Warm boiled water dispenser

Abstract

The embodiment of the invention provides a warm boiled water dispenser. The warm boiled water dispenser comprises a bucket used for providing cold water; the water bucket is communicated with a water inlet of the electric kettle in an openable and closable manner, so that cold water in the water bucket is introduced into the electric kettle; the heat exchanger is provided with a hot water path and a cold water path, and the hot water path of the heat exchanger clings to the cold water path of the heat exchanger; the water outlet of the electric kettle is communicated with the water inlet of the hot water path of the heat exchanger in an openable and closable manner, so that boiled water is introduced into the hot water path of the heat exchanger; the water bucket is communicated with a water inlet of a cold water path of the heat exchanger in an openable and closable mode so that cold water can be led into the cold water path, and boiled water is cooled through heat exchange to form warm boiled water. The technical problem that a traditional water dispenser cannot directly provide warm boiled water is solved.

Description

Technical Field

[0001] The present application relates to the technical field of water dispensers, and in particular to a warm boiled water dispenser. Background Art

[0002] As people's living standards continue to improve, people hope to drink boiled water directly from a tea bar machine or a water dispenser. However, existing drinking water equipment, especially tea bar machines, often directly provide boiled water, which needs to be taken after the boiled water cools naturally. There are also other drinking water equipment that heats the water through an instant heating device and then performs a hot and cold exchange, and the water is not really boiled.

[0003] For example, CN216584451U discloses a cold boiled water direct drinking water supply treatment system, which includes a raw water tank, a self-priming pump, a PP and carbon rod composite filter element, an RO membrane filter element, a pure water tank, a water pump and a water outlet. The pure water tank stores pure water obtained by filtering tap water with the PP and carbon rod composite filter element and the RO membrane filter element, and the water pump pumps the pure water stored in the pure water tank out from the water outlet; a heating pipe for quickly heating the pure water to a boiling state is also arranged on the pipeline between the water pump and the water outlet; a heat exchange module for preheating the pure water pumped into the heating pipe in advance through convection circulation is also arranged on the pipeline between the water pump and the pure water tank; a regulating valve for adjusting the mixing ratio of boiling water and cooled boiled water is also connected to the rear end of the heating pipe; the water outlet supplies pure boiled water of different temperatures through the heating pipe, the heat exchange module and the regulating valve. This method of producing warm boiled water still heats the water through an instant heating device, and does not actually boil the water. At the same time, the energy transfer caused by heat exchange is not utilized, resulting in a waste of energy.

[0004] That is, traditional water dispensers can only provide boiled water, and then wait for the boiled water to cool naturally to become warm boiled water, or can only provide unboiled warm water instead of real warm boiled water.

[0005] Therefore, the inability of traditional water dispensers to directly provide warm boiled water is a technical problem that those skilled in the art are in urgent need of solving.

[0006] The above information disclosed in the background section is only for enhancing understanding of the background of the present application and therefore it may contain information that does not form the prior art known to a person of ordinary skill in the art. Summary of the invention

[0007] The embodiment of the present application provides a warm boiled water dispenser to solve the technical problem that the traditional water dispenser cannot directly provide warm boiled water.

[0008] The embodiment of the present application provides a warm boiled water dispenser, comprising:

[0009] buckets for providing cold water;

[0010] An electric kettle for boiling water, wherein the water bucket and the water inlet of the electric kettle are connected in an openable and closable manner so as to introduce cold water from the water bucket into the electric kettle;

[0011] A heat exchanger having a hot water channel and a cold water channel, wherein the hot water channel of the heat exchanger and the cold water channel of the heat exchanger are in close contact;

[0012] Wherein, the water outlet of the electric kettle and the water inlet of the hot water circuit of the heat exchanger are openably and closably connected to introduce boiled water into the hot water circuit of the heat exchanger;

[0013] The water bucket and the water inlet of the cold water circuit of the heat exchanger are openably and closably connected to introduce cold water into the cold water circuit, and the temperature of the boiled water is reduced through heat exchange to form warm boiled water.

[0014] The embodiment of the present application adopts the above technical solution, which has the following technical effects:

[0015] The warm boiled water dispenser of the embodiment of the present application can directly provide real warm boiled water. Real warm boiled water is formed by boiling water to form boiled water, and then the temperature of the boiled water is reduced. The cold water in the bucket enters the electric kettle, and the electric kettle boils the water to form boiled water; then, the boiled water enters the hot water circuit of the heat exchanger through the water outlet of the electric kettle; the cold water in the bucket enters the cold water circuit of the heat exchanger. Since the hot water circuit of the heat exchanger and the cold water circuit of the heat exchanger are in close contact, the hot water circuit of the heat exchanger and the cold water circuit of the heat exchanger will perform heat exchange, and the heat exchange reduces the temperature of the water in the hot water circuit of the heat exchanger and increases the temperature of the water in the cold water circuit of the heat exchanger, thereby realizing the cooling of the boiled water to form warm boiled water through heat exchange, and can realize the rapid provision of warm boiled water. The warm boiled water dispenser of the embodiment of the present application first forms boiled water, and then quickly cools the boiled water to form warm boiled water through heat exchange, thereby realizing the rapid provision of real warm boiled water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A schematic diagram of a warm boiled water dispenser according to an embodiment of the present application;

[0018] Figure 2 for Figure 1 The schematic diagram of the water circuit principle of the warm boiled water dispenser shown;

[0019] Figure 3 for Figure 1 The schematic diagram of the water path of the warm boiled water dispenser shown;

[0020] Figure 4 for Figure 2 A schematic diagram of a heat exchanger for a warm boiled water dispenser is shown;

[0021] Figure 5 for Figure 4 A cross-sectional view of the heat exchanger shown;

[0022] Figure 6 for Figure 1 The flowchart of the warm boiled water function of the warm boiled water dispenser shown;

[0023] Figure 7 for Figure 1 A partial flow chart of the warm boiled water function of the warm boiled water dispenser shown.

[0024] Reference numerals:

[0025] Water outlet box 1, backrest 2, electric kettle 3, box body 4,

[0026] Bucket 101, water storage tank 108,

[0027] Heat exchanger 111, cold water circuit 111-1, hot water circuit 111-2, spring 111-3,

[0028] Three-way I102, temperature sensor I121, water pump I112, three-way solenoid valve I110,

[0029] Three-way solenoid valve III105, hot water pump 106,

[0030] Temperature sensor II122,

[0031] Three-way II104, three-way solenoid valve II109, water pump II103,

[0032] Two-way solenoid valve 107. DETAILED DESCRIPTION

[0033] In order to make the technical solutions and advantages in the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0034] Embodiment 1

[0035] like Figure 1 , Figure 2 , Figure 3 As shown, the warm boiled water dispenser of the embodiment of the present application comprises:

[0036] A bucket 101 for providing cold water;

[0037] An electric kettle 3 for boiling water, wherein the water bucket 101 and the water inlet of the electric kettle 3 are openably connected to introduce cold water from the water bucket into the electric kettle;

[0038] A heat exchanger 111 having a hot water channel and a cold water channel, wherein the hot water channel of the heat exchanger and the cold water channel of the heat exchanger are in close contact;

[0039] The water outlet of the electric kettle 3 and the water inlet of the hot water circuit of the heat exchanger are openably connected to introduce boiled water into the hot water circuit of the heat exchanger;

[0040] The water bucket 101 and the water inlet of the cold water circuit of the heat exchanger are openably connected to introduce cold water into the cold water circuit, and the temperature of the boiled water is reduced through heat exchange to form warm boiled water.

[0041] The warm boiled water dispenser of the embodiment of the present application can directly provide real warm boiled water. Real warm boiled water is formed by boiling water to form boiled water, and then the temperature of the boiled water is reduced. The cold water in the water bucket 101 enters the electric kettle 3, and the electric kettle 3 boils the water to form boiled water; then, the boiled water enters the hot water circuit of the heat exchanger 111 through the water outlet of the electric kettle 3; the cold water in the water bucket 101 enters the cold water circuit of the heat exchanger. Since the hot water circuit of the heat exchanger and the cold water circuit of the heat exchanger are in close contact, the hot water circuit of the heat exchanger and the cold water circuit of the heat exchanger will perform heat exchange, and the heat exchange reduces the temperature of the water in the hot water circuit of the heat exchanger and increases the temperature of the water in the cold water circuit of the heat exchanger, thereby realizing the cooling of the boiled water to form warm boiled water through heat exchange, and can realize the rapid provision of warm boiled water. The warm boiled water dispenser of the embodiment of the present application first forms boiled water, and then quickly cools the boiled water to form warm boiled water through heat exchange, thereby realizing the rapid provision of real warm boiled water.

[0042] In implementation, such as Figure 2 and Figure 3 As shown, the warm boiled water dispenser also includes:

[0043] A water storage tank 108, the water inlet of the water storage tank 108 is connected to the water outlet of the cold water circuit of the heat exchanger, the first water outlet of the water storage tank 108 and the water inlet of the electric kettle 3 are openably connected, and the second water outlet of the water storage tank 108 and the water bucket 101 are openably connected.

[0044] The water inlet of the water storage tank 108 is connected to the water outlet of the cold water circuit of the heat exchanger, that is, they are always in a connected state. When the heat exchanger is working, the cold water in the cold water circuit of the heat exchanger can enter the water storage tank at any time after heat exchange, instead of directly returning to the water bucket 101. This provides a prerequisite for recycling the water in the water storage tank.

[0045] There are two ways for the water in the water storage tank 108 to go out. One is the openable and closable connection between the first water outlet of the water storage tank 108 and the water inlet of the electric kettle 3. When in the connected state, the water enters the electric kettle 3 and is boiled to form boiled water, which is the prerequisite for the subsequent formation of warm boiled water and provides conditions for the recycling of warm water formed after the cold water absorbs energy during the heat exchange process. The other is the openable and closable connection between the second water outlet of the water storage tank 108 and the water bucket 101. When in the connected state, the water enters the water bucket 101, which is particularly suitable for the case where there is a lot of water in the water storage tank 108. These two treatments of the water in the water storage tank 108 both achieve the recycling of the water in the water storage tank.

[0046] In addition, if Figure 2 and Figure 3 As shown, due to the independent water bucket 101 and the independent electric kettle 3.

[0047] Therefore, it can also meet the different needs of users for cold water and boiled water, and increase the practicality and application scope of the warm boiled water dispenser.

[0048] Specifically, Figure 1 As shown, the warm boiled water dispenser also includes a box body 4, a backrest 2, and a water outlet box 1. Most of the components of the warm boiled water dispenser, except for the backrest 2, the water outlet box 1, and the electric kettle 3, are arranged in the box body 4, such as the water bucket 101, the heat exchanger 111, and the water storage tank 108.

[0049] Specifically, the electric kettle 3 has a high water level detection device and a low water level detection device.

[0050] When the low water level detection device of the electric kettle 3 is triggered, the actual water level in the electric kettle 3 is lower than the minimum water level, that is, the water level in the electric kettle 3 is low. At this time, the electric kettle 3 cannot be heated to prevent burning.

[0051] When the high water level detection device of the electric kettle 3 is triggered, the actual water level in the electric kettle 3 reaches the maximum water level, that is, the electric kettle 3 reaches the high water level, and water cannot be added into the electric kettle 3 at this time.

[0052] When the water level of the electric kettle 3 is between the minimum water level and the maximum water level, the water level of the electric kettle 3 is a normal water level.

[0053] Specifically, the water storage tank 108 has a high water level detection device and a low water level detection device.

[0054] When the low water level detection device of the water tank 108 is triggered, the actual water level in the water tank 108 is lower than the minimum water level, that is, the water level in the water tank 108 is low, and the water tank 108 cannot provide water to the electric kettle 3 at this time.

[0055] When the high water level detection device of the water tank 108 is triggered, the actual water level in the water tank 108 reaches the maximum water level, that is, the water tank 108 reaches the high water level, and the water tank 108 needs to be drained.

[0056] When the water level of the water storage tank 108 is between the minimum water level and the maximum water level, the water level of the water storage tank 108 is a normal water level.

[0057] Embodiment 2

[0058] The warm boiled water dispenser of the embodiment of the present application is further improved on the basis of the first embodiment.

[0059] In implementation, such as Figure 2 , Figure 4 and Figure 5 As shown, the flow direction of the hot water circuit of the heat exchanger 111 is opposite to the flow direction of the cold water circuit of the heat exchanger 111.

[0060] During the heat exchange process, the flow direction of the hot water circuit of the heat exchanger is opposite to the flow direction of the cold water circuit of the heat exchanger. This configuration is called countercurrent heat exchange. Countercurrent heat exchange has the following technical effects:

[0061] Higher heat transfer efficiency can reduce the temperature of boiling water faster;

[0062] Reduced heat transfer area requirements: Since countercurrent heat exchange improves heat transfer efficiency, this means that in order to achieve the same heat transfer effect, a smaller heat transfer area is required. This helps to reduce equipment size and manufacturing costs.

[0063] In implementation, such as Figure 5 As shown, the hot water circuit of each heat exchanger corresponds to the cold water circuits of two heat exchangers, the hot water circuits of the heat exchangers are located in the middle layer, and the cold water circuits of the two heat exchangers are closely attached to the inner and outer sides of the hot water circuits of the heat exchangers.

[0064] In this way, the heat exchanger has a three-layer nested structure, the middle layer is the hot water circuit of the heat exchanger, and the inner and outer sides of the hot water circuit of the heat exchanger are closely attached to a layer of cold water circuit of the heat exchanger. In this way, the heat exchange efficiency is higher and the heat transfer rate per unit area is higher; thus, the size of the heat exchanger can be smaller and the structure is more compact.

[0065] In implementation, such as Figure 5 As shown, the heat exchanger includes a first layer of cylinder, a second layer of cylinder, a third layer of cylinder, and a fourth layer of cylinder from inside to outside;

[0066] The hot water channel 111 - 2 is between the second layer cylinder and the third layer cylinder;

[0067] There is a cold water channel between the first layer of cylinders and the second layer of cylinders, and there is a cold water channel 111 - 1 between the third layer of cylinders and the fourth layer of cylinders.

[0068] The heat exchanger adopts a multi-layer cylinder structure, which is divided into the first cylinder, the second cylinder, the third cylinder and the fourth cylinder from the inside to the outside. The hot water circuit is located between the second and third cylinders, while the cold water circuit is divided into two parts, located between the first and second cylinders and between the third and fourth cylinders. This design can achieve efficient heat exchange.

[0069] In implementation, such as Figure 5 As shown, springs 111 - 3 for reducing the water flow rate are respectively fixed in the cold water circuit of the heat exchanger and the hot water circuit of the heat exchanger.

[0070] By reducing the water flow rate in the cold water circuit of the heat exchanger and the hot water circuit of the heat exchanger, the heat exchange time can be increased, thereby improving the heat exchange efficiency.

[0071] In implementation, such as Figure 5 As shown, the first layer cylinder, the second layer cylinder, the third layer cylinder and the fourth layer cylinder are made of stainless steel;

[0072] The spring is made of stainless steel.

[0073] Stainless steel, as the material for the multi-layer cylinder and spring, can not only significantly improve the durability, reliability and safety of the heat exchanger, but also help meet the special food safety requirements of warm boiled water dispensers.

[0074] Embodiment 3

[0075] The warm boiled water dispenser of the embodiment of the present application is further improved on the basis of the first and second embodiments.

[0076] The warm boiled water dispenser of the embodiment of the present application has the following features on the basis of the first and second embodiments.

[0077] In implementation, such as Figure 2 and Figure 3 As shown, the warm boiled water dispenser also includes:

[0078] The three-way valve I102, the temperature sensor I121, the water pump I112, and the three-way solenoid valve I110 are sequentially connected between the water bucket 101 and the water inlet of the cold water circuit of the heat exchanger to achieve openable and closable communication between the water bucket 101 and the water inlet of the cold water circuit of the heat exchanger;

[0079] The three-way solenoid valve III105 and the hot water pump 106 are sequentially connected between the water outlet of the electric kettle 3 and the water inlet of the hot water circuit of the heat exchanger to achieve openable and closable communication between the water outlet of the electric kettle 3 and the water inlet of the hot water circuit of the heat exchanger;

[0080] The temperature sensor II122 is connected to the outlet of the hot water circuit of the heat exchanger; wherein the temperature sensor II122 is used to detect the temperature of warm boiled water.

[0081] In implementation, such as Figure 2 and Figure 3 As shown, the warm boiled water dispenser also includes:

[0082] The three-way II104, the three-way solenoid valve II109, and the water pump II103 are sequentially connected between the three-way I102 and the three-way solenoid valve III105 to achieve openable and closable communication between the water bucket 101 and the water inlet of the electric kettle 3;

[0083] A normally closed two-way solenoid valve 107 is disposed between the three-way valve II 104 and the second water outlet of the water storage tank 108 to achieve openable and closable communication between the water bucket 101 and the second water outlet of the water storage tank 108;

[0084] The first water outlet of the water storage tank 108 is connected to the three-way solenoid valve II109 to achieve openable and closable communication between the first water outlet of the water storage tank 108 and the water inlet of the electric kettle 3 .

[0085] In implementation, such as Figure 2 and Figure 3 As shown, the warm boiled water dispenser also includes:

[0086] The water outlet of the water dispenser is arranged on the water outlet box 1;

[0087] A flow meter, a one-way valve, and a three-way connection III are sequentially connected between the temperature sensor II122 and the water outlet of the water dispenser;

[0088] The three-way solenoid valve I is connected to the three-way valve III to enable an openable and closable connection between the water bucket 101 and the water outlet of the water dispenser.

[0089] Combine the following Figure 2 and Figure 3 The connections of the various components of the water circuit of the warm water dispenser are explained in order from bottom to top:

[0090] The water bucket 101 and the tee I 102 are connected via a hose (the following connection methods are all connected via a hose);

[0091] The other end of the tee I 102 is connected to the tee II 104 ; one end of the tee II 104 is connected to the second water outlet of the water storage tank 108 via a two-way valve 107 .

[0092] One end of the three-way valve II 104 is connected to one end of the three-way solenoid valve II 109, one end of the three-way valve II 109 is connected to the first water outlet of the water storage tank, and the other end is connected to the water pump II 103;

[0093] The other end of the water pump II is connected to the three-way solenoid valve III105, the other end of the three-way solenoid valve III105 is connected to the electric kettle 3 through the bottom water supply device, and the last passage of the three-way solenoid valve III105 is connected to the hot water pump 106, the other end of the hot water pump 106 is connected to the water inlet of the hot water water circuit of the heat exchanger 111, and the water outlet of the hot water circuit of the heat exchanger 111 is connected to the water outlet box 1.

[0094] The last end of the three-way valve Ⅰ102 is connected to the water pump Ⅰ112, and the other end of the water pump Ⅰ112 is connected to the three-way solenoid valve Ⅰ110, the other end of the three-way valve Ⅰ110 is connected to the water inlet of the cold water circuit of the heat exchanger 111, the water outlet of the cold water circuit of the heat exchanger 111 is connected to the water inlet of the water tank 108, and the last end of the three-way valve Ⅰ110 is connected to the water outlet box 1.

[0095] Embodiment 4

[0096] The warm boiled water dispenser of the embodiment of the present application is further improved on the basis of the third embodiment.

[0097] The warm boiled water dispenser has warm boiled water function, full automatic function, boiling water function and cold water function; the warm boiled water function and full automatic function are the focus of this application.

[0098] The warm boiled water function, such as the various set temperature ranges of warm boiled water include: warm boiled water 50℃, 60℃, 70℃, 80℃, 90℃; the set water output of warm boiled water includes 100ml, 200ml, 300ml, 400ml, 500ml; the warm boiled water function is a function of directly providing warm boiled water within a certain range without boiling the water again under the condition that there is hot water in the electric kettle 3.

[0099] Fully automatic function, the fully automatic function itself has a set temperature selected by the fully automatic function and a set water output selected by the fully automatic function. That is, the fully automatic function has a default set temperature for warm boiled water and also has a default set water output for warm boiled water. The fully automatic function is that whether there is water or not in the electric kettle 3, the warm boiled water dispenser can automatically add water to the electric kettle 3 (if necessary), boil the water to form boiled water, perform heat exchange on the boiled water, and output water at the set temperature and the set water output selected by the fully automatic function.

[0100] During implementation, the warm boiled water dispenser also includes a control unit.

[0101] The following is an explanation of the warm boiled water function:

[0102] The control unit is used for:

[0103] Receiving the detected actual temperature and actual water level of the boiled water in the electric kettle 3;

[0104] When the actual water level of the electric kettle 3 is at a low water level, each set temperature of the warm boiled water function is controlled to be untriggerable;

[0105] When the actual water level of the electric kettle 3 is the normal water level and the actual temperature of the water in the electric kettle 3 is lower than the set temperatures of the warm boiled water function, the set temperatures of the warm boiled water function are controlled to be untriggerable;

[0106] When the actual water level of the electric kettle 3 is the normal water level and the actual temperature of the water in the electric kettle 3 is higher than the set temperature of one of the warm boiled water functions, the set temperature of the warm boiled water function that is lower than the actual temperature of the water in the electric kettle 3 is triggerable, and the set temperature that is higher than the actual temperature of the water in the electric kettle 3 is not triggerable.

[0107] For example, the low water level standard of the electric kettle 3 is 300 ml; the various set temperature ranges for warm boiled water include: warm boiled water 50°C, 60°C, 70°C, 80°C, and 90°C.

[0108] When the water level in the electric kettle 3 is 200 ml, that is, the water level in the electric kettle is low, the control of warm boiled water at 50°C, 60°C, 70°C, 80°C, and 90°C cannot be triggered.

[0109] When the water level in the electric kettle is 500 ml, that is, the water level in the electric kettle is normal, and the actual temperature of the water in the electric kettle 3 is 20°C, the control of warm boiled water at 50°C, 60°C, 70°C, 80°C, and 90°C cannot be triggered.

[0110] When the water level in the electric kettle is 500ml, that is, the normal water level in the electric kettle, and the actual temperature of the water in the electric kettle 3 is 65°C, the control of warm boiled water at 50°C and 60°C is triggerable, and 70°C, 80°C and 90°C are not triggerable.

[0111] like Figure 6 As shown, when a set temperature of the warm boiled water function is triggered, the control unit is also used for:

[0112] The three-way solenoid valve III105, the hot water pump 106, and the water pump I112 are turned on, and the duty ratios of the hot water pump 106 and the water pump I112 are adjusted according to the set temperature of the triggered warm boiled water function, the temperature sensor II122, and the temperature sensor I121, so as to achieve the temperature of the warm boiled water to be stable within the preset fluctuation range of the triggered set temperature. In this process, if the water level in the water storage tank 108 reaches the high water level, the two-way solenoid valve 107 is controlled to be turned on until the water discharge is completed.

[0113] By opening the three-way solenoid valve III105 and the hot water pump 106, controllable connection between the water outlet of the electric kettle 3 and the water inlet of the hot water circuit of the heat exchanger is achieved, thereby introducing the water in the electric kettle 3 into the hot water circuit of the heat exchanger.

[0114] Turn on the water pump I112, and the cold water in the water bucket 101 enters the cold water circuit of the heat exchanger through the three-way valve I102, the temperature sensor I121, the water pump I112, and the three-way solenoid valve I110, thereby achieving controllable connection between the water bucket 101 and the water inlet of the cold water circuit of the heat exchanger, thereby achieving the introduction of the cold water in the water bucket 101 into the cold water circuit of the heat exchanger.

[0115] By adjusting the duty cycle of the hot water pump 106 and the water pump 1112, the hot water inlet amount of the hot water water circuit of the heat exchanger and the cold water inlet amount of the cold water circuit of the heat exchanger are controlled.

[0116] The warm boiled water dispenser has the function of closed-loop feedback of water temperature, and the user can select the warm boiled water temperature according to the set temperature that triggers the warm boiled water function. This is achieved by the temperature sensor II, the temperature sensor I, the hot water pump 106, the water pump I112, and the control unit working together.

[0117] To illustrate with an example, when the user triggers the set temperature of 60℃ for using the warm boiled water function, the temperature sensor II of the outlet of the hot water circuit of the heat exchanger will detect the outlet temperature of the warm boiled water. If this temperature deviates from the set value of 60℃, the duty cycle of the hot water pump 106 and the water pump I112 will be adjusted to adjust the water intake of hot water and cold water, so that the outlet water temperature of the hot water circuit of the heat exchanger is stabilized within the set temperature range of 60℃±3℃.

[0118] It should be noted that when the warm boiled water dispenser is powered on and the warm boiled water function is used for the first time, the control unit is also used to: first turn on the water pump I112 to supply water to the cold water circuit of the heat exchanger, and then turn on the three-way solenoid valve III105 and the hot water pump 106 after 3 seconds.

[0119] The following is an explanation of the fully automatic function:

[0120] like Figure 7As shown, when the fully automatic function is triggered, the control unit is also used to:

[0121] When the electric kettle 3 is at a high water level, the electric kettle 3 is controlled to heat water; the electric kettle 3 stops heating after the water boils;

[0122] The three-way solenoid valve III105, the hot water pump 106, and the water pump I112 are turned on, and the duty ratios of the hot water pump 106 and the water pump I112 are adjusted according to the set temperature selected by the full-automatic function, the temperature sensor II, and the temperature sensor I, so as to achieve the temperature of the warm boiled water to be stable within the preset fluctuation range of the set temperature selected by the full-automatic function. In this process, if the water level in the water storage tank 108 reaches the high water level, the two-way solenoid valve 107 is controlled to be turned on until the water discharge is completed.

[0123] Specifically, during the heating process of the electric kettle 3, if the heating is stopped, the two-way electromagnetic valve 107 is controlled to be closed, that is, the water storage tank is stopped from being emptied.

[0124] During implementation, when the electric kettle 3 is at a high water level, the electric kettle 3 is controlled to heat water; at the same time, the second water outlet of the water storage tank 108 and the water bucket 101 are controlled to be connected for a preset time (such as the preset time is two minutes) to discharge the water in the water storage tank 108.

[0125] That is, when the electric kettle 3 is heated, the water in the water storage tank 108 is emptied. After the subsequent heat exchange, the water in the water storage tank 108 is the water flowing out of the water outlet of the cold water waterway of the heat exchanger, and the temperature is higher than that of cold water.

[0126] In implementation, such as Figure 7 As shown, when the fully automatic function is triggered, the control unit is also used to:

[0127] When the water level in the electric kettle 3 is low and the water level in the water storage tank 108 is low, the water pump II 103 is controlled to be turned on to connect the water bucket 101 and the electric kettle 3, so as to introduce the cold water in the water bucket into the electric kettle 3 until the electric kettle 3 reaches a high water level;

[0128] Then continue with the following steps:

[0129] When the electric kettle 3 is at a high water level, the electric kettle 3 is controlled to heat water; the electric kettle 3 stops heating after the water boils;

[0130] The three-way solenoid valve III105, the hot water pump 106, and the water pump I112 are turned on, and the duty ratios of the hot water pump 106 and the water pump I112 are adjusted according to the set temperature selected by the full-automatic function, the temperature sensor II, and the temperature sensor I, so as to achieve the temperature of the warm boiled water to be stable within the preset fluctuation range of the set temperature selected by the full-automatic function. In this process, if the water level in the water storage tank 108 reaches the high water level, the two-way solenoid valve 107 is controlled to be turned on until the water discharge is completed.

[0131] In implementation, such as Figure 7 As shown, when the fully automatic function is triggered, the control unit is also used to:

[0132] When the water level in the electric kettle 3 is low and the water level in the water storage tank 108 is normal, the three-way solenoid valve II109 and the water pump II103 are controlled to start pumping the water in the water storage tank 108 into the electric kettle 3. In this process:

[0133] If the water level in the water storage tank 108 is always normal, until the electric kettle 3 reaches a high water level;

[0134] If the normal water level of the water tank 108 becomes a low water level, the three-way solenoid valve II109 is controlled to be closed and the water pump II103 is kept open, so as to stop the water from the water tank 108 from being pumped into the electric kettle 3 and to introduce the cold water in the bucket into the electric kettle 3 until the electric kettle 3 reaches a high water level.

[0135] When the electric kettle 3 reaches a high water level, the electric kettle 3 is controlled to heat water; the electric kettle 3 stops heating after the water boils;

[0136] The three-way solenoid valve III105, the hot water pump 106, and the water pump I112 are turned on, and the duty ratios of the hot water pump 106 and the water pump I112 are adjusted according to the set temperature selected by the full-automatic function, the temperature sensor II, and the temperature sensor I, so as to achieve the temperature of the warm boiled water to be stable within the preset fluctuation range of the set temperature selected by the full-automatic function. In this process, if the water level in the water storage tank 108 reaches the high water level, the two-way solenoid valve 107 is controlled to be turned on until the water discharge is completed.

[0137] In this way, no matter what the water level in the electric kettle is or what the water level in the water tank is, as long as the user triggers the fully automatic function, the warm boiled water dispenser will automatically fill with water, boil the water to form warm boiled water, heat exchange the boiled water to form warm boiled water, and provide warm boiled water with the set temperature and set water volume selected by the fully automatic function, truly realizing the fully automatic provision of warm boiled water.

[0138] The following is an explanation of other functions of the warm boiled water dispenser:

[0139] In implementation, the control unit is also used for:

[0140] When the warm boiled water function is triggered, and the water output from the hot water outlet of the heat exchanger reaches the set water output of the triggered warm boiled water function, the hot water pump 106, the water pump I112 and the three-way solenoid valve III105 are controlled to be closed in sequence;

[0141] When the fully automatic function is triggered and the water output from the hot water outlet of the heat exchanger reaches the set water output selected by the fully automatic function, the hot water pump 106, water pump I112 and three-way solenoid valve III105 are controlled to be closed in sequence.

[0142] For example, the warm boiled water function can select the warm boiled water set temperature and the warm boiled water set water output options. The various set temperature ranges of warm boiled water include: warm boiled water 50℃, 60℃, 70℃, 80℃, 90℃. The set water output of warm boiled water can include 100ml, 200ml, 300ml, 400ml, 500ml, etc. The user selects warm boiled water 50℃ and 300ml. The actual water outlet temperature of warm boiled water is stable within the preset fluctuation range of the set temperature, such as 50℃±3℃; the control unit can also control the actual water output of warm boiled water to 300ml±5ml, which is achieved by: when the warm boiled water function is triggered, and the water outlet of the hot water waterway of the heat exchanger reaches the set water output of the triggered warm boiled water, the hot water pump 106, the water pump I112 and the three-way solenoid valve III105 are controlled to be closed in sequence.

[0143] Specifically, the actual water output from the water outlet of the hot water circuit of the heat exchanger is provided to the control unit by the flow meter.

[0144] In implementation, the control unit is also used for:

[0145] When the water level in the water storage tank is at a high water level, the two-way solenoid valve 107 is controlled to open so as to discharge the water in the water storage tank 108 into the water bucket 101 .

[0146] In the description of the present application and its embodiments, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", "height", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0147] In the present application and its embodiments, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0148] In the present application and its embodiments, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0149] The disclosure above provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0150] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0151] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A warm boiled water dispenser, characterized in that: include: A bucket (101) for providing cold water; An electric kettle (3) for boiling water, wherein the water bucket (101) and the water inlet of the electric kettle (3) are connected in an openable and closable manner so as to introduce cold water from the water bucket into the electric kettle; A heat exchanger (111) having a hot water channel and a cold water channel, wherein the hot water channel of the heat exchanger and the cold water channel of the heat exchanger are in close contact; The water outlet of the electric kettle (3) and the water inlet of the hot water circuit of the heat exchanger are openably and closably connected to introduce water in the electric kettle into the hot water circuit of the heat exchanger; The water bucket (101) and the water inlet of the cold water circuit of the heat exchanger are openably and closably connected to introduce cold water into the cold water circuit, and the temperature of the boiled water is reduced through heat exchange to form warm boiled water.

2. The warm boiled water dispenser according to claim 1, characterized in that: Also includes: A water storage tank (108), wherein the water inlet of the water storage tank (108) is connected to the water outlet of the cold water circuit of the heat exchanger, the first water outlet of the water storage tank (108) is connected to the water inlet of the electric kettle (3) in an openable and closable manner, and the second water outlet of the water storage tank (108) is connected to the water bucket (101) in an openable and closable manner.

3. The warm boiled water dispenser according to claim 2, characterized in that: The flow direction of the hot water circuit of the heat exchanger is opposite to the flow direction of the cold water circuit of the heat exchanger.

4. The warm boiled water dispenser according to claim 3, characterized in that: The hot water circuit of each heat exchanger corresponds to the cold water circuits of two heat exchangers, the hot water circuits of the heat exchangers are located in the middle layer, and the cold water circuits of the two heat exchangers are closely attached to the inner and outer sides of the hot water circuits of the heat exchangers.

5. The warm boiled water dispenser according to claim 4, characterized in that: The heat exchanger comprises, from inside to outside, a first layer of cylinder, a second layer of cylinder, a third layer of cylinder, and a fourth layer of cylinder; The hot water channel is between the second layer cylinder and the third layer cylinder; There is one cold water channel between the first layer of cylinders and the second layer of cylinders, and there is one cold water channel between the third layer of cylinders and the fourth layer of cylinders.

6. The warm boiled water dispenser according to claim 5, characterized in that: Springs for reducing water flow rate are respectively fixed in the cold water circuit of the heat exchanger and the hot water circuit of the heat exchanger.

7. The warm boiled water dispenser according to claim 6, characterized in that: The first layer cylinder, the second layer cylinder, the third layer cylinder and the fourth layer cylinder are made of stainless steel; The spring is made of stainless steel.

8. The warm boiled water dispenser according to any one of claims 2 to 7, characterized in that: Also includes: A three-way valve I (102), a temperature sensor I (121), a water pump I (112), and a three-way solenoid valve I (110) are sequentially connected between the water bucket (101) and the water inlet of the cold water circuit of the heat exchanger to achieve openable and closable communication between the water bucket (101) and the water inlet of the cold water circuit of the heat exchanger; A three-way solenoid valve III (105) and a hot water pump (106) are sequentially connected between the water outlet of the electric kettle (3) and the water inlet of the hot water circuit of the heat exchanger, so as to realize openable and closable communication between the water outlet of the electric kettle (3) and the water inlet of the hot water circuit of the heat exchanger; A temperature sensor II (122) is connected to the water outlet of the hot water circuit of the heat exchanger; wherein the temperature sensor II is used to detect the temperature of warm boiled water.

9. The warm boiled water dispenser according to claim 8, characterized in that: Also includes: A three-way II (104), a three-way solenoid valve II (109), and a water pump II (103) are sequentially connected between the three-way I (102) and the three-way solenoid valve III (105) to achieve openable and closable communication between the water bucket (101) and the water inlet of the electric kettle (3); A normally closed two-way solenoid valve (107) is arranged between the three-way valve II (104) and the second water outlet of the water storage tank (108) to achieve openable and closable communication between the second water outlet of the water storage tank (108) and the water bucket (101); The first water outlet of the water storage tank (108) is connected to the three-way solenoid valve II (109) to achieve openable and closable communication between the first water outlet of the water storage tank (108) and the water inlet of the electric kettle (3).

10. The warm boiled water dispenser according to claim 9, characterized in that: Also includes: The water outlet of the water dispenser; A flow meter, a one-way valve, and a three-way connection III are sequentially connected between the temperature sensor II (122) and the water outlet of the water dispenser; Wherein, the three-way solenoid valve I and the three-way valve III are connected to enable the water bucket (101) and the water outlet of the water dispenser to be openably and closably connected.

11. The warm boiled water dispenser according to claim 10, characterized in that: The warm boiled water dispenser also includes a control unit; the control unit is used to: receiving the detected actual temperature and actual water level of the boiled water in the electric kettle (3); When the actual water level of the electric kettle (3) is at a low water level, each set temperature of the warm boiled water function is controlled to be untriggerable; When the actual water level of the electric kettle (3) is the normal water level and the actual temperature of the water in the electric kettle (3) is lower than the respective set temperatures of the warm boiled water function, the respective set temperatures of the warm boiled water function are controlled to be non-triggerable; When the actual water level of the electric kettle (3) is at a normal water level and the actual temperature of the water in the electric kettle (3) is higher than the set temperature of one of the warm boiled water functions, the set temperature of the warm boiled water function that is lower than the actual temperature of the water in the electric kettle (3) is triggerable, and the set temperature that is higher than the actual temperature of the water in the electric kettle (3) is not triggerable.

12. The warm boiled water dispenser according to claim 11, characterized in that: When a set temperature of the warm boiled water function is triggered, the control unit is further used to: The three-way solenoid valve III (105), the hot water pump (106), and the water pump I (112) are turned on, and the duty cycles of the hot water pump (106) and the water pump I (112) are adjusted according to the set temperature of the triggered warm boiled water function, the temperature sensor II (122), and the temperature sensor I (121), so as to achieve the temperature of the warm boiled water being stable within the preset fluctuation range of the triggered set temperature.

13. The warm boiled water dispenser according to claim 12, characterized in that: When the fully automatic function is triggered, the control unit is also used to: When the electric kettle (3) is at a high water level, controlling the electric kettle (3) to heat water; The electric kettle (3) stops heating after the water boils; The three-way solenoid valve III (105), the hot water pump (106) and the water pump I (112) are opened, and the duty ratios of the hot water pump (106) and the water pump I (112) are adjusted according to the set temperature selected by the full automatic function, the temperature sensor II (122) and the temperature sensor I (121), so as to achieve the temperature of the warm boiled water being stable within the preset fluctuation range of the set temperature selected by the full automatic function.

14. The warm boiled water dispenser according to claim 13, characterized in that: When the water level of the electric kettle (3) is at a normal level, controlling the electric kettle (3) to heat water; At the same time, the second water outlet of the water storage tank (108) and the water bucket (101) are controlled to be connected for a preset time to discharge the water stored in the water storage tank (108).

15. The warm boiled water dispenser according to claim 14, characterized in that: When the fully automatic function is triggered, the control unit is also used to: When the water level in the electric kettle (3) is low and the water storage tank (108) is low, the water pump II (103) is controlled to be turned on to connect the water bucket (101) and the electric kettle (3) so as to introduce the cold water in the water bucket into the electric kettle (3) until the electric kettle (3) reaches a high water level.

16. The warm boiled water dispenser according to claim 15, characterized in that: When the fully automatic function is triggered, the control unit is also used to: When the water level in the electric kettle (3) is low and the water level in the water storage tank (108) is normal, the three-way solenoid valve II (109) and the water pump II (103) are controlled to start pumping water from the water storage tank (108) into the electric kettle (3). During this process: If the water level in the water storage tank (108) is always at a normal level, until the electric kettle (3) reaches a high water level; If the normal water level of the water storage tank (108) becomes a low water level, the three-way solenoid valve II (109) is controlled to be closed and the water pump II (103) is kept open, so as to stop the water in the water storage tank (108) from being pumped into the electric kettle (3) and to introduce the cold water in the bucket into the electric kettle (3) until the electric kettle (3) reaches a high water level.

17. The warm boiled water dispenser according to claim 11, characterized in that: The control unit is also used for: When the water level in the water storage tank is at a high water level, the two-way solenoid valve (107) is controlled to open so as to discharge the water in the water storage tank (108) into the water bucket (101).

18. The warm boiled water dispenser according to claim 16, characterized in that: The control unit is also used for: When the warm boiled water function is triggered, and the water output from the hot water outlet of the heat exchanger reaches the set water output of the triggered warm boiled water, the hot water pump (106), water pump I (112) and three-way solenoid valve III (105) are controlled to be closed in sequence; When the fully automatic function is triggered and the water output from the hot water outlet of the heat exchanger reaches the set water output selected by the fully automatic function, the hot water pump (106), water pump I (112) and three-way solenoid valve III (105) are controlled to be closed in sequence.

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