JPH0444981Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention can exhaust indoor air through a heat exchanger using a switching damper that has a heat exchanger and is opened and closed by a drive device. This invention relates to a ventilation system that can also bypass and exhaust indoor air.

[Prior Art] Heat exchange ventilation devices, which are also referred to as air conditioning ventilation devices and have configurations such as those disclosed in U.S. Pat. Some have a switching damper that switches the path. In this type of ventilation system, a switching damper that opens one air passage and closes the other air passage is connected to a drive device including a motor via a rod, and is opened and closed by the drive device. There is. The main body has an inspection port on one side, and the built-in heat exchanger can be installed and removed through this port. The drive device is also mounted inside the main body in a position and manner that allows it to be engaged and removed through the inspection port where the heat exchanger is removed.

[Problems to be solved by the invention] In the above-mentioned conventional ventilation system, the mounting structure of the drive device that moves the switching damper does not cause any problems in attaching and detaching it, but the power supply that supplies power to the motor of the drive device Since the cord is connected with a plug-in terminal in the middle, the drive device cannot be removed unless you grope through the narrow inspection opening to find the plug-in terminal and pull it out with one hand. There were problems such as clogging and the trouble of attaching and detaching the power cord when inspecting the drive unit, which could easily result in damage to the power cord.

This invention was made in order to solve the conventional problems, and the purpose is to obtain a ventilation system in which the driving device of the switching damper can be easily attached and detached from the inspection port related to the heat exchanger without causing damage. It is something.

[Means for Solving the Problems] The ventilation system according to this invention includes a heat exchanger for exchanging heat between indoor air and outside air taken in and discharged by the blower, and a a first air passage that discharges air to the outside air side through the heat exchanger; a second air passage that exhausts the indoor air to the outside air side without passing through the heat exchanger; The ventilator is equipped with a switching damper that selectively closes the ventilation passage of No. 2 and a removable drive device that is responsible for the closing operation of the switching damper, and an inspection hole through which the drive device can be inserted and removed on the surface of the ventilation device main body. and fixing a receiving side of a connector connected to the motor of the device to a part of the inspection port side of the drive device,
The power cord wired to the ventilation apparatus main body side is provided with an insertion side for the connector, and power is supplied to the motor by connecting the connector.

[Function] In this invention, when the drive device that closes and operates the switching damper that selectively closes the first air duct and the second air duct is removed from the inspection port, the disconnection of the power cord pulls the insertion side of the connector. All you have to do is release it, and since the receiving side of the connector is on the inspection port side of the drive device, you can remove it even if you have to grope.

[Embodiment] A heat exchange device as an embodiment of the present invention shown in each figure from FIG. 1 to FIG. A cross-flow type heat exchanger 4 has a ventilation passage 2 and an air supply ventilation passage 3 for taking in outside air and supplying air into the room so that they intersect so that they can exchange heat while remaining independent. It is structured in a box shape. An exhaust blower 5 that forms an exhaust flow in the exhaust air passage 2 and an air supply blower 6 that forms a supply air flow in the air supply air passage 3 are assembled into the main body 1.
The exhaust air passage 2 branches into two air passages 8 and 9 at a portion in front of the heat exchanger 4 immediately downstream of the exhaust suction port 7, which is its inlet end. That is, an air passage 8 serves as a first air passage for discharging indoor air to the outside air side through the heat exchanger 4, and an air passage 9 serves as a second air passage for discharging indoor air to the outside air side without passing through the heat exchanger 4. be. A switching damper 1 rotated by a drive device 11 mainly composed of a drive motor 10 is installed at a branching part where the ventilation path 2 branches into the air paths 8 and 9.
2 is pivotally mounted. The switching damper 12 has a rotating part in which a cushion material for airtight maintenance is stretched on one side of a damper plate, and the cushion material side contacts the opening of the air passage 9, which is a bypass, and closes the opening. When the air passage 8 is closed, the air passage 8 is opened, and when the air passage 8 is rotated toward the air passage 8 side and the air passage 8 is closed by contacting the guide plate 30 in the air passage 8, the air passage 9 is opened. It is installed in the road 2. An inspection opening 13 with a square lid is formed in the center of one side of the main body 1, through which the heat exchanger 4 can be pulled out from the small end thereof, or inserted and removed from the main body 1 for maintenance and inspection. The driving device 11 is connected to a switching damper 12 by a crank 14 and a rod 15, and is connected to a pair of channel members 16 installed in the main body 1 so that it can be attached to and removed from the main body 1 by inserting and removing it from the inspection port 13 side. It is attached so that it can slide. A power cord 17 for supplying power to the drive motor 10 of the drive device 11 is connected to a connector 18 that can be inserted and removed in the middle. The receiving side of the connector 18 is fixed to the surface of the drive device 11 on the inspection port 13 side, and the insertion side of the connector 18 is provided to the power cord 17 wired to the main body side. The rod 15 connecting the drive device 11 and the switching damper 12 can be removed from the crank 14 together with the bush 20 by removing the thumbscrew 19.

Therefore, the heat exchange ventilation system of this example is configured such that the switching damper 12 is rotated by the driving device 11, so that the ventilation path 2 is
can be switched to the air passage 8 side or the air passage 9 side, thereby allowing heat exchange ventilation to exchange heat between the supply air flow and exhaust air flow, and normal ventilation that does not exchange heat between the supply air flow and the exhaust air flow. Both can be easily and selectively implemented. Further, maintenance and inspection of the drive device 11 can be easily carried out. That is, by inserting one hand through the inspection port 13 where the heat exchanger 4 has been removed, find the connector 18 of the power cord 17, and pull it out, then pull out the drive device 11 and cut off the rod 15 to completely disconnect the drive device 11. It can be taken out of the main body 1 in a cut-off state. Installation after maintenance and inspection can be easily carried out by reversing the above procedure.

[Effects of the invention] As is clear from the description of the embodiments, the ventilation system of the present invention has a switching damper that selectively closes the first air passage and the second air passage.
Ventilation can be provided to the heat exchanger as needed. In addition, when removing the drive device that closes and operates the switching damper from the inspection port for maintenance, all that is required is to disconnect the power cord by pulling out the insertion side of the connector, and the receiving side of the connector must be placed on the inspection port side of the drive device. Because of this, when performing maintenance work in a dimly lit ventilation system, you can easily disconnect the power cord by just fumbling around, and you can reliably prevent damage to the power cord by disconnecting it. have

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the configuration of a ventilation system as an embodiment of the present invention, and FIG. 2 is a side view thereof.
FIG. 3 is a perspective view showing the configuration of the drive device, and FIG. 4 is a perspective view showing the attachment and detachment of the drive device. In the figure, 1 is the main body, 2 is a ventilation path, 5 is an exhaust blower, 8 and 9 are air paths, 10 is a drive motor, and 12
13 is a switching damper, 13 is an inspection port, 17 is a power cord, and 18 is a connector. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] Inside the ventilation system, air is inhaled and
a heat exchanger that exchanges heat between exhausted outside air and indoor air; a first air passage that exhausts the indoor air to the outside air side through the heat exchanger; and a first air passage that causes the indoor air to pass through the heat exchanger. a second air blowing path that discharges the air to the outside air side without any airflow, a switching damper that selectively closes the first and second air blowing paths, and a removable drive device that is responsible for the closing operation of the switching damper. An inspection port is provided on the surface of the ventilation device main body through which the drive device can be inserted and removed, and a receiving side of a connector connected to the motor of the device is fixed to a part of the inspection port side of the drive device, and the ventilation device is Attach the insertion side of the above connector to the power cord wired to the device main body side,
A ventilation device characterized in that power is supplied to a motor by connecting a connector.