Multi-temperature partitioned cold store
By designing a multi-temperature zoned cold storage, with separate insulation structures for the external cold storage and the ultra-low temperature cold storage, and the cargo entry and exit channels located at the top of the storage body, the problem of cold air leakage during cargo entry and exit in the ultra-low temperature cold storage is solved using lifting equipment and automatic door control. This achieves stable and uniform storage temperature, and reduces energy consumption and operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGKELUN REFRIGERATION EQUIP CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-23
AI Technical Summary
Existing ultra-low temperature cold storage facilities suffer from severe cold air leakage when goods are moved in and out, resulting in unstable storage temperatures, increased energy consumption, and high operating costs for enterprises.
Design a multi-temperature zoned cold storage facility. The external cold storage and the ultra-low temperature cold storage are each equipped with a complete insulation structure. The goods entry and exit channel is located at the top of the storage body, adopting a storage-within-a-warehouse model. Goods are transported using lifting equipment, and the storage doors are automatically controlled by a speed reducer. A double interlocking door is installed between the external cold storage and the ultra-low temperature cold storage.
It effectively reduces cold loss, maintains stable and uniform storage temperature, reduces cold air leakage, lowers energy consumption, and reduces operating costs.
Smart Images

Figure CN224398105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold storage, and in particular to a multi-temperature zoned cold storage. Background Technology
[0002] Cold storage facilities are primarily used for the constant-temperature storage of food, dairy products, meat, aquatic products, pharmaceuticals, and chemical raw materials. With the rapid development of cold chain logistics in recent years, the function of cold storage has expanded beyond traditional single-temperature storage; there is an increasing demand for multi-temperature storage areas. As science and technology continue to advance, certain industries require stable temperatures in cold storage facilities at -50℃ or even lower for experiments or storage. Due to the extremely low temperatures, these are commonly referred to as ultra-low temperature cold storage. Ultra-low temperature cold storage is widely used in: the automotive, electronics, and aerospace industries for the testing and storage of parts; the food industry for ultra-low temperature processing and storage, as well as the low-temperature quick-freezing of tuna; and the military industry for the testing and storage of low-temperature weapons and parts. Because of the low temperatures and large temperature differences between ultra-low temperature cold storage and the outside environment, pressure differences (large density differences) occur, leading to cold leakage when storing and retrieving goods. Currently, methods such as increasing refrigeration unit fan speed and adding more refrigeration units increase energy consumption, temperature instability, and operating costs for businesses.
[0003] Therefore, from the perspective of cold storage structural design, the motivation for the creation of this utility model is to provide a multi-temperature zone cold storage that is simple in structure, low in cost, and can reduce cold air leakage and ensure more uniform storage temperature when goods are entering and leaving. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a multi-temperature zone cold storage that is simple in structure, low in cost, and can reduce cold air leakage and ensure more uniform storage temperature when goods are entering and leaving the warehouse.
[0005] The present invention provides a multi-temperature zoned cold storage, the technical solution of which is as follows:
[0006] A multi-temperature zoned cold storage includes an outer cold storage, the six sides of which are provided with a complete and continuous insulation structure. An ultra-low temperature cold storage is set inside the outer cold storage, the six sides of which are provided with a complete and continuous insulation structure. The cargo entry and exit channels of the ultra-low temperature cold storage are set at the top of the storage body, and the cargo entry and exit channels are respectively connected to lifting equipment.
[0007] Specifically, the temperature of the external cold storage is set to -18℃ to -25℃, and the temperature of the ultra-low temperature cold storage is set to -50℃ to -60℃.
[0008] Specifically, the lifting equipment is a stacker crane or a four-way vehicle.
[0009] Specifically, the low-temperature storage door is automatically opened or closed via a speed reducer.
[0010] Specifically, the cargo entry and exit channels of the external cold storage are equipped with double interlocking doors.
[0011] The implementation of this utility model has the following technical effects:
[0012] This utility model discloses a multi-temperature zoned cold storage, which includes an outer cold storage and an inner ultra-low temperature cold storage. The ultra-low temperature cold storage has a complete and continuous insulation structure on its six sides. The cargo access channel of the ultra-low temperature cold storage is located at the top of the storage body. The ultra-low temperature cold storage adopts a storage-within-a-storage model, and the ultra-low temperature cold storage is always kept at a constant temperature. This minimizes temperature fluctuations and unevenness caused by natural loss of cold air within the cold storage, resulting in a more stable temperature. Most notably, since cold air is denser and warmer air is lighter, this utility model places the cargo access channel at the top of the storage body, which reduces cold air leakage when goods are being moved in or out, ensuring a more uniform temperature within the storage. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a multi-temperature zoned cold storage structure according to an embodiment of the present invention.
[0014] Figure 2 This is a partial structural diagram of an ultra-low temperature cold storage facility.
[0015] In the diagram: 1. External cold storage; 2. Ultra-low temperature cold storage; 3. Goods entry and exit channel; 4. Low temperature storage door; 5. Gear reducer; 6. Lifting equipment; 7. Double interlocking door. Detailed Implementation
[0016] The present invention will now be described in detail with reference to the embodiments and accompanying drawings. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention and do not constitute any limitation thereof.
[0017] See Figure 1 and Figure 2As shown in the figure, this embodiment provides a multi-temperature zoned cold storage, including an outer cold storage 1. The six-sided structure of the outer cold storage 1 is provided with a complete and continuous insulation structure, so that the entire insulation structure is free of cold bridges, which greatly reduces the heat of the cold storage enclosure structure. The outer cold storage 1 is provided with a goods entry and exit channel 3. The six-sided structure of the goods entry and exit channel 3 is provided with a complete and continuous insulation structure. The goods entry and exit channel 3 is located in the upper part of the storage body. The upper part refers to above the midline of the storage body height, and the closer to the top, the better. The goods entry and exit channels are respectively connected to lifting equipment 6, and the lifting equipment 6 realizes the entry and exit of goods in the goods entry and exit channel 3. The goods entry / exit channel 3 adopts a warehouse-within-a-warehouse model, maintaining a constant temperature to minimize temperature fluctuations and unevenness caused by natural loss of cold air within the cold storage. This results in a more stable temperature within the goods entry / exit channel 3. Notably, since cold air is denser and warmer air is lighter, this embodiment places the goods entry / exit channel 3 at the top of the cold storage structure. This reduces cold air leakage during goods entry and exit, ensuring a more uniform temperature. For example, the external cold storage 1 has a temperature set between -18℃ and -25℃, while the goods entry / exit channel 3 has a temperature set between -50℃ and -60℃. The lifting device 6 is a stacker crane or a four-way vehicle. The low-temperature storage door 4 automatically opens and closes via a reducer 5. The goods entry / exit channel of the external cold storage 1 is equipped with double interlocking doors 7.
[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A multi-temperature zoned cold storage facility, comprising an outer cold storage unit, wherein the hexahedron of the outer cold storage unit is provided with a complete and continuous insulation structure, characterized in that: The external cold storage is equipped with an ultra-low temperature cold storage. The six sides of the ultra-low temperature cold storage are provided with a complete and continuous insulation structure. The cargo entry and exit channels of the ultra-low temperature cold storage are located at the top of the storage body and are respectively connected to lifting equipment.
2. The multi-temperature zoned cold storage according to claim 1, characterized in that: The temperature of the external cold storage is set to -18℃ to -25℃, and the temperature of the ultra-low temperature cold storage is set to -50℃ to -60℃.
3. A multi-temperature zoned cold storage according to claim 1, characterized in that: The lifting equipment is a stacker crane or a four-way vehicle.
4. A multi-temperature zoned cold storage according to claim 1, characterized in that: The low-temperature storage door is automatically opened or closed via a speed reducer.
5. A multi-temperature zoned cold storage according to claim 1, characterized in that: The external cold storage facility is equipped with double interlocking doors on its cargo entry and exit channels.