JP6286665B2 - Supply / exhaust ventilator - Google Patents

Description

  The present invention relates to a supply / exhaust type ventilator that takes in air from outside and exhausts indoor air to the outside.

  The prior art will be described with reference to FIG. Conventionally, this type of supply / exhaust type device has an air supply air passage 102 and an exhaust air passage 103 in the main body 101, an air supply fan 104, an air supply motor 105 in the air supply air passage 102, and an air exhaust air passage 103. In addition, a supply / exhaust type ventilator including an exhaust fan 106 and an exhaust motor 107 is known (for example, see Patent Document 1).

JP-A-4-13035

  Such a conventional supply / exhaust type ventilator performs control to stop or start the supply motor and the exhaust motor at the same time when the operation is stopped or at the start of the operation. When performing, there existed a subject which the vibration by a motor becomes remarkable.

  The present invention solves the above-mentioned problem, and in a supply / exhaust type ventilation apparatus having an air supply motor and an exhaust motor, either one of the air supply motor and the exhaust motor is stopped when the operation is stopped or when the operation is started. The purpose is to reduce vibration by starting / stopping.

It has a main body provided with an indoor suction port, an indoor discharge port, an outdoor suction port and an outdoor discharge port,
In this body,
An air supply passage for communicating outdoor air from the outdoor suction port to the indoor discharge port;
An exhaust air passage for communicating indoor air from the indoor suction port to the outdoor discharge port;
An air supply fan and an exhaust fan disposed in each of the air supply air path and the exhaust air path;
An air supply motor for driving the air supply fan;
A supply / exhaust type ventilation device provided with an exhaust motor for driving the exhaust fan,
A controller for controlling the air supply motor and the exhaust motor;
A heat exchange element that is arranged at the intersection of the supply air passage and the exhaust air passage to exchange heat of outdoor air and indoor air,
When the operation is stopped, the control unit controls to stop the exhaust motor after stopping the air supply motor , thereby achieving the intended purpose.

Further, the present invention has an indoor side suction port and indoor side discharge port, the body provided with the outdoor suction port and the outdoor side discharge port,
In this body,
An air supply passage for communicating outdoor air from the outdoor suction port to the indoor discharge port;
An exhaust air passage for communicating indoor air from the indoor suction port to the outdoor discharge port;
An air supply fan and an exhaust fan disposed in each of the air supply air path and the exhaust air path;
An air supply motor for driving the air supply fan;
A supply / exhaust type ventilation device provided with an exhaust motor for driving the exhaust fan,
A controller for controlling the air supply motor and the exhaust motor;
A heat exchange element that is arranged at the intersection of the supply air passage and the exhaust air passage to exchange heat of outdoor air and indoor air,
At the start of operation, the control unit controls to start the air supply motor after starting the exhaust motor , thereby achieving the intended purpose.

According to the present invention, an air supply motor for driving an air supply fan and an exhaust motor for driving an exhaust fan are provided in one main body, and the air supply motor is stopped before the exhaust motor when operation is stopped. Thus, it is possible to provide a supply / exhaust type ventilation device that reduces vibrations when the motor is stopped. In addition, it is possible to inhibit the inflow of hot air or cold air outside the room and reduce discomfort.

Further, according to the present invention, there is provided an air supply / exhaust type ventilator that reduces vibration at the time of motor start / stop by controlling the air supply motor to be started after the exhaust motor is started at the start of operation. it can. Further, the heat and coldness of the outside air flowing into the room can be reduced.

Configuration schematic diagram of supply / exhaust ventilator according to Embodiment 1 and Embodiment 2 of the present invention (A) Control flowchart at the time of operation stop of the supply / exhaust type ventilator of Embodiment 1, (b) Control flowchart at the time of operation start (A) Control flowchart at the time of operation stop of the supply / exhaust type ventilator according to Embodiment 2, (b) Control flowchart at the time of operation start Configuration diagram of conventional supply / exhaust ventilator

The supply / exhaust type ventilator according to claim 1 of the present invention has a main body provided with an indoor suction port, an indoor discharge port, an outdoor suction port, and an outdoor discharge port. An air supply passage that communicates air from the outdoor suction port to the indoor discharge port, an exhaust air passage that communicates indoor air from the indoor suction port to the outdoor discharge port, the air supply passage, and the air supply passage A supply / exhaust type ventilation apparatus comprising an air supply fan and an exhaust fan disposed in each of the exhaust air paths, an air supply motor for driving the air supply fan, and an exhaust motor for driving the exhaust fan. There,
A controller for controlling the air supply motor and the exhaust motor, and a heat exchange element disposed at an intersection of the air supply air path and the exhaust air path to exchange heat of outdoor air and room air, When the operation is stopped, the control unit controls the exhaust motor after stopping the supply motor . Thereby, there exists an effect which reduces the vibration at the time of a motor stop. Furthermore, by controlling the motor one by one, there is an effect of reducing the load on the switching power supply of the control unit.

  In addition, when the operation is stopped, the control unit decelerates or stops the air supply motor, and then controls the exhaust motor to stop, so that the air flowing into the room from the indoor outlet is completely operated. The effect of reducing discomfort is maintained by maintaining the heat exchange performance until it stops.

In addition, it has a main body provided with an indoor suction port, an indoor discharge port, an outdoor suction port and an outdoor discharge port, and outdoor air is passed from the outdoor suction port to the indoor discharge port in the main body. An air supply passage that communicates with the interior air, an exhaust air passage that communicates indoor air from the indoor suction port to the outdoor discharge port, and an air supply fan and exhaust that are disposed in the supply air passage and the exhaust air passage, respectively. A supply / exhaust type ventilator including a fan, an air supply motor for driving the air supply fan, and an exhaust motor for driving the exhaust fan,
A controller for controlling the air supply motor and the exhaust motor, and a heat exchange element disposed at an intersection of the air supply air path and the exhaust air path to exchange heat of outdoor air and room air,
At the start of operation, the control unit controls the air supply motor to start after the exhaust motor is started . Thereby, there exists an effect which reduces the vibration at the time of motor starting. Furthermore, by controlling the motor one by one, there is an effect of reducing the load on the switching power supply of the control unit.

  In addition, after the controller starts the exhaust motor at the start of operation, the air supply air from the outside performs heat exchange with the exhausted air by controlling the air supply motor to start. Since the air is supplied to the room from the inside, there is an effect of reducing the heat and coldness of the air flowing into the room from the indoor discharge port.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
The supply / exhaust ventilation device 1 according to the first embodiment of the present invention is installed in the back of a ceiling in a building, in a side wall, or under the floor.

  FIG. 1 shows the configuration. The main body 2 has a rectangular parallelepiped shape and is installed under the floor.

  Also, one of the side surfaces 3 of the main body 2 has an outdoor suction port 4 and an outdoor discharge port 5. On the opposite surface of the side surface 3, an indoor suction port 6 and an indoor discharge port 7 are provided.

  Inside the main body 2, an air supply path 8 through which the outside air introduced from the outdoor suction port 4 communicates indoors with the indoor discharge port 7, and indoor air from the indoor suction port 6 communicates with the outdoor discharge port 5. An exhaust air passage 9 is formed.

  The supply air path 8 and the exhaust air path 9 are partitioned by partition plates 10 and 11.

  The supply air passage 8 and the exhaust air passage 9 are provided with a sirocco-type supply fan 12 and an exhaust fan 13, respectively. The air supply fan 12 and the exhaust fan 13 are connected to an air supply motor 14 and an exhaust motor 15, respectively.

  Further, a heat exchange element 16 for exchanging the heat of the room air and the outside air is disposed at a position where the supply air path 8 and the exhaust air path 9 intersect. The heat exchange element 16 has a function of recovering heat of the exhaust air from the room and supplying it to the supply air from the outside.

  Further, a control unit 17 for controlling the air supply motor 14 and the exhaust motor 15 is provided. The operation of the control unit 17 will be described using the flowchart shown in FIG.

  FIG. 2A is a flowchart showing the operation when the operation is stopped in the present embodiment. As shown in FIG. 2A, when there is a request to stop the operation, the control unit 17 that controls the air supply motor 14 and the exhaust motor 15 first decelerates or stops the air supply motor 14 in STEP 11. Let

  Next, the control part 17 confirms that the air supply motor 14 has stopped in STEP12. After confirming that the air supply motor 14 has stopped, the control unit 17 decelerates or stops the exhaust motor 15 in STEP 13. Alternatively, in STEP 12, it may be confirmed that the air supply motor 14 has decelerated to an arbitrary threshold rotation speed, and in STEP 13, the exhaust motor 15 may be decelerated or stopped.

After confirming that the exhaust motor 15 has stopped in STEP 14, the operation is stopped by stopping the control unit 17.

  In this way, the motor stop operation is performed separately, and vibrations caused by the motor when operation is stopped can be dispersed and reduced.

  Further, when either the supply motor 14 or the exhaust motor 15 is stopped, heat exchange is not performed. Therefore, the supply motor 14 is stopped before the exhaust motor 15 to stop the air flowing into the room from the indoor discharge port 7 via the outdoor suction port 4. In this way, it is possible to inhibit the inflow of hot air or cold air outside the room and reduce discomfort.

  Moreover, FIG.2 (b) is a flowchart which shows the operation | movement at the time of the driving | operation start in this Embodiment. As shown in FIG. 2B, when there is an operation start request, the control unit 17 that controls the air supply motor 14 and the exhaust motor 15 first activates the exhaust motor 15 in STEP 21. Next, the control unit 17 confirms that the exhaust motor 15 is started in STEP22. After confirming that the exhaust motor 15 is activated, in STEP 23, the control unit 17 activates the air supply motor 14. Alternatively, in STEP 23, the air supply motor 14 may be started after the exhaust motor 15 has accelerated to an arbitrary threshold rotational speed.

  After confirming that the air supply motor 14 has started in STEP 24, the control unit 17 controls various operations. In this way, the operation at the time of starting the motor is divided into two times, and the vibration caused by the motor at the time of starting the operation can be dispersed and reduced.

  In addition, after the control unit 17 activates the exhaust motor 15 at the start of operation, the air supply motor 14 is controlled so as to activate the air supply motor 14, so that the air supplied from the outside passes through the indoor suction port 6. After heat exchange is performed through the heat exchange element 16 and the air exhausted from the outer discharge port 5 to the outside, the air flows into the room. Therefore, the heat and coldness of the outside air flowing into the room can be reduced.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIGS. Also in this embodiment, the configuration of the device is the same as that of the first embodiment shown in FIG.

  As shown in FIG. 3, the characteristic part of the second embodiment is that the air supply motor 14 is stopped before the exhaust motor 15 and the air supply motor 14 is started before the exhaust motor 15. It is control to do. Hereinafter, the second embodiment will be described with reference to the flowchart shown in FIG.

  In FIG. 3A, when there is an operation stop request, the control unit 17 that controls the air supply motor 14 and the exhaust motor 15 first decelerates or stops the exhaust motor 15 in STEP 31.

  Next, in STEP 32, the controller 17 confirms that the exhaust motor 15 has stopped. After confirming that the exhaust motor 15 has stopped, the control unit 17 decelerates or stops the supply motor 14 in STEP 33. Alternatively, in STEP 32, it may be confirmed that the exhaust motor 15 has decelerated to an arbitrary threshold rotational speed, and in STEP 33, the air supply motor 14 may be decelerated or stopped.

  After confirming that the air supply motor 14 has stopped in STEP 34, the operation is stopped by stopping the control unit 17.

  In this way, the motor stop operation is performed separately, and vibrations caused by the motor when operation is stopped can be dispersed and reduced.

  In addition, when the operation is stopped, the exhaust motor 15 is decelerated or stopped before the air supply motor 14 to maintain the room at a positive pressure. Thus, by making the room into a positive pressure, there is an effect of preventing dirt flowing into the room through a gap such as a wall surface.

  FIG. 3B is a flowchart showing the operation at the start of operation in the present embodiment. As shown in FIG. 3B, when there is an operation start request, the control unit 17 that controls the air supply motor 14 and the exhaust motor 15 first activates the air supply motor 14 in STEP 41. . Next, the control unit 17 confirms that the air supply motor 14 is started in STEP42. After confirming that the air supply motor 14 has been started, in STEP 43, the control unit 17 starts the exhaust motor 15. Alternatively, in STEP 42, the exhaust motor 15 may be started after the air supply motor 14 has accelerated to an arbitrary threshold rotational speed.

  After confirming that the exhaust motor 15 is activated in STEP 44, the control unit 17 controls various operations. In this way, the operation at the time of starting the motor is divided into two times, and the vibration caused by the motor at the time of starting the operation can be dispersed and reduced.

  In addition, the controller 17 activates the air supply motor 14 prior to the exhaust motor 15 at the time of starting the operation, so that there is an effect of making the room have a positive pressure and preventing dirt flowing into the room from a gap such as a wall surface.

  The air conditioner according to the present invention reduces vibrations by controlling the operation order of the motor when the operation is stopped and when the operation is started, and is a simultaneous supply / exhaust type used in ordinary houses and the like. Useful for air conditioners.

DESCRIPTION OF SYMBOLS 1 Supply / exhaust type ventilator 2 Main body 3 Side surface 4 Outer side suction port 5 Outer side discharge port 6 Indoor side suction port 7 Indoor side discharge port 8 Supply air path 9 Exhaust air path 10 Partition plate 11 Partition plate 12 Supply fan 13 Exhaust Fan 14 Air supply motor 15 Exhaust motor 16 Heat exchange element 17 Control unit 101 Main body 102 Supply air passage 103 Exhaust air passage 104 Supply fan 105 Supply motor 106 Exhaust fan 107 Exhaust motor

Claims (2)

It has a main body provided with an indoor suction port, an indoor discharge port, an outdoor suction port and an outdoor discharge port,
In this body,
An air supply passage for communicating outdoor air from the outdoor suction port to the indoor discharge port;
An exhaust air passage for communicating indoor air from the indoor suction port to the outdoor discharge port;
An air supply fan and an exhaust fan disposed in each of the air supply air path and the exhaust air path;
An air supply motor for driving the air supply fan;
A supply / exhaust type ventilation device provided with an exhaust motor for driving the exhaust fan,
A controller for controlling the air supply motor and the exhaust motor;
A heat exchange element that is arranged at the intersection of the supply air passage and the exhaust air passage to exchange heat of outdoor air and indoor air,
A supply / exhaust type ventilator that controls the exhaust unit to stop after the control unit stops the supply motor when the operation is stopped . It has a main body provided with an indoor suction port, an indoor discharge port, an outdoor suction port and an outdoor discharge port,
In this body,
An air supply passage for communicating outdoor air from the outdoor suction port to the indoor discharge port;
An exhaust air passage for communicating indoor air from the indoor suction port to the outdoor discharge port;
An air supply fan and an exhaust fan disposed in each of the air supply air path and the exhaust air path;
An air supply motor for driving the air supply fan;
A supply / exhaust type ventilation device provided with an exhaust motor for driving the exhaust fan,
A controller for controlling the air supply motor and the exhaust motor;
A heat exchange element that is arranged at the intersection of the supply air passage and the exhaust air passage to exchange heat of outdoor air and indoor air,
A supply / exhaust ventilator that controls to start the air supply motor after the control unit starts the exhaust motor at the start of operation .

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