Chiller

Abstract

The present disclosure relates to a chiller. The chiller of the present disclosure comprises: a first compressor for compressing a refrigerant; a first heat exchanger which is disposed above the first compressor, and which performs heat exchange between air and the refrigerant discharged from the first compressor; a third heat exchanger which is disposed below the first heat exchanger, and which performs heat exchange between water and the refrigerant discharged from the first compressor; a fan which is disposed above the first heat exchanger and which forms an air flow toward the first heat exchanger; a control box which is disposed below the first heat exchanger, and in which an electronic device for controlling the operation of the first compressor or the fan is disposed; and a heat exchange duct which is disposed at one side of the control box and which forms a duct flow path in which the air flows by the fan.

Description

chiller

[0001] The present disclosure relates to a chiller, and more specifically, to a chiller having a structure for cooling a control box.

[0002] A chiller is a device that uses cooling water to cool air or equipment in buildings, factories, data centers, etc., and can be used primarily when large-scale cooling is required.

[0003] Chillers can cool water or air to cool building air conditioning systems or manufacturing equipment, or to maintain a constant temperature. Additionally, they can reduce power consumption by efficiently managing cooling in large-scale facilities.

[0004] There are various types of chillers, such as absorption chillers, air-cooled chillers, and water-cooled chillers. Additionally, chillers can have a structure that controls the water temperature by using a compressor to compress and evaporate a refrigerant.

[0005] However, chillers using compressors generally have a structure that makes it difficult to perform cooling and heating operations simultaneously in a single cycle.

[0006] Domestic registered patent KR 10-1542120 B1 discloses a chiller using a compressor.

[0007] The chiller may be equipped with a separate control box to control the compressor or fan. However, heat generated by the control box itself may cause malfunctions in the electronic devices placed inside the control box.

[0008] The present disclosure aims to solve the aforementioned problems and other problems.

[0009] Another objective is to provide a chiller with a structure that cools the control box.

[0010] Another objective is to provide a chiller that cools the control box using a fan to cool the heat exchanger.

[0011] Another purpose is to provide a chiller that cools the control box during the process of draining the condensate generated in the heat exchanger.

[0012] To achieve the above objective, a chiller according to an embodiment of the present disclosure comprises: a first compressor for compressing a refrigerant; a first heat exchanger disposed above the first compressor and heat-exchanging air with the refrigerant discharged from the first compressor; a third heat exchanger disposed below the first heat exchanger and heat-exchanging water with the refrigerant discharged from the first compressor; a fan disposed above the first heat exchanger and forming an air flow to the first heat exchanger; a control box disposed below the first heat exchanger and having an electronic device disposed therein for controlling the operation of the first compressor or the fan; and a heat exchange duct disposed on one side of the control box and forming a duct passage through which air flows by the fan.

[0013] A support plate supporting the first heat exchanger is disposed below the first heat exchanger, and a communication opening that is open vertically is formed on one side of the support plate.

[0014] A blower chamber through which air flows via the fan is formed on one side of the first heat exchanger. The connecting port connects the blower chamber with the duct passage.

[0015] A plurality of heat dissipation fins for cooling the electronic device are arranged on the exterior of the control box. The duct passage is arranged to pass through the plurality of heat dissipation fins.

[0016] The heat exchange duct comprises a connecting portion that is positioned above the control box and connected to a support plate that supports the first heat exchanger, and a connecting portion that is coupled to one side of the control box. The duct passage is formed between the connecting portion and the control box.

[0017] The above-mentioned coupling part includes a coupling part cover coupled to one side of the control box and forming the duct passage inside, and a partition wall disposed inside the coupling part cover and partitioning the duct passage.

[0018] An opening for external air to flow in is formed on one side of the above-mentioned joint. The opening is positioned spaced apart from the above-mentioned connecting part.

[0019] The above connecting portion includes a first connecting portion positioned above the coupling portion and a second connecting portion that is bent from the first connecting portion and positioned below the support plate. A connecting hole that is open downward is formed on the lower surface of the first connecting portion. The upper surface of the second connecting portion is opened in the direction of a blower chamber formed on one side of the first heat exchanger.

[0020] The lower surface of the first connecting part is positioned to slope downward as it becomes adjacent to the second connecting part.

[0021] The above-mentioned coupling part includes a guide wall positioned below the connecting hole and guiding rising air. The upper surface of the guide wall is formed at an angle.

[0022] The lower surface of the above-mentioned joint is formed to slope downward. A drainage hole is formed on one side of the lower surface.

[0023] A drainage hole is formed on one side of the lower surface of the above-mentioned joint, and a guide wall is disposed on the other side to guide air rising along the duct passage. The lower surface of the above-mentioned joint has a shape that slopes downward from the guide wall toward the drainage hole.

[0024] The above duct passage includes a first passage into which external air is introduced, a second passage sending air to the outside of the duct passage, and a third passage connecting the first passage and the second passage. The air flowing through the first passage and the air flowing through the second passage flow in opposite directions to each other.

[0025] A plurality of heat dissipation fins for cooling the electronic device are arranged on the exterior of the control box. The heat dissipation fins include a first heat dissipation fin, a second heat dissipation fin spaced apart from the first heat dissipation fin, and a third heat dissipation fin arranged below the first heat dissipation fin and the second heat dissipation fin.

[0026] The first heat dissipation fin and the second heat dissipation fin are structured to extend vertically. The third heat dissipation fin is structured to extend in a direction perpendicular to the vertical direction.

[0027] A plurality of heat dissipation fins for cooling the electronic device are arranged on the first surface of the above control box.

[0028] A cooling kit is disposed on the second surface of the above control box to cool an electronic device placed inside the control box using a refrigerant.

[0029] The above heat exchange duct forms a duct passage in the area where the plurality of heat dissipation fins are arranged.

[0030] The first surface and the second surface face in different directions.

[0031] The chiller further comprises a second compressor that compresses a refrigerant separately from the first compressor, a second heat exchanger disposed above the second compressor and heat-exchanging air with the refrigerant discharged from the second compressor, and a support plate disposed below the first heat exchanger and the second heat exchanger and supporting the first heat exchanger and the second heat exchanger.

[0032] A blower chamber through which air flows via the fan is disposed between the first heat exchanger and the second heat exchanger. A communication opening is formed in the support plate, which is open vertically and connects the blower chamber with the duct passage.

[0033] The above-mentioned flue is positioned below the above-mentioned fan.

[0034] Specific details of other embodiments are included in the detailed description and drawings.

[0035] According to the chiller of the present disclosure, there is one or more of the following effects.

[0036] First, the structure that cools the control box has the advantage of preventing malfunctions of electronic devices placed in the control box.

[0037] Second, since the control box is cooled by utilizing the fan that cools the heat exchanger, there is also the advantage of cooling the control box by utilizing the existing structure.

[0038] Third, since the control box is cooled by utilizing the condensate flowing during the drainage process of the heat exchanger, there is also the advantage of improving cooling performance.

[0039] The effects of the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims.

[0040] FIG. 1 is a diagram showing the configuration of a chiller according to one embodiment of the present disclosure.

[0041] FIG. 2 is a perspective view for explaining the configuration of a chiller according to one embodiment of the present disclosure.

[0042] FIG. 3 is a drawing for explaining the arrangement of a heat exchanger, a fan, and a heat exchange duct, and the connection relationship of a control box according to one embodiment of the present disclosure.

[0043] FIG. 4 is a perspective view for explaining the arrangement and configuration of a control box and a heat exchange duct according to one embodiment of the present disclosure.

[0044] FIG. 5 is an exploded perspective view for explaining the arrangement and configuration of a control box and a heat exchange duct according to one embodiment of the present disclosure.

[0045] FIG. 6 is a drawing for explaining the configuration and form of a heat exchange duct according to one embodiment of the present disclosure.

[0046] FIG. 7 is a side view drawing for explaining the configuration and form of a heat exchange duct according to one embodiment of the present disclosure.

[0047] FIG. 8 is a drawing of another aspect to explain the configuration and form of a heat exchange duct according to one embodiment of the present disclosure.

[0048] FIG. 9 is a shape of a flow path of a duct flow path according to another embodiment of the present disclosure.

[0049] FIG. 10 is a shape of a flow path of a duct flow path according to another embodiment of the present disclosure.

[0050] The advantages and features of the present disclosure and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present disclosure is not limited to the embodiments below but may be implemented in various different forms. The embodiments provided are merely to make the present disclosure complete and to fully inform those skilled in the art of the scope of the disclosure. The present disclosure is defined only by the scope of the claims. Throughout the specification, like reference numerals refer to like components.

[0051] Hereinafter, the present disclosure will be described with reference to the drawings for explaining a chiller according to embodiments of the present disclosure.

[0052] With reference to FIG. 1, the configuration of the chiller of the present invention will be explained.

[0053] The chiller includes a first compressor (102) that compresses a first refrigerant. The chiller includes a first heat exchanger (104) that exchanges heat between the first refrigerant discharged from the first compressor (102) and air.

[0054] The chiller includes a second compressor (202) that compresses a second refrigerant. The chiller includes a second heat exchanger (204) that exchanges heat between the second refrigerant discharged from the second compressor (202) and air.

[0055] The chiller includes a fan (300) that forms an airflow to a first heat exchanger (104) and a second heat exchanger (204). The chiller can form an airflow to each of the first heat exchanger (104) and the second heat exchanger (204) using a single fan (300).

[0056] The first refrigerant and the second refrigerant may be of the same type or different types. However, the first refrigerant and the second refrigerant flow so as not to mix with each other. The first refrigerant is circulated by the first compressor (102), and the second refrigerant is circulated by the second compressor (202).

[0057] The chiller includes a third heat exchanger (302) that exchanges heat with water and a first or second refrigerant. The third heat exchanger (302) may operate complementarily with the first heat exchanger (104) or the second heat exchanger (204). Here, complementary operation may mean opposite to use as a condenser or as an evaporator.

[0058] For example, when the third heat exchanger (302) is used as a condenser, the first heat exchanger (104) or the second heat exchanger (204) can be used as an evaporator. Also, when the third heat exchanger (302) is used as an evaporator, the first heat exchanger (104) or the second heat exchanger (204) can be used as a condenser.

[0059] The third heat exchanger (302) can supply water that has been heat-exchanged with the first refrigerant and the second refrigerant to a water supply pipe (not shown). The third heat exchanger (302) may be a plate heat exchanger that heat-exchanges water and refrigerant.

[0060] The chiller includes a first switching valve (106) that selectively sends a first refrigerant discharged from a first compressor (102) to a first heat exchanger (104) or a third heat exchanger (302).

[0061] The first switching valve (106) can send the first refrigerant discharged from the first compressor (102) to the first heat exchanger (104) and send the first refrigerant flowing from the third heat exchanger (302) to the first compressor (102). Additionally, the first switching valve (106) can send the first refrigerant discharged from the first compressor (102) to the third heat exchanger (302) and send the first refrigerant flowing from the first heat exchanger (104) to the first compressor (102).

[0062] The chiller includes a second switching valve (206) that selectively sends the second refrigerant discharged from the second compressor (202) to the second heat exchanger (204) or the third heat exchanger (302).

[0063] The second switching valve (206) can send the second refrigerant discharged from the second compressor (202) to the second heat exchanger (204) and send the second refrigerant flowing from the third heat exchanger (302) to the second compressor (202). Additionally, the second switching valve (206) can send the second refrigerant discharged from the second compressor (202) to the third heat exchanger (302) and send the second refrigerant flowing from the second heat exchanger (204) to the second compressor (202).

[0064] The chiller includes a first accumulator (110) that separates the first refrigerant flowing to the first compressor (102) and sends the first refrigerant in gaseous form to the first compressor (102). The chiller includes a first receiver (112) that stores a portion of the first refrigerant flowing through the first compressor (102).

[0065] The chiller includes a second accumulator (210) that separates the second refrigerant flowing to the second compressor (202) and sends the gaseous second refrigerant to the second compressor (202). The chiller includes a second receiver (212) that stores a portion of the second refrigerant flowing through the second compressor (202).

[0066] The chiller includes a first expansion valve (114) that expands a first refrigerant flowing in a first liquid pipe (130) and a second expansion valve (214) that expands a second refrigerant flowing in a second liquid pipe (230).

[0067] The first expansion valve (114) includes a first-1 expansion valve (116) positioned adjacent to the first heat exchanger (104) and a first-2 expansion valve (118) positioned adjacent to the third heat exchanger (302).

[0068] The second expansion valve (214) includes a second-1 expansion valve (216) positioned adjacent to the second heat exchanger (204) and a second-2 expansion valve (218) positioned adjacent to the third heat exchanger (302).

[0069] The chiller includes a first liquid pipe (130) connecting a first heat exchanger (104) and a third heat exchanger (302), and a first supercooler (108) disposed in the first liquid pipe (130).

[0070] A liquid first refrigerant may flow through the first liquid pipe (130). The first supercooler (108) may expand a portion of the first refrigerant flowing through the first liquid pipe (130) and exchange heat with the refrigerant flowing through the first liquid pipe (130). A portion of the first refrigerant that is branched out from the first liquid pipe (130), expanded, and heat-exchanged may flow to the first compressor (102).

[0071] The chiller includes a second liquid pipe (230) connecting a second heat exchanger (204) and a third heat exchanger (302), and a second supercooler (208) disposed in the second liquid pipe (230).

[0072] A second liquid refrigerant may flow through the second liquid pipe (230). The second subcooler (208) may expand a portion of the second refrigerant flowing through the second liquid pipe (230) and exchange heat with the refrigerant flowing through the second liquid pipe (230). A portion of the second refrigerant that is branched out from the second liquid pipe (230), expanded, and heat-exchanged may flow to the second compressor (202).

[0073] With reference to FIG. 2, the configuration and arrangement of the chiller according to the present embodiment will be explained.

[0074] The chiller includes a plurality of frames (310) that form an external shape and maintain the arrangement of a plurality of components. Each of the plurality of frames (310) is arranged vertically and spaced apart in the front-rear, left-right, and right directions.

[0075] The chiller includes a base (307) positioned at the lower end of a plurality of frames (310). The chiller includes a top plate (308) positioned at the upper end of a plurality of frames (310). A fan (300) is positioned on the top plate (308).

[0076] In the chiller according to the present embodiment, each of the two fans (300) may be placed between the first heat exchanger (104) and the second heat exchanger (204).

[0077] The chiller includes a middle plate (309) that is connected to each of the plurality of frames (310) and positioned between the base (307) and the top plate (308).

[0078] The middle plate (309) can separate the chiller into upper and lower sections.

[0079] A first heat exchanger (104) and a second heat exchanger (204) may be placed on top of the middle plate (309). The first heat exchanger (104) and the second heat exchanger (204) may be arranged at an angle symmetrical to each other. A fan (300) is placed on top of the first heat exchanger (104) and the second heat exchanger (204).

[0080] A first compressor (102) and a second compressor (202) are placed below the middle plate (309). The configuration placed below the middle plate (309) can be fixedly positioned on the base (307).

[0081] The chiller further includes a control box (306) in which a control device for controlling the first compressor (102) or the second compressor (202) is placed. The control device placed in the control box (306) can control the operation of the fan (300). The control device placed in the control box (306) can control the operation of a plurality of valves.

[0082] The control box (306) is placed under the middle plate (309). A support plate (304) may be placed on the middle plate (309). The support plate (304) is placed under the first heat exchanger (104) and the second heat exchanger (204). The support plate (304) can support the first heat exchanger (104) and the second heat exchanger (204).

[0083] A third heat exchanger (302) is placed below the middle plate (309).

[0084] The third heat exchanger (302) is connected to a first supply pipe (303a) through which water is discharged from the third heat exchanger (302) and a first return pipe (303b) through which water flows into the third heat exchanger (302).

[0085] Referring to FIG. 3, the arrangement of the fan, first heat exchanger, second heat exchanger, control box, and heat exchange duct is described.

[0086] A first heat exchanger (104) and a second heat exchanger (204) are positioned below the fan (300). The first heat exchanger (104) and the second heat exchanger (204) are positioned symmetrically to each other. The first heat exchanger (104) and the second heat exchanger (204) are positioned such that the distance between them decreases from the top to the bottom.

[0087] A blower chamber (301) through which air flows is formed between the first heat exchanger (104) and the second heat exchanger (204). The blower chamber (301) is positioned below the fan (300). In the blower chamber (301), air that has passed through the first heat exchanger (104) or the second heat exchanger (204) flows upward to where the fan (300) is positioned. The blower chamber (301) is an area directly affected by the fan (300).

[0088] That is, the airflow inside the blower chamber (301) can be made active by the operation of the fan (300).

[0089] A support plate (304) supporting the first heat exchanger (104) and the second heat exchanger (204) may be disposed below the first heat exchanger (104) and the second heat exchanger (204). The support plate (304) may be a drain pan that collects condensate generated from the first heat exchanger (104) and the second heat exchanger (204). Additionally, the support plate (304) may be structured to be placed on top of a separate drain pan.

[0090] A vertically open communication opening (304a) is formed on one side of the support plate (304).

[0091] Below the support plate (304), a heat exchange duct (320) is arranged to form a flow path through which air flows around the control box (306).

[0092] A duct passage (322) through which air flows is formed inside the heat exchange duct (320). The duct passage (322) can be formed in the heat exchange duct (320) while connected to the control box (306).

[0093] The duct passage (322) is connected to the blower chamber (301) and the connecting port (304a).

[0094] Referring to Figures 4 and 5, the shape and arrangement of the control box and heat exchange duct will be explained.

[0095] A control box (306) has a plurality of electronic devices (not shown) arranged inside to control a plurality of chiller configurations. Accordingly, a plurality of heat dissipation fins (312, 314, 316) are arranged on the outside of the control box (306).

[0096] Multiple heat dissipation fins (312, 314, 316) can cool an electronic device placed inside a control box (306).

[0097] A plurality of heat dissipation fins (312, 314, 316) are arranged on the first surface of the control box (306). A first heat dissipation fin (312), a second heat dissipation fin (314), and a third heat dissipation fin (316) are arranged on the first surface of the control box (306). The first heat dissipation fin (312) and the second heat dissipation fin (314) are arranged next to each other. The third heat dissipation fin (316) is arranged below the first heat dissipation fin (312) and the second heat dissipation fin (314).

[0098] The first heat dissipation fin (312) may have a structure that extends vertically. That is, it has a structure in which a plurality of heat dissipation fins extend in the vertical direction. The first heat dissipation fin (312) includes a first upper heat dissipation fin (312a) and a first lower heat dissipation fin (312b).

[0099] The second heat dissipation fin (314) may have a structure that extends vertically. That is, it has a structure in which a plurality of heat dissipation fins extend in the vertical direction. The second heat dissipation fin (314) includes a second upper heat dissipation fin (314a) and a second lower heat dissipation fin (314b).

[0100] The third heat dissipation fin (316) may have a structure that extends in a direction perpendicular to the vertical direction. That is, a plurality of heat dissipation fins disposed on the third heat dissipation fin (316) may extend in a direction perpendicular to the vertical direction.

[0101] On the outside of the control box (306), a cooling kit (318) is disposed to cool an electronic device inside the control box (306) using a first refrigerant or a second refrigerant flowing through a first compressor (102) or a second compressor (202).

[0102] The cooling kit (318) is positioned in a direction different from the area where the heat dissipation fins are positioned. The cooling kit (318) is positioned on the second side (306b) of the control box (306). The first side (306a) and the second side (306b) may be surfaces facing in different directions.

[0103] The heat exchange duct (320) is connected to one side of the control box (306).

[0104] The heat exchange duct (320) forms a duct passage (322) in an area where a plurality of heat dissipation fins (312, 314, 316) are arranged.

[0105] The heat exchange duct (320) is positioned on top of the control box (306) and includes a connection part (324) connected to the support plate (304).

[0106] The connecting part (324) is positioned below the communication opening (304a) of the support plate (304). The connecting part (324) is positioned above the control box (306). The connecting part (324) is positioned to be bent above the control box (306).

[0107] Inside the connecting part (324), a connecting passage (324a) is formed to send air flowing from the duct passage (322) to the blower chamber (301).

[0108] The heat exchange duct (320) is connected to one side of the control box (306) and includes a connecting part (330) that forms a duct passage (322).

[0109] The connecting part (330) is positioned on the first surface (306a) of the control box (306). The connecting part (330) is positioned on the first surface (306a) of the control box (306) to form a duct passage (322).

[0110] The coupling part (330) includes a coupling part cover (332) that is coupled to one side of the control box (306) and forms a duct passage (322) inside, and a partition wall (334) that is disposed inside the coupling part cover (332) and partitions the duct passage (322).

[0111] A duct passage (322) is formed between the connecting part (330) and the first surface (306a) of the control box (306).

[0112] An opening (340) through which external air is introduced is formed on one side of the joint portion (330). The opening (340) is spaced apart from the connecting portion (324). The opening (340) may be formed to open in the vertical direction.

[0113] The duct passage (322) includes a first passage (322a) through which air introduced from the opening (340) flows, a second passage (322b) through which air flowing from the first passage (322a) is sent to a connecting passage (324a), and a third passage (322c) connecting the first passage (322a) and the second passage (322b).

[0114] A first heat dissipation fin (312) is disposed in the first Euro (322a). Air can flow downward in the first Euro (322a).

[0115] A second heat dissipation fin (314) is disposed in the second channel (322b). Air can flow upward in the second channel (322b). The air flowing in the first channel (322a) and the air flowing in the second channel (322b) can flow in different directions.

[0116] The first euro (322a) and the second euro (322b) can be separated by a partition wall (334).

[0117] A third euro (322c) is positioned below the first euro (322a) and the second euro (322b). A third heat dissipation fin (316) is positioned in the third euro (322c). In the third euro (322c), air flows in a direction perpendicular to the vertical direction.

[0118] The connecting portion (330) includes a guide wall (336) disposed on one side of the second flow path (322b). The guide wall (336) can guide air flowing from the third flow path (322c) to the second flow path (322b) upward. The guide wall (336) is disposed spaced apart from the partition wall (334).

[0119] The guide wall (336) can form a second Euro (322b) together with the partition wall (334).

[0120] The heat exchange duct (320) is structured to be mounted on one side of the control box (306) and does not obstruct the space where other components are placed at the bottom of the chiller. Additionally, the heat exchange duct (320) can cool the control box (306) by utilizing the airflow formed in the blower chamber (301).

[0121] Referring to FIG. 6, the flow of air flowing inside the heat exchange duct (320) is described.

[0122] Air is introduced through the opening (340). The air introduced through the opening (340) flows downward along the first flow path (322a). The air flows through the second flow path (322b) in a direction perpendicular to the vertical direction and flows into the third flow path (322c). The air can flow upward along the third flow path (322c).

[0123] Air can flow from the upper part of the third channel (322c) to the connecting channel (324a) and then flow into the blower chamber (301). One side of the upper part of the third channel (322c) is in communication with the connecting channel (324a). At the upper part of the third channel (322c), a connecting hole (324b) is formed through which the air flowing through the third channel (322c) flows into the connecting channel (324a).

[0124] The connecting hole (324b) is spaced apart from the opening (340).

[0125] The connecting portion (324) includes a first connecting portion (325a) positioned above the connecting portion (330) and a second connecting portion (325b) that is bent from the first connecting portion (325a) and positioned below the support plate (304).

[0126] A connecting hole (324b) is formed below the first connecting part (325a). The second connecting part (325b) is open at the top. A connecting hole (304a) formed in the support plate (304) is disposed above the second connecting part (325b).

[0127] With reference to FIG. 7, the arrangement and structure of the second connecting part (325b) will be explained.

[0128] The second connecting part (325b) has a structure that protrudes to one side from the connecting part (330). Accordingly, the second connecting part (325b) can be placed below the support plate (304).

[0129] The second connecting part (325b) may be formed with a lower surface (325b1) that is inclined. The lower surface (325) of the second connecting part (325b) may have a shape that slopes downward as it approaches the connecting part (330). Accordingly, when condensate flows through the connecting hole (304a) formed in the support plate (304), it may flow along the lower surface of the second connecting part (325b) into the duct passage (322) formed by the connecting part (330).

[0130] Referring to FIG. 8, the arrangement of the first connecting part and the configuration of the coupling part will be explained.

[0131] A guide wall (336) is positioned below the first connecting part (325a). A guide wall (336) is positioned below the connecting hole (324b).

[0132] The upper surface (337) of the guide wall (336) may be formed at an angle. The upper surface (337) of the guide wall (336) may have a shape that slopes downward as it approaches the partition wall (334).

[0133] The lower surface (331) of the joint part (330) is formed to slope downward. A drainage hole (339) is formed on one side of the lower surface (331) of the joint part (330). A drainage hole (339) is formed on one side of the lower surface (331) of the joint part (330), and a guide wall (336) is disposed on the other side.

[0134] The lower surface (331) of the joint part (330) may have a shape that slopes downward as it moves away from the guide wall (336). The lower surface (331) of the joint part (330) may have a shape that slopes downward as it gets closer to the drainage hole (339).

[0135] Accordingly, the condensate flowing through the second connection part (325b) falls into the second flow path (322b) through the connection hole (324b). A portion of the condensate falling into the second flow path (322b) can flow downward along the upper surface (337) of the guide wall (336).

[0136] Additionally, condensate that falls onto the lower surface (331) of the joint (330) can flow along the inclined surface (331) of the lower surface (331) of the joint (330) into the drain hole (339).

[0137] Referring to FIGS. 9 and FIGS. 10, the shape of a Euro according to another embodiment will be described.

[0138] Referring to FIG. 9, the duct passage (322') may include a first rising passage (322a'), a first descending passage (322b'), and a second rising passage (322c'). An opening (340) may be formed at the bottom of the joint (330). Air introduced into the opening (340) may flow through the first rising passage (322a'), the first descending passage (322b'), and the second rising passage (322c') to the blower chamber (301, see FIG. 3).

[0139] Referring to FIG. 10, the duct channel (322'') may have a structure in which a plurality of channels formed in the left-right direction are stacked. The duct channel (322) includes a lower channel (322a''), an upper channel (322b''), and a middle channel (322c'').

[0140] An opening (340) is formed on one side of the lower channel (322a''). A connecting hole (324b) may be formed on the upper side of the upper channel (322b'').

[0141] Although preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present disclosure.

Claims

1. A first compressor for compressing refrigerant; A first heat exchanger disposed above the first compressor and heat-exchanging air with the refrigerant discharged from the first compressor; A third heat exchanger disposed below the first heat exchanger and heat-exchanging water with the refrigerant discharged from the first compressor; A fan disposed above the first heat exchanger and forming airflow to the first heat exchanger; A control box disposed below the first heat exchanger and having an electronic device disposed therein for controlling the operation of the first compressor or the fan; and A chiller comprising a heat exchange duct positioned on one side of the control box and forming a duct passage through which air flows by the fan.

2. In Paragraph 1, A support plate supporting the first heat exchanger is disposed below the first heat exchanger, and A chiller having a vertically open connecting opening formed on one side of the above-mentioned support plate.

3. In Paragraph 2, A blower chamber is formed on one side of the first heat exchanger, through which air flows with the fan, and The above-mentioned connecting port is a chiller that connects the above-mentioned blower chamber and the above-mentioned duct passage.

4. In Paragraph 1, A plurality of heat dissipation fins for cooling the electronic device are arranged on the exterior of the above control box, and A chiller in which the above duct passage is arranged to pass through the above plurality of heat dissipation fins.

5. In Paragraph 1, The above heat exchange duct is, A connecting part positioned above the control box and connected to a support plate that supports the first heat exchanger, and It includes a coupling part coupled to one side of the above control box, and The above duct passage is a chiller formed between the above coupling part and the above control box.

6. In Paragraph 5, The above-mentioned coupling part comprises a coupling part cover coupled to one side of the control box and forming the duct passage inside, and a partition wall disposed inside the coupling part cover and partitioning the duct passage.

7. In Paragraph 5, An opening for external air to enter is formed on one side of the above-mentioned joint, and The above opening is a chiller spaced apart from the above connection part.

8. In Paragraph 5, The above connecting portion includes a first connecting portion disposed above the coupling portion and a second connecting portion that is bent at the first connecting portion and disposed below the support plate. A downwardly open connecting hole is formed on the lower surface of the first connecting part, and A chiller that is opened toward a blower chamber formed on one side of the first heat exchanger on the upper surface of the second connecting part.

9. In Paragraph 8, A chiller in which the lower surface of the first connecting part is positioned to slope downward as it approaches the second connecting part.

10. In Paragraph 8, The above-mentioned coupling part includes a guide wall positioned below the connecting hole and guiding rising air, and A chiller in which the upper surface of the above guide wall is formed at an angle.

11. In Paragraph 5, The lower surface of the above-mentioned joint is formed to be inclined downward, and A chiller having a drainage hole formed on one side of the lower surface.

12. In Paragraph 5, A drainage hole is formed on one side of the lower surface of the above-mentioned joint, and a guide wall is disposed on the other side to guide air rising along the duct passage. A chiller having a lower surface of the above-mentioned joint that slopes downward from the guide wall toward the drain hole.

13. In Paragraph 1, The above duct passage includes a first passage into which outside air is introduced, a second passage for sending air outside the duct passage, and a third passage connecting the first passage and the second passage. A chiller that moves the air flowing in the first flow path and the air flowing in the second flow path in opposite directions.

14. In Paragraph 13, A plurality of heat dissipation fins for cooling the electronic device are arranged on the exterior of the above control box, and The above heat dissipation fin includes a first heat dissipation fin, a second heat dissipation fin spaced apart from the side of the first heat dissipation fin, and a third heat dissipation fin spaced below the first heat dissipation fin and the second heat dissipation fin. The first heat dissipation fin and the second heat dissipation fin are structured to extend vertically, and The above third heat dissipation fin is a chiller having a structure that extends in a direction perpendicular to the vertical direction.

15. In Paragraph 1, A plurality of heat dissipation fins for cooling the electronic device are arranged on the first surface of the above control box, and A cooling kit is disposed on the second surface of the above-mentioned control box to cool an electronic device placed inside the control box using a refrigerant, and The above heat exchange duct is a chiller that forms a duct passage into an area where the above plurality of heat dissipation fins are arranged.

16. In Paragraph 15, The first surface and the second surface are chillers facing in different directions.

17. In Paragraph 1, A second compressor that compresses the refrigerant separately from the first compressor above; A second heat exchanger disposed above the second compressor and heat-exchanging air with the refrigerant discharged from the second compressor; It further includes a support plate disposed below the first heat exchanger and the second heat exchanger and supporting the first heat exchanger and the second heat exchanger. A blower chamber through which air flows via the fan is disposed between the first heat exchanger and the second heat exchanger, and A chiller having a connecting opening formed in the support plate above, which is open vertically and connects the blower chamber and the duct passage.

18. In Paragraph 17, The above-mentioned flue is a chiller positioned below the above-mentioned fan.

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