CN211950888U

CN211950888U - Electromagnetic driving pump

Info

Publication number: CN211950888U
Application number: CN202020168368.XU
Authority: CN
Inventors: 严际峰
Original assignee: Shanghai Jonsn Fluid Equipment Co ltd
Current assignee: Shanghai Jonsn Fluid Equipment Co ltd
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2020-11-17
Anticipated expiration: 2030-02-13

Abstract

The utility model discloses an electromagnetic drive pump. The utility model discloses an electromagnetic drive pump includes the pump body and with pump body connection's drive division. The impeller rotor is arranged in the pump body, and the medium inlet and the medium outlet are arranged on the shell of the pump body. The utility model discloses a one end that the pump body is being close to the drive division is provided with flange joint reason, is provided with a plurality of flange holes along circumference on flange joint reason, and the pump body is through the bolt fixed connection who passes the flange hole with the drive division. The utility model discloses an electromagnetic force driven pump is still including setting up the cage in the middle of pump permanent magnet and coil winding, the mutual joint of inward flange at cage and flange joint edge. The utility model discloses an electromagnetic force drive pump utilizes the pump permanent magnet that sets up originally in the pump as the rotor of motor, therefore need not to set up the permanent magnet rotor for the motor alone again, has reduced the use of permanent magnet in the pump from this, makes the utility model discloses an electromagnetic force drive pump simple structure, small, and practiced thrift the cost.

Description

Electromagnetic driving pump

Technical Field

The utility model relates to a magnetic drive pump technical field, concretely relates to electromagnetic drive pump.

Background

The electromagnetic driving pump is applied to a plurality of occasions due to the characteristic of small volume, in particular to small-sized space vehicles and some experimental equipment with strict requirements on volume.

The existing magnetic pump mainly comprises a pump head, a magnetic driving device and other parts. The magnetic driving device comprises an inner magnetic rotor and an outer magnetic rotor which are mutually magnetically coupled and a motor for driving the outer magnetic rotor to rotate, wherein an impeller rotor connected with the inner magnetic rotor is arranged in the pump head, and the inner magnetic rotor is driven by the outer magnetic rotor to rotate, so that the impeller rotor is driven to rotate to realize the transmission of media. Therefore, the existing magnetic pump has larger volume and weight; meanwhile, the motor is internally provided with the permanent magnet, and the magnetic pump is internally provided with the permanent magnet, so that the permanent magnet is repeatedly used in the magnetic pump, the permanent magnet is wasted, and the volume and the cost of the magnetic pump are increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages, the present invention provides an electromagnetic driving pump, which can effectively reduce the size of the pump, and can make the permanent magnet in the pump fully used, thereby making the overall mass and size of the pump smaller.

In order to achieve the above object, the utility model provides an electromagnetic force drive pump, it includes the pump body be provided with impeller rotor in the pump body, still include with pump body connection's drive division, drive division includes the pump permanent magnet and centers on the coil winding that the pump permanent magnet set up when the coil winding circular telegram the pump permanent magnet is rotatory, still include with the pump drive shaft that impeller rotor connects. The utility model discloses an electromagnetic force drive pump utilizes the pump permanent magnet that sets up originally in the pump as the rotor of motor, therefore need not to set up the permanent magnet rotor for the motor alone again, has reduced the use of permanent magnet in the pump from this, makes the utility model discloses an electromagnetic force drive pump simple structure, small, and practiced thrift the cost.

Further, still including being used for fixing the roating seat of pump permanent magnet, the pump permanent magnet set up in the surface of roating seat, the pump permanent magnet with the roating seat is coaxial to be set up, the pump drive shaft with roating seat fixed connection.

Further, the drive division still including keep away from the base of pump body one end and with the drive division casing that the outward flange of base is connected, the drive division casing with the base is coaxial to be set up be provided with a plurality of stator dogtooth on the base, the stator dogtooth orientation the axial central line of drive division casing stretches out, the coil winding is including a plurality of coils that are connected, and the coil is around locating on the stator dogtooth. Therefore, the electromagnetic force is formed on the pump permanent magnet in the pump body after the coil wound on the convex teeth of the stator is electrified, the pump permanent magnet rotates at a high speed under the action of the electromagnetic force, the pump driving shaft rotates to further drive the impeller rotor to rotate, the vacuum suction force is formed, and therefore the medium is conveyed.

Furthermore, one end of the driving part shell, which is close to the base, is also provided with a lead wire leading-out hole, and a lead wire of the coil winding can extend out of the lead wire leading-out hole.

Furthermore, the pump body is provided with flange joint reason near the one end of drive division flange joint reason is last to be provided with a plurality of flange holes along circumference flange joint reason on the base with flange joint reason's flange hole corresponds be provided with a plurality of internal thread holes.

Furthermore, the pump permanent magnet and the coil winding are arranged in a clamping mode, and the inner edge of the flange connecting edge is clamped with the isolation cover. Therefore, the liquid in the pump can be prevented from flowing out to pollute the coil winding and influence the normal operation of the pump.

Furthermore, the one end that the cage is being close to flange joint reason is provided with the annular engaging lug that extends to flange joint reason's inward flange, the middle part of engaging lug be provided with flange joint reason's inward flange assorted joint groove.

Furthermore, a sealing ring is arranged in the middle of the inner edge of the connecting edge of the clamping groove and the flange.

Thus, it is possible to provide

Drawings

Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a preferred embodiment of the present invention;

fig. 3 is a schematic view of a stator tooth arrangement according to a preferred embodiment of the present invention;

fig. 4 is a schematic perspective view of a driving portion according to a preferred embodiment of the present invention;

fig. 5 is a partially enlarged schematic view of a portion a in fig. 2.

In the figure:

1-pump body, 11-impeller rotor, 12-flange connecting edge, 13-pump driving shaft, 2-driving part, 21-base, 22-driving part shell, 23-stator convex tooth, 24-coil winding, 25-pump permanent magnet, 26-lead leading-out hole, 27-rotating seat, 28-isolation cover, 281-connecting lug and 29-sealing ring.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 and 2, the electromagnetic drive pump of the present invention includes a pump body 1 and a drive unit 2 connected to the pump body 1. An impeller rotor 11 is provided in the pump body 1, and a medium inlet and a medium outlet are provided in a housing of the pump body 1. The utility model discloses a pump body 1 is provided with flange joint reason 12 in the one end that is close to drive division 2, is provided with a plurality of flange holes along circumference on flange joint reason 12, and the bolt fixed connection through passing the flange hole of pump body 1 and drive division 2.

Referring to fig. 2 again, the driving portion 2 of the present invention includes a base 21 far away from one end of the pump body 1 and a driving portion housing 22 connected to the outer edge of the base 21, the driving portion housing 22 extends toward one end of the pump body 1, and the driving portion housing 22 and the axial center line of the base 21 are on the same straight line. The base 21 and the drive portion housing 22 may be an integral or separate piece. The edge of the drive section housing 22 near one end of the pump body 1 is provided with a plurality of internal threaded holes corresponding to the flange holes of the flange connecting edge 12, thereby realizing the connection between the pump body 1 and the drive section 2.

Referring to fig. 3, a plurality of stator teeth 23 are provided on the base 21, the stator teeth 23 extend toward the axial center line of the driving portion casing 22, and a plurality of groups of coils connected to each other are respectively wound on each stator tooth 23 to form a coil winding 24, the driving portion 2 of the present invention further includes a pump permanent magnet 25 disposed in the middle of the coil winding 24, and when the coil winding 24 is energized, the pump permanent magnet 25 rotates. The wiring mode of the coil winding 24 of this embodiment adopts a star-shaped wiring method, and correspondingly, the number of the stator convex teeth 23 is set to nine, the number of the copper wires for winding the stator convex teeth 23 is three, each copper wire is wound around three stator convex teeth 23 respectively, and the phase difference of the stator convex teeth wound by the same copper wire is 120 degrees. A lead wire drawing hole 26 is further provided at one end of the driving part case 22 close to the base 21, and a copper lead wire wound around the stator teeth 23 can be drawn out from the lead wire drawing hole 26. Therefore, the pump permanent magnet 25 located in the middle of the coil winding 24 can be rotated by the magnetic coupling force by the on-off control of the coil winding 24.

Referring to fig. 4, and combine fig. 2 again, the utility model discloses an electromagnetic force drive pump still includes the pump drive axle 13 of being connected with impeller rotor 11, the utility model discloses an electromagnetic force drive pump is still including the roating seat 27 that is used for fixed pump permanent magnet 25, and pump permanent magnet 25 is hollow tubulose and sets up in the surface of roating seat 27, pump permanent magnet 25 and the coaxial setting of roating seat 27, pump drive axle 13 and roating seat 27 fixed connection. The utility model discloses an electromagnetic force drive pump also can be with pump drive shaft 13 direct and pump permanent magnet 25 fixed connection, therefore, pump permanent magnet 25 takes place rotatoryly under coil winding 24's effect to it is rotatory to drive impeller rotor 11 in the pump body 1, realizes the transport to the medium from this.

Referring again to fig. 2, the utility model discloses an electromagnetic force driven pump is still including setting up the cage 28 in the middle of pump permanent magnet 25 and coil winding 24, the utility model discloses a cage 28 is the cylindricality cup, and pump permanent magnet 25 is located cage 28, and the rotatory axis of pump permanent magnet 25 is coaxial with the axis of cage 28, and cage 28 is provided with the annular engaging lug 281 that extends to the inward flange of flange joint reason 12 at the edge that is close to the pump body 1, and the middle part of engaging lug 281 is provided with the inward flange assorted joint groove with flange joint reason 12. The utility model discloses an electromagnetic force drive pump's cage 28 is linked together with the inside medium of the pump body 1, therefore, cage 28 can prevent to outwards ooze when carrying out the medium and carry, can not lead to the fact the influence to coil winding 24. As a preferred embodiment of the present invention, referring to fig. 5, a sealing ring 29 is further disposed between the clamping groove and the flange connecting edge 12, and the sealing ring 29 is an elastic O-ring, so that the leakage of the medium from the flange connecting edge 12 can be effectively prevented.

The utility model discloses an electromagnetic force drive pump utilizes permanent-magnet machine's coil winding structure as stator structure to utilize the interior magnet steel of pump as electric motor rotor, through logical, the outage to coil winding and form the magnetic attraction to the pump permanent magnet in proper order in the circumference direction of pump permanent magnet, therefore make the pump permanent magnet rotatory along the circumference direction, the medium that adopts electromagnetic force drive pump to deliver is steady, no pulse, the continuity is high, the characteristics of no leakage, the utility model discloses an electromagnetic force drive pump simple structure, small owing to saved traditional electric motor rotor, practices thrift the cost.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides an electromagnetic force driven pump, includes the pump body be provided with impeller rotor in the pump body, its characterized in that still include with the drive division that the pump body is connected, drive division includes the pump permanent magnet and centers on the coil winding that the pump permanent magnet set up when the coil winding circular telegram the pump permanent magnet is rotatory, still include with the pump drive shaft that impeller rotor connects.

2. The electromagnetic force driven pump according to claim 1, further comprising a rotating base for fixing the pump permanent magnet, wherein the pump permanent magnet is disposed on an outer surface of the rotating base, the pump permanent magnet is disposed coaxially with the rotating base, and the pump driving shaft is fixedly connected to the rotating base.

3. The pump of claim 1, wherein the driving portion further comprises a base far away from one end of the pump body and a driving portion housing connected to an outer edge of the base, the driving portion housing is coaxially disposed with the base, a plurality of stator teeth are disposed on the base, the stator teeth extend toward an axial center line of the driving portion housing, the coil winding comprises a plurality of connected coils, and the coils are wound around the stator teeth.

4. The electromagnetic force driven pump according to claim 3, wherein a lead wire drawing hole is further provided at an end of the drive section casing close to the base, and a lead wire of the coil winding can be drawn out from the lead wire drawing hole.

5. The electromagnetic force driven pump according to claim 3, wherein the pump body is provided with a flange connecting edge at an end close to the driving portion, a plurality of flange holes are provided in the flange connecting edge in a circumferential direction, and a plurality of internal thread holes are provided in the base corresponding to the flange holes of the flange connecting edge.

6. The pump of claim 5 further comprising a cage disposed intermediate the pump permanent magnets and the coil windings, the cage being snap-fit to an inner edge of the flange.

7. The pump of claim 6, wherein the shield has a ring-shaped engaging lug extending toward the inner edge of the flange connecting rim at an end close to the flange connecting rim, and the engaging lug has a locking groove matching with the inner edge of the flange connecting rim at a middle portion thereof.

8. The pump of claim 7, wherein a sealing ring is further disposed intermediate the snap groove and the inner edge of the flange connecting rim.