Temperature control system assisted by phase change cold storage

Abstract

The utility model relates to temperature control system technical field, concretely relates to a phase change cold accumulation assisted temperature control system, and this system includes control circuit board, refrigeration plant, energy storage component, auxiliary air supply system and sensor system, and refrigeration plant includes air conditioner, and auxiliary air supply system includes air valve, and sensor system includes outdoor temperature sensor, control circuit board is used to control refrigeration plant to carry out cooling to indoor, energy storage component includes phase change cold accumulation board, and phase change cold accumulation board in jar has phase change material including salt hydrate, and phase change cold accumulation board sets up in preset air duct path, outdoor temperature sensor is used for detecting outdoor temperature value, air valve is used for when outdoor temperature is lower than preset value, and the air duct path is conducted with outdoor, to make phase change cold accumulation board carry out cold accumulation, to assist refrigeration plant to carry out cooling to indoor, like this, can effectively utilize environmental temperature and store cold quantity, are used for assisting air conditioning system control room temperature to reduce air conditioning system energy consumption, avoid the waste of energy.

Description

Technical Field

[0001] This utility model relates to the field of temperature control system technology, specifically to a phase change cold storage auxiliary temperature control system. Background Technology

[0002] Currently, temperature control in critical facilities such as communication equipment rooms and data centers generally relies on traditional air conditioning systems. Although these systems can change their operating modes under different ambient temperatures, they usually only change the frequency of the air conditioning compressor and lack the ability to adapt to environmental changes. For example, when the outside temperature is low, such as at night or in winter, they cannot effectively use the outdoor ambient temperature to cool the room, resulting in energy waste. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a phase change cold storage-assisted temperature control system to overcome the problem that current temperature control systems cannot effectively utilize the environment to achieve temperature control.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: This application provides a phase change cold storage-assisted temperature control system, including: a control circuit board, a refrigeration device, an energy storage component, an auxiliary air supply system, and a sensor system. The refrigeration device includes an air conditioner, the auxiliary air supply system includes an air valve, and the sensor system includes an outdoor temperature sensor. The refrigeration device, the auxiliary air supply system, and the sensor system are all connected to the control circuit board. The control circuit board is used to control the refrigeration equipment to cool the room. The energy storage component includes a phase change cold storage plate, which is filled with a phase change material including salt hydrates, and the phase change cold storage plate is disposed in a preset air duct path. The outdoor temperature sensor is used to detect the outdoor temperature value; The air valve is used to connect the air duct path to the outside when the outdoor temperature is lower than a preset value, so that the phase change cold storage plate can store cold to assist the refrigeration equipment in cooling the indoor environment.

[0005] Furthermore, in some embodiments of this application, the auxiliary air supply system further includes: a flow guide fan and a louvered air direction regulating fan; The air valve is located between the phase change cold storage plate and the outdoor air inlet; The airflow guiding fan is located at the end of the phase change cold storage plate away from the air valve, and the louvered airflow direction regulating fan is located at the end of the airflow guiding fan away from the phase change cold storage plate; the airflow guiding fan is used to regulate the air volume that enters the room after being cooled by the phase change cold storage plate; the louvered airflow direction regulating fan is used to regulate the airflow direction that enters the room after being cooled by the phase change cold storage plate. The phase change cold storage plate is set perpendicular to the wind direction in the air duct path.

[0006] Furthermore, in some embodiments of this application, the sensor system further includes: an indoor temperature sensor, a phase change plate temperature sensor, a compressor speed pulse sensor, and a flow guide fan speed pulse sensor; The compressor speed pulse sensor is fixed to the compressor housing of the air conditioning system; the guide fan speed pulse sensor is fixed to the guide fan housing; and the phase change plate temperature sensor is disposed on the surface of the phase change cold storage plate. The indoor temperature sensor and the phase change plate temperature sensor are connected to the control circuit board via an RS485 bus or a 0-10V analog signal line; the compressor speed pulse sensor and the guide fan speed pulse sensor are connected to the control circuit board via a photoelectric switch output or a Hall sensor signal line.

[0007] Furthermore, in some embodiments of this application, a feedback actuator is also included, which includes a damper actuator, a flow guide fan speed controller, an air conditioning infrared control module, and a louver controller; The damper actuator drives the damper via a DC motor controller or a stepper motor; the airflow fan speed controller drives the airflow fan via a MOSFET; the air conditioner infrared control module controls the air conditioner via an infrared transmitter and an infrared encoding chip, the infrared encoding chip being located within the control circuit board; the louver controller is connected to the louver airflow adjustment fan.

[0008] Furthermore, in some embodiments of this application, a power module is also included; The power module includes an input terminal including a main power input port with a voltage of 48V, and an output terminal including a first output terminal, a second output terminal, a third output terminal, and a fourth output terminal. The voltage at the first output terminal is 48V, which powers the airflow fan and the damper actuator; the voltage at the second output terminal is 24V, which powers the phase change plate temperature sensor and the louver controller; the voltage at the third output terminal is 12V, and the voltage at the fourth output terminal is 5V. The third and fourth output terminals are used to power the control circuit board, the outdoor temperature sensor, the indoor temperature sensor, the compressor speed pulse sensor, the airflow fan speed pulse sensor, or the display control panel.

[0009] Furthermore, in some embodiments of this application, the power distribution module further includes a backup power port, and the power module is provided with a power switching switch; The power switching device includes an automatic switch composed of a P-channel MOSFET and a Schottky diode. The first end of the automatic switch is connected to the main power input port and the backup power interface, respectively, and the second end is connected to the control circuit board.

[0010] Furthermore, in some embodiments of this application, the copper foil width of the high current channel on the PCB of the control circuit board is 4-6 mm; the copper layer thickness of the PCB of the control circuit board is 2 oz-3 oz; at least some pads of the control circuit board are provided with multiple vias and copper foil bridges; wherein, the high current channel includes a channel powered by the first output terminal of the power module.

[0011] Furthermore, in some embodiments of this application, the control circuit board is provided with an aluminum heat sink or contact copper pillars, the aluminum heat sink or contact copper pillars are respectively disposed in the MOS transistor area, and a metal heat dissipation window is provided on the back of the MOS transistor mounting position of the control circuit board.

[0012] This utility model relates to the field of temperature control system technology, specifically to a phase change cold storage-assisted temperature control system. The system includes a control circuit board, a refrigeration device, an energy storage component, an auxiliary air supply system, and a sensor system. The refrigeration device includes an air conditioner, the auxiliary air supply system includes an air valve, and the sensor system includes an outdoor temperature sensor. The refrigeration device, auxiliary air supply system, and sensor system are all connected to the control circuit board. The control circuit board controls the refrigeration device to cool the indoor environment. The energy storage component includes a phase change cold storage plate, which contains a phase change material including salt hydrates, and is positioned along a preset air duct path. The outdoor temperature sensor detects the outdoor temperature. The air valve connects the air duct path to the outside when the outdoor temperature is lower than the preset value, allowing the phase change cold storage plate to store cold energy to assist the refrigeration device in cooling the indoor environment. In this way, ambient temperature can be effectively utilized to store cold energy to assist the air conditioning system in controlling room temperature, thereby reducing the energy consumption of the air conditioning system and avoiding energy waste. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the temperature control system for phase change cold storage assistance provided in this embodiment of the utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Figure 1 This is a schematic diagram of the temperature control system for phase change cold storage assistance provided in this embodiment of the present invention. Please refer to [link / reference]. Figure 1 The phase change cold storage auxiliary temperature control system provided in this embodiment may include: a control circuit board 1, a refrigeration device, an energy storage component, an auxiliary air supply system, and a sensor system.

[0017] Among them, refrigeration equipment includes air conditioners (in Figure 1 The diagram shows the air conditioner main body 2 and air conditioner compressor 3), the auxiliary air supply system including the air valve 4, and the sensor system including the outdoor temperature sensor T1. The refrigeration equipment, auxiliary air supply system, and sensor system are all connected to the control circuit board 1. The control circuit board 1 is used to control the refrigeration equipment to cool the indoor environment. The energy storage component includes a phase change cold storage plate 5, which is filled with phase change material including salt hydrates, and the phase change cold storage plate 5 is set in a preset air duct path. The outdoor temperature sensor T1 is used to detect the outdoor temperature value. The air valve is used to connect the air duct path to the outside when the outdoor temperature is lower than the preset value, so that the phase change cold storage plate 5 can store cold to assist the refrigeration equipment in cooling the indoor environment.

[0018] Furthermore, in some embodiments of this application, the auxiliary air supply system further includes: a guide fan 6 (such as a 12V-48V high-volume guide fan, which in some embodiments may also have a speed feedback interface for fault diagnosis based on speed) and a louvered airflow adjustment fan 7; wherein, the air valve 4 is disposed between the phase change cold storage plate 5 and the outdoor air inlet; the guide fan 6 is disposed at the end of the phase change cold storage plate 5 away from the air valve 4, and the louvered airflow adjustment fan 7 is disposed at the end of the guide fan 6 away from the phase change cold storage plate 5; the guide fan 6 The airflow is adjusted by the phase change cold storage plate 5 and the airflow entering the room. The blade direction regulating fan 7 is used to adjust the airflow direction of the airflow entering the room after being cooled by the phase change cold storage plate 5. The phase change cold storage plate 5 is set perpendicular to the airflow direction in the air duct path. In this way, the cold energy stored by the phase change cold storage plate 5 and the auxiliary air conditioning system can be better controlled to regulate the room temperature. (In practical applications, the airflow regulating fan 6 and the blade direction regulating fan 7 can be adjusted by the set sensors such as detecting the indoor temperature, or they can be manually adjusted by relevant personnel.)

[0019] In practical applications, all of the above components can be arranged on the side of a communication equipment room near the air conditioning outlet. The circuits of the air guide fan 6 and the air valve 4 are arranged via guide rail terminals, and the sensor housing is treated with dustproof and electromagnetic shielding. The phase change cold storage plate 5 can be installed in sections on a metal tray or slide rail.

[0020] Furthermore, such as Figure 1 As shown, in some embodiments of this application, the sensor system further includes: a phase change plate temperature sensor T2, an indoor temperature sensor T3, a compressor speed pulse sensor C1, and a duct fan speed pulse sensor C2. It also includes a feedback actuator and a power module. The feedback actuator specifically includes a damper actuator, a duct fan speed controller, a louver controller, and an air conditioning infrared control module.

[0021] In this application, the control circuit board 1 can adopt a multi-layer PCB design, such as a four-layer PCB board integrating an STM32 or ESP32 series MCU, which internally integrates modules such as power distribution, signal acquisition, PWM output, infrared control, fan speed control, and sensor input; the control circuit board 1 is connected to the above-mentioned parts through a pin header interface / terminal block in the following manner: First, for the above sensor system, indoor and outdoor temperature and humidity sensors are connected to the control circuit board via RS485 bus or 0-10V analog signal line; the airflow fan speed pulse sensor C2 and the compressor speed pulse sensor C1 are connected to the dedicated sampling port of the control circuit board 1 via photoelectric switch output or Hall sensor signal line (TTL pulse signal); wherein, the power supply for all sensors is provided by the control circuit board 1, including 5V / 12V and isolated DC-DC output.

[0022] For the aforementioned actuators, fan speed is controlled by a PWM signal, which is output from the GPIO port of control circuit board 1 and works with a MOSFET to drive the fan power supply. The air valve drive module is connected to control circuit board 1 via a DC motor controller or a stepper motor module. The air conditioning system is controlled by an air conditioning infrared control module, which includes an infrared transmitter and an infrared encoding chip built into control circuit board 1 to output infrared control signals to control the compressor operation. In addition, in some embodiments of this application, control circuit board 1 is also provided with a fault output alarm port, which can be connected to an audible and visual alarm or uploaded to a host computer for alarm.

[0023] The aforementioned energy storage component, namely the phase change cold storage plate 5, is a passive device in this application and requires no control connection. In some embodiments of this application, the operating state of the phase change cold storage plate 5 can be indirectly monitored by a temperature sensor, such as the phase change plate temperature sensor T2 mentioned above (temperature changes during the absorption and release of cold energy); and as mentioned in the above embodiments, the phase change cold storage plate 5 is installed in the air duct path, forming a cold energy passage with the guide fan 6.

[0024] For the aforementioned power supply system, this application adopts a single power input architecture, with a uniform input operating voltage of 48V DC. In practical applications, external power supplies can be connected to the system through the main power input port, and then multiple stable power supplies can be provided through the power module (or, in some embodiments, through the power distribution module within the power module) to meet the power requirements of various functional modules within the system. In the embodiments of this application, to accommodate the power supply requirements of high-voltage loads such as high-performance fans and low-voltage sensitive components, the system integrates multiple sets of high-efficiency DC-DC step-down modules to convert the 48V main voltage to the required voltage levels of 24V, 12V, 5V (and also 48V), respectively, for: The first output terminal provides a direct 48V supply, used in high-power equipment such as high-airflow guide fans and electromagnetic actuators (e.g., damper actuators); the second output terminal provides a 24V output, used in phase-change cold storage plates and control components; the third output terminal provides 12V / 5V, used in control circuit boards, sensor systems, communication modules between components, and also includes a display control panel. Figure 1 Low-power electronic components such as (shown in Figure 8).

[0025] In addition, in some embodiments of this application, the power module, besides the main power input port, also has a backup power port, and the power module is equipped with a power switching switch. The power switching switch includes an automatic switch composed of a P-channel MOSFET and a Schottky diode. The first end of the automatic switch is connected to both the main power input port and the backup power interface, and the second end is connected to the control circuit board, so that the power module can support seamless switching between main power and backup power (UPS / battery). Furthermore, all the aforementioned high-current paths (i.e., high-circuit paths, such as the path powered by the first output of the power module) are equipped with MOSFET switches and widened copper foil channels to ensure high power output.

[0026] The phase-change cold storage auxiliary temperature control system provided in this application integrates a multi-channel power management unit within the control circuit board 1. It uses a DC 48V main power input and multiple output channels controlled by MOSFETs, allowing simultaneous power supply to various components, greatly reducing wiring requirements, adapting to embedded installation environments, and ensuring no interference between output circuits. Simultaneously, each output can be isolated from the logic circuit and high-power circuit via optocouplers or DC-DC isolation modules, improving anti-interference capabilities. Furthermore, it includes a power switching switch (such as an "automatic switch" composed of a P-channel MOSFET and a Schottky diode) to support switching between main power supply and backup power supply (such as UPS / battery), ensuring system stability in the event of a sudden power outage.

[0027] In order to drive multiple high-power devices (such as flow fans and air valves), this application example uses high-power MOSFETs as switching devices. The main channel switch uses IRF series or TO-247 packaged high-power MOSFETs to have low on-resistance, fast response capability, and effectively suppress temperature rise. At the same time, it is combined with PWM drive control to realize fan speed regulation and electromagnetic actuator steady-state switching. In addition, the PCB power supply copper foil is widened and locally thickened, including the copper foil width of all high current channels reaching 4-6mm. During the PCB routing stage, the copper layer is thickened (2oz-3oz), and multiple vias and copper foil bridges are used to strengthen the key pads to reduce thermal resistance and line loss. The output interface uses high-current terminal blocks and double-row soldering to ensure reliable contact.

[0028] In addition, aluminum heat sinks or contact copper pillars can be installed in the MOS area, especially in the critical MOS area, and metal heat dissipation windows can be left on the back of the MOS mounting position to facilitate the addition of a whole heatsink during assembly; convection channels and temperature control points can also be set next to the power chip, and the fan start is controlled by the motherboard temperature sensor to improve the overall thermal control capability.

[0029] Additionally, it should be noted that in this embodiment of the application, the control part of the air conditioning system, namely the air conditioning infrared control module, can use a general infrared learning transmitter, thereby supporting the control circuit board 1 to output a custom infrared encoding signal through the infrared encoding chip, ensuring compatibility with multiple brands of air conditioning equipment.

[0030] In some embodiments of the application, to achieve optimal heat exchange efficiency and response speed, the equipment arrangement can be as follows: The phase change cold storage plate 5, as mentioned in the above embodiments, is placed in the middle section of the main air duct in the airflow path, arranged perpendicular to the air supply direction to ensure sufficient airflow contact with the cold plate surface; the guide fan 6 is located downstream of the phase change cold storage plate 5 to regulate the air intake volume; the louvered airflow adjustment fan 7 is located downstream of the guide fan 5 to regulate the airflow direction; for sensors, the indoor temperature and humidity sensor T3 is installed near the high-temperature hotspot in the equipment area of ​​the computer room; the outdoor temperature sensor T1 is installed in a well-ventilated, shaded area without direct sunlight; the phase change plate temperature sensor T2 is located on the surface of the phase change cold storage plate 5 to identify the cold storage process; the speed sensors (i.e., including the compressor speed pulse sensor C1 and the guide fan speed pulse sensor C2) are correspondingly fixed to the guide fan 5 and the air conditioner compressor housing to ensure stable reading of the corresponding equipment speeds. The control circuit board 1 is centrally installed inside the electrical control box, near the power supply and fan line interface, for easy maintenance and wiring.

[0031] In addition, this application also integrates a display control panel and a control button panel (both connected to the control circuit board 1), supporting local operation and control by the user, including operation switch control and fault reset. Simultaneously, the control circuit board 1 can also incorporate a wireless communication module and antenna interface, supporting remote monitoring and control via a wireless network, thereby enhancing the system's flexibility and remote management capabilities. The display control panel can be used to display the real-time operating status of various core components within the system, including fan start / stop status, temperature change curves, power module output status, and phase change temperature control board status such as temperature (this part does not affect the view of other functions in the above embodiments and can be selected according to actual needs), facilitating the user's access to current equipment operating information.

[0032] In practical applications, the operation of the phase change plate 5 can be controlled by the phase change plate temperature sensor T2 and the existing temperature switch circuit. For example, according to different environmental and heat load changes, the system can be set to the following temperature setpoints: 28℃ (summer) / 25℃ (spring and autumn) / 20℃ (winter). At this time, corresponding to the above temperature thresholds, the natural cold source is activated (i.e., the air valve is opened to allow the phase change plate 5 to store cold to assist the air conditioning system in cooling the room) under the following conditions: outdoor temperature ≤ target value -4℃. (In some implementations, humidity can also be used as a judgment condition based on the same principle, such as humidity ≤ 70%).

[0033] It should be noted that since the temperature of the phase change material remains relatively constant during the phase change process, when the surface temperature of the phase change cold storage plate 5 is detected to be stable within a specific phase change platform range (e.g., 20°C ± 0.3°C), it can be understood that the cold storage time accumulation is in progress. If the duration of this temperature stability exceeds a set threshold (e.g., 4 hours), it can be determined that the current phase change cold storage process has been completed (this can be achieved using a timer in the prior art; of course, in some other embodiments of this application, this setting may not be necessary, as long as the phase change cold storage plate can open the air valve to store cold when the outdoor temperature is lower than the preset value, and directly assist in temperature control when the subsequent air conditioning system performs temperature control based on the current room temperature).

[0034] Understandably, when the phase change cold storage plate 5 assists in temperature control, the control circuit board 1 can also reduce the load on the air conditioner compressor through infrared signals (of course, in practical applications, some air conditioning systems can automatically adjust the frequency based on room temperature, so this part can also be selectively set according to the actual air conditioning system). In this way, while ensuring temperature control, the burden on the air conditioner can be reduced, extending the compressor's operating interval and frequency, thereby achieving energy saving and consumption reduction. Moreover, without manual intervention, it can automatically achieve cold storage and auxiliary cooling, ensuring the efficiency and stability of system operation.

[0035] In addition, based on the above embodiments, the phase change cold storage-assisted temperature control system provided in this application can also detect and alarm faults. For example, it can determine abnormal fan speed and compressor speed based on the aforementioned speed sensor (this part can be implemented using the program algorithm in the technology, and can be understood by referring to the principle of the air conditioning system in the prior art, which will not be elaborated here); and set fuses or electronic current limiters for each power output to achieve overcurrent protection; set thermistors for the control circuit board and MOS area to achieve overheat protection. Faults and abnormalities can be indicated by buzzers or lights.

[0036] In practical applications, the phase change cold storage-assisted temperature control system provided in this application can first detect the power supply and supply power through the main power supply or backup power supply during operation; based on the current indoor and outdoor temperature and humidity data, it controls the operation of the air conditioning system and uses the phase change cold storage plate for auxiliary temperature control (for example, at night or in winter when the external temperature is lower than the set value). Natural cold source is introduced by opening the air valve, thereby making full use of the external cold source by using the phase change cold storage plate 5. For example, the phase change cold storage plate 5 absorbs the cold energy in the introduced cold air, and determines its specific cold storage state based on the temperature time of the phase change cold storage plate 5 or the time of opening the air valve (of course, it can also be left to the phase change cold storage plate 5 to store cold energy on its own). After the phase change cold storage plate 5 stores cold energy, the system can close the air valve when the external temperature is higher than the indoor temperature (or after the preset cold storage time), and release the cold energy through the phase change cold storage plate 5 to assist the air conditioning equipment in cooling the room.

[0037] In addition, the phase change cold storage plate 5 can also provide auxiliary cooling when the equipment is overloaded, the compressor fails, or there is a sudden high temperature (which can be determined by the above-mentioned sensors or the air conditioning system itself). (In some embodiments, the speed of the guide fan 6 can be increased in response to the above situations, thereby increasing the cold air delivery capacity and improving the auxiliary cooling effect of the phase change cold storage plate 5).

[0038] For phase change cold storage plates and air conditioners, during high temperatures (such as during the day), the air conditioner can cool while the phase change cold storage plate assists in releasing cold energy. At the same time, the speed sensor can monitor the operation of the air conditioner compressor and the air guide fan in real time. When the outside temperature is low (such as at night), the air conditioner power is reduced and the air guide fan and air valve are turned on to introduce natural cold source. The cold storage time of the phase change cold storage plate can be determined by the temperature sensor and time to ensure sufficient cold storage. In addition, in the event of abnormal compressor speed, emergency temperature control can also be performed through the phase change cold storage plate and the corresponding air duct.

[0039] The phase change cold storage-assisted temperature control system provided in this application monitors the fan speed and air conditioner compressor frequency using pulse sensors, enabling timely fault alarms and improving system reliability and maintenance efficiency. Leveraging the lower outdoor temperatures at night, it introduces natural cold sources for ventilation and combines this with phase change materials for cold storage, effectively utilizing the low nighttime environment to release cooling energy during the day. This reduces reliance on compressor cooling and lowers air conditioning energy consumption. Furthermore, the cold storage based on temperature and time changes allows for the determination of whether the phase change material has completed cold storage, providing relevant personnel with information on the status of the phase change cold storage plate. The control circuit board provides power to multiple devices and high current output capability through a single power supply, reducing system wiring complexity and improving stability.

[0040] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0041] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0042] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0043] It should be understood that the various parts of this utility model can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0044] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0045] Furthermore, the functional units in the various embodiments of this utility model can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0046] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A temperature control system assisted by phase change cold storage, characterized in that, include: The system includes a control circuit board, a refrigeration device, an energy storage component, an auxiliary air supply system, and a sensor system. The refrigeration device includes an air conditioner, the auxiliary air supply system includes an air valve, and the sensor system includes an outdoor temperature sensor. The refrigeration device, the auxiliary air supply system, and the sensor system are all connected to the control circuit board. The control circuit board is used to control the refrigeration equipment to cool the room. The energy storage component includes a phase change cold storage plate, which is filled with a phase change material including salt hydrates, and the phase change cold storage plate is disposed in a preset air duct path. The outdoor temperature sensor is used to detect the outdoor temperature value; The air valve is used to connect the air duct path to the outside when the outdoor temperature is lower than a preset value, so that the phase change cold storage plate can store cold to assist the refrigeration equipment in cooling the indoor environment.

2. The temperature control system for phase change cold storage assistance according to claim 1, characterized in that, The auxiliary air supply system also includes: a flow guide fan and a louvered air direction regulating fan; The air valve is located between the phase change cold storage plate and the outdoor air inlet; The airflow guiding fan is located at the end of the phase change cold storage plate away from the air valve, and the louvered airflow direction regulating fan is located at the end of the airflow guiding fan away from the phase change cold storage plate; the airflow guiding fan is used to regulate the air volume that enters the room after being cooled by the phase change cold storage plate; the louvered airflow direction regulating fan is used to regulate the airflow direction that enters the room after being cooled by the phase change cold storage plate. The phase change cold storage plate is set perpendicular to the wind direction in the air duct path.

3. The temperature control system for phase change cold storage assistance according to claim 2, characterized in that, The sensor system also includes: an indoor temperature sensor, a phase change plate temperature sensor, a compressor speed pulse sensor, and a flow guide fan speed pulse sensor; The compressor speed pulse sensor is fixed to the compressor housing of the air conditioning system; the guide fan speed pulse sensor is fixed to the guide fan housing; and the phase change plate temperature sensor is disposed on the surface of the phase change cold storage plate. The indoor temperature sensor and the phase change plate temperature sensor are connected to the control circuit board via an RS485 bus or a 0-10V analog signal line; the compressor speed pulse sensor and the guide fan speed pulse sensor are connected to the control circuit board via a photoelectric switch output or a Hall sensor signal line.

4. The temperature control system for phase change cold storage assistance according to claim 3, characterized in that, It also includes a feedback actuator, which includes a damper actuator, a flow guide fan speed controller, an air conditioning infrared control module, and a louver controller; The damper actuator drives the damper via a DC motor controller or a stepper motor; the airflow fan speed controller drives the airflow fan via a MOSFET; the air conditioner infrared control module controls the air conditioner via an infrared transmitter and an infrared encoding chip, the infrared encoding chip being located within the control circuit board; the louver controller is connected to the louver airflow adjustment fan.

5. The temperature control system for phase change cold storage assistance according to claim 4, characterized in that, It also includes a power module; The power module includes an output terminal and a main power input port. The voltage of the main power input port is 48V. The output terminal of the power module includes a first output terminal, a second output terminal, a third output terminal, and a fourth output terminal. The voltage at the first output terminal is 48V, which powers the airflow fan and the damper actuator; the voltage at the second output terminal is 24V, which powers the phase change plate temperature sensor and the louver controller; the voltage at the third output terminal is 12V, and the voltage at the fourth output terminal is 5V. The third and fourth output terminals are used to power the control circuit board, the outdoor temperature sensor, the indoor temperature sensor, the compressor speed pulse sensor, the airflow fan speed pulse sensor, or the display control panel.

6. The temperature control system for phase change cold storage assistance according to claim 5, characterized in that, The power module also includes a backup power port, and the power module is equipped with a power switching switch; The power switching device includes an automatic switch composed of a P-channel MOSFET and a Schottky diode. The first end of the automatic switch is connected to the main power input port and the backup power interface, respectively, and the second end is connected to the control circuit board.

7. The temperature control system for phase change cold storage assistance according to claim 6, characterized in that, The copper foil width of the high-current channel on the PCB of the control circuit board is 4-6mm; the copper layer thickness of the PCB of the control circuit board is 2oz-3oz; at least some of the pads of the control circuit board are provided with multiple vias and copper foil bridges; wherein, the high-current channel includes a channel powered by the first output terminal of the power module.

8. The temperature control system for phase change cold storage assistance according to claim 7, characterized in that, The control circuit board is provided with aluminum heat sinks or contact copper pillars, which are respectively disposed in the MOS transistor area, and the back of the MOS transistor mounting position of the control circuit board is provided with a metal heat dissipation window.

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