CN113691064A - Special motor for hydrogen fuel cell - Google Patents

Special motor for hydrogen fuel cell Download PDF

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Publication number
CN113691064A
CN113691064A CN202111005301.XA CN202111005301A CN113691064A CN 113691064 A CN113691064 A CN 113691064A CN 202111005301 A CN202111005301 A CN 202111005301A CN 113691064 A CN113691064 A CN 113691064A
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CN
China
Prior art keywords
end cover
cover assembly
rotating shaft
fuel cell
hydrogen fuel
Prior art date
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Pending
Application number
CN202111005301.XA
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Chinese (zh)
Inventor
张�成
贺付杰
王晓
宋锦锦
王毅
李健伟
王成
李文洋
张佳玮
王翔宇
杨增玉
李希耀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Lijiu Motor Technology Co Ltd
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Qingdao Lijiu Motor Technology Co Ltd
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Publication date
Application filed by Qingdao Lijiu Motor Technology Co Ltd filed Critical Qingdao Lijiu Motor Technology Co Ltd
Priority to CN202111005301.XA priority Critical patent/CN113691064A/en
Publication of CN113691064A publication Critical patent/CN113691064A/en
Pending legal-status Critical Current

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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
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • 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
    • 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
    • H02K5/10—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
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel Cell (AREA)

Abstract

The application relates to a special motor for a hydrogen fuel cell, which comprises a stator, a rotor, an end cover assembly, a non-shaft extension end cover, a junction box, a connecting disc, a water inlet pipe, a water outlet pipe and the like, wherein a shell is used as one part of the stator and plays roles of fixing and supporting; the rotor is provided with a rotating shaft, and the connecting disc is assembled on the rotating shaft in an interference manner and is connected with a load to transmit torque. An electric lead connector is arranged in the junction box, an end cover assembly is arranged at one end, away from the electric lead connector, of the casing, a plurality of mounting holes are formed in the end cover assembly, an avoiding hole penetrating through the end cover assembly is formed in the end cover assembly, and the avoiding hole is opposite to the end portion of the main rotating shaft. According to the structure of different air compressors, select the end cover assembly of isostructure, shape, with the mutual adaptation of structure of air compressor machine, screw up the bolt on air compressor machine and end cover assembly through the mounting hole, make nimble the installing on different air compressors of motor to satisfy different air compressors and customer's demand, this application has the effect that improves motor installation application scope.

Description

Special motor for hydrogen fuel cell
Technical Field
The application relates to the field of hydrogen fuel cells, in particular to a special motor for a hydrogen fuel cell.
Background
The special motor for the hydrogen fuel cell is a novel high-rotating-speed permanent magnet variable frequency motor which is developed aiming at an air system assembly of a hydrogen fuel cell system and is integrated with the air system assembly, so that the perfect connection of the motor and the air system assembly is realized. The special motor for the hydrogen fuel cell has the advantages of stable performance, high efficiency, large power density, small volume, long service life, high rotating speed, strong installation adaptability and the like.
The existing Chinese patent with publication number CN210461110U discloses a special direct-drive high-speed centrifugal air compressor for a vehicle-mounted hydrogen fuel cell, which is driven by a motor and comprises a hollow motor main shaft, an impeller pull rod, a volute, an end cover, a motor rotor, a motor stator and a baffle plate, wherein the motor main shaft is supported in a simply supported beam structure form, the impeller pull rod is arranged at two ends of the motor main shaft, the impeller is connected with the impeller pull rod, the volute is positioned in the impeller, the end cover is connected with the volute, the motor rotor is arranged on the motor main shaft, the motor stator is arranged outside the motor rotor, and the baffle plate is arranged at two sides of the motor rotor.
In view of the above-mentioned correlation technique, the inventor thinks that the high-speed centrifugal air compressor is directly driven to above-mentioned special hydrogen fuel cell of on-vehicle has solved the yielding problem of rotor tremble, nevertheless because the special high-speed centrifugal air compressor of directly driving of above-mentioned special hydrogen fuel cell of on-vehicle hydrogen fuel cell passes through the special motor of hydrogen fuel cell and drives, and the special motor of hydrogen fuel cell needs to use with the air compressor machine supporting of different specifications again, accords with customer's demand, because the appearance structure of traditional special motor of hydrogen fuel cell is single, causes the installation application scope to different series of air compressors less.
Disclosure of Invention
In order to make the nimble installation of special motor of hydrogen fuel cell, satisfy different air compressors and customer's demand, improve installation application scope, this application provides a special motor of hydrogen fuel cell.
The application provides a special motor of hydrogen fuel cell adopts following technical scheme:
the utility model provides a special motor of hydrogen fuel cell, which comprises a housing, the casing internal rotation is connected with main axis of rotation, set firmly the rotor of arranging the casing inside in the main axis of rotation, connection pad interference fit is in main axis of rotation, set firmly the stator of fixing on the casing in the casing, the non-axle is installed and is stretched end cover in the rear end of casing, be fixed with the terminal box on the non-axle stretches end cover, be equipped with electrical lead connector on the terminal box, the one end that electrical lead connector was kept away from to the casing is equipped with the end cover assembly, a plurality of mounting holes have been seted up on the end cover assembly, set up the hole of dodging that runs through the end cover assembly in the end cover assembly, the hole of dodging is just to the tip of main axis of rotation.
Through adopting above-mentioned technical scheme, the circular telegram of electrical lead joint, through the principle of electricity magnetism, stator and rotor are mutually supported the motion, it rotates to drive main axis of rotation, the end cover assembly plays the effect of fixed casing and air compressor machine, according to the structure of different air compressors, select different structures, the end cover assembly of shape, with the mutual adaptation of structure of air compressor machine, screw up the bolt on air compressor machine and end cover assembly through the mounting hole, the position of fixed motor, main axis of rotation stretches out from dodging hole department simultaneously, realize being connected between motor and the air compressor machine, make the nimble installation of motor on different air compressors, in order to satisfy different air compressors and customer's demand, the effect that has improvement motor installation application scope.
Optionally, the end face of the end cover assembly is square, and the end portion of the main rotating shaft extends outwards from the avoiding hole.
Through adopting above-mentioned technical scheme, the end cover assembly of square shape, make things convenient for the operator to install the motor on firm the installing at general air compressor machine, this type of air compressor machine does not have specific requirement to the mounted position of motor, the operator only needs to install the location tang on the end cover assembly with the air compressor machine cooperation, screw up the end cover assembly on the casing through the bolt, pass the mounting hole with the bolt again, screw up the end cover assembly on the air compressor machine, realize the stable connection between motor and the air compressor machine, main axis of rotation stretches out from dodging downtheholely, make things convenient for the power transmission between main axis of rotation and the air compressor machine more.
Optionally, the end face of the end cover assembly is hexagonal, the end cover assembly is horizontally distributed, and the end portion of the main rotating shaft is arranged in the avoiding hole.
Through adopting the above-mentioned technical scheme, the end cover assembly is the level form, be applicable to the fixed motor of horizontal installation, it is the poroid of waist type to dodge the hole simultaneously, it also is the distribution of level form to dodge the hole, the length direction who dodges the hole is unanimous each other with the length direction of end cover assembly, all be fit for the horizontally installation of motor, the end cover assembly adopts the shop bolt location with the air compressor machine, the operator only needs to screw up the end cover assembly on the casing through the bolt, pass the mounting hole with the bolt again, screw up the end cover assembly on the air compressor machine, realize horizontally stable connection between motor and the air compressor machine, main axis of rotation is arranged in and is dodged downtheholely, make things convenient for the power transmission between main axis of rotation and the air compressor machine more.
Optionally, the end face of the end cover assembly is hexagonal, the end cover assembly is vertically distributed, and the end portion of the main rotating shaft is arranged in the avoiding hole.
Through adopting above-mentioned technical scheme, the end cover assembly is vertical form, be applicable to the fixed motor of vertical installation, it is waist type poroid to dodge the hole simultaneously, it also is vertical form distribution to dodge the hole, the length direction who dodges the hole is unanimous each other with the length direction of end cover assembly, all be fit for the vertical installation of motor, the end cover assembly adopts the shop bolt location with the air compressor machine, the operator only needs to screw up the end cover assembly on the casing through the bolt, pass the mounting hole with the bolt again, screw up the end cover assembly on the air compressor machine, realize vertical stable connection between motor and the air compressor machine, main axis of rotation is arranged in and is dodged downtheholely, make things convenient for the power transmission between main axis of rotation and the air compressor machine more.
Optionally, the end face of the end cover assembly is in a racket shape, a lower connecting hole is formed in the end cover assembly, and the end portion of the main rotating shaft extends out of the avoiding hole.
Through adopting above-mentioned technical scheme, being connected between end cover assembly and the air compressor machine, the operator screws up the bolt in the mounting hole, fastens end cover assembly and casing, screws up the bolt in connecting hole down again, realizes being connected down between motor and the air compressor machine, and main axis of rotation stretches out in dodging the hole, makes things convenient for the power transmission between main axis of rotation and the air compressor machine more.
Optionally, the end face of the end cover assembly is in a racket shape, one side of the end cover assembly is provided with a side connecting hole, and the end part of the main rotating shaft extends outwards from the avoiding hole.
Through adopting above-mentioned technical scheme, the side of end cover assembly is arranged in to the side connecting hole, realizes being connected between end cover assembly and the air compressor machine through the side connecting hole, and the operator screws up the bolt in the mounting hole, fastens end cover assembly and casing, screws up the bolt in the side connecting hole again, realizes that the side between motor and the air compressor machine is connected, and main axis of rotation stretches out in dodging the hole from, makes things convenient for the power transmission between main axis of rotation and the air compressor machine more.
Optionally, a cooling cavity is formed in the casing, a water inlet pipe and a water outlet pipe are fixedly arranged on the outer side of the casing, and the water inlet pipe, the cooling cavity and the water outlet pipe are sequentially communicated.
Through adopting above-mentioned technical scheme, hydrogen fuel cell special motor has the fast advantage of rotational speed, consequently at the in-process that uses, can produce a large amount of heats, and in cooling cavity was arranged in to water this moment, through the water-cooling mode of circulation, from inlet tube input cold water, from outlet pipe outflow hot water, with the inside heat of motor being taken out, carries out the water-cooling heat dissipation, and when the high efficiency was refrigerated, the life of motor was guaranteed.
Optionally, a seal ring is sleeved on the main rotating shaft, and the seal ring is arranged in the casing and connected with the end cover assembly.
Through adopting above-mentioned technical scheme, the special motor of hydrogen fuel cell has the advantage of stable performance, consequently rotates the leakproofness of being connected that needs further to improve in main axis of rotation and end cover assembly rotation position department, through the setting of sealing washer this moment, prevents inside fluid and other debris get into the motor, the effectual leakproofness of guaranteeing the motor.
Optionally, the sealing ring is in a double-lip reverse spiral shape.
Through adopting above-mentioned technical scheme, through the screw thread setting of two opposite directions of turning to, guarantee that the sealing washer prevents at main axis of rotation pivoted in-process that take place gas and debris from getting into inside the motor, further optimize and guarantee the leakproofness of motor.
Optionally, the inner side spiral of the sealing ring is made of a metal material, and the outer side bolt of the sealing ring is made of a rubber material.
Through adopting above-mentioned technical scheme, inboard metal material plays the effect of strengthening the sealing washer bulk strength, guarantees the stability of sealing washer, and the rubber material in the outside plays the effect that improves the elasticity in the sealing washer outside, has improved the holistic buffering of sealing washer and deformation volume, further cooperates the metal material, improves the leakproofness of motor jointly.
In summary, the present application includes at least one of the following beneficial technical effects:
the electric lead connector is electrified, the stator and the rotor are mutually matched and move through electromagnetic induction through the principle of electromagnetism generation to drive the main rotating shaft to rotate, the end cover assembly plays a role of fixing the shell and the air compressor, the end cover assemblies with different structures and shapes are selected according to the structures of different air compressors and are mutually matched with the structures of the air compressor, bolts are screwed on the air compressor and the end cover assembly through the mounting holes, the position of the motor is fixed, meanwhile, the main rotating shaft extends out of the avoidance hole, connection between the motor and the air compressor is realized, the motor is flexibly mounted on different air compressors to meet the requirements of different air compressors and customers, and the electric lead connector has the effect of improving the application range of motor mounting;
the special motor for the hydrogen fuel cell has the advantage of high rotating speed, so that a large amount of heat can be generated in the use process, at the moment, water is placed in the cooling cavity, cold water is input from the water inlet pipe and hot water flows out from the water outlet pipe in a circulating water cooling mode, the heat in the motor is taken out, water cooling heat dissipation is carried out, and the service life of the motor is ensured while high-efficiency cooling is realized;
the special motor for the hydrogen fuel cell has the advantage of stable performance, so that the rotary connection sealing performance is further improved at the position where the main rotary shaft is connected with the end cover assembly in a rotating mode, the oil and other sundries are prevented from entering the motor through the arrangement of the sealing ring, and the sealing performance of the motor is effectively guaranteed.
Drawings
Fig. 1 is a schematic overall structure diagram of a first embodiment of the present application.
Fig. 2 is a longitudinal sectional view of the first embodiment of the present application.
Fig. 3 is a schematic structural diagram of a seal ring according to a first embodiment of the present application.
Fig. 4 is a schematic overall structure diagram of the second embodiment of the present application.
Fig. 5 is a schematic overall structure diagram of a third embodiment of the present application.
Fig. 6 is a schematic overall structure diagram of a fourth embodiment of the present application.
Fig. 7 is a schematic overall structure diagram of a fifth embodiment of the present application.
Description of reference numerals: 1. a housing; 11. cooling the cavity; 12. a water inlet pipe; 13. a water outlet pipe; 2. a main rotating shaft; 21. a seal ring; 3. a rotor; 4. a stator; 5. an end cap assembly; 51. mounting holes; 52. avoiding holes; 53. a lower connection hole; 54. a side connection hole; 6. an electrical lead connector; 7. a connecting disc; 8. a non-shaft end cap; 9. a junction box.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses a special motor for a hydrogen fuel cell.
Referring to fig. 1 and 2, a motor dedicated for a hydrogen fuel cell includes a housing 1, a main rotating shaft 2 rotatably connected to the housing 1, and the main rotating shaft 2 penetrates through the housing 1 and is disposed at a center of the housing 1. The main rotating shaft 2 is fixedly provided with a rotor 3 arranged in the casing 1, the connecting disc 7 is assembled on the main rotating shaft 2 in an interference manner, and the casing 1 is fixedly provided with a stator 4 fixed on the casing 1. After the motor is electrified, the rotor 3 rotates inside the stator 4 through the principle of electromagnetism generation to drive the main rotating shaft 2 to rotate. The motor can be applied to two core parts of an air system assembly and a hydrogen system assembly of a hydrogen fuel cell system, is a high-rotating-speed permanent magnet variable-frequency motor, and is matched with an air compressor for use.
Referring to fig. 1, a junction box 9 is fixed on a non-shaft-extension end cover 8, an electrical lead connector 6 is installed on the junction box 9, the electrical lead connector 6 can be a direct-insertion high-voltage plug-in unit and can also be a multi-core lead with shielding, and the like.
Referring to fig. 1 and 2, a cooling cavity 11 is formed in the casing 1, the cooling cavity 11 is disposed inside the casing 1, a water inlet pipe 12 and a water outlet pipe 13 are fixedly disposed on the outer side of the casing 1, and the water inlet pipe 12, the cooling cavity 11 and the water outlet pipe 13 are sequentially connected in series and communicated. The motor is required to be cooled due to the fact that the rotating speed of the motor is high and a large amount of heat is generated, cold water is injected into the cooling cavity 11 from the water inlet pipe 12 and absorbs the heat of the motor, then hot water is discharged from the water outlet pipe 13, and the motor is cooled by circulating water cooling, so that the motor is small and compact in structure and high in environment adaptability, and can still run for a long time (at least 5 years) in an environment of-40-65 ℃.
Referring to fig. 1, an end cover assembly 5 is installed at one end far away from an electrical lead connector 6, a plurality of mounting holes 51 are formed in the end cover assembly 5, the end cover assembly 5 is connected with a casing 1 through bolts, an operator realizes the installation and connection between an air compressor and a motor through the end cover assembly 5, and the position of the motor on the air compressor is fixed. The end face of the end cover assembly 5 is square, and is matched with the position of the installation position of the air compressor, so that the connection relation between the motor and the air compressor is further fixed, and the connection stability is improved.
Referring to fig. 1 and 2, an avoiding hole 52 penetrating through the end cover assembly 5 is formed in the center of the inside of the end cover assembly 5, the avoiding hole 52 is opposite to one end of the main rotating shaft 2, the end portion of the main rotating shaft 2 extends outwards from the avoiding hole 52, a connecting disc 7 is installed on the main rotating shaft 2, and the avoiding hole 52 plays a role of avoiding the main rotating shaft 2.
Referring to fig. 2 and 3, a sealing ring 21 is sleeved on the main rotating shaft 2, and the sealing ring 21 is disposed inside the casing 1 and interconnected with the end cover assembly 5. Through the setting of sealing washer 21, prevent inside fluid and other debris get into the motor, the effectual leakproofness of having guaranteed the motor.
Referring to fig. 2 and 3, the sealing ring 21 is in a double-lip reverse spiral shape, and two opposite-direction threads are arranged to ensure that the sealing ring 21 further effectively prevents oil and other impurities from entering the motor during the rotation of the main rotating shaft 2.
Referring to fig. 3, the inner spiral of the sealing ring 21 is made of a metal material, and the metal material on the inner side plays a role in enhancing the overall strength of the sealing ring 21, thereby ensuring the stability of the sealing ring 21.
Referring to fig. 3, the outer bolt of the sealing ring 21 is made of teflon, and the teflon on the outer side plays a role in improving the elasticity of the outer side of the sealing ring 21, so that the overall buffering and deformation of the sealing ring 21 are improved, and the sealing ring is further matched with a metal material to prevent oil and other impurities from entering the motor.
The implementation principle of the first embodiment of the application is as follows: the operator selects the square end cover assembly 5 through the specific shape of the air compressor with the motor installed according to the requirement, the motor and the air compressor are fixedly installed together through the end cover assembly 5, the sealing ring 21 prevents oil and other sundries from entering the motor, and finally the normal work of the motor is ensured through the electrification of the electric lead connector 6 and the circulation of cooling water in the cooling cavity 11.
Example two:
referring to fig. 4, the difference between the second embodiment and the first embodiment is the shape of the end cover assembly 5, and the installation and connection structure of the motor and the air compressor is different. The end face of the end cover assembly 5 is hexagonal, the end cover assembly 5 is horizontally distributed, the motor is horizontally arranged on the air compressor and is matched with the installation structure of the air compressor, the connection relation between the motor and the air compressor is further fixed, and the connection stability is improved.
Referring to fig. 4, the mounting flange 7 is placed in the escape hole 52, and the escape hole 52 functions to escape the main rotating shaft 7.
Example three:
referring to fig. 5, the third embodiment is different from the first embodiment in that the shape of the end cover assembly 5 is different, and the installation and connection structure of the motor and the air compressor is different. The end face of the end cover assembly 5 is hexagonal, the end cover assembly 5 is vertically distributed and is matched with the mounting structure of the air compressor, the connection relation between the motor and the air compressor is further fixed, and the connection stability is improved.
Referring to fig. 5, the connection plate 7 is installed and placed in the escape hole 52, and the escape hole 52 functions to escape the main rotating shaft 7.
Example four:
referring to fig. 6, the fourth embodiment is different from the first embodiment in that the shape of the end cover assembly 5 is different, and the installation and connection structure of the motor and the air compressor is different. The end face of the end cover assembly 5 is circular, a plurality of lower connecting holes 53 are formed below the end cover assembly 5, the motor is fixedly mounted on the air compressor through the lower connecting holes 53 and is matched with the mounting structure of the air compressor, the connection relation between the motor and the air compressor is further fixed, and the connection stability is improved.
Example five:
referring to fig. 7, the fifth embodiment is different from the first embodiment in that the shape of the end cover assembly 5 is different, and the installation and connection structure of the motor and the air compressor is different. The end face of the end cover assembly 5 is circular, one side of the end cover assembly 5 is fixedly provided with a side connecting hole 54, the motor is fixedly installed on the air compressor through the side connecting hole 54 and is matched with the installation structure of the air compressor, the connection relation between the motor and the air compressor is further fixed, and the connection stability is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A kind of hydrogen fuel cell specialized electrical machinery, characterized by that: the motor comprises a housing (1), a main rotating shaft (2) is connected to the housing (1) in a rotating mode, a rotor (3) arranged inside the housing (1) is fixedly arranged on the main rotating shaft (2), a connecting disc (7) is assembled on the main rotating shaft (2) in an interference mode, a stator (4) fixed on the housing (1) is fixedly arranged in the housing (1), a non-shaft-extension end cover (8) is installed at the rear end of the housing (1), a junction box (9) is fixedly arranged on the non-shaft-extension end cover (8), an electrical lead connector (6) is arranged on the junction box (9), an end cover assembly (5) is arranged at one end, far away from the electrical lead connector, of the housing (1), a plurality of mounting holes (51) are formed in the end cover assembly (5), a avoiding hole (52) penetrating through the end cover assembly (5) is formed in the end cover assembly (5), and the avoiding hole (52) is right aligned to the end portion of the main rotating shaft (2).
2. The hydrogen fuel cell-dedicated motor according to claim 1, characterized in that: the end face of the end cover assembly (5) is square, and the end part of the main rotating shaft (2) extends outwards from the avoidance hole (52).
3. The hydrogen fuel cell-dedicated motor according to claim 1, characterized in that: the end face of the end cover assembly (5) is hexagonal, the end cover assembly (5) is horizontally distributed, and the end part of the main rotating shaft (2) is arranged in the avoidance hole (52).
4. The hydrogen fuel cell-dedicated motor according to claim 1, characterized in that: the end face of the end cover assembly (5) is hexagonal, the end cover assembly (5) is vertically distributed, and the end part of the main rotating shaft (2) is arranged in the avoiding hole (52).
5. The hydrogen fuel cell-dedicated motor according to claim 1, characterized in that: the end face of the end cover assembly (5) is in a racket shape, a lower connecting hole (53) is formed in the end cover assembly (5), and the end portion of the main rotating shaft (2) extends out of the avoiding hole (52).
6. The hydrogen fuel cell-dedicated motor according to claim 1, characterized in that: the end face of the end cover assembly (5) is in a racket shape, a side connecting hole (54) is formed in the end cover assembly (5), and the end portion of the main rotating shaft (2) extends out of the avoidance hole (52).
7. The hydrogen fuel cell-dedicated motor according to claim 1, characterized in that: a cooling cavity (11) is formed in the machine shell (1), a water inlet pipe (12) and a water outlet pipe (13) are fixedly arranged on the outer side of the machine shell (1), and the water inlet pipe (12), the cooling cavity (11) and the water outlet pipe (13) are sequentially communicated.
8. The hydrogen fuel cell-dedicated motor according to claim 1, characterized in that: the main rotating shaft (2) is sleeved with a sealing ring (21), and the sealing ring (21) is arranged in the casing (1) and is connected with the end cover assembly (5) mutually.
9. The hydrogen fuel cell-dedicated motor according to claim 8, wherein: the sealing ring (21) is in a double-lip reverse spiral shape.
10. The hydrogen fuel cell-dedicated motor according to claim 8, wherein: the inner side spiral of the sealing ring (21) is made of metal materials, and the outer side bolt of the sealing ring (21) is made of polytetrafluoroethylene materials.
CN202111005301.XA 2021-08-30 2021-08-30 Special motor for hydrogen fuel cell Pending CN113691064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111005301.XA CN113691064A (en) 2021-08-30 2021-08-30 Special motor for hydrogen fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111005301.XA CN113691064A (en) 2021-08-30 2021-08-30 Special motor for hydrogen fuel cell

Publications (1)

Publication Number Publication Date
CN113691064A true CN113691064A (en) 2021-11-23

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CN202111005301.XA Pending CN113691064A (en) 2021-08-30 2021-08-30 Special motor for hydrogen fuel cell

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Country Link
CN (1) CN113691064A (en)

Citations (5)

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CN208445397U (en) * 2018-03-07 2019-01-29 吴乐敏 A kind of electric vehicle waterproof motor
CN209283010U (en) * 2019-02-20 2019-08-20 方大电机股份有限公司 A kind of air compressor machine motor special
CN211127465U (en) * 2019-12-23 2020-07-28 上海大郡动力控制技术有限公司 Motor structure for new energy automobile
US20200403478A1 (en) * 2019-06-19 2020-12-24 Delta Electronics, Inc. Motor

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CN211127465U (en) * 2019-12-23 2020-07-28 上海大郡动力控制技术有限公司 Motor structure for new energy automobile

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Application publication date: 20211123