CN114391760A

CN114391760A - Heating device and hot water purifying dispenser with same

Info

Publication number: CN114391760A
Application number: CN202210074895.8A
Authority: CN
Inventors: 郑礼政; 申鸿海; 王剑锋; 陈子斌; 高威; 向海涛
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-04-26

Abstract

The invention provides a heating device and a hot water dispenser with the same, wherein the heating device is used for being communicated with a water outlet nozzle of the hot water dispenser, and comprises: the first pipeline assembly comprises a first connecting pipe, a first heating element and a first temperature detection element, and an outlet of the first connecting pipe is used for being communicated with the water outlet nozzle; the first heating element is used for heating the pure water in the first connecting pipe; the first temperature detecting member is for detecting a first temperature of pure water in the first connecting pipe, and when the first temperature detecting member detects that the first temperature reaches a first predetermined temperature, the first heating member is stopped from heating. The heating device solves the problem that the outlet water temperature of the clean hot water dispenser in the prior art can not be adjusted to a specific temperature.

Description

Heating device and hot water purifying dispenser with same

Technical Field

The invention relates to the technical field of household appliances, in particular to a heating device and a hot water purifying dispenser with the same.

Background

At present, the water purification link of common purified hot water dispensers in the market is mostly carried out by three to more than four filter elements, and the heating mode is also mostly a heating pipe of a quick heating module. The problems of large volume and complicated filter element replacement of the clean hot water dispenser caused by excessive filter elements are solved. In addition, the water temperature of the quick heating module adopting the over-current heating can not be adjusted to a specific temperature, a user can not select water with a proper temperature according to the will, and the maximum heating water temperature of the clean hot water dispenser can only reach about 93 ℃ and can not reach a real boiling state. In summary, the user experience of the clean hot water dispenser in the prior art is poor.

Disclosure of Invention

The invention mainly aims to provide a heating device and a hot water dispenser with the same, and aims to solve the problem that the outlet water temperature of the hot water dispenser in the prior art cannot be adjusted to a specific temperature.

In order to achieve the above object, according to one aspect of the present invention, there is provided a heating device for communicating with a water outlet nozzle of a hot water dispenser, the heating device comprising: the first pipeline assembly comprises a first connecting pipe, a first heating element and a first temperature detection element, and an outlet of the first connecting pipe is used for being communicated with the water outlet nozzle; the first heating element is used for heating the pure water in the first connecting pipe; the first temperature detecting member is for detecting a first temperature of pure water in the first connecting pipe, and when the first temperature detecting member detects that the first temperature reaches a first predetermined temperature, the first heating member is stopped from heating.

Further, first pipeline subassembly still includes first temperature controller, and first temperature controller and first temperature detect a communication connection, and when first temperature detected a first temperature and reached first predetermined temperature, first temperature controller control first heating member stopped the heating.

Further, the heating device further includes: the second pipeline component comprises a second connecting pipe, a heating tank and a second heating element arranged in the heating tank, wherein the first end of the second connecting pipe is communicated with the outlet of the heating tank, and the second end of the second connecting pipe is used for being communicated with the water outlet nozzle; when the first pipeline component is communicated with the water outlet nozzle, the second pipeline component is disconnected with the water outlet nozzle; when the second pipeline component is communicated with the water outlet nozzle, the first pipeline component is disconnected with the water outlet nozzle.

Furthermore, the heating device also comprises a pure water tank, a third connecting pipe, a fourth connecting pipe and a reversing component, wherein the reversing component is provided with a first communicating port, a second communicating port and a third communicating port; the first end of the fourth connecting pipe is communicated with the outlet of the pure water tank, the second end of the fourth connecting pipe is communicated with the first communicating port, the second communicating port is communicated with the inlet of the first connecting pipe, the third communicating port is communicated with the first end of the third connecting pipe, and the second end of the third connecting pipe is communicated with the inlet of the heating tank; the reversing component has a first communication state and a second communication state, the reversing component is switched between the first communication state and the second communication state, when the reversing component is in the first communication state, the first communication port is communicated with the second communication port, and the first communication port is disconnected with the third communication port; when the reversing component is in the second communication state, the first communication port and the second communication port are disconnected, and the first communication port and the third communication port are communicated.

Further, the second pipe assembly further comprises: and the second temperature detection piece is connected with the heating tank and used for detecting the second temperature of the pure water in the heating tank, and when the second temperature detection piece detects that the second temperature reaches a second preset temperature, the second heating piece is stopped heating.

Further, the second pipe assembly further comprises: and the check valve is arranged on the second connecting pipe and is positioned between the heating tank and the water outlet nozzle.

Further, the second pipe assembly further comprises: and the first water pump is arranged on the second connecting pipe and is positioned between the heating tank and the check valve.

According to another aspect of the invention, a clean hot water dispenser is provided, which comprises a heating device and a water outlet nozzle, wherein the heating device is the heating device.

Furthermore, the hot water purifying water dispenser also comprises a filter assembly, wherein the first end of the filter assembly is used for introducing raw water, and the second end of the filter assembly is communicated with the inlet of the pure water tank of the heating device; wherein, the filter assembly includes a first filter element and a second filter element.

Further, the first filter element comprises PP cotton, first activated carbon and second activated carbon; the second filter element comprises a reverse osmosis membrane inner core.

Further, the water outlet nozzle is provided with a water outlet for water outlet and an exhaust port for exhaust; the air outlet and the water outlet are positioned on two opposite sides of the water outlet nozzle; and/or, the hot water purifying dispenser also comprises an exhaust pipe, and one end of the exhaust pipe is communicated with the exhaust port.

The heating device is used for being communicated with a water outlet nozzle of a hot water dispenser, so that pure water flows out of the water outlet nozzle after being heated by the heating device. The first pipeline component of the heating device comprises a first connecting pipe, a first heating element and a first temperature detection element, wherein an outlet of the first connecting pipe is used for being communicated with a water outlet nozzle; the first heating element is used for heating the pure water in the first connecting pipe; the first temperature detecting member is for detecting a first temperature of pure water in the first connecting pipe, and when the first temperature detecting member detects that the first temperature reaches a first predetermined temperature, the first heating member is stopped from heating. This heating device passes through the heating and the detection function of first heating member and first temperature detection spare, makes the pure water in the first connecting tube can heat and reach predetermined temperature, and then can adjust the temperature of the pure water in the first connecting tube, and then can adjust the play water temperature of faucet, has solved the problem that the play water temperature of the clean hot water dispenser among the prior art can not adjust to specific temperature.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

figure 1 shows a schematic view of an embodiment of a hot clean water dispenser according to the invention;

fig. 2 shows a schematic view of an embodiment of a heating device according to the invention;

figure 3 shows a schematic view of a first pipe assembly of a heating device according to the invention;

figure 4 shows a schematic view of a second pipe assembly of the heating device according to the invention; and

figure 5 shows a schematic view of a filter assembly of a hot water fountain according to the present invention.

Wherein the figures include the following reference numerals:

10. a water outlet nozzle; 11. a water outlet; 12. an exhaust port; 20. a first conduit assembly; 21. a first connecting pipe; 22. a first heating member; 23. a first temperature detection member; 24. a first temperature controller; 30. a second pipe assembly; 31. a second connecting pipe; 32. a heating tank; 33. a second heating member; 34. a second temperature detection member; 35. a check valve; 36. a first water pump; 40. a pure water tank; 41. a third connecting pipe; 42. a fourth connecting pipe; 43. a commutation component; 50. a filter assembly; 51. a first filter element; 52. a second filter element; 70. an exhaust pipe; 80. a raw water tank; 90. a third water pump; 100. a wastewater tank; 110. a waste pipe; 120. a wastewater solenoid valve; 130. a second water pump; 140. a low water level detector; 150. a high water level detector.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The invention provides a heating device, please refer to fig. 1 to 5, for communicating with a water outlet nozzle 10 of a hot water dispenser, the heating device comprises: a first pipe assembly 20 including a first connecting pipe 21, a first heating member 22 and a first temperature detecting member 23, an outlet of the first connecting pipe 21 being used for communicating with the water outlet nozzle 10; the first heating member 22 is for heating the pure water in the first connecting pipe 21; the first temperature detecting member 23 is for detecting a first temperature of pure water in the first connecting pipe 21, and when the first temperature detecting member 23 detects that the first temperature reaches a first predetermined temperature, the first heating member 22 is stopped from heating.

The heating device of the invention is used for being communicated with the water outlet nozzle 10 of the hot water dispenser, so that pure water flows out of the water outlet nozzle 10 after being heated by the heating device. The first pipeline component 20 of the heating device comprises a first connecting pipe 21, a first heating element 22 and a first temperature detecting element 23, wherein the outlet of the first connecting pipe 21 is used for being communicated with the water outlet nozzle 10; the first heating member 22 is for heating the pure water in the first connecting pipe 21; the first temperature detecting member 23 is for detecting a first temperature of pure water in the first connecting pipe 21, and when the first temperature detecting member 23 detects that the first temperature reaches a first predetermined temperature, the first heating member 22 is stopped from heating. The heating device can heat the pure water in the first connecting pipe 21 to reach a preset temperature through the heating and detecting functions of the first heating element 22 and the first temperature detecting element 23, further can adjust the temperature of the pure water in the first connecting pipe 21, further can adjust the water outlet temperature of the water outlet nozzle 10, and solves the problem that the water outlet temperature of a clean hot water dispenser in the prior art cannot be adjusted to a specific temperature.

In this embodiment, the first pipeline assembly 20 further includes a first temperature controller 24, the first temperature controller 24 is in communication with the first temperature detecting element 23, and when the first temperature detecting element 23 detects that the first temperature reaches a first predetermined temperature, the first temperature controller 24 controls the first heating element 22 to stop heating. Specifically, after the first temperature detecting element 23 detects the first predetermined temperature, the first thermostat 24 is programmed to control the first heating element 22 to stop heating. With such an arrangement, the temperature of the pure water in the first connection pipe 21 can be controlled by the first temperature controller 24, so as to adjust the temperature of the outlet water of the water nozzle 10.

Specifically, the first temperature detection member 23 is a bulb.

Specifically, the first heating member 22 is a heating pipe.

In this embodiment, the heating device further includes: a second pipe assembly 30 including a second connecting pipe 31, a heating tank 32 and a second heating member 33 disposed in the heating tank 32, wherein a first end of the second connecting pipe 31 is communicated with an outlet of the heating tank 32, and a second end of the second connecting pipe 31 is used for being communicated with the water outlet nozzle 10; wherein, when the first pipe assembly 20 is communicated with the water outlet nozzle 10, the second pipe assembly 30 is disconnected with the water outlet nozzle 10; when the second tube assembly 30 is in communication with the nozzle 10, the first tube assembly 20 is disconnected from the nozzle 10. In practice, the second heating element 33 can heat the pure water in the heating tank 32 to boiling, and the second pipe assembly 30 can make the water outlet nozzle 10 flow out the boiling water.

Specifically, the first pipe assembly 20 is disposed in parallel with the second pipe assembly 30. During specific implementation, the heating mode that the first pipeline assembly 20 and the second pipeline assembly 30 are connected in parallel is utilized, switching is carried out through program control, temperature free selection from normal-temperature water to boiling water is achieved, and the requirements of users for water outlet at different temperatures can be met.

In the present embodiment, the heating apparatus further includes a pure water tank 40, a third connecting pipe 41, a fourth connecting pipe 42, and a direction changing member 43, and the direction changing member 43 has a first communicating port, a second communicating port, and a third communicating port; a first end of the fourth connecting pipe 42 is communicated with the outlet of the pure water tank 40, a second end of the fourth connecting pipe 42 is communicated with the first communicating port, the second communicating port is communicated with the inlet of the first connecting pipe 21, the third communicating port is communicated with a first end of the third connecting pipe 41, and a second end of the third connecting pipe 41 is communicated with the inlet of the heating tank 32; the reversing member 43 has a first communicating state and a second communicating state, the reversing member 43 is switched between the first communicating state and the second communicating state, when the reversing member 43 is in the first communicating state, the first communicating port and the second communicating port are communicated, and the first communicating port and the third communicating port are disconnected; when the direction changing member 43 is in the second communication state, the first communication port and the second communication port are disconnected and the first communication port and the third communication port are communicated. The direction changing member 43 realizes communication between the pure water tank and the first pipe assembly or the second pipe assembly, and the pure water tank 40 can temporarily store pure water.

Specifically, the direction changing member 43 is a direction changing electromagnetic valve. In practice, the direction-changing component 43 controls one of the first and

second conduit assemblies

20, 30 to be in communication, while the other is in the disconnected state.

Specifically, the heating apparatus further includes a second water pump 130, and the second water pump 130 is provided on the fourth connection pipe 42 to pump the pure water in the pure water tank 40 to the direction changing part 43. In this embodiment, the second pipe assembly 30 further includes: and a second temperature detecting member 34 connected to the heating tank 32, the second temperature detecting member 34 being for detecting a second temperature of the pure water in the heating tank 32, and stopping the heating of the second heating member 33 when the second temperature detecting member 34 detects that the second temperature reaches a second predetermined temperature.

Specifically, the second temperature detector 34 is a bulb.

Specifically, the second pipe assembly 30 further includes a second thermostat, the second thermostat is in communication with the second temperature detecting element 34, and when the second temperature detecting element 34 detects that the second temperature reaches a second predetermined temperature, the second thermostat controls the second heating element 33 to stop heating.

Specifically, the low water level detector 140 and the high water level detector 150 are disposed in the heating tank 32, and when the water level in the heating tank 32 rises to the high water level detector 150, the pure water is immediately stopped being pumped, and the second heating member 33 starts heating, and when the second temperature detecting member 34 senses that the water is boiling, the second heating member 33 is controlled to stop heating. When the water level of the heating tank 32 is lowered to the low water level detector 140, the second pipeline assembly stops supplying water to the water outlet nozzle, the second heating member 33 stops heating, and pure water continues to be introduced into the heating tank 32. Therefore, the pure water tank is provided with a high and low water level detector to prevent the situation that the pure water is overflowed too much or the pure water is not supplied due to insufficient reserve. Optionally, the low water level detector 140 and the high water level detector 150 are both proximity switches.

In this embodiment, the second pipe assembly 30 further includes: and a check valve 35 disposed on the second connection pipe 31, the check valve 35 being located between the heating tank 32 and the nozzle 10. This arrangement prevents the reverse flow of the pure water into the heating tank 32.

In this embodiment, the second pipe assembly 30 further includes: and a first water pump 36 disposed on the second connection pipe 31 between the heating tank 32 and the check valve 35. This arrangement allows pure water in the heating tank 32 to be pumped out to the water outlet nozzle 10.

In specific implementation, the first pipeline assembly 20 can discharge water in real time, so that the requirement that a user timely drinks hot water without waiting for heating of pure water is met; when the second temperature detecting member 34 senses that the water is boiled, the second thermostat stops the heating of the second heating member 33 and the boiling water is discharged from the heating tank 32, so that the user can receive the real boiling hot water.

The invention also provides a hot water dispenser, please refer to fig. 1 and 5, the hot water dispenser comprises a heating device and a water outlet nozzle 10, and the heating device is the heating device in the above embodiment.

In this embodiment, the hot water dispenser further includes a filter assembly 50, a first end of the filter assembly 50 is used for introducing raw water, and a second end of the filter assembly 50 is communicated with an inlet of the pure water tank 40 of the heating device; filter assembly 50 includes, among other things, a first filter element 51 and a second filter element 52.

In specific implementation, the water purifying efficiency and the water purifying effect of the water purifying and heating water dispenser are not reduced, and the two filter elements (namely the first filter element 51 and the second filter element 52) are used for filtering, so that the volume of the water purifying and heating water dispenser is greatly reduced, and the occupied space of the water purifying and heating water dispenser is reduced; moreover, the replacement of the two filter elements can be completed in one step, and the problem of complexity in replacing a plurality of filter elements is solved.

In specific implementation, the hot and clean water dispenser sucks raw water into the filter assembly 50 to be purified into pure water, the purified pure water is stored in the pure water tank 40, and the wastewater is discharged through the wastewater solenoid valve.

In the present embodiment, the first filter element 51 includes PP cotton, first activated carbon, and second activated carbon; the second filter element 52 comprises an inner reverse osmosis membrane core. Specifically, the raw water flows to the pure water tank 40 through the PP wool, the first activated carbon, the reverse osmosis membrane inner core, and the second activated carbon in sequence.

In the present embodiment, the water outlet nozzle 10 has a water outlet 11 for discharging water and an exhaust port 12 for exhausting air; the exhaust port 12 and the water outlet 11 are positioned at two opposite sides of the water outlet nozzle 10; and/or, the hot water purifying dispenser also comprises an exhaust pipe 70, and one end of the exhaust pipe 70 is communicated with the exhaust port 12. The arrangement solves the problem that the hot steam is overheated and is sprayed out from the water outlet nozzle to hurt people.

Specifically, the exhaust duct 70 extends to the back of the apparatus where no one is approaching.

In this embodiment, the hot and clean water dispenser further includes an original water tank 80 and a third water pump 90, a first end of the third water pump 90 is communicated with the original water tank 80, a second end of the third water pump 90 is communicated with the first filter element 51, and the first filter element 51 is communicated with the inlet of the pure water tank 40. This arrangement allows the raw water in the raw water tank 80 to pass through the third water pump 90 and enter the first filter element 51.

In this embodiment, the hot water dispenser further includes a waste water tank 100, a waste water pipe 110 and a waste water solenoid valve 120, wherein a first end of the waste water pipe 110 is communicated with the second filter element 52, a second end of the waste water pipe 110 is communicated with the waste water tank 100, and the waste water solenoid valve 120 is disposed on the waste water pipe 110. This arrangement allows the waste water filtered by the reverse osmosis membrane inner core to flow into the waste water tank 100.

In specific implementation, when the third water pump 90 is operated, the raw water in the raw water tank 80 is sucked into the water path and purified into pure water by the first filter element 51 and the second filter element 52, the pure water is stored in the pure water tank through the water path to wait for heating treatment of the heating device, and the wastewater is discharged to the wastewater tank through the wastewater solenoid valve.

In order to solve the problems that a certain water temperature cannot be obtained by heating and a boiling state cannot be achieved due to excessive filter elements, the water purification link of the application adopts a two-element scheme for filtration; the heating device adopts a double-heating parallel system, the first pipeline assembly and the second pipeline assembly are arranged in parallel, and the water outlet temperature of the first pipeline assembly and the water outlet temperature of the second pipeline assembly are controlled by a program, so that the free temperature selection of the filtered heating water is realized.

The application solves the following technical problems: the problem of large integral volume caused by excessive filter elements of the clean hot water dispenser is solved; the problem that the filter element is replaced complicatedly due to excessive filter elements is solved; the problem that the temperature of the outlet water is low after the first pipeline component of the hot water purifying water dispenser is heated and the water cannot reach a boiling state is solved, and the drinking requirement from warm water to boiling water can be provided for a user; the problems of low outlet water temperature and low flow caused by series temperature and series flow of the two parallel branches are prevented; the problem of the hot steam is overheated to spout from the faucet and injures people is solved.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating device for communicating with a spout (10) of a hot water dispenser, the heating device comprising:

a first pipeline component (20) comprising a first connecting pipe (21), a first heating element (22) and a first temperature detection element (23), wherein the outlet of the first connecting pipe (21) is used for being communicated with the water outlet nozzle (10); the first heating member (22) is used for heating the pure water in the first connecting pipe (21); the first temperature detecting member (23) is for detecting a first temperature of pure water in the first connecting pipe (21), and when the first temperature detecting member (23) detects that the first temperature reaches a first predetermined temperature, the first heating member (22) is stopped from heating.

2. The heating device according to claim 1, wherein the first pipe assembly (20) further comprises a first thermostat (24), the first thermostat (24) is connected to the first temperature detecting member (23) in communication, and the first thermostat (24) controls the first heating member (22) to stop heating when the first temperature detecting member (23) detects that the first temperature reaches a first predetermined temperature.

3. The heating device of claim 1, further comprising:

the second pipeline assembly (30) comprises a second connecting pipe (31), a heating tank (32) and a second heating element (33) arranged in the heating tank (32), a first end of the second connecting pipe (31) is communicated with an outlet of the heating tank (32), and a second end of the second connecting pipe (31) is used for being communicated with the water outlet nozzle (10);

wherein the second pipe assembly (30) is disconnected from the water outlet nozzle (10) when the first pipe assembly (20) is communicated with the water outlet nozzle (10); when the second pipeline component (30) is communicated with the water outlet nozzle (10), the first pipeline component (20) is disconnected with the water outlet nozzle (10).

4. The heating device according to claim 3, further comprising a pure water tank (40), a third connecting pipe (41), a fourth connecting pipe (42), and a direction changing member (43), the direction changing member (43) having a first communicating port, a second communicating port, and a third communicating port; a first end of the fourth connecting pipe (42) is communicated with an outlet of the pure water tank (40), a second end of the fourth connecting pipe (42) is communicated with the first communicating port, the second communicating port is communicated with an inlet of the first connecting pipe (21), the third communicating port is communicated with a first end of the third connecting pipe (41), and a second end of the third connecting pipe (41) is communicated with an inlet of the heating tank (32);

the direction changing member (43) has a first communicating state and a second communicating state, the direction changing member (43) is switched between the first communicating state and the second communicating state, when the direction changing member (43) is in the first communicating state, the first communicating port and the second communicating port are communicated, and the first communicating port and the third communicating port are disconnected; when the direction changing component (43) is in the second communication state, the first communication port and the second communication port are disconnected, and the first communication port and the third communication port are communicated.

5. The heating device according to claim 3, wherein the second pipe assembly (30) further comprises:

a second temperature detecting member (34) connected to the heating tank (32), the second temperature detecting member (34) being for detecting a second temperature of the pure water in the heating tank (32), and when the second temperature detecting member (34) detects that the second temperature reaches a second predetermined temperature, the second heating member (33) is stopped from heating.

6. The heating device according to claim 3, wherein the second pipe assembly (30) further comprises:

the check valve (35) is arranged on the second connecting pipe (31), and the check valve (35) is located between the heating tank (32) and the water outlet nozzle (10).

7. The heating device according to claim 6, wherein the second pipe assembly (30) further comprises:

and the first water pump (36) is arranged on the second connecting pipe (31) and is positioned between the heating tank (32) and the check valve (35).

8. A hot water dispenser comprising a heating device and a nozzle (10), characterized in that the heating device is a heating device according to any one of claims 1 to 7.

9. The hot water dispenser as claimed in claim 8, further comprising a filter assembly (50), wherein a first end of the filter assembly (50) is used for introducing raw water, and a second end of the filter assembly (50) is communicated with an inlet of the purified water tank (40) of the heating device; wherein the filter assembly (50) comprises a first filter element (51) and a second filter element (52).

10. The hot water fountain according to claim 9, wherein the first filter element (51) comprises PP cotton, first activated carbon and second activated carbon; the second filter element (52) includes an inner reverse osmosis membrane core.

11. The net hot water dispenser according to claim 8, characterized in that the water outlet nozzle (10) has a water outlet (11) for water outlet and an air outlet (12) for air exhaust;

the air outlet (12) and the water outlet (11) are positioned at two opposite sides of the water outlet nozzle (10); and/or the presence of a gas in the gas,

the hot water purifying water dispenser also comprises an exhaust pipe (70), and one end of the exhaust pipe (70) is communicated with the exhaust port (12).