Heating component and water dispenser

Abstract

The present invention discloses a heating assembly and a water dispenser, comprising a heating tube, a liquid storage chamber, a pump, a liquid inlet, and a liquid outlet. The pump is connected to the liquid storage chamber and the pump is connected to the liquid inlet. The heating tube has a fluid inlet and a fluid outlet. The fluid inlet is located at the bottom of the heating tube and is connected to the liquid storage chamber. The fluid outlet is located at the top of the heating tube and is connected to the liquid outlet. The bottom of the liquid storage chamber is lower than the top of the heating tube. The heating assembly has a liquid level detector capable of detecting the liquid level in the liquid storage chamber. The liquid storage chamber has a first position and a second position. The vertical height of the fluid outlet position of the heating tube is less than or equal to the vertical height of the first position and greater than or equal to the vertical height of the second position. When the liquid level detector detects that the liquid level in the liquid storage chamber is lower than the second position, the pump is started; when the liquid level detector detects that the liquid level in the liquid storage chamber is higher than the first position, the pump is stopped. The present invention provides a structure that can quickly heat liquid and has simple temperature control.

Description

Technical Field

[0001] The invention belongs to the field of instant electric heating. Background Art

[0002] In a water dispenser or beverage machine, the heating chamber and water storage chamber are one and the same. A temperature sensor is also installed. When the hot water temperature measured by the temperature sensor reaches a set temperature, heating stops. Some water dispensers also have a reheating function. If the temperature of the liquid in the water storage chamber falls below the set temperature, the machine's heating function activates to heat the liquid. In a water dispenser or beverage machine, the temperature sensor is a key temperature control component. If the temperature sensor is damaged or fails, the machine will not function properly. Summary of the Invention

[0003] The object of the present invention is to provide a heating component and a water dispenser with simple and safe temperature control.

[0004] In order to achieve the above purpose, the following technical solutions are adopted:

[0005] A heating assembly comprising a heating tube, a liquid storage chamber, a pump, a liquid inlet, and a liquid outlet, wherein the outlet of the pump is connected to the inlet of the liquid storage chamber, the inlet of the pump is connected to the liquid inlet, the heating tube has a fluid inlet and a fluid outlet, the fluid inlet is located at the bottom of the heating tube, the fluid inlet is connected to the outlet of the liquid storage chamber, the fluid outlet is located at the top of the heating tube, the fluid outlet is connected to the liquid outlet, and the liquid storage chamber and the heating tube are connected in series to form a U-shaped flow channel;

[0006] The bottom of the liquid storage chamber is lower than the top of the heating tube. The heating component has a liquid level detector, which can detect the liquid level in the liquid storage chamber. The liquid storage chamber is preset with a first position and a second position. The vertical height of the fluid outlet position of the heating tube is less than or equal to the vertical height of the first position and greater than or equal to the vertical height of the second position. When the liquid level detector detects that the liquid level in the liquid storage chamber is lower than the second position, the pump starts, and when the liquid level detector detects that the liquid level in the liquid storage chamber is higher than the first position, the pump stops.

[0007] A water dispenser includes a heating assembly according to the above technical solution. The water dispenser includes an outer shell and a cover. The cover is fixed to the outer shell, and the heating assembly is located in a space enclosed by the outer shell and the cover.

[0008] The liquid storage chamber and the heating tube of the above technical solution are connected in series to form a U-shaped flow channel. The liquid enters the liquid storage chamber and the heating tube through the liquid inlet. The liquid is heated in the heating tube. Based on the density difference between the hot liquid and the cold liquid, the hot liquid flows out from the liquid outlet. Since the liquid level in the liquid storage chamber is controlled by the liquid level detector and the pump, the vertical height of the fluid outlet position of the heating tube is less than or equal to the vertical height of the first position and greater than or equal to the vertical height of the second position. In this way, hot liquid at the set temperature can be provided, and temperature control is simple and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic diagram of the structure of a heating component of the present invention;

[0010] Figure 2 for Figure 1 A schematic diagram of a state of the heating component;

[0011] Figure 3 This is a schematic structural diagram of an embodiment of a liquid collecting box of a heating assembly of the present invention;

[0012] Figure 4 A schematic structural diagram of an embodiment of a partition of a heating assembly of the present invention;

[0013] Figure 5 A schematic structural diagram of an embodiment of a fixing frame and a circuit board of a heating assembly of the present invention;

[0014] Figure 6 A schematic structural diagram of another embodiment of a partition of a heating assembly of the present invention;

[0015] Figure 7 A schematic structural diagram of another heating assembly of the present invention;

[0016] Figure 8 This is a diagram of the usage status of an embodiment of the water dispenser of the present invention. DETAILED DESCRIPTION

[0017] Reference Figure 1 , Figure 1 A schematic diagram of the structure of a heating component 100 is shown. It should be understood that Figure 1 The schematic diagram of the structure is only for illustration and is not intended to be a complete limitation on the structure of the heating component.

[0018] The heating assembly 100 includes a heating tube 11, a liquid storage chamber 12, a pump 13, a liquid inlet 14, and a liquid outlet 15. The outlet of the pump 13 is connected to the inlet of the liquid storage chamber 12, which in turn is connected to the liquid inlet 14. The heating tube 11 is a tubular structure, through which a preheating fluid flows. The heating tube 11 has a fluid inlet 111 and a fluid outlet 112. The fluid inlet 111 is located at the bottom 11b of the heating tube 11 and is connected to the outlet of the liquid storage chamber 12. The fluid outlet 112 is located at the top 11a of the heating tube 11 and is connected to the liquid outlet 15. The liquid storage chamber 12 and the heating tube 11 are connected in series to form a U-shaped flow channel. The liquid storage chamber 12 is located to one side of the fluid outlet 112 of the heating tube 11, adjacent to the top 11a of the heating tube 11, with the bottom of the liquid storage chamber 12 lower than the top 11a of the heating tube 11. In this article, the connection between component A and component B includes direct connection between component A and component B, and also includes connection between component A and component B by setting one or more components; in this article, the U-shaped flow channel is not limited to U-shape, and includes other U-shaped structures such as right-angled, angled, or corrugated shapes. The U-shaped flow channel includes a flow channel formed by a single component, for example, a U-shaped tube, etc.; it also includes a flow channel formed by two or more components, for example, a connecting seat is set below the heating tube 11, a connecting piece is set in the liquid storage chamber, and an approximately U-shaped flow channel between the connecting piece of the liquid storage chamber and the connecting seat below the heating tube.

[0019] The heating assembly 100 has a liquid level detector 16, which can detect the liquid level in the liquid storage chamber 12. The liquid level detector 16 can be an insertion type, that is, at least part of the liquid level detector 16 extends into the liquid storage chamber 12. Figure 1 In the embodiment, the liquid level detector 16 is only shown as being located in the liquid storage chamber 12. In other cases, the liquid level detector 16 may also be partially located in the liquid storage chamber. The liquid level detector 16 may also not extend into the liquid storage chamber 12, for example, it may be attached to the wall of the heating component, such as the outer wall of the liquid storage chamber 12.

[0020] The liquid storage chamber 12 has a first position 161 and a second position 162. The vertical height of the fluid outlet 112 of the heating tube 11 is less than or equal to the vertical height of the first position 161 and greater than or equal to the vertical height of the second position 162. Herein, the vertical height refers to the height relative to the bottom of the heating assembly or a common reference object. The pump starts and stops based on the liquid level detected by the liquid level detector and compared with the first position 161 and the second position 162. The first position 161 and the second position 162 are related to the position of the fluid outlet 112 of the heating tube 11. The liquid in the liquid storage chamber at the first position 161 and the second position 162 can be used to control the liquid temperature of the fluid outlet 112 of the heating tube 11, so that the heating assembly provides hot liquid at a set temperature.

[0021] The difference between the vertical height of first position 161 and the vertical height of fluid outlet 112 of heating tube 11 is no greater than 10 mm, and the difference between the vertical height of fluid outlet 112 and the vertical height of second position 162 is no greater than 10 mm, which helps to discharge hot liquid to meet user drinking needs. Liquid level detector 16 may include a reed switch, a float, a float, a sensor, etc. Herein, "no greater than" includes this number.

[0022] Reference Figure 1 、 Figure 2 and Figure 7 , Figure 1 、 Figure 2 、 Figure 7 Schematically shows different states of an embodiment of a liquid level detector, the liquid level detector can be in the form of a float, for example, the first position 161 of the liquid storage chamber is a high liquid level in the form of a float, for example Figure 7 As shown in FIG, the second position 162 of the liquid storage chamber is a low liquid level in the form of a float, for example Figure 2 This is merely an example. If the liquid level detector is mechanical, the first position 161 and the second position 162 can be understood as the locations of the mechanical positions of the liquid level detector in the liquid storage chamber. If the liquid level detector is non-mechanical, the first position 161 and the second position 162 are preset positions in the liquid storage chamber.

[0023] Pump 13 is activated based on the liquid level in liquid storage chamber 12. When liquid level detector 16 detects that the liquid level in liquid storage chamber 12 is above first position 161, pump 13 stops. When liquid level detector 16 detects that the liquid level in liquid storage chamber 12 is below second position 162, pump 13 starts again. While liquid in liquid storage chamber 12 enters heating tube 11 and is heated, pump 13 can be activated intermittently to save energy.

[0024] The pump 13 pumps the liquid entering the liquid inlet 14 to the liquid storage chamber 12. After the liquid in the liquid storage chamber 12 enters the heating tube 11, it is heated in the heating tube 11. There is a density difference between the hot liquid and the cold liquid. In the case of boiling, the steam will push the hot liquid upward, and the boiling liquid overflows from the fluid outlet 112 of the heating tube. In addition, since the liquid level in the liquid storage chamber 12 is controlled between the first position and the second position, on the one hand, the liquid in the liquid storage chamber has a certain pressure difference relative to the liquid in the heating tube, and on the other hand, the temperature of the liquid outlet can be controlled at the set temperature. When the user needs to use hot liquid, the user starts the heating component, the heating component heats up quickly, and provides hot liquid from the liquid outlet 15. The cold liquid is quickly heated to hot liquid through the heating tube, and it is heated immediately when used, with high energy utilization rate. At the same time, since the liquid outlet temperature can be the set temperature, the temperature control is simple and safe.

[0025] The heating assembly 100 has a hot liquid chamber 17. The fluid outlet 112 of the heating tube 11 is in communication with the hot liquid chamber 17. The liquid outlet 15 is in communication with the hot liquid chamber 17. The space above the hot liquid chamber 17 can be in communication with the space above the liquid storage chamber 12. The heating assembly 100 has a communication hole or communication groove 103, and the space above the hot liquid chamber 17 and the space above the liquid storage chamber 12 are connected through the communication hole or communication groove 103. This allows high-temperature steam to enter the liquid storage chamber 12, recovering heat and increasing the thermal efficiency of the heating assembly. At the same time, it also reduces the amount of steam at the liquid outlet 15, which helps to improve the user experience.

[0026] Specifically, the heating assembly 100 includes a first baffle wall 101 and a second baffle wall 102. The first baffle wall 101 is located around the top of the heating tube 11, and the second baffle wall 102 forms a portion of the wall of the liquid storage chamber 12. The top of the second baffle wall 102 is higher than the top of the first baffle wall 101. The top of the first baffle wall 101 is no higher than the first position 161, and the vertical height of the first position 161 is lower than the top of the second baffle wall 102. The communication hole or communication groove 103 is located in the second baffle wall 102 and is located higher than the top of the first baffle wall 101. The first baffle wall 101 can be used to prevent liquid in the hot liquid chamber 17 from flowing back into the heating tube 11, and the second baffle wall 102 can be used to prevent hot liquid in the hot liquid chamber 17 from entering the liquid storage chamber 12.

[0027] Combined with reference Figure 1 and Figure 3 The heating component 100 has a liquid collecting box body 18, which has a liquid storage chamber 12 and a hot liquid chamber 17. The second baffle wall 102 is located between the liquid storage chamber 12 and the hot liquid chamber 17. The liquid outlet 15 is located at the bottom of the hot liquid chamber 17 corresponding to the liquid collecting box body 18. The first baffle wall 101 and the second baffle wall 102 protrude from the bottom of the liquid collecting box body 18. The liquid storage chamber 12 and the hot liquid chamber 17 can be formed as one piece. The liquid collecting box body 18 can be a plastic part formed by integral injection molding. The liquid storage chamber 12 and the hot liquid chamber 17 are formed by injection molding in the liquid collecting box body. The processing is convenient, the cost is low, and the structure is simple.

[0028] There is an air guide column 181 in the hot liquid chamber 17, and the air guide column 181 is protruded from the bottom of the liquid collecting box 18. The air guide column 181 has a through hole 182. The protrusion height of the air guide column 181 protruding from the bottom of the liquid collecting box 18 is higher than the protrusion height of the first baffle wall 101. The air guide column 181 is closer to the heating tube 11 relative to the liquid outlet 15, which helps the hot steam coming out of the heating tube 11 to leave from the air guide column 181, or enter the liquid storage chamber 12 from the connecting groove 103. On the one hand, it can reduce the amount of steam coming out of the liquid outlet 15 and improve the user experience. On the other hand, it can maintain the balance of air pressure between the hot liquid chamber and the external environment, and reduce the influence of unstable air pressure on liquid discharge.

[0029] Combined with reference Figure 1 and Figure 4 The heating assembly 100 includes a partition 19, which is fixed to the liquid collecting tank 18. The second retaining wall 102 includes a connecting groove 103, through which the hot steam in the hot liquid chamber 17 can enter the liquid storage chamber 12. The partition 19 includes a positioning platform 191, on which the liquid level detector 16 can be restrained. The positioning of the liquid level detector 16 is simple, reliable, and easy to operate.

[0030] Liquid collection box 18 may also include a reserve liquid chamber 183, which is connected to pump 13 and can be used to hold liquid from an external bottle or tank, which is then pumped to liquid storage chamber 12 via pump 13. The reserve liquid chamber 183 is integrally formed in liquid collection box 18, resulting in a simple structure and easy processing. Liquid inlet 14 may also be provided in liquid collection box 18, serving as the opening of reserve liquid chamber 183.

[0031] Return to reference Figure 1 The heating assembly 100 includes an inner housing 113. At least a portion of the heating tube 11 is disposed within the inner housing 113. The heating tube 11 is fixed to the inner housing 113. The inner housing 113 is thermally conductive and has a fluid channel 114. One end of the fluid channel 114 is connected to the pump 13, and the other end of the fluid channel 114 is connected to the liquid storage chamber 12. Liquid pumped into the fluid channel 114 by the pump 13 enters the fluid channel 114. Because the inner housing 113 can absorb the heat radiated by the heating tube 11, the inner housing 113 can be used to preheat the liquid in the fluid channel 114, further utilizing the heat and improving the thermal efficiency of the heating assembly. At the same time, the inner housing 113 can also cool the liquid in the fluid channel 114, helping to reduce the temperature of the inner housing and extend the service life of the heating assembly.

[0032] The heating assembly 100 includes a connecting tube 104, which connects the liquid storage chamber 12 and the heating tube 11. The connecting tube 104 is U-shaped, forming a U-shaped flow channel between the liquid storage chamber 12 and the heating tube. The inner diameter of the connecting tube 104 is no less than 3 mm. Providing this connection between the liquid storage chamber 12 and the heating tube 11 helps reduce costs. The connecting tube 104 can be made of silicone, plastic, or rubber tubing. Furthermore, the inner diameter of the connecting tube 104 is no less than 3 mm, minimizing resistance to liquid flow. The inner diameter of the connecting tube can range from 3 mm to 12 mm. The heating tube 11 includes an electric heating film 115 and a substrate. The electric heating film 115 is applied to the surface of the substrate. The electric heating film 115 can be a nanofilm. When power is applied to the heating tube 11, the electric heating film 115 generates heat, heating the liquid within the heating tube 11. Because the electric heating film 115 heats rapidly, the liquid passing through the heating tube 11 is rapidly heated. The inner diameter of the heating tube 11 can be between 10 mm and 30 mm.

[0033] Reference Figure 5 , Figure 5The schematic diagram of the structure of the fixing frame of the heating component is shown. The heating component 100 has a fixing frame 20 and a circuit board 21. The fixing frame 20 has a frame body 201, a hoop portion 202, a support seat 203 and an annular body 204. The hoop portion 202, the support seat 203 and the annular body 204 protrude from the frame body 201. The pump 13 is fixed to the hoop portion 202 of the fixing frame 20. The circuit board 21 is fixed to the support seat 203 of the fixing frame 20. At least part of the heating tube 11 is located in the annular body 204 for limiting.

[0034] As another embodiment, referring to Figure 1 and Figure 6 , Figure 6 The structure of the partition 19 ′ is shown schematically. The partition 19 ′ has a platform portion 192 , and the circuit board is fixed to the platform portion 192 .

[0035] As another embodiment, refer to Figure 7 , Figure 7 The schematic structural diagram of the heating component 200 is shown. The heating component 200 includes a first liquid storage tank 18a and a second liquid storage tank 18b. The first liquid storage tank 18a has a liquid storage cavity 12, and the second liquid storage tank 18b has a hot liquid cavity 17.

[0036] The heating assembly 200 has a first baffle wall 101 and a second baffle wall 102. Specifically, the first liquid storage tank 18a has a second baffle wall 102, the second liquid storage tank 18b has a first baffle wall 101, and the second liquid storage tank 18b has a third baffle wall 105. The first baffle wall 101 is located on the top circumferential side of the heating tube 11. The top of the first baffle wall 101 is not higher than the first position 161, and the vertical height of the first position 161 is lower than the top of the second baffle wall 102. The second baffle wall 102 is a part of the wall of the liquid storage chamber 12, and the third baffle wall 105 is a part of the wall of the hot liquid chamber 17. The second baffle wall 102 and the third baffle wall are located between the liquid storage chamber 12 and the hot liquid chamber 17, and the liquid outlet 15 is located at the bottom of the first liquid storage tank 18a.

[0037] The top of the third baffle wall 105 is higher than the top of the first baffle wall 101, and the top of the second baffle wall 102 is higher than the top of the first baffle wall 101. The second baffle wall 102 has a first communication hole or communication groove 103a, and the third baffle wall 105 has a second communication hole or second communication groove 103b. The first communication hole or communication groove 103a is located higher than the top of the first baffle wall 101. The first communication hole or first communication groove 103a connects the second baffle wall 102 and the third baffle wall 105, and the second communication hole or second communication groove 103b connects the second baffle wall 102 and the third baffle wall 105. The first baffle wall 101 can be used to prevent the liquid in the hot liquid chamber 17 from flowing back into the heating tube 11. The second baffle wall 102 and the third baffle wall 105 can be used to prevent the hot liquid in the hot liquid chamber 17 from entering the liquid storage chamber 12. The connecting hole 103 connects the second baffle 102 and the third baffle 105, allowing high-temperature steam to enter the liquid storage chamber 12, recovering heat, increasing the thermal efficiency of the heating component, and also reducing the amount of steam at the liquid outlet 15, which helps to improve user experience.

[0038] The heating component can be used in instant hot water dispensers, coffee machines, beverage machines and other liquid heating machines. The heating component of the above embodiment can be used in water dispensers, for example, Figure 8 , Figure 8 The following diagram illustrates the structure of a water dispenser 10 in use. The dispenser 10 comprises a cover 1 and an outer shell 2. The cover 1 is fixed to the outer shell 2, and the heating assembly is located within the space enclosed by the outer shell 2 and the cover 1. The cover 1 and the outer shell 2 can be secured together using a snap-fit mechanism. During use, the dispenser 10 is connected to, for example, a water bottle 3 to provide a water source. Alternatively, the dispenser 10 can be connected to a water tank. The cover 1 has a one-way valve. When the pump is activated, the one-way valve opens, allowing water from the bottle to enter the liquid reserve chamber 183. When the pump is deactivated, the one-way valve closes.

Claims

1. A heating assembly comprising a heating tube, a liquid storage chamber, a pump, a liquid inlet, and a liquid outlet, characterized in that: The outlet of the pump is connected to the inlet of the liquid storage chamber, and the inlet of the pump is connected to the liquid inlet. The heating tube has a fluid inlet and a fluid outlet. The fluid inlet is located at the bottom of the heating tube, and the fluid inlet is connected to the outlet of the liquid storage chamber. The fluid outlet is located at the top of the heating tube, and the fluid outlet is connected to the liquid outlet. The liquid storage chamber and the heating tube are connected in series to form a U-shaped flow channel. The bottom of the liquid storage chamber is lower than the top of the heating tube, and the heating component has a liquid level detector, which can detect the liquid level in the liquid storage chamber. The liquid storage chamber is preset with a first position and a second position, and the vertical height of the fluid outlet position of the heating tube is less than or equal to the vertical height of the first position and greater than or equal to the vertical height of the second position; when the liquid level detector detects that the liquid level in the liquid storage chamber is lower than the second position, the pump starts; when the liquid level detector detects that the liquid level in the liquid storage chamber is higher than the first position, the pump stops; the heating component has a working state, in which the liquid in the liquid storage chamber enters the heating tube and is heated, and the boiling liquid overflows from the fluid outlet. The liquid in the liquid storage chamber has a pressure difference with the liquid in the heating tube, and the temperature of the liquid outlet can be controlled to be at a set temperature; The heating component has a hot liquid cavity, the fluid outlet of the heating tube is connected to the hot liquid cavity, the liquid outlet is connected to the hot liquid cavity, and the space above the hot liquid cavity is connected to the space above the liquid storage cavity; the hot liquid cavity has an air guide column, the air guide column is protruded from the bottom of the liquid collecting box, and the air guide column is located between the fluid outlet and the liquid outlet.

2. The heating assembly according to claim 1, characterized in that: The height difference between the vertical height of the first position and the vertical height of the fluid outlet position of the heating tube is not higher than 10 mm, and the height difference between the vertical height of the fluid outlet position of the heating tube and the vertical height of the second position is not higher than 10 mm.

3. The heating assembly according to claim 1 or 2, characterized in that: The liquid storage cavity is arranged adjacent to the top of the heating tube, and the heating component has a communication hole or a communication groove, and the communication hole or the communication groove connects the space above the hot liquid cavity with the space above the liquid storage cavity.

4. The heating assembly according to claim 3, characterized in that: The heating assembly has a first baffle wall and a second baffle wall, the first baffle wall is located on the top circumferential side of the heating tube, the second baffle wall is a portion of the wall of the liquid storage chamber, the top of the second baffle wall is higher than the top of the first baffle wall, the top of the first baffle wall is not higher than the first position, the communicating hole or communicating groove is located in the second baffle wall, the position of the communicating hole or communicating groove is higher than the top of the first baffle wall, and the vertical height of the first position is lower than the top of the second baffle wall.

5. The heating assembly according to claim 4, characterized in that: The heating component has a liquid collecting box body, which contains the liquid storage cavity and the hot liquid cavity. The second baffle wall is located between the liquid storage cavity and the hot liquid cavity. The liquid outlet is located at the bottom corresponding to the hot liquid cavity of the liquid collecting box body. The first baffle wall and the second baffle wall protrude from the bottom of the liquid collecting box body.

6. The heating assembly according to claim 3, characterized in that: The heating assembly has a first liquid storage tank and a second liquid storage tank, the liquid storage chamber is located in the first liquid storage tank, and the hot liquid chamber is located in the second liquid storage tank. The first liquid storage tank has a second baffle wall, the second liquid storage tank has a first baffle wall, and the second liquid storage tank has a third baffle wall. The first baffle wall is located on the top peripheral side of the heating tube, the top of the first baffle wall is not higher than the first position, and the vertical height of the first position is lower than the top of the second baffle wall. The second baffle wall is a part of the wall of the liquid storage chamber, the top of the second baffle wall is higher than the top of the first baffle wall, and the top of the third baffle wall is higher than the top of the first baffle wall. The second baffle wall has a first connecting hole or a first connecting groove, and the third baffle wall has a second connecting hole or a second connecting groove. The position of the first connecting hole or the second connecting groove is higher than the top of the first baffle wall, and the position of the first connecting hole or the second connecting groove is higher than the top of the first baffle wall. The first connecting hole or the first connecting groove connects the second baffle wall and the third baffle wall, and the second connecting hole or the second connecting groove connects the second baffle wall and the third wall.

7. The heating assembly according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The heating assembly includes an inner shell, at least a portion of the heating tube is disposed in the inner shell, and the heating tube is fixed to the inner shell, the inner shell has thermal conductivity, and the inner shell has a fluid channel, one end of the fluid channel is connected to the outlet of the pump, and the other end of the fluid channel is connected to the inlet of the liquid storage chamber.

8. The heating assembly according to claim 4, 5 or 6, characterized in that: The air guide column has a through hole. The protrusion height of the air guide column protruding from the bottom of the hot liquid chamber is higher than the protrusion height of the first baffle wall. The air guide column is closer to the heating tube than the liquid outlet.

9. The heating assembly according to claim 3, characterized in that: The air guide column has a through hole. The protrusion height of the air guide column protruding from the bottom of the hot liquid chamber is higher than the protrusion height of the first baffle wall. The air guide column is closer to the heating tube than the liquid outlet.

10. The heating assembly according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The heating assembly has a connecting pipe, which connects the liquid storage chamber and the heating pipe. The connecting pipe is U-shaped and has an inner diameter of not less than 3 mm. The inner diameter of the heating pipe is between 10 mm and 30 mm. The heating component includes a fixing frame and a circuit board, the pump is fixed to the fixing frame, and the circuit board is fixed to the fixing frame; or the heating component includes a partition and a circuit board, the partition encloses the hot liquid chamber, the partition has a platform portion, and the circuit board is fixed to the platform portion.

11. A water dispenser comprising a heating assembly according to any one of claims 1 to 10, the water dispenser comprising an outer shell and a cover, the cover being fixed to the outer shell, and the heating assembly being located in a space enclosed by the outer shell and the cover.

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