A kind of centrifugal water pump
This patent is:
Entitled: a kind of centrifugal water pump
Application No.: 201610082423.1
Filing date: 2016.02.05
The divisional application of patent application.
Technical field
The invention belongs to water pump field, be specifically related to a kind of centrifugal water pump that can extract lower water aloft.
Background technology
Existing small-sized centrifugal water pump is typically mounted at below the water surface, as immersible pump by water from lower pump to eminence, but
The defect of this kind of water pump clearly is that the supply lines of water pump needs to reach in water, is difficult to ensure that insulation effect after a long time use
Really, time serious, even causing electric leakage electric shock dangerous, if improving insulating properties to need to use the higher supply lines of price, then certainly will
The overall price making water pump improves.Small-sized centrifugal water pump is generally used for the sexual valence on the small household appliances such as foot bath, hot water bottle, to water pump
More of a relatively high than requiring.
Summary of the invention
The technical problem to be solved is: the deficiency existed for prior art, it is provided that a kind of compact conformation, if
Count ingenious, it is possible to it is arranged on eminence and is used for smoking water toward eminence from lower, be provided simultaneously with the centrifugal of superior isolation performance
Water pump.
For realizing the purpose of the present invention, it is achieved by the following technical solutions: a kind of centrifugal water pump, includes pump case,
Described pump case outer wall is installed with an external stator winding and an electromagnet coil;Two it are installed with in described pump case
Rotor field spider, two rotor field spiders are rotatably connected to a rotor assembly;Described rotor assembly includes and turns with rotor field spider
The rotating shaft being dynamically connected, the inner rotor magnets being fixedly connected in rotating shaft and cylinder iron core, and it is fixedly connected on rotating shaft near interior
The rotating disk of end, rotor magnet one end;Described inner rotor magnets is corresponding with external stator winding position, and inner rotor magnets is fixed with outer
Sub-winding collectively forms a motor;Described cylinder iron core is corresponding with the position of electromagnet coil, cylinder iron core and electric magnet
Coil collectively forms an electric magnet;Described inner rotor magnets is between two described rotor field spiders;Fix on described rotating disk
2-6 the drive magnet being distributed with circumference array is installed;
Described pump case forms a piston pump case portion near one end of electromagnet coil, is slidably installed in described piston pump case portion
Having a piston, piston is fixedly connected with a permanent magnet near one end of cylinder iron core, the magnetic direction within permanent magnet with
Piston is axially in parallel;Being sealedly connected with a piston pump cover in described piston pump case portion, piston pump lid connects a water inlet
Check valve and one go out water one-way valve;
The described pump case other end connects a centrifugal pump, and described centrifugal pump includes fixes the centrifugal pump shell being connected with pump case,
Forming dividing plate in centrifugal pump shell, dividing plate intermediary form has newel, and newel is rotatably connected to a centrifugal pump leaf;Described
Centrifugal pump leaf includes pump phyllopodium plate, one-body molded individual with circumference array away from the 3-6 on dividing plate one side end face at pump phyllopodium plate
The blade of distribution, and it is fixedly mounted on pump phyllopodium plate the driven magnet with drive magnet equal number;Described pump phyllopodium plate
Intermediary form has and coordinates the centre bore being rotationally connected with newel, is not connected with between each described blade;Described centrifugal pump shell
Sidewall form water out adapter, described centrifugal pump shell is sealedly connected with a centrifugal pump cover, institute away from one end of drive magnet
The centre stating centrifugal pump cover is connected with a water supply connector, and described water supply connector is connected with going out water one-way valve by connecting tube
Connect.
Preferably: described drive magnet and driven magnet are permanent magnet;Described inner rotor magnets is permanent magnet.
Preferably: described rotating disk forms on the end face away from inner rotor magnets side and accommodates the recessed of described drive magnet
Mouthful, it is adhesively fixed by glue between described drive magnet and recess inwall;The described pump phyllopodium plate end face near dividing plate side
On form the shrinkage pool accommodating described driven magnet, between driven magnet with shrinkage pool inwall by glue bonding.
Compared with prior art, the invention has the beneficial effects as follows: one end of this centrifugal water pump is piston pump, the other end is
Centrifugal pump, first piston pump works when water pump of the present invention just starts, by water in connection tube pump to centrifugal pump, then centrifugal pump
Work on, so make centrifugal pump also be able to start smoothly work when higher than water surface elevation.Further, the piston of piston pump
Upper connection permanent magnet, the electric magnet that cylinder iron core and electromagnet coil collectively form drives permanent magnet by the conversion of magnetic direction
Move back and forth, thus drive reciprocating motion of the pistons.After centrifugal pump starts, cylinder iron core together rotates with inner rotor magnets, circle
Column iron core plays the effect of balancing weight, and the motor running making inner rotor magnets and external stator winding constitute is the most steady;It addition, it is electric
Magnet coil gets final product power-off after centrifugal pump starts, and permanent magnet attracts under magnetic field force effect mutually with cylinder iron core, makes piston remote
From water feeding one-way valve and go out water one-way valve so that the water entered from water feeding one-way valve can successfully sequentially pass through piston pump, go out
Water one-way valve, connecting tube and water supply connector.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the decomposition texture schematic diagram of the present invention.
Fig. 3 is the structural representation of rotor assembly.
Fig. 4 is the decomposition texture schematic diagram of centrifugal pump part.
81, pump case;811, external stator winding;812, electromagnet coil;813, piston pump case portion;814, rotor field spider;82、
Piston pump cover;821, water feeding one-way valve;822, water one-way valve is gone out;83, connecting tube;84, centrifugal pump;840, centrifugal pump shell;8401、
Dividing plate;8402, newel;841, water supply connector;842, water out adapter;843, centrifugal pump cover;844, centrifugal pump leaf;8441, pump
Phyllopodium plate;8442, blade;8443, driven magnet;8444, centre bore;85, rotor assembly;851, inner rotor magnets;852, circle
Column iron core;853, rotating disk;854, drive magnet;855, rotating shaft;86, piston;861, permanent magnet.
Detailed description of the invention
Embodiment 1
According to shown in Fig. 1 to Fig. 4, a kind of centrifugal water pump described in the present embodiment, include pump case 81, described pump case outer wall is fixed
One external stator winding 811 and an electromagnet coil 812 are installed;Two rotor field spiders it are installed with in described pump case
814, two rotor field spiders are rotatably connected to a rotor assembly 85;Described rotor assembly includes and rotates even with rotor field spider
The rotating shaft 855 connect, the inner rotor magnets 851 being fixedly connected in rotating shaft and cylinder iron core 852, and be fixedly connected on rotating shaft and lean on
The rotating disk 853 of nearly end, inner rotor magnets one end;Described inner rotor magnets is corresponding with external stator winding position, inner rotor magnets
A motor is collectively formed with external stator winding;Described cylinder iron core is corresponding with the position of electromagnet coil, cylinder iron core with
Electromagnet coil collectively forms an electric magnet;Described inner rotor magnets is between two described rotor field spiders;Described rotating disk
On be installed with 2-6 the drive magnet 854 with circumference array distribution;
Described pump case forms a piston pump case portion 813 near one end of electromagnet coil, slides in described piston pump case portion
Being provided with a piston 86, piston is fixedly connected with a permanent magnet 861, the magnetic within permanent magnet near one end of cylinder iron core
Field direction is axially in parallel with piston;It is sealedly connected with a piston pump cover 82 in described piston pump case portion, piston pump lid connects
Have a water feeding one-way valve 821 and one go out water one-way valve 822;Described piston moves to during near cylinder iron core, permanent magnet
And leave the gap of 0.5-1mm between cylinder iron core.
The described pump case other end connects a centrifugal pump 84, and described centrifugal pump includes and fixes be connected centrifugal with pump case
Pump case 840, forms dividing plate 8401 in centrifugal pump shell, dividing plate intermediary form has newel 8402, newel is rotatably connected to
One centrifugal pump leaf 844;Described centrifugal pump leaf includes pump phyllopodium plate 8441, one-body molded at pump phyllopodium plate away from dividing plate side
3-6 on end face the blade 8442 being distributed with circumference array, and it is fixedly mounted on pump phyllopodium plate identical with drive magnet
The driven magnet 8443 of quantity;Described pump phyllopodium plate intermediary form has and coordinates the centre bore 8444 being rotationally connected with newel, respectively
It is not connected with between individual described blade;The sidewall of described centrifugal pump shell forms water out adapter 842, and described centrifugal pump shell is away from driving
One end of moving magnet is sealedly connected with a centrifugal pump cover, and the centre of described centrifugal pump cover is connected with a water supply connector
841, described water supply connector is connected with going out water one-way valve by connecting tube 83.
Described drive magnet and driven magnet are permanent magnet;Described inner rotor magnets is permanent magnet.Described driving magnetic
Ferrum is identical with the magnetic direction of driven magnet, thus attracts each other, when drive magnet rotates with rotating disk, and driven magnet and centrifugal
Pump leaf also concomitant rotation.
Described rotating disk forms the recess accommodating described drive magnet on the end face away from inner rotor magnets side, described in drive
It is adhesively fixed by glue between moving magnet and recess inwall;Described pump phyllopodium plate forms appearance on the end face of dividing plate side
Receive the shrinkage pool of described driven magnet, bonding by glue between driven magnet with shrinkage pool inwall.
The operation principle of this centrifugal water pump is such that described electromagnet coil and external stator winding is electric with control respectively
Road plate electrical connection, when centrifugal water pump is started working, control circuit plate is to the alternation electricity that electromagnet coil incoming frequency is 2-5Hz
The electric magnet that stream, electromagnet coil and cylinder iron core are constituted produces the magnetic field of alternation, circulates between such electric magnet and permanent magnet
Real estate magnetisation field gravitation and repulsion, so that piston moves reciprocatingly.Draw water after full centrifugal pump at piston pump at the latest, control
The external stator winding of circuit board processed is powered and is made inner rotor magnets rotate, thus drives centrifugal pump leaf to rotate.
In the present invention, by increase a piston pump connected with centrifugal pump, make centrifugal pump when higher than water surface elevation also
Work can be started smoothly.Further, drive the cylinder iron core of electric magnet of piston pump work also simultaneously as internal rotor magnetic
The counterweight of ferrum, makes operating steadily of centrifugal pump part, after tested, compares the situation that inner rotor magnets is separated with cylinder iron core,
Efficiency improves more than 5%.
Embodiment 2
The present embodiment is with the difference of embodiment 1, and described electromagnet coil works on after centrifugal pump is started working, defeated
Go out the 30%-60% that power setting is centrifugal pump.So water from water out adapter injection is the state of pressure oscillation.This kind of centrifugal water
Pump is applicable on the physical therapy electrical equipment of foot-bathing bucket one class, and the water of pressure oscillation can play the effect of massage.