JPH03211337A - Operation control device for ventilator - Google Patents

Abstract

PURPOSE:To improve a comfortable feeling and an energy saving by a method wherein a changing-over of a ventilation device is controlled in response to a monitoring information at an air conditioner and some detected temperature sensed by an indoor temperature sensor and an outdoor temperature sensor. CONSTITUTION:A cooling operation signal, a heating operation signal and a set temperature signal at an air conditioner are inputted from a monitoring circuit 10 to a controller 8. Each of sensed temperature signals from each of sensors 6 and 7 is inputted to the controller 8. A signal is output to an actuator driving circuit 82 in response to each of the detected temperature signals, a cooling operation signal, a heating operation signal and a set temperature signal or the like, thereby a changing-over damper is automatically controlled for its opening or closing through a changing-over motor 52, and a normal ventilation and a heat exchanging ventilation are selectively carried out. Accordingly, an operating information got from the air conditioner 9 is adjusted and then a changing-over operation of the changing-over means 5 can be carried out more accurately and positively. With such an arrangement, a comfortable feeling and an energy saving are improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an operation control device for a ventilation system used together with an air conditioner.

(Prior Art) Conventionally, this type of ventilation system has been disclosed in, for example, Japanese Patent Application Laid-Open No. 61-2954.
As described in Publication No. 43 and shown in Figure 6,
Indoor and outdoor air supply ports (B) on main casing (A)
(C) and indoor and outdoor exhaust ports (D) and (E), and an indoor air supply fan (F) near the indoor air supply port (B); An outdoor exhaust fan (G) is provided near the port (E), and each of the air supply ports (B) and (C) is provided inside the center of the casing (A).
The outside air passing through the air supply passageway (H) between the
D) A heat exchanger (K) that exchanges heat with the indoor air flowing through the exhaust passageway (J) between (E) and the other is provided, while the heat exchanger (K) is bypassed. A bypass passage (L) is provided, and the bypass passage (L) and the air supply passage (H) can be switched via a switching damper (M). In addition, the above-mentioned ventilation system is equipped with an operation control device, that is, an indoor temperature detector that detects the indoor temperature and an outdoor temperature detector that detects the outdoor temperature, and based on the detected temperature of each detector. By switching the switching damper (M), the outside air passing through the air supply passage (H) and the indoor air passing through the exhaust passage (J) are ventilated while exchanging heat with each other in the heat exchanger (K). This heat exchanger (K) directly supplies outside air and indoor air without performing heat exchange.

Exhaust air and normal ventilation are selectively used to save energy and provide comfort.

The above-mentioned normal ventilation and heat exchange ventilation are performed as follows during cooling and heating operations using the air conditioner, based on the indoor temperature and the temperature detected by the outside temperature detector.

That is, in summer, when the operation of the air conditioner is determined to be cooling operation, and the indoor temperature detected by the indoor temperature sensor is higher than the outdoor temperature detected by the outdoor temperature sensor, the damper is activated. By opening the bypass passage (L) at (M) and performing normal ventilation, the room is cooled with outside air to save energy, and when the indoor temperature is lower than the outside air temperature, the switching damper (M) is used to bypass the aisle(
By closing L) and performing heat exchange ventilation, the outside air introduced into the indoor side is heat exchanged with the heat exchanger (K), reducing heat loss on the indoor side, thereby saving energy. be. In addition, when used in an office or the like where there are many OA type equipment, the same procedure as described above is carried out, and when the indoor temperature is higher than the outside temperature, the above-mentioned normal ventilation is performed to save energy. When the indoor temperature is lower than the outside temperature, the heat exchange ventilation is performed to save energy.

Furthermore, in winter, the operation of the air conditioner is determined to be heating operation, and when the indoor temperature is higher than the outside temperature, the heat exchange ventilation is performed to eliminate the feeling of cold draft, providing comfort and saving energy. Moreover, when the indoor temperature is lower than the outside air temperature, energy can be saved by performing the above-mentioned normal ventilation and heating with outside air. In addition, when using in an office or the like where there are many OA type equipment, the same procedure as mentioned above is carried out, and when the indoor temperature is higher than the outdoor temperature, the heat exchange ventilation is performed to save energy, or When the indoor temperature is lower than the outside temperature, the normal ventilation is performed to save energy.

(Problem to be solved by the investigation) However, in the operation control device for the ventilation system as described above, when the switching operation of the ventilation system is performed by the air conditioner during cooling or heating operation, the operation information on the air conditioner side is not transmitted. Without monitoring, in other words, without considering the indoor set temperature set by the air conditioner, and without incorporating cooling and heating operation information, it is based only on the detected temperatures of the indoor and outdoor air detectors. Therefore, there is a problem that proper judgment is not made and the reverse operation is performed, making it impossible to obtain sufficient comfort and energy savings. For example, when used in an office with many OA type equipment, when the indoor temperature is higher than the outside temperature during cooling, ventilation is normally performed, but the indoor temperature is lower than the set temperature set on the air conditioner side. Sometimes, as mentioned above, if normal ventilation is performed, the indoor temperature will drop further than the set temperature as outside air is introduced into the room, giving the occupants a draft feeling and reducing comfort. Also, heat exchange ventilation is performed when the indoor temperature is lower than the outside temperature, but if heat exchange ventilation is performed when the indoor temperature is lower than the set temperature, the indoor temperature will be lower than the set temperature. This results in the inconvenience of not being able to quickly approach the vehicle, resulting in insufficient comfort. Furthermore, OA
When used in an office or the like with many types of equipment, similar inconveniences occur during heating. In other words, heat exchange ventilation is performed when the indoor temperature is higher than the outside temperature, but if heat exchange ventilation is performed when the indoor temperature is higher than the set temperature, there is a disadvantage that the indoor temperature cannot be brought closer to the set temperature quickly. Normal ventilation is performed when the indoor temperature is lower than the outside air temperature, but if normal ventilation is performed when the indoor temperature is higher than the set temperature, it is insufficient for comfort. As the indoor temperature is introduced, the indoor temperature rises further relative to the set temperature, and as a result, warm air higher than the indoor temperature is introduced, giving a feeling of a hot air draft, which impairs comfort.

The present invention was made in view of the above-mentioned problems, and its purpose is to monitor operating information on the air conditioner side, and to detect temperature based on this monitor information and the temperatures detected by the indoor and outdoor temperature detectors. An object of the present invention is to provide an operation control device for a ventilation system that can improve both comfort and energy saving by controlling switching of the ventilation system.

(Means for Solving the Problem) In order to achieve the above object, the present invention provides a heat exchanger (4
), indoor and outdoor air supply ports (11) (12), indoor and outdoor air exhaust ports (13) (14), indoor air supply fan (2), and outdoor exhaust fan (3). between the indoor air supply port (11) and the outdoor air supply port (12),
A bypass passage (17) bypassing the heat exchanger (4) is provided, and the bypass passage (17) and the exhaust passage (
16) In an operation control device for a ventilator equipped with a switching means (5) for switching between the
), and each of the detectors (6) (
7), a monitor line (10) capable of monitoring the cooling and heating operation signals of the air conditioner (9) used together with the ventilation device, and the set temperature signal of the indoor temperature controller.
and a controller (8) that controls the switching means (5) according to the temperatures detected by the respective detectors (6) and (7), the operation signal and the set temperature signal. It is.

(Function) The switching operation by the switching means (5) between the exhaust passageway (16) and the bypass passageway (17) is performed based on the cooling and heating operation signals of the air conditioner (9) and the set temperature signal of the indoor temperature controller. is monitored on the monitor line (10), and this line (1
This is performed by the operation of the controller (8) based on the operating signal and set temperature signal monitored at 0), and each detected temperature detected by the indoor and outdoor temperature detectors (6) and (7). By taking into consideration the operating information from the air conditioner (9) side, the switching operation of the switching means (5) is performed more accurately and reliably, and both comfort and energy saving are improved.

(Example) The ventilation system shown in Figs. 4 and 5 has a main body casing (
Indoor and outdoor air supply ports (11) and (12) and indoor and outdoor air exhaust ports (13 and 14) are formed in 1), and the indoor and outdoor air supply ports are formed inside the casing (1). air mouth (11
) and an outdoor exhaust fan (3) near the outdoor exhaust port (14). With this heat exchanger (4),
Between the outside air passing through the air supply passage (15) between the air supply ports (11) and (12) and the indoor air passing through the exhaust passage (16) between the exhaust ports (13 and 14). and a bypass passage (17) for bypassing the heat exchanger (4) is provided inside the casing (1) on the side of the heat exchanger (4). , a switching means (5) is provided for switching between the bypass passage (17) and the exhaust passage (16).

Further, as the switching means (5), a switching damper (51
), its switching motor (52), and the motor (51)
A plurality of connecting rods (
53) to selectively switch between the exhaust passage (16) and the bypass passage (17) by opening and closing the damper (51) driven by the motor (52).

In addition, in FIG. 5, (41) and (41) are the heat exchanger (4).
This is a filter.

Then, as shown by the solid line in FIG. 4, by switching the switching damper (51) and closing the bypass passage (17), the outside air passing through the air supply passage (15) is controlled. As indicated by the solid arrow, the heat exchanger (4)
The air is supplied from the air supply fan (2) to the indoor side by passing through the air supply fan (2), and the indoor air passing through the F element passage (16) is
As shown by the dotted arrow in the same figure, υF is passed through the heat exchanger (4) and from the exhaust fan (3) to the outdoor side.
When the air passes through the heat exchanger (4), the outside air taken into the indoor side and the indoor air discharged outside the room are ventilated while exchanging heat with each other, thereby performing so-called heat exchange ventilation. On the other hand, as shown by the imaginary line in the figure, the damper (51) is operated to switch the bypass passage (17).
By opening the door, ventilation is performed by directly supplying and exhausting outside air and indoor air without exchanging heat between the outside air and indoor air using the heat exchanger (4), as shown by the chain line arrow, thereby performing so-called normal ventilation. By selectively performing normal ventilation and heat exchange ventilation, energy saving measures and comfort can be achieved.

Therefore, the above ventilation system is provided with an operation control device that automatically switches between normal ventilation and heat exchange ventilation, and this operation control device is configured as follows.

That is, as shown in FIG. 1, the operation control device includes an indoor temperature detector (6) for detecting the indoor temperature, an outdoor temperature detector (7) for detecting the outdoor temperature, and the switching means (5). A controller (8) for switching control is used, and each of the detectors (8) and (7) is connected to the input side of this controller (8). Further, the above ventilation device is installed indoors in conjunction with an air conditioner (9) equipped with an indoor unit (91), an outdoor unit (92), and a remote control (93). ) is provided with a monitor line (10) for monitoring the cooling and heating operation signals and the indoor temperature setting signal, and the monitor line (10) is connected to the input side of the controller (8), E3) The switching means is an output signal from the controller (8) based on the temperature detected by (7) and the operating signal and set temperature signal of the air conditioner (9) monitored by the monitor line (10). (5) is automatically controlled.

More specifically, as shown in Fig. 2, various operating information such as a run/stop signal, cooling/heating operation signal, set temperature signal, and air volume setting signal are sent to the remote control (93) of the air conditioner (9). An input switch (94), a control circuit (95) consisting of an encoder, and a transmission circuit (96) are provided, and the transmission circuit (96) is provided on the indoor unit (91) side.
), a control circuit (98) consisting of a decoder, and a transmission circuit (99) are provided.

Further, on the ventilation device side, a transmission circuit (81) connected to the transmission circuit (99) of the indoor unit (91) in the air conditioner (9) via the monitor line (10), and this transmission circuit. The controller (8) connected to (8)
, an actuator drive circuit (82), each motor (of the damper (51) and supply/exhaust fans (2) and (3)).
52) A plurality of drive devices (8) controlling (21) (31)
3), and on the output side of this drive device (83), a switching damper motor (U2) of the damper (51), a motor (21) of the air supply fan (2), and an exhaust fan (2) are provided. 3) are connected to the motors (31) respectively.

When automatically controlling the ventilation system, the monitoring circuit (10) transmits cooling and heating operation signals, set temperature signals, etc. from the air conditioner (9) to the transmission circuit (81) on the ventilation system side. input to the controller (10) via the controller (8).
6) The detected temperature signals according to (7) are respectively inputted, and the actuator drive circuit (82
) side, the switching motor (52)
The switching damper (51) is automatically controlled to open and close via the
The above-mentioned normal ventilation and heat exchange ventilation are selectively performed. Note that the cooling and heating operation signals, set temperature signals, etc. of the air conditioner (9) can also be directly input from the remote controller (93) to the controller (8).

Further, the present invention can also be applied to the operation control bag mit of a ventilation system as described above, a building air conditioner using a plurality of air conditioners, and the like.

Further, on the ventilation device side, the supply and exhaust fans (2) are provided.
(3) and a switching motor (52) for the damper (51).
and switches for turning on/off the fans (2) (
An operating body (100) equipped with the strength switch of 3), a switch for manually or automatically controlling the damper (51), etc.
is provided, and this operating body (100) is connected to the controller (
8) is connected to the input side.

Next, the mode of controlling gIJ of the ventilation system by the above operation control device will be explained based on the flowchart shown in FIG. 3.

First, when an operating signal for the air conditioner (9) is input (step 1), in steps 2 and 3.4, a blowing operation, a cooling operation, and a heating operation are respectively determined in accordance with the operation signal. , for ventilation operation (step 2),
Heat exchange ventilation (step 5) is performed in the ventilation device, and when cooling operation (step 3) is performed, in step 6, the set temperature set on the air conditioner (9) side is set to the outside air temperature. It is determined whether the temperature is higher than the outside temperature detected by the detector (7), and if the answer is YES, that is, if the outside temperature is lower than the set temperature, in step 7, the indoor temperature detected by the indoor temperature detector (6) is determined. The indoor temperature is
It is determined whether the temperature is in the middle range between the outside air temperature and the set temperature, and if yes, heat exchange ventilation is performed in step 5, and if no, normal ventilation is performed in step 8. be exposed. Further, if the answer in step 6 is NO, that is, the outside air temperature is higher than the set temperature, it is determined in step 9 whether the outside air temperature is higher than the indoor temperature, and if YES, the heat exchange ventilation in step 5 is performed. If no, normal ventilation in step 8 is performed. In addition, in the case of heating operation (step 4), it is determined in step 10 whether the outside air temperature is higher than the set temperature, and if YES, in step 11, it is determined that the indoor temperature is in the intermediate range between the outside air temperature and the set temperature. In the case of YES, the heat exchange ventilation in step 5 is performed, and in the case of no, the normal ventilation in step 8 is performed. In other words, when the outside temperature is lower than the set temperature,
In step 12, it is determined whether the indoor temperature is higher than the outside temperature. If yes, the heat exchange ventilation in step 5 is performed, and if no, the normal ventilation in step 8 is performed.

Next, the above switching states will be explained based on the following table.

In the table, cooling A and heating A refer to general indoor use, while cooling B and heating B refer to use in offices with many OA type equipment. , O
A indicates the outside air temperature detected by the outside air temperature detector, S indicates the set temperature set on the air conditioner side, and RA1 to RAS indicate the temperature state on the indoor side.

In the table above, when the indoor temperature in the air conditioner A is at the temperature indicated by RAI, that is, when the indoor temperature RA1 is higher than the predetermined set temperature S and higher than the outside air temperature OA, the damper (M) closes the bypass passage (L). ) is opened to perform normal ventilation, the room is cooled with outside air and energy is saved.Also, when the room temperature is at the temperature indicated by RA2 in cooling A, that is, the room temperature RA2 is set to the set temperature S. If the outside air temperature is lower than OA, the switching dunnno f(M
) by closing the bypass passage (L) and performing heat exchange ventilation, the outside air introduced into the indoor side is transferred to the heat exchanger (K).
The damper ( By closing the bypass passage (L) at M) and performing heat exchange ventilation, a feeling of draft of warm air from the outside air is created (to provide comfort and save energy).

In addition, in the air conditioner B, when the indoor temperature is in the temperature state indicated by RAI, that is, when the indoor temperature RA1 is higher than the outside air temperature OA and equal to or higher than the set temperature S, the normal ventilation is performed to save energy. When the temperature is in the temperature state indicated by the indoor temperature RA2 at B, that is, when the indoor temperature RA2 is lower than the set temperature S and higher than the outside temperature OA, the heat exchange ventilation described above is performed, sacrificing some energy saving characteristics. Direct introduction of outside air into the room improves comfort without giving a draft feeling, and furthermore, when the indoor temperature in air conditioner B is at the temperature state indicated by RA3, that is, the indoor temperature RA3 is the set temperature S. Below, when the outside air temperature is lower than OA, the above-mentioned normal ventilation is performed so that the indoor temperature can quickly approach the set temperature, thereby increasing comfort and energy saving characteristics by quickly bringing the indoor temperature closer to the set temperature.

Furthermore, with heating A, when the indoor temperature is in the temperature state indicated by RAI, that is, when the indoor temperature RAI is higher than the set temperature S and higher than the outside air temperature OA, perform the heat exchange ventilation,
This eliminates the feeling of a draft of cold air, providing comfort and saving energy.In addition, with heating A, the indoor temperature is reduced to RA.
2, that is, the indoor temperature RA2
is lower than the set temperature S and higher than the outside air temperature OA, the heat exchange ventilation is performed to save energy, and when the indoor temperature is in the temperature state shown by RA3 with heating A, that is, the indoor temperature RAS is higher than the outside air temperature. Set temperature S lower than OA
In the following cases, the above-mentioned normal ventilation is performed to save energy.

In addition, with heating B, when the indoor temperature is in the temperature state indicated by RAI, that is, when the indoor temperature RAI is higher than the outside air temperature OA and equal to or higher than the set temperature S, normal ventilation is performed to quickly bring the indoor temperature to the set temperature. This improves comfort by allowing the temperature to reach the set temperature quickly, and improves energy-saving characteristics. Also, in heating B, when the indoor temperature is in the temperature state indicated by RA2, that is, when the indoor temperature RA2 is higher than the set temperature S and lower than the outside air temperature OA, heat exchange ventilation is performed and the indoor temperature is increased by introducing outside air. This improves comfort by preventing the temperature from rising further relative to the set temperature and causing a feeling of hot air draft due to the introduction of hot air that is higher than the room temperature. When is in the temperature state indicated by RA3,
In other words, when the indoor temperature RAS is below the set temperature S, the outdoor temperature OA
When the temperature is lower, the above-mentioned normal ventilation is performed to save energy.

(Effects of the Invention) As explained above, in the operation control device for a ventilation system according to the present invention, the indoor temperature detector (6) detects the indoor temperature.
, an outside air temperature detector (7) that detects the outside air temperature, and a controller (8) of the switching means (5) that switches between the air supply passage (15) and the intake passage (17). Each of the detectors (6) and (7) is connected to the input side of the controller (8).
and a monitor line (10) that can monitor the cooling and heating operation signals of the air conditioner (9) used with the ventilation device and the set temperature signal of the indoor temperature controller.
is connected to the input side of the controller (8), and a signal from the controller (8) based on the 36 memory level, the operating signal and the set temperature signal is transmitted to each of the detectors (6) and (7). Since the switching means (5) is controlled by the output, the controller is configured to control the switching means (5) based on the temperature information of each of the temperature detectors (6) and (7) and the operation information from the air conditioner (9) side. The output from (8) allows the switching operation of the switching means (5) to be performed properly and accurately and reliably without being reversely operated, thereby improving both comfort and energy saving. It has come to this.

[Brief explanation of drawings]

Fig. 1 is a stem diagram showing an operation control device for a ventilation system according to the present invention, Fig. 2 is a block diagram of the same, Fig. 3 is a flowchart of the operation control device, and Fig. 4 is a plan cross-sectional view of the ventilation g position. , FIG. 5 is a side sectional view of the same side, and FIG. 6 is a side sectional view showing a conventional example. (11)...-Indoor air supply port (12)・e...Outdoor air supply port (13)...Indoor exhaust port (14)...-Outdoor air exhaust port (15)・・Meeting φ air supply passage (17) fist...bypass passage (2)---・φ・indoor air supply fan (3)...participation・outdoor exhaust fan (4)...fighting e・heat exchange Device (5) - φ and switching means (6) e... Kenkai indoor temperature detector (7) - 11@ - Outside air temperature detector (8) ---- Controller (9)・Fist air conditioner (10)...φ・Monitor line Figure 1 1---'' Name of the No. Invention Relationship with the Case of Person Who Amends the Operation Control Device of a Ventilation System Applicant Address Umeda T-ton 9 Building, 2-4-12 Nakazaki Nishi, Kita-ku, Osaka-shi, Osaka Name (285) Daikin Industries, Ltd. Company Representative Yama 1) Minoru

Claims (1)

[Claims] 1) Heat exchanger (4) and indoor and outdoor air supply ports (11)
(12), indoor and outdoor exhaust ports (13), (14), indoor air supply fan (2), and outdoor exhaust fan (3)
and the indoor air supply port (11) and the outdoor air supply port (11).
A bypass passage (17) bypassing the heat exchanger (4) is provided between the heat exchanger (4) and the bypass passage (17).
) and an exhaust passageway (16), the ventilation system is equipped with an indoor temperature detector (6) for detecting the indoor temperature and an outdoor temperature detector for detecting the outdoor air temperature. In addition, on the input side, the output side of each of the detectors (6) and (7), cooling and heating operation signals of the air conditioner (9) used together with the ventilation device, and indoor temperature control are provided. A monitor line (10) that can monitor the set temperature signal of the detector is connected to each of the detectors (6) and (7).
a controller (8) that controls the switching means (5) according to the detected temperature, the operating signal and the set temperature signal;
An operation control device for a ventilation system, comprising: