CN1955483A - Compressor back plat of ceramic material - Google Patents
Compressor back plat of ceramic material Download PDFInfo
- Publication number
- CN1955483A CN1955483A CN 200510015714 CN200510015714A CN1955483A CN 1955483 A CN1955483 A CN 1955483A CN 200510015714 CN200510015714 CN 200510015714 CN 200510015714 A CN200510015714 A CN 200510015714A CN 1955483 A CN1955483 A CN 1955483A
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- rolling rotor
- baffle plate
- cylinder
- compressor
- ceramic material
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A ceramic baffle plate with high-temp resistance, hardness and antiwear performance is a square plate able to move in cylinder's slot and in contact with the external circumferential surface of rolling rotor under the action of spring to form a dynamic sealing is made of boron carbide ceramics BC-2.
Description
Technical field
The present invention relates to compressor, particularly relate to the baffle plate that is provided with in the rolling rotor type compressor cylinder.
Background technique
In general, compressor utilizes its parts that move under driven by motor (rolling rotor or reciprocating piston etc.) to change mechanical energy into the pressure energy, realizes the compression to the compresser cylinder inner refrigerant, and the refrigerant compressed discharge is entered refrigeration cycle.Compressor is the important composition parts that air conditioner, refrigerator etc. utilize the household electric appliance of cooling cycle system work.
Compressor commonly used mainly contains Reciprocting piston compressor, rotary compressor etc.Rolling rotor type compressor is modal rotary compressor, has characteristics such as volume is little, simple in structure, running is steady, noise is low, especially can adapt to variable parameter operation, so it is widely used on the air conditioner.
Fig. 1 is the structural representation of rolling rotor type compressor.
As shown in Figure 1, compressor is a vertical structure, is made up of the pump housing and the motor that are arranged in the cylindrical shell 1.Cylindrical shell 1 is by loam cake 2 and lower cover 10 sealings.In compressor housing, the pump housing is arranged on the bottom, the top that motor is provided with.
Motor is made up of stator 4 and rotor 5, and stator 4 and rotor 5 are made of the iron core that the folded collection of silicon steel core sheet forms respectively.Rotor 5 is cylindric, directly is pressed into the upper end of bent axle 6 and inserts in the cylinder cavity of stator iron core, has air gap to be separated by between rotor 5 and the stator 4.Embed the winding of enameled cable coiled on the stator 4, staor winding outside source current by the time produce magnetic field.When rotor 5 has electric current to pass through,, produce electromagnetic torque and in stator 4, rotate 6 rotations of rotor 5 drive bent axles with the magnetic field interaction of stator 4.Bent axle 6 inserts in the cylinder 8 of the pump housing, and the off-centre of bent axle 5 lower ends turns is overlapping the rolling rotor 12 that is arranged in the cylinder cavity on 11.
The pump housing comprises main bearing 7, lower bearing 9 and cylinder 8.Main bearing 7 and lower bearing 9 are made to be formed with the cylinder cavity in the cylinder 8 by the both sides up and down that are bolted to cylinder 8.Rolling rotor 12 is set in the cylinder cavity, and rolling rotor 12 is enclosed within the off-centre of inserting bent axle 6 lower ends in the cylinder 8 and turns on 11.The rotation of bent axle 6 drives rolling rotor 12 and rolls along cylinder wall surface in cylinder 8, realizes entering the compression and the exhaust process of cylinder cavity inner refrigerant.
Fig. 2 is the cross-sectional view of the rolling rotor type compressor pump housing.
As shown in Figure 2, cylinder wall one side has the groove 14 of a break-through, and baffle plate 13 is housed in the cylinder groove 14.Baffle plate 13 is a square plate, can move in cylinder groove 14.One side of baffle plate 13 props up rolling rotor 12 outer peripheral surfaces, between another side of baffle plate 13 and the cylinder groove end wall spring 15 is set, and spring makes baffle plate 13 closely contact with rolling rotor 12 excircle walls.Along with rolling rotor 12 rolling along cylinder wall surface under turning crankshaft 5 drives, baffle plate 13 is engaged in the cylinder with rolling rotor 12 and slides, under the effect of spring force, closely contact and form motive sealing with rolling rotor 12 excircle walls, crescent shape cylinder chamber body space between rolling rotor 12 and the cylinder wall is divided into air-inlet cavity and compression chamber, at rolling rotor 12 in the process that cylinder axis rotates a circle, air-inlet cavity sucks low-temperature low-pressure refrigerant gas and finishes intake process, and compression chamber is compressed into high-temperature high-pressure refrigerant gas with it and finishes compression process.Baffle plate 13 has important function in the performance that ensures compressor normal operation and thermal energy conversion efficiency.
Because baffle plate 13 closely contacts under the motive sealing state and friction fast mutually with the rolling rotor 12 excircle walls of high speed rotating, and the both sides temperature and pressure of baffle plate air-inlet cavity that the cylinder chamber body space is divided into and compression chamber is different, so, compressor baffle must have high hardness and high wear resistance, also will have good adiabaticity.
But, the compressor baffle of prior art adopts high speed steel to make, and the hardness of high speed steel and wear resistance can't satisfy the high standard requirement of baffle plate, causes the wearing and tearing aggravation and abnormal sound is arranged, and the thermal insulation of high speed steel is limited, and this all affects the further raising of compressor performance and efficient.
Summary of the invention
At the existing problem of high speed steel material compressor baffle of above-mentioned prior art, compressor baffle involved in the present invention adopts the stupalith manufacturing, increases hardness, wear resistance and the thermal insulation of baffle plate, to promote the performance of compressor.
Compressor baffle involved in the present invention adopts boron carbide BC-2 stupalith to make.Boron carbide is the high-hardness inorganic nonmetallic material that are only second to diamond and cubic boron nitride, has characteristics such as high temperature resistant, high hardness, high wear resistance, therefore, is widely used in during high hardness wear-resisting spare makes as wear-resisting, shock resistance hard material.And the BC-2 goods have the characteristics of intensity height, good toughness concurrently, are better than conventional boron carbide ceramics goods.
Table 1 is that boron carbide BC-2 and boron carbide BC-1 ceramic material property compare.
Table 1
| Performance | Unit | Pressureless sintering boron carbide ceramics BC-1 | High tenacity boron carbide ceramics BC-2 |
| Density | g/cm 3 | 2.45-2.50 | 2.50-2.52 |
| Resistance to flexure | MPa | 350-370 | 420-450 |
| The pressure degree | GPa | 4.1 | 4.2 |
| Young's modulus | GPa | 410 | 410 |
| Fracture toughness | MPam 1/2 | 3.5 | 5.2 |
| Hardness | HV | 2700 | 3000 |
| Specific heat | x10 2J/kgK | 6.7 | 6.9 |
| Thermal conductivity | W/mK | 29 | 51 |
| Thermal expansion coefficient | x10 6 | 4.5 | 4.3 |
| Poisson's ratio | 0.16 | 0.16 | |
| Dimension boolean modulus | 4.5 | 9-12 | |
| Break-up point | tn | 2.1-2.3 | 6.5-8.0 |
Ceramic material compressor baffle involved in the present invention high speed steel material baffle plate compared to prior art has higher intensity and wear resistance.Following baffle plate hardness test can illustrate beneficial effect of the present invention.
The baffle plate hardness test
Test objective: check ceramic baffle plate and high speed steel baffle plate nonhomogeneous hardness
Test method: get the boron carbide BC-2 pottery baffle plate and the high speed steel HR61-65 baffle plate of 5 samples respectively, utilize the Vickers hardness detector that each sample is carried out plane three point hardnesses and measure, try to achieve this baffle plate hardness mean value.At last, every kind of baffle plate hardness is averaged.
Give the load of 100kgf, Vickers hardness detector diamond four directions pyramid pressure head (conical surface angle is 136 degree) is pressed into baffle surface, measure the impression catercorner length then, calculate this surface hardness according to formula.
Formula: HV=1.8544P/ (D*D)
HV: Vickers hardness
P: load
D: impression catercorner length
Test result: see Table 2.
Table 2
| The pottery baffle plate | The high speed steel baffle plate | ||||
| No. 1 | 2992 | 2996 | No. 6 | 723 | 724 |
| 2994 | 730 | ||||
| 3002 | 721 | ||||
| No. 2 | 2894 | 2898 | No. 7 | 690 | 746 |
| 2902 | 759 | ||||
| 2900 | 789 | ||||
| No. 3 | 3001 | 3001 | No. 8 | 723 | 738 |
| 3004 | 751 | ||||
| 2998 | 741 | ||||
| No. 4 | 2896 | 2893 | No. 9 | 751 | 742 |
| 2893 | 742 | ||||
| 2891 | 733 | ||||
| No. 5 | 2992 | 2992 | No. 10 | 710 | 718 |
| 2991 | 723 | ||||
| 2995 | 722 | ||||
| On average | 2956 | On average | 733 | ||
As shown in table 2, the hardness of 5 samples (No. 1-No. 5) of the present invention's pottery baffle plate: No. 1 2996, No. 2 2898, No. 3 3001, No. 4 2893, No. 5 2992, average hardness is 2956; The hardness of existing 5 samples of high speed steel baffle plate (No. 6-No. 10): No. 6 724, No. 7 746, No. 8 738, No. 9 742, No. 10 718, average hardness is 733.
Above-mentioned test result draws, and boron carbide BC-2 pottery baffle plate hardness mean value is 2956, high speed steel HR61-65 baffle plate hardness mean value 733.Ceramic material compressor baffle involved in the present invention high speed steel material baffle plate compared to prior art has higher hardness and wear resistance, reduces wearing and tearing, avoids abnormal sound.And the baffle plate of stupalith not only has the high advantage of hardness, also has bad thermal conduction characteristic and solenoid isolation characteristic, so the compressor performance and the efficient of configuration stupalith baffle plate are further enhanced.
Simultaneously, the baffle plate of ceramic material involved in the present invention and the rolling rotor method of being used comprise that the rolling rotor with ceramic material is used.The baffle plate of ceramic material and the rolling rotor of ceramic material are used performance and the working efficiency of wearing and tearing, increasing wear resistance and improve compressor reducing significantly.
Description of drawings
Fig. 1 is the structural representation of rolling rotor type compressor.
Fig. 2 is the cross-sectional view of the rolling rotor type compressor pump housing.
Fig. 3 is rolling rotor type compressor cylinder baffle structure figure.
The drawing description of symbols:
1, housing 2, loam cake
3, outlet pipe 4, motor stator
5, rotor 6, bent axle
7, main bearing 8, cylinder
9, lower bearing 10, lower cover
11, off-centre turn 12, rolling rotor
13, baffle plate 14, cylinder groove
15, spring 16, sucking pipe
17, outlet valve
Embodiment
In conjunction with the accompanying drawings compressor baffle involved in the present invention is further described.
Fig. 2 is the cross-sectional view of the rolling rotor type compressor pump housing, and Fig. 3 is rolling rotor type compressor cylinder baffle structure figure.
As shown in Figures 2 and 3, compressor baffle 13 is a square plate, is arranged in the cylinder groove 14 of cylinder wall one side break-through, and baffle plate 13 can move in cylinder groove 14.One side of baffle plate 13 props up rolling rotor 12 outer peripheral surfaces, between another side of baffle plate 13 and the cylinder groove end wall spring 15 is set, and spring makes baffle plate 13 closely contact with rolling rotor 12 excircle walls.Along with rolling rotor 12 rolling along cylinder wall surface under turning crankshaft 5 drives, baffle plate 13 is engaged in the cylinder with rolling rotor 12 and slides, under the effect of spring force, closely contact and form motive sealing with rolling rotor 12 excircle walls, crescent shape cylinder chamber body space between rolling rotor 12 and the cylinder wall is divided into air-inlet cavity and compression chamber, at rolling rotor 12 in the process that cylinder axis rotates a circle, air-inlet cavity sucks low-temperature low-pressure refrigerant gas and finishes intake process, and compression chamber is compressed into high-temperature high-pressure refrigerant gas with it and finishes compression process.
Claims (4)
1, a kind of compressor baffle of ceramic material, be square plate, be arranged in the cylinder groove of cylinder wall one side, can in cylinder groove, move, under the effect of spring force, closely contact and form motive sealing with rolling rotor excircle wall, cylinder chamber body space between rolling rotor and the cylinder wall is divided into air-inlet cavity and compression chamber, it is characterized in that, the baffle plate material is a stupalith.
2, the compressor baffle of ceramic material according to claim 1 is characterized in that, baffle plate adopts boron carbide BC-2 stupalith to make.
3, the method that is used of a kind of compressor baffle of ceramic material according to claim 1 and rolling rotor is characterized in that the rolling rotor of baffle plate and ceramic material is used.
4, the method that is used of the compressor baffle of ceramic material according to claim 3 and rolling rotor is characterized in that, rolling rotor adopts boron carbide BC-2 stupalith to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510015714 CN1955483A (en) | 2005-10-28 | 2005-10-28 | Compressor back plat of ceramic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510015714 CN1955483A (en) | 2005-10-28 | 2005-10-28 | Compressor back plat of ceramic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1955483A true CN1955483A (en) | 2007-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510015714 Pending CN1955483A (en) | 2005-10-28 | 2005-10-28 | Compressor back plat of ceramic material |
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|---|---|
| CN (1) | CN1955483A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032331A (en) * | 2013-01-16 | 2013-04-10 | 东莞市金瑞五金制品有限公司 | Compressor and application thereof |
| CN103147985A (en) * | 2013-03-26 | 2013-06-12 | 东莞市金瑞五金制品有限公司 | Rotary compressor |
-
2005
- 2005-10-28 CN CN 200510015714 patent/CN1955483A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032331A (en) * | 2013-01-16 | 2013-04-10 | 东莞市金瑞五金制品有限公司 | Compressor and application thereof |
| CN103032331B (en) * | 2013-01-16 | 2016-06-29 | 东莞市金瑞五金股份有限公司 | A kind of compressor and application thereof |
| CN103147985A (en) * | 2013-03-26 | 2013-06-12 | 东莞市金瑞五金制品有限公司 | Rotary compressor |
| CN103147985B (en) * | 2013-03-26 | 2015-09-09 | 东莞市金瑞五金制品有限公司 | A kind of rotor-type compressor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070502 |