CN106246497B - A kind of miniature silent pump and its working method - Google Patents
A kind of miniature silent pump and its working method Download PDFInfo
- Publication number
- CN106246497B CN106246497B CN201610892576.2A CN201610892576A CN106246497B CN 106246497 B CN106246497 B CN 106246497B CN 201610892576 A CN201610892576 A CN 201610892576A CN 106246497 B CN106246497 B CN 106246497B
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- Prior art keywords
- shaped magnet
- small
- connecting rod
- wire frame
- coil
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Abstract
The present invention provides a kind of miniature silent pump and its working method, and silent pump includes pedestal, O-shaped magnet, rectangular wire frame, connecting rod and piston pump made of un-conducted magnetic material；O-shaped magnet is fixed on the base；The O-shaped magnet is closely packed together by the same pole of two blocks of identical U-shaped magnet and is formed in O shape；Rectangular wire frame passes through O-shaped magnet on one side；One end of the connecting rod is connect with the midpoint of the opposite side on rectangular wire frame one side, and the other end of the connecting rod passes through a guide rail and connect with the piston of the piston pump；The guide rail is fixedly installed on pedestal by a bracket；N circle rectangle hollow coil is wound in rectangular wire frame, N is positive integer；The both ends of coil are connect with two output ends of a sine ac power supply respectively；Sine ac power supply is, whereinFor angular frequency,,,For the frequency of sinusoidal ac,For voltage max,For initial phase.The present invention can accomplish really mute, and structure is simple.
Description
Technical field
The invention belongs to fluid media (medium) transportation arts, and in particular to a kind of miniature silent pump and its working method.
Background technique
In the prior art, there is the more pump, such as piston pump, centrifugal pump and diaphragm pump etc. for trandfer fluid medium.
Piston pump is to cooperate check valve to realize fluid media (medium) conveying in the intracorporal reciprocating motion of cylinder by piston.Centrifugal pump is to pass through height
The centrifugal force that the pump leaf of revolving speed rotation generates realizes fluid media (medium) conveying.Diaphragm pump is similar with piston pump, is made by mechanical force
Diaphragm changes volume, and cooperation check valve realizes fluid media (medium) conveying.
In certain occasions needs, almost noiseless trandfer fluid, this equipment are known as silent pump.Silent pump on the market,
Its noise specification can be lower than 40dB, but if remain to be heard under extremely quiet environment.
Summary of the invention
The object of the present invention is to provide a kind of miniature silent pump and its working methods, noise specification when the mute pump work
20dB can be reduced to hereinafter, being really achieved muting function.
To achieve the above object, the invention adopts the following technical scheme: a kind of miniature silent pumps, it is characterised in that: including
Pedestal, O-shaped magnet, rectangular wire frame, connecting rod and piston pump made of un-conducted magnetic material；O-shaped magnet is fixed on the base；The O
Type magnet is closely packed together by the same pole of two blocks of identical U-shaped magnet and is formed in O shape；Passing through on one side for rectangular wire frame is O-shaped
Magnet；One end of the connecting rod is connect with the midpoint of the opposite side on rectangular wire frame one side, and the other end of the connecting rod passes through a guide rail
It is connect with the piston of the piston pump；The guide rail is fixedly installed on pedestal by a bracket；N circle square is wound in rectangular wire frame
Shape air core coil, N are positive integer；The both ends of coil are connect with two output ends of a sine ac power supply respectively；Simple alternating current
Power supply is u=Um*sin(ωt+α0), wherein ω is angular frequency, and the π of ω=2 f, f < 20Hz, f are the frequency of sinusoidal ac, UmFor
Voltage max, α0For initial phase.
Further, the extended line of the axial line of the connecting rod is fallen in the center cross-sectional of rectangular wire frame.
Further, the connecting rod is vertical with piston, and the connecting rod is vertical with the opposite side on rectangular wire frame one side.
Further, the guide rail or connecting rod are provided with a key portion, and the connecting rod or guide rail offer one and the key portion
Matched slot.
Further, two bottom surfaces of the cylinder body of the piston pump, which are sticked, cushion film.
Further, a switch is provided between described coil one end and sine ac power supply.
Further, the O-shaped magnet is vertically arranged on pedestal；One side of the rectangular wire frame is horizontal through described O-shaped
Magnet.
The present invention also provides a kind of working methods pumped based on above-mentioned miniature silent, it is characterised in that: the both ends of coil with just
After string exchange electrically connects, electric current i is flowed through in coil, ignores the inductance of air core coil then
R is coil resistance,Coil across O-shaped magnet will generate an Ampere force F on one side to driving wire frame, connecting rod
And piston, wherein Ampere force F=iBL sin θ, B are magnetic field strength, and L sin θ is the conductor effective length across magnetic field, L sin
θ is fixed value；Therefore Ampere force F and iB are positively correlated, Ampere force F change procedure: i is in sinusoidal rule variation, electric current i when positive half cycle
From small to large again from big to small, the magnetic field in O-shaped magnet by direction intensity B from left to right from small to large again from big to small, because
This Ampere force is also from small to large again from big to small；When negative half period, the direction Ampere force F and positive half cycle on the contrary, electric current i from small to large
Again from big to small, the magnetic field in O-shaped magnet by direction intensity B from right to left from small to large again from big to small, therefore Ampere force
It is also from small to large again from big to small；Piston motion direction with electric current i direction change, therefore piston back-and-forth movement frequency with
Electric current i frequency f is identical.
Further, the direction in the magnetic field generated across one side of the coil of O-shaped magnet perpendicular to O-shaped magnet, therefore sin
θ=1, L sin θ=L=Nl, wherein l is length of the single-turn circular coil on one side in O-shaped magnetic field of magnets.
Compared with prior art, silent pump of the invention can be really achieved muting function: the piston back-and-forth movement of silent pump
Frequency is consistent with the frequency of sine ac power supply, is lower than 20HZ, so the vibration noise generated, also below 20HZ, human ear is felt not
It arrives；The rule variation slow by slow-to-fast-of the speed of piston back and forth movement in cylinder body, and only need to be changed according to payload size and hand over
The size of the voltage in galvanic electricity source just can control the maximum speed of piston motion, therefore will not generate knock；The two of cylinder body simultaneously
A bottom surface is sticked and has cushion, further mitigates the percussion of two bottom surfaces of Pistons's cylinder body.
Detailed description of the invention
Fig. 1 is primary structure schematic diagram of the invention.
Fig. 2 is the waveform diagram of AC power source of the invention.
Fig. 3 is the schematic diagram that one embodiment of the invention connecting rod is connect with guide rail.
Fig. 4 is that AC power source is added in the schematic diagram on coil.
Specific embodiment
Explanation is further explained to the present invention in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1, the present invention provides a kind of miniature silent pump comprising pedestal 6, O-shaped magnet 4, un-conducted magnetic material are made
Rectangular wire frame 1, connecting rod 3 and piston pump 11；O-shaped magnet is fixed on pedestal 6；The O-shaped magnet is by two blocks of identical U-shaped magnetic
The same pole of iron 4-1,4-2 are closely packed together to be formed in O shape；Rectangular wire frame 1 passes through O-shaped magnet 4 on one side；The connecting rod 3
One end is connect with the midpoint of the opposite side on 1 one side of rectangular wire frame, and the other end of the connecting rod 3 passes through a guide rail 8 and the piston pump
Piston 7 connect；The guide rail 8 is fixedly installed on pedestal 6 by a bracket 10；N circle rectangle hollow is wound in rectangular wire frame 1
Coil, N are positive integer；Both ends 2-1,2-2 of coil two output ends with a sine ac power supply (being not drawn into figure) respectively
Connection；Sine ac power supply is u=Um*sin(ωt+α0), wherein ω is angular frequency, and the π of ω=2 f, f < 20Hz, f are simple alternating current
The frequency of electricity, UmFor voltage max, α0For initial phase.The output waveform of sine ac power supply is referring to fig. 2.Human ear can distinguish
Sound low-limit frequency be 20Hz.
Piston pump 7 is fixed on pedestal 6 by bracket 12, prevents from generating vibration when piston pump work.
In an embodiment of the present invention, the extended line of the axial line of the connecting rod falls in the center cross-sectional of rectangular wire frame
On, the connecting rod is vertical with piston, and connecting rod is vertical with the opposite side on rectangular wire frame one side.The extended line of the axial line of connecting rod is fallen in
It is in the center cross-sectional of rectangular wire frame and vertical with piston 7, it is provided to that Ampere force is enable to act on piston 7 to greatest extent.
The guide rail or connecting rod are provided with a key portion, and the connecting rod or guide rail offer one and the matched slot in key portion.
One embodiment of the invention connecting rod and guide rail schematic diagram referring to fig. 2, wherein key portion 9-1 setting offered on guide rail, on connecting rod with
The matched groove 9-2 of key portion 9-1.Setting can make connecting rod that can only axially move in guide rail in this way, and cannot do around axis
The rotation of heart line.
In an embodiment of the present invention, two bottom surface face pastes of the cylinder body of the piston pump are equipped with cushion film 13-1,13-2.
Cushion film can prevent piston knock cylinder body bottom surface from making a sound.
In an embodiment of the present invention, a switch K is provided between described coil one end and sine ac power supply.Specifically show
It is intended to referring to fig. 4.
In an embodiment of the present invention, the O-shaped magnet is vertically arranged on pedestal, and one side of the rectangular wire frame is horizontal
Across the O-shaped magnet.
The working method of above-mentioned miniature silent pump are as follows: after the both ends of coil are electrically connected with simple alternating current, electricity is flowed through in coil
I is flowed, ignores the inductance of air core coil thenR is coil resistance,
Coil across O-shaped magnet will generate an Ampere force F on one side to driving wire frame, connecting rod and piston, wherein Ampere force F=
IBL sin θ, B are magnetic field strength, and L sin θ is the conductor effective length across magnetic field, and L sin θ is fixed value；Therefore Ampere force
F and iB are positively correlated, Ampere force F change procedure: i in sinusoidal rule variation, when positive half cycle electric current i from small to large again from big to small, O
From small to large again from big to small by direction intensity B from left to right, therefore Ampere force is also from small to large for magnetic field in type magnet
Again from big to small；When negative half period, the direction Ampere force F and positive half cycle on the contrary, electric current i from small to large again from big to small, in O-shaped magnet
Magnetic field by direction intensity B from right to left from small to large again from big to small, therefore Ampere force be also from small to large again from greatly to
It is small；Piston motion direction is with the direction change of electric current i, therefore piston back-and-forth movement frequency is identical as electric current i frequency f.
In an embodiment of the present invention, the side in the magnetic field generated across one side of the coil of O-shaped magnet perpendicular to O-shaped magnet
To, therefore sin θ=1, L sin θ=L=Nl, wherein l is length of the single-turn circular coil on one side in O-shaped magnetic field of magnets.
In a specific embodiment of the invention, simple alternating current is worked as after switch K is electrically connected with simple alternating current in the both ends of coil
After the incomplete waveform of one of electricity, and after limited period；Alternating current enters positive half period: electric current flows to b from a, according to
Left hand rule it is found that Ampere force to the left, Ampere force drives wire frame 1, connecting rod 3 and piston 7 to move downward, and piston pump cylinder body volume becomes
Greatly, fluid 16 is provided on stand in channel 14 into the stand in channel 14 of piston pump to prevent fluid countercurrent current under atmospheric pressure
Check valve 15；Electric current i first becomes larger from small, and wire frame moves downward, and magnetic field strength also becomes larger from small, therefore Ampere force F is also from small change
Greatly, so that wire frame slowly accelerates, so that connecting rod, piston be driven slowly to accelerate；Electric current i again from becoming smaller greatly, transport to the left by wire frame continuation
Dynamic, magnetic field strength is also from becoming smaller greatly, therefore Ampere force F is also from becoming smaller greatly, so that wire frame slowly slows down, to drive connecting rod, work
Plug slowly slows down；Into negative half-cycle: electric current flows to a from b, according to left hand rule it is found that Ampere force to the right, Ampere force band moving-wire
Frame 1, connecting rod 3 and piston 7 move right, and piston pump cylinder body volume becomes smaller, and fluid is extruded out channel 17 by piston pump, for anti-fluid stopping
Body adverse current, is provided with check valve 18 on channel 17 out；Electric current i first becomes larger from small, and wire frame moves right, and magnetic field strength is also from small change
Greatly, therefore Ampere force F also becomes larger from small, so that wire frame slowly accelerates, so that connecting rod, piston be driven slowly to accelerate；Electric current i again from
Become smaller greatly, wire frame continues to move right, and magnetic field strength is also from becoming smaller greatly, therefore Ampere force F is also from becoming smaller greatly, so that wire frame is slow
Slow down, so that connecting rod, piston be driven slowly to slow down.Piston motion direction is with electric current i direction change, therefore piston back-and-forth movement
Frequency is identical as electric current i frequency f.
The foregoing is merely presently preferred embodiments of the present invention, of the invention basic not departing from not to limit the present invention
Several equivalent substitutes done under the premise of design and modification, should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of miniature silent pump, it is characterised in that: including rectangular wire frame made of pedestal, O-shaped magnet, un-conducted magnetic material, even
Bar and piston pump；
O-shaped magnet is fixed on the base；The O-shaped magnet is closely packed together by the same pole of two blocks of identical U-shaped magnet in O
Shape forms；Rectangular wire frame passes through O-shaped magnet on one side；The midpoint of the opposite side of one end and rectangular wire frame one side of the connecting rod connects
It connects, the other end of the connecting rod passes through a guide rail and connect with the piston of the piston pump；The guide rail passes through the fixed peace of a bracket
Loaded on pedestal；
N circle rectangle hollow coil is wound in rectangular wire frame, N is positive integer；The both ends of coil respectively with a sine ac power supply
Two output end connections；Sine ac power supply is u=Um*sin(ωt+α0), wherein ω be angular frequency, the π of ω=2 f, f < 20Hz,
F is the frequency of sinusoidal ac, UmFor voltage max, α0For initial phase；Two bottom surfaces of the cylinder body of the piston pump are sticked
There is cushion film.
2. miniature silent pump according to claim 1, it is characterised in that: the extended line of the axial line of the connecting rod falls in square
In the center cross-sectional of shape wire frame.
3. miniature silent according to claim 2 pump, it is characterised in that: the connecting rod is vertical with piston, the connecting rod and
The opposite side on rectangular wire frame one side is vertical.
4. miniature silent pump according to claim 1, it is characterised in that: the guide rail or connecting rod are provided with a key portion, institute
It states connecting rod or guide rail offers one and the matched slot in key portion.
5. miniature silent pump according to claim 1, it is characterised in that: between described coil one end and sine ac power supply
It is provided with a switch.
6. miniature silent pump according to claim 1, it is characterised in that: the O-shaped magnet is vertically arranged on pedestal；It is described
One side of rectangular wire frame is horizontal through the O-shaped magnet.
7. a kind of working method based on miniature silent described in claim 1 pump, it is characterised in that: the both ends of coil and simple alternating current
Electric current i is flowed through after electrically connecting, in coil, ignores the inductance of air core coil thenR
For coil resistance,Across O-shaped magnet coil on one side will generate an Ampere force F to drive wire frame, connecting rod and
Piston, wherein Ampere force F=iBLsin θ, B are magnetic field strength, and Lsin θ is the conductor effective length across magnetic field, and Lsin θ is solid
Definite value；Therefore Ampere force F and iB are positively correlated, Ampere force F change procedure: i is in sinusoidal rule variation, and electric current i is from small when positive half cycle
To greatly again from big to small, magnetic field in O-shaped magnet from small to large again from big to small, therefore is pacified by direction intensity B from left to right
Training power is also from small to large again from big to small；When negative half period, the direction Ampere force F and positive half cycle on the contrary, electric current i from small to large again from
Arrive greatly small, from small to large again from big to small by direction intensity B from right to left, therefore Ampere force is also for magnetic field in O-shaped magnet
From small to large again from big to small；Direction change of the piston motion direction with electric current i, therefore piston back-and-forth movement frequency and electric current
I frequency f is identical.
8. the working method of miniature silent according to claim 7 pump, it is characterised in that: across the coil of O-shaped magnet
The direction in the magnetic field generated on one side perpendicular to O-shaped magnet, therefore sin θ=1, Lsin θ=L=Nl, wherein l is single-turn circular coil one
While the length in O-shaped magnetic field of magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892576.2A CN106246497B (en) | 2016-10-13 | 2016-10-13 | A kind of miniature silent pump and its working method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892576.2A CN106246497B (en) | 2016-10-13 | 2016-10-13 | A kind of miniature silent pump and its working method |
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| Publication Number | Publication Date |
|---|---|
| CN106246497A CN106246497A (en) | 2016-12-21 |
| CN106246497B true CN106246497B (en) | 2018-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610892576.2A Active CN106246497B (en) | 2016-10-13 | 2016-10-13 | A kind of miniature silent pump and its working method |
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| CN109516336A (en) * | 2018-12-29 | 2019-03-26 | 刘英辉 | The control method of linear drive apparatus, safety tongs device and elevator device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4808955A (en) * | 1987-10-05 | 1989-02-28 | Bei Electronics, Inc. | Moving coil linear actuator with interleaved magnetic circuits |
| CN1095611C (en) * | 1997-05-13 | 2002-12-04 | 张吉林 | Reciprocating magnetic power generator-electric motor |
| CN2661971Y (en) * | 2003-12-05 | 2004-12-08 | 郑刚 | Water pump driven by electromagnetic vibration |
| CN102931801B (en) * | 2012-10-31 | 2014-07-02 | 西安交通大学 | Large-displacement magnetic actuator utilizing electromagnetic force to carry out position control |
| CN204458240U (en) * | 2015-01-30 | 2015-07-08 | 徐俏 | A kind of electromagnetic drive type piston pump |
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| CN106246497A (en) | 2016-12-21 |
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Address after: 353409 No. 68, Houcun, Xianyang Village, Xianyang Town, Pucheng County, Nanping City, Fujian Province Applicant after: Zheng Binjie Address before: 350015 Unit 1402, Building 6, Port Bay Six District, Mingcheng City, North Side of Mawei Town Comprehensive Stadium, Fuzhou City, Fujian Province Applicant before: Zheng Binjie |
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