Cold air duct structure and steam fryer

Abstract

The utility model discloses a cold air duct structure, a cold air duct structure, including the lower cover, it includes lower cavity, and the outside air inlet that communicates with the lower cavity and outside, the upper cover, it includes the upper cavity, inner chamber, outer chamber, inner air inlet and air outlet, electronic component is located in the inner chamber, when the upper cover with the lower cover is connected, the upper cavity with the lower cavity combines and forms the air inlet duct, the inner air inlet communicates the air inlet duct with the inner chamber, the air outlet communicates the inner chamber with outer chamber, to make the inner air inlet to the air outlet between the formation radiating air duct, negative pressure mechanism. The utility model provides a kind of cold air duct structure, upper and lower cover combine and form independent air inlet duct and radiating air duct, and work with negative pressure mechanism, construct a mandatory, path clear cooling air passage. Realized the efficient, directional heat dissipation of electronic component, avoided the accumulation of heat, significantly improved the heat dissipation efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of steam fryer technology, and in particular to a cold air duct structure and a steam fryer. Background Technology

[0002] In existing steam fryers or similar cooking equipment, electronic components (such as control boards and power boards) generate a lot of heat during operation. If this heat cannot be dissipated in time, it will cause the electronic components to overheat, thus affecting the stability and lifespan of the equipment. Utility Model Content

[0003] To address the aforementioned issues, this technical solution provides a cold air duct structure and a steam fryer.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A cold air duct structure, including

[0006] The lower cover includes a lower cavity and an external air inlet connecting the lower cavity to the outside.

[0007] The top cover includes an upper cavity, an inner cavity, an outer cavity, an inner air inlet, and an air outlet;

[0008] Electronic components are disposed within the cavity;

[0009] When the upper cover is connected to the lower cover, the upper cavity and the lower cavity merge to form an air inlet duct. The inner air inlet connects the air inlet duct to the inner cavity, and the air outlet connects the inner cavity to the outer cavity, so that a heat dissipation duct is formed between the inner air inlet and the air outlet.

[0010] A negative pressure mechanism, located in the outer cavity, is used to generate negative pressure, so that outside air passes through the air inlet duct and the heat dissipation duct in sequence to dissipate heat and cool the electronic components.

[0011] In the cold air duct structure described above, the electronic components include a control board disposed in the inner cavity, the inner air inlet is located on the front side wall of the inner cavity, and the air outlet includes a first through hole located on the rear side of the bottom surface of the inner cavity.

[0012] In the cold air duct structure described above, the electronic component includes a power board, and the air outlet includes a second through hole located on the rear side of the power board.

[0013] As described above, in a cold air duct structure, the inner cavity includes a horizontal cavity and a vertical cavity that are interconnected. The control board is located in the horizontal cavity, the power board is located in the vertical cavity, and the vertical cavity is divided into a front cavity and a rear cavity. The first through hole is located in the front cavity, and the second through hole is located in the rear cavity.

[0014] As described above, in a cold air duct structure, the negative pressure mechanism includes a motor and a negative pressure fan blade connected to the motor, and the air outlet includes a third through hole located at the bottom of the inner cavity and corresponding to the motor.

[0015] In the cold air duct structure described above, the upper cavity is arranged around the inner cavity, and the lower cavity is arranged correspondingly to the upper cavity.

[0016] In the cold air duct structure described above, multiple external air inlets are arranged around the periphery of the lower cover.

[0017] In the cold air duct structure described above, the opening direction of the external air inlet is downward.

[0018] A steam fryer, including a cold air duct structure as described above.

[0019] The steam fryer described above also includes an outer shell cover, the lower cover being connected to the outer shell cover, and an air inlet gap being formed between the two to communicate with the outside and the external air inlet, the outer cavity being located between the outer shell cover and the upper cover.

[0020] The beneficial effects of this application are:

[0021] This invention provides a cold air duct structure, in which the upper and lower covers are combined to form independent air intake and heat dissipation ducts, which work in conjunction with a negative pressure mechanism to construct a forced, clearly defined cooling airflow channel. Its direct effect is to achieve efficient and directional heat dissipation for electronic components within a sealed cavity, preventing heat accumulation and significantly improving heat dissipation efficiency and reliability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a diagram of the internal structure of a steam fryer;

[0024] Figure 2 This is an internal structural diagram of a cold air duct structure. Detailed Implementation

[0025] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] A cold air duct structure, including

[0027] The lower cover 1 includes a lower cavity 11 and an external air inlet 12 that connects the lower cavity 11 to the outside.

[0028] The upper cover 2 includes an upper cavity 21, an inner cavity 22, an outer cavity 23, an inner air inlet 24, and an air outlet 25;

[0029] Electronic component 3 is disposed in the inner cavity 22;

[0030] When the upper cover 2 is connected to the lower cover 1, the upper cavity 21 and the lower cavity 11 merge to form an air inlet duct 4. The inner air inlet 24 connects the air inlet duct 4 with the inner cavity 22, and the air outlet 25 connects the inner cavity 22 with the outer cavity 23, so that a heat dissipation duct 5 is formed between the inner air inlet 24 and the air outlet 25.

[0031] The negative pressure mechanism 6, located in the outer cavity 23, is used to generate negative pressure so that outside air passes through the air inlet duct 4 and the heat dissipation duct 5 in sequence to dissipate heat and cool the electronic component 3.

[0032] This invention provides a cold air duct structure, in which the upper and lower covers are combined to form independent air intake and heat dissipation ducts, which work in conjunction with a negative pressure mechanism to construct a forced, clearly defined cooling airflow channel. Its direct effect is to achieve efficient and directional heat dissipation for electronic components within a sealed cavity, preventing heat accumulation and significantly improving heat dissipation efficiency and reliability.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the electronic component 3 includes a control board 31 disposed in the inner cavity 22, the inner air inlet 24 located on the front side wall of the inner cavity 22, and the air outlet 25 including a first through hole 251 located on the rear side of the bottom surface of the inner cavity 22. By placing the inner air inlet on the front side wall and the air outlet on the rear bottom surface, the direct effect is that the cooling airflow can penetrate through the area where the control board is located, forming an effective airflow path from front to back, thereby fully covering and dissipating heat from the main heat-generating areas of the control board and avoiding heat dissipation dead zones.

[0034] Furthermore, as a preferred embodiment of this solution and not a limitation, the electronic component 3 includes a power board 32, and the air outlet 25 includes a second through hole 252 located on the rear side of the power board 32. The second through hole is provided separately for the power board, allowing the airflow passing through the power board to be independently and quickly drawn out, ensuring that the power board and high-power devices can also be effectively cooled, preventing overheating from affecting the overall performance of the device.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the inner cavity 22 includes a horizontal cavity 221 and a vertical cavity 222 that are interconnected. The control board 31 is located in the horizontal cavity 221, and the power board 32 is located in the vertical cavity 222. The vertical cavity 222 is divided into a front cavity 223 and a rear cavity 224. The first through hole 251 is located in the front cavity 223, and the second through hole 252 is located in the rear cavity 224. By dividing the inner cavity and setting the air outlets in the front and rear cavities separated by the power board, the direct effect is to achieve independent heat dissipation for the control board and the power board. The airflow paths are precisely guided and do not interfere with each other, thereby optimizing the overall heat dissipation layout and improving space utilization efficiency and targeted heat dissipation.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, the negative pressure mechanism 6 includes a motor 61 and a negative pressure fan 62 connected to the motor 61. The air outlet 25 includes a third through hole 253 located at the bottom of the inner cavity 22 and corresponding to the motor 61. By providing a third through hole at the bottom of the inner cavity directly opposite the motor, a portion of the cooling airflow can be directly blown onto or flow through the motor coils, thereby providing a direct heat dissipation path for the motor, which is one of the heat sources, effectively reducing the operating temperature of the motor and extending its service life.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation, the upper cavity 21 is arranged around the inner cavity 22, and the lower cavity 11 is arranged correspondingly to the upper cavity 21. By designing the air inlet duct (formed by merging the upper and lower cavities) to surround the inner cavity, the direct effect is that the air inlet duct can gather airflow from multiple directions, increasing the air inlet area and creating conditions for uniform airflow into the inner cavity, while making the overall structure more compact. The single-sided arrangement of the inner air inlet can increase the air pressure and improve the heat dissipation effect.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation, a plurality of the external air inlets 12 are arranged around the lower cover 1. By arranging multiple external air inlets around the perimeter, the air intake area is significantly increased, the air intake resistance is reduced, and it is ensured that the negative pressure mechanism can draw in sufficient air volume, providing adequate airflow for the entire heat dissipation system.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation, the external air inlet 12 faces downwards. Facing downwards effectively prevents dust, debris, or liquids (such as oil droplets) from above from falling directly into the air intake duct, thereby reducing the risk of duct blockage and contamination, and improving the system's reliability and service life.

[0040] The steam fryer includes a cold air duct structure as described above. This ensures that its internal electronic components maintain stable low-temperature operation even in harsh working environments with high temperature and high humidity, thereby improving the overall performance, reliability, and safety of the steam fryer.

[0041] Furthermore, as a preferred embodiment of this solution, and not a limitation thereof, it also includes an outer casing 7, with the lower casing 1 connected to the outer casing 7, forming an air intake gap 8 between them that connects to the outside and the external air inlet 12. The outer cavity 23 is located between the outer casing 7 and the upper casing 2. Utilizing the natural gap between the lower casing and the outer casing as an air intake channel eliminates the need for additional, obvious air intake holes, resulting in a simpler product appearance and providing secondary protection by concealing the air intake and preventing foreign objects from entering. In addition, utilizing the space between the outer casing and the upper casing as an outer cavity optimizes space utilization, making the structure more compact.

[0042] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A cold air duct structure, characterized in that: include The lower cover (1) includes a lower cavity (11) and an external air inlet (12) connecting the lower cavity (11) to the outside. The upper cover (2) includes an upper cavity (21), an inner cavity (22), an outer cavity (23), an inner air inlet (24), and an air outlet (25); An electronic component (3) is disposed in the cavity (22); When the upper cover (2) is connected to the lower cover (1), the upper cavity (21) and the lower cavity (11) are combined to form an air inlet duct (4), the inner air inlet (24) connects the air inlet duct (4) and the inner cavity (22), and the air outlet (25) connects the inner cavity (22) and the outer cavity (23), so that a heat dissipation duct (5) is formed between the inner air inlet (24) and the air outlet (25); The negative pressure mechanism (6) is located in the outer cavity (23) and is used to generate negative pressure so that the outside air passes through the air inlet duct (4) and the heat dissipation duct (5) in sequence to dissipate heat and cool the electronic component (3).

2. The cold air duct structure according to claim 1, characterized in that: The electronic component (3) includes a control board (31) disposed in the inner cavity (22), the inner air inlet (24) is located on the front side wall of the inner cavity (22), and the air outlet (25) includes a first through hole (251) located on the rear side of the bottom surface of the inner cavity (22).

3. The cold air duct structure according to claim 2, characterized in that: The electronic component (3) includes a power board (32), and the air outlet (25) includes a second through hole (252) located on the rear side of the power board (32).

4. The cold air duct structure according to claim 3, characterized in that: The inner cavity (22) includes a horizontal cavity (221) and a vertical cavity (222) that are interconnected. The control board (31) is located in the horizontal cavity (221), and the power board (32) is located in the vertical cavity (222). The vertical cavity (222) is divided into a front cavity (223) and a rear cavity (224). The first through hole (251) is located in the front cavity (223), and the second through hole (252) is located in the rear cavity (224).

5. A cold air duct structure according to claim 1, characterized in that: The negative pressure mechanism (6) includes a motor (61) and a negative pressure fan (62) connected to the motor (61). The air outlet (25) includes a third through hole (253) located at the bottom of the inner cavity (22) and corresponding to the motor (61).

6. The cold air duct structure according to claim 1, characterized in that: The upper cavity (21) is arranged around the inner cavity (22), and the lower cavity (11) is arranged correspondingly to the upper cavity (21).

7. A cold air duct structure according to claim 1, characterized in that: Multiple external air inlets (12) are arranged around the lower cover (1).

8. A cold air duct structure according to claim 1, characterized in that: The opening direction of the external air inlet (12) is downward.

9. A steam fryer, characterized in that: Includes a cold air duct structure as described in any one of claims 1-8.

10. The steam fryer according to claim 9, characterized in that: It also includes an outer cover (7), the lower cover (1) is connected to the outer cover (7), and an air inlet gap (8) is formed between the two to connect the outside to the outside air inlet (12), and the outer cavity (23) is located between the outer cover (7) and the upper cover (2).

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