A food processor that is easy to produce

Abstract

This utility model discloses a food processing machine that is easy to manufacture, including a cup body with a crushing device inside and a brushless motor that drives the crushing device to rotate. The brushless motor includes a stator and a rotor. The stator includes a stator core and a stator winding. The stator core has multiple outwardly extending stator teeth along its circumference. The stator winding includes multiple winding brackets and winding coils wound on the winding brackets. The multiple winding brackets are separately and independently sleeved and fixed on each stator tooth. When the stator winding is wound onto the winding brackets, each winding bracket can be independently separated and wound with the stator winding, which greatly expands the winding space, makes winding more convenient and faster, and helps to improve winding efficiency. At the same time, each winding bracket and its winding coil can be installed and adjusted individually, reducing the complexity and time cost of overall assembly. It can also be used as the smallest production unit, enabling batch winding and batch installation onto the stator teeth, which greatly improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a food processing machine that is easy to use in production. Background Technology

[0002] Existing food processors typically consist of a cup with a grinding chamber, a grinding device inside the grinding chamber, and a motor that drives the grinding device. When using the food processor, the user places the food into the grinding chamber, and the motor rotates at high speed, driving the grinding device to process the food. Most existing motors are brushed motors, but these produce significant noise and vibration during operation, resulting in a poor user experience. To improve processing results, many manufacturers replace brushless motors with brushless motors, which offer numerous advantages such as longer lifespan, lower vibration, lower noise, and no carbon powder pollution. For example, Chinese patent CN201910786730.1 discloses a stator core, a stator assembly, a motor, a food processor, and a blower. The stator assembly includes a stator core with stator windings mounted on its stator teeth. Winding supports are fitted onto the stator teeth of the stator core, and multiple stator windings are respectively mounted on the winding supports. As shown in the accompanying drawings, the number of winding supports is the same as the number of stator teeth, and all winding supports are connected as a single unit. This results in a small space between adjacent winding supports. When producing brushless motors, the limited installation space between the winding supports increases the difficulty of winding the coils, easily causing coil damage or uneven winding, significantly reducing production efficiency. Furthermore, if a single winding support is damaged during production or winding, the entire winding support assembly needs to be replaced, increasing maintenance costs and time, and affecting the overall production schedule. Utility Model Content

[0003] The purpose of this utility model is to provide a food processing machine that is easy to produce, in order to solve the problem of how to avoid the difficulty of winding and low assembly efficiency of the whole machine due to the small installation space between the winding brackets of the brushless motor when using a brushless motor to improve the overall performance.

[0004] To achieve the above objectives, this utility model provides a food processing machine that is easy to produce, including a cup body with a crushing device inside and a brushless motor that drives the crushing device to rotate. The brushless motor includes a stator and a rotor located above the stator. The stator includes a stator core and a stator winding. The stator core has multiple outwardly extending stator teeth along its circumference. The stator winding includes multiple winding supports and winding coils wound on the winding supports. The multiple winding supports are separately and independently sleeved and fixed on each stator tooth.

[0005] This application configures the stator winding as comprising multiple winding supports and winding coils wound on these supports, with each winding support being independently mounted and fixed to its respective stator tooth. On one hand, compared to existing methods where all winding supports are fixed together, this allows each winding support to be independently wound with the stator winding during production, significantly expanding the winding space and making winding more convenient and efficient. On the other hand, each winding support and its winding coil can be installed and adjusted individually, reducing the complexity and time cost of overall assembly. It can also serve as the smallest production unit, enabling batch winding and batch installation onto the stator teeth, greatly improving production efficiency. Furthermore, if a single winding support is damaged during winding or production, it can be repaired by replacing the entire support, eliminating the need for complete replacement and helping to reduce maintenance costs and further improve production efficiency.

[0006] In a preferred embodiment of a food processing machine that facilitates production, the winding support includes a sleeve for winding the coil, and the sleeve is fitted and fixed to the outside of the stator teeth.

[0007] By configuring the winding bracket to include a sleeve for winding the coil, and fixing the sleeve to the outside of the stator teeth, the winding bracket can tightly wind the coil onto the sleeve when assembled with the winding coil, ensuring the stability and uniformity of the winding. At the same time, after the winding is completed, the sleeve can be directly fixed to the outside of the stator teeth, further simplifying the assembly process and helping to further improve production efficiency.

[0008] In a preferred embodiment of a food processing machine that facilitates production, the sleeve includes a cylinder and a buckle extending downward from the bottom end of the cylinder, the buckle being engaged with the stator core.

[0009] By designing the sleeve as a unit including the cylinder and a snap-fit ​​extending downwards from the bottom of the cylinder, with the snap-fit ​​engaging with the stator core, the sleeve can be securely fastened to the stator core when fixed to the stator teeth. This further enhances the connection stability between the sleeve and the stator teeth, effectively preventing loosening due to vibration during high-speed operation, ensuring the reliability and safety of motor operation, and extending the service life of the equipment. Simultaneously, the snap-fit ​​design simplifies the assembly and replacement process, helping to further improve assembly efficiency, and facilitating daily maintenance and upkeep.

[0010] In a preferred embodiment of a food processing machine that facilitates production, the stator core includes a fixed ring with a through hole in the middle, stator teeth are formed on the first end face of the fixed ring, and the buckle includes a first buckle extending to the outer side of the outer wall of the fixed ring and a second buckle extending to the outer side of the inner wall of the through hole, and both the first buckle and the second buckle are engaged with the second end face opposite to the first end face of the fixed ring.

[0011] By configuring the latches to include a first latch extending to the outer side of the outer wall of the fixing ring and a second latch extending to the outer side of the inner wall of the through hole, with both the first and second latches engaging with the second end face opposite to the first end face of the fixing ring, the sleeve is secured to the stator core in both directions through the first and second latches. This not only achieves axial engagement but also radial limiting, ensuring a stable connection between the winding bracket and the stator teeth, further preventing loosening during high-speed operation, improving the overall performance of the motor, and extending its service life.

[0012] In a preferred embodiment of a food processing machine that facilitates production, the sleeve includes a cylinder and flanges extending outward from the top and bottom of the cylinder, with a limiting groove formed between the two flanges, and a winding coil wound in the limiting groove.

[0013] By designing the sleeve as a unit comprising a cylindrical body and flanges extending outwards from the top and bottom of the body, a limiting groove is formed between the two flanges. The winding coil is wound within the limiting groove, effectively fixing the coil during winding and preventing offset caused by uneven winding. This ensures winding accuracy and consistency, further improving the smoothness and efficiency of the brushless motor's operation. Simultaneously, it avoids relative displacement between the winding coil and the sleeve, preventing instability in the brushless motor's operation. Furthermore, the flange design enhances the overall strength of the sleeve, effectively resisting external impacts and ensuring long-term stable operation of the equipment.

[0014] In a preferred embodiment of a food processing machine that facilitates production, the height of the flange is not less than the thickness of the winding coil.

[0015] By ensuring that the height of the flange is not less than the thickness of the winding coil, the flange provides a limiting effect on all winding coils, allowing the winding coils to be stably fixed in the limiting slot. This effectively prevents the coils from shifting due to centrifugal force during high-speed operation, further improving the stability and reliability of the brushless motor, reducing the failure rate caused by coil displacement, and extending the service life of the equipment.

[0016] In a preferred embodiment of a food processing machine that facilitates production, the sleeve and stator teeth are interference-fitted; or,

[0017] One of the sleeve inner wall and the stator teeth is provided with a protrusion, and the other of the two is provided with a groove that matches the protrusion for positioning.

[0018] By setting the sleeve and stator teeth to an interference fit, the sleeve can achieve a tight connection between the two simply by interfering with the stator teeth, without the need for additional clips or fixing devices. This simplifies the assembly process, helps to further improve assembly efficiency, and also simplifies the structure of the sleeve and reduces production costs.

[0019] In a preferred embodiment of a food processing machine that facilitates production, the inner cross-section of the sleeve is the same as the cross-section of the stator teeth, so that after the sleeve is fitted onto the stator teeth, it can fit tightly against the outer wall of the stator teeth, ensuring the radial support of the stator teeth on the sleeve, further improving the stability of the connection and fixation between the sleeve and the stator teeth, reducing vibration and noise caused by loose connection, and improving the stability of the brushless motor operation.

[0020] In a preferred embodiment of a food processing machine that facilitates production, the number of winding supports is even.

[0021] In a preferred embodiment of a food processing machine that facilitates production, each winding support is arranged in close contact with the others in the circumferential direction.

[0022] By placing each winding bracket tightly against the other in the circumferential direction, the winding brackets can achieve mutual circumferential restraint, improving the overall stability of the winding brackets and effectively preventing abnormal vibrations caused by displacement of the winding brackets during brushless motor operation, thus further improving the stability of brushless motor operation. Attached Figure Description

[0023] 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:

[0024] Figure 1 This is a schematic diagram of the structure of a food processing machine in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the stator and rotor in one embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the stator structure in one embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the stator structure at another angle in one embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the winding bracket in one embodiment of the present invention;

[0029] Figure 6This is a schematic diagram of the assembly of the stator and a single winding bracket in one embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the stator and a single winding bracket assembly at another angle in one embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the structure of a food processing machine in another embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of a food processing machine in another embodiment of the present invention.

[0033] List of components and reference numerals:

[0034] 1-Cup body, 11-Cup body body, 12-Cup seat; 2-Main unit; 3-Rotor; 4-Stator, 41-Stator winding, 411-Winding bracket, 4111-Flange, 4112-First buckle, 4113-Second buckle, 4114-Cylinder; 412-Winding coil, 42-Stator core, 421-Stator tooth, 422-Fixing ring, 423-Through hole. Detailed Implementation

[0035] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0036] 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.

[0037] like Figures 1 to 9 As shown, this utility model provides a food processing machine that is easy to produce, including a cup body 1 with a crushing device inside and a brushless motor that drives the crushing device to rotate. The brushless motor includes a stator 4 and a rotor 3 located above the stator 4. The stator 4 includes a stator core 42 and a stator winding 41. The stator core 42 has a plurality of outwardly extending stator teeth 421 along its circumference. The stator winding 41 includes a plurality of winding supports 411 and winding coils 412 wound on the winding supports 411. The plurality of winding supports 411 are separately and independently sleeved and fixed on each stator tooth 421.

[0038] This application configures the stator winding 41 as including multiple winding brackets 411 and winding coils 412 wound on the winding brackets 411. The multiple winding brackets 411 are separately and independently sleeved and fixed on each stator tooth 421. On the one hand, compared with the existing method where all winding brackets 411 are fixed together, when the stator winding 41 is wound onto the winding brackets 411, each winding bracket 411 can be independently wound with the stator winding 41, which greatly expands the winding space, makes winding more convenient and faster, and helps to improve winding efficiency. On the other hand, each winding bracket 411 and the winding coil 412 on it can be installed and debugged individually, reducing the complexity and time cost of overall assembly. It can also serve as the smallest production unit, enabling batch winding and batch installation onto the stator tooth 421, which greatly improves production efficiency. Meanwhile, if a single winding bracket 411 is damaged during the winding or production process, it can be repaired by replacing the entire winding bracket 411, without the need for complete replacement. This helps reduce maintenance costs and further improve production efficiency.

[0039] As a preferred embodiment of this application, such as Figure 5 , Figure 6 , Figure 7 As shown, the winding bracket 411 includes a sleeve for winding the winding coil 412, and the sleeve is fitted and fixed to the outside of the stator tooth 421.

[0040] By configuring the winding bracket 411 to include a sleeve for winding the winding coil 412, and fixing the sleeve to the outside of the stator teeth 421, the winding bracket 411 can tightly wind the winding coil 412 onto the sleeve when it is assembled with the winding coil 412, ensuring the stability and uniformity of the winding. At the same time, after the winding is completed, the sleeve can be directly fixed to the outside of the stator teeth 421, further simplifying the assembly process and helping to further improve production efficiency.

[0041] It should be noted that this application does not specifically limit how the winding bracket 411 is fixed to the stator tooth 421 in this embodiment, and it can be any of the following embodiments:

[0042] Example 1: As Figure 5 , Figure 6 , Figure 7 As shown, in this embodiment, the sleeve includes a cylindrical body 4114 and a buckle extending downward from the bottom end of the cylindrical body 4114, the buckle being engaged with the stator core 42.

[0043] By configuring the sleeve as a unit including a cylinder 4114 and a snap-fit ​​extending downwards from the bottom of the cylinder 4114, with the snap-fit ​​engaging with the stator core 42, the sleeve can be securely engaged with the stator core 42 when fixed to the stator gear 421. This further enhances the connection stability between the sleeve and the stator gear 421, effectively preventing loosening due to vibration during high-speed operation, ensuring the reliability and safety of motor operation, and extending the service life of the equipment. Simultaneously, the snap-fit ​​design simplifies the assembly and replacement process, helping to further improve assembly efficiency, and facilitating daily maintenance and upkeep.

[0044] Furthermore, such as Figure 5 , Figure 6 , Figure 7 As shown, the stator core 42 includes a fixing ring 422 with a through hole 423 in the middle. The stator teeth 421 are formed on the first end face of the fixing ring 422. The buckle includes a first buckle 4112 extending to the outer side of the outer wall of the fixing ring 422 and a second buckle 4113 extending to the outer side of the inner wall of the through hole 423. Both the first buckle 4112 and the second buckle 4113 are engaged with the second end face opposite to the first end face of the fixing ring 422.

[0045] By configuring the latches to include a first latch 4112 extending to the outer side of the outer wall of the fixing ring 422 and a second latch 4113 extending to the outer side of the inner wall of the through hole 423, and both the first latch 4112 and the second latch 4113 engaging with the second end face opposite to the first end face of the fixing ring 422, the sleeve is bidirectionally and securely fixed to the stator core 42 through the first latch 4112 and the second latch 4113. This not only achieves axial engagement but also radial limiting, ensuring a stable connection between the winding bracket 411 and the stator teeth 421, further preventing loosening during high-speed operation, improving the overall performance of the motor, and extending its service life.

[0046] Example 2: In this example, the sleeve and stator tooth 421 are interference fit.

[0047] By setting the sleeve and stator tooth 421 to an interference fit, the sleeve can be fastened to the stator tooth 421 through the interference fit alone, without the need for additional clips or fixing devices. This simplifies the assembly process, helps to further improve assembly efficiency, and also simplifies the structure of the sleeve and reduces production costs.

[0048] Example 3: In this example, one of the inner wall of the sleeve and the stator tooth 421 is provided with a protrusion, and the other of the two is provided with a groove that matches the protrusion. Preferably, the inner wall of the sleeve is provided with a protrusion, and the side wall of the stator tooth 421 is provided with a groove.

[0049] As a preferred embodiment of this implementation, such as Figure 5As shown, the sleeve includes a cylindrical body 4114 and flanges 4111 extending outward from the top and bottom of the cylindrical body 4114. A limiting groove is formed between the two flanges 4111, and the winding coil 412 is wound in the limiting groove.

[0050] By configuring the sleeve to include a cylindrical body 4114 and flanges 4111 extending outward from the top and bottom of the cylindrical body 4114, a limiting groove is formed between the two flanges 4111. The winding coil 412 is wound within the limiting groove, which effectively fixes the coil during winding, preventing offset caused by uneven winding, ensuring winding accuracy and consistency, and further improving the smoothness and efficiency of the brushless motor. It also prevents relative displacement between the winding coil 412 and the sleeve, thus avoiding instability in the brushless motor's operation. Furthermore, the flange 4111 design enhances the overall strength of the sleeve, effectively resisting external impacts and ensuring long-term stable operation of the equipment.

[0051] It should be noted that this application does not specifically limit the height of the flange 4111 and the thickness of the winding coil 412. As a preferred embodiment of this application, such as Figure 5 As shown, the height of the flange 4111 is not less than the thickness of the winding coil 412.

[0052] By ensuring that the height of the flange 4111 is not less than the thickness of the winding coil 412, the flange 4111 provides a limiting effect on all winding coils 412, allowing the winding coils 412 to be stably fixed in the limiting groove. This effectively prevents the coil from shifting due to centrifugal force during high-speed operation, further improving the stability and reliability of the brushless motor, reducing the failure rate caused by coil displacement, and extending the service life of the equipment.

[0053] As a preferred embodiment of this application, such as Figure 7 As shown, the inner cross-section of the sleeve is the same as the cross-section of the stator tooth 421, so that after the sleeve is fitted onto the stator tooth 421, it can fit tightly against the outer wall of the stator tooth 421, ensuring the radial support of the stator tooth 421 on the sleeve, further improving the stability of the connection and fixation between the sleeve and the stator tooth 421, reducing vibration and noise caused by loose connection, and improving the stability of brushless motor operation.

[0054] As a preferred embodiment of this application, such as Figure 4 As shown, the number of winding brackets 411 is even. Preferably, the number of winding brackets 411 is 6, 8, 10, etc.

[0055] As a preferred embodiment of this application, such as Figure 4 As shown, each winding bracket 411 is set tightly against the other in the circumferential direction.

[0056] By placing each winding bracket 411 close to the other in the circumferential direction, the winding brackets 411 can achieve mutual circumferential positioning, thereby improving the overall stability of the winding brackets 411 and effectively preventing abnormal vibration caused by displacement of the winding brackets 411 during brushless motor operation, thus further improving the stability of brushless motor operation.

[0057] It should be noted that this application does not specifically limit the structure of the food processing machine, such as... Figure 1 As shown, the food processor may include a main unit 2, a cup body 1 detachably mounted on the main unit 2, a stator 4 disposed within the main unit 2, and a rotor 3 disposed within the cup holder 12 of the cup body 1. The rotor 3 is connected to the pulverizing device via a cutter shaft. Figure 8 As shown, the food processor may also include a main unit 2, a cup body 1, and a brushless motor housed within the main unit 2, with the rotor 3 connected to the crushing device via a cutter shaft; for example... Figure 9 As shown, the cup body 1 may also include a cup body 11 and a cup holder 12 connected to the bottom of the cup body 11. The brushless motor is located in the cup holder 12, and the rotor 3 is connected to the crushing device through a cutter shaft.

[0058] 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 for easy production, comprising a cup body with a built-in crushing device and a brushless motor for driving the crushing device to rotate, characterized in that, The brushless motor includes a stator and a rotor disposed above the stator. The stator includes a stator core and a stator winding. The stator core has a plurality of outwardly extending stator teeth along its circumference. The stator winding includes a plurality of winding supports and winding coils wound on the winding supports. The plurality of winding supports are separately and independently sleeved and fixed on each of the stator teeth.

2. The food processing machine for easy production according to claim 1, characterized in that, The winding support includes a sleeve for winding the winding coil, and the sleeve is fitted and fixed to the outside of the stator teeth.

3. The food processing machine for easy production according to claim 2, characterized in that, The sleeve includes a cylindrical body and a buckle extending downward from the bottom end of the cylindrical body, the buckle being engaged with the stator core.

4. The food processing machine for easy production according to claim 3, characterized in that, The stator core includes a fixing ring with a through hole in the middle. The stator teeth are formed on the first end face of the fixing ring. The buckle includes a first buckle extending to the outer side of the outer wall of the fixing ring and a second buckle extending to the outer side of the inner wall of the through hole. Both the first buckle and the second buckle are engaged with the second end face opposite to the first end face of the fixing ring.

5. A food processing machine for easy production according to claim 2, characterized in that, The sleeve includes a cylindrical body and flanges extending outward from the top and bottom of the cylindrical body, with a limiting groove formed between the two flanges, and the winding coil is wound in the limiting groove.

6. A food processing machine for easy production according to claim 5, characterized in that, The height of the flange is not less than the thickness of the winding coil.

7. A food processing machine for easy production according to claim 2, characterized in that, The sleeve is interference-fitted with the stator teeth; or... One of the inner wall of the sleeve and the stator teeth is provided with a protrusion, and the other of the two is provided with a groove that matches the protrusion.

8. A food processing machine for easy production according to claim 2, characterized in that, The inner cross-section of the sleeve is the same as the cross-section of the stator tooth.

9. A food processing machine for easy production according to claim 1, characterized in that, The number of winding brackets is even.

10. A food processing machine for easy production according to claim 1, characterized in that, Each of the aforementioned winding brackets is installed in close contact with the other in the circumferential direction.

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