JP2014077623A - Ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilator that is installed to a ceiling, surly ensures air flow, and reduces energy loss.SOLUTION: A plurality of ventilators installed in the same building share total ventilation air flow information determined by total ventilation air flow determination means 20 and preferential air flow information taking priority over setting air flow of the installed ventilators via an information transmission unit 18 and an information reception unit 19, and includes a control unit 17 including first air flow determination means 21 for determining air flow so as to hold total ventilation air flow on the basis of the acquired total ventilation air flow necessary for the building.

Description

  The present invention relates to a ventilator that controls the amount of exhaust air in relation to the operation of ventilation.

  This type of conventional ventilator is as follows.

  That is, when the range hood is driven while the bathroom ventilator is performing 24-hour ventilation, the 24-hour ventilation function of the bathroom ventilator is stopped or the ventilation air volume is reduced. Moreover, it was the structure which detects that the range hood fan stopped with the electric current sensor, and restarts the ventilation of a bathroom ventilator for 24 hours, or increases the return | restoration of exhaust_gas | exhaustion (for example, refer patent document 1).

JP 2006-38364 A

  According to the above-described conventional example, when the activation detection unit detects activation of the large displacement device when performing ventilation for 24 hours, the ventilation for 24 hours is stopped or the ventilation amount is reduced. When the large displacement device is stopped, it is detected by the activation detection means, and the room is ventilated by using the adjustment function of resuming the 24-hour ventilation or increasing the return of the ventilation airflow. It prevented the negative pressure from being generated inside the building and making it difficult for the door to open and the noise of the drafts to be loud.

  As a problem in such a ventilation device, for example, when a motor that exhausts a large amount of air such as a range hood fan breaks down, the ventilation is stopped for 24 hours. Ventilation with a large air flow causes over-ventilation and excessive air flow, which causes useless power and uncomfortable feeling.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to satisfy building ventilation with optimum electric power.

In order to achieve this object, the present invention constitutes a ventilation system that includes at least two ventilation devices in the same building and connects them with one information transmission network to keep the ventilation air volume in the building constant. A ventilation device,
Each ventilator includes an information transmitting unit that transmits information to other ventilators via the information transmission network, an information receiving unit that receives information from other ventilators via the information transmission network, A control unit for determining the operation, the control unit from the information of the other ventilation device received by the information receiving unit, the total ventilation air volume determination means for determining the total ventilation air volume necessary for the building, The first air volume determining means for determining the target air volume so as to maintain the total ventilation air volume and the output air volume actually output by the own ventilator are detected, and obtained when the output air volume is different from the target air volume. The configuration is provided with an air volume detecting means for notifying the other ventilator through the information transmitting section with the output air volume as a priority air volume, and this configuration can solve the intended problem.

As described above, the present invention is a ventilator that constitutes a ventilating system that includes at least two ventilators in the same building, and is connected to each other by one information transmission network to keep the ventilation air volume in the building constant. And
Each ventilator includes an information transmitting unit that transmits information to other ventilators via the information transmission network, an information receiving unit that receives information from other ventilators via the information transmission network, A control unit for determining the operation, the control unit from the information of the other ventilation device received by the information receiving unit, the total ventilation air volume determination means for determining the total ventilation air volume necessary for the building, The first air volume determining means for determining the target air volume so as to maintain the total ventilation air volume and the output air volume actually output by the own ventilator are detected, and obtained when the output air volume is different from the target air volume. An air volume detection means for notifying the other ventilator through the information transmission unit with the output air volume as a priority air volume is provided.

  By adopting such a configuration, the control unit of each ventilator can send the necessary information on the total ventilation air volume and the information on the priority air volume of other ventilators connected to the same building to the information transmission unit and the information. Information can be shared through two-way communication via the receiver, and each ventilator can determine the amount of air it should move based on the various information, so there are multiple ventilators in the same building. Even when installed, the necessary ventilation air volume of the entire building can be kept optimal, and the energy loss due to excessive ventilation air volume can be reduced.

The figure which shows the example of installation of the ventilation system comprised with the ventilation apparatus of the 1st Embodiment of this invention Exploded perspective view of the ventilation device of the first embodiment Partially cutaway perspective view showing an installation example of the ventilation device The figure which shows the total ventilation air volume setting part of the ventilator ((a) external view, (b) correlation between floor area and air volume) Control block diagram of the ventilator Control flow chart of the ventilator The disassembled perspective view of the ventilation apparatus of the 1st example of the 2nd Embodiment of this invention Exploded perspective view of the ventilation device of the second example The figure which shows the external air volume setting part of the ventilator ((a) External view, (b) Correlation diagram between air volume setting and air volume) Control block diagram of the ventilator Control flow chart of the ventilator Control block diagram of the ventilator of the second embodiment of the present invention Control flow chart of the ventilator

The ventilator according to claim 1 of the present invention comprises at least two ventilators in the same building, each connected by a single information transmission network, and constituting a ventilation system that keeps the ventilation air volume in the building constant. A device,
Each ventilator includes an information transmitting unit that transmits information to other ventilators via the information transmission network, an information receiving unit that receives information from other ventilators via the information transmission network, A control unit for determining the operation, the control unit from the information of the other ventilation device received by the information receiving unit, the total ventilation air volume determination means for determining the total ventilation air volume necessary for the building, The first air volume determining means for determining the target air volume so as to maintain the total ventilation air volume and the output air volume actually output by the own ventilator are detected, and obtained when the output air volume is different from the target air volume. An air volume detection means for notifying the other ventilator through the information transmission unit with the output air volume as a priority air volume is provided.

  As a result, the first ventilation volume determination means of each ventilator through two-way communication via the information transmission section and the information reception section is the same as the total ventilation air volume information necessary for the building determined by the total ventilation air volume determination means. Based on the priority airflow information of other ventilators connected to the building, the self airflow is determined so as to maintain the total ventilation airflow, and each ventilator acquires the airflow information of the other ventilators and builds the building. Since the air volume can be individually increased and decreased and adjusted so that the total air volume becomes the total ventilation air volume, energy loss due to excessive ventilation air volume can be reduced, and ventilation can be performed efficiently.

  In another ventilator of the present invention, the control unit further includes an external air volume setting unit that commands the operation air volume, and when the operating air volume is set in the external air volume setting unit, the set operation air flow is set. In addition to instructing to operate with the air volume, a second air volume determining means for notifying the other ventilation device of the set operating air volume as the priority air volume via the information transmitting unit is provided.

  Thereby, when the external air volume setting unit provided in the ventilator is set, the air volume determined by the second air volume determining unit is given priority over the air volume determined by the first air volume determining unit, and the new air volume is set. By transmitting the priority air volume information to the other ventilator through two-way communication via the information transmitter and the information receiver, it is possible to grasp the latest state of the other ventilators and Even when the air volume setting unit is set and the air volume is increased, the amount of air flow can be determined and the increase can be reduced so that other ventilation devices can maintain the total ventilation air volume required for the building. Energy loss can be reduced.

  Further, in another ventilator of the present invention, the first air volume determining means has a value obtained by dividing the total ventilation air volume by the number of the ventilators connected in the same information transmission network as its own target air volume. Therefore, it is possible to calculate its own target air volume only by judging the number of ventilation devices connected to the same information transmission network.

  According to another ventilator of the present invention, the information transmitting unit and the information receiving unit transmit and receive information on a maximum air volume of the own ventilator, and the first air volume determining unit is configured to transmit the information on the total ventilation air volume. The target air volume is the air volume multiplied by the ratio of the maximum air volume of the ventilator.

  As a result, even when ventilators with different maximum airflows are installed, information on the maximum airflow can be communicated to other ventilators through two-way communication via the information transmitter and information receiver. Since the air volume can be adjusted to increase or decrease individually so that the air volume becomes the set air volume according to the maximum air volume of the ventilator so that it becomes the total ventilation air volume, even when ventilators with different maximum air volumes are installed It has the effect of reducing the energy loss due to excessive ventilation air volume and performing efficient ventilation.

  In addition, another ventilation device of the present invention has a temporary total ventilation air volume setting unit that sets a temporary total ventilation air volume of the building, and the information transmission unit uses the temporary total ventilation air volume as transmission information. The total ventilation air volume determination unit determines that the maximum ventilation air volume obtained through the information reception unit is the total ventilation air volume necessary for the building.

  Thereby, each ventilation apparatus is the same structure, Comprising: The total ventilation air volume of the whole building can be determined in the state which has the temporary total ventilation air volume setting part which sets a total ventilation air volume in each.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a diagram showing an example of an installation configuration of a ventilation system according to Embodiment 1 of the present invention. Here, in a building having a total floor area of 200 [m ² ], the same specification with a maximum air flow capacity of 150 [m ³ / h] is shown. Assuming that two ventilators are installed, each ventilator is a first ventilator 1 and a second ventilator 2, and the first ventilator 1 is installed in the LDK, Assuming that the second ventilation device 2 is installed in a toilet / bathroom, Embodiment 1 of the present invention will be described below.

  In FIG. 2, a main body case 3 of the ventilation device is a box-shaped main body case having an indoor air intake opening 4 on a lower surface and an indoor air discharge opening 5 on a side surface (or upper surface), and a blower 6 is provided inside. It has been.

  As shown in FIG. 3, the main body case 3 of the ventilator is installed on the upper surface of the ceiling plate 7. The ceiling plate 7 has an opening (not shown) having a size substantially the same as the indoor air intake opening 4. Z).

  Further, one end of a duct 8 is connected to the indoor air discharge opening 5 of the main body case 3 of the ventilator, and the other end of the duct 8 is extended to the outside.

  The main body case 3 is detachably attached with a decorative board 10 having slit-like air holes 9 so as to cover the indoor air intake opening 4 from the lower surface of the ceiling board 7.

  The attachment of the decorative plate 10 to the main body case 3 has a well-known structure, and will be described briefly. As shown in FIG. 2, the attachment spring 11 of the decorative plate 10 is attached to the main body case 3. By attaching it to the section 12, this operation can be easily performed. Since the decorative plate 10 is larger than the indoor air intake opening 4 of the main body case 3, the opening (not shown) of the ceiling plate 7 and the indoor air intake opening 4 are connected to the ceiling plate. 7 is covered from the lower surface side to enhance the aesthetic sense.

  In addition, a temporary total ventilation air volume setting unit 13 for setting the air volume to be secured in the building is attached to a position where the decorative board 10 is attached and removed and can be easily checked and operated by the user. As shown in FIG. 4A, the temporary total ventilation air volume setting unit 13 is configured to set the total ventilation air volume to be secured in the building, but is not limited thereto, and the total ventilation air volume is uniquely set. Any setting value that can be determined is acceptable. Here, “temporary” is set by provisional total ventilation air volume setting units 13 provided in a plurality of ventilation devices, as will be described later, so that one total ventilation air volume Q is finally set in the building. This is because the process of determining is necessary.

  By the way, as an input method of the temporary total ventilation air volume setting unit 13, for example, the total floor area of a building can be mentioned. In the construction industry, the amount of air that must be secured is generally determined by the floor area of the building. As shown in Fig. 4 (b), the total ventilation air flow required for the building depends on the floor plan. Is defined. Alternatively, as an input method of the temporary total ventilation air volume setting unit 13, a method of directly inputting the temporary total ventilation air volume Qn may be used.

  Further, as shown in FIG. 4A, the provisional total ventilation air volume setting unit 13 is provided with a dial type switch that can set the setting value in multiple stages. However, the setting is not limited to this, and the switching setting is not limited to this. If possible.

  Next, a block diagram of a control circuit for controlling the ventilation air volume of the ventilator will be described with reference to FIG.

  The control circuit block includes a power supply circuit 15 connected to the commercial power supply 14, and a three-phase (U, V, V) connected from the output voltage of the power supply circuit 15 via a drive IC 16 that is an assembly of switching elements such as FETs. A blower 6 such as a DC motor having a W-phase stator winding and a controller 17 that adjusts the rotational speed of the blower 6 are provided.

  The control circuit block includes a provisional total ventilation air volume setting unit 13 for setting the air volume to be secured in the building, an information transmission unit 18 for transmitting information to other ventilation devices, and information from other ventilation devices. The information receiving part 19 which acquires is provided.

  A power supply circuit 15, a drive IC 16, a temporary total ventilation air volume setting unit 13, an information transmission unit 18, and an information reception unit 19 are connected to the control unit 17.

  The control unit 17 is driven by DC5V or DC3V, which is the output voltage of the power supply circuit 15, and is configured by a CPU (Central Processing Unit). The operation of the control unit 17 to be described later is implemented in the form of a program in which the counter, RAM, and ROM in the control unit 17 cooperate.

  Moreover, the control part 17 is the total ventilation air volume judgment means 20 which determines the total ventilation air volume which should be ensured in a building, the 1st air volume determination means 21 which determines an own air volume, and the air volume which the air blower 6 is actually outputting. The air volume detecting means 22 for detecting the air flow and the calculation buffer 23 for storing the information of the self-ventilator for calculation.

  In addition, the information transmission part 18 and the information reception part 19 transmit / receive the information regarding the communication ID for making a communication other party identify a transmission source, and the air volume of a ventilation apparatus between ventilation apparatuses, and each ventilation apparatus The connection between the information transmitting unit 18 and the information receiving unit 19, that is, the information transmission network between the ventilation devices may be either a wired type or a wireless type, and various types of information transmission networks are applicable.

  The total ventilation air volume determination means 20 is a temporary total ventilation air volume Qn (n is a subscript corresponding to the ventilation apparatuses 1, 2,...) Set by the temporary total ventilation air volume setting unit 13 of the self-ventilator. ) And the provisional total ventilation air volume Qn of the other ventilation device received by the information receiving unit 19, the largest temporary total ventilation air volume Qn is set as the total ventilation air volume Q to be secured in the building. One air volume determining means 21 is connected. In addition, since the largest in the temporary total ventilation air volume Qn is set as the total ventilation air volume Q, the temporary total ventilation air volume Qn should just be set only in any one among several ventilation apparatus.

  The first air volume determining means 21 determines its own target air volume qn based on the total ventilation air volume Q determined by the total ventilation air volume determining means 20 and information of other ventilation devices, and the blower 6 via the drive IC 16. This is to adjust the air volume.

The air volume detecting means 22 is provided with a sensor (not shown) for detecting the air volume inside the duct 8 shown in FIG. 3 and a method of detecting based on the information on the current and rotation speed of the blower 6. The air volume actually output by the blower 6 (output air volume q _R n) is detected. Then, this output air volume q _R n is compared with its own target air volume qn set in the blower 6. As a result of the comparison, if the actual output air volume q _R n is different from the target air volume qn, the other ventilator is informed that the fan 6 is moving with a priority air volume over the target air volume qn set in the fan 6. Therefore, the output air volume q _R n that is actually output from the blower 6 is set as the priority air volume Pn of the self-ventilator.

On the other hand, when the actual output air volume q _R n is equal to the target air volume qn, the priority air volume Pn = 0 is set. This “equal” is only required to match within a certain range, and is determined to be “equal” when the output air volume q _R n is within a range of, for example, ± 5% with respect to the target air volume qn. To do. In other words, the “different case” in this case is a state in which the output air volume q _R n is out of the range of ± 5% with respect to the target air volume qn.

  The air volume detection means 22 is connected to the calculation buffer 23 and accumulates the priority air volume Pn in the calculation buffer 23.

  The calculation buffer 23 preferentially overrides the information on the temporary total ventilation air volume Qn set by the temporary total ventilation air volume setting unit 13 and the target air volume qn determined by the first air volume determining means 21, and sets the air volume to be set in its own ventilator. Is stored for calculation, and is connected to the information transmission unit 18.

  The calculation buffer 23 stores in advance information of a communication ID that can identify a communication partner when transmitting / receiving information to / from another ventilation device.

  In the above configuration, the air volume control operation of the ventilator will be described with reference to the flowchart shown in FIG.

  The flow control operation flow of the ventilator can be explained by the following five steps.

That is, a flow (STEP 1) for storing information on the temporary total ventilation air volume Q _n set by the self-ventilator and information on the initial priority air volume Pn (= 0 [m ³ / h]) in the calculation buffer 23 When,
The information stored in the calculation buffer is transmitted to another ventilator via the information transmitter 18 and the information is received from the other ventilator via the information receiver 19 (STEP 2).
A flow (STEP 3) showing the total ventilation air volume judgment means 20,
A flow (STEP 4) showing the first air volume determining means 21,
And a flow (STEP 5) showing the air volume detection means 22.

  Details will be described below.

When power is supplied to the first ventilator 1 and the second ventilator 2, as shown in STEP1, the temporary total ventilation air volume Q1 set by the temporary total ventilation air volume setting unit 13 in each ventilation apparatus. , Q2 is stored in the calculation buffer 23. Further, information on initial priority air volumes P1 and P2 (= 0 [m ³ / h]) is accumulated.

In the present embodiment, the temporary total ventilation air volume setting unit 13 is configured to directly set the temporary total ventilation air volume Qn as shown in FIG. For example, the temporary total ventilation air volume setting unit 13 of the first ventilation device 1 is set with the temporary total ventilation air volume Q1 = 150 [m ³ / h], and the temporary total ventilation air volume setting unit 13 of the second ventilation device 2 is set. Then, it is assumed that the provisional total ventilation air volume Q2 = 170 [m ³ / h] is set. These pieces of information are stored in the calculation buffer 23.

  The communication ID of the first ventilator 1 is I1 = 101, the communication ID of the second ventilator 2 is I2 = 102, and is stored in the calculation buffer 23 of each ventilator.

Further, as described above, as an initial priority air volume of the first ventilator 1, P1 = 0 [m ³ / h], as the preferred air volume of the second ventilator 2 initial, P2 = 0 [m ³ / h] is stored in the calculation buffer 23.

  Next, as shown in STEP 2, the information transmission unit 18 of each ventilator stores the information on the temporary total ventilation air volume Qn, the information on the priority air volume Pn, and the information on the communication ID stored in the calculation buffer 23. Send to the ventilator. In other words, the information transmission unit 18 of the first ventilation device 1 transmits the provisional total ventilation air volume Q1, the priority air volume P1, and the communication ID information I1 set in its own ventilation device to the second ventilation device 2. To do.

  Similarly, the information transmitting unit 18 of the second ventilator 2 sends the provisional total ventilation air volume Q2, the priority air volume P2, and the communication ID information I2 set in its own ventilator to the first ventilator 1. By transmitting, two-way communication is completed, and it can be recognized that two ventilation devices are connected to each other's information and the same building.

Next, the total ventilation air volume determination means 20 compares the information with the temporary total ventilation air volumes Q1 and Q2 set in each ventilator as shown in STEP 3, and the total ventilation air volume to be secured in the building is the largest value. Recognize with Q. That is, Q = Q2 = 170 [m ³ / h].

Next, in the first air volume determination means 21, information that two ventilation devices are connected in the same building recognized in STEP 2, and information of the total ventilation air volume Q = 170 [m ³ / h] required for the building. And the target air volume qn per ventilation apparatus is determined based on the information of the priority air volume Pn of the other ventilation apparatus received by the information receiving unit 19.

In the present embodiment, the maximum air volume capacity of the first ventilator 1 and the second ventilator 2 is 150 [m ³ / h], so that when two units are operated at the maximum capacity simultaneously, the maximum air volume = 150 × 2 = 300 [m ³ / h], and the necessary total ventilation air volume Q = 170 [m ³ / h] becomes an excessive air volume state of 130 [m ³ / h].

Therefore, the total ventilation air volume Q can be satisfied by simply dividing the necessary air volume of each ventilation device by dividing the necessary total ventilation air volume Q by the number N of ventilation devices installed. That is, the target air volume q1 of the first ventilator 1 and the target air volume q2 of the second ventilator 2 are

q1 = q2 = Q / N = 170/2 = 85 [m ³ / h]

It becomes.

  Next, the priority air volume Pn is confirmed. As shown in STEP 4, the first air volume determining means 21 equally distributes the remaining air volume obtained by removing the set priority air volume Pn from the total ventilation air volume Q in a ventilator in which the priority air volume Pn is not set. To determine the new airflow.

In this case, since the priority air volume Pn of the first ventilator 1 and the second ventilator 2 is both 0 [m ³ / h], there is no ventilator that operates with the priority air volume Pn.

Therefore, the remaining air volume Q _E excluding the air volume of the ventilator for which the priority air volume Pn is set is

Q _E = Q = 170 [m ³ / h]

Number N _E of the ventilator preferentially air volume Pn is not set,

N _E = N = 2 [unit]

It becomes. Since the target air volume qn of each ventilator distributes Q _E [m ³ / h] equally by N _E [stands], the first ventilator 1

q1 = Q _E / N _E = 170/2 = 85 [m ³ / h]

In the second ventilation device 2,

q2 = Q _E / N _E = 170/2 = 85 [m ³ / h]

It becomes.

That is, since the actual output air volumes q _R 1 and q _R 2 when operating at the target air volumes q 1 and q 2 are both about 85 [m ³ / h], the total ventilation air volume to be output is

q _R 1 + q _R 2 = 85 + 85 = 170 [m ³ / h]

Thus, the total ventilation air volume Q = 170 [m ³ / h] can be satisfied.

Next, a case where the actual output air volume q _R n becomes different from the target air volume qn will be described.

  For example, in a general construction state, one end of a duct 8 is connected to the indoor air discharge opening 5 of the main body case 3 of the ventilator, and the other end of the duct 8 is extended outside the room. The pressure loss increases or decreases depending on the length of the duct 8, and the predetermined predetermined air volume (target air volume qn) may not be ensured.

  If the ducts 8 of the first ventilator 1 and the second ventilator 2 are constructed with a length that is within the design allowable value, and the ability equivalent to the target airflow q1, q2 set for each ventilator can be demonstrated, there is a problem. Absent.

However, for example, the duct 8 of the second ventilation device 2 may be constructed with a length that is greater than the design allowable value, and only the ability of q2 = 50 [m ³ / h] may be exhibited.

The air volume detection means 22 detects the output air volume q _R n that the blower 6 is actually outputting, as shown in STEP 5. Then, if the actual output air volume q _R n is different from the target air volume qn, the output air volume q _R actually output to inform other ventilators that the target air volume qn cannot be realized. n is set as the priority air volume Pn of the self-ventilator.

In the above case, that is, when the second ventilator 2 can only exhibit the ability of q _R 2 = 50 [m ³ / h], the air volume detecting means 22 of the first ventilator 1 is the first ventilator 1. The actual output air volume q _R 1 = 85 [m ³ / h] is detected, and the priority air volume is set to P1 = 0 [m ³ / h] and stored in the calculation buffer. On the other hand, the air volume detection means 22 of the second ventilator 2 detects the actual output air volume q _R 2 = 50 [m ³ / h] of the second ventilator 2, and the priority air volume P2 = q _R 2 = 50. [M ³ / h] is set and stored in the calculation buffer.

However, if this is the case,

q _R 1 + q _R 2 = 85 + 50 = 135 [m ³ / h]

Therefore, the total ventilation air volume Q = 170 [m ³ / h] is not satisfied.

  In this state, returning to STEP 2 again, the information transmitting unit 18 of the first ventilation device 1 transmits its own communication ID, priority air volume P1 = 0, and provisional total ventilation air volume Q1 = 150. The information transmission unit of the second ventilation device 2 transmits its own communication ID, priority air volume P2 = 50, and provisional total ventilation air volume Q2 = 170. The information receiving unit 19 of each ventilation device receives this information.

Next, as shown in STEP 3, the total ventilation air volume determination means 20 determines the total ventilation air volume Q. Since the information of Q1 and Q2 has not changed, the total ventilation air volume Q remains at 170 [m ³ / h].

Next, as shown in STEP 4, the first air volume determining means 21 determines the air volume per ventilation device. Here, the priority air volume P2 = 50 [m ³ / h] is set in the second ventilation device 2. When the priority air volume Pn is not set, the first air volume determining means 21 does not set the value obtained by subtracting the sum of the priority air volumes Pn of other ventilators from the total ventilation air volume Q and the priority air volume (Pn = 0) The target air volume qn is calculated from the number of ventilation devices.

In other words, the first air volume determining means 21 of the first ventilation device 1 should cover the priority air volume P2 of the second ventilation device 2 from the total ventilation air volume Q and cover it with a ventilator for which the priority air volume Pn is not set. Air volume Q _E

Q _E = 170-50 = 120 [m ³ / h]

Number of ventilators without priority airflow N _E

N _E = 2-1 = 1 [unit]

Get. Therefore, the target air volume q1 of the first ventilator 1 is

q1 = Q _E / N _E = 120/1 = 120 [m ³ / h]

And decide.

  In the first air volume determination means 21 of the second ventilation device 2, since the self-priority air volume P2 is set, the target air volume q2 is operated as the priority air volume P2.

That is, when the priority air volume Pn is not set (= 0), the target air volume qn obtained from the number N of ventilators and the total ventilation air volume Q is obtained.

qn = Q / N

Drive on. On the other hand, when the priority air volume Pn is set (≠ 0), the vehicle is operated with the target air volume qn obtained first. (In this case, the second ventilator 2 is operated with the target air volume q2 = 85 [m ³ / h], but only q _R 2 = 50 [m ³ / h] is actually output. .)

Next, the blower 6 is driven with the new target air volumes q1 and q2, and the actual air volume is detected by the air volume detector 22 as shown in STEP5. Assuming that the first ventilator 1 is fully capable, the air volume detecting means 22 of the first ventilator 1 is the actual output air volume q _R 1 = 120 [m ³ / h] of the first ventilator 1. And the priority air volume is set to P1 = 0 [m ³ / h] and stored in the calculation buffer. On the other hand, the air volume detection means 22 of the second ventilator 2 detects the actual output air volume q _R 2 = 50 [m ³ / h] of the second ventilator 2, and the priority air volume P 2 = q _R 2 = 50 [ m ³ / h] is set and stored in the calculation buffer.

Therefore, q _R 1 + q _R 2 = 120 + 50 = 170 [m ³ / h], and the total ventilation air volume Q = 170 [m ³ / h] can be maintained.

  Moreover, although this embodiment demonstrated using 2 ventilation apparatuses, this embodiment can be applied also when the number increases, and the same effect is acquired.

  As described above, in the first embodiment of the present invention, the information on the total ventilation air volume determined by the total ventilation air volume determination means 20 and the installed ventilation apparatus are obtained by the mutual ventilation devices mutually acquiring information. It was set as the structure which judges and determines the own ventilation air volume from the priority air volume information which has priority over the set air volume. Therefore, even if the ventilation capacity of each ventilator is excessive or insufficient with respect to the total ventilation volume required for the entire building, the ventilation system can be adjusted so that it can increase or decrease its own air volume regardless of the master-slave relationship. It becomes possible to keep the airflow of the optimum.

  In the present embodiment, the provisional total ventilation air volume setting unit 13 is provided in each of the ventilators 1 and 2, but a total ventilation air volume setting device that sets the total ventilation air volume Q in the same information transmission network is provided. It may be provided.

(Embodiment 2)
The configuration of the ventilator according to the second embodiment of the present invention will be described with reference to FIGS.

  In addition, what has the same function as Embodiment 1 attaches | subjects the same code | symbol, and abbreviate | omits detailed description.

  In addition to the configuration of the ventilator of the first embodiment, the ventilator of the present embodiment has an external air volume setting that can set an air volume that is prioritized over the air volume determined by the first air volume determining means 21 (hereinafter, the externally set air volume En). Part 24 is provided.

  The external air volume setting unit 24 may be configured to be able to uniquely determine the external air volume En with respect to the input value. For example, as shown in FIG. 7, an external air volume setting section 24 is attached to an external air volume setting section mounting hole 25 provided in the ventilation hole 9 of the decorative board 10, and a human sensor, temperature sensor, humidity sensor, monoxide The configuration may be such that at least one of a carbon sensor, a carbon dioxide sensor, and an illuminance sensor is mounted, and the externally set air volume En is determined according to the detection state of the sensor.

  Further, as shown in FIG. 8, the decorative plate 10 is attached and detached, and an external air volume setting unit 24 is attached at a position where the user can easily check and operate, and as shown in FIG. A configuration may be adopted in which the air volume En can be set in multiple stages. Further, as shown in FIG. 9B, the configuration may be such that a set value that allows the externally set air volume En to be uniquely determined can be set in multiple stages.

  In the following description, the external air volume setting unit 24 is configured as shown in FIG. 7 and includes a human sensor 27 that detects the presence or absence of a person. When the human sensor 27 detects the external air volume setting unit 24, the maximum air volume of the ventilator is set externally. It is assumed that the configuration is set as the air volume En.

  10, the external air volume setting unit 24 is connected to the control unit 17, and the control unit 17 recognizes the external set air volume En set by the external air volume setting unit 24. To do.

  The control unit 17 includes a second air volume determining unit 26 therein. The second air volume determining unit 26 is implemented in the form of a program and includes the first air volume determining unit 21. When the external air volume is set by the external air volume setting unit 24, the second air volume determining unit 26 sets the target air volume qn of its own ventilator as the externally set air volume En. When the external air volume setting unit 24 does not set the external air volume En, the first air volume determining unit 21 determines the total ventilation air volume determining unit 20 as described in the first embodiment. The target air volume qn is determined from the information on the ventilation air volume Q and the priority air volume Pn of another ventilation device received by the information receiving unit 19, and the air volume of the blower 6 is adjusted.

In the following, assuming that two ventilators of the same specification with a maximum air volume capacity of 150 [m ³ / h] are installed in a building with a total floor area of 200 [m ² ], the first ventilator 1 and the second ventilator 1 The duct 8 of the ventilator 2 is constructed with a length within the design allowable value, and will be described as being capable of exhibiting an ability equivalent to the total ventilation air volume Q.

  In the above configuration, the air volume control operation of the ventilation device of the second embodiment will be described with reference to the flowchart shown in FIG.

  As shown in the flowchart of FIG. 11, the second air volume determination unit 26 performs the same operation as the first air volume determination unit 21 when the external air volume setting unit 24 does not set the external air volume setting unit 24. In the state, the flow is equivalent to STEP 1 to STEP 5 of the first embodiment. Therefore, the description in the case where the external air volume setting unit 24 does not set the external air volume En is omitted.

  And about the characteristic operation | movement of the 2nd air volume determination means 26, the human sensor 27 of the external air volume setting part 24 of the 1st ventilation apparatus 1 is in a detection state, and the external air volume setting part 24 of the 2nd ventilation apparatus 2 is detected. A case where the human sensor 27 is in a non-detection state will be described.

  As shown in STEP 6, when the human sensor 27 of the external air volume setting unit 24 is in a detection state, the maximum air volume of the ventilator is set as the externally set air volume En in order to forcibly discharge dirty air to the outdoors. The second air volume determination means 26 receives the external air volume En from the external air volume setting unit 24, sets the value of the external air volume En as the target air volume qn of its own ventilator, and uses this external air volume En as the priority air volume. Set as Pn.

That is, the external air volume setting unit 24 of the first ventilation device 1 sets 150 [m ³ / h], which is the maximum air volume capacity, as the external air volume E1. In response to this, the second air volume determining means 26 sets the target air volume q1 = E1 = 150 [m ³ / h] of the self-ventilator and sets the priority air volume P1 = E1 = 150 [m ³ / h]. . On the other hand, the external air volume setting unit 24 of the second ventilator 2 does not set the external air volume E2 (E2 = 0 [m ³ / h]), so the second air volume determining means 26 is determined in STEP4. The target air volume q2 of the self-ventilator is determined. That is, the air volume of the second ventilation device 2 remains q2 = 85 [m ³ / h] and the priority air volume P2 = 0 [m ³ / h].

In STEP 5, the first ventilator 1 is operated at the maximum air volume, and the actual air volume detected by the air volume detector 22 of the first ventilator 1 is q _R 1 = 150 [m ³ / h], and the second ventilator. The actual air volume detected by the second air volume detector 22 is q _R 2 = 85 [m ³ / h]. In this state, the total air volume of the first ventilator 1 and the second ventilator 2 is

q _R 1 + q _R 2 = 150 + 85 = 235 [m ³ / h]

Thus, the air flow excess state of 65 [m ³ / h] is obtained with respect to the total ventilation air flow Q = 170 [m ³ / h] required for the building.

However, as shown in STEP 4 of the first embodiment, the priority air volume P1 = 150 [m ³ / h] of the first ventilation device 1 received by the information receiving unit 19 in the second ventilation device 2 is set. Therefore, the target air volume q2 of the second ventilation device 2 is

q2 = Q _E / N _E
= (170-150) / (2-1)
= 20/1 = 20 [m ³ / h]

To be corrected.

Therefore, the total air volume of the first ventilator 1 and the second ventilator 2 is

q _R 1 + q _R 2 = 150 + 20 = 170 [m ³ / h]

Thus, the total ventilation air flow Q required for the building Q = 170 [m ³ / h] can be maintained.

Further, when a person leaves and the human sensor 27 of the external air volume setting unit 24 of the first ventilation device 1 is not detected, the external air flow setting E1 of the first ventilation device 1 is 0 [m ³ / h], and there is no ventilator in which the externally set air volume En is set. Therefore, in STEP4, the engine is operated at q1 = q2 = 85 [m ³ / h].

Further, the human sensor 27 of each of the first ventilator 1 and the second ventilator 2 detects and both externally set airflows become the maximum ventilation airflow (E1 = E2 = 150 [m ³ / h]). In order to forcibly discharge the dirty air in each space to the outside, the vehicle is operated at q1 = q2 = 150 [m ³ / h] with priority given to ensuring the ventilation air volume. In this case, although the ventilation airflow is excessive for a certain time, the human sensor 27 is not detected and after dirty air is discharged, the vehicle is operated at q1 = q2 = 85 [m ³ / h] The total ventilation air volume Q = 170 [m ³ / h] is maintained.

Although this embodiment has been described using two ventilation devices, the same effect can be obtained when the number of ventilation devices increases.

  Moreover, in this Embodiment, when the human sensor 27 of the external air volume setting part 24 was in the detection state, it demonstrated as a structure which determines the maximum air volume of a ventilator as the external setting air volume En, However, It is limited to this. For example, when the sensor detects, it is good also as a structure which determines the air volume smaller than the maximum air volume as an external setting air volume En, or stops a fan.

  As described above, in the second embodiment of the present invention, the mutual ventilation devices acquire information from each other and determine their own target air volume qn. That is, the second air volume determining means 26 is self-determined from the total ventilation air volume Q determined by the total ventilation air volume determining means 20, the priority air volume Pn of the installed ventilator, and the externally set air volume En determined by the external air volume setting unit 24. It was set as the structure which judges and determines the target air volume qn. Therefore, when the externally set air volume En is set and the air volume needs to be increased for a certain period of time, the ventilator increases or decreases its target air volume qn regardless of the master-slave relationship with respect to the total ventilation air volume Q required for the entire building. Therefore, it is possible to keep the air volume of the entire building optimal.

(Embodiment 3)
The configuration of the ventilator according to Embodiment 3 of the present invention will be described with reference to FIGS.

  In addition, what has the same function as Embodiment 1 attaches | subjects the same code | symbol, and abbreviate | omits detailed description.

  In the ventilator according to the present embodiment, in the configuration of the ventilator according to the first embodiment, the calculation buffer 23 stores in advance the maximum air volume Sn (in some cases, the rated air volume) of the self-ventilator. Further, the information transmitting unit 18 and the information receiving unit 19 are configured to transmit and receive the maximum air volume Sn of their own ventilator between the ventilators in addition to the communication ID for identifying the communication partner and the information on the priority air volume Pn. Is.

  Further, in the first air volume determining means 21 of the first embodiment, the air volume of the ventilator for which the priority air volume is not set is given priority to the air volume excluding the air volume of the ventilator for which the priority air volume is set from the total ventilation air volume. The air volume was evenly distributed by the number of ventilators that were not set. In the present embodiment, as shown in FIG. 12, in place of the first air volume determining means 21 of the first embodiment, a third air volume determining means 28 for setting the air volume according to the maximum air volume of the ventilator is provided. Yes. The third air volume determining means 28 determines its own air volume by the following method.

Hereinafter, in a building having a total floor area of 200 [m ² ], a first ventilator 1 having a maximum air volume capacity of 180 [m ³ / h] and a second ventilator 2 having a maximum air volume capacity of 75 [m ³ / h]. A description will be given assuming that is installed.

  In the above configuration, the air volume control operation of the ventilator will be described with reference to the flowchart shown in FIG.

  The flow control operation flow of the ventilator can be explained by the following five steps.

That is, in the calculation buffer 23, information on the temporary total ventilation air volume Qn set by the self ventilation device, information on the initial priority air flow amount Pn (= 0 [m ³ / h]), and the maximum air flow of the self ventilation device. A flow of accumulating Sn (STEP 7);
The information accumulated in the calculation buffer is transmitted to another ventilator via the information transmitter 18 and the information is received from the other ventilator via the information receiver 19 (STEP 8).
A flow (STEP 3) showing the total ventilation air volume judgment means 20,
A flow (STEP 9) showing the third air volume determining means 28;
And a flow (STEP 5) showing the air volume detection means 22.

  Details will be described below.

When power is supplied to the first ventilator 1 and the second ventilator 2, as shown in STEP 7, the temporary total ventilation air volume Qn set by the temporary total ventilation air volume setting unit 13 is set in each ventilator. Are stored in the buffer 23 for calculation. Also, information on the initial priority air volume Pn (= 0 [m ³ / h]) is accumulated. Further, the maximum air volume Sn of the ventilator stored in advance in the calculation buffer 23 is recognized.

Here, for example, the temporary total ventilation air volume setting unit 13 is configured to directly set the temporary total ventilation air volume Qn as shown in FIG. In the present embodiment, the temporary total ventilation air volume setting unit 13 of the first ventilator 1 sets the temporary total ventilation air volume Q1 = 150 [m ³ / h]. In the ventilation air volume setting unit 13, the provisional total ventilation air volume Q 2 = 170 [m ³ / h] is set, and these pieces of information are stored in the calculation buffer 23.

  The communication ID of the first ventilator 1 is I1 = 101, the communication ID of the second ventilator 2 is I2 = 102, and is stored in the calculation buffer 23 of each ventilator.

Further, as the first initial priority airflow Pn of ventilator 1, P1 = 0 [m ³ / h], as the preferred air volume of the second ventilator 2 initial, calculate P2 = 0 [m ³ / h] Is stored in the buffer 23.

Further, as the maximum air volume Sn of the ventilator stored in the calculation buffer 23 in advance, the first ventilator 1 has the maximum air volume S1 = 180 [m ³ / h], and the second ventilator 2 has the maximum air volume S2 =. 75 [m ³ / h] is recognized.

  Next, as shown in STEP 8, the information transmission unit 18 of each ventilator stores the temporary total ventilation air volume Qn, the priority air volume Pn, the maximum air volume Sn of the ventilator, and the communication ID accumulated in the calculation buffer 23. Send information to other ventilators.

  That is, the information transmission unit 18 of the first ventilation device 1 obtains the provisional total ventilation air volume Q1, the priority air volume P1, the maximum air volume S1 of the ventilation device, and the communication ID information I1 set in its own ventilation device. Transmit to the second ventilator 2.

  Similarly, the information transmission unit 18 of the second ventilator 2 includes the provisional total ventilation air volume Q2, the priority air volume P2, the maximum air volume S2 of the ventilator, and the communication ID information I2 set in the self-ventilator. Is transmitted to the first ventilator 1, the two-way communication is completed, and it can be recognized that two ventilators are connected to each other and the same building.

Next, as shown in STEP 3, the total ventilation air volume determination means 20 compares the information with the temporary total ventilation air volumes Q1 and Q2, and recognizes the larger value as the total ventilation air volume Q that should be secured in the building. That is, Q = Q2 = 170 [m ³ / h].

Next, in the third air volume determination means 28, information that two ventilation devices are connected in the same building recognized in STEP 8, and information on the total ventilation air volume Q = 170 [m ³ / h] necessary for the building. Then, based on the priority air volume Pn of the other ventilation devices received by the information receiving unit 19 and the maximum air volume Sn of each ventilation device, the air volume per ventilation device is determined.

  As shown in STEP 9, the third air volume determining means 28 excludes the air volume of other ventilators for which the priority air volume Pn is set from the total ventilation air volume Q. Next, a value obtained by multiplying the remaining air volume by the ratio of the maximum air volume Sn of the own ventilator to the sum of the maximum air volumes Sn of the respective ventilators is determined as a new target air volume qn.

In addition, the self-ventilator does not set its own preferential air volume, and is set to 0 [m ³ / h].

In this case, since the priority air volume of the first ventilator 1 and the second ventilator 2 is both 0 [m ³ / h], there is no ventilator that operates with the priority air volume.

Therefore, with respect to the remaining air volume Q _E = Q = 170 [m ³ / h] excluding the air volume of the ventilator for which the priority air volume is set, the own ventilator occupies the sum of the maximum air volume Sn of each ventilator. Multiplying the ratio of the maximum air volume Sn is set as the target air volume qn of each ventilator. That is, the target air volume q1 of the first ventilator 1 is

q1 = S1 / (S1 + S2) × Q
= 180 / (180 + 75) × 170
= 120 [m ³ / h]

The target air volume q2 of the second ventilation device 2 is

q2 = S2 / (S1 + S2) × Q
= 75 / (180 + 75) × 170
= 50 [m ³ / h]

It becomes.

Moreover, since both the 1st ventilation apparatus 1 and the 2nd ventilation apparatus 2 perform the same operation | movement as the 3rd air volume determination means 28, the priority air volume Pn is not set. Therefore, P1 = P2 = 0 [m ³ / h] is stored in the calculation buffer 23 as the priority air volume of the first ventilation device 1 and the second ventilation device 2.

Therefore, q _R 1 + q _R 2 = 120 + 50 = 170 [m ³ / h], and the total ventilation air volume Q = 170 [m ³ / h] can be satisfied.

  In the air volume detection means 22, when the air volume actually output by the blower 6 is smaller than the own air volume set in the blower 6 and the priority air volume is set, the air volume is adjusted in STEP 9, Since this operation is the same as STEP 4 in the first embodiment, a description thereof will be omitted.

  In the present embodiment, the configuration is such that the air volume according to the maximum air volume of the ventilator can be set with respect to the configuration of the ventilator of the first embodiment, but the configuration of the ventilator of the second embodiment. Similarly, the air flow can be set according to the maximum air flow of the ventilator.

  As described above, in the third embodiment of the present invention, the information on the total ventilation air volume determined by the total ventilation air volume determination means 20 and the installed ventilation apparatus are obtained by the mutual ventilation apparatuses acquiring information from each other. The configuration is such that the self-ventilation airflow is judged from the priority airflow information prioritizing the set airflow and the maximum airflow of the ventilator, and the operation is performed. Therefore, when ventilators with different maximum airflows are installed with respect to the total ventilation airflow required for the entire building, even if the ventilation capacity of each ventilator is excessive or insufficient, the ventilators are self-independent The air volume of the entire building can be kept optimal by adjusting the air volume so that it can be increased or decreased according to the maximum air volume of the ventilation device.

  As described above, the present invention can optimally provide the necessary air volume in the building because the ventilation device constitutes a network, so that the present invention is applied not only for home use but also for offices, stores, etc. I can do it.

  Therefore, utilization as a ventilation fan installed on the ceiling is expected.

DESCRIPTION OF SYMBOLS 1 1st ventilation apparatus 2 2nd ventilation apparatus 3 Main body case 4 Indoor air intake opening part 5 Indoor air discharge | emission opening part 6 Blower 7 Ceiling board 8 Duct 9 Ventilation hole 10 Decoration board 11 Attachment spring 12 Attachment part 13 Temporary total Ventilation air volume setting unit 14 Commercial power supply 15 Power supply circuit 16 Drive IC
DESCRIPTION OF SYMBOLS 17 Control part 18 Information transmission part 19 Information receiving part 20 Total ventilation air volume judgment means 21 1st air volume determination means 22 Air volume detection means 23 Calculation buffer 24 External air volume setting part 25 External air volume setting part attachment hole 26 2nd air volume determination means 27 Human sensor 28 Third air volume determination means

Claims (5)

A ventilation device comprising at least two ventilation devices in the same building, each connected by a single information transmission network, and constituting a ventilation system that keeps the ventilation air flow in the building constant,
Each ventilator is
An information transmission unit for transmitting information to other ventilation devices via the information transmission network;
An information receiving unit for receiving information from other ventilation devices via the information transmission network;
A control unit that determines its own operation,
The controller is
A total ventilation air volume judging means for judging a total ventilation air volume necessary for the building;
First air volume determining means for determining its own target air volume so as to maintain the total ventilation air volume from the information of the other ventilation device received by the information receiving unit;
When the output air volume actually output by the own ventilator is detected and the output air volume is different from the target air volume, the obtained output air volume is used as the priority air volume and the information is transmitted to the other ventilators. Ventilation device comprising air volume detection means for informing through a section. The control unit further includes an external air volume setting unit that commands an operation air volume,
When the operating air volume is set in the external air volume setting unit, it is instructed to operate with the set operating air volume,
The ventilator according to claim 1, further comprising second air volume determining means for notifying the other ventilator through the information transmitting unit as the set operating air volume as a priority air volume. The ventilator according to claim 1 or 2, wherein the first air volume determining means uses a value obtained by dividing the total ventilation air volume by the number of the ventilators connected in the same information transmission network as its target air volume. The information transmitting unit and the information receiving unit transmit and receive information on the maximum air volume of the self-ventilator,
The ventilator according to claim 1 or 2, wherein the first air volume determining means sets a target air volume by multiplying the total ventilation air volume by a ratio of the maximum air volume of each ventilator. A temporary total ventilation air volume setting unit for setting the temporary total ventilation air volume of the building;
The information transmission unit transmits the provisional total ventilation air volume as transmission information to the other ventilation device,
The said total ventilation air volume judgment means judges the maximum thing among the said temporary total ventilation air volume obtained via the said information receiving part as the said total ventilation air volume required for the said building. The ventilation device described.

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