CN100383382C - Silencer fixing structure for linear compressor - Google Patents
Silencer fixing structure for linear compressor Download PDFInfo
- Publication number
- CN100383382C CN100383382C CNB2003101068681A CN200310106868A CN100383382C CN 100383382 C CN100383382 C CN 100383382C CN B2003101068681 A CNB2003101068681 A CN B2003101068681A CN 200310106868 A CN200310106868 A CN 200310106868A CN 100383382 C CN100383382 C CN 100383382C
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- piston
- hush pipe
- silencer
- supporting part
- refrigerant
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Abstract
The present invention relates to a silencer fixing structure for a linear compressor, which comprises a piston, a silencer, a support part and a magnet, wherein the piston is arranged in a cylinder and makes a straight reciprocating motion, and the piston is used for absorbing refrigerant and is used for discharging refrigerant after compressing the refrigerant; a silencing pipe penetrating through the inner part of the silencer is arranged in the piston, and the silencer is fixed to one side of the piston; one side of the piston is blocked by the support part, and the center of the support part is penetrated by the silencing pipe; the support part is attached to one end of the piston by the magnet through magnetic force, and the support part corresponding to the silencing pipe moves in the radius direction of the piston; a through hole is formed in the center of the support part, and a certain distance between the support part and the silencing pipe is maintained in order to avoid contacting with the silencing pipe; thus, the noise produced by the piston making a straight reciprocating motion in the cylinder and compressing the refrigerant can be eliminated by the silencer arranged in the compressor; the silencer can be exactly positioned at the center of the piston even if the silencer swings, and thus, the present invention has the advantages that the noise leakage is reduced, and the abrasion caused by contact of the silencer and the piston is avoided.
Description
Technical field
The present invention relates to baffler, relate in particular to the silencer fixing structure of linear compressor.
Background technique
As shown in Figure 1, general linear compressor structure is as follows: the cylinder 2 that is fixedly installed on seal container 1 inside; The piston 4 of compression refrigerant when straight reciprocating motion is done in cylinder 2 inside; Inhaling valve (valve, 6) is arranged on piston 4 rear ends, and inhaling valve 6 flow in the compression volume P that forms between above-mentioned cylinder 2 and the piston 4 refrigerant; Be arranged on the draining valve assembly (assembly, 8) of refrigerant in the discharge compression volume P of rear end of above-mentioned cylinder 2; The linear electric motor (linearmotor, 10) that are arranged on piston 4 front ends provide piston 4 to do the power of straight reciprocating motion; At the inner hush pipe 12a that inserts of piston 4 front ends, reduce the baffler 12 of noise.
Above-mentioned piston 4 comprises that (piston head, 4b), the piston head 4b of drum is connected with piston only 4a, its inner mobile suction passage 4h of refrigerant that forms for columnar piston only 4a and piston head.Described piston only 4a is connected with linear electric motor 10, and in the time of by the driving masterpiece straight reciprocating motion of linear electric motor 10, described piston head 4b is cylinder 2 inner moving, thereby forms above-mentioned compression volume P.
Baffler 12 comprises hush pipe 12a, the 12b of anechoic chamber and the dividing plate 12c of drum.Hush pipe 12a is connected anechoic chamber 12b central authorities, in the inner space that forms the sympathetic response noise of the 12b of anechoic chamber; The dividing plate 12c of central opening, writing board shape is inner outstanding formation of the 12b of anechoic chamber.The means of fixation of baffler 12 is as follows: when hush pipe 12a inserts piston only 4a inside the 12b of anechoic chamber be fixedly installed on inner cylinders (inner case, 1a) and bonnet (back cover, 1b) on.Inner cylinders 1a and bonnet (are fixed with linear electric motor 10 on the 1b.
As shown in Figure 2, hush pipe 12a is supported by the fixed bearing that is arranged on piston only 4a front end (bearing, 14) after inserting piston only 4a.Fixed bearing 14 central authorities of disk shape form the perforation h that runs through hush pipe 12a, and peripheral part is fixed on the piston only 4a by screw (screw), thereby can support hush pipe 12a.
The diameter of the perforation h of fixed bearing 14 is bigger than the diameter of hush pipe 12a, and keeps certain spacing with hush pipe 12a.Thereby can reduce noise by piston only 4a volume inside.
But, the silencer fixing structure of linear compressor in the past there are the following problems point: because hush pipe 12a is fixed on piston only 4a inside by fixed bearing 14.So when being subjected to outside impact, when baffler rocked, hush pipe 12a can frequently touch fixed bearing 14 and produce noise, and the wearing and tearing of part take place.The effect of the reduction noise by piston only 4a inner space when the spacing between hush pipe 12a and the piston only 4a becomes big can die down.
Summary of the invention
In order to overcome the above-mentioned shortcoming that prior art exists, the invention provides a kind of silencer fixing structure of linear compressor, even be subjected to external impact, baffler rocks also avoids touching miscellaneous part, thereby reduces noise and wearing and tearing.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of silencer fixing structure of linear compressor comprises: be arranged on cylinder interior do linear reciprocating motion the time absorb refrigerant and refrigerant compression back discharged the piston of refrigerant; With the baffler that constitutes by hush pipe, anechoic chamber and dividing plate; It is characterized in that: after described hush pipe inserts piston only, support baffler by the supporting part that is arranged on the piston only front end, the central formation of the described supporting part of disk shape runs through the perforation of hush pipe, peripheral part forms annular mounting groove simultaneously, magnet is installed in the mounting groove, thereby makes that supporting part can be free movable along the radial direction of piston.
The silencer fixing structure of described linear compressor, wherein the central authorities of supporting part form perforation, with hush pipe keep fixed spacing contact with hush pipe avoiding.
The silencer fixing structure of described linear compressor wherein forms annular mounting groove with the corresponding side of piston one end on the supporting part, and described magnet is installed on the described mounting groove.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the generalized section of general linear compressor.
Fig. 2 is the schematic representation of the silencer fixing structure of linear compressor in the past.
Fig. 3 is the schematic representation of first preferred embodiment of the silencer fixing structure of linear compressor of the present invention.
Fig. 4 is the schematic representation of second preferred embodiment of the silencer fixing structure of linear compressor of the present invention.
The number in the figure explanation:
54: piston (piston) 62: baffler (silencer)
62a: hush pipe 62b: anechoic chamber (chamber)
62c: dividing plate 64: supporting part
Embodiment
Describe in detail below with reference to embodiments of the invention.
As shown in Figure 3, first preferred embodiment of the silencer fixing structure of linear compressor of the present invention comprises and is arranged on cylinder (not shown) inside, the piston 54 that absorbs refrigerant when doing linear reciprocating motion and refrigerant compression back is discharged; The hush pipe 62a of internal run-through places piston 54 inside, thereby is fixed on the baffler 62 of piston 54 1 sides; Block a side of piston 54, and the supporting part 64 of above-mentioned hush pipe 62a is run through in its central authorities; Utilize magnetic force the end of supporting part 64, make the magnet 66 that above-mentioned supporting part 64 moves along the radial direction of piston 54 relative to hush pipe 62a attached to piston 54.
Above-mentioned piston 54 comprises the piston only 54a and the piston head 54b of drum, and the described piston head 54b of cylindrical shape is connected with piston only 54a, its inner mobile suction passage 54h of refrigerant that forms.Described piston only 54a is connected with linear electric motor, and piston only 54a is by the driving masterpiece straight reciprocating motion of linear electric motor, and described piston head 54b moves in cylinder interior simultaneously, thereby forms the compression volume (not shown).
Above-mentioned baffler 62 comprises hush pipe 62a, the 62b of anechoic chamber and the dividing plate 62c of drum.Described hush pipe 62a is connected anechoic chamber 62b central authorities, in the inner space that forms the sympathetic response noise of the 62b of anechoic chamber; The dividing plate 62c of central opening, writing board shape is inner outstanding formation of the 62b of anechoic chamber.The means of fixation of baffler 62 is as follows: the 62b of anechoic chamber was fixedly installed on inner cylinders (not shown) and the bonnet (not shown) when hush pipe 62a inserted piston only 54a inside.Fixedly the linear electric motor (not shown) also is fixed on inner cylinders (not shown) and the bonnet (not shown).
At this moment, hush pipe 62a supports baffler 62 by the supporting part 64 that is arranged on piston only 54a front end after inserting piston only 54a.Described supporting part 64 central authorities of disk shape form the perforation h that runs through hush pipe 62a, and peripheral part forms the mounting groove 64a of ring ring shape simultaneously, and described magnet 66 is installed by mounting groove 64a.Thereby make that supporting part 64 can be movable freely along the radial direction of piston 54.
The diameter of supporting part 64 perforation h is bigger than the diameter of hush pipe 62a, and keeps certain spacing with hush pipe 62a.Thereby reduce noise by piston only 54a volume inside.
Because the 62b of anechoic chamber is fixed on a side, hush pipe 62a is again by being supported along the supporting part 64 of radial direction activity at piston only 54a.So baffler 62 assembling is easy to, and when being subjected to external impact when hush pipe 62a rocks, supporting part 64 follows hush pipe 62a together along the radial direction activity.Prevented to produce noise or wearing and tearing because of hush pipe 62a touches supporting part 64.
As shown in Figure 4, second preferred embodiment of the silencer fixing structure of linear compressor of the present invention comprises and is arranged on cylinder interior, absorbs refrigerant, and the compression back piston 54 of discharging when doing linear reciprocating motion; Inside is worn empty hush pipe 62a and is placed piston 54 inside, thereby is fixed on the baffler 62 of piston 54 1 sides; Block a side of piston 54, and the supporting part 74 of above-mentioned hush pipe 62a is run through in its central authorities.Described supporting part 74 comprises supporting body 74a and targeting part 74b.The supporting body 74a central authorities of disk shape form the perforation h that runs through hush pipe 62a, the targeting part 74b of drum is the individual components that separates with supporting body 74a, targeting part 74b be wrapped in hush pipe 62a peripheral and with hush pipe 62a institute's determining deviation at interval, simultaneously by damping device 78 elastic support hush pipe 62a.
The process that hush pipe 62a is inserted and secured on piston only 54a is: be inserted at hush pipe 62a under the state of piston only 54a, the front end of targeting part 74b by damping device 76 by elastic support on the support end 75 of hush pipe 62a; Its rear end is supported on the 62b of anechoic chamber.Described support end 75 is to give prominence at the outer surface of hush pipe front end to form.
Described damping device 76 is spiral winding spring (helical coil spring).It is characterized in that because can prevent noise leakage greatly, again because little and make it possible to move freely along the elastic force of radial direction along axial elastic force.
Also be provided with the damping device 78 of elastic material between supporting body 74a and the targeting part 74b.The effect of described damping device 78 is: when piston 54 when radial direction moves, make hush pipe 62a and targeting part 74b be subjected to the buffering of supporting body 74a.Described piston 54 is movable with supporting body 74a.The described damping device 78 of annular shape (ring) is fixedly installed on the perforation h inner peripheral surface of supporting body.
In addition, be provided with also between supporting body 74a and the targeting part 74b that to reduce friction means not shown in the figures.The effect of described reduction friction means is: when piston 54 when radial direction moves, make the relative targeting part 74b of piston 54 do straight reciprocating motion with supporting body 74a.Described reduction friction means is annular shape, and is fixedly installed on the perforation h inner peripheral surface of supporting body.
Baffler 62 hush pipe 62a keep optimal spacing by damping device 76 and supporting part 74 with piston only 54a.Even so be subjected to external impact, when hush pipe 62a rocks, cushioned along axle direction and radial direction by above-mentioned damping device 76 and buffer unit 78, avoided hush pipe 62a to touch targeting part 74b, thereby prevented that the situation that produces noise or wearing and tearing from taking place.And hush pipe 62a and piston only 54a keep optimal spacing, and the noise that has improved piston 54 inner spaces reduces effect.
In addition, the targeting part 74b that forms at supporting part 74 central positions twines part hush pipe 62a, makes targeting part 74b break off noise, has improved noise and has reduced effect.
The effect of invention
The silencer fixing structure of aforesaid linear compressor of the present invention because fixedly run through the supporting part of baffler at an end of piston by magnet, makes the hush pipe of baffler fix in the mode of inserting internal piston.Even rock thereby be subjected to outside impact sound reduction device, hush pipe is also avoided touching with other parts, has reduced noise and component wear.
In addition, the silencer fixing structure of linear compressor of the present invention, because when an end of piston fixedly runs through the supporting part of baffler, between hush pipe and supporting part, buffer unit is set, the hush pipe of baffler is fixed in the mode of inserting internal piston.Even thereby because outside impact sound reduction device rocks, because damping device buffering and do not need special operation also can keep optimal spacing between hush pipe and the supporting part, so can improve the effect of passing through internal piston space reduction noise.
Claims (3)
1. the silencer fixing structure of a linear compressor comprises: be arranged on cylinder interior do linear reciprocating motion the time absorb refrigerant and refrigerant compression back discharged the piston of refrigerant; With the baffler that constitutes by hush pipe, anechoic chamber and dividing plate; It is characterized in that:
After described hush pipe inserts piston only, support baffler by the supporting part that is arranged on the piston only front end, the central formation of the described supporting part of disk shape runs through the perforation of hush pipe, peripheral part forms annular mounting groove simultaneously, magnet is installed in the mounting groove, thereby makes that supporting part can be free movable along the radial direction of piston.Even be subjected to external impact, baffler rocks also avoids touching miscellaneous part, thereby reduces noise and wearing and tearing.
2. the silencer fixing structure of linear compressor according to claim 1 is characterized in that the central authorities of described supporting part form perforation, with hush pipe keep fixed spacing contact with hush pipe avoiding.
3. the silencer fixing structure of linear compressor according to claim 1 is characterized in that forming annular mounting groove with the corresponding side of piston one end on described supporting part, and described magnet is installed on the described mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101068681A CN100383382C (en) | 2003-10-30 | 2003-10-30 | Silencer fixing structure for linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101068681A CN100383382C (en) | 2003-10-30 | 2003-10-30 | Silencer fixing structure for linear compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1611776A CN1611776A (en) | 2005-05-04 |
| CN100383382C true CN100383382C (en) | 2008-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101068681A Expired - Fee Related CN100383382C (en) | 2003-10-30 | 2003-10-30 | Silencer fixing structure for linear compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100383382C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110718A (en) * | 1998-10-08 | 2000-04-18 | Matsushita Refrig Co Ltd | Linear compressor |
| JP2000120535A (en) * | 1998-10-13 | 2000-04-25 | Matsushita Electric Ind Co Ltd | Linear compressor |
| US6089836A (en) * | 1998-01-12 | 2000-07-18 | Lg Electronics Inc. | Linear compressor |
| CN1079908C (en) * | 1995-08-21 | 2002-02-27 | Lg电子株式会社 | Noise-reducing device for linear compressor |
| US20020057973A1 (en) * | 2000-11-10 | 2002-05-16 | Choi Kyung-Shik | Piston operating assembly for a linear compressor and method for manufacturing the same |
| CN1103870C (en) * | 1998-01-12 | 2003-03-26 | Lg电子株式会社 | Structure for coupling muffler for linear compressor |
-
2003
- 2003-10-30 CN CNB2003101068681A patent/CN100383382C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079908C (en) * | 1995-08-21 | 2002-02-27 | Lg电子株式会社 | Noise-reducing device for linear compressor |
| US6089836A (en) * | 1998-01-12 | 2000-07-18 | Lg Electronics Inc. | Linear compressor |
| CN1103870C (en) * | 1998-01-12 | 2003-03-26 | Lg电子株式会社 | Structure for coupling muffler for linear compressor |
| JP2000110718A (en) * | 1998-10-08 | 2000-04-18 | Matsushita Refrig Co Ltd | Linear compressor |
| JP2000120535A (en) * | 1998-10-13 | 2000-04-25 | Matsushita Electric Ind Co Ltd | Linear compressor |
| US20020057973A1 (en) * | 2000-11-10 | 2002-05-16 | Choi Kyung-Shik | Piston operating assembly for a linear compressor and method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1611776A (en) | 2005-05-04 |
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