CN112564379B - Hydrogen corrosion prevention sealing device, hydrogen corrosion prevention motor and hydrogen circulating pump - Google Patents
Hydrogen corrosion prevention sealing device, hydrogen corrosion prevention motor and hydrogen circulating pump Download PDFInfo
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- CN112564379B CN112564379B CN202110188383.XA CN202110188383A CN112564379B CN 112564379 B CN112564379 B CN 112564379B CN 202110188383 A CN202110188383 A CN 202110188383A CN 112564379 B CN112564379 B CN 112564379B
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- hydrogen corrosion
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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
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
According to the hydrogen circulating pump, the hydrogen corrosion prevention sealing device is made of an insulated hydrogen corrosion prevention nonmetal synthetic material into the conical basin-shaped body, the stator and the rotor of the hydrogen corrosion prevention motor are separated, and hydrogen which is overflowed to the hydrogen corrosion prevention motor by the hydrogen circulating pump is isolated from the stator; the hydrogen corrosion resistant lining has a simple mounting structure; the conical basin-shaped structure can ensure the strength, the deformation caused by the rotation of the stator magnetic circuit and the rotor can not be generated, and the magnetic field conversion between the stator and the rotor can not be influenced. The hydrogen corrosion prevention motor reduces the risk of electric sparks generated by arc discharge of stator voltage by using the hydrogen corrosion prevention sealing device. And the stator adopts H type structure tooth, can obtain torque and the rotational speed of traditional flute profile stator structure twice, and the material quantity is little.
Description
Technical Field
The invention relates to the technical field of motor sealing, in particular to a hydrogen corrosion prevention sealing device, a hydrogen corrosion prevention motor and a hydrogen circulating pump.
Background
In the reaction process of the fuel cell, generally, through the action of the catalyst, hydrogen molecules at the anode are decomposed into two protons (proton) and two electrons (electron), wherein the protons are "attracted" to the other side of the membrane by oxygen, and the electrons form current through an external circuit and then reach the cathode. After the fuel cell reacts, a part of hydrogen is not converted, and the combustible and explosive gas is discharged into the air, which not only wastes energy, but also greatly reduces the energy conversion efficiency of the hydrogen fuel cell system. With the development of a hydrogen fuel cell system of a new energy automobile, the energy conversion efficiency requirement of the fuel cell automobile is higher and higher, and the recycling of the discharged hydrogen after the cell reaction becomes important. At present, a common proton exchange membrane fuel cell hydrogen circulating pump collects and pressurizes part of hydrogen to realize recycling.
Because the hydrogen circulating pump of the proton exchange membrane fuel cell is in a special environment, the hydrogen is flammable and explosive gas, and the collected hydrogen is easy to permeate into a cavity of the motor through the pressurizing circulating process to corrode an iron core and an insulating material in the motor, so that the service life of the motor is shortened, and even the motor is burnt down after the insulating material of the motor is damaged; meanwhile, hydrogen discharged after the battery reaction contains a large amount of water vapor, and the water vapor can also cause the corrosion of a stator core and the reduction of the insulation performance of a stator, so that short circuit and burning loss between stator windings occur.
The proton exchange membrane fuel cell hydrogen circulating pump can comprise a centrifugal booster pump, a cam booster pump/Roots booster pump, a claw booster pump, a diaphragm booster pump or a vortex booster pump, and the problem of hydrogen sealing is required to be considered no matter what type of hydrogen circulating pump, and hydrogen is not contacted with a motor as much as possible. Based on different forms of pumps, the claw type booster pump, the roots type and other positive displacement hydrogen circulating pumps are mostly sealed by sealing rings between a rotor chamber (hydrogen pressurizing chamber) and a transmission chamber and between the transmission chamber and a motor, for example, a claw type hydrogen circulating pump with the publication number of CN 110319004 a and a bearing middle-mounted hydrogen circulating pump with the publication number of CN 111173743 a are sealed schemes, but the two sealing schemes are both dynamic sealing forms, and along with the rotation of a transmission shaft, the sealing element and the shaft are always in contact friction, so that the sealing effect is greatly reduced while the sealing element is seriously abraded.
For the centrifugal hydrogen circulating pump, generally adopt the structure form that centrifugal pump head and motor directly link, have advantages such as compact structure, light in weight, reliability height, low noise. The existing motor configured by the centrifugal hydrogen circulating pump is divided into two types of protection without hydrogen insulation and protection with hydrogen insulation. The stator of the motor which is configured by the centrifugal hydrogen circulating pump without hydrogen insulation protection cannot be effectively protected, and the service life of the motor is short; the centrifugal hydrogen circulating pump with hydrogen isolation protection is provided with different motors, and some motors adopt tooth-shaped sealing between a pump head impeller and the motor, but the form can only reduce the hydrogen of the pump head from entering the motor and cannot completely isolate the hydrogen; some methods adopt a shielding sleeve, such as a scheme of a full-shielding high-speed centrifugal hydrogen circulating pump with an authorization publication number of CN 208702734U, but the shielding sleeve is a deep-barrel type complex structure, and is difficult to process and has a high manufacturing cost. Some of the sealing structures adopt a cylindrical lining and a radial O-shaped ring for sealing, such as a motor explosion-proof sealing structure with the publication number of CN 111668973A, and a motor and a gas compressor, the structure is easy to generate friction displacement along with motor vibration, airflow interference and rotor disturbance, and is easy to deform due to insufficient strength, so that sealing failure is finally caused.
Disclosure of Invention
The invention provides a hydrogen corrosion prevention sealing device, a hydrogen corrosion prevention motor and a hydrogen circulating pump.
The technical scheme of the invention is as follows:
the utility model provides an anti-hydrogen corrosion sealing device includes the toper basin form body that anti-hydrogen corrosion non-metallic synthetic material made, the pelvic floor portion external diameter of body is less than its top external diameter, pelvic floor portion central point puts and offers the internal diameter and is a bit bigger than the through-hole of rotor shaft, the top of body has the upper edge along its radial direction outside extension.
Preferably, the taper of the taper part of the body is not more than 5 degrees, and ribs for clamping the stator clamping grooves are symmetrically arranged on the center of the surface of the taper part.
Preferably, the rib extends from the bottom of the tub to the upper edge, and has a uniform thickness or is designed according to the shape of the stator slot.
Preferably, the upper edge and/or the basin bottom are/is provided with sealing and positioning bulges.
The utility model provides an anti-hydrogen corrosion motor, uses foretell anti-hydrogen corrosion sealing device to keep apart the stator and the rotor of motor, the pelvic floor portion of anti-hydrogen corrosion sealing device with one side end cover seal positioning of motor, the upper edge of anti-hydrogen corrosion sealing device with the opposite side end cover seal positioning of motor, the stator is kept apart in the airtight space that anti-hydrogen corrosion sealing device and the shell of motor constitute.
Preferably, the stator comprises a stator core and a stator winding, the stator core comprises a yoke part and a plurality of tooth parts which are symmetrically distributed along the center of the yoke part, the tooth parts are H-shaped structural teeth which are arranged along the radial direction of the yoke part, an outer slot hole and an inner slot hole of each H-shaped structural tooth jointly form a slot embedding groove of a winding coil, and a pair-insertion type insulating card is arranged in each slot embedding groove and is respectively inserted into the outer slot hole and the inner slot hole of each H-shaped structural tooth along the axial direction; and the outer side of the oppositely-inserted insulation card forms an annular clamping groove for winding the winding coil along the axial direction.
Preferably, the tail ends of the outer side slotted holes of the H-shaped structural teeth are overlapped with the outer surface of the yoke part, and the tail ends of the outer side slotted holes are mutually hooked with paired upper clamping teeth in the circumferential direction of the yoke part; the tail end of the inner side slotted hole of the H-shaped structure tooth forms a central hole of the stator structure, and the tail ends of the inner side slotted holes are mutually hooked with paired lower clamping teeth in the circumferential direction of the central hole; the distance between two lower clamping teeth of one H-shaped structure tooth is equal to the distance between one lower clamping tooth of the H-shaped structure tooth and the adjacent lower clamping tooth of the adjacent H-shaped structure tooth.
Preferably, the stator of the hydrogen corrosion resistant motor comprises a plurality of stator punching sheets which are stacked mutually along the axial direction, each stator punching sheet comprises the yoke portion and the tooth portion, and H-shaped structural teeth of each stator punching sheet are correspondingly overlapped to form a wire embedding groove.
The hydrogen circulating pump uses the hydrogen corrosion-resistant motor as a power source, and the part of the shaft of the rotor of the hydrogen corrosion-resistant motor, which extends out of the motor shell, is connected with a circulating impeller of the hydrogen circulating pump.
Compared with the prior art, the invention has the advantages that:
1. the invention relates to a hydrogen corrosion prevention sealing device, a hydrogen corrosion prevention motor and a hydrogen circulating pump.A conical basin-shaped body is made of an insulated hydrogen corrosion prevention nonmetal synthetic material, and a stator and a rotor of the motor are separated, namely hydrogen in the hydrogen circulating pump is isolated from the stator; the hydrogen corrosion resistant lining has a simple mounting structure; the strength can be ensured, the magnetic field conversion between the stator and the rotor is not influenced, the conical basin-shaped structure of the hydrogen corrosion prevention sealing device body can bear 3bar pressure, and deformation caused by the rotation of the stator magnetic circuit and the rotor can not be generated.
2. The invention relates to a hydrogen corrosion prevention motor which uses a hydrogen corrosion prevention sealing device to isolate a stator and a rotor of the motor, which is equivalent to adding a hydrogen corrosion prevention lining between the rotor and the stator of the motor, and the hydrogen corrosion prevention lining simultaneously has the following advantages: because the axial direction of the hydrogen corrosion prevention sealing device and the surface of the conical part are provided with the rib parts which are embedded with the stator notches, and the upper edges and/or the bottom of the basin are/is provided with the sealing and positioning bulges, the sealing performance of the axial direction and the radial direction is good, and the displacement can not occur due to vibration and gas disturbance; the hydrogen corrosion resistant lining can protect the motor winding from escaping from the annular clamping groove of the stator; the hydrogen corrosion resistant lining has good strength and is not easy to damage by adopting a parallel structure of the conical supports and the rib reinforcing ribs. Once hydrogen enters the motor from the pressurizing cavity, the hydrogen corrosion prevention sealing device can prevent the hydrogen from leaking into the stator, a second protection except the sealing of the machine shell is formed, and the hydrogen corrosion prevention sealing device and the sealing of the machine shell form two seals together to ensure that the hydrogen cannot leak out of the motor and into the atmosphere.
3. The hydrogen corrosion prevention sealing device adopts an insulation structure, the risk of electric sparks generated by voltage arc discharge of the stator is reduced, and once parts of the rotor part are damaged, the hydrogen corrosion prevention lining can prevent the whole motor from being burnt and damaged due to splashing of the rotating body to damage the stator.
4. The hydrogen corrosion prevention motor and the hydrogen circulating pump adopt H-shaped structural teeth, a winding coil is formed by winding wires in an annular clamping groove on the outer side of an oppositely-inserted insulation card in a wire embedding groove formed by an outer side groove hole and an inner side groove hole of the H-shaped structural teeth, one winding coil is wound on one H-shaped structural tooth, and when the winding is electrified, the spatial position of one H-shaped structural tooth forms two N/S magnetic poles tangential to the circumference of the stator; when 4 teeth (H-shaped structure teeth) exist on the yoke part, 8 magnetic poles can be generated, the torque and the rotating speed equivalent to those of the traditional 8-tooth stator structure can be obtained, the material consumption is small, and the size is reduced by nearly one time compared with that of the traditional structure; compared with a distributed winding stator, the rib of the hydrogen corrosion prevention sealing device is directly clamped into the winding slot, so that a slot wedge is not needed. And need not to draw the patch cord alone, a plurality of winding coils that connect in parallel on the stator can directly correspond the contact welding with the control panel, need not to walk the line at the terminal surface of stator structure, and the winding is extravagant less, also need not to set up insulating end plate, and the short copper line quantity of winding tip is few, and resistance is little, and calorific capacity is little, and motor weight is little, and the loss reduces, and easily makes.
Drawings
FIG. 1 is a schematic sectional view of an embodiment of the hydrogen corrosion prevention sealing device of the present invention;
FIG. 2 is a schematic three-dimensional view of another embodiment of the hydrogen corrosion protection sealing device of the present invention;
FIG. 3 is a schematic diagram of a top view of another embodiment of the hydrogen corrosion protection seal of the present invention;
fig. 4 is a schematic cross-sectional view of the hydrogen corrosion prevention motor of the present invention;
FIG. 5 is a schematic cross-sectional view of a hydrogen corrosion seal separating a stator and a rotor according to an embodiment of the hydrogen corrosion protected electric machine of the present invention;
FIG. 6 is a schematic cross-sectional view of a hydrogen corrosion seal separating a stator and a rotor of another embodiment of the hydrogen corrosion protected electric machine of the present invention;
FIG. 7 is a schematic diagram of a three-dimensional stator structure of the hydrogen corrosion-resistant motor of the present invention;
fig. 8 is a schematic structural view of the stator end face of the hydrogen corrosion-resistant motor of the present invention.
The reference numbers are listed below:
1-hydrogen corrosion resistant sealing device (hydrogen corrosion resistant lining), 11-body, 111-tub bottom, 112-conical part, 113-upper edge, 114-rib, 115-seal positioning projection, 1151-first seal positioning projection, 1152-second seal positioning projection,
2-stator, 21-stator core, 22-stator winding, 211-yoke, 212-H-shaped structural tooth (tooth part), 2121-outer slot, 21211-upper latch, 2122-inner slot, 21221-lower latch, 213-oppositely inserted insulation card, 2131-annular slot, 214-central hole, 215-notch,
3-rotor, 4-front end cover, 5-bearing, 6-motor shell, 7-rear end cover, 8-hydrogen corrosion prevention end cover and 9-O-shaped sealing ring.
Detailed Description
To facilitate an understanding of the invention, the invention is described in more detail below with reference to figures 1-8 and the specific examples.
Example 1
A kind of hydrogen corrosion-proof sealing device 1, as shown in figure-3, include the conical basin-shaped body 11 made of non-metallic synthetic material of hydrogen corrosion-proof (such as PEEK +30% GF polyetheretherketone +30% glass fiber material), the said conical basin-shaped body 11 includes the bottom of basin 111, conical portion 112 and upper edge 113, the minor diameter side of the said conical portion 112 (namely the bottom of basin 111 of the said body) seals and makes up the said bottom of basin 111, and the central position of the said bottom of basin 111 opens the hole, so as to make the rotor 3 shaft of the electrical machinery pass through smoothly; the upper edge 113 is located on the large diameter side of the tapered portion 112 (i.e., the top of the body 11), and is formed by extending the large diameter side thereof outward in the radial direction thereof.
Preferably, the taper of the tapered portion 112 of the body 11 is not more than 5 degrees, and a rib 114 that fits into a notch 215 of the stator 2 is provided on the surface of the tapered portion 112 in the axial direction thereof. The 6 ribs 114 are arranged on the outer surface of the tapered portion 112 in a central symmetry as shown in fig. 1.
Preferably, the rib 114 extends from the upper edge 113 to the pot portion 111, and has a uniform thickness.
Preferably, the upper rim 113 and/or the tub bottom 111 are provided with an annular seal positioning projection 115. The sealing and positioning protrusion 115 is annular and is matched with a positioning groove arranged on the front end cover 4 and/or the rear end cover 7 of the motor to isolate the stator 2 from the rotor 3.
Example 2
4-5, the above-mentioned hydrogen corrosion prevention sealing device 1 is used to isolate the stator 2 and the rotor 3 of the motor, the hydrogen corrosion prevention sealing device 1 is a hydrogen corrosion prevention lining at this time, the basin bottom 111 of the hydrogen corrosion prevention sealing device is mutually matched with the front positioning slot arranged on the front end cover 4 of the motor through the first sealing positioning bulge 1151 arranged thereon to realize sealing positioning, the upper edge 113 is sealed and positioned with the rear end cover 7 of the motor through the second sealing positioning bulge 1152 arranged thereon, and the stator 2 is isolated in the sealed space formed by the hydrogen corrosion prevention sealing device 1 and the housing 6 of the motor.
In the interior of the hydrogen corrosion prevention motor, hydrogen which is overflowed into the motor through a booster pump chamber only exists in a rotor chamber which is formed by the hydrogen corrosion prevention sealing device 1 (namely a hydrogen corrosion prevention lining), the front end cover 4 and the rear end cover 7, the rotor 3 is not provided with a coil and the like, and hydrogen corrosion prevention coating is easy to coat, so that the overflowed hydrogen cannot threaten the rotor 3, and double insurance is added, namely, the hydrogen corrosion prevention end cover 8 is additionally arranged on the rear side of the rear end cover 7, the hydrogen corrosion prevention end cover 8 and the rear end cover 7 are sealed through an O-shaped sealing ring 9, and the connecting parts of the front end cover 4 and the rear end cover 7 with the motor shell 6 are sealed through the O-shaped sealing ring, so that the hydrogen cannot be leaked into the outside air through the motor. And the damage of the overflowing hydrogen to the motor is only controlled on the bearing 5 for assisting the rotor 3 to rotate, and the maintenance cost of the motor is greatly reduced because the bearing 5 is a standard part and is easy to replace.
Preferably, in contrast to the above solutions, as shown in fig. 6 to 8, the stator 2 includes a stator core 21 and a stator winding 22, the stator core 21 includes a yoke portion 211 and a plurality of tooth portions 212 symmetrically distributed along the center of the yoke portion 211, the tooth portions 212 are H-shaped structural teeth 212 arranged along the radial direction of the yoke portion, an outer slot 2121 and an inner slot 2122 of one H-shaped structural tooth 212 together form a slot for inserting a winding coil, a pair-inserting type insulation card 213 is arranged in the slot, and the pair-inserting type insulation cards 213 are respectively inserted into the outer slot 2121 and the inner slot 2122 of the H-shaped structural tooth 212 in an axial direction; the outside of the opposite-insertion type insulation card 213 forms a ring-shaped slot 2131 for winding the winding coil in the axial direction. After the stator winding 22 is wound, the space position of one H-shaped structural tooth 212 forms two N/S magnetic poles tangential to the circumference of the stator 2; that is, when 4 teeth (H-shaped structure teeth) 212 are present on the yoke 211, 8 magnetic poles as shown in fig. 8 can be generated, that is, torque and rotation speed equivalent to those of the conventional 8-tooth stator structure can be obtained, and the material consumption is small, and the size is reduced by nearly one time compared with the conventional structure; compared with a distributed winding stator, the slot wedge is not needed, and a better slot is formed for clamping the rib part 114 of the hydrogen corrosion prevention sealing device 1.
Preferably, the stator core 21 of the hydrogen corrosion resistant motor includes a plurality of stator laminations stacked axially, each stator lamination includes the yoke portion 211 and the tooth portion 212, and the H-shaped structure teeth 212 of each stator lamination are correspondingly overlapped to form a slot.
Preferably, the tail end of the outer slot 2121 of the H-shaped structural tooth 212 coincides with the outer surface of the yoke 211, and the tail ends of the outer slot 2121 are hooked with each other in the circumferential direction of the yoke 211 to form a pair of upper latch teeth 21211; the tail end of the inner slot 2122 of the H-shaped structural tooth 212 forms a central hole 214 of the stator structure, and the tail end of the inner slot 2122 is hooked with a pair of lower latch teeth 21221 in the circumferential direction of the central hole 214; the distance between two lower latches of one H-shaped structural tooth 212 is equal to the distance between one lower latch of the H-shaped structural tooth and the adjacent lower latch of the adjacent H-shaped structural tooth, and a notch 215 is formed between every two adjacent lower latches. Namely, a stator 2 with 4H-shaped structural teeth 212, 8 slots 215 with equal width are formed at the position of the central hole 214, so that 8 ribs 114 of the hydrogen corrosion prevention sealing device with central symmetry distribution can be clamped into the slots 215, on one hand, the winding coils of the stator winding 22 can be protected and the stacked stator laminations can be used for framework support, and on the other hand, the strength of the conical part 12 of the hydrogen corrosion prevention sealing device 1 can be enhanced, so that the conical part cannot be deformed due to the rotation of the rotor 3 or the vibration of the motor.
Example 3
The hydrogen circulating pump uses the hydrogen corrosion-resistant motor as a power source, and the part of the shaft of the rotor 3 of the hydrogen corrosion-resistant motor, which extends out of the motor shell 6, is connected with a circulating impeller of the hydrogen circulating pump.
It should be noted that the above-described embodiments may enable those skilled in the art to more fully understand the present invention, but do not limit the present invention in any way. Therefore, although the present invention has been described in detail with reference to the drawings and examples, it will be understood by those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A kind of hydrogen corrosion prevention electrical machinery, use the sealing means of hydrogen corrosion prevention to isolate stator and rotor of the said electrical machinery, characterized by that, the said sealing means of hydrogen corrosion prevention includes the body of conical basin shape made of non-metallic composite material of hydrogen corrosion prevention, the external diameter of bottom of the basin of the said body is smaller than its top external diameter, the central position of the said bottom of basin has bore diameter slightly larger than the through hole of the rotor shaft, the top of the said body extends outwardly along its radial direction and has upper edges; the basin bottom of the hydrogen corrosion prevention sealing device is positioned with the end cover at one side of the motor in a sealing way, the upper edge of the hydrogen corrosion prevention sealing device is positioned with the end cover at the other side of the motor in a sealing way, and the stator is isolated in a sealed space formed by the hydrogen corrosion prevention sealing device and the shell of the motor; the stator comprises a stator core and a stator winding, the stator core comprises a yoke part and a plurality of tooth parts which are distributed along the center of the yoke part symmetrically, and the tooth parts are H-shaped structural teeth which are arranged along the radial direction of the yoke part; the outer side slotted hole and the inner side slotted hole of the H-shaped structural tooth jointly form a slotted groove of a winding coil, a plug-in type insulation card is arranged in the slotted groove, and the plug-in type insulation card is respectively inserted into the outer side slotted hole and the inner side slotted hole of the H-shaped structural tooth along the axial direction; an annular clamping groove used for winding the winding coil along the axial direction is formed on the outer side of the oppositely-inserted insulating clamp; the tail ends of the slots on the outer sides of the H-shaped structure teeth coincide with the outer surface of the yoke part, when a winding coil is electrified, the space position of one H-shaped structure tooth forms two N/S magnetic poles tangential to the circumference of the stator, the tail ends of the slots on the inner sides of the H-shaped structure teeth form a central hole of the stator structure, and the tail ends of the slots on the inner sides are mutually hooked with paired lower clamping teeth in the circumferential direction of the central hole; rib parts used for clamping the stator clamping groove are symmetrically arranged at the center of the surface of the conical part of the body; the rib part is clamped in a winding notch formed by the lower clamping teeth of each H-shaped structure tooth.
2. The hydrogen corrosion resistant motor of claim 1 wherein the taper of the tapered portion of the body is no greater than 5 degrees.
3. The hydrogen corrosion resistant motor of claim 2 wherein the ribs extend from the bottom of the tub up to the top edge and are uniformly thick or designed according to the shape of the stator slots.
4. The hydrogen corrosion resistant motor of claim 1 wherein said upper rim and/or said tub bottom is provided with a seal positioning projection.
5. The hydrogen corrosion-resistant motor according to claim 1, wherein the tail ends of the outer slots are hooked with each other with a pair of upper teeth in the circumferential direction of the yoke; the distance between two lower clamping teeth of one H-shaped structure tooth is equal to the distance between one lower clamping tooth of the H-shaped structure tooth and the adjacent lower clamping tooth of the adjacent H-shaped structure tooth.
6. The hydrogen corrosion prevention motor according to claim 1, comprising a plurality of stator laminations stacked on each other in an axial direction, each stator lamination comprising the yoke portion and the tooth portion, and H-shaped structure teeth of each stator lamination are correspondingly overlapped to form a coil inserting groove.
7. A hydrogen circulation pump, characterized in that the hydrogen corrosion-resistant motor according to any one of claims 1 to 6 is used as a power source, and a portion of a shaft of a rotor of the hydrogen corrosion-resistant motor, which protrudes from a casing of the motor, is connected to a circulation impeller of the hydrogen circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110188383.XA CN112564379B (en) | 2021-02-19 | 2021-02-19 | Hydrogen corrosion prevention sealing device, hydrogen corrosion prevention motor and hydrogen circulating pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110188383.XA CN112564379B (en) | 2021-02-19 | 2021-02-19 | Hydrogen corrosion prevention sealing device, hydrogen corrosion prevention motor and hydrogen circulating pump |
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| Publication Number | Publication Date |
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| CN112564379A CN112564379A (en) | 2021-03-26 |
| CN112564379B true CN112564379B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110188383.XA Active CN112564379B (en) | 2021-02-19 | 2021-02-19 | Hydrogen corrosion prevention sealing device, hydrogen corrosion prevention motor and hydrogen circulating pump |
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| US20230188024A1 (en) | 2021-12-09 | 2023-06-15 | Air Products And Chemicals, Inc. | Hydrogen Expander Magnetic Generator Apparatus and Method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208702734U (en) * | 2018-05-17 | 2019-04-05 | 北京艾尔航空科技有限责任公司 | A kind of full-shield formula high speed centrifugation hydrogen gas circulating pump |
| CN110566459A (en) * | 2019-09-11 | 2019-12-13 | 烟台东德实业有限公司 | Hydrogen circulating pump assembly |
| CN111173743A (en) * | 2020-02-03 | 2020-05-19 | 烟台东德实业有限公司 | Put formula hydrogen circulating pump in bearing |
| CN211606263U (en) * | 2020-04-17 | 2020-09-29 | 沈阳耐蚀合金泵股份有限公司 | Vertical shielding device, shielding motor and shielding pump |
| CN111668973A (en) * | 2020-06-15 | 2020-09-15 | 烟台东德实业有限公司 | Motor explosion-proof sealing structure, motor and gas compressor |
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