Modular-assembly and refrigerator-coupled combined household storage system for refrigeration

Abstract

The invention discloses a household combined storage system assembled modularly and coupled with a refrigerator for refrigeration. The system comprises a refrigerator system, a storage cabinet system, a control system and a man-machine interaction panel. Through cooling capacity accounting and customized design, the household personalized storage requirement is met; the compressor is accurately matched, valley electricity energy storage is combined, and energy consumption is reduced; due to the unique refrigerant circulating system and the humidity control unit, accurate temperature and humidity control is achieved; the man-machine interaction panel supports interaction of hardware and software, and user management is facilitated. The storage cabinet is assembled in a modularized mode, the space and functions can be flexibly adjusted, accessories are designed in a standardized mode, and recycling and reusing of the parts are facilitated through metal materials. The problems that a traditional storage electric appliance is high in energy consumption, single in storage condition and the like are solved, the advantages of being efficient, capable of saving energy, multifunctional, customized, user-friendly, environmentally friendly, sustainable and the like are achieved, and an innovative storage solution is provided for families.

Description

Technical Field

[0001] The present invention relates to the technical field of household storage equipment, and particularly relates to a combined household storage system that combines a refrigerator with a temperature-controlled storage cabinet, achieving high energy efficiency, multi-functional storage, and customization. Background Art

[0002] With the improvement of living standards, people's demand for the multi-functionality, high energy efficiency, and intelligent management of household appliances is increasing day by day. However, there are many deficiencies in current household refrigerators and independent storage cabinets on the market:

[0003] 1. Low space utilization rate: Traditional household refrigerators usually only have freezing and refrigerating functions, and independent storage cabinets are used for storing room-temperature items. This separate design leads to low space utilization rate in the kitchen or household storage area. Users need to purchase multiple devices to meet different storage needs, which not only occupies a large amount of space but also increases the hardware cost of repeated purchases, making household storage management complicated.

[0004] 2. High energy consumption: Traditional refrigerators and storage equipment consume a large amount of electrical energy during operations such as refrigeration, humidification, and dehumidification. Due to the lack of an effective energy management system, the operating energy consumption is high, especially increasing the pressure on the power grid during peak hours. High energy consumption not only increases the electricity bills of users but also causes a greater burden on the environment. In addition, traditional refrigeration systems are difficult to effectively distribute cold energy in different temperature zones, affecting the energy utilization efficiency.

[0005] 3. Single storage conditions: Most traditional refrigerators only have basic freezing and refrigerating functions and cannot achieve functions such as multi-zone temperature and humidity control, vacuum pumping, etc. For items that require a specific temperature and humidity environment, such as red wine and seasonings, ordinary refrigerators cannot provide suitable storage conditions, and the items are prone to deterioration or damage, affecting the user experience and quality of life. Existing equipment lacks ventilation and sterilization functions, further restricting its scope of application.

[0006] 4. High cost of using cold storage technology: The existing "energy storage + refrigerator" settings are basically achieved by adding energy storage media in combination with valley electricity or the refrigerator's own cold energy without changing the refrigeration principle of the refrigerator. During the user's use process, they need to bear the maintenance costs of the refrigeration system equipment, and it is difficult to expand the capacity of the refrigerator after purchase.

[0007] Aiming at the problems of the above existing technologies, the present invention aims to solve the problems of high energy consumption and single storage conditions of traditional storage appliances and provide a simple-to-operate, multi-functional, and energy-efficient storage solution for households. Summary of the Invention

[0008] The present invention discloses a household joint storage system that is modularly assembled and coupled with refrigerator refrigeration, and aims to design an efficient and energy-saving refrigeration and temperature control system, so that users can customize the size of storage cabinets according to family needs and carry out customized deployment of temperature and humidity control units; comprehensively utilize cold energy ladders and energy storage technologies, and combine valley electricity policies to control the energy consumption of household refrigerators and temperature-controlled storage cabinets; integrate advanced temperature and humidity control functions to improve the quality of the storage environment; realize multi-functional application scenarios, and broaden the application scope of storage solutions through integrated design; promote the sustainable use of energy, provide families with environmentally friendly and economical storage options, and realize the organic combination of home appliances and furniture.

[0009] The modularly assembled and coupled refrigerator refrigeration household joint storage system comprises a refrigerator system, a locker system, a control system, and a human-machine interaction panel. The refrigerator system comprises: a condenser, a compressor, a freezing evaporator, a refrigeration evaporator, a compressor, and a radiator. The locker system comprises: a locker, a temperature control unit, a humidity control unit, and a fan. The locker comprises a temperature-controlled locker and a humidity-controlled locker. The temperature-controlled locker and the humidity-controlled locker both comprise a storage space and a workspace, and the two realize heat exchange through a temperature-controlled evaporator. The humidity-controlled locker is a workspace of the temperature-controlled locker equipped with a humidity control unit. The temperature control unit comprises a temperature-controlled system inlet three-way valve, a temperature-controlled system outlet three-way valve, a cold storage unit, a refrigerant collection unit, a temperature-controlled evaporator, a temperature control unit branch distribution valve, a control unit, and a temperature sensor. The humidity control unit comprises: a humidification system, a humidity sensor, and a control unit 2. The humidification system comprises: a pure water tank, an ultraviolet lamp, a remaining water sensor, a pump, an atomizer, and a humidity control unit branch distribution valve.

[0010] The refrigerator system is responsible for basic refrigeration, the locker system realizes diversified storage function expansion, the control system coordinates the operation of each part, and the human-machine interaction panel is convenient for users to operate. Among them, the locker adopts modular assembly, and users can choose to install temperature control unit and humidity control unit as needed to flexibly adjust the storage space function.

[0011] The technical solution of the modularly assembled and refrigerator-coupled household joint storage system is as follows:

[0012] (1) Collaboration between cooling capacity calculation and customized design

[0013] The cooling capacity calculation and customized design include the following steps:

[0014] Step 1: Conduct field research and collect storage demand information of target households through questionnaires, on-site interviews or data analysis, including item types, quantities, storage temperature requirements and initial temperature T0 (usually room temperature).

[0015] Step 2: Based on the principles of thermodynamics, use the formula Q i = cmΔT to calculate the cooling capacity required for each item to be reduced from the initial temperature T0 to the target storage temperature T i

[0016] Step 3: Add up the cooling capacity requirements of all items to obtain the total household cooling capacity requirement Q, and add a certain safety factor to ensure the stability and reliability of the system.

[0017] Step 4: According to the storage demand information of the target household collected in step (1), carry out customized design of the locker space and the adjustable range of temperature and humidity.

[0018] (2) Compressor matching:

[0019] The compressor matching includes the following steps:

[0020] Step 1: According to the total cooling capacity demand and the thermodynamic properties of the refrigerant, calculate the amount of refrigerant required to absorb the heat of Q. After selecting a suitable refrigerant, according to its enthalpy change value Δh, use the formula m r = Q / Δh to calculate the required amount of refrigerant m r ;

[0021] Step 2: Based on the total cooling capacity demand Q and the characteristics of the refrigerant, determine the theoretical refrigeration capacity Pc of the compressor. Usually, the refrigeration capacity of the compressor should be slightly greater than Q to provide a certain safety margin.

[0022] Step 3: Consult the compressor performance data sheets provided by mainstream refrigerator manufacturers in the market and select a compressor that meets the overall requirements of the refrigerator system and the locker system.

[0023] (3) Valley electricity energy storage:

[0024] The control system can also, according to the valley electricity policy of the user's location, combined with the cold storage unit, perform refrigeration and energy storage at valley electricity times to reduce the overall household electricity bill and carbon emissions.

[0025] (4) Refrigerant circulation system:

[0026] The refrigerant circulation system includes the refrigerant circulation of the refrigerator system and the refrigerant circulation of the locker system:

[0027] Refrigerant circulation of the refrigerator system: The control system sends a refrigeration signal to the compressor according to the overall system cooling capacity demand. The compressor compresses the gaseous refrigerant into a liquid state. The liquid refrigerant enters the condenser to release heat and cool down. The low-temperature liquid refrigerant first enters the freezing evaporator to evaporate and absorb heat to maintain the temperature of the freezer area of the refrigerator. A part of the refrigerant flowing out of the freezing evaporator enters the refrigerating evaporator to absorb heat to maintain the temperature of the refrigerating area of the refrigerator.

[0028] ​The refrigerant cycle of the locker system further includes: the external refrigerant cycle of the locker system and the internal refrigerant cycle of the locker system.

[0029] External refrigerant cycle of the locker system: Another part flowing out of the freezing evaporator enters the locker system. In the locker system, the control system controls the temperature control system inlet three-way valve and the temperature control system outlet three-way valve to adjust the refrigerant flow rate. When the actual refrigeration capacity is less than the refrigeration capacity required for temperature and humidity control, the external refrigerant cycle of the locker system is started. The new refrigerant flows through the temperature control system inlet three-way valve, the cold storage unit, the locker, the refrigerant collection unit, and the temperature control system outlet three-way valve, and then enters the compressor together with the refrigerant flowing out of the refrigerating evaporator to start the next refrigeration cycle.

[0030] Internal refrigerant cycle of the locker system: The internal refrigerant cycle of the locker system is completed by the temperature control unit, and the temperature sensor monitors the internal temperature of the temperature-controlled locker in real time. The specific working process is as follows:

[0031] (a) When the temperature sensor monitors that the internal temperature of the locker is lower than the set value, the following control strategy is adopted: The control unit sends a signal to open the internal circulation valves in the temperature control system inlet three-way valve and the temperature control system outlet three-way valve in the temperature control unit, reduce the opening of the external circulation valves in the temperature control system inlet three-way valve and the temperature control system outlet three-way valve, realize the internal circulation of the refrigerant in the temperature control unit, and reduce the actual refrigeration capacity; reduce the opening of the branch distribution valve in the temperature control unit, and store the excess refrigerant in front of the temperature control evaporator inlet in the cold storage unit in the temperature control unit; store the excess refrigerant after the temperature control evaporator outlet in the refrigerant collection unit in the temperature control unit; reduce the compressor power and reduce the refrigerant flow rate in the refrigeration cycle in the temperature control unit to achieve the purpose of raising the temperature.

[0032] (b) When the temperature sensor monitors that the internal temperature of the locker is higher than the set value, the following control strategy is adopted: The control unit sends a signal to close the internal circulation valves in the temperature control system inlet three-way valve and the temperature control system outlet three-way valve in the temperature control unit, increase the opening of the external circulation valves in the temperature control system inlet three-way valve and the temperature control system outlet three-way valve, and increase the flow rate of the new refrigerant entering the temperature control unit; increase the opening of the branch distribution valve in the temperature control unit, and give priority to using the valley electricity time for refrigeration to store the refrigeration capacity in the cold storage unit, the refrigerant stored in the cold storage unit when the internal temperature of the locker is lower than the set value, and the refrigerant stored in the refrigerant collection unit when the internal temperature of the locker is lower than the set value; increase the compressor power and increase the refrigerant flow rate in the refrigeration cycle in the temperature control unit to achieve temperature reduction.

[0033] (c) The control unit in the temperature control unit selects a suitable control mode according to the temperature difference feedback by the temperature sensor to improve the energy utilization efficiency.

[0034] (5) Humidity control unit

[0035] The humidity control unit is included in the working space of the humidity-controlled locker in the locker system. The internal humidity of the humidity-controlled locker is monitored in real time by a humidity sensor. The specific working process is as follows:

[0036] A pull-out pure water tank is set in the working space of the humidity-controlled locker, and the user replenishes water regularly to maintain the normal operation of the humidification system. The pure water in the pure water tank is treated by ultraviolet disinfection technology. The pure water in the pure water tank is sent to the atomizer by a pump for spraying irrigation. The atomizer uses ultrasonic atomization technology to break up the pure water into small water droplets and send them into the humidity-controlled locker to maintain the required humidity. The humidity sensor monitors the humidity change in the locker. When the humidity is lower than the set value, the control unit 2 controls the pump to increase the water extraction volume, increase the opening degree of the branch distribution valve of the humidity control unit, and improve the humidification capacity; when the humidity is higher than the set value, the control unit 2 controls the pump to reduce the water extraction volume, reduce the opening degree of the branch distribution valve of the humidity control unit, and reduce the humidification capacity. The control unit 2 calculates the humidity difference according to the feedback data of the humidity sensor, selects the control mode, and reduces energy waste. The remaining water volume sensor monitors the remaining water volume in the pure water tank. When the remaining water volume is less than the set threshold, the control unit 2 feeds back to the user through the man-machine interaction panel to remind the user to replenish pure water in time.

[0037] (6) Man-machine interaction panel

[0038] The control system transmits the control information to the user through the man-machine interaction panel, which is convenient for the user to manage. There are two modes of man-machine interaction: hardware interaction and software interaction. The hardware interaction is embedded on the door panel of the locker. The control information is displayed through the liquid crystal display screen. The user can adjust the control information through mechanical inputs such as knobs and buttons; the software interaction transmits the control information to the user's mobile device through the cloud server, and the user adjusts the control information on the input interface of the mobile device.

[0039] The working principle of the locker system:

[0040] The storage space of the locker uses air-cooling technology, and the circulation of air is realized through a fan. After the hot air is cooled by the temperature-controlled evaporator, it takes away the heat of the items in the locker. The humidity control unit is used to control the humidity of the storage space in the humidity-controlled locker. The small water droplets atomized by ultrasonic waves are sent to all corners of the storage space in the humidity-controlled locker by the wind. The working space of the locker is used to arrange the refrigerant flow pipeline and the temperature-controlled evaporator. The pipeline material of the flow pipeline is made of copper pipe. The copper pipe has good corrosion resistance, thermal conductivity, moderate price and is easy to process and install. The refrigerant flow pipeline is arranged in the inner wall partition of the modular assembled and refrigerator-refrigerated household combined storage system in a coil type or a serpentine tube type. The coil type has a large coverage area, a more uniform temperature distribution, a high heat exchange efficiency and is not easy to deform due to vibration or temperature change; the serpentine tube type has a high space utilization rate, a low processing cost and can concentrate cooling in a specific area. Temperature sensors and humidity sensors are built into the storage space of the locker to monitor the temperature and humidity changes in the storage space, and the temperature information is transmitted to the control unit, and the humidity information is transmitted to the control unit two. The size and position of the space of the locker can be designed according to the user's family space and needs. The modular assembly concept is introduced, and the working space and the storage space are designed separately and can be assembled at any time. When the user does not need temperature and humidity control, the temperature control unit and the humidity control unit in the working space can not be installed; when needed, the temperature control unit and the humidity control unit equipment can be directly installed in the working space and connected to the refrigerant circuit of the refrigerator system through a valve. If the user needs to expand a certain area to realize the refrigerator refrigeration function, it can be realized by replacing the temperature-controlled evaporator in the working space or increasing the refrigeration capacity of the storage space.

[0041] Beneficial effects

[0042] High efficiency and energy saving: Through detailed cooling capacity calculation and precise compressor matching, combined with energy storage technology and cascaded utilization of cold energy, the energy consumption of the refrigerator and the locker is optimized. Effectively store and reuse the excess cold energy, reduce energy waste, improve the refrigeration efficiency, reduce the long-term operation cost, and reduce the impact on the environment.

[0043] Versatility and customization: Integrate the refrigerator and the locker, and provide a variety of temperature and humidity control strategies. Meet the needs of different items for specific storage conditions. Users can select function modules and services according to actual needs, and design the storage space according to the family space to achieve a highly customized storage solution. Each storage space is a module. On the one hand, users can match suitable modules and their supporting components according to their own needs, and only need to reserve the storage space according to the actual size during home decoration; on the other hand, the manufacturer customizes and produces standard parts, mostly prepared by metalization, which is conducive to the recycling and reuse of furniture accessories, saves resources and avoids waste.

[0044] User - friendly and convenient operation: Design and install storage spaces and working spaces according to user needs. The integrated human - machine interaction panel and central control system support users to easily monitor and adjust the status of the refrigerator and locker through the touch screen or mobile device applications. The working space of the locker is built - in with real - time monitoring of temperature and humidity to detect environmental changes and automatically adjust, simplifying the user's daily management tasks and enhancing the convenience and satisfaction of use.

[0045] Environmental protection and sustainable development: Introduce a cold storage unit to store and reuse excess cold energy, adopt an energy - efficient design concept to reduce power consumption and carbon emissions. Consider environmental protection factors in material selection and manufacturing processes to reduce the negative impact on the environment, meet the needs of modern society for green technology, and promote sustainable development. Description of the Drawings

[0046] Figure 1 Schematic diagram of the locker of the present invention - 1

[0047] Figure 2 Schematic diagram of the locker of the present invention - 2

[0048] Figure 3 Flow chart of the working process of the present invention

[0049] Figure 4 Flow chart of the working process of the temperature control unit of the present invention

[0050] Figure 5 Flow chart of the working process of the humidity control unit of the present invention

[0051] Description of the Drawings: Human - machine interaction panel - 1, refrigerant pipeline - 2, temperature - controlled evaporator - 3, pure water tank - 4, storage cabinet door - 5, storage locker - 6, storage locker bracket - 7 Detailed Description of the Invention

[0052] A modular assembled and refrigerator-refrigeration-coupled household combined storage system provided by the present invention includes a refrigerator system, a locker system, a control system, and a human-machine interaction panel. The refrigerator system includes: a condenser, a compressor, a freezing evaporator, a refrigerating evaporator, a compressor, and a radiator. The locker system includes: lockers, a temperature control unit, a humidity control unit, and a fan. The lockers include a temperature-controlled locker and a humidity-controlled locker. Both the temperature-controlled locker and the humidity-controlled locker include a storage space and a working space, and heat exchange is achieved between the two through a temperature-controlled evaporator. The humidity-controlled locker is formed by installing a humidity control unit in the working space of the temperature-controlled locker. The temperature control unit includes a temperature control system inlet three-way valve, a temperature control system outlet three-way valve, a cold storage unit, a refrigerant collection unit, a temperature-controlled evaporator, a temperature control unit branch distribution valve, a control unit, and a temperature sensor. The humidity control unit includes: a humidification system, a humidity sensor, and a control unit two. The humidification system includes: a pure water tank, an ultraviolet lamp, a remaining water volume sensor, a pump, an atomizer, and a humidity control unit branch distribution valve.

[0053] The technical solution of the above-mentioned modular assembled and refrigerator-refrigeration-coupled household combined storage system is as follows:

[0054] (1) Coordination of cooling capacity calculation and customized design

[0055] Requirement research: For the target family, various methods are used to collect storage requirements. For example, design a detailed questionnaire covering the types of items stored daily in the family, such as fresh fruits and vegetables, meats, beverages, medicines, cosmetics, etc.; ask about the expected storage quantities of various items; clarify the required storage temperature requirements for different items, such as meats generally need to be frozen at -18°C, and fruits and vegetables are suitable for refrigeration at 0 - 8°C, etc.; record the initial temperature of the items, usually based on room temperature (assumed to be 25°C). At the same time, conduct on-site interviews to deeply understand the special storage requirements of the family, such as whether there are items with strict temperature and humidity requirements for storing red wine, cigars, etc.

[0056] Cooling capacity calculation: According to the principles of thermodynamics, use the formula Q i = cmΔT (where Q i is the cooling capacity required for a specific item, c is the specific heat capacity of the item, m is the mass of the item, ΔT = T0 - T i , T0 is the initial temperature, and T i is the target storage temperature) to calculate the cooling capacity. Assume that the family stores 5 kg of apples, the specific heat capacity of apples is about 3.85 kJ / (kg·°C), and it is cooled from room temperature 25 ° °C to the refrigeration temperature 4 ° °C, then the required cooling capacity Q 苹果= 3.85 × 5 × (25 - 4) = 404.25 kJ. And so on, calculate the cooling demand of all items and sum them up to obtain the total household cooling demand Q. To ensure the stability and reliability of the system, a safety factor of 10% - 20% is added. Assuming the total cooling demand is Q = 1000 kJ, after adding a 15% safety factor, the actual designed cooling capacity is 1000 × (1 + 0.15) = 1150 kJ.

[0057] Customized design: According to the collected storage requirement information, design the space layout and the adjustable range of temperature and humidity of the storage cabinet. If the family has a large demand for the refrigerated space, the temperature-controlled storage cabinet can be expanded into a refrigerated area; if there are humidity-sensitive items, such as traditional Chinese medicinal materials, a humidity-controlled storage cabinet can be specially set up, and the humidity adjustment range can be set at 40% - 60% RH. At the same time, considering the size of the family space, a modular design is adopted, so that the storage cabinet can be flexibly assembled modularly to adapt to different house types and placement positions.

[0058] (2) Compressor matching implementation

[0059] Calculation of refrigerant dosage: After selecting the refrigerant (such as R600a, and its enthalpy change value Δh is assumed to be 200 kJ / kg under specific working conditions), according to the total cooling demand Q = 1150 kJ, calculate the required refrigerant dosage m r through the formula m r = Q / Δh, that is, m r = 1150 ÷ 200 = 5.75 kg.

[0060] Determine the theoretical refrigeration capacity of the compressor: Considering the losses and safety margins in actual operation, the theoretical refrigeration capacity P c of the compressor should be slightly greater than the total cooling demand Q. P c can be set to 1.1 - 1.3 times of Q. In this embodiment, 1.2 times is taken, then P c = 1150 × 1.2 = 1380 kJ.

[0061] Select the compressor: Consult the compressor performance data sheets provided by mainstream refrigerator manufacturers in the market (such as Haier, Midea, Siemens, etc.), and screen out the compressors with a refrigeration capacity close to 1380 kJ and compatible with the refrigerant of this embodiment. For example, a certain brand of compressor has a refrigeration capacity of 1400 kJ under specific working conditions, which meets the requirements, and this compressor is selected as the refrigeration power source of this embodiment.

[0062] (3) Valley electricity energy storage implementation

[0063] Policy Acquisition and System Settings: The control system obtains local valley electricity policy information through network connection or manual input by the user through the human-machine interaction panel to clarify the peak electricity period and valley electricity period. For example, the local valley electricity period is from 23:00 to 7:00, and the peak electricity period is from 7:00 to 23:00. Set the energy storage strategy in the control system. When entering the valley electricity period, the control system sends a signal to the compressor to start the refrigeration and energy storage process.

[0064] Energy Storage Process: During the valley electricity period, the compressor runs at full capacity to compress the gaseous refrigerant into a liquid state. The liquid refrigerant sequentially passes through the condenser, freezer evaporator, and refrigerated evaporator for refrigeration cycle. The excess refrigerant after meeting the refrigeration demand of the refrigerator enters the cold storage unit of the locker system. The cold storage unit can use phase change materials (such as paraffin, etc.) to store cold energy by solidifying at low temperatures. When the actual refrigeration capacity is greater than the refrigeration capacity required for temperature and humidity control, the excess refrigerant is also stored in the cold storage unit to achieve cold energy storage. During the peak electricity period, the cold energy stored in the cold storage unit is preferentially used to provide refrigeration for the locker, reducing the running time of the compressor, and reducing electricity costs and carbon emissions.

[0065] (4) Implementation of Refrigerant Circulation System

[0066] Refrigerant Circulation in Refrigerator System: When the control system determines that refrigeration is required based on the overall system cooling demand, it sends a refrigeration signal to the compressor. The compressor starts to compress the gaseous refrigerant into a high-temperature and high-pressure liquid refrigerant. The liquid refrigerant enters the condenser to release heat and cool down. The low-temperature liquid refrigerant first enters the freezer evaporator, where it evaporates and absorbs heat to maintain the temperature of the freezer area at a set low temperature (such as -18°C). A part of the refrigerant flowing out of the freezer evaporator enters the refrigerated evaporator to continue evaporating and absorbing heat to maintain the temperature of the refrigerated area (such as 4°C).

[0067] Refrigerant External Circulation in Locker System: Another part of the refrigerant flowing out of the freezer evaporator enters the locker system. The control system controls the three-way valve at the inlet of the temperature control system and the three-way valve at the outlet of the temperature control system according to the temperature and humidity control requirements. When the actual refrigeration capacity is less than the refrigeration capacity required for temperature and humidity control, the refrigerant external circulation of the locker system is turned on. The refrigerant sequentially flows through the three-way valve at the inlet of the temperature control system, the cold storage unit, the locker, the refrigerant collection unit, and the three-way valve at the outlet of the temperature control system, and then enters the compressor together with the refrigerant flowing out of the refrigerated evaporator for the next refrigeration cycle. For example, when the temperature in the temperature-controlled locker is higher than the set value and more cold energy is required, the opening of the external circulation valves of the three-way valve at the inlet of the temperature control system and the three-way valve at the outlet of the temperature control system is increased to increase the refrigerant flow rate entering the locker system.

[0068] Refrigerant internal circulation of the locker system: The temperature sensor monitors the internal temperature of the temperature-controlled locker in real time. When the temperature is lower than the set value, the control unit sends a signal to open the internal circulation valves of the temperature control system inlet three-way valve and the temperature control system outlet three-way valve in the temperature control unit, reduce the opening of the external circulation valve, so that the refrigerant circulates inside the temperature control unit, reducing the actual refrigeration capacity. At the same time, reduce the opening of the branch distribution valve in the temperature control unit, store the excess refrigerant before the inlet of the temperature control evaporator in the cold storage unit, store the excess refrigerant after the outlet in the refrigerant collection unit, and reduce the compressor power to reduce the refrigerant flow rate to achieve temperature increase. When the temperature is higher than the set value, take the opposite control strategy, close the internal circulation valve, increase the opening of the external circulation valve, increase the opening of the branch distribution valve, utilize the refrigerant stored in the cold storage unit and the refrigerant collection unit, increase the compressor power, and increase the refrigerant flow rate to achieve temperature reduction. The control unit intelligently selects the appropriate control mode according to the temperature difference feedback by the temperature sensor to improve the energy utilization efficiency.

[0069] (5) Implementation of the humidity control unit

[0070] Humidification system operation: A pull-out pure water tank is set in the working space of the humidity-controlled locker, and the user regularly replenishes pure water into the pure water tank. The pure water in the pure water tank is treated by ultraviolet disinfection technology to kill bacteria and microorganisms in the pure water. The pure water is sent to the atomizer by a pump, and the atomizer uses ultrasonic atomization technology to break up the pure water into small water droplets, and the small water droplets are sent into the storage space of the humidity-controlled locker by a fan to maintain the required humidity. For example, when the set humidity is 50% RH and the actual humidity detection is 40% RH, the control unit two controls the pump to increase the water extraction volume, increase the opening of the branch distribution valve of the humidity control unit, and improve the humidification ability; when the actual humidity is higher than the set value, the control unit two controls the pump to reduce the water extraction volume, reduce the opening of the branch distribution valve of the humidity control unit, and reduce the humidification ability.

[0071] Humidity monitoring and feedback: The humidity sensor monitors the internal humidity of the humidity-controlled locker in real time and transmits the humidity information to the control unit two. The control unit two calculates the humidity difference according to the data feedback by the humidity sensor, selects the appropriate control mode, and reduces energy waste. The remaining water volume sensor monitors the remaining water volume of the pure water tank. When the remaining water volume is less than the set threshold (such as 10% of the tank capacity), the control unit two gives feedback to the user through the human-machine interface panel to remind the user to replenish pure water in time.

[0072] (6) Implementation of the human-machine interface panel

[0073] Hardware Interaction: A hardware interaction device is embedded in the door panel of the locker. A liquid crystal display is used to show control information, such as the current temperature, humidity, and operating status of the refrigerator and the locker. Users can adjust the set values of temperature, humidity, refrigeration mode, etc. through mechanical input methods such as knobs and buttons. For example, users can set the target temperature of the temperature-controlled locker by rotating the temperature adjustment knob.

[0074] Software Interaction: The control system transmits control information to the user's mobile device (such as a mobile phone or a tablet computer) through a cloud server. Users download a dedicated application and operate on the input interface of the mobile device to achieve remote monitoring and adjustment of the status of the refrigerator and the locker. For example, when users are out, they can view the temperature and humidity conditions inside the home locker through the mobile phone application. If they find that the temperature is abnormal, they can remotely adjust the refrigeration mode.

[0075] The following further elaborates on the implementation manners of each technical solution of a modularly assembled and refrigerator-refrigeration-coupled household combined storage system according to the present invention in combination with embodiments.

[0076] Embodiment 1: Storage of daily ingredients in an ordinary family

[0077] Installation and setting of the locker system: According to the layout of the family kitchen space, modular locker components of appropriate sizes are selected for assembly. The working space and the storage space of the locker are assembled according to the design plan. A temperature control unit and a humidity control unit are installed in the working space and connected to the refrigerant circuit of the refrigerator system through valves. Through the hardware interaction part of the man-machine interaction panel, the temperature of the temperature-controlled locker is set to 4°C on the liquid crystal display for storing ingredients such as vegetables and fruits; the humidity of the humidity-controlled locker is set to 50% RH for storing dry ingredients.

[0078] Storage process: Fresh vegetables and fruits are placed in the storage space of the temperature-controlled locker. Using the air-cooling technology, the fan makes the air circulate. After the hot air is cooled by the temperature-controlled evaporator, it takes away the heat of the ingredients, maintains a low-temperature environment, and ensures the freshness of the ingredients. For dry ingredients such as agaric and mushrooms, they are placed in the humidity-controlled locker. The atomizer of the humidity control unit atomizes the water in the pure water tank, and the small water droplets are sent to all corners of the storage space by the air to maintain the set humidity and prevent the dry ingredients from getting damp and deteriorating. During this process, the temperature sensor and the humidity sensor continuously monitor the temperature and humidity changes in the storage space and transmit the information to the corresponding control units.

[0079] Temperature and humidity adjustment: When the temperature sensor detects that the temperature inside the temperature-controlled storage locker is higher than 4°C, the control unit sends a signal to close the inner circulation valves of the temperature control system inlet three-way valve and the temperature control system outlet three-way valve in the temperature control unit, increase the opening degree of the outer circulation valve, and increase the flow rate of the new refrigerant entering the temperature control unit. At the same time, increase the opening degree of the branch distribution valve of the temperature control unit, utilize the cold energy stored in the cold storage unit during off-peak electricity hours and the refrigerant previously stored in the refrigerant collection unit, increase the compressor power, and increase the refrigerant flow rate in the refrigeration cycle to achieve temperature reduction. When the humidity sensor detects that the humidity inside the humidity-controlled storage locker is lower than 50% RH, the control unit two controls the pump to increase the water extraction volume, increase the opening degree of the humidity control unit branch distribution valve, and improve the humidification capacity; conversely, when the humidity is higher than 50% RH, the control unit two controls the pump to reduce the water extraction volume and reduce the opening degree of the humidity control unit branch distribution valve to reduce the humidification capacity.

[0080] User interaction: Users can view and adjust the temperature and humidity set values of the temperature-controlled storage locker and the humidity-controlled storage locker at any time through hardware interaction methods such as knobs and buttons on the door panel of the storage locker. They can also remotely view the temperature and humidity conditions of the storage space through the software interaction application installed on the mobile phone to achieve convenient management.

[0081] Example 2: Storage of special items (red wine storage)

[0082] Customization and configuration of the storage locker system: For the red wine storage requirement, customize the storage locker. Select appropriate modular components, adjust the size of the storage space to make it more suitable for the placement of red wine bottles. Install a temperature control unit and a humidity control unit in the working space, and set the temperature of the temperature-controlled storage locker to 12°C and the humidity to 70% RH. At the same time, optimize the internal layout of the storage locker and adopt a special wine rack design to reduce the vibration of the red wine bottles.

[0083] Maintenance of the storage environment: After putting the red wine into the temperature-controlled storage locker, the storage locker system starts to work. The temperature control unit precisely controls the refrigerant circulation according to the feedback of the temperature sensor. When the temperature is higher than 12°C, by adjusting the opening degrees of the temperature control system inlet three-way valve and the temperature control system outlet three-way valve, increase the refrigeration capacity to ensure that the red wine is in a suitable temperature environment. The humidity control unit also precisely controls the humidification system according to the monitoring results of the humidity sensor. When the humidity is lower than 70% RH, the pump increases the water extraction volume and the atomizer increases the spray volume to increase the humidity; when the humidity is higher than 70% RH, reduce the water extraction volume and the spray volume to maintain a stable humidity environment.

[0084] Intelligent Monitoring and Adjustment: During the storage of red wine, temperature and humidity sensors continuously monitor the environmental parameters of the storage space and transmit the data to the control unit in real time. If there are significant fluctuations in temperature or humidity, the control system automatically adjusts the operating parameters of the corresponding equipment. For example, when the temperature is relatively high in summer, the system automatically increases the refrigeration frequency and humidification amount to maintain a stable storage environment. Users can view the temperature and humidity data of the red wine storage environment on their mobile phones at any time through the software interaction function of the human-machine interaction panel, ensuring that the quality of the red wine is not affected.

[0085] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A modularly assembled and coupled household combined storage system for refrigerator refrigeration, characterized in that, It includes a refrigerator system, a locker system, a control system, and a human-machine interaction panel; the refrigerator system includes a condenser, a compressor, a freezing evaporator, a refrigerating evaporator, and a radiator; the locker system includes lockers, a temperature control unit, a humidity control unit, and a fan; the lockers include a temperature-controlled locker and a humidity-controlled locker, both the temperature-controlled locker and the humidity-controlled locker include a storage space and a working space, and heat exchange is achieved between the two through a temperature-controlled evaporator, and the humidity-controlled locker is formed by installing a humidity control unit in the working space of the temperature-controlled locker; the temperature control unit includes a temperature control system inlet three-way valve, a temperature control system outlet three-way valve, a cold storage unit, a refrigerant collection unit, a temperature-controlled evaporator, a temperature control unit branch distribution valve, a control unit, and a temperature sensor; the humidity control unit includes a humidification system, a humidity sensor, and a control unit II, and the humidification system includes a pure water tank, an ultraviolet lamp, a remaining water volume sensor, a pump, an atomizer, and a humidity control unit branch distribution valve.

2. The family combined storage system for modular assembly and coupling of refrigerator refrigeration according to claim 1, characterized in that It also includes steps of cold quantity calculation and customized design, which are as follows: Step 1: Conduct on-site research, and collect the storage demand information of the target family through methods such as questionnaire surveys, on-site interviews, or data analysis, including the types of items, quantities, storage temperature requirements, and the initial temperature T0 (usually room temperature). Step 2: Based on the principle of thermodynamics, use the formula Q i = cmΔT to calculate the cooling capacity required for each item to be reduced from the initial temperature T0 to the target storage temperature T i ; Step 3: Add up the cold quantity requirements of all items to obtain the total cold quantity requirement Q of the family, and add a certain safety factor to ensure the stability and reliability of the system. Step 4: According to the storage demand information of the target family collected in step (1), conduct customized design of the locker space and the adjustable range of temperature and humidity.

3. A household combined storage system that is modularly assembled and coupled with refrigerator refrigeration according to claim 1, characterized in that, The matching steps of the compressor are as follows: Step 1: According to the total cooling capacity requirement and the thermodynamic properties of the refrigerant, calculate the amount of refrigerant required to absorb the heat Q. After selecting a suitable refrigerant, based on its enthalpy change value Δh, calculate the required amount of refrigerant m r using the formula m r = Q / Δh; Step 2: Based on the total cold quantity requirement Q and the characteristics of the refrigerant, determine the theoretical refrigeration capacity Pc of the compressor. Usually, the refrigeration capacity of the compressor should be slightly greater than Q to provide a certain safety margin. Step 3: Consult the compressor performance data sheets provided by mainstream refrigerator manufacturers in the market and select a compressor that meets the overall requirements of the refrigerator and the lockers.

4. A household combined storage system for modular assembly and coupling of refrigerator refrigeration according to claim 1, characterized in that, The control system performs refrigeration and energy storage at valley electricity times according to the valley electricity policy where the user is located, in combination with the cold storage unit.

5. A household combined storage system that is modularly assembled and coupled with refrigerator refrigeration, characterized in that, The refrigerant circulation system includes: Refrigerant circulation of the refrigerator system: The control system sends a refrigeration signal to the compressor according to the overall system cold quantity requirement. The compressor compresses the gaseous refrigerant into a liquid state. The liquid refrigerant enters the condenser to release heat and cool down. The low-temperature liquid refrigerant first enters the freezing evaporator to evaporate and absorb heat to maintain the temperature of the freezer area of the refrigerator. A part of the refrigerant flowing out of the freezing evaporator enters the refrigerating evaporator to absorb heat to maintain the temperature of the refrigerating area of the refrigerator. Refrigerant cycle of the locker system: It includes the external refrigerant cycle and the internal refrigerant cycle of the locker system. When the actual cooling capacity is less than the required cooling capacity for temperature and humidity control, the external refrigerant cycle of the locker system is activated. The new refrigerant flows through the inlet three-way valve of the temperature control system, the cold storage unit, the locker, the refrigerant collection unit, and the outlet three-way valve of the temperature control system, and then enters the compressor together with the refrigerant flowing out of the refrigeration evaporator. The internal refrigerant cycle of the locker system is completed by the temperature control unit. The temperature sensor monitors the internal temperature of the temperature-controlled locker in real time. When the temperature is lower than the set value, the control unit sends a signal to open the internal circulation valve in the inlet three-way valve and the outlet three-way valve of the temperature control system in the temperature control unit, reduce the opening degree of the external circulation valve, realize the internal circulation of the refrigerant in the temperature control unit, reduce the actual cooling capacity, and at the same time adjust the opening degree of the branch distribution valve, store the excess refrigerant, and reduce the compressor power. When the temperature is higher than the set value, the opposite control strategy is adopted, and the control unit in the temperature control unit selects the appropriate control mode according to the temperature difference value feedback by the temperature sensor.

6. A household combined storage system for modular assembly and coupling of refrigerator refrigeration according to claim 1, characterized in that The working process of the humidity control unit is as follows: The humidity sensor monitors the internal humidity of the humidity-controlled locker in real time. When the humidity is lower than the set value, the control unit two controls the pump to increase the water extraction volume, increase the opening degree of the branch distribution valve of the humidity control unit, and improve the humidification ability. When the humidity is higher than the set value, the control unit two controls the pump to reduce the water extraction volume, reduce the opening degree of the branch distribution valve of the humidity control unit, and reduce the humidification ability. The remaining water volume sensor monitors the remaining water volume in the pure water tank. When the remaining water volume is less than the set threshold, the control unit two gives feedback to the user through the human-machine interaction panel, reminding the user to supplement pure water in time.

7. A household combined storage system for modular assembly and coupling of refrigerator refrigeration according to claim 1, characterized in that, The human-machine interaction panel includes hardware interaction and software interaction. The hardware interaction is nested on the door panel of the locker cabinet, and the control information is displayed through the liquid crystal display screen. The user can adjust the control information through mechanical inputs such as knobs and buttons. The software interaction transmits the control information to the user's mobile device through the cloud server, and the user adjusts the control information on the input interface of the mobile device.

8. A household combined storage system that is modularly assembled and coupled to refrigerator refrigeration, characterized in that, The storage space of the locker uses the air-cooling technology, and the circulation of air is realized through the fan. After the hot air is cooled by the temperature control evaporator, it takes away the heat of the items in the locker. The working space of the locker is used to arrange the refrigerant flow pipeline and the temperature control evaporator. The refrigerant flow pipeline is made of copper pipe and is arranged in the inner wall partition layer of the system in a coil or serpentine tube form. Temperature sensors and humidity sensors are installed in the storage space of the locker to monitor the temperature and humidity changes in the storage space, and transmit the temperature information to the control unit and the humidity information to the control unit two. The size and position of the locker space can be designed according to the user's home space and needs, and it is assembled modularly. The user can install or not install the temperature control unit and the humidity control unit according to needs, and can also expand a certain interval to realize the refrigerator refrigeration function by replacing the temperature control evaporator in the working space or increasing the cooling capacity of the storage space.

9. A household combined storage system that is modularly assembled and coupled with refrigerator refrigeration according to claim 1, wherein The storage space of the locker is modularized, that is, each storage space is a module. On the one hand, users can match suitable modules and their supporting components according to their own needs, and only need to reserve storage space according to the actual size during home decoration. On the other hand, the manufacturer customizes and produces standard parts, mostly made by metalization, and the recycling of accessories saves resources and avoids waste.

Images