Food processor

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a food processor which comprises a main machine and a cup assembly installed on the main machine. The cup assembly comprises a cup body with a built-in smashing cutter, a cup base fixed to the bottom of the cup body, a frequency conversion brushless motor fixed in the cup base to drive the smashing cutter and an upper coupler electrically connected with the frequency conversion brushless motor, and the main machine is provided with a control panel and a lower coupler electrically connected with the control panel. The upper coupler and the lower coupler are matched in an inserted mode, the upper coupler and the frequency conversion brushless motor are transversely arranged in a staggered mode, the frequency conversion brushless motor comprises a body, a rotating shaft extending out of the body and a lower end cover supporting the body, and the top end of the upper coupler is higher than the bottom face of the lower end cover. And the upper coupler and the rotating shaft are highly overlapped along the vertical direction. The height of the cup base is effectively reduced, downward movement of the working gravity center of the whole machine is achieved, and stable working of the whole machine is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and particularly relates to a food processing machine. Background Art

[0002] Traditional food processors are often driven by series-wound motors due to product pricing restrictions and simple drive requirements. However, series-wound motors are large in size, requiring a larger space to accommodate the motor in the food processor design. In addition, for food processors with detachable cups, considering the ease with which users can take the cup, the series-wound motor is generally fixedly installed in the main unit, and the motor and the mixing blade in the cup are connected via a coupling. However, this structure results in a higher main unit, making it inconvenient for users to install the cup. In addition, the working center of gravity of the entire machine is high, resulting in poor working stability and generating working noise.

[0003] With the continuous development and innovation of food processing machine technology, the applicant has previously developed a food processing machine using a variable frequency brushless motor, including a main unit and a cup assembly. The cup assembly includes a cup body, a cup holder, and a variable frequency brushless motor installed in the cup holder. A control device is provided in the main unit, and the control device and the variable frequency brushless motor are connected via a coupler. The present application realizes the miniaturization of the motor by adopting a variable frequency brushless motor drive. At the same time, the motor is arranged in the cup holder of the cup assembly to make the main unit lower. However, the coupler in the prior art generally adopts a well-developed universal coupler, which is limited by the large size of the coupler and the limited installation space of the cup holder. Figure 1 As shown, the variable frequency brushless motor is generally set at a position higher than the upper coupler to achieve avoidance between the two. This results in a larger height of the cup seat, a larger overall height of the cup assembly, a high working center of gravity of the whole machine, and poor working stability. Moreover, the ratio of the cup seat height to the pulping height of the cup body is not coordinated, the actual pulping volume of the cup body is small, and the space utilization rate is low. Utility Model Content

[0004] The utility model provides a food processing machine which is driven by a variable frequency brushless motor and optimizes the position arrangement of an upper coupler and a motor, so as to solve the problem in the prior art that the working center of gravity of the whole machine is high and the working is unstable.

[0005] The technical solution adopted by this utility model is:

[0006] The utility model provides a food processing machine, comprising a main machine and a cup assembly mounted on the main machine, the cup assembly comprising a cup body with a built-in crushing knife, a cup seat fixed to the bottom of the cup body, a variable frequency brushless motor fixed in the cup seat to drive the crushing knife, and an upper coupler electrically connected to the variable frequency brushless motor, the main machine is provided with a control panel and a lower coupler electrically connected to the control panel, the upper coupler is plugged into and matched with the lower coupler, the upper coupler and the variable frequency brushless motor are laterally staggered, the variable frequency brushless motor comprises a main body, a rotating shaft extending from the main body, and a lower end cover supporting the main body, the top of the upper coupler is higher than the bottom surface of the lower end cover, and the upper coupler and the rotating shaft have a high degree of overlap in the vertical direction.

[0007] The food processing machine provided by the present invention adopts a variable frequency brushless motor, which is compact and saves installation space compared to a traditional series-excited motor. The upper coupler and the variable frequency brushless motor are laterally staggered, and the variable frequency brushless motor includes a main body, a rotating shaft extending from the main body, and a lower end cover supporting the main body. The top of the upper coupler is higher than the bottom surface of the lower end cover, and the upper coupler and the rotating shaft have a vertical height overlap. Therefore, the vertical height overlap of the upper coupler and the variable frequency brushless motor is avoided. The upper coupler utilizes the height space of the variable frequency brushless motor, effectively reduces the height of the cup seat, thereby reducing the height of the overall cup assembly, realizing the downward shift of the working center of gravity of the whole machine, which is beneficial to the stable operation of the whole machine, thereby reducing the collision noise such as the deflection of the cup assembly during operation. Since the top of the upper coupler is higher than the bottom surface of the lower end cover, and the upper coupler and the rotating shaft have a vertical overlap, the upper coupler makes more full use of the height space of the variable frequency brushless motor, so that the height of the cup seat can be close to the height of the variable frequency brushless motor, which greatly reduces the height of the cup seat. Without increasing the overall height of the cup assembly, the pulping height of the cup body can be expanded by lowering the height of the cup seat. The height ratio of the cup body and the cup seat is more coordinated and reasonable, the pulping volume of the cup body is expanded, and the space utilization rate is greatly improved.

[0008] In a preferred embodiment, the side wall of the lower end cover and the side wall of the cup base enclose an annular cavity, the bottom wall of the cup base is provided with a mounting hole, and the upper coupler is sealed and fixed in the mounting hole and extends into the annular cavity.

[0009] By enclosing an annular cavity between the side walls of the lower end cover and the side walls of the cup holder to form an annular cavity, the noise generated by the variable frequency brushless motor can be buffered and eliminated in the annular cavity before being transmitted out, thereby reducing the working noise of the entire machine. A mounting hole is provided on the bottom wall of the cup holder, and the upper coupler is sealed and fixed in the mounting hole and extends into the annular cavity. On the one hand, the upper coupler is installed using the annular cavity, which not only reasonably utilizes the vertical space of the cup holder and reduces the height of the cup holder, but also reasonably utilizes the radial space of the cup holder to avoid the radial size of the cup holder from becoming larger. On the other hand, the height of the cup holder is reduced, the volume of the annular cavity is reduced, and the upper coupler extends into the annular cavity. The noise of the variable frequency brushless motor is refracted and offset in the reduced annular cavity, and refracted and consumed after encountering the upper coupler, thereby achieving a good noise reduction effect.

[0010] In a preferred embodiment, the upper coupler comprises a plurality of sub-couplers arranged circumferentially around the variable frequency brushless motor;

[0011] By setting the upper coupler as a plurality of sub-couplers arranged circumferentially around the variable frequency brushless motor, the annular space between the variable frequency brushless motor and the side wall of the cup holder can be more effectively utilized. According to the size of the annular space, the plurality of sub-couplers can be compactly arranged without increasing the outer diameter of the cup holder, thereby reducing unnecessary gaps and space waste, achieving full utilization of the cup holder space, and further reducing the radial size of the cup holder. In addition, the use of a plurality of sub-couplers arranged circumferentially around the variable frequency brushless motor can form a more uniform support and connection between the cup assembly and the main unit, further enhancing the stability of the whole machine operation and reducing the working noise.

[0012] In a preferred embodiment, the upper coupler extends in an arc shape along the circumference of the variable frequency brushless motor.

[0013] Since the cup holder, motor, and cup body are generally circular structures, the side wall of the lower end cover and the side wall of the cup holder enclose an annular cavity. Therefore, extending the upper coupler into an arc along the circumference of the variable frequency brushless motor can more fully and reasonably utilize the space formed between the variable frequency brushless motor and the cup holder. On the basis of reducing the height of the cup holder, the outer diameter of the cup holder is reduced, making the overall size of the cup assembly compact and convenient for users to pick up.

[0014] In a preferred embodiment, the lower end cover is disposed close to the bottom wall of the cup holder, the distance between the lower end cover and the bottom wall of the cup holder is H1, and the height of the upper coupler is H2, satisfying 0≤H1≤H2.

[0015] By arranging the lower end cover close to the bottom wall of the cup holder and satisfying 0≤H1≤H2, the distance between the lower end cover and the bottom wall of the cup holder is reduced, thereby reducing the waste of vertical space. Under the premise of surrounding the variable frequency brushless motor, the height of the cup holder is further compressed and can be close to the overall height of the variable frequency brushless motor, thereby greatly reducing the height of the cup holder, realizing the downward shift of the working center of gravity of the whole machine, improving working stability and reducing working noise.

[0016] In a preferred embodiment, the lower end cover is integrally connected to the bottom wall of the cup base;

[0017] In a preferred embodiment, a fitting gap is formed between the lower end cover and the bottom wall of the cup holder, and the upper coupler laterally blocks the fitting gap.

[0018] By connecting the lower end cover and the bottom wall of the cup holder as one, the structure of the cup assembly is further simplified, the assembly process is simplified, and the assembly efficiency is improved; by forming a matching gap between the lower end cover and the bottom wall of the cup holder, the upper coupler laterally blocks the matching gap, and the upper coupler and the naturally generated matching gap and the rotating shaft of the motor are highly overlapped, so that the vertical space of the cup holder is reasonably utilized.

[0019] In a preferred embodiment, the side wall of the cup holder is provided with a protrusion protruding outward, the upper coupler is fixed in the protrusion, and the cup assembly further comprises a handle fixed on the side of the cup body, and the protrusion is located below the handle.

[0020] By providing a protrusion on the side wall of the cup holder and the protrusion being located below the handle, the upper coupler can be reasonably arranged without increasing the overall radial dimension of the cup assembly, thereby reducing the height of the cup assembly and reducing the radial dimension at the same time, making the cup assembly compact and convenient for users to pick up.

[0021] In a preferred embodiment, the food processor further comprises a heating tube fixed to the bottom wall of the cup body, the heating tube surrounds the outer circumference of the variable frequency brushless motor, and the upper coupler and the heating tube are arranged transversely staggered.

[0022] By arranging the upper coupler and the heating tube in a transversely staggered manner, the heat radiated directly downward by the heating tube is prevented from being transferred to the upper coupler, thereby reducing the radiant heat received by the upper coupler, protecting the upper coupler, and extending the service life of the upper coupler.

[0023] In a preferred embodiment, the body includes a stator and a rotor that cooperate with each other, the rotating shaft extends from the rotor, and the upper coupler has a high overlap with the stator or the rotor in the vertical direction;

[0024] Alternatively, the variable frequency brushless motor further comprises a fan driven by the rotating shaft, the fan being located between the body and the lower end cover, and the upper coupler and the fan having a vertical overlap;

[0025] Alternatively, the variable frequency brushless motor further comprises a fan driven by the rotating shaft, the fan is located below the lower end cover, the rotating shaft passes through the lower end cover and is connected to the fan, and the upper coupler and the fan have a vertical overlap.

[0026] By overlapping the upper coupler with the stator or the rotor in the vertical direction, or by overlapping the upper coupler with the fan regardless of whether the fan is arranged inside or outside the lower end cover, the height of the cup seat can be further compressed, so that the overall height of the cup assembly is reduced, the working center of gravity is lowered, the working stability is improved, and the working noise caused by the deflection of the cup assembly is reduced.

[0027] In a preferred embodiment, the height of the cup base is H3, the average outer diameter of the cup base is R1, and 1 / 4≤H3 / R1≤3 / 5 is satisfied;

[0028] By setting the cup holder height and average outer diameter to meet the requirement of 1 / 4 ≤ H3 / R1 ≤ 3 / 5, we can avoid the problem of the cup holder being too high or too small in outer diameter, which would cause the cup assembly to be slender and unstable. We also avoid the problem of the cup holder being too low or too large in outer diameter, which would result in a large outer diameter of the entire cup assembly, requiring the user to hold it with both hands and making it inconvenient to pick up the cup. Therefore, meeting the requirement of 1 / 4 ≤ H3 / R1 ≤ 3 / 5 ensures a reasonable cup holder proportion, improves the product appearance, and makes it easier to pick up the cup.

[0029] In a preferred embodiment, the height of the cup base is H3, and the pulping height of the cup body is H4, satisfying 1 / 5≤H3 / H4≤1 / 2.

[0030] By satisfying 1 / 5≤H3 / H4≤1 / 2, under the premise of determining the height of the cup assembly, we can avoid situations where the cup seat height is too large, resulting in a too small pulping height of the cup body and a small pulping capacity, as well as situations where the cup seat height is too small and the cup body height is too large, resulting in a top-heavy and unstable cup assembly. This ensures that the cup seat height and the pulping height of the cup body are set within a reasonable range and the proportions of the cup assembly are coordinated.

[0031] In a preferred embodiment, the food processor further comprises a driving module for driving the variable frequency brushless motor, wherein the driving module is disposed in the host and electrically connected to the lower coupler;

[0032] Alternatively, the food processor further comprises a driving module for driving the variable frequency brushless motor, and the driving module is disposed in the cup holder and electrically connected to the variable frequency brushless motor.

[0033] By setting up a drive module, the drive module is arranged in the host independently relative to the control board, which is conducive to the rational use of the host space and avoids the expansion of the host size; by setting the drive module in the cup holder, the connection between the drive module and the variable frequency brushless motor is reliable, and the structural reliability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0035] Figure 1 It is a structural schematic diagram of a cup assembly of a food processor in the background technology of the present utility model;

[0036] Figure 2 This is a structural diagram of a food processing machine in Example 1 of the present utility model;

[0037] Figure 3 This is a partial cross-sectional schematic diagram of the food processing machine in Example 1 of the present utility model;

[0038] Figure 4 This is a schematic diagram of the exploded structure of the cup assembly in Example 1 of the present utility model;

[0039] Figure 5 This is a schematic diagram of the inverted structure of the cup assembly in Example 1 of the present utility model;

[0040] Figure 6 This is a schematic cross-sectional view of the cup assembly in Example 1 of the present invention;

[0041] Figure 7 This is a schematic diagram of the inverted structure of the cup assembly in Example 2 of the present utility model;

[0042] Figure 8 This is a partial cross-sectional schematic diagram of the food processing machine in Example 3 of the present invention.

[0043] Explanation of the accompanying drawings: 10. Main unit; 20. Cup assembly; 21. Cup body; 22. Crushing knife; 23. Cup seat; 231. Annular cavity; 232. Mounting hole; 24. Variable frequency brushless motor; 241. Stator; 242. Rotor; 243. Rotating shaft; 244. Fan; 245. Lower end cover; 25. Upper coupler; 251. Sub-coupler; 26. Handle; 27. Cup cover; 28. Heating tube. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0045] The following description sets forth many specific details to facilitate a thorough understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present invention is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present invention and the features of each embodiment may be combined with each other unless there is a conflict.

[0046] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0049] like Figure 2-6As shown, the present invention provides a food processing machine in one embodiment, including a main unit 10 and a cup assembly 20 mounted on the main unit 10, the cup assembly 20 including a cup body 21 with a built-in crushing blade 22, a cup holder 23 fixed to the bottom of the cup body 21, a variable frequency brushless motor 24 fixed in the cup holder 23 to drive the crushing blade 22, and an upper coupler 25 electrically connected to the variable frequency brushless motor 24, the upper end of the cup body 21 is open and provided with a cup cover 27, and a handle 26 is provided on the side of the cup body, the main unit 10 is provided with a control panel and a lower coupler (not shown) electrically connected to the control panel, and the upper coupler 25 is plugged into the lower coupler, as shown in FIG. Figure 3 As shown, the upper coupler 25 and the variable frequency brushless motor 24 are arranged laterally staggered, that is, the projections of the upper coupler and the variable frequency brushless motor on the horizontal plane do not overlap. The variable frequency brushless motor 24 includes a body, a rotating shaft 243 extending from the body, and a lower end cover 245 supporting the body. Figure 3 As shown, the top of the upper coupler 25 is higher than the bottom surface of the lower end cover 245, and the upper coupler 25 and the rotating shaft 243 have a high overlap in the vertical direction, that is, the projections of the upper coupler 25 and the rotating shaft 243 on the vertical plane overlap.

[0050] The food processing machine provided by the present invention adopts a variable frequency brushless motor 24, which is compact and saves installation space compared to a traditional series-excited motor. The upper coupler 25 and the variable frequency brushless motor 24 are laterally staggered, and the variable frequency brushless motor 24 includes a main body, a rotating shaft 243 extending from the main body, and a lower end cover supporting the main body. The top of the upper coupler 25 is higher than the bottom surface of the lower end cover, and the upper coupler 25 and the rotating shaft 243 have a vertical height overlap. Therefore, the vertical height overlap of the upper coupler 25 and the variable frequency brushless motor 24 is avoided. The upper coupler 25 utilizes the height space of the variable frequency brushless motor 24 to effectively reduce the height of the cup holder 23, thereby reducing the height of the entire cup assembly 20, realizing the downward shift of the working center of gravity of the entire machine, which is beneficial to the stable operation of the entire machine, thereby reducing the collision noise such as the deflection of the cup assembly 20 during operation. Since the top of the upper coupler 25 is higher than the bottom surface of the lower end cover, and the upper coupler 25 and the rotating shaft 243 have a vertical overlap, the upper coupler 25 makes more full use of the height space of the variable frequency brushless motor 24, so that the height of the cup seat 23 can be close to the height of the variable frequency brushless motor 24, which greatly reduces the height of the cup seat 23. Without increasing the overall height of the cup assembly 20, the pulping height of the cup body 21 can be expanded by lowering the height of the cup seat 23. The height ratio of the cup body 21 and the cup seat 23 is more coordinated and reasonable, the pulping volume of the cup body 21 is expanded, and the space utilization rate is greatly improved.

[0051] The present invention does not limit the specific structure and installation position of the upper coupler 25. For example:

[0052] Implementation Example 1, such as Figure 2-6As shown, the side wall of the lower end cover 245 and the side wall of the cup base 23 enclose an annular cavity 231, as shown in FIG. Figure 3 As shown, a mounting hole 232 is provided on the bottom wall of the cup holder 23 , and the upper coupler 25 is sealed and fixed in the mounting hole 232 and extends into the annular cavity 231 .

[0053] By enclosing an annular cavity between the side walls of the lower end cover and the side walls of the cup holder 23, the noise generated by the variable frequency brushless motor 24 can be buffered and eliminated in the annular cavity before being transmitted out, thereby reducing the working noise of the entire machine. A mounting hole is provided on the bottom wall of the cup holder 23, and the upper coupler 25 is sealed and fixed in the mounting hole and extends into the annular cavity. On the one hand, the upper coupler 25 is installed using the annular cavity, which not only reasonably utilizes the vertical space of the cup holder 23 and reduces the height of the cup holder 23, but also reasonably utilizes the radial space of the cup holder 23 to avoid the radial size of the cup holder 23 from becoming larger. On the other hand, the height of the cup holder 23 is reduced, the volume of the annular cavity is reduced, and the upper coupler 25 extends into the annular cavity. The noise of the variable frequency brushless motor 24 is refracted and offset in the reduced annular cavity, and refracted and consumed after encountering the upper coupler 25, thereby achieving a good noise reduction effect.

[0054] More preferably, if Figure 4 、 Figure 5 As shown, in this embodiment, the upper coupler 25 extends in an arc shape along the circumference of the variable frequency brushless motor 24 .

[0055] Since the cup holder 23, the motor, and the cup body 21 are generally circular structures, the side wall of the lower end cover and the side wall of the cup holder 23 enclose an annular cavity. Therefore, the upper coupler 25 is extended into an arc along the circumference of the variable frequency brushless motor 24. The space formed between the variable frequency brushless motor 24 and the cup holder 23 can be more fully and reasonably utilized. On the basis of lowering the height of the cup holder 23, the outer diameter of the cup holder 23 is reduced, so that the overall size of the cup assembly 20 is compact, which is convenient for users to take.

[0056] Of course, it should be noted that the arc-shaped upper coupler 25 is still applicable to other implementation examples.

[0057] In addition, preferably, in this embodiment, the food processor also includes a heating tube 28 fixed to the bottom wall of the cup body 21, the heating tube 28 surrounds the outer periphery of the variable frequency brushless motor 24, and the upper coupler 25 and the heating tube 28 are arranged laterally staggered, that is, the projections of the upper coupler 25 and the heating tube 28 in the horizontal plane do not overlap.

[0058] By arranging the upper coupler 25 and the heating tube in a transversely staggered manner, the heat radiated downward directly from the heating tube is prevented from being transferred to the upper coupler 25 , thereby reducing the radiant heat received by the upper coupler 25 , protecting the upper coupler 25 , and extending the service life of the upper coupler 25 .

[0059] Preferably, in this embodiment, Figure 3 As shown, the body of the variable frequency brushless motor 24 includes a stator 241 and a rotor 242 that cooperate with each other, a rotating shaft 243 extends from the rotor 242, and the upper coupler 25 has a high degree of overlap with the stator 241 and the rotor 242 in the vertical direction;

[0060] More preferably, if Figure 3 As shown, the variable frequency brushless motor 24 further includes a fan 244 driven by a rotating shaft 243 . The fan 244 is located between the body (stator 241 and rotor 242 ) and the lower end cover 245 . The upper coupler 25 and the fan 244 overlap vertically.

[0061] Of course, the present invention does not limit the setting position of the fan 244. For example, in another preferred embodiment, the fan 244 is located below the lower end cover, the rotating shaft 243 passes through the lower end cover and is connected to the fan 244, and the upper coupler 25 and the fan 244 have a high degree of overlap in the vertical direction.

[0062] In addition, in other preferred embodiments, the upper coupler 25 may only have a high overlap with the stator, or the upper coupler may only have a high overlap with the rotor.

[0063] By vertically overlapping the upper coupler 25 with the stator 241 or the rotor 242, or overlapping the upper coupler 25 with the fan 244 regardless of whether the fan 244 is arranged inside or outside the lower end cover, the height of the cup holder 23 can be further compressed, so that the overall height of the cup assembly 20 is reduced, the working center of gravity is lowered, the working stability is improved, and the working noise caused by the deflection of the cup assembly 20 is reduced.

[0064] Implementation Example 2, such as Figure 7 As shown, the difference between this embodiment and embodiment 1 lies in the structure of the upper coupler 25 . In this embodiment, the upper coupler 25 includes a plurality of sub-couplers 251 circumferentially arranged around the variable frequency brushless motor 24 .

[0065] Optionally, the single sub-coupler 251 extends in an arc shape along the circumference of the variable frequency brushless motor 24 .

[0066] By setting the upper coupler 25 as a plurality of sub-couplers 251 arranged circumferentially around the variable frequency brushless motor 24, the annular space between the variable frequency brushless motor 24 and the side wall of the cup holder 23 can be more effectively utilized. According to the size of the annular space, without increasing the outer diameter of the cup holder 23, the plurality of sub-couplers 251 are compactly arranged, thereby reducing unnecessary gaps and space waste, achieving full utilization of the space of the cup holder 23, and further reducing the radial size of the cup holder 23; in addition, by using a plurality of sub-couplers 251 arranged circumferentially around the variable frequency brushless motor 24, a more uniform support and connection can be formed between the cup assembly 20 and the main unit 10, further enhancing the stability of the whole machine operation and reducing the working noise.

[0067] Implementation Example 3, such as Figure 8 As shown, this embodiment differs from embodiment 1 in the setting position of the upper coupler 25. In this embodiment, the side wall of the cup holder 23 is provided with a protrusion 29 protruding outward, and the upper coupler 25 is fixed in the protrusion 29. The cup assembly 20 also includes a handle 26 fixed to the side of the cup body 21, and the protrusion 29 is located below the handle 26.

[0068] By providing a protrusion on the side wall of the cup holder 23 and the protrusion being located below the handle, the upper coupler 25 can be reasonably arranged without increasing the overall radial dimension of the cup assembly 20, thereby reducing the height of the cup assembly 20 and reducing the radial dimension at the same time, making the cup assembly 20 compact and convenient for users to pick up.

[0069] In a preferred embodiment, referring to Example 1, the lower end cover is disposed close to the bottom wall of the cup holder 23, such as Figure 6 As shown, the distance between the lower end cover 245 and the bottom wall of the cup holder 23 is H1, and the height of the upper coupler 25 is H2, satisfying 0≤H1≤H2.

[0070] By setting the lower end cover close to the bottom wall of the cup holder 23 and satisfying 0≤H1≤H2, the distance between the lower end cover and the bottom wall of the cup holder 23 is reduced, reducing the waste of vertical space. Under the premise of surrounding the variable frequency brushless motor 24, the height of the cup holder 23 is further compressed and can be close to the overall height of the variable frequency brushless motor 24, greatly reducing the height of the cup holder 23, realizing the downward shift of the working center of gravity of the whole machine, improving working stability and reducing working noise.

[0071] In a preferred embodiment, Figure 6 As shown, a fitting gap is formed between the lower end cover and the bottom wall of the cup holder 23 , that is, the distance H1 between the lower end cover 245 and the bottom wall of the cup holder 23 is greater than 0, and the upper coupler 25 laterally blocks the fitting gap.

[0072] Of course, the present invention is not limited thereto. In other embodiments of the present invention, the lower end cover is integrally connected to the bottom wall of the cup holder 23 , that is, the distance H1 between the lower end cover 245 and the bottom wall of the cup holder 23 is 0.

[0073] By forming a gap between the lower end cap and the bottom wall of the cup holder 23, the upper coupler 25 laterally blocks the gap. The upper coupler 25 highly overlaps the naturally occurring gap and the motor shaft 243, effectively utilizing the vertical space of the cup holder 23. By integrally connecting the lower end cap and the bottom wall of the cup holder 23, the structure of the cup assembly 20 is further simplified, the assembly process is streamlined, and assembly efficiency is improved.

[0074] In a preferred embodiment, Figure 6 As shown, the height of the cup holder 23 is H3, and the average outer diameter of the cup holder 23 is R1, which satisfies 1 / 4≤H3 / R1≤3 / 5;

[0075] By setting the height and average outer diameter of the cup holder 23 to satisfy 1 / 4 ≤ H3 / R1 ≤ 3 / 5, we can avoid the problem of the cup holder 23 being too high or too small in outer diameter, which would cause the cup assembly 20 to be thin and unstable. We also avoid the problem of the cup holder 23 being too low or too large in outer diameter, which would result in a large outer diameter of the cup assembly 20, requiring the user to hold it with both hands and making it inconvenient to hold. Therefore, satisfying 1 / 4 ≤ H3 / R1 ≤ 3 / 5 ensures that the proportions of the cup holder 23 are reasonable, improving the product appearance and making it easier to hold.

[0076] In a preferred embodiment, Figure 6 As shown, the height of the cup base 23 is H3, and the pulping height of the cup body 21 is H4, which satisfies 1 / 5≤H3 / H4≤1 / 2. It should be noted that the pulping height of the cup body 21 is the distance from the inner bottom wall of the cup body to the top of the cup body.

[0077] For example, in implementation example 1, the height H2 of the upper coupler is 25 mm. The height of the cup base of the food processor provided by the present invention is reduced by about 25 mm compared to that of a traditional food processor.

[0078] Preferably, the height of the cup seat 23 is H3 = 55 mm, and the pulping height of the cup body 21 is H4 = 150 mm.

[0079] By satisfying the condition 1 / 5≤H3 / H4≤1 / 2, under the premise of determining the height of the cup assembly 20, it is possible to avoid the situation where the cup base 23 is too high, resulting in a too small pulping height of the cup body 21 and a small pulping capacity, and to avoid the situation where the cup base 23 is too low and the cup body 21 is too high, resulting in a top-heavy and unstable placement of the cup assembly 20. The height of the cup base 23 and the pulping height of the cup body 21 are set within a reasonable range, and the proportions of the cup assembly 20 are coordinated.

[0080] In a preferred embodiment, the food processor further comprises a drive module for driving the variable frequency brushless motor 24 , the drive module being disposed in the main unit 10 and electrically connected to the lower coupler;

[0081] Of course, the present invention is not limited to the drive module being disposed in the host 10 . In another preferred embodiment, the drive module is disposed in the cup holder 23 and electrically connected to the variable frequency brushless motor 24 .

[0082] By setting up a drive module, the drive module is set in the host 10 and arranged independently relative to the control board, which is conducive to the rational use of the space of the host 10 and avoids the expansion of the size of the host 10; by setting the drive module in the cup holder 23, the connection between the drive module and the variable frequency brushless motor 24 is reliable, and the structural reliability is improved.

[0083] Anything not described in this utility model can be achieved by adopting or drawing on existing technologies.

[0084] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0085] The above are merely examples of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims of the present invention.

Claims

1. A food processing machine, comprising a main unit and a cup assembly mounted on the main unit, the cup assembly comprising a cup body with a built-in crushing blade, a cup holder fixed to the bottom of the cup body, a variable frequency brushless motor fixed in the cup holder to drive the crushing blade, and an upper coupler electrically connected to the variable frequency brushless motor, the main unit being provided with a control panel and a lower coupler electrically connected to the control panel, the upper coupler being pluggable with the lower coupler, and characterized in that: The upper coupler is laterally staggered with the variable frequency brushless motor. The variable frequency brushless motor includes a body, a rotating shaft extending from the body, and a lower end cover supporting the body. The top of the upper coupler is higher than the bottom surface of the lower end cover, and the upper coupler and the rotating shaft have a high overlap in the vertical direction.

2. A food processing machine according to claim 1, characterized in that: The side wall of the lower end cover and the side wall of the cup seat enclose an annular cavity. The bottom wall of the cup seat is provided with a mounting hole. The upper coupler is sealed and fixed in the mounting hole and extends into the annular cavity.

3. A food processing machine according to claim 1 or 2, characterized in that: The upper coupler includes a plurality of sub-couplers arranged circumferentially around the variable frequency brushless motor; Alternatively, the upper coupler extends in an arc shape along the circumference of the variable frequency brushless motor.

4. A food processing machine according to claim 1, characterized in that: The lower end cover is arranged close to the bottom wall of the cup holder, the distance between the lower end cover and the bottom wall of the cup holder is H1, the height of the upper coupler is H2, and 0≤H1≤H2 is satisfied.

5. A food processing machine according to claim 1, characterized in that: The lower end cover is integrally connected to the bottom wall of the cup holder; Alternatively, a fitting gap is formed between the lower end cover and the bottom wall of the cup holder, and the upper coupler laterally blocks the fitting gap.

6. A food processing machine according to claim 1, characterized in that: The side wall of the cup seat is provided with a protruding portion protruding outward, and the upper coupler is fixed in the protruding portion. The cup assembly also includes a handle fixed on the side of the cup body, and the protruding portion is located below the handle.

7. A food processing machine according to claim 1, characterized in that: The food processor further comprises a heating tube fixed on the bottom wall of the cup body, the heating tube surrounds the outer periphery of the variable frequency brushless motor, and the upper coupler and the heating tube are arranged in a transverse staggered manner.

8. A food processing machine according to claim 1, characterized in that: The body includes a stator and a rotor that cooperate with each other, the rotating shaft extends from the rotor, and the upper coupler has a high overlap with the stator or the rotor in the vertical direction; Alternatively, the variable frequency brushless motor further comprises a fan driven by the rotating shaft, the fan being located between the body and the lower end cover, and the upper coupler and the fan having a vertical overlap; Alternatively, the variable frequency brushless motor further comprises a fan driven by the rotating shaft, the fan is located below the lower end cover, the rotating shaft passes through the lower end cover and is connected to the fan, and the upper coupler and the fan have a vertical overlap.

9. A food processing machine according to claim 1, characterized in that: The height of the cup base is H3, and the average outer diameter of the cup base is R1, satisfying 1 / 4≤H3 / R1≤3 / 5; Alternatively, the height of the cup base is H3, and the pulping height of the cup body is H4, satisfying 1 / 5≤H3 / H4≤1 / 2.

10. The food processing machine according to claim 1, characterized in that: The food processor further comprises a driving module for driving the variable frequency brushless motor, wherein the driving module is arranged in the host and electrically connected to the lower coupler; Alternatively, the food processor further comprises a driving module for driving the variable frequency brushless motor, and the driving module is disposed in the cup holder and electrically connected to the variable frequency brushless motor.

Images