Kitchen waste processor adopting non-inductive permanent magnet synchronous waterproof motor

Abstract

The utility model relates to a kitchen garbage disposer adopting a non-inductive permanent magnet synchronous waterproof motor, which comprises a permanent magnet motor, a cylinder seat and a cylinder body, the cylinder body is provided with a kitchen garbage inlet, an automatic water inlet and a crushed slag outlet, and the permanent magnet motor is provided with a rotating shaft in a driving manner and comprises a motor casing. An upper oil seal and a lower oil seal are arranged between the interior of the motor shell and the rotating shaft, liquid grease is arranged between the upper oil seal and the lower oil seal, a rotating disc and a first-stage moving cutter are installed on the rotating shaft, a fixed disc opposite to the rotating disc is arranged in the barrel, a fixed blade is arranged on the inner wall of the fixed disc, and a second-stage cutter hammer is arranged on the rotating disc. The second-stage knife hammer is matched with the fixed blade to conduct relative smashing, a third-stage fine knife is arranged on the outer ring of the fixed disc, and the third-stage fine knife is matched with the rotating disc to conduct relative smashing. The kitchen garbage crushing device has a fine crushing effect on kitchen garbage, ensures normal discharge, has good dustproof, waterproof and impurity-preventing functions, and improves the stability of the permanent magnet motor.

Description

Technical Field

[0001] This utility model relates to the field of kitchen waste treatment technology, and in particular to a kitchen waste processor that uses a sensorless permanent magnet synchronous waterproof motor. Background Technology

[0002] Food waste disposal is currently one of the more challenging aspects of waste resource utilization. From collection and storage to transportation and processing, it faces various difficulties, causing inconvenience to users in their daily lives. Food waste disposers offer a way to reduce this inconvenience. A food waste disposer is a modern, environmentally friendly kitchen appliance that provides a new method for processing food waste. It is primarily used for pulverizing food waste and is installed under the kitchen sink, connected to the drain pipe. After pulverizing, the waste is discharged into the sewer, eliminating the hassle of cleaning up food waste.

[0003] Existing food waste disposers all utilize a motor-driven blade to pulverize food waste during operation. Since food waste disposers are installed under the kitchen sink in a humid environment, they are prone to water splashes and condensation. If the motor is not waterproof, water entering the motor can cause short circuits, damage the motor, and even lead to safety accidents. Therefore, the waterproof design of the motor in food waste disposers is crucial and needs to be improved. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a food waste disposer that uses a sensorless permanent magnet synchronous waterproof motor. This structure has a good waterproof design and can ensure that food waste is thoroughly crushed.

[0005] This utility model achieves the above-mentioned objectives through the following technical solution: a food waste disposer using a sensorless permanent magnet synchronous waterproof motor, comprising a permanent magnet motor, a cylinder base, and a cylinder body. The cylinder body is provided with a food waste inlet, an automatic water inlet, and a pulverized residue outlet. The permanent magnet motor is driven by a rotating shaft. The permanent magnet motor includes a motor housing. An upper oil seal and a lower oil seal are provided between the interior of the motor housing and the rotating shaft. Liquid grease is provided between the upper and lower oil seals. A rotating disc and a primary moving blade are mounted on the rotating shaft. A fixed disc is provided inside the cylinder body opposite to the rotating disc. Fixed blades are provided on the inner wall of the fixed disc. A secondary hammer blade is provided on the rotating disc. The secondary hammer blade works in conjunction with the fixed blades to perform relative pulverization. A tertiary fine blade is provided on the outer ring of the fixed disc. The tertiary fine blade works in conjunction with the rotating disc to perform relative pulverization.

[0006] Preferably, the permanent magnet motor is internally equipped with a stator, a rotor, and a permanent magnet motor power supply line.

[0007] Preferably, the cylinder base is provided with flange I, the cylinder body is provided with flange II, and flange I and flange II are provided with corresponding bolt holes.

[0008] Preferably, the upper and lower oil seals are made of fluororubber, the upper and lower oil seals are press-fitted, and the surfaces of the upper and lower oil seals are coated with grease.

[0009] Preferably, the end of the rotating shaft is provided with a threaded post, the primary moving tool is mounted on the threaded post, and a locking nut is provided on the threaded post.

[0010] Preferably, an impeller assembly is provided at the bottom of the rotating disk, and bolts that are fixed relative to the rotating disk are installed on the impeller assembly. A cavity communicating with the crushed slag discharge outlet is provided between the rotating disk and the cylinder seat. A slope is provided inside the cylinder seat. An inclined surface corresponding to the slope is provided at the bottom of the impeller assembly. The impeller assembly performs centrifugal rotation around the rotating shaft.

[0011] Preferably, the fixing plate has a plurality of vertical holes arranged in a ring.

[0012] Preferably, the end of the secondary hammer is provided with an outer port groove, and the secondary hammer forms a crushing action with the fixed blade when rotating.

[0013] Preferably, a crushing gap is provided between the three-stage fine blade and the rotating disk, and a notch is provided on the outer end of the rotating disk. The beneficial effects of this utility model are: the structure of this utility model is scientifically and rationally designed. First, kitchen waste enters through the kitchen waste inlet, falling into the cavity formed by the rotating disk and the cylinder. Then, the permanent magnet motor is started, driving the rotating shaft to rotate. Since the rotating disk and the first-stage moving blade are mounted on the rotating shaft, and the rotating disk is equipped with a second-stage hammer, the rotating disk, the first-stage moving blade, and the second-stage hammer rotate synchronously. Under the rotational cutting of the first-stage moving blade and the second-stage hammer, the kitchen waste can be initially cut. Utilizing the principle of centrifugal rotation, the kitchen waste is concentrated on the inner wall of the cylinder. Next, the second-stage hammer, in conjunction with the fixed blade, crushes the waste. Then, the kitchen waste enters the gap between the three-stage fine blade and the rotating disk, where the three-stage fine blade, in conjunction with the rotating disk, performs relative crushing. Finally, it enters the... The pulverized waste is discharged through the pulverized residue outlet. After multiple stages of pulverization, the pulverization effect on kitchen waste is quite fine, ensuring normal discharge. The automatic water inlet also assists in the operation, and the interior can be rinsed and cleaned after use. The entire synchronous pulverization process has high efficiency. The motor housing is equipped with upper and lower oil seals between the motor housing and the rotating shaft, which have good dustproof, waterproof and impurity prevention functions, protecting the bearings and internal mechanical parts for normal operation and improving the stability of the permanent magnet motor. Liquid grease is placed between the upper and lower oil seals. The liquid grease has the property of sufficient lubrication between the oil seals and the shaft, and at the same time, it transfers and dissipates the heat generated by the friction between the upper and lower oil seals and the rotating shaft, preventing water leakage due to overheating of the upper and lower oil seals. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the installation of the permanent magnet motor and the cylinder base of this utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the rotating disk and the fixed disk of this utility model;

[0018] In the diagram: 1. Permanent magnet motor; 2. Cylinder base; 3. Cylinder body; 4. Kitchen waste inlet; 5. Automatic water inlet; 6. Crushed residue outlet; 7. Rotating shaft; 8. Motor housing; 9. Upper oil seal; 10. Lower oil seal; 11. Liquid grease; 12. Rotating disc; 13. First-stage moving blade; 14. Fixed disc; 15. Fixed blade; 16. Second-stage hammer blade; 17. Third-stage fine blade; 18. Stator; 19. Rotor; 20. Permanent magnet motor power cord; 21. Flange I; 22. Flange II; 23. Bolt hole; 24. Threaded post; 25. Locking nut; 26. Impeller assembly; 27. Bolt; 28. Cavity; 29. ​​Sloping section; 30. Inclined surface; 31. Vertical hole; 32. Outer port groove; 33. Crushing gap; 34. Notch. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4As shown, a food waste disposer using a sensorless permanent magnet synchronous waterproof motor includes a permanent magnet motor 1, a cylinder base 2, and a cylinder 3. The cylinder 3 is provided with a food waste inlet 4, an automatic water inlet 5, and a pulverized residue outlet 6. The permanent magnet motor 1 is driven by a rotating shaft 7. The permanent magnet motor 1 includes a motor housing 8. An upper oil seal 9 and a lower oil seal 10 are provided between the inside of the motor housing 8 and the rotating shaft 7. Liquid grease 11 is provided between the upper oil seal 9 and the lower oil seal 10. A rotating disk 12 and a primary moving blade 13 are installed on the rotating shaft 7. A fixed disk 14 is provided inside the cylinder 3, opposite to the rotating disk 12. Fixed blades 15 are provided on the inner wall of the fixed disk 14. A secondary hammer blade 16 is provided on the rotating disk 12. The secondary hammer blade 16 works with the fixed blades 15 to perform relative pulverization. A tertiary fine blade 17 is provided on the outer ring of the fixed disk 14. The tertiary fine blade 17 works with the rotating disk 12 to perform relative pulverization. This utility model has a scientifically sound and reasonable structure. In use, kitchen waste is first introduced through the kitchen waste inlet 4, falling into the cavity formed by the rotating disc 12 and the cylinder 3. Then, the permanent magnet motor 1 is started, driving the rotating shaft 7 to rotate. Since the rotating disc 12 and the primary moving blade 13 are mounted on the rotating shaft 7, and the rotating disc 12 is equipped with a secondary hammer blade 16, the rotating disc 12, primary moving blade 13, and secondary hammer blade 16 rotate synchronously. Under the rotational cutting of the primary moving blade 13 and secondary hammer blade 16, the kitchen waste is initially cut. Utilizing the principle of centrifugal rotation, the kitchen waste is concentrated on the inner wall of the cylinder 3. Next, the secondary hammer blade 16, in conjunction with the fixed blade 15, performs pulverization. Then, the kitchen waste enters the gap between the tertiary fine blade 17 and the rotating disc 12, where the tertiary fine blade 17, in conjunction with the rotating disc 12, performs relative pulverization. Finally, the waste enters the pulverized residue discharge outlet 6 and is discharged. After multiple stages of pulverization, the pulverization effect of kitchen waste is relatively fine, ensuring normal discharge. The automatic water inlet 5 also helps to propel the waste during use, and the interior can be rinsed and cleaned after use. The entire synchronous pulverization process is highly efficient. An upper oil seal 9 and a lower oil seal 10 are provided between the motor housing 8 and the rotating shaft 7. These seals have good dustproof, waterproof and impurity prevention functions, protecting the bearings and internal mechanical parts and improving the stability of the permanent magnet motor 1. A liquid grease 11 is provided between the upper oil seal 9 and the lower oil seal 10. The liquid grease 11 has the flow properties to fully lubricate the oil seal and the shaft, and at the same time transfers and dissipates the heat generated by the friction between the upper oil seal 9 and the lower oil seal 10 and the rotating shaft 7, preventing the upper oil seal 9 and the lower oil seal 10 from overheating due to friction and causing water leakage.

[0021] Specifically, the cylinder 3 has a structure where the upper end gradually increases in size. The motor housing 8 and the cylinder base 2 are connected by bolts for easy disassembly and assembly. The permanent magnet motor 1 has higher efficiency across the entire load range, especially at low speeds where the efficiency curve is flatter, resulting in significant energy savings (20%-38%). Its power factor can reach over 0.9, requiring no additional capacitor compensation and supporting energy recovery. The permanent magnet motor 1 has significant advantages in energy efficiency, starting torque, power density, and control performance, and is controlled by a dedicated controller and powered by a dedicated kitchen power outlet.

[0022] As a technical optimization of this utility model, the permanent magnet motor 1 is internally provided with a stator 18, a rotor 19 and a permanent magnet motor power line 20.

[0023] In this embodiment, the stator 18 and the rotor 19 achieve energy conversion through electromagnetic interaction. The stator generates a rotating magnetic field, and the permanent magnet on the rotor 19 interacts with the magnetic field of the stator 18 to generate torque, driving the rotor 19 to rotate. The rotor is powered by the permanent magnet motor power line 20.

[0024] As a technical optimization of this utility model, a flange I21 is provided on the cylinder base 2, and a flange II22 is provided on the cylinder body 3. Bolt holes 23 corresponding to each other are provided on flange I21 and flange II22.

[0025] In this embodiment, a detachable fixed installation structure can be achieved by installing bolts that are relatively fixed to flanges I21 and II22 on bolt holes 23, which makes installation relatively simple.

[0026] As a technical optimization of this utility model, the upper oil seal 9 and the lower oil seal 10 are made of fluororubber, the upper oil seal 9 and the lower oil seal 10 are fitted with interference fit, and the surfaces of the upper oil seal 9 and the lower oil seal 10 are coated with grease.

[0027] In this embodiment, fluororubber is used, which has strong high-temperature stability, small high-temperature deformation, oil resistance, corrosion resistance, wear resistance, tear resistance, excellent sealing performance, oxidation resistance, aging resistance, and environmental safety. The upper oil seal 9 and the lower oil seal 10 adopt an interference fit, which makes the installation relatively stable. Moreover, the surface is coated with grease to achieve better lubrication performance, waterproof sealing performance, and durability. As a technical optimization of this utility model, the end of the rotating shaft 7 is provided with a threaded post 24, the first-stage moving knife 13 is fitted on the threaded post 24, and a locking nut 25 is provided on the threaded post 24.

[0028] In this embodiment, a threaded post 24 is used, and a locking nut 25 is threadedly connected to the threaded post 24. The first-stage moving tool 13 is mounted on the threaded post 24. The above structure can provide better limiting and installation performance for the first-stage moving tool 13.

[0029] As a technical optimization of this utility model, an impeller assembly 26 is provided at the bottom of the rotating disk 12. Bolts 27 that are fixed relative to the rotating disk 12 are installed on the impeller assembly 26. A cavity 28 that communicates with the crushed slag discharge outlet 6 is provided between the rotating disk 12 and the cylinder seat 2. A slope 29 is provided inside the cylinder seat 2. An inclined surface 30 corresponding to the slope 29 is provided at the bottom of the impeller assembly 26. The impeller assembly 26 performs centrifugal rotation around the rotating shaft 7.

[0030] In this embodiment, the cylinder base 2 is provided with a ramp 29 inside, and the bottom of the impeller assembly 26 is provided with an inclined surface 30 corresponding to the ramp 29. The impeller assembly 26 rotates centrifugally around the rotating shaft. The synchronous rotation of the impeller assembly 26 makes the entire cavity 28 in a suction state. By utilizing the suction working principle of the centrifugal pump, suction can be performed so that the crushed residue is sucked out along with the liquid to the crushed residue discharge outlet 6, which has the function of assisting discharge.

[0031] As a technical optimization of this utility model, the fixed plate 14 is provided with a plurality of vertical holes 31 arranged in a ring.

[0032] In this embodiment, the vertical hole 31 is used for kitchen waste that has met certain standards to flow downwards so that it can be cut in one step.

[0033] As a technical optimization of this utility model, the end of the secondary hammer 16 is provided with an outer port groove 32, and the secondary hammer 16 forms a crushing action with the fixed blade 15 when rotating.

[0034] In this embodiment, the relative rotation of the secondary hammer 16 and the fixed blade 15, along with the repeated cutting by the fixed blade 15 and the outer port groove 32, achieves a fine crushing effect.

[0035] Preferably, a crushing gap 33 is provided between the three-stage fine blade 17 and the rotating disk 12, and a notch 34 is provided on the outer end of the rotating disk 12. In this embodiment, the crushing gap 33 can be specifically designed according to the required crushing particles. The notch is used to guide the output outward from the crushing gap 33, and the notch 34 is used to guide the output to the crushed slag discharge outlet 6.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A food waste disposer employing a sensorless permanent magnet synchronous waterproof motor, characterized in that: The system includes a permanent magnet motor (1), a cylinder base (2), and a cylinder body (3). The cylinder body (3) is provided with a kitchen waste inlet (4), an automatic water inlet (5), and a pulverized residue outlet (6). The permanent magnet motor (1) is driven by a rotating shaft (7). The permanent magnet motor (1) includes a motor housing (8). An upper oil seal (9) and a lower oil seal (10) are provided between the interior of the motor housing (8) and the rotating shaft (7). Liquid grease (11) is provided between the upper oil seal (9) and the lower oil seal (10). The rotating shaft (7) The cylinder (3) is equipped with a rotating disk (12) and a primary moving blade (13). Inside the cylinder (3) is a fixed disk (14) opposite to the rotating disk (12). The inner wall of the fixed disk (14) is provided with a fixed blade (15). The rotating disk (12) is provided with a secondary hammer (16). The secondary hammer (16) works with the fixed blade (15) to perform relative crushing. The outer ring of the fixed disk (14) is provided with a tertiary fine blade (17). The tertiary fine blade (17) works with the rotating disk (12) to perform relative crushing.

2. A food waste disposer using a sensorless permanent magnet synchronous waterproof motor according to claim 1, characterized in that: The permanent magnet motor (1) is internally equipped with a stator (18), a rotor (19), and a permanent magnet motor power line (20).

3. A kitchen waste disposer using a sensorless permanent magnet synchronous waterproof motor according to claim 1, characterized in that: The cylinder base (2) is provided with flange I (21), and the cylinder body (3) is provided with flange II (22). Flange I (21) and flange II (22) are provided with corresponding bolt holes (23).

4. A kitchen waste disposer using a sensorless permanent magnet synchronous waterproof motor according to claim 1, characterized in that: The upper oil seal (9) and the lower oil seal (10) are made of fluororubber. The upper oil seal (9) and the lower oil seal (10) are fitted with an interference fit. The surfaces of the upper oil seal (9) and the lower oil seal (10) are coated with grease.

5. A kitchen waste disposer using a sensorless permanent magnet synchronous waterproof motor according to claim 1, characterized in that: The end of the rotating shaft (7) is provided with a threaded post (24), the first-stage moving knife (13) is fitted on the threaded post (24), and a locking nut (25) is provided on the threaded post (24).

6. A kitchen waste disposer using a sensorless permanent magnet synchronous waterproof motor according to claim 1, characterized in that: The bottom of the rotating disk (12) is provided with an impeller assembly (26), and the impeller assembly (26) is equipped with bolts (27) that are fixed relative to the rotating disk (12). A cavity (28) communicating with the crushed slag discharge outlet (6) is provided between the rotating disk (12) and the cylinder seat (2). The inside of the cylinder seat (2) is provided with a ramp (29), and the bottom of the impeller assembly (26) is provided with an inclined surface (30) corresponding to the ramp (29). The impeller assembly (26) performs centrifugal rotation around the rotating shaft (7).

7. A kitchen waste disposer using a sensorless permanent magnet synchronous waterproof motor according to claim 1, characterized in that: The fixed plate (14) is provided with a number of vertical holes (31) arranged in a ring.

8. A kitchen waste disposer using a sensorless permanent magnet synchronous waterproof motor according to claim 1, characterized in that: The end of the secondary hammer (16) is provided with an outer port groove (32), and the secondary hammer (16) forms a crushing action with the fixed blade (15) when rotating.

9. A kitchen waste disposer using a sensorless permanent magnet synchronous waterproof motor according to claim 1, characterized in that: A crushing gap (33) is provided between the three-stage fine blade (17) and the rotating disk (12), and a notch (34) is provided on the outer end of the rotating disk (12).

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