CN108005915B - Electric high-pressure pump - Google Patents
Electric high-pressure pump Download PDFInfo
- Publication number
- CN108005915B CN108005915B CN201810034422.9A CN201810034422A CN108005915B CN 108005915 B CN108005915 B CN 108005915B CN 201810034422 A CN201810034422 A CN 201810034422A CN 108005915 B CN108005915 B CN 108005915B
- Authority
- CN
- China
- Prior art keywords
- main shaft
- pressure pump
- electric high
- rear end
- housing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- 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
- F04D13/0673—Units comprising pumps and their driving means the pump being electrically driven the motor being of the inside-out type
-
- 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
- F04D13/0606—Canned motor pumps
-
- 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
- F04D13/0693—Details or arrangements of the wiring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An electric high-pressure pump comprises a pump shell, a coil, a main shaft and a rotary drum, wherein the coil is annularly arranged on the outer side of the installation cylinder; the front end of the main shaft is provided with a water flow stirring mechanism capable of driving the water flow, the middle part of the main shaft is sleeved with a water seal assembly, the rear end of the main shaft axially extends out of the mounting cylinder, and the stirring mechanism is positioned in a working cavity of the pump shell; the rotary drum comprises a rotary disc and a drum body extending forwards from the rotary disc, the rotary disc is connected with the rear end of the main shaft and can drive the main shaft to rotate together, the drum body is positioned at the outer side of the coil, and the inner wall of the drum body is provided with a magnet. The motor and the pump body are organically combined together, so that the size is reduced, the motor is more compact, the noise is greatly reduced, and the overall manufacturing cost is also greatly reduced.
Description
Technical Field
The utility model relates to a pump which can be applied to equipment such as a water dispenser, a water purifier, a solar water heater, a foot bath device and the like.
Background
The existing basic structure of the water pump comprises a motor and a pump body, wherein the motor is provided with an output shaft, an impeller is arranged in the pump body, the output shaft of the motor is connected with a main shaft of the impeller through a coupling, the output shaft drives the impeller to apply work to a water body after the motor is electrified, the motor and the pump body are arranged separately, the structure is loose, the whole size is large, the noise is relatively loud, and the whole manufacturing cost is high.
For this reason, some designs of combining a body and a motor have been developed, see chinese patent application publication No. 201110312624.3 for a micro pump for foot bath (application publication No. CN102322437 a), in which an impeller is directly mounted on a rotating shaft, and simultaneously, the motor and a pump body are combined into a whole, so that the structure is compact, and the volume is greatly reduced.
Similarly, reference may be made to the chinese utility model patent No. ZL201220174086.6, a water pump (grant bulletin No. CN 202659517U).
See also the Chinese patent No. ZL201110228682.8, "permanent magnet Motor drain Pump" (issued with publication No. CN 102297143B).
The above-mentioned publication is more compact in structure, but since the rotor is provided inside the pump body, the rotor cannot be made large, so that the output is difficult to be made large, and is relatively limited, and there is room for improvement.
Disclosure of Invention
The technical problem to be solved by the present utility model is to provide an electric high-pressure pump with a compact structure.
Another technical problem to be solved by the utility model is to provide an electric high-pressure pump which has a compact structure and can be powered up.
Another technical problem to be solved by the present utility model is to provide an electric high-pressure pump with low manufacturing cost.
Another technical problem to be solved by the present utility model is to provide a thinned electric high-pressure pump.
The technical scheme adopted for solving the technical problems is as follows: an electric high pressure pump comprising
The pump shell is provided with a working cavity, a water inlet port and a water outlet port which are communicated with the working cavity, and a mounting cylinder body is axially outwards protruded at one side of the pump shell;
the coil is annularly arranged outside the installation cylinder body;
the main shaft is rotatably arranged in the pump shell, the front end of the main shaft is provided with a water flow stirring mechanism capable of driving, the middle part of the main shaft is sleeved with a water seal assembly, the rear end of the main shaft axially extends out of the mounting cylinder, and the stirring mechanism is positioned in the working cavity of the pump shell; and
the rotary drum comprises a rotary disc and a drum body extending forwards from the rotary disc, the rotary disc is connected with the rear end of the main shaft and can drive the main shaft to rotate together, the drum body is positioned outside the coil, the inner wall of the drum body is provided with a magnet, and a gap is reserved between the magnet and the coil.
Further, a shell is arranged on the outer side of the installation cylinder body, and the rotary cylinder is positioned in the shell, and a gap is formed between the outer side of the rotary cylinder and the inner wall of the shell.
Further, the lower end of the shell is provided with a base.
The shell comprises a cylindrical body and an end cover arranged on one side of the body.
The mounting mode of the magnet is preferably set as follows: the inner wall of the rotary cylinder is provided with a first bracket and a second bracket at intervals, and the plurality of magnets are arranged between the first bracket and the second bracket.
Further, the first support comprises a first annular ring and a plurality of first spacing teeth extending forwards from the first annular ring, the second support comprises a second annular ring and a plurality of second spacing teeth extending forwards from the second annular ring, one end of each magnet is positioned between the adjacent first spacing teeth, and the other end of each magnet is positioned between the adjacent second spacing teeth.
Preferably, the mounting cylinder and the pump casing are integrally formed, but the mounting cylinder and the pump casing can be separate parts and assembled into a whole.
The water seal assembly comprises a stop ring, a spring, a water seal piece, a ceramic ring and a rubber ring, wherein the front end of the spring is propped against the rear end face of the stop ring, the rear end of the spring is propped against the front end face of the water seal piece, the ceramic ring is propped against the rear end face of the water seal piece, and the rubber ring is sleeved on the outer side of the ceramic ring. The stop ring, the spring and the water seal piece realize dynamic seal, and the ceramic ring and the rubber ring are matched to realize static seal.
The stirring mechanism preferably comprises a plurality of sector blocks radially extending from the front end of the main shaft, a setting gap formed between the sector blocks, a front cover, a wear-resistant block, a rear cover and a plurality of blades, wherein the rear end surface of the front cover is provided with a front notch groove, the front end of the rear cover is provided with a rear notch groove, the front cover and the rear cover are respectively sleeved at the front end of the main shaft and are respectively positioned at the front end and the rear end of the sector block, the wear-resistant block is positioned between the front cover and the rear cover and is sleeved at the periphery of the sector block, an eccentric hole for setting the sector block is formed in the middle of the wear-resistant block, and the blades are arranged in the setting gap between the sector blocks and can radially move.
Further, the rear end of the installation cylinder body is provided with a bearing, and the main shaft is in running fit with the bearing.
Compared with the prior art, the utility model has the advantages that: after the coil is powered on, the magnet drives the rotary drum and the main shaft to rotate together, so that the stirring mechanism works to do work on the water body in the pump shell, the motor and the pump body are organically combined together, an output shaft of the motor, bearings at two ends of the output shaft and a fan cooling structure of the motor are omitted, the size is reduced, a thin design can be realized, and the application field is expanded; the rotor formed by the magnet and the rotary drum is positioned at the outer side of the coil, and the diameter of the rotary drum is larger than that of a common rotor, so that the magnet can be distributed in a plurality of poles, and the improvement of the operation power is facilitated; the heat generated by the coil in the working state is conducted to the installation cylinder body, and then the heat on the installation cylinder body is rapidly taken away through fluid flowing in the pump shell, so that the coil can work stably for a long time; and because the rotating parts are reduced, the device is more compact, the noise is greatly reduced, and the whole manufacturing cost is also greatly reduced.
Drawings
Fig. 1 is a schematic view of an embodiment.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is an enlarged cross-sectional view of an embodiment.
Fig. 4 is an enlarged schematic view of the main shaft portion of the pump housing of fig. 3.
Fig. 5 is a partially exploded view of fig. 4.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1, 2 and 3, the electric high-pressure pump in the present embodiment includes a pump housing 1, a coil 5, a main shaft 6, a rotary cylinder 3 and a casing 2, the pump housing 1 has a working chamber, a water inlet 11 and a water outlet 12 communicating with the working chamber, and a mounting cylinder 13 protrudes axially outwards from one side of the pump housing 1; the rear end of the mounting cylinder 13 is provided with a bearing 76, and the mounting cylinder 13 is integrally formed with the pump housing 1, but may be a separate piece, and then assembled as a unit.
The coil 5 is annularly arranged outside the mounting cylinder 13 through a coil bracket 51; the main shaft 6 is in rotary fit with the bearing 76, the main shaft 6 is rotatably arranged in the pump shell 1, the front end of the main shaft is provided with a stirring mechanism 8 capable of driving water flow, the middle part of the main shaft is sleeved with a water seal assembly 7, the rear end of the main shaft axially extends out of the mounting cylinder 13, and the stirring mechanism 8 is positioned in a working cavity of the pump shell 1.
The rotary drum 3 includes a rotary disk 32 and a cylindrical body 31 extending forward from the rotary disk 32, the rotary disk 32 is connected to the rear end of the spindle 6 and drives the spindle 6 to rotate together, the cylindrical body 31 is located outside the coil 5, and a magnet 4 is provided on the inner wall of the cylindrical body 31 with a gap between the magnet 4 and the coil 5.
The housing 2 is provided outside the mounting cylinder 13, and the rotary cylinder 3 is provided inside the housing 2 with a gap between the outside and the inner wall of the housing 2. The lower end of the housing 2 is provided with a base 24. The housing 2 in this embodiment includes a cylindrical body 21 and an end cap 22 provided on one side of the body 21, and the body 21 and the end cap 22 are fixedly connected by bolts 23.
The magnet is arranged as follows: the inner wall of the rotary cylinder 3 is provided with a first bracket 41 and a second bracket 42 at intervals, and a plurality of magnets 4 are arranged between the first bracket 41 and the second bracket 42. Specifically, the first bracket 41 includes a first annular ring 411 and a plurality of first spaced teeth 412 extending forward from the first annular ring 411, the second bracket 42 includes a second annular ring 421 and a plurality of second spaced teeth 422 extending forward from the second annular ring 421, the first spaced teeth 412 and the second spaced teeth 422 are disposed correspondingly, one end of each magnet 4 is positioned between adjacent first spaced teeth 412, and the other end is positioned between adjacent second spaced teeth 422. To improve the firmness, the inner wall of the rotary cylinder 3 can be coated with adhesive.
As shown in fig. 4 and 5, the water seal assembly 7 in this embodiment includes a stop ring 71, a spring 72, a water seal member 73, a ceramic ring 74 and a rubber ring 75, the front end of the spring 72 abuts against the rear end face of the stop ring 71, the rear end abuts against the front end face of the water seal member 73, the ceramic ring 74 abuts against the rear end face of the water seal member 73, the rubber ring 75 is sleeved on the outer side of the ceramic ring 74, and a gasket 77 is further arranged on one side of the rubber ring 75 and one side of the ceramic ring 74.
As shown in fig. 4 and 5, the front end of the main shaft 6 is radially extended with a plurality of segments 61, a setting gap 62 is formed between the segments 61, and the agitation mechanism 8 includes a front cover 81, a wear-resistant block 82, a rear cover 83, and a plurality of blades 84, and the front cover 81 and the rear cover 83 are connected by a positioning pin 86. The rear end face of the front cover 81 is provided with a front notch groove 811, the front end of the rear cover 83 is provided with a rear notch groove 812, the front cover 81 and the rear cover 83 are respectively sleeved at the front end of the main shaft 6 and are respectively positioned at the front end and the rear end of the sector block 61, the wear-resistant block 82 is positioned between the front cover 81 and the rear cover 83 and sleeved at the periphery of the sector block 61, the middle part of the wear-resistant block 82 is provided with an eccentric hole 821 for the sector block 61 to set, the blade 84 is arranged in the setting gap 62 between the sector blocks 61 and can move radially, and the blade 84 is limited by the positioning needle 85. The main shaft 6 rotates to drive the fan-shaped block 61 to rotate, the blades 84 axially move, so that the water flow is acted, and the front notch groove 811 and the rear notch groove 812 can work on the water flow in cooperation with the blades 84, so that pressurization is realized. The front cover 81, the wear-resistant block 82 and the rear cover 83 in this embodiment are all made of graphite. The wear block 82 made of graphite is also called a graphite chamber.
The output shaft, the bearing and the fan cooling structure of the motor part in the traditional water pump are omitted, the assembly is simpler, the volume is more compact, the vibration is smaller, the noise is lower, and the manufacturing cost is greatly reduced; the rotor is located the coil outside with the rotary drum constitution rotor, and the rotary drum is bigger than ordinary rotor diameter for magnet can distribute very multipolar, ensures when the volume reduces, and output can do higher. And heat generated by the coil in the working state is conducted to the installation cylinder body, and then the heat on the installation cylinder body is rapidly taken away through fluid flowing in the pump shell, so that the coil can work stably for a long time. Can be applied to the equipment such as water dispensers, water purifiers, solar water heaters, beverage on-site adjusting machines, high-pressure flushing machines, industrial water pumps, dish washers, foot baths and the like.
Claims (9)
1. An electric high-pressure pump is characterized by comprising
The pump shell (1) is provided with a working cavity, a water inlet port (11) and a water outlet port (12) which are communicated with the working cavity, and a mounting cylinder (13) is axially outwards protruded at one side of the pump shell (1);
a coil (5) which is annularly arranged outside the installation cylinder;
a main shaft (6) rotatably arranged in the pump shell (1) and provided with a stirring mechanism (8) capable of driving water flow at the front end, a water seal assembly (7) is sleeved at the middle part, the rear end axially extends out of the mounting cylinder (13), and the stirring mechanism (8) is positioned in a working cavity of the pump shell (1); and
a rotary drum (3) comprising a rotary disk (32) and a cylindrical body (31) extending forward from the rotary disk (32), wherein the rotary disk (32) is connected with the rear end of the main shaft (6) and can drive the main shaft (6) to rotate together, the cylindrical body (31) is positioned outside the coil (5), the inner wall of the cylindrical body (31) is provided with a magnet (4), and a gap is formed between the magnet (4) and the coil (5);
the front end of the main shaft (6) radially extends to form a plurality of sector blocks (61), a placement gap (62) is formed between the sector blocks (61), the stirring mechanism (8) comprises a front cover (81), a wear-resistant block (82), a rear cover (83) and a plurality of blades (84), a front notch groove (811) is formed in the rear end face of the front cover (81), a rear notch groove (812) is formed in the front end of the rear cover (83), the front cover (81) and the rear cover (83) are respectively sleeved on the front end of the main shaft (6) and are respectively located at the front end and the rear end of the sector blocks (61), the wear-resistant block (82) is located between the front cover (81) and the rear cover (83) and sleeved on the periphery of the sector blocks (61), eccentric holes (821) are formed in the middle of the wear-resistant block (82) and are formed in the placement gap (62) between the sector blocks (61) and can radially move.
2. An electric high-pressure pump according to claim 1, characterized in that a housing (2) is provided outside the mounting cylinder (13), and the rotating cylinder (3) is located inside the housing (2) with a gap between the outside and the inner wall of the housing (2).
3. An electric high-pressure pump according to claim 2, characterized in that the lower end of the housing (2) is provided with a seat (24).
4. An electric high-pressure pump according to claim 2, characterized in that the housing (2) comprises a cylindrical body (21) and an end cap (22) provided on one side of the body (21).
5. The electric high-pressure pump according to claim 1, characterized in that a first bracket (41) and a second bracket (42) are arranged on the inner wall of the rotary cylinder (3) at intervals, and the magnets (4) are a plurality of pieces and are arranged between the first bracket (41) and the second bracket (42).
6. The electric high-pressure pump according to claim 5, characterized in that said first bracket (41) comprises a first annular ring (411) and a plurality of first spacing teeth (412) extending forward from the first annular ring (411), said second bracket (42) comprises a second annular ring (421) and a plurality of second spacing teeth (422) extending forward from the second annular ring (421), said first spacing teeth (412) and second spacing teeth (422) are disposed in correspondence, one end of each magnet (4) is positioned between adjacent first spacing teeth (412), and the other end is positioned between adjacent second spacing teeth (422).
7. An electric high-pressure pump according to claim 1, characterized in that the mounting cylinder (13) is formed integrally with the pump housing (1), or that the mounting cylinder (13) is formed as a separate piece and assembled integrally with the pump housing (1).
8. The electric high-pressure pump as claimed in claim 1, wherein the water seal assembly (7) comprises a stop ring (71), a spring (72), a water seal member (73), a ceramic ring (74) and a rubber ring (75), the front end of the spring (72) is abutted against the rear end face of the stop ring (71), the rear end is abutted against the front end face of the water seal member (73), the ceramic ring (74) is abutted against the rear end face of the water seal member (73), and the rubber ring (75) is sleeved outside the ceramic ring (74).
9. An electric high-pressure pump according to claim 1, characterized in that the rear end of the mounting cylinder (13) is provided with a bearing (76), and the main shaft (6) is in a running fit with the bearing (76).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810034422.9A CN108005915B (en) | 2018-01-15 | 2018-01-15 | Electric high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810034422.9A CN108005915B (en) | 2018-01-15 | 2018-01-15 | Electric high-pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005915A CN108005915A (en) | 2018-05-08 |
| CN108005915B true CN108005915B (en) | 2023-09-26 |
Family
ID=62050251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810034422.9A Active CN108005915B (en) | 2018-01-15 | 2018-01-15 | Electric high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005915B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832275A (en) * | 2010-04-07 | 2010-09-15 | 福建天工电机有限公司 | Water-cooling centrifugal water pump |
| CN104410182A (en) * | 2014-10-13 | 2015-03-11 | 三禾电器(福建)有限公司 | Electric pump |
| CN207715387U (en) * | 2018-01-15 | 2018-08-10 | 宁波拓尔电机有限公司 | Electric high pressure pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4293207B2 (en) * | 2006-07-21 | 2009-07-08 | 株式会社日立製作所 | Electric pump |
-
2018
- 2018-01-15 CN CN201810034422.9A patent/CN108005915B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832275A (en) * | 2010-04-07 | 2010-09-15 | 福建天工电机有限公司 | Water-cooling centrifugal water pump |
| CN104410182A (en) * | 2014-10-13 | 2015-03-11 | 三禾电器(福建)有限公司 | Electric pump |
| CN207715387U (en) * | 2018-01-15 | 2018-08-10 | 宁波拓尔电机有限公司 | Electric high pressure pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108005915A (en) | 2018-05-08 |
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Effective date of registration: 20240313 Address after: Qiao Li Village, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province (No. 1269 Mingshu Road) Patentee after: Ningbo Tuoxin Intelligent Transmission Co.,Ltd. Country or region after: China Address before: 315191 No. 1269 Ming Shu Road, Jiangshan Town, Yinzhou District, Ningbo, Zhejiang Patentee before: NINGBO TWIRL MOTOR Co.,Ltd. Country or region before: China |