CN219578736U - Protective cover and cooking device - Google Patents

Abstract

The embodiment of the utility model provides a protective cover and cooking equipment. Wherein, the safety cover includes: the cover body comprises a cover side wall and a cover bottom wall, wherein a plurality of first ventilation holes are formed in the cover side wall, and a plurality of second ventilation holes are formed in the cover bottom wall; the first flow-around ribs are arranged on the inner surface of the side wall of the cover or the inner surface of the bottom wall of the cover; and the second flow-around ribs are arranged on the outer surface of the bottom wall of the cover. When the protective cover is rotatably applied to the cooking equipment to shield the heating piece, the heat air on the inner side of the protective cover is fully disturbed through the first winding ribs, so that the heat air can be more quickly and uniformly distributed on the inner side of the protective cover, the condition that the protective cover is locally remained in a high-temperature area of the heating piece to cause local high-temperature discoloration and burn out can be avoided, and the heat air in the pot body of the cooking equipment is disturbed by the second winding ribs, so that the heat air can be uniformly distributed in the pot body, and the heating uniformity of food materials in the pot body is improved.

Description

Protective cover and cooking device

Technical Field

The utility model relates to the field of cooking equipment, in particular to a protective cover and cooking equipment.

Background

The heating tube of current air fryer is non-confined annular structure usually, and the both ends of heating tube opening part are provided with the terminal respectively and stretch into in the aircraft nose in order to connect the power to for improving the security, shelter from the heating tube through the safety cover, be provided with the ventilation hole on the safety cover, the air guide flabellum blows into the pot body through the ventilation hole with the hot air that the heating tube produced, realizes the heating to edible material. But in the course of the work, the heating tube circumference generates heat unevenly, and is lower at non-confined opening part temperature, and is higher at heating tube entity department temperature, and this can lead to the inside heat maldistribution of safety cover, leads to the local easy burning out because of high temperature discolouring of safety cover.

In order to solve the above problems, a solution of rotating the protective cover around the outer circumference of the heating tube has been proposed in the related art, but the effect of uniformly distributing the hot air inside the protective cover is not very ideal.

Disclosure of Invention

It is therefore an object of the present utility model to provide a protective cover and a cooking device to at least solve the problem that the effect of a uniform distribution of hot air inside the protective cover is not very desirable.

An embodiment of a first aspect of the present utility model provides a protective cover comprising: the cover body comprises a cover side wall and a cover bottom wall, wherein a plurality of first ventilation holes are formed in the cover side wall, and a plurality of second ventilation holes are formed in the cover bottom wall; the first flow-around ribs are arranged on the inner surface of the side wall of the cover or the inner surface of the bottom wall of the cover; and the second flow-around ribs are arranged on the outer surface of the bottom wall of the cover.

The safety cover that this aspect embodiment provided includes the cover body, is provided with a plurality of first ventilation holes on the cover lateral wall of cover body, is provided with a plurality of second ventilation holes on the cover diapire, is favorable to the hot air to flow in order to heat the food material in a large number through a plurality of first ventilation holes and a plurality of second ventilation holes, and the safety cover ventilation effect is good. Moreover, set up a plurality of first detour muscle at the internal surface of cover lateral wall or the internal surface of cover diapire, when the rotatable application of cover is in cooking equipment shelters from the piece that generates heat, a plurality of first detour muscle can be rotatory in step with the safety cover, be favorable to fully disturbing the inboard hot air of safety cover through a plurality of first detour muscle for hot air can be more quick, more evenly distribute the inboard at the cover, can avoid the safety cover local stay in the piece high temperature region that generates heat and appear local high temperature discolouring and burn out, compensate the piece that generates heat the defect that circumference generates heat is uneven. Moreover, the hot air is uniformly distributed in the protective cover, so that the heat of the hot air flowing out of the protective cover is uniformly dispersed, and the food materials are uniformly heated. In addition, set up a plurality of second around flowing muscle at the lower surface of cover diapire, a plurality of second around flowing muscle can be along with the rotation of safety cover and the internal hot air of the pot of disturbance cooking equipment, make the hot air can evenly distributed in the pot, improve the internal food of pot and be heated the homogeneity.

In addition, the protective cover provided by the embodiment of the utility model can also have the following additional technical characteristics:

in some embodiments, the plurality of first flow-around ribs are circumferentially spaced around a center line of the cover body, and the plurality of first flow-around ribs can drive the cover body to rotate under the action of centrifugal wind force.

In the embodiments, the protective cover can automatically rotate under the action of centrifugal wind force without being driven by a driving motor, so that a driving device can be reduced, and the cost is saved. Moreover, a plurality of first detouring ribs are circumferentially distributed at intervals around the central line of the cover body, so that centrifugal wind force is favorable for pushing the plurality of first detouring ribs to move in the circumferential direction at the same time, and then pushing the protective cover to rotate, so that the protective cover is favorable for stably rotating, and in addition, the circumferential disturbance of hot air is also favorable, so that the hot air is uniformly distributed in the protective cover.

In some embodiments, the plurality of first flow-around ribs are disposed on the shroud sidewall and extend vertically or obliquely in the height direction of the shroud sidewall.

In these embodiments, under the condition that the first flow-around ribs can drive the cover body to rotate under the effect of centrifugal wind force, the plurality of first flow-around ribs have larger windward sides, so that when centrifugal wind force impacts on the windward sides of the first flow-around ribs along the circumferential direction of the protective cover, the protective cover can be better pushed to rotate. Moreover, the leeward surfaces of the first winding ribs can disturb hot air in a large range in the height direction of the protective cover, so that the hot air on the inner side of the protective cover is promoted to be uniformly distributed.

In some embodiments, the plurality of first ventilation holes extend vertically or obliquely, one side edge of each first ventilation hole in the width direction is provided with a convex hull protruding inwards, an opening is formed between the convex hull and the other side edge of the first ventilation hole in the width direction, and the convex hull is configured into the first flow-around rib. The convex hull has a simple structure and is convenient for processing and production. Moreover, make things convenient for hot air to strike convex closure inwards one side under centrifugal wind force's effect, be favorable to hot air to promote the convex closure to remove and then promote the safety cover rotatory, simultaneously, hot air can flow out first ventilation hole through the opening along convex closure outwards one side, and the air-out is smooth and easy. And the convex hulls are beneficial to disturbing hot air, so that the hot air is uniformly distributed in the protective cover.

In some embodiments, a plurality of first flow-around ribs are provided on the hood bottom wall, a first end of each first flow-around rib being proximate the hood bottom wall edge, and a second end of each first flow-around rib being proximate the hood bottom wall center relative to its first end.

In these embodiments, the first flow-around rib may cut a part of concentric circles with the center of the bottom wall of the cover as the center of the circle, so that the first flow-around rib has a larger windward surface under the condition that the protective cover rotates under the action of centrifugal wind force, and the centrifugal wind force can impact and push the first flow-around rib in a large area, which is beneficial to making the protective cover rotate stably. Moreover, the first flow-around rib can also disturb the hot air in the protective cover in a large area, and the flow-disturbing effect is good.

In some embodiments, the first flow-around rib extends radially of the shroud bottom wall. The processing is convenient.

In some embodiments, the first end of the first flow-around rib and the center of the bottom wall of the cover are used as reference lines, the second end of the first flow-around rib is located at one side of the reference lines, and the first flow-around rib extends in a straight line or in an arc shape. The length of the first winding rib can be prolonged, the windward side and the leeward side of the first winding rib are increased, the first winding rib is facilitated to drive the cover body to rotate under the impact of centrifugal wind force, and the hot air on the inner side of the protective cover is also facilitated to be disturbed better, so that the hot air is uniformly distributed on the inner side of the protective cover.

In some embodiments, the first end of each second flow-around rib is proximate the edge of the hood bottom wall and the second end of each second flow-around rib is proximate the center of the hood bottom wall relative to the first end thereof.

In the embodiments, the second flow-around rib can cut a part of concentric circles taking the center of the bottom wall of the cover as the center of the circle, so that the second flow-around rib can disturb hot air in a large area in the rotating process of the cover, the turbulent flow effect is good, and the hot air is favorably distributed in the pot body.

In some embodiments, the second flow-around rib extends radially of the shroud bottom wall. The processing is convenient.

In some embodiments, the first end of the second flow-around rib and the center of the bottom wall of the cover are used as reference lines, the second end of the second flow-around rib is located at one side of the reference lines, and the second flow-around rib extends in a straight line or in an arc shape. The length of the second winding rib can be prolonged, and the windward side and the leeward side of the second winding rib are increased, so that the hot air outside the protective cover is disturbed better, and the hot air is distributed uniformly in the pot body.

In some embodiments, the plurality of second ventilation holes are circumferentially spaced around the center of the cover bottom wall. The ventilation uniformity is good.

In some embodiments, each first circumferential rib is disposed at an edge of one of the second ventilation holes. The first winding rib is convenient to process and shape.

In some embodiments, each second circumferential rib is disposed at an edge of one of the second ventilation holes. And the second winding rib is convenient to process and shape.

In some embodiments, one second circumferential rib is distributed between any two circumferentially adjacent first circumferential ribs. The first winding ribs and the second winding ribs are distributed alternately in the circumferential direction, so that the turbulence effect is good, and the hot air is uniformly distributed inside and outside the protective cover.

In some embodiments, a plurality of first vent holes extend laterally on the cover sidewall. The air resistance is small, the ventilation is good, and the hot air can smoothly flow out of the protective cover under the action of centrifugal force.

An embodiment of a second aspect of the present utility model provides a cooking apparatus, comprising: a cooker body, wherein a cooking cavity is arranged in the cooker body; the machine head is arranged at the top of the pot body, and a heating element is arranged at the bottom of the machine head; the fan blade is rotatably arranged above the heating piece and used for blowing hot air into the cooking cavity; the driving motor is arranged in the machine head and is used for driving the fan guide blades to rotate; the protective cover according to any one of the above embodiments, wherein the protective cover shields the heat generating member from below and in the circumferential direction, and the protective cover is rotatable under centrifugal wind force generated by the fan blades, or the protective cover is rotatable under the drive of the drive motor.

The cooking device provided in this embodiment has the protective cover of any one of the embodiments, so that the cooking device has the beneficial effects of any one of the embodiments, and will not be described in detail herein.

Additional aspects and/or advantages of the present general inventive concept will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the general inventive concept.

Drawings

The above and other objects and features of the present utility model will become more apparent from the following description of the embodiments thereof, taken in conjunction with the accompanying drawings in which:

fig. 1 shows a schematic longitudinal sectional view of a cooking apparatus according to a first embodiment of the present utility model;

fig. 2 shows a partial longitudinal sectional view of a cooking apparatus according to a second embodiment of the present utility model;

fig. 3 shows a schematic structural view of a protective cover according to a first embodiment of the present utility model;

fig. 4 shows another schematic structural view of the protective cover of the first embodiment of the present utility model;

FIG. 5 shows a schematic structural view of a protective cover according to a second embodiment of the present utility model;

fig. 6 shows another schematic structural view of a protective cover according to a second embodiment of the present utility model.

Fig. 1 to 6 reference numerals illustrate:

10 machine heads, 110 heating elements,

20, the output shaft of the drive motor, 210,

30 heat dissipation fan blades,

40 the fan blade of the wind-guiding fan,

50 protective covers, 510 cover side walls, 511 first vent holes, 520 cover bottom walls, 521 second vent holes, 530 first flow-around ribs, 540 second flow-around ribs,

60 the cover body is provided with a plurality of grooves,

70 pot body, 710 cooking cavity.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example and is not limited to those set forth herein, but may be altered as will be apparent after an understanding of the disclosure of the utility model, except for operations that must occur in a specific order. Furthermore, descriptions of features known in the art may be omitted for clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent after an understanding of the present disclosure.

As used herein, the term "and/or" includes any one of the listed items associated as well as any combination of any two or more.

Although terms such as "first," "second," and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, first component, first region, first layer, or first portion referred to in the examples described herein may also be referred to as a second member, second component, second region, second layer, or second portion without departing from the teachings of the examples.

In the description, when an element such as a layer, region or substrate is referred to as being "on" another element, "connected to" or "coupled to" the other element, it can be directly "on" the other element, be directly "connected to" or be "coupled to" the other element, or one or more other elements intervening elements may be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" or "directly coupled to" another element, there may be no other element intervening elements present.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, amounts, operations, components, elements, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, amounts, operations, components, elements, and/or combinations thereof. The term "plurality" represents two and any number of two or more.

The terms "upper", "lower", "top" and "bottom" used herein are defined based on the orientation of the product in normal use, unless otherwise specified.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. Unless explicitly so defined herein, terms such as those defined in a general dictionary should be construed to have meanings consistent with their meanings in the context of the relevant art and the present utility model and should not be interpreted idealized or overly formal.

The protective cover 50 and the cooking apparatus provided by the embodiment of the present utility model will be described with reference to fig. 1 to 6. The protection cover 50 is a rotatable protection cover 50, and can rotate around the heating element 110 when the protection cover 50 is applied to a cooking device, and the embodiment further defines the structure of the protection cover 50 based on the rotation of the outer periphery of the heating element, so that the distribution of hot air inside the protection cover 50 is more uniform, and the protection cover 50 is prevented from being burned out due to local high-temperature discoloration.

As shown in fig. 3, 4, 5 and 6, the first aspect of the present utility model provides a protective cover 50, the protective cover 50 comprising: the cover body comprises a cover side wall 510 and a cover bottom wall 520, wherein a plurality of first ventilation holes 511 are formed in the cover side wall 510, and a plurality of second ventilation holes 521 are formed in the cover bottom wall 520; a plurality of first flow-around ribs 530 disposed on an inner surface of the shroud sidewall 510 or an inner surface of the shroud bottom wall 520; a plurality of second circumferential ribs 540 are provided on the outer surface of the shroud bottom wall 520.

The protection cover 50 provided in this embodiment includes a cover body, a plurality of first ventilation holes 511 are provided on the cover side wall 510 of the cover body, and a plurality of second ventilation holes 521 are provided on the cover bottom wall 520, which is favorable for the hot air to flow out in a large amount through the plurality of first ventilation holes 511 and the plurality of second ventilation holes 521 to heat food materials, and the ventilation effect of the protection cover 50 is good. Moreover, a plurality of first flow-around ribs 530 are arranged on the inner surface of the cover side wall 510 or the inner surface of the cover bottom wall 520, when the protective cover 50 is rotatably applied to the cooking equipment for shielding the heating element 110, the plurality of first flow-around ribs 530 can synchronously rotate with the protective cover 50, so that hot air inside the protective cover 50 can be fully disturbed by the plurality of first flow-around ribs 530, the hot air can be more rapidly and uniformly distributed inside the protective cover 50, the condition that the protective cover 50 is burnt out due to local high-temperature discoloration caused by local stay of the protective cover 50 in a high-temperature area of the heating element 110 can be avoided, and the defect of uneven circumferential heating of the heating element 110 is overcome. Moreover, the hot air is uniformly distributed in the protective cover 50, which is favorable for uniformly dispersing the heat of the hot air flowing out of the protective cover 50 and uniformly heating the food. In addition, a plurality of second flow-around ribs 540 are arranged on the lower surface of the bottom wall 520 of the cover, and the second flow-around ribs 540 can disturb hot air in the pot body 70 of the cooking device along with the rotation of the protective cover 50, so that the hot air can be uniformly distributed in the pot body 70, and the heating uniformity of food materials in the pot body 70 is improved.

Further, in some embodiments, the plurality of first flow-around ribs 530 are circumferentially spaced around the center line of the cover body, and the plurality of first flow-around ribs 530 can drive the cover body to rotate under the effect of centrifugal wind force.

In these embodiments, the protection cover 50 can rotate by itself under the action of centrifugal wind force, and the driving device is not needed to be driven by the driving motor 20, so that the cost can be saved. Moreover, the plurality of first flow-around ribs 530 are circumferentially distributed at intervals around the center line of the cover body, which is favorable for simultaneously pushing the plurality of first flow-around ribs 530 to move in the circumferential direction by centrifugal wind force, so as to push the protective cover 50 to rotate, thereby being favorable for the stable rotation of the protective cover 50, and in addition, being favorable for circumferentially disturbing hot air, so that the hot air is uniformly distributed in the protective cover 50.

With respect to the location and specific structure of the first flow-around ribs 530, in some embodiments, as shown in fig. 3 and 4, a plurality of first flow-around ribs 530 are provided on the shroud sidewall 510 and extend vertically or obliquely in the height direction of the shroud sidewall 510.

In these embodiments, in the case that the first flow-around ribs 530 can rotate the cover body under the effect of centrifugal wind force, the plurality of first flow-around ribs 530 have a larger windward surface, so that the centrifugal wind force can better push the cover 50 to rotate when impacting on the windward surface of the first flow-around ribs 530 along the circumferential direction of the cover 50. Moreover, the leeward side of the first plurality of circumferential ribs 530 can disturb the hot air widely in the height direction of the protective cover 50, promoting the uniform distribution of the hot air inside the protective cover 50.

Of course, when the protective cover 50 is rotated by the driving motor 20, the plurality of first flow-around ribs 530 may also disturb the hot air in a wide range in the height direction of the protective cover 50, so as to promote the uniform distribution of the hot air inside the protective cover 50.

In the present utility model, when the protective cover 50 rotates under the centrifugal wind force, one side of the first wind-surrounding rib 530, which is impacted by the centrifugal wind force, is a windward side, and the other side opposite to the windward side is a leeward side. In the case where the protection cover 50 is rotated by the driving motor 20, the windward side of the first winding rib 530 is a side facing the rotation direction, and the leeward side is a side facing away from the rotation direction.

As an example, as shown in fig. 3 and 4, a plurality of first vent holes 511 extend vertically or obliquely, each first vent hole 511 has a convex hull protruding inward at one side edge in the width direction, and an opening is provided between the convex hull and the other side edge in the width direction of the first vent hole 511 where it is located, and the convex hull is configured as a first flow-around rib 530. The convex hull has a simple structure and is convenient for processing and production. Moreover, the hot air can conveniently impact the inward side of the convex hull under the action of centrifugal wind force, so that the convex hull is pushed to move by the hot air, and the protective cover 50 is pushed to rotate, and meanwhile, the hot air can flow out of the first vent 511 along the outward side of the convex hull through the opening, and the air outlet is smooth. Moreover, the convex hull is also beneficial to disturbing the hot air, so that the hot air is uniformly distributed in the protective cover 50.

In other embodiments, as shown in fig. 5 and 6, a plurality of first flow-around ribs 530 are provided on the shroud bottom wall 520, with a first end of each first flow-around rib 530 being proximate to an edge of the shroud bottom wall 520 and a second end of each first flow-around rib 530 being proximate to a center of the shroud bottom wall 520 relative to its first end.

In these embodiments, the first flow-around rib 530 may cut a part of concentric circles centered on the center of the bottom wall 520 of the shroud, so that the first flow-around rib 530 has a larger windward surface when the shroud 50 rotates under the centrifugal force, and the centrifugal force can impact and push the first flow-around rib 530 in a large area, which is beneficial to make the shroud 50 rotate smoothly. Moreover, the first flow-around ribs 530 can also disturb the hot air in the protection cover 50 in a large area, so that the turbulence effect is good.

As an example, the first flow-around rib 530 extends in a radial direction of the shroud bottom wall 520. The processing is convenient.

By way of example, the first end of the first flow-around rib 530 and the center of the cover bottom wall 520 are reference lines, the second end of the first flow-around rib 530 is located at one side of the reference lines, and the first flow-around rib 530 extends in a straight line or in an arc shape. Referring to fig. 5 and 6, the first streaming rib 530 extends in an arc shape. The length of the first flow winding rib 530 can be prolonged, and the windward side and the leeward side of the first flow winding rib 530 are increased, so that the first flow winding rib 530 can drive the cover body to rotate under the impact of centrifugal wind force, and the hot air inside the protective cover 50 can be disturbed better, so that the hot air is uniformly distributed inside the protective cover 50.

With respect to the placement and specific configuration of the second flow-wrap ribs 540, in some embodiments, as shown in fig. 3, 4, 5 and 6, a first end of each second flow-wrap rib 540 is proximate to an edge of the shroud bottom wall 520 and a second end of each second flow-wrap rib 540 is proximate to a center of the shroud bottom wall 520 relative to its first end.

In these embodiments, the second flow-around rib 540 may cut a part of concentric circles centered on the center of the bottom wall 520 of the cover, so that during the rotation of the protective cover 50, the second flow-around rib 540 may disturb the hot air in a large area, which is beneficial to the uniform distribution of the hot air in the pan body 70.

As an example, the second circumferential bead 540 extends in a radial direction of the shroud bottom wall 520. The processing is convenient.

By way of example, the second flow-around rib 540 extends straight or in an arc shape, with the second end of the second flow-around rib 540 being located on one side of the reference line, passing through the first end of the second flow-around rib 540 and the center of the shroud bottom wall 520 as the reference line. Referring to fig. 5 and 6, the second streaming rib 540 extends in an arc shape. The length of the second flow-around rib 540 can be prolonged, and the windward side and the leeward side of the second flow-around rib 540 can be increased, so that the hot air outside the protective cover 50 can be disturbed better, and the hot air can be distributed uniformly in the pot body 70.

Further, as shown in fig. 3 and 4, in the case where the first bypass ribs 530 are provided on the cover side wall 510, each of the second bypass ribs 540 may be provided at an edge of one of the second ventilation holes 521. The plurality of second ventilation apertures 521 are circumferentially spaced around the center of the shroud bottom wall 520. The number of the second flow-around ribs 540 is equal to or less than the number of the second air-through holes 521. A plurality of second circumferential ribs 540 are circumferentially spaced about the center of the shroud bottom wall 520.

Further, as shown in fig. 5 and 6, in the case where the first flow-surrounding rib 530 is provided on the cover bottom wall 520, the plurality of second ventilation holes 521 are circumferentially spaced around the center of the cover bottom wall 520. The ventilation uniformity is good. Each of the first bypass ribs 530 is disposed at an edge of one of the second ventilation holes 521. Each second bypass bead 540 is disposed at an edge of one of the second ventilation holes 521. A second circumferential rib 540 is disposed between any two circumferentially adjacent first circumferential ribs 530. The plurality of first circumferential ribs 530 and the plurality of second circumferential ribs 540 are alternately distributed in the circumferential direction, and the turbulence effect is good, which is advantageous to uniformly distribute the hot air inside and outside the protective cover 50.

As an example, the sum of the number of the first bypass flow ribs 530 and the number of the second bypass flow ribs 540 is equal to the number of the second ventilation holes 521.

As an example, the plurality of first bypass ribs 530 and the plurality of second bypass ribs 540 are each located at the same side edge of the corresponding second ventilation hole 521. For example, in the case that the first flow-around rib 530 can drive the cover body to rotate under the action of centrifugal wind force, the second ventilation holes 521 are located at one side of the first flow-around rib 530 impacted by the centrifugal wind force, and after the hot air impacts the first flow-around rib 530 to push the first flow-around rib 530 to rotate, the hot air can also move downwards along the first flow-around rib 530 to flow out of the second ventilation holes 521, so that the ventilation performance is good.

As an example, the first bypass bead 530 is constructed of a first burring structure located at one side of the second ventilation hole 521. The second bypass bead 540 is constructed of a second burring structure located at one side of the second ventilation hole 521.

Further, as shown in fig. 5 and 6, in the case where the first flow-around rib 530 is provided on the cover bottom wall 520, the plurality of first vent holes 511 extend laterally on the cover side wall 510. The air resistance is small, the ventilation is good, and the hot air can smoothly flow out of the protective cover 50 under the action of centrifugal force.

As shown in fig. 1 and 2, a second aspect of the embodiment of the present utility model provides a cooking apparatus including: a cooker body 70, wherein a cooking cavity 710 is arranged in the cooker body 70; the machine head 10 is arranged at the top of the pot body 70, and a heating element 110 is arranged at the bottom of the machine head 10; a fan blade 40 rotatably disposed above the heat generating member 110 for blowing hot air into the cooking cavity 710; the driving motor 20 is arranged in the machine head 10, and the driving motor 20 is used for driving the air guide fan blades 40 to rotate; the protective cover 50 according to any one of the above embodiments, the protective cover 50 shields the heat generating element 110 from below and in the circumferential direction, and is rotatably located at the outer periphery of the heat generating element 110. The cooking apparatus provided in this embodiment has the protective cover 50 of any one of the above embodiments, so that the cooking apparatus has the beneficial effects of any one of the above embodiments, and will not be described in detail herein.

Wherein fig. 1 shows a schematic longitudinal sectional view of a cooking apparatus of a first embodiment, wherein a protective cover 50 of the embodiment shown in fig. 3 and 4 is applied. Fig. 2 shows a schematic partial longitudinal sectional view of a cooking apparatus of a second embodiment, in which the protective cover 50 of the embodiment shown in fig. 5 and 6 is applied.

Further, as to how the protective cover 50 is driven to rotate, in some embodiments, the protective cover 50 can be rotated by centrifugal wind generated by the wind guide blades 40, or the protective cover 50 can be rotated by the driving motor 20.

Specifically, under the condition that the protection cover 50 can rotate under the action of wind power generated by the wind-guiding blades 40, centrifugal wind power blown by the wind-guiding blades 40 can impact the plurality of first flow-around ribs 530, so as to push the first flow-around ribs 530 to move and drive the cover body to rotate, and the wind-guiding blades 40 can rotate at a relatively slow speed. When the protective cover 50 can be rotated by the drive motor 20, the drive motor 20 can drive the protective cover 50 to rotate continuously, and the protective cover 50 can rotate at a high speed. The driving motor 20 can also intermittently drive the protective cover 50 to rotate and cooperate with wind power to drive the protective cover 50 to assist each other, so that medium-speed rotation of the protective cover 50 is realized.

As an example, in the case where the protective cover 50 can rotate under the wind force generated by the wind-guiding blades 40, the output shaft 210 of the driving motor 20 is connected to the mounting hole in the center of the bottom wall of the protective cover 50 through a bearing, so that the protective cover 50 can smoothly rotate around the output shaft 210.

As an example, in the case where the protective cover 50 can rotate at a high speed under the drive of the driving motor 20, the output shaft 210 of the driving motor 20 is directly connected to the mounting hole in the center of the bottom wall of the protective cover 50, driving the protective cover 50 to rotate at a high speed in synchronization.

As an example, the protection cover 50 can also be rotated by wind power generated from the wind-guiding blades 40 and intermittent driving of the driving motor 20. In addition to the protection cover 50 having the first winding rib 530 which can be blown by the centrifugal wind generated by the fan blade 40, the mounting hole in the center of the bottom wall of the protection cover 50 is circumferentially clearance fit with the output shaft 210 of the driving motor 20, and a stop collar may be added between the mounting hole and the mounting hole, so that the stop collar is circumferentially clearance fit with the output shaft 210, and the stop collar is also circumferentially clearance fit with the mounting hole. Due to clearance fit, the protection cover 50 rotates under the action of wind force, the generated centrifugal force can cause the installation hole to rub with the limiting sleeve, and the limiting sleeve also deflects to rub with the output shaft 210, so that the output shaft 210 can intermittently drive the protection cover 50 to rotate through the limiting sleeve, the driving motor 20 can be utilized to assist the protection cover 50 to rotate under the action of wind force, the situation that oil stains adhere to the protection cover 50 to cause the protection cover 50 to be unable to rotate can be avoided, and smooth rotation of the protection cover 50 under the action of mutual assistance of wind power and electric power is realized.

In some embodiments, as shown in fig. 1 and 2, the cooking apparatus further includes a heat dissipation fan blade 30, where the heat dissipation fan blade 30 is connected to the output shaft 210 of the driving motor 20 and is located inside the handpiece 10, for dissipating heat from internal components of the handpiece 10. The shaft sleeve is sleeved on the output shaft 210 and supported between the heat dissipation fan blade 30 and the air guide fan blade 40, so as to avoid the two from approaching each other. The output shaft 210 of the driving motor 20 can drive the heat dissipation fan blade 30 and the air guide fan blade 40 to rotate at a high speed in synchronization.

In some embodiments, the heating element 110 is a heating tube, and is distributed in a non-closed ring shape, for example, in a C-shape, so that the connection terminals at two ends of the opening of the heating tube extend into the machine head 10 to be connected with a power supply.

In some embodiments, as shown in fig. 1 and 2, the cover assembly further includes a cover body 60, the cover body 60 is connected to the bottom of the machine head 10, a through hole for the heat generating element 110 to pass through is provided in the middle of the cover body 60, the cover body 60 can be covered on the pot body 70, and the upper edge of the side wall of the protective cover 50 is spaced from the lower surface of the cover body 60, so as to avoid rotational interference.

By way of example, the cover body 60 is a glass cover that facilitates the user's view of the food material therethrough.

In some embodiments, the cooking device is an air fryer, a bake-air frying device, or the like.

Although embodiments of the present utility model have been described in detail hereinabove, various modifications and variations may be made to the embodiments of the utility model by those skilled in the art without departing from the spirit and scope of the utility model. It will be appreciated that such modifications and variations will be apparent to those skilled in the art that they will fall within the spirit and scope of the embodiments of the utility model as defined in the appended claims.

Claims (10)

1. A protective cover, wherein the protective cover comprises:

the cover comprises a cover body and a cover base wall (520), wherein the cover body comprises a cover side wall (510), a plurality of first ventilation holes (511) are formed in the cover side wall (510), and a plurality of second ventilation holes (521) are formed in the cover base wall (520);

a plurality of first circumferential ribs (530) disposed on an inner surface of the shroud sidewall (510) or an inner surface of the shroud bottom wall (520);

a plurality of second circumferential ribs (540) are disposed on an outer surface of the shroud bottom wall (520).

2. The protective cover according to claim 1, wherein a plurality of the first flow-around ribs (530) are circumferentially spaced around a center line of the cover body, and the plurality of the first flow-around ribs (530) can drive the cover body to rotate under the action of centrifugal wind.

3. The protective cover according to claim 1 or 2, characterized in that a plurality of the first flow-around ribs (530) are provided on the cover side wall (510) and extend vertically or obliquely in the height direction of the cover side wall (510).

4. A protective cover according to claim 3, wherein a plurality of the first vent holes (511) extend vertically or obliquely, each of the first vent holes (511) has at one widthwise side edge thereof an inwardly protruding convex hull having an opening between itself and the other widthwise side edge of the first vent hole (511), the convex hull being configured as the first flow-around rib (530).

5. The protective cover according to claim 1 or 2, characterized in that a plurality of said first flow-around ribs (530) are provided on said cover bottom wall (520), a first end of each said first flow-around rib (530) being close to an edge of said cover bottom wall (520), a second end of each said first flow-around rib (530) being close to a center of said cover bottom wall (520) with respect to its own first end.

6. The protective cover according to claim 5, wherein the first circumferential bead (530) extends in a radial direction of the cover bottom wall (520); or alternatively

The first end of the first flow-around rib (530) and the center of the bottom wall (520) of the cover are used as datum lines, the second end of the first flow-around rib (530) is positioned at one side of the datum lines, and the first flow-around rib (530) extends in a straight line or in an arc shape.

7. The protective cover according to claim 1 or 2, characterized in that the first end of each second flow-around rib (540) is close to the edge of the cover bottom wall (520), and the second end of each second flow-around rib (540) is close to the centre of the cover bottom wall (520) with respect to the first end thereof.

8. The protective cover according to claim 7, wherein the second circumferential bead (540) extends in a radial direction of the cover bottom wall (520); or alternatively

And the first end of the second flow-around rib (540) and the center of the bottom wall (520) of the cover are used as datum lines, the second end of the second flow-around rib (540) is positioned at one side of the datum lines, and the second flow-around rib (540) extends in a straight line or in an arc shape.

9. The protective cover according to claim 1 or 2, wherein a plurality of the second air-passing holes (521) are circumferentially spaced around the center of the cover bottom wall (520), each of the first flow-around ribs (530) is disposed at the edge of one of the second air-passing holes (521), each of the second flow-around ribs (540) is disposed at the edge of one of the second air-passing holes (521), and one of the second flow-around ribs (540) is disposed between any two of the first flow-around ribs (530) that are circumferentially adjacent; and/or

A plurality of the first vent holes (511) extend transversely across the cover side wall (510).

10. A cooking apparatus, characterized in that the cooking apparatus comprises:

a pan body (70), wherein a cooking cavity (710) is arranged in the pan body (70);

the machine head (10) is arranged at the top of the pot body (70), and a heating element (110) is arranged at the bottom of the machine head (10);

a fan blade (40) rotatably disposed above the heating element (110) for blowing hot air into the cooking cavity (710);

the driving motor (20) is arranged in the machine head (10), and the driving motor (20) is used for driving the fan guide blades (40) to rotate;

the protective cover (50) according to any one of claims 1 to 9, wherein the protective cover (50) shields the heating element (110) from below and in the circumferential direction, and the protective cover (50) can rotate under the centrifugal wind force generated by the wind guide blades (40) or the protective cover (50) can rotate under the drive of the driving motor (20).