JP2022083813A - Spot air conditioner - Google Patents

Abstract

To provide a spot air conditioner which enables reduction of noise caused by a drive motor.SOLUTION: An air conditioning passage R1 is partitioned from a heat exhaust passage R2 by a cylindrical duct 16 formed by a panel 185. One 5 of blowers is installed in the duct 16 and the one blower 5 includes a driving motor 53 and a fan 54. The driving motor 53 is disposed at a position avoiding a ventilation space S1, which is located between the fan 54 and a supply port 10a, of the duct 16.SELECTED DRAWING: Figure 9

Description

The present invention relates to a spot air conditioner capable of locally performing air conditioning.

Spot air conditioners that can locally perform air conditioning are used in workplaces such as factories and steel mills and outdoors in order to improve the working environment. Such a spot air conditioner includes a heat pump mainly composed of a compressor, a condenser, an expansion valve, and an evaporator, and a condenser blower and an evaporator blower, which are housed in one housing. There is something that has been done. Such a spot air conditioner is easy to handle and has high mobility, and it is easy to move it to an arbitrary place.

In the spot air conditioner shown in Patent Document 1, the inside of the housing is partitioned by a partition member, and the fan of the evaporator and the blower for the evaporator is arranged inside the partition member, and the air provided in the housing is provided. The suction port and the supply port are communicated with each other so that air-conditioned air can be supplied. In addition, a condenser, a fan of a blower for the condenser, a drive motor, an expansion valve, and a compressor are arranged on the outer part of the partition member in the housing, and another suction port and an exhaust port are formed to perform air conditioning. It is possible to exhaust the residual heat generated at the time.

The outside air taken in from the suction port inside the partition member is cooled by exchanging heat with the evaporator, and is supplied to a suitable place as air-conditioned air from the supply port by the evaporator for the evaporator. Further, the outside air taken in from another suction port in the housing is heat-exchanged with the condenser to be heated, and is discharged to the outside from the exhaust port by the condenser blower, that is, the heat is exhausted.

In addition, drive motors for both axes are installed in the housing, and are configured to drive the fan of the blower for the evaporator and the fan of the blower for the condenser at the same time. This drive motor is arranged in the outer part of the partition member in the housing, the drive shaft on the evaporator side penetrates the partition member and is arranged inside the partition member, and the fan of the evaporator for the evaporator is placed inside the partition member. It is designed to be driven.

Japanese Unexamined Patent Publication No. 11-230609 (Page 3, Fig. 1)

In the spot air conditioner of Patent Document 1, since the drive motor is arranged on the outer side of the partition member in the housing, the flow of cold air (that is, air-conditioned air) cooled by the evaporator flowing in the partition member. Is not hindered by the drive motor. However, since the drive motor is surrounded only by the wall panel constituting the outer surface of the housing, the driving sound of the drive motor leaks out of the housing, and the noise is loud, which affects the working environment in which the spot air conditioner is arranged. There was a problem.

The present invention has been made focusing on such a problem, and an object of the present invention is to provide a spot air conditioner capable of reducing noise caused by a drive motor.

In order to solve the above problems, the spot air conditioner of the present invention is used.
A spot air conditioner in which a heat exchanger for air conditioning and a heat exchanger for exhaust heat are housed in one housing.
The housing has an air conditioning passage in which the outside air taken in from the suction port supplies the air-conditioned air whose heat has been exchanged with the heat exchanger for air conditioning from the supply port by one blower, and the outside air taken in from the other suction port. Provided with the heat exchanger for exhaust heat and a heat exhaust passage for exhausting the heat-exchanged exhaust air from the exhaust port by the other blower.
The air-conditioning passage is separated from the heat exhaust passage by a tubular duct composed of panels, and one of the blowers is installed inside the duct.
The one blower includes a drive motor and a fan, and the drive motor is characterized in that the drive motor is arranged at a position in the duct so as to avoid a ventilation space between the fan and the supply port.
According to this feature, the drive motor of the air-conditioning blower is housed in a duct separate from the housing composed of the wall panel. That is, since the drive motor is doubly surrounded by the housing and the duct inside the housing, the noise caused by the drive motor can be reduced. In addition, since the drive motor of one of the blowers is located at a position avoiding the ventilation space between the fan and the supply port, the drive motor does not obstruct the flow of the conditioned air that has passed through the heat exchanger for air conditioning. Can be housed in the duct.

The panel is characterized in that at least a part thereof is a soundproof panel.
According to this feature, the noise from the drive motor can be reduced by the soundproof panel.

The soundproof panel is characterized by being a sandwich panel in which a filler is filled between two plates.
According to this feature, the filling material enhances the soundproofing function and the surface plate material can be smoothly configured. In other words, since the filler having irregularities on the surface is not exposed in the duct, the flow of the conditioned air can be smoothed and the pressure loss in the duct can be reduced.

The one blower used for the air conditioning is unitized by rotatably mounting the fan around the drive shaft of the drive motor, and the fan blows air in the outer diameter direction.
According to this feature, since the fan blows air in the outer diameter direction, the drive motor can be arranged at a position avoiding the flow of conditioned air.

The drive shaft of the drive motor is arranged so as to be parallel to the central axis of the suction port and intersect the central axis of the supply port, and the duct is L so as to connect the suction port and the supply port. It is characterized by extending in a character shape.
According to this feature, the conditioned air blown in the outer diameter direction of the fan flows linearly toward the supply port, so that the pressure loss in the duct can be reduced.

The drive motor is characterized in that it is arranged away from the inner surface of the panel.
According to this feature, since the drive motor does not come into contact with the panel, the vibration of the drive motor is not transmitted to the panel, and noise can be suppressed.

The duct is characterized in that it is composed of a frame body composed of a plurality of frames and the panel attached to the frame body with bolts.
According to this feature, the structural strength of the duct can be improved. In addition, since the panel can be attached to and detached from the frame with bolts, maintenance inside the duct can be easily performed.

(A) is a front perspective view showing the spot air conditioner in the embodiment of the present invention, and (b) is also a rear perspective view. It is a front perspective view which shows the frame body of a housing. It is an exploded perspective view which shows the connecting line member connecting an evaporator and an air supply fan box. It is an exploded perspective view which shows the air supply fan box. (A) is a top view showing a panel, and (b) is a sectional view taken along the line AA of (a). (A) is a side view of the air supply fan box as viewed from the left, and (b) is a sectional view taken along the line BB of (a). (A) is a front view of the air supply fan box, and (b) is a side view of the air supply fan box as viewed from the right. FIG. 7 is a sectional view taken along the line CC of FIG. 7 (b). It is a top sectional view of a duct.

A mode for carrying out the spot air conditioner according to the present invention will be described below based on examples.

The spot air conditioner according to the first embodiment will be described with reference to FIGS. 1 to 9. Hereinafter, the outlet side of the spot air conditioner will be referred to as the front side (front side), and the left and right sides when viewed from the front will be described as the left and right sides of the spot air conditioner.

As shown in FIG. 1, the spot air conditioner 1 is arranged in a work place such as a factory or a steel mill, and can locally perform air conditioning with respect to the vicinity of a worker, thereby improving the work environment. You can do it. In this embodiment, the embodiment in which the spot air conditioner 1 is used for cooling is illustrated, but it can also be used for heating.

As shown in FIGS. 1 and 2, the spot air conditioner 1 is mainly composed of a housing 10 forming a substantially rectangular parallelepiped and a heat pump 20 housed in the housing 10. The housing 10 is assembled by a frame body 11 assembled by a plurality of frame materials 11a, and a plurality of wall surface panels 12 attached to the frame body 11 and forming an outer surface of the housing 10.

On the front surface of the housing 10, a supply port 10a for supplying the air-conditioned air A1 described later to an appropriate place to be air-conditioned is provided. Further, on the upper surface of the housing 10, an exhaust port 10b for discharging the exhaust air A2, which will be described later, to the outside of the housing 10 is provided. Further, a suction port 10c for air conditioning is provided on the right side of the housing 10, and a suction port 10d for exhaust heat is provided on the back surface of the housing 10. Breathable cover members 14 and 15 are attached to the suction port 10c and the suction port 10d to capture fine particles such as dust contained in the outside air to be sucked and prevent raindrops from entering, and heat for exhaust heat described later. The exchanger 22 and the heat exchanger 23 for air conditioning are prevented from coming into contact with each other from the outside. The cover member 15 may not have a filter function for capturing fine particles such as dust.

Further, the wall panel 12 constituting the bottom surface of the housing 10 functions as a drain pan, and drain water generated in the housing 10 can be temporarily stored and discharged to the outside of the housing 10 from a drain port (not shown). It has become like.

Inside the housing 10, there is an air-conditioning passage R1 that connects the air-conditioning suction port 10c and the supply port 10a, and a heat exhaust passage that connects the heat exhaust suction port 10d and the exhaust port 10b. R2 and are provided. The air-conditioning passage R1 is composed of a cylindrical duct 16, and the heat exhaust passage R2 is composed of a space other than the duct 16 in the internal space of the housing 10. That is, the air conditioning passage R1 and the heat exhaust passage R2 are partitioned by the duct 16 inside the housing 10.

The heat pump 20 is mainly composed of a compressor 21, a heat exchanger for exhaust heat 22, an expansion valve (not shown), a heat exchanger for air conditioning 23, and an accumulator 24. The heat medium is circulated in the order of the expansion valve, the heat exchanger 23 for air conditioning, and the accumulator 24. At the time of cooling, the air conditioning heat exchanger 23 functions as an evaporator, and the exhaust heat heat exchanger 22 functions as a condenser.

The heat medium becomes high-temperature and high-pressure superheated steam by the compressor 21, heat exchanges with the air sucked from the suction port 10d by the exhaust heat exchanger 22, becomes low-temperature and high-pressure supercooling liquid, and is depressurized by the expansion valve to low-temperature and low-pressure. It becomes moist steam, and heat is exchanged with the air sucked from the suction port 10c by the heat exchanger 23 for air conditioning, and becomes slightly overheated steam. In this way, the air sucked from the suction port 10c becomes the air-conditioned air A1 that has been cooled by heat exchange with the air-conditioning heat exchanger 23. Further, the accumulator 24 separates the liquid heat medium that has not been evaporated by the air conditioning heat exchanger 23 into a gas and a liquid, so that the liquid heat medium is prevented from being sucked into the compressor 21.

At the time of heating, the heat medium may be circulated in the order of the compressor 21 of the heat pump 20, the heat exchanger 23 for air conditioning, the expansion valve, and the heat exchanger 22 for exhaust heat, that is, in the direction opposite to that at the time of cooling. At this time, the air-conditioning heat exchanger 23 functions as a condenser, and the waste heat heat exchanger 22 functions as an evaporator. More specifically, the waste heat exchanger 22 exchanges heat with the outside air and absorbs heat from the outside air. In other words, the waste heat heat exchanger 22 exchanges heat with the outside air and exhausts the low-temperature heat of the heat medium to the outside of the housing 10.

The compressor 21, the exhaust heat heat exchanger 22, the expansion valve, and the accumulator 24 are arranged in the exhaust heat passage R2, and the air conditioning heat exchanger 23 is arranged in the air conditioning passage R1. Specifically, the waste heat heat exchanger 22 is arranged in the vicinity of the exhaust heat suction port 10d, and the air conditioning heat exchanger 23 is arranged in the vicinity of the air conditioning suction port 10c.

A blower for exhaust heat 2 as the other blower is attached to the exhaust port 10b. In the heat exhaust blower 2, the fan 3 and the drive motor (not shown) are unitized, and the fan 3 rotates around the drive shaft 4 of the drive motor facing in the vertical direction. The exhaust heat blower 2 introduces outside air into the exhaust heat passage R2 from the exhaust heat suction port 10d, exchanges heat with the exhaust heat heat exchanger 22, and then exhausts the heat through the exhaust heat passage R2. It is discharged upward from the mouth 10b as exhaust air A2.

With reference to FIGS. 7 and 8, an air conditioner blower 5 as one of the blowers is installed in the duct 16. In the air conditioner blower 5, the fan 54 and the drive motor 53 are unitized. The air-conditioning blower 5 introduces outside air into the air-conditioning passage R1 from the air-conditioning suction port 10c, exchanges heat with the air-conditioning heat exchanger 23, and then passes through the air-conditioning passage R1 to the front from the supply port 10a. It is supplied as air-conditioned air A1 (see FIG. 1A). The specific structure of the air conditioner blower 5 will be described in detail later.

Next, the structure of the duct 16 will be described. As shown in FIG. 2, the duct 16 includes an air conditioning heat exchanger 23, a connecting pipeline member 17 connected to the air conditioning heat exchanger 23, and an air supply fan box connected to the connecting pipeline member 17. It is mainly composed of 18 and a connecting pipeline member 19 that communicates the air supply fan box 18 and the supply port 10a. Specifically, the duct 16 has a substantially L-shape in a plan view extending horizontally to the left from the suction port 10c for air conditioning and then horizontally extending approximately 90 degrees forward toward the exhaust port 10b. is doing.

The air-conditioning heat exchanger 23 has a heat exchange section (not shown) having a plurality of fins through which the tube through which the heat medium is conducted meanders and extends, and a tubular shape covering the heat exchange section. A case 23a is provided, and the outside air introduced from the air-conditioning suction port 10c passes through the case 23a. The case 23a is arranged so as to face the left-right direction.

As shown in FIG. 3, the connecting pipeline member 17 has an upward U-shaped upper frame 171 and a lower frame 172, a top view substantially Z-shaped crank-shaped rear frame 173, and a top view substantially S-shaped crank. A front frame 174 is provided, and each frame 171 to 174 is configured to be fixed by welding or a fixing means such as a bolt and nut so as to form a square-shaped side view. The connecting pipeline member 17 is connected so as to communicate with the case 23a of the air conditioning heat exchanger 23. Since each of the frames 171 to 174 has a portion extending in a direction intersecting the portion constituting the outer surface of the connecting pipeline member 17, the structural strength against twisting of the connecting pipeline member 17 is high.

Further, an opening 174b that penetrates in the front-rear direction is formed in the plate portion 174a of the front frame 174 that constitutes the front surface of the connecting pipeline member 17, and the opening 174b is a lid that is detachably attached to the plate portion 174a. It is closed by the member 175. By removing the lid member 175, the opening 174b can be used as an inspection window, and the inside of the connecting pipeline member 17 can be appropriately maintained.

As shown in FIG. 4, the air supply fan box 18 includes a frame body 184 composed of a bottom panel 181 and a frame panel 182, and a frame 183, and a panel 185 attached to the upper surface, the back surface, and the left surface of the frame body 184. It is mainly composed of. The bottom panel 181 is made of a metal plate member, and includes a bottom surface portion 181a and a rising portion 181b that rises from the front side, the left side, and the rear side of the bottom surface portion 181a.

The frame panel 182 includes a right side surface portion 182a that rises upward from the right side of the bottom panel 181 and an extension portion 182b that extends to the left from the upper portion of the rising portion 181b on the front side and the rear side of the right side surface portion 182a, and the upper side of the right side surface portion 182a. It is provided with an extension portion 182c extending to the left from the. An opening 182d is formed in the central portion of the right side surface portion 182a so as to penetrate left and right and communicate with the connecting pipeline member 17. The bottom panel 181 and the frame panel 182 may be made of separate members, or may be formed by bending one metal plate.

The frame 183 is an L-shaped metal frame, and is connected to each other, the bottom panel 181 or the frame panel 182 via an L-shaped connecting metal fitting 186.

The frame body 184 in which the bottom panel 181 and the frame panel 182 and the frame 183 are assembled constitutes the skeleton of a substantially rectangular parallelepiped. Since the edges of the bottom panel 181 and the frame panel 182 and the frame 183 have a substantially L-shaped cross section, the structural strength of the frame body 184 is high.

As shown in FIG. 5, the panel 185 is arranged to face the inner plate 185a formed into a thin plate shape from a steel material such as galvalume and the inner plate 185a formed into a thin plate shape from a steel material such as galvalume. The space surrounded by the outer plate 185b, the resin edging material 185c fixed to the edges of the four sides of the inner plate 185a and the outer plate 185b, and the inner plate 185a, the outer plate 185b, and the edging material 185c is filled. It is composed of an effervescent filler 185d. The panel 185 is a so-called sandwich panel in which the filler 185d is sandwiched inside by the inner plate 185a, the outer plate 185b, and the edge material 185c, and is excellent in heat insulation and sound insulation. That is, the panel 185 functions as a soundproof panel.

As shown in FIG. 6, the panel 185 is attached to the outer surface side of the frame body 184 by bolts 8. Specifically, as shown in FIG. 6B, the panel 185 and the frame 183 of the frame body 184 (or the edge of the bottom panel 181 and the edge of the frame panel 182) are packings having an L-shaped cross section. It is connected via 9, and it is prevented that air leakage and sound leakage occur from the gap between each panel 185 and the frame body 184.

As shown in FIGS. 2 and 9, the connecting pipeline member 19 is configured by assembling the upper plate material 19a, the right plate material 19b, the left plate material 19c, and the lower plate material 19d having a U-shaped cross section in a square shape in front view. Has been done. The connecting pipeline member 19 connects between the opening on the front surface side of the air supply fan box 18 and the supply port 10a.

Next, the mode of assembling the air conditioner blower 5 to the air supply fan box 18 will be described with reference to FIGS. 7 and 8.

As shown in FIGS. 7 and 8, the air-conditioning blower 5 is attached to a frame panel 182 and has a base plate 51 having a through hole 51a penetrating left and right in the center, and a base plate 51 so as to communicate with the through hole 51a. Between the cylindrical member 52 fixed to the cylindrical member 52, the drive motor 53 arranged on the left side of the tubular member 52 and extending in the left-right direction, and between the tubular member 52 fixed to the drive shaft 53a and the drive motor 53. It is mainly composed of a fan 54 arranged in the air conditioner.

The base plate 51 is configured to have a U-shaped cross section including an upright surface portion 51b on which a through hole 51a is formed and an extending portion 51c extending from the four sides of the upright surface portion 51b toward the frame panel 182 side. The vertical surface portion 51b and the right side surface portion 182a of the frame panel 182 are fixed by bolts 55 and nuts 56 via packing 57. At this time, since the extended portion 51c of the base plate 51 is pressed against the right side surface portion 182a of the frame panel 182, the base plate 51 and the frame panel 182 are firmly fixed, and the base plate 51 and the frame panel 182 are firmly fixed by the packing 57. The sealability between the two is improved, and the vibration damping property is also excellent.

Further, a U-shaped frame 58 in front view is fixed to the base plate 51 so as to be separated from the front and rear. The frame 58 supports the drive motor 53 at a position to the left of the tubular member 52 in a state of being separated from the inner surfaces of the panel 185 and the bottom panel 181 of the air supply fan box 18. The tubular member 52 is fixed to the base plate 51 with the central axis oriented in the left-right direction.

The drive shaft 53a of the drive motor 53 faces coaxially with the central axis of the tubular member 52. The fan 54 rotates together with the drive shaft 53a of the drive motor 53, and blows the conditioned air A1 introduced through the tubular member 52 to the outer diameter side (see FIG. 9).

Next, the flow of the air-conditioned air A1 flowing in the air-conditioned passage R1 will be described with reference to FIG.

As shown in FIG. 9, when the spot air conditioner 1 is operated, the air conditioning blower 5 operates, so that the outside air A3 flows into the air conditioning passage R1 through the air conditioning suction port 10c. The outside air A3 flowing into the air-conditioning passage R1 is heat-exchanged when passing through the air-conditioning heat exchanger 23 to become the air-conditioned air A1. The air-conditioned air A1 passes through the connecting pipeline member 17 and the tubular member 52 of the air-conditioning blower 5, and is blown to the entire circumference on the outer diameter side by the fan 54 in the duct 16.

Most of the air-conditioned air A1 blown to the outer diameter side by the fan 54 flows around the outer diameter side of the fan 54 along the top panel 185, the back panel 185, and the bottom panel 181 and is a connecting pipe. It merges toward the road member 19 and flows through the ventilation space S1 that linearly extends from the connecting pipe member 19 to the supply port 10a as the main stream. Further, a part of the air-conditioned air A1 blown to the outer diameter side by the fan 54 passes through the connecting pipeline member 19 while moving to the retention space S2 on the left side panel 185 side, which is behind the fan 54. It is supplied in place from the supply port 10a. The residence space S2 communicates with the ventilation space S1 and the flow of the air-conditioned air A1 is slower than that of the ventilation space S1.

As described above, the drive motor 53 of the air-conditioning blower 5 is housed in the duct 16 separate from the housing 10 surrounded by the wall surface panel 12. That is, since the drive motor 53 is doubly surrounded by the housing 10 and the duct 16 inside the housing 10, the noise caused by the drive motor 53 can be reduced. Further, since the drive motor 53 of the air conditioner blower 5 is arranged at a position avoiding the ventilation space S1 between the fan 54 and the supply port 10a, that is, in the residence space S2, the air conditioner has passed through the air conditioner heat exchanger 23. The drive motor 53 can be housed in the duct 16 without obstructing the flow of the finished air A1.

Further, since a part of the air-conditioned air A1 also flows into the residence space S2, the drive motor 53 is cooled by the air-conditioned air A1 and it is possible to prevent the drive motor 53 from excessively generating heat.

Further, since the panel 185 of the air supply fan box 18 in which the drive motor 53 is arranged is a soundproof panel, the noise caused by the drive motor 53 can be effectively reduced by the panel 185 which is a soundproof panel.

Further, the panel 185 is a sandwich panel in which the filler 185d is filled between the two inner plates 185a and the outer plate 185b. The filler 185d enhances the soundproofing function, and the air conditioning passage R1 and the heat exhaust passage. The surfaces of the inner plate 185a and the outer plate 185b facing R2 can be smoothly configured. In other words, since the filler 185d having an uneven surface is not exposed in the duct 16 and the housing 10, the flow of the conditioned air A1 and the exhaust air A2 can be smoothed, and the inside of the duct 16 (that is, for air conditioning) can be smoothed. It is possible to reduce the pressure loss in the passage R1) and the housing 10 (that is, in the heat exhaust passage R2).

Further, since the filler 185d having a heat insulating function is adopted, it is possible to obtain a heat insulating effect between the housing 10 and the duct 16 in addition to the soundproofing function.

Further, the air-conditioning blower 5 is unitized by rotatably mounting a fan 54 around the drive shaft 53a of the drive motor 53, and the fan 54 blows air in the outer diameter direction. According to this, since the fan 54 blows air in the outer diameter direction, the drive motor 53 can be arranged in the residence space S2 avoiding the flow of the air-conditioned air A1.

Further, the drive shaft 53a of the drive motor 53 is arranged so as to be parallel to the central axis of the suction port 10c for air conditioning and orthogonal to the central axis of the supply port 10a, and the duct 16 has the suction port 10c and the supply port 10a. It extends in an L shape so as to connect with. According to this, since the air-conditioned air A1 blown in the outer diameter direction of the fan 54 flows linearly through the ventilation space S1 toward the supply port 10a, the pressure loss in the duct 16 can be reduced.

Further, the drive motor 53 is supported by the frame 58 in a state of being separated from the inner surfaces of the panel 185 and the bottom panel 181 of the air supply fan box 18, and the drive motor 53 does not come into contact with the panel 185 and the bottom panel 181. The vibration of the drive motor 53 is not transmitted to the panel 185 and the bottom panel 181 and noise can be suppressed.

Further, the air supply fan box 18 constituting the duct 16 is composed of a frame body 184 composed of a plurality of bottom panels 181, a frame panel 182, and a frame 183, and a panel 185 attached to the frame body 184 with bolts 8. Therefore, the structural strength of the duct 16 can be improved. Further, since the panel 185 can be attached to and detached from the frame body 184 with bolts 8, it is easy to perform maintenance in the duct 16 by removing the panel 185 from the frame body 184.

Although examples of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these examples, and any changes or additions that do not deviate from the gist of the present invention are included in the present invention. Will be.

For example, in the above embodiment, a mode in which a panel 185 having a soundproofing function and a heat insulating function is attached to the upper surface, the left side surface, and the back surface of the air supply fan box 18 constituting a part of the duct 16 is exemplified, but the duct has a soundproofing function and a soundproofing function. It may be composed of a panel having no heat insulating function. Even if the panel does not have the soundproofing function and the heat insulating function, the air-conditioning blower is doubly surrounded by the housing and the duct, so that the noise caused by the drive motor can be reduced.

Further, the entire outer surface of the duct may be composed of sandwich panels. That is, the outer surface of the connecting pipeline member 17, the air supply fan box 18, and the connecting pipeline member 19 may be configured by a sandwich panel. According to this, the soundproofing function and the heat insulating function of the duct can be enhanced.

Further, in the above embodiment, the embodiment in which the panel 185 is a sandwich panel is exemplified, but at least a member having a soundproof function can be freely changed.

Further, in the above embodiment, the embodiment in which the air-conditioning blower 5 in which the drive motor 53 and the fan 54 are unitized is illustrated, but the drive motor 53 is arranged at a position in the duct 16 avoiding the ventilation space S1. Therefore, the drive motor and the fan do not have to be unitized. For example, the drive shafts of the drive motors arranged in parallel and the rotation shafts of the fan may be connected by a belt.

Further, in the above embodiment, the form in which the duct 16 extends from the air-conditioning suction port 10c toward the exhaust port 10b in a substantially L-shape is exemplified, but the present invention is not limited to this, and the duct 16 may extend linearly. It may be curved and extended.

Further, in the above embodiment, the embodiment in which the drive motor 53 is supported in a state of being separated from the inner surfaces of the panel 185 and the bottom panel 181 is illustrated, but a part of the drive motor is one of the panels constituting the outer surface of the duct. The parts may be in contact with each other.

Further, in the above embodiment, the embodiment in which the panel 185 is attached to the frame body 184 is exemplified, but it may be composed of only the panel. Further, the panel may be fixed to the frame body by welding or the like. In this case, it is preferable to form the inspection window and the like separately.

1 Spot air conditioner 2 Exhaust heat blower (the other blower)
5 Air-conditioning blower (one blower)
8 Bolt 10 Housing 10a Supply port 10b Exhaust port 10c, 10d Suction port 11 Frame body 12 Wall panel 16 Duct 18 Air supply fan box 20 Heat pump 22 Heat exhaust heat exchanger 23 Air conditioning heat exchanger 53 Drive motor 53a Drive shaft 54 Fan 181 Bottom panel 182 Frame panel 183 Frame 184 Frame body 185 panel (soundproof panel, sandwich panel)
185a Inner plate 185b Outer plate 185c Edge material 185d Filler A1 Air-conditioned air A2 Exhaust air A3 Outside air R1 Air-conditioned passage R2 Exhaust heat passage S1 Ventilation space S2 Retention space

Claims (7)

A spot air conditioner in which a heat exchanger for air conditioning and a heat exchanger for exhaust heat are housed in one housing.
The housing has an air conditioning passage in which the outside air taken in from the suction port supplies the air-conditioned air whose heat has been exchanged with the heat exchanger for air conditioning from the supply port by one blower, and the outside air taken in from the other suction port. Provided with the heat exchanger for exhaust heat and a heat exhaust passage for exhausting the heat-exchanged exhaust air from the exhaust port by the other blower.
The air-conditioning passage is separated from the heat exhaust passage by a tubular duct composed of panels, and one of the blowers is installed inside the duct.
One of the blowers includes a drive motor and a fan, and the drive motor is a spot air conditioner arranged at a position avoiding a ventilation space between the fan and the supply port in the duct. .. The spot air conditioner according to claim 1, wherein the panel is at least a soundproof panel. The spot air conditioner according to claim 2, wherein the soundproof panel is a sandwich panel in which a filler is filled between two plate materials. The one blower used for the air conditioner is unitized by rotatably mounting the fan around the drive shaft of the drive motor, and the fan blows air in the outer diameter direction. The spot air conditioner according to any one of Items 1 to 3. The drive shaft of the drive motor is arranged so as to be parallel to the central axis of the suction port and intersect the central axis of the supply port, and the duct is L so as to connect the suction port and the supply port. The spot air conditioner according to claim 4, wherein the spot air conditioner extends in a shape. The spot air conditioner according to any one of claims 1 to 5, wherein the drive motor is arranged apart from the inner surface of the panel. The spot air conditioner according to any one of claims 1 to 6, wherein the duct is composed of a frame body composed of a plurality of frames and the panel attached to the frame body with bolts. ..

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