Novel energy storage vehicle-mounted refrigerator

Abstract

The utility model discloses a novel energy storage vehicle-mounted refrigerator, and relates to the technical field of refrigeration. The device comprises a box body, a novel energy storage heat exchange system and a control system, the novel energy storage heat exchange system comprises an energy storage body containing a cold storage medium; the cooling channel penetrates through the air duct system of the energy storage body; the heat exchange part is communicated with the vehicle-mounted refrigerating system and comprises a first heat exchange structure in contact with the cold storage medium; and the air guide part drives air to flow through the cooling channel. The first heat exchange structure is provided with a channel and / or a heat exchange piece used for circulating a refrigerant of the vehicle-mounted refrigerating system, and the first heat exchange structure is used for efficiently transmitting the cooling capacity of the refrigerant of the vehicle-mounted refrigerating system to the cold storage medium and / or transmitting the cooling capacity to air through the wall of the cooling channel. Optionally, a second heat exchange structure is arranged in the cooling channel to further strengthen heat exchange of the air. According to the utility model, the heat exchange structure is optimized, so that the refrigeration and cold accumulation efficiency of the system by utilizing the vehicle-mounted refrigeration system is improved.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration technology, and in particular to a novel energy-storage vehicle-mounted refrigerator. Background Technology

[0002] As automobiles become an integral part of modern life, people's demands for in-car comfort and convenience are increasing. Car refrigerators, as devices that can provide refrigerated or frozen food and beverages for drivers and passengers, have received widespread attention. Currently, there are two main types of car refrigerators on the market: semiconductor refrigeration refrigerators and compressor refrigeration refrigerators.

[0003] Semiconductor-cooled refrigerators utilize the Peltier effect for cooling. Their advantages include simple structure, compact size, no noise or vibration from moving parts, and relatively low cost. However, their disadvantages are also significant: low cooling efficiency leading to high energy consumption; limited cooling capacity, typically only achieving a temperature difference of 15-20°C below ambient temperature, making it difficult to meet the needs of refrigeration, preservation, or even freezing; and slow cooling speed.

[0004] Compressor-cooled refrigerators use a vapor compression refrigeration cycle similar to that of household refrigerators, providing rapid and powerful cooling, reaching refrigeration temperatures below 0°C and even freezing temperatures as low as -18°C, with relatively high cooling efficiency. However, these refrigerators require a complete built-in refrigeration system, including a compressor, condenser, evaporator, and throttling device, resulting in a complex structure, large size, and heavy weight. This not only occupies interior space but may also affect fuel economy or driving range. Furthermore, the compressor generates noise and vibration during operation, impacting the driving experience. In addition, these refrigerators are also more expensive.

[0005] More importantly, both types of car refrigerators face a common problem: how to continue cooling after the vehicle is turned off. The traditional solution relies on the vehicle's battery for power, but this consumes a lot of electrical energy and may affect the vehicle's normal starting, especially when the vehicle is parked for a long time. Once the battery is depleted, the refrigerator loses its cooling capacity, and the internal temperature rises rapidly, making it impossible to guarantee the quality of stored items.

[0006] To address these issues, researchers began exploring solutions that integrate in-vehicle refrigerators with the vehicle's own air conditioning system. Vehicle air conditioning systems typically have a cooling capacity far exceeding the refrigerator's requirements. Utilizing this "surplus" cooling capacity to cool the refrigerator eliminates the need for the refrigerator's own compressor and condenser, resulting in miniaturization, weight reduction, low noise, and low cost. However, simple integration methods, such as directly drawing in cold air from the air conditioning system or using a simple external heat exchanger, often suffer from low heat exchange efficiency, inaccurate temperature control, and the inability to utilize cold storage. Some solutions incorporating cold storage concepts can address the cooling problem after the engine is turned off to some extent, but there is still room for improvement in terms of cold storage / release efficiency, structural compactness, and intelligent control strategies. For example, how to efficiently store cold energy within a limited volume? How to quickly and effectively release the stored cold energy into the refrigerator? How to intelligently manage the cold storage and release processes based on actual needs and vehicle status? How to meet users' needs for deep freezing (e.g., -18°C) while integrating the air conditioning system? These are challenges that current technologies have not yet perfectly solved.

[0007] Therefore, developing a new cold storage technology solution can not only make full use of the advantages of existing cold sources, but also achieve long-term cooling after the flameout through efficient cold storage technology. At the same time, it has a compact structure, quiet operation, intelligent temperature control capabilities, and optional deep cooling function, which has important practical significance and market value. Utility Model Content

[0008] This invention aims to address the problem of low cold energy transfer efficiency in existing cold energy storage systems that utilize vehicle air conditioning cold sources to store cold energy in a cold storage medium and to cool the air. Existing solutions often lack optimization in the design of heat exchange structures between the cold source and the cold storage medium, between the cold source and the flowing air, and between the cold storage medium and the flowing air. This results in slow cold energy storage speed, poor direct cooling effect on the air, and low overall energy efficiency, thus affecting the performance of devices such as vehicle refrigerators. The main objective of this invention is to provide a novel energy storage vehicle refrigerator that significantly improves the efficiency of cold energy transfer between the various media within the system.

[0009] To solve the above-mentioned technical problems, this utility model provides a novel energy-storage vehicle-mounted refrigerator, comprising:

[0010] The box body defines the storage space;

[0011] A novel energy storage heat exchange system is installed on the housing, and the air inlet and outlet of its air duct system are both connected to the storage space.

[0012] A control system, wherein the control system is used to control the operating status of the novel energy storage heat exchange system;

[0013] The novel energy storage heat exchange system includes:

[0014] An energy storage body for absorbing and storing cold energy transferred from an on-board refrigeration system; the energy storage body includes a shell having an internal containment space and a cold storage medium filled in the internal containment space;

[0015] The air duct system includes: an air inlet duct having at least one air inlet for air to enter; an air outlet duct having at least one air outlet for air to exit; and a cooling duct that penetrates the internal containment space of the energy storage body and is sealed to the energy storage body, wherein the two ends of the cooling duct are respectively connected to the air inlet duct and the air outlet duct.

[0016] A heat exchange section is connected to the refrigerant of the vehicle-mounted refrigeration system and is adapted to receive cooling capacity from the refrigerant; the heat exchange section includes a first heat exchange structure in contact with the cold storage medium;

[0017] An air guide section is used to drive air to flow sequentially through the air inlet channel, the cooling channel, and the air outlet channel;

[0018] When the refrigerant is introduced into the first heat exchange structure, the first heat exchange structure is adapted to cool the cold storage medium to store cold energy, and / or directly cool the air flowing through the cooling channel; and the air flowing through the cooling channel is adapted to exchange heat with the cold storage medium and / or the first heat exchange structure and be cooled, and the cooled air is sent out from the air outlet channel.

[0019] As a preferred technical solution, the cooling channel includes at least one air duct; the outer wall of the air duct is in direct contact with the cold storage medium and / or the first heat exchange structure. This allows for efficient heat exchange between the air flowing within the air duct and the external cold storage medium or the first heat exchange structure through the air duct wall.

[0020] As a preferred technical solution, the first heat exchange structure includes at least one first heat exchange plate for increasing the heat exchange area between the refrigerant and the cold storage medium, and at least one cold source channel for the refrigerant to circulate; the cold source channel is at least partially immersed in the cold storage medium. By setting the first heat exchange plate and the immersed cold source channel, the contact area and heat exchange efficiency between the cold source and the cold storage medium are significantly increased, which is beneficial for rapid cold storage.

[0021] As a preferred technical solution, the first heat exchange plate is connected to the outer wall of the air duct. This structure combines the heat exchange plate with the air duct wall, so that the cold source can not only efficiently cool the cold storage medium, but its cold energy can also be directly transferred to the air flowing through the air duct through the heat exchange plate and the air duct wall, achieving the dual effects of cold storage and direct cooling.

[0022] As a preferred technical solution, the cold source channel is connected to the outer wall of the first heat exchange plate and / or the cooling channel. This arrangement ensures that the cold source channel is tightly integrated with the heat dissipation structure, which is beneficial for the rapid conduction of cold energy.

[0023] As a preferred technical solution, the cooling channel includes at least one air duct; the heat exchange section further includes a second heat exchange structure located inside the air duct, the second heat exchange structure including at least one second heat exchange plate for increasing the heat exchange area between the air flowing through the air duct and the cold source. Adding a second heat exchange structure inside the air duct allows for direct forced cooling of the air, further improving cooling efficiency and cooling speed.

[0024] As a preferred technical solution, the second heat exchange plate is connected to the inner wall of the air duct. This ensures that the heat exchange plate has sufficient contact with the flowing air.

[0025] As a preferred technical solution, the heat exchange section further includes a temperature control valve, which is installed on the pipeline that introduces the cold source into the heat exchange section. The temperature control valve is used to adjust the flow rate of the cold source into the heat exchange section according to the temperature of the energy storage body. Through the temperature control valve, the flow rate of the cold source can be intelligently controlled according to the cold storage demand, avoiding excessive cold storage or waste of cold energy.

[0026] As a preferred technical solution, the air guide includes a fan; a fan is provided at least one of the following locations: between the air inlet channel and the cooling channel, or between the air outlet channel and the cooling channel, at the air inlet, at the air outlet, or inside the cooling channel. The fan provides the power for airflow, and its position can be flexibly selected according to the specific design.

[0027] As a preferred technical solution, the control system includes: a first temperature sensor for detecting the temperature of the storage space; a second temperature sensor for detecting the temperature of the energy storage body; and a controller electrically connected to the first temperature sensor, the second temperature sensor, and the air guide. The controller controls the opening and closing of the air guide based on the detection results of the first and second temperature sensors. By monitoring the internal temperature of the refrigerator and the temperature of the cold storage body in real time, the fan operation can be controlled on demand, achieving precise temperature control and energy saving.

[0028] As a preferred technical solution, when the novel energy storage heat exchange system includes a temperature control valve, the controller is also electrically connected to the temperature control valve and is used to control the opening and closing or the opening degree of the temperature control valve based on the detection result of the second temperature sensor and / or the vehicle operating status. Integrating the temperature control valve into the control system allows for more intelligent management of the cold storage process.

[0029] As a preferred technical solution, the vehicle refrigerator further includes a cold air intake duct; the cold air intake duct guides the cooled air from the air outlet of the duct system to the upper area of ​​the storage space. Optimizing the airflow path of the cold air helps to create a more uniform temperature distribution within the storage space.

[0030] As a preferred technical solution, the cold air inlet duct is at least partially arranged on the outer wall of the housing. This arrangement can reduce the space occupied by the storage unit.

[0031] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0032] 1. High-efficiency heat exchange: Through the optimized design of the first heat exchange structure (first heat exchange plate, cold source channel immersion) and the second heat exchange structure (second heat exchange plate), the heat exchange efficiency from the cold source to the cold storage medium, from the cold source to the air, and from the cold storage medium to the air is significantly improved.

[0033] 2. Rapid cold storage and cooling: The efficient heat exchange structure enables faster cold storage and enhances the ability to directly cool air, thus improving the cooling response speed.

[0034] 3. Compact and optimized structure: The heat exchange structure is tightly integrated with the energy storage body and cooling channel, which is conducive to the miniaturization and integration of the system.

[0035] 4. Extend offline cooling time: Efficient cold storage means that more cold energy can be stored, thereby extending the cooling time after the vehicle is turned off.

[0036] 5. Improve temperature uniformity inside the refrigerator: Combined with an optimized cold air intake duct, it can improve the temperature distribution inside the refrigerator. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of a novel energy storage heat exchange system provided in an embodiment of this utility model.

[0039] Figure 2 This is a cross-sectional schematic diagram of a novel energy storage heat exchange system provided in an embodiment of this utility model.

[0040] Figure 3This is a cross-sectional schematic diagram of another novel energy storage heat exchange system provided in this embodiment of the present invention.

[0041] Figure 4 This is a cross-sectional schematic diagram of a novel energy storage heat exchange system including a second heat exchange structure provided in an embodiment of this utility model.

[0042] Figure 5 This is a schematic diagram of the structure of a novel composite heat exchange system including a secondary refrigeration unit in an embodiment of this utility model.

[0043] Figure 6 This is a three-dimensional cross-sectional view of a novel composite heat exchange system including a secondary refrigeration unit in an embodiment of this utility model.

[0044] Figure 7 This is a structural schematic diagram of a novel energy storage vehicle-mounted refrigerator provided in an embodiment of this utility model.

[0045] Figure 8 This is a schematic diagram of the structure of a novel composite heat exchange vehicle-mounted refrigerator provided in this embodiment of the utility model.

[0046] Figure 9 This is a three-dimensional partial cross-sectional view of a novel composite heat exchange vehicle-mounted refrigerator provided in this embodiment of the present invention.

[0047] Figure 10 This is a flowchart illustrating a novel energy storage heat exchange system control method (without a secondary refrigeration unit) provided in an embodiment of this utility model.

[0048] Figure 11 This is a flowchart illustrating a novel composite heat exchange system control method (with a secondary refrigeration unit) provided in an embodiment of this utility model.

[0049] in:

[0050] 10. Energy storage body; 11. Shell; 111. Internal containment space; 12. Cold storage medium;

[0051] 20. Air duct system; 21. Air inlet duct; 22. Air outlet duct; 23. Cooling duct;

[0052] 30. Heat exchange section; 31. First heat exchange structure; 311. First heat exchange plate; 312. Cold source channel;

[0053] 32. Second heat exchange structure; 321. Second heat exchange plate; 33. Temperature control valve;

[0054] 40. Air guide section; 41. Fan;

[0055] 50. Secondary refrigeration unit; 51. Semiconductor refrigeration component; 52. Heat dissipation structure; 521. Third heat exchange plate; 53. Cooling structure; 531. Fourth heat exchange plate;

[0056] 100. Car refrigerator; 110. Container; 120. Storage space;

[0057] 130. Cold air intake duct;

[0058] 140. Vehicle refrigeration system; 141. Refrigerant compressor; 142. Condenser; 143. Evaporator; 144. Expansion valve; 145. Electromagnetic expansion valve; 146. Capillary tube; 147. Large-diameter electromagnetic expansion valve;

[0059] TC, actual temperature of the storage space; TS, target set temperature; TX, actual temperature of the energy storage body; TXb, saturation temperature of the cold storage medium; TE, ambient temperature; VH, high speed of the compressor; VL, low speed of the compressor. Detailed Implementation

[0060] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0061] Furthermore, the term "and / or" in the embodiments of this utility model is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. Unless otherwise explicitly specified and limited, the terms "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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] This invention can solve at least some of the problems existing in the cold storage system and vehicle refrigerator in the prior art, such as high energy consumption, limited cooling time after the vehicle is turned off, insufficient cooling depth, and imprecise control strategy. Specifically, the technical problems to be solved by this invention include:

[0063] 1. How to improve the efficiency of transferring cold energy from the cold source to the cold storage medium and the air inside the refrigerator.

[0064] 2. How to achieve effective and long-term cooling by utilizing stored cold energy after the vehicle is turned off.

[0065] 3. How to provide stronger cooling capacity when necessary to meet needs such as deep freezing.

[0066] 4. How to achieve intelligent and efficient control and optimize energy utilization based on factors such as refrigerator temperature, cold storage status, environmental conditions, and vehicle operating status.

[0067] Example 1: Novel Energy Storage Heat Exchange System

[0068] like Figure 1 and Figure 2 As shown, this embodiment provides a novel energy storage heat exchange system. The system mainly includes an energy storage body 10, a duct system 20, a heat exchange section 30, and an air guide section 40.

[0069] The function of the energy storage body 10 is to absorb and store the cold energy from the cold source. The energy storage body 10 has a shell 11 that defines an internal housing space 111.

[0070] The shell 11 of the energy storage body 10 can be made of high-density rigid polyurethane foam as the insulation layer, which has low thermal conductivity and good structural strength. Preferably, vacuum insulation panel (VIP) technology can be used, in which the core material (such as glass fiber or fumed silica) is placed in a high-barrier membrane and vacuum-sealed. Its thermal conductivity can reach 0.004 W / (m·K) or even lower, and its insulation performance far exceeds that of traditional materials. The insulation layer thickness can be significantly reduced while maintaining the same insulation effect, thereby increasing the effective volume or reducing the overall size. The shell 11 needs to ensure good airtightness, especially when filled with liquid or semi-solid cold storage medium 12.

[0071] The choice of the cold storage medium 12 depends on the required cooling temperature range of the vehicle refrigerator. Generally, through a phase change process, the cold storage medium 12 can absorb or release a large amount of latent heat at a relatively small temperature difference, thereby achieving efficient cold storage and release. Of course, non-phase change cold storage liquids with high specific heat capacity, such as aqueous solutions of ethylene glycol, can also be used.

[0072] In some embodiments of this invention, the cold storage medium 12 is a phase change material (PCM), such as a salt solution, ethylene glycol solution, paraffin, or other organic / inorganic phase change materials that can undergo solid-liquid phase transitions at different temperatures such as 0°C, -5°C, -10°C, -15°C, and -20°C. PCMs can absorb or release a large amount of latent heat during solid-liquid phase transitions, exhibiting high energy storage density, which helps maintain stable low temperatures for extended periods at specific temperature points.

[0073] The air duct system 20 is used to guide airflow through the energy storage body 10 for heat exchange. The air duct system 20 includes an air inlet duct 21, an air outlet duct 22, and a cooling duct 23. The air inlet duct 21 has one or more air inlets for drawing air from the space to be cooled (e.g., the storage space of a car refrigerator). The air outlet duct 22 has one or more air outlets for returning the cooled air to the space to be cooled. The cooling duct 23 is a key component for air heat exchange; it penetrates the internal housing space 111 of the energy storage body 10 and, in some embodiments of this invention, forms a sealed structure with the housing 11 to prevent the cold storage medium 12 from leaking into the airflow path. The two ends of the cooling duct 23 are connected to the air inlet duct 21 and the air outlet duct 22, respectively, forming a complete air inlet and outlet path.

[0074] The cross-sectional shape (circular, rectangular, flat) and number of cooling channels can be designed according to the required airflow and heat exchange area. Internal turbulence structures (such as corrugated walls, built-in small fins, etc.) can be incorporated to enhance airflow turbulence and improve the heat transfer coefficient.

[0075] In some embodiments of this utility model, such as Figure 2 As shown, the cooling channels 23 can be designed as tubular air ducts, with the outer walls of these ducts directly contacting the cold storage medium 12 inside the energy storage body 10. The material of the air duct should have good thermal conductivity, such as aluminum or copper. When air flows inside the air duct, it exchanges heat with the external cold storage medium 12 through the air duct walls.

[0076] In some optional embodiments of this invention, the cooling channel 23 may be one or more independent air ducts that traverse the cold storage medium 12. Air is forced to flow within these air ducts and exchanges heat with the external low-temperature cold storage medium 12 through the walls of the air duct 23a.

[0077] like Figures 2 to 4 As shown, the heat exchange unit 30 is responsible for transferring the cold energy of the cold source to the energy storage body 10 or directly to the air flowing through the cooling channel 23, or simultaneously transferring the cold energy of the cold source to the energy storage body 10 and the air flowing through the cooling channel 23.

[0078] The heat exchange unit 30 is connected to the refrigeration cycle of the cold source via a pipe to receive low-temperature, low-pressure cold sources (such as R134a, R1234yf, etc.). The core of the heat exchange unit 30 is the first heat exchange structure 31, which is located inside the energy storage body 10 and is in direct contact with the cold storage medium 12.

[0079] In some embodiments of this invention, the heat exchange unit 30 is an interface and channel for connecting a cold source and introducing cold energy into the energy storage body 10. It includes a connecting pipe (not shown) and a first heat exchange structure 31 disposed in the internal accommodating space of the energy storage body 10 and in direct contact with the cold storage medium 12. One end of the connecting pipe is connected to the low-pressure side of the cold source, and the other end is connected back to an appropriate location in the air conditioning system (e.g., before the compressor inlet, passing through a gas-liquid separator as needed).

[0080] In some embodiments of this utility model, such as Figure 3 The diagram illustrates a specific form of the first heat exchange structure 31. The first heat exchange structure 31 may include at least one cold source channel 312 and at least one first heat exchange plate 311. The cold source channel 312 is used for the flow of cold source energy. At least a portion of this channel is immersed in the cold storage medium 12. The first heat exchange plate 311 is connected to the cold source channel 312 and extends into the cold storage medium 12, its function being to greatly increase the heat exchange area between the cold source and the cold storage medium 12, thereby improving the cold storage efficiency. In this embodiment, the first heat exchange plate 311 may be designed in a corrugated, finned, or other complex shape. More preferably, as shown... Figure 3 As shown, the first heat exchange plate 311 can be connected to the outer wall of the cooling channel 23 or the air duct of the cooling channel 23, while the cold source channel 312 can be arranged on the first heat exchange plate 311 or directly attached to the outer wall of the cooling channel 23. This structure allows the cold energy flowing through the cold source channel 312 to not only be efficiently transferred to the surrounding cold storage medium 12 for cold storage through the first heat exchange plate 311, but also to be directly transferred to the air flowing through the cooling channel 23 through contact with the outer wall of the cooling channel 23 (directly or indirectly through the second heat exchange plate), thus achieving direct cooling of the air. This design combines cold storage and direct cooling, improving the system's flexibility and response speed.

[0081] The air guide section 40 is used to generate airflow, driving air to circulate within the air duct system 20. The air guide section 40 typically consists of one or more fans 41. The fans 41 can be installed in different locations within the air duct system 20; for example, they can be installed at the air inlet to draw air into the system; or at the air outlet to blow cool air out; or inside the cooling channel 23; or between the air inlet channel 21 and the cooling channel 23; or between the air outlet channel 22 and the cooling channel 23. The fans 41 of the air guide section 40 should be low-noise, long-life, low-power automotive-grade fans, such as DC brushless fans. Their airflow and air pressure need to be matched according to the resistance characteristics of the cooling channel 23 and the required heat exchange. Adjusting the fan speed using methods such as PWM (Pulse Width Modulation) allows for finer temperature control and energy savings. The start / stop and speed of the fans 41 can be controlled by the control system described later.

[0082] The following explanation uses the vehicle-mounted installation as an example; the working principle is basically the same for other usage scenarios:

[0083] 1. Cold Storage / Direct Cooling Mode (Air Conditioning On): The vehicle's air conditioning system operates, and a low-temperature cold source is introduced into the cold source channel 312 of the heat exchange section 30. The cold energy of the cold source is transferred to the cold storage medium 12 through the first heat exchange plate 311 and the channel wall, causing it to cool down and condense (phase change cold storage). Simultaneously, if the air guide section 40 (fan 41) is turned on, air is driven to flow through the cooling channel 23. Since the first heat exchange structure 31 (especially when it is combined with the outer wall of the cooling channel 23) itself is very low in temperature, the air will directly exchange heat with it and be cooled as it flows through. In addition, the partially cooled cold storage medium 12 also cools the air through the pipe wall of the cooling channel 23. The cooled air is sent out from the air outlet channel 22 to cool the target space (such as the refrigerator storage space).

[0084] 2. Cooling Release Mode (Air Conditioning Off): The vehicle's air conditioning system stops supplying cold to the heat exchange unit 30. At this time, if the target space temperature is higher than the set value, the control system activates the air guide unit 40 (fan 41). Air is driven to flow through the cooling passage 23. Because the outer wall of the cooling passage 23 is in contact with the stored cold storage medium 12, the air exchanges heat with the cold storage medium 12 through the pipe wall of the cooling passage 23, absorbing the cold released by the cold storage medium 12 and being cooled. The cooled air is then sent out from the air outlet 22, maintaining the low temperature of the target space. This process can continue until the cold stored in the cold storage medium 12 is exhausted or the temperature rises to a certain level.

[0085] Example 2: A novel energy storage heat exchange system with an internal heat exchange structure

[0086] This embodiment is an improvement on embodiment 1.

[0087] like Figure 4 As shown, to further improve the direct cooling effect on the air, especially when rapid cooling is required, a second heat exchange structure 32 can be added inside the cooling channel 23 (air duct). The second heat exchange structure 32 includes at least one second heat exchange plate 321, which is installed on the inner wall of the air duct and directly contacts the air flowing through the air duct, greatly increasing the contact area between the air and the cold source. The second heat exchange plate 321 can be in the form of fins, corrugated plates, etc.

[0088] In some embodiments of this utility model, it is also possible to Figure 2 Based on the embodiment described herein, a second heat exchange plate 321 as described above is added.

[0089] Example 3: A novel energy storage heat exchange system with a temperature control valve

[0090] like Figure 1 and Figure 5 As shown, in this embodiment, based on Embodiment 1 or 2, a temperature control valve 33 is installed on the pipeline leading the cold source into the heat exchange section 30 to more precisely control the cold storage process and the cold source flow. The temperature control valve 33 can be an adjustable flow valve such as a solenoid valve or an electronic expansion valve. This valve is connected to the control system described later. The control system can control the opening or closing of the temperature control valve 33 or its opening degree according to the temperature of the energy storage body 10 (e.g., measured by a second temperature sensor 132 installed on the energy storage body 10). For example, when the temperature of the energy storage body 10 is high and cold storage is required, the valve is opened; when the temperature of the energy storage body 10 has reached a preset low temperature value (e.g., below a certain temperature of the phase change point), indicating that cold storage is sufficient, the valve can be closed or its opening degree reduced to stop or reduce the flow of cold source, avoiding waste of cold energy or over-cooling. At the same time, the valve can also be controlled in conjunction with the vehicle's operating status (e.g., air conditioning system load, battery status, etc.).

[0091] Example 4: Novel Composite Heat Exchange System

[0092] like Figure 5 and Figure 6 As shown, this embodiment adds a secondary refrigeration unit 50 based on any one of the embodiments 1 to 3 to meet lower refrigeration temperature requirements (such as -18°C freezing) or enhance refrigeration capacity under certain operating conditions.

[0093] The core of the secondary cooling unit 50 is one or more semiconductor cooling components 51 (Peltier / TEC modules). When the semiconductor cooling component 51 is powered on, one side (cold end) absorbs heat and cools down, while the other side (hot end) generates heat.

[0094] The cold end of the secondary cooling unit 50 needs to be coupled to the object being cooled. There are two main methods:

[0095] Method 1: The cold end is directly or through a thermally conductive structure coupled to the energy storage body 10 to further cool the cold storage medium 12. This method can lower the temperature of the cold storage medium and store more cold energy, but the direct cooling effect on the air is relatively indirect.

[0096] Method 2 (e.g.) Figure 5 and Figure 6(As shown): The cold end is coupled to the airflow path of the air duct system 20. Specifically, a cooling structure 53 can be provided in the air duct system 20 (e.g., inside the cooling channel 23 or at the air outlet channel 22), which is connected to the cold end of the semiconductor cooling device 51. The cooling structure 53 typically includes multiple fourth heat exchange plates 531 (e.g., finned heat sinks) to increase the heat exchange area between the cold end and the flowing air. When the semiconductor cooling device 51 is working, the cooling energy generated at the cold end is efficiently transferred to the air through the fourth heat exchange plates 531, achieving secondary deep cooling of the air flowing out of the cooling channel 23.

[0097] The heat generated at the hot end of the secondary cooling unit 50 must be effectively dissipated, otherwise the cooling effect at the cold end will be affected. Therefore, a heat dissipation structure 52 is provided and connected to the hot end. For efficient heat dissipation, the heat dissipation structure 52 can be immersed in the cold storage medium 12 of the energy storage body 10. The large heat capacity of the cold storage medium 12 is used to absorb the heat generated at the hot end. This method is compact and has good heat dissipation effect when the temperature of the cold storage medium is low. To further improve heat dissipation efficiency, the heat dissipation structure 52 may include one or more third heat exchange plates 521 to increase the contact area between the hot end and the cold storage medium 12. Of course, the heat dissipation structure 52 can also use other methods for heat dissipation, such as through a separate air-cooled or water-cooled system, but this would increase the complexity of the system. Discharging heat into the cold storage medium 12 is a relatively simple solution that can utilize existing components.

[0098] The start and stop of the semiconductor cooling element 51 in the secondary cooling unit 50 is controlled by the control system described later as needed. For example, when the user sets a very low temperature (such as -18°C), or when the main cooling system (air conditioning cold source + cold storage) cannot meet the cooling requirements, the controller 133 can start the semiconductor cooling element 51.

[0099] In some embodiments of this utility model, by changing the direction of the current, the cold end and the hot end of the semiconductor cooling element 51 are changed. At this time, the energy storage body 10 can store heat and the hot air circulating in the air duct system 20 can extend the heat preservation time.

[0100] Example 5: A novel energy-storage vehicle-mounted refrigerator

[0101] like Figure 7 As shown, this embodiment provides a novel energy storage vehicle-mounted refrigerator 100, which integrates the novel energy storage heat exchange system described in any one of embodiments 1 to 3.

[0102] The vehicle refrigerator 100 includes a cabinet 110 with good thermal insulation performance (e.g., using a foamed insulation layer) and defines a storage space 120 for storing food, beverages and other items.

[0103] A novel energy storage heat exchange system (in the form of an energy storage body 10, an air duct system 20, a heat exchange section 30, an air guide section 40, and optionally a temperature control valve 33) is installed on the refrigerator body 110. This can be achieved by embedding the entire system as a module within the refrigerator body wall, or by placing some components (such as the energy storage module) in specific locations or on other equipment. Crucially, both the air inlet and outlet of the air duct system 20 are connected to the storage space 120, allowing the air guide section 40 to drive the airflow within the storage space 120 through the cooling channel 23 for cooling circulation. In some optional embodiments of this invention, the novel energy storage heat exchange system is placed within the refrigerator's foamed insulation layer.

[0104] The new energy-storage vehicle-mounted refrigerator 100 also includes a control system. The control system is responsible for monitoring the status and controlling the operation of the new energy-storage heat exchange system. The control system includes at least:

[0105] First temperature sensor: installed inside the storage space 120 (e.g., on the inner wall, or placed inside the foam layer near the inner liner) to detect the actual temperature TC of the storage space 120.

[0106] Second temperature sensor: installed on or inside the energy storage body 10, used to detect the temperature TX of the energy storage body 10, reflecting the temperature and cold storage state of the cold storage medium 12.

[0107] Controller: Typically a microcontroller (MCU) or similar processor. It receives signals from a first temperature sensor and a second temperature sensor. The controller is also electrically connected to the air duct 40 (fan 41) and can control the fan's start / stop and / or speed. Based on the detected temperatures TC and TX and the user-set target temperature TS, the controller determines when to turn the fan 41 on or off and adjusts the fan 41 speed according to its built-in control logic (see Embodiment 7).

[0108] Optionally, the control system may also include an ambient temperature sensor for detecting the ambient temperature outside the refrigerator. This information can be used to optimize the control strategy, particularly when controlling the secondary refrigeration unit 50 (see Example 6).

[0109] If the new energy storage heat exchange system is equipped with a temperature control valve 33, the controller is also electrically connected to the temperature control valve 33 and controls the opening and closing or opening degree of the temperature control valve 33 according to the detection results of TX and / or the vehicle operating status (e.g., whether it is necessary to prioritize air conditioning or battery cooling), thereby intelligently managing the cold storage process.

[0110] In some embodiments of this invention, the cold source originates from the vehicle-mounted refrigeration system 140. The returning low-pressure gaseous refrigerant is compressed by the compressor 141, transforming it into a high-pressure gaseous refrigerant, which flows into the condenser 142. In the condenser 142, the refrigerant exchanges heat with the ambient air outside the vehicle or the vehicle's cooling system, releasing heat and condensing into a high-pressure liquid refrigerant. The high-pressure liquid refrigerant experiences a rapid pressure drop through the temperature control valve 33, becoming a low-temperature, low-pressure mixture of liquid and gas. The low-temperature refrigerant enters the heat exchange section 30, transferring its cooling capacity to the cold storage medium 12 or, through the second heat exchange plate 321, to the air in the cooling channel 23, thereby evaporating into a low-pressure gas and simultaneously lowering the temperature of the cold storage medium 12 and / or the air in the cooling channel 23. The low-pressure gas then flows back to the compressor, repeating the above process to continuously provide a cold source for the novel energy storage heat exchange system of this invention.

[0111] In some embodiments of this invention, the vehicle cooling system 140 also includes other circuits, such as a vehicle air conditioning cooling circuit and a battery cooling circuit. Typically, the cooling circuit includes an evaporator 143; an expansion valve 144 is arranged at one end of the evaporator 143, and the other end of the evaporator 144 may be a solenoid valve expansion valve 145 or a capillary tube 146.

[0112] To improve temperature uniformity within the storage space 120, especially for upright or larger vehicle refrigerators, a cold air intake duct 130 can be installed. This duct draws cooled air from the air outlet duct 22 of the duct system 20 and directs it to the upper area of ​​the storage space 120. Since cold air is denser, its upward flow helps create natural convection, resulting in a more uniform temperature throughout the storage space 120. To save on the effective volume of the storage space 120, the cold air intake duct 130 can be at least partially located between the outer wall of the cabinet 110 and the insulation layer, or directly adjacent to the outer side of the inner liner of the storage space.

[0113] Example 6: Novel Composite Heat Exchange Vehicle Refrigerator

[0114] This embodiment provides a novel composite heat exchange vehicle refrigerator, which integrates the novel composite heat exchange system described in Embodiment 4.

[0115] like Figure 8 and Figure 9As shown, the cold source of the energy storage body 10 in this embodiment is the same as that in embodiment 6, and other aspects are also largely the same. The difference is that the low-pressure gaseous refrigerant flowing from the evaporator 143 in the vehicle air conditioning cooling circuit and the battery cooling circuit converges and then flows back to the compressor 141 through a large-diameter electronic expansion valve 147. Of course, the method in embodiment 6 can also be used. In some optional embodiments of this utility model, the arrangement of this embodiment can also be used in embodiment 5.

[0116] Similar to Embodiment 5, the novel composite heat exchange vehicle refrigerator provided in this embodiment also includes a control system. The control system in this embodiment is essentially the same as the control system in Embodiment 5. The difference lies in that the controller in this embodiment is electrically connected to the semiconductor cooling element 51 and controls the start and stop of the semiconductor cooling element 51 based on the detection results of TC, TS, TX, and even TE. For example, when TS is set to -18°C, or when TC is much higher than TS and the main cooling system is insufficient, the semiconductor cooling element 51 is activated.

[0117] In some embodiments of this invention, a heating film is arranged inside the refrigerator for heating and heat preservation. Simultaneously, by changing the direction of the current, the cold and hot ends of the semiconductor cooling element 51 are altered. At this time, the energy storage body 10 can store heat, and the hot air circulating in the air duct system 20 extends the refrigerator's heat preservation time.

[0118] Example 7: Control method without semiconductor cooling module

[0119] This embodiment describes in detail the control method executed by the control system applied to the novel energy storage vehicle refrigerator 100 described in Embodiment 5. The core of this method lies in using a controller to intelligently coordinate the working states of various components of the novel energy storage heat exchange system (such as the fan 41 of the air guide section 40, the temperature control valve 33 of the heat exchange section 30, and the associated vehicle refrigeration system compressor) based on multiple parameters monitored in real time, so as to achieve efficient cooling, precise temperature control, and energy-saving operation.

[0120] Before explaining the control logic, we must first clarify the key parameters and state definitions involved in this method:

[0121] User-set target temperature TS: The temperature that the user expects the storage space to reach, set by the user through the vehicle refrigerator control panel or related interface.

[0122] Actual temperature TC of the storage space: The temperature value detected in real time by the first temperature sensor installed in the storage space 120.

[0123] Actual temperature TX of the energy storage body: The temperature value detected in real time by the second temperature sensor installed on or inside the energy storage body 10, reflecting the current temperature and cold storage state of the cold storage medium 12.

[0124] Cold storage medium saturation temperature TXb: The characteristic temperature at which the cold storage medium 12 filled in the energy storage body 10 undergoes a solid-liquid phase change (or specific energy absorption / release), which is a known design parameter determined based on the selected material.

[0125] Ambient temperature TE: As an optional setting in some embodiments of this utility model, it is the ambient temperature detected by an ambient temperature sensor installed on the outside of the refrigerator.

[0126] Evaporator fan: Fan 41 in the airflow section 40 is responsible for driving air to circulate between the storage space 120 and the cooling channel 23.

[0127] Electronic expansion valve / temperature control valve: refers to valve 33 (e.g., small-diameter electronic expansion valve) in heat exchange section 30 used to control the flow of cold source. Its opening indicates that the flow of cold source is allowed, and its closing indicates that the flow of cold source is prevented.

[0128] Compressor: Refers to compressor 141 of the vehicle-mounted refrigeration system 140. This control system indirectly controls the start-up, shutdown, and operating speed of the compressor by sending request signals to relevant control units of the vehicle (such as the body control module BCM or air conditioning controller).

[0129] Vehicle Operating Mode 1 (Mode 1): This indicates that the vehicle's current operating state is that the evaporator of the onboard cooling system is working (e.g., cooling the passenger compartment) or the battery cooling system is working. In this mode, the compressor is required to operate and is typically allowed to run at a higher speed (VH) to provide sufficient cooling capacity.

[0130] Vehicle Operating Mode 2 (Mode): This indicates that the vehicle's current operating state is such that neither the onboard air conditioning evaporator nor the battery cooling system is working (e.g., the vehicle is only in accessory power mode, the vehicle is off but the refrigerator is still running, or the air conditioning / battery cooling needs have been met). In this mode, if only the refrigerator compressor is running, it will typically request to operate at a lower speed (VL) to save energy, or it may request to shut down under specific conditions.

[0131] Control cycle t: The time interval between one complete state detection and decision logic execution by the controller, for example, set to 30 seconds. Of course, t can be a calibrated or empirical value.

[0132] Fan start delay t2: The time after the cold source supply is stopped under specific conditions (such as after the refrigerator and cold storage have reached the low temperature target) before the fan 41 is turned on again, for example, it is set to 60 seconds.

[0133] like Figure 10 As shown, the control logic of a system without a secondary cooling unit (semiconductor cooling module) will be described below.

[0134] This control logic is applicable to new energy storage heat exchange systems that only contain a main refrigeration unit (utilizing an air conditioning cold source and a cold storage medium).

[0135] 1. System startup and initialization:

[0136] When the new energy storage vehicle refrigerator 100 is powered on and started, the controller first executes an internal self-test program. After the self-test passes, the system enters the initialization state: the controller ensures that the temperature control valve 33 is in the closed state to prevent the cold source from entering the heat exchange section 30; at the same time, the controller ensures that the fan 41 of the air guide section 40 is in the stopped state.

[0137] 2. Periodic status monitoring and decision-making:

[0138] After initialization, the controller enters the main control loop. It will perform the following operations once every preset control period t (e.g., every 30 seconds):

[0139] Read the value from the first temperature sensor to obtain the current actual temperature TC of the storage space.

[0140] Read the value from the second temperature sensor to obtain the current actual temperature TX of the energy storage body.

[0141] If it needs to work with the compressor, check the vehicle status to determine whether it is currently in working mode 1 or working mode 2.

[0142] The decision is made based on the read temperature value, the user-set target temperature TS, and the known saturation temperature TXb of the cold storage medium.

[0143] 3. Determining and Executing Cooling Needs:

[0144] The controller first determines whether the storage space 120 needs cooling. The determination condition is: TC > first temperature threshold, which is generally TS + ΔT1, for example, TC > TS + 2℃; ΔT1 can be calibrated or used as an empirical value.

[0145] If this condition is met, it indicates that the refrigerator needs emergency cooling. The controller will perform the following actions:

[0146] The temperature control valve 33 is opened, allowing the cold source to flow into the heat exchange section 30.

[0147] The command fan 41 is started, forcing air to flow through the cooling channel 23 for cooling, and sending the cold air into the storage space 120.

[0148] Send a compressor start request signal to the vehicle control unit.

[0149] Further send a compressor speed request according to the current vehicle operating mode: If in Mode 1, request the compressor to operate at a high speed VH; if in Mode 2, request the compressor to operate at a low speed VL.

[0150] After performing the above actions, the process returns to Step 2 (periodic status monitoring) and waits for the next control cycle.

[0151] 4. Judgment and execution for temperature reaching the standard but still needing continued cold storage:

[0152] If in Step 3, TC ≤ the first temperature threshold, for example, TC ≤ TS + 2°C, the controller enters the next judgment branch. The judgment condition is: TC < the second temperature threshold, generally the second temperature threshold is TS - ΔT2, for example, TC < TS - 2°C and TX > the third temperature threshold, generally the third temperature threshold is TXb + ΔT3, for example, TX > TXb + 2°C. ΔT2 and ΔT3 can be calibrated or use empirical values.

[0153] This condition indicates that the temperature of the storage space is low enough, but the cold storage medium has not fully stored cold energy. To prioritize the cold storage task and avoid the storage space from being overcooled, the controller performs the following actions:

[0154] Command Fan 41 to stop to prevent cold air from continuing to blow into the storage space.

[0155] Keep the temperature control valve 33 in the open state (or send a signal to ensure it remains open), allowing the cold source to continue flowing through the heat exchange section 30 to cool and store energy in the cold storage medium 12. At this time, the compressor (if already running) continues to work.

[0156] After performing the above actions, the process returns to Step 2 (periodic status monitoring).

[0157] 5. Judgment and execution for both temperature and cold storage reaching the standard:

[0158] If the condition in Step 4 is not met, the controller enters the final main judgment branch. The judgment condition is: TC < the second temperature threshold, for example, TC < TS - 2°C and TX < the fourth temperature threshold, generally the fourth temperature threshold is TXb – ΔT4, for example, TX < TXb - 2°C. ΔT4 can be calibrated or use empirical values.

[0159] This condition indicates that both the refrigeration and cold storage targets have been achieved. The controller performs the following actions:

[0160] Command the temperature control valve 33 to close to stop the cold source supply.

[0161] Wait for a preset delay time t2 (for example, 60 seconds). This delay may be used for system pressure balance, reducing frequent component switching, or providing time for potential micro defrosting.

[0162] After the delay ends, the command fan 41 is started. The purpose of the fan at this time is to release the cold energy stored in the energy storage body 10 to maintain the low temperature of the storage space, or simply to circulate the air to uniform temperature.

[0163] In some embodiments of this invention, optional compressor coordination is implemented: The vehicle operating mode is checked; if it is currently in mode 2, the controller sends a compressor stop request signal to the vehicle control unit to save energy. If it is in mode 1, no stop signal is sent because the compressor may be serving other systems.

[0164] After the above actions are completed, the process returns to step 2 (periodic status monitoring).

[0165] Other situations:

[0166] If the main judgment conditions in steps 3, 4, and 5 above are not met (e.g., TC hovers within the range of TS±2℃, or TX is within the range of TXb±2℃), the controller does not perform any special active control actions, but only maintains the current state (e.g., if the fan is running, it continues to run; if the valve is closed, it remains closed), and then directly returns to step 2 to wait for the status monitoring and decision of the next cycle.

[0167] Example 8: Control method with semiconductor cooling module

[0168] like Figure 11 As shown, this embodiment describes in detail the control method executed by the control system applied to the novel composite heat exchange vehicle refrigerator described in Embodiment 6. The core of this method lies in using a controller to intelligently coordinate the working states of various components of the novel composite heat exchange system (such as the fan 41 of the air guide section 40, the temperature control valve 33 of the heat exchange section 30, the semiconductor refrigeration element 51 of the secondary refrigeration section 50, and the associated vehicle refrigeration system compressor) based on multiple parameters monitored in real time, so as to achieve efficient cooling, precise temperature control, and energy-saving operation.

[0169] Compared with Embodiment 7, the key parameters and state definitions involved in this embodiment have been increased as follows:

[0170] Semiconductor cooling module (TEC): refers to the semiconductor cooling component 51 in the secondary cooling section 50.

[0171] This control logic is applicable to novel composite heat exchange systems that simultaneously include a main refrigeration unit and a secondary refrigeration unit (TEC). It adds control over the semiconductor cooling element 51 to the logic of Embodiment 7.

[0172] 1. System startup and initialization:

[0173] Logically similar to Embodiment 7, but during initialization, in addition to closing valve 33 and fan 41, the controller also ensures that the semiconductor refrigeration component 51 is in a power-off (closed) state.

[0174] 2. Periodic status monitoring and decision-making:

[0175] Logically similar to Embodiment 7, but when reading sensor data, if an ambient temperature sensor is equipped, the value TE of the ambient temperature sensor will also be read.

[0176] 3. Refrigeration demand judgment and execution:

[0177] The determination condition is the same as in Logic 1: TC > the first temperature threshold. Generally, the first temperature threshold is TS + ΔT1. For example, TC > TS + 2°C; ΔT1 can be calibrated or an empirical value can be used.

[0178] If this condition is met, it indicates that strong refrigeration is required. The controller performs the following actions:

[0179] Command the temperature control valve 33 to open.

[0180] Command the fan 41 to start.

[0181] Command the semiconductor refrigeration component 51 to start working to provide additional secondary cooling capacity.

[0182] Send a compressor start-up and speed request signal (judging VH / VL based on Mode 1 / Mode 2), the same as in Embodiment 7.

[0183] The process returns to Step 2.

[0184] 4. Judgment and execution for temperature reaching the standard but continuing to store cold:

[0185] The determination condition is the same as in the logic of Embodiment 7: TC < the second temperature threshold. Generally, the second temperature threshold is TS - ΔT2. For example, TC < TS - 2°C and TX > the third temperature threshold. Generally, the third temperature threshold is TXb + ΔT3. For example, TX > TXb + 2°C. ΔT2 and ΔT3 can be calibrated or an empirical value can be used.

[0186] The temperature of the storage space has reached the standard, and cold storage needs to be prioritized. The controller performs the following actions:

[0187] Command the fan 41 to stop.

[0188] Command the semiconductor refrigeration component 51 to stop working because secondary refrigeration is not required at this time.

[0189] Keep the temperature control valve 33 in the open state and continue cold storage.

[0190] The process returns to Step 2.

[0191] 5. Temperature and Cold Storage Compliance Judgment and Execution:

[0192] The determination conditions are the same as the logic in Embodiment 7: TC < the second temperature threshold. For example, TC < TS - 2°C and TX < the fourth temperature threshold. Generally, the fourth temperature threshold is TXb - ΔT3. For example, TX < TXb - 2°C. ΔT4 can be calibrated or an empirical value can be used.

[0193] Both refrigeration and cold storage are sufficient. The controller executes the following action sequence:

[0194] Command the temperature control valve 33 to close and stop the cold source supply of the main refrigeration unit.

[0195] Check the ambient temperature TE. If TE > the preset ambient temperature, for example, 38°C (i.e., the ambient temperature is very high), then command the thermoelectric cooler 51 to start working. This is to use the TEC to help maintain the low temperature and counteract the external heat penetration in an extremely high-temperature environment. Otherwise (i.e., TE ≤ the preset ambient temperature, for example, 38°C), then command the thermoelectric cooler 51 to stop working (or remain in the stopped state).

[0196] Wait for the preset delay time t2, for example, 60 seconds. Of course, t2 can be calibrated or an empirical value can be used.

[0197] After the delay ends, command the fan 41 to start (using the cold stored or generated by the TEC to maintain the low temperature).

[0198] In some embodiments of the present utility model, optional compressor cooperation: Check the vehicle working mode: If in Mode 2, send a compressor shutdown request signal.

[0199] The process returns to Step 2.

[0200] 6. Other Situations:

[0201] Following the same logic as in Embodiment 7, if the specific conditions in Steps 3, 4, and 5 are not met, maintain the current situation and return to Step 2 to wait for the next monitoring.

[0202] Through the above detailed control logic, the control system of the present utility model can intelligently and flexibly schedule the operation of the main refrigeration system (air-conditioning refrigerant + cold storage) and the secondary refrigeration system (TEC) according to the real-time changing internal temperature, cold storage state, environmental conditions, and vehicle state, as well as coordinate the interaction with the vehicle compressor. Thus, on the premise of ensuring the refrigeration effect, it can achieve the optimal utilization of energy and meet the user's requirements for precise temperature control and long-term cold preservation. This method has a higher level of intelligence and energy efficiency performance compared to simple on-off control.

[0203] Embodiment 9: Electronic Device

[0204] This invention also provides an electronic device, such as a controller integrated inside a vehicle refrigerator. The electronic device includes a processor (such as an MCU) and a memory (such as Flash or RAM). The memory stores a computer program (firmware). When the processor executes the computer program, it can implement any of the control methods described in embodiments 7 or 8 above. For example, the processor receives signals from various sensors and, according to the logic set in the program (such as...),... Figure 10 or Figure 11 The system makes a judgment (as shown in the process) and outputs a control signal to the fan 41, temperature control valve 33, optional semiconductor refrigeration component 51, and vehicle compressor control unit.

[0205] The processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0206] The memory may include random access memory (RAM) or non-volatile memory (NVM), such as at least one disk storage device.

[0207] Memory can be volatile memory, such as random-access memory (RAM); memory can also be non-volatile memory, such as read-only memory, flash memory, hard disk drive (HDD), or solid-state drive (SSD); or memory can be any other medium capable of carrying or storing desired program code in the form of instructions or data structures, accessible by a computer, but is not limited thereto. Memory can be a combination of the above-mentioned types of memory.

[0208] Example 10: Storage Medium

[0209] This invention provides a computer-readable storage medium, such as a non-volatile memory chip (Flash Memory), an SD card, or a USB flash drive. The computer-readable storage medium stores a computer program, which, when loaded and executed by a corresponding processor (e.g., the controller of a vehicle refrigerator or a general-purpose computer), can implement any of the control methods described in embodiments 7 or 8 above. This storage medium can be used to manufacture or update the control software of a vehicle refrigerator.

[0210] This invention can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented in whole or in part as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this invention are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid state disk (SSD)).

[0211] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0212] 1. High-efficiency heat exchange and cold storage: Through a carefully designed cooling channel, a first heat exchange structure (including heat exchange plates and cold source channel), and an optional second heat exchange structure, the cold energy of the cold source is efficiently transferred to the cold storage medium and air, thereby improving the cold storage speed and refrigeration efficiency.

[0213] 2. Extended offline cooling time: By utilizing the cold energy stored in the cold storage medium, the vehicle can still cool the air through the cooling channel after the vehicle is turned off or the air conditioner is turned off, which significantly extends the effective cooling time of the vehicle refrigerator.

[0214] 3. Enhanced cooling capacity: The optional secondary cooling unit (semiconductor cooling component) can provide additional cooling capacity when needed, achieving lower cooling temperatures (such as freezing at -18°C) to meet diverse user needs.

[0215] 4. Intelligent control and energy saving: By integrating temperature sensors and controllers and adopting refined control logic, the system can intelligently control the working status of the fan, temperature control valve, secondary refrigeration components and compressor based on various factors such as refrigerator temperature, cold storage status, set temperature, vehicle operating mode and even ambient temperature. This achieves on-demand cooling and cold storage, optimizes energy utilization and achieves energy saving.

[0216] 5. High system integration: It integrates cold storage, heat exchange, air ducts, etc. into a compact module, which is convenient for installation and layout in vehicles or on-board refrigerators or other equipment.

[0217] 6. Improve temperature uniformity inside the refrigerator: The optional cold air intake duct design helps optimize the distribution of cold air inside the refrigerator and improve temperature uniformity.

[0218] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, various modifications and variations can be made to this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within its protection scope. For example, the shape of the energy storage body, the number and arrangement of cooling channels, the specific structure of the heat exchange plates, the type and installation location of sensors, and the specific thresholds and time parameters in the control logic can all be adjusted and optimized under the basic principles of this utility model.

Claims

1. A novel energy-storage vehicle-mounted refrigerator, characterized in that, include: The box body defines the storage space; A novel energy storage heat exchange system is installed on the housing, and the air inlet and outlet of its air duct system are both connected to the storage space. A control system, wherein the control system is used to control the operating status of the novel energy storage heat exchange system; The novel energy storage heat exchange system includes: An energy storage body for absorbing and storing cold energy transferred from an on-board refrigeration system; the energy storage body includes a shell having an internal containment space and a cold storage medium filled in the internal containment space; The air duct system includes: an air inlet duct having at least one air inlet for air to enter; an air outlet duct having at least one air outlet for air to exit; and a cooling duct that penetrates the internal housing space of the energy storage body and is sealed to the energy storage body, wherein the two ends of the cooling duct are respectively connected to the air inlet duct and the air outlet duct. A heat exchange section is connected to the refrigerant of the vehicle-mounted refrigeration system; the heat exchange section includes a first heat exchange structure that is in contact with the cold storage medium. An air guide section is used to drive air to flow sequentially through the air inlet channel, the cooling channel, and the air outlet channel; When the refrigerant is introduced into the first heat exchange structure, the first heat exchange structure is adapted to cool the cold storage medium to store cold energy, and / or directly cool the air flowing through the cooling channel; and the air flowing through the cooling channel is adapted to exchange heat with the cold storage medium and / or the first heat exchange structure and be cooled, and the cooled air is sent out from the air outlet channel.

2. The novel energy-storage vehicle-mounted refrigerator according to claim 1, characterized in that: The vehicle refrigerator also includes a cold air intake duct; the cold air intake duct guides the cooled air from the air outlet of the duct system to the upper area of ​​the storage space and sends it out; the cold air intake duct is at least partially arranged on the outer wall of the cabinet.

3. The novel energy-storage vehicle-mounted refrigerator according to claim 1, characterized in that: The cooling channel includes at least one air duct; the outer wall of the air duct is in direct contact with the cold storage medium and / or the first heat exchange structure.

4. The novel energy-storage vehicle-mounted refrigerator according to claim 1 or 3, characterized in that: The first heat exchange structure includes at least one first heat exchange plate for increasing the heat exchange area between the refrigerant and the cold storage medium, and at least one cold source channel for the refrigerant to circulate; the cold source channel is at least partially immersed in the cold storage medium.

5. The novel energy-storage vehicle-mounted refrigerator according to claim 4, characterized in that: The first heat exchange plate is connected to the outer wall of the cooling channel.

6. The novel energy-storage vehicle-mounted refrigerator according to claim 5, characterized in that: The cold source channel is connected to the outer wall of the first heat exchange plate and / or the cooling channel.

7. The novel energy-storage vehicle-mounted refrigerator according to claim 1, 2, 5, or 6, characterized in that: The cooling channel includes at least one air duct; the heat exchange section is further provided with a second heat exchange structure located inside the air duct, the second heat exchange structure including at least one second heat exchange plate for increasing the heat exchange area between the air flowing through the air duct and the refrigerant.

8. The novel energy-storage vehicle-mounted refrigerator according to claim 7, characterized in that: The second heat exchange plate is connected to the inner wall of the air duct.

9. The novel energy-storage vehicle-mounted refrigerator according to any one of claims 1, 2, 5, 6, or 8, characterized in that: The heat exchange section also includes a temperature control valve, which is installed on the pipeline that introduces the refrigerant into the heat exchange section and is used to adjust the flow rate of the refrigerant flowing into the heat exchange section according to the temperature of the energy storage body.

10. The novel energy-storage vehicle-mounted refrigerator according to claim 1, 2, 5, 6, or 8, characterized in that: The air guide includes a fan; at least one of the following locations is provided: between the air inlet channel and the cooling channel, between the air outlet channel and the cooling channel, at the air inlet, at the air outlet, and inside the cooling channel.

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