Food freezing device capable of removing peculiar smell
By using a combination of activated carbon filter plates and negative ion generators in the freezing unit, the odor problem of the freezing unit is solved, creating a healthy and fresh food storage environment that inhibits bacterial growth and removes odors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN BOSHUANG IND CO LTD
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-05
AI Technical Summary
Existing freezing equipment is prone to bacterial growth after prolonged use, leading to food spoilage and unpleasant odors, which cannot be effectively removed by current technology.
The design combines activated carbon filter plates and negative ion generators. A centrifugal fan is used to create air circulation. The activated carbon filter plates initially remove odors, and then the negative ion generator neutralizes positively charged particles in the air, inhibiting bacterial growth and further removing odors.
It provides a healthier and fresher food storage environment, effectively removes odors, inhibits bacterial growth, and maintains the original quality of food.
Smart Images

Figure CN224201957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food freezing technology, specifically to a food freezing device for removing odors. Background Technology
[0002] A freezing device is an auxiliary device that uses modern freezing technology to lower the temperature of food to a temperature below its freezing point in the shortest possible time, so that most of the water contained in the food forms reasonable tiny ice crystals as the internal heat dissipates, thereby maximizing the preservation of the food's original natural quality.
[0003] Currently, in order to extend the storage time of food, people often put food in freezers for storage. Although this can provide a low-temperature environment for food, bacteria will still grow over time, and the food will spoil. Bacteria decompose food and produce metabolites that produce odors. As a result, when the food is taken out, other foods in the freezer will also have an unpleasant smell, and current technology cannot remove this odor. Utility Model Content
[0004] This invention provides a food freezing device for removing odors, in order to solve the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a food freezing device for removing odors, comprising a shell, a central storage compartment inside the shell, and a freezing box installed inside the central storage compartment. The freezing box has an air inlet slot and a circulating air slot on its left and right sides respectively, and an activated carbon filter plate is installed in the circulating air slot. A semiconductor cooling chip is attached to the bottom of the freezing box, and a heat sink is attached to the heating surface of the semiconductor cooling chip. A cooling fan is installed on the heat dissipation surface of the heat sink. A control mainboard, a centrifugal fan, and a negative ion generator are respectively installed inside the shell. The air inlet of the centrifugal fan is connected to the circulating air slot through a pipe, and its air outlet is connected to the negative ion generator through a pipe. The air outlet of the negative ion generator is connected to the air inlet slot through a pipe. The semiconductor cooling chip, the cooling fan, the centrifugal fan, and the negative ion generator are electrically connected to the control mainboard. A top cover is snapped onto the top of the shell.
[0006] Furthermore, the front and rear side walls of the intermediate placement compartment are provided with ventilation cavities, which extend outside the outer shell, and a filter screen is installed inside the ventilation cavity.
[0007] Furthermore, the bottom of the intermediate placement compartment is provided with heat dissipation holes, and the cooling fan is located corresponding to the position of the heat dissipation holes.
[0008] Furthermore, the control motherboard, centrifugal fan, and negative ion generator are located between the intermediate placement chamber and the outer shell, respectively.
[0009] Furthermore, a touch screen is embedded in the side wall of the housing, and the touch screen is electrically connected to the control motherboard.
[0010] Furthermore, a sealing ring is installed at the lower part of the top cover, and the sealing ring is located between the top cover and the outer shell.
[0011] Compared with the prior art, this utility model provides a food freezing device for removing odors, which has the following features:
[0012] Beneficial effects:
[0013] This odor-removing food freezing device uses a centrifugal fan to generate airflow, which is drawn into the freezing box through a self-circulating air duct and an air inlet duct to form a circulation. Under the powerful adsorption and filtration of the activated carbon filter plate, odors in the air can be initially removed. Then, the negative ion generator can neutralize the positively charged particles in the air, thereby inhibiting bacterial growth and removing odors, providing a healthier and fresher storage environment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the present invention;
[0016] Figure 3 This is a partial top view of the present invention.
[0017] In the diagram: 1. Outer shell; 2. Middle compartment; 3. Freezer box; 4. Air inlet duct; 5. Circulating air duct; 6. Activated carbon filter plate; 7. Semiconductor cooling chip; 8. Heat sink; 9. Cooling fan; 10. Control board; 11. Centrifugal fan; 12. Negative ion generator; 13. Top cover; 14. Ventilation cavity; 15. Filter screen; 16. Heat dissipation holes; 17. Touch screen; 18. Sealing ring. Detailed Implementation
[0018] 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.
[0019] Please see Figures 1-3This utility model discloses a food freezing device for removing odors, including a shell 1. The shell 1 has a central storage compartment 2, and a freezing box 3 is installed inside the central storage compartment 2. Air inlet slots 4 and circulating air slots 5 are correspondingly provided on the left and right sides of the freezing box 3. An activated carbon filter plate 6 is installed in the circulating air slot 5. A semiconductor cooling chip 7 is attached to the bottom of the freezing box 3, and a heat sink 8 is attached to the heating surface of the semiconductor cooling chip 7. A cooling fan 9 is installed on the heat dissipation surface of the heat sink 8. A control main board 10, a centrifugal fan 11, and a negative ion generator 12 are respectively installed inside the shell 1. The air inlet of the centrifugal fan 11 is connected to the circulating air slot 5 through a pipe, and its air outlet is connected to... The negative ion generator 12 is connected to the air inlet slot 4 through a pipe. The centrifugal fan 11 generates airflow, and the air in the refrigeration box 3 is drawn into the self-circulating air slot 5 and the air inlet slot 4 to form a circulation. Under the strong adsorption and filtration of the activated carbon filter plate 6, the odor in the air can be initially removed. Then, the negative ion generator 12 can neutralize the positively charged particles in the air, thereby inhibiting bacterial growth and removing odors, providing a healthier and fresher storage environment. The semiconductor cooling chip 7, the cooling fan 9, the centrifugal fan 11 and the negative ion generator 12 are electrically connected to the control motherboard 10. The top cover 13 is snapped onto the top of the outer shell 1.
[0020] Specifically, the front and rear side walls of the intermediate placement compartment 2 are provided with ventilation chambers 14, and the ventilation chambers 14 extend outside the outer shell 1. A filter screen 15 is installed inside the ventilation chambers 14.
[0021] In this embodiment, when the cooling fan 9 is working, the ventilation cavity 14 is mainly used to introduce external air, thereby forming air convection for heat dissipation.
[0022] Specifically, the bottom of the intermediate placement compartment 2 is provided with heat dissipation holes 16, and the cooling fan 9 is located at the position of the heat dissipation holes 16.
[0023] In this embodiment, when the thermoelectric cooler 7 is cooled, its heating surface conducts heat to the heat sink 8, and under the action of the cooling fan 9, the heat on the heat sink 8 is discharged to the outside through the heat dissipation hole 16.
[0024] Specifically, the control motherboard 10, centrifugal fan 11, and negative ion generator 12 are located between the intermediate placement chamber 2 and the outer shell 1, respectively.
[0025] In this implementation scheme, the control motherboard 10 is an intelligent circuit board, mainly used for controlling and automating the management of various devices or systems. The centrifugal fan 11 is used for ventilation. The main principle of the negative ion generator 12 in removing odors is to release negative ions to neutralize odor molecules in the air, thereby achieving the effect of purifying the air. Specifically, negative ions are generated through high-voltage electric fields or water droplet ionization. These negative ions combine with positively charged odor molecules in the air to form larger particles, thereby increasing their weight and causing them to settle or be filtered out. In addition, negative ions can also remove odor molecules through electrostatic adsorption and chemical reactions, decomposing them into harmless substances such as carbon dioxide and water.
[0026] Specifically, a touch screen 17 is embedded in the side wall of the outer casing 1, and the touch screen 17 is electrically connected to the control motherboard 10.
[0027] In this implementation scheme, the touch screen 17 can perform various functions through touch operation, thereby replacing the traditional mechanical button panel. This design not only simplifies the operation process, but also makes the device more beautiful and modern.
[0028] Specifically, a sealing ring 18 is installed on the lower part of the top cover 13, and the sealing ring 18 is located between the top cover 13 and the outer shell 1.
[0029] In this embodiment, the sealing ring 18 is a device for preventing liquid or gas leakage, typically made of an elastic material, and has a sealing function.
[0030] When in use, the centrifugal fan 11 generates airflow, and the self-circulating air duct 5 and the air inlet duct 4 draw air from the freezer box 3 to form a circulation. Under the strong adsorption and filtration of the activated carbon filter plate 6, odors in the air can be initially removed. Then, the negative ion generator 12 can neutralize the positively charged particles in the air, thereby inhibiting bacterial growth and removing odors, providing a healthier and fresher storage environment.
[0031] In summary, this odor-removing food freezing device utilizes a centrifugal fan 11 to generate airflow, which is then drawn into the freezing box 3 through the self-circulating air duct 5 and the air inlet duct 4 to form a circulation. Under the powerful adsorption and filtration effect of the activated carbon filter plate 6, odors in the air can be initially removed. Then, the negative ion generator 12 can neutralize positively charged particles in the air, thereby inhibiting bacterial growth and removing odors, providing a healthier and fresher storage environment.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A food freezing device for removing odors, comprising a housing (1), characterized in that: The outer casing (1) has a middle placement compartment (2), and a freezing box (3) is installed in the middle placement compartment (2). Air inlet slots (4) and circulating air slots (5) are provided on the left and right sides of the freezing box (3). An activated carbon filter plate (6) is installed in the circulating air slot (5). A semiconductor cooling chip (7) is attached to the bottom of the freezing box (3), and a heat sink (8) is attached to the heating surface of the semiconductor cooling chip (7). A cooling fan (9) is installed on the heat dissipation surface of the heat sink (8). A control mainboard (…) is installed inside the outer casing (1). 10) Centrifugal fan (11) and negative ion generator (12). The air inlet of the centrifugal fan (11) is connected to the circulating air trough (5) through a pipe, and its air outlet is connected to the negative ion generator (12) through a pipe. The air outlet of the negative ion generator (12) is connected to the air inlet trough (4) through a pipe. The semiconductor cooling chip (7), cooling fan (9), centrifugal fan (11) and negative ion generator (12) are electrically connected to the control main board (10) respectively. The top cover (13) is snapped onto the top of the outer shell (1).
2. The food freezing device for removing odors according to claim 1, characterized in that: The front and rear side walls of the intermediate placement compartment (2) are provided with ventilation chambers (14), and the ventilation chambers (14) extend outside the outer shell (1). A filter screen (15) is installed inside the ventilation chambers (14).
3. The food freezing device for removing odors according to claim 1, characterized in that: The bottom of the intermediate placement compartment (2) is provided with heat dissipation holes (16), and the cooling fan (9) is located at the position of the heat dissipation holes (16).
4. The food freezing device for removing odors according to claim 1, characterized in that: The control board (10), centrifugal fan (11) and negative ion generator (12) are located between the intermediate placement chamber (2) and the outer shell (1), respectively.
5. The food freezing device for removing odors according to claim 1, characterized in that: A touch screen (17) is embedded in the side wall of the outer casing (1), and the touch screen (17) is electrically connected to the control motherboard (10).
6. The food freezing apparatus for removing odors according to claim 1, characterized in that: A sealing ring (18) is installed on the lower part of the top cover (13), and the sealing ring (18) is located between the top cover (13) and the outer shell (1).