A dual-motor driving mechanism and food waste disposer

Abstract

The present invention provides a dual-motor drive mechanism, which belongs to the technical field of food waste treatment equipment and includes: a motor housing; a lower motor module is arranged in the motor housing; an upper motor module is arranged in the motor housing; a rotating shaft is connected to the upper motor module and the lower motor module. A food waste disposer is also provided, including: a mounting seat is fixedly connected to the motor housing, and the rotating shaft passes through the mounting seat; a grinding disc is arranged in the mounting seat, the grinding disc is connected to the rotating shaft, and the upper rotor drives the grinding disc to rotate through the rotating shaft, and when the rotation speed of the grinding disc decreases, the lower rotor rotates, so that the upper rotor and the lower rotor drive the rotating shaft to rotate at the same time; the beneficial effects of the present invention are: the drive mechanism is driven by one motor during normal operation, and when a larger torque is required, it is driven by two motors, and the food waste disposer only needs one motor to drive it at ordinary times, and when harder garbage such as bones is crushed, the second motor starts automatically.

Description

Technical Field

[0001] The present invention belongs to the technical field of food waste treatment equipment, relates to a dual-motor driving mechanism, and also provides a food waste treatment machine with the dual-motor driving mechanism. Background Art

[0002] Food waste disposer is a device that crushes the food waste thrown into it and then discharges it into the sewer. With the increase of residents' environmental awareness and higher pursuit of living environment, the development prospect of food waste disposer will be very broad. The motor is the driving mechanism in the food waste disposer, which can drive the food waste disposer to crush the food waste.

[0003] For example, a Chinese patent application numbered 201610821071.7 discloses an intelligent food waste disposer applied in the field of daily necessities technology. The intelligent food waste disposer is installed below a vegetable washing sink. A grinding ring (3) and a cutter disc (4) are installed in a crushing chamber (1) of the intelligent food waste disposer. A reamer (5) is installed on the cutter disc (4). The vegetable washing sink is connected to the crushing chamber (1) via a connecting component (6). A motor shaft (7) of a brushless DC motor (2) extends into the crushing chamber (1) and is connected to the cutter disc (4). The brushless DC motor (2) is connected to a control component (8) capable of starting and stopping the brushless DC motor (2) and controlling the speed and torque.

[0004] The above-mentioned food waste disposal equipment contains a permanent magnet brushless motor, and the size of the permanent magnet brushless motor has certain standards, and the rotation speed also has certain standards. Specifically, the size of the motor mainly includes the diameter and length of the motor. There is an optimal ratio between the diameter and length of the motor, so that the best efficiency can be achieved. Motors of appropriate sizes are required in specific applications. For example, in food waste disposers, appropriate motors are required, and the rotation speed required for food waste disposers is generally maintained at around 3000-3300 rpm. If the size of the motor is not appropriate, resulting in the motor speed being too fast, the service life of the motor will be reduced, and a lot of noise will be caused. The motor is also easy to burn out. If the motor speed is relatively slow, it will not be able to crush food waste.

[0005] Based on the above reasons, in order to crush general food waste, the motors generally used in existing food waste disposers can meet the actual power required, but once they encounter hard objects, they cannot be crushed. If a high-power and large-size motor is used, although it can crush hard objects, when the large-size and high-power motor is running under normal circumstances, due to the very fast speed, it is very noisy and generates heat very quickly. The most important thing is that under normal circumstances, such a large power is not needed, which will cause waste, and its efficiency is also very low, so it has no practical significance.

[0006] Therefore, although the existing motors can meet the needs under appropriate conditions, they cannot meet the requirements once greater torque is needed. In addition, if a high-power and large-sized motor is set up to meet the maximum torque demand, then under appropriate circumstances, it will have the disadvantages of low efficiency, too fast speed, reduced service life, excessive noise and too fast heat generation.

[0007] In addition, in a food waste disposer, because the motor needs to meet the optimal size, its power can only be used to crush general food waste, so that it can achieve the best efficiency. However, when encountering hard objects such as bones, it is unable to provide additional power to crush the hard objects. If a high-power and large-sized motor is used, although it can crush hard objects, when processing general food waste, due to its large size and fast speed, it will cause low efficiency, easy heat generation, excessive noise and short life. Summary of the invention

[0008] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a dual-motor drive mechanism and a food waste disposer.

[0009] The purpose of the present invention can be achieved through the following technical solutions: A dual-motor drive mechanism, comprising:

[0010] Motor housing;

[0011] a lower motor module, which is disposed in the motor housing;

[0012] An upper motor module, which is disposed in the motor housing and is located above the lower motor module;

[0013] The rotating shaft is connected to the upper motor module and the lower motor module. The upper motor module drives the rotating shaft to rotate. When the rotating speed of the rotating shaft decreases, the lower motor module and the upper motor module work simultaneously and drive the rotating shaft to rotate.

[0014] Preferably, the lower motor module includes a lower stator and a lower rotor, the lower stator is arranged in the motor housing, and the lower rotor is arranged in the lower stator; the upper motor module includes an upper stator and an upper rotor, the upper stator is arranged in the motor housing, and the upper stator is located above the lower stator, the upper rotor is arranged in the upper stator, the lower rotor is arranged coaxially with the upper rotor, and the rotating shaft passes through the lower rotor and the upper rotor.

[0015] Preferably, the motor housing is provided with an upper wire hole and a lower wire hole, the upper stator is provided with an upper wire, the upper wire passes through the upper wire hole, and the lower stator is provided with a lower wire, the lower wire passes through the lower wire hole.

[0016] Preferably, the dual-motor drive mechanism further includes a controller, the upper stator is provided with a Hall sensor, the Hall sensor is electrically connected to the controller, and the controller senses the rotation speed of the upper rotor through the Hall sensor.

[0017] Preferably, the controller is electrically connected to the lower stator, and the controller senses through the Hall sensor that the speed of the upper rotor has decreased, thereby causing the lower rotor to rotate, and drives the shaft to rotate simultaneously through the upper rotor and the lower rotor.

[0018] Preferably, a liner is provided in the motor housing, and the liner is provided between the upper stator and the lower stator, so that the upper stator is connected to the lower stator through the liner.

[0019] Secondly, a food waste disposer is also provided, comprising:

[0020] A mounting seat, which is fixedly connected to the motor housing, and the rotating shaft passes through the mounting seat;

[0021] The grinding disc is arranged in the mounting seat, the grinding disc is connected to the rotating shaft, and the upper rotor drives the grinding disc to rotate through the rotating shaft. When the rotation speed of the grinding disc decreases, the lower rotor rotates, so that the upper rotor and the lower rotor drive the rotating shaft to rotate at the same time.

[0022] Preferably, the grinding disc is provided with a grinding hammer, knife teeth and a discharge hole. When the grinding disc rotates, the knife teeth and the grinding hammer crush the food waste, and the crushed food is discharged into the mounting seat through the discharge hole.

[0023] Preferably, a mounting hole is provided on the mounting seat, a bearing and a sealing assembly are provided in the mounting hole, the sealing assembly is located above the bearing, and the upper end of the rotating shaft passes through the bearing and the sealing assembly to be connected to the grinding disc.

[0024] Preferably, a grinding ring is provided in the mounting seat, a groove is provided on the inner wall surface of the mounting seat, a block is provided on the outer wall surface of the grinding ring, the block is inserted into the groove, so that the grinding ring is connected to the mounting seat, the grinding ring is located above the grinding disk, and a plurality of grinding holes are provided on the grinding ring.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The dual-motor drive mechanism can not only achieve high-efficiency operation, but also provide large torque under certain conditions. Under normal circumstances, it only works through one motor, and the diameter and length of the motor are in the best ratio, so it can work normally and efficiently. When the shaft encounters greater resistance during rotation, resulting in a decrease in speed, the two motors work at the same time, thereby providing large torque.

[0027] 2. The Hall sensor can sense the position of the upper rotor and feed back the signal to the controller to obtain the rotational speed of the upper rotor. Once the upper rotor encounters resistance and the rotational speed decreases, the controller energizes the lower stator according to the signal to rotate the lower rotor. The upper and lower rotors drive the shaft to rotate at the same time. When the harder garbage is crushed, the rotational speed of the upper rotor returns to the set value. At this time, the Hall sensor transmits the signal to the controller, and the controller cuts off the power to the lower stator and stops the lower rotor from rotating. In this way, the torque can be automatically increased when crushing bones, making the entire process automated.

[0028] 3. The food waste disposer has two working states. One is that only the upper rotor drives the shaft to rotate, which is used to crush general food waste. The other is that the upper rotor and the lower rotor work at the same time to drive the shaft to rotate, which is used to crush harder garbage such as bones. The switching of the two working states is automatic. When the speed of the upper rotor decreases, it switches to another working state. When the speed of the upper rotor recovers, it switches to the initial working state. Therefore, the whole process is automated and very convenient, which avoids the problems of low working efficiency and high power consumption of high-power motors and solves the problem that the food waste disposer cannot crush bones. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of an explosion of the food waste disposer of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the food waste disposer of the present invention.

[0031] Figure 3 It is a schematic diagram of the structure of the mounting seat and the grinding sheet of the present invention.

[0032] Figure 4 It is a schematic structural diagram of the grinding ring and the mounting seat of the present invention.

[0033] In the figure, 100, motor housing; 110, upper wire hole; 120, lower wire hole; 130, bushing; 200, rotating shaft; 310, lower stator; 320, lower rotor; 330, lower wire; 410, upper stator; 420, upper rotor; 430, upper wire; 440, Hall sensor; 500, mounting seat; 510, mounting hole; 520, bearing; 530, sealing assembly; 540, grinding ring; 541, grinding hole; 550, slot; 560, block; 600, grinding disc; 610, grinding hammer; 620, knife tooth; 630, discharge hole. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0035] like Figure 1 , Figure 2 As shown, a dual-motor drive mechanism includes: a motor housing 100, an upper motor module, a lower motor module and a rotating shaft 200, which is actually a dual-motor mechanism consisting of two stators and a rotor, so that both working efficiency and output torque can be taken into account.

[0036] It is worth explaining here that the dual-motor drive mechanism is actually a motor, preferably a permanent magnet brushless motor, hereinafter referred to as the motor. The permanent magnet brushless motor is a motor with high efficiency, low noise and long service life, and is widely used in various industries.

[0037] In the prior art, the size of the permanent magnet brushless motor mainly includes the diameter and length of the motor. There is an optimal ratio between the diameter and length of the motor, so that the best efficiency can be achieved. Generally speaking, the size and power of the motor are closely related to the application. For example, the motor on the fan and the motor on the winch are both motors, but the sizes of the two are completely different. Due to power reasons, the motor on the fan is completely useless when used on the winch. When the motor on the winch is used on the fan, due to the excessive power, although the fan can rotate at high speed, its rotation speed is very fast, and the noise and heat generated are very high. The motor is easy to burn out, and since a large amount of power is wasted, the actual efficiency is very low.

[0038] Based on the above description, it can be found that motors of appropriate sizes are needed in many occasions. For example, in food waste disposers, suitable motors are needed. Specifically, the speed required for food waste disposers is generally maintained at around 3000-3300 rpm, and the diameter and length of the motor need to maintain a certain ratio to obtain the best efficiency. If a relatively large motor is used, not only will the efficiency be very low, but it will also cause the motor speed to be too fast, reducing the service life of the motor, and causing a lot of noise. The motor is also easy to burn out. If a suitable motor is used, although high-efficiency work can be achieved, it is difficult to crush hard objects such as bones.

[0039] In addition, it is worth pointing out that a motor usually has only one stator and one rotor, that is, it has only one motor module, and the size of the motor is actually related to the power. The power of a large motor is relatively large, while the power of a small motor is relatively small. As we all know, the relationship between the power, torque and speed of a motor is P=T×n, that is, under the premise of a certain power, the torque and speed are inversely proportional, the faster the speed, the smaller the torque, and the slower the speed, the greater the torque.

[0040] In actual work, the speed of the motor is also certain. For example, in a food waste disposer, the motor needs to be maintained between 3000-3300 revolutions per minute, so the speed and power of the motor can actually be regarded as fixed. The motor needs to adapt to the actual working environment. If a motor that is too large is used, the efficiency of the motor will be reduced, and various disadvantages will be caused. That is, when the motor maintains a certain speed, the torque provided by the motor is much greater than the actual need, which is more power-consuming and inefficient, and it will generate more noise and more heat, reducing the working life.

[0041] This results in that, in actual food waste disposers, due to reasons of size and working efficiency, a motor of appropriate size needs to be used. This motor can indeed provide sufficient torque under working conditions of 3000-3300 revolutions per minute to crush general food waste. However, food waste is not uniform. Some food waste can be crushed with only general torque, while some harder food waste, such as pig bones, requires very large torque, resulting in general motors being unable to crush pig bones. If the bones need to be crushed, a high-power motor is required. When a high-power motor is not crushing harder waste such as bones, it consumes more electricity, so the efficiency is lower. This requires a motor that can work at general power in normal times and provide high power when high torque is needed, so that the shaft 200 can provide additional high torque while maintaining a normal speed.

[0042] There is one motor housing 100 , and a longer motor housing 100 can be selected to accommodate two motor modules.

[0043] A lower motor module is disposed in the motor housing 100 , and an upper motor module is disposed in the motor housing 100 , and the upper motor module is located above the lower motor module.

[0044] Preferably, the upper motor module and the lower motor module have similar structures, both of which are rotor-stator structures. The two are independent of each other and are not linked, and the upper motor module is used to work under normal power conditions. Specifically, the size and length of the upper motor module are in an optimal ratio, and the power it generates just matches the required power, so its efficiency is very high. The lower motor module is used to provide additional power, thereby greatly increasing the torque, and it does not start under normal conditions. In addition, it is also worth pointing out that the lower motor module can also be selected to work under normal power, while the upper motor module can provide additional torque.

[0045] The rotating shaft 200 is connected to the upper motor module and the lower motor module. The upper motor module drives the rotating shaft 200 to rotate, and when the rotation speed of the rotating shaft 200 decreases, the lower motor module and the upper motor module work simultaneously and drive the rotating shaft 200 to rotate.

[0046] Preferably, the rotating shaft 200 is actually the output shaft, and the upper motor module and the lower motor module share a rotating shaft 200. Under normal working conditions, since the length and diameter of the upper motor module are in an optimal ratio, it can provide sufficient speed and torque, and the working efficiency is very high, so that it can have practical value.

[0047] The food waste disposer can only crush food waste at the set speed and torque. Once it encounters harder garbage, the rotation of the shaft 200 will be hindered and the speed will decrease. Although the torque will increase, it still cannot crush the bones. At this time, the lower motor module starts and the power increases significantly, which increases the speed and torque, and has enough torque to crush the bones. After the bones are crushed, the resistance to the shaft 200 becomes smaller, so the speed returns to the set value. At this time, the lower motor module stops working and maintains a normal and high-efficiency working state.

[0048] like Figure 1 , Figure 2As shown, in the above embodiment, the lower motor module includes a lower stator 310 and a lower rotor 320, the lower stator 310 is arranged in the motor housing 100, and the lower rotor 320 is arranged in the lower stator 310, the upper motor module includes an upper stator 410 and an upper rotor 420, the upper stator 410 is arranged in the motor housing 100, and the upper stator 410 is located above the lower stator 310, the upper rotor 420 is arranged in the upper stator 410, the lower rotor 320 is coaxially arranged with the upper rotor 420, and the rotating shaft 200 passes through the lower rotor 320 and the upper rotor 420.

[0049] Preferably, the structures of the upper motor module and the lower motor module are actually similar, so when the upper motor module and the lower motor module work at the same time, the power can be greatly improved, wherein the upper motor module is an inner rotor structure, which has an upper stator 410 and an upper rotor 420. When the upper stator 410 is energized, it can drive the rotating shaft 200 to rotate, thereby achieving a normal crushing effect. The lower motor module is also an inner rotor structure, which has a lower stator 310 and a lower rotor 320. When the lower stator 310 is energized, the lower rotor 320 can also drive the rotating shaft 200 to rotate, so that the torque of the rotating shaft 200 is greater.

[0050] Furthermore, the diameter and length of the upper stator 410 and the upper rotor 420 are in an optimal ratio, and can be installed in a food waste disposer. Due to the optimal ratio, they can operate at a rotation speed of 3000-3300 and are in a high-efficiency state when working, which is suitable for crushing general food waste. The lower stator 310 and the lower rotor 320 stop working under normal circumstances and only start working when crushing hard objects. Therefore, the entire motor can maintain high-efficiency operation under normal circumstances, avoiding various disadvantages caused by excessive rotation speed, and can provide additional torque and power when encountering hard objects.

[0051] like Figure 1 , Figure 2 As shown, in the above embodiment, the motor housing 100 is provided with an upper wire hole 110 and a lower wire hole 120 , the upper stator 410 is provided with an upper wire 430 , and the upper wire 430 passes through the upper wire hole 110 , and the lower stator 310 is provided with a lower wire 330 , and the lower wire 330 passes through the lower wire hole 120 .

[0052] Preferably, the upper stator 410 and the lower stator 310 are independent of each other and are independently powered, wherein the upper wire 430 and the lower wire 330 are respectively connected to the power supply circuit. Under normal circumstances, only the upper wire 430 is powered and the lower wire 330 is not powered, so only the upper rotor 420 rotates. When the speed of the upper rotor 420 decreases, the lower wire 330 is powered, so that the lower rotor 320 rotates synchronously with the upper rotor 420.

[0053] like Figure 1 , Figure 2 As shown, in the above embodiment, the dual-motor drive mechanism also includes a controller, the upper stator 410 is provided with a Hall sensor 440, the Hall sensor 440 is electrically connected to the controller, and the controller senses the rotation speed of the upper rotor 420 through the Hall sensor 440.

[0054] Preferably, the dual-motor drive mechanism is also provided with a controller, which has a control circuit therein. The controller can control the rotation of the lower rotor 320, and the upper stator 410 is provided with a Hall sensor 440, which can sense the position of the upper rotor 420, and feed back the signal to the controller, thereby obtaining the rotation speed of the upper rotor 420. Once the upper rotor 420 encounters resistance and the rotation speed decreases, the controller energizes the lower stator 310 according to the signal, so that the lower rotor 320 rotates, and the upper rotor 420 and the lower rotor 320 simultaneously drive the rotating shaft 200 to rotate. When the harder garbage is crushed, the rotation speed of the upper rotor 420 returns to the set value. At this time, the Hall sensor 440 transmits a signal to the controller, and the controller then cuts off the power to the lower stator 310 and stops the lower rotor 320 from rotating. In this way, the effect of automatically increasing the torque when crushing bones can be achieved, making the entire process automated.

[0055] like Figure 1 , Figure 2 As shown, in the above embodiment, the controller is electrically connected to the lower stator 310, and the controller senses through the Hall sensor 440 that the speed of the upper rotor 420 is reduced, and then rotates the lower rotor 320, and drives the rotating shaft 200 to rotate through the upper rotor 420 and the lower rotor 320 at the same time.

[0056] Preferably, the controller is electrically connected to the lower stator 310, and can start the lower rotor 320 according to the signal fed back by the Hall sensor 440. Specifically, once the upper rotor 420 encounters resistance and the speed decreases, the controller energizes the lower stator 310 according to the signal to make the lower rotor 320 rotate. Once the speed of the upper rotor 420 rises to the set value, the controller cuts off the power supply to the lower stator 310, so that the whole process forms a dynamic adjustment effect.

[0057] like Figure 1 , Figure 2 As shown, in the above embodiment, a liner 130 is disposed in the motor housing 100 , and the liner 130 is disposed between the upper stator 410 and the lower stator 310 , so that the upper stator 410 is connected to the lower stator 310 through the liner 130 .

[0058] Preferably, a certain distance needs to be maintained between the upper stator 410 and the lower stator 310 to avoid interference caused by direct contact between the two, so a liner 130 is specially provided so that the two can be kept close to each other while being isolated by the liner 130.

[0059] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in the above embodiment, a food waste disposer has a dual-motor drive mechanism, including:

[0060] A mounting seat 500, which is fixedly connected to the motor housing 100, and the rotating shaft 200 passes through the mounting seat 500;

[0061] The grinding disc 600 is arranged in the mounting seat 500. The grinding disc 600 is connected to the rotating shaft 200, and the upper rotor 420 drives the grinding disc 600 to rotate through the rotating shaft 200. When the rotation speed of the grinding disc 600 decreases, the lower rotor 320 rotates, so that the upper rotor 420 and the lower rotor 320 drive the rotating shaft 200 to rotate at the same time.

[0062] Preferably, the existing food waste disposer has only a single motor structure, and this food waste disposer has only one working state, that is, the motor drives the grinding disc 600 to rotate. Once it encounters resistance, the speed will decrease because the power of the motor is fixed, and the grinding disc 600 may even be stuck, causing the shaft 200 to be unable to rotate.

[0063] The food waste disposer in this embodiment, although it only has one motor housing 100 in appearance, has two motor modules integrated in the motor housing 100, so that the food waste disposer has two working states. One is a state in which only the upper rotor 420 drives the rotating shaft 200 to rotate, which is used to crush general food waste. This state is very efficient, and most of the working processes of the food waste disposer are in this state. The other is a state in which the upper rotor 420 and the lower rotor 320 work simultaneously to drive the rotating shaft 200 to rotate, which is used to crush harder waste such as bones. , and the switching of the working states of the two is automatic. When the speed of the upper rotor 420 decreases, it switches to another working state. When the speed of the upper rotor 420 is restored, it switches to the initial working state. Therefore, the whole process is automatic, very convenient, and the use effect is also very good. It avoids the shortcomings of low efficiency, excessive speed, noise and easy burning caused by large-size and high-power motors, so that the food waste disposer can work with the best proportion of motors under normal circumstances, and can provide additional power and torque through the lower rotor 320 when crushing bones.

[0064] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in the above embodiment, the grinding disc 600 is provided with a grinding hammer 610, a knife tooth 620 and a discharge hole 630. When the grinding disc 600 rotates, the knife teeth 620 and the grinding hammer 610 crush the food waste, and discharge the crushed food into the mounting seat 500 through the discharge hole 630.

[0065] Preferably, the grinding disc 600 is provided with a grinding hammer 610 and a knife tooth 620. When the grinding disc 600 rotates, the knife teeth 620 and the grinding hammer 610 can crush food waste, and once encountering harder food waste such as bones, the torque of the rotating shaft 200 will be greatly increased, so that the bones can be crushed very conveniently. After the food waste is crushed, it can be discharged into the mounting seat 500 through the discharge hole 630, and finally discharged from the valve port on the mounting seat 500.

[0066] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in the above embodiment, a mounting hole 510 is provided on the mounting seat 500, a bearing 520 and a sealing assembly 530 are provided in the mounting hole 510, and the sealing assembly 530 is located above the bearing 520, and the upper end of the rotating shaft 200 passes through the bearing 520 and the sealing assembly 530 to be connected to the grinding disc 600.

[0067] Preferably, a mounting hole 510 is provided on the mounting seat 500, and the rotating shaft 200 is supported in the mounting hole 510 by a bearing 520 and sealed by a sealing assembly 530. When the food waste disposer is working, food residues enter the mounting seat 500 along with water. If the sealing assembly 530 is not provided, water will leak into the motor, causing a safety hazard.

[0068] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in the above embodiment, a grinding ring 540 is arranged in the mounting seat 500, a slot 550 is arranged on the inner wall surface of the mounting seat 500, a block 560 is arranged on the outer wall surface of the grinding ring 540, and the block 560 is inserted into the slot 550, so that the grinding ring 540 is connected to the mounting seat 500, the grinding ring 540 is located above the grinding disc 600, and a plurality of grinding holes 541 are arranged on the grinding ring 540.

[0069] Preferably, the mounting seat 500 has a grinding ring 540, which cooperates with the grinding disc 600 to crush food residues together, and the grinding ring 540 is actually installed in the mounting seat 500 from top to bottom, and is locked by the slot 550 and the block 560 to prevent the grinding ring 540 from rotating, thereby better crushing food residues through the grinding hole 541 on the grinding ring 540.

[0070] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A food waste disposer, characterized in that: include: Motor housing; a lower motor module, which is disposed in the motor housing; An upper motor module, which is disposed in the motor housing and is located above the lower motor module; A rotating shaft connected to the upper motor module and the lower motor module, wherein the upper motor module drives the rotating shaft to rotate, and when the rotating speed of the rotating shaft decreases, the lower motor module and the upper motor module work simultaneously and drive the rotating shaft to rotate; The lower motor module comprises a lower stator and a lower rotor, wherein the lower stator is arranged in the motor housing, and the lower rotor is arranged in the lower stator; the upper motor module comprises an upper stator and an upper rotor, wherein the upper stator is arranged in the motor housing, and the upper stator is located above the lower stator, and the upper rotor is arranged in the upper stator; the lower rotor is arranged coaxially with the upper rotor, and the rotating shaft passes through the lower rotor and the upper rotor; It also includes a controller, the upper stator is provided with a Hall sensor, the Hall sensor is electrically connected to the controller, and the controller senses the rotation speed of the upper rotor through the Hall sensor; The controller is electrically connected to the lower stator, and the controller senses through the Hall sensor that the speed of the upper rotor is reduced, and then causes the lower rotor to rotate, and drives the rotating shaft to rotate simultaneously through the upper rotor and the lower rotor; A mounting seat, which is fixedly connected to the motor housing, and the rotating shaft passes through the mounting seat; The grinding disc is arranged in the mounting seat, the grinding disc is connected to the rotating shaft, and the upper rotor drives the grinding disc to rotate through the rotating shaft. When the rotation speed of the grinding disc decreases, the lower rotor rotates, so that the upper rotor and the lower rotor drive the rotating shaft to rotate at the same time.

2. A food waste disposer according to claim 1, characterized in that: The motor housing is provided with an upper wire hole and a lower wire hole, the upper stator is provided with an upper wire, the upper wire passes through the upper wire hole, and the lower stator is provided with a lower wire, the lower wire passes through the lower wire hole.

3. A food waste disposer according to claim 1, characterized in that: A liner is arranged in the motor housing, and the liner is arranged between the upper stator and the lower stator, so that the upper stator is connected to the lower stator through the liner.

4. A food waste disposer according to claim 1, characterized in that: The grinding disc is provided with a grinding hammer, knife teeth and a discharge hole. When the grinding disc rotates, the knife teeth and the grinding hammer crush the food waste, and the crushed food is discharged into the mounting seat through the discharge hole.

5. A food waste disposer as claimed in claim 4, characterized in that: The mounting seat is provided with a mounting hole, a bearing and a sealing assembly are provided in the mounting hole, the sealing assembly is located above the bearing, and the upper end of the rotating shaft passes through the bearing and the sealing assembly and is connected to the grinding disc.

6. A food waste disposer as claimed in claim 1, characterized in that: A grinding ring is arranged in the mounting seat, a groove is arranged on the inner wall surface of the mounting seat, a block is arranged on the outer wall surface of the grinding ring, and the block is inserted into the groove to connect the grinding ring with the mounting seat. The grinding ring is located above the grinding disc, and a plurality of grinding holes are arranged on the grinding ring.

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