JP4341335B2 - Air conditioner with ventilator - Google Patents

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner including a ventilation unit capable of performing ventilation having a supply / exhaust function.

  In an air conditioner indoor unit equipped with a ventilation unit that can supply and exhaust air with an overflow fan that can be switched between forward and reverse rotation, the fan used as a ventilation fan has a plurality of blades as the main plate It consists of a motor that can be rotated forward and reverse and a casing that drives it, and is equipped with an air filter in the duct to prevent dust from entering the outside. It was the block diagram which performs supply air exhaust ventilation from an air supply port and an exhaust port by driving. (See Patent Document 1)

JP 2000-193269 A (pages 2 to 4, FIGS. 1 to 7)

  In a conventional air conditioner having a ventilation unit capable of switching between supply and discharge, an air filter and a blower are provided in the air passage, but the air supply and exhaust ports are always open. In recent years, the number of houses with high airtightness and high thermal insulation has increased, and when indoor fans are used, or when outdoor outdoor winds are strong, the indoor air pressure decreases and the outdoor air flows into the room through a slight gap between the room and the outside. It is a situation to do. Therefore, even in a state where the ventilation function is stopped, there is a problem that harmful gases and bad odors enter the room from the outside in an environment where a pressure difference occurs inside and outside the room.

  Further, since the ventilation unit is provided on the side surface of the heat exchanger, there is a problem that when the dimensions of the air conditioner are not changed, the stacking width of the heat exchanger is reduced and the cooling / heating performance is lowered.

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to prevent bad odors and harmful substances from flowing into the room from the outside when the user stops the ventilation function. To do.

  In addition, by installing a ventilation unit downstream of the heat exchanger formed by the front heat exchanger and the rear heat exchanger by bending it in multiple stages, the stacking width of the heat exchanger is not reduced, and the cooling / heating performance is reduced. The purpose is to suppress the decrease.

Ventilator with the air conditioner according to the present invention this is a ventilator with an air conditioner having a ventilation unit on the side portion of the chamber machine is disposed inside the heat exchanger, along a circumferential direction chamber The outer shell in which the outer air supply / exhaust port and the indoor air supply / exhaust port are fixedly arranged , the casing that is built in the outer shell, the fan that uses the sirocco fan is arranged inside, the casing that is built in the outer shell, and the casing Is formed by a motor and a gear that rotate the outer shell in the circumferential direction, an outer shell and a casing, and an air passage that guides air to the suction port of the blower , an indoor air supply / exhaust port located downstream of the heat exchanger, and heat And an indoor air supply / exhaust section that connects the front side of the heat exchanger upstream of the exchanger, and when the ventilation unit performs exhaust ventilation that causes the indoor air to flow out of the room, the air passage is connected to the indoor air supply / exhaust Mouth and communication So that the, also when the ventilation unit performs air supply ventilation introducing outdoor air into the room, the air passage is in communication with the outdoor air supply and exhaust port, also, of any exhaust ventilation and air supply ventilation When ventilation is not performed, it is possible to switch between exhaust ventilation and supply air ventilation by rotating the casing along with the blower in the circumferential direction with a motor and gear so that the casing closes the outdoor air supply / exhaust port In addition, when the ventilation operation is stopped, the inflow of outdoor air into the room is prevented .

Ventilator with the air conditioner according to this invention, without without changing the dimensions of the indoor unit reduces the loading width of the heat exchanger, capable of switching the exhaust ventilation and air supply ventilation heat exchanger the ventilation unit can be added to the indoor unit, cooling, without degrading the basic performance of the air conditioner that warms, with a constantly comfortable indoor environment by performing the switching of the exhaust ventilation and air supply ventilation according to the indoor environment can be maintained When the ventilation operation is stopped, it is possible to prevent the odor and harmful substances from flowing into the room .

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIG. 1 to 6 are diagrams showing Embodiment 1 of the present invention. FIG. 1 is an exploded perspective view of a ventilation fan. FIG. 2 is a perspective view of a main part of an indoor unit of an air conditioner equipped with a ventilation unit. 3 is a perspective view of an indoor unit of an air conditioner provided with a ventilation unit, and FIGS. 4, 5 and 6 are cross-sectional views of the ventilation unit. In FIG. 1, a blower 1, a motor 2 that can rotate the blower 1 forward and reverse, a gear that transmits the power of the motor 2 to the blower 1 for rotating the blower 1, and the like And an outer frame 6 in which a ventilation unit 5 including a casing 4 provided for rotating the blower 1 by the power of the motor 2 is incorporated.

  This will be described with reference to FIGS. In FIG. 2, when the ventilation unit 6 is provided in the indoor unit 10 of the air conditioner, the ventilation unit 6 is configured by the first air passage forming member 10 a that forms the air passage side surface, the ventilation unit 6 is provided on the side surface, and heat exchange is performed. It is comprised by the member 12 which collect | recovers the condensed water adhering to the fixing member 11 and heat exchanger fixing member 11 of an oven. When the ventilation unit 6 is not provided, as shown in FIG. 3, the second air path forming member 10b that closes the ventilation unit 6 installation space and forms the air path side surface may be provided.

  The operation in this case will be described. In the case of an air conditioner with a ventilation function, the air path side surface member 11 of the air conditioner indoor unit 10 is a separate member, and in the case of an air conditioner without a ventilation function, the second air path is formed. By using the member 10b, it is possible to mold with one mold for molding the air conditioner indoor unit 10, so that the mold cost can be reduced.

  The ventilation unit 6 uses a high static pressure type sirocco fan or the like as the blower 1, as shown in FIGS. 5A and 5B, and FIGS. 6A and 6B. The outdoor air supply / exhaust port 7 and the indoor air supply / exhaust port 8 are fixedly arranged, and the air blower 1 is provided with a casing 4 and rotated by the motor 2 so that the supply air ventilation and the exhaust ventilation can be switched. Yes.

In addition, an environmental detection means 9 comprising various environmental detection sensors such as a temperature sensor for detecting indoor / outdoor temperature, a humidity sensor for detecting humidity, a miscellaneous gas such as cigarettes, a miscellaneous gas sensor for detecting CO2 or the like, or a CO2 sensor. Is provided in the middle of the indoor ventilation path of the ventilation device 6 or in the middle of the outdoor ventilation path, so that the environment inside and outside the room can be detected. In this way, a sensor is installed in the air path as a means to detect the indoor and outdoor environments, so that a comfortable indoor environment is always maintained by switching between the exhaust mode and the air supply mode using the ventilation fan according to the indoor and outdoor environmental conditions. It can be controlled as possible.

  Further, the ventilation unit 6 is arranged on the side surface of the indoor unit 10 of the air conditioner, and includes a heat exchanger side surface fixing member 11 and a condensed water recovery member 12 that recovers the condensed water generated on the heat exchanger side surface fixing member 11. A room-side air supply / exhaust section 14 connected to the room-side air supply / exhaust port 8 of the ventilation unit 6 is disposed so as to have a double outer shell and located upstream of the heat exchanger 13, and this heat is disposed inside the heat exchanger 13. It arrange | positions, without reducing the stacking width of the exchanger 13. FIG.

  Moreover, as shown in FIG. 4, in the indoor side air supply / exhaust part 14 provided so that it may flow out of the heat exchanger 13 upstream from the ventilation unit 6, it can remove, deodorize, dust collection, or nitrogen oxide A filter 14a for removing harmful substances such as these is attached.

  Next, the operation will be described. As shown in FIG. 6, in the case of exhaust ventilation (a), the air inflow / outflow path sucks indoor air from the indoor air supply / exhaust port 8, and the air flow path formed by the outer shell 5 and the casing 4 allows the air blower 1 to It is sucked into the suction port and flows out of the room.

In the case of air supply ventilation (b), the air blower 1 is rotated to suck indoor air from the outdoor air supply / exhaust port, and flows into the air intake port of the air blower 1 from the air path formed by the outer shell 5 and the casing 4. Then, outdoor air is taken into the room through the indoor air supply / exhaust part 13 from the indoor air supply / exhaust port 8 formed by the outer shell 5.

  When ventilation is not performed, as shown in FIG. 7, the outdoor intake / exhaust port is closed by the casing 4 by rotating the air blower 1, and when the ventilation operation is stopped, the bad odor / hazardous part room outside flows into the room. Further, by using a filter 14a in the air supply / exhaust section 14 on the indoor side as shown in FIG. 4, in the case of air supply ventilation, bad odor that flows into the room from the outside, or dust, pollen, or nitrogen It can remove harmful substances such as oxides and inhale clean air into the room.

  Further, since the filter 14a is provided in the indoor air supply / exhaust section 14 with a removable mechanism, the filter can be easily replaced when the performance of the filter deteriorates.

  Furthermore, in order to reverse the flow and enable air supply / exhaust ventilation using the blower 1 in which the suction port and the blowout port are fixed and the flow direction is fixed, the blower 1 is provided in the geared casing 4. And by rotating the geared casing 4 by the motor 2 and the gear 3, it is possible to switch between supply air and exhaust ventilation.

  In FIG. 1, the casing that forms the air path of the blower and the geared casing 4 that is provided to rotate the blower are configured as separate parts. By integrating the shape, the number of parts is reduced, and the ventilation unit 6 that can be switched between supply and discharge at a lower cost can be configured.

  Next, another embodiment of the present invention will be described with reference to FIG. As shown in FIG. 8, the ventilation unit 6 is provided outside the outdoor unit 15 so that the air supply ventilation and exhaust ventilation shown in FIG.

  In addition, as shown in FIG. 9, the ventilation unit 6 is provided on the outdoor wall 16 so that the air supply ventilation and exhaust ventilation shown in FIG.

  Further, as shown in FIG. 4, a ventilation unit 6 capable of switching between supply and exhaust ventilation is provided in the indoor unit 10, and ventilation as shown in FIGS. 8, 9 (a) and 9 (b) can be switched between supply and exhaust ventilation. The unit 6 is provided on the outer wall of the outdoor unit 15 or the outdoor wall 16.

  Next, the operation will be described. As in the first embodiment, the ventilation unit 6 that enables switching between supply air ventilation and exhaust ventilation is provided on the outer wall of the outdoor unit 15 or the outdoor wall 16, and the indoor unit 10 of the air conditioner is connected by a duct 17. In addition, exhaust ventilation of dirty air in the room and supply air ventilation that takes in fresh air outside the room can be made possible.

  Furthermore, the basic performance of cooling and warming the indoor environment of the air conditioner with low energy because it is provided on the outer wall of the outdoor unit 15 or on the outdoor outer wall 16 so as not to obstruct the heat exchanger amount and the air path of the outdoor unit 15. Ventilation function can be added without disturbing.

  In addition, by arranging the control board 17 for driving the ventilation fan together with the ventilation unit 6, the ventilation device 6 can be added to the exterior of the outdoor unit 15 or the outdoor wall 16 of the model that has been conventionally sold.

  In addition, the ventilation unit 6 is disposed on the outdoor unit 15 or the outdoor wall 16 and connected to the indoor unit 10 using the duct 17 for ventilation. Therefore, depending on the installation state of the air conditioner, the length of the duct 17 may be about 20 m. Become. In such a case, the pressure loss of the duct 17 increases and the ventilation air volume decreases. In order to solve this problem, the duct 17 is elongated by connecting the ventilation unit 6 in series with the outdoor unit 15 and the indoor unit 10 or the outdoor wall 16 or the outdoor unit 16 and the indoor unit 10 through the duct 17. Even in a state where the pressure loss is high, a sufficient amount of ventilation can be secured.

  Next, another embodiment of the present invention will be described with reference to FIG. In FIG. 10, the indoor air supply / exhaust section 14 of the ventilation unit 6 is provided so as to flow out upstream of the heat exchanger 13, and an electret filter or the like arranged so that air supplied downstream thereof passes therethrough. A dust collecting mechanism 19 is provided.

  Next, the operation will be described. Since the air supplied downstream of the indoor air supply / exhaust section 14 is arranged so as to pass through the dust collecting mechanism 19, not only pollen and dust contained in the indoor air but also pollen of air supplied from the outside -Dust is also collected and the air from which pollen and dust have been removed is released from the outlet 10c of the air conditioner 10, and the indoor environment can be cleaned.

  Next, another embodiment of the present invention will be described with reference to FIG. In FIG. 11, the indoor air supply / exhaust section 14 of the ventilation unit 6 is provided so as to flow out upstream of the heat exchanger 13 and is arranged so that air supplied downstream thereof passes therethrough or air. An air cleaning mechanism 20 such as a cleaning filter is provided.

  Next, the operation in this case will be described. Since the air supplied downstream of the indoor air supply / exhaust section 14 is arranged so as to pass through the air cleaning mechanism 20, not only pollen and dust contained in the indoor air but also air supplied from the outside Pollen and dust are also collected, and air from which pollen and dust have been removed is released from the outlet 10c of the air conditioner 10, and the indoor environment can be cleaned.

  In the other embodiment of the preceding paragraph, the air purification mechanism 20 is provided in the indoor air supply / exhaust section 14 of the ventilation unit 6 so as to flow out upstream of the heat exchanger 13, but the air supplied downstream thereof It is good also as an arranged harmful substance removal filter that removes harmful substances such as bad odors and nitrogen oxides so as to pass through.

  The operation in this case will be described. Since the air is arranged so as to pass through the harmful substance removal filter, it not only removes bad smells and nitrogen oxides contained in the room air, but also bad smells and nitrogen in the air supplied from the outside. Hazardous substances such as oxides are removed, and air from which harmful substances such as bad odors and nitrogen oxides are removed is discharged from the outlet 10c of the air conditioner 10 to clean the indoor environment.

1 is an exploded perspective view of a ventilation device according to Embodiment 1 of the present invention. The principal part disassembled perspective view of the air conditioner indoor unit with a ventilation unit by Embodiment 1 of this invention. The perspective view of the air conditioner indoor unit when the ventilation unit by Embodiment 1 of this invention is not arrange | positioned. The perspective view of the air conditioner indoor unit with a ventilation unit by Embodiment 1 of this invention. Sectional drawing of the ventilation unit by Embodiment 1 of this invention. Sectional drawing of the ventilation unit by Embodiment 1 of this invention. Sectional drawing of the ventilation unit by Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the air conditioner outdoor unit with a ventilation unit by Embodiment 1 of this invention. Sectional drawing which attached the ventilation unit by Embodiment 1 of this invention to the outdoor outer wall. The perspective view of the air conditioner indoor unit with a ventilation unit by Embodiment 1 of this invention. The perspective view of the air conditioner indoor unit with a ventilation unit by Embodiment 1 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Blower, 2 Motor, 3 Rotating member, 4 Casing, 5 Outer frame, 6 Ventilation unit, 7 Outdoor air supply / exhaust port, 8 Indoor side air supply / exhaust port, 9 Environment detection means, 10 Air conditioner indoor unit, 14 Indoor air supply / exhaust section, 15 outdoor unit for air conditioner.

Claims (3)

An air conditioner with a ventilator comprising a ventilation unit arranged inside a heat exchanger at a side part of an indoor unit,
The ventilation unit is
An outer wall in which the outdoor air supply / exhaust port and the indoor air supply / exhaust port are fixedly disposed along the circumferential direction,
A casing in which the air blower using a sirocco fan is disposed inside, as well as being built in the outer shell,
A motor and a gear that are housed in the outer shell and rotate the casing in a circumferential direction of the outer shell;
An air passage that is formed by the outer shell and the casing, and that guides air to a suction port of the blower;
An indoor air supply / exhaust section that connects the indoor air supply / exhaust port located downstream of the heat exchanger and the front side of the heat exchanger upstream of the heat exchanger,
When the ventilation unit performs exhaust ventilation that causes room air to flow out of the room, the air passage communicates with the indoor air supply / exhaust port.
In addition, when the ventilation unit performs air supply and ventilation for taking outdoor air into the room, the air passage communicates with the outdoor air supply / exhaust port.
Further, when neither the exhaust ventilation nor the supply air ventilation is performed, the casing closes the outdoor supply / exhaust port,
By rotating the casing in the circumferential direction of the outer wall together with the air blower by the motor and gear, it is possible to switch between the exhaust ventilation and the supply air ventilation, and when the ventilation operation is stopped, An air conditioner with a ventilator, wherein the outdoor air is prevented from flowing in . The environment detection sensor for detecting the indoor environment provided et al is, the environment detection in accordance with the detection state of the sensor, according to claim 1, characterized in that for switching the air supply ventilation and the exhaust ventilation ventilation Air conditioner with device . An air purifying mechanism comprising an air purifying filter or an electric dust collector is disposed downstream of the indoor air supply / exhaust section and so that the outdoor air supplied into the room passes in the case of the air supply ventilation. ventilation device with an air conditioner according to claim 1 or claim 2, characterized in that there.

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