CN104533763B - Miniature water pump with damping fin - Google Patents
Miniature water pump with damping fin Download PDFInfo
- Publication number
- CN104533763B CN104533763B CN201510017751.9A CN201510017751A CN104533763B CN 104533763 B CN104533763 B CN 104533763B CN 201510017751 A CN201510017751 A CN 201510017751A CN 104533763 B CN104533763 B CN 104533763B
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- China
- Prior art keywords
- valve seat
- middle shell
- damping fin
- pump
- check valve
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Abstract
The invention discloses a miniature water pump with a damping fin. The miniature water pump comprises a pump shell, a motor, a valve seat and a cover, wherein the motor is installed on side face of the pump shell; the valve seat and the cover are sequentially and fixedly connected to the upper side of the pump shell; the valve seat is provided with a water inlet channel and a water outlet channel; a connecting rod which is driven by a motor drive shaft to reciprocate is installed in the pump shell; the lower portion of a membrane is fixedly connected to the connecting rod, and the edge of the membrane is pressed between the pump shell and the valve seat; the cover comprises a middle shell and an upper cover, the middle shell is connected with the valve seat, and the upper cover is connected with the middle shell; a buffer cavity is formed in the end face, close to the upper cover, of the middle shell, and the edge of the damping fin is clamped between the edge of the buffer cavity and the upper cover; the middle shell is provided with a water inlet pipe and a water outlet pipe; an inner hole of the water inlet pipe is communicated with the water inlet channel in the valve seat and the buffer cavity by forming a first channel and a second channel in the middle shell, and an inner hole of the water outlet pipe is communicated with the water outlet channel in the valve seat. The miniature water pump has good effects of stabilizing flow and pressure and is low in running noise.
Description
Technical field
The present invention relates to micro pump, especially a kind of micro pump with damping fin.
Background technology
The micro pump of diaphragm type, is to provide circular motion by motor, then the barrier film inside water pump is made by machinery
Reciprocating is done, and so as to compressing, stretching the air in pump chamber, under check valve sheet effect, malleation is formed at discharge outlet,
Vacuum is formed at pump mouth, so as to pressure differential is produced between external atmosphere pressure.In the presence of pressure differential, hydraulic pressure is entered into water
Mouthful, then discharge from discharge outlet.This micro pump is well used in occasions such as small household appliances, medical apparatus and instruments.
But the micro pump of this conventional membrane formula is due to being affected by the discharge stability that absorbs water, current stabilization and voltage stabilizing are imitated
Fruit all has much room for improvement, and could meet the requirement of high precision apparatus；Further, since the running speed of its motor is fast, enter draining switching
Frequency is high, and valve block pats noise becomes its dominant noise source, and its noise is larger.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of micro pump with damping fin, its have preferable current stabilization and
Voltage regulation result, and it is relatively low to run noise.
To reach above-mentioned purpose, the technical scheme is that：A kind of micro pump with damping fin, including pump case
Body, motor, valve seat, lid, motor is mounted on a side of pump case and motor driving shaft is stretched in pump case body, valve seat and lid
Body is fixed on the upside of pump case successively, and valve seat is provided with intake tunnel and exhalant canal, and pump case is built with by motor driving shaft
Drive can produce reciprocating connecting rod, and a diaphragm bottom is connected on connecting rod, the edge of diaphragm be pressed in pump case and valve seat it
Between, the lid includes middle shell and upper lid, and middle shell connecting valve seat, top cap connect middle shell, and middle shell is provided near the end face of upper lid
One cushion chamber, a damping fin edge are clipped between the buffering cavity edge and upper lid；Middle shell is provided with water inlet pipe and outlet pipe, institute
State and first passage is provided with by middle shell into water pipe orifice and second channel is respectively communicated with the intake tunnel on valve seat and described slow
Rush chamber, the exhalant canal on the endoporus connection valve seat of outlet pipe；It is provided between valve seat and middle shell into water and goes out Water Check Valve piece,
Go out the exhalant canal that Water Check Valve piece is blocked on valve seat during water inlet, enter during water outlet that Water Check Valve piece blocked on middle shell first is led to
Road.
Further improve, the exhalant canal of the valve seat be provided with annular protrusion with it is described go out Water Check Valve piece be engaged；
Also be provided with the first passage of middle shell annular protrusion with it is described enter Water Check Valve piece be engaged.Thus can be soft with rigid line pressure holding
Part, plays seamless seal, it is ensured that enter Water Check Valve piece and go out Water Check Valve piece also keep excellent sealing ability at elevated pressures.
Further improve, the water inlet and go out Water Check Valve piece and form one while being connected on a substrate by both sides rib
Body formula structure.Both installation had been facilitated, can have also been made into water and be gone out Water Check Valve piece with naturalness work.
Further improve, a clamping screw is spun on the connecting rod diaphragm bottom is solid through the center of the diaphragm
It is connected on connecting rod, the top of connecting rod is also rotary with the lower surface that a regulation ring withstands the diaphragm.By the position for changing regulation ring
Discharge pressure can be changed, to meet the demand of different clients.
Further improve, between diaphragm lower surface edge and pump case, also set up a support ring.Guarantee diaphragm same
Work in one plane, extends the service life of diaphragm.
Further improve, between the damping fin and middle shell, be also equipped with sealing ring.
Further improve, the pump case is combined by the first housing and the second housing, and motor is connected in the first housing
Side.With convenient for assembly, improve production efficiency.
It is preferred that the second channel has two, bottom of the second channel in the middle of the cushion chamber, another the
Two passages are near the first passage.Preferably to improve the transmission speed of current, the response speed of damping fin is improved.
It is preferred that the connecting rod bottom is provided with the cross through hole perpendicular to connecting rod axial direction, first axle is housed in the cross through hole
Hold, the endoporus of clutch shaft bearing is engaged with an eccentric, the motor driving shaft passes through the centre bore of eccentric and using fastening
Screw is fastened with eccentric, and the motor driving shaft is engaged through one end of eccentric with the centre bore of second bearing, the
Two bearings are filled on the second housing.As the front end of motor driving shaft has second bearing to support, stress is more steady, connecting rod it is upper
Lower mobile accuracy is higher, meets the work requirements of big pressure.
The present invention is made up of middle shell and upper lid due to the lid, and middle shell is provided with a cushion chamber near the end face of upper lid,
One damping fin edge is clipped between the buffering cavity edge and upper lid；Middle shell is provided with water inlet pipe and outlet pipe, the water inlet pipe
Endoporus is provided with intake tunnel and the cushion chamber that first passage and second channel are respectively communicated with valve seat, water outlet by middle shell
Exhalant canal on the endoporus connection valve seat of pipe.So in water inlet, damping force and the water of the cushion chamber that damping fin is provided
Just play a part of to suck regulator, it is ensured that enough water yields can be sucked in pump chamber, also ensures that enough water can be discharged,
Reduce the impact of water inlet pipe flow of inlet water；During draining, the damping force and the water of the cushion chamber that damping fin is provided plays pulse resistance
The effect of Buddhist nun, reduces into Water Check Valve piece the noise that shell is produced in patting, can strengthen the stability of discharge pressure again.Therefore this
It is bright with preferable current stabilization and voltage regulation result, and run noise it is relatively low；Disclosure satisfy that and work under big pressure, preferably can be applied to will
In the higher equipment of refinement degree.
Description of the drawings
Fig. 1 is axonometric chart of the present invention；
Fig. 2 is three-dimensional exploded view of the present invention；
Fig. 3 is top view of the present invention；
Fig. 4 is the A-A sectional views of Fig. 3；
Fig. 5 is the B-B sectional views of Fig. 3；
Fig. 6 is the stereo amplification figure of valve seat of the present invention；
Fig. 7 is shell top perspective view in the present invention；
Fig. 8 is the C-C sectional views of Fig. 7；
Fig. 9 is that shell looks up stereo amplification figure in the present invention；
Figure 10 is that the present invention enters Water Check Valve piece and go out Water Check Valve piece to be connected stereo amplification figure.
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Shown in Fig. 1 to Figure 10, a kind of micro pump with damping fin, including pump case 1, motor 2, valve seat 3, lid 4,
The pump case 1 is combined by the first housing 11 and the second housing 12, and the screw of motor 2 is connected in the side of the first housing 11
Face, 2 drive shaft 21 of motor are stretched in pump case 1；The lid 4 includes middle shell 41 and upper lid 42, valve seat 3, middle shell 41 and upper lid
42 are fixed on the upside of pump case 1 successively by bolt.
Valve seat 3 is provided with intake tunnel 31 and exhalant canal 32, and pump case 1 is built with being driven by the drive shaft 21 of motor 2
Reciprocating connecting rod 22 can be produced, 22 bottom of connecting rod is provided with the cross through hole 221 perpendicular to 22 axial direction of connecting rod, described laterally logical
Clutch shaft bearing 5 is housed in hole 221, the endoporus of clutch shaft bearing 5 is engaged with an eccentric 6,2 drive shaft 21 of the motor is through partially
The centre bore of heart wheel 6 is simultaneously fastened with eccentric 6 using trip bolt 61, and 2 drive shaft 21 of the motor passes through the one of eccentric 6
End is engaged with the centre bore of second bearing 7, and second bearing 7 is mounted on the second housing 12.
One diaphragm, 8 bottom is connected on connecting rod 22, and concrete attachment is through the diaphragm 8 using a clamping screw 81
Center be spun on the connecting rod 22 8 bottom of the diaphragm be connected on connecting rod 22, the generally peviform shape of diaphragm 8, connecting rod 22
Top be also rotary with the lower surface that a regulation ring 82 withstands the diaphragm 8, regulation ring 82 and film are changed by rotating adjustment ring 82
8 contact condition of piece can change the output pressure of whole pump；Also set up between 8 lower surface edge of the diaphragm and pump case 1
By support ring 83, one support ring 83, may insure that diaphragm 8 is worked in the same plane, extend the service life of diaphragm 8；Diaphragm
The edge of 8 upper surfaces is compressed by valve seat 3.
With reference to shown in Fig. 5, Fig. 7, Fig. 8, Fig. 9, middle shell 41 is provided with a cushion chamber 411, a resistance near the end face of upper lid 42
9 edge of Buddhist nun's piece is clipped between 411 edge of the cushion chamber and upper lid 42, and 411 edge of the cushion chamber is provided with a circle annular protrusion
It is engaged with damping fin 9, sealing ring 91 is also equipped between the damping fin 9 and middle shell 41 and is compressed by upper lid 42, strengthens
9 sealing property of damping fin；Middle shell 41 is provided with water inlet pipe 412 and outlet pipe 413, and 412 endoporus of the water inlet pipe passes through middle shell 41
It is provided with intake tunnel 31 and the cushion chamber 411 that first passage 414 and second channel 415 are respectively communicated with valve seat 3, water outlet
The endoporus of pipe 413 is provided with third channel 416 by middle shell 41 and connects the exhalant canal 32 on valve seat 3.
With reference to shown in Figure 10, it is provided between valve seat 3 and middle shell 41 into Water Check Valve piece 10 and goes out Water Check Valve piece 101,
Enter Water Check Valve piece 10 and go out the generally disc of Water Check Valve piece 101, enter Water Check Valve piece 10 and go out Water Check Valve piece 101 to lead to
Cross both sides rib and integral structure is formed while being connected on a substrate 102, so as to enter Water Check Valve piece 10 and go out Water Check Valve
Piece 101 can be worked with naturalness；The exhalant canal 32 of the valve seat 3 be provided with annular protrusion 321 with it is described go out Water Check Valve
Piece 101 is engaged, to strengthen the sealing effectiveness for Water Check Valve piece 101；Equally it also is provided with the first passage 414 of middle shell 41
Annular protrusion 4141 with it is described enter Water Check Valve piece 10 be engaged, to strengthen the sealing effectiveness into Water Check Valve piece 10；During water inlet
Go out the exhalant canal 32 that Water Check Valve piece 101 is blocked on valve seat 3, enter Water Check Valve piece 10 during water outlet and block on middle shell 41 first
Passage 414.
Fig. 7, Fig. 8 are further illustrated, and the second channel 415 has two, and a second channel 415 is in the cushion chamber
Bottom in the middle of 411, another second channel 415 is near the first passage 414.Preferably to improve the transmission speed of current,
Improve the response speed of damping fin 9.
The course of work of the present embodiment is as follows：Motor 2 is rotated, and the drive shaft 21 of motor 2 is rotated with movable eccentric wheel 6, eccentric
Wheel 6 is pumped by 5 drivening rod 22 of clutch shaft bearing, and connecting rod 22 moves up and down with dynamic diaphragm 8, when diaphragm 8 is transported downwards
When dynamic, go out the exhalant canal 32 that Water Check Valve piece 101 is blocked on valve seat 3, pump chamber produces water inlet pipe 412 of the vacuum therefrom on shell 41
Water suction, when diaphragm 8 is moved upwards, enters the first passage 414 that Water Check Valve piece 10 is blocked on middle shell 41, and diaphragm 8 produces malleation
Therefrom 413 draining of outlet pipe on shell 41.In water absorption course, the water in damping fin 9 and the cushion chamber 411 plays suction
Pulse damped effect is played in the effect of regulator, the water during draining in damping fin 9 and the cushion chamber 411,
Guarantee stablizing for output pressure and flow, and reduce the noise of valve block beating.
The above is only a preferred embodiment of the invention, the change that those skilled in the art is made to be equal to by claim
Both fall within the protection domain of this case.
Claims (9)
1. a kind of micro pump with damping fin, including pump case, motor, valve seat, lid, motor are mounted in of pump case
On side and motor driving shaft is stretched in pump case body, valve seat and lid are fixed on the upside of pump case successively, and valve seat is provided with into water
Passage and exhalant canal, it is characterised in that：Pump case can produce reciprocating connecting rod built with being driven by motor driving shaft, and one
Diaphragm bottom is connected on connecting rod, and the edge of diaphragm is pressed between pump case and valve seat, and the lid includes middle shell and upper lid, in
Shell connecting valve seat, top cap connect middle shell, and middle shell is provided with a cushion chamber near the end face of upper lid, and a damping fin edge is clipped in described
Between buffering cavity edge and upper lid；Middle shell is provided with water inlet pipe and outlet pipe, and the water inlet pipe orifice is provided with by middle shell
One passage and second channel are respectively communicated with the intake tunnel on valve seat and the cushion chamber, on the endoporus connection valve seat of outlet pipe
Exhalant canal；It is provided between valve seat and middle shell into Water Check Valve piece and goes out Water Check Valve piece, goes out Water Check Valve piece during water inlet and block up
Firmly the exhalant canal on valve seat, enters the first passage that Water Check Valve piece is blocked on middle shell during water outlet.
2. a kind of micro pump with damping fin according to claim 1, it is characterised in that：The water outlet of the valve seat is led to
Road be provided with annular protrusion with it is described go out Water Check Valve piece be engaged；Annular protrusion and institute also are provided with the first passage of middle shell
State into Water Check Valve piece and be engaged.
3. a kind of micro pump with damping fin according to claim 1, it is characterised in that：It is described enter Water Check Valve piece
Integral structure is formed while being connected on a substrate by both sides rib with Water Check Valve piece is gone out.
4. a kind of micro pump with damping fin according to claim 1, it is characterised in that：One clamping screw passes through institute
The center for stating diaphragm is spun on the connecting rod diaphragm bottom is connected on connecting rod, and the top of connecting rod is also rotary with a regulation ring
Withstand the lower surface of the diaphragm.
5. a kind of micro pump with damping fin according to claim 1, it is characterised in that：Diaphragm lower surface side
A support ring is also set up between edge and pump case.
6. a kind of micro pump with damping fin according to claim 1, it is characterised in that：The damping fin and middle shell
Between be also equipped with sealing ring.
7. a kind of micro pump with damping fin according to claim 1, it is characterised in that：The second channel has two
It is individual, bottom of the second channel in the middle of the cushion chamber, another second channel is near the first passage.
8. a kind of micro pump with damping fin according to any one of claim 1 to 7, it is characterised in that：The pump
Housing is combined by the first housing and the second housing, and motor is connected in the side of the first housing.
9. a kind of micro pump with damping fin according to claim 8, it is characterised in that：The connecting rod bottom is provided with
Perpendicular to the cross through hole of connecting rod axial direction, clutch shaft bearing, the endoporus of clutch shaft bearing and an eccentric are housed in the cross through hole
It is engaged, the motor driving shaft is passed through the centre bore of eccentric and is fastened with eccentric using trip bolt, the motor
Drive shaft is engaged through one end of eccentric with the centre bore of second bearing, and second bearing is filled on the second housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017751.9A CN104533763B (en) | 2015-01-14 | 2015-01-14 | Miniature water pump with damping fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017751.9A CN104533763B (en) | 2015-01-14 | 2015-01-14 | Miniature water pump with damping fin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533763A CN104533763A (en) | 2015-04-22 |
| CN104533763B true CN104533763B (en) | 2017-05-03 |
Family
ID=52849353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510017751.9A Active CN104533763B (en) | 2015-01-14 | 2015-01-14 | Miniature water pump with damping fin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533763B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105057A (en) * | 2017-12-28 | 2018-06-01 | 广东天物新材料科技有限公司 | A kind of water pump |
| CN108278193A (en) * | 2018-01-23 | 2018-07-13 | 珠海易咖科技有限公司 | High pressure micro pump, coffee machine and its working method |
| CN113048041A (en) * | 2021-04-09 | 2021-06-29 | 南京瞬拍信息科技有限公司 | Novel metering pump |
| CN113153705A (en) * | 2021-04-26 | 2021-07-23 | 贝德凯利电气（深圳）有限公司 | Diaphragm pump with waterproof ventilative structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09112417A (en) * | 1995-10-13 | 1997-05-02 | Taisan Kogyo Kk | Electromagnetic pump for sanitary-flushing closet seat device |
| KR100282189B1 (en) * | 1999-02-26 | 2001-02-15 | 정휘동 | Boosting pump using vibration of motor |
| JP2007009837A (en) * | 2005-07-01 | 2007-01-18 | Enomoto Micro Pump Seisakusho:Kk | Diaphragm pump |
| CN201714641U (en) * | 2010-07-20 | 2011-01-19 | 厦门坤锦电子科技有限公司 | Diaphragm gas pump for fuel battery |
| CN203614374U (en) * | 2013-12-09 | 2014-05-28 | 厦门坤锦电子科技有限公司 | Miniature air pump |
| CN204402807U (en) * | 2015-01-14 | 2015-06-17 | 厦门坤锦电子科技有限公司 | A kind of micro pump with damping fin |
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2015
- 2015-01-14 CN CN201510017751.9A patent/CN104533763B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104533763A (en) | 2015-04-22 |
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