CN208281176U - A kind of compressor - Google Patents
A kind of compressor Download PDFInfo
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- CN208281176U CN208281176U CN201820883698.XU CN201820883698U CN208281176U CN 208281176 U CN208281176 U CN 208281176U CN 201820883698 U CN201820883698 U CN 201820883698U CN 208281176 U CN208281176 U CN 208281176U
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Abstract
The utility model relates to a kind of compressors, make the piston being eccentrically rotated, the crankshaft for driving piston operation, support crankshaft including cylinder, in cylinder and form the supporting element of accommodating space with cylinder and contact with piston outer wall and be divided into accommodating space the sliding block of suction chamber and compression chamber, is equipped with chamfering in the inner periphery and the outer periphery of piston；Supporting element is equipped with tonifying Qi hole, and tonifying Qi hole is round hole；The center in tonifying Qi hole meets to the distance between the center of cylinder and the radius in tonifying Qi hole: The utility model designs the position in tonifying Qi hole according to the size of cylinder, the positional relationship of the size of piston and cylinder and piston, make to can get enough air compensations in the compression chamber of cylinder in turn, and when compression cavity pressure is larger, and in exhaust phase, tonifying Qi hole can be enable to be fully sealed by piston, to prevent refrigerant from leaking from the reverse flow of tonifying Qi hole, and then improve compressor performance.
Description
Technical field
The utility model relates to refrigerating/heating fields, more particularly to a kind of compressor.
Background technique
In refrigerating/heating circulation, compressor is a kind of device that low pressure refrigerant is promoted to high pressure refrigerant.Traditional rotation
The working principle of rotary compressor is that crankshaft rotation is directly driven by motor, and crankshaft drives eccentric piston in the pressure of cylinder again
The rotation of contracting chamber causes the variation of compression chamber volume, and then completes air-breathing-compression-exhaust process, to realize the pressure to refrigerant
Contracting.But traditional compressor is at low temperatures, the decaying of refrigerant low-temperature heating ability is serious, leads to compression mechanism thermal energy power
It is substantially reduced；And the pressure ratio compressed under cryogenic increases, and load increases, and delivery temperature increases, and causes compressor reliable
Property reduce.
For the performance for improving compressor, traditional compressor usually will increase gas supplementing opening, in compressor operation with
The mode of second vapor injection improves performance.Specifically, opening up a gas supplementing opening on the compressor；Gas supplementing opening connection compression chamber and outer
Boundary's refrigerant is connected to the gas supplementing opening periodically with compression chamber by the movement of piston cycle type, and then increases in compression chamber
Decrement improve compressor performance to increase internal circulating load.
However, compressor is at work, it is inadequate to be still easy to appear air compensation, the unconspicuous problem of performance boost；And
After tonifying Qi hole is set, the problem of revealing at piston inner diameter is readily occurred in, the pressure that also will appear compression chamber is excessive, refrigerant
The problem of mending stomatal limiting value leakage is backward flowed into, compressor performance is leveraged.
Utility model content
Based on this, the purpose of the utility model is to provide a kind of compressors, and having can get enough air compensations,
It can prevent from leaking at piston inner diameter simultaneously, backward flow into tonifying Qi hole prevented also from the refrigerant of compression chamber and let out
The advantages of leakage, raising compressor performance.
A kind of compressor makees the piston being eccentrically rotated, the crankshaft for driving piston operation, support including cylinder, in cylinder
Crankshaft simultaneously forms the supporting element of accommodating space with cylinder and contacts with piston outer wall and accommodating space is divided into suction chamber and pressure
The sliding block of contracting chamber；The cylinder is equipped with air inlet and gas vent；Chamfering is equipped in the inner periphery and the outer periphery of the piston；It is described
Supporting element is equipped with tonifying Qi hole, the distance between center in the tonifying Qi hole to the center of the cylinder and the tonifying Qi hole
Edge to the tonifying Qi hole center distance meet:
Wherein, Es is the eccentricity of crankshaft；S is that the distance between cylinder axis is arrived at the center in tonifying Qi hole；θ is in sliding block
The heart to the center of cylinder line, with angle formed by the line of the center in tonifying Qi hole to the center of cylinder；α is that tonifying Qi hole starts
When tonifying Qi, the line of piston outer wall and center of the tangent point of cylinder inner wall to cylinder, the center to the center of cylinder with sliding block
Line formed by angle；Dp is the outer diameter of piston；Ep is the internal diameter of piston；R is the edge in the tonifying Qi hole to the tonifying Qi
The distance at the center in hole；C1For the radical length of the chamfering on piston outer periphery；C2For the radical length of the chamfering in piston inner circumferential.
Compared with the prior art, the utility model is according to the position of the size of cylinder, the size of piston and cylinder and piston
It sets relationship and designs the position in tonifying Qi hole, and then make to can get enough air compensations in the compression chamber of cylinder, and in compression chamber
When pressure is larger, and in exhaust phase, tonifying Qi hole can be enable to be fully sealed by piston, to both prevent in piston
The leakage problem for being leaked at diameter, and refrigerant being prevented to occur from the reverse flow of tonifying Qi hole, and then improve compressor performance.
Further, the tonifying Qi hole is round hole, to facilitate processing and position the position in tonifying Qi hole.
Further, the distance at center in the edge in the tonifying Qi hole to the tonifying Qi hole also meets:
6.8≤V/r≤42；
Wherein, V indicates the discharge capacity of compressor.
By further limit the edge in the tonifying Qi hole to the tonifying Qi hole center distance so that compressor meets
Displacement requirements.
Further, the tonifying Qi hole also meets in the position of the supporting element:
+ 2 θ=360 ° of alpha+beta；
55°≤θ≤100°；
Wherein, when β is that tonifying Qi hole terminates tonifying Qi, the line of piston outer wall to cylinder inner wall tangent point and cylinder axis,
With angle formed by line of the center to cylinder axis.
By further limiting the position in tonifying Qi hole, further to obtain enough air compensations and further prevent gas leakage.
In order to better understand and implement, according to the present invention will be described in detail below with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of compressor；
Fig. 2 is the structural schematic diagram of piston；
Fig. 3 is structural schematic diagram when tonifying Qi hole starts tonifying Qi；
Fig. 4 is structural schematic diagram when tonifying Qi hole terminates tonifying Qi.
Specific embodiment
Please refer to Fig. 1 to Fig. 4, Fig. 1 is the structural schematic diagram of compressor；Fig. 2 is the structural schematic diagram of piston；Fig. 3
Start structural schematic diagram when tonifying Qi for tonifying Qi hole；Fig. 4 is structural schematic diagram when tonifying Qi hole terminates tonifying Qi.The compressor, packet
It includes cylinder 1, the crankshaft 3 made in cylinder the piston 2 being eccentrically rotated, drive piston operation, support crankshaft and is formed with cylinder close
Close the supporting element 4 of volume space, contacted with piston outer wall and by accommodating space be divided into suction chamber and compression chamber sliding block 5 and
The elastic component 6 being connect with sliding block.Chamfering is equipped in the inner periphery and the outer periphery of the piston 2.The cylinder 1 is equipped with air inlet 11
With gas vent 12.The supporting element 4 is equipped with tonifying Qi hole 41.The tonifying Qi hole 41 is round hole.The position in the tonifying Qi hole 41
Distance is arranged according to the positional relationship of the size of cylinder 1, the size of piston 2 and cylinder 1 and piston 2.Specifically, the benefit
The center of stomata to the distance between the center of the cylinder, with the center at the edge in the tonifying Qi hole to the tonifying Qi hole away from
From satisfaction:
Wherein, Es is the eccentricity of crankshaft；S is that the distance between cylinder axis, unit mm are arrived in the center in tonifying Qi hole；θ
For sliding block center to the center of cylinder line, with angle formed by the line of the center in tonifying Qi hole to the center of cylinder；α is
When tonifying Qi hole starts tonifying Qi, the line of piston outer wall and center of the tangent point of cylinder inner wall to cylinder is arrived with the center of sliding block
Angle formed by the line at the center of cylinder；Dp is the outer diameter of piston, unit mm；Ep is the internal diameter of piston, unit mm；r
For the tonifying Qi hole edge to the tonifying Qi hole center distance, unit mm；C1For the diameter of the chamfering on piston outer periphery
To length, unit mm；C2For the radical length of the chamfering in piston inner circumferential, unit mm.
For convenience of the position for processing and positioning the tonifying Qi hole, in one embodiment, the tonifying Qi hole is round hole.
For the displacement requirements for meeting compressor, as a further improvement of the present invention, the edge in the tonifying Qi hole and described
The distance at the center in tonifying Qi hole also meets:
6.8≤V/r≤42；
Wherein, V indicates the discharge capacity of compressor, unit cc.
It is as a further improvement of the present invention, described further to obtain enough air compensations and further preventing gas leakage
Tonifying Qi hole 41 also meets in the position of the supporting element 4:
+ 2 θ=360 ° of alpha+beta；
55°≤θ≤100°；
Wherein, β is tonifying Qi hole when terminating tonifying Qi, the company of 2 outer wall of piston and the tangent point of 1 inner wall of cylinder to 1 center of cylinder
Line, with angle formed by line of 5 center of sliding block to 1 center of cylinder.
In one embodiment, α=10 °, θ=82.5 °, β=185 °, r=1.0mm, S=23.5mm, V=42.4CC,
Es=4.69mm, Ep=33mm, the radical length C of the chamfering on the periphery of the piston 21Meet 0.05-0.2mm；Preferably,
The radical length C1 of chamfering on the periphery of the piston 2 is 0.13mm；The radical length of chamfering in the inner circumferential of the piston 2
C2Meet 0.3-0.7mm；Preferably, the radical length C2 of the chamfering in the inner circumferential of the piston 2 is 0.5mm.
In the present embodiment, the compressor is single cylinder compressor, and the supporting element 4 includes being separately positioned on about 1 cylinder
The upper bearing (metal) 42 and lower bearing 43 at both ends, are arranged the tonifying Qi hole 41 on upper bearing (metal) 42 or lower bearing 43.
In one embodiment, the compressor is duplex cylinder compressor, and the supporting element 4 includes being arranged in about 1 cylinder
The upper bearing (metal) and lower bearing at both ends and it is arranged between upper bearing (metal) and lower bearing and cylinder body is separated into two accommodating spaces
Intermediate bulkhead；The tonifying Qi hole 41 is set on the intermediate bulkhead, to be connected to described two accommodating spaces.To increase compression effect
Rate is respectively set by the same shaft-driven piston of song between each accommodating space, makes refrigerant in any accommodating
Go out in space through overcompression heel row.
Compared with the prior art, the utility model is according to the position of the size of cylinder, the size of piston and cylinder and piston
It sets relationship and designs the position in tonifying Qi hole, and then make to can get enough air compensations in the compression chamber of cylinder, and in compression chamber
When pressure is larger and in exhaust phase, tonifying Qi hole can be enable to be fully sealed by piston, to both prevent in piston
The leakage problem for being leaked at diameter, and refrigerant being prevented to occur from the reverse flow of tonifying Qi hole, and then improve compressor performance.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (8)
1. a kind of compressor makees the piston being eccentrically rotated, the crankshaft for driving piston operation, support song including cylinder, in cylinder
Axis simultaneously forms the supporting element of accommodating space with cylinder and contacts with piston outer wall and accommodating space is divided into suction chamber and compression
The sliding block of chamber；The cylinder is equipped with air inlet and gas vent；Chamfering is equipped in the inner periphery and the outer periphery of the piston；The branch
Support member be equipped with tonifying Qi hole, it is characterised in that: the distance between center in the tonifying Qi hole to the center of the cylinder, with it is described
The edge in tonifying Qi hole to the tonifying Qi hole center distance meet:
Wherein, Es is the eccentricity of crankshaft；S is that the distance between cylinder axis is arrived at the center in tonifying Qi hole；θ is that the center of sliding block is arrived
The line at the center of cylinder, with angle formed by the line of the center in tonifying Qi hole to the center of cylinder；α is that tonifying Qi hole starts tonifying Qi
When, the line of piston outer wall and center of the tangent point of cylinder inner wall to cylinder, the company with the center of sliding block to the center of cylinder
Angle formed by line；Dp is the outer diameter of piston；Ep is the internal diameter of piston；R is the edge to the tonifying Qi hole in the tonifying Qi hole
The distance at center；C1For the radical length of the chamfering on piston outer periphery；C2For the radical length of the chamfering in piston inner circumferential.
2. compressor according to claim 1, it is characterised in that: the tonifying Qi hole is round hole.
3. compressor according to claim 2, it is characterised in that: the distance r at the edge in the tonifying Qi hole to center is also full
Foot:
6.8≤V/r≤42；
Wherein, V indicates the discharge capacity of compressor.
4. compressor according to claim 1, it is characterised in that: the tonifying Qi hole is also full in the position of the supporting element
Foot:
+ 2 θ=360 ° of alpha+beta；
55°≤θ≤100°；
Wherein, when β is that tonifying Qi hole terminates tonifying Qi, the line of piston outer wall and the tangent point of cylinder inner wall to cylinder axis, with cunning
Angle formed by line of the block center to cylinder axis.
5. compressor according to claim 4, it is characterised in that: the radial distance C of the chamfering in the piston inner circumferential1It is full
Sufficient 0.05-0.2mm.
6. compressor according to claim 5, it is characterised in that: the radial distance C of the chamfering on the piston outer periphery2It is full
Sufficient 0.3-0.7mm.
7. compressor according to claim 1, it is characterised in that: the supporting element includes being separately positioned on cylinder or more two
The tonifying Qi hole is arranged in the upper bearing (metal) and lower bearing at end on the upper bearing (metal) or lower bearing.
8. compressor according to claim 1, it is characterised in that: the supporting element includes that cylinder upper and lower ends are arranged in
Upper bearing (metal) and lower bearing and the middle interval for being arranged between upper bearing (metal) and lower bearing and be separated into cylinder body two accommodating spaces
Plate；The tonifying Qi hole is set on the intermediate bulkhead, to be connected to described two accommodating spaces；And between each accommodating space
It is respectively set by the same shaft-driven piston of song, arranges refrigerant again after overcompression in any accommodating space
Out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820883698.XU CN208281176U (en) | 2018-06-07 | 2018-06-07 | A kind of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820883698.XU CN208281176U (en) | 2018-06-07 | 2018-06-07 | A kind of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281176U true CN208281176U (en) | 2018-12-25 |
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ID=64698490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820883698.XU Active CN208281176U (en) | 2018-06-07 | 2018-06-07 | A kind of compressor |
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| Country | Link |
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| CN (1) | CN208281176U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098312A1 (en) * | 2019-11-22 | 2021-05-27 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machine, and heat exchange apparatus |
-
2018
- 2018-06-07 CN CN201820883698.XU patent/CN208281176U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098312A1 (en) * | 2019-11-22 | 2021-05-27 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machine, and heat exchange apparatus |
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