CN108309091A - Food cooking machine - Google Patents

Abstract

The invention discloses a food cooking machine. The food cooking machine includes a machine base. The machine base includes a casing, a motor accommodated in the casing, an inner casing and a fan; the casing is provided with an air outlet; The motor includes a rotor and a stator sleeved outside the rotor, a gap is formed between the inner wall of the stator and the outer wall of the rotor; a cavity is formed in the inner shell, and one end of the inner shell is sealed The stator is connected, the other end of the inner shell abuts against the casing and covers the outside of the air outlet, and the gap between the stator and the rotor communicates with the cavity of the inner shell to form an air outlet. The air outlet channel communicates with the air outlet; the fan is accommodated in the cavity of the inner shell and is arranged adjacent to the air outlet. In the heat dissipation process of the food cooking machine of the present invention, the air volume utilization rate is high, the heat dissipation effect is good, and the generated noise is small.

Description

food processor

technical field

The invention relates to the technical field of household appliances, in particular to a food cooking machine.

Background technique

Food processors include a variety of machines that use motor-driven mixing blades to crush and compress food. Taking the broken wall cooking machine as an example, the motor speed can reach more than 25,000 rpm, so the stirring knife driven by the motor can instantly break through the cell walls of fruits and vegetables, so it can effectively extract phytochemicals, which is the first choice for modern home health care and health preservation Home appliance.

During the high-speed rotation process of the motor-driven mixing blade of the food cooking machine, the food cooking machine will generate more heat, and the design of the heat dissipation air duct in the existing food cooking machine is poor, so that the utilization rate of the air volume in the heat dissipation process of the cooking machine is low, resulting in The cooling effect of key components such as motors is not good.

Contents of the invention

The main purpose of the present invention is to provide a food cooking machine, which aims to improve the utilization rate of the air volume in the heat dissipation air duct of the food cooking machine and improve the heat dissipation effect of the food cooking machine.

In order to achieve the above object, the food cooking machine proposed by the present invention includes a base, and the base includes a casing and a motor, an inner casing and a fan accommodated in the casing; the casing is provided with an air outlet; The motor includes a rotor and a stator sleeved outside the rotor, a gap is formed between the inner wall of the stator and the outer wall of the rotor; a cavity is formed in the inner shell, and one end of the inner shell is sealed Connected to the stator, the other end of the inner shell abuts against the casing and covers the outside of the air outlet, the gap between the stator and the rotor communicates with the cavity of the inner shell to form a An air channel, the air outlet channel communicates with the air outlet; the fan is accommodated in the cavity of the inner shell and is arranged adjacent to the air outlet.

Preferably, the casing is also provided with an air inlet, and the gap between the inner casing and the outer wall of the stator and the inner wall of the casing forms an air inlet channel, and the air inlet channel communicates with the air outlet channel and the air inlet.

Preferably, the fan is an axial fan, and the fan is connected to the output shaft at the lower end of the rotor.

Preferably, one end of the inner shell close to the air outlet cooperates with the casing to form a muffler chamber, the muffler chamber communicates with the air outlet channel and the air outlet, and the fan is located in the muffler chamber .

Preferably, the central axes of the air outlet channel, the motor, the fan, the air outlet and the sound-absorbing chamber coincide.

Preferably, the inner shell includes a connected air guide tube and a volute, one end of the air guide tube is sleeved on one end of the volute, and the other end of the air guide tube is fixed to the stator, so The other end of the volute abuts against the casing.

Preferably, the volute includes a connected connecting cylinder and a sound-absorbing cover, the connecting cylinder partly protrudes into the air guiding cylinder, the lower end cover of the sound-absorbing cover is arranged outside the air outlet, and the sound-absorbing cover The inner cavity diameter of the cover is larger than the inner cavity diameter of the connecting cylinder.

Preferably, the fan blades of the fan are located within the height range of the connecting cylinder.

Preferably, the inner wall of the sound-absorbing cover is provided with a layer of noise-reducing material.

Preferably, the casing includes a shell and a bottom cover that covers the lower end of the shell, the volute and the bottom cover enclose the sound-absorbing cavity, and a plurality of the As for the air outlet, the air inlet is opened on the edge of the bottom cover, a plurality of the air outlets are arranged in a ring and arranged at intervals, and the center of the ring is located on the rotation axis of the fan.

Preferably, the surface of the bottom cover facing the volute is protruded with an annular protrusion, the annular protrusion surrounds a sound reflection groove, and the annular protrusion is located inside a plurality of annularly arranged air outlets and located below the fan.

Preferably, a snap ring protrudes from the surface of the bottom cover facing the volute, and the snap ring is located outside the plurality of air outlets and partly between the air inlet and the air outlet, so that The lower end of the noise reduction cover is sheathed on the outside of the snap ring.

Preferably, the food cooking machine also includes a stirring cup assembly installed on the upper end of the base, the stirring cup assembly includes a stirring cup, a heating device is provided at the bottom of the stirring cup, and the heating device includes a The heat conduction plate at the bottom of the stirring cup and the electric heating tube or electric heating film arranged at the bottom of the heat conduction plate; or the heating device includes a conduction plate and a coil plate arranged at the bottom of the stirring cup, and the coil plate is located Below and set opposite to the guide disk.

Preferably, the stirring cup assembly also includes a stirring knife assembly partially located in the stirring cup, the stirring knife assembly includes a knife seat fixed on the heat conduction plate or a conduction plate, a stirring knife installed on the knife seat , the knife shaft of the mixing knife is connected to the output shaft at the upper end of the rotor.

Preferably, the food cooking machine includes a broken wall cooking machine, a juice extractor, a soybean milk machine and a blender.

The technical solution of the present invention connects the inner casing with the stator of the motor in the food cooking machine, and the cavity inside the inner casing communicates with the gap between the stator and the rotor in the motor to form an air outlet channel, and at the same time, the fan is accommodated in the inner casing In the cavity and close to the air outlet, when the food processor is working, driven by the fan, when the cooling air flows through the air outlet channel and is discharged from the air outlet, a large amount of air passes through the inner surface of the motor stator and the outer surface of the rotor. , the large amount of heat generated by the motor is quickly discharged from the machine base. Since this food cooking machine uses the gap between the stator and rotor in the motor as part of the air outlet channel, the area of the air channel is reduced, and the utilization rate of the air volume is improved. The heat dissipation efficiency of the food cooking machine is also improved. At the same time, due to the high utilization rate of the air volume in the heat dissipation process of the food cooking machine, the power of the fan driving the air flow can be reduced accordingly, and the diameter of the fan can also be reduced, which can reduce food cooking. The cost of the machine can also reduce the wind noise generated during the operation of the fan.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a schematic structural view of an embodiment of the food cooking machine of the present invention;

Fig. 2 is a schematic cross-sectional structural view of the food cooking machine in Fig. 1;

Fig. 3 is a schematic structural view of the bottom cover of the food cooking machine in Fig. 1;

Fig. 4 is a schematic cross-sectional structural view of the base of the food cooking machine in Fig. 1;

FIG. 5 is an enlarged schematic view of point A in FIG. 4 .

Explanation of reference numbers:

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In the present invention, unless otherwise specified and limited, the terms "connection" and "fixation" should be understood in a broad sense, for example, "fixation" can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

The present invention proposes a food cooking machine 100 .

Please refer to FIG. 1 to FIG. 3 , the food cooking machine 100 of this embodiment is composed of a base 10 located below, and a stirring cup assembly 30 disposed above the base 10, wherein the stirring cup assembly 30 includes a stirring cup 31, The heating device arranged at the lower end of the stirring cup 31 and the stirring knife assembly (not marked) installed on the heating device and partly located in the stirring cup 31, wherein the output shaft motor 15 at the upper end of the motor 15 in the base 10 drives the stirring knife 37 Rotate at high speed to break the cell walls of fruit and vegetable ingredients and obtain fine and fluid ingredients.

The frame 10 includes a casing 11 and a motor 15 housed in the casing 11, an inner casing 13, and a fan 17. The casing 11 is provided with an air outlet 14, and the motor 15 includes a rotor 151 and is sleeved on the rotor 151. The outer stator 153, a gap is formed between the inner wall of the stator 153 and the outer wall of the rotor 151, a cavity (not marked) is formed in the inner shell 13, one end of the inner shell 13 is sealed and connected to the stator 153, and the other end of the inner shell 13 is against Connect the casing 11 and cover it on the outside of the air outlet 14, the gap between the stator 153 and the rotor 151 communicates with the cavity of the inner casing 13 to form an air outlet channel 18 connected to the air outlet 14, and the fan 17 is located in the inner casing 13 and set near the air outlet 14.

In this embodiment, the motor 15 and the inner shell 13 are arranged up and down in the machine base 10. The upper end of the inner shell 13 and the lower end of the stator 153 can be fixedly connected by socketing, welding, gluing, etc. The cavity and the inner shell in the motor 15 The cavity of the casing 13 is connected to form an air outlet channel 18 connected to the air outlet 14. During the operation of the food cooking machine 100, the air entering the casing 11 is passed by the upper end of the motor 15, that is, the gap formed between the stator 153 and the rotor 151. The upper end of the motor enters, and runs toward the air outlet 14 from top to bottom to discharge a large amount of heat generated by the motor 15 during operation. The technical solution of the present invention connects the inner casing 13 with the stator 153 of the motor 15 in the food cooking machine 100, and the cavity of the inner casing 13 communicates with the gap between the stator 153 and the rotor 151 of the motor 15 to form the air outlet channel 18, At the same time, the fan 17 is housed in the inner shell 13 and arranged close to the air outlet 14, then during the working process of the food cooking machine 100, driven by the fan 17, when the cooling air is discharged from the air outlet 14 through the air outlet channel 18, a large amount of air passes through The inner surface of the stator 153 of the motor 15 and the outer surface of the rotor 151 discharge the large amount of heat generated by the motor 15 quickly out of the base 10, because this food cooking machine 100 uses the gap between the stator 153 and the rotor 151 in the motor 15 as a cooling wind part of the air duct, the area of the air duct is reduced, the utilization rate of the air volume is improved, and the heat dissipation efficiency of the food cooking machine 100 is also improved. The power of the fan 17 can also be reduced accordingly, and the diameter of the fan 17 can also be reduced, so that the cost of the food processor 100 can be reduced, and on the other hand, the wind noise generated during the operation of the fan 17 can also be reduced.

In this embodiment, the casing 11 is provided with an air inlet 12, and the gap between the outer walls of the inner casing 13 and the stator 153 and the inner wall of the casing 11 forms an air inlet passage 16, and the air inlet passage 16 communicates with the air outlet passage 18 and the air inlet. Tuyere 12.

It can be understood that the base 10 of the food cooking machine 100 also includes electric control boards such as a main control unit and a control panel electrically connected to the motor 15, and these electric control boards can be arranged in the air inlet channel 16 or the air outlet channel 18 , in this embodiment, the electric control panel is preferably arranged in the air inlet channel 16 to realize the rational utilization of the space in the machine base 10 . As the food cooking machine 100 is running, the electric control board will also generate heat, the outside air enters through the air inlet 12 and rises in the air inlet passage 16, enters the air outlet passage 18 at the top of the motor 15, and finally passes through the air outlet. 14 exhaust, in the air circulation process, the air flow direction is straight up and straight down, the path of the air duct is set reasonably, the generated wind resistance is small, the heat dissipation effect is better, and the noise generated during the air flow is also small.

Furthermore, the fan 17 used in this embodiment is an axial fan 17 , and the fan 17 is connected to the output shaft at the lower end of the rotor 151 of the motor 15 . During the operation of the food cooking machine 100 , the fan 17 is driven by the motor 15 , so there is no need to install an additional driving device, which can reduce the cost of the food cooking machine 100 . From the above, it can be known that the air outlet channel 18 extends vertically downward, and the wind flow direction driven by the axial flow fan 17 is also the axial direction of the fan 17. In this embodiment, the rotation axis of the rotor 151 of the fan 17 extends vertically. Downward, so that the extension direction of the air outlet channel 18 coincides with the wind driving direction of the fan 17, the wind resistance is further reduced, the wind flow is smoother, the wind resistance is reduced, and the wind noise is also reduced.

The inner casing 13 includes a connected air guiding tube 131 and a volute 133, one end of the air guiding tube 131 is socketed with one end of the volute 133, the other end of the air guiding tube 131 is fixed to the stator 153, and the other end of the volute 133 is One end abuts against the casing 11 .

Both the air guide tube 131 and the volute 133 can be made of plastic, and can be produced by integral injection molding. It can be understood that, in other embodiments, the volute 133 and the air guide tube 131 may also be an integral structure.

Specifically, the volute 133 includes a connected connecting cylinder 133a and a muffler cover 133b, the connecting cylinder 133a partly extends into the air guiding cylinder 131, the lower end cover of the muffler cover 133b is arranged on the outside of the air outlet 14, and the inner cavity of the muffler cover 133b The diameter is larger than the inner cavity diameter of the connecting cylinder 133a.

In this embodiment, the volute 133 and the air guide tube 131 are connected by socket, and the installation process is more convenient. At the same time, the diameter of the inner cavity of the muffler cover 133b is larger than that of the connecting cylinder 133a, so that the wind speed in the air outlet passage 18 is reduced after entering the inner cavity of the muffler cover 133b, and the wind noise is further reduced.

Referring to FIG. 5 , the rotation plane of the blades of the fan 17 in this embodiment is within the height range of the connecting cylinder 133 a. As can be seen from the above, the connecting cylinder 133a extends into the air guiding cylinder 131, so that the inner cavity diameter of the connecting cylinder 133a is smaller than the inner cavity diameter of the air guiding cylinder 131, then in the rotation process of the fan 17, the air guiding cylinder 131 can be formed. The air suction effect inside, then the air in the air inlet channel 16 and the air guide tube 131 can be quickly discharged into the volute 133, thereby accelerating the air flow in the machine base 10 and improving the heat dissipation effect.

Further, the central axes of the air outlet channel 18 , the motor 15 , the fan 17 , the air outlet 14 and the muffler cavity 182 are coincident. In this way, the design of the air duct of the food processor 100 is simple, forming a straight-down air flow path, and the noise reduction and heat dissipation effects of the food processor 100 are better.

In order to further reduce the noise and wind noise generated during the operation of the motor 15 and the fan 17 in the machine base 10 , in this embodiment, a layer of noise-reducing material (not shown) is attached to the inner wall of the sound-absorbing cover 133 b. The noise-reducing material layer may preferably be sound-absorbing cotton with a porous structure.

Please refer to FIG. 2 and FIG. 3 in conjunction. The casing 11 of this embodiment includes a casing 111 and a bottom cover 113 covering the lower end of the casing 111. The volute 133 and the bottom cover 113 enclose the muffler cavity 182. The central area of the cover 113 is provided with a plurality of air inlets 12, and the edge of the bottom cover 113 is provided with an air outlet 14. The plurality of air outlets 14 are arranged at intervals in a ring, and the ring formed by the plurality of air outlets 14 is The center of circle is located on the rotation axis of the fan 17.

Because the present embodiment selects the axial flow fan 17 to drive the air flow, during the operation of the fan 17, the wind force directly below the fan 17 is relatively small, while the wind force below the edge of the fan blade of the fan 17 is relatively large, so the plurality of air inlets 12 Evenly spaced and arranged in a ring shape, the air driven by the fan 17 can just be discharged from the air outlet 14 below, the air circulation path is smooth, and the generated wind noise is further reduced.

Further, please refer to FIG. 4 and FIG. 5 in conjunction. In this embodiment, the surface of the bottom cover 113 facing the volute 133 is protruded with an annular protrusion 115. The annular protrusion 115 is surrounded by a sound reflection groove 117. The annular protrusion 115 It is located inside the air outlet 14 and directly below the fan 17 .

During the operation of the food cooking machine 100, when the noise generated during the rotation of the motor 15 and the fan 17 propagates to the air outlet 14 through the air outlet channel 18, part of the noise is weakened by the whirling interference in the sound reflection groove 117, and the other part The noise is reflected into the air outlet channel 18 through the sound reflection groove 117 and interferes with the noise propagating in the air outlet channel 18 toward the air outlet 14 , thereby further weakening the noise generated by the food cooking machine 100 .

In this embodiment, the surface of the bottom cover 113 facing the volute 133 is also protrudingly provided with a snap ring 119. The snap ring 119 is located on the outer side of the ring formed by the plurality of air outlets 14 and is partially located between the air inlet 12 and the air outlet 14 for noise reduction. The lower end of the cover 133b is sleeved on the outside of the snap ring 119 . In this embodiment, the volute 133 and the bottom cover 113 are connected by socketing, which is more convenient during the assembly process of the machine base 10 .

Please refer to FIG. 1 and FIG. 2 again. The food cooking machine 100 of this embodiment also includes a stirring cup assembly 30 installed on the upper end of the machine base 10. The stirring cup assembly 30 includes a stirring cup 31, and a heating device ( Not marked), the heating device includes a heat conduction plate 33 arranged at the bottom of the stirring cup 31 and an electric heating tube 35 or an electric heating film arranged at the bottom of the heat conducting plate 33; or the heating device includes a conduction disk (not shown) arranged at the bottom of the stirring cup 31 and a coil plate (not shown), the coil plate is located below the guiding disc and is set opposite to the guiding disc.

The food cooking machine 100 of this embodiment can adopt resistive heating or electromagnetic heating, and in the electromagnetic heating method, the conductive disk can be made of a magnetically conductive material such as cast iron. In the resistive heating method, the overall structure of the food cooking machine 100 is relatively simple, and the cost is low. In the electromagnetic heating method, the heating effect is better.

The stirring cup assembly 30 also includes a stirring knife assembly partially positioned in the stirring cup 31. The stirring knife assembly includes a knife seat 39 fixed to the heat conduction plate 33 or a guide plate, a stirring knife 37 installed on the knife seat 39, and a stirring knife 37. The cutter shaft is connected with the output shaft at the upper end of the rotor 151 .

In this embodiment, the motor 15 simultaneously drives the stirring knife 37 to rotate and the fan 17 to rotate, so that different power devices are not required, and the cost and installation space of the food processor 100 can be further saved.

The food cooking machine 100 includes a broken wall cooking machine, a juice extractor, a soybean milk machine and a blender. Among them, the wall-breaking cooking machine can integrate the functions of juicer, soybean milk machine, ice cream machine, cooking machine, grinder and other products, which can instantly break down the food cell wall and release phytochemicals.

The above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present invention.

Claims (14)

1. A food cooking machine, characterized in that it comprises a machine base, and the machine base includes a casing and a motor, an inner casing and a fan accommodated in the casing; The casing is provided with an air outlet; The motor includes a rotor and a stator sheathed outside the rotor, and a gap is formed between the stator and the rotor; A cavity is formed in the inner shell, one end of the inner shell is sealed and connected to the stator, the other end of the inner shell abuts against the casing and covers the outside of the air outlet, the stator and the The gap between the rotors communicates with the cavity of the inner shell to form an air outlet channel, and the air outlet channel communicates with the air outlet; The fan is accommodated in the cavity of the inner casing and is arranged adjacent to the air outlet. 2. The food cooking machine according to claim 1, wherein the casing is also provided with an air inlet, and the gap between the inner casing and the outer wall of the stator and the inner wall of the casing forms an air inlet. The air inlet channel communicates with the air outlet channel and the air inlet. 3. The food cooking machine according to claim 1, wherein the fan is an axial fan, and the fan is connected to an output shaft at the lower end of the rotor. 4. The food cooking machine according to claim 2, wherein an end of the inner casing close to the air outlet and the casing cooperate to form a sound-absorbing chamber, and the sound-absorbing chamber communicates with the air outlet channel and The air outlet and the fan are located in the sound-absorbing cavity. 5 . The food cooking machine according to claim 4 , wherein the central axes of the air outlet channel, the motor, the fan, the air outlet, and the sound-absorbing chamber coincide. 6 . 6. The food cooking machine according to claim 4, wherein the inner shell includes a connected air guide tube and a volute, and one end of the air guide tube is sleeved on one end of the volute, so that The other end of the air guide tube is fixedly connected to the stator, and the other end of the volute abuts against the casing. 7. The food cooking machine according to claim 6, wherein the volute includes a connected connecting cylinder and a sound-absorbing cover, the connecting cylinder partly extends into the air-guiding cylinder, and the sound-absorbing cover The lower end cover is arranged outside the air outlet, and the inner cavity diameter of the sound-absorbing cover is larger than the inner cavity diameter of the connecting cylinder. 8 . The food cooking machine according to claim 7 , wherein the blades of the fan are located within the height range of the connecting cylinder. 9. The food cooking machine according to claim 7, characterized in that, the inner wall of the sound-absorbing cover is provided with a layer of noise-reducing material. 10. The food cooking machine according to any one of claims 7 to 9, wherein the casing comprises a casing and a bottom cover that covers the lower end of the casing, and the volute and the bottom cover Enclosing the muffler chamber, the central area of the bottom cover is provided with a plurality of air outlets, the edge of the bottom cover is provided with the air inlets, and the plurality of air outlets are arranged in a ring and arranged at intervals, And the center of the ring is located on the rotation axis of the fan. 11. The food cooking machine according to claim 10, characterized in that, the surface of the bottom cover facing the volute is protruded with an annular protrusion, and the annular protrusion is surrounded by a sound reflection groove, and the annular protrusion The protrusions are located inside the plurality of annular air outlets and below the fan. 12. The food cooking machine according to claim 10, wherein a snap ring protrudes from the surface of the bottom cover facing the volute, and the snap ring is located on the outside of a plurality of the air outlets and partly Located between the air inlet and the air outlet, the lower end of the noise reduction cover is sleeved on the outside of the snap ring. 13. The food cooking machine according to claim 1, further comprising a stirring cup assembly mounted on the upper end of the machine base, the stirring cup assembly comprising a stirring cup, the bottom of the stirring cup A heating device is provided, and the heating device includes a heat conduction plate arranged at the bottom of the stirring cup and an electric heating tube or an electric heating film arranged at the bottom of the heat conduction plate; or the heating device includes a conduction plate arranged at the bottom of the stirring cup A magnetic disk and a coil disk, the coil disk is located below the guide disk and opposite to the guide disk. 14. The food cooking machine according to claim 13, wherein the stirring cup assembly further includes a stirring knife assembly partially located in the stirring cup, and the stirring knife assembly includes a The knife seat of the magnetic disk, the stirring knife installed on the knife seat, the knife shaft of the stirring knife is connected with the output shaft at the upper end of the rotor.