WO2023236040A1 - Ensemble double pompe à moteur chemisé et faible puissance - Google Patents

Ensemble double pompe à moteur chemisé et faible puissance Download PDF

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Publication number
WO2023236040A1
WO2023236040A1 PCT/CN2022/097389 CN2022097389W WO2023236040A1 WO 2023236040 A1 WO2023236040 A1 WO 2023236040A1 CN 2022097389 W CN2022097389 W CN 2022097389W WO 2023236040 A1 WO2023236040 A1 WO 2023236040A1
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WO
WIPO (PCT)
Prior art keywords
stator
plastic
electric pump
rotor
low
Prior art date
Application number
PCT/CN2022/097389
Other languages
English (en)
Chinese (zh)
Inventor
刘翁帆
Original Assignee
汉宇集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 汉宇集团股份有限公司 filed Critical 汉宇集团股份有限公司
Priority to PCT/CN2022/097389 priority Critical patent/WO2023236040A1/fr
Priority to CN202280043861.0A priority patent/CN117999415A/zh
Publication of WO2023236040A1 publication Critical patent/WO2023236040A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F04D13/14—Combinations of two or more pumps the pumps being all of centrifugal type

Definitions

  • the present invention provides a low-power double-shield electric pump combination with compact structure and simple installation.
  • a low-power double-canned electric pump combination including two low-power canned electric pumps assembled together along the same axis - a first canned electric pump and a second canned electric pump, and one end of the motors of the two low-power canned electric pumps They are close together and the stator shielding sleeve is injection molded into one body, and the other end drives the impeller of the respective pump.
  • the low-power double-shielded electric pump combination of the present invention one end of the motors of the two low-power shielded electric pumps is brought close together and the stator shielding sleeves are injection molded into one body. Their respective motors drive the impellers located at both ends of the stator shielding sleeves to rotate.
  • the low-power double-shielded electric pump combination designed above has a compact overall structure, simple installation, easy production, and has good shielding and environmental protection effects.
  • first stator plastic sealing part and the second stator plastic sealing part are axially inserted and connected.
  • the axial plug-in connection between the first stator plastic part and the second stator plastic part is specifically: the first plastic shell has an axially protruding first boss, and the second plastic shell has an axially concave second boss.
  • the two grooves are inserted through the first boss and the second groove; or the first plastic shell is provided with a concave first groove in the axial direction, and the second plastic shell is provided with an axially convex second boss, The two are plugged in through the first groove and the second boss.
  • the main body of the stator shielding sleeve is a cylindrical body, which includes an annular outer shell part, an inner shell part located within the outer shell part, and a connecting part connecting the outer shell part and the inner shell part.
  • the first stator plastic sealing part and the first stator plastic sealing part are 2.
  • the plastic sealing part of the stator is located in the space surrounded by the outer shell part, the inner shell part and the connecting part.
  • the hollow space of the inner shell part forms an inner cavity.
  • the inner wall of the inner cavity has bumps protruding inward.
  • the first rotor and the second rotor respectively located on both axial sides of the bump.
  • first plastic shell is provided with a first shaft hole in the axial direction
  • second plastic shell is provided with a second shaft hole located on the other side of the axis in the fixed connection state.
  • the first stator part includes a first iron core and a first insert electrically connected to the first winding, and the first winding is sealed in the first plastic shell;
  • the second stator part includes a second iron core and a second winding.
  • the electrically connected second blade and the second winding are sealed in the second plastic shell; the pins of the first blade and the second blade extend radially through the shell part of the stator shielding sleeve.
  • the low-power double-shielded electric pump combination also includes a first pin that electrically connects the circuit board and the first iron core, and a second pin that electrically connects the circuit board and the second iron core.
  • the low-power double-shielded electric pump combination also includes a first spring and a second spring
  • the stator shield sleeve is provided with radial through holes at locations close to the outer cylinder of the first iron core and the outer cylinder of the second iron core.
  • the first spring and the second spring are respectively installed in the two radial through holes, and the first spring electrically conducts the first iron core and the first pin, and the second spring electrically conducts the second iron core and the second pin.
  • At least one side of the axial direction of the bump is set with a sub-shielding sleeve boss, and the stator shielding sleeve boss is provided with a shaft hole.
  • the low-power double canned electric pump assembly also includes a first rotating shaft fixedly installed on the shaft hole, a first impeller part located at one axial end and a second impeller part located at the other axial end;
  • the first rotor includes a 1. Magnetic core, 1st bearing and 1st impeller part.
  • the 1st impeller part includes a 1st plastic connecting part that fixedly connects the 1st magnetic core and the 1st bearing and a 1st impeller part located at one axial end of the 1st plastic connecting part.
  • the first rotor is rotatably installed on the first rotating shaft; and/or it also includes a second rotating shaft fixedly installed on the shaft hole, the second rotor includes a second magnetic core, a second bearing and a second impeller part, the second The impeller part includes a second plastic connecting part that fixedly connects the second magnetic core and the second bearing and a second impeller part located at one axial end of the second plastic connecting part.
  • the second rotor is rotatably mounted on the second rotating shaft.
  • the impeller includes a first impeller part located on one side of the axial direction and a second impeller part located on the other side of the axial direction;
  • the first rotor includes a first magnetic core, a first sleeve, a first rotating shaft, and is fixed on the first The first impeller part at one end of the rotating shaft and the first rotor connecting part that fixedly connects the first magnetic core and the first sleeve, the first rotating shaft and the first sleeve are fixedly connected;
  • the second rotor includes a second magnetic core, The second shaft sleeve, the second rotating shaft, the second impeller portion fixed to one end of the second rotating shaft, the second rotor connecting portion fixedly connecting the second magnetic core and the second shaft sleeve, the second rotating shaft and the second shaft sleeve being fixedly connected.
  • the low-power double-shield electric pump combination also includes an end cover provided on the stator shield sleeve on the side where the second rotor is installed and an impeller bearing provided on the end cover.
  • the first rotating shaft or the second rotating shaft passes through the impeller.
  • Figure 1 is a schematic three-dimensional structural diagram of the low-power double-shielded electric pump combination of the present invention
  • Figure 2 is a cross-sectional view of the first embodiment of the low-power double-shield electric pump combination of the present invention
  • Figure 3 is a schematic three-dimensional structural diagram of the first stator plastic sealing part of the present invention.
  • Figure 4 is a schematic three-dimensional structural diagram of the second stator plastic sealing part of the present invention.
  • Figure 5 is a cross-sectional view of the first stator plastic part and the second stator plastic part after assembly
  • Figure 6 is a partial enlarged structural diagram of A in Figure 5;
  • Figure 9 is a schematic three-dimensional structural diagram of the first embodiment of the first rotor of the present invention.
  • Figure 10 is a cross-sectional view of the first embodiment of the first rotor of the present invention.
  • Figure 11 is a cross-sectional view of the second embodiment of the low-power double-shield electric pump combination of the present invention.
  • Figure 12 is a schematic three-dimensional structural diagram of the second embodiment of the first rotor of the present invention.
  • the second rotor 300 is installed on one side of the inner cavity 20 and driven by the rotating magnetic field generated by the first stator plastic part 400 .
  • the second rotor 300 is installed on the other side of the inner cavity 20 and driven by the rotating magnetic field generated by the second stator plastic part 500 .
  • a stator shielding sleeve is formed by injection molding on the fixedly connected first stator plastic part and the second stator plastic part, and the first stator plastic part and the second stator plastic part each generate a rotating magnetic field to drive The first rotor and the second rotor located on both sides of the inner cavity in the axial direction rotate respectively.
  • the low-power double-shielded electric pump combination designed above has a compact overall structure, simple installation, and easy production.
  • the first stator plastic part 400 includes a first stator part 410 and a first plastic shell 420 injection molded on the first stator part.
  • the second stator plastic part 500 includes a second stator part 510 and a first plastic shell 420 injection molded on the first stator part. 2.
  • the second plastic shell 520 on the stator part.
  • the first stator plastic sealing part 400 and the second stator plastic sealing part 500 are axially inserted and connected. This design facilitates the installation of the first stator part and the second stator part and improves production efficiency.
  • the first stator plastic part 400 and the second stator plastic part 500 are axially inserted and connected, specifically: the axially protruding first boss 422 of the first plastic case 420, the second plastic case 520 A concave second groove 522 is provided in the axial direction of the stator, and the first stator plastic part 400 and the second stator plastic part 500 are plug-connected through the first boss 422 and the second groove 522 .
  • the above design is beneficial to the production and assembly of the first stator plastic part and the second stator plastic part; or the first plastic shell is provided with a concave first groove in the axial direction, and the second plastic shell is axially convex.
  • the stator shielding sleeve 100 includes an annular outer shell part 110, an inner shell part 120 located within the outer shell part, and a connecting part 130 connecting the outer shell part and the inner shell part.
  • the first stator plastic sealing part 400 and the second stator plastic sealing part 500 are located in the space surrounded by the outer shell part, the inner shell part and the connecting part.
  • the hollow space of the inner shell part 120 forms an inner cavity 20, and the inner wall surface of the inner cavity 20 faces toward
  • the inner protruding bump 140, the first rotor 200 and the second rotor 300 are respectively located on both axial sides of the bump 140. This structure facilitates the production of the stator shielding sleeve and the installation of the first rotor 200 and the second rotor 300.
  • the first plastic case 420 is provided with a first shaft hole 421 in the axial direction
  • the second plastic case 520 is provided with a second shaft hole 521 in the axial direction
  • the first stator plastic part 400 and the second stator plastic part 500 In the fixed connection state, the first shaft hole 421 and the second shaft hole 521 are respectively located on both sides of the axis.
  • the mold pins are inserted into the first axis hole 421 and the second axis hole 521 to position the mold for injection molding the stator shielding sleeve.
  • the above design can simplify the structure of the mold for injection molding the stator shielding sleeve.
  • the low-power double-shielded electric pump assembly of the present invention also includes a plug cover 600 with a cylindrical main body.
  • a first hole facing the first shaft hole 421 is formed on the connecting part 130.
  • the plug cover 600 is fixedly mounted on the first axial hole 131 and the second axial hole 132 facing the second axial hole 521 .
  • the second stator plastic part 500 includes a second iron core 511 and a second coil former 514 fixed on the second iron core 511 and wound around the second coil
  • the second winding 512 on the frame 514, the second insert 513 electrically connected to the second winding 512, and the second stator plastic sealing part 500 are injection-molded inserts of the second stator part 510, which are put into the mold to form a fixed position.
  • the second plastic shell 520 is on the second stator part 510, in which the second winding 512 is sealed in the second plastic shell 520.
  • the first blade 413 includes a first blade body and a first blade pin 415 that is bent and connected to the blade body.
  • the stator shielding sleeve 100 further includes a circumferential edge portion 150 that protrudes outward from the outer peripheral wall of the housing portion 110 to form a ring-column shape.
  • the low-power double-shielded electric pump assembly of the present invention also includes a circuit board 630 and a side cover 640 covering the surrounding part.
  • the circuit board 630 is provided in the installation formed by the surrounding part 150 and the side cover 640.
  • the first blade pin 415 and the second blade pin 515 are electrically connected to the circuit board 630 .
  • This structure uniformly installs the circuit boards that control the first rotor and the second rotor in the installation cavity of the stator shielding sleeve, which is beneficial to the integration of the circuit boards and the realization of automated welding and installation.
  • one axial side thereof is electrically connected to the second iron core 511, and the other side is electrically connected to the second pin 720.
  • a sub-shielding sleeve boss 141 is set on one side or both sides of the axial direction of the bump 140, and a shaft hole is provided on the stator shielding sleeve boss 141. 142.
  • the bearing 320 is fixedly connected to the second plastic connecting part 331 and the second impeller located at one axial end of the second plastic connecting part 331.
  • This structure facilitates the production and installation of the first rotor or the second rotor and improves the production efficiency of the canned electric pump.
  • one side of the low-power double-canned electric pump combination adopts the structure of the first rotor or the second rotor, and the other side adopts the structure of the first rotor in other ways.
  • the difference between this embodiment and Embodiment 1 is that the structure of the first rotor is different.
  • the second rotating shaft and the second impeller of the second rotor of this embodiment have a structure that rotates simultaneously.
  • the impeller of this embodiment includes an impeller part located on one axial side and a second impeller part 330' located on the other axial side.
  • the second rotor 300' includes a second magnetic core 310', a second sleeve 320', 2 rotating shaft 340', a second impeller 330' fixed at one end of the second rotating shaft, and a second rotor connecting part 350' that fixedly connects the second magnetic core 310' and the second sleeve 320'. 2 shaft sleeves 320′ fixed connection.
  • the low-power double-shield electric pump assembly of this embodiment also includes an end cover 650 provided on the stator shield sleeve 100 on the side where the second rotor 300' is installed, and an impeller bearing 660 provided on the end cover.
  • the second rotating shaft 340' passes through the inner ring of the impeller bearing 660.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Un ensemble double pompe à moteur chemisé et faible puissance, comprend deux pompes à moteur chemisé de faible puissance, à savoir une première pompe à moteur chemisé et une seconde pompe à moteur chemisé, qui sont assemblées d'un seul tenant le long du même axe. Les moteurs des deux pompes à moteur chemisé de faible puissance sont proches l'un de l'autre à une de leurs extrémités, des boîtes de stator sont soumises à un moulage par injection intégré, et des roues de pompes respectives sont entraînées par les autres extrémités des moteurs. En fonction de l'ensemble double pompe à moteur chemisé et à faible puissance, les moteurs des deux pompes à moteur chemisé et à faible puissance sont proches l'un de l'autre à une extrémité, des boîtes de stator sont soumises à un moulage par injection intégré, et les moteurs respectifs entraînent en rotation des roues situées aux deux extrémités de la boîte du stator. L'ensemble double pompe à moteur chemisé et à faible puissance de l'invention est compact dans sa structure globale et facile à installer et à produire, et présente un bon blindage et de bons effets de protection de l'environnement.
PCT/CN2022/097389 2022-06-07 2022-06-07 Ensemble double pompe à moteur chemisé et faible puissance WO2023236040A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2022/097389 WO2023236040A1 (fr) 2022-06-07 2022-06-07 Ensemble double pompe à moteur chemisé et faible puissance
CN202280043861.0A CN117999415A (zh) 2022-06-07 2022-06-07 一种小功率双屏蔽电泵组合

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/097389 WO2023236040A1 (fr) 2022-06-07 2022-06-07 Ensemble double pompe à moteur chemisé et faible puissance

Publications (1)

Publication Number Publication Date
WO2023236040A1 true WO2023236040A1 (fr) 2023-12-14

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PCT/CN2022/097389 WO2023236040A1 (fr) 2022-06-07 2022-06-07 Ensemble double pompe à moteur chemisé et faible puissance

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CN (1) CN117999415A (fr)
WO (1) WO2023236040A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130294928A1 (en) * 2012-05-04 2013-11-07 Ghsp, Inc. Dual pump and motor with control device
CN203374442U (zh) * 2012-03-16 2014-01-01 马勒国际有限公司 泵模块以及具有内燃机和至少一个这种泵模块的汽车
CN113318345A (zh) * 2020-02-13 2021-08-31 莱维特朗尼克斯有限责任公司 泵送装置、一次性使用装置和用于操作泵送装置的方法
CN216111292U (zh) * 2021-01-26 2022-03-22 汉宇集团股份有限公司 一种电动机轴二端各传动一泵结构的屏蔽电泵

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203374442U (zh) * 2012-03-16 2014-01-01 马勒国际有限公司 泵模块以及具有内燃机和至少一个这种泵模块的汽车
US20130294928A1 (en) * 2012-05-04 2013-11-07 Ghsp, Inc. Dual pump and motor with control device
CN113318345A (zh) * 2020-02-13 2021-08-31 莱维特朗尼克斯有限责任公司 泵送装置、一次性使用装置和用于操作泵送装置的方法
CN216111292U (zh) * 2021-01-26 2022-03-22 汉宇集团股份有限公司 一种电动机轴二端各传动一泵结构的屏蔽电泵

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