WO2018064882A1

WO2018064882A1 - Upper cover with stirring function and electric cooking appliance

Info

Publication number: WO2018064882A1
Application number: PCT/CN2017/081019
Authority: WO
Inventors: 邹伟; 江德勇; 王云峰; 曾露添; 罗绍生; 蒙剑友; 江太阳
Original assignee: 佛山市顺德区美的电热电器制造有限公司
Priority date: 2016-10-08
Filing date: 2017-04-19
Publication date: 2018-04-12
Also published as: CN106388619A; CN106388619B

Abstract

An upper cover with a stirring function and an electric cooking appliance, the upper cover comprising a cover body assembly and a stirrer assembly, a rotating motor (1) being arranged inside the cover body assembly, the upper cover also comprising a magnet assembly arranged between a rotating shaft (6) of the stirrer assembly and an output shaft (11) of the rotating motor (1), the rotating shaft (6) forming a detachable magnetic connection with the output shaft (11) by means of the magnet assembly and being driven to rotate by the output shaft (11).

Description

Upper cover with electric stirring and electric cooking utensils

Technical field

The invention belongs to the field of household appliances, and in particular to an upper cover with a stirring function and an electric cooking appliance.

Background technique

In electric cooking appliances, such as cooking machines, most of them have a stirring assembly (such as a stirring rod) with a stirring function, which is inserted into the pot. Under the action of the motor, the stirring assembly continuously stirs the food in the pan to heat evenly.

Typically, such agitating assemblies are top mounted, i.e., attached within the upper cover and projecting downwardly, and the motor is also mounted to the inner cover. However, the mounting structure of the stirring assembly is complicated and cumbersome, especially difficult to disassemble and assemble, so that the cleaning of the components is no small trouble.

Summary of the invention

In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides an upper cover with a stirring function and an electric cooking appliance having the same. The installation structure of the agitator assembly is simple, practical, easy to operate, and convenient for cleaning.

In order to achieve the above object, the present invention provides an upper cover with a stirring function, the upper cover includes a cover assembly and a stirrer assembly, and the cover assembly is provided with a rotary electric machine, and the upper cover further includes a magnet assembly between a rotating shaft of the agitator assembly and an output shaft of the rotating electrical machine, the rotating shaft forming a detachable magnetic connection with the output shaft through the magnet assembly and capable of being output by the output shaft Drive rotation.

According to some embodiments of the present invention, the magnet assembly includes an upper magnet assembly and a lower magnet assembly of the same structure, the upper magnet assembly being mounted at a bottom end of the output shaft, and the lower magnet assembly being mounted on the rotating shaft a top end, the upper magnet assembly and the lower magnet assembly respectively comprise an even number of magnets arranged at intervals in the circumferential direction, on the bottom surface of the upper magnet assembly and the top surface of the lower magnet assembly, the even number of magnets The magnetic poles are sequentially shifted in the circumferential direction.

Further, the upper magnet assembly further includes a magnet tray, the magnet tray is set on the output shaft of the rotating electrical machine to follow the rotation, and the magnet tray is provided with a plurality of magnet cavities arranged in the circumferential direction at intervals. The upper magnet of the upper magnet assembly is embedded in the magnet cavity and is covered by a cover plate.

In some embodiments of the invention, an even number of lower magnets of the lower magnet assembly are disposed at a top end portion of the rotating shaft of the agitator assembly.

Further, the agitator assembly includes a bearing, and a top end portion of the rotating shaft is sleeved in the bearing and is rotatable relative to the bearing.

Further, the cover assembly includes an inner cover and an outer casing portion over the inner cover, and the rotary electric machine and the upper magnet assembly are disposed in a cavity between the outer casing portion and the inner cover .

In some embodiments of the present invention, the inner cover is provided with a bearing seat, and a bottom surface of the bearing seat is formed with a downwardly open bearing card slot, and when the upper magnet assembly and the lower magnet assembly are magnetically connected, The bearing is at least partially embedded upwardly in the bearing cartridge.

Optionally, a mounting gap is formed between a top end surface of the top end portion of the rotating shaft and a groove surface of the bearing card groove.

In an alternative embodiment of the invention, the bearing is a ceramic bearing.

Based on the above, the present invention also provides an electric cooking appliance, the electric cooking appliance The utility model comprises a pot and the above-mentioned upper cover with a stirring function, and the agitator assembly of the upper cover protrudes into the pot.

According to some embodiments of the present invention, the electric cooking appliance is an IH-heated cooking machine, the cooking machine further comprising an IH heating tray and a casing disposed around the outside of the pan, the IH heating plate being disposed in the The bottom of the pot.

Optionally, the pot is a stainless steel pot, and the agitator assembly and the magnet assembly are electromagnetically unheated materials.

In the agitating upper cover and the electric cooking appliance of the present invention, the rotating shaft of the agitator assembly is not directly fixedly coupled to the cover body, but the magnet assembly is added to form a magnetic field between the rotating shaft and the output shaft of the rotating electrical machine. Suction connection, the connection of the magnetic connection is highly reliable, especially for easy disassembly and cleaning, and also ensures that the rotating shaft closely follows the rotation of the output shaft to achieve the purpose of effectively tumbling the food in the pan.

Other features and advantages of the invention will be described in detail in the detailed description which follows.

DRAWINGS

The accompanying drawings, which are incorporated in the claims In the drawing:

1 is a schematic structural view of an upper cover and an electric cooking appliance with a stirring function according to an alternative embodiment of the present invention;

Figures 2 and 3 show the magnetic pole arrangement of the magnets on the bottom surface of the upper magnet assembly and the top surface of the lower magnet assembly, respectively.

Description of the reference signs:

100 outer casing part 200 inner cover

300 pots 400 IH heating plate

500 case

1 rotating motor 2 upper magnet assembly

3 lower magnet assembly 4 housing

5 bearing 6 rotating shaft

7 rotating blades

11 output shaft 21 magnet tray

22 upper magnet 23 cover

31 lower magnet 41 bearing card slot

61 Top section J Mounting clearance

detailed description

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative and not restrictive.

It should be noted that the embodiments in the present invention and the features in the embodiments may be combined with each other without conflict.

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

In the present invention, the orientation words such as "up, down, top, and bottom" are generally used for the directions shown in the drawings or for vertical, vertical or gravity directions, unless otherwise stated. In the above, the components are described in terms of their positional relationship. Directional words such as "inside and outside" refer to the chamber Inside and outside or inside and outside the pot.

As shown in FIG. 1 , the present invention provides an upper cover with a stirring function, which comprises a cover assembly and an agitator assembly. The cover assembly is provided with a rotary electric machine 1 , and the output shaft 11 of the rotary electric machine 1 The lower shaft extends to drive the rotation of the rotating shaft 6 of the agitator assembly, wherein the upper cover here further comprises a magnet assembly, the rotating shaft 6 forming a detachable magnetic connection with the output shaft 11 through the magnet assembly and capable of following the output shaft 11 Rotate.

The magnetic connection is different from the conventional fixed connection between the output shaft 11 and the rotating shaft 6. The magnetic connection is easy to remove, and the rotating shaft 6 can be taken out by direct manual pulling. The same is true for the installation, and the rotating shaft 6 is close to the output. The shaft 11 and the magnet assembly can form a magnetic attraction force. The removed rotating shaft 6 can be independently cleaned, which is extremely convenient.

Wherein, the magnetic connection needs to calculate the required magnetic attraction force according to specific working conditions, such as the maximum torque when the agitator assembly is operated, etc., thereby rotating the magnet or adjusting the output shaft 11 and the rotating shaft 6 Spacing, etc.

In FIG. 1, as an example, the magnet assembly described above may include an upper magnet assembly 2 and a lower magnet assembly 3 of the same structure, and the upper magnet assembly 2 and the lower magnet assembly 3 respectively include an even number of magnets arranged in order along the circumferential direction (eg, 4 and 3), on the bottom surface of the upper magnet assembly 2 and the top surface of the lower magnet assembly 3, the magnetic poles of an even number of magnets are sequentially shifted in the circumferential direction, for example, the magnetic poles in the circumferential direction are in the form of NSNSNS. Distribution, as shown in Figure 2, Figure 3. Since the number of the powerful magnets of the upper and lower magnet assemblies is the same and the magnetic pole distribution is the same, when the rotary electric machine 1 drives the output shaft 11 to rotate, a coupled rotating magnetic field is generated to drive the rotating shaft 6 to rotate, thereby driving the rotating blades 7 at the bottom end of the agitator assembly to rotate. Achieve the stirring function. At the time of installation, the agitator assembly can be held close to the rotary electric machine 1, and the upper magnet assembly 2 and the lower magnet assembly 3 are attracted to each other. When disassembling, the agitator assembly can be directly removed.

Specifically, in order to fix the upper magnet assembly 2 to the output shaft 11 to follow its rotation, the upper magnet assembly 2 shown in FIG. 1 further includes a magnet tray 21 that is fixedly fitted to the output shaft 11 of the rotary electric machine 1 to follow Rotating, the magnet tray 21 is provided with a plurality of magnet cavities which are sequentially arranged in the circumferential direction, and the upper magnet 22 of the upper magnet assembly 2 is fitted into the magnet cavity and covered by the cap plate 23. The shape of the magnet cavity is substantially the same as the shape and size of the upper magnet 22, and the upper magnet 22 can be firmly embedded in the magnet cavity. The cover plate 23 covers the magnet 22 to further prevent the upper magnet 22 from being pulled up when rotated. Of course, the structure and the mounting structure of the upper magnet assembly 2 are not limited thereto. For example, in the case where the size of the output shaft 11 is large enough, and the size of the ferromagnetic upper magnet 22 is small enough, the upper magnet 22 is small. It can also be directly embedded in the output shaft 11.

Similarly, the lower magnet assembly 3 can also be fixed to the top end portion 61 of the rotary shaft 6 in the form of a magnet tray or bracket similarly to the upper magnet assembly 2. However, in the embodiment shown in Fig. 1, the tip end portion 61 of the rotary shaft 6 projects radially, and the diameter of the remaining stem portion is larger than that of the rotary shaft 6, so that the tip end portion 61 has a sufficient size to accommodate the magnet inlaid therein. Therefore, the even number of lower magnets 31 of the lower magnet assembly 3 are provided at the tip end portion 61 of the rotating shaft 6 of the agitator assembly, for example, can be fixedly fitted into the top surface recess of the tip end portion 61.

In addition, in order to maintain the rotational positioning of the rotating shaft 6, the agitator assembly may further include a bearing 5, the top end portion 61 of the rotating shaft 6 is sleeved in the bearing 5, and the bearing 5 may be fixedly disposed, and the top end portion 61 therein is capable of being opposed to The bearing 5 is self-rotating. By providing the bearing 5, it is ensured that the rotation shaft 6 does not deflect or oscillate when it rotates. Among them, the bearing 5 can be a non-rusting and environmentally friendly ceramic bearing suitable for use in a food processing device.

In the upper cover with a stirring function of the present embodiment, the cover assembly includes an inner cover 200 and an outer casing portion 100 that covers the inner cover 200. The outer casing portion 100 in Fig. 1 is a handle housing for mounting an electrical connection portion. The rotary electric machine 1 and the upper magnet assembly 2 may be disposed between the outer casing portion 100 and the inner cover 200 Inside the cavity. At the same time, the central part of the inner cover 200 may be provided with a through hole, and the through hole is sealed and mounted on the bearing seat 4, and the upper card slot of the bearing seat 4 is set as a magnet tray slot for mounting the upper magnet assembly 2 and the bottom surface of the bearing housing 4. A bearing slot 41 can be formed with a downward opening. When the upper magnet assembly 2 and the lower magnet assembly 3 are magnetically coupled to each other, the upwardly adsorbed bearing 5 is at least partially embedded upward into the bearing slot 41 to achieve the bearing 5 The limit, in particular the lower end 61 of FIG. 1, is also provided with a larger outer diameter flange which projects the bearing 5 into the bearing slot 41 and is axially positioned. Thus, the position of the bearing 5 with respect to the bearing housing 4 and the inner cover 200 is completely fixed.

In particular, when the distal end portion 61 of the rotary shaft 6 is fitted into the bearing insertion groove 41 upward, a vertically spaced installation gap J is formed between the distal end surface of the distal end portion 61 and the groove surface of the bearing engagement groove 41. Thus, when the rotating shaft 6 follows the rotation of the output shaft 11, the tip end surface of the tip end portion 61 does not generate any rotational friction with the bearing housing 4, and the rotational frictional resistance is reduced.

In the above-mentioned upper cover with a stirring function, the magnetic connection between the rotating shaft 6 and the output shaft 11 is easy to disassemble, so that the former can follow the latter rotary motion and can combine or disassemble the two when necessary. It is convenient for parts to be stored, maintained and transported, and easy to assemble. The split mixer assembly is easier to clean.

On the basis of this, the electric cooking appliance including the pan 300 shown in Fig. 1 employs the above-mentioned upper cover with a stirring function, and the agitator assembly of the upper cover extends into the pan 300 to stir the processed food. Such an electric cooking appliance may be an automatic cooking machine such as an IH heating (or heat pipe heating) cooking machine or the like. Of course, the above-mentioned upper cover with a stirring function is not limited to use in an automatic cooking machine such as a cooking machine, and can be extended to any other electric appliance used for an upper cover requiring a stirring function, such as a blender or a soymilk machine.

In FIG. 1, the IH-heated cooking machine includes an IH heating pan 400 and a casing 500 disposed around the outer periphery of the pan 300, and an IH heating pan 400 is disposed at the bottom of the pan 300 to electromagnetically heat the pan 300. Among them, the material of the pot 300 can be a weakly magnetic material, and can be applied to electromagnetic heating. Cause Thus, the pan 300 can be a stainless steel pan, such as 304 stainless steel or the like. Likewise, the agitator assembly and magnet assembly, etc., can be electromagnetically unheated materials so that components such as the agitator assembly and the magnet assembly are not heated while the IH heating plate 400 is in operation.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalents, improvements, etc., such as the upper magnet assembly 2 and the lower part, are made within the spirit and principles of the present invention. The number of magnets in the magnet assembly 3 is not limited to four as shown in FIG. 2 and FIG. 3, and may be more six, eight, etc., and is not limited to the circular magnet shown, and the magnet may be Permanent magnets or electromagnets, and the like, are intended to be included within the scope of the present invention.

It should be further noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention has various possibilities. The combination method will not be described separately.

In addition, any combination of various embodiments of the invention may be made as long as it does not deviate from the idea of the invention, and it should be regarded as the disclosure of the invention.

Claims

An upper cover with a stirring function, comprising a cover assembly and a stirrer assembly, wherein the cover assembly is provided with a rotating electrical machine, wherein the upper cover further comprises a rotating shaft disposed on the agitator assembly a magnet assembly between the output shafts of the rotating electrical machine, the rotating shaft forming a detachable magnetic connection with the output shaft through the magnet assembly and capable of being driven to rotate by the output shaft.
The upper cover with a stirring function according to claim 1, wherein the magnet assembly comprises an upper magnet assembly and a lower magnet assembly having the same structure, the upper magnet assembly being mounted at a bottom end of the output shaft, the lower portion a magnet assembly mounted on a top end of the rotating shaft, the upper magnet assembly and the lower magnet assembly respectively including an even number of magnets sequentially spaced in a circumferential direction, a bottom surface of the upper magnet assembly and a top surface of the lower magnet assembly Upper, the magnetic poles of the even number of magnets are sequentially shifted in the circumferential direction.
The upper cover with a stirring function according to claim 2, wherein the upper magnet assembly further comprises a magnet tray, the magnet tray is fitted on an output shaft of the rotating electrical machine to follow the rotation, and the magnet tray is provided There are a plurality of magnet cavities arranged at intervals in the circumferential direction, and an upper magnet of the upper magnet assembly is embedded in the magnet cavity and covered by a cover plate.
The upper cover with a stirring function according to claim 2 or 3, wherein an even number of lower magnets of the lower magnet assembly are provided at a tip end portion of the rotating shaft of the agitator assembly.
The upper cover with a stirring function according to claim 4, wherein the agitator assembly includes a bearing, and a tip end portion of the rotating shaft is sleeved in the bearing and is rotatable relative to the bearing.
The upper cover with a stirring function according to claim 5, wherein the cover assembly comprises an inner cover and an outer casing portion over the inner cover, and the rotary electric machine and the upper magnet assembly are disposed at Inside the cavity between the outer casing portion and the inner cover.
The upper cover with a stirring function according to claim 6, wherein the inner cover is provided with a bearing seat, and a bottom surface of the bearing seat is formed with a downwardly open bearing card groove, the upper magnet assembly and the lower magnet When the assembly is magnetically coupled, the bearing is at least partially embedded upwardly into the bearing slot.
The upper cover with a stirring function according to claim 7, wherein a mounting gap is formed between a distal end surface of the distal end portion of the rotating shaft and a groove surface of the bearing card groove.
The upper cover with a stirring function according to claim 5, wherein the bearing is a ceramic bearing.
An electric cooking appliance comprising a pan and an agitating upper cover according to any one of claims 1 to 9, the agitator assembly of the upper cap extending into the pan.
The electric cooking appliance according to claim 10, wherein the electric cooking appliance is an IH-heated cooking machine, the cooking machine further comprising an IH heating tray and a machine disposed outside the cookware The shell, the IH heating tray is disposed at the bottom of the pot.
The electric cooking appliance according to claim 11, wherein the pan is a stainless steel pan, and the agitator assembly and the magnet assembly are electromagnetically unheated materials.