Liquid heater

Abstract

The utility model relates to the technical field of liquid heating, in particular to a liquid heater. The liquid heater comprises a heating kettle, a heat exchange pipe, a water outlet piece, a liquid storage tank, a shell and a refrigeration assembly. The heating kettle is provided with a heating piece, the heating kettle is detachably connected with the shell, and when the heating kettle is connected with the shell, the heating piece is suitable for heating liquid in the heating kettle. And the heat exchange tube is communicated with the heating kettle. And the water outlet piece is communicated with the heat exchange pipe. And a heat exchange medium is filled in the liquid storage tank. The heat exchange pipe is arranged in the liquid storage tank and makes contact with the heat exchange medium. The refrigeration assembly is arranged on the liquid storage tank and makes contact with the heat exchange medium. Water in the heat exchange pipe is cooled through the refrigeration assembly and the heat exchange medium, so that the temperature of the water in the heat exchange pipe is rapidly reduced, the heat exchange pipe communicates with the water outlet piece, and therefore the water with the temperature reduced is directly output through the water outlet piece to be supplied to a user, and the liquid heater can achieve the purpose that the water is cooled and taken immediately after being used; and the cooled water is prevented from being stored for a long time, and the water use safety is improved.

Description

Technical Field

[0001] This application relates to the technical field of liquid heating, and particularly to a liquid heater. Background Art

[0002] Liquid heaters such as electric kettles can heat water to a certain temperature or bring it to a boil. After the water is boiled or heated to a certain temperature, if the user needs normal temperature water or water at a lower temperature, they need to wait for some time. In related technologies, water is cooled by air cooling or water cooling, and the cooled water is stored in an ice tank for use. However, the water stored in the ice tank has a poor taste after a long time and is prone to bacterial growth, presenting hygienic and safety problems. Utility Model Content

[0003] This application aims to solve at least one of the technical problems existing in the related technologies. For this purpose, this application provides a liquid heater, including:

[0004] A housing;

[0005] A heating kettle provided with a heating element, the heating kettle being detachably connected to the housing. When the heating kettle is connected to the housing, the heating element is adapted to heat the liquid in the heating kettle;

[0006] A heat exchange tube communicating with the heating kettle;

[0007] A water outlet member communicating with the heat exchange tube;

[0008] A liquid storage tank provided in the housing, the liquid storage tank containing a heat exchange medium, the heat exchange tube being provided in the liquid storage tank and in contact with the heat exchange medium;

[0009] A refrigeration assembly provided in the liquid storage tank and in contact with the heat exchange medium to cool the heat exchange medium.

[0010] According to an embodiment of the present application, the heat exchange tube has a spiral section, and the spiral section extends along the height direction of the liquid storage tank. Inside the spiral section, the water flow moves in the direction from bottom to top.

[0011] According to an embodiment of the present application, the refrigeration assembly includes a Peltier element and a first heat conducting sheet, the first heat conducting sheet being attached to the cooling surface of the Peltier element, and the first heat conducting sheet being provided in the liquid storage tank and in contact with the heat exchange medium.

[0012] According to an embodiment of the present application, the first heat conducting sheet is provided on the top wall of the liquid storage tank, and / or the first heat conducting sheet is provided on the peripheral wall of the liquid storage tank.

[0013] According to an embodiment of the present application, it further includes a power pump, and the power pump is communicated with both the heating kettle and the heat exchange tube;

[0014] A first reversing valve is provided between the power pump and the heating kettle to switch the power pump to communicate with the outside or with the heating kettle.

[0015] According to an embodiment of the present application, the housing is provided with a base and a water connection interface. The water connection interface is located inside the base and is communicated with the heat exchange tube.

[0016] The liquid heater further includes a coupling component. A part of the coupling component is arranged on the heating kettle and is connected to the heating element, and another part of the coupling component is arranged on the base.

[0017] The heating kettle is detachably connected to the base. When the heating kettle is connected to the base, the heating kettle is communicated with the water connection interface, and the coupling component is turned on.

[0018] According to an embodiment of the present application, the refrigeration component includes a Peltier element, a second heat conducting sheet and a fan. The heat dissipation surface of the Peltier element is connected to the second heat conducting sheet, the second heat conducting sheet is opposite to the fan, the housing is provided with an air outlet and an air inlet, the air outlet and the air inlet are arranged at intervals, and the fan is arranged at the air outlet.

[0019] According to an embodiment of the present application, the liquid heater further includes a second reversing valve, a water delivery pipe and a power pump. The power pump is communicated with both the heating kettle and the heat exchange tube. One end of the water delivery pipe is communicated with the water outlet part, and the other end is communicated with the output end of the power pump. A second reversing valve is provided between the power pump, the water delivery pipe and the heat exchange tube to switch the power pump to communicate with the water delivery pipe or the heat exchange tube.

[0020] According to an embodiment of the present application, the heat exchange tube has a water inlet end and a water outlet end, and at least one of the water inlet end and the water outlet end penetrates through the top wall or the upper end of the side wall of the liquid storage tank.

[0021] A first sealing member is provided at the connection between the water inlet end and the liquid storage tank; and / or, a first sealing member is provided at the connection between the water outlet end and the liquid storage tank.

[0022] According to an embodiment of the present application, the liquid storage tank includes a box body and a cover body. The box body is provided with a liquid inlet, and the cover body is detachably connected to the liquid inlet.

[0023] According to an embodiment of the present application, the diameter of the liquid inlet is greater than or equal to 6 mm.

[0024] According to an embodiment of the present application, the cover body is threadedly connected to the liquid inlet, and a second sealing member is clamped between the cover body and the liquid inlet.

[0025] In the liquid heater according to the present application, the water in the heat exchange tube is cooled by the refrigeration component and the heat exchange medium, so that the temperature of the water in the heat exchange tube drops rapidly. The heat exchange tube is communicated with the water outlet member, so that the water with reduced temperature is directly output through the water outlet member to supply the user. The liquid heater can achieve the purpose of cooling and taking water immediately when in use, so that the water obtained by the user is fresh water output from the heating kettle, avoiding long-term storage of the cooled water, and improving the water use safety.

[0026] Some of the additional aspects and advantages of the present application will be given in the following description, some will become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is one of the structural schematic diagrams of the liquid heater provided by the embodiment of the present application.

[0029] Figure 2 It is another structural schematic diagram of the liquid heater provided by the embodiment of the present application.

[0030] Figure 3 It is one of the top views of the liquid heater provided by the embodiment of the present application.

[0031] Figure 4 is Figure 3 The cross-sectional view of the liquid heater in [A - A] in.

[0032] Figure 5 is Figure 3 The cross-sectional view of the liquid heater in [B - B] in.

[0033] Figure 6 It is another top view of the liquid heater provided by the embodiment of the present application.

[0034] Figure 7 is Figure 6 The cross-sectional view of the liquid heater in [C - C] in.

[0035] Figure 8 is Figure 6 The cross-sectional view of the liquid heater in [D - D] in.

[0036] Figure 9 This is the third schematic structural diagram of the liquid heater provided by the embodiments of the present application.

[0037] Reference numerals:

[0038] 100, liquid heater; 110, housing; 111, base; 112, first temperature sensor; 113, air outlet; 114, air inlet; 115, water outlet member; 116, partition; 120, heating kettle; 121, heat exchange tube; 122, water inlet end; 123, water outlet end; 124, first seal; 130, power pump; 131, air pipe; 132, first reversing valve; 133, water delivery pipe; 134, second reversing valve; 140, liquid storage tank; 141, box body; 142, liquid inlet; 143, cover body; 144, second temperature sensor; 145, heat preservation layer; 150, refrigeration component; 151, first heat conducting sheet; 152, refrigeration sheet; 153, second heat conducting sheet; 154, fan; 155, controller. Detailed implementation manners

[0039] The following further describes the implementation manners of the present application in detail with reference to the accompanying drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0040] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0042] In the embodiments of the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely means that the first feature has a lower horizontal height than the second feature.

[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] The following is combined with Figures 1 to 9 to describe the liquid heater of the present application.

[0045] Refer to Figure 4 and Figure 7 As shown, the liquid heater 100 according to the embodiments of the present application includes a housing 100, a heating kettle 120, a heat exchange tube 121, a water outlet member 115, a liquid storage tank 140, and a refrigeration assembly 150.

[0046] Specifically, a heating element is provided on the heating kettle 120. The heating kettle 120 is detachably connected to the housing 100 and is used to hold liquid. When the heating kettle 120 is connected to the housing 100, the heating element is adapted to heat the liquid in the heating kettle 120. The heating kettle 120 is detachably connected to the housing 100 so as to facilitate removing the heating kettle 120 and using the heating kettle 120 alone or cleaning the heating kettle 120, such as removing scale and the like. The heat exchange tube 121 is communicated with the heating kettle 120, and the water outlet member 115 is communicated with the heat exchange tube 121. The water in the heating kettle 120 flows through the heat exchange tube 121 to the water outlet member 115 to be provided to the user. In some embodiments, the liquid heater 100 includes a power pump 130. The power pump 130 is communicated with both the heating kettle 120 and the heat exchange tube 121. The power pump 130 can pump the water in the heating kettle 120 into the heat exchange tube 121. A liquid outlet may be provided at the bottom of the heating kettle 120. The liquid outlet is connected and communicated with the input end of the power pump 130, and the heat exchange tube 121 is communicated with the output end of the power pump 130. One end of the heat exchange tube 121 is communicated with the power pump 130, and the other end is communicated with the water outlet member 115. The water in the heating kettle 120 is sucked into the heat exchange tube 121 by the power pump 130 and finally output from the water outlet to be supplied to the user. The liquid storage tank 140 is provided in the housing 110. A heat exchange medium is contained in the liquid storage tank 140. The heat exchange medium may be water, gel or a liquid containing a phase change material. As Figure 6 as Figure 7 shown, in some embodiments, a heat preservation layer 145 is provided on the outer peripheral wall of the liquid storage tank 140 to insulate the liquid storage tank 140. The heat preservation layer 145 may be a foamed material layer.

[0047] The heat exchange tube 121 is provided in the liquid storage tank 140 and is in contact with the heat exchange medium. The heat exchange tube 121 may be a stainless steel tube or a stainless steel plate layer having a water channel. When water flows through the heat exchange tube 121, the water exchanges heat with the heat exchange medium through the tube wall of the heat exchange tube 121, thereby reducing the temperature of the output water. After the heating kettle 120 boils the water, the power pump 130 sucks the water into the heat exchange tube 121. The water exchanges heat with the heat exchange medium through the tube wall of the heat exchange tube 121, the temperature is reduced, and finally it flows out from the water outlet member 115 to be provided for the user to use. Refer to Figure 4 shown, in some embodiments, the heat exchange tube 121 has a spiral section, and the spiral section extends along the height direction of the liquid storage tank. Inside the spiral section, the water flow is along the direction from bottom to top (such as Figure 4flows in the direction shown in []. In this way, on the one hand, the length of the heat exchange tube 121 can be increased. The spiral heat exchange tube 121 is located in the liquid storage tank 140, increasing the contact area with the heat exchange medium and improving the heat exchange speed. On the other hand, the water flowing along the direction from bottom to top in the spiral section can fill the spiral section with water, avoiding the phenomenon of empty tubes, so as to ensure that the water is in full contact with the wall of the heat exchange tube 121 for heat exchange and improve the heat exchange efficiency. It can be understood that when the water flows from top to bottom, under the action of gravity, the flow rate of the water is relatively fast, and the flow rate of the water is uneven. The tube is not filled with water, and the water cannot contact the tube wall well, resulting in poor heat exchange effect. As Figure 4 shown, the heat exchange tube 121 has a spiral section in the shape of a spiral. The spiral section is located in the liquid storage tank 140 and extends along the height direction of the liquid storage tank (such as the up and down direction in Figure 4 ). For example, the spiral section can be cylindrical or conical. In some embodiments, the spiral section can also extend in a serpentine shape.

[0048] The refrigeration assembly 150 is arranged in the liquid storage tank 140 and is in contact with the heat exchange medium to cool the heat exchange medium. Compared with the air-cooling and water-cooling methods, cooling through the refrigeration assembly 150 can reduce the temperature of the heat exchange medium below room temperature, improve the heat exchange speed with the water in the heat exchange tube 121, and can also reduce the temperature of the water in the heat exchange tube 121 below room temperature, better meeting the user's needs. In addition, the heat exchange tube 121 is communicated with the water outlet member 115, and the cooled water is directly provided to the user, that is, cooling and taking water immediately, ensuring that the water taken by the user is fresh water output from the heating kettle 120, avoiding long-term storage of the cooled water, and improving the water use safety.

[0049] According to the liquid heater 100 of the embodiment of the present application, the water in the heat exchange tube 121 is cooled by the refrigeration assembly 150 and the heat exchange medium, so that the temperature of the water in the heat exchange tube 121 is rapidly reduced. The heat exchange tube 121 is communicated with the water outlet member 115, so that the cooled water is directly output through the water outlet member 115 to supply the user. The liquid heater 100 can achieve the purpose of cooling and taking water immediately, so that the water taken by the user is fresh water output from the heating kettle 120, avoiding long-term storage of the cooled water, and improving the water use safety.

[0050] See Figure 3 and Figure 4, according to some embodiments of the present application, a base 111 and a water connection interface are provided on the housing 110. The heating kettle 120 is detachably connected to the base 111, for example, connected in a plug-in manner, or fixed on the base 111 by the gravity of the heating kettle 120. A part of the base 111 is located on the outer wall of the housing 110. The liquid heater 100 further includes a coupling component. A part of the coupling component is provided on the heating kettle 120 and connected to the heating element. Another part of the coupling component is provided on the base 111. When the heating kettle 120 is connected to the base 111, the heating kettle 120 is in communication with the water connection interface, and the coupling component is turned on to energize the heating element, so as to heat the water in the heating kettle 120. The heating element can be an electric heating wire or a heating plate. The heating kettle 120 is detachably connected to the base 111 for easy cleaning of the heating kettle 120 to remove scale and the like. The water connection interface is provided in the base 111 and is in communication with the heat exchange tube 121. For example, the water connection interface is connected and in communication with the first reversing valve 132, and the first reversing valve 132 is connected and in communication with the power pump 130, and the power pump 130 is connected and in communication with the heat exchange tube 121, so that the water connection interface is in communication with the heat exchange tube 121 through the first reversing valve 132 and the power pump 130. A switch valve can be provided at the bottom of the heating kettle 120. When the heating kettle 120 is connected to the base 111, the switch valve is opened, and the heating kettle 120 is in communication with the power pump 130 through the water connection interface.

[0051] See Figure 6 And Figure 7 As shown, according to some embodiments of the present application, the heat exchange tube 121 has a water inlet end 122 and a water outlet end 123. The water inlet end 122 is in communication with the power pump 130, and the water outlet end 123 is in communication with the water outlet member 115. At least one of the water inlet end 122 and the water outlet end 123 penetrates through the top wall or the upper end of the side wall of the liquid storage tank 140. For example, the water inlet end 122 can penetrate through the top wall of the liquid storage tank 140, or the water outlet end 123 can penetrate through the top wall of the liquid storage tank 140, or both the water inlet end 122 and the water outlet end 123 can penetrate through the top wall of the liquid storage tank 140; or one or both of the water inlet end 122 and the water outlet end 123 penetrate through the position near the upper end of the side wall of the liquid storage tank 140. This can prevent the heat exchange medium from leaking at the connection between the water inlet end 122 or the water outlet end 123 and the liquid storage tank 140 after long-term use and improve reliability. As Figure 7As shown, in some embodiments, a first seal 124 is provided at the connection between the water inlet end 122 and the liquid storage tank 140; and / or, a first seal 124 is provided at the connection between the water outlet end 123 and the liquid storage tank 140. When the distance between the water outlet end 123 and the water inlet end 122 is small, the first seal 124 at the connection between the water inlet end 122 and the liquid storage tank 140 and the first seal 124 at the connection between the water outlet end 123 and the liquid storage tank 140 can be an integrally formed part. The first seal 124 can be a rubber ring to improve the sealing performance at the connection between the water inlet end 122 and the liquid storage tank 140 and at the connection between the water outlet end 123 and the liquid storage tank 140.

[0052] See Figure 8 As shown, according to some embodiments of the present application, the refrigeration assembly 150 includes a thermoelectric cooler 152 and a first heat conducting sheet 151. The thermoelectric cooler 152 is a semiconductor thermoelectric cooler 152, which has a refrigerating surface and a heat dissipating surface. The first heat conducting sheet 151 is attached to the refrigerating surface of the thermoelectric cooler 152. The first heat conducting sheet 151 is disposed in the liquid storage tank 140 and contacts the heat exchange medium to exchange heat with the heat exchange medium and reduce the temperature of the heat exchange medium. In some embodiments, the first heat conducting sheet 151 is disposed on the top wall of the liquid storage tank 140, or the first heat conducting sheet 151 can also be disposed on the peripheral wall of the liquid storage tank 140 and is closer to the top wall of the liquid storage tank 140 than the bottom wall of the liquid storage tank 140. Thus, after part of the heat exchange medium exchanges heat with the heat exchange tube 121, its temperature is relatively high and it flows towards the top of the liquid storage tank 140, while the heat exchange medium with a relatively low temperature after exchanging heat with the first heat conducting sheet 151 flows towards the bottom of the liquid storage tank 140. That is to say, the heat exchange medium can flow in the liquid storage tank 140, and the heat exchange medium with an increased temperature can automatically flow to the first heat conducting sheet 151 for heat exchange and cooling, improving the heat exchange speed between the heat exchange medium and the first heat conducting sheet 151.

[0053] According to some embodiments of the present application, the refrigeration assembly 150 includes a fan 154, and the fan 154 is used to drive the air flow to dissipate heat from the thermoelectric cooler 152. See Figure 7 With Figure 8 As shown, the refrigeration assembly 150 is located in the housing 110. The heat dissipating surface of the thermoelectric cooler 152 is connected to the second heat conducting sheet 153 to improve the heat dissipation speed of the heat dissipating surface. There are multiple second heat conducting sheets 153, and the multiple second heat conducting sheets 153 are arranged at intervals. The fan 154 can drive the air flow inside and outside the housing 110 to take away the heat on the second heat conducting sheet 153. As Figure 1 With Figure 2As shown, the housing 110 is provided with an air outlet 113 and an air inlet 114, and the air outlet 113 and the air inlet 114 are spaced apart. The fan 154 is disposed at the air outlet 113. For example, both the air outlet 113 and the air inlet 114 can be provided on the same side wall of the housing 110, and the distance between the air outlet 113 and the air inlet 114 is greater than or equal to 20 mm to ensure the normal heat dissipation of the housing 110; or, the housing 110 has opposite first and second side walls, the air inlet 114 is provided on the first side wall, and the air outlet 113 is provided on the second side wall, so that air fully flows through the second heat sink 153 to improve the heat dissipation speed of the second heat sink 153.

[0054] See Figure 5 And Figure 8 As shown, according to some embodiments of the present application, the liquid storage tank 140 includes a tank body 141 and a cover body 143. The tank body 141 is provided with a liquid inlet 142, and the liquid inlet 142 can be provided on the top wall of the tank body 141. The water inlet end 122 and the water outlet end 123 of the heat exchange tube 121 can both penetrate through the top wall of the tank body 141. The cover body 143 is detachably connected to the liquid inlet 142. The liquid inlet 142 is used to inject a heat exchange medium into the tank body 141. The detachable connection between the cover body 143 and the liquid inlet 142 facilitates the assembly of the liquid storage tank 140 during the production process. After the heat exchange tube 121 and the refrigeration assembly 150 are assembled with the tank body 141, the heat exchange medium is injected into the tank body 141, and the cover body 143 is connected to the liquid inlet 142, and the assembly can be completed, and the process is simple. In some embodiments, the cover body 143 is threadedly connected to the liquid inlet 142, and a second sealing member is clamped between the cover body 143 and the liquid inlet 142. The second sealing member can be a rubber ring to improve the sealing performance and reliability.

[0055] According to some embodiments of the present application, the diameter of the liquid inlet 142 is greater than or equal to 6 mm. For example, the diameter of the liquid inlet 142 can be 6 mm, 7 mm or 10 mm. When injecting the heat exchange medium into the tank body 141, it is convenient for the gas in the tank body 141 to escape from the liquid inlet 142. It can be understood that on the production line, usually a liquid injection pipe is used to inject the heat exchange medium into the tank body 141. As long as the diameter of the liquid inlet 142 is greater than the diameter of the liquid injection pipe, when the liquid injection pipe is inserted into the liquid inlet 142, there is a gap between the liquid injection pipe and the inner wall of the liquid inlet 142 for the gas in the tank body 141 to escape.

[0056] See Figure 9As shown, according to some embodiments of the present application, the liquid heater 100 further includes a power pump 130. The power pump 130 is in communication with both the heating kettle 120 and the heat exchange tube 121. A first reversing valve 132 is provided between the power pump 130 and the heating kettle 120 to switch the connection of the power pump 130 between the outside and the heating kettle 120. When the first reversing valve 132 switches the air tube 131 to communicate with the outside, outside air is sucked into the heat exchange tube 121 to clean the stagnant water in the heat exchange tube 121. When the first reversing valve 132 switches the connection between the heating kettle 120 and the power pump 130, the water in the heating kettle 120 can be sucked into the heat exchange tube 121 to supply water to the user. For example, in some embodiments, the liquid heater 100 further includes an air tube 131. The input end of the power pump 130 is in communication with the heating kettle 120 through the first reversing valve 132, and the output end of the power pump 130 is in communication with the heat exchange tube 121. One end of the air tube 131 is in communication with the first reversing valve 132, and the other end of the air tube 131 is in communication with the outside air. The power pump 130 can pump external air into the heat exchange tube 121 through the air tube 131 to flush out the stagnant water in the heat exchange tube 121. For example, when water is not taken through the heat exchange tube 121 for a long time, or after the liquid heater 100 has not been used for a long time, when water needs to be taken through the heat exchange tube 121, the power pump 130 pumps air into the heat exchange tube 121 through the air tube 131. After flushing out the stagnant water in the heat exchange tube 121, the water in the heating kettle 120 is pumped into the heat exchange tube 121 to ensure that the water supplied to the user is fresh water immediately output from the heating kettle 120. Moreover, since the liquid heater 100 cools and outputs water immediately through the heat exchange tube 121 instead of using a water storage tank to store the cooled water, the stagnant water can be cleaned through the air tube 131 and the power pump 130 without manual cleaning, which is convenient to operate and improves the water use safety.

[0057] See Figure 9As shown, according to some embodiments of the present application, the liquid heater 100 further includes a second reversing valve 134 and a water delivery pipe 133. One end of the water delivery pipe 133 is communicated with the water outlet member 115, and the other end is communicated with the power pump 130. Thus, the water in the heating kettle 120 can be directly output through the power pump 130 and the water delivery pipe 133 to meet the water use requirements of the user. A second reversing valve 134 is provided between the power pump 130, the water delivery pipe 133, and the heat exchange pipe 121 to switch the connection between the power pump 130 and the water delivery pipe 133 or the heat exchange pipe 121. When it is necessary to cool the water, the second reversing valve 134 switches the connection between the power pump 130 and the heat exchange pipe 121, and the water in the heating kettle 120 is output through the power pump 130, the heat exchange pipe 121, and the water outlet member 115. When it is necessary to obtain boiling water or the water temperature in the heating kettle 120 meets the requirements of the user, the second reversing valve 134 switches the connection between the power pump 130 and the water delivery pipe 133, and the water in the heating kettle 120 is output through the power pump 130, the water delivery pipe 133, and the water outlet member 115. Check valves may be provided between the water outlet member 115 and the water delivery pipe 133, and between the water outlet member 115 and the heat exchange pipe 121, respectively, to enable unidirectional conduction between the water delivery pipe 133 and the water outlet member 115, and unidirectional conduction between the heat exchange pipe 121 and the water outlet member 115.

[0058] See Figure 4 And Figure 8 As shown, according to some embodiments of the present application, the liquid heater 100 further includes a controller 155, a first temperature sensor 112, and a second temperature sensor 144. A partition 116 is provided inside the housing 110 to divide the internal space of the housing 110 into multiple regions, such as Figure 4 As shown, the liquid storage tank 140 is provided between the partition 116 and the top wall of the housing 110, and the controller 155 is provided between the partition 116 and the bottom wall of the housing 110. The first temperature sensor 112 and the second temperature sensor 144 are both electrically connected to the controller 155 to obtain the temperatures detected by the first temperature sensor 112 and the second temperature sensor 144. The first temperature sensor 112 is provided on the base 111 to detect the temperature of the liquid in the heating kettle 120, and the second temperature sensor 144 is provided inside the liquid storage tank 140 to detect the temperature of the heat exchange medium. There may be multiple second temperature sensors 144, and the multiple second temperature sensors 144 are spaced along the height direction of the liquid storage tank 140.

[0059] The controller 155 is connected to the power pump 130, the refrigeration assembly 150, and the part of the coupling assembly located on the base 111 to control the operating states of the power pump 130, the coupling assembly, and the refrigeration sheet 152. The controller 155 controls the start of the power pump 130 or the power of the refrigeration assembly 150 according to the temperature values detected by the first temperature sensor 112 and the second temperature sensor 144. For example, when the first sensor 112 detects that the temperature of the liquid in the heating kettle 120 reaches the set temperature, the controller 155 controls the coupling assembly to cut off the power supply, so that the heating element stops heating, and controls the power pump 130 to pump the liquid in the heating kettle 120 into the heat exchange tube 121 or pump the liquid in the heating kettle 120 into the water delivery pipe 133; when the second sensor 144 detects that the temperature of the heat exchange medium is greater than or equal to the first preset temperature value, the controller 155 controls the power of the refrigeration assembly 150 to increase, so that the temperature of the heat exchange medium drops below the first preset temperature value, and when the second sensor 144 detects that the temperature of the heat exchange medium is less than or equal to the second preset temperature value, the controller 155 controls the power of the refrigeration assembly 150 to decrease. The controller 155 can also be electrically connected to the first reversing valve 132 and the second reversing valve 134 to control the switching of the communication states of the first reversing valve 132 and the second reversing valve 134.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the present application, rather than limiting the present application. Although the present application has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications, or equivalent replacements of the technical solutions of the present application do not depart from the spirit and scope of the technical solutions of the present application, and should all be covered by the scope of the claims of the present application.

Claims

1. A liquid heater, characterized in that: include: case; A heating kettle, wherein the heating kettle is provided with a heating element, the heating kettle is detachably connected to the shell, and when the heating kettle is connected to the shell, the heating element is suitable for heating the liquid in the heating kettle; A heat exchange tube, the heat exchange tube is connected to the heating kettle; A water outlet member, the water outlet member being in communication with the heat exchange tube; A liquid storage tank, the liquid storage tank is arranged in the shell, the liquid storage tank is filled with a heat exchange medium, the heat exchange tube is arranged in the liquid storage tank, and the heat exchange tube is in contact with the heat exchange medium; A refrigeration component is arranged in the liquid storage tank and contacts the heat exchange medium to cool the heat exchange medium.

2. The liquid heater according to claim 1, characterized in that The heat exchange tube has a spiral section, and the spiral section extends along the height direction of the liquid storage tank. In the spiral section, water flows in a direction from bottom to top.

3. The liquid heater according to claim 1, characterized in that: The refrigeration assembly includes a refrigeration plate and a first heat-conducting plate, wherein the first heat-conducting plate is in contact with a refrigeration surface of the refrigeration plate, and the first heat-conducting plate is arranged in the liquid storage tank and is in contact with the heat exchange medium.

4. The liquid heater according to claim 3, characterized in that: The first heat conducting plate is arranged on the top wall of the liquid storage tank, and / or the first heat conducting plate is arranged on the peripheral wall of the liquid storage tank.

5. The liquid heater according to claim 1, characterized in that: It also includes a power pump, which is connected to the heating kettle and the heat exchange tube; a first reversing valve is provided between the power pump and the heating kettle to switch the power pump to be connected to the outside world or to be connected to the heating kettle.

6. The liquid heater according to claim 1, characterized in that: The shell is provided with a base and a water connection port, wherein the water connection port is located in the base and communicated with the heat exchange tube. The liquid heater further comprises a coupling assembly, a part of which is arranged on the heating kettle and connected to the heating element, and another part of which is arranged on the base. The heating kettle is detachably connected to the base. When the heating kettle is connected to the base, the heating kettle is communicated with the water interface, and the coupling component is turned on.

7. The liquid heater according to claim 1, characterized in that The refrigeration component includes a refrigeration plate, a second heat-conducting plate and a fan. The heat dissipation surface of the refrigeration plate is connected to the second heat-conducting plate, and the second heat-conducting plate is opposite to the fan. An air outlet and an air inlet are provided on the shell. The air outlet and the air inlet are spaced apart, and the fan is arranged at the air outlet.

8. The liquid heater according to claim 1, characterized in that The liquid heater also includes a second reversing valve, a water pipe and a power pump. The power pump is connected to the heating kettle and the heat exchange tube. One end of the water pipe is connected to the water outlet, and the other end is connected to the output end of the power pump. A second reversing valve is provided between the power pump and the water pipe and the heat exchange tube to switch the power pump to connect to the water pipe or the heat exchange tube.

9. The liquid heater according to claim 1, characterized in that The heat exchange tube has a water inlet end and a water outlet end, and at least one of the water inlet end and the water outlet end is penetrated through the upper end of the top wall or the side wall of the liquid storage tank.

10. The liquid heater according to claim 9, characterized in that A first sealing member is provided at the connection between the water inlet end and the liquid storage tank; and / or a first sealing member is provided at the connection between the water outlet end and the liquid storage tank.

11. The liquid heater according to claim 1, characterized in that The liquid storage box comprises a box body and a cover body, the box body is provided with a liquid inlet, and the cover body is detachably connected to the liquid inlet.

12. The liquid heater according to claim 11, characterized in that The diameter of the liquid inlet is greater than or equal to 6 mm.

13. The liquid heater according to claim 11, characterized in that The cover body is threadedly connected to the liquid inlet, and a second sealing member is sandwiched between the cover body and the liquid inlet.

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