Temperature regulation control system and control method for cold and hot dual-purpose constant-temperature container

Abstract

The invention relates to the technical field of heat pump systems, and discloses a temperature regulation control system and control method for a cold and hot dual-purpose constant-temperature container, and the system comprises a semiconductor chip which is used for refrigerating or heating the constant-temperature container; the NTC thermistor is used for measuring the temperature in the constant-temperature container and converting a temperature signal into an electric signal; the TDS water quality detection probe is used for detecting the TDS value of the water quality in the constant-temperature container and converting a detection signal into an electric signal; and the MCU main control circuit is electrically connected with the NTC thermistor and the TDS water quality detection probe respectively and is used for receiving a temperature signal and a TDS value detection signal. Through cooperative work of the MCU main control circuit, the NTC thermistor, the TDS water quality detection probe and other elements, the temperature and the water quality condition in the constant temperature container can be accurately measured, according to the target temperature set by a user through the key function unit, the reverse voltage driving module is used for flexibly changing the voltage polarities at the two ends of the semiconductor piece, and the stability of the constant temperature container is improved. The efficient and accurate cold and hot wide-temperature-zone temperature adjustment control technology and method are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump systems, and particularly to a temperature control system and method for a temperature-controlled container that can be used for both heating and cooling. Background Art

[0002] As an indispensable item in daily life, heat preservation containers have evolved over the years. From the early simple vacuum-insulated Dewar flasks to the current new products that integrate multiple materials and processes such as stainless steel inner linings and coatings, they are widely used in many fields such as household, medical, material transportation, and scientific research, providing many conveniences for people's lives. Currently, portable small heat preservation containers on the market, such as thermos cups, electric lunch boxes, and small refrigerated boxes, have different focuses in functions, but generally have obvious limitations.

[0003] On the one hand, most traditional heat preservation containers only have basic heat preservation functions, or some have electric heating functions, but cannot achieve refrigeration and precise temperature control. For example, common electric lunch boxes need to be plugged in to heat, and their application scenarios are limited, making it difficult to meet the immediate heating needs of users in places without power sources such as outdoors; while portable medicine transfer refrigerated boxes can slow down heat dissipation through vacuum insulation means to achieve a certain cold preservation effect, but cannot achieve constant temperature control, nor can they quickly adjust to a suitable temperature when needed. For items with strict requirements for storage environments, such as some fresh foods and special medicines, it is difficult to provide a reliable storage environment.

[0004] On the other hand, the intelligence level of traditional heat preservation containers is relatively low, lacking a real-time monitoring and display system. Users cannot intuitively understand key information such as the temperature and water quality inside the container, making it difficult to adjust flexibly according to actual needs, and the use experience is poor. At the same time, the traditional electric heating wire heating method has low efficiency and high energy consumption. For portable heat preservation containers, this heating method poses a great challenge to the battery life, severely restricting their application in long-term outdoor use scenarios.

[0005] In addition, the functions of existing heat preservation containers are relatively single, making it difficult to adapt to complex and changing real-world demand scenarios. In the hot summer, people hope to quickly cool down the items inside the container; while in the cold winter, they desire to heat up conveniently. Traditional products cannot balance the refrigeration and heating needs, and cannot provide a reasonable temperature control solution for users, greatly limiting the application potential of heat preservation containers in multiple scenarios and making it difficult to fully meet people's increasingly diverse living needs.

[0006] Therefore, those skilled in the art have proposed a temperature control system and method for a temperature-controlled container that can be used for both heating and cooling, which solves the problems raised in the above background art. Summary of the Invention

[0007] In view of the deficiencies of the prior art, the present invention provides a temperature control system and method for a temperature-controlled container with dual cold and heat functions, which solves the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions: A temperature control system for a temperature-controlled container with dual cold and heat functions, comprising:

[0009] A semiconductor chip for refrigerating or heating the temperature-controlled container;

[0010] An NTC thermistor for measuring the temperature inside the temperature-controlled container and converting the temperature signal into an electrical signal;

[0011] A TDS water quality detection probe for detecting the TDS value of the water quality inside the temperature-controlled container and converting the detection signal into an electrical signal;

[0012] An MCU main control circuit electrically connected to the NTC thermistor and the TDS water quality detection probe respectively, for receiving the temperature signal and the TDS value detection signal, and generating a control signal or display according to a preset control logic;

[0013] An inversion voltage drive module electrically connected to the MCU main control circuit and the semiconductor chip, for changing the voltage polarity at both ends of the semiconductor chip according to the control signal generated by the MCU main control circuit to achieve the conversion and on / off of the refrigeration or heating mode;

[0014] An electric energy management unit for providing electric energy of different systems for the entire temperature control system and managing the distribution and conversion of electric energy;

[0015] A battery temperature monitoring NTC thermistor for monitoring the temperature of the lithium battery pack and transmitting the temperature signal as an electrical signal to the equalizing charging protection circuit;

[0016] A voltage management circuit module electrically connected to the voltage regulation and stabilization circuit, the voltage conversion circuit, the motor control MOS transistor, and the MCU main control circuit, for matching power supplies from different sources, performing voltage regulation on the electric energy voltage, and supplying power to other low-power circuit modules such as the MCU main control circuit;

[0017] A voltage conversion circuit module for converting the voltage input from an external power supply into a voltage suitable for use by the electric energy management unit;

[0018] A voltage regulation and stabilization circuit module electrically connected to the inversion voltage drive module and the voltage management circuit module, for realizing voltage regulation and stabilization processing of the output voltage of the electric energy management unit and supplying power to the inversion voltage drive module and the voltage management circuit module;

[0019] The first power MOS switch and the second power MOS switch are respectively electrically connected to the MCU main control circuit, the power management unit, and the reverse voltage drive module, and are used to switch the power supply selection between the power storage unit and the external power supply interface under the control of the MCU main control circuit. The MCU main control circuit simultaneously controls the reverse voltage drive module to achieve voltage inversion.

[0020] The motor control MOS transistor is electrically connected to the MCU main control circuit and the fan drive motor, and is used to drive the fan drive motor to work under the control of the MCU main control circuit.

[0021] The display circuit module is electrically connected to the MCU main control circuit and is used to provide a display information signal for the MCU main control circuit so that the MCU main control circuit can perform relevant control operations.

[0022] Preferably, it further includes:

[0023] The key function unit is electrically connected to the MCU main control circuit and is used to input the operation instructions of the user and convert the operation instructions into electrical signals and transmit them to the MCU main control circuit;

[0024] The power supply unit is electrically connected to the power management unit and is used to store electric energy and provide power for the power management unit;

[0025] The lithium battery pack is arranged in the power supply unit and is used to store electric energy;

[0026] The balanced charge and discharge protection circuit module is electrically connected to the lithium battery pack and the power management unit and is used to perform balanced charge and discharge and protection on the lithium battery pack;

[0027] The charging interface is connected to the voltage conversion circuit and the charge and discharge management circuit, and the voltage conversion circuit supplies power to the semiconductor chip and the voltage management circuit;

[0028] The charge and discharge management circuit module is electrically connected to the charging interface and the power management unit and is used to manage the charging process of the external power supply to the power supply unit and the discharge process management of the power supply unit;

[0029] The fan drive motor is electrically connected to the motor control MOS transistor and is used to drive the fan to work;

[0030] The fan is arranged near the semiconductor chip and is used to perform heat exchange and temperature control on the semiconductor chip;

[0031] The display circuit module is electrically connected to the MCU main control circuit and is used to display information such as the temperature, function mode, battery power and charging status, and water quality monitoring value in the constant temperature container;

[0032] An overcurrent protector is arranged on the circuit between the power management unit and the reverse voltage drive module, and is used for overcurrent protection of the circuit.

[0033] Preferably, the fan drive motor is electrically connected to the MCU main control circuit through a motor control MOS tube. The MCU main control circuit controls the on / off of the motor control MOS tube according to the temperature regulation state, and further controls the working state of the fan drive motor. The fan drive motor drives the fan to control the temperature of the semiconductor chip.

[0034] Preferably, the display circuit module is composed of a display screen or a display circuit module, and is used for displaying working states such as the temperature, function mode, battery power and charging state, water quality monitoring value, screen locking state and screen off state in the heat preservation container.

[0035] A temperature regulation control method for a cold and hot dual-use constant temperature container, characterized in that it is applied to the temperature regulation control system of the cold and hot dual-use constant temperature container according to any one of claims 1 to 4, and includes the following steps:

[0036] Measure the temperature in the constant temperature container through an NTC thermistor, and convert the temperature signal into an electrical signal and transmit it to the MCU main control circuit;

[0037] Detect the TDS value of the water quality in the constant temperature container through a TDS water quality detection probe, and convert the detection signal into an electrical signal and transmit it to the MCU main control circuit;

[0038] Input the user's operation instruction through the key function unit, and convert the operation instruction into an electrical signal and transmit it to the MCU main control circuit;

[0039] The MCU main control circuit generates a control signal according to the received temperature signal, TDS value detection signal and user operation instruction according to a preset control logic;

[0040] The MCU main control circuit transmits the generated control signal to the reverse voltage drive module, controls the reverse voltage drive module to change the voltage polarity at both ends of the semiconductor chip, and realizes the conversion of the refrigeration or heating mode, so that the temperature in the constant temperature container reaches the set target;

[0041] The power management unit provides power for the entire temperature regulation control system, and manages the distribution and conversion of power according to the working state of the system, including discharging from the lithium battery pack to the voltage regulating and stabilizing circuit module through the balanced charge and discharge protection circuit module when there is no external power supply. After the voltage regulating and stabilizing circuit module regulates and stabilizes the voltage, it supplies power to the reverse voltage drive module and the voltage management circuit, and when there is an external power supply, the external power supply supplies power to the voltage regulating and stabilizing circuit module through the charging interface, the charging management circuit module and the voltage conversion circuit module, and at the same time charges the lithium battery pack through the charging management circuit module;

[0042] The power management unit can accept the supply of different system voltages from the power storage unit and the external charging interface, and has the characteristics of dual-source and multi-output. It can supply power to the system when the charging interface is plugged in and charge the lithium battery pack at the same time, realizing charging while in use.

[0043] The MCU main control circuit controls the on and off of the motor control MOS transistor according to the temperature control target, drives the fan drive motor to work, and then drives the fan to control the temperature of the semiconductor chip.

[0044] Preferably, before the MCU main control circuit generates a control signal according to the preset control logic, it further includes:

[0045] The temperature of the lithium battery pack is monitored by the battery temperature monitoring NTC thermistor, and the balance charge and discharge protection circuit module is controlled according to the preset temperature protection measures to protect the lithium battery pack from overheating.

[0046] Preferably, after the MCU main control circuit generates a control signal according to the preset control logic, it further includes:

[0047] The MCU main control circuit transmits the control signal to the display circuit module to control the display circuit module to display information such as the temperature, function mode, battery power, charging status, and water quality monitoring value in the constant temperature container, so that the user can understand the working status of the constant temperature container at any time.

[0048] Preferably, when the MCU main control circuit controls the reverse voltage drive module to change the voltage polarity across the semiconductor chip, it further includes:

[0049] When the system is in the cooling mode, the reverse voltage drive module makes one end of the semiconductor chip act as the cold end to cool the substance in the constant temperature container, and the other end acts as the hot end to dissipate heat outward. At the same time, the fan dissipates heat from the hot end to control the temperature.

[0050] When the system is in the heating mode, the reverse voltage drive module makes one end of the semiconductor chip act as the hot end to heat the substance in the constant temperature container, and the other end acts as the cold end to absorb heat outward. At the same time, the fan exchanges heat with the cold end to control the temperature, and the semiconductor chip absorbs heat from the fan air flow to improve the heating efficiency.

[0051] The function of the reverse voltage drive module is to reverse the polarity of the power supply of the semiconductor chip, so that the temperature control system can control the temperature within a wide temperature range of cooling and heating.

[0052] Preferably, during the process of the power management unit providing power for the entire temperature control system, it further includes:

[0053] When the external power source is connected to the system through the charging interface, the MCU main control circuit controls the first power MOS switch tube to turn on and the second power MOS switch tube to turn off, so that the external power source supplies power to the reverse voltage drive module and the voltage management circuit through the charging management circuit module and the voltage conversion circuit module, and at the same time charges the lithium battery pack through the charge and discharge management circuit module;

[0054] When there is no external power supply, the MCU main control circuit controls the second power MOS switch tube to turn on and the first power MOS switch tube to turn off, so that the lithium battery pack supplies power to the reverse voltage drive module through the balanced charge and discharge protection circuit module and the voltage regulation circuit module;

[0055] The voltage management circuit can accept power from the lithium battery pack provided by the voltage regulation and stabilization circuit, and can also accept power from an external power source through a charging interface, forming a dual-source power supply system.

[0056] The present invention provides a temperature control system and control method for a dual-purpose hot and cold constant temperature container, which has the following beneficial effects:

[0057] 1. The present invention can accurately measure the temperature and water quality in the constant temperature container through the coordinated work of the MCU main control circuit and the NTC thermistor, TDS water quality detection probe and other components, and according to the target temperature set by the user through the key function unit, the voltage polarity at both ends of the semiconductor chip is flexibly changed by the reverse voltage drive module to achieve efficient and accurate cooling or heating mode conversion. This intelligent temperature control method not only gets rid of the limitation that traditional thermal insulation containers can only be used for single insulation, but also can quickly adjust to a suitable temperature according to different needs, and realize a wide range of temperature control functions in the cooling and heating temperature zones. Whether it provides users with one-button cooling in the hot summer or rapid heating in the cold winter, it greatly improves the user experience and meets people's diverse needs in a changing environment.

[0058] 2. The present invention adopts a heat pump type active temperature control system, which has higher energy efficiency than the traditional electric heating wire heating method. During the cooling and heating process, the system uses the power management unit to finely control high-power and low-power power supply, reasonably distribute power, and achieve efficient use of power. Especially for portable constant temperature containers, the power management unit can flexibly switch the power supply mode according to the power status of the lithium battery pack, give full play to the performance of the lithium battery pack, and greatly extend the battery life.

[0059] 3. The TDS water quality detection probe built into the system of the present invention can monitor the TDS value of the water quality in the constant temperature container in real time, transmit the data to the MCU main control circuit for processing, and finally present it intuitively on the display circuit module. This function enables users to understand the purity of the drinking water in the container at any time, judge in time whether the water quality meets the standards, and effectively avoid the health problems that may be caused by drinking polluted water. At the same time, the power management unit monitors the real-time temperature of the lithium battery pack through the battery temperature monitoring NTC thermistor, and cooperates with the balanced charge and discharge protection circuit module to prevent the lithium battery pack from overheating and ensure the safe use of the battery.

[0060] 4. The temperature control system of the constant temperature container of the present invention not only has basic functions of constant temperature and temperature adjustment, but also integrates various practical functions such as disinfection and display. Among them, the display circuit module can clearly present key information such as the temperature, function mode, battery power and charging status in the container, enabling users to have a clear understanding of the working conditions of the container. In addition, the system supports charging while using. Whether it is powered by an external power supply or using the built-in lithium battery pack, it can be used normally during the charging process, greatly improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 is a block diagram of the principle of the temperature control system of the hot and cold dual-use constant temperature container of the present invention;

[0062] Figure 2 is a flowchart of the temperature control method for the hot and cold dual-use constant temperature container of the present invention.

[0063] Among them, 1. Semiconductor chip; 2. Overcurrent protector; 3. Inverting voltage drive module; 4. NTC thermistor; 5. TDS water quality detection probe; 6. MCU main control circuit; 7. Button function unit; 8. First power MOS switch tube; 9. Display circuit module; 10. Motor control MOS tube; 11. Fan drive motor; 12. Fan; 13. Voltage management circuit module; 14. Voltage conversion circuit module; 15. Charging interface; 16. Charge and discharge management circuit module; 17. Voltage regulation and stabilization circuit module; 18. Power management unit; 19. Second power MOS switch tube; 20. Balanced charge and discharge protection circuit module; 21. Battery temperature monitoring NTC thermistor; 22. Power supply unit; 23. Lithium battery pack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0064] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0065] Please refer to the attached Figure 1 - Attachment Figure 2 , an embodiment of the present invention provides a temperature control system for a heat - cold dual - use constant - temperature container, including:

[0066] A semiconductor chip 1, used for refrigerating or heating the constant - temperature container;

[0067] An NTC thermistor 4, used for measuring the temperature inside the constant - temperature container and converting the temperature signal into an electrical signal;

[0068] A TDS water quality detection probe 5, used for detecting the TDS value of the water quality inside the constant - temperature container and converting the detection signal into an electrical signal;

[0069] An MCU main control circuit 6, electrically connected to the NTC thermistor 4 and the TDS water quality detection probe 5 respectively, for receiving the temperature signal and the TDS value detection signal, and generating a control signal or display according to a preset control logic;

[0070] Specifically, the TDS water quality detection probe 5 is a sensor for measuring water quality, installed inside the constant - temperature container, used for detecting the TDS value (the content of total dissolved solids in water) of the water quality inside the container, and converting the detected signal into an electrical signal. The MCU main control circuit 6 is connected to the TDS water quality detection probe 5 and the NTC thermistor 4, and is responsible for receiving the electrical signals transmitted by these two sensors. After receiving the temperature signal and the TDS value detection signal, the MCU main control circuit 6 will process and analyze according to the internal preset control logic, and then generate corresponding control signals to achieve intelligent control of the constant - temperature container.

[0071] An inversion voltage drive module 3, electrically connected to the MCU main control circuit 6 and the semiconductor chip 1, for changing the voltage polarity at both ends of the semiconductor chip 1 according to the control signal generated by the MCU main control circuit 6 to achieve the conversion between the refrigeration or heating mode;

[0072] Specifically, the MCU main control circuit 6 is responsible for processing signals and generating control instructions. The inversion voltage drive module 3 receives these instructions and switches the refrigeration or heating mode by changing the positive and negative poles of the voltage at both ends of the semiconductor chip 1, so as to achieve precise adjustment of the temperature inside the constant - temperature container.

[0073] An electric energy management unit 18, used for providing electric energy of different systems for the entire temperature control system and managing the distribution and conversion of electric energy;

[0074] A battery temperature monitoring NTC thermistor 21, used for monitoring the temperature of the lithium - battery pack 23 and transmitting the temperature signal as an electrical signal to the equalizing charging protection circuit 20;

[0075] The voltage management circuit module 13 is electrically connected to the voltage regulation and stabilization circuit 17, the voltage conversion circuit 14, the motor control MOS transistor 10, and the MCU main control circuit 6, and is used to match power sources from different sources, regulate the voltage of electric energy, and supply power to other low-power circuit modules such as the MCU main control circuit 6;

[0076] The voltage conversion circuit module 14 is used to convert the voltage input from an external power source into a voltage suitable for use by the power management unit 18;

[0077] The voltage regulation and stabilization circuit module 17 is electrically connected to the reverse voltage drive module 3 and the voltage management circuit module 13, and is used to realize the voltage regulation and stabilization processing of the output voltage of the power management unit 18, and supply power to the reverse voltage drive module 3 and the voltage management circuit module 13;

[0078] The first power MOS switch transistor 8 and the second power MOS switch transistor 19 are respectively electrically connected to the MCU main control circuit 6, the power management unit 18, and the reverse voltage drive module 3, and are used to switch the power supply selection between the power storage unit 22 and the external power supply interface 15 under the control of the MCU main control circuit 6. The MCU main control circuit 6 simultaneously controls the reverse voltage drive module 3 to realize voltage inversion.

[0079] Specifically, the first power MOS switch transistor 8 and the second power MOS switch transistor 19 are respectively connected to the MCU main control circuit 6, the power management unit 18, and the reverse voltage drive module 3. The MCU main control circuit 6 controls the conduction and cut-off of these two switch transistors to realize the on-off control of the power supply of the power management unit 18 to the reverse voltage drive module 3, thereby ensuring that the system accurately adjusts the power supply state according to the operation requirements.

[0080] The motor control MOS transistor 10 is electrically connected to the MCU main control circuit 6 and the fan drive motor 11, and is used to drive the fan drive motor 11 to work under the control of the MCU main control circuit 6.

[0081] The display circuit module 9 is electrically connected to the MCU main control circuit 6, and is used to provide a display information signal for the MCU main control circuit 6 so that the MCU main control circuit 6 can perform relevant control operations.

[0082] It further includes:

[0083] The key function unit 7 is electrically connected to the MCU main control circuit 6, and is used to input the operation instructions of the user and convert the operation instructions into electrical signals and transmit them to the MCU main control circuit 6;

[0084] The power supply unit 22 is electrically connected to the power management unit 18, and is used to store electric energy and provide power for the power management unit 18;

[0085] The lithium battery pack 23 is arranged inside the power supply unit 22 and is used for storing electric energy;

[0086] The balancing charge and discharge protection circuit module 20 is electrically connected to the lithium battery pack 23 and the electric energy management unit 18, and is used for balancing the charge and discharge of the lithium battery pack 23 and protecting it;

[0087] The charging interface 15 is connected to the voltage conversion circuit 14 and the charge and discharge management circuit 16. The voltage conversion circuit 14 supplies power to the semiconductor chip 1 and the voltage management circuit 13;

[0088] The charge and discharge management circuit module 16 is electrically connected to the charging interface 15 and the electric energy management unit 18, and is used for managing the charging process of the external power supply to the power supply unit 22 and the discharge process management of the power supply unit 22;

[0089] The fan drive motor 11 is electrically connected to the motor control MOS transistor 10 and is used for driving the fan 12 to work;

[0090] The fan 12 is arranged near the semiconductor chip 1 and is used for heat exchange and temperature control of the semiconductor chip 1. The fan drive motor 11 is electrically connected to the MCU main control circuit 6 through the motor control MOS transistor 10. The MCU main control circuit 6 controls the on-off of the motor control MOS transistor 10 according to the temperature regulation target, and further controls the working state of the fan drive motor 11. The fan drive motor 11 drives the fan 12 to control the temperature of the semiconductor chip 1.

[0091] The display circuit module is electrically connected to the MCU main control circuit 6 and is used for displaying information such as the temperature inside the constant temperature container, the function mode, the battery power and charging status, and the water quality monitoring value;

[0092] The overcurrent protector 2 is arranged on the circuit between the electric energy management unit 18 and the reverse voltage drive module 3 and is used for overcurrent protection of the circuit.

[0093] The display circuit module is composed of a display screen or a display circuit and is used for displaying the temperature inside the heat preservation container, the function mode, the battery power and charging status, the water quality monitoring value, as well as the working status such as the screen lock state and the screen off state.

[0094] A temperature regulation control method for a heat and cold dual-use constant temperature container includes the following steps:

[0095] Measure the temperature inside the constant temperature container through the NTC thermistor 4 and convert the temperature signal into an electrical signal and transmit it to the MCU main control circuit 6;

[0096] Before the MCU main control circuit 6 generates a control signal according to the preset control logic, it further includes:

[0097] The temperature of the lithium battery pack 23 is monitored by the battery temperature monitoring NTC thermistor 21, and the temperature signal is converted into an electrical signal and transmitted to the power management unit 18;

[0098] Specifically, in the system, the NTC thermistor 4 and the battery temperature monitoring NTC thermistor 21 are respectively responsible for monitoring the temperature inside the constant temperature container and the lithium battery pack 23, and converting the temperature change into an electrical signal. The signal of the NTC thermistor 4 is transmitted to the MCU main control circuit 6 for generating subsequent control signals. The signal of the battery temperature monitoring NTC thermistor 21 is transmitted to the power management unit 18 to help it monitor the temperature of the lithium battery pack 23 to ensure the safe operation of the battery.

[0099] The power management unit 18 controls the balanced charge and discharge protection circuit module 20 to perform overheat protection on the lithium battery pack 23 according to the received temperature signal of the lithium battery pack 23, preventing the lithium battery pack 23 from overheating.

[0100] The TDS value of the water quality in the constant temperature container is detected by the TDS water quality detection probe 5, and the detection signal is converted into an electrical signal and transmitted to the MCU main control circuit 6;

[0101] The operation instruction of the user is input through the key function unit 7, and the operation instruction is converted into an electrical signal and transmitted to the MCU main control circuit 6;

[0102] The MCU main control circuit 6 generates a control signal according to the received temperature signal, TDS value detection signal and user operation instruction according to the preset control logic;

[0103] The MCU main control circuit 6 transmits the generated control signal to the reverse voltage drive module 3, controls the reverse voltage drive module 3 to change the voltage polarity at both ends of the semiconductor chip 1, and realizes the conversion between the refrigeration or heating mode, so that the temperature in the constant temperature container reaches the set target;

[0104] Specifically, the MCU main control circuit 6 receives the temperature signal from the NTC thermistor 4, the water quality signal of the TDS water quality detection probe 5 and the operation instruction input by the user through the key function unit 7. According to this information, the MCU main control circuit 6 generates corresponding control signals according to the preset control logic and transmits them to the reverse voltage drive module 3. The reverse voltage drive module 3 adjusts the voltage polarity at both ends of the semiconductor chip 1 according to the control signal, thereby realizing the switching between the refrigeration or heating mode and ensuring that the temperature in the constant temperature container is stable at the target set by the user.

[0105] The power management unit 18 supplies power to the entire temperature control system and manages the distribution and conversion of power according to the working state of the system, including discharging from the lithium battery pack 23 to the voltage regulating and stabilizing circuit module 17 through the balanced charge and discharge protection circuit module 20 when there is no external power supply, and after the voltage regulating and stabilizing circuit module 17 regulates and stabilizes the voltage, supplying power to the reverse voltage drive module 3, and when there is an external power supply, the external power supply supplies power to the voltage regulating and stabilizing circuit module 17 through the charging interface 15, the charging management circuit module 16 and the voltage conversion circuit module 14, and at the same time charges the lithium battery pack 23 through the charging management circuit module 16;

[0106] Specifically, the power management unit 18 is responsible for supplying power to the entire temperature control system and performing power distribution and conversion according to the working state of the system. When there is no external power supply, the lithium battery pack 23 discharges to the voltage regulating and stabilizing circuit module 17 through the balanced charge and discharge protection circuit module 20. After the voltage regulating and stabilizing circuit module 17 regulates and stabilizes the voltage, it supplies power to the reverse voltage drive module 3 and the voltage management circuit 13. When there is an external power supply, the external power supply supplies power to the voltage regulating and stabilizing circuit module 17 through the charging interface 15, the charging management circuit module 16 and the voltage conversion circuit module 14, and at the same time charges the lithium battery pack 23 through the charge and discharge management circuit module 16 to ensure the normal operation of the system.

[0107] The power management unit 18 can accept the supply of different system voltages from the power storage unit 22 and the external charging interface 15, and has the characteristics of dual-source and multi-output, which can meet the power supply for the system operation when the charging interface 15 is plugged in and charge the lithium battery pack 23 at the same time, realizing charging while using;

[0108] The MCU main control circuit 6 controls the on and off of the motor control MOS tube 10 according to the temperature control target, drives the fan drive motor 11 to work, and then drives the fan 12 to control the temperature of the semiconductor chip 1.

[0109] Specifically, the MCU main control circuit 6 controls the conduction and cutoff of the motor control MOS tube 10 according to the set temperature control target. When temperature adjustment is required, the MCU main control circuit 6 sends a signal to turn on the motor control MOS tube 10, and the current then flows into the fan drive motor 11 to drive it to rotate, and then drives the fan 12 to rotate. When the fan 12 rotates, it will exchange heat and control the temperature of the semiconductor chip 1 to ensure the efficient operation of the semiconductor chip 1 and maintain the stability of the temperature in the constant temperature container. When the temperature control target changes, the MCU main control circuit 6 adjusts the control of the motor control MOS tube 10 in real time, adjusts the rotation speed of the fan 12, and realizes the dynamic temperature control of the semiconductor chip 1 to meet the temperature requirements in different situations.

[0110] After the MCU main control circuit 6 generates a control signal according to the preset control logic, it further includes:

[0111] The MCU main control circuit 6 transmits control signals to the display circuit module, controlling the display circuit module to display information such as the temperature inside the constant temperature container, function mode, battery power and charging status, water quality monitoring value, etc., so that users can understand the working status of the constant temperature container at any time.

[0112] Specifically, this module can be a display screen or a digital tube display circuit. After receiving the signal, the display circuit module will clearly present important information such as the real-time temperature inside the constant temperature container, the current function mode, the remaining battery power and charging progress, and the water quality monitoring data. Such a design enables users to intuitively understand the working status of the constant temperature container, so as to timely and accurately adjust and optimize the operation of the container according to the displayed information, ensuring that it always meets the user's usage requirements.

[0113] When the MCU main control circuit 6 controls the reverse voltage drive module 3 to change the voltage polarity across the semiconductor chip 1, it also includes:

[0114] When the system is in the cooling mode, the reverse voltage drive module 3 makes one end of the semiconductor chip 1 act as the cold end to cool the substance inside the constant temperature container, and the other end acts as the hot end to dissipate heat outward. At the same time, the fan 12 dissipates heat from the hot end to control the temperature;

[0115] When the system is in the heating mode, the reverse voltage drive module 3 makes one end of the semiconductor chip 1 act as the hot end to heat the substance inside the constant temperature container, and the other end acts as the cold end to absorb heat outward. At the same time, the fan 12 exchanges heat with the cold end for temperature control, and the semiconductor chip 1 absorbs heat from the airflow of the fan 12 to improve the heating efficiency.

[0116] The function of the reverse voltage drive module 3 is to reverse the polarity of the power supply to the semiconductor chip 1, enabling the temperature control system to control the temperature within a wide temperature range of cooling and heating.

[0117] During the process of the power management unit 18 providing electrical energy for the entire temperature control system, it also includes:

[0118] When an external power supply is connected to the system through the charging interface 15, the MCU main control circuit 6 controls the first power MOS switch tube 8 to turn on and the second power MOS switch tube 19 to turn off, enabling the external power supply to supply power to the reverse voltage drive module 3 and the voltage management circuit 13 through the charging management circuit module 16 and the voltage conversion circuit module 14, and at the same time charging the lithium battery pack 23 through the charging management circuit module 16;

[0119] When there is no external power supply, the MCU main control circuit 6 controls the second power MOS switch tube 19 to turn on and the first power MOS switch tube 8 to turn off, enabling the lithium battery pack 23 to supply power to the reverse voltage drive module 3 through the balanced charge and discharge protection circuit module 20 and the voltage regulation and stabilization circuit module 17;

[0120] The voltage management circuit 13 can receive the electric energy from the lithium battery pack 23 provided by the voltage regulation and stabilization circuit 17, and can also receive the electric energy from an external power supply through the charging interface 15, which is a dual-source power supply system.

[0121] Specifically, the MCU main control circuit 6 intelligently manages the power supply mode of the system. When an external power supply is connected, the MCU main control circuit 6 controls the first power MOS switch tube 8 to conduct and the second power MOS switch tube 19 to cut off. The external power supply supplies power to the reverse voltage drive module 3 and the voltage management circuit 13 through the charging management circuit module 16, the voltage conversion circuit module 14, and the voltage regulation and stabilization circuit module 17, and charges the lithium battery pack 23 through the charging management circuit module 16. When there is no external power supply, the MCU main control circuit 6 controls the second power MOS switch tube 19 to conduct and the first power MOS switch tube 8 to cut off. The lithium battery pack 23 supplies power to the reverse voltage drive module 3 through the balanced charge and discharge protection circuit module 20 and the voltage regulation and stabilization circuit module 17 to ensure the continuous operation of the system.

[0122] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature control system for a thermostatic container with dual hot and cold functions, characterized in that, Comprising: A semiconductor chip (1) for cooling or heating a constant temperature container; An NTC thermistor (4) for measuring the temperature inside the constant temperature container and converting the temperature signal into an electrical signal; A TDS water quality detection probe (5) for detecting the TDS value of the water quality inside the constant temperature container and converting the detection signal into an electrical signal; An MCU main control circuit (6) electrically connected to the NTC thermistor (4) and the TDS water quality detection probe (5) respectively, for receiving the temperature signal and the TDS value detection signal, and generating a control signal or display according to a preset control logic; An inversion voltage drive module (3) electrically connected to the MCU main control circuit (6) and the semiconductor chip (1), for changing the voltage polarity across the semiconductor chip (1) according to the control signal generated by the MCU main control circuit (6) to achieve the conversion and on / off of the cooling or heating mode; An electric energy management unit (18) for providing electric energy of different systems for the entire temperature control system and managing the distribution and conversion of electric energy; A battery temperature monitoring NTC thermistor (21) for monitoring the temperature of the lithium battery pack (23) and transmitting the temperature signal as an electrical signal to the equalizing charge protection circuit (20); A voltage management circuit module (13) electrically connected to the voltage regulating and stabilizing circuit (17), the voltage conversion circuit (14), the motor control MOS transistor (10), and the MCU main control circuit (6), for matching power supplies from different sources, performing voltage regulation on the electric energy voltage, and supplying power to other low-power circuit modules such as the MCU main control circuit (6); A voltage conversion circuit module (14) for converting the voltage input from an external power supply into a voltage suitable for use by the electric energy management unit (18); A voltage regulating and stabilizing circuit module (17) electrically connected to the inversion voltage drive module (3) and the voltage management circuit module (13), for performing voltage regulation and stabilization processing on the output voltage of the electric energy management unit (18) and supplying power to the inversion voltage drive module (3) and the voltage management circuit module (13); A first power MOS switch transistor (8) and a second power MOS switch transistor (19) electrically connected to the MCU main control circuit (6), the electric energy management unit (18), and the inversion voltage drive module (3) respectively, for switching the power supply selection between the power storage unit (22) and the external power supply interface (15) under the control of the MCU main control circuit (6), and the MCU main control circuit (6) simultaneously controls the inversion voltage drive module (3) to achieve voltage inversion. A motor control MOS transistor (10) electrically connected to the MCU main control circuit (6) and the fan drive motor (11), for driving the fan drive motor (11) to work under the control of the MCU main control circuit (6). A display circuit module (9) electrically connected to the MCU main control circuit (6), for providing a display information signal to the MCU main control circuit (6) so that the MCU main control circuit (6) can perform relevant control operations.

2. The temperature control system of a heat and cold dual-use constant temperature container according to claim 1, characterized in that, It further includes: A key function unit (7), electrically connected to the MCU main control circuit (6), is configured to input operation instructions of a user and convert the operation instructions into electrical signals for transmission to the MCU main control circuit (6); A power supply unit (22), electrically connected to the power management unit (18), is configured to store electrical energy and provide power to the power management unit (18); A lithium battery pack (23) is disposed within the power supply unit (22) and is configured to store electrical energy; An equalizing charge and discharge protection circuit module (20), electrically connected to the lithium battery pack (23) and the power management unit (18), is configured to perform equalizing charge and discharge and protection on the lithium battery pack (23); A charging interface (15) is connected to the voltage conversion circuit (14) and the charge and discharge management circuit (16). The voltage conversion circuit (14) supplies power to the semiconductor chip (1) and the voltage management circuit (13); A charge and discharge management circuit module (16), electrically connected to the charging interface (15) and the power management unit (18), is configured to manage the charging process of the power supply unit (22) by an external power supply and the discharge process management of the power supply unit (22); A fan driving motor (11), electrically connected to the motor control MOS transistor (10), is configured to drive the fan (12) to operate; A fan (12) is disposed near the semiconductor chip (1) and is configured to perform heat exchange and temperature control on the semiconductor chip (1); A display circuit module, electrically connected to the MCU main control circuit (6), is configured to display information such as the temperature, function mode, battery power, charging status, and water quality monitoring value within the constant temperature container; An overcurrent protector (2) is disposed on the circuit between the power management unit (18) and the reverse voltage driving module (3) and is configured to perform overcurrent protection on the circuit.

3. The temperature control system of a heat and cold dual-use constant temperature container according to claim 1, wherein The fan driving motor (11) is electrically connected to the MCU main control circuit (6) through the motor control MOS transistor (10). The MCU main control circuit (6) controls the on / off of the motor control MOS transistor (10) according to the temperature adjustment state, thereby controlling the operating state of the fan driving motor (11). The fan driving motor (11) drives the fan (12) to perform temperature control on the semiconductor chip (1).

4. The temperature control system of a heat and cold dual-use constant temperature container according to claim 2, wherein The display circuit module is composed of a display screen or a display circuit module and is configured to display the temperature, function mode, battery power, charging status, water quality monitoring value, screen locking state, and screen-off and other operating states within the heat preservation container.

5. A temperature control method for a thermostatic container with dual cold and heat functions, characterized in that, Applied to the temperature control system of the hot and cold dual-use constant temperature container according to any one of claims 1 to 4, the method includes the following steps: Measure the temperature within the constant temperature container through the NTC thermistor (4) and convert the temperature signal into an electrical signal for transmission to the MCU main control circuit (6); Detect the TDS value of the water quality within the constant temperature container through the TDS water quality detection probe (5) and convert the detection signal into an electrical signal for transmission to the MCU main control circuit (6); Input the operation instructions of the user through the key function unit (7) and convert the operation instructions into electrical signals for transmission to the MCU main control circuit (6); The MCU main control circuit (6) generates a control signal according to the received temperature signal, TDS value detection signal, and user operation instructions according to a preset control logic; The MCU main control circuit (6) transmits the generated control signal to the reverse voltage driving module (3), controls the reverse voltage driving module (3) to change the voltage polarity across the semiconductor chip (1), and realizes the conversion between the refrigeration and heating modes, so as to make the temperature in the constant temperature container reach the set target; The power management unit (18) supplies power to the entire temperature control system, and manages the distribution and conversion of power according to the working state of the system, including discharging from the lithium battery pack (23) to the voltage regulating and stabilizing circuit module (17) through the balancing charge and discharge protection circuit module (20) when there is no external power supply. After the voltage regulating and stabilizing circuit module (17) regulates and stabilizes the voltage, it supplies power to the reverse voltage driving module (3) and the voltage management circuit (13), and when there is an external power supply, the external power supply supplies power to the voltage regulating and stabilizing circuit module (17) through the charging interface (15), the charging management circuit module (16) and the voltage conversion circuit module (14), and at the same time charges the lithium battery pack (23) through the charging management circuit module (16); The power management unit (18) can accept the supply of different system voltages from the power storage unit (22) and the external charging interface (15), and has the characteristics of dual-source and multi-output, which can meet the power supply of the system during charging when the charging interface (15) is plugged in and charge the lithium battery pack (23) at the same time, realizing charging while using; The MCU main control circuit (6) controls the on-off of the motor control MOS transistor (10) according to the temperature control target, drives the fan driving motor (11) to work, and then drives the fan (12) to control the temperature of the semiconductor chip (1).

6. A temperature control method for a heat and cold dual-use constant temperature container according to claim 5, characterized in that, Before the MCU main control circuit (6) generates a control signal according to the preset control logic, it further includes: Monitoring the temperature of the lithium battery pack (23) through the battery temperature monitoring NTC thermistor (21), and controlling the balancing charge and discharge protection circuit module (20) to perform overheat protection on the lithium battery pack (23) according to the preset temperature protection measures to prevent the lithium battery pack (23) from overheating.

7. A temperature control method for a heat and cold dual-use constant temperature container according to claim 5, characterized in that After the MCU main control circuit (6) generates a control signal according to the preset control logic, it further includes: The MCU main control circuit (6) transmits the control signal to the display circuit module, and controls the display circuit module to display information such as the temperature in the constant temperature container, the function mode, the battery power and charging status, and the water quality monitoring value in order for the user to understand the working state of the constant temperature container at any time.

8. A temperature control method for a hot and cold dual-use constant temperature container according to claim 5, characterized in that When the MCU main control circuit (6) controls the reverse voltage driving module (3) to change the voltage polarity across the semiconductor chip (1), it further includes: When the system is in the refrigeration mode, the reverse voltage driving module (3) makes one end of the semiconductor chip (1) serve as the cold end to refrigerate the substance in the constant temperature container, and the other end serve as the hot end to dissipate heat outward. At the same time, the fan (12) dissipates heat from the hot end to control the temperature; When the system is in the heating mode, the reverse voltage driving module (3) makes one end of the semiconductor chip (1) serve as the hot end to heat the substance in the constant temperature container, and the other end serve as the cold end to absorb heat outward. At the same time, the fan (12) exchanges heat with the cold end to control the temperature, and the semiconductor chip (1) absorbs heat from the air flow of the fan (12) to improve the heating efficiency; The function of the reverse voltage driving module (3) is to reverse the polarity of the power supply to the semiconductor wafer (1), enabling the temperature control system to control the temperature within a wide temperature range for both refrigeration and heating.

9. A temperature control method for a temperature-controlled container with dual hot and cold functions according to claim 5, characterized in that During the process of the power management unit (18) supplying power to the entire temperature control system, it also includes: When an external power supply is connected to the system through the charging interface (15), the MCU main control circuit (6) controls the first power MOS switch tube (8) to turn on and the second power MOS switch tube (19) to turn off, enabling the external power supply to supply power to the reverse voltage driving module (3) and the voltage management circuit (13) through the charging management circuit module (16) and the voltage conversion circuit module (14), and simultaneously charging the lithium battery pack (23) through the charge and discharge management circuit module (16); When there is no external power supply, the MCU main control circuit (6) controls the second power MOS switch tube (19) to turn on and the first power MOS switch tube (8) to turn off, enabling the lithium battery pack (23) to supply power to the reverse voltage driving module (3) through the balanced charge and discharge protection circuit module (20) and the voltage regulating and stabilizing circuit module (17); The voltage management circuit (13) can receive electrical energy from the lithium battery pack (23) provided by the voltage regulating and stabilizing circuit (17), or electrical energy from the external power supply through the charging interface (15), and is a dual-source power supply system.

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