CN102720673B - Self-regulation mechanism for stationary plate of commercial scroll compressor - Google Patents
Self-regulation mechanism for stationary plate of commercial scroll compressor Download PDFInfo
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- CN102720673B CN102720673B CN201210226384.XA CN201210226384A CN102720673B CN 102720673 B CN102720673 B CN 102720673B CN 201210226384 A CN201210226384 A CN 201210226384A CN 102720673 B CN102720673 B CN 102720673B
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Abstract
A self-regulation mechanism for a stationary plate of a commercial scroll compressor comprises an upper cover baffle (3) and a stationary plate (7), wherein the stationary plate (7) is provided with a central boss (29), and an annular outer boss (30) is arranged on the outer side of the central boss. The self-regulation mechanism is characterized in that an annular convex shoulder (31) is arranged on the upper cover baffle at the position corresponding to the annular outer boss; the upper bottom surface of the stationary plate, the outer surface of a socket (28), an inner surface of the annular outer boss (30), the inner surface of the annular convex shoulder (31) and the lower surface of the upper baffle form a middle cavity (31); and the middle cavity is communicated with an exhaust pressure cavity formed between the stationary and the movable plates through a middle pressure gas hole (33) in the stationary plate. The self-regulation mechanism has a simple structure, fully utilizes simple external structure changes of the stationary plate and the upper cover baffle to realize pressure balance, has the advantages of convenience for manufacture and low cost, and only requires normal seal rings for mounting.
Description
Technical field
The present invention relates to a kind of commercial scroll compressor, especially one according to exhaust pressure automatic regulation moving quiet dish jointing end face gap, can guarantee the commercial scroll compressor of exhaust pressure, specifically a kind of self-regulation mechanism for stationary plate of commercial scroll compressor.
Background technique
As everyone knows, cause unbalance stress inside and outside quiet dish and cracked in order to the pressure of compression chamber start up period of preventing scroll compressor or under abnormal conditions is excessive, people all consider earth pressure release measure when designing the Moving plate of scroll compressor and quiet dish structure.The most frequently used measure offers intermediate pressure at Jing Panshang to get pore, pressure in hyperbaric chamber is entered in pressure-releasing chamber, under normal circumstances, rely on the laminating that the pressure in pressure-releasing chamber makes quiet dish and Moving plate reach desirable, the float of pressure-releasing chamber is made to open pressure release under abnormal conditions, this just requires that between quiet dish and upper cover baffle plate, install float carrys out pressure release, causes complex structure, installs inconvenience.
Summary of the invention
The object of the invention is for the quiet dish of existing scroll compressor needs to install that to let out assembling device bad to the quiet adjustment debit preventing abnormal pressure from causing, thus cause complex structure, manufacture cost strengthens, the problem of inconvenience is installed, designs a kind of pressure-releasing chamber that utilizes to realize quiet dish stress balance thus the self-regulation mechanism for stationary plate of commercial scroll compressor that under preventing abnormal pressure, quiet dish is broken.
Technological scheme of the present invention is:
A kind of self-regulation mechanism for stationary plate of commercial scroll compressor, comprise upper cover baffle plate 3 and quiet dish 7, described quiet dish 7 is provided with the central boss 29 in the socket 28 inserted on upper cover baffle plate 3, annular outer platform 30 is provided with in the outside of central boss 29, it is characterized in that described upper cover baffle plate 3 is provided with annular convex shoulder 31 with annular outer platform 30 relative position, the upper bottom surface of described quiet dish 7, the outer surface of socket 28, the internal surface of annular outer platform 30, the internal surface of annular convex shoulder 31 and the lower surface of upper cover baffle plate form an intermediate cavity 32, described intermediate cavity 32 is got by the intermediate pressure on quiet dish the discharge plenum formed between pore 33 with sound dish and is connected, the high-pressure seal ring 4 preventing pressurized gas from entering intermediate cavity 32 is installed between described socket 28 and central boss 29, annular outer platform 30 with the junction plane of annular convex shoulder 31 are provided with the low pressure seal circle 5 preventing the pressure in intermediate cavity 32 from leaking to low-pressure cavity.
Described annular outer platform 30 is provided with the installation groove 37 installing annular resilient pad 6, and cyclic spring pad 6 is arranged on to be installed in groove 37, and the low pressure seal circle 5 that its upper surface and partial insertion are installed in groove 37 offsets.
Beneficial effect of the present invention:
Present invention eliminates traditional pressure release floating valve, balance the pressure reduction inside and outside compressor in time by the pressure-releasing chamber set up between upper cover baffle plate and quiet dish, guarantee that quiet dish stress balance can not be broken because of high pressure.
The utility model structure is simple, and all utilize the change of the simple form structure of quiet dish and upper cover baffle plate to realize pressing equilibrium of forces, have easily manufactured, cost is low, only needs normal seal ring to install during installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the overall structure schematic diagram of the compressor having installed quiet dish self-balancing mechanism of the present invention.
In Fig. 2: 1, upper cover 2, outlet pipe 3, upper cover baffle plate 7, quiet dish 8, Moving plate 9, cross slip-ring 10, master bracket lid 11, master bracket 12, main shaft 13, main equilibrium block 14, rotor 15, stator 16, stator support 17, oil baffle disc 18, assistant support bearing 19, assistant support plate 20, lower cover.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in Figure 1.
A kind of self-regulation mechanism for stationary plate of commercial scroll compressor, comprise upper cover baffle plate 3 and quiet dish 7, described quiet dish 7 is provided with the central boss 29 in the socket 28 inserted on upper cover baffle plate 3, annular outer platform 30 is provided with in the outside of central boss 29, described upper cover baffle plate 3 is provided with annular convex shoulder 31 with annular outer platform 30 relative position, the upper bottom surface of described quiet dish 7, the outer surface of socket 28, the internal surface of annular outer platform 30, the internal surface of annular convex shoulder 31 and the lower surface of upper cover baffle plate form an intermediate cavity 32, described intermediate cavity 32 is got by the intermediate pressure on quiet dish the discharge plenum formed between pore 33 with sound dish and is connected, the high-pressure seal ring 4 preventing pressurized gas from entering intermediate cavity 32 is installed between described socket 28 and central boss 29, annular outer platform 30 with the junction plane of annular convex shoulder 31 are provided with the low pressure seal circle 5 preventing the pressure in intermediate cavity 32 from leaking to low-pressure cavity.Described annular outer platform 30 is provided with the installation groove 37 installing annular resilient pad 6, and cyclic spring pad 6 is arranged on to be installed in groove 37, and the low pressure seal circle 5 that its upper surface and partial insertion are installed in groove 37 offsets.
Working procedure of the present invention is as follows;
Under normal circumstances, when compressor does not start, the elastic force that cyclic spring pad 6 produces makes quiet dish move down and fit with the profile of Moving plate, make between sound dish, to keep suitable startup gap, during normal work, the pressure that pressure chamber between sound dish produces is got pore 33 by intermediate pressure and is entered in intermediate cavity 32, intermediate cavity 32 produces a downward thrust and makes with the pressure between overcoming because of sound dish the strength that quiet dish moves up, quiet dish reaches balance by downward power and power upwards, enables compressor normally complete compression work.Enter between sound dish when there being liquid medium or outlet valve occurs the pressure anomaly in the abnormal hyperbaric chamber caused between sound dish time; quiet dish is greater than downward power by power upwards; Moving plate is separated with quiet dish; lose compression function; thus reaching the object of pressure release, protection Moving plate and quiet dish scrollwork are not damaged.Substantially increasing Security, simultaneously due to without the need to installing pressure relief component, making overall structure simple, making and installation also greatly for convenience.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (1)
1. a self-regulation mechanism for stationary plate of commercial scroll compressor, comprise upper cover baffle plate (3) and quiet dish (7), described quiet dish (7) is provided with the central boss (29) in the socket (28) inserted on upper cover baffle plate (3), annular outer platform (30) is provided with in the outside of central boss (29), it is characterized in that described upper cover baffle plate (3) is gone up and annular outer platform (30) relative position is provided with annular convex shoulder (31), the upper bottom surface of described quiet dish (7), the outer surface of socket (28), the internal surface of annular outer platform (30), the internal surface of annular convex shoulder (31) and the lower surface of upper cover baffle plate form an intermediate cavity (32), described intermediate cavity (32) is got pore (33) by the intermediate pressure on quiet dish and is connected with the discharge plenum formed between sound dish, the high-pressure seal ring (4) preventing pressurized gas from entering intermediate cavity (32) is installed between described socket (28) and central boss (29), the junction plane of annular outer platform (30) with annular convex shoulder (31) is provided with the low pressure seal circle (5) preventing the pressure in intermediate cavity (32) from leaking to low-pressure cavity, described annular outer platform (30) is provided with the installation groove (37) installing annular resilient pad (6), cyclic spring pad (6) is arranged on to be installed in groove (37), and the low pressure seal circle (5) that its upper surface and partial insertion are installed in groove (37) offsets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210226384.XA CN102720673B (en) | 2012-07-03 | 2012-07-03 | Self-regulation mechanism for stationary plate of commercial scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210226384.XA CN102720673B (en) | 2012-07-03 | 2012-07-03 | Self-regulation mechanism for stationary plate of commercial scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720673A CN102720673A (en) | 2012-10-10 |
| CN102720673B true CN102720673B (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210226384.XA Active CN102720673B (en) | 2012-07-03 | 2012-07-03 | Self-regulation mechanism for stationary plate of commercial scroll compressor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129798A (en) * | 1991-02-12 | 1992-07-14 | American Standard Inc. | Co-rotational scroll apparatus with improved scroll member biasing |
| US5257920A (en) * | 1991-04-25 | 1993-11-02 | Mitsubishi Jukogyo Kabushiki Kaisha | Scroll type compressor having a centered opening to a high pressure chamber |
| CN1138669A (en) * | 1995-06-20 | 1996-12-25 | 株式会社日立制作所 | Eddy compressor |
| CN201321979Y (en) * | 2008-11-21 | 2009-10-07 | 珠海格力电器股份有限公司 | Scroll compressor with floating seal and high-pressure unloading functions |
| CN202690453U (en) * | 2012-07-03 | 2013-01-23 | 南京奥特佳冷机有限公司 | Static disc self-regulation mechanism of commercial scroll compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07259756A (en) * | 1994-03-23 | 1995-10-09 | Hitachi Ltd | Shaft-through scroll compressor |
| JP3434573B2 (en) * | 1994-06-01 | 2003-08-11 | 株式会社日立製作所 | Hermetic scroll fluid device |
-
2012
- 2012-07-03 CN CN201210226384.XA patent/CN102720673B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5129798A (en) * | 1991-02-12 | 1992-07-14 | American Standard Inc. | Co-rotational scroll apparatus with improved scroll member biasing |
| US5257920A (en) * | 1991-04-25 | 1993-11-02 | Mitsubishi Jukogyo Kabushiki Kaisha | Scroll type compressor having a centered opening to a high pressure chamber |
| CN1138669A (en) * | 1995-06-20 | 1996-12-25 | 株式会社日立制作所 | Eddy compressor |
| CN201321979Y (en) * | 2008-11-21 | 2009-10-07 | 珠海格力电器股份有限公司 | Scroll compressor with floating seal and high-pressure unloading functions |
| CN202690453U (en) * | 2012-07-03 | 2013-01-23 | 南京奥特佳冷机有限公司 | Static disc self-regulation mechanism of commercial scroll compressor |
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| Publication number | Publication date |
|---|---|
| CN102720673A (en) | 2012-10-10 |
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| C10 | Entry into substantive examination | ||
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Owner name: NANJING AOTECAR NEW ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER NAME: NANJING AOTECAR REFRIGERATING CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 210022 Daming Road, Qinhuai District, Jiangsu, Nanjing, China Patentee after: Nanjing Aotecar New Energy Technology Co., Ltd. Address before: 210022 Daming Road, Qinhuai District, Jiangsu, Nanjing, China Patentee before: Nanjing Aotecar Refrigerating Co., Ltd. |