Liquid heating device

Abstract

The utility model relates to domestic appliance technical field provides a liquid heating device. According to the liquid heating device of the embodiment of the application, comprising: water tank, liquid heating unit, first pipe line, second pipe line, third pipe line and water outlet, the water inlet end of liquid heating unit is connected to the water tank through the first pipe line of water tank, and the water outlet end of liquid heating unit is connected to the water tank through the second pipe line and forms the circulating boiling water circuit, and the water outlet end of liquid heating unit is connected to the water outlet through the third pipe line and forms instant hot water passage. According to the liquid heating device of the embodiment of the application, the liquid heating unit is independently arranged outside the water tank, the removal efficiency of residual chlorine is effectively improved, the boiling noise is reduced, the water outlet end of the first pipe line is connected to the water outlet through the third pipe line and forms instant hot water passage, the instant hot function is added to the liquid heating device, and the complexity and cost of manufacturing process are reduced.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a liquid heating device. Background Technology

[0002] Liquid heating devices are common small household appliances, primarily used to heat room temperature water to a specified temperature or boil it completely to remove residual chlorine. Most liquid heating devices employ a bottom-heating design, integrating a heating element at the bottom of the bottle to heat the water through heat conduction and convection. However, this design is relatively complex to manufacture, requiring the welding of the bottle body, the fabrication of the heating base and the brazing of the heat element, and then the welding of these two components together. Secondly, the dechlorination efficiency is relatively low. In bottom-heating mode, convection within the water is weak in the initial heating stage, resulting in uneven heat distribution and slow chlorine evaporation. The dechlorination process relies mainly on vigorous boiling in the later stages, prolonging the boiling time and easily causing resonance and cavitation noise, especially noticeable near boiling, negatively impacting the user experience. Utility Model Content

[0003] This application aims to solve at least one of the technical problems existing in the related art. To this end, this application proposes a liquid heating device.

[0004] The liquid heating device according to the embodiments of this application includes: Water tank; Liquid heating unit; First pipeline; Second pipeline; Third pipeline; Water outlet; The first pipeline is equipped with the liquid heating unit, which is used to heat the liquid flowing through the first pipeline. The water tank is connected to the inlet of the first pipeline, and the outlet of the first pipeline is connected to the water tank through the second pipeline to form a circulating water boiling circuit. The outlet of the first pipeline is connected to the outlet through the third pipeline to form an instant hot water outlet passage.

[0005] According to the liquid heating device of this application embodiment, the liquid heating unit is independently located outside the water tank, which effectively improves the removal efficiency of residual chlorine and reduces the noise of boiling water. The water outlet of the liquid heating unit is connected to the water outlet through a third pipeline to form an instant hot water outlet path, which adds an instant heating function to the liquid heating device and reduces the complexity and cost of the manufacturing process.

[0006] According to one embodiment of this application, the liquid heating device includes a switching valve disposed on the third pipeline, the switching valve being used to switch the on / off state of the third pipeline.

[0007] According to one embodiment of this application, the liquid heating device includes a first valve body, which is disposed at the connection between the circulating water boiling circuit and the instant hot water outlet passage. The outlet end of the first pipe is connected to the first interface of the first valve body, the second pipe is connected to the second interface of the first valve body, and the third pipe is connected to the third interface of the first valve body. The first interface of the first valve body is adapted to selectively connect to either the second interface or the third interface of the first valve body.

[0008] According to one embodiment of this application, the liquid heating device includes a one-way valve disposed on the second pipeline for controlling the fluid in the second pipeline to flow unidirectionally toward the water tank.

[0009] According to one embodiment of this application, the liquid heating device includes a first heat dissipation component for dissipating heat from at least one of the water tank, the first pipeline, the liquid heating unit, and the second pipeline.

[0010] According to one embodiment of this application, the first heat dissipation component includes a first fan, which is used to dissipate heat from at least one of the water tank, the first pipeline, the liquid heating unit, and the second pipeline.

[0011] According to one embodiment of this application, the liquid heating unit includes a pump and a heating component. The liquid heating device includes a second valve body and a fourth pipeline. The second valve body is provided between the pump and the heating component. The outlet end of the pump is connected to the first interface of the second valve body. The inlet end of the heating component is connected to the second interface of the second valve body. The inlet end of the fourth pipeline is connected to the third interface of the second valve body. The outlet end of the fourth pipeline is connected to the outlet end of the heating component. The first interface of the second valve body is adapted to selectively connect to either the second interface or the third interface of the second valve body.

[0012] According to one embodiment of this application, a liquid heating unit includes a pump and a heating component, wherein the pump is used to accelerate the liquid flow rate and the heating component is used to heat the flowing liquid.

[0013] According to one embodiment of this application, the heating assembly includes a water pipe and a heater. The water pipe is located on one side of the heater. Alternatively, the heater is a column heater, and the water pipe is sleeved within the heater. Alternatively, the heater is a tubular heater, with the water pipe passing through it.

[0014] According to one embodiment of this application, a first heat dissipation fin is provided at least one of the first pipeline, the liquid heating unit, and the second pipeline.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a liquid heating device provided in one embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the structure of a liquid heating device provided in one embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the structure of a liquid heating device provided in one embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the structure of a liquid heating device provided in one embodiment of this application.

[0021] Figure 5 This is a schematic diagram of the structure of a liquid heating device provided in one embodiment of this application.

[0022] Figure 6 This is a schematic diagram of the structure of a liquid heating device provided in one embodiment of this application.

[0023] Figure 7 This is a schematic diagram of the structure of a heating assembly provided in one embodiment of this application.

[0024] Figure 8 This is a schematic diagram of the structure of a heating assembly provided in one embodiment of this application.

[0025] Figure 9 This is a schematic diagram of the structure of a heating assembly provided in one embodiment of this application.

[0026] Figure 10 This is a schematic diagram of the structure of a heating assembly provided in one embodiment of this application.

[0027] Figure label: 100. Water tank; 200, Liquid heating unit; 210, Pump; 220, Heating assembly; 221, Water pipe; 222, Heater; 223, Heating housing; 230, Second valve body; 300. First pipeline; 400, Second pipeline; 410, First valve body; 420, Check valve; 500. Third pipeline; 510. Switch valve; 600. Water outlet; 700, Fourth Pipeline; 800. First heat dissipation component; 810. First fan; 820. First heat dissipation fins; 900, Second heat dissipation component; 910, Second fan; 920, Second heat dissipation fins. Detailed Implementation

[0028] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but should not be used to limit the scope of this application.

[0029] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections, wherein a fixed connection can include an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0031] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] The following is combined Figures 1 to 10 This application describes a liquid heating device.

[0034] The liquid heating device according to the embodiments of this application includes: a water tank 100, a liquid heating unit 200, a first pipe 300, a second pipe 400, a third pipe 500, and a water outlet 600; the first pipe 300 is provided with the liquid heating unit 200, the water tank 100 is connected to the water inlet of the first pipe 300, and the water outlet of the first pipe 300 is connected to the water tank through the second pipe 400 to form a circulating water heating circuit; the water outlet of the first pipe 300 is connected to the water outlet 600 through the third pipe 500 to form an instant hot water outlet passage.

[0035] According to the liquid heating device of this application embodiment, the liquid heating unit 200 is independently installed outside the water tank 100, which effectively improves the removal efficiency of residual chlorine and reduces the noise of boiling water. The water outlet of the first pipe 300 is connected to the water outlet 600 through the third pipe 500 to form an instant hot water outlet passage, which adds an instant heating function to the liquid heating device and reduces the complexity and cost of the manufacturing process.

[0036] The water tank 100 is the container in the whole device used to store the liquid to be heated. It has a certain volume and can hold an appropriate amount of water according to different usage needs, so as to provide sufficient liquid reserves for the subsequent heating process.

[0037] The liquid heating unit 200 is the core heating component of the device, and it is independently installed outside the water tank 100. This independent installation has several advantages. Firstly, during the heating process, the evaporation and removal of residual chlorine are no longer limited by the location of the liquid heating unit 200 at the bottom of the water tank 100. The liquid heating unit 200 can heat the liquid more thoroughly, reducing the time to boil water and greatly improving the efficiency of residual chlorine removal. Secondly, since the heating unit is not inside the water tank 100, the vibrations and noise generated during heating will not be amplified and propagated within the relatively enclosed space of the water tank 100, effectively reducing noise during the boiling process and creating a quiet and comfortable user environment.

[0038] The first pipe 300, the second pipe 400, and the third pipe 500 play crucial roles in connecting various components and guiding liquid flow within the device. The first pipe 300 transports the liquid from the water tank 100 to the inlet of the liquid heating unit 200, ensuring smooth entry for heating. The outlet of the first pipe 300 connects to the water tank 100 via the second pipe 400, forming a circulating heating loop. This loop allows the liquid to circulate between the heating unit and the water tank 100, ensuring the liquid in the tank 100 is fully heated and achieves uniform heating. Simultaneously, the outlet of the first pipe 300 connects to the outlet 600 via the third pipe 500, creating an instant hot water supply path. When the user needs hot water, the liquid can quickly flow from the heating unit, pass through the third pipe 500, and directly reach the outlet 600, achieving instant hot water. This design eliminates the need for a long waiting time for all the water in the tank 100 to heat up, significantly improving ease of use. Moreover, this simple structural design eliminates the need for complex piping layouts and additional control components to achieve instant heating, reducing manufacturing complexity and production costs.

[0039] According to one embodiment of this application, please refer to Figure 1 The liquid heating device includes a switching valve 510, which is located on the third pipeline 500 and is used to switch the on / off state of the third pipeline 500.

[0040] In this embodiment, a switch valve 510 is added to the third pipeline 500. The switch valve 510 can switch the on / off state of the third pipeline 500 by its own opening or closing action. When the user needs to use instant hot water, he / she only needs to open the switch valve 510, the third pipeline 500 is connected, and the hot water heated by the liquid heating unit 200 can quickly flow through the third pipeline 500 to the outlet 600, so that the user can conveniently obtain hot water.

[0041] When the user does not require the instant hot water function, the switch valve 510 is closed, and the third pipeline 500 is blocked. At this time, the device can perform other operations such as circulating and boiling water in the water tank 100 according to other settings, meeting the diverse needs of users in different scenarios. This design makes the liquid heating device more flexible and versatile, improving the user experience.

[0042] According to one embodiment of this application, please refer to Figure 2 The liquid heating device includes a first valve body 410, which is located at the connection between the circulating water boiling circuit and the instant hot water outlet circuit. The outlet end of the first pipe 300 is connected to the first interface of the first valve body 410, the second pipe 400 is connected to the second interface of the first valve body 410, and the third pipe 500 is connected to the third interface of the first valve body 410. The first valve body 410 has a first state and a second state. In the first state, the first interface of the first valve body 410 is connected to the second interface of the first valve body 410. In the second state, the first interface of the first valve body 410 is connected to the third interface of the first valve body 410.

[0043] In this embodiment, the first valve body 410 can be a two-position three-way valve.

[0044] In boiling water mode, the first valve body 410 is in its first state, at which point the first port of the first valve body 410 is connected to the second port. Liquid flows out of the water tank 100, enters the liquid heating unit 200 through the first pipe 300 for heating, and then flows out from the outlet of the first pipe 300, enters through the first port of the first valve body 410, flows out from the second port into the second pipe 400, and finally returns to the water tank 100, forming a complete circulating boiling water loop. This circulating boiling water method ensures that the liquid in the water tank 100 is fully heated, achieving uniform heating and meeting the needs of long-term boiling.

[0045] When a user needs water, the first valve body 410 switches to the second state, at which point the first port of the first valve body 410 connects to the third port. Liquid also flows from the water tank 100 through the first pipe 300 into the liquid heating unit 200 for heating. The heated hot water flows out from the outlet of the first pipe 300, enters through the first port of the first valve body 410, flows out through the third port into the third pipe 500, and directly reaches the outlet 600, achieving instant hot water dispensing. Users do not need to wait a long time for all the water in the water tank 100 to heat up before obtaining hot water immediately, greatly improving convenience.

[0046] By setting a first valve body 410 at the connection between the circulating water boiling circuit and the instant hot water outlet circuit, precise switching of the water circuit is achieved, enabling the liquid heating device to flexibly switch between boiling water and water use modes according to the user's needs, thereby improving the functionality and practicality of the device and bringing a better user experience.

[0047] According to one embodiment of this application, please refer to Figure 3 The liquid heating device includes a one-way valve 420, which is located on the second pipeline 400 and is used to control the fluid in the second pipeline 400 to flow unidirectionally toward the water tank 100.

[0048] The second pipe 400 connects the outlet of the first pipe 300 to the water tank 100. Before the one-way valve 420 is installed, the liquid flow direction in the second pipe 400 is relatively unrestricted, and in some cases, backflow may occur, affecting the normal operation of the device. In this embodiment, when the liquid heating device is in the circulating boiling mode, the liquid enters the liquid heating unit 200 from the water tank 100 through the first pipe 300 for heating. The heated liquid flows out from the outlet of the first pipe 300 and flows smoothly back to the water tank 100 through the second pipe 400 under the guidance of the one-way valve 420, forming a complete circulating boiling circuit. This ensures that the liquid in the water tank 100 is fully heated, achieving uniform heating and meeting the needs of long-term boiling.

[0049] When a user needs hot water, the switch valve 510 is opened. At this time, the one-way valve increases the resistance in the second pipeline 400, causing most of the liquid to flow preferentially through the third pipeline 500 to the outlet 600. As a result, the pressure at the outlet 600 is relatively lower and more stable, enabling the user to receive the required hot water more quickly and improving the user experience of the instant hot water function.

[0050] According to one embodiment of this application, please refer to Figure 4 and Figure 5 The liquid heating device includes a first heat dissipation component 800, which is used to dissipate heat from at least one of the water tank 100, the first pipeline 300, the liquid heating unit 200, and the second pipeline 400.

[0051] The first heat dissipation component 800 has a flexible heat dissipation method, which can dissipate heat from at least one of the water tank 100, the first pipe 300, the liquid heating unit 200, and the second pipe 400 according to actual needs. For example, the first heat dissipation component 800 can take the form of a heat sink, which is installed on the surface of the liquid heating unit 200 to increase the heat dissipation area and accelerate heat dissipation. The heat sink is usually made of a material with good thermal conductivity, such as aluminum alloy, which can quickly conduct the heat generated by the liquid heating unit 200 to the heat sink, and then dissipate the heat through thermal convection with the surrounding air.

[0052] A fan can also be installed at any point in the liquid heating device, and the fan dissipates heat to at least one of the water tank 100, the first pipe 300, the liquid heating unit 200, and the second pipe 400. In one embodiment of this application, the fan is located below the water tank 100, the first pipe 300, the liquid heating unit 200, and the second pipe 400.

[0053] According to one embodiment of this application, please refer to Figure 4 The first heat dissipation component 800 includes a first fan 810, which is used to dissipate heat from at least one of the water tank 100, the first pipe 300, the liquid heating unit 200, and the second pipe 400.

[0054] The first fan 810 can dissipate heat from at least one of the following: water tank 100, first pipe 300, liquid heating unit 200, and second pipe 400, depending on the actual situation and heat dissipation requirements of the device. For example, when the liquid heating unit 200 is in a high-power heating state, the first fan 810 can preferentially blow air onto it to quickly remove the heat generated by the heating unit. By rationally designing the installation position and airflow direction of the first fan 810, the airflow can be directed directly towards the heat sink or outer casing of the liquid heating unit 200, accelerating heat dissipation. For the water tank 100, the first fan 810 can be installed on one side or above the water tank 100, allowing the airflow to flow along the outer wall of the water tank 100, enhancing the heat exchange between the water tank 100 and the air. For the first pipe 300 and the second pipe 400, the first fan 810 can be installed near the pipes, allowing the airflow to flow around the pipes, improving the heat dissipation environment around the pipes.

[0055] According to one embodiment of this application, please refer to Figure 5 The first heat dissipation component 800 includes a first heat dissipation fin 820, which is disposed at least at one of the first pipe 300, the liquid heating unit 200, and the second pipe 400.

[0056] The first heat sink fin 820 can be made of a metal material with good thermal conductivity, such as aluminum, copper or iron.

[0057] The first heat dissipation fin 820 can be composed of multiple parallel fins with gaps between them, forming a good airflow channel. When the first heat dissipation fin 820 is installed on the first pipe 300, the liquid heating unit 200, or the second pipe 400, it can fit tightly against these heat-generating components. For example, the first heat dissipation fin 820 can be fixed to the target component by welding, riveting, or using thermally conductive adhesive to ensure good heat conduction.

[0058] During operation, the heat generated by the first pipe 300, the liquid heating unit 200, or the second pipe 400 is rapidly conducted to the first heat dissipation fins 820. Because the first heat dissipation fins 820 have a large surface area, they can effectively exchange heat with the surrounding air. Air flows within the gaps between the fins of the first heat dissipation fins 820, carrying away heat and thus achieving heat dissipation. Furthermore, the heat dissipation effect can be further optimized by rationally designing the shape, size, and fin spacing of the first heat dissipation fins 820. For example, increasing the height and number of fins can increase the heat dissipation area, but it also increases the resistance to airflow. Therefore, these factors need to be considered comprehensively to find the optimal heat dissipation design parameters.

[0059] Furthermore, the first heat dissipation fin 820 can be flexibly set at at least one of the first pipe 300, the liquid heating unit 200, and the second pipe 400 according to actual heat dissipation requirements. If the liquid heating unit 200 generates a large amount of heat and is the key area for heat dissipation, the first heat dissipation fin 820 can be mainly set on the liquid heating unit 200; if the temperature of the first pipe 300 or the second pipe 400 is high under specific operating conditions, the first heat dissipation fin 820 can also be set on these pipes accordingly, or the first heat dissipation fin 820 can be set at several locations simultaneously to achieve comprehensive and efficient heat dissipation.

[0060] According to one embodiment of this application, please refer to Figure 6 The liquid heating unit 200 includes a pump 210 and a heating component 220. The liquid heating device includes a second valve body 230 and a fourth pipeline 700. The second valve body 230 is provided between the pump 210 and the heating component 220. The outlet end of the pump 210 is connected to the first interface of the second valve body 230, the inlet end of the heating component 220 is connected to the second interface of the second valve body 230, the inlet end of the fourth pipeline 700 is connected to the third interface of the second valve body 230, and the outlet end of the fourth pipeline 700 is connected to the outlet end of the heating component 220. The second valve body 230 has a third state and a fourth state. In the third state, the first interface of the second valve body 230 is connected to the second interface of the second valve body 230. In the fourth state, the first interface of the second valve body 230 is connected to the third interface of the second valve body 230.

[0061] The liquid heating unit 200 consists of a pump 210 and a heating assembly 220. The pump 210 serves as a power element, providing power for the flow of liquid within the device. The heating assembly 220 is the key component for achieving liquid heating. The heating assembly 220 can employ electric heating, converting electrical energy into heat energy to heat the flowing liquid.

[0062] To achieve flexible control of the liquid flow direction, this embodiment provides a second valve body 230 between the pump 210 and the heating assembly 220. This second valve body 230 is a two-position three-way valve. The two-position three-way valve has two operating positions (third state and fourth state) and three ports (first port, second port, and third port). The outlet of the pump 210 is connected to the first port of the second valve body 230, the inlet of the heating assembly 220 is connected to the second port of the second valve body 230, the inlet of the fourth pipeline 700 is connected to the third port of the second valve body 230, and the outlet of the fourth pipeline 700 is connected to the outlet of the heating assembly 220.

[0063] The third and fourth states of the second valve body 230 have different liquid flow control functions. In the third state, the first port of the second valve body 230 is connected to the second port. At this time, after the pump 210 draws liquid from the water tank 100, the liquid flows out from the outlet of the pump 210, enters through the first port of the second valve body 230, and then flows out from the second port, entering the heating assembly 220 for heating. The heated liquid flows out from the outlet of the heating assembly 220 and enters the subsequent circulation or use stage.

[0064] In the fourth state, the first port of the second valve body 230 is connected to the third port. At this time, the liquid pumped by the pump 210 flows out from the outlet of the pump 210, enters through the first port of the second valve body 230, and then flows out from the third port into the fourth pipe 700. The liquid flows along the fourth pipe 700, exits from the outlet of the fourth pipe 700, and connects to the outlet of the heating assembly 220, bypassing the heating assembly 220. This avoids the liquid flowing through the heating assembly 220 when heating is not required, reducing energy waste and improving the energy efficiency of the device.

[0065] Furthermore, it should be noted that the pump 210 is not fixed at the water inlet of the heating element 220. Those skilled in the art can make adaptive adjustments based on actual conditions. When the pump 210 is positioned at the water outlet of the heating element 220, the liquid flow direction will be different, but the liquid flow direction can still be controlled via the second valve body 230 to achieve a similar function. This flexible design provides more possibilities for the optimization and improvement of the device, allowing technicians to select the most suitable pump 210 placement and valve control method according to specific application scenarios and requirements.

[0066] According to one embodiment of this application, the liquid heating device includes a second heat dissipation component 900, which includes a second fan 910 and a second heat dissipation fin 920. The second heat dissipation fin 920 is disposed on a fourth pipe 700, and the second fan 910 is used to dissipate heat from the fourth pipe 700.

[0067] The second heat dissipation component 900 mainly consists of a second fan 910 and a second heat dissipation fin 920, which work together to complete the heat dissipation task of the fourth pipe 700.

[0068] The second heat dissipation fin 920 can be made of a metal material with good thermal conductivity, such as aluminum alloy. The second heat dissipation fin 920 has a sheet-like structure and is installed on the fourth conduit 700 through a specific process. This design increases the contact area between the second heat dissipation fin 920 and the fourth conduit 700, improving heat transfer efficiency and allowing heat from the fourth conduit 700 to be quickly transferred to the second heat dissipation fin 920. Simultaneously, the sheet-like structure of the second heat dissipation fin 920 also increases the contact area with air, providing more space for heat dissipation.

[0069] The second fan 910 drives the fan blades to rotate via a motor, generating a powerful airflow. When the second fan 910 is working, the air flows rapidly under the action of the fan blades, forming an airflow. This airflow blows over the second heat dissipation fins 920, carrying away the heat from the surface of the second heat dissipation fins 920.

[0070] According to one embodiment of this application, please refer to Figures 7 to 10 The liquid heating unit 200 includes a pump 210 and a heating component 220. The pump 210 is used to accelerate the flow rate of the liquid, and the heating component 220 is used to heat the flowing liquid. The heating component 220 includes a water pipe 221 and a heater 222.

[0071] The heating assembly 220 is a key component for achieving liquid heating, and it consists of a water pipe 221 and a heater 222. The water pipe 221 serves as the channel for liquid flow and can be made of materials with good corrosion resistance and thermal conductivity, such as stainless steel or copper. The heater 222 is the component that generates heat, and various types are available depending on different designs and application scenarios.

[0072] This application provides three different configurations for the water pipe 221 and the heater 222 to meet different heating needs.

[0073] The first configuration involves placing the water pipe 221 on one side of the heater 222. Please refer to [the relevant documentation / reference]. Figure 7 In this structure, the heat generated by the heater 222 is transferred to the water pipe 221 on one side through heat conduction and convection. For example, in a small liquid heating device, the heater 222 is a flat electric heating plate, with the water pipe 221 attached to one side. When the heater 222 is powered on, heat is transferred to the water pipe 221, and the liquid in the water pipe 221 absorbs the heat and its temperature gradually increases.

[0074] In one embodiment, please refer to Figure 8The heating assembly 220 is also provided with a heating housing 223. The heating housing 223 has an installation cavity inside, and the water pipe 221 and the heater 222 are both located inside the housing, with the water pipe 221 located on one side of the heater 222.

[0075] The second configuration is that heater 222 is a column heater 222. Please refer to [the relevant documentation]. Figure 9 A water pipe 221 is fitted onto a heater 222. The column-shaped heater 222 has a large surface area, enabling it to provide more heat. The water pipe 221, fitted onto its exterior, fully utilizes the heat from the heater 222, increasing the heat exchange area. The column-shaped heater 222 is made with a highly efficient electric heating element, capable of generating a large amount of heat in a short time. The water pipe 221 is tightly fitted onto the heater 222, allowing for thorough heat exchange with the entire outer surface of the heater 222 as the liquid flows rapidly within it, thus heating the water to the required temperature in a very short time. This structure significantly improves heating efficiency and meets users' needs for rapid hot water supply.

[0076] The third configuration is that heater 222 is a tubular heater 222. Please refer to [the relevant documentation]. Figure 10 A water pipe 221 is inserted through the heater 222. The tubular heater 222 has a certain internal space through which the water pipe 221 is inserted. When the liquid flows inside the water pipe 221, it can directly exchange heat with the heating element inside the heater 222. This structure has a shorter heat transfer path and higher heat exchange efficiency.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of this application do not depart from the spirit and scope of the technical solutions of this application and should be covered within the scope of the claims of this application.

Claims

1. A liquid heating device, characterized in that, include: Water tank (100); Liquid heating unit (200); First pipeline (300); Second pipeline (400); Third pipeline (500); Outlet (600); The first pipeline (300) is equipped with the liquid heating unit (200), which is used to heat the liquid flowing through the first pipeline. The water tank (100) is connected to the inlet end of the first pipeline (300), and the outlet end of the first pipeline (300) is connected to the water tank through the second pipeline (400) to form a circulating water boiling circuit. The outlet end of the first pipeline (300) is connected to the outlet (600) through the third pipeline (500) to form an instant hot water outlet passage.

2. The liquid heating device of claim 1, wherein, The liquid heating device includes a switching valve (510), which is located on the third pipeline (500) and is used to switch the on / off state of the third pipeline (500).

3. The liquid heating device of claim 1, wherein, The liquid heating device includes a first valve body (410), which is located at the connection between the circulating water boiling circuit and the instant hot water outlet passage. The outlet end of the first pipe (300) is connected to the first interface of the first valve body (410), the second pipe (400) is connected to the second interface of the first valve body (410), and the third pipe (500) is connected to the third interface of the first valve body (410). The first interface of the first valve body (410) is adapted to selectively connect either the second interface of the first valve body (410) or the third interface of the first valve body (410).

4. The liquid heating device according to claim 1, characterized in that, The liquid heating device includes a one-way valve (420), which is located on the second pipeline (400) and is used to control the fluid in the second pipeline (400) to flow unidirectionally toward the water tank (100).

5. The liquid heating device of any one of claims 1 to 4, wherein, The liquid heating device includes a first heat dissipation component (800) for dissipating heat from at least one of the water tank (100), the first pipeline (300), the liquid heating unit (200), and the second pipeline (400).

6. The liquid heating device of claim 5, wherein, The first heat dissipation assembly (800) includes a first fan (810) for dissipating heat from at least one of the water tank (100), the first pipeline (300), the liquid heating unit (200), and the second pipeline (400).

7. The liquid heating device according to any one of claims 1 to 4, characterized in that, The liquid heating unit (200) includes a pump (210) and a heating component (220). The liquid heating device includes a second valve body (230) and a fourth pipeline (700). The second valve body (230) is provided between the pump (210) and the heating component (220). The outlet end of the pump (210) is connected to the first interface of the second valve body (230). The inlet end of the heating component (220) is connected to the second interface of the second valve body (230). The inlet end of the fourth pipeline (700) is connected to the third interface of the second valve body (230). The outlet end of the fourth pipeline (700) is connected to the outlet end of the heating component (220). The first interface of the second valve body (230) is adapted to selectively connect either the second interface or the third interface of the second valve body (230).

8. The liquid heating device of any one of claims 1-4, wherein, The liquid heating unit (200) includes a pump (210) and a heating component (220), wherein the pump (210) is used to control the liquid flow rate and the heating component (220) is used to heat the liquid flowing through it.

9. The liquid heating device according to claim 8, characterized in that, The heating assembly (220) includes a water pipe (221) and a heater (222). The water pipe (221) is located on one side of the heater (222). Alternatively, the heater (222) is a column heater (222), and the water pipe (221) is sleeved on the heater (222). Alternatively, the heater (222) is a tubular heater (222), and the water pipe (221) passes through the heater (222).

10. The liquid heating device of any one of claims 1-4, wherein, It includes a first heat dissipation fin (820), which is disposed at least at one of the first pipeline (300), the liquid heating unit (200) and the second pipeline (400).

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