CN219557029U - Exhaust hood, machine head assembly and cooking utensil - Google Patents

Abstract

The utility model provides a exhaust hood, aircraft nose subassembly and cooking utensil, the exhaust hood includes the exhaust hood body, the exhaust hood body is provided with the intercommunication a plurality of exhaust holes of exhaust hood body inner chamber and external, a plurality of the exhaust hole is followed the circumference interval setting of exhaust hood body, just the exhaust hole is followed the circumference of exhaust hood body extends, and the heat dissipation wind can be arranged outside the exhaust hood through this exhaust hole to realize the heat dissipation of airing exhaust, in order to improve the ventilation area of exhaust hole in limited space, improved the space utilization of exhaust hood.

Description

Exhaust hood, machine head assembly and cooking utensil

Technical Field

The disclosure relates to the field of cooking devices, and in particular relates to an exhaust hood, a machine head assembly and a cooking appliance.

Background

With the continuous improvement of the living standard of people, various cooking utensils in a kitchen are adopted, and the air fryer is one of the cooking utensils and is attracting attention.

In current air fryers, centrifugal fan blades are usually adopted to blow hot air generated by a heating tube into a cooking cavity so as to heat food materials. In order to facilitate air discharge and heat dissipation of the air fryer, the air fryer further comprises an exhaust hood, the exhaust hood is provided with ventilation holes, the ventilation area of the exhaust hood is insufficient at present, and the heat dissipation effect is poor.

Disclosure of Invention

The main object of the present disclosure is to provide a hood, a head assembly and a cooking appliance to improve heat dissipation effect.

Aiming at the purposes, the present disclosure provides the following technical scheme:

in one aspect of the present disclosure, there is provided a hood comprising a hood body provided with a plurality of exhaust holes communicating with an inner cavity of the hood body and the outside, the exhaust holes being disposed along a circumferential interval of the hood body, and the exhaust holes being disposed along a circumferential direction of the hood body.

The exhaust hood provided by the disclosure comprises an exhaust hood body, wherein the exhaust hood body is provided with an exhaust hole extending along the circumferential direction of the exhaust hood body, and heat dissipation airflow can be exhausted out of the exhaust hood through the exhaust hole, so that exhaust heat dissipation is realized, the ventilation area of the exhaust hole is increased in a limited space, and the space utilization rate of the exhaust hood is increased.

In an exemplary embodiment of the present disclosure, the exhaust holes are arranged in a plurality of groups at intervals along a circumferential direction of the exhaust hood body, and each group of exhaust holes includes a plurality of exhaust holes arranged at intervals along a height direction of the exhaust hood.

Optionally, the exhaust hood further comprises a decoration hood, the decoration hood is arranged on the outer side of the exhaust hood body, the decoration hood is provided with decoration holes, the decoration holes extend along the circumferential direction of the exhaust hood body, and the decoration holes are aligned with the exhaust holes. The utility model discloses a set up the decorative cover through the outside at the exhaust hood body to improve the structural strength of exhaust hood. Further, through decoration hole and exhaust hole counterpoint setting, through exhaust hole exhaust heat dissipation wind flow can directly enter into the decoration hole after the exhaust and discharge outside the exhaust hood, so reduced the heat dissipation wind flow in-process and contacted with the barrier, reduced the windage to the radiating effect of aircraft nose subassembly has been improved.

Specifically, the dimension L1 of the exhaust hole along the height direction of the exhaust hood satisfies the condition that L1 is less than or equal to 2.5mm and less than or equal to 6mm. When the dimension L1 of the exhaust hole along the height direction of the exhaust cover is smaller than 2.5mm, the exhaust area of the exhaust hole is smaller, the ventilation quantity of the exhaust cover is insufficient, and the exhaust heat dissipation of the machine head assembly is not facilitated. When the dimension L1 of the exhaust hole along the height direction of the exhaust cover is larger than 6mm, the area of the exhaust hole is overlarge, and external sundries easily enter the machine head assembly through the exhaust hole and collide with the cooling fan to influence the use safety of the machine head assembly.

Further, the dimension L2 of the wind shielding ribs between the adjacent exhaust holes in each group of exhaust holes along the height direction of the exhaust hood satisfies that L2 is less than or equal to 2mm and less than or equal to 3mm. When the dimension L2 of the wind shielding ribs between the adjacent exhaust holes along the height direction of the exhaust hood is smaller than 2mm, the structural strength of the wind shielding ribs is insufficient, so that the structural strength of the exhaust hood is poor, and the use safety of the machine head assembly is not facilitated. When the dimension L2 of the wind shielding ribs between the adjacent exhaust holes along the height direction of the exhaust hood is more than 3mm, the dimension of the wind shielding ribs along the height direction of the exhaust hood is too wide, the exhaust area is affected, and the air exhaust and heat dissipation of the machine head assembly are not facilitated.

According to another exemplary embodiment of the present disclosure, a central angle delta of the exhaust hood body corresponding to the exhaust hole satisfies 30 degrees delta < 180 degrees. When the central angle delta of the exhaust hood body corresponding to the exhaust hole is smaller than 30 degrees, the length of the exhaust hole along the circumferential direction of the exhaust hood body is insufficient, so that the ventilation area of the exhaust hole is insufficient, and ventilation of the exhaust hood is not facilitated. When the central angle delta of the exhaust hood body corresponding to the exhaust hole is larger than or equal to 180, the length of the exhaust hole along the circumferential direction of the exhaust hood body is too large, so that the structural strength of the exhaust hood is insufficient, and the exhaust hood is easy to deform.

In another aspect of the present disclosure, a nose assembly is provided that includes a nose base and a hood as described above, the hood being disposed below the nose base.

In another exemplary embodiment of the disclosure, the nose assembly further includes a heat dissipating fan rotatably connected below the nose seat, the heat dissipating fan includes a plurality of blades arranged at intervals along a circumferential direction of the nose assembly, at least a portion of a windward side of the blades is a curved surface, and the curved surface is curved and extended from a middle portion to an edge of the heat dissipating fan against a rotation direction of the heat dissipating fan. According to the fan blade, at least one part of the windward side of the fan blade is a curved surface, the curved surface can play a good guiding role when hot air is in centrifugal motion, the wind resistance of the cooling fan is reduced, the running noise of the machine head assembly is reduced, and the user experience is improved.

Optionally, the windward surface of the fan blade further includes a plane, the plane is connected to an end of the curved surface, which is close to or far from the center of the cooling fan, and on a projection plane perpendicular to the axis of the cooling fan, the plane is tangent to the end of the curved surface connected with the plane, so that the plane and the curved surface are in smooth transition, and the plane has a good guiding effect on the gas.

In another aspect of the present disclosure, a cooking appliance is provided that includes a pan body assembly having a cooking cavity and a head assembly as described above, the head assembly being connected to the pan body assembly and disposed above the cooking cavity.

Drawings

The foregoing and/or other objects and advantages of the disclosure will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a block diagram of a cooking appliance according to an exemplary embodiment of the present disclosure.

Fig. 2 is a longitudinal sectional view of the cooking appliance of fig. 1.

Fig. 3 is an exploded view of a head assembly of the cooking appliance of fig. 1.

Fig. 4 is an exploded view of the handpiece assembly of fig. 1.

Fig. 5 is a view showing a structure of the hood in fig. 1.

Fig. 6 is a front view of the hood of fig. 5.

Fig. 7 is a cross-sectional view A-A of the hood of fig. 6.

Fig. 8 is a B-B cross-sectional view of the hood of fig. 6.

FIG. 9 is a top view of a handpiece assembly provided in an exemplary embodiment in FIG. 1.

FIG. 10 is a C-C cross-sectional view of the handpiece assembly of FIG. 9.

FIG. 11 is a D-D cross-sectional view of the handpiece assembly of FIG. 9.

FIG. 12 is an E-E cross-sectional view of the handpiece assembly of FIG. 10.

Reference numerals illustrate:

1. a handpiece assembly; 2. A pan body assembly;

11. a headstock body; 12. An exhaust hood;

13. a heat radiation fan; 14. A driving motor;

15. a fan; 16. A heating member;

17. a protective cover; 18. A cover body;

19. a lining; 21. An outer pot;

22. an inner pot; 23. A fry basket;

111. an air inlet hole; 112. A housing air outlet hole;

121. a hood body; 122. An exhaust hole;

123. a decorative cover; 124. A decoration hole;

125. a connecting rib; 126. A connection part;

131. a fan connection; 132. And (3) a fan blade.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the embodiments of the present disclosure should not be construed as limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

Referring to fig. 1 to 4, one aspect of the present disclosure provides a cooking appliance including a head assembly 1 and a pot assembly 2, wherein the pot assembly 2 has a cooking cavity for receiving food materials, and the head assembly 1 is disposed above the pot assembly 2 to be capable of being covered on the pot assembly 2. In the cooking process, the machine head assembly 1 can be covered above the pot body assembly 2, so that the cooking cavity is in a heat preservation state, and the heat utilization rate is improved.

The embodiment is described in detail by taking an air fryer as an example, but the embodiment is not limited to the air fryer, and the cooking utensil can also be other cookers. In the related art, the air fryer heats the food material using hot air, and the guide fan 15 rotates to blow the hot air generated from the heating tube into the cooking cavity to heat the food material.

Alternatively, the air fryer may be a flip-type air fryer, in which case, the head assembly 1 may be pivotally connected to one side of the pot body assembly 2, as shown in fig. 3, and the head assembly 1 may be connected to one side of the pot body assembly 2 through a shaft, but not limited thereto, and may be a drawer-type air fryer (not shown), but not limited thereto.

Specifically, the pot body assembly 2 includes an outer pot 21, an inner pot 22, and a fry basket 23, wherein the outer pot 21 has an inner cavity, the inner pot 22 is disposed in the inner cavity, the inner cavity of the inner pot 22 is formed as a cooking cavity, and the fry basket 23 is disposed in the cooking cavity, but not limited thereto. In order to increase the circulation speed of the hot air, the frying basket 23 is provided with ventilation holes for the hot air to pass through, but not limited thereto.

With continued reference to the drawings, the nose assembly 1 includes a nose seat 11 and an exhaust hood 12, the nose seat 11 is disposed above the pan body assembly 2, and can be used as a main bearing component of the nose assembly 1, for example, but not limited to, the nose seat 11 is rotatably connected to one side of the pan body assembly 2 through a rotating shaft in the present embodiment, so as to form a flip-type air fryer, but not limited thereto.

In this embodiment, the headstock 11 is in a shell structure, an air inlet 111 is provided on a side wall of the headstock 11, a shell air outlet 112 (as shown in fig. 4) is provided on a bottom wall of the headstock 11, external air enters into an inner cavity of the headstock 11 through the air inlet 111 to cool components in the headstock 11, then enters into an inner cavity of an exhaust hood 12 below the headstock 11 through the shell air outlet 112, and is discharged to the outside under the action of a cooling fan 13 (described below) to complete cooling of the headstock assembly 1.

With continued reference to fig. 1 and 12, as an example, a hood 12 is disposed below the headstock 11, such as, but not limited to, the hood 12 being secured to the headstock 11.

The hood 12 includes a hood body 121, and the hood body 121 has a substantially cylindrical structure, for example, but not limited to, a top end of the hood body 121 abuts against a bottom wall of the headstock 11. The exhaust hood body 121 is provided with a plurality of exhaust holes 122 communicating the inner cavity of the exhaust hood body 121 with the outside, the exhaust holes 122 are arranged at intervals along the circumferential direction of the exhaust hood body 121, and the exhaust holes 122 extend along the circumferential direction of the exhaust hood body 121.

The exhaust hood 12 provided by the present disclosure comprises an exhaust hood body 121, wherein the exhaust hood body 121 is provided with an exhaust hole 122 extending along the circumferential direction of the exhaust hood body 121, and the heat dissipation airflow can be exhausted out of the exhaust hood 12 through the exhaust hole 122, so as to realize exhaust and heat dissipation, so that the ventilation area of the exhaust hole 122 is increased in a limited space, and the space utilization rate of the exhaust hood 12 is increased. Further, the exhaust hole 122 extends along the circumferential direction of the hood body 121, so that the ventilation area of the exhaust hole 122 is increased, and the exhaust effect of the hood 12 is improved.

The exhaust hood 12 further includes a connection portion 126, and the exhaust hood 12 may be connected to the headstock 11 through the connection portion 126, but is not limited thereto.

As an example, referring to fig. 5 to 8 and 12, the hood 12 is provided with a connection portion 126, and the connection portion 126 is disposed in the inner cavity of the hood body 121, for example, but not limited to, the connection portion 126 extends from the inner wall of the hood body 121 along the axial direction of the hood 12, so that the hood 12 may be connected to the headstock 11 through the connection portion 126, but not limited thereto.

As an example, in the present embodiment, the connection portion 126 may be a screw column, and the screw column extends upward from the hood body 121 substantially along the height direction of the nose assembly 1, but is not limited thereto. Further, the plurality of connection portions 126 are provided, but not limited to, in the circumferential direction of the hood 12 at equal angular intervals.

With continued reference to the drawings, the exhaust holes 122 are arranged in a plurality of groups at intervals along the circumferential direction of the hood body 121, and each group of exhaust holes 122 includes a plurality of exhaust holes 122 arranged at intervals along the height direction of the hood 12.

Specifically, the hood body 121 is substantially cylindrical and extends continuously in the circumferential direction of the head assembly 1.

In order to improve the structural strength of the exhaust hood 12, the machine head assembly 1 further comprises a decorative cover 123, the decorative cover 123 is arranged on the outer side of the exhaust hood body 121, the decorative cover 123 is provided with decorative holes 124, the decorative holes 124 extend along the circumferential direction of the exhaust hood body 121, the decorative holes 124 are aligned with the exhaust holes 122, and heat dissipation airflow discharged through the exhaust holes 122 can directly enter the decorative holes 124 and then be discharged out of the exhaust hood 12, so that contact with obstacles in the heat dissipation airflow discharging process is reduced, wind resistance is reduced, and the heat dissipation effect of the machine head assembly 1 is improved.

As an example, the hood body 121 provided in an exemplary embodiment of the present disclosure may be a metal product to further increase the structural strength of the hood 12. In addition, the decorative cover 123 may be made of a different material from the hood body 121, thereby reducing the manufacturing cost of the hood 12. In this embodiment, the hood body 121 and the decorative cover 123 are connected at axial ends to improve the structural strength of the hood 12.

Referring to FIG. 6, each set of exhaust holes 122 includes a plurality of exhaust holes 122 spaced apart along the height direction of the hood 12, and the dimension L1 of the exhaust holes 122 along the height direction of the hood 12 satisfies 2.5 mm.ltoreq.L1.ltoreq.6mm. When the dimension L1 of the exhaust hole 122 in the height direction of the exhaust hood 12 is smaller than 2.5mm, the exhaust area of the exhaust hole 122 is smaller, and the ventilation amount of the exhaust hood 12 is insufficient, so that the exhaust and heat dissipation of the machine head assembly 1 are not facilitated. When the dimension L1 of the exhaust hole 122 in the height direction of the hood 12 is greater than 6mm, the area of the exhaust hole 122 is excessively large, and foreign objects easily enter the head assembly 1 through the exhaust hole 122, collide with the heat radiation fan 13 (described later), and affect the use safety of the head assembly 1.

As an example, the present embodiment is described with the dimension L1 of the exhaust hole 122 along the height direction of the exhaust hood 12 being 3.5mm, but not limited thereto, the dimension L1 of the exhaust hole 122 along the height direction of the exhaust hood 12 may be selected according to practical requirements.

Further, the dimension L2 of the wind shielding ribs between the adjacent exhaust holes 122 in each group of exhaust holes 122 along the height direction of the exhaust hood 12 satisfies that L2 is less than or equal to 2mm and less than or equal to 3mm, and when the dimension L2 of the wind shielding ribs between the adjacent exhaust holes 122 along the height direction of the exhaust hood 12 is less than 2mm, the structural strength of the wind shielding ribs is insufficient, resulting in poor structural strength of the exhaust hood 12 and being unfavorable for the use safety of the nose assembly 1. When the dimension L2 of the wind shielding ribs between the adjacent exhaust holes 122 along the height direction of the exhaust hood 12 is greater than 3mm, the dimension of the wind shielding ribs along the height direction of the exhaust hood 12 is too wide, which affects the exhaust area and is not beneficial to exhaust and heat dissipation of the machine head assembly 1.

As an example, the present embodiment is illustrated with the dimension L2 of the wind shielding rib between the adjacent exhaust holes 122 along the height direction of the exhaust hood 12 being 2.5mm, but not limited thereto, the dimension L2 of the wind shielding rib between the adjacent exhaust holes 122 along the height direction of the exhaust hood 12 may be selected according to practical needs.

Referring to fig. 7, in order to further improve the structural strength of the hood 12, a connection rib 125 is provided between the hood body 121 and the decorative cover 123, for example, but not limited to, the connection rib 125 continuously extends in the circumferential direction of the hood 12, or the connection rib 125 is plural, the plural connection ribs 125 are disposed at intervals in the circumferential direction of the hood 12, and each connection rib 125 extends in the axial direction of the hood 12 to further improve the structural strength of the hood 12.

The exhaust hole 122 provided in the present embodiment is a strip-shaped hole extending along the circumferential direction of the exhaust hood 12, that is, the extending direction of the exhaust hole 122 is perpendicular to the height direction of the exhaust hood 12, that is, the exhaust hole 122 is a transverse hole extending along the circumferential direction of the exhaust hood 12, but not limited thereto.

With continued reference to FIG. 7, further, the central angle δ of the hood body 121 corresponding to each exhaust hole 122 satisfies 30+.δ < 180 °. When the central angle δ of the exhaust hood body 121 corresponding to the exhaust hole 122 is smaller than 30 °, the length of the exhaust hole 122 along the circumferential direction of the exhaust hood body 121 is insufficient, so that the ventilation area of the exhaust hole 122 is insufficient, which is not beneficial to ventilation of the exhaust hood 12. When the central angle δ of the hood body 121 corresponding to the exhaust hole 122 is greater than or equal to 180, the length of the exhaust hole 122 along the circumferential direction of the hood body 121 is too large, resulting in insufficient structural strength of the hood 12, and the hood 12 is easy to deform.

As an example, the present disclosure is described taking 4 sets of exhaust holes 122 arranged along the circumferential direction of the exhaust hood 12 as an example, and the central angle δ of the hood body 121 corresponding to each exhaust hole 122 is approximately 90 °, but is not limited thereto.

With continued reference to fig. 1-4 and 10-12, the nose assembly 1 further includes a cooling fan 13, where the cooling fan 13 is configured to drive a flow of air in the cavity of the nose base 11, so as to form a cooling air flow, so as to cool the devices in the nose base 11. As an example, the heat dissipating fan 13 is rotatably connected to the headstock 11, but not limited thereto.

Specifically, referring to fig. 12, the heat radiation fan 13 includes a plurality of blades 132 arranged at intervals in the circumferential direction of the head assembly 1, at least a part of the windward side of the blades 132 is curved, and the curved surface is curved and extended from the middle to the edge of the heat radiation fan 13 against the rotation direction of the heat radiation fan 13. The direction indicated by the arrow with an arc in fig. 12 is the rotation direction of the heat radiation fan 13.

In this embodiment, at least a part of the windward side of the fan blade 132 is a curved surface, and the curved surface can play a good role in guiding when the hot air is in centrifugal motion, so that the wind resistance of the cooling fan 13 is reduced, the running noise of the machine head assembly 1 is reduced, and the user experience is improved.

As an example, the cooling fan 13 further includes a fan connecting member 131, the fan connecting member 131 is disposed at a middle portion of the cooling fan 13 and has a disc-shaped structure, and the plurality of fan blades 132 are disposed at intervals along a circumferential direction of the cooling fan 13 at an outer periphery of the fan connecting member 131, but not limited thereto.

As an example, the projection of the curved surface on the projection plane perpendicular to the rotation axis direction of the heat radiation fan 13 is arc-shaped, but not limited thereto. It is understood that the projection of the curved surface on the projection plane perpendicular to the rotation axis direction of the heat dissipating fan 13 is configured to be curved and extended in an arc shape from the middle to the edge of the heat dissipating fan 13 along the opposite direction of the rotation direction of the heat dissipating fan 13, but not limited thereto.

The fan connecting piece 131 is arranged in the middle of the cooling fan 13, the inner ends of the fan blades 132 along the radial direction of the cooling fan 13 are connected to the fan connecting piece 131, and the fan connecting piece plays a good guiding role when cooling air flows do centrifugal movement, so that the wind resistance of the cooling fan 13 is reduced, the running noise of the cooling fan 13 is reduced, and the user experience is improved.

Optionally, for convenience of description, the embodiment takes a curved surface of the windward surface of the fan 132 as an example, but not limited thereto, the windward surface of the fan 132 may further include a plane (not shown) connected to an end of the curved surface near or far from the center of the cooling fan 13, and on a projection plane perpendicular to the axis of the cooling fan 13, the plane is tangent to an end of the curved surface connected thereto, so that the plane and the curved surface are smoothly transited, and the air (cooling airflow) is guided well.

In order to drive the cooling fan 13 to rotate, the nose assembly 1 further comprises a driving motor 14, the driving motor 14 is connected to the nose seat 11, the cooling fan 13 is located below the driving motor 14 and is arranged in the inner cavity of the exhaust hood 12, after the driving motor 14 is started, the cooling fan 13 rotates under the action of the driving motor 14, negative pressure is generated in the nose seat 11, air enters the inner cavity of the nose seat 11 through the air inlet 111, and then leaves the nose seat 11 through the shell air outlet 112, so that heat of devices in the nose seat 11 is taken away, and heat dissipation is achieved. The air flows from the middle to the edge of the hood 12 in the hood 12 to flow through the exhaust holes 122 to leave the hood 12 by the heat radiation fan 13.

With continued reference to fig. 1-4, the nose assembly 1 further includes a cover 18, the cover 18 being secured to the nose base 11, such as, but not limited to, the cover 18 being disposed below the hood 12. As an example, the bottom end of the exhaust hood 12 may abut against the cover 18 to improve connection reliability of the cover 18 and prevent the cover 18 from shaking. The lid 18 can be snapped over the pan assembly 2, such as, but not limited to, the peripheral edge of the lid 18 can be sealed over the top edge of the inner pan 22.

To facilitate operator viewing of the cooking of the food items in the cooking chamber, the cover 18 may be a see-through member, such as, but not limited to, a high temperature resistant glass member, for example.

With continued reference to fig. 3 and 4, the head assembly 1 further includes an inner liner 19, the inner liner 19 being disposed below the hood 12, such as, but not limited to, the inner liner 19 abutting the bottom end of the hood 12. The inner lining 19 divides the space in the cooking utensil into a heat dissipation cavity and a cooking cavity, the heat dissipation cavity is arranged above the inner lining 19 and is surrounded by the headstock 11, the exhaust hood 12 and other parts. The specific heat dissipation channel is: the air inlet hole 111, the inner cavity of the headstock 11, the inner cavity of the exhaust hood 12 and the exhaust hole 122 form a heat dissipation channel. The cooking cavity is disposed below the inner liner 19 and may be surrounded by the inner pot 22, but is not limited thereto.

Referring to fig. 3, the head assembly 1 further includes a guide fan 15, the guide fan 15 being spaced below the heat radiation fan 13 in a height direction of the cooking appliance, and a liner 19 being disposed between the heat radiation fan 13 and the guide fan 15. Specifically, the guide fan 15 is rotatably connected to an output shaft of the driving motor 14, and the guide fan 15 is disposed below the heat radiation fan 13 at intervals in a height direction of the cooking appliance.

The head assembly 1 may further include a heating member 16 connected to the head base 11 and disposed below the guide fan 15, such that the guide fan 15 can blow the gas heated by the heating member 16 into the cooking cavity to heat the food.

In order to improve the use safety of the nose assembly 1, the nose assembly 1 further comprises a protective cover 17 for wrapping the fan 15 and the heating element 16, so as to avoid accidents caused by accidental contact between a user and the fan 15 or the heating element 16, thereby improving the use safety of the nose assembly 1. As an example, the protective cover 17 may be a refractory metal member, but is not limited thereto.

Further, by arranging the exhaust holes 122 to extend in the circumferential direction of the hood body 121 to increase the ventilation area of the exhaust holes 122 in a limited space, the space utilization of the hood 12 is increased.

In the description of the present disclosure, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, and communicatively connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

The described features, structures, or characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Claims (10)

1. A hood, characterized in that the hood (12) comprises:

the exhaust hood comprises an exhaust hood body (121), wherein the exhaust hood body (121) is provided with a plurality of exhaust holes (122) communicated with the inner cavity of the exhaust hood body (121) and the outside, the exhaust holes (122) are arranged at intervals along the circumferential direction of the exhaust hood body (121), and the exhaust holes (122) extend along the circumferential direction of the exhaust hood body (121).

2. The exhaust hood according to claim 1, characterized in that the exhaust holes (122) are arranged in plural groups at intervals along the circumferential direction of the hood body (121), each group of the exhaust holes (122) including a plurality of the exhaust holes (122) arranged at intervals along the height direction of the hood (12).

3. The exhaust hood according to claim 1, characterized in that the exhaust hood (12) further comprises a decorative hood (123), the decorative hood (123) is disposed outside the exhaust hood body (121), the decorative hood (123) is provided with decorative holes (124), the decorative holes (124) extend along the circumferential direction of the exhaust hood body (121), and the decorative holes (124) are disposed in alignment with the exhaust holes (122).

4. A hood according to claim 1, characterized in that the dimension L1 of the exhaust openings (122) in the height direction of the hood (12) is 2.5mm +.l1 +.6 mm.

5. A hood according to claim 2, characterized in that the dimension L2 of the wind-deflector rib between adjacent exhaust holes (122) in each set of exhaust holes (122) in the height direction of the hood (12) is 2mm +.l2 +.3 mm.

6. A hood according to any one of claims 1-5, characterized in that the central angle δ of the hood body (121) to which each exhaust opening (122) corresponds, satisfies 30 ° - δ < 180 °.

7. A nose assembly, characterized in that the nose assembly (1) comprises a nose base (11) and a hood (12) according to any of claims 1-6, the hood (12) being arranged below the nose base (11).

8. The head assembly according to claim 7, wherein the head assembly (1) further comprises a heat dissipating fan (13), the heat dissipating fan (13) is rotatably connected below the head base (11), the heat dissipating fan (13) comprises a plurality of blades (132) arranged at intervals along the circumferential direction of the head assembly (1), at least a part of a windward side of the blades (132) is curved, and the curved surface is curved and extends from a middle part to an edge of the heat dissipating fan (13) against the rotation direction of the heat dissipating fan (13).

9. The head assembly of claim 8, wherein the windward side of the blades (132) further comprises a plane connected to an end of the curved surface near or far from the center of the cooling fan (13), the plane being tangential to the end of the curved surface connected thereto on a projection plane perpendicular to the axis of the cooling fan (13).

10. A cooking appliance, characterized in that the cooking appliance comprises a pot body assembly (2) and a head assembly (1) according to any one of claims 7-9, the pot body assembly (2) is provided with a cooking cavity, and the head assembly (1) is connected with the pot body assembly (2) and is arranged above the cooking cavity.