JP2017165483A - Cold and hot water unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cold and hot water unit comprising a sterilizer inside a cold water tank, according to the present invention.SOLUTION: According to the present invention, a cold and hot water unit includes: a hot water tank in which hot water is reserved; a cold water tank which is arranged above the hot water tank and in which cold water is reserved; a separation plate which is installed in the cold water tank and separates the inside of the cold water tank vertically into a normal-temperature water region and a cold water region; and a sterilizer which is arranged in the cold water tank below the separation plate and radiates ultraviolet light into the cold water tank. The sterilizer includes: a fixed part which penetrates a bottom face of the cold water tank to protrude at least partially to above the bottom face; a body which is mounted detachably on the protruding part of the fixed part and has an opening formed at an upper part; and a light-emitting part which is installed in the body and radiates ultraviolet light into the cold water tank through the opening of the body.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a chiller / heater. More specifically, the present invention relates to a chiller / heater having a sterilizer inside a chilled water tank.

  In recent years, environmental pollution has become increasingly severe with rapid industrial development. Water pollution is particularly serious, and households and public offices use water for drinking after purifying the water. A chiller / heater may be used for the water purification process.

  In general, a chiller / heater means a device that heats or cools water to supply hot and cold water, but purifies water supplied from the outside, or purified water stored in a raw water tank. A device for supplying water to the user can also be included in the water cooler / heater. On the other hand, since the user immediately uses the water discharged from the water heater as drinking water, periodic sterilization and disinfection of the water heater are necessary.

  The chiller / heater may be separately provided with a chilled water tank and a hot water tank so that the chilled water and the hot water can be separately stored. In the case of a hot water tank, since warm water is stored, a certain degree of sterilization effect can be expected. However, since the temperature of the water stored in the cold water tank is low, there is an inconvenience that the user must disassemble the cold water tank and perform sterilization and disinfection separately.

  An object of the present invention is to provide a chiller / heater that can suppress bacterial growth by sterilizing a cold water tank using ultraviolet rays.

  An exemplary embodiment of a chiller / heater according to an embodiment of the present invention includes a hot water tank in which hot water is stored, a chilled water tank that is disposed above the hot water tank and stores chilled water, and the chilled water tank includes A separation plate that is installed to separate the inside of the cold water tank up and down to separate into a normal temperature water region and a cold water region, and is installed below the separation plate inside the cold water tank to emit ultraviolet rays into the cold water tank Includes sterilizer. The sterilizer is a fixed part that penetrates the bottom surface of the cold water tank and protrudes at least partially at the upper part of the bottom surface, and a body that is detachably mounted on the protruding part of the fixed part and has an opening at the upper part, And a light emitting unit that is installed inside the body and emits ultraviolet light into the cold water tank through the opening of the body.

  In an exemplary embodiment, the cold water tank may be a stainless steel tank.

  In an exemplary embodiment, the fixing part may have a cylindrical shape in which a hollow is formed. The light emitting unit may include a substrate housed in the body, and at least one ultraviolet light emitting diode (UV LED) disposed on the upper surface of the substrate and emitting ultraviolet rays upon receiving power from the outside. The ultraviolet light emitting diode can be supplied with electric power from the outside through the hollow of the fixed portion.

  In an exemplary embodiment, the water cooler / heater may further include a diffusion unit that is disposed on the light emitting unit in the body and uniformly disperses the ultraviolet rays emitted from the light emitting unit. The diffusion part may include quartz.

  In an exemplary embodiment, the body is detachably attached to the fixing part and accommodates the light emitting part therein, and is detachably attached to the lower body and accommodates the diffusion part therein. The upper body may include an upper body having an opening for supplying ultraviolet rays emitted from the light emitting unit to the inside of the cold water tank.

  In an exemplary embodiment, the lower body may be fastened to the fixing part and the upper body by screwing.

  In an exemplary embodiment, the lower body includes a first coupling unit coupled to the fixing unit, and extends upward from an upper end of the first coupling unit to be coupled to the upper body so that the light emitting unit is disposed therein. A second coupling part for accommodating the upper body, a support part extending radially outward from an upper end of the first coupling part to support the upper body, and a lower part extending from the support part to increase the rigidity of the lower body. Lower ribs may be included to improve.

  In an exemplary embodiment, a gap may be formed between the bottom surface of the cold water tank and the end of the lower rib.

  In an exemplary embodiment, the upper body is detachably attached to the second coupling part and accommodates the diffusion part therein, and radially inward from an upper end of the third coupling part. An upper rib that extends and forms an opening for supplying the ultraviolet light emitted from the light emitting part to the inside of the cold water tank may be included.

  In an exemplary embodiment, the chiller / heater may further include a sealing unit for preventing water stored in the chilled water tank from penetrating into the sterilizer. The sealing part includes a first sealing member that covers an upper surface of the fixing part and contacts an inner peripheral surface of the lower body, a second sealing member disposed between the lower body and the upper body, and A third sealing member may be included between the upper body and the diffusion part.

  In an exemplary embodiment, the first sealing member includes a sealing body inserted into the fixing part, and extends radially outward from an upper end of the sealing body to cover an upper surface of the fixing part. A sealing rib that contacts the inner peripheral surface of the lower body may be included.

  In an exemplary embodiment, an outer peripheral surface of the third sealing member may be in contact with an inner peripheral surface of the third coupling portion, and the inner peripheral surface may surround the outer peripheral surface of the diffusion portion.

  According to an embodiment of the present invention, the chiller / heater includes a sterilizer provided on the bottom surface of the chilled water tank, and the sterilizer emits ultraviolet rays to sterilize and disinfect the cold water tank and the water contained therein. Can be executed. Thereby, the cleanliness of the water heater can be improved by suppressing bacterial growth.

  However, the effects of the present invention are not limited to the effects mentioned above, and can be variously expanded without departing from the spirit and scope of the present invention.

It is a perspective view which shows the water heater according to an exemplary embodiment. It is a front view which shows the water heater of FIG. It is sectional drawing which shows the water heater / heater of FIG. It is a cross-sectional perspective view which shows the sterilizer of FIG. Similarly, it is a cross-sectional perspective view which shows the sterilizer of FIG. It is an exploded view which shows the sterilizer of FIG.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. On the other hand, specific structural or functional descriptions are merely illustrative for purposes of illustrating embodiments of the invention and are not intended to limit the invention to the particular forms disclosed. It should be understood as including all modifications, equivalents or alternatives that fall within the spirit and scope of the invention. In addition, the same reference numerals are used for the same components in the drawings, and duplicate descriptions for the same components are omitted.

  FIG. 1 is a perspective view showing a chiller / heater according to an exemplary embodiment. FIG. 2 is a front view showing the water heater / cooler of FIG. FIG. 3 is a cross-sectional view showing the water heater / cooler of FIG.

  Referring to FIGS. 1 to 3, the chiller / heater includes a main body 10 that forms an appearance, a chilled water tank 20 and a hot water tank 30 that are stored in the main body 10 and store chilled water and hot water, respectively. A water supply unit for supplying water to the water, a filter 40 for purifying water supplied through the water supply unit, a cold water tank 20 and a water discharge unit for discharging water stored in the hot water tank 30 to the outside, and cooling the water inside the cold water tank 20 And a sterilizer 100 that performs a sterilization operation on the cold water tank 20.

  A hot water coke 13 and a cold water coke 14 for discharging hot water and cold water, respectively, are installed on the front surface of the main body 10. The hot water coke 13 is connected to the hot water tank 30 through a hot water discharge pipe 63 described later, and the cold water coke 14 is connected to the cold water tank 20 through a cold water discharge pipe 62 described later.

  The hot water coke 13 and the cold water coke 14 are respectively provided with a hot water lever 11 and a cold water lever 12, and the user can take out the hot water or cold water by operating the hot water lever 11 or the cold water lever 12. Specifically, the user can take out hot water from the hot water coke 13 by pushing or pulling the hot water lever 11, and discharge cold water from the cold water coke 14 by pushing or pulling the cold water lever 12. be able to.

  On the other hand, a safety accident may occur due to sudden hot water discharge. In particular, if the child carelessly operates the hot water lever 11 to discharge the hot water, there is a risk of burns. In order to prevent such an accident, a hot water button 15 is further provided at the upper end of the hot water coke 13. That is, the hot water is not discharged only by operating the hot water lever 11, and the hot water is discharged from the hot water coke 13 only when the user additionally presses the hot water button 15.

  Although not shown, a cold water button may be further provided at the upper end of the cold water coke 14 as necessary. In this case, cold water may be discharged from the cold water coke 14 only when the user presses the cold water button while operating the cold water lever 12.

  In one embodiment, the main body 10 may further include a tray 17 installed under the hot water coke 13 and the cold water coke 14. A storage space of a predetermined size is formed inside the tray 17 and can store water discharged from the hot water coke 13 and the cold water coke 14. Thereby, it is possible to prevent the bottom around the water heater / heater from getting wet. The water contained in the tray 17 can be removed manually by the user. Unlike this, a separate drain pipe can be connected to the tray 17 to automatically remove the water contained in the tray 17.

  The water supply unit can receive water from the outside and supply the water to the cold water tank 20 and the hot water tank 30. The water supply unit receives a supply of water from an external water supply source and provides the first water supply pipe 51 to the filter 40, a second water supply pipe 53 that supplies the water purified by the filter 40 to the cold water tank 20, and the cold water tank 20 The third water supply pipe 55 for supplying water stored in the hot water tank 30 is included.

  The first water supply pipe 51 can penetrate the main body 10 to connect the external water supply source and the filter 40.

  The filter 40 is installed inside the main body 10, and a plurality of filters 40 are installed as necessary. The filter 40 can filter bacteria and impurities with the supplied water. For example, the filter is a precipitation filter, a reverse osmosis filter, a hollow fiber membrane filter, or the like.

  The second water supply pipe 53 can connect the filter 40 and the cold water tank 20. At this time, the second water supply pipe 53 is connected to the upper part of the cold water tank 20, thereby preventing water from flowing backward from the cold water tank 20 toward the filter 40.

  The third water supply pipe 55 connects the cold water tank 20 and the hot water tank 30, and can supply water stored in the cold water tank 20 to the hot water tank 30. In this case, the third water supply pipe 55 can connect the lower part of the cold water tank 20 and the lower part of the hot water tank 30. Since the hot water tank 30 is disposed below the cold water tank 20, the water stored in the cold water tank 20 can be supplied to the hot water tank 30 without using a separate power source, and the water in the hot water tank 30 is supplied to the cold water tank. Backflow to 20 can be prevented.

  The water discharge unit can discharge water stored in the cold water tank 20 and the hot water tank 30 to the outside. Specifically, the water discharge unit may include a cold water discharge pipe 61 that connects the cold water tank 20 and the cold water coke 14, and a hot water discharge pipe 63 that connects the hot water tank 30 and the hot water coke 13. The cold water stored in the cold water tank 20 is discharged to the outside through the cold water discharge pipe 61 and the cold water coke 14 in sequence, and the hot water stored in the hot water tank 30 is discharged to the outside through the hot water discharge pipe 63 and the hot water coke 13 in order. .

  The cold water tank 20 is accommodated in the main body 10 and can store cold water. The cold water tank 20 is supplied with water from the outside through the water supply unit and can discharge water to the outside through the cold water discharge pipe 61.

  For example, the cold water tank may be a stainless steel tank. Thereby, the weight of the cold water tank 20 can be reduced, and the oxidation action on the surface can be prevented. Moreover, the inside of the cold water tank 20 is sterilized uniformly because the ultraviolet rays emitted from the sterilization apparatus 100 described later are easily reflected on the inner surface of the cold water tank 20.

  The cold water tank 20 includes a cooling unit for cooling the water stored in the cold water tank 20. The cooling unit can cool the water stored in the cold water tank 20 and adjust the cold water discharged through the cold water coke 14 to maintain a constant temperature.

  In one embodiment, the cooling unit cools water inside the cold water tank 20 using a refrigerant pipe (not shown) through which the refrigerant circulates, a compressor 81 for cooling the refrigerant, and the cooled refrigerant. And a heat insulating member 85 surrounding the outer peripheral surface of the cold water tank 20. The compressor 81 can cool the refrigerant through heat exchange with external air, and the evaporator 83 can cool the water in the cold water tank 20 using the cooled refrigerant. Further, the heat insulating member 85 can block heat intrusion into the cold water tank 20 and prevent heat loss. For example, the heat insulating member may include a styrofoam.

  The chiller / heater according to the present invention may further include a separation unit 90 installed in the chilled water tank 20. The separation unit 90 may include a separation plate 91 that divides the internal space of the cold water tank 20 into upper and lower portions, and a connection pipe 93 that extends downward through the center of the separation plate 91 and communicates with the third water supply pipe 55. . For example, the separation plate may have a disk shape, and the connecting pipe may have a cylinder shape that penetrates the separation plate.

  The cold water tank 20 is separated into an upper room temperature water region and a lower cold water region with reference to the separation plate 91. The room temperature water region can store room temperature water supplied through the second water supply pipe 53, and the cold water region can store relatively low temperature cold water cooled by the evaporator 83. The normal temperature water in the normal temperature water region is supplied to the hot water tank 30 through the connecting pipe 93 and the third water supply pipe 55. As a result, the energy required to heat the water in the hot water tank 30 can be saved.

  The hot water tank 30 is accommodated inside the main body 10 and disposed at a position lower than the cold water tank 20. The hot water tank 30 is supplied with water from the cold water tank 20 and can discharge water to the outside through the hot water outlet pipe 63. The hot water tank 30 includes a heating unit for heating water stored in the hot water tank 30.

  The heating unit can heat the water stored in the hot water tank 30 and adjust the hot water discharged through the hot water coke 13 to maintain a constant temperature. For example, the heating unit may be a heater. The heater can be installed outside the hot water tank 30 to transmit heat to the hot water tank 30, or can be installed inside the hot water tank 30 to directly heat the water.

  Meanwhile, the cooling unit and the heating unit can operate independently of each other. That is, only the heating unit may be driven in a state where the driving of the cooling unit is stopped, or the operation can be performed in the opposite situation.

  The sterilizer 100 is installed inside the cold water tank 20. 3 and 4 show the sterilizer 100 installed on the bottom surface 21 of the cold water tank 20, this is not restrictive, and it can be installed at various positions as required. For example, the sterilizer may be installed on the side wall or the upper surface inside the cold water tank 20. However, when the sterilizer 100 is installed on the upper surface of the cold water tank 20, the ultraviolet rays emitted from the sterilizer 100 may be separated by the separation unit 90 and may not be uniformly reflected inside the cold water tank 20. is there. Therefore, the maximum sterilization effect can be obtained when the sterilizer 100 is installed on the bottom surface 21 of the cold water tank 20, that is, below the separation unit 90.

  Hereinafter, the sterilizer 100 will be described in more detail with reference to FIGS. 4 to 6.

  4 and 5 are cross-sectional perspective views showing the sterilizer of FIG. FIG. 6 is an exploded view showing the sterilizer of FIG.

  4 to 6, the sterilizer 100 includes a fixed part 110 fixed to the bottom surface of the cold water tank 20, a lower body 120 connected to the fixed part 110, and an upper body 130 connected to the upper part of the lower body 130. A light emitting unit 140 installed in the lower body 120 to emit ultraviolet light; a diffusion unit 150 installed in the upper body 130 to convert ultraviolet light emitted from the light emitting unit 140 into a surface light source; A sealing unit 160 and a power supply unit 170 for supplying power to the light emitting unit 140 are included.

  The fixing unit 110 is installed under the separation plate 91 of the separation unit 90. Specifically, the fixing part 110 penetrates the bottom surface 21 below the separation plate 91 of the cold water tank 20, and at least a part thereof protrudes above the bottom surface 21. A lower body 120 is detachably coupled to the protruding portion. In addition, a hollow is formed in the fixed part 110, and the power supply unit 170 can supply power to the light emitting unit 140 through the hollow. For example, the fixed portion has a cylinder shape, and a screw is formed on the outer peripheral surface of the protruding portion.

  The lower body 120 is detachably attached to the protruding portion of the fixing part 110, and can accommodate the light emitting part 140 therein.

  The lower body 120 includes a first coupling part 121 coupled to the fixing part 110, a second coupling part 123 extending upward from the upper end of the first coupling part 121 and coupled to the upper body 130, and the first coupling part 121. A support portion 125 that extends radially outward from the upper end to support the upper body 130, and a lower rib 127 that extends downward from the support portion 125.

  The first coupling part 121 is detachably attached to the outer peripheral surface of the fixing part 110. For example, the first coupling part has a cylindrical shape, and a screw is formed on the inner peripheral surface. That is, the first coupling part 121 is fastened to the fixing part 110 by screwing.

  The second coupling part 123 extends upward from the first coupling part 121 and is detachably mounted on the inner peripheral surface of the upper body 130. For example, the second coupling part has a cylindrical shape, and a screw is formed on the outer peripheral surface. That is, the second coupling part 123 is fastened to the upper body 130 by screwing.

  The second coupling part 123 can accommodate the light emitting part 140 therein. 3 to 5 illustrate that the light emitting unit 140 is fitted to the upper portion of the second coupling unit 123, but is not limited thereto. For example, a recess may be formed in the circumferential direction on the inner peripheral surface of the second coupling part 123, and the light emitting unit 140 may be accommodated in the recess.

  The support part 125 is formed to extend radially outward from the first coupling part 121 and contacts the bottom surface of the upper body 130. Meanwhile, a second sealing member 163, which will be described later, may be further interposed between the support part 125 and the upper body 130. In this case, the support part 125 and the upper body 130 are interposed via the second sealing member 163. Can contact indirectly.

  The lower rib 127 extends downward from the support part 125 and is formed in a ring shape separated from the first coupling part 121 by a predetermined distance. As a result, an empty space surrounded by the first coupling portion 121, the support portion 125, and the lower rib 127 is formed. Due to the existence of the space, the material cost required when the lower body 120 is manufactured can be reduced. However, this may reduce the rigidity of the lower body 120, but the lowering of the rigidity can be prevented by forming the lower rib 127.

  In one embodiment, the lower rib 127 may not contact the bottom surface 21 of the cold water tank 20. That is, a gap may be formed between the end portion of the lower rib 127 and the bottom surface 21 of the cold water tank 20. By forming the gap as described above, water can freely enter and leave the space surrounded by the first coupling portion 121, the support portion 125, and the lower rib 127. As a result, it is possible to prevent water scale from being generated between the lower body 120 and the bottom surface 21 of the cold water tank 20. Meanwhile, the size (d) of the gap may be variously set according to need.

  The upper body 130 is detachably attached to the second coupling part 123 of the lower body 120 and accommodates the diffusion part 150 therein. In addition, an opening 135 for supplying ultraviolet rays emitted from the light emitting unit 140 inside the cold water tank 20 is formed in the upper portion of the upper body 130.

  The upper body 130 includes a third coupling part 131 coupled to the second coupling part 123 and an upper rib 133 extending radially inward from the upper end of the third coupling part 131.

  The third coupling part 131 is detachably attached to the outer peripheral surface of the second coupling part 123. For example, the third coupling part has a cylindrical shape, and a screw is formed on the inner peripheral surface. That is, the third coupling part 131 is fastened to the second coupling part 123 by screwing. Since the third coupling part 131 is completely coupled to the second coupling part 123, the bottom surface of the third coupling part 131 is supported by being in contact with the support part 125.

  The third coupling part 131 can accommodate the diffusion part 150 therein. 3 to 5 illustrate that the diffusion part 150 indirectly contacts the inner peripheral surface of the third coupling part 131 through the third sealing member 165, but the present invention is not limited thereto. Absent. For example, the third sealing member 165 may be formed between the upper surface of the diffusion part 150 and the bottom surface of the upper rib 133, and the diffusion part 150 may be in direct contact with the inner peripheral surface of the third coupling part 131. In this case, a recess may be formed in the circumferential direction on the inner peripheral surface of the third coupling part 131, and the diffusion part 150 may be accommodated in the recess.

  The upper rib 133 is formed to extend radially inward from the third coupling part 131, and forms an opening 135 for supplying ultraviolet rays emitted from the light emitting part 140 to the inside of the cold water tank 20. For example, the upper rib may be a donut-shaped disk. The ultraviolet rays emitted from the light emitting unit 140 are supplied into the cold water tank 20 through the opening 135.

  The light emitting unit 140 is disposed in the lower body 120, more specifically, in the second coupling unit 123, and can emit ultraviolet rays for sterilizing the inside of the cold water tank 20 and the water contained therein. .

  The light emitting unit 140 may include a substrate 141 accommodated in the second coupling unit 123 and at least one ultraviolet light emitting diode (UVLED) 143 disposed on the upper surface of the substrate 141.

  The substrate 141 may be, for example, a printed circuit board (PCB). The shape of the substrate 141 may correspond to the shape of the second coupling part 123 of the lower body 120. For example, when the second coupling part 123 is formed in a cylinder shape, the substrate 141 may have a disk shape. In contrast, when the second coupling portion 123 has a polygonal shape, the substrate 141 may also be formed in a polygonal shape corresponding thereto.

  The ultraviolet light emitting diode 143 is bonded to the upper surface of the substrate 141 and emits ultraviolet light. For example, the ultraviolet light emitting diode emits ultraviolet light having a wavelength of 250 nm to 280 nm, which has a strong sterilizing power. Bacteria contained in the cold water tank 20 and the water stored in the cold water tank 20 can be removed by releasing the ultraviolet rays into the cold water tank 20, and bacterial growth in the cold water tank 20 can be suppressed. In this case, the number of the ultraviolet light emitting diodes 143 disposed on the upper surface of the substrate 141 can be determined so as to have an output sufficient to sterilize the inside of the cold water tank 20.

  Meanwhile, power for operating the ultraviolet light emitting diode 143 is supplied from the outside through the power supply unit 170. At this time, the power supply unit 170 can supply power to the light emitting unit 140 through a hollow formed in the fixed unit 110. For example, the power supply unit 170 may be a wiring connected to an external power source.

  On the other hand, since the ultraviolet light emitting diode 143 is a point light source, there is a possibility that ultraviolet rays cannot be uniformly emitted into the cold water tank 20. Further, the ultraviolet light emitting diode 143 may be damaged when in direct contact with water. In this case, by installing the diffusing unit 150 on the light emitting unit 140, the uniformity of the emitted ultraviolet light can be improved, and the light emitting unit 140 can be prevented from coming into direct contact with water.

  The diffusing unit 150 is disposed on the light emitting unit 140 and can uniformly disperse the ultraviolet rays emitted from the light emitting unit 140. For example, the diffusion unit may be a light guide plate (LGP). The ultraviolet light emitted from the ultraviolet light emitting diode 143 in the form of a point light source is converted into a surface light source through the diffusion unit 150 and is uniformly supplied into the cold water tank 20. For example, the diffusion part may include quartz, glass, special acrylic for ultraviolet rays, and the like.

  Ultraviolet light emitted from the ultraviolet light emitting diode 143 is supplied into the cold water tank 20 through the diffusion part 150 and the opening 135 formed in the upper body 130 in order.

  The upper surface of the diffusion unit 150 is in direct contact with the water inside the cold water tank 20, and the bottom surface is opposed to the light emitting unit 140. The side surface of the diffusing unit 150 is in contact with the upper body 130 and the airtightness between the diffusing unit 150 and the upper body 130 is maintained by a third sealing member 165 described later. Accordingly, the diffusion unit 150 can prevent the water in the cold water tank 20 from penetrating into the sterilizer 100 and prevent the light emitting unit 140 from coming into contact with water.

  The shape of the diffusion part 150 corresponds to the shape of the third coupling part 131 of the upper body 130. For example, when the third coupling part 131 is formed in a cylinder shape, the diffusion part 150 may have a disk shape. In contrast, when the third coupling part 131 has a polygonal shape, the diffusion part 150 may also be formed in a polygonal shape corresponding thereto.

  3 to 5 illustrate that the light emitting unit 140 is disposed in the lower body 120 and the diffusion unit 150 is disposed in the upper body 130. However, the present invention is not limited thereto. The arrangement of the light emitting unit 140 and the diffusing unit 150 can be variously changed as necessary. For example, the light emitting unit 140 and the diffusing unit 150 may all be disposed inside the lower body 120. In contrast, the light emitting unit 140 and the diffusing unit 150 may all be disposed inside the upper body 130.

  The sealing unit 160 may prevent water stored in the cold water tank 20 from penetrating into the sterilizer 100. Specifically, the fixing part 110 penetrates the bottom surface 21 of the cold water tank 20 so that the water stored in the cold water tank 20 flows out to the outside. In addition, the ultraviolet light emitting diode 143 of the light emitting unit 140 may be damaged if it comes into direct contact with water. The sealing unit 160 can prevent the ultraviolet light emitting diode 143 from coming into contact with water and prevent the water in the cold water tank 20 from flowing out.

  The sealing part 160 covers the upper surface of the fixing part 110 and contacts the inner peripheral surface of the lower body 120, a second sealing member 163 disposed between the lower body 120 and the upper body 130, and A third sealing member 165 is disposed between the upper body 130 and the diffusion part 150. For example, the first to third sealing members may include rubber.

  The first sealing member 161 is a cylinder-shaped sealing body 161 a inserted into the fixing part 110, and extends radially outward from the upper end of the sealing body 161 a to cover the upper surface of the fixing part 110 and cover the inner surface of the lower body 120. The sealing rib 161b which contacts a surrounding surface is included. For example, the first sealing member may have a “T” -shaped cross section.

  The power supply unit 170 is connected to the light emitting unit 140 through a hollow formed in the sealing body 161a. The sealing rib 161 b covers the upper surface of the fixing part 110 and contacts the inner peripheral surface of the first coupling part 121 of the lower body 120. Accordingly, the first sealing member 161 can prevent water from penetrating through the space between the first coupling part 121 and the bottom surface 21 of the cold water tank 20.

  The second sealing member 163 is interposed between the lower body 120 and the upper body 130. Specifically, the bottom surface of the second sealing member 163 may be in contact with the top surface of the support part 125 of the lower body 120, and the top surface may be in contact with the bottom surface of the third coupling part 131 of the upper body 130. For example, the second sealing member may have a ring shape.

  The second sealing member 163 can prevent water from penetrating through the coupling surface between the lower body 120 and the upper body 130, thereby preventing the ultraviolet light emitting diode 143 from being damaged by water immersion.

  The third sealing member 165 is interposed between the upper body 130 and the diffusion part 150. Specifically, the outer peripheral surface of the third sealing member 165 contacts the inner peripheral surface of the upper body 130, and the inner peripheral surface surrounds the outer peripheral surface of the diffusion part 150. For example, the third sealing member may have a ring shape as a whole, and a cross section of the third sealing member may have a “U” shape.

  The third sealing member 165 can prevent water from penetrating through the space between the upper body 130 and the diffusion unit 150, thereby preventing the ultraviolet light emitting diode 143 from being damaged due to water immersion.

  3 to 5, the upper surface of the third sealing member 165 is in contact with the bottom surface of the upper rib 133 of the upper body 130, and the bottom surface is the upper surface of the substrate 141 of the light emitting unit 140 and the second coupling part 123 of the lower body 120. It is shown as contacting the top surface. In this case, the effect of preventing water from penetrating through the space between the upper body 130 and the diffusion part 150 can be maximized, but the size or shape of the third sealing member 165 is not necessarily limited to such a form. Is not limited. That is, it is sufficient that the third sealing member 165 is interposed between the third coupling portion 131 and the diffusion portion 150 of the upper body 130, and the upper surface and the bottom surface of the third sealing member 165 are the upper rib 133 and the substrate 141, respectively. There may be no contact.

  As described above, the chiller / heater according to the exemplary embodiment includes the sterilizer 100 that emits ultraviolet rays inside the chilled water tank 20, so that the chilled water tank 20 can be sterilized and disinfected. Thereby, the cleanliness of the water heater can be improved, which can suppress bacterial growth inside the cold water tank 20.

DESCRIPTION OF SYMBOLS 10 Main body 11 Hot water lever 12 Cold water lever 13 Hot water coke 14 Cold water coke 15 Hot water button 17 Tray 20 Cold water tank 21 Bottom surface 30 Hot water tank 40 Filter 51 1st water supply pipe 53 2nd water supply pipe 55 3rd water supply pipe 61 Cold water discharge pipe 63 Hot water Drain pipe 81 Compressor 83 Evaporator 85 Heat insulation member 90 Separation part 91 Separation plate 93 Connection pipe 100 Sterilizer 110 Fixing part 120 Lower body 121 First coupling part 123 Second coupling part 125 Support part 127 Lower rib 130 Upper body 131 First 3 coupling portion 133 upper rib 140 light emitting portion 141 substrate 143 ultraviolet light emitting diode 150 diffusion portion 160 sealing portion 161 first sealing member 161a sealing body 161b sealing rib 163 second sealing member 165 third sealing portion 170 power supply

Claims (12)

A hot water tank in which hot water is stored;
A cold water tank disposed at the top of the hot water tank to store cold water;
A separation plate that is installed inside the cold water tank, and separates the inside of the cold water tank vertically into a room temperature water region and a cold water region;
A sterilizer installed below the separation plate inside the cold water tank and emitting ultraviolet rays inside the cold water tank;
The sterilizer is
A fixing portion that penetrates the bottom surface of the cold water tank and protrudes at least partially on the bottom surface;
A body that is detachably attached to the protruding portion of the fixed portion and has an opening formed at the top;
A chiller / heater including a light emitting unit installed inside the body and emitting ultraviolet rays into the cold water tank through the opening of the body;   The chiller / heater according to claim 1, wherein the cold water tank is a stainless steel bowl. The fixing part is a cylinder shape in which a hollow is formed,
The light emitting unit
A substrate housed in the body;
Including at least one ultraviolet light emitting diode (UV LED) disposed on the upper surface of the substrate and emitting ultraviolet rays upon receiving power from the outside;
The chiller / heater according to claim 1, wherein the ultraviolet light emitting diode is supplied with electric power from outside through the hollow of the fixed part. A diffusion unit disposed on the light emitting unit in the body and further uniformly dispersing ultraviolet rays emitted from the light emitting unit;
The chiller / heater according to claim 1, wherein the diffusion part includes quartz. The body is
A lower body that is detachably attached to the fixed portion and accommodates the light emitting portion therein;
An upper body that is detachably attached to the lower body, accommodates the diffusion portion therein, and has an upper portion formed with an opening for supplying ultraviolet light emitted from the light emitting portion to the inside of the cold water tank. The water cooler / heater according to claim 4.   6. The water heater according to claim 5, wherein the lower body is fastened to the fixing part and the upper body by screwing. The lower body is
A first coupling part coupled to the fixed part;
A second coupling part extending upward from an upper end of the first coupling part and coupled to the upper body, and accommodating the light emitting part therein;
A support portion extending radially outward from an upper end of the first coupling portion to support the upper body;
The chiller / heater according to claim 5, further comprising a lower rib extending downward from the support portion to improve rigidity of the lower body.   The water heater according to claim 7, wherein a gap is formed between a bottom surface of the cold water tank and an end portion of the lower rib. The upper body is
A third coupling part that is detachably attached to the second coupling part and accommodates the diffusion part therein;
And an upper rib extending radially inward from an upper end of the third coupling part and forming an opening for supplying ultraviolet rays emitted from the light emitting part to the inside of the cold water tank. Item 8. The water heater according to item 7. A sealing unit for preventing water stored in the cold water tank from penetrating into the sterilizer;
The sealing part is
A first sealing member that covers an upper surface of the fixing portion and contacts an inner peripheral surface of the lower body;
A second sealing member disposed between the lower body and the upper body;
The water heater according to claim 5, further comprising a third sealing member disposed between the upper body and the diffusion part. The first sealing member is
A sealing body inserted into the fixed part;
The sealing rib according to claim 10, further comprising a sealing rib extending radially outward from an upper end of the sealing body and covering an upper surface of the fixing portion and contacting an inner peripheral surface of the lower body. Water heater / cooler.   The cold / hot water according to claim 10, wherein an outer peripheral surface of the third sealing member is in contact with an inner peripheral surface of the third coupling portion, and the inner peripheral surface surrounds an outer peripheral surface of the diffusion portion. vessel.