CN106762655B - Scroll compressor support and scroll compressor - Google Patents
Scroll compressor support and scroll compressor Download PDFInfo
- Publication number
- CN106762655B CN106762655B CN201710037363.6A CN201710037363A CN106762655B CN 106762655 B CN106762655 B CN 106762655B CN 201710037363 A CN201710037363 A CN 201710037363A CN 106762655 B CN106762655 B CN 106762655B
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- China
- Prior art keywords
- sliding slot
- bracket
- recess channels
- along
- machine support
- 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.)
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Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000009514 concussion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- F04C29/02—Lubrication; Lubricant separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a scroll compressor support and a scroll compressor, wherein the scroll compressor support comprises at least one sliding groove (11) matched with a cross sliding ring of the scroll compressor, the inside of the sliding groove is also provided with a ventilation hole (12) capable of ventilating along the axial direction of the support in a penetrating manner, the sliding groove comprises a first side surface (13) positioned at the upstream and a second side surface (14) positioned at the downstream along the rotation direction of a rotating shaft of a motor of the compressor, and a groove channel (15) is also arranged on the support (1) at a position adjacent to the second side surface and communicated with the sliding groove. By the aid of the oil-gas lubrication device, oil gas can enter the groove channel through the second side surface (the chute stress surface) to lubricate the chute stress surface, abnormal eccentric wear of the support chute and the stress surface of the cross slip ring is prevented and reduced, reliability of a support and even a compressor is improved, service life of the support and even the compressor is prolonged, and energy loss caused by oil-gas pumping in a chute cavity can be reduced.
Description
Technical field
The invention belongs to compressor air-conditioning technical fields, and in particular to a kind of scroll compression machine support and screw compressor.
Background technique
Current compressor significant proportion for electric vehicle uses scroll compressor, and for the vortex of cross slip-ring structure
Compressor, currently used mount approach generally are trough width relative symmetry arrangement, and sliding slot two sides lubrication is consistent, but presses
In contracting machine actual motion, since crankshaft rotates, bracket and cross slip-ring face upward below direction of rotation are relative to rotation side
Upward direction face stress is bigger, and bracket chute and cross slip-ring stress surface eccentric wear is caused even to damage.
And cross slip-ring structure compresses machine is used, bracket chute and cross slip-ring cooperatively form a chamber, with cross slip-ring
With the relative motion of bracket, the intracorporal oil gas of this chamber is inhaled into the chamber for a moment, is discharged the chamber from inlet hole again for a moment, so that oily
Gas is in the motion process for not stopping concussion of the iterative cycles of suction, compression, and compressor power consumption height etc. is caused to adversely affect.
Since there are bracket chutes and the stress surface eccentric wear exception of cross slip-ring, abrasion for screw compressor in the prior art
It is serious or even the technical problems such as be easily damaged, therefore researching and designing of the present invention goes out a kind of scroll compression machine support and scroll compression
Machine.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming screw compressor in the prior art, there are bracket chutes
With the defect of the stress surface eccentric wear exception of cross slip-ring, to provide a kind of scroll compression machine support and screw compressor.
The present invention provides a kind of scroll compression machine support comprising matches for the cross slip-ring with screw compressor
At least one sliding slot is additionally provided with the venthole that can be ventilated along bracket axial direction perforation inside the sliding slot, along
The direction of rotation of compressor electric motor shaft, the sliding slot include the second side positioned at the first side of upstream and positioned at downstream,
And the position adjacent with the second side is also provided with recess channels with being connected with the sliding slot on the bracket.
Preferably, the recess channels along the axial direction of the bracket open up predetermined depth and than the sliding slots
Depth as shallow.
Preferably, the recess channels are with the radial direction from the radial outer end of the bracket towards the center of the bracket
It opens up.
Preferably, the recess channels are prolonged with the sliding slot along the radial direction along the length that the radial direction extends
The equal length stretched.
Preferably, along the radial direction of the bracket, the width of the recess channels is consistent.
Preferably, along the radial direction of the bracket, the width of the recess channels is not consistent.
Preferably, from the center of the bracket in radially outward direction, the width of the recess channels is gradually increased.
Preferably, the sliding slot be even number, each pair of sliding slot each along the bracket center at be symmetrical arranged, and
It is adjacent in the second side of each sliding slot and is provided with the recess channels.
Preferably, the sliding slot is 2, and the recess channels are also 2.
Preferably, is also provided with the sliding slot in the adjacent position of the first side of the sliding slot with being connected
Two recess channels.
The present invention also provides a kind of screw compressors comprising scroll compression machine support above-mentioned.
A kind of scroll compression machine support and screw compressor provided by the invention have the following beneficial effects:
1. scroll compression machine support of the invention and screw compressor, by the rotation side along compressor electric motor shaft
The adjacent position of the second side of sliding slot downstream offers recess channels with being connected with the sliding slot, enables to oil
Gas can be entered in the recess channels by second side (sliding slot stress surface), to be formed to the sliding slot stress surface good
Lubricating action is effectively prevented and reduces the situation of the stress surface eccentric wear exception of bracket chute and cross slip-ring, improves bracket
The even reliability and service life of compressor；
2. scroll compression machine support of the invention and screw compressor, also by the rotation along compressor electric motor shaft
The adjacent position of the second side of the sliding slot in direction downstream side offers recess channels with being connected with the sliding slot, due to making
Oil gas can be entered in the recess channels by second side (sliding slot stress surface), additionally it is possible to be effectively prevented oil gas from ventilation
Hole backtracking discharge bracket, significantly reduce in sliding slot cavity due to oil gas ceaselessly take out swaging at concussion caused by
Energy loss.
Detailed description of the invention
Fig. 1 is the whole schematic cross-sectional view of the screw compressor of the prior art；
Fig. 2 is the right view structure chart of Fig. 1 mesoscale eddies compressor bracket；
Fig. 3 a is the partial structurtes enlarged drawing when part I passes through venthole air-breathing in Fig. 1；
Fig. 3 b is the partial structurtes enlarged drawing when part I is vented by venthole in Fig. 1；
Fig. 4 is the main view of screw compressor stent embodiment 1 of the invention；
Fig. 5 is the structural schematic diagram in the direction A of Fig. 4；
Fig. 6 is the enlarged structure schematic diagram of the part B of Fig. 5；
Fig. 7 is the main view of screw compressor stent embodiment 1 of the invention；
Fig. 8 is the structural schematic diagram in the direction C of Fig. 7；
Fig. 9 is the enlarged structure schematic diagram of the part D of Fig. 8；
Appended drawing reference indicates in figure are as follows:
1-bracket, 11-sliding slots, 12-ventholes, 13-first sides, 14-second sides, 15-recess channels,
16-centre bores, 2-cross slip-rings, 3-wear plates, 4-movable orbiting scrolls, 5-fixed scrolls.
Specific embodiment
Embodiment 1
As Figure 4-Figure 6, the present invention provides a kind of scroll compression machine support, for be arranged inside scroll compression casing with
Support orbiter comprising at least one sliding slot 11 that the cross slip-ring 2 with screw compressor matches, the sliding slot
It limits cross slip-ring 2 to move reciprocatingly wherein, be additionally provided with inside the sliding slot 11 along 1 axial direction of bracket perforation
Can ventilation venthole 12, along the direction of rotation (such as the direction of rotation Fig. 4 be clockwise) of compressor electric motor shaft, described
Sliding slot includes the first side 13 positioned at upstream and second side 14 positioned at downstream, and with described the on the bracket 1
The adjacent position of two side faces is also provided with recess channels 15 with the sliding slot with being connected.
By the adjacent position of the second side of the sliding slot in the direction of rotation downstream side along compressor electric motor shaft with
The sliding slot offers recess channels with being connected, and enables to oil gas that can enter by second side (sliding slot stress surface)
In the recess channels, to form good lubricating action to the sliding slot stress surface, it is effectively prevented and reduces bracket chute
With the situation of the stress surface eccentric wear exception of cross slip-ring, i.e., solution bracket chute and cross slip-ring actual motion in lateral forces not
The eccentric wear with caused by is abnormal, improves the bracket even reliability and service life of compressor；
By above-mentioned means, lead to due to enabling oil gas to enter the groove by second side (sliding slot stress surface)
In road, additionally it is possible to be effectively prevented oil gas from venthole backtracking discharge bracket, significantly reduce in sliding slot cavity due to
Oil gas ceaselessly take out swaging at concussion caused by energy loss, i.e., solution cross slip-ring movement caused by cross slip-ring and branch
Energy loss caused by oil gas is taken out, pressed in frame sliding slot cavity.
The present invention proposes a kind of scroll compression machine support, and the fluting conduct of groove face side is slid up below compressor direction of rotation
Gas channel, in compressor operation, cross slip-ring sucks refrigerant from low-pressure side, and indentation bracket fluting face supplies oil-air lubrication
Stress surface, while reducing energy loss caused by the pumping, pressure of refrigerant in this cavity.
As shown in figure 4, side channel is opened in bracket chute second side as gas channel, during the operation of the compressor,
Axial hole enters the cavity that bracket and cross slip-ring form from low-pressure area oil suction gas on bracket, oily in cavity with link motion
Air pressure enters at newly-increased sliding slot, lubrication, cooling stress surface.
Since bracket chute is different from the two sides stress of cross slip-ring relative motion, direction is (i.e. under its direction of rotation
Direction of rotation downstream) two sides stress is relatively large, therefore slot in this position, as shown in figure 4, compressor is to rotate clockwise fortune
Row.
Preferably, the recess channels 15 along the bracket 1 axial direction (the identical side of i.e. described sliding slot depth
To) open up predetermined depth and than the depth as shallow of the sliding slot 11 (i.e. axial height of the axial height of recess channels than sliding slot
It is small).The bracket be with it is as shown in Figure 4 it is discoid, it is axial consistent with the direction of compressor electric motor shaft, be arranged with one heart
Outside shaft.Recess channels, which are opened up predetermined depth along bracket axial direction, enables to recess channels from depth direction and cunning
Slot is connected, makes oil gas (or refrigerant and oily gaseous mixture) that can reach the recess channels via second side, and by groove
The depth in channel be set as the depth as shallow than sliding slot, can be effectively prevented cross slip-ring and sliding slot cooperation position sliding slot week
Offset is generated on direction, effectively guarantees that sliding slot to the position-limiting action of cross slip-ring or even movable orbiting scroll, limits movable orbiting scroll
Rotation.
Preferably, the recess channels 15 are with the radial direction at the center from the radial outer end of the bracket 1 towards the bracket
Direction opens up.I.e. recess channels in radial directions outside-in carry out extend open up.Enable recess channels in this way
Effect some or all of radially is lubricated to the second side of sliding slot, lubrication area is increased, reduces partially
Mill degree improves the reliability and service life of bracket.
Preferably, the recess channels 15 extend along the radial direction length and the sliding slot 11 are along the radial direction side
To the equal length of extension.Maximum length lubricating action can be played in radial directions to second side in this way, realize
Farthest reduce eccentric wear, improves bracket reliability and service life.
Preferably, along the radial direction of the bracket 1, the width of the recess channels 15 is consistent.This is this hair
The preferred embodiment of bright embodiment 1 is consistent, one rectangular item of formation in the width of bracket radial direction recess channels
Shape channel.
Preferably, the sliding slot 11 be even number, each pair of sliding slot each along the bracket center at be symmetrical arranged,
And it is adjacent in the second side 14 of each sliding slot 11 and is provided with the recess channels 15.This is cunning of the invention
The preferred number and preferred arrangement of slot and recess channels set even number and each pair of along carriage center pair for sliding slot
Claim arrangement that can carry out mating reaction, with cross slip-ring to carry out good position-limiting action to movable orbiting scroll；The of each sliding slot
Two side faces be respectively provided with recess channels can the stress surface to each sliding slot play the role of good anti-attrition and reduce concussion function
Consumption farthest improves the operational reliability of bracket.
Preferably, the sliding slot 11 is 2, and the recess channels 15 are also 2.
Embodiment 2
As Figure 7-9, the present embodiment is the corresponding improvement made on the basis of embodiment 1, it is preferable that along described
The width of the radial direction of bracket 1, the recess channels 15 is not consistent.This is the recessed of scroll compression machine support of the invention
Oil gas in sliding slot equally can be also directed into the recess channels by the preferred constructive form in slot channel via second side, with
Lubrication is formed to the second side and reduces oil gas from venthole reciprocal concussion power consumption back and forth.
Preferably, from the center of the bracket 1 in radially outward direction, the width of the recess channels 15 gradually increases
Greatly, wedgy passage is formed.As shown in fig. 7, the radial outer end of bracket can not flow after entering to recess channels from sliding slot due to oil gas
It is logical, axial also to be blocked, therefore oil gas can only be back in shell from the central hole of radially inner side；So the circulation of oil gas
Channel can only be along being radially orientated centre bore flowing, the width by recess channels from the width of radial outside to radially inner side by
It is decrescence small, enable to the oil-gas accumulation closer to centre bore in the position close to second side, to further improve pair
The lubricant effect of second side.As shown in fig. 7, gas channel open up for the not parallel shape in center, from be extended to center inclination cloth
It sets, interface is gradually narrowed from being extended to center, and oil gas supply cross slip-ring side wall is more advantageous to, and lubricant effect becomes apparent from.
Alternate embodiment
Preferably, it is also opened with being connected in the adjacent position of the first side 13 of the sliding slot 11 with the sliding slot 11
Equipped with the second recess channels (not shown).It can be further improved in this way to effect is also lubricated at first side
To the lubricant effect of sliding slot, the operational reliability and service life of scroll compression machine support are increased.
Embodiment 3
The present invention also provides a kind of screw compressors comprising scroll compression machine support above-mentioned.By along compression
The adjacent position of the second side of the sliding slot in the direction of rotation downstream side of machine machine shaft offers with being connected with the sliding slot
Recess channels enable to oil gas that can enter in the recess channels by second side (sliding slot stress surface), thus to this
Sliding slot stress surface forms good lubricating action, is effectively prevented and reduces the stress surface eccentric wear of bracket chute and cross slip-ring
Abnormal situation improves the bracket even reliability and service life of compressor；
By above-mentioned means, lead to due to enabling oil gas to enter the groove by second side (sliding slot stress surface)
In road, additionally it is possible to be effectively prevented oil gas from venthole backtracking discharge bracket, significantly reduce in sliding slot cavity due to
Oil gas ceaselessly take out swaging at concussion caused by energy loss.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (8)
1. a kind of scroll compression machine support, it is characterised in that: including for the cross slip-ring with screw compressor match to
A few sliding slot (11) is additionally provided with the venthole that can be ventilated along bracket axial direction perforation inside the sliding slot
It (12), include under being located at the first side (13) of upstream and being located at along the direction of rotation of compressor electric motor shaft, the sliding slot
The second side (14) of trip, and adjacent with second side position on the bracket (1) is connected with the sliding slot
Ground is also provided with recess channels (15)；
Along the radial direction of the bracket (1), the width of the recess channels (15) is not consistent, from the bracket (1)
Center is in radially outward direction, the width of the recess channels (15) is gradually increased；The bracket is discoid.
2. scroll compression machine support according to claim 1, it is characterised in that: the recess channels (15) are along the branch
The axial direction of frame (1) opens up predetermined depth and than the depth as shallow of the sliding slot (11).
3. scroll compression machine support described in one of -2 according to claim 1, it is characterised in that: the recess channels (15) with from
The radial direction at center of the radial outer end of the bracket (1) towards the bracket opens up.
4. scroll compression machine support according to claim 3, it is characterised in that: the recess channels (15) are along the radial direction
The equal length that the length and the sliding slot (11) that direction extends extend along the radial direction.
5. scroll compression machine support described in one of -2 according to claim 1, it is characterised in that: the sliding slot (11) is even number
It is a, each pair of sliding slot each along the bracket center at being symmetrical arranged, and described the second of each sliding slot (11)
Side (14), which is adjacent to, is provided with the recess channels (15).
6. scroll compression machine support according to claim 5, it is characterised in that: the sliding slot (11) is 2, the groove
Channel (15) is also 2.
7. scroll compression machine support described in one of -2 according to claim 1, it is characterised in that: in the described of the sliding slot (11)
The adjacent position of first side (13) is also provided with the second recess channels with the sliding slot (11) with being connected.
8. a kind of screw compressor, it is characterised in that: including scroll compression machine support described in one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037363.6A CN106762655B (en) | 2017-01-19 | 2017-01-19 | Scroll compressor support and scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710037363.6A CN106762655B (en) | 2017-01-19 | 2017-01-19 | Scroll compressor support and scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762655A CN106762655A (en) | 2017-05-31 |
| CN106762655B true CN106762655B (en) | 2019-08-27 |
Family
ID=58944104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710037363.6A Active CN106762655B (en) | 2017-01-19 | 2017-01-19 | Scroll compressor support and scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762655B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676261A (en) * | 2017-10-19 | 2018-02-09 | 苏州英华特涡旋技术有限公司 | A kind of screw compressor with lubrication system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020034451A1 (en) * | 2000-09-20 | 2002-03-21 | Nobuo Abe | Closed type motor-operated compressor |
| CN101158351A (en) * | 2007-11-16 | 2008-04-09 | 美的集团有限公司 | Scroll compressor and control method thereof |
| CN105370569A (en) * | 2014-08-26 | 2016-03-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner with same |
| CN105889076A (en) * | 2016-04-25 | 2016-08-24 | 广东美的暖通设备有限公司 | Main frame of scroll compressor and scroll compressor |
| CN206503715U (en) * | 2017-01-19 | 2017-09-19 | 珠海凌达压缩机有限公司 | Scroll compressor support and scroll compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201771774U (en) * | 2010-06-29 | 2011-03-23 | 上海日立电器有限公司 | Support with lubricating function for scroll compressor |
-
2017
- 2017-01-19 CN CN201710037363.6A patent/CN106762655B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020034451A1 (en) * | 2000-09-20 | 2002-03-21 | Nobuo Abe | Closed type motor-operated compressor |
| CN101158351A (en) * | 2007-11-16 | 2008-04-09 | 美的集团有限公司 | Scroll compressor and control method thereof |
| CN105370569A (en) * | 2014-08-26 | 2016-03-02 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner with same |
| CN105889076A (en) * | 2016-04-25 | 2016-08-24 | 广东美的暖通设备有限公司 | Main frame of scroll compressor and scroll compressor |
| CN206503715U (en) * | 2017-01-19 | 2017-09-19 | 珠海凌达压缩机有限公司 | Scroll compressor support and scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762655A (en) | 2017-05-31 |
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| CB02 | Change of applicant information |
Address after: 519070 789 Jinji Road, Qianshan, Xiangzhou District, Zhuhai, Guangdong Applicant after: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI Applicant after: ZHUHAI LANDA COMPRESSOR Co.,Ltd. Address before: 519110 Longshan Avenue, Longshan Industrial Zone, Doumen District, Zhuhai, Guangdong, 1 Applicant before: ZHUHAI LANDA COMPRESSOR Co.,Ltd. Applicant before: GREE ELECTRIC APPLIANCES,Inc.OF ZHUHAI |
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