Electromagnetic oven
By using electromagnetic induction heating technology and spiral grilled racks in the oven, the safety hazards of the gas grill and the low thermal utilization of the electric heating tube oven are solved, and the efficient, uniform and safe heating effect is achieved.
Patent Information
- Application Number
- CN202421104348.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-20
AI Technical Summary
Existing gas ovens have harmful substance emissions and safety hazards, and the electric heating tube oven has low heat utilization rate and uneven heating.
Electromagnetic heating coils and electromagnetic induction materials are used to combine the spiral grill and vibration motor to achieve efficient and uniform heating through electromagnetic heating inverters.
Improved electricity conversion efficiency, exceeding 90%, reducing the waste of electricity, ensuring the safety and uniformity of heating, and avoiding harmful substance emissions.
Smart Images
Figure CN222396808U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of food processing, and more specifically, to an electromagnetic oven. Background Art
[0002] At present, natural gas ovens occupy a prominent position in the mainstream oven technology on the market. This type of oven uses natural gas or liquefied petroleum gas as fuel, and generates high-temperature heat by burning these gases to bake and roast food. However, we must face up to the potential safety risks brought by natural gas and liquefied petroleum gas. They are flammable and explosive. Once leaked or improperly operated, they are very likely to cause fire or explosion accidents, posing a huge threat to personnel safety and property.
[0003] What is more serious is that these gases will produce a series of toxic and harmful substances during the combustion process. Heavy metals such as arsenic, mercury, chromium, lead, etc., as well as sulfides such as sulfur dioxide and hydrogen sulfide, these harmful substances will not only pollute the environment, but also directly contaminate the baked food. Long-term intake of these pollutants will have adverse effects on consumers' health and may even cause serious health problems.
[0004] At the same time, electric heating tube ovens are an alternative solution. They use electric heating tubes as heating elements. Although this solves the safety problem to a certain extent, since the electric heating tubes use resistance wires for heating, the electric-heat conversion efficiency is low. The electric-heat conversion efficiency is generally between 60% and 80%, which wastes electricity and leads to low thermal utilization of this oven.
[0005] In addition, electric heating tube ovens also have the defect of uneven heating, which limits their application. Electric heating tube ovens mainly bake food through convection heat transfer and radiation heat transfer. Compared with the traditional fire-baked sesame cake making process, this method is difficult to achieve the ideal baking effect. Therefore, although electric heating tube ovens have their advantages, their effects are not satisfactory in certain specific fields, such as traditional sesame cake making.
[0006] Although the existing oven technologies on the market have their own characteristics, they all have obvious shortcomings. The heating efficiency of electric heating tubes is low, at least two sets of heating tubes are required, and the power consumption is greatly increased, which is not conducive to energy conservation and emission reduction. In order to meet consumers' demand for safe, healthy and efficient ovens, it is necessary for us to explore more advanced and more complete oven technologies to achieve the coexistence of safety and deliciousness of baked food. Utility Model Content
[0007] The technical problem to be solved by the present application is an electromagnetic oven, which is used to solve the technical problems that the existing gas ovens produce harmful substances that endanger health and the electric heating tube ovens have low heat utilization and uneven heating.
[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0009] An electromagnetic oven comprises an oven shell, the side walls of the oven shell being heating walls, electromagnetic induction heating coils being wound around the heating walls, and a placement device for placing food to be baked being arranged in the oven shell, the placement device being made of electromagnetic induction material.
[0010] Furthermore, a feed port is provided on the top of the furnace shell, a discharge port is provided on the furnace shell, a cover is provided on the feed port, an edge of the cover is hinged to the furnace shell, and a handle is provided on the cover.
[0011] Furthermore, the placement device is a baking tray arranged in the furnace shell, a motor is arranged at the bottom of the furnace shell, the discharge port is arranged on the side wall of the furnace shell, the discharge port corresponds to the top surface of the baking tray, a vertical first rotating shaft is fixedly connected to the baking tray, and the motor is transmission-connected to the first rotating shaft.
[0012] Furthermore, a baffle is fixedly provided on the inner side of the heating wall, the baffle is located above the baking tray, the lower end of the baffle is against the baking tray, and the baffle corresponds to the position of the discharge port.
[0013] Furthermore, the storage device is a spiral grill arranged in the furnace shell, a vibration shaft is fixedly connected to the center of the spiral grill, a motor connected to the vibration shaft is arranged on the furnace shell, the motor is a vibration motor, the discharge port is arranged at the bottom of the furnace shell, the discharge port corresponds to the lower end of the spiral grill, a baking plate is fixedly arranged on the top of the furnace shell, the baking plate is made of electromagnetic induction material, and an inlet corresponding to the top position of the spiral grill is provided on the baking plate.
[0014] Furthermore, a ball bearing is provided on the spiral grill, and the ball bearing is connected to the spiral grill in a damping rotation manner.
[0015] Furthermore, a limiting plate is provided on the spiral grill.
[0016] Furthermore, an electromagnetic heating frequency converter is provided on the furnace shell, the electromagnetic heating frequency converter is electrically connected to the electromagnetic induction heating coil, and an insulation layer is provided between the heating wall and the electromagnetic induction heating coil.
[0017] Furthermore, a temperature control probe is provided in the heating wall, and the temperature control probe is electrically connected to the electromagnetic heating frequency converter.
[0018] The positive effects of the utility model are:
[0019] 1. The utility model is provided with a furnace shell, and an electromagnetic induction heating coil is wound on the side wall of the furnace shell. A storage device is placed in the furnace shell. The electromagnetic induction heating coil heats the food placed on the storage device by electromagnetic heating, so the electric heat conversion efficiency is very high, and the electric heat conversion efficiency exceeds 90%, which saves electric energy and improves energy efficiency.
[0020] 2. The utility model adopts electromagnetic heating, which will not produce open flames during the heating process, thus greatly reducing the risk of fire or explosion. At the same time, electromagnetic heating itself does not produce harmful gases or substances, thus ensuring the safety of baked food and the friendliness of the working environment.
[0021] 3. The utility model is provided with an electromagnetic heating inverter, which controls the frequency of the current flowing through the electromagnetic induction heating coil, thereby achieving more uniform and efficient heating, overcoming the defect of uneven heating of the electric heating tube oven, making the baked food heated more evenly, and more in line with the requirements of traditional baking technology.
[0022] 4. A spiral grill is provided in the oven shell, which is driven by a vibration motor to vibrate. The spiral grill increases the moving time of the food in the oven shell, so that the food is heated more evenly inside and outside. When the spiral grill vibrates, the food moves along the spiral grill to the discharge port under the action of its own gravity. By adjusting the vibration frequency of the vibration motor, the speed of the food moving along the spiral grill can be achieved, thereby adjusting the baking time of the baked food in the oven.
[0023] 5. A temperature control probe is also provided inside the heating wall, and the temperature control probe is electrically connected to the electromagnetic heating inverter, so that the output power of the electromagnetic induction heating coil can be controlled through the electromagnetic heating inverter according to the actual temperature required for the baking operation, or the start and stop of the electromagnetic heating inverter can be automatically controlled, thereby achieving more precise control of the baking temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.
[0025] Figure 1 This is a schematic diagram of the appearance of Example 1;
[0026] Figure 2 for Figure 1 Cross-sectional view of the middle BB area;
[0027] Figure 3This is a schematic diagram of the appearance of Example 2;
[0028] Figure 4 for Figure 3 Cross-section of the middle AA area;
[0029] Reference numerals
[0030] 1. Furnace shell; 2. Heating wall; 3. Electromagnetic induction heating coil; 4. Insulation layer; 5. Electromagnetic heating inverter; 6. Cover; 7. Handle; 8. Motor; 9. First rotating shaft; 10. Second rotating shaft; 11. Baking tray; 12. Baffle; 13. Discharge port; 14. Ball bearing; 15. Spiral grill; 16. Limit plate; 17. Baking plate; 18. Mounting seat. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0032] Example 1
[0033] like Figure 1 and Figure 2 As shown, an electromagnetic oven comprises a vertical cylindrical oven shell 1, the inner side wall of the oven shell 1 is a heating wall 2, an electromagnetic induction heating coil 3 is wound around the heating wall 2, a placing device for placing food to be baked is arranged inside the oven shell 1, and the placing device is made of electromagnetic induction material, such as iron. The oven shell 1 is made of non-magnetic material, such as heat-resistant ceramics and heat-resistant glass.
[0034] The furnace shell 1 has a feed port at the top, a discharge port 13 at the furnace shell 1 , a cover 6 at the feed port, an edge of the cover 6 is hinged to the top of the furnace shell 1 , and a handle 7 is provided on the side of the cover 6 .
[0035] The storage device is a circular baking tray 11 horizontally arranged in the furnace shell 1, the bottom of the furnace shell 1 is blocked, a motor 8 is arranged at the bottom of the furnace shell 1, the discharge port 13 is arranged on the side wall of the furnace shell 1, and the discharge port 13 corresponds to the top surface of the baking tray 11. A vertical first rotating shaft 9 is fixedly connected to the center of the baking tray 11, and the first rotating shaft 9 is connected to the bottom of the furnace shell 1 through rotation, and the motor 8 is connected to the bottom of the first rotating shaft 9 through a coupling. An L-shaped mounting seat 18 is fixedly arranged at the bottom of the furnace shell 1, and the motor 8 is fixedly connected to the mounting seat 18.
[0036] A strip-shaped baffle 12 is fixedly provided on the inner side of the heating wall 2. The baffle 21 is radially arranged along the baking tray 11. The baffle 12 is located above the baking tray 11. The lower end of the baffle 12 abuts against the top surface of the baking tray 11. The outer end of the baffle 12 corresponds to the position of the discharge port 13.
[0037] In this embodiment, the working process of the utility model is:
[0038] The food to be baked is placed on the baking tray 11, and the electromagnetic induction heating coil 3 is energized to heat the food placed on the baking tray 11. When the food is baked, the motor 8 drives the baking tray 11 to rotate, and the food on the baking tray 11 rotates around the center of the baking tray 11. When the food rotates to the baffle 12, the food is pushed into the discharge port 13 under the guidance of the baffle 12, and then sent to the outside of the furnace shell 1.
[0039] Since the electromagnetic induction heating coil 3 of the utility model heats the food by electromagnetic heating, the electric heat conversion efficiency is very high, and the efficiency of electric heat conversion exceeds 90%, thereby saving electric energy and improving energy efficiency. The utility model avoids the use of flammable and explosive natural gas or liquefied petroleum gas, and no open flame is generated during the heating process, thereby greatly reducing the risk of fire or explosion, and making it safer to use. At the same time, electromagnetic heating itself does not produce harmful gases or substances, thereby ensuring the safety of baked food and the friendliness of the working environment.
[0040] The resistive heating requires at least two sets of heating units to complete the two operations of baking and roasting. However, the utility model adopts electromagnetic induction heating, which only requires one set of heating units to complete the two operations of baking and roasting, thus simplifying the structure of the electromagnetic oven and avoiding the waste of electric energy.
[0041] Example 2
[0042] like Figure 3 and Figure 4 As shown, the difference between this embodiment and embodiment 1 is that:
[0043] The storage device is a spiral grill 15 arranged in the furnace shell 1, and a vibration shaft 10 is fixedly connected to the center of the spiral grill 15. A motor 8 connected to the vibration shaft 10 is arranged on the furnace shell 1, and the motor is a vibration motor. The discharge port 13 is arranged at the bottom of the furnace shell 1, and the discharge port 13 corresponds to the lower end of the spiral grill 15. A baking plate 17 is fixedly arranged at the top of the furnace shell 1, and the baking plate 17 is made of electromagnetic induction material. The baking plate 17 is provided with an inlet corresponding to the top position of the spiral grill 15.
[0044] The top of the spiral grill 15 is provided with balls 14 , and the balls 14 are arranged in a plurality of rows along the top surface of the spiral grill 15 . The balls 14 are all connected to the spiral grill 15 in a damped rotation manner.
[0045] When the utility model is in operation, the food to be baked is put in from the inlet on the baking plate 17 and falls onto the spiral grill 15. The motor 8 drives the spiral grill 15 to vibrate through the vibration shaft 10, and the food moves from top to bottom along the balls 14 on the spiral grill 15 under the action of its own gravity, and finally falls from the discharge port 13. By adjusting the vibration amplitude and vibration frequency of the motor 8, the descending speed of the food on the spiral grill 15 can be controlled, so that the baking time of the food can be controlled.
[0046] A spiral limiting plate 16 is welded to the inner side of the spiral grill 15 .
[0047] The limiting plate 16 can prevent the food being baked from approaching the vibration shaft 10, so that the food moves along the outer side of the spiral grill 15, thereby achieving the maximum movement distance and movement time of the food to the discharge port 13. When the spiral grill 15 vibrates, the food can be evenly distributed on the baking tray 11, further improving the uniformity of baking.
[0048] Example 3
[0049] The difference between this embodiment and embodiment 1 is that:
[0050] The furnace shell 1 is provided with an electromagnetic heating frequency converter 5 , which is electrically connected to the electromagnetic induction heating coil 3 , and a heat preservation layer 4 is provided between the heating wall 2 and the electromagnetic induction heating coil 3 .
[0051] The electromagnetic heating inverter 5 can accurately control the heating power and temperature to ensure that the food is evenly heated during the baking process to avoid over-baking or under-baking. The insulation layer 4 between the heating wall 2 and the electromagnetic induction heating coil 3 can effectively reduce the loss of heat to the external environment and improve the heat preservation performance in the oven, thereby ensuring that the food can continue to receive sufficient heat during the baking process.
[0052] A temperature control probe is also provided in the heating wall 2, and the temperature control probe is located at a position of the heating wall 2 close to the baking tray 11. The temperature control probe is electrically connected to the electromagnetic heating inverter 5, so that the output power of the electromagnetic induction heating coil 3 can be controlled through the electromagnetic heating inverter 5 according to the actual temperature required for the baking operation, or the start and stop of the electromagnetic heating inverter 5 can be automatically controlled, thereby achieving more accurate control of the baking temperature.
[0053] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0054] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An electromagnetic oven, characterized in that: The invention comprises a furnace shell (1), the side wall of the furnace shell (1) being a heating wall (2), an electromagnetic induction heating coil (3) being wound around the heating wall (2), and a placement device for placing food to be baked being arranged inside the furnace shell (1), the placement device being made of electromagnetic induction material.
2. The electromagnetic oven according to claim 1, characterized in that: The furnace shell (1) is provided with a feed inlet at the top, the furnace shell (1) is provided with a discharge port (13), the feed inlet is covered with a cover (6), the edge of the cover (6) is hinged to the furnace shell (1), and the cover (6) is provided with a handle (7).
3. The electromagnetic oven according to claim 2, characterized in that: The storage device is a baking tray (11) arranged in the furnace shell (1); a motor (8) is arranged at the bottom of the furnace shell (1); the discharge port (13) is arranged on the side wall of the furnace shell (1); the discharge port (13) corresponds to the top surface of the baking tray (11); a vertical first rotating shaft (9) is fixedly connected to the baking tray (11); and the motor (8) is drivingly connected to the first rotating shaft (9).
4. The electromagnetic oven according to claim 3, characterized in that: A baffle (12) is fixedly provided on the inner side of the heating wall (2), the baffle (12) is located above the baking tray (11), the lower end of the baffle (12) abuts against the baking tray (11), and the baffle (12) corresponds to the position of the discharge port (13).
5. The electromagnetic oven according to claim 2, characterized in that: The storage device is a spiral grill (15) arranged in the furnace shell (1), the center of the spiral grill (15) is fixedly connected to a vibration shaft (10), the furnace shell (1) is provided with a motor (8) connected to the vibration shaft (10), the motor (8) is a vibration motor, the discharge port (13) is arranged at the bottom of the furnace shell (1), the discharge port (13) corresponds to the lower end of the spiral grill (15), the furnace shell (1) is fixedly provided with a baking plate (17) at the top, the baking plate (17) is made of electromagnetic induction material, and the baking plate (17) is provided with an inlet corresponding to the top position of the spiral grill (15).
6. The electromagnetic oven according to claim 5, characterized in that: A ball bearing (14) is arranged on the spiral grill (15), and the ball bearing (14) is connected to the spiral grill (15) in a damping rotation manner.
7. The electromagnetic oven according to claim 5, characterized in that: The spiral grill (15) is provided with a limiting plate (16).
8. The electromagnetic oven according to claim 1, characterized in that: An electromagnetic heating frequency converter (5) is provided on the furnace shell (1), the electromagnetic heating frequency converter (5) is electrically connected to the electromagnetic induction heating coil (3), and a heat insulation layer (4) is provided between the heating wall (2) and the electromagnetic induction heating coil (3).
9. The electromagnetic oven according to claim 8, characterized in that: A temperature control probe is arranged inside the heating wall (2), and the temperature control probe is electrically connected to the electromagnetic heating frequency converter (5).