Drain plug and heat pump

Abstract

This heat pump may comprise: a housing including a base; a guide that is located inside the housing and provided to guide water; and a drain plug that can be detachably mounted to the base. The drain plug may include: a drain body that forms a drain flow path; a through-hole that passes through the drain body; and a guide connection section that extends from the drain body and can be connected to the guide.

Description

Drain plug and heat pump

[0001] The present disclosure relates to a drain plug and a heat pump.

[0002] In general, a heat pump is a heating and cooling device that transfers a low-temperature heat source to a high-temperature one or transfers a high-temperature heat source to a low-temperature one by using the heat generation or condensation heat of a refrigerant.

[0003] A heat pump may include an outdoor unit having a compressor, an expansion valve, and a heat exchanger. The outdoor unit may be configured to heat a refrigerant, and the heated refrigerant may be configured to heat the heating water by exchanging heat with the heating water. The heating water heated by the refrigerant may be used for heating or hot water supply.

[0004] The heat pump may be installed indoors and include a distribution unit that receives heated heating water and distributes the heating water to a plurality of heating or hot water supply spaces.

[0005] A distribution unit that receives heating water from an outdoor unit can supply heating water to heating or hot water supply spaces through pipes, etc.

[0006] Embodiments of the present disclosure provide a drain plug having an improved structure and a heat pump including the same.

[0007] Embodiments of the present disclosure provide a drain plug with improved drainage performance and a heat pump including the same.

[0008] Embodiments of the present disclosure provide a drain plug capable of draining water within a base and water within a water frame (e.g., a tank, a tray, a valve, a pipe, etc.) and a heat pump including the same.

[0009] Embodiments of the present disclosure provide a drain plug capable of discharging leaked refrigerant to the outside of a housing and a heat pump including the same.

[0010] Embodiments of the present disclosure provide a drain plug capable of preventing / suppressing the detachment of a guide and a heat pump including the same.

[0011] Embodiments of the present disclosure provide a drain plug capable of preventing / suppressing twisting of a guide and a heat pump including the same.

[0012] Embodiments of the present disclosure provide a drain plug and a heat pump including the same that can easily set a drainage direction in response to various installation environments.

[0013] A heat pump according to an exemplary embodiment of the present disclosure may include a housing including a base; a guide disposed inside the housing and configured to guide water; and a drain plug detachably mountable to the base. The drain plug may include a drain body forming a drainage path; a through hole formed through the drain body, the through hole configured to guide water in the base to the drainage path while the drain plug is mounted on the base; and a guide connecting portion extending from the drain body and connectable to the guide, the guide connecting portion configured to guide water in the guide to the drainage path while the drain plug is mounted on the base and the guide connecting portion is connected to the guide.

[0014] A heat pump according to an exemplary embodiment of the present disclosure may include a housing including a base having an opening formed therein; a water frame disposed inside the housing and configured to receive water; a drain plug detachably mounted on the base; and a guide configured to connect the water frame and the drain plug and configured to transfer water in the water frame to the drain plug. The drain plug may include a drain body configured to be inserted into the opening; a guide connecting portion extending upward from the drain body and vertically connected to the guide, the guide connecting portion being configured to receive water guided by the guide; and a stopper protruding from an outer surface of the drain body and provided to contact at least a portion of a border defining the opening of the base.

[0015] According to an exemplary embodiment of the present disclosure, a drain plug detachably mounted on a base of a housing may include: a drain body; a through hole formed through the drain body and provided to communicate the inside of the housing with the drainage passage, through which water of the base flows in; and a guide connecting portion extending upward from the drain body and connectable to a guide arranged inside the housing to guide water, through which water guided by the guide flows in.

[0016] The above and other aspects, features and advantages of specific embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings, in which:

[0017] FIG. 1 is a drawing showing an example of a heat pump according to various embodiments.

[0018] FIG. 2 is a perspective view of a distribution unit according to various embodiments.

[0019] FIG. 3 is an exploded perspective view showing a portion of a distribution unit according to various embodiments.

[0020] FIG. 4 is a perspective view showing the interior of a distribution unit according to various embodiments.

[0021] FIG. 5 is a perspective view showing the interior of a distribution unit viewed from a different direction than FIG. 4 according to various embodiments.

[0022] FIG. 6 is an enlarged view of part A shown in FIG. 4 according to various embodiments.

[0023] FIG. 7 is an enlarged view of part B shown in FIG. 5 according to various embodiments.

[0024] FIG. 8 is an enlarged view of part C shown in FIG. 5 according to various embodiments.

[0025] FIG. 9 is a perspective view of an outdoor unit according to various embodiments.

[0026] FIG. 10 is an exploded perspective view showing a portion of an outdoor unit according to various embodiments.

[0027] FIG. 11 is an enlarged perspective view showing a portion of an outdoor unit according to various embodiments.

[0028] FIG. 12 is a perspective view of a drain plug, base, and guide according to various embodiments.

[0029] Figure 13 is an exploded perspective view of a drain plug, base, and guide according to various embodiments.

[0030] Figure 14 is a perspective view of a drain plug according to various embodiments.

[0031] FIG. 15 is a drawing showing a drain plug viewed from a different direction than FIG. 14 according to various embodiments.

[0032] FIG. 16 is a perspective view of a drain plug viewed from a different direction than FIGS. 14 and 15 according to various embodiments.

[0033] FIG. 17 is a cross-sectional view taken along line DD' shown in FIG. 12 according to various embodiments.

[0034] FIG. 18 is a cross-sectional view taken along line EE' shown in FIG. 12 according to various embodiments.

[0035] FIG. 19 is a cross-sectional view showing a state in which a drain plug is in a first position according to various embodiments.

[0036] FIG. 20 is a cross-sectional view showing a state in which a drain plug is in a second position according to various embodiments.

[0037] FIG. 21 is a cross-sectional view showing a state in which a drain plug is in a third position according to various embodiments.

[0038] FIG. 22 is a cross-sectional view showing a state in which a drain plug is in a fourth position according to various embodiments.

[0039] It should be understood that the various embodiments of the present disclosure and the terminology used therein are not intended to limit the technical features described in the present disclosure to specific embodiments, but rather to encompass various modifications, equivalents, or alternatives of the exemplary embodiments.

[0040] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0041] The singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0042] In this disclosure, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0043] The term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0044] The terms "part," "module," and "member" may be implemented in hardware or software. In various embodiments, multiple "parts," "modules," and "members" may be implemented as a single component. In various embodiments, a single "part," "module," or "member" may include multiple components.

[0045] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0046] When a component (e.g., a first component) is referred to as being “coupled” or “connected” to another component (e.g., a second component), with or without the terms “functionally” or “communicatively,” this can mean, for example, that the component is connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0047] Terms such as "include" or "have" are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the present disclosure, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0048] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0049] Throughout this disclosure, when we refer to a component as being "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where another component exists between the two components.

[0050] Meanwhile, the terms “front”, “back”, “left”, “right”, “up”, “down”, “vertical direction”, etc. used in the description below are defined based on the drawing, and the shape and position of each component are not limited by these terms.

[0051] Hereinafter, various exemplary embodiments according to the present disclosure will be described in more detail with reference to the attached drawings.

[0052] FIG. 1 is a drawing showing an example of a heat pump according to various embodiments.

[0053] A heat pump (1) can perform indoor heating, indoor cooling, indoor floor heating, and / or hot water supply through heat exchange between air and a refrigerant, heat exchange between refrigerants, and / or heat exchange between a refrigerant and water.

[0054] Referring to FIG. 1, a heat pump (1) may include an outdoor unit (20). The heat pump (1) may include at least one indoor unit (10, 30, 40, 50 and / or 60) that is connected to the outdoor unit (20) through at least one pipe (R and / or W) and is placed indoors. The heat pump (1) may include an indoor unit (60). The heat pump (1) may include a distribution unit (10). The heat pump (1) may include a heating unit (30, 40 and / or 50). There is no limitation on the number of outdoor units (20) and indoor units.

[0055] The outdoor unit (20) can be placed outdoors. The outdoor unit (20) can exchange heat with outdoor air. The outdoor unit (20) can perform heat exchange between the refrigerant and the outdoor air by utilizing a phase change of the refrigerant (e.g., evaporation or condensation). For example, the outdoor unit (20) can release heat of the refrigerant to the outdoor air by utilizing condensation of the refrigerant. In addition, the outdoor unit (20) can absorb heat of the outdoor air into the refrigerant by utilizing evaporation of the refrigerant.

[0056] The indoor unit (60) can be placed indoors. The indoor unit (60) can exchange heat with indoor air. The indoor unit (60) can perform heat exchange between the refrigerant and indoor air by utilizing a phase change of the refrigerant (e.g., evaporation or condensation). For example, the indoor unit (60) can cool the air-conditioned space by absorbing heat from the indoor air into the refrigerant by utilizing evaporation of the refrigerant. In addition, the indoor unit (60) can heat the air-conditioned space by releasing heat from the refrigerant into the indoor air by utilizing condensation of the refrigerant. The indoor unit (60) can be referred to as a heating and cooling device (60).

[0057] The distribution unit (10) may be placed indoors. The distribution unit (10) may be arranged to distribute heating water to heating units (30, 40 and / or 50) that heat heating locations requiring heating.

[0058] In this document, heating water may refer to water used for heating. Heating water may flow along water pipes (W).

[0059] For example, the heating water may be arranged to be heated in an outdoor unit (20). For example, the heating water may be heated by heat exchange with a refrigerant through a heat exchanger (26, see FIG. 10) of the outdoor unit (20).

[0060] The above is merely one example of various methods by which heating water can be heated. It is also conceivable that the heating water can be heated by a separate heating device installed indoors. For example, a heat exchanger may be installed within the distribution unit (10), and the heating water may be heated in the distribution unit (10). Below, a method by which the heating water is heated by an outdoor unit (20) will be described as an example.

[0061] Heating units (30, 40, and / or 50) may be positioned indoors. Heating units (30, 40, and / or 50) may be configured to supply thermal energy to locations requiring heating by utilizing heating water. Additionally, heating units may be configured to directly supply heating water to locations requiring hot water.

[0062] The heat pump (1) may include a first heating unit (30).

[0063] For example, the first heating unit (30) may include a hot water supply unit (31). The hot water supply unit (31) may be arranged to directly provide heated heating water to the user according to the user's request.

[0064] For example, the first heating unit (30) may include a first heating valve (32). The first heating valve (32) may be provided in a water pipe (W) connecting the outdoor unit (20) and the first heating unit (30). The first heating valve (32) may open and close the water pipe (W) or control the flow rate of water flowing through the water pipe (W). In the drawing, the first heating valve (32) is illustrated as being one, but the present disclosure is not limited thereto, and a plurality of first heating valves (32) may be provided.

[0065] The heat pump (1) may include a second heating unit (40).

[0066] For example, the second heating unit (40) may include a device configured to heat an indoor space by performing heat exchange between heating water and indoor air. For example, the second heating unit (40) may include a radiator (41) configured to release the thermal energy of the heating water into the indoor atmosphere.

[0067] For example, the second heating unit (40) may include a second heating valve (42). The second heating valve (42) may be provided in a water pipe (W) connecting the outdoor unit (20) and the second heating unit (40). The second heating valve (42) may open and close the water pipe (W) or control the flow rate of water flowing through the water pipe (W). In the drawing, the second heating valve (42) is illustrated as being one, but the present disclosure is not limited thereto, and a plurality of second heating valves (42) may be provided.

[0068] For example, the second heating unit (40) may include a second heating unit controller (43). The second heating unit controller (43) may be arranged to control the operation of the second heating valve (42) and / or the operation of the radiator (41).

[0069] The heat pump (1) may include a third heating unit (50).

[0070] For example, the third heating unit (30) may be arranged to heat at least a portion of the space in which the third heating unit (30) is installed. For example, the third heating unit (50) may include an underfloor heater (51). For example, the third heating unit (50) may be arranged to heat the floor of the space in which the underfloor heater (51) is installed through the heat of the heating water. The underfloor heater (51) may be installed so as to pass through the floor in which the third heating unit (50) is installed.

[0071] For example, the third heating unit (50) may include a third heating valve (52). The third heating valve (52) may be provided in a water pipe (W) connecting the outdoor unit (20) and the third heating unit (50). The third heating valve (52) may open and close the water pipe (W) or control the flow rate of water flowing through the water pipe (W). In the drawing, the third heating valve (52) is illustrated as being one, but the present disclosure is not limited thereto, and a plurality of third heating valves (52) may be provided.

[0072] For example, the third heating unit (50) may include a third heating unit controller (53). The third heating unit controller (53) may be arranged to control the operation of the third heating valve (52) and / or the operation of the underfloor heater (51).

[0073] The heat pump (1) may include a refrigerant pipe (R). Any pipe provided to allow refrigerant to flow may be referred to as a refrigerant pipe (R). The refrigerant pipe (R) may be provided to connect an outdoor unit (20) and an indoor unit (60). The refrigerant may flow between the outdoor unit (20) and the indoor unit (60) through the refrigerant pipe (R). There is no limitation on the number of refrigerant pipes (R). The number of refrigeration exhaust pipes (R) may vary depending on the number of outdoor units (20) and the number of indoor units (60).

[0074] The heat pump (1) may include a water pipe (W). Any pipe through which water flows may be referred to as a water pipe (W). The water pipe (W) may be provided to connect the outdoor unit (20) and the distribution unit (10), or to connect the distribution unit (10) and the heating unit (30, 40 and / or 50). Water may flow between the outdoor unit (20) and the distribution unit (10) through the water pipe (W). Water may flow between the distribution unit (10) and the heating unit (30, 40 and / or 50) through the water pipe (W). The water pipe (W) may be provided to provide water heat-exchanged by a heat exchanger (26, see FIG. 10) to the heating unit (30, 40 and / or 50) or to recover water from the heating unit (30, 40 and / or 50). There is no limitation on the number of water pipes (W). The number of water pipes (W) may vary depending on the number of outdoor units (20), the number of distribution units (10), and the number of heating units.

[0075] As will be described later, for convenience in distinguishing the water pipes (W), the water pipes (W) at least partially disposed inside the distribution unit (10) may be referred to / indicated as water pipes (W1) (e.g., see FIGS. 3 to 5), and the water pipes (W) at least partially disposed inside the outdoor unit (20) may be referred to / indicated as water pipes (W2) (e.g., see FIGS. 10 and 11).

[0076] The types of heating units and the methods of supplying heat energy to heating locations mentioned above are merely examples, and it goes without saying that heating units can be installed and operated in various locations requiring heating and hot water supply.

[0077] FIG. 2 is a perspective view of a distribution unit according to various embodiments. FIG. 3 is an exploded perspective view showing a portion of a distribution unit according to various embodiments. FIG. 4 is a perspective view showing the interior of a distribution unit according to various embodiments. FIG. 5 is a perspective view showing the interior of a distribution unit viewed from a different direction than FIG. 4 according to various embodiments.

[0078] Referring to FIGS. 2 and 3, the distribution unit (10) may include a housing (11). The housing (11) may form the exterior of the distribution unit (10). The housing (11) may accommodate components for the operation of the distribution unit (10). For example, the housing (11) may accommodate components such as a tank (14), a tray (15), a filter device (not shown), an auxiliary heater (not shown), and a water pipe (W1). The housing (11) may be referred to as a cabinet (11), a case (11), a main body (11), or the like.

[0079] For example, the housing (11) may have a roughly box shape.

[0080] Below, an example of the structure of the housing (11) is described.

[0081] The housing (11) may include a front panel (101). The front panel (101) may form the front of the distribution unit (10).

[0082] The housing (11) may include a rear panel (102). The rear panel (102) may form the rear of the distribution unit (10).

[0083] The housing (11) may include a first side panel (103). The first side panel (103) may form the left side of the distribution unit (10).

[0084] The housing (11) may include a second side panel (104). The second side panel (104) may form the right side of the distribution unit (10).

[0085] The housing (11) may include a top cover (105). The top cover (105) may form an upper surface of the distribution unit (10). The top cover (105) may cover a space formed by surrounding the front panel (101), the rear panel (102), the first side panel (103), and the second side panel (104). The top cover (105) may be detachably coupled to the upper portions of each of the front panel (101), the rear panel (102), the first side panel (103), and the second side panel (104). The top cover (105) may also be formed integrally with some of the front panel (101), the rear panel (102), the first side panel (103), and the second side panel (104).

[0086] The housing (11) may include a base (100). A detailed description of the base will be provided later.

[0087] The distribution unit (10) may include a pipe fixing member (1051) formed in the housing (11). For example, the pipe fixing member (1051) may be formed in the top cover (105). The pipe fixing member (1051) may be provided to fix a water pipe (W1) extending from the inside of the housing (11) to the outside of the housing (11).

[0088] The distribution unit (10) may include an operating unit (12). At least a portion of the operating unit (12) may be provided on the front panel (101). For example, a user may control the operation of the distribution unit (10) through the operating unit (12). For example, controlling the operation of the distribution unit (10) may include controlling the opening and closing of the first heating valve (32), the second heating valve (42), and the third heating valve (52). For example, the operating unit (12) may be provided to receive user input. For example, the operating unit (12) may be provided to display information about the distribution unit (10).

[0089] The distribution unit (10) may include a power unit (13). The power unit (13) may be provided as a component of the operating unit (12). The power unit (13) may include a printed circuit board and various electronic components mounted on the printed circuit board.

[0090] The distribution unit (10) may include a water tank (14). The water tank (14) may be arranged inside the housing (11). The water tank (14) may be configured to accommodate water. For example, the water tank (14) may be configured to store heating water. For example, it may be configured to store water heat-exchanged by a heat exchanger. The water tank (14) may be configured to be connected to a water pipe (W1). As will be described later, the water tank (14) is an example of a water frame.

[0091] The distribution unit (10) may include a tray (15). The tray (15) may be placed inside the housing (11). The tray (15) may be provided to support a water pipe (W1). The water pipe (W1) may be placed on the tray (15). The tray (15) may be provided to receive water. Water generated on the surface of the water pipe (W1) may be collected in the tray (15). For example, condensate may be collected in the tray (15). As will be described later, the tray (15) is an example of a water frame.

[0092] The distribution unit (10) may include a filtering device (not shown) configured to be in communication with a water pipe (W). The filtering device may be configured to filter foreign substances contained in heating water passing through the filtering device. Although not explicitly shown in the drawing, the filtering device may be placed on a tray (15).

[0093] The distribution unit (10) may include an auxiliary heater (not shown) configured to be in communication with a water pipe (W). The auxiliary heater may be configured to heat heating water passing through the auxiliary heater. Accordingly, even if the temperature of the heating water flowing from the outside to the distribution unit (10) decreases, the temperature required for the heating location can be maintained by passing through the auxiliary heater. Although not explicitly shown in the drawing, the auxiliary heater may be placed on a tray (15).

[0094] The heat pump (1) may include a drainage structure. At least one unit included in the heat pump (1) may include a drainage structure. The distribution unit (10) may include a drainage structure. The drainage structure may include a base (100). The drainage structure may include at least one guide (200). The drainage structure may include at least one drainage plug (300). The drainage structure described in this document is not limited to the heat pump (1) and the units of the heat pump (1) (e.g., the distribution unit, the outdoor unit, the heating unit, and / or the indoor unit). It goes without saying that the drainage structure described in this document may be applied to various products.

[0095] FIG. 6 is an enlarged view of part A shown in FIG. 4 according to various embodiments. FIG. 7 is an enlarged view of part B shown in FIG. 5 according to various embodiments. FIG. 8 is an enlarged view of part C shown in FIG. 5 according to various embodiments.

[0096] Referring to FIGS. 6, 7 and 8 (which may also be referred to as FIGS. 6 to 8), a drainage structure applied to a distribution unit (10) is described as an example.

[0097] For convenience of explanation, considering the various embodiments (e.g., see FIGS. 9, 10 and 11) to be described later, the base (100), the guide (200), and the drain plug (300) can be distinguished as follows.

[0098] The base (100) of the distribution unit (10) may be referred to / expressed as a distribution base (100a), and the base (100) of the outdoor unit (20) to be described later may be referred to / expressed as an outdoor base (100c). Since the distribution base (100a) refers to the base (100) of the distribution unit (10), it goes without saying that the distribution base (100a) may be referred to as a base (100a). Since the outdoor base (100c) refers to the base (100) of the outdoor unit (20), it goes without saying that the outdoor base (100c) may be referred to as a base (100c). If there is no need to distinguish between each applicable product, the base may be referred to / expressed as a base (100). For example, the description of the base (100) may be a description common / applicable to both the distribution base (100a) and the outdoor base (100c).

[0099] In an example where the distribution unit (10) includes two drain plugs (300), one of the two drain plugs may be referred to / expressed as a first drain plug (300a), and the other of the two drain plugs may be referred to / expressed as a second drain plug (300b). The drain plug (300) of the outdoor unit (20) to be described later may be referred to / expressed as a third drain plug (300c). However, the first, second, and third ordinals of the first drain plug (300a), the second drain plug (300b), and the third drain plug (300c) do not limit their configuration. If there is no need to distinguish between the respective applicable products, the drain plugs may be referred to / expressed as drain plugs (300). That is, the description of the drain plug (300) may be a description common / applicable to all of the first drain plug (300a), the second drain plug (300b), and the third drain plug (300c).

[0100] In an example where the distribution unit (10) includes two guides (200), one of the two guides may be referred to / expressed as a first guide (200a), and the other of the two guides may be referred to / expressed as a second guide (200b). The guide (200) of the outdoor unit (20), which will be described later, may be referred to / expressed as a third guide (200c). However, the ordinal numbers "first," "second," and "third" of the first guide (200a), second guide (200b), and third guide (200c) do not limit their configuration. If there is no distinction between the respective applicable products, the guide may be referred to / expressed as a guide (200). That is, the description of the guide (200) may be a description that is common / applicable to all of the first guide (200a), the second guide (200b), and the third guide (200c).

[0101] The distribution unit (10) may include a distribution base (100a). The housing (11) may include the distribution base (100a). The distribution base (100a) may form a lower surface of the distribution unit (10). The distribution base (100a) may form the bottom of the housing (11). The distribution base (100a) may be provided to be supported by the ground. Components for the operation of the distribution unit (10) may be placed on the distribution base (100a). The distribution base (100a) may support the components for the operation of the distribution unit (10). For example, the distribution base (100a) may include a substantially flat plate shape.

[0102] The distribution unit (10) may include a water frame. The water frame may be disposed within a housing (11) and configured to accommodate water. The water frame may collectively refer to components disposed within the housing (11) for accommodating water. For example, the water frame may be a water tank (14). For example, the water frame may be a tray (15). For example, the water frame may be a water pipe (W1).

[0103] The distribution unit (10) may include at least one drain plug (300a; 300b). The drain plug (300a; 300b) may be provided to drain water collected in the distribution base (100a) and water contained in the water frame.

[0104] The distribution unit (10) may include at least one guide (200a; 200b). The guide (200a; 200b) may be arranged inside the housing (11) and configured to guide water. The guide (200a; 200b) may be configured to guide water within the water frame to the drain plug (300a; 300b). The guide (200a; 200b) may connect the water frame and the drain plug (300a; 300b). A first end (210) of the guide (200a; 200b) may be connected to the drain plug (300a; 300b). A second end (220) of the guide (200a; 200b) may be connected to the water frame.

[0105] For example, referring to FIG. 6, the distribution unit (10) may include a distribution base (100a), a first drain plug (300a), and a first guide (200a). The water frame may be a tank (14).

[0106] The first drain plug (300a) can be mounted on the distribution base (100a). The first guide (200a) can connect the tank (14) and the first drain plug (300a). The first end (210a) of the first guide (200a) can be connected to the first drain plug (300a), and the second end (220a) of the first guide (200a) can be connected to the tank (14). The first guide (200a) can guide water contained in the tank (14) to the first drain plug (300a). The water stored in the tank (14) can pass through the first guide (200a) and flow to the first drain plug (300a).

[0107] At least one clip (70) can be detachably mounted to the first guide (200a). For example, two clips (70) can be positioned adjacent to each of the two ends of the first guide (200a).

[0108] For example, referring to FIGS. 7 and 8, the distribution unit (10) may include a distribution base (100a), a second drain plug (300b), and a second guide (200b). The water frame may be a tray (15).

[0109] The second drain plug (300b) may be mounted on the distribution base (100a). The second guide (200b) may connect the tray (15) and the second drain plug (300b). A first end (210b) of the second guide (200b) may be connected to the second drain plug (300b), and a second end (220b) of the second guide (200b) may be connected to the tray (15). For example, the tray (15) may include a tray body (151) and a tray hole (152) formed through the tray body (151). For example, the tray (15) may have a shape that is inclined toward the tray hole (152) for smooth flow of water. The second guide (200b) may communicate the tray hole (152) and the second drain plug (300b). The second guide (200b) may be provided to guide water in the tray body (151) to the second drain plug (300b). Water collected in the tray body (151) may flow through the tray hole (152) and the second guide (200b) to the second drain plug (300b).

[0110] At least one clip (70) may be detachably mounted to the second guide (200b). For example, two clips (70) may be positioned adjacent to each of the two ends of the second guide (200b).

[0111] The drawing illustrates an example in which the distribution unit (10) includes two drain plugs (300a, 300b) and two guides (200a, 200b). However, the present disclosure is not limited to what is shown in the drawing. The distribution unit (10) may include one drain plug (300) and one guide (200). The distribution unit (10) may include three or more drain plugs (300) and three or more guides (200).

[0112] Fig. 9 is a perspective view of an outdoor unit according to various embodiments. Fig. 10 is an exploded perspective view showing a portion of an outdoor unit according to various embodiments.

[0113] Referring to FIGS. 9 and 10, the outdoor unit (20) may include a housing (21). The housing (21) may form the exterior of the outdoor unit (20). The housing (21) may accommodate components for the operation of the outdoor unit (20). For example, the housing (21) may accommodate components such as a first heat exchanger (22), a compressor (23), a fan (24), a control box (25), a second heat exchanger (26), an expansion tank (27), a valve (28, see FIG. 11), and a water pipe (W2). The housing (21) may be referred to as a cabinet (21), a case (21), a main body (21), or the like.

[0114] For example, the housing (21) may have a roughly box shape.

[0115] Below, an example of the structure of the housing (21) is described.

[0116] The housing (21) may include a first front frame (201). The first front frame (201) may cover the front (+X side) of a heat exchange chamber (R1) to be described later. An outlet (2011) may be formed in the first front frame (201).

[0117] The housing (21) may include a second front frame (202). The second front frame (202) may cover the front (+X side) of the machine room (R2) to be described later. For example, the second front frame (202) may be formed in a substantially flat plate shape.

[0118] For example, a plurality of heat dissipation holes may be formed in the second front frame (202) so that the machine room (R2) can be connected to the outside of the outdoor unit (20) to release heat within the machine room (R2).

[0119] The housing (21) may include a first rear frame (203). The first rear frame (203) may form a part of the rear exterior of the outdoor unit (20). The first rear frame (203) may be positioned at the rear (-X side) of the heat exchange chamber (R1). An inlet (2031) may be formed in the first rear frame (203).

[0120] The housing (21) may include a second rear frame (204). The second rear frame (204) may form another part of the rear exterior of the outdoor unit (20). The second rear frame (204) may cover the rear (-X side) of the machine room (R2).

[0121] For example, a plurality of heat dissipation holes may be formed in the second rear frame (204) so ​​that the machine room (R2) can be connected to the outside of the outdoor unit (20) and heat within the machine room (R2) can be released.

[0122] The housing (21) may include a first side frame (205). The first side frame (205) may form a left side of the outdoor unit (20). The first side frame (205) may cover a heat exchange room (R1). The first side frame (205) may cover the heat exchange room (R1) from the left side. An inlet (2051) may be formed in the first side frame (205).

[0123] The housing (21) may include a second side frame (206). The second side frame (206) may form a right side of the outdoor unit (20). The second side frame (206) may cover the machine room (R2). The second side frame (206) may cover the machine room (R2) from the right side.

[0124] For example, a plurality of heat dissipation holes may be formed in the second side frame (206) so that the machine room (R2) can be connected to the outside of the outdoor unit (20) and heat within the machine room (R2) can be released.

[0125] The housing (21) may include a top cover (207). The top cover (207) may form the upper surface of the outdoor unit (20). The top cover (207) may cover the upper side (+Z side) of the heat exchange room (R1) and the machine room (R2). The top cover (207) may cover various components of the outdoor unit (20) accommodated inside the housing (21) from the upper side. The top cover (207) may be coupled to the upper part of each of the first front frame (201), the second front frame (202), the second rear frame (204), the first side frame (205), and the second side frame (206). Alternatively, the top cover (207) may be formed integrally with some of the first front frame (201), the second front frame (202), the second rear frame (204), the first side frame (205), and the second side frame (206).

[0126] The housing (21) may include a grill (208). The grill (208) may cover the front (+X side) of the first front frame (201). The grill (208) may cover the front (+X side) of the outlet (2011). The grill (208) may be coupled to the first front frame (201). The grill (208) may form a part of the front exterior of the outdoor unit (20).

[0127] The housing (21) may include a front cover (209). The front cover (209) may cover the front (+X side) of the second front frame (202). The front cover (209) may be coupled to the second front frame (202). The front cover (209) may form another part of the front exterior of the outdoor unit (20).

[0128] The housing (21) may include a base (100). A detailed description of the base will be provided later.

[0129] The housing (21) may include an inlet (2031; 2051) formed to allow air to flow in and an outlet (2011) formed to allow air to flow out. As the fan (24) rotates, air outside the housing (21) may flow in through the inlet (2031; 2051), and after exchanging heat with the first heat exchanger (22), may be discharged to the outside of the housing (21) through the outlet (2011).

[0130] The outdoor unit (20) may include a heat exchange chamber (R1) formed inside the housing (21). Outside air may be introduced into the heat exchange chamber (R1), and the introduced air may be discharged back to the outside. In the heat exchange chamber (R1), heat exchange may take place between the first heat exchanger (22) and the air introduced from the outside. For example, components such as the first heat exchanger (22), a fan (24), and the like may be arranged in the heat exchange chamber (R1).

[0131] The outdoor unit (20) may include a machine room (R2) formed inside the housing (21). For example, components such as a compressor (23), a control box (25), a second heat exchanger (26), and an expansion tank (27) may be placed in the machine room (R2).

[0132] Inside the housing (21), the heat exchange room (R1) and the machine room (R2) can be partitioned from each other. The outdoor unit (20) can include a partition (29) that partitions the heat exchange room (R1) and the machine room (R2). The partition (29) can be placed between the heat exchange room (R1) and the machine room (R2). The partition (29) can be coupled to the housing (21).

[0133] The outdoor unit (20) may include a first heat exchanger (22). The first heat exchanger (22) may be configured to exchange heat with outdoor air. The first heat exchanger (22) may be configured to allow a refrigerant to flow therein. Heat exchange between the refrigerant and outdoor air may occur in the first heat exchanger (22).

[0134] The outdoor unit (20) may include a compressor (23). The compressor (23) may compress refrigerant gas and discharge the refrigerant gas at high temperature and high pressure. For example, the compressor (23) may include a motor and a compression mechanism, and the compression mechanism may compress the refrigerant gas by the torque of the motor.

[0135] The outdoor unit (20) may include a fan (24). The fan (24) may be configured to circulate air. The fan (24) may draw in and expel air.

[0136] The outdoor unit (20) may include a second heat exchanger (26). The second heat exchanger (26) may be configured to exchange heat between a refrigerant and water. The second heat exchanger (26) may be disposed within the housing (21). For example, the second heat exchanger (26) may be disposed in the machine room (R2). For example, the second heat exchanger (26) may include a plate heat exchanger.

[0137] The outdoor unit (20) may not include a second heat exchanger (26). For example, a heat exchanger for heat exchange between refrigerant and water may be placed indoors. The heat exchanger for heat exchange between refrigerant and water may be provided as a component of one of the units placed indoors, or may be provided as a separate component from the units placed indoors.

[0138] The outdoor unit (20) may include a water pipe (W2) configured to allow water to flow in from the outside or to discharge water. The water pipe (W2) may be connected to a second heat exchanger (26). The water pipe (W2) may be configured to supply water to the second heat exchanger (26) or discharge water heat-exchanged by the second heat exchanger (26). At least a portion of the water pipe (W2) may be disposed inside the housing (21). For example, at least a portion of the water pipe (W2) may be disposed in the machine room (R2).

[0139] Water introduced into the outdoor unit (20) from the outside through the water pipe (W2) can perform heat exchange with the high-temperature refrigerant within the second heat exchanger (26). Within the second heat exchanger (26), the water can absorb heat from the high-temperature refrigerant and transfer it back to the outside of the outdoor unit (20) through the water pipe (W2).

[0140] The outdoor unit (20) may include an expansion tank (27). When the water temperature rises by the second heat exchanger (26), the volume within the water pipe (W2) may increase, and the expansion tank (27) may be provided to prevent / suppress a sudden increase in water pressure due to this. The expansion tank (27) may be arranged inside the housing (21). For example, the expansion tank (27) may be arranged in the machine room (R2).

[0141] The outdoor unit (20) may include a valve (28) (see, for example, FIG. 11). The valve (28) may be configured to be connected to a water pipe (W2). The valve (28) may be configured to receive water. The valve (28) may be configured to control the pressure and / or temperature of the water within the water pipe (W2). For example, the valve (28) may be opened based on the pressure of the water within the water pipe (W2) being higher than a set pressure or the temperature of the water within the water pipe (W2) being higher than a set temperature. For example, when the valve (28) is opened, the water within the water pipe (W2) may flow into the valve (28). As an example, the valve (28) may include a TPR valve (Temperature and Pressure Relief Valve).

[0142] FIG. 11 is an enlarged perspective view showing a portion of an outdoor unit according to various embodiments.

[0143] Referring to Fig. 11, the drainage structure of the outdoor unit (20) is described.

[0144] The outdoor unit (20) may include an outdoor base (100c). The housing (21) may include the outdoor base (100c). The outdoor base (100c) may form a lower surface of the outdoor unit (20). The outdoor base (100c) may form the bottom of the housing (21). The outdoor base (100c) may be provided to be supported by the ground. Components for the operation of the outdoor unit (20) may be placed on the outdoor base (100c). The outdoor base (100c) may support the components for the operation of the outdoor unit (20). For example, the outdoor base (100c) may include a substantially flat plate shape.

[0145] The outdoor unit (20) may include a water frame. The water frame may be disposed within a housing (21) and configured to receive water. The water frame may collectively refer to components disposed within the housing (21) for receiving water. For example, the water frame may be a valve (28). For example, the water frame may be a water pipe (W2).

[0146] The outdoor unit (20) may include at least one drain plug (300c). The drain plug (300c) may be provided to drain water collected in the outdoor base (100c) and water contained in the water frame.

[0147] The outdoor unit (20) may include at least one guide (200c). The guide (200c) may be arranged inside the housing (21) and configured to guide water. The guide (200c) may be configured to guide water within the water frame to a drain plug (300c). The guide (200c) may connect the water frame and the drain plug (300c).

[0148] For example, referring to FIG. 11, the outdoor unit (20) may include an outdoor base (100c), a third drain plug (300c), and a third guide (200c). The water frame may include a valve (28).

[0149] The third drain plug (300c) can be mounted on the outdoor base (100c). The third guide (200c) can connect the valve (28) and the third guide (200c). The first end (210c) of the third guide (200c) can be connected to the third drain plug (300c), and the second end (220c) of the third guide (200c) can be connected to the valve (28). The third guide (200c) can guide water contained in the valve (28) to the third drain plug (300c). The water in the valve (28) can flow through the third guide (200c) to the third drain plug (300c).

[0150] At least one clip (70) may be detachably mounted to the third guide (200c). For example, the clip (70) may be positioned adjacent to the second end (220c) of the third guide (200c).

[0151] The drawing illustrates an example in which the outdoor unit (20) includes one drain plug (300c) and one guide (200c). However, the present disclosure is not limited to what is shown in the drawing. The outdoor unit (20) may include a plurality of drain plugs (300) and a plurality of guides (200).

[0152] FIG. 12 is a perspective view of a drain plug, a base, and a guide according to various embodiments. FIG. 13 is an exploded perspective view of a drain plug, a base, and a guide according to various embodiments. FIG. 14 is a perspective view of a drain plug according to various embodiments. FIG. 15 is a view of a drain plug according to various embodiments, viewed from a different direction than FIG. 14. FIG. 16 is a perspective view of a drain plug according to various embodiments, viewed from a different direction than FIGS. 14 and 15.

[0153] According to one embodiment, a product having a drainage structure (e.g., a heat pump (1), a distribution unit (10), an outdoor unit (20), or other home appliances) may include a base (100), a guide (200), and a drain plug (300). Accordingly, the housing described below may refer to a housing of a product having a drainage structure. In addition, the base described below may refer to a base of a housing of a product having a drainage structure.

[0154] The base (100) may include an opening (110). The opening (110) may be provided so that a drain plug (300) can be inserted therein. The opening (110) may be formed through the base (100). The opening (110) may connect the interior (I) of the housing and the exterior (O) of the housing.

[0155] The opening (110) may include a body hole (111). The body hole (111) may be provided to correspond to a drain body (310) of a drain plug (300) to be described later.

[0156] The opening (110) may include a stopper hole (112). The stopper hole (112) may include a hole extending from a portion of the body hole (111). The stopper hole (112) may extend from a portion of the body hole (111) to the outside of the body hole (111). For example, the stopper hole (112) may extend radially outwardly of the body hole (111). The stopper hole (112) may extend along a circumferential direction (d, see FIG. 13) of the body hole (111). The stopper hole (112) may extend along the perimeter of the body hole (111). For example, the stopper hole (112) may include an approximately circular arc shape.

[0157] The stopper hole (112) may be provided to correspond to the stopper (350) of the drain plug (300) described later. There is no limitation on the number of stopper holes (112). However, the number of stopper holes (112) may correspond to the number of stoppers (350).

[0158] For example, when the drain plug (300) includes a first stopper (350a) and a second stopper (350b), the opening (110) may include a first stopper hole (112a) and a second stopper hole (112b). The first stopper hole (112a) may extend from a portion of the body hole (111) to the outside of the body hole (111), and the second stopper hole (112b) may extend from another portion of the body hole (111) to the outside of the body hole (111). The second stopper hole (112b) may be spaced apart from the first stopper hole (112a) along the circumferential direction (d) of the body hole (111).

[0159] The base (100) may include a border (120) that is provided to define an opening (110). As the opening (110) is formed in the base (100), the border (120) may also be formed. An inner portion of the border (120) in the base (100) may be the opening (110).

[0160] For example, the opening (110) may include a first edge portion (121) provided to define a body hole (111) and a second edge portion (122) provided to define a stopper hole (112). The second edge portion (122) may extend from the first edge portion (121) to the outside of the first edge portion (121).

[0161] The guide (200) may be arranged inside (I) of the housing. The guide (200) may be arranged to guide water inside (I) of the housing.

[0162] The guide (200) may be arranged to connect a water frame (e.g., water tank (14), tray (15), valve (28), water pipe (W)) and a drain plug (300). A first end (210) of the guide (200) is connectable to the drain plug (300), and a second end (220) of the guide (200) is connectable to the water frame. The first end (210) of the guide (200) is coupleable to the drain plug (300), and the second end (220) of the guide (200) is coupleable to the water frame. The first end (210) of the guide (200) may be in communication with the drain plug (300), and the second end (220) of the guide (200) may be in communication with the water frame.

[0163] The guide (200) may be configured to guide water contained in the water frame to the drain plug (300). The guide (200) may be configured to transfer water within the water frame to the drain plug (300). The guide (200) may include a guide path (230) configured to allow water in the water frame to flow. For example, water flowing along the guide path (230) may flow downward.

[0164] The guide (200) may be referred to as a hose (200), a duct (200), a tube (200), a line (200), a pipe (200), a conduit (200), etc.

[0165] The drain plug (300) is detachably mountable to the base (100). The drain plug (300) can be detachably coupled to the base (100). The drain plug (300) can be mounted to the base (100) by being inserted into the opening (110). For example, the drain plug (300) can be inserted into the opening (110) from below the base (100). While the drain plug (300) is mounted to the base (100), a portion of the drain plug (300) can be positioned inside (I) of the housing, and another portion of the drain plug (300) can be positioned outside (O) of the housing.

[0166] The drain plug (300) may include a drain body (310). The drain body (310) may be insertable into the opening (110). The drain body (310) may be provided to correspond to the body hole (111) of the opening (110). The drain body (310) may be inserted into the body hole (111) of the opening (110). The drain body (310) may be provided to be positioned within the body hole (111) of the opening (110). For example, the drain body (310) may include a substantially hollow shape.

[0167] The drain body (310) can form a drain passage (311). The drain passage (311) can be configured to allow water to flow. The drain passage (311) can be provided to discharge water flowing into the drain passage (311) to the outside (O) of the housing. While the drain plug (300) is mounted on the base (100), the drain passage (311) can extend from the inside (I) of the housing to the outside (O) of the housing.

[0168] The drain body (310) may include a bend (312). The bend (312) may be necessary to set the drainage direction of the drain plug (300). The bend (312) may allow water to flow smoothly along the drainage path (311).

[0169] The drain body (310) may include a body protrusion (313). The body protrusion (313) may protrude from the outer surface of the drain body (310). For example, when a hose is connected to the discharge port (340) described later, the body protrusion (313) may be provided to be in close contact with the hose. For example, a plurality of body protrusions (313) may be provided, and the plurality of body protrusions (313) may be spaced apart from each other along the extension direction of the drain body (310). However, there is no limitation on the number of body protrusions (313).

[0170] The drain plug (300) may include a discharge port (340). The discharge port (340) may be formed at one end of the drain body (310). The discharge port (340) may be provided at one end (3111) of the drain path (311). The discharge port (340) may be provided to discharge water flowing into the drain plug (300). The discharge port (340) may be provided to discharge water guided by the drain path (311). While the drain plug (300) is mounted on the base (100), the discharge port (340) may be arranged on the exterior (O) of the housing. The discharge port (340) may be provided to communicate with the exterior (O) of the housing.

[0171] The drain plug (300) may include a through hole (320). The through hole (320) may be formed by penetrating the drain body (310). The through hole (320) may be in communication with the drain passage (311). While the drain plug (300) is mounted on the base (100), the through hole (320) may communicate the interior (I) of the housing with the drain passage (311). The through hole (320) may be provided to allow water to flow.

[0172] For example, the drain plug (300) may include a plurality of through holes (320), and the plurality of through holes (320) may be spaced apart along the circumference of the drain body (310). For example, the drain plug (300) may include two through holes (320), and the two through holes (320) may be arranged to face each other.

[0173] For example, the through hole (320) may include an approximately 'U' shape. For example, the through hole (320) may include a first hole portion (321), a second hole portion (322), and a third hole portion (323). The first hole portion (321) may extend approximately along a vertical direction (Z direction). The second hole portion (322) may be spaced apart from the first hole portion (321) and may extend approximately along a vertical direction (Z direction). The third hole portion (323) may be provided to connect the first hole portion (321) and the second hole portion (322).

[0174] However, the present disclosure is not limited to the above-described examples, and the number and / or shape of the through holes (320) may vary.

[0175] The drain plug (300) may include a guide connection portion (330). The guide connection portion (330) may extend from the drain body (310). For example, the guide connection portion (330) may extend upward from the drain body (310). For example, the guide connection portion (330) may extend approximately vertically (Z direction) from the drain body (310). The guide connection portion (330) may be provided on the upper portion of the drain body (310).

[0176] The guide connecting portion (330) may be provided to be connectable to the guide (200). The guide connecting portion (330) may be provided to be coupleable to the guide (200). For example, the guide connecting portion (330) may be connected to the guide (200) in a substantially vertical direction (Z direction). For example, the guide (200) may be inserted into the guide connecting portion (330). For example, the guide (200) may be provided to surround the guide connecting portion (330). For example, the guide (200) may be provided to cover the guide connecting portion (330). As the guide connecting portion (330) and the guide (200) are connected, intrusion of rodents, pests, etc. may be prevented and / or reduced.

[0177] The guide connecting portion (330) may include a connecting passage (331). The connecting passage (331) may be connected to a drain passage (311). A first end of the connecting passage (331) may be provided to communicate with the drain passage (311), and a second end (3311) of the connecting passage (331) may be provided to be open. For example, the second end (3311) of the connecting passage (331) may be opened upward. While the guide connecting portion (330) and the guide (220) are connected, the second end (3311) of the connecting passage (331) may be provided to communicate with the guide passage (230).

[0178] The guide connecting portion (330) may include a connecting body (332). The connecting body (332) may have a substantially hollow shape. The connecting body (332) may form a connecting path (331). The connecting body (332) may form the overall appearance of the guide connecting portion (330). A guide (200) may be inserted into the connecting body (332).

[0179] The guide connecting portion (330) may include a contact protrusion (333). The contact protrusion (333) may be provided to contact the inner surface of the guide (200). The contact protrusion (333) may protrude from the outer surface of the connecting body (332). For example, the contact protrusion (333) may have a shape that tapers upward. With this shape, the guide connecting portion (330) and the guide (200) may not be easily separated. For example, the contact protrusion (333) may be provided in multiple numbers, and the multiple contact protrusions (333) may be spaced apart along the extension direction of the guide connecting portion (330). However, there is no limitation on the number of contact protrusions (333).

[0180] The drain plug (300) may include a stopper (350). The stopper (350) may be formed on the drain body (310). The stopper (350) may protrude from the outer surface of the drain body (310). The stopper (350) may be provided to limit the rotational range of the drain plug (300) with respect to the base (100). The stopper (350) may be provided to interfere with the base (100).

[0181] The stopper (350) can be inserted into the opening (110). The stopper (350) may be provided to correspond to the stopper hole (112) of the opening (110). The stopper (350) may be provided to be positioned within the stopper hole (112) of the opening (110). The stopper (350) may not be positioned within the body hole (111) of the opening (110). The stopper (350) may be configured so as not to pass through the body hole (111) of the opening (110).

[0182] For example, the drain plug (300) may include a plurality of stoppers (350), and the plurality of stoppers (350) may be spaced apart along the circumferential direction of the drain body (310). For example, the drain plug (300) may include a first stopper (350a) and a second stopper (350b). For example, when the first stopper (350a) corresponds to the first stopper hole (112a), the second stopper (350b) may correspond to the second stopper hole (112b). For example, when the first stopper (350a) corresponds to the second stopper hole (112b), the second stopper (350b) may correspond to the first stopper hole (112a). However, the present disclosure is not limited to the examples described above, and there is no limitation on the number of stoppers (350). For example, the drain plug (300) may include one stopper (350).

[0183] The drain plug (300) may include a plate (360). The plate (360) may extend from an outer surface of the drain body (310). The plate (360) may be formed below the guide connection portion (330). While the drain plug (300) is mounted to the base (100), the plate (360) may be positioned on the exterior (O) of the housing. The plate (360) may be in close contact with the lower surface (1002, see FIGS. 17 and 18) of the base (100). The plate (360) may be positioned below the opening (110). For example, the plate (360) may have a shape that tapers downward. For example, the plate (360) may include an approximately funnel shape.

[0184] The plate (360) may be arranged to guide water passing through the opening (110) to the drainage passage (311). Thus, water passing through the opening (110) may be guided by the drainage passage (311) and discharged through the discharge port (340).

[0185] The drain plug (300) may include a catch (370). The catch (370) may be formed around the through hole (320).

[0186] A first side (372) of the catch (370) may be connected to the drain body (310), and a second side (373) of the catch (370) may be surrounded by a through hole (320). For example, the first side (372) may be provided as a fixed end, and the second side (373) may be provided as a free end. The second side (373) may be provided to rotate with respect to the first side (372).

[0187] The catch protrusion (370) may be provided to be elastically deformable. When the drain plug (300) is inserted into the opening (110), the catch protrusion (370) may be pressed by the edge (120) to be elastically deformed. The catch protrusion (370) may be provided to contact the first edge portion (121). When the drain plug (300) is completely mounted on the base (100), the catch protrusion (370) may be restored to its original shape.

[0188] While the drain plug (300) is mounted on the base (100), the catch (370) may be provided to be supported by the upper surface (1001, see FIGS. 17 and 18) of the base (100). The catch (370) may be provided to contact the upper surface (1001) of the base (100). At least a portion of the catch (370) may be disposed within the interior (I) of the housing. While the drain plug (300) is mounted on the base (100), the catch (370) may prevent / repress the drain plug (300) from being separated downward from the base (100).

[0189] The catch (370) may have a shape that tapers upward. The catch (370) may include a sloped surface (371) to facilitate passage through the opening (110). While the drain plug (300) is mounted on the base (100), the sloped surface (371) may be pressed by the first edge portion (121).

[0190] For example, the drain plug (300) may include a plurality of catches (370), and the plurality of catches (370) may be spaced apart along the circumference of the drain body (310). For example, the drain plug (300) may include two catches (370), and the two catches (370) may be arranged to face each other. However, the present disclosure is not limited to the examples described above, and the number and / or shape of the catches (370) may vary.

[0191] FIG. 17 is a cross-sectional view taken along line DD' shown in FIG. 12 according to various embodiments. FIG. 18 is a cross-sectional view taken along line EE' shown in FIG. 12 according to various embodiments.

[0192] The upper surface (1001) of the base (100) may be arranged to face the inside (I) of the housing. The upper surface (1001) of the base (100) may be arranged to contact the catch (370) of the drain plug (300). The lower surface (1002) of the base (100) may be arranged to face the outside (O) of the housing. The lower surface (1002) of the base (100) may be arranged to contact the plate (360) of the drain plug (300).

[0193] The guide (200) can be placed inside (I) of the housing. The guide (200) can connect the drain plug (300) and the water frame. The first end (210) of the guide (200) can be connected to the guide connection portion (330) of the drain plug (300). The first end (210) of the guide (200) can be in communication with the guide connection portion (330) of the drain plug (300). The second end (220) of the guide (200) can be connected to the water frame. The second end (220) of the guide (200) can be in communication with the water frame.

[0194] A guide (200) may be provided to guide water within the interior (I) of the housing. The guide (200) may guide water contained in the water frame to the drain plug (300). The guide (200) may transfer water within the water frame to the drain plug (300). The water within the water frame may flow along the guide (200) toward the drain plug (300).

[0195] For example, the guide (200) can connect the drain plug (300) and the water tank (14) (see, for example, FIG. 6). The second end (220) of the guide (200) can be in communication with the water tank (14). At this time, the guide (200) can be arranged to guide water in the water tank (14) to the drain plug (300).

[0196] For example, the guide (200) can connect the drain plug (300) and the tray (15) (see, for example, FIGS. 7 and 8). The second end (220) of the guide (200) can be in communication with the tray (15). At this time, the guide (200) can be arranged to guide water in the tray (15) to the drain plug (300). The guide (200) can be arranged to guide water accumulated in the tray body (151) to the drain plug (300).

[0197] For example, the guide (200) can connect the drain plug (300) and the valve (28) (see, for example, FIG. 11). The second end (220) of the guide (200) can be in communication with the valve (28). At this time, the guide (200) can be arranged to guide water from the valve (28) to the drain plug (300).

[0198] However, the present disclosure is not limited to the examples described above, and the water frame may be configured to be placed inside the housing and contain water.

[0199] The drain plug (300) can be mounted on the base (100) by being inserted into the opening (110). A part of the drain plug (300) can be placed inside (I) of the housing, and the remainder of the drain plug (300) can be placed outside (O) of the housing. The guide connecting portion (330) can be placed inside (I) of the housing and connected to the guide (200). The discharge port (340) can be placed outside (O) of the housing. The discharge port (340) can be in communication with the outside (O) of the housing.

[0200] While the drain plug (300) is mounted on the base (100), a through hole (320) may be provided to guide water in the base (100) to a drainage path (311). The through hole (320) may be provided to receive water in the base (100). The through hole (320) may be provided to allow water within the base (100) to flow in. Water collected in the base (100) may flow in to the drainage path (311) through the through hole (320).

[0201] While the drain plug (300) is mounted on the base (100) and the guide connection (330) and the guide (200) are connected, the guide connection (330) may be provided to guide water within the guide (200) to the drainage path (311). The guide connection (330) may be provided to receive water guided by the guide (200). The guide connection (330) may be provided to allow water guided by the guide (200) to flow in. The guide connection (330) may be provided to receive water in the water frame through the guide (200). Water within the guide (200) may flow into the drainage path (311) through the guide connection (330).

[0202] A drain plug (300) may be provided to be mounted on the base (100) to perform drainage. In addition, the drain plug (300) may be provided to discharge refrigerant as well as water.

[0203] Referring to Figures 17 and 18, the fluid flow is described.

[0204] An example of the flow of water (F1, see solid arrow) draining from the base (100) through the drain plug (300) is described.

[0205] Water may accumulate in the base (100). For example, water such as water from the water tank, condensate, etc. may be collected in the base (100). If water accumulated in the base (100) is left for a long period of time, it may cause contamination, corrosion, damage, etc., or may reduce the efficiency of the product. Therefore, the base (100) may be drained.

[0206] Water in the base (100) can flow into the through hole (320). Water in the base (100) can pass through the through hole (320). Water accumulated in the base (100) can pass through the through hole (320) and flow into the drainage channel (311). The drainage channel (311) can guide water flowing from the base (100) through the through hole (320). Water flowing through the through hole (320) can flow along the drainage channel (311) to the outlet (340). The outlet (340) can discharge water flowing through the through hole (320) to the outside (O) of the housing.

[0207] An example of the flow of water (F2, see dashed arrow) draining from the water frame through the drain plug (300) is described.

[0208] The water frame can accommodate water. For example, during maintenance of the water tank (14), the water tank (14) may be drained (see, for example, FIG. 6). For example, if water collected in the tray (15) is left for a long period of time, contamination, corrosion, etc. may occur, and if the water overflows and flows into the electrical components (13), it may cause a malfunction. Therefore, the tray (15) may be drained (see, for example, FIGS. 7 and 8). For example, in order to control the temperature and / or pressure of the water in the water pipe (W2), it may be necessary to discharge the water flowing into the valve (28) from the water pipe (W2) (see, for example, FIG. 11).

[0209] Water contained in the water frame can flow through the guide (200) to the guide connection (330). Water within the water frame can be guided along the guide (200) and pass through the guide connection (330). Water guided by the guide (200) can pass through the guide connection (330) and flow into the drainage channel (311). The drainage channel (311) can guide water flowing in through the guide connection (330) from the guide (200). Water flowing in through the guide connection (330) can flow along the drainage channel (311) to the discharge port (340). The discharge port (340) can discharge water flowing in through the guide connection (330) to the outside (O) of the housing.

[0210] According to the present disclosure, the drain plug (300) can discharge not only water accumulated in the base (100) but also water contained in the water frame. The drain plug (300) can simultaneously discharge water in the base (100) and water in the water frame. The discharge port (340) can be provided to discharge water flowing in through the through hole (320) and water flowing in through the guide connection portion (330). That is, the drain plug (300) can have a dual drainage structure. With just one drain plug (300), both drainage of the base (100) and drainage of the water frame are possible. The drainage performance and usability of the drain plug (300) can be improved.

[0211] An example of the flow of refrigerant (L, see the dashed arrow) discharged from the inside (I) of the housing to the outside (O) of the housing through the drain plug (300) is described.

[0212] Components (e.g., refrigerant piping) that accommodate and / or guide refrigerant may be positioned within the housing (I). For example, if a crack develops in the refrigerant piping, refrigerant may leak, which may result in a fire, explosion, or other accident. Therefore, the leaked refrigerant may need to be discharged.

[0213] The leaked refrigerant can flow into the through hole (320). The leaked refrigerant can pass through the through hole (320). The leaked refrigerant can flow into the drain passage (311) through the through hole (320). The drain passage (311) can guide the refrigerant flowing in through the through hole (320). The refrigerant flowing in through the through hole (320) can flow along the drain passage (311) to the discharge port (340). The discharge port (340) can discharge the refrigerant flowing in through the through hole (320) to the outside (O) of the housing.

[0214] According to the present disclosure, the drain plug (300) can discharge leaked refrigerant. Accordingly, the drain plug (300) can prevent and / or reduce accidents such as fire and explosion caused by leaked refrigerant.

[0215] The drain plug (300) may be provided to prevent / inhibit the detachment of the guide (200). The guide connection portion (330) of the drain plug (300) and the guide (200) may be connected. For example, the guide connection portion (330) and the guide (200) may be joined by a forced fit. For example, if the guide is inserted into the opening of the base without separate fixation, the guide may be easily detached from the base due to the pressure of the water within the guide. However, in the case of the present disclosure, the guide (200) may be secured to the base (100) via the drain plug (300) and may not be easily detached. Accordingly, water within the guide (200) may be drained through the drain plug (300) without infiltrating into the machine room or other components within the product.

[0216] In addition, leakage between the drain plug (300) and the base (100) can be minimized or prevented / reduced. The upper portion of the drain plug (300) (e.g., the guide connection portion (330)) can be connected to the guide (200). The guide (200) can hold the upper portion of the drain plug (300). For example, the guide connection portion (330) and the guide (200) can be coupled in a force-fit manner. For example, if the upper portion of the drain plug is not connected to the guide, the coupling force between the drain plug and the base may be reduced, resulting in a gap. In the present disclosure, since the guide connection portion (330) of the drain plug (300) is connected to the guide (200), the occurrence of a gap between the drain plug (300) and the base (100) can be minimized and / or reduced. This can reduce and / or prevent water leakage between the drain plug (300) and the base (100).

[0217] Fig. 19 is a cross-sectional view showing a state in which a drain plug is in a first position according to various embodiments. Fig. 20 is a cross-sectional view showing a state in which a drain plug is in a second position according to various embodiments. Fig. 21 is a cross-sectional view showing a state in which a drain plug is in a third position according to various embodiments. Fig. 22 is a cross-sectional view showing a state in which a drain plug is in a fourth position according to various embodiments.

[0218] The drain plug (300) may include a stopper (350), and the opening (110) of the base (100) may include a stopper hole (112).

[0219] The stopper (350) may be arranged to interfere with the base (100) to limit the rotational range of the drain plug (300) relative to the base (100). As a result, the drain plug (300) can only rotate within a predetermined rotational range.

[0220] The stopper (350) may be arranged to contact at least a portion of the edge (120) defining the opening (110) of the base (100). The stopper (350) may interfere with the second edge portion (122) defining the stopper hole (112). The stopper (350) may be arranged to contact the second edge portion (122). The stopper (350) may be arranged to be caught by the second edge portion (122) when it rotates beyond a predetermined rotation range. The stopper (350) may be positioned only within the stopper hole (112) by interfering with the second edge portion (122). The stopper (350) may be prevented / restrained from moving toward the body hole (111) by interfering with the second edge portion (122).

[0221] The stopper hole (112) may extend along the circumferential direction (d) of the body hole (111). The stopper hole (112) may include a first point (131) and a second point (132) formed on the opposite side of the first point (131). The first point (131) may be a point adjacent to the first edge portion (121), and the second point (132) may be another point provided on the opposite side of the first point (131) and adjacent to the first edge portion (121).

[0222] The drain plug (300) is rotatable between a position where the stopper (350) is provided at a first point (131) (e.g., see FIG. 19 or FIG. 21) and a position where the stopper (350) is provided at a second point (132) (e.g., see FIG. 20 or FIG. 22). The drain plug (300) is rotatable within a predetermined rotation range.

[0223] Referring to FIGS. 19 and 20, the first stopper (350a) may correspond to the first stopper hole (112a), and the second stopper (350b) may correspond to the second stopper hole (112b). The drain plug (300) may be rotatable between a first position (P1) and a second position (P2). The rotation range of the drain plug (300) may be limited between the first position (P1) and the second position (P2).

[0224] Referring to Fig. 19, a drain plug (300) may be provided at a first position (P1). A first stopper (350a) may be provided at a first point (131a) of a first stopper hole (112a), and a second stopper (350b) may be provided at a first point (131b) of a second stopper hole (112b). For example, the first point (131a) of the first stopper hole (112a) and the first point (131b) of the second stopper hole (112b) may be provided to face each other.

[0225] Referring to Fig. 20, the drain plug (300) may be provided at a second position (P2). The first stopper (350a) may be provided at a second point (132a) of the first stopper hole (112a), and the second stopper (350b) may be provided at a second point (132b) of the second stopper hole (112b). For example, the second point (132a) of the first stopper hole (112a) and the second point (132b) of the second stopper hole (112b) may be provided to face each other.

[0226] For example, a drain plug (300) provided at a first position (P1) can be moved to a second position (P2) by rotating clockwise. For example, a drain plug (300) provided at a second position (P2) can be moved to a first position (P1) by rotating counterclockwise.

[0227] Referring to FIGS. 19 and 20, the exhaust port (340) may be arranged to face relatively toward the outside of the base (100). The exhaust port (340) may be arranged to face one edge (1003) of the base (100).

[0228] Referring to FIGS. 21 and 22, the first stopper (350a) may correspond to the second stopper hole (112b), and the second stopper (350b) may correspond to the first stopper hole (112a). The drain plug (300) may be rotatable between the third position (P3) and the fourth position (P4). The rotation range of the drain plug (300) may be limited between the third position (P3) and the fourth position (P4).

[0229] Referring to Fig. 21, the drain plug (300) may be provided at the third position (P3). The first stopper (350a) may be provided at the first point (131b) of the second stopper hole (112b), and the second stopper (350b) may be provided at the first point (131a) of the first stopper hole (112a).

[0230] Referring to Fig. 22, the drain plug (300) may be provided at the fourth position (P4). The first stopper (350a) may be provided at the second point (132b) of the second stopper hole (112b), and the second stopper (350b) may be provided at the second point (132a) of the first stopper hole (112a).

[0231] For example, a drain plug (300) provided at a third position (P3) can be moved to a fourth position (P4) by rotating clockwise. For example, a drain plug (300) provided at a fourth position (P4) can be moved to a third position (P3) by rotating counterclockwise.

[0232] Referring to FIGS. 21 and 22, the exhaust port (340) may be arranged to face relatively inwardly of the base (100). The exhaust port (340) may be arranged so as not to face one edge (1003) of the base (100).

[0233] According to the present disclosure, the drain plug (300) may include a stopper (350) configured to limit / limit the rotational range of the drain plug (300) with respect to the base (100). The stopper (350) may prevent / block the drain plug (300) from rotating approximately 360 degrees with respect to the base (100). This may prevent / prevent the guide (200) connected to the drain plug (300) from twisting. For example, if the drain plug rotates approximately 360 degrees after being mounted on the base, the guide may twist, and the flow of water flowing along the guide may not be smooth. For example, if the drain plug rotates after being mounted on the base, a gap may be formed between the base and the drain plug.

[0234] According to the present disclosure, it is easy to set the drainage direction of the drain plug (300) to correspond to various installation environments. When the drain plug (300) is mounted on the base (100), the drainage direction of the drain plug (300) can be set. In addition, the drainage direction of the drain plug (300) can be adjusted by rotating the drain plug (300) within a predetermined rotation range after mounting it on the base (100).

[0235] For example, when the drain plug (300) is mounted on the base (100) such that the first stopper (350a) corresponds to the first stopper hole (112a) and the second stopper (350b) corresponds to the second stopper hole (112b) (e.g., see FIGS. 19 and 20), the drainage direction of the drain plug (300) can be relatively directed toward the outside of the base (100). The drain plug (300) can be rotated between the first position (P1) and the second position (P2), thereby adjusting the drainage direction of the drain plug (300).

[0236] For example, when the drain plug (300) is mounted on the base (100) such that the first stopper (350a) corresponds to the second stopper hole (112b) and the second stopper (350b) corresponds to the first stopper hole (112a) (e.g., see FIGS. 21 and 22), the drainage direction of the drain plug (300) can be relatively directed toward the inside of the base (100). The drain plug (300) can be rotated between the third position (P3) and the fourth position (P4), thereby adjusting the drainage direction of the drain plug (300).

[0237] Although the drawing illustrates a heat pump as an example, the present disclosure is not limited to what is illustrated in the drawing. The drain plug (300) of the present disclosure is not only applicable to the heat pump (1) and the units (10, 20, 30, 40, 50 and / or 60) of the heat pump (1). The drain plug (300) of the present disclosure can be applied to all products having a component that receives water (e.g., a humidifier, a washing machine, a dishwasher, etc.). For example, the drain plug (300) is mounted on the base (100) of the humidifier, the through hole (320) of the drain plug (300) guides water in the base (100) of the humidifier, and the drain plug (300) can be connected to a water tank placed inside the humidifier to guide water in the water tank.

[0238] According to an exemplary embodiment of the present disclosure, a heat pump may include a housing including a base; a guide disposed inside the housing and configured to guide water; and a drain plug detachably mountable to the base. The drain plug may include a drain body forming a drainage path. The drain plug may include a through hole formed through the drain body, the through hole configured to guide water in the base to the drainage path while the drain plug is mounted on the base. The drain plug may include a guide connecting portion extending from the drain body and connectable to the guide, the guide connecting portion configured to guide water in the guide to the drainage path while the drain plug is mounted on the base and the guide connecting portion is connected to the guide.

[0239] While the drain plug is mounted on the base, the drain path may be provided to extend from the inside of the housing to the outside of the housing and guide water flowing in through the through hole from the base and water flowing in through the guide connection from the guide.

[0240] The above drain plug may further include a discharge port provided at one end of the drain passage and configured to communicate with the exterior of the housing. The discharge port may be provided to discharge water guided by the drain passage.

[0241] The drain plug may further include a stopper protruding from the outer surface of the drain body. The stopper may be arranged to interfere with the base so as to limit the rotational range of the drain plug with respect to the base.

[0242] The base may include an opening. The drain plug may be mounted to the base by being inserted into the opening. The stopper may be arranged to contact at least a portion of a rim defining the opening of the base.

[0243] The base may include an opening. The drain plug may be mounted to the base by being inserted into the opening. The opening may include a body hole provided to correspond with the drain body. The opening may include a stopper hole provided to correspond with the stopper and extending from a portion of the body hole to the outside of the body hole.

[0244] The stopper hole may extend along the circumferential direction of the body hole and may have a first point and a second point formed on the opposite side of the first point. The drain plug may be provided to be rotatable between a position where the stopper is provided at the first point of the stopper hole and a position where the stopper is provided at the second point of the stopper hole.

[0245] The stopper may be a first stopper, and the stopper hole may be a first stopper hole. The drain plug may further include a second stopper spaced apart from the first stopper and protruding from an outer surface of the drain body. The opening may further include a second stopper hole that extends from another part of the body hole to the outside of the body hole and is provided to correspond to the second stopper.

[0246] The above guide connecting portion may further include a contact protrusion provided to contact the inner surface of the guide.

[0247] The above guide connecting portion may be provided to extend upward from the drain body and be vertically connected to the guide. The contact protrusion may include a shape that tapers upward.

[0248] The heat pump may further include a heat exchanger; and a water tank disposed inside the housing and configured to store water heat-exchanged by the heat exchanger. The guide may be configured to connect the water tank and the drain plug and guide water in the water tank to the drain plug.

[0249] A heat pump may include: a heat exchanger; a heating unit disposed outside and inside the housing; a water pipe provided to supply water heat-exchanged by the heat exchanger to the heating unit or to recover water from the heating unit, the water pipe having at least a portion disposed inside the housing; and a tray provided inside the housing and configured to support the water pipe, the tray including a tray body and a tray hole formed through the tray body. The guide may be provided to communicate the tray hole with the drain plug and guide water in the tray body to the drain plug.

[0250] A heat pump may include a heat exchanger; a water pipe connected to the heat exchanger and configured to supply water to the heat exchanger or discharge water heat-exchanged by the heat exchanger; and a valve connected to the water pipe and opened based on whether the pressure of water in the water pipe is higher than a set pressure or the temperature of water in the water pipe is higher than a set temperature. The guide may be configured to connect the valve and the drain plug and guide water from the valve to the drain plug.

[0251] The base may include an opening. The drain plug may be mounted to the base by being inserted into the opening. The drain plug may further include a plate having a shape that extends from the outer surface of the drain body, is in close contact with the lower surface of the base, and tapers downward, and is provided to guide water passing through the opening into the drainage channel.

[0252] The base may include an opening. The drain plug may be mounted to the base by being inserted into the opening. The drain plug may further include a catch formed around the through hole, the catch being configured to be supported by the upper surface of the base.

[0253] According to an exemplary embodiment of the present disclosure, a heat pump may include a housing including a base having an opening formed therein; a water frame disposed inside the housing and configured to receive water; a drain plug detachably mounted to the base; and a guide connecting the water frame and the drain plug to transfer water within the water frame to the drain plug. The drain plug may include a drain body configured to be inserted into the opening. The drain plug may include a guide connecting portion extending upward from the drain body and vertically connected to the guide. The guide connecting portion may be configured to receive water guided by the guide. The drain plug may include a stopper protruding from an outer surface of the drain body. The stopper may be configured to contact at least a portion of a border defining the opening of the base.

[0254] The above drain plug may further include a through hole formed through the drain body and provided to receive water of the base.

[0255] The above drain plug may further include a discharge port formed at one end of the drain body and provided to communicate with the exterior of the housing. The discharge port may be provided to discharge water introduced through the guide connecting portion and water introduced through the through hole.

[0256] The above opening may include a body hole provided to correspond to the drain body; and a stopper hole provided to correspond to the stopper and extending from a portion of the body hole to the outside of the body hole.

[0257] A drain plug according to an exemplary embodiment of the present disclosure may be detachably mounted on a base of a housing. The drain plug may include: a drain body; a through hole formed through the drain body and provided to communicate the inside of the housing with the drainage passage, through which water of the base flows; and a guide connecting portion extending upward from the drain body and connectable to a guide arranged inside the housing to guide water, through which water guided by the guide flows.

[0258] According to the present disclosure, the drain plug may have an improved structure.

[0259] According to the present disclosure, the drain plug can drain water from the base and the water frame. That is, the drain plug can have a dual drainage structure. This can improve the drainage performance of the drain plug, and also increase the usability of a product (e.g., a heat pump) including the drain plug.

[0260] According to the present disclosure, the drain plug can discharge leaked refrigerant through a through hole. This can prevent and / or reduce accidents such as explosions and fires.

[0261] According to the present disclosure, the drain plug can prevent / inhibit the guide from dislodging. This can prevent and / or reduce water within the guide from flowing into the machine room inside the product.

[0262] According to the present disclosure, the drain plug may include a stopper configured to limit the rotational range of the drain plug. As a result, twisting of a guide connected to the drain plug can be prevented / reduced.

[0263] According to the present disclosure, it is easy to set the drainage direction of the drain plug to correspond to various installation environments.

[0264] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned will be clearly understood by a person having ordinary skill in the art to which the present disclosure pertains.

[0265] While the present disclosure has been described and illustrated with reference to various exemplary embodiments, it is to be understood that these various exemplary embodiments are illustrative and not limiting. Those skilled in the art will appreciate and recognize that various modifications are possible without departing from the scope of the appended claims and their equivalents. It is also to be understood that any embodiment(s) described herein can be used in conjunction with any other embodiment(s) described herein.

Claims

1. Housing including the base; A guide arranged inside the housing and designed to guide water; and A drain plug detachably mountable to the above base; The above drain plug, A drainage body forming a drainage path; A through hole penetrating the drain body, the through hole being provided to guide water in the base to the drainage path while the drain plug is mounted on the base; and A heat pump comprising a guide connecting portion extending from the drain body and connectable to the guide, wherein the drain plug is mounted on the base and the guide connecting portion is connected to the guide, and the guide connecting portion is configured to guide water in the guide to the drainage path.

2. In paragraph 1, While the above drain plug is mounted on the above base, A heat pump in which the above drainage path extends from the inside of the housing to the outside of the housing and is provided to guide water flowing in through the through hole from the base and water flowing in through the guide connection from the guide.

3. In paragraph 2, The above drain plug, A heat pump further comprising a discharge port provided at one end of the drainage passage and configured to communicate with the outside of the housing, and provided to discharge water guided by the drainage passage.

4. In paragraph 1, The above drain plug, A heat pump further comprising a stopper protruding from the outer surface of the drain body and arranged to interfere with the base to limit the rotational range of the drain plug with respect to the base.

5. In paragraph 4, The above base includes an opening, The above drain plug is mounted to the base by being inserted into the above opening, A heat pump wherein the stopper is arranged to contact at least a portion of a rim defining the opening of the base.

6. In paragraph 4, The above base includes an opening, The above drain plug is mounted to the base by being inserted into the above opening, The above opening is, A body hole corresponding to the above drain body; and A heat pump further comprising a stopper hole extending from a portion of the body hole to the outside of the body hole and corresponding to the stopper.

7. In paragraph 6, The above stopper hole extends along the circumferential direction of the body hole and has a first point and a second point provided on the opposite side of the first point, The above drain plug, A heat pump rotatable between a position where the stopper is provided at a first point of the stopper hole and a position where the stopper is provided at a second point of the stopper hole.

8. In paragraph 6, The above stopper is the first stopper, The above stopper hole is a first stopper hole, The above drain plug, Further comprising a second stopper spaced apart from the first stopper and protruding from the outer surface of the drain body, The above opening is, A heat pump further comprising a second stopper hole extending from another part of the body hole to the outside of the body hole and corresponding to the second stopper.

9. In paragraph 1, The above guide connection part is, A heat pump further comprising a contact projection arranged to contact the inner surface of the above guide.

10. In paragraph 6, The above guide connection portion extends upward from the drain body and is vertically connectable to the guide, A heat pump wherein the above contact projection includes a shape that tapers upward.

11. In paragraph 1, heat exchanger; and Further comprising a water tank arranged inside the housing and configured to store water heat-exchanged by the heat exchanger; The above guide is a heat pump that connects the water tank and the drain plug and is provided to guide water in the water tank to the drain plug.

12. In paragraph 1, heat exchanger; A heating unit placed outside and inside the housing; A water pipe arranged to provide water heat-exchanged by the heat exchanger to the heating unit or to recover water from the heating unit, at least a portion of which is disposed inside the housing; and A tray disposed inside the housing and configured to support the water pipe, comprising: a tray including a tray body and a tray hole penetrating the tray body; A heat pump in which the above guide is provided to connect the tray hole and the drain plug and guide water in the tray body to the drain plug.

13. In paragraph 1, heat exchanger; A water pipe connected to the heat exchanger and provided to supply water to the heat exchanger or discharge water heat-exchanged by the heat exchanger; and A valve connected to the water pipe and opened based on whether the pressure of the water in the water pipe is higher than a set pressure or the temperature of the water in the water pipe is higher than a set temperature; A heat pump in which the above guide connects the valve and the drain plug and is provided to guide water from the valve to the drain plug.

14. In paragraph 1, The above base includes an opening, The above drain plug, It is mounted on the base by being inserted into the above opening, A heat pump further comprising a plate having a shape that extends from the outer surface of the drain body, contacts the lower surface of the base, and tapers downward, and is provided to guide water passing through the opening to the drainage passage.

15. In paragraph 1, The above base includes an opening, The above drain plug, It is mounted on the base by being inserted into the above opening, A heat pump further comprising a catch formed around the through hole, the catch being supported by the upper surface of the base.

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