Energy storage refrigerator

Abstract

The application discloses a kind of energy storage refrigerators, including refrigerant circulation loop, energy storage device, temperature detection unit, circulation pipeline and controller.Therein, refrigerant circulation loop is provided with the refrigerant for circulating refrigeration, energy storage device is configured to power supply energy storage refrigerator.Energy storage device is optionally thermally coupled with refrigerant circulation loop;Temperature detection unit is configured to detect the temperature of energy storage device;Controller is electrically connected with temperature detection unit, and controller is configured to control refrigerant circulation loop and energy storage device thermally coupled based on the temperature of energy storage device exceeds first temperature threshold.The energy storage refrigerator of the application is thermally coupled with refrigerant circulation loop by controlling refrigerant circulation loop according to the problem of energy storage device, effectively solve the problem that energy storage device is poor in heat dissipation.

Description

Technical Field

[0001] This application relates to the field of household appliances, specifically to an energy storage refrigerator. Background Technology

[0002] As a core household appliance requiring continuous power, refrigerators often experience spoilage of stored items due to mains power outages or voltage instability under traditional grid power supply modes. To address this issue, energy storage batteries can be installed in the refrigerator to seamlessly switch to battery power in case of mains power failure. Since the energy storage battery is typically built into the refrigerator, both it and the refrigerator compressor generate heat during operation. Poor battery heat dissipation will severely affect its lifespan and safety. One related technology utilizes condensate generated by the condenser inside the refrigerator compressor cavity to cool the energy storage battery; however, this method carries the risk of condensate freezing and clogging the channels, and commonly used absorbent materials are prone to bacterial growth, requiring regular maintenance, resulting in low reliability in practical applications. Utility Model Content

[0003] In view of the above problems, this application provides an energy storage refrigerator, which effectively solves the problem of poor heat dissipation of the energy storage device by controlling the thermal coupling between the refrigerant circulation loop and the energy storage device.

[0004] The energy storage refrigerator provided in this application includes: A refrigerant circulation loop, wherein refrigerant is provided in the refrigerant circulation loop, and the refrigerant circulates and cools in the refrigerant circulation loop; An energy storage device is configured to power the energy storage refrigerator, and the energy storage device is optionally thermally coupled to the refrigerant circulation loop; A temperature detection unit is configured to detect the temperature of the energy storage device; A controller, electrically connected to the temperature detection unit, is configured to control the refrigerant circulation loop to thermally couple with the energy storage device based on the temperature of the energy storage device exceeding a first temperature threshold.

[0005] In some embodiments, the energy storage refrigerator further includes: A heat exchanger, located in the refrigerant circulation loop, is configured to be thermally coupled to the energy storage device.

[0006] In some embodiments, the energy storage device further includes: A flow control unit is installed in the refrigerant circulation loop, and the flow control unit is configured to adjust the rate of thermal coupling between the refrigerant circulation loop and the energy storage device according to the temperature.

[0007] In some embodiments, the flow control unit includes a thermostatic expansion valve and a temperature sensing bulb pressure-driven diaphragm of at least one type.

[0008] In some embodiments, the refrigerant circulation loop is provided with a first switch, and the controller is configured to control the first switch to turn on when the temperature of the energy storage device is greater than a first threshold temperature, so that the refrigerant circulation loop is thermally coupled to the energy storage device; the controller is also configured to control the first switch to turn off when the temperature of the energy storage device is less than a second threshold temperature, so that the refrigerant circulation loop stops thermally coupling with the energy storage device.

[0009] In some embodiments, the energy storage refrigerator further includes: The cabinet has a storage compartment and a battery compartment. The storage compartment can be equipped with a compressor and / or condenser for the refrigerant circulation loop. The energy storage device is located in the battery compartment. A heat-conducting pipe is provided between the accommodating compartment and the battery compartment, and the heat-conducting pipe is equipped with a second switch; The controller is also electrically connected to the second switch, and the controller is further configured to control the second switch to turn on when the temperature of the energy storage device is less than a third threshold temperature, so that the accommodating compartment is connected to the battery compartment.

[0010] In some embodiments, a thermal regulation component is provided inside the battery compartment.

[0011] In some embodiments, the refrigerant circulation loop includes a compressor, a condenser, an evaporator, a regulating and purifying unit, and a circulation pipeline. The compressor, condenser, regulating and purifying unit, and evaporator are connected in series, and the circulation pipeline is connected in parallel across the two ends of the evaporator; or in parallel between the evaporator and the regulating and purifying unit; or in parallel between the evaporator and the compressor.

[0012] In some embodiments, the evaporator includes a refrigerator compartment evaporator and a freezer compartment evaporator connected in series, and the circulation pipeline is connected in parallel at both ends of the refrigerator compartment evaporator or in parallel at both ends of the freezer compartment evaporator.

[0013] In some embodiments, the refrigerant circulation loop includes a compressor, a condenser, an evaporator, and a duct assembly. The compressor, condenser, and evaporator are connected in series. The duct assembly includes an air supply duct and a fan. The air inlet of the air supply duct is connected to the evaporator, and the air outlet of the air supply duct faces the energy storage device. The fan is disposed in the air supply duct and is used to supply air into the energy storage device.

[0014] In the technical solution of this application embodiment, the temperature of the energy storage device is monitored in real time by the controller, and when it exceeds the first temperature threshold, the energy storage device is actively thermally coupled to the refrigerant circulation loop, thereby utilizing the cooling capacity of the refrigerator's own refrigeration system to implement efficient and precise active heat dissipation of the battery. In this way, not only is the heat dissipation efficiency and reliability of the energy storage device improved during operation, effectively extending its service life and ensuring system safety, but the problems of ice blockage, bacterial growth and frequent maintenance required by traditional condensate cooling methods are also avoided.

[0015] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of a module of an energy storage refrigerator according to some embodiments of this application; Figure 2 This is another schematic diagram of a module of an energy storage refrigerator according to some embodiments of this application; Figure 3 This is another schematic diagram of a module of an energy storage refrigerator according to some embodiments of this application; Figure 4 This is an overall schematic diagram of an energy storage refrigerator according to some embodiments of this application.

[0017] Icon labels: Energy storage refrigerator 100, refrigerant circulation loop 101, compressor 110, condenser 120, regulating and purifying unit 130, capillary tube 132, dryer filter 131, evaporator 140, refrigerator compartment evaporator 141, freezer compartment evaporator 142, circulation pipeline 150, heat exchanger 151, first switch 152, channel assembly 160, air supply channel 161, fan 162, energy storage device 102, temperature detection unit 103, cabinet 105, storage compartment 1051, battery compartment 1052, heat conduction pipe 106, second switch 1061. Detailed Implementation

[0018] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0020] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0023] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0024] Please see Figure 1-4 This application proposes an energy storage refrigerator 100, which includes a refrigerant circulation loop 101, an energy storage device 102, a temperature detection unit 103, and a controller.

[0025] The refrigerant circulation loop 101 contains refrigerant, which circulates and cools the refrigerator. The energy storage device 102 is configured to supply power to the energy storage refrigerator 100 and can be selectively thermally coupled to the refrigerant circulation loop 101. The temperature detection unit 103 is configured to detect the temperature of the energy storage device 102. The controller is electrically connected to the temperature detection unit 103 and is configured to control the thermal coupling between the refrigerant circulation loop 101 and the energy storage device 102 based on the temperature of the energy storage device 102 exceeding a first temperature threshold.

[0026] In the energy storage refrigerator 100 of this application, the temperature of the energy storage device 102 is monitored in real time by a controller, and when it exceeds a first temperature threshold, the energy storage device 102 is actively thermally coupled to the refrigerant circulation loop 101, thereby utilizing the cooling capacity of the refrigerator's own refrigeration system to implement efficient and precise active heat dissipation for the battery. In this way, not only is the heat dissipation efficiency and reliability of the energy storage device 102 improved during operation, effectively extending its service life and ensuring system safety, but the problems of ice blockage, bacterial growth and frequent maintenance required by traditional condensate cooling methods are also avoided.

[0027] Specifically, the energy storage refrigerator 100 is a special refrigeration device that combines electrical energy storage with efficient refrigeration. The energy storage refrigerator 100 can first store electrical energy (especially off-peak electricity, solar energy, and other low-cost or clean energy sources), and then release the electrical energy to drive the refrigeration system when needed, achieving off-peak electricity use or off-grid refrigeration, while balancing energy saving, cost control, and power supply stability. The energy storage refrigerator 100 solves the problem of traditional refrigerators' dependence on continuous power supply, and is particularly suitable for peak electricity consumption, power outage scenarios, or environments with unstable energy supply.

[0028] The energy storage refrigerator 100 can be either a direct-cooling refrigerator or a frost-free refrigerator. As you can understand, a direct-cooling refrigerator is one where the evaporator 140 directly contacts / is close to the air and food inside the refrigerator, relying on "natural convection + heat conduction" to transfer cold air. A frost-free refrigerator is one where a concealed evaporator 140 cools the air, and then a fan and air duct system "force-deliver the cold air" to all areas inside the refrigerator to achieve cold air transfer.

[0029] Please refer to further information. Figure 1-3 The energy storage refrigerator 100 may include a refrigerant circulation loop 101, an energy storage device 102, a temperature detection unit 103, and a controller. The refrigerant circulation loop 101 contains refrigerant, which is located within the loop and used for circulating cooling. When the energy storage refrigerator 100 is a direct-cooling refrigerator, the refrigerant may include a refrigerant; when it is an air-cooling refrigerator, the refrigerant may include air.

[0030] The refrigerant circulation loop 10 also includes a compressor 110, a condenser 120, a regulating and purifying unit 130, and an evaporator 140.

[0031] The compressor 110, condenser 120, regulating and purifying unit 130, and evaporator 140 are connected in series. The compressor 110 compresses the low-temperature, low-pressure gaseous refrigerant returned from the evaporator 140 into a high-temperature, high-pressure gaseous refrigerant. The condenser 120 exchanges heat between the high-temperature, high-pressure gaseous refrigerant and air, releasing heat and condensing it into a low-temperature liquid refrigerant. The regulating and purifying unit 130 may include a dryer filter 131 and a capillary tube 132 connected in series between the condenser 120 and the evaporator 140. The dryer filter 131 adsorbs moisture in the refrigerant and filters solid impurities, preventing moisture from freezing and clogging the capillary tube in subsequent low-temperature stages, or impurities from wearing down components and affecting circulation efficiency. The capillary tube 132 rapidly depressurizes and cools the high-pressure liquid refrigerant, converting it into a low-temperature, low-pressure gas-liquid mixture. The evaporator 140 rapidly evaporates the low-temperature, mist-like refrigerant, absorbing heat from the air inside the chamber and becoming a low-temperature, low-pressure gaseous refrigerant. In this way, the refrigerant circulation loop 101 continuously transfers heat from inside the refrigerator 100 to outside through the phase change of the refrigerant from gaseous to liquid to gaseous, thereby maintaining a low-temperature environment inside the refrigerator and achieving food preservation or freezing storage.

[0032] There can be one or more evaporators 140. For example, there can be one evaporator 140, and the energy storage refrigerator 100 can include a freezer compartment. The evaporator 140 is used to exchange heat with the freezer compartment to achieve cooling. Another example is that there can be one evaporator 140, and the energy storage refrigerator 100 can include a freezer compartment and a refrigerator compartment. The evaporator 140 is used to exchange heat with the refrigerator compartment and the freezer compartment respectively to achieve cooling. Yet another example is that when the energy storage refrigerator 100 includes a refrigerator compartment and a freezer compartment, there can be two evaporators 140, one for the refrigerator compartment evaporator 141 and the other for the freezer compartment evaporator 142. The refrigerator compartment evaporator 141 and the freezer compartment evaporator 142 are connected in series across the condenser 120 and the compressor 110. The refrigerator compartment evaporator 141 is used to exchange heat with the refrigerator compartment to achieve cooling, and the freezer compartment evaporator 142 is used to exchange heat with the freezer compartment to achieve cooling.

[0033] Energy storage device 102 is used to store electrical energy (especially off-peak electricity, solar energy, and other low-cost or clean energy sources), and then release the electrical energy to drive the refrigerant circulation loop 101 when needed. Energy storage device 102 may include individual battery cells, and there may be multiple individual battery cells. These individual battery cells can be connected in series, parallel, or in a hybrid configuration. A hybrid configuration means that multiple individual battery cells are connected in both series and parallel connections. Multiple individual battery cells can be directly connected in series, parallel, or in a hybrid configuration, and then the entire assembly of these individual battery cells is housed within a housing. Alternatively, multiple individual battery cells can first be connected in series, parallel, or in a hybrid configuration to form a battery module, and then these battery modules can be connected in series, parallel, or in a hybrid configuration to form a whole, which is then housed within a housing. Energy storage device 102 may also include other structures; for example, it may include a busbar for electrical connection between multiple individual battery cells.

[0034] In this application, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited thereto. The battery cell may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited thereto.

[0035] The refrigerant circulation loop 101 may be located at least partially close to or connected to the energy storage device 102, and may use liquid or gaseous refrigerant as an intermediate medium to selectively thermally couple with the energy storage device 102 by controlling the flow of the refrigerant.

[0036] The temperature detection unit 103 can be located inside or outside the energy storage device 102, and is used to monitor the temperature of the energy storage device 102. For example, in some examples, the temperature detection unit 103 can be a temperature sensor, and the detection range of the temperature detection unit 103 can be -20 degrees Celsius to 60 degrees Celsius.

[0037] The controller can be an MCU, electrically connected to the temperature detection unit 103 and the refrigerant circulation loop 101 respectively. The controller is configured to control the thermal coupling between the refrigerant circulation loop 101 and the energy storage device 102 when the temperature of the energy storage device 102 exceeds a first temperature threshold. That is, when the temperature of the energy storage device 102 exceeds the first temperature threshold, the controller controls the flow of refrigerant in the refrigerant circulation loop 102 to achieve thermal coupling with the energy storage device 102, thereby cooling the energy storage device 102.

[0038] Further, please refer to Figure 1 and Figure 3When the energy storage refrigerator 101 is a direct-cooling refrigerator, the refrigerant circulation loop 101 may include a circulation pipe 150. The circulation pipe 150 may be connected in parallel between the capillary tube 131 and the evaporator 140, or in parallel across the two ends of the evaporator 140. For example, the evaporator 140 includes a refrigerator compartment evaporator 141 and a freezer compartment evaporator 142 connected in series. The circulation pipe 150 is connected in parallel across the two ends of the refrigerator compartment evaporator 141, or in parallel across the two ends of the freezer compartment evaporator 142. The controller can control the flow of refrigerant in the circulation pipe 150 to selectively thermally couple it with the energy storage device 102.

[0039] Please see Figure 2 When the energy storage refrigerator 101 is a frost-free refrigerator, the refrigerant circulation loop 101 may include an air duct assembly 160. The air duct assembly 160 includes an air supply duct 161 and a fan 162. The air inlet of the air supply duct 161 is connected to the evaporator 140 (such as the refrigerator compartment evaporator 141), and the air outlet of the air supply duct 161 faces the energy storage device 102. The fan 162 is disposed in the air supply duct 161 and is configured to adjust the speed of thermal coupling between the air supply duct 161 and the energy storage device 102 according to the temperature.

[0040] In some other embodiments, the air duct assembly 160 may also include a return air duct, with the air inlet of the return air duct facing the energy storage device 102 and the air outlet of the return air duct connected to the evaporator 140. The return air duct facilitates the recovery and circulation of refrigerant.

[0041] Please refer to further information. Figure 3 In some embodiments, the energy storage refrigerator 100 further includes a heat exchanger 151 disposed in the refrigerant circulation loop 101 and configured to be thermally coupled to the energy storage device 102.

[0042] In this embodiment, the energy storage refrigerator 100 can be a direct-cooling refrigerator. The refrigerant circulation loop 101 may include a circulation pipe 150 connected in parallel between the compressor 110 and the capillary tube 132. The circulation pipe 150 may be set close to the energy storage device 102. The refrigerant circulation loop 101 can be selectively thermally coupled directly to the energy storage device 102 through the circulation pipe 150, thereby reducing the temperature of the energy storage device 102.

[0043] The heat exchanger is installed on the circulation pipeline 150. The heat exchanger 151 can be installed opposite the energy storage device 102. The heat exchanger 151 can be an evaporator, for example, but not limited to finned tube evaporator, coil evaporator, shell and tube evaporator, etc.

[0044] Thus, by installing a heat exchanger 151 on the circulation pipeline 150, the refrigerant can be used to conduct efficient and stable indirect heat exchange with the energy storage device 102 in the heat exchanger 151. This can avoid the temperature shock or sealing hazards that may be caused by direct contact of the refrigerant, and significantly improve the temperature control accuracy and heat dissipation effect of the energy storage device 102.

[0045] In some embodiments, the energy storage device 102 further includes a flow control unit disposed in the refrigerant circulation loop 101, the flow control unit being configured to adjust the rate of thermal coupling between the refrigerant circulation loop 101 and the energy storage device 102 according to the temperature.

[0046] Specifically, the flow control unit can be installed in the circulation pipe 150. The flow control unit is the core component in the circulation pipe 150 that regulates the refrigerant supply. The flow control unit can monitor the temperature around the energy storage device 102 in real time and convert the temperature into a driveable signal. When the temperature rises, the flow cross-sectional area of ​​the circulation pipe 150 is increased, allowing more refrigerant to flow into the circulation pipe 150; when the heat exchange demand decreases, the flow cross-sectional area is reduced, reducing the refrigerant flow rate, thereby ensuring that the refrigerant evaporates fully in the circulation pipe 150 without liquid backflow, balancing system efficiency and compressor 110 safety.

[0047] In this way, by setting a flow control unit and adjusting the flow rate in the circulation pipeline 150 in real time according to the temperature of the energy storage device 102, the refrigerant supply can be accurately allocated on demand, significantly improving thermal management efficiency and temperature control accuracy. While enhancing the heat dissipation effect, the system energy consumption is reduced, and the thermal safety and service life of the energy storage device 102 are further optimized.

[0048] In some embodiments, the flow control unit includes at least one of a thermostatic expansion valve and a temperature-sensing pressure-driven diaphragm.

[0049] It is worth noting that the Thermal Expansion Valve (TXV) is a throttling and flow control component used to reduce the pressure of liquid refrigerant on the high-pressure side of the system into low-pressure wet vapor, precisely matching the heat exchange requirements of heat exchanger 151 and dynamically controlling the refrigerant flow rate entering heat exchanger 151. The pressure of the temperature sensing bulb actuates the diaphragm, converting the temperature change signal of the refrigerant at the outlet of circulation pipe 150 into mechanical power that drives the valve core, ultimately achieving autonomous regulation of the refrigerant flow rate. This ensures the safety or emergency needs of the energy storage refrigerator 100 under specific conditions.

[0050] Thus, by adopting flow control units such as thermal expansion valves and / or temperature sensing bulbs to pressure-driven diaphragms, the refrigerant flow can be automatically and sensitively adjusted according to the temperature changes of the energy storage device 102, realizing autonomous and precise control of the heat dissipation process, further improving the response speed and temperature stability of the circulation pipeline 150, and enhancing the overall energy efficiency and operational reliability of the energy storage refrigerator 100.

[0051] In some embodiments, the refrigerant circulation loop 101 is provided with a first switch 152, and the controller is configured to control the first switch 152 to be turned on when the temperature of the energy storage device 102 is greater than a first threshold temperature, so that the refrigerant circulation loop 101 is thermally coupled to the energy storage device 102; the controller is also configured to control the first switch 152 to be turned off when the temperature of the energy storage device 102 is less than a second threshold temperature, so that the refrigerant circulation loop 101 stops thermally coupling with the energy storage device 102.

[0052] In some embodiments, the first switch 152 can be a solenoid valve. For example, the first switch 152 can be a normally closed solenoid valve, which is a solenoid valve whose valve port is kept completely closed by default when not energized, blocking the flow of medium; the first switch can also be a normally open solenoid valve, which is a solenoid valve whose valve port is kept completely open by default when not energized, allowing the flow of medium. When the energy storage refrigerator 100 is a direct-cooling refrigerator, the first switch 152 is set in the circulation pipeline 150 (e.g., Figure 1 Or 3), used to control the flow of refrigerant in the circulation pipe 150. When the energy storage refrigerator 100 is a frost-free refrigerator, the first switch 152 is set in the air supply duct 161 to control the flow of refrigerant in the air supply duct 161 (e.g., Figure 2 (As shown).

[0053] In some embodiments, the first threshold temperature can be a temperature point between 30 degrees Celsius and 40 degrees Celsius, and the second threshold temperature can be a temperature point between 10 degrees Celsius and 20 degrees Celsius. When the temperature detection unit 103 detects that the temperature of the energy storage device 102 is greater than the first threshold temperature (e.g., 35 degrees Celsius), the controller sends a control command to the first switch 152 to control the first switch 152 to be turned on, so that the refrigerant can flow through the circulation pipe 150 or the air supply channel 161 to cool the energy storage device 102. When the temperature detection unit 103 detects that the temperature of the energy storage device 102 is less than the second threshold temperature (e.g., 15 degrees Celsius), the controller sends a control command to the first switch 152 to close the first switch 152, so that the refrigerant cannot flow to the energy storage device 102 through the circulation pipe 150 or the air supply channel 161. For example, when the first switch 152 is a normally closed solenoid valve, when the temperature detection unit 103 detects that the temperature of the energy storage device 102 is greater than the first threshold temperature (e.g., 35 degrees Celsius), the controller sends a control command to the normally closed solenoid valve to control its opening, so that the refrigerant can pass through the circulation pipe 150 or the air supply channel 161 to cool the energy storage device 102; when the temperature detection unit 103 detects that the temperature of the energy storage device 102 is less than the second threshold temperature (e.g., 15 degrees Celsius), the controller stops sending control commands to the normally closed solenoid valve to control its closing, at which time the refrigerant cannot flow to the energy storage device 102 through the circulation pipe 150 or through the air supply channel 161. It is understood that when the first switch 152 is a normally open solenoid valve, when the temperature detection unit 103 detects that the temperature of the energy storage device 102 is less than the second threshold temperature (e.g., 15 degrees Celsius), the controller sends a control command to the normally open solenoid valve to control its closure. At this time, the refrigerant cannot flow to the energy storage device 102 through the circulation pipe 150 or through the air supply channel 161. When the temperature detection unit 103 detects that the temperature of the energy storage device 102 is greater than the first threshold temperature (e.g., 35 degrees Celsius), the controller stops sending control commands to the normally open solenoid valve to control its conduction, so that the refrigerant can pass through the circulation pipe 150 or the air supply channel 161 to cool the energy storage device 102.

[0054] Thus, by actively controlling the first switch 152 to turn on when the temperature of the energy storage device 102 exceeds the first threshold temperature, and controlling the first switch 152 to turn off when the temperature is below the second threshold temperature, the on-demand opening and closing of the circulation pipeline 150 or the air supply channel is achieved. This avoids unnecessary refrigerant flow, reduces system energy consumption, and ensures timely and reliable heat dissipation when the energy storage device 102 overheats, further optimizing the energy efficiency and response speed of thermal management.

[0055] Please see Figure 4In some embodiments, the energy storage refrigerator 100 further includes a cabinet 105 and a heat conduction pipe 106. The cabinet 105 contains a storage compartment 1051 and a battery compartment 1052. The storage compartment 1051 may house a compressor 110 and / or a condenser 120 for a refrigerant circulation loop 101. The energy storage device 102 is located within the battery compartment 1052. The heat conduction pipe 106 connects the storage compartment 1051 and the battery compartment 1052. The heat conduction pipe 106 is equipped with a second switch 1061. A controller is also electrically connected to the second switch 1061 and is configured to activate the second switch 1061 when the temperature of the energy storage device 102 is below a third threshold temperature, thereby connecting the storage compartment 1051 and the battery compartment 1052.

[0056] Specifically, the cabinet 105 can adopt a multi-layer composite heat insulation wall design, with an integrated vacuum heat insulation panel or phase change material inside, to significantly reduce heat loss and adapt to high temperature and high humidity environments; the cabinet 105 can be pre-set with air ducts or heat conduction pipes 106 slots for laying battery heat dissipation or waste heat utilization circuits. In terms of materials, the outer shell of the cabinet 105 can be made of corrosion-resistant, high-strength composite materials, while the interior uses environmentally friendly antibacterial insulation materials, taking into account both hygiene and structural durability.

[0057] The battery compartment 1052 and the storage compartment 1051 can also adopt a heat-insulating wall design, using vacuum insulation panels or phase change materials, to achieve independent heat insulation and avoid thermal interference. For example, the battery compartment 1052 and / or the storage compartment 1051 can be designed as independent modules with double-layer heat-insulating walls, and an airflow channel is set in the interlayer. By introducing the waste heat generated by the condenser 120 and / or compressor 110 in the storage compartment 1051, the active temperature maintenance of the battery compartment 1052 can be achieved, further improving the temperature adaptability and energy utilization efficiency of the energy storage refrigerator 100 under all operating conditions.

[0058] The battery compartment 1052 may have a first through hole and a second through hole. The first through hole is used to transfer external heat into the battery compartment 1052, and the second through hole can be connected to the heat conduction pipe 106. The second through hole is used to transfer refrigerant. There may be one or more second through holes. For example, when the energy storage refrigerator 100 is a frost-free refrigerator, the second through hole can be connected to the air outlet of the air supply channel 161. Refrigerant can be transferred from the second through hole into the battery compartment 1052 through the air supply channel 161, thereby cooling the energy storage device 102. For another example, when the energy storage refrigerator 100 is a direct-cooling refrigerator, there may be two second through holes. The circulation pipe 150 can enter the battery compartment 1052 through one of the second through holes and exit through the other second through hole. When the refrigerant flows through the circulation pipe 150, it can thermally couple with the energy storage device 102 in the battery compartment 1052, thereby cooling the energy storage device 102.

[0059] The heat-conducting pipe 106 can be configured as an insulated pipe or a variable-diameter structure to optimize heat transfer efficiency. A fan can also be added between the housing 1051 and the battery compartment 1052, so that when the second switch 1061 is turned on, the hot air generated by the compressor 110 is actively introduced into the battery compartment 1052 to accelerate the heating process under low-temperature conditions. On the other hand, multiple third threshold temperatures can be set, and the controller dynamically adjusts the opening degree of the second switch 1061 or the speed of the fan according to different temperature ranges to achieve more precise gradient temperature control. In addition, a temperature equalization air duct can be set to introduce the heat generated by the condenser 120 during operation into the heat-conducting pipe system to achieve multi-heat source coordinated heating, further improving energy utilization efficiency and the system's environmental adaptability.

[0060] Thus, by setting up a heat-conducting pipe 106 connecting the storage compartment 1051 and the battery compartment 1052 and a second switch 1061, and by intelligently opening the valve based on the controller when the temperature of the energy storage device 102 is lower than the third threshold temperature, the heat generated by the compressor 110 during operation can be directed into the battery compartment 1052, thereby effectively preventing the energy storage device 102 from degrading or being damaged in low-temperature environments, and improving the reliability of the equipment and the energy utilization efficiency.

[0061] In some embodiments, a thermal regulation component is provided inside the battery compartment 1052.

[0062] For example, the thermal regulation component can use a vacuum insulation plate or a phase change material plate to adjust the dynamic balance between thermal insulation and thermal conduction under different temperature conditions.

[0063] For example, the thermal regulation component can also be configured as a movable structure, which can be expanded or retracted by the controller according to the temperature of the energy storage device 102, thereby increasing the heat dissipation area when heat dissipation is needed and blocking heat exchange when heat preservation is needed.

[0064] Thus, by setting up a thermal regulation component inside the battery compartment 1052, the influence of the low temperature environment inside the refrigerator or the high temperature outside on the temperature of the energy storage device 102 can be effectively blocked, reducing temperature fluctuations, thereby improving the working efficiency and service life of the energy storage device 102, and reducing the energy consumption required for cooling or heating of the energy storage refrigerator 100.

[0065] In some embodiments, the refrigerant circulation loop 101 may also integrate a humidity sensor, which sends an alarm to the controller when an abnormal moisture content is detected in the energy storage refrigerator 100, thereby realizing status monitoring and early warning functions.

[0066] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy storage refrigerator, characterized in that, The energy storage refrigerator includes: A refrigerant circulation loop, wherein refrigerant is provided in the refrigerant circulation loop, and the refrigerant circulates and cools in the refrigerant circulation loop; An energy storage device is configured to power the energy storage refrigerator, and the energy storage device is optionally thermally coupled to the refrigerant circulation loop; A temperature detection unit is configured to detect the temperature of the energy storage device; A controller, electrically connected to the temperature detection unit, is configured to control the refrigerant circulation loop to thermally couple with the energy storage device based on the temperature of the energy storage device exceeding a first temperature threshold.

2. The energy storage refrigerator according to claim 1, characterized in that, The energy storage refrigerator also includes: A heat exchanger, located in the refrigerant circulation loop, is configured to be thermally coupled to the energy storage device.

3. The energy storage refrigerator according to claim 1, characterized in that, The energy storage device also includes: A flow control unit is installed in the refrigerant circulation loop, and the flow control unit is configured to adjust the rate of thermal coupling between the refrigerant circulation loop and the energy storage device according to the temperature.

4. The energy storage refrigerator according to claim 3, characterized in that, The flow control unit includes at least one of a thermostatic expansion valve and a diaphragm pressure sensor.

5. The energy storage refrigerator according to claim 1, characterized in that, The refrigerant circulation loop is provided with a first switch, and the controller is configured to control the first switch to be turned on when the temperature of the energy storage device is greater than a first threshold temperature, so that the refrigerant circulation loop is thermally coupled to the energy storage device; the controller is also configured to control the first switch to be turned off when the temperature of the energy storage device is less than a second threshold temperature, so that the refrigerant circulation loop stops thermally coupling with the energy storage device.

6. The energy storage refrigerator according to claim 1, characterized in that, The energy storage refrigerator also includes: The cabinet has a storage compartment and a battery compartment. The storage compartment can be equipped with a compressor and / or condenser for the refrigerant circulation loop. The energy storage device is located in the battery compartment. A heat-conducting pipe is provided between the accommodating compartment and the battery compartment, and the heat-conducting pipe is equipped with a second switch; The controller is also electrically connected to the second switch, and the controller is further configured to control the second switch to turn on when the temperature of the energy storage device is less than a third threshold temperature, so that the accommodating compartment is connected to the battery compartment.

7. The energy storage refrigerator according to claim 6, characterized in that, The battery compartment is equipped with a thermal regulation component.

8. The energy storage refrigerator according to claim 1, characterized in that, The refrigerant circulation loop includes a compressor, a condenser, an evaporator, a regulating and purifying unit, and a circulation pipeline. The compressor, condenser, regulating and purifying unit, and evaporator are connected in series. The circulation pipeline is connected in parallel at both ends of the evaporator; or in parallel between the evaporator and the regulating and purifying unit; or in parallel between the evaporator and the compressor.

9. The energy storage refrigerator according to claim 8, characterized in that, The evaporator includes a refrigerator compartment evaporator and a freezer compartment evaporator connected in series, and the circulation pipeline is connected in parallel at both ends of the refrigerator compartment evaporator or in parallel at both ends of the freezer compartment evaporator.

10. The energy storage refrigerator according to claim 1, characterized in that, The refrigerant circulation loop includes a compressor, a condenser, an evaporator, and an air duct assembly. The compressor, condenser, and evaporator are connected in series. The air duct assembly includes an air supply duct and a fan. The air inlet of the air supply duct is connected to the evaporator, and the air outlet of the air supply duct faces the energy storage device. The fan is installed in the air supply duct and is used to supply air into the energy storage device.

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