CN1880760A - Discharge part structure of linear compressor - Google Patents
Discharge part structure of linear compressor Download PDFInfo
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- CN1880760A CN1880760A CN 200510013799 CN200510013799A CN1880760A CN 1880760 A CN1880760 A CN 1880760A CN 200510013799 CN200510013799 CN 200510013799 CN 200510013799 A CN200510013799 A CN 200510013799A CN 1880760 A CN1880760 A CN 1880760A
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Abstract
The invention relates to a discharge structure of liner compressor, wherein the open part of cylinder is incline, to increase the contact area between the open part and the discharge valve, and decrease the pressure of discharge valve on the compress room. The invention can reduce the pressure loose of liquid generated at the start of discharge valve, to improve the compress efficiency; then when closing the discharge valve, it can avoid impacting the discharge valve and the open part, to reduce noise and improve the service life.
Description
Technical field
The present invention relates to a kind of Linearkompressor, particularly a kind of opening portion with cylinder is formed slopely, and tilt discharge valve is installed, make it reduce the pressure loss that produces when discharge valve opens and closes and the discharge portion structure (structure of discharge part for linearcompressor) of colliding the Linearkompressor of noise.
Background technique
In general, Linearkompressor (Linear compressor) is a kind of linear drives power of utilizing linear electric machine, makes piston carry out straight reciprocating motion in the inside of cylinder, and the machine that the fluid that sucks is compressed, discharges.
Fig. 1 is the sectional drawing of Linearkompressor of the prior art; Fig. 2 is the sectional drawing of the discharge portion structure of Linearkompressor of the prior art.
As shown in Figure 1, include in the Linearkompressor of the prior art: the inside of seal container 10 is combined with the cylinder block 14 of cylinder; Be formed with the back cover 18 of fluid intake 16.Wherein, above-mentioned cylinder block 14 and back cover 18 will be supported on the inside of above-mentioned seal container 10 by the 1st vibration damper 20 and the 2nd vibration damper 22 bufferings.
Be provided with linear electric machine 24 between above-mentioned cylinder block 14 and the back cover 18, above-mentioned linear electric machine 24 is used to produce the required driving force of compressed fluid.
Above-mentioned linear electric machine 24 is made of stator and mover substantially.Wherein, said stator includes: the coil 24c in outside core 24a, interior core 24b, formation magnetic field.Above-mentioned mover includes: carry out the magnet 24d that straight line moves by the magnetic force that forms around the above-mentioned coil 24c; The magnet framework 24e that is used for fixing above-mentioned magnet 24d.
In addition, the inside of above-mentioned cylinder 12 is provided with piston 26, and above-mentioned piston 26 carries out straight reciprocating motion under the straight line motion active force of above-mentioned magnet 24d, and the fluid that flows in the above-mentioned cylinder 12 is compressed.
In order to receive the straight line motion active force that above-mentioned magnet 24d transmits, above-mentioned piston 26 will be fixed among the above-mentioned magnet framework 24e.And the rear of above-mentioned piston 26 is formed with the lip part 26a that is fixed in above-mentioned magnet framework 24e.
In addition, for the above-mentioned piston 26 of elastic support, be provided with the 1st spring 28 between above-mentioned lip part 26a and the cylinder block 14.Simultaneously, be provided with the 2nd spring 30 between above-mentioned lip part 26a and the back cover 18.
Above-mentioned piston 26 is the drum that open at the rear, and inside is formed with the suction passage 26d that is used to suck fluid, and the front is equipped with a plurality of inhalation port 26c and is used to open and close the inhaling valve 32 of above-mentioned inhalation port 26c.
Simultaneously, above-mentioned cylinder 12 is the cylindrical structure that open both sides, and a side of above-mentioned cylinder 12 is inserted with above-mentioned piston 26, and the opposite side of above-mentioned cylinder 12 then is provided with the discharge portion 40 that is used to discharge compressed fluid.And, form pressing chamber C by above-mentioned piston 26 and discharge portion 40.
As shown in Figure 2, above-mentioned discharge portion 40 includes: be positioned at pressing chamber C the place ahead of above-mentioned cylinder 12, and be formed with the inboard discharge covering 42 of tap hole 42a in a side; Hide be separated by the outside that both set a distances is provided with, 42 the outside and discharge and hide 48 above-mentioned inboard the discharge; Hide 42 by discharging spring 44 elastic support above-mentioned inboard the discharge, and be used to open and close the discharge valve 46 of the pressing chamber C of above-mentioned cylinder 12.
Above-mentioned inboard discharge hides 42 and is top cover (cap) shape, to be configured for cushioning the discharge chamber of the fluid of discharging among the above-mentioned pressing chamber C.Simultaneously, the above-mentioned outside is discharged to hide in 48 and is connected with discharge tube 50, and above-mentioned discharge tube 50 is used for upwards stating the outside of seal container 10 and discharging discharging fluid.
Above-mentioned discharge spring 44 is installed in above-mentioned inboard the discharge between covering 42 and the discharge valve 46, close the direction of the pressing chamber C of above-mentioned cylinder 12 to above-mentioned discharge valve 46 and give elastic force, it twines for helical, and is the disc spring (coil spring) that cone shape constitutes.
One side end of above-mentioned discharge spring 44 hides 42 with above-mentioned inboard discharge and contact the bump that end side then is fixedly clamped and forms in above-mentioned discharge valve 46.
Below the as above work with Linearkompressor of discharge portion structure in the prior art of structure is described.
When above-mentioned linear electric machine 24 drives, above-mentioned magnet 24d will carry out straight reciprocating motion, the straight line motion of above-mentioned magnet 24d will pass to above-mentioned piston 26 by above-mentioned magnet framework 24e, thereby make above-mentioned piston 26 carry out straight reciprocating motion in the inside of above-mentioned cylinder 12.
When above-mentioned piston 26 retreats, above-mentioned inhaling valve 32 will be unlocked by the pressure difference of above-mentioned suction passage 26b and pressing chamber C, and the fluid that flow in the above-mentioned seal container 10 will be drawn among the pressing chamber C of above-mentioned cylinder 12 by the suction passage 26b of above-mentioned piston 26.Simultaneously, under the effect of the elastic force of above-mentioned discharge spring 44, above-mentioned discharge valve 46 will be closed above-mentioned pressing chamber C.
Subsequently, when above-mentioned piston 26 when above-mentioned discharge portion 40 directions are advanced, above-mentioned inhaling valve 32 will be closed by the pressure difference of above-mentioned suction passage 26b and pressing chamber C, above-mentioned piston 26 will compress the fluid of above-mentioned pressing chamber C inside.
Subsequently, when the pressure among the above-mentioned pressing chamber C during greater than the pressure sum of the pressure of above-mentioned discharge chamber D and above-mentioned discharge valve 46, compressed fluid will overcome the elastic force of above-mentioned discharge spring 44, and open above-mentioned discharge valve 46.
That is, above-mentioned discharge spring 44 compresses to the advance and retreat direction of above-mentioned piston 26, thereby opens above-mentioned discharge valve 46.
When above-mentioned discharge valve 46 is opened, above-mentioned fluid will be discharged to above-mentioned inboard discharge hide 42 after, then by the above-mentioned outside discharge hide 48 and discharge tube 48a discharge to the outside.
By the advance and retreat operation of above-mentioned piston, the constantly process of repeatedly fluid in the above-mentioned pressing chamber C being compressed and discharging.
But, in the discharge portion structure of the Linearkompressor of prior art, because above-mentioned discharge valve 46 supports by above-mentioned discharge spring 44, and has a structure that rectilinear direction opens and closes, when above-mentioned discharge valve 46 is closed, above-mentioned discharge valve 46 collides the end of while with above-mentioned cylinder 12, thereby causes producing bigger noise, and damages above-mentioned discharge valve 46 easily.
And, when the gas that compresses in the above-mentioned pressing chamber promotes above-mentioned discharge valve, will produce bigger fluid pressure loss, and reduce compression efficiency thus.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the object of the present invention is to provide a kind of discharge portion structure of Linearkompressor, the area that the opening portion of above-mentioned cylinder is contacted with discharge valve increases, thereby reduces the pressure that above-mentioned discharge valve imposes on above-mentioned pressing chamber.Therefore, the present invention has following effect,, can reduce the pressure loss of the fluid that takes place when above-mentioned discharge valve is opened that is, and, when closing above-mentioned discharge valve, can reduce to collide noise.
To achieve these goals, the discharge portion structure of the Linearkompressor among the present invention is characterized in that, includes following several sections: the cylinder that is formed with opening portion for the fluid of discharging Piston Compression; Be used to discharge the discharge covering of the fluid of discharging by the opening portion of above-mentioned cylinder; Be used to open and close the discharge valve of the opening portion of above-mentioned cylinder.Wherein, the opening portion of above-mentioned cylinder is formed slopely.
According to the discharge portion structure of the Linearkompressor among the present invention of as above structure, the opening portion of cylinder will be formed slopely, and the area that the opening portion of above-mentioned cylinder is contacted with discharge valve increases, thereby reduces the pressure that above-mentioned discharge valve imposes on above-mentioned pressing chamber.Therefore, the present invention has following effect,, can reduce the pressure loss of the fluid that takes place when above-mentioned discharge valve is opened that is, thereby improves the compression efficiency of compressor.
And, when closing above-mentioned discharge valve, avoid the above-mentioned discharge valve while and the opening portion of above-mentioned cylinder to collide, thereby can reduce to collide noise, prevent breakage, and improve durability of products.
Description of drawings
Fig. 1 is the sectional drawing of Linearkompressor of the prior art;
Fig. 2 is the sectional drawing of the discharge portion structure of Linearkompressor of the prior art;
Fig. 3 is the sectional drawing of the Linearkompressor among the present invention;
Fig. 4 is the sectional drawing of the discharge portion structure of the Linearkompressor among the present invention;
Fig. 5 is the sectional drawing of the discharge valve closed condition among the present invention.
The critical piece description of reference numerals
50: seal container 52: cylinder
54: cylinder block 56: the back cover
58: piston 60: linear electric machine
64: the 2 vibration dampers of 62: the 1 vibration dampers
70: discharge portion 72: discharge valve
Embodiment
With reference to the accompanying drawings the embodiment among the present invention is described in detail.
Fig. 3 is the sectional drawing of the Linearkompressor among the present invention; Fig. 4 is the sectional drawing of the discharge portion structure of the Linearkompressor among the present invention; Fig. 5 is the sectional drawing of the discharge valve closed condition among the present invention.
To shown in Figure 5, the Linearkompressor among the present invention includes as Fig. 3: the seal container 50 that is formed with the inflow entrance 50a of external fluid inflow; Be positioned at the inside of above-mentioned seal container 50, and be used for the linear compression portion of compressed fluid.Above-mentioned linear compression portion includes: the cylinder block 54 that is provided with cylinder 52; Be provided with the back cover 56 of the suction pipe 56a that is used to suck above-mentioned seal container inner fluid; Advance and retreat in the inside of above-mentioned cylinder 52, and the piston 58 of compressed fluid; In order to make above-mentioned piston 58 advance and retreat in the above-mentioned cylinder 52, and produce the linear electric machine 60 of driving force.
Above-mentioned cylinder block 54 and back cover 56 will be supported in the above-mentioned seal container 50 by the 1st vibration damper 62 and the 2nd vibration damper 64 bufferings.
Above-mentioned linear electric machine 60 is made of stator and mover substantially.Wherein, said stator includes: outside core 60a; Has the interior core 60b that a fixed gap is provided with above-mentioned outside core 60a; Be used to form the coil 60c in magnetic field.Above-mentioned mover includes: be arranged between above-mentioned outside core 60a and the interior core 60b, and carry out the magnet 60d that straight line moves by the magnetic force that forms around the above-mentioned coil 60c; One side is fixed with above-mentioned magnet 60d, and opposite side is combined with above-mentioned piston 58, transmits the magnet framework 60e of straight line motion active force to above-mentioned piston 58.
In addition, for above-mentioned piston 58 being fixed on the above-mentioned magnet framework 60e, be formed with the lip part 58a that protrudes laterally in the above-mentioned piston 58, the inside of above-mentioned piston 58 is formed with the suction passage 58b that is used to suck fluid.Simultaneously, the front of above-mentioned piston 58 is equipped with a plurality of inhalation port 58c, and the inhaling valve 66 that is used to open and close above-mentioned inhalation port 58c.
In addition, above-mentioned cylinder 52 is the cylindrical structure that open at two ends, and the back of above-mentioned cylinder 52 is inserted with the piston 58 of the operation of advancing and retreat, and the front then is formed with the opening portion of the fluid that is used to discharge above-mentioned piston 58 compressions.
Opening portion the place ahead of above-mentioned cylinder 52 is provided with the discharge portion 70 that is used to discharge fluid, and thus, the inside of above-mentioned cylinder 52 will form the pressing chamber 70 of above-mentioned piston 58 and discharge portion 70 formations.
Wherein, the opening portion of above-mentioned cylinder 52 is formed slopely, the end of the above-mentioned piston 58 that inserts in the above-mentioned cylinder 52 also with corresponding being formed slopely of the structure of the above-mentioned opening portion that is formed slopely, thereby make above-mentioned pressing chamber C be tilted shape.
Above-mentioned discharge portion 70 includes: the discharge that is used for discharging the fluid that the pressing chamber C of above-mentioned cylinder 52 discharges hides; Be used to open and close the discharge valve 72 of the pressing chamber C of above-mentioned cylinder 52; Be installed in above-mentioned discharge and hide, and the discharge spring 74 of the above-mentioned discharge valve 72 of elastic support.
Wherein, above-mentioned discharge hides and includes: the inboard that is formed with the discharge chamber D that is used to discharge fluid is discharged and is hidden 76; Be arranged at the above-mentioned inboard outside that hides 76 outsides of discharging and discharge covering 78.Here, the above-mentioned outside is discharged and is hidden 78 and hide 76 at intervals with above-mentioned inboard the discharge when being provided with, thus the noise of generation and the buffer space of impact when being formed for reducing compressed fluid and discharging.
In addition, corresponding with the opening portion of above-mentioned cylinder 52, above-mentioned discharge valve 72 and discharge spring 74 are installed in above-mentioned inboard inner inclination of discharging covering 76.
That is, be close to the end of above-mentioned cylinder 52 in order to make above-mentioned discharge valve 72, above-mentioned discharge valve 72 will be installed with the angle tilt identical with the angle of inclination of above-mentioned cylinder 52 opening portions.
When above-mentioned discharge spring 74 is installed, need it to provide elastic force with direction perpendicular to above-mentioned cylinder opening portion.Therefore, hide in 76 above-mentioned inboard the discharge, a part that is used to support the front face 76a of above-mentioned discharge spring 74 will be formed slopely.
One end of above-mentioned discharge spring 74 is clamped in the bump 72a that protrudes in the above-mentioned discharge valve 72, and the other end then is arranged at the above-mentioned inboard front face 76a that hides 76 medium dips that discharges.
And, above-mentioned inboard discharge to hide in 76 be formed with tap hole 76b, the above-mentioned outside is discharged to hide in 78 and is provided with connecting tube 80, is connected with the discharge tube 82 that the fluid that will discharge is discharged to the outside in the above-mentioned connecting tube 80.
Below the as above work of the neutral line compressor of the present invention of structure is described.
When above-mentioned linear electric machine 60 drives, above-mentioned piston 58 will carry out continuous straight reciprocating motion in above-mentioned cylinder 52.
When above-mentioned piston 58 advances, the pressure of the fluid by above-mentioned cylinder 52 internal compression, above-mentioned discharge valve 72 will be pushed and open, and the fluid of above-mentioned cylinder 52 internal compression will be discharged to above-mentioned inboard the discharge and hide 76 inside.
Wherein, the opening portion of above-mentioned cylinder 52 is formed slopely, thereby the area that the opening portion of above-mentioned cylinder 52 is contacted with above-mentioned discharge valve 72 increases.
Because the pressure and the area of above-mentioned discharge valve 72 are inversely proportional to, above-mentioned discharge valve 72 reduces for the opening portion applied pressure of above-mentioned cylinder 52 with corresponding, thereby the fluid of compression is with the above-mentioned discharge valve 72 of easier promotion.
Therefore, can be corresponding the fluid of minimizing compression promote above-mentioned discharge valve 72 required pressure and time, thereby the pressure loss that the fluid that can reduce compression produced when promoting above-mentioned discharge valve 72.
Subsequently, above-mentionedly be discharged to inboard the discharge and hide 76 fluid and will be discharged to the above-mentioned outside by above-mentioned tap hole 76b and discharge and hide in 78, and discharge to the outside by above-mentioned discharge tube 82.
In addition, when above-mentioned piston 58 retreats, the pressure among the above-mentioned pressing chamber C will be lower than the pressure among the above-mentioned discharge chamber D, thereby under the effect of the elastic restoring force of above-mentioned discharge spring 74, above-mentioned discharge valve 72 will be closed.
At this moment, because the above-mentioned discharge valve among the above-mentioned discharge chamber D is in heeling condition, when above-mentioned discharge valve 72 opens and closes, the upside of above-mentioned discharge chamber D and the pressure of downside and flow resistance will have nothing in common with each other.
That is and since above-mentioned discharge valve 72 in above-mentioned discharge chamber D to lower side to unlatching, the downside flow resistance in the above-mentioned discharge chamber D is bigger, the pressure of the downside also pressure than upside is big.
As shown in Figure 5, when above-mentioned discharge valve 72 was closed, the downside of above-mentioned discharge valve 72 will be than upside earlier closing, thereby avoided above-mentioned discharge valve 72 to collide with above-mentioned cylinder 52 simultaneously.
Thus, the noise that produces in the time of can reducing above-mentioned discharge valve 72 and close, simultaneously, less impact force will prevent the parts breakage, and improve durability of products.
Claims (4)
1. the discharge portion structure of a Linearkompressor is characterized in that, comprising:
Be formed with the cylinder of opening portion for the fluid of discharging Piston Compression;
Be used to discharge the discharge covering of the fluid of discharging by the opening portion of above-mentioned cylinder;
Be used to open and close the discharge valve of the opening portion of above-mentioned cylinder;
Wherein, the opening portion of above-mentioned cylinder is formed slopely.
2. the discharge portion structure of Linearkompressor according to claim 1 is characterized in that:
The end of above-mentioned piston and corresponding being formed slopely of the opening portion of above-mentioned cylinder.
3. the discharge portion structure of Linearkompressor according to claim 2 is characterized in that:
Between hiding, above-mentioned discharge valve and discharge be provided with the discharge spring that is used for the above-mentioned discharge valve of elastic support;
In the inside that above-mentioned discharge hides, the inclination that above-mentioned discharge valve and discharge spring are corresponding with the opening portion of above-mentioned cylinder is installed.
4. the discharge portion structure of Linearkompressor according to claim 3 is characterized in that: the part of the above-mentioned discharge spring of support that above-mentioned discharge hides is formed slopely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013799 CN1880760A (en) | 2005-06-13 | 2005-06-13 | Discharge part structure of linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013799 CN1880760A (en) | 2005-06-13 | 2005-06-13 | Discharge part structure of linear compressor |
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| Publication Number | Publication Date |
|---|---|
| CN1880760A true CN1880760A (en) | 2006-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510013799 Pending CN1880760A (en) | 2005-06-13 | 2005-06-13 | Discharge part structure of linear compressor |
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| Country | Link |
|---|---|
| CN (1) | CN1880760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343666A (en) * | 2013-08-06 | 2015-02-11 | 海尔集团公司 | Exhaust structure of linear compressor |
-
2005
- 2005-06-13 CN CN 200510013799 patent/CN1880760A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343666A (en) * | 2013-08-06 | 2015-02-11 | 海尔集团公司 | Exhaust structure of linear compressor |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20061220 |
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| C20 | Patent right or utility model deemed to be abandoned or is abandoned |