CN219420422U - Hydrogen energy air compressor motor - Google Patents
Hydrogen energy air compressor motor Download PDFInfo
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- CN219420422U CN219420422U CN202320253668.1U CN202320253668U CN219420422U CN 219420422 U CN219420422 U CN 219420422U CN 202320253668 U CN202320253668 U CN 202320253668U CN 219420422 U CN219420422 U CN 219420422U
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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model provides a motor of a hydrogen energy air compressor, which comprises: a motor housing; a stator assembly disposed within the motor housing and extending in an axial direction; and a rotor assembly disposed within the stator assembly and extending in an axial direction; wherein at least one surface of the stator assembly, the motor housing and the rotor assembly is coated with an insulating coating.
Description
Technical Field
The utility model relates to the technical field of new energy, in particular to a motor of a hydrogen energy air compressor.
Background
At present, the development of new energy fuel cell automobiles is considered as an important link for the power transformation of traffic energy. In order to ensure the normal operation of the fuel cell engine, the engine generally requires auxiliary systems such as a hydrogen supply subsystem, an air supply subsystem, a circulating water cooling management subsystem and the like. Numerous studies have shown that high pressure, high flow air supply has a significant effect on improving the power output of existing fuel cell engines. Therefore, the centrifugal air compressor is an energy conversion device that achieves this goal, and is one of the important components of the air supply system of a fuel cell engine, in which air is typically pressurized before it enters the engine.
The prior single-stage high-speed centrifugal air compressor mainly comprises a shell, a stator and a main shaft, wherein a bearing seat for supporting the main shaft is arranged on the inner side of one end of the shell, a diffuser is arranged on the outer side of the bearing seat, the main shaft penetrates out of the diffuser to be provided with a worm wheel, a volute is arranged outside the worm wheel, an air inlet and an air outlet are formed in the volute, and a thrust disc is sleeved on the main shaft between the diffuser and the bearing seat.
In order to meet the requirements of high-voltage leakage current in national standards, the leakage current is reduced by utilizing the insulativity of air, so that all components in the motor are required to have a safe distance, the whole size of the motor is too large, and the capacity range and the application field of the hydrogen energy air compressor are further reduced.
Disclosure of Invention
The utility model aims to provide a motor of a hydrogen energy air compressor, which aims to solve the problem that the size of the motor is overlarge due to the electric safety distance of the existing hydrogen energy air compressor.
In order to solve the technical problems, the utility model provides a motor of a hydrogen energy air compressor, comprising:
a motor housing;
a stator assembly disposed within the motor housing and extending in an axial direction; and
a rotor assembly disposed within the stator assembly and extending in an axial direction;
wherein at least one surface of the stator assembly, the motor housing and the rotor assembly is coated with an insulating coating.
Optionally, in the hydrogen energy air compressor motor, the method further includes:
a thrust bearing configured to be disposed between the end cap and the rotor assembly; and
an end cap configured to be positioned at a first end of a motor housing and form a sealed space with the motor housing, comprising:
a cover configured to cooperate with the first end of the motor housing to cover a rim of the motor housing;
a protrusion configured to be located at an outer center of the cover body;
a stiffening ring configured to extend into the motor housing and wrap around the rotor assembly.
Optionally, in the hydrogen energy air compressor motor, the stator assembly includes:
the stator shaft assembly is a circular cylinder to wrap the rotor assembly, and two end surfaces of the stator shaft assembly are connected with a stator coil; and
the stator coils are two in number and are respectively distributed at two ends of the stator shaft assembly; the rotor is a circular cylinder, and the inner side wall is arranged opposite to the rotor component or the reinforcing ring.
Optionally, in the hydrogen energy air compressor motor, the rotor assembly is a shaft assembly;
the shaft assembly has a plurality of sections of different diameter post segments, comprising:
a first column section passing through the cover and the protrusion, and having a side wall opposite to the thrust bearing;
the second column section, its shaft shoulder arranges the thrust bearing, and is wrapped up by the strengthening ring, make the outer wall of the strengthening ring opposite to stator coil;
a third column segment wrapped by the stator shaft assembly;
a fourth column section wrapped by an inner annular projection of the second end of the motor housing;
a fifth column section passing through the second end of the motor housing;
the diameter of the third column section is larger than that of the second column section and the fourth column section;
the diameter of the second column section is larger than that of the first column section;
the diameter of the fourth column section is greater than the diameter of the fifth column section.
Optionally, in the hydrogen energy air compressor motor, the stator coil includes a first coil;
the first end of the first coil is the end far away from the stator shaft assembly and is arranged opposite to the cover body to form a first gap;
the outer side wall of the first coil is arranged opposite to the motor shell to form a second gap;
the inner side wall of the first coil and the reinforcing ring are arranged oppositely to form a third gap;
the second end of the first coil is one end close to the stator shaft assembly, an annular notch is formed in the outer side of the second coil, and a fourth gap is formed between the second end and the first end face of the stator shaft assembly.
Optionally, in the hydrogen energy air compressor motor, the stator coil includes a second coil;
the second end of the second coil is one end close to the stator shaft assembly, an annular notch is formed in the outer side of the second end of the second coil, and a fifth gap is formed between the second end of the stator shaft assembly and the second end face of the second coil;
the outer side wall of the second coil is arranged opposite to the motor shell to form a sixth gap;
the inner side wall of the second coil is arranged opposite to the annular protrusion at the inner end of the motor shell to form a seventh gap;
the first end of the second coil is one end far away from the stator shaft assembly, and is arranged opposite to the second end of the motor shell to form an eighth gap.
Optionally, in the hydrogen energy air compressor motor, the width of the first gap is 1-2mm, the width of the second gap is 1-2mm, the width of the third gap is 1-2mm, the width of the fourth gap is 1-2mm, the width of the fifth gap is 1-2mm, the width of the sixth gap is 1-2mm, the width of the seventh gap is 1-2mm, and the width of the eighth gap is 1-2mm.
Optionally, in the hydrogen energy air compressor motor, the insulating coating is a high-temperature resistant insulating coating.
The inventor of the utility model finds through research that compared with the common motor insulation scheme, the hydrogen energy air compressor motor insulation scheme is characterized in that: when the expander is connected with the air compressor, the mixed gas from the fuel cell enters the expander, the cost of the mixed gas mainly comprises liquid water, vapor water, nitrogen, a small amount of oxygen, a small amount of hydrogen and the like, the mixed gas in the expander can leak into a motor cavity from a gap of a motor main shaft of the air compressor, the stator and the main shaft of the motor are corroded, and the service life of the motor is influenced. Therefore, the motor insulation scheme of the existing hydrogen energy air compressor needs to set a larger safety distance, for example: the gap between the outer coil of the motor stator and the stator core end plate and the motor shell is generally more than 3mm; the clearance between the inside of the coil and the rotor and other structures is also greater than 3mm. For some motors that are used at high altitudes, the clearance requirement is greater.
The inventor of the present utility model further found that the larger safety distance has little effect on the motors in other industries, but that the larger clearance between the coil and other parts (especially the motor housing) in the hydrogen energy industry causes the inner diameter of the coil to be larger and the inner diameter to be smaller, further causes the height of the coil to be higher, and further adds the clearance at the two axial ends of the coil, thereby causing the motor housing and the rotor to be increased by about 10 mm. Two problems are brought about by increasing the length of the rotor by about 10 mm; the weight of the rotor is increased, the maximum rotating speed of the rotor is reduced, the capacity range of the hydrogen energy air compressor is reduced, and the application field is reduced.
Based on the insight, the utility model provides the hydrogen energy air compressor motor, and the stator assembly, the motor shell and at least one surface of the rotor assembly are coated with the insulating coating to replace part of air insulation, so that the gap between the stator coil and surrounding parts can be changed, the height of the stator coil is reduced, the length and the weight of the rotor assembly are reduced, the maximum rotating speed of the rotor is improved in an economical mode, the capacity range of the hydrogen energy compressor is enlarged, and the application field of the air compressor is enlarged.
Drawings
FIG. 1 is a schematic diagram of a hydrogen energy air compressor motor according to an embodiment of the present utility model;
the figure shows: 1-a stator assembly; 2-a motor housing; 3-a rotor assembly; 4-thrust bearings; 5-end caps; 6, a cover body; 7-a protrusion; 8-reinforcing rings; 9-a stator shaft assembly; 10-a first bobbin; 11-a second coil; 12-an inner annular projection; 13-a first gap; 14-a second gap; 15-a third gap; 16-fourth gap; 17-fifth gap; 18-sixth gap; 19-seventh gap; 20 eighth gap.
Detailed Description
The utility model is further elucidated below in connection with the embodiments with reference to the drawings.
It should be noted that the components in the figures may be shown exaggerated for illustrative purposes and are not necessarily to scale. In the drawings, identical or functionally identical components are provided with the same reference numerals.
In the present utility model, unless specifically indicated otherwise, "disposed on …", "disposed over …" and "disposed over …" do not preclude the presence of an intermediate therebetween. Furthermore, "disposed on or above" … merely indicates the relative positional relationship between the two components, but may also be converted to "disposed under or below" …, and vice versa, under certain circumstances, such as after reversing the product direction.
In the present utility model, the embodiments are merely intended to illustrate the scheme of the present utility model, and should not be construed as limiting.
In the present utility model, the adjectives "a" and "an" do not exclude a scenario of a plurality of elements, unless specifically indicated.
It should also be noted herein that in embodiments of the present utility model, only a portion of the components or assemblies may be shown for clarity and simplicity, but those of ordinary skill in the art will appreciate that the components or assemblies may be added as needed for a particular scenario under the teachings of the present utility model. In addition, features of different embodiments of the utility model may be combined with each other, unless otherwise specified. For example, a feature of the second embodiment may be substituted for a corresponding feature of the first embodiment, or may have the same or similar function, and the resulting embodiment would fall within the disclosure or scope of the disclosure.
It should also be noted herein that, within the scope of the present utility model, the terms "identical", "equal" and the like do not mean that the two values are absolutely equal, but rather allow for some reasonable error, that is, the terms also encompass "substantially identical", "substantially equal". By analogy, in the present utility model, the term "perpendicular", "parallel" and the like in the table direction also covers the meaning of "substantially perpendicular", "substantially parallel".
The numbers of the steps of the respective methods of the present utility model are not limited to the order of execution of the steps of the methods. The method steps may be performed in a different order unless otherwise indicated.
The motor of the hydrogen energy air compressor provided by the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present utility model will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.
The utility model aims to provide a motor of a hydrogen energy air compressor, which aims to solve the problem that the size of the motor is overlarge due to the electric safety distance of the existing hydrogen energy air compressor.
In order to achieve the above object, the present utility model provides a hydrogen energy air compressor motor, comprising: a motor housing; a stator assembly disposed within the motor housing and extending in an axial direction; and a rotor assembly disposed within the stator assembly and extending in an axial direction; wherein at least one surface of the stator assembly, the motor housing and the rotor assembly is coated with an insulating coating.
Fig. 1 provides an embodiment of the present utility model, which shows a structure of a motor of a hydrogen energy air compressor, comprising: a motor housing 2; a stator assembly 1 disposed within the motor housing 2 and extending in an axial direction; and a rotor assembly 3 disposed within the stator assembly 1 and extending in an axial direction; wherein at least one surface of the stator assembly 1, the motor housing 2 and the rotor assembly 3 is coated with an insulating coating.
As shown in fig. 1, in the hydrogen energy air compressor motor, further includes: a thrust bearing 4 configured to be disposed between the end cap 5 and the rotor assembly 3; and an end cap 5 configured to be positioned at a first end of the motor housing 2 and form a sealed space with the motor housing 2, comprising: a cover 6 configured to cooperate with the first end of the motor housing 2 to cover a rim of the motor housing; a protrusion 7 disposed at the outer center of the cover 6; the reinforcement ring 8 is arranged deep into the motor housing and wraps around the rotor assembly 3. In the hydrogen energy air compressor motor, the stator assembly includes: the stator shaft assembly 9 is a circular cylinder to wrap the rotor assembly 3, and two end surfaces of the stator shaft assembly are connected with a stator coil; the stator coils are distributed at two ends of the stator shaft assembly respectively; the rotor is a circular cylinder, and the inner side wall is arranged opposite to the rotor component or the reinforcing ring.
Specifically, in the hydrogen energy air compressor motor, the rotor assembly is a shaft assembly; the shaft assembly has a plurality of sections of different diameter post segments, comprising: a first column section passing through the cover and the protrusion, and having a side wall opposite to the thrust bearing; a second column section, the shaft shoulder of which is provided with a thrust bearing 4 and is wrapped by a reinforcing ring 8, so that the outer wall of the reinforcing ring is opposite to the stator coil; a third column segment wrapped by the stator shaft assembly; a fourth pole segment which is surrounded by an inner annular projection 12 at the second end of the motor housing; a fifth column section passing through the second end of the motor housing; wherein the diameter of the third column section is greater than the diameters of the second column section and the fourth column section; the diameter of the second column section is larger than that of the first column section; the diameter of the fourth column section is greater than the diameter of the fifth column section.
Further, in the hydrogen energy air compressor motor, the stator coil includes a first coil 10; the first end of the first coil is the end far away from the stator shaft assembly 9 and is arranged opposite to the cover body 6 to form a first gap 13; the outer side wall of the first coil is arranged opposite to the motor shell 2 to form a second gap 14; the inner side wall of the first coil is arranged opposite to the reinforcing ring 8 to form a third gap 15; the second end of the first coil is an end close to the stator shaft assembly 9, an annular notch is formed on the outer side of the second coil, and a fourth gap 16 is formed between the second end and the first end face of the stator shaft assembly 9.
Further, in the hydrogen energy air compressor motor, the stator coil includes a second coil 11; the second end of the second coil 11 is an end close to the stator shaft assembly 9, an annular notch is formed in the outer side of the second end of the second coil, and a fifth gap 17 is formed between the second end of the stator shaft assembly 9 and the second end; the outer side wall of the second coil 11 is arranged opposite to the motor housing 2 to form a sixth gap 18; the inner side wall of the second coil 11 is arranged opposite to the annular protrusion 12 at the inner end of the motor housing to form a seventh gap 19; the first end of the second coil 11 is an end far away from the stator shaft assembly 9, and is disposed opposite to the second end of the motor housing 2, forming an eighth gap 20.
Specifically, in the hydrogen energy air compressor motor, the width of the first gap is 1-2mm, the width of the second gap is 1-2mm, the width of the third gap is 1-2mm, the width of the fourth gap is 1-2mm, the width of the fifth gap is 1-2mm, the width of the sixth gap is 1-2mm, the width of the seventh gap is 1-2mm, and the width of the eighth gap is 1-2mm. In the hydrogen energy air compressor motor, the insulating coating is a high-temperature-resistant insulating coating.
The inventors of the present utility model found by study that: the higher the rotor assembly mode, the faster the rotor assembly can turn; according to a rotor mode calculation formula, f=2pi (K/m)/(1/2,K) is rigidity, and m is rotor mass; i.e. the rotor mode is proportional to the stiffness and inversely proportional to the rotor mass. The K value is smaller as the rotor length is longer, the smaller the length is, and the larger the K value is. Therefore, the utility model adopts the insulation property that the insulation property of the insulation coating is used for replacing air by coating a layer of high-temperature resistant insulation coating on the inner surface of the part around the coil; the widths of the first to eighth gaps shown in fig. 1 are reduced, and the design pitch ensures insulation.
According to the utility model, the high-temperature-resistant insulating coating is coated to reduce the gap between the coil and surrounding parts, reduce the length of the rotor assembly, lighten the weight of the rotor assembly, improve the mode of the rotor assembly, improve the highest running rotating speed of the rotor, enlarge the capacity range of the air compressor, and be applied to more application fields.
In summary, the foregoing embodiments describe in detail different configurations of the motor of the hydrogen energy air compressor, and of course, the present utility model includes, but is not limited to, the configurations listed in the foregoing embodiments, and any matters of changing the configurations provided in the foregoing embodiments fall within the scope of the present utility model. One skilled in the art can recognize that the above embodiments are illustrative.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system disclosed in the embodiment, the description is relatively simple because of corresponding to the method disclosed in the embodiment, and the relevant points refer to the description of the method section.
The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (8)
1. A hydrogen energy air compressor motor, comprising:
a motor housing;
a stator assembly disposed within the motor housing and extending in an axial direction; and
a rotor assembly disposed within the stator assembly and extending in an axial direction, wherein a surface of at least one of the stator assembly, the motor housing, and the rotor assembly is coated with an insulating coating.
2. The hydrogen-powered air compressor motor of claim 1, further comprising:
a thrust bearing configured to be disposed between the end cap and the rotor assembly; and
an end cap configured to be positioned at a first end of a motor housing and form a sealed space with the motor housing, comprising:
a cover configured to cooperate with the first end of the motor housing to cover a rim of the motor housing;
a protrusion configured to be located at an outer center of the cover body;
a stiffening ring configured to extend into the motor housing and wrap around the rotor assembly.
3. The hydrogen energy air compressor motor of claim 2, wherein the stator assembly comprises:
the stator shaft assembly is a circular cylinder to wrap the rotor assembly, and two end surfaces of the stator shaft assembly are connected with a stator coil; and
the stator coils are two in number and are respectively distributed at two ends of the stator shaft assembly; the rotor is a circular cylinder, and the inner side wall is arranged opposite to the rotor component or the reinforcing ring.
4. The hydrogen energy air compressor motor of claim 3, wherein the rotor assembly is a shaft assembly;
the shaft assembly has a plurality of sections of different diameter post segments, comprising:
a first column section passing through the cover and the protrusion, and having a side wall opposite to the thrust bearing;
the second column section, its shaft shoulder arranges the thrust bearing, and is wrapped up by the strengthening ring, make the outer wall of the strengthening ring opposite to stator coil;
a third column segment wrapped by the stator shaft assembly;
a fourth column section wrapped by an inner annular projection of the second end of the motor housing;
a fifth column section passing through the second end of the motor housing;
the diameter of the third column section is larger than that of the second column section and the fourth column section;
the diameter of the second column section is larger than that of the first column section;
the diameter of the fourth column section is greater than the diameter of the fifth column section.
5. The hydrogen-powered air compressor motor of claim 4, wherein the stator coil includes a first coil;
the first end of the first coil is the end far away from the stator shaft assembly and is arranged opposite to the cover body to form a first gap;
the outer side wall of the first coil is arranged opposite to the motor shell to form a second gap;
the inner side wall of the first coil and the reinforcing ring are arranged oppositely to form a third gap;
the second end of the first coil is one end close to the stator shaft assembly, an annular notch is formed in the outer side of the second coil, and a fourth gap is formed between the second end and the first end face of the stator shaft assembly.
6. The hydrogen-powered air compressor motor of claim 4, wherein the stator coil includes a second coil;
the second end of the second coil is one end close to the stator shaft assembly, an annular notch is formed in the outer side of the second end of the second coil, and a fifth gap is formed between the second end of the stator shaft assembly and the second end face of the second coil;
the outer side wall of the second coil is arranged opposite to the motor shell to form a sixth gap;
the inner side wall of the second coil is arranged opposite to the annular protrusion at the inner end of the motor shell to form a seventh gap;
the first end of the second coil is one end far away from the stator shaft assembly, and is arranged opposite to the second end of the motor shell to form an eighth gap.
7. The hydrogen energy air compressor motor of claim 1, wherein the first gap has a width of 1-2mm, the second gap has a width of 1-2mm, the third gap has a width of 1-2mm, the fourth gap has a width of 1-2mm, the fifth gap has a width of 1-2mm, the sixth gap has a width of 1-2mm, the seventh gap has a width of 1-2mm, and the eighth gap has a width of 1-2mm.
8. The hydrogen energy air compressor motor of claim 1, wherein the insulating coating is a high temperature resistant insulating coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320253668.1U CN219420422U (en) | 2023-02-20 | 2023-02-20 | Hydrogen energy air compressor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320253668.1U CN219420422U (en) | 2023-02-20 | 2023-02-20 | Hydrogen energy air compressor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219420422U true CN219420422U (en) | 2023-07-25 |
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ID=87234252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320253668.1U Active CN219420422U (en) | 2023-02-20 | 2023-02-20 | Hydrogen energy air compressor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219420422U (en) |
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2023
- 2023-02-20 CN CN202320253668.1U patent/CN219420422U/en active Active
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