CN110707857A - Motor element, oil-free vortex air compressor and air conditioner - Google Patents

Motor element, oil-free vortex air compressor and air conditioner Download PDF

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Publication number
CN110707857A
CN110707857A CN201911016523.4A CN201911016523A CN110707857A CN 110707857 A CN110707857 A CN 110707857A CN 201911016523 A CN201911016523 A CN 201911016523A CN 110707857 A CN110707857 A CN 110707857A
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CN
China
Prior art keywords
bearing
end cover
motor
assembly
motor shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911016523.4A
Other languages
Chinese (zh)
Inventor
魏会军
律刚
方琪
单彩侠
刘双来
赵豪川
赵玉晨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Original Assignee
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd filed Critical Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority to CN201911016523.4A priority Critical patent/CN110707857A/en
Publication of CN110707857A publication Critical patent/CN110707857A/en
Pending legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • 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
    • H02K7/003—Couplings; Details of shafts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

The invention provides a motor assembly, an oil-free vortex air compressor and an air conditioner, wherein the motor assembly comprises: the shell, the first end cover and the second end cover; the first end cap is integrally formed at one axial end of the housing, and the second end cap is mounted at the other axial end of the housing. The motor component shell and the end cover are integrally designed, and the center of the shaft system is directly determined by the end cover integrally formed on the shell, so that the concentricity of the motor shaft system can be improved. Adopt the design of integral type casing, reduced end cover part and fastening part quantity thereof, support more steadily, eliminated the potential safety hazard that relies on the fastener to produce simultaneously.

Description

Motor element, oil-free vortex air compressor and air conditioner
Technical Field
The invention belongs to the technical field of air compression, and particularly relates to a motor assembly, an oil-free vortex air compressor and an air conditioner.
Background
A motor directly drives a movable scroll plate through a driving bearing. The motor shell is of a cylindrical structure, the front end cover and the rear end cover are respectively arranged at the front end and the rear end of the cylinder body, the front end cover and the rear end cover are detachably fixed on the cylinder body, a front bearing is arranged in the front end cover, a rear bearing is arranged in the rear end cover, and the motor is located between the two bearings. The motor assembly adopts a split structure design of a front end cover, a barrel and a rear end cover, so that accurate centering of a front bearing and a rear bearing is difficult to realize, and the concentricity of the motor is poor.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the concentricity of the motor component of the oil-free vortex air compressor is poor, so that the motor component, the oil-free vortex air compressor and the air conditioner are provided.
In order to solve the above problems, the present invention provides a motor assembly including:
the shell, the first end cover and the second end cover;
the first end cap is integrally formed at one axial end of the housing, and the second end cap is mounted at the other axial end of the housing.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, the motor assembly further comprises a motor shaft, the motor shaft is installed in the shell through the first end cover and the second end cover, and the motor shaft comprises a power output end penetrating out of the first end cover.
Preferably, the first end cover is provided with a first bearing, the second end cover is provided with a second bearing, and the motor shaft is arranged on the first bearing and the second bearing.
Preferably, the first bearing is in interference fit with the motor shaft, and the second bearing is in clearance fit with the motor shaft.
Preferably, the first end cover is provided with a first bearing and a third bearing, the first bearing and the third bearing are arranged at intervals along the axis of the shell, and the motor shaft is arranged on the first bearing and the third bearing.
Preferably, the first bearing is mounted in an end face of the first end cap facing the outside of the housing and the third bearing is mounted in an end face of the first end cap facing the inside of the housing.
Preferably, the second end cover is provided with a second bearing, and the motor shaft is simultaneously arranged on the first bearing, the third bearing and the second bearing.
Preferably, the second end cap is secured to the housing by a first fastener.
Preferably, the motor assembly includes a stator assembly mounted on the second end cap by a second fastener.
An oil-free scroll air compressor comprising:
the above-described motor assembly;
the vortex assembly is in power connection with the power output end, and the motor assembly drives the vortex assembly to rotate.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, the oil-free vortex air compressor further comprises a mounting base, and the shell and the vortex assembly are mounted on the mounting base.
Preferably, an eccentric driving part is mounted on the power output end, the vortex assembly comprises a movable vortex disc assembly, the movable vortex disc assembly is connected with the eccentric driving part, and the motor assembly drives the movable vortex disc assembly to rotate through the eccentric driving part.
An air conditioner adopts foretell motor element, or above-mentioned arbitrary oil-free vortex air compressor machine.
The motor assembly, the oil-free vortex air compressor and the air conditioner provided by the invention at least have the following beneficial effects:
the motor component shell and the end cover are integrally designed, and the first end cover integrally formed on the shell directly determines the center of a shaft system, so that the concentricity of the motor shaft system can be improved. Adopt the design of integral type casing, reduced end cover part and fastening part quantity thereof, support more steadily, eliminated the potential safety hazard that relies on the fastener to produce simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of a motor assembly according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a motor assembly according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a motor assembly according to a third embodiment of the present invention;
FIG. 4 is a schematic view of a stator assembly installation;
fig. 5 is a schematic structural view of an oil-free vortex air compressor.
The reference numerals are represented as:
1. a housing; 2. a first end cap; 3. a second end cap; 4. a motor shaft; 5. a power output end; 6. a first bearing; 7. a second bearing; 8. a third bearing; 9. a stator assembly; 10. a first fastener; 11. a second fastener; 12. a motor assembly; 13. a vortex assembly; 14. installing a base; 15. an eccentric drive; 16. a movable scroll plate assembly; 17. positioning a pin shaft; 18. a seal member; 19. a step surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a first embodiment of the present invention provides an electric machine assembly 12, including: a housing 1, a first end cap 2, a second end cap 3; the first end cap 2 is integrally formed at one axial end of the housing 1, and the second end cap 3 is mounted at the other axial end of the housing 1.
The motor assembly 12 of the embodiment adopts an integrated shell design, and the center of a shaft system is directly determined by an end cover integrally formed on the shell 1, so that the concentricity of the motor shaft system can be improved. Adopt the design of integral type casing, reduced end cover part and fastening part quantity thereof, support more steadily, eliminated the potential safety hazard that relies on the fastener to produce simultaneously.
In this embodiment one, motor element still includes motor shaft 4, and motor shaft 4 installs in casing 1 through first end cover 2, second end cover 3, and motor shaft 4 stretches out from integrated into one piece's end cover including wearing out to the power take off 5 in the 2 outsides of first end cover 4 to integrated into one piece's end cover is main support point, can further improve the concentricity of motor shaft system.
In the first embodiment, the first end cap 2 is provided with a first bearing 6, the second end cap 3 is provided with a second bearing 7, and the motor shaft 4 is installed on the first bearing 6 and the second bearing 7. The open setting of 1 one end of motor casing of this embodiment, the setting is sealed to one end in addition, directly sets up the bearing at the barrel blind end for support motor crankshaft, the concentricity of this bearing is higher, thereby motor shaft 4's concentricity is higher. Further, first bearing 6 is connected with 4 interference of motor shaft, and second bearing 7 and 4 clearance connections of motor shaft, the steady support motor shaft 4 of assurance first bearing 6 that can set up like this, can guarantee simultaneously that the assembly of second end cover 3 is smooth and easy.
Referring to fig. 2, in the motor assembly provided in the second embodiment, the first end cover 2 is provided with the first bearing 6 and the third bearing 8, the first bearing 6 and the third bearing 8 are arranged at intervals along the axis of the housing 1, and the motor shaft 4 is installed on the first bearing 6 and the third bearing 8. First bearing 6 is installed in the terminal surface in first end cover 2 outside towards casing 1, and third bearing 8 is installed in first end cover 2 inside towards the terminal surface of casing 1, and first bearing 6, third bearing 8 all are with motor shaft 4 interference fit, and first bearing 6, third bearing 8 are the higher interference fit of precision with first end cover 2 simultaneously to positioning accuracy between motor shaft 4 and the casing 1 is higher, and motor element's concentricity is higher. In this embodiment, set up two bearings simultaneously on the first end cover 2, two bearing interval set up to motor shaft 4 and provide the outrigger, avoid errors such as the processing of end cover, assembly to influence motor element's concentricity, second end cover 3 need not support motor shaft 4, only need play the effect of sealed motor, does not need too high processing or positioning accuracy.
Referring to fig. 3, in the motor assembly provided in the third embodiment, the second end cap 3 is provided with the second bearing 7, and the motor shaft 4 is simultaneously installed on the first bearing 6, the third bearing 8 and the second bearing 7, so that the first bearing 6, the third bearing 8 and the motor shaft 4 are in interference fit. The motor shaft 4 of this embodiment is installed through three bearing, and it is more steady to operate, is favorable to improving motor element's performance.
Referring to fig. 1-4, in three embodiments of the present invention, the second end cap 3 is fixed on the housing 1 by the first fastening member 10, the first fastening member 10 is a screw member, and meanwhile, a positioning pin 17 may be further disposed between the housing 1 and the second end cap 3, which can improve the mounting accuracy of the second end cap 3 and ensure the concentricity of the second bearing 7. At this time, in order to secure the sealing performance of the motor, a sealing member 18 may be installed in the joint surface of the second end cap 3 and the housing 1. Furthermore, the inner side of the second end cap 3 may be machined with a step surface 19 for axial positioning and centering of the stator assembly 9.
Referring to fig. 1-4, in three embodiments of the present invention, the motor assembly 12 includes a stator assembly 9, the stator assembly 9 is mounted on the second end cap 3 by a second fastener 11, and the second fastener 11 is preferably a long bolt, and is fastened axially through the stator assembly 9. Because stator module 9 is fixed on second end cover 3, the bearing of second end cover 3 increases, for guaranteeing more steady support shafting, preferably adopts the technical scheme of embodiment three, sets up second bearing 7 on second end cover 3 in step. The stator assembly 9 may also be mounted within the housing 1 in a direct interference fit.
As shown in fig. 5, the present embodiment provides an oil-free scroll air compressor, including: the above-described motor assembly 12; vortex subassembly 13, vortex subassembly 13 power connection in power take off 5, motor element 12 drive vortex subassembly 13 operation.
The oil-free vortex air compressor of this embodiment, motor element 12 concentricity is higher to improve the concentricity of the sound whirlpool dish in vortex subassembly 13, improved the performance of air compressor machine.
In this embodiment, oil-free vortex air compressor machine still includes installation base 14, and casing 1, vortex subassembly 13 are installed on installation base 14. An eccentric driving part 15 is installed on the power output end 5, the scroll assembly 13 comprises an orbiting scroll assembly 16, the orbiting scroll assembly 16 is connected with the eccentric driving part 15, and the motor assembly 12 drives the orbiting scroll assembly 16 to rotate through the eccentric driving part 15.
An air conditioner adopts foretell motor element 12, or above-mentioned arbitrary oil-free vortex air compressor machine.
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 (13)

1. An electric machine assembly, comprising:
the device comprises a shell (1), a first end cover (2) and a second end cover (3);
the first end cover (2) is integrally formed at one axial end of the shell (1), and the second end cover (3) is mounted at the other axial end of the shell (1).
2. The motor assembly according to claim 1, characterized in that the motor assembly further comprises a motor shaft (4), the motor shaft (4) is mounted in the housing (1) through the first end cover (2) and the second end cover (3), and the motor shaft (4) comprises a power output end (5) penetrating to the outside of the first end cover (2).
3. The motor assembly according to claim 2, wherein a first bearing (6) is arranged on the first end cover (2), a second bearing (7) is arranged on the second end cover (3), and the motor shaft (4) is mounted on the first bearing (6) and the second bearing (7).
4. A motor assembly according to claim 3, characterized in that the first bearing (6) is an interference fit with the motor shaft (4) and the second bearing (7) is a clearance fit with the motor shaft (4).
5. The motor assembly according to claim 2, wherein the first end cover (2) is provided with a first bearing (6) and a third bearing (8), the first bearing (6) and the third bearing (8) are arranged at intervals along the axis of the shell (1), and the motor shaft (4) is mounted on the first bearing (6) and the third bearing (8).
6. An electric machine assembly according to claim 5, characterized in that the first bearing (6) is mounted in the end face of the first end cover (2) facing the outside of the housing (1), and the third bearing (8) is mounted in the end face of the first end cover (2) facing the inside of the housing (1).
7. The motor assembly according to claim 5, characterized in that a second bearing (7) is arranged on the second end cover (3), and the motor shaft (4) is simultaneously mounted on the first bearing (6), the third bearing (8) and the second bearing (7).
8. An electric machine assembly according to any of claims 1-7, characterized in that the second end cap (3) is fixed to the housing (1) by means of first fastening members (10).
9. The electric machine assembly according to claim 8, characterized in that the electric machine assembly (12) comprises a stator assembly (9), the stator assembly (9) being mounted on the second end cap (3) by means of second fasteners (11).
10. The utility model provides an oilless vortex air compressor which characterized in that includes:
the electric machine assembly (12) of any of claims 2-9;
vortex subassembly (13), vortex subassembly (13) power connect in power take off end (5), motor element (12) drive vortex subassembly (13) operation.
11. An oil-free scroll air compressor as claimed in claim 10, further comprising a mounting base (14), wherein the housing (1) and the scroll assembly (13) are mounted on the mounting base (14).
12. An oil-free scroll air compressor as claimed in claim 11, wherein an eccentric driving member (15) is mounted on the power output end (5), the scroll assembly (13) comprises an orbiting scroll assembly (16), the orbiting scroll assembly (16) is connected with the eccentric driving member (15), and the motor assembly (12) drives the orbiting scroll assembly (16) to rotate through the eccentric driving member (15).
13. An air conditioner characterized in that the motor assembly (12) of any one of claims 1 to 9 or the oil-free scroll air compressor of any one of claims 10 to 12 is used.
CN201911016523.4A 2019-10-24 2019-10-24 Motor element, oil-free vortex air compressor and air conditioner Pending CN110707857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911016523.4A CN110707857A (en) 2019-10-24 2019-10-24 Motor element, oil-free vortex air compressor and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911016523.4A CN110707857A (en) 2019-10-24 2019-10-24 Motor element, oil-free vortex air compressor and air conditioner

Publications (1)

Publication Number Publication Date
CN110707857A true CN110707857A (en) 2020-01-17

Family

ID=69200335

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911016523.4A Pending CN110707857A (en) 2019-10-24 2019-10-24 Motor element, oil-free vortex air compressor and air conditioner

Country Status (1)

Country Link
CN (1) CN110707857A (en)

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