Cold water tank for straight water purifier

Abstract

Provided is a cold water tank for a direct water purifier. The cold water tank can include a tank housing formed with an internal space, a longitudinal height of which is at least 4 times or more of a maximum width in a transverse direction, and which is configured in a longitudinal direction such that a fluid flows in from an upper side and is discharged to a lower side; an evaporator disposed in the internal space to guide movement of a refrigerant for cooling the fluid; a connection portion disposed at a lower portion of the tank housing to convert a direction of the fluid moving to the lower side to the upper side; a cold water pipe having a lower end connected to the connection portion and extending to form a shape to guide the cooled fluid to an upper side of the internal space, and being disposed in the internal space in the longitudinal direction; and a cold water discharge outlet formed at an upper end of the tank housing and connected to an upper end of the cold water pipe to discharge the fluid to an outside of the tank housing.

Description

Technical Field

[0001] This invention relates to a cold water tank for a direct-flow water purifier, specifically a cold water tank for a direct-flow water purifier that reduces the manufacturing cost of the cold water tank used for extracting cold water, improves the performance of cold water extraction, and facilitates the installation or disconnection of cold water pipes. Background Technology

[0002] Typically, a cold water tank is a device provided to users to cool water supplied from a tap, mineral water container, or purified water storage unit. While primarily used for producing low-temperature drinking water for water purifiers, carbonated water heaters, and hot / cold water heaters, it can be used in various other applications requiring cold water generation.

[0003] COWAY Corporation's Korean Patent Publication No. 10-2020-0008263 discloses a conventional cold water tank. This cold water tank includes a tank body and a cooling unit that cools water stored inside the tank body to make it cold water. In this case, purified water flowing in through an inlet formed at the top of the tank body is discharged as cold water through an outlet formed at the bottom of the tank body. During the process of the discharged cold water being discharged from the water purifier and delivered to the user, it receives heat from the outside, causing the temperature of the cold water to drop, ultimately resulting in a decrease in the cold water extraction efficiency perceived by the user.

[0004] A cooling device for a water purifier disclosed in Korean Patent Publication No. 10-1658496 of HYEWON Electric Co., Ltd. includes: a cold water tank; and a cooling pipe that contacts the outer peripheral surface of the cold water tank to cool the water stored in the cold water tank. Because this cooling pipe is positioned on the outer peripheral surface of the cold water tank, the cool air from the cooling pipe is not only transferred to the cold water tank but also discharged to the outside, thus resulting in reduced cooling efficiency.

[0005] The cold water tank for a water purifier disclosed in Korean Patent Publication No. 10-2053784 of WONBONG Co., Ltd. includes: a tank body; a cooling coil surrounding the outer periphery of the tank body; and insulation material surrounding the cooling coil. The cooling coil does not discharge to the outside due to the insulation material, but the cooling coil does not directly contact the water stored in the tank body. Due to the density difference caused by cooling, there is no structure for controlling the flow of water as it moves towards the lower part of the tank body, resulting in reduced cooling efficiency. Furthermore, after the cooled water moves towards the lower part of the tank body, it is discharged while moving upwards through the outlet pipe, but there is a problem that the outlet pipe is difficult to separate from the tank body. Summary of the Invention

[0006] Technical problems to be solved

[0007] In order to solve the problems described above, the purpose of a cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier that provides an upwardly extending cold water pipe disposed inside the tank housing, and minimizes heat loss generated from the cold water pipe when cold water is discharged.

[0008] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier in which a first joint portion for longitudinally inserting a cold water pipe is formed at the bottom of the tank shell, making it easy to replace the cold water pipe and to easily install the cold water pipe inside the tank shell.

[0009] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier having a first fixing member for fixing a cold water pipe inserted into the first joint, which allows for easy insertion of the cold water pipe and secure fixation of the cold water pipe to the first joint.

[0010] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier whose connecting part is formed by a structure protruding into the lower external space of the tank shell, and whose tank shell is easily injection molded.

[0011] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a partition wall that further divides the internal space of the tank shell laterally, thereby slowing down the movement speed of purified water moving from the inside of the tank shell to the lower side and improving the cooling efficiency of the cold water tank for a direct-flow water purifier.

[0012] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier that optimizes the area of ​​the through holes in the partition wall that allows purified water to flow through the internal space of the outer shell of the tank, and adjusts the amount of purified water flowing through the partition wall to improve cooling efficiency.

[0013] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier with a protrusion formed on the outer side of the partition wall, which allows the partition wall to be fixed inside the tank shell.

[0014] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier that is formed by longitudinally extending a refrigerant pipe and having an upper bend and a lower bend in the refrigerant pipe, thereby increasing the contact area between the refrigerant pipe and the purified water and improving the cooling efficiency.

[0015] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier with a first through hole formed in the partition wall, through which the lower bend of the refrigerant pipe can pass, so that the partition wall can be easily installed in the refrigerant pipe.

[0016] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier in which the upper end of the cold water pipe is laterally bent and inserted into a second joint formed on the side of the tank shell, so that the upper end of the cold water pipe can be easily disposed inside the tank shell.

[0017] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a second through hole with a slot-shaped partition wall through which a cold water pipe can pass, and to provide a space that can elastically deform to the opposite side of the second joint even when the cold water pipe passes through the second through hole, so that the cold water tank for a direct-flow water purifier can be easily provided or separated from the upper end of the cold water pipe relative to the second joint.

[0018] Furthermore, the purpose of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention is to provide a cold water tank for a direct-flow water purifier with a temperature sensor disposed on the lower side to measure the temperature of the fluid and control the temperature of the refrigerant.

[0019] Furthermore, according to another embodiment of the present invention, the purpose of the cold water tank for a direct-flow water purifier is to provide a cold water through hole formed on the side of the first joint of the tank shell, which allows purified water moving downward to move through the cold water through hole to the cold water pipe, eliminating the need for a connecting pipe protruding downward, and making it easy to install inside the water purifier.

[0020] The problems of this invention are not limited to those mentioned above. Those skilled in the art to which this invention pertains will clearly understand other problems not mentioned from the following description.

[0021] means for solving problems

[0022] To address the aforementioned problems, a cold water tank for a direct-flow water purifier according to an embodiment of the present invention may include: a tank shell having an internal space, the longitudinal height being at least four times the maximum transverse width, and the tank being longitudinally configured such that fluid flows in from the top and discharges to the bottom; an evaporator disposed in the internal space to guide the movement of refrigerant used to cool the fluid; a connecting portion disposed at the lower part of the tank shell to change the direction of the fluid moving downward to the upper part; a cold water pipe having its lower end connected to the connecting portion and extending in a manner to guide the cooled fluid upward toward the upper part of the internal space, and being longitudinally disposed in the internal space; and a cold water outlet formed at the upper end of the tank shell, connected to the upper end of the cold water pipe to discharge the fluid to the outside of the tank shell.

[0023] At this time, the connecting part may include a cylindrical first joint that protrudes upward from the bottom of the outer casing to facilitate the longitudinal insertion of the lower end of the cold water pipe.

[0024] At this time, the present invention may further include a first fixing component, which is disposed between the outer peripheral surface of the cold water pipe and the inner peripheral surface of the first joint, so as to fix the lower end of the cold water pipe when it is inserted into the first joint.

[0025] At this time, the connection portion may include: a hollow first outlet protruding downward from the bottom of the outer casing to facilitate the discharge of the fluid from the internal space to the outside; a first inlet protruding downward from the bottom of the outer casing to facilitate the flow of the fluid discharged through the first outlet into the internal space through the first connection portion, the first inlet being spaced apart from the first outlet; and a connecting pipe, one end of which is connected to the first outlet and the other end of which is connected to the first inlet to guide the fluid discharged towards the first outlet through the first inlet.

[0026] At this time, the connecting part may also include at least one cold water through hole through the lower end side of the first joint, and the cold water pipe may be combined with the first joint with the lower end of the cold water pipe separated from the bottom of the outer shell of the box, so that the lower end of the cold water pipe is positioned on the upper side of the cold water through hole.

[0027] At this point, the present invention may include at least one partition wall that laterally divides the aforementioned internal space to form a plurality of through holes.

[0028] At this point, the ratio of the total area of ​​the aforementioned partition wall to the area of ​​the aforementioned multiple through holes can be 3 to 14:1.

[0029] At this time, the outer side of the partition wall may be in a shape corresponding to the inner side of the outer shell of the box. The partition wall may include at least one protrusion that protrudes from the outer side of the partition wall and connects with the inner side of the outer shell of the box. The outer side of the partition wall may be spaced apart from the inner side of the outer shell of the box.

[0030] At this time, the evaporator may include a refrigerant pipe with both ends penetrating the top of the outer casing and the central portion disposed in the internal space. The refrigerant pipe may include a lower bend that extends longitudinally and changes the direction of movement of the refrigerant from the lower side to the upper side. The plurality of through holes may include a plurality of first through holes through which the refrigerant pipe passes.

[0031] At this time, the evaporator may include a refrigerant pipe that penetrates the top of the outer casing at both ends and is disposed in the internal space in the center. The refrigerant pipe may include N upper bends that extend longitudinally and change the movement direction of the refrigerant from the upper side to the lower side, and (N+1) lower bends that change the movement direction of the refrigerant from the lower side to the upper side. The plurality of through holes may include a plurality of first through holes through which the refrigerant pipe passes (N is a natural number).

[0032] At this time, the first through hole can be extended to facilitate the passage of the lower bent portion.

[0033] At this time, the upper end of the cold water pipe can be bent laterally to form a second joint that protrudes from the inner space side of the cold water outlet formed on the upper end side of the outer shell of the box, so as to allow the upper end of the cold water pipe to be inserted. The plurality of through holes can include the second through hole through which the cold water pipe passes.

[0034] At this time, the upper end of the cold water pipe can extend in the opposite direction to the bending direction so that the cold water pipe can be elastically deformed when it passes through the second through hole.

[0035] At this time, the second through hole may include a pair of fixing protrusions that protrude from the two inner sides of the second through hole in a direction perpendicular to the extension direction of the second through hole, so as to fix the cold water pipe inserted through the second through hole to one side of the extension direction of the second through hole.

[0036] At this time, the present invention may also include a first temperature sensor, which is disposed on the outer shell of the box so as to separate the first sensing part above the evaporator disposed on the side of the cold water outlet and measure the temperature of the fluid.

[0037] At this time, the first sensing unit can be arranged at a distance of 20 mm or more and 30 mm or less from the top of the evaporator disposed on the side of the cold water outlet.

[0038] At this time, the present invention may also include a second temperature sensor, which is disposed on the outer casing of the casing so as to separate the second sensing part from the lower part of the evaporator disposed on the bottom side of the outer casing of the casing, and measure the temperature of the fluid.

[0039] At this time, the second sensing unit can be arranged at a distance of 20 mm or more and 30 mm or less from the lower part of the evaporator disposed on the bottom side of the outer casing.

[0040] Invention Effects

[0041] According to an embodiment of the present invention, a cold water pipe extending upward in the cold water tank of a direct-flow water purifier is disposed inside the tank shell, so that heat loss generated from the cold water pipe can be minimized when cold water is discharged.

[0042] Furthermore, according to an embodiment of the present invention, the first joint portion in the cold water tank of the direct water purifier, into which a cold water pipe can be inserted longitudinally, is formed at the bottom of the tank shell, making it easy to replace the cold water pipe and to easily install the cold water pipe inside the tank shell.

[0043] Furthermore, according to an embodiment of the present invention, the cold water tank for a direct-flow water purifier has a first fixing member for fixing a cold water pipe inserted into the first joint, which allows the cold water pipe to be easily inserted and firmly fixed to the first joint.

[0044] Furthermore, according to an embodiment of the present invention, the connecting portion of the cold water tank for a direct-flow water purifier is formed by a structure protruding into the lower external space of the tank shell, which facilitates injection molding of the tank shell.

[0045] Furthermore, by adding a partition wall that horizontally divides the internal space of the tank shell in the cold water tank of the direct water purifier according to an embodiment of the present invention, the movement speed of purified water moving from the inside of the tank shell to the lower side can be slowed down, thereby improving cooling efficiency.

[0046] Furthermore, according to an embodiment of the present invention, the area of ​​the through hole in the partition wall that horizontally divides the internal space of the tank shell of the direct water purifier is optimized in the cold water tank, so that purified water can pass through the partition wall and the cooling efficiency can be improved by adjusting the amount of purified water passing through the partition wall.

[0047] Furthermore, according to an embodiment of the present invention, a protrusion is formed on the outer side of the partition wall in the cold water tank of the direct water purifier, which can fix the partition wall inside the tank shell.

[0048] Furthermore, in the cold water tank of the direct water purifier according to an embodiment of the present invention, the refrigerant pipe extends longitudinally and has an upper bend and a lower bend, which can increase the contact area between the refrigerant pipe and the purified water and improve the cooling efficiency.

[0049] Furthermore, according to an embodiment of the present invention, the partition wall of the cold water tank of the direct water purifier is formed with a first through hole that allows the lower bending portion of the refrigerant pipe to pass through, making it easy to install the partition wall on the refrigerant pipe.

[0050] Furthermore, according to an embodiment of the present invention, the upper end of the cold water pipe in the cold water tank of the direct water purifier is formed by a transverse bend and inserted into the second joint formed on the side of the tank shell, so that the upper end of the cold water pipe can be easily disposed inside the tank shell.

[0051] Furthermore, according to an embodiment of the present invention, the partition wall of the cold water tank of the direct water purifier is formed with a second through hole in the shape of a slot through which the cold water pipe can pass, providing space for elastic deformation to the opposite side of the second joint even when the cold water pipe passes through the second through hole, and the upper end of the cold water pipe can be easily set or separated relative to the second joint.

[0052] Furthermore, according to an embodiment of the present invention, a temperature sensor is provided on the lower side of the cold water tank of the direct water purifier, which can measure the temperature of the fluid and control the temperature of the refrigerant.

[0053] Furthermore, according to another embodiment of the present invention, a cold water passage hole is formed on the side of the first joint of the tank shell in the cold water tank of the direct water purifier, which allows the purified water moving downward to move to the cold water pipe through the cold water passage hole, eliminating the need for a connecting pipe protruding downward, and making it easy to install inside the water purifier.

[0054] The effects of this invention are not limited to those described above, but should be understood to include all effects that can be inferred from the structure of the invention as described in the description of this invention or the scope of the claims. Attached Figure Description

[0055] Figure 1 This is a perspective view of a cold water tank for a direct-flow water purifier according to an embodiment of the present invention.

[0056] Figure 2 For along Figure 1 The AA line is enlarged to represent a cross-sectional view of the section.

[0057] Figure 3 To enlarge the representation Figure 2 The diagram shown is for part A.

[0058] Figure 4 To enlarge the representation Figure 2 The diagram shown is for part B.

[0059] Figure 5 The diagram shows the cold water pipes of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention.

[0060] Figure 6 The diagram shows the refrigerant pipes and partition walls of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention.

[0061] Figure 7 The diagram is an enlarged view showing a modified example of the refrigerant pipe and partition wall of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention.

[0062] Figure 8 The diagram shows an enlarged view of the partition wall of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention.

[0063] Figure 9 The diagram shows a modified example of the partition wall of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention.

[0064] Figure 10 A cross-sectional view showing the connection portion of the cold water tank for a direct-flow water purifier according to another embodiment of the present invention. Detailed Implementation

[0065] The words and terms used in this specification and the scope of protection of the invention are not to be interpreted in their usual or dictionary sense. In order to best describe the invention, the inventor should interpret them in accordance with the principle of definable terms and concepts and in accordance with the meaning and concept of the technical idea of ​​the invention.

[0066] Therefore, the embodiments described in this specification and the structures shown in the figures are equivalent to a preferred embodiment of the present invention, and do not represent all the technical ideas of the present invention. Thus, there may be various equivalent technical solutions and modifications to replace this structure at the time of application of the present invention.

[0067] In this specification, terms such as “comprising” or “having” should be understood as indicating the presence of features, figures, steps, actions, structural elements, components or combinations thereof described in the specification, without precluding the presence or additional possibility of one or more other features or figures, steps, actions, structural elements, components or combinations thereof.

[0068] Unless otherwise specified, a structural element being located "in front of," "behind," "above," or "below" another structural element includes situations where it is directly connected to other structural elements and positioned "in front of," "behind," "above," or "below," as well as situations where another structural element is positioned in between. Furthermore, unless otherwise specified, a structural element being "connected" to another structural element includes both direct and indirect connections.

[0069] To clearly illustrate the invention in the figures, parts unrelated to the description are omitted. Throughout the specification, the same or similar structural elements are labeled with the same reference numerals.

[0070] The following description, with reference to figures, illustrates the cold water tank for a direct-flow water purifier according to the present invention. Figure 1 This is a perspective view of a cold water tank for a direct-flow water purifier according to an embodiment of the present invention. Figure 2 For along Figure 1 The AA line is enlarged to represent a cross-sectional view of the section. Figure 3 To enlarge the representation Figure 2 The diagram shown is for part A. Figure 4 To enlarge the representation Figure 2 The diagram shown is for part B. Figure 5 The diagram shows the cold water pipes of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention. Figure 6 The diagram shows the refrigerant pipes and partition walls of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention. Figure 7 The diagram is an enlarged view showing a modified example of the refrigerant pipe and partition wall of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention.

[0071] like Figures 1 to 4 As shown, a cold water tank 1 for a direct-flow water purifier according to an embodiment of the present invention includes a tank shell 10, an evaporator 20, a connecting part 30, a cold water pipe 40, a cold water outlet 50, partitions 60 and 60', a first temperature sensor 80, and a second temperature sensor 90.

[0072] like Figure 1 and Figure 2 As shown, the outer casing 10 has an internal space 11, which is longitudinally positioned on the ground to allow fluid to flow into the internal space 11 from the top and to discharge downwards. In one embodiment, the longitudinal height H of the outer casing 10 is at least four times the maximum transverse width W.

[0073] At this time, the outer shell 10 can be cylindrical. However, the outer shell 10 is not limited to a cylindrical shape, and can be in various shapes where the longitudinal height H is at least 4 times the maximum transverse width W.

[0074] The longitudinal height H of the outer casing 10 is at least four times the maximum transverse width W. When a direct-flow fluid is supplied to the outer casing 10 due to high pressure, the fluid volume is prevented from accumulating in a portion of the interior of the outer casing 10, thus preventing a decrease in cold water extraction performance.

[0075] The outer shell 10 can be made of stainless steel. However, the material of the outer shell 10 is not limited to stainless steel; it can be made of a variety of corrosion-resistant metals.

[0076] like Figure 2 As shown, a fluid inflow pipe 14 is provided on the upper side of the outer casing 10 to allow fluid to flow into the interior of the outer casing 10. At this time, one end of the fluid inflow pipe 14 on the inner space 11 side of the outer casing 10 is positioned on the upper side of the inner space 11. As a result, the clean water flowing into the inner space 11 moves from the upper part to the lower part of the inner space 11 of the outer casing 10.

[0077] like Figure 2 As shown, an evaporator 20 is longitudinally arranged in the internal space 11 of the outer casing 10 so that the fluid flowing into the outer casing 10 can be cooled as it moves downward.

[0078] At this time, as Figure 4 As shown, the evaporator 20 includes a refrigerant pipe 22 filled with refrigerant, which guides the refrigerant's movement. During the refrigerant's movement along the refrigerant pipe 22, heat exchange occurs between the refrigerant and the fluid as the fluid comes into direct contact with the pipe, thus cooling the fluid.

[0079] Reference Figure 1 , Figure 2 and Figure 6The two ends 20a and 20b of the refrigerant pipe 22 penetrate the top 16 of the outer casing 10, and the central part is disposed in the internal space 11. At this time, in order to improve the heat transfer efficiency between the refrigerant pipe 22 and the fluid, the central part of the refrigerant pipe 22 extends towards the lower part of the internal space 11, that is, in the same direction as the extension direction of the outer casing 10.

[0080] Therefore, a curved lower bend 24 is formed in the center of the refrigerant pipe 22 to change the direction of refrigerant movement from the bottom to the top. The lower bend 24 is U-shaped. However, the refrigerant pipe 22 is not limited to a U-shape and can have various structures that allow fluid to move through the interior of the casing 10. The lower bend 24 can increase the surface area of ​​the refrigerant pipe 22 that can contact the fluid. This improves the cooling efficiency of the fluid.

[0081] At this time, as Figure 7 As shown, a variation of the evaporator 20 of the cold water tank 1 for a direct-flow water purifier according to an embodiment of the present invention may include (N+1) lower bends 24 and N upper bends 26. Here, N is an integer; for example, when there are two lower bends 24, one upper bend 26 may be formed. In this way, the longer the refrigerant pipe 22, the wider the surface area where the refrigerant pipe 22 is connected to the fluid in the internal space 11, thus improving the cooling efficiency of the fluid.

[0082] On the other hand, such as Figure 2 As shown, the fluid flowing into the upper part of the internal space 11 of the outer casing 10 is cooled by the refrigerant pipe 22, increasing its density. The fluid that is being cooled further moves downwards due to convection. Thus, the relatively high-temperature fluid can move upwards into the internal space 11 due to convection before being discharged into the cold water outlet 50, undergoing repeated cooling, thereby improving cooling efficiency.

[0083] The evaporator 20 can be made of copper. However, the material of the evaporator 20 is not limited to copper; it can be made of a variety of metals with high thermal conductivity.

[0084] like Figure 3 As shown, a connecting part 30 is provided at the lower part of the outer casing 10. The connecting part 30 is used to cool by heat exchange with the refrigerant pipe 22, and to change the movement direction of the fluid moving towards the lower part of the internal space 11 to the upper side.

[0085] At this time, the connection part 30 of the cold water tank 1 for the direct water purifier according to an embodiment of the present invention may include a first outlet 32, a first inlet 34, a connecting pipe 36, a first joint 38, and a first fixing component 39.

[0086] like Figure 3As shown, a first outlet 32 ​​protruding downwards is formed at the bottom of the outer casing 10. The first outlet 32 ​​may be formed by a hollow protrusion to allow fluid communication between the fluid in the internal space 11 and the outside of the outer casing 10. Thus, fluid cooled in the internal space 11 of the outer casing 10 is discharged to the outside of the outer casing 10 through the first outlet 32.

[0087] At this time, the cooling fluid can be smoothly discharged through the first outlet 32 ​​located on the lower side of the outer shell 10 due to the pressure formed in the internal space 11 by the fluid flowing in through the fluid inlet pipe 14 and the weight of the fluid disposed in the internal space 11.

[0088] like Figure 3 As shown, a first inlet 34 is formed at the bottom of the outer casing 10, which is separated from the first outlet 32 ​​and protrudes towards the lower side of the outer casing 10, so that the fluid discharged through the first outlet 32 ​​can flow back into the internal space 11 of the outer casing 10.

[0089] The first inlet 34, like the first outlet 32, can be formed by a hollow protrusion to facilitate fluid communication with the outside of the housing 10. In this case, the first outlet 32 ​​and the first inlet 34 can be connected by a connecting pipe 36. The connecting pipe 36 guides the fluid discharged towards the first outlet 32, changing the direction of fluid movement to the internal space 11.

[0090] The connecting pipe 36 can be detachably connected to the first outlet 32 ​​and the first inlet 34. Therefore, if the connecting pipe 36, which is relatively exposed to the outside of the housing 10, is damaged, the user can easily replace it. Furthermore, the manufacturing process of the bottom 18 of the housing 10 is simple and easy to injection mold.

[0091] like Figure 3 As shown, a first connecting portion 38 protruding towards the internal space 11 is formed on the bottom 18 of the outer casing 10. The first connecting portion 38 can be formed in a hollow shape to create a channel at the center in the extending direction, and is configured to communicate with the first inlet 34 in a row across the bottom 18 of the outer casing 10. However, the position of the first connecting portion 38 is not limited as long as the channel formed in the first connecting portion 38 can be connected in a way that allows fluid communication with the channel formed in the first inlet 34. In this case, the channel formed in the first connecting portion 38 is parallel to the extending direction of the outer casing 10.

[0092] like Figure 3 As shown, the cooled fluid, which is discharged through the first outlet 32 ​​and whose movement direction is changed by the connecting pipe 36, moves into the internal space 11 through the first inlet 34 and the first junction 38.

[0093] At this time, as Figure 3 As shown, a first fixing member 39 is disposed at the end of the internal space 11 of the first joint 38. The first fixing member 39 serves to fix the cold water pipe 40 to the first joint 38 when the cold water pipe 40 (described later) is inserted into the first joint 38. Furthermore, the first joint 38 seals the space between the cold water pipe 40 and the first joint 38, so that all fluid guided through the first joint 38 can move towards the cold water pipe 40.

[0094] Therefore, such as Figure 3 As shown, the first fixing member 39 is disposed between the outer peripheral surface of the cold water pipe 40 and the inner peripheral surface of the first connecting portion 38. In this configuration, the first fixing member 39 is arranged to surround the inner and outer surfaces of the upper edge of the first connecting portion 38. With this configuration, when the lower end 43 of the cold water pipe 40 is inserted downwards into the first connecting portion 38, the friction between the first fixing member 39 and the cold water pipe 40 can more firmly bond the first fixing member 39 to the first connecting portion 38.

[0095] The first fixing member 39 may be made of a material with the same elasticity, such as rubber, to prevent fluid from flowing between the cold water pipe 40 and the first joint 38.

[0096] On the other hand, the first joint 38 is connected to the cold water pipe 40. At this time, the fluid that is cooled by contact with the refrigerant pipe 22 inside the outer casing 10 flows into the cold water pipe 40 through the first joint 38 after changing direction upward through the connecting pipe 36.

[0097] Therefore, the fluid moving into the cold water pipe 40 moves along the cold water pipe 40 to the upper part of the internal space 11 of the outer casing 10. During this upward movement, the fluid inside the cold water pipe 40 and the fluid being cooled in the internal space 11 are cooled again, maintaining a low temperature. This is because the fluid in the internal space 11 is relatively closer to the refrigerant pipe 22 than the fluid inside the cold water pipe 40, thus maintaining a low temperature.

[0098] In this way, by cooling the fluid first inside the housing 10 and then cooling it a second time along the cold water pipe 40 passing through the housing 10, the fluid can be cooled rapidly and can be kept at a low temperature without temperature change until it is discharged to the user.

[0099] like Figure 4 As shown, the upper end 41 of the cold water pipe 40 is connected to the cold water outlet 50 formed on the upper end side of the outer casing 10. Fluid flowing along the cold water pipe 40 through the internal space 11 of the outer casing 10 is discharged through the cold water outlet 50 while maintaining a low temperature.

[0100] At this time, as Figure 4 As shown, the cold water pipe 40 has a bend 42 to allow it to be bent laterally, thereby connecting to the cold water outlet 50 formed on the upper side of the outer casing 10. At this time, as... Figure 5 As shown, the cold water pipe 40 can be elastically deformed in the opposite direction to the bending direction of the bend 42 while its lower end is engaged with the first joint 38 (hereafter, the bending direction of the bend 42 will be defined as the front and its opposite direction as the rear).

[0101] Therefore, when the user connects the cold water pipe 40 to the outer casing 10, the lower end 43 of the cold water pipe 40 is first connected to the first connection part 38. Then, adjustments are made so that the upper end 41 of the cold water pipe 40 can be connected to the cold water outlet 50 while the upper end 41 of the cold water pipe 40 is pulled in the opposite direction to the bending direction of the bend 42. Afterwards, pressure is applied to the upper end 41 of the cold water pipe 40 in the bending direction of the bend 42 to connect it to the cold water outlet 50.

[0102] Conversely, when the user separates the cold water pipe 40 from the outer casing 10, the upper end 41 of the cold water pipe 40 can first be pulled in the opposite direction to the bending direction of the bend 42 to separate it from the cold water outlet 50, and then the lower end 43 of the cold water pipe 40 can be separated from the first joint 38.

[0103] In this way, the cold water pipe 40 includes a bend 42, which allows the user to easily connect or disconnect the cold water pipe 40 relative to the outer casing 10, thereby reducing the manufacturing time of the water purifier. Even if there is an external impact when the two ends of the cold water pipe 40 are connected to the inside of the outer casing 10, the problem of the cold water pipe detaching can be prevented.

[0104] like Figure 4 As shown, the cold water outlet 50 of the upper end 41 of the cold water pipe 40 is formed on the upper end side of the outer casing 10, and the fluid moving along the cold water pipe 40 is discharged to the outside of the outer casing 10.

[0105] At this time, the cold water outlet 50 according to an embodiment of the present invention includes a side wall portion 52, a side cover 54, a second joint portion 56, and a second fixing member 58.

[0106] like Figure 4 As shown, the side wall portion 52 is cylindrical, protruding from the upper end side of the outer casing 10. Thus, the center portion of the side wall portion 52 is connected to the interior space 11 of the outer casing 10 in a manner that allows communication between the interior space 11 of the outer casing 10 and the exterior of the outer casing 10.

[0107] A side cover 54 is attached to the front end of the side wall portion 52, blocking the outer shell 10 from the inner space 11. The side cover 54 prevents fluid inserted into the inner space 11 from flowing out through the side wall portion 52. For this purpose, as shown... Figure 4 As shown, a sealing member may be disposed between the side cover 54 and the side wall portion 52.

[0108] The side cover 54 has a second joint 56 that connects to the upper end portion 41 of the cold water pipe 40. The second joint 56 protrudes from the side cover 54 toward the interior space 11. The second joint 56 is cylindrical, and its inner cross-section corresponds to the cross-section of the cold water pipe 40, so that the upper end portion 41 of the cold water pipe 40 can be inserted into it. The second joint 56 is connected to a through hole formed in the side cover 54 or a flow path formed toward the outside of the side cover 54, so that fluid moving along the cold water pipe 40 can pass through the side cover 54 and be discharged to the outside.

[0109] At this time, the second joint 56 can have the same shape as the first joint 38. Thus, the cold water pipe 40 can be manufactured from a single pipe with a specified cross-sectional shape at both the upper and lower ends, reducing manufacturing time and costs.

[0110] At this time, a second fixing member 58 is disposed between the second joint 56 and the upper end 41 of the cold water pipe 40 so that the cold water pipe 40 can be fixed to the second joint 56. However, the second fixing member 58 may differ from the first fixing member 39 only in size, and have the same shape or function. Therefore, the description of the second fixing member 58 is replaced by the description of the first fixing member 39.

[0111] Figure 8 The diagram shows an enlarged view of the partition wall of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention. Figure 9 The diagram shows a modified example of the partition wall of the cold water tank for a direct-flow water purifier according to an embodiment of the present invention.

[0112] On the other hand, such as Figure 6 As shown, at least one partition wall 60 is provided in the internal space 11 of the outer shell 10 of the cold water tank 1 for a direct water purifier according to an embodiment of the present invention.

[0113] The partition 60 horizontally divides the internal space 11 of the outer shell 10. In this embodiment, there are two partitions 60 in the internal space 11, but the number of partitions 60 is not limited.

[0114] Therefore, such as Figure 8 and Figure 9 As shown, according to an embodiment of the present invention, the partition walls 60, 60' of the cold water tank 1 for a direct water purifier include a partition plate 64 corresponding to the cross-sectional shape of the tank shell 10, at least one through hole 66 formed in the partition plate 64, and a protrusion 68 formed in the outer side portion 62 of the partition plate 64.

[0115] The partition 64 corresponds to the cross-sectional shape of the outer casing 10. In this embodiment, the cross-section of the outer casing 10 is circular, and the partition 64 is circular in shape in a corresponding manner.

[0116] The baffle 64 allows the fluid to be cooled in individual spaces within the internal space 11 of the outer casing 10, defined by the baffle 64. Within these individual spaces, the fluid comes into contact with the refrigerant pipe 22 and circulates vertically via convection. This convection effect significantly increases cooling efficiency compared to when the fluid circulates throughout the entire internal space 11 of the outer casing 10. When multiple baffles 64 are arranged within the internal space 11 of the outer casing 10, the spacing between the baffles 64 can be adjusted according to the cooling efficiency of the fluid.

[0117] In this way, by utilizing the convection phenomenon in the individual spaces divided by the partition 64, the same effect as when increasing the length of the refrigerant pipe 22 can be achieved without increasing the physical length of the refrigerant pipe 22, thus achieving the effect of reducing the manufacturing cost of the cold water tank 1 for the direct water purifier.

[0118] Reference Figure 6 and Figure 8 The partition plates 64 of the partitions 60 and 60' are formed with a plurality of through holes 66. At this time, the plurality of through holes 66 of the cold water tank 1 for the direct water purifier according to an embodiment of the present invention include a first through hole 66b through which the refrigerant pipe 22 passes, a second through hole 66c and 66'c through which the cold water pipe 40 passes, and a third through hole 66a formed in a manner that allows fluid to move.

[0119] To improve the cooling efficiency of the fluid in the internal space 11 of the outer casing 10, a refrigerant pipe 22 is formed to allow the lower bend 24 to be positioned on the lower side of the internal space 11. Therefore, when the partition 64 is configured to divide the internal space 11, the refrigerant pipe 22 is disposed through the partition 64.

[0120] At this time, when the refrigerant pipe 22 passes through the first through hole 66b of the partition 64, the outer peripheral surface of the refrigerant pipe 22 can be supported on the inner peripheral surface of the first through hole 66b. Thus, the partition 64 also serves as a support, so that the refrigerant pipe 22 can be positioned at the center of the internal space 11 of the outer casing 10.

[0121] On the other hand, such as Figure 8As shown, the first through hole 66b can be extended. Therefore, the lower bend 24 of the refrigerant pipe 22 can pass through the extended first through hole 66b. Thus, the two sides of the refrigerant pipe 22, bent into a U-shape by the lower bend 24, can be supported at both ends in the extending direction of the first through hole 66b. This allows the partition 64 to be manufactured and integrated with the outer casing 10 without the refrigerant pipe 22 being inserted, thereby reducing manufacturing costs and time. If the refrigerant pipe 22 needs to be replaced when using the cold water tank 1 for a direct-flow water purifier, it can be easily replaced.

[0122] like Figure 7 and Figure 9 As shown, multiple first through holes 66b can be formed. This is so that when multiple lower bends 24 are formed on the refrigerant pipe 22 to improve the cooling efficiency of the refrigerant pipe 22, each lower bend 24 can be inserted into multiple first through holes 66b for support. Therefore, the number of extended first through holes 66b corresponds to the number of lower bends 24.

[0123] On the other hand, such as Figure 5 and Figure 8 As shown, a cold water pipe 40 is inserted into the second through holes 66c and 66'c. At this time, as described above, the cold water pipe 40 can elastically deform towards the rear of the bend 42 to engage with the second connecting part 56, thus the second through holes 66c and 66'c extend towards the rear of the bend 42.

[0124] At this time, as Figure 5 and Figure 8 As shown, when multiple partitions 64 are formed, the extension length d2 of the second through hole 66'c of the partition 64 disposed on the upper side 60' can be longer than the extension length d1 of the second through hole 66c of the partition 64 disposed on the lower side 60. It can be configured such that when the number of partitions 60 is 3 or more, the extension length of the second through holes 66c and 66'c becomes longer from the lower side to the upper side.

[0125] This is for the purpose of Figure 5 As shown, when the cold water pipe 40 is elastically deformed backward, so that the upper end 41 is combined with the second joint 56 while the lower end 43 is combined with the first joint 38, the rear side of the cold water pipe 40 can be supported by the rear inner side of the multiple second through holes 66c.

[0126] Furthermore, regarding the extension length of the second through hole 66c, when the cold water pipe 40 is disposed or separated from the second joint 56, the cold water pipe 40 is elastically deformed only to the required length, which serves to prevent the cold water pipe 40 from being excessively deformed backward and damaged.

[0127] On the other hand, such as Figure 8As shown, a pair of fixing protrusions 67 protruding from both sides in the left-right direction are formed on the inner circumferential surface of the second through hole 66'c formed in the upper partition 60'. The fixing protrusions 67 prevent the cold water pipe 40 from disengaging rearward when the upper end 41 of the cold water pipe 40 is engaged with the second joint 56.

[0128] Conversely, when the upper end 41 of the cold water pipe 40 is separated from the second joint 56, if the upper end 41 of the cold water pipe 40 is pulled to the rear, the cold water pipe 40 can elastically deform and be positioned behind the second through hole 66c formed in the upper partition wall 60' on the front side of the second through hole 66'c, between a pair of fixing protrusions 67. In this case, contrary to the above, it can prevent the cold water pipe 40 from detaching from the rear to the front, and prevent the inconvenience of having to hold the cold water pipe 40 to maintain its rearward deformed state when the user joins or separates the cold water pipe 40.

[0129] At this time, as Figure 8 As shown, a pair of fixed protrusions 67 may be formed in the second through hole 66'c of the uppermost partition wall 60', but not in the second through holes 66c of the other partition walls 60.

[0130] On the other hand, such as Figure 8 As shown, the partition wall 60 is formed with a plurality of third through holes 66a. The plurality of third through holes 66a provide channels for fluid cooled inside the housing 10 to move from the upper space to the lower space in the individual spaces divided by the partition wall 60.

[0131] Multiple third through holes 66a can be arranged at predetermined intervals along the circumference of the partition wall 60. In this case, as... Figure 8 As shown, the third through hole 66a can be configured to be spaced apart from the first through hole 66b through which the refrigerant pipe 22 passes. This results in a higher density of fluid being cooled near the refrigerant pipe 22, and when moving downwards, it restricts direct movement through the third through hole 66a into the lower part of the internal space 11, thus improving cooling efficiency. However, the position of the third through hole 66a formed on the partition 64 is not restricted.

[0132] On the other hand, the ratio of the area of ​​the partition 64 to the area of ​​the plurality of through holes 66, including the first through hole 66b, the second through hole 66c, 66'c and the third through hole 66a through which fluid can pass, is approximately 14:1 to 3:1. When the area of ​​the plurality of through holes 66 increases, causing the ratio of the area of ​​the partition 60 to the area of ​​the plurality of through holes 66 to exceed 3:1, the fluid can move rapidly downwards, preventing the fluid from mixing inside the casing 10 due to convection and reducing cooling efficiency.

[0133] Furthermore, when the area of ​​the multiple through holes 66 decreases, causing the ratio of the area of ​​the partition 64 to the area of ​​the multiple through holes 66 to exceed 14:1, the fluid cannot move smoothly downwards, resulting in a long extraction time for cold water. In this way, a ratio of the area of ​​the partition 60 to the area of ​​the multiple through holes 66 of approximately 14:1 to 3:1 can shorten the extraction time of cold water and improve cooling efficiency.

[0134] On the other hand, such as Figure 9 As shown, the partition 64 includes at least one protrusion 68 that protrudes from an outer portion 62 having a shape corresponding to the inner side 13 of the outer casing 10 and engages with the inner side 13 of the outer casing 10.

[0135] The outer side 62 is spaced apart from the inner side 13 of the outer casing 10. Thus, the partition 60 is smoothly inserted into the interior of the outer casing 10 to combine the partition 60 and the outer casing 10.

[0136] When at least one protrusion 68 is positioned for placing a partition 64 inside the housing 10, it contacts the inner side 13 of the housing 10, and the partition 60 is fixed inside the housing 10.

[0137] Furthermore, at least one protrusion 68 is arranged at equal intervals and is formed of an elastic material. Thus, the protrusion 68 can increase the fixing force for securing the partition wall 60 to the outer shell 10.

[0138] On the other hand, the cold water tank 1 for a direct-flow water purifier according to an embodiment of the present invention may further include a temperature sensor.

[0139] At this time, as Figure 2 , Figure 3 and Figure 4 As shown, multiple temperature sensors can be configured. In this embodiment, a first temperature sensor 80 is configured adjacent to the cold water outlet 50, and a second temperature sensor 90 is configured adjacent to the first joint 38.

[0140] like Figure 4 As shown, a first temperature sensor 80 is disposed through the upper side of the housing 10. The first temperature sensor 80 measures the temperature of the fluid adjacent to the cold water outlet 50. Based on the temperature calculated using the first temperature sensor 80, the temperature discharged from the housing 10 is determined, and when there is a difference between the expected temperature of the discharged cold water and the appropriate temperature, the temperature of the refrigerant moving along the refrigerant pipe 22 is controlled.

[0141] like Figure 3As shown, a second temperature sensor 90 is disposed through the lower side of the housing 10. The second temperature sensor 90 measures the temperature of the fluid discharged through the first outlet 32 ​​to calculate the temperature of the fluid flowing into the cold water pipe 40. Based on this, the temperature calculated using the second temperature sensor 90 is compared with the temperature of the cold water discharged from the housing 10 calculated using the first temperature sensor 80. When the temperature measured by the first temperature sensor 80 is higher than the temperature measured by the second temperature sensor 90 by a predetermined value, the temperature of the refrigerant is controlled.

[0142] At this time, in the temperature sensor including the first temperature sensor 80 and the second temperature sensor 90, the first sensing part 82 and the second sensing part 92, which measure temperature, are arranged apart from the refrigerant pipe 22 at a distance of 20 mm or more and 30 mm or less, preferably 25 mm apart. When the first sensing part 82 and the second sensing part 92 are arranged at approximately 20 mm from the refrigerant pipe 22, it may be difficult to accurately measure the temperature of the fluid due to the influence of the refrigerant pipe 22. Therefore, by appropriately separating the first sensing part 82 and the second sensing part 92 from the refrigerant pipe 22, the influence of the refrigerant pipe 22 can be minimized, and the temperature of the fluid can be accurately measured.

[0143] Figure 10 A cross-sectional view showing the connection portion of the cold water tank for a direct-flow water purifier according to another embodiment of the present invention.

[0144] At this time, the connecting part 30 of the cold water tank 1 for the direct water purifier according to another embodiment of the present invention may include a first connecting part 38' and a first fixing part 39.

[0145] A first joint portion 38' is formed at the bottom 18 of the outer casing 10, protruding toward the inner space 11. The first joint portion 38' is hollow and cylindrical, so as to create a channel at the center in the extending direction. At this time, the channel formed in the first joint portion 38' is parallel to the extending direction of the outer casing 10.

[0146] like Figure 10 As shown, a cold water through hole 37 is formed on the lower side of the first joint 38' to facilitate fluid communication between the internal channel and the internal space 11 of the outer casing 10. At this time, when the fluid cooled in the internal space 11 of the outer casing 10 moves downward due to the density difference, it moves along the internal channel of the first joint 38' through the cold water through hole 37.

[0147] The lower end of the cold water pipe 40 can be inserted into and connected to the first joint 38'. Fluid flowing into the first joint 38' through the cold water through hole 37 flows into the interior of the cold water pipe 40 and is discharged into the cold water outlet 50. Therefore, as Figure 10As shown, the side of the lower end of the cold water pipe 40 is spaced apart from the bottom 18 of the outer casing 10 to prevent blockage of the cold water through hole 37.

[0148] In this way, the first outlet 32, the first inlet 34 and the connecting pipe 36 of the cold water tank 1 for a direct water purifier according to an embodiment of the present invention can be removed, reducing the limitation of the configuration space of the tank shell 10 and reducing the damage to the tank shell 10 during transportation.

[0149] At this time, a first fixing member 39 is included to secure the lower end 43 of the cold water pipe 40 to the first joint 38'. However, the description of the first fixing member 39 is the same as that of the first fixing member 39 of the cold water tank 1 for a direct water purifier according to the above embodiment of the present invention, and therefore a detailed description is omitted here.

[0150] This invention relates to a cold water tank for a direct-flow water purifier used for cooling fluids. As can be seen in detail with reference to the figure, it can reduce the manufacturing cost of the cold water tank used for extracting cold water, improve the performance of cold water extraction, and make it easy for users to install or disconnect the cold water pipe.

[0151] The above describes a cold water tank for a direct-flow water purifier according to various embodiments of the present invention. However, those skilled in the art will clearly understand that the cold water tank for a direct-flow water purifier according to these embodiments is not necessarily used to cool the filtered water in the water purifier, but can be used in devices that require cooling fluid.

[0152] As described above, it will be apparent to those skilled in the art that, in addition to the embodiments described above, the present invention can be embodied in other specific forms without departing from its spirit or scope, when examining the preferred embodiments of the invention. Therefore, the above embodiments should be considered illustrative rather than limiting, and thus the invention is not limited to the foregoing description, but can be modified within the scope of the appended claims and their equivalents.

Claims

1. A cold water tank for a direct water purifier, characterized by, include: The outer shell of the container forms an internal space, with a longitudinal height at least four times its maximum transverse width, and is longitudinally configured such that fluid flows in from the top and exits to the bottom. An evaporator, disposed within the aforementioned internal space, facilitates the movement of the refrigerant used to cool the aforementioned fluid. A connecting part, disposed at the lower part of the aforementioned housing, converts the direction of the fluid moving downwards to upwards. A cold water pipe, with its lower end connected to the aforementioned connecting portion, extends longitudinally within the aforementioned internal space in a manner that guides the cooling fluid upwards towards the interior space. A cold water outlet is formed at the upper end of the aforementioned tank shell, connected to the upper end of the aforementioned cold water pipe, to discharge the aforementioned fluid to the outside of the aforementioned tank shell. At least one partition wall horizontally divides the aforementioned internal space, forming multiple through holes; The aforementioned cold water outlet includes a second joint formed on the upper end side of the aforementioned housing shell, protruding from the aforementioned internal space side of the cold water outlet to facilitate the insertion of the upper end of the aforementioned cold water pipe. The aforementioned through holes include the second through hole through which the aforementioned cold water pipe passes; The second through hole includes a pair of fixing protrusions that protrude from the two inner sides of the second through hole in a direction perpendicular to the extension direction of the second through hole, so as to fix the cold water pipe inserted through the second through hole to one side of the extension direction of the second through hole.

2. The cold water tank for a direct water purifier according to claim 1, characterized by The aforementioned connection includes a cylindrical first joint that protrudes upward from the bottom of the outer casing to facilitate the longitudinal insertion of the lower end of the cold water pipe.

3. The cold water tank for a direct-flow water purifier according to claim 2, characterized in that, It also includes a first fixing component, which is disposed between the outer peripheral surface of the cold water pipe and the inner peripheral surface of the first joint, so as to fix the lower end of the cold water pipe when it is inserted into the first joint.

4. The cold water tank for a direct-flow water purifier according to claim 2, characterized in that, The aforementioned connecting part includes: The hollow first outlet protrudes downward from the bottom of the outer shell of the aforementioned box to facilitate the discharge of the fluid from the aforementioned internal space to the outside; A first inlet protrudes downward from the bottom of the outer casing to allow fluid discharged through the first outlet to flow into the internal space via the first joint. The first inlet is spaced apart from the first outlet. The connecting pipe has one end connected to the first outlet and the other end connected to the first inlet, so as to guide the fluid discharged to the first outlet through the first inlet.

5. The cold water tank for a direct-flow water purifier according to claim 2, characterized in that, The aforementioned connecting portion further includes at least one cold water through hole formed on the lower end side of the aforementioned first connecting portion. With the lower end of the cold water pipe separated from the bottom of the outer casing, it is joined to the first joint so that the lower end of the cold water pipe is positioned above the cold water through hole.

6. The cold water tank for a direct-flow water purifier according to claim 1, characterized in that, The ratio of the total area of ​​the aforementioned partition to the area of ​​the aforementioned multiple through holes is 3 to 14:

1.

7. The cold water tank for a direct-flow water purifier according to claim 1, characterized in that, The outer side of the aforementioned partition wall has a shape corresponding to the inner side of the aforementioned outer casing. The aforementioned partition includes at least one protrusion that projects from the outer side of the partition and contacts the inner side of the outer casing. The outer side of the aforementioned partition is separated from the inner side of the aforementioned outer casing.

8. The cold water tank for a direct-flow water purifier according to claim 1, characterized in that, The aforementioned evaporator includes refrigerant pipes that extend through the top of the outer casing at both ends and are disposed in the central part of the internal space. The aforementioned refrigerant pipe includes a lower bend that extends longitudinally and changes the direction of refrigerant movement from the lower side to the upper side. The aforementioned through holes include the aforementioned multiple first through holes through which the refrigerant pipe passes.

9. The cold water tank for a direct-flow water purifier according to claim 1, characterized in that, The aforementioned evaporator includes refrigerant pipes that extend through the top of the outer casing at both ends and are disposed in the central part of the internal space. The refrigerant pipe includes N upper bends extending longitudinally to change the direction of refrigerant movement from the upper side to the lower side, and N+1 lower bends to change the direction of refrigerant movement from the lower side to the upper side. The aforementioned plurality of through holes include the plurality of first through holes through which the refrigerant pipe passes, where N is a natural number.

10. The cold water tank for a direct-flow water purifier according to claim 8, characterized in that, The aforementioned first through hole extends to facilitate the passage of the aforementioned lower bent portion.

11. The cold water tank for a direct-flow water purifier according to claim 1, characterized in that, The upper end of the aforementioned cold water pipe is formed by a horizontal bend.

12. The cold water tank for a direct-flow water purifier according to claim 11, characterized in that, The upper end of the aforementioned cold water pipe extends in the opposite direction to the bending direction so that the cold water pipe can be elastically deformed when it passes through the second through hole.

13. The cold water tank for a direct-flow water purifier according to claim 1, characterized in that, It also includes a first temperature sensor, which is disposed on the outer shell of the casing so as to separate the first sensing part above the evaporator disposed on the side of the cold water outlet and measure the temperature of the fluid.

14. The cold water tank for a direct-flow water purifier according to claim 13, characterized in that, The first sensing unit is arranged at a distance of 20 mm or more and 30 mm or less from the top of the evaporator located on the side of the cold water outlet.

15. The cold water tank for a direct-flow water purifier according to claim 1, characterized in that, It also includes a second temperature sensor, which is disposed on the outer casing of the housing so that a second sensing element is disposed at a distance from the lower part of the evaporator disposed on the bottom side of the outer casing of the housing, so as to measure the temperature of the fluid.

16. The cold water tank for a direct-flow water purifier according to claim 15, characterized in that, The second sensing unit is arranged at a distance of 20 mm or more and 30 mm or less from the lower part of the evaporator disposed on the bottom side of the outer casing.

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