CN111700519A - Air intake structure at the bottom of the air fryer - Google Patents

Abstract

The invention discloses an air intake structure at the bottom of an air fryer, comprising a body assembly and an upper cover assembly. The body assembly includes: a casing, a motor is arranged at the center of the bottom of the casing; a heat shield, which is The heat dissipation cover is fixed on the shell, and the heat dissipation cover is provided with a heat dissipation air outlet and a heat dissipation air intake; a reflector is fixed above the heat dissipation cover and forms a heat dissipation area with the heat dissipation cover; a heat dissipation fan is located in the heat dissipation area. and fixed on the shaft of the motor; the turbofan cover, which is located in the reflector and forms a heating area with the turbofan cover; the turbofan, which is located in the heating area and fixed on the shaft of the motor; the heating pipe, which is located in the heating area The frying basket is located above the turbofan cover, and the invention makes the machine have better safety and energy saving effects by placing the heat dissipation system and the heating system at the bottom of the machine.

Description

Air intake structure at the bottom of the air fryer

technical field

The invention belongs to the field of air fryer, and more particularly relates to an air intake structure at the bottom of an air fryer.

Background technique

At present, there are many types of air fryers on the market with different functions, but they all place the cooling and control systems on the upper part of the machine. This structure has two shortcomings. First, some components in the operating system (such as integrated circuits) Boards, motors, etc.) have higher requirements on the ambient temperature of the placement location, but the heat of the machine is dissipated upwards in the working state, so the temperature of the upper part of the machine will be too high, resulting in the performance and safety of the parts placed inside. hidden danger. Second, because the heat is dissipated upward, it is not conducive to heat insulation and energy saving of the heating pipe.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the present invention provides a cooling system and a heating system of the air fryer placed at the bottom of the machine, so that the machine has better safety and energy saving effects and better user experience.

In order to achieve the above purpose, the present invention provides the following technical solutions: an air intake structure at the bottom of an air fryer, including a body assembly and an upper cover assembly, and the body assembly includes:

The casing, the bottom of the casing is provided with a bottom air inlet, the side wall of the casing is provided with a side air inlet and a side air outlet, and a motor is arranged at the center of the bottom of the casing;

a heat shield, which is fixed on the casing, a central hole through which the shaft of the electric motor passes through is arranged at the bottom, and a heat dissipation air outlet and a heat dissipation air inlet are provided on the heat shield, and the heat dissipation air outlet is connected with the side air outlet of the casing;

a reflector, which is fixed above the heat shield and forms a heat dissipation area with the heat shield, and the reflector is passed through by the shaft of the motor;

A cooling fan, which is located in the cooling zone and fixed on the shaft of the motor;

A turbofan cover, which is located in the reflector and forms a heating area with the turbofan cover, the top and the side are respectively provided with a top air inlet and a side air inlet, and a heating gap is formed between the edge and the reflector;

a turbofan, which is located in the heating zone and fixed on the shaft of the motor;

The heating pipe, which is located in the heating zone and directly above the turbofan;

The frying basket, which is located above the turbofan hood.

Further, a thermal insulation gap is left between the reflector and the inner wall of the casing.

Further, the edge of the heat shield is provided with heat dissipation vents, and the heat dissipation vents communicate with the heat insulation gap and the bottom of the casing.

Further, the side air inlet is close to the top of the casing and communicates with the thermal insulation gap.

Further, the side air outlet is provided with an air outlet grille.

Further, the pins of the heating pipe are fixed on the heat shield through the reflector.

Further, the top of the casing is provided with a middle frame, and the reflector is fixed to the middle frame.

Further, a shaft sleeve is arranged between the shaft of the motor and the reflector.

Further, a support foot is provided below the heat shield, and the support foot is fixed with the bottom of the casing.

Compared with the prior art, the beneficial effects of the present invention are:

1. By placing the heating system and cooling system at the bottom of the machine, the machine has better safety and energy saving effects;

2. The heat moves upward from the bottom, that is, the cooler air sinks to the turbofan cover and is sucked into the heating area by the turbofan for heating, and the heating efficiency is high;

3. The use of thermal insulation gaps can prevent the heat of the reflector from dissipating through direct contact with the shell;

4. At the same time, the heat insulation gap is combined with the heat dissipation vent and the side air inlet, so that the cold air enters the heat insulation gap to cool the shell, so that the heat of the heat insulation gap is quickly dissipated, and the temperature of the outer surface of the shell is kept low.

Description of drawings

Fig. 1 is the three-dimensional structure diagram of the present invention;

Fig. 2 is an exploded view of the present invention;

3 is a cross-sectional view of the present invention;

4 is a schematic structural diagram of a housing in the present invention;

Fig. 5 is the structural representation of the heat shield in the present invention;

FIG. 6 is a schematic structural diagram of a turbofan cover in the present invention.

Reference numerals: 1. Upper cover assembly; 2. Body assembly; 21. Middle frame; 22. Frying basket; 23. Turbofan cover; 231. Top air inlet; 232. Side air inlet; 24. Heating pipe ;25, turbo fan; 26, bushing; 27, reflector; 28, cooling fan; 29, heat shield; 291, center hole; 292, cooling air outlet; 293, cooling air inlet; 294, cooling vent; 20, motor; 211, shell; 212, air outlet grille; 2111, side air outlet; 2112, side air inlet, 2113, bottom air inlet; 223, heat insulation gap.

Detailed ways

Embodiments of the air intake structure at the bottom of the air fryer of the present invention will be further described with reference to FIGS. 1 to 6 .

In the description of the present invention, it should be noted that for orientation words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", " Width, Thickness, Top, Bottom, Front, Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inside ", "outside", "clockwise", "counterclockwise" and other indications of orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or indicating the number of technical features. Therefore, defining the "first" and "second" features may expressly or implicitly include one or more of the features, and in the description of the present invention, "several" and "several" means two or two above, unless otherwise expressly specifically defined.

An air intake structure at the bottom of an air fryer, comprising a body assembly 2 and an upper cover assembly 1, the body assembly 2 comprising:

The casing 211, the bottom of the casing is provided with a bottom air inlet 2113, the side wall of the casing is provided with a side air inlet 2112 and a side air outlet 2111, and the motor 20 is arranged at the center of the bottom of the casing;

The heat shield 29 is fixed on the casing, the bottom is provided with a central hole 291 through which the shaft of the electric motor 20 passes, and the heat shield 29 is provided with a heat dissipation air outlet 292 and a heat dissipation air inlet 293, and the heat dissipation air outlet 292 communicates with each other. The side air outlet 2111 of the casing;

The reflector 27 is fixed above the heat shield 29 and forms a heat dissipation area with the heat shield 29, and the reflector 27 is passed through by the shaft of the motor 20;

a cooling fan 28, which is located in the cooling zone and fixed on the shaft of the motor 20;

The turbofan cover 23 is located in the reflector 27 and forms a heating area with the turbofan cover 23 , and a top air inlet 231 and a side air inlet 232 are respectively opened at the top and the side thereof, and a heating gap is formed between the edge and the reflector 27 ;

a turbofan 25, which is located in the heating zone and fixed on the shaft of the motor 20;

The heating pipe 24 is located in the heating zone and is located just above the turbofan 25;

The frying basket 22 is located above the turbofan cover 23 .

In this embodiment, the upper cover assembly 1 can be a common thermal insulation cover hingedly fixed on the casing.

The working process of the air fryer of the present invention is as follows:

Heating system, the heating pipe 24 generates heat, the turbofan 25 is driven by the shaft of the motor 20 to rotate, and the turbofan 25 sucks the air in the frying basket 22 from the top air inlet 231 and the side air inlet 232 of the turbofan cover 23 into the heating area, and passes the air in the frying basket 22. The heating tube 24 heats the air in the heating area, and the rotation of the turbo fan 25 blows the heated air out of the heating gap, so that the hot air is blown out of the frying basket 22 along the reflector 27, and the hot air flows upward, while the cooler air flows upward. It sinks to the turbofan hood 23 and is sucked into the heating zone. Repeatedly circulating, the air circulates at a high speed, and the heating efficiency is high. It provides heat to the working space of the frying basket 22 and maintains a relatively uniform temperature.

In the cooling system, when the motor 20 rotates, the shaft of the motor 20 drives the cooling fan 28 to rotate, and the cold air located outside the air fryer is drawn from the side air inlet 2112, the bottom air inlet 2113 and the heat dissipation air inlet 293 of the heat shield 29. After being sucked into the heat dissipation area, the cooling fan 28 discharges the cold air through the heat dissipation air outlet 292 of the heat shield 29 and the side air outlet 2111 of the casing 211 , thus forming a heat dissipation cycle repeatedly.

In this embodiment, a preferred bottom surface of the turbofan cover 23 is provided with a plug, and the plug passes through the reflector 27 and is fixed to the heat shield 29 .

In this embodiment, a thermal insulation gap 223 is preferably left between the reflector 27 and the inner wall of the housing, and the thermal insulation gap 223 separates the reflector 27 from the housing, reducing the contact area, that is, reducing the contact area between the reflector 27 and the outside world. The heat exchange efficiency is improved, and the thermal insulation effect is improved.

Preferably, in this embodiment, the edge of the heat shield 29 is provided with a heat dissipation vent 294, and the heat dissipation vent 294 communicates with the heat insulating gap 223 and the bottom of the casing.

When the heat is dissipated by the cooling fan 28, the cooling fan 28 blows out the hot air, and sucks the cold air from the bottom of the casing and the side of the casing, and part of the cold air will enter the heat insulation gap 223 through the side air inlet 2112, and then pass through the cooling ventilation. The port 294 is sucked into the cooling fan 28 .

In this embodiment, preferably, the side air inlets 2112 are close to the top of the casing and communicate with the heat insulation gap 223. The side air inlets 2112 are distributed along the circumference of the casing.

In this embodiment, the side air outlet 2111 is preferably provided with an air outlet grille 212 , and the air outlet grille 212 can prevent foreign objects from entering the heat dissipation area and protect the cooling fan 28 .

In this embodiment, the legs of the heating pipe 24 are preferably fixed on the heat shield 29 through the reflector 27 , and feet are provided below the heat shield 29 , and the feet are fixed to the bottom of the casing, wherein the feet are connected to the casing The bottom of the heat exchanger is preferably fixed by screws, that is to say, the heat shield 29 not only insulates heat but also acts as a support body, and the heating pipe 24 is fixed on the heat shield 29, and the fixing is firm.

In this embodiment, the top of the housing is preferably provided with a middle frame 21, the reflector 27 is fixed to the middle frame 21, the middle frame 21 is used to connect the top of the reflector 27 and the housing, and is made of a material with better heat insulation to make.

In this embodiment, a shaft sleeve 26 is preferably disposed between the shaft of the motor 20 and the reflector 27 , the shaft sleeve 26 is fixed on the reflector 27 and rotates relative to the shaft of the motor 20 , and the turbofan 25 is located above the shaft sleeve 26 And fixed on the shaft of the motor 20 through a nut.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides an air fryer bottom air intake structure, includes fuselage assembly and upper cover assembly, its characterized in that, the fuselage assembly includes:

the air conditioner comprises a shell, a fan blade, a fan;

the heat insulation cover is fixed on the shell, the bottom of the heat insulation cover is provided with a central hole for a shaft of the motor to pass through, the heat insulation cover is provided with a heat dissipation air outlet and a heat dissipation air inlet, and the heat dissipation air outlet is communicated with the side air outlet of the shell;

the reflecting cover is fixed above the heat insulation cover and forms a heat dissipation area with the heat insulation cover, and the reflecting cover is penetrated by a shaft of the motor;

a heat radiation fan which is positioned in the heat radiation area and fixed on the shaft of the motor;

the top and the side of the turbofan cover are respectively provided with a top air inlet and a side air inlet, and a heating gap is formed between the edge of the turbofan cover and the reflecting cover;

a turbofan located in the heating zone and fixed on a shaft of the motor;

the heating pipe is positioned in the heating area and is positioned right above the turbofan;

a fry basket located above the turbine housing.

2. The air fryer bottom intake structure according to claim 1, wherein: and a heat insulation gap is reserved between the reflector and the inner wall of the shell.

3. The air fryer bottom intake structure according to claim 2, wherein: a heat dissipation vent is formed in the edge of the heat shield and communicated with the heat insulation gap and the bottom of the shell.

4. The air fryer bottom intake structure according to claim 3, wherein: the side air inlet is close to the top of the shell and communicated with the heat insulation gap.

5. The air fryer bottom intake structure according to claim 4, wherein: an air outlet grid is arranged on the side air outlet.

6. The air fryer bottom intake structure according to claim 5, wherein: and the pins of the heating tubes penetrate through the reflecting cover and are fixed on the heat insulating cover.

7. The air fryer bottom intake structure according to claim 1, wherein: the top of casing is provided with the center, and the bowl is fixed with the center.

8. The air fryer bottom intake structure according to claim 1, wherein: and a shaft sleeve is arranged between the shaft of the motor and the reflecting cover.

9. The air fryer bottom intake structure according to any one of claims 6-8, wherein: and support legs are arranged below the heat shield and are fixed with the bottom of the shell.

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