A cooling protection structure and a cooking device thereof

Abstract

The utility model discloses a cooling protection structure and cooking equipment thereof, including the body and air guide channel, the body is equipped with the circuit board, still be equipped with the heat dissipation subassembly on the body, and the heat dissipation subassembly includes the air guide chamber, drive motor, the fan of setting in the air guide chamber and with drive motor connection, air intake and with the air outlet of air guide chamber intercommunication, air guide channel one end with air intake intercommunication, its other end with circuit board intercommunication, wherein, when drive motor drive fan rotation, the outside air enters from the one end of air guide channel through air intake and discharges from the other end of air guide channel to the cooling of circuit board, simultaneously, the air of discharging from the other end of air guide channel or / and the air in the body interior is introduced into the air guide chamber and then discharges outside through the air outlet to realize the cooling of the body. The utility model discloses cooling protection structure, and the outside air is accurately guided to the circuit board area in combination with air guide channel, and the air is actively through the circuit board and takes away the heat of circuit board and its surrounding and realizes the cooling protection.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, specifically to a cooling protection structure and its cooking equipment. Background Technology

[0002] In existing cooking equipment, electronic components such as circuit boards, which are not resistant to high temperatures, typically lack dedicated cooling structures. They mostly rely on natural heat dissipation or passive cooling by being positioned relatively close to the heat vents. While this simplified cooling method helps reduce structural complexity and manufacturing costs, it struggles to provide effective thermal management for sensitive components under high-temperature conditions. Especially during prolonged operation or high-power cooking, circuit boards are prone to rapid temperature rise and heat buildup, leading to decreased operational stability, shortened lifespan, and compromised overall safety and reliability. Utility Model Content

[0003] In order to overcome the defects of the prior art, the present invention provides a cooling protection structure and cooking equipment, which, combined with an air guide channel, precisely guides external air to the circuit board area, so that the air actively passes through the circuit board and carries away the heat of the circuit board and its surroundings to achieve cooling protection.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A cooling protection structure, comprising:

[0006] The machine body is equipped with a circuit board and a heat dissipation assembly. The heat dissipation assembly includes an air guide cavity, a drive motor, a fan disposed in the air guide cavity and connected to the drive motor, an air inlet, and an air outlet communicating with the air guide cavity.

[0007] An air guide channel, one end of which is connected to the air inlet, and the other end of which is connected to the circuit board;

[0008] When the drive motor drives the fan to rotate, external air enters from one end of the air guide channel through the air inlet and exits from the other end of the air guide channel to cool the circuit board. At the same time, the air exiting from the other end of the air guide channel and / or the air inside the machine body is introduced into the air guide cavity and then discharged to the outside through the air outlet to cool the machine body.

[0009] Furthermore, it also includes a circuit board bracket, on which the circuit board is mounted, and the bottom of the circuit board bracket has an opening;

[0010] The air guide channel includes an air intake contraction section and an air outlet diffusion section. The air intake end of the air intake contraction section is connected to the air inlet, and the air outlet end of the air outlet diffusion section is connected to the opening.

[0011] Furthermore, the machine body is provided with a first fixed column and a second fixed column, and the gas outlet diffuser section is provided with a first connecting column and a second connecting column, the first connecting column being sleeved on the first fixed column, and the second connecting column being sleeved on the second fixed column.

[0012] Furthermore, the bottom of the circuit board bracket is provided with a third connecting post and a fourth connecting post. The third connecting post is inserted into the first connecting post and fastened to the first fixing post by a first fastener. The fourth connecting post is inserted into the second connecting post and fastened to the second fixing post by a second fastener.

[0013] Furthermore, the circuit board support is provided with a groove, and the circuit board is snapped into the groove and fastened by a third fastener to be fixed on the circuit board support.

[0014] Furthermore, an air inlet is provided at the top of the air guide cavity, the drive motor is installed outside the air guide cavity, and the output shaft of the drive motor extends into the air guide cavity and is connected to the fan;

[0015] When the drive motor drives the fan to rotate, it can cause the air inside the machine body to flow, and guide the air discharged from the other end of the air guide channel and / or the air inside the machine body into the air guide cavity through the air inlet, and then discharge it through the air outlet to achieve cooling of the machine body.

[0016] Furthermore, the air intake is provided in multiple portions and is arranged at intervals along the circumference of the drive motor.

[0017] A cooking device includes the aforementioned cooling protection structure. The body of the device is further provided with a cooking cavity for heating food. The top of the cooking cavity is provided with a recess, and a fan blade and a heating tube are provided in the recess. The output shaft of the drive motor extends into the recess and is connected to the fan blade.

[0018] When the drive motor drives the fan blades to rotate, the air in the cooking cavity flows and is heated by the heating tube.

[0019] Furthermore, it also includes a mesh cover, one side of which has the air inlet and the other side has the air outlet; the cooking cavity has an air vent that communicates with the air outlet.

[0020] Furthermore, it also includes a frying basket assembly, which is detachably installed inside the cooking cavity.

[0021] In summary, this utility model has the following technical effects:

[0022] 1. The present invention relates to a cooling protection structure and cooking equipment, which, in conjunction with an air guide channel, precisely guides external air to the circuit board area, allowing the air to actively pass through the circuit board and carry away the heat of the circuit board and its surroundings to achieve cooling protection.

[0023] 2. This utility model's cooling protection structure and cooking equipment, through an air guide channel, allows air to actively flow through key electronic components such as circuit boards, effectively removing the heat accumulated around the components and reducing their operating temperature. Compared with traditional methods that rely on natural heat dissipation, this structure can achieve a faster and more stable heat dissipation effect, preventing components from degrading or being damaged due to prolonged high-temperature operation, thereby extending the service life of electronic components and improving the safety and reliability of the entire machine. At the same time, this solution has a compact structure, reasonable cost control, and takes into account both practicality and economy, possessing good value for promotion and application.

[0024] 3. The cooling protection structure and cooking equipment of this utility model can continue to guide the hot air near the circuit board into the air guide cavity and exhaust it to the outside of the equipment through the air outlet, avoiding the accumulation of heat in the machine body, improving the thermal management efficiency of sensitive components such as circuit boards, enhancing the stability and safety of the equipment under high temperature or long-term working conditions, and extending the service life of the circuit board, effectively improving the heat dissipation performance, overall quality and user experience of the whole machine. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the cooling protection structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the air guide frame in the cooling protection structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the air guide channel in the cooling protection structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the circuit board support in the cooling protection structure of this utility model;

[0029] Figure 5 This is a schematic diagram of the cooking cavity in another embodiment of the present invention;

[0030] Figure 6 This is an exploded view of the frying basket assembly and the machine body in another embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the internal airflow in another embodiment of the present invention.

[0032] The meanings of the reference numerals in the attached figures are as follows:

[0033] 1. Body; 11. First fixing post; 12. Second fixing post; 13. Third fixing post; 14. Cooking cavity; 141. Air outlet; 15. Heating tube; 16. Recess; 2. Air guide cavity; 21. Air inlet; 3. Drive motor; 31. Fan; 32. Fan blade; 4. Air guide channel; 41. Air inlet contraction section; 42. Air outlet diffusion section; 421. First connecting post; 422. Second connecting post; 423. Fifth connecting post; 5. Circuit board bracket; 51. Groove; 52. Opening; 53. Third connecting post; 54. Fourth connecting post; 55. Sixth connecting post; 6. Circuit board; 7. Mesh cover; 71. Air inlet; 72. Air outlet; 8. Frying basket assembly. Detailed Implementation

[0034] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module 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.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0037] Example 1

[0038] like Figure 1-4The cooling protection structure shown includes a body 1 and an air duct 4. A circuit board 6 is housed inside the body 1, and a heat dissipation component is mounted on the body 1. This heat dissipation component includes an air duct cavity 2, a drive motor 3, a fan 31 disposed within the air duct cavity 2 and connected to the drive motor 3, an air inlet 71, and an air outlet 72 communicating with the air duct cavity 2. One end of the air duct 4 is connected to the air inlet 71, and the other end is connected to a corresponding area of ​​the circuit board 6. When the drive motor 3 operates, it drives the fan 31 to rotate, thereby creating a continuous airflow. This allows external air to enter the air duct 4 through the air inlet 71 and be precisely guided by the air duct 4 to the area of ​​the circuit board 6, carrying away heat from the circuit board 6 and its surroundings, achieving active heat dissipation for the electronic components. Subsequently, the air that has been discharged from the other end of the air duct 4 to dissipate heat from the circuit board 6, and / or the air inside the body 1, is introduced into the air duct cavity 2 and discharged to the outside of the body 1 through the air outlet 72, thereby preventing heat accumulation inside the body 1 and improving the overall heat dissipation performance and operational stability.

[0039] Furthermore, to achieve directional and efficient cooling of the circuit board 6, the structure also includes a circuit board support 5 for supporting the circuit board 6. The circuit board 6 is fixedly mounted on the circuit board support 5. The bottom of the circuit board support 5 has an opening 52 to cooperate with the air guide channel 4 to deliver air to the circuit board 6. The air guide channel 4 includes an inlet contraction section 41 and an outlet diffusion section 42. The inlet end of the inlet contraction section 41 is connected to the air inlet 71, and the outlet end of the outlet diffusion section 42 is connected to the opening 52 of the circuit board support 5. Through the above structural design, after the external air enters the air guide channel 4, it first accelerates through the inlet contraction section 41, and then the airflow is diffused by the outlet diffusion section 42, finally blowing towards the circuit board 6 in a diffused state, effectively improving the heat dissipation range and efficiency, and avoiding local overheating.

[0040] See Figure 3-4 To ensure stable installation of the air guide channel 4, the main body 1 is equipped with a first fixing post 11 and a second fixing post 12. The air guide channel 4 is equipped with a first connecting post 421 and a second connecting post 422 that cooperate with it, respectively fitting onto the corresponding fixing posts to secure the air guide channel 4. To further enhance structural stability, the bottom of the circuit board bracket 5 is also equipped with a third connecting post 53 and a fourth connecting post 54, which are respectively inserted into the first connecting post 421 and the second connecting post 422, and fixed to the fixing posts by the first and second fasteners. This achieves overall fixation of the circuit board bracket 5 and the air guide channel 4, improving shock resistance and assembly strength, and ensuring a reliable heat dissipation path.

[0041] Furthermore, to enhance the ease of assembly and positioning accuracy of the circuit board 6, the circuit board bracket 5 is also provided with a groove 51. The circuit board 6 is snapped into the groove 51 and fastened by a third fastener to ensure its stability and contact reliability during operation.

[0042] The air outlet diffuser section 42 of the air guide channel 4 is also provided with a fifth connecting post 423. When the circuit board bracket 5 is connected to the air guide channel 4, it can be fastened to the fifth connecting post 423 with screws to ensure the assembly strength of the air guide channel 4. The body 1 is also provided with a third fixing post 13. The bottom of the circuit board bracket 5 is also provided with a sixth connecting post 55 that cooperates with it. The sixth connecting post 55 is sleeved on the third fixing post 13 and fastened with screws to improve the assembly strength of the circuit board bracket 5.

[0043] In terms of the structure of the heat dissipation component, the top of the air guide cavity 2 is provided with multiple air inlets 21 arranged circumferentially along the drive motor 3; the drive motor 3 is installed outside the air guide cavity 2, and its output shaft passes through the air guide cavity 2 and is connected to the internal fan 31. When the drive motor 3 is running, the fan 31 rotates rapidly, forming a negative pressure suction force, which draws the air inside the machine body 1 and / or the air discharged from the air diffuser section 42 of the air guide channel 4 into the air guide cavity 2 through the multiple air inlets 21, and quickly discharges it to the outside of the machine body 1 through the air outlet 72, further helping to reduce the overall temperature of the machine body 1 and improve the overall thermal balance capability of the machine.

[0044] Furthermore, the top of the air guide cavity 2 is provided with multiple air inlets 21, which are spaced apart along the circumference of the drive motor 3. By providing multiple air inlets 21, the ability to draw air from inside the machine body 1 into the air guide cavity 2 is significantly enhanced during the operation of the fan 31 driven by the drive motor 3, allowing more hot air inside the machine body 1 to be extracted and discharged in a timely manner. This structure not only improves the air circulation efficiency inside the machine body 1, forming a smoother airflow circulation channel, but also helps to slow down the accumulation rate of heat in local areas, thereby further improving the overall heat dissipation capacity and the working stability of key components, and enhancing the safety and reliability of the equipment under high load or long-term operation.

[0045] Among them, the fan 31 is a turbine fan structure, which can significantly improve the air flow speed and wind pressure intensity, thereby enhancing the air guiding effect and the cooling cycle efficiency inside the body 1.

[0046] The above structural design not only significantly improves the heat dissipation capacity of key components such as circuit board 6 and reduces the risk of high-temperature operation, but also enhances the stability, safety and service life of the equipment in high-temperature and long-term working environments.

[0047] Example 2

[0048] like Figure 1-7The cooking device shown includes the cooling protection structure described in Embodiment 1 above. The main body 1 of the cooking device has a cooking chamber 14 for heating food. A recess 16 is provided at the top of the cooking chamber 14, and a fan blade 32 and a heating tube 15 are installed within the recess 16. The output shaft of the drive motor 3 extends and passes through the recess 16, connecting to the fan blade 32. When the drive motor 3 operates, it drives the fan blade 32 to rotate, causing a stable hot air circulation within the cooking chamber 14. As the air flows, it passes through the heating tube 15, improving heat exchange efficiency and accelerating temperature equalization within the chamber. This enhances the uniformity of heating the food and improves cooking efficiency, preventing localized overheating or uneven cooking.

[0049] Furthermore, the cooking device also includes a mesh cover 7 installed on the body 1. The mesh cover 7 has an air inlet 71 on one side and an air outlet 72 on the other side. The cooking cavity 14 is provided with an air outlet 141 that communicates with the air outlet 72. This air outlet 141 is used to promptly exhaust the gas generated by the expansion of air during the heating process outside the body 1, which helps to maintain stable air pressure inside the cavity.

[0050] Of course, in this embodiment, two air inlets 71 are provided and located on both sides of the air outlet 72 respectively, so as to improve the air intake efficiency inside the body 1 and enhance the heat dissipation capacity of the body 1.

[0051] In addition to driving the fan blades 32 to form a hot air circulation, the drive motor 3 also simultaneously drives the fan 31 in the heat dissipation assembly. When the fan 31 is running, it introduces external cool air into the machine body 1 through the air guide channel 4, and makes it flow actively through key electronic components such as the circuit board 6, realizing targeted heat dissipation management for components that are susceptible to heat. During the flow of cool air, it can efficiently remove the heat accumulated around the circuit board 6, significantly reducing the operating temperature of the components and effectively avoiding component aging, performance degradation, or even damage caused by long-term high-temperature environments.

[0052] The above design significantly improves the thermal management efficiency of sensitive components such as circuit board 6, enhancing the stability and safety of the cooking equipment under high-temperature or long-term operation conditions, and further extending the lifespan of electronic components. Furthermore, hot air is ultimately exhausted to the outside of the cooking equipment by fan 31, preventing heat buildup inside the unit 1, optimizing the overall internal temperature distribution, improving overall heat dissipation performance, effectively addressing the thermal protection needs of key components, improving product quality and reliability, and demonstrating good practical value and market potential.

[0053] See Figure 7It should be noted that, in this embodiment, although the air inlet 71 and the air outlet 72 are arranged relatively close to each other, due to the strong exhaust characteristics of the cooling fan 31 as a turbine fan, the exhaust speed of the air outlet 72 is much higher than the intake speed of the air inlet 71. In addition, the hot air has the physical property of floating upward, which can effectively prevent the exhaust hot air from flowing back to the air inlet 71, reducing the risk of recirculation and heat regeneration from the source. Even if a small amount of hot air enters the air guide channel 4 through the air inlet 71 in extreme cases, the gas entering the air guide channel 4 can still maintain a low temperature state with the large amount of external cold air replenishment, effectively realizing the heat dissipation function of the circuit board 6 area.

[0054] Furthermore, since the local heat generated by the circuit board 6 during operation is significantly higher than the temperature of the mixture of a small amount of external hot air and cold air, even if a very small amount of hot air flows back during the air intake process, it will not have a substantial impact on the cooling effect of the circuit board 6.

[0055] Furthermore, it also includes a frying basket assembly 8 for holding food ingredients, which is detachably installed inside the cooking cavity 14.

[0056] In summary, the present invention's cooling protection structure and cooking equipment, combined with the air guide channel 4, precisely guides external air to the circuit board 6 area, allowing the air to actively pass through the circuit board 6 and carry away the heat of the circuit board 6 and its surroundings to achieve cooling.

[0057] This utility model's cooling protection structure and cooking equipment, through the air guide channel 4, allows air to actively flow through key electronic components such as the circuit board 6, effectively removing the heat accumulated around the components and reducing their operating temperature. Compared with the traditional method of relying on natural heat dissipation, this structure can achieve a faster and more stable heat dissipation effect, preventing the components from degrading or being damaged due to prolonged high-temperature operation, thereby extending the service life of electronic components and improving the safety and reliability of the entire machine. At the same time, this solution has a compact structure, reasonable cost control, and takes into account both practicality and economy, making it highly valuable for widespread application.

[0058] This utility model's cooling protection structure and cooking equipment allow hot air near the circuit board 6 to be continuously introduced into the air guide cavity 2 and discharged to the outside of the equipment through the air outlet 72, preventing heat from accumulating inside the body 1, improving the thermal management efficiency of sensitive components such as the circuit board 6, enhancing the stability and safety of the equipment under high temperature or long-term working conditions, extending the service life of the circuit board 6, and effectively improving the overall heat dissipation performance, overall quality, and user experience of the machine.

[0059] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0060] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module 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.

[0061] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0062] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A cooling protection structure, characterized in that, include: The machine body is equipped with a circuit board and a heat dissipation assembly. The heat dissipation assembly includes an air guide cavity, a drive motor, a fan disposed in the air guide cavity and connected to the drive motor, an air inlet, and an air outlet communicating with the air guide cavity. An air guide channel, one end of which is connected to the air inlet, and the other end of which is connected to the circuit board; When the drive motor drives the fan to rotate, external air enters from one end of the air guide channel through the air inlet and exits from the other end of the air guide channel to cool the circuit board. At the same time, the air exiting from the other end of the air guide channel and / or the air inside the machine body is introduced into the air guide cavity and then discharged to the outside through the air outlet to cool the machine body.

2. The cooling protection structure according to claim 1, characterized in that, It also includes a circuit board bracket, on which the circuit board is mounted, and the bottom of the circuit board bracket has an opening; The air guide channel includes an air intake contraction section and an air outlet diffusion section. The air intake end of the air intake contraction section is connected to the air inlet, and the air outlet end of the air outlet diffusion section is connected to the opening.

3. The cooling protection structure according to claim 2, characterized in that, The machine body is provided with a first fixed column and a second fixed column, and the gas outlet diffuser section is provided with a first connecting column and a second connecting column. The first connecting column is sleeved on the first fixed column, and the second connecting column is sleeved on the second fixed column.

4. The cooling protection structure according to claim 3, characterized in that, The bottom of the circuit board bracket is also provided with a third connecting post and a fourth connecting post. The third connecting post is inserted into the first connecting post and fastened to the first fixing post by a first fastener. The fourth connecting post is inserted into the second connecting post and fastened to the second fixing post by a second fastener.

5. The cooling protection structure according to claim 4, characterized in that, The circuit board bracket is also provided with a groove, and the circuit board is snapped into the groove and fastened by a third fastener to be fixed on the circuit board bracket.

6. The cooling protection structure according to claim 1, characterized in that, An air inlet is provided at the top of the air guide cavity, the drive motor is installed outside the air guide cavity, and the output shaft of the drive motor extends into the air guide cavity and is connected to the fan; When the drive motor drives the fan to rotate, it can cause the air inside the machine body to flow, and guide the air discharged from the other end of the air guide channel and / or the air inside the machine body into the air guide cavity through the air inlet, and then discharge it through the air outlet to achieve cooling of the machine body.

7. The cooling protection structure according to claim 6, characterized in that, The air intake is provided in multiple portions and is arranged at intervals along the circumference of the drive motor.

8. A cooking device, comprising the cooling protection structure according to any one of claims 1-7, characterized in that, The machine body is also provided with a cooking cavity for heating food. The top of the cooking cavity is provided with a recess, and a fan blade and a heating tube are provided in the recess. The output shaft of the drive motor extends into the recess and is connected to the fan blade. When the drive motor drives the fan blades to rotate, the air in the cooking cavity flows and is heated by the heating tube.

9. The cooking apparatus according to claim 8, characterized in that, It also includes a mesh cover, with the air inlet on one side and the air outlet on the other side; the cooking cavity is provided with an air vent that communicates with the air outlet.

10. The cooking apparatus according to claim 9, characterized in that, It also includes a frying basket assembly, which is detachably installed inside the cooking cavity.

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