CN203770132U - Miniature sealed triangular rotor compressor - Google Patents
Miniature sealed triangular rotor compressor Download PDFInfo
- Publication number
- CN203770132U CN203770132U CN201420082352.1U CN201420082352U CN203770132U CN 203770132 U CN203770132 U CN 203770132U CN 201420082352 U CN201420082352 U CN 201420082352U CN 203770132 U CN203770132 U CN 203770132U
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- China
- Prior art keywords
- eccentric shaft
- wankel
- rotor
- type compressor
- compressor
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- 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.)
- Expired - Lifetime
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- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 34
- 238000005057 refrigeration Methods 0.000 claims abstract description 19
- 239000003507 refrigerant Substances 0.000 claims abstract description 8
- 230000003993 interaction Effects 0.000 claims abstract description 4
- 239000000314 lubricant Substances 0.000 claims description 21
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000005486 microgravity Effects 0.000 abstract description 6
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Abstract
The utility model discloses a miniature sealed triangular rotor compressor, and belongs to the field of compression refrigeration. The compressor comprises a compression unit for compressing a refrigerant, a motor, a sealed container and an eccentric shaft, wherein the compression unit and the motor are arranged in the container to be in a sealed type; a triangular rotor and a compression cavity are required to do eccentric motion, so that the eccentric shaft in the sealed container penetrates through the triangular rotor and the motor and simultaneously transmits driving force of the motor to the compression unit; the motor comprises a stator and a rotor; the stator is fixed outside the eccentric shaft, and the rotor is arranged outside the stator, and rotates relative to the eccentric shaft by virtue of electromagnetic interaction with the stator; the compressor is designed to be wholly-sealed; a motor shell and a case are welded into the integrated sealed container; the motor and the wall surface of the sealed container are insulated. The compressor can normally run under a microgravity condition; in addition, due to the adoption of the wholly-sealed design, the leakage of lubricating oil and the refrigerant is avoided; due to the compact structure and the light weight, the compressor can be applied to a miniature refrigeration system.
Description
Technical field
The utility model openly relates to a kind of miniature closed Wankel-type compressor, belongs to compression refrigeration field.More particularly, the disclosure relates to a kind of so closed Wankel-type compressor, in this closed Wankel-type compressor, compression unit adopts three-apexed rotor, under main application and microgravity operating conditions because do not have under the condition of gravity lubricant oil can not be back to oil sump so compressor is not provided with oil sump, in order to prevent that the mixture leakage of lubricant oil and refrigeration agent is encapsulated in compressor and motor in a seal container.
Background technique
Micro-compressor, the core component as mini-refrigerator system, is widely used in all trades and professions.Hermetic compressor comprises that its design optimization just has vital meaning for the compression unit of compressed refrigerant and for the driving force of compressed refrigerant is provided.
The major part of practical application is at present all positive displacement compressor, the compressor of the type in the situation that of Chang Chongli application technology comparative maturity but in microgravity situation owing to not having gravity that lubricant oil is back in oil sump, thereby cause compressor normally to move.
Wankel-type compressor applies to car air conditioner, but its volume and weight are generally not suitable for more greatly using in mini-refrigerator system.
The primary goal of mini-refrigerator system is that quality is light, and that Wankel-type compressor has is simple in structure, efficiency is high, the life-span is long, it is little to vibrate, noise is low, the body light and advantage such as be applicable to running up in a small amount, so be applicable to very much the exploitation of micro-compressor.
Wankel-type compressor does not have lubricating oil bath, and it is by being dissolved in lubricant oil in refrigeration agent with air motion, under the pressure difference effect of each portion and enter each parts of people and be lubricated.Can make like this compressor in the scope of 360 °, install arbitrarily on axial direction.This is that the compressor of other kind is beyond one's reach.
Compressor can not with the problem of compressor package at a cavity, thereby the problem of the refrigeration agent bringing and oil leak.
Model utility content
The utility model is devoted to overcome aforesaid drawbacks of the prior art, and technical assignment of the present utility model is to provide a kind of Wankel-type compressor of micro full closed formula, is intended to can normally move under microgravity condition.
Miniature closed Wankel-type compressor, is characterized in that: it mainly comprises; Compression unit, chief component is compression chamber and three-apexed rotor, for compressed refrigerant and lubricant oil; Micromachine, for the driving force of compressed refrigerant and lubricant oil is provided, it uses 24V DC electrical source to drive; Seal container, motor housing and casing weld for sealing Wankel-type compressor and micromachine and make it integrated, prevent the leakage of refrigeration agent and lubricant oil; Eccentric shaft, for the driving force of micromachine is delivered to compression unit, integrates the live axle of micromachine and the power intake of sealing Wankel-type compressor;
Needle bearing, wins to coordinate by mistake with the eccentric rotary axle of Wankel-type compressor and is fixed, and eccentric rotary axle passes from needle bearing, also rotatable supporting rotating shaft; Phasing gears, comprises external gear and internal gear;
Mainly described micromachine, consist of the power section of compressor, micromachine is comprised of stator and rotor, and stator is fixed in the shell of micromachine, and rotor passes stator, and leaves gap between rotor and stator; Micromachine is arranged on the front end of eccentric shaft, and motor housing seals and forms sealed cylinder block together with welding box body, and motor binding post is drawn outside sealed cylinder block; Described compression unit forms motion parts, and it comprises compression chamber and three-apexed rotor, and three-apexed rotor is arranged on formation compression chamber in the cylinder body that forms compression chamber; Eccentric shaft passes three-apexed rotor, the rotary compression refrigeration agent of eccentric shaft and the mixture of lubricant oil, and work in the San Ge working room that three-apexed rotor forms simultaneously; By 6 stud bolts, cylinder body, bonnet, the rear enclosing cover of protecgulum, formation compression chamber are coordinated to assembling; Internal gear is contained in the inside of three-apexed rotor, and external gear is fixed on bonnet; Interior external gear coordinates, and engagement is than for 3:2, makes three-apexed rotor generation rotation, and eccentric shaft drives three-apexed rotor to revolve round the sun simultaneously.Revolution and rotation superimposed, overlap the motion molded line of three-apexed rotor and the structure line of cylinder interior.The air inlet of Wankel-type compressor and the position of air outlet are according to system discharge capacity 3.5cc, suction port is arranged in to the top of miniature Wankel-type compressor, air outlet is arranged in rear outer the covering of miniature Wankel-type compressor, Wankel-type compressor is not established Aspirating valves, is provided with two suction ports in the cylinder body of compression chamber; The stator of micromachine is fixed on the inner side of seal container by flat key, three wiring terminals are introduced to the outside of housing by insulation processing, the main body of rotor is fixed on the outside of eccentric shaft, rotor by it with the electromagnetic interaction of stator and rotate together with eccentric rotary axle.
The running shaft of Wankel-type compressor is eccentric shaft, and this eccentric shaft can be divided into four sections along axis according to the effect of each section; Second segment and the 4th section are the supporting sections of eccentric shaft, adopt respectively single-row centripetal bearing and needle bearing to support.It is the power pack of system that the part that eccentric shaft first paragraph is connected with micromachine adopts cantilever, and the 3rd section is that eccentric design adopts needle bearing to be connected with three-apexed rotor.Of the present utility model another is characterised in that: it is not provided with oil sump and deaerator.
The utility model can obtain following beneficial effect: this micro-compressor can normally move under microgravity condition, and fully closed design simultaneously can not leaked lubricant oil and refrigeration agent.This miniature Wankel-type compressor is because compact structure lighter weight can apply to mini-refrigerator system.
Accompanying drawing explanation
Fig. 1 shows the sectional view plan view according to the closed Wankel-type compressor of the utility model exemplary embodiment;
Fig. 2 shows according to the right elevation of the closed Wankel-type compressor of the utility model exemplary embodiment;
Fig. 3 is the protecgulum figure of the utility model Wankel-type compressor;
Fig. 4 is the cylinder body figure of Wankel-type compressor compression chamber;
Fig. 5 is the bonnet figure of Wankel-type compressor cylinder;
Fig. 6 is the rear enclosing cover figure of Wankel-type compressor;
Fig. 7 is Wankel-type compressor eccentric shaft figure;
Fig. 8 three-apexed rotor structural drawing;
Fig. 9 is the active chamber cross-sectional view of Wankel-type compressor;
In figure: the 1st, motor housing; The 2nd, air input joint; The 3rd, set screw nut; The 4th, pad; The 5th, spacer; The 6th, stud bolt; The 7th, scraping blade; The 8th, scrape flat spring; The 9th, three-apexed rotor; The 10th, resilient key; The 11st, internal gear; The 12nd, back balance iron; The 13rd, set screw nut; The 14th, compressor case; 15 set screw nuts; The 16th, rear enclosing cover; The 17th, bonnet; The 18th, external gear bearing support; The 19th, cylinder body; The 20th, eccentric shaft; The 21st, protecgulum; The 22nd, forward horizontal stand iron; The 23rd, pipe joint; The 24th, one-way valve; The 25th, screw; The 26th, nut; The 27th, motor stator; The 28th, motor rotor; The 29th, single-row centripetal bearing; The 30th, screw; 31,32 needle bearings; 33 hole Steel Cable Baffle Rings; The 34th, compound gasket.
Embodiment
The advantages such as minisize refrigeration compressor assembly is little with its volume in recent years, refrigerating capacity is strong, working medium is capable of circulation are widely used.And the core of mini-refrigerator system is with regard to minisize refrigeration compressor, the miniature Wankel-type compressor in the utility model case study on implementation is owing to not establishing oil sump, and the operating mode of operation is can be adapted under microgravity condition under refrigeration agent and the lubricant oil condition of dissolving each other.And in order to prevent the leakage of lubricant oil and refrigeration agent, in the utility model, manufactured and designed seal container compressor and motor have been enclosed among this seal container.
Compressor is, by 6 stud bolts, protecgulum 21, cylinder body 19, bonnet 17, rear enclosing cover 16 are coordinated to assembling.Wherein the three-apexed rotor 9 of compressor is arranged on the interior formation compression chamber of cylinder body 19.Internal gear 11 is contained in the inside of three-apexed rotor 9, and external gear bearing support 18 is fixed on external gear 18 on bonnet 17 and with cogged part, stretches out the bottom of the eccentric part of the just close eccentric shaft 20 of rear enclosing cover.Interior external gear coordinates, and engagement is than being 3:2, is that rotation occurs three-apexed rotor 9, and eccentric shaft 20 drives three-apexed rotor 9 to revolve round the sun simultaneously.Revolution and rotation superimposed, overlap the motion molded line of three-apexed rotor and the structure line of cylinder interior.Motor is arranged on protecgulum, and machine shaft and compressor rotation shaft are made of one and form combined eccentricity axle.The Wankel-type compressor that rotarily drives by machine shaft 20 is rotated, and then the refrigeration agent in compression compression chamber and the mixture of lubricant oil.Finally motor housing 1 and special compressor case 14 are welded together and sealed.Motor binding post is drawn outside sealed cylinder block.
Hereinafter, the embodiment of the Wankel-type compressor shown in reference to the accompanying drawings describes in detail according to closed Wankel-type compressor of the present utility model.
Fig. 1 is the plan view sectional view according to the utility model embodiment's closed Wankel-type compressor, and the left view sectional view of this hermetic compressor of Fig. 2.
Fig. 1 comprises according to the hermetic compressor of exemplary embodiment of the present utility model: closed container, and this container is to be welded by motor housing 1 and compressor case 14; The mixture of refrigeration agent and lubricant oil enters in cylinder by suction port 2, and three-apexed rotor 9 slides lubricant oil and refrigeration agent are compressed along its internal surface, and three-apexed rotor 9 is on one side around self center rotation, Yi Bian revolve round the sun around cylinder axis again.
In Fig. 1,1 is that motor housing is the motor part of fully closed compressor in the utility model, motor comprises again stator 27 and rotor 28, during compressor operating, due to the axle of motor in the utility model and the eccentric shaft of compressor processing all-in-one-piece, so eccentric shaft 20 rotates by identical track with motor shaft.
Wankel-type compressor in the utility model shown in Fig. 1 has adopted two needle bearing B7, B8 to also have a single-row centripetal bearing B5.Due to structural restriction, needle bearing B7, B8 directly roll on eccentric shaft 20 surfaces.
The air input joint 2 of the Wankel-type compressor shown in Fig. 2, compound gasket 34 and pipe joint 23, compound gasket 34 can play the effect of sealing, prevents refrigrant leakage.
Wankel-type compressor active chamber in the utility model is comprised of three-apexed rotor 9, cylinder body 19 and end cap.Fig. 3, Fig. 4 and Fig. 5 are respectively protecgulum 21, cylinder body 19, bonnet 17 and the rear enclosing cover 16 of closed Wankel-type compressor.Between end cap, by 6 stud bolts 6, be fixed, three-apexed rotor 9 is assembled in cylinder body 19
Three-apexed rotor schematic diagram as shown in Figure 7, three-apexed rotor 9 is fixed on eccentric shaft by bearing, when rotating, eccentric shaft 20 drive three-apexed rotor 9 to realize revolution, by resilient key 10, internal gear 11 is fixing on three-apexed rotor, external gear bearing support 18 meshes with internal gear 11, when therefore revolving round the sun, due to the engagement of interior external gear, realize the rotation of three-apexed rotor, the motion molded line of three-apexed rotor 9 is the synthetic results of rotation and revolution motion.
Eccentric shaft is designed with the oilhole that diameter is 3.5mm on eccentric shaft 20 as shown in Figure 6, and lubricant oil is entered by needle bearing 32, then by center hole, lubricates eccentric shaft 20 and cooling three-apexed rotor 9.
The type of cooling of compressor is air-cooled, cylinder 19 and end cap, and end cap comprises that protecgulum 21, bonnet 17, rear enclosing cover 16 use air are cooling, three-apexed rotor is cooling with lubricant oil.
Motor comprises motor stator 27 and rotor 28, stator 27 is connected on motor housing 1 by flat key, be enclosed in the inside of seal container, and wiring terminal is arranged on to the outside of motor housing 1 by nut 26 and screw 25, and rotor 28 is by rotating with the electromagnetic interaction of stator 27.
What rotor 28 was fixing is connected on eccentric shaft 20 so that eccentric shaft 20 rotations.Rotor 28 is arranged on the upside of closed container.Eccentric shaft 20 is through rotor 27 centers that are fixed and connect.Figure 9 shows that the active chamber sectional view of miniature closed Wankel-type compressor, eccentric shaft 20 drives three-apexed rotors 9 to rotate, thereby compression enters refrigeration agent in active chamber and the mixture of lubricant oil.
Wankel-type compressor of the present utility model is not established outlet valve, controls the intake and exhaust of compressor, and according to the compression ratio of different working condition requirements, with computer approach, determined the position of inlet and outlet mouths by the profile line of three-apexed rotor.When eccentric shaft 20 rotates 270 °, three-apexed rotor 9 completes air-breathing and exhaust process.
Claims (5)
1. miniature closed Wankel-type compressor, is characterized in that: it mainly comprises;
Compression unit, chief component is compression chamber and three-apexed rotor, for compressed refrigerant and lubricant oil;
Micromachine, for the driving force of compressed refrigerant and lubricant oil is provided, it uses 24V DC electrical source to drive;
Seal container, motor housing and casing weld for sealing Wankel-type compressor and micromachine and make it integrated, prevent the leakage of refrigeration agent and lubricant oil;
Eccentric shaft, for the driving force of micromachine is delivered to compression unit, integrates the live axle of micromachine and the power intake of sealing Wankel-type compressor;
Needle bearing, wins to coordinate by mistake with the eccentric shaft of Wankel-type compressor and is fixed, and eccentric shaft passes from needle bearing, also rotatable support eccentric shaft;
Phasing gears, comprises external gear and internal gear;
Mainly described micromachine, consist of the power section of compressor, micromachine is comprised of stator and rotor, and stator is fixed in the shell of micromachine, and rotor passes stator, and leaves gap between rotor and stator; Micromachine is arranged on the front end of eccentric shaft, and motor housing seals and forms sealed cylinder block together with welding box body, and motor binding post is drawn outside sealed cylinder block; Described compression unit forms motion parts, and it comprises compression chamber and three-apexed rotor, and three-apexed rotor is arranged on formation compression chamber in the cylinder body that forms compression chamber; Eccentric shaft passes three-apexed rotor, the rotary compression refrigeration agent of eccentric shaft and the mixture of lubricant oil, and work in the San Ge working room that three-apexed rotor forms simultaneously; By 6 stud bolts, cylinder body, bonnet, the rear enclosing cover of protecgulum, formation compression chamber are coordinated to assembling; Internal gear is contained in the inside of three-apexed rotor, external gear is fixed on bonnet, interior external gear coordinates, and engagement is than being 3:2, make three-apexed rotor generation rotation, simultaneously eccentric shaft drives three-apexed rotor to revolve round the sun, and revolution and rotation superimposed overlaps the motion molded line of three-apexed rotor and the structure line of cylinder interior.
2. according to the miniature closed Wankel-type compressor of claim 1, it is characterized in that: the air inlet of Wankel-type compressor and the position of air outlet are according to system discharge capacity 3.5cc, suction port is arranged in to the top of miniature Wankel-type compressor, air outlet is arranged in rear outer the covering of miniature Wankel-type compressor, Wankel-type compressor is not established Aspirating valves, is provided with two suction ports in the cylinder body of compression chamber.
3. miniature closed Wankel-type compressor according to claim 1, it is characterized in that: wherein, the stator of micromachine is fixed on the inner side of seal container by flat key, three wiring terminals are introduced to the outside of housing by insulation processing, the main body of rotor is fixed on the outside of eccentric shaft, rotor by it with the electromagnetic interaction of stator and rotate together with eccentric rotary axle.
4. miniature closed Wankel-type compressor according to claim 1, is characterized in that: the running shaft of Wankel-type compressor is eccentric shaft, and this eccentric shaft can be divided into four sections along axis according to the effect of each section; Second segment and the 4th section are the supporting sections of eccentric shaft, adopt respectively single-row centripetal bearing and needle bearing to support; It is the power pack of system that the part that eccentric shaft first paragraph is connected with micromachine adopts cantilever, and the 3rd section is that eccentric design adopts needle bearing to be connected with three-apexed rotor.
5. miniature closed Wankel-type compressor according to claim 1, is characterized in that: it is not provided with oil sump and deaerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082352.1U CN203770132U (en) | 2014-02-26 | 2014-02-26 | Miniature sealed triangular rotor compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082352.1U CN203770132U (en) | 2014-02-26 | 2014-02-26 | Miniature sealed triangular rotor compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770132U true CN203770132U (en) | 2014-08-13 |
Family
ID=51287329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420082352.1U Expired - Lifetime CN203770132U (en) | 2014-02-26 | 2014-02-26 | Miniature sealed triangular rotor compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835947A (en) * | 2014-02-26 | 2014-06-04 | 北京工业大学 | Closed triangle rotor micro-compressor |
-
2014
- 2014-02-26 CN CN201420082352.1U patent/CN203770132U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835947A (en) * | 2014-02-26 | 2014-06-04 | 北京工业大学 | Closed triangle rotor micro-compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |