CN205918599U - Compressor high pressure protection architecture and scroll compressor - Google Patents
Compressor high pressure protection architecture and scroll compressor Download PDFInfo
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- CN205918599U CN205918599U CN201620666909.5U CN201620666909U CN205918599U CN 205918599 U CN205918599 U CN 205918599U CN 201620666909 U CN201620666909 U CN 201620666909U CN 205918599 U CN205918599 U CN 205918599U
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Abstract
The utility model relates to a compressor high pressure protection architecture and be provided with this high pressure protection architecture's scroll compressor, be provided with exhaust chamber and low pressure chamber on the compressor, the high pressure protection architecture include: gaseous diversion channels, but gaseous diversion channels can make by optionally the low pressure chamber with the exhaust chamber is linked together, the motor protection ware, the motor protection ware sets up the low pressure intracavity. The utility model provides an among the compressor high pressure protection architecture, selectively communicate the low pressure chamber at the motor place exhaust chamber with the compressor, can arrive the high temperature high -pressure gas drainage in the chamber of exhausting in the low pressure chamber, when the abnormal pressure appears in the gas of compressor intracavity, high -pressure protection architecture will open, and direct spout the highly compressed gas of high temperature is setting up on the motor protection ware in the low pressure chamber, the tripping operation of motor protection ware, and the compressor stops the operation to realize the protection of compressor abnormal pressure, played the effect of high -pressure protection to the scroll compressor who is in abominable operating mode.
Description
Technical field
This utility model is related to Compressor Technology field and in particular to a kind of compressor high voltage protective structure and being provided with
The screw compressor of this high voltage protective structure.
Background technology
Screw compressor has that structure is simple, small volume, light weight, noise are low, mechanical efficiency is high and the spy such as smooth running
Point.Generally it is not provided with high voltage protective structure in existing common screw compressor, but work as compressor external high pressure protection system
When inoperative, for the severe operating mode comparing, such as High Pressure Difference, high load capacity etc., the sound disk discharge chamber of screw compressor
Interior temperature, pressure will be very high, the phenomenon that sound mill damage accelerates or scroll wrap is engaged, and more severe patient occurs scroll wrap fracture
Situation, this will have a strong impact on service life and the performance of screw compressor.
Utility model content
In view of this, this utility model is to solve above-mentioned technical problem at least in part, provides one kind can be to compression
Machine carries out the compressor high voltage protective structure of high voltage protective and the screw compressor being provided with this high voltage protective structure.
According to of the present utility model in a first aspect, providing a kind of compressor high voltage protective structure, described compressor is arranged
There are discharge chamber and low pressure chamber, described high voltage protective structure includes: air flow guide channel, described air flow guide channel can may be selected
Property described low pressure chamber is made to be connected with described discharge chamber；Motor protecter, described motor protecter is arranged on described low pressure chamber
Interior.
Preferably, also include high voltage protective valve, be arranged between described air flow guide channel and low pressure chamber, when described high pressure
When protection valve is closed, described low pressure chamber is separated with described discharge chamber, when described high voltage protective valve is in open mode
When, described low pressure chamber is connected with described discharge chamber.
Preferably, described high voltage protective valve is provided with input channel and output channel, described input channel and described drain
Passage is connected, and described output channel is connected with described low pressure chamber.
Preferably, described compressor includes movable orbiting scroll and upper bracket, and described movable orbiting scroll is located at the upside of described upper bracket,
It is formed with back pressure cavity between the upper surface of the lower surface of described movable orbiting scroll and described upper bracket.
Preferably, described air flow guide channel includes first gas drainage channel and second gas drainage channel；Described
One end of one air flow guide channel is connected with described discharge chamber, and other end is connected with described back pressure cavity；Described second gas
One end of body drainage channel is connected with described back pressure cavity, and other end is connected with the input channel of described high voltage protective valve.
Preferably, described first gas drainage channel and second gas drainage channel mutually stagger in the circumferential.
Preferably, described high voltage protective valve is positioned close to the position of described motor protecter.
Preferably, described high voltage protective valve is arranged on the surface of described motor protecter.
Preferably, described high voltage protective valve includes valve body and valve element；Described input channel and output channel are formed at described
In valve body, described valve element is arranged in described output channel, is formed with valve seat between described input channel and output channel.
Preferably, it is formed with gap between the outer wall and the conduit wall of output channel of described valve element.
Preferably, in described output channel, one end of described input channel is provided with baffle plate, described baffle plate sets
It is equipped with baffle passageway, one end of described baffle passageway can be connected with described input channel through described output channel, in addition one
End is connected with described low pressure chamber.
Preferably, it is provided with biasing member between described valve element and baffle plate, described biasing member applies direction to described valve element
The bias force of described valve seat.
Preferably, it is formed with valve core channel, one end of described valve core channel and described input channel phase in described valve element
Right, other end is relative with described baffle passageway；The conduit wall of described valve core channel is provided with pore, described pore is by institute
State gap to connect with valve core channel；It is provided with ball between described valve core channel and valve seat.
Preferably, described high voltage protective valve is fixed on the downside of described upper bracket.
According to second aspect of the present utility model, provide a kind of screw compressor, including motor and compression assembly, described pressure
Contracting assembly includes fixed scroll and movable orbiting scroll, is provided with the high voltage protective structure in the application, and wherein, described discharge chamber is formed at institute
State between fixed scroll and movable orbiting scroll, described motor is arranged on described low pressure intracavity.
In the compressor high voltage protective structure that this utility model provides, the aerofluxuss of low pressure chamber that motor is located and compressor
Chamber selectively connects, and can drain in described low pressure chamber by the high temperature and high pressure gas in discharge chamber, when compressor air-discharging intracavity
Gas when abnormal pressure and pressure be higher than certain predetermined value, high voltage protective structure will be opened, directly by High Temperature High Pressure
Gas be sprayed on the motor protecter being arranged in low pressure chamber, motor protecter trip, compressor shuts down, thus realizing
Compressor abnormal pressure is protected, and the screw compressor being in bad working environments is served with the effect of high voltage protective.Especially by height
When pressure protection valve is arranged on the surface of described motor protecter, the motor immediately below being sprayed directly on to is protected by the gas of High Temperature High Pressure
On shield device, high voltage protective structural response is sensitive, and starting time is short.
Brief description
By the description to this utility model embodiment referring to the drawings, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings:
Fig. 1 is the compressor arrangement schematic diagram being provided with high voltage protective structure in the application；
Fig. 2 is a portion enlarged drawing in Fig. 1；
Fig. 3 is the high voltage protective valve arrangement schematic diagram in the application.
Specific embodiment
It is more fully described various embodiment of the present utility model hereinafter with reference to accompanying drawing.In various figures, identical
Element to be represented using same or similar reference.For the sake of clarity, the various pieces in accompanying drawing are not drawn to paint
System.
As shown in Figure 1-2, the screw compressor in the application includes motor 1, high voltage protective valve 3, upper bracket 4, fixed scroll
6th, the part such as movable orbiting scroll 12, cross slip-ring 13, crankshaft group 16, housing unit 10.Described motor 1 is fixed on housing unit 10
On.Described upper bracket 4 is fixed on housing unit 10, for example, be fixed by welding.Described high voltage protective valve 3 is fixed on institute
State the downside of upper bracket 4.Described movable orbiting scroll 12 and fixed scroll 6 are arranged on the upside of described upper bracket 4, both carrier phase shift
Opposed in 180 degree it is arranged on upper bracket 4.Described fixed scroll 6 and movable orbiting scroll 12 constitute compression assembly and gas can be pressed
Contracting, specifically, described movable orbiting scroll 12 can move under the driving of crankshaft group 16, engage a series of phases of formation with fixed scroll 6
Mutually isolation and volume continually varying crescent closed containing cavity, refrigerant gas are compressed in these closed containing cavities, become
Discharge chamber 18 is entered after high temperature and high pressure gas.The upside of described fixed scroll 6 is provided with high-low pressure chamber demarcation strip 7, described quiet whirlpool
The top of disk 6 is inserted in described high-low pressure chamber demarcation strip 7, and keeps joining with high-low pressure chamber demarcation strip 7 by fixed scroll sealing ring 9
Close the sealing in gap.Guide pillar 11 is provided with described upper bracket 4, described guide pillar 11 can arrange multiple.Institute in work process
State fixed scroll 6 to fluctuate in the axial direction along guide pillar 11, that is, there is axial elasticity.Described high-low pressure chamber demarcation strip 7 and upper
Cap assemblies 8 are fixed by welding on housing 10, form high pressure gas between described high-low pressure chamber demarcation strip 7 and cover assembly 8
Chamber 81.The upper end of described crankshaft group 16 is provided with eccentric bushing 15, described movable orbiting scroll 12 and the cooperation of described eccentric bushing 15 gap.
It is provided with cross slip-ring 13 between described movable orbiting scroll 12 and upper bracket 4, for limiting the rotation of described movable orbiting scroll 12.Compressor
During operating, described motor 1 drives crankshaft group 16 to rotate, and described crankshaft group 16 drives eccentric bushing 15 and movable orbiting scroll 12 to move,
Under the anti-rotation of described cross slip-ring 13 limits, described movable orbiting scroll 12 around the bent axle in crankshaft group 16 center with fixation
Radius do translational motion.The refrigerant gas entering from compressor are inhaled into shape between described movable orbiting scroll 12 and fixed scroll 6
The crescent air-breathing intracavity becoming, is entered described after overcompression from described discharge chamber 18 by the steam vent being arranged on fixed scroll 6
In high pressure gas chamber 81, it is then discharged out described compressor.
Described movable orbiting scroll 12 includes interconnective movable orbiting scroll end plate 121 and movable orbiting scroll snail volume 122, described movable orbiting scroll end plate
121 downsides being located at described movable orbiting scroll snail volume 122.The upper surface of described upper bracket 4 is relative with the lower surface of movable orbiting scroll end plate 121
Setting.It is provided with the first sealing ring 5 and second between the upper surface and the lower surface of movable orbiting scroll end plate 121 of described upper bracket 4
Sealing ring 14, the upper surface of described upper bracket 4, the lower surface of movable orbiting scroll end plate 121, the first sealing ring 5 and the second sealing ring 14
Between enclose back pressure cavity 20.
As shown in Figure 1-2, first gas drainage channel 17, described first gas are offered on described movable orbiting scroll end plate 121
One end of body drainage channel 17 is connected with described discharge chamber 18, and other end is connected (referring to Fig. 2) with described back pressure cavity 20,
For the high temperature and high pressure gas in described discharge chamber 18 are drained in described back pressure cavity 20.Described upper bracket 4 is provided with
Second gas drainage channel 19.One end of described second gas drainage channel 19 is connected with described back pressure cavity 20, other end
It is connected with described high voltage protective valve 3 (being discussed in detail below), for drawing the high temperature and high pressure gas in described back pressure cavity 20
Flow in high voltage protective valve 3.Preferably, described first gas drainage channel 17 and second gas drainage channel 19 phase in the circumferential
Mutually stagger, it is further preferred that differ in the circumferential between the two arranging in 180 degree, so so that gas in back pressure cavity 20
Body forms stable back pressure to described movable orbiting scroll 12.When compressor is in running order, from the gases at high pressure of discharge chamber 18 extraction
Enter in described back pressure cavity 20 by described first drainage channel 17, the gas pressure axially upwards that the gas in back pressure cavity 20 is formed
Power makes described movable orbiting scroll 12 be in quick condition in the course of the work, and makes to protect between described movable orbiting scroll 12 and fixed scroll 6
Hold compression sealing state.
As shown in figure 3, described high voltage protective valve 3 includes valve body 30 and valve element 31.It is formed with described valve body 31 mutually
The input channel 32 connecting and output channel 33, described valve element 31 is arranged in described output channel 33, in described valve element 31
It is formed with gap 311 between the conduit wall of outer wall and output channel 33.Shape between described input channel 32 and output channel 33
Become to have valve seat 34.In described output channel 33, one end of described input channel 32 is provided with baffle plate 35, described baffle plate 35 can
To be integrally formed it is also possible to split is formed with described valve body 30.Baffle passageway 351, described gear are provided with described baffle plate 35
One end of board channel 351 can be connected with described input channel 32 through described output channel 33, other end with positioned at upper
The low pressure chamber 21 (motor 1 place chamber, referring to Fig. 1) of frame 4 downside is connected.Preferably, between described valve element 31 and baffle plate 35
It is provided with biasing member 36, described biasing member 36 is preferably spring.Described biasing member 36 applies towards described valve to described valve element 31
The bias force of seat 34, when not having gases at high pressure input, or when input in described input channel 32 in described input channel 32
Gas pressure be less than during the bias force that described biasing member 36 applies so that described valve element 31 can tightly abut against described valve
So that described high voltage protective valve 3 is closed on seat 34.Now, described low pressure chamber 21 and discharge chamber 18 separate, discharge chamber
High temperature and high pressure gas in 18 can not enter in described low pressure chamber 21.
As shown in Figure 1, Figure 3, the outer wall of the one end near described input channel 32 in described valve body 30 is provided with outer spiral shell
Stricture of vagina 301.Corresponding screwed hole is provided with the downside end face of described upper bracket 4, described high voltage protective valve 3 can pass through described
The cooperation of external screw thread 301 and screwed hole and be fixed on the downside end face of described upper bracket 4.In a preferred embodiment, exist
It is provided with motor protecter 2 on described motor 1, when the temperature in described low pressure chamber 21 raises, so that described electric motor protecting
When the temperature of device 2 raises to a certain extent, described motor protecter 2 can trip power-off so that compressor quits work, to institute
State motor 1 to play a protective role.Described high voltage protective valve 3 is positioned close to the position of described motor protecter 2, preferably arranges
In the surface of described motor protecter 2, the distance between described high voltage protective valve 3 and motor protecter 2 so can be made relatively
Closely.When screw compressor is in the relatively more severe operating mode such as High Pressure Difference, high load capacity, described movable orbiting scroll 12 and fixed scroll 6 suck
Low temperature low pressure gas be compressed to during described discharge chamber 18 formation high temperature and high pressure gas, this high temperature and high pressure gas passes through described first
Drainage channel 17 enters in back pressure cavity 20, (needs exist for illustrating, the state shown in Fig. 2 is stopped for compressor as shown in Figure 1-2
State during machine, in normal work, described movable orbiting scroll 12 is to float in the axial direction, and that is, it is an off with upper bracket 4,
It is formed with described back pressure cavity 20) between movable orbiting scroll 12 and upper bracket 4.The pressure and temp of gas in described back pressure cavity 20 with described
The pressure and temp of the gas in discharge chamber 18 is almost identical.
As Figure 1-3, when the gas pressure in described discharge chamber 18 exceedes certain predetermined value, described back pressure cavity 20
Interior high temperature and high pressure gas are led to by the input that the second drainage channel 19 on described upper spider 4 enters described high voltage protective valve 3
In road 32, when the gas pressure that high temperature and high pressure gas produce is more than the bias force of described biasing member 36, described valve element 31 leaves
Described valve seat 34, described high voltage protective valve 3 is opened so that connecting between described discharge chamber 18 and described low pressure chamber 21, and high temperature is high
Body of calming the anger enters described high voltage protective valve 3 through first gas drainage channel 17, back pressure cavity 20, second gas drainage channel 19, so
Enter in described low pressure chamber 21 by the gap 311 in described high voltage protective valve 3 and baffle passageway 351 afterwards, these gases can quilt
Again suck and be compressed between described movable orbiting scroll 12 and fixed scroll 6, so that subtracting from the outside low temperature low pressure gas sucking
Less, As time goes on, the gas temperature more and more higher in low pressure chamber 21, described motor protecter 2 is due to the low temperature sucking
The minimizing of gas and be heated, during the power-off temperature reaching motor protecter 2 to certain value when temperature is high, described motor protecter
2 tripping operation power-off, compressor shutdown.And, the high temperature and high pressure gas due to exporting from described high voltage protective valve 3 are sprayed directly on to described
The top of motor protecter 2, the temperature around described motor protecter 2 can be than temperature elsewhere in described low pressure chamber 21
Height, so, time of motor protecter 2 response can comparatively short so that the startup of described high voltage protective faster, be capable of more added with
The high voltage protective of effect.
As shown in figure 3, in another preferred embodiment, it is formed with valve core channel 312 in described valve element 31, described
One end of valve core channel 312 is relative with described input channel 32, and other end is relative with described baffle passageway 351.In described valve
Pore 38 is provided with the conduit wall of core passage 312, described gap 311 is connected by described pore 38 with valve core channel 312.Institute
State and between valve core channel 312 and valve seat 34, be provided with ball 37, in the presence of the bias force of described biasing member 36, described ball
37 can tightly abut against on described valve seat 34 such that it is able to make described high voltage protective valve under the promotion of described valve element 31
3 are closed.When the pressure of the high temperature and high pressure gas of input in described input channel 32 provides more than described biasing member 36
Bias force when, high temperature and high pressure gas promote described ball 37 to leave described valve seat 34, so that 3 dozens, described high voltage protective valve
Open, high temperature and high pressure gas pass sequentially through described gap 311, pore 38, valve core channel 312, output channel 33 and baffle passageway 351
Enter in described low pressure volumes 21.
In the compressor high voltage protective structure that the application provides, the low pressure chamber 21 that motor 1 is located by high voltage protective valve 3
Selectively connect with the discharge chamber 18 of compressor, the high temperature and high pressure gas in discharge chamber 18 can be drained into described low pressure chamber 21
In, when abnormal pressure in the gas in compressor discharge chamber 18 and pressure is higher than certain predetermined value, high voltage protective structure
To open, directly the gas of High Temperature High Pressure be sprayed on the motor protecter 2 being arranged in low pressure chamber 21, motor protecter 2 is jumped
Lock, compressor shuts down, thus realizing the protection of compressor abnormal pressure, the screw compressor being in bad working environments is served
The effect of high voltage protective.Especially high voltage protective valve 3 is arranged on described motor protecter 2 surface when, High Temperature High Pressure
, by the motor protecter 2 immediately below being sprayed directly on to, high voltage protective structural response is sensitive, and starting time is short for gas.
It should be noted that in this application, such as first and second or the like relational terms are used merely to one
Entity or operation are made a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
There is any this actual relation or order.
Unless otherwise defined, the technology of technology used herein and scientific terminology and technical field of the present utility model
The implication that personnel are generally understood that is identical.Term used herein is intended merely to describe specific enforcement purpose it is not intended that limiting
This utility model processed.Terms such as herein presented " parts " both can represent single part it is also possible to represent multiple
The combination of part.Terms such as herein presented " installations ", " setting " both can represent that a part was attached directly to separately
One part is it is also possible to represent that a part is attached to another part by middleware.Herein in one embodiment
The feature of description individually or with further feature can be applied to another embodiment, unless this feature is another at this in combination
Inapplicable or be otherwise noted in individual embodiment.
This utility model is illustrated by above-mentioned embodiment, but it is to be understood that, above-mentioned embodiment
It is only intended to citing and descriptive purpose, and be not intended to this utility model is limited in the range of described embodiment.This
Skilled person it is understood that more kinds of variants and modifications can also be made according to teaching of the present utility model, this
Within a little variants and modifications all fall within this utility model scope required for protection.
Claims (15)
1. a kind of compressor high voltage protective structure, described compressor is provided with discharge chamber (18) and low pressure chamber (21), its feature
It is, described high voltage protective structure includes:
Air flow guide channel (17,19), described air flow guide channel (17,19) can optionally make described low pressure chamber (21)
It is connected with described discharge chamber (18)；
Motor protecter (2), described motor protecter (2) is arranged in described low pressure chamber (21).
2. compressor high voltage protective structure according to claim 1 it is characterised in that
Also include high voltage protective valve (3), be arranged between described air flow guide channel (17,19) and low pressure chamber (21), when described
When high voltage protective valve (3) is closed, described low pressure chamber (21) is separated with described discharge chamber (18), when described high voltage protective
When valve (3) is in open mode, described low pressure chamber (21) is connected with described discharge chamber (18).
3. compressor high voltage protective structure according to claim 2 is it is characterised in that described high voltage protective valve (3) is arranged
There are input channel (32) and output channel (33), described input channel (32) is connected with described drainage channel (19), described defeated
Go out passage (33) to be connected with described low pressure chamber (21).
4. compressor high voltage protective structure according to claim 3 it is characterised in that
Described compressor includes movable orbiting scroll (12) and upper bracket (4), and described movable orbiting scroll (12) is located at the upper of described upper bracket (4)
Side, is formed with back pressure cavity (20) between the upper surface of the lower surface of described movable orbiting scroll (12) and described upper bracket (4).
5. compressor high voltage protective structure according to claim 4 it is characterised in that
Described air flow guide channel (17,19) includes first gas drainage channel (17) and second gas drainage channel (19)；
One end of described first gas drainage channel (17) is connected with described discharge chamber (18), other end and described back pressure cavity
(20) it is connected；
One end of described second gas drainage channel (19) is connected with described back pressure cavity (20), and other end is protected with described high pressure
The input channel (32) of shield valve (3) is connected.
6. compressor high voltage protective structure according to claim 5 is it is characterised in that described first gas drainage channel
(17) mutually stagger in the circumferential with second gas drainage channel (19).
7. the compressor high voltage protective structure according to any one of claim 2-6 is it is characterised in that described high voltage protective valve
(3) it is positioned close to the position of described motor protecter (2).
8. compressor high voltage protective structure according to claim 7 is it is characterised in that described high voltage protective valve (3) is arranged
Surface in described motor protecter (2).
9. the compressor high voltage protective structure according to any one of claim 3-6 is it is characterised in that described high voltage protective valve
(3) valve body (30) and valve element (31) are included；Described input channel (32) and output channel (33) are formed in described valve body (30),
Described valve element (31) is arranged in described output channel (33), is formed between described input channel (32) and output channel (33)
There is valve seat (34).
10. compressor high voltage protective structure according to claim 9 is it is characterised in that outer wall in described valve element (31)
It is formed with gap (311) and the conduit wall of output channel (33) between.
11. compressor high voltage protective structures according to claim 10 are it is characterised in that remote in described output channel (33)
One end of described input channel (32) is provided with baffle plate (35), baffle passageway (351), institute are provided with described baffle plate (35)
The one end stating baffle passageway (351) can be connected with described input channel (32) through described output channel (33), other end
It is connected with described low pressure chamber (21).
12. compressor high voltage protective structures according to claim 11 are it is characterised in that in described valve element (31) and baffle plate
(35) it is provided with biasing member (36) between, described biasing member (36) applies inclined towards described valve seat (34) to described valve element (31)
Put power.
13. compressor high voltage protective structures according to claim 12 are it is characterised in that form in described valve element (31)
Have valve core channel (312), one end of described valve core channel (312) is relative with described input channel (32), other end with described
Baffle passageway (351) is relatively；Pore (38) is provided with the conduit wall of described valve core channel (312), described pore (38) will
Described gap (311) connects with valve core channel (312)；It is provided with ball between described valve core channel (312) and valve seat (34)
(37).
14. compressor high voltage protective structures according to claim 4 are it is characterised in that described high voltage protective valve (3) is fixing
On the downside of described upper bracket (4).
A kind of 15. screw compressors, including motor (1) and compression assembly, described compression assembly includes fixed scroll (6) and movable orbiting scroll
(12) it is characterised in that being provided with the high voltage protective structure described in any one of claim 1-14, wherein, described discharge chamber
(18) it is formed between described fixed scroll (6) and movable orbiting scroll (12), described motor (1) is arranged in described low pressure chamber (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620666909.5U CN205918599U (en) | 2016-06-27 | 2016-06-27 | Compressor high pressure protection architecture and scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620666909.5U CN205918599U (en) | 2016-06-27 | 2016-06-27 | Compressor high pressure protection architecture and scroll compressor |
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| Publication Number | Publication Date |
|---|---|
| CN205918599U true CN205918599U (en) | 2017-02-01 |
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| CN201620666909.5U Active CN205918599U (en) | 2016-06-27 | 2016-06-27 | Compressor high pressure protection architecture and scroll compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971884A (en) * | 2016-06-27 | 2016-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | High pressure protecting structure for compressor and scroll compressor |
| CN114215757A (en) * | 2021-12-17 | 2022-03-22 | 珠海格力电器股份有限公司 | Oil return structure, compressor and air conditioner |
-
2016
- 2016-06-27 CN CN201620666909.5U patent/CN205918599U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971884A (en) * | 2016-06-27 | 2016-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | High pressure protecting structure for compressor and scroll compressor |
| CN105971884B (en) * | 2016-06-27 | 2018-03-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor high voltage protective structure and screw compressor |
| CN114215757A (en) * | 2021-12-17 | 2022-03-22 | 珠海格力电器股份有限公司 | Oil return structure, compressor and air conditioner |
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