Water drinking equipment

Abstract

The utility model belongs to the technical field of drinking water preparation, and discloses drinking water equipment. The water drinking equipment comprises a heating mechanism, a water outlet structure, a heat exchanger and a water drainage runner, wherein the heating mechanism comprises a heating inlet and a heating outlet; the heat exchanger comprises a first flow channel and a second flow channel which are matched with each other for heat exchange, the tail end of the first flow channel can be selectively communicated with at least one of the drainage flow channel and the heating inlet, and the heating outlet can be communicated with the head end of the second flow channel; and the water outlet structure can be communicated with the tail end of the second flow channel. The drinking water equipment can solve the problems that the requirement of a user cannot be met when the hot end and the cold end of the heat exchanger keep the same flow, and the heating efficiency and boiled water after heating are difficult to guarantee when the normal-temperature water flow of the cold end of the heat exchanger is large and exceeds the heating capacity.

Description

Technical Field

[0001] This utility model relates to the field of drinking water preparation technology, and in particular to a drinking water device. Background Technology

[0002] As users' demand for drinking water increases, existing water dispensers, in addition to providing boiled water and room temperature water, have added the function of preparing cooled boiled water to meet users' drinking needs.

[0003] In existing water dispensers, boiling water exchanges heat with room temperature water in a heat exchanger to lower the temperature of the boiling water and produce cooled boiled water. However, in summer or in areas with high ambient temperatures, the room temperature water entering the heat exchanger is relatively high, while the user's required cooled boiled water temperature is often lower. This causes the heat exchanger to maintain the same flow rate at both the hot and cold ends, which cannot meet the user's needs. On the other hand, when the flow rate of room temperature water at the cold end of the heat exchanger is relatively high, it exceeds the heating capacity, making it difficult to guarantee heating efficiency and ensure that the heated water is boiling, thus affecting the user experience. Utility Model Content

[0004] The purpose of this utility model is to provide a drinking water device that can provide cooled boiled water and solve the problem that the hot and cold ends of the heat exchanger cannot keep the same flow rate to meet the user's needs, while when the room temperature water flow rate at the cold end of the heat exchanger is large, it exceeds the heating capacity, making it difficult to guarantee heating efficiency and ensure that the heated water is boiling.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A drinking water device, comprising:

[0007] The heating mechanism includes a heating inlet and a heating outlet;

[0008] Drainage channel;

[0009] A heat exchanger comprising a first flow channel and a second flow channel that are configured for heat exchange, wherein the end of the first flow channel can selectively communicate with at least one of the drain flow channel and the heating inlet, and the heating outlet can communicate with the beginning of the second flow channel.

[0010] The water outlet structure is connected to the end of the second flow channel.

[0011] As an alternative to the above-mentioned drinking water equipment, the drinking water equipment further includes a valve assembly, which can switchably connect the end of the first flow channel to the drainage flow channel or the heating inlet.

[0012] As an optional solution for the above-mentioned drinking water equipment, the valve assembly includes a first switching valve, the first switching valve includes a switching valve inlet, a first switching outlet and a second switching outlet, the switching valve inlet is connected to the end of the first flow channel, the first switching outlet is connected to the heating inlet and the second switching outlet is connected to the drainage flow channel;

[0013] Alternatively, the valve assembly may include a first switching valve and a second switching valve, wherein the first switching valve connects the end of the first flow channel and the drain flow channel, and the second switching valve connects the end of the first flow channel and the heating inlet.

[0014] As an alternative to the above-mentioned drinking water equipment, the drinking water equipment further includes a valve assembly, which is used to divert water in the first flow channel to the drainage flow channel and the heating inlet, and the diversion ratio is adjustable.

[0015] As an optional solution for the above-mentioned drinking water equipment, the valve assembly includes a first regulating valve, which includes a main valve inlet, a first diversion port, and a second diversion port. The main valve inlet is connected to the end of the first flow channel, the first diversion port is connected to the heating inlet, and the second diversion port is connected to the drainage flow channel. The opening degree of the first diversion port and the second diversion port is adjustable.

[0016] Alternatively, the valve assembly includes a flow regulating valve, with the end of the first flow channel connected to the heating inlet and the drainage flow channel respectively, and the flow regulating valve disposed at the drainage flow channel or the heating inlet.

[0017] As an optional solution for the aforementioned drinking water equipment, the heating mechanism includes:

[0018] A water storage device for storing purified water, wherein the water storage device is provided with a heating inlet and a heating outlet;

[0019] A heating component is disposed within the water storage component.

[0020] As an optional solution for the aforementioned drinking water equipment, the heating mechanism includes:

[0021] A water storage device for storing purified water, wherein the water storage device is provided with the heating inlet;

[0022] A heating component is connected to the outlet end of the water storage component, and the outlet end of the heating component forms the heating outlet.

[0023] As an optional solution for the above-mentioned drinking water equipment, the heating outlet can be connected to the water storage component, so that the water storage component and the heating component form a circulating hot flow channel;

[0024] And / or, the heating component is an instant heating module;

[0025] And / or, the water storage component is provided with a drain outlet, and the drain outlet is connected to a drain valve;

[0026] And / or, a first water pump, a first flow meter, and / or a first temperature sensor, which are communicatively connected to the heating component, are provided between the heating component and the outlet end of the water storage component.

[0027] As an optional solution for the aforementioned drinking water equipment, the heating mechanism includes an instant heating module.

[0028] As an optional solution to the above-mentioned drinking water equipment, the drinking water equipment further includes:

[0029] The sterilization channel has its first end connected to the end of the second channel, and its end is connected to the heating mechanism or the first channel.

[0030] As an optional solution for the above-mentioned drinking water equipment, the drinking water equipment further includes a second switching valve, which can selectively connect the end of the second flow channel to the water outlet structure or the sterilization flow channel;

[0031] Alternatively, the end of the second flow channel is connected to the beginning of the sterilization flow channel and the water outlet structure, respectively. A third switch valve is provided on the sterilization flow channel, and a fourth switch valve is provided on the flow channel between the end of the second flow channel and the water outlet structure downstream of the beginning of the sterilization flow channel.

[0032] As an optional solution for the above-mentioned drinking water equipment, the heating outlet is connected to the water outlet structure to form a water outlet channel, and the first and last ends of the second channel are both connected to the water outlet channel.

[0033] As an optional solution for the above-mentioned drinking water equipment, the drinking water equipment further includes a second regulating valve, which includes a first manifold, a second manifold, and a valve main outlet. The first manifold is connected to the heating outlet, the second manifold is connected to the end of the second flow channel, and the valve main outlet is connected to the water outlet structure. The opening degree of the first manifold and the second manifold is adjustable.

[0034] As an alternative to the aforementioned drinking water equipment, a second temperature sensor is provided on the water outlet channel downstream of the second regulating valve, and the second temperature sensor is communicatively connected to the second regulating valve.

[0035] The beneficial effects of this utility model are:

[0036] In the drinking water device provided by this utility model, after the room temperature water in the first flow channel is reheated, it can be diverted to the drainage flow channel in part or completely. This ensures that the flow rate of water in the first flow channel is large enough to meet the needs of cooling boiled water. On the one hand, it ensures the temperature of the cooled boiled water. On the other hand, it avoids the mismatch between the large flow rate of room temperature water and the heating capacity after entering the heating component directly, thus avoiding the situation where the temperature of the heated water is insufficient. This ensures that the cooled boiled water is made by cooling boiled water, improving drinking hygiene and meeting the user's need for genuine cooled boiled water. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the first type of drinking water device provided in Embodiment 1 of this utility model;

[0038] Figure 2 This is a schematic diagram of the second type of drinking water device provided in Embodiment 1 of this utility model;

[0039] Figure 3 This is a schematic diagram of the third type of drinking water device provided in Embodiment 1 of this utility model;

[0040] Figure 4 This is a schematic diagram of the drinking water equipment provided in Embodiment 2 of this utility model;

[0041] Figure 5 This is a schematic diagram of the drinking water equipment provided in Embodiment 3 of this utility model.

[0042] In the picture:

[0043] 10. Filtration mechanism; 20. Heat exchanger; 21. First flow channel; 22. Second flow channel; 30. Water storage component; 40. Heating assembly; 41. Instant heating module; 51. First water pump; 52. Second water pump; 60. Water outlet structure; 71. First flow meter; 72. Second flow meter; 81. First temperature sensor; 82. Second temperature sensor; 91. Regulating valve; 92. Third switching valve; 93. Second switching valve; 94. Pressure reducing valve; 95. Seventh switching valve; 96. First switching valve; 110. Heating flow channel; 120. Water outlet flow channel; 130. Sterilization flow channel; 140. Exhaust flow channel; 150. Normal temperature water flow channel; 160. Drainage flow channel. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] Example 1

[0049] This embodiment provides a drinking water device capable of preparing cooled boiled water. For example... Figure 1 As shown, the drinking water equipment includes a heating mechanism, a heat exchanger 20, and a water outlet structure 60. The heating mechanism includes a heating inlet and a heating outlet. Water enters the heating mechanism through the heating inlet and flows out through the heating outlet after being heated. The heat exchanger 20 includes a first flow channel 21 and a second flow channel 22 that cooperate in heat exchange. The first end of the first flow channel 21 is used to introduce purified water, and the end of the first flow channel 21 is connected to the heating inlet. The first end of the second flow channel 22 can be connected to the heating outlet, and the end of the second flow channel 22 is connected to the water outlet structure 60.

[0050] When the drinking water equipment prepares cooled boiled water, purified water first enters the first flow channel 21 of the heat exchanger 20, serving as the cold-end heat exchange medium and providing cooling. The water flowing out of the first flow channel 21 enters the heating mechanism and is heated to boiling water. The boiling water then enters the second flow channel 22, serving as the hot-end heat exchange medium of the heat exchanger 20. Through heat exchange between the first flow channel 21 and the second flow channel 22, the boiling water in the second flow channel 22 is cooled down to a temperature that meets the user's needs, thus providing cooled boiled water to the user through the water outlet structure 60. The room-temperature purified water in the first flow channel 21 absorbs heat and becomes warmer. The heated purified water then enters the heating mechanism for further heating, which avoids heat waste, reduces the heating power of the heating mechanism, and prevents energy waste.

[0051] In this embodiment, boiled water is cooled to prepare cooled boiled water, so that the cooled boiled water consumed by the user is formed by cooling boiled water, ensuring drinking hygiene and providing the user with truly cooled boiled water.

[0052] In summer or in areas with high ambient temperatures, the ambient water entering the heat exchanger is at a higher temperature, while the user's required cooled boiled water is often at a lower temperature. This causes the heat exchanger to maintain the same flow rate at both the hot and cold ends, which cannot meet the user's needs. On the other hand, when the ambient water flow rate at the cold end of the heat exchanger is large, it exceeds the heating capacity, making it difficult to guarantee heating efficiency and ensure that the heated water is boiling, thus affecting the user's experience.

[0053] To address the aforementioned issues, the drinking water equipment also includes a drain channel 160, and the end of the first channel 21 can selectively connect to at least one of the drain channel 160 and the heating inlet. This arrangement ensures that there is a sufficient flow of room-temperature water in the first channel 21 to cool the boiling water, and also controls the water flow to the heating mechanism to prevent the water flow from exceeding the heating capacity of the heating mechanism, thereby preventing excessive heating time or water from not boiling after heating, and ensuring the smooth preparation of cooled boiled water.

[0054] In addition, the drainage channel 160 can also drain the water remaining in the first channel 21 when the drinking water equipment is not working, so as to avoid bacteria growing due to the long-term retention of some water in the first channel 21 and ensure drinking hygiene.

[0055] In some embodiments, the end of the drain channel 160 can be switched to be connected to either the drain channel 160 or the heating inlet. When preparing cooled boiled water, the water stored in the heating mechanism supplies boiling water to the second channel 22. The room temperature water in the first channel 21, after exchanging heat with the boiling water, is directly discharged through the drain channel 160, avoiding excessive water flow into the heating mechanism, which would affect the heating efficiency and the hot water temperature.

[0056] Specifically, the drinking water equipment includes a valve assembly for switching the end of the first flow channel 21 to communicate with the drain flow channel 160 or with the heating inlet. In some embodiments, the valve assembly includes a first switching valve 96, which is connected to the end of the first flow channel 21, the heating inlet, and the beginning of the drain flow channel 160, respectively. The first switching valve 96 is capable of switching the end of the first flow channel 21 to communicate with either the drain flow channel 160 or the heating inlet.

[0057] When the first switching valve 96 connects the end of the first flow channel 21 to the drain flow channel 160, the water that has undergone heat exchange through the first flow channel 21 can be discharged through the drain flow channel 160 to avoid entering the heating mechanism; when the first switching valve 96 connects the end of the first flow channel 21 to the heating inlet, the water that has undergone heat exchange through the first flow channel 21 enters the heating mechanism to replenish the heating mechanism and meet the user's needs.

[0058] Optionally, the first switching valve 96 can be a three-way solenoid valve with one inlet and two outlets to achieve automatic switching of the flow channel.

[0059] In other embodiments, the first switching valve 96 can be replaced by two switching valves. Exemplarily, the valve assembly includes a first switching valve and a second switching valve, the first switching valve connecting the end of the first flow channel 21 and the drain flow channel 160, and the second switching valve connecting the end of the first flow channel 21 and the heating inlet, the first switching valve and the second switching valve being independently controllable for opening and closing.

[0060] Optionally, both the first and second switching valves can be electromagnetic switching valves to achieve automatic switching of the flow path.

[0061] It is understandable that the heating mechanism has a certain water storage capacity. The valve assembly can connect the first flow channel 21 to the heating inlet when the water level in the heating mechanism drops to the set minimum water level and does not reach the set maximum water level. After the water level in the heating mechanism reaches the set maximum water level, the first flow channel 21 is connected to the drainage flow channel 160 to ensure that there is enough water in the heating mechanism to prepare cooled boiled water and to prevent the water in the heating mechanism from overflowing.

[0062] In some embodiments, a liquid level detection component is provided in the heating mechanism. The liquid level detection component is used to detect the water level in the heating mechanism and is electrically connected to the valve assembly, so as to control the state of the valve assembly by detecting the water level.

[0063] For example, the drinking water equipment includes a controller, and a level detection component is electrically connected to a valve assembly via the controller. When the level detection component detects that the water level in the heating mechanism has dropped to a set minimum water level, the level detection component sends an electrical signal to the controller. Upon receiving the electrical signal, the controller controls the valve assembly to switch, so that the end of the first flow channel 21 is connected to the heating inlet. When the level detection component detects that the water level in the heating mechanism has risen to a set maximum water level, the level detection component sends an electrical signal to the controller. Upon receiving the electrical signal, the controller controls the valve assembly to switch, so that the end of the first flow channel 21 is connected to the drain channel 160.

[0064] Optionally, the controller can be a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program to control the valve assembly based on the detected water level.

[0065] It should be noted that the liquid level detection component and the controller are both existing technologies in the field, and the connection circuit between the liquid level detection component, the control component and the valve is also existing technology in the field, and will not be described in this embodiment.

[0066] In some embodiments, the valve assembly connects the end of the first flow channel 21 to the heating inlet and the drain flow channel 160, respectively. The valve assembly is used to divert water in the first flow channel 21 to the drain flow channel 160 and the heating inlet, and the diversion ratio is adjustable. To ensure that the temperature of the cooled boiled water meets the user's needs, the flow rate in the first flow channel 21 can be increased, with some water flowing into the heating mechanism for heating and use, and the remaining water being discharged through the drain flow channel 160.

[0067] In other words, the valve assembly directs a portion of the water in the first flow channel 21 into the heating inlet and another portion into the drainage flow channel 160. The ratio of the flow rate of the water entering the heating inlet to the flow rate of the water entering the drainage flow channel 160 is adjustable. This ensures that the water flowing into the heating mechanism matches the heating capacity and water storage capacity of the heating mechanism while maintaining a large flow of room temperature water in the first flow channel 21, thus avoiding affecting the hot water temperature and preventing water overflow from the heating mechanism.

[0068] Optionally, the valve assembly includes a first regulating valve, which includes a main valve inlet, a first branch port, and a second branch port. The main valve inlet is connected to the end of the first flow channel 21, the first branch port is connected to the heating inlet, and the second branch port is connected to the drainage flow channel 160. The opening degree of the first branch port and the second branch port is adjustable.

[0069] Optionally, the first regulating valve can be a one-inlet, two-outlet flow regulating valve, wherein the openings of the first and second branch ports are inversely proportional. When the opening of the first branch port is adjusted to the maximum, the opening of the second branch port is at its minimum (e.g., closed); when the opening of the first branch port is adjusted to the minimum (e.g., closed), the opening of the second branch port is at its maximum.

[0070] It should be noted that the one-inlet-two-outlet flow regulating valve is an existing structure in this field. The structure and regulating principle of the one-inlet-two-outlet flow regulating valve can adopt any structure and principle in the existing technology, which will not be elaborated here.

[0071] In other embodiments, the first regulating valve can also be replaced by a flow regulating valve. Specifically, the end of the first flow channel 21 is connected to the heating inlet and the drainage flow channel 160, respectively. A flow regulating valve is provided on the drainage flow channel 160 or at the heating inlet. The flow regulating valve is a one-inlet-one-outlet regulating valve, which can regulate the flow rate at the outlet. Adjusting the flow rate at a single branch point by using a flow regulating valve can achieve the same effect.

[0072] It should be noted that the single-inlet-single-outlet regulating valve is an existing structure in this field. The structure and regulating principle of the single-inlet-single-outlet regulating valve can adopt any existing structure and principle, which will not be elaborated here.

[0073] In some embodiments, the heating mechanism includes a water storage component 30 and a heating component 40. The water storage component 30 has a heating inlet and is capable of storing purified water. The heating component 40 is connected to the outlet end of the water storage component 30, forming a heating outlet that connects to the water outlet structure 60. The purified water in the water storage component 30 can enter the heating component 40 to be heated into boiling water, which can then enter the water outlet structure 60 for user use. The cooperation between the water storage component 30 and the heating component 40 increases the hot water output.

[0074] In some embodiments, the heating component 40 can be an instant heating module. Exemplarily, the heating component 40 is a thick-film heating element, which can convert electrical energy into heat energy, has a large heating area, and can improve heating efficiency. Thick-film heating elements are existing structures in the art and will not be described in detail here.

[0075] To meet users' needs for hot water, the heating outlet can be connected to the water outlet structure 60 to form a water outlet channel 120. Boiled water heated by the heating mechanism can flow through the water outlet channel 120 to the water outlet structure 60 for user use. Correspondingly, both the beginning and end of the second channel 22 can be connected to the water outlet channel 120. The boiled water in the heating mechanism is divided through the water outlet channel 120; a portion of the boiled water flows to the water outlet structure 60, while the other portion flows back to the water outlet structure 60 through the heat exchange cooling port of the second channel 22. This allows the boiled water to mix with the cooled boiled water, providing a wider range of boiled water at a higher temperature.

[0076] To meet users' temperature requirements for water intake, a second regulating valve 91 is installed on the water outlet channel 120. The second regulating valve 91 includes a first manifold, a second manifold, and a main valve outlet. The first manifold is connected to the heating outlet, the second manifold is connected to the end of the second channel 22, and the main valve outlet is connected to the water outlet structure 60. The opening degrees of the first and second manifolds are adjustable. By setting the second regulating valve 91, the flow rate of hot water flowing from the heating outlet into the second regulating valve 91 and the flow rate of hot water diverted into the second channel 22 can be adjusted, thereby regulating the flow rate of cooled boiled water entering the second regulating valve 91. By adjusting the ratio of the mixed hot water and cooled boiled water, the water temperature entering the water outlet structure 60 can be controlled, thus meeting the user's need for cooled boiled water at different temperatures.

[0077] Understandably, the openings of the first and second manifolds are inversely proportional; as the opening of the first manifold increases, the opening of the second manifold decreases accordingly. When the opening of the first manifold increases, the proportion of boiling water flowing directly from the heating outlet into the first manifold increases, while the proportion diverted into the second channel 22 decreases. This reduces the flow rate of cooled boiled water passing through the second channel 22, consequently reducing the flow rate of cooled boiled water entering the second manifold. At this time, due to the high proportion of boiling water and the low proportion of cooled boiled water, the temperature of the mixed cooled boiled water is relatively high. Conversely, when the opening of the first manifold decreases, the proportion of boiling water flowing directly from the heating outlet into the first manifold decreases, while the proportion diverted into the second channel 22 increases. This increases the flow rate of cooled boiled water passing through the second channel 22, consequently increasing the flow rate of cooled boiled water entering the second manifold. At this time, due to the low proportion of boiling water and the high proportion of cooled boiled water, the temperature of the mixed cooled boiled water is relatively low.

[0078] It should be noted that the second regulating valve 91 is an existing structure in the art. The structure and regulating principle of the second regulating valve 91 can adopt any structure and principle in the prior art, which will not be elaborated here.

[0079] When a user needs hot water, the second regulating valve 91 adjusts the opening of the first manifold to the maximum, and correspondingly, the second manifold closes, so that all the hot water flowing out of the heating outlet passes through the first manifold, flows through the water outlet channel 120 to the water outlet structure 60, and realizes the supply of hot water.

[0080] To accurately control the outlet water temperature, in some embodiments, a second temperature sensor 82 is installed on the outlet flow channel 120 downstream of the second regulating valve 91. The second temperature sensor 82 is communicatively connected to the second regulating valve 91. The second temperature sensor 82 can detect the water temperature flowing out of the valve's main outlet. By comparing the detected water temperature with the target temperature set by the user, it can provide feedback to adjust the opening degree of the first and second manifolds in the second regulating valve 91, thereby adjusting the mixing ratio of boiling water and cooled boiled water, and thus accurately controlling the outlet water temperature.

[0081] Optionally, the second regulating valve 91 and the second temperature sensor 82 are both electrically connected to the controller. The temperature information detected by the second temperature sensor 82 is transmitted to the controller, and the controller adjusts the opening of the second regulating valve 91 according to the received temperature information to accurately control the outlet water temperature.

[0082] To improve the heating speed of the instant heating module 41, the heating outlet can be connected to the water storage component 30 to form a circulating heating channel. The water in the water storage component 30 can circulate and be heated in the circulating heating channel. The heated hot water is stored in the water storage component 30. When it is necessary to prepare cooled boiled water or boiled water, the water in the water storage component 30 enters the instant heating module 41 and can be quickly heated into hot water, shortening the water output time.

[0083] To ensure that the heating outlet can communicate with the water outlet channel 120, in some embodiments, the drinking water device further includes a third switching valve 92. The third switching valve 92 is connected to the heating outlet, the water storage unit 30, and the water outlet channel 120 respectively. The third switching valve 92 can selectively connect the heating outlet to either the water storage unit 30 or the water outlet channel 120. When the heating outlet is connected to the water storage unit 30, the hot water flowing out of the heating outlet flows in the circulating heating channel 110; when the heating outlet is connected to the water outlet channel 120, the water flowing out of the heating outlet will flow through the water outlet channel 120 to the heat exchanger 20 and the second regulating valve 91.

[0084] Optionally, the third switching valve 92 can be a solenoid valve, which is electrically connected to the controller so that the controller can switch the flow direction of the hot water from the heating outlet according to the working status of the water drinking equipment.

[0085] In some embodiments, the third switching valve 92 can be replaced by two switching valves. Exemplarily, the heating outlet is connected to the water storage unit 30 via a fifth switching valve, and the heating outlet is connected to the water outlet channel 120 via a sixth switching valve.

[0086] In some embodiments, such as Figure 2 As shown, the heating outlet is not connected to the water storage unit 30. The water heated by the heating component 40 enters the water outlet channel 120. The water is then divided through the water outlet channel 120, with one part entering the second channel 22 and the other part entering the second regulating valve 91.

[0087] To ensure that the hot water flowing from the heating outlet is boiling water, in some embodiments, the outlet end of the water storage component 30 is connected to the heating component 40, so that the water storage component 30 and the heating component 40 form a heating flow channel 110. A first water pump 51, a first flow meter 71, and / or a first temperature sensor 81, which are communicatively connected to the heating component 40, are installed on the heating flow channel 110. The first water pump 51, the first flow meter 71, and / or the first temperature sensor 81 are located between the water storage component 30 and the heating component 40. The heating component 40 can adjust its power according to the temperature and flow rate of the water entering it, so as to avoid energy waste while ensuring that the water is heated to boiling water.

[0088] Optionally, the heating assembly 40 can be communicatively connected to the first water pump 51, the first flow meter 71, or the first temperature sensor 81 via a controller.

[0089] In some embodiments, the water storage component 30 is provided with an exhaust port, which is connected to an exhaust channel 140. By providing the exhaust port and the exhaust channel 140, the steam inside the water storage component 30 can be discharged to ensure stable air pressure inside the water storage component 30.

[0090] To ensure drinking water hygiene, in some embodiments, the drinking water device further includes a sterilization channel 130. The first end of the sterilization channel 130 can be connected to the water outlet channel 120, and the last end of the sterilization channel 130 can be connected to the heating mechanism or the first channel 21. When sterilizing the drinking water device, the water in the water storage unit 30 enters the heating component 40 through the heating channel 110 for heating. The heated water then flows back to the heating mechanism or the first channel 21 through the second channel 22, the water outlet channel 120, and the sterilization channel 130 in sequence, so as to sterilize the areas it passes through. This cycle ensures the hygiene of the drinking water device and improves drinking safety.

[0091] In this embodiment, sterilization is performed using boiling water, eliminating the need for an additional sterilization module, which simplifies the structure and reduces costs.

[0092] It should be noted that the heating channel 110, the water outlet channel 120 and the sterilization channel 130 can be formed by pipes or other structures, as long as the above-mentioned interconnection state can be achieved, and there are no restrictions here.

[0093] For example, such as Figure 1As shown, the end of the sterilization channel 130 is connected to the circulating heating channel between the heating outlet and the water storage unit 30, so as to be able to sterilize and disinfect at least a portion of the circulating heating channel.

[0094] For example, such as Figure 2 As shown, the end of the sterilization channel 130 is connected to the water storage component 30.

[0095] For example, such as Figure 3 As shown, the end of the sterilization channel 130 is connected to the first channel 21, specifically to the beginning of the first channel 21, so as to sterilize and disinfect the first channel 21. In addition, the boiling water in the sterilization channel 130 can also push the room temperature water remaining in the first channel 21 into the heating mechanism for heating, thus preventing the growth of bacteria from the long-term presence of room temperature water in the first channel 21.

[0096] In some embodiments, in order to drain the water used in the sterilization process to prevent users from drinking it, the water storage unit 30 is provided with a drain outlet, which can be connected to the outside of the drinking water equipment through a pipe to drain the water used for sterilization.

[0097] To facilitate control of the opening and closing of the drain outlet, a drain valve is connected to the drain outlet. When the drain valve is open, the water storage component 30 drains water outward, and when the drain valve is closed, the water storage component 30 stores water.

[0098] In some embodiments, a second switching valve 93 is provided on the water outlet channel 120. The second switching valve 93 can selectively connect the water outlet channel 120 to the water outlet structure 60 or the sterilization channel 130. When sterilization of the drinking water equipment is required, the second switching valve 93 connects the water outlet channel 120 to the sterilization channel 130. At this time, the water outlet channel 120 is not connected to the water outlet structure 60, and the water in the water outlet channel 120 enters the sterilization channel 130 to achieve circulating sterilization of boiling water. When the user needs to take water, the water outlet channel 120 is connected to the water outlet structure 60. At this time, the water outlet channel 120 is not connected to the sterilization channel 130 to ensure that the water in the water outlet channel 120 flows to the water outlet structure 60.

[0099] Specifically, the second switching valve 93 includes a first valve port, a second valve port, and a third valve port. The first valve port is connected to the water outlet channel 120, the second valve port is connected to the sterilization channel 130, and the third valve port is connected to the water outlet structure 60. The first valve port in the second switching valve 93 can switch between being connected to the second valve port and being connected to the third valve port.

[0100] Optionally, the second switching valve 93 can be a solenoid valve to facilitate automatic switching of the connection state.

[0101] In some embodiments, the second switching valve 93 can be replaced by two switching valves. Exemplarily, the first end of the sterilization channel 130 is connected to the outlet channel 120, and a third switching valve is provided on the sterilization channel 130 to control the opening and closing of the sterilization channel 130; a fourth switching valve is provided on the outlet channel 120 downstream of the first end of the sterilization channel 130 to control the opening and closing of the outlet channel 120 and the outlet structure 60.

[0102] like Figures 1-3 As shown, the second regulating valve 91 is located on the outlet channel 120 and downstream of the first end of the second channel 22, and upstream of the second switching valve 93. When the opening of the first manifold is increased, the flow rate of the open water diverted from the outlet channel 120 to the first end of the second channel 22 decreases accordingly, and the flow rate in the second channel 22 decreases to correspond with the opening of the second manifold.

[0103] It is worth noting that the connection relationship, specific structure, and specific control method of the controller with other components are all conventional methods in the field. This utility model can adopt any of the connection relationship, specific structure, and specific control method of the controller with other components in the prior art. This utility model will not provide a detailed description of the connection relationship, specific structure, and specific control method of the controller with other components.

[0104] In some embodiments, the second regulating valve 91 and the second switching valve 93 can be replaced by a four-way valve, which can also achieve the above functions.

[0105] In some embodiments, such as Figures 1-3 As shown, the drinking water equipment also includes a filtration mechanism 10, which is used to filter the incoming water. The outlet of the filtration mechanism 10 can be connected to the first flow channel 21 to introduce clean water into the first flow channel 21.

[0106] In some embodiments, the filtration mechanism 10 includes at least one filter element, which can achieve at least one stage of filtration to ensure the filtration effect on water and improve drinking water safety. The filtration mechanism 10 and the filter element are existing structures in the art and will not be described in detail here.

[0107] To facilitate control over the start and stop of water injection into the first flow channel 21, a second water pump 52 and a pressure reducing valve 94 are installed between the filter mechanism 10 and the beginning of the first flow channel 21. The second water pump 52 provides power for the water flow. The pressure reducing valve 94 is located upstream of the second water pump 52. Also known as a zero-pressure valve, the zero-pressure valve opens when a low pressure is generated downstream; the lower the pressure, the greater the flow rate. In other words, when the second water pump 52 starts, it generates a negative pressure downstream, which causes the pressure reducing valve 94 to open, allowing the filter mechanism 10 to supply water to the heat exchanger 20. When the second water pump 52 stops, it does not drive water flow, the negative pressure is eliminated, and the pressure reducing valve 94 closes. By cooperating with the second water pump 52, the pressure reducing valve 94 automatically opens and closes according to the start and stop of the second water pump 52, eliminating the need for additional control of the pressure reducing valve 94, thus simplifying the control procedure and reducing costs.

[0108] In some embodiments, a second flow meter 72 may be provided between the first end of the first flow channel 21 and the second water pump 52. The second flow meter 72 is used to detect the flow rate. The second flow meter 72 and the second water pump 52 can be connected to the controller for communication to adjust the power of the second water pump 52 according to the detected flow rate.

[0109] To provide room temperature water, the outlet of the filter mechanism 10 is also connected to a room temperature water channel 150, which is connected to the water outlet structure 60 to provide room temperature water to users.

[0110] Optionally, a seventh switch valve 95 is provided on the ambient temperature water flow channel 150, which can control the opening and closing of the ambient temperature water flow channel 150.

[0111] In some embodiments, a third temperature sensor is provided upstream of the second water pump 52, and the third temperature sensor is communicatively connected to the second water pump 52. As the temperature of the water entering the filter mechanism 10 changes, the purified water flow rate of the filter mechanism 10 varies, and therefore the flow rate pumped by the second water pump 52 at the same voltage varies. However, the water temperature in the water storage container 30 drawn by the first water pump 51 is constant. Through the communication connection between the third temperature sensor and the second water pump 52, the voltage of the second water pump 52 can be adjusted according to the detected water temperature, so that the water flow rate pumped by the second water pump 52 meets the requirements and avoids insufficient water or overflow in the water storage container 30.

[0112] Optionally, the third temperature sensor can be connected to the second water pump 52 via a controller.

[0113] Example 2

[0114] This embodiment provides a drinking water device, which has a structure that is largely the same as that in Embodiment 1, except for the specific structure of the heating mechanism.

[0115] like Figure 4 As shown, in this embodiment, the heating component 40 is disposed inside the water storage component 30, that is, the heating mechanism is a heat storage type, the heating component 40 directly heats the water in the water storage component 30, and both the heating inlet and the heating outlet are disposed in the water storage component 30.

[0116] In this embodiment, the valve assembly can switch the end of the first flow channel 21 to communicate with the drainage flow channel 160 or the heating inlet; alternatively, the valve assembly can divert water in the first flow channel 21, with a portion entering the drainage flow channel 160 and the other portion entering the water storage device 30. The specific structure of the valve assembly can be found in Embodiment 1, and will not be repeated in this embodiment.

[0117] Example 3

[0118] This embodiment provides a drinking water device, which has a structure that is largely the same as that in Embodiment 1, except for the specific structure of the heating mechanism and the structure of the valve assembly.

[0119] like Figure 5 As shown, the heating mechanism in this embodiment is an instant heating type. Specifically, the heating mechanism includes an instant heating module 41, with both a heating inlet and a heating outlet located in the instant heating module 41. At this time, the end of the first flow channel 21 is simultaneously connected to both the heating inlet and the drainage flow channel 160, so that water can be supplied to the instant heating module 41 for heating, and excess water can be discharged through the drainage flow channel 160.

[0120] Specifically, the valve assembly is used to divert the water in the first flow channel 21, with a portion entering the drain flow channel 160 and the other portion entering the instant heating module 41, to ensure that the instant heating module 41 can prepare boiling water. The specific structure of the valve assembly can be referred to in Embodiment 1, and will not be repeated in this embodiment.

[0121] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A drinking water device, characterized in that, include: The heating mechanism includes a heating inlet and a heating outlet; Drainage channel (160); The heat exchanger (20) includes a first flow channel (21) and a second flow channel (22) that are heat exchanged together. The end of the first flow channel (21) can be selectively connected to at least one of the drain flow channel (160) and the heating inlet, and the heating outlet can be connected to the beginning of the second flow channel (22). The water outlet structure (60) is connected to the end of the second flow channel (22).

2. The drinking water equipment according to claim 1, characterized in that, The drinking water equipment also includes a valve assembly that can switchably connect the end of the first flow channel (21) to the drain flow channel (160) or the heating inlet.

3. The drinking water equipment according to claim 2, characterized in that, The valve assembly includes a first switching valve (96), which includes a switching valve inlet, a first switching outlet, and a second switching outlet. The switching valve inlet is connected to the end of the first flow channel (21), the first switching outlet is connected to the heating inlet, and the second switching outlet is connected to the drainage flow channel (160). Alternatively, the valve assembly may include a first switching valve and a second switching valve, wherein the first switching valve connects the end of the first flow channel (21) and the drain flow channel (160), and the second switching valve connects the end of the first flow channel (21) and the heating inlet.

4. The drinking water equipment according to claim 1, characterized in that, The drinking water equipment also includes a valve assembly for diverting water in the first flow channel (21) to the drain flow channel (160) and the heating inlet, and the diversion ratio is adjustable.

5. The drinking water equipment according to claim 4, characterized in that, The valve assembly includes a first regulating valve, which includes a main valve inlet, a first branch port, and a second branch port. The main valve inlet is connected to the end of the first flow channel (21), the first branch port is connected to the heating inlet, and the second branch port is connected to the drainage flow channel (160). The opening degree of the first branch port and the second branch port is adjustable. Alternatively, the valve assembly may include a flow regulating valve, wherein the end of the first flow channel (21) is connected to the heating inlet and the drainage flow channel (160) respectively, and the flow regulating valve is disposed at the drainage flow channel (160) or the heating inlet.

6. The drinking water equipment according to any one of claims 1-5, characterized in that, The heating mechanism includes: A water storage component (30) is used to store purified water, and the water storage component (30) is provided with the heating inlet and the heating outlet; A heating component is disposed within the water storage component (30).

7. The drinking water equipment according to any one of claims 1-5, characterized in that, The heating mechanism includes: A water storage component (30) is used to store purified water, and the water storage component (30) is provided with the heating inlet; A heating component is connected to the outlet end of the water storage component (30), and the outlet end of the heating component forms the heating outlet.

8. The drinking water equipment according to claim 7, characterized in that, The heating outlet can be connected to the water storage component (30) so that the water storage component (30) and the heating component form a circulating hot flow channel; And / or, the heating component is an instant heating module (41); And / or, the water storage component (30) is provided with a drain outlet, and the drain outlet is connected to a drain valve; And / or, a first water pump (51), a first flow meter (71) and / or a first temperature sensor (81) are provided between the heating component and the outlet end of the water storage component (30), which are communicatively connected to the heating component.

9. The drinking water equipment according to claim 1, 4, or 5, characterized in that, The heating mechanism includes an instant heating module (41).

10. The drinking water equipment according to any one of claims 1-5, characterized in that, The drinking water equipment also includes: The sterilization channel (130) has its first end connected to the end of the second channel (22), and the end of the sterilization channel (130) is connected to the heating mechanism or the first channel (21).

11. The drinking water equipment according to claim 10, characterized in that, The drinking water equipment also includes a second switching valve (93), which can selectively connect the end of the second flow channel (22) to the water outlet structure (60) or the sterilization flow channel (130); Alternatively, the end of the second flow channel (22) is connected to the beginning of the sterilization flow channel (130) and the water outlet structure (60) respectively. A third switch valve is provided on the sterilization flow channel (130), and a fourth switch valve is provided on the flow channel between the end of the second flow channel (22) and the water outlet structure (60) downstream of the beginning of the sterilization flow channel (130).

12. The drinking water equipment according to any one of claims 1-5, characterized in that, The heating outlet is connected to the water outlet structure (60) to form a water outlet channel (120), and the first and last ends of the second channel (22) are connected to the water outlet channel (120).

13. The drinking water equipment according to claim 12, characterized in that, The drinking water equipment also includes a second regulating valve (91), which includes a first manifold, a second manifold and a valve main outlet. The first manifold is connected to the heating outlet, the second manifold is connected to the end of the second flow channel (22), and the valve main outlet is connected to the water outlet structure (60). The opening degree of the first manifold and the second manifold is adjustable.

14. The drinking water equipment according to claim 13, characterized in that, A second temperature sensor (82) is provided on the water outlet channel (120) downstream of the second regulating valve (91), and the second temperature sensor (82) is communicatively connected to the second regulating valve (91).

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