CN110429734B - Rotor subassembly, motor, compressor - Google Patents
Rotor subassembly, motor, compressor Download PDFInfo
- Publication number
- CN110429734B CN110429734B CN201910802633.7A CN201910802633A CN110429734B CN 110429734 B CN110429734 B CN 110429734B CN 201910802633 A CN201910802633 A CN 201910802633A CN 110429734 B CN110429734 B CN 110429734B
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- China
- Prior art keywords
- rotor
- plate body
- rotor core
- baffle
- rotor assembly
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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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention provides a rotor assembly, a motor and a compressor. Wherein the rotor subassembly, including baffle, rotor core, the baffle package rubbing board body, a plurality of first spliced poles have been constructed on one side of plate body, first spliced pole along rotor core's axial extension and with plate body integrated into one piece, be constructed a plurality of mounting holes on rotor core's the terminal surface, it is a plurality of first spliced pole and a plurality of the mounting hole one-to-one sets up, just first spliced pole interference fit connect in the mounting hole. According to the rotor assembly, the motor and the compressor, the baffle is connected in the mounting hole of the rotor core in an interference fit mode through the first connecting column, the structure is simple and compact, the assembly process between the baffle and the rotor core is simplified, and the assembly efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of compressor manufacturing, and particularly relates to a rotor assembly, a motor and a compressor.
Background
The rolling rotor type compressor is used as a typical structure in a displacement type refrigeration compressor, has compact structure and good refrigeration effect, and has strong market competitiveness and larger market share on the traditional household air conditioner and the small commercial air conditioner. The motor is used as a power source in the compressor, so that the compressor can reliably work in the whole life cycle, and the reliability of the motor has important influence on the reliability of the compressor. The rotor of the traditional compressor motor is mainly characterized in that the upper baffle and the lower baffle which are arranged oppositely are adopted to block and position magnetic steel in the rotor core, and the upper baffle and the lower baffle are fixedly connected to the two axial ends of the rotor core through screws or rivets, so that the number of fasteners adopting the assembling mode is large, the assembling process is complex, and the number of working procedures is large.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a rotor assembly, a motor and a compressor, wherein the baffle is connected in the mounting hole of the rotor core through the first connecting column in an interference fit manner, the structure is simple and compact, the assembly process between the baffle and the rotor core is simplified, and the assembly efficiency is improved.
In order to solve the above problems, the present invention provides a rotor assembly, including a baffle plate and a rotor core, where the baffle plate includes a plate body, one side of the plate body is configured with a plurality of first connecting columns, the first connecting columns extend along an axial direction of the rotor core and are integrally formed with the plate body, the end surface of the rotor core is configured with a plurality of mounting holes, the plurality of first connecting columns and the plurality of mounting holes are arranged in a one-to-one correspondence manner, and the first connecting columns are connected in the mounting holes in an interference fit manner.
Preferably, a first through hole is formed in the plate body, a second through hole is formed in the rotor core, and the first through hole and the second through hole are arranged correspondingly; and/or a rotating shaft passing hole is formed in the geometric center of the plate body.
Preferably, the first connecting columns are arranged on the periphery of the rotating shaft passing hole, and the distance between every two adjacent first connecting columns is different.
Preferably, the baffle further comprises an oil blocking portion, and a first gap is formed between the oil blocking portion and the plate body; and/or the mounting hole is a blind hole, the hole depth of the blind hole is a, the length of the first connecting column is b, and a is larger than or equal to 1.1 b.
Preferably, a second connecting column is arranged between the oil retaining part and the plate body.
Preferably, the oil blocking part comprises an oil blocking plate body, and the oil blocking plate body and the plate body are arranged in parallel.
Preferably, the oil baffle body is configured at an edge thereof with a circumferential sidewall extending along an axial direction of the rotor core and away from a side of the plate body.
Preferably, the end of the peripheral side wall forms a flange, and the flange extends along the radial direction of the rotor core and away from one side of the axis of the rotor core.
Preferably, the oil blocking part, the plate body and the first connecting column are integrally formed; or, the plate body and the first connecting column are integrally formed.
The invention also provides a motor comprising the rotor assembly.
Preferably, the motor further comprises a stator assembly, the stator assembly is provided with a rotor mounting hole, the rotor assembly is arranged in the rotor mounting hole, the inner circle diameter of the rotor mounting hole is D, when the rotor assembly comprises a flanging, the outer circle diameter of the flanging is D, and D is larger than D.
Preferably, stator module includes stator core, first skeleton is located on stator core's the axial terminal surface, when rotor subassembly includes the turn-ups, the turn-ups orientation the rotor core the side with the rotor core towards the distance between the terminal surface of turn-ups one side is H, first skeleton with the rotor core towards the maximum distance of the terminal surface of turn-ups one side is H, H > H.
The invention also provides a compressor which comprises the motor.
According to the rotor assembly, the motor and the compressor, the baffle is connected with the mounting hole of the rotor core in an interference fit manner through the first connecting column, and the baffle is not required to be connected with the rotor core in a plurality of rivets or bolts in the prior art, so that the baffle can be reliably connected to the end face of the rotor core to axially block and position magnetic steel in the magnetic steel groove of the rotor core, the assembly process between the baffle and the rotor core is greatly simplified, and the assembly efficiency is improved.
Drawings
Fig. 1 is a perspective view illustrating a rotor assembly according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a structural version of the baffle of FIG. 1;
FIG. 4 is another configuration of the baffle of FIG. 1;
FIG. 5 is a schematic view of the baffle of FIG. 4 at another angle;
fig. 6 is a schematic structural view of a compressor according to still another embodiment of the present invention.
The reference numerals are represented as:
1. a baffle plate; 11. a plate body; 12. a first connecting column; 13. a first through-flow aperture; 14. the rotating shaft passes through the hole; 15. a second connecting column; 16. an oil baffle plate body; 161. a peripheral side wall; 162. flanging; 2. a rotor core; 21. mounting holes; 22. a second vent hole; 31. a stator core; 32. a first skeleton.
Detailed Description
Referring to fig. 1 to 6 in combination, according to an embodiment of the present invention, a rotor assembly is provided, which includes a baffle plate 1 and a rotor core 2, where the baffle plate 1 includes a plate body 11, a plurality of first connection columns 12 are configured on one side of the plate body 11, the first connection columns 12 extend along an axial direction of the rotor core 2 and are integrally formed with the plate body 11, a plurality of mounting holes 21 are configured on an end surface of the rotor core 2, the plurality of first connection columns 12 are arranged in one-to-one correspondence with the plurality of mounting holes 21, and the first connection columns 12 are connected in the mounting holes 21 in an interference fit manner. In the technical scheme, the baffle 1 is connected with the mounting hole 21 of the rotor core 2 in an interference fit manner through the first connecting column 12 provided on the baffle 1, and the baffle 1 is not required to be connected with the rotor core 2 in a manner of adopting a plurality of rivets or bolts as in the prior art, so that the baffle 1 can be reliably connected with the end surface of the rotor core 2 to axially block and position the magnetic steel in the magnetic steel slot of the rotor core 2, the assembly process between the baffle 1 and the rotor core 2 is greatly simplified, and the assembly efficiency is improved. Preferably, the first connecting columns 12 and the plate body 11 are integrally formed, so that the first connecting columns 12 and the plate body 11 do not need to be assembled and connected, which can further simplify the assembling process of the baffle plate 1 and the rotor core 2.
In order to effectively reduce the temperature rise of the rotor core 2, preferably, a first through hole 13 is configured on the plate body 11, a second through hole 22 is configured on the rotor core 2, and the first through hole 13 and the second through hole 22 are correspondingly arranged, so that the coolant airflow can effectively cool the rotor core 2 through the second through hole 22 and the first through hole 13, and the magnetic steel in the rotor core 2 is prevented from being demagnetized at a high temperature due to an excessively high temperature; and/or, a rotating shaft passing hole 14 is formed in the geometric center of the plate body 11, so that a rotating shaft of the rotor assembly can pass through the rotating shaft passing hole 14, which is beneficial to increasing the matching length of the rotor core 2 and the rotating shaft, and further improving the connection reliability.
The shape of the baffle 1 is not particularly limited, and the invention is only a circle, but in practical application, it can also be designed as an inscribed polygon of a circle or a circumscribed polygon of a circle, and the rotating shaft through hole is preferably concentric with the geometric center of the baffle 1.
The first connecting columns 12 may be disposed around the rotating shaft passing hole 14 at regular intervals, and further, the first connecting columns 12 are located at the periphery of the rotating shaft passing hole 14, and the distance between two adjacent first connecting columns 12 is different, that is, the distance between the first connecting columns 12 may be different, for example, different in the radial direction of the plate body 11, or different in the circumferential direction of the plate body 11, and the first connecting columns 12 with different distances may be designed to take into consideration the requirement of the mass eccentricity of the rotating shaft, so that there is no need to separately dispose a corresponding balance weight on the rotor assembly, and the baffle is particularly suitable for use when the rotor assembly is assembled into a compressor.
The mounting holes 21 may be through holes, that is, through the two axial ends of the rotor core 2, or blind holes, when the mounting holes 21 are blind holes, the depth of the blind holes is a, the length of the first connecting column 12 is b, and a is greater than or equal to 1.1b, so that errors in the processing of the mounting holes 21 and the first connecting column 12 can be prevented, the reliability of interference fit between the mounting holes and the first connecting column is ensured, and further, b is greater than or equal to 1 mm.
Preferably, the baffle 1 further comprises an oil blocking portion, a first gap is formed between the oil blocking portion and the plate body 11, specifically, a second connecting column 15 is formed between the oil blocking portion and the plate body 11, that is, the length of the second connecting column 15 forms the first gap. In this technical scheme, the baffle 1 not only blocks and positions the magnetic steel in the axial direction, but also has an oil blocking effect, and specifically, as shown in fig. 1 and 6, the baffle 1 is preferably installed on one side of the rotor assembly near the compression exhaust port, and the oil blocking portion is used to realize the mixed lubricating oil in the refrigerant exhaust, so that most of the lubricating oil can flow back to the oil pool below in time. It is understood that the oil blocking portion, the second connecting column 15 and the plate body 11 are also integrally formed.
Specifically, as a concrete implementation of fender oil portion, preferably, fender oil portion includes fender oil plate body 16, fender oil plate body 16 with plate body 11 parallel arrangement, this kind of mode can facilitate the processing preparation of baffle 1, of course, fender oil plate body 16 can have certain tapering, and is specific, the awl point that keeps off oil plate body 16 deviates from plate body 11 one side to can form the umbelliform of refrigerant air current and shelter from.
When the oil baffle plate 16 is a plate-shaped structure, it is preferable that the edge of the oil baffle plate 16 is configured with a peripheral sidewall 161, and the peripheral sidewall 161 extends along the axial direction of the rotor core 2 and away from the plate 11, and then the oil baffle plate 16 and the peripheral sidewall 161 form a concave basin-shaped structure. Further, the end of the peripheral side wall 161 forms a flange 162, the flange 162 extends along the radial direction of the rotor core 2 and away from the axial center side of the rotor core 2, this structure, on one hand, can accommodate the size interference between the rotor assembly and the stator assembly in the axial installation to a greater extent, on the other hand, can shield the refrigerant airflow again and return the lubricating oil mixed therein by the action of the peripheral sidewall 161 and the turned-over edge 162, and more importantly, when the oil gas and the gas refrigerant flow upward from the lower part of the rotor core 2, the air flow hits the lower plane of the baffle plate body 16 and can split the high-speed air flow along the basin-shaped structure at both sides (i.e. the peripheral side wall 161), when the air current rises to the turn-ups 162 of the top side, form the backward flow to reduce gaseous pulsation power, be favorable to improving the product reliability.
Further, the magnetic steel in the rotor core 2 is preferably a permanent magnet, such as a ferrite magnet, a rare earth magnet, and the permanent magnet may be in a shape of "line", "V", or "W", and may be arranged in a single layer or in multiple layers, which is not limited by the present invention.
According to an embodiment of the present invention, a motor is further provided, where the motor may be a distributed winding motor or a concentrated winding motor, and includes the above-mentioned rotor assembly and stator assembly, where the stator assembly has a rotor mounting hole, the rotor assembly is disposed in the rotor mounting hole, the diameter of the inner circle of the rotor mounting hole is D, when the rotor assembly includes a flange 162, the diameter of the outer circle of the flange 162 is D, D is greater than D, and preferably, D-D is greater than or equal to 0.8 mm.
Further, stator module includes stator core 31, first skeleton 32 is located on the axial terminal surface of stator core 31, when the rotor subassembly includes turn-ups 162, turn-ups 162 towards the side of rotor core 2 with the rotor core 2 towards the distance between the terminal surface of turn-ups 162 one side is H, first skeleton 32 with the maximum distance of rotor core 2 towards the terminal surface of turn-ups 162 one side is H, H > H to guarantee turn-ups 162 forms effective the sheltering from to the coolant air current that rotor core 2 one side flows.
According to an embodiment of the present invention, there is also provided a compressor including the motor described above.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (12)
1. The rotor assembly is characterized by comprising a baffle (1) and a rotor core (2), wherein the baffle (1) comprises a plate body (11), a plurality of first connecting columns (12) are constructed on one side of the plate body (11), the first connecting columns (12) extend along the axial direction of the rotor core (2) and are integrally formed with the plate body (11), a plurality of mounting holes (21) are constructed on the end face of the rotor core (2), the first connecting columns (12) and the mounting holes (21) are arranged in a one-to-one correspondence manner, and the first connecting columns (12) are connected into the mounting holes (21) in an interference fit manner; a rotating shaft passing hole (14) is formed in the geometric center of the plate body (11), the first connecting columns (12) are located on the periphery of the rotating shaft passing hole (14), and the distance between every two adjacent first connecting columns (12) is different.
2. The rotor assembly as claimed in claim 1, characterized in that a first through-opening (13) is formed in the plate body (11), a second through-opening (22) is formed in the rotor core (2), and the first through-opening (13) is arranged in correspondence with the second through-opening (22).
3. The rotor assembly according to claim 1, wherein the baffle (1) further comprises an oil baffle having a first gap with the plate body (11); and/or the mounting hole (21) is a blind hole, the hole depth of the blind hole is a, the length of the first connecting column (12) is b, and a is larger than or equal to 1.1 b.
4. The rotor assembly according to claim 3, wherein a second connection column (15) is provided between the oil baffle and the plate body (11).
5. The rotor assembly of claim 3, wherein the oil baffle comprises an oil baffle plate (16), the oil baffle plate (16) being arranged in parallel with the plate (11).
6. Rotor assembly according to claim 5, wherein the edge of the oil baffle body (16) is configured with a peripheral side wall (161), the peripheral side wall (161) extending in the axial direction of the rotor core (2) and away from the side of the plate body (11).
7. The rotor assembly according to claim 6, wherein the end of the peripheral side wall (161) forms a flange (162), and the flange (162) extends along the radial direction of the rotor core (2) and away from the axial center side of the rotor core (2).
8. The rotor assembly according to claim 3, wherein the oil baffle, the plate body (11) and the first connecting post (12) are integrally formed; or, the plate body (11) and the first connecting column (12) are integrally formed.
9. An electrical machine comprising a rotor assembly, wherein the rotor assembly is as claimed in any one of claims 1 to 8.
10. The electric machine of claim 9, further comprising a stator assembly having a rotor mounting hole, the rotor assembly being disposed within the rotor mounting hole, the rotor mounting hole having an inner circle diameter D, when the baffle (1) of the rotor assembly includes a flange (162), the flange (162) having an outer circle diameter D, D > D.
11. The motor according to claim 10, wherein the stator assembly comprises a stator core (31) and a first framework (32), the first framework (32) is arranged on an axial end face of the stator core (31), when the rotor assembly comprises a flanging (162), a distance between a side face of the flanging (162) facing the rotor core (2) and an end face of the rotor core (2) facing one side of the flanging (162) is H, and a maximum distance between the first framework (32) and the end face of the rotor core (2) facing one side of the flanging (162) is H, wherein H is greater than H.
12. A compressor comprising an electric motor, characterized in that the electric motor is according to any one of claims 9 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802633.7A CN110429734B (en) | 2019-08-28 | 2019-08-28 | Rotor subassembly, motor, compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802633.7A CN110429734B (en) | 2019-08-28 | 2019-08-28 | Rotor subassembly, motor, compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110429734A CN110429734A (en) | 2019-11-08 |
| CN110429734B true CN110429734B (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910802633.7A Active CN110429734B (en) | 2019-08-28 | 2019-08-28 | Rotor subassembly, motor, compressor |
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| Country | Link |
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| CN (1) | CN110429734B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113904478B (en) * | 2021-09-28 | 2022-10-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor element, compressor and air conditioner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270891B (en) * | 2010-06-03 | 2013-05-22 | 珠海格力电器股份有限公司 | Self-starting permanent magnet synchronous motor rotor and compressor using same |
| CN203387314U (en) * | 2013-07-30 | 2014-01-08 | 中山大洋电机制造有限公司 | Motor rotor structure |
| CN206257047U (en) * | 2016-10-12 | 2017-06-16 | 珠海格力节能环保制冷技术研究中心有限公司 | The inside oil baffle structure and the compressor with the oil baffle structure of compressor |
| CN206259766U (en) * | 2016-10-13 | 2017-06-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor structure, motor and compressor |
| CN206274033U (en) * | 2016-12-20 | 2017-06-23 | 瑞智(青岛)精密机电有限公司 | A kind of Rotary Compressor with new oil baffle structure |
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- 2019-08-28 CN CN201910802633.7A patent/CN110429734B/en active Active
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| Publication number | Publication date |
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| CN110429734A (en) | 2019-11-08 |
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Effective date of registration: 20220706 Address after: 230088 Mingchuan Road 209, Baiyan Science Park, Hefei High-tech Zone, Anhui Province Patentee after: HEFEI LINGDA COMPRESSOR CO.,LTD. Patentee after: Zhuhai GREE energy conservation and environmental protection refrigeration technology research center Co., Ltd. Address before: 519000 science and technology building, 789 Jinji Road, Qianshan, Zhuhai, Guangdong Patentee before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |