CN109639033A - A kind of low noise vector motor - Google Patents
A kind of low noise vector motor Download PDFInfo
- Publication number
- CN109639033A CN109639033A CN201811558550.XA CN201811558550A CN109639033A CN 109639033 A CN109639033 A CN 109639033A CN 201811558550 A CN201811558550 A CN 201811558550A CN 109639033 A CN109639033 A CN 109639033A
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- China
- Prior art keywords
- sound
- casing
- proof casing
- particle
- low noise
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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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Sound-proof casing is fixedly installed outside in a kind of low noise vector motor, including motor body, motor body, and there are gap between sound-proof casing and motor body, the gap shortest distance is not less than 5mm；Bubble soundproofing member is fixedly installed in the sound-proof casing, the bubble soundproofing member includes hard grid set casing, waterproof ventilated membrane, particle, liquid stream buffering ring and holds pressure chamber；The hard grid set casing has multiple, and coaxial spaced is fixed, tensioning waterproof ventilated membrane is fixed on hard grid set casing inner wall, to form multiple annular water chambers being separated by waterproof ventilated membrane, the liquid stream buffering ring is fixed on the axial ends of hard grid set casing, the both ends of the annular water chamber are connected to liquid stream buffering ring, a water inlet in two liquid stream buffering rings, one draining, it is formed between outermost hard grid set casing and the outer wall of sound-proof casing and holds pressure chamber, the loaded particles in annular water chamber hold pressure chamber ventilation and are pressed in 1.5-1.7 atmospheric pressure.The motor noise is extremely low, and form comfort level is higher.
Description
Technical field
The present invention relates to a kind of vector motor, it is specifically related to what a kind of electric vehicle used, the very small vector electricity of noise
Machine.
Background technique
Vector motor is relatively small compared to ordinary motor noise itself.But on electric three-wheel or carriage in use,
Its power, service wear etc. are required higher.Especially in electric four-wheel vehicle, due to the requirement of comfort level, noise, especially
It is to reduce the noise of motor sending as far as possible in acceleration.
In the prior art, Chinese patent (the mute vector motor of CN201720147632.X ultra high efficiency) its technical solution are as follows:
Including motor part, the motor part is controlled by vector frequency converter, and the motor part includes shell, is arranged on the shell
There is a recirculated water cooling channel, front end face, the rear end face of the shell are respectively arranged with 2m preceding labyrinth holes of correspondence, after 2m
Labyrinth hole, the preceding labyrinth hole of adjacent two are the beginning and end in the recirculated water cooling channel, remaining described preceding labyrinth
Hole interval labyrinth hole intervals passes through maze trough connection, the labyrinth of upper surface between any two between any two, after the 2m
Slot and the maze trough of lower end surface are interlaced, the preceding labyrinth hole of correspondence, rear labyrinth hole by being connect with axial passage,
The axial passage is curvilinear, the whole type in the shape of a spiral in the recirculated water cooling channel.It is logical that water cooling is arranged in it on motor case
Road is related to water stream channel to reduce noise.By experiment, this structure is not obvious the noise reduction effect of motor, noise point
Shellfish has used the noise decibel of the vector motor of water-cooling channel to merely reduce 5-8% under same machine core, different shells.
The reason is that casing itself largely can still launch outward sound wave.
Summary of the invention
The object of the present invention is to provide the low noise vector motors that noise can be greatly reduced in one kind.
To achieve the goals above, the present invention includes motor body, is fixedly installed sound-proof casing outside motor body, sound-proof casing with
There are gap between motor body, the gap shortest distance is not less than 5mm；
It is fixedly installed bubble soundproofing member in the sound-proof casing, the bubble soundproofing member includes honeycomb storage element, soft
Matter item, waterproof ventilated membrane and hold pressure chamber；
The honeycomb storage element is made of, the storage the storage cylinder close-packed arrays that interlock that cross section is regular hexagon
A pair of line in the opposite vertex of cylinder cross section hexagon is vertical with electrical axis, and in addition two opposite vertexes are along axial right
Claim, is provided with intercommunicating pore on the barrel of the storage cylinder and one group of axially vertical barrel two sides；
The loaded particles in storage cylinder,
The fixed soft item of the top margin of the storage cylinder, fixes tensioning waterproof ventilated membrane on soft item, waterproof ventilated membrane with every
There are gap between sound shell inner wall, pressure chamber is held in formation, holds pressure chamber by air inlet pipe air inlet, by the exhaust pipe of connection and is fixed on
Check valve on exhaust pipe, which is held, presses intracavitary air pressure in 1.5-1.7 atmospheric pressure.
Further, bubble soundproofing member is fixedly installed in the fixed end housing in the both ends of sound-proof casing, end housing.
Further, end housing is annular, fixes wedge on inner ring, fixation reflex ring in shaft, the outer diameter of tore of reflection is not
Less than the diameter in the space in the vacant end besieged city of wedge, and difference is within the scope of 0-5mm.
Further, the air inlet pipe is connected to the bottom end of sound-proof casing, and exhaust pipe is fixed at the upper end of sound-proof casing, into
Tracheae and exhaust pipe with hold pressure chamber and be connected to, the water inlet pipe and drainpipe with honeycomb storage element and waterproof ventilated membrane with
And the water space connection that sound-proof casing is formed, water inlet pipe are located at the middle and lower part of sound-proof casing, drainpipe is located at the top of sound-proof casing.
Preferably, the particle includes hard and soft grit, and hard particles are one of pelelith, haydite, zeolite
Or it is a variety of, soft grit is resin particle, and the partial size of one of silica gel particle or a variety of, particle is selected in 2-5mm.
The beneficial effects of the present invention are:
1, it realizes the effect of vector motor super low noise, improves vehicle comfort level；
2, while realizing noise reduction, auxiliary carries out liquid cooling to motor.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is Figure 1A-A direction view.
Fig. 3 is bubble soundproofing member structural schematic diagram.
Specific embodiment
Invention is described in detail with reference to the accompanying drawing.
As shown in Figures 1 to 3, a kind of low noise vector motor, including motor body 10, be fixedly installed outside motor body 10 every
Sound shell 20, there are gap between sound-proof casing 20 and motor body 10, the gap shortest distance is not less than 5mm；
Bubble soundproofing member 40 is fixedly installed in the sound-proof casing 20, the bubble soundproofing member 40 is solid including hard grid
Determine shell 42, waterproof ventilated membrane 43, particle 43, liquid stream buffering ring 45 and holds pressure chamber 41；
The hard grid set casing 42 has multiple, and coaxial spaced is fixed, fixed on 42 inner wall of hard grid set casing
Tensioning waterproof ventilated membrane, to form multiple annular water chambers being separated by waterproof ventilated membrane, the liquid stream buffering ring 45 is solid
It is connected to due to the both ends of the axial ends of hard grid set casing 42, the annular water chamber with liquid stream buffering ring 45, two liquid streams
A water inlet in buffering ring 45 a, draining, forms between outermost hard grid set casing 42 and the outer wall of sound-proof casing 20
Pressure chamber 41 is held,
The loaded particles in annular water chamber, the effect of particle are in order to stick bubble, when being that bubble can save longer
Between, when sound is passed through with bladdery liquid, it can be predominantly absorbed the energy of 85-95%, in other words, noise, which passes through, sticks bubble
When particle, decibel can substantially reduce, and particle used herein is divided into hard and soft, hard particles can be selected pelelith,
Resin particle, silica gel particle etc. can be selected in the porous particles such as haydite, zeolite, soft grit, and the partial size of particle is selected in 2-5mm model
In enclosing, why storage cylinder is set and carrys out loaded particles, in order to which particle can be uniformly distributed when purpose, and then guarantees bubble energy
It is enough to be uniformly distributed as far as possible, so that the effect for making each position absorb noise keeps uniform；
The type of certain particle is loaded soft using having large effect for the maintenance of bubble in internal layer annular water chamber
Particle, the state hard particles in outer layer annular water chamber.For example, having four layers of annular water chamber, in annular water chamber from outside to inside
Successively shape loads, haydite, zeolite or pelelith, silica gel particle, Super Absorbent Polymer Particles.
Pressure chamber 41 is held by 21 air inlet of air inlet pipe, passes through the exhaust pipe 23 of connection and the check valve being fixed on exhaust pipe 23
The air pressure in pressure chamber 41 is held in 1.5-1.7 atmospheric pressure, what can be continued in this way forms bubble, storage in storage cylinder 441
It deposits hydraulic pressure in cylinder 441 and is less than the air pressure held in pressure chamber 41.
It is detected by experiment, 20 external noise of sound-proof casing is the 2-6% of interior noise decibel, and vector electricity can be greatly lowered
The noise of machine.
In order to further improve muting function, can also consolidate in the fixed end housing 30 in the both ends of sound-proof casing 20, end housing 30
Bubble soundproofing member 40 is set surely, naturally it is also possible to the other sound-absorbing materials of fixed setting or component, but bubble sound insulation group
Part 40 is due to ceaselessly intaking, moreover it is possible to enough play the role of cooling excessively.
The shaft of motor will pass through end housing 30 certainly, therefore be annular in end housing 31, fix wedge 31, shaft on inner ring
Fixation reflex ring 11 on 11, the outer diameter of tore of reflection 11 is not less than the diameter in the space in the vacant end of wedge 31 besieged city, and difference is in 0-
Within the scope of 5mm, if noise will be propagated outward by the annular distance of end housing 30, tore of reflection 11 can be encountered, then absorbed by wedge 31；
Two end housings 30 do not need that structure is identical, because it is driving end that the motor generally used, which only has one end, because its
In an end housing can be provided directly as lid not with holes.
As shown in Figure 1, the air inlet pipe 21 is connected to the bottom end of sound-proof casing 20, exhaust pipe 23 is fixed at sound-proof casing 20
Upper end, air inlet pipe 21 and exhaust pipe 23 with hold pressure chamber 41 and be connected to, the water inlet pipe 22 and drainpipe 24 with honeycomb storage
Memory cell 44 is connected to the water space that waterproof ventilated membrane 41 and sound-proof casing 20 are formed, and water inlet pipe 22 is located in sound-proof casing 20
Lower part, drainpipe 24 are located at the top of sound-proof casing 20.
To containing the vector motor of sound-proof casing 20 and end housing 30, and the vector motor of only motor body 10 is examined
It surveys, the former noise decibel is the 3-8% of the latter.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All any modifications in spirit of that invention and principle, made are equal
Replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of low noise vector motor, including motor body, which is characterized in that sound-proof casing is fixedly installed outside motor body, every
There are gap between sound shell and motor body, the gap shortest distance is not less than 5mm；
Bubble soundproofing member is fixedly installed in the sound-proof casing, the bubble soundproofing member includes hard grid set casing, waterproof
Ventilated membrane, particle, liquid stream buffering ring and hold pressure chamber；
The hard grid set casing has multiple, and coaxial spaced is fixed, and fixes tensioning waterproof on hard grid set casing inner wall
Ventilated membrane, to form multiple annular water chambers being separated by waterproof ventilated membrane, the liquid stream buffering ring is fixed on hard net
The both ends of the axial ends of lattice set casing, the annular water chamber are connected to liquid stream buffering ring, in two liquid stream buffering rings one into
Water a, draining, forms between outermost hard grid set casing and the outer wall of sound-proof casing and holds pressure chamber,
The loaded particles in annular water chamber,
Pressure chamber is held by air inlet pipe air inlet, held by the exhaust pipe of connection and the check valve being fixed on exhaust pipe press it is intracavitary
Air pressure in 1.5-1.7 atmospheric pressure, in this way can continue bubble is formed in storage cylinder, in storage cylinder hydraulic pressure be less than holds pressure
Intracavitary air pressure.
2. low noise vector motor according to claim 1, which is characterized in that at the fixed end housing in the both ends of sound-proof casing, end
Bubble soundproofing member is fixedly installed in shell.
3. low noise vector motor according to claim 1 or 2, which is characterized in that end housing is annular, is fixed on inner ring
Wedge, fixation reflex ring in shaft, the outer diameter of tore of reflection is not less than the diameter in the space in the vacant end besieged city of wedge, and difference is in 0-
Within the scope of 5mm.
4. low noise vector motor according to claim 1 or 2, which is characterized in that the bottom of the air inlet pipe and sound-proof casing
End connection, exhaust pipe are fixed at the upper end of sound-proof casing, air inlet pipe and exhaust pipe with hold pressure chamber and be connected to, the water inlet pipe
The water space formed with honeycomb storage element and waterproof ventilated membrane and sound-proof casing with drainpipe be connected to, water inlet pipe positioned at every
The middle and lower part of sound shell, drainpipe are located at the top of sound-proof casing.
5. low noise vector motor according to claim 1 or 2, which is characterized in that the particle includes hard and soft
Particle, hard particles are one of pelelith, haydite, zeolite or a variety of, and soft grit is resin particle, in silica gel particle
One or more, the partial size of particle is selected in 2-5mm.
6. low noise vector motor according to claim 1 or 2, which is characterized in that loaded in internal layer annular water chamber soft
Matter particle loads hard particles in outer layer annular water chamber.
7. low noise vector motor according to claim 6, which is characterized in that have four layers of annular water chamber, from outside to inside
Successively shape loads in annular water chamber, haydite, zeolite or pelelith, silica gel particle, Super Absorbent Polymer Particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558550.XA CN109639033A (en) | 2018-12-19 | 2018-12-19 | A kind of low noise vector motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811558550.XA CN109639033A (en) | 2018-12-19 | 2018-12-19 | A kind of low noise vector motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109639033A true CN109639033A (en) | 2019-04-16 |
Family
ID=66075638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811558550.XA Pending CN109639033A (en) | 2018-12-19 | 2018-12-19 | A kind of low noise vector motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109639033A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839513A (en) * | 2021-09-16 | 2021-12-24 | 东南大学 | Motor sound insulation cover device |
-
2018
- 2018-12-19 CN CN201811558550.XA patent/CN109639033A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839513A (en) * | 2021-09-16 | 2021-12-24 | 东南大学 | Motor sound insulation cover device |
| CN113839513B (en) * | 2021-09-16 | 2022-04-22 | 东南大学 | Motor sound insulation cover device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190416 |
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| WD01 | Invention patent application deemed withdrawn after publication |