KR20190096480A - Water purifier having enhanced fuse structure - Google Patents

Abstract

The present invention relates to a water purifier having an improved fuse structure. In addition, according to one embodiment of the present invention, the water purifier includes: a working coil formed by a leading wire wound in a ring shape; a hot water tank provided to face the working coil at a position of being spaced apart from the working coil and induced and heated by the working coil so as to heat liquid passing through an inner space; a bracket coupled to the hot water tank while placing the working coil therebetween; a fuse receiving unit provided on the bracket so as to protrude through the inside of the ring shape; a fuse inserted into the fuse receiving unit and operating when the liquid in the hot water tank is overheated; and a fuse cover formed to surround the fuse for thermal balance of the fuse and inserted between the fuse and the fuse receiving unit.

Description

Water purifier with improved fuse structure {WATER PURIFIER HAVING ENHANCED FUSE STRUCTURE}

The present invention relates to a water purifier with an improved fuse structure.

In general, the water purifier is a device for converting the safe and sanitary drinking water by filtering various harmful components contained in the raw water such as tap water or ground water by the filter of the various stages installed inside the main body.

The water purifier is a device for forming a cold water flow path, a hot water flow path and a purified water flow path such that the purified water that has passed through the filter can be supplied to the water outlet according to a user's selection, and controls the flow of water with a mechanical or electronic valve. .

The water purifier may be divided into a water storage tank type and a direct water type according to whether the water purifier includes a water storage tank. The reservoir water purifier is configured to store the purified water in the reservoir and to provide the purified water stored in the reservoir when the user manipulates the outlet.

In contrast, the direct type water purifier does not have a water tank, and when the user manipulates the water outlet, the raw water is immediately filtered to provide purified water to the user.

Direct type water purifiers have been recognized to be hygienic and water-saving compared to reservoir type water purifiers, and in recent years, users' preference for direct type water purifiers has increased.

In addition to room temperature, water purifiers also provide hot and cold water. The water purifier for providing hot water and cold water has a heating device and a cooling device therein. The heating device is adapted to heat the purified water to produce hot water, and the cooling device is adapted to cool the purified water to produce cold water.

Direct water purifiers must be able to heat or cool the purified water in a short time to provide hot or cold water. There can be several ways in which the heating device heats the purified water in a short time.

For example, the Republic of Korea Patent Publication No. 10-0817832 (2008.03.31.) Discloses a configuration for heating the purified water using a planar heating heater. In addition, the Republic of Korea Patent Publication No. 10-2005-0103723 (2005.11.01.) Discloses a configuration for heating the purified water by the induction heating method.

Induction heating refers to a method of heating a heating target object using electromagnetic induction. When a current is supplied to the coil, an eddy current is generated in the heated object, and Joule heating generated by the resistance of the metal increases the temperature of the heated object.

Here, referring to Figures 1 and 2, there is shown a conventional water purifier for heating the purified water by the induction heating method, with reference to this, to look at the conventional water purifier.

1 is an exploded perspective view of a coil assembly provided in a conventional water purifier, and FIG. 2 is a schematic view illustrating a state in which a fuse is inserted into a fuse accommodating part of FIG. 1.

As shown in FIG. 1 and FIG. 2, the conventional water purifier has a working coil 1140, a hot water tank 1130 induction heated by the working coil 1140, and a hot water tank 1130 with the working coil 1140 interposed therebetween. ) Is coupled to the bracket 1160 to cover the bracket 1160, the fuse receiving portion 1166 provided in the bracket 1160, the fuse 1182 inserted into the fuse receiving portion 1166, the fuse 1118 A silicon cover 1183.

Here, the fuse 1182 is a safety component, and may operate when the product temperature rises abnormally to be above a preset temperature to cut off the power supply. For reference, the thermal equilibrium of the fuse 1182 is that the fuse 1182 does not operate when the surface temperature is above the preset temperature, but operates when the entire temperature of the fuse 1182 is above the preset temperature. Is an important issue related to the operational accuracy of

However, in the conventional water purifier, the portion surrounding the fuse 1182 (that is, the fuse accommodating part 1166) is formed of an injection molded product, and thus, a gap G between the fuse 1182 and the fuse accommodating part 1166 is defined. A gap was generated and an air layer was formed in the gap G.

For this reason, although the fuse 1182 was inserted into the fuse accommodating part 1166, there existed a problem that it was not fixed but rocked. In addition, due to the air layer formed in the gap G, there is a problem that the operating temperature variation (ie, the temperature spread or the temperature range) of the fuse 1182 becomes large, causing the product to ignite before the operation of the fuse 1182.

An object of the present invention is to provide a water purifier capable of preventing the shaking of the fuse.

Another object of the present invention is to provide a water purifier capable of reducing the operating temperature range of the fuse.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention, which are not mentioned above, can be understood by the following description, and more clearly by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

The water purifier according to the present invention may include a fuse cover formed between the fuse and the fuse accommodating part to surround the fuse to remove a gap generated when the fuse and the fuse accommodating part are coupled, thereby preventing the fuse from shaking. can do.

In addition, the water purifier according to the present invention is formed to surround the fuse, by including a fuse cover having an opening formed on one surface facing the hot water tank can prevent the heat transferred to the fuse from the hot water tank, through which the The operating temperature range can be reduced.

The water purifier according to the present invention can prevent the shaking of the fuse by removing a gap generated when the fuse and the fuse receiving portion are coupled through the fuse cover. Furthermore, by preventing the fuse from shaking, the possibility of the fuse being damaged or malfunctioning due to friction can be minimized.

In addition, the water purifier according to the present invention can reduce the operating temperature range of the fuse by preventing the heat transferred to the fuse from the hot water tank through the fuse cover. Furthermore, by reducing the operating temperature range of the fuse, it is possible to secure product stability by preventing the product (ie, the water purifier) from igniting before the fuse is operated.

In addition to the effects described above, the specific effects of the present invention will be described together with the following description of specifics for carrying out the invention.

1 is an exploded perspective view of a coil assembly provided in a conventional water purifier.
FIG. 2 is a schematic view illustrating a state in which a fuse is inserted into the fuse accommodating part of FIG. 1.
3 is a perspective view illustrating a water purifier according to an embodiment of the present invention.
4 is an exploded perspective view illustrating the internal configuration of the water purifier of FIG. 3.
FIG. 5 is a schematic diagram illustrating a flow path configuration of the water purifier of FIG. 3.
6 is an exploded perspective view illustrating the induction heating module and the control module of the water purifier of FIG. 3.
7 is an exploded perspective view illustrating some components of the induction heating module of FIG. 6.
FIG. 8 is an exploded perspective view illustrating components of the induction heating module of FIG. 6 which is not described in FIG. 7.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

3 is a perspective view illustrating a water purifier according to an embodiment of the present invention.

Referring to FIG. 3, the water purifier 1000 according to an embodiment of the present invention includes a cover 1010, a water extraction unit 1020, a base 1030, and a tray 1040.

The cover 1010 forms the exterior of the water purifier 1000. The appearance of the water purifier 1000 formed by the cover 1010 may be referred to as a main body of the water purifier 1000. Parts for filtering the raw water is installed inside the water purifier (1000) body. Cover 1010 wraps the components to protect them. The name of the cover 1010 may be renamed to a case or a housing. In any case, the cover 1010 described in the present invention corresponds to forming the exterior of the water purifier 1000 and surrounding components filtering the raw water.

The cover 1010 may be formed of a single part, but may be formed by combining several parts. For example, as shown in FIG. 3, the cover 1010 may include a front cover 1011, a rear cover 1014, a side panel 1013a, an upper cover 1012, and a top cover 1015.

The front cover 1011 is disposed in front of the water purifier 1000. The rear cover 1014 is disposed behind the water purifier 1000. Here, the front and rear of the water purifier 1000 are set based on the direction of looking at the water outlet 1020 in front of the user's eyes, respectively. However, since the concept of the front and rear of the water purifier 1000 is not absolute, it may vary depending on the manner in which the water purifier 1000 is described.

The side panels 1013a are disposed on the left and right sides of the water purifier 1000, respectively. The side panel 1013a is disposed between the front cover 1011 and the rear cover 1014. The side panel 1013a may be coupled to the front cover 1011 and the rear cover 1014, respectively. The side panel 1013a substantially forms the side of the water purifier 1000.

The upper cover 1012 is disposed in front of the water purifier 1000. The upper cover 1012 is installed at a position higher than the front cover 1011. The water outlet 1020 is exposed to a space between the upper cover 1012 and the front cover 1011. The upper cover 1012 together with the front cover 1011 forms an exterior of the front of the water purifier 1000.

The top cover 1015 forms an upper surface of the water purifier 1000. An input / output unit 1016 may be formed in front of the top cover 1015. The input / output unit 1016 is a concept including an input unit and an output unit. The input unit is configured to receive a user's control command. The manner in which the input unit receives the user's control command may include all of the touch input, the physical pressing, or the like. The output unit is provided to visually provide the state information of the water purifier 1000 to the user.

The water extraction unit (takeout unit or coke assembly 1020) serves to provide an integer to the user according to the user's control command. At least a portion of the water outlet 1020 is exposed to the outside of the water purifier 1000 body to supply water. Particularly, in the water purifier 1000 configured to provide room temperature purified water, cold water cooler than room temperature, and hot water hotter than room temperature, at least one of room temperature purified water, cold water, and hot water is discharged through the water extraction unit 1020 according to a control command received from the user. Can be.

The water extraction unit 1020 may be configured to be rotatable according to a user's manipulation. The front cover 1011 and the upper cover 1012 form a rotation region of the water extraction portion 1020 therebetween, and the water extraction portion 1020 may be rotated left and right in the rotation region. Rotation of the water extraction unit 1020 may be made by a force physically applied to the water extraction unit 1020. In addition, the water extraction unit 1020 may be rotated based on a control command applied by the user to the input / output unit 1016. The configuration for implementing the rotation of the water extraction unit 1020 may be installed in the water purifier 1000, specifically, may be installed in the area covered by the upper cover 1012. In addition, the input / output unit 1016 may be implemented to rotate together with the water extraction unit 1020 when the water extraction unit 1020 is rotated.

The base 1030 forms the bottom of the water purifier 1000. Internal parts of the water purifier 1000 are supported by the base 1030. When the water purifier 1000 is placed on the floor or a shelf, the base 1030 faces the floor or the shelf. Therefore, when the water purifier 1000 is placed on a floor or a shelf, the structure of the base 1030 is not exposed to the outside.

The tray 1040 is disposed to face the water outlet 1020. Based on the case where the water purifier 1000 is installed as shown in FIG. 3, the tray 1040 faces the water outlet 1020 in the vertical direction. The tray 1040 is formed to support a container or the like for containing purified water discharged through the water extraction unit 1020. In addition, the tray 1040 is formed to accommodate the remaining water falling from the water outlet 1020. When the tray 1040 receives and receives the remaining water falling from the water outlet 1020, the tray 1040 may prevent contamination of the remaining water around the water purifier 1000.

Since the tray 1040 needs to receive the remaining water falling from the water extraction unit 1020, the tray 1040 may also be implemented to rotate together with the water extraction unit 1020. The input / output unit 1016 and the tray 1040 may be implemented to rotate in the same direction as the water extraction unit 1020.

Next, with reference to FIG. 4, the internal structure of the water purifier 1000 of FIG. 3 is demonstrated.

4 is an exploded perspective view illustrating the internal configuration of the water purifier of FIG. 3.

Specifically, the filter unit 1060 is installed inside the front cover 1011. The filter unit 1060 is configured to filter the raw water supplied from the raw water supply unit to generate purified water. Since only one filter may be difficult to generate an integer suitable for a user to drink, the filter unit 1060 may include a plurality of unit filters 1061 and 1062. The unit filters 1061 and 1062 may be, for example, a prefilter such as a carbon block, an adsorption filter, a HEPA filter (High Efficiency Particulate Air filter), an UF filter (Ultra Filteration or Ultra Filteration filter), or the like. We include high-performance filter of. Although two unit filters 1061 and 1062 are installed in FIG. 4, the number of unit filters 1061 and 1062 may be expanded or reduced as necessary.

The plurality of unit filters 1061 and 1062 are connected in a predetermined order. The predetermined order means a suitable order for the filter unit 1060 to filter the water. Raw water may contain various foreign objects. Since large particles such as hair and dust cause deterioration of the filtration performance of high performance filters such as HEPA filters and UF filters, the high performance filters should be protected from large particles such as hair and dust. Therefore, in order to protect the high performance filters, a pre filter must be installed upstream of the high performance filters.

The prefilter is adapted to remove large particles from the water. If the pre-filter is disposed upstream of the high performance filters to remove the large particles contained in the raw water first, the high performance filters can be protected since the raw water that does not contain the large particles is supplied to the high performance filter. The raw water passing through the prefilter is then filtered by a HEPA filter, an UF filter, or the like.

The integer generated by the filter unit 1060 may be directly provided to the user through the water extraction unit 1020. In this case, the temperature of the purified water provided to the user corresponds to room temperature. Alternatively, the purified water generated by the filter unit 1060 may be heated by the induction heating module 1100 or cooled by the cold water tank assembly 1200.

The filter bracket assembly 1070 is a structure for fixing the unit filters 1061 and 1062 of the filter unit 1060 and fixing components such as water discharge passages, valves, and sensors such as purified water and cold water.

The bottom 1071 of the filter bracket assembly 1070 is coupled with the tray 1040. The bottom 1071 of the filter bracket assembly 1070 is formed to receive the protruding engagement portion 1041 of the tray 1040. As the protruding coupling portion 1041 of the tray 1040 is inserted into the lower portion 1071 of the filter bracket assembly 1070, the filter bracket assembly 1070 and the tray 1040 are engaged.

The bottom 1071 of the filter bracket assembly 1070 and the tray 1040 have curved surfaces corresponding to each other. The bottom 1071 of the filter bracket assembly 1070 can be rotated independently of the rest of the filter bracket assembly 1070.

The upper portion 1072 of the filter bracket assembly 1070 is made to support the water outlet 1020. The upper portion 1072 of the filter bracket assembly 1070 defines the rotation path of the outlet portion 1020. The water extraction unit 1020 may be divided into a blowout cock portion 1021 protruding to the outside of the water purifier 1000 and a rotating portion 1022 disposed inside the water purifier 1000. Rotating portion 1022 may be formed in a circular shape for rotation as shown in FIG. The rotating portion 1022 is mounted to the upper portion 1072 of the filter bracket assembly 1070. The water outlet 1020 mounted on the upper portion 1072 of the filter bracket assembly 1070 is configured to rotate relative to the filter bracket assembly 1070.

The bottom 1071 and the top 1072 of the filter bracket assembly 1070 may be connected to each other by the vertical connection 1073. The lower portion 1071 and the upper portion 1072 of the filter bracket assembly 1070 connected to each other by the vertical connecting portion 1073 may be rotated in the same direction. If the user rotates the water outlet 1020, the upper portion 1072, the upper and lower connecting portions 1073, the lower portion 1071, and the tray 1040 of the filter bracket assembly 1070 connected to the water extraction portion 1020 are discharged portions. Can be rotated with 1020.

A filter installation region 1074 is formed between the lower 1071 and the upper 1072 of the filter bracket assembly 1070 to receive the unit filters 1061 and 1062 of the filter unit 1060. The filter installation area 1074 provides an installation space for the unit filters 1061 and 1062.

On the opposite side of the filter installation region 1074, a support 1075 protruding toward the rear of the water purifier 1000 is formed. The support 1075 is made to support the control module 1080 and the induction heating module 1100. The control module 1080 and the induction heating module 1100 are mounted on the support 1075. The support 1075 is disposed between the induction heating module 1100 and the compressor 1051 to block heat generated in the induction heating module 1100 from being conducted to the compressor 1051 or the like.

The control module 1080 is adapted to implement overall control of the water purifier 1000. The control module 1080 may include various printed circuit boards for controlling the operation of the water purifier 1000.

The induction heating module 1100 generates hot water by heating the purified water generated by the filter unit 1060. Induction heating module 1100 has components that can heat the purified water in an induction heating method. The induction heating module 1100 receives purified water from the filter unit 1060, and the hot water generated in the induction heating module 1100 is discharged through the water extraction unit 1020.

Induction heating module 1100 may include a printed circuit board for controlling the generation of hot water. A protective cover 1161 may be coupled to one side of the induction heating module 1100 to prevent water from penetrating into the printed circuit board and to protect the printed circuit board in the event of a fire.

Refrigeration cycle apparatus 1050 produces cold water. The refrigeration cycle device 1050 refers to a set of devices in which the compression-condensation-expansion-evaporation process of the refrigerant occurs continuously. In order to generate cold water in the cold water tank assembly 1200, the refrigeration cycle apparatus 1050 must first operate to bring the coolant filled in the cold water tank assembly 1200 to a low temperature.

Refrigeration cycle apparatus 1050 includes a compressor 1051, a condenser 1052, a capillary 1053, an evaporator (not shown, disposed inside the cold water tank assembly), a dryer 1055, and a refrigerant flow path connecting them to each other. . The refrigerant passage may be formed by a pipe or the like, and the refrigerant passage connects the compressor 1051, the condenser 1052, the capillary tube 1053, and the evaporator to form a circulation passage of the refrigerant.

The compressor 1051 compresses the refrigerant. The compressor 1051 is connected to the condenser 1052 by a refrigerant passage, and the refrigerant compressed in the compressor 1051 flows to the condenser 1052 through the refrigerant passage. The compressor 1051 may be disposed under the support 1075 and installed to be supported by the base 1030.

Condenser 1052 condenses the refrigerant. The refrigerant compressed by the compressor 1051 flows into the condenser 1052 through the refrigerant passage, and is condensed by the condenser 1052. The refrigerant condensed in the condenser 1052 flows to the dryer 1055 through the refrigerant passage.

Dryer 1055 removes moisture from the refrigerant. In order to improve the efficiency of the refrigeration cycle apparatus 1050, water must be removed from the capillary 1053 and the refrigerant to be introduced into the evaporator. The dryer 1055 is installed between the condenser 1052 and the capillary 1053, and removes moisture from the refrigerant to improve the efficiency of the refrigeration cycle device 1050.

Expansion of the refrigerant is implemented by capillary tube 1053. The capillary tube 1053 is formed to expand the refrigerant, and the throttling valve or the like may form an expansion device instead of the capillary tube 1053 according to the design. Capillary tube 1053 may be wound in a coil form to secure a sufficient length in a narrow space.

The evaporator evaporates the refrigerant and is installed inside the cold water tank assembly 1200. The cooling water filled inside the cold water tank assembly 1200 and the refrigerant of the refrigerating cycle apparatus 1050 exchange heat with each other by an evaporator, and the cooling water may be kept at a low temperature by heat exchange. The purified water may be cooled by the cooling water maintained at a low temperature.

The refrigerant heated by heat exchange with the cooling water in the evaporator is returned to the compressor 1051 again along the refrigerant passage, and continuously circulates through the refrigeration cycle apparatus 1050.

The base 1030 supports the compressor 1051, the front cover 1011, the rear cover 1014, both side panels 1013a and 1013b, the filter bracket assembly 1070, the condenser 1052 and the fan 1033, and the like. It is formed to. The base 1030 preferably has a high stiffness to support these components.

The condenser 1052 and the fan 1033 may be installed at the rear side of the water purifier 1000, and the continuous circulation of air is required for the heat dissipation of the condenser 1052. An inlet 1034 may be formed at the bottom of the base 1030 to circulate air. The air sucked through the inlet port 1034 is caused to flow by the fan 1033. Air flows toward the condenser 1052 to achieve air cooled cooling. In the base 1030, the duct structure 1032 surrounding the fan 1033 and the condenser 1052 may be fixed to increase the heat radiation efficiency of the condenser 1052.

A drain 1035 is installed behind the duct structure 1032. The drain 1035 is exposed to the outside of the water purifier 1000 to form a drain flow path. Since all of the internal flow paths of the water purifier 1000 pass through, even if the drain 1035 is connected to only one of the internal flow paths, all of the fluid present in the internal flow paths may be discharged through the drain 1035.

A pedestal 1031 supporting the cold water tank assembly 1200 may be installed at an upper portion of the condenser 1052. The pedestal 1031 has a first hole 1031a at the rear side, and the rear cover 1014 has a second hole 1014a. The first hole 1031a and the second hole 1014a are formed at positions corresponding to each other. The first hole 1031a and the second hole 1014a are for disposing a drain valve for draining the coolant filled in the cold water tank assembly 1200.

The cold water tank assembly 1200 is formed to receive the coolant therein. The cold water tank assembly 1200 is supplied with purified water generated by the filter unit 1060. In particular, in the case of the direct type water purifier 1000 having no separate water tank, the cold water tank assembly 1200 may be supplied with purified water directly from the filter unit 1060.

The temperature of the coolant filled in the cold water tank assembly 1200 is lowered by the operation of the refrigeration cycle apparatus 1050. The cold water tank assembly 1200 is configured to cool the purified water with the coolant to form cold water.

Since the cooling water is stored in the cold water tank assembly 1200 and does not circulate, the contamination of the cooling water increases after a long time. For hygiene, the coolant stored in the cold water tank assembly is periodically discharged to the outside, and the new coolant needs to be filled in the cold water tank assembly 1200.

Hereinafter, the flow path configuration of the water purifier 1000 of FIG. 3 will be described with reference to FIG. 5.

FIG. 5 is a schematic diagram illustrating a flow path configuration of the water purifier of FIG. 3. For reference, the solid line in FIG. 5 represents a flow path of water.

Specifically, the water flow path may be divided into a raw water line 1400 on the upstream side of the filter unit 1060 and a water purification line 1500 on the downstream side of the filter unit 1060 based on the filter unit 1060. Here, the upstream or downstream side is a division based on the flow of water.

The water supply valve 1312 is opened and closed based on a control command input through the input unit 1016 (see FIG. 3). When a control command for outputting purified water, hot water, or cold water is input through the input unit 1016, the water supply valve 1312 is opened, and raw water is supplied from the raw water supply unit 10 to the filter unit 1060.

Raw water passes through the pressure reducing valve 1311 in the process of being supplied to the filter unit 1060. The pressure reducing valve 1311 is installed between the raw water supply unit 10 and the filter unit 1060. The pressure reducing valve 1311 reduces the pressure of the raw water supplied from the raw water supply part 10.

Since the direct type water purifier 1000 does not include a water tank, the pressure of the purified water discharged through the water extraction unit 1020 is determined by the pressure of the raw water supplied from the raw water supply unit 10. In general, since the pressure of the raw water supplied from the raw water supply unit 10 is a high pressure, if there is no pressure reducing valve 1311, the water extraction unit 1020 is discharged at an excessively high pressure. In addition, the unit filters 1061 and 1062 of the filter unit 1060 may be physically damaged by the pressure of raw water. Therefore, pressure reduction of raw water is required.

The pressure reducing valve 1311 depressurizes the raw water supplied from the raw water supply unit 10 to the filter unit 1060. Accordingly, the filter unit 1060 may be protected, and the water extraction unit 1020 may be discharged at an appropriate pressure.

The raw water is filtered while sequentially passing through the unit filters 1061 and 1062 of the filter unit 1060. The water upstream of the filter unit 1060 may be named raw water, and the water downstream may be named an integer.

The purified water generated by the filter unit 1060 sequentially passes through the water supply valve 1312 and the flow rate sensor 1313. The flow rate sensor 1313 measures the flow rate supplied from the filter unit 1060. The flow rate measured by the flow sensor 1313 is used for control of the water purifier.

For example, when a control command for outputting a constant amount of purified water is input through the input unit 1016 of the water purifier 1000, a pulse value corresponding to the predetermined amount is input to the flow sensor 1313 by the control module 1080, and the control is performed. The water supply valve 1312 is opened by the control of the module 1080. When the constant of the flow rate corresponding to the pulse value passes through the flow sensor 1313, the control module 1080 receives feedback from the flow sensor 1313 to control the feed water valve 1312, and the feed water valve 1312. Is closed by the control of the control module 1080. Through this process, the flow rate measured by the flow sensor 1313 may be used to control the water purifier 1000.

The purified water line 1500 connected to the flow sensor 1313 is branched into two branches 1600 and 1700, and the branch line is sequentially connected to the flow regulating valve 1351 and the induction heating module 1100. This branch, which is sequentially connected to the flow control valve 1351 and the induction heating module 1100, may be referred to as a hot water line 1700. The other branch 1600 is provided with a check valve 1321, which branches back to the purified water line 1601 and the cold water line 1602 on the downstream side of the check valve 1321. The purified water outlet valve 1330 is installed in the purified water line 1601, and the chilled water discharge valve 1340 is installed in the cold water line 1602. The purified water line 1601 and the cold water line 1602 are once again joined together and connected to the water outlet 1020, and a check valve 1322 is installed in the joined flow path 1603.

The two check valves 1321 and 1322 installed at the upstream side and the downstream side of the purified water outlet valve 1330 and the cold water outlet valve 1340 are separated from each other by the first check valve 1321 and the second check valve 1322. Can be named. The first check valve 1321 and the second check valve 1322 are for preventing the generation of residual water.

When a control command for supplying hot water is input to the water purifier, the water supply valve 1312, the flow control valve 1351, and the hot water discharge valve 1353 are opened, and hot water is discharged through the hot water line 1700. In this process, the pressure inside the purified water line 1601 and the cold water line 1602 is lowered, which may cause the purified water discharge valve 1330 or the cold water discharge valve 1340 to open and close momentarily. In the structure in which the water extraction unit 1020 includes only one ejection coke and both cold water and hot water are discharged through the ejection coke, there is no problem of residual water. However, in a structure in which both cold water and hot water are discharged through two different takeout coke, a small amount of residual water may be discharged from the other takeout coke while hot water is discharged from one takeout coke.

However, when the first check valve 1321 is installed upstream of the branch point between the purified water line 1500 and the cold water line 1602, the pressure change formed during the hot water withdrawal process through the hot water line 1700 is changed to the purified water line ( 1601 and cold water line 1602 can be blocked. Accordingly, it is possible to prevent occurrence of the phenomenon in which the purified water discharge valve 1330 or the cold water discharge valve 1340 is momentarily opened and closed.

Comparing the configuration in which the cold water discharge valve 1340 is installed upstream of the cold water tank assembly 1200 and the configuration in which the cold water discharge valve 1340 is installed downstream of the cold water tank assembly 1200, the former is applied to the latter. You can get even more cold water. This is because the amount of cold water corresponding to the length of the flow path between the cold water tank assembly 1200 and the cold water outlet valve 1340 may be further supplied. Therefore, the cold water outlet valve 1340 is preferably installed upstream of the cold water tank assembly 1200 as shown. However, in the structure in which the cold water outlet valve 1340 is installed upstream of the cold water tank assembly 1200, residual water may occur in the cold water line 1602 due to a pressure change in the cold water line 1602, and a small amount may be generated even when the water is stopped. The residual amount of may be discharged through the water outlet 1020.

However, when the second check valve 1322 is installed in the confluence channel 1603 of the purified water line 1601 and the cold water line 1602, the change in pressure of the cold water line 1602 may be prevented from being transmitted to the water outlet 1020. . Accordingly, when the water extraction is stopped, it is possible to prevent the phenomenon that a small amount of residual water is discharged through the water extraction unit 1020.

The purified water passing through the flow sensor 1313 may be immediately supplied to the user in a state of normal temperature, or may be supplied to the user after the hot water or the cold water becomes.

The purified water discharge valve 1330 and the cold water discharge valve 1340 are opened and closed based on a control command input through the input unit 1016, respectively. When a control command for extracting purified water is input through the input unit 1016, the water supply valve 1312 and the purified water discharge valve 1330 are opened. The purified water generated by the filter unit 1060 is discharged to the water extraction unit 1020 through the water purification line 1601. Similarly, when a control command for outputting cold water is input through the input unit 1016, the water supply valve 1312 and the cold water discharge valve 1340 are opened. The purified water generated by the filter unit 1060 is introduced into the cold water tank assembly 1200 along the cold water line 1602 and cooled while passing through the cold water tank assembly 1200. The cold water generated in the cold water tank assembly 1200 is discharged through the water outlet 1020.

The drain valve 1280 is installed in the cold water tank assembly 1200, and the coolant filled in the cold water tank assembly 1200 may be discharged to the outside through the drain valve 1280.

The hot water line 1700 is provided with a flow control valve 1351. When a flow rate of more than an appropriate amount is introduced into the hot water tank 1130 (see FIG. 6), since sufficient heating may not be performed, it should always be adjusted so that only an appropriate amount of flow rate is introduced. The flow control valve 1351 is installed upstream of the induction heating module 1100 and is configured to adjust the flow rate of the purified water flowing into the hot water tank 1130 (see FIG. 6).

The thermistor 1352 may be installed together with the flow control valve 1351. The temperature of the purified water measured by the thermistor 1352 is utilized for the control of the induction heating module 1100. For example, if the temperature of the purified water measured by thermistor 1352 is relatively low, induction heating module 1100 may be operated at high power. Conversely, if the temperature of the purified water measured by thermistor 1352 is relatively high, induction heating module 1100 can be operated at low power.

The hot water discharge valve 1353 is installed downstream of the hot water tank 1130. When a control command for discharging hot water is input through the input unit 1016, the water supply valve 1312 and the hot water discharge valve 1353 are opened and the hot water is discharged along the hot water line 1700.

A safety valve 1360 may be installed in the flow path branched from the hot water line 1700. The safety valve 1360 is configured to operate by a pressure change formed in the flow path of water to pressure. When the flow path of the water purifier 1000 is overpressured such as the induction heating module 1100 operates abnormally, the safety valve 1360 is opened, and the purified water is drained through the drain 1035.

Here, referring to FIG. 6, the induction heating module 1100 and the control module 1080 of the water purifier 1000 of FIG. 3 will be described in more detail.

6 is an exploded perspective view illustrating the induction heating module and the control module of the water purifier of FIG. 3.

In detail, the induction heating module 1100 indicates a set of components that generate hot water by receiving purified water generated by the filter unit 1060 (see FIG. 4). In particular, in the case of a direct type water purifier (1000, see FIGS. 3 to 5) without a separate reservoir, the purified water may be supplied directly to the induction heating module 1100 from the filter unit 1060 (see FIG. 4) without passing through the reservoir. Can be.

The induction heating module 1100 includes an induction heating printed circuit board 1110, an induction heating printed circuit board cover 1121 and 1122, a hot water tank 1130, a working coil 1140, a bracket 1160, and a shield plate 1190. It includes.

The induction heating printed circuit board 1110 controls the induction heating operation of the working coil 1140. Both ends of the working coil 1140 are connected to the induction heating printed circuit board 1110 and controlled by the induction heating printed circuit board 1110. For example, when a user inputs a control command through the input unit 1016 of the water purifier 1000 (see FIGS. 3 and 4) to take out hot water, the purified water generated by the filter unit 1060 (see FIG. 4) is a hot water tank. Supplied to 1130. The induction heating printed circuit board 1110 controls the current to flow in the working coil 1140. The hot water tank 1130 is inductively heated by the current supplied to the working coil 1140. The purified water is heated instantaneously through the hot water tank 1130 to become hot water.

Induction heating printed circuit board covers 1121 and 1122 are formed to surround the induction heating printed circuit board 1110. Induction heating printed circuit board covers 1121 and 1122 include a first induction heating cover 1121 and a second induction heating cover 1122.

An induction heating printed circuit board 1110 is installed in an inner space formed by the first induction heating cover 1121 and the second induction heating cover 1122. The first induction heating cover 1121 and the second induction heating cover 1122 are coupled to each other so as to prevent penetration of water. In addition, a sealing member (not shown) may be coupled to the edges of the first induction heating cover 1121 and the second induction heating cover 1122 to prevent penetration of water. The first induction heating cover 1121 and the second induction heating cover 1122 are preferably made of a flame retardant material to prevent the induction heating printed circuit board 1110 from being damaged by a fire.

The hot water tank 1130 generates hot water by heating the purified water. The hot water tank 1130 has an internal space for heating the liquid. The hot water tank 1130 is inductively heated under the influence of the magnetic force line formed by the working coil 1140. The liquid is heated while passing through the internal space of the hot water tank 1130 to become hot water. The hot water tank 1130 is made to maintain airtightness.

The working coil 1140 forms a magnetic force line for induction heating of the hot water tank 1130. The working coil 1140 is disposed at one side of the hot water tank 1130 to face the hot water tank 1130. When a current is supplied to the working coil 1140, a magnetic force line is formed in the working coil 1140. The magnetic force line affects the hot water tank 1130, and the hot water tank 1130 is inductively heated under the influence of the magnetic force line.

The shield plate 1190 is disposed on one side of the working coil 1140. The shield plate 1190 is disposed on the opposite side of the hot water tank 1130 based on the working coil 1140. The shield plate 1190 is for preventing magnetic field lines generated from the working coil 1140 from being radiated to the remaining regions except for the hot water tank 1130. Shield plate 1190 may be made of aluminum or other material that changes the flow of magnetic field lines.

The control module 1080 may include a control printed circuit board 1082, a noise printed circuit board 1083, a near field communication (NFC) printed circuit board 1084, a buzzer 1085, and a main printed circuit board ( 1086 and main printed circuit board covers 1087 and 1088.

The control printed circuit board 1082 is a sub configuration of a display printed circuit board (not shown). The control printed circuit board 1082 is not an essential configuration for driving a water supply device such as a water purifier 1000 (see FIG. 3), but serves as an auxiliary part of a display printed circuit board (not shown).

The noise printed circuit board 1083 is for supplying power to the induction heating printed circuit board 1110. Since the output voltage for induction heating is very high, sufficient power must be supplied. The noise printed circuit board 1083 is also not an essential configuration for driving a water supply device such as a water purifier 1000 (see FIG. 3). However, a water supply device such as a water purifier 1000 (refer to FIG. 3) may have a noise printed circuit board 1083 in case a power required for induction heating is not sufficiently supplied. The noise printed circuit board 1083 may supply a separate power source to the induction heating printed circuit board 1110 to satisfy an output voltage for induction heating. The noise printed circuit board 1083 may serve to provide auxiliary power to not only the induction heating printed circuit board 1110 but also other configurations.

The buzzer 1085 outputs sound to provide a user with accurate defect information when a failure occurs in a water supply device such as a water purifier 1000 (see FIG. 3). The buzzer 1085 may output a specific sound of a previously input code according to a failure.

The NFC printed circuit board 1084 is for exchanging data with a communication device. At present, personal communication devices such as smartphones are widely used. Therefore, if the consumer can check the state of the water purifier or input a control command using the personal communication device, the convenience of the consumer can be improved. The NFC printed circuit board 1084 may provide status information of the water supply device to the paired personal communication device, and receive a user's control command from the personal communication device.

The main printed circuit board 1086 controls the overall operation of a water supply such as a water purifier 1000 (see FIG. 3). The driving of the input / output unit 1016 (see FIG. 3) described in FIG. 3 or the compressor 1051 (see FIG. 4) described in FIG. 4 may also be controlled by the main printed circuit board 1086. The main printed circuit board 1086 may receive insufficient power through the noise printed circuit board 1083 when power is insufficient.

The main printed circuit board covers 1087 and 1088 are formed to surround the main printed circuit board 1086. The main printed circuit board covers 1087 and 1088 include a first main cover 1087 and a second main cover 1088.

The main printed circuit board 1086 is installed in an inner space formed by the first main cover 1087 and the second main cover 1088.

The first main cover 1087 and the second main cover 1088 are coupled to each other so as to prevent penetration of water. Sealing members (not shown) may be installed on the first main cover 1087 and the second main cover 1088 to prevent the penetration of water. In addition, the first main cover 1087 and the second main cover 1088 are preferably made of a flame retardant material to prevent the main printed circuit board 1086 from being damaged by a fire.

As described above, the water purifier 1000 may supply hot water using the induction heating module 1100 and the control module 1080. Hereinafter, the temperature of the water purifier 1000 is abnormally increased with reference to FIG. 7. This section describes a fuse that operates when the power is turned off.

7 is an exploded perspective view illustrating some components of the induction heating module of FIG. 6.

Referring to FIG. 7, as described above, the induction heating module 1100 may include a hot water tank 1130, a working coil 1140, a bracket 1160, a silicon cover 1183, a fuse 1182, Fuse cover 1199 may also be included.

In detail, the working coil 1140 is formed of a conductive wire wound in an annular shape, and the hot water tank 1130 is disposed to face the working coil 1140 at a position spaced apart from the working coil 1140, and passes through an internal space. Induction heating may be performed by the working coil 1140 to heat. In addition, the bracket 1160 may be coupled to the hot water tank 1130 with the working coil 1140 interposed therebetween, and the bracket 1160 may include a fuse accommodating part 1166 formed to protrude to the annular inner side of the working coil 1140. It may be provided. The fuse 1182 may be inserted into the fuse receiving unit 1166 to operate when the liquid in the hot water tank 1130 is overheated, and the fuse cover 1199 may include the fuse 1118 for thermal balance of the fuse 1182. It is formed to surround the, and may be disposed between the fuse 1182 and the fuse receiving portion 1166. The silicon cover 1183 may also be coupled to the bracket 1160 to cover the fuse 1182 and the temperature sensor 1181 (see FIG. 8).

Here, the fuse cover 1199 may be formed to surround the fuse 1182, and an opening OP may be formed on one surface of the fuse cover 1199 facing the hot water tank 1130. That is, since the opening OP is formed only on one surface of the fuse cover 1199 facing the hot water tank 1130, heat of the hot water tank 1130 may be properly transferred to the fuse 1182 through the opening OP. The heat transferred to fuse 1182 may facilitate thermal balance of fuse 1182 while minimizing external leakage by fuse cover 1199.

In addition, the fuse cover 1199 may be inserted between the fuse 1182 and the fuse accommodating part 1166 to remove a gap that may occur when the fuse 1182 is inserted into the fuse accommodating part 1166. Through this, the air layer that can be formed in the gap is also removable.

For reference, the fuse cover 1199 may have, for example, a thickness of 1.5 mm to 2 mm, and may be made of heat resistant silicon, but is not limited thereto.

In summary, the fuse cover 1199 removes a gap generated when the fuse 1182 and the fuse accommodating part 1166 are coupled to prevent the fuse 1181 from shaking, and the hot water tank 1130 to the fuse 1118. The transferred heat can be prevented from leaking.

Hereinafter, referring to FIG. 8, the components of the induction heating module 1100 of FIG. 6 that are not described in FIG. 7 will be described in more detail.

FIG. 8 is an exploded perspective view illustrating components of the induction heating module of FIG. 6 which is not described in FIG. 7.

For reference, some of the components shown in FIG. 8 (eg, the spacers 1151, 1152, the insulator 1153, etc.) may be omitted from the induction heating module 1100, but for convenience of description, the present invention In an embodiment of the present invention, the induction heating module 1100 includes all the components of FIG. 8 as an example.

Referring to FIG. 8, the hot water tank 1130 is formed by coupling the edges of the first cover 1131 and the second cover 1132 to each other. The edge of the first cover 1131 and the edge of the second cover 1132 may be coupled to each other by welding or the like to maintain airtightness. The hot water tank 1130 has an internal space for heating the liquid. The inner space is formed by combining the first cover 1131 and the second cover 1132.

The hot water tank 1130 includes an inlet pipe 1132a and an outlet pipe 1132b. The inlet pipe 1132a and the outlet pipe 1132b may be formed in the second cover 1132. The inlet pipe 1132a corresponds to a flow path into which the liquid to be heated flows in. The outlet pipe 1132b corresponds to a flow path through which the heated liquid is discharged. The inlet pipe 1132a and the outlet pipe 1132b may be formed opposite to each other.

The first cover 1131 is configured to generate heat under the influence of the magnetic force line formed by the working coil 1140. Since the first cover 1131 is induction heated by the working coil 1140, the interval between the first cover 1131 and the working coil 1140 is kept constant so that the output of the first cover 1131 is accurately controlled. Should be. Accurate control of induction heating refers to controlling the output of the induction heating module 1100.

If the working coil 1140 is out of the reference position, the induction heating of the first cover 1131 is difficult to control accurately. Here, the reference position refers to the position of the working coil 1140 in which induction heating of the first cover 1131 by the working coil 1140 can be accurately controlled. The gap between the first cover 1131 and the working coil 1140 is maintained by the spacers 1151 and 1152 described later.

Similarly, if one portion of the first cover 1131 is spaced too far from the working coil 1140 or too close to the working coil 1140 relative to the other portion, the induction heating of the portion is difficult to control accurately. Therefore, it is preferable that the first cover 1131 has a flat plate shape so that all parts of the first cover 1131 are uniformly located at a proper distance from the working coil 1140.

The first cover 1131 may be made of a suitable material for heat generation. The first cover 1131 may be made of a stainless material, and preferably may be made of four series of stainless materials. More preferably, the first cover 1131 may be made of STS (STainless Steel, Korean Industrial Standard) 439 material. STS 439 has enhanced corrosion resistance compared to STS430. Corrosion resistance refers to the property which can suppress corrosion by contact with water. The first cover 1131 may have a thickness of about 0.8 mm.

Since the second cover 1132 is disposed on the opposite side of the working coil 1140 with respect to the first cover 1131 and has less influence of the magnetic force line, the second cover 1132 has less relation with heat generation than the first cover 1131. Therefore, it is preferable that the second cover 1132 is made of a material having corrosion resistance rather than heat generation characteristics. The second cover 1132 may be made of a stainless material, and preferably may be made of three series of stainless materials. More preferably, the second cover 1132 may be made of STS 304 material. STS 304 is more corrosion resistant than STS 430 or STS 439. The second cover 1132 may have a thickness of about 1.0 mm.

Since the second cover 1132 is less related to induction heating, it is not necessary to maintain a constant distance from the working coil 1140. Therefore, one portion of the second cover 1132 may be disposed farther from or closer to the working coil 1140 than the other portion.

The second cover 1132 includes a base surface 1132c, a protruding surface 1132d, a welded portion 1132e, and a protrusion 1132f. The base surface 1132c, the protruding surface 1132d, and the protrusion 1132f may be integrally formed by press working. When the second cover 1132 having the base surface 1132c is partially pressed, a protruding surface 1132d and a protrusion 1132f may be formed on the second cover 1132. The integrally formed means not one component but one component. The base surface 1132c, the protruding surface 1132d, and the protrusion 1132f may be formed of any one of the second covers 1132. It should be understood that a part is named to distinguish it from other parts. The base face 1132c, the protruding face 1132d, and the protrusion 1132f are names indicating the parts of the second cover 1132.

The base surface 1132c faces the first cover 1131 at a position spaced apart from the first cover 1131. It has been described that the hot water tank 1130 has an internal space for heating the liquid. The base face 1132c is spaced apart from the first cover 1131 to form the interior space.

The protruding surface 1132d protrudes from the base surface 1132c toward the first cover 1131. The protruding surface 1132d may be in close contact with the first cover 1131. The perimeter of the protruding surface 1132d connects the base surface 1132c and the protruding surface 1132d with each other. When the second cover 1132 is pressed to form the protruding surface 1132d, a periphery connecting the base surface 1132c and the protruding surface 1132d with each other is naturally formed. The periphery of the protruding surface 1132d may be formed to be inclined.

The weld part 1132e is formed by welding the first cover 1131 and the second cover 1132. More specifically, the weld 1132e is formed by welding the first cover 1131 and the protruding surface 1132d. Therefore, the weld 1132e is not only formed on the protruding surface 1132d but also on the first cover 1131.

The base surface 1132c may be welded to the first cover 1131 because the base surface 1132c is spaced apart from the first cover 1131 to form an inner space of the hot water tank 1130. Since the periphery of the protruding surface 1132d also becomes closer to the base surface 1132c, it is further away from the first cover 1131, and thus, it is difficult to weld to the first cover 1131. On the contrary, since the protruding surface 1132d protrudes to be in close contact with the first cover 1131, the protruding surface 1132d may be easily welded to the first cover 1131. The protruding surface 1132d may be referred to as a configuration that is assumed to form the weld 1132e rather than having a technical meaning in itself.

The weld part 1132e is for preventing deformation of the first cover 1131. When the temperature of the liquid rises inside the hot water tank 1130 by the operation of the induction heating module 1100 (see FIG. 4), the liquid expands gradually and the pressure inside the hot water tank 1130 gradually increases. When the water evaporates and becomes a vapor, it is known that the volume is about 1,700 times larger. Therefore, the pressure inside the hot water tank 1130 may rise very high in the hot water generation process. In addition, an internal pressure of the hot water tank 1130 that is rapidly increasing may cause deformation of the first cover 1131.

There is a condition that the first cover 1131 must have a shape of a flat plate for accurate control of induction heating, and the flat plate is limited to having a deformation preventing structure due to pressure rise. Within this limitation, a weld 1132e is introduced to prevent deformation of the first cover 1131.

Welding refers to the operation of joining two metal materials to each other by melting a part of the metal material by locally applying heat to a desired position for joining and rearranging atomic bonds. Bonding by welding has a very strong bonding force by rearrangement of atomic bonds. Since the weld 1132e is formed by welding the protruding surface 1132d and the first cover 1131, it may be described that the first cover 1131 has a weld 1132e, and the second cover 1132 is provided. May be described as having a weld 1132e, and it may be described that the first cover 1131 and the second cover 1132 have a weld 1132e. Further, the weld 1132e may be described as being formed between the first cover 1131 and the second cover 1132. Although not shown in FIG. 8, the welded portion (not shown) of the second cover 1132 may be inferred in shape and position from the welded portion 1132e of the first cover 1131.

Since the welding part 1132e strongly couples the first cover 1131 and the second cover 1132, deformation of the first cover 1131 may be prevented even when the internal pressure of the hot water tank 1130 increases. Further, it can be understood that the welding part 1132e can prevent deformation of the second cover 1132 as well as the first cover 1131 in that the first cover 1131 and the second cover 1132 are mutually coupled. have.

The position of the weld 1132e is not limited to a specific position. The weld 1132e is preferably formed at a position that does not overlap with the temperature sensor 1181, but is not necessarily so. The overlapped position means that the welding unit 1132e and the temperature sensor 1181 are projected on the same area when the working coil 1140 is viewed from the second cover 1132 in front.

The temperature sensor 1181 is disposed opposite the second cover 1132 with respect to the first cover 1131. The temperature sensor 1181 is configured to measure the temperature of the liquid passing through the internal space of the hot water tank 1130. In order for the temperature sensor 1181 to measure the temperature of the liquid, the liquid must exist at a position overlapping with the temperature sensor 1181. However, if the weld 1132e is formed at a position overlapping with the temperature sensor 1181, the liquid does not exist at the position overlapping with the temperature sensor 1181, and only the weld 1132e exists. Therefore, in this structure, hot water temperature measurement by the temperature sensor 1181 may be inaccurate.

The weld part 1132e has a shape of a closed curve. If the weld 1132e is formed in a shape having an end point such as a straight line or a curve, the influence of the high pressure formed in the hot water tank 1130 is concentrated at the end point. Accordingly, separation of the first cover 1131 and the second cover 1132 may occur from the end point. In contrast, when the weld 1132e has the shape of a closed curve, the influence of the high pressure may be evenly distributed on the closed curve without concentrating on any one portion. Therefore, the welded portion 1132e of the closed curve may improve the pressure resistance performance of the hot water tank 1130.

The closed curve in this specification means a figure in which the starting point and the ending point are the same when a point on a straight line or a curve is taken. For example, since polygons as well as circles and ellipses correspond to the closed curves, the closed curves are not necessarily formed as curves but may be formed by a set of straight lines. Thus, a closed figure or a single closed curve may be used instead of the closed curve.

The protrusion 1132f protrudes from the base surface 1132c toward the first cover 1131. Unlike the protruding surface 1132d being in close contact with the first cover 1131, the protrusion 1132f is not in intimate contact with the first cover 1131 and maintains a spaced apart state from the first cover 1131. However, the protrusion 1132f is formed closer to the first cover 1131 than to the base surface 1132c.

The protrusion 1132f extends toward the inlet pipe 1132a and the outlet pipe 1132b of the hot water tank 1130. For example, when the inlet pipe 1132a and the outlet pipe 1132b are arrange | positioned on the opposite side with respect to the up-down direction of the hot water tank 1130, the projection part 1132f also the inlet pipe 1132a and the outlet pipe 1132b. It can extend in the vertical direction toward. The protrusion 1132f may reinforce the rigidity (or strength) of the second cover 1132 through a structure protruding toward the first cover 1131 and extending toward the water inlet pipe 1132a and the water outlet pipe 1132b. .

The protrusion 1132f is for preventing deformation of the second cover 1132 and for distributing the flow rate of the liquid (or controlling the flow rate of the liquid). As described above, when the internal pressure of the hot water tank 1130 increases, deformation of the second cover 1132 as well as the first cover 1131 may be caused. Since the protrusion 1132f reinforces the rigidity of the second cover 1132 through the structure extending in the protruding state, even if the internal pressure of the hot water tank 1130 is increased, the second cover 1132 is formed by the protrusion 1132f. The deformation of can be prevented. Furthermore, since the second cover 1132 is strongly coupled to the first cover 1131 by the welding part 1132e, the deformation of the second cover 1132 is prevented by the interaction between the welding part 1132e and the protrusion 1132f. Can be prevented.

The protrusion 1132f has a constant width in the direction crossing the extension direction. For example, the extension direction of the projection 1132f is a vertical direction toward the water inlet pipe 1132a and the water outlet pipe 1132b. The direction crossing the extension direction is the left and right direction. Since the protrusion 1132f has a constant width in the left and right direction, particles of the liquid introduced through the water inlet pipe 1132a collide with the protrusion 1132f. And the particles of the collided liquid spread out in all directions. Through such a mechanism, the protrusion 1132f may distribute the flow rate to various places inside the hot water tank 1130.

Furthermore, the protrusion 1132f controls the flow rate. For example, the protrusion 1132f forms a flow resistance to lower the flow velocity of the liquid. Particles of the liquid introduced into the hot water tank 1130 through the inlet pipe 1132a are subjected to resistance to flow as they collide with the protrusion 1132f. Therefore, when the particle | grains of a liquid collide with the protrusion 1132f, the flow velocity of a liquid will fall. This is to prevent the liquid from being heated sufficiently in the hot water tank 1130 and draining excessively quickly. The protrusion 1132f controls the flow rate so that the liquid can stay in the hot water tank 1130 sufficiently. Accordingly, the liquid may be sufficiently heated in the hot water tank 1130.

The protrusion 1132f includes a first protrusion 1132f1 and a second protrusion 1132f2.

The first protrusion 1132f1 extends toward the inlet pipe 1132a and the outlet pipe 1132b of the hot water tank 1130. The first protrusion 1132f1 is for preventing deformation of the second cover 1132. The first protrusion 1132f1 may have a smaller width than the second protrusion 1132f2.

The second protrusion 1132f2 extends in the direction crossing the extension direction of the first protrusion 1132f1. For example, the first protrusion 1132f1 extends in the vertical direction, and the second protrusion 1132f2 extends in the left and right directions crossing the vertical direction.

The left and right extension lengths of the second protrusion 1132f2 are longer than the width of the first protrusion 1132f1. This is because the second protrusion 1132f2 is configured for distribution of the flow rate of the second cover 1132 and control of the flow rate. In order to disperse the liquid to be heated in the hot water tank 1130, the second protrusion 1132f2 should be able to collide with the particles of the liquid. The extension length of the second protrusion 1132f2 is formed longer than the width of the first protrusion 1132f1 to provide a collision area with the liquid particles. In addition, the second protrusion 1132f2 may protrude closer to the first cover 2131 than the first protrusion 1132f1 to provide a collision area.

The second protrusions 1132f2 may be formed at both ends of the first protrusions 1132f1, respectively. In FIG. 8, when both ends of the first protrusion 1132f1 are referred to as the first end and the second end, respectively, the first end is disposed close to the inlet pipe 1132a, and the second end is disposed close to the water outlet pipe 1132b. do. The second protrusion 1132f2 may be formed at each of the first and second ends of the first protrusion 1132f1 and may be formed between the first and second ends.

The hot water tank 1130 may include a plurality of first protrusions 1132f1 and second protrusions 1132f2. At least some of the plurality of second protrusions 1132f2 are disposed to contact the liquid introduced through the inlet pipe 1132a or the liquid to be discharged through the outlet pipe 1132b. Contact with liquid means collision with liquid particles. Through the structure of the second protrusion 1132f2, flow rate distribution and flow rate control may be performed.

Among the plurality of second protrusions 1132f2, the ones formed at the first end of the first protrusion 1132f1 (the end of the water inlet pipe 1132a) are for distribution of flow rate and control of flow rate. The liquid particles introduced into the hot water tank 1130 through the water inlet pipe 1132a collide with the second protrusion 1132f2 so that the flow rate of the liquid spreads in all directions. Accordingly, the liquid may be sufficiently heated in the hot water tank 1130.

Among the plurality of second protrusions 1132f2, those formed at the second end (the end of the water discharge pipe 1132b) of the first protrusion 1132f1 are for controlling the flow rate. When the liquids are mixed with each other before being discharged from the hot water tank 1130 by the control of the flow rate, hot water of a uniform temperature range may be provided.

The first protrusion 1132f1 and the second protrusion 1132f2 may be integrally formed by press working. The first protrusion 1132f1 and the second protrusion may be formed by pressing the second cover 1132 having the base surface 1132c in consideration of the extension direction of the first protrusion 1132f1 and the extension direction of the second protrusion 1132f2. 1132f2 is integrally formed with the base surface 1132c. Since the protruding surface 1132d can also be formed by pressing, the protruding portion 1132f and the protruding surface 1132d can be formed simultaneously by one press working.

The position and number of the first protrusion 1132f1, the second protrusion 1132f2, and the weld 1132e may be selectively changed. The position of the projection 1132f is not particularly limited. The protrusion 1132f may be formed at a position overlapping with the temperature sensor 1181.

The working coil 1140 is disposed at one side of the hot water tank 1130. The working coil 1140 and the hot water tank 1130 are disposed to face each other at spaced positions. Referring to FIG. 8, the working coil 1140 may be described as being disposed at a position facing an outer surface of the first cover 1131. For convenience of description, the surface facing the second cover 1132 of the two surfaces of the first cover 1131 is divided into the inner surface, and the surface facing the working coil 1140 is divided into the outer surface. Therefore, one side of the hot water tank 1130 corresponds to a position facing the outer surface of the first cover 1131.

The working coil 1140 is formed by a wire wound in an annular shape. Working coil 1140 consists of a single strand or multiple strands of copper or other conductors. When the working coil 1140 is composed of several strands of conductors, each strand is insulated.

The working coil 1140 forms a magnetic field or a line of magnetic force by a current applied to the working coil 1140. The first cover 1131 generates heat under the influence of the magnetic force line formed by the working coil 1140.

Since the hot water tank 1130 is induction heated by the working coil 1140, maintaining a constant interval between the working coil 1140 and the hot water tank 1130 is very important for the control of the induction heating. Spacers 1151 and 1152 are disposed between the working coil 1140 and the hot water tank 1130 to maintain a constant distance between the working coil 1140 and the hot water tank 1130.

The spacers 1151 and 1152 must satisfy the following six conditions.

The first condition is that although the spacers 1151 and 1152 are squeezed by the hot water tank 1130 and the working coil 1140, the spacers 1151 and 1152 maintain a constant distance between the working coil 1140 and the hot water tank 1130. It must be able to maintain. In order to accurately control the induction heating, the gap between the hot water tank 1130 and the working coil 1140 must be kept constant. With the spacers 1151 and 1152 disposed between the hot water tank 1130 and the working coil 1140, one surface of the spacers 1151 and 1152 may be in close contact with the hot water tank 1130 and the other surface of the spacers 1151 and 1152. In close contact with the working coil 1140, the distance between the hot water tank 1130 and the working coil 1140 is determined by the thicknesses of the spacers 1151 and 1152.

If the spacers 1151 and 1152 are compressed and elastically deformed by the hot water tank 1130 and the working coil 1140, the thicknesses of the spacers 1151 and 1152 will be thinner than before the pressing and the hot water tank 1130 and the working coil 1140. The spacing between the coils 1140 may not be kept constant. Therefore, even if the spacers 1151 and 1152 are compressed by the hot water tank 1130 and the working coil 1140, the spacers 1151 and 1152 should be able to maintain their original thickness without causing deformation.

If the spacers 1151 and 1152 have an appropriate strength, the original thickness may be maintained without causing elastic deformation even if the spacers 1151 and 1152 are compressed by the hot water tank 1130 and the working coil 1140. Therefore, the first condition of the spacers 1151 and 1152 is the same as having a strength that does not cause deformation even when the hot water tank 1130 and the working coil 1140 are compressed.

The second condition is that the spacers 1151 and 1152 must be able to maintain electrical insulation between the hot water tank 1130 and the working coil 1140. Current is applied to the working coil 1140 for induction heating. However, when the current applied to the working coil 1140 is conducted to the hot water tank 1130, it causes an induction heating of the hot water tank 1130. This is because induction heating is heating using joule heating generated by the electrical resistance of the metal.

If the electrical insulation between the hot water tank 1130 and the working coil 1140 is not maintained, induction heating of the hot water tank 1130 is difficult to control accurately. Since the spacers 1151 and 1152 are disposed between the hot water tank 1130 and the working coil 1140, the spacers 1151 and 1152 should be made of an electrical insulator.

The third condition is that the spacers 1151 and 1152 should be able to inhibit heat transfer between the hot water tank 1130 and the working coil 1140. When current flows through the working coil 1140, the working coil 1140 generates heat, and since the hot water tank 1130 heated by induction by the working coil 1140 also generates heat, there is a risk of fire due to overheating caused by the two heating elements. Can be.

Induction heating module 1100 (see FIG. 6) is also controlled based on the temperature measured by temperature sensor 1181. If the temperature sensor 1181 is affected by too many factors, accurate control of the induction heating module 1100 becomes increasingly difficult. Therefore, in order for the induction heating module 1100 to be controlled accurately, the factors affecting the temperature sensor 1181 may be reduced. As few as possible is desirable.

However, if the heat transfer between the hot water tank 1130 and the working coil 1140 is not suppressed, it becomes more difficult to accurately control the induction heating module 1100 since many factors affect the temperature measured by the temperature sensor 1181. . Since the spacers 1151 and 1152 are disposed between the hot water tank 1130 and the working coil 1140, the spacers 1151 and 1152 should be able to suppress thermal conduction of the hot water tank 1130 and the working coil 1140.

The fourth condition is that the spacers 1151 and 1152 should be made of flame retardant material having heat resistance. The spacers 1151 and 1152 are disposed between the working coil 1140 and the hot water tank 1130, and the temperature of the working coil 1140 and the hot water tank 1130 rises to about 150 ° C. If it does not have heat resistance, it may be damaged by heat.

Therefore, the spacers 1151 and 1152 should be made of a flame retardant having heat resistance up to at least 200 to 300 ° C. so as not to be damaged even at a temperature higher than the temperatures of the heated working coil 1140 and the induction heated hot water tank 1130.

Spacers 1151 and 1152 may be formed of any one of mica, quartz, or glass to satisfy the first to fourth conditions. Mica, quartz, and glass are flame retardant materials that can maintain their thickness even if they are compressed by the hot water tank 1130 and the working coil 1140, have electrical insulation properties, suppress heat conduction, and have sufficient heat resistance.

In addition, the spacers 1151 and 1152 may be formed of silicon (Si) to satisfy the second to fourth conditions. Silicone is a flame retardant material which has electrical insulation, can suppress thermal conduction, and has sufficient heat resistance. However, the silicon may cause elastic deformation when excessively compressed by the hot water tank 1130 and the working coil 1140. Therefore, the silicon may be used as a material for the spacers 1151 and 1152 only when the hot water tank 1130 and the working coil 1140 are not excessively compressed.

The fifth condition of the spacers 1151 and 1152 is that the spacers 1151 and 1152 must have a structure that allows both ends of the working coil 1140 to pass therethrough. The working coil 1140 is annularly formed by a conductive wire, and the working coil 1140 is extended from the inside of the annular end to be connected to the induction heating printed circuit board 1110 (see FIG. 6), and the working coil 1140 The other end extends from the outside of the annulus and is connected to the induction heating printed circuit board.

The spacers 1151 and 1152 are formed in an annular shape so as to correspond to the working coil 1140, and are covered by the first portions 1151a and 1152a and the second portion (hot water tank) so as to pass both ends of the working coil 1140. Jim, 1152b). The first portions 1151a and 1152a form part of the annulus. The second portion 1152b forms the remaining portion of the annulus and has a narrower width than the first portions 1151a and 1152a. In particular, the second portion 1152b is recessed inside and outside the annulus, respectively, to have a narrower width than the first portions 1151a and 1152a. Accordingly, a gap through which both ends of the working coil 1140 may pass is formed at an inner side and an outer side of the annular shape. One end of the walking coil 1140 passes through the annular inner side, and the other end of the walking coil 1140 passes through the annular outer side.

The sixth condition of the spacers 1151 and 1152 should be a structure in which the spacers 1151 and 1152 can implement cooling of the working coil 1140. Since heat generated in the hot water tank 1130 by induction heating is transferred to the liquid passing through the hot water tank 1130, the hot water tank 1130 is cooled by the liquid. On the other hand, the working coil 1140 is in close contact with the spacers 1151 and 1152 and the insulator 1153 to be described later, and the working coils 1140 are formed because the spacers 1151 and 1152 and the insulator 1153 are configured to suppress heat transfer. Has no heat transfer other than air.

Therefore, in order to cool the working coil 1140, an area in which the working coil 1140 and air can be sufficiently contacted should be provided. The spacers 1151 and 1152 have holes 1151c and 1152c to face the hot water tank 1130 and the working coil 1140 to each other. The holes 1151c and 1152c may be formed in the first portions 1151a and 1152a and may be provided in plural to be spaced apart from each other along the annular spacers 1151 and 1152.

Since the working coil 1140 and the hot water tank 1130 are disposed to face each other at spaced positions, the working coil 1140 and the hot water tank 1130 may face each other through the holes 1151c and 1152c. Since the working coil 1140 is spaced apart from the hot water tank 1130, the working coil 1140 may be in contact with the air through the holes 1151c and 1152c. Therefore, the holes 1151c and 1152c form a contact area between the working coil 1140 and air.

In addition, as described above in FIG. 4, the water purifier 1000 includes a fan 1033, and the wind generated by the fan 1033 promotes air flow inside the water purifier 1000, by the fan 1033. When the generated wind is transmitted to the working coil 1140 through the holes 1151c and 1152c, cooling of the working coil 1140 may be further promoted as compared with natural convection of air.

The spacers 1151 and 1152 may be provided in plurality. For example, if the distance between the hot water tank 1130 and the working coil 1140 is to be kept constant at 3.5mm, three spacers 1151 having a thickness of 1mm and a spacer 1152 having a thickness of 0.5mm One sheet may be disposed between the hot water tank 1130 and the working coil 1140. The plurality of spacers 1151 and 1152 should be arranged to be in close contact with each other so that the distance between the hot water tank 1130 and the working coil 1140 is determined by the thicknesses of the spacers 1151 and 1152.

The insulator 1153 is disposed opposite the spacers 1151 and 1152 with respect to the working coil 1140. The insulator 1153 may be understood to be disposed between the working coil 1140 and the bracket 1160 described below. Like the spacers 1151 and 1152, the insulator 1153 must satisfy the following five conditions. However, the condition that the gap must be maintained like the spacers 1151 and 1152 does not apply to the insulator 1153.

The first condition is that the insulator 1153 must be able to maintain electrical insulation between the working coil 1140 and the core 1170. The core 1170 is for suppressing a loss of current, and ferrite is generally used as a material of the core 1170. Therefore, when the current applied to the working coil 1140 is transmitted to the ferrite, which is a conductive material, it may interfere with the normal operation of the core 1170. Therefore, the insulator 1153 must be made of a material capable of maintaining electrical insulation.

The second condition is that the insulator 1153 must be able to inhibit heat transfer between the working coil 1140 and the bracket 1160. Bracket 1160 may be formed by injection, and the injection is generally weak to heat. Therefore, when heat generated from the working coil 1140 is transferred to the bracket 1160, the bracket 1160 may be damaged by heat. To prevent the bracket 1160 from being damaged by heat, the insulator 1153 must be made of a material capable of suppressing heat transfer.

The third condition is that the insulator 1153 must be made of a flame retardant material having heat resistance. The reason why the insulator 1153 should be made of a flame resistant material having heat resistance is the same as that of the spacers 1151 and 1152 should be made of a flame resistant material having heat resistance.

The insulator 1153 may be formed of any one of mica, quartz, glass, or silicon (Si) to satisfy the first to third conditions. Mica, quartz, glass and silicon are flame retardants with electrical insulation, capable of suppressing thermal conduction and having sufficient heat resistance. In particular, since the insulator 1153 does not require a condition related to maintaining the gap, silicon may be used as a material of the insulator 1153 without limitation.

The fourth condition of the insulator 1153 is that the insulator 1153 must have a structure that allows both ends of the working coil 1140 to pass therethrough. The insulator 1153 must have a structure that allows both ends of the working coil 1140 to have a structure that allows the spacers 1151 and 1152 to have a structure that allows both ends of the working coil 1140. Accordingly, the insulator 1153 may have substantially the same structure as the spacers 1151 and 1152.

The insulator 1153 is formed in an annular shape so as to correspond to the working coil 1140, and includes a first portion 1153a and a second portion 1153b so as to pass both ends of the working coil 1140. The first portion 1153a forms part of the annulus. The second part 1153b forms the remaining part of the annular shape and has a narrower width than the first part 1153a. In particular, the second portion 1153b is recessed at the inner side and the outer side of the annulus, respectively, to have a narrower width than the first portion 1153a. Accordingly, a gap through which both ends of the working coil 1140 may pass is formed at an inner side and an outer side of the annular shape. One end of the walking coil 1140 passes through the annular inner side, and the other end of the walking coil 1140 passes through the annular outer side.

The fifth condition of the insulator 1153 must be configured such that the insulator 1153 can implement cooling of the working coil 1140. The reason why the insulator 1153 must be made of a structure capable of implementing cooling of the working coil 1140 is the same as that of the spacers 1151 and 1152 should be made of a structure capable of implementing cooling of the working coil 1140. Like the spacers 1151 and 1152, the insulator 1153 also includes holes 1153c for contacting the working coil 1140 and air.

As described above, the spacers 1151 and 1152 and the insulator 1153 must satisfy substantially the same conditions except for space keeping conditions. Therefore, the spacers 1151 and 1152 and the insulator 1153 may be made of the same material and have the same structure. The names of the spacers 1151 and 1152 and the insulator 1153 are also intended to distinguish each other, and the names of the spacers 1151 and 1152 and the insulator 1153 are not necessarily to be distinguished from each other.

The bracket 1160 is formed to fix the hot water tank 1130 inside the water purifier 1000 (see FIG. 3). Referring back to FIG. 6, boss portions 1087a and 1087b and 1162a and 1162b corresponding to each other are formed on the front surface of the main PCB cover 1087 and the bracket 1160. As long as they correspond to each other, the positions of the two bosses 1087a and 1087b and 1162a and 1162b may be changed according to the design, and the position of the boss may be changed by comparing FIGS. 6 and 8. When a screw (not shown) passes through the bosses 1162a and 1162b of the bracket 1160 and is inserted into the bosses 1087a and 1087b of the main PCB cover 1087, the bracket 1160 is provided with the water purifier 1000. It is fixed inside the body. Since the bracket 1160 is coupled to the hot water tank 1130, the bracket 1160 may fix the hot water tank 1130 to the inside of the water purifier 1000 body.

Referring back to FIG. 8, the bracket 1160 and the hot water tank 1130 are coupled to each other with the spacers 1151 and 1152, the working coil 1140, and the insulator 1153 interposed therebetween. The bracket 1160 is provided with a plurality of bosses 1161a, 1161b, 1161c, and 1161d at positions corresponding to the edges of the hot water tank 1130. The plurality of bosses 1161a, 1161b, 1161c, and 1161d are spaced apart from each other along a line corresponding to the edge of the hot water tank 1130. The hot water tank 1130 and the bracket 1160 are coupled to each other by screws 1800a, 1800b, 1800c, and 1800d inserted into the bosses 1161a, 1161b, 1161c, and 1161d.

The head of each screw 1800a, 1800b, 1800c, 1800d and the bosses 1161a, 1161b, with the hot water tank 1130 and the bracket 1160 coupled to each other by screws 1800a, 1800b, 1800c, and 1800d. An edge of the hot water tank 1130 is disposed between 1161c and 1161d. By this structure, the hot water tank 1130 may be coupled to the bracket 1160 without having a separate hole for screwing.

When the bracket 1160 and the hot water tank 1130 are coupled by the screws 1800a, 1800b, 1800c, and 1800d, both surfaces of the spacers 1151 and 1152 are compressed by the hot water tank 1130 and the working coil 1140. Nevertheless, the reason why the bracket 1160 and the hot water tank 1130 may be coupled by the screws 1800a, 1800b, 1800c, and 1800d is because the spacers 1151 and 1152 are connected to the hot water tank 1130 and the working coil 1140. This is because the interval between them can be kept constant.

If the distance between the hot water tank 1130 and the working coil 1140 is narrowed while the bracket 1160 and the hot water tank 1130 are coupled by the screws 1800a, 1800b, 1800c, and 1800d, the induction heating is precisely performed. Cannot be controlled. However, since the spacers 1151 and 1152 can keep the gap between the hot water tank 1130 and the working coil 1140 constant, the bracket 1160 and the hot water tank 1130 may have screws 1800a, 1800b, 1800c, and 1800d. Can be combined, and there is no problem in the control of induction heating.

The bracket 1160 includes a base portion 1168 facing the working coil 1140, and the two boss portions 1161a, 1161b, 1161c, and 1161d of the bracket 1162a and 1162b of the bracket described above are formed of the base portion 1168. It is formed along the rim. The plurality of hot water tank supports 1163 protrude from the base 1168 to support the hot water tank 1130. The hot water tank support 1116 may be spaced apart from each other along a line corresponding to the edge of the hot water tank 1130. When the edge of the hot water tank 1130 is divided into an outer side and an inner side based on the distance from the center of the hot water tank 1130, the outer side is bosses 1161a, 1161b, and 1161c by screws 1800a, 1800b, 1800c, and 1800d. , 1161d, and the inside thereof is supported by the hot water tank support part 1163.

The bracket 1160 includes a plurality of core accommodating parts 1164 disposed radially. The core accommodating part 1164 is formed by recessing in the direction away from the insulator 1153. A plurality of cores 1170 are inserted into each core receiving portion 1164.

The core 1170 is for suppressing a loss of current, and serves as a shielding film for magnetic force lines. As described above, ferrite may be used as the material of the core 1170.

The temperature sensor 1181 is configured to measure the temperature of the liquid heated in the hot water tank 1130. The bracket 1160 is provided with a temperature sensor accommodating part 1165 to protrude through the annular inner side of the working coil 1140 to accommodate the temperature sensor 1181, and the temperature sensor 1181 is provided with the temperature sensor accommodating part 1165. Is inserted into That is, since the center of the working coil 1140 having an annular shape is empty, the temperature sensor 1181 may be disposed at the center (or the inner side of the annular shape) of the working coil 1140.

The temperature measured by the temperature sensor 1181 is provided to the induction heating printed circuit board 1110 and the control module 1080 described with reference to FIG. 6. The induction heating printed circuit board 1110 and the control module 1080 determine whether to further heat or stop heating based on the temperature of the liquid measured by the temperature sensor 1181. In other words, the output of the induction heating module 1100 (or the output of the working coil 1140) may be determined based on the temperature measured by the temperature sensor 1181. Thermistor may be used as the temperature sensor 1181.

The fuse 1182 is a safety device that cuts off the power of the induction heating module 1100 when the liquid in the hot water tank 1130 is overheated. Unlike the temperature sensor 1181 being classified as a return sensor, the fuse 1182 can be classified as a non-return sensor because it must be replaced once it is operated.

The bracket 1160 includes a fuse accommodating portion 1166 protruding into an annular inner side of the working coil 1140 to accommodate the fuse 1162, and the fuse 1182 is inserted into the fuse accommodating portion 1166. That is, the fuse 1182 may also be disposed at the center (or the inner side of the annular shape) of the working coil 1140 like the temperature sensor 1181.

The bracket 1160 has a position fixing portion 1671. The position fixing part 1167 may support the inner circumference of the working coil 1140 (that is, to fix the positions of the working coil 1140, the spacers 1151 and 1152, and the insulator 1153) of the working coil 1140. It protrudes from the bracket 1160 (ie, the base portion 1168) along a line corresponding to the inner circumference of the annular shape. The position fixing unit 1167 may be provided in plurality, and may be disposed to be spaced apart from each other.

The positions of the working coil 1140, the spacers 1151, 1152, and the insulator 1153 are fixed by the position fixing part 1167 of the bracket 1160, and the working coils 1140, the spacers 1151, 1152, and The insulator 1153 is in close contact with each other by the hot water tank 1130 coupled to the bracket 1160. Therefore, even if there is no additional fixing structure or sealant, the positions of the working coil 1140, the spacers 1151, 1152, and the insulator 1153 may be fixed, and a distance between the hot water tank 1130 and the working coil 1140 may be constant. Can be maintained.

Furthermore, the coupling structure by the sealant may have different operation results depending on the process, and may have difficulty in controlling induction heating depending on the operation result. Therefore, the coupling structure by sealant is a disadvantage in mass production. However, as shown in the present invention, the coupling structure by the screws 1800a, 1800b, 1800c, and 1800d does not appear differently depending on the process, which is advantageous for mass production.

The silicone cover 1183 is coupled to the bracket 1160 to cover the temperature sensor 1181 and the fuse 1182. The silicon cover 1183 may be formed to surround the outer circumferential surface of the position fixing part 1167. In addition, a hole may be formed in the silicon cover 1183 at a portion overlapping with the temperature sensor 1181 for smooth temperature measurement of the temperature sensor 1181.

As such, the water purifier 1000 according to the embodiment of the present invention may maintain a constant distance between the hot water tank 1130 and the working coil 1140 through the spacers 1151 and 1152 and the insulator 1153. Heat generated in the induction heating module 1100 may be transferred to the adjacent parts to prevent heat damage from occurring. In addition, the air cooling of the working coil 1140 may be realized by securing a contact area between the working coil 1140 and the air through the holes 1151c, 1152c, and 1153c provided in the spacers 1151 and 1152 and the insulator 1153. . Furthermore, the screw-fastening structure enables mass production by preventing the process from producing different results.

However, as described above, the water purifier 1000 according to the embodiment of the present invention may not include the spacers 1151 and 1152 or the insulator 1153 among the components shown in FIG. 8, in this case, Manufacturing costs can be reduced by omitting components.

As described above, the water purifier 1000 according to the exemplary embodiment of the present invention removes a gap generated when the fuse 1118 and the fuse accommodating part 1166 are coupled through the fuse cover 1199 of the fuse 1118. Shake can be prevented. Further, by preventing the fuse 1182 from shaking, it is possible to minimize the possibility that the fuse 1182 may be damaged or malfunction due to friction.

In addition, the water purifier 1000 according to an embodiment of the present invention prevents leakage of heat transferred from the hot water tank 1130 to the fuse 1118 through the fuse cover 1199 to reduce the operating temperature range of the fuse 1182. Can be shrunk. Further, by reducing the operating temperature range of the fuse 1182, it is possible to secure product stability by preventing a problem in which a product (ie, a water purifier) is ignited before operating the fuse 1182.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by.

1130: hot water tank 1140: walking coil
1160: bracket 1166: fuse housing
1182: fuse 1183: silicon cover
1199: fuse cover

Claims (10)

A working coil made of a wire wound in an annular shape;
A hot water tank disposed to face the working coil at a position spaced apart from the working coil, the hot water tank being induction heated by the working coil to heat the liquid passing through the internal space;
A bracket coupled to the hot water tank with the working coil therebetween;
A fuse accommodating portion provided in the bracket to protrude into the annular inner side;
A fuse inserted into the fuse accommodation unit to operate when the liquid in the hot water tank is overheated; And
A fuse cover formed to surround the fuse for thermal balance of the fuse and disposed between the fuse and the fuse receiving part;
water purifier.
The method of claim 1,
An opening is formed on one surface of the fuse cover facing the hot water tank.
water purifier.
The method of claim 1,
The fuse cover is made of heat-resistant silicon
water purifier.
The method of claim 1,
The fuse cover has a thickness of 1.5mm ~ 2mm
water purifier.
The method of claim 1,
A temperature sensor accommodating portion provided in the bracket to protrude through the annular inner side; And
The temperature sensor is inserted into the temperature sensor further includes a temperature sensor for measuring the temperature of the liquid heated in the hot water tank,
The output of the working coil is determined based on the temperature measured by the temperature sensor
water purifier.
The method of claim 5,
A position fixing portion protruding from the bracket along an inner circumference of the annular to fix the position of the working coil; And
And a silicon cover coupled to the bracket to cover the temperature sensor and the fuse.
water purifier.
The method of claim 6,
The silicon cover is disposed to surround the outer circumferential surface of the position fixing part, and a hole is formed in a portion overlapping with the temperature sensor to measure the temperature of the temperature sensor.
water purifier.
The method of claim 1,
The bracket has a plurality of bosses disposed spaced apart from each other,
The hot water tank and the bracket are coupled to each other by a screw inserted into the boss,
The edge of the hot water tank is disposed between the head of the screw and the boss portion
water purifier.
The method of claim 1,
The bracket,
A base portion facing the walking coil; And
Spaced apart from each other, comprising a plurality of hot water tank support to protrude from the base portion to support the hot water tank
water purifier.
The method of claim 1,
The fuse cover,
By removing the gap generated when coupling between the fuse and the fuse receiving portion to prevent shaking of the fuse,
To prevent leakage of heat transferred from the hot water tank to the fuse
water purifier.

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