CN105986991A - Micro pump - Google Patents
Micro pump Download PDFInfo
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- CN105986991A CN105986991A CN201510080891.0A CN201510080891A CN105986991A CN 105986991 A CN105986991 A CN 105986991A CN 201510080891 A CN201510080891 A CN 201510080891A CN 105986991 A CN105986991 A CN 105986991A
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- pump chamber
- chamber structure
- micropump
- cylinder
- installation portion
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Abstract
The invention discloses a micro pump. The micro pump comprises an air cylinder, a piston module, a driving module and a wall body. The air cylinder is provided with a first end and a second end, wherein the first end and the second end are opposite in one direction; the piston module is contained inside the air cylinder and comprises at least one pump chamber structure, and the pump chamber structure protrudes out towards the second end and can be stretched in the direction Z; the driving module is located at the second end, is connected to the pump chamber structure and is used for driving the pump chamber structure to be stretched in the direction Z; at least one part of the wall body surrounds the position, close to the first end, of the pump chamber structure, and the wall body is located between the air cylinder and the pump chamber structure. According to the micro pump, the outer side wall of the pump chamber structure and the inner side wall of the air cylinder can be separated, and therefore the pump chamber structure can be prevented from being worn out.
Description
Technical field
The present invention relates to a kind of micropump.
Background technology
Micropump is the pump that a kind of volume is tiny.Due to the reason that volume is tiny, the motor used in it
Also can only be lower-powered motor.Therefore, the quality that the valve unit of micropump designs with compression unit,
Efficiency for micropump has critical impact.
Traditionally, micropump has piston modules and cylinder, and piston modules is positioned among cylinder, in work
When making, the pump chamber of piston modules is driven and is elongated shortening.But, due to piston modules easily with respect to
There is the situation of skew, therefore, when micropump works, the pump chamber outer wall of piston modules and cylinder in cylinder
Inwall easily produce friction, cause pump chamber outer wall to rupture, and make micropump lose efficacy.
So, how to prevent the pump chamber outer wall of piston modules from producing friction with the inwall of cylinder, be micropump
One important directions of research and development.
Summary of the invention
One technical purpose of the present invention is to provide a kind of micropump, and it can make the lateral wall of pump chamber structure
Separate with the medial wall of cylinder, to reach the effect avoiding pump chamber structure to be worn.
According to this embodiment, a kind of micropump include cylinder, piston modules, drive module with
Wall body.Cylinder has the first relative end and the second end in one direction.Piston modules is placed in cylinder,
Piston modules includes at least one pump chamber structure, and pump chamber structure is protruded towards the second end, and pump chamber structure can edge
Stretch in direction.Drive module to be positioned at the second end, and connect pump chamber structure, be used for driving pump chamber structure edge side
To flexible.Wall body near the position of the first end, and is positioned at cylinder and pump chamber at least partially surrounding pump chamber structure
Between structure.
In the one or more embodiment of the present invention, above-mentioned wall body and pump chamber structure are one of the forming
Structure.
In the one or more embodiment of the present invention, above-mentioned cylinder has air cylinder board, and piston modules is also
Including flat part, piston portion and Access Division.Flat part is laminated on the air cylinder board side towards the first end, pump chamber
Structure is positioned at the flat part side towards the second end.Piston portion connects the pump chamber structure side away from flat part.
Access Division connects the piston portion side away from pump chamber structure, drives module to connect Access Division, and drives pump chamber
Structure is flexible along direction.
In the one or more embodiment of the present invention, above-mentioned air cylinder board also has at least one air inlet.
In the one or more embodiment of the present invention, above-mentioned flat part also have platform body with at least
One air-intake valve plate, air-intake valve plate connects platform body, and air-intake valve plate covers air inlet.
In the one or more embodiment of the present invention, above-mentioned flat part farther includes multiple installation group
Part.Being formed with the first recess between adjacent mounting assembly, each mounting assembly includes the first installation portion
With the second installation portion, wherein, the first installation portion and the second installation portion are disposed on the outer peripheral edge of flat part.
In the one or more embodiment of the present invention, the first above-mentioned installation portion is provided with air-intake valve plate,
Second installation portion extends and between the first installation portion and the second installation portion laterally from the end face of pump chamber structure
It is formed with the second recess.
In the one or more embodiment of the present invention, above-mentioned air cylinder board is provided with supporting part, supporting part
Shape suitable with multiple mounting assembly structures.
The above-mentioned embodiment of the present invention is compared with known, at least has the advantage that
(1) due to wall body at least partially surrounding pump chamber structure near the position of the first end, and be positioned at cylinder and pump
Between cell structure, therefore, piston modules is fixed with the relative position of cylinder, i.e. piston modules is relative
The situation of cylinder skew is also avoided, and, the lateral wall of pump chamber structure and the medial wall of cylinder also obtain
To separate so that when pump chamber structure is stretched along direction, the lateral wall of pump chamber structure and the medial wall of cylinder
Will not phase mutual friction, it is to avoid the chance that pump chamber structure is worn.
(2) due to wall body at least partially surrounding pump chamber structure near the position of the first end, and be positioned at cylinder and pump
Between cell structure so that piston modules is fixed with the relative position of cylinder, and i.e. piston modules is relative to gas
The situation of cylinder skew is also avoided, and therefore, air-intake valve plate does not haves the feelings of skew relative to air inlet yet
Condition, and the effect that air-intake valve plate covers and closes off air inlet is also unaffected.
Accompanying drawing explanation
Fig. 1 is the exploded perspective figure of the micropump according to one embodiment of the present invention.
Fig. 2 is the schematic perspective view of the piston modules of Fig. 1.
Fig. 3 is piston modules and the assembling section of cylinder of Fig. 1.
Fig. 4 is the partial enlarged drawing of the piston modules of Fig. 3.
Fig. 5 is the schematic perspective view of the cylinder of Fig. 1.
Fig. 6 is the top view of the piston modules of Fig. 2.
Detailed description of the invention
Below by the multiple embodiments with the open present invention of accompanying drawing, as clearly stated, many concrete
Details will be explained in the following description.It should be appreciated, however, that these concrete details are not applied
In limiting the present invention.It is to say, in some embodiments of the present invention, these concrete details right and wrong
Necessary.Additionally, for simplifying for the sake of accompanying drawing, some existing usual structures and assembly in the accompanying drawings will be with
The mode of simple signal represents.
Unless otherwise defined, all vocabulary used herein (including technology and scientific terminology) has it
Common meaning, its meaning can be readily appreciated by one skilled in the art.Further, above-mentioned
Vocabulary definition in generally conventional dictionary, should be read as and the present invention in the content of this specification
The meaning that association area is consistent.Unless there are explicitly defining especially, these vocabulary will be not construed as idealization
Or the most formal meaning.
Refer to Fig. 1～4.Fig. 1 is that the solid of the micropump 100 according to one embodiment of the present invention is quick-fried
Fried figure.Fig. 2 is the schematic perspective view of the piston modules 120 of Fig. 1.Fig. 3 is the piston modules 120 of Fig. 1
And the assembling section of cylinder 110.Fig. 4 is the partial enlarged drawing of the piston modules 120 of Fig. 3.
As shown in figures 1-4, micropump 100 includes cylinder 110, piston modules 120, drives module 130
With wall body 140.Cylinder 110 has the first relative end 111 and the second end 112 along direction Z.Piston mould
Block 120 is placed in cylinder 110, and piston modules 120 includes at least one pump chamber structure 121, pump chamber structure
121 protrude towards the second end 112, and pump chamber structure 121 can be stretched along direction Z.Module 130 is driven to be positioned at
Second end 112, and connect pump chamber structure 121, it is used for driving pump chamber structure 121 to stretch along direction Z.Wall
Body 140 near the position of the first end 111, and is positioned at cylinder 110 at least partially surrounding pump chamber structure 121
And between pump chamber structure 121.
It is to say, due to wall body 140 at least partially surrounding pump chamber structure 121 near the first end 111
Position, and between cylinder 110 and pump chamber structure 121, therefore, piston modules 120 and cylinder 110
Relative position fixed, the situation that i.e. piston modules 120 offsets relative to cylinder 110 is also avoided,
Further, the lateral wall of pump chamber structure 121 is also separated with the medial wall of cylinder 110 so that work as pump chamber
Structure 121 along direction Z stretch time, the medial wall of the lateral wall of pump chamber structure 121 and cylinder 110 will not
Phase mutual friction, it is to avoid the chance that pump chamber structure 121 is worn.
In the present embodiment, the structure that wall body 140 and pump chamber structure 121 also can be one of the forming, but
The present invention is not limited thereto.
More specifically, cylinder 110 has air cylinder board 113, piston modules 120 also include flat part 122,
Piston portion 123 and Access Division 124.Flat part 122 is laminated on the air cylinder board 113 side towards the first end 111,
Pump chamber structure 121 is positioned at the flat part 122 side towards the second end 112.Piston portion 123 connects pump chamber
Structure 121 is away from the side of flat part 122.Access Division 124 connects piston portion 123 away from pump chamber structure
The side of 121, drives module 130 to connect Access Division 124, and drives pump chamber structure 121 to stretch along direction Z
Contracting.
Furthermore, it is assumed that the width of wall body 140 is d, the internal diameter of pump chamber structure 121 is D, and pump
The wall thickness of cell structure 121 is T, and in actual application, the internal diameter of cylinder 110 then should be equal or slightly larger than
D+T×2+d×2.It is noted that the wall thickness T of pump chamber structure 121 should be not excessive, to avoid
During pump chamber structure 121 is stretched along direction Z, lateral wall and the piston portion of pump chamber structure 121 occur
The situation of the outer wall phase mutual friction of 123, causes pump chamber structure 121 to be worn.
As in figure 2 it is shown, flat part 122 farther includes multiple mounting assembly 1221.Adjacent installation group
Being formed with the first recess R1 between part 1221, each mounting assembly 1221 includes the first installation portion 1221a
With the second installation portion 1221b, wherein, the first installation portion 1221a and the second installation portion 1221b interval is arranged
Outer peripheral edge at flat part 122.
Furthermore, the first installation portion 1221a is provided with air-intake valve plate 126, and the second installation portion 1221b is from pump chamber
The end face of structure 121 extends and laterally between the first installation portion 1221a and the second installation portion 1221b
It is formed with the second recess R2.
Refer to Fig. 5, it is the schematic perspective view of cylinder 110 of Fig. 1.As it is shown in figure 5, air cylinder board
The 113 multiple mounting assembly 1221 being provided with supporting part 115, the shape of supporting part 115 and piston modules 120
Structure is suitable.Consequently, it is possible to when micropump 100 operates, piston modules 120 also will not gas relatively
Cylinder 110 rotates, and piston modules 120 can be fixed with the relative position of cylinder 110.
Furthermore, air cylinder board 113 also has at least one air inlet 114.Go back to Fig. 2, piston modules 130
Flat part 122 also there is platform body 125 and at least one air-intake valve plate 126, air-intake valve plate 126 is even
Connecing platform body 125, accordingly, air-intake valve plate 126 covers and closes off air inlet 114.As it has been described above,
Due to wall body 140 at least partially surrounding pump chamber structure 121 near the position of the first end 111, and it is positioned at gas
Between cylinder 110 and pump chamber structure 121 so that piston modules 120 is able to the relative position of cylinder 110
Fixing, the situation that i.e. piston modules 120 offsets relative to cylinder 110 is also avoided, therefore, and intake valve
Sheet 126 does not haves the situation of skew relative to air inlet 114 yet, and air-intake valve plate 126 covers and closes off
The effect of air inlet 114 is also unaffected.
Go back to Fig. 2.As in figure 2 it is shown, pump chamber structure 121 has pump chamber 127, and micropump 100
Also include sealing 150.Sealing 150 surrounds into a circle and is arranged at flat part 122 towards the first end
The side of 111, pump chamber 127 and air-intake valve plate 126 are positioned in the inner edge of sealing 150.And, such as figure
Shown in 2, sealing 150 is not provided with between pump chamber 127 and air-intake valve plate 126 on flat part 122.
Go back to Fig. 1.As it is shown in figure 1, micropump 100 also includes pressing plate 160.Pressing plate 160 is laminated on putting down
Plate portion 122 is towards the side of the first end 111, and pressing plate 160 has multiple exhaust port 161, and its position is corresponding
Pump chamber 127.It is as noted previously, as between pump chamber 127 and air-intake valve plate 126 and there is not sealing 150,
Therefore, when piston modules 120 is assembled between pressing plate 160 and cylinder 110, pressing plate 160 will not be right
Between pump chamber 127 and air-intake valve plate 126, the local location of flat part 122 applies excessive pressure, less
The local location deformation of flat part 122 between pump chamber 127 and air-intake valve plate 126 can be caused to make intake valve
Sheet 126 is deformed the phenomenon tilted.Consequently, it is possible to the sealing of micropump 100 is maintained.
As it is shown in figure 1, micropump 100 also includes exhaust valve plate 170.Exhaust valve plate 170 connects pressing plate
160 towards the side of the first end 111, and position correspondence exhaust port 161.
Refer to Fig. 6, it is the top view of piston modules 120 of Fig. 2.As shown in Figure 6, air-intake valve plate
126 have root 126a and edge 126b.Root 126a connects platform body 125, air-intake valve plate 126
Can tilt towards the first end 111 according to root 126a.Edge 126b is by two straightway 126b1, two bending section 126b2
With arc section 126b3 constitute, wherein two straightway 126b1 connect respectively root 126a opposite end,
Two bending section 126b2 connect straightway 126b1 and arc section 126b3 connecting bending tune 126b2 respectively.
It is to say, between arc section 126b3 and root 126a, only exist straightway 126b1 and bending
Section 126b2, therefore, the distance of arc section 126b3 and root 126a can effectively shorten.Consequently, it is possible to
Air-intake valve plate 126 also can effectively reduce according to moment of flexure produced by root 126a, it is to avoid air-intake valve plate 126
Deform tilting because stress is excessive, also make air-intake valve plate 126 can effectively cover and close off air inlet 114.
Furthermore, as shown in Figure 6, root 126a opposite edges 126b of air-intake valve plate 126 are near pump chamber
Structure 121.
In sum, technical scheme compared with prior art has clear advantage and useful effect
Really.By technique scheme, can reach suitable technological progress, and there is the extensive utilization in industry
Being worth, it at least has the advantage that
(1) due to wall body at least partially surrounding pump chamber structure near the position of the first end, and be positioned at cylinder and pump
Between cell structure, therefore, piston modules is fixed with the relative position of cylinder, i.e. piston modules is relative
The situation of cylinder skew is also avoided, and, the lateral wall of pump chamber structure and the medial wall of cylinder also obtain
To separate so that when pump chamber structure is stretched along direction, the lateral wall of pump chamber structure and the medial wall of cylinder
Will not phase mutual friction, it is to avoid the chance that pump chamber structure is worn.
(2) due to wall body at least partially surrounding pump chamber structure near the position of the first end, and be positioned at cylinder and pump
Between cell structure so that piston modules is fixed with the relative position of cylinder, and i.e. piston modules is relative to gas
The situation of cylinder skew is also avoided, and therefore, air-intake valve plate does not haves the feelings of skew relative to air inlet yet
Condition, and the effect that air-intake valve plate covers and closes off air inlet is also unaffected.
Although the present invention is open as above with embodiment, so it is not intended to limit the present invention, any
Those skilled in the art, without departing from the spirit and scope of the present invention, can make various different selection and
Amendment, therefore protection scope of the present invention is limited by claims and equivalents thereof.
Claims (8)
1. a micropump, it is characterised in that described micropump includes:
Cylinder, it has the first relative end and the second end in one direction；
Piston modules, it is placed in described cylinder, and described piston modules includes at least one pump chamber structure,
It protrudes towards described second end, and described pump chamber structure can be stretched along described direction；
Driving module, it is positioned at described second end, and connects described pump chamber structure, is used for driving described pump
Cell structure is flexible along described direction；And
Wall body, it near the position of described first end, and is positioned at institute at least partially surrounding described pump chamber structure
State between cylinder and described pump chamber structure.
2. micropump as claimed in claim 1, it is characterised in that described wall body with described pump chamber structure is
Integrally formed structure.
3. micropump as claimed in claim 1, it is characterised in that described cylinder has air cylinder board, described
Piston modules also includes:
Flat part, it is laminated on the described air cylinder board side towards described first end, and described pump chamber structure is positioned at
Described flat part is towards the side of described second end；
Piston portion, it connects the described pump chamber structure side away from described flat part；And
Access Division, its described piston portion of connection is away from the side of described pump chamber structure, and described drive module is even
Connect described Access Division, and drive described pump chamber structure flexible along described direction.
4. micropump as claimed in claim 3, it is characterised in that described air cylinder board also has at least one
Air inlet.
5. micropump as claimed in claim 4, it is characterised in that described flat part also has platform body
And at least one air-intake valve plate, described air-intake valve plate connects described platform body, and described air-intake valve plate covers
Cover described air inlet.
6. micropump as claimed in claim 3, it is characterised in that described flat part farther includes:
Multiple mounting assembly, are formed with the first recess between adjacent mounting assembly, each mounting assembly
Including the first installation portion and the second installation portion, wherein, between described first installation portion and described second installation portion
Every the outer peripheral edge being arranged on described flat part.
7. micropump as claimed in claim 6, it is characterised in that described first installation portion is provided with air inlet
Valve block, described second installation portion extend laterally from the end face of described pump chamber structure and the first installation portion with
The second recess it is formed with between second installation portion.
8. micropump as claimed in claim 7, it is characterised in that described air cylinder board is provided with supporting part,
The shape of described supporting part is suitable with the plurality of mounting assembly structure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510080891.0A CN105986991B (en) | 2015-02-13 | 2015-02-13 | Micropump |
| US14/672,247 US10190578B2 (en) | 2015-02-13 | 2015-03-30 | Miniature pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510080891.0A CN105986991B (en) | 2015-02-13 | 2015-02-13 | Micropump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105986991A true CN105986991A (en) | 2016-10-05 |
| CN105986991B CN105986991B (en) | 2018-08-31 |
Family
ID=57042172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510080891.0A Active CN105986991B (en) | 2015-02-13 | 2015-02-13 | Micropump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105986991B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869444A (en) * | 2004-06-29 | 2006-11-29 | 三美电机株式会社 | Small pump |
| US20070160485A1 (en) * | 2006-01-06 | 2007-07-12 | Tricore Corporation | Air pump with air noise reduction structure |
| CN201588764U (en) * | 2009-11-02 | 2010-09-22 | 厦门科际精密器材有限公司 | Diaphragm pump with improved gas collection room structure |
| CN102817819A (en) * | 2011-06-10 | 2012-12-12 | 德昌电机(深圳)有限公司 | Miniature air pump |
| CN204476710U (en) * | 2015-02-13 | 2015-07-15 | 科际精密股份有限公司 | Micropump |
-
2015
- 2015-02-13 CN CN201510080891.0A patent/CN105986991B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1869444A (en) * | 2004-06-29 | 2006-11-29 | 三美电机株式会社 | Small pump |
| US20070160485A1 (en) * | 2006-01-06 | 2007-07-12 | Tricore Corporation | Air pump with air noise reduction structure |
| CN201588764U (en) * | 2009-11-02 | 2010-09-22 | 厦门科际精密器材有限公司 | Diaphragm pump with improved gas collection room structure |
| CN102817819A (en) * | 2011-06-10 | 2012-12-12 | 德昌电机(深圳)有限公司 | Miniature air pump |
| CN204476710U (en) * | 2015-02-13 | 2015-07-15 | 科际精密股份有限公司 | Micropump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105986991B (en) | 2018-08-31 |
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