovery type ventilation unit.

[0002]

2. Description of the Related Art In general, a ventilation / air-conditioning system is known in which a ventilation unit of a sensible heat recovery type and a cooling / heating air-conditioning unit are combined to perform cooling and heating of a room while performing ventilation of the room. FIG. 5 shows an example of a conventional ventilation air conditioning system. Referring to FIG. 5, reference numeral 51 denotes a sensible heat recovery type ventilation unit, and reference numeral 53 denotes a cooling and heating air conditioning unit. The ventilation unit 51 exchanges heat between the air sucked from each room in the non-living area and the outside air, and supplies the air after the heat exchange to the inlet of the air conditioning unit 53. Air conditioning and cooling unit 5
Numeral 3 indicates that after taking in indoor air from two living areas (A zone and B zone) and exchanging heat in a unit 53 including a heat exchanger 57 and a blower 59, each of the A zone and the B zone is provided. Supply air-conditioned air to the residential area of.

According to this, while air from a non-residential area is exhausted to the outside of a building through a ventilation unit 51, an air conditioning unit is introduced into the building through the unit 51 while introducing substantially the same amount of outside air into the building as the amount of exhaust air. Each living area is air-conditioned through 53.

[0004] By the way, there has been proposed the above-mentioned configuration having a manual selection switch for selecting a room requiring cooling or heating.

When one of the zones, for example, the A zone is selected by the manual selection switch (not shown), the damper 6 is passed through a controller (not shown).
1, 65 are fully opened, and the dampers 63, 67 are closed (or the opening degree is reduced to, for example, about 20%). Therefore, in this case, the conditioned air is supplied to almost only the A zone.

[0006]

However, according to the conventional configuration, when one of the zones is selected by the manual selection switch and the cooling / heating operation is switched to the ventilation operation, the zone selection remains. Therefore, there is a problem that outside air is introduced only into the zone A and no outside air is introduced into the zone B (or ventilation becomes insufficient).

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air conditioning system which does not depend on zone selection and solves the above-mentioned problems of the prior art.

[0008]

In order to achieve the above object, the outside air introduced and air returned from a plurality of rooms are mixed and cooled.
In the air conditioning system for the air supply to the plurality of indoor after retirement or heating, cooling or a selection switch for selecting the required room heating, air supply to cool the cooling or room which is not selected by the selection switch in the heating operation Or add
When the air volume adjusting means for reducing the air volume of the heated air and the cooling or heating operation is stopped and the air supply operation is performed,
Disable the air volume reduction by the air volume adjustment means,
Means for supplying air into the room.

[0009]

According to the present invention, when a room requiring cooling and heating is selected by the selection switch during the cooling and heating operation, air-conditioned air is sent only to that room, and automatically to other rooms. Will not be sent. However, when the cooling / heating operation is stopped and the operation proceeds to the air supply operation, the selection by the selection switch is ignored, and air is automatically supplied to all the rooms.
Be supplied with air .

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a ventilation and air conditioning system according to the present invention.

In FIG. 1, 1 is a sensible heat recovery type ventilation unit, and 3 is a cooling and heating air conditioning unit. Ventilation unit 1
Exchanges heat between the air sucked from the non-living area and the introduced outside air, and supplies the outside air after the heat exchange to the inlet of the air conditioning unit 3. Air conditioning unit 3, two occupied zone (A zone, B zone) from the cold indoor air suction heat exchanger 7, and inside unit 3 with a built-in blower 9
After cooling or heating , the air-conditioned air is supplied to each of the living areas in the A zone and the B zone.

According to this, while air from the non-residential area is exhausted to the outside of the building through the ventilation unit 1, the air conditioning unit is introduced into the building through the unit 1 while introducing substantially the same amount of outside air as the amount of exhaust air. Air conditioning of each residential area through 3.

According to this embodiment, dampers 11, 13 and 15, 17 for adjusting the air volume are provided at the entrance and the exit for each of the A zone and the B zone, respectively.
A controller 31 for controlling the degree of opening of the dampers 11, 13 and 15, 17 is connected thereto.

As shown in FIG. 2, a manual selection switch 33 is connected to the controller 31. When the selection switch 33 is turned to the left in the figure, the A zone is selected and to the right in the figure. turning the, B-zone is selected, when positioned in the neutral is selected a zone and B zone both when they are selected, a small air conditioning is in the other zone
The damper is closed so that only the trapped air is supplied .

Specifically, the manual selection switch 33
When one of the zones, for example, the A zone, is selected, the dampers 61, 6
5 is fully opened, and the dampers 63 and 67 are closed. However, according to this control, when fully closed damper 63 and 67, ventilation not only conditioned air to the zone B
Since the outside air is not sent at all, the dampers 63 and 67 are usually opened by about 20% in order to solve the problem, and the air is sent to the B zone by that amount.

[0016] Thus, most of the conditioned air in this case is sent to the A zone, the remaining small air supplied to the B zone.

According to this embodiment, when the ventilation operation (air supply operation) is performed after the cooling or heating operation is stopped, regardless of whether the selection switch 33 is selected or not, a plurality of operations are performed. Air is supplied equally to the room , that is, all the rooms .

FIG. 3 is a processing flow showing the main part of this embodiment.

First, it is determined whether a cooling or heating operation is performed (S1). If the operation is being performed, whether a predetermined room is selected by the selection switch 33, that is, whether zoning is performed or not. Is determined (S2).

If there is a zoning, the conditioned air is supplied so as not to be sent to a room other than the predetermined room, that is, the air volume is adjusted according to the zoning (S3).

Of course, when there is no zoning in S2, the same air volume is supplied to each of the zones A and B (S2).
4).

Returning to S1 from S3 or S4, when the cooling or heating operation is stopped, it is determined whether or not the ventilation operation is performed (S5). If the ventilation operation is not performed, the system is stopped. Returning to S1, if the ventilation operation is performed in S5, even if there is a zoning in the scale, it is ignored and the same air volume is supplied to each of the zones A and B (S6).

That is, in this step S6, when the ventilation operation is performed after the cooling or heating operation is stopped,
Regardless of whether or not the selection switch 33 is selected, air is equally supplied to the plurality of rooms.

Referring to FIG. 4, if the cooling or heating operation is performed in a state where the zones are not divided, a necessary ventilation volume can be secured in each of zones A and B (FIG. 4A).

However, when the zones are divided, as described above, the ventilation volume on the B zone side, which is adjusted to the air volume of about 20%, becomes insufficient (FIG. 2B). This cannot be solved by this embodiment.

Assuming that the zoning by the selection switch 33 has been performed when the ventilation operation is performed after the cooling or heating operation is stopped, the air volume is adjusted according to the zoning in the related art. So about 2
The ventilation volume on the B zone side, which is adjusted to the air volume of about 0%, is insufficient (FIG. C, conventional).

According to this embodiment, when performing the ventilation operation, even if the zoning by the selection switch 33 is performed, the zoning is ignored. In both cases, sufficient ventilation can be secured (Fig. D, the present invention).

[0028]

As apparent from the foregoing description, according to the present invention, a cooling or heating operation is stopped, and when the air supply luck <br/> rolling is carried out, disabling the air volume decreases due to air-flow control means To
Then, since a means for supplying air to all the rooms is provided, even if the zoning by the selection switch is performed on the scale, the zoning is ignored and the required air supply amount in each zone is reduced. Can be secured.

[Brief description of the drawings]

FIG. 1 is a system diagram showing one embodiment of a ventilation and air conditioning system according to the present invention.

FIG. 2 is a plan view showing a selection switch.

FIG. 3 is a flowchart of a ventilation air conditioning system.

FIG. 4 is a diagram showing ventilation.

FIG. 5 is a system diagram showing a conventional ventilation air conditioning system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ventilation unit 3 Air conditioning unit 11, 13, 15, 17 Damper

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F24F 11/02 102 F24F 11/04

Claims (1)

(57) [Claims] 1. A mixture of the air returning from introducing outside air and a plurality of indoor, in the air conditioning system to supply <br/> to plural indoor After cooling or heating, select the required room is cooled or heated a selection switch, Do selected by cooling or the selection switch during a heating operation
Air volume adjusting means for reducing the air volume of the cooled or heated air supplied to the room, and when the cooling or heating operation is stopped and the air supply operation is performed, the air volume reduction by the air volume adjusting device is invalidated. ,
A means for supplying air to all the rooms; and an air conditioning system comprising: