CN109494922B - Novel motor for water pump - Google Patents

Novel motor for water pump Download PDF

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Publication number
CN109494922B
CN109494922B CN201811482938.6A CN201811482938A CN109494922B CN 109494922 B CN109494922 B CN 109494922B CN 201811482938 A CN201811482938 A CN 201811482938A CN 109494922 B CN109494922 B CN 109494922B
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CN
China
Prior art keywords
rotor
cavity
bearing seat
water
end cover
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Active
Application number
CN201811482938.6A
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Chinese (zh)
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CN109494922A (en
Inventor
杨学良
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Zhejiang Xiling Co ltd
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Zhejiang Xiling Co ltd
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Priority to CN201811482938.6A priority Critical patent/CN109494922B/en
Publication of CN109494922A publication Critical patent/CN109494922A/en
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Publication of CN109494922B publication Critical patent/CN109494922B/en
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    • 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
    • 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
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • 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
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/04—Balancing means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H02K9/18—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle wherein the external part of the closed circuit comprises a heat exchanger structurally associated with the machine casing
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The invention relates to a novel motor for a water pump, which comprises a shell, a rotor assembly, a shielding sleeve, an upper bearing seat, a lower bearing seat, an upper end cover and a lower end cover, wherein the shell is provided with a plurality of through holes; the rotor assembly comprises a rotor shaft arranged in the casing in a penetrating manner, a rotor sleeved on the rotor shaft and a magnetic steel sleeve; the upper bearing seat is arranged at the upper end of the upper end cover, the lower bearing seat is arranged at the lower end of the lower end cover, a cavity is formed among the machine shell, the upper end cover and the lower end cover, and the cavity comprises a stator cavity and a rotor cavity; the shielding sleeve is sleeved in the rotor cavity and sleeved outside the rotor assembly; the upper end of the lower bearing seat is arc-shaped, the upper end of the lower bearing seat is provided with a thrust disc matched with the lower bearing seat, an annular groove is formed in the thrust disc, a thrust tile which keeps balance and reduces friction is arranged in the annular groove, the upper end of the thrust tile is provided with a friction block, and the friction block is connected with the rotor assembly. The invention aims to provide a novel motor for a water pump, which has the advantages of stable structure, good balance and long service life.

Description

Novel motor for water pump
Technical Field
The invention belongs to the technical field of water pumps, and particularly relates to a novel motor for a water pump.
Background
At present, most of water pump motors are designed by adopting structures such as deep groove ball bearings and angular contact bearings, and the structures often cannot solve the problems of friction and balance generated by torque and axial force radial force of a rotor shaft in the rotating process.
Disclosure of Invention
The invention aims to provide a novel motor for a water pump, which has the advantages of stable structure, good balance and long service life.
The purpose of the invention is realized as follows: a novel motor for a water pump comprises a machine shell, a rotor assembly, a shielding sleeve, an upper bearing seat, a lower bearing seat, an upper end cover and a lower end cover; the rotor assembly comprises a rotor shaft arranged in the shell in a penetrating mode, a rotor sleeved on the rotor shaft and a magnetic steel sleeve; the upper bearing seat is arranged at the upper end of the upper end cover, the lower bearing seat is arranged at the lower end of the lower end cover, a cavity is formed among the casing, the upper end cover and the lower end cover, and the cavity comprises a stator cavity and a rotor cavity; the shielding sleeve is sleeved in the rotor cavity and sleeved outside the rotor assembly; the upper end of the lower bearing seat is arc-shaped, the upper end of the lower bearing seat is provided with a thrust disc matched with the lower bearing seat, an annular groove is formed in the thrust disc, a thrust tile which keeps balance and reduces friction is arranged in the annular groove, the upper end of the thrust tile is provided with a friction block, and the friction block is connected with the rotor assembly.
Preferably, the upper end and the lower end of the rotor are respectively provided with an upper rotor end ring and a lower rotor end ring for compressing the rotor coils.
Preferably, a protective cover with a sealing function is sleeved at the upper end of the rotor shaft, and a first protective sleeve is clamped on the protective cover.
Preferably, a stator is arranged in the stator cavity, heat dissipation pieces are respectively arranged on the upper side and the lower side of the stator, and the heat dissipation pieces are arranged in the sealing cavity.
Preferably, a groove is formed in the lower bearing seat, a water bag baffle is installed in the groove, a water bag pressing plate is arranged on the water bag baffle, and a base is arranged at the lower end of the water bag pressing plate.
Preferably, a refrigerating device is arranged in the casing, the refrigerating device comprises a box body and a first air outlet unit, and the box body is provided with a heat exchanger for cooling air in the permanent magnet motor; the first air outlet unit is disposed at an upper portion of a front side of the cabinet or on a top of the cabinet, and includes a first outlet at the front side and a first air direction control member configured to control a direction of cool air blown out through the first outlet, wherein the first air direction control member controls the cool air blown out through the first outlet to be directed into the cabinet while cooling at least a portion of a space set inside the cabinet to a preset cooling temperature; both sides of the box body are provided with an air suction unit and a second air outlet unit, and the air suction unit is provided with an inlet and an inlet opening/closing member; the second air outlet unit includes a second outlet at a front side and a second air direction control member configured to control a direction of the cool air blown out through the second outlet.
Preferably, an exhaust pipe is disposed at one side of the refrigerating device, and a second check valve for preventing backflow of hot gas is disposed on the exhaust pipe.
Preferably, a cavity is formed in the side wall of the sealed cavity, a plurality of water pipes penetrating through the cavity are arranged on the side wall, one end of each water pipe is located outside the side wall, the other end of each water pipe is located in the sealed cavity, and at least one sand-proof filter layer is arranged in each water pipe.
Preferably, the number of the sand prevention filter layers is two, and the two sand prevention filter layers are respectively arranged at an inlet and an outlet in the water through pipe.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that:
1. the thrust bearing is a thrust bearing, the spherical contact surface of the lower bearing seat and the thrust disc ensures the balance of the thrust bearing, the pressure is smaller and more stable, the friction is smaller, and the spherical thrust bearing which generates axial force and radial force in the working process of the motor can well ensure the balance and reduce the friction.
2. The cooling device arranged at the upper end of the motor can discharge heat generated in the motor operation process in time, and can prevent the motor from being burnt out in a high-speed operation environment.
Drawings
FIG. 1 is a cross-sectional view of a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of a second embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the cooling device of the present invention;
FIG. 4 is a cross-sectional view of a third embodiment of the present invention;
fig. 5 is an enlarged view at a in fig. 4.
In the figure: 1-a machine shell; 2-a rotor assembly; 21-a rotor shaft; 22-a rotor; 23-a magnetic steel sleeve; 24-a graphite sleeve; 25-rotor upper end ring; 26-rotor lower end ring; 28-a protective cover; 29-a first protective sheath; 3-a shielding sleeve; 4-upper bearing seat; 5-lower bearing seat; 51-a groove; 52-water pocket baffles; 53-water pocket pressing plate; 54-a base; 55-a thrust disc; 56-annular groove; 57-thrust shoe; 58-friction block; 6-upper end cover; 7-lower end cap; 8, a cavity; 81-stator cavity; 82-a rotor cavity; 83-a stator; 9-a heat sink; 91-sealing the cavity; 92-a cavity; 93-side walls; 94-water pipe; 95-sand control filter layer; 96-tightening the nut; 10-a refrigeration device; 101-a box body; 102-a first air outlet unit; 103-a first outlet; 104-a first gas direction control member; 105-a suction unit; 106-a second outlet cell; 107-inlet; 108-inlet opening/closing member; 109-a second outlet; 110-a second gas direction control member; 130-an exhaust pipe; 140-a second check valve; 150-a first check valve; 160-rotor baffles; 170-a second protective sheath; 180-oil sealing; 190-through holes.
Detailed Description
The invention is further described below in terms of specific examples.
The first embodiment is as follows: as shown in fig. 1, a novel motor for a water pump comprises a machine shell 1, a rotor assembly 2, a shielding sleeve 3, an upper bearing seat 4, a lower bearing seat 5, an upper end cover 6 and a lower end cover 7; the rotor assembly 2 comprises a rotor shaft 21 arranged in the casing 1 in a penetrating manner, a rotor 22 sleeved on the rotor shaft 21 and a magnetic steel sleeve 23; the upper bearing seat 4 is arranged at the upper end of the upper end cover 6, the lower bearing seat 5 is arranged at the lower end of the lower end cover 7, a cavity 8 is formed among the machine shell 1, the upper end cover 6 and the lower end cover 7, and the cavity 8 comprises a stator cavity 81 and a rotor cavity 82; the shielding sleeve 3 is sleeved in the rotor cavity 82, and the shielding sleeve 3 is sleeved outside the rotor assembly 2; the upper end of the lower bearing seat 5 is arc-shaped, the upper end of the lower bearing seat 5 is provided with a thrust disc 55 matched with the lower bearing seat, an annular groove 56 is formed in the thrust disc 55, a thrust tile 57 which keeps balance and reduces friction is arranged in the annular groove 56, the upper end of the thrust tile 57 is provided with a friction block 58, and the friction block 58 is connected with the rotor assembly 2.
The thrust bearing 57 in the technical scheme is a thrust bearing, the spherical contact surface of the lower bearing seat 5 and the thrust disc 55 ensures the balance problem of the thrust bearing 57, the pressure is smaller and more stable, the friction is smaller, and the spherical thrust bearing which generates the axial force and the radial force in the working process of the motor can well ensure the balance and reduce the friction.
Preferably, a first check valve 150 for water inlet is arranged above the machine shell 1, and the first check valve 150 is communicated with the rotor cavity 82; a through hole 190 is formed on the lower bearing seat 5, and the through hole 190 is communicated with the groove 51.
This technical scheme sets up in first check valve 150 can prevent the water refluence return pump in the casing 1, be provided with through-hole 190 on the step 5 and can guarantee that the hydroenergy in the rotor chamber 82 flows into recess 51 in and contact each other with water pocket baffle 52 and water pocket clamp plate 53, prevent that water pocket baffle 52 and water pocket clamp plate 53 from melting under high temperature environment.
Preferably, an oil seal 180 with a sealing function is further sleeved on the rotor shaft 21, and the oil seal 180 is arranged in the upper end cover 6.
Preferably, the rotor shaft 21 is sleeved with a graphite sleeve 24 for protecting the rotor shaft 21, and the graphite sleeve 24 is arranged in the upper bearing seat 4.
The graphite sleeve 24 of the present technical solution is provided with a second protective sleeve 170 therein, and the second protective sleeve 170 is used for reducing the friction coefficient between the rotor shaft 21 and the graphite sleeve 24.
Preferably, a rotor baffle 160 for protecting the rotor is disposed below the graphite sleeve 24, and the rotor baffle 160 is sleeved on the rotor shaft 21.
The rotor baffle 160 of the technical scheme can prevent the graphite sleeve 24 from falling off when the motor runs, thereby damaging the rotor 22 and having the functions of protection and limitation.
Preferably, the upper and lower ends of the rotor 22 are respectively provided with a rotor upper end ring 25 and a rotor lower end ring 26 for compressing the rotor coils.
Preferably, a protective cover 28 with a sealing function is sleeved on the upper end portion of the rotor shaft 21, and a first protective sleeve 29 is clamped on the protective cover 28.
The protective cover 28 and the first protective cover 29 in the technical scheme can fully protect sand in water from entering the motor through the spindle head when the motor is placed in water, and the service life of the motor can be prolonged.
Preferably, a stator 83 is arranged in the stator cavity 81, heat dissipation members 9 are respectively arranged on the upper side and the lower side of the stator 83, and the heat dissipation members 9 are arranged in the sealed cavity 91.
This technical scheme motor starts, and it is the production of heat that the rotor 22 rotational speed reaches rated speed, because stator 83 is the embedment structure, utilizes the strong characteristics of the heat conductivity of solid radiating piece 9 to give off the heat, reaches radiating effect.
Preferably, a groove 51 is formed in the lower bearing seat 5, a water bag baffle plate 52 is installed in the groove 51, a water bag pressing plate 53 is arranged on the water bag baffle plate 52, and a base 54 is arranged at the lower end of the water bag pressing plate 53.
This technical scheme is provided with the waterproof construction of multilayer, can strengthen the sealing performance of motor greatly, prevents to take place because of leaking the condition that leads to the motor to damage.
Example two: as shown in fig. 2 to 3, the present embodiment is substantially the same as the first embodiment, and the difference is that a refrigeration device 10 is disposed in the casing 1, where the refrigeration device 10 includes a box 101 and a first air outlet unit 102, and the box 101 is provided with a heat exchanger for cooling air in the permanent magnet motor 2; the first air outlet unit 102 is disposed at an upper portion of a front side of the cabinet 101 or on a top of the cabinet 101, the first air outlet unit 102 includes a first outlet 103 at the front side and a first air direction control member 104 configured to control a direction of the cool air blown out through the first outlet 103, wherein the first air direction control member 104 controls the cool air blown out through the first outlet 103 to guide the cool air into the cabinet 1 while cooling at least a portion of a space set inside the cabinet 1 to a preset cooling temperature; both sides of the box 101 are provided with an air suction unit 105 and a second air outlet unit 106, and the air suction unit 105 is provided with an inlet 107 and an inlet opening/closing member 108; the second air outlet unit 106 includes a second outlet 109 at a front side and a second air direction control member 110 configured to control a direction of the cool air blown out through the second outlet 109.
According to the technical scheme, the refrigerating device 10 is arranged in the permanent magnet motor 2, heat in the shell 1 is converted out through the heat exchanger and exchanged with external cold air, so that cooling in the shell 1 is realized, and a refrigerating effect is achieved.
Preferably, an exhaust pipe 130 is provided at one side of the refrigerating apparatus 10, and a second check valve 140 for preventing backflow of hot gas is provided at the exhaust pipe 130.
This technical scheme refrigerating plant 10 one side is provided with a blast pipe 130, be provided with a second check valve 140 on the blast pipe 130, the design of second check valve 140 can prevent that steam from passing through blast pipe 130 and getting into, and the heat exchanger can pass through blast pipe 130 with the steam in the casing 1 and discharge to produce cold air, for cooling in the casing 1, the upper end of shown blast pipe 130 sets up on the surface of water, with the air contact.
Example three: as shown in fig. 4-5, the present embodiment is substantially identical to the first embodiment, except that a cavity 92 is formed in a side wall 93 of the sealed chamber 91, a plurality of water pipes 94 penetrating through the cavity 92 are disposed on the side wall 93, one end of the water pipe 94 is located outside the side wall 93, the other end of the water pipe 94 is located inside the sealed chamber 91, and at least one sand-proof filter layer 95 is disposed in the water pipe 94.
This technical scheme water service pipe 94's setting makes the inside good ventilation performance that has had of motor, the heat that the motor produced in the operation process can be discharged effectively, the unable discharge of the inside heat of motor has been solved, inside high temperature leads to the problem that motor normal operating is influenced by serious, thereby guaranteed the long-time normal operating of motor, the sand prevention filter layer 95 in the water service pipe 94 can prevent inside the dust and sand of aquatic entering into the fuselage in addition, the emergence of the inside condition that influences the motor operation of fuselage has been avoided the dust and sand to enter into.
Preferably, the sand control filter layers 95 are two in number and are provided at the inlet and outlet of the water passage pipe 94, respectively.
This technical scheme is provided with the protection motor that double-deck sand prevention filter layer 95 can be better, increases the life of motor.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (7)

1. A novel motor for a water pump is characterized by comprising a machine shell (1), a rotor assembly (2), a shielding sleeve (3), an upper bearing seat (4), a lower bearing seat (5), an upper end cover (6) and a lower end cover (7); the rotor assembly (2) comprises a rotor shaft (21) penetrating into the casing (1), a rotor (22) sleeved on the rotor shaft (21) and a magnetic steel sleeve (23); the upper bearing seat (4) is arranged at the upper end of the upper end cover (6), the lower bearing seat (5) is arranged at the lower end of the lower end cover (7), a cavity (8) is formed among the machine shell (1), the upper end cover (6) and the lower end cover (7), and the cavity (8) comprises a stator cavity (81) and a rotor cavity (82); the shielding sleeve (3) is sleeved in the rotor cavity (82) and the shielding sleeve (3) is sleeved outside the rotor assembly (2); the upper end of the lower bearing seat (5) is arc-shaped, the upper end of the lower bearing seat (5) is provided with a thrust disc (55) matched with the lower bearing seat, an annular groove (56) is formed in the thrust disc (55), a thrust tile (57) which keeps balance and reduces friction is arranged in the annular groove (56), the upper end of the thrust tile (57) is provided with a friction block (58), and the friction block (58) is connected with the rotor assembly (2);
a stator (83) is arranged in the stator cavity (81), heat dissipation pieces (9) are respectively arranged on the upper side and the lower side of the stator (83), and the heat dissipation pieces (9) are arranged in the sealed cavity (91);
a cavity (92) is formed in the side wall (93) of the sealing cavity (91), a plurality of water through pipes (94) penetrating through the cavity (92) are arranged on the side wall (93), one end of each water through pipe (94) is positioned outside the side wall (93), the other end of each water through pipe is positioned in the sealing cavity (91), and at least one sand-proof filter layer (95) is arranged in each water through pipe (94);
the rotor shaft (21) is also sleeved with an oil seal (180) with a sealing effect, and the oil seal (180) is arranged in the upper end cover (6);
a groove (51) is formed in the lower bearing seat (5), a water bag baffle plate (52) is installed in the groove (51), a water bag pressing plate (53) is arranged on the water bag baffle plate (52), and a base (54) is arranged at the lower end of the water bag pressing plate (53);
a first check valve (150) for water inlet is arranged above the machine shell (1), and the first check valve (150) is communicated with the rotor cavity (82); a through hole (190) is formed in the lower bearing seat (5), and the through hole (190) is communicated with the groove (51);
the through hole (190) is positioned at the upper end of the water bag baffle (52), and the through hole (190) is obliquely formed on the lower bearing seat (5).
2. The new electric motor for water pumps as claimed in claim 1, characterized in that the rotor shaft (21) is sheathed with a graphite sleeve (24) for protecting the rotor shaft (21), said graphite sleeve (24) being arranged in the upper bearing block (4).
3. The new type of motor for water pump according to claim 2, characterized in that the upper and lower ends of the rotor (22) are respectively provided with an upper rotor end ring (25) and a lower rotor end ring (26) for compressing the rotor coils.
4. The new type of motor for water pump as claimed in claim 1, characterized in that the upper end of said rotor shaft (21) is covered with a protective cover (28) with sealing function, said protective cover (28) is snap-fitted with a first protective cover (29).
5. The novel motor for the water pump is characterized in that a refrigerating device (10) is arranged in the machine shell (1), the refrigerating device (10) comprises a box body (101) and a first air outlet unit (102), and the box body (101) is provided with a heat exchanger for cooling air in the permanent magnet motor (2); the first air outlet unit (102) is disposed at an upper portion of a front side of the cabinet (101) or on a top of the cabinet (101), the first air outlet unit (102) includes a first outlet (103) at the front side and a first air direction control member (104) configured to control a direction of cool air blown out through the first outlet (103), wherein the first air direction control member (104) controls the cool air blown out through the first outlet (103) to be directed into the cabinet (1) while cooling at least a portion of a space set inside the cabinet (1) to a preset cooling temperature; both sides of the box body (101) are provided with an air suction unit (105) and a second air outlet unit (106), and the air suction unit (105) is provided with an inlet (107) and an inlet opening/closing member (108); the second air outlet unit (106) includes a second outlet (109) at a front side and a second gas direction control member (110) configured to control a direction of the cool air blown out through the second outlet (109).
6. The novel motor for a water pump as claimed in claim 5, wherein an exhaust pipe (130) is provided at one side of the cooling device (10), and a second check valve (140) for preventing backflow of hot gas is provided at the exhaust pipe (130).
7. The new electric motor for water pump according to claim 1, characterized in that the sand control filter layers (95) are two in number and are respectively arranged at the inlet and outlet of the water pipe (94).
CN201811482938.6A 2018-12-05 2018-12-05 Novel motor for water pump Active CN109494922B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811482938.6A CN109494922B (en) 2018-12-05 2018-12-05 Novel motor for water pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811482938.6A CN109494922B (en) 2018-12-05 2018-12-05 Novel motor for water pump

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CN109494922A CN109494922A (en) 2019-03-19
CN109494922B true CN109494922B (en) 2020-09-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110350701B (en) * 2019-06-18 2020-08-11 江苏金丰机电有限公司 High-efficient insulating waterproof epoxy glue embedment motor
CN111697783B (en) * 2020-06-22 2023-03-31 何夏晴 Permanent magnet synchronous motor of magnesium alloy shell submersible pump with built-in controller

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1066306A (en) * 1996-08-12 1998-03-06 Meidensha Corp Totally-enclosed outer fan-cooled motor
CN202971208U (en) * 2012-10-09 2013-06-05 大连四方电泵有限公司 Compound glass fiber coating screening electric pump
CN202931081U (en) * 2012-10-15 2013-05-08 浙江东音泵业股份有限公司 Diving generator inner chamber pressure balancing device for well
CN202889050U (en) * 2012-11-02 2013-04-17 浙江科胜机电有限公司 Submersible motor
CN204967492U (en) * 2015-09-03 2016-01-13 台州谊聚机电有限公司 Immersible pump fills water and electricity machine
CN205956015U (en) * 2016-07-15 2017-02-15 西门子公司 Permanent magnetism canned motor pump

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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A new motor for water pump

Effective date of registration: 20210824

Granted publication date: 20200922

Pledgee: Wenling Branch of Bank of China Ltd.

Pledgor: ZHEJIANG XILING Co.,Ltd.

Registration number: Y2021330001212

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