CN1548727A - Resonant spring fixing structure for reciprocating compressor - Google Patents

Resonant spring fixing structure for reciprocating compressor Download PDF

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Publication number
CN1548727A
CN1548727A CNA031298141A CN03129814A CN1548727A CN 1548727 A CN1548727 A CN 1548727A CN A031298141 A CNA031298141 A CN A031298141A CN 03129814 A CN03129814 A CN 03129814A CN 1548727 A CN1548727 A CN 1548727A
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China
Prior art keywords
spring
resonant spring
resonant
fixed structure
reciprocal compressor
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CNA031298141A
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CN100359171C (en
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玄成烈
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Priority to CNB031298141A priority Critical patent/CN100359171C/en
Publication of CN1548727A publication Critical patent/CN1548727A/en
Application granted granted Critical
Publication of CN100359171C publication Critical patent/CN100359171C/en
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Abstract

The resonant spring fixing structure for reciprocating compressor includes reciprocating motor with several stators to fix frame and rotor reciprocating linear among the stators; spring support stage fixed on side of axially reciprocating piston; several front and back resonant springs set between the spring support stage and the corresponding frame to induce the resonance of the rotor and the piston; and spring fixing part combining with the resonant springs. During the resonance of the front and back resonant springs, their rotation avoids the wear of the spring fixing part and raises the reliability of the compressor.

Description

The resonant spring fixed structure of reciprocal compressor
Technical field
The present invention relates to reciprocal compressor, especially change the resonant spring fixed structure of compressor assembly piston.
Background technique
Usually, the refrigeration agent of the low-temp low-pressure that the compressor absorption vaporizer in the refrigeration cycle is sent is compressed into the refrigeration agent and the output of High Temperature High Pressure with it.
Compressor has been distinguished rotary compressor, reciprocal compressor, screw compressor etc. according to the mode of compression working fluid, particularly the piston of reciprocal compressor sucks in the process of moving linearly and pressurized gas, the compressor employing is carried out straight reciprocating motion with mode and the drive motor that rotatablely moving of drive motor is converted into the to-and-fro motion pressurized gas of piston, so that piston also moves back and forth, inhale people and pressurized gas.
As shown in Figure 1, reciprocal compressor comprises: yielding support is arranged on the frame 20 of casing 10 inside; Be fixed on the frame 20, produce the reciprocable machine 30 of linear drives power; Compression assembly 40 by the compression working fluid of frame 20 supporting; Be arranged on the resonant spring group 50 that the piston 42 of inducing rotor 33 and compression assembly 40 between the rotor 33 of frame 20 and reciprocable machine carries out resonance motion together.
Frame 20 comprises: support the outer stator 31 of reciprocable machine 30 and the side of inside stator 32, support and be inserted in the anterior frame 21 of the cylinder 41 of supporting compression assembly 40 simultaneously; Combine with anterior frame 21, support the opposite side of reciprocable machine 30 outer stators 31, and support the intermediate stand 22 of anterior resonant spring 51; Combine the outer stator 31 of supporting reciprocable machine 30 and the opposite side of inside stator 32, and the rear portion frame 23 of supporting rear portion resonant spring 52 with intermediate stand 22.
Reciprocable machine 30 comprises: be fixed on the outer stator 31 between anterior frame 21 and the intermediate stand 22; With the inboard of outer stator 31 inside stator 32 that certain space combines with the cylinder 41 of compression assembly 40 of being separated by; Be clipped on the space between outer stator 31 and the inside stator 32 and combine with the piston 42 of compression assembly 40, and the rotor 33 that carries out straight reciprocating motion with piston 42.The inner cylinder of inside stator 32 should directly be pressed in the outer cylinder of cylinder 41, to reduce the lateral length of reciprocal compressor.
Compression assembly 40 comprises: insert the cylinder 41 that is fixed on the anterior frame 21; Combine reciprocating piston 42 in the compression volume P of cylinder 41 with the rotor 33 of reciprocable machine 30; Be arranged at the head end of piston 42, limit the suction valve 43 of suction refrigerant gas by the suction passage F of switch plunger 42; Be arranged on cylinder 41 outlet ports, come the expulsion valve 44 of limit compression gas output by switch compression volume P.
Resonant spring group 50 comprises: be arranged on the side of spring-loaded platform 60 1 sides of piston 42 combinations of the rotor 33 of reciprocable machine 30 and compression assembly 40 and corresponding therewith reciprocable machine 30 or be close to a plurality of anterior resonant spring 51 between intermediate stand 22 1 sides of reciprocable machine 30 sides; With a plurality of rear portions resonant spring 52 that is provided with between the another side of spring-loaded platform 60 and corresponding therewith rear portion frame 23 inner side surfaces.Spring-loaded platform 60 adopts the loop configuration of disc type, anterior resonant spring 51 and rear portion resonant spring 52 can be arranged on same the straight line consistent with the piston length direction, perhaps during plane projection, alternately be arranged with anterior resonant spring 51 and rear portion resonant spring 52.As shown in Figures 2 and 3, herein during side projection, make it form annular, therefore in a plurality of spring-loaded portion 61,62 that outer cylinder has that diffusion protrudes, and a part of spring-loaded portion 61 in each spring-loaded portion 61,62 is crooked backward, with piston be arranged in parallel anterior resonant spring 51 and rear portion resonant spring 52, so that have overlapping interval L between two structures.
And on the arrangement direction that is provided with in the spring-loaded portion 61,62 of anterior resonant spring 51 of supporting and rear portion resonant spring 52 at resonant spring, protrude, to support fixed lobe 61a, the 62a of anterior resonant spring 51 and rear support spring 52.
The working procedure of aforesaid reciprocal compressor in the past is as follows:
After reciprocable machine 30 energising, between outer stator 31 and inside stator 32, produce magnetic flux, rotor 33 and piston 42 are moved along magnetic direction, under the effect of resonant spring group 50, do straight reciprocating motion.Meanwhile, piston 42 is done straight reciprocating motion in cylinder 41 inside, causes pressure difference at the compression volume P of cylinder 41, and absorption refrigeration agent gas is exported after it is compressed to certain pressure.
At this moment, a plurality of anterior resonant springs 51 and rear portion resonant spring 52 are with equidistant arrangement, and make the spring end of front portion and rear portion resonant spring 51,52 symmetrical, so when forwardly reaching Rear springs 51,52 contractions and elongation, the torsion moment that a certain side of can cancelling out each other takes place, thus make rotor 33 and piston 42 carry out stable to-and-fro motion.
But in reciprocal compressor in the past, because of fixed lobe 61a, 62a protrudes from spring-loaded portion 61,62 after the sheet metal processing, so the supporting of each resonant spring 51,52 and moulding difficulty relatively.And, anterior resonant spring 52 and rear portion resonant spring 53 compresses repeatedly and lax process in because the effect of eccentric force has the tendency of rotation, in this process, make fixed lobe 61a, the 62a wearing and tearing of the spring-loaded portion 61,62 that contacts with each resonant spring 52,53, the result causes spring-loaded portion 61,62 fixed position change, each resonant spring 51,52 will break away from when serious, has reduced the reliability of compressor.
Summary of the invention
Technical problem to be solved by this invention provides a kind of resonant spring fixed structure of reciprocal compressor, and the resonant spring of supporting piston is stably moved back and forth, and has both improved the assembling performance, has reduced the loss that wearing and tearing cause again.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of resonant spring fixed structure of reciprocal compressor comprises: be equipped with the stator of a plurality of fixed frames and make the reciprocable machine of rotor of straight reciprocating motion between stator; Be fixed in the driving that is subjected to reciprocable machine, the spring-loaded platform of reciprocating in the axial direction piston side; Be arranged between spring-loaded platform and the corresponding with it frame, induce a plurality of front portions and the rear portion resonant spring of the resonance motion of rotor and piston; Be combined with the spring mountings of supporting front portion and rear portion resonant spring at least one side in spring-loaded platform or frame.
Described spring mountings comprises: the insertion part that is inserted in jack; External diameter is greater than the support of insertion part; For stationary forward resonant spring or rear portion resonant spring and the fixed lobe that protrudes.
On described fixed lobe, form the clip portion that prevents the immobilising device disengaging and on radial direction, expand, and on corresponding with it position, be provided with the inclination section of settling clip portion.
On immobilising device, be provided with the gas flow aperture that can make gas flow when moving back and forth.
On spring-loaded platform that joins with front portion and rear portion resonant spring and at least one side in the frame, be formed with the jack that inserts described insertion part.
On spring-loaded platform that joins with front portion and rear portion resonant spring and at least one side in the frame, be formed with the slot that sink by certain depth that inserts described insertion part.
On jack and slot, possesses the described support of promising arrangement and the placement surface of expanded inner diameter.
Described spring immobilising device has carried out surface treatment in order to form hardened layer on the surface.
Described surface treatment is that the Ni-P clad can is handled.
The resonant spring fixed structure of reciprocal compressor of the present invention, the spring-loaded portion of running through the spring-loaded device is provided with jack, and support anterior resonant spring and rear portion resonant spring being provided with on the surface immobilising device that forms hardened layer on the jack, reduce frictional loss, improved the reliability of product.The spring-loaded platform is when carrying out resonance motion, and internal flow flows by the through hole on the immobilising device, has reduced resistance.Cure process has been carried out on the surface that produces the immobilising device of friction during simultaneously to resonance motion, and therefore with respect to conventional art, working process is simpler.
Description of drawings
Fig. 1 is the profile diagram of the reciprocal compressor internal structure that constitutes of structure in the past.
Fig. 2 is the stereogram of the resonant spring fixed structure among Fig. 1.
Fig. 3 is the part sectioned view of the resonant spring fixed structure among Fig. 1.
Fig. 4 is the profile diagram of the reciprocal compressor internal structure with resonant spring fixed structure of the first embodiment of the present invention.
Fig. 5 is the stereogram of the resonant spring for reciprocating compressor fixed structure among Fig. 4.
Fig. 6 is the sectional drawing of the resonant spring for reciprocating compressor fixed structure among Fig. 4.
Fig. 7 is the sectional drawing of resonant spring fixed structure of the reciprocal compressor of the second embodiment of the present invention.
Fig. 8 is the sectional drawing of resonant spring fixed structure of the reciprocal compressor of the third embodiment of the present invention.
Fig. 9 is the sectional drawing of resonant spring fixed structure of the reciprocal compressor of the fourth embodiment of the present invention.
Among the figure, 160: the spring-loaded platform; 161,162: spring-loaded portion; 161a, 162a: jack; 161b, 162b: placement surface; 161c, 162c: inclination section; 170: immobilising device; 171: the insertion part; 172: support; 173: fixed lobe; 174: through hole.
Embodiment
Be described in further detail below in conjunction with the resonant spring fixed structure of the drawings and specific embodiments reciprocal compressor of the present invention:
In the reciprocal compressor of the resonant spring fixed structure in the first embodiment of the invention, for structure and identical in the past casing 10, frame 20, reciprocable machine 30, compression assembly 40 omission explanations, structure and device are with reference to Fig. 1 explanation.
As shown in Figure 4, the reciprocal compressor of the resonant spring fixed structure of first embodiment of the invention comprises: yielding support is arranged on the frame 20 of casing 10 inside; Be fixed on the frame 20, produce the reciprocable machine 30 of linear drives power; Compression assembly 40 by the compression working fluid of frame 20 supporting; Be arranged on the resonant spring group 50 that the piston 42 of inducing rotor 33 and compression assembly 40 between the rotor 33 of frame 20 and reciprocable machine carries out resonance motion together.
Compression assembly 40 comprises: insert the cylinder 41 that is fixed on the anterior frame 21; Combine reciprocating piston 42 in the compression volume P of cylinder 41 with the rotor 33 of reciprocable machine 30; Be arranged at the head end of piston 42, limit the suction valve 43 of suction refrigerant gas by the suction passage F of switch plunger 42; Be arranged on cylinder 41 outlet ports, come the expulsion valve 44 of limit compression gas output to constitute by switch compression volume P.
Resonant spring group 50 comprises: be arranged on spring-loaded platform 160 1 sides that combine with the piston 42 of the rotor 33 of reciprocable machine 30 and compression assembly 40, therewith the side of Dui Ying reciprocable machine 30 or be close to a plurality of anterior resonant spring 51 between intermediate stand 22 1 sides of reciprocable machine 30 sides; With a plurality of rear portions resonant spring 52 that is provided with between the another side of spring-loaded platform 160 and corresponding therewith rear portion frame 23 inner side surfaces.
Described spring-loaded platform such as Fig. 5 and shown in Figure 6, adopt the loop configuration of disc type, the a plurality of spring-loaded portion that has on its outer cylinder that diffusion protrudes, and each spring-loaded portion comprises front springs support 161 that support anterior resonant spring 51 and the Rear springs support 162 that supports rear portion resonant spring 52.In a plurality of spring-loaded portion that the diffusion of the outer cylinder of spring-loaded platform 160 is protruded, anterior support 161 is crooked backward to be arranged in parallel with the piston movement direction, so that have overlapping interval between anterior resonant spring 51 and the rear support spring 52.
And, in the anterior frame 21 of supporting front portion and rear portion resonant spring 51,52, be provided with jack 22a, 23a, 161a, the 162a of the insertion part 171 of inserting spring immobilising device 170 in rear portion frame 23 and the spring-loaded portion 161,162 respectively.Can utilize the insertion groove that falls into into certain depth to substitute jack 22a, 23a, 161a, 162a.
Described spring immobilising device 170 comprises: be inserted in jack 22a, 23a, 161a, the insertion part 171 of 162a; External diameter is greater than insertion part 171, and by the support 172 of anterior frame 22 and rear portion frame 23 and 160 supportings of spring-loaded platform; For stationary forward resonant spring 51 or rear portion resonant spring 52 and the fixed lobe 173 that protrudes.
As above the course of action of the reciprocal compressor of Gou Chenging is with identical in the past, regard to down offset anterior resonant spring 51 and rear portion resonant spring 52 shrinks and the process of elongation in to a certain lateral deviation from the time torsion moment that takes place process be described in detail:
The outer cylinder of spring immobilising device 170 carries out the surface treatment of Ni-P etc. in order to form hardened layer, the frictional loss when having reduced resonance.And, after being provided with jack 161a, 162a in the spring-loaded portion 161,162 of spring-loaded platform 160, insert spring immobilising device 170, so that fixed lobe 173 supporting front portion and rear portion resonant springs 51,52 are made fairly simple.
The resonant spring fixed structure of the reciprocal compressor of second embodiment of the invention as shown in Figure 7, on a certain side of jack 22a, 23a, 161a, 162a, be provided with placement surface 22b, 23b, 161b, 162b that internal diameter increases, and on jack 22a, 23a, 161a, 162a, inserted the spring immobilising device 170 that supports anterior resonant spring 51 and rear portion resonant spring 52, it is last fixing to make support 172 be placed in placement surface 22a, 23a, 161b, 162b.
The resonant spring fixed structure of the reciprocal compressor of the third embodiment of the present invention as shown in Figure 8, on the length direction at the center of spring immobilising device 170, be provided with through hole 174, when spring-loaded platform 160 when resonant spring is reciprocating, inner fluid flows along through hole, reduces friction.
The resonant spring fixed structure of the reciprocal compressor of the fourth embodiment of the present invention as shown in Figure 9, on the length direction at the center of spring immobilising device 170, be provided with through hole 174, and on the another side of jack 161a, 162a that placement surface 161b, 162b are set, be provided with inclination section 161c, 162c.Behind the insertion part 171 of inserting immobilising device 170 on jack 161a, the 162a, the end of insertion part 171 is carried out calking or fringing forms clip portion 175, with the immobilising device 170 of the spring-loaded platform 160 that fixedly installed inclination section 161c, 162c.And, on the intermediate stand 22 of the immobilising device 170 of the opposite side of anterior resonant spring 51 of fixed bearing and rear portion resonant spring 52 and rear portion frame 23, be provided with inclination section (not shown) equally, and be provided with clip portion 175 on immobilising device 170, so that immobilising device 170 can be fixed on intermediate stand 22 and the rear portion frame 23.
By top embodiment as can be known, the resonant spring for reciprocating compressor fixed structure of the present invention's design, the spring-loaded portion 161,162 of running through spring-loaded platform 160 is provided with jack 161a, 162a, and on jack 161a, 162a, be provided with the immobilising device 170 that the surface has formed hardened layer, support each resonant spring, the working process of surface treatment etc. is oversimplified, and reduced frictional loss.

Claims (9)

1, a kind of resonant spring fixed structure of reciprocal compressor comprises: be equipped with the stator of a plurality of fixed frames and make the reciprocable machine of rotor of straight reciprocating motion between stator; Be fixed in the driving that is subjected to reciprocable machine, the spring-loaded platform of reciprocating in the axial direction piston side; Be arranged between spring-loaded platform and the corresponding with it frame, induce a plurality of front portions and the rear portion resonant spring of the resonance motion of rotor and piston; It is characterized in that being combined with at least one side in spring-loaded platform or frame the spring mountings of supporting front portion and rear portion resonant spring.
2, the resonant spring fixed structure of reciprocal compressor according to claim 1 is characterized in that described spring mountings comprises: the insertion part that is inserted in jack; External diameter is greater than the support of insertion part; For stationary forward resonant spring or rear portion resonant spring and the fixed lobe that protrudes.
3, the resonant spring fixed structure of reciprocal compressor according to claim 2, it is characterized in that on described fixed lobe, forming the clip portion that prevents the immobilising device disengaging and on radial direction, expand, and on corresponding with it position, be provided with the inclination section of settling clip portion.
4, the resonant spring fixed structure of reciprocal compressor according to claim 1 and 2 is characterized in that being provided with the gas flow aperture that can make gas flow when moving back and forth on immobilising device.
5, the resonant spring fixed structure of reciprocal compressor according to claim 1 is characterized in that being formed with the jack that inserts described insertion part on spring-loaded platform that joins with front portion and rear portion resonant spring and at least one side in the frame.
6, the resonant spring fixed structure of reciprocal compressor according to claim 1 is characterized in that being formed with the slot that sink by certain depth that inserts described insertion part on spring-loaded platform that joins with front portion and rear portion resonant spring and at least one side in the frame.
7,, it is characterized in that on jack and slot, possessing the described support of promising arrangement and the placement surface of expanded inner diameter according to the resonant spring fixed structure of claim 5 or 6 described reciprocal compressors.
8, the resonant spring fixed structure of reciprocal compressor according to claim 1 is characterized in that described spring immobilising device has carried out surface treatment in order to form hardened layer on the surface.
9, the resonant spring fixed structure of reciprocal compressor according to claim 8 is characterized in that described surface treatment is that the Ni-P clad can is handled.
CNB031298141A 2003-05-20 2003-05-20 Resonant spring fixing structure for reciprocating compressor Expired - Fee Related CN100359171C (en)

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Application Number Priority Date Filing Date Title
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CN1548727A true CN1548727A (en) 2004-11-24
CN100359171C CN100359171C (en) 2008-01-02

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101718268B (en) * 2008-10-09 2012-09-05 思科普有限责任公司 Refrigerating agent compressor arrangement
CN102695877A (en) * 2010-01-05 2012-09-26 惠而浦股份有限公司 Mounting arrangement for a resonant spring in a linear motor compressor
CN105201775A (en) * 2014-06-30 2015-12-30 青岛海尔智能技术研发有限公司 Linear compressor resonator system and linear compressor
KR20170119592A (en) * 2016-04-19 2017-10-27 엘지전자 주식회사 Linear compressor
KR20170124899A (en) * 2016-05-03 2017-11-13 엘지전자 주식회사 linear compressor
US11512693B2 (en) 2020-06-17 2022-11-29 Lg Electronics Inc. Linear compressor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218369A (en) * 1984-05-08 1984-12-08 Matsushita Refrig Co Vibrating type compressor
JP2000291545A (en) * 1999-04-06 2000-10-17 Matsushita Refrig Co Ltd Compressor and pump
KR100304587B1 (en) * 1999-08-19 2001-09-24 구자홍 Linear compressor
JP2001200390A (en) * 1999-11-12 2001-07-24 Osaka Gas Co Ltd Member for compressor
JP2001234858A (en) * 1999-12-13 2001-08-31 Sumitomo Heavy Ind Ltd Gas compressor
KR100332816B1 (en) * 2000-05-18 2002-04-19 구자홍 Structure for supporting spring of linear compressor
DE60224555T2 (en) * 2001-11-08 2009-03-05 Lg Electronics Inc. WEAR-RESISTANT CONSTRUCTION FOR PISTON FLOW COMPRESSORS

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101718268B (en) * 2008-10-09 2012-09-05 思科普有限责任公司 Refrigerating agent compressor arrangement
CN102695877A (en) * 2010-01-05 2012-09-26 惠而浦股份有限公司 Mounting arrangement for a resonant spring in a linear motor compressor
CN102695877B (en) * 2010-01-05 2015-09-16 惠而浦股份有限公司 Linear motor compressor
CN105201775A (en) * 2014-06-30 2015-12-30 青岛海尔智能技术研发有限公司 Linear compressor resonator system and linear compressor
KR102238332B1 (en) * 2016-04-19 2021-04-09 엘지전자 주식회사 Linear compressor
KR20170119592A (en) * 2016-04-19 2017-10-27 엘지전자 주식회사 Linear compressor
US11773833B2 (en) 2016-04-19 2023-10-03 Lg Electronics Inc. Linear compressor
KR20170124899A (en) * 2016-05-03 2017-11-13 엘지전자 주식회사 linear compressor
CN109072892A (en) * 2016-05-03 2018-12-21 Lg电子株式会社 Linearkompressor
CN109072892B (en) * 2016-05-03 2020-09-29 Lg电子株式会社 Linear compressor
US10928109B2 (en) 2016-05-03 2021-02-23 Lg Electronics Inc. Linear compressor
KR102238339B1 (en) * 2016-05-03 2021-04-09 엘지전자 주식회사 linear compressor
US11512693B2 (en) 2020-06-17 2022-11-29 Lg Electronics Inc. Linear compressor

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Granted publication date: 20080102