CN208259961U - A kind of magnetic suspension shaft streaming self power generation artificial heart pump - Google Patents
A kind of magnetic suspension shaft streaming self power generation artificial heart pump Download PDFInfo
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- CN208259961U CN208259961U CN201721737444.9U CN201721737444U CN208259961U CN 208259961 U CN208259961 U CN 208259961U CN 201721737444 U CN201721737444 U CN 201721737444U CN 208259961 U CN208259961 U CN 208259961U
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Abstract
The utility model relates to artificial heart pump fields, more particularly to a kind of magnetic suspension shaft streaming self power generation artificial heart pump.The device includes suspending power stator, rotating mechanism, torque stator, the pump housing, blood channel, reflux power generator and exhaust system；Pump housing inner cavity is equipped with torque stator, torque stator upper and lower ends are equipped with torque stator battery cavities, built-in torque stator battery, pump housing upper and lower ends are respectively provided with a pump cover, and upper and lower pump cover is respectively equipped with blood outlet and blood input port, is equipped with suspending power stator battery cavities in pump cover, built-in suspending power stator battery, suspending power stator and rotating mechanism are equipped between upper and lower pump cover, the axis of pump cover end is equipped with reflux power generator, is equipped with exhaust system on the outside of torque stator inside and suspending power stator.The utility model carries power generator, and cruising ability is strong；Operation stability is high, power loss is low；It can be placed in human body for a long time and realize blood-pumping function instead of heart.
Description
Technical field
The utility model relates to artificial heart pump fields, more particularly to a kind of magnetic suspension shaft streaming self power generation artificial heart
Pump.
Background technique
Heart disease is all the major reason for leading to human death all the time, due to lacking for portable nature heart resource
It is weary, the gradually extensive concern by domestic and international experts and scholars is researched and developed to artificial heart.
The research and development of artificial heart start from early 20th century, mainly experienced great change three times: the artificial heart of the first generation so far
Dirty pump imitates cardiac pulse formula pump by the periodically variable air driven pump of volume according to the physiological property development of human heart
Blood, but this pump configuration is complicated, volume is big, energy consumption is high, easily causes thrombus, has very first mate to the patient for receiving artificial heart transplanting
Effect；Second generation artificial heart pump is axial-flow type, carries out continuous pump blood using high speed rotor, size compared with small, output flow is big, but
The problems such as being easy to cause temperature to increase with haemolysis, thrombus due to the mechanical friction using traditional mechanical structure, generation；In order to solve
Second generation artificial heart pump there are the problem of, third generation artificial heart pump use magnetic levitation technology, rotor and its are made by magnetic force
The problems such as its structure is without directly contacting, effectively overcoming mechanical friction, but led there are still cruising ability difference and because of magnetic field coupling
The problems such as operation stability of cause is poor, power loss is high, there are also biggish development spaces.
Summary of the invention
The shortcomings that the purpose of the utility model is to overcome existing artificial heart pumps, it is comprehensive using magnetic levitation technology, it is shaftless
Bearing switch magnetoresistive technologies, temperature difference power technology and ordinary motor technology propose that a kind of included power generator, cruising ability be strong, operation
The magnetic suspension shaft streaming self power generation artificial heart pump that stability is high, power loss is low, technical solution is: a kind of magnetic suspension shaft streaming
Self power generation artificial heart pump, including suspending power stator, rotating mechanism, torque stator, the pump housing, blood channel, reflux power generator
And exhaust system；The pump housing inner cavity is equipped with torque stator, and torque stator includes torque stator iron core and torque winding, and
Torque winding is wound on torque stator iron core；The torque stator upper and lower ends are equipped with torque stator battery cavities, and built-in torque is fixed
Sub- battery；The pump housing upper and lower ends are respectively provided with a pump cover, and the bottom middle position of lower pump cover is equipped with blood input port, upper pump
The top center position of lid is equipped with blood outlet；The pump cover is equipped with suspending power stator battery cavities, built-in suspending power stator electricity
Pond；The outer radial magnetization permanent magnet is embedded in pump cover end；The pump cover is set there are four the connection frame of circumferentially array distribution, is led to
It crosses connection frame and connects into an entirety for pump cover is inside and outside；The pump housing and pump cover are equipped with mutually matched screw thread, can be right
Overall structure is split and is assembled；Suspending power stator and rotating mechanism are equipped between lower pump cover and upper pump cover；The suspending power
Stator is located in rotating mechanism inner cavity, and is fixed by lower pump cover and upper pump cover, and suspending power stator includes that suspending power is fixed
Sub- iron core and levitation force winding, and levitation force winding is wound on suspending power stator core；The rotating mechanism is from inside to outside successively
Ring, magnetism-isolating loop and magnetic suspension rotor are adjusted equipped with radial position, three's height is identical and is fixedly connected sequentially, rotating mechanism both ends
Equipped with every magnetic pedestal and interior diametrical magnetization permanent magnet, interior diametrical magnetization permanent magnet is mounted on to be magnetized every on magnetic pedestal and with outer radial
Permanent magnet like pole is opposite；The axis of the pump cover end is equipped with reflux power generator；The inside of the torque stator and outstanding
The outside of buoyancy stator is equipped with cricoid exhaust system.
The technical solution of the utility model is also: the magnetic suspension rotor is 8 tooth helical structures, and helix angle is 30 degree,
Rotary motion damage caused by haemocyte of magnetic suspension rotor tooth can be reduced, magnetic suspension rotor drives blood directly as impeller
Liquid autoblood input port flows into, and then flows out from blood outlet；The suspending power stator is four tooth helical structures, helix angle
It is 30 degree；The torque stator is 12 tooth helical structures, and helix angle is 30 degree.
The technical solution of the utility model is also: the levitation force winding is four phases, including P1 phase, P2 phase, P3 phase and P4
Corresponding winding phase is connected according to the different conditions of rotating mechanism in phase, after levitation force winding is powered, according to " magnetic resistance is minimum former
Reason " generates and acts on the radial electromagnetic attraction that radial position adjusts ring, and then carries out to the radial position of whole rotating mechanism
It adjusts, rotating mechanism is made to keep stable suspersion.
The technical solution of the utility model is also: the torque winding is three-phase, including A phase, B phase and C phase, turn-on sequence
For " A phase-C phase-B phase ", after torque winding is powered, according to " magnetic resistance minimum principle ", the electromagnetism for acting on magnetic suspension rotor is generated
Torque, driving rotating mechanism rotation.
The technical solution of the utility model is also: the magnetism-isolating loop is made of magnetic separator, is located at radial position and is adjusted ring
Between magnetic suspension rotor, the magnetic line of force that the magnetic line of force and torque winding that levitation force winding generates generate is separated, to realize
The decoupling of torque field and suspension magnetic improves operation stability, reduces control algolithm difficulty, reduces power loss.
The technical solution of the utility model is also: producing between the interior diametrical magnetization permanent magnet and outer radial magnetization permanent magnet
Raw repulsive force and the axial force of blood flow generation, blood are to the buoyancy of rotating mechanism, the self gravity of rotating mechanism and diameter
To power collective effect, realize that the unstable state of rotating mechanism suspends；On the one hand, the use of permanent magnetism, which reduces, maintains rotating mechanism to suspend
Energy loss, on the other hand, interior diametrical magnetization permanent magnet and outer radial magnetization permanent magnet between have repulsive force, can suspend
Power winding radiai adjustment makes rotating mechanism that can still keep certain stability in the case where failing, and will not touch with other parts
It hits, improves security performance.
The technical solution of the utility model is also: logical equipped with blood backflow between the rotating mechanism and suspending power stator
Road, in magnetic suspension rotor work, the output end pressure of blood main channel can be greater than the input end pressure of blood main channel, therefore
Small part blood is had because pressure difference from the output end of blood main channel flows into blood backflow channel, the blood in blood backflow channel
Liquid can continue to flow under the action of pressure difference, be sent to the input terminal of blood main channel again.
The technical solution of the utility model is also: the axial direction that the reflux power generator passes through blood in blood backflow channel
It flows to push the wheel rotation of reflux power generator to generate electricity, and the electric energy feedback obtained by power generation is determined to suspending power
Sub- battery is stored, and then is powered for levitation force winding；The vane edge of reflux power generator is surrounded with annulus, to prevent
Reaction force only is generated to magnetic suspension rotor.
The technical solution of the utility model is also: the exhaust system uses two kinds of different semiconductor systems of magnetic conductivity
Heat can be generated after being powered at, levitation force winding and torque winding, exhaust system side temperature is caused to increase, according to " plug
Bake effect " is generated electricity using the temperature difference between temperature end and blood, and by by the obtained electric energy feedback of power generation to turn
Square stator battery is stored, and then is torque winding power；In addition, the exhaust system also has the work of isolation blood
With providing dry working environment for torque stator battery, levitation force winding and torque winding.
The advantageous effects of the utility model are: the reflux power generator and exhaust system utilize excess energy
It generates electricity, enhances the cruising ability of device, improves the utilization rate to energy；The radial position adjusts ring and magnetic suspension
Magnetism-isolating loop is added between rotor, relieves the coupling between suspension magnetic and torque field, improves operation stability, reduce
The complexity of control algolithm is eliminated because of power loss caused by coupling；The interior diametrical magnetization permanent magnet and outer radial magnetization
Permanent magnet improves the safety of the stability and device entirety of magnetic suspension rotor operation while reducing power loss；Institute
Magnetic suspension rotor is stated directly as impeller, the liquid drivens equipment such as external impeller is not required to, further reduced power loss；It utilizes
Helix angle provides preceding stand in channel for 30 degree of helicoid for blood, not only can reduce in the course of work to the damage of haemocyte but also
It is capable of providing sufficiently large flow；Stator and rotor tooth is all made of helical structure, has bigger unit volume output power；It is described
Suspending power stator is placed in the inner cavity of rotating mechanism, further reduced power loss by mitigating rotating mechanism quality, simultaneously
So that the overall structure of device is more compact.
Detailed description of the invention
Fig. 1 is the general structure schematic diagram of the utility model one embodiment.
Fig. 2 is the planar structure schematic diagram of the utility model one embodiment.
Fig. 3 is the levitation force winding and torque winding schematic diagram of the utility model one embodiment.
Fig. 4 is the suspending power stator of the utility model one embodiment, radial position adjusting ring, magnetism-isolating loop, magnetic suspension turn
The structural schematic diagram of son and torque stator.
In figure: 1 is suspending power stator, and 11 be suspending power stator core, and 12 be levitation force winding, and 2 be rotating mechanism, and 21 are
Radial position adjusts ring, and 22 be magnetism-isolating loop, and 23 be magnetic suspension rotor, and 24 is every magnetic pedestals, and 25 be interior diametrical magnetization permanent magnet, and 3
It is torque stator iron core for torque stator, 31,32 be torque winding, and 4 be the pump housing, and 41 be pump cover, and 411 be lower pump cover, and 412 be upper
Pump cover, 42 be suspending power stator battery cavities, and 43 be suspending power stator battery, and 44 be torque stator battery cavities, and 45 be torque stator
Battery, 46 magnetize permanent magnet for outer radial, and 47 be connection frame, and 48 be screw thread, and 5 be blood channel, and 51 be blood main channel, and 52 are
Blood backflow channel, 53 be blood input port, and 54 be blood outlet, and 6 be reflux power generator, and 7 be exhaust system.
Specific embodiment
The utility model is generated electricity by suspending power stator 1, rotating mechanism 2, torque stator 3, the pump housing 4, blood channel 5, reflux
Device 6 and 7 seven part of exhaust system composition；4 inner cavity of the pump housing is equipped with torque stator 3, and torque stator 3 is fixed including torque
Sub 3 iron cores 31 and torque winding 32, and torque winding 32 is wound on 3 iron core 31 of torque stator；3 upper and lower ends of torque stator
Equipped with torque stator battery cavities 44, built-in torque stator battery 45, for powering for torque winding 32；The pump housing about 4 two
End is respectively provided with a pump cover 41, and the bottom middle position of lower pump cover 411 is equipped with blood input port 53, in the top of upper pump cover 412
Meta position has installed the defeated place mouthful 54 of blood；The pump cover 41 be equipped with suspending power stator battery cavities 42, built-in suspending power stator battery 43,
For powering for levitation force winding 12；The outer radial magnetization permanent magnet 46 is embedded in 41 end of pump cover；The pump cover 41 is equipped with four
The connection frame 47 of a circumferentially array distribution connects into an entirety for pump cover 41 is inside and outside by connection frame 47；It is described
The pump housing 4 and pump cover 41 are equipped with mutually matched screw thread 48, can overall structure be split and be assembled；Lower pump cover 411 and upper pump
Suspending power stator 1 and rotating mechanism 2 are equipped between lid 412；The suspending power stator 1 is located in 2 inner cavity of rotating mechanism, by upper and lower
Two pump covers 41 are fixed, and suspending power stator 1 includes suspending power stator core 11 and levitation force winding 12, and levitation force winding
12 are wound on suspending power stator core 11；The rotating mechanism 2 is successively arranged radial position from inside to outside and adjusts ring 21, magnetism-isolating loop
22 and magnetic suspension rotor 23, three's height is identical and is fixedly connected sequentially, and 2 both ends of rotating mechanism are equipped with every magnetic pedestal 24 and internal diameter
To magnetization permanent magnet 25, interior diametrical magnetization permanent magnet 25 be mounted on every on magnetic pedestal 25 and with outer radial magnetize 46 same sex of permanent magnet
Magnetic pole is opposite；The axis of 41 end of pump cover is equipped with reflux power generator 6；The inside of the torque stator 3 and suspending power are fixed
The outside of son 1 is equipped with cricoid exhaust system 7.
The realization of torque field and suspension magnetic decoupling: the magnetism-isolating loop 22 is made of magnetic separator, is turned positioned at magnetic suspension
Son 23 and radial position are adjusted between ring 21, the magnetic line of force that the magnetic line of force and levitation force winding 32 for generating torque winding 12 generate
Mutually independent magnetic circuit is formed, to release the coupling between torque field and suspension magnetic, operation stability is improved, reduces control
Algorithm difficulty processed reduces power loss.
The realization that unstable state suspends: described to magnetize permanent magnet every magnetic pedestal 24, interior diametrical magnetization permanent magnet 25 and outer radial
46 coaxial distributions, interior diametrical magnetization permanent magnet 25 are mounted on every magnetizing 46 same polarity phase of permanent magnet on magnetic pedestal 24 and with outer radial
Axial direction right, that the repulsive force and blood flow generated between interior diametrical magnetization permanent magnet 25 and outer radial magnetization permanent magnet 46 generates
Power, blood realize rotating mechanism 2 to the buoyancy of rotating mechanism 2, the self gravity of rotating mechanism 2 and radial force collective effect
Unstable state suspends.
The realization that stable state suspends: after any phase winding of the levitation force winding 12 is powered, according to " magnetic resistance minimum principle "
Can obtain, will generate act on radial position adjust ring 21 one direction magnetic pull, the size of magnetic pull be proportional to energized phase around
The size of current of group, therefore after the conducting of arbitrary neighborhood two-phase levitation force winding 12, it, can be logical two by the synthesis of current control power
The magnetic pull that ring 21 generates any direction and size is adjusted to radial position within the scope of 90 degree where electric phase winding, and then to whole
The radial position of a rotating mechanism 2 is adjusted, and rotating mechanism 2 is made to reach stable state suspension.
Rotate the realization of driving: definition is counterclockwise that rotating mechanism 2 moves positive direction, when work, torque stator electricity
Pond 45 is that torque winding 32 provides power supply, and torque winding 32 is connected according to the sequence of " A phase-C phase-B phase "；Torque winding 32 is powered
Afterwards, according to " magnetic resistance minimum principle ", the electromagnetic rotating power for acting on magnetic suspension rotor 23 is generated, to drive 2 turns of rotating mechanism
It is dynamic.
The realization of self power generation: blood backflow channel 52 is equipped between the rotating mechanism 2 and suspending power stator 1, in pressure
Under the action of difference, part blood can flow into blood backflow channel 52 from the output end of blood main channel 51, then come back to blood
The input terminal of liquid main channel 51, reflux power generator 6 are pushed back using the axial flowing of the blood in blood backflow channel 52
The impeller rotation of stream power generator 6 generates electricity, and the electric energy feedback that power generation obtains is carried out into suspending power stator battery 43
Storage；The exhaust system 7 is made of two kinds of different semiconductors of magnetic conductivity, levitation force winding 12 and torque winding 32
Heat can be generated after energization, 7 side temperature of exhaust system is caused to increase, according to " Seebeck effect ", using temperature end with
Temperature difference between blood generates electricity, and the electric energy feedback obtained by power generation is stored to torque stator battery 45,
Furthermore the exhaust system 7 also have the function of be isolated blood, be torque stator battery 45, levitation force winding 12 and torque around
Group 32 provides dry working environment.
A kind of course of work of magnetic suspension shaft streaming self power generation artificial heart pump: in the initial state, the inside of the pump housing 4 is taken out
Vacuum, it is at this time the magnetic suspension shaft streaming that blood autoblood input port 53, which flows into and be full of entire blood channel 5, after connecting blood vessel
Self power generation artificial heart pump is powered, and under the action of magnetic suspension rotor 23, the blood autoblood delivery outlet 54 in blood channel 5 flows
Out.
Claims (5)
1. a kind of magnetic suspension shaft streaming self power generation artificial heart pump, including suspending power stator (1), rotating mechanism (2), torque stator
(3), the pump housing (4), blood channel (5), reflux power generator (6) and exhaust system (7)；
The pump housing (4) inner cavity is equipped with torque stator (3), and torque stator (3) includes torque stator iron core (31) and torque winding
(32), and torque winding (32) is wound on torque stator iron core (31)；Torque stator (3) upper and lower ends are equipped with torque stator
Battery cavities (44), built-in torque stator battery (45)；
The pump housing (4) upper and lower ends are respectively provided with a pump cover (41), and it is defeated that the bottom middle position of lower pump cover (411) is equipped with blood
The top center position of entrance (53), upper pump cover (412) is equipped with blood outlet (54)；The pump cover (41) is fixed equipped with suspending power
Sub- battery cavities (42), built-in suspending power stator battery (43)；Outer radial magnetizes permanent magnet (46) and is embedded in pump cover (41) end；It is described
Pump cover (41) is set there are four the connection frame (47) of circumferentially array distribution, by connection frame (47) that pump cover (41) is inside and outside
Connect into an entirety；The pump housing (4) and pump cover (41) are equipped with mutually matched screw thread (48), can tear open to overall structure
Divide and assembles；
Suspending power stator (1) and rotating mechanism (2) are equipped between lower pump cover (411) and upper pump cover (412)；The suspending power stator
(1) it is located in rotating mechanism (2) inner cavity, and is fixed by lower pump cover (411) and upper pump cover (412), suspending power stator
It (1) include suspending power stator core (11) and levitation force winding (12), and levitation force winding (12) is wound on suspending power stator core
(11) on；The rotating mechanism (2) is successively arranged radial position from inside to outside and adjusts ring (21), magnetism-isolating loop (22) and magnetic suspension turn
Sub (23), three's height is identical and is fixedly connected sequentially, and rotating mechanism (2) both ends are equipped with every magnetic pedestal (24) and interior diametrical magnetization
Permanent magnet (25), interior diametrical magnetization permanent magnet (25) are mounted on same every magnetizing permanent magnet (46) on magnetic pedestal (24) and with outer radial
Property magnetic pole is opposite；
The axis of pump cover (41) end is equipped with reflux power generator (6)；The inside of the torque stator (3) and suspending power are fixed
The outside of sub (1) is equipped with cricoid exhaust system (7).
2. a kind of magnetic suspension shaft streaming self power generation artificial heart pump according to claim 1, it is characterised in that: the magnetcisuspension
Floating rotor (23) are 8 tooth helical structures, and helix angle is 30 degree, and magnetic suspension rotor (23) drives blood certainly directly as impeller
Blood input port (53) flows into, and flows out from blood outlet (54)；The suspending power stator (1) is 4 tooth helical structures, spiral
Lift angle is 30 degree, after levitation force winding (12) is powered, generates and acts on the radial two degrees of freedom electricity that radial position adjusts ring (21)
Magnetic force, and then adjust rotating mechanism (2) radial position；The torque stator (3) is 12 tooth helical structures, helix angle 30
Degree after torque winding (32) is powered, generates the electromagnetic torque for acting on magnetic suspension rotor (23), driving rotating mechanism (2) rotation.
3. a kind of magnetic suspension shaft streaming self power generation artificial heart pump according to claim 1, it is characterised in that: described every magnetic
Ring (22) is made of magnetic separator, is located at radial position and is adjusted between ring (21) and magnetic suspension rotor (23), makes levitation force winding
(12) magnetic line of force that the magnetic line of force and torque winding (32) generated generates forms two mutually independent magnetic circuits, to realize torque
The decoupling in magnetic field and suspension magnetic improves operation stability, reduces power loss.
4. a kind of magnetic suspension shaft streaming self power generation artificial heart pump according to claim 1, it is characterised in that: the internal diameter
To the repulsive force that generates between magnetization permanent magnet (25) and outer radial magnetization permanent magnet (46) and the axial force of blood flow generation,
Blood realizes rotating mechanism (2) buoyancy of rotating mechanism (2), the self gravity and radial force collective effect of rotating mechanism (2)
Unstable state suspend.
5. a kind of magnetic suspension shaft streaming self power generation artificial heart pump according to claim 1, it is characterised in that: the rotation
Blood backflow channel (52) are equipped between mechanism (2) and suspending power stator (1), under the action of pressure difference, part blood can be from
The output end of blood main channel (51) flows into blood backflow channel (52), then comes back to the input of blood main channel (51)
End, reflux power generator (6) push reflux power generator using the axial flowing of blood in blood backflow channel (52)
(6) wheel rotation generates electricity, and by power storage to suspending power stator battery (43), and then supplies for levitation force winding (12)
Electricity；The exhaust system (7) is made of two kinds of different semiconductors of magnetic conductivity, levitation force winding (12) and torque winding
(32) heat can be generated after being powered, so that the two sides of exhaust system (7) generate temperature difference, according to Seebeck effect, is utilized
Generated temperature difference generates electricity, and by power storage to torque stator battery (45), and then powers for torque winding (32),
Furthermore the exhaust system (7) also have the function of be isolated blood, be torque stator battery (45), levitation force winding (12) and
Torque winding (32) provides dry working environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737444.9U CN208259961U (en) | 2017-12-14 | 2017-12-14 | A kind of magnetic suspension shaft streaming self power generation artificial heart pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721737444.9U CN208259961U (en) | 2017-12-14 | 2017-12-14 | A kind of magnetic suspension shaft streaming self power generation artificial heart pump |
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| Publication Number | Publication Date |
|---|---|
| CN208259961U true CN208259961U (en) | 2018-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721737444.9U Expired - Fee Related CN208259961U (en) | 2017-12-14 | 2017-12-14 | A kind of magnetic suspension shaft streaming self power generation artificial heart pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208259961U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837430A (en) * | 2017-12-14 | 2018-03-27 | 山东科技大学 | A kind of magnetic suspension shaft streaming self power generation artificial heart pump |
| WO2020220857A1 (en) * | 2019-04-29 | 2020-11-05 | 苏州苏磁智能科技有限公司 | High-efficiency magnetic coupling and levitation pump |
-
2017
- 2017-12-14 CN CN201721737444.9U patent/CN208259961U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837430A (en) * | 2017-12-14 | 2018-03-27 | 山东科技大学 | A kind of magnetic suspension shaft streaming self power generation artificial heart pump |
| CN107837430B (en) * | 2017-12-14 | 2024-03-19 | 山东科技大学 | Magnetic suspension axial flow type self-generating artificial heart pump |
| WO2020220857A1 (en) * | 2019-04-29 | 2020-11-05 | 苏州苏磁智能科技有限公司 | High-efficiency magnetic coupling and levitation pump |
| US11754076B2 (en) | 2019-04-29 | 2023-09-12 | Suzhou Supermag Intelligent Technology Co., Ltd | Magnetic coupling suspension pump |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |