WO2021017140A1

WO2021017140A1 - Baking cover

Info

Publication number: WO2021017140A1
Application number: PCT/CN2019/108410
Authority: WO
Inventors: 周子华
Original assignee: 艾化电器有限公司
Priority date: 2019-07-31
Filing date: 2019-09-27
Publication date: 2021-02-04
Also published as: CN210784045U

Abstract

The present invention relates to a baking cover (1), comprising an outer cover (3), an inner cover (4), a heating device and a fan (8); an air inlet (31) is provided at the top of the outer cover (3), an air outlet (32) is provided at a side wall of the outer cover (3), the outer cover (3) and the inner cover (4) are snap-fitted, and a hot air cavity is formed between the outer cover (3) and the inner cover (4); the fan (8) is provided within the hot air cavity (5); the heating device is provided on the inner cover (4), the inner cover (4) is provided with a ventilation opening in communication with the hot air cavity (5), the lower edge of the inner cover (4) is provided with a circle of an annular groove (41) used for sealing an inner container (22), the inner cover (4) is located below the annular groove (41) and turned outwards along the outer wall of the annular groove (41) for clamping the flanging (42) of the outer cover (3). The lower edge of the inner cover (4) is provided with a circle of the annular groove (41) used for sealing the inner container (22), when the baking cover (1) is snap-fitted with a cooker body, the upper part of the inner container (22) abuts against the annular groove (41) of the inner cover (4), so as to realize the sealing between the inner cover (4) and the inner container (22). As the heating device is provided on the inner cover (4), the heat generated by the heating device is directly transferred to the inner container (22) for baking food, avoiding the loss of heat; and the mixture of external cold air and oil fume with heat is discharged to the air outlet (32) of the side wall of the outer cover (3) under the action of the fan (8), reducing the temperature.

Description

Baking cover

Technical field

The utility model relates to a baking device, in particular to a baking cover.

Background technique

The baking cover is a cover body with a built-in baking device. The existing baking cover can be buckled with the pot body to form a baking box, and the operation is very simple.

At present, the common baking cover and the inner pot are not tightly buckled, and the baking cover and the pot body are buckled with each other through the pot teeth of the pot body and the cover teeth of the baking lid to realize the buckling of the baking cover and the pot body.

Because the baking box generates hot air during the baking process, the hot air enters the baked food in the inner tank, and then the hot air exits the air outlet through the baking cover. Because the outer pot and the inner cover are not tightly buckled, the hot air enters the baking cover Cover, it is easy to cause the electrical equipment in the baking cover to overheat.

Moreover, because the baking cover is buckled with the pot body, the inner cover is not directly buckled and sealed with the inner container, which causes the hot air generated by the baking cover to partly dissipate into the pot body, resulting in poor food heating effect.

Utility model content

The purpose of the utility model is to provide a baking cover with tight sealing and reasonable air duct design.

The purpose of the utility model is achieved as follows:

A baking cover includes an outer cover, an inner cover, a heating device and a fan. The top of the outer cover has an air inlet, the side wall of the outer cover has an air outlet, the outer cover and the inner cover are buckled together, and the outer cover and the inner cover A hot air cavity is formed between the fan, the fan is placed in the hot air cavity, the heating device is arranged on the inner cover, the inner cover is opened with a vent connected to the hot air cavity, and the inner cover is provided with a ring for sealing the inner tank The inner cover is located below the annular groove and is turned outwards along the outer wall of the annular groove for clamping the outer cover. The lower edge of the inner cover is provided with an annular groove for sealing the inner container. When the baking cover is buckled with the pot body, the upper part of the inner container abuts against the annular groove of the inner cover to realize the sealing of the inner cover and the inner container. Because the heating device is arranged on the inner cover, the heat generated by the heating device is directly transferred to the roasted food in the inner container to avoid heat loss. Moreover, the cooking fume with heat generated by the roasted food enters the hot air cavity through the vent, and the outside cold wind passes through the outside. The air inlet at the top of the cover enters the hot air cavity, and the outside cold air and the heated oil fume are mixed under the action of the fan and discharged to the air outlet on the side wall of the outer cover, thereby reducing the temperature of the baking cover, and the baking cover is quickly lowered by the hot air cavity Therefore, the height of the baking cover can be reduced, the volume is reduced, the baking cover is more beautiful, and the manufacturing cost is lower. In addition, the inner cover is located under the annular groove and turned out along the outer wall of the annular groove for clamping the outer cover The flanging, the outer cover and the inner cover are snapped together, and the flanging seals the gap between the outer cover and the inner cover to prevent the heat of the inner tank from entering the hot air cavity through the gap between the outer cover and the inner cover, thereby reducing the temperature of the baking cover , Improve the safety of the baking cover.

The purpose of the utility model can also be solved by the following technical measures:

As a more specific solution, a ring of flanging grooves matching the flanging of the inner lid is provided on the lower edge of the outer pot. The outer cover is provided with a flanging groove, and the inner cover is provided with a flanging. After the outer cover and the inner cover are buckled, the flanging abuts against the flanging groove to realize the sealing of the outer cover and the inner cover and avoid the heat of the inner tank It enters the hot air cavity through the gap between the outer cover and the inner cover, thereby reducing the temperature of the baking cover and improving the safety of the baking cover.

As a more specific solution, the heating device is a heating plate, and the heating plate is fixed on the top of the inner cover.

As a more specific solution, a reflector is also included, and the reflector is fixed on the top of the inner tank to shield the heating plate.

As a more specific solution, the vent is provided at the top position of the inner cover.

As a more specific solution, the fan includes a motor, a first fan blade, and a second fan blade. The motor is placed in the hot air cavity, the rotating shaft of the motor passes through the hot air cavity and extends out of the inner cover, and the first fan blade It is placed in the hot air cavity and connected with the rotating shaft of the motor, the second fan blade is placed in the inner cover and connected with the rotating shaft of the motor, and the motor drives the first fan blade and the second fan blade to rotate synchronously. The fan is provided with a first fan blade and a second fan blade. The first fan blade and the second fan blade are jointly driven by a motor, which reduces the number of motors and reduces the manufacturing cost, and the first fan blade is placed in the hot air cavity to stir the hot air The gas flow in the cavity, the second fan blade is placed on the top of the inner cover to agitate the gas flow in the inner tank, thereby speeding up the gas flow, improving the heat dissipation effect, and because of the high heat exchange efficiency of the baking cover, it is effective to prevent the motor from being in a high temperature environment. The service life of the motor.

As a more specific solution, it also includes a control panel, the control panel is arranged on the outer cover, and the control panel is electrically connected to the heating device and the fan. Due to the high heat exchange efficiency of the baking cover, the control panel is prevented from being in a high temperature environment and the service life of the control panel is effectively extended.

The beneficial effects of the utility model are as follows:

According to the utility model, the lower edge of the inner cover is provided with an annular groove for sealing the inner container. When the baking cover is buckled with the pot body, the upper part of the inner container abuts against the annular groove of the inner cover to realize the inner cover It is sealed with the inner tank. Because the heating device is installed on the inner cover, the heat generated by the heating device is directly transferred to the baked food in the inner tank to avoid heat loss, and the cooking fume with heat generated by the baked food enters the hot air cavity through the vent. The outside cold air enters the hot air cavity through the air inlet on the top of the outer cover. The outside cold air and the heat-carrying oil fume are mixed and discharged to the air outlet on the side wall of the outer cover under the action of the fan, thereby reducing the temperature of the baking cover. Reduce the temperature of the baking cover, so the height of the baking cover can be reduced, the volume is reduced, the baking cover is more beautiful, and the manufacturing cost is lower. In addition, the inner cover is located under the annular groove and is turned out along the outer wall of the annular groove. Clamp the flange of the outer cover, the outer cover and the inner cover are buckled together, and the flange seals the gap between the outer cover and the inner cover to prevent the heat of the inner tank from entering the hot air cavity through the gap between the outer cover and the inner cover, thereby reducing drying The temperature of the baking cover improves the safety of the baking cover.

According to the utility model, the outer cover is provided with a flanging groove, and the inner cover is provided with a flanging. When the outer cover and the inner cover are buckled, the flanging abuts against the flanging groove to realize the sealing of the outer cover and the inner cover and avoid The heat of the inner tank enters the hot air cavity through the gap between the outer cover and the inner cover, thereby reducing the temperature of the baking cover and improving the safety of the baking cover.

According to the utility model, the fan is provided with a first fan blade and a second fan blade. The first fan blade and the second fan blade are driven by a motor, which reduces one motor and reduces the manufacturing cost, and the first fan blade is placed in hot air The cavity stirs the gas flow in the hot air cavity, and the second fan blade is placed on the top of the inner cover to agitate the gas flow in the inner tank, thereby accelerating the gas flow speed and improving the heat dissipation effect.

Description of the drawings

Figure 1 is a top view of the baking cover of the present invention.

Fig. 2 is a sectional view taken along the line A-A in Fig. 1.

Figure 3 is an exploded view of the baking cover of the utility model.

Figure 4 is a schematic diagram of the inner cover of the baking cover of the present invention.

Figure 5 is a schematic diagram of an air fryer.

Figure 6 is an assembly diagram of the baking lid and the pot body of the air fryer.

Fig. 7 is a cross-sectional view of the air fryer (gas flow state).

Fig. 8 is an enlarged view of part B of Fig. 7.

Detailed ways

The following describes the utility model further in conjunction with the drawings and embodiments:

Embodiments, combined with FIGS. 1 to 8, an air fryer includes a baking cover 1 and a pot body 2, the pot body 2 includes an outer pot 21 and an inner pot 22, and the inner pot 22 is seated in the outer pot 21.

The baking cover 1 includes an outer cover 3, an inner cover 4, a heating device, a fan 8, a control panel 9 and a reflector 7. The top of the outer cover 3 has an air inlet 31, and the side wall of the outer cover 3 has an air outlet. 32. A ring of flanging grooves 33 is provided on the lower edge of the outer pot 21.

A ring of annular groove 41 for sealing the inner liner is provided on the lower edge of the inner cover 4, and the inner cover 4 is located below the annular groove 41 and is turned outward along the outer wall of the annular groove 41 for clamping the outer cover 3.

The outer cover 3 and the inner cover 4 are buckled together, the hot air cavity 5 is enclosed between the outer cover 3 and the inner cover 4, and the flange 42 of the inner cover 4 is clamped in the flange groove 33 of the outer cover 3 to realize the outer cover 3 and the inner cover 4 are sealed.

A vent 43 is opened at the top of the inner cover 4, and the vent 43 is connected to the hot air cavity 5. The heating device is a heating plate 6, which is set on the top of the inner cover, and the reflector 7 is set on the inner cover. The top of 4 shields the heating plate 6.

The fan 8 includes a motor 81, a first fan blade 82, and a second fan blade 83. The motor 81 is placed in the hot air cavity 5, and the rotating shaft 811 of the motor 81 passes through the hot air cavity 5 and extends out of the inner cover 4. The first fan blade 82 is placed in the hot air cavity 5 and connected to the rotating shaft 811 of the motor 81. The second fan blade 83 is placed in the inner cover 4 and connected to the rotating shaft 811 of the motor 81. The motor 81 drives the first fan blade 82 and the The two fan blades 83 rotate synchronously.

The control panel 9 is arranged on the outer cover 3, and the control panel 9 is electrically connected to the heating plate 6 and the motor 81 respectively.

working principle:

The baking cover 1 is buckled on the pot body 2, the outer cover 3 is buckled with the outer pot 21, the upper part of the inner bladder 22 abuts on the annular groove 41 of the inner cover 4, and the inner bladder 22 is close to the inner wall of the annular groove 41, The inner bladder 22 and the inner cover 4 are sealed.

The user activates the baking cover 1 through the control panel 9, the heating plate 6 generates heat to bake the food in the inner container 22, and the motor 81 drives the first fan blade 82 and the second fan blade 83 to rotate, and the food is generated during the baking process. The heating oil fume is driven by the second fan blade 83 to enter the hot air cavity 5 along the vent 43.

The outside cold air enters the hot air cavity 5 through the air inlet 31 of the outer cover 3. Driven by the first fan blade 82, the outside cold air mixes with the heat-carrying oil fume and is discharged to the outside along the air outlet 32 of the outer cover 3. As it enters the hot air cavity The heating oil fume in 5 quickly passes through the air outlet 32 to reduce the oil fume from staying in the hot air cavity 5, thereby reducing the temperature of the baking cover 1.

Moreover, the inner bladder 22 and the inner cover 4 are sealed to effectively reduce heat loss. If the inner bladder 22 and the inner cover 4 are worn for a long time, the heat-bearing oil fume will leak along the junction of the inner bladder 22 and the inner cover 4. The flange 42 is clamped in the flange groove 33 of the outer cover 3, the outer cover 3 and the inner cover 4 are sealed, the leaking heat fume flows out of the outside, and the leaked heat fume cannot enter the outer cover 3 through the inner cover 4 Cavity, to avoid heating oil fume into the baking cover 1, thereby reducing the temperature of the baking cover 1.

Claims

A baking cover includes an outer cover, an inner cover, a heating device and a fan. The top of the outer cover has an air inlet, the side wall of the outer cover has an air outlet, the outer cover and the inner cover are buckled together, and the outer cover and the inner cover A hot air cavity is formed between the fan, the fan is placed in the hot air cavity, and the heating device is arranged on the inner cover, characterized in that: the inner cover is opened with a vent communicating with the hot air cavity, and a ring is provided on the lower edge of the inner cover for sealing The annular groove of the inner liner, the inner cover is located below the annular groove and is turned outward along the outer wall of the annular groove to clamp the outer cover.
The baking cover according to claim 1, characterized in that: the lower edge of the outer cover is provided with a ring of flanging grooves matching the flanging of the inner cover.
The baking cover according to claim 1, wherein the heating device is a heating plate, and the heating plate is fixed on the top of the inner container.
The baking cover according to claim 1, further comprising a reflection cover, the reflection cover is fixed on the top of the inner cover to shield the heating plate.
The baking cover according to claim 1, wherein the vent is arranged at the top position of the inner cover.
The baking cover of claim 1, wherein the fan includes a motor, a first fan blade and a second fan blade, the motor is placed in the hot air cavity, and the rotating shaft of the motor passes through the hot air cavity and extends out of the inner cover In addition, the first fan blade is placed in the hot air cavity and connected with the rotating shaft of the motor, and the second fan blade is placed in the inner cover and connected with the rotating shaft of the motor. The motor drives the first fan blade and the second fan blade to rotate synchronously.
The baking cover of claim 1, further comprising a control panel, the control panel is arranged on the outer cover, and the control panel is electrically connected to the heating device and the fan.