Quadrupole permanent magnet motor for processor

Abstract

The quadrupole permanent magnet motor comprises a base and a motor shell installed on the upper portion of the base, a grinding cavity is formed in the upper portion of the motor shell, a rotating shaft is installed on the upper portion of the center of the base, and a motor rotor is installed on the outer side of the rotating shaft. Four motor stators are installed in the motor shell in an annular array mode, and the four motor stators are wound on the outer side of the motor rotor. According to the four-pole motor, the four motor stators are arranged to form the four-pole motor, the end degree span of the four-pole rotor is only half of that of a two-pole motor, compared with the two-pole motor with the same power, the height of the end part of the rotor is reduced by nearly half, and the height of the grinding cavity is higher under the same height; in addition, a quadrupole motor generally has higher power output capability than a dipolar motor; the torque is more stable than the torque of a two-pole motor, and the starting torque is higher and the torque range is wider than that of the two-pole motor.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage disposer accessories, in particular to a quadrupole permanent magnet motor for a garbage disposer. Background Art

[0002] With the improvement of living standards, household garbage disposers are widely used. In the process of garbage disposal, a motor is required to drive the grinding disc to rotate so as to crush the garbage inside the grinding chamber.

[0003] The motors currently used are generally two-pole motors. However, the rotor end of the two-pole motor has a pitch of 8 slots, the winding span is large, and the height of the coil is limited, resulting in the overall height of the garbage disposer being too high. At the same height, the volume of the grinding chamber is affected, resulting in a decrease in the amount of garbage processed. Utility Model Content

[0004] The purpose of the utility model is to provide a quadrupole permanent magnet motor for a processor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quadrupole permanent magnet motor for a processor, comprising a base and a motor shell installed on the upper part of the base, a grinding chamber is arranged on the upper part of the motor shell, a rotating shaft is installed on the central upper part of the base, a motor rotor is installed on the outer side of the rotating shaft, four motor stators are installed in an internal annular array of the motor shell, and the four motor stators are wound on the outer side of the motor rotor.

[0006] In an embodiment of the utility model, a rotor commutator is arranged on the outer periphery of the rotating shaft adjacent to the base, and four carbon brushes cooperating with the rotor commutator are installed on the upper part of the base.

[0007] In an embodiment of the present invention, the four carbon brushes are respectively located at the bottom of the four motor stators.

[0008] In an embodiment of the utility model, a spacing gap is provided between the four motor stators, a connecting column is installed on the upper part of the base, and the upper part of the connecting column passes through the spacing gap and is connected to the lower part of the grinding chamber.

[0009] In one embodiment of the utility model, a threaded section is provided at one end of the rotating shaft away from the base, a sealing sleeve is provided at the lower part of the rotating shaft adjacent to the threaded section, a sealing ring is provided on the outer side of the sealing sleeve, a partition is provided at the lower part of the sealing ring, and a bearing is provided at the lower part of the partition.

[0010] In an embodiment of the utility model, a protective cover cooperating with the grinding chamber is arranged on the outer side of the threaded section.

[0011] In summary, due to the adoption of the above technology, the beneficial effects of the utility model are:

[0012] In the utility model, a four-pole motor is formed by arranging four motor stators. The span of the four-pole rotor end is only half of that of the two-pole motor. Compared with the two-pole motor with the same power, the height of the rotor end is reduced by nearly half. At the same height, the height of the grinding chamber is higher. In addition, the four-pole motor usually has a higher power output capacity than the two-pole motor; the torque is more stable than the two-pole motor, and it has a higher starting torque and a wider torque range than the two-pole motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an axonometric schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the motor housing of the utility model;

[0016] Figure 4 It is a schematic diagram of the motor rotor structure of the utility model from a first perspective;

[0017] Figure 5 This is a schematic diagram of the motor rotor structure of the utility model from a second viewing angle.

[0018] In the figure: 1. base; 2. motor housing; 3. grinding chamber; 4. rotating shaft; 5. motor rotor; 6. motor stator; 7. rotor commutator; 8. carbon brush; 9. spacing gap; 10. connecting column; 11. threaded section; 12. sealing sleeve; 13. sealing ring; 14. partition; 15. bearing; 16. protective cover. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0020] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the specification.

[0022] Example 1

[0023] See also Figure 1-Figure 5The utility model provides a quadrupole permanent magnet motor for a processor, comprising a base 1, and a motor shell 2 mounted on the upper part of the base 1, a grinding chamber 3 is arranged on the upper part of the motor shell 2, a rotating shaft 4 is mounted on the central upper part of the base 1, a motor rotor 5 is mounted on the outer side of the rotating shaft 4, and four motor stators 6 are mounted in an annular array inside the motor shell 2, and the four motor stators 6 are wound on the outer side of the motor rotor 5. By arranging four motor stators 6 to form a quadrupole motor, the span of the quadrupole rotor end is only half of that of a two-pole motor, and the height of the rotor end is reduced by nearly half compared with that of a two-pole motor with the same power, so that the height of the grinding chamber 3 is higher at the same height; in addition, the quadrupole motor usually has a higher power output capacity than the two-pole motor; the torque is more stable than that of the two-pole motor, and it has a higher starting torque and a wider torque range than the two-pole motor.

[0024] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 In order to better control, a rotor commutator 7 is arranged on the outer periphery of the rotating shaft 4 near the base 1, and four carbon brushes 8 cooperating with the rotor commutator 7 are installed on the upper part of the base 1. The four carbon brushes 8 are respectively located at the lower part of the four motor stators 6.

[0025] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 In order to provide good support and fixation for the grinding chamber 3, a spacing gap 9 is provided between the four motor stators 6, a connecting column 10 is installed on the upper part of the base 1, and the upper part of the connecting column 10 passes through the spacing gap 9 and is connected to the lower part of the grinding chamber 3. An accommodating space is formed between the grinding chamber 3, the motor housing 2 and the base 1, and the accommodating space accommodates the main structure of the motor.

[0026] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 , a threaded section 11 is provided at one end of the rotating shaft 4 away from the base 1, and the threaded section 11 is used to connect with the external grinding disc, and the threaded section 11 passes through the middle of the grinding chamber 3, and a sealing sleeve 12 is provided at the lower part of the rotating shaft 4 adjacent to the threaded section 11, and a sealing ring 13 is provided on the outer side of the sealing sleeve 12, and a partition 14 is provided at the lower part of the sealing ring 13, and a bearing 15 is provided at the lower part of the partition 14. The outer ring of the bearing 15 is fixed to the inner side of the center of the grinding chamber 3. By using the cooperation of the sealing sleeve 12, the sealing ring 13 and the bearing 15, a good seal can be achieved to prevent the ground garbage residue from entering the interior of the motor and affecting the operation of the motor, and a good operating effect can be achieved. Of course, in order to better seal, a protective cover 16 that cooperates with the grinding chamber 3 is provided on the outer side of the threaded section 11. It should be understood that the lower part of the grinding chamber 3 also serves as the upper end cover of the motor.

[0027] Structural principle: By setting four motor stators 6 to form a four-pole motor, the span of the four-pole rotor end is only half of that of the two-pole motor. Compared with the two-pole motor with the same power, the height of the rotor end is reduced by nearly half, so that the height of the grinding chamber 3 is higher at the same height;

[0028] Regarding power: Four-pole DC motors usually have higher power output capabilities than two-pole DC motors. This is because the magnetic field distribution of the four-pole motor is more uniform, the motor has four carbon brushes that can evenly distribute the current, the current resistance is stronger, and the entire magnetic field area can be used more effectively, thereby providing greater output power.

[0029] Regarding speed: Two-pole DC motors usually have higher speed capabilities. This is because two-pole motors have only two poles, and the magnetic field changes faster, so they can produce higher rotation speeds. Four-pole DC motors have four poles, and the magnetic field changes more slowly, so the torque is smoother than that of two-pole motors.

[0030] For torque: Four-pole DC motors generally have higher starting torque and a wider torque range than two-pole DC motors. This is because the four-pole motor has a larger magnetic field area, which can produce a higher magnetic field strength, thus providing greater torque. The torque of a two-pole DC motor is limited by its smaller magnetic field area.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A quadrupole permanent magnet motor for a processor, comprising a base (1) and a motor housing (2) mounted on the upper part of the base (1), characterized in that: A grinding chamber (3) is arranged at the upper part of the motor housing (2); a rotating shaft (4) is installed at the central upper part of the base (1); a motor rotor (5) is installed on the outer side of the rotating shaft (4); four motor stators (6) are installed in an annular array inside the motor housing (2); and the four motor stators (6) are wound around the outer side of the motor rotor (5).

2. The quadrupole permanent magnet motor for a processor according to claim 1, characterized in that: A rotor commutator (7) is arranged on the outer periphery of the rotating shaft (4) adjacent to the base (1), and four carbon brushes (8) cooperating with the rotor commutator (7) are installed on the upper part of the base (1).

3. The quadrupole permanent magnet motor for a processor according to claim 2, characterized in that: The four carbon brushes (8) are respectively located at the bottom of the four motor stators.

4. The quadrupole permanent magnet motor for a processor according to claim 1, characterized in that: A spacing gap (9) is provided between the four motor stators (6), a connecting column (10) is installed on the upper part of the base (1), and the upper part of the connecting column (10) passes through the spacing gap (9) and is connected to the lower part of the grinding chamber (3).

5. A quadrupole permanent magnet motor for a processor according to claim 1 or 4, characterized in that: A threaded section (11) is provided at one end of the rotating shaft (4) away from the base (1); a sealing sleeve (12) is provided at the lower part of the rotating shaft (4) adjacent to the threaded section (11); a sealing ring (13) is provided on the outer side of the sealing sleeve (12); a partition (14) is provided at the lower part of the sealing ring (13); and a bearing (15) is provided at the lower part of the partition (14).

6. The quadrupole permanent magnet motor for a processor according to claim 5, characterized in that: A protective cover (16) is provided on the outer side of the threaded section (11) and is matched with the grinding chamber (3).

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