CN208835976U - A kind of brushless single phase motor - Google Patents
A kind of brushless single phase motor Download PDFInfo
- Publication number
- CN208835976U CN208835976U CN201821780381.XU CN201821780381U CN208835976U CN 208835976 U CN208835976 U CN 208835976U CN 201821780381 U CN201821780381 U CN 201821780381U CN 208835976 U CN208835976 U CN 208835976U
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- CN
- China
- Prior art keywords
- installation cavity
- fan
- single phase
- stationary part
- phase motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of brushless single phase motor, including there is the rotor portion of cyclic annular installation cavity, the intracorporal stationary part of cyclic annular installation cavity is arranged in, the cylindrical oiliness bearing for rotating support rotor portion and stationary part, and driving plate, wherein: rotor portion includes magnetic stripe, casing and fan, fan is equipped with cuplike cavity, casing is embedded in the cuplike cavity of fan, the intracorporal bottom centre of cotyloid cavity is equipped with the central axis of protrusion, and magnetic stripe is annular in shape to be mounted on the cyclic annular installation cavity formed in casing for placing stationary part；Stationary part includes the upper head plate and bottom plate for being equipped with the stator core of center mounting hole and being separately positioned on stator core two sides, upper head plate is located at the inside of cyclic annular installation cavity, bottom plate is located at the outside of cyclic annular installation cavity, and the coil with stator core insulation is wound between upper head plate and bottom plate.The motor of the utility model does not have brush, and without mechanical wear, the service life is long, and structure is simple, good reliability, and disassembly is reprocessed conveniently.
Description
Technical field
The utility model relates to technical field of motors, and in particular to a kind of brushless single phase motor, it is low power to be applied to
Fan class product.
Background technique
It is conventionally used to the motor product of microminiature fan class, the brush direct current motors such as mostly 300/310 (model).There is brush electricity
Fixed main pole and brush are installed on the stator of machine, armature winding and commutator are installed on rotor.The electricity of DC power supply
Armature winding can be entered by brush and commutator, generate armature supply, the magnetic field and main field phase interaction that armature supply generates
With electromagnetic torque is generated, make motor rotation band dynamic load.Due to the presence of brush and commutator, so that structure is complicated, and in energy
It measures in conversion process, since there are mechanical frictions between brush and commutator, so that electrical machinery life is very short, while brush is being worn
While, and the deterioration of commutation condition is exacerbated, be also easy to produce spark, cause serious EMI problem, poor reliability, failure is more.
Utility model content
The utility model in order to solve the above problems existing in the present technology, provides a kind of brushless single phase motor, with solution
There are poor reliability for certainly existing brush direct current motor, and failure is more, and maintenance workload is big, and the service life is short, and commutation spark is also easy to produce electromagnetism
The problem of the defects of interference.
To achieve the above object, the utility model provides a kind of brushless single phase motor, including has cyclic annular installation cavity
Rotor portion, setting in the intracorporal stationary part of the cyclic annular installation cavity, for rotating support rotor portion and stationary part
Cylindrical oiliness bearing and driving plate, in which:
The rotor portion includes magnetic stripe, casing and fan, and the fan is equipped with cuplike cavity, and the casing is embedded in wind
In the cuplike cavity of fan, the intracorporal bottom centre of cotyloid cavity is equipped with the central axis of protrusion, the magnetic stripe installation annular in shape
The cyclic annular installation cavity for placing stationary part is formed in casing；
The stationary part includes the stator core, upper head plate and bottom plate for being equipped with center mounting hole, the upper head plate
The stator core two sides are separately positioned on bottom plate, the upper head plate is located at the inside of cyclic annular installation cavity, the lower end
Plate is located at the outside of cyclic annular installation cavity, and the coil with stator core insulation is wound between upper head plate and bottom plate；
The outer ring of the cylinder oiliness bearing is nested in the center mounting hole of stationary part, and inner ring is attached to fan
Central axis on；
The driving plate is made of single Hall element, is mounted on the end of the bottom plate of the external side of cyclic annular installation cavity
On face, and it is electrically connected with coil.
As the further preferred technical solution of the utility model, the stator core is by several round monolithics by from riveting
The mode laminated is constituted, and the center of circle decentraction of adjacent monolithic, so that stator core outer surface forms gradual change air gap.
As the further preferred technical solution of the utility model, the material of the casing is galvanized steel plain sheet, the magnetic stripe
It is pressed into casing by aerostatic press interference fit.
As the further preferred technical solution of the utility model, the multi-disc fan blade of the fan is arranged in cup at equal intervals
On shape cavity extrados.
As the further preferred technical solution of the utility model, the both ends of the cylinder oiliness bearing are further respectively had
Rubber ring for vibration and noise reducing.
As the further preferred technical solution of the utility model, the top of the central axis is equipped with card slot, the card slot
Inside it is connected with the nylon6 chips for fixed rotor part and cylindrical oiliness bearing.
As the further preferred technical solution of the utility model, the brushless single phase motor further includes a cylindric machine
Seat, the inner ring of the base and cylindrical oiliness bearing outer ring nested encryptions, the outer ring of base is nested in the center of stationary part
In mounting hole.
The brushless single phase motor of the utility model can achieve it is following the utility model has the advantages that
1) compact-sized, use magnetic stripe as excitation source, reduces costs；
2) brush is not used, without mechanical wear, the service life is long；
3) driving plate production is simple, is driven using single Hall, does not use power switch tube, greatly reduces cost；
4) there is no electromagnetic interference and motor noise problem；
5) structure is simple, is suitable for low power fan class product, good reliability, and disassembly is reprocessed conveniently.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram for the example that the utility model brushless single phase motor provides；
Fig. 2 is the decomposition diagram of Fig. 1；
Fig. 3 is the front view of the utility model brushless single phase motor；
Fig. 4 is the A-A cross-sectional view of Fig. 3.
In figure: 1, fan, 2, rubber ring, 3, casing, 4, magnetic stripe, 5, upper head plate, 6, stator core, 7, bottom plate, 8, circle
Cylindricality oiliness bearing, 9, driving plate, 10, nylon6 chips.
The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.
Specific embodiment
Below in conjunction with attached drawing and specific embodiment, the utility model is described further.In preferred embodiment
Cited such as "upper", "lower", "left", "right", " centre " and " one " term, only being illustrated convenient for narration, rather than to
The enforceable range of the utility model is limited, relativeness is altered or modified, under the content of no substantial changes in technology, when also
It is considered as the enforceable scope of the utility model.
As Figure 1-Figure 4, brushless single phase motor includes with the cyclic annular rotor portion for installing cavity, is arranged in the ring
The intracorporal stationary part of shape installation cavity, the cylindrical oiliness bearing 8 for rotating support rotor portion and stationary part, and drive
Movable plate 9, in which:
The rotor portion includes magnetic stripe 4, casing 3 and fan 1, and the fan 1 is equipped with cuplike cavity, the fan 1
Multi-disc fan blade is arranged on cuplike cavity extrados at equal intervals, and the casing 3 is embedded in the cuplike cavity of fan 1, described
The intracorporal bottom centre of cotyloid cavity is equipped with the central axis of protrusion, and annular in shape be mounted in casing 3 of the magnetic stripe 4 is used for being formed
Place the cyclic annular installation cavity of stationary part；Specifically, the cuplike cavity is cylinder；
The stationary part includes the stator core 6, upper head plate 5 and bottom plate 7 for being equipped with center mounting hole, the upper end
Plate 5 and bottom plate 7 are separately positioned on 6 two sides of stator core, and the upper head plate 5 is located at the inside of cyclic annular installation cavity, institute
The outside that bottom plate 7 is located at cyclic annular installation cavity is stated, and is wound with the line to insulate with stator core 6 between upper head plate 5 and bottom plate 7
Circle；
The outer ring of the cylinder oiliness bearing 8 is nested in the center mounting hole of stationary part, and inner ring is attached to wind
On the central axis of fan 1；
The driving plate 9 is made of single Hall element, is mounted on the bottom plate 7 of the external side of cyclic annular installation cavity
It on end face, and is electrically connected with coil, the end of a thread and line tail of coil, which respectively correspond, to be welded on the fixed pad of driving plate 9, with structure
At circuit.
In specific implementation, the stator core 6 is made of by way of laminating from riveting several round monolithics, adjacent list
Piece decentraction, so that 6 outer surface of stator core forms gradual change air gap, the orientation starting of the available needs of gradual change air gap turns
Square effectively prevents the dead point of motor.
In specific implementation, the material of the casing 3 is galvanized steel plain sheet, and the magnetic stripe 4 is interference fitted by aerostatic press and is pressed into
In casing 3, so that circuit is provided for magnetic field, it is compact-sized, use magnetic stripe 4 as excitation source, and reduce costs.Tool
During body is implemented, casing 3 is formed by cold rolling.
In specific implementation, the both ends of the cylinder oiliness bearing 8 further respectively have the rubber ring 2 for vibration and noise reducing,
The top of the central axis is equipped with card slot, is connected in the card slot for fixed rotor part and cylindrical oiliness bearing 8
Nylon6 chips 10, nylon6 chips 10 are outer just as circlip, play fixed rotor, so that rotor portion when running at high speed, will not take off
From cylindrical oiliness bearing 8.
In specific implementation, the brushless single phase motor further includes a cylindric base, the inner ring and cylinder of the base
8 outer ring nested encryptions of shape oiliness bearing, the outer ring of base is nested in the center mounting hole of stationary part.
The working principle of the brushless single phase motor of the utility model are as follows: driving plate 9 detects rotor by single Hall element
Magnet steel polarity output signal control driving circuit, a commutating period is divided into two equal shapes by position sensor
State is powered to winding coil, and interaction generates orientation electromagnetic torque between the electric current and p-m rotor of coil, makes motor
Rotation.In use process, it is only necessary to power positive cathode is welded at VCC the and GND pad in driving plate 9, logical direct current is
It can.
The brushless single phase motor of the utility model compared with traditional brushed DC motor, have it is compact-sized, use magnetic stripe 4
As excitation source, reduce costs；Without using brush, without mechanical wear, the service life is long；Driving plate 9 makes simply, using list
Hall driving, does not use power switch tube, greatly reduces cost；There is no electromagnetic interference and motor noise problem；Structure is simple,
Suitable for low power 1 class product of fan, good reliability, and disassembly is reprocessed conveniently.
Although those skilled in the art should manage the foregoing describe specific embodiment of the present utility model
Solution, these are merely examples, various changes or modifications can be made to present embodiment, without departing from the original of the utility model
Reason and essence, the protection scope of the utility model are only limited by the claims that follow.
Claims (7)
1. a kind of brushless single phase motor, which is characterized in that including there is the rotor portion of cyclic annular installation cavity, be arranged in the ring
The intracorporal stationary part of shape installation cavity, the cylindrical oiliness bearing for rotating support rotor portion and stationary part, and drive
Movable plate, in which:
The rotor portion includes magnetic stripe, casing and fan, and the fan is equipped with cuplike cavity, and the casing is embedded in fan
In cuplike cavity, the intracorporal bottom centre of cotyloid cavity is equipped with the central axis of protrusion, and the magnetic stripe is annular in shape to be mounted on machine
The cyclic annular installation cavity for placing stationary part is formed in shell；
The stationary part includes the stator core, upper head plate and bottom plate for being equipped with center mounting hole, and the upper head plate is under
End plate is separately positioned on the stator core two sides, and the upper head plate is located at the inside of cyclic annular installation cavity, the bottom plate position
In the outside of cyclic annular installation cavity, and the coil with stator core insulation is wound between upper head plate and bottom plate；
The outer ring of the cylinder oiliness bearing is nested in the center mounting hole of stationary part, and inner ring is attached in fan
In mandrel；
The driving plate is made of single Hall element, is mounted on the end face of the bottom plate of the external side of cyclic annular installation cavity
On, and be electrically connected with coil.
2. brushless single phase motor according to claim 1, which is characterized in that the stator core is led to by several round monolithics
It crosses the mode laminated from riveting to constitute, and the center of circle decentraction of adjacent monolithic, so that stator core outer surface forms gradual change air gap.
3. brushless single phase motor according to claim 2, which is characterized in that the material of the casing is galvanized steel plain sheet, institute
Magnetic stripe is stated to be pressed into casing by aerostatic press interference fit.
4. brushless single phase motor according to claim 3, which is characterized in that the multi-disc fan blade of the fan is set at equal intervals
It sets on cuplike cavity extrados.
5. brushless single phase motor according to claim 4, which is characterized in that the both ends of the cylinder oiliness bearing are also divided
The rubber ring of vibration and noise reducing She You be used for.
6. brushless single phase motor according to claim 5, which is characterized in that the top of the central axis is equipped with card slot, institute
State the nylon6 chips being connected in card slot for fixed rotor part and cylindrical oiliness bearing.
7. brushless single phase motor according to any one of claims 1 to 6, which is characterized in that the brushless single phase motor is also
Including a cylindric base, the inner ring of the base and cylindrical oiliness bearing outer ring nested encryptions, the outer ring of base are nested
In the center mounting hole of stationary part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780381.XU CN208835976U (en) | 2018-10-31 | 2018-10-31 | A kind of brushless single phase motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780381.XU CN208835976U (en) | 2018-10-31 | 2018-10-31 | A kind of brushless single phase motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208835976U true CN208835976U (en) | 2019-05-07 |
Family
ID=66319833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821780381.XU Expired - Fee Related CN208835976U (en) | 2018-10-31 | 2018-10-31 | A kind of brushless single phase motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208835976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404311A (en) * | 2020-04-01 | 2020-07-10 | 宁波兴泰科技有限公司 | Motor and ceiling fan |
-
2018
- 2018-10-31 CN CN201821780381.XU patent/CN208835976U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404311A (en) * | 2020-04-01 | 2020-07-10 | 宁波兴泰科技有限公司 | Motor and ceiling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20211031 |