Partitioned quick-freezing cabinet

Abstract

The application discloses a partitioned quick-freezing cabinet, which comprises a quick-freezing chamber, wherein the quick-freezing chamber comprises a plurality of small chambers, each of which corresponds to one or two cabinet doors; a plurality of layers of direct-cooling pipes are arranged in each small chamber; a shunt pipe and a collecting pipe are further arranged; the inlet of the direct-cooling pipe is movably connected with the shunt pipe; the outlet of the direct-cooling pipe is movably connected with the collecting pipe; the partitioned quick-freezing cabinet further comprises a compressor, and the compressor is connected with the shunt pipe and the collecting pipe in each small chamber through a pipeline. The large quick-freezing chamber is divided into a plurality of small chambers, and opening the cabinet door of one small chamber does not affect the temperature and freezing effect of other small chambers; the direct-cooling pipes are convenient to disassemble and maintain; and the bottom of the small chamber is inclined to facilitate water drainage.

Description

Technical Field

[0001] This invention relates to blast freezers, and more particularly to the partitioned layout of storage space and direct cooling structure. Background Technology

[0002] Quick-freezing cabinets are common equipment used in the food industry to preserve food. One type of high-efficiency quick-freezing cabinet is the direct-cooling quick-freezing cabinet. For example, the Chinese utility model patent with authorization announcement number CN219841691U places the evaporator inside the quick-freezing chamber, and the evaporator is layered. "The tray is placed directly in the evaporator pipeline, and the cold energy is directly transferred to the food, resulting in faster freezing speed and no strong airflow. This allows for better locking in of food moisture and better preservation."

[0003] However, existing blast freezers, including the aforementioned technical solutions, typically have only one blast freezer compartment (blast chamber). Larger blast freezers may have two or more doors for easy access to food. Opening a door inevitably causes a rapid temperature increase in the corresponding area of ​​the blast freezer. For multi-door blast freezers, due to the single internal space and rapid heat convection, opening even one door quickly raises the temperature of the entire compartment, affecting overall freezing performance. Furthermore, this type of blast freezer makes evaporator repair or replacement extremely difficult. Without removing the entire evaporator, operations are limited to a confined space, making common welding operations very inconvenient. Conversely, removing the entire evaporator is obstructed by door posts.

[0004] In addition, during the intervals when the freezer is not in operation, frost and ice melt and accumulate as water at the bottom of the freezer compartment. Existing freezers usually require opening the door and allowing the interior to air dry, or manually wiping it with a cloth, which is laborious, energy-consuming, and time-consuming. Summary of the Invention

[0005] The purpose of this invention is to improve and innovate upon at least one of the shortcomings or problems existing in the prior art, and to provide a quick-freezing cabinet with partitioned quick-freezing compartments.

[0006] The technical solution of the present invention is to construct a partitioned quick-freezing cabinet, including a quick-freezing chamber, wherein the quick-freezing chamber includes several small compartments, and each small compartment corresponds to one or two cabinet doors; Each of the aforementioned small chambers is provided with several layers of direct cooling pipes, and also includes a distribution pipe and a collection pipe. The inlet of each layer of direct cooling pipes is movably connected to the distribution pipe, and the outlet of each layer of direct cooling pipes is movably connected to the collection pipe. The partitioned quick-freezing cabinet also includes a compressor, which is connected to the distribution pipe and the collection pipe in each compartment via pipes.

[0007] In one embodiment, the bottom of the small chamber is sloped, and a drainage groove is provided at the lowest point or inside the cabinet door.

[0008] In one embodiment, each layer of the straight cooling pipe is formed by bending a single pipe; or by connecting multiple straight pipes and bends.

[0009] In one embodiment, the direct cooling pipe is an S-shaped bend, with the straight section facing left and right. The inlet is at the front end, and the outlet is folded back from the rear end to the front end, facing left and right respectively with the inlet. The branch pipe and the collector pipe are welded to the direct cooling pipe or connected by movable connectors.

[0010] The movable connector includes a first pipe with external threads, a second pipe with outward-flaring edges, and an internally threaded cap with an open bottom. The internally threaded cap is fitted onto the second pipe, and the first pipe is positioned in a left-right direction on the branch pipe or the collector pipe.

[0011] In one embodiment, the bottom of the direct cooling pipe is provided with a front-to-back oriented fixing strip, the direct cooling pipe is fixedly connected to the fixing strip, and the left and right side walls of the chamber are provided with angle steel to support the fixing strip.

[0012] In one embodiment, the fixing strip is disposed at the bends on both sides of the straight cooling pipe.

[0013] In one embodiment, the top of the direct cooling pipe is provided with a metal perforated plate, or the front and rear ends of the metal perforated plate are bent downwards.

[0014] Each layer of the direct cooling pipe is formed by bending a single pipe; or by connecting multiple straight pipes and bent pipes.

[0015] An external connection component is provided at the front end of the direct cooling pipe or at the bend of the front end of the metal perforated plate.

[0016] Advantages and beneficial effects of this invention: This invention divides the large quick-freezing chamber into several smaller compartments. Opening the door of one compartment does not affect the temperature and freezing effect of the other compartments. The direct cooling pipes, distribution pipes, and manifolds are designed to be detachable, allowing for easy removal and maintenance of each component without being limited by the space within the compartment, thus facilitating maintenance. The bottom of each compartment is designed with a slope, allowing water to drain smoothly and easily, in conjunction with drainage channels. In a further technical solution, the direct cooling pipes, formed by bending a single pipe, have few joints, resulting in stability and reliability. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of Embodiment 1.

[0018] Figure 2 is a structural diagram of Figure 1 after removing the cabinet door.

[0019] Figure 3 is a schematic diagram of the direct cooling pipe, the branch pipe, the manifold, and their connection to the compressor in Example 1.

[0020] Figure 4 is a schematic diagram showing the connection relationship between the small chamber and a direct cooling pipe, a branch pipe and a manifold.

[0021] Figure 5 is a cross-sectional view of Figure 4 (AA).

[0022] Figure 6 is a schematic diagram of a direct cooling pipe.

[0023] Figure 7 is a structural schematic diagram of a movable connector.

[0024] Figure 8 is a schematic diagram of the direct cooling pipe in Example 2.

[0025] Figures 9 and 10 are schematic diagrams showing the installation positions of the two external connection components in the embodiments. Detailed Implementation

[0026] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0027] It should be noted that when an element is considered to be "set" on another element, it can be directly set on or connected to the other element, or an intermediate element may be present simultaneously. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for descriptive purposes only and is not intended to limit the invention. Example 1

[0029] As shown in Figures 1, 2, and 3, a partitioned quick-freezing cabinet includes a quick-freezing chamber 1, which includes three smaller compartments 2, each of which corresponds to a cabinet door 3. Each of the aforementioned small chambers 2 is provided with several layers of direct cooling pipes 4, and also includes a distribution pipe 5 and a collection pipe 6. The inlet of the direct cooling pipe 4 is movably connected to the distribution pipe 5, and the outlet of the direct cooling pipe 4 is movably connected to the collection pipe 6. The partitioned quick-freezing cabinet also includes a compressor 7, which is connected to the distribution pipe 5 and the collection pipe 6 in each compartment 2 via pipes 8. The refrigerant circulates between the direct cooling pipe 4 and the compressor 7 through the distribution pipe 5 and the collection pipe 6.

[0030] As shown in Figures 3, 4, and 6, the direct cooling pipe 4 is an S-shaped bend, with the straight section pointing left and right. The inlet 9 is at the front end, and the outlet 10 is turned back from the rear end to the front end, facing left and right respectively with the inlet 9 (in this embodiment, the inlet 9 faces left and the outlet 10 faces right; in actual applications, the orientation of the inlet, outlet, and the branch pipe and collector pipe can be adjusted as needed; the front end and rear end reflect the orientation relative to the overall direct cooling pipe, with the front end closer to the cabinet door and the rear end further away from the cabinet door). The branch pipe 5 and collector pipe 6 are connected to the direct cooling pipe 4 through movable connectors. Specifically, as shown in Figure 7, the movable connector includes a first pipe fitting 11 with external threads, a second pipe fitting 13 with an outwardly turned edge 12, and an internally threaded cap 14 with a bottom opening. The internally threaded cap 14 is fitted onto the second pipe fitting 13. The first pipe fitting 11 is positioned laterally on the branch pipe 5 or the collector pipe 6. The second pipe fitting 13 and the internally threaded cap 14 are located at the inlet 9 and outlet 10 of the direct cooling pipe 4, respectively. Sealing gaskets can be provided on the contact surfaces of the first pipe fitting 11 and the second pipe fitting 13 as needed.

[0031] As shown in Figure 4-6, the bottom of the direct cooling pipe 4 is provided with two fixing strips 15 facing forward and backward. The fixing strips 15 are located at the bends on the left and right sides of the direct cooling pipe 4 and are fixedly connected to the direct cooling pipe. Angle steel 16 supporting the fixing strips 15 is provided on the left and right side walls of the chamber 2. The function of the fixing strips 15 is twofold: first, to maintain the relative stability of the positions of each section of the direct cooling pipe 4; and second, to support the direct cooling pipe 4 and indirectly place it on the angle steel 16.

[0032] As shown in Figure 5, the bottom of the small chamber 2 is an inclined plane with a certain angle α with the horizontal plane, which ensures that the water on the inclined plane can flow from high to low. The lowest point is near the cabinet door. A drainage groove 17 is provided at the lowest point or on the inside of the cabinet door. The direction of water dripping onto the inclined plane is shown by the arrow in the figure. Example 2

[0033] Based on Embodiment 1, as shown in Figure 8, the top of the direct cooling pipe 4 in this embodiment is further provided with a metal perforated plate 18. The metal perforated plate 18 has several through holes running vertically. When food is placed on or removed from the direct cooling pipe 4, the metal perforated plate 18 is sandwiched between the food container and the direct cooling pipe, preventing the food container from rubbing against the direct cooling pipe and reducing damage. The through holes in the metal perforated plate 18 allow cold air and water to pass through.

[0034] Furthermore, as shown in Figure 9, the metal perforated plate 18 is bent downwards at both ends 19, and the front and rear ends surround the direct cooling pipe 4.

[0035] To cooperate with other devices, external connecting components 20 (such as magnets or blocks attracted by magnets, etc.) can be installed at the front bend of the metal perforated plate 18 or at the outermost section of the direct cooling pipe 4 (near the cabinet door section), as shown in Figure 9. Figure 10 As shown, it can be used in conjunction with other devices (such as electromagnets) for locking, in order to achieve linkage and automated operation.

[0036] In this embodiment, if the metal perforated plate 18 is in close contact and fixed with the direct cooling pipe 4, it can also serve as a heat-conducting fin.

[0037] Compared to existing technologies, this invention divides the quick-freezing chamber into several small compartments, each with its own independent interior space. Opening the door of one compartment does not affect the cold air in the other compartments.

[0038] To overcome the drawback of existing technologies where the entire direct cooling pipe (evaporator) needs to be removed for maintenance due to lack of space, this invention provides a separately detachable structure for the direct cooling pipe. In addition to the convenience of threaded connections, the outlet and inlet of the direct cooling pipe face left and right respectively, with corresponding branch pipes and manifolds located at the left and right ends of the entire direct cooling pipe assembly. In this invention, the connection surfaces of the first and second fittings in the movable connectors are in a front-back direction (i.e., parallel to the disassembly direction of the direct cooling pipe). This ensures a reliable connection to the direct cooling pipe without obstructing its removal. Furthermore, it prevents pulling during connection with the branch pipes and manifolds, ensuring that the direct cooling pipe, branch pipe, and manifold are all in a freely extended state, eliminating the risk of deformation and damage, and extending their service life. Of course, even if the direct cooling pipe is connected to the branch pipe and manifold by welding, the connection point is located near the cabinet door, making cutting and reconnection convenient.

[0039] Furthermore, in existing technologies, direct cooling pipes are typically welded together outside the blast freezer before being installed into the blast freezer. They are composed of short sections of straight pipe and 180-degree bends, resulting in numerous weld points and seams, which are also common points of failure. Limited installation space further complicates maintenance. Using a single bent pipe for each layer of direct cooling pipes avoids this problem. Moreover, because direct cooling pipes have a detachable structure, even if they are designed to be welded from multiple straight and bent pipes, they can be easily removed for maintenance, significantly reducing the workload compared to existing technologies.

[0040] The embodiments described herein are merely preferred embodiments of the invention and are not intended to limit the concept and scope of the invention. Any modifications and improvements made by those skilled in the art to the technical solutions of the invention without departing from the design concept of the invention should fall within the protection scope of the invention. The technical content for which protection is sought in this invention has been fully described in the claims.

Claims

1. A partitioned quick-freezing cabinet, characterized in that: Includes a quick-freezing chamber, which comprises several small compartments, each corresponding to one or two cabinet doors; Each of the aforementioned small chambers is equipped with several layers of direct cooling pipes, and also includes distribution pipes and manifolds. The inlet of each layer of direct cooling pipes is movably connected to the distribution pipe, and the outlet of each layer of direct cooling pipes is movably connected to the manifold. The partitioned quick-freezing cabinet also includes a compressor, which is connected to the distribution pipe and the collection pipe in each compartment via pipes.

2. The partitioned quick-freezing cabinet according to claim 1, characterized in that: The bottom of the small chamber is sloping, and a drainage groove is provided at the lowest point or inside the cabinet door.

3. The partitioned quick-freezing cabinet according to claim 1, characterized in that: The direct cooling pipe in each layer is an S-shaped bend, with the straight section facing left and right. The inlet and outlet are both at the front end. One of the outlets is folded back from the rear end to the front end and faces left and right respectively with the other outlet. The branch pipe and the manifold are welded to the direct cooling pipe or connected by movable connectors.

4. The partitioned quick-freezing cabinet according to claim 3, characterized in that: The movable connector includes a first pipe with external threads, a second pipe with outward-flaring edges, and an internally threaded cap with an open bottom. The internally threaded cap is fitted onto the second pipe, and the first pipe is positioned in a left-right direction on the branch pipe or the collector pipe.

5. The partitioned quick-freezing cabinet according to claim 1, characterized in that: The left and right side walls of the small chamber are equipped with angle steel to support the direct cooling pipes.

6. The partitioned quick-freezing cabinet according to claim 5, characterized in that: The bottom of the direct cooling pipe is provided with a front-to-back oriented fixing strip, and the direct cooling pipe is fixedly connected to the fixing strip.

7. The partitioned quick-freezing cabinet according to claim 6, characterized in that: The fixing strips are installed at the bends on both sides of the direct cooling pipe.

8. The partitioned quick-freezing cabinet according to claim 1, characterized in that: The top of the direct cooling pipe is provided with a metal perforated plate, or the front and rear ends of the metal perforated plate are bent downwards.

9. The partitioned quick-freezing cabinet according to any one of claims 1-8, characterized in that: The aforementioned straight cooling pipe is formed by bending a single pipe; or it is formed by connecting multiple straight pipes and bent pipes.

10. The partitioned quick-freezing cabinet according to any one of claims 1-8, characterized in that: An external connection component is provided at the front end of the direct cooling pipe or at the bend of the front end of the metal perforated plate.

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