Cold water generating apparatus and water purifier comprising same

Abstract

The present invention relates to a cold water generating apparatus for generating, storing, and supplying cold water, and a water purifier including same. The present invention provides a cold water generating apparatus and a water purifier including same, the cold water generating apparatus comprising: a cooling unit for cooling a fluid; a cold water tank for storing the fluid cooled by the cooling unit, the cold water tank including a tank water inlet pipe, through which the fluid is introduced, and a tank water outlet pipe, through which the fluid is discharged; and a flow path unit connecting the cooling unit and the cold water tank and providing a flow path for the fluid, wherein the cold water tank includes a first spiral flow path, for guiding the fluid in a first direction with respect to the longitudinal direction of the cold water tank, and a second spiral flow path, for guiding the fluid in a second direction different from the first direction with respect to the longitudinal direction of the cold water tank, between the tank water inlet pipe and the tank water outlet pipe.

Description

Cold water generating device and water purifier including the same

[0001] The present invention relates to water treatment technology. More specifically, the present invention relates to a cold water generation device that generates, stores, and supplies cold water, and a water purifier including the same.

[0002] As interest in drinking water grows, people are increasingly purchasing bottled water or using purified tap water. Water dispensers, which supply bottled water, and water purifiers, which supply purified tap water, are increasingly equipped with hot and cold water functions, allowing users to choose between cold and hot water depending on their needs, enhancing user convenience.

[0003] For hot water supply, electric heaters can be used to quickly heat water. However, for cold water supply, cooling the water takes a relatively long time compared to hot water supply. Therefore, a method of cooling the water, storing it in a cold water tank, and then supplying the cold water stored in the cold water tank is utilized. Furthermore, a cooling system comprising a compressor, condenser, and evaporator can be used to cool the water. However, more recently, compact cooling systems have been developed using thermoelectric cooling elements.

[0004] However, when supplying chilled water stored in a cold water tank, continuously cooling the water using thermoelectric elements poses the problem of high power consumption. Therefore, there is a need to manage the temperature of the chilled water stored in the cold water tank and efficiently recool the chilled water once its temperature has risen.

[0005] Meanwhile, when supplying cold water stored in a cold water tank directly to the outside, the cold water tank must be filled with uncooled water to supply the cold water stored in the tank to the outside. This presents a problem: the cold water in the cold water tank is not discharged first, and the uncooled water is mixed with the cold water before being discharged, reducing the efficiency of the cold water supply.

[0006] Related prior art literature includes Republic of Korea Publication No. 10-2024-0003641 (published on January 9, 2024).

[0007] The present invention aims to solve the above-mentioned needs and problems by providing a cold water generating device and a water purifier including the same, which can effectively discharge cold water stored in a cold water tank when supplying cold water stored in the cold water tank to the outside and efficiently manage the cold water temperature of the cold water tank.

[0008] In addition, the present invention aims to provide a cold water generating device capable of cooling and maintaining the temperature of cold water stored in a cold water tank below a predetermined temperature, and a water purifier including the same.

[0009] In addition, the present invention aims to provide a cold water generating device configured to discharge cold water stored in a cold water tank before purified water flowing into the cold water tank, and a water purifier including the same.

[0010] In addition, the present invention aims to provide a cold water generating device that improves the cold water supply efficiency by improving the flow path within the cold water tank, and a water purifier including the same.

[0011] In addition, the present invention aims to provide a cold water generating device with an improved configuration of a cooling module for generating cold water, and a water purifier including the same. In addition, the present invention aims to provide a cold water generating device with improved efficiency of cold water storage by separating a cold water tank for storing cold water and a cooling unit for cooling water to generate cold water, and a water purifier including the same.

[0012] The present invention provides a cold water generating device comprising: a cooling unit for cooling a fluid; a cold water tank including a tank inlet pipe into which the fluid flows in and a tank outlet pipe through which the fluid flows out, the cold water tank storing the fluid cooled in the cooling unit; and a flow path portion connecting the cooling unit and the cold water tank to provide a movement path for the fluid; wherein the cold water tank includes a first flow path between the tank inlet pipe and the tank outlet pipe for guiding the fluid in a first direction with respect to the longitudinal direction of the cold water tank, and a second flow path at least a portion of which guides the fluid in a second direction different from the first direction with respect to the longitudinal direction of the cold water tank, and at least a portion of which is formed in a spiral shape.

[0013] In one embodiment, the cold water tank includes a tank housing defining an internal storage space, and an inner screw portion including a hollow inner cylinder and a spiral inner screw coupled to an outer circumferential surface of the inner cylinder, wherein the first flow path is formed by the hollow portion of the inner cylinder, and the second flow path includes a first spiral flow path formed by the spiral inner screw portion.

[0014] In one embodiment, the outer end of the inner screw may be in contact with the inner surface of the tank housing, and the first spiral flow path may be formed by the outer surface of the inner cylinder, the inner screw, and the inner surface of the tank housing.

[0015] In addition, the inner cylinder may form an inlet passage, the tank inlet pipe may be coupled to the inner cylinder to communicate with the inlet passage of the inner cylinder, and the inner cylinder may be formed with an inner cylinder outlet means that communicates the inside and the outside of the inner cylinder to transmit the fluid to the first spiral flow path.

[0016] In one embodiment, the cross-section of the first spiral flow path or the cross-section of the second spiral flow path may have an aspect ratio of width to height of 0.5 to 2.0.

[0017] In one embodiment, the cold water tank may further include an outer screw portion provided on the outside of the inner screw portion, and the second flow path may further include a second spiral flow path formed by the outer screw portion.

[0018] In one embodiment, the outer screw portion includes an outer cylinder accommodating the inner screw therein, and a spiral outer screw provided on an outer circumferential surface of the outer cylinder, an outer end of the outer screw contacting an inner circumferential surface of the tank housing, and the second spiral flow path may be formed by the outer circumferential surface of the outer cylinder, the outer screw, and the inner circumferential surface of the tank housing. In addition, in the first spiral flow path and the second spiral flow path, the flow directions of the fluid may be different from each other.

[0019] Additionally, the outer cylinder may be formed with an outer cylinder outlet that communicates the inside and outside of the outer cylinder to transfer the fluid to the second spiral flow path.

[0020] Additionally, the outer screw portion may further include an outer screw cover that closes one side of the outer cylinder.

[0021] In one embodiment, a cover member coupled to the open surface of the tank housing may further be included.

[0022] In one embodiment, the tank inlet pipe may be provided through the bottom of the cold water tank, and the tank outlet pipe may be provided through the cover member.

[0023] In one embodiment, the cross-section of the second spiral flow path may have an aspect ratio of width to height of 0.5 to 2.0.

[0024] In one embodiment, the cooling unit includes a heat dissipation unit including a cooling block having a cooling path formed therein, a thermoelectric element provided on one side of the cooling block, and a heat dissipation plate that contacts the thermoelectric element on the opposite side of the cooling block so as to release heat generated from the thermoelectric element.

[0025] In one embodiment, the flow path includes a first circulation path connecting a cooling block outlet of a cooling block provided in the cooling section and the tank inlet pipe of the cold water tank, and a second circulation path connecting the tank outlet pipe of the cold water tank and the cooling block inlet pipe of the cooling block.

[0026] In addition, the flow path may include an inlet flow path for introducing the fluid into the cold water generating device, and an outlet flow path for providing the fluid stored in the cold water tank to the outside, and the inlet flow path and the first circulation flow path may be connected through a first distribution section, and the outlet flow path and the second circulation flow path may be connected through a second distribution section.

[0027] In addition, the present invention provides a water purifier that filters water to supply purified water, characterized in that it includes the above-described cold water generating device that receives the purified water, cools it, and supplies it.

[0028] According to the present invention, the cold water supply efficiency of the cold water tank is improved by allowing the cold water stored in the cold water tank to be discharged before the water newly introduced into the cold water tank due to the flow path structure of the cold water tank.

[0029] In addition, according to the present invention, the temperature of cold water stored in a cold water tank is sensed, and when the temperature of the cold water rises above a predetermined temperature, the cold water is circulated to a cooling unit for re-cooling, thereby efficiently maintaining and managing the temperature of the cold water tank.

[0030] In addition, according to the present invention, the efficiency of cold water supply can be improved by allowing cold water stored in a cold water tank to be discharged before purified water flowing into the cold water tank.

[0031] In addition, according to the present invention, a spiral flow path is provided in a cold water tank, and the cross-section of the flow passage through which the fluid passes is improved, thereby improving the cold water discharge efficiency.

[0032] In addition, according to the present invention, a compact and miniaturized cooling unit can be configured by including a cooling block having a cooling and heat dissipation configuration using a thermoelectric element and an improved heat transfer area.

[0033] In addition, according to the present invention, the temperature maintenance effect of the cold water stored in the cold water tank can be improved by separately configuring the cold water tank for storing cold water and the cooling unit for cooling water to generate cold water.

[0034] FIG. 1 is a front perspective view of a cold water generating device according to one embodiment of the present invention.

[0035] Figure 2 is a rear perspective view of a cold water generating device according to one embodiment of the present invention.

[0036] Figure 3 is a perspective view of a cold water generating device according to one embodiment of the present invention with the frame portion omitted.

[0037] Figure 4 is a perspective view of a cooling unit of a cold water generating device according to one embodiment of the present invention.

[0038] Figure 5 is an exploded perspective view of a cooling unit of a cold water generating device according to one embodiment of the present invention.

[0039] Figure 6 is a cross-sectional view taken along the AA' direction in Figure 4.

[0040] Figure 7 is a perspective view of a cold water tank of a cold water generating device according to one embodiment of the present invention.

[0041] Figure 8 is an exploded perspective view of a cold water tank of a cold water generating device according to one embodiment of the present invention.

[0042] Figure 9 is a plan view of a cold water tank of a cold water generating device according to one embodiment of the present invention.

[0043] FIG. 10 is a cross-sectional view (BB' direction of FIG. 7) of a cold water tank of a cold water generating device according to one embodiment of the present invention.

[0044] FIG. 11 is a cross-sectional view (CC' direction of FIG. 7) of a cold water tank of a cold water generating device according to one embodiment of the present invention.

[0045] Fig. 12 is a perspective view of the inner screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention.

[0046] Figure 13 is an exploded perspective view of the inner screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention.

[0047] Fig. 14 is a cross-sectional view (direction D-D' of Fig. 12) of the inner screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention.

[0048] FIG. 15 is a perspective view of the outer screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention.

[0049] FIG. 16 is a rear perspective view of the outer screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention.

[0050] Fig. 17 is a perspective view of a cold water tank of a cold water generating device according to one embodiment of the present invention, with an inner screw portion coupled to the inside of an outer screw portion.

[0051] FIG. 18 is a cross-sectional view (EE' direction of FIG. 17) of a cold water tank of a cold water generating device according to one embodiment of the present invention, in which an inner screw part is coupled to the inside of an outer screw part.

[0052] FIG. 19 is a drawing showing the connection configuration of a cold water tank and a flow path in a cold water generating device according to one embodiment of the present invention.

[0053] FIG. 20 is a drawing showing a fluid circulation configuration during cold water circulation in a cold water generating device according to one embodiment of the present invention.

[0054] FIG. 21 is a drawing showing a fluid circulation configuration when supplying cold water in a cold water generating device according to one embodiment of the present invention.

[0055] FIG. 22 is an exploded perspective view showing another embodiment of a cold water tank in a cold water generating device according to one embodiment of the present invention.

[0056] FIG. 23 is a cross-sectional view showing another embodiment of a cold water tank in a cold water generating device according to one embodiment of the present invention.

[0057] FIG. 24 is an exploded perspective view showing another embodiment of a cold water tank in a cold water generating device according to one embodiment of the present invention.

[0058] FIG. 25 is a cross-sectional view showing another embodiment of a cold water tank in a cold water generating device according to one embodiment of the present invention.

[0059] <Explanation of symbols>

[0060] 1: Cold water generator 10: Cold water tank

[0061] 12: Tank housing 20: Inner screw section

[0062] 22: Inner cylinder 24: Inner screw

[0063] 30: Outer screw part 32: Outer cylinder

[0064] 34: Outer screw 50: Cover member

[0065] 52: Tank outlet pipe 60: Temperature sensor

[0066] 100: Cooling section 110: Heat dissipation section

[0067] 120: Thermoelectric element 130: Cooling block

[0068] 140: Cooling block cover 200: Euro section

[0069] 210: 1st Euro section 220: Circulation pump

[0070] 230: 2nd Euro section 300: Frame section

[0071] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. First, when assigning reference numerals to components in each drawing, it should be noted that identical components are assigned the same numerals as much as possible even if they are shown in different drawings. Furthermore, in describing the present invention, if a detailed description of a related known structure or function is judged to obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, although preferred embodiments of the present invention will be described below, it should be understood that the technical idea of ​​the present invention is not limited thereto and can be modified and implemented in various ways by those skilled in the art.

[0072] Fig. 1 is a front perspective view of a cold water generating device according to one embodiment of the present invention, and Fig. 2 is a rear perspective view of a cold water generating device according to one embodiment of the present invention. In addition, Fig. 3 is a perspective view of a cold water generating device according to one embodiment of the present invention with the frame portion omitted.

[0073] A cold water generating device (1) according to one embodiment of the present invention receives a fluid from the outside, cools it, and provides the cooled fluid to the outside. In addition, the cold water generating device (1) according to the present invention can cool the fluid by circulating it so that the fluid is cooled to a predetermined temperature or lower.

[0074] In one embodiment, the fluid may be a liquid. In addition, when the cold water generating device (1) according to the present invention is installed and used in a water purifier (not shown) or a raw water supply device (dispenser), the fluid may be purified water treated by a water purification device provided in the water purifier or raw water stored in a raw water tank.

[0075] A cold water generation device (1) includes a cooling unit (100) that cools a fluid, a flow path (200) that is connected to the cooling unit (100) to transfer or circulate the fluid to the cooling unit (100) or to provide the fluid cooled in the cooling unit (100) to the outside, and a cold water tank (10) that stores the fluid cooled in the cooling unit (100). In addition, the cold water generation device (1) may further include a frame (300) on which the cooling unit (100), the flow path (200), and the cold water tank (10) are mounted.

[0076] The cooling unit (100) cools fluid supplied from the outside through the flow path (200) or fluid stored in the cold water tank (10) recycled by the flow path (200). In one embodiment, the cooling unit (100) may be configured to include a thermoelectric element.

[0077] The euro section (200) provides a passage for supplying fluid from the outside, circulating the fluid between the cooling section (100) and the cold water tank (10), and supplying cold water stored in the cold water tank (10) to the outside.

[0078] FIG. 4 is a perspective view of a cooling unit of a cold water generating device according to one embodiment of the present invention, FIG. 5 is an exploded perspective view of a cooling unit of a cold water generating device according to one embodiment of the present invention, and FIG. 6 is a cross-sectional view taken along the line AA' in FIG. 4.

[0079] Referring to FIGS. 4 to 6, the cooling unit (100) of the cold water generation device (1) may include a heat dissipation unit (110), a thermoelectric element (120), and a cooling block (130). In addition, the cooling unit (100) may further include a cooling block cover (140) coupled to the cooling block (130) so as to cover the thermoelectric element (120) and the heat dissipation plate (116) of the heat dissipation unit (110) on the upper side of the cooling block (130).

[0080] The cooling unit (100) of the cold water generating device (1) according to the present invention cools the fluid supplied to the cooling block (130) by the thermoelectric element (120), and the heat generated in the thermoelectric element (120) can be released through the heat dissipation unit (110). The thermoelectric element (120) is an element that converts thermal energy and electrical energy to each other using the Peltier effect. In the present invention, the thermoelectric element (120) can be provided in a plate shape, and the cooling surface of the thermoelectric element (120) is arranged to face the fluid side, and the heating surface of the thermoelectric element (120) is arranged to face the heat dissipation unit (110).

[0081] In one embodiment, the heat dissipation unit (110) includes a heat dissipation fin (112), a heat dissipation pipe (114), and a heat dissipation plate (116). The heat dissipation plate (116) is disposed on a heat-generating surface of a thermoelectric element (120), and the heat dissipation pipe (114) forms a heat transfer path between the heat dissipation plate (116) and the heat dissipation fin (112). The heat dissipation pipe (114) may include a heat dissipation fin coupling portion (114a) and a heat dissipation plate coupling portion (114b). The heat dissipation fin coupling portion (114a) may be coupled to the heat dissipation fin (112) in a form that penetrates a plurality of heat dissipation fins (112). The heat dissipation plate coupling portion (114b) may be coupled to an upper surface of the heat dissipation plate (116). In one embodiment, a concave groove may be provided on the heat dissipation plate (116) to correspond to the shape of the outer surface of the heat dissipation plate joint portion (114b) so as to increase the heat transfer area with the heat dissipation plate joint portion (114b). In addition, a plurality of heat dissipation pipes (114) may be provided.

[0082] In one embodiment, the heat dissipation pipe (114) may be configured as a heat pipe. However, in the practice of the present invention, rather than the heat of the heat dissipation plate (116) being transferred to the heat dissipation fin (112) through the heat dissipation pipe (114), it may also be possible for the heat dissipation fin (112) to be directly coupled to the heat dissipation plate (116).

[0083] The cooling block (130) includes a cooling block body (132) including a cooling channel space (134) in which a cooling channel is formed, a cooling block inlet (137) through which fluid flows into the cooling block body (132), and a cooling block outlet (138) through which fluid flows out of the cooling block body (132). In one embodiment, the cooling channel space (134) of the cooling block body (132) may be provided with a plurality of partition walls (136) forming a fluid flow passage, and the partition walls (136) may be arranged so that the fluid can pass through the cooling channel space (134) in a zigzag manner. In one embodiment, a closing plate (122) arranged on the cooling surface of the thermoelectric element (120) may be coupled to an open portion on the upper side of the cooling channel space (134) so ​​as to seal the cooling channel space (134). A sealing member such as an O-ring may be provided at the contact surface of the closing plate (122) and the cooling block (130) to prevent leakage of fluid at the contact surface. Meanwhile, the cooling block (130) is exemplified as a square block having a predetermined thickness, and the closing plate (122) is exemplified as being coupled to the open surface of the cooling block (130) to close the open surface, but the shape and structure of the cooling block (130) are not limited thereto. As long as it has a cooling block inlet (137) and a cooling block outlet (138), a fluid flow passage is formed inside, and a thermoelectric element (120) is attached to one side to cool the fluid, modifications of the cooling block (130) in various shapes and structures may be implemented.

[0084] Fluid introduced through the cooling block inlet (137) is cooled by the thermoelectric element (120) while passing through the cooling passage space (134) and then discharged through the cooling block outlet (138). Heat generated on the heating surface of the thermoelectric element (120) is transferred to the heat dissipation fin (112) through the heat dissipation plate (116) and the heat dissipation pipe (114) and is then discharged to the outside.

[0085] The cooling block cover (140) can be coupled to the cooling block body (132) at the upper portion of the heat dissipation plate (116) to which the heat dissipation plate coupling portion (114b) of the heat dissipation pipe (114) is coupled, so that the thermoelectric element (120) and the closing plate (122) can be coupled to the upper portion of the cooling block body (132). In addition, in the practice of the present invention, it is also possible to further provide a heat dissipation structure, such as a heat dissipation fin, on the upper surface of the cooling block cover (140) to enable heat dissipation through the cooling block cover (140).

[0086] Fig. 7 is a perspective view of a cold water tank of a cold water generating device according to one embodiment of the present invention, Fig. 8 is an exploded perspective view of a cold water tank of a cold water generating device according to one embodiment of the present invention, and Fig. 9 is a plan view of a cold water tank of a cold water generating device according to one embodiment of the present invention. In addition, Fig. 10 is a cross-sectional view (BB' direction of Fig. 7) of a cold water tank of a cold water generating device according to one embodiment of the present invention, and Fig. 11 is a cross-sectional view (CC' direction of Fig. 7) of a cold water tank of a cold water generating device according to one embodiment of the present invention.

[0087] A cold water tank (10) according to one embodiment of the present invention includes a tank housing (12), an outer screw portion (30) provided in an inner space of the tank housing (12), an inner screw portion (20) provided inside the outer screw portion (30), and a cover member (50) coupled to an opening surface of the tank housing (12). In addition, the cold water tank (10) may further include a temperature sensor (60) for measuring the temperature of the internal fluid.

[0088] In one embodiment, the tank housing (12) is configured as a cylindrical shape with one side open, and a cover member (50) is coupled to the open surface of the tank housing (10) to accommodate a fluid.

[0089] The tank housing (12) may be constructed of an insulating material or an insulating structure to minimize cooling loss of the fluid contained within the tank housing (12). In one embodiment, as illustrated in FIG. 10, the tank housing (12) may be constructed of a double structure including a housing outer wall (12a) and a housing inner wall (12b), and the housing outer wall (12a) and the housing inner wall (12b) may be vacuum-filled or filled with an insulating material to provide insulating properties. The tank housing (12) may be constructed of a plastic material or a stainless steel material.

[0090] The cold water tank (10) includes a tank inlet pipe (16) through which fluid is supplied into the interior of the tank housing (12), and a tank outlet pipe (52) through which fluid stored in the tank housing (12) is discharged to the outside. In one embodiment, the tank inlet pipe (16) is provided in a form penetrating the bottom surface of the tank housing (12), and the tank outlet pipe (52) is provided penetrating the cover member (50). Meanwhile, if it is necessary to completely discharge the fluid stored in the cold water tank (10), a drain pipe (18) that enables the discharge of the fluid may be further included. In one embodiment, the drain pipe (18) is provided penetrating the bottom surface of the tank housing (12), and is connected to a drain valve (not shown) so as to drain the fluid stored in the tank housing (12) when the drain valve is opened.

[0091] The cover member (50) is coupled to the open surface of the tank housing (12), and a cover member fixing portion (14) is provided on the upper outer peripheral surface of the tank housing (12), and a tank fixing end (57) is provided on the outer peripheral end of the cover member (50), so that the tank fixing end (57) and the cover member fixing portion (14) can be fixed using a coupling screw.

[0092] In one embodiment, the central portion of the cover member (50) is formed with an upper opening (56) that is formed in a vertically penetrating manner, and a tank cover portion (54) is formed on the outside of the upper opening (56). Through the upper opening (56), as described below, the upper end of the outer screw portion (30) is exposed, and the tank cover portion (54) seals the open surface between the outer screw portion (30) and the tank housing (12).

[0093] The temperature sensor (60) includes a tank insertion portion (62) inserted into the internal space of the cold water tank (10) and a temperature sensor cable (64) for transmitting a sensed signal to the outside. In one embodiment, a temperature sensor fixing plate (66) for fixing the temperature sensor (60) to the cold water tank (10) may be further provided, and the temperature sensor fixing plate (66) may be fixed to the top of the cover member (50) or the outer screw portion (30).

[0094] Fig. 12 is a perspective view of the inner screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention, Fig. 13 is an exploded perspective view of the inner screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention, and Fig. 14 is a cross-sectional view (in the D-D' direction of Fig. 12) of the inner screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention.

[0095] Referring to FIGS. 10 and 11 and FIGS. 12 to 14, the inner screw portion (20) is provided in the inner space of the outer cylinder (32) of the outer screw portion (30), and the inner screw portion (20) includes a cylindrical inner cylinder (22) and an inner screw (24) coupled to the outer wall surface of the inner cylinder (22). In one embodiment, a temperature sensor insertion hole (25) into which a tank insertion portion (62) of a temperature sensor (60) is inserted may be formed in the inner screw (24) at the top. In one embodiment, the inner screw portion (20) and the outer screw portion (30) may be made of a plastic material, but are not limited thereto.

[0096] The inner cylinder (22) is formed in a hollow shape, and the internal space of the inner cylinder (22) forms an inlet passage (21). A tank inlet pipe (16) is coupled to one end of the inner cylinder (22) so as to communicate with the inlet passage (21). A tank inlet pipe mounting fitting (28) may be provided to couple the tank inlet pipe (16) to one end of the inner cylinder (22). The outer surface of the tank inlet pipe (16) may be coupled to the inner surface of the tank inlet pipe mounting fitting (28), and the outer surface of the tank inlet pipe mounting fitting (28) may be coupled to the inner surface of the inner cylinder (22). In one embodiment, a sealing member (not shown) may be provided on the coupling surface of the tank inlet pipe mounting fitting (28) and the tank inlet pipe (16), and on the coupling surface of the tank inlet pipe mounting fitting (28) and the inner cylinder (22). In order to couple the tank inlet pipe mounting fitting (28) and the inner cylinder (22), a fitting coupling portion (26) is provided at one end of the inner cylinder (22), and a fixing groove (27) may be formed in the fitting coupling portion (26) to which a fixing projection (29) provided on the outer surface of the tank inlet pipe mounting fitting (28) is coupled. The inner diameter of the fitting coupling portion (26) may be formed to be larger than the inner diameter of the inner cylinder (22).

[0097] An inner cylinder outlet (23) is formed at an end of the inner cylinder (22) opposite to one end of the inner cylinder (22) to which the tank inlet pipe (16) is coupled. In one embodiment, the inner cylinder outlet (23) may be provided in a form in which one end of the inner cylinder (22) is cut off or in a form that penetrates the inner and outer peripheral surfaces of the inner cylinder (22). By the configuration of the inner cylinder (22) and the tank inlet pipe (16), the fluid supplied through the tank inlet pipe (16) rises upward through the inlet passage (21) of the inner cylinder (22) and flows to the upper end of the inner screw (24) through the inner cylinder outlet (23).

[0098] The inner screw (24) can be configured by forming a plate of a predetermined thickness in a spiral shape. The inner screw (24) is spirally connected to the outer surface of the inner cylinder (22), and the outer end of the inner screw (24) is in contact with the inner surface of the outer cylinder (32) of the outer screw portion (30). Accordingly, the outer surface of the inner cylinder (22), the inner surface of the outer cylinder (32), and the inner screw (24) form a fluid flow passage having an approximately rectangular cross-section. Referring to Fig. 14, the fluid supplied through the tank inlet pipe (16) passes through the inlet passage (21) and then flows toward the outer surface of the inner cylinder (22) through the inner cylinder outlet means (23), and flows along the fluid flow passage formed by the spiral inner screw (24).

[0099] Fig. 15 is a perspective view of the outer screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention, and Fig. 16 is a rear perspective view of the outer screw portion of the cold water tank of the cold water generating device according to one embodiment of the present invention. Fig. 17 is a perspective view of the cold water tank of the cold water generating device according to one embodiment of the present invention, in which the inner screw portion is coupled to the inside of the outer screw portion, and Fig. 18 is a cross-sectional view (EE' direction of Fig. 17) of the cold water tank of the cold water generating device according to one embodiment of the present invention, in which the inner screw portion is coupled to the inside of the outer screw portion.

[0100] The outer screw portion (30) is accommodated inside the tank housing (12). The outer screw portion (30) includes a cylindrical outer cylinder (32) and an outer screw (34) coupled to the outer circumference of the outer cylinder (32) and in contact with the inner circumference of the tank housing (12). In addition, an outer screw cover (36) is provided at the upper end of the outer cylinder (32) to close the upper end of the outer cylinder (32).

[0101] The outer cylinder (32) is formed in a hollow shape, and its internal space constitutes an inner screw receiving portion (31). The inner screw portion (20) is inserted into the inner screw receiving portion (31) of the outer cylinder (32).

[0102] The outer screw (34) can be formed by forming a plate of a predetermined thickness in a spiral shape. The outer screw (34) is spirally connected to the outer surface of the outer cylinder (32), and the outer end of the outer screw (34) is in contact with the inner surface of the tank housing (12). Accordingly, the outer surface of the outer cylinder (32), the inner surface of the tank housing (12), and the outer screw (34) form a fluid flow passage having a substantially rectangular cross-section.

[0103] In one embodiment, the outer screw cover (36) is provided with an air discharge pipe (38) that extends through the upper and lower portions. The air discharge pipe (38) is connected to an air discharge valve (not shown) so as to discharge internal air when the cold water tank (10) is filled with fluid. In one embodiment, the air discharge pipe (38) is formed in the cover member (50), and it may also be possible for the air discharge pipe (38) to be provided so as to communicate the space formed between the outer cylinder (32) and the tank housing (12) with the outer side of the cover member (50).

[0104] In addition, the outer screw cover (36) is provided with a temperature sensor mounting hole (40) so that the tank insertion portion (62) of the temperature sensor (60) can be inserted through the temperature sensor mounting hole (40). In one embodiment, the outer screw cover (36) is provided with a cover member fixing hole (42), so that the cover member (50) can be fixed to the outer screw cover (36) side by engaging a coupling screw to the cover member fixing hole (42) through the outer screw portion fixing end (58) of the cover member (50).

[0105] Referring to Fig. 16, an outer cylinder outlet (33) is formed at the lower end of the outer screw (32), connecting the inside and outside of the outer screw (32). The outer cylinder outlet (33) may be provided in a form in which one end of the outer cylinder (32) is cut off, or in a form that penetrates the inner and outer surfaces of the outer cylinder (32).

[0106] Referring to FIGS. 17 and 18, the inner screw portion (20) is shown coupled to the inside of the outer cylinder (32) of the outer screw portion (30). The fluid supplied through the tank inlet pipe (16) passes through the inside of the inner cylinder (22) and then flows toward the outer surface of the inner cylinder (22) through the inner cylinder outlet means (23), and flows along the fluid flow passage formed by the spiral inner screw (24), the outer surface of the inner cylinder (22), and the inner surface of the outer cylinder (32). Thereafter, the fluid that has flowed toward the outer surface of the outer cylinder (32) through the outer cylinder outlet means (33) formed at the lower end of the outer cylinder (32) flows upward along the fluid flow passage formed by the spiral outer screw (34), the outer surface of the outer cylinder (32), and the inner surface of the tank housing (12). Thereafter, the fluid is discharged to the outside of the cold water tank (10) through the tank outlet pipe (52). In the present invention, it can be understood that the inlet passage (21) formed by the inner cylinder (22) forms a first flow path through which the fluid flows into the cold water tank (10), and a second flow path is formed by the inner screw (24) of the inner screw portion (20) and the outer screw (34) of the outer screw portion (30). Specifically, the second flow path may include a first spiral flow path formed by the inner screw portion (24) and a second spiral flow path formed by the outer screw portion (34).

[0107] Referring again to FIG. 10, a cross-section of a first fluid flow passage (AA) formed by the inner cylinder (22) of the inner screw portion (20), the inner screw (24) and the inner surface of the outer cylinder (32), and a second fluid flow passage (BB) formed by the outer cylinder (32) of the outer screw portion (30), the outer screw (34) and the inner surface of the tank housing (12) is shown.

[0108] In the cold water tank (10) presented in the present invention, a fluid flow passage having a substantially rectangular cross-section and a sufficiently extended length is formed by the inner screw (24) of the inner screw portion (20) and the outer screw (34) of the outer screw portion (30). Accordingly, when the fluid stored in the cold water tank (10) is discharged to the outside, the fluid stored and cooled in the cold water tank (10) can be effectively discharged, and new fluid flowing into the cold water tank (10) can be prevented from being discharged before the fluid already stored.

[0109] The cross sections of the first fluid flow passage (AA) and the second fluid flow passage (BB) may have an approximately rectangular shape. The first fluid flow passage (AA) may have a predetermined width (a1) and height (a2), and the second fluid flow passage (BB) may have a predetermined width (b1) and height (b2).

[0110] Taking the first fluid flow passage (AA) as an example, the fluid passing through the first fluid flow passage (AA) may have the greatest velocity at the center of the first fluid flow passage (AA) and may have a velocity that decreases toward the side, and in particular, the velocity may be even smaller at the corners. In order to discharge the fluid stored inside the cold water tank (10) to the outside of the cold water tank (10) through the tank outlet pipe (52), the fluid must enter the tank inlet pipe (16) and push the fluid inside the cold water tank (10) toward the tank outlet pipe (52). In this case, it is preferable that the fluid stored inside the cold water tank (10) be discharged first through the tank outlet pipe (52).

[0111] However, as the low-temperature fluid stored in the cold water tank (10) is discharged, the high-temperature fluid that flows into the tank inlet pipe (16) may gradually mix with the fluid stored in the cold water tank (10) and be discharged through the tank outlet pipe (52). Accordingly, the temperature of the fluid discharged from the cold water tank (10) may gradually increase. That is, the cold water discharge efficiency of the cold water tank (10) may gradually decrease. For example, in the prior art disclosed in Patent Publication No. 10-2024-0003641 of the present invention, the fluid flow path is formed only by dividing the upper and lower parts by a partition in the receiving space of the case member, so when supplying purified water to the cold water tank and discharging the cold water stored in the cold water tank, a problem may occur in which newly introduced purified water is mixed when the cold water is discharged. In this regard, in the present invention, the shape of the first fluid flow passage (AA) is made approximately rectangular, and the width (a1) and height (a2) are made approximately the same, so that the mixing ratio of the fluid discharged from the cold water tank (10) and the fluid newly introduced into the tank inlet pipe (16) can be reduced.

[0112] In one embodiment, the aspect ratio (a1 / a2) of the width (a1) and the height (a2) of the first fluid flow passage (AA) may be 0.5 to 2.0, 0.75 to 1.33, preferably 0.8 to 1.25, and more preferably 0.85 to 1.18. Similarly, the aspect ratio (b1 / b2) of the width (b1) and the height (b2) of the second fluid flow passage (BB) may be 0.5 to 2.0, 0.75 to 1.33, preferably 0.8 to 1.25, and more preferably 0.85 to 1.18. When the aspect ratio is less than 0.5 or more than 2.0, the mixing ratio of the fluid newly introduced into the tank inlet pipe (16) with the fluid stored in the cold water tank (10) may increase, thereby deteriorating the cold water discharge efficiency. In the present invention, by setting the aspect ratio of the first fluid flow passage (AA) and the second fluid flow passage (BB) as described above, when discharging the cooled fluid stored in the cold water tank (10), the mixing ratio of the newly introduced fluid can be kept low.

[0113] FIG. 19 is a drawing showing the connection configuration of a cold water tank and a flow path in a cold water generating device according to one embodiment of the present invention.

[0114] The flow path (200) includes a first flow path (210) on the side equipped with an inlet flow path (212) through which fluid is introduced, and a second flow path (230) on the side equipped with an outlet flow path (232) through which fluid is discharged. In one embodiment, the inlet flow path (212) is connected to an inlet-side valve (not shown) so that when the inlet-side valve is opened, fluid can be supplied through the inlet flow path (212). In addition, the outlet flow path (232) is connected to an outlet-side valve (not shown) so that when the outlet-side valve is opened, fluid can be discharged through the outlet flow path (232).

[0115] The first flow path (210) includes an inlet flow path (212), a first distribution section (214) connected to the inlet flow path (212), an inlet-side tank connection flow path (218) connected to the tank inlet pipe (16) side, a tank inlet flow path (216) connecting the first distribution section (214) and the inlet-side tank connection flow path (218), and a circulation pump (220) provided between the cooling block outlet (138) of the cooling block (130) and the first distribution section (214). The circulation pump (220) is connected to the cooling block outlet (138) through the cooling block outlet flow path (222), and the circulation pump (220) can be connected to the first distribution section (214) through the pump flow path (224).

[0116] The second flow path (230) includes an outlet flow path (232), a second distribution part (234) connected to the outlet flow path (232), an outlet-side tank connection flow path (238) connected to the tank outlet pipe (52) side, a tank outlet flow path (236) connecting the outlet-side tank connection flow path (238) and the second distribution part (234), and a cooling block inlet flow path (240) provided between the cooling block inlet part (137) of the cooling block (130) and the second distribution part (234).

[0117] The first distribution unit (214) and the second distribution unit (234) may be configured as a 3-way valve.

[0118] FIG. 20 is a drawing showing a fluid circulation configuration during cold water circulation in a cold water generating device according to one embodiment of the present invention.

[0119] When the inlet valve is opened, the fluid is supplied to the cold water generator (1) through the inlet passage (212) of the first passage section (210). The fluid supplied through the inlet passage (212) is delivered to the tank inlet passage (216) through the first distribution section (214) and then delivered to the tank inlet pipe (16) through the inlet-side tank connection passage (218).

[0120] The fluid that flows into the cold water tank (10) through the tank inlet pipe (16) flows through the cold water tank (10) and is then discharged through the tank outlet pipe (52), and is then transferred to the cooling block inlet pipe (240) through the tank outlet passage (236) and the second distribution section (234) and flows into the cooling block inlet section (137).

[0121] The fluid introduced into the cooling block inlet (137) is cooled in the cooling block (130), then discharged to the cooling block outlet (138) and delivered to the circulation pump (220).

[0122] In the process of filling the cold water tank (10) with fluid, the internal air of the cold water tank (10) can be discharged through the air discharge pipe (38). In addition, when the cold water tank (10), the cooling block (130), and the circulation path connecting the cold water tank (10) and the cooling block (130) are filled with fluid, the inlet-side valve of the inlet path (212) can be closed to block additional inflow of fluid.

[0123] In order for the fluid stored in the cold water tank (10) to be cooled to a target temperature, repeated cooling in the cooling block (130) may be required. To this end, the fluid may be repeatedly circulated between the cold water tank (10) and the cooling block (130) by the circulation pump (220). As the fluid is circulated by the circulation pump (220) so that the temperature of the fluid sensed by the temperature sensor (60) becomes lower than the target temperature, the fluid is cooled in the cooling block (130).

[0124] The cooling block outlet passage (222), the circulation pump (220), the first distribution unit (214), the tank inlet passage (216), and the inlet-side tank connection passage (218) constitute a first circulation passage connecting the cooling block outlet (138) of the cooling block (130) and the tank inlet pipe (16) of the cold water tank (10). In addition, the outlet-side tank connection passage (238), the tank outlet passage (236), the second distribution unit (234), and the cooling block inlet passage (240) constitute a second circulation passage connecting the tank outlet pipe (52) of the cold water tank (10) and the cooling block inlet (137) of the cooling block (130).

[0125] The fluid stored in the cold water tank (10) is circulated through the cold water tank (10) and the cooling block (130) via the first circulation path and the second circulation path by the circulation pump (220) so that the temperature of the fluid becomes lower than the target temperature. If the fluid temperature of the cold water tank (10) becomes lower than the target temperature, the operation of the circulation pump (220) may be stopped. However, if the fluid temperature of the cold water tank (10) becomes higher than the target temperature due to the inflow of external heat, the fluid is circulated through the cold water tank (10) and the cooling block (130) again via the first circulation path and the second circulation path by the operation of the cooling unit (100) and the operation of the circulation pump (220).

[0126] FIG. 21 is a drawing showing a fluid circulation configuration when supplying cold water in a cold water generating device according to one embodiment of the present invention.

[0127] When the outlet valve connected to the outlet passage (232) is opened, the fluid stored in the cold water tank (10) is discharged through the outlet passage (232). The fluid stored in the cold water tank (10) is delivered to the outlet passage (232) through the tank outlet pipe (52), the outlet side tank connection passage (238), the tank outlet passage (236), and the second distribution unit (234).

[0128] Meanwhile, in order to discharge the fluid stored in the cold water tank (10), the inlet valve is opened so that new fluid flows into the inlet path (212) and flows into the tank inlet pipe (16) through the tank inlet path (216) and the inlet side tank connection path (218).

[0129] FIG. 22 is an exploded perspective view illustrating another embodiment of a cold water tank in a cold water generating device according to one embodiment of the present invention, and FIG. 23 is a cross-sectional view illustrating another embodiment of a cold water tank in a cold water generating device according to one embodiment of the present invention.

[0130] The cold water tank of the cold water generating device according to the present invention is characterized by improving the cold water discharge efficiency by forming the cross-section of the flow passage through which the fluid passes into a substantially rectangular shape. Accordingly, another embodiment of the cold water tank having a spiral flow path configuration that shares the basic characteristics of the cold water tank (10) illustrated in FIGS. 7 to 19 may be proposed.

[0131] Referring to FIGS. 22 and 23, a cold water tank (400) according to another embodiment of the present invention includes a tank housing (410) and an inner screw portion (420) provided inside the tank housing (410). The tank housing (410) is provided with a tank inlet pipe (414) and a tank outlet pipe (416).

[0132] The cold water tank (400) illustrated in FIGS. 22 and 23 differs from the embodiment of FIG. 7 and others in that it does not have an outer screw portion (30) but only has an inner screw portion (420).

[0133] In addition, a cover member (430) having a cover surface (432) is coupled to one open surface of the tank housing (410) to close one open surface of the tank housing (410). A temperature sensor mounting hole (434) and an air discharge pipe (436) may be provided in the cover member (430). A tank insertion part (442) of a temperature sensor (440) including a tank insertion part (442) and a temperature sensor cable (444) may be mounted in the temperature sensor mounting hole (434).

[0134] The inner screw section (420) includes a cylindrical inner cylinder (422) and an inner screw (424) coupled to the outer peripheral wall surface of the inner cylinder (422).

[0135] The inner cylinder (422) is formed in a hollow shape, and the internal space of the inner cylinder (422) forms an inlet passage (421). A tank inlet pipe (414) is connected to one end of the inner cylinder (422) so as to be in communication with the inlet passage (421). A tank inlet pipe mounting fitting (426) may be provided to connect the tank inlet pipe (414) to one end of the inner cylinder (422).

[0136] An inner cylinder outlet (423) is formed at an end of the inner cylinder (422) opposite to one end of the inner cylinder (422) to which the tank inlet pipe (414) is coupled. In one embodiment, the inner cylinder outlet (423) may be provided in a form in which one end of the inner cylinder (422) is cut off or in a form that penetrates the inner and outer peripheral surfaces of the inner cylinder (422).

[0137] The inner screw (424) is helically coupled to the outer surface of the inner cylinder (422), and the outer end of the inner screw (424) is in contact with the inner surface of the tank housing (410). Accordingly, the outer surface of the inner cylinder (422), the inner surface of the tank housing (410), and the inner screw (424) form a fluid flow passage having an approximately rectangular cross-section. Referring to FIG. 23, the fluid supplied through the tank inlet pipe (414) passes through the inlet passage (421) formed by the internal space of the inner cylinder (422), then flows toward the outer surface of the inner cylinder (422) through the inner cylinder outlet means (423), and flows along the fluid flow passage formed by the outer surface of the inner cylinder (422), the inner surface of the tank housing (410), and the inner screw (424) to the lower portion of the tank housing (410).

[0138] A tank outlet pipe (416) is provided on the bottom surface of the tank housing (410) and penetrates the bottom surface of the tank housing (410), and the fluid that has flowed to the lower part of the tank housing (410) is discharged to the outside of the cold water tank (400) through the tank outlet pipe (416).

[0139] FIG. 24 is an exploded perspective view illustrating another embodiment of a cold water tank in a cold water generating device according to one embodiment of the present invention, and FIG. 25 is a cross-sectional view illustrating another embodiment of a cold water tank in a cold water generating device according to one embodiment of the present invention.

[0140] Referring to FIGS. 24 and 25, a cold water tank (500) according to another embodiment of the present invention includes a tank housing (510) and an inner screw portion (520), and a tank inlet pipe (514) is formed on one side of the tank housing (510) and a tank outlet pipe (534) is formed on the other side of the tank housing (510).

[0141] The inner screw section (520) includes an inner cylinder (522) and an inner screw (524). A difference from the previously described embodiment is that no fluid flows into the internal space of the inner cylinder (522).

[0142] The fluid is directly introduced into the lower side of the inner screw (524) from one side of the tank housing (510), flows along the fluid flow passage formed by the outer surface of the inner cylinder (522), the inner surface of the tank housing (510), and the inner screw (524), and is then discharged through the tank outlet pipe (534) provided in the cover member (530) of the tank housing (510). A tank insertion part (542) of a temperature sensor (540) including a tank insertion part (542) and a temperature sensor cable (544) can be inserted into the temperature sensor mounting hole (532) of the cover member (530).

[0143] Meanwhile, in the above embodiments, the tank inlet pipe and the tank outlet pipe are exemplarily provided at the bottom or top of the cold water tank, but the arrangement of the tank inlet pipe and the tank outlet pipe is not limited thereto. In each embodiment, the positions of the tank inlet pipe and the tank outlet pipe may be changed and selected as needed without being restricted to the bottom or top position of the cold water tank, and in some cases, they may be provided at the side of the cold water tank.

[0144] The above description is merely an illustrative description of the technical idea of ​​the present invention, and those skilled in the art will appreciate that various modifications, changes, and substitutions may be made without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of ​​the present invention, but rather to explain it, and the scope of the technical idea of ​​the present invention is not limited by these embodiments and the accompanying drawings. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. A cooling unit that cools the fluid; A cold water tank including a tank inlet pipe into which the fluid flows in and a tank outlet pipe through which the fluid flows out, and storing the fluid cooled in the cooling unit; and It includes a flow path that connects the cooling unit and the cold water tank to provide a movement path for the fluid; The above cold water tank, A first flow path between the tank inlet pipe and the tank outlet pipe, guiding the fluid in a first direction with respect to the longitudinal direction of the cold water tank; A cold water generating device characterized in that at least a portion of the cold water tank comprises a second flow path that guides the fluid in a second direction different from the first direction with respect to the length of the cold water tank, and at least a portion of the second flow path is formed in a spiral shape.

2. In paragraph 1, The above cold water tank, a tank housing forming an accommodation space inside, and It comprises an inner screw section including a hollow inner cylinder and a spiral inner screw coupled to the outer surface of the inner cylinder, The above first flow path is formed by the hollow of the above inner cylinder, A cold water generating device characterized in that the second flow path includes a first spiral flow path formed by the inner screw portion of the spiral.

3. In paragraph 2, The outer end of the inner screw is in contact with the inner surface of the tank housing, A cold water generating device, characterized in that the first spiral flow path is formed by the outer surface of the inner cylinder, the inner screw, and the inner surface of the tank housing.

4. In paragraph 3, The inner cylinder forms an inlet passage, and the tank inlet pipe is connected to the inner cylinder so as to be connected to the inlet passage of the inner cylinder. A cold water generating device characterized in that an inner cylinder outlet means is formed in the inner cylinder to connect the inside and outside of the inner cylinder so as to transfer the fluid to the first spiral flow path.

5. A cold water generating device, characterized in that in the second paragraph, the cross-section of the first spiral flow path or the cross-section of the second spiral flow path has an aspect ratio of width to height of 0.5 to 2.

0.

6. In paragraph 2, The above cold water tank further includes an outer screw portion provided on the outside of the inner screw portion, A cold water generating device wherein the second flow path further includes a second spiral flow path formed by the outer screw portion.

7. In paragraph 6, The above outer screw part, It includes an outer cylinder that accommodates the inner screw therein, and a spiral outer screw provided on the outer surface of the outer cylinder, The outer end of the outer screw is in contact with the inner surface of the tank housing, A cold water generating device, characterized in that the second spiral flow path is formed by the outer circumferential surface of the outer cylinder, the outer screw, and the inner circumferential surface of the tank housing.

8. In paragraph 7, A cold water generating device characterized in that the flow directions of the fluid in the first spiral flow path and the second spiral flow path are different from each other.

9. In paragraph 7, A cold water generating device characterized in that the outer cylinder has an outer cylinder outlet means formed therein, which connects the inside and the outside of the outer cylinder to transmit the fluid to the second spiral flow path.

10. In paragraph 7, A cold water generating device characterized in that the outer screw section further includes an outer screw cover that closes one side of the outer cylinder.

11. In paragraph 10, A cold water generating device characterized in that it further includes a cover member coupled to the open surface of the tank housing.

12. In paragraph 11, A cold water generating device characterized in that the tank inlet pipe is provided through the bottom of the cold water tank, and the tank outlet pipe is provided through the cover member.

13. In paragraph 6, A cold water generating device, characterized in that the cross-section of the second spiral flow path has an aspect ratio of width to height of 0.5 to 2.

0.

14. In paragraph 1, The above cooling unit, Cooling block with formed cooling channel, A thermoelectric element provided on one side of the above cooling block, and A cold water generating device characterized by including a heat dissipation unit including a heat dissipation plate that contacts the thermoelectric element on the opposite side of the cooling block so as to release heat generated from the thermoelectric element.

15. In paragraph 1, The above Euro part, A cold water generating device characterized by comprising a first circulation path connecting the cooling block outlet of the cooling block provided in the cooling unit and the tank inlet pipe of the cold water tank, and a second circulation path connecting the tank outlet pipe of the cold water tank and the cooling block inlet pipe of the cooling block.

16. In paragraph 15, The above-mentioned flow path includes an inlet flow path for introducing the fluid into the cold water generating device, and an outlet flow path for providing the fluid stored in the cold water tank to the outside. A cold water generating device characterized in that the inflow path and the first circulation path are connected through a first distribution unit, and the outlet path and the second circulation path are connected through a second distribution unit.

17. In a water purifier that filters water and supplies purified water, A water purifier characterized by including a cold water generating device according to claim 1 that receives the purified water, cools it, and supplies it.

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