Mobile cold storage with cold accumulation structure

Abstract

The utility model relates to mobile cold storage technical field, concretely is a kind of mobile cold storage with cold storage structure, including mobile cold storage, is provided with cold storage mechanism on the mobile cold storage, the cold storage mechanism includes: cold storage plate, the cavity is set up on the inner wall of cold storage plate, the inner wall cavity of cold storage plate is provided with phase-change cold storage agent, for accumulation cold capacity, the bottom of cold storage plate is connected with input block and output block, the communication pipe is connected between input block and output block, one end of the communication pipe is fixedly connected on input block, the other end of the communication pipe is fixedly connected on output block. The utility model is provided with cold storage mechanism, utilizes the phase-change cold storage agent of the inner wall cavity of cold storage plate to absorb cold capacity and solidify and store cold when refrigeration system operates, release latent heat when system stops or environmental temperature rises, realize the storage and release of cold capacity, effectively prolong the low-temperature maintenance time, ensure the stability of cold storage internal temperature.

Description

Technical Field

[0001] This utility model relates to the field of mobile cold storage technology, specifically a mobile cold storage with a cold storage structure. Background Technology

[0002] Currently, mobile cold storage facilities, as low-temperature storage equipment that facilitates the transportation and temporary storage of goods, are widely used in cold chain logistics, fresh food distribution, and vaccine and pharmaceutical transportation. Existing mobile cold storage facilities mainly rely on their own refrigeration systems to provide cooling capacity, which can maintain a low-temperature environment inside the storage facility when the refrigeration system is operating normally.

[0003] However, during transportation or use, if the refrigeration system malfunctions, there is insufficient power supply, or the equipment stops operating, the temperature inside the warehouse will rise rapidly, causing the quality of refrigerated goods to decline or even spoil.

[0004] In view of this, we propose a mobile cold storage with a cold storage structure. Summary of the Invention

[0005] The purpose of this utility model is to provide a mobile cold storage with a cold storage structure. This mobile cold storage with a cold storage structure solves the problems of existing mobile cold storage lacking cold storage function when the refrigeration system stops or the power supply is insufficient, having a short low temperature maintenance time, and being unable to guarantee the stability of the temperature inside the storage.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mobile cold storage unit with a cold storage structure includes a mobile cold storage unit and a cold storage mechanism. The cold storage mechanism includes: a cold storage plate with a cavity on its inner wall, containing a phase change cold storage agent for accumulating cold energy; an input block and an output block connected to the bottom of the cold storage plate, connected by a connecting pipe; one end of the connecting pipe fixedly connected to the input block and the other end fixedly connected to the output block, the connecting pipe located within the cavity of the cold storage plate; both the input and output blocks are hollow and have through holes at their bottoms; an input pipe connected to the through hole at the bottom of the input block, a drive motor fixedly connected to the inner wall of the input pipe, a main shaft fixedly connected to the output shaft of the drive motor, and fan blades fixedly connected to the outer wall of the main shaft; and a dustproof mechanism for filtering the air entering the input pipe.

[0008] Preferably, the dustproof mechanism includes a filter screen, which is fixedly connected to the inner wall of the input pipe. A hollow column is fixedly connected to the main shaft. Lightweight rods are symmetrically slidably arranged on the inner wall of the hollow column. A return spring is connected between the lightweight rods and the inner wall of the hollow column. A semi-circular plate is fixedly connected to the end of the lightweight rods away from the return spring.

[0009] Preferably, one end of the return spring is fixedly connected to the lightweight rod, and the other end of the return spring is fixedly connected to the inner wall of the hollow column.

[0010] Preferably, the surface of the mobile cold storage is provided with aerogel, and the surface of the aerogel is provided with a multifunctional reflective coating.

[0011] Preferably, the input block and the output block are fixedly connected to the cold storage plate through a sealed connection structure, and the connecting pipe is corrugated in the cavity of the cold storage plate to increase the heat exchange area with the phase change cold storage agent.

[0012] Preferably, the drive motor is connected to the main shaft via a coupling, and the main shaft is rotatably connected to the middle of the inner wall filter screen.

[0013] Preferably, the cold storage mechanism is located at the top of the inner wall of the mobile cold storage, and multiple connecting pipes are provided.

[0014] By employing the above technical solution, this utility model provides a mobile cold storage unit with a cold storage structure. It possesses at least the following beneficial effects:

[0015] 1. This utility model incorporates a cold storage mechanism, which utilizes the phase change refrigerant in the cavity of the cold storage plate to absorb and solidify cold energy during the operation of the refrigeration system. When the system stops or the ambient temperature rises, the refrigerant releases latent heat, thereby achieving the storage and release of cold energy. This effectively extends the low-temperature maintenance time and ensures the stability of the internal temperature of the cold storage.

[0016] 2. This utility model incorporates a dustproof mechanism. The filter screen filters the air drawn in through the input pipe, preventing dust and impurities from entering the cold storage. Simultaneously, the centrifugal force-driven semi-circular plate, in conjunction with the return spring, enables automatic opening and closing. When the motor stops, a seal is formed, reducing heat exchange and further improving the insulation effect and low-temperature retention time of the cold storage. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the cross-section of the mobile cold storage of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the cold storage plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-section of the cold storage plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the input block of this utility model;

[0023] Figure 6 This is a schematic diagram of the cross-section of the input block of this utility model;

[0024] Figure 7 This is a schematic diagram of the cross-section of the input pipe of this utility model;

[0025] Figure 8 This is a schematic diagram of the hollow column structure of this utility model;

[0026] Figure 9 This is a structural schematic diagram of the cross-section of the hollow column of this utility model.

[0027] In the diagram: 1. Mobile cold storage; 2. Cold storage mechanism; 21. Cold storage plate; 22. Input block; 23. Output block; 24. Connecting pipe; 25. Input pipe; 26. Drive motor; 27. Main shaft; 28. Fan blade; 3. Dustproof mechanism; 31. Filter screen; 32. Hollow column; 33. Lightweight rod; 34. Return spring; 35. Semi-circular plate. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1 - Figure 9As shown, this utility model provides a technical solution: a mobile cold storage with a cold storage structure, including a mobile cold storage 1, a cold storage mechanism 2 installed on the mobile cold storage 1, and a cold storage plate 21. The cold storage mechanism 2 includes a cold storage plate 21, with a cavity formed on the inner wall of the cold storage plate 21. The cavity on the inner wall of the cold storage plate 21 is filled with a phase change cold storage agent for accumulating cold energy. When the refrigeration system of the mobile cold storage 1 is running, the phase change cold storage agent in the cavity on the inner wall of the cold storage plate 21 absorbs cold energy and undergoes a solidification phase change, storing the cold energy as latent heat. When the refrigeration system stops working or the external ambient temperature rises, the phase change cold storage agent undergoes a melting phase change, releasing the cold energy. The latent heat of phase change stored in the cold storage plate 21 is used to achieve stable temperature control within the storage chamber and extend the low-temperature maintenance time. An input block 22 and an output block 23 are connected to the bottom of the cold storage plate 21. A connecting pipe 24 connects the input block 22 and the output block 23. One end of the connecting pipe 24 is fixedly connected to the input block 22, and the other end is fixedly connected to the output block 23. The connecting pipe 24 is located within the cavity of the cold storage plate 21. Both the input block 22 and the output block 23 are hollow, and both have through holes at their bottoms. The phase change refrigerant within the cavity of the inner wall of the cold storage plate 21 is stored through the latent heat of phase change. The storage and release of cold energy occurs as follows: When the mobile cold storage refrigeration system is running, a flow path is formed through the connecting pipe 24 located within the cavity of the cold storage plate 21 and connected to the input block 22 and the output block 23 at both ends. The fluid exchanges heat with the phase change refrigerant, causing it to solidify and store cold energy. The fluid then flows back to the refrigeration system via the output block 23. When the refrigeration system stops or the ambient temperature rises, the phase change refrigerant melts and releases heat. The cold-carrying fluid in the connecting pipe 24 absorbs the cold energy and is then discharged through the output block 23. This circulation path achieves stable temperature control within the storage facility, extending the low-temperature maintenance time. The input pipe 25 is connected to the bottom through-hole of the input block 22. 25. A drive motor 26 is fixedly connected to the inner wall of the input pipe 25. The output shaft of the drive motor 26 is fixedly connected to the main shaft 27. A fan blade 28 is fixedly connected to the outer wall of the main shaft 27. The drive motor 26 is fixed to the inner wall of the input pipe 25. The output shaft of the drive motor 26 drives the main shaft 27 and the fan blade 28 to rotate at high speed, forming a forced convection driving force: Cold storage stage: When the refrigeration system is running, the rotation of the fan blade 28 accelerates the flow rate of the low-temperature cold fluid from the input pipe 25 into the input block 22, enhances the heat exchange efficiency between the fluid in the connecting pipe 24 and the phase change cold storage agent, and promotes the rapid solidification and cold storage of the phase change cold storage agent. Cooling stage: After the phase change refrigerant melts and releases heat, the cooling fluid in the connecting pipe 24 absorbs the cold energy and is discharged through the output block 23. At this time, the airflow generated by the rotation of the fan blade 28 directly acts on the cooling fluid, accelerating its diffusion inside the cold storage. At the same time, a circulating suction force is formed through the bottom hole of the input pipe 25, pushing the fluid back to the connecting pipe 24, realizing the continuous transfer and uniform distribution of cold energy. A dustproof mechanism 3 is provided on the input pipe 25, which is used to filter the air entering the input pipe 25.

[0030] The dustproof mechanism 3 includes a filter screen 31, which is fixedly connected to the inner wall of the input pipe 25. A hollow column 32 is fixedly connected to the main shaft 27. Lightweight rods 33 are symmetrically slidably arranged on the inner wall of the hollow column 32. A return spring 34 connects the lightweight rods 33 to the inner wall of the hollow column 32. A semi-circular plate 35 is fixedly connected to the end of the lightweight rods 33 away from the return spring 34. The filter screen 31 is fixed to the inner wall of the input pipe 25, directly intercepting dust and impurities in the air and preventing them from entering the subsequent flow path. When the hollow column 32 rotates with the main shaft 27, the symmetrically arranged lightweight rods 33 overcome the tension of the return spring 34 due to centrifugal force and slide outward along the inner wall of the hollow column 32, causing the semi-circular plate 35 to move away relatively, allowing the filter screen 31 to be leaked out. When the drive motor 26 stops running, the centrifugal force disappears, the return spring 34 pulls the lightweight rod 33 to reset, and the semi-arc plate 35 returns to its original position, blocking the filter screen 31. The blocked state can reduce the heat exchange between the external environment and the inside of the input pipe 25, help maintain the low temperature state of the phase change refrigerant in the cavity of the cold storage plate 21, and indirectly extend the overall low temperature maintenance time of the cold storage.

[0031] One end of the return spring 34 is fixedly connected to the lightweight rod 33, and the other end of the return spring 34 is fixedly connected to the inner wall of the hollow column 32. The surface of the mobile cold storage 1 is covered with aerogel, and the surface of the aerogel is covered with a multifunctional reflective paint. The input block 22 and the output block 23 are fixedly connected to the cold storage plate 21 through a sealed connection structure. The connecting pipe 24 is corrugated in the cavity of the cold storage plate 21 to increase the heat exchange area with the phase change cold storage agent. The drive motor 26 is connected to the main shaft 27 through a coupling. The main shaft 27 is rotatably connected to the middle of the inner wall filter screen 31. The cold storage mechanism 2 is located at the top of the inner wall of the mobile cold storage 1, and multiple connecting pipes 24 are provided.

[0032] In use, the mobile cold storage unit 1 with a cold storage structure of this utility model operates as follows: First, the refrigeration system is activated. The refrigeration system sends a low-temperature cooling fluid into the input block 22 via the input pipe 25. The drive motor 26 rotates the main shaft 27 and fan blades 28 at high speed, creating forced convection. This causes the cooling fluid to flow rapidly through the input block 22, the connecting pipe 24, and the output block 23. Inside the connecting pipe 24, the cooling fluid exchanges heat with the phase change refrigerant in the cavity of the cold storage plate 21. The phase change refrigerant absorbs the cold energy and undergoes a solidification phase change, storing the cold energy as latent heat. The cooling fluid then flows back to the refrigeration system via the output block 23, forming a cycle. When the refrigeration system stops working or the external ambient temperature rises, the phase change refrigerant in the cavity of the cold storage plate 21 gradually melts from its solidified state, releasing the previously stored latent heat of phase change. The fluid in the connecting pipe 24 absorbs this latent heat. After being measured, the fluid is discharged from the output block 23 and rapidly diffused into the cold storage under the airflow of the fan blades 28. At the same time, the bottom through hole of the input pipe 25 generates a circulating suction force, which drives the fluid to flow back to the connecting pipe 24, thereby realizing the continuous transfer and uniform distribution of cold energy and ensuring the stable maintenance of the internal temperature of the cold storage. During operation, the dustproof mechanism 3 filters the air drawn in by the input pipe 25. The filter screen 31 can block dust and impurities from entering. When the main shaft 27 rotates at high speed, the hollow column 32 drives the lightweight rod 33 to slide under the action of centrifugal force, so that the semi-arc plate 35 moves away from the filter screen 31, realizing ventilation. When the drive motor 26 stops running, the return spring 34 drives the lightweight rod 33 and the semi-arc plate 35 to reset and block the filter screen 31, reducing the heat exchange between the input pipe 25 and the outside world, thereby helping to extend the low temperature holding time of the phase change refrigerant, and finally realizing the efficient cold storage and cold release functions of the cold storage under different working conditions.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile cold storage unit with a cold storage structure, comprising a mobile cold storage unit (1), characterized in that: The mobile cold storage (1) is equipped with a cold storage mechanism (2), which includes: A cold storage plate (21) has a cavity on its inner wall. The cavity on the inner wall of the cold storage plate (21) is filled with a phase change cold storage agent for storing cold energy. An input block (22) and an output block (23) are connected to the bottom of the cold storage plate (21). A connecting pipe (24) is connected between the input block (22) and the output block (23). One end of the connecting pipe (24) is fixedly connected to the input block (22), and the other end of the connecting pipe (24) is fixedly connected to the output block (23). The connecting pipe (24) is located in the cavity of the cold storage plate (21). Both the input block (22) and the output block (23) are hollow, and both the bottom of the input block (22) and the output block (23) are provided with through holes. Input tube (25), the bottom through hole of the input block (22) is connected to the input tube (25), the inner wall of the input tube (25) is fixedly connected to the drive motor (26), the output shaft of the drive motor (26) is fixedly connected to the main shaft (27), and the outer wall of the main shaft (27) is fixedly connected to the fan blade (28). The input pipe (25) is provided with a dustproof mechanism (3), which is used to filter the air entering the input pipe (25).

2. A mobile cold storage unit with a cold storage structure according to claim 1, characterized in that: The dustproof mechanism (3) includes a filter screen (31), which is fixedly connected to the inner wall of the input pipe (25). A hollow column (32) is fixedly connected to the main shaft (27). Lightweight rods (33) are symmetrically slidably arranged on the inner wall of the hollow column (32). A return spring (34) is connected between the lightweight rod (33) and the inner wall of the hollow column (32). A semi-arc plate (35) is fixedly connected to the end of the lightweight rod (33) away from the return spring (34).

3. A mobile cold storage unit with a cold storage structure according to claim 2, characterized in that: One end of the return spring (34) is fixedly connected to the lightweight rod (33), and the other end of the return spring (34) is fixedly connected to the inner wall of the hollow column (32).

4. A mobile cold storage unit with a cold storage structure according to claim 2, characterized in that: The surface of the mobile cold storage (1) is provided with aerogel, and the surface of the aerogel is provided with a multifunctional reflective coating.

5. A mobile cold storage unit with a cold storage structure according to claim 2, characterized in that: The input block (22) and the output block (23) are fixedly connected to the cold storage plate (21) through a sealed connection structure. The connecting pipe (24) is corrugated in the cavity of the cold storage plate (21) to increase the heat exchange area with the phase change cold storage agent.

6. A mobile cold storage unit with a cold storage structure according to claim 2, characterized in that: The drive motor (26) is connected to the main shaft (27) via a coupling, and the main shaft (27) is rotatably connected to the middle of the inner wall filter screen (31).

7. A mobile cold storage unit with a cold storage structure according to claim 2, characterized in that: The cold storage mechanism (2) is located on the top of the inner wall of the mobile cold storage (1), and several connecting pipes (24) are provided.

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