Soda water machine

Abstract

The utility model provides a soda water machine, which relates to the technical field of water treatment equipment and comprises a machine body, and a refrigerating system, a gas mixing tank, a carbon dioxide gas cylinder and a cold water tank are arranged in the machine body. The cold water tank is sleeved outside the gas mixing tank to form a water storage cavity, the refrigerating system comprises an evaporator arranged in the cold water tank, and the evaporator is arranged around the outer wall of the gas mixing tank; the gas mixing tank is provided with a gas inlet, a water inlet end and a water outlet end, the carbon dioxide gas cylinder is connected with the gas inlet of the gas mixing tank through a pipeline, a first water pump is connected between the water inlet end and the water outlet end, and the first water pump is configured to pump water in the gas mixing tank out through the water outlet end and send the pumped water back into the gas mixing tank through the water inlet end; the machine body is provided with a first water outlet, and the first water pump is communicated with the first water outlet through a pipeline and used for outputting prepared soda water. Through nested arrangement of the evaporator and the gas mixing tank, the refrigeration process and the gas mixing process are combined, iced soda water is directly output, the manual ice adding step is omitted, and convenience and taste are improved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and more specifically, to a soda water machine. Background Technology

[0002] Soda water is an aqueous solution of sodium bicarbonate, which is weakly alkaline. The sodium bicarbonate can neutralize stomach acid, enhance intestinal absorption, and promote digestion. Iced soda water, in particular, tastes even better. Currently, commercially available water purifiers and other drinking water devices cannot provide soda water. People usually buy bottled soda water from stores. To obtain iced soda water, ice cubes need to be added, which is a relatively cumbersome process and increases the cost. Utility Model Content

[0003] The problem this invention solves is: how to enable household water dispensers to prepare chilled soda water instantly and conveniently, thereby replacing the cumbersome process of purchasing bottled water and manually adding ice, and reducing drinking costs.

[0004] To address the aforementioned problems, this utility model provides a soda water maker, comprising a body, within which a refrigeration system, a mixing tank, a carbon dioxide cylinder, and a cold water tank are disposed. The cold water tank is fitted around the outside of the mixing tank to form a water storage cavity. The refrigeration system includes an evaporator disposed within the cold water tank, the evaporator being arranged around the outer wall of the mixing tank. The mixing tank is provided with an air inlet, a water inlet, and a water outlet. The carbon dioxide cylinder is connected to the air inlet of the mixing tank via a pipeline. A first water pump is connected between the water inlet and the water outlet. The first water pump is configured to draw water from the mixing tank through the water outlet and return the drawn water to the mixing tank through the water inlet. The body is provided with a first water outlet, and the first water pump is connected to the first water outlet via a pipeline for dispensing prepared soda water.

[0005] Optionally, the mixing tank is provided with a first water inlet, the cold water tank is provided with a second water outlet, and a water replenishment pump is provided between the second water outlet and the first water inlet.

[0006] Optionally, the cold water tank is provided with a third water outlet, and the machine body is provided with a second water pump, which is connected to the third water outlet and the first water outlet through a pipeline.

[0007] Optionally, the cold water tank is provided with a second water inlet, and the machine body is provided with a water inlet valve. The second water inlet is connected to the water inlet valve through a pipeline, and the water inlet valve is connected to an external water source through a pipeline.

[0008] Optionally, the outer peripheral wall of the cold water tank is provided with a heat insulation layer.

[0009] Optionally, the cold water tank is equipped with a first water level sensor and a temperature sensor, and the mixing tank is equipped with a second water level sensor.

[0010] Optionally, the inner wall of the mixing tank is provided with turbulence-inducing protrusions, which extend from the top to the bottom of the mixing tank and are distributed in a curved shape.

[0011] Optionally, the water inlet is located on the side wall of the mixing tank, and the water inlet is connected to a water inlet pipe. The portion of the water inlet pipe extending into the mixing tank is inclined radially along the mixing tank so that water flows tangentially into the inner wall of the mixing tank.

[0012] Optionally, the refrigeration system further includes a compressor, a condenser, and an expansion valve. The compressor is connected in sequence to the condenser, the expansion valve, and the evaporator via refrigerant pipes to form a refrigeration circuit. A cooling fan is provided on the outside of the condenser.

[0013] Optionally, the machine body is provided with a main control board, and the surface of the machine body is provided with a control panel. The control panel and the refrigeration system are both electrically connected to the main control board.

[0014] The beneficial effects of this soda water machine are as follows: The mixing tank is connected to a carbon dioxide cylinder through an inlet, injecting carbon dioxide gas into the tank. A first water pump draws water from the mixing tank from the outlet and then returns it to the tank through the inlet, forming a circulation. This circulation process promotes full contact between water and carbon dioxide, increasing gas solubility and forming carbonated water (soda water). A cold water tank is fitted around the outside of the mixing tank to form a water storage cavity, and the evaporator of the refrigeration system is directly surrounding the outer wall of the mixing tank. Through the principle of heat conduction, the evaporator absorbs heat from the water in the mixing tank, achieving rapid cooling. The cooling water in the cold water tank indirectly cools the mixing tank, forming a dual cooling effect (combination of direct contact cooling and heat conduction cooling), ensuring that the water temperature in the mixing tank drops rapidly to an ice-cold state, so that the soda water is cooled while mixing with the gas, achieving an ice-cold effect without the need for additional ice. When water is needed, the first water pump delivers the prepared iced soda water through a pipeline to the first outlet, which the user can drink directly.

[0015] This novel soda water maker combines refrigeration and gas mixing processes through a nested arrangement of an evaporator and a mixing tank, directly outputting iced soda water. This eliminates the need for manual ice addition, improving convenience and taste. The cold water tank acts as a heat exchange medium, preventing icing and blockage issues that might occur with direct refrigeration within the mixing tank, ensuring stable system operation. The first water pump increases the contact time and pressure between water and carbon dioxide, enhancing gas dissolution efficiency and resulting in finer bubbles and a better taste. Furthermore, the on-demand preparation mode ensures the freshness of the soda water, and the finished product temperature and bubble concentration can be controlled by adjusting the refrigeration intensity or gas injection volume to meet individual needs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0017] Figure 2 This is a partial structural diagram of one embodiment of the present utility model;

[0018] Figure 3 This is a partial structural diagram of a gas mixing tank according to one embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the body of one embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Main body; 11. First water outlet; 12. Second water pump; 13. Inlet valve; 14. Main control board; 15. Control panel; 16. Make-up water pump; 2. Refrigeration system; 21. Evaporator; 22. Compressor; 23. Condenser; 24. Expansion valve; 25. Cooling fan; 3. Mixing tank; 31. Air inlet; 32. Water inlet; 33. Water outlet; 34. First water pump; 35. First water inlet; 36. Second water level sensor; 37. Baffle ridge; 38. Inlet pipe; 4. Carbon dioxide cylinder; 5. Cold water tank; 51. Second water outlet; 52. Third water outlet; 53. Insulation layer; 54. First water level sensor; 55. Temperature sensor. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0023] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0024] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0025] like Figure 1 , Figure 2 As shown in the figure, the present invention provides a soda water machine, including a body 1, a refrigeration system 2, a mixing tank 3, a carbon dioxide cylinder 4, and a cold water tank 5 inside the body 1; the cold water tank 5 is fitted outside the mixing tank 3 to form a water storage cavity; the refrigeration system 2 includes an evaporator 21 disposed inside the cold water tank 5, and the evaporator 21 is arranged around the outer wall of the mixing tank 3; the mixing tank 3 is provided with an air inlet 31, a water inlet 32, and a water outlet 33; the carbon dioxide cylinder 4 is connected to the air inlet 31 of the mixing tank 3 through a pipeline; a first water pump 34 is connected between the water inlet 32 ​​and the water outlet 33; the first water pump 34 is configured to draw water from the mixing tank 3 through the water outlet 33 and send the drawn water back into the mixing tank 3 through the water inlet 32; the body 1 is provided with a first water outlet 11, and the first water pump 34 is connected to the first water outlet 11 through a pipeline for outputting prepared soda water.

[0026] Specifically, the main body 1 serves as the supporting and housing structure for the entire equipment, providing installation space for various internal components. The main body 1 houses a refrigeration system 2, a mixing tank 3, a carbon dioxide cylinder 4, and a cold water tank 5. The cold water tank 5 is fitted around the mixing tank 3, forming a water storage cavity, allowing the water in the cold water tank 5 to fully contact the mixing tank 3 for efficient heat exchange. The refrigeration system 2 includes an evaporator 21 located within the cold water tank 5. The evaporator 21 surrounds the outer wall of the mixing tank 3. Through heat conduction, the evaporator 21 absorbs heat from the water in the mixing tank 3, achieving rapid cooling. Furthermore, through the cooling effect of the evaporator 21, heat is absorbed from the water in the cold water tank 5, indirectly cooling the mixing tank 3, creating a dual cooling effect to ensure the water temperature in the mixing tank 3 quickly drops to a chilled state. The mixing tank 3 is equipped with an air inlet 31, a water inlet 32, and a water outlet 33. Carbon dioxide cylinder 4 is connected to the inlet 31 of mixing tank 3 via a pipeline, delivering carbon dioxide gas into mixing tank 3 to provide raw materials for the preparation of soda water. A first water pump 34 is connected between the water inlet 32 ​​and the water outlet 33. The first water pump 34 is configured to draw water from mixing tank 3 through the water outlet 33 and return the drawn water to mixing tank 3 through the water inlet 32, forming a circulating water flow to promote the thorough mixing of carbon dioxide and water, completing gas mixing while cooling. In this embodiment, both mixing tank 3 and cold water tank 5 are provided with water inlets for injecting water into mixing tank 3 and cold water tank 5 respectively. The main body 1 is provided with a first water outlet 11, and the first water pump 34 is connected to the first water outlet 11 via a pipeline. When the soda water is prepared, the first water pump 34 starts, delivering the prepared soda water in mixing tank 3 to the first water outlet 11 via the pipeline for user consumption.

[0027] In this embodiment, the soda water machine integrates a refrigeration system 2, which can directly cool water inside the device. Combined with the function of the mixing tank 3 in preparing soda water, it can conveniently prepare iced soda water without the need for users to add ice cubes, reducing drinking costs and improving ease of use. Furthermore, the first water pump 34 circulates and pumps water out of the mixing tank 3 and back in, forming a circulating water flow. This ensures that carbon dioxide gas and water are fully mixed, increasing the solubility of carbon dioxide in water and ensuring stable quality and good taste of the prepared soda water. Moreover, the cold water tank 5 is fitted around the outside of the mixing tank 3 to form a water storage cavity, and the evaporator 21 of the refrigeration system 2 is arranged around the outer wall of the mixing tank 3, making the entire device structure compact. The refrigeration system 2 can cool the water in the mixing tank 3 more directly and efficiently, improving the overall performance and refrigeration efficiency of the device.

[0028] Optionally, such as Figure 1 , Figure 2 As shown, the mixing tank 3 is provided with a first water inlet 35, the cold water tank 5 is provided with a second water outlet 51, and a water replenishment pump 16 is provided between the second water outlet 51 and the first water inlet 35.

[0029] Specifically, in this embodiment, the cold water tank 5 serves as a container for storing water used for cooling, and it is equipped with a second outlet 51; the mixing tank 3 serves as the core container for preparing soda water, and it is equipped with a first inlet 35. The second outlet 51 is connected to the first inlet 35 via a water replenishment pump 16, thus forming a water transport channel from the cold water tank 5 to the mixing tank 3. When water needs to be added to the mixing tank 3 to prepare soda water, the water in the cold water tank 5 flows out from the second outlet 51 of the cold water tank 5 under the action of the water replenishment pump 16, and is transported through the pipeline to the first inlet 35 of the mixing tank 3, and then enters the mixing tank 3, providing a water source for the subsequent mixing of carbon dioxide and water to prepare soda water.

[0030] In this optional embodiment, the water in the cold water tank 5 can be used directly as the water source for the mixing tank 3 while cooling the mixing tank 3, thus achieving rational utilization of resources and improving the space utilization efficiency and water resource utilization efficiency of the entire soda water machine. Moreover, since the water in the cold water tank 5, after being cooled by the evaporator 21, is used as the water source for the mixing tank 3, the mixing tank 3 does not need to start cooling from room temperature, avoiding the additional energy consumption of separately cooling the water source in the mixing tank 3, and saving energy consumption and cooling time of the refrigeration system 2.

[0031] Optionally, such as Figure 1 , Figure 2 As shown, the cold water tank 5 is provided with a third water outlet 52, and the machine body 1 is provided with a second water pump 12. The second water pump 12 is connected to the third water outlet 52 and the first water outlet 11 through a pipeline.

[0032] Specifically, when cold water needs to be obtained directly from the cold water tank 5 (e.g., the user doesn't want to drink soda water and only wants cold water) or when it is necessary to accelerate the flow of water from the cold water tank 5 to other possible locations (e.g., bypassing the mixing tank 3 to supply water directly in special circumstances), the second water pump 12 is activated. The second water pump 12 uses its own suction to draw water from the cold water tank 5 out of the third outlet 52 and deliver it through the pipeline to the first outlet 11, from which the user can then obtain cold water.

[0033] This optional embodiment increases the functionality of the soda water machine. Besides preparing soda water, users can also directly obtain cold water, meeting diverse user needs. For example, in hot weather, some users may only want a glass of ice-cold water. In this case, the second water pump 12 can directly deliver the cold water from the cold water tank 5 to the first outlet 11 without starting the soda water preparation process. This improves the flexibility of water delivery. In some special cases, if the mixing tank 3 malfunctions or soda water preparation is temporarily not needed, but the user still requires cold water, the second water pump 12 can directly deliver water from the cold water tank 5 to the first outlet 11, avoiding the awkward situation of not being able to obtain cold water due to a problem with the mixing tank 3. It also facilitates future functional upgrades and expansions, such as adding other functional modules to the pipeline to achieve more types of water treatment and delivery. Furthermore, it makes full use of the water resources in the cold water tank 5. Originally, the cold water tank 5 was mainly used to cool the mixing tank 3 and supply water to the mixing tank 3 to prepare soda water. However, by setting up the second water pump 12, the water in the cold water tank 5 can be effectively utilized when it is not needed to prepare soda water, thus avoiding the waste of water resources and improving the resource utilization efficiency of the entire soda water machine.

[0034] Optionally, such as Figure 1 As shown, the cold water tank 5 is equipped with a second water inlet, and the machine body 1 is equipped with a water inlet valve 13. The second water inlet is connected to the water inlet valve 13 through a pipeline, and the water inlet valve 13 is connected to an external water source through a pipeline.

[0035] Specifically, in this embodiment, the cold water tank 5 serves as a container for storing water used for cooling and supplying water, and it is equipped with a second water inlet. The water inlet valve 13 installed inside the body 1 controls the flow of water. The second water inlet is connected to the water inlet valve 13 via a pipeline, and the water inlet valve 13 is connected to an external water source (such as a tap water pipe) via a pipeline. When the water level in the cold water tank 5 drops to a certain level and water needs to be added, the user or the equipment's control system operates the water inlet valve 13 to open. At this time, water from the external water source, under its own water pressure, enters the water inlet valve 13 through the pipeline connected to the water inlet valve 13, and then flows into the cold water tank 5 from the second water inlet through the pipeline between the water inlet valve 13 and the second water inlet, thereby realizing automatic or manual water replenishment to the cold water tank 5, ensuring that there is enough water in the cold water tank 5 for cooling the mixing tank 3 and subsequent possible water supply needs.

[0036] In this optional embodiment, by setting a second water inlet, an inlet valve 13, and connecting to an external water source, the cold water tank 5 can achieve an automatic water replenishment function. Users do not need to constantly monitor the water level in the cold water tank 5 and manually add water. When the water level drops, simply opening the inlet valve 13 (which can be done manually or automatically controlled by the equipment) will automatically allow water to flow into the cold water tank 5, greatly improving convenience and saving users time and effort. Furthermore, a sufficient supply of cold water is crucial for the normal operation of the soda water machine. Ensuring that the cold water tank 5 always has enough water, whether for cooling the mixing tank 3 to prepare ice soda water or directly providing cold water to users via the second water pump 12, prevents equipment malfunction due to water shortage, extends the equipment's lifespan, and improves its reliability.

[0037] Optionally, such as Figure 2 As shown, the outer peripheral wall of the cold water tank 5 is provided with a heat insulation layer 53.

[0038] Specifically, when the refrigeration system 2 cools the water in the cold water tank 5, the insulation layer 53 on the outer wall of the cold water tank 5 effectively prevents heat from the external environment from being transferred into the cold water tank 5, so that the water in the cold water tank 5 can maintain a low temperature for a long time, providing a continuous and stable low temperature environment for the preparation of ice soda water, etc.

[0039] In this optional embodiment, since the insulation layer 53 can effectively reduce the loss of cold energy in the cold water tank 5, the refrigeration system 2 does not need to be started frequently to maintain the low temperature in the cold water tank 5, thereby reducing the energy consumption of the refrigeration system 2, extending the service life of the refrigeration equipment, and saving users operating costs, which is in line with the concept of energy conservation and environmental protection.

[0040] Optionally, such as Figure 2 As shown, the cold water tank 5 is equipped with a first water level sensor 54 and a temperature sensor 55, and the mixing tank 3 is equipped with a second water level sensor 36.

[0041] Specifically, a first water level sensor 54 is installed inside the cold water tank 5 to monitor the water level in the tank in real time. When the water level in the cold water tank 5 changes, the first water level sensor 54 can detect this change and convert the water level information into an electrical signal. For example, when the water level rises or falls to a preset specific water level point, the sensor will output a corresponding signal. A temperature sensor 55 is also installed inside the cold water tank 5, and its main function is to detect the temperature of the water inside the tank. The temperature sensor 55 generates different electrical signals according to changes in water temperature, and these signals can accurately reflect the real-time temperature of the water in the cold water tank 5. Through this sensor, the cooling effect of the refrigeration system 2 on the water in the cold water tank 5 can be understood in a timely manner. A second water level sensor 36 is arranged inside the mixing tank 3 to monitor the water level inside the mixing tank 3. During the preparation of soda water, the water level in the mixing tank 3 needs to be maintained within a suitable range to ensure that carbon dioxide and water can be fully mixed. The second water level sensor 36 senses the water level in the mixing tank 3 in real time and outputs the water level information in the form of an electrical signal.

[0042] In this optional embodiment, the first water level sensor 54 and the second water level sensor 36 can provide real-time feedback on the water level information in the cold water tank 5 and the mixing tank 3. By connecting to the equipment control system, the opening and closing of the inlet valve 13 (mentioned in the preceding claims) can be automatically controlled according to a preset water level threshold, achieving precise control of the water level in the cold water tank 5 and preventing water shortage or overflow. Simultaneously, the operating status of the first water pump 34 (mentioned in the preceding claims) can be adjusted according to the water level in the mixing tank 3 to ensure a suitable water level and guarantee the stability and safety of the soda water preparation process. The temperature sensor 55 monitors the water temperature in the cold water tank 5 in real time, enabling the equipment to adjust the operating intensity of the refrigeration system 2 according to the actual temperature. When the water temperature reaches the set temperature, the operating power of the refrigeration system 2 can be reduced or it can be stopped to avoid excessive cooling and energy waste. When the water temperature is too high, the cooling effect is enhanced in time to ensure that the cold water tank 5 always provides water at a suitable temperature to meet the needs of preparing ice soda water.

[0043] Optionally, such as Figure 2 As shown, the inner wall of the mixing tank 3 is provided with turbulence protrusions 37, which extend from the top to the bottom of the mixing tank 3 and are distributed in a curved shape.

[0044] Specifically, when carbon dioxide gas and cold water simultaneously enter the mixing tank 3, the turbulence-inducing protrusions 37 on the inner wall of the mixing tank 3, which extend from the top to the bottom of the mixing tank 3 in a curved pattern, will interfere with the fluid (the mixture of carbon dioxide gas and water) inside the tank. As the fluid flows along the inner wall of the mixing tank 3, the curved turbulence-inducing protrusions 37 will change the flow direction and velocity of the fluid. The originally relatively stable laminar flow state will be broken, and the fluid will form turbulence as it passes through the turbulence-inducing protrusions 37. In the turbulent state, more intense mixing and collisions occur between different parts of the fluid, allowing the carbon dioxide gas to come into more complete contact with the water, increasing the chance of carbon dioxide dissolving in the water. At the same time, the turbulence-inducing protrusions 37, extending from the top to the bottom, ensure effective turbulence of the fluid throughout the entire height range of the mixing tank 3, further improving the mixing efficiency of carbon dioxide and water.

[0045] In this optional embodiment, the baffle 37 significantly increases the contact area and contact time between carbon dioxide gas and water, promoting their mixing. Compared to the mixing tank 3 without the baffle 37, the mixing of gas and water is faster and more thorough, enabling the preparation of soda water that meets the requirements in a shorter time, thus improving the efficiency of soda water preparation. Thorough mixing ensures more uniform dissolution of carbon dioxide in the water, reducing bubble aggregation and stratification. The resulting soda water has a smoother, more uniform taste, and the carbon dioxide distribution in the water is more stable, preventing localized areas with too many or too few bubbles.

[0046] Optionally, such as Figure 3 As shown, the water inlet 32 ​​is located on the side wall of the mixing tank 3, and the water inlet 32 ​​is connected to the water inlet pipe 38. The portion of the water inlet pipe 38 that extends into the mixing tank 3 is arranged radially inclined so that the water flows tangentially into the inner wall of the mixing tank 3.

[0047] Specifically, according to the principles of fluid mechanics, when water enters the mixing tank 3 tangentially, it creates a rotating water flow inside the tank. This rotating water flow can move the existing fluids inside the tank (such as a mixture of carbon dioxide gas and water), enhancing the turbulence of the fluids inside the tank. At the same time, the tangentially flowing water flows along the inner wall of the tank, making full use of the space inside the tank and making the water flow more evenly distributed within the tank. This avoids the water flow directly impacting other components or local areas inside the tank, reducing the impact and wear on the internal structure of the tank.

[0048] In this optional embodiment, the tangentially flowing water creates a rotating motion that promotes more thorough mixing of carbon dioxide gas and water. The rotating water flow increases the contact area and time between the gas and water, making it easier for carbon dioxide to dissolve in the water, thus improving the efficiency and quality of soda water preparation. Furthermore, the water flows tangentially along the inner wall of the tank, preventing direct impact on the bottom or other components of the mixing tank 3, reducing wear and noise caused by water flow impact, extending the service life of the mixing tank 3 and related components, and lowering equipment maintenance costs.

[0049] Optionally, such as Figure 1 , Figure 2 As shown, the refrigeration system 2 also includes a compressor 22, a condenser 23 and an expansion valve 24. The compressor 22 is connected to the condenser 23, the expansion valve 24 and the evaporator 21 in sequence through refrigerant pipes to form a refrigeration circuit. A cooling fan 25 is provided on the outside of the condenser 23.

[0050] Specifically, compressor 22 is the power source of refrigeration system 2. It draws in low-temperature, low-pressure gaseous refrigerant from evaporator 21 and compresses it into high-temperature, high-pressure gaseous refrigerant. After entering condenser 23, the high-temperature, high-pressure gaseous refrigerant exchanges heat with the outside air brought in by cooling fan 25 on the outside of condenser 23. Cooling fan 25 accelerates airflow, allowing the refrigerant to transfer heat to the outside air more quickly, while condensing itself into high-temperature, high-pressure liquid refrigerant. When the high-temperature, high-pressure liquid refrigerant passes through expansion valve 24, its pressure and temperature drop sharply due to the throttling effect of expansion valve 24, becoming low-temperature, low-pressure wet vapor. Expansion valve 24 provides a suitable refrigerant state for evaporator 21 by controlling the flow and pressure of the refrigerant. After entering evaporator 21, the low-temperature, low-pressure wet vapor refrigerant absorbs heat from the surrounding environment (water in cold water tank 5 and water in mixing tank 3), thus evaporating into low-temperature, low-pressure gaseous refrigerant. During this process, the water in the cold water tank 5 and the water in the mixing tank 3 are cooled, achieving a refrigeration effect. Afterwards, the gaseous refrigerant is drawn back into the compressor 22, starting the next refrigeration cycle. The cooling fan 25 continuously blows air onto the condenser 23, enhancing convective heat transfer between the condenser 23 and the outside air, thus improving the heat dissipation efficiency of the condenser 23.

[0051] In this optional embodiment, the compressor 22, condenser 23, expansion valve 24, and evaporator 21 work together to quickly and stably reduce the temperature of the water in the mixing tank 3, meeting the soda water machine's requirement for a low-temperature water source, thereby ensuring that the prepared soda water has an ideal taste. The cooling fan 25 ensures that the condenser 23 can dissipate heat in a timely and effective manner, allowing the refrigeration system 2 to maintain stable performance during long-term operation.

[0052] Optionally, such as Figure 1 , Figure 4As shown, the main control board 14 is installed inside the machine body 1, and the control panel 15 is installed on the surface of the machine body 1. The refrigeration system 2, the mixing tank 3, the carbon dioxide cylinder 4 and the cold water tank 5 described in the control panel 15 are all electrically connected to the main control board 14.

[0053] Specifically, the main control board 14 serves as the core control unit of the entire soda water machine, with various control programs and logic preset internally. When the user operates the machine through the control panel 15 on the surface of the machine body 1, for example, by setting the soda water preparation parameters (such as cooling temperature, carbon dioxide concentration, etc.), the control panel 15 converts the user's input commands into electrical signals and transmits these electrical signals to the main control board 14. After receiving the signals from the control panel 15, the main control board 14 coordinates the control of the refrigeration system 2, the mixing tank 3, the carbon dioxide cylinder 4, and the cold water tank 5 according to the preset program. Refrigeration system 2: The main control board 14 can control the start and stop of the compressor 22, the speed of the cooling fan 25, and the opening of the expansion valve 24 according to the cooling temperature set by the user, thereby adjusting the cooling power of the refrigeration system 2 so that the water temperature in the cold water tank 5 reaches the set value. Mixing tank 3: By controlling the valves, pumps, and other components related to the mixing tank 3, the main control board 14 can adjust parameters such as the amount of carbon dioxide and water entering, and the mixing time to ensure that carbon dioxide and water are fully mixed to prepare soda water that meets the requirements. Carbon dioxide cylinder 4: The main control board 14 can control the connection valve between the carbon dioxide cylinder 4 and the mixing tank 3, precisely controlling the release amount and release time of carbon dioxide gas according to the needs of preparing soda water. Cold water tank 5: The main control board 14 can monitor parameters such as water level and water temperature in the cold water tank 5 in real time, and control the opening and closing of the inlet valve 13 and the operation of the refrigeration system 2 based on these parameters, ensuring that there is always sufficient and appropriately sized cold water in the cold water tank 5 for the preparation of soda water.

[0054] In this optional embodiment, the user can complete the setting and control of various functions of the soda water machine by simply operating the control panel 15 on the surface of the machine body 1, without having to manually adjust the complex internal parts of the machine, which greatly improves the convenience of use.

[0055] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A soda maker, characterized in that, The system includes a body (1), which contains a refrigeration system (2), a mixing tank (3), a carbon dioxide cylinder (4), and a cold water tank (5). The cold water tank (5) is fitted around the outside of the mixing tank (3) to form a water storage chamber. The refrigeration system (2) includes an evaporator (21) installed inside the cold water tank (5), which surrounds the outer wall of the mixing tank (3). The mixing tank (3) has an air inlet (31), a water inlet (32), and a water outlet (33). The carbon dioxide cylinder (4) is connected to the mixing tank (3) via a pipe. The pipeline is connected to the air inlet (31) of the mixing tank (3), and a first water pump (34) is connected between the water inlet (32) and the water outlet (33). The first water pump (34) is configured to draw water from the mixing tank (3) through the water outlet (33) and send the drawn water back to the mixing tank (3) through the water inlet (32). The machine body (1) is provided with a first water outlet (11), and the first water pump (34) is connected to the first water outlet (11) through a pipeline for outputting prepared soda water.

2. The soda maker according to claim 1, characterized in that, The mixing tank (3) is provided with a first water inlet (35), the cold water tank (5) is provided with a second water outlet (51), and a water replenishment pump (16) is provided between the second water outlet (51) and the first water inlet (35).

3. The soda maker according to claim 2, characterized in that, The cold water tank (5) is provided with a third water outlet (52), and the machine body (1) is provided with a second water pump (12). The second water pump (12) is connected to the third water outlet (52) and the first water outlet (11) through a pipeline.

4. The soda maker according to claim 1, characterized in that, The cold water tank (5) is provided with a second water inlet, and the machine body (1) is provided with a water inlet valve (13). The second water inlet is connected to the water inlet valve (13) through a pipeline, and the water inlet valve (13) is connected to an external water source through a pipeline.

5. The soda maker according to claim 1, characterized in that, The outer peripheral wall of the cold water tank (5) is provided with a heat insulation layer (53).

6. The soda maker according to claim 1, characterized in that, The cold water tank (5) is equipped with a first water level sensor (54) and a temperature sensor (55), and the mixing tank (3) is equipped with a second water level sensor (36).

7. The soda maker according to claim 1, characterized in that, The inner wall of the mixing tank (3) is provided with turbulence protrusions (37), which extend from the top to the bottom of the mixing tank (3) and are distributed in a curved shape.

8. The soda maker according to claim 7, characterized in that, The water inlet (32) is provided on the side wall of the mixing tank (3). The water inlet (32) is connected to a water inlet pipe (38). The portion of the water inlet pipe (38) extending into the mixing tank (3) is inclined radially along the mixing tank (3) so that water flows tangentially along the inner wall of the mixing tank (3).

9. The soda maker according to claim 1, characterized in that, The refrigeration system (2) also includes a compressor (22), a condenser (23) and an expansion valve (24). The compressor (22) is connected to the condenser (23), the expansion valve (24) and the evaporator (21) in sequence through a refrigerant pipe to form a refrigeration circuit. A cooling fan (25) is provided on the outside of the condenser (23).

10. The soda maker according to any one of claims 1-9, characterized in that, The main control board (14) is provided inside the body (1), and the control panel (15) is provided on the surface of the body (1). The control panel (15) and the refrigeration system (2) are both electrically connected to the main control board (14).

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