Belt-driven microwave stirring motor mechanism
By using belt transmission technology in microwave mixing motors, the motor and the stirring shaft are separated, which solves the problem of motor heating in high-temperature environments, and achieves a quieter and more efficient microwave mixing effect.
Patent Information
- Application Number
- CN202422195959.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-06
AI Technical Summary
Existing microwave stirring motors are prone to heat up due to heat transfer in high temperature environments, affecting the normal operation of the motor.
A microwave mixing motor mechanism using belt transmission separates the motor from the mixing shaft through belt transmission to prevent heat from being directly transferred to the motor.
It effectively reduces the impact of heat derived from the cavity on the motor, reduces the problem of the motor's heating, and also improves the quietness of the system.
Smart Images

Figure CN223024242U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of microwave stirring, in particular to a microwave stirring motor mechanism driven by a belt. Background Art
[0002] The microwave stirring motor originated from the development requirements of microwave oven technology. In the early microwave ovens, due to the limitations of the heating method, the problem of uneven food heating often occurred. To improve the heating effect, engineers introduced a stirring motor, which can make the food or materials in the microwave oven heated evenly. This technology not only improves the use efficiency of the microwave oven, but also improves the heating quality of the food, making it widely used in the household and commercial fields.
[0003] However, at present, the vast majority of microwave stirring motors on the market are direct-drive type. For flat microwave oven products, the stirring motor is located at the bottom of the cavity, and the motor shaft directly extends into the cavity. If the product has a high cavity temperature, the cavity heat will be transferred to the motor, affecting the motor temperature rise. Summary of the Utility Model
[0004] To make up for the above deficiencies, the utility model provides a microwave stirring motor mechanism driven by a belt, aiming to improve the problems in the prior art that the vast majority of microwave stirring motors are direct-drive type, for flat microwave oven products, the stirring motor is located at the bottom of the cavity, the motor shaft directly extends into the cavity, and if the product has a high cavity temperature, the cavity heat will be transferred to the motor, affecting the motor temperature rise.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a microwave stirring motor mechanism driven by a belt is installed on a cavity assembly. A waveguide box assembly is arranged on the top of the cavity assembly. A second motor support bracket is arranged on the top of the waveguide box assembly. A motor bracket is arranged on the top of the second motor support bracket. A first motor support bracket is arranged on the top of the cavity assembly. A motor bracket is arranged on the top of the first motor support bracket. A pulley cover is arranged on the top of the motor bracket. A motor is arranged at the bottom of the motor bracket. The output end of the motor is fixedly connected with a motor shaft. A driving wheel is fixedly connected to the outside of the motor shaft. The driving wheel is connected with a driven pulley through a belt. A stirring shaft is fixedly connected to the inside of the driven pulley.
[0006] Further, a bearing is arranged on the outside of the stirring shaft. The bearing is arranged at the bottom of the motor bracket. A stirrer bracket is arranged on the outside of the stirring shaft. A stirrer is arranged on the outside of the stirrer bracket.
[0007] Further, the top end of the stirring shaft is rotatably connected to the inner top of the pulley cover. The top end of the motor shaft is rotatably connected to the inner top of the pulley cover.
[0008] Furthermore, a microwave generator is provided inside the waveguide box assembly.
[0009] Furthermore, the belt between the driving pulley and the driven pulley is made of a highly wear-resistant material.
[0010] Furthermore, the agitator and the agitator bracket are detachably connected.
[0011] Furthermore, both the first motor bracket support and the second motor bracket support are made of metal materials, and both the first motor bracket support and the second motor bracket support are connected to the motor bracket by screws.
[0012] Furthermore, the stirring shaft penetrates through the waveguide box assembly and is connected to the inside of the cavity assembly.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, smaller driving pulleys and driven pulleys are adopted to reduce the height of the belt drive assembly. The belt drive method is usually relatively stable, which can reduce the noise during the operation of the motor. Compared with the direct drive system, it is quieter. By using the belt drive method, the distance from the cavity to the bottom plate is reduced, providing more room for the exterior design.
[0015] 2. In the utility model, the motor is separated from the stirring shaft inside the cavity. The motor drives the pulley through the belt drive to drive the stirring shaft to rotate, thus playing a stirring role. As a result, the heat conducted out by the stirring shaft cannot directly act on the motor body, solving the problem that most of the existing microwave stirring motors cannot reduce the influence of the heat conducted out from the inside of the cavity on the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is an exploded view of a belt-driven microwave stirring motor mechanism proposed by the utility model;
[0017] Figure 2 is a partial structural cross-sectional view of a belt-driven microwave stirring motor mechanism proposed by the utility model;
[0018] Figure 3 is a three-dimensional view of a belt-driven microwave stirring motor mechanism proposed by the utility model;
[0019] Figure 4 is a partial structural development view of a belt-driven microwave stirring motor mechanism proposed by the utility model;
[0020] Figure 5 is a cross-sectional view of a belt-driven microwave stirring motor mechanism proposed by the utility model;
[0021] Figure 6 It is an enlarged view of part A in the figure.
[0022] Legend:
[0023] 1. Motor; 2. Motor bracket; 3. Bearing; 4. Stirring shaft; 5. Driven pulley; 6. Driving wheel; 7. Pulley cover; 8. First motor bracket support; 9. Second motor bracket support; 10. Waveguide box assembly; 11. Cavity assembly; 12. Stirrer; 13. Motor shaft; 14. Stirrer bracket; 15. Belt. Specific implementation mode
[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0025] Referring to Figure 1-6 , an embodiment provided by the present invention: A microwave stirring motor mechanism driven by a belt is installed in the cavity assembly 11. A waveguide box assembly 10 is provided at the top of the cavity assembly 11. A second motor bracket support 9 is provided at the top of the waveguide box assembly 10. A motor bracket 2 is provided at the top of the second motor bracket support 9. A first motor bracket support 8 is provided at the top of the cavity assembly 11. A motor bracket 2 is provided at the top of the first motor bracket support 8. A pulley cover 7 is provided at the top of the motor bracket 2. A motor 1 is provided at the bottom of the motor bracket 2. The output end of the motor 1 is fixedly connected to a motor shaft 13. A driving wheel 6 is fixedly connected to the outside of the motor shaft 13. The driving wheel 6 is connected to the driven pulley 5 through a belt 15. A stirring shaft 4 is fixedly connected to the inside of the driven pulley 5. A bearing 3 is provided on the outside of the stirring shaft 4. The bearing 3 is provided at the bottom of the motor bracket 2. A stirrer bracket 14 is provided on the outside of the stirring shaft 4. A stirrer 12 is provided on the outside of the stirrer bracket 14.
[0026] After the power supply of the motor 1 is turned on, the motor 1 starts to operate. The output end of the motor 1 is connected to the motor shaft 13. When the motor 1 operates, the motor shaft 13 rotates accordingly. A transmission wheel 6 is fixedly connected to the outside of the motor shaft 13. The rotational movement on the motor shaft 13 is transmitted to the belt 15 through the transmission wheel 6. The transmission wheel 6 contacts the belt 15 and drives the belt 15 to rotate. The belt 15 is an annular transmission component that rotates around the driven belt pulley 5. One side of the belt 15 is connected to the driven belt pulley 5, and the driven belt pulley 5 is driven by the belt 15 to rotate. Since a stirring shaft 4 is fixedly connected inside the driven belt pulley 5, the rotational movement of the driven belt pulley 5 causes the stirring shaft 4 to rotate accordingly. A bearing 3 is provided outside the stirring shaft 4, and the bearing 3 supports the rotation of the stirring shaft 4. A stirrer bracket 14 is also connected to the outside of the stirring shaft 4, and a stirrer 12 is installed on the stirrer bracket 14. The microwave generator in the waveguide box assembly 10 generates microwaves. Through the stirring of the stirrer 12, the microwaves are evenly distributed in the microwave oven. The stirrer 12 is used to disperse the microwaves so that the microwaves fill the cavity, achieving the effect of uniform heating.
[0027] Refer to Figure 1 , Figure 2 and Figure 4 , the top end of the stirring shaft 4 is rotatably connected to the inner top of the belt pulley cover 7, the top end of the motor shaft 13 is rotatably connected to the inner top of the belt pulley cover 7, a microwave generator is provided inside the waveguide box assembly 10, and the belt 15 between the transmission wheel 6 and the driven belt pulley 5 is made of a highly wear-resistant material.
[0028] The belt pulley cover 7 has a sealing function to prevent microwave leakage. A microwave generator is provided inside the waveguide box assembly 10 to provide microwave energy for the stirring process. The belt 15 between the transmission wheel 6 and the driven belt pulley 5 is made of a highly wear-resistant material to improve the service life.
[0029] Refer to Figure 1 , Figure 5 and Figure 6 , the stirrer 12 and the stirrer bracket 14 are detachably connected. Both the motor support bracket one 8 and the motor support bracket two 9 are made of metal materials. Both the motor support bracket one 8 and the motor support bracket two 9 are connected to the motor bracket 2 by screws. The stirring shaft 4 passes through the waveguide box assembly 10 and is connected to the inside of the cavity assembly 11.
[0030] The stirrer 12 and the stirrer bracket 14 are detachably connected to facilitate cleaning and replacement. Both the motor support bracket one 8 and the motor support bracket two 9 are made of metal materials. Both the motor support bracket one 8 and the motor support bracket two 9 are connected to the motor bracket 2 by screws to enhance the structural strength. Using a shorter stirring shaft 4 can reduce the overall height of the stirring assembly and provide more space for the appearance design.
[0031] Working principle: When in use, after the power supply of the motor 1 is turned on, the motor 1 starts to operate. When the motor 1 is operating, the motor shaft 13 rotates accordingly. The rotational movement on the motor shaft 13 is transmitted to the belt 15 through the transmission pulley 6. The belt 15 is an annular transmission component that rotates around the driven pulley 5. The driven pulley 5 is driven by the belt 15 to rotate. Since the stirring shaft 4 is fixedly connected inside the driven pulley 5, the rotational movement of the driven pulley 5 causes the stirring shaft 4 to rotate accordingly. Bearings 3 are arranged outside the stirring shaft 4 to support the rotation of the stirring shaft 4. The microwave generator in the waveguide box assembly 10 generates microwaves. Through the stirring of the stirrer 12, the microwaves are evenly distributed in the microwave oven. The stirrer 12 is used to disperse the microwaves so that the microwaves fill the cavity, achieving the effect of uniform heating.
[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A belt-driven microwave stirring motor mechanism, mounted on a cavity assembly (11), characterized in that: A waveguide box assembly (10) is arranged on the top of the cavity assembly (11), a motor bracket support 2 (9) is arranged on the top of the waveguide box assembly (10), a motor bracket (2) is arranged on the top of the motor bracket support 2 (9), a motor bracket (8) is arranged on the top of the cavity assembly (11), a motor bracket support 1 (8) is arranged on the top of the motor bracket support 1 (8), a pulley cover (7) is arranged on the top of the motor bracket (2), a motor (1) is arranged on the bottom of the motor bracket (2), an output end of the motor (1) is fixedly connected to a motor shaft (13), an outer portion of the motor shaft (13) is fixedly connected to a transmission wheel (6), the transmission wheel (6) is connected to a driven pulley (5) via a belt (15), and an inner portion of the driven pulley (5) is fixedly connected to a stirring shaft (4).
2. A belt-driven microwave stirring motor mechanism according to claim 1, characterized in that: A bearing (3) is arranged outside the stirring shaft (4), and the bearing (3) is arranged at the bottom of the motor bracket (2). An agitator bracket (14) is arranged outside the stirring shaft (4), and an agitator (12) is arranged outside the agitator bracket (14).
3. A belt-driven microwave stirring motor mechanism according to claim 1, characterized in that: The top end of the stirring shaft (4) is rotatably connected to the inner top of the pulley cover (7), and the top end of the motor shaft (13) is rotatably connected to the inner top of the pulley cover (7).
4. A belt-driven microwave stirring motor mechanism according to claim 1, characterized in that: A microwave generator is arranged inside the waveguide box assembly (10).
5. The belt-driven microwave stirring motor mechanism according to claim 1, characterized in that: The belt (15) between the driving wheel (6) and the driven pulley (5) is made of highly wear-resistant material.
6. A belt-driven microwave stirring motor mechanism according to claim 2, characterized in that: The stirrer (12) and the stirrer support (14) are detachably connected.
7. The belt-driven microwave stirring motor mechanism according to claim 1, characterized in that: The motor bracket support 1 (8) and the motor bracket support 2 (9) are both made of metal materials, and the motor bracket support 1 (8) and the motor bracket support 2 (9) are both connected to the motor bracket (2) by screws.
8. The belt-driven microwave stirring motor mechanism according to claim 1, characterized in that: The stirring shaft (4) passes through the waveguide box component (10) and is connected to the interior of the cavity component (11).