CN108691748A - Micropump and electronic sphygmomanometer with it - Google Patents
Micropump and electronic sphygmomanometer with it Download PDFInfo
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- CN108691748A CN108691748A CN201710237361.1A CN201710237361A CN108691748A CN 108691748 A CN108691748 A CN 108691748A CN 201710237361 A CN201710237361 A CN 201710237361A CN 108691748 A CN108691748 A CN 108691748A
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- Prior art keywords
- micropump
- valve seat
- upper cover
- chamber
- valve
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Classifications
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1013—Adaptations or arrangements of distribution members the members being of the poppet valve type
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/123—Fluid connections
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Vascular Medicine (AREA)
- Cardiology (AREA)
- Biophysics (AREA)
- Medical Informatics (AREA)
- Physiology (AREA)
- Ophthalmology & Optometry (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses a kind of micropump and with its electronic sphygmomanometer, which includes:Upper cover, the upper cover bottom peripheral edge have at least partly been downwardly extending first connecting portion, and the upper cover includes at least one leakage port and at least one exhaust outlet;Valve seat, the valve seat top perimeter at least partly upwardly extends to be formed with and forms one with the matched second connecting portion of the first connecting portion, the first connecting portion and the second connecting portion welding and limit the gas chamber being connected to the leakage port and the exhaust outlet.Micropump according to the ... of the embodiment of the present invention, first connecting portion is arranged in upper cover bottom peripheral edge and the second connecting portion of valve seat top perimeter forms one by welding mode, so that the cooperation dynamics between upper cover and valve seat is stablized, so that it is guaranteed that the decrement of valve block remains unchanged, and then improve the stability of the product quality of micropump.
Description
Technical field
The present invention relates to a kind of micropump and with its electronic sphygmomanometer.
Background technology
Micropump is widely used in the fields such as Medical Devices and household electrical appliance, and traditional micropump unidirectional can only be pressurized
Or decompression, can not according to the demand of user after supercharging releasing pressure automatically, for example, in electronic sphygmomanometer, micropump only rises
To airbag boost air, when pressure release, usually carries out pressure release by solenoid valve, increases the weight of electronic sphygmomanometer in this way and increases
Cost.
New content
The present invention is directed to solve one of above-mentioned technical problem at least to a certain extent.
For this purpose, the present invention proposes that a kind of micropump, the micropump have stable supercharging and decompression function.
The present invention also proposes a kind of electronic sphygmomanometer with above-mentioned micropump with stable supercharging and decompression function.
Micropump according to the ... of the embodiment of the present invention includes:Upper cover, the upper cover bottom peripheral edge at least partly extend downwardly shape
Include at least one leakage port and at least one exhaust outlet at having first connecting portion, the upper cover;Valve seat, valve seat top week
Edge, which at least partly upwardly extends, to be formed with and the matched second connecting portion of the first connecting portion, the first connecting portion and institute
Second connecting portion welding is stated to form one and limit the gas chamber being connected to the leakage port and the exhaust outlet.
The of first connecting portion and valve seat top perimeter is arranged in micropump according to the ... of the embodiment of the present invention, upper cover bottom peripheral edge
Two interconnecting pieces form one by welding mode so that the cooperation dynamics between upper cover and valve seat is stablized, so that it is guaranteed that valve block 30
Decrement remain unchanged, and then improve micropump product quality stability.
In addition, micropump according to the ... of the embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, a part for the valve block is thinner wall section, and the thinner wall section is only butted on described
Leakage port is to close the leakage port, and another part of the valve block is thick wall portion, and the thick wall portion limits the first venthole,
First venthole is oppositely arranged with the exhaust outlet.
According to one embodiment of present invention, a part for the valve block is thinner wall section, and the thinner wall section is only butted on described
Leakage port is to close the leakage port, and another part of the valve block is thick wall portion, and the thick wall portion limits the first venthole.
According to one embodiment of present invention, the top surface of the thinner wall section and the thick wall portion is in same level.
According to one embodiment of present invention, between the thickness range of the thick wall portion is 0.2-0.9 millimeters, the thin-walled
Between the thickness range in portion is 0.08-0.2 millimeters.
According to one embodiment of present invention, the first connecting portion is convex ribs, and the second connecting portion is boss, described
The top surface of boss, which is recessed downwards, forms holding tank for receiving the convex ribs.
According to one embodiment of present invention, the height of the boss is between 0.5-1.5 millimeters.
According to one embodiment of present invention, there is the valve seat multigroup second venthole, every group of second venthole to correspond to
One device in one-way on state is set, and the device in one-way on state is used to open or closes second venthole.
According to one embodiment of present invention, the device in one-way on state is umbrella valve, and the umbrella valve includes:Bar portion,
The bar portion is embedded in the location hole of the valve seat;Umbrella portion, the umbrella portion are connected to the top of the bar portion and the umbrella portion
Cover every group of second venthole.
According to one embodiment of present invention, every group of second venthole includes multiple second ventholes, multiple second ventilations
Hole is uniformly distributed around the location hole.
According to one embodiment of present invention, the upper surface of the valve seat is equipped with multiple positioning columns, the following table of the upper cover
Face is equipped with multiple location holes with positioning column cooperation.
According to one embodiment of present invention, recess is formed with first chamber and the second chamber upwards for the bottom surface of the upper cover
Room is equipped with communicating passage between the first chamber and the second chamber.
According to one embodiment of present invention, the leakage port is opened on the first chamber and from the first chamber
Top surface is downwardly extending gas outlet.
According to one embodiment of present invention, the umbrella valve includes two, and the valve seat is provided with two group of second ventilation
Hole, one of umbrella valve are oppositely arranged to form airtight chamber with the thinner wall section, another umbrella valve is ventilated with described first
Hole is corresponding.
According to one embodiment of present invention, the valve seat is equipped with row pressure mouth, and the row pressure mouth connects with the airtight chamber
It passes to and sends out the indoor gas of the closed chamber outward.
According to one embodiment of present invention, the row pressure mouth is formed in the top surface of the valve seat.Implemented according to the present invention
The electronic sphygmomanometer of example includes the micropump of above-described embodiment, due to the supercharging and pressure release of micropump according to the ... of the embodiment of the present invention
Stablize, therefore, electronic sphygmomanometer supercharging according to the ... of the embodiment of the present invention and blood pressure stabilization, product quality are high.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein:
Fig. 1 is the partial sectional view of micropump according to an embodiment of the invention;
Fig. 2 is the partial sectional view of another angle of micropump according to an embodiment of the invention;
Fig. 3 is the stereogram of upper cover according to an embodiment of the invention.
Reference numeral:
Micropump 100;
Upper cover 10;First connecting portion 11;Leakage port 12;Exhaust outlet 13;Location hole 14;First chamber 15;Second chamber 16;
Communicating passage 17;
Valve seat 20;Second connecting portion 21;Second venthole 211;Positioning column 22;Row pressure mouth 23;
Valve block 30;Thinner wall section 31;Thick wall portion 32;First venthole 321;
Umbrella valve 50;Bar portion 51;Umbrella portion 52.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Micropump 100 according to the ... of the embodiment of the present invention is described referring to Fig. 1 to Fig. 3, which can be applied to
Medical Devices, such as electronic sphygmomanometer, can also be applied to household electrical appliance, such as coffee machine etc. can also be applied to massage armchair
With massage bed etc..
As depicted in figs. 1 and 2, micropump 100 is equipped with upper cover 10, valve block 30, valve seat 20, piston component successively from top to bottom
(not shown) and motor (not shown).It is to be appreciated that in the description of the present invention, term "upper", "lower", "top",
The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In the description present invention and simplify description, does not indicate or imply the indicated micropump 100 and must have a particular orientation, with spy
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
Specifically, as shown in Fig. 2 combinations Fig. 3,10 bottom peripheral edge of upper cover has at least partly been downwardly extending the first connection
Portion 11, upper cover 10 include at least one leakage port 12 and at least one exhaust outlet 13.That is, 10 bottom peripheral edge of upper cover can be with
A part is downwardly extending first connecting portion 11, as shown in Fig. 2, 10 generally square in cross-section body structure of upper cover, first connecting portion 11
It is formed in two relatively short sides of 10 bottom of upper cover.It is, of course, understood that above-described embodiment is only illustrative, not
It is the limitation to protection scope of the present invention, two relative short edges of 10 bottom of upper cover can also be provided with first connecting portion simultaneously
11。
As shown in Fig. 2, 20 top perimeter of valve seat at least partly upwardly extend be formed with it is matched with first connecting portion 11
Second connecting portion 21, first connecting portion 11 and 21 welding of second connecting portion form one and limit and leakage port 12 and exhaust outlet
The gas chamber of 13 connections.In other words, after the 21 mutual welding of first connecting portion 11 and second connecting portion, upper cover 10 and valve seat 20 can shapes
At the gas chamber for airflow, and upper cover 10 and valve seat 20 are each integral structure.Wherein, welding mode can be Supersonic
Wave fusion techniques.
Valve block 30 is located between upper cover 10 and valve seat 20, and valve block 30 is only butted on leakage port 12 to close leakage port 12.Such as
Shown in Fig. 1, the lower end for being butted on leakage port 12 is stopped in the upper surface of valve block 30.That is, when 100 non-working condition of micropump,
The upper surface of valve block 30 fits in the lower face of leakage port 12.Wherein, there is valve block 30 material preparation of deformability to form, example
Such as, sheet rubber or silica gel piece.
It is generally described the course of work that the micropump 100 of the embodiment of the present invention is installed on to electronic sphygmomanometer below, first
The exhaust outlet 13 of micropump 100 is connect with the air bag of electronic sphygmomanometer, when being pressurized to air bag, motor drives piston component
Acting so that into being exited into air bag from exhaust outlet 13 after air inlet chamber, air pressure at this time stops to be butted on the bottom surface of valve block 30 and make gas
It obtains valve block 30 and closes leakage port 12;When carrying out pressure release to air bag, motor is stopped, and the gas in air bag is returned by exhaust outlet 13
It is back in gas chamber, at this point, valve block 30 supports under gas pressure opens leakage port 12, and the external world is emitted into eventually by leakage port 12
In, complete pressure leak process.
It will be appreciated by persons skilled in the art that the cooperation of valve block 30 and leakage port 12 whether tight ness rating, by direct shadow
Ring the stability being pressurized in micropump 100.Since valve block 30 is located between upper cover 10 and valve seat 20, upper cover 10 and valve seat 20 it
Between matching relationship can influence the decrement of valve block 30, when upper cover 10 and valve seat 20 coordinate dynamics larger, the compression of valve block 30
It measures larger;When upper cover 10 and valve seat 20 coordinate dynamics smaller, the decrement of valve block 30 is smaller.When 30 decrement of valve block is excessive
When, leakage port 12 will be unable to be compacted completely, in this way, will flow out from leakage port 12 in pressurization stages gas, cause entirely to increase
It is slow to press through journey;When 30 decrement of valve block is too small, leakage port 12 will be compressed by valve block 30 always, cause micropump 100 can not
Timely pressure release, therefore, the cooperation dynamics control between upper cover 10 and valve seat 20 are particularly important.
However traditional micropump 100, upper cover 10 and valve seat 20 are attached by screw mode, it is not only time-consuming and laborious,
And since the dynamics of lock screw can not accurate control so that 30 decrement of valve block of each micropump 100 may be different, to
The unstable quality of product is caused, can not ensure normal volume production.
Micropump 100 according to the ... of the embodiment of the present invention, first connecting portion 11 is arranged in 10 bottom peripheral edge of upper cover and valve seat 20 pushes up
The second connecting portion 21 of portion's periphery forms one by welding mode so that the cooperation dynamics between upper cover 10 and valve seat 20 is steady
It is fixed, so that it is guaranteed that the decrement of valve block 30 remains unchanged, and then improve the stability of the product quality of micropump 100.
In some embodiments of the invention, as shown in Figure 1, a part for valve block 30 is thinner wall section 31, thinner wall section 31 is stopped
Leakage port 12 is butted on to close leakage port 12, another part of valve block 30 is thick wall portion 32, and thick wall portion 32 limits the first ventilation
Hole 321.When micropump 100 carries out pressurization, gas acts on thinner wall section 31 so that thinner wall section 31 is tightly attached to leakage port 12
Lower face, remaining gas are discharged after passing through the first venthole 321 from exhaust outlet 13.The deformability of thinner wall section 31 is more than thick wall portion
32 deformability so that thinner wall section 31 when by different directions barometric information can flexible deformation, normally to seal
Close or open leakage port 12.
In some optional examples, the top surface of thinner wall section 31 and thick wall portion 32 is in same level.As shown in Figure 1, thin-walled
The bottom surface in portion 31 be higher than thick wall portion 32 bottom surface, in this way, can be swung up and down when thinner wall section 31 is by gas pressure with open or
Leakage port 12 is closed, ensures that micropump 100 has stable supercharging and decompression function.
Optionally, between the thickness range of thick wall portion 32 is 0.2-0.9 millimeters, the thickness range of thinner wall section 31 is 0.08-
Between 0.2 millimeter.Preferably, the thickness of thick wall portion 32 is 0.6 millimeter, and the thickness of thinner wall section 31 is 0.4 millimeter.It is appreciated that
It is, it is above-mentioned to be only illustrative, it is not limiting the scope of the invention, the range of thinner wall section 31 and thick wall portion 32 can be with
It is adjusted according to actual conditions.
In other embodiments of the invention, first connecting portion 11 is convex ribs, and second connecting portion 21 is boss, the top of boss
Recess forms the holding tank for receiving convex ribs downwards.As shown in Fig. 2, convex ribs stretch into holding tank, convex ribs and convex when welding
Platform is melt into one to which upper cover 10 and valve seat 20 to be fixedly connected.Still optionally further, the altitude range of boss is in 0.5-
Between 1.5 millimeters, it is preferable that the height of boss is 1.2 millimeters.Wherein, the distance of boss in above-below direction is highly referred to.
In still other embodiments of the present invention, such as Fig. 1, valve seat 20 has multigroup second venthole 211, every group second ventilation
Hole 211 is correspondingly arranged a device in one-way on state, and device in one-way on state is used to open or closes the second venthole 211.Micropump
100 when being pressurized, and air-flow can increase by multigroup second venthole 211 simultaneously into deaeration chamber to improve micropump 100
Press efficiency;When pressure release, device in one-way on state closes multigroup second venthole 211 so that air-flow can not adverse current.
In some alternative embodiments, device in one-way on state is umbrella valve 50, and umbrella valve 50 includes:Bar portion 51 and umbrella portion 52.
Wherein, bar portion 51 is embedded in the location hole 14 of valve seat 20.Umbrella portion 52 is connected to the top of bar portion 51 and umbrella portion 52 and covers every group
Second venthole 211.In other words, the outer peripheral edge in umbrella portion 52 is arranged around every group of 211 periphery of the second venthole, and umbrella portion 52 is for beating
Every group of second venthole 211 is closed on or off.
In a specific embodiment, every group of second venthole 211 includes multiple second ventholes 211, and multiple second is logical
Stomata 211 is uniformly distributed around location hole 14.Thus, it is possible to so that air-flow more balances when being pressurized, reduction air-flow flowing is made an uproar
Sound, to reduce the work noise of micropump 100.
In further optional example, as shown in Fig. 2, the upper surface of valve seat 20 is equipped with multiple positioning columns 22, under upper cover 10
Surface is equipped with multiple location holes 14 coordinated with positioning column 22.Pass through the mutual cooperation of multiple positioning columns 22 and multiple location holes 14
Further increase fitment stability between upper cover 10 and valve seat 20.
In still other embodiments of the present invention, as shown in figure 3, recess is formed with first chamber 15 upwards for the bottom surface of upper cover 10
With second chamber 16, communicating passage 17 is equipped between first chamber 15 and second chamber 16.That is, in pressure leak process, gas
Stream can support valve opening piece 30 and enter after first chamber 15, and enter second chamber 16 from first chamber 15 by communicating passage 17
It is interior.
In further alternative embodiment, leakage port 12 is opened on first chamber 15 and from the top surface of first chamber 15 to downward
It stretches to form gas outlet.As shown in Figure 1, the lower face of gas outlet and the lower face of upper cover 10 are generally in same level, by
This, can make valve block 30 be attached at the lower face of gas outlet, and air-flow in pressurization is avoided to pass through under valve block 30 and gas outlet
Gap discharge between end face.
In one particular embodiment of the present invention, umbrella valve 50 includes two, and valve seat 20 is provided with two group of second ventilation
Hole, one of umbrella valve 50 are oppositely arranged to form airtight chamber with thinner wall section 31, another umbrella valve 50 and the first venthole
321 is corresponding.That is, in 100 pressurization of micropump, two umbrella valves 50 open simultaneously the second venthole, part gas
Body, into air inlet chamber, is discharged, another part gas, which enters in airtight chamber, to be acted on by the first venthole 321 from exhaust outlet 13
The bottom surface of valve block 30 so that valve block 30 is tightly attached to the lower face of pressure relief opening 12.Valve seat 20 be equipped with row pressure mouth 23, row pressure mouth 23 with it is close
Chamber is closed to send out the indoor gas of closed chamber outward.That is, no matter in supercharging or pressure leak process, it is closed
Chamber is communicated by row pressure mouth 23 with the external world always, in this way, in pressurization, fraction will outward be arranged by row pressure mouth 23
Go out;When pressure release, air-flow can also be discharged by row pressure mouth 23 to effectively avoiding the indoor air pressure of closed chamber excessive so that
Valve block 30 can not normally open leakage port 12, thereby it is ensured that micropump 100 has stable supercharging and decompression function.It can manage
Solution, the discharge rate in 23 unit interval of row pressure mouth is far smaller than the aeration quantity in 100 unit interval of micropump, to ensure
Micropump 100 has quick aerification function, but also with stable decompression function.
Optionally, row pressure mouth 23 is formed in the top surface of valve seat 20.Thus, it is possible to so that 20 producing process of valve seat more
Simply, the production cost of micropump 100 is reduced.
Electronic sphygmomanometer (not shown) according to the ... of the embodiment of the present invention includes the micropump 100 of above-described embodiment, due to
The supercharging and pressure release of micropump 100 according to the ... of the embodiment of the present invention are stablized, therefore, electronic sphygmomanometer according to the ... of the embodiment of the present invention
Supercharging and blood pressure stabilization, product quality are high.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case of can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (16)
1. a kind of micropump, which is characterized in that including:
Upper cover, the upper cover bottom peripheral edge have at least partly been downwardly extending first connecting portion, and the upper cover includes at least one
A leakage port and at least one exhaust outlet;
Valve seat, the valve seat top perimeter at least partly upwardly extends to be formed with to be connected with the first connecting portion matched second
Socket part, the first connecting portion and the second connecting portion welding form one and limit and the leakage port and the exhaust
The gas chamber of mouth connection;
Valve block, the valve block are located between the upper cover and the valve seat, and the valve block is only butted on the leakage port to close
The leakage port.
2. micropump according to claim 1, which is characterized in that a part for the valve block is thinner wall section, the thin-walled
Portion is only butted on the leakage port to close the leakage port, and another part of the valve block is thick wall portion, and the thick wall portion limits
Go out the first venthole.
3. micropump according to claim 2, which is characterized in that the top surface of the thinner wall section and the thick wall portion is in same
One horizontal plane.
4. micropump according to claim 2, which is characterized in that the thickness range of the thick wall portion is 0.2-0.9 millimeters
Between, between the thickness range of the thinner wall section is 0.08-0.2 millimeters.
5. micropump according to claim 1, which is characterized in that the first connecting portion is convex ribs, second connection
Portion is boss, and the top surface of the boss is recessed downwards the holding tank formed for receiving the convex ribs.
6. micropump according to claim 5, which is characterized in that the altitude range of the boss is in 0.5-1.5 millimeters
Between.
7. micropump according to claim 2, which is characterized in that the valve seat has multigroup second venthole, every group the
Two ventholes are correspondingly arranged a device in one-way on state, and the device in one-way on state is used to open or closes second ventilation
Hole.
8. micropump according to claim 7, spy are, the device in one-way on state is umbrella valve, the umbrella valve
Including:
Bar portion, the bar portion are embedded in the location hole of the valve seat;
Umbrella portion, the umbrella portion are connected to the top of the bar portion and the umbrella portion and cover every group of second venthole.
9. micropump according to claim 7, which is characterized in that every group of second venthole includes multiple second ventholes,
Multiple second ventholes are uniformly distributed around the location hole.
10. micropump according to claim 1, which is characterized in that the upper surface of the valve seat is equipped with multiple positioning columns, institute
The lower surface for stating upper cover is equipped with multiple location holes with positioning column cooperation.
11. micropump according to claim 1, which is characterized in that recess is formed with first upwards for the bottom surface of the upper cover
Chamber and second chamber are equipped with communicating passage between the first chamber and the second chamber.
12. micropump according to claim 11, which is characterized in that the leakage port be opened on the first chamber and from
The top surface of the first chamber is downwardly extending gas outlet.
13. micropump according to claim 8, which is characterized in that the umbrella valve includes two, and the valve seat is provided with
Two group of second venthole, one of umbrella valve and the thinner wall section are oppositely arranged to form airtight chamber, another umbrella valve with
First venthole is corresponding.
14. micropump according to claim 13, which is characterized in that the valve seat be equipped with row pressure mouth, the row pressure mouth with
Airtight chamber's connection to send out the indoor gas of the closed chamber outward.
15. micropump according to claim 14, which is characterized in that the row pressure mouth is formed in the top surface of the valve seat.
16. a kind of electronic sphygmomanometer, which is characterized in that including the micropump described in any one of claim 1-15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710237361.1A CN108691748A (en) | 2017-04-12 | 2017-04-12 | Micropump and electronic sphygmomanometer with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710237361.1A CN108691748A (en) | 2017-04-12 | 2017-04-12 | Micropump and electronic sphygmomanometer with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108691748A true CN108691748A (en) | 2018-10-23 |
Family
ID=63843668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710237361.1A Pending CN108691748A (en) | 2017-04-12 | 2017-04-12 | Micropump and electronic sphygmomanometer with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108691748A (en) |
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| CN103790811A (en) * | 2012-10-26 | 2014-05-14 | 厦门科际精密器材有限公司 | Miniature air pump |
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| JP2016200067A (en) * | 2015-04-10 | 2016-12-01 | 株式会社村田製作所 | Fluid control device |
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