Permanent magnet starting motor and energy-saving chef machine

Abstract

The present invention relates to the technical field of electric motors, and discloses a permanent magnet starter motor and an energy-saving food processor, wherein a permanent magnet starter motor comprises a housing, a stator disposed in the housing, a permanent magnet rotor rotatably disposed in the stator, and a main shaft disposed on the rotor, wherein a housing vibration-isolating unit is disposed on the housing; the housing vibration-isolating unit comprises a connecting plate disposed above the housing, a plurality of vibration-isolating plates are disposed between the connecting plate and the upper end face of the housing, a plurality of cables are annularly disposed at equal intervals between the housing and the connecting plate, the cables pass through the plurality of vibration-isolating plates, and are used to clamp the plurality of vibration-isolating plates between the connecting plate and the housing. Through the housing vibration-isolating unit, the connecting plate and the housing in the food processor are connected through the vibration-isolating plates, and are tightened by the plurality of cables, so that most of the vibration of the housing is filtered out by the vibration-isolating plates, reducing the transmission of housing vibration to the food processor, and by suppressing invalid vibration, the motor output power is more efficiently converted into useful mechanical work, thereby building a closed loop of silence and energy saving.

Description

Technical Field

[0001] The present invention relates to the technical field of electric motors, and in particular to a permanent magnet starting motor and an energy-saving food processor. Background Art

[0002] As a multifunctional kitchen appliance, a food processor can perform a variety of operations such as mixing, stirring, beating, and kneading ingredients. Its typical structure is supported by a base with a mixer head fixed on top. It is equipped with an adjustable mixing bowl and various functional accessories—such as a blender for general mixing, a whisk for beating eggs, and a dough hook for kneading dough—to form a modular cooking system. Currently, food processors on the market generally have a core pain point: the electromagnetic noise generated by the electric motor during operation significantly affects the user experience, and there is a contradiction that "kneading effect is positively correlated with noise intensity." To achieve better kneading performance, the motor power must be increased, but the increased power will exacerbate the electromagnetic noise problem. This technical bottleneck urgently needs to be overcome.

[0003] Patent publication number CN116548848A discloses a low-noise food processor, which includes a drive device, a transmission assembly, a power output shaft, a stirring shaft and a stirring barrel; the drive device is connected to one end of the power output shaft through the transmission assembly; one end of the stirring shaft is fixedly connected to the other end of the power output shaft, and the other end is used to be fixedly connected to an external stirring accessory; a protrusion is provided on the inner wall of the stirring barrel, one end of the protrusion is close to the opening of the stirring barrel, and the other end extends along the bottom direction of the stirring barrel; compared with the existing food processor, since the planetary gear rack is eliminated at the stirring shaft, the stirring shaft is directly connected to the power output shaft, and since the stirring barrel is provided with a protrusion, the mixing of ingredients can be completed while reducing the noise generated by the gear meshing connection.

[0004] The above patent has the following defects:

[0005] While the existing patented technology achieves partial vibration attenuation through the housing vibration damping unit, it still suffers from a core technical blind spot: it fails to effectively block the vibration coupling path between the motor rotor and the motor housing. Specifically, when the permanent magnet rotor rotates at high speed, the radial and axial vibrations caused by its eccentric mass are directly transmitted to the motor housing. The motor bracket, as a rigid component connecting the motor to the kitchen machine housing, acts as a bridge for vibration transmission. Housing vibrations are transmitted unattenuated through the bracket's metal rigid connection to the kitchen machine's plastic housing. When the vibration frequency coincides with the housing's natural frequency, resonance is induced throughout the machine. This resonance concentrates the previously dispersed vibration energy in specific locations within the housing, significantly increasing the sound pressure level (especially peaks in the mid- and high-frequency ranges). The existing design's flaw lies in its focus on vibration suppression within the housing itself, while ignoring the crucial role of the motor bracket as a vibration transmission medium. The rigid connection makes the bracket a vibration amplification element, and the lack of an elastic buffer structure at the bracket-hobby machine housing connection results in a complete transmission chain of rotor vibration energy along the "rotor-housing-bracket-housing" path, ultimately causing the overall noise level of the kitchen machine to exceed the standard. This vibration transmission mechanism is a common technical bottleneck that causes noise problems in most food processors currently on the market. Summary of the Invention

[0006] In view of the above problems in the prior art, a permanent magnet starter motor and an energy-saving food processor are proposed.

[0007] In one aspect of the present application, a permanent magnet starter motor is provided, the purpose of which is to reduce noise and vibration generated by the rotation of the motor rotor.

[0008] The technical solution of the present invention is: a permanent magnet starter motor, comprising a housing, a stator arranged in the housing, a permanent magnet rotor rotatably arranged in the stator, a main shaft arranged on the rotor, and a housing vibration-proof unit arranged on the housing;

[0009] The shell vibration isolation unit includes a connecting plate arranged above the shell, a plurality of vibration isolation plates are arranged between the connecting plate and the upper end surface of the shell, and a plurality of cables are arranged in a ring at equal intervals between the shell and the connecting plate. Each cable passes through a plurality of vibration isolation plates and is used to clamp the plurality of vibration isolation plates between the connecting plate and the shell.

[0010] By adopting the above solution, the connection plate inside the food processor and the shell are connected by a vibration-isolating plate through the shell vibration-isolating unit, and are tightened by multiple cables so that most of the vibration of the shell is filtered out by the vibration-isolating plate, thereby reducing the transmission of the shell vibration to the food processor.

[0011] Furthermore, a through-terminal is provided on the upper end surface of the connecting plate corresponding to the cable, the cable passes through the through-terminal, a threaded head is provided on the upper end of the cable, a tightening nut is provided on the threaded head, and the tightening nut is tightly attached to the upper end surface of the through-terminal.

[0012] The above solution and the above arrangement can tighten the cable.

[0013] Furthermore, the plurality of cables are arranged obliquely, and the corresponding terminals are arranged in the same direction as the cables.

[0014] By adopting the above solution, the cables are tilted to reduce the vibration of the housing from being directly transmitted to the connecting plate through the cables. Instead, the cables are transmitted to the connecting plate through multiple vibration-damping plates, so that most of the vibration of the housing is filtered out by the vibration-damping plates.

[0015] Furthermore, a snap-fit ​​end is provided at the lower end of the pull cable, and a snap-fit ​​hole is provided on the upper end surface of the shell, and the snap-fit ​​end is snap-fitted in the snap-fit ​​hole.

[0016] The above solution and the above arrangement serve to connect the cable and the housing.

[0017] Furthermore, the vibration-damping plate includes an inlaid layer and a non-inlaid layer, and the inlaid layer and the non-inlaid layer are distributed at intervals. A plurality of positioning holes are opened in the inlaid layer, and the positioning holes are filled with a resonance component. The resonance component includes a silicone sleeve that can be separated in half, and a ball hole is provided at the center of the silicone sleeve, and a metal ball is embedded in the ball hole.

[0018] By adopting the above scheme, by arranging the embedded layer at intervals in the vibration-stopping plate and embedding the resonant component in the layer, the resonant component is embedded in the flexible vibration-stopping plate to achieve vibration blocking, and the band gap effect is generated by local resonance to offset the active wave, thereby reducing the vibration of the shell transmitted to the connecting plate.

[0019] Furthermore, the positioning holes in adjacent inlaid layers are offset from each other.

[0020] By adopting the above solution, the positioning holes in adjacent inlaid layers are offset from each other, so that the resonant components of different layers generate anti-phase forces, destroying the coherent superposition and suppressing the formation of standing waves.

[0021] Furthermore, a limiting ring is provided on the outer wall of the silicone sleeve.

[0022] By adopting the above solution, a limiting ring is provided to play the role of limiting the silicone sleeve.

[0023] Furthermore, the housing is provided with rotor vibration-isolating units, and two groups of rotor vibration-isolating units are provided, symmetrically distributed at the upper end and the lower end of the housing;

[0024] The rotor vibration isolation unit includes a vibration isolation groove arranged on the outer shell, a bearing sleeved on the main shaft, a circular ring sleeved on the outside of the bearing, a plurality of spiral plates arranged in an annular shape at equal intervals on the outside of the circular ring, and a damping plate arranged at the outer end of the spiral plate, which is in close contact with the vibration isolation groove.

[0025] By adopting the above scheme, a rotor vibration-isolating unit is set up, so that the vibration of the main shaft is transmitted to the ring through the bearing, and then to the damping plate through multiple vortex plates, and finally acts on the outer shell. The vortex plate adopts an Archimedean spiral to dissipate the vibration of the main shaft. Then, through the damping plate, part of the vibration transmitted from the main shaft to the outer shell can be filtered out.

[0026] Furthermore, an inner shell is provided inside the outer shell, a sandwich is formed between the outer shell and the inner shell, and heat dissipation holes are provided on the inner shell, and the heat dissipation holes are connected to the sandwich.

[0027] The above solution is adopted to provide a double-layer shell to shield noise.

[0028] Furthermore, the present invention also provides an energy-saving food processor, including a permanent magnet starting motor, a plastic shell, a cooking pot arranged on the plastic shell, a kneading rod arranged in the cooking pot, and a transmission unit arranged in the plastic shell; the transmission unit transmits and connects the main shaft and the kneading rod.

[0029] By adopting the above solution, two-stage vibration isolation is adopted for the vibration generated by the rotation of the motor rotor through the housing vibration isolation unit and the rotor vibration isolation unit, thereby minimizing the effect of the vibration generated by the rotation of the motor rotor on the food processor body.

[0030] Beneficial effects of the present invention:

[0031] The outer shell vibration isolation unit connects the connecting plate inside the food processor to the outer shell via a vibration isolation plate, and is tightened by multiple tension ropes so that most of the outer shell vibration is filtered out by the vibration isolation plate, thereby reducing the transmission of outer shell vibration to the food processor.

[0032] By arranging inlaid layers at intervals in the vibration-stopping plate and inlaying resonant components in the layers, the resonant components are embedded in the flexible vibration-stopping plate to achieve vibration blocking. The band gap effect is generated through local resonance to offset the active wave, thereby reducing the vibration of the shell from being transmitted to the connecting plate.

[0033] By setting up a rotor vibration-isolating unit, the vibration of the main shaft is transmitted to the ring through the bearing, and then to the damping plate through multiple vortex plates, and finally acts on the outer casing. The vortex plate adopts an Archimedean spiral to dissipate the vibration of the main shaft, and then through the damping plate, it can filter out part of the vibration transmitted from the main shaft to the outer casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A perspective view of the permanent magnet starter motor of the present invention;

[0035] Figure 2 It is a top view of the permanent magnet starter motor of the present invention;

[0036] Figure 3 For the present invention Figure 2 Cross-sectional view at the middle BB;

[0037] Figure 4 A three-dimensional diagram of the connecting plate and its attached parts in the permanent magnet starter motor of the present invention;

[0038] Figure 5 This is a three-dimensional diagram of the housing of the permanent magnet starter motor of the present invention;

[0039] Figure 6 A three-dimensional diagram of the rotor vibration stop in the permanent magnet starter motor of the present invention;

[0040] Figure 7 A three-dimensional diagram of the vibration-stopping plate of the permanent magnet starter motor of the present invention;

[0041] Figure 8 For the present invention Figure 7 Another perspective of

[0042] Figure 9 This is a front view of the permanent magnet starter motor stop vibration plate of the present invention;

[0043] Figure 10 For the present invention Figure 9 Cross-sectional view at CC;

[0044] Figure 11 This is a disassembled diagram of the resonant component in the permanent magnet starter motor of the present invention;

[0045] Figure 12 This is a three-dimensional diagram of the energy-saving food processor of the present invention;

[0046] Figure 13 For the present invention Figure 12 Top view of

[0047] Figure 14 For the present invention Figure 13 Cross-sectional view at AA.

[0048] In the picture:

[0049] 1. Housing; 2. Stator; 3. Permanent magnet rotor; 4. Main shaft; 5. Connecting plate; 6. Anti-vibration plate; 7. Cable; 8. Through-terminal; 9. Threaded head; 10. Tightening nut; 11. Engaging end; 12. Engaging hole; 13. Positioning hole; 14. Resonant component; 15. Silicone sleeve; 16. Ball hole; 17. Metal ball; 18. Limiting ring; 19. Anti-vibration groove; 20. Bearing; 21. Ring; 22. Vortex plate; 23. Damping plate; 24. Inner shell; 25. Heat dissipation hole; 26. Plastic shell; 27. Cooking pot; 28. Kneading rod; 29. ​​Transmission unit. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0051] Example 1

[0052] Reference Figures 1-11 , which is the first embodiment of the present invention, provides a permanent magnet starting motor, including a housing 1, a built-in stator 2, a rotatably arranged permanent magnet rotor 3 and a rotor main shaft 4, and in particular, a housing vibration-damping unit arranged on the housing 1. The housing vibration-damping unit is composed of a connecting plate 5 above the housing 1 to form a basic structure. A plurality of vibration-damping plates 6 with elastic buffering functions are arranged between the connecting plate 5 and the upper end surface of the housing 1. The two are connected by a plurality of cables 7 distributed in an annular manner at equal intervals. Each cable 7 passes through the preset through-holes of each vibration-damping plate 6 in turn, and the vibration-damping plates 6 are tightly clamped between the connecting plate 5 and the housing 1 by the tensioning force, forming a multi-level vibration attenuation structure. In order to ensure the accurate positioning of the vibration-damping plates 6, the upper end surface of the topmost vibration-damping plate 6 and the lower end surface of the bottommost vibration-damping plate 6 are both designed with a convex circular structure. Correspondingly, matching circular holes are opened on the upper end surface of the housing 1 and the connecting plate 5. The axial positioning and circumferential limitation of the vibration-damping plates 6 are achieved by the engagement of the convex circle and the circular hole, thereby avoiding displacement during operation.

[0053] Vibration damping plate 6 is made of a rubber material with excellent elastic damping properties. The deformation capacity of the rubber molecular chain absorbs the vibration energy generated by the housing 1 during motor operation. When the permanent magnet rotor 3 rotates and causes the housing 1 to vibrate, the vibration energy is converted into internal energy through the elastic deformation of the vibration damping plate 6, thereby blocking the transmission path of the vibration to the main body of the food processor. This design creates a uniform clamping force field through the annular preload of the cable 7, allowing the multiple layers of vibration damping plates 6 to form a synergistic vibration reduction system. Each layer of vibration damping plates 6 produces a differentiated damping effect on vibrations of different frequencies. When superimposed, it achieves efficient filtering of broadband vibrations.

[0054] The structural design of this vibration damping unit balances assembly convenience and reliability: the circular arrangement of cables 7 allows for adjustment of quantity and spacing based on motor specifications, adapting to the vibration damping requirements of different power levels; the material selection of the rubber vibration damping plate 6 can be replaced with different materials such as silicone rubber and polyurethane based on requirements such as ambient operating temperature and wear resistance; the number of vibration damping plates 6 can also be flexibly increased or decreased based on motor speed and vibration intensity, forming a scalable modular design. Compared to traditional vibration damping methods using a single rubber pad, this structure utilizes multiple layers of elastomers for precise positioning and uniform pre-tensioning, effectively reducing vibration transmission while avoiding component failure due to localized stress concentration. This significantly improves the motor's operational stability and quietness in scenarios such as kitchen appliances.

[0055] Reference Figure 4A through-hole terminal 8 is provided at the position on the upper end surface of the connecting plate 5 corresponding to the cable 7. The terminal is a cylindrical structure that passes through the connecting plate 5 and is provided for the upper end of the cable 7 to pass through. The upper end of the cable 7 extends into the through-hole terminal 8 and is provided with a threaded head 9. The threaded head 9 is adapted to the inner hole of the through-hole terminal 8, and its top is exposed above the terminal and is fitted with a tightening nut 10. The bottom surface of the nut is in close contact with the upper end surface of the through-hole terminal 8. When the tightening nut 10 is rotated, the threaded head 9 is gradually pulled out of the hole of the through-hole terminal 8 under the downward pressure of the nut, thereby driving the cable 7 to tighten upward, so that the cable 7 continuously applies a uniform clamping force to the multi-layer vibration-damping plate 6. This structure achieves adjustable and controllable tensioning force of the cable 7 through threaded transmission. The clamping force of the vibration-damping plate 6 can be dynamically adjusted according to the vibration amplitude during motor operation, ensuring that the vibration energy of the housing 1 can be fully absorbed and attenuated through the elastic deformation of the vibration-damping plate 6. At the same time, it avoids the reduction of the vibration-damping effect caused by the relaxation of the cable 7, thereby improving the stability and reliability of the vibration-damping unit in long-term operation.

[0056] Reference Figure 4 Multiple cables 7 are arranged at an angle, and the corresponding through-hole terminals 8 maintain the same inclination as the cables 7, together forming an angled force transmission path. This inclined design effectively blocks the linear transmission path of the housing 1 vibration to the connecting plate 5 by changing the direction of vibration transmission. When the motor operation causes the housing 1 to vibrate, the inclined cables 7 force the vibration energy to pass through the tortuous path of multiple vibration-damping plates 6 before it can be transmitted to the connecting plate 5, rather than directly through a rigid connection. Because the vibration-damping plates 6 are made of elastic materials such as rubber, their elastic modulus is much lower than that of metal cables 7. When passing through the vibration-damping plates 6, a large amount of vibration energy is converted into internal energy consumption, thereby significantly reducing the vibration intensity transmitted to the connecting plate 5. In addition, the inclination angle of the cables 7 also creates horizontal and vertical force components, so that the vibration-damping plates 6 are subjected to a certain amount of tangential stress while being subjected to the axial clamping force. This composite stress state further enhances the damping effect of the vibration-damping plates 6 on vibrations of different frequencies, forming a multi-angle and multi-dimensional vibration attenuation mechanism, ensuring that the majority of the vibration energy of the housing 1 is absorbed by the vibration-damping plates 6, effectively improving the vibration and noise reduction performance of the entire motor system.

[0057] Reference Figure 4The lower end of the cable 7 is provided with a snap-fitting end 11 that matches the snap-fitting hole 12 on the upper end face of the housing 1. The snap-fitting end 11 is firmly connected to the housing 1 through an embedded structure. Specifically, the outer contour of the snap-fitting end 11 matches the inner wall shape of the snap-fitting hole 12, and a hemispherical, barbed or stepped structural design can be adopted to ensure that axial separation or circumferential rotation is not likely to occur after snap-fitting. When the cable 7 is installed, the snap-fitting end 11 is directly embedded in the snap-fitting hole 12 of the housing 1 to form a mechanical locking structure, which can achieve a reliable connection between the cable 7 and the housing 1 without the need for additional fasteners. This snap-fitting design not only simplifies the assembly process, but also, when the cable 7 is subjected to an upward tensioning force, the tension can be evenly transmitted to the housing 1 through the contact surface between the snap-fitting end 11 and the snap-fitting hole 12, thereby avoiding local stress concentration. At the same time, the precise fit between the engaging end 11 and the engaging hole 12 can position the tilt angle of the cable 7, ensuring the consistency of the tilt directions of the multiple cables 7, thereby ensuring the overall force balance of the housing vibration isolation unit.

[0058] Reference Figure 3 and Figure 7-10 The anti-vibration plate 6 adopts a composite structure design, which is composed of an inlaid layer and a non-inlaid layer alternately stacked to form a periodic vibration control structure. A plurality of positioning holes 13 are opened in the inlaid layer along the circumferential direction. These positioning holes 13 are evenly distributed in a double-ring array to provide precise installation sites for the resonant component 14. Each resonant component 14 is composed of a high-density metal ball 17 wrapped in a silicone sleeve 15 that can be separated in half. There is a ball hole 16 matching the metal ball 17 at the center of the silicone sleeve 15. The silicone sleeve 15 not only fixes the metal ball 17, but also adjusts the vibration response frequency of the metal ball 17 through its own elastic deformation. When the vibration generated by the motor operation is transmitted to the anti-vibration plate 6, the resonant component 14 in the inlaid layer is excited to produce local resonance. Its vibration frequency forms a band gap effect with the external vibration frequency, that is, the vibration energy in a specific frequency range is strongly scattered and absorbed and cannot be effectively transmitted. At the same time, the high density characteristics of the metal ball 17 cause it to generate secondary waves with opposite phase to the original vibration wave during the vibration process, and achieve active cancellation through the interference principle of waves, further weakening the vibration energy. This intelligent vibration reduction structure composed of a periodic inlaid layer and a resonant component 14 adds a frequency selective filtering function to the vibration damping plate 6 on the basis of traditional elastic damping, and can perform targeted suppression on the dominant vibration frequency under specific working conditions of the motor, significantly improving the attenuation ability of the vibration damping unit for broadband vibration, ensuring that the vibration of the housing 1 is dissipated and blocked to the maximum extent when passing through the vibration damping plate 6, and effectively reducing the transmission of vibration to the connecting plate 5 and the entire machine.

[0059] Reference Figure 3The positioning holes 13 in adjacent inlaid layers are designed with a mutually offset layout, that is, the arrays of positioning holes 13 in the upper and lower inlaid layers are asymmetrically staggered in the circumferential direction. This structure causes a phase difference in the spatial position of the resonant components 14 in different layers. When the vibration wave is transmitted to the vibration-stopping plate 6, the vibration response of the upper resonant component 14 due to the offset of the positioning holes 13 forms an anti-phase force with the lower resonant component 14, just like two groups of vibration sources releasing energy at different phases, thereby causing the destruction of coherent superposition on the vibration propagation path. Specifically, when a vibration wave of a certain frequency propagates in the vibration-stopping plate 6, if the positioning holes 13 of the adjacent resonant components 14 are not offset, the vibration energy may form a standing wave due to the same-phase superposition, resulting in an abnormal increase in the local vibration amplitude. However, through the offset design of the positioning holes 13, the secondary waves excited by the resonant components 14 in different layers cancel each other out in phase, effectively suppressing the formation conditions of the standing wave (i.e., the same-phase superposition of the incident wave and the reflected wave).

[0060] Reference Figure 11 A limiting ring 18 is provided on the outer wall of the silicone sleeve 15 .

[0061] The limiting ring 18 is provided to limit the silicone sleeve 15 .

[0062] Reference Figure 3 and Figure 6 , two groups of rotor vibration-isolating units symmetrically distributed at the upper and lower ends are provided on the outer shell 1, and the unit realizes efficient attenuation of the vibration of the main shaft 4 through a multi-level structure. Specifically, the rotor vibration-isolating unit includes a vibration-isolating groove 19 opened on the inner wall of the outer shell 1, and a ring 21 is assembled on the outside of the bearing 20 mounted on the main shaft 4. A plurality of vortex plates 22 are arranged on the outer periphery of the ring 21 in the form of an equidistant circular array, and the damping plate 23 connected to the outer end thereof fits tightly with the inner wall of the vibration-isolating groove 19. Among them, the vortex plate 22 adopts an Archimedean spiral configuration. This curve design makes the vibration generated by the rotation of the main shaft 4 gradually diffuse along the spiral path of the vortex plate 22 after being transmitted to the ring 21 through the bearing 20 - the vibration energy is scattered in the spiral structure due to the continuous change of the propagation direction. At the same time, the geometric characteristics of the spiral can convert the concentrated vibration into a dispersion force along the tangential direction, thereby weakening the intensity of the vibration. The close fit between the damping plate 23 and the anti-vibration groove 19 further dissipates vibration energy through the viscoelastic deformation and friction effect of the material. When the vibration transmitted by the vortex plate 22 acts on the damping plate 23, the contact surface between the damping plate 23 and the anti-vibration groove 19 will produce shear deformation, converting the mechanical vibration energy into heat energy dissipation, thereby blocking the transmission path of the vibration to the housing 1. The two sets of symmetrically arranged anti-vibration units can simultaneously suppress the vibration of the upper and lower ends of the main shaft 4, forming a two-way vibration reduction system. In particular, for the axial and radial composite vibration caused by rotor eccentricity or high-speed rotation, the spiral dissipation of the vortex plate 22 and the energy dissipation of the damping plate 23 achieve the coordinated attenuation of multi-dimensional vibration.

[0063] Reference Figure 3 The inner shell 24 is provided inside the outer shell 1, and a sandwich is formed between the outer shell 1 and the inner shell 24. The inner shell 24 is provided with heat dissipation holes 25, and the heat dissipation holes 25 are connected to the sandwich. By setting up a double-layer shell, the noise is shielded.

[0064] The working principle of this embodiment is as follows:

[0065] Through the casing vibration isolation unit and the rotor vibration isolation unit, the vibration generated by the rotation of the permanent magnet rotor 3 of the motor is subjected to two-stage vibration isolation. The first stage is the rotor vibration isolation unit, which transmits the vibration of the main shaft 4 to the ring 21 through the bearing 20, and then to the damping plate 23 through multiple vortex plates 22, and finally acts on the casing 1. The vortex plate 22 adopts an Archimedean spiral, which has a dissipating effect on the vibration of the main shaft 4. Then, through the damping plate 23, part of the vibration transmitted to the casing 1 by the main shaft 4 can be filtered out. The second stage is the casing vibration isolation unit, which connects the connecting plate 5 in the food processor and the casing 1 through the vibration isolation plate 6, and is tightened by multiple cables 7, so that most of the vibration of the casing 1 is filtered out by the vibration isolation plate 6, thereby reducing the vibration of the casing 1 transmitted to the food processor; at the same time, by arranging an inlaid layer at intervals in the vibration isolation plate 6 and inlaying a resonant component 14 in the layer, the resonant component 14 is embedded in the flexible vibration isolation plate 6 to achieve vibration blocking, and the band gap effect and active wave offset are generated through local resonance.

[0066] Example 2

[0067] Reference Figure 12-14 The second embodiment of the present invention provides an energy-saving food processor, comprising a permanent magnet starter motor, a plastic housing 26, a cooking pot 27 mounted on the plastic housing 26, a kneading rod 28 disposed within the cooking pot 27, and a transmission unit 29 disposed within the plastic housing 26; the transmission unit 29 provides a transmission connection between the main shaft 4 and the kneading rod 28. This food processor achieves low power loss, low heat generation, and low noise through the precise matching of the permanent magnet motor's high efficiency (saving over 30% more energy than traditional asynchronous motors) and the transmission unit 29. Its modular design facilitates maintenance and replacement of components, meeting the diverse needs of both home and commercial kitchens.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A permanent magnet starter motor comprising a housing (1), a stator (2) disposed within the housing (1), a permanent magnet rotor (3) rotatably disposed within the stator (2), and a main shaft (4) disposed on the permanent magnet rotor (3), characterized in that: A housing vibration-isolating unit is provided on the housing (1); The housing vibration-isolating unit comprises a connecting plate (5) arranged above the housing (1); a plurality of vibration-isolating plates (6) are arranged between the connecting plate (5) and the upper end surface of the housing (1); a plurality of cables (7) are arranged in an annular pattern at equal intervals between the housing (1) and the connecting plate (5); each cable (7) passes through the plurality of vibration-isolating plates (6) and is used to clamp the plurality of vibration-isolating plates (6) between the connecting plate (5) and the housing (1); The anti-vibration plate (6) includes an inlaid layer and a non-inlaid layer, the inlaid layer and the non-inlaid layer are spaced apart, a plurality of positioning holes (13) are provided in the inlaid layer, a resonance component (14) is filled in the positioning holes (13), the resonance component (14) includes a silicone sleeve (15) that can be separated in half, a ball hole (16) is provided at the center of the silicone sleeve (15), and a metal ball (17) is embedded in the ball hole (16); The housing (1) is provided with rotor vibration-isolating units, and two groups of rotor vibration-isolating units are provided and symmetrically distributed at the upper end and the lower end of the housing (1); The rotor vibration isolation unit comprises a vibration isolation groove (19) arranged on a housing (1), a bearing (20) sleeved on a main shaft (4), a circular ring (21) sleeved on the outside of the bearing (20), a plurality of vortex plates (22) arranged in an annular shape at equal intervals outside the circular ring (21), a damping plate (23) provided at the outer end of the vortex plate (22), and the damping plate (23) in close contact with the vibration isolation groove (19).

2. The permanent magnet starter motor according to claim 1, characterized in that: A threading terminal (8) is provided at a location on the upper end surface of the connecting plate (5) corresponding to the cable (7), and the cable (7) passes through the threading terminal (8). A threaded head (9) is provided at the upper end of the cable (7), and a tightening nut (10) is provided on the threaded head (9), and the tightening nut (10) is in close contact with the upper end surface of the threading terminal (8).

3. The permanent magnet starter motor according to claim 2, characterized in that: The plurality of cables (7) are arranged obliquely, and the corresponding threading terminals (8) are in the same direction as the cables (7).

4. The permanent magnet starter motor according to claim 1, characterized in that: The lower end of the pull rope (7) is provided with a snap-fit ​​end (11), the upper end surface of the housing (1) is provided with a snap-fit ​​hole (12), and the snap-fit ​​end (11) is snap-fitted in the snap-fit ​​hole (12).

5. The permanent magnet starter motor according to claim 1, characterized in that: The positioning holes (13) in adjacent inlaid layers are offset from each other.

6. The permanent magnet starter motor according to claim 1, characterized in that: A limiting ring (18) is provided on the outer wall of the silicone sleeve (15).

7. The permanent magnet starter motor according to claim 1, characterized in that: An inner shell (24) is provided inside the outer shell (1), a sandwich is formed between the outer shell (1) and the inner shell (24), and heat dissipation holes (25) are provided on the inner shell (24), and the heat dissipation holes (25) are connected to the sandwich.

8. An energy-saving food processor, comprising the permanent magnet starter motor according to claim 1, characterized in that: The invention also includes a plastic shell (26), a cooking pot (27) arranged on the plastic shell (26), a dough kneading rod (28) arranged in the cooking pot (27), and a transmission unit (29) arranged in the plastic shell (26); the transmission unit (29) is connected to the main shaft (4) and the dough kneading rod (28).

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