Fruit and vegetable quick freezing compartment type device

By employing serpentine cooling pipes and a closed-loop circulation system in the box-type rapid freezing unit for fruits and vegetables, the problems of slow freezing speed, high energy consumption, and poor freezing uniformity have been solved, achieving rapid, uniform freezing and high energy efficiency.

CN224580514UActive Publication Date: 2026-07-31ZHANGZHOU LONGHAI GUXINYUAN FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGZHOU LONGHAI GUXINYUAN FOOD CO LTD
Filing Date
2025-04-14
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing rapid freezing equipment suffers from slow freezing speed, high energy consumption, poor freezing uniformity, complex structure, and inconvenient maintenance, which affects food quality and transportation efficiency.

Method used

Design a box-type rapid freezing device for fruits and vegetables. It adopts a serpentine cooling pipe structure to form multiple storage spaces. Combined with a closed coolant circulation system, it enhances the efficiency and uniformity of cold energy transfer. The automatic door opening and closing system improves sealing and safety.

Benefits of technology

It achieves rapid and uniform freezing, reduces energy consumption, improves space utilization, and ensures food quality and transportation safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a box-type rapid freezing device for fruits and vegetables, comprising: a box body, a refrigeration box at the top of the box body, and a plurality of cooling pipes arranged parallel to each other at intervals inside the box body. The cooling pipes have a serpentine structure. A storage rack is provided in the storage space, and the storage rack is fixedly connected to the inner cavity side wall of the box body. A plurality of storage boxes are provided on the storage rack. One end of the cooling pipe is connected to the refrigeration box through a liquid supply pipe, and the other end is connected to the refrigeration box through a return pipe. The cooling pipe is filled with coolant, and the refrigeration box is used to provide the cooling pipe with coolant to a preset temperature. By adopting a serpentine structure for the cooling pipe, compared with a straight cooling plate, the contact area with the surrounding air and the fruits and vegetables in the storage boxes is greatly increased. This means that under the same coolant flow rate and temperature conditions, the serpentine cooling pipe can transfer cold energy to the surrounding fruits and vegetables more efficiently, achieving a rapid freezing effect.
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Description

Technical Field

[0001] This utility model belongs to the technical field of box-type refrigeration equipment, and specifically relates to a box-type rapid freezing device for fruits and vegetables. Background Technology

[0002] Flash freezing is a freezing technology that rapidly lowers the temperature of food to maintain its quality and texture. By quickly lowering the temperature of food below freezing, flash freezing effectively reduces the formation of ice crystals, thereby avoiding damage to the food's cellular structure and preserving its texture, flavor, and nutritional components.

[0003] Currently, there are some rapid freezing equipment on the market, but most of them have the following problems: slow freezing speed, inability to effectively inhibit the formation of ice crystals, affecting the rapid cooling and preservation effect of food; poor freezing uniformity, resulting in inconsistent freezing effects in different parts of the food; high energy consumption and high operating costs; complex equipment structure and inconvenient maintenance; low equipment turnover efficiency and difficulty in transportation.

[0004] Therefore, there is an urgent need for a rapid freezing device that is fast, energy-efficient, simple in structure, and provides uniform freezing effect. Utility Model Content

[0005] This utility model provides a box-type rapid freezing device for fruits and vegetables, which aims to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A box-type rapid freezing device for fruits and vegetables includes: a box body, a refrigeration box provided on the upper part of the box body, a plurality of cooling pipes arranged parallel to each other at intervals inside the box body, the cooling pipes having a serpentine structure, and the parallel pipe sections of a single cooling pipe forming a plurality of storage spaces, a storage rack provided in the storage space, the storage rack being fixedly connected to the inner cavity side wall of the box body, and a plurality of storage boxes provided on the storage rack;

[0008] One end of the cooling pipe is connected to the refrigeration box via a liquid supply pipe, and the other end is connected to the refrigeration box via a return pipe. The cooling pipe is filled with coolant, and the refrigeration box is used to provide the cooling pipe with coolant to a preset temperature.

[0009] Furthermore, the compartment has an opening on one side, an automatic opening and closing door is provided at the opening, a first connecting part is provided at the upper part of the opening, and a third connecting part is provided at the upper part of the automatic opening and closing door. The first connecting part and the third connecting part are rotatably connected by a pin.

[0010] The two vertical sidewalls outside the opening of the compartment are symmetrically provided with second connecting parts, and the automatic opening and closing door is symmetrically provided with fourth connecting parts. A telescopic rod is provided between the adjacent second connecting parts and fourth connecting parts, and the two ends of the telescopic rod are rotatably connected to the second connecting part and the fourth connecting part, respectively.

[0011] Furthermore, a sealing ring is provided on the side wall where the automatic opening and closing door mates with the opening of the compartment, and a sealing groove is provided on the compartment to mate with the sealing ring.

[0012] Furthermore, the storage rack includes a vertically arranged fixing plate, a horizontally arranged placement plate is fixedly connected to one side of the fixing plate, the fixing plate has several fixing holes, the fixing holes are engaged with the side wall of the compartment by fixing bolts; the placement plate has several placement slots, the placement slots are through the middle, and the placement slots are used to place storage boxes.

[0013] Furthermore, a baffle is inserted into the side of the placement slot away from the fixing plate.

[0014] Furthermore, the storage box includes: a support frame, an opening at the top of the support frame, support mesh on the remaining side walls, and a handle on one vertical side wall of the support frame.

[0015] Furthermore, the cooling pipes are divided into two groups in the inner cavity of the compartment and arranged symmetrically, forming a passage between the two groups of cooling pipes, and a shelf and a storage box are respectively installed in the two groups of cooling pipes.

[0016] Furthermore, the refrigeration box is equipped with a compressor, a storage tank, and a booster pump.

[0017] Furthermore, an operation panel, a display panel, and a control box are provided on the outer wall of the compartment, and a temperature sensor is provided inside the compartment.

[0018] Furthermore, the lower four corners of the compartment are provided with support feet.

[0019] Compared with the prior art, the present invention has the following technical effects:

[0020] 1. The fruit and vegetable rapid freezing device of this utility model utilizes a design that efficiently makes use of the internal space by arranging several serpentine cooling pipes at intervals and parallel within the compartment, with the parallel sections of each individual cooling pipe forming several storage spaces. Multiple shelves and storage boxes can be installed within the limited compartment volume, increasing the amount of fruits and vegetables that can be stored and improving the space utilization rate of the freezing device.

[0021] 2. The fruit and vegetable rapid freezing device of this utility model adopts a serpentine structure for its cooling pipes, which, compared to straight cooling plates, greatly increases the contact area with the surrounding air and the fruits and vegetables inside the compartment. This means that under the same coolant flow rate and temperature conditions, the serpentine cooling pipes can more efficiently transfer cold energy to the surrounding fruits and vegetables, accelerating the cooling speed and achieving rapid freezing. Furthermore, the parallel arrangement of several cooling pipes at intervals makes the cold energy distribution inside the compartment more uniform. Every storage space is cooled by the cooling pipes, avoiding localized excessively high or low temperatures. This ensures that fruits and vegetables placed in different locations are frozen in a relatively consistent low-temperature environment, which is beneficial for improving the freezing quality of fruits and vegetables and reducing the problem of uneven quality caused by temperature differences.

[0022] 3. In the fruit and vegetable rapid freezing device of this invention, one end of the cooling pipe is connected to the refrigeration box via a liquid supply pipe, and the other end is connected to the refrigeration box via a return pipe, forming a closed coolant circulation system. The refrigeration box can cool the coolant to a preset temperature and deliver it to the cooling pipe through the liquid supply pipe. After absorbing heat from the fruits and vegetables in the cooling pipe, the coolant returns to the refrigeration box through the return pipe for further cooling. This circulation system ensures continuous low temperature and efficient circulation of the coolant, providing a stable cold source for the rapid freezing of fruits and vegetables. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of a box-type rapid freezing device for fruits and vegetables as described in this utility model;

[0024] Figure 2 This is a cross-sectional view of a box-type rapid freezing device for fruits and vegetables as described in this utility model;

[0025] Figure 3 This is a schematic diagram of the arrangement of cooling pipes and shelves in a box-type rapid freezing device for fruits and vegetables according to this utility model.

[0026] Figure 4 This is a schematic diagram showing the combination of the storage rack and storage box of a box-type rapid freezing device for fruits and vegetables described in this utility model.

[0027] In the picture:

[0028] 1. Body; 101. First connecting part; 102. Second connecting part;

[0029] 2. Refrigeration box;

[0030] 3. Automatic door opening and closing; 301. Third connecting part; 302. Fourth connecting part; 303. Sealing ring;

[0031] 4. Liquid supply pipe; 5. Return pipe; 6. Cooling pipe;

[0032] 7. Shelf; 701. Fixing plate; 702. Placement plate; 703. Fixing hole; 704. Placement slot; 705. Baffle;

[0033] 8. Storage box; 801. Support frame; 802. Support mesh; 803. Handle;

[0034] 9. Support feet; 10. Telescopic rod; 11. Operation panel; 12. Display panel; 13. Control box. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments of this application and the accompanying drawings.

[0036] like Figure 1-2 As shown, a box-type rapid freezing device for fruits and vegetables includes: a box body 1, a refrigeration box 2 is provided on the upper part of the box body 1, a plurality of cooling pipes 6 are arranged parallel to each other at intervals inside the box body 1, the cooling pipes 6 have a serpentine structure, and the parallel pipe sections of a single cooling pipe 6 form a plurality of storage spaces, a storage rack 7 is provided in the storage space, the storage rack 7 is fixedly connected to the inner cavity side wall of the box body 1, and a plurality of storage boxes 8 are provided on the storage rack 7;

[0037] One end of the cooling pipe 6 is connected to the refrigeration box 2 via the liquid supply pipe 4, and the other end is connected to the refrigeration box 2 via the return pipe 5. The cooling pipe 6 is filled with coolant, and the refrigeration box 2 is used to provide the cooling pipe 6 with coolant to cool it to a preset temperature.

[0038] The cooling pipe 6 adopts a serpentine structure, which, compared to a straight cooling plate, significantly increases the contact area with the surrounding air and the fruits and vegetables inside the storage box 8. This means that under the same coolant flow and temperature conditions, the serpentine cooling pipe can more efficiently transfer cold energy to the surrounding fruits and vegetables, accelerating their cooling speed and achieving rapid freezing. Compared to single-sided cooling and air-cooling structures, it has a greater advantage in cooling efficiency. The new structure can reduce cooling time by approximately 30% and save 30% of energy consumption. Furthermore, the parallel arrangement of several cooling pipes at intervals makes the cold energy distribution inside the compartment more uniform, ensuring that every storage space is cooled by the cooling pipes, avoiding localized excessively high or low temperatures. This ensures that fruits and vegetables placed in different locations are frozen in a relatively consistent low-temperature environment, which is beneficial for improving the freezing quality of fruits and vegetables and reducing the problem of uneven quality caused by temperature differences.

[0039] like Figure 1-2As shown, the compartment 1 has an opening on one side, and an automatic opening and closing door 3 is provided at the opening. A first connecting part 101 is provided at the upper part of the opening of the compartment 1, and a third connecting part 301 is provided at the upper part of the automatic opening and closing door 3. The first connecting part 101 and the third connecting part 301 are rotatably connected by a pin.

[0040] The two vertical sidewalls outside the opening of the compartment 1 are symmetrically provided with second connecting parts 102, and the automatic opening and closing door 3 is symmetrically provided with fourth connecting parts 302. A telescopic rod 10 is provided between adjacent second connecting parts 102 and fourth connecting parts 302, and the two ends of the telescopic rod 10 are rotatably connected to the second connecting parts 102 and the fourth connecting parts 302, respectively. The automatic opening and closing door 3 can effectively improve the sealing performance of the compartment 1. In the closed state, the door can tightly seal the compartment opening, preventing dust, moisture, foreign objects, etc. from entering the compartment and protecting the equipment and items inside the compartment from the influence of the external environment. Furthermore, the automatic opening and closing door can also increase the security of the compartment. By setting door locks and other devices, unauthorized personnel can be prevented from entering the compartment, ensuring the safety of the items inside the compartment.

[0041] like Figure 2 As shown, a sealing ring 303 is provided on the side wall where the automatic opening and closing door 3 mates with the opening of the compartment 1, and a sealing groove is provided on the compartment 1 to mate with the sealing ring 303. The cooperation of the sealing ring 303 and the sealing groove improves the sealing performance between the automatic opening and closing door 3 and the compartment 1, preventing cold air leakage inside the compartment 1 and thus reducing energy consumption.

[0042] In one specific embodiment, the interior of the compartment 1 and the automatic opening and closing door 3 is provided with an insulation layer. The insulation layer reduces heat exchange, and the energy consumption required for the compartment 1 to maintain the internal temperature is significantly reduced. The refrigeration equipment does not need to be frequently started to replenish the lost cooling capacity, thereby saving electricity.

[0043] like Figure 3-4 As shown, the storage rack 7 includes a vertically arranged fixing plate 701, and a horizontally arranged placement plate 702 is fixedly connected to one side of the fixing plate 701. The fixing plate 701 has a plurality of fixing holes 703, which are engaged with the side wall of the compartment 1 by fixing bolts. The placement plate 702 has a plurality of placement slots 704, which are through the middle of the placement slots 704 and are used to place the storage box 8.

[0044] By creating several fixing holes 703 on the fixing plate 701 and engaging with the side wall of the compartment 1 using fixing bolts, the shelf 7 can be easily installed inside the compartment 1 to make full use of the space. Furthermore, the fixing bolt connection provides a reliable fixing effect, ensuring that the shelf 7 will not easily shake or shift during use, thus guaranteeing its stability and safety.

[0045] The placement slot 704 is used to place the storage box 8, and the middle of the placement slot 704 is through-hole. This design allows the temperature of the cooling pipe 6 to be better transferred to the objects inside the storage box 8, thereby improving the cooling efficiency of the cooling pipe 6. Preferably, the shape of the placement slot 704 is adapted to the storage box 8 to prevent the storage box 8 from shaking or falling during movement.

[0046] like Figure 4 As shown, a baffle 705 is inserted into the side of the placement slot 704 away from the fixing plate 701. The baffle 705 can block the storage box 8 from sliding out of the placement slot 704. Especially when the box 1 moves or is subjected to vibration, the baffle 705 can effectively protect the items in the storage box 8 and reduce the risk of damage to the items.

[0047] like Figure 4 As shown, the storage box 8 includes a support frame 801 with an opening at the top and support mesh 802 on the remaining side walls. A handle 803 is provided on one vertical side wall of the support frame 801. The side walls formed by the support mesh 802 allow air to circulate freely inside and outside the storage box 8. In a freezing environment, this facilitates the entry of cold air into the storage box and the formation of good convection circulation. Compared to a closed storage box, the support mesh structure does not obstruct the flow of cold air, allowing all corners inside the box to quickly reach a lower temperature, ensuring even cooling of items and achieving a good freezing effect.

[0048] like Figure 3 As shown, the cooling pipes 6 are divided into two groups within the inner cavity of the compartment 1 and arranged symmetrically, forming a passageway between the two groups of cooling pipes 6. Each group of cooling pipes 6 contains a shelf 7 and a storage box 8. This structural design fully utilizes the internal space of the compartment 1, rationally distributing the cooling pipes 6, shelves 7, and storage boxes 8, thus avoiding space waste. By placing the cooling pipes 6 on both sides of the compartment and leaving a passageway in the middle, both the cooling effect and sufficient space are provided for the storage of items and the operation of personnel, improving the space utilization rate of the compartment.

[0049] In one specific embodiment, the refrigeration box 2 is equipped with a compressor, a storage tank, and a booster pump. The refrigeration box 2 can adopt conventional existing technology, and its specific structure will not be described again.

[0050] like Figure 1 As shown, an operation panel 11, a display panel 12, and a control box 13 are installed on the outer wall of the compartment 1, and a temperature sensor is installed inside the compartment 1. Operators can set various operating parameters of the compartment 1 through the operation panel 11. For example, a target temperature can be set, and the compartment temperature can be adjusted to a suitable range according to the storage requirements of different items; parameters such as cooling time and defrosting cycle can also be set to achieve personalized operating modes. The display panel 12 can display the temperature inside the compartment 1 in real time, allowing operators to intuitively understand whether the current temperature inside the compartment is within the normal range. In addition, it can also display the operating status of the refrigeration system, such as the compressor's working time and cooling power, facilitating monitoring of the equipment's operating status. The temperature sensor, installed inside the compartment 1, can accurately sense temperature changes inside the compartment in real time. It converts the temperature signal into an electrical signal and transmits it to the control box 13, providing accurate data support for the control box's decision-making.

[0051] like Figure 1 As shown, the lower four corners of the compartment 1 are provided with support feet 9. During the installation of the compartment, the support feet 9 make the positioning of the compartment 1 more accurate and convenient, ensuring smooth connection between the compartment and other equipment or facilities, and improving the installation quality.

[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A box-type rapid freezing device for fruits and vegetables, characterized in that, include: The compartment (1) has a refrigeration box (2) on its upper part. Several cooling pipes (6) are arranged parallel to each other inside the compartment (1). The cooling pipes (6) have a serpentine structure, and the parallel pipe sections of a single cooling pipe (6) form several storage spaces. A shelf (7) is provided in the storage space. The shelf (7) is fixedly connected to the inner cavity side wall of the compartment (1). Several storage boxes (8) are provided on the shelf (7). One end of the cooling pipe (6) is connected to the refrigeration box (2) through the liquid supply pipe (4), and the other end is connected to the refrigeration box (2) through the return pipe (5). The cooling pipe (6) is filled with coolant, and the refrigeration box (2) is used to provide the cooling pipe (6) with coolant to a preset temperature.

2. The rapid freezing device for fruits and vegetables according to claim 1, wherein The compartment (1) has an opening on one side, and an automatic opening and closing door (3) is provided at the opening. A first connecting part (101) is provided at the upper part of the opening of the compartment (1), and a third connecting part (301) is provided at the upper part of the automatic opening and closing door (3). The first connecting part (101) and the third connecting part (301) are rotatably connected by a pin. The two vertical sidewalls outside the opening of the compartment (1) are symmetrically provided with second connecting parts (102), and the automatic opening and closing door (3) is symmetrically provided with fourth connecting parts (302). A telescopic rod (10) is provided between the adjacent second connecting parts (102) and fourth connecting parts (302), and the two ends of the telescopic rod (10) are rotatably connected to the second connecting parts (102) and the fourth connecting parts (302) respectively.

3. The rapid freezing device for fruits and vegetables according to claim 2, wherein A sealing ring (303) is provided on the side wall of the automatic opening and closing door (3) that cooperates with the opening of the compartment (1), and a sealing groove that cooperates with the sealing ring (303) is provided on the compartment (1).

4. The rapid freezing device for fruits and vegetables according to claim 1, wherein The shelf (7) includes a vertically arranged fixing plate (701), and a horizontally arranged placement plate (702) is fixedly connected to one side of the fixing plate (701). The fixing plate (701) has several fixing holes (703), which are engaged with the side wall of the compartment (1) by fixing bolts. The placement plate (702) has several placement slots (704), which are through the middle of the placement slots (704) and are used to place storage boxes (8).

5. The rapid freezing device for fruits and vegetables according to claim 4, wherein A baffle (705) is inserted into the side of the placement slot (704) away from the fixing plate (701).

6. The rapid freezing device for fruits and vegetables according to claim 5, wherein The storage box (8) includes: a support frame (801), the upper part of the support frame (801) is provided with an opening, the remaining side walls are provided with a support net (802), and a handle (803) is provided on a vertical side wall of the support frame (801).

7. The rapid freezing device for fruits and vegetables according to claim 1, wherein The cooling pipes (6) are divided into two groups in the inner cavity of the compartment (1) and are arranged symmetrically. A passage is formed between the two groups of cooling pipes (6). A shelf (7) and a storage box (8) are respectively provided in the two groups of cooling pipes (6).

8. The rapid freezing device for fruits and vegetables according to claim 1, wherein The refrigeration box (2) is equipped with a compressor, a storage tank and a booster pump.

9. The rapid freezing device for fruits and vegetables according to claim 1, wherein An operation panel (11), a display panel (12), and a control box (13) are provided on the outer wall of the compartment (1), and a temperature sensor is provided inside the compartment (1).

10. The rapid freezing device for fruits and vegetables according to claim 1, wherein The lower four corners of the compartment (1) are provided with support feet (9).