CN104832400A - Suction muffler and refrigeration compressor - Google Patents
Suction muffler and refrigeration compressor Download PDFInfo
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- CN104832400A CN104832400A CN201510128213.7A CN201510128213A CN104832400A CN 104832400 A CN104832400 A CN 104832400A CN 201510128213 A CN201510128213 A CN 201510128213A CN 104832400 A CN104832400 A CN 104832400A
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- inside bore
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- valve portion
- indirect
- divect
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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, particularly relates to a kind of air suction silencer and refrigeration compressor.
Background technique
Refrigeration compressor, spy is standby is freezer compressor, we wish the gases affect of inhalation temperature not machine enclosure by compression, namely wish that suction system is directly drawn into the cylinder holes of compressor from the sucking pipe of compressor, the gas sucked in the process does not mix with the high-temperature gas of enclosure interior and produces exchange heat.Therefore in common applied environment, during our compressor design, make the suction port of suction system as far as possible near the muffler of compressor case, this muffler is connected with the vaporizer of refrigerator refrigeration system as far as possible, and this design proposal is commonly called " half direct air-breathing "; The rubber pipe fitting that even installation one is flexible on the suction port of air suction silencer, be fitted on the internal face of compressor case, object has stopped the system of suction and mixing of compressor inner chamber high-temperature gas completely, and this design proposal is commonly called " direct air-breathing ".
But in other applied environment, in the tropical environment of such as high temperature, high humidity, excessive temperature rise during compressor operating, causes the motor in compressor to burn at too high a temperature, has namely occurred burning machine phenomenon.Therefore sacrificial section refrigerating capacity is needed under these rugged environment during compressor design; allow the suction port of air suction silencer away from the muffler of compressor case when designing; namely the compressor movement of low-temperature refrigerant to high temperature of backflow is allowed to cool; reduce the temperature of motor winding; reach protection motor, extend the object in compressor working life.This design proposal is commonly called " indirect air-breathing ".
I.e. existing technology or be the protective function that ensure that compressor performance and abandon to motor under extreme operating condition, compressor inside temperature is too high, easily causes burning machine; Be to protect electrical machinery life to sacrifice compressor refrigerating capacity, performance loss is comparatively large, and be unfavorable for energy saving, prior art is all imperfect.
Summary of the invention
For solving the problem, the invention provides one and can control aspirated mode flexibly according to operating mode, avoiding burning machine, and reduce air suction silencer and the refrigeration compressor of refrigerating capacity and performance loss.
The technical solution adopted for the present invention to solve the technical problems is: a kind of air suction silencer, comprise housing, described enclosure interior forms silencing cavity, described housing is provided with suction tude and steam outlet pipe, described suction tude comprises quasi-divect charge pipe and indirect suction tude, described quasi-divect charge pipe is formed in the outside of described housing can just to the first outside mouth of pipe of compressor case gas tube orifice last time, described indirect suction tude forms the second outside mouth of pipe away from compressor case gas tube orifice last time in the outside of described housing, described housing is provided with the bimetal release that can distribute described quasi-divect charge pipe and indirect suction tude air inflow.
Be further used as the improvement of technical solution of the present invention, described quasi-divect charge pipe and indirect suction tude form the first inside bore and the second inside bore in the inside of silencing cavity respectively, described bimetal release comprises bimetallic strip, one end of described bimetallic strip is fixed on described hull outside and is curled into zigzag shape, the other end of bimetallic strip extends in described silencing cavity also to extend successively and covers described first inside bore and the second inside bore, described bimetallic strip raises can shrink to curling one end with temperature, to reduce quasi-divect charge pipe air inflow and to increase indirect suction tude air inflow, bimetallic strip declines can extend to away from curling one end with temperature, to increase quasi-divect charge pipe air inflow and to reduce indirect suction tude air inflow.
Be further used as the improvement of technical solution of the present invention, described first inside bore is concordant with the end face of the second inside bore, described bimetallic strip comprises the deformations that is curled into zigzag shape and extends the valve portion covering the first inside bore and the second inside bore successively, described valve portion offers through hole, valve portion is in the side formation termination of described through hole away from deformations, during temperature≤90 DEG C of described deformations, described through hole is just to described first inside bore, described valve portion opens the first inside bore completely, described end closure crosses described second inside bore, described valve portion closes the second inside bore completely, during described deformations temperature > 100 DEG C, described deformations traction valve portion is to a curling end motion, described through hole staggers the first inside bore completely, valve portion closes the first inside bore completely, stagger the second inside bore completely in described termination, valve portion opens the second inside bore completely, described deformations temperature > 90 DEG C and≤100 DEG C time, described deformations traction valve portion is to a curling end motion, described throughhole portions staggers the first inside bore, valve portion part closes the first inside bore, stagger the second inside bore completely in described termination, valve portion partially opens the second inside bore.
Be further used as the improvement of technical solution of the present invention, the top cover that described housing comprises drain pan and fastens with described drain pan, described top cover is provided with the steam outlet pipe stretched in described silencing cavity.
Be further used as the improvement of technical solution of the present invention, described steam outlet pipe and indirect suction tude and described top cover one-body molded, described quasi-divect charge pipe and drain pan one-body molded.
Be further used as the improvement of technical solution of the present invention, described quasi-divect charge pipe be provided with the drainage hood of a side opening at the first outside mouth of pipe.
A kind of refrigeration compressor, comprise shell, movement and above-mentioned air suction silencer, airtight inner chamber is formed in described shell, described shell is connected with muffler, described muffler forms the return-air mouth of pipe in the lumen, the first outside mouth of pipe of described air suction silencer just to the described return-air mouth of pipe, and and leaves gap between the described return-air mouth of pipe.
Beneficial effect of the present invention: the air suction silencer in the present invention possesses the advantage of " indirect air suction silencer " and " half direct air suction silencer " simultaneously, namely when common operating mode is run, the cryogenic gas of compressor backflow enters noise reduction inner chamber by quasi-divect charge pipe, do not mix with the high-temperature gas of compressor inner chamber, compressor refrigerating capacity and performance are not lost; And under bad working environments; during compressor operating, movement temperature is too high; when motor may be burnt; bimetal product switch control rule quasi-divect charge pipe and indirect suction tude; reasonable distribution, by the air inflow of quasi-divect charge pipe and indirect suction tude, allows reflux gas and compressor internal high temperature gas and vapor permeation, reduces compressor inside temperature; reduce motor temperature, the working life of protection motor and refrigeration compressor.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
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 the temperature > 90 DEG C of air suction silencer embodiment deformations of the present invention and≤100 DEG C of working state structure schematic diagram;
Fig. 3 is temperature > 100 DEG C of working state structure schematic diagram of air suction silencer embodiment deformations of the present invention;
Fig. 4 is air suction silencer embodiment bimetallic strip valve portion structural representation of the present invention;
Fig. 5 is refrigeration compressor example structure schematic diagram of the present invention.
Embodiment
Referring to figs. 1 through Fig. 4, the invention provides a kind of air suction silencer, comprise housing 1, described housing 1 inside forms silencing cavity 11, described housing 1 is provided with suction tude and steam outlet pipe 2, described suction tude comprises quasi-divect charge pipe 31 and indirect suction tude 32, described quasi-divect charge pipe 31 is formed in the outside of described housing 1 can just to the first outside mouth of pipe 311 of compressor case 4 gas tube orifice last time, described indirect suction tude 32 forms the second outside mouth of pipe 321 away from compressor case 4 gas tube orifice last time in the outside of described housing 1, described housing is provided with the bimetal release that can distribute described quasi-divect charge pipe 31 and indirect suction tude 32 air inflow.The top cover 13 that described housing 1 comprises drain pan 12 and fastens with described drain pan 12, described top cover 13 is provided with the steam outlet pipe 2 stretched in described silencing cavity 11.Described steam outlet pipe 2 and indirect suction tude 32 one-body molded with described top cover 13, described quasi-divect charge pipe 31 and drain pan 12 one-body molded.Described quasi-divect charge pipe 31 is provided with the drainage hood 5 of a side opening at the first outside mouth of pipe 311.
Wherein, described quasi-divect charge pipe 31 and indirect suction tude 32 form the first inside bore 312 and the second inside bore 322 respectively in the inside of silencing cavity 11, described bimetal release comprises bimetallic strip 6, one end of described bimetallic strip 6 to be fixed on outside described housing 1 and to be curled into zigzag shape, the other end of bimetallic strip 6 extends in described silencing cavity 11 also to extend successively and covers described first inside bore 312 and the second inside bore 322, described bimetallic strip 6 raises can shrink to curling one end with temperature, to reduce quasi-divect charge pipe 31 air inflow and to increase indirect suction tude 32 air inflow, bimetallic strip 6 declines can extend to away from curling one end with temperature, to increase quasi-divect charge pipe 31 air inflow and to reduce indirect suction tude 32 air inflow.Described first inside bore 312 is concordant with the end face of the second inside bore 322, described bimetallic strip 6 comprises the deformations 61 that is curled into zigzag shape and extends the valve portion 62 covering the first inside bore 312 and the second inside bore 322 successively, described valve portion 62 offers through hole 63, valve portion 62 is in the side formation termination 64 of described through hole 63 away from deformations 61, during temperature≤90 DEG C of described deformations 61, described through hole 63 is just to described first inside bore 312, described valve portion 62 opens the first inside bore 312 completely, described second inside bore 322 was covered in described termination 64, described valve portion 62 closes the second inside bore 322 completely, during described deformations 61 temperature > 100 DEG C, described deformations 61 draws valve portion 62 to a curling end motion, described through hole 63 staggers the first inside bore 312 completely, valve portion 62 closes the first inside bore 312 completely, stagger the second inside bore 322 completely in described termination 64, valve portion 62 opens the second inside bore 322 completely, described deformations 61 temperature > 90 DEG C and≤100 DEG C time, described deformations 61 draws valve portion 62 to a curling end motion, described through hole 63 part staggers the first inside bore 312, valve portion 62 part closes the first inside bore 312, stagger the second inside bore 322 completely in described termination 64, valve portion 62 partially opens the second inside bore 322.
With reference to Fig. 5, the invention provides a kind of refrigeration compressor, comprise shell 4, movement 7 and above-mentioned air suction silencer, airtight inner chamber is formed in described shell 4, described shell 4 is connected with muffler 8, described muffler 8 forms the return-air mouth of pipe in the lumen, and the first outside mouth of pipe 311 of described air suction silencer just to the described return-air mouth of pipe, and and leaves gap between the described return-air mouth of pipe.
The present invention adopts the bimetallic strip by temperature controlling distortion to carry out the inner UNICOM of baffler and controls, when compressor normally runs, when inside temperature is normal (≤90 DEG C), bimetallic strip is in normal working, close indirect suction tude, open quasi-divect charge pipe, allow backflow refrigerant gas enter silencing cavity fast, and do not mix with the high-temperature gas of compressor inside; When compressor misoperation, inside temperature is abnormal raises (> 90 DEG C), the deformations action of bimetallic strip, traction valve portion opens indirect suction tude, reduce the air inflow of quasi-divect charge pipe until close, after allowing backflow refrigerant gas mix with refrigeration compressor enclosure high-temperature gas, then enter air suction silencer, realize the object reducing compressor inside temperature; When compressor inside temperature recovers normally, the deformations of bimetallic strip drives valve portion to reset, and namely closes indirect suction tude, opens quasi-divect charge pipe, allow backflow refrigerant gas enter air suction silencer fast, and do not mix with the high-temperature gas of compressor inside.
Certainly, the invention is not limited to above-mentioned mode of execution, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (7)
1. an air suction silencer, it is characterized in that: comprise housing, described enclosure interior forms silencing cavity, described housing is provided with suction tude and steam outlet pipe, described suction tude comprises quasi-divect charge pipe and indirect suction tude, described quasi-divect charge pipe is formed in the outside of described housing can just to the first outside mouth of pipe of compressor case gas tube orifice last time, described indirect suction tude forms the second outside mouth of pipe away from compressor case gas tube orifice last time in the outside of described housing, described housing is provided with the bimetal release that can distribute described quasi-divect charge pipe and indirect suction tude air inflow.
2. air suction silencer according to claim 1, it is characterized in that: described quasi-divect charge pipe and indirect suction tude form the first inside bore and the second inside bore in the inside of silencing cavity respectively, described bimetal release comprises bimetallic strip, one end of described bimetallic strip is fixed on described hull outside and is curled into zigzag shape, the other end of bimetallic strip extends in described silencing cavity also to extend successively and covers described first inside bore and the second inside bore, described bimetallic strip raises can shrink to curling one end with temperature, to reduce quasi-divect charge pipe air inflow and to increase indirect suction tude air inflow, bimetallic strip declines can extend to away from curling one end with temperature, to increase quasi-divect charge pipe air inflow and to reduce indirect suction tude air inflow.
3. air suction silencer according to claim 2, it is characterized in that: described first inside bore is concordant with the end face of the second inside bore, described bimetallic strip comprises the deformations that is curled into zigzag shape and extends the valve portion covering the first inside bore and the second inside bore successively, described valve portion offers through hole, valve portion is in the side formation termination of described through hole away from deformations, during temperature≤90 DEG C of described deformations, described through hole is just to described first inside bore, described valve portion opens the first inside bore completely, described end closure crosses described second inside bore, described valve portion closes the second inside bore completely, during described deformations temperature > 100 DEG C, described deformations traction valve portion is to a curling end motion, described through hole staggers the first inside bore completely, valve portion closes the first inside bore completely, stagger the second inside bore completely in described termination, valve portion opens the second inside bore completely, described deformations temperature > 90 DEG C and≤100 DEG C time, described deformations traction valve portion is to a curling end motion, described throughhole portions staggers the first inside bore, valve portion part closes the first inside bore, stagger the second inside bore completely in described termination, valve portion partially opens the second inside bore.
4. the air suction silencer according to claim 1,2 or 3, is characterized in that: the top cover that described housing comprises drain pan and fastens with described drain pan, and described top cover is provided with the steam outlet pipe stretched in described silencing cavity.
5. air suction silencer according to claim 4, is characterized in that: described steam outlet pipe and indirect suction tude and described top cover one-body molded, described quasi-divect charge pipe and drain pan one-body molded.
6. the air suction silencer according to claim 1,2 or 3, is characterized in that: the drainage hood described quasi-divect charge pipe being provided with a side opening at the first outside mouth of pipe.
7. a refrigeration compressor, it is characterized in that: comprise the air suction silencer according to any one of shell, movement and claim 1 ~ 6, airtight inner chamber is formed in described shell, described shell is connected with muffler, described muffler forms the return-air mouth of pipe in the lumen, the first outside mouth of pipe of described air suction silencer just to the described return-air mouth of pipe, and and leaves gap between the described return-air mouth of pipe.
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 true CN104832400A (en) | 2015-08-12 |
| CN104832400B 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 |
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| Country | Link |
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| CN (1) | CN104832400B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971887A (en) * | 2016-05-10 | 2016-09-28 | 广州万宝集团压缩机有限公司 | Flexible suction muffler for compressor |
Citations (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 |
| CN101341337A (en) * | 2006-09-13 | 2009-01-07 | 松下电器产业株式会社 | Compressor |
| JP2013119826A (en) * | 2011-12-08 | 2013-06-17 | Panasonic Corp | Hermetic compressor |
| CN104093983A (en) * | 2011-12-15 | 2014-10-08 | 惠而浦股份有限公司 | Acoustic filter for compressor |
-
2015
- 2015-03-23 CN CN201510128213.7A patent/CN104832400B/en active Active
Patent Citations (5)
| 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 |
| CN101341337A (en) * | 2006-09-13 | 2009-01-07 | 松下电器产业株式会社 | Compressor |
| JP2013119826A (en) * | 2011-12-08 | 2013-06-17 | Panasonic Corp | Hermetic compressor |
| CN104093983A (en) * | 2011-12-15 | 2014-10-08 | 惠而浦股份有限公司 | Acoustic filter for compressor |
| US20140345968A1 (en) * | 2011-12-15 | 2014-11-27 | Whirlpool S.A. | Acoustic filter suitable for reciprocating compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971887A (en) * | 2016-05-10 | 2016-09-28 | 广州万宝集团压缩机有限公司 | Flexible suction muffler for compressor |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104832400B (en) | 2017-01-25 |
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