CN104832400B - Suction muffler and refrigeration compressor - Google Patents
Suction muffler and refrigeration compressor Download PDFInfo
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- CN104832400B CN104832400B CN201510128213.7A CN201510128213A CN104832400B CN 104832400 B CN104832400 B CN 104832400B CN 201510128213 A CN201510128213 A CN 201510128213A CN 104832400 B CN104832400 B CN 104832400B
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- inside bore
- inlet pipe
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Abstract
The invention discloses a suction muffler and a refrigeration compressor. The suction muffler comprises a housing; a noise reduction cavity is formed inside the housing; and an air inlet pipe and air outlet pipe are arranged at the housing. The air inlet pipe includes a semi-direct air inlet pipe and an indirect air inlet pipe; a first external pipe orifice, being able to face a muffler pipe orifice of a shell of a compressor, of the semi-direct air inlet pipe is formed outside the housing; and a second external pipe orifice, being away from the muffler pipe orifice of the shell of the compressor, of the indirect air inlet pipe is formed outside the housing. A bimetallic strip switch that is capable of distributing air inputs of the semi-direct air inlet pipe and the indirect air inlet pipe is also arranged at the housing. According to the invention, the suction muffler has advantages of an indirect suction muffler and a semi-direct suction muffler simultaneously. The bimetallic strip switch controls the semi-direct air inlet pipe and the indirect air inlet pipe and distributes the air inputs of the semi-direct air inlet pipe and the indirect air inlet pipe reasonably; and thus the reflux gas is mixed with high-temperature gas inside the compressor. Therefore, the refrigerating capacity and the performances are guaranteed and the service life of the refrigeration compressor is also prolonged.
Description
Technical field
The present invention is used for Compressor Technology field, more particularly to a kind of air suction silencer and refrigeration compressor.
Background technology
Refrigeration compressor, special standby is freezer compressor it is intended that the gas of the not compressed machine enclosure of suction temperature
Impact, that is, wish that suction system, directly from the cylinder holes that the suction nozzle of compressor is drawn into compressor, sucks in the process
Gas is not blended to produce heat exchange with the high-temperature gas of enclosure interior.Therefore in common applied environment, our pressure
During the design of contracting machine, make the muffler close proximity to compressor case for the air inlet of suction system, this muffler and refrigerator system as far as possible
The vaporizer of cooling system connects, and this design is commonly known as " semi-direct air-breathing "；Even in the air inlet of air suction silencer
One flexible rubber pipe fitting of upper installation, is fitted on the internal face of compressor case it is therefore an objective to prevented suction completely is
System and the mixing of compressor inner chamber high-temperature gas, this design is commonly known as " direct air-breathing ".
But in other applied environment, in the such as tropical environment of high temperature, high humidity, during compressor operating, temperature liter exceeds
Degree, leads to the motor in compressor to burn at too high a temperature, that is, occurs in that burning machine phenomenon.Therefore for these adverse circumstances
Need sacrificial section refrigerating capacity during lower compressor design, design when allow air suction silencer air inlet away from compressor case
Muffler, that is, allow the low-temperature refrigerant of backflow that the compressor movement of high temperature is cooled down, and reduces the temperature of machine winding, reaches
Protection motor, extends the purpose of compressor service life.This design is commonly known as " indirect air-breathing ".
Or i.e. existing technology has been to ensure that compressor performance abandons the protection work(to motor under extreme operating condition
Can, compressor internal temperature is too high, easily causes burning machine；It is to protect electrical machinery life to sacrifice compressor refrigerating capacity,
Performance loss is larger, is unfavorable for energy saving, and prior art is all imperfect.
Content of the invention
For solving the above problems, the present invention provides one kind can flexibly control aspirated mode according to operating mode, it is to avoid burn machine, and
The air suction silencer of reduction refrigerating capacity and performance loss and refrigeration compressor.
The technical solution adopted for the present invention to solve the technical problems is: a kind of air suction silencer, including housing, described shell
Body is internally formed silencing cavity, and described housing is provided with air inlet pipe and escape pipe, described air inlet pipe include quasi-divect charge pipe and
Tap into trachea, described quasi-divect charge pipe described housing outside formed can just to compressor case last time gas tube orifice first
The outside mouth of pipe, described indirect air inlet pipe is formed away from outside the second of compressor case last time gas tube orifice in the outside of described housing
The mouth of pipe, described housing is provided with the bimetal release that can distribute described quasi-divect charge pipe and indirect air inlet pipe air inflow.
It is further used as the improvement of technical solution of the present invention, described quasi-divect charge pipe and indirect air inlet pipe are respectively in noise reduction
Chamber be internally formed the first inside bore and the second inside bore, described bimetal release includes bimetal leaf, described double gold
The one end belonging to piece is fixed on described hull outside and is curled into zigzag shape, and the other end of bimetal leaf extends described noise reduction intracavity
And extending over described first inside bore and the second inside bore successively, described bimetal leaf raises with temperature can be to curling one
End is shunk, and to reduce quasi-divect charge pipe air inflow and to increase indirect air inlet pipe air inflow, bimetal leaf can be to temperature drop
Away from the elongation of curling one end, to increase quasi-divect charge pipe air inflow and to reduce indirect air inlet pipe air inflow.
It is further used as the improvement of technical solution of the present invention, the end face of described first inside bore and the second inside bore is put down
Together, described bimetal leaf includes being curled into the deformations of zigzag shape and extends over successively inside the first inside bore and second
The valve portion of the mouth of pipe, described valve portion opens up through hole, valve portion described through hole away from deformations side formation termination, institute
State deformations temperature≤90 DEG C when, just to described first inside bore, described valve portion fully opens in first described through hole
Portion's mouth of pipe, excessively described second inside bore of described end closure, described valve portion completely closes the second inside bore；Described deformations
During 100 DEG C of temperature ＞, to crimping an end motion, described through hole staggers the first inner tube described deformations traction valve portion completely
Mouthful, valve portion completely closes the first inside bore, staggers the second inside bore completely in described termination, and valve portion fully opens second
Inside bore；During 90 DEG C and≤100 DEG C of described deformations temperature ＞, described deformations traction valve portion to crimping an end motion,
Described throughhole portions stagger the first inside bore, and valve portion part closes the first inside bore, and described end portion staggers second
Inside bore, valve portion partially opens the second inside bore.
It is further used as the improvement of technical solution of the present invention, described housing includes drain pan and the top fastening with described drain pan
Lid, described top cover is provided with the escape pipe stretching into described noise reduction intracavity.
It is further used as the improvement of technical solution of the present invention, described escape pipe is become with described top cover one with indirect air inlet pipe
Type, described quasi-divect charge pipe and drain pan are integrally formed.
It is further used as the improvement of technical solution of the present invention, described quasi-divect charge pipe is provided with one in the first outside mouth of pipe
The drainage hood of side opening.
A kind of refrigeration compressor, including shell, movement and above-mentioned air suction silencer, described inside the shell forms airtight interior
Chamber, described shell is connected with muffler, and described muffler forms the return-air mouth of pipe in the lumen, and the first of described air suction silencer
The outside mouth of pipe is just to the described return-air mouth of pipe, and leaves gap and between the described return-air mouth of pipe.
Beneficial effects of the present invention: the air suction silencer in the present invention is provided simultaneously with " indirect air suction silencer " and " half is straight
Connect air suction silencer " advantage, that is, when common operating mode is run, compressor backflow cryogenic gas entered by quasi-divect charge pipe
Enter noise reduction inner chamber, do not mix with the high-temperature gas of compressor inner chamber, compressor refrigerating capacity and performance are not lost；And severe
Under operating mode, during compressor operating, movement temperature is too high, when motor may be burned out, bimetallic product on-off control quasi-divect charge pipe
With indirect air inlet pipe, reasonable distribution passes through the air inflow of quasi-divect charge pipe and indirect air inlet pipe, allows reflux gas and compressor
Internal high temperature gas mixing, reduces compressor internal temperature, reduces motor temperature, the use longevity of protection motor and refrigeration compressor
Life.
Brief description
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the temperature≤90 DEG C working state structure schematic diagram of air suction silencer embodiment deformations of the present invention；
Fig. 2 is 90 DEG C of temperature ＞ of air suction silencer embodiment deformations of the present invention and≤100 DEG C of working state structures show
It is intended to；
Fig. 3 is 100 DEG C of working state structure schematic diagrams of temperature ＞ of air suction silencer embodiment deformations of the present invention；
Fig. 4 is air suction silencer embodiment bimetal leaf valve portion structural representation of the present invention；
Fig. 5 is refrigeration compressor example structure schematic diagram of the present invention.
Specific embodiment
Referring to figs. 1 to Fig. 4, the invention provides a kind of air suction silencer, including housing 1, described housing 1 is internally formed
Silencing cavity 11, described housing 1 is provided with air inlet pipe and escape pipe 2, and described air inlet pipe includes quasi-divect charge pipe 31 and taps into
Trachea 32, described quasi-divect charge pipe 31 described housing 1 outside formed can just to compressor case 4 last time gas tube orifice the
The one outside mouth of pipe 311, described indirect air inlet pipe 32 is formed away from compressor case 4 last time gas tube orifice in the outside of described housing 1
The second outside mouth of pipe 321, described housing is provided with and can distribute described quasi-divect charge pipe 31 and indirect air inlet pipe 32 air inflow
Bimetal release.Described housing 1 includes drain pan 12 and the top cover 13 fastening with described drain pan 12, and described top cover 13 is provided with
Stretch into the escape pipe 2 in described silencing cavity 11.Described escape pipe 2 and indirect air inlet pipe 32 are integrally formed with described top cover 13, institute
State quasi-divect charge pipe 31 and drain pan 12 is integrally formed.It is provided with one in the first outside mouth of pipe 311 on described quasi-divect charge pipe 31
The drainage hood 5 of side opening.
Wherein, described quasi-divect charge pipe 31 and indirect air inlet pipe 32 being internally formed inside first in silencing cavity 11 respectively
The mouth of pipe 312 and the second inside bore 322, described bimetal release includes bimetal leaf 6, and one end of described bimetal leaf 6 is solid
It is scheduled on described housing 1 outside and is curled into zigzag shape, the other end of bimetal leaf 6 extends in described silencing cavity 11 and prolongs successively
Stretch and cover described first inside bore 312 and the second inside bore 322, described bimetal leaf 6 raises with temperature can be to curling one
End is shunk, and to reduce quasi-divect charge pipe 31 air inflow and to increase indirect air inlet pipe 32 air inflow, bimetal leaf 6 is with temperature drop
Can be to away from the elongation of curling one end, to increase quasi-divect charge pipe 31 air inflow and to reduce indirect air inlet pipe 32 air inflow.Described
First inside bore 312 is concordant with the end face of the second inside bore 322, and described bimetal leaf 6 includes being curled into zigzag shape
Deformations 61 and extend over the first inside bore 312 and the valve portion 62 of the second inside bore 322, described valve portion 62 successively
On open up through hole 63, valve portion 62 described through hole 63 away from deformations 61 side formation termination 64, described deformations 61
During temperature≤90 DEG C, just to described first inside bore 312, described valve portion 62 fully opens the first inner tube to described through hole 63
Mouth 312, described second inside bore 322 was covered in described termination 64, and described valve portion 62 completely closes the second inside bore 322；
During 100 DEG C of described deformations 61 temperature ＞, described deformations 61 traction valve portion 62 is complete to crimping an end motion, described through hole 63
Completely wrong open the first inside bore 312, valve portion 62 completely closes the first inside bore 312, and described termination 64 staggers second completely
Inside bore 322, valve portion 62 fully opens the second inside bore 322；90 DEG C and≤100 DEG C of described deformations 61 temperature ＞
When, to crimping an end motion, described through hole 63 part staggers the first inside bore 312 described deformations 61 traction valve portion 62,
Valve portion 62 part closes the first inside bore 312, and described termination 64 part staggers the second inside bore 322, valve portion 62
Divide and open the second inside bore 322.
With reference to Fig. 5, the invention provides a kind of refrigeration compressor, including shell 4, movement 7 and above-mentioned air suction silencer,
Form airtight inner chamber in described shell 4, described shell 4 is connected with muffler 8, described muffler 8 is formed back in the lumen
Gas tube orifice, the first outside mouth of pipe 311 of described air suction silencer is just to the described return-air mouth of pipe, and leaves and between the described return-air mouth of pipe
Gap.
The present invention carries out the internal UNICOM of deafener using the bimetal leaf of deformation temperature controlled and controls, when compressor is normal
Run, when internal temperature is normal (≤90 DEG C), bimetal leaf is in normal operating conditions, closes indirect air inlet pipe, opens half straight
Tap into trachea, allow backflow refrigerant gas rapidly enter silencing cavity, and do not mix with the high-temperature gas within compressor；Work as compression
Machine misoperation, internal temperature raises (90 DEG C of ＞) extremely, the deformations action of bimetal leaf, and traction valve portion taps between opening
Trachea, reduces the air inflow of quasi-divect charge pipe until closing, and makes backflow refrigerant gas high with refrigeration compressor enclosure
After warm gas mixing, enter back into air suction silencer, realize reducing the purpose of compressor internal temperature；When compressor internal temperature is extensive
After answering normally, the deformations of bimetal leaf drive valve portion to reset, that is, close indirect air inlet pipe, open quasi-divect charge pipe, allow
Backflow refrigerant gas rapidly enters air suction silencer, and does not mix with the high-temperature gas within compressor.
Certainly, the invention is not limited to above-mentioned embodiment, and those of ordinary skill in the art are without prejudice to this
Equivalent variations or replacement also can be made, these equivalent modifications or replacement are all contained in the application right on the premise of spirit
Require in limited range.
Claims (7)
1. a kind of air suction silencer it is characterised in that: include housing, described enclosure interior forms silencing cavity, and described housing sets
There are air inlet pipe and escape pipe, described air inlet pipe includes quasi-divect charge pipe and indirect air inlet pipe, and described quasi-divect charge pipe is in institute
State the outside of housing and form the first outside mouth of pipe that can just to compressor case last time gas tube orifice, described indirect air inlet pipe is described
The outside of housing is formed away from the second outside mouth of pipe of compressor case last time gas tube orifice, described housing be provided with can distribute described
Quasi-divect charge pipe and the bimetal release of indirect air inlet pipe air inflow.
2. air suction silencer according to claim 1 it is characterised in that: described quasi-divect charge pipe and indirect air inlet pipe are divided
It is internally formed the first inside bore and the second inside bore not in silencing cavity, described bimetal release includes bimetal leaf,
One end of described bimetal leaf is fixed on described hull outside and is curled into zigzag shape, and the other end of bimetal leaf extends described
Noise reduction intracavity simultaneously extends over described first inside bore and the second inside bore successively, and described bimetal leaf raises with temperature can
Shrink to curling one end, to reduce quasi-divect charge pipe air inflow and to increase indirect air inlet pipe air inflow, bimetal leaf is with temperature
Decline can be to away from the elongation of curling one end, to increase quasi-divect charge pipe air inflow and to reduce indirect air inlet pipe air inflow.
3. air suction silencer according to claim 2 it is characterised in that: described first inside bore and the second inside bore
End face concordant, described bimetal leaf include being curled into zigzag shape deformations and extend over successively the first inside bore with
The valve portion of the second inside bore, described valve portion opens up through hole, valve portion described through hole away from deformations side shape
Become termination, during temperature≤90 DEG C of described deformations, described through hole just to described first inside bore, beat completely by described valve portion
Open the first inside bore, excessively described second inside bore of described end closure, described valve portion completely closes the second inside bore；Institute
When stating 100 DEG C of deformations temperature ＞, to crimping an end motion, described through hole staggers first to described deformations traction valve portion completely
Inside bore, valve portion completely closes the first inside bore, staggers the second inside bore completely in described termination, and valve portion is beaten completely
Open the second inside bore；During 90 DEG C and≤100 DEG C of described deformations temperature ＞, described deformations traction valve portion is to curling one end
Motion, described throughhole portions stagger the first inside bore, and valve portion part closes the first inside bore, and described end portion staggers
Second inside bore, valve portion partially opens the second inside bore.
4. the air suction silencer according to claim 1,2 or 3 it is characterised in that: described housing include drain pan and with described
The top cover that drain pan fastens, described top cover is provided with the escape pipe stretching into described noise reduction intracavity.
5. air suction silencer according to claim 4 it is characterised in that: described escape pipe and indirect air inlet pipe and described top
Lid is integrally formed, and described quasi-divect charge pipe and drain pan are integrally formed.
6. the air suction silencer according to claim 1,2 or 3 it is characterised in that: first on described quasi-divect charge pipe
The outside mouth of pipe is provided with the drainage hood of a side opening.
7. a kind of refrigeration compressor it is characterised in that: include shell, movement and the air-breathing any one of claim 1～6
Deafener, described inside the shell forms airtight inner chamber, and described shell is connected with muffler, and described muffler is formed in the lumen
The return-air mouth of pipe, the first outside mouth of pipe of described air suction silencer is just to the described return-air mouth of pipe, and leaves and between the described return-air mouth of pipe
Gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510128213.7A CN104832400B (en) | 2015-03-23 | 2015-03-23 | Suction muffler and refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510128213.7A CN104832400B (en) | 2015-03-23 | 2015-03-23 | Suction muffler and refrigeration compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832400A CN104832400A (en) | 2015-08-12 |
| CN104832400B true CN104832400B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510128213.7A Active CN104832400B (en) | 2015-03-23 | 2015-03-23 | Suction muffler and refrigeration compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104832400B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971887B (en) * | 2016-05-10 | 2018-02-23 | 广州万宝集团压缩机有限公司 | A kind of compressor flexible inhalation muffler |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09203386A (en) * | 1996-01-25 | 1997-08-05 | Hitachi Ltd | Closed compressor, and refrigeration air-conditioning system using the same |
| CN101341337B (en) * | 2006-09-13 | 2010-06-02 | 松下电器产业株式会社 | Compressor |
| JP2013119826A (en) * | 2011-12-08 | 2013-06-17 | Panasonic Corp | Hermetic compressor |
| BRPI1105162B1 (en) * | 2011-12-15 | 2021-08-24 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda. | ACOUSTIC FILTER FOR ALTERNATIVE COMPRESSOR |
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- 2015-03-23 CN CN201510128213.7A patent/CN104832400B/en active Active
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| Publication number | Publication date |
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| CN104832400A (en) | 2015-08-12 |
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