CN114607588A

CN114607588A - Planet distributed peristaltic pump and motor

Info

Publication number: CN114607588A
Application number: CN202210246095.XA
Authority: CN
Inventors: 刘福强; 崔俊文; 陈彦
Original assignee: Shanghai Shilai Information Technology Co ltd
Current assignee: Shanghai Banxing Technology Co.,Ltd.
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-06-10

Abstract

The invention relates to the technical field of motor design, and provides a planetary distributed peristaltic pump and a motor. The planetary distributed peristaltic pump comprises a base, a roller assembly, a hose and a gear assembly. The base is provided with a plurality of annular rails which are circumferentially arranged, and the annular rails are provided with rotating shafts; the roller assembly comprises a roller; the gear assembly is accommodated in the accommodating cavity; the gear assembly comprises a driving gear, a driven gear and a driving shaft; the driving shaft is assembled in the center of the base and is in driving connection with the driving gear; the driven gear is connected with the rotating shaft, the driving gear is meshed with the driven gears, and the driven gears drive the roller to rotate around the rotating shaft; the hose is equipped with many, is equipped with at least one hose in each circular orbit, and the hose pastes and leans on in circular orbit's lateral wall, and the gyro wheel can extrude the hose intermittently, and the both ends of each hose are stretched out respectively and are held the chamber. The planet distributed peristaltic pump integrates a plurality of sub peristaltic pumps, and can provide a plurality of mutually independent liquid conveying pipelines with uniform flow.

Description

Planet distributed peristaltic pump and motor

Technical Field

The invention belongs to the technical field of motor design, and particularly relates to a planetary distributed peristaltic pump and a motor.

Background

The peristaltic pump is a novel fluid delivery pump following a rotor pump, a centrifugal pump, a diaphragm pump and the like, and is widely popularized and applied in various industries such as medical treatment, medicine, food, beverage, chemical industry, smelting and the like. Peristaltic pumps achieve the transfer of liquid mainly by the rotor alternately squeezing and releasing the elastic delivery hose. The liquid flow is uneven due to uneven internal pressure when a single pipeline is conveyed to be branched to a plurality of pipelines, and adverse results are further caused.

Disclosure of Invention

The invention aims to provide a planetary distributed peristaltic pump and a motor, and aims to solve the technical problem that the peristaltic pump in the prior art is uneven in flow when conveying liquid.

In order to achieve the purpose, the invention adopts the technical scheme that: the planetary distributed peristaltic pump comprises a base, a roller assembly, a hose and a gear assembly;

the base is provided with an accommodating cavity, the bottom wall of the accommodating cavity is provided with a plurality of circumferentially arranged annular rails, and a rotating shaft is arranged at the circle center of each annular rail;

the roller assembly comprises a roller, and the roller is embedded into the annular track;

the gear assembly is accommodated in the accommodating cavity; the gear assembly comprises a driving gear, a driven gear and a driving shaft; the driving shaft is assembled in the center of the base and is in driving connection with the driving gear; the driven gear is connected with the rotating shaft, the driving gear is meshed with a plurality of driven gears, and the driven gears drive the idler wheels to rotate around the rotating shaft;

the hose is equipped with many, is equipped with at least one in each circular orbit the hose, the hose pastes and leans on circular orbit's lateral wall, the gyro wheel can extrude intermittently the hose, each the both ends of hose stretch out respectively hold the chamber.

In an embodiment of the invention, a plurality of the circular tracks are uniformly distributed on the base.

In the embodiment of the invention, a connecting shaft is arranged at the center of the roller, and the roller is connected with the driven gear through the connecting shaft.

In an embodiment of the present invention, the roller is rotatably mounted to the connecting shaft.

In the embodiment of the invention, the roller assembly further comprises a wheel disc, the roller is eccentrically arranged on the wheel disc through the connecting shaft, the wheel disc is connected with the rotating shaft, and the driven gear drives the wheel disc to rotate.

In an embodiment of the present invention, the rotating shaft is fixedly connected to the base, the driven gear is rotatably connected to the rotating shaft, and the wheel disc can rotate relative to the rotating shaft; or, the rotating shaft is rotatably connected with the base, the driven gear is fixedly connected with the rotating shaft, and the wheel disc is fixedly connected with the rotating shaft.

In an embodiment of the invention, the annular rail is provided with an opening facing to the center of the base, and both ends of the hose extend out of the accommodating cavity after extending out of a space defined by the annular rail from the opening.

In an embodiment of the present invention, the driving gear includes a plurality of bases, the plurality of bases are stacked, the structure of the accommodating cavities of the bases is the same, and the driving gear in each accommodating cavity shares the driving shaft.

The invention also provides a motor which comprises a stator, a rotor and the planetary distributed peristaltic pump, wherein the stator comprises a stator winding and a stator core, the stator winding is provided with coil groups, one coil group is formed by winding a hollow enameled wire, and the other coil group comprises one or more coils; one end of the hollow enameled wire is communicated with the liquid outlet port of the hose, the other end of the hollow enameled wire is communicated with an external first liquid storage tank, the liquid inlet port of the hose is communicated with an external second liquid storage tank, and the rotor is in driving connection with the driving shaft.

In an embodiment of the invention, two ends of the hollow enameled wire are electrically connected with a solid enameled wire, and the coil group is connected into a circuit through the solid enameled wire.

In an embodiment of the present invention, the stator winding is provided with a plurality of coil groups, and different coil groups are connected in series through the solid enameled wire.

In an embodiment of the present invention, the outer diameter of the hollow enamel wire is 0.6mm to 2.0mm, and the inner diameter of the hollow enamel wire is 0.1mm to 1.0 mm.

The planet distributed peristaltic pump provided by the invention has the beneficial effects that: compared with the prior art, the planet distributed peristaltic pump integrates a plurality of sub peristaltic pumps on a single planet distributed peristaltic pump by arranging a plurality of annular tracks, the plurality of sub peristaltic pumps share the same driving shaft, and the sub peristaltic pumps are driven by the gear assembly to synchronously operate, so that a plurality of mutually independent liquid conveying pipelines with uniform flow can be provided, the requirements of various application scenes are met, the structure is compact, and higher space utilization efficiency is realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of a planetary distributed peristaltic pump according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a planetary distributed peristaltic pump according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a motor according to an embodiment of the present invention;

FIG. 4 is a first schematic diagram of the connection between the planetary distributed peristaltic pump and the stator winding provided by the embodiment of the invention;

FIG. 5 is a second schematic diagram of the connection between the planetary distributed peristaltic pump and the stator winding according to the embodiment of the present invention;

FIG. 6 is a third schematic view of the connection between the planetary distributed peristaltic pump and the stator winding provided by the embodiment of the invention;

fig. 7 is an exploded view of a motor according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a hollow enameled wire according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100-planetary distributed peristaltic pumps; 10-a base; 11-a containment chamber; 12-an endless track; 121-opening; 13-a rotating shaft; 14-a first gap; 15-a first via; 20-a roller assembly; 21-a roller; 22-a wheel disc; 23-a connecting shaft; 30-a hose; 40-a gear assembly; 41-a drive gear; 42-a driven gear; 43-a drive shaft; 50-a rear cover of a peristaltic pump; 51-second notch; 52-second via; 1000-motor; 200-a stator; 210-stator windings; 211-coil set; 2111-hollow enameled wire; 21111-insulating layer; 212-solid enameled wire; 220-a stator core; 300-a rotor;

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 7 together, a description will now be given of a planetary distributed peristaltic pump 100 according to an embodiment of the present invention. The planetary distributed peristaltic pump 100 includes a base 10, a roller assembly 20, a hose 30, and a gear assembly 40.

The base 10 is the main supporting body of each part of the planetary distributed peristaltic pump 100, a containing cavity 11 is arranged in the base 10, and a plurality of annular rails 12 which are circumferentially arranged are arranged on the bottom wall of the containing cavity 11. The circular track 12 is cylindrical, and a rotating shaft 13 connected with the base 10 is arranged at the center of the circular track 12.

The roller assembly 20 includes a roller 21, and the roller 21 is embedded in the circular rail 12.

The gear assembly 40 is accommodated in the accommodating cavity 11; the gear assembly 40 includes a driving gear 41, a driven gear 42, and a driving shaft 43; the driving shaft 43 is assembled at the central position of the base 10, and the driving shaft 43 is in driving connection with the driving gear 41; the driven gear 42 is connected with the rotating shaft 13, the driving gear 41 is meshed with a plurality of driven gears 42, and the driven gears 42 drive the roller 21 to rotate around the rotating shaft 13;

the number of the hoses 30 is multiple, at least one hose 30 is arranged in each annular track 12, and the hoses 30 in different annular tracks 12 are independent.

The hoses 30 abut against the side wall of the circular track 12, and the rollers 21 can intermittently press the hoses 30, and both ends of each hose 30 respectively protrude out of the accommodating cavity 11. One end of the hose 30 is connected to the inlet port, and the liquid in the hose 30 can flow forward and flow out from the other end of the hose 30 under the mutual pressing action of the roller 21 and the annular rail 12.

Specifically, the driving shaft 43 rotates the driving gear 41, and further rotates the plurality of driven gears 42 simultaneously. The driven gear 42 simultaneously rotates the rollers 21 in the plurality of circular tracks 12 around the rotating shaft 13, thereby driving the liquid in the hose 30 to flow through the rollers 21.

The planetary distributed peristaltic pump 100 of the present invention is provided with a plurality of annular tracks 12 in the base 10, each annular track 12 is equivalent to being provided with an independent sub-peristaltic pump, and the hoses 30 in different sub-peristaltic pumps are independent of each other, so that a plurality of sub-peristaltic pumps are integrated on one base 10. The driving gear 41 drives the plurality of driven gears 42 to rotate, so that the plurality of sub peristaltic pumps can be driven to work simultaneously. The sub peristaltic pumps of a plurality of differences can independently operate, work simultaneously and do not interfere with each other, a plurality of liquid conveying pipelines which are independent from each other and uniform in flow can be provided, meanwhile, high space utilization efficiency can be achieved, the structure is compact, and the multi-stage peristaltic pump can be suitable for various application scenes.

In an embodiment of the present invention, the plurality of circular rails 12 are uniformly distributed on the base 10. Specifically, three annular rails 12 may be disposed in the base 10, and the three annular rails 12 are uniformly distributed along the circumferential direction, that is, the centers of circles of the three annular rails 12 on the same horizontal plane are uniformly distributed on the same circumference.

In the embodiment of the present invention, referring to fig. 7, a connecting shaft 23 is disposed at a center position of the roller 21, and the roller 21 is connected to the driven gear 42 through the connecting shaft 23. The roller 21 is provided in plural number, eccentrically disposed on the circumference of the driven gear 42. Specifically, one driven gear 42 may connect three rollers 21, and the three rollers 21 are uniformly distributed along the circumferential direction of the driven gear 42.

In the embodiment of the present invention, the roller 21 is rotatably mounted to the connecting shaft 23. When the driven gear 42 rotates the roller 21 around the rotating shaft 13, the roller 21 drives the liquid in the hose 30 to flow forward by squeezing the hose 30. If the roller 21 cannot rotate around its connecting shaft 23, the friction between the roller 21 and the hose 30 is sliding friction. The friction of the sliding between the roller 21 and the hose 30 will cause a large loss of the hose 30, and reduce the service life of the hose 30. If the roller 21 is rotatable about the connecting shaft 23, the roller 21 in the endless track 12 may also rotate about the connecting shaft 23 while revolving about the rotating shaft 13. At this time, the friction between the roller 21 and the hose 30 is rolling friction. The rolling friction between the roller 21 and the hose 30 can reduce the loss of the hose 30 and increase the service life of the hose 30.

In the embodiment of the present invention, referring to fig. 7, the roller assembly 20 further includes a wheel disc 22, the roller 21 is eccentrically disposed on the wheel disc 22 through a connecting shaft 23, the wheel disc 22 is connected to the rotating shaft 13, and the driven gear 42 drives the wheel disc 22 to rotate. The wheel disc 22 is mainly used for bearing the roller 21, plays a certain reinforcing role for the roller 21, avoids the roller 21 from moving and deforming laterally when extruding the hose 30, prolongs the service life of the roller 21 and the connecting shaft 23, and ensures the extrusion effect of the roller 21 on the hose 30.

Further, a space can be reserved between the side of the roller 21 and the side of the wheel disc 22 for placing the hose 30. During the process of extruding the hose 30 by the roller 21, the wheel disc 22 can support the hose 30, so that the hose 30 can be accurately extruded, and the hose 30 is prevented from moving during the extruding process.

In one embodiment of the present invention, the rotating shaft 13 is fixedly connected to the base 10, the driven gear 42 is rotatably connected to the rotating shaft 13, and the wheel disc 22 can rotate relative to the rotating shaft 13. At this time, the roller 21 is rotated around the rotation shaft 13 by the direct drive of the driven gear 42.

In another embodiment of the present invention, the shaft 13 is rotatably connected to the base 10, the driven gear 42 is fixedly connected to the shaft 13, and the wheel disc 22 is fixedly connected to the shaft 13. At this time, the driven gear 42, the rotary shaft 13, and the wheel disc 22 are integrally connected, and are simultaneously rotated about the central axis of the rotary shaft 13 by the driven gear 42.

In an embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 7, the annular rail 12 is provided with an opening 121 facing the center of the base 10, and both ends of the flexible tube 30 extend out of the space surrounded by the annular rail 12 from the opening 121 and then extend out of the accommodating cavity 11. The opening 121 provides a space for the engagement contact of the driven gear 42 and the driving gear 41 when the driven gear 42 is inserted into the circular track 12 to be coupled to the roller 21. So set up, can make the structure compacter.

In the embodiment of the present invention, referring to fig. 2, a planetary distributed peristaltic pump 100 further includes a plurality of bases 10, the bases 10 are stacked up and down, and the containing cavities 11 of the bases 10 have the same structure, that is, the containing cavities 11 of the bases 10 are provided with roller assemblies 20, hoses 30 and gear assemblies 40. The drive gears 41 in the respective housing chambers 11 share a drive shaft 43. By the arrangement, the number of the sub peristaltic pumps in the planetary distributed peristaltic pump 100 can be increased under the condition that the overall outer diameter of the planetary distributed peristaltic pump 100 is not increased and only a small amount of axial length is increased, and the sub peristaltic pumps are driven by the same driving shaft 43 to run simultaneously, so that the number of liquid conveying pipelines in the single planetary distributed peristaltic pump 100 can be increased easily. The device has simple structure, convenient superposition and compact structure, and can meet the requirements of a plurality of application scenes

Specifically, if two bases 10 are stacked up and down on one planetary distributed peristaltic pump 100, three annular tracks 12 are arranged in each base 10, that is, each base 10 integrates three sub-peristaltic pumps, and an independent hose 30 is configured in each annular track 12, the planetary distributed peristaltic pump 100 can provide 6 independent liquid pipelines in total, and can meet the requirements of multiple application scenarios.

In an embodiment of the present invention, referring to fig. 1, 2 and 7, the bottom wall of the base 10 is provided with a first notch 14 for extending the flexible tube 30, and a first through hole 15 for extending the driving shaft 43 is provided at a central position of the bottom wall of the base 10.

In an embodiment of the present invention, referring to fig. 3 and fig. 7, the planetary distributed peristaltic pump 100 further includes a peristaltic pump rear cover 50, the peristaltic pump rear cover 50 covers the open end of the base 10, the peristaltic pump rear cover 50 is provided with a second notch 51 for extending the flexible tube 30, and a second through hole 52 for extending the driving shaft 43 is provided at a central position of the peristaltic pump rear cover 50. The peristaltic pump back cover 50 can secure the gear assembly 40 and avoid interference of foreign objects inside the planetary distributed peristaltic pump 100. The peristaltic pump rear cover 50 may be mounted to the base 10 by means of a snap fit or the like.

The motor produces a large amount of heats at the in-process of operation, if can not in time cool off the heat dissipation to the motor, can lead to the motor high temperature and damage to life and security performance have been reduced. Furthermore, existing hardware technology is developing at a rapid pace, with the torque and power requirements of the electric machines becoming increasingly higher. The rated torque and power of the motor can be improved by enhancing the heat dissipation of the motor. The heat generated by the motor in operation is exchanged to keep the temperature of the motor body within a specified range, so that the motor can be ensured to operate at high torque and high power.

The conventional heat dissipation method of the motor needs to add an additional cooling structure, such as a flow channel disposed on the motor casing, and the heat is taken away by cooling water or cooling oil. The heat dissipation method has a complicated mechanical structure and needs to consider the problems of sealing property and the like, and is difficult to be used in the occasions such as an electric foot-driven robot and the like which have extremely high requirements on light weight and miniaturization of a motor.

In order to solve the above problems, referring to fig. 1 to 8, the present invention further provides a motor 1000, which includes a stator 200, a rotor 300 and the above planetary distributed peristaltic pump 100, wherein the stator 200 includes a stator winding 210 and a stator core 220, the stator winding 210 is provided with coil groups 211, one coil group 211 is formed by winding a hollow enameled wire 2111, and one coil group 211 includes one or more coils; one end of the hollow enameled wire 2111 is communicated with a liquid outlet port of the hose 30, the other end of the hollow enameled wire 2111 is communicated with a first liquid storage tank outside, a liquid inlet port of the hose 30 is communicated with a second liquid storage tank outside, and the rotor 300 is in driving connection with the driving shaft 43. Preferably, the output shaft of the motor 1000 is arranged coaxially with the drive shaft 43 of the planetary distributed peristaltic pump 100. Preferably, the hollow enameled wire 2111 is a hollow enameled copper wire.

The liquid in the second liquid storage tank enters the hose 30 through the liquid inlet port of the hose 30, the liquid in the hose 30 flows forward at an accelerated speed under the extrusion action of the roller 21, and enters the hollow enameled wires 2111 of the coil assembly 211, the coil assembly 211 is cooled in a convection heat transfer mode, and the liquid in the hollow enameled wires 2111 finally flows into the first liquid storage tank through the liquid outlet port.

The planetary distributed peristaltic pump 100 is applied to motor cooling, the hollow enameled wire 2111 of the coil set 211 is used as a cooling liquid channel, cooling liquid is directly cooled from the inside of a heat source of the motor 1000, cooling efficiency is greatly improved, the required cooling liquid amount is small, and no additional accessory structure exists.

In addition, the planetary distributed peristaltic pump 100 utilizes the power of the motor itself to drive a plurality of sub-peristaltic pumps to work simultaneously through the same driving shaft 43, the faster the rotation speed of the motor 1000 is, the larger the flow rate of the cooling liquid is, and the more heat is taken away by the cooling liquid when the cooling liquid circulates in the coil assembly 211. The single planet distributed peristaltic pump 100 integrates a plurality of sub peristaltic pumps, the sub peristaltic pumps can simultaneously convey cooling liquid to the pipelines of the coil groups 211 of the stator winding 210, the flow rate of the cooling liquid between every two pipelines is uniform, the flow rate is stable, and the cooling efficiency is improved. In addition, by superposing a plurality of bases 10 on top of each other on the planetary distributed peristaltic pump 100, independent cooling liquid conveying pipelines can be further added, and more coil groups 211 can be cooled.

Specifically, if the single-layer planetary distributed peristaltic pump 100 is integrated with three sub-peristaltic pumps, each sub-peristaltic pump is provided with a hose 30, and the hoses can convey cooling liquid to the three coil groups 211. If two bases 10 are stacked up and down, three sub peristaltic pumps are integrated in each base 10, and each sub peristaltic pump is provided with one hose 30, the single planetary distributed peristaltic pump 100 can simultaneously convey cooling liquid to six coil groups 211.

In an embodiment of the present invention, referring to fig. 4 to 6, both ends of the hollow enameled wire 2111 are electrically connected to a solid enameled wire 212, and the coil assembly 211 is connected to a circuit through the solid enameled wire 212. The solid enameled wire 212 connected with one end of the hollow enameled wire 2111 is connected with the positive pole of the circuit, and the solid enameled wire 212 connected with the other end of the hollow enameled wire 2111 is connected with the negative pole of the circuit.

In an embodiment of the present invention, referring to fig. 5 and fig. 6, the stator winding 210 has a plurality of coil sets 211, and different coil sets 211 are connected in series by solid enameled wires 212. A plurality of coil groups 211 are connected in series to one stator winding 210 and connected to the circuit of the motor 1000 by solid enameled wires 212. The hollow enameled wire 2111 in each coil set 211 is communicated with a hose 30 of a sub peristaltic pump of the planetary distributed peristaltic pump 100, that is, each coil set 211 is communicated with an independent cooling liquid conveying pipeline. With this arrangement, a plurality of independent coolant supply lines are provided to one stator winding 210, so that the cooling rate of the individual stator windings 210 can be increased.

In an embodiment of the present invention, the outer diameter of the hollow enameled wire 2111 is 0.6mm to 2.0mm, and the inner diameter of the hollow enameled wire 2111 is 0.1mm to 1.0 mm. The small-sized hollow enameled wire 2111 can be conveniently wound, so that the coil group 211 has more turns to generate stronger electromagnetic field intensity, thereby improving the torque of the motor 1000.

Referring to fig. 8, the outer ring of the hollow enameled wire 2111 is provided with an insulation layer 21111, which can make the wires of the coil assembly 211 closely contact each other and prevent short contact between the wires, and meanwhile, the contact winding can improve the space utilization rate, so that the coil assembly 211 has more turns, and the strength of the electromagnetic field is improved to further improve the torque.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a planet distributing type peristaltic pump, includes base, roller assembly, hose, gear assembly, its characterized in that:

2. The planetary distributed peristaltic pump of claim 1, wherein the plurality of annular tracks are evenly distributed on the base.

3. The planetary distributed peristaltic pump as claimed in claim 1, wherein a connecting shaft is provided at a central position of the roller, and the roller is connected to the driven gear through the connecting shaft.

4. A planetary distributed peristaltic pump as set forth in claim 3, wherein said roller is rotatably mounted to said connecting shaft.

5. The planetary distributed peristaltic pump as claimed in claim 4, wherein the roller assembly further comprises a wheel disc, the roller is eccentrically disposed on the wheel disc through the connecting shaft, the wheel disc is connected to the rotating shaft, and the driven gear drives the wheel disc to rotate.

6. The planetary distributed peristaltic pump as set forth in claim 5, wherein said shaft is fixedly coupled to said base, said driven gear is rotatably coupled to said shaft, and said disk is rotatable relative to said shaft; or, the rotating shaft is rotatably connected with the base, the driven gear is fixedly connected with the rotating shaft, and the wheel disc is fixedly connected with the rotating shaft.

7. The planetary distributed peristaltic pump as claimed in claim 1, wherein the annular track is provided with an opening facing a central position of the base, and both ends of the flexible tube extend out of the accommodating cavity after extending out of a space surrounded by the annular track from the opening.

8. The planetary distributed peristaltic pump as in any one of claims 1 to 7, comprising a plurality of the bases, the plurality of bases being arranged in a stack, the configuration of the drive gear within the receiving cavity of each base being the same, and the drive gear within each receiving cavity sharing the drive shaft.

9. An electric machine comprising a stator, a rotor and a planetary distributed peristaltic pump as claimed in any one of claims 1 to 8, the stator comprising a stator winding and a stator core, the stator winding being provided with coil groups, one of the coil groups being formed by winding a hollow enameled wire, one of the coil groups comprising one or more coils; one end of the hollow enameled wire is communicated with the liquid outlet port of the hose, the other end of the hollow enameled wire is communicated with an external first liquid storage tank, the liquid inlet port of the hose is communicated with an external second liquid storage tank, and the rotor is in driving connection with the driving shaft.

10. The motor according to claim 9, wherein a solid enameled wire is electrically connected to both ends of the hollow enameled wire, and the coil assembly is connected to the circuit through the solid enameled wire.

11. The electric machine of claim 10, wherein the stator winding is provided with a plurality of coil groups, different coil groups being connected in series by the solid enameled wire.

12. The motor according to any one of claims 9 to 11, wherein the outer diameter of the hollow enamel wire is 0.6mm to 2.0mm, and the inner diameter of the hollow enamel wire is 0.1mm to 1.0 mm.