Food processor with transmission stabilization

Abstract

The utility model discloses a kind of transmission stable food processing machines, including host computer, cup body, comminuting device includes blade and rotor, driving device can produce varying magnetic field and drive rotor rotation to drive blade rotation, host computer includes the shell of accommodating driving device, shell top wall is equipped with with driving device vertical alignment's through-hole, driving device includes stator core, coil winding wound on stator core and top plate covered on stator core, shorten the distance of driving device and rotor, and then promote the magnetic attraction of driving device and rotor, ensure that driving device can stably drive rotor rotation, when the magnetic eddy current caused by driving device when driving rotor produces cup body bottom wall temperature rise, the heat of cup body bottom wall can be downwardly conducted to top plate, and effective heat dissipation is realized through heat dissipation mechanism in shell, to reduce the temperature rise of rotor and driving device nearby, ensure the stability of whole machine operation.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a food processing machine with stable transmission. Background Technology

[0002] Existing food processors typically consist of a main unit and a detachable cup assembly located on top of the main unit. The main unit houses a motor, and the cup assembly contains a stirring element connected to the motor. When using the food processor, the user places ingredients into the cup, and the motor drives the stirring element to rotate at high speed, processing the ingredients. Current methods of connecting the motor and stirring element involve attaching a connector to the motor shaft and another connector to the bottom of the stirring element's blade shaft. After the cup assembly is in place, these connectors engage to transmit torque. However, this method requires a through-hole in the bottom wall of the cup for the upper connector to pass through, and a bearing and seal must be installed within this hole to ensure smooth rotation and a tight seal. This results in a complex structure and creates hard-to-clean areas at the bottom of the cup, making thorough cleaning difficult.

[0003] To address the aforementioned issues, Chinese patent CN202311213169.0 discloses a novel brushless motor. The outer casing functional component axially encloses the rotor assembly. When the motor stator is energized, it generates a magnetic field, driving the rotor assembly to rotate around the stator, thereby rotating the outer casing functional component. Furthermore, different external structures of the outer casing functional component can achieve corresponding effects. In other words, components such as pulverizing blades can be installed on the outer casing functional component to achieve food pulverization. Those skilled in the art would readily consider placing this type of brushless motor directly inside the cup to pulverize the food. However, this brushless motor occupies a large space inside the cup, significantly reducing the effective pulverizing space and resulting in a small capacity for single-batch food preparation. Additionally, the limited agitation space outside the brushless motor prevents effective pulverization of the food, severely impacting the user experience.

[0004] Another type of food processor, such as Chinese patent CN202211320481.5, features a driven magnet (a permanent magnet) at the bottom of the mixing element. Simultaneously, an electromagnetic drive device is installed within the main unit. This device generates a changing magnetic field when energized. After the cup is installed, the driven magnet and the electromagnetic drive device attract each other under the influence of the magnetic field, causing the driven magnet to rotate within the cup. This eliminates the need for drilling holes in the bottom wall of the cup, removing cleaning dead zones and allowing for thorough cleaning. However, the distance between the electromagnetic drive device and the driven magnet is very critical; they must be very close to achieve stable magnetic attraction. Due to the thickness of the top wall of the main unit and the bottom wall of the cup, the distance between them is increased, resulting in a decrease in magnetic attraction. Replacing the electromagnetic drive device with one that generates a larger magnetic field would significantly increase the weight and size of the entire machine, and also raise the cost. At the same time, when the electromagnetic drive device and the driven disk are magnetically attracted together, magnetic eddy currents will be formed between them. The bottom wall of the cup and the top wall of the main unit will heat up due to the magnetic eddy currents, resulting in local overheating. This will cause the electromagnetic drive device and the driven disk to heat up as well. After the temperature rises, the magnetic attraction between the electromagnetic drive device and the driven disk will decrease significantly, resulting in a significant reduction in torque transmission between them or even ineffective attraction. This will make it difficult to process food and seriously affect the user experience. Utility Model Content

[0005] The purpose of this utility model is to provide a food processing machine with stable transmission, in order to solve the problem of how to avoid the electromagnetic drive device and the driven magnet from being too far apart and the magnetic eddy current generated when they rotate, which would cause the temperature rise and magnetic attraction of the two to decrease, under the premise that the existing food processing machine uses an electromagnetic drive device and a driven magnet to realize the rotation of the crushing device in order to reduce the dead corner of cleaning.

[0006] To achieve the above objectives, this utility model provides a food processing machine with stable transmission, including a main unit and a detachable cup body located above the main unit and containing a crushing device. The crushing device includes blades and a rotor that is connected to the blades in transmission. The main unit is equipped with a driving device that can generate a changing magnetic field and drive the rotor to rotate, thereby driving the blades to rotate. The main unit includes a housing that accommodates the driving device. The top wall of the housing is provided with a through hole that is vertically aligned with the driving device. The driving device includes a stator core, a coil winding wound on the stator core, and a top plate covering the stator core. The top plate completely blocks the through hole.

[0007] This application transforms the pulverizing device into blades and a rotor connected to the blades. The food processor also includes a drive device that generates a changing magnetic field and drives the reluctance rotor to rotate, thus rotating the blades. When the user places the cup on the main unit, the drive device activates and generates a changing magnetic field. The rotor, influenced by the magnetic field, begins to rotate, driving the blades to process the food. Compared to existing methods that require upper and lower connectors for torque transmission, this eliminates the need for openings at the bottom of the cup, thereby eliminating the need for seals and bearings, simplifying the cup structure, reducing cleaning dead zones, and facilitating user cleaning. Furthermore, compared to directly mounting the brushless motor inside the cup, placing the pulverizing device only inside the cup significantly reduces its space occupation, ensuring sufficient pulverizing space for food processing, maximizing processing capacity and pulverizing effect. While maintaining pulverizing capacity and product texture, it also reduces cleaning dead zones, making cleaning easier for the user.

[0008] The drive unit includes a stator core, coil windings wound around the stator core, and a top plate covering the stator core. The top plate completely blocks the through holes, ensuring that the stator core and coil windings are isolated from the outside environment after the drive unit is installed inside the housing. This prevents accidental contact with the stator core or coil windings, thus avoiding electric shock and improving machine safety. Furthermore, compared to a fully enclosed housing design, installing the drive unit inside the housing allows for a higher mounting position, effectively shortening the distance between the drive unit and the rotor. This enhances the magnetic attraction between the drive unit and the rotor, ensuring stable rotor rotation. Simultaneously, when the temperature rises at the bottom of the cup due to the magnetic eddy currents generated when the drive unit drives the rotor, the heat from the bottom of the cup can be conducted downwards to the top plate, and then downwards through components such as the stator core. Effective heat dissipation is achieved through the heat dissipation mechanism within the housing, thereby reducing the temperature rise of the rotor and the vicinity of the drive unit. This prevents a decrease in magnetic attraction due to high temperatures, which could lead to a reduction in the torque transmission force between the drive unit and the rotor, or even a failure of the magnetic attraction to drive the blades. This ensures the stability of the entire machine's operation and guarantees the processing effect on the food. Furthermore, with the top plate covering the stator core, the space occupied by the entire drive unit during installation is significantly reduced, especially the vertical height of the main unit, bringing it close to the height of the drive unit. This extreme compression of the overall machine height improves the product's portability, making it easier for users to pick up and store the product.

[0009] In a preferred embodiment of a food processing machine with stable transmission, a sealing ring is clamped between the top plate and the through hole.

[0010] By clamping a sealing ring between the top plate and the through hole, the through hole is sealed to prevent liquid from seeping into the drive unit and the housing. This provides waterproof protection for the drive unit and the internal components of the housing, avoiding short circuits or corrosion caused by liquid infiltration and extending the service life of the equipment. On the other hand, the presence of the sealing ring further enhances the tightness of the connection between the top plate and the housing, strengthens the overall structural stability, ensures the stability of the drive unit's position, and prevents the drive unit from shifting after severe vibration, which could lead to inaccurate alignment between the drive unit and the rotor, resulting in reduced torque transmission efficiency or even failure to drive. This ensures the stability of the entire machine's operation.

[0011] In a preferred embodiment of a food processing machine with stable transmission, the top plate is provided with an annular rib inserted into a through hole, and a sealing ring is clamped between the annular rib and the wall of the through hole.

[0012] By providing annular ribs that insert into the through holes on the top plate, and clamping the sealing ring between the annular ribs and the hole wall of the through hole, the mating area between the top plate and the through hole is greatly increased, thereby increasing the sealing area of ​​both and helping to further improve the sealing effect. At the same time, it can also improve the limiting effect of the through hole on the top plate, thereby improving the stability of the entire drive device position, ensuring the precise alignment of the drive device and the rotor, and ensuring the high efficiency of torque transmission.

[0013] In a preferred embodiment of a food processing machine with stable transmission, a first limiting rib extending inward is provided at the top of the through hole, and a second limiting rib extending outward is provided at the bottom of the annular rib. The first limiting rib and the second limiting rib abut against the top wall and bottom wall of the sealing ring, respectively.

[0014] By providing an inwardly extending first limiting rib at the top of the through hole and an outwardly extending second limiting rib at the bottom of the annular rib, with the first and second limiting ribs abutting against the top and bottom walls of the sealing ring respectively, the sealing ring is not only held radially by the annular rib and the through hole wall, but also axially by the first and second limiting ribs. This achieves dual radial and axial clamping and fixation of the sealing ring, ensuring its stability in multiple dimensions and effectively preventing displacement caused by vibration or liquid impact, further improving the sealing effect and the reliability of the overall structure. Simultaneously, the first limiting rib also provides vertical limiting, preventing the top plate from shifting upwards, thus achieving vertical limiting of the entire drive device and further ensuring the stability of the drive device's position.

[0015] In a preferred embodiment of a food processing machine with stable transmission, the height of the top wall of the top plate is higher than the height of the top of the through hole.

[0016] By setting the height of the top wall of the top plate to be higher than the height of the top of the through hole, the top wall of the top plate is positioned higher relative to the top wall of the shell, thus bringing the top plate closer to the bottom wall of the cup. This allows the entire drive device to be positioned higher and closer to the bottom wall of the cup, and thus closer to the rotor, effectively shortening the distance between the drive device and the rotor, improving the magnetic cooperation between the two, and further enhancing the stability of torque transmission between the drive device and the rotor.

[0017] In a preferred embodiment of a food processing machine with stable transmission, the top wall of the main unit is provided with a lower electric coupler located outside the through hole, the bottom end of the cup body is provided with an upper electric coupler coupled to the lower electric coupler, the through hole is provided with a clearance part to avoid the lower electric coupler, and the top plate is provided with a mating part adapted to the clearance part.

[0018] By installing a lower electric coupler on the top wall of the main unit and an upper electric coupler coupled to the lower electric coupler at the bottom of the cup body, stable power transmission between the main unit and the cup body is achieved through the plug-in cooperation of the lower and upper electric couplers after the cup body is installed on the main unit. This ensures the continuity and stability of power supply during processing. At the same time, the through hole is provided with a relief part to avoid the lower electric coupler, and the top plate is provided with a mating part that matches the relief part, so that the lower electric coupler is set further in the radial direction, thereby effectively reducing the radial size of the main unit and further realizing the miniaturization of the main unit. In addition, the formation of the mating part on the top plate can realize the foolproof installation of the top plate, thereby realizing the foolproof installation of the entire drive device, ensuring that the drive device can be installed more quickly and efficiently, which helps to further improve assembly efficiency.

[0019] In a preferred embodiment of a food processing machine with stable transmission, the top plate is bonded and fixed to the top surface of the stator core.

[0020] By setting the top plate to be bonded to the top surface of the stator core, the need for additional connecting components to connect the top plate and the stator core is eliminated, simplifying the connection steps, reducing assembly complexity, and helping to further improve assembly efficiency. At the same time, it can further reduce the distance between the top plate and the stator core, and further reduce the distance between the stator core and the rotor, making the magnetic attraction between the two more stable and reliable, and ensuring the stability of the transmission.

[0021] In a preferred embodiment of a food processing machine with stable transmission, the drive unit further includes a fixed bracket, and the stator core is fixed to the housing by the fixed bracket.

[0022] By fixing the stator core to the housing with a fixed bracket, the stator core is securely positioned within the housing, avoiding displacement caused by vibration or external force. This ensures the stability of the alignment between the drive unit and the rotor, and improves the stability of torque transmission between them.

[0023] In a preferred embodiment of a food processing machine with stable transmission, a fixed bracket is supported on the bottom wall of the stator core, and the top wall of the housing is provided with a mounting post extending downward and fixedly connected to the fixed bracket; or,

[0024] The fixing bracket is bonded and fixed to the bottom wall of the stator core.

[0025] By supporting the fixed bracket on the bottom wall of the stator core, and providing a mounting column on the top wall of the housing that extends downward and is fixedly connected to the fixed bracket, the entire drive unit is suspended on the top wall of the housing by the connection with the fixed bracket. Compared with setting a fixed point on the bottom wall of the housing, this reduces the structural complexity of the bottom of the housing and reduces the thickness of the bottom wall of the housing, thereby further reducing the vertical dimension of the entire host.

[0026] By bonding the fixed bracket to the bottom wall of the stator core, the need for additional connecting components to connect the fixed bracket and the stator core is eliminated. This simplifies the connection process, reduces assembly complexity, and helps to further improve assembly efficiency. At the same time, it can reduce the distance between the stator core and the fixed bracket, thereby further reducing the height of the entire drive unit and reducing its space occupation in the housing, making the main unit structure more compact.

[0027] In a preferred embodiment of a food processing machine with stable transmission, the outer diameter of the top plate is not greater than the inner diameter of the through hole.

[0028] By ensuring that the outer diameter of the top plate is no larger than the inner diameter of the through hole, the top plate can be smoothly connected to the through hole during installation, avoiding interference, further optimizing the assembly process and improving installation convenience. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of a food processing machine in one embodiment of the present invention;

[0031] Figure 2 This is an exploded view of a food processing machine according to one embodiment of the present invention;

[0032] Figure 3 This is a partial cross-sectional view of the host computer in one embodiment of the present invention;

[0033] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0034] Figure 5This is an exploded view of the host computer in one embodiment of the present invention;

[0035] Figure 6 This is an exploded view of the host unit in another form according to one embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the shell structure in one embodiment of the present invention.

[0037] List of components and reference numerals:

[0038] 1-Cup body; 2-Main unit, 21-Through hole, 211-First limiting rib, 212-Allowing part, 22-Mounting column; 3-Drive device, 31-Stator core, 32-Coil winding, 33-Fixed bracket, 34-Top plate, 341-Second limiting rib; 4-Lower electric coupler; 5-Crushing device, 51-Blade, 52-Rotor; 6-Sealing ring. Detailed Implementation

[0039] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0040] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] like Figures 1 to 7 As shown, this utility model provides a food processing machine with stable transmission, including a main unit 2 and a detachable cup body 1 located above the main unit 2 and containing a crushing device 5. The crushing device 5 includes a blade 51 and a rotor 52 that is connected to the blade 51 in transmission. The main unit 2 is provided with a driving device 3, which can generate a changing magnetic field and drive the rotor 52 to rotate so as to drive the blade 51 to rotate. The main unit 2 includes a housing that accommodates the driving device 3. The top wall of the housing is provided with a through hole 21 that is vertically aligned with the driving device 3. The driving device 3 includes a stator core 31, a coil winding 32 wound on the stator core 31, and a top plate 34 covering the stator core 31. The top plate 34 completely blocks the through hole 21.

[0042] This application sets the pulverizing device 5 as a blade 51 and a rotor 52 that is driven by the blade 51. The food processor also includes a drive device 3 that generates a changing magnetic field and drives the reluctance rotor 52 to rotate, thereby rotating the blade 51. When the user places the cup 1 on the main unit 2, the drive device 3 operates and generates a changing magnetic field. The rotor 52, influenced by the magnetic field, begins to rotate, driving the blade 51 to process the food. Compared to existing methods that require upper and lower connectors for torque transmission, this eliminates the need for openings at the bottom of the cup 1, thus eliminating the need for seals and bearings, simplifying the cup 1's structure and reducing cleaning dead zones, making it easier for the user to clean the cup 1. Furthermore, compared to directly placing the brushless motor inside the cup 1, placing the pulverizing device 5 only inside the cup 1 significantly reduces its space occupation, ensuring sufficient pulverizing space within the cup 1 for processing food, guaranteeing processing capacity and pulverizing effect. While maintaining pulverizing capacity and product texture, it also reduces cleaning dead zones, making it easier for the user to clean.

[0043] Meanwhile, the drive unit 3 includes a stator core 31, a coil winding 32 wound on the stator core 31, and a top plate 34 covering the stator core 31. The top plate 34 completely blocks the through hole 21, so that after the drive unit 3 is installed in the housing, the through hole 21 is covered and blocked by the top plate 34, thus isolating the stator core 31 and the coil winding 32 from the outside world. This prevents the user from accidentally touching the stator core 31 or the coil winding 32 during use and causing electric shock, thereby improving the safety of machine use. More preferably, the wall thickness of the top plate 34 is less than the wall thickness of the top wall of the housing. Compared with the entire housing design, when the drive unit 3 is installed in the housing, it can be installed higher up, which can effectively shorten the distance between the drive unit 3 and the rotor 52, thereby increasing the magnetic attraction between the drive unit 3 and the rotor 52 and ensuring that the drive unit 3 can stably drive the rotor 52 to rotate. Simultaneously, when the temperature rises at the bottom wall of the cup body 1 due to the magnetic eddy currents generated when the drive device 3 drives the rotor 52, the heat from the bottom wall of the cup body 1 can be conducted downwards to the top plate 34, and then downwards through components such as the stator core 31. Effective heat dissipation is achieved through the heat dissipation mechanism within the housing, thereby reducing the temperature rise near the rotor 52 and the drive device 3. This prevents a decrease in magnetic attraction due to high temperatures, which could lead to a reduction in torque transmission between the drive device 3 and the rotor 52, or even a failure of magnetic attraction to drive the blade 51 to rotate. This ensures the stability of the entire machine's operation and guarantees the processing effect on the food. Furthermore, after the top plate 34 covers the stator core 31, it significantly reduces the space occupied by the entire drive device 3 during installation, especially reducing the vertical height of the main unit 2, making the vertical height of the main unit 2 approach the height of the drive device 3. This achieves extreme compression of the overall machine height, improving the product's portability and making it easier for users to pick up and store the product.

[0044] As a preferred embodiment of this application, such as Figure 3 , Figure 4 As shown, a sealing ring 6 is clamped between the top plate 34 and the through hole 21.

[0045] By clamping a sealing ring 6 between the top plate 34 and the through hole 21, the through hole 21 is sealed, preventing liquid from seeping into the drive unit 3 and the housing. This provides waterproof protection for the drive unit 3 and the internal components of the housing, avoiding short circuits or corrosion caused by liquid infiltration and extending the service life of the equipment. On the other hand, the presence of the sealing ring 6 further enhances the tightness of the connection between the top plate 34 and the housing, strengthens the overall structural stability, ensures the stability of the drive unit 3 position, and avoids the situation where the drive unit 3 is displaced after severe vibration, resulting in inaccurate alignment between the drive unit 3 and the rotor 52, which would reduce torque transmission efficiency or even prevent the drive from operating. This ensures the stability of the entire machine operation.

[0046] As a preferred embodiment, such as Figure 4 As shown, the top plate 34 is provided with an annular rib that is inserted into the through hole 21, and the sealing ring 6 is clamped between the annular rib and the hole wall of the through hole 21.

[0047] By providing annular ribs that insert into the through hole 21 on the top plate 34, and clamping the sealing ring 6 between the annular ribs and the hole wall of the through hole 21, the mating area between the top plate 34 and the through hole 21 is greatly increased, thereby increasing the sealing area of ​​both and helping to further improve the sealing effect. At the same time, it can also improve the limiting effect of the through hole 21 on the top plate 34, thereby improving the stability of the entire drive device 3 position, ensuring the precise alignment of the drive device 3 and the rotor 52, and ensuring the high efficiency of torque transmission.

[0048] Furthermore, such as Figure 4 As shown, the top of the through hole 21 is provided with an inwardly extending first limiting rib 211, and the bottom of the annular rib is provided with an inwardly extending second limiting rib 341. The first limiting rib 211 and the second limiting rib 341 abut against the top wall and bottom wall of the sealing ring 6, respectively.

[0049] By providing an inwardly extending first limiting rib 211 at the top of the through hole 21 and an inwardly extending second limiting rib 341 at the bottom of the annular rib, with the first limiting rib 211 and the second limiting rib 341 respectively abutting against the top and bottom walls of the sealing ring 6, the sealing ring 6 is not only held radially by the annular rib and the wall of the through hole 21, but also axially by the first limiting rib 211 and the second limiting rib 341. This achieves dual radial and axial clamping and fixation of the sealing ring 6, ensuring its stability in multiple dimensions and effectively preventing displacement caused by vibration or liquid impact, further improving the sealing effect and the reliability of the overall structure. Simultaneously, the first limiting rib 211 also provides vertical limiting, preventing the top plate 34 from moving upwards, thus achieving vertical limiting of the entire drive device 3 and further ensuring the stability of the drive device 3's position.

[0050] It should be noted that this application does not specifically limit the relative positional relationship between the top plate 34 and the through hole 21. It can be that the top wall of the top plate 34 is flush with the top of the through hole 21, or, as a preferred embodiment of this application, such as... Figure 3 As shown, the height of the top wall of the top plate 34 is higher than the height of the top of the through hole 21.

[0051] By setting the height of the top wall of the top plate 34 to be higher than the height of the top of the through hole 21, the top wall of the top plate 34 is positioned higher relative to the top wall of the shell, thereby making the top plate 34 closer to the bottom wall of the cup body 1. This allows the entire drive device 3 to be positioned higher and closer to the bottom wall of the cup body 1, and thus closer to the rotor 52. This effectively shortens the distance between the drive device 3 and the rotor 52, improves the magnetic cooperation between the two, and further enhances the stability of torque transmission between the drive device 3 and the rotor 52.

[0052] As a preferred embodiment of this application, such as Figure 5 As shown, the top wall of the host 2 is provided with a lower electric coupler 4 located outside the through hole 21, the bottom end of the cup body 1 is provided with an upper electric coupler that is coupled to the lower electric coupler 4, the through hole 21 is provided with a clearance part 212 to avoid the lower electric coupler 4, and the top plate 34 is provided with a mating part that is adapted to the clearance part 212.

[0053] By setting a lower electric coupler 4 on the top wall of the host 2 and setting an upper electric coupler coupled to the lower electric coupler 4 at the bottom of the cup body 1, after the cup body 1 is installed on the host 2, stable power transmission between the host 2 and the cup body 1 is achieved through the plug-in cooperation of the lower electric coupler 4 and the upper electric coupler, ensuring the continuity and stability of power supply during processing. At the same time, the through hole 21 is provided with a relief part 212 to avoid the lower electric coupler 4, and the top plate 34 is provided with a mating part adapted to the relief part 212, so that the lower electric coupler 4 is set further in the radial direction, thereby effectively reducing the radial dimension of the host 2 and further realizing the miniaturization of the host 2. In addition, the formation of the mating part on the top plate 34 can realize the foolproof installation of the top plate 34, thereby realizing the foolproof installation of the entire drive device 3, ensuring that the drive device 3 can be installed more quickly and efficiently, which helps to further improve assembly efficiency.

[0054] It should be noted that this application does not specifically limit the fixing method between the top plate 34 and the stator core 31. As one preferred embodiment of this application, such as... Figure 3 As shown, the top plate 34 is bonded and fixed to the top surface of the stator core 31.

[0055] By setting the top plate 34 to be bonded and fixed to the top surface of the stator core 31, the need for additional connecting components to connect the top plate 34 and the stator core 31 is eliminated. This simplifies the connection steps, reduces assembly complexity, and helps to further improve assembly efficiency. At the same time, it can further reduce the distance between the top plate 34 and the stator core 31, and further reduce the distance between the stator core 31 and the rotor 52, making the magnetic attraction between the two more stable and reliable, and ensuring the stability of the transmission.

[0056] As a preferred embodiment of this application, such as Figure 4 , Figure 5 , Figure 6 As shown, the drive device 3 also includes a fixed bracket 33, and the stator core 31 is fixed to the housing by the fixed bracket 33.

[0057] By fixing the stator core 31 to the housing via the fixing bracket 33, the stator core 31 is securely positioned within the housing, avoiding displacement caused by vibration or external force, thereby ensuring the alignment stability of the drive device 3 and the rotor 52 and improving the stability of torque transmission between them.

[0058] Furthermore, such as Figure 7 As shown, the fixed bracket 33 is supported on the bottom wall of the stator core 31, and the top wall of the housing is provided with a mounting column 22 that extends downward and is fixedly connected to the fixed bracket 33.

[0059] By supporting the fixed bracket 33 on the bottom wall of the stator core 31, and providing a mounting column 22 that extends downward and is fixedly connected to the fixed bracket 33 on the top wall of the housing, the entire drive device 3 is hoisted on the top wall of the housing by fixing the connection with the fixed bracket 33. Compared with setting a fixed point on the bottom wall of the housing, this reduces the structural complexity of the bottom of the housing and reduces the thickness of the bottom wall of the housing, thereby further reducing the vertical dimension of the entire host 2.

[0060] It should be noted that this application does not specifically limit the fixed connection method between the fixed bracket 33 and the stator core 31. As a preferred embodiment of this application, the fixed bracket 33 is bonded and fixed to the bottom wall of the stator core 31.

[0061] By bonding the fixed bracket 33 to the bottom wall of the stator core 31, the need for separate connecting parts to connect the fixed bracket 33 and the stator core 31 is eliminated. This simplifies the connection steps, reduces assembly complexity, and helps to further improve assembly efficiency. At the same time, it can reduce the distance between the stator core 31 and the fixed bracket 33, thereby further reducing the height of the entire drive device 3, thus reducing its space occupation in the housing and making the main unit 2 structure more compact.

[0062] As a preferred embodiment of this application, such as Figure 3 As shown, the outer diameter of the top plate 34 is not greater than the inner diameter of the through hole 21.

[0063] By ensuring that the outer diameter of the top plate 34 is no greater than the inner diameter of the through hole 21, the top plate 34 can be smoothly connected to the through hole 21 during installation, avoiding interference, further optimizing the assembly process and improving the ease of installation.

[0064] The technical solutions protected by this utility model are not limited to the above embodiments. It should be noted that any combination of the technical solutions of any embodiment with one or more other embodiments is within the protection scope of this utility model. Although this utility model has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A food processing machine with stable transmission, comprising a main unit and a detachable cup body disposed above the main unit and having a built-in crushing device, characterized in that, The crushing device includes blades and a rotor that is pulverized in connection with the blades. The main unit is equipped with a drive device that can generate a changing magnetic field and drive the rotor to rotate, thereby causing the blades to rotate. The main unit includes a housing that accommodates the drive device. The top wall of the housing is provided with a through hole that is vertically aligned with the drive device. The drive device includes a stator core, a coil winding wound on the stator core, and a top plate covering the stator core. The top plate completely blocks the through hole.

2. The food processing machine with stable transmission according to claim 1, characterized in that, A sealing ring is held between the top plate and the through hole.

3. The food processing machine with stable transmission according to claim 2, characterized in that, The top plate is provided with an annular rib that is inserted into the through hole, and the sealing ring is clamped between the annular rib and the wall of the through hole.

4. A food processing machine with stable transmission according to claim 3, characterized in that, The top of the through hole is provided with an inwardly extending first limiting rib, and the bottom of the annular rib is provided with an inwardly extending second limiting rib. The first limiting rib and the second limiting rib abut against the top wall and bottom wall of the sealing ring, respectively.

5. A food processing machine with stable transmission according to claim 1, characterized in that, The height of the top wall of the top plate is higher than the height of the top of the through hole.

6. A food processing machine with stable transmission according to claim 1, characterized in that, The top wall of the main unit is provided with a lower electric coupler located outside the through hole, the bottom end of the cup body is provided with an upper electric coupler coupled to the lower electric coupler, the through hole is provided with a clearance part to avoid the lower electric coupler, and the top plate is provided with a mating part adapted to the clearance part.

7. A food processing machine with stable transmission according to claim 1, characterized in that, The top plate is bonded and fixed to the top surface of the stator core.

8. A food processing machine with stable transmission according to claim 1, characterized in that, The drive device also includes a fixed bracket, through which the stator core is fixed to the housing.

9. A food processing machine with stable transmission according to claim 8, characterized in that, The fixed bracket is supported on the bottom wall of the stator core, and the top wall of the housing is provided with a mounting post extending downward and fixedly connected to the fixed bracket; or... The fixing bracket is bonded and fixed to the bottom wall of the stator core.

10. A food processing machine with stable transmission according to claim 1, characterized in that, The outer diameter of the top plate is not greater than the inner diameter of the through hole.

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