CN207069783U - A kind of low-noise direct-drive motor - Google Patents
A kind of low-noise direct-drive motor Download PDFInfo
- Publication number
- CN207069783U CN207069783U CN201720758200.2U CN201720758200U CN207069783U CN 207069783 U CN207069783 U CN 207069783U CN 201720758200 U CN201720758200 U CN 201720758200U CN 207069783 U CN207069783 U CN 207069783U
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- China
- Prior art keywords
- motor
- groove
- sound
- halfpace
- inner housing
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Abstract
The utility model discloses a kind of low-noise direct-drive motor, including motor housing body and motor inner housing, it is hollow chamber between the motor housing body and motor inner housing, halfpace groove is provided with the medial surface of the motor housing body, cylinder groove and sound-absorbing hole, the outer surface of the motor inner housing is provided with watt prismatic, bearing is plugged with the middle part of the left and right ends of the motor housing body and motor inner housing, the middle part of the bearing is plugged on the left and right sides of motor rotary shaft, coil rotor is socketed with the middle part of the motor rotary shaft, the inwall side of the motor inner housing is provided with permanent magnet.The low-noise direct-drive motor, by the structure provided with bearing, it greatly reducing the frictional force of rotation；By the structure provided with hollow chamber, corrugated, halfpace groove and cylinder groove, the transmission of direct driving motor internal sound can be weakened to greatest extent, and hollow chamber can completely cut off the propagation of sound.
Description
Technical field
Technical field of motors is the utility model is related to, specially a kind of low-noise direct-drive motor.
Background technology
Direct driving motor, the abbreviation of direct drive motor.Motor is referred mainly in driving load, is not required to fill by transmission
Put, the key benefit of direct driving motor mainly avoids having used the drive apparatus such as driving belt, and these transmission parts are exactly
The higher part of fault rate in system, so using the system of direct driving motor, technically, there should be lower fault rate,
Common direct driving motor noise for other motors is larger, brings larger fiber crops in domestic. applications to direct driving motor
Tired, the dominant noise source of motor product is from two aspects, the noise first, machinery rubs, second, electromagnetic noise, therefore it is proposed that
A kind of low-noise direct-drive motor.
Utility model content
The purpose of this utility model is to provide a kind of low-noise direct-drive motor, to solve what is proposed in above-mentioned background technology
Problem.
To achieve the above object, the utility model provides following technical scheme：A kind of low-noise direct-drive motor, including motor
Shell body and motor inner housing, are hollow chamber between the motor housing body and motor inner housing, the motor housing body it is interior
Halfpace groove, cylinder groove and sound-absorbing hole are provided with side, the outer surface of the motor inner housing is provided with watt prismatic, the motor
Bearing is plugged with the middle part of the left and right ends of shell body and motor inner housing, the middle part of the bearing is plugged on motor rotary shaft
The left and right sides, coil rotor is socketed with the middle part of the motor rotary shaft, and the inwall side of the motor inner housing is provided with forever
Long magnet.
Preferably, the halfpace groove and cylinder groove are equipped with several, and the quantity of the halfpace groove and cylinder groove is equal, institute
State halfpace groove and cylinder groove to be uniformly arranged in motor housing body on side, the diameter of the lower end section of the halfpace groove is equal to
The section of cylinder groove diameter, the halfpace groove are located at the upper end of cylinder groove, some sound absorptions are provided with the lower surface of the cylinder groove
Hole, the sound-absorbing hole is irregular to be arranged on the lower surface of cylinder groove.
Preferably, one layer of acoustical cotton is pasted on the medial surface of the motor housing body.
Preferably, the rough surface of described watt of prismatic.
Compared with prior art, the beneficial effects of the utility model are：The low-noise direct-drive motor, by provided with bearing
Structure, enable to motor rotary shaft to rotate more smooth, greatly reducing the frictional force of rotation；By provided with hollow
Room, corrugated, the structure of halfpace groove and cylinder groove, hollow chamber can completely cut off the propagation of sound, corrugated, halfpace groove and cylinder groove
Structure enable to sound to produce unrestrained divergent state, gradually weaken acoustic energy, while sound-absorbing hole can also absorb sound
Energy, after filtering of the sound by structure on motor housing body and motor inner housing caused by inside the direct driving motor, sound energy
It is enough greatly to be weakened, the transmission of direct driving motor internal sound is weakened to greatest extent.
Brief description of the drawings
Fig. 1 is the utility model structure sectional view；
Fig. 2 is the utility model structure halfpace groove and cylinder groove top view；
Fig. 3 is the utility model structure halfpace groove and cylinder groove sectional view.
In figure：1 motor housing body, 11 cylinder grooves, 12 halfpace grooves, 13 sound-absorbing hole, 2 motor inner housings, 3 hollow chambers, 4 watts of ribs
Shape, 5 bearings, 6 motor rotary shafts, 7 coil rotors, 8 permanent magnets.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of low-noise direct-drive motor, including outside motor
Housing 1 and motor inner housing 2, motor housing body 1 and motor inner housing 2 are the shell of low-noise direct-drive motor, outside the motor
One layer of acoustical cotton is pasted on the medial surface of housing 1, acoustical cotton can absorb acoustic energy.In the motor housing body 1 and motor
It is hollow chamber 3 between housing 2, hollow chamber 3 can completely cut off the propagation of sound, be opened on the medial surface of the motor housing body 1
There are halfpace groove 12, cylinder groove 11 and sound-absorbing hole 13, corrugated 4, halfpace groove 12 and cylinder groove 11 enable to sound to produce unrestrained hair
Bulk state, gradually weaken acoustic energy, while sound-absorbing hole 13 can also absorb acoustic energy, weaken straight drive to greatest extent
The transmission of motor internal sound.The halfpace groove 12 and cylinder groove 11 are equipped with several, the halfpace groove 12 and cylinder groove 11
Quantity it is equal, the halfpace groove 12 and cylinder groove 11 are uniformly arranged on the medial surface of motor housing body 1, the halfpace groove 12
The diameter of lower end section be equal to the section of the diameter of cylinder groove 11, the halfpace groove 12 is located at the upper end of cylinder groove 11, the circle
Some sound-absorbing hole 13, the irregular lower surface for being arranged in cylinder groove 11 of sound-absorbing hole 13 are provided with the lower surface of post groove 11
On.The outer surface of the motor inner housing 2 is provided with watt prismatic 4, the rough surface of described watt of prismatic 4.The motor housing
Bearing 5 is plugged with the middle part of the left and right ends of body 1 and motor inner housing 2, the middle part of the bearing 5 is plugged on motor rotary shaft 6
The left and right sides, the middle part of the motor rotary shaft 6 is socketed with coil rotor 7, set on the inwall side of the motor inner housing 2
There is permanent magnet 8, rotated by the motor rotary shaft 6 of coil rotor 7 and the structure direct driving motor of permanent magnet 8, straight
When driving motor rotation, it is more smooth that bearing 5 enables to motor rotary shaft 6 to rotate, and greatly reducing the frictional force of rotation.
Operation principle：Low-noise direct-drive motor is powered, by coil rotor 7 and forever when being operated to direct driving motor
The structure of long magnet 8 causes the motor rotary shaft 6 of direct driving motor to rotate, and when direct driving motor rotates, bearing 5 enables to electronic
Machine rotating shaft 6 rotates more smooth, greatly reducing the frictional force of rotation, and sound caused by inside the direct driving motor passes through electricity
On machine shell body 1 and motor inner housing 2 after the filtering of structure, sound can greatly be weakened, and hollow chamber 3 can completely cut off sound
Propagation, corrugated 4, halfpace groove 12 and cylinder groove 11 enable to sound to produce unrestrained divergent state, gradual to weaken sound energy
Amount, while sound-absorbing hole 13 can also absorb acoustic energy, weaken the transmission of direct driving motor internal sound to greatest extent.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of low-noise direct-drive motor, including motor housing body (1) and motor inner housing (2), it is characterised in that：The motor
It is hollow chamber (3) between shell body (1) and motor inner housing (2), halfpace groove is provided with the medial surface of the motor housing body (1)
(12), cylinder groove (11) and sound-absorbing hole (13), the outer surface of the motor inner housing (2) are provided with watt prismatic (4), the electricity
Bearing (5), the equal grafting in middle part of the bearing (5) are plugged with the middle part of the left and right ends of machine shell body (1) and motor inner housing (2)
Coil rotor (7) is socketed with the middle part of the left and right sides of motor rotary shaft (6), the motor rotary shaft (6), in the motor
The inwall side of housing (2) is provided with permanent magnet (8).
A kind of 2. low-noise direct-drive motor according to claim 1, it is characterised in that：The halfpace groove (12) and cylinder groove
(11) several are equipped with, the quantity of the halfpace groove (12) and cylinder groove (11) is equal, the halfpace groove (12) and cylinder groove
(11) uniformly it is arranged on motor housing body (1) medial surface, the diameter of the lower end section of the halfpace groove (12) is equal to cylinder
The section of groove (11) diameter, the halfpace groove (12) are located at the upper end of cylinder groove (11), on the lower surface of the cylinder groove (11)
Some sound-absorbing hole (13) are provided with, the sound-absorbing hole (13) is irregular to be arranged on the lower surface of cylinder groove (11).
A kind of 3. low-noise direct-drive motor according to claim 1, it is characterised in that：The motor housing body (1) it is interior
One layer of acoustical cotton is pasted on side.
A kind of 4. low-noise direct-drive motor according to claim 1, it is characterised in that：The surface of described watt of prismatic (4) is thick
It is rough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720758200.2U CN207069783U (en) | 2017-06-27 | 2017-06-27 | A kind of low-noise direct-drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720758200.2U CN207069783U (en) | 2017-06-27 | 2017-06-27 | A kind of low-noise direct-drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207069783U true CN207069783U (en) | 2018-03-02 |
Family
ID=61506553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720758200.2U Expired - Fee Related CN207069783U (en) | 2017-06-27 | 2017-06-27 | A kind of low-noise direct-drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207069783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912320A (en) * | 2019-12-12 | 2020-03-24 | 吴王珠 | Low-noise new energy automobile motor |
-
2017
- 2017-06-27 CN CN201720758200.2U patent/CN207069783U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912320A (en) * | 2019-12-12 | 2020-03-24 | 吴王珠 | Low-noise new energy automobile motor |
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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: 20180302 |