CN203285689U - Rolling rotor type compressor - Google Patents
Rolling rotor type compressor Download PDFInfo
- Publication number
- CN203285689U CN203285689U CN2013202765526U CN201320276552U CN203285689U CN 203285689 U CN203285689 U CN 203285689U CN 2013202765526 U CN2013202765526 U CN 2013202765526U CN 201320276552 U CN201320276552 U CN 201320276552U CN 203285689 U CN203285689 U CN 203285689U
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- compressor
- cylinder
- moving element
- dividing plate
- elastic member
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Abstract
The utility model discloses a rolling rotor type compressor which is provided with an upper flange, a lower flange and cylinders and further comprises partition boards adjacent to the cylinders, wherein a high-pressure protection device is arranged in the partition boards and comprises an elastic component and a moving component; when the pressure in a compressor housing is too high, the moving element enters a compression cavity to clamp rollers under the action of gas pressure in the inner cavity of the compressor housing so as to stop the compressor, so that the phenomenon that the pressure in the compressor housing is further increased to cause a failure or even an accident of the compressor is prevented. The rolling rotor type compressor with the built-in high-pressure protection device has the advantages of higher reliability and safety.
Description
Technical field
The utility model relates to the Compressor Technology field, especially a kind of rolling rotor type compressor.
Background technique
Rolling rotor type compressor mainly is comprised of main parts size such as cylinder, roller, upper lower flange, bent axle, slide plates, rotation along with motor, the gas compression that the rotation of crankshaft eccentric section will suck is also discharged, in prior art when air-conditioning system Rig up error or system congestion or while because of other reasons, causing the compressor internal pressure too high, exhaust pressure rises and easily causes the damage of compressor over the operating limit pressure of compressor, the security incident such as even blast, affect reliability and the Security of product.
The model utility content
One of the purpose of this utility model is, a kind of rolling rotor type compressor is provided, and, to prevent compressor fault or loss under abnormal pressure, improves reliability and the Security of compressor.
In order to realize above-mentioned purpose of the present utility model, the technological scheme that adopts is:
A kind of rolling rotor type compressor; comprise housing and be arranged on bent axle, roller, upper flange, lower flange and cylinder in described housing inner chamber; also comprise; be sheathed on bent axle and with the first dividing plate of the adjacent setting of cylinder; be provided with the communicating passage that is communicated with the compression chamber in described housing inner chamber and described cylinder in the first dividing plate; be provided with high pressure protector in communicating passage, high pressure protector comprises elastic member and is used for hindering the moving element that described roller rotates.
Further, communicating passage is communicated with the low voltage side of described compression chamber.
Further, the inwall gap of moving element and communicating passage sealing.
Further, be provided with in communicating passage be used to the first limited part that limits described moving element extreme displacement.
Further, moving element is thimble structure, and elastic member is Compress Spring, and Compress Spring is set on thimble structure.
Further, the size relationship of moving element and elastic member is:
P
d*S
1＝P
xS
2+K(L
1-L
2)+KL
4
P in formula
dFor high pressure protector operating pressure, S
1For moving element is communicated with side surface area, P with the compression case intracoelomic cavity
xFor pressure of inspiration(Pi), S
2For moving element is communicated with side surface area with the compressor compresses chamber, K is the elastic member stiffness coefficient, L
1For the former length of elastic member, L
2For the length after the elastic member installation, L
4For communicating passage is reserved safe length.
Further, this compressor is multicylinder compressor.
Further, this multicylinder compressor is duplex cylinder compressor, and this duplex cylinder compressor comprises upper cylinder, lower cylinder and second partition, and what the first dividing plate and second partition were adjacent is arranged between upper cylinder and lower cylinder.
Further, the first dividing plate and the second partition structure that is formed in one.
Further, this multicylinder compressor is duplex cylinder compressor, and this duplex cylinder compressor comprises upper flange, upper cylinder, lower cylinder and lower flange, and the first dividing plate is arranged between upper flange and upper cylinder or between lower cylinder and lower flange.
Rolling rotor type compressor of the present utility model compared with prior art, has the following advantages:
1) compressor of the present utility model is built-in with high pressure protector, when compressor when special circumstances produce high pressure, the high pressure protector action, entering compression chamber sharply rises the moment of roller, make compressor enter stoppage protection, when internal pressure drops to normal range (NR), compressor can recover normal operation, can effectively prevent the compressor security incidents such as producing blast that under high pressure breaks down even, and can not produce and destroy compressor, can save maintenance cost, improve reliability and the Security of compressor operating;
2) high pressure protector is simple in structure, and versatility is better, is easy to realize, can be applicable to single cylinder or multicylinder compressor.
Description of drawings
Fig. 1 is the axial sectional view of the compressor arrangement of the utility model the first mode of execution;
Fig. 2 is the partial enlarged drawing of Fig. 1 mesohigh protective gear while not moving;
Partial enlarged drawing when Fig. 3 is Fig. 1 mesohigh protective gear working state;
Fig. 4 is the sectional view of the E-E direction of compressor in Fig. 1;
Fig. 5 is the axial sectional view of the compressor arrangement of the utility model the 3rd mode of execution;
Fig. 6 is the axial sectional view of the compressor arrangement of the utility model the 4th mode of execution;
Reference character is as follows:
Bent axle 1, baffler 2, upper flange 3, upper roller 4, upper cylinder 5, second partition 6, moving element 7, elastic member 8, the first dividing plates 9, lower roller 10, lower cylinder 11, lower flange 12, intakeport 13, slide plate 14, relief opening 15
Embodiment
1-6 describes the utility model below in conjunction with accompanying drawing:
The compressor internal high-voltage protective gear that the application proposes, go for single cylinder, twin-tub or multi-cylinder rolling rotor type compressor.Below, take duplex cylinder compressor as example, specifically set forth the utility model:
(the first mode of execution)
As shown in Figure 1, be the sectional view (compressor housing is not shown) of rolling rotor-type duplex cylinder compressor, it comprises that the drive roller that is used for that is arranged in compressor housing has rotated the bent axle 1 of gas compression, and roller comprises roller 7 and lower roller 11; Be sheathed on the cylinder of roller periphery, cylinder comprises upper cylinder 5 and lower cylinder 11; Be arranged at the cylinder two ends and seal simultaneously upper flange 3 and the lower flange 12 of upper cylinder 8, lower cylinder 11 formation compression chambers for support bent axle 1; Be arranged at first dividing plate 9 and second partition 6 between upper cylinder 5 and lower cylinder 11; the first dividing plate 9 is between second partition 6 and lower cylinder 11; the first dividing plate 9 and second partition 6 are provided with the compressor gas communication paths of the intakeport of the relief opening that is communicated with lower cylinder 11 and upper cylinder 5, are provided with the high pressure protector that affects compressor reliability and Security be used to preventing that the compressor housing chamber pressure is excessive in the first dividing plate 9.In order better to realize better sealing and assembling, the internal diameter of the first dividing plate 9 equates with the diameter of bore of second partition 6, and the first dividing plate 9 and second partition 6 are that two discrete parts or one are processed (modes such as casting, powder metallurgy or machining) moulding.
The lower end surface of the first dividing plate 9 is provided with the first perforate, and the first perforate is communicated with the compression chamber of lower cylinder 11, and the projection of the first opening in horizontal plane is positioned at the compression chamber of lower cylinder 11.The side of second partition 6 is provided with the second perforate, and the second perforate is communicated with the compression case intracoelomic cavity.Simultaneously, the communicating passage in the first dividing plate 9 and interior formation connection the first perforate of second partition 6 and the second perforate, be provided with high pressure protector in this communicating passage.Preferably, this communication channel comprises radial passage and axial passage, and high pressure protector is arranged in axial passage.
This high pressure protector comprises moving element 7 and elastic member 8; moving element 7 comprises head and afterbody; head is pressure-bearing section; afterbody is obstruction section; head is used for bearing the pressure from the housing inner chamber, and when the pressure of compression case intracoelomic cavity reached certain value, head was subjected to the effect of housing inner chamber air pressure; the motion of promotion thimble, make afterbody stretch out the first dividing plate 9 and enter in the lower cylinder compression chamber to hinder the motion of roller.Moving element 7 is thimble structure in the present embodiment, and elastic member 8 is Compress Spring, and Compress Spring is enclosed within on thimble, and the upper end of Compress Spring contacts with the lower end of thimble head.Except thimble shape structure, moving element 7 can also be realized with multiple equivalents, as beveled structure, cone structure, prismatic structures etc.
As shown in Figure 2 and Figure 3; the working procedure of this high pressure protector is as follows: during compressor operating; if the pressure of compressor inner chamber is under normal pressure range; moving element 7 pressure-bearing sections are compressed the effect of machine chamber pressure; moving element 7 produces downward displacements, and because pressure is less, the displacement that moving element 7 produces is the reservation safe length L4 in the first dividing plate 9 during less than design; therefore the afterbody of moving element 7 does not stretch out the first dividing plate, and compressor can run well.if the pressure of compressor has exceeded normal range (NR), the displacement that produces after moving element 7 head pressurizeds is greater than reserving safe length L4, moving element 7 heads will stretch out the first dividing plate and enter the lower cylinder compression chamber, rotation along with bent axle, lower roller 11 touches moving element 7, when lower roller 11 touches moving element 7, lower roller 11 is subject to the tangential force effect of moving element 7, the compressor electric motor torque sharply increases, electric current rises rapidly, controller forms overcurrent protection, thereby stoping roller to rotate shuts down compressor, reach under high pressure stoppage protection purpose of compressor.When the compressor internal pressure drops to normally-pressured neighbor, due to the effect of elastic member 8, moving element 7 repositions, compressor can recover to run well, and can not produce and destroy compressor.
Be provided with the first limited part and the second limited part in above-mentioned connecting passage, by the stroke of the first limited part and the second limited part upstop 7.When compressor do not work or the compressor chamber pressure hour; the head of moving element 7 is against on the second limited part; when the compressor chamber pressure is excessive; moving element 7 moves in communicating passage; the first limited part is used for the extreme displacement of upstop 7, and the first limited part can also prevent elastic member 8 because overcompression produces damage inactivation simultaneously, so both can guarantee that moving element 7 stretches out the first dividing plate 9 and is applied on roller; can protect elastic member again, guarantee its working life.In the present embodiment, the first limited part and the second limited part are ledge structure.For the ease of the assembling of high pressure protector, the first limited part and the second limited part are arranged at respectively in axial passage in the first dividing plate 9 and second partition 6.
As shown in Figure 4, according to the position of intakeport 13 and relief opening 15 and the compression process of gas, slide plate 14 is divided the compression chamber in cylinder suction side and the exhaust side at place, because the pressure of exhaust side is higher than the pressure of suction side, so exhaust side is called again high pressure side, suction side is called again low voltage side.Preferably, connecting passage is communicated with the low voltage side of compression chamber, and moving element 7 stretches out the low voltage side that enters compression chamber from the first dividing plate 9.This is to change because of the variation of the pressure in the compression chamber high pressure side with the crankshaft rotating angle, and pressure surge is larger, and compression chamber low voltage side internal pressure is steady, and pressure range is less in system, easily realize controlling, and accuracy and the accuracy controlled is also higher.
The dimensional structure of moving element 7 and elastic member 8 can design with reference to following formula:
P
d*S
1＝P
xS
2+K(L
1-L
2)+KL
4
P in formula
dFor the high pressure protector operating pressure, the high pressure protector operating pressure according to compressor the safety pressure limit under different refrigeration systems determine, S
1For moving element 7 heads (the moving element high pressure side namely is communicated with side with the compressor inner chamber) area, P
xFor pressure of inspiration(Pi), S
2For moving element 7 afterbodys (the moving element low voltage side is communicated with side with the compression chamber of compressor) area, K is the elastic member stiffness coefficient, L
1For the former length of elastic member, L
2For the length after the elastic member installation, L
4For communicating passage is reserved safe length (as shown in Figure 2), while for compressor, working, the issuable small movements of moving element 7 is reserved certain space and is prevented that the pulsation of compressor internal gas from affecting the protective gear action.
In the travel range of moving element 7, the head of moving element 7 is Spielpassung with the inwall together with passage, and by oil film, realizes clearance seal, and entering compression chamber with the pressurized gas that prevent the compressor inner chamber by communicating passage affects the normal operation of compressor.When compressor works, be subjected to the effect of elastic force, form sealing surface between the head end of the moving element 7 of thimble structure and the step surface of the second limited part, further guarantee sealing.For the purpose of machining, the step surface of the head end of moving element 7 and the second limited part is plane in the present embodiment, can be other forms of the cooperation between the head of moving element 7 and the second limited part, as being all that inclined-plane forms conical surface seal.
As mentioned above,, by in compressor inside, high pressure protector being set, can realize the effective protection to compressor, prevent from that the compressor internal pressure is excessive to cause compressor fault, damage.And present embodiment is minimum to the architecture advances of existing compressor, and technique realizes the simplest.
(the second mode of execution)
The difference of the second mode of execution and the first mode of execution is; the first dividing plate 9 is between second partition 6 and upper cylinder 5; the installation direction of moving element 7 is different from the first mode of execution with moving direction; in the present embodiment the head of moving element under; afterbody is upper; moving element 7 afterbodys stretch out from the upper-end surface of the first dividing plate 9, make the effective object of moving element 7 change upper roller 4 into by lower roller 10, and its principle that realizes the compressor high voltage protective is identical with the first embodiment.
(the 3rd mode of execution)
As shown in Figure 5, the difference of present embodiment and first, second mode of execution is, the first dividing plate 9 is non-conterminous with second partition 6, in the present embodiment, the first dividing plate 9 is between the second upper flange 3 and upper cylinder 5, and second partition 6 is between casing top half 5 and lower cylinder 11.
Be formed with the communicating passage of the compression chamber that is communicated with compression case intracoelomic cavity and upper cylinder 5 in upper flange 3 and the first dividing plate 9, high pressure protector is arranged in this communicating passage.The axis of this communicating passage is parallel with the axis of bent axle, and the projection of lower end perforate in horizontal plane of communicating passage is positioned at the compression chamber of upper cylinder 5.When the compressor housing internal pressure was excessive, moving element 7 went out to stretch out to enter upper cylinder 5 from the lower end perforate of communicating passage,, to hinder the motion of upper roller 4, reached the purpose of protection, and its principle that realizes the compressor high voltage protective is identical with the first embodiment.
In order not affect the normal exhaust of compressor, also be provided with the pressurized gas distribution channel of the exhaust port that is communicated with upper cylinder 5 and the exhaust passage of upper flange 3 on the first dividing plate 9, pressurized gas is through the first dividing plate 9, upper flange 3 and baffler 2 discharge compressors.
(the 4th mode of execution)
As shown in Figure 6, the difference of present embodiment and the 3rd mode of execution is, the first dividing plate 9 is between lower cylinder 11 and lower flange 12.Be formed with the communicating passage of the compression chamber that is communicated with compression case intracoelomic cavity and upper cylinder 5 in the first dividing plate 9 and lower flange 12, high pressure protector is arranged in this communicating passage.The axis of this communicating passage is parallel with the axis of bent axle, and the projection of upper end perforate in horizontal plane of communicating passage is positioned at the compression chamber of lower cylinder 11.When the compressor housing internal pressure was excessive, moving element 7 went out to stretch out to enter lower cylinder 11 from the upper end perforate of communicating passage,, to hinder the motion of lower roller 10, reached the purpose of protection, and its principle that realizes the compressor high voltage protective is identical with the first embodiment.
(the 5th mode of execution)
The utility model also provides a kind of progress control method of rolling rotor type compressor, and this rolling rotor type compressor is the rolling rotor type compressor that is built-in with described high pressure protector, and this progress control method is:
S01: detect in real time the torque of compressor electric motor;
S02: the torque that will detect and setting value are relatively;
S03: if checkout value, more than or equal to setting value, is controlled compressor shutdown.
The compressor that is built-in with high pressure protector of the present utility model; when compressor when special circumstances produce high pressure; the high pressure protector action; entering compression chamber sharply rises the moment of roller; make compressor enter stoppage protection; when internal pressure drops to normal range (NR); compressor can recover normal operation; can effectively prevent the compressor security incidents such as producing blast that under high pressure breaks down even; and can not produce and destroy compressor; can save maintenance cost, improve reliability and the Security of compressor operating.
This high pressure protector is simple in structure, and versatility is better, is easy to install and realizes, can be applicable to single cylinder or multicylinder compressor.For single cylinder compressor, because single cylinder compressor only has a cylinder, the first dividing plate that high pressure protector is installed is arranged between upper flange and cylinder or between cylinder and lower flange, and is namely identical with the 4th mode of execution with the 3rd above-mentioned mode of execution.For duplex cylinder compressor; preferably; with the first dividing plate 9 setting adjacent with second partition 6; this mode of execution improves minimum to existing compressor; cost is minimum, can be with the first dividing plate 9 with second partition 6 all as independent part, also can one machine shaping; the intermediate clapboard of existing duplex cylinder compressor is done thickening process, and communicating passage and high pressure protector are set therein.For having three multicylinder compressors more than cylinder, the first dividing plate that high pressure protector is installed can be arranged at sides adjacent with any one cylinder according to actual conditions.
Explanation is finally:
Although describe in this article and illustrate various creative aspect of the present utility model, concept and feature, implement in the exemplary embodiment them by combination, but can use aspect different embodiments various in many alternate embodiments, concept and feature, individually or in the mode of various combinations and sub-portfolio thereof.Unless be explicitly excluded in this article outside, the combination that all are such and sub-portfolio intention are all in scope of the present utility model.
In addition, although may describe in this article the various preferred implementations about various aspects of the present utility model, concept and feature, but these descriptions are not the complete or detailed inventories of all mode of executions of the utility model, these descriptions do not show that these features are essential, exclusiveness.The description of the application's illustrative methods or structure is not limited to comprise desired all features in all cases, unless clearly be set fourth as this situation.
Claims (10)
1. rolling rotor type compressor, comprise housing and be arranged on bent axle, roller, upper flange, lower flange and cylinder in described housing inner chamber, it is characterized in that: also comprise,
Be sheathed on described bent axle and with the first dividing plate of the adjacent setting of described cylinder; be provided with the communicating passage that is communicated with the compression chamber in described housing inner chamber and described cylinder in described the first dividing plate; be provided with high pressure protector in described communicating passage, described high pressure protector comprises elastic member and is used for hindering the moving element that described roller rotates.
2. compressor as claimed in claim 1, is characterized in that, described communicating passage is communicated with the low voltage side of described compression chamber.
3. compressor as claimed in claim 1, is characterized in that, the inwall gap sealing of described moving element and described communicating passage.
4. compressor as claimed in claim 1, is characterized in that, is provided with in described communicating passage be used to the first limited part that limits described moving element extreme displacement.
5. compressor as claimed in claim 1, is characterized in that, described moving element is thimble structure, and described elastic member is Compress Spring, and described Compress Spring is set on described thimble structure.
6. compressor as claimed in claim 1, is characterized in that, the size relationship of described moving element and described elastic member is:
P
d*S
1＝P
xS
2+K(L
1-L
2)+KL
4
P in formula
dFor high pressure protector operating pressure, S
1For moving element is communicated with side surface area, P with the compression case intracoelomic cavity
xFor pressure of inspiration(Pi), S
2For moving element is communicated with side surface area with the compressor compresses chamber, K is the elastic member stiffness coefficient, L
1For the former length of elastic member, L
2For the length after the elastic member installation, L
4For communicating passage is reserved safe length.
7. compressor as described in claim 1 to 6 any one, is characterized in that, described compressor is multicylinder compressor.
8. compressor as claimed in claim 7, it is characterized in that, described multicylinder compressor is duplex cylinder compressor, and described duplex cylinder compressor comprises upper cylinder, lower cylinder and second partition, and what described the first dividing plate was adjacent with second partition is arranged between upper cylinder and lower cylinder.
9. compressor as claimed in claim 8, is characterized in that, described the first dividing plate and the second partition structure that is formed in one.
10. compressor as claimed in claim 7, it is characterized in that, described multicylinder compressor is duplex cylinder compressor, described duplex cylinder compressor comprises upper flange, upper cylinder, lower cylinder and lower flange, and described the first dividing plate is arranged between described upper flange and described upper cylinder or between described lower cylinder and described lower flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202765526U CN203285689U (en) | 2013-05-20 | 2013-05-20 | Rolling rotor type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202765526U CN203285689U (en) | 2013-05-20 | 2013-05-20 | Rolling rotor type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285689U true CN203285689U (en) | 2013-11-13 |
Family
ID=49542055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202765526U Expired - Fee Related CN203285689U (en) | 2013-05-20 | 2013-05-20 | Rolling rotor type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285689U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121166A (en) * | 2014-07-04 | 2014-10-29 | 广东美芝精密制造有限公司 | Two-cylinder compressor and air conditioner with same |
| CN104842155A (en) * | 2014-02-18 | 2015-08-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Assembling method of multi-cylinder compressor |
| CN105114320A (en) * | 2015-08-18 | 2015-12-02 | 广东美芝制冷设备有限公司 | Rotary volume-variable enhanced vapor injection compressor |
| CN105464978A (en) * | 2015-12-18 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding piece control structure for variable capacity air cylinder, variable capacity air cylinder and variable capacity compressor |
-
2013
- 2013-05-20 CN CN2013202765526U patent/CN203285689U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104842155A (en) * | 2014-02-18 | 2015-08-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Assembling method of multi-cylinder compressor |
| CN104842155B (en) * | 2014-02-18 | 2017-06-20 | 珠海格力节能环保制冷技术研究中心有限公司 | The assembly method of multicylinder compressor |
| CN104121166A (en) * | 2014-07-04 | 2014-10-29 | 广东美芝精密制造有限公司 | Two-cylinder compressor and air conditioner with same |
| CN104121166B (en) * | 2014-07-04 | 2016-08-31 | 广东美芝精密制造有限公司 | Duplex cylinder compressor and the air-conditioning with it |
| CN105114320A (en) * | 2015-08-18 | 2015-12-02 | 广东美芝制冷设备有限公司 | Rotary volume-variable enhanced vapor injection compressor |
| CN105114320B (en) * | 2015-08-18 | 2018-07-24 | 广东美芝制冷设备有限公司 | Rotary positive-displacement air injection enthalpy-increasing compressor |
| CN105464978A (en) * | 2015-12-18 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Sliding piece control structure for variable capacity air cylinder, variable capacity air cylinder and variable capacity compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GELI ELECTRIC APPLIANCE CO., LTD., ZHUHAI Free format text: FORMER OWNER: ZHUHAI GREE ENERGY SAVING + REFRIGERATING TECHNOLOGY RESARCH CENTER CO., LTD. Effective date: 20141218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141218 Address after: 519070 Guangdong city of Zhuhai Province Qianshan No. six Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: Xiangzhou District 519070 of Guangdong city of Zhuhai Province Qianshan Patentee before: GREE GREEN REFRIGERATION TECHNOLOGY CENTER Co.,Ltd. OF ZHUHAI |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 |