CN114499015A - Vortex type hydrogen circulating pump - Google Patents
Vortex type hydrogen circulating pump Download PDFInfo
- Publication number
- CN114499015A CN114499015A CN202210111621.1A CN202210111621A CN114499015A CN 114499015 A CN114499015 A CN 114499015A CN 202210111621 A CN202210111621 A CN 202210111621A CN 114499015 A CN114499015 A CN 114499015A
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- Prior art keywords
- pcb
- bearing
- pcb board
- motor
- metal
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 34
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 34
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 63
- 239000002184 metal Substances 0.000 claims abstract description 63
- 239000007789 gas Substances 0.000 claims abstract description 13
- 230000017525 heat dissipation Effects 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 210000004907 gland Anatomy 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 238000005192 partition Methods 0.000 abstract description 16
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- XVIZMMSINIOIQP-UHFFFAOYSA-N 1,2-dichloro-3-(2-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C(=CC=CC=2)Cl)=C1Cl XVIZMMSINIOIQP-UHFFFAOYSA-N 0.000 description 17
- 238000004891 communication Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
- H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
A vortex type hydrogen circulating pump comprises a motor and a supercharger, wherein a PCB (printed circuit board) is arranged in a controller cavity, a communicating hole is formed in a partition plate, a stator coil is fixedly connected with one end of a plurality of metal conductive plates, the other end of each metal conductive plate penetrates through the communicating hole to be connected with the PCB, and a sealing element is arranged at the communicating hole for sealing; the PCB board is installed at the top in controller chamber through hoisting structure and is used for accelerating the heat dissipation of PCB board with the end cover contact, PCB board and baffle interval set up and are used for reducing motor heat transfer to PCB board. The problem that part of the hydrogen-containing mixed gas is leaked to the outside from a gap between the rubber and the copper wire of the three-phase line into the cavity of the controller is avoided, and potential safety hazards are eliminated; the wiring is convenient and quick, the assembly efficiency can be improved, the axial size of the stator coil can be reduced, and the overall structure is more compact; the PCB has the advantages that heat generated by high-speed rotation of the motor is prevented from being directly transmitted to the PCB, the stability of the PCB is improved, the service life of the PCB is prolonged, and potential safety hazards are eliminated.
Description
The technical field is as follows:
the invention relates to a vortex type hydrogen circulating pump.
Background art:
the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the reaction of the fuel cell, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, on one hand, energy is wasted, on the other hand, the environment is polluted, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated, and therefore, the hydrogen needs to be recycled.
At present, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling. In order to solve the problem of hydrogen leakage in the working process of the hydrogen circulating pump, the applicant applies an invention patent with the publication number of CN215409282U on 8/3/2021, which discloses that the three-phase line of the stator directly passes through the communication hole on the partition board to be connected with the circuit board, however, in the specific use process, it is found that part of the hydrogen-containing mixed gas can leak out from the gap between the rubber and the copper wire of the three-phase line to the cavity of the controller, and the potential safety hazard of flammability and explosiveness is formed. In addition, three-phase line winding is complicated with the stator coil wiring in stator coil one end, reduces the packaging efficiency, can increase stator coil's axial dimensions moreover, leads to motor overall structure not compact enough. Thirdly, the heat that produces when the motor is high-speed rotatory can transmit the controller intracavity, makes the temperature of circuit board rise, owing to be equipped with various components and parts unevenness on the circuit board, with the end cover contactless, the heat of circuit board is difficult for giving off in the controller intracavity, very much can cause local high temperature easily on transmitting the circuit board through the installation pole, influences the stability and the life of circuit board, can take place the danger of burning out even when serious.
During the work of hydrogen circulating pump, the rotor shaft is high-speed rotatory, its rotational speed is up to several tens of thousands of revolutions, and present rotor shaft, it is all generally supported around it by same bearing, but in the actual work process, because the rotor shaft front end need install the impeller, consequently the atress around the rotor shaft is the complete difference, rotor shaft front end atress is big, rear end atress is little, just so can lead to the rotor shaft to appear rocking and the unstable condition easily when high-speed rotatory, the time has been of a specified duration easily with the front bearing damage, the life of front bearing has been shortened. In addition, the heat that the high-speed rotation of rotor shaft produced can transmit the front bearing, and the front bearing is heated and can produce slight deformation, and the front bearing material generally is the stainless steel, and the motor protecgulum material that supports the front bearing generally is the aluminum alloy, and deformation volume is inconsistent when being heated to these two kinds of different materials, also can accelerate the wearing and tearing of front bearing, influences the life of front bearing.
Therefore, the problem of heat dissipation of the circuit board of the hydrogen circulation pump has become an urgent technical problem to be solved in the industry.
The invention content is as follows:
the invention provides a vortex type hydrogen circulating pump for making up the defects of the prior art, solves the problem that part of the prior hydrogen-containing mixed gas leaks outwards from a gap between a rubber sheet and a copper wire of a three-phase line, solves the problems of complex wiring, reduced assembly efficiency and insufficient compactness of the prior three-phase line and a stator coil, and solves the problem that the prior circuit board is difficult to dissipate heat in a controller cavity.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a vortex type hydrogen circulating pump comprises a motor and a supercharger, wherein the motor comprises a shell, a partition plate is arranged in the shell, the baffle plate divides the shell into a motor cavity and a controller cavity, a stator and a rotor are arranged in the motor cavity, the stator comprises a stator core, a plurality of stator coils are wound in the stator core, a rotor shaft is arranged at the center of the rotor, the rear end of the rotor shaft is supported by a rear bearing arranged in the partition plate, the front end of the rotor shaft is supported by a front bearing arranged in a front cover of the motor, an end cover is arranged on one side of the controller cavity far away from the partition plate, a PCB is arranged in the controller cavity, the separator is provided with a communicating hole, the stator coil is fixedly connected with one end of a plurality of metal conductive plates, the other end of each metal conductive plate penetrates through the communicating hole to be connected with the PCB, and a sealing element is arranged at the communicating hole for sealing; the PCB board passes through hoisting structure and installs the top in the controller chamber and be used for accelerating the heat dissipation of PCB board with the end cover contact, the PCB board sets up with the baffle interval and is used for reducing motor heat transfer to the PCB board.
A plurality of metal current-conducting plates are fixed at one end of the stator core, a plurality of wire slots are formed in the outer side surface of the stator core corresponding to the metal current-conducting plates along the circumference, and outgoing wires at one ends of two stator coils which are opposite in position are respectively connected with one metal current-conducting plate by bypassing the wire slots; and the other end of the stator core is provided with an annular wiring board, and the wiring board is connected with a leading-out wire at the other end of each stator coil.
And a plurality of through grooves are formed in the wire groove along the axial direction.
The metal conducting plates comprise copper plates or aluminum plates, the number of the metal conducting plates is 2-6, and the metal conducting plates are welded with outgoing lines at one end of the stator coil; the terminal plate comprises a copper plate or an aluminum plate, and the terminal plate is welded with the lead-out wire at the other end of each stator coil.
The stator outside cladding has the casting glue, the filling has the casting glue in intercommunicating pore and the controller intracavity, be equipped with the outer hole on the lateral wall in controller chamber, the lead-out wire of PCB board passes outer hole and external connection, be equipped with a plurality of fin on the end cover.
The baffle and the shell are integrally formed, the motor front cover and the shell are connected in a split mode or the baffle and the shell are connected in a split mode, and the motor front cover and the shell are integrally formed.
Hoisting structure is including establishing the backing plate between PCB board and baffle, PCB board four corners is equipped with the through-hole respectively, the position that the through-hole of PCB board is corresponding in backing plate four corners is equipped with the screw hole respectively, the position that the through-hole of PCB board is corresponding to the end cover is equipped with the counter bore respectively, and a plurality of hoisting screw passes the counter bore of end cover, the through-hole of PCB board respectively and the screw hole threaded connection of backing plate, hoisting screw's spiral shell head is located the counter bore of end cover, hoisting screw is used for hoisting PCB board and backing plate at the top and the end cover contact in controller chamber.
The inner wall of the end cover is provided with a convex part which protrudes inwards corresponding to the plane position of the PCB, the convex part is contacted with the plane position of the PCB to accelerate the heat dissipation of the PCB, and heat dissipation glue is arranged between the convex part and the plane position of the PCB; the backing plate is made of a heat insulating material.
The rear bearing is a needle bearing or a deep groove ball bearing, the front bearing is a four-point contact ball bearing, a metal nesting sleeve is arranged between the front bearing and the front cover of the motor, the metal nesting sleeve and the front bearing are made of the same material, and one end of the metal nesting sleeve is provided with a bearing retainer ring for limiting the front bearing.
A boss positioning structure is arranged between the outer surface of the metal nest and the front cover of the motor, and the inner surface of the metal nest and the outer ring of the front bearing are fixedly installed in an interference fit manner; the front side of the front bearing is provided with a bearing gland, the bearing gland is installed on the front cover of the motor through a screw, and the bearing gland is matched with the metal nest for fixing the outer ring of the front bearing; and a gas seal is arranged in the bearing gland and is in contact fit with the rotor shaft.
By adopting the scheme, the invention has the following advantages:
(1) the coil of the stator is connected with the PCB in the controller cavity through the metal conductive plate, the original three-phase line is cancelled, partial hydrogen-containing mixed gas is prevented from leaking into the controller cavity from a gap between a rubber and a copper wire of the three-phase line, and potential safety hazards are eliminated; pouring sealant is coated on the outer side of the stator, and meanwhile, the pouring sealant is filled in the communication hole and the controller cavity, so that the motor cavity and the controller cavity are thoroughly sealed; the metal current conducting plate and the coil wiring of the stator are convenient and fast, the assembling efficiency can be improved, the axial size of the stator coil can be reduced, and the whole structure is more compact.
(2) After the end cover installation is accomplished, externally twist a plurality of hoisting screw through the screwdriver and hoist PCB board and backing plate at the top in controller chamber, make PCB board and backing plate and baffle interval set up, the direct PCB board transmission of heat of having avoided the high-speed rotatory production of motor, the backing plate adopts thermal insulation material simultaneously, play thermal-insulated effect, in addition, the planar position that the end cover inner wall corresponds the PCB board is equipped with inside convex bulge, the bulge contacts the planar position of PCB board and is favorable to the heat dissipation of PCB board more, the stability of PCB board has been improved, the life of PCB board has been prolonged, the potential safety hazard has been eliminated.
(3) The stator core is provided with a plurality of wire grooves along the circumference on the surface of the outer side, the outgoing lines of one ends of two stator coils with opposite positions are respectively wound around the wire grooves to be connected with a metal conducting plate, and meanwhile, the other ends of the stator core are connected with the outgoing lines of the other ends of the stator coils through annular wiring boards, so that the complex three-phase wiring structure of the conventional stator coils is simplified, the wiring is convenient and fast, the assembly efficiency can be improved, the outgoing lines are arranged in the wire grooves to reduce the axial size of the stator coils, the wiring is clean and tidy, and the overall structure is more compact.
(4) The rear bearing adopts a needle bearing or a deep groove ball bearing and is mainly used for bearing radial load, the front bearing adopts a four-point contact ball bearing and is mainly used for bearing axial load, the division of labor of the rear bearing and the front bearing is clear, the rear bearing and the front bearing are suitable for respective stress conditions, the operation is stable and reliable, and the service life can be prolonged; the metal nesting is added between the front bearing and the front cover of the motor, the material of the metal nesting is the same as that of the front bearing, the deformation quantity of the metal nesting is consistent with that of the front bearing when the metal nesting is heated, the abrasion of the front bearing is reduced, and the service life of the front bearing is prolonged.
Description of the drawings:
fig. 1 is a schematic cross-sectional structure of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
Fig. 4 is a schematic perspective view of the stator of the present invention.
Fig. 5 is a left side view of the structure of fig. 4.
Fig. 6 is a schematic top view of the structure of fig. 4.
Fig. 7 is a bottom view of the structure of fig. 4.
In the figure, 1, a motor, 2, a supercharger, 3, a shell, 4, a partition plate, 5, a motor cavity, 6, a controller cavity, 7, a stator, 8, a rotor, 9, a stator core, 10, a stator coil, 11, a rotor shaft, 12, a rear bearing, 13, a motor front cover, 14, a front bearing, 15, an end cover, 16, a PCB (printed circuit board), 17, a communication hole, 18, a metal conductive plate, 19, a wire slot, 20, a wiring board, 21, a through slot, 22, an external connection hole, 23, a radiating fin, 24, a backing plate, 25, a through hole, 26, a threaded hole, 27, a counter bore, 28, a hoisting screw, 29, a bulge, 30, a metal nesting, 31, a bearing retainer ring, 32, a boss positioning structure, 33, a bearing gland, 34, a gas seal, 35 and a lead-out wire.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1-7, a vortex type hydrogen circulation pump comprises a motor 1 and a supercharger 2, wherein the motor 1 comprises a housing 3, a partition plate 4 is arranged in the housing 3, the partition plate 4 divides the housing 3 into a motor cavity 5 and a controller cavity 6, a stator 7 and a rotor 8 are arranged in the motor cavity 5, the stator 7 comprises a stator core 9, a plurality of stator coils 10 are wound in the stator core 9, a rotor shaft 11 is arranged at the center of the rotor 8, the rear end of the rotor shaft 11 is supported by a rear bearing 12 arranged in the partition plate 4, the front end of the rotor shaft 11 is supported by a front bearing 14 arranged in a motor front cover 13, an end cover 15 is arranged at one side of the controller cavity 6 far from the partition plate 4, a PCB 16 is arranged in the controller cavity 6, a communication hole 17 is arranged on the partition plate 4, the stator coils 10 are fixedly connected with one end of a plurality of conductive plates 18, the other end of the metal conductive plate 18 passes through the communicating hole 17 to be connected with the PCB 16, a sealing element is arranged at the communicating hole 17 for sealing, the original three-phase line is cancelled, partial hydrogen-containing mixed gas is prevented from leaking into a controller cavity from a gap between a rubber sheet and a copper wire of the three-phase line, and potential safety hazards are eliminated; PCB board 16 passes through hoisting structure and installs the top in controller chamber 6 and the contact of end cover 15 is used for accelerating PCB board 16's heat dissipation, PCB board 16 sets up with baffle 4 interval and is used for reducing on motor 1 heat transfer to PCB board 16.
A plurality of metal conducting plates 18 are fixed at one end of the stator core 9, a plurality of wire slots 19 are formed in the outer side surface of the stator core 9 corresponding to the metal conducting plates 18 along the circumference, leading-out wires 35 at one ends of two stator coils 10 opposite in position respectively bypass the wire slots 19 to be connected with one metal conducting plate 18, the leading-out wires 35 are arranged in the wire slots 19, the axial size of the stator coils 10 can be reduced, the wiring is neat, and the overall structure is more compact; the other end of the stator core 9 is provided with an annular wiring board 20, the wiring board 20 is connected with the outgoing line 35 at the other end of each stator coil 10, the complex three-phase wiring structure of the conventional stator coil 10 is simplified, the wiring is convenient and fast, and the assembling efficiency can be improved. Specifically, in the operation, taking one metal conductive plate 18 as an example, the current on the metal conductive plate 18 flows into the first stator coil 10 through the lead-out wire 35 on one side, the lead-out wire 35 on the other side of the first stator coil 10 is connected with the fourth stator coil 10 through the terminal plate 20, the current flows into the fourth stator coil 10, and then circulates back to the metal conductive plate 18 through the lead-out wire 35 on one side of the fourth stator coil 10, so as to form the circulation of the circuit. The invention does not change the wiring principle of the stator coil in the existing motor, firstly, a plurality of wire slots 19 are arranged on the outer side surface of the stator core 9 along the circumference, so that the outgoing line 35 at one end of the stator coil 10 can be conveniently wired, secondly, the annular wiring board 20 is additionally arranged at the other end of the stator core 9, and the outgoing line 35 at the other end of each stator coil 10 is connected through the wiring board 20, so that the former situation that the outgoing line 35 is accumulated at one end of the stator coil is avoided, the complex three-phase wiring structure of the former stator coil is simplified, the wiring is convenient and fast, the assembly efficiency can be improved, the axial size of the stator coil is reduced, the wiring is neat, and the overall structure is more compact.
A plurality of through grooves 21 are axially formed in the wire casing 19, the through grooves 21 play a role in reducing weight on one hand, and on the other hand, glue can more uniformly penetrate into the wire casing 19 when the glue is filled outside the stator core 9.
The metal conducting plate 18 comprises a copper plate or an aluminum plate, and other conductive alloy plates in the field are all within the protection scope of the invention, the metal conducting plate 18 is arranged in a bending mode and has certain flexibility, and when the PCB 16 is hoisted upwards, the metal conducting plate 18 has certain extending performance and cannot influence the normal movement of the PCB 16. The number of the metal conductive plates is 2-6, which corresponds to the number of phases of the motor. The metal conducting plate 18 is welded with a leading-out wire at one end of the stator coil 10; the terminal plate 20 includes a copper plate or an aluminum plate, and the terminal plate 20 is welded to the lead-out wire at the other end of each stator coil 10.
The cladding has the casting glue in the 7 outside of stator, the filling has the casting glue in intercommunicating pore 17 and the controller chamber 6, has realized the thorough sealing between motor chamber 5 and the controller chamber 6, be equipped with outer hole 22 on the lateral wall of controller chamber 6, the lead-out wire of PCB board 16 passes outer hole 22 and external connection, only reserves very little outer hole 22 and connects external power source with PCB board 16's lead-out wire, and the leakproofness is better, be equipped with a plurality of fin 23 on the end cover 15 for dispel the heat to controller chamber 6.
The partition plate 4 and the shell 3 are integrally formed, the motor front cover 13 and the shell 3 are connected in a split mode, or the partition plate 4 and the shell 3 are connected in a split mode, and the motor front cover 13 and the shell 3 are integrally formed.
Hoisting structure is including establishing backing plate 24 between PCB board 16 and baffle 4, PCB board 16 four corners is equipped with through-hole 25 respectively, the position that the through-hole 25 of PCB board 16 is corresponded in backing plate 24 four corners is equipped with screw hole 26 respectively, the position that end cover 15 corresponds PCB board 16's through-hole 25 is equipped with counter bore 27 respectively, and a plurality of lifting screw 28 passes counter bore 27 of end cover, PCB board's through-hole 25 respectively and the screw hole 26 threaded connection of backing plate, lifting screw 28's spiral shell head is located the counter bore 27 of end cover, lifting screw 28 is used for making PCB board 16 and end cover 15 contact with PCB board 24 hoist and mount at the top of controller chamber 6. During installation, firstly, the PCB 16 and the backing plate 24 are placed on the partition plate 4 in the controller cavity 6, the metal conductive plate 18 is fixedly connected with the PCB 16 in a welding mode, meanwhile, the through hole 25 of the PCB 16 is aligned with the threaded hole 26 of the backing plate 24, then the end cover 15 is installed, the counter bore 27 of the end cover 15 is aligned with the through hole 25 of the PCB 16, then a plurality of hoisting screws 28 are screwed externally through a screwdriver, the hoisting screws 28 respectively penetrate through the counter bore 27 of the end cover and the through hole 25 of the PCB to be in threaded connection with the threaded hole 26 of the backing plate, the screw heads of the hoisting screws 28 are located in the counter bore 27 of the end cover, the PCB 16 and the backing plate 24 are hoisted at the top of the controller cavity 6 through the hoisting screws 28, the PCB 16 and the backing plate 24 are arranged at intervals with the partition plate 4, and heat generated by high-speed rotation of the motor 1 is prevented from being directly transferred to the PCB 16.
The inner wall of the end cover 15 is provided with a convex part 29 which protrudes inwards corresponding to the plane position of the PCB 16, the convex part 29 is in contact with the plane position of the PCB 16 to increase the contact area for accelerating the heat dissipation of the PCB 16, and heat dissipation glue is arranged between the convex part 29 and the plane position of the PCB 16 to accelerate the heat dissipation speed of the PCB; the backing plate 24 is made of heat insulating materials, and the backing plate 24 plays a role in driving the PCB 16 to move upwards and lift and is arranged between the PCB 16 and the partition plate 4 to play a role in heat insulation.
The rear bearing 12 is a needle bearing or a deep groove ball bearing and is mainly used for bearing radial load, the front bearing 14 is a four-point contact ball bearing and is mainly used for bearing axial load, the rear bearing 12 and the front bearing 14 are definite in labor division, suitable for respective stress conditions, and stable and reliable in working; a metal nesting sleeve 30 is arranged between the front bearing 14 and the motor front cover 13, the metal nesting sleeve 30 and the front bearing 14 are made of the same material, deformation quantities of the metal nesting sleeve 30 and the front bearing 14 are consistent when the metal nesting sleeve is heated, abrasion of the front bearing 14 is reduced, the service life of the front bearing 14 is prolonged, and a bearing retainer ring 31 for limiting the front bearing 14 is arranged at one end of the metal nesting sleeve 30.
The metal nesting 30 and the motor front cover 13 are cast and molded, a boss positioning structure 32 is arranged between the outer surface of the metal nesting 30 and the motor front cover 13, the boss positioning structure 32 comprises a protrusion and a groove which are arranged on the outer surface of the metal nesting 30, and a groove and a protrusion which are arranged on the motor front cover 13 and matched with each other, the effect of preventing the metal nesting 30 from slipping is achieved, the connection strength is increased, and the inner surface of the metal nesting 30 and the outer ring of the front bearing 14 are installed and fixed in an interference fit manner; a bearing gland 33 is arranged on the front side of the front bearing 14, the bearing gland 33 is installed on the motor front cover 13 through screws, and the bearing gland 33 is matched with the metal nest 30 to fix the outer ring of the front bearing 14; and a gas seal 34 is installed in the bearing gland 33, and the gas seal 34 is in contact fit with the rotor shaft 11 to prevent the hydrogen-containing mixed gas in the supercharger from leaking into a motor cavity.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (10)
1. The utility model provides a swirl type hydrogen circulating pump, includes motor and booster, the motor includes the casing, be equipped with the baffle in the casing, motor chamber and controller chamber are separated into with the casing to the baffle, install stator and rotor in the motor chamber, the stator includes stator core, and the winding has a plurality of stator coil in stator core, the center of rotor is equipped with the rotor shaft, and the rear end of rotor shaft supports through the rear bearing of installing in the baffle, and the front end of rotor shaft supports through the front bearing of installing in the motor protecgulum, the controller chamber is kept away from one side of baffle and is installed the end cover, be equipped with the PCB board in the controller chamber, its characterized in that: the separator is provided with a communicating hole, the stator coil is fixedly connected with one end of a plurality of metal conductive plates, the other end of each metal conductive plate penetrates through the communicating hole to be connected with the PCB, and a sealing element is arranged at the communicating hole for sealing; the PCB board is installed at the top in controller chamber through hoisting structure and is used for accelerating the heat dissipation of PCB board with the end cover contact, PCB board and baffle interval set up and are used for reducing motor heat transfer to PCB board.
2. A vortex type hydrogen circulation pump according to claim 1, characterized in that: a plurality of metal current-conducting plates are fixed at one end of the stator core, a plurality of wire slots are formed in the outer side surface of the stator core corresponding to the metal current-conducting plates along the circumference, and outgoing wires at one ends of two stator coils which are opposite in position are respectively connected with one metal current-conducting plate by bypassing the wire slots; and the other end of the stator core is provided with an annular wiring board, and the wiring board is connected with a leading-out wire at the other end of each stator coil.
3. A vortex type hydrogen circulation pump according to claim 2, characterized in that: and a plurality of through grooves are formed in the wire groove along the axial direction.
4. A vortex type hydrogen circulation pump according to claim 2, characterized in that: the metal conducting plates comprise copper plates or aluminum plates, the number of the metal conducting plates is 2-6, and the metal conducting plates are welded with outgoing lines at one end of the stator coil; the terminal plate comprises a copper plate or an aluminum plate, and the terminal plate is welded with the lead-out wire at the other end of each stator coil.
5. A vortex type hydrogen circulation pump according to claim 1, characterized in that: the stator outside cladding has the casting glue, the filling has the casting glue in intercommunicating pore and the controller intracavity, be equipped with the outer hole on the lateral wall in controller chamber, the lead-out wire of PCB board passes outer hole and external connection, be equipped with a plurality of fin on the end cover.
6. A vortex type hydrogen circulation pump according to claim 1, characterized in that: the baffle and the shell are integrally formed, the motor front cover and the shell are connected in a split mode or the baffle and the shell are connected in a split mode, and the motor front cover and the shell are integrally formed.
7. A vortex type hydrogen circulation pump according to claim 1, characterized in that: hoisting structure is including establishing the backing plate between PCB board and baffle, PCB board four corners is equipped with the through-hole respectively, the position that the through-hole of PCB board is corresponding in backing plate four corners is equipped with the screw hole respectively, the position that the through-hole of PCB board is corresponding to the end cover is equipped with the counter bore respectively, and a plurality of hoisting screw passes the counter bore of end cover, the through-hole of PCB board respectively and the screw hole threaded connection of backing plate, hoisting screw's spiral shell head is located the counter bore of end cover, hoisting screw is used for hoisting PCB board and backing plate at the top and the end cover contact in controller chamber.
8. A vortex type hydrogen circulation pump according to claim 7, characterized in that: the inner wall of the end cover is provided with a convex part which protrudes inwards corresponding to the plane position of the PCB, the convex part is contacted with the plane position of the PCB to accelerate the heat dissipation of the PCB, and heat dissipation glue is arranged between the convex part and the plane position of the PCB; the backing plate is made of a heat insulating material.
9. A vortex type hydrogen circulation pump according to claim 1, characterized in that: the rear bearing is a needle bearing or a deep groove ball bearing, the front bearing is a four-point contact ball bearing, a metal nesting sleeve is arranged between the front bearing and the front cover of the motor, the metal nesting sleeve and the front bearing are made of the same material, and one end of the metal nesting sleeve is provided with a bearing retainer ring for limiting the front bearing.
10. A vortex type hydrogen circulation pump according to claim 9, characterized in that: a boss positioning structure is arranged between the outer surface of the metal nest and the front cover of the motor, and the inner surface of the metal nest and the outer ring of the front bearing are fixedly installed in an interference fit manner; the front side of the front bearing is provided with a bearing gland, the bearing gland is installed on the front cover of the motor through a screw, and the bearing gland is matched with the metal nest for fixing the outer ring of the front bearing; and a gas seal is arranged in the bearing gland and is in contact fit with the rotor shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210111621.1A CN114499015B (en) | 2022-01-29 | 2022-01-29 | Vortex type hydrogen circulating pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210111621.1A CN114499015B (en) | 2022-01-29 | 2022-01-29 | Vortex type hydrogen circulating pump |
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| CN114499015A true CN114499015A (en) | 2022-05-13 |
| CN114499015B CN114499015B (en) | 2022-10-28 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114499015B (en) | 2022-10-28 |
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Denomination of invention: A vortex type hydrogen circulation pump Granted publication date: 20221028 Pledgee: Qingdao Rural Commercial Bank Co.,Ltd. Yantai Branch Pledgor: YANTAI DONGDE INDUSTRIAL Co.,Ltd. Registration number: Y2024980007136 |