CN116241487A - High-voltage shielding fan and fuel cell system using same - Google Patents

High-voltage shielding fan and fuel cell system using same Download PDF

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Publication number
CN116241487A
CN116241487A CN202310244418.6A CN202310244418A CN116241487A CN 116241487 A CN116241487 A CN 116241487A CN 202310244418 A CN202310244418 A CN 202310244418A CN 116241487 A CN116241487 A CN 116241487A
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CN
China
Prior art keywords
shielding
sleeve
shell
fan
voltage
Prior art date
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Pending
Application number
CN202310244418.6A
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Chinese (zh)
Inventor
刘小青
邓佳
邴黎明
王云艳
黄振强
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Zhongshan Hydrogen Forest Energy Technology Co ltd
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Zhongshan Hydrogen Forest Energy Technology Co ltd
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Application filed by Zhongshan Hydrogen Forest Energy Technology Co ltd filed Critical Zhongshan Hydrogen Forest Energy Technology Co ltd
Priority to CN202310244418.6A priority Critical patent/CN116241487A/en
Publication of CN116241487A publication Critical patent/CN116241487A/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
    • 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
    • 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
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid 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
    • F04D29/083—Sealings especially adapted for elastic fluid pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
    • 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
    • H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
    • H02K11/014—Shields associated with stationary parts, e.g. stator cores
    • H02K11/0141—Shields associated with casings, enclosures or brackets
    • 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
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/163—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at only one end of the rotor
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a high-voltage shielding fan and a fuel cell system applied by the same, comprising a high-voltage motor, a wind wheel and a fan housing; the high-voltage motor comprises an electric control assembly, a front end cover, a shell, a stator assembly, a rotor assembly and a rotating shaft, wherein the shell comprises a bottom plate and a sleeve shell axially extending from the edge of the bottom plate, a shaft extending hole is formed in the middle of the front end cover, one end of the rotating shaft extends out of the shaft extending hole of the front end cover to form a shaft extending end, and a framework oil seal is arranged between the rotating shaft and the shaft extending hole of the front end cover; the high-voltage motor further comprises a shielding sleeve, the shielding sleeve is arranged between the stator assembly and the rotor assembly, one end of the shielding sleeve is propped against the front end cover, the other end of the shielding sleeve is propped against the bottom plate, the shielding sleeve separates the stator assembly from the rotor assembly, an insulating effect is achieved, the structure is simple and effective, even if the framework oil seal is worn and failed, water enters the high-voltage motor, insulation of the stator assembly is not affected, and high-voltage power supply safety is guaranteed.

Description

High-voltage shielding fan and fuel cell system using same
Technical field:
the invention relates to a high-voltage shielding fan and a fuel cell system using the same.
The background technology is as follows:
the fuel cell is an energy conversion device for generating electric energy through electrochemical reaction of hydrogen and oxygen, and has the advantages of high energy conversion efficiency, simple structure, low noise, no pollution and the like. In addition to generating electricity and water during the fuel cell reaction, a large amount of heat is released. The released heat needs to be dissipated to the outside through a cooling system in the fuel cell to ensure the normal operation of the fuel cell, wherein a heat dissipation fan is a main component in the cooling system.
The low-voltage heat dissipation fans used in the cooling systems of the fuel cells at present are required to be supplied with power at low voltage, so that a high-voltage to low-voltage DC-DC converter is required to be provided in the fuel cell system to ensure the power supply requirement of the low-voltage fans. The DC-DC converter which is independently arranged for the low-voltage fan not only increases the number of parts of the system, but also increases the cost, so that a plurality of companies begin to develop the high-voltage heat dissipation fan, and the high-voltage electric energy generated by the fuel cell can be directly used for driving, thereby reducing the use of one DC-DC converter and the cost. However, the difficulty of the high-voltage fan is that the motor is driven by using 500-800V high-voltage power output by the fuel cell, if the insulation inside the motor is not good, electric leakage is caused, and the motor or other electrical equipment can be burnt, and even the life safety of people is endangered.
Most of rotating motors in the existing fans adopt dynamic sealing, such as oil seal sealing is arranged between a rotating shaft and a front end cover, but dynamic friction exists between the rotating shaft of the motor and a sealing element all the time, so that the matching of the rotating shaft and the sealing element becomes loose after a long time, and the sealing effect is poorer and worse; in addition, the sealing element is worn or aged for a long time, so that sealing failure water and sundries enter the motor, the stator coil of the motor is short-circuited, the motor or other electrical equipment is burnt, and the life safety of people is even endangered.
The invention comprises the following steps:
the invention aims to provide a high-voltage shielding fan and a fuel cell system applied by the same, which can solve the technical problems that in the prior art, an oil seal is arranged between a rotating shaft and a front end cover of a motor of a heat dissipation fan, the rotating shaft and the oil seal are worn out or the oil seal is aged for a long time to cause seal failure, water and sundries enter the motor to cause short circuit of a stator coil of the motor, burn out the motor or other electrical equipment and even endanger life safety of people.
The aim of the invention is achieved by the following technical scheme.
The invention aims to provide a high-voltage shielding fan which comprises a high-voltage motor, a wind wheel and a fan housing;
wherein: the high-voltage motor comprises an electric control component, a front end cover, a shell, a stator component, a rotor component and a rotating shaft, wherein the shell comprises a bottom plate and a sleeve shell axially extending from the edge of the bottom plate, a cavity is formed between the bottom plate and the sleeve shell, the stator component is sleeved on the inner wall of the sleeve shell, the rotor component is arranged on the rotating shaft and sleeved in the stator component, one end of the sleeve shell is provided with an opening, the front end cover is arranged at the opening of the sleeve shell, the electric control component is positioned outside the cavity and is arranged on one side of the bottom plate, the front end cover and the bottom plate are both provided with bearing chambers, bearings are arranged in the bearing chambers, the rotating shaft is supported on the bearings, a shaft extending hole is formed in the middle of the front end cover, one end of the rotating shaft extends out from the shaft extending hole of the front end cover to form a shaft extending end, a wind wheel is arranged on the shaft extending end, a fan housing is sleeved on the periphery of the wind wheel, and a framework oil seal is arranged between the rotating shaft and the shaft extending hole of the front end cover;
the method is characterized in that: the high-voltage motor further comprises a shielding sleeve, the shielding sleeve is arranged between the stator assembly and the rotor assembly, one end of the shielding sleeve is abutted against the front end cover, the other end of the shielding sleeve is abutted against the bottom plate, and the shielding sleeve separates the stator assembly from the rotor assembly.
The shielding sleeve comprises a shielding sleeve and an annular convex part extending from the top of the shielding sleeve to the outer radial direction, a plurality of first mounting holes are formed in the annular convex part, a plurality of second mounting holes are formed in the front end cover, the second mounting holes penetrate through screws to be locked and connected with the first mounting holes, the shielding sleeve is fixed on the front end cover, an annular boss is arranged on a bottom plate, and the bottom of the shielding sleeve is sleeved outside the annular boss.
A first sealing ring is arranged between the end face of the annular convex part and the front end cover, a first sealing groove is arranged on the end face of the annular convex part, and the first sealing ring is arranged in the first sealing groove; a second sealing ring is arranged between the outer side wall of the annular boss and the shielding sleeve, a second sealing groove is arranged on the outer side wall of the annular boss, and the second sealing ring is arranged in the second sealing groove.
The shielding sleeve is made of an insulating non-magnetic conductive material.
The front end cover is provided with the step spigot, the outer side wall of the step spigot is provided with the third sealing groove, the third sealing groove is internally provided with the third sealing ring, and the sleeve shell is sleeved on the step spigot and tightly presses the third sealing ring to achieve the sealing effect.
The sleeve shell is internally provided with a cooling water channel, and the sleeve shell is provided with a water inlet and a water outlet which are communicated with the cooling water channel.
The fan housing is provided with a plurality of first installation protruding feet, the sleeve shell is provided with a plurality of second installation protruding feet, the first installation protruding feet and the second installation protruding feet are corresponding, and the first installation protruding feet are installed on the second installation protruding feet, so that the fan housing is installed on the high-voltage motor.
The electric control assembly comprises an electric control shell and a circuit board arranged in the electric control shell, wherein the electric control shell is arranged on the bottom plate, and a fourth sealing ring is arranged between the electric control shell and the bottom plate.
The utility model provides a fuel cell system, including fuel cell system controller, fuel cell pile module, hydrogen supply system, air supply system and cooling system, fuel cell system controller control fuel cell pile module, hydrogen supply system, air supply system and cooling system work, the hydrogen entry of pile module is connected to the output of hydrogen supply system, the air entry of pile module is connected to the output of air supply system, cooling system and pile module's coolant liquid entry and coolant liquid exit linkage, cooling system includes water pump and radiator assembly, the radiator assembly includes a plurality of high-pressure shielding fans, radiator body and connecting line, a plurality of high-pressure shielding fans are installed on the radiator body, high-pressure shielding fans is connected with the radiator body through connecting line, the output of water pump links to each other with the coolant liquid water inlet of fuel cell pile module, the coolant liquid delivery port of fuel cell pile module links to each other with the input of radiator body, the output of radiator body links to each other with the input of water pump, form the circulation water route, high-pressure shielding fans cools down the coolant liquid that flows through, its characterized in that: the high-voltage shielding fan is any one of the high-voltage shielding fans in claims 1 to 8, and the high-voltage power output by the fuel cell stack module directly supplies power to the high-voltage shielding fan.
The sleeve shell of the high-voltage motor is internally provided with the cooling water channel, the shell is provided with the water inlet and the water outlet which are communicated with the cooling water channel, the water inlet and the water outlet are respectively connected with the output end and the input end of the radiator body through the connecting pipelines, and the cooling liquid in the radiator body is introduced into the sleeve shell to radiate the high-voltage motor.
The fuel cell stack module outputs 500-800V high voltage power for supplying power to the high voltage shielding fan.
Compared with the prior art, the invention has the following effects:
1) The invention comprises a high-voltage motor, a wind wheel and a fan housing; wherein: the high-voltage motor comprises an electric control assembly, a front end cover, a shell, a stator assembly, a rotor assembly and a rotating shaft, wherein the shell comprises a bottom plate and a sleeve shell axially extending from the edge of the bottom plate, bearing chambers are respectively arranged on the front end cover and the bottom plate, bearings are respectively arranged in the bearing chambers, the rotating shaft is supported on the bearings, a shaft extending hole is formed in the middle of the front end cover, one end of the rotating shaft extends out of the shaft extending hole of the front end cover to form a shaft extending end, a wind wheel is arranged on the shaft extending end, a fan housing is sleeved on the periphery of the wind wheel, and a framework oil seal is arranged between the rotating shaft and the shaft extending hole of the front end cover; the high-voltage motor further comprises a shielding sleeve, the shielding sleeve is arranged between the stator assembly and the rotor assembly, one end of the shielding sleeve is propped against the front end cover, the other end of the shielding sleeve is propped against the bottom plate, the shielding sleeve separates the stator assembly from the rotor assembly, an insulating effect is achieved, the structure is simple and effective, even if the framework oil seal is worn and failed, water enters the high-voltage motor, insulation of the stator assembly is not affected, and high-voltage power supply safety is guaranteed.
2) Other advantages of the present invention are described in detail in the examples section.
Description of the drawings:
FIG. 1 is a perspective view of a high voltage shield blower provided in accordance with a first embodiment of the present invention;
FIG. 2 is another perspective view of a high voltage shield blower according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a high voltage shield blower provided in accordance with an embodiment of the present invention;
FIG. 4 is an exploded view of a high voltage shield blower provided in accordance with a first embodiment of the present invention;
fig. 5 is an exploded view of a high voltage motor provided in accordance with a first embodiment of the present invention;
fig. 6 is a schematic view of a shielding sleeve according to a first embodiment of the present invention;
fig. 7 is a cross-sectional view of a high voltage motor provided in accordance with a first embodiment of the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7A;
fig. 9 is a schematic diagram of a housing structure of a high-voltage motor according to a first embodiment of the present invention;
fig. 10 is a perspective view of a radiator module according to a second embodiment of the present invention;
FIG. 11 is a schematic diagram of a second embodiment of the present invention;
fig. 12 is a control schematic diagram of a fuel cell system according to a second embodiment of the present invention.
The specific embodiment is as follows:
the invention is described in further detail below by means of specific embodiments in connection with the accompanying drawings.
Embodiment one:
as shown in fig. 1 to 9, the present embodiment provides a high-voltage shielding fan, which includes a high-voltage motor 1, a wind wheel 2, and a fan housing 3;
wherein: the high-voltage motor 1 comprises an electric control assembly 10, a front end cover 11, a shell 12, a stator assembly 13, a rotor assembly 14 and a rotating shaft 15, wherein the shell 12 comprises a bottom plate 121 and a sleeve shell 122 axially extending from the edge of the bottom plate 121, a cavity 123 is formed between the bottom plate 121 and the sleeve shell 122, the stator assembly 13 is sleeved on the inner wall of the sleeve shell 122, the rotor assembly 14 is mounted on the rotating shaft 15, the rotor assembly 14 is sleeved in the stator assembly 13, one end of the sleeve shell 122 is provided with an opening 1220, the front end cover 11 is mounted at the opening 1220 of the sleeve shell 122, the electric control assembly 10 is positioned outside the cavity 123 and mounted on one side of the bottom plate 121, bearing chambers 16 are respectively arranged on the front end cover 11 and the bottom plate 121, bearings 17 are respectively mounted in the bearing chambers 16, the rotating shaft 15 is supported on the bearings 17, shaft extension holes 111 are respectively formed in the middle of the front end cover 11, one end of the rotating shaft 15 extends out of the shaft extension holes 111 of the front end cover 11 to form shaft extension ends 151, the wind wheel 2 is mounted on the shaft extension ends 151, the wind wheel 3 is sleeved on the periphery of the wind wheel 2, and a framework oil seal is mounted between the rotating shaft 15 and the shaft extension holes 111 of the front end cover 11;
the method is characterized in that: the high-voltage motor 1 further comprises a shielding sleeve 18, the shielding sleeve 18 is arranged between the stator assembly 13 and the rotor assembly 14, one end of the shielding sleeve 18 is abutted against the front end cover 11, the other end of the shielding sleeve 18 is abutted against the bottom plate 121, the shielding sleeve 18 separates the stator assembly 13 from the rotor assembly 14, an insulation effect is achieved, the structure is simple and effective, even if the framework oil seal is worn out and failed, water enters the high-voltage motor, insulation of the stator assembly is not affected, and high-voltage power supply safety is guaranteed.
The shielding sleeve 18 comprises a shielding sleeve 181 and an annular convex part 182 extending from the top of the shielding sleeve 181 to the outer radial direction, a plurality of first mounting holes 1820 are formed in the annular convex part 182, a plurality of second mounting holes 113 are formed in the front end cover 11, the shielding sleeve 18 is fixedly arranged on the front end cover 11 through locking connection of screws and the first mounting holes 1820 through the second mounting holes 113, an annular boss 124 is arranged on the bottom plate 121, the bottom of the shielding sleeve 181 is sleeved outside the annular boss 124, and the structure is convenient to install and detach and reasonable in structural arrangement.
A first seal ring 1821 is disposed between the end surface of the annular protrusion 182 and the front end cover 11, a first seal groove 1822 is disposed on the end surface of the annular protrusion 182, and the first seal ring 1821 is installed in the first seal groove 1822; a second sealing ring 1241 is arranged between the outer side wall of the annular boss 124 and the shielding sleeve 181, a second sealing groove 1242 is arranged on the outer side wall of the annular boss 124, the second sealing ring 1241 is arranged in the second sealing groove 1242, the stator assembly 13 is sealed in the shell 12 by utilizing the combined design of the first sealing ring 1821, the shielding sleeve 18 and the second sealing ring 1241, and the stator assembly 13 is isolated from the rotor assembly 14, so that the insulation effect is achieved, and the structure is simple and effective.
The shield 18 is made of an insulating non-magnetic material, and can perform an insulating function, and cannot conduct magnetic conduction or shield a magnetic field to influence the performance of the motor.
The front end cover 11 is provided with the step spigot 114, the outer side wall of the step spigot 114 is provided with the third sealing groove 1141, the third sealing groove 1141 is internally provided with the third sealing ring 1142, the sleeve shell 122 is sleeved on the step spigot 114 and tightly presses the third sealing ring 1142 to achieve the sealing effect, the sealing effect is good, water is prevented from penetrating between the front end cover 11 and the shell 12, and the structural arrangement is reasonable.
The cooling water channel 1221 is formed in the sleeve housing 122, and the water inlet 1222 and the water outlet 1223 which are communicated with the cooling water channel 1221 are formed in the sleeve housing 122, so that the cooling liquid is convenient to be introduced, the high-voltage motor is cooled, and the efficiency of the high-voltage motor is improved.
The fan housing 3 is provided with a plurality of first mounting pins 31, the sleeve housing 122 is provided with a plurality of second mounting pins 1224, the first mounting pins 31 and the second mounting pins 1224 are corresponding, and the first mounting pins 31 are mounted on the second mounting pins 1224, so that the fan housing 3 is mounted on the high-voltage motor 1, and the mounting structure is simple.
The electric control assembly 10 comprises an electric control shell 101 and a circuit board 102 arranged in the electric control shell 101, wherein the electric control shell 101 is arranged on a bottom plate 121, and a fourth sealing ring 103 is arranged between the electric control shell 101 and the bottom plate 121, so that the sealing effect is good.
Embodiment two:
as shown in fig. 10 to 12, a fuel cell system includes a fuel cell system controller, a fuel cell stack module, a hydrogen supply system, an air supply system and a cooling system, the fuel cell system controller controls the fuel cell stack module, the hydrogen supply system, the air supply system and the cooling system to operate, an output end of the hydrogen supply system is connected with a hydrogen inlet of the stack module, an output end of the air supply system is connected with an air inlet of the stack module, the cooling system is connected with a coolant inlet and a coolant outlet of the stack module, the cooling system includes a water pump and a radiator assembly, the radiator assembly 200 includes a plurality of high-pressure shielding fans 201, a radiator body 202 and a connecting pipeline 203, the plurality of high-pressure shielding fans 201 are mounted on the radiator body 202, the high-pressure shielding fans are connected with the radiator body 202 through the connecting pipeline 203, an output end of the water pump is connected with a coolant inlet of the fuel cell stack module, an output end of the radiator body 202 is connected with an input end of the water pump to form a circulating water path, and the high-pressure shielding fans 201 cool coolant flowing through the radiator body, and is characterized in that: the high-voltage shielding fan is the high-voltage shielding fan in the first embodiment, and the high-voltage power output by the fuel cell stack module directly supplies power to the high-voltage shielding fan.
The sleeve housing 122 of the high-voltage motor 1 is provided with the cooling water channel 1221, the casing 1 is provided with the water inlet 1222 and the water outlet 1223 which are communicated with the cooling water channel 1221, the water inlet 1222 and the water outlet 1223 are respectively connected with the output end and the input end of the radiator body 202 through the connecting pipeline 203, the cooling liquid in the radiator body 202 is introduced into the sleeve housing 122 to radiate the high-voltage motor 1, the cooling liquid in the radiator body flows through the cooling water channel 1221 to form a circulation, the heat generated by the high-voltage motor 1 is taken away, and the normal operation of the motor is ensured.
The fuel cell stack module outputs 500-800V high voltage power for supplying power to the high voltage shielding fan.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention are included in the scope of the present invention.

Claims (11)

1. A high-voltage shielding fan comprises a high-voltage motor (1), a wind wheel (2) and a fan housing (3); wherein: the high-voltage motor (1) comprises an electric control component (10), a front end cover (11), a shell (12), a stator component (13), a rotor component (14) and a rotating shaft (15), wherein the shell (12) comprises a bottom plate (121) and a sleeve shell (122) axially extending from the edge of the bottom plate (121), a cavity (123) is formed between the bottom plate (121) and the sleeve shell (122), the stator component (13) is sleeved on the inner wall of the sleeve shell (122), the rotor component (14) is mounted on the rotating shaft (15), the rotor component (14) is sleeved in the stator component (13), one end of the sleeve shell (122) is provided with an opening (1220), the front end cover (11) is mounted at the opening (1220) of the sleeve shell (122), the electric control component (10) is positioned outside the cavity (123) and mounted on one side of the bottom plate (121), bearing chambers (16) are respectively arranged on the front end cover (11) and the bottom plate (121), bearings (17) are respectively mounted in the bearing chambers (16), the rotating shaft (15) are supported on the bearings (17), shaft holes (111) are formed in the middle of the front end cover (11), shaft holes (111) extend out from the front end cover (11), the wind wheel (2) is arranged on the shaft extension end (151), the fan housing (3) is sleeved on the periphery of the wind wheel (2), and a framework oil seal (112) is arranged between the rotating shaft (15) and the shaft extension hole (111) of the front end cover (11);
the method is characterized in that: the high-voltage motor (1) further comprises a shielding sleeve (18), the shielding sleeve (18) is arranged between the stator assembly (13) and the rotor assembly (14), one end of the shielding sleeve (18) abuts against the front end cover (11), the other end of the shielding sleeve abuts against the bottom plate (121), and the shielding sleeve (18) separates the stator assembly (13) from the rotor assembly (14).
2. The high voltage shield fan of claim 1 wherein: the shielding sleeve (18) comprises a shielding sleeve (181) and an annular convex part (182) extending from the top of the shielding sleeve (181) to the outer radial direction, a plurality of first mounting holes (1820) are formed in the annular convex part (182), a plurality of second mounting holes (113) are formed in the front end cover (11), the shielding sleeve (18) is fixedly arranged on the front end cover (11) through locking connection of screws passing through the second mounting holes (113) and the first mounting holes (1820), an annular boss (124) is arranged on the bottom plate (121), and the bottom of the shielding sleeve (181) is sleeved outside the annular boss (124).
3. The high voltage shield fan of claim 2 wherein: a first sealing ring (1821) is arranged between the end face of the annular convex part (182) and the front end cover (11), a first sealing groove (1822) is arranged on the end face of the annular convex part (182), and the first sealing ring (1821) is arranged in the first sealing groove (1822); a second sealing ring (1241) is arranged between the outer side wall of the annular boss (124) and the shielding sleeve (181), a second sealing groove (1242) is arranged on the outer side wall of the annular boss (124), and the second sealing ring (1241) is arranged in the second sealing groove (1242).
4. A high voltage shield fan according to claim 1 or 2 or 3, wherein: the shield (18) is fabricated from an insulating, non-magnetically permeable material.
5. The high voltage shield fan of claim 4 wherein: be equipped with step tang (114) on front end housing (11), be equipped with third seal groove (1141) on the lateral wall of step tang (114), install third sealing washer (1142) in third seal groove (1141), sleeve shell (122) suit is on step tang (114) and compress tightly third sealing washer (1142) in order to reach sealed effect.
6. The high voltage shield fan of claim 5 wherein: a cooling water channel (1221) is arranged in the sleeve shell (122), and a water inlet (1222) and a water outlet (1223) which are communicated with the cooling water channel (1221) are arranged on the sleeve shell (122).
7. The high voltage shield fan of claim 6 wherein: be equipped with a plurality of first installation protruding feet (31) on fan housing (3), be equipped with a plurality of second installation protruding feet (1224) on sleeve shell (122), first installation protruding foot (31) and second installation protruding foot (1224) are corresponding, and first installation protruding foot (31) are installed on second installation protruding foot (1224), make fan housing (3) install on high-voltage motor (1).
8. The high voltage shield fan of claim 7 wherein: the electric control assembly (10) comprises an electric control shell (101) and a circuit board (102) arranged in the electric control shell (101), wherein the electric control shell (101) is arranged on a bottom plate (121), and a fourth sealing ring (103) is arranged between the electric control shell (101) and the bottom plate (121).
9. The utility model provides a fuel cell system, including the fuel cell system controller, the fuel cell pile module, the hydrogen supply system, air supply system and cooling system, the fuel cell system controller control fuel cell pile module, the hydrogen supply system, air supply system and cooling system work, the hydrogen inlet of pile module is connected to the output of hydrogen supply system, the air inlet of pile module is connected to the output of air supply system, cooling system and the coolant liquid entry and the coolant liquid exit linkage of pile module, cooling system includes water pump and radiator subassembly, radiator subassembly (200) include a plurality of high-pressure shielding fans (201), radiator body (202) and connecting tube (203), a plurality of high-pressure shielding fans (201) are installed on radiator body (202), high-pressure shielding fans are connected with radiator body (202) through connecting tube (203), the output of water pump links to each other with the coolant liquid water inlet of fuel cell pile module, the coolant liquid delivery port of fuel cell pile module links to each other with the input of radiator body (202), the output of radiator body (202) links to each other with the input of water pump, form the high-pressure shielding fan, form circulation fan (201), cooling fan cooling water path (201) is characterized in that it is cooled down to the cooling water path: the high-voltage shielding fan is any one of the high-voltage shielding fans in claims 1 to 8, and the high-voltage power output by the fuel cell stack module directly supplies power to the high-voltage shielding fan.
10. A fuel cell system according to claim 9, wherein: a cooling water channel (1221) is formed in a sleeve shell (122) of the high-voltage motor (1), a water inlet (1222) and a water outlet (1223) which are communicated with the cooling water channel (1221) are formed in the machine shell (1), the water inlet (1222) and the water outlet (1223) are respectively connected with an output end and an input end of the radiator body (202) through the connecting pipeline (203), and cooling liquid in the radiator body (202) is introduced into the sleeve shell (122) to dissipate heat of the high-voltage motor (1).
11. A fuel cell system according to claim 10, wherein: the fuel cell stack module outputs 500-800V high voltage to supply power for the high voltage shielding blower.
CN202310244418.6A 2023-03-14 2023-03-14 High-voltage shielding fan and fuel cell system using same Pending CN116241487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310244418.6A CN116241487A (en) 2023-03-14 2023-03-14 High-voltage shielding fan and fuel cell system using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310244418.6A CN116241487A (en) 2023-03-14 2023-03-14 High-voltage shielding fan and fuel cell system using same

Publications (1)

Publication Number Publication Date
CN116241487A true CN116241487A (en) 2023-06-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310244418.6A Pending CN116241487A (en) 2023-03-14 2023-03-14 High-voltage shielding fan and fuel cell system using same

Country Status (1)

Country Link
CN (1) CN116241487A (en)

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