A phase change cold storage module and cold storage shelf for cold storage

Abstract

The utility model discloses a kind of phase-change cold storage module and cold storage shelf for cold store, phase-change cold storage module includes two fixed rods of parallel arrangement and the several phase-change cold storage boxes of being threaded in two fixed rods, and the end of two fixed rods is connected by connecting rod. Phase-change cold storage box includes cold storage box body and phase-change cold storage material filled in the inside of cold storage box body, and cold storage box body is flat cuboid structure, and it has two mutually parallel rectangular main planes and four rectangular side vertical planes connected main plane. Cold storage box body has two hang holes through main plane and with its internal chamber insulation, two main planes of cold storage box body are respectively provided with two protruding support head, and two support heads are located between two hang holes. The utility model adds protruding support head on two side main planes of cold storage box, when multiple cold storage boxes are hung side by side, corresponding support head on adjacent box body will abut each other, like built-in "stopper", and it is automatically and reliably formed even air gap between box body.

Description

Technical Field

[0001] This utility model relates to the field of cold storage equipment technology, specifically to a phase change cold storage module and cold storage rack for cold storage. Background Technology

[0002] Cold storage facilities, as specialized low-temperature warehousing facilities, primarily function to provide a precise and stable low-temperature environment for perishable goods such as food and pharmaceuticals. The operation of cold storage facilities requires consideration of both fluctuating electricity loads and constant temperature. High-load operation of refrigeration units during peak electricity price periods leads to a surge in energy costs, while temperature fluctuations during nighttime shutdowns can easily cause spoilage of goods. Phase change energy storage box technology addresses these issues through a synergistic mechanism of "off-peak electricity storage + peak electricity release." During off-peak electricity periods at night, the refrigeration units operate efficiently, storing cold energy in the phase change material within the storage box. During peak daytime electricity prices or unit malfunctions, the phase change material melts and releases cold energy, continuously supplying cold energy into the storage facility.

[0003] In some applications, multiple cold storage boxes need to be assembled into a cold storage module by connecting them on a series rod to meet different capacity requirements. In this case, in order to ensure that a uniform gap is formed between the cold storage boxes (to compensate for cold contraction and deformation and to provide airflow channels), the existing common method is to insert an isolation tube (such as a short nylon or metal tube) between adjacent cold storage boxes, such as the cold storage box module in Reference 1.

[0004] Reference 1: Chinese patent document with publication number CN219624298U.

[0005] Reference 1 describes a tube rack type cold storage module and cold storage rack, comprising: a plurality of cold storage boxes, the plurality of cold storage boxes being spaced apart along a first direction; each of the cold storage boxes being filled with a phase change material, and each of the cold storage boxes being provided with a fixing hole; a fixed main pipe, the fixed main pipe being inserted through the fixing hole of each of the cold storage boxes; a plurality of fixed secondary pipes, the plurality of fixed secondary pipes being sleeved on the fixed main pipe, and the opposite ends of each of the fixed secondary pipes abutting against two adjacent cold storage boxes; and a limiting pipe, the limiting pipe being inserted through the fixed main pipe and abutting against the outermost cold storage box among the plurality of cold storage boxes.

[0006] In practice, the steps of "inserting the cold storage box" and "attaching the isolation tube" must be repeatedly and alternately performed until the entire module assembly is completed. However, the above method has significant drawbacks: firstly, the assembly process is extremely cumbersome and time-consuming; secondly, it consumes a large number of isolation tubes, resulting in high auxiliary material costs. Utility Model Content

[0007] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a phase change cold storage module and cold storage rack for cold storage.

[0008] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a phase change cold storage module for cold storage, comprising two parallel fixed rods and several phase change cold storage boxes passing through the two fixed rods, wherein the ends of the two fixed rods are connected by a connecting rod.

[0009] The phase change cold storage box includes a cold storage box body and a phase change cold storage material filled inside the cold storage box body. The cold storage box body is a flat cuboid structure with two parallel rectangular main planes and four rectangular side faces connecting the main planes.

[0010] The cold storage box body has two hanging holes that penetrate the main plane and are isolated from its internal chamber. Two protruding support heads are respectively provided on the two main planes of the cold storage box body, and the two support heads are located between the two hanging holes.

[0011] As a further optimization of the phase change cold storage module for cold storage of this utility model: two clearance grooves are respectively provided on the two main planes of the cold storage box body, and the two clearance grooves are located between the two support heads.

[0012] As a further optimization of the phase change cold storage module for cold storage of this utility model: a recess is provided on one of the smaller side surfaces of the cold storage box body, and a filling port is provided in the recess.

[0013] As a further optimization of the phase change cold storage module for cold storage of this utility model: the support head is a frustum-shaped structure.

[0014] As a further optimization of the phase change cold storage module for cold storage of this utility model: the hanging hole on the cold storage box body is a circular through hole, and the diameter of the hanging hole is larger than the diameter of the bottom surface of the support head.

[0015] As a further optimization of the phase change cold storage module for cold storage of this utility model: the center points of the hanging hole, the support head and the clearance groove are located in the same plane, and the plane is perpendicular to the main plane of the cold storage box body and parallel to the long side elevation of the cold storage box body. The distance between the two support heads is L1, and the distance between one of the clearance grooves and the hanging hole away from the clearance groove is L2. L1 and L2 are equal.

[0016] As a further optimization of the phase change cold storage module for cold storage of this utility model: the support head and the cold storage box body are integrally formed.

[0017] As a further optimization of the phase change cold storage module for cold storage of this utility model: the main plane of the cold storage box body is provided with an installation groove, the installation groove has an internal thread, and the lower part of the support head can be screwed into the installation groove.

[0018] As a further optimization of the phase change cold storage module for cold storage of this utility model: multiple "capsule-shaped" grooves are also provided on the main plane of the cold storage box body.

[0019] This utility model also provides a cold storage rack, including a rack body and the aforementioned phase change cold storage module, wherein the phase change cold storage module is installed on the top of the rack body and / or between the crossbeams of the rack body.

[0020] The present invention has the following beneficial effects: The cold storage box of the present invention has raised support heads on both sides of the main plane. When multiple cold storage boxes are suspended side by side, the corresponding support heads on the adjacent boxes will abut against each other, just like the built-in "limiters", automatically and reliably forming a uniform air gap between the boxes. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the phase change cold storage module of this utility model;

[0022] Figure 2 This is a top view of the phase change cold storage module of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the cold storage box body of this utility model;

[0024] Figure 4 This is a side view of the cold storage box body of this utility model.

[0025] Figure 5 This is a schematic diagram showing the stacking state of the phase change cold storage box of this utility model;

[0026] Marked in the image:

[0027] 1. Fixing rod;

[0028] 2. Phase change cold storage box;

[0029] 201. Cold storage box body;

[0030] 202. Hanging hole;

[0031] 203. Support head;

[0032] 204. Clearance groove;

[0033] 205. Filling port;

[0034] 206. Groove

[0035] 3. Connecting rod. Detailed Implementation

[0036] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0037] <Phase Change Cooling Module>

[0038] As shown in the figure: A phase change cold storage module for cold storage includes two parallel fixed rods 1 and several phase change cold storage boxes 2 passing through the two fixed rods 1. The ends of the two fixed rods 1 are connected by a connecting rod 3.

[0039] The phase change energy storage module includes an energy storage box body 201 and a phase change energy storage material filled inside the energy storage box body 201. It utilizes the high latent heat phase change material (PCM) encapsulated inside to absorb or release a large amount of heat when it undergoes a phase change (usually a solid-liquid transition) at a specific temperature.

[0040] The cold storage box body 201 has a flat rectangular parallelepiped structure with two parallel rectangular main planes and four rectangular side faces connecting the main planes. This flat rectangular parallelepiped structure provides a large effective heat exchange surface area, ensuring rapid and uniform heat transfer of the phase change material during the charging (solidification heat release) and releasing (melting heat absorption) processes. The cold storage box body 201 has two hanging holes 202 that penetrate the main planes and isolate them from the internal chambers, facilitating flexible and stable suspension of the cold storage box within the cold storage space and effectively utilizing the three-dimensional space.

[0041] Two protruding support heads 203, each with a frustum-shaped structure, are respectively provided on the two main planes of the cold storage box body 201. The two support heads 203 are located between two hanging holes 202. The support heads 203 can have two specific structural forms: first, the support head 203 is integrally formed with the cold storage box body 201; second, the support head 203 is detachably connected to the cold storage box body 201. Specifically, a mounting groove with internal threads is provided on the main plane of the cold storage box body 201, allowing the lower part of the support head 203 to be screwed into the mounting groove.

[0042] The connecting rod 3 is a double-threaded rod. Both ends of the connecting rod 3 pass through the two fixed rods 1 respectively, and then are tightened by nuts. The relative movement of the two nuts compresses the fixed rods 1, thus securing the entire phase change cold storage module.

[0043] This invention adds protruding support heads to the main planes on both sides of the cold storage box. When multiple cold storage boxes are suspended side by side, the corresponding support heads on adjacent boxes will abut against each other, acting like built-in "limiters," automatically and reliably forming a uniform air gap between the boxes. The formed gap becomes a channel for the natural convection of cold air (or hot air during cooling), greatly improving the airflow between the boxes and avoiding the decrease in heat exchange efficiency caused by close contact (i.e., the "thermal short circuit" phenomenon). At the same time, the enhanced airflow ensures that the phase change material exchanges heat with the surrounding environment (cold air) more quickly and evenly during the cooling process (solidification heat release) and cooling release (melting heat absorption), shortening the cooling time and extending the cooling release duration.

[0044] The cold storage box body 201 is also provided with a filling port 205, which is located on one of the smaller side surfaces. This side surface has a recessed portion, and the filling port 205 is located in this recessed portion.

[0045] Two clearance grooves 204 are respectively provided on the two main planes of the cold storage box body 201, and the two clearance grooves 204 are located between the two support heads 203. The support head 203 has a frustum-shaped structure. The hanging hole 202 on the cold storage box body 201 is a circular through hole, and the diameter of the hanging hole 202 is larger than the diameter of the bottom surface of the support head 203. The center points of the hanging hole 202, the support head 203 and the clearance groove 204 are located in the same plane, and this plane is perpendicular to the main plane of the cold storage box body 201 and parallel to the long side surface of the cold storage box body 201. The distance between the two support heads 203 is L1, and the distance between one of the clearance grooves 204 and the hanging hole 202 away from the clearance groove 204 is L2. L1 and L2 are equal.

[0046] Through the above structural design, during stacking, the support head on the bottom surface of the upper cold storage box can precisely embed into the corresponding clearance slot and hanging hole on the top surface of the lower cold storage box, while the support head on the top surface of the lower cold storage box can also embed into the corresponding structure on the bottom surface of the upper cold storage box. This "concave-convex interlocking" mechanism is like a built-in stacking guide rail. The nested cooperation between the support head and the hanging hole / clearance slot effectively prevents horizontal sliding and misalignment between boxes during transportation or storage, greatly improving the stability and safety of stacking. Nested stacking significantly reduces the stacking height, avoids the extra space waste caused by the protruding support head, and maximizes the use of transport vehicle or storage space. At the same time, the clearance slot provides a dedicated receiving space for the support head, avoiding deformation or damage caused by the support heads squeezing each other or hard contact with the box below during stacking. By combining the functional components of the cold storage box itself (hanging holes, support heads) with the newly added clearance slots, a highly efficient stacking and positioning system is formed. Under the premise of ensuring that the core structure of the cold storage function is not affected, the system perfectly solves the problem of efficient, stable, and space-saving stacking of cold storage boxes with protruding support heads in non-working states (transportation, storage).

[0047] The main plane of the cold storage box body 201 is also provided with multiple "capsule-shaped" grooves 206. The main function of these grooves 206 is to increase the surface area of ​​the cold storage box. These grooves of a specific shape significantly increase the effective contact surface area between the cold storage box and the surrounding cold / hot air. The groove structure disturbs the laminar flow of air flowing across the surface of the box, breaks down the static air boundary layer (thermal resistance layer) that hinders heat exchange, and promotes the generation of micro-vortices in the air within the grooves, thereby greatly enhancing the convective heat transfer efficiency.

[0048] <Cold Storage Shelves>

[0049] A cold storage rack includes a rack body and a phase change cold storage module, which is installed on the top of the rack body and / or between the beams of the rack body. By integrating the phase change cold storage module into the top of the rack body and / or between the beams, the module utilizes the property of phase change materials to absorb or release a large amount of latent heat during the phase change process. When power is sufficient or the refrigeration equipment is operating efficiently, the cold energy is stored in the module. When the refrigeration equipment operates intermittently, power fluctuates, or the temperature of the cold storage / refrigerated space may rise due to opening the door to retrieve goods, the phase change material solidified in the module actively releases the cold energy through a melting process, thereby forming a relatively stable and uniform low-temperature microenvironment in the rack and the surrounding goods area. This structural design not only smooths temperature fluctuations in the cold storage, extends the time that goods are in the safe temperature zone, and improves the quality and safety of refrigerated goods, but also reduces the dependence on the continuous high-load operation of traditional refrigeration systems by "peak shaving and valley filling," thus achieving energy-saving effects. In addition, the modules are directly embedded in the shelf structure, without taking up valuable storage space, thus optimizing the space utilization of cold storage and enhancing the overall reliability and economy of cold chain warehousing.

[0050] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A phase change cold storage module for cold storage, characterized in that: It includes two parallel fixed rods (1) and several phase change cold storage boxes (2) passing through the two fixed rods (1). The ends of the two fixed rods (1) are connected by a connecting rod (3). The phase change cold storage box (2) includes a cold storage box body (201) and a phase change cold storage material filled inside the cold storage box body (201). The cold storage box body (201) is a flat cuboid structure with two parallel rectangular main planes and four rectangular side faces connecting the main planes. The cold storage box body (201) has two hanging holes (202) that penetrate the main plane and are isolated from the internal chamber. Two protruding support heads (203) are respectively provided on the two main planes of the cold storage box body (201), and the two support heads (203) are located between the two hanging holes (202).

2. The phase change cold storage module for cold storage as described in claim 1, characterized in that: Two clearance slots (204) are respectively provided on the two main planes of the cold storage box body (201), and the two clearance slots (204) are located between the two support heads (203).

3. The phase change cold storage module for cold storage as described in claim 1, characterized in that: A recess is provided on one of the smaller side surfaces of the cold storage box body (201), and a filling port (205) is provided in the recess.

4. The phase change cold storage module for cold storage as described in claim 1, characterized in that: The support head (203) has a frustum-shaped structure.

5. The phase change cold storage module for cold storage as described in claim 4, characterized in that: The hanging hole (202) on the cold storage box body (201) is a circular through hole, and the diameter of the hanging hole (202) is larger than the diameter of the bottom surface of the support head (203).

6. The phase change cold storage module for cold storage as described in claim 5, characterized in that: The center points of the hanging hole (202), the support head (203), and the clearance groove (204) are located in the same plane, and the plane is perpendicular to the main plane of the cold storage box body (201) and parallel to the long side facade of the cold storage box body (201). The distance between the two support heads (203) is l1, and the distance between one of the clearance grooves (204) and the hanging hole (202) away from the clearance groove (204) is l2. l1 and l2 are equal.

7. The phase change cold storage module for cold storage as described in claim 1, characterized in that: The support head (203) and the cold storage box body (201) are integrally formed.

8. A phase change cold storage module for cold storage as described in claim 1, characterized in that: The main plane of the cold storage box body (201) is provided with an installation groove, which has an internal thread, and the lower part of the support head (203) can be screwed into the installation groove.

9. A phase change cold storage module for cold storage as described in claim 1, characterized in that: The main plane of the cold storage box body (201) is also provided with multiple "capsule-shaped" grooves (206).

10. A cold storage rack, characterized in that: Includes the rack body and the phase change cold storage module as described in any one of claims 1-9, wherein the phase change cold storage module is installed on the top of the rack body and / or between the beams of the rack body.

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