CN115864720A - Brushless direct current motor with good silencing effect - Google Patents
Brushless direct current motor with good silencing effect Download PDFInfo
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- CN115864720A CN115864720A CN202211517441.XA CN202211517441A CN115864720A CN 115864720 A CN115864720 A CN 115864720A CN 202211517441 A CN202211517441 A CN 202211517441A CN 115864720 A CN115864720 A CN 115864720A
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- 230000001743 silencing effect Effects 0.000 title abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 46
- 230000000670 limiting effect Effects 0.000 claims abstract description 31
- 229920000742 Cotton Polymers 0.000 claims description 46
- 239000003973 paint Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 abstract description 50
- 230000002829 reductive effect Effects 0.000 abstract description 23
- 239000002184 metal Substances 0.000 abstract description 11
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000007769 metal material Substances 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 18
- 230000009467 reduction Effects 0.000 description 17
- 230000017525 heat dissipation Effects 0.000 description 13
- 239000003974 emollient agent Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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Abstract
The invention provides a brushless direct current motor with a good silencing effect, which relates to the technical field of brushless direct current motors and comprises a shell, wherein a rotating shaft is rotatably arranged on the inner wall of the shell, a rotor is fixedly arranged on the side wall of the rotating shaft, a smearing device is arranged on the surface of the shell, the smearing device comprises a telescopic pipe, a fixed pipe and a connecting pipe of a storage structure, a fixed strip and a sleeve frame with a limiting effect, a limiting groove and an arc-shaped groove with a drainage effect, the arc-shaped groove is formed in the side wall of the rotating shaft, and a plurality of limiting grooves are uniformly formed in the inner side of the shell. According to the invention, the coating device is arranged, so that the coating of the lubricant on the switching part of the rotating shaft and the shell is facilitated, the friction force between the shell and the metal of the rotating shaft is reduced, the phenomenon that the rotating shaft and the shell are made of metal materials, and large friction sound between the metal is easily generated due to the fact that the rotating shaft and the shell are not lubricated for a long time, and further certain noise is generated is reduced, and the silencing effect of the brushless direct current motor is improved as much as possible.
Description
Technical Field
The invention relates to the technical field of brushless direct current motors, in particular to a brushless direct current motor with a good silencing effect.
Background
The brushless dc motor is composed of a motor body and a driver, and is a typical electromechanical integration product, and the brushless dc motor refers to a motor without a brush and a commutator (or a collector ring), which is also called a commutator-free motor, and is adopted by most devices.
Chinese patent application CN104272567a discloses a brushless dc motor comprising a plurality of magnets positioned at a distance from each other on a circular structure and a plurality of solenoids each arranged around a static solenoid housing, wherein the solenoid housing is configured with a void portion, in one embodiment of the invention, permanent magnets and a high magnetic permeability material positioned between the permanent magnets, alone or together with one or more structural rings, form the rotor of the motor, which is mechanically connected (e.g. by toothed elements) to a power transmission device. In another aspect, the invention relates to a method for operating a brushless dc motor, the method comprising moving a plurality of magnets in quasi-linear motion with respect to a plurality of solenoids along an axial direction of the solenoids.
However, the above patents and prior arts have the following drawbacks:
in the process that the motor functions, the rotating shaft can rotate with the shell, and the rotating shaft and the shell are connected in a switching mode to be dripped with lubricant, so that large friction can be generated between the rotating shaft and the shell easily, and the rotating shaft and the shell are made of metal materials, so that large friction sound between metals can be generated easily without lubrication for a long time, certain noise is generated, and the using effect of the motor is reduced.
Disclosure of Invention
The invention aims to solve the defect that a motor switching part is inconvenient to coat a lubricant in the prior art, and provides a brushless direct current motor with a good silencing effect.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an effectual brushless DC motor of silence, includes the shell, the inner wall of shell rotates installs the pivot, the lateral wall fixed mounting of pivot has the rotor, the surface of shell is equipped with paints the device, paint the device including the flexible pipe of storage structure, fixed pipe and connecting pipe, fixed strip and the cover frame that has limiting displacement have the spacing groove and the arc wall of drainage effect.
The effect that above-mentioned part reaches does: through setting up and daubing the device, made things convenient for the daubing of emollient in pivot and shell switching department, reduced the frictional force between shell and the pivot metal, reduced because pivot and shell are metal material, do not lubricate for a long time and produce the great friction sound between the metal easily, and then produced the phenomenon of certain noise, improved brushless DC motor's silence effect as far as possible.
Preferably, the lateral wall at the pivot is seted up to the arc wall, a plurality of the inboard at the shell is evenly seted up to the spacing groove, spacing groove and arc wall are linked together, fixed strip fixed mounting is at the lateral wall of shell, fixed pipe fixed mounting is at the inner wall of fixed strip, fixed pipe runs through the inboard of shell, flexible pipe is linked together with fixed pipe, set frame fixed mounting is on the surface of shell, the inner wall sliding connection of connecting pipe and set frame, flexible pipe is linked together with the connecting pipe, flexible pipe is the rugosity structure, the aperture has been seted up on the surface of flexible pipe, and the inner wall of aperture splices there is the rubber buffer.
The effect that above-mentioned part reaches is: the lubricant is injected through the needle tube from the rubber plug on the telescopic tube, when the lubricant is required to be smeared between the rotating shaft and the shell, the connecting tube at the end side position is pressed, the connecting tube can extrude the telescopic tube to be compressed, the lubricant can smear the side wall of the rotating shaft in the rotating process of the rotating shaft, the friction force in the rotating process between the rotating shaft and the shell is reduced, and the noise in the using process of the motor is further reduced.
Preferably, the inner wall fixed mounting of fixed pipe has two locating pieces, two the equal sliding connection in inside of locating piece has the slide bar, two the terminal surface fixed mounting of slide bar has the piston, one side fixed mounting that locating piece and piston are close to each other has first spring, a plurality of drainage groove has evenly been seted up to the distolateral inner wall of fixed pipe.
The effect that above-mentioned part reaches is: the pressure in the expansion pipe can increase, the piston can receive the inside atmospheric pressure of flexible pipe effect and promote to being located the position in the middle of a plurality of drainage groove, emollient can flow along the drainage groove at the inner wall of arc wall this moment, the emollient of arc wall inner wall can flow to the inner wall of a plurality of spacing groove, thereby made things convenient for the temporary storage to emollient between shell and the pivot, loosen the connecting pipe, flexible pipe can reset owing to self spring action, the piston also can receive first spring tension effect on the locating piece and reset this moment, the continuation of emollient has been avoided trickling.
Preferably, the inner wall of the limiting groove on the shell is rotatably provided with a shaft lever, the side wall of the shaft lever is uniformly and fixedly connected with a plurality of sponge sleeves, and the side wall of each sponge sleeve is uniformly and fixedly connected with a plurality of sponge pieces.
The effect that above-mentioned part reaches is: when the limiting groove inner lubricant is used more, relative motion between the rotating shaft and the sponge sheet can realize driving rotation of the shaft rod, and the sponge sheet on the sponge sleeve can rotate on the limiting groove inner wall, so that the limiting groove bottom side lubricant is conveniently used, and the utilization rate of the limiting groove inner wall lubricant is improved.
Preferably, the lateral wall of pivot is equipped with drives commentaries on classics device, it includes two dead levers, two to drive commentaries on classics device the dead lever all is connected with the fixed surface of shell, two the one end fixed mounting that the shell was kept away from to the dead lever has the spacing ring, the inner wall of spacing ring rotates and installs the change, two lateral wall fixedly connected with of change have the connecting strip that is "L" type structure, the one end fixed mounting that flexible pipe was kept away from to the connecting pipe has the drive block, the drive block is "isosceles triangular prism" structure, the preformed groove has been seted up to the lateral wall of pivot, the lateral wall slidable mounting of pivot has the drive ring, the lateral wall fixed mounting of drive ring has a plurality of sand grip, the distolateral face of drive ring is the conical surface structure.
The effect that above-mentioned part reaches is: when lubricant is smeared at the joint of the rotating shaft and the shell, the driving ring can be directly slid and positioned on the surface of the rotating shaft, the driving ring is sleeved on the inner wall of the rotating ring, the reserved groove plays a role in limiting the moving direction of the driving ring, the conical surface structure of the driving ring facilitates the sleeving work between the driving ring and the rotating ring, at the moment, the motor can drive the rotating shaft to rotate, the rotating shaft can drive the driving ring to rotate, the connecting strips on the rotating ring can rotate relative to the driving blocks in the rotating process, when the connecting strips and the driving blocks perform relative motion, the connecting strips and the inclined surfaces of the driving blocks perform relative motion, the driving blocks can be extruded, the extrusion work of the lubricant is realized, and the periodical adding work of the lubricant at the joint of the shell and the rotating shaft is facilitated.
Preferably, the side wall of the driving ring is fixedly connected with two positioning strips, and a supporting strip is rotatably mounted on one side of each of the two positioning strips, which is close to each other.
The effect that above-mentioned part reaches is: the rotating support bar is clamped on the inner wall of the preformed groove, and the temporary support for the position of the driving ring after moving can be realized.
Preferably, the inner wall of the preformed groove on the rotating shaft is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the surface of the driving ring.
The effect that above-mentioned part reaches does: the driving ring can be driven by the elastic force of the second spring to extrude the supporting strip on the inner wall of the reserved groove.
Preferably, the surface of shell is equipped with the device of making an uproar of falling, the device of making an uproar of falling includes soundproof cotton, soundproof cotton overlaps the surface at the shell, a plurality of recess has evenly been seted up to soundproof cotton's lateral wall, two connective bars of fixed surface of shell, two the equal fixed mounting in one end that the shell was kept away from to the connective bar has the cone, the even fixed connection in surface of cone has a plurality of awl thorn.
The effect that above-mentioned part reaches does: with soundproof cotton cover at the surface of shell, with soundproof cotton's both ends cover on the surface of cone, the cone has made things convenient for the work of puncturing to soundproof cotton, after soundproof cotton overlaps on the connective bar, soundproof cotton can prick into the awl thorn once more inside, has reduced the condition that soundproof cotton took out from the shell, has improved the compactness of being connected between soundproof cotton and the shell, can realize this moment covering the shell to the mesh of making an uproar has been fallen to the shell.
Preferably, the even fixedly connected with a plurality of fin of surface of shell, the fin is the arc structure, the even fixedly connected with a plurality of blade of lateral wall of fin, a plurality of preformed hole has evenly been seted up on the surface of blade.
The effect that above-mentioned part reaches is: and the arrangement of the radiating fins ensures the normal heat dissipation of the shell as far as possible, the preformed holes on the blades increase the radiating surfaces of the blades, and the radiating effect of the shell is further improved.
Preferably, both ends of the soundproof cotton are fixedly connected with elastic rings, and the elastic rings are of circular ring structures.
The effect that above-mentioned part reaches is: the elastic ring can be contracted at the end side position of the shell, so that the tightness of the soundproof cotton attached to the surface of the shell is improved, and the noise reduction effect on the surface of the shell is improved.
Compared with the prior art, the invention has the advantages and positive effects that:
1. in the invention, the smearing device is arranged, the lubricant is injected from the rubber plug on the extension tube through the needle tube, when lubricant is required to be smeared between the rotating shaft and the outer shell, the connecting pipe at the end side is pressed, the connecting pipe can extrude the telescopic pipe to compress, the pressure intensity in the telescopic pipe can be increased, the piston can be pushed to the position positioned in the middle of the plurality of drainage grooves under the action of the air pressure in the telescopic pipe, the lubricant can flow down to the inner wall of the arc-shaped groove along the drainage grooves, the lubricant on the inner wall of the arc-shaped groove can be drained to the inner walls of the plurality of limiting grooves, thereby facilitating the temporary storage of the lubricant between the shell and the rotating shaft, loosening the connecting pipe, resetting the telescopic pipe under the elastic action of the telescopic pipe, resetting the piston under the tension action of the first spring on the positioning block at the moment, avoiding the continuous flowing of the lubricant, in the rotating process of the rotating shaft, the soaked sponge sleeve and the soaked sponge sheet can paint the side wall of the rotating shaft, so that the friction force between the rotating shaft and the shell in the rotating process is reduced, thereby reducing the noise of the motor in the using process, when the lubricant in the limit groove is used more, the relative motion between the rotating shaft and the sponge sheet can realize the driving rotation of the shaft lever, the sponge sheet on the sponge sleeve can rotate on the inner wall of the limit groove, thereby facilitating the use of the lubricant at the bottom side of the limit groove, improving the utilization rate of the lubricant at the inner wall of the limit groove, by arranging the smearing device, the smearing of the lubricant at the joint of the rotating shaft and the shell is facilitated, the friction force between the shell and the metal of the rotating shaft is reduced, the phenomenon that the rotating shaft and the shell are made of metal materials, and large friction sound between the metal is easily generated due to the fact that the rotating shaft and the shell are not lubricated for a long time is reduced, and then certain noise phenomenon is generated, and the mute effect of the brushless direct current motor is improved as much as possible.
2. When lubricant needs to be coated at the joint of the rotating shaft and the shell, the driving ring positioned on the surface of the rotating shaft can directly slide, the driving ring is sleeved on the inner wall of the rotating ring, the reserved groove plays a role of limiting the moving direction of the driving ring, the rotating support bar is clamped on the inner wall of the reserved groove at the moment, the driving ring can be driven by the elastic force of a second spring to drive the inner wall of the reserved groove, the temporary support of the position of the driving ring after moving can be realized at the moment, the conical surface structure of the driving ring facilitates the sleeving work with the rotating ring, the motor can drive the rotating shaft to rotate at the moment, the rotating shaft can drive the driving ring to rotate, the driving ring can drive the rotating ring to rotate, the connecting strips on the rotating ring can move relative to the driving blocks in the rotating process, when the connecting strips and the driving blocks move relative to each other, the connecting strips and the inclined surfaces of the driving blocks can move relative to each other when the connecting strips and the driving blocks move relative to each other, the driving blocks can be extruded to realize the extrusion work of the lubricant, the rotating ring can be conveniently added at the rotating ring, and the lubricant can be conveniently added to the rotating ring.
3. According to the invention, the noise reduction device is arranged, the soundproof cotton is sleeved on the outer surface of the shell, two ends of the soundproof cotton are sleeved on the surface of the cone, the cone facilitates the penetration work of the soundproof cotton, after the soundproof cotton is sleeved on the connecting rod, the soundproof cotton can be penetrated into the conical spine again, the condition that the soundproof cotton is pulled out of the shell is reduced, the tightness of connection between the soundproof cotton and the shell is improved, the shell can be covered at the moment, the noise reduction purpose of the shell is realized, the elastic ring can be contracted at the end side position of the shell, the tightness of the soundproof cotton attached to the surface of the shell is improved, the noise reduction effect on the surface of the shell is improved, the normal heat dissipation of the shell is ensured as much as possible by arranging the radiating fins, the heat dissipation surface of the blade is enlarged by the preformed holes on the blade, the heat dissipation effect of the shell is further improved, the noise reduction effect of the whole motor is improved as much as possible by arranging the noise reduction device under the condition that the heat dissipation of the shell is not influenced as much as possible, and the mute effect of the brushless direct current motor is further improved.
Drawings
Fig. 1 is a schematic perspective view of a brushless dc motor with a good muting effect according to the present invention;
fig. 2 is a schematic diagram of a partial cross-sectional structure of a brushless dc motor with a good muting effect according to the present invention;
fig. 3 is a schematic view of a portion of the structure of fig. 2 of a brushless dc motor with a good mute effect according to the present invention;
fig. 4 is a schematic structural diagram of a rotor of a brushless dc motor with a good muting effect according to the present invention;
fig. 5 is a schematic view of a portion of the structure of fig. 4 of a brushless dc motor with a good mute effect according to the present invention;
fig. 6 is a schematic structural diagram of an application device in a brushless dc motor with a good mute effect according to the present invention;
fig. 7 is an enlarged view of the portion B in fig. 6 of the brushless dc motor with a good mute effect according to the present invention;
fig. 8 is a schematic structural diagram of a driving ring in a brushless dc motor with a good silencing effect according to the present invention;
fig. 9 is a schematic structural diagram of soundproof cotton in a brushless dc motor with a good silencing effect according to the present invention;
fig. 10 is an enlarged view of the portion C in fig. 9 of the brushless dc motor with good mute effect according to the present invention;
fig. 11 is an enlarged view of a portion a in fig. 3 of a brushless dc motor with a good mute effect according to the present invention.
Illustration of the drawings: 1. a housing; 2. a rotating shaft; 3. a rotor; 4. a painting device; 401. a telescopic pipe; 402. an arc-shaped slot; 403. a fixing strip; 404. a fixed tube; 405. sleeving a frame; 406. a connecting pipe; 407. a limiting groove; 408. a sponge sheet; 409. a shaft lever; 410. a sponge sleeve; 411. a slide bar; 412. a piston; 413. positioning blocks; 414. a first spring; 415. a drainage groove; 5. a driving device; 501. a connecting strip; 502. fixing the rod; 503. a limiting ring; 504. a drive ring; 505. reserving a groove; 506. rotating the ring; 507. a drive block; 508. a positioning bar; 509. a supporting strip; 510. a second spring; 6. a noise reduction device; 61. sound insulation cotton; 62. a heat sink; 63. an elastic ring; 64. a blade; 65. reserving a hole; 66. a connecting rod; 67. a cone; 68. and (5) stabbing.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
The specific arrangement and function of the coating device 4, the driving device 5 and the noise reduction device 6 will be described in detail below.
As shown in fig. 1 to fig. 7, the smearing device 4 includes a telescopic tube 401 with a storage structure, a fixed tube 404, a connecting tube 406, a fixed bar 403 with a limiting function, a sleeve frame 405, a limiting groove 407 with a drainage function, and an arc-shaped groove 402. Through setting up and daubing device 4, made things convenient for daubing of emollient in pivot 2 and 1 switching department of shell, reduced the frictional force between shell 1 and the 2 metals of pivot, reduced because pivot 2 and shell 1 are metal material, do not lubricate for a long time and produce the great friction sound between the metal easily, and then produced the phenomenon of certain noise, improved brushless DC motor's silence effect as far as possible.
The lateral wall at pivot 2 is seted up to arc groove 402, a plurality of spacing groove 407 evenly sets up in the inboard of shell 1, spacing groove 407 and arc groove 402 are linked together, fixed strip 403 fixed mounting is at the lateral wall of shell 1, fixed pipe 404 fixed mounting is at the inner wall of fixed strip 403, fixed pipe 404 runs through the inboard of shell 1, flexible pipe 401 is linked together with fixed pipe 404, cover frame 405 fixed mounting is on the surface of shell 1, connecting pipe 406 and cover frame 405's inner wall sliding connection, flexible pipe 401 is linked together with connecting pipe 406, flexible pipe 401 is the beta structure, the aperture has been seted up on the surface of flexible pipe 401, the inner wall of aperture splices there is the rubber buffer. The lubricant is injected through the needle tube from the rubber plug on the telescopic tube 401, when the lubricant is required to be smeared between the rotary shaft 2 and the outer shell 1, the connecting tube 406 at the end side position is pressed, the connecting tube 406 can extrude the telescopic tube 401 to be compressed, and in the rotating process of the rotary shaft 2, the lubricant can smear the side wall of the rotary shaft 2, so that the friction force in the rotating process between the rotary shaft 2 and the outer shell 1 is reduced, and the noise in the use process of the motor is further reduced.
Two locating blocks 413 are fixedly mounted on the inner wall of the fixed pipe 404, a sliding rod 411 is connected to the inner portions of the two locating blocks 413 in a sliding mode, pistons 412 are fixedly mounted on the end faces of the two sliding rods 411, a first spring 414 is fixedly mounted on one side, close to each other, of each locating block 413 and the corresponding piston 412, and a plurality of drainage grooves 415 are uniformly formed in the inner wall of the end side of the fixed pipe 404. Pressure in the flexible pipe 401 can increase, piston 412 can receive the inside atmospheric pressure of flexible pipe 401 effect promotion to being located the position in the middle of a plurality of drainage groove 415, emollient can flow down the inner wall at arc groove 402 along drainage groove 415 this moment, the emollient of arc groove 402 inner wall can flow to the inner wall of a plurality of spacing groove 407, thereby made things convenient for the temporary storage to emollient between shell 1 and the pivot 2, loosen connecting pipe 406, flexible pipe 401 can reset because self elastic action, piston 412 also can receive on the locating piece 413 that first spring 414 pulling force effect resets this moment, the continuation of having avoided emollient trickles. The inner wall of the upper limit groove 407 of the housing 1 is rotatably provided with a shaft lever 409, the side wall of the shaft lever 409 is fixedly connected with a plurality of sponge sleeves 410, and the side wall of the sponge sleeves 410 is fixedly connected with a plurality of sponge pieces 408. When the lubricant in the limiting groove 407 is used more, the relative motion between the rotating shaft 2 and the sponge piece 408 can realize the driving rotation of the shaft rod 409, and the sponge piece 408 on the sponge sleeve 410 can rotate on the inner wall of the limiting groove 407, so that the lubricant at the bottom side of the limiting groove 407 can be used conveniently, and the utilization rate of the lubricant on the inner wall of the limiting groove 407 is improved.
As shown in fig. 1, fig. 5 and 6 and fig. 8, the driving device 5 includes two fixing rods 502, two fixing rods 502 are all connected with the surface of the housing 1, one end of the two fixing rods 502 far away from the housing 1 is fixedly provided with a limiting ring 503, the inner wall of the limiting ring 503 is rotatably provided with a rotating ring 506, the side wall of the rotating ring 506 is fixedly connected with two connecting strips 501 which are in an "L" type structure, one end of the connecting pipe 406 far away from the telescopic pipe 401 is fixedly provided with a driving block 507, the driving block 507 is in an "isosceles triangular prism" structure, the side wall of the rotating shaft 2 is provided with a reserved groove 505, the side wall of the rotating shaft 2 is slidably provided with a driving ring 504, the side wall of the driving ring 504 is fixedly provided with a plurality of convex strips, and the end side of the driving ring 504 is in a conical surface structure. When lubricant needs to be coated at the joint between the rotating shaft 2 and the housing 1, the driving ring 504 on the surface of the rotating shaft 2 can be directly slid, the driving ring 504 is sleeved on the inner wall of the rotating ring 506, the reserved groove 505 plays a role in limiting the moving direction of the driving ring 504, the conical surface structure of the driving ring 504 facilitates the sleeving work between the driving ring 504 and the rotating ring 506, at the moment, a motor is started, the motor can drive the rotating shaft 2 to rotate, the rotating shaft 2 can drive the driving ring 504 to rotate, the driving ring 504 can drive the rotating ring 506 to rotate, the connecting strip 501 on the rotating ring 506 can move relative to the driving block 507 in the rotating process, when the connecting strip 501 moves relative to the driving block 507, the connecting strip 501 moves relative to the inclined surface of the driving block 507 in the rotating process, the extrusion of the driving block 507 can be realized, the extrusion work of the lubricant is realized, and the regular lubricant adding work of the joint between the housing 1 and the rotating shaft 2 is facilitated.
Two positioning bars 508 are fixedly connected to the side walls of the driving ring 504, and a supporting bar 509 is rotatably mounted on the side where the two positioning bars 508 are close to each other. The rotation support bar 509 is caught on the inner wall of the reserve groove 505, and at this time, temporary support of the position of the drive ring 504 after the movement is achieved. A second spring 510 is fixedly connected to the inner wall of the reserved groove 505 on the rotating shaft 2, and the other end of the second spring 510 is fixedly connected to the surface of the driving ring 504. The driving ring 504 is urged by the second spring 510 to press the support bar 509 against the inner wall of the pre-groove 505.
As shown in fig. 1 and 9 and 10, the noise reduction device 6 comprises soundproof cotton 61, the soundproof cotton 61 is sleeved on the outer surface of the shell 1, a plurality of grooves are uniformly formed in the side wall of the soundproof cotton 61, two connecting rods 66 are fixedly connected to the surface of the shell 1, a cone 67 is fixedly mounted at one end of each connecting rod 66, which is far away from the shell 1, and a plurality of conical spines 68 are fixedly connected to the surface of the cone 67. With soundproof cotton 61 cover at shell 1's surface, the both ends cover with soundproof cotton 61 is on the surface of cone 67, cone 67 has made things convenient for the work of puncturing to soundproof cotton 61, after soundproof cotton 61 overlaps on connective bar 66, soundproof cotton 61 can prick into the awl 68 inside once more, the condition that soundproof cotton 61 took out from shell 1 has been reduced, the compactness of being connected between soundproof cotton 61 and the shell 1 has been improved, can realize covering to shell 1 this moment, thereby realized the purpose of making an uproar of falling to shell 1.
The even fixedly connected with a plurality of fin 62 of surface of shell 1, fin 62 are the arc structure, and the even fixedly connected with a plurality of blade 64 of the lateral wall of fin 62, a plurality of preformed hole 65 has evenly been seted up on the surface of blade 64. The arrangement of the heat sink 62 ensures normal heat dissipation of the housing 1 as much as possible, and the preformed hole 65 on the blade 64 increases the heat dissipation surface of the blade 64, thereby further improving the heat dissipation effect of the housing 1. The both ends of soundproof cotton 61 are equal fixedly connected with elastic ring 63, and elastic ring 63 is the ring form structure. The elastic ring 63 is contracted at the end side position of the housing 1, thereby improving the tightness of the soundproof cotton 61 against the surface of the housing 1 and improving the noise reduction effect on the surface of the housing 1.
The overall working principle is as follows: lubricant is injected from the rubber stopper on the extension tube 401 through the needle tube, when lubricant is required to be smeared between the rotating shaft 2 and the outer shell 1, the connecting tube 406 at the end side is pressed, the connecting tube 406 can extrude the extension tube 401 to be compressed, at the moment, the pressure in the extension tube 401 can be increased, the piston 412 can be pushed to the position between the plurality of drainage grooves 415 under the action of the air pressure in the extension tube 401, at the moment, the lubricant can fall on the inner wall of the arc-shaped groove 402 along the drainage grooves 415, the lubricant on the inner wall of the arc-shaped groove 402 can be drained to the inner walls of the plurality of limiting grooves 407, thereby facilitating the temporary storage of the lubricant between the outer shell 1 and the rotating shaft 2, loosening the connecting tube 406, the extension tube 401 can reset under the self elastic action, at the moment, the piston 412 can also reset under the action of the first spring 414 on the positioning block 413, the continuous flowing of the lubricant is avoided, and in the rotating process of the rotating shaft 2, the soaked sponge sleeve 410 and the sponge piece 408 can smear the side wall of the rotating shaft 2, so that the friction force between the rotating shaft 2 and the shell 1 in the rotating process is reduced, and further the noise in the using process of the motor is reduced, when more lubricant is used in the limiting groove 407, the relative motion between the rotating shaft 2 and the sponge piece 408 can realize the driving rotation of the shaft rod 409, the sponge piece 408 on the sponge sleeve 410 can rotate on the inner wall of the limiting groove 407, so that the use of the lubricant at the bottom side of the limiting groove 407 is facilitated, the utilization rate of the lubricant at the inner wall of the limiting groove 407 is improved, the smearing device 4 is arranged, so that the smearing of the lubricant at the joint of the rotating shaft 2 and the shell 1 is facilitated, the friction force between the shell 1 and the metal of the rotating shaft 2 is reduced, the phenomenon that the rotating shaft 2 and the shell 1 are made of metal materials and large friction sound between metals is easily generated when the lubrication is not performed for a long time is reduced, and then certain noise phenomenon is generated, and the mute effect of the brushless direct current motor is improved as much as possible.
When lubricant is needed to be coated on the joint between the rotating shaft 2 and the housing 1, the driving ring 504 on the surface of the rotating shaft 2 can be directly slid, the driving ring 504 is sleeved on the inner wall of the rotating ring 506, the reserved groove 505 plays a role in limiting the moving direction of the driving ring 504, at the moment, the rotating support bar 509 is clamped on the inner wall of the reserved groove 505, the driving ring 504 can be driven by the elastic force of the second spring 510 to drive the support bar 509 to extrude on the inner wall of the reserved groove 505, at the moment, temporary support for the position of the driving ring 504 after moving can be realized, the conical surface structure of the driving ring 504 facilitates the sleeve connection between the driving ring 504 and the rotating ring 506, at the moment, the motor is started, the motor can drive the rotating shaft 2 to rotate, the rotating shaft 2 can drive the driving ring 504, the driving ring 504 can drive the rotating ring 506 to rotate, the connecting strip 501 on the swivel 506 can move relatively with the driving block 507 in the rotating process, when the connecting strip 501 moves relatively with the driving block 507, the connecting strip 501 moves relatively with the inclined surface of the driving block 507, the driving block 507 can be extruded, so that the lubricant can be extruded, the lubricant can be added regularly at the switching position of the shell 1 and the rotating shaft 2 conveniently, the supporting strip 509 on the inner wall of the reserved groove 505 is switched out, the driving ring 504 can be pulled out from the inner wall of the swivel 506 under the elastic action of the second spring 510, the swivel 506 can be separated from the driving ring 504 to be bound and does not rotate any more, the lubricant can be stopped from being added, and the driving device 5 is arranged, so that the lubricant can be added flexibly, and the lubricant smearing effect is improved.
The soundproof cotton 61 is sleeved on the outer surface of the shell 1, two ends of the soundproof cotton 61 are sleeved on the surface of the cone 67, the cone 67 facilitates the piercing of the soundproof cotton 61, after the soundproof cotton 61 is sleeved on the connecting rod 66, the soundproof cotton 61 can be pierced into the cone 68 again, the situation that the soundproof cotton 61 is drawn out from the shell 1 is reduced, the tightness between the soundproof cotton 61 and the shell 1 is improved, at the moment, the shell 1 can be covered, the noise reduction purpose of the shell 1 is realized, the elastic ring 63 can be contracted at the end side position of the shell 1, the tightness of the soundproof cotton 61 attached to the surface of the shell 1 is improved, the noise reduction effect on the surface of the shell 1 is improved, the normal heat dissipation of the shell 1 is ensured as far as possible by arranging the heat dissipation fins 62, the reserved holes 65 on the blades 64 increase the heat dissipation surfaces of the blades 64, the heat dissipation effect of the shell 1 is further improved, by arranging the noise reduction device 6, the noise reduction effect on the shell 1 is reduced as far as possible without influencing the heat dissipation of the shell 1 as far as possible, the noise reduction effect of the whole motor is improved, and the direct current motor is further improved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (10)
1. The utility model provides a brushless DC motor that silence effect is good, includes shell (1), its characterized in that: the utility model discloses a novel water-saving device, including shell (1), the inner wall of shell (1) rotates and installs pivot (2), the lateral wall fixed mounting of pivot (2) has rotor (3), the surface of shell (1) is equipped with paints device (4), paint device (4) including flexible pipe (401), fixed pipe (404) and connecting pipe (406) of storage structure, fixed strip (403) and cover frame (405) that have limiting displacement, spacing groove (407) and arc wall (402) that have the drainage effect.
2. The brushless dc motor according to claim 1, wherein: the lateral wall in pivot (2), a plurality of is seted up in arc wall (402) the inboard in shell (1) is evenly seted up in spacing groove (407), spacing groove (407) and arc wall (402) are linked together, fixed strip (403) fixed mounting is at the lateral wall of shell (1), fixed pipe (404) fixed mounting is at the inner wall of fixed strip (403), fixed pipe (404) run through the inboard of shell (1), flexible pipe (401) are linked together with fixed pipe (404), set frame (405) fixed mounting is on the surface of shell (1), connecting pipe (406) and the inner wall sliding connection of set frame (405), flexible pipe (401) are linked together with connecting pipe (406), flexible pipe (401) are the rugosity structure, the aperture has been seted up on the surface of flexible pipe (401), and the inner wall of aperture splices has the rubber buffer.
3. The brushless dc motor according to claim 1, wherein: the inner wall fixed mounting of fixed pipe (404) has two locating pieces (413), two the equal sliding connection in inside of locating piece (413) has slide bar (411), two the terminal surface fixed mounting of slide bar (411) has piston (412), one side fixed mounting that locating piece (413) and piston (412) are close to each other has first spring (414), a plurality of drainage groove (415) have evenly been seted up to the distolateral inner wall of fixed pipe (404).
4. The brushless dc motor according to claim 1, wherein: the inner wall of the limiting groove (407) on the shell (1) is rotatably provided with a shaft lever (409), the side wall of the shaft lever (409) is uniformly and fixedly connected with a plurality of sponge sleeves (410), and the side wall of each sponge sleeve (410) is uniformly and fixedly connected with a plurality of sponge sheets (408).
5. The brushless dc motor according to claim 1, wherein: the lateral wall of pivot (2) is equipped with drives and changes device (5), it includes two dead lever (502) to drive changes device (5), two dead lever (502) all with the fixed surface connection of shell (1), two the one end fixed mounting that shell (1) was kept away from in dead lever (502) has spacing ring (503), the inner wall of spacing ring (503) is rotated and is installed swivel (506), the lateral wall fixedly connected with of swivel (506) has two connecting strip (501) that are "L" type structure, the one end fixed mounting that flexible pipe (401) was kept away from in connecting pipe (406) has drive block (507), drive block (507) are "isosceles prism" structure, reserved groove (505) have been seted up to the lateral wall of pivot (2), the lateral wall slidable mounting of pivot (2) has drive ring (504), the lateral wall fixed mounting of drive ring (504) has a plurality of sand grip, the distolateral of drive ring (504) is the conical surface structure.
6. The brushless dc motor according to claim 5, wherein: the side wall of the driving ring (504) is fixedly connected with two positioning strips (508), and a supporting strip (509) is rotatably arranged on one side of each positioning strip (508) close to each other.
7. The brushless dc motor according to claim 5, wherein: and a second spring (510) is fixedly connected to the inner wall of the reserved groove (505) on the rotating shaft (2), and the other end of the second spring (510) is fixedly connected with the surface of the driving ring (504).
8. The brushless dc motor according to claim 1, wherein: the surface of shell (1) is equipped with and falls device (6) of making an uproar, it includes soundproof cotton (61) to fall device (6) of making an uproar, soundproof cotton (61) cover is at the surface of shell (1), a plurality of recess has evenly been seted up to the lateral wall of soundproof cotton (61), two connective bars (66) of the fixed surface of shell (1), two the equal fixed mounting in one end that shell (1) was kept away from in connective bar (66) has cone (67), the even fixedly connected with a plurality of awl (68) in surface of cone (67).
9. The brushless dc motor according to claim 1, wherein: the even fixedly connected with a plurality of fin (62) of surface of shell (1), fin (62) are the arc structure, the even fixedly connected with a plurality of blade (64) of lateral wall of fin (62), a plurality of preformed hole (65) have evenly been seted up on the surface of blade (64).
10. The brushless dc motor according to claim 8, wherein: the equal fixedly connected with elastic ring (63) in both ends of soundproof cotton (61), elastic ring (63) are the ring column structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211517441.XA CN115864720A (en) | 2022-11-30 | 2022-11-30 | Brushless direct current motor with good silencing effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211517441.XA CN115864720A (en) | 2022-11-30 | 2022-11-30 | Brushless direct current motor with good silencing effect |
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| Publication Number | Publication Date |
|---|---|
| CN115864720A true CN115864720A (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211517441.XA Pending CN115864720A (en) | 2022-11-30 | 2022-11-30 | Brushless direct current motor with good silencing effect |
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| CN (1) | CN115864720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117543885A (en) * | 2024-01-08 | 2024-02-09 | 深圳市三利达电器科技有限公司 | High-speed mute brushless direct current motor |
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2022
- 2022-11-30 CN CN202211517441.XA patent/CN115864720A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117543885A (en) * | 2024-01-08 | 2024-02-09 | 深圳市三利达电器科技有限公司 | High-speed mute brushless direct current motor |
| CN117543885B (en) * | 2024-01-08 | 2024-03-12 | 深圳市三利达电器科技有限公司 | High-speed mute brushless direct current motor |
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Application publication date: 20230328 |