Water dispenser

Abstract

The utility model relates to the technical field of water drinking equipment, and provides a water dispenser which comprises a heat storage module and a heating module. The water inlet end of the heat storage module is used for communicating with a water supply system, and a parallel branch is arranged between the water inlet end and the water outlet end of the heat storage module; the water inlet end of the heating module communicates with the water outlet end of the heat storage module, and the water outlet end of the heating module communicates with a water outlet of the water dispenser. Wherein the parallel branch can be selectively conducted or cut off. The high-temperature water outlet mode and the low-temperature water outlet mode can be switched, the water outlet modes are diversified, and high-flow high-temperature hot water can be efficiently supplied in the high-temperature water outlet mode.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water equipment, in particular to a drinking water machine. Background Art

[0002] Instant hot water dispenser is a kind of drinking water equipment that can make hot water dispensed immediately without users having to wait. Different from the traditional pre-heated hot tank water dispenser, instant hot water dispenser can provide fresh hot water instantly, avoiding the hot water from being boiled repeatedly and eliminating the energy waste caused by the hot tank insulation stage.

[0003] In actual applications, although instant hot water dispensers can use electricity to boil room temperature water to a specified temperature, they generally have the problem of a single water output method, and the water output flow of the instant hot water dispenser is usually determined by the electric power of the heating module and the temperature difference between its inlet and outlet. Due to the power limitation of the household power supply system, the water output flow of the instant hot water dispenser in the high temperature water position is generally small, especially in winter when the water temperature is low, which makes it take a long time for users to get water. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides a water dispenser that can switch between a high-temperature water outlet mode and a low-temperature water outlet mode, and can efficiently supply a large flow of high-temperature hot water in the high-temperature water outlet mode.

[0005] The utility model also provides a control method for the water dispenser.

[0006] The water dispenser according to the first embodiment of the utility model comprises:

[0007] A heat storage module, wherein the water inlet of the heat storage module is used to communicate with the water supply system, and a parallel branch is provided between the water inlet and the water outlet of the heat storage module;

[0008] A heating module, wherein a water inlet end of the heating module is connected to a water outlet end of the heat storage module, and a water outlet end of the heating module is connected to a water outlet;

[0009] The parallel branches can be selectively turned on or off.

[0010] According to an embodiment of the utility model, the water dispenser further comprises: an operation panel, the operation panel being electrically connected to the control valve on the parallel branch;

[0011] The operation panel is used to control the opening and closing state of the control valve to realize the control of the conduction or cutoff of the parallel branch.

[0012] According to an embodiment of the utility model, the water dispenser further comprises: a temperature sensing element, the temperature sensing element being electrically connected to the operation panel;

[0013] The temperature sensing element is used to collect the water supply temperature of the water supply system, and the operation panel is used to receive the target water intake temperature input by the user, and control the opening and closing state of the control valve according to the difference between the target water intake temperature and the water supply temperature.

[0014] According to an embodiment of the utility model, the water outlet of the heating module can be selectively connected to the water outlet of the heat storage module or the water dispenser;

[0015] Wherein, when the water outlet of the heating module is connected to the heat storage module, the heat storage module uses the hot water output by the heating module to store heat.

[0016] According to one embodiment of the utility model, the water dispenser further comprises a valve control, wherein the valve control has a first state and a second state;

[0017] When the valve control unit is in the first state, the water outlet of the heating module is connected to the water outlet through the valve control unit;

[0018] When the valve control is in the second state, the water outlet of the heating module is connected to the thermal storage module through the valve control to form a circulating water circuit based on the thermal storage module and the heating module.

[0019] According to an embodiment of the utility model, the water dispenser further includes a first trigger, and the first trigger is electrically connected to the valve control; the first trigger is used to receive a water extraction instruction signal, and the valve control is used to operate in the first state according to the signal fed back by the first trigger;

[0020] And / or, the water dispenser also includes a second trigger, which is electrically connected to the valve control unit; the second trigger is used to receive a power-on command signal or a heat storage command signal, and the valve control unit is used to operate in the second state according to the signal fed back by the second trigger.

[0021] According to an embodiment of the utility model, the water dispenser further comprises a pumping member; the pumping member is used to drive the water flow to flow to the heating module through the heat storage module and the parallel branch.

[0022] According to one embodiment of the utility model, the heat storage module includes a shell, a heat exchanger and a heat storage material;

[0023] The shell has a containing cavity, the heat exchanger is arranged in the containing cavity, and the heat storage material is filled in the containing cavity between the heat exchanger and the shell;

[0024] The water outlet end of the heating module can be selectively connected to the first end of the heat exchanger or the water outlet of the water dispenser; the first end of the heat exchanger is used to connect to the water supply system, and the second end of the heat exchanger is connected to the water inlet end of the heating module.

[0025] According to one embodiment of the utility model, the heat exchanger includes a coil;

[0026] Alternatively, the heat exchanger includes a coil and a fin assembly, at least a portion of the coil is inserted into the fin assembly, or the coil and the fin assembly are stacked.

[0027] According to an embodiment of the present invention, the thermal storage module further includes a heater, and the heater is used to heat the thermal storage material.

[0028] According to one embodiment of the utility model, the heating module comprises: a heating tube and a jet assembly;

[0029] One end of the heating tube is connected to the water outlet of the heat storage module, and the other end is connected to the water outlet;

[0030] The jet component is arranged in the heating tube, and the jet component has a jet cavity and a water inlet and a jet hole connected with the jet cavity, and the jet direction of the jet hole is toward the inner wall of the heating tube.

[0031] According to one embodiment of the utility model, the jet assembly includes a central column and a plurality of the jet chambers;

[0032] A plurality of the jet cavities are sequentially arranged along the axial direction of the central column, and a water gap is formed between the side wall of the jet cavity and the inner wall of the heating tube;

[0033] Wherein, the water inlet is arranged on a side of the jet cavity facing the heat storage module, and the jet hole is arranged on a side wall of the jet cavity.

[0034] According to an embodiment of the utility model, the distance between any two adjacent jet cavities along the axial direction is greater than or equal to 2 mm and less than or equal to 12 mm;

[0035] According to an embodiment of the utility model, the coverage rate of the jet cavity and the heating area of ​​the heating tube along the axial direction is not less than K, and K is greater than or equal to 85% and less than or equal to 95%.

[0036] According to an embodiment of the utility model, the peripheral wall of the jet cavity is provided with a water retaining wing, and the water retaining wing is extended along the circumference of the jet cavity;

[0037] Wherein, the peripheral wall of the water retaining wing is in contact with the inner wall of the heating tube, or a water-passing gap is formed between the peripheral wall of the water retaining wing and the inner wall of the heating tube.

[0038] According to an embodiment of the present invention, the heating tube comprises a heating tube body and a heating element, and the heating element is arranged on the heating tube body; at least part of the heating element and the jet cavity are arranged opposite to each other.

[0039] According to an embodiment of the utility model, the heating element includes one of the following: a thick film resistor heater, a nano-electronic film heater, a stainless steel heater, and a gas heating device.

[0040] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects: the water dispenser is configured with a heat storage module and a heating module, and a parallel branch is configured for the heat storage module. The user can control the opening and closing state of the parallel branch according to actual needs to switch between the high-temperature water outlet mode and the low-temperature water outlet mode. In the high-temperature water outlet mode, the parallel branch is cut off, so that the water supplied by the water supply system is preheated by the heat storage module and heated by the heating module in turn, and then output from the water outlet, ensuring that the water outlet efficiently supplies a large flow of high-temperature hot water, and in the low-temperature water outlet mode, the parallel branch is turned on, so that the water supplied by the water supply system is directly heated by the heating module and then output from the water outlet, ensuring that the water outlet outputs hot water with a relatively low temperature.

[0041] As can be seen from the above, the water dispenser shown in the utility model can realize the switching between the high-temperature water outlet mode and the low-temperature water outlet mode, which not only diversifies the water outlet mode, but also can efficiently supply a large flow of high-temperature hot water in the high-temperature water outlet mode.

[0042] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 It is a structural schematic diagram of a water dispenser provided by an embodiment of the utility model;

[0045] Figure 2 This is one of the structural schematic diagrams of the heat storage module provided in the embodiment of the utility model;

[0046] Figure 3 This is the second structural schematic diagram of the heat storage module provided in the embodiment of the utility model;

[0047] Figure 4 This is the third structural schematic diagram of the heat storage module provided in the embodiment of the utility model;

[0048] Figure 5 It is a schematic diagram of the exploded structure of the heating module provided in the embodiment of the utility model;

[0049] Figure 6 It is a schematic cross-sectional structure diagram of a heating module provided in an embodiment of the utility model;

[0050] Figure 7 It is a schematic diagram of the structure of the jet assembly provided by the embodiment of the utility model;

[0051] Reference numerals:

[0052] 1: heat storage module; 11: shell; 12: heat exchanger; 13: heater; 121: coil; 122: fin assembly;

[0053] 2: heating module; 21: heating tube; 22: jet assembly; 23: water inlet joint; 24: water outlet joint; 221: center column; 222: jet cavity; 2220: jet hole; 25: water inlet temperature sensor; 26: first sealing member; 27: first positioning member; 271: positioning plate; 272: flow hole; 28: second positioning member; 29: second sealing member; 30: water outlet temperature sensor;

[0054] 3: Valve control unit; 4: Pumping part; 5: Water supply system; 6: Water outlet; 7: First temperature sensor; 8: Second temperature sensor; 9: Control valve; 10: Temperature sensing element. DETAILED DESCRIPTION

[0055] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0056] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0057] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0058] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0060] Combine the following Figure 1-Figure 7, the water dispenser provided by the embodiment of the utility model is described in detail through specific embodiments and application scenarios.

[0061] like Figure 1 As shown, an embodiment of the utility model provides a water dispenser, comprising: a heat storage module 1 and a heating module 2; the water inlet end of the heat storage module 1 is used to communicate with a water supply system 5, and a parallel branch is provided between the water inlet end and the water outlet end of the heat storage module 1; the water inlet end of the heating module 2 is connected to the water outlet end of the heat storage module 1, and the water outlet end of the heating module 2 is connected to the water outlet 6; wherein the parallel branch can be selectively turned on or off.

[0062] It can be understood that the water dispenser has a high-temperature water outlet mode and a low-temperature water outlet mode; in the high-temperature water outlet mode, the parallel branch is cut off, and the water supplied by the water supply system 5 passes through the heat storage module 1 and the heating module 2 in sequence, and then flows out from the water outlet 6; in this way, the water supplied by the water supply system 5 is preheated by the heat storage module 1 and then heated by the heating module 2, which can ensure that the water outlet 6 outputs high-temperature hot water at a large flow rate.

[0063] In the low-temperature water outlet mode, the parallel branch is turned on, and the water supplied by the water supply system 5 passes through the parallel branch and the heating module 2 in sequence, and then flows out from the water outlet 6. Although in the low-temperature water outlet mode, the thermal storage module 1 is connected between the water supply system 5 and the heating module 2, since the thermal storage module 1 has a greater flow resistance than the parallel branch, most of the water supplied by the water supply system 5 flows directly to the heating module 2 through the parallel branch, which makes the water not preheated, but can only use the heating of the heating module 2, so compared with the high-temperature water outlet mode, the water outlet 6 can only output hot water with a relatively low temperature in the low-temperature water outlet mode.

[0064] In some examples, the water supply system 5 can be a water tank or a water purification system, which can stably supply water to the water inlet of the thermal storage module 1.

[0065] The heat storage module 1 generally includes a heat exchanger and a heat storage material. A heat exchange channel is formed on the inner side of the heat exchanger. The heat storage material is in contact with the outer side of the heat exchanger. The heat storage material may be a solid-liquid phase change material, cast aluminum, water, etc. The water supply system 5 is connected to the heating module 2 through the heat exchange channel. The heat storage material may be charged by electric heating. After the charging is completed, the temperature of the phase change material rises, and the temperature in the heat exchange channel can be maintained within a preset range for a certain period of time, thereby preheating the cold water passing through the heat exchange channel.

[0066] In practical applications, the heat storage material can be heated before the user takes water, or during the idle time when the user takes water (no water taking operation), so as to realize the heat storage and energy charging of the heat storage module 1 .

[0067] The heating module 2 may be an electric heater or a plate heat exchanger. The heating module 2 is provided with a heating channel to heat water flowing through the heating channel. The heating module 2 may adaptively adjust the heating power according to the water outlet temperature of the water outlet 6 .

[0068] Since the water inlet of the heat storage module 1 is connected to the water supply system 5, the first end of the parallel branch can be considered to be able to communicate with the water inlet of the heat storage module 1 or the water supply system 5, and the second end of the parallel branch is connected to the water outlet of the heat storage module 1.

[0069] As can be seen from the above, the water dispenser is configured with a heat storage module 1 and a heating module 2, and a parallel branch is configured for the heat storage module 1. The user can control the opening and closing state of the parallel branch according to actual needs to switch between the high-temperature water outlet mode and the low-temperature water outlet mode. In the high-temperature water outlet mode, the parallel branch is cut off, so that the water supplied by the water supply system 5 is preheated by the heat storage module 1 and heated by the heating module 2 in turn, and then output from the water outlet 6, ensuring that the water outlet 6 efficiently supplies a large flow of high-temperature hot water. In the low-temperature water outlet mode, the parallel branch is turned on, so that the water supplied by the water supply system 5 is directly heated by the heating module 2 and then output from the water outlet 6, ensuring that the water outlet 6 outputs relatively low temperature hot water.

[0070] It should be pointed out here that since the water dispenser of this embodiment is equipped with a heat storage module 1 and a heating module 2, it can efficiently provide a large flow of high-temperature hot water. This water dispenser can also be called an instant water dispenser.

[0071] In some embodiments, the water dispenser further includes: an operation panel, which is electrically connected to the control valve 9 on the parallel branch; the operation panel is used to control the opening and closing state of the control valve 9 to achieve the control of the conduction or cutoff of the parallel branch.

[0072] It is understandable that the operation panel may be a touch screen, which can receive operation instructions from the user and respond to the operation instructions to control the opening and closing state of the control valve 9 .

[0073] The control valve 9 may be a two-position two-way solenoid valve or a two-position three-way solenoid valve.

[0074] When the control valve 9 is a two-position two-way solenoid valve, the water inlet end of the heat storage module 1 is connected to one end of the two-position two-way solenoid valve, and the water outlet end of the heat storage module 1 is connected to the other end of the two-position two-way solenoid valve; at this time, the operation panel can directly control the opening and closing state of the two-position two-way solenoid valve to realize the conduction or cutoff of the control parallel branch.

[0075] When the control valve 9 is a two-position three-way solenoid valve, the first end of the two-position three-way solenoid valve is connected to the water supply system 5, the second end of the two-position three-way solenoid valve is connected to the water inlet end of the heat storage module 1, and the third end of the two-position three-way solenoid valve is connected to the water outlet end of the heat storage module 1 through the pipeline corresponding to the parallel branch;

[0076] Among them, the operation panel is used to control the two-position three-way solenoid valve to switch between the first state and the second state; when the two-position three-way solenoid valve is in the first state, the water supply system 5 and the heat storage module 1 are connected, and the parallel branch is cut off; when the two-position three-way solenoid valve is in the second state, the water supply system 5 and the water inlet end of the heat storage module 1 are cut off, and the parallel branch is connected, and the water supply system 5 is connected to the water outlet end of the heat storage module 1 through the parallel branch.

[0077] In some embodiments, Figure 1 As shown, the water dispenser also includes: a temperature sensing element 10, the temperature sensing element 10 is electrically connected to the operation panel; the temperature sensing element 10 is used to collect the water supply temperature of the water supply system 5, and the operation panel is used to receive the target water intake temperature input by the user, and control the opening and closing state of the control valve 9 according to the difference between the target water intake temperature and the water supply temperature.

[0078] It is understandable that the temperature sensing element 10 may be a temperature sensor such as a thermistor or a resistance temperature detector (RTD), and the temperature sensing element 10 may be provided at the water outlet of the water supply system 5 to collect the water supply temperature of the water supply system 5. The water supply temperature of the water supply system 5 is usually 5-10°C.

[0079] At the same time, when the user performs the water extraction operation, he manually inputs the target water extraction temperature into the operation panel, for example, the target water extraction temperature is 80° C. After the operation panel receives the target water extraction temperature, the opening and closing state of the control valve 9 is controlled according to the threshold range of the difference between the target water extraction temperature and the water supply temperature, so as to realize the high-temperature water outlet mode or the low-temperature water outlet mode.

[0080] If the difference between the target water intake temperature and the water supply temperature is greater than the preset value, it can be determined that the water outlet temperature of the water outlet 6 needs to be guaranteed. At this time, the control valve 9 is controlled to be cut off to ensure that the water dispenser supplies a large flow of hot water according to the high-temperature water outlet mode.

[0081] If the difference between the target water intake temperature and the water supply temperature is less than the preset value, it can be determined that even if the heat storage module 1 is not used to preheat the water, the water flow rate and water temperature of the water outlet 6 can be ensured only by the heating module 2. At this time, the control valve 9 is controlled to be turned on to ensure that the water dispenser supplies a large flow of hot water in the low-temperature water outlet mode. The preset value can be set to 45-60°C.

[0082] In some embodiments, Figure 1As shown, the water outlet of the heating module 2 can be selectively connected to the water outlet 6 of the heat storage module 1 or the water dispenser; when the water outlet of the heating module 2 is connected to the heat storage module 1, the heat storage module 1 uses the hot water output by the heating module 2 to store heat.

[0083] It can be understood that since the heat storage module 1 includes a heat exchange element and a heat storage material, a heat exchange channel is formed on the inner side of the heat exchange element, and the heat storage material is in contact with the outer side of the heat exchange element, the water outlet end of the heating module 2 can be connected with the water inlet end of the heat exchange channel or the middle of the heat exchange channel to supply the hot water output by the heating module 2 to the heat exchange channel of the heat storage module 1, and then based on the heat exchange of the wall of the heat exchange channel, the thermal energy of the hot water is stored in the phase change material.

[0084] Among them, before the user takes water, or during the idle time when the user takes water (no water taking operation), the water outlet end of the heating module 2 can be connected to the heat exchange channel of the heat storage module 1 to use hot water to store heat and charge the heat storage module 1.

[0085] As can be seen from the above, by setting the water outlet end of the heating module 2 to be selectively connected with the heat storage module 1 and the water outlet 6, the water dispenser can be operated in the heat storage mode or the water outlet mode; in the heat storage mode, the water dispenser can use the hot water output by the heating module 2 to store heat in the heat storage module 1, and there is no need to use other equipment to provide the heat energy required for heat storage in the heat storage module 1, which is not only low in cost but also has good energy-saving and environmental protection effects; in the water outlet mode, since the heat storage module 1 has completed heat storage, the user can selectively control the water dispenser to discharge water in the high-temperature water outlet mode and the low-temperature water outlet mode according to the water intake demand.

[0086] In some embodiments, Figure 1 As shown, the water dispenser also includes a valve control 3, which has a first state and a second state; when the valve control 3 is in the first state, the water outlet end of the heating module 2 is connected to the water outlet 6 through the valve control 3; when the valve control 3 is in the second state, the water outlet end of the heating module 2 is connected to the heat storage module 1 through the valve control 3, so as to form a circulating water circuit based on the heat storage module 1 and the heating module 2.

[0087] It is understandable that the valve control unit 3 can be configured as a two-position three-way electromagnetic reversing valve, and the water dispenser is configured with an operation panel and a control module, the operation panel and the control module are electrically connected, and the control module and the valve control unit 3 are electrically connected.

[0088] The operation panel is used to receive a first operation instruction from the user, for example, the first operation instruction may be a water extraction instruction. The control module responds to the first operation instruction and controls the valve control 3 to be in the first state. At this time, the water dispenser operates in the water outlet mode, and the water supplied by the water supply system 5 passes through the heat storage module 1, the heating module 2 and the valve control 3 in sequence, and then is output from the water outlet 6. Since the water has been preheated to a certain temperature before entering the heating module 2, the difference between the inlet temperature of the heating module 2 and the target temperature is reduced, so that the heating module 2 can heat a larger flow of water to a high temperature.

[0089] At the same time, the operation panel is used to receive the user's second operation instruction, which may be a power-on instruction or a heat storage instruction. The control module responds to the second operation instruction, and the control valve control 3 is in the second state. At this time, the water dispenser operates in the heat storage mode, and the heat storage module 1, the heating module 2 and the valve control 3 are connected in sequence to form a circulating water circuit.

[0090] During the process of storing heat in the heat storage module 1, the heating module 2 starts to run. When the hot water output by the heating module 2 flows through the heat storage module 1, part of the heat of the hot water is transferred to the heat storage material in the heat storage module 1. After the water temperature drops, it flows into the heating module 2 for heating, and this cycle is repeated until the water is heated to the target heating temperature.

[0091] The target heating temperature is greater than the phase change temperature of the heat storage material in the heat storage module 1 to ensure the effect of using hot water to store heat and charge the heat storage module 1 .

[0092] In some embodiments, the water dispenser further includes a pumping member 4 ; the pumping member 4 is used to drive the water flow to flow to the heating module 2 through the heat storage module 1 and the parallel branch.

[0093] It can be understood that the pumping component 4 is a hot water pump, and the pumping component 4 has a flow control function to control the flow rate of the pumped water; when the water dispenser is in the high-temperature water outlet mode, the pumping component 4 controls the water supplied by the water supply system 5 to pass through the heat storage module 1 and the heating module 2 in sequence, and then flow out from the water outlet 6; wherein, the pumping component 4 controls the flow rate of the pumped water, the heat storage module 1 ensures the preheating temperature of the water, and the heating module 2 further controls the heating power of the water, and these three cooperate with each other to ensure the flow rate and temperature of the water output from the water outlet 6.

[0094] When the water dispenser is in the low-temperature water outlet mode, the pumping component 4 controls the water supplied by the water supply system 5 to flow to the heating module 2 through the parallel branch and then flows out from the water outlet 6; wherein, the pumping component 4 controls the flow rate of the pumped water, and the heating module 2 controls the heating power of the water, and the pumping component 4 and the heating module 2 cooperate with each other to ensure the flow rate and temperature of the water output from the water outlet 6.

[0095] At the same time, the pumping component 4 is arranged in the circulating water circuit and is located in the pipeline between the water inlet end of the heat storage module 1 and the water outlet end of the heating module 2. For example, the pumping component 4 is arranged at the water inlet end or the water outlet end of the heat storage module 1. This design ensures that the pumping component 4 can take into account the pumping requirements of the water body of the water dispenser in the high-temperature water outlet mode, the low-temperature water outlet mode and the heat storage mode, and ensures that the water dispenser can work normally in various modes.

[0096] In some embodiments, the water dispenser further includes a first trigger, which is connected to the valve control 3; the first trigger is used to receive a water extraction instruction signal, and the valve control 3 is used to switch to the first state according to the signal fed back by the first trigger.

[0097] It is understandable that the first trigger component is electrically connected to the control module, and the control module is electrically connected to the valve control unit 3. The control module controls the working state of the valve control unit 3 according to the trigger instruction fed back by the first trigger component, so that the water dispenser enters the water outlet mode.

[0098] Optionally, the first trigger member may be a water intake button, which may be disposed on an operation panel and used for receiving a pressing instruction from a user.

[0099] Optionally, the first trigger member may be a trigger switch, which is disposed on a water intake valve located at the water outlet 6 and is triggered when a user opens the water intake valve.

[0100] In some embodiments, the water dispenser also includes a second trigger, which is connected to the valve control 3; the second trigger is used to receive a power-on command signal or a heat storage command signal, and the valve control 3 is used to switch to the second state according to the signal feedback from the second trigger.

[0101] It is understandable that the second trigger component is electrically connected to the control module, and the control module is electrically connected to the valve control unit 3. The control module controls the working state of the valve control unit 3 according to the trigger instruction fed back by the second trigger component, so that the water dispenser enters the heat storage mode.

[0102] Optionally, the second trigger may be a power switch, which may be disposed on an operating panel. When the user presses the power switch to power on the water dispenser, the control module may respond to a power-on command signal fed back from the power switch to control the water dispenser to enter a heat storage mode.

[0103] Optionally, the second trigger may be a heat storage button, which may be disposed on the operating panel. When the user presses the heat storage button, the control module may respond to a heat storage command signal fed back from the heat storage button to control the water dispenser to enter the heat storage mode.

[0104] In some embodiments, Figures 2 to 4As shown, the heat storage module 1 includes a shell 11, a heat exchanger 12 and a heat storage material; the shell 11 has a receiving cavity, the heat exchanger 12 is arranged in the receiving cavity, and the heat storage material is filled in the receiving cavity between the heat exchanger 12 and the shell 11;

[0105] The first end of the heat exchanger 12 is used to communicate with the water supply system 5, and the second end of the heat exchanger 12 is connected to the water inlet end of the heating module 2; the water outlet end of the heating module 2 can be selectively connected to the first end of the heat exchanger 12 or the water outlet 6 of the water dispenser.

[0106] It is understandable that the shell 11 can be configured as a cube, and specifically adopt a heat-resistant plastic shell or a stainless steel shell; the heat exchanger 12 can adopt the form of stainless steel bent pipes, tube-fin heat exchangers, plate heat exchangers, etc.; the heat storage material can adopt single-phase heat storage materials such as water and cast aluminum to provide heat by utilizing the temperature difference between the heat storage material and the incoming water in the heat exchanger 12, or it can be a phase change material such as hydrated salt heat storage material, paraffin, etc., to provide heat by utilizing the heat energy generated during phase change.

[0107] The water outlet of the heating module 2 can be selectively connected to the first end of the heat exchanger 12 or the water outlet 6 of the water dispenser through the valve control unit 3.

[0108] Some examples include Figure 2 As shown, the heat exchanger 12 uses a coil 121 , for example, the coil 121 is a stainless steel tube, and the coil 121 is arranged in a single layer in the shell 11 .

[0109] Some examples include Figure 3 As shown, the heat exchanger 12 includes a coil 121 and a fin assembly 122, and at least part of the coil 121 is disposed in the fin assembly 122. Optionally, the fin assembly 122 includes a plurality of fins, the plurality of fins are stacked, and the coil 121 is disposed between the plurality of stacked fins.

[0110] Some examples include Figure 4 As shown, the heat exchanger 12 includes a coil 121 and a fin assembly 122, which are stacked. Optionally, the fin assembly 122 has two layers, the coil 121 is sandwiched between the two layers of fin assembly 122, and each layer of fin assembly 122 includes a plurality of stacked fins.

[0111] In some embodiments, Figure 1 As shown, the thermal storage module 1 further includes a heater 13, and the heater 13 is used to heat the thermal storage material.

[0112] It is understandable that the heater 13 can be arranged inside the shell 11 of the heat storage module 1 or on the outer surface of the shell 11; the heater 13 can be an electric heating element such as a heating wire, a heating tube 21 or a constant temperature PTC heater 13.

[0113] Thus, in addition to utilizing the hot water output by the heating module 2 to store heat in the heat storage material of the heat storage module 1 , this embodiment can also directly utilize the heater 13 to heat the heat storage material to achieve heat storage of the heat storage material.

[0114] Among them, in this embodiment, when the water dispenser works in the water outlet mode, the heater 13 can be used to heat the heat storage material to ensure that the water dispenser can work in the water outlet mode for a long time.

[0115] In some embodiments, Figure 1 As shown, the water dispenser also includes a first temperature sensor 7, which is used to detect the temperature of the heat storage material; and / or, the water dispenser also includes a second temperature sensor 8, which is used to detect the water inlet temperature and water outlet temperature of the heating module 2.

[0116] It is understandable that both the first temperature sensor 7 and the second temperature sensor 8 may be thermistors or resistance temperature detectors (RTDs).

[0117] In actual application, the first temperature sensor 7 is buried in the heat storage material, and the first temperature sensor 7 is marked as NTC4 in the figure; the first temperature sensor 7 is electrically connected to the control module. When the temperature of the heat storage material collected by the first temperature sensor 7 is lower than the phase change temperature of the heat storage material (for example, 70°C), the control module controls the valve control 3 to switch to the second state, so that the water dispenser enters the heat storage mode.

[0118] At the same time, two second temperature sensors 8 can be configured, and the two second temperature sensors 8 are respectively installed at the water inlet and water outlet of the heating module 2, and are respectively marked as NTC1 and NTC3 in the figure. The second temperature sensors 8 (NTC1 and NTC3) are respectively connected to the control module, and the control module adjusts the power of the heating module 2 according to the target temperature Tt selected by the user.

[0119] Specifically, the water inlet temperature of the heating module 2 is set to T1, the water outlet temperature of the heating module 2 is set to T2, the water outlet flow rate of the water outlet 6 is m, the specific heat capacity of water is C, and the heating power of the heating module 2 is P=mC(T2-T1); by adjusting the heating temperature of the heating tube 21 built into the heating module 2, it is possible to ensure that the water outlet temperature T2=Tt of the heating module 2 when the user takes water.

[0120] The heating power of the heating module 2 is set to remain unchanged, and the water inlet temperature T1 of the heating module 2 is increased by using the preset of the heat storage module 1, which means that the water outlet flow rate m will be increased, thereby improving the user experience.

[0121] In this embodiment, a temperature sensor NTC2 may be additionally configured to monitor the heating temperature of the heating tube 21 by the temperature sensor NTC2.

[0122] In some embodiments, Figure 5 , Figure 6 and Figure 7 As shown, the heating module 2 includes: a heating tube 21 and a jet component 22; the water inlet end of the heating tube 21 is connected to the water outlet end of the heat storage module, and the water outlet end of the heating tube 21 can be selectively connected to the heat storage module and the water outlet through a valve control; the jet component 22 is arranged in the heating tube 21, and the jet component 22 has a jet cavity 222 and a water inlet and a jet hole 2220 connected to the jet cavity 222, and the jet direction of the jet hole 2220 is toward the inner wall of the heating tube 21.

[0123] It is understandable that the heating module 2 also includes: a water inlet and a water outlet; the water inlet is arranged at one end of the heating tube 21 and is connected to the water outlet end of the heat storage module; the water outlet is arranged at the other end of the heating tube 21 and is connected to the water outlet; wherein the jet assembly 22 is installed between the water inlet and the water outlet.

[0124] At the same time, the heating tube 21, as a functional element capable of heating the fluid, can heat the fluid by electric heating such as thick film heating, quartz tube heating, nano film heating, cast aluminum heating, stainless steel wire heating, etc., or can also heat the fluid by heat exchange such as steam heating and combustion heating. The inner wall of the heating tube 21 serves as a heating wall surface, and the convection heat exchange between the jet fluid triggered by the jet component 22 and the heating wall surface ensures a high heat exchange efficiency and improves the heating effect on the water body.

[0125] In some embodiments, Figure 6 and Figure 7 As shown, the jet assembly 22 includes a central column 221 and a plurality of jet chambers 222; the plurality of jet chambers 222 are arranged in sequence along the axial direction of the central column 221, and a water gap d is formed between the side wall of the jet chamber 222 and the inner wall of the heating tube 21; wherein, the water inlet is arranged on the side of the jet chamber 222 facing the heat storage module, and the jet hole 2220 is arranged on the side wall of the jet chamber 222.

[0126] It is understandable that in actual work, most of the fluid is ejected from the jet hole 2220 on the jet chamber 222, generating a jet fluid that flushes at a velocity perpendicular to the heating wall surface, and has a higher heat exchange efficiency; since there is a water gap d between the jet chamber 222 and the inner wall of the heating tube 21, a small amount of fluid flows out directly from the water gap d, forming a velocity component parallel to the heating wall surface. This part of the fluid merges with the jet fluid, and while guiding the jet fluid to flow toward the water outlet end of the heating module 2, it also enhances the heat exchange efficiency with the heating wall surface.

[0127] After passing through the previous jet cavity 222 and undergoing jet heat exchange with the heated wall, the fluid enters the next jet cavity 222 along the mainstream direction and undergoes jet heat exchange with the heated wall again. This process is repeated. After multiple jet heat exchanges, the temperature of the fluid continues to rise until it reaches the set target temperature and then flows out from the outlet.

[0128] In some embodiments, the jet cavity 222 is a columnar cavity, and the peripheral wall of the jet cavity 222 is provided with a water retaining wing, which is extended along the circumference of the jet cavity 222. The edge of the water retaining wing is in contact with the inner wall of the heating tube 21, or a water-passing gap is formed between the edge of the water retaining wing and the inner wall of the heating tube 21, and the width of the water-passing gap is smaller than the width of the water-passing gap d.

[0129] The jet cavity 222 and the heating tube 21 are configured to have matching shapes. For example, the jet cavity 222 is a cylindrical cavity, the heating tube 21 is a cylindrical cavity, and the jet cavity 222 and the heating tube 21 are coaxially configured.

[0130] Optionally, the water retaining wing can be arranged at one end of the jet cavity 222 facing the water inlet end of the heating tube 21. This design reduces the flow rate of the fluid passing through the water gap d and increases the flow rate of the jet fluid ejected from the jet hole 2220, which is conducive to enhancing the jet heat exchange effect. Of course, the water retaining wing can also be arranged in the middle of the jet cavity 222 along the axial direction.

[0131] In some embodiments, Figure 6 As shown, the spacing L between any two adjacent jet cavities 222 in the length direction of the heating tube 21 is 2 to 12 mm; that is, the spacing L is greater than or equal to 2 mm and less than or equal to 12 mm; optionally, the spacing L is 4 to 10 mm, that is, the spacing L is greater than or equal to 4 mm and less than or equal to 10 mm.

[0132] In some embodiments, the heating module 2 further includes a water inlet connector 23 and a water outlet connector 24 , wherein the water inlet connector 23 is disposed at the water inlet end of the heating tube 21 , and the water outlet connector 24 is disposed at the water outlet end of the heating tube 21 .

[0133] In some examples, the water inlet connector 23 can guide external fluid into the heating tube 21 , and the water inlet connector 23 may include: a water inlet body, in which a water supply port and a water inlet cavity are provided, and the water supply port is connected to the interior of the heating tube 21 via the water inlet cavity.

[0134] Optionally, the water inlet body can be made of metal material, such as stainless steel, and a water supply port is provided at the first end of the water inlet body, which is connected to the water inlet cavity, and the second end of the water inlet body is connected to the heating pipe 21.

[0135] In some examples, the water outlet connector 24 can guide the fluid in the heating tube 21 to be supplied to the outside, and the water outlet connector 24 may include: a water outlet body, in which a water inlet and a water outlet cavity are provided, and the water inlet is connected to the heating tube 21 via the water outlet cavity.

[0136] Similarly, the water outlet body can be made of metal material, such as stainless steel. The first end of the water outlet body is provided with a water inlet, which is connected to the water outlet cavity. The second end of the water outlet body can be connected to the heating pipe 21, and the water outlet cavity is connected to the heating pipe 21.

[0137] In some embodiments, Figure 6 and Figure 7 As shown, the heating module 2 also includes a first seal 26 and a second seal 29 , the water inlet joint 23 is sealedly connected to the water inlet end of the heating tube 21 through the first seal 26 , and the water outlet joint 24 is connected to the water outlet end of the heating tube 21 through the second seal 29 .

[0138] It should be noted that the first sealing member 26 is sleeved on the end of the water inlet body facing the heating tube 21 , and the first sealing member 26 can form a seal between the water inlet body and the heating tube 21 .

[0139] Exemplarily, the first seal 26 can be made of a high-temperature resistant rubber material, the second end of the water inlet body can be partially inserted into the heating pipe 21, the first seal 26 is sleeved on the second end of the water inlet body, and the first seal 26 is provided with a radially outwardly extending annular abutment flange on one side close to the water supply port.

[0140] During installation, the first seal 26 can be partially inserted into the heating tube 21 following the second end of the water inlet body. The first seal 26 can simultaneously abut against the second end of the water inlet body and the inner wall of the heating tube 21. At the same time, the annular abutting flange of the first seal 26 can also simultaneously abut against the ends of the water inlet body and the heating tube 21. Afterwards, after the water inlet body is fixed to the end of the heating tube 21, the first seal 26 can be used to achieve sealing between the water inlet body and the heating tube 21.

[0141] Moreover, in order to improve the sealing effect, a plurality of annular sealing flanges may be provided on the outer periphery of the first sealing member 26 . The plurality of annular sealing flanges are arranged at intervals along the axial direction of the heating tube 21 , and the plurality of annular sealing flanges can all abut against the inner wall of the heating tube 21 .

[0142] Therefore, by providing a plurality of annular sealing flanges on the outer periphery of the first sealing member 26 , the sealing effect between the heating tube 21 and the first sealing member 26 can be further improved.

[0143] In addition, the second sealing member 29 is sleeved on the end of the water outlet body facing the heating pipe 21 , and the second sealing member 29 can form a seal between the water outlet body and the heating pipe 21 .

[0144] Similarly, the second seal 29 can be made of a high-temperature resistant rubber material, and the second end of the water outlet body can be partially inserted into the heating pipe 21. The second seal 29 is sleeved on the second end of the water outlet body, and a radially outwardly extending annular abutment flange is provided on one side of the second seal 29 close to the water outlet.

[0145] During installation, the second seal 29 can be partially inserted into the heating tube 21 following the second end of the water outlet body. The second seal 29 can simultaneously abut the second end of the water outlet body and the inner wall of the heating tube 21. At the same time, the annular abutting flange of the second seal 29 can also simultaneously abut the ends of the water outlet body and the heating tube 21. Afterwards, after the water outlet body is fixed to the end of the heating tube 21, the second seal 29 can be used to achieve sealing between the water outlet body and the heating tube 21.

[0146] Moreover, in order to improve the sealing effect, a plurality of annular sealing flanges may be provided on the outer periphery of the second sealing member 29 . The plurality of annular sealing flanges are arranged at intervals along the axial direction of the heating tube 21 , and the plurality of annular sealing flanges can all abut against the inner wall of the heating tube 21 .

[0147] Therefore, by providing a plurality of annular sealing flanges on the outer periphery of the second sealing member 29 , the sealing effect between the heating tube 21 and the second sealing member 29 can be further improved.

[0148] In some embodiments, Figure 6 As shown, the heating module 2 also includes an inlet water temperature sensor 25 and an outlet water temperature sensor 30. The inlet water temperature sensor 25 is arranged at the inlet water joint 23, and the outlet water temperature sensor 30 is arranged at the outlet water joint 24. The heating module 2 is configured to control the heating temperature of the heating tube 21 according to the inlet water temperature of the inlet water temperature sensor 25 and the outlet water temperature of the outlet water temperature sensor 30.

[0149] In some embodiments, Figure 6 and Figure 7 As shown, the heating module 2 also includes a first positioning member 27 and a second positioning member 28. The first positioning member 27 and the second positioning member 28 both include a positioning plate 271 and a plurality of flow holes 272 arranged around the center of the positioning plate 271. The positioning plate 271 of the first positioning member 27 is clamped between the water inlet joint 23 and the first end of the center column 221, and the positioning plate 271 of the second positioning member 28 is clamped between the water outlet joint 24 and the second end of the center column 221.

[0150] The positioning disk 271 of the first positioning member 27 and the first end of the center column 221 are positioned and connected via a protrusion and a groove, and the positioning disk 271 of the second positioning member 28 and the second end of the center column 221 are positioned and connected via a protrusion and a groove.

[0151] In some embodiments, the heating tube 21 includes a heating tube body and a heating element. The heating element is disposed on the heating tube body, and the heating element is configured to heat the heating tube body.

[0152] In some embodiments, at least part of the heating element and the jet cavity 222 are arranged relative to each other. Specifically, when multiple jet cavities 222 are arranged, the heating element forms multiple heating areas on the heating tube body. The multiple heating areas and the multiple jet cavities 222 are arranged relative to each other one by one along the radial direction of the heating tube. This design is conducive to enhancing the jet enhancement effect and minimizing the heat loss of the heating element.

[0153] In some embodiments, the coverage rate of the jet cavity 222 and the heating area of ​​the heating tube 21 along the axial direction of the heating tube is not less than K, and the value range of K is 85% to 95%, that is, K is greater than or equal to 85% and less than or equal to 95%. For example, K can specifically be 85%, 90% or 95%.

[0154] It should be noted that in order to maximize the heat exchange efficiency within the limited length of the heating tube 21, the coverage rate of the jet cavity 222 and the heating area of ​​the heating tube 21 along the axial direction is not less than 85% to 95%.

[0155] That is, the sum of the lengths of the plurality of jet cavities 222 is 85% to 95% of the total length of the heating area on the heating tube 21 . Exemplarily, the sum of the lengths of the four jet cavities 221 is 90% of the total length of the heating area on the heating tube 21 .

[0156] In some embodiments, the heating element comprises one of the following: a thick film resistor heater, a nanoelectronic film heater, a stainless steel heater, a gas heating device.

[0157] In one embodiment, when the heating element is an electric heating element, the heating tube body can be made of metal materials, such as stainless steel, cast aluminum, etc., and the outside of the heating tube body is provided with a thick film resistor heater, a nano electronic film heater, or a stainless steel heater, etc. When it is necessary to heat the fluid in the heating tube body, these heaters can be powered on, and then these heaters can generate high temperature and heat up the heating tube body. When the fluid flows in the heating tube body, the fluid can be heated.

[0158] In one embodiment, when the heating element is a heat exchange component, the heating tube body can be made of a metal material, such as stainless steel, and a gas heating device is provided on the outside of the heating tube body. When it is necessary to heat the fluid in the heating tube body, gas can be supplied to the gas heating device, and the gas heating device can ignite the gas after obtaining the gas to make it burn, thereby heating the heating tube body to increase its temperature. When the fluid flows in the heating tube body, the fluid can also be heated.

[0159] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not deviate from the spirit and scope of the technical solutions of the present invention, and should be included in the protection scope of the claims of the present invention.

Claims

1. A water dispenser, characterized in that: include: A heat storage module (1), wherein a water inlet end of the heat storage module (1) is used to communicate with a water supply system (5), and a parallel branch is provided between the water inlet end and the water outlet end of the heat storage module (1); A heating module (2), wherein a water inlet end of the heating module (2) is connected to a water outlet end of the heat storage module (1), and a water outlet end of the heating module (2) is connected to a water outlet (6) of a water dispenser; The parallel branches can be selectively turned on or off.

2. The water dispenser according to claim 1, characterized in that: The water dispenser further comprises: an operation panel, the operation panel being electrically connected to the control valve (9) on the parallel branch; The operation panel is used to control the opening and closing state of the control valve (9) so as to control the conduction or cutoff of the parallel branch.

3. The water dispenser according to claim 2, characterized in that: The water dispenser further comprises: a temperature sensing element (10), wherein the temperature sensing element (10) is electrically connected to the operation panel; The temperature sensing element (10) is used to collect the water supply temperature of the water supply system (5), and the operation panel is used to receive the target water intake temperature input by the user, and to control the opening and closing state of the control valve (9) according to the difference between the target water intake temperature and the water supply temperature.

4. The water dispenser according to claim 1, characterized in that: The water outlet end of the heating module (2) can be selectively connected to the heat storage module (1) or the water outlet (6); Wherein, when the water outlet end of the heating module (2) is connected to the heat storage module (1), the heat storage module (1) uses the hot water output by the heating module (2) to store heat.

5. The water dispenser according to claim 4, characterized in that: The water dispenser further comprises a valve control unit (3), wherein the valve control unit (3) has a first state and a second state; When the valve control unit (3) is in the first state, the water outlet end of the heating module (2) is connected to the water outlet (6) through the valve control unit (3); When the valve control unit (3) is in the second state, the water outlet of the heating module (2) is connected to the heat storage module (1) through the valve control unit (3), so as to form a circulating water circuit based on the heat storage module (1) and the heating module (2).

6. The water dispenser according to claim 5, characterized in that: The water dispenser further comprises a first trigger, the first trigger being electrically connected to the valve control unit (3); the first trigger being used to receive a water taking instruction signal, and the valve control unit (3) being used to operate in the first state according to the signal fed back by the first trigger; And / or, the water dispenser further comprises a second trigger, the second trigger is electrically connected to the valve control unit (3); the second trigger is used to receive a power-on command signal or a heat storage command signal, and the valve control unit (3) is used to operate in the second state according to the signal fed back by the second trigger.

7. The water dispenser according to claim 4, characterized in that: The water dispenser further comprises a pumping element (4); the pumping element (4) is used to drive water to flow through the heat storage module (1) and the parallel branch to the heating module (2).

8. The water dispenser according to claim 1, characterized in that: The heat storage module (1) comprises a shell (11), a heat exchanger (12) and a heat storage material; The shell (11) has a containing cavity, the heat exchanger (12) is arranged in the containing cavity, and the heat storage material is filled in the containing cavity between the heat exchanger (12) and the shell (11); The water outlet end of the heating module (2) can be selectively connected to the first end of the heat exchanger (12) or the water outlet (6); the first end of the heat exchanger (12) is used to connect to the water supply system (5), and the second end of the heat exchanger (12) is connected to the water inlet end of the heating module (2).

9. The water dispenser according to claim 8, characterized in that: The heat exchanger (12) comprises a coil (121); or, the heat exchanger (12) comprises a coil (121) and a fin assembly (122), at least a portion of the coil (121) is inserted into the fin assembly (122), or the coil (121) and the fin assembly (122) are stacked.

10. The water dispenser according to claim 8, characterized in that: The heat storage module (1) further comprises a heater (13), and the heater (13) is used to heat the heat storage material.

11. The water dispenser according to any one of claims 1 to 10, characterized in that: The heating module (2) comprises: a heating tube (21) and a jet component (22); One end of the heating pipe (21) is connected to the water outlet end of the heat storage module (1), and the other end is connected to the water outlet (6); The jet component (22) is arranged in the heating tube (21), and the jet component (22) comprises a jet cavity (222) and a water inlet and a jet hole (2220) connected to the jet cavity (222), and the jet direction of the jet hole (2220) is toward the inner wall of the heating tube (21).

12. The water dispenser according to claim 11, characterized in that: The jet assembly (22) comprises a central column (221) and a plurality of jet chambers (222); The plurality of jet cavities (222) are sequentially arranged along the axial direction of the central column (221), and a water-passing gap is formed between the side wall of the jet cavity (222) and the inner wall of the heating tube (21); Wherein, the water inlet is arranged on a side of the jet cavity (222) facing the heat storage module (1), and the jet hole (2220) is arranged on a side wall of the jet cavity (222).

13. The water dispenser according to claim 12, characterized in that: The distance between any two adjacent jet cavities (222) along the axial direction is greater than or equal to 2 mm and less than or equal to 12 mm.

14. The water dispenser according to claim 12, characterized in that: The coverage rate of the jet cavity (222) and the heating area of ​​the heating tube (21) along the axial direction is not less than K, and K is greater than or equal to 85% and less than or equal to 95%.

15. The water dispenser according to claim 12, characterized in that: The peripheral wall of the jet cavity (222) is provided with a water retaining wing, and the water retaining wing is extended along the circumference of the jet cavity (222); The peripheral wall of the water retaining wing is in contact with the inner wall of the heating tube (21), or a water-passing gap is formed between the peripheral wall of the water retaining wing and the inner wall of the heating tube (21).

16. The water dispenser according to claim 11, characterized in that: The heating tube (21) comprises a heating tube body and a heating element, wherein the heating element is arranged on the heating tube body; at least a part of the heating element and the jet cavity (222) are arranged relative to each other.

17. The water dispenser according to claim 16, characterized in that: The heating element includes one of the following: a thick film resistor heater, a nano-electronic film heater, a stainless steel heater, and a gas heating device.

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