Freeze dryer with circulating cooling function

Abstract

The utility model discloses a freeze-drying machine with a circulating cooling function. The freeze-drying machine comprises a freeze-drying box and a control panel, a control panel is installed at the bottom of the front end of the freeze-drying box, a circulating freezing assembly is arranged at the bottom end in the freeze-drying box, heat dissipation openings are formed in the two sides of the freeze-drying box, a vacuum pump is installed at the top end of the freeze-drying box, and a heat dissipation structure is arranged on one side in the bottom end of the freeze-drying box. A motor is installed at the rear end of the freeze-drying box, and a rotating structure is arranged in the freeze-drying box. By arranging the rotating structure, when freeze-drying is carried out, the cover plate can be driven to rotate by using the motor and the rotating plate, so that food raw materials are freeze-dried or dried more uniformly, and the freeze-drying effect is better; furthermore, through threaded connection of a nut and a limiting column, the cover plate is pressed on the placing plate, the food raw materials are clamped, the food raw materials are not prone to falling off in the rotating process, and therefore clamping work is completed.

Description

Technical Field

[0001] This utility model relates to the field of freeze dryer technology, and in particular to a freeze dryer with a circulating cooling function. Background Technology

[0002] Freeze dryers are widely used in the food industry to produce various freeze-dried foods, such as dried fruits and vegetables, dried meats, and dried seafood. These freeze-dried foods have advantages such as easy storage, convenient transportation, and easy consumption, while preserving the original color, aroma, flavor, shape, and nutritional components of the food to the greatest extent possible.

[0003] The patent number CN221076992U describes a freeze dryer with a circulating cooling device. Its structure includes a body, control panel, sealing door, freezer compartment, stabilizing support, reinforcing rod, motor compartment, and heat dissipation cavity. The freezer compartment of this invention is equipped with an embedded stabilizing support. A first and second shelf are used to place items to be freeze-dried. The support base and transfer bracket are combined and located within the cavity space. After the freeze-drying operation is completed, the sealing door can be opened, and the fasteners can be pulled outwards to disengage the slide rail. The central support slider then slides out along the linear rail. The external transfer bracket can also be used to accelerate the movement speed, effectively improving the retrieval space and operational flexibility, thereby increasing the operating efficiency of the freeze dryer.

[0004] The aforementioned technology uses an external pull-out rack to accelerate movement, effectively improving the retrieval space and operational flexibility. During freeze-drying, different parts of the material may experience inconsistent drying speeds due to factors such as position, shape, and thickness. However, traditional freeze dryers with circulating cooling functions place materials directly on the trays for freeze-drying, which can easily lead to uneven freezing of some materials. Therefore, a freeze dryer with circulating cooling function is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a freeze dryer with a circulating cooling function, in order to solve the defect of traditional freeze dryers with circulating cooling function, which are prone to uneven freeze drying due to inconsistent drying speeds in different parts of the material caused by factors such as position, shape, and thickness.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a freeze dryer with circulating cooling function, including a freeze drying chamber and a control panel; the control panel is installed at the bottom of the front end of the freeze drying chamber, a circulating freezing component is provided at the bottom of the interior of the freeze drying chamber, heat dissipation vents are provided on both sides of the freeze drying chamber, a vacuum pump is installed at the top of the freeze drying chamber, and a heat dissipation structure is provided on one side of the interior of the bottom of the freeze drying chamber; a motor is installed at the rear end of the freeze drying chamber, a rotating structure is provided inside the freeze drying chamber, heating components are installed on both sides of the interior of the freeze drying chamber, a vacuum sensor is installed on one side of the interior of the freeze drying chamber, a vacuum sensor is installed on one side of the heating components, and a temperature sensor is provided on one side of the vacuum sensor; the rotating structure includes a placement plate, a rotating plate, a cover plate, a limiting post, a nut, a rotating disk, and a belt, the rotating disk is installed on the outside of the motor output end, the rotating plate is installed at one end of the interior of the freeze drying chamber, a placement plate is fixed to the front end of the rotating plate, a cover plate is placed on the top of the placement plate, limiting posts are fixed at the four corners of the top of the placement plate, and nuts are installed on the outside of the limiting posts.

[0007] Preferably, a belt is installed on the outer side of the rotating disk, and the belt is connected to a pulley at the rear end of the rotating plate.

[0008] Preferably, the cover plate is provided in two sets, and the two sets of cover plates are arranged at equal intervals at the top of the placement plate.

[0009] Preferably, a placement plate is fixed to one end of the rotating plate, and the rotating plate and the placement plate are welded together.

[0010] Preferably, the limiting posts are symmetrically distributed at the top of the placement plate, and the limiting posts and the nuts form a threaded connection.

[0011] Preferably, the heat dissipation structure includes a fan blade, a worm gear, a worm, and a limiting frame. The limiting frame is fixed to one side of the bottom of the freeze-drying chamber. The fan blade is installed inside the limiting frame. A worm gear is fixed to one end of the fan blade, and a worm is installed at the bottom end of the worm gear.

[0012] Preferably, one end of the worm is fixed to the output end of the motor, and the worm meshes with the worm wheel.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the freeze dryer with circulating cooling function can rotate the food raw materials during use by means of a rotating structure, so that the food raw materials can be rotated during freeze drying, making the freeze drying more uniform and the freeze drying effect better. In addition, the heat dissipation structure can quickly dissipate the heat generated by the circulating freezing components.

[0014] By incorporating a rotating structure, the use of a motor and rotating plate during freeze-drying can drive the cover plate to rotate, making the food raw materials freeze-dry or dry more evenly and resulting in better freeze-drying effects.

[0015] Furthermore, by connecting the nuts and the threaded limit post, the cover plate is pressed onto the placement plate to clamp the food raw materials, making it less likely to fall off during rotation, thus completing the clamping work.

[0016] With its heat dissipation structure, the motor drives the fan blades to rotate through the cooperation of the worm gear and worm wheel when the circulating refrigeration unit is working. This accelerates the airflow around the circulating refrigeration unit, making it more effective at dissipating heat and thus improving the overall cooling efficiency. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 3 This is a frontal cross-sectional view of the present invention.

[0020] Figure 4 This is a front view schematic diagram of the heat dissipation structure of this utility model;

[0021] Figure 5 This is a rear view schematic diagram of the heat dissipation structure of this utility model.

[0022] In the diagram: 1. Freeze-drying chamber; 2. Control panel; 3. Heat dissipation vent; 4. Heat dissipation structure; 401. Fan blade; 402. Worm gear; 403. Worm; 404. Limiting bracket; 5. Motor; 6. Vacuum pump; 7. Rotating structure; 701. Placement plate; 702. Rotating plate; 703. Cover plate; 704. Limiting post; 705. Nut; 706. Rotating disk; 707. Belt; 8. Heating assembly; 9. Vacuum sensor; 10. Temperature sensor; 11. Circulating freezing assembly. Detailed Implementation

[0023] 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.

[0024] This utility model embodiment provides a freeze dryer with a circulating cooling function, such as... Figures 1-5 As shown, the system includes a freeze-drying chamber 1 and a control panel 2. The control panel 2 is installed at the bottom of the front end of the freeze-drying chamber 1. A circulating freezing component 11 is installed at the bottom inside the freeze-drying chamber 1. Heat dissipation vents 3 are provided on both sides of the freeze-drying chamber 1. A vacuum pump 6 is installed at the top of the freeze-drying chamber 1. A heat dissipation structure 4 is provided on one side of the bottom end of the freeze-drying chamber 1. A motor 5 is installed at the rear end of the freeze-drying chamber 1. A rotating structure 7 is provided inside the freeze-drying chamber 1. Heating components 8 are installed on both sides inside the freeze-drying chamber 1. A vacuum sensor 9 is installed on one side of the freeze-drying chamber 1. A temperature sensor 10 is installed on one side of the vacuum sensor 9.

[0025] In a further preferred embodiment of this utility model, such as Figures 1-5 As shown: The rotating structure 7 includes a placement plate 701, a rotating plate 702, a cover plate 703, a limiting post 704, a nut 705, a rotating disk 706, and a belt 707. The rotating disk 706 is installed on the outside of the output end of the motor 5. The rotating plate 702 is installed at one end inside the freeze-drying chamber 1. The placement plate 701 is fixed to the front end of the rotating plate 702. The cover plate 703 is placed on the top of the placement plate 701. The limiting posts 704 are fixed to the four corners of the top of the placement plate 701. A nut 705 is installed on the outside of the limiting post 704. Nut 705, belt 707 is installed on the outside of rotating plate 706, belt 707 is connected to pulley at the rear end of rotating plate 702, cover plate 703 is provided in two sets, the two sets of cover plate 703 are arranged at equal intervals on the top of placement plate 701, placement plate 701 is fixed to one end of rotating plate 702, rotating plate 702 and placement plate 701 are welded together, limiting post 704 is symmetrically distributed on the top of placement plate 701, limiting post 704 and nut 705 are threaded together.

[0026] Specifically, when freeze-drying food raw materials, the food raw materials are placed on top of the placement plate 701. After placement, a cover plate 703 is placed on top of the placement plate 701, and then one layer of food raw materials is placed with one cover plate 703. After all the food raw materials are placed, the nut 705 is installed on top of the limiting post 704. After installation, the nut 705 is rotated. As the nut 705 rotates between itself and the limiting post 704, multiple sets of cover plates 703 are fixed, completing the clamping work of the food raw materials. After the food raw materials are clamped, the external power supply starts the circulating freezing assembly 11. When the circulating freezing assembly 11 is working, it freezes the food raw materials, causing the moisture in the food raw materials to freeze into solid ice quickly, completing the freezing work. The motor 5 is started at the same time as freezing. After starting, motor 5 drives rotating plate 702 to rotate via rotating disk 706 and belt 707. Rotating plate 702 rotates the food raw materials, improving the freezing effect. After freezing, vacuum pump 6 is activated to evacuate the freeze-drying chamber 1, removing internal air and establishing the required low-pressure environment. Under vacuum, solid ice sublimates directly into water vapor, removing moisture from the food raw materials. During vacuuming, heating component 8 is activated to heat the food materials, accelerating the sublimation process of solid ice for drying. Rotating the food raw materials during drying ensures more uniform heating, resulting in better drying. As vacuum pump 6 continues to evacuate, the freeze-drying of the food raw materials is completed.

[0027] In a further preferred embodiment of this utility model, such as Figures 1-5 As shown: The heat dissipation structure 4 includes a fan blade 401, a worm gear 402, a worm 403, and a limiting frame 404. The limiting frame 404 is fixed to one side of the bottom of the freeze-drying chamber 1. The fan blade 401 is installed inside the limiting frame 404. The worm gear 402 is fixed to one end of the fan blade 401. The worm 403 is installed at the bottom of the worm gear 402. One end of the worm 403 is fixed to the output end of the motor 5. The worm 403 and the worm gear 402 mesh with each other.

[0028] Specifically, when the motor 5 starts, it drives the worm gear 403 to rotate. When the worm gear 403 rotates, it drives the worm wheel 402 to rotate. When the worm wheel 402 rotates, it drives the fan blade 401 to rotate, thereby accelerating the airflow around the circulating refrigeration component 11 and making the circulating refrigeration component 11 more effective in heat dissipation, thus completing the heat dissipation work.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A freeze dryer with circulating cooling function, comprising a freeze drying chamber (1) and a control panel (2); Its features are: A control panel (2) is installed at the bottom of the front end of the freeze dryer (1). A circulating freezing component (11) is provided at the bottom of the freeze dryer (1). Heat dissipation vents (3) are provided on both sides of the freeze dryer (1). A vacuum pump (6) is installed at the top of the freeze dryer (1). A heat dissipation structure (4) is provided on one side of the bottom of the freeze dryer (1). A motor (5) is installed at the rear end of the freeze-drying chamber (1). A rotating structure (7) is provided inside the freeze-drying chamber (1). Heating components (8) are installed on both sides inside the freeze-drying chamber (1). A vacuum sensor (9) is installed on one side inside the freeze-drying chamber (1). A vacuum sensor (9) is installed on one side of the heating component (8). A temperature sensor (10) is provided on one side of the vacuum sensor (9). The rotating structure (7) includes a placement plate (701), a rotating plate (702), a cover plate (703), a limiting post (704), a nut (705), a rotating disk (706), and a belt (707). The rotating disk (706) is installed on the outside of the output end of the motor (5). The rotating plate (702) is installed at one end inside the freeze-drying box (1). The front end of the rotating plate (702) is fixed with the placement plate (701). The top of the placement plate (701) is covered with the cover plate (703). The four corners of the top of the placement plate (701) are fixed with limiting posts (704). The outside of the limiting posts (704) is fitted with a nut (705).

2. A freeze dryer with circulating cooling function according to claim 1, characterized in that: A belt (707) is installed on the outside of the rotating disk (706), and the belt (707) is connected to the pulley at the rear end of the rotating plate (702).

3. A freeze dryer with circulating cooling function according to claim 2, characterized in that: The cover plate (703) is provided in two sets, and the two sets of cover plates (703) are arranged at equal intervals at the top of the placement plate (701).

4. A freeze dryer with circulating cooling function according to claim 1, characterized in that: One end of the rotating plate (702) is fixed with a placement plate (701), and the rotating plate (702) and the placement plate (701) are welded together.

5. A freeze dryer with circulating cooling function according to claim 4, characterized in that: The limiting posts (704) are symmetrically distributed at the top of the placement plate (701), and the limiting posts (704) and the nuts (705) form a threaded connection.

6. A freeze dryer with circulating cooling function according to claim 5, characterized in that: The heat dissipation structure (4) includes a fan blade (401), a worm gear (402), a worm (403), and a limiting frame (404). The limiting frame (404) is fixed to one side of the bottom of the freeze-drying box (1). The fan blade (401) is installed inside the limiting frame (404). A worm gear (402) is fixed to one end of the fan blade (401), and a worm (403) is installed at the bottom of the worm gear (402).

7. A freeze dryer with circulating cooling function according to claim 6, characterized in that: One end of the worm (403) is fixed to the output end of the motor (5), and the worm (403) meshes with the worm wheel (402).

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