Split type air fryer air duct structure

Abstract

This utility model discloses a split-type air fryer duct structure, including a detachably connected head assembly and a frying bucket assembly. The frying bucket assembly includes a glass frying bucket and an outer shell. The glass frying bucket is detachably installed inside the outer shell, and a heat insulation layer is formed between the outer shell and the glass frying bucket. The bottom of the outer shell has an air inlet hole communicating with the heat insulation layer, and the top of the frying bucket assembly has a first ventilation hole communicating with the heat insulation layer. The head assembly contains a heat dissipation channel and a fan. The heat dissipation channel has an exhaust port at the rear of the head assembly and a second ventilation hole communicating with the first ventilation hole. The fan exhausts air from the heat dissipation channel into the head assembly, creating a negative pressure state in the head assembly. This allows outside air to enter the heat dissipation channel from the air inlet hole, through the heat insulation layer, the first ventilation hole, and the second ventilation hole. This utility model, by setting an outer shell around the glass frying bucket and forming a heat insulation layer, with the heat insulation layer communicating with the heat dissipation channel, allows air to flow within the heat insulation layer, further cooling the outer shell temperature. The outer shell surface temperature rise meets European certification standards.

Description

Technical Field

[0001] This utility model relates to the field of air fryer technology, specifically to a split-type air fryer duct structure. Background Technology

[0002] Currently, top-loading air fryers consist of a top-loading main unit and a glass frying drum, with the main unit mounted on top of the drum. The glass drum provides a 360-degree view of the cooking cavity. However, the surface temperature of the glass drum is relatively high, failing European safety standards and preventing its sale in the European market. Utility Model Content

[0003] The purpose of this invention is to provide a split-type air fryer duct structure that reduces the outer surface temperature.

[0004] The purpose of this utility model is achieved as follows.

[0005] A split-type air fryer duct structure includes a head assembly and a frying drum assembly. The head assembly is detachably mounted on top of the frying drum assembly. The frying drum assembly includes a glass frying drum and an outer shell. The glass frying drum is detachably installed inside the outer shell, and a heat insulation layer is formed between the outer shell and the glass frying drum. The bottom of the outer shell has an air inlet that connects to the heat insulation layer. The top of the frying drum assembly has several first ventilation holes surrounding the glass frying drum. The first ventilation holes are connected to the heat insulation layer. The head assembly has a heat dissipation channel and a fan. The heat dissipation channel has an exhaust port at the rear of the head assembly and several second ventilation holes at the bottom of the head assembly. After the head assembly and the frying drum assembly are connected, the corresponding first and second ventilation holes are aligned vertically, so that the heat insulation layer and the heat dissipation channel are connected. The fan exhausts the air in the heat dissipation channel from the head assembly, and the head assembly is in a negative pressure state, so that outside air enters the heat dissipation channel from the air inlet through the heat insulation layer, the first ventilation holes, and the second ventilation holes.

[0006] Furthermore, the top of the outer shell is provided with a frame to restrict the horizontal movement of the glass frying barrel, and the top surface of the frame is provided with the first ventilation hole. The frame not only restricts the horizontal movement of the glass frying barrel, but also, to some extent, hides the heat insulation layer, preventing foreign objects from directly entering the heat insulation layer from the top.

[0007] Furthermore, the top of the glass frying barrel extends upwards to form the top surface of the frying barrel assembly. The bottom surface of the machine head assembly has a first annular stepped surface and a second annular stepped surface arranged sequentially from the outside in. A heating cavity is provided within the second annular stepped surface, containing a heating device and a heat guiding device. After the machine head assembly and the frying barrel assembly are connected, the top surface of the frying barrel assembly abuts against the first annular stepped surface, and the top of the glass frying barrel abuts against the second annular stepped surface. The heat guiding device delivers the heat generated by the heating device into the glass frying barrel. Heating inside the glass frying barrel and heat dissipation from the insulation layer do not interfere with each other.

[0008] Furthermore, a second ventilation hole is provided on the surface of the first annular step, and the diameter of the second ventilation hole is larger than that of the first and second ventilation holes. This ensures smooth airflow from the insulation layer to the heat dissipation channel.

[0009] Furthermore, a retaining wall is provided on the outer side of the first annular step surface of the bottom surface of the head assembly, and the retaining wall and the outer side of the top of the glass frying barrel are matched for limiting fit. The head assembly and the frying barrel assembly are easy to install, and the head assembly is not easy to fall off by itself.

[0010] Furthermore, the fan includes a motor and cooling fan blades. The motor's output shaft drives the cooling fan blades to rotate within the heat dissipation channel. A flow guiding device is located above the heating device, and the flow guiding device is a flow guiding fan blade. The motor's output shaft extends into the heating cavity to drive the flow guiding fan blades to rotate. The overall structure is compact, which helps to reduce the size.

[0011] Furthermore, several of the aforementioned air inlets are arranged in a ring around the bottom of the outer casing, surrounding the glass blasting barrel. This ensures uniform airflow and thus even heat dissipation around the outer casing.

[0012] Furthermore, the outer shell features a viewing area. Users can directly observe the food cooking process through this viewing area and the glass frying tub.

[0013] Furthermore, the outer casing may be partially or entirely made of transparent plastic, with the transparent plastic portion constituting the transparent area. The transparent area is easy to manufacture and easily passes temperature rise standard tests.

[0014] This invention features an outer shell around the glass frying barrel, with a heat insulation layer between them. The heat insulation layer is connected to the heat dissipation channel of the frying head assembly, allowing air to circulate within the heat insulation layer and further cooling the outer shell temperature. The temperature rise of the outer shell surface meets European certification standards. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the usage state of Embodiment 1.

[0016] Figure 2 This is a schematic diagram of the structure of the head assembly and the frying barrel assembly after they are separated in Example 1.

[0017] Figure 3 This is a cross-sectional structural diagram of Example 1.

[0018] Figure 4 This is a schematic diagram of the head assembly in Embodiment 1.

[0019] Figure 5 This is a schematic diagram of the structure of the frying barrel assembly in Example 1. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1, see Figure 1-5 As shown, a split-type air fryer duct structure includes a head assembly 1 and a frying drum assembly 2. The head assembly 1 is detachably attached to the top of the frying drum assembly 2.

[0022] The frying drum assembly 2 includes a glass frying drum 21 and a shell 22. The glass frying drum 21 is detachably installed inside the shell 22. A heat insulation layer 23 is formed between the shell 22 and the glass frying drum 21. The bottom of the shell 22 is provided with an air inlet 24 communicating with the heat insulation layer 23. Several air inlets 24 are arranged in a ring around the bottom of the shell 22 around the glass frying drum 21. The top of the frying drum assembly 2 is provided with several first ventilation holes 25 surrounding the glass frying drum 21. The first ventilation holes 25 are communicating with the heat insulation layer 23. The top of the shell 22 is provided with a frame 26 that restricts the horizontal movement of the glass frying drum 21. The top surface of the frame 26 is provided with the first ventilation holes 25. The top of the glass frying drum 21 extends upward beyond the top surface of the frying drum assembly 2.

[0023] The bottom of the inner cavity of the outer shell 22 is provided with a support frame 27, and the bottom of the glass frying barrel 21 sits on the support frame 27. The support frame 27 prevents the glass frying barrel 21 and the bottom of the outer shell 22 from directly contacting each other for heat conduction.

[0024] In this embodiment, the outer casing 22 has a transparent area. Preferably, the outer casing 22 is partially or entirely made of transparent plastic, and the transparent plastic portion constitutes the transparent area. When the outer casing 22 is entirely made of transparent plastic, the frying barrel assembly 2 retains a 360-degree visibility effect.

[0025] The head assembly 1 is equipped with a heat dissipation channel 10 and a fan 3. The heat dissipation channel 10 has an exhaust port 11 at the rear of the head assembly and several second ventilation holes 12 at the bottom of the head assembly 1. The bottom surface of the head assembly 1 has a first annular stepped surface 13 and a second annular stepped surface 14 arranged sequentially from the outside in. A heating cavity 15 is provided within the second annular stepped surface 14, and a heating device 4 and a flow guiding device are provided within the heating cavity 15. A surrounding wall 17 is provided on the outer side of the first annular stepped surface 13 on the bottom surface of the head assembly 1. Preferably, the heating device 4 and the flow guiding device are shielded by a perforated protective cover 16. The second ventilation holes 12 are provided on the first annular stepped surface 13, and the diameter of the second ventilation holes 12 is larger than the diameter of the first and second ventilation holes 12.

[0026] The fan 3 includes a motor 31 and a cooling fan blade 32. The output shaft of the motor 31 drives the cooling fan blade 32 to rotate within the heat dissipation channel 10. A flow guiding device is located above the heating device 4. The flow guiding device is a flow guiding fan blade 33. The output shaft of the motor 31 extends into the heating cavity 15 and drives the flow guiding fan blade 33 to rotate. The heating device 4 is a heating element.

[0027] After the head assembly 1 and the frying drum assembly 2 are connected, the enclosure 17 and the outer top of the glass frying drum 21 are fitted together. The top surface of the frying drum assembly 2 abuts against the first annular step surface 13, and the top of the glass frying drum 21 abuts against the second annular step surface 14. The flow guiding device delivers the heat generated by the heating device 4 into the glass frying drum 21 to cook the food inside the glass frying drum 21.

[0028] At the same time, the corresponding first ventilation hole 25 and second ventilation hole 12 are aligned vertically, so that the heat insulation layer 23 and the heat dissipation channel 10 are connected. The heat dissipation fan blades 32 of the fan 3 exhaust the air in the heat dissipation channel 10 and the head assembly 1 is in a negative pressure state, so that the outside air enters the heat dissipation channel 10 from the air inlet 24 through the heat insulation layer 23, the first ventilation hole 25 and the second ventilation hole 12, that is, to dissipate heat from the outer shell 22 and the head assembly 1, thereby controlling the surface temperature of the outer shell 22 and the head assembly 1.

[0029] The terms used in this utility model, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are only used for distinction.

[0030] In this utility model, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0031] In this utility model, terms indicating direction or location such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.

[0032] Terms used in this invention, such as "approximately," "overall," "approximately," and "similar," are limiting terms used to indicate features that exist but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context.

Claims

1. A split-type air fryer duct structure, comprising a head assembly and a frying drum assembly, wherein the head assembly is detachably mounted on top of the frying drum assembly, characterized in that, The frying barrel assembly includes a glass frying barrel and an outer shell. The glass frying barrel is detachably installed inside the outer shell, forming a heat insulation layer between the outer shell and the glass frying barrel. The bottom of the outer shell has an air inlet that connects to the heat insulation layer. The top of the frying barrel assembly has several first ventilation holes surrounding the glass frying barrel, which are connected to the heat insulation layer. The head assembly has a heat dissipation channel and a fan. The heat dissipation channel has an exhaust port at the rear of the head assembly and several second ventilation holes at the bottom of the head assembly. After the head assembly and the frying barrel assembly are connected, the corresponding first and second ventilation holes are aligned vertically, so that the heat insulation layer and the heat dissipation channel are connected. The fan exhausts the air in the heat dissipation channel from the head assembly, and the head assembly is in a negative pressure state, so that outside air enters the heat dissipation channel from the air inlet, through the heat insulation layer, the first ventilation holes, and the second ventilation holes.

2. The split-type air fryer duct structure according to claim 1, characterized in that, The top of the outer casing is provided with a frame that restricts the horizontal movement of the glass frying barrel, and the top surface of the frame is provided with the first ventilation hole.

3. The split-type air fryer duct structure according to claim 1, characterized in that, The top of the glass frying barrel extends upward to form the top surface of the frying barrel assembly. The bottom surface of the machine head assembly has a first annular step surface and a second annular step surface from the outside to the inside. The second annular step surface has a heating cavity, which contains a heating device and a flow guiding device. After the machine head assembly and the frying barrel assembly are connected, the top surface of the frying barrel assembly abuts against the first annular step surface, and the top of the glass frying barrel abuts against the second annular step surface. The flow guiding device delivers the heat generated by the heating device into the glass frying barrel.

4. The split-type air fryer duct structure according to claim 3, characterized in that, The second ventilation hole is provided on the surface of the first annular step, and the diameter of the second ventilation hole is larger than the diameter of the first and second ventilation holes.

5. The split-type air fryer duct structure according to claim 3, characterized in that, The bottom surface of the machine head assembly is provided with a wall outside the first annular step surface, and the wall is matched with the outer limit of the top of the glass blasting barrel.

6. The split-type air fryer duct structure according to claim 3, characterized in that, The fan includes a motor and cooling fan blades. The output shaft of the motor drives the cooling fan blades to rotate in the heat dissipation channel. The flow guiding device is located above the heating device. The flow guiding device is a flow guiding fan blade. The output shaft of the motor extends into the heating cavity and drives the flow guiding fan blade to rotate.

7. The split-type air fryer duct structure according to claim 1, characterized in that, Several of the aforementioned air inlets are arranged in a ring around the bottom of the outer casing, surrounding the glass frying barrel.

8. The split-type air fryer duct structure according to claim 1, characterized in that, The outer casing has a transparent area.

9. The split-type air fryer duct structure according to claim 8, characterized in that, The outer shell is partially or entirely made of transparent plastic, and the transparent plastic portion constitutes the transparent area.

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