CN207575492U - A kind of magnetic suspension nutating heart pump of electromagnetic drive - Google Patents
A kind of magnetic suspension nutating heart pump of electromagnetic drive Download PDFInfo
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- CN207575492U CN207575492U CN201720392789.9U CN201720392789U CN207575492U CN 207575492 U CN207575492 U CN 207575492U CN 201720392789 U CN201720392789 U CN 201720392789U CN 207575492 U CN207575492 U CN 207575492U
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Abstract
A kind of magnetic suspension nutating heart pump of electromagnetic drive is provided,Including the pump housing with liquid inlet and liquid outlet and the nutation wheel being set in the pump housing,The nutation wheel includes the non-magnetic inner ring and outer ring magnet ring being fixedly connected and forms,The upper surface and the lower surface in the middle part of non-magnetic inner ring is equipped with hemispherical Shell magnet,The upper surface and the lower surface in the pump housing is equipped with the hemispherical Shell magnetic cover of corresponding nutation wheel hemispherical Shell magnet periphery,Magnetism is identical between the hemispherical Shell magnetic cover and hemispherical Shell magnet makes hemispherical Shell magnet not contacted with pump housing inner surface so that nutation wheel is suspended in the fluid chamber in the pump housing,The pump housing top is equipped with the electromagnetic actuator device that driving hemispherical Shell magnet glances off,Mechanism is obstructed between liquid inlet and liquid outlet in the pump housing,When electromagnetic actuator device driving hemispherical Shell magnet glances off to contact outer ring magnet ring with the line of the pump housing inner surface fluid chamber in the pump housing is separated to form two regions with obstructing mechanism realization,No friction simple in structure,Without lubrication,Noise is small,The advantages that fever is less and Energy Efficiency Ratio is high,Heart chamber auxiliary pump is reduced simultaneously generates the probability of haemolysis and thrombus and the pollution to blood.
Description
Technical field
The utility model is related to a kind of magnetic suspension nutating heart pumps of electromagnetic drive.
Background technology
Heart pump is the critical component of ventricular assist device, and common heart pump is broadly divided into rotation（Blade）Formula and volume
Formula.Rotary pump is rotated in the housing by impeller, the conversion of energy is realized by the variation of hydrokinetic parameter, so as to produce
The raw blood continuously flowed.Since this pump in work is in high speed rotation, blade can generate greatly machine to haemocyte
Tool is sheared, and leads to the formation of haemolysis and thrombus.Positive displacement blood pump is to be done work by the change of volume to liquid, increases its energy
Add, the directed flow of blood is realized by the effect of check valve.The shortcomings that positive displacement heart pump is maximum is that volume is big, is not easy to plant
Enter, and easy infection, thrombus and haemolysis are also than more serious.Such as the Chinese invention patent of publication number CN105477705A, movement portion
Part needs motor shaft to directly drive, and the kinematic pair of this contact can generate destruction, and blood is easily from motor shaft to haemocyte
It is leaked in hole.
Invention content
The utility model improves the above problem, i.e., the technical problems to be solved in the utility model is the existing heart
Dirty pump is that volume is big, is not easy to be implanted into, and easy infection, thrombus and haemolysis are also than more serious.
The specific embodiment of the utility model is：A kind of magnetic suspension nutating heart pump of electromagnetic drive, including have into
The pump housing of liquid mouth and liquid outlet and the nutation wheel being set in the pump housing, the nutation wheel include the non-magnetic inner ring being fixedly connected and
Outer ring magnet ring is formed, and the upper surface and the lower surface in the middle part of non-magnetic inner ring is equipped with hemispherical Shell magnet, the upper surface in the pump housing
And lower surface is equipped with the hemispherical Shell magnetic cover of corresponding nutation wheel hemispherical Shell magnet periphery, the hemispherical Shell magnetic cover and hemispherical Shell magnet it
Between it is magnetic it is identical hemispherical Shell magnet is made not contacted with pump housing inner surface so that nutation wheel is suspended in the fluid chamber in the pump housing, institute
It states pump housing top and is equipped with the electromagnetic actuator device that driving hemispherical Shell magnet glances off, liquid inlet is located in the pump housing and goes out liquid
Mechanism is obstructed between mouthful, when electromagnetic actuator device driving hemispherical Shell magnet is glanced off so as to fulfill will be in outer ring magnet ring and the pump housing
Fluid chamber in the pump housing is separated to form two regions by the line contact on surface so as to be realized with barrier mechanism.
Further, the pump housing includes shell and is set to the upper cover and lower cover of shell upper and lower ends, and described half
For spherical shell magnetic cover respectively embedded in the lower surface of upper cover and the upper surface of lower cover, the upper cover and lower cover forward surface are about outer ring magnet ring
The symmetrically arranged conical surface, conical surface direction are gradually close to outer ring magnet ring from pump housing center lateral outside the pump housing.
Further, the electromagnetic actuator device includes the electromagnet for being set to pump housing upper surface, the electromagnetic drive dress
The electromagnet including being set to pump housing upper surface is put, the electromagnet lower end generates the magnetic pole opposite with outer ring magnet ring upper surface.
Further, the barrier mechanism includes coulisse and partition board, and the edge of nutation wheel has that coulisse is allowed to wear
The notch crossed, is equipped with the pin being located in notch between two hemispherical Shell magnets of nutation wheel, and the coulisse is towards nutation wheel
One end offers the sliding slot slided in perpendicular for pin, and the partition board and coulisse upper and lower ends are fixed on the pump housing, every
Plate one end is fitted close the other end in shell with coulisse.
Further, the magnetic shoe quantity is 4.
Further, the upper cover and lower cover have the groove for accommodating coulisse and partition board.
Further, the number of the electromagnet is identical with magnetic shoe number and is correspondingly arranged.
Compared with prior art, the utility model has the advantages that：The heart pump uses electromagnetic drive, does not need to
Motor drive nutation wheel, driving part are not contacted with workpiece；Workpiece nutation wheel uses magnet ball pair, realizes complete
Driven suspension.Have many advantages, such as without friction, without lubrication, noise is small, fever less and Energy Efficiency Ratio is high, thoroughly solve the pump housing
The problems such as " run liquid, emit liquid, dropping liquid, leakage ", while reduce heart chamber auxiliary pump and generate the probability of haemolysis and thrombus and to blood
Pollution, high degree improves performance and the service life of pump.The present invention is pumped using power of the electromagnetic force as heart pump in volume
Upper entirety very little, it is compact-sized, convenient for operation transplantation.
Description of the drawings
Fig. 1 is the utility model decomposition texture schematic diagram.
Fig. 2 is the utility model assembled state longitudinal sectional drawing.
Fig. 3 is the utility model vertical view state flow chamber structure diagram.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, the magnetic suspension nutating heart pump of a kind of electromagnetic drive, including with liquid inlet 110 and liquid outlet
120 pump housing 10 and the nutation wheel 20 being set in the pump housing 10, the nutation wheel 20 include the non-magnetic inner ring 210 being fixedly connected
And outer ring magnet ring 240 is formed, the upper surface at non-magnetic 210 middle part of inner ring is equipped with upper hemispherical shell magnet 220, non-magnetic inner ring
210 lower surfaces are equipped with lower hemisphere shell magnet 230, and in the present embodiment, the pump housing 10 includes shell 101 and is set to shell
The upper cover 102 of 101 upper and lower ends and lower cover 103.
The upper cover 102 and 103 forward surface of lower cover be about the 220 symmetrically arranged conical surface of outer ring magnet ring, conical surface direction by
Lateral pump housing center is gradually close to outer ring magnet ring outside the pump housing.103 upper surface pair of 102 lower surface of upper cover and lower cover in the pump housing 10
The hemispherical Shell magnetic cover equipped with corresponding upper hemispherical shell magnet 220 and lower hemisphere shell magnet 230, the hemispherical Shell magnetic should be provided with
Cover includes being arranged on embedded in the upper hemispherical shell magnetic cover 130 of the lower surface of upper cover 102 and embedded in the lower part of 103 upper surface of lower cover half
Spherical shell magnetic cover 140, forward surface magnetism is identical between hemispherical Shell magnetic cover and corresponding hemispherical Shell magnet makes hemispherical Shell magnet and the pump housing
Inner surface does not contact so that nutation wheel is suspended in the fluid chamber in the pump housing.
It is N poles between hemispherical Shell magnetic cover and corresponding hemispherical Shell magnet in the present embodiment, the upper hemispherical in the present embodiment
Shell magnet 220 and lower hemisphere shell magnet 230 are made of the magnetic shoe of 4 arc shapes.
Pump housing upper casing 102 is equipped with the electromagnetic actuator device that driving hemispherical Shell magnet glances off, including pump housing upper surface
Electromagnet 30 realizes the fixation of electromagnet 30 in the present embodiment for convenience, and the electromagnet 30 is fixed in upper cover 102, leads to
When electric, 30 lower end of electromagnet generates the magnetic pole opposite with 240 upper surface of outer ring magnet ring, can adsorb outer ring magnet ring 240 in this way
Part brings it about deflection and is contacted with the upper casing of the pump housing and lower casing line.
Mechanism is obstructed between liquid inlet and liquid outlet in the pump housing, when electromagnetic actuator device drives hemispherical Shell magnet
It glances off to contact outer ring magnet ring with the line of pump housing inner surface to realize the stream in the pump housing with barrier mechanism
Body cavity volume is separated to form two regions.
In the present embodiment, barrier mechanism includes coulisse 40 and partition board 50, and the edge of nutation wheel 20 has to allow sliding slot
The notch 250 that plate 40 passes through is equipped with the pin 260 being located in notch, the cunning between two hemispherical Shell magnets of nutation wheel 20
40 plate of slot offers the sliding slot 40 slided in perpendicular for pin towards nutation wheel one end, in this way when 20 deflection mistake of nutation wheel
It will not deflect in journey, the partition board 50 and coulisse upper and lower ends are fixed in the pump housing 10,50 one end of partition board and coulisse
The other end is fitted close in shell 101.In the present embodiment, upper cover 102 and lower cover 103, which have, accommodates coulisse and partition board
Groove.
Before work, be illustrated in figure 2 off working state its internal cross section, the liquid reservoir of the pump housing 10 by a part of spherical surface and
Upper and lower two inner conical surfaces surround.During work, electromagnet 30 is according to certain sequence（Clockwise or counterclockwise）It is powered, first electromagnetism
One end of magnetic-adsorption outer ring magnet ring 240 is generated during Tie Tong electricity, tilts nutation wheel, electromagnet is successively after energization a cycle,
Nutation wheel 20 also realizes the nutation movement of a cycle, and the energization frequency of electromagnet 30 determines the movement velocity of nutation wheel.Nutating
Disk under electromagnet effect in liquid reservoir in heeling condition, and the above and below of nutation wheel respectively with upper cover 102 and lower cover
103 inner conical surface is contacted into line, and cavity is divided into two regions by contact line 104, and the region being connected with liquid inlet 110 is inlet region
Domain 111, the region being connected with liquid outlet 120 are exit region 121；
As shown in figure 3, when electromagnet power-up sequence is rotation counterclockwise（Under vertical view state）, nutation wheel 20 does counterclockwise
Circumferential cycle is swung,（Rotation will not occur for nutation wheel 20 under the position-limiting action of coulisse 40）, contact line is also done to be turned counterclockwise
It is dynamic, and the rotating speed of contact line is equal to the power cycles speed of electromagnet, at this moment entrance area 111 constantly becomes larger, and forms negative pressure, stream
Body is flowed into from entrance, and exit region 121 constantly becomes smaller, and fluid is extruded from outlet, when contact line goes to partition position, entrance
Region 111 reaches maximum, and exit region reaches minimum, and contact line bypasses partition board with the very short time, by original entrance area
Become exit region, then entrance area constantly becomes larger again from small, and exit region is so recycled from constantly becoming smaller greatly, so as to real
The input of existing liquid is with pumping out.
The heart pump uses electromagnetic drive, does not need to motor drive nutation wheel, driving part is not contacted with workpiece；
Workpiece nutation wheel uses magnet ball pair, realizes completely passive suspension.With without friction, without lubrication, noise it is small, fever
The advantages that less and Energy Efficiency Ratio is high thoroughly solves the problems, such as " run liquid, emit liquid, dropping liquid, leakage ", while reduces heart chamber auxiliary pump
It generates the probability of haemolysis and thrombus and the pollution to blood, high degree improves performance and the service life of pump.The present invention is using electricity
Power of the magnetic force as heart pump pumps the whole very little in volume, compact-sized, convenient for operation transplantation.
Meanwhile if above-mentioned the utility model discloses or relates to the parts or structural member of connection fastened to each other, then,
Unless otherwise stated, it is fixedly connected and can be understood as：Connection (such as being connected using bolt or screw) can be removedly fixed,
It can be appreciated that：It is non-removable to be fixedly connected with (such as riveting, welding), certainly, connection fastened to each other or one
Formula structure (such as being manufactured using casting technique is integrally formed) replaces (can not significantly be removed using integrally formed technique
Outside).
In addition, applied in any technical solution disclosed in above-mentioned the utility model for representing position relationship or shape
Term unless otherwise stated its meaning include approximate with its, similar or close state or shape.
Either component provided by the utility model by multiple individual component parts either assembled, or
The separate part that integrally formed technique manufactures.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (7)
1. the magnetic suspension nutating heart pump of a kind of electromagnetic drive, which is characterized in that including the pump housing with liquid inlet and liquid outlet
And the nutation wheel in the pump housing is set to, the nutation wheel includes the non-magnetic inner ring and outer ring magnet ring being fixedly connected and forms, and does not lead
The upper surface and the lower surface in the middle part of magnetic inner ring is equipped with hemispherical Shell magnet, and the upper surface and the lower surface in the pump housing is equipped with corresponding chapter
The hemispherical Shell magnetic cover of Moving plate hemispherical Shell magnet periphery, magnetism is identical between the hemispherical Shell magnetic cover and hemispherical Shell magnet makes hemispherical Shell
Magnet is not contacted with pump housing inner surface so that nutation wheel is suspended in the fluid chamber in the pump housing, and the pump housing top is equipped with driving
The electromagnetic actuator device that hemispherical Shell magnet glances off, the pump housing is interior to obstruct mechanism between liquid inlet and liquid outlet, when
Electromagnetic actuator device driving hemispherical Shell magnet glance off so as to fulfill outer ring magnet ring is contacted with the line of pump housing inner surface thus
It is realized with barrier mechanism and the fluid chamber in the pump housing is separated to form two regions.
A kind of 2. magnetic suspension nutating heart pump of electromagnetic drive according to claim 1, which is characterized in that the pump housing packet
It includes shell and is set to the upper cover and lower cover of shell upper and lower ends, the hemispherical Shell magnetic cover is embedded in the lower surface of upper cover respectively
And the upper surface of lower cover, the upper cover and lower cover forward surface are about the symmetrically arranged conical surface of outer ring magnet ring, and conical surface direction is by pumping
External lateral pump housing center is gradually close to outer ring magnet ring.
3. the magnetic suspension nutating heart pump of a kind of electromagnetic drive according to claim 2, which is characterized in that the electromagnetism drives
Dynamic device includes the electromagnet for being set to pump housing upper surface, and the electromagnet lower end generates the magnetic opposite with outer ring magnet ring upper surface
Pole.
A kind of 4. magnetic suspension nutating heart pump of electromagnetic drive according to claim 3, which is characterized in that the barrier machine
Structure includes coulisse and partition board, and the edge of nutation wheel has the notch coulisse to be allowed to pass through, two hemispherical Shells of nutation wheel
The pin being located in notch is equipped between magnet, the coulisse is offered for pin towards nutation wheel one end in perpendicular
The sliding slot of slip, the partition board and coulisse upper and lower ends are fixed on the pump housing, and partition board one end is fitted close the other end with coulisse
In shell.
5. a kind of magnetic suspension nutating heart pump of electromagnetic drive according to claim 3, which is characterized in that the upper cover and
Lower cover has the groove for accommodating coulisse and partition board.
A kind of 6. magnetic suspension nutating heart pump of electromagnetic drive according to claim 1, which is characterized in that hemispherical Shell magnet
It is put together by the magnetic shoe of multiple arcs shape.
A kind of 7. magnetic suspension nutating heart pump of electromagnetic drive according to claim 6, which is characterized in that the magnetic shoe number
Measure is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392789.9U CN207575492U (en) | 2017-04-14 | 2017-04-14 | A kind of magnetic suspension nutating heart pump of electromagnetic drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720392789.9U CN207575492U (en) | 2017-04-14 | 2017-04-14 | A kind of magnetic suspension nutating heart pump of electromagnetic drive |
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| Publication Number | Publication Date |
|---|---|
| CN207575492U true CN207575492U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720392789.9U Active CN207575492U (en) | 2017-04-14 | 2017-04-14 | A kind of magnetic suspension nutating heart pump of electromagnetic drive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964007A (en) * | 2017-04-14 | 2017-07-21 | 福州大学 | The magnetic suspension nutating heart pump and its application method of a kind of electromagnetic drive |
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2017
- 2017-04-14 CN CN201720392789.9U patent/CN207575492U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106964007A (en) * | 2017-04-14 | 2017-07-21 | 福州大学 | The magnetic suspension nutating heart pump and its application method of a kind of electromagnetic drive |
| CN106964007B (en) * | 2017-04-14 | 2023-07-18 | 福州大学 | Electromagnetic driven magnetic suspension nutation heart pump and use method thereof |
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