JP4245443B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner provided with a ventilation device for ventilating room air so as to provide a more comfortable indoor environment.

  Today, an indoor unit of a separation type air conditioner is arranged on an indoor wall, indoor air is sucked into the indoor unit by a circulation fan inside the indoor unit, and heat generated by the heat exchanger inside the indoor unit is exchanged. It is extremely common to supply warm air into the room and maintain the room in a comfortable temperature environment. However, in order to improve the cooling and heating effects, the air conditioning is performed without much room ventilation. Therefore, if the room is in a hermetically sealed state for a long time, the room air becomes dirty. Therefore, it is necessary to open the room regularly to release the room air and to ventilate the outside air.

For this reason, what has been conventionally provided with a ventilator in an air conditioner has been proposed. For example, a building hole is formed on the wall of a building, where a space between the indoor unit and the outdoor unit of the air conditioner passes through and a piping hole having a ventilation passage, and an outdoor fan for ventilation and a fan motor for driving the ventilation fan are installed outdoors. In addition, a ventilation device provided in the vicinity of the outlet of the ventilation passage (see, for example, Patent Document 1), a space through which a pipe between an indoor unit and an outdoor unit of an air conditioner passes through a building wall, and for exhaust and air supply A blower in which a piping hole having a ventilation passage is formed and one of the sirocco fans provided on the left and right shafts of the fan motor is accommodated in the exhaust ventilation passage and the other sirocco fan is accommodated in the supply ventilation passage. An internal ventilation unit is installed in the vicinity of the indoor unit, and one of the sirocco fans rotates to exhaust the indoor air from the exhaust ventilation passage to the outside. At the same time, the other sirocco fan rotates to supply outside air from the air supply ventilation passage. Ventilator forms to perform ventilation incorporating the inner (e.g., see Patent Document 2).
JP2001-27433 Japanese Patent No. 2629665

  By the way, in an air conditioner equipped with a ventilation device as described above, a hole is formed in a wall of a building to provide a space for piping and a ventilation passage, and a ventilation fan is provided in the vicinity of a wall hole on the outdoor side. . For things that pass through wall holes (piping and wiring), refrigerant piping connected between indoor and outdoor units, power cords for operating the electrical components of indoor units, and transmission and reception of signals between indoor and outdoor units There are control system transmission lines and drain hoses for discharging drain water to the outdoors. These pipes are installed together with the wall holes, and ventilation fans are installed near the wall holes on the outdoor side, so piping and wiring are concentrated near the wall holes, making it difficult to install the ventilator. In addition, the appearance near the wall hole may be damaged.

  The present invention has been made in view of the above circumstances, and provides an air conditioner that facilitates mounting work of refrigerant piping and a ventilator and improves the appearance near the wall hole on the outdoor side. With the goal.

  In order to solve the above-mentioned problem, an invention according to claim 1 is an air conditioner in which an indoor unit installed indoors and an outdoor unit installed outdoors are connected by a refrigerant pipe through a wall hole. A ventilator having an outdoor fan for ventilation installed outdoors, a fan case for storing the outdoor fan, and a supply / exhaust passage communicating with the fan case and the interior and exterior of the house through the wall hole, A protective cover is provided on the outdoor portion of the ventilation device, and the protective cover has a rear plate that has an insertion hole through which the refrigerant pipe is inserted and is attached to the wall of a building, and a fixing portion that fixes the fan case. And a partition for partitioning the refrigerant pipe, and an outer cover that covers the fan case and the refrigerant pipe.

  Invention of Claim 2 is the air conditioner of Claim 1, arrange | positions refrigerant | coolant piping between the said back plate and a partition, The said partition is detachably attached to a back plate, It is characterized by the above-mentioned. And

  According to a third aspect of the present invention, in the air conditioner according to the first or second aspect, the outer cover is detachably attached to a rear plate or a partition.

  According to the present invention, an air conditioner having a ventilator of the present invention is provided with a protective cover that covers an outdoor side portion (such as an outdoor fan and a fan case) of the ventilator, and is isolated from the ventilator within the protective cover. Since the refrigerant piping is arranged, the ventilation device and the refrigerant piping do not come into contact with each other and are not damaged, and the ventilation device and the refrigerant piping are housed in the protective cover so that the appearance near the wall hole can be obtained. Can be better.

  In addition, since the outer cover arranged outside the protective cover can be easily attached and detached, the inspection and repair of the ventilation device can be facilitated, and the divider can be easily attached and detached. It is easy to remove the refrigerant pipe disposed behind, and thus the air conditioner can be easily removed.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an air conditioner shown with a part omitted (side surfaces of an indoor unit, a wall of a building, and an outer cover of a ventilation device), and FIG. 2 is a perspective view of a protective cover shown with the outer cover removed. 3 is a side view of FIG. 2, and FIG. 4 is a perspective view of a protective cover with an outer cover attached.

  In FIG. 1, an indoor unit 1 has a main body case 5 including a front case 3 having a suction panel 2 and a rear case 4 on the back side, and a blower outlet (not shown) is provided at the lower end of the main body case 5. ) And a heat exchanger 6 for heating / cooling indoor air is disposed in the main body case 5. The heat exchanger 6 functions as a cooler during the cooling / dehumidifying operation and functions as a heater during the heating operation by allowing the refrigerant to pass through the refrigerant tube 7 arranged perpendicularly to the fins and meandering. .

  A circulation fan 8 is provided inside the main body case 5 so as to be surrounded by the heat exchanger 6, and indoor air is sucked from the suction panel 2 by the circulation fan 8 and heated / cooled by the heat exchanger 6. Thus, the cool air / warm air is blown out again from the outlet and circulated. In addition to this, a drain pan 9 provided at the lower end of the heat exchanger 6 for storing and discharging dripped drain water, or an air filter (not shown) disposed between the heat exchanger 6 and the suction panel 2. ) And components such as a wind direction device (not shown) for changing the blowing direction provided at the outlet. Further, an electrical component 11 for performing operation control of the compressor of the outdoor unit (not shown) and drive control of the fan motor of the circulation fan 8 is partitioned and incorporated in one side portion of the main body case 5. Yes.

  The indoor unit 1 and the outdoor unit are connected by a refrigerant pipe 18, and a refrigerant pipe 18 connects between a refrigerant compressor, an outdoor heat exchanger and a decompressor provided in the outdoor unit, and the heat exchanger 6 of the indoor unit 1. A refrigeration cycle in which the refrigerant circulates through is formed. The refrigerant pipe 18 is connected to the heat exchanger 6 and piped from the right part of the main body case 5 to the outside through a wall hole provided at the rear. Further, at the place where the refrigerant pipe 18 is piped, a drain hose connected to the drain pan 9 for discharging the drain water to the outside, a power cord for operating the circulation fan 8, a wind direction device, etc., and the temperature of the refrigerant A transmission line of a control system for controlling the operation of the refrigerant compressor by detecting the pressure or the room temperature or the like is housed in a protective tube (not shown) and wired together.

  During the air conditioning operation, the refrigerant compressor of the outdoor unit and the circulation fan 8 of the indoor unit 1 are operated, and the rotation of the circulation fan 8 causes the indoor air to be sucked into the indoor unit 1 from the suction panel 2 and exchanges heat with the heat exchanger 6. Then, cold air / warm air is blown into the room from the lower outlet, and air conditioning for cooling / heating is performed.

  Next, the ventilation device will be described. The ventilator is equipped with an indoor fan for exhaust inside the indoor unit, and an outdoor fan for supplying air outside, and by either driving, air is supplied or exhausted through a common air supply / exhaust pipe for ventilation. Is.

  Reference numeral 12 denotes an indoor fan for exhausting and ventilating indoor air to the outside (outdoor), and is housed in the indoor unit 1. Specifically, for example, it is arranged near the side surface of the heat exchanger 6. A sirocco fan is used as the indoor fan 12. The sirocco fan and the drive motor for the indoor fan 12 are housed in a thin, substantially cylindrical indoor fan case 13A. When the sirocco fan rotates, room air is sucked in from a circular suction port 14A opened on one side of the indoor fan case 13A, and then blown out from a blowing portion 15a provided at one end of the indoor fan case 13A.

  On the other hand, 20 is an outdoor fan for supplying outdoor air into the room for ventilation, and is provided at a position facing an outdoor wall hole. That is, it arrange | positions on the outdoor side of the indoor wall (not shown) to which the indoor unit 1 is attached. A sirocco fan is also used for the outdoor fan 20, and when the sirocco fan rotates, as in the previous indoor fan 12, outdoor air is sucked from the circular suction port 14B opened on one side of the outdoor fan case 13B. After that, the air is blown out from the blowing portion 15b provided at one end of the outdoor fan case 13B.

  Reference numeral 16 denotes a common air supply / exhaust pipe provided to exhaust indoor air sucked by the indoor fan 12 to the outside and supply outdoor air sucked by the outdoor fan 20 to the room. It is arranged so that it exists and exists inside and outside the house. The supply / exhaust pipe 16 forms a supply / exhaust path that communicates the inside and outside of the house. The indoor fan case 13 </ b> A and the outdoor fan case 13 </ b> B are provided at both ends thereof so as to be connected via the single common supply / exhaust pipe 16. That is, the indoor fan case 13A is installed so as to be connected to the indoor side open end 17a of the air supply / exhaust pipe 16, and the outdoor fan case 13B is provided so as to be connected to the outdoor side open end 17b of the pipe 16. The outdoor fan case 13 </ b> B is attached to the outdoor opening end 17 b of the air supply / exhaust pipe 16 in a hanging manner, with the blowout portion 15 being connected thereto. Screw insertion holes 21 and 21 for fixing the outdoor fan case 13B are formed in the upper left part and the lower right part of the outdoor fan case 13B.

  The air supply / exhaust pipe 16 extends from the left side of the indoor unit 1 to the back, and then extends horizontally along the back side of the indoor unit 1 toward the side opposite to the outlet, and bends at a right angle at the tip. It is extended to the outdoors.

  The indoor fan 12 and the outdoor fan 20 are for driving one of them and not for driving simultaneously. Therefore, when the indoor fan 12 is driven alone, the indoor fan 12 sucks indoor air from the suction port 14A, and exhausts the air through the air supply / exhaust pipe 16 to the outside using the suction port 14B of the outdoor fan 20 as a blowing portion. Ventilation is done. On the other hand, when the outdoor fan 20 is driven alone, outdoor air is sucked from the suction port 14B by the outdoor fan 20 and blown into the room through the air supply / exhaust pipe 16 using the suction port 14A of the indoor fan 12 as a blowing portion. Ventilation is performed. Thus, the indoor fan case 13 </ b> A, the outdoor fan case 13 </ b> B, and the single common air supply / exhaust pipe 16 provided by connecting both ends constitute a ventilation device.

  Next, a protective cover that is attached to the outside of the wall hole and protects the refrigerant piping and the outdoor side portion of the ventilation device will be described.

  2 and 3, the protective cover 22 includes a rear plate 25 attached to the wall surface provided with the wall hole 23, a partition 26 that partitions the inside of the protective cover 22, and an outer cover 27 that covers the partition 26 (see FIG. 4). ) And covers a part of the outdoor side of the ventilator and the refrigerant pipe 18.

  The rear plate 25 has a circular upper portion and a rectangular lower portion, and a flange 31 on the outer periphery and an inverted U-shaped vertical wall 32 on the inner side of the flange 31. The flange 31 is provided with five screw holes 33, 33,... For mounting on the wall surface, and a C-shaped flat portion 34 is formed inside the upper vertical wall 32. The refrigerant pipe 18 and the air supply / exhaust pipe are formed on the inside. A substantially circular insertion hole 35 through which 16 is inserted is provided. At the front end portion of the vertical wall 32, three upper and lower claw portions 36, 37, and 38 for fixing the partition 26 are provided on the left and right, respectively. The upper claw portions 36 and 36 have a hook shape protruding downward, the middle claw portions 37 and 37 have a hook shape protruding upward, and the lower claw portions 38 and 38 have a hook shape protruding inward. . Further, four bosses 41, 41,... For fixing the outer cover are provided in contact with the inside of the vertical wall 32, and screw holes 41a are provided in each.

  The partition 26 has a U-shape when viewed from above, and has a front plate 43 and left and right side plates 44, 44, and is open in the rearward and vertical directions. A rectangular tube-shaped ventilation opening 46 is provided at the lower portion of the front plate 43. The opening 46 is provided with a filter 47 and a shutter (not shown) that cover the cross section. The filter 47 has a mesh structure, and serves to catch dust and foreign matters in the outside air that is sucked in and does not enter the inside. I am doing. The shutter is provided with a plurality of horizontal plates below the filter 47 to protect the inside of the protective cover 22 from rain and dust, and to prevent the inside from being damaged by mischief.

  Screw holes 51 and 51 corresponding to the screw insertion holes 21 and 21 of the outdoor fan case 13B are provided in the upper left and lower right of the front plate 43, and mounting screws are passed through the screw insertion holes 21 and 21 and screw holes 51. , 51 can fix the outdoor fan case 13B to the partition 26. Further, at the rear end portions of the left and right side plates 44, 44, three left and right projecting pieces 52, 53, 54 for attaching to the rear plate 25 are provided. The upper projecting pieces 52 and 52 protrude left and right and are inserted into the upper claw portions 36 and 36 of the rear plate 25 from below. The middle projecting pieces 37 and 37 protrude outward and the projecting pieces 37 and 37 are formed with elongated rectangular holes 55 and 55. The square holes 55 and 55 are inserted into the middle claw parts 37 and 37, and the partition 26 The partition base 26 is hooked and fixed on the claws by shifting downward. The lower protrusions 54 and 54 protrude left and right, and are inserted into the left and right lower claws 38 and 38 so that the left and right lower claws 38 and 38 are once opened outwardly and closed to the lower protrusions 54 and 54. It is supposed to hang.

  In FIG. 4, the outer cover 27 is provided with screw holes 56, 56 for attachment to the partition 26 at both left and right ends, and through these screw holes 56, 56, screw holes 41a, 41a,. The outer cover 27 is fixed to the partition 26 by tightening to.

  In the protective cover 22 configured as described above, the mounting operation of the protective cover 22 is performed after the supply / exhaust pipe 16 and the refrigerant pipe 18 are drawn out through the wall hole 23 to the outside. First, the air supply / exhaust pipe 16 is arranged above the insertion hole 35 and the refrigerant pipe 18 is arranged below the insertion hole 35, and the rear plate 25 is fixed to the wall surface with an attachment screw. Next, the refrigerant pipe 18 is linearly arranged on the front surface of the rear plate 25 and downward. The partition base 26 is fixed to the rear plate 25, and the blowout portion 15b of the outdoor fan case 13B is connected to the outdoor opening end 17b of the air supply / exhaust pipe 16. The outdoor fan case 13 </ b> B is fixed to the partition base 26 by inserting attachment screws into the screw insertion holes 21 and 21. Next, the outer cover 27 is covered from the front of the outdoor fan case 13B and fixed with mounting screws, whereby the protective cover 22 is fixed to the wall surface and the mounting operation is completed.

  In this way, the refrigerant pipe 18 is placed between the rear plate 25 and the partition 26, and the refrigerant pipe 18 is arranged separately from the outdoor fan case 13B. Therefore, the refrigerant pipe 18 moves and the outdoor fan case 13B is moved. The refrigerant pipe 18 and the outdoor fan case 13B are housed in the protective cover 22, so that the appearance of the wall surface of the building can be improved.

  Further, since the outer cover 27 can be easily removed, the inspection and repair of the ventilation device can be facilitated, and the partition 26 can be easily attached and detached, so that the refrigerant pipe 18 can be easily removed, and accordingly. The air conditioner can be easily removed.

  As mentioned above, although this invention was demonstrated based on the Example, this invention is not limited to this, In the range which does not deviate from a summary, it can deform | transform.

  The ventilation device of the present embodiment has the air supply / exhaust pipe 16 inserted through the wall of the building and connected to the outdoor fan 20, but directly ventilates through the wall hole 23 of the building without having such an air supply / exhaust pipe. It can also be applied to ventilation equipment.

  Further, although the outer cover 27 is attached to the rear plate 25, the outer cover 27 may be attached to the partition base 26.

It is a perspective view of the air conditioner which abbreviate | omitted a part in one Embodiment of this invention (The side of an indoor unit, the wall of a building, and the outer cover of a ventilation apparatus). It is a perspective view of the protective cover which removed and showed the outer cover. FIG. 3 is a side view of FIG. 2. It is a perspective view of the protective cover which attached and showed the outer cover.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Suction panel 5 Main body case 6 Heat exchanger 9 Drain pan 11 Electrical part 12 Indoor fan 14A Suction port 14B Suction port 15a Blowing part 15b Blowing part 16 Supply / exhaust pipe (supply / exhaust path)
17a Indoor side open end 17b Outdoor side open end 18 Refrigerant piping 20 Outdoor fan 21 Screw insertion hole 22 Protective cover 23 Wall hole 25 Rear plate 26 Partition 27 Outer cover 31 Flange 32 Vertical wall 33 Screw hole (for wall mounting)
35 Insertion hole 36 Upper claw part 37 Middle claw part 38 Lower claw part 41 Boss 41a Screw hole (for outer cover attachment)
43 Front plate 44 Left right plate 46 Ventilation opening 47 Filter 51 Screw hole 52 Upper projection piece 53 Lower projection piece 54 Lower projection piece 55 Square hole 56 Screw hole (for mounting the outer cover)

Claims (3)

In an air conditioner that connects an indoor unit installed indoors and an outdoor unit installed outdoors through a wall hole with a refrigerant pipe,
A ventilator having an outdoor fan for ventilation installed outdoors, a fan case for housing the outdoor fan, and a supply / exhaust passage communicating with the fan case and the interior and exterior of the house through the wall hole, A protective cover is provided on the outdoor portion of the ventilation device, and the protective cover has a rear plate that has an insertion hole through which the refrigerant pipe is inserted and is attached to the wall of the building, and a fixing unit that fixes the fan case. An air conditioner comprising a partition for partitioning a refrigerant pipe and an outer cover that covers the fan case and the refrigerant pipe.   The air conditioner according to claim 1, wherein a refrigerant pipe is disposed between the rear plate and the partition, and the partition is detachably attached to the rear plate. The air conditioner according to claim 1 or 2, wherein the outer cover is detachably attached to a rear plate or a partition.

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