Instant-cooling and instant-heating type direct drinking machine and control method thereof

Abstract

The invention discloses an instant-cooling and instant-heating type direct drinking machine and a control method thereof.The instant-cooling and instant-heating type direct drinking machine comprises a refrigeration module, the refrigeration module comprises a water cooling plate, one face of the water cooling plate is attached to one face of a first semiconductor chilling plate, and the other face of the first semiconductor chilling plate is attached to a first radiator; the other face of the water cooling plate is attached to one face of the second semiconductor chilling plate, and the other face of the second semiconductor chilling plate is attached to the second radiator. A water cooling plate temperature sensor is arranged on the water cooling plate; heat insulation assemblies are arranged between the water cooling plate and the first radiator and between the water cooling plate and the second radiator. The refrigeration module and the heating module are integrated, a compressor refrigeration system and a resistance wire heating system are not needed, the whole structure of the direct drinking machine is simpler, and modular production and later maintenance are facilitated; the control display module carries out pre-cooling or pre-heating by controlling and changing the temperature of the water cooling plate, water is heated or refrigerated through the water cooling plate, the time is only 1 / 15-1 / 10 of the pre-cooling time of the compressor, and the direct drinking function can be truly achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of direct drinking machines, and in particular to an instant cooling and heating direct drinking machine and a control method thereof. Background Art

[0002] At present, the water purifiers with ice water making function on the market are divided into two categories, one is the water purifier with ice tank water storage, and the other is the semi-direct drinking machine without ice tank. According to the refrigeration method, it is divided into two methods: compressor refrigeration water and semiconductor refrigeration plate refrigeration water. Among them, the refrigeration efficiency of compressor refrigeration water is higher than that of semiconductor refrigeration plate method. Under the same power consumption, the refrigeration capacity of the compressor is 2 to 3 times that of the semiconductor refrigeration method. Therefore, compressor refrigeration is generally used in semi-direct drinking machines, but its first refrigeration time also takes 20-30 minutes, and it does not realize the real direct drinking function; the semiconductor refrigeration method has a simple structure and high reliability, but the refrigeration capacity is less than the compressor refrigeration under the same power consumption, so it is generally necessary to use ice tank to store cold water. Users drink stored ice water, which has problems such as bacterial growth. The compressor direct drinking machine involves four major parts of mechanical refrigeration, complex structure and pipelines, many production and manufacturing processes, and requires welding of copper pipes and leak detection processes. The production efficiency is low, and it is also necessary to solve problems such as vibration noise and difficult maintenance and replacement. At the same time, in order to produce hot water, it is necessary to wrap the heating wire outside the pipeline, resulting in too many structural parts of the direct drinking machine, which is not conducive to the rapid maintenance and replacement of parts.

[0003] The "Instant Cold Drinking Water Dispenser" disclosed in the Chinese patent literature has a publication number of CN221036984U and a publication date of 2024-05-28, which includes a refrigeration system, and also includes an ice-water heat exchanger and an ice storage heat exchanger box arranged in close proximity, and heat transfer is performed through the side walls of the ice-water heat exchanger and the ice storage heat exchanger box that are in contact with each other; an ice storage heat exchanger coil is arranged in the ice storage heat exchanger box, and both ends of the ice storage heat exchanger coil pass through the outside of the ice storage heat exchanger box to communicate with the refrigeration system, and are combined with the refrigeration system to form a flow circuit of the refrigerant, and the ice storage heat exchanger box is filled with ice storage phase change material; the horizontal thickness of the ice-water heat exchanger is less than the thickness of the ice storage heat exchanger box, and a baffle channel for water supply outflow is arranged in the ice-water heat exchanger, a drinking water inlet pipe is arranged at the top of the ice-water heat exchanger, a drinking water inlet valve is arranged on the drinking water inlet pipe, an ice water outlet pipe is arranged at the bottom of the ice-water heat exchanger, and an ice water outlet nozzle is arranged at the end of the ice water outlet pipe. The cooling time is short and ice water can be made quickly. However, the compressor-type direct drinking machine involves the complex structure and pipelines required for mechanical refrigeration. Too many structural parts are not conducive to the rapid maintenance and replacement of parts. At the same time, the first cooling time of the compressor-type refrigeration is 20-30 minutes, and it does not achieve true direct drinking. Summary of the invention

[0004] The present invention aims to overcome the problems in the prior art that the compressor type direct drinking machine involves complex structure and piping required for mechanical refrigeration, too many structural parts are not conducive to the rapid maintenance and replacement of parts, and the compressor type refrigeration takes 20-30 minutes for the first cooling, and does not achieve true direct drinking. The present invention provides an instant hot and cold direct drinking machine and a control method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A direct drinking machine for instant cooling and heating, comprising a refrigeration module, the refrigeration module comprising a water-cooling plate, one side of the water-cooling plate is bonded to one side of a first semiconductor refrigeration sheet, and the other side of the first semiconductor refrigeration sheet is bonded to a first radiator; the other side of the water-cooling plate is bonded to one side of a second semiconductor refrigeration sheet, and the other side of the second semiconductor refrigeration sheet is bonded to a second radiator; a water-cooling plate temperature sensor is arranged on the water-cooling plate; and a heat insulation component is arranged between the water-cooling plate and the first radiator and between the water-cooling plate and the second radiator.

[0006] The refrigeration module in the present invention is a multi-layer flat-plate composite structure, with semiconductor refrigeration sheets attached to the front and back sides of the water-cooled plate. The hot and cold sides of the semiconductor refrigeration sheets are switched by changing the direction of the current passing through the semiconductor refrigeration sheets, so that cooling or heating can be performed on the front and back sides at the same time to increase the cooling or heating speed; the refrigeration and heating modules are integrated, and there is no need for two systems, namely, compressor refrigeration and resistance wire heating, so that the overall structure of the direct drinking machine is simpler and convenient for modular production and later maintenance; compared with the compressor pre-cooling time of about 20-30 minutes, the pre-cooling time of the direct drinking machine using the water-cooled plate is only 1 / 15 to 1 / 10 of that of the compressor, which can truly realize the direct drinking function; the control and display module controls the change of the temperature of the water-cooled plate for pre-cooling or preheating, and heats or cools the water through the water-cooled plate, so that the temperature of the water can be controlled and drunk within a certain temperature range; there is no ice gall structure in the direct drinking machine, and there is no water in the water-cooled plate, so the temperature can be reduced to below zero to avoid the breeding of bacteria, and it has a sterilization function.

[0007] Preferably, the direct drinking machine further comprises a control display module, and the control display module controls the operation of the refrigeration module and the water purification module; The refrigeration module is connected to the water purification module through a water inlet pipeline in the pipeline system, and is connected to the water to be changed in temperature; The water cooling plate temperature sensor transmits the temperature data of the water cooling plate to the control display module.

[0008] Preferably, a flow regulating valve and a water outlet switch are sequentially arranged on the water inlet pipeline in a direction from the water purification module to the refrigeration module; The control display module is connected to the flow regulating valve and the water outlet switch to control the water inlet flow and the opening and closing of the switch.

[0009] Preferably, the thermal insulation assembly comprises a first hollow slot thermal insulation cotton surrounding the first semiconductor refrigeration plate, a second hollow slot thermal insulation cotton surrounding the second semiconductor refrigeration plate, and a third thermal insulation member surrounding the water cooling plate; The first empty slot heat insulation cotton and the second empty slot heat insulation cotton have the same contour and are consistent with the contours of the front and back sides of the water cooling plate.

[0010] Preferably, the flow channel structure of the water cooling plate includes a serpentine flow channel and a microchannel flow channel; The water cooling plate is provided with a sensor space, and a water cooling plate temperature sensor is installed to collect the temperature of the water cooling plate.

[0011] Preferably, a fan is arranged on the same side of the first radiator and the second radiator, and the rotating surface of the fan blade is perpendicular to the front or back surface of the water cooling plate; The control display module is connected to the fan.

[0012] A control method for an instant hot and cold drinking machine, comprising: Set the outlet water temperature value, and collect the inlet water temperature value and the temperature value of the water cooling plate in real time; When the outlet water temperature is greater than the inlet water temperature or the ambient temperature, the heating mode is activated to heat the water cooling plate to the heating temperature corresponding to the outlet water temperature. When the outlet water temperature is lower than the inlet water temperature or the ambient temperature, the cooling mode is activated to cool the water cooling plate to the cooling temperature corresponding to the outlet water temperature.

[0013] Preferably, the process of obtaining the heating temperature corresponding to the outlet water temperature value includes: Under the condition of constant water inlet flow, based on different water inlet temperature values ​​or ambient temperature, collect several water cooling plate temperatures and their corresponding water outlet temperature values; During the collection process, the water-cooled plate is heated by a semiconductor refrigeration sheet to keep its temperature constant and greater than the outlet water temperature. The collected water-cooling plate temperature and the corresponding outlet water temperature value are fitted to obtain the water-cooling plate heating model.

[0014] Preferably, the process of obtaining the refrigeration temperature corresponding to the outlet water temperature value comprises: Under the condition of constant water inlet flow, based on different water inlet temperature values ​​or ambient temperature, collect several water cooling plate temperatures and their corresponding water outlet temperature values; During the collection process, the water-cooled plate is cooled by a semiconductor refrigeration sheet to keep the temperature constant and lower than the outlet water temperature. The collected water-cooling plate temperature and the corresponding outlet water temperature value are fitted to obtain the water-cooling plate refrigeration model.

[0015] Preferably, the direct drinking machine also includes a sterilization mode, in which the water cooling plate is heated by the first semiconductor refrigeration sheet and the second semiconductor refrigeration sheet to perform high-temperature sterilization.

[0016] The present invention has the following beneficial effects: the refrigeration and heating modules are integrated, and there is no need for two systems, namely, compressor refrigeration and resistance wire heating, so that the overall structure of the direct drinking machine is simpler and convenient for modular production and later maintenance; compared with the compressor precooling which takes about 20-30 minutes, the precooling time of the direct drinking machine of the present invention is only 1 / 15 to 1 / 10 of that of the compressor, and the direct drinking function can be truly realized; the control display module precools or preheats by controlling the temperature of the water cooling plate, and heats or cools the water through the water cooling plate, and the temperature of the water can be controlled within 4 to 90°C for drinking; there is no ice tank structure in the direct drinking machine, and there is no water in the water cooling plate, so the temperature can be reduced to below zero to avoid the growth of bacteria, and it has a sterilization function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the refrigeration module of the instant hot and cold direct drinking machine of the present invention.

[0018] Figure 2 It is a schematic diagram of the instant hot and cold direct drinking machine of the present invention.

[0019] Figure 3 It is a schematic diagram of the flow channel structure of the water cooling plate in the present invention.

[0020] Figure 4 It is a flow chart of the control method of the instant hot and cold direct drinking machine of the present invention.

[0021] In the figure: 1. Water purification module; 2. Refrigeration module; 3. Control and display module; 4. Pipe system; 41. Flow control valve; 42. Water outlet switch; 5. Outer shell; 61. First radiator; 62. Second radiator; 7. Third thermal insulation component; 81. First empty slot thermal insulation cotton; 82. Second empty slot thermal insulation cotton; 91. First semiconductor refrigeration plate; 92. Second semiconductor refrigeration plate; 10. Water cooling plate temperature sensor; 11. Water cooling plate; 12. Fan. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] like Figure 1As shown, an instant hot and cold drinking machine includes a refrigeration module 2, which includes a water-cooling plate 11. One side of the water-cooling plate 11 is attached to one side of a first semiconductor refrigeration sheet 91, and the other side of the first semiconductor refrigeration sheet 91 is attached to a first radiator 61; the other side of the water-cooling plate 11 is attached to one side of a second semiconductor refrigeration sheet 92, and the other side of the second semiconductor refrigeration sheet 92 is attached to a second radiator 62; a water-cooling plate temperature sensor 10 is provided on the water-cooling plate 11; and a heat insulation component is provided between the water-cooling plate 11 and the first radiator 61 and between the water-cooling plate 11 and the second radiator 62.

[0024] It should be noted that the refrigeration module in the present invention is a multi-layer flat-plate composite structure, with semiconductor refrigeration sheets attached to the front and back sides of the water-cooled plate. By changing the direction of the current passing through the semiconductor refrigeration sheets to switch the hot and cold sides of the semiconductor refrigeration sheets, cooling or heating can be performed on the front and back sides at the same time to increase the cooling or heating speed; the refrigeration and heating modules are integrated, and there is no need for two systems, compressor refrigeration and resistance wire heating, which makes the overall structure of the direct drinking machine simpler and facilitates modular production and later maintenance; compared with the compressor pre-cooling time of about 20-30 minutes, the pre-cooling time of the direct drinking machine using a water-cooled plate is only 1 / 15 to 1 / 10 of that of the compressor, which can truly realize the direct drinking function; there is no ice tank structure in the direct drinking machine, and there is no water in the water-cooled plate, so the temperature can be reduced to below zero to avoid the breeding of bacteria, and it has a sterilization function.

[0025] Furthermore, the middle layer of the multi-layer flat-plate composite structure is a water-cooled plate 11, and the front and back sides of the water-cooled plate are tightly fitted with the first semiconductor refrigeration plate 91 and the second semiconductor refrigeration plate 92 respectively. Interface materials (such as thermal grease, thermal adhesive, graphite sheet, phase change material, etc.) can be used in the gap to provide thermal conductivity and reduce contact thermal resistance. The side of the semiconductor refrigeration plate that is not fitted with the water-cooled plate 11 is connected to the radiator, and interface materials can also be used at the connection to realize the overall multi-layer composite structure of the first radiator 61-interface material-first semiconductor refrigeration plate 91-interface material-water-cooled plate 11-interface material-second semiconductor refrigeration plate 92-interface material-second radiator 62. Insulation components are arranged between the water-cooled plate 11 and the two radiators to isolate the water-cooled plate 11 from the first radiator 61 and the second radiator 62, avoid cold and heat conduction, and at the same time avoid the loss of cold or heat from the water-cooled plate 11.

[0026] When cooling, the first semiconductor refrigeration sheet 91 and the second semiconductor refrigeration sheet 92 are attached to the water-cooled plate 11 on the side that is used for cooling, and the first semiconductor refrigeration sheet 91 and the second semiconductor refrigeration sheet 92 are attached to the first radiator 61 and the second semiconductor refrigeration sheet 92 are attached to the second radiator 62 on the hot side, and the heat is dissipated through the radiator. When heating, the direction of the current passing through the semiconductor refrigeration sheet is opposite to that during cooling, and the first semiconductor refrigeration sheet 91 and the second semiconductor refrigeration sheet 92 are attached to the water-cooled plate 11 on the side that is used for heating.

[0027] As a specific example, Figure 2 As shown, the direct drinking machine also includes a control display module 3, which controls the operation of the refrigeration module 2 and the water purification module 1; the refrigeration module 2 is connected to the water purification module 1 through the water inlet pipeline in the pipeline system 4, and is connected to the water to be changed in temperature; the water cooling plate temperature sensor 10 transmits the temperature data of the water cooling plate 11 to the control display module 3; the control display module 3, the refrigeration module 2, the water purification module 1, and the pipeline system 4 of the direct drinking machine are all arranged in the outer shell 5 and combined into a whole.

[0028] It should be noted that the control and display module 3 controls the change of the temperature of the water-cooling plate 11 to pre-cool or pre-heat, and heats or cools the water flowing in through the water inlet pipe through the water-cooling plate 11, so that the water can be drunk at a controlled temperature within a certain temperature range, and the user does not need to wait for the cooling or heating time to realize the direct drinking function. The control and display module 3 includes a control unit and a display unit. The control unit controls the operation of the direct drinking machine, and the display unit can display the current ambient temperature, water inlet temperature value, water-cooling plate temperature, set water outlet temperature value, working mode and other operating status information of the direct drinking machine.

[0029] It is worth noting that the refrigeration module 2 in the present invention adopts a multi-layer flat-plate composite structure of semiconductor refrigeration, and at the same time, modular settings are implemented for water purification functions, control functions, etc., so that the overall direct drinking machine structure is simpler; the water inlet of the water-cooled plate 11 in the refrigeration module 2 can be directly connected to the water purification module 1 through the water inlet pipeline of the pipeline system 4, and the water outlet can be connected to the water outlet of the direct drinking machine through the water outlet pipeline, thereby realizing modular rapid assembly or replacement, which is convenient for production and later maintenance.

[0030] Specifically, on the water inlet pipeline, a flow regulating valve 41 and a water outlet switch 42 are sequentially arranged in the direction from the water purification module 1 to the refrigeration module 2; the control display module 3 is connected to the flow regulating valve 41 and the water outlet switch 42 to control the water inlet flow and the opening and closing of the switch.

[0031] It should be noted that in the direct drinking machine, the water purification module purifies and filters the water, and then flows into the refrigeration module for cooling or heating, and then flows out. The flow regulating valve 41 and the water outlet switch 42 are set on the water inlet pipeline. When the user does not turn on the water outlet switch 42, the water cooling plate 11 in the refrigeration module 2 does not store purified water, which can effectively prevent bacteria from growing in the retained cold water; after the user turns on the water outlet switch 42, the purified water at room temperature is cooled or heated to the preset water outlet temperature value through the water cooling plate 11, and then flows into the user's water container through the outlet, so that it can be truly directly drunk without waiting time for cooling or heating.

[0032] As a specific embodiment, the heat insulation assembly includes a first empty slot heat insulation cotton 81 surrounding the first semiconductor refrigeration plate 91, a second empty slot heat insulation cotton 82 surrounding the second semiconductor refrigeration plate 92, and a third heat insulation member 7 surrounding the water cooling plate 11; The first empty slot heat insulation cotton 81 and the second empty slot heat insulation cotton 82 have the same contour, and are consistent with the contours of the front and back surfaces of the water-cooling plate 11 .

[0033] It should be noted that the purpose of providing the heat insulation component is to isolate the water-cooled plate 11 from the first radiator 61 and the second radiator 62, to avoid cold and heat conduction, and to prevent the cooling or heat loss of the water-cooled plate 11. Figure 1 As shown, the contour of the first hollow slot heat insulation cotton 81 is the same as the contour of the second hollow slot heat insulation cotton 82; and is consistent with the contours of the front and back surfaces of the water cooling plate 11, so that the front and back surfaces of the water cooling plate 11 will not directly contact the radiator.

[0034] The first hollow slot heat insulation cotton 81 is hollowed out, and the hollowed-out part is used to place the corresponding first semiconductor cooling sheet 91. When there are multiple first semiconductor cooling sheets 91, the first hollow slot heat insulation cotton 81 will also have the same number of corresponding hollowed-out settings, so that the front of the water-cooled plate 11 is connected to the first radiator 61 through the first semiconductor cooling sheet 91, and the remaining part not in contact with the first semiconductor cooling sheet 91 is isolated from the first radiator 61 through the first hollow slot heat insulation cotton 81. The height of the first hollow slot heat insulation cotton 81 is the same as that of the first semiconductor cooling sheet 91, or slightly higher than the first semiconductor cooling sheet 91.

[0035] The second hollow slot heat insulation cotton 82 is hollowed out, and the hollowed-out part is used to place the corresponding second semiconductor cooling sheet 92. When there are multiple second semiconductor cooling sheets 92, the second hollow slot heat insulation cotton 82 will also have the same number of corresponding hollowed-out settings, so that the back side of the water-cooled plate 11 is connected to the second radiator 62 through the second semiconductor cooling sheet 92, and the remaining part not in contact with the second semiconductor cooling sheet 92 is isolated from the second radiator 62 by the second hollow slot heat insulation cotton 82. The height of the second hollow slot heat insulation cotton 82 is the same as that of the second semiconductor cooling sheet 92, or slightly higher than the second semiconductor cooling sheet 92.

[0036] The third thermal insulation member 7 is arranged around the water-cooled plate 11 to prevent the cold or heat of the water-cooled plate 11 from overflowing and being lost through the side of the water-cooled plate 11. In order to achieve the best isolation effect, the height of the third thermal insulation member 7 should be the sum of the height of the water-cooled plate 11 and the height of the first semiconductor refrigeration plate 91 and the second semiconductor refrigeration plate 92; thereby completing all-round thermal insulation of the water-cooled plate 11.

[0037] As a specific example, Figure 3 As shown, the flow channel structure of the water cooling plate 11 includes a serpentine flow channel (such as Figure 3 a) and microchannel flow channels (such as Figure 3 b); A sensor space is opened on the water cooling plate 11, and a water cooling plate temperature sensor 10 is installed to collect the temperature of the water cooling plate 11.

[0038] It should be noted that the flow channel structure in the water-cooled plate 11 is not fixed, and different flow channel designs can be made according to product positioning, such as ordinary serpentine flow channels, straight pipe flow channels, etc., and microchannel flow channels can also be used to enhance the heat exchange effect between the water-cooled plate 11 and the purified water. A water-cooled plate temperature sensor 10 is set on the water-cooled plate 11 to monitor the temperature of the water-cooled plate 11 in real time, so that it is maintained at a heating temperature or cooling temperature corresponding to the outlet water temperature value, so that the purified water enters the water-cooled plate 11 from the water inlet pipe, and the temperature is adjusted to the target outlet water temperature value before flowing into the user's container to achieve direct drinking.

[0039] Furthermore, a fan 12 is arranged on the same side of the first radiator 61 and the second radiator 62 , and the blade rotation surface of the fan 12 is perpendicular to the front or back surface of the water cooling plate 11 ; the control display module 3 is connected to the fan 12 .

[0040] It should be noted that in order to enhance the heat dissipation capacity of the first radiator 61 and the second radiator 62 and prevent heat accumulation in the direct drinking machine from affecting the cooling effect of the refrigeration module, a fan 12 can be added to accelerate the heat dissipation.

[0041] In order to facilitate the modular installation and production of the refrigeration module, the size of the fan 12 needs to match the multi-layer composite structure of the first radiator 61-interface material-first semiconductor refrigeration plate 91-interface material-water cooling plate 11-interface material-second semiconductor refrigeration plate 92-interface material-second radiator 62. One fan 12 can take away the heat from two radiators at the same time.

[0042] Based on the instant hot and cold direct drinking machine of the present invention, Figure 4 The figure shows a corresponding control method of an instant hot and cold drinking machine, including: Set the outlet water temperature value, and collect the inlet water temperature value and the temperature value of the water cooling plate in real time; When the outlet water temperature is greater than the inlet water temperature or the ambient temperature, the heating mode is activated to heat the water cooling plate to the heating temperature corresponding to the outlet water temperature. When the outlet water temperature is lower than the inlet water temperature or the ambient temperature, the cooling mode is activated to cool the water cooling plate to the cooling temperature corresponding to the outlet water temperature.

[0043] It should be noted that, ideally, after setting the outlet water temperature value, the control display module heats or cools the water-cooling plate to the heating temperature or cooling temperature corresponding to the outlet water temperature value according to the heating mode or cooling mode. After keeping the temperature of the water-cooling plate constant, clean water flows into the water-cooling plate for heat exchange, thereby flowing out water with the preset outlet water temperature value. The process of heating or cooling the entire water-cooling plate to the heating temperature or cooling temperature takes about one minute, which is much less than the 20-30 minutes of the compressor. Therefore, if the user sets the outlet water temperature value and waits for about one minute before drinking water, the control display module does not need to adjust the water volume, and the user can directly get water with the preset outlet water temperature value.

[0044] If the user does not want to wait for about a minute before drinking water to save water after setting the water outlet temperature value, when the user directly receives water, in the cooling mode, after the water cooling plate is cooled to the temperature of the water cooling plate lower than the water outlet temperature value, the clean water can flow into the water cooling plate to start cooling. In this process, since the cooling power of the semiconductor refrigeration chip must simultaneously supply the cooling demand of the water cooling plate and the cooling demand of the clean water flowing in, it is necessary to reduce the water outlet flow rate by controlling the display module, so that the amount of cold absorbed by the cold water reaching the water outlet temperature value per unit time is less than the cooling capacity of the semiconductor refrigeration chip, thereby providing the user with water that meets the temperature requirements and continuing to cool the water cooling plate until the water cooling plate reaches the cooling temperature.

[0045] In the heating mode, when the water-cooling plate is heated to a temperature greater than the outlet water temperature, clean water can flow into the water-cooling plate to start heating. In this process, since the heating power of the semiconductor refrigeration chip must simultaneously supply the heating needs of the water-cooling plate and the heating needs of the incoming clean water, it is necessary to reduce the outlet water flow rate by controlling the display module so that the heat absorbed by the hot water reaching the outlet water temperature value per unit time is less than the heating capacity of the semiconductor refrigeration chip. This can provide users with water that meets the temperature requirements and continue to heat the water-cooling plate until the water-cooling plate reaches the heating temperature.

[0046] The determination of the heating mode and the cooling mode is made by comparing the outlet water temperature value with the inlet water temperature value, that is, when the outlet water temperature value is greater than the inlet water temperature value of the purified water before flowing into the water cooling plate, it indicates that the water needs to be heated and enters the heating mode; when the outlet water temperature value is less than the inlet water temperature value of the purified water before flowing into the water cooling plate, it indicates that the water needs to be cooled and enters the cooling mode. Under certain circumstances, measuring the temperature of the purified water before flowing into the water cooling plate requires adding a temperature sensor to the water system to complicate the structure, and it is still only a rough temperature measurement and does not need to be too precise. Therefore, the ambient temperature can be directly used instead of the inlet water temperature value, because the temperature of the purified water under normal conditions changes with the ambient temperature and tends to be close to the ambient temperature. When the ambient temperature is high, there is generally a greater probability of demanding cold water, and when the ambient temperature is low, there is a greater probability of demanding hot water, so it does not affect the final actual working effect.

[0047] As a specific embodiment, the process of obtaining the heating temperature corresponding to the outlet water temperature value includes: Under the condition of constant water inlet flow, based on different water inlet temperature values ​​or ambient temperature, collect several water cooling plate temperatures and their corresponding water outlet temperature values; During the collection process, the water-cooled plate is heated by a semiconductor refrigeration sheet to keep its temperature constant and greater than the outlet water temperature. The collected water-cooling plate temperature and the corresponding outlet water temperature value are fitted to obtain the water-cooling plate heating model.

[0048] It should be noted that there is a maximum flow rate or an optimal working flow rate for the amount of water flowing into the user's container in the piping system of the direct drinking machine, so the maximum flow rate or the optimal working flow rate can be used as a constant water inlet flow rate in the data collection process. When the water inlet flow rate is constant, based on different water inlet temperature values ​​or ambient temperatures, the water cooling plate is maintained at a number of constant temperature values ​​by controlling the heating power of the semiconductor refrigeration plate, and the outlet water temperature value of the purified water corresponding to each water cooling plate temperature value is measured; and the water cooling plate temperature and the outlet water temperature value are fitted to obtain a water cooling plate heating model at a certain water inlet temperature value or ambient temperature. When the water inlet temperature value or the ambient temperature is in a similar range, the corresponding water cooling plate heating model is also very similar, so a water cooling plate heating model corresponding to the water inlet temperature value or ambient temperature in each range can be selected. When the direct drinking machine is working in the future, the corresponding water cooling plate heating model is called according to the water inlet temperature or ambient temperature, and the heating temperature of the water cooling plate to be heated is calculated according to the set outlet water temperature value.

[0049] Furthermore, the process of obtaining the cooling temperature corresponding to the outlet water temperature value includes: Under the condition of constant water inlet flow, based on different water inlet temperature values ​​or ambient temperature, collect several water cooling plate temperatures and their corresponding water outlet temperature values; During the collection process, the water-cooled plate is cooled by a semiconductor refrigeration sheet to keep the temperature constant and lower than the outlet water temperature. The collected water-cooling plate temperature and the corresponding outlet water temperature value are fitted to obtain the water-cooling plate refrigeration model.

[0050] It should be noted that there is a maximum flow rate or an optimal working flow rate for the amount of water flowing into the user's container in the piping system of the direct drinking machine, so the maximum flow rate or the optimal working flow rate can be used as a constant water inlet flow rate in the data collection process. When the water inlet flow rate is constant, based on different water inlet temperature values ​​or ambient temperatures, the cooling power of the semiconductor refrigeration plate is controlled to maintain the water cooling plate at a number of constant temperature values, and the outlet water temperature value of the purified water corresponding to each water cooling plate temperature value is measured; and the water cooling plate temperature and the outlet water temperature value are fitted to obtain a water cooling plate cooling model at a certain water inlet temperature value or ambient temperature. When the water inlet temperature value or the ambient temperature is in a similar range, the corresponding water cooling plate cooling models are also very similar, so a water cooling plate cooling model corresponding to the water inlet temperature value or ambient temperature in each range can be selected. When the direct drinking machine is working in the future, the corresponding water cooling plate cooling model is called according to the water inlet temperature or ambient temperature, and the cooling temperature of the water cooling plate to be cooled is calculated according to the set outlet water temperature value.

[0051] The direct drinking machine also includes a sterilization mode, which heats the water cooling plate through the first semiconductor refrigeration sheet and the second semiconductor refrigeration sheet to perform high-temperature sterilization.

[0052] When powered on, the heating function of the semiconductor cooling chip can be used directly to sterilize at any time, avoiding the problem of bacterial growth in traditional cold tank water purifiers and inconvenient and incomplete sterilization in compressor water purifiers. Users can set functions such as timed sterilization or sterilization after each power outage and power-on according to their preferences. If set to timed sterilization, the control display module will start the heating function of the semiconductor cooling chip at the specified time according to the time setting, heat the water cooling plate to achieve high-temperature sterilization, and use the flow control valve to flush the water cooling plate at high temperature to remove dirt. At the same time, since no cold water is stored in the water cooling plate when it is not working, it avoids the large-scale growth of bacteria, which can greatly improve the cleanliness of daily water purification and avoid frequent use of the sterilization function.

[0053] In an embodiment of the present invention, after power-on, the refrigeration module starts working according to the temperature before the last shutdown, and cools or heats the water-cooled plate. On the display unit, the user can set the water outlet temperature value in the range of 4 to 90°C according to demand, and the control display module adjusts the power of the refrigeration module according to the set water outlet temperature value, so that the temperature of the water-cooled plate reaches the corresponding heating temperature or cooling temperature and stabilizes at this value. At the same time, combined with the flow regulating valve in the pipeline, when drinking water is needed, turn on the water outlet switch, and you can directly drink purified water with the target temperature value.

[0054] Embodiment 1. This embodiment is described using a summer scenario as an example, and the direct drinking machine is initially in a power-off state. Before shutdown, the direct drinking machine sets the outlet water temperature to 4°C, and the real-time temperature of the water-cooled plate is 4°C before power-on. After power-on, the user synchronously sets the outlet water temperature to 4°C. The target temperature of the water-cooled plate is calculated to be -15°C based on the set outlet water temperature of 4°C according to the corresponding water-cooled plate refrigeration model. At this time, the refrigeration module in the direct drinking machine starts to work, and the control display module collects that the temperature value of the water-cooled plate at this time is greater than the target temperature of the water-cooled plate, then controls the refrigeration module to run at full power so that the water-cooled plate is cooled to -15°C and stabilized at this value (this refrigeration time is only 1 / 15 to 1 / 10 of that of the compressor type, and according to test data, it is approximately 30s-90s). Then directly turn on the water outlet switch to collect water. At this time, if the water cooling plate has not reached -15℃, the control and display module will adjust the water flow according to the temperature of the water cooling plate so that the water in the water purification module flows into the water cooling plate through the pipeline and cools to 4℃ before flowing out. The user can drink it directly. If the user sets the temperature and waits for one minute before collecting water for drinking, the control and display module does not need to adjust the water flow, and the user can drink the cooled water directly.

[0055] If the user sets the water outlet temperature to 15°C after power-on, and the target temperature of the water cooling plate is calculated to be 4°C according to the corresponding water cooling plate cooling model, the refrigeration module is controlled to operate so that the water cooling plate temperature remains at 4°C. The user turns on the water outlet switch and the water can be drunk directly.

[0056] Embodiment 2. This embodiment is described using a winter scenario as an example, and the direct drinking machine is initially in a power-off state. Before shutdown, the direct drinking machine sets the outlet water temperature to 45°C, and the real-time temperature of the water-cooled plate is 4°C before power-on. After power-on, the user synchronously sets the outlet water temperature to 45°C. The target temperature of the water-cooled plate is calculated to be 80°C based on the set outlet water temperature of 45°C and the corresponding water-cooled plate heating model. The refrigeration module in the direct drinking machine starts working, and the control display module collects that the temperature of the water-cooled plate at this time is less than the target temperature of the water-cooled plate. The current input direction of the semiconductor refrigeration sheet is adjusted according to the algorithm, and the refrigeration module is controlled to heat at full power to heat the water-cooled plate to 80°C and stabilize at this value (this heating time is only about 1 / 2 of the electric heating wire heating method, and according to test data, it is about 50s-120s). Then directly turn on the water outlet switch to collect water. At this time, if the water cooling plate has not reached 80℃, the control module will adjust the water flow according to the temperature of the water cooling plate so that the water in the water purification module flows into the water cooling plate through the pipeline and is heated to 45℃ before flowing out. The user can drink it directly; if the user sets the temperature and waits for one minute before collecting water for drinking, at this time the temperature of the water cooling plate has stabilized at 80℃, the control display module does not need to adjust the water flow, and the user can drink the cooling water directly.

[0057] The initial states of Example 3, Example 1 and Example 2 are all that the direct drinking machine is powered off and turned off. Therefore, after restarting, it is necessary to recalculate the heating temperature or cooling temperature corresponding to the water cooling plate according to the outlet water temperature value; when the direct drinking machine is not powered off and turned off but has been in the state of being powered on and in standby, the direct drinking machine can control the temperature of the water cooling plate according to the outlet water temperature value set by the user to always maintain the corresponding heating temperature or cooling temperature. When the user needs water, the clean water in the water purification module can be passed through the water cooling plate for heat exchange and then flow out, so as to achieve direct drinking of clean water at the target water temperature. At the same time, since there is no water in the water cooling plate during the standby temperature control process, a large number of bacteria are avoided, the frequency of sterilization can be reduced, the cleanliness of daily water purification is greatly improved, and the convenience of users is improved. After resetting the outlet water temperature value during the standby process, the work is performed with reference to Example 1 or Example 2 according to the specific heating mode or cooling mode.

[0058] The above embodiments are further elaborations and illustrations of the present invention for ease of understanding, and are not limitations of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An instant hot and cold drinking machine, characterized in that: The refrigeration module (2) comprises a water-cooling plate (11), one side of the water-cooling plate (11) is bonded to one side of a first semiconductor refrigeration plate (91), and the other side of the first semiconductor refrigeration plate (91) is bonded to a first radiator (61); the other side of the water-cooling plate (11) is bonded to one side of a second semiconductor refrigeration plate (92), and the other side of the second semiconductor refrigeration plate (92) is bonded to a second radiator (62); a water-cooling plate temperature sensor (10) is provided on the water-cooling plate (11); and a heat insulation component is provided between the water-cooling plate (11) and the first radiator (61) and between the water-cooling plate (11) and the second radiator (62).

2. The instant hot and cold drinking machine according to claim 1, characterized in that: The direct drinking machine further comprises a control display module (3), wherein the control display module (3) controls the operation of the refrigeration module (2) and the water purification module (1); The refrigeration module (2) is connected to the water purification module (1) via a water inlet pipeline in the pipeline system (4) and receives water to be changed in temperature; the water cooling plate temperature sensor (19) transmits the temperature data of the water cooling plate (11) to the control display module (3).

3. The instant hot and cold drinking machine according to claim 2, characterized in that: On the water inlet pipeline, a flow regulating valve (41) and a water outlet switch (42) are sequentially arranged in a direction from the water purification module (1) to the refrigeration module (2); The control and display module (3) is connected to the flow regulating valve (41) and the water outlet switch (42) to control the water inlet flow and the opening and closing of the switch.

4. The instant hot and cold drinking machine according to claim 1, 2 or 3, characterized in that: The heat insulation component comprises a first hollow slot heat insulation cotton (81) surrounding the first semiconductor refrigeration plate (91), a second hollow slot heat insulation cotton (82) surrounding the second semiconductor refrigeration plate (92), and a third heat insulation member (7) surrounding the water cooling plate (11); The first empty slot heat insulation cotton (81) and the second empty slot heat insulation cotton (82) have the same contour and are consistent with the contours of the front and back surfaces of the water cooling plate (11).

5. The instant hot and cold drinking machine according to claim 4, characterized in that: The flow channel structure of the water cooling plate (11) includes a serpentine flow channel and a microchannel flow channel; A sensor space is provided on the water cooling plate (11), and a water cooling plate temperature sensor (10) is installed to collect the temperature of the water cooling plate (11).

6. The instant hot and cold drinking machine according to claim 1, 2 or 3, characterized in that: A fan (12) is arranged on the same side of the first radiator (61) and the second radiator (62), and the blade rotation surface of the fan (12) is perpendicular to the front surface or the back surface of the water cooling plate (11); The control and display module (3) is connected to the fan (12).

7. A control method for an instant hot and cold direct drinking machine, applicable to the direct drinking machine according to any one of claims 1 to 6, characterized in that: include: Set the outlet water temperature value, and collect the inlet water temperature value and the temperature value of the water cooling plate in real time; When the outlet water temperature is greater than the inlet water temperature or the ambient temperature, the heating mode is activated to heat the water cooling plate to the heating temperature corresponding to the outlet water temperature. When the outlet water temperature is lower than the inlet water temperature or the ambient temperature, the cooling mode is activated to cool the water cooling plate to the cooling temperature corresponding to the outlet water temperature.

8. The control method of the instant hot and cold drinking machine according to claim 7, characterized in that: The process of obtaining the heating temperature corresponding to the outlet water temperature value includes: Under the condition of constant water inlet flow, based on different water inlet temperature values ​​or ambient temperature, collect several water cooling plate temperatures and their corresponding water outlet temperature values; During the collection process, the water-cooled plate is heated by a semiconductor refrigeration sheet to keep its temperature constant and greater than the outlet water temperature. The collected water-cooling plate temperature and the corresponding outlet water temperature value are fitted to obtain the water-cooling plate heating model.

9. The control method of the instant hot and cold drinking machine according to claim 7, characterized in that: The process of obtaining the refrigeration temperature corresponding to the outlet water temperature value includes: Under the condition of constant water inlet flow, based on different water inlet temperature values ​​or ambient temperature, collect several water cooling plate temperatures and their corresponding water outlet temperature values; During the collection process, the water-cooled plate is cooled by a semiconductor refrigeration sheet to keep the temperature constant and lower than the outlet water temperature. The collected water-cooling plate temperature and the corresponding outlet water temperature value are fitted to obtain the water-cooling plate refrigeration model.

10. A control method for an instant hot and cold drinking machine according to any one of claims 7 to 9, characterized in that: The direct drinking machine also includes a sterilization mode, which heats the water cooling plate through the first semiconductor refrigeration sheet and the second semiconductor refrigeration sheet to perform high-temperature sterilization.

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