CN212486357U - Low-noise kitchen waste disposer based on four-pole direct-current motor - Google Patents
Low-noise kitchen waste disposer based on four-pole direct-current motor Download PDFInfo
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- CN212486357U CN212486357U CN202021557128.5U CN202021557128U CN212486357U CN 212486357 U CN212486357 U CN 212486357U CN 202021557128 U CN202021557128 U CN 202021557128U CN 212486357 U CN212486357 U CN 212486357U
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Abstract
The embodiment of the utility model discloses low noise kitchen garbage disposer based on quadrupole DC motor. The low noise kitchen garbage disposer based on the four-pole direct current motor comprises: a control unit; a working part provided with a working space, and a workpiece is arranged in the working space; a four-pole direct current motor connected between the control unit and the operating unit, the four-pole direct current motor including: a drive shaft; a rotor assembly; winding; the stator assembly comprises four permanent magnets, and the four permanent magnets are circumferentially distributed on the periphery of the rotor assembly; wherein the diameter of the rotor assembly is 89-91 mm; the width of each permanent magnet is 44-54mm, the height of each permanent magnet is 34-48mm, and at least one rotor hole slot is arranged between every two adjacent permanent magnets. This send with novel embodiment provide based on four pole DC motor's kitchen garbage disposer can realize when the rotational speed reaches 2800 ~ 3200r/min, can satisfy kitchen garbage disposer's power demand to the noise has been reduced.
Description
Technical Field
The utility model relates to a refuse treatment technical field relates to a low noise kitchen garbage disposer based on quadrupole DC motor.
Background
A conventional household food waste disposer generally uses a single-phase ac motor or a two-phase dc motor as a driving unit to output a driving force, and particularly, mainly uses a two-phase dc motor.
At present, in order to enable the two-pole direct current motor to output enough power, the rotating speed of the two-pole direct current motor is required to reach 3500r/min to ensure that the kitchen waste disposer can output enough power, and the normal use of the kitchen waste disposer is ensured. However, when the rotating speed of the two-pole DC motor reaches 3500r/min or even exceeds 3500r/min, very large noise is generated, thereby influencing the use of the kitchen waste disposer.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a low noise kitchen garbage disposer based on quadrupole DC motor adopts quadrupole DC motor to when its rotational speed reaches 2800 ~ 3200r/min, can satisfy kitchen garbage disposer's power demand, thereby reduced the noise.
The embodiment of the utility model provides a low noise kitchen garbage disposer based on quadrupole DC motor, include: a control unit; a working part provided with a working space, and a workpiece is arranged in the working space; a four-pole dc motor connected between the control unit and the working unit; the four-pole direct current motor includes: the driving shaft extends into the working space and is connected with the workpiece in a shaft mode; the rotor assembly is connected with the driving shaft and is provided with a plurality of winding shafts which are distributed in the circumferential direction and a plurality of rotor hole grooves which are arranged among the winding shafts and have the same number with the winding shafts; the rotor hole slot is clamped between every two adjacent winding shafts; a winding group wound between the plurality of rotor hole slots; the stator assembly comprises four permanent magnets, and the four permanent magnets are circumferentially distributed on the periphery of the rotor assembly;
in one embodiment of the present invention, the rotor assembly has a diameter of 89-91 mm; the width of each permanent magnet is 44-54mm, the height of each permanent magnet is 34-48mm, and at least one rotor hole slot is arranged between every two adjacent permanent magnets.
In an embodiment of the present invention, the four-pole dc motor further includes: the reversing assembly is connected with the driving shaft through a shaft and is provided with a plurality of reversing pieces, and the number of the reversing pieces is twice that of the winding shafts; the brush holder assembly is provided with a reversing assembly opening and four electric brushes, and the reversing assembly opening is sleeved outside the reversing assembly, and the four electric brushes are respectively contacted with at least two of the plurality of commutator segments.
In an embodiment of the present invention, twenty winding shafts are provided, and twenty rotor hole slots are provided; correspondingly, forty commutator segments are arranged.
In an embodiment of the present invention, the rotor assembly includes: the rotor body is provided with the twenty winding shafts and the twenty rotor hole grooves; and the at least two rotor punching sheets are respectively matched with the end faces of the rotor body and respectively cover the two opposite end faces of the rotor body.
In an embodiment of the present invention, the rotor body is further provided with four magnetic member accommodating cavities; the rotor assembly further includes: the four magnetic pieces are respectively installed in the four magnetic piece accommodating cavities in a matching manner; and one rotor hole groove corresponds to two adjacent magnetic piece accommodating cavities.
In an embodiment of the present invention, each of the winding shafts is connected to a winding baffle plate at one end close to the stator assembly; an opening is formed between every two adjacent winding baffles and is communicated with the rotor hole slot between the corresponding two winding shafts.
In an embodiment of the present invention, the stator assembly further comprises a housing sleeved outside the stator assembly; four limit pieces are circumferentially distributed at the position of the shell corresponding to the stator assembly; the four permanent magnets respectively correspond to the four limiting parts and are clamped between the shell and the rotor assembly.
In an embodiment of the present invention, the four-pole dc motor further includes: the cover plate comprises two cover plates and a fastener, wherein the two cover plates are respectively covered at two ends of the shell, and the fastener is fixedly connected with the two cover plates.
In an embodiment of the present invention, the winding group is spaced by four, and the rotor hole slot is wound to the rotor assembly.
In summary, the above embodiments of the present application may have the following advantages: i) compared with a kitchen waste disposer with a dipolar direct-current motor, the kitchen waste disposer can meet the power requirement when the rotating speed reaches 2800-3200 r/min, so that the noise is reduced; ii) twenty winding shafts which are internally provided with a rotor assembly and circumferentially distributed and twenty rotor hole grooves which are arranged among the twenty winding shafts, wherein the diameter of the rotor assembly is 89-91mm, so that the size of the four-pole direct current motor can be matched with a low-noise kitchen garbage disposer which is applied to the four-pole direct current motor, and the garbage disposal efficiency is improved; and iii) the number of commutator segments is 2 times of the number of rotor slots, so that the voltage division of the commutation voltage is realized to reduce sparks.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a low-noise kitchen waste disposer 200 of a four-pole dc motor according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of the four-pole dc motor 100 of fig. 1.
Fig. 3 is a schematic diagram illustrating the positional relationship between the 4 permanent magnets 51 and the rotor assembly 10 in fig. 2.
Fig. 4 is a schematic structural view of the rotor assembly 10 of fig. 3.
Fig. 5 is a schematic structural view of the rotor body 11 in fig. 4.
Fig. 6 is a schematic structural view of the permanent magnet 51 in fig. 3.
Fig. 7 is a schematic view of the connection between the brush holder assembly 40 and the reversing assembly 60 in fig. 3.
Fig. 8 is a schematic view of the structure of the brush holder assembly 40 of fig. 7.
Fig. 9 is a schematic structural view of the housing 20 in fig. 2.
Description of the main element symbols: 200 kitchen waste processor based on four-pole DC motor; a 100 quadrupole dc motor; 10 a rotor assembly; 11 is a rotor body; 12, punching a rotor sheet; 1201 positioning the gap; 1202 positioning the shaft; 13 winding shafts; 14 a magnetic member accommodating chamber; 15 rotor bore slots; 16 a rotating shaft accommodating cavity; 17, winding baffle plates; 20 a housing; 21 a limiting member; 30 fixing the component; 31 a cover plate; 32 fasteners; 40 a brush holder assembly; 41 are four brushes; 42, opening a hole on the reversing component; 50 a stator assembly; 51 a permanent magnet; 70 a rotating shaft; 60 a commutation component; 61 commutator segments; 210 a control unit; 220 a working part; 221 a first input opening; 222 a second input opening; 223 output opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model discloses a low noise kitchen garbage disposer based on quadrupole direct current motor that first embodiment provided, see fig. 1, this low noise kitchen garbage disposer 200 based on quadrupole direct current motor includes, for example, quadrupole direct current motor 100, connects the control part 210 in quadrupole direct current motor 100 one side and connects the work portion 220 at the opposite side that quadrupole direct current motor 100 is relative wherein, in the pivot 70 of quadrupole direct current motor 100 stretched into work portion 220 to connect the work subassembly in the work portion 220 and carry out refuse treatment.
The top of the working part 220 is provided with a first input opening 221, and the first input opening 221 can be communicated with a sewage discharge outlet of a household sink and is used for receiving household garbage and performing corresponding garbage treatment; the side of the working part 220 can be further provided with a second input opening 222, and the second input opening 222 can be communicated with a sewage outlet of a household dishwasher and used for receiving household garbage and performing corresponding garbage treatment; the side of the working part 220 near the bottom connected to the four-pole dc motor 100 is provided with an output opening 223, and the output opening 223 can be used for communicating a sewer for discharging the treated garbage.
Specifically, referring to fig. 2, the four-pole dc motor 100 includes, for example: a rotor assembly 10, a stator assembly 50 circumferentially distributed around the rotor assembly 10, and winding groups (not shown) wound around the rotor assembly 10 at intervals of four rotor bore slots 15 to the rotor assembly 10.
Specifically, referring to fig. 3, 4 and 5, the rotor assembly 10 is provided with twenty circumferentially distributed bobbins 13 and twenty rotor hole slots 15 interposed between the twenty bobbins 13; wherein, one rotor hole slot 15 is formed by two adjacent winding shafts 13, or one rotor hole slot 15 is formed between two adjacent winding shafts 13, and the diameter of the rotor assembly 10 is 89-91mm, preferably, the diameter of the rotor assembly 10 is set to be 90 mm.
The stator assembly 50 includes, for example, four permanent magnets 51, the four permanent magnets 51 being circumferentially distributed around the rotor assembly 10; wherein, a space is provided between two adjacent permanent magnets 51.
Compared with the existing household garbage disposer, the household garbage disposer can output enough power only by adopting a dipolar direct current motor to cause a large rotating speed (more than 3500 r/min), but can generate large noise when the rotating speed is large, the low-noise kitchen garbage disposer 200 of the quadrupole direct current motor has the advantage of low noise, and meanwhile, when the rotating speed reaches 2800-3200 r/min, the power requirement of the kitchen garbage disposer can be met, so that the noise is reduced.
Preferably, the rotor assembly 10 is further provided with a rotating shaft receiving cavity 16, and accordingly, the four-pole dc motor 100 further includes: the rotating shaft 70 is sleeved in the rotating shaft accommodating cavity 16, and the rotating shaft 70 is also fixedly connected with the rotor assembly 10. For example, the rotating shaft 70 is inserted into the rotor accommodating cavity 16 from the rotor accommodating cavity 16 at an opening at one end of the rotor assembly 10; in operation of the rotor assembly 10, power output is achieved through the shaft 70 within the shaft receiving cavity 16.
Preferably, the rotor assembly 10 further includes, for example: rotor body 11 and at least two rotor punching 12. Specifically, the rotor body 11 is provided with twenty winding shafts 13 and twenty rotor hole slots 15; twenty positioning shafts 1202 corresponding to the twenty winding shafts 13 are circumferentially distributed on each rotor punching 12, twenty positioning gaps 1201 are arranged between the twenty positioning shafts 1202, and the twenty positioning gaps 1201 are in one-to-one correspondence with the twenty rotor hole slots 15; the rotor body 11 and each rotor sheet 12 are provided with a coaxial rotating shaft accommodating cavity 16 for connecting a rotating shaft 70; each rotor punching sheet 12 is respectively matched with the end face of the rotor body 11 and respectively covers two opposite end faces of the rotor body 11.
Further, the rotor body 11 is further provided with four magnetic member accommodating cavities 14, and correspondingly, the rotor assembly 10 further includes four magnetic members (not shown in the drawings) respectively installed in the four magnetic member accommodating cavities 14 in a matching manner; wherein, a rotor hole slot 15 is arranged between two adjacent magnetic piece accommodating cavities 14. The four magnetic members increase the magnetic field strength of the rotor assembly 10, and increase the output torque of the four-pole dc motor 100.
Preferably, a winding baffle 17 is connected to each of the winding shafts 13 near one end of the stator assembly 50, and the winding baffle 17 is used to further limit the winding position of the winding groups on the winding shafts 13 and prevent the winding groups from slipping off the winding shafts 13. An opening is formed between two adjacent winding baffles 17 to facilitate winding of the winding groups; the openings are communicated with the rotor hole slots 15 clamped between the two corresponding winding shafts 13, circulation of air flow inside and outside the rotor hole slots 15 is promoted, and the heat dissipation effect is improved.
Preferably, referring to fig. 6, each permanent magnet 51 may be a magnetic shoe, each of the magnetic shoes has a width L of 44-54mm, and each of the magnetic shoes has a height H of 34-48 mm. For example, each permanent magnet 51 may be a ferrite magnetic shoe, a neodymium iron boron magnetic shoe, or an alnico magnetic shoe, respectively; the permanent magnet 51 is capable of providing a constant and certain strength of magnetic action field during application, and has the ability to maintain such magnetic action field in a demanding environment; at the same time, the size of the magnetic shoe can maintain the magnetic action strength, and the overall installation size of the four-pole dc motor 100 assembled by the magnetic shoe and the rotor assembly 10 is further reduced.
Preferably, referring to fig. 7 and 8, the four-pole dc motor 100 further includes, for example: a diverter assembly 60 and a brush holder assembly 40.
Specifically, the reversing assembly 60 is also connected to the rotating shaft 70, and the rotor assembly 10 drives the rotating shaft 70 to rotate and simultaneously drives the reversing assembly 60 to rotate; the reversing assembly 60 is provided with forty reversing sheets 61, the number of the reversing sheets 61 is 2 times of the number of the rotor hole grooves 15, and the purpose of reducing sparks by voltage division of reversing voltage is achieved.
The brush holder assembly 40 is provided with a reversing assembly opening 42 and four electric brushes 41, and an included angle formed by two adjacent electric brushes 41 is 90 degrees; each two of the brushes 41 disposed opposite to each other are grouped, and thus the four brushes 41 are divided into two groups; one set of the brushes 41 is electrically connected with a positive power line, and the other set of the brushes 41 is electrically connected with a negative power line; the brush holder assembly 40 is sleeved outside the reversing assembly 60 through the reversing assembly opening 42, and the four brushes 41 are respectively contacted with at least two reversing sheets 61 of the forty reversing sheets 61.
Because in the working process of the four-pole direct current motor 100, when the brush 41 slides at a high speed relative to the surface of the commutator segment 61, sparks and electric arcs are caused, the surface of the brush 41 is abraded, and the resistance change is influenced, by arranging the forty commutator segments 61 in the circumferential direction, compared with a two-pole direct current motor used by the existing household garbage disposer, the number of the commutator segments 61 is increased to be twice of that of the rotor hole grooves 15, the sliding distance between the adjacent commutator segments 61 is reduced, the influence of the brush 41 on the surface of the commutator segment 61 in the high-speed sliding process is smaller, and the stability of the four-pole direct current motor 100 is improved.
The specific operation of the four-pole dc motor 100 is, for example: when the winding is energized, the rotor assembly 10 rotates under the action of the permanent magnet 50 through the attraction and repulsion forces, when the rotor assembly 10 rotates to be balanced with the permanent magnet 50, the originally energized winding is separated from one set of brushes 41 (two brushes 41 are one set) in the brush holder assembly 40 than the commutator segment 61 on the corresponding commutator assembly 60, and the other set of brushes 41 is connected to the commutator segment 61 corresponding to the winding set generating the driving force, so that the four-pole direct current motor 100 repeatedly rotates.
Preferably, referring to fig. 9, the four-pole dc motor 100 further includes, for example, a housing 20, the housing 20 being sleeved outside the positioning assembly 50 such that the positioning assembly 50 is sandwiched between the housing 20 and the rotor assembly 10; one side of the casing 20, which is in contact with the stator assembly 50, is provided with four limiting members 21 corresponding to the four permanent magnets 51 one by one, and the four limiting members 21 are used for limiting the four permanent magnets 51 respectively and are used for positioning the four permanent magnets 51 so that the four permanent magnets 51 can be mounted at a proper height at one time.
Preferably, the four-pole dc motor 100 further includes, for example, the fixing assembly 30, which greatly increases the tightness of the connection between the rotor assembly 10, the stator assembly 20, the brush holder assembly 40, and the commutation assembly 60, and reduces noise generated during rotation of the four-pole dc motor 100.
Specifically, the fixing member 30 includes, for example, two cover plates 31 respectively covering both ends of the housing 20, and a fastening member 32 fastening and connecting the two cover plates 31. For example, the fastening member 32 includes a plurality of bolt connection members, the two cover plates 31 are respectively provided with a plurality of threaded connection holes, and the plurality of bolt connection members respectively sequentially pass through the plurality of threaded connection holes of the two cover plates 31, so as to fasten and connect the two cover plates 31, the rotor assembly 10, the stator assembly 20, the brush holder assembly 40, and the reversing assembly 60, which are clamped between the two cover plates 31, thereby improving the tightness of the above structure.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A low noise kitchen waste disposer based on a four-pole DC motor is characterized by comprising:
a control unit;
a working part provided with a working space, and a workpiece is arranged in the working space;
a four-pole dc motor connected between the control unit and the working unit; the method comprises the following steps:
the driving shaft extends into the working space and is connected with the workpiece in a shaft mode;
the rotor assembly is connected with the driving shaft and is provided with a plurality of winding shafts which are distributed in the circumferential direction and a plurality of rotor hole grooves which are arranged among the winding shafts and have the same number with the winding shafts; the rotor hole slot is clamped between every two adjacent winding shafts;
a winding group wound between the plurality of rotor hole slots;
the stator assembly comprises four permanent magnets, and the four permanent magnets are circumferentially distributed on the periphery of the rotor assembly;
wherein the diameter of the rotor assembly is 89-91 mm; the width of each permanent magnet is 44-54mm, the height of each permanent magnet is 34-48mm, and at least one rotor hole slot is arranged between every two adjacent permanent magnets.
2. The low noise kitchen waste disposer of claim 1, wherein the four-pole dc motor further comprises:
the reversing assembly is connected with the driving shaft through a shaft and is provided with a plurality of reversing pieces, and the number of the reversing pieces is twice that of the winding shafts;
the brush holder assembly is provided with a reversing assembly opening and four electric brushes, and the reversing assembly opening is sleeved outside the reversing assembly, and the four electric brushes are respectively contacted with at least two of the plurality of commutator segments.
3. The low noise kitchen waste disposer of claim 2, wherein the spool has twenty spool holes and the rotor slot has twenty rotor holes; correspondingly, forty commutator segments are arranged.
4. The quadrupole direct current motor-based low noise kitchen waste disposer of claim 3, wherein the rotor assembly comprises:
the rotor body is provided with the twenty winding shafts and the twenty rotor hole grooves;
and the at least two rotor punching sheets are respectively matched with the end faces of the rotor body and respectively cover the two opposite end faces of the rotor body.
5. The low noise kitchen waste disposer of claim 4, wherein the rotor body is further provided with four magnetic piece receiving cavities; the rotor assembly further includes:
the four magnetic pieces are respectively installed in the four magnetic piece accommodating cavities in a matching manner;
and one rotor hole groove corresponds to two adjacent magnetic piece accommodating cavities.
6. The low noise kitchen waste disposer based on a four-pole DC motor as claimed in claim 4, wherein a winding baffle is connected to one end of each winding shaft close to the stator assembly;
an opening is formed between every two adjacent winding baffles and is communicated with the rotor hole slot between the corresponding two winding shafts.
7. The low noise kitchen waste disposer based on a four-pole direct current motor of claim 1, further comprising a housing sleeved outside the stator assembly;
four limit pieces are circumferentially distributed at the position of the shell corresponding to the stator assembly;
the four permanent magnets respectively correspond to the four limiting parts and are clamped between the shell and the rotor assembly.
8. The low noise kitchen waste disposer of claim 7, wherein the four-pole DC motor further comprises: the cover plate comprises two cover plates and a fastener, wherein the two cover plates are respectively covered at two ends of the shell, and the fastener is fixedly connected with the two cover plates.
9. The low noise kitchen waste disposer of claim 1, wherein the winding assembly is wound to the rotor assembly at four rotor slots apart.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021557128.5U CN212486357U (en) | 2020-07-31 | 2020-07-31 | Low-noise kitchen waste disposer based on four-pole direct-current motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021557128.5U CN212486357U (en) | 2020-07-31 | 2020-07-31 | Low-noise kitchen waste disposer based on four-pole direct-current motor |
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| CN212486357U true CN212486357U (en) | 2021-02-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884461A (en) * | 2020-07-31 | 2020-11-03 | 宁波仁山电器有限公司 | Low-noise kitchen waste disposer based on four-pole direct-current motor |
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- 2020-07-31 CN CN202021557128.5U patent/CN212486357U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884461A (en) * | 2020-07-31 | 2020-11-03 | 宁波仁山电器有限公司 | Low-noise kitchen waste disposer based on four-pole direct-current motor |
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