CN218387067U - Motor element, compressor and air conditioning unit - Google Patents
Motor element, compressor and air conditioning unit Download PDFInfo
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- CN218387067U CN218387067U CN202222648814.9U CN202222648814U CN218387067U CN 218387067 U CN218387067 U CN 218387067U CN 202222648814 U CN202222648814 U CN 202222648814U CN 218387067 U CN218387067 U CN 218387067U
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Abstract
The utility model provides a motor element, compressor and air conditioning unit. The motor assembly includes a radial gas bearing; a thrust gas bearing; it includes two at least spare parts to predetermine the structure, be provided with gas passage on the spare part, and part gas passage communicates in proper order and forms first air feed runner, part gas passage communicates in proper order and forms second air feed runner is two gas passage's intercommunication position department is around there being seal structure. The utility model provides a motor element, compressor and air conditioning unit utilizes seal structure to seal gas passage's intercommunication position to guarantee the leakproofness of the first air feed runner and the second air feed runner that form between the gas passage, make radial gas bearing and thrust gas bearing homoenergetic obtain stable air supply and supply with, thereby realize higher bearing capacity and better stability.
Description
Technical Field
The utility model relates to a drive arrangement technical field, especially a motor element, compressor and air conditioning unit.
Background
At present, the number of the air suspension bearings on the market is two, one is dynamic pressure air suspension bearing, and the other is static pressure air suspension bearing. The dynamic pressure air suspension bearing does not need an external air source, has a simple structure, and has certain abrasion when the bearing is in contact with the rotor in the starting and stopping process. The static pressure gas suspension bearing needs an external gas source with certain pressure to form a gas film with bearing capacity on the surface of the bearing, the static pressure gas suspension compressor is started or stopped, a rotor is in a suspension state, the static pressure gas suspension bearing really achieves the excellent characteristics of no contact and no heat generation, a radial gas bearing needs to be arranged in a motor to support a rotating shaft and limit a thrust gas bearing, two gas bearings need independent gas supply runners, the gas runners are generally arranged on parts and spliced to form the gas supply runners in the prior art, the problem of leakage at the splicing positions of the gas runners is solved, the sealing effect of the gas supply runners is low, the problem of poor supporting limiting effect of the radial gas bearing and the thrust gas bearing is caused, and finally the stability of the motor is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem of poor stability of the motor in the prior art, the motor assembly, the compressor and the air conditioning unit are provided, wherein the sealing structure is used for sealing the connecting position of the gas flow passage to improve the sealing effect and stability.
An electric machine assembly comprising:
a radial gas bearing;
a thrust gas bearing;
the radial gas bearing and the thrust gas bearing are arranged on the preset structure, a first gas supply flow channel and a second gas supply flow channel are arranged in the preset structure, the first gas supply flow channel is communicated with the radial gas bearing, and the second gas supply flow channel is communicated with the thrust gas bearing;
it includes two at least spare parts to predetermine the structure, be provided with gas passage on the spare part, and part gas passage communicates in proper order and forms first air feed runner, part gas passage communicates in proper order and forms second air feed runner is two gas passage's intercommunication position department is around there being seal structure.
The part is provided with matching surfaces, the communication port of each gas channel is arranged on the matching surfaces, in the two parts, the gas channels are mutually communicated, one matching surface of each part is attached to the other matching surface of each part, and the sealing structure is arranged between the two parts and is positioned at the matching surface.
The spare part is provided with the mounting groove that encircles in the intercommunication mouth outside of gas passage, seal structure set up in the mounting groove, just seal structure's thickness is greater than the thickness of mounting groove.
The motor assembly comprises a shell and a bearing seat, the radial gas bearing and the thrust gas bearing are arranged on the shell through the bearing seat, and the bearing seat and the shell jointly form the preset structure.
The motor element is applied to the interior of the compressor, the compressor comprises a diffuser, the thrust gas bearing is located between the diffuser and the bearing seat, the diffuser is arranged on the shell, a third gas supply flow channel is arranged on the diffuser, one end of the third gas supply flow channel is communicated with the second gas supply flow channel, the other end of the third gas supply flow channel is communicated with the thrust gas bearing, and a sealing structure is encircled at the position where the third gas supply flow channel is communicated with the thrust gas bearing.
The radial gas bearing with it is provided with seal structure to predetermine between the structure, just seal structure surround in first air feed runner with radial gas bearing's intercommunication position department.
The preset structure is provided with a first matching surface, a first air supply channel is formed on the first matching surface and provided with a first air supply outlet, the radial air bearing is attached to the first matching surface, and the sealing structure is arranged between the radial air bearing and the first matching surface.
Be provided with radial gas supply hole on the radial gas bearing, first gas supply export with radial gas supply hole intercommunication, just the axis in radial gas supply hole with the axis collineation of first gas supply export.
And a sealing structure is arranged between the thrust gas bearing and the preset structure, and the sealing structure surrounds the communication position between the second gas supply flow passage and the thrust gas bearing.
The preset structure is provided with a second matching surface, a second gas supply channel is formed on the second matching surface and is provided with a second gas supply outlet, the thrust gas bearing is attached to the second matching surface, and the sealing structure is arranged between the thrust gas bearing and the second matching surface.
The thrust gas bearing is provided with a thrust gas supply hole, the thrust gas supply hole is communicated with the second gas supply outlet, and the axis of the thrust gas supply hole is collinear with the axis of the second gas supply outlet.
The sealing structure comprises an O-shaped sealing ring.
A compressor comprises the motor assembly.
An air conditioning unit, includes above-mentioned motor element or above-mentioned compressor.
The utility model provides a motor element, compressor and air conditioning unit, utilize seal structure to seal gas channel's intercommunication position, thereby guarantee the leakproofness of the first air feed runner and the second air feed runner that form between the gas channel, make radial gas bearing and thrust gas bearing homoenergetic obtain stable air supply and supply, thereby realize higher bearing capacity and better stability, radial gas bearing and thrust gas bearing adopt different air feed runners simultaneously, realize independent air feed structure, the convenience is according to radial gas bearing and thrust gas bearing to going out the demand of gas pressure and flow and independently adjust, thereby realize higher stability and reliability, if gas leakage scheduling problem appears, can arrange the gas channel's gas tightness on the related spare part of air feed runner alone, can accurately find out the leakage position, it is quick simple to handle, and can directly adopt the same spare part to change, be convenient for maintain.
Drawings
Fig. 1 is a cross-sectional view of a motor assembly according to an embodiment of the present invention;
fig. 2 is another cross-sectional view of a motor assembly provided by an embodiment of the present invention;
fig. 3 is a partial schematic view of a second air supply flow passage and a third air supply flow passage provided in an embodiment of the present invention;
in the figure:
1. a radial gas bearing; 2. a thrust gas bearing; 31. a component part; 32. a gas channel; 33. a first gas supply flow passage; 34. a second gas supply channel; 4. a sealing structure; 5. a housing; 6. a bearing seat; 7. a diffuser; 71. and a third air supply channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The motor assembly as shown in fig. 1 to 3 includes: a radial gas bearing 1; a thrust gas bearing 2; the structure is preset, the radial gas bearing 1 and the thrust gas bearing 2 are arranged on the preset structure, the radial gas bearing 1 and the thrust gas bearing 2 are connected to different positions of the preset structure respectively, concretely, the motor assembly further comprises a rotating shaft, the radial gas bearing 1 is sleeved on the rotating shaft, the bearing block is sleeved on the radial gas bearing 1, the thrust gas bearing 2 is sleeved on the rotating shaft, and the thrust gas bearing 2 is positioned on one side of the bearing block. And the required gas pressure and the gas flow of radial gas bearing 1 and thrust gas bearing 2 are all inequality, consequently, need carry out independent air feed for radial gas bearing 1 and thrust gas bearing 2, consequently, it is provided with first air feed runner 33 and second air feed runner 34 in the structure to predetermine, first air feed runner 33 with radial gas bearing 1 intercommunication, second air feed runner 34 with thrust gas bearing 2 intercommunication.
The preset structure comprises at least two parts 31, a gas channel 32 and a part are arranged on the parts 31, the gas channel 32 is sequentially communicated and formed with a first gas supply flow channel 33 and a part, the gas channel 32 is sequentially communicated and formed with a second gas supply flow channel 34, and a sealing structure 4 is surrounded at the communication position of the gas channel 32. Utilize seal structure 4 to seal gas channel 32's intercommunication position, thereby guarantee the leakproofness of first air feed runner 33 and second air feed runner 34 that forms between the gas channel 32, make radial gas bearing 1 and thrust gas bearing 2 all can obtain stable air supply and supply, thereby realize higher bearing capacity and better stability, radial gas bearing 1 and thrust gas bearing 2 adopt different air feed runners simultaneously, realize stand-alone type air feed structure, conveniently independently adjust the demand of giving vent to anger pressure and flow according to radial gas bearing 1 and thrust gas bearing 2, thereby realize higher stability and reliability, if gas leakage scheduling problem appears, can independently investigate the gas tightness of gas channel 32 on the part 31 that the air feed runner relates to, can accurately find out the leakage position, it is quick simple to handle, and can directly adopt the same part 31 to change, be convenient for maintain.
The component 31 has a fitting surface, and in order to ensure reliable structural assembly of the motor assembly, the fitting surface of the component 31 needs to be finished, the communication port of the gas passage 32 is disposed on the fitting surface, in the component 31 in which the two gas passages 32 are communicated with each other, the fitting surface of one component 31 is attached to the fitting surface of the other component 31, and the sealing structure 4 is disposed between the two components 31 and located at the fitting surface. Because the precision of fitting surface is high, and the laminating degree between two spare parts 31 is high for the cooperation precision at gas passage 32 intercommunication position is high, thereby guarantees the cooperation degree between seal structure 4 and two fitting surfaces, and then guarantees seal structure 4's sealed effect, thereby improves the air feed effect to radial gas bearing 1 and thrust gas bearing 2.
Specifically, be provided with on spare part 31 surround in the mounting groove in the intercommunication mouth outside of gas passage 32, seal structure 4 set up in the mounting groove, just seal structure 4's thickness is greater than the thickness of mounting groove. The seal structure 4 is fixed by the mounting groove while defining the position of the communication port of the gas flow passage. And the thickness of the mounting structure is greater than the thickness of the mounting groove so that part of seal structure 4 can be squeezed between the two mating surfaces, thereby increasing the sealing effect of seal structure 4.
Wherein, in two spare parts 31 of laminating each other, be provided with the mounting groove on the fitting surface of one of them spare part 31.
As an embodiment, the motor assembly includes a housing 5 and a bearing seat 6, the radial gas bearing 1 and the thrust gas bearing 2 are both disposed on the housing 5 through the bearing seat 6, and the bearing seat 6 and the housing 5 together form the predetermined structure. That is, the housing 5 is provided with a first radial gas flow passage and a first thrust gas flow passage, the bearing block 6 is provided with a second radial gas flow passage and a second thrust gas flow passage, the first radial gas flow passage and the second radial gas flow passage are communicated to form a first gas supply flow passage 33 for supplying gas to the radial gas bearing 1, and the first thrust gas flow passage and the second thrust gas flow passage are communicated to form a second gas supply flow passage 34 for supplying gas to the thrust gas bearing 2.
Further, the thrust gas bearing 2 functions to restrict the rotation shaft from moving in the axial direction, and the rotation shaft has two directions in the axial direction, so that it is necessary to supply gas to both directions of the thrust gas bearing 2 to restrict the axial movement of the rotation shaft. The motor element is applied to in the compressor, the compressor includes diffuser 7, thrust gas bearing 2 is located diffuser 7 with between the bearing frame 6, diffuser 7 set up in on the casing 5, be provided with third air feed runner 71 on the diffuser 7, the one end of third air feed runner 71 with second air feed runner 34 intercommunication, the other end with thrust gas bearing 2 intercommunication, just third air feed runner 71 with seal structure 4 has been encircleed to thrust gas bearing 2's intercommunication position department. The third gas supply flow passage 71 is used for introducing gas to one side of the thrust gas bearing 2, and the gas flow passage on the bearing seat 6 is used for introducing gas to the other side of the thrust gas bearing 2, so that bidirectional gas supply for the thrust gas bearing 2 is realized, and the reliability of the thrust gas bearing 2 is improved.
In order to further guarantee the gas supply pressure of radial gas bearing 1, avoid gaseous at radial gas bearing 1 and predetermine the intercommunication position department between the structure and reveal, radial gas bearing 1 with predetermine and be provided with seal structure 4 between the structure, just seal structure 4 surround in first gas supply runner 33 with radial gas bearing 1's intercommunication position department. So that gas does not leak between the first gas supply flow passage 33 and the radial gas bearing 1 to affect the reliability of the radial gas bearing 1. Meanwhile, the sealing structure 4 can further increase the damping between the radial gas bearing 1 and the preset structure, so that the reliability of the position of the bearing is further improved, and the reliability of the rotating shaft in operation is improved.
Specifically, the preset structure has a first matching surface, the first gas supply flow channel 33 is formed with a first gas supply outlet on the first matching surface, the radial gas bearing 1 is attached to the first matching surface, and the sealing structure 4 is arranged between the radial gas bearing 1 and the first matching surface.
Optionally, be provided with radial gas supply hole on the radial gas bearing 1, first gas supply export with radial gas supply hole intercommunication, just the axis in radial gas supply hole with the axis collineation of first gas supply export. The air supply effect is prevented from being influenced by pressure resistance caused by deviation between the radial air supply hole and the first air supply outlet.
In order to further ensure the gas supply pressure of the thrust gas bearing 2 and avoid gas leakage at the communication position between the thrust gas bearing 2 and the preset structure, the thrust gas bearing 2 and the preset structure are provided with a sealing structure 4, and the sealing structure 4 surrounds the communication position between the second gas supply flow channel 34 and the thrust gas bearing 2. So that gas does not leak between the second gas supply flow passage 34 and the thrust gas bearing 2 to affect the reliability of the thrust gas bearing 2. Meanwhile, the sealing structure 4 can further increase the damping between the thrust gas bearing 2 and the preset structure, so that the reliability of the position of the bearing is further improved, and the reliability of the rotating shaft in operation is improved.
Specifically, the preset structure has a second matching surface, the second gas supply channel 34 is formed with a second gas supply outlet on the second matching surface, the thrust gas bearing 2 is attached to the second matching surface, and the sealing structure 4 is arranged between the thrust gas bearing 2 and the second matching surface.
Optionally, the thrust gas bearing 2 is provided with a thrust gas supply hole, the thrust gas supply hole is communicated with the second gas supply outlet, and an axis of the thrust gas supply hole is collinear with an axis of the second gas supply outlet. The problem that the air supply effect is influenced due to the fact that pressure resistance is generated due to deviation between the thrust air supply hole and the second air supply outlet is avoided.
The sealing structure 4 comprises an O-ring. The inside of the O-shaped sealing ring forms a sealing area, and the communication position of the gas flow passage or the communication position of the gas supply flow passage and the radial gas bearing 1 or the thrust gas bearing 2 is surrounded in the O-shaped sealing ring, so that the sealing effect of each communication position is improved.
The O-shaped sealing ring is made of rubber.
A compressor comprises the motor assembly.
An air conditioning unit, includes foretell motor element or foretell compressor.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (14)
1. An electric machine assembly characterized by: the method comprises the following steps:
a radial gas bearing (1);
a thrust gas bearing (2);
the thrust gas bearing comprises a preset structure, wherein the radial gas bearing (1) and the thrust gas bearing (2) are arranged on the preset structure, a first gas supply flow channel (33) and a second gas supply flow channel (34) are arranged in the preset structure, the first gas supply flow channel (33) is communicated with the radial gas bearing (1), and the second gas supply flow channel (34) is communicated with the thrust gas bearing (2);
it includes two at least spare parts (31) to predetermine the structure, be provided with gas passage (32) on spare part (31), and part gas passage (32) communicate in proper order and form first air feed runner (33), part gas passage (32) communicate in proper order and form second air feed runner (34), two the intercommunication position department of gas passage (32) is around having seal structure (4).
2. The electric machine assembly of claim 1, wherein: the parts (31) are provided with matching surfaces, the communication ports of the gas passages (32) are arranged on the matching surfaces, in the parts (31) with the two gas passages (32) communicated with each other, the matching surface of one part (31) is attached to the matching surface of the other part (31), and the sealing structure (4) is arranged between the two parts (31) and is positioned at the matching surfaces.
3. The electric machine assembly of claim 1, wherein: the part (31) is provided with a mounting groove surrounding the outer side of the communication opening of the gas channel (32), the sealing structure (4) is arranged in the mounting groove, and the thickness of the sealing structure (4) is larger than that of the mounting groove.
4. The electric machine assembly of claim 1, wherein: the motor assembly comprises a shell (5) and a bearing seat (6), the radial gas bearing (1) and the thrust gas bearing (2) are arranged on the shell (5) through the bearing seat (6), and the bearing seat (6) and the shell (5) jointly form the preset structure.
5. The motor assembly of claim 4, wherein: the motor element is applied to in the compressor, the compressor includes diffuser (7), thrust gas bearing (2) are located diffuser (7) with between bearing frame (6), diffuser (7) set up in on casing (5), be provided with third air feed runner (71) on diffuser (7), the one end of third air feed runner (71) with second air feed runner (34) intercommunication, the other end with thrust gas bearing (2) intercommunication, just third air feed runner (71) with seal structure (4) are located to encircle by the intercommunication position of thrust gas bearing (2).
6. The electric machine assembly of claim 1, wherein: radial gas bearing (1) with be provided with seal structure (4) between the default structure, just seal structure (4) surround in first gas supply runner (33) with the intercommunication position department of radial gas bearing (1).
7. The electric machine assembly of claim 6, wherein: the preset structure is provided with a first matching surface, a first gas supply flow channel (33) is formed with a first gas supply outlet on the first matching surface, the radial gas bearing (1) is attached to the first matching surface, and the sealing structure (4) is arranged between the radial gas bearing (1) and the first matching surface.
8. The motor assembly of claim 7, wherein: be provided with radial gas supply hole on radial gas bearing (1), first gas supply export with radial gas supply hole intercommunication, just the axis in radial gas supply hole with the axis collineation of first gas supply export.
9. The electric machine assembly of claim 1, wherein: thrust gas bearing (2) with be provided with seal structure (4) between the default configuration, just seal structure (4) encircle with second air feed runner (34) with thrust gas bearing (2)'s intercommunication position department.
10. The electric machine assembly of claim 9, wherein: the preset structure is provided with a second matching surface, a second gas supply channel (34) is formed on the second matching surface and is provided with a second gas supply outlet, the thrust gas bearing (2) is attached to the second matching surface, and the sealing structure (4) is arranged between the thrust gas bearing (2) and the second matching surface.
11. The electric motor assembly of claim 10, wherein: the thrust gas bearing (2) is provided with a thrust gas supply hole, the thrust gas supply hole is communicated with the second gas supply outlet, and the axis of the thrust gas supply hole is collinear with the axis of the second gas supply outlet.
12. The electric machine assembly according to any one of claims 1 to 11, wherein: the sealing structure (4) comprises an O-shaped sealing ring.
13. A compressor, characterized by: comprising an electric machine assembly as claimed in any of claims 1 to 12.
14. An air conditioning unit, its characterized in that: comprising the motor assembly of any one of claims 1 to 12 or the compressor of claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222648814.9U CN218387067U (en) | 2022-09-30 | 2022-09-30 | Motor element, compressor and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222648814.9U CN218387067U (en) | 2022-09-30 | 2022-09-30 | Motor element, compressor and air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218387067U true CN218387067U (en) | 2023-01-24 |
Family
ID=84956463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222648814.9U Active CN218387067U (en) | 2022-09-30 | 2022-09-30 | Motor element, compressor and air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218387067U (en) |
-
2022
- 2022-09-30 CN CN202222648814.9U patent/CN218387067U/en active Active
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