A control method of a semiconductor energy-saving water dispenser and the semiconductor energy-saving water dispenser

Abstract

This application provides a control method for a semiconductor energy-saving water dispenser and a semiconductor energy-saving water dispenser. The method includes: acquiring the temperature parameters of the water dispenser; acquiring the start-up temperature point and stop temperature point of the water dispenser; determining whether the water dispenser is in a newly powered-on state; if not, acquiring the initial operating voltage level value of the semiconductor cooling chip and controlling the semiconductor cooling chip to operate according to the initial operating voltage level value for 3 cycles; determining whether the initial start-up rate is less than 100%; if so, operating according to the reduced operating voltage level value for 3 cycles; determining whether the target start-up rate is less than 100%; if so, repeating the steps of reducing the operating voltage level value and operating according to the reduced operating voltage level value for 3 cycles until the target start-up rate equals 100%, thereby solving the problems of high noise, high energy consumption, and low lifespan and operational reliability of current water dispensers during use.

Description

Technical Field

[0001] This application relates to the field of water dispenser equipment technology, and in particular to a control method for a semiconductor energy-saving water dispenser and a semiconductor energy-saving water dispenser. Background Technology

[0002] As people's living standards improve, more and more families have higher requirements for quality of life. Traditional water dispensers can no longer meet people's needs. Water dispensers with cooling functions, as a type of machine that combines the functions of a traditional water dispenser and a cooling system, are more user-friendly and safer than traditional water dispensers in many ways, and have gradually come into the public eye.

[0003] Currently, water dispensers mainly use two cooling methods: compressor cooling and semiconductor cooling. Compressor cooling compresses the refrigerant into a high-temperature, high-pressure gas, which is then condensed into a liquid by a condenser and evaporated back into a gas by an evaporator, thus achieving cooling. Semiconductor cooling utilizes the thermoelectric effect (Peltier effect) of semiconductor materials to achieve cooling. This method is simple in structure, low in noise, and inexpensive.

[0004] While compressor refrigeration offers excellent and rapid cooling, it results in higher noise levels, higher energy consumption, and higher prices for water dispensers. Semiconductor refrigeration water dispensers suffer from poor heat dissipation efficiency, as the heating surface lacks adequate cooling airflow, leading to a slower temperature drop at the cooling end. This results in a longer time for the room-temperature water in the tank to reach the required cooling temperature, impacting the cooling effect. Furthermore, the semiconductor module's operating rules are relatively simple, lacking appropriate start-stop rules for different ambient temperatures. This means that in cold winter conditions, the semiconductor module quickly reaches the target cooling temperature after starting operation, causing frequent on / off cycles that reduce the semiconductor's lifespan and operational reliability. Summary of the Invention

[0005] This application provides a control method and a semiconductor energy-saving water dispenser to solve the technical problems of current water dispensers, such as high noise, high energy consumption, high price, low lifespan of semiconductor chips, and low operational reliability.

[0006] The first aspect of this application provides a control method for a semiconductor energy-saving water dispenser, including:

[0007] The temperature parameters of the water dispenser are obtained; the temperature parameters include: the ambient temperature of the water dispenser, the temperature of the sensor inside the water tank, and the initial set temperature of the water dispenser.

[0008] Based on the initial set temperature of the water dispenser, the start-up temperature point and the stop temperature point of the water dispenser are obtained;

[0009] Determine whether the water dispenser is in a newly powered-on state. If not, based on the ambient temperature of the water dispenser, obtain the initial operating voltage level of the semiconductor cooling chip, and control the semiconductor cooling chip to operate for 3 cycles according to the initial operating voltage level. The newly powered-on state is defined as the water dispenser being powered on for less than 1 minute. The cycle is the time from when the water dispenser reaches the start-up temperature point to the stop-down temperature point.

[0010] The initial operating rate of the water dispenser is obtained, and it is determined whether the initial operating rate is less than 100%. If so, a downgrading operation is performed based on the initial operating voltage level value, and the machine is run for 3 cycles according to the downgraded operating voltage level value. The downgrading operation is based on the initial operating voltage level value of the semiconductor cooling chip, and the voltage level is reduced by one level.

[0011] The target operating rate of the water dispenser is obtained, and it is determined whether the target operating rate is less than 100%. If so, the step of downgrading the operating voltage level based on the operating voltage level is repeated for 3 cycles until the target operating rate is equal to 100% and the temperature of the sensor in the water tank reaches the set temperature value. Then, the semiconductor cooling chip is maintained at the downgraded operating voltage level.

[0012] In some embodiments, obtaining the start-up temperature point and stop-down temperature point of the water dispenser based on the initial set temperature of the water dispenser includes:

[0013] Based on the initial set temperature of the water dispenser, the start-up temperature point of the water dispenser is obtained; the start-up temperature point of the water dispenser is:

[0014] T on =T0+2;

[0015] In the formula, T0 is the initial set temperature of the water dispenser;

[0016] Based on the start-up temperature of the water dispenser, the stop-off temperature of the water dispenser is obtained; the stop-off temperature of the water dispenser is:

[0017] T off =T on -2.

[0018] In some embodiments, after obtaining the initial operating voltage level of the thermoelectric cooler based on the ambient temperature of the water dispenser, the method further includes:

[0019] Based on the ambient temperature of the water dispenser, if the ambient temperature of the water dispenser is not lower than the first preset temperature, the cooling fan is controlled to start according to 100% of the preset rated voltage value of the cooling fan.

[0020] If the ambient temperature of the water dispenser is lower than the first preset temperature, the cooling fan is controlled to start at 75% of the preset rated voltage value of the cooling fan.

[0021] In some embodiments, the operating voltage range values ​​of the thermoelectric cooler include: a first voltage range value, a second voltage range value, a third voltage range value, a fourth voltage range value, and a fifth voltage range value; the first voltage range value is 100% of the preset rated voltage value of the thermoelectric cooler, the second voltage range value is 75% of the preset rated voltage value of the thermoelectric cooler, the third voltage range value is 50% of the preset rated voltage value of the thermoelectric cooler, the fourth voltage range value is 35% of the preset rated voltage value of the thermoelectric cooler, and the fifth voltage range value is 20% of the preset rated voltage value of the thermoelectric cooler.

[0022] In some embodiments, after determining whether the water dispenser is newly powered on, the method further includes:

[0023] If so, the semiconductor cooling chip is controlled to run at the first voltage level for 30 minutes; after 30 minutes, the steps of obtaining the initial operating voltage level of the semiconductor cooling chip based on the ambient temperature of the water dispenser and controlling the semiconductor cooling chip to run for 3 cycles at the initial operating voltage level are executed.

[0024] In some embodiments, obtaining the initial operating voltage level of the thermoelectric cooler based on the ambient temperature of the water dispenser includes:

[0025] Based on the ambient temperature of the water dispenser, if the ambient temperature of the water dispenser is greater than the first preset temperature, then the initial operating voltage level of the semiconductor cooling chip is the first voltage level value.

[0026] If the ambient temperature of the water dispenser is greater than the second preset temperature but not greater than the first preset temperature, then the initial operating voltage level of the semiconductor cooling chip is the second voltage level value.

[0027] If the ambient temperature of the water dispenser is not greater than the second preset temperature, then the initial operating voltage level of the semiconductor cooling chip is the third voltage level.

[0028] In some embodiments, after obtaining the target operating rate of the water dispenser and determining whether the target operating rate is less than 100%, the method further includes...

[0029] If not, the thermoelectric cooler will continue to operate at the initial operating voltage level.

[0030] A second aspect of this application provides a semiconductor energy-saving water dispenser, comprising:

[0031] Water dispenser body;

[0032] A back panel is provided on one side of the water dispenser body and is detachably connected to the water dispenser body.

[0033] Semiconductor module, temperature sensor, ambient temperature sensor, water tank, and controller are installed inside the water dispenser body;

[0034] The temperature sensor is installed inside the water tank to obtain the temperature value inside the water tank.

[0035] The ambient temperature sensor is located on the outside of the water tank and is used to obtain the ambient temperature value of the water dispenser body.

[0036] The controller is electrically connected to the semiconductor module, temperature sensor, and ambient temperature sensor, and is used to execute the control method of a semiconductor energy-saving water dispenser described in any one of the first aspects above.

[0037] In some embodiments, the semiconductor module includes:

[0038] A cooling block, one end of which is connected to the water tank;

[0039] A semiconductor refrigeration chip, wherein the cold end of the semiconductor refrigeration chip is connected to the other end of the cooling block;

[0040] A heat sink, one end of which is connected to the hot end of the semiconductor cooling chip via thermal grease;

[0041] A fan motor is connected to the other end of the heat sink.

[0042] In some embodiments, a foam pad is provided on the outer side of the connection end between the semiconductor cooling chip and the cooling block and the heat sink; the foam pad is made of one of EVA foam, EPS foam and PU polyurethane foam.

[0043] This application provides a control method for a semiconductor energy-saving water dispenser and a semiconductor energy-saving water dispenser, including: acquiring temperature parameters of the water dispenser; the temperature parameters include: the ambient temperature of the water dispenser, the temperature of a sensor inside the water tank, and the initial set temperature of the water dispenser; based on the initial set temperature of the water dispenser, acquiring the start-up temperature point and the stop temperature point of the water dispenser; determining whether the water dispenser is in a newly powered-on state; if not, based on the ambient temperature of the water dispenser, acquiring the initial operating voltage level of the semiconductor cooling chip, and controlling the semiconductor cooling chip to operate according to the initial operating voltage level for 3 cycles; the newly powered-on state is defined as the water dispenser being powered on for less than 1 minute; the cycle is the time from when the water dispenser reaches the start-up temperature point to the stop temperature point; acquiring the initial start-up rate of the water dispenser, and determining the initial operating temperature point of the water dispenser; and determining whether the water dispenser is in a newly powered-on state. If the initial operating voltage level is less than 100%, then a downgrading operation is performed based on the initial operating voltage level, and the system operates at the downgraded operating voltage level for 3 cycles. The downgrading operation is based on the initial operating voltage level of the semiconductor cooling chip, reducing it by one level. The target operating voltage level of the water dispenser is obtained, and it is determined whether the target operating voltage level is less than 100%. If so, the downgrading operation based on the operating voltage level is repeated, and the system operates at the downgraded operating voltage level for 3 cycles until the target operating voltage level equals 100% and the sensor temperature in the water tank reaches the set temperature value. Then, the semiconductor cooling chip is maintained at the downgraded operating voltage level to reduce noise and energy consumption during use, and to improve the lifespan and operational reliability of the semiconductor cooling chip. Attached Figure Description

[0044] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a flowchart of the control method for the semiconductor energy-saving water dispenser in this application;

[0046] Figure 2 This is a schematic diagram of the semiconductor energy-saving water dispenser in this application;

[0047] Figure 3 This is a schematic diagram of the semiconductor module in this application.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1-Water dispenser body; 2-Back panel; 3-Semiconductor module; 31-Cooling block; 32-Semiconductor cooling chip; 33-Heat sink; 34-Fan motor; 35-Foam pad; 4-Temperature sensor; 5-Ambient temperature sensor; 6-Water tank. Detailed Implementation

[0050] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0051] Because some technologies result in water dispensers that generate significant noise, consume high energy, and are expensive during use; furthermore, the lifespan and operational reliability of semiconductor chips are relatively low. To address these technical problems, this application provides a control method for a semiconductor energy-saving water dispenser and the semiconductor energy-saving water dispenser itself. The control method and the semiconductor energy-saving water dispenser are described below:

[0052] Depend on Figure 1 As can be seen, the first aspect of this application provides a control method for a semiconductor energy-saving water dispenser, including the following steps:

[0053] S100: Acquire the temperature parameters of the water dispenser; the temperature parameters include: the ambient temperature of the water dispenser, the sensor temperature inside the water tank, and the initial set temperature of the water dispenser; the initial set temperature is the temperature value inside the water tank set manually by the user. Determine the start-up voltage of the thermoelectric cooler and the cooling fan based on the acquired ambient temperature, and determine the start-up and stop temperature points of the thermoelectric cooler based on the initial set temperature.

[0054] S200: Based on the initial set temperature of the water dispenser, obtain the start-up temperature point and the stop temperature point of the water dispenser; obtaining the start-up temperature point and the stop temperature point of the water dispenser based on the initial set temperature of the water dispenser includes the following steps: S201: Based on the initial set temperature of the water dispenser, obtain the start-up temperature point of the water dispenser; the start-up temperature point of the water dispenser is: T on =T0+2; where T0 is the initial set temperature of the water dispenser; S202: Based on the start-up temperature point of the water dispenser, obtain the stop-off temperature point of the water dispenser; the stop-off temperature point of the water dispenser is: T off =T on -2.

[0055] S300: Determine whether the water dispenser is in a newly powered-on state. If not, based on the ambient temperature of the water dispenser, obtain the initial operating voltage level of the thermoelectric cooler and control the thermoelectric cooler to operate for 3 cycles according to the initial operating voltage level. The newly powered-on state is defined as the water dispenser being powered on for less than 1 minute. The cycle is the time from when the water dispenser reaches the start-up temperature point to the stop-down temperature point. The operating voltage level of the thermoelectric cooler includes: a first voltage level, a second voltage level, and a third voltage level. The first voltage level is 100% of the preset rated voltage of the thermoelectric cooler; the second voltage level is 75% of the preset rated voltage of the thermoelectric cooler; the third voltage level is 50% of the preset rated voltage of the thermoelectric cooler; the fourth voltage level is 35% of the preset rated voltage of the thermoelectric cooler; and the fifth voltage level is 20% of the preset rated voltage of the thermoelectric cooler. The preset rated voltage of the thermoelectric cooler is 12V.

[0056] The process of obtaining the initial operating voltage level of the thermoelectric cooler based on the ambient temperature of the water dispenser includes the following sub-steps: S301: Based on the ambient temperature of the water dispenser, if the ambient temperature is greater than a first preset temperature, the initial operating voltage level of the thermoelectric cooler is set to the first voltage level; the first preset temperature is 35°C. S302: If the ambient temperature is greater than a second preset temperature but not greater than the first preset temperature, the initial operating voltage level of the thermoelectric cooler is set to the second voltage level; the second preset temperature is 20°C. S303: If the ambient temperature is not greater than the second preset temperature, the initial operating voltage level of the thermoelectric cooler is set to the third voltage level. By setting the initial operating voltage level of the thermoelectric cooler based on the ambient temperature, the energy consumption of the thermoelectric cooler is reduced, the noise generated by the water dispenser is reduced, and the service life of the thermoelectric cooler is improved.

[0057] After obtaining the initial operating voltage level of the thermoelectric cooler based on the ambient temperature of the water dispenser, the method further includes the following steps: S310: If the ambient temperature of the water dispenser is not lower than a first preset temperature, the cooling fan is controlled to start at 100% of its preset rated voltage value; the preset rated voltage value of the cooling fan is 12V; S320: If the ambient temperature of the water dispenser is lower than the first preset temperature, the cooling fan is controlled to start at 75% of its preset rated voltage value. By setting the starting voltage value of the cooling fan based on the ambient temperature, the energy consumption of the cooling fan is reduced, thereby further reducing the noise generated by the water dispenser and increasing the service life of the cooling fan.

[0058] After determining whether the water dispenser is newly powered on, the process further includes the following steps: S330: If yes, control the thermoelectric cooler to run at the first voltage level for 30 minutes; after 30 minutes, execute the step of obtaining the initial operating voltage level of the thermoelectric cooler based on the ambient temperature of the water dispenser, and controlling the thermoelectric cooler to run at the initial operating voltage level for 3 cycles. To ensure the cooling speed of the room temperature water in the water tank of the water dispenser, the thermoelectric cooler operates at 100% full voltage, i.e., at the first voltage level, within the first 30 minutes after power-on. Afterwards, execute the step of obtaining the initial operating voltage level of the thermoelectric cooler based on the ambient temperature of the water dispenser, and controlling the thermoelectric cooler to run at the initial operating voltage level for 3 cycles.

[0059] S400: Obtain the initial operating rate of the water dispenser, determine whether the initial operating rate is less than 100%, and if so, perform a downgrading operation based on the initial operating voltage level, and run for 3 cycles at the downgraded operating voltage level; the downgrading operation is based on the initial operating voltage level of the thermoelectric cooler, reducing it by one level; after obtaining the target operating rate of the water dispenser and determining whether the target operating rate is less than 100%, the following step is also included: S410: If not, maintain the thermoelectric cooler running at the initial operating voltage level. Obtain the initial operating rate of the water dispenser and the temperature of the sensor inside the cabinet, and adjust the operating parameters of the water dispenser based on the initial operating parameters, which are the power supply voltage of the thermoelectric cooler. If the initial operating rate is less than 100%, it indicates that the thermoelectric cooler is turning on and off under this condition, and the room temperature meets the target requirements at the same time. In this case, the power supply voltage of the thermoelectric cooler can be further reduced. If the initial power-on rate is 100%, it means that the thermoelectric cooler does not turn on or off under this condition, and the current power supply voltage of the thermoelectric cooler is maintained. The power-on rate is the quotient of the power-on time and the sum of the power-off time; for example, if a water dispenser reaches the shutdown temperature after 10 minutes of operation, it will turn off. If it reaches the power-on temperature after 15 minutes of operation, it will turn on. The power-on rate of the water dispenser is 10 / (10+15).

[0060] S500: Obtain the target start-up rate of the water dispenser, determine whether the target start-up rate is less than 100%, if so, repeat the step of downgrading the operating voltage level based on the operating voltage level value, and run for 3 cycles according to the downgraded operating voltage level value, until the target start-up rate is equal to 100% and the sensor temperature in the water tank reaches the set temperature value, then maintain the semiconductor cooling chip at the downgraded operating voltage level value.

[0061] This application provides a control method and a semiconductor energy-saving water dispenser. By acquiring the ambient temperature, the sensor temperature inside the water tank, and the initial set temperature, the method determines the start-up voltage of the semiconductor cooling chip and the cooling fan, as well as the start-up and stop-up temperature points of the water dispenser, according to the aforementioned control rules, controlling the water dispenser to operate for at least three cycles. The power supply voltage of the semiconductor cooling chip is adjusted based on the start-up rate within these three cycles, ensuring that the semiconductor cooling chip operates at 100% start-up rate while meeting the target temperature. This effectively avoids the risk of semiconductor cooling chip failure due to frequent start-up and stop-up. Furthermore, the adjustable power supply voltage of the semiconductor cooling chip is used for different ambient temperatures; for example, reducing the power supply voltage at low ambient temperatures allows the water dispenser to maintain optimal operating conditions, resulting in more precise temperature control and better energy saving.

[0062] Depend on Figure 2 and Figure 3 As can be seen, the second aspect of this application provides a semiconductor energy-saving water dispenser, implementing the control method of the semiconductor energy-saving water dispenser described in any of the above embodiments, including: a water dispenser body 1; a display screen is provided on the water dispenser body 1 for displaying the temperature inside the water tank and setting the temperature value inside the water tank; a back panel 2, which is disposed on one side of the water dispenser body 1 and is detachably connected to the water dispenser body 1; an air inlet for a fan motor 34 is provided on the back panel 2; a semiconductor module 3, a temperature sensor 4, an ambient temperature sensor 5, a water tank 6, and a controller are disposed inside the water dispenser body 1; the water tank 6 is provided with an inlet / outlet and a drain outlet; the temperature sensor 4 is disposed inside the water tank 6 for obtaining the temperature value inside the water tank; the ambient temperature sensor 5 is disposed outside the water tank 6 for obtaining the ambient temperature value of the water dispenser body 1; the controller is electrically connected to the semiconductor module 3, the temperature sensor 4, and the ambient temperature sensor 5, and is used to execute the control method of the semiconductor energy-saving water dispenser described in any of the above embodiments. When the semiconductor energy-saving water dispenser executes the control method described above, the effects of each part can be found in the above method embodiments, and will not be repeated here.

[0063] Depend on Figure 3It is understood that the semiconductor module 3 includes: a cooling block 31, one end of which is connected to the water tank 6; the cooling block 31 is used for heat exchange on the cold side of the semiconductor cooling chip 32; the cooling block 31 for heat exchange on the cold side of the semiconductor cooling chip 32 is fixed to one side of the water tank 6 by a snap-fit ​​method; the cooling block 31 is a metal block with high thermal conductivity; the cooling block 31 is provided with fins at a certain spacing; the fins are in contact with the room temperature water in the water tank 6; the fins cover at least 50% of the internal space height of the water tank 6 in the height direction; a semiconductor cooling chip 32, the cold end of which is connected to the other end of the cooling block 31; the semiconductor cooling chip 32 cools on one side and dissipates heat on the other; a heat sink 33, one end of which is connected to the hot end of the semiconductor cooling chip 32 by thermal grease; by optimizing the air duct structure of the hot end of the semiconductor cooling chip 32, the air duct circulation efficiency is improved, and the heat sink is reduced. The design features a low hot-side temperature and an optimized cold-end cooling block 31 for efficient heat exchange with water, resulting in faster cooling. The hot-end airflow design of the thermoelectric cooler 32 is optimized for high heat dissipation efficiency, and the cold end of the thermoelectric cooler 32 has a larger contact area with water. The insulating sponge between the hot and cold sides uses a low thermal conductivity material, further improving the heat exchange efficiency of the semiconductor module. The heat sink 33 is used for heat dissipation from the hot side of the thermoelectric cooler 32. The thermal grease is a material used to fill the gaps between the cooling block 31, the thermoelectric cooler 32, and the heat sink 33. Its function is to conduct heat dissipated from the chip through the cooling block 31 and the heat sink 33, maintaining the temperature of the thermoelectric cooler 32 at a stable operating level and preventing damage due to poor heat dissipation, thereby extending the service life of the thermoelectric cooler 32. A fan motor 34 is connected to the other end of the heat sink 33. The fan motor 34 is used to accelerate heat dissipation. The fan motor 34 is fixed to the heat sink 33 by screws or other means. An air inlet for the fan motor 34 is located on the rear panel 2 of the water dispenser, and a hot air outlet is located inside the water dispenser body 1, forming a highly efficient heat dissipation circulation channel. The effects of each part of the semiconductor energy-saving water dispenser when executing the above-described control method can be found in the above-described method embodiments, and will not be repeated here.

[0064] Depend on Figure 3 It is known that a foam pad 35 is provided on the outer side of the connection end between the semiconductor cooling chip 32 and the cooling block 31 and the heat sink 33; the foam pad 35 is made of one of EVA foam, EPS foam and PU polyurethane foam. The foam pad 35 is used to insulate the heat transfer between the hot and cold ends and avoid the loss of cooling capacity of the semiconductor cooling chip 32. The foam pad 35 is generally made of EVA foam, EPS foam and PU polyurethane foam, with PU polyurethane foam being preferred.

[0065] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A control method of a semiconductor energy-saving water dispenser, characterized by, include: Obtain the temperature parameters of the water dispenser; The temperature parameters include: the ambient temperature of the water dispenser, the temperature of the sensor inside the water tank, and the initial set temperature of the water dispenser; Based on the initial set temperature of the water dispenser, the start-up temperature point and the stop temperature point of the water dispenser are obtained; Determine whether the water dispenser is in a newly powered-on state. If not, based on the ambient temperature of the water dispenser, obtain the initial operating voltage level of the semiconductor cooling chip, and control the semiconductor cooling chip to operate for 3 cycles according to the initial operating voltage level. The newly powered-on state is defined as the water dispenser being powered on for less than 1 minute. The cycle is the time from when the water dispenser reaches the start-up temperature point to the stop-down temperature point. The initial operating rate of the water dispenser is obtained, and it is determined whether the initial operating rate is less than 100%. If so, a downgrading operation is performed based on the initial operating voltage level, and the machine is run for 3 cycles according to the downgraded operating voltage level. The downgrading operation is based on the initial operating voltage level of the semiconductor cooling chip, and the voltage level is reduced by one level. The operating rate is the quotient of the operating time and the sum of the operating time and the shutdown time. The target operating rate of the water dispenser is obtained, and it is determined whether the target operating rate is less than 100%. If so, the step of downgrading the operating voltage level based on the operating voltage level is repeated for 3 cycles until the target operating rate is equal to 100% and the temperature of the sensor in the water tank reaches the set temperature value. Then, the semiconductor cooling chip is maintained to operate at the downgraded operating voltage level.

2. The control method of a semiconductor energy-saving water dispenser according to claim 1, characterized in that, The process of obtaining the start-up temperature point and stop-down temperature point of the water dispenser based on its initial set temperature includes: Based on the initial set temperature of the water dispenser, the start-up temperature point of the water dispenser is obtained; the start-up temperature point of the water dispenser is: Ton = T0 + 2; In the formula, T0 is the initial set temperature of the water dispenser; Based on the start-up temperature of the water dispenser, the stop-off temperature of the water dispenser is obtained; the stop-off temperature of the water dispenser is: Toff = Ton - 2.

3. The control method of a semiconductor energy-saving water dispenser according to claim 1, wherein After obtaining the initial operating voltage level of the thermoelectric cooler based on the ambient temperature of the water dispenser, the method further includes: Based on the ambient temperature of the water dispenser, if the ambient temperature of the water dispenser is not lower than the first preset temperature, the cooling fan is controlled to start according to 100% of the preset rated voltage value of the cooling fan. If the ambient temperature of the water dispenser is lower than the first preset temperature, the cooling fan is controlled to start at 75% of the preset rated voltage value of the cooling fan.

4. The control method for a semiconductor energy-saving water dispenser according to claim 1, characterized in that, The operating voltage levels of the thermoelectric cooler include: a first voltage level, a second voltage level, a third voltage level, a fourth voltage level, and a fifth voltage level; the first voltage level is 100% of the preset rated voltage of the thermoelectric cooler, the second voltage level is 75% of the preset rated voltage of the thermoelectric cooler, the third voltage level is 50% of the preset rated voltage of the thermoelectric cooler, the fourth voltage level is 35% of the preset rated voltage of the thermoelectric cooler, and the fifth voltage level is 20% of the preset rated voltage of the thermoelectric cooler.

5. The control method for a semiconductor energy-saving water dispenser according to claim 4, characterized in that, After determining whether the water dispenser is in a newly powered-on state, the method further includes: If so, the semiconductor cooling chip is controlled to run at the first voltage level for 30 minutes; after 30 minutes, the steps of obtaining the initial operating voltage level of the semiconductor cooling chip based on the ambient temperature of the water dispenser and controlling the semiconductor cooling chip to run for 3 cycles at the initial operating voltage level are executed.

6. The control method for a semiconductor energy-saving water dispenser according to claim 4, characterized in that, The process of obtaining the initial operating voltage level of the thermoelectric cooler based on the ambient temperature of the water dispenser includes: Based on the ambient temperature of the water dispenser, if the ambient temperature of the water dispenser is greater than the first preset temperature, then the initial operating voltage level of the semiconductor cooling chip is the first voltage level value. If the ambient temperature of the water dispenser is greater than the second preset temperature but not greater than the first preset temperature, then the initial operating voltage level of the semiconductor cooling chip is the second voltage level value. If the ambient temperature of the water dispenser is not greater than the second preset temperature, then the initial operating voltage level of the semiconductor cooling chip is the third voltage level.

7. The control method for a semiconductor energy-saving water dispenser according to claim 1, characterized in that, After obtaining the target operating rate of the water dispenser and determining whether the target operating rate is less than 100%, the process also includes... If not, the thermoelectric cooler will continue to operate at the initial operating voltage level.

8. A semiconductor energy-saving water dispenser, characterized in that, include: Water dispenser body (1); The back panel (2) is disposed on one side of the water dispenser body (1) and is detachably connected to the water dispenser body (1). The following components are installed in the main body (1): semiconductor module (3), temperature sensor (4), ambient temperature sensor (5), water tank (6), and controller; The temperature sensor (4) is installed inside the water tank (6) to obtain the temperature value inside the water tank; The ambient temperature sensor (5) is located on the outside of the water tank (6) and is used to obtain the ambient temperature value of the water dispenser body (1). The controller is electrically connected to the semiconductor module (3), temperature sensor (4), and ambient temperature sensor (5) and is used to execute the control method of a semiconductor energy-saving water dispenser as described in any one of claims 1 to 7.

9. A semiconductor energy-saving water dispenser according to claim 8, characterized in that, The semiconductor module (3) includes: A cooling block (31) is provided, one end of which is connected to the water tank (6). A semiconductor cooling chip (32) is provided, with its cold end connected to the other end of the cooling block (31). A heat sink (33) is provided, one end of which is connected to the hot end of the semiconductor cooling chip (32) via thermal grease. A fan motor (34) is connected to the other end of the heat sink (33).

10. A semiconductor energy-saving water dispenser according to claim 9, characterized in that, A foam pad (35) is provided on the outer side of the connection end between the semiconductor cooling chip (32) and the cooling block (31) and the heat sink (33); the foam pad (35) is made of one of EVA foam, EPS foam and PU polyurethane foam.

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