CN206490536U - The water pump of the rotor fluctuation of speed can be reduced - Google Patents
The water pump of the rotor fluctuation of speed can be reduced Download PDFInfo
- Publication number
- CN206490536U CN206490536U CN201720086182.8U CN201720086182U CN206490536U CN 206490536 U CN206490536 U CN 206490536U CN 201720086182 U CN201720086182 U CN 201720086182U CN 206490536 U CN206490536 U CN 206490536U
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- rotor
- magnetic core
- plastic packaging
- metallic cylinder
- rotor magnetic
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The water pump of the rotor fluctuation of speed is reduced the utility model discloses a kind of, including pump case and in the impeller of pump case intracavitary, impeller is by including the motor-driven rotation of rotor magnetic core and stator core, on rotor magnetic core, lower two ends are provided with pit, rotor magnetic core peripheral closure is provided with a metallic cylinder, metallic cylinder is upper, lower edge is bent respectively inwards, on rotor magnetic core, lower two ends are molded with plastic packaging housing, plastic packaging housing is extended into the pit, the bending part of metallic cylinder is extended into plastic packaging housing, rotor magnetic core, metallic cylinder is unremovably molded with plastic packaging housing and is solidified togather.Metallic cylinder of the present utility model shields to magnetic core, prevents magnetic core from splitting magnetic, isolates foreign.And when metal cylinder is rotated with rotor, derivative magnetic field produces damping to rotor, suppresses the fluctuation of rotor speed, plays the effect for reducing noise.
Description
Technical field
The utility model is related to technical field of motors, more particularly to the neck of the pump motor technology with magnetic core rotor structure
Domain.
Background technology
The draining pump used at present on washing machine is generally permanent magnet ac synchronous micromachine, and the stator of the motor generally makes
U-shaped iron core is used, the pole design of magnetic core is the two poles of the earth, using single Ferrite Material.
During draining pump operation, there are different air gaps in rotor from two concentric but different-diameter circles of U-shaped iron core, so that
The torsional moment differed in size is produced to rotor.This torsional moment difference can drive rotor to be rotated.But torsional moment is not constant
Constant, the big roundlet of particularly U-shaped iron core is that the breach between left and right arms of the branch in iron core, two-arm has air section.
When rotor turns over this section of region, due to suddenly becoming air dielectric from iron core medium, the magnetic field force suffered by rotor can produce play
Strong fluctuation, so the rotating speed of rotor is fluctuated according to the change of torsional moment, and the noise that vibrations caused by these fluctuations are caused is all
It is larger.
The content of the invention
The purpose of this utility model is the technical problem for solving prior art presence there is provided the motor after a kind of improvement,
It can reduce noise caused by rotor speed fluctuation.
In order to realize foregoing invention purpose, the utility model employs following technical scheme:One kind can reduce rotor
The water pump of the fluctuation of speed, including pump case and the impeller in pump case intracavitary, impeller is by including the motor of rotor magnetic core and stator core
Driving rotate, rotor magnetic core upper/lower terminal be provided with pit, rotor magnetic core peripheral closure be provided with a metallic cylinder, metallic cylinder it is upper,
Lower edge is bent respectively inwards, and rotor magnetic core upper/lower terminal is molded with plastic packaging housing, and plastic packaging housing extends into the pit
Interior, the bending part of metallic cylinder is extended into plastic packaging housing, and rotor magnetic core, metallic cylinder and plastic packaging housing are unremovably
Injection is solidified togather.
Plastic packaging housing is by covering in two plastic packaging end caps of the upper and lower end of rotor magnetic core and being affixed on the modeling of rotor magnetic core inner hole wall
Inner casing composition is sealed, plastic packaging inner casing center is provided with axis hole.
The center in the upper/lower terminal face of the rotor magnetic core is provided with oval shrinkage pool, and the exterior circumference of oval shrinkage pool is equal
It is furnished with several grooves.
The utility model is set outside a metallic cylinder, metallic cylinder and rotor magnetic core and rotor magnetic core in rotor magnetic core peripheral closure
Plastic-sealed body interfere, by injection be solidified togather.Metallic cylinder shields to magnetic core, prevents magnetic core from splitting magnetic, every
From foreign.And when metal cylinder is rotated with rotor, derivative magnetic field produces damping to rotor, suppresses rotor speed
Fluctuation, play reduce noise effect.
Brief description of the drawings
Fig. 1 is the axonometric drawing of rotor magnetic core.
Fig. 2 is rotor magnetic core elevation.
Fig. 3 is Fig. 2 A to sectional view.
Fig. 4 is Fig. 2 B to sectional view.
Fig. 5 is Fig. 4 D enlarged drawings.
Fig. 6 is the elevation of the utility model water pump.
Fig. 7 is Fig. 6 C to sectional view.
Wherein,
1- rotor magnetic cores, 1.1- grooves, 1.2- ellipse shrinkage pools, 2- metallic cylinders, 2.1- kinks, 3.1- plastic packagings end
Lid, 3.2 plastic packaging inner casings, 4- impellers, 5- pump cases, 6- rotor assembly, 7- pump covers, 8- stator cores,
Embodiment
It should be understood that upper and lower, left and right in this specification, directional terms are to be directed to upwards, downwards, to the left, to the right
The description in the orientation shown in accompanying drawing, these orientation are not restricted.If without certain illustrated, term herein to
Interior, outside, inside and outside, inner side, outside refer to the scope relative to part centre, such as using electrical axis as reference, interior and interior
Side refers to closer to or pointed to position or the orientation of electrical axis, and outer and outside refers to further from motor center position.In addition, term
Level, the term such as hold up, dangle and be not offered as requiring part abswolute level or pendency, and allowing to be slightly tilted.Such as level
More level is simply meant to for its direction opposed vertical, is not to represent that the structure is fully horizontal, but can be slightly tilted.
Motor used in water pump of the present utility model, it includes rotor magnetic core 1 and stator core, and rotor magnetic core is upper and lower
Two ends are provided with pit, and rotor magnetic core peripheral closure is provided with a metallic cylinder 2.As shown in Figures 4 and 5, metallic cylinder 2 is on upper and lower side
Edge is bent inwards to form kink 2.1 respectively, and the upper/lower terminal of rotor magnetic core 1 is molded with plastic packaging housing, and plastic packaging housing is extended into
In pit, bending part is extended into plastic packaging housing, and rotor magnetic core, metallic cylinder and plastic packaging housing three interfere, and is led to
Injection operation is crossed unremovably to be solidified togather.
Plastic packaging housing is by covering in two plastic packaging end caps 3.1 in rotor magnetic core upper/lower terminal portion and being affixed on rotor magnetic core endoporus
The plastic packaging inner casing 3.2 of wall is constituted, and the center of plastic packaging inner casing 3.2 is provided with axis hole.As shown in figure 1, being rotor magnetic core of the present utility model
1, center of both ends of the surface is provided with oval shrinkage pool 1.2 above and below it, and the exterior circumference of oval shrinkage pool 1.2 is evenly equipped with several grooves
1.1, plastic packaging housing is extended into when shrinkage pool 1.2 and groove 1.2 are for injection.
Rotor after coated metal cylinder and plastic packaging housing and rotating shaft are assembled together and constitute rotor assembly 6, rotor set
Part 6 is molded into motor after being assembled with stator core 8, assembling constitutes water pump to motor jointly with impeller 4, pump case 5, pump cover 7.Magnetic core turns
Son is tightened together with metallic cylinder by plastic packaging housing, and when rotation with rotor, metallic cylinder also carries out cutting stator iron
Core produces the magnetic induction line in magnetic field.And because the magnetic field near the big roundlet of stator core is change, according to the law of electromagnetic induction,
Magnetic flux is changed, and the electric current of change can be produced in metallic cylinder, i.e., final metallic cylinder can magnetic derived from powered generation
, according to Lenz's law, this derivative magnetic field can prevent the change in former magnetic field.Add after metallic cylinder 2, metallic cylinder can press down
The change in the former magnetic field of system, the rotation to rotor produces damping action, so as to reduce the fluctuation of rotor speed, plays reduction noise
Effect.Contrasted by the fluctuation of speed of rotor before and after simulation software pair plus metallic cylinder 2, it can be found that plus golden without adding
Belong to cylinder, the range of speeds 1796-4094r/min of rotor；Add after metallic cylinder, the range of speeds of rotor is in 2204-
3843r/min, rotor speed fluctuation range is reduced, and rotor operating is more steady, therefore is reduced because rotor rotation fluctuation is drawn
The noise risen.
The utility model includes but is not limited to above-described embodiment and content shown in the drawings, and other all are new with this practicality
There is the technical scheme of type the product structure of identical essentiality content to each fall within protection domain of the present utility model.
Claims (3)
- Reduce the water pump of the rotor fluctuation of speed, including pump case and the impeller in pump case intracavitary 1. a kind of, impeller by comprising The motor-driven rotation of rotor magnetic core and stator core, it is characterised in that：Rotor magnetic core upper/lower terminal is provided with pit, rotor magnetic Core peripheral closure is provided with a metallic cylinder, and metallic cylinder is bent respectively inwards at upper and lower edge, the injection of rotor magnetic core upper/lower terminal There is plastic packaging housing, plastic packaging housing is extended into the pit, the bending part of metallic cylinder is extended into plastic packaging housing, turn Sub- magnetic core, metallic cylinder and plastic packaging housing are unremovably molded and are solidified togather.
- 2. according to claim 1 reduce the water pump of the rotor fluctuation of speed, it is characterised in that：Plastic packaging housing is by cover In the upper and lower end of rotor magnetic core two plastic packaging end caps and be affixed on rotor magnetic core inner hole wall plastic packaging inner casing composition, plastic packaging inner casing Center is provided with axis hole.
- 3. according to claim 2 reduce the water pump of the rotor fluctuation of speed, it is characterised in that：The rotor magnetic core The center in upper/lower terminal face be provided with oval shrinkage pool, the exterior circumference of oval shrinkage pool is evenly equipped with several grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720086182.8U CN206490536U (en) | 2017-01-20 | 2017-01-20 | The water pump of the rotor fluctuation of speed can be reduced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720086182.8U CN206490536U (en) | 2017-01-20 | 2017-01-20 | The water pump of the rotor fluctuation of speed can be reduced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206490536U true CN206490536U (en) | 2017-09-12 |
Family
ID=59765760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720086182.8U Active CN206490536U (en) | 2017-01-20 | 2017-01-20 | The water pump of the rotor fluctuation of speed can be reduced |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206490536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032069A (en) * | 2020-08-26 | 2020-12-04 | 南京胜捷电机制造有限公司 | Brushless electronic pump of lightweight car |
| CN112166540A (en) * | 2018-06-05 | 2021-01-01 | Bsh家用电器有限公司 | Electric drive motor, wet rotor pump and household appliance |
-
2017
- 2017-01-20 CN CN201720086182.8U patent/CN206490536U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112166540A (en) * | 2018-06-05 | 2021-01-01 | Bsh家用电器有限公司 | Electric drive motor, wet rotor pump and household appliance |
| CN112032069A (en) * | 2020-08-26 | 2020-12-04 | 南京胜捷电机制造有限公司 | Brushless electronic pump of lightweight car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: Hanyu Group Co., Ltd. Address before: 529000 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. |
|
| CP03 | Change of name, title or address |