CN201152259Y - Compressor - Google Patents
Compressor Download PDFInfo
- Publication number
- CN201152259Y CN201152259Y CNU2007201790455U CN200720179045U CN201152259Y CN 201152259 Y CN201152259 Y CN 201152259Y CN U2007201790455 U CNU2007201790455 U CN U2007201790455U CN 200720179045 U CN200720179045 U CN 200720179045U CN 201152259 Y CN201152259 Y CN 201152259Y
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- China
- Prior art keywords
- compressor
- oil
- oil baffle
- blade
- retaining
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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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Abstract
The utility model discloses a compressor which comprises a shell, a compressing structure in the shell and a motor. The motor comprises a stator, a rotor and an oil baffle plate fixed on the rotor. The compressor is characterized in that sheet-shaped oil baffle blades are arranged on the oil baffle plate. The oil baffle plate of the compressor is additionally provided with the oil baffle blades on the basis of the present universal structure, and before entering an exhaust pipe, refrigerant oil mixed with cooling medium is thrown outwards and struck on the stator and the inner wall of the compressor under the action of the centrifugal force of rotating blades and then flows back the lower part of the compressor. Meanwhile, a rotating field formed by high speed rotating blades can throw oil drops outwards, and the oil drops flow back to a lubricating part of the compressor along the stator and the inner wall of the shell. The compressor effectively reduces the oil discharging quantity and improves the heat transfer efficiency of air conditioner system so as to improve the energy efficiency and reliability of an air conditioner.
Description
Technical field
The utility model relates to compressor field.
Background technique
As shown in Figure 1, existing compressor generally is made up of compressor case 1, the pump housing 2, liquid-storage container 3, stator 4 and rotor 5, the part compressor also is equipped with oil baffle 6 on the rotor 5 of motor, oil baffle 6 will be stopped by the refrigerator oil that crankshaft oil hole 7 forces up, prevent that machine oil from discharging compressor from outlet pipe 8, enter air-conditioning system.Have the oil baffle structural representation now as shown in Figure 2, this oil baffle 6 is a plane just, is installed in above the rotor 5, can only stop the refrigerator oil by crankshaft oil hole, does not have centrifugation for the vaporific oil droplet that is mixed in the refrigerant.On the oil baffle 6 among Fig. 2 near the center portion bigger be positioning hole 61, be used to make the position of rotor and bent axle to coincide, what four of peripheries were less is rivet hole 62, is used for fixing oil baffle plate.
For improving the oily effect of retaining, announced a kind of closed type rotary compressor among the open flat 4-101100 of communique of Japan Patent, it is provided with the oily tunnel of retaining on oil baffle, when oil baffle rotates, oil droplet outside the oily tunnel of retaining is beaten at the tunnel outer surface, and is laterally dirty in rotation then, meanwhile, the oil droplet of side direction outlet pipe diffluence contacts with the tunnel inwall under rotation in the tunnel, is subjected to action of centrifugal force diffluence laterally (throwing out).In this structure, the lower ending opening of outlet pipe extends to the oil baffle upper surface to the position range between the upper end, the oily tunnel of described retaining, and the refrigerant that discharge and oil droplet must and keep off between the upper end, oily tunnel and passing through from oil baffle.Therefore, this technical pattern complexity, the outlet pipe lower ending opening must leave in the middle of upper end, tunnel and oil baffle, length is more a lot of than existing exhaust pipe range, cost is higher, and refrigerant just will discharge must be through the flow field of the disorder of a high speed rotating, refrigerant has the pressure loss, and is influential to the power of compressor.
Summary of the invention
For addressing the above problem, the purpose of this utility model provides a kind of compressor, under the prerequisite of the performance that does not influence compressor, solve the excessive problem of present rotor-type compressor oil discharge-amount with simple structure and lower cost, improve the Energy Efficiency Ratio of air-conditioning system, simultaneously can also keep the refrigerating machine oil mass of compressor inside, improve the reliability of compressor.
The purpose of this utility model is achieved in that a kind of compressor, comprise compressing mechanism and motor in shell, the shell, motor comprises stator, rotor and is fixed on epitrochanterian oil baffle, it is characterized in that: described oil baffle is provided with the retaining oil blade of sheet.
The oily blade of described retaining is by radiation around the mind-set in the oil baffle.
The shape of the oily blade of described retaining is flat board or arc shape.
The quantity of the oily blade of described retaining is one or more pieces.
Opposite with the rotor rotation direction, the oily blade of described retaining departs from the radial direction of oil baffle from outside to inside gradually.
The external diameter of the oily blade of described retaining is no more than the external diameter of rotor.
Described outlet pipe lower ending opening is no more than four times of the oily blade height of retaining apart from the distance of the oily blade of retaining upper end.
Oil baffle of the present utility model is simple in structure, and is easily manufactured, only increases the retaining oil blade of sheet on existing general structure, on the one hand, the oil droplet in the blade scope can be when blade rotate attached to blade on, and outside under action of centrifugal force, being thrown toward; On the other hand, blade can form the flow field of a rotation when high speed rotating, because the density of refrigerant is less than the density of oil droplet, refrigerant can be stayed inside, flow field, discharges via outlet pipe again, and oil droplet is thrown toward the outside, on stator and compressor inwall, flows back to the compressor bottom again.The utility model can effectively reduce oily discharge-amount, through comparative trial, reduce oily discharge-amount than the oil baffle that uses existing General Construction and reach more than 20%, improved the heat transfer efficiency of air-conditioning system, and increased the refrigerating machine oil mass of staying in the compressor, thereby the efficiency and the reliability of air-conditioning have been improved.
Description of drawings
Fig. 1 is the sectional drawing of existing compressor;
Fig. 2 is the oil baffle schematic representation in the existing compressor;
Fig. 3 is the sectional drawing of the compressor in the utility model;
Fig. 4, Fig. 5, Fig. 6 are respectively the oil baffle structural representations among the utility model embodiment 1-3.
Embodiment
At the exploitation of the high-efficient compressor of coolant quantity, the lift-launch of high-efficiency air-condition system greatly at present, the utility model provides a kind of compressor, as shown in Figure 3, comprise compressing mechanism and motor in shell 1, the shell 1, motor comprises stator 4, rotor 5 and is fixed on oil baffle 10 on the rotor 5, wherein, on described oil baffle 10, be provided with the retaining oil blade 9 of sheet.The oily blade 9 of described retaining is by radiation around the mind-set in the oil baffle 10, and its shape is flat board or arc shape, and quantity is one or more pieces.Each seamed edge that keeps off oily blade 9 seamlessly transits by chamfering.
The rotor 5 of high speed rotating drives blade 9 rotations, a rotational flow field is formed at the top at compressor, when refrigerant and this flow field of vaporific oil droplet process, owing to have density difference, under the effect of rotational flow field, around the oil droplet that density is big is thrown toward, on stator 4 and compressor inwall, and in dirty time compressor bottom of action of gravity, the refrigerant that density is little moves to the centre, and move upward, discharge by outlet pipe 8 at last, so just reached the purpose of separating.
The oil droplet in the flow field and the force analysis of refrigerant:
Adopt in the compressor of existing baffle plate (on-bladed), separating of refrigerant and refrigerator oil mainly relies on gravitational settling.
And in the compressor shown in the open flat 4-101100 of communique of Japan Patent, because the compression captain that outlet pipe length adopts existing baffle plate (on-bladed), the distance of gravitational settling is shorter than existing compressor, and the gravitational settling effect will be lower than the compressor that adopts existing baffle plate (on-bladed).Its refrigerant separates main dependence with refrigerator oil: refrigerant is discharged compressor by outlet pipe must be by the tunnel of a high speed rotating or the next door in tunnel, oil droplet is attached on the blade, around under action of centrifugal force, being thrown to then, flowing down or sink to falling along tube wall again in action of gravity.
The utility model mainly relies on the blade of high speed rotating to form the flow field of a rotation, in this flow field, because the density of refrigerant and refrigerator oil is different, can separate, when leaving rotational flow field, oil droplet also can obtain the speed that a bigger footpath makes progress, make oil droplet beat, flow down or sink to falling along tube wall again in action of gravity on the tube wall or around flying to.
Because the density of refrigerant and refrigerator oil is different, the acceleration of the two also is different, and the difference of acceleration can cause speed to produce difference, and refrigerant and oil droplet are separated.In the utility model, because rotor 5 drives blade 9 high speed rotating of oil baffle 10, the flow velocity in flow field is very high, the formed power in flow field will be much larger than the formed power of pressure reduction at this some place, the difference of the acceleration that is produced also will be much larger than having only the acceleration under the gravity environment poor, and separating effect can be better than existing vaneless oil baffle.In rotational flow field, oil droplet relatively has an acceleration outside rotational flow field with refrigerant, and outside promptly oil droplet was thrown to, refrigerant flowed away with the flow field.And this acceleration is greater than is having only the acceleration under the gravity environment poor, and the rotating speed in flow field is high more, and the acceleration difference is big more, the easy more outside that is thrown to of oil droplet, and the separating effect of oil droplet and refrigerant is good more.After leaving rotational flow field, because the density of refrigerant is littler than the oil droplet, the acceleration ratio oil droplet at the sensing center of refrigerant big causes the speed of the speed of refrigerant directed outside less than oil droplet, when refrigerant flowed to the central position at last, oil droplet was stayed all around or is beaten on the compressor inwall.Oil droplet in blade 9 scopes because the high speed rotating of blade 9 can make oil droplet beat on blade 9, is thrown out of under action of centrifugal force then, and separating effect in this case is also than the good separating effect that has only under the gravity environment.
In sum, adopt in the compressor of the present utility model, because the acceleration difference of refrigerant and oil droplet is poor greater than the acceleration in the existing on-bladed oil baffle compressor, and because in rotational flow field, the flow process of refrigerant and oil droplet is than existing length, so separating effect is better than existing oil baffle.In fact, adopt in the compressor of existing oil baffle,, also can form the flow field of a rotation, but this flow field does not have flow field intensity and scope in the utility model big owing to the high-speed rotation of rotor.And the rotational speed in flow field is high more, and scope is big more, and the effect of separation is good more.Briefly, by on oil baffle, appending sheet blade 9, the oil droplet that more meeting is originally flowed out together along with refrigerant, be subjected to the effect of rotational flow field, around under action of centrifugal force, being thrown toward, on stator spiral and compressor inwall, flow back to the compressor bottom again, thereby reduced oily discharge-amount effectively.
According to experiment and theory analysis, outlet pipe 8 lower ending openings are near more apart from the distance H of blade 9, the height h of blade 9 is high more, diameter d is big more, the effect of separating is good more, but take all factors into consideration fluid resistance losses, windage loss loss and cost factor, the outside diameter d of blade 9 equals rotor 5 outer diameter D is advisable, and the height h of blade 9 is about 5mm; Outlet pipe 8 lower ending openings should be above four times of blade 9 height h apart from the distance H of blade 9 upper-end surfaces, and the Blade Design under this condition can play separating effect preferably, can not cause bigger influence to the performance of compressor again.
As shown in Figure 4, retaining oil blade 9 in the present embodiment on the oil baffle 10, in order not influence stator spiral and outlet pipe, the outside diameter d of blade 9 equals the outer diameter D of rotor 5, the about 5mm of height h, the distance H between outlet pipe lower end mouth and the blade is no more than four times of blade height.Blade 9 is the blade of two arc surfaceds, and it is highly consistent (or have height difference also can), does not cross between the blade, is arranged by radiation around the mind-set in the oil baffle 10.And opposite with rotor 5 sense of rotation (among the figure shown in the arrow), the oily blade 9 of described retaining departs from the oil baffle radial direction from outside to inside gradually.Blade 9 can be to be welded on the oil baffle 10, perhaps also can be and oil baffle 10 integrated punching moulding.The material of blade 9 can be copper or iron.
Embodiment 2
As shown in Figure 5, the retaining oil blade 9 in the present embodiment on the oil baffle 10 is the blade of a slice arc surfaced, and blade 9 centers overlap with oil baffle 10 centers, and the outside diameter d of blade 9 equals the outer diameter D of rotor 5.
Embodiment 3
As shown in Figure 6, the retaining oil blade 9 in the present embodiment on the oil baffle 10 is three flat blades, and the outside diameter d of blade 9 equals the outer diameter D of rotor 5, does not cross between the blade, is arranged by radiation around the mind-set in the oil baffle 10.And opposite with rotor 5 sense of rotation (among the figure shown in the arrow), the oily blade 9 of described retaining departs from the oil baffle radial direction from outside to inside gradually.
Claims (10)
1. a compressor comprises compressing mechanism and motor in shell, the shell, and motor comprises stator, rotor and is fixed on epitrochanterian oil baffle, it is characterized in that: described oil baffle is provided with the retaining oil blade of sheet.
2. compressor according to claim 1 is characterized in that: the oily blade of described retaining is by radiation around the mind-set in the oil baffle.
3. compressor according to claim 1 and 2 is characterized in that: the shape of the oily blade of described retaining is flat board or arc shape.
4. compressor according to claim 1 and 2 is characterized in that: the quantity of the oily blade of described retaining is one or more pieces.
5. compressor according to claim 4 is characterized in that: the retaining of described multi-disc oil blades height is consistent, or has height difference.
6. compressor according to claim 1 and 2 is characterized in that: opposite with the rotor rotation direction, the oily blade of described retaining departs from the oil baffle radial direction from outside to inside gradually.
7. compressor according to claim 1 and 2 is characterized in that: the external diameter of the oily blade of described retaining is no more than the external diameter of rotor.
8. compressor according to claim 1 and 2 is characterized in that: described outlet pipe lower ending opening is no more than four times of the oily blade height of retaining apart from the distance of the oily blade of retaining upper end.
9. compressor according to claim 1 and 2 is characterized in that: each seamed edge of the oily blade of described retaining seamlessly transits by chamfering.
10. compressor according to claim 1 and 2 is characterized in that: the oily blade pass of described retaining is crossed and is fixedly welded on the oil baffle upper surface, or with the moulding of oil baffle integrated punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201790455U CN201152259Y (en) | 2007-12-29 | 2007-12-29 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201790455U CN201152259Y (en) | 2007-12-29 | 2007-12-29 | Compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152259Y true CN201152259Y (en) | 2008-11-19 |
Family
ID=40127937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201790455U Expired - Lifetime CN201152259Y (en) | 2007-12-29 | 2007-12-29 | Compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152259Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330689A (en) * | 2010-07-12 | 2012-01-25 | 珠海格力电器股份有限公司 | Rotary compressor and oil baffle plate thereof |
| CN102493942A (en) * | 2008-12-30 | 2012-06-13 | 上海日立电器有限公司 | Oil-gas separation baffle for air condition compressor |
| CN101769257B (en) * | 2008-12-30 | 2012-06-27 | 上海日立电器有限公司 | Gas-oil separation baffle for air condition compressor |
| CN103306983A (en) * | 2013-05-16 | 2013-09-18 | 珠海格力电器股份有限公司 | Compressor drainage board and rotary compressor |
| CN103573634A (en) * | 2012-07-31 | 2014-02-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil baffle plate and compressor applying oil baffle plate |
| CN106246547A (en) * | 2016-09-22 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor |
-
2007
- 2007-12-29 CN CNU2007201790455U patent/CN201152259Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493942A (en) * | 2008-12-30 | 2012-06-13 | 上海日立电器有限公司 | Oil-gas separation baffle for air condition compressor |
| CN101769257B (en) * | 2008-12-30 | 2012-06-27 | 上海日立电器有限公司 | Gas-oil separation baffle for air condition compressor |
| CN102493942B (en) * | 2008-12-30 | 2014-04-30 | 上海日立电器有限公司 | Oil-gas separation baffle for air condition compressor |
| CN102330689A (en) * | 2010-07-12 | 2012-01-25 | 珠海格力电器股份有限公司 | Rotary compressor and oil baffle plate thereof |
| CN103573634A (en) * | 2012-07-31 | 2014-02-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil baffle plate and compressor applying oil baffle plate |
| CN103573634B (en) * | 2012-07-31 | 2017-02-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil baffle plate and compressor applying oil baffle plate |
| CN103306983A (en) * | 2013-05-16 | 2013-09-18 | 珠海格力电器股份有限公司 | Compressor drainage board and rotary compressor |
| CN103306983B (en) * | 2013-05-16 | 2016-03-23 | 珠海格力电器股份有限公司 | Compressor dumping-guiding plate and rotary compressor |
| CN106246547A (en) * | 2016-09-22 | 2016-12-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary 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 |
Granted publication date: 20081119 |
|
| CX01 | Expiry of patent term |