CN101892973A - Resonance cavity structure of airtight compressor - Google Patents
Resonance cavity structure of airtight compressor Download PDFInfo
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- CN101892973A CN101892973A CN2009100689210A CN200910068921A CN101892973A CN 101892973 A CN101892973 A CN 101892973A CN 2009100689210 A CN2009100689210 A CN 2009100689210A CN 200910068921 A CN200910068921 A CN 200910068921A CN 101892973 A CN101892973 A CN 101892973A
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- resonant cavity
- cylinder
- valve block
- circular trough
- resonance cavity
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Abstract
The invention discloses a resonance cavity of structure of an airtight compressor, comprising an air cylinder, wherein a resonance cavity and a rectangle through groove are arranged on the walls of the air cylinder; a circular slot is arranged between one side of the resonance cavity and the inner wall of the air cylinder; the circular slot is communicated with the resonance cavity and an outlet opening; an arc-shaped valve block is arranged between the resonance cavity and the circular slot; and the shape of the arc-shaped valve block is matched with that of the inner circumferential surface of the resonance cavity. Because one side of the resonance cavity is provided with the circular slot and the arc-shape valve block is designed to be matched with the resonance cavity, the invention not only ensures noise reduction of the resonance cavity, but also can increase the discharge rate of the air cylinder, and improves the efficiency of the compressor.
Description
Technical field
The invention belongs to a kind of hermetic type compressor, be specifically related to an a kind of side and drive a circular trough and design an arc valve block and be mated, the discharge capacity of cylinder is increased, can reduce the resonant cavity structure of the hermetic type compressor of noise again at resonant cavity.
Background technique
As shown in Figure 1, 2, the hermetic type compressor of prior art comprises housing 1, in the upper inside of housing 1 motor 20 is installed, at the downside of motor 20 compressor assembly 30 that is equipped with separated by a distance.Housing 1 is made up of circular cylinder body 11, loam cake 12 and the lower cover 13 etc. of hollow.Motor 20 is pressed on the inner peripheral surface that is fixed on cylindrical shell 11, and it is made up of stator 21, rotor 22 and rotary crankshaft 23 of being pressed into the center that is fixed on rotor 22 and transmitting rotating force etc.
On the wall of cylinder 31, be formed with resonant cavity 37 and rectangular groove 38, on cylinder 31 walls, also be provided with and be positioned at that groove 38, a side contact with the excircle upper thread of rolling piston 35 and be the plate washer (not shown) of suction area and compressing area the compression volume C zoning that the outer peripheral surface of the inner peripheral surface of cylinder 31 and rolling piston 35 forms, the suction port (not shown) that also is communicated with the suction pipe in the suction area in the cylinder 31, and the exhaust port 39 that is used to discharge compressed media in the compressing area.
In addition, be provided with exhaust port (not shown) in the upper bearing 32, its upside binding is fixed with baffler 34, is used to reduce the noise that is produced by pressure difference from the compressed media gas of exhaust port discharge.For making dielectric gas be discharged to seal casinghousing 1 outside by baffler 34, on loam cake 12, be provided with outlet pipe 51, on loam cake 12, also be provided with the power-line terminal 52 that connects power line, be provided with sucking pipe 50 in the bottom of seal casinghousing 1.
In the hermetic type compressor of prior art, though the resonant cavity 37 on the cylinder 31 can reduce the noise of compressor, but increased " dead volume " of cylinder, reduced cylinder suction tolerance, reduced the efficient of compressor.If resonant cavity is not set on cylinder 31, then the noise that compressor produced will increase.
Summary of the invention
The present invention proposes for the shortcoming that overcomes prior art, its objective is to provide an a kind of side to drive a circular trough and design an arc valve block to be mated, the discharge capacity of cylinder is increased, can reduce the resonant cavity structure of the hermetic type compressor of noise again at resonant cavity.
Technological scheme of the present invention is: a kind of resonant cavity structure of hermetic type compressor, described compressor comprises housing, housing is made up of cylindrical shell, loam cake and lower cover etc., motor and compressor assembly are installed in housing, motor is made up of stator, rotor and bent axle etc., and compressor assembly is made up of cylinder, upper bearing and lower bearing etc.
Be formed with resonant cavity and rectangular groove on the wall of cylinder, drive a circular trough between the inwall of side of resonant cavity and cylinder, circular trough is communicated with resonant cavity and exhaust port, is provided with an arc valve block between resonant cavity and circular trough.
The arc valve plate shape matches with the inner peripheral surface of resonant cavity.
The height of arc valve block will be higher than the height of circular trough notch.
The present invention is mated owing to driving a circular trough and design an arc valve block in a side of resonant cavity, has not only guaranteed the sound deadening of resonant cavity, and the discharge capacity of cylinder is increased, and has improved the efficient of compressor.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of the hermetic type compressor of prior art;
Fig. 2 is the stereogram of the cylinder with resonant cavity of prior art;
Fig. 3 is the longitudinal sectional drawing with hermetic type compressor of resonant cavity structure of the present invention;
Fig. 4 is the stereogram with cylinder of resonant cavity structure of the present invention;
Fig. 5 is the enlarged view of A part among Fig. 4;
Fig. 6 is the schematic representation with resonant cavity expiratory phase of the present invention;
Fig. 7 is the schematic representation with resonant cavity exhaust phase of the present invention.
Wherein: 1 housing, 11 cylindrical shells
12 loam cakes, 13 lower covers
20 motors, 21 stators
22 rotors, 23 bent axles
23a eccentric part 30 compressor assemblies
31 cylinders, 32 upper bearing (metal)s
33 lower bearings, 34 bafflers
35 pistons, 37 resonant cavitys
38 grooves, 39 relief openings
40 cylinders, 41 resonant cavitys
42 grooves, 43 relief openings
44 circular troughs, 45 arc valve blocks
50 sucking pipes, 51 outlet pipes
52 power-line terminals
Embodiment
Below, be elaborated with reference to the resonant cavity structure of drawings and Examples to hermetic type compressor of the present invention:
The same label of employing that component among the present invention are same as the prior art.
Shown in Fig. 3～5, the resonant cavity structure of hermetic type compressor of the present invention, described hermetic type compressor comprises housing 1, in the upper inside of housing 1 motor 20 is installed, at the downside of motor 20 compressor assembly 30 that is equipped with separated by a distance.
For making dielectric gas be discharged to seal casinghousing 1 outside by baffler 34, on loam cake 12, be provided with outlet pipe 51, on loam cake 12, also be provided with the power-line terminal 52 that connects power line, be provided with suction pipe 50 in the bottom of seal casinghousing 1.
One side of the resonant cavity 41 on the wall of cylinder 40 forms rectangular groove 42, on cylinder 40 walls, also be provided with and be positioned at that groove 42, a side contact with the excircle upper thread of rolling piston 35 and be the plate washer (not shown) of suction area and compressing area the compression volume C zoning that the outer peripheral surface of the inner peripheral surface of cylinder 40 and rolling piston 35 forms, the suction port (not shown) that also is communicated with the suction pipe in the suction area in the cylinder 40, and the exhaust port 43 that is used to discharge compressed media in the compressing area.
Drive a circular trough 44 between the inwall of side of the resonant cavity on the cylinder 40 41 and cylinder 40, circular trough 44 is communicated with resonant cavity 41 and exhaust port 43, and the diameter of circular trough 44 is littler than the diameter of resonant cavity 41.Between resonant cavity 41 and circular trough 44, be provided with an arc valve block 45, arc valve block 45 is to have certain thickness tinsel or engineering plastics sheet, the external diameter of arc valve block 45 is consistent or smaller with the internal diameter of resonant cavity 41, so that the external diameter of arc valve block 45 and the inner peripheral surface of resonant cavity 41 are cooperatively interacted, the height of arc valve block 45 will be higher than the height of circular trough 44 notches.Promptly.When the external diameter of arc valve block 45 matched with the inner peripheral surface of resonant cavity 41, the height of arc valve block 45 will exceed the height on plane of the cylinder 40 at resonant cavity 41 and circular trough 44 places.Like this, when cylinder 40 makes arc valve block 45 compress circular trough 44 notches during in exhaust, so that circular trough 44 notches are sealed.
The working principle and the process of resonant cavity structure of the present invention are:
As shown in Figure 6, when cylinder 40 was air-breathing, the gas pressure in the cylinder was greater than the gas pressure in the resonant cavity 41, gas opens it by circular trough 44 promotion arc valve blocks 45 and breaks away from the resonant cavity inwall, form space B, this moment, gas flowed into resonant cavity in cylinder, reached the purpose of noise reduction.
As shown in Figure 7, when cylinder 40 exhausts, the gas pressure in the cylinder is less than the gas pressure in the resonant cavity 41, and the gas in the cylinder flows out and promotes arc valve block 45 by circular trough 44 and makes it compress circular trough 44 notches, so that circular trough 44 notches are sealed.At this moment, the pressurized gas in the resonant cavity just can not be discharged into the air aspiration cavity of cylinder, have so just reduced the pressure of cylinder, have increased the gettering quantity of cylinder.
Figure hollow core arrow is represented the gas flow direction in cylinder and the resonant cavity.
The present invention is mated owing to driving a circular trough and design an arc valve block in a side of resonant cavity, has not only guaranteed the sound deadening of resonant cavity, and the discharge capacity of cylinder is increased, and has improved the efficient of compressor.
Claims (5)
1. the resonant cavity structure of a hermetic type compressor, described compressor comprises housing (1), housing (1) is by cylindrical shell (11), loam cake (12) and lower cover compositions such as (13), motor (20) and compressor assembly (30) are installed in housing (1), motor (20) is by stator (21), rotor (22) and bent axle compositions such as (23), compressor assembly (30) is by cylinder (40), upper bearing (32) and lower bearing compositions such as (33), it is characterized in that: on the wall of cylinder (40), be formed with resonant cavity (41) and rectangular groove (42), between the inwall of side of resonant cavity (41) and cylinder (40), drive a circular trough (44), circular trough (44) is communicated with resonant cavity (41) and exhaust port (43), is provided with an arc valve block (45) between resonant cavity (41) and circular trough (44).
2. the resonant cavity structure of hermetic type compressor according to claim 1, it is characterized in that: the diameter of circular trough (44) is littler than the diameter of resonant cavity (41).
3. the resonant cavity structure of hermetic type compressor according to claim 1, it is characterized in that: the external diameter of arc valve block (45) is consistent or smaller with the internal diameter of resonant cavity (41), so that the external diameter of arc valve block (45) and the inner peripheral surface of resonant cavity (41) are worked in coordination.
4. the resonant cavity structure of hermetic type compressor according to claim 1, it is characterized in that: the height of arc valve block (45) will be higher than the height of circular trough (44) notch.
5. the resonant cavity structure of hermetic type compressor according to claim 1, it is characterized in that: described arc valve block (45) is to have certain thickness tinsel or engineering plastics sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100689210A CN101892973A (en) | 2009-05-19 | 2009-05-19 | Resonance cavity structure of airtight compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100689210A CN101892973A (en) | 2009-05-19 | 2009-05-19 | Resonance cavity structure of airtight compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101892973A true CN101892973A (en) | 2010-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100689210A Pending CN101892973A (en) | 2009-05-19 | 2009-05-19 | Resonance cavity structure of airtight compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101892973A (en) |
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2009
- 2009-05-19 CN CN2009100689210A patent/CN101892973A/en active Pending
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101124 |