Integrated multifunctional liquid medium near field temperature control system

Abstract

The present application relates to the technical fields of temperature control, and especially relates to a kind of integrated multifunctional liquid medium near-field temperature control system, including main body composite fabric layer, medium transmission pipe network, heat manager, heat dissipation main body, heat dissipation mechanism and central processing unit, the main body composite fabric layer is used to build multilayer functionalization hierarchical composite structure, and can be adapted to multiple terminal product forms to meet the needs of different temperature control scenes, the medium transmission pipe network is arranged in the main body composite fabric layer, for the delivery and circulation of cold and hot medium, the inside of the heat manager is provided with PTC ceramic heating assembly and thermoelectric refrigerator, the present application is integrated in compact structure by heat management, control, heat dissipation and other core modules, compared with traditional split type temperature control equipment, it is not necessary to complex assembly and debugging, one person can quickly carry and deploy, simultaneously, through the variable soft structure design, break the shackles of traditional rigid frame, adopt integrated design, widen the use boundary.

Description

An integrated multifunctional liquid medium near-field temperature control system Technical Field

[0001] This invention relates to the field of temperature control technology, and in particular to an integrated multifunctional liquid medium near-field temperature control system. Background Technology

[0002] Existing temperature control systems are widely used in various fields such as home, medical, and industrial applications. However, as industries increasingly demand higher precision, flexibility, and adaptability in temperature control, traditional temperature control technologies are gradually revealing many insurmountable limitations. From a functional perspective, traditional temperature control devices mostly only have a single cooling or heating function, which cannot meet the needs for bidirectional temperature regulation in complex and ever-changing environments. Furthermore, traditional temperature control systems often disperse the cooling and heating units, control systems, and heat dissipation devices, resulting in large and heavy equipment that requires complex assembly and debugging processes. In scenarios requiring frequent relocation, such as emergency medical care and mobile offices, the handling and use of such equipment is extremely inconvenient, greatly limiting its application scope. For example, traditional portable medical temperature control equipment requires professional personnel to disassemble and debug during transfer, severely impacting efficiency and response speed. Traditional temperature control systems are limited by fixed rigid structures, resulting in severe constraints on usability. For instance, in scenarios such as field medical rescue and long-distance transportation, rigid temperature control equipment is difficult to adapt to small or irregular storage spaces, thus limiting its application scenarios.

[0003] Based on the above, we propose an integrated multifunctional liquid medium near-field temperature control system to solve the aforementioned problems. Summary of the Invention

[0004] This invention provides an integrated multifunctional liquid medium near-field temperature control system to solve the problems existing in the prior art.

[0005] The technical problem solved by this invention is achieved by the following technical solution:

[0006] An integrated multifunctional liquid medium near-field temperature control system includes a main composite fabric layer, a medium transmission pipeline network, a heat manager, a heat dissipation body, a heat dissipation mechanism, and a central processing unit. The main composite fabric layer is used to construct a multi-layered functional hierarchical composite structure and can be adapted to various terminal product forms to meet the needs of different temperature control scenarios. The medium transmission pipeline network is located within the main composite fabric layer and is used for the transportation and circulation of hot and cold media. The heat manager internally houses a PTC ceramic heating element for heating the liquid medium and a thermoelectric cooler for cooling the liquid medium. The heat manager is connected to both ends of the medium transmission pipeline network through two sets of circulation pipelines for heating or cooling the liquid medium. Each circulation pipeline is equipped with a circulation pump to achieve bidirectional alternating circulation of the liquid medium through a symmetrical flow channel design. The flow guide area inside the heat manager is equipped with a first temperature sensor for detecting the temperature of the heat transfer medium. The heat dissipation body is connected to the hot end of the thermoelectric cooler to dissipate heat from the hot end of the thermoelectric cooler. The heat dissipation body is equipped with a second temperature sensor for detecting the temperature of the heat dissipation body. The heat dissipation mechanism includes a standard heat dissipation unit and an enhanced heat dissipation unit, which are activated to dissipate heat when the heat dissipation body is in different temperature ranges. The central processing unit controls the temperature of the heat manager and the heat dissipation mechanism based on the temperature signals detected by the first and second temperature sensors.

[0007] Preferably, the heat dissipation body includes a heat dissipation substrate and heat dissipation fins arranged in an array on the heat dissipation substrate. The heat dissipation substrate forms a contact surface with the hot end of the thermoelectric cooler. The heat dissipation substrate has a capillary network inside, and the two ends of the capillary network are respectively connected to an external liquid circulation system through quick-connect structures.

[0008] Preferably, the standard heat dissipation unit includes a blower located on one side of the heat dissipation body for air convection heat dissipation.

[0009] Preferably, the enhanced heat dissipation unit includes a circulating pump body, a liquid reservoir and an evaporator connected in sequence by pipes, as well as a centrifugal fan for generating airflow, a spiral duct and an atomizing component for generating an atomization effect.

[0010] Preferably, it also includes pressure-controlled flow stabilizing valves installed on the two sets of circulation pipelines. The pressure-controlled flow stabilizing valves adopt a passive self-adjusting flow stabilizing control structure, with variable diameter elastic pipelines arranged symmetrically inside. The flow rate of the infusion and return hoses is controlled by the expansion force of the hoses to achieve a dual-channel mode of media isolation or mixed flow. When the media transmission pipeline is squeezed and the flow is interrupted, a local circulation path is formed.

[0011] Preferably, the main composite fabric layer consists of a heat exchange layer, a functional layer, a thermal insulation coating, and a protective layer from the inside out, and the media transmission pipeline is located within the functional layer.

[0012] Preferably, the circulation pipeline is also provided with a connecting hose, which is detachably connected to the media transmission network through a quick-connect structure.

[0013] Preferably, the connecting hose is provided with a hose pressure valve, and the hose pressure valve is composed of a spinning drive mechanism and a movable clamping assembly forming a core sealing unit.

[0014] Preferably, the circulation pipeline is also equipped with a liquid level sensor.

[0015] The beneficial effects of this invention are:

[0016] By integrating core modules such as thermal management, control, and heat dissipation into a compact structure, it eliminates the need for complex assembly and debugging compared to traditional split-type temperature control equipment. It can be quickly carried and deployed by a single person, significantly improving the equipment's response efficiency and meeting the temperature control requirements of high-frequency mobile scenarios. Furthermore, through the PTC ceramic heating element and thermoelectric cooler within the thermal manager, combined with the temperature detection of the first temperature sensor and the intelligent control of the central processing unit, it can quickly and accurately adjust the temperature according to different temperature control requirements, effectively solving the problems of temperature overshoot and large fluctuations in traditional systems. It ensures that the temperature is always kept within the set range, meeting the application scenarios with extremely high temperature accuracy requirements.

[0017] By breaking free from the constraints of traditional rigid frameworks through a variable soft structure design, and adopting an integrated design, the application boundaries are broadened. The main composite fabric layer can be adapted to various end product forms, meeting the needs of different temperature control scenarios, such as clothing, bedding, and containers, thus realizing a single system for multiple scenarios. At the same time, components such as the medium transmission network and circulation pipeline are connected by a quick-connect structure, which facilitates disassembly and replacement, and is easy to integrate and work collaboratively with other equipment. It has excellent heat dissipation performance, adopting a combination of standard heat dissipation units and enhanced heat dissipation units, and automatically switching the heat dissipation mode according to the temperature of the heat dissipation main body, ensuring that the heat at the hot end of the thermoelectric cooler can be dissipated in time, effectively preventing the system from being affected by overheating and affecting its performance and lifespan. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of the heat-conducting medium circulation structure provided by the present invention;

[0020] Figure 2 is a schematic diagram showing the location distribution of the heat manager and heat dissipation body provided by the present invention;

[0021] Figure 3 is a schematic diagram showing the location distribution of the heat manager and heat dissipation body provided by the present invention.

[0022] Figure 4 is a schematic diagram of the heat manager structure provided by the present invention;

[0023] Figure 5 is a schematic diagram of the heat dissipation body in this invention;

[0024] Figure 6 is a schematic diagram of the enhanced heat dissipation unit in this invention;

[0025] Figure 7 is a cross-sectional schematic diagram of the spiral duct in this invention;

[0026] Figure 8 is a flowchart of the external liquid circulation system provided in this invention;

[0027] Figure 9 is a schematic diagram of the overpressure protection state of the pressure-controlled flow regulator valve in this invention;

[0028] Figure 10 is a schematic diagram of the return water state of the pressure-controlled flow stabilizing valve in this invention;

[0029] Figure 11 is a schematic diagram of the water outlet state of the pressure-controlled flow stabilizing valve in this invention;

[0030] Figure 12 is a schematic diagram of the cross-section of the main composite fabric layer in this invention;

[0031] Figure 13 is a schematic diagram of the hose pressure valve in this invention.

[0032] Figure 14 is a schematic diagram of the hose pressure valve in this invention.

[0033] Figure 15 is a block diagram of the system control logic provided in this invention.

[0034] In the diagram, 1. Main composite fabric layer; 11. Heat exchange layer; 12. Functional layer; 13. Thermal insulation coating; 14. Protective layer; 2. Medium transmission pipeline; 3. Heat manager; 31. PTC ceramic heating element; 32. Thermoelectric cooler; 33. Circulation pipeline; 34. Flow guiding area; 301. Circulation pump; 302. First temperature sensor; 303. Liquid level sensor; 4. Heat dissipation body; 41. Second temperature sensor; 42. Heat dissipation substrate. ; 43. Heat dissipation fins; 44. Capillary network; 5. Blower; 51. Circulating pump body; 52. Liquid receiver; 53. Evaporator; 54. Centrifugal fan; 55. Spiral duct; 56. Atomizing component; 6. Pressure-controlled flow regulator; 61. Valve body; 62. Intermediate transmission component; 63. Adjustment chamber; 64. Infusion hose; 65. Auxiliary return hose; 7. Connecting hose; 71. Hose pressure valve; 701. Drive component; 702. Movable pressure block. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0036] Referring to Figures 1-15, an integrated multifunctional liquid medium near-field temperature control system includes a main composite fabric layer 1. The main composite fabric layer 1 is used to construct a multi-layered functional hierarchical composite structure and can be adapted to various terminal product forms to meet different temperature control scenario requirements. Inside the main composite fabric layer 1 is a medium transmission network 2 for the transport and circulation of hot and cold media. It also includes a heat manager 3, which includes a container for holding the heat-conducting medium. Inside the container, two semi-enclosed flow guide baffles are staggered vertically, dividing the container into a flow guide zone 34 between the two baffles and cold and hot zones located on either side of the flow guide zone 34. The upper opening of the flow guide zone 34 faces the cold zone, and the lower opening faces the hot zone. The cold and hot zones are cooled and heated respectively by a thermoelectric cooler 32 and a PTC ceramic heating element 31. The ceramic heating element 31 is a heating device made using the properties of ceramic materials. The heat manager 3 is connected to both ends of the medium transmission network 2 via two sets of circulation pipes 33, each equipped with a circulation pump 301 to deliver heating or cooling medium into the medium transmission network 2. A first temperature sensor 302 for detecting the temperature of the heat-conducting medium is located in the flow guide zone 34. The cold zone is cooled by the cold end of the thermoelectric cooler 32, which is based on the Peltier effect. When current passes through the thermoelectric cooler 32, a temperature difference is generated at its two ends, lowering the temperature at the cold end and thus cooling the heat-conducting medium in the cold zone. This allows for precise temperature control of the cold zone. The hot zone is heated by the PTC ceramic heating element 31, which has advantages such as high thermal efficiency and good safety. As shown in Figure 15, the thermoelectric cooler 32 operates based on the Peltier effect, determining cooling or heating by the direction of the current, and the magnitude of the current affects the intensity of cooling or heating. PWM By adjusting the duty cycle to change the average input power of the thermoelectric cooler 32, precise control of cooling or heating capacity can be achieved. The resistance of the PTC ceramic heating element 31 increases with temperature and has self-limiting temperature characteristics. By adjusting the duty cycle to change the average power through PWM control, the heating rate and final stable temperature are indirectly controlled. When the first temperature sensor 302 detects that the temperature is higher than the set value, the thermoelectric cooler 32 starts up. After the temperature drops to the set range, the power is reduced to maintain operation. When the temperature is lower than the set value, the PTC ceramic heating element 31 starts up. After the temperature rises to the set range, the power is reduced to maintain operation, thereby maintaining the stability of the hot zone temperature. The cold zone and the hot zone are connected by the circulation pipe 33 to form a closed-loop system.

[0037] To dissipate heat from the hot end of the thermoelectric cooler 32, a heat dissipation body 4 is connected to the hot end of the thermoelectric cooler 32. The heat dissipation body 4 is equipped with a second temperature sensor 41 for detecting the temperature of the heat dissipation body 4. The heat dissipation body 4 includes a heat dissipation substrate 42 and heat dissipation fins 43 arranged in an array on the heat dissipation substrate 42. The heat dissipation substrate 42 forms a shaped contact surface with the hot end of the thermoelectric cooler 32. The heat dissipation substrate 42 can be made of aluminum, which can quickly and effectively transfer heat from the heat source to the surrounding environment, and is lighter in weight, ensuring efficient heat conduction while reducing the weight of the device. When air flows between the heat dissipation fins 43, it carries away a large amount of heat, achieving efficient heat exchange. The heat dissipation fins 43 and the heat dissipation substrate 42 dissipate heat from the hot end of the thermoelectric cooler 32. Heat is dissipated through heat dissipation, and the heat dissipation substrate 42 has a capillary network 44 inside. The two ends of the capillary network 44 are connected to the external liquid circulation system through quick-connect structures. When the hot end of the thermoelectric cooler 32 generates a large amount of heat, the coolant in the external liquid circulation system circulates through the capillary network 44. After absorbing heat in the capillary network 44, the coolant flows back to the external liquid circulation system for heat dissipation, and then circulates back to the capillary network 44, forming a highly efficient heat dissipation cycle. This liquid circulation heat dissipation method can quickly remove heat and effectively reduce the temperature of the heat dissipation body 4. The heat dissipation body 4 also has two heat dissipation modes: a standard heat dissipation mode achieved through a standard heat dissipation unit and an enhanced heat dissipation mode achieved through an enhanced heat dissipation unit.

[0038] The setting of the second temperature sensor 41 provides a basis for intelligent control of the entire heat dissipation process. It can monitor the temperature of the heat dissipation body 4 in real time and feed the temperature signal back to the central processing unit. The central processing unit intelligently adjusts the heat dissipation strategy according to the preset temperature threshold and the actual monitored temperature, and performs standard heat dissipation mode or enhanced heat dissipation mode.

[0039] The standard heat dissipation unit includes a blower 5 located on one side of the heat dissipation body 4. The blower 5 can be a blower 5, an axial flow fan, or other devices, and forms a corresponding positional relationship with the heat dissipation body 4. When working, the blower 5 forces air to flow across the surface of the heat dissipation body 4, accelerating the heat exchange between the air and the heat dissipation body 4. It is suitable for conventional heat dissipation needs and can quickly remove heat from the surface of the heat dissipation substrate 42 and the heat dissipation fins 43, reducing the operating temperature of the equipment.

[0040] When the second temperature sensor 41 detects that the temperature range exceeds the set threshold and the standard heat dissipation mode cannot meet the heat dissipation requirements, an enhanced heat dissipation mode is switched. This is achieved through an enhanced heat dissipation unit consisting of a circulating pump body 51, a liquid reservoir 52, and an evaporator 53 connected in sequence by pipes, as well as a centrifugal fan 54 for generating airflow, a spiral duct 55, and an atomizing component 56 for generating an atomization effect. The atomizing component 56 is located inside the spiral duct 55, and the centrifugal fan 54 is connected to the spiral duct 55. The air outlet of the spiral duct 55 corresponds to the evaporator 53, which is used to form a two-phase flow of air and mist generated by the atomizing component 56 through the centrifugal fan 54, thereby enhancing the heat dissipation effect of the evaporator 53 and the heat dissipation body 4. The atomizing component 56 can be a piezoelectric ultrasonic atomizer. The droplet size generated by the piezoelectric ultrasonic atomizer is extremely small, with an average droplet size that can be controlled within the range of 5-15μm. When evaporating on the surface of the evaporator 32, it can quickly absorb a large amount of heat, significantly improving the heat dissipation efficiency of the evaporator 32. Circulating pump 301 The system provides power to drive the coolant to circulate between the pipes, the reservoir 52, and the evaporator 53. The reservoir 52 stores the coolant and maintains a stable system liquid level. The evaporator 53 adopts an aluminum fin structure with microchannels on its surface to increase the contact area between the coolant and the air, accelerating heat dissipation. The auxiliary heat dissipation components consist of a centrifugal fan 54, a spiral duct 55, and an atomizing component 56. The centrifugal fan 54 generates a high-speed airflow, which is introduced into the spiral duct 55 through the pipes. The spiral duct 55 adopts a spiral inner wall design to guide the airflow to form a rotating motion. The atomizing component 56 is located in the middle of the spiral duct 55 and disperses the liquid into micron-sized droplets. Under the action of the centrifugal fan 54, the droplets mix with the airflow to form a two-phase flow of gas and mist, which is sprayed onto the surface of the evaporator 53 through the outlet of the spiral duct 55. The atomized material evaporates and absorbs heat on the surface of the evaporator 53. At the same time, the airflow accelerates the evaporation of the droplets and the transfer of heat, significantly enhancing the heat dissipation efficiency of the evaporator 53. Some of the two-phase flow of gas and mist continues to flow to the heat dissipation body 4 structure, further improving the overall heat dissipation effect.

[0041] Referring to Figure 12, further, the main composite fabric layer 1 consists of, from the inside out, a heat exchange layer 11, a functional layer 12, an insulation coating 13, and a protective layer 14. The media transmission network 2 is located within the functional layer 12. The heat exchange layer 11 uses a blended fabric with high thermal conductivity and breathability, such as modal blended fabric, to achieve directional heat flow conduction and construct a heat exchange interface between the media transmission network 2 and the environment. The functional layer 12 has a highly elastic foamed matrix containing antibacterial ions around the media transmission network 2 evenly distributed on the surface of the heat exchange layer 11, protecting the internal media transmission network 2 from external pressure or bending, extending its service life, and achieving uniform heat conduction, mechanical stress buffering, and basic insulation functions. The insulation coating 13 covers the upper part of the functional layer 12 and can be made of materials with good insulation performance and flexibility, such as polyurethane, to reduce heat conduction by increasing thermal resistance and simultaneously inhibiting... The thermal bridge effect improves the overall thermal insulation performance. The protective layer 14 uses a highly wear-resistant and tear-resistant fabric, which together with the heat exchange layer 11 forms the sewing stitch bearing interface, improving the service life of the fabric. The main composite fabric layer 1 can be adapted to various end product forms. Based on standardized modular design, through parametric cutting adjustment and seam process adaptation, the flexible substrate can be transformed into the following product forms, such as clothing products, temperature-controlled vests, clothing accessories, special occupational bodysuits, etc.; bedding products, sleeping mats, comforters, constant temperature sleeping bags, etc.; container products, various soft bags, constant temperature transport bags, etc.; wrapping tape, constant temperature cover, constant temperature function layer, etc. In addition, the medium transmission pipeline 2 is evenly distributed in the fabric according to the shape design and sewing needs of the main composite fabric layer 1. The medium transmission pipeline 2 is bonded and connected in the fabric seam edge according to the pipeline design requirements using special adhesives and sleeves to re-form a closed circuit.

[0042] Referring to Figures 9-11, the pressure-controlled flow stabilizing valve 6 on the two sets of circulation pipelines 33 adopts a passive self-regulating flow stabilizing control structure. It has symmetrically arranged variable-diameter elastic pipelines inside, controlling the flow rate of the infusion and return hoses through hose expansion force, achieving a dual-channel mode of media isolation or mixed flow. When the media transmission network 2 is squeezed and the flow is interrupted, a local circulation path is formed. The pressure-controlled flow stabilizing valve 6 includes a valve body 61 and an intermediate transmission component 62 disposed on the valve body 61. The valve body 61 has an adjustment cavity 63 inside, which is semi-closed and has an arc-shaped inner wall. Two elastic pipelines with variable diameter characteristics are arranged inside: an infusion hose 64 and an auxiliary return hose 65. Both pipelines adopt… Made of elastic rubber or silicone material, it adapts to expansion or contraction deformation caused by pressure changes through its own elasticity and flexibility. The arc-shaped inner wall of the regulating cavity 63 forms a specific contact interface with the elastic pipeline to ensure contact stability during deformation. The valve body 61 is also equipped with a bidirectional fluid port, which is connected to the infusion hose 64 and the auxiliary return hose 65 respectively, for fluid distribution and pressure transmission. When the main composite fabric layer 1 wrinkles or other defects cause the medium transmission pipeline 2 to bend, the pressure in the system rises abnormally, allowing some liquid to flow out from the auxiliary return hose 65 to relieve pressure. The infusion hose 64 serves as the main delivery channel, with its input end connected to the external delivery pipeline, responsible for the forward transmission of fluid; the auxiliary return hose... Section 65 serves as an auxiliary channel for dynamically adjusting flow rate and providing pressure relief protection. The intermediate transmission component 62, located between the two elastic tubing sections, converts the radial force generated by pressure changes in the infusion tubing 64 or the auxiliary return tubing 65 into a squeezing driving force, which acts in the opposite direction on the other tubing, thereby adjusting the flow cross-sectional area of ​​both. When the fluid pressure inside the infusion tubing 64 increases, its wall expands outward due to the pressure, and the resulting radial expansion force is transmitted to the auxiliary return tubing 65 through the intermediate transmission component 62, squeezing the latter and causing a decrease in the flow cross-sectional area and flow rate of the auxiliary return tubing 65. Conversely, when the pressure inside the infusion tubing 64 decreases, the tubing wall contracts, and the intermediate transmission component 62 exerts a squeezing force on the auxiliary return tubing 65. The pressure on the auxiliary return hose 65 is reduced, and the cross-sectional area of ​​the auxiliary return hose 65 increases and the flow rate increases due to the elastic recovery. Through this reverse adjustment mechanism, the flow rates of the two pipelines are dynamically balanced with pressure changes. Under normal operating conditions, the flow rate of the bidirectional fluid port is the same as the flow rate of the infusion hose 64. If the external pipeline is in a closed or semi-closed state, the flow rate of the infusion hose 64 will become the sum of the flow rate of the bidirectional fluid port and the flow rate of the auxiliary return hose 65. At this time, the auxiliary return hose 65 achieves pressure relief and flow diversion by increasing its own cross-sectional area. Through the deformation of the elastic pipeline and the mechanical linkage of the intermediate transmission component 62, adaptive flow regulation without external control is achieved, which also has the characteristics of simple structure and high reliability.

[0043] Referring to Figures 1 and 13, a connecting hose 7 is further provided on the circulation pipeline 33. The connecting hose 7 is detachably connected to the medium transmission pipeline 2 via a quick-connect structure, and a hose pressure valve 71 is provided on the connecting hose 7. The two ends of the medium transmission pipeline 2 are connected to two main pipes formed by a series of three-way flexible joints. The inlet and outlet of the two main pipes converge in front of the extension hose coil, as shown in Figures 13 and 14. The hose pressure valve 71 consists of a spinning drive mechanism and a movable clamping assembly forming the core sealing unit. The drive component 701 with a threaded guide structure drives the movable pressure block 702 to move axially. During the locking phase, when the spinning head rotates along the threaded lead, it pushes the movable pressure block 702 to move axially through the conical surface transmission, thereby controlling the axial displacement of the movable pressure block 702. A radial compression force is applied to the connecting hose 7, causing plastic deformation of the hose wall to achieve a mechanical seal. During the conduction phase, when the rotating head is rotated in the opposite direction to the initial position, the movable pressure block 702 releases the constraint, and the hose elastically recovers under the pressure of the medium, reconstructing the fluid channel. The connecting hose 7 can be spirally wound into the coil groove. The coil is integrated into the functional compartment in the side hand pocket of the wearable device (vest / bodysuit). The functional compartment adopts an openable and closable structure design, and the compartment cover can be quickly opened and closed with Velcro. The compartment has a preset pipeline groove and fixing buckle to ensure that the preset curvature radius is maintained when the pipeline is wound up and down. When disassembled, the pressure generated by the movable pressure block 702 on the connecting hose 7 can seal it to prevent medium leakage.

[0044] Furthermore, a liquid level sensor 303 is also installed on the circulation pipeline 33. When the liquid level sensor 303 detects a flow interruption, a three-level protection strategy is implemented: immediately cut off the power supply to the associated actuator; activate the audible or tactile alarm device; and send a fault code to the monitoring terminal.

[0045] The system also includes a power management module and an intelligent control module. The intelligent control module features an MCU core processor with an adaptive fuzzy PID algorithm, TEC / PTC collaborative temperature control, PWM drive, multi-sensor signal acquisition, offline voice module audio acquisition, and multi-channel feedback. The power management module, as the core guarantee for stable system operation, provides adaptive power to the intelligent control module, actuator system, etc., and works in conjunction with the cooling system to achieve dynamic power consumption management. The power management module receives a wide input voltage range of DC 6V~60V, and outputs three system operating power supplies: 12V, 5V, and 3.3V through multi-stage voltage conversion circuits. The 3.3V rail powers low-power chips such as the MCU core and Wi-Fi communication module; the 5V rail powers devices such as the OLED display unit and audio module; and the 12V rail drives high-power loads such as the thermoelectric cooler 32 and the circulating pump 301. The power management module integrates a triple protection mechanism for overcurrent, overvoltage, and overheating. When the circuit current exceeds the rated threshold, the overcurrent protection circuit immediately cuts off the power output; the overvoltage protection circuit monitors the voltage in real time, and triggers voltage reduction or power cut-off if it exceeds the safe range. Meanwhile, the power supply current of high-power loads such as the thermoelectric cooler 32 and the PTC ceramic heating component 31 is dynamically adjusted by the MOSFET switching array. Combined with the temperature data fed back by the heat dissipation system, power supply is provided on demand to avoid energy waste. The power management module and the intelligent control module exchange data through the SPI communication protocol and dynamically adjust the power output according to the real-time temperature control requirements of the system. For example, when the system enters the cooling mode, the intelligent control module sends a command, and the power management module prioritizes the power supply to the TEC cooling module and the heat dissipation blower 5. When the temperature of the heat dissipation substrate 42 is detected to be too high, the heat dissipation system is activated to start the enhanced heat dissipation mode, while automatically reducing the power consumption of non-critical components to achieve dynamic power consumption management.

[0046] It also features multiple control modes, such as offline voice control, manual interface control with two-way communication for temperature monitoring and parameter setting based on an OLED display module with integrated touch functionality, and mobile APP management. The collaborative architecture between the offline voice recognition module and the microcontroller (MCU) enables human-machine interaction functions, and its core process is as follows:

[0047] The offline voice module picks up sound wave signals from the environment through a built-in microphone array and converts them into digital signals via an analog-to-digital converter (ADC) to output instruction codes.

[0048] After receiving the instruction encoding, the MCU executes a dual-path response according to the preset logic: outputting control signals and driving external actuators through the serial communication interface (UART);

[0049] Audio feedback generation: The preset audio file stored in Flash is called and transmitted to the speaker via a digital-to-analog converter (DAC) to realize the voice broadcast function.

[0050] Multimodal feedback switching mechanism: The system integrates a physical function button group, and users can select a single feedback mode by triggering the button. The logical relationship is as follows:

[0051] Mutually exclusive switching: Voice feedback, vibration feedback (implemented through a linear resonant actuator LRA), and screen display feedback (based on an LCD driver circuit) are mutually exclusive in their activation, and the mode switching is controlled by the internal state machine of the MCU;

[0052] Priority configuration: In the default mode, voice feedback has the highest priority. Other modes can be adjusted through firmware layer parameter configuration.

[0053] The mobile app management system integrates a Wi-Fi communication module with a mobile terminal application (APP) to build a remote management and status monitoring system. The specific implementation architecture is as follows:

[0054] On the device side: Deploy an embedded Wi-Fi communication module to enable network access capabilities and connect to the device's internal control bus;

[0055] Mobile terminal: Develop a dedicated APP to provide a user interface and support remote command issuance and status data visualization;

[0056] Cloud relay: Configure the server to relay communication data, enabling command routing and historical data storage in high-concurrency scenarios;

[0057] The device collects operating parameters (including temperature, cycle status, working mode, etc.) in real time through its built-in sensor array, and generates structured data packets after analog-to-digital conversion.

[0058] A lightweight communication protocol (for low-power data transmission) is used to transmit data packets to the APP or cloud via a Wi-Fi link, with TLS encryption enabled during the transmission process.

[0059] Status monitoring: After receiving data, the APP parses and dynamically updates the device status panel, supporting threshold alarms and historical trend analysis;

[0060] Command control: Users send operation commands through the APP interface, which are received by the Wi-Fi module after identity verification and the device functions such as starting and stopping, and adjusting parameters are executed;

[0061] Firmware maintenance: An OTA (Over-The-Air) upgrade interface is provided, allowing remote updates of device firmware via Wi-Fi link.

[0062] The following will explain the specific usage methods:

[0063] 1. When using the device, the user should wear a vest, take out the connecting hose 7 from the extension hose reel, connect it to the host interface on the backpack, set the target temperature to 25℃ via voice, and then use the function button group to turn off the voice response and enter the do-not-disturb mode.

[0064] 2. The system monitors that the temperature of the flow guide zone 34 is 15℃, which is lower than the target temperature. The heating mode is automatically turned on, and the PTC ceramic heating component 31 and the heating circuit circulation pump 301 are started and run at full load. After the temperature of the flow guide zone 34 rises to 24.5℃, the output power of the PTC ceramic heating component 31 and the circulation pump 301 is reduced to enter a low-speed operation state to maintain temperature stability.

[0065] 3. When the temperature rises at noon, the system detects that the temperature of the guide zone 34 exceeds the target temperature. The system automatically exits the heating mode and starts the cooling mode. Specifically, the PTC ceramic heating component 31 and the heating circuit circulation pump 301 are stopped, and the thermoelectric cooler 32 and the cooling circuit circulation pump 301 are started and run at high load.

[0066] 4. After the temperature in the guide zone 34 drops to 25.5℃, reduce the output power of the thermoelectric cooler 32 and the circulating pump 301 to operate at a low speed and maintain temperature stability. When the hot end temperature of the thermoelectric cooler 32 exceeds 50℃, start the cooling blower 5 of the thermoelectric cooler 32. The hot end continues to heat up, reaching 60℃, at which point the system prompts for the connection of an external auxiliary heat dissipation system. When the temperature drops below 60℃, the auxiliary heat dissipation system shuts down, and the cooling blower 5 of the thermoelectric cooler 32 shuts down when the temperature is below 50℃.

[0067] 5. Rest at the temporary campsite in the evening, connect the main unit to the sleeping mat, and set the target temperature to 30 degrees Celsius.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An integrated multifunctional liquid medium near-field temperature control system, characterized in that, Includes: a main composite fabric layer (1), which is used to construct a multi-layer functional hierarchical composite structure and can be adapted to various terminal product forms to meet the needs of different temperature control scenarios; a medium transmission pipeline (2), which is located inside the main composite fabric layer (1) and is used for the transportation and circulation of hot and cold media; a heat manager (3), which is equipped with a PTC ceramic heating component (31) for heating the liquid medium and a thermoelectric cooler (32) for cooling the liquid medium. The heat manager (3) is connected to both ends of the medium transmission pipeline (2) through two sets of circulation pipelines (33) for heating or cooling the liquid medium. Both sets of circulation pipelines (33) are equipped with circulation pumps (301) for bidirectional alternating circulation of the liquid medium through a symmetrical flow channel design. The heat manager (3) is equipped with a first temperature sensor (302) for detecting the temperature of the heat-conducting medium in the flow guide area (34); and a heat dissipation main The heat dissipation body (4) is connected to the hot end of the thermoelectric cooler (32) and is used to dissipate heat from the hot end of the thermoelectric cooler (32). The heat dissipation body (4) is provided with a second temperature sensor (41) for detecting the temperature of the heat dissipation body (4). The heat dissipation mechanism includes a standard heat dissipation unit and an enhanced heat dissipation unit, which are used to start heat dissipation when the heat dissipation body (4) is in different temperature ranges. The central processing unit controls the heat manager (3) and the heat dissipation mechanism to perform temperature control according to the temperature signals detected by the first temperature sensor (302) and the second temperature sensor (41). The heat dissipation body (4) also includes a pressure-controlled flow stabilizing valve (6) provided on two sets of circulation pipelines (33). The pressure-controlled flow stabilizing valve (6) adopts a passive self-adjusting flow stabilizing control structure. The variable diameter elastic pipeline is symmetrically arranged inside. The flow rate of the infusion and return hoses is controlled by the expansion force of the hose to realize the medium isolation or mixed flow dual-channel mode. When the medium transmission pipeline (2) is squeezed and the flow is interrupted, a local circulation path is formed.The pressure-controlled flow regulator (6) includes a valve body (61) and an intermediate transmission component (62) on the valve body (61). The valve body (61) has an adjustment chamber (63) inside. The adjustment chamber (63) is semi-closed and has an arc-shaped inner wall. Two flexible pipelines with variable diameter characteristics are arranged inside, namely the infusion hose (64) and the auxiliary return hose (65). Both pipelines are made of elastic rubber or silicone material. They adapt to the expansion or contraction deformation caused by pressure changes through their own elasticity and flexibility. The arc-shaped inner wall of the adjustment chamber (63) forms a contact interface with the elastic pipeline. The valve body (61) is also provided with a bidirectional fluid port, which is connected to the connection point of the infusion hose (64) and the auxiliary return hose (65) respectively. When the main composite fabric layer (1) wrinkles, causing the medium transmission pipeline (2) to bend, the pressure in the system rises abnormally. Some liquid flows out from the auxiliary return hose (65) to relieve pressure. The infusion hose (64) serves as the main delivery channel, and its input end is connected to The external delivery pipeline is connected and is responsible for the forward transmission of fluid. The auxiliary return hose (65) serves as an auxiliary channel for dynamically adjusting the flow rate and achieving pressure relief protection. The intermediate transmission component (62) is located between the two elastic pipelines. Its function is to convert the radial force generated by the pressure change of the infusion hose (64) or the auxiliary return hose (65) into a squeezing driving force, which acts in the opposite direction on the other pipeline, thereby adjusting the flow cross-sectional area of ​​both. When the fluid pressure in the infusion hose (64) increases, its pipe wall expands outward due to the pressure. The resulting radial expansion force is transmitted to the auxiliary return hose (65) through the intermediate transmission component (62), forming a squeezing force on the latter, which leads to a decrease in the flow cross-sectional area and a decrease in the flow rate of the auxiliary return hose (65). Conversely, when the pressure in the infusion hose (64) decreases, the pipe wall contracts, the squeezing force of the intermediate transmission component (62) on the auxiliary return hose (65) weakens, and the cross-sectional area of ​​the auxiliary return hose (65) increases and the flow rate increases due to the elastic recovery.

2. The integrated multifunctional liquid medium near-field temperature control system according to claim 1, characterized in that, The heat dissipation body (4) includes a heat dissipation substrate (42) and heat dissipation fins (43) arranged in an array on the heat dissipation substrate (42). The heat dissipation substrate (42) forms a shaped contact surface with the hot end of the thermoelectric cooler (32). The heat dissipation substrate (42) is provided with a capillary network (44) inside, and the two ends of the capillary network (44) are respectively connected to an external liquid circulation system through a quick-connect structure.

3. The integrated multifunctional liquid medium near-field temperature control system according to claim 1, characterized in that, The standard heat dissipation unit includes a blower (5) located on one side of the heat dissipation body (4) for air convection heat dissipation through the blower (5).

4. The integrated multifunctional liquid medium near-field temperature control system according to claim 1, characterized in that, The enhanced heat dissipation unit includes a circulating pump body (51), a liquid reservoir (52) and an evaporator (53) connected in sequence by pipes, as well as a centrifugal fan (54), a spiral duct (55) for generating airflow and an atomizing component (56) for generating atomization effect.

5. The integrated multifunctional liquid medium near-field temperature control system according to claim 1, characterized in that, The main composite fabric layer (1) consists of a heat exchange layer (11), a functional layer (12), a thermal insulation coating (13), and a protective layer (14) from the inside out. The medium transmission pipeline (2) is located inside the functional layer (12).

6. The integrated multifunctional liquid medium near-field temperature control system according to claim 1, characterized in that, The circulation pipeline (33) is also provided with a connecting hose (7), which is detachably connected to the medium transmission pipeline (2) through a quick-connect structure.

7. The integrated multifunctional liquid medium near-field temperature control system according to claim 6, characterized in that, The connecting hose (7) is provided with a hose pressure valve (71), and the hose pressure valve (71) is composed of a spinning drive mechanism and a movable clamping assembly to form a core sealing unit.

8. The integrated multifunctional liquid medium near-field temperature control system according to claim 1, characterized in that, The circulation pipeline (33) is also equipped with a liquid level sensor (303).

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