Tank and heat pump including same

Abstract

A tank comprises: a cylindrical portion having a cylindrical shape; and an insulator provided to surround the outer circumferential surface of the cylindrical portion and insulating the cylindrical portion. The insulator comprises: a first insulator surrounding the outer circumferential surface of the cylindrical portion and divided into a plurality of first divided insulators; vacuum insulators seated on the outer circumferential surface of each of the plurality of first divided insulators; and a plurality of second insulators disposed to surround the outer circumferential surface of the vacuum insulators, and assembled so that the plurality of first divided insulators on which the vacuum insulators sit are located on the inner circumferential surface of the second insulators.

Description

Tank and heat pump containing it

[0001] The disclosed invention relates to a tank insulated by a vacuum insulator having an improved assembly structure and a heat pump including the same.

[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 include a distribution unit installed indoors that receives heated heating water and distributes the heating water to multiple 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] The distribution unit may include a tank. The tank may be cylindrical and include a cylindrical portion storing water therein. The water stored within the cylindrical portion may be insulated by an insulating material surrounding the cylindrical portion to maintain its temperature.

[0007] The insulation material that insulates the cylindrical portion may include vacuum insulation. The vacuum insulation material may be directly attached to the outer surface of the cylindrical portion using double-sided tape. The cylindrical portion with the vacuum insulation material attached to the outer surface may be protected by EPS insulation material covering the exterior.

[0008] One aspect of the disclosed invention provides a tank insulated by a vacuum insulator assembled by an improved assembly structure and a heat pump including the tank.

[0009] In addition, a tank insulated by a triple insulation structure including vacuum insulation and a heat pump including the same are provided.

[0010] In addition, a tank and a heat pump including the tank are provided, in which a vacuum insulation material is divided into a plurality of pieces and assembled to be positioned between a first insulation material and a second insulation material.

[0011] In addition, a tank and a heat pump including the tank are provided, in which a vacuum insulation material is bent and can be closely attached to the outer surface of a first insulation material.

[0012] In addition, a tank having a triple insulation structure including vacuum insulation can be easily assembled, and a heat pump including the same are provided.

[0013] In addition, a tank and a heat pump including the tank are provided, in which a pair of second insulation materials can be tightly connected between the tank, a pair of second insulation materials and a lower cover, and a pair of second insulation materials and an upper cover.

[0014] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0015] According to one embodiment of the disclosed invention, a tank includes a cylindrical portion having a cylindrical shape and an insulator that surrounds an outer circumferential surface of the cylindrical portion and insulates the cylindrical portion. The insulator includes a first insulator that surrounds the outer circumferential surface of the cylindrical portion and is divided into a plurality of first segmented insulators, a vacuum insulator that is mounted on the outer circumferential surface of each of the plurality of first segmented insulators, and a second insulator that is mounted in a plurality of pieces and is arranged to surround the outer circumferential surface of the vacuum insulator, wherein the plurality of first segmented insulators on which the vacuum insulator is mounted are assembled so as to be positioned on the inner circumferential surface of the second insulator.

[0016] According to one embodiment of the disclosed invention, a tank includes a cylindrical portion formed in a cylindrical shape and an insulator provided to surround an outer circumferential surface of the cylindrical portion. The insulator includes a lower cushion assembled to a lower portion of the cylindrical portion, an upper cushion assembled to an upper portion of the cylindrical portion, a first insulator provided to surround an outer circumferential surface of the cylindrical portion and divided into a plurality of first segmented insulators, a vacuum insulator mounted so as to contact the outer circumferential surfaces of each of the plurality of first segmented insulators, and a second insulator arranged to surround the outer circumferential surfaces of the vacuum insulators, wherein the plurality of first segmented insulators on which the vacuum insulators are mounted are assembled so as to be located on an inner circumferential surface of the second insulator, and the second insulator is assembled to the lower cushion and the upper cushion.

[0017] FIG. 1 is a schematic diagram illustrating a heat pump according to one embodiment.

[0018] FIG. 2 is a perspective view illustrating a portion of a distribution unit and piping according to one embodiment.

[0019] FIG. 3 is an exploded view of a portion of a distribution unit and a portion of piping according to one embodiment.

[0020] Figure 4 is a perspective view of a tank according to one embodiment.

[0021] Figure 5 is an exploded perspective view of a tank according to one embodiment.

[0022] Figure 6 is a cross-sectional view of a tank according to one embodiment.

[0023] FIG. 7 is a drawing illustrating a state in which a vacuum insulator according to one embodiment is manufactured into a flat shape and then bent.

[0024] FIG. 8 is a drawing illustrating a bent vacuum insulation material according to one embodiment being placed on the outer surface of a first segmented insulation material.

[0025] FIG. 9 is a drawing illustrating a first segmented insulation material having a vacuum insulation material installed thereon according to one embodiment being assembled to a second segmented insulation material.

[0026] FIG. 10 is a drawing illustrating a pair of second segmented insulators assembled with a first segmented insulator having a vacuum insulator installed thereon according to one embodiment being assembled to a lower cushion.

[0027] FIG. 11 is a drawing showing an upper cushion assembled to the upper portion of a cylindrical portion according to one embodiment.

[0028] Fig. 12 is a cross-sectional view of a tank according to one embodiment.

[0029] FIG. 13 is a drawing showing an insert bracket being injection-molded inside a pair of second insulating materials and an upper cushion according to one embodiment, and a fixing bracket being coupled to the insert bracket.

[0030] FIG. 14 is a drawing illustrating an embodiment in which an insert bracket is injection-molded inside a pair of second insulating materials and a lower cushion, and a fixing bracket is coupled to the insert bracket.

[0031] The embodiments described in this disclosure and the configurations illustrated in the drawings are merely preferred examples of the disclosure, and there may be various modified examples that can replace the embodiments and drawings of the disclosure at the time of filing of this application.

[0032] Additionally, the same reference numbers or symbols presented in each drawing of the present disclosure represent parts or components that perform substantially the same function.

[0033] In addition, the terminology used in this disclosure is used to describe embodiments and is not intended to limit and / or restrict the disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this disclosure, terms such as "comprise" or "have" are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the disclosure, but do not preemptively exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0034] Additionally, in the present disclosure, each of the phrases such as “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 among those phrases, or all possible combinations thereof.

[0035] Additionally, the term "and / or" includes any combination of a plurality of related described elements or any element among a plurality of related described elements.

[0036] Additionally, terms including ordinal numbers such as "first," "second," etc., used in this disclosure may be used to describe various components, but the components are not limited by the terms, and the terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present disclosure, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term "and / or" includes any combination of a plurality of related listed items or any item among a plurality of related listed items.

[0037] Furthermore, the meaning of "identical" in this disclosure includes having similar properties or being similar within a certain range. Furthermore, "identical" means "substantially identical." "Substantially identical" should be understood to include values ​​that fall within the manufacturing error range or values ​​that differ from a reference value within a range that has no significance.

[0038] Additionally, terms such as "~part", "~device", "~block", "~absence", and "~module" may refer to a unit that processes at least one function or operation. For example, the terms may refer to at least one hardware such as an FPGA (field-programmable gate array) / ASIC (application specific integrated circuit), at least one software stored in a memory, or at least one process processed by a processor.

[0039] Meanwhile, the terms “front,” “rear,” “left,” and “right” 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.

[0040] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0041] Heat pumps can perform indoor cooling / heating, indoor floor heating, and hot water supply through heat exchange between air and refrigerant, heat exchange between refrigerants, or heat exchange between refrigerants and water.

[0042] FIG. 1 is a schematic diagram illustrating a heat pump according to one embodiment.

[0043] As illustrated in FIG. 1, the heat pump (1) may include an outdoor unit (10) including a compressor, an expansion valve, and a heat exchanger. The heat pump (1) may include an indoor unit connected to the outdoor unit (10) via at least one pipe. The number of outdoor units (10) and indoor units may not be limited as illustrated in FIG. 1.

[0044] The outdoor unit (10) may be arranged outdoors to perform heat exchange between a refrigerant and outdoor air. The compressor, expansion valve, and heat exchanger of the outdoor unit (10) may be arranged to allow the refrigerant to flow, thereby performing heat exchange between the refrigerant and outdoor air. The outdoor unit (10) may utilize a phase change (e.g., evaporation or condensation) of the refrigerant to perform heat exchange between the refrigerant and outdoor air. For example, the outdoor unit (10) may utilize condensation of the refrigerant to release heat to the outdoor air. Additionally, the outdoor unit (10) may utilize evaporation of the refrigerant to absorb heat from the outdoor air.

[0045] The heat pump (1) may include an indoor unit (20). The indoor device may include the indoor unit (20). The indoor unit (20) may be placed indoors. The outdoor unit (10) and the indoor unit (20) may be connected via a refrigerant supply pipe (21) and a refrigerant return pipe (22). The outdoor unit (10) may supply refrigerant to the indoor unit (20) via the refrigerant supply pipe (21). The refrigerant supply pipe (21) may include an indoor unit valve (23). The indoor unit valve (23) is provided to be openable and closable, thereby controlling the flow of refrigerant flowing in the refrigerant supply pipe (21). The outdoor unit (10) may recover refrigerant from the indoor unit (20) via the refrigerant return pipe (22). The indoor unit (20) may include a heat exchanger. The indoor unit (20) can perform heat exchange between the refrigerant and indoor air by utilizing the phase change of the refrigerant (e.g., evaporation or condensation). For example, the indoor unit (20) can absorb heat from indoor air into the refrigerant by utilizing evaporation of the refrigerant. Additionally, the indoor unit (20) can release heat from the refrigerant into the indoor air by utilizing condensation of the refrigerant. The indoor unit (20) may be referred to as an indoor unit (20) or a heating and cooling device (20).

[0046] The heat pump (1) may include a distribution unit (30). The indoor unit may include the distribution unit (30). The distribution unit (30) may be placed indoors. The outdoor unit (10) and the distribution unit (30) may be connected via a heating water supply pipe (37) and a heating water return pipe (38). The outdoor unit (10) may supply heating water to the distribution unit (30) via the heating water supply pipe (37). The outdoor unit (10) may recover heating water from the distribution unit (30) via the heating water return pipe (38). The distribution unit (30) may be arranged to distribute heating water to heating units (40; 50; 60) that heat heating locations requiring heating. The heating water may refer to water used for heating.

[0047] The heating water may be arranged to be heated in an outdoor unit (10). For example, the heating water may be heated by heat exchange with a refrigerant through a heat exchanger of the outdoor unit (10).

[0048] The above is merely one example of various methods by which heating water can be heated, and 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 (30), and the heating water may be heated by the heat exchanger of the distribution unit (30). Below, a method by which the heating water is heated by the heat of the refrigerant in the outdoor unit (10) will be described as an example.

[0049] The heat pump (1) may include a heating unit (40, 50 and / or 60). The indoor unit may include a heating unit (40, 50 and / or 60). The heating unit (40, 50 and / or 60) may be placed indoors.

[0050] The heat pump (1) may include a first heating unit (40). The distribution unit (30) and the first heating unit (40) may be connected via a first supply pipe (41) and a first return pipe (42). The distribution unit (30) may supply heating water to the first heating unit (40) via the first supply pipe (41). The distribution unit (30) may recover heating water from the first heating unit (40) via the first return pipe (42).

[0051] The first heating unit may include a hot water unit (44). The hot water unit (44) may be arranged to provide heated heating water directly to the user according to the user's request.

[0052] The first heating unit (40) may include a first heating valve (43). The first heating valve (43) may be configured to open and close the first supply pipe (41). The first heating valve (43) may open and close the first supply pipe (41) or control the flow rate of flowing heating water. The present disclosure is not limited thereto, and a plurality of first heating valves (43) may be provided.

[0053] The heat pump (1) may include a second heating unit (50). The heating units (40; 50; 60) may include a second heating unit (50). The distribution unit (30) and the second heating unit (50) may be connected via a second supply pipe (51) and a second return pipe (52). The distribution unit (30) may supply heating water to the second heating unit (50) via the second supply pipe (51). The distribution unit (30) may recover heating water from the second heating unit (50) via the second return pipe (52).

[0054] The second heating unit (50) may include a radiator (54). The radiator (54) may be arranged to heat the indoor air by exchanging heat with the indoor air.

[0055] The second heating unit (50) may include a second heating valve (53). The second heating valve (53) may be configured to open and close the second supply pipe (51). The second heating valve (53) may open and close the second supply pipe (51) or control the flow rate of flowing heating water. The present disclosure is not limited thereto, and a plurality of second heating valves (53) may be provided.

[0056] The second heating unit (50) may include a second heating unit controller (55). The second heating unit controller (55) may control the second heating unit valve (53). The second heating unit controller (55) may be arranged to control the operation of the radiator (54).

[0057] The heat pump (1) may include a third heating unit (60). The heating units (40; 50; 60) may include a third heating unit (60). The distribution unit (30) and the third heating unit (60) may be connected via a third supply pipe (61) and a third return pipe (62). The distribution unit (30) may supply heating water to the third heating unit (60) via the third supply pipe (61). The distribution unit (30) may recover heating water from the third heating unit (60) via the third return pipe (62).

[0058] The third heating unit (60) may include an underfloor heater (64). The underfloor heater (64) may be configured to heat the floor. That is, the third heating unit (60) may be configured to heat the floor on which the underfloor heater (64) is installed through the heat of the heating water.

[0059] The third heating unit (60) may include a third heating valve (63). The third heating valve (63) may be configured to open and close the third supply pipe (61). The third heating valve (63) may open and close the third supply pipe (61) or control the flow rate of flowing heating water. The present disclosure is not limited thereto, and a plurality of third heating valves (63) may be provided.

[0060] The third heating unit (60) may include a third heating unit controller (65). The third heating unit controller (65) may control the third heating unit valve (63). The third heating unit controller (65) may be configured to control the operation of the underfloor heater (64).

[0061] The types of the above-mentioned heating units (40, 50 and / or 60) and the methods of supplying thermal energy to the heating location are merely examples, and it goes without saying that the heating units (40, 50 and / or 60) can be installed and operated in various locations requiring heating and hot water supply.

[0062] The heat pump (1) may include a refrigerant pipe (R). A pipe through which a refrigerant flows may be referred to as a refrigerant pipe (R). The refrigerant pipe (R) may be provided to connect an outdoor unit (10) and an indoor unit (20). The refrigerant may flow between the outdoor unit (10) and the indoor unit (20) through the refrigerant pipe (R). The number of refrigerant pipes (R) may vary depending on the number of outdoor units (10) and the number of indoor units (20).

[0063] The heat pump (1) may include a pipe (W, see FIG. 3). The pipe (W) may be provided to allow water to flow. The pipe (W) may be provided to connect an outdoor unit (10) and a distribution unit (30). The pipe (W) may be provided to connect the distribution unit (30) and a heating unit (40, 50 and / or 60). Water may flow between the outdoor unit (10) and the distribution unit (30) through the pipe (W). Water may flow between the distribution unit (30) and the heating unit (40, 50 and / or 60) through the pipe (W). The number of pipes (W) may vary depending on the number of outdoor units (10), distribution units (30) and heating units (40, 50 and / or 60).

[0064] FIG. 2 is a perspective view illustrating a portion of a distribution unit and piping according to one embodiment. FIG. 3 is a drawing illustrating a portion of a distribution unit and a portion of piping according to one embodiment.

[0065] As illustrated in FIGS. 2 and 3, the distribution unit (30) may include a cabinet (31). The cabinet (31) may form the exterior of the distribution unit (30). The cabinet (31) may include a front panel (31a) forming the front, side panels (31b, 31c) forming both side surfaces, a rear panel (31d) forming the rear, a top cover (31e) forming the upper surface, and a base (31f) forming the lower surface.

[0066] The front panel (31a) may include an operation unit (31a1) formed to face forward (+X direction). A user may control the operation of the distribution unit (30) through the operation unit (31a1). For example, a user may control the first heating valve (43), the second heating valve (53), and the third heating valve (63) through the operation unit (31a1). The operation unit (31a1) may be configured to display information about the distribution unit (30).

[0067] The side panels (31b, 31c) may include a first side panel (31b) forming the right side of the distribution unit (30) and a second side panel (31c) forming the left side of the distribution unit (30).

[0068] The top cover (31e) can cover the upper part of the space formed by the front panel (31a), the rear panel (31d), the first side panel (31b), and the second side panel (31c). The top cover (31e) can be detachably coupled to the upper part of each of the front panel (31a), the rear panel (31d), the first side panel (31b), and the second side panel (31c). The top cover (31e) can be formed integrally with the front panel (31a), the rear panel (31d), the first side panel (31b), or the second side panel (31c).

[0069] The distribution unit (30) may include an internal space formed inside the cabinet (31). For example, the internal space may be defined as a space formed by a front panel (31a), a rear panel (31d), side panels (31b, 31c), a top cover (31e), and a base (31f).

[0070] The interior space of the cabinet (31) can accommodate components for the operation of the distribution unit (30). For example, the interior space can accommodate a tank (70), a filter device (32), an auxiliary heater (33), a power unit (34), a pipe (W), a tray (36), etc.

[0071] The distribution unit (30) may include a tank (70). The tank (70) may be arranged in the interior space. The tank (70) may be configured to accommodate water. The tank (70) may be configured to store heating water. The tank (70) may be configured to store water heat-exchanged by a heat exchanger. The tank (70) may be configured to be connected to a pipe (W).

[0072] The distribution unit (30) may include a tray (36). The tray (36) may be placed inside the cabinet (31). A main body (34) may be installed (mounted) on the tray (36). The tray (36) may be provided to support a pipe (W). Water generated on the surface of the pipe (W) may be collected on the tray (36). Water flowing in from the pipe (W) may be collected on the tray (36).

[0073] The distribution unit (30) may include a filter device (32). The filter device (32) may be placed inside the cabinet (31). The filter device (32) may be configured to communicate with a pipe (W). The filter device (32) may be configured to filter foreign substances contained in heating water passing through the filter device (32). The heating water flowing from the outside to the distribution unit (30) through the pipe (W) may be arranged to pass through the filter device (32).

[0074] The distribution unit (30) may include an auxiliary heater (33). The auxiliary heater (33) may be placed inside the cabinet (31). The auxiliary heater (33) may be configured to be connected to a pipe (W). The auxiliary heater (33) may be provided to heat heating water passing through the auxiliary heater (33). The auxiliary heater (33) may be provided to maintain a required temperature of the heating water flowing through the distribution unit (30).

[0075] The distribution unit (30) may include a front section (34). The front section (334) may be placed inside the cabinet (31). The front section (34) may include a printed circuit board. The front section (34) may include various electronic components mounted on the printed circuit board. The front section (34) may be supported by a tray (36). The front section (34) may be rotatably coupled to the tray (36). The front section (34) may be rotatably coupled to the tray (36).

[0076] A portion of a pipe (W) may be arranged inside the distribution unit (30). A portion of the pipe (W) may be arranged inside the cabinet (31). The pipe (W) may be arranged to be connected to a tank (70). The pipe (W) may be connected to the tank (70) to supply or recover heating water to the tank (70).

[0077] The distribution unit (30) may include a hose (35). One end of the hose (35) may be connected to a tray (36). The other end of the hose (35) may be connected to the outside of the cabinet (31). Water collected in the tray (36) may be drained to the outside through the hose (35). The hose (250) may be referred to as a tube, line, pipe, or the like.

[0078] The distribution unit (30) may include a base (31f). The base (31f) may include a drain plug (31f1) that is connected to the outside. A hose (35) may be connected to the drain plug (31f1). Water flowing inside the hose (35) may be drained to the outside of the cabinet (31) through the drain plug (31f1).

[0079] Fig. 4 is a perspective view of a tank according to one embodiment. Fig. 5 is an exploded perspective view of a tank according to one embodiment. Fig. 6 is a cross-sectional view of a tank according to one embodiment.

[0080] As shown in FIGS. 4 to 6, the tank (70) may include a cylindrical portion (71) having a cylindrical shape and an insulator (100) surrounding the outer circumference of the cylindrical portion (71).

[0081] Water can be stored inside the cylindrical portion (71). The water stored inside the cylindrical portion (21) can be insulated by an insulator (100) surrounding the outer surface of the cylindrical portion (71) to maintain its temperature.

[0082] The insulator (100) may be arranged to surround the cylindrical portion (71). The insulator (100) may be assembled at the lower and upper portions to the lower cushion (150) and the upper cushion (160), respectively.

[0083] The insulator (100) may include a lower cushion (150) assembled to the lower portion of the cylindrical portion (71). The lower cushion (150) may be assembled to the lower portion of the cylindrical portion (71) to cover the lower portion of the cylindrical portion (71). The lower cushion (150) may be formed of the same material as the second insulating material (140) of the insulator (100) to be described below. That is, the lower cushion (150) may be formed of an EPS (Expanded Poly Styrene) insulating material to protect the vacuum insulator (130, VIP (Vacuum Insulation Panel)) from external stimuli. The lower cushion (150) may include a first groove (151) into which a portion of the insulator (100) surrounding the outer circumferential surface of the cylindrical portion (71) is assembled.

[0084] The insulator (100) may include an upper cushion (160) assembled to the upper portion of the cylindrical portion (71). The upper cushion (160) may be assembled to the upper portion of the cylindrical portion (71) to cover the upper portion of the cylindrical portion (71). The upper cushion (160) may be formed of the same material as the second insulating material (140) of the insulator (100) as the lower cushion (150). That is, the upper cushion (160) may be formed of EPS insulating material, which is the same material as the lower cushion (150). The upper cushion (160) may include a second groove (161) to which a portion of the insulator (100) surrounding the outer circumference of the cylindrical portion (71) is assembled. (See FIG. 12)

[0085] The insulator (100) may include a first insulating material (110) surrounding the outer surface of the cylindrical portion (71). The insulator (100) may include a vacuum insulating material (130) arranged on the outer surface of the first insulating material (110). The insulator (100) may include a second insulating material (140) surrounding the outer surface of the vacuum insulating material (130). That is, the insulator (100) may be formed to have a triple insulation structure.

[0086] The first insulation material (110) may be provided to surround the outer circumference of the cylindrical portion (71). That is, the first insulation material (110) may form the first layer of the insulation material (100) surrounding the outer circumference of the cylindrical portion (71). The first insulation material (110) is an insulation material that primarily protects the cylindrical portion (71), and may protect the vacuum insulation material (130) from thermal shock due to temperature changes in the cylindrical portion (71). The first insulation material (110) may be formed of an EPP (Expanded Poly Propylene) insulation material.

[0087] The first insulation material (110) may be provided by being divided into a plurality of first segmented insulation materials (120). Each of the plurality of first segmented insulation materials (120) may be provided such that both ends are in contact with each other and surround the outer circumference of the cylindrical portion (71). A detailed description of the first insulation material (110) will be provided below.

[0088] The vacuum insulator (130) may be arranged to be secured to the outer surface of each of the plurality of first segmented insulators (120). That is, the vacuum insulator (130) may be arranged on the outer side of the first insulator (110) to form a second layer of the insulator (100) surrounding the outer surface of the cylindrical portion (71). A detailed description of the vacuum insulator (130) will be provided below.

[0089] The second insulation material (140) may be arranged to surround the outer surface of the vacuum insulation material (130). That is, the second insulation material (140) may be arranged on the outside of the vacuum insulation material (130) to form the outermost layer, which is the third layer of the insulation material (100) surrounding the outer surface of the cylindrical portion (71). The second insulation material (140) may protect the vacuum insulation material (130) from external physical impact. The second insulation material (140) may be formed of an EPS (Expanded Poly Styrene) insulation material.

[0090] The second insulation material (140) may be provided in multiple pieces. Although the drawing shows the second insulation material (140) as being provided as a pair, it is not limited thereto. The second insulation material (140) provided as a pair may be provided so that the ends on both sides are assembled to each other. The second insulation material (140) whose ends on both sides are assembled to each other may be assembled to the lower cushion (150) and the upper cushion (160). That is, the lower part of the second insulation material (140) whose ends on both sides are assembled to each other may be assembled to the lower cushion (150), and the upper part of the second insulation material (140) whose ends on both sides are assembled to each other may be assembled to the upper cushion (160). A detailed description of the second insulation material (140) will be provided below.

[0091] FIG. 7 is a drawing illustrating a state in which a vacuum insulator according to one embodiment is manufactured in a flat shape and then bent. FIG. 8 is a drawing illustrating a state in which a bent vacuum insulator according to one embodiment is seated on the outer surface of a first segmented insulator. FIG. 9 is a drawing illustrating a state in which a first segmented insulator having a vacuum insulator seated thereon according to one embodiment is assembled to a second segmented insulator. FIG. 10 is a drawing illustrating a state in which a pair of second segmented insulators, each assembled with a first segmented insulator having a vacuum insulator seated thereon according to one embodiment, is assembled to a lower cushion. FIG. 11 is a drawing illustrating a state in which an upper cushion according to one embodiment is assembled to an upper portion of a cylindrical portion. FIG. 12 is a cross-sectional view of a tank according to one embodiment.

[0092] As illustrated in Fig. 7, the vacuum insulator (130) may be manufactured in a flat shape. After the vacuum insulator (130) is manufactured in a flat shape, it may be bent so as to come into contact with and be seated on the outer surface of the first segmented insulator (120). The vacuum insulator (130) may include a plurality of bending grooves (131) to facilitate bending of the vacuum insulator (130). The plurality of bending grooves (131) may be formed on one surface of the vacuum insulator (130). The surface of the vacuum insulator (130) on which the plurality of bending grooves (131) are formed may be the surface that comes into contact with the outer surface of the first segmented insulator (120) when the vacuum insulator (130) is seated on the first segmented insulator (120).

[0093] As illustrated in FIGS. 8 and 9 , the bent vacuum insulation material (130) may be mounted on the outer surface of the first segmented insulation material (120). The first insulation material (110) may be divided into a plurality of first segmented insulation materials (120), and a vacuum insulation material (130) may be mounted on each of the plurality of first segmented insulation materials (120). In other words, the number of vacuum insulation materials (130) may also be provided in a plurality of pieces to correspond to the number of the plurality of first segmented insulation materials (120). (See FIG. 6 )

[0094] The first segmented insulation (120) may include assembly protrusions (121) provided at the top and bottom of the first segmented insulation (120). The assembly protrusions (121) may be assembled to the second insulation (140) so that the first segmented insulation (120) may be assembled to the second insulation (140).

[0095] The assembly protrusion (121) may include a first assembly protrusion (123) formed on the upper end of the first segmented insulation material (120). The first assembly protrusion (123) may be formed to protrude from the upper central portion of the first segmented insulation material (120). The first assembly protrusion (123) may be assembled by being fitted into the first assembly groove (145) of the second insulation material (140).

[0096] The assembly protrusion (121) may include a second assembly protrusion (125) formed at the bottom of the first segmented insulation material (120). The second assembly protrusion (125) may be formed to protrude from the center portion of the bottom of the first segmented insulation material (120). The second assembly protrusion (125) may be assembled by being fitted into the second assembly groove (142) of the second insulation material (140).

[0097] The first segmented insulation (120) may include contact portions (127) provided at both end sides so that the first segmented insulation (120) comes into contact with the second segmented insulation (140) when assembled thereto. Since the contact portions (127) provided at both end sides of the first segmented insulation (120) come into contact with each other, the first segmented insulation (120) divided into multiple pieces may be provided to surround the entire outer circumference of the cylindrical portion (71). (See Fig. 6)

[0098] The first segmented insulation (120) may include a mounting portion (129) on which the vacuum insulation (130) is mounted. The mounting portion (129) may be formed to protrude from both side ends of the first segmented insulation (120). The mounting portion (129) may be formed to protrude from both side ends of the first segmented insulation (120) toward the vacuum insulation (130) mounted on the first segmented insulation (120). When the vacuum insulation (130) is mounted on the mounting portion (129) of the first segmented insulation (120), the vacuum insulation (130) may come into contact with the outer peripheral surface of the first segmented insulation (120).

[0099] The second insulation material (140) may be provided as a pair. The second insulation material (140) may include a lower support part (141) that is provided to extend in the radial direction of the cylindrical portion (71) at the lower end of the second insulation material (140) and supports the lower end of the cylindrical portion (71). When the insulation material (100) surrounding the outer circumference of the cylindrical portion (71), i.e., the lower and upper parts of the assembled first insulation material (110), vacuum insulation material (130), and second insulation material (140) are assembled to the lower cushion (150) and upper cushion (160), respectively, the lower support part (141) may support the lower end of the cylindrical portion (71). (See FIG. 12)

[0100] An assembly groove into which the first segmented insulation material (120) is assembled may be formed in the lower support member (141). The assembly groove formed in the lower support member (141) may be a second assembly groove (142) into which the second assembly protrusion (125) of the first segmented insulation material (120) is fitted and assembled.

[0101] The lower support member (141) may include a lower rib (143) formed to protrude from the lower portion of the lower support member (141). The lower rib (143) may be assembled into the first groove (151) of the lower cushion (150) so that the lower portion of the insulation (100) surrounding the outer circumference of the cylindrical portion (71) may be assembled to the lower cushion (150). (See Fig. 12)

[0102] The second insulation material (140) may include an upper support part (144) that is provided to extend in the radial direction of the cylindrical portion (71) to the upper end of the second insulation material (140) and supports the upper end of the cylindrical portion (71). When the insulation material (100) surrounding the outer circumference of the cylindrical portion (71), i.e., the lower and upper parts of the assembled first insulation material (110), vacuum insulation material (130), and second insulation material (140) are assembled to the lower cushion (150) and upper cushion (160), respectively, the upper support part (144) may support the upper end of the cylindrical portion (71). (See FIG. 12)

[0103] An assembly groove into which the first segmented insulation material (120) is assembled may be formed in the upper support member (144). The assembly groove formed in the upper support member (144) may be a first assembly groove (145) into which the first assembly protrusion (123) of the first segmented insulation material (120) is fitted and assembled.

[0104] The upper support member (144) may include an upper rib (146) formed to protrude from the upper portion of the upper support member (144). The upper rib (146) may be assembled into the second groove (161) of the upper cushion (160) so that the upper portion of the insulation (100) surrounding the outer circumference of the cylindrical portion (71) may be assembled to the upper cushion (160). (See Fig. 12)

[0105] The second insulation material (140) may include a contact surface (147) provided so that a pair of second insulation materials (140) are arranged to surround the cylindrical portion (71) and come into contact with each other. The pair of second insulation materials (140) may be assembled while the contact surfaces (147) come into contact with each other. The contact surface (147) may include a pair of parallel surfaces (148) provided parallel to the contact surfaces of the contact portions (127) of the first segmented insulation material (120) at each end in the radial direction of the cylindrical portion (71), and an inclined surface (149) formed slanted between the pair of parallel surfaces (148). (See FIG. 6)

[0106] As illustrated in FIGS. 10 to 12, when a plurality of first segmented insulators (120) having vacuum insulators (130) installed thereon are assembled to a pair of second insulators (140) so as to be positioned on the inner surface of the pair of second insulators (140), the pair of second insulators (140) can be assembled to the lower cushion (150). Although the cylindrical portion (71) is omitted in the drawing, after the lower cushion (150) is assembled to the lower portion of the cylindrical portion (71), the pair of second insulators (140) can be assembled to the lower cushion (150) to surround the cylindrical portion (71). That is, the lower cushion (150) can be assembled to the lower portion of the cylindrical portion (71) before the insulator (100) is wrapped around the outer surface of the cylindrical portion (71).

[0107] After a pair of second insulation materials (140) are assembled to the lower cushion (150), an upper cushion (160) can be assembled to the upper portion of the cylindrical portion (71). When a pair of second insulation materials (140) are assembled to the lower cushion (150), the lower rib (143) of the second insulation materials (140) can be inserted into the first groove (151) of the lower cushion (150) and assembled. When the upper cushion (160) is assembled to the upper portion of the cylindrical portion (71), the upper rib (146) of the second insulation material (140) can be inserted into the second groove (161) of the upper cushion (160) and assembled. The upper cushion (160) can be assembled to the upper portion of the cylindrical portion (71) after the insulation material (100) is wrapped around the outer surface of the cylindrical portion (71).

[0108] As described above, since the vacuum insulation material (130) is assembled to be placed between the first insulation material (110) and the second insulation material (140), the vacuum insulation material (130) can be prevented from coming off, and the shape of the vacuum insulation material (130) can also be protected. Since the vacuum insulation material (130) is prevented from coming off and its shape is protected, the insulation performance of the vacuum insulation material (130) can be maximized.

[0109] FIG. 13 is a drawing illustrating an insert bracket being injection-molded within a pair of second insulating materials and an upper cushion according to one embodiment, and a fixing bracket being coupled to the insert bracket. FIG. 14 is a drawing illustrating an insert bracket being injection-molded within a pair of second insulating materials and a lower cushion according to one embodiment, and a fixing bracket being coupled to the insert bracket.

[0110] As illustrated in FIGS. 13 and 14, an insert bracket (80) may be injection-molded inside a pair of second insulating materials (140) and a lower cushion (150) and an upper cushion (160). A fixed bracket (90) may be coupled to the insert bracket (80).

[0111] The insert bracket (80) may include a pair of first insert brackets (81, 82), a pair of second insert brackets (83, 84), and a pair of third insert brackets (85, 86).

[0112] The fixed bracket (90) may include a first fixed bracket (91) coupled to a pair of first insert brackets (81, 82), a second fixed bracket (93) coupled to a pair of second insert brackets (83, 84), and a third fixed bracket (95) coupled to a pair of third insert brackets (85, 86).

[0113] The insert bracket (80) may include a pair of first insert brackets (81, 82) that are injection-molded into each of a pair of second insulating materials (140) that are assembled together. The pair of first insert brackets (81, 82) may be injection-molded into each of the contacting end portions of the pair of second insulating materials (140). That is, the first insert bracket (81) may be injection-molded into the contacting portion of one of the pair of second insulating materials (140), and the first insert bracket (82) may be injection-molded into the contacting portion of the other of the pair of second insulating materials (140). Accordingly, the first insert bracket (81) injection-molded inside one of the pair of second insulating materials (140) and the first insert bracket (82) injection-molded inside the other of the pair of second insulating materials (140) may be adjacent to each other. A first fixing bracket (91) may be coupled to the pair of first insert brackets (81, 82). The first fixing bracket (91) may be coupled to the pair of first insert brackets (81, 82) by a screw (S). When the first fixing bracket (91) is coupled to the pair of first insert brackets (81, 82), the pair of second insulating materials (140) may be in close contact with each other.

[0114] The insert bracket (80) may include a pair of second insert brackets (83, 84) that are injection-molded into the interior of a pair of second insulating materials (140) and a lower cushion (150). The pair of second insert brackets (83, 84) may be injection-molded into each portion where the pair of second insulating materials (140) and the lower cushion (150) come into contact. That is, the second insert bracket (83) may be injection-molded into the interior of the portion of the pair of second insulating materials (140) that comes into contact with the lower cushion (150), and the second insert bracket (84) may be injection-molded into the interior of the portion of the lower cushion (150) that comes into contact with the pair of second insulating materials (140). Accordingly, the second insert bracket (83) injection-molded inside the pair of second insulating materials (140) and the second insert bracket (84) injection-molded inside the lower cushion (150) may be adjacent to each other. A second fixing bracket (93) may be coupled to the pair of second insert brackets (83, 84). The second fixing bracket (93) may be coupled to the pair of second insert brackets (83, 84) by a screw (S). When the second fixing bracket (93) is coupled to the pair of second insert brackets (83, 84), the pair of second insulating materials (140) and the lower cushion (150) may be in close contact with each other.

[0115] The insert bracket (80) may include a pair of third insert brackets (85, 86) that are injection-molded into the interior of a pair of second insulating materials (140) and an upper cushion (160). The pair of third insert brackets (85, 86) may be injection-molded into each portion where the pair of second insulating materials (140) and the upper cushion (160) come into contact. That is, the third insert bracket (85) may be injection-molded into the interior of the portion of the pair of second insulating materials (140) that comes into contact with the upper cushion (160), and the third insert bracket (86) may be injection-molded into the interior of the portion of the upper cushion (160) that comes into contact with the pair of second insulating materials (140). Accordingly, the third insert bracket (85) injection-molded inside the pair of second insulating materials (140) and the third insert bracket (86) injection-molded inside the upper cushion (160) may be adjacent to each other. A third fixing bracket (95) may be coupled to the pair of third insert brackets (85, 86). The third fixing bracket (95) may be coupled to the pair of third insert brackets (85, 86) by a screw (S). When the third fixing bracket (95) is coupled to the pair of third insert brackets (85, 86), the pair of second insulating materials (140) and the upper cushion (160) may be in close contact with each other.

[0116] According to one embodiment of the disclosed invention, a tank includes a cylindrical portion (71) having a cylindrical shape and an insulator (100) provided to surround an outer circumference of the cylindrical portion and insulate the cylindrical portion. The insulator includes a first insulator (110) provided to surround an outer circumference of the cylindrical portion and divided into a plurality of first segmented insulators (120), a vacuum insulator (130) mounted on the outer circumference of each of the plurality of first segmented insulators, and a second insulator (140) provided in a plurality and arranged to surround the outer circumference of the vacuum insulator, the plurality of first segmented insulators on which the vacuum insulators are mounted being assembled so as to be positioned on the inner circumference of the second insulator.

[0117] The above vacuum insulation material is manufactured in a flat shape and can be bent so as to come into contact with and settle on the outer surface of the first segmented insulation material.

[0118] The above vacuum insulation material may include a plurality of bending grooves (131) formed on a surface that contacts the outer surface of the first segmented insulation material to allow the vacuum insulation material to bend.

[0119] The first split insulation material may include an assembly projection (121) provided at the top and bottom of the first split insulation material and assembled to the second insulation material, a contact portion (127) provided at the ends of both sides of the first split insulation material so that the first split insulation material comes into contact with each other when assembled to the second insulation material, and a mounting portion (129) on which the vacuum insulation material is mounted.

[0120] The above plurality of second insulating materials are provided as a pair, and the pair of second insulating materials may include a contact surface (147) provided at each end of both sides so that the pair of second insulating materials come into contact with each other when arranged to surround the cylindrical portion, and an assembly groove (145, 142) into which the assembly protrusion is fitted and assembled.

[0121] The above contact surface may include a pair of parallel surfaces (148) provided parallel to the contact surface of the contact portion at each end in the radial direction of the cylindrical portion, and an inclined surface (149) formed at an angle between the pair of parallel surfaces.

[0122] The above insulation may further include a lower cushion (150) assembled to the lower portion of the cylindrical portion and an upper cushion (160) assembled to the upper portion of the cylindrical portion.

[0123] The lower cushion may be assembled to the cylindrical portion before the insulation is wrapped around the outer surface of the cylindrical portion, and the upper cushion may be assembled to the cylindrical portion after the insulation is wrapped around the outer surface of the cylindrical portion.

[0124] The above pair of second insulating materials may include an upper support portion (144) formed to extend in the radial direction of the cylindrical portion at the upper end of the pair of second insulating materials to support the upper end of the cylindrical portion and a first assembly groove (145) into which the first segmented insulating material is assembled, a lower support portion (141) formed to extend in the radial direction of the cylindrical portion at the lower end of the pair of second insulating materials to support the lower end of the cylindrical portion and a second assembly groove (142) formed to which the first segmented insulating material is assembled, a lower rib (143) formed to protrude from the lower end of the lower support portion and an upper rib (146) formed to protrude from the upper end of the upper support portion.

[0125] The lower cushion may include a first groove (151) into which the lower rib is inserted so that the cylindrical portion is assembled to the lower cushion.

[0126] The upper cushion may include a second groove (161) into which the upper rib is inserted so that the upper cushion can be assembled to the cylindrical portion.

[0127] The above plurality of second insulating materials are provided as a pair, and the lower cushion and the upper cushion can be formed of the same material as the pair of second insulating materials.

[0128] An insert bracket (80) can be injection-molded inside the above pair of second insulation materials, the lower cushion, and the upper cushion.

[0129] The above insert bracket may include a pair of first insert brackets (81, 82) each injection-molded at the end portions of the contacting sides of the pair of second insulating materials, a pair of second insert brackets (83, 84) each injection-molded at the portions where the pair of second insulating materials and the lower cushion are in contact, and a pair of third insert brackets (85, 86) each injection-molded at the portions where the pair of second insulating materials and the upper cushion are in contact.

[0130] It may include a fixing bracket (90) coupled to the insert bracket, and the fixing bracket may include a first fixing bracket (91) coupled to the pair of first insert brackets so that the pair of second insulating materials are in close contact with each other, a second fixing bracket (93) coupled to the pair of second insert brackets so that the pair of second insulating materials and the lower cushion are in close contact with each other, and a third fixing bracket (95) coupled to the pair of third insert brackets so that the pair of second insulating materials and the upper cushion are in close contact with each other.

[0131] According to one embodiment of the disclosed invention, a tank includes a cylindrical portion (71) formed in a cylindrical shape and an insulator (100) provided to surround an outer circumferential surface of the cylindrical portion. The insulator includes a lower cushion (150) assembled to a lower portion of the cylindrical portion, an upper cushion (160) assembled to an upper portion of the cylindrical portion, a first insulator (110) provided to surround an outer circumferential surface of the cylindrical portion and divided into a plurality of first segmented insulators (120), a vacuum insulator (130) mounted so as to be in contact with the outer circumferential surfaces of each of the plurality of first segmented insulators, and a second insulator arranged to surround the outer circumferential surfaces of the vacuum insulators, wherein the plurality of first segmented insulators on which the vacuum insulators are mounted are assembled so as to be positioned on the inner circumferential surfaces of the second insulators, and a second insulator (140) assembled to the lower cushion and the upper cushion.

[0132] The above vacuum insulator is manufactured in a flat shape and may include a plurality of bending grooves (131) that allow the vacuum insulator to be bent and come into contact with the outer surface of the first segmented insulator.

[0133] The first split insulation material may include an assembly projection (121) that is assembled to the second insulation material, a contact portion (127) that is provided at both end sides of the first split insulation material and that contacts each other when the first split insulation material is assembled to the second insulation material, and a mounting portion (129) on which the vacuum insulation material is mounted.

[0134] The above assembly protrusion may include a first assembly protrusion (123) formed to protrude from the upper central portion of the first split insulation material and a second assembly protrusion (125) formed to protrude from the lower central portion of the first split insulation material.

[0135] The above second insulating material may include a first assembly groove (145) into which the first assembly protrusion is inserted and assembled, and a second assembly groove (142) into which the second assembly protrusion is inserted and assembled.

[0136] According to the present disclosure, since the vacuum insulation is assembled so as to be placed between the first insulation and the second insulation, detachment of the vacuum insulation can be prevented.

[0137] Additionally, since the vacuum insulation is assembled so as to be placed between the first insulation and the second insulation, the shape of the vacuum insulation can be protected.

[0138] In addition, the insulation performance of the vacuum insulation can be maximized by preventing the detachment of the vacuum insulation and protecting its shape.

[0139] In addition, the insulating performance of the vacuum insulation can be maximized by bending the vacuum insulation so that it adheres closely to the outer surface of the first insulation.

[0140] Additionally, a tight seal can be formed between a pair of second insulation materials, between a pair of second insulation materials and a lower cover, and between a pair of second insulation materials and an upper cover.

[0141] 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 can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0142] In the above, the tank and the heat pump including the same have been described with reference to the attached drawings, with a focus on specific shapes and directions. However, various modifications and changes are possible by those skilled in the art, and such modifications and changes should be interpreted as being included in the scope of the disclosed invention.

Claims

1. A cylindrical portion having a cylindrical shape; and Including an insulating material that surrounds the outer surface of the cylindrical portion and insulates the cylindrical portion; The above insulation is, A first insulating material that surrounds the outer surface of the cylindrical portion and is divided into a plurality of first segmented insulating materials; A vacuum insulation material mounted on the outer surface of each of the plurality of first-part insulation materials; and A second insulating material that is arranged in a plurality of pieces to surround the outer surface of the vacuum insulating material, wherein the second insulating material is assembled so that the plurality of first segmented insulating materials on which the vacuum insulating material is installed are positioned on the inner surface of the second insulating material; Tank containing.

2. In paragraph 1, A tank in which the above vacuum insulation material is manufactured in a flat shape and is bent so as to be in contact with and seated on the outer surface of the first segmented insulation material.

3. In paragraph 2, A tank in which the vacuum insulation material includes a plurality of bending grooves formed on a surface that contacts the outer surface of the first segmented insulation material to allow the vacuum insulation material to bend.

4. In paragraph 1, The above first-part insulation material is, An assembly projection provided at the top and bottom of the first split insulation material and assembled to the second insulation material; Contact portions provided at both end sides of the first split insulation so that the first split insulation is in contact with the second insulation when assembled; and A tank including a mounting portion on which the vacuum insulation material is mounted.

5. In paragraph 4, The above plurality of second insulating materials are provided in pairs, The above pair of second insulation materials, Contact surfaces provided at both side ends so as to contact each other when the pair of second insulating materials are arranged to surround the cylindrical portion; and A tank including an assembly groove into which the above assembly protrusion is inserted and assembled.

6. In paragraph 5, The above contact surface is, A pair of parallel surfaces provided at each end of the cylindrical portion in the radial direction parallel to the contact surface of the contact portion; and A tank including an inclined surface formed at an angle between a pair of parallel surfaces.

7. In paragraph 1, The above insulation is, A lower cushion assembled to the lower part of the above cylindrical portion; and A tank further comprising an upper cushion assembled to the upper portion of the cylindrical portion.

8. In paragraph 7, The above lower cushion is assembled to the cylindrical portion before the insulation is wrapped around the outer surface of the cylindrical portion, The upper cushion is a tank assembled to the cylindrical portion after the insulation is wrapped around the outer surface of the cylindrical portion.

9. In paragraph 8, The above pair of second insulation materials, An upper support portion formed to extend in the radial direction of the cylindrical portion at the upper end of the pair of second insulating materials, to support the upper end of the cylindrical portion, and to have a first assembly groove formed into which the first segmented insulating material is assembled; A lower support portion formed to support the lower end of the cylindrical portion by extending in the radial direction of the lower end of the second insulating material, and having a second assembly groove formed therein into which the first split insulating material is assembled; A lower rib formed to protrude from the lower portion of the lower support; and A tank including an upper rib formed to protrude from the upper portion of the upper support.

10. In paragraph 9, A tank in which the lower cushion includes a first groove into which the lower rib is inserted so that the cylindrical portion is assembled to the lower cushion.

11. In paragraph 9, A tank in which the upper cushion includes a second groove into which the upper rib is inserted so that the upper cushion can be assembled to the cylindrical portion.

12. In paragraph 7, A tank in which the plurality of second insulation materials are provided as a pair, and the lower cushion and the upper cushion are formed of the same material as the pair of second insulation materials.

13. In paragraph 7, A tank in which an insert bracket is injection-molded inside the pair of second insulation materials, the lower cushion, and the upper cushion.

14. In paragraph 13, The above insert bracket is, A pair of first insert brackets each injection-molded at the contacting end portions of the pair of second insulating materials; A pair of second insert brackets each injection-molded at a portion where the pair of second insulation materials and the lower cushion come into contact; and A tank including a pair of third insert brackets, each injection-molded at a portion where the pair of second insulation materials and the upper cushion come into contact.

15. In paragraph 14, Including a fixed bracket coupled to the above insert bracket, The above fixed bracket, A first fixed bracket coupled to the pair of first insert brackets to ensure a close contact between the pair of second insulating materials; A second fixed bracket coupled to the second pair of insert brackets to ensure a close contact between the second pair of insulation materials and the lower cushion; and A tank including a third fixing bracket coupled to the pair of third insert brackets to ensure a close contact between the pair of second insulation materials and the upper cushion.

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