CN113417878A - Stator-encapsulated hydrogen circulating pump and manufacturing method thereof - Google Patents
Stator-encapsulated hydrogen circulating pump and manufacturing method thereof Download PDFInfo
- Publication number
- CN113417878A CN113417878A CN202110888759.8A CN202110888759A CN113417878A CN 113417878 A CN113417878 A CN 113417878A CN 202110888759 A CN202110888759 A CN 202110888759A CN 113417878 A CN113417878 A CN 113417878A
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- stator
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- shell
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- 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
-
- 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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- 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
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A stator-encapsulated hydrogen circulating pump and a manufacturing method thereof comprise the following steps: the motor part comprises a shell, a partition plate is arranged in the shell and divides the shell into a motor cavity and a controller cavity, and pouring sealant is coated on the outer sides of the stator and the temperature sensor; the controller part comprises a circuit board arranged in a controller cavity, an end cover is arranged on one side of the controller cavity, which is far away from a partition plate, a communicating hole is formed in the partition plate, a threading seat is arranged in the communicating hole, and a three-phase line of the stator passes through the threading seat to be connected with the circuit board; and the supercharger part comprises an impeller arranged on an output shaft of the rotor outside the second bearing seat, and a flow channel cover plate is arranged outside the impeller. The wiring is convenient and fast, and the assembly efficiency is improved; the gas-liquid separator has the advantages of better sealing property, reduction of hydrogen leakage points, basically thorough solution of the hydrogen leakage problem, reduction of the whole volume, space saving and more compact whole structure.
Description
The technical field is as follows:
the invention relates to a stator encapsulation type hydrogen circulating pump and a manufacturing method thereof.
Background art:
the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the reaction of the fuel cell, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, on one hand, energy is wasted, on the other hand, the environment is polluted, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated, and therefore, the hydrogen needs to be recycled.
At present, the hydrogen-containing mixed gas is generally circulated back to a fuel cell by a hydrogen circulating pump for recycling, however, in the working process of the hydrogen circulating pump, part of the hydrogen-containing mixed gas leaks into a motor cavity from a pressurizing cavity, the existing motor cavity has poor sealing performance and a large number of leakage points, hydrogen easily leaks outwards from gaps between a motor end cover and a motor shell and gaps at a junction box of the motor shell to form flammable and explosive danger hazards, particularly, at the junction box, all the coil leading-out wires of a motor coil of the existing hydrogen pump are basically connected with the junction box on the motor shell firstly and then connected with an external controller through the junction box, the wiring mode is not only troublesome in wiring and reduces the efficiency, but also hydrogen leakage points are easily formed at the junction box to increase the potential safety hazard, and the controller is independently arranged outside the hydrogen circulating pump, the additional space occupation leads to the overall structure of the motor not being compact enough.
Therefore, the above problems of the hydrogen circulation pump have become a technical problem to be solved urgently in the industry.
The invention content is as follows:
in order to make up for the defects of the prior art, the invention provides the stator-encapsulated hydrogen circulating pump and the manufacturing method thereof, solves the problem of potential safety hazard caused by hydrogen leakage at the junction box on the motor shell in the prior art, solves the problem of insufficient compactness of the whole structure of the motor caused by the independent arrangement and the extra space occupation of the prior controller, and solves the problems of troublesome wiring and efficiency reduction of the prior junction box.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a stator-encapsulated hydrogen circulation pump comprising:
the motor part comprises a shell, a partition plate is arranged in the shell and divides the shell into a motor cavity and a controller cavity, a stator is installed in the motor cavity, a temperature sensor is arranged in the motor cavity, pouring sealant is coated on the outer sides of the stator and the temperature sensor, a first bearing seat is arranged on one side, close to the motor cavity, of the partition plate, a second bearing seat is installed on one side, far away from the partition plate, of the motor cavity, a rotor is installed between the first bearing seat and the second bearing seat, and an output shaft of the rotor penetrates out of the second bearing seat;
the controller comprises a circuit board arranged in a controller cavity, an end cover is arranged on one side, away from a partition plate, of the controller cavity, a communicating hole is formed in the partition plate, a threading seat is arranged in the communicating hole, a three-phase line of the stator penetrates through the threading seat to be connected with the circuit board, a signal line of the temperature sensor penetrates through the threading seat to be connected with the circuit board, an outer connecting hole is formed in the side wall of the controller cavity, and an outgoing line of the circuit board penetrates through the outer connecting hole to be connected with the outside;
the supercharger part comprises an impeller arranged on an output shaft of the rotor on the outer side of the second bearing seat, a flow channel cover plate is arranged on the outer side of the impeller, and an air inlet and an air outlet are formed in the flow channel cover plate.
The threading seat comprises an elastic rubber seat body, a plurality of threading holes are formed in the elastic rubber seat body, and sealing skirt edges are respectively arranged on two sides of the elastic rubber seat body.
And sealing rings are arranged between the end cover and the shell, between the shell and the second bearing seat and between the second bearing seat and the flow passage cover plate.
The circuit board is installed in the controller cavity through a plurality of installation rods.
The end cover is provided with a plurality of radiating fins.
The partition plate and the shell are integrally formed.
And a plurality of heat dissipation ribs are arranged on the outer surface of the shell corresponding to the motor cavity.
And an anti-corrosion coating is arranged on the inner surface and the outer surface of the shell.
A method for manufacturing a stator-encapsulated hydrogen circulating pump comprises the following steps:
firstly, a stator and a temperature sensor are arranged in a motor cavity of a shell, a threading seat is arranged in a communicating hole of a partition plate, and three-phase lines of the stator and signal lines of the temperature sensor are respectively led out from the threading seat to a controller cavity;
then, a mold is installed in the stator, the mold is used for reserving a space for installing the rotor and forming pouring sealant in the motor cavity, the pouring sealant is poured from the opening side of the motor cavity far away from the partition plate, the stator and the temperature sensor are coated by the pouring sealant, the pouring sealant cannot enter the cavity of the controller due to the plugging of the communicating hole by the threading seat, and the mold is taken out after the pouring sealant is solidified after the pouring sealant is filled;
finally, a rotor and a second bearing seat are installed, an impeller is installed on an output shaft of the rotor on the outer side of the second bearing seat, a flow channel cover plate is installed on the outer side of the impeller, and an air inlet and an air outlet are formed in the flow channel cover plate; and installing a circuit board in the controller cavity, connecting the three-phase line of the stator and the signal line of the temperature sensor with the circuit board, leading out the outgoing line of the circuit board out of the outer connecting hole, and installing an end cover to plug the controller cavity to complete the assembly of the whole hydrogen circulating pump.
By adopting the scheme, the invention has the following advantages:
the shell is divided into the motor cavity and the controller cavity by the partition board, the controller cavity and the motor cavity are integrated in the shell, a conventional junction box is omitted, three-phase lines of the stator and signal lines of the temperature sensor penetrate through the partition board to be connected with a circuit board in the controller cavity, wiring is convenient and rapid, and assembling efficiency is improved; carry out the cladding with stator and temperature sensor through the casting glue, promote anticorrosive and sealing performance, carry out the shutoff through the intercommunicating pore on the threading seat to the baffle, the casting glue can not get into the controller intracavity, and the controller chamber only reserves a very little external connection external power source, the leakproofness is better, hydrogen leakage point has been reduced, avoided terminal box department in the past because of leaking hydrogen and forming the potential safety hazard, the hydrogen leakage problem has basically thoroughly been solved, in addition, with the circuit board integration inside the casing, the whole volume reduces, the space is saved, overall structure is compacter.
Description of the drawings:
fig. 1 is a schematic sectional structure of the present invention.
Fig. 2 is a schematic view of the threading seat structure of the present invention.
In the figure, the motor comprises a shell 1, a shell 2, a partition plate 3, a motor cavity 4, a controller cavity 5, a stator 6, a temperature sensor 7, potting adhesive 8, a first bearing seat 9, a second bearing seat 10, a rotor 11, a circuit board 12, an end cover 13, a threading seat 14, a three-phase line 15, a signal line 16, an external hole 17, an impeller 18, a flow channel cover plate 19, an elastic rubber seat body 20, a threading hole 21, a sealing skirt edge 22, a sealing ring 23, a mounting rod 24, a radiating fin 25 and a radiating rib.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 1-2, a stator-encapsulated hydrogen circulation pump includes:
the motor part comprises a shell 1, a partition plate 2 is arranged in the shell 1, the partition plate 2 divides the shell 1 into a motor cavity 3 and a controller cavity 4, a stator 5 is arranged in the motor cavity 3, a temperature sensor 6 is arranged in the motor cavity 3, pouring sealant 7 is coated on the outer sides of the stator 5 and the temperature sensor 6, the pouring sealant 7 can improve the corrosion resistance and the sealing performance of a rotor, a first bearing seat 8 is arranged on one side, close to the motor cavity 3, of the partition plate 2, a second bearing seat 9 is arranged on one side, far away from the partition plate, of the motor cavity 3, a rotor 10 is arranged between the first bearing seat 8 and the second bearing seat 9, and an output shaft of the rotor 10 penetrates out of the second bearing seat 9;
the controller part comprises a circuit board 11 arranged in a controller cavity 4, an end cover 12 is arranged on one side, away from a partition plate, of the controller cavity 4, a communicating hole is formed in the partition plate 2, a threading seat 13 is arranged in the communicating hole, a three-phase line 14 of the stator penetrates through the threading seat to be connected with the circuit board, a signal line 15 of the temperature sensor penetrates through the threading seat to be connected with the circuit board, wiring is convenient and fast, assembling efficiency is improved, an outer connecting hole 16 is formed in the side wall of the controller cavity, and a leading-out line of the circuit board 11 penetrates through the outer connecting hole 16 to be connected with the outside;
the supercharger part comprises an impeller 17 arranged on an output shaft of the rotor on the outer side of the second bearing block 9, a flow channel cover plate 18 is arranged on the outer side of the impeller 17, and an air inlet and an air outlet are formed in the flow channel cover plate 18.
The heat-conducting pouring sealant 7 is a heat-conducting pouring sealant, the heat-conducting pouring sealant is used for bonding, sealing, encapsulating and coating protection of electronic components, the heat-conducting pouring sealant is in a liquid state before being cured and has fluidity, the viscosity of a glue solution is different according to the material, performance and production process of a product, the use value of the heat-conducting pouring sealant can be realized after the heat-conducting pouring sealant is completely cured, the heat-conducting pouring sealant can play roles in water resistance, moisture resistance, dust prevention, insulation, heat conduction, confidentiality, corrosion resistance, temperature resistance and shock resistance after being cured, and the heat-conducting pouring sealant can also help heat dissipation.
During operation, leak the hydrogen in the motor chamber 3 from the booster, on the one hand by pouring sealant 7 complete shutoff, can not leak controller chamber 4 internal outward leakage from motor chamber 3, another conveniently by the sealing washer 22 shutoff between casing and the second bearing frame, can not leak outward, avoided terminal box department in the past because of leaking hydrogen and form the potential safety hazard, the hydrogen leakage problem has thoroughly been solved basically, the security has been improved greatly, and simultaneously, the corrosion resistance of stator has been promoted greatly, and service life is prolonged.
The threading seat 13 comprises an elastic rubber seat body 19, a plurality of threading holes 20 are formed in the elastic rubber seat body 19, sealing skirt edges 21 are respectively arranged on two sides of the elastic rubber seat body 19, or the sealing skirt edges 21 are arranged on one side, close to the motor cavity 3, of the elastic rubber seat body 19. The elastic rubber seat body 19 is clamped in the communicating hole, the sealing skirt 21 can be matched with the partition plate 2 to play a sealing role, the pouring sealant 7 can be prevented from entering the controller cavity 4, and hydrogen can be prevented from leaking to the controller cavity 4 from the communicating hole.
The circuit board 11 is installed in the controller cavity 4 through a plurality of installation rods 23, and the installation rods 23 are used for supporting, installing and fixing the circuit board 11 inside.
The end cover 12 is provided with a plurality of cooling fins 24 for cooling the controller cavity 4.
The partition board 2 is integrally formed with the shell 1, so that the leakage of hydrogen from the shell can be basically and completely avoided.
The outer surface of the shell corresponding to the motor cavity 3 is provided with a plurality of heat dissipation ribs 25 for dissipating heat of the motor cavity 3.
The inner surface and the outer surface of the shell 1 are provided with anti-corrosion coatings which are corrosion-resistant, so that hydrogen embrittlement and hydrogen corrosion are prevented, and the service life of the shell is prolonged.
A method for manufacturing a stator-encapsulated hydrogen circulating pump comprises the following steps:
firstly, a stator and a temperature sensor are arranged in a motor cavity of a shell, a threading seat is arranged in a communicating hole of a partition plate, and three-phase lines of the stator and signal lines of the temperature sensor are respectively led out from the threading seat to a controller cavity;
then, a mold is installed in the stator, the mold is used for reserving a space for installing the rotor and forming pouring sealant in the motor cavity, the pouring sealant is poured from the opening side of the motor cavity far away from the partition plate, the stator and the temperature sensor are coated by the pouring sealant, the pouring sealant cannot enter the cavity of the controller due to the plugging of the communicating hole by the threading seat, and the mold is taken out after the pouring sealant is solidified after the pouring sealant is filled;
finally, a rotor and a second bearing seat are installed, an impeller is installed on an output shaft of the rotor on the outer side of the second bearing seat, a flow channel cover plate is installed on the outer side of the impeller, and an air inlet and an air outlet are formed in the flow channel cover plate; and installing a circuit board in the controller cavity, connecting the three-phase line of the stator and the signal line of the temperature sensor with the circuit board, leading out the outgoing line of the circuit board out of the outer connecting hole, and installing an end cover to plug the controller cavity to complete the assembly of the whole hydrogen circulating pump.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (9)
1. The utility model provides a stator potting formula hydrogen circulating pump which characterized in that: the method comprises the following steps:
the motor part comprises a shell, a partition plate is arranged in the shell and divides the shell into a motor cavity and a controller cavity, a stator is installed in the motor cavity, a temperature sensor is arranged in the motor cavity, pouring sealant is coated on the outer sides of the stator and the temperature sensor, a first bearing seat is arranged on one side, close to the motor cavity, of the partition plate, a second bearing seat is installed on one side, far away from the partition plate, of the motor cavity, a rotor is installed between the first bearing seat and the second bearing seat, and an output shaft of the rotor penetrates out of the second bearing seat;
the controller comprises a circuit board arranged in a controller cavity, an end cover is arranged on one side, away from a partition plate, of the controller cavity, a communicating hole is formed in the partition plate, a threading seat is arranged in the communicating hole, a three-phase line of the stator penetrates through the threading seat to be connected with the circuit board, a signal line of the temperature sensor penetrates through the threading seat to be connected with the circuit board, an outer connecting hole is formed in the side wall of the controller cavity, and an outgoing line of the circuit board penetrates through the outer connecting hole to be connected with the outside;
the supercharger part comprises an impeller arranged on an output shaft of the rotor on the outer side of the second bearing seat, a flow channel cover plate is arranged on the outer side of the impeller, and an air inlet and an air outlet are formed in the flow channel cover plate.
2. The stator-encapsulated hydrogen circulation pump of claim 1, wherein: the threading seat comprises an elastic rubber seat body, a plurality of threading holes are formed in the elastic rubber seat body, and sealing skirt edges are respectively arranged on two sides of the elastic rubber seat body.
3. The stator-encapsulated hydrogen circulation pump of claim 1, wherein: and sealing rings are arranged between the end cover and the shell, between the shell and the second bearing seat and between the second bearing seat and the flow passage cover plate.
4. The stator-encapsulated hydrogen circulation pump of claim 1, wherein: the circuit board is installed in the controller cavity through a plurality of installation rods.
5. The stator-encapsulated hydrogen circulation pump of claim 1, wherein: the end cover is provided with a plurality of radiating fins.
6. The stator-encapsulated hydrogen circulation pump of claim 1, wherein: the partition plate and the shell are integrally formed.
7. The stator-encapsulated hydrogen circulation pump of claim 1, wherein: and a plurality of heat dissipation ribs are arranged on the outer surface of the shell corresponding to the motor cavity.
8. The stator-encapsulated hydrogen circulation pump of claim 1, wherein: and an anti-corrosion coating is arranged on the inner surface and the outer surface of the shell.
9. The manufacturing method of a stator-encapsulated hydrogen circulation pump according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
firstly, a stator and a temperature sensor are arranged in a motor cavity of a shell, a threading seat is arranged in a communicating hole of a partition plate, and three-phase lines of the stator and signal lines of the temperature sensor are respectively led out from the threading seat to a controller cavity;
then, a mold is installed in the stator, the mold is used for reserving a space for installing the rotor and forming pouring sealant in the motor cavity, the pouring sealant is poured from the opening side of the motor cavity far away from the partition plate, the stator and the temperature sensor are coated by the pouring sealant, the pouring sealant cannot enter the cavity of the controller due to the plugging of the communicating hole by the threading seat, and the mold is taken out after the pouring sealant is solidified after the pouring sealant is filled;
finally, a rotor and a second bearing seat are installed, an impeller is installed on an output shaft of the rotor on the outer side of the second bearing seat, a flow channel cover plate is installed on the outer side of the impeller, and an air inlet and an air outlet are formed in the flow channel cover plate; and installing a circuit board in the controller cavity, connecting the three-phase line of the stator and the signal line of the temperature sensor with the circuit board, leading out the outgoing line of the circuit board out of the outer connecting hole, and installing an end cover to plug the controller cavity to complete the assembly of the whole hydrogen circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888759.8A CN113417878A (en) | 2021-08-03 | 2021-08-03 | Stator-encapsulated hydrogen circulating pump and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110888759.8A CN113417878A (en) | 2021-08-03 | 2021-08-03 | Stator-encapsulated hydrogen circulating pump and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113417878A true CN113417878A (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110888759.8A Pending CN113417878A (en) | 2021-08-03 | 2021-08-03 | Stator-encapsulated hydrogen circulating pump and manufacturing method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN113417878A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922555A (en) * | 2021-10-11 | 2022-01-11 | 珠海格力电器股份有限公司 | Motor end cover assembly, stator assembly and motor |
| CN114513906A (en) * | 2022-01-29 | 2022-05-17 | 烟台东德实业有限公司 | Installation method of hydrogen pump controller PCB |
| CN114825748A (en) * | 2022-04-24 | 2022-07-29 | 烟台东德实业有限公司 | Outgoing line sealing structure of hydrogen circulating pump motor |
| DE102021214468A1 (en) | 2021-12-15 | 2023-06-15 | Robert Bosch Gesellschaft mit beschränkter Haftung | Pump, motor unit and method of manufacturing the motor unit |
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| CN110601400A (en) * | 2019-09-18 | 2019-12-20 | 深圳市泉胜精密科技有限公司 | Oil immersion type integrated permanent magnet brushless direct current motor |
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| CN111836946A (en) * | 2018-03-13 | 2020-10-27 | 尼得科Gpm有限公司 | Modular system of axially integrated pump structure |
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| JP2005110478A (en) * | 2003-10-02 | 2005-04-21 | Aisan Ind Co Ltd | Motor and pump |
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| CN111836946A (en) * | 2018-03-13 | 2020-10-27 | 尼得科Gpm有限公司 | Modular system of axially integrated pump structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922555A (en) * | 2021-10-11 | 2022-01-11 | 珠海格力电器股份有限公司 | Motor end cover assembly, stator assembly and motor |
| DE102021214468A1 (en) | 2021-12-15 | 2023-06-15 | Robert Bosch Gesellschaft mit beschränkter Haftung | Pump, motor unit and method of manufacturing the motor unit |
| CN114513906A (en) * | 2022-01-29 | 2022-05-17 | 烟台东德实业有限公司 | Installation method of hydrogen pump controller PCB |
| CN114825748A (en) * | 2022-04-24 | 2022-07-29 | 烟台东德实业有限公司 | Outgoing line sealing structure of hydrogen circulating pump motor |
| CN114825748B (en) * | 2022-04-24 | 2023-12-22 | 烟台东德实业有限公司 | Hydrogen circulating pump motor sealing structure that is qualified for next round of competitions |
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