A microwave oven with partitioned heat dissipation

Abstract

The utility model discloses a kind of partition heat dissipation's microwave oven, including shell, magnetron assembly, frequency conversion component and heat dissipation component, the bottom of shell forms heat dissipation cavity, the magnetron assembly and the frequency conversion component are located in the heat dissipation cavity, the shell includes front inner plate and rear inner plate, the front inner plate and the rear inner plate form heat dissipation passage, the heat dissipation passage passes through the heat dissipation cavity, the heat dissipation component is located at the air inlet side or air outlet side of the heat dissipation passage, the heat dissipation component at least includes first heat dissipation fan and second heat dissipation fan, the position of the first heat dissipation fan corresponds with the position of the magnetron assembly, the position of the second heat dissipation fan corresponds with the position of the frequency conversion component.Using the utility model, can carry out partition heat dissipation, and heat dissipation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of herbal medicine technology, and in particular to a microwave oven with partitioned heat dissipation. Background Technology

[0002] Microwave ovens are common household appliances that use magnetrons to generate electromagnetic waves to heat food. Existing inverter microwave ovens employ inverter radiation technology to achieve variable frequency control. The key components in an inverter microwave oven are the magnetron and inverter components, which generate a significant amount of heat during operation. Some existing inverter microwave ovens place the heat dissipation mechanism at the top of the device, using vertical air ducts to cool the lower components. However, this design has the following drawbacks: First, the natural rise of hot air is opposite to forced convection, resulting in low heat dissipation efficiency; second, a single fan cannot provide differentiated cooling for different heat-generating components, and when the inverter temperature reaches 75°C, the magnetron area temperature exceeds the safety threshold; moreover, this solution suffers from uneven airflow distribution, with approximately 40% of the ventilation area lacking effective airflow, severely impacting maintenance efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a microwave oven with partitioned heat dissipation, which can perform partitioned heat dissipation and has high heat dissipation efficiency.

[0004] To solve the above-mentioned technical problems, this utility model provides a microwave oven with partitioned heat dissipation, including a shell, a magnetic control component, a frequency conversion component, and a heat dissipation component. The bottom of the shell forms a heat dissipation cavity, and the magnetic control component and the frequency conversion component are disposed in the heat dissipation cavity.

[0005] The housing includes a front inner panel and a rear inner panel, and a heat dissipation channel is formed between the front inner panel and the rear inner panel. The heat dissipation channel passes through the heat dissipation cavity. The heat dissipation component is disposed on the air inlet side or air outlet side of the heat dissipation channel. The heat dissipation component includes at least a first heat dissipation fan and a second heat dissipation fan. The position of the first heat dissipation fan corresponds to the position of the magnetic control component, and the position of the second heat dissipation fan corresponds to the position of the frequency converter component.

[0006] As an improvement to the above solution, the outer casing also includes a chassis and an upper support plate. The bottom of the front inner panel and the bottom of the rear inner panel are fixed to the chassis. The upper support plate is located above the chassis. The two ends of the upper support plate are respectively connected to the front inner panel and the rear inner panel. The chassis, the upper support plate, the front inner panel and the rear inner panel form the heat dissipation channel.

[0007] As an improvement to the above solution, the bottom of the heat dissipation component is fixed to the chassis, the upper part of the heat dissipation component is connected to the upper support plate, and the heat dissipation component is located in the heat dissipation channel on the side close to the external atmosphere.

[0008] As an improvement to the above solution, the heat dissipation assembly further includes a fan bracket plate, on which the first cooling fan and the second cooling fan are fixed. The bottom of the fan bracket plate is provided with bracket plate fixing holes, which can be fixed to the chassis.

[0009] As an improvement to the above solution, the fan bracket includes a first bracket and a second bracket. The first bracket fixes the first cooling fan, and the second bracket fixes the second cooling fan. A transition surface is provided between the first bracket and the second bracket, and the transition surface is an arc-shaped surface.

[0010] As an improvement to the above solution, the minimum distance from the first cooling fan to the magnetic control component is less than the minimum distance from the second cooling fan to the frequency converter component.

[0011] As an improvement to the above solution, the frequency converter assembly includes a front cover, a rear cover, and a frequency converter. The front cover and the rear cover form a ventilation channel, the frequency converter is located in the ventilation channel, and the first cooling fan is located in the ventilation channel on the side closer to the outside atmosphere.

[0012] As an improvement to the above solution, the magnetic control assembly is provided with multiple heat dissipation fins, which are arranged at intervals and form sub-channels between adjacent heat dissipation fins. The air inlet or air outlet side of the sub-channel is directly opposite the first cooling fan.

[0013] As an improvement to the above solution, the ventilation channel and the heat dissipation channel are separated by the rear cover, and the magnetic control component is located on the side of the rear cover.

[0014] As an improvement to the above solution, the outer casing also includes a side panel cover, on which a first side panel and a second side panel are respectively provided on both sides. Both the first side panel and the second side panel are provided with a plurality of evenly distributed heat dissipation holes, which are located on the side of the heat dissipation channel and communicate with the heat dissipation channel.

[0015] Implementing this utility model has the following beneficial effects:

[0016] This utility model discloses a microwave oven with partitioned heat dissipation, comprising a shell, a magnetic control assembly, a frequency converter assembly, and a heat dissipation assembly. The bottom of the shell forms a heat dissipation cavity, within which the magnetic control assembly and the frequency converter assembly dissipate heat. The shell includes a front inner panel and a rear inner panel, with a heat dissipation channel formed between them. The heat dissipation assembly includes at least a first cooling fan and a second cooling fan. The first cooling fan is positioned corresponding to the magnetic control assembly, and the second cooling fan is positioned corresponding to the frequency converter assembly. This allows for separate heat dissipation of the magnetic control assembly and the frequency converter assembly from different areas, achieving partitioned heat dissipation. Compared to traditional top-heat dissipation methods, this method has a shorter heat dissipation path and more targeted heat dissipation, thus achieving highly efficient heat dissipation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the disassembled structure of the microwave oven with partitioned heat dissipation according to this utility model;

[0018] Figure 2 This is a schematic diagram of the heat dissipation channel and ventilation channel of this utility model;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the heat dissipation component of this utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the frequency converter component of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the magnetic control component of this utility model;

[0022] Figure 6 This is a structural schematic diagram of the side panel cover of this utility model. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0024] See Figure 1 and Figure 2This utility model discloses a microwave oven with partitioned heat dissipation, including a shell 1, a magnetic control assembly 2, a frequency converter assembly 3, and a heat dissipation assembly 4. The shell 1 is used to fix and protect the magnetic control assembly 2, the frequency converter assembly 3, and the heat dissipation assembly 4. The magnetic control assembly 2 is used to generate electromagnetic waves to heat materials, and the frequency converter assembly 3 is used to realize frequency conversion control. A heat dissipation cavity 1 is formed at the bottom of the shell, and the magnetic control assembly and the frequency converter assembly are disposed in the heat dissipation cavity 1 for centralized heat dissipation.

[0025] The outer casing 1 also includes a front inner plate 12 and a rear inner plate 13. The front inner plate 12 and the rear inner plate 13 are arranged parallel and spaced apart. The upper part between the front inner plate 12 and the rear inner plate 13 forms a microwave radiation heating space. A through heat dissipation channel 14 is formed between the front inner plate 12 and the rear inner plate 13. The heat dissipation channel 14 passes through the heat dissipation cavity 1, and the magnetic control component 2 and the frequency conversion component 3 are disposed in the heat dissipation channel 14. The heat dissipation component 4 is disposed on the air inlet side or air outlet side of the heat dissipation channel 14. The air outlet axis of the heat dissipation component is parallel to or forms an angle with the extension direction of the heat dissipation channel 14. When the heat dissipation component 4 is activated, external airflow is introduced into the heat dissipation channel 14 through the air inlet. The air passes parallel through the heat dissipation channel 14 and flows sequentially through the heat dissipation fin surface of the magnetic control component 2 and the heat dissipation body gap of the frequency conversion component 3, and finally exits from the exhaust port of the heat dissipation channel 14 to provide concentrated heat dissipation for the magnetic control component 2 and the frequency conversion component 3 in the heat dissipation channel 14. Furthermore, the heat dissipation component 4 includes a first cooling fan 41 and a second cooling fan 42. The position of the first cooling fan 41 corresponds to the position of the magnetic control component 2, enabling it to dissipate heat from the area where the magnetic control component 2 is located. The airflow generated by the first cooling fan 41 directly covers the heat-generating area of ​​the magnetic control component 2, specifically reducing heat loss due to eddy currents generated by the high-frequency electromagnetic field. The position of the second cooling fan 42 corresponds to the position of the frequency converter component 3, enabling it to dissipate heat from the area of ​​the frequency converter component 3. The coordinated operation of the first cooling fan 41 and the second cooling fan 42 forms a zoned heat dissipation mode, reducing mutual airflow interference. Through zoned heat dissipation, heat dissipation efficiency is improved. The fan speed can also be independently adjusted according to the real-time temperature difference between the magnetic control component 2 and the frequency converter component 3, enhancing heat dissipation flexibility and energy efficiency.

[0026] The beneficial effects of this utility model embodiment are as follows:

[0027] This utility model discloses a microwave oven with partitioned heat dissipation, comprising a shell 1, a magnetic control assembly 2, a frequency converter 3, and a heat dissipation assembly 4. The bottom of the shell 1 forms a heat dissipation cavity 11, within which the magnetic control assembly 2 and the frequency converter 3 dissipate heat. The shell 1 includes a front inner plate 12 and a rear inner plate 13, with a heat dissipation channel 14 formed between them. The heat dissipation assembly 4 includes at least a first cooling fan 41 and a second cooling fan 42. The position of the first cooling fan 41 corresponds to the position of the magnetic control assembly 2, and the position of the second cooling fan 42 corresponds to the position of the frequency converter 3. This allows for separate heat dissipation of the magnetic control assembly 2 and the frequency converter 3 from different areas, achieving partitioned heat dissipation. Compared to traditional top-heat dissipation methods, this method has a shorter heat dissipation path and more targeted heat dissipation, thus achieving efficient heat dissipation.

[0028] See Figure 2 The outer casing 1 also includes a chassis 15 and an upper support plate 16. The bottom of the front inner panel 12 and the bottom of the rear inner panel 13 are fixed to the chassis 15. The rigid support of the chassis 15 ensures the vertical alignment stability of the front inner panel 12 and the rear inner panel 13, preventing airflow turbulence caused by structural deformation of the heat dissipation channel 14. The upper support plate 16 is located above the chassis 15. The two ends of the upper support plate 16 are connected to the front inner panel 12 and the rear inner panel 13 respectively, forming a sealed sidewall of the heat dissipation channel 14, allowing airflow to flow in a concentrated manner along a preset path. At the same time, the upper support plate 16 is used to support and fix the herbal treatment module. Its planar structure provides a stable mounting base for the herbal treatment module, preventing vibration from being transmitted to the heat dissipation assembly 4. The chassis 15, the upper support plate 16, the front inner plate 12 and the rear inner plate 13 form the heat dissipation channel 14. The four-sided limiting forms a directional airflow space, which forces air to flow evenly along the surface of the magnetic control component 2 and the frequency conversion component 3, thereby improving the heat dissipation efficiency.

[0029] The bottom of the heat dissipation component 4 is fixed to the chassis 15. The heat conduction of the chassis 15 assists in the diffusion of residual heat from the heat sink at the bottom of the heat dissipation component 4, reducing local temperature rise. The upper part of the heat dissipation component 4 is connected to the upper support plate 16. The heat dissipation component 4 is located in the heat dissipation channel 14 on the side closer to the external atmosphere. By shortening the exchange path between the heat dissipation airflow and the external environment, airflow resistance is reduced, and heat exchange efficiency is improved.

[0030] See Figure 3The heat dissipation assembly 4 also includes a fan bracket 43. The first cooling fan 41 and the second cooling fan 42 are fixed to the fan bracket 43. The bottom of the fan bracket 43 is provided with bracket fixing holes 431, which can be fixed to the chassis 15. The first cooling fan 41 and the second cooling fan 42 are fixed to the fan bracket 43 by screws or clips 321. The planar support of the bracket ensures the parallelism of the axes of the two fans and avoids airflow deflection due to installation tilt.

[0031] Specifically, the fan bracket includes a first bracket 431 and a second bracket 432. The first bracket 431 fixes the first cooling fan 41, and the second bracket 432 fixes the second cooling fan 42. A transition surface 433, which is arc-shaped, is provided between the first bracket 431 and the second bracket 432. The arc-shaped transition surface 433 seamlessly connects the first bracket 431 and the second bracket 432, preventing turbulence or local vortices in the airflow within the heat dissipation channel 14.

[0032] The minimum distance between the first cooling fan 41 and the magnetic control component 2 is less than the minimum distance between the second cooling fan 42 and the frequency converter component 3. The close proximity of the first cooling fan 41 and the magnetic control component 2 enhances the airflow impact intensity and accelerates heat dissipation; the matching distance between the second cooling fan 42 and the frequency converter component 3 balances the airflow coverage and flow rate attenuation, avoiding heat dissipation blind spots.

[0033] See Figure 4 The frequency converter assembly 3 includes a front cover 31, a rear cover 32, and a frequency converter 33. The front cover 31 and the rear cover 32 form a ventilation channel 34. The frequency converter 33 is disposed within the ventilation channel 34. The first cooling fan is disposed in the ventilation channel 34 on the side closer to the outside atmosphere. It uses the principle of negative pressure to guide the outside cold air to flow quickly across the surface of the frequency converter 33, forming a directional airflow that carries away heat. By using the front cover 31 and the rear cover 32 to isolate the frequency converter 33 in an independent air duct, the concentrated heat of the frequency converter assembly 3 can be prevented from diffusing to the magnetic control assembly 2.

[0034] See Figure 5The magnetic control assembly 2 is provided with multiple heat dissipation fins 21, which are arranged at preset intervals. Adjacent heat dissipation fins 21 form sub-channels 22, with the air inlet or outlet side of the sub-channel 22 facing the first cooling fan 41, allowing the airflow from the first cooling fan 41 to directly enter the sub-channel 22. The arrangement direction of the heat dissipation fins 21 is perpendicular to the airflow direction of the first cooling fan 41. When the first cooling fan 41 starts, high-speed airflow is injected from the air inlet side of the sub-channel 22, forming a wall-following flow along the surface of the heat dissipation fins 21, continuously dissipating the heat generated inside the magnetic control assembly 2 to the main airflow of the heat dissipation channel 14. The ventilation channel 34 and the heat dissipation channel 14 are physically isolated by the rear cover 32, preventing mutual heat interference and avoiding interference from the electromagnetic components affecting the operating stability of the frequency converter 33. The magnetic control assembly 2 is located on the side of the rear cover 32.

[0035] See Figure 6 The outer casing 1 also includes a side panel cover 17. The side panel cover 17 has a first side panel 171 and a second side panel 172 on its two sides, respectively. Both the first side panel 171 and the second side panel 172 have multiple evenly distributed heat dissipation holes 173. The heat dissipation holes 173 are located on the side of the heat dissipation channel 14 and communicate with the heat dissipation channel 14. Through optimized design of the hole diameter and spacing, a uniform negative pressure zone is formed, guiding external cold air into the heat dissipation channel 14 from the side. Simultaneously, the hole walls prevent large dust particles from depositing on the surface of the magnetic control component 2. The heat dissipation holes 173 are distributed in a gradually denser pattern along the airflow direction, with increased hole density near the cooling fan area to enhance local heat dissipation capacity.

[0036] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A microwave oven with partitioned heat dissipation, characterized in that, It includes a housing, a magnetic control component, a frequency conversion component, and a heat dissipation component. The bottom of the housing forms a heat dissipation cavity, and the magnetic control component and the frequency conversion component are disposed in the heat dissipation cavity. The housing includes a front inner panel and a rear inner panel, and a heat dissipation channel is formed between the front inner panel and the rear inner panel. The heat dissipation channel passes through the heat dissipation cavity. The heat dissipation component is disposed on the air inlet side or air outlet side of the heat dissipation channel. The heat dissipation component includes at least a first heat dissipation fan and a second heat dissipation fan. The position of the first heat dissipation fan corresponds to the position of the magnetic control component, and the position of the second heat dissipation fan corresponds to the position of the frequency converter component.

2. The microwave oven with partitioned heat dissipation according to claim 1, characterized in that, The outer casing also includes a chassis and an upper support plate. The bottom of the front inner panel and the bottom of the rear inner panel are fixed to the chassis. The upper support plate is located above the chassis. The two ends of the upper support plate are respectively connected to the front inner panel and the rear inner panel. The chassis, the upper support plate, the front inner panel and the rear inner panel form the heat dissipation channel.

3. The microwave oven with partitioned heat dissipation according to claim 2, characterized in that, The bottom of the heat dissipation component is fixed to the chassis, the upper part of the heat dissipation component is connected to the upper support plate, and the heat dissipation component is located in the heat dissipation channel on the side close to the outside atmosphere.

4. The microwave oven with partitioned heat dissipation according to claim 2, characterized in that, The heat dissipation assembly also includes a fan bracket plate, on which the first cooling fan and the second cooling fan are fixed. The bottom of the fan bracket plate is provided with bracket plate fixing holes, which can be fixed to the chassis.

5. The microwave oven with partitioned heat dissipation according to claim 4, characterized in that, The fan bracket includes a first bracket and a second bracket. The first bracket fixes the first cooling fan, and the second bracket fixes the second cooling fan. A transition surface is provided between the first bracket and the second bracket, and the transition surface is an arc-shaped surface.

6. The microwave oven with partitioned heat dissipation according to claim 4, characterized in that, The minimum distance from the first cooling fan to the magnetic control component is less than the minimum distance from the second cooling fan to the frequency converter component.

7. The microwave oven with partitioned heat dissipation according to claim 1, characterized in that, The frequency converter assembly includes a front cover, a rear cover, and a frequency converter. The front cover and the rear cover form a ventilation channel, the frequency converter is located inside the ventilation channel, and the second cooling fan is located in the ventilation channel on the side closer to the outside atmosphere.

8. The microwave oven with partitioned heat dissipation according to claim 1, characterized in that, The magnetic control assembly has multiple heat dissipation fins arranged at intervals, and a sub-channel is formed between adjacent heat dissipation fins. The air inlet or air outlet side of the sub-channel is directly opposite the first cooling fan.

9. The microwave oven with partitioned heat dissipation according to claim 7, characterized in that, The ventilation channel and the heat dissipation channel are separated by the rear cover, and the magnetic control component is located on the side of the rear cover.

10. The microwave oven with partitioned heat dissipation according to claim 1, characterized in that, The outer casing also includes a side panel cover, on which a first side panel and a second side panel are respectively provided on both sides. Both the first side panel and the second side panel are provided with a plurality of evenly distributed heat dissipation holes, which are located on the side of the heat dissipation channel and communicate with the heat dissipation channel.

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