A low-sugar biscuit baking device
By incorporating an exhaust fan and HEPA filter into the oven, the problem of smoke dispersion is solved, achieving effective smoke filtration and uniform heating, thus improving the oven's safety and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BIBIZAN (SHANDONG) FOOD CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-08-04
AI Technical Summary
Existing ovens emit smoke during cookie making, affecting air quality and health, and have failed to effectively address the smoke problem.
A low-sugar cookie baking device was designed, equipped with an exhaust fan and a HEPA filter. The exhaust fan absorbs smoke, which is then filtered by the HEPA filter. Combined with the motor-driven rotation of the baking pan and symmetrical heat dissipation holes, uniform heating and smoke treatment are achieved.
It achieves effective filtration and exhaust of smoke, reducing harm to people and equipment, while ensuring even baking and safety, and improving the stability and lifespan of the oven.
Smart Images

Figure CN224584063U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a baking device for low-sugar biscuits, belonging to the field of baking technology. Background Technology
[0002] An oven is an essential piece of equipment for making cookies. It achieves independent control of the upper and lower heating elements through a layout of four heating elements. These elements rapidly heat the surface of the food through radiation, initiating the Maillard reaction, while the interior gradually cooks the cookies through heat conduction. Baking involves three heat transfer methods: radiation, convection, and conduction, with radiation being the dominant method. One of the key advantages of modern ovens lies in their precise heating element layout. This design allows for independent and accurate temperature control of the upper and lower parts of the oven. Two heating elements are precisely positioned in the upper part of the baking cavity, responsible for the "upper heat," while the other two are strategically placed at the bottom of the cavity, handling the "lower heat." This zoned layout gives bakers great flexibility, allowing them to finely adjust the heating intensity of the upper and lower areas according to the cookie recipe and desired effect, such as browning the top or crisping the bottom.
[0003] Patent document CN206478696U discloses a high-efficiency and energy-saving microwave oven, which "includes an inner cavity and a fan. The inner cavity has a cooking cavity with an opening on the front side. The inner cavity includes a rear wall opposite to the opening. The fan is located on the outer side of the rear wall, which has an air inlet and an air outlet. Under the action of the fan, air in the cooking cavity can flow out of the cooking cavity through the air outlet and flow back into the cooking cavity through the air inlet. The air outlet is located in the central area of the rear wall, and the air inlet is located around the air outlet. The ratio of the total area A of the air inlet to the total area B of the air outlet is 3:5 to 4:5. Since the total area of the air inlet is smaller than the total area of the air outlet, the air pressure in the air inlet is greater, so the air entering the cooking cavity can be blown further, that is, it will be blown to the front side of the cooking cavity. Thus, the air on both the front and back sides of the cooking cavity can participate in the circulation, achieving efficient heat transfer and making the temperature on both the front and back sides of the cooking cavity more uniform."
[0004] However, the ovens currently available in the aforementioned literature mainly consider the heat issue but do not take into account the smoke generated by residues during the cookie making process. If the smoke is not treated, it will drift into the outside world and affect the surrounding air quality, and may even lead to an unsanitary environment or affect the health of the operators. Therefore, it is necessary to develop a baking device for low-sugar cookies that can achieve uniform heating and smokeless oven. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a baking device for low-sugar biscuits, which can treat the smoke and prevent it from drifting into the outside world and affecting the surrounding air quality, or even causing environmental unsanitary conditions or affecting the health of operators.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a baking device for low-sugar biscuits, comprising a box body, an inner cavity, and a door. The inner cavity is provided inside the box body. A rear box is fixedly connected to the rear side of the box body, and an exhaust fan is fixedly connected to the rear box. A HEPA filter is fixedly installed behind the exhaust fan. The rear box has a cover plate for sealing, and the cover plate is removable by screws. Preferably, a baking tray is provided on the bottom wall of the inner cavity. A bottom box part is fixedly connected to the bottom of the box body, and a motor is fixedly installed inside. The motor is connected to the baking tray via a shaft. Preferably, a set of symmetrical heat dissipation holes is provided on the left and right side walls of the box body, and an electronic screen is fixedly installed on the front panel of the box body for displaying the device's operating status and operation interface.
[0007] Preferably, the front area of the enclosure is hinged to a door, which closes the front opening of the enclosure. A handrail is fixedly installed on the outer surface of the door, facilitating the user's opening and closing of the door. Preferably, the rear shell of the enclosure has a smoke vent. The rear enclosure is provided with a smoke exhaust port, which forms the main channel for smoke exhaust, ensuring smooth exhaust of smoke from inside the equipment and meeting its heat dissipation requirements.
[0008] Preferably, four symmetrically distributed support columns are fixedly installed at the bottom of the enclosure. These support columns provide stable support for the equipment and facilitate heat dissipation from the bottom. Heating elements are integrated into the inner walls of both the top and bottom of the enclosure.
[0009] Beneficial effects:
[0010] 1. This utility model solves the problem of smoke emitted from residues after secondary use by installing a smoke exhaust fan, thereby reducing harm to the human body. After the smoke exhaust fan is installed at the predetermined installation location in the oven, the exhaust fan starts to operate at the same time to remove the smoke emitted by the residues at high temperatures. The smoke is drawn out through the internal smoke vent to the back of the oven, then filtered through the installed HEPA filter and discharged through the smoke outlet of the rear chamber, thus achieving harmless removal and reducing harm to the human body and the oven.
[0011] 2. This utility model achieves uniform heating by installing a motor to make the baking tray rotate. After the bottom box is installed at the predetermined installation location, the motor is installed inside the bottom box. The motor is connected to the baking tray through a shaft, so that the baking tray rotates on its own during baking in the oven. At the same time, heat dissipation vents are installed on both sides of the box. The heat dissipation vents and the baking tray work together to achieve uniform heating, thereby improving the taste of the cookies. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main side of the present invention;
[0013] Figure 2This is a schematic diagram of the rear structure of the present invention;
[0014] Figure 3 This is a schematic diagram of the structure of the electric heating element of this utility model;
[0015] Figure 4 This is a structural schematic diagram on the right side of the present invention;
[0016] Figure 5 This is a schematic diagram of the structure of the exhaust fan of this utility model;
[0017] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Baking tray; 4. Handrail; 5. Support column; 6. Electronic screen; 7. Screws; 8. Bottom box; 9. Rear box; 10. Motor; 11. Heating element; 12. Heat dissipation hole; 13. HEPA filter; 14. Exhaust fan; 15. Inner cavity; 16. Smoke vent; 17. Cover plate. 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] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Please see Figures 1-5As shown, a baking device for low-sugar biscuits, as a technical optimization of this utility model, includes: a baking device for low-sugar biscuits, comprising a box body 1, an inner cavity 15, and a box door 2. The inner cavity 15 is provided inside the box body 1. A rear box 9 is fixedly connected to the rear side of the box body 1. An exhaust fan 14 is fixedly connected to the rear box 9. A HEPA filter 13 is fixedly installed behind the exhaust fan 14. The rear box 9 is sealed with a cover plate 17, and the cover plate 17 is removable by screws 7.
[0022] By installing the rear chamber 9 in the predetermined position on the cabinet 1, when the user presses the start button, the exhaust fan 14 inside the rear chamber 9 begins to rotate, absorbing the smoke generated by the residue. The smoke is drawn out through the smoke inlet inside the cabinet 1, then filtered by the HEPA filter 13 to remove harmful substances, and finally expelled through the ventilation holes 12 of the rear chamber 9, thereby reducing harm to the oven or the human body. Simultaneously, if the oven produces smoke due to prolonged use or damage, the exhaust fan 14 and HEPA filter 13 can also reduce harm to the human body. Furthermore, the HEPA filter 13 can be replaced via screw 7 at the rear of the rear chamber 9, allowing for regular replacement of the HEPA filter 13 for better smoke filtration.
[0023] Furthermore, a baking tray 3 is provided on the bottom wall of the inner cavity 15, and a bottom box 8 is fixedly connected to the bottom of the box body 1. A motor 10 is fixedly provided inside, and the motor 10 is connected to the baking tray 3 through a shaft.
[0024] A set of symmetrical heat dissipation holes 12 are provided on the left and right side walls of the enclosure 1, and an electronic screen 6 is fixed on the front panel of the enclosure 1 to display the operating status of the equipment and the operation interface.
[0025] The front area of the box body 1 is hinged to a door 2, which is used to close the front opening of the box body 1. A handrail 4 is fixedly installed on the outer surface of the door 2, which facilitates the user to open and close the door 2.
[0026] Once the installation position of the bottom chamber 8 is determined, when the oven starts working, the motor 10 inside the bottom chamber 8 rotates the baking tray 3 at a uniform speed via a shaft, thereby ensuring even heating of the cookies and preventing localized overheating, thus improving baking quality. Simultaneously, to effectively manage the high internal temperatures generated during oven operation, a set of symmetrical heat dissipation holes 12 are located on the left and right side walls of the inner cavity 15. These symmetrically arranged heat dissipation holes 12 activate synchronously during oven operation, significantly reducing the operating temperature of the oven body 1 and the inner cavity 15, thereby effectively reducing heat conduction to the frame of the oven body 1. This temperature management greatly improves the stability, reliability, and safety of the oven's operation, extends the service life of key components, and improves the safety of the user's operating environment, preventing burns from overheating of the outer shell.
[0027] Furthermore, a smoke vent is provided on the rear shell of the housing 1. The rear housing 9 is provided with a smoke exhaust port 16, which constitutes the main channel for smoke exhaust, ensuring smooth exhaust of smoke and meeting heat dissipation requirements.
[0028] Four symmetrically distributed support columns 5 are fixedly installed at the bottom of the housing 1. The support columns 5 are used for stable support of the equipment and bottom heat dissipation. Electric heating elements 11 are integrated on the inner walls of the top and bottom of the housing 1.
[0029] The front area of the oven body 1 features a centralized design for user interaction: the oven door 2 is connected to the oven body 1 via hinges and is used to open and close to seal or open the inner cavity 15. The oven door 2 integrates an ergonomically designed handle 4, providing users with a stable and comfortable point of leverage for easy and safe opening or closing. The heating elements 11, as the core source of the oven's heat energy, are precisely arranged in two sets on the upper and lower side walls inside the inner cavity 15, forming a strictly symmetrical layout. This symmetrical heating design is crucial, as it creates a balanced three-dimensional heat field within the inner cavity 15.
[0030] Working principle: Once the bottom chamber 8 is positioned correctly, when the oven starts operating, the motor 10 inside the bottom chamber 8 rotates the baking tray 3 at a uniform speed via a shaft, ensuring even heating of the cookies and preventing localized overheating, thus improving baking quality. Simultaneously, to effectively manage the high internal temperatures generated during oven operation, a set of symmetrical heat dissipation holes 12 are located on the left and right side walls of the inner cavity 15. These symmetrically arranged heat dissipation holes 12 activate synchronously during oven operation, significantly reducing the operating temperature of the chamber 1 and the inner cavity 15, thereby effectively reducing heat conduction to the frame of the chamber 1. This temperature management greatly improves the stability, reliability, and safety of the oven's operation, extends the service life of key components, and improves the safety of the user's operating environment, preventing burns from overheating of the outer shell.
[0031] By installing the rear chamber 9 in the predetermined position on the cabinet 1, when the user presses the start button, the exhaust fan 14 inside the rear chamber 9 starts to rotate and absorb the smoke generated by the residue. The smoke is drawn out from the smoke hole inside the inner cavity 15, and then filtered out harmful substances through the HEPA filter 13 before being discharged through the heat dissipation hole 12 of the rear chamber 9, thereby reducing damage to the oven or the human body. At the same time, if the oven is used for a long time or is damaged, it will also produce smoke. The exhaust fan 14 and the HEPA filter 13 can also reduce the harm to the human body. In addition, the HEPA filter 13 can be replaced at the rear of the rear chamber 9 through the screw 7. Regularly replacing the HEPA filter 13 will further improve the filtration of smoke.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A low-sugar biscuit baking device comprising a cabinet (1), an inner cavity (15) and a cabinet door (2), characterized in that: The box (1) has an inner cavity (15) inside. A rear box (9) is fixedly connected to the rear side of the box (1). A smoke exhaust fan (14) is fixedly connected to the rear box (9). A HEPA filter (13) is fixedly installed behind the smoke exhaust fan (14). The rear box (9) is sealed with a cover plate (17), and the cover plate (17) is removable by screws (7).
2. The low sugar biscuit baking apparatus as claimed in claim 1, wherein: The bottom wall of the inner cavity (15) is provided with a baking tray (3), and the bottom of the box body (1) is fixedly connected with a bottom box part (8). A motor (10) is fixedly provided inside, and the motor (10) is connected to the baking tray (3) through a shaft.
3. The low sugar biscuit baking apparatus as claimed in claim 2, wherein: The box (1) has a set of symmetrical heat dissipation holes (12) on the left and right side walls, and an electronic screen (6) is fixed on the front panel of the box (1) for displaying the device's operating status and operation interface.
4. The low-sugar cookie baking apparatus of claim 3, wherein: The front area of the box (1) is hinged to a door (2), which is used to close the front opening of the box (1). A handrail (4) is fixedly installed on the outer surface of the door (2), which facilitates the user to open and close the door (2).
5. A low sugar biscuit baking apparatus as claimed in claim 4, wherein: The rear shell of the box (1) is provided with a smoke vent, and the rear box (9) is provided with a smoke exhaust hole (16). The smoke exhaust hole (16) constitutes the main channel for exhausting smoke, which is used to ensure the smooth exhaust of smoke and meet the heat dissipation requirements.
6. The apparatus for baking low sugar cookies as claimed in claim 1, wherein: The bottom of the box (1) is fixedly equipped with four symmetrically distributed support columns (5). The support columns (5) are used for stable support of the equipment and bottom heat dissipation. The top inner wall and bottom inner wall of the inner cavity (15) are both equipped with electric heating elements (11).