High-speed motor for fuel cell air compressor with air intake filtration and self-cleaning function

Abstract

The present invention discloses a high-speed motor of a fuel cell air compressor with an air intake filter and self-cleaning function, comprising a casing module, a volute module, a motor main shaft, an end cover, a high-speed rotor and an air intake filter structure, wherein the volute module is mounted on the casing module and an end cover is mounted on its end, and the volute module comprises a low-pressure volute and a high-pressure volute connected in series, wherein the low-pressure volute and the high-pressure volute are respectively provided with a low-pressure impeller and a high-pressure impeller on the inner side through a pull rod; the motor main shaft is supported by a support structure, and a high-speed rotor is arranged on the motor main shaft; the support structure comprises a low-pressure side support unit and a high-pressure side support unit distributed at both ends of the motor main shaft, wherein the low-pressure side support unit comprises a low-pressure side radial air bearing, a low-pressure side radial air bearing seat, and a low-pressure side radial air bearing sleeve. The present invention is provided with an air intake filter assembly at the air intake end, and the air intake filter assembly can filter dust and impurities in the air, prevent dust from entering the cavity, and ensure the normal use of the motor.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen fuel cell air compressors, in particular to a high-speed motor for a fuel cell air compressor with an air intake filtering and self-cleaning function. Background Art

[0002] With the increasing global consumption of fossil fuels and the decreasing oil reserves, the demand for clean and sustainable new energy applications is increasing. Hydrogen fuel cell technology has been rapidly developed and applied as an important branch of clean new energy solutions. The air compressor for hydrogen fuel cells is an important component of the air supply system in the fuel cell system and belongs to the front-end mechanism of the hydrogen fuel cell reactor.

[0003] Air compressor intake filtration is a necessary procedure for air compressors. When traditional air compressors filter the air, they only place a layer of filter screen at the air inlet. The adsorption and filtration effect is poor, resulting in more impurities being absorbed into the inner wall of the machine and equipment, causing damage to the equipment. After filtering the air, a large amount of impurities are adsorbed on the filter plate. Over time, the filtration effect becomes poor. Summary of the invention

[0004] The object of the present invention is to provide a high-speed motor for a fuel cell air compressor with an air intake filter and self-cleaning function to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-speed motor of a fuel cell air compressor with an air intake filter and self-cleaning function, comprising a casing module, a volute module, a motor main shaft, an end cover, a high-speed rotor and an air intake filter structure, wherein the volute module is mounted on the casing module and an end cover is mounted on its end, the volute module comprises a low-pressure volute and a high-pressure volute connected in series, wherein a low-pressure impeller and a high-pressure impeller are mounted on the inner sides of the low-pressure volute and the high-pressure volute respectively through a pull rod; the motor main shaft is supported by a support structure, and a high-speed rotor is arranged on the motor main shaft; the support structure comprises low-pressure side support units distributed at both ends of the motor main shaft The invention relates to a high-pressure side support unit, wherein the low-pressure side support unit comprises a low-pressure side radial air bearing, a low-pressure side radial air bearing seat, and a low-pressure side radial air bearing sleeve, wherein the low-pressure side radial air bearing sleeve is wound around the outside of the motor main shaft, the low-pressure side radial air bearing is arranged in the low-pressure side radial air bearing seat and wound around the outside of the low-pressure side radial air bearing sleeve, and the low-pressure side radial air bearing seat is arranged on the end cover by screws; the high-pressure side support unit comprises a high-pressure side radial air bearing, an air thrust bearing and a high-pressure side radial air bearing sleeve, and the high-pressure side radial air bearing is wound around the outside of the motor main shaft.

[0006] Preferably, the casing module includes an outer casing, an inner casing and a water cooling component, the outer surface of the inner casing and the inner surface of the outer casing are provided with a water cooling channel, the water cooling component is connected to the water cooling channel, and the water cooling component includes a water inlet joint and a water outlet joint arranged on the outside of the outer casing.

[0007] Preferably, an air intake filter structure is installed at the air inlet of the casing module, and the air intake filter structure includes a bottom frame plate, a micro motor, a screw, an air intake filter assembly, a top frame plate and an adjustment frame, wherein the bottom frame plate is fixed at the air inlet, the bottom frame plate is provided with a through hole connected to the air inlet, the inner side of the bottom frame plate is movably connected with a rotating rod through a rotating shaft, and the outer side of the bottom frame plate is provided with a micro motor for driving the rotating rod to operate; the air intake filter assembly includes a telescopic plate and an air intake filter sheet, the telescopic plate can be freely telescopic and is connected by a plurality of telescopic folds, the two ends of the telescopic plate are respectively connected to the bottom frame plate and the top frame plate, and a plurality of groups of air intake filters are provided on the inner side of the telescopic plate.

[0008] Preferably, a screw is rotatably connected to the inner side of the bottom frame plate, a bracket is fixedly installed in the middle of the bottom frame plate, and long grooves are provided on both sides of the bracket; a bevel gear A is mounted on the rotating rod, and a bevel gear B meshing with the bevel gear A is provided on the top of the screw.

[0009] Preferably, a screw sleeve is mounted on the screw rod, and both ends of the screw sleeve are connected to an adjustment frame. The adjustment frame is L-shaped and can be slidably connected with the long groove. The end of the adjustment frame extends out of the long groove and is connected to the top frame plate. The top frame plate can approach or move away from the bottom frame plate when the screw rod is running, and the telescopic plate can be contracted or extended.

[0010] Preferably, the air intake filter structure also includes a track and a vibrating dust removal pressure wheel, wherein the track is provided with multiple sections and can be fixedly mounted on the bottom frame plate and the top frame plate, and a vibrating dust removal pressure wheel is provided on the track.

[0011] Preferably, the bottom end of the vibrating dust removal pressure wheel is slidably connected to the track through a self-propelled wheel. The vibrating dust removal pressure wheel can move along the track and vibrate multiple groups of air intake filters on the inner side of the telescopic plate to cause dust adsorbed thereon to fall off.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention adopts a pressurizing method of compressing air step by step with two-stage impellers connected in series, which increases the pressure ratio of the air compressor on the one hand and effectively balances the axial forces at both ends on the other hand, which can fully meet the requirements of the fuel cell air compressor. At the same time, an air intake filter assembly is provided at the air inlet end, which can filter dust impurities in the air, prevent dust from entering the cavity, and ensure the normal use of the motor. In order to ensure the reusability of the filtering structure, a micro motor can be used to drive the rotating rod, so that the rotating rod is engaged with the bevel gear B through the bevel gear A to make the screw run, and the screw is used to drive the screw sleeve to move, so that the screw sleeve drives the top frame plate, so that the top frame plate is close to the bottom frame plate, and the telescopic plate is contracted. At this time, the air intake filter on the inner side of the telescopic plate is also in a contracted state, and the self-propelled vibration dust removal pressure wheel moves to vibrate multiple groups of air intake filters to achieve the falling of dust adsorbed on the air intake filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0015] Figure 2 This is a schematic structural diagram of an air intake filter assembly according to Embodiment 2 of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the air intake filter assembly in Example 2 of the present invention;

[0017] Figure 4 Schematic diagram of the position of the vibrating dust removal pressure wheel in Example 2 of the present invention.

[0018] In the figure: 1. low-pressure volute; 2. high-pressure volute; 3. casing module; 301. air inlet; 4. low-pressure impeller; 5. high-pressure impeller; 6. motor main shaft; 7. low-pressure side radial air bearing; 8. high-pressure side radial air bearing; 9. air thrust bearing; 10. water inlet joint; 11. water outlet joint; 12. bottom frame plate; 13. micro motor; 14. screw; 15. top frame plate; 16. adjustment frame; 17. rotating rod; 18. telescopic plate; 19. air intake filter; 20. bracket; 21. bevel gear A; 22. bevel gear B; 23. screw sleeve; 24. vibration dust removal pressure wheel; 25. track. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example 1: Please refer to Figure 1 The present invention provides a technical solution: a high-speed motor of a fuel cell air compressor with an air intake filter self-cleaning function, comprising a casing module 3, a volute module, a motor main shaft 6, an end cover, a high-speed rotor and an air intake filter structure, wherein the volute module is mounted on the casing module 3 and an end cover is mounted on its end, the volute module comprises a low-pressure volute 1 and a high-pressure volute 2 connected in series, wherein a low-pressure impeller 4 and a high-pressure impeller 5 are mounted on the inner sides of the low-pressure volute 1 and the high-pressure volute 2 respectively through a pull rod; the motor main shaft 6 is supported by a support structure, and a high-speed rotor is arranged on the motor main shaft 6; the support structure comprises low-pressure side support units distributed at both ends of the motor main shaft 6 And a high-pressure side support unit, wherein the low-pressure side support unit includes a low-pressure side radial air bearing 7, a low-pressure side radial air bearing seat, and a low-pressure side radial air bearing sleeve, wherein the low-pressure side radial air bearing sleeve is wound around the outside of the motor main shaft 6, the low-pressure side radial air bearing 7 is arranged in the low-pressure side radial air bearing seat and is wound around the outside of the low-pressure side radial air bearing sleeve, and the low-pressure side radial air bearing seat is arranged on the end cover by screws; the high-pressure side support unit includes a high-pressure side radial air bearing 8, an air thrust bearing 9 and a high-pressure side radial air bearing sleeve, and the high-pressure side radial air bearing 8 is wound around the outside of the motor main shaft 6.

[0023] In this embodiment, the casing module 3 includes an outer casing, an inner casing and a water cooling component. The outer surface of the inner casing and the inner surface of the outer casing are provided with a water cooling channel. The water cooling component is connected to the water cooling channel. The water cooling component includes a water inlet joint 10 and a water outlet joint 11 arranged on the outside of the outer casing.

[0024] Example 2: Please refer to Figure 1-4The present invention provides a technical solution: a high-speed motor of a fuel cell air compressor with an air intake filter self-cleaning function, comprising a casing module 3, a volute module, a motor main shaft 6, an end cover, a high-speed rotor and an air intake filter structure, wherein the volute module is mounted on the casing module 3 and an end cover is mounted on its end, the air intake filter structure is mounted at the air inlet 301 of the casing module 3, the air intake filter structure comprises a bottom frame plate 12, a micro motor 13, a screw 14, an air intake filter assembly, a top frame plate 15 and an adjustment frame 16, wherein the bottom frame plate 12 is fixed At the air inlet 301, a through hole communicating with the air inlet 301 is provided on the bottom frame plate 12, a rotating rod 17 is movably connected to the inner side of the bottom frame plate 12 through a rotating shaft, and a micro motor 13 for driving the rotating rod 17 is provided on the outer side of the bottom frame plate 12; the air intake filter assembly includes a telescopic plate 18 and an air intake filter 19, the telescopic plate 18 can be freely retracted and is connected by a plurality of telescopic folds, the two ends of the telescopic plate 18 are respectively connected to the bottom frame plate 12 and the top frame plate 15, and a plurality of groups of air intake filters 19 are provided on the inner side of the telescopic plate 18.

[0025] In this embodiment, a screw rod 14 is rotatably connected to the inner side of the bottom frame plate 12, a bracket 20 is fixedly installed in the middle of the bottom frame plate 12, and long grooves are provided on both sides of the bracket 20; a bevel gear A21 is mounted on the rotating rod 17, and a bevel gear B22 meshing with the bevel gear A21 is provided on the top of the screw rod 14.

[0026] In this embodiment, a screw sleeve 23 is mounted on the screw rod 14, and both ends of the screw sleeve 23 are connected to an adjustment frame 16. The adjustment frame 16 is L-shaped and can be slidably connected to the long groove. The end of the adjustment frame 16 extends out of the long groove and is connected to the top frame plate 15. The top frame plate 15 can approach or move away from the bottom frame plate 12 when the screw rod 14 is running, and the telescopic plate 18 can be retracted or extended.

[0027] In this embodiment, the air intake filter structure also includes a track 25 and a vibrating dust removal pressure wheel 24 , wherein the track 25 has multiple sections and can be fixedly mounted on the bottom frame plate 12 and the top frame plate 15 , and a vibrating dust removal pressure wheel 24 is provided on the track 25 .

[0028] In this embodiment, the bottom end of the vibrating dust removal pressure wheel 24 is slidably connected to the track 25 through a self-propelled wheel. The vibrating dust removal pressure wheel 24 can move along the track 25 and vibrate the multiple groups of air intake filters 19 on the inner side of the telescopic plate 18 to cause the dust adsorbed thereon to fall off.

[0029] In the present embodiment, the above-mentioned pressurization method of using two-stage impellers in series to compress air step by step, on the one hand, increases the pressure ratio of the air compressor, and on the other hand effectively balances the axial forces at both ends, which can fully meet the requirements of the fuel cell air compressor; at the same time, an air intake filter assembly is provided at the air inlet end, which can filter dust impurities in the air, prevent dust from entering the cavity, and ensure the normal use of the motor; and in order to ensure the reusability of the filtering structure, the micro motor 13 can be used to drive the rotating rod 17, so that the rotating rod 17 is engaged with the bevel gear B22 through the bevel gear A21, so that the screw 14 is operated, and the screw sleeve 23 is driven by the screw 14 to move, so that the screw sleeve 23 drives the top frame plate 15, so that the top frame plate 15 is close to the bottom frame plate 12, and the telescopic plate 18 is contracted. At this time, the air intake filter 19 on the inner side of the telescopic plate 18 is also in a contracted state, and the self-propelled vibration dust removal pressure wheel 24 moves to vibrate multiple groups of air intake filters 19 to achieve the dust adsorbed on the air intake filter falling off.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed motor for a fuel cell air compressor with an air intake filter and self-cleaning function, characterized in that: The invention comprises a casing module (3), a volute module, a motor main shaft (6), an end cover, a high-speed rotor and an air intake filter structure, wherein the volute module is mounted on the casing module (3) and an end cover is mounted on the end of the casing module (3), and the volute module comprises a low-pressure volute (1) and a high-pressure volute (2) which are connected in series, wherein a low-pressure impeller (4) and a high-pressure impeller (5) are mounted on the inner sides of the low-pressure volute (1) and the high-pressure volute (2) respectively through a pull rod; the motor main shaft (6) is supported by a support structure, and a high-speed rotor is mounted on the motor main shaft (6); the air intake filter structure is mounted at the air inlet (301) of the casing module (3), and the air intake filter structure comprises a bottom frame plate (12), a micro motor (13 ), a screw (14), an air intake filter assembly, a top frame plate (15) and an adjustment frame (16), wherein the bottom frame plate (12) is fixed at the air inlet (301), the bottom frame plate (12) is provided with a through hole communicating with the air inlet (301), the inner side of the bottom frame plate (12) is movably connected with a rotating rod (17) via a rotating shaft, and the outer side of the bottom frame plate (12) is provided with a micro motor (13) for driving the rotating rod (17) to operate; the air intake filter assembly comprises a telescopic plate (18) and an air intake filter sheet (19), the telescopic plate (18) is freely telescopic and is formed by connecting a plurality of telescopic folds, and the two ends of the telescopic plate (18) are respectively connected to the bottom frame plate (12) and the top frame plate ( 15), a plurality of air intake filters (19) are provided on the inner side of the telescopic plate (18); a screw rod (14) is rotatably connected to the inner side of the bottom frame plate (12), a bracket (20) is fixedly mounted in the middle of the bottom frame plate (12), and long grooves are provided on both sides of the bracket (20); a bevel gear A (21) is sleeved on the rotating rod (17), and a bevel gear B (22) meshing with the bevel gear A (21) is provided at one end of the screw rod (14); a screw sleeve (23) is sleeved on the screw rod (14), and both ends of the screw sleeve (23) are connected to an adjustment frame (16), the adjustment frame (16) is L-shaped and is slidably connected to the long groove, and the end of the adjustment frame (16) extends out of the long groove and is connected to the top frame plate (15) When the screw rod (14) is running, the top frame plate (15) approaches or moves away from the bottom frame plate (12), and causes the telescopic plate (18) to contract or extend; the air intake filter structure also includes a track (25) and a vibrating dust removal pressure wheel (24), wherein the track (25) is provided with multiple sections and is fixedly mounted on the bottom frame plate (12) and the top frame plate (15), and a vibrating dust removal pressure wheel (24) is provided on the track (25); the bottom end of the vibrating dust removal pressure wheel (24) is slidably connected to the track (25) via a self-propelled wheel, and the vibrating dust removal pressure wheel (24) moves along the track (25) and causes the multiple groups of air intake filter sheets (19) inside the telescopic plate (18) to vibrate, so that dust adsorbed thereon falls off.

2. The high-speed motor for a fuel cell air compressor with an air intake filter and self-cleaning function according to claim 1 is characterized in that: The housing module (3) comprises an outer housing, an inner housing and a water cooling component, the outer surface of the inner housing and the inner surface of the outer housing are provided with a water cooling channel, the water cooling component is connected to the water cooling channel, and the water cooling component comprises a water inlet joint (10) and a water outlet joint (11) provided on the outside of the outer housing.

3. The high-speed motor for a fuel cell air compressor with an air intake filter and self-cleaning function according to claim 1, characterized in that: The support structure comprises a low-pressure side support unit and a high-pressure side support unit distributed at both ends of the motor main shaft (6), wherein the low-pressure side support unit comprises a low-pressure side radial air bearing (7), a low-pressure side radial air bearing seat and a low-pressure side radial air bearing sleeve, wherein the low-pressure side radial air bearing sleeve is wound around the outside of the motor main shaft (6), the low-pressure side radial air bearing (7) is arranged in the low-pressure side radial air bearing seat and wound around the outside of the low-pressure side radial air bearing sleeve, and the low-pressure side radial air bearing seat is arranged on the end cover by screws; the high-pressure side support unit comprises a high-pressure side radial air bearing (8), an air thrust bearing (9) and a high-pressure side radial air bearing sleeve, and the high-pressure side radial air bearing (8) is wound around the outside of the motor main shaft (6).

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