Food processor with compact structure

Abstract

The utility model discloses a food processor with a compact structure, which relates to the field of life electric appliances and comprises a cup body assembly, the cup body assembly comprises a cup body with an upper opening and a lower opening, a heating disc and a cup base, the heating disc is provided with a stirring cutter, and the food processor further comprises a brushless motor which is arranged below the heating disc and drives the stirring cutter to rotate. The cup body assembly further comprises a cup body shell arranged on the outer side of the brushless motor in a covering mode, the brushless motor comprises a stator and a rotor, the cup body shell is fixedly connected with the cup base to fix the stator and the rotor, the number of parts of the whole motor and the number of parts of the whole machine are reduced, the compactness of the internal structure of the whole machine is further improved, and the service life of the whole machine is prolonged. And the overall weight is further reduced. Meanwhile, the axial heights of the brushless motor and the heating disc are compressed, so that the axial height of the whole machine is lower and thinner, the occupied space of the food processor is further reduced, the gravity center height of the whole machine is reduced, and the food processor is more stable during working.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and particularly relates to a food processor with a compact structure. Background Art

[0002] Existing food processors generally include a main body and a cup assembly with a stirring member disposed therein. A series-wound motor in the main body is in transmission connection with the stirring member. When a user uses the food processor to process food materials, the food materials are placed in the cup assembly, and the stirring member rotates at a high speed driven by the series-wound motor to achieve the crushing and processing of the food materials. However, since the series-wound motor generates relatively large noise during operation, some manufacturers replace the series-wound motor with a brushless motor to reduce the noise of the whole machine during operation. When assembling the brushless motor, first fix the stator and rotor of the brushless motor between the upper cover and the lower cover, and then fix the whole brushless motor below the cup. This assembly method has cumbersome steps and low assembly efficiency. At the same time, the axial dimension of the brushless motor is relatively large, resulting in too high an axial height of the whole machine after it is installed on the cup, further increasing the center of gravity of the whole machine, causing the food processor to shake or even tip over during food material processing due to too high a center of gravity. Moreover, the weight and occupied space of the whole cup assembly are relatively large, making it very laborious for the user to pick up the whole machine and very inconvenient to store, seriously affecting the consumer experience. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a food processor with a compact structure, so as to solve the problems in the existing food processor that the assembly of the brushless motor is relatively cumbersome and its axial dimension is relatively large, resulting in too large an axial dimension of the whole machine after it is installed on the cup, causing too high a center of gravity of the whole machine and unstable operation.

[0004] To achieve the above purpose, the utility model provides a food processor with a compact structure, including a cup assembly. The cup assembly includes a cup with upper and lower openings, a heating plate disposed at the lower opening of the cup, and a cup base disposed below the heating plate and connected to the cup. The heating plate is provided with a stirring knife. The food processor further includes a brushless motor disposed below the heating plate and driving the stirring knife to rotate. The cup assembly further includes a cup housing covering the outside of the brushless motor. The brushless motor includes a stator and a rotor. The cup housing is fixedly connected to the cup base to fix the stator and the rotor.

[0005] By using a brushless motor and leveraging its characteristics, when the user uses the food processor to process food ingredients, the motor rotates with lower noise, achieving the effect of noise reduction. At the same time, the brushless motor can achieve variable frequency control, enabling the food processor to control the brushless motor to output different speeds according to different food ingredients and processing processes, which can make the processing effect of the food ingredients better and the processing more sufficient, improving the output taste of the food ingredients. Moreover, the brushless motor occupies less space, which helps to improve the compactness of the internal structure of the whole machine and reduce the occupied space of the food processor, facilitating the user's storage.

[0006] At the same time, the cup body housing is fixedly connected to the cup base to fix the stator and the rotor. Compared with the existing method that requires an additional upper cover and lower cover, fixing the stator and the rotor between the upper cover and the lower cover and then fixing the whole brushless motor on the heating plate, this solution also realizes the assembly of the brushless motor when assembling the whole machine, simplifies the installation steps, and at the same time eliminates the upper cover and lower cover of the motor, greatly simplifying the overall number of components of the whole motor and the whole machine, which helps to further improve the compactness of the internal structure of the whole machine and further reduce the overall weight. At the same time, it compresses the axial height between the brushless motor and the heating plate, so that the axial height of the whole machine is lower and thinner, further reducing the occupied space of the food processor. At the same time, it reduces the center of gravity height of the whole machine, making the food processor more stable during operation, and at the same time facilitating the user to pick up the whole machine, improving the user experience.

[0007] In a preferred implementation of a structurally compact food processor, the cup body housing includes a support seat supporting below the stator and the rotor and a surrounding plate extending upward from the support seat, and the surrounding plate is fixedly connected to the cup body or the cup base.

[0008] By setting the cup body housing to include a support seat supporting below the stator and the rotor and a surrounding plate extending upward from the support seat, the cup body housing can be fixedly connected to the cup body or the cup base by means of the surrounding plate, and then the stator and the rotor are clamped between the cup body housing and the cup base through the support seat to realize the fixation of the stator and the rotor, ensuring the reliability of the positions of the stator and the rotor.

[0009] In a preferred implementation of a structurally compact food processor, the support seat is provided with a support plate extending upward, and the top end of the support plate supports below the stator.

[0010] By setting the support seat with a support plate extending upward and the top end of the support plate supporting below the stator, the support seat realizes the support and limitation of the stator through the support plate, ensuring the stability of the stator position. Furthermore, when the rotor rotates, after the vibration is transmitted to the stator, the stator can maintain its original position, avoiding the situation where the stator collides with the support seat due to large vibrations of the stator against the rotor, reducing the generation of noise.

[0011] In a preferred implementation of a structurally compact food processor, the brushless motor further includes a rotating shaft drivingly connected to the rotor. A lower bearing is provided at the bottom end of the rotating shaft, and the support base is provided with a limiting rib extending upward and surrounding the outside of the lower bearing.

[0012] By providing a limiting rib on the support base that extends upward and surrounds the outside of the lower bearing, radial limitation of the lower bearing is achieved, improving the position reliability of the lower bearing, and thus ensuring the stability when the brushless motor rotates.

[0013] In a preferred implementation of a structurally compact food processor, the cup body housing is further provided with an installation post extending upward, the cup base is provided with an installation hole vertically aligned with the installation post, and the cup body assembly further includes a connecting member that passes through the installation post and is fastened to the installation hole.

[0014] By providing an installation post extending upward on the cup body housing and an installation hole vertically aligned with the installation post on the cup base, when assembling the stator, rotor, and cup base, only by passing the first connecting member through the installation hole and fastening it to the installation hole can the installation be achieved. The assembly steps are simple, which helps to further improve the assembly efficiency. At the same time, by connecting and fixing the three with one connecting member, the coaxiality of the whole machine can be ensured, thereby improving the stability of the brushless motor rotation and the stability of the whole machine operation.

[0015] In a preferred implementation of a structurally compact food processor, the installation post is provided outside the stator, and the stator abuts against the installation post.

[0016] By providing the installation post outside the stator and having the stator abut against the installation post, while the installation post realizes the connection between the cup base and the cup body housing, it can also achieve radial limitation of the stator, improving the functionality of the installation post. At the same time, it enhances the limiting effect of the cup body housing on the stator, ensuring the stability of the stator position, and further improving the stability of the brushless motor rotation.

[0017] In a preferred implementation of a structurally compact food processor, the cup body housing forms a receiving cavity for receiving the rotor and the stator, and the cavity wall of the receiving cavity is provided with ventilation holes communicating the receiving cavity with the outside.

[0018] By providing ventilation holes on the cavity wall of the receiving cavity that communicate the receiving cavity with the outside, outside air can enter the receiving cavity through the ventilation holes, and dissipate heat from the stator and rotor in the receiving cavity, reducing the temperature rise of the brushless motor, avoiding the situation of serious aging of the brushless motor due to high temperature, and helping to improve the service life of the brushless motor.

[0019] In a preferred implementation of a structurally compact food processor, the brushless motor further includes a rotating shaft drivingly connected to the rotor. A cooling fan is provided at the bottom end of the rotating shaft, and a ventilation hole is provided below the cooling fan, and at least a part of the vertical projection of the cooling fan falls into the ventilation hole.

[0020] By providing a cooling fan at the bottom end of the rotating shaft, the air in the accommodation cavity can flow more rapidly driven by the cooling fan, which helps to increase the air flow rate flowing into the accommodation cavity through the ventilation hole per unit time, and further improves the heat dissipation effect on the stator and rotor and reduces its temperature rise. At the same time, the ventilation hole is provided below the cooling fan, and at least a part of the vertical projection of the cooling fan falls into the ventilation hole, enabling the cooling fan to directly guide the air at the ventilation hole, which helps to further improve the air flow efficiency and further enhance the heat dissipation effect.

[0021] In a preferred implementation of a structurally compact food processor, the brushless motor further includes a rotating shaft drivingly connected to the rotor. An upper bearing is provided at the top end of the rotating shaft, and the heating plate is provided with a mounting groove for accommodating the upper bearing.

[0022] By providing an upper bearing at the top end of the rotating shaft, radial limitation of the top end of the rotating shaft is achieved, which helps to further improve the coaxiality of the rotating shaft and the rotor, and avoid the situation that the rotating shaft has a large deflection or even jams during high-speed rotation due to low coaxiality, thus improving the stability of food processing. At the same time, the heating plate is provided with a mounting groove for accommodating the upper bearing to achieve the limit fixation of the upper bearing, and at the same time, the need for another structural component to achieve the limit of the upper bearing is eliminated, which helps to further reduce the number of parts of the whole machine, improve the position reliability of the upper bearing, and further ensure the stability during the rotation of the brushless motor. Description of the Drawings

[0023] The drawings described herein are used to provide a further understanding of the present invention and form a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0024] Figure 1 is a schematic structural diagram of a cup body assembly in an embodiment of the present invention;

[0025] Figure 2 is a cross-sectional view of a cup body assembly in an embodiment of the present invention;

[0026] Figure 3 is Figure 2 an enlarged view of part A in

[0027] Figure 4 is a schematic structural diagram of a cup body housing in an embodiment of the present invention;

[0028] Figure 5 Schematic diagram of the structure of the cup base in an embodiment of the present utility model.

[0029] List of components and reference numerals:

[0030] 1 - Cup body; 2 - Cup body housing, 21 - Support base, 211 - Support plate, 212 - Limit rib, 22 - Enclosing plate; 23 - Ventilation hole, 24 - Mounting post; 3 - Stirring blade; 4 - Heating plate; 5 - Stator; 6 - Rotor; 7 - Lower bearing; 8 - Upper bearing; 9 - Rotating shaft; 10 - Cooling fan; 11 - Cup base, 111 - Mounting hole. Detailed implementation manners

[0031] In order to more clearly illustrate the overall concept of the present utility model, the following will be further described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0032] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific implementation manners disclosed below.

[0033] As Figures 1 to 5 shown, the utility model provides a food processor with a compact structure, including a cup body assembly. The cup body assembly includes a cup body 1 with openings at both the top and bottom, a heating plate 4 provided at the lower opening of the cup body 1, and a cup base 11 provided below the heating plate 4 and connected to the cup body 1. The heating plate 4 is provided with a stirring blade 3. The food processor further includes a brushless motor provided below the heating plate 4 and driving the stirring blade 3 to rotate. The cup body assembly further includes a cup body housing 2 covering the outside of the brushless motor. The brushless motor includes a stator 5 and a rotor 6. The cup body housing 2 is fixedly connected to the cup base 11 to fix the stator 5 and the rotor 6.

[0034] In this application, by using a brushless motor and relying on the characteristics of the brushless motor, when the user uses the food processor to process food ingredients, the noise generated by the rotation of the motor is lower, achieving the effect of noise reduction. At the same time, the brushless motor can achieve frequency conversion control, enabling the food processor to control the brushless motor to output different speeds according to different food ingredients and during the processing process, which can make the processing effect of the food ingredients better and the processing more sufficient, improving the taste of the processed food ingredients. Moreover, the brushless motor occupies less space, which helps to improve the compactness of the internal structure of the whole machine, reduce the occupied space of the food processor, and facilitate the user to store.

[0035] Meanwhile, the cup body housing 2 is fixedly connected to the cup base 11 to fix the stator 5 and the rotor 6. Compared with the existing structure that requires an additional upper cover and lower cover, fixing the stator 5 and the rotor 6 between the upper cover and the lower cover, and then fixing the entire brushless motor on the heating plate 4, this solution realizes the assembly of the brushless motor during the assembly of the whole machine, simplifies the installation steps, and eliminates the upper cover and the lower cover of the motor, greatly simplifying the overall number of components of the entire motor and the whole machine, helping to further improve the compactness of the internal structure of the whole machine, and further reducing the overall weight. At the same time, it compresses the axial height of the brushless motor and the heating plate 4, making the axial height of the whole machine lower and thinner, further reducing the occupied space of the food processor, while reducing the center of gravity height of the whole machine, making the food processor more stable during operation, and facilitating the user to pick up the whole machine, thus enhancing the user experience.

[0036] It should be noted that the structure of the cup base 11 is not specifically limited in this application. As a preferred embodiment of this application, as Figure 2 and Figure 5 shown, the cup base 11 is of an annular structure, with an avoidance opening in the middle for the top of the brushless motor to protrude upward; the cup base 11 can also be a complete plate-like structure, and at this time, the top of the brushless motor can be adjacent to or in contact with the cup base 11. In both of the above two solutions, the brushless motor is arranged below the heating plate 4, which will not be elaborated here.

[0037] As a preferred embodiment of this application, as Figure 2 shown, the cup body housing 2 includes a support seat 21 supporting below the stator 5 and the rotor 6 and a surrounding plate 22 extending upward from the support seat 21, and the surrounding plate 22 is fixedly connected to the cup body 1 or the cup base 11. Preferably, as Figure 2 shown, the surrounding plate 22 is fixedly connected to the outside of the cup base 11.

[0038] By setting the cup body housing 2 to include a support seat 21 supporting below the stator 5 and the rotor 6 and a surrounding plate 22 extending upward from the support seat 21, the cup body housing 2 can be fixedly connected to the cup body 1 or the cup base 11 by means of the surrounding plate 22, and then the stator 5 and the rotor 6 are clamped between the cup body housing 2 and the cup base 11 through the support seat 21 to realize the fixation of the stator 5 and the rotor 6, ensuring the reliability of the positions of the stator 5 and the rotor 6.

[0039] Furthermore, as Figure 2 shown, the support seat 21 is provided with a support plate 211 extending upward, and the top of the support plate 211 supports below the stator 5.

[0040] By providing a support plate 211 that extends upward on the support base 21, and the top end of the support plate 211 supports below the stator 5, the support base 21 realizes the support and limitation of the stator 5 through the support plate 211, ensuring the stability of the position of the stator 5. Further, when the rotor 6 rotates, after the vibration is transmitted to the stator 5, the stator 5 can maintain its original position, avoiding the situation where the stator 5 collides with the support base 21 due to large vibrations of the stator 5 against the rotor 6, and reducing the generation of noise.

[0041] As a preference under this embodiment, as Figure 2 、 Figure 3 shown, the brushless motor further includes a rotating shaft 9 that is drivingly connected to the rotor 6. A lower bearing 7 is provided at the bottom end of the rotating shaft 9, and the support base 21 is provided with a limiting rib 212 that extends upward and surrounds the outside of the lower bearing 7.

[0042] By providing a limiting rib 212 that extends upward and surrounds the outside of the lower bearing 7 on the support base 21, radial limitation of the lower bearing 7 is realized, improving the position reliability of the lower bearing 7, and further ensuring the stability when the brushless motor rotates.

[0043] As a preferred embodiment of the present application, as Figure 4 、 Figure 5 shown, the cup housing 2 is further provided with an installation post 24 that extends upward. The cup base 11 is provided with an installation hole 111 that is vertically aligned with the installation post 24. The cup body assembly further includes a connecting member that passes through the installation post 24 and is fastened in the installation hole 111.

[0044] By providing an installation post 24 that extends upward on the cup housing 2, and the cup base 11 is provided with an installation hole 111 that is vertically aligned with the installation post 24, when assembling the stator 5, the rotor 6, and the cup base 11, only by passing the first connecting member through the installation hole 111 and fastening it in the installation hole 111 can the installation be realized. The assembly steps are simple, which helps to further improve the assembly efficiency. At the same time, by connecting and fixing the three with one connecting member, the coaxiality of the whole machine can be ensured, and further the stability of the rotation of the brushless motor can be improved, and the stability of the operation of the whole machine can be enhanced.

[0045] Further, the installation post 24 is provided outside the stator 5, and the stator 5 abuts against the installation post 24.

[0046] By providing the installation post 24 outside the stator 5, and the stator 5 abuts against the installation post 24, the installation post 24 can realize the connection between the cup base 11 and the cup housing 2, and at the same time can also realize the radial limitation of the stator 5, improving the functionality of the installation post 24. At the same time, the limiting effect of the cup housing 2 on the stator 5 is improved, ensuring the stability of the position of the stator 5, and further enhancing the stability of the rotation of the brushless motor.

[0047] As a preferred embodiment of the present application, Figure 2 , Figure 4 As shown, the cup body shell 2 is formed with a receiving cavity for receiving the rotor 6 and the stator 5, and the cavity wall of the receiving cavity is provided with a ventilation hole 23 connecting the receiving cavity with the outside.

[0048] By providing a ventilation hole 23 connecting the accommodating cavity with the outside world on the cavity wall, the outside air can enter the accommodating cavity through the ventilation hole 23, and dissipate heat to the stator 5 and the rotor 6 in the accommodating cavity, thereby reducing the temperature rise of the brushless motor, avoiding the situation where the brushless motor is seriously aged due to its high temperature, and helping to increase the service life of the brushless motor.

[0049] It should be noted that the present application does not specifically limit the location of the ventilation hole 23. As a preferred embodiment of the present application, Figure 2 As shown, the brushless motor also includes a rotating shaft 9 drivingly connected to the rotor 6, a cooling fan 10 is provided at the bottom end of the rotating shaft 9, a ventilation hole 23 is provided below the cooling fan 10, and the vertical projection of the cooling fan 10 at least partially falls into the ventilation hole 23.

[0050] By providing a cooling fan 10 at the bottom of the rotating shaft 9, the air in the accommodating chamber can flow more quickly under the drive of the cooling fan 10, which helps to increase the air flow rate flowing into the accommodating chamber through the ventilation holes 23 per unit time, thereby further improving the heat dissipation effect on the stator 5 and the rotor 6 and reducing their temperature rise. At the same time, the ventilation holes 23 are provided below the cooling fan 10, and the vertical projection of the cooling fan 10 at least partially falls into the ventilation holes 23, so that the cooling fan 10 can directly guide the air at the ventilation holes 23, which helps to further improve the air flow efficiency and further improve the heat dissipation effect. In addition, the ventilation holes 23 can be air inlets or air outlets, which are not specifically limited here.

[0051] As a preferred embodiment of the present application, Figure 2 As shown, the brushless motor further comprises a rotating shaft 9 drivingly connected to the rotor 6 , an upper bearing 8 is disposed at the top of the rotating shaft 9 , and the heating plate 4 is provided with a mounting groove for accommodating the upper bearing 8 .

[0052] By providing an upper bearing 8 at the top of the rotating shaft 9, radial limiting of the top of the rotating shaft 9 is achieved, which helps to further improve the coaxiality of the rotating shaft 9 and the rotor 6, and avoids the situation where the rotating shaft 9 has a large deflection or even stuck when rotating at high speed due to low coaxiality, thereby improving the stability of food processing. At the same time, the heating plate 4 is provided with a mounting groove for accommodating the upper bearing 8, so as to achieve limiting fixation of the upper bearing 8, and at the same time, it is omitted to provide another structural component to achieve limiting of the upper bearing 8, which helps to further reduce the number of parts of the whole machine, improve the position reliability of the upper bearing 8, and thus ensure the stability of the brushless motor when rotating.

[0053] It should be noted that the present application does not specifically limit the formation of the installation groove. As a preferred embodiment of the present application, for example, Figure 2 as shown, the heating plate 4 is provided with a downwardly extending rib, and the rib forms the side wall of the installation groove. Of course, the installation groove is not limited to the above setting, and it can also be that the middle part of the heating plate 4 protrudes upward to form the installation groove, which will not be elaborated here.

[0054] The technical solution protected by the present utility model is not limited to the above embodiments. It should be noted that the combination of the technical solution of any one embodiment with the technical solutions of one or more other embodiments is within the protection scope of the present utility model. Although the present utility model has been described in detail with general descriptions and specific embodiments above, on the basis of the present utility model, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present utility model all belong to the scope of protection required by the present utility model.

Claims

1. A structurally compact food processor, comprising a cup body assembly. The cup body assembly includes a cup body with upper and lower openings, a heating plate provided at the lower opening of the cup body, and a cup base provided below the heating plate and connected to the cup body. The heating plate is provided with a stirring blade, and is characterized in that, The food processor also includes a brushless motor disposed under the heating plate and driving the stirring blade to rotate. The cup body assembly also includes a cup body shell covering the outside of the brushless motor. The brushless motor includes a stator and a rotor. The cup body shell is fixedly connected to the cup base to fix the stator and the rotor.

2. The compact food processor according to claim 1, wherein, The cup body shell includes a support base supported below the stator and the rotor and a surrounding plate extending upward from the support base, and the surrounding plate is fixedly connected to the cup body or the cup base.

3. A compact food processor according to claim 2, characterized in that, The support seat is provided with a support plate extending upward, and the top end of the support plate is supported below the stator.

4. A compact food processor according to claim 2, wherein, The brushless motor also includes a rotating shaft drivingly connected to the rotor, a lower bearing is provided at the bottom end of the rotating shaft, and the support seat is provided with a limiting rib extending upward and surrounding the outer side of the lower bearing.

5. A compact food processor according to claim 1, characterized in that, The cup body shell is also provided with a mounting column extending upward, the cup base is provided with a mounting hole vertically aligned with the mounting column, and the cup body assembly also includes a connecting piece, which passes through the mounting column and is fastened to the mounting hole.

6. A compact food processor according to claim 5, characterized in that The mounting post is arranged on the outer side of the stator, and the stator abuts against the mounting post.

7. A compact food processor according to claim 1, characterized in that, The cup body shell forms an accommodating cavity for accommodating the rotor and the stator, and the cavity wall of the accommodating cavity is provided with a ventilation hole connecting the accommodating cavity with the outside.

8. A compact food processor according to claim 7, wherein, The brushless motor also includes a rotating shaft drivingly connected to the rotor, a cooling fan is provided at the bottom end of the rotating shaft, the ventilation hole is provided below the cooling fan, and the vertical projection of the cooling fan at least partially falls into the ventilation hole.

9. A compact food processor according to claim 1, wherein, The brushless motor also includes a rotating shaft drivingly connected to the rotor, an upper bearing is provided at the top end of the rotating shaft, and the heating plate is provided with a mounting groove for accommodating the upper bearing.

10. A compact food processor according to claim 9, characterized in that, The heating plate is provided with ribs extending downwards, and the ribs form side walls of the mounting groove.

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