Elevator cooling system having lateral airflow circulation structure

Abstract

The present invention relates to an elevator cooling system of a lateral airflow circulation structure, which measures acceleration of a moving body, forms an intake lateral airflow which is an airflow of a path through which internal air inside a car flows into a first side wall duct in a direction toward a side wall portion of the car covered by the first side wall duct and then is suctioned into an air conditioning module through the first side wall duct, and forms a discharge lateral airflow which is an airflow of a path through which discharged air of the air conditioning module flows into a second side wall duct and then is discharged from a side wall portion of the car covered by the second side wall duct through the second side wall duct, whereby inconvenience of passengers due to cold wind is minimized while the entire interior of the elevator car can be quickly cooled.

Description

Elevator cooling system with cross-wind circulation structure

[0001] It relates to an elevator cooling system for cooling an elevator car.

[0002] Elevators, installed in multi-story high-rise buildings, are a means of vertically transporting people, cargo, and other items. To provide a comfortable environment for passengers, an increasing number of elevators are equipped with their own air conditioning functions. Conventional elevator cooling systems, such as those described in Korean Patent No. 10-2446006, "Heating and Cooling Device for Elevators," and Korean Patent No. 10-1093191, "Heating and Cooling Device for Elevators," typically feature air conditioning units mounted above the elevator car.

[0003] Because the air conditioning equipment is mounted on the elevator car, the conventional elevator cooling system cools the air inside the elevator car by sucking in the air inside the elevator car through the ceiling of the elevator car, cooling the sucked air, and then discharging the air inside the elevator car through the ceiling of the elevator car. According to this conventional elevator cooling system, there was a problem in that the cold air was discharged from the ceiling of the elevator car toward the head of the passenger, so the cold air directly hit the passenger's scalp or facial skin, causing the passenger's hair to fly, causing the passenger to feel uncomfortable.

[0004] In recent years, elevator cooling systems have increasingly been designed to automatically shut off air conditioning when the elevator car remains stationary for a certain period of time, in an effort to conserve energy. Conventional elevator cooling systems, however, rely on cold air blowing from the car's ceiling to cool the interior of the car. This, however, leaves the space beneath the car uncooled for extended periods of time, requiring considerable time for the temperature within the entire car to drop evenly.

[0005] The present invention provides an elevator cooling system capable of rapidly cooling the entire interior of an elevator car while minimizing passenger discomfort caused by cold air. Furthermore, the present invention provides an elevator including such an elevator cooling system. The technical challenges described above are not limited to these, and other technical challenges may be derived from the following description.

[0006] An elevator cooling system according to one aspect of the present invention comprises: an air conditioning module mounted in a car of an elevator to cool the air inside the car; a first side wall duct attached to the outside of a side wall of the car to form a passage for air to flow along the outside of the side wall of the car and be sucked into the air conditioning module; a second side wall duct attached to the outside of the side wall of the car to form a passage for air to flow along the outside of the side wall of the car and be discharged from the air conditioning module; a first side wall forming module for forming an intake side wind, which is an air flow along a path in which the air inside the car is sucked into the air conditioning module through the first side wall duct after being introduced into the first side wall duct in a direction toward a side wall portion of the car covered by the first side wall duct; And it includes a second side wind forming module that forms a discharge side wind, which is an air flow of a path in which the discharge air of the air conditioner module is discharged from a side wall portion of the car covered by the second side wall duct through the second side wall duct after the discharge air of the air conditioner module is introduced into the second side wall duct.

[0007] The first side wall duct may be formed in the shape of a straight pipe with a cross-section of "[" and attached to one side of the outer surface of the side wall of the car, and the second side wall duct may be formed in the shape of a straight pipe with a cross-section of "[" and attached to the other side of the outer surface of the side wall of the car.

[0008] The above first side wind forming module is built into the first side wall duct and can horizontally suck air from the inside of the car, thereby allowing the air inside the car to flow into the first side wall duct in a direction toward the side wall portion of the car covered by the first side wall duct.

[0009] The above first side wind forming module may include a fan unit that vertically sucks in air introduced into the first side wall duct, thereby forming a flow of air that flows vertically along the outer surface of the side wall of the car through the first side wall duct.

[0010] The fan unit may include an upper fan blade that sucks air introduced into the first side wall duct in a downward direction of the first side wall duct and converts the flow direction of the air sucked in the downward direction to a horizontal direction, thereby discharging the air sucked in the downward direction through a first discharge hole in a side wall portion of the car covered by the first side wall duct; and a lower fan blade that sucks air introduced into the first side wall duct in an upward direction of the first side wall duct and converts the flow direction of the air sucked in the upward direction to a horizontal direction, thereby discharging the air sucked in the upward direction through a second discharge hole in a side wall portion of the car covered by the first side wall duct.

[0011] A suction hole is formed in a side wall portion of the car covered by the first side wall duct, through which air sucked from the inside of the car passes, and the air inside the car is sucked vertically to the opening surface of the suction hole in the side wall portion of the car covered by the first side wall duct by the downward suction force of the upper fan blade, so that the air inside the car can be sucked into the inside of the first side wall duct through the suction hole in the side wall portion of the car covered by the first side wall duct.

[0012] The first side wall duct is formed in the shape of a straight pipe with a cross section of "[" having one end open and the other end closed, and is attached to the outer surface of the side wall of the car, and the air inside the first side wall duct flows vertically along the outer surface of the side wall of the car and is introduced into the intake port of the air conditioner module from one end of the first side wall duct, and an additional intake hole may be formed in the side wall portion of the car between the one end of the first side wall duct and the intake hole so that air is sucked from the inside of the car into the first side wall duct by the suction force of the intake port of the air conditioner module and the downward suction force of the upper fan blade.

[0013] The second side wind forming module may be built into the second side wall duct to horizontally suck air from the inside of the car, thereby allowing the air inside the car to flow into the first side wall duct in a direction toward the side wall portion of the car covered by the second side wall duct.

[0014] The second side wind forming module may include a fan unit that vertically sucks in air introduced into the second side wall duct, thereby forming a flow of air that flows vertically along the outer surface of the side wall of the car through the second side wall duct.

[0015] The above-mentioned fat unit may include an upper fan blade that sucks air introduced into the second side wall duct in a downward direction of the second side wall duct and converts the flow direction of the air sucked in the downward direction to a horizontal direction, thereby discharging the air sucked in the downward direction through a first discharge hole of a side wall portion of the car covered by the second side wall duct; and a lower fan blade that sucks air introduced into the second side wall duct in an upward direction of the second side wall duct and converts the flow direction of the air sucked in the upward direction to a horizontal direction, thereby discharging the air sucked in the upward direction through a second discharge hole of a side wall portion of the car covered by the second side wall duct.

[0016] A suction hole is formed in a side wall portion of the car covered by the second side wall duct, through which air sucked from the inside of the car passes, and the air inside the car is sucked vertically to the opening surface of the suction hole in the side wall portion of the car covered by the second side wall duct by the downward suction force of the upper fan blade, so that the air inside the car can be sucked into the inside of the second side wall duct through the suction hole in the side wall portion of the car covered by the second side wall duct.

[0017] The second side wall duct is formed in the shape of a straight pipe with a cross section of "[" having one end open and the other end closed, and is attached to the outer surface of the side wall of the car, and air cooled by the air conditioner module flows from the discharge port of the air conditioner module into one end of the second side wall duct, and the air flowing into one end of the second side wall duct and the air sucked into the interior of the second side wall duct through the suction hole can be mixed and flow downward along the outer surface of the side wall of the car.

[0018] According to another aspect of the present invention, an elevator including the elevator cooling system is provided.

[0019] By forming an intake side wind, which is an air flow in a path in which the air inside the car is drawn into the first side wall duct in a direction toward the side wall portion of the car covered by the first side wall duct, and then is sucked into the air conditioner module through the first side wall duct, and by forming an exhaust side wind, which is an air flow in a path in which the air discharged from the air conditioner module is drawn into the second side wall duct and then is discharged from the side wall portion of the car covered by the second side wall duct through the second side wall duct, the entire interior of the elevator car can be quickly cooled while minimizing discomfort to passengers due to cold wind.

[0020] In conventional elevator cooling systems, there was a problem that cold air was discharged from the ceiling of the elevator car toward the head of the passenger, so that the cold air directly touched the passenger's scalp or facial skin and caused the passenger's hair to fly, causing the passenger to feel uncomfortable. In the elevator cooling system according to the present invention, cold air was discharged from the side of the elevator car, so that the cold air discharged from the air conditioner module was directed toward the passenger's torso covered in clothing, and as a result, the problem of cold air directly touching the passenger's scalp or facial skin and causing the passenger's hair to fly can be solved.

[0021] In addition, in the elevator cooling system according to the present invention, the air inside the elevator car is sucked in through suction holes formed at the upper and lower sides of the interior of the elevator car, and cold air is discharged toward the opposite side through a plurality of discharge holes arranged lengthwise on both sides of the elevator, thereby forming an air circulation structure, so that the temperature inside the entire elevator car can be rapidly lowered. The effect is not limited to the above-described effect, and other effects may be derived from the following description.

[0022] Figure 1 is a configuration diagram of an elevator according to one embodiment of the present invention.

[0023] Figure 2 is a front perspective view of the car (1) shown in Figure 1.

[0024] Fig. 3 is a rear perspective view of the car (1) shown in Fig. 1.

[0025] Figure 4 is a front perspective view of the elevator cooling system illustrated in Figures 2 and 3.

[0026] Figures 5 and 6 are front exploded views of the elevator cooling system illustrated in Figure 4.

[0027] Figures 7 and 8 are rear exploded views of the elevator cooling system illustrated in Figure 4.

[0028] Figure 9 is an enlarged view of the upper left fan unit (43) shown in Figures 6 and 7.

[0029] Figure 10 is an enlarged view of the upper right fan unit (53) shown in Figures 6 and 7.

[0030] Figure 11 is an enlarged top view of the elevator cooling system illustrated in Figure 6.

[0031] Fig. 12 is a drawing showing the side wind circulation structure of the elevator cooling system shown in Figs. 4 to 11.

[0032] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The embodiments of the present invention to be described below relate to an elevator cooling system capable of quickly cooling the entire interior of an elevator car while minimizing discomfort to passengers due to cold wind, and an elevator including such an elevator cooling system. Hereinafter, such elevator cooling system and elevator will be briefly referred to as "elevator cooling system" and "elevator." The "vertical direction" in the present embodiments described below means the direction of the height of the elevator car, which is a direction parallel to the side of the elevator car, and the "horizontal direction" means a direction parallel to the ceiling or floor of the elevator car. The "vertical direction" is classified into an upper vertical direction and a lower vertical direction, which may be briefly referred to as "upper direction" and "lower direction," respectively.

[0033] FIG. 1 is a block diagram of an elevator according to one embodiment of the present invention. Referring to FIG. 1, the elevator according to this embodiment comprises a car (1), a driving unit (2), a rope (3), a weight (4), a control panel (5), and an elevator cooling system. The car (1) provides a space for passengers to board. Representative examples of passengers include passengers, but also include wheelchairs, animals, etc. The rope (3) has one end connected to the car (1) and the other end connected to a weight (4). The driving unit (2) comprises a motor, a pulley, etc., and moves the rope (3) to raise or lower the car (1). The control panel (5) controls the operation of the driving unit (2) according to the passenger's operation. The feature of this embodiment lies in the elevator cooling system that can quickly cool the entire interior of the elevator car while minimizing passenger discomfort due to cold air. Therefore, a detailed description of the means for raising or lowering the car (1) will be omitted.

[0034] FIG. 2 is a front perspective view of the car (1) illustrated in FIG. 1, and FIG. 3 is a rear perspective view of the car (1) illustrated in FIG. 1. Referring to FIGS. 2 and 3, the car (1) of the present embodiment has a rectangular box shape composed of four side wall plates (11 to 14), a ceiling plate (15), and a floor plate (16). The four side wall plates (11 to 14) are connected at right angles to each other, and are composed of a front wall plate (11), a rear wall plate (12), a left wall plate (13), and a right wall plate (14). An opening is formed in the front wall plate (11) of the car (1) for passengers to enter and exit, and an entrance door that is electrically opened and closed according to passenger operation is installed in the opening of the front wall plate of the car (1). As illustrated in FIGS. 2 and 3, the elevator cooling system according to the present embodiment is installed on the upper surface of the ceiling plate and the outer surface of the rear wall plate of the car (1).

[0035] Fig. 4 is a front perspective view of the elevator cooling system illustrated in Figs. 2 and 3, Figs. 5 and 6 are front exploded views of the elevator cooling system illustrated in Fig. 4, and Figs. 7 and 8 are rear exploded views of the elevator cooling system illustrated in Fig. 4. Fig. 5 illustrates the elevator cooling system illustrated in Fig. 4 with the rear wall plate (12) of the car removed. As illustrated in Fig. 4, among the rear wall plate (12) of the car (1), the side wall portion of the car (1) covered by the first side wall duct (20) and the side wall portion of the car (1) covered by the second side wall duct (30) may be manufactured in a form separated from other portions of the rear wall plate (12), or may be manufactured as an integral part with other portions.

[0036] FIG. 6 illustrates a state in which the frames for fixing the upper filters (41, 51), the lower filters (47, 57), the upper fan units (43, 53), and the lower fan units (44, 54) are removed from the elevator cooling system illustrated in FIG. 5. FIG. 7 illustrates a state in which the first side wall duct (20) and the second side wall duct (30) are removed from the elevator cooling system illustrated in FIG. 3. FIG. 8 illustrates a state in which the upper fan units (43, 53), the lower fan units (44, 54), and the heaters (45, 55) are removed from the elevator cooling system illustrated in FIG. 7. The control panel (48) serves to control the operation of the upper sterilizer (42, 52), upper fan unit (43, 53), lower fan unit (44, 54), heater (45, 55), and lower sterilizer (46, 56). Since the control operation of the control panel (48) is not related to the features of the present embodiment, further detailed description is omitted.

[0037] Referring to FIGS. 4 to 8, the elevator cooling system according to the present embodiment is composed of an air conditioner module (10), a first side wall duct (20), a second side wall duct (30), a first side wind forming module (40), a second side wind forming module (50), an intake pipe (60), and an exhaust pipe (70). The elevator cooling system according to the present embodiment further includes various frames and bolts and other connecting members for attaching and fixing the first side wall duct (20) and the second side wall duct (30) to the outer surface of the rear side wall plate of the car (1), but a detailed description thereof is omitted since it is not related to the features of the present embodiment.

[0038] The air conditioner module (10) is mounted on the upper surface of the ceiling plate (15) of the car (1) and serves to cool the air inside the car (1). The air conditioner module (10) is composed of a housing and a compressor, a condenser, an expansion valve, an evaporator, an intake fan, an exhaust fan, etc. built into the housing. The air inside the car (1), which is introduced into the intake port of the air conditioner module housing by the intake fan, is cooled using the compressor, the condenser, the expansion valve, and the evaporator, and then the cooled air is discharged through the discharge port of the air conditioner module housing by the exhaust fan. The cooling operation of the air conditioner module (10) is a general technique unrelated to the features of the present embodiment, and therefore, a detailed description thereof is omitted.

[0039] The first side wall duct (20) is attached to the outer side of the rear side wall plate (12) among the side walls of the car (1) and forms a passage for air to flow along the outer surface of the rear side wall plate among the side walls of the car (1) and be sucked into the air conditioner module (10). As illustrated in FIGS. 2 to 6, the first side wall duct (20) is formed in the shape of a straight pipe with a cross-section of "[" having one end open and the other end closed, and is attached to one edge of the outer surface of the side wall of the car (1). As illustrated in FIGS. 2 and 3, the first side wall duct (20) is formed in the shape of a straight pipe with a cross-section of "[" having an upper end open and a lower end closed, and is attached to the left edge of the outer surface of the rear side wall plate of the car (1). In this way, the first side wall duct (20) is attached to the left edge of the outer surface of the rear side wall plate of the car (1) and forms a passage for air to flow along the outer surface of the rear side wall plate of the side wall of the car (1) and be sucked into the air conditioner module (10). The air inside the first side wall duct (20) flows upward along the outer surface of the rear side wall plate of the side wall of the car (1) and is introduced into the intake port of the air conditioner module (10) from the upper end of the first side wall duct (20).

[0040] As illustrated in FIGS. 4 and 8, a left upper suction hole (21), four left discharge holes (22 to 25), and a left lower suction hole (26) are formed from top to bottom on the side wall portion of the car (1) covered by the first side wall duct (20). Air sucked from the inside of the car (1) into the first side wall duct (20) passes through the left upper suction hole (21) and the left lower suction hole (26). Air discharged from the first side wall duct (20) into the inside of the car (1) passes through the four left discharge holes (22 to 25).

[0041] The first side wind forming module (40) is built into the first side wall duct (20) and forms an intake side wind, which is an air flow in a path in which the internal air of the car (1) flows into the first side wall duct (20) in a direction toward the side wall portion of the car (1) covered by the first side wall duct (20) and is then sucked into the air conditioner module (10) through the first side wall duct (20). The first side wind forming module (40) of the present embodiment sucks air horizontally from the inside of the car (1), thereby allowing the internal air of the car (1) to flow into the first side wall duct (20) in a direction toward the inner surface of the side wall portion of the car (1) covered by the first side wall duct (20).

[0042] Referring to Figures 4 to 8, the first side wind forming module (40) is composed of a left upper filter (41), a left upper sterilizer (43), a left upper fan unit (43), a left lower fan unit (44), a left heater (45), a left lower sterilizer (46), and a left lower filter (47). The left upper filter (41), the left upper sterilizer (42), the left upper fan unit (43), the left lower fan unit (44), the left heater (45), the left lower sterilizer (46), and the left lower filter (47) are attached and fixed in a manner that the left upper filter (41), the left upper sterilizer (42), the left upper fan unit (43), the left lower fan unit (44), the left heater (45), the left lower sterilizer (46), and the left lower filter (47) are installed inside the first side wall duct (20).

[0043] The upper left filter (41) is installed in the upper left suction hole (21) and serves to purify the air sucked from the inside of the car (1) to the first side wall duct (20) through the upper left suction hole (21). The upper left filter (41) can be implemented as a HEPA filter that filters fine particles in the air sucked from the inside of the car (1) to the first side wall duct (20) through the upper left suction hole (21).

[0044] The upper left sterilizer (42) is installed between the upper left suction hole (21) and the upper left fan unit (43) and serves to sterilize air that flows downward in a vertical direction toward the upper left fan unit (43) among the air that flows into the first side wall duct (20) through the upper left suction hole (21). The upper left sterilizer (42) can be implemented in a way that sterilizes air using at least one of ultraviolet rays and a photocatalyst.

[0045] The upper left fan unit (43) is installed at a position close to the upper left suction hole (21) and vertically sucks in the air introduced into the first side wall duct (20), thereby forming an air flow that flows vertically along the outer surface of the side wall of the car (1) through the first side wall duct (20). The upper left fan unit (43) sucks in the air introduced into the first side wall duct (20) in the upper and lower directions of the first side wall duct (20), thereby forming an air flow that flows upward along the outer surface of the side wall of the car (1) through the first side wall duct (20) and an air flow that flows downward along the outer surface of the side wall of the car (1) through the first side wall duct (20).

[0046] Fig. 9 is an enlarged view of the upper left fan unit (43) illustrated in Figs. 6 and 7. Referring to Fig. 9, the upper left fan unit (43) is composed of an upper fan blade (431), a lower fan blade (432), a fan motor (433), and a fan housing (434). Each of the upper fan blade (431) and the lower fan blade (432) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright. The fan motor (433) is attached to the outer side of the side wall of the car (1) covered by the first side wall duct (20) and rotates the upper fan blade (431) and the lower fan blade (432). The fan housing (434) is formed in a shape that surrounds the upper fan blade (431), the lower fan blade (432), and the fan motor (433), and serves to form an air passage for the upper left fan unit (43).

[0047] The upper fan blade (431) of the left upper fan unit (43) sucks air introduced into the first side wall duct (20) in the downward direction of the first side wall duct (20), and converts the flow direction of the air sucked in the downward direction to a horizontal direction, thereby discharging the air sucked in the downward direction through the first left discharge hole (22) located at the uppermost among the four left discharge holes (22 to 25) of the side wall portion of the car (1) covered by the first side wall duct (20). Here, the “horizontal direction” means the direction from the inner surface of the rear side wall plate (12) of the car (1) toward the inner surface of the front side wall plate (11).

[0048] As illustrated in Fig. 9, the upper fan blade (431) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright, and as they rotate, the upper fan blade sucks air introduced into the first side wall duct (20) in the downward direction of the first side wall duct (20) and can change the flow direction of the air sucked in the downward direction to a horizontal direction. By the downward suction force of the upper fan blade (431), the air inside the car (1) is sucked vertically into the opening surface of the upper left suction hole (21) formed in the side wall portion of the car (1) covered by the first side wall duct (20), and the air inside the car (1) is sucked into the interior of the first side wall duct (20) through the upper left suction hole (21).

[0049] The lower fan blade (432) of the upper left fan unit (43) sucks air introduced into the first side wall duct (20) in the upper direction of the first side wall duct (20), and converts the flow direction of the air sucked in the upper direction to a horizontal direction, thereby discharging the air sucked in the upper direction through the second left discharge hole (23) located second from the top among the four left discharge holes (22 to 25) of the side wall portion of the car (1) covered by the first side wall duct (20). Here, the “horizontal direction” means the direction from the inner surface of the rear side wall plate (12) of the car (1) toward the inner surface of the front side wall plate (11).

[0050] As illustrated in FIG. 9, the lower fan blade (432) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright, and as they rotate, the lower fan blade sucks air introduced into the first side wall duct (20) in the upward direction of the first side wall duct (20) and can change the flow direction of the air sucked in the upward direction to a horizontal direction. By the upward suction force of the lower fan blade (432), the air inside the car (1) is sucked vertically into the opening surface of the left lower suction hole (26) formed in the side wall portion of the car (1) covered by the first side wall duct (20), and the air inside the car (1) is sucked into the inside of the first side wall duct (20) through the left lower suction hole (26).

[0051] The left lower fan unit (44) is installed at a position close to the left lower suction hole (26) and vertically sucks in the air introduced into the first side wall duct (20), thereby forming an air flow that flows vertically along the outer surface of the side wall of the car (1) through the first side wall duct (20). The left lower fan unit (44) sucks in the air introduced into the first side wall duct (20) in the upper and lower directions of the first side wall duct (20), thereby forming an air flow that flows upward along the outer surface of the side wall of the car (1) through the first side wall duct (20) and an air flow that flows downward along the outer surface of the side wall of the car (1) through the first side wall duct (20).

[0052] Referring to Fig. 9, the lower left fan unit (44) is composed of an upper fan blade (441), a lower fan blade (442), a fan motor (443), and a fan housing (444). Each of the upper fan blade (441) and the lower fan blade (442) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright. The fan motor (443) is attached to the outer side of the side wall of the car (1) covered by the first side wall duct (20) and rotates the upper fan blade (441) and the lower fan blade (442). The fan housing (434) is formed in a shape that surrounds the upper fan blade (441), the lower fan blade (442), and the fan motor (443) and serves to form an air passage of the lower left fan unit (44).

[0053] The upper fan blade (441) of the left lower fan unit (44) sucks air introduced into the first side wall duct (20) in the downward direction of the first side wall duct (20), and converts the flow direction of the air sucked in the downward direction to a horizontal direction, thereby discharging the air sucked in the downward direction through the third left discharge hole (24) located second from the bottom among the four left discharge holes (22-25) of the side wall portion of the car (1) covered by the first side wall duct (20). Here, the “horizontal direction” means the direction from the inner surface of the rear side wall plate (12) of the car (1) toward the inner surface of the front side wall plate (11).

[0054] As illustrated in Fig. 9, the upper fan blade (441) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright, and as they rotate, the upper fan blade sucks air introduced into the first side wall duct (20) in the downward direction of the first side wall duct (20) and can change the flow direction of the air sucked in the downward direction to a horizontal direction. By the downward suction force of the upper fan blade (441), the air inside the car (1) is sucked vertically into the opening surface of the upper left suction hole (21) formed in the side wall portion of the car (1) covered by the first side wall duct (20), and the air inside the car (1) is sucked into the interior of the first side wall duct (20) through the upper left suction hole (21).

[0055] The lower fan blade (442) of the left lower fan unit (44) sucks air introduced into the first side wall duct (20) in the upper direction of the first side wall duct (20), and converts the flow direction of the air sucked in the upper direction to a horizontal direction, thereby discharging the air sucked in the upper direction through the fourth left discharge hole (25) located at the bottommost from the top among the four left discharge holes (22-25) of the side wall portion of the car (1) covered by the first side wall duct (20). Here, the “horizontal direction” means the direction from the inner surface of the rear side wall plate (12) of the car (1) toward the inner surface of the front side wall plate (11).

[0056] As illustrated in FIG. 9, the lower fan blade (432) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright, and as they rotate, the lower fan blade (432) sucks air introduced into the first side wall duct (20) in the upward direction of the first side wall duct (20) and can change the flow direction of the air sucked in the upward direction to a horizontal direction. By the upward suction force of the lower fan blade (442), the air inside the car (1) is sucked vertically into the opening surface of the left lower suction hole (26) formed in the side wall portion of the car (1) covered by the first side wall duct (20), and the air inside the car (1) is sucked into the inside of the first side wall duct (20) through the left lower suction hole (26).

[0057] The left heater (45) is installed on the upper and lower sides of the left lower fan unit (43) to heat the air sucked into the left lower fan unit (43) in the upper direction of the first side wall duct (20) and the air sucked into the left lower fan unit (43) in the lower direction of the first side wall duct (20). The left heater (45) is composed of a left upper heater (451) installed on the upper side of the left lower fan unit (43) and a left lower heater (452) installed on the lower side of the left lower fan unit (43). Each of the left upper heater (451) and the left lower heater (452) can be implemented as a PTC (positive temperature coefficient) heater. In a season when the internal temperature of the car (1) becomes very low, heating can be provided instead of cooling the car (1).

[0058] The left lower sterilizer (46) is installed between the left lower fan unit (44) and the left lower suction hole (26) and serves to sterilize air that flows upward and vertically toward the left lower fan unit (44) among the air that flows into the first side wall duct (20) through the left lower suction hole (26). The left lower sterilizer (46) can be implemented in a way that sterilizes air using at least one of ultraviolet rays and a photocatalyst.

[0059] The left lower filter (47) is installed in the left lower suction hole (26) and serves to purify the air sucked from the inside of the car (1) to the first side wall duct (20) through the left lower suction hole (26). The left lower filter (47) can be implemented as a HEPA filter that filters fine particles in the air sucked from the inside of the car (1) to the first side wall duct (20) through the left lower suction hole (26).

[0060] The second side wall duct (30) is attached to the outer side of the rear side wall plate (12) among the side walls of the car (1) to form a passage for air that is discharged from the air conditioner module (10) and flows along the outer surface of the rear side wall plate among the side walls of the car (1). As illustrated in FIGS. 2 to 6, the second side wall duct (30) is formed in the shape of a straight pipe with a cross-section of "[" having one end open and the other end closed, and is attached to the other side of the outer surface of the side wall of the car (1). As illustrated in FIGS. 2 and 3, the second side wall duct (30) is formed in the shape of a straight pipe with a cross-section of "[" having an upper end open and a lower end closed, and can be attached to the right edge of the outer surface of the rear side wall plate of the car (1). In this way, the second side wall duct (30) is attached to the right edge of the outer surface of the rear side wall plate of the car (1) to form a passage for air discharged from the air conditioner module (10) and flowing along the outer surface of the rear side wall plate of the side wall of the car (1). The air discharged through the discharge port of the air conditioner module (10) flows into the upper end of the second side wall duct (30) and flows downward along the outer surface of the rear side wall plate of the side wall of the car (1) inside the second side wall duct (30).

[0061] As illustrated in FIGS. 4 and 8, the side wall portion of the car (1) covered by the second side wall duct (30) is formed with, from top to bottom, a right upper suction hole (31), four right discharge holes (32 to 35), and a right lower suction hole (36). Air sucked from the inside of the car (1) into the second side wall duct (30) passes through the right upper suction hole (31) and the right lower suction hole (36). Air discharged from the second side wall duct (30) into the inside of the car (1) passes through the four right discharge holes (32 to 35).

[0062] The second side wind forming module (50) is built into the second side wall duct (30) and forms a discharge side wind, which is an air flow in a path in which the discharged air of the air conditioner module (10) flows into the second side wall duct (30) and then is discharged from the side wall portion of the car (1) covered by the second side wall duct (30) through the second side wall duct (30). The second side wind forming module (50) of the present embodiment horizontally sucks air from the inside of the car (1), thereby causing the internal air of the car (1) to flow into the second side wall duct (30) in a direction toward the inner surface of the side wall portion of the car (1) covered by the second side wall duct (30).

[0063] Referring to Figures 4 to 8, the second side wind forming module (50) is composed of a right upper filter (51), a right upper sterilizer (53), a right upper fan unit (53), a right lower fan unit (54), a right heater (55), a right lower sterilizer (56), and a right lower filter (57). The right upper filter (51), the right upper sterilizer (52), the right upper fan unit (53), the right lower fan unit (54), the right heater (55), the right lower sterilizer (56), and the right lower filter (57) are attached and fixed in a manner that the right upper filter (51), the right upper sterilizer (52), the right upper fan unit (53), the right lower fan unit (54), the right heater (55), the right lower sterilizer (56), and the right lower filter (57) are installed inside the second side wall duct (30).

[0064] The upper right filter (51) is installed in the upper right suction hole (31) and serves to purify the air sucked from the inside of the car (1) to the second side wall duct (30) through the upper right suction hole (31). The upper right filter (51) can be implemented as a HEPA filter that filters fine particles in the air sucked from the inside of the car (1) to the second side wall duct (30) through the upper right suction hole (31).

[0065] The upper right sterilizer (52) is installed between the upper right suction hole (31) and the upper right fan unit (53) and serves to sterilize air that flows downward in a vertical direction toward the upper right fan unit (53) among the air that flows into the second side wall duct (30) through the upper right suction hole (31). The upper right sterilizer (52) can be implemented in a way that sterilizes air using at least one of ultraviolet rays and a photocatalyst.

[0066] The upper right fan unit (53) is installed at a position close to the upper right suction hole (31) and vertically sucks in the air introduced into the second side wall duct (30), thereby forming an air flow that flows vertically along the outer surface of the side wall of the car (1) through the second side wall duct (30). The upper right fan unit (53) sucks in the air introduced into the second side wall duct (30) in the upper and lower directions of the second side wall duct (30), thereby forming an air flow that flows upward along the outer surface of the side wall of the car (1) through the second side wall duct (30) and an air flow that flows downward along the outer surface of the side wall of the car (1) through the second side wall duct (30).

[0067] Fig. 10 is an enlarged view of the upper right fan unit (53) illustrated in Figs. 6 and 7. Referring to Fig. 10, the upper right fan unit (53) is composed of an upper fan blade (531), a lower fan blade (532), a fan motor (533), and a fan housing (534). Each of the upper fan blade (531) and the lower fan blade (532) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright. The fan motor (533) is attached to the outer side of the side wall of the car (1) covered by the first side wall duct (20) and rotates the upper fan blade (531) and the lower fan blade (532). The fan housing (534) is formed in a shape that surrounds the upper fan blade (531), the lower fan blade (532), and the fan motor (533), and serves to form an air passage for the upper right fan unit (53).

[0068] The upper fan blade (531) of the upper right fan unit (53) sucks air introduced into the second side wall duct (30) in the downward direction of the second side wall duct (30), and converts the flow direction of the air sucked in the downward direction to a horizontal direction, thereby discharging the air sucked in the downward direction through the first right discharge hole (32) located at the uppermost among the four right discharge holes (32 to 35) of the side wall portion of the car (1) covered by the second side wall duct (30). Here, the “horizontal direction” means the direction from the inner surface of the rear side wall plate (12) of the car (1) toward the inner surface of the front side wall plate (11).

[0069] As illustrated in Fig. 10, the upper fan blade (531) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright, and as they rotate, the upper fan blade sucks air introduced into the second side wall duct (30) in the downward direction of the second side wall duct (30) and can change the flow direction of the air sucked in the downward direction to a horizontal direction. By the downward suction force of the upper fan blade (531), the air inside the car (1) is sucked vertically into the opening surface of the upper right suction hole (31) formed in the side wall portion of the car (1) covered by the second side wall duct (30), and the air inside the car (1) is sucked into the interior of the second side wall duct (30) through the upper right suction hole (31).

[0070] The lower fan blade (532) of the upper right fan unit (53) sucks air introduced into the second side wall duct (30) in the upward direction of the second side wall duct (30), and changes the flow direction of the air sucked in the upward direction to a horizontal direction, thereby discharging the air sucked in the upward direction through the second right discharge hole (33) located second from the top among the four right discharge holes (32 to 35) of the side wall portion of the car (1) covered by the second side wall duct (30). Here, the “horizontal direction” means the direction from the inner surface of the rear side wall plate (12) of the car (1) toward the inner surface of the front side wall plate (11).

[0071] As illustrated in Fig. 10, the lower fan blade (532) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright, and as they rotate, the air introduced into the second side wall duct (30) is sucked in the upward direction of the second side wall duct (30), and the flow direction of the air sucked in the upward direction can be changed to a horizontal direction. By the upward suction force of the lower fan blade (532), the air inside the car (1) is sucked vertically into the opening surface of the lower right suction hole (36) formed in the side wall portion of the car (1) covered by the second side wall duct (30), and the air inside the car (1) is sucked into the interior of the second side wall duct (30) through the lower right suction hole (36).

[0072] The lower right fan unit (54) is installed at a position close to the lower right suction hole (36) and vertically sucks in the air introduced into the second side wall duct (30), thereby forming an air flow that flows vertically along the outer surface of the side wall of the car (1) through the second side wall duct (30). The lower right fan unit (54) sucks in the air introduced into the second side wall duct (30) in the upper and lower directions of the second side wall duct (30), thereby forming an air flow that flows upward along the outer surface of the side wall of the car (1) through the second side wall duct (30) and an air flow that flows downward along the outer surface of the side wall of the car (1) through the second side wall duct (30).

[0073] The upper fan blade (541) of the lower right fan unit (54) sucks air introduced into the second side wall duct (30) in the downward direction of the second side wall duct (30), and changes the flow direction of the air sucked in the downward direction to a horizontal direction, thereby discharging the air sucked in the downward direction through the third right discharge hole (34) located second from the bottom among the four right discharge holes (32-35) of the side wall portion of the car (1) covered by the second side wall duct (30). Here, the “horizontal direction” means the direction from the inner surface of the rear side wall plate (12) of the car (1) toward the inner surface of the front side wall plate (11).

[0074] As illustrated in Fig. 10, the upper fan blade (541) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright, and as they rotate, the air introduced into the second side wall duct (30) is sucked in the downward direction of the second side wall duct (30), and the flow direction of the air sucked in the downward direction can be changed to a horizontal direction. By the downward suction force of the upper fan blade (541), the air inside the car (1) is sucked vertically into the opening surface of the upper right suction hole (31) formed in the side wall portion of the car (1) covered by the second side wall duct (30), and the air inside the car (1) is sucked into the interior of the second side wall duct (30) through the upper right suction hole (31).

[0075] The lower fan blade (542) of the lower right fan unit (54) sucks air introduced into the second side wall duct (30) in the upper direction of the second side wall duct (30), and changes the flow direction of the air sucked in the upper direction to a horizontal direction, thereby discharging the air sucked in the upper direction through the fourth right discharge hole (35) located at the bottommost from the top among the four right discharge holes (32-35) of the side wall portion of the car (1) covered by the second side wall duct (30). Here, the “horizontal direction” means the direction from the inner surface of the rear side wall plate (12) of the car (1) toward the inner surface of the front side wall plate (11).

[0076] As illustrated in Fig. 10, the lower fan blade (532) is formed in a cylindrical shape in which a plurality of straight blades having an arcuate cross-section are arranged upright, and as they rotate, the lower fan blade (532) sucks air introduced into the second side wall duct (30) in the upward direction of the second side wall duct (30) and can change the flow direction of the air sucked in the upward direction to a horizontal direction. By the upward suction force of the lower fan blade (542), the air inside the car (1) is sucked vertically into the opening surface of the lower right suction hole (36) formed in the side wall portion of the car (1) covered by the second side wall duct (30), and the air inside the car (1) is sucked into the interior of the second side wall duct (30) through the lower right suction hole (36).

[0077] The right heater (55) is installed on the upper and lower sides of the right lower fan unit (53) to heat the air sucked into the right lower fan unit (53) in the upper direction of the second side wall duct (30) and the air sucked into the right lower fan unit (53) in the lower direction of the second side wall duct (30). The right heater (55) is composed of a right upper heater (551) installed on the upper side of the right lower fan unit (53) and a right lower heater (552) installed on the lower side of the right lower fan unit (53). Each of the right upper heater (551) and the right lower heater (552) can be implemented as a PTC (positive Temperature Coefficient) heater. In a season when the internal temperature of the car (1) becomes very low, heating can be provided instead of cooling the car (1).

[0078] The lower right sterilizer (56) is installed between the lower right fan unit (54) and the lower right suction hole (36) and serves to sterilize air that flows vertically upward toward the lower right fan unit (54) among the air that flows into the second side wall duct (30) through the lower right suction hole (36). The lower right sterilizer (56) can be implemented in a way that sterilizes air using at least one of ultraviolet rays and a photocatalyst.

[0079] The lower right filter (57) is installed in the lower right suction hole (36) and serves to purify the air sucked from the inside of the car (1) to the second side wall duct (30) through the lower right suction hole (36). The lower right filter (57) can be implemented as a HEPA filter that filters fine particles in the air sucked from the inside of the car (1) to the second side wall duct (30) through the lower right suction hole (36).

[0080] Fig. 11 is an enlarged top view of the elevator cooling system illustrated in Fig. 6. Referring to Figs. 2 to 8 and 11, an intake pipe (60) is connected between the upper end of the first side wall duct (20) and the intake port of the air conditioner module (10) to transfer air flowing out from the upper end of the first side wall duct (20) to the intake port of the air conditioner module (10). The intake pipe (60) is connected between the upper end of the first side wall duct (20) and the intake port of the air conditioner module (10) to transfer air flowing out from the upper end of the first side wall duct (20) to the intake port of the air conditioner module (10). The air inside the first side wall duct (20) flows upward in a vertical direction along the outer surface of the rear side wall plate among the side walls of the car (1) and is introduced into the intake port of the air conditioner module (10) from the upper end of the first side wall duct (20) via the intake pipe (60).

[0081] The exhaust pipe (70) is connected between the upper end of the second side wall duct (30) and the outlet of the air conditioner module (10) to transfer the air flowing out from the outlet of the air conditioner module (10) to the upper end of the second side wall duct (30). The exhaust pipe (70) is connected between the upper end of the second side wall duct (30) and the outlet of the air conditioner module (10) to transfer the air flowing out from the outlet of the air conditioner module (10) to the upper end of the second side wall duct (30). The air cooled by the air conditioner module (10) flows into the upper end of the second side wall duct (30) from the outlet of the air conditioner module (10) via the exhaust pipe (70), and the air flowing into the upper end of the second side wall duct (30) flows downward in a vertical direction along the outer surface of the rear side plate of the side wall of the car (1).

[0082] As illustrated in FIGS. 2 to 8 and 11, an additional suction hole (200) is formed in the side wall portion of the car (1) between the upper end of the first side wall duct (20) and the upper left suction hole (21) so that air is sucked from the inside of the car (1) into the first side wall duct (20) by the suction force of the suction port of the air conditioner module (10) and the downward suction force of the upper fan (431) of the upper left fan unit (43). In this way, as air is sucked into the first side wall duct (20) by the downward suction force of the upper fan (431) of the upper left fan unit (43) in addition to the suction force of the suction port of the air conditioner module (10), the flow rate of the air sucked into the first side wall duct (20) can increase, and as a result, the temperature inside the elevator car can be quickly lowered.

[0083] As shown in Figures 2 to 8 and 11, air cooled by the air conditioner module (10) flows into the upper part of the second side wall duct (30) from the outlet of the air conditioner module (10), and the air flowing into the upper part of the second side wall duct (30) and the air sucked into the interior of the second side wall duct (30) by the downward suction force of the upper right fan unit (53) through the upper right suction hole (31) are mixed and flow downward along the outer surface of the side wall of the car (1). Since the interior of the car (1) is a very narrow space, unlike a typical room space where air conditioning is provided, if the cold air discharged from the discharge port of the air conditioner module (10) is forcibly mixed with the air sucked from the interior of the car (1) into the second side wall duct (30) by the downward suction force of the upper right fan unit (53), the cold air can be transferred more quickly than the cold air transferred by convection.

[0084] As described above, in addition to the suction force of the suction port of the air conditioner module (10), the downward suction force of the upper fan (431) of the upper left fan unit (43) also acts together to suck air into the first side wall duct (20), so that the velocity of the air sucked into the first side wall duct (20) can increase, and the cold air discharged from the discharge port of the air conditioner module (10) is forcibly mixed with the air sucked into the second side wall duct (30) from the inside of the car (1) by the downward suction force of the upper right fan unit (53), so that the entire inside of the car (1) can be immediately cooled. In order to save energy in the elevator cooling system, if the car (1) is stopped for a certain period of time or longer, the operation of the air conditioner module (10) is automatically stopped, and if the car (1) starts to rise or fall, the operation of the air conditioner module (10) is started. Even if the elevator cooling system is designed so that the cold air can be quickly transferred to the inside of the car (1), the temperature of the entire inside of the elevator car can be quickly lowered.

[0085] Fig. 12 is a drawing showing the side wind circulation structure of the elevator cooling system shown in Figs. 4 to 11. As shown in Fig. 12, the air inside the car (1) flows in a direction toward the side wall portion of the car covered by the first side wall duct (20) and the second side wall duct (30) through the upper left suction hole (21) and the lower left suction hole (26) of the first side wall duct (20), and the upper right suction hole (31) and the lower right suction hole (36) of the second side wall duct (30), forming a suction side wind that flows into the first side wall duct (20) and the second side wall duct (30). Among the suction side winds flowing into the first side wall duct (20) and the second side wall duct (30), the suction side wind flowing into the first side wall duct (20) is sucked into the air conditioner module (10).

[0086] A discharge side wind is formed, which is an air flow of a path in which the internal air of the first side wall duct (20) and the second side wall duct (30) is discharged from the side wall portion of the car covered by the first side wall duct (20) and the second side wall duct (30) through the four left discharge holes (22-25) of the first side wall duct (20) and the four right discharge holes (32-35) of the second side wall duct (30). The discharge air of the air conditioner module (10) flows into the second side wall duct (30) among the first side wall duct (20) and the second side wall duct (30).

[0087] An ascending airflow is generated on the upper body side of the passenger and a descending airflow is generated on the lower body side by the intake side wind, which is the airflow that flows into the first side wall duct (20) and the second side wall duct (30), and the discharge side wind, which is the airflow that flows out from the first side wall duct (20) and the second side wall duct (30). As the car (1) is cooled by this side wind circulation structure, the cold wind discharged from the air conditioner module is directed toward the torso of the passenger wrapped in clothing. As the cold wind is discharged from the ceiling of the car (1) toward the head of the passenger, the cold wind directly touches the scalp or facial skin of the passenger and causes the passenger's hair to fly, thereby solving the problem of the conventional elevator cooling system that causes discomfort to the passenger.

[0088] The present invention has been described above, focusing on preferred embodiments thereof. Those skilled in the art will appreciate that the present invention can be implemented in modified forms without departing from its essential characteristics. Therefore, the disclosed embodiments should be considered illustrative rather than limiting. The scope of the present invention is set forth in the claims, not the foregoing description, and all differences within the scope equivalent thereto should be construed as being encompassed by the present invention.

Claims

1. An air conditioning module mounted in an elevator car to cool the air inside the car; A first side wall duct attached to the outer side of the side wall of the car and flowing along the outer side wall of the car to form a passage for air to be sucked into the air conditioner module; A second side wall duct attached to the outer side of the side wall of the car and forming a passage for air discharged from the air conditioner module and flowing along the outer side wall of the car; A first side wind forming module that forms an intake side wind, which is an air flow in a path in which the internal air of the car is introduced into the first side wall duct in a direction toward the side wall portion of the car covered by the first side wall duct and then is sucked into the air conditioner module through the first side wall duct; and An elevator cooling system characterized by including a second side wind forming module that forms a discharge side wind, which is an air flow in a path in which the discharge air of the air conditioner module is discharged from a side wall portion of the car covered by the second side wall duct through the second side wall duct after the discharge air of the air conditioner module is introduced into the second side wall duct.

2. In paragraph 1, The above first side wall duct is formed in the shape of a straight pipe with a cross section of "[" and is attached to one side of the outer surface of the side wall of the car. An elevator cooling system characterized in that the second side wall duct is formed in the shape of a straight pipe with a cross-section of "[" and is attached to the other side of the outer surface of the side wall of the car.

3. In paragraph 2, An elevator cooling system characterized in that the first side wind forming module is built into the first side wall duct and horizontally sucks air from the inside of the car, thereby causing the air inside the car to flow into the first side wall duct in a direction toward the side wall portion of the car covered by the first side wall duct.

4. In paragraph 3, The above first side wind forming module An elevator cooling system characterized by including a fan unit that vertically sucks in air introduced into the first side wall duct to form a flow of air that flows vertically along the outer surface of the side wall of the car through the first side wall duct.

5. In paragraph 4, The above fan unit An upper fan blade that sucks air introduced into the first side wall duct in the downward direction of the first side wall duct and discharges the air sucked in the downward direction through the first discharge hole of the side wall portion of the car covered by the first side wall duct by changing the flow direction of the air sucked in the downward direction to a horizontal direction; and An elevator cooling system characterized by including a lower fan blade that sucks air introduced into the first side wall duct in the upper direction of the first side wall duct and discharges the air sucked in the upper direction through a second discharge hole in a side wall portion of a car covered by the first side wall duct by changing the flow direction of the air sucked in the upper direction to a horizontal direction.

6. In paragraph 5, A suction hole is formed in the side wall portion of the car covered by the first side wall duct, through which air sucked from the inside of the car passes into the first side wall duct. An elevator cooling system characterized in that the air inside the car is sucked vertically into the opening surface of the suction hole of the side wall portion of the car covered by the first side wall duct by the downward suction force of the upper fan blade, and the air inside the car is sucked into the inside of the first side wall duct through the suction hole of the side wall portion of the car covered by the first side wall duct.

7. In paragraph 6, The above first side wall duct is formed in the shape of a straight pipe with a cross section of "[" with one end open and the other end closed, and is attached to the outer surface of the side wall of the car. The internal air of the first side wall duct flows vertically along the outer surface of the side wall of the car and flows into the intake of the air conditioner module from one end of the first side wall duct. An elevator cooling system characterized in that an additional suction hole is formed in a side wall portion of the car between one end of the first side wall duct and the suction hole so that air is sucked from the inside of the car into the first side wall duct by the suction force of the suction port of the air conditioner module and the downward suction force of the upper fan blade.

8. In paragraph 2, An elevator cooling system characterized in that the second side wind forming module is built into the second side wall duct and horizontally sucks air from the inside of the car, thereby causing the air inside the car to flow into the first side wall duct in a direction toward the side wall portion of the car covered by the second side wall duct.

9. In paragraph 8, The above second side wind forming module An elevator cooling system characterized by including a fan unit that vertically sucks in air introduced into the second side wall duct to form a flow of air that flows vertically along the outer surface of the side wall of the car through the second side wall duct.

10. In paragraph 9, The above fan unit An upper fan blade that sucks air introduced into the second side wall duct in the downward direction of the second side wall duct and discharges the air sucked in the downward direction through the first discharge hole of the side wall portion of the car covered by the second side wall duct by changing the flow direction of the air sucked in the downward direction to a horizontal direction; and An elevator cooling system characterized by including a lower fan blade that sucks air introduced into the second side wall duct in the upper direction of the second side wall duct and discharges the air sucked in the upper direction through a second discharge hole in a side wall portion of a car covered by the second side wall duct by changing the flow direction of the air sucked in the upper direction to a horizontal direction.

11. In paragraph 10, A suction hole is formed in the side wall portion of the car covered by the second side wall duct, through which air sucked from the inside of the car passes into the second side wall duct. An elevator cooling system characterized in that the air inside the car is sucked vertically to the opening surface of the suction hole of the side wall portion of the car covered by the second side wall duct by the downward suction force of the upper fan blade, and the air inside the car is sucked into the interior of the second side wall duct through the suction hole of the side wall portion of the car covered by the second side wall duct.

12. In paragraph 11, The above second side wall duct is formed in the shape of a straight pipe with a cross section of "[" with one end open and the other end closed, and is attached to the outer surface of the side wall of the car. An elevator cooling system characterized in that air cooled by the air conditioning module flows into one end of the second side wall duct from the outlet of the air conditioning module, and air flowing into one end of the second side wall duct and air sucked into the interior of the second side wall duct through the suction hole are mixed and flow downward along the outer surface of the side wall of the car.

13. An elevator characterized by including an elevator cooling system of clause 1.

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