Flowing precise temperature-adjusting water dispenser

Abstract

The present application relates to drinking water equipment technical field, specifically disclose a kind of flow type precision temperature regulating water dispenser with low energy consumption, can quickly water and can disinfect pipeline, including control system, heating assembly, heat exchange assembly, water tank, refrigeration system and temperature regulating mixing valve, heating assembly is electrically connected with control system and normal temperature water is heated to provide boiled water;Heat exchange assembly includes independently arranged boiled water waterway, normal temperature water path and cold medium pipeline, boiled water waterway sequentially with normal temperature water path and cold medium pipeline heat exchange;Boiled water waterway input end is communicated with heating assembly output end;Boiled water waterway output end outputs boiled water, cool boiled water, ice boiled water and preset temperature's warm boiled water;Normal temperature water path output end is communicated with heating assembly input end;Water tank is communicated with the input end of normal temperature water path;Refrigeration system is electrically connected with control system and respectively communicated cold medium pipeline input end and output end;Temperature regulating mixing valve is arranged on the output pipeline of boiled water waterway and is communicated with the output end of heating assembly and water tank.

Description

Technical Field

[0001] This invention relates to the field of drinking water equipment technology, and in particular to a flow-type precision temperature-controlled water dispenser. Background Technology

[0002] Water dispensers on the market are mainly used to provide users with hot water, or simultaneously hot and cold water. Dispensers with both hot and cold water output functions often have heating and cooling tanks installed. The heating tank heats the purified water, or the cooling tank cools it. These dispensers usually have two independent taps, making it difficult to output lukewarm water between hot and cold water, thus failing to achieve temperature adjustment. Secondly, in order to provide hot or cold water at any time, traditional water dispensers automatically activate the heating or cooling tank when the water temperature deviates from the preset temperature during standby mode. This results in high power consumption in standby mode, which is not environmentally friendly or energy-efficient. Furthermore, the hot and cold water circuits of the water dispenser are completely independent. The water circuit that outputs ice water for a long time is prone to bacterial growth, and the water circuit disinfection is relatively difficult, posing a potential threat to the user's drinking water safety. In addition, traditional water dispensers have low heating efficiency. When the equipment is used frequently, it cannot continuously output hot or cold water. When the water level in the heating or ice tank drops to a low level, it will automatically replenish with room temperature water. The heating tank will heat the mixed water inside to a boil, which takes a while and affects the user's drinking water experience. Moreover, the frequent heating of the water in the tank increases the operating cost of the water dispenser. Summary of the Invention

[0003] Therefore, it is necessary to address the technical problems of non-adjustable drinking water temperature, high energy consumption, inability to dispense water in a timely manner, difficulty in disinfection, and potential safety hazards by providing a low-energy, fast-dispensing, and pipeline-disinfecting flow-type precision temperature-controlled water dispenser.

[0004] A mobile, precision-temperature-controlled water dispenser includes:

[0005] Control system;

[0006] A heating element, which is electrically connected to a control system, is used to heat room temperature water to provide boiling water;

[0007] A heat exchange assembly includes independently configured boiling water path, ambient temperature water path, and cold medium path. The boiling water path sequentially exchanges heat with the ambient temperature water path and the cold medium path. The input end of the boiling water path is connected to the output end of the heating element. The output end of the boiling water path is used to output boiling water, cooled boiled water, ice boiled water, and warm water at a preset temperature. The output end of the ambient temperature water path is connected to the input end of the heating element.

[0008] A water tank, which is connected to the input end of a room temperature water circuit;

[0009] A refrigeration system, electrically connected to the control system, and respectively connected to the input and output ends of the cold medium piping; and

[0010] A temperature-adjusting mixing valve is installed on the output pipe of the hot water circuit, and the temperature-adjusting mixing valve is also connected to the output end of the heating element and the water tank.

[0011] In one embodiment, the flow-type precision temperature-controlled water dispenser also includes an RO reverse osmosis filtration system installed on the connection pipeline between the water tank and the ambient temperature water circuit, and the RO reverse osmosis filtration system is connected to the control system.

[0012] In one embodiment, the refrigeration system is a miniature refrigeration system for supplying a refrigerant to a cold medium pipeline.

[0013] In one embodiment, the flow-type precision temperature-controlled water dispenser further includes an ice water tank disposed between the cold medium pipeline and the micro-refrigeration system, and a water pump that pumps the ice water in the ice water tank into the cold medium pipeline. The micro-refrigeration system is provided with a condenser pipeline that is inserted into the ice water tank and exchanges heat with the water in the ice water tank.

[0014] In one embodiment, the refrigeration system includes an air compressor electrically connected to the control system and a vortex tube connected to the output end of the air compressor, wherein the cold air discharge pipe of the vortex tube is used to provide a refrigerant to the cold medium pipeline.

[0015] In one embodiment, a compressed air storage tank is provided between the air pump and the vortex tube.

[0016] In one embodiment, the flow-type precision temperature-controlled water dispenser also includes a temperature sensor disposed between the hot water outlet and the temperature-controlled mixing valve, the temperature sensor being electrically connected to the control system.

[0017] In one embodiment, the heat exchange assembly includes a first heat exchanger and a second heat exchanger connected in series with the first heat exchanger. The first heat exchanger has a hot water path and a room temperature water path. The second heat exchanger has two hot water paths and a cold medium pipeline. The output end of the first hot water path is connected to the input end of the second hot water path. The output end of the second hot water path is connected to a temperature-regulating mixing valve. The first hot water path and the second hot water path together constitute the hot water path.

[0018] In one embodiment, the heat exchange assembly includes a first pressure plate, a second pressure plate, and a third pressure plate spaced apart. A first water passage is formed between the first and second pressure plates, and a second water passage is formed between the second and third pressure plates. The ambient temperature water passage is located within the first water passage, and the cold medium pipe is located within the second water passage. The hot water passage extends from the first water passage to the second water passage, including a first hot water passage located in the first water passage and a second hot water passage located in the second water passage and connected to the first hot water passage. The first water passage is provided with a first water passage plate group for forming a separated ambient temperature water passage and the first hot water passage for heat exchange, and the second water passage is provided with a second water passage plate group for forming a separated cold medium pipe and the second hot water passage for heat exchange.

[0019] The first pressure plate has a room temperature water inlet at its bottom and a room temperature water outlet and a hot water inlet side by side at its top. The third pressure plate has a refrigerant inlet and a drinking water outlet side by side at its top and a refrigerant outlet at its bottom. The second pressure plate has a water passage hole at its bottom, which connects the first water passage area and the second water passage area. The two ends of the room temperature water passage are connected to the room temperature water inlet and the room temperature water outlet, respectively. The two ends of the first hot water passage are connected to the hot water inlet and the water passage hole, respectively. The two ends of the refrigerant pipe are connected to the refrigerant inlet and the refrigerant outlet, respectively. The two ends of the second hot water passage are connected to the water passage hole and the drinking water outlet, respectively.

[0020] In one embodiment, the first water-passing plate group includes a plurality of room temperature water plates and boiling water plates that are alternately stacked and separated by metal partitions; the second water-passing plate group includes a plurality of medium plates and cold water plates that are alternately stacked and separated by metal partitions; the room temperature water plates, boiling water plates, medium plates and cold water plates are respectively provided with perforations to form water channels for providing water passages.

[0021] The flow-type precision temperature-controlled water dispenser of this invention features spaced, heat-exchangeable hot water channels, ambient temperature water channels, and a cooling medium pipeline. Water heated by the heating element enters the hot water channel and cools down during heat exchange with the ambient temperature water channel to obtain cooled boiled water. When both the ambient temperature water channel and the cooling medium pipeline are open simultaneously, the cooling medium pipeline further cools the cooled boiled water from the ambient temperature water channel to obtain iced boiled water. Thus, by adjusting the flow rates of the hot water channel, ambient temperature water channel, and cooling medium pipeline through the control system, a single device and a single outlet can output cooled boiled water or iced boiled water at a preset temperature as needed, achieving drinking water... The temperature is adjustable across the entire range. By adjusting the flow rates of the boiling water circuit, the ambient temperature water circuit, and the cold medium circuit, boiling water heated by the heating element can be quickly cooled to the preset temperature without the heating or cooling components operating in real time, thus reducing energy consumption. Only the heating element needs to operate to boil the water to provide a drinking water source, without the need to heat all the water in the boiling water circuit in real time, resulting in fast water output and improved user experience. Even when the ambient temperature water circuit and the cold medium circuit are closed, the boiling water circuit can still output boiling water directly, facilitating high-temperature disinfection of the outlet, avoiding bacterial growth, eliminating the need for special cleaning of the outlet, and ensuring drinking water safety. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a flow-type precision temperature-controlled water dispenser in one embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the first embodiment of the flow-type precision temperature-controlled water dispenser of the present invention;

[0024] Figure 3 This is a schematic diagram of the second embodiment of the flow-type precision temperature-controlled water dispenser of the present invention;

[0025] Figure 4 This is a schematic diagram of the third embodiment of the flow-type precision temperature-controlled water dispenser of the present invention;

[0026] Figure 5 This is a schematic diagram of the fourth embodiment of the flow-type precision temperature-controlled water dispenser of the present invention;

[0027] Figure 6 This is a schematic diagram of the fifth embodiment of the flow-type precision temperature-controlled water dispenser of the present invention;

[0028] Figure 7 This is a schematic diagram of the sixth embodiment of the flow-type precision temperature-controlled water dispenser of the present invention;

[0029] Figure 8 This is a schematic diagram of the seventh embodiment of the flow-type precision temperature-controlled water dispenser of the present invention;

[0030] Figure 9This is a schematic diagram of the eighth embodiment of the flow-type precision temperature-controlled water dispenser of the present invention;

[0031] Figure 10 This is a schematic diagram of the structure of a heat exchange component in one embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of the structure of the heat exchange component in another embodiment of the present invention;

[0033] Figure 12 for Figure 11 A schematic diagram of the structure of the heat exchange assembly after the first and second water-passing plate assemblies are removed in the embodiment shown.

[0034] Figure 13 This is a cross-sectional structural diagram of a heat exchange component in one embodiment of the present invention;

[0035] Figure 14 This is an exploded structural diagram of the first water-passing plate assembly in one embodiment of the present invention;

[0036] Figure 15 This is an exploded view of the second water-passing plate assembly in one embodiment of the present invention;

[0037] Figure 16 This is a schematic diagram of the structure of a metal partition in one embodiment of the present invention. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Please see Figure 1This invention discloses a low-energy-consumption, fast-dispensing, and pipeline-disinfecting flow-type precision temperature-controlled water dispenser 10. The water dispenser includes a casing and a control system 100, a heating element 200, a heat exchange element 300, a water tank 400, a refrigeration system, and a temperature-controlled mixing valve 600 housed within the casing. The control system 100 controls the operation of each component of the water dispenser, for example, by controlling the opening and closing of the water valve and the flow rate of the external water supply and the medium pipeline, thereby controlling the ratio of hot and cold water to the medium heat exchange and outputting drinking water at a precise temperature. The heating element 200 is electrically connected to the control system 100 and is used to heat room-temperature water to provide boiling water. In this embodiment, the heating element 200 includes a heating box with a heating cavity and a heating element mounted on the heating box. The heating end of the heating element is located inside the heating cavity to heat the room-temperature water flowing into the heating cavity. The heat exchange component 300 provides a heat exchange site for boiling water, room temperature water, and a cooling medium, ensuring sufficient heat exchange in the water within each pipe. The heat exchange component 300 includes independently configured boiling water path 310, room temperature water path 320, and cooling medium path 330. The boiling water path 310 sequentially exchanges heat with the room temperature water path 320 and the cooling medium path 330. The input end of the boiling water path 310 is connected to the output end of the heating element 200. The output end of the boiling water path 310 is used to output boiling water, cooled boiled water, iced boiled water, and warm water at a preset temperature. The output end of the room temperature water path 320 is connected to the input end of the heating element 200. The water tank 400 is connected to the input end of the room temperature water path 320 and is connected to an external water pipe for access to a water source. Alternatively, the water tank 400 can be installed independently of the external water pipe. It stores water to be heated, allowing the water dispenser to hold enough water for a longer period of use. The refrigeration system is electrically connected to the control system 100 and is connected to the input and output ends of the cold medium pipeline 330 respectively, for providing cold medium to the cold medium pipeline 330.

[0040] The temperature-regulating mixing valve 600 is installed on the output pipe of the hot water circuit 310. The temperature-regulating mixing valve 600 is also connected to the output end of the heating element 200 and the water tank 400. In this embodiment, the temperature-adjusting mixing valve 600 is a four-way valve used to adjust the final water temperature at the output end of the boiling water circuit 310. Specifically, the input end of the temperature-adjusting mixing valve 600 is connected to the boiling water circuit 310, the output end of the heating element 200, and the water tank 400. The output end of the temperature-adjusting mixing valve 600 outputs drinking water. During the use of the water dispenser, the user can switch the temperature-adjusting mixing valve 600 to connect to the output end of the boiling water circuit 310 to obtain drinking water at the appropriate temperature. When it is necessary to disinfect the pipeline at the water outlet of the water dispenser, the temperature-adjusting mixing valve 600 is switched to connect to the output end of the heating element 200 to facilitate the high-temperature sterilization of bacteria in the pipeline by boiling water. When it is necessary to empty the water in the water tank 400, the temperature-adjusting mixing valve 600 is switched to connect to the output end of the water tank 400 so that the water stored in the water tank 400 can be discharged through the water outlet of the water dispenser.

[0041] The control system 100 in this embodiment can be a control circuit board or a CPU or MCU chip with computing capabilities. The water dispenser also includes a start / stop switch and a mode switching switch electrically connected to the control system 100. A power adapter connected to the control system 100 and an external power source is provided inside the housing. The output end of the refrigeration system is provided with a solenoid valve electrically connected to the switching switch. A first button connected to the start / stop switch and a second button connected to the mode switching switch are installed on the surface of the housing. Preferably, the solenoid valve is a speed regulating valve. The user can connect or disconnect the control system 100 and the power adapter by pressing the first button to start or stop the water dispenser; by pressing the second button to open the solenoid valve, the hot water path 310 sequentially exchanges heat with the room temperature water path 320 and the cold medium path 330 to output chilled water at a lower temperature; by pressing the second button to close the solenoid valve, the hot water path 310 only exchanges heat with the room temperature water path 320 to output cooled water at a relatively higher temperature.

[0042] Please see Figure 2 , 3 6, 8, the present invention provides two refrigeration systems, one of which is a miniature refrigeration system 510 for providing a refrigerant to the cold medium pipe 330. Figure 2 , 3 As shown in Figure 6), the miniature refrigeration system 510 contains a refrigerant, which can be a gaseous or liquid refrigerant, such as Freon, dichlorodifluoromethane, or other refrigerants, provided that the refrigerant can flow within the refrigerant pipeline. Secondly, the refrigeration system includes an air compressor 520 electrically connected to the control system 100 and a vortex tube 530 connected to the output end of the air compressor 520. The cold air discharge pipe of the vortex tube 530 is used to supply the refrigerant to the cold medium pipeline 330. Figure 8(As shown). The vortex tube 530 includes a nozzle, a vortex chamber, a separation orifice plate, a cold pipe for outputting cold air, and a hot pipe for outputting hot air. During the operation of the vortex tube 530, the compressed gas expands in the nozzle and then enters the vortex tube 530 tangentially at a very high speed. When the airflow rotates at high speed in the vortex tube 530, it is separated into two parts of airflow with different total temperatures after vortex transformation. The airflow in the center has a lower temperature and is output as cold air from the cold pipe, while the airflow in the outer part has a higher temperature and is output as hot air from the hot pipe, thereby providing a refrigerant to the cold medium pipe 330.

[0043] Please see Figure 4 , 5 7. When the refrigeration system is a miniature refrigeration system 510, the flow-type precision temperature-controlled water dispenser 10 also includes an ice water tank 540 disposed between the refrigerant pipe 330 and the miniature refrigeration system 510, and a water pump 550 that pumps the ice water in the ice water tank 540 into the refrigerant pipe 330. The miniature refrigeration system 510 is equipped with a condenser pipe that is inserted into the ice water tank 540 and exchanges heat with the water in the ice water tank 540. By setting the ice water tank 540 between the refrigerant pipe 330 and the miniature refrigeration system 510, the water in the ice water tank 540 cools down after one heat exchange with the condenser pipe of the miniature refrigeration system 510. The cooled ice water is then directly input into the refrigerant pipe 330 as a cold source, enabling the recycling of the refrigerant. Please refer to [link / reference]. Figure 9 When the refrigeration system includes an air compressor 520 and a vortex tube 530, a compressed air storage tank 560 is provided between the air compressor 520 and the vortex tube 530 to facilitate the real-time delivery of compressed air to the vortex tube 530.

[0044] Please see Figure 2 , 4 6. In one embodiment, the flowing precision temperature-controlled water dispenser 10 further includes an RO reverse osmosis filtration system 700 installed on the connecting pipe between the water tank 400 and the ambient temperature water circuit 320. The RO reverse osmosis filtration system 700 is connected to the control system 100. The RO reverse osmosis filtration system 700 is used to filter out impurities in the water to avoid scale buildup in the heating element 200 after heating ambient temperature water, which could affect the service life of the heating element 200.

[0045] In one embodiment, the flow-type precision temperature-controlled water dispenser 10 further includes a temperature sensor 800 disposed between the output end of the hot water circuit 310 and the temperature-controlled mixing valve 600. The temperature sensor 800 is electrically connected to the control system 100. By using the temperature sensor 800, the control system 100 receives the temperature signal sent by the temperature sensor 800 in real time and compares the detected outlet water temperature with the set temperature value. When the outlet water temperature differs from the set temperature value, the control system 100 adjusts the flow rate of the refrigerant by controlling the opening and closing degree of the speed regulating valve, thereby adjusting the ratio of cooled boiled water to refrigerant and achieving the purpose of adjusting the heat exchange ratio between the cooled boiled water and the refrigerant, thus changing the outlet water temperature—that is, achieving one-time temperature feedback regulation. Through multiple feedback adjustments, the outlet water temperature eventually tends to match the set temperature value, thereby achieving precise temperature control of the water dispenser.

[0046] Furthermore, the surface of the casing is equipped with a touch screen or control panel connected to the control system 100. The user can input the temperature value to be set through the touch screen or control panel. The touch screen can also display the current water temperature and the set water temperature of the water dispenser. It can also be connected to a water level gauge installed in the water tank 400 to display the remaining water in the water tank 400.

[0047] It should be noted that the heat exchange assembly 300 can be either an integrated structure with heat exchange components connected in parallel, or a separate structure with heat exchange components connected in series. When the heat exchange assembly 300 is a separate structure, please refer to [link to relevant documentation]. Figure 10 The heat exchange assembly 300 includes a first heat exchanger 340 and a second heat exchanger 350 connected in series with the first heat exchanger 340. The first heat exchanger 340 has a hot water path 341 and a normal temperature water path 320. The second heat exchanger 350 has two hot water paths 351 and a cold medium pipe 330. The output end of the first hot water path 341 is connected to the input end of the second hot water path 351. The output end of the second hot water path 351 is connected to the temperature regulating mixing valve 600. The first hot water path 341 and the second hot water path 351 together constitute the hot water path 310. When a split-type structure is adopted, with the output end of the first hot water circuit 341 connected to the input end of the second hot water circuit 351, the outer shell of the first heat exchanger 340 is also fixedly connected to the outer shell of the second heat exchanger 350 by means of snap-fit, screw or thread connection, so as to realize the positioning of the first heat exchanger 340 and the second heat exchanger 350 and ensure the stability of the connection between the first hot water circuit 341 and the second hot water circuit 351.

[0048] Please combine Figure 11-13When the heat exchange assembly 300 is an integral structure, the heat exchange assembly 300 includes a first pressure plate 360, a second pressure plate 370, and a third pressure plate 380 spaced apart. A first water passage is formed between the first pressure plate 360 ​​and the second pressure plate 370, and a second water passage is formed between the second pressure plate 370 and the third pressure plate 380. A room temperature water passage 320 is disposed in the first water passage, and a cold medium pipe 330 is disposed in the second water passage. A hot water passage 310 extends from the first water passage to the second water passage, including a first hot water passage located in the first water passage and a second hot water passage located in the second water passage and connected to the first hot water passage. The first water passage is provided with a first water passage plate group 301 for forming a separate space for heat exchange between the room temperature water passage 320 and the first hot water passage, and the second water passage is provided with a second water passage plate group 302 for forming a separate space for heat exchange between the cold medium pipe 330 and the second hot water passage. The first water-passing plate assembly 301 is sealed and connected to the first pressure plate 360 ​​and the second pressure plate 370 respectively, and the second water-passing plate assembly 302 is sealed and connected to the second pressure plate 370 and the third pressure plate 380 respectively. In this embodiment, the first water-passing plate assembly 301 is used to provide a place for heat exchange between room temperature water and boiling water, and the second water-passing plate assembly 302 is used to provide a flow channel for cooled boiling water or a place for further cooling by heat exchange between cooled boiling water and the cooling medium, through the passage of a refrigerant medium. The first pressure plate 360, the second pressure plate 370, and the third pressure plate 380 work together to protect the first water-passing plate assembly 301 and the second water-passing plate assembly 302, shape the first water-passing plate assembly 301 and the second water-passing plate assembly 302, and together with the first water-passing plate assembly 301 and the second water-passing plate assembly 302, form a water passage or medium channel to provide a sealed environment for the flow of water or refrigerant. In addition, the second pressure plate 370 is also used to separate the hot and cold water heat exchange sites and the heat exchange sites between water and refrigerant, to prevent heat exchange between room temperature water and refrigerant, which would ultimately affect the temperature of the water output at the drinking water outlet.

[0049] The first pressure plate 360 ​​has a room temperature water inlet 361 at its bottom and a room temperature water outlet 362 and a hot water inlet 363 arranged side by side at its top. The third pressure plate 380 has a refrigerant inlet 381 and a drinking water outlet 382 arranged side by side at its top and a refrigerant outlet 383 at its bottom. The second pressure plate 370 has a water passage hole 371 at its bottom, which connects the first water passage area and the second water passage area. The two ends of the room temperature water passage 320 are connected to the room temperature water inlet 361 and the room temperature water outlet 362, respectively. The two ends of the first hot water passage are connected to the hot water inlet 363 and the water passage hole 371, respectively. The two ends of the refrigerant pipe 330 are connected to the refrigerant inlet 381 and the refrigerant outlet 383, respectively. The two ends of the second hot water passage are connected to the water passage hole 371 and the drinking water outlet 382, ​​respectively. In this application, the flow direction of boiling water is opposite to that of room temperature water, and the flow direction of cooled boiled water after entering the second water-passing zone is also opposite to that of the refrigerant. This ensures that the heat exchange volume at different locations within the first water-passing plate assembly 301 and the second water-passing plate assembly 302 is consistent during heat exchange between hot and cold water and between water and the refrigerant, thus facilitating control of the water temperature output from the drinking water outlet 382 (i.e., the water outlet). Furthermore, conduits are provided at the inlet and outlet positions of the first pressure plate 360 ​​and the third pressure plate 380 to reduce the difficulty of coordinating the water outlets with corresponding external pipelines.

[0050] In one embodiment, lugs are provided on both sides of the first pressure plate 360, the second pressure plate 370, and the third pressure plate 380, and each lug has a mounting hole for a bolt. Thus, during the assembly of the water dispenser, the heat exchange assembly 300 can be fixed to the inner wall of the housing using screws or bolts, achieving the positioning and installation of the heat exchange assembly 300 on the housing. Please refer to... Figure 12-13 The first water-passing plate group 301 includes multiple room temperature water plates 321 and boiling water plates 311 that are alternately stacked and separated by a metal partition 390. This can also be understood as a boiling water plate 311 placed between two adjacent room temperature water plates 321, and a room temperature water plate 321 placed between two adjacent boiling water plates 311. The second water-passing plate group 302 includes multiple medium plates 331 and cold water plates 312 that are alternately stacked and separated by a metal partition 390. Specifically, a cold water plate 312 is placed between two adjacent medium plates 331, and a medium plate 331 is placed between two adjacent cold water plates 312. The metal partition 390 is used to separate the boiling water path 310 and the room temperature water path 320, and also to separate the boiling water path 310 from the cold medium pipe 330. It provides the heat transfer medium between boiling water and room temperature water, and between cold water and the refrigerant, so that boiling water can exchange heat with room temperature water and the refrigerant in sequence.

[0051] The ambient temperature water plate 321, boiling water plate 311, medium plate 331, and cold water plate 312 are each perforated with channels to form waterways for providing water passages. For details, please refer to [link / reference]. Figure 13-16 The room temperature water plate 321 has a first channel 321a. Each first channel 321a and the metal partition 390 used to separate the room temperature water plate 321 and the hot water plate 311, or the first channel 321a and the first pressure plate 360 ​​or the second pressure plate 370 together form a first sub-channel. The boiling water plate 311 has a second channel 311a cut out. Each second channel 311a, together with the metal partition 390 used to separate the room temperature water plate 321 and the boiling water plate 311, or the second channel 311a, together with the first pressure plate 360 ​​or the second pressure plate 370, forms a second sub-channel. The metal partition 390 used to separate the room temperature water plate 321 and the boiling water plate 311 has a first through hole and a second through hole for connecting the spaced first sub-channels, and a third through hole and a fourth through hole for connecting the spaced second sub-channels. Each first sub-channel is connected to form a room temperature water path 320, and each second sub-channel is connected to form a boiling water path 310. The medium plate 331 has a third channel 331a cut out. Each third channel 331a, together with the metal partition 390 used to separate the medium plate 331 and the cold water plate 312, or the third channel 331a, together with the second pressure plate 370 or the third pressure plate 380, forms a medium channel. The cold water plate 312 has a fourth channel 312a cut out. Each fourth channel 312a, together with the metal partition 390 used to separate the medium plate 331 and the cold water plate 312, or the fourth channel 312a, together with the second pressure plate 370 or the third pressure plate 380, forms a third sub-channel. The metal partition 390 used to separate the medium plate 331 and the cold water plate 312 has a fifth and a sixth through hole for connecting the spaced medium channels, and a seventh and an eighth through hole for connecting the spaced third sub-channels.

[0052] In this embodiment, multiple room temperature water plates 321 and boiling water plates 311 are alternately stacked, and multiple cold water plates 312 and medium plates 331 are alternately stacked. Boiling water can simultaneously exchange heat with the warm water on both sides, and cold water can simultaneously exchange heat with the cooling medium on both sides. This increases the contact area between hot and cold water, as well as between water and the cooling medium, facilitating rapid cooling of the boiling water to obtain cool or iced water, thus improving the speed at which the water dispenser quickly outputs cool water at a suitable temperature. By opening the aforementioned through holes in the metal partition 390, the inlets of channels used for conveying the same type of water or medium can be connected to each other, and the outlets of channels used for conveying the same type of water or medium can be connected to each other, thereby achieving parallel connection of each water channel and each medium channel. While increasing the contact and heat conduction area between hot and cold water, as well as between water and the cooling medium, this shortens the distance between the water dispenser's inlet and outlet, thereby reducing water flow resistance and helping to reduce the overall size of the water dispenser.

[0053] In one embodiment, the first channel 321a, the second channel 311a, the third channel 331a, and the fourth channel 312a are respectively S-shaped, volute-shaped, or square spiral structures. The S-shaped structure here includes multiple S-bends, and can therefore be understood as a serpentine structure. By designing each channel with the above-mentioned structure, the flow channels for water and the cooling medium are extended, thus extending the heat exchange time and improving the cooling effect of the water. Furthermore, the room temperature water plate 321 is symmetrical to the boiling water plate 311, and the medium plate 331 is symmetrical to the cold water plate 312. In this embodiment, the room temperature water plate 321, the boiling water plate 311, the medium plate 331, and the cold water plate 312 are manufactured by casting, stamping, and milling. Thus, during the component processing, only one type of plate (including the room temperature water plate 321, the boiling water plate 311, the medium plate 331, and the cold water plate 312) can be produced; that is, each plate is processed using the same mold. When assembling the heat exchange component 300, the plate can be used directly as another plate or flipped over to be used as another plate, which improves the versatility of the parts and thus reduces the production cost of the water dispenser.

[0054] Furthermore, sealing rings 314 are respectively fitted onto the annular sides of the ambient temperature water plate 321, boiling water plate 311, medium plate 331, and cold water plate 312; and the sealing rings 314 have through holes respectively corresponding to communicating with the ambient temperature water inlet 361 and ambient temperature water outlet 362, or with the boiling water inlet 363 and water passage hole 371, or with the cooling medium inlet 381 and cooling medium outlet 383, or with the water passage hole 371 and drinking water outlet 382. Based on the fact that the above-mentioned plates are processed using the same mold, only one type of sealing ring 314 needs to be processed. During the assembly of the heat exchange component 300, the sealing rings 314 can be flipped according to the assembly requirements. That is to say, the sealing rings 314 are also universal parts, so as to reduce the production cost of the water dispenser. In this embodiment, the inner ring shape of the sealing ring 314 is adapted to the ring side shape of each plate, and the sealing ring 314 is made of PP material with a high safety level. In this way, when each plate is respectively embedded in the corresponding sealing ring 314, the outer surface of the plate is in contact with the inner ring surface of the sealing ring 314 to avoid water leakage or refrigerant leakage. It can also prevent water cross-contamination, that is, to prevent room temperature water from entering boiling water or refrigerant from entering boiling water, thus improving the safety of drinking water.

[0055] The first pressure plate 360, the second pressure plate 370, the third pressure plate 380, the metal partition 390, the room temperature water plate 321, the boiling water plate 311, the medium plate 331, and the cold water plate 312 are made of 304 stainless steel or 316 stainless steel, respectively. Other food-grade stainless steel, food-grade plastics, or silicone materials can also be used to avoid water contamination caused by harmful substances seeping into the water. 304 and 316 stainless steel have good high-temperature resistance and corrosion resistance, and are less prone to releasing harmful substances. By using 304 or 316 stainless steel to make each plate, the mechanical strength of the heat exchange component 300 is improved, while also enhancing drinking water safety.

[0056] The metal partition 390 has a mounting groove 391 for inserting the sealing ring 314. Please refer to [link / reference]. Figure 16 The metal partition 390 has a rectangular mounting groove 391. By opening the mounting groove 391, the room temperature water plate 321 and the hot water plate 311, as well as the cold water plate 312 and the medium plate 331 are positioned, which prevents the heat exchange component 300 from being difficult to install due to plate displacement, thereby improving the stability of the water dispenser structure.

[0057] The flow-type precision temperature-controlled water dispenser 10 of the present invention, by setting an interval of a boiling water path 310, a room temperature water path 320, and a cold medium pipe 330 that are capable of heat exchange, allows water heated by the heating element 200 to enter the boiling water path 310 and lower its temperature during heat exchange with the room temperature water path 320 to obtain cooled boiled water. When the room temperature water path 320 and the cold medium pipe 330 are opened simultaneously, the cold medium pipe 330 further cools the cooled boiled water after it has been cooled by the room temperature water path 320 to obtain iced boiled water. Thus, with the control system 100 adjusting the flow rates of the boiling water path 310, the room temperature water path 320, and the cold medium pipe 330, a single device and a single water outlet can output cooled boiled water or iced boiled water at a preset temperature as needed. The system enables full-range temperature adjustment of drinking water. By adjusting the flow rates of the boiling water path 310, the ambient temperature water path 320, and the cold medium pipe 330, the boiling water heated by the heating element 200 can be quickly cooled to the predetermined temperature without the need for heating or cooling components to operate in real time, thus reducing equipment energy consumption. Only the heating element 200 needs to operate to boil the water to provide a drinking water source, without the need to heat all the water in the boiling water path 310 in real time, resulting in fast water output and improved user experience. Even when the ambient temperature water path 320 and the cold medium pipe 330 are closed, the output of the boiling water path 310 can still directly output boiling water, facilitating high-temperature disinfection of the water outlet, avoiding bacterial growth, eliminating the need for special cleaning of the water outlet, and ensuring drinking water safety.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A flow-type precision temperature-controlled water dispenser, characterized in that, include: Control system; A heating element, which is electrically connected to a control system, is used to heat room temperature water to provide boiling water; A heat exchange assembly includes independently configured boiling water path, ambient temperature water path, and cold medium path. The boiling water path sequentially exchanges heat with the ambient temperature water path and the cold medium path. The input end of the boiling water path is connected to the output end of the heating element. The output end of the boiling water path is used to output boiling water, cooled boiled water, ice boiled water, and warm water at a preset temperature. The output end of the ambient temperature water path is connected to the input end of the heating element. A water tank, which is connected to the input end of a room temperature water circuit; A refrigeration system, electrically connected to the control system, and respectively connected to the input and output ends of the cold medium piping; and A temperature-adjusting mixing valve is installed on the output pipe of the hot water circuit, and the temperature-adjusting mixing valve is also connected to the output end of the heating element and the water tank.

2. The flow-type precision temperature-controlled water dispenser according to claim 1, characterized in that, It also includes an RO reverse osmosis filtration system installed on the connecting pipe between the water tank and the ambient temperature water circuit, and the RO reverse osmosis filtration system is connected to the control system.

3. The flow-type precision temperature-controlled water dispenser according to claim 1, characterized in that, The refrigeration system is a miniature refrigeration system used to provide a refrigerant to the cold medium pipeline.

4. The flow-type precision temperature-controlled water dispenser according to claim 3, characterized in that, It also includes an ice water tank disposed between the cold medium pipeline and the micro refrigeration system, and a water pump that pumps the ice water in the ice water tank into the cold medium pipeline. The micro refrigeration system is provided with a condenser pipeline that is inserted into the ice water tank and exchanges heat with the water in the ice water tank.

5. The flow-type precision temperature-controlled water dispenser according to claim 1, characterized in that, The refrigeration system includes an air compressor electrically connected to the control system and a vortex tube connected to the output end of the air compressor. The cold air discharge pipe of the vortex tube is used to provide a refrigerant to the cold medium pipeline.

6. The flow-type precision temperature-controlled water dispenser according to claim 5, characterized in that, A compressed air storage tank is provided between the air compressor and the vortex tube.

7. The flow-type precision temperature-controlled water dispenser according to any one of claims 1 to 6, characterized in that, It also includes a temperature sensor installed between the hot water output terminal and the temperature-adjusting mixing valve, and the temperature sensor is electrically connected to the control system.

8. The flow-type precision temperature-controlled water dispenser according to claim 7, characterized in that, The heat exchange assembly includes a first heat exchanger and a second heat exchanger connected in series with the first heat exchanger. The first heat exchanger has a hot water path and a room temperature water path. The second heat exchanger has two hot water paths and a cold medium pipeline. The output end of the first hot water path is connected to the input end of the second hot water path. The output end of the second hot water path is connected to a temperature-regulating mixing valve. The first hot water path and the second hot water path together constitute the hot water path.

9. The flow-type precision temperature-controlled water dispenser according to claim 7, characterized in that, The heat exchange assembly includes a first pressure plate, a second pressure plate, and a third pressure plate spaced apart. A first water passage is formed between the first and second pressure plates, and a second water passage is formed between the second and third pressure plates. The ambient temperature water passage is located within the first water passage, and the cold medium pipe is located within the second water passage. The hot water passage extends from the first water passage to the second water passage, including a first hot water passage located in the first water passage and a second hot water passage located in the second water passage and connected to the first hot water passage. The first water passage is provided with a first water passage plate group for forming a separated ambient temperature water passage and the first hot water passage for heat exchange, and the second water passage is provided with a second water passage plate group for forming a separated cold medium pipe and the second hot water passage for heat exchange. The first pressure plate has a room temperature water inlet at its bottom and a room temperature water outlet and a hot water inlet side by side at its top. The third pressure plate has a refrigerant inlet and a drinking water outlet side by side at its top and a refrigerant outlet at its bottom. The second pressure plate has a water passage hole at its bottom, which connects the first water passage area and the second water passage area. The two ends of the room temperature water passage are connected to the room temperature water inlet and the room temperature water outlet, respectively. The two ends of the first hot water passage are connected to the hot water inlet and the water passage hole, respectively. The two ends of the refrigerant pipe are connected to the refrigerant inlet and the refrigerant outlet, respectively. The two ends of the second hot water passage are connected to the water passage hole and the drinking water outlet, respectively.

10. The flow-type precision temperature-controlled water dispenser according to claim 9, characterized in that, The first water-passing plate group includes multiple room temperature water plates and boiling water plates that are alternately stacked and separated by metal partitions; the second water-passing plate group includes multiple medium plates and cold water plates that are alternately stacked and separated by metal partitions; the room temperature water plates, boiling water plates, medium plates and cold water plates are respectively perforated with channels to form water channels for providing water passages.

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