CN111595056A - Drinking liquid refrigeration equipment - Google Patents

Abstract

The invention belongs to the technical field of refrigeration, and discloses drinking liquid refrigeration equipment which comprises a machine shell provided with a liquid feeding port and a liquid feeding port, wherein a storage container, a refrigeration transfer part, a liquid driving device, a semiconductor refrigeration chip and a hot end radiator are arranged in the machine shell; the liquid drive means is adapted to direct the heat convection movement of the drinking liquid and to create local turbulence in a part-area of the drinking liquid. The refrigeration equipment disclosed by the invention not only can effectively improve the refrigeration efficiency and the refrigeration capacity, but also is uniform in refrigeration temperature, and the user experience is improved.

Description

A kind of drinking liquid refrigeration equipment

technical field

The invention belongs to the technical field of refrigeration, and in particular relates to a drinking liquid refrigeration device.

Background technique

In the existing beverage supply equipment, most of the cold water is provided by semiconductor refrigeration. The drinking liquid is refrigerated through the cold end of the semiconductor refrigeration chip. This refrigeration method has the advantages of no refrigerant, more environmental protection, low noise, light weight, convenient installation and high production process, but the disadvantage is that the refrigeration capacity is low. Its cooling capacity is not only affected by the characteristics of its own chip, but also seriously affected by the heat transfer performance of the cold end and the heat dissipation performance of the hot end. A more prominent problem is that the existing beverage supply equipment often cannot be cooled quickly, requiring users to wait for a long time.

The application of semiconductor refrigeration technology has been relatively extensive and mature, but the above technical problems have not been effectively solved. In order to solve this technical problem, technicians in related fields have carried out long-term research and research. For example, the Chinese invention patent application with publication number CN1093456A discloses a portable semiconductor self-circulating cold drink machine, in order to improve the cooling efficiency, the cold drink passes through a cold room inside a water storage tank, wherein the turbine of the cold pump (ie the inlet and the outlet) Both are installed at the bottom of the storage tank, and the outlet of the cold chamber is also located at the bottom of the storage tank. Although the application date of the invention patent application is relatively early, the technical improvement made should be said to be relatively large, but it has been proved by actual use that the refrigeration efficiency of this cold drink machine is still not ideal. Some cold drinks were taken, and the rest were drinking liquids at room temperature or warm, which made the taste very uncomfortable, and it was difficult to achieve a relatively good user experience.

The above-mentioned technical problems cannot be solved for a long time. Although those skilled in the art analyze the factors that cause the low refrigeration efficiency of various semiconductor refrigeration and beverage supply equipment, there are different opinions, and it has been impossible to effectively analyze a reasonable and scientific technical solution, so that it has become one of the technical bottlenecks in this field. , and even some technicians give up the above advantages of semiconductor chip refrigeration technology, because they cannot effectively overcome and turn to other refrigeration technologies.

That is to say, in the current semiconductor refrigeration technology, low refrigeration capacity, untimely refrigeration and uneven temperature have become prominent and long-term unsolvable technical problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a drinking liquid refrigeration device, which can not only effectively improve refrigeration efficiency and refrigeration capacity, but also uniform refrigeration temperature and improve user experience.

In order to achieve the above purpose, the present invention provides a drinking liquid refrigeration equipment, including a casing provided with a liquid filling port and a drinking water supply port, and the casing is provided with a storage container, a refrigeration transfer part, a liquid driving device, and a semiconductor refrigeration chip. and a hot end radiator, the hot end radiator is in contact with the hot end of the semiconductor refrigeration chip, and the refrigeration transfer part is in contact with the cold end of the semiconductor refrigeration chip;

The liquid driving device is adapted to guide the thermal convection movement of the drinking liquid, and is adapted to form local turbulence in a partial area of the drinking liquid.

Preferably, the refrigeration transfer part is provided as a liquid-cooled heat exchange unit independent of the storage container, and the liquid-cooled heat exchange unit, the storage container and the liquid drive device are connected by connecting pipes to form a closed-loop circulation The liquid path, the drinking liquid movement track formed in the circulating liquid path can guide the thermal convection movement of the drinking liquid, and the drinking liquid is suitable for forming the local turbulent flow in the local area of the drinking liquid movement track.

Preferably, the liquid-cooled heat exchange unit is fixedly arranged on one side of the storage container, and the liquid-cooled heat exchange unit includes a heat exchange fin and a shell; one side of the heat exchange fin is provided with a chip contact area, and the other One side is provided with first turbulent fins for forming the local turbulent flow; the shell includes a heat exchange inlet, a heat exchange outlet and a heat exchange cavity that communicate with each other; the heat exchange fins are sealed and fixed to the shell , and the first spoiler fins are located in the heat exchange cavity.

Preferably, an inlet baffle for forming the local turbulent flow is provided in the heat exchange cavity near the heat exchange inlet.

Preferably, the upper part of the storage container is provided with a storage container inlet, and the lower part of the storage container is provided with a storage container outlet, so as to be formed by the impact of drinking liquid generated by the height difference between the storage container inlet and the storage container outlet the local turbulence.

Preferably, the refrigeration transfer part is configured as a cooling member mounted on the storage container or formed integrally with the storage container, and the heat absorbing surface of the cooling member is exposed to the inner cavity of the storage container.

Preferably, both the suction port and the pump outlet of the liquid driving device are located in the inner cavity of the storage container, wherein the suction port faces the cooling conductor, so as to be suitable for guiding the conductor during operation. Part of the drinking liquid around the cooling element forms a thermal convective movement away from the cooling element, and at the same time guides part of the drinking liquid in other areas in the storage container to form a thermal convective motion toward the cooling element.

Preferably, the cooling member includes a cooling guide plate and a second turbulence fin located on the inner surface of the cooling guide plate, and the second turbulence fin protrudes into the inner cavity of the storage container.

Preferably, it also includes a temperature sensor and a temperature control module, the temperature sensor is arranged in the storage container, the temperature control module is connected with the temperature sensor, the liquid driving device, the hot end radiator and the The semiconductor refrigeration chip is electrically connected to control the working state of the liquid driving device, the hot end radiator and the semiconductor refrigeration chip according to the temperature signal detected by the temperature sensor.

Preferably, the temperature control module includes a temperature control panel, a control unit and a refrigeration power supply unit; the temperature control panel is integrated with a display screen, a temperature control button and a power switch, and the control unit is adapted to receive the temperature control The information input by the panel and the information detected by the temperature sensor, and control the operation of the temperature control panel, the hot end radiator, the liquid driving device and the refrigeration power supply unit, and the refrigeration power supply unit is suitable for generating The working power supply of the semiconductor refrigeration chip.

Preferably, the control unit is adapted to control the refrigeration power supply unit to cut off the power supply to the semiconductor refrigeration chip when the temperature of the drinking liquid reaches a set temperature, and restore the power supply to the semiconductor refrigeration chip when the temperature of the drinking liquid is higher than the set temperature The power supply of the semiconductor refrigeration chip.

Preferably, the control unit is adapted to cut off the power supply of the hot end radiator and the liquid driving device while cutting off the power supply of the semiconductor refrigeration chip.

Preferably, an insulating layer is provided on the outer periphery of the storage container, and the refrigeration transfer part is located in the insulating layer.

Preferably, the casing is also provided with an air inlet and an air outlet, the hot end radiator is an air-cooled radiator or a water-cooled radiator or a heat pipe radiator with a fan, and the fan is arranged at the air outlet where the air inlet is located at the bottom of the casing.

The drinking liquid refrigeration device of the present invention makes the drinking liquid to be cooled move continuously and contacts the cooling transfer part, and at the same time controls the movement trajectory of the drinking liquid relatively accurately, so that the movement of the drinking liquid conforms to and strengthens its thermal convection movement, and when the drinking liquid moves At least one local turbulent flow is artificially formed on the movement trajectory of the cooling device, which enhances the diffusion of cold energy and the mixing of the drinking liquid, improves the cooling efficiency, and makes the temperature of the drinking liquid uniform. Tests have confirmed that the drinking liquid refrigeration equipment of the present invention forms and promotes forced convection heat transfer of the drinking liquid by controlling the continuous movement of the drinking liquid in different areas in the storage container and contacting the refrigeration transfer part, thereby effectively improving the refrigeration efficiency and making the drinking liquid The temperature of the drinking liquid decreases rapidly, the forced convection heat transfer coefficient of the drinking liquid reaches 1000-15000W/(m ² ·℃), the cooling efficiency is significantly improved, the cooling is rapid, and the temperature of the drinking liquid in the storage container remains uniform, and the bottom temperature will not be generated. The phenomenon of low temperature and high top temperature effectively improves the user experience.

The refrigeration equipment of the present invention is simple and practical, with relatively low cost, and can be generally applied to drinking equipment such as water dispensers, cold drink dispensers, juice dispensers and the like.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings constituting a part of the present invention are used to provide further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

In the attached image:

1 is a schematic structural diagram of a drinking liquid refrigeration device according to a specific embodiment of the present invention;

2 is a schematic structural diagram of a liquid-cooled heat exchange unit in a specific embodiment of the present invention;

3 is a schematic structural diagram of a drinking liquid refrigeration device according to another specific embodiment of the present invention;

FIG. 4 is a block diagram of the connection between the temperature control module and other components in the drinking liquid refrigeration equipment according to another specific embodiment of the present invention.

Description of reference numerals

1 Chassis 11 Filling port

12 Drinking Port 13 Air Inlet

14 air outlet 2 storage container

21 Storage container inlet 22 Storage container outlet

23 Insulation layer 3 Liquid driving device

31 Pump outlet 32 Suction port

33 Motor 34 Pump body

4 hot end radiator 41 fan

5 Semiconductor refrigeration chip 6 Refrigeration transfer part

61 Heat Exchanger 611 Chip Contact Area

612 first spoiler fin 62 shell

621 heat exchange inlet 622 heat exchange outlet

623 heat exchange chamber 624 inlet baffle

63 Cold guide plate 64 Second spoiler fin

7 Connecting pipes 8 Temperature sensor

9 Temperature Control Module 91 Temperature Control Panel

92 Control unit 93 Refrigeration power unit

Detailed ways

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top", "bottom", etc. are based on those shown in the accompanying drawings The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or a An integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

The present invention provides a drinking liquid refrigeration equipment, including a casing 1 provided with a liquid filling port 11 and a drinking water supply port 12, the casing 1 is provided with a storage container 2, a refrigeration transfer part 6, a liquid driving device 3, a semiconductor Refrigeration chip 5 and hot end radiator 4, the hot end radiator 4 is in contact with the hot end of the semiconductor refrigeration chip 5, and the refrigeration transfer part 6 is in contact with the cold end of the semiconductor refrigeration chip 5;

The liquid driving device 3 is suitable for guiding the thermal convection movement of the drinking liquid, and is suitable for forming a local turbulent flow in a partial area of the drinking liquid.

When the drinking liquid refrigeration device of the present invention is in operation, the heat of the drinking liquid is exchanged to the cold end of the semiconductor refrigeration chip 5 through the refrigeration transfer part 6, and the cold end of the semiconductor refrigeration chip 5 absorbs the heat of the drinking liquid, and passes through with the semiconductor refrigeration chip. 5. The hot end radiator 4 in contact with the hot end releases the absorbed heat, and at the same time forms and promotes the thermal convection movement of the drinking liquid through the liquid driving device 3, and at the same time artificially forms at least one local turbulent flow on the movement trajectory of the drinking liquid , which can enhance the temperature diffusion, improve the cooling efficiency, and avoid the phenomenon of uneven cooling effect of the drinking liquid in the storage container 2, thereby improving the uniformity of the drinking liquid temperature.

In a specific embodiment, as shown in FIG. 1 , the refrigeration transfer part 6 is set as a liquid-cooled heat exchange unit independent of the storage container 2, the liquid-cooled heat exchange unit, the storage container 2 and the storage container 2 are mutually independent. The liquid driving device 3 is connected by the connecting pipe 7 to form a closed-loop circulating liquid circuit. The drinking liquid movement track formed in the circulating liquid circuit can guide the thermal convection movement of the drinking liquid, and the drinking liquid is suitable for drinking in the drinking liquid. Local areas of the liquid motion trajectory create the local turbulence. Wherein, the liquid driving device 3 is a pumping device.

When the refrigeration equipment is in operation, the closed-loop circulating liquid circuit formed by the connection of the liquid cooling heat exchange unit, the storage container 2 and the liquid driving device 3 can transport the cooled drinking liquid to the storage container 2 in time, and can continuously circulate the drinking liquid. It is transported to the liquid cooling heat exchange unit for heat exchange, so as to realize circulating refrigeration and improve heat exchange efficiency, so that the drinking liquid in the storage container 2 can be rapidly cooled, and the flow of the drinking liquid in the storage container 2 can be promoted to improve the uniformity of the temperature of the drinking liquid. sex.

In this embodiment, as shown in FIG. 2 , the liquid-cooled heat exchange unit includes a heat exchange fin 61 and a housing 62; one side of the heat exchange fin 61 is provided with a chip contact area 611, and the other side is provided with a chip contact area 611 for forming the The first spoiler fins 612 of the local turbulent flow; the shell 62 includes a heat exchange inlet 621 , a heat exchange outlet 622 and a heat exchange cavity 623 that communicate with each other; the heat exchange fins 61 are sealed with the shell 62 fixed, and the first spoiler fins 612 are located in the heat exchange cavity 623 .

When the liquid-cooled heat exchange unit performs heat exchange, the drinking liquid in the storage container 2 enters the heat exchange cavity 623 from the heat exchange inlet 621 of the liquid-cooled heat exchange unit, and travels along the first spoiler fins 612 to the heat exchange outlet. The drinking liquid flows in the direction of 622 , the drinking liquid contacts the heat exchange fins 61 for heat exchange, and the drinking liquid after heat exchange and cooling enters the storage container 2 through the heat exchange outlet 622 .

Wherein, the ground spoiler fins 612 are a plurality of uniformly arranged plate-shaped spoiler fins, and may also be a square columnar spoiler fin or a cylindrical spoiler fin or a combination of spoiler fins of different shapes. The formed composite spoiler fins can form local turbulent flow when the drinking liquid flows, so that the heat exchange fins 61 can form sufficient heat exchange with the drinking liquid, further increasing the heat exchange effect and improving the heat exchange efficiency.

Further, the liquid-cooled heat exchange unit may include more than two heat exchange fins 61, and two adjacent heat exchange fins 61 are fixedly connected together or formed into an integrated structure, and the core of each of the heat exchange fins 61 is formed. Each of the contact areas 611 is fixed with one semiconductor refrigeration chip 5, so that a plurality of semiconductor refrigeration chips 5 can be fixed, which can greatly improve the cooling capacity of the semiconductor refrigeration system, and can meet the requirement of high cooling power.

The shell 62 of the liquid-cooled heat exchange unit is fixed on the outer surface of the storage container 2, or a support frame is arranged on the outer surface of the storage container 2, and the liquid-cooled heat exchange unit is placed on the outer surface of the storage container 2. On the support frame, or the liquid-cooled heat exchange unit is arranged on one side of the storage container 2 and fixed on the casing 1, so that the liquid-cooled heat exchange unit is fixedly arranged in the storage container 2. container 2 side.

Preferably, an inlet baffle 624 for forming the local turbulent flow is provided in the heat exchange cavity 623 near the heat exchange inlet 621 .

Therefore, by setting the inlet baffle 624 to form a local turbulent flow when the drinking liquid flows, the heat exchange efficiency can be improved, and at the same time, the drinking liquid can flow through the surface of the heat exchange fins 61 from all directions, avoiding that the drinking liquid only flows along the heat exchange inlet. 621 flows into the heat exchange cavity 623, resulting in a fast flow rate of the drinking liquid in the middle part of the heat exchange cavity 623, and a slow flow rate of the drinking liquid in the edge parts, resulting in unbalanced heat exchange between the heat exchange fins 61 and the drinking liquid, reducing the heat exchange efficiency.

In this embodiment, a storage container inlet 21 is provided on the upper part of the storage container 2, and a storage container outlet 22 is provided on the lower part of the storage container 2, so that the storage container inlet 21 and the storage container outlet 22 can pass through the space between the storage container inlet 21 and the storage container outlet 22. The local turbulence is created by the impact of the drinking liquid created by the height difference.

The storage container inlet 21 of the storage container 2 is connected with the heat exchange outlet 622 of the liquid-cooled heat exchange unit through the connecting pipe 7 , and the storage container outlet 22 of the storage container 2 is connected with the liquid-cooled heat exchange through the connecting pipe 7 The heat exchange inlet 621 of the unit is connected, and the liquid driving device 3 is arranged on the connecting pipe 7, thereby forming a closed-loop circulating liquid circuit.

Generally, the result of the natural heat convection movement of the drinking liquid in the storage container 2 is that the temperature of the upper part is high and the temperature of the lower part is low. The arrangement of this embodiment enables the cooled drinking liquid to be continuously input into the upper part of the storage container 2, and at the same time The drinking liquid is continuously drawn out from the lower part of the storage container 2 for cooling, so that the upper part of the storage container 2 is continuously filled with the newly cooled drinking liquid, and the lower part is continuously drawn out with the previously cooled drinking liquid, which artificially forms a kind of The forced convection movement different from natural heat convection makes the drinking liquid flow range in the storage container 2 larger, and at the same time, due to the height difference formed between the storage container inlet 21 and the liquid level in the storage container 2, the input drinking liquid shocks the liquid surface, forming a local turbulence, thus making the water temperature more uniform.

In this embodiment, preferably, the liquid driving device 3 is provided on the connecting pipe 7 between the liquid-cooled heat exchange unit and the storage container 2, or is installed inside the liquid-cooled heat exchange unit and collected therewith become one.

The liquid driving device 3 is arranged inside the liquid cooling heat exchange unit, which can improve the integration and modularization of the refrigeration equipment, make the structure of the refrigeration equipment more compact, and facilitate the miniaturization of the refrigeration equipment.

In another specific embodiment, in addition to the above-mentioned forced circulation heat convection movement formed outside the storage container 2 through the circulating liquid path, forced heat convection movement can also be formed inside the storage container 2. As shown in FIG. 3, the refrigeration transfer The part 6 is configured as a cooling member mounted on the storage container 2 or formed integrally with the storage container 2 , and the heat absorbing surface of the cooling member is exposed to the inner cavity of the storage container 2 .

The liquid driving device 3 may be a water pump, a driving impeller, a driving turbine, etc. In this embodiment, the liquid driving device 3 is preferably a centrifugal water pump, including a motor 33 and a pump body 34, and the motor 33 is placed in the storage container 2, the pump body 34 is placed inside the storage container 2, so that the suction port 32 and the pump outlet 31 are both located in the inner cavity of the storage container 2, wherein the suction port 32 faces the cooling member , so as to be suitable for guiding part of the drinking liquid around the cooling-conducting member to form a thermal convection movement away from the cooling-conducting member during operation, and at the same time guiding part of the drinking liquid in other areas in the storage container 2 to form toward the cooling-conducting member. thermal convection movement of the parts.

In this way, during the cooling process, the drinking liquid around the suction port 32 is continuously sucked in by the liquid driving device 3 and then pumped out from the pump outlet 31, so that the newly cooled drinking liquid around the cooling member is continuously directed towards the liquid that leaves the cooling member. In the direction of movement, the uncooled drinking liquid in the area away from the cooling element is continuously filled and continuously circulated according to this, forming a forced circulation movement of the drinking liquid. Since the drinking liquid near the cooling element is continuously drawn away, the drinking liquid in other areas in the storage container 2 needs to move toward the cooling element continuously to fill the area near the cooling element, so that the drinking liquid in the storage container 2 presents a whole The trend of continuous movement, this movement is different from the natural heat convection trajectory, but a forced heat convection movement that is designed and relatively precisely controlled the movement trajectory of the drinking liquid, thereby promoting the forced convection heat transfer of the drinking liquid and enhancing the diffusion of cold energy. Mixing with the drinking liquid improves the cooling efficiency and avoids the phenomenon that the cooling effect of the drinking liquid in the storage container 2 is not uniform.

Wherein, the liquid driving device 3 may be one or a plurality of them distributed on the side wall of the storage container 2 , which can further promote the thermal convection movement of the drinking liquid in the storage container 2 .

In this embodiment, the cooling member includes a cooling plate 63 and a second spoiler fin 64 located on the inner surface of the cooling plate 63 , and the second spoiler fin 64 protrudes to the storage container 2 within the lumen.

The outer surface of the cold-conducting plate 63 is in contact with the cold end of the semiconductor refrigeration chip 5 to transfer heat, and the second turbulent fins 64 make the drinking liquid in the storage container 2 form local turbulence on the trajectory of the forced thermal convection movement, It further enhances the diffusion of cold energy and the mixing of liquids, which improves the cooling efficiency.

Wherein, the cooling conductor can be detachably connected to the storage container 2 in a sealed manner. For example, a cooling conductor installation opening is formed on the side wall of the storage container 2 , and the cooling conductor is installed on the side of the storage container 2 . on the wall to close the installation opening of the cooling conductor.

Specifically, the outer side wall around the installation opening of the cooling element is provided with side wall mounting holes, and the cold conducting plate 63 is provided with mounting holes for the cooling conducting plate that match with the side wall mounting holes. 63 is installed on the outer side wall of the storage container 2 through the installation hole, so as to close the installation opening of the cooling element, and seal the installation through the sealing ring, and make the second spoiler fin 64 protrude to the outside through the installation opening of the cooling element. or the outer side wall of the storage container 2 is provided with a groove matched with the cold-conducting plate 63, a cooling-conducting member installation opening is provided on the groove, and a cooling-conducting member is installed on the groove. The groove around the installation opening is provided with side wall mounting holes, and the cold conducting plate 63 is provided with a cold conducting plate mounting hole matching with the side wall mounting holes, and the cold conducting plate 63 is mounted to the groove through the mounting holes Inside, the installation opening of the cooling element is closed, and the sealing ring is used for sealing installation, so that the second spoiler fin 64 protrudes into the inner cavity of the storage container 2 through the installation opening of the cooling element.

The above-mentioned detachable installation form is beneficial to the cleaning and maintenance of the storage container 2 and the cold-conducting plate 63 , and the cold-conducting member may also be integrally formed with the storage container 2 .

In another embodiment, the present invention can also be provided with a structure for detecting and controlling the temperature of drinking liquid, as shown in FIG. In step 2, the temperature control module 9 is electrically connected to the temperature sensor 8, the liquid driving device 3, the hot end heat sink 4 and the semiconductor refrigeration chip 5, so that the temperature detected by the temperature sensor 8 The signal controls the working state of the liquid driving device 3 , the hot end radiator 4 and the semiconductor refrigeration chip 5 .

Specifically, the temperature control module 9 includes a temperature control panel 91, a control unit 92 and a refrigeration power supply unit 93; the temperature control panel 91 is integrated with a display screen, a temperature control button and a power switch, and the storage container can be displayed through the display screen The temperature of the drinking liquid in Basically control the operation of the temperature control panel 91 , the hot end radiator 4 , the liquid driving device 3 and the refrigeration power supply unit 93 , so as to intervene in the working state of the refrigeration equipment. The refrigeration power supply unit 93 is suitable for generating the working power of the semiconductor refrigeration chip 5 .

In this embodiment, the control unit 92 is adapted to control the refrigeration power supply unit 93 to cut off the power supply to the semiconductor refrigeration chip 5 when the temperature of the drinking liquid reaches the set temperature, and when the temperature of the drinking liquid is higher than the set temperature When the temperature is reached, the power supply to the semiconductor refrigeration chip 5 is restored.

Wherein, the refrigeration power supply unit 93 controls the on-off of the power supply circuit of the semiconductor refrigeration chip 5 through a relay or a thyristor device.

Preferably, the control unit 92 is adapted to cut off the power supply of the hot end radiator 4 and the liquid driving device 3 while cutting off the power supply of the semiconductor refrigeration chip 5 .

In this way, when the temperature of the drinking liquid reaches the set temperature, the power supply of the semiconductor refrigeration chip 5 is cut off, and the power supply of the hot end radiator 4 and the liquid driving device 3 that have no practical working meaning is cut off at the same time when the equipment is in the heat preservation state, thereby reducing unnecessary equipment. power consumption, saving work energy.

In this embodiment, the temperature sensor 8 is provided in the storage container 2 at a position close to the drinking opening 12 .

Therefore, the temperature of the drinking liquid measured by the temperature sensor 8 is more consistent with the temperature of the drinking liquid obtained from the storage container 2 . The temperature sensor 8 is preferably an NTC sensor, which is accurate in temperature measurement and inexpensive.

The specific working process of this embodiment is as follows: turn on the power switch, and input the set temperature of the cooling water through the temperature control panel 91. If the set temperature is not input, the set temperature inside the system during the last shutdown is used as the set temperature; select Work command, the control unit 92 controls the refrigeration power supply unit 93 to supply power to the semiconductor refrigeration chip 5, the semiconductor refrigeration chip 5 starts to work, the temperature of the hot end of the semiconductor refrigeration chip 5 begins to rise, and the temperature of the cold end decreases, and the control unit 92 controls the hot end to dissipate heat. The power supply of the device 4 and the liquid driving device 3 is connected, and the hot end radiator 4 continuously dissipates the heat of the hot end of the semiconductor refrigeration chip 5, so that the temperature of the hot end of the semiconductor refrigeration chip 5 will not be too high. 5 is damaged by heat, on the one hand, the cold surface of the semiconductor refrigeration chip 5 can reach a lower temperature, and the refrigeration efficiency can be improved. Avoid the phenomenon that the cooling effect of the drinking liquid in the storage container 2 is not uniform, thereby improving the uniformity of the temperature of the drinking liquid; the temperature sensor 8 arranged near the drinking opening 12 detects that the temperature of the drinking liquid gradually drops, and when the temperature sensor 8 detects When the temperature of the drinking liquid reaches the set temperature, the control unit 92 controls the refrigeration power supply unit 93 to cut off the power supply of the semiconductor refrigeration chip 5, and the semiconductor refrigeration chip 5 stops working to prevent the temperature of the drinking liquid from dropping too low; the control unit 92 simultaneously cuts off the hot end radiator 4 and the power supply of the liquid driving device 3 to reduce unnecessary energy consumption. At this time, the equipment stops the refrigeration operation. Under the influence of the outside air temperature, the temperature of the drinking liquid in the storage container 2 gradually rises. When the temperature slowly rises to the set temperature At this time, the control unit 92 controls the refrigeration power supply unit 93 to supply power to the semiconductor refrigeration chip 5 again, and controls the power supply of the hot end radiator 4 and the liquid driving device 3 to be turned on, and the equipment restarts the refrigeration operation.

Therefore, by setting the temperature sensor 8 and the temperature control module 9, the working states of the liquid driving device 3, the hot end radiator 4 and the semiconductor refrigeration chip 5 can be controlled according to the temperature signal detected by the temperature sensor 8, so as to ensure It is ensured that the temperature of the drinking liquid in the storage container 2 is maintained at the set temperature level, so that the temperature control is accurate and the drinking experience of the user is effectively improved.

In the above-mentioned embodiment, the heat insulating layer 23 is provided on the outer periphery of the storage container 2 , and the cooling transfer part 6 is located in the heat insulating layer 23 .

By providing the heat insulating layer 23 , the entry of external heat into the storage container 2 and the cooling transfer part 6 can be reduced, thereby improving the cooling effect. The material of the heat insulating layer 23 is extruded polystyrene foam.

In the above embodiment, the casing 1 is also provided with an air inlet 13 and an air outlet 14, and the hot end radiator 4 is an air-cooled radiator or a water-cooled radiator or a heat pipe radiator with a fan 41. The fan 41 is arranged at the air outlet 14 , and the air inlet 13 is arranged at the bottom of the casing 1 .

Through the operation of the fan 41, the heat released by the hot-end radiator 4 is discharged from the air outlet 14, and the air flow outside the casing 1 enters the interior of the casing 1 from the air inlet 13 to continuously supplement the air discharged from the air outlet 14. A heat dissipation air duct is formed between the air outlet 14 and the air inlet 13, which can have a good heat dissipation effect.

To sum up, the drinking liquid refrigeration device of the present invention controls the drinking liquid relatively accurately by making the cold end of the semiconductor refrigeration chip 5 directly contact the cooling transfer part 6, so that the drinking liquid to be cooled is continuously moved and in contact with the cooling transfer part 6 At the same time, at least one local turbulence is artificially formed on the movement trajectory of the drinking liquid, which enhances the diffusion of cold energy and the mixing of drinking liquid, and improves the cooling efficiency. , so that the temperature of the drinking liquid is uniform.

The actual test of the refrigeration equipment of the present invention proves that the drinking liquid refrigeration equipment of the present invention forms and promotes the forced convection heat transfer of the drinking liquid by controlling the drinking liquid in different areas in the storage container 2 to move continuously and contact the refrigeration transfer part 6 . , effectively improve the cooling efficiency, make the temperature of the drinking liquid drop rapidly, the forced convection heat transfer coefficient of the drinking liquid reaches 1000-15000W/(m ² ·℃), the cooling efficiency is significantly improved, the cooling is rapid, and the storage container 2 The temperature of the drinking liquid remains uniform, and the phenomenon of low temperature at the bottom and high temperature at the top will no longer occur, which effectively improves the user experience.

The refrigeration equipment of the present invention is simple and practical, with relatively low cost, and can be generally applied to drinking equipment such as water dispensers, cold drink dispensers, juice dispensers and the like.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, These simple modifications all belong to the protection scope of the present invention.

In addition, it should be noted that the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the present invention provides The combination method will not be specified otherwise.

In addition, the various embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the contents disclosed in the present invention.

Claims (14)

1. The drinking liquid refrigeration equipment is characterized by comprising a machine shell (1) provided with a liquid filling port (11) and a liquid supply port (12), wherein a storage container (2), a refrigeration transfer part (6), a liquid driving device (3), a semiconductor refrigeration chip (5) and a hot end radiator (4) are arranged inside the machine shell (1), the hot end radiator (4) is in contact with the hot end of the semiconductor refrigeration chip (5), and the refrigeration transfer part (6) is in contact with the cold end of the semiconductor refrigeration chip (5);

the liquid drive means (3) is adapted to guide the heat convection movement of the drinking liquid and to create local turbulence in a part-area of the drinking liquid.

2. The drinking liquid refrigeration apparatus according to claim 1, wherein the refrigeration transfer part (6) is provided as a liquid-cooled heat exchange unit independent of the storage container (2), the liquid-cooled heat exchange unit, the storage container (2) and the liquid driving device (3) are connected by a connecting pipe (7) to form a closed-loop circulating liquid path, a drinking liquid movement locus formed in the circulating liquid path can guide a thermal convection movement of the drinking liquid, and the drinking liquid is adapted to form the local turbulence in a local region of the drinking liquid movement locus.

3. The apparatus according to claim 2, wherein the liquid-cooled heat exchange unit is fixedly arranged at one side of the storage container (2), and comprises heat exchange fins (61) and a shell (62); one surface of the heat exchange plate (61) is provided with a chip contact area (611), and the other surface is provided with a first turbulence fin (612) for forming the local turbulence; the shell (62) comprises a heat exchange inlet (621), a heat exchange outlet (622) and a heat exchange cavity (623) which are communicated with each other; the heat exchange fins (61) are fixed with the shell (62) in a sealing mode, and the first turbulence fins (612) are located in the heat exchange cavity (623).

4. A drinking-liquid chiller as claimed in claim 3, characterised in that an inlet baffle (624) for creating the local turbulence is provided in the heat exchange chamber (623) adjacent to the heat exchange inlet (621).

5. A drinking liquid cooling device according to claim 2, wherein the storage container (2) is provided with a storage container inlet (21) at an upper part and a storage container outlet (22) at a lower part of the storage container (2) in order to enable the creation of the local turbulence by the impact of the drinking liquid generated by the height difference between the storage container inlet (21) and the storage container outlet (22).

6. The drinking-liquid cooling device according to claim 1, characterized in that the cooling transmission part (6) is provided as a cold conductor mounted on the storage container (2) or formed integrally with the storage container (2), the heat-absorbing surface of the cold conductor being exposed to the storage container (2) interior.

7. The drinking-liquid refrigeration appliance according to claim 6, characterized in that the suction opening (32) and the pump outlet (31) of the liquid drive device (3) are both located in the inner cavity of the storage container (2), wherein the suction opening (32) is directed towards the cold guide adapted to direct part of the drinking liquid around the cold guide to form a heat convection movement away from the cold guide during operation, while part of the drinking liquid in other areas in the storage container (2) is directed to form a heat convection movement towards the cold guide.

8. The potable liquid refrigeration apparatus according to claim 6, wherein the cold guide comprises a cold guide plate (63) and a second turbulator fin (64) located on an inner surface of the cold guide plate (63), the second turbulator fin (64) protruding into the inner cavity of the storage container (2).

9. The drinking liquid refrigeration apparatus according to claim 1, further comprising a temperature sensor (8) and a temperature control module (9), wherein the temperature sensor (8) is disposed in the storage container (2), and the temperature control module (9) is electrically connected to the temperature sensor (8), the liquid driving device (3), the hot-end heat sink (4) and the semiconductor refrigeration chip (5) to control the operating states of the liquid driving device (3), the hot-end heat sink (4) and the semiconductor refrigeration chip (5) according to a temperature signal detected by the temperature sensor (8).

10. The drinking liquid refrigeration appliance according to claim 9, wherein the temperature control module (9) comprises a temperature control panel (91), a control unit (92) and a refrigeration power supply unit (93); the temperature control panel (91) is integrated with a display screen, a temperature control button and a power switch, the control unit (92) is suitable for receiving information input through the temperature control panel (91) and information detected by the temperature sensor (8) and controlling the temperature control panel (91), the hot end radiator (4), the liquid driving device (3) and the refrigeration power supply unit (93) to work, and the refrigeration power supply unit (93) is suitable for generating a working power supply of the semiconductor refrigeration chip (5).

11. The potable liquid refrigeration apparatus according to claim 10, wherein the control unit (92) is adapted to control the refrigeration power supply unit (93) to cut off power supply to the semiconductor refrigeration chip (5) when the potable liquid temperature reaches a set temperature, and to restore power supply to the semiconductor refrigeration chip (5) when the potable liquid temperature is higher than the set temperature.

12. The drinking-liquid chiller according to claim 11, wherein the control unit (92) is adapted to cut off the power supply to the hot-side heat sink (4) and the liquid drive (3) at the same time as the semiconductor refrigeration chip (5).

13. The drinking-liquid refrigeration appliance according to any one of claims 1 to 12, characterized in that the storage container (2) is provided with a thermally insulating layer (23) on the periphery, the refrigeration transfer part (6) being located within the thermally insulating layer (23).

14. The drinking liquid refrigeration equipment according to any one of claims 1 to 12, wherein the machine casing (1) is further provided with an air inlet (13) and an air outlet (14), the hot-end radiator (4) is an air-cooled radiator or a water-cooled radiator or a heat pipe radiator with a fan (41), the fan (41) is arranged at the air outlet (14), and the air inlet (13) is arranged at the bottom of the machine casing (1).

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