CN106150970B - Linear compressor - Google Patents
Linear compressor Download PDFInfo
- Publication number
- CN106150970B CN106150970B CN201510146687.4A CN201510146687A CN106150970B CN 106150970 B CN106150970 B CN 106150970B CN 201510146687 A CN201510146687 A CN 201510146687A CN 106150970 B CN106150970 B CN 106150970B
- Authority
- CN
- China
- Prior art keywords
- piston
- spring
- piston rod
- rotor
- linear compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003825 pressing Methods 0.000 claims abstract description 37
- 239000004593 Epoxy Substances 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000003584 silencer Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Landscapes
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention provides a linear compressor, which comprises a shell, a rotor, a stator, an air cylinder, a piston, a spring and a spring pressing plate, wherein the rotor, the stator, the air cylinder, the piston, the spring and the spring pressing plate are arranged in the shell, the stator forms a magnetic field space, the rotor is provided with a magnet, the magnet is inserted into the magnetic field space, the spring pressing plate and the air cylinder are respectively fixed on two sides of the stator, the rotor is positioned between the spring pressing plate and the stator, the spring is respectively arranged between the rotor and the spring pressing plate as well as between the stator and the stator, the piston comprises a piston head and a piston rod which are connected together, the piston head is arranged in the air cylinder in a sliding manner, the piston rod is fixedly connected with the rotor, a support sleeve is arranged on the spring pressing. The piston is supported by the air cylinder and the supporting sleeve on two sides, lateral offset force of the piston caused by weight of the rotor is avoided, and reliability of the linear compressor is improved.
Description
Technical Field
The invention relates to a compressor, in particular to a linear compressor.
Background
At present, the compressors used in the refrigeration equipment are of a rotary type and a linear type, as shown in fig. 1, the linear compressor in the prior art generally comprises a shell 1, a stator 2, a coil 3, a mover 4, a piston, a cylinder 6 and other components; wherein, the mover 4 is provided with a magnet 41, the magnet 41 is inserted into a magnetic field space formed by the outer stator 2, the stator 2 is provided with a coil 3 in the middle, one end of the piston is connected to the mover 4, and the other end of the piston is inserted into an inner cavity of the cylinder 6. In the use process, the coil 3 is electrified to generate an alternating magnetic field to drive the mover 4 to carry the piston to reciprocate at a high frequency. The height coaxiality of the piston and the cylinder 6 must be ensured in the assembly or processing due to the limitation of the operation principle of the linear compressor; and the piston and the cylinder 6 are easy to have the phenomenon of non-coaxial under the influence of processing and assembling precision. In the prior art, the piston is usually formed by casting a high-wear-resistance high-strength material, but in the using process, if the piston and the cylinder 6 are assembled to be non-coaxial, the piston is subjected to lateral force and generates friction and loss, and the friction causes a large amount of heat to further damage the piston and the cylinder 6, so that the reliability of the linear compressor in the prior art is lower.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a linear compressor, solve the lower defect of reliability of linear compressor among the prior art, realize improving linear compressor's reliability.
The invention provides a technical scheme that the linear compressor comprises a shell, a rotor, a stator, a cylinder, a piston, a spring and a spring pressing plate, wherein the rotor, the stator, the cylinder, the piston, the spring and the spring pressing plate are arranged in the shell, the stator forms a magnetic field space, the rotor is provided with a magnet, the magnet is inserted into the magnetic field space, the spring pressing plate and the cylinder are respectively fixed on two sides of the stator, the rotor is positioned between the spring pressing plate and the stator, the spring is respectively arranged between the rotor and the spring pressing plate and between the rotor and the stator, the piston comprises a piston head and a piston rod which are connected together, the piston head is arranged in the cylinder in a sliding mode, the piston rod is fixedly connected with the rotor, a supporting sleeve is arranged on the spring pressing plate, and the free end portion of the.
Furthermore, the piston rod is made of engineering plastics.
Furthermore, the piston rod is made of epoxy glass fiber.
Furthermore, a wear-resistant layer is formed at the contact part of the piston rod and the support sleeve or a wear-resistant sleeve is arranged at the contact part of the piston rod and the support sleeve.
Further, the piston head and the piston rod are of a unitary construction.
Furthermore, the rotor and the piston rod are of an integral structure.
Furthermore, a plurality of positioning protrusions are formed on the spring pressing plate in a stamping mode, the positioning protrusions surround the supporting sleeve, and the end portions of the springs are sleeved on the corresponding positioning protrusions.
Furthermore, the spring pressing plate and the supporting sleeve are of an integral structure.
Furthermore, a mounting hole is formed in the spring pressing plate, and the support sleeve is inserted into the mounting hole; the support sleeve is fixed on the spring pressure plate through a bolt, or the support sleeve is fixed on the spring pressure plate and an elastic pad is arranged between the support sleeve and the spring pressure plate, or the support sleeve is made of elastic materials and fixed on the spring pressure plate.
Furthermore, the end part of the piston rod extending out of the support sleeve is also connected with a silencer.
According to the linear compressor provided by the invention, the supporting sleeve is formed on the spring pressing plate, one end of the piston supports the end part of the piston rod through the supporting sleeve, and the piston head of the piston is supported by the cylinder, so that the gravity center generated by the rotor falls at the middle position of the piston rod, the pistons are supported by the cylinder and the supporting sleeve at two sides, the lateral offset force of the piston caused by the weight of the rotor is avoided, meanwhile, the contact area of the supporting sleeve and the piston rod is larger, the piston rod can be better guided through the supporting sleeve, the coaxiality of the piston and the cylinder is improved, the lateral offset force of the piston is further reduced, the friction generated between the piston and the cylinder is reduced, and the reliability of the linear compressor is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a sectional view of a prior art linear compressor;
FIG. 2 is a sectional view of an embodiment of a linear compressor according to the present invention;
FIG. 3 is a schematic structural diagram of a spring pressing plate in an embodiment of the linear compressor according to the present invention;
FIG. 4 is a first cross-sectional view of a spring platen in an embodiment of a linear compressor according to the present invention;
FIG. 5 is a second cross-sectional view of the spring platen in an embodiment of the linear compressor of the present invention;
fig. 6 is a third sectional view of the spring holder plate in the embodiment of the linear compressor according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 2 to 3, the linear compressor of the present embodiment includes a housing 1, and a mover 2, a stator 3, a cylinder 4, a piston, a spring 6 and a spring pressing plate 7 which are disposed in the housing 1, wherein the stator 3 forms a magnetic field space (not shown), the mover 2 is provided with a magnet 21, the magnet 21 is inserted in the magnetic field space, the spring pressing plate 7 and the cylinder 4 are respectively fixed on both sides of the stator 3, the mover 2 is located between the spring pressing plate 7 and the stator 3, the spring 6 is respectively disposed between the mover 2 and the spring pressing plate 7 and the stator 3, the piston includes a piston head 51 and a piston rod 52 which are connected together, the piston head 51 is slidably disposed in the cylinder 4, the piston rod 52 is fixedly connected with the mover 2, a support sleeve 71 is formed at the middle of the spring pressing plate 7, the free end of the piston rod 52 is slidably disposed in the support sleeve 71.
Specifically, the piston in the linear compressor of the present embodiment supports both ends thereof by the cylinder 4 and the support sleeve 71, respectively, the piston head 51 is slidably disposed in the cylinder 4, the piston head 51 is supported by the cylinder 4, the free end of the piston rod 52 is slidably disposed in the supporting sleeve 71, the supporting sleeve 71 supports the free end of the piston rod 52, the gravity center of the mover 2 connected to the piston rod 52 is located at the middle of the piston rod 52, so as to avoid the piston from generating a large lateral bias force due to the gravity of the mover 2, and at the same time, the support sleeve 71 can act as a guide for the piston rod 52 during assembly and use, and, during assembly, can ensure higher coaxiality between the piston and the cylinder 4, reduce the lateral offset force generated by the piston, meanwhile, the coaxiality between the piston and the cylinder 4 can be adjusted by operators more conveniently, and the assembling efficiency is improved. Preferably, the end of the piston rod 52 extending out of the support sleeve 71 is further connected with a silencer 8. Specifically, because the piston rod 52 is directly connected with the muffler 8, the support sleeve 71 can simultaneously bear the weight generated by the muffler 8, and the piston is prevented from generating lateral offset force due to the gravity of the muffler 8; in addition, the silencer 8 is directly connected to the piston rod 52 without using other auxiliary connecting parts, so that the operation and assembly process is simplified, and the assembly efficiency is improved.
The piston in this embodiment may be an integral structure, or the piston head 51 and the piston rod 52 may be separate structures, for example: the piston head 51 and the piston rod 52 are fixed together by bonding, bolting, or the like. The mover 2 and the piston rod 51 may be integrally formed, or may be separately formed, and the mover 2 and the piston rod 51 may be fixed to each other by bonding, bolting, or the like.
Further, because the support sleeve 71 supporting the piston rod 52 is far away from the cylinder 4 and the stator 3, in the operation process, the dimension of the support sleeve 71 is low, and in order to reduce the manufacturing cost, the piston rod 52 in this embodiment can be made of a light aluminum alloy material and a high-performance engineering plastic, for example: the piston rod 52 may be made of PPS, PES, PC, PBT, or a carbon fiber-glass composite material thereof, including a thermosetting plastic composite material such as epoxy glass fiber and epoxy carbon fiber; the preferred epoxy glass fiber material among the above-mentioned materials, it is the non-magnetic material, the thermosetting shaping, the performance is stable, have high-strength wear-resisting property, the piston rod 52 uses the epoxy glass fiber to make, the preparation can be that the epoxy of glass fiber protofilament twines the shaping, can also be that the epoxy of glass fiber weaving weaves rolls the shaping, the production method is simple and easy, the production efficiency is high, the cost is reduced by a wide margin, and in order to increase the wearability, can add the dispersed PTRE and form the wearing course (not shown) in the position that the piston rod 52 contacts with said support cover 71 in order to improve the wearability, or, the position that the said piston rod 52 contacts with said support cover 71 has wear-.
Furthermore, a plurality of positioning protrusions 72 are stamped and formed on the spring pressing plate 7, the positioning protrusions 72 surround the supporting sleeve 71, and the ends of the spring 6 are sleeved on the corresponding positioning protrusions 72. Specifically, the spring 6 can be fixed by the positioning protrusion 72 formed by press molding on the spring pressing plate 7, so that the spring cannot deviate, the phenomenon that the spring 6 deviates in the continuous compression process is prevented to the maximum, and the adverse phenomenon caused by the spring 6 is controlled fundamentally. As shown in fig. 3, the spring pressing plate 7 and the supporting sleeve 71 may be an integral structure; meanwhile, the spring pressing plate 7 and the support sleeve 71 can also be of a split structure, specifically, a mounting hole (not shown) is formed in the spring pressing plate 7, and the support sleeve 71 is inserted into the mounting hole; specifically, as shown in fig. 4, the support sleeve 71 is directly fixed on the spring pressing plate 7 by bolts 711, or, as shown in fig. 5, the support sleeve 71 is fixed on the spring pressing plate 7 by bolts 711 and an elastic pad 712 is disposed between the support sleeve and the spring pressing plate 7, or, as shown in fig. 6, the support sleeve 71 is made of an elastic material and is fixed on the spring pressing plate 7 by bolts 711. In the use process of the support sleeve 71 in fig. 5 and 6, a small offset can occur according to the force applied by the piston rod 52, so that a flexible connection is formed between the support sleeve 71 and the piston rod 52, the piston rod 52 can automatically find an equilibrium position, and the lateral offset force is reduced to more effectively reduce the friction.
This embodiment linear compressor, support the cover through forming on spring plate, piston one end is supported by supporting the tip of cover to the piston rod, and the piston head of piston is supported by the cylinder, make the gravity center that the active cell produced fall on the intermediate position of piston rod like this, support the piston in both sides through cylinder and supporting sleeve, avoided active cell weight to cause the piston to take place the lateral force, and simultaneously, the area of contact of support cover and piston rod is great, can lead to the piston rod through supporting the cover better, improve the axiality of piston and cylinder, further the lateral force of piston that reduces, alleviate the friction that produces between piston and the cylinder, improve linear compressor's reliability.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A linear compressor comprises a shell, a rotor, a stator, a cylinder, a piston, a spring and a spring pressing plate, wherein the rotor, the stator, the cylinder, the piston, the spring and the spring pressing plate are arranged in the shell, the stator forms a magnetic field space, the rotor is provided with a magnet, the magnet is inserted into the magnetic field space, the spring pressing plate and the cylinder are respectively fixed on two sides of the stator, the rotor is positioned between the spring pressing plate and the stator, the spring is respectively arranged between the rotor and the spring pressing plate and between the rotor and the stator, the piston comprises a piston head and a piston rod which are connected together, the piston head is arranged in the cylinder in a sliding manner, the piston rod is fixedly connected with the rotor, the linear compressor is characterized in that a supporting sleeve is arranged on the spring pressing plate, the free end part of the piston rod is arranged in the supporting sleeve in a sliding, the gravity center of the rotor connected to the piston rod is located in the middle of the piston rod.
2. The linear compressor of claim 1, wherein the piston rod is made of engineering plastic.
3. The linear compressor of claim 2, wherein the piston rod is made of epoxy fiberglass.
4. The linear compressor of claim 1, wherein a wear resistant layer is formed or a wear resistant sleeve is provided at a portion where the piston rod contacts the support sleeve.
5. The linear compressor of claim 1, wherein the piston head and the piston rod are a unitary structure.
6. The linear compressor of claim 1, wherein the mover and the piston rod are of a unitary structure.
7. The linear compressor of claim 1, wherein the spring pressure plate is provided with a plurality of positioning protrusions, the positioning protrusions surround the support sleeve, and the ends of the springs are sleeved on the corresponding positioning protrusions.
8. The linear compressor of claim 1, wherein the spring platen and the support sleeve are of a unitary construction.
9. The linear compressor of claim 1, wherein the spring pressure plate is provided with a mounting hole, and the support sleeve is inserted into the mounting hole; the support sleeve is fixed on the spring pressure plate through a bolt, or the support sleeve is fixed on the spring pressure plate and an elastic pad is arranged between the support sleeve and the spring pressure plate, or the support sleeve is made of elastic materials and fixed on the spring pressure plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146687.4A CN106150970B (en) | 2015-03-31 | 2015-03-31 | Linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510146687.4A CN106150970B (en) | 2015-03-31 | 2015-03-31 | Linear compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106150970A CN106150970A (en) | 2016-11-23 |
| CN106150970B true CN106150970B (en) | 2020-08-07 |
Family
ID=57337180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510146687.4A Active CN106150970B (en) | 2015-03-31 | 2015-03-31 | Linear compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106150970B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704144A (en) * | 2017-02-28 | 2017-05-24 | 青岛海尔智能技术研发有限公司 | Single-cylinder type linear compressor and control method thereof |
| CN107013435B (en) * | 2017-05-23 | 2018-12-11 | 青岛中公联信息科技有限公司 | Linear compressor and its control method |
| CN107023453B (en) * | 2017-05-23 | 2019-01-04 | 青岛中公联信息科技有限公司 | Linear compressor and refrigeration system |
| CN109931243A (en) * | 2017-12-15 | 2019-06-25 | 青岛海尔智能技术研发有限公司 | The piston component and linear compressor of linear compressor |
| CN109931242B (en) * | 2017-12-15 | 2020-12-04 | 青岛海尔智能技术研发有限公司 | Piston assembly of linear compressor and linear compressor |
| CN109931241A (en) * | 2017-12-15 | 2019-06-25 | 青岛海尔智能技术研发有限公司 | The piston component and linear compressor of linear compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5352101A (en) * | 1992-10-05 | 1994-10-04 | Aura Systems, Inc. | Electromagnetically actuated compressor valve |
| JP2003028226A (en) * | 2001-07-11 | 2003-01-29 | Hitachi Unisia Automotive Ltd | Friction generator for hydraulic shock absorber |
| CN101205888A (en) * | 2006-12-20 | 2008-06-25 | 乐金电子(天津)电器有限公司 | Supporting apparatus for reciprocating compressor |
| CN101835982A (en) * | 2007-10-24 | 2010-09-15 | Lg电子株式会社 | Linear compressor |
| CN204610186U (en) * | 2015-03-31 | 2015-09-02 | 青岛海尔智能技术研发有限公司 | Linear compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100575829B1 (en) * | 2003-12-31 | 2006-05-03 | 엘지전자 주식회사 | Suction-muffler assembly structure for reciprocating compressor |
-
2015
- 2015-03-31 CN CN201510146687.4A patent/CN106150970B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5352101A (en) * | 1992-10-05 | 1994-10-04 | Aura Systems, Inc. | Electromagnetically actuated compressor valve |
| JP2003028226A (en) * | 2001-07-11 | 2003-01-29 | Hitachi Unisia Automotive Ltd | Friction generator for hydraulic shock absorber |
| CN101205888A (en) * | 2006-12-20 | 2008-06-25 | 乐金电子(天津)电器有限公司 | Supporting apparatus for reciprocating compressor |
| CN101835982A (en) * | 2007-10-24 | 2010-09-15 | Lg电子株式会社 | Linear compressor |
| CN204610186U (en) * | 2015-03-31 | 2015-09-02 | 青岛海尔智能技术研发有限公司 | Linear compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106150970A (en) | 2016-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106150970B (en) | Linear compressor | |
| KR100304587B1 (en) | Linear compressor | |
| KR101397083B1 (en) | Reciprocating motor and reciprocating compressor having the same | |
| US20080213109A1 (en) | Linear Compressor | |
| KR101386486B1 (en) | Reciprocating compressor | |
| KR102244373B1 (en) | Linear compressor and linear motor | |
| US10903732B2 (en) | Moveable core-type reciprocating motor and reciprocating compressor having a moveable core-type reciprocating motor | |
| WO2018090813A1 (en) | Permanent magnet linear double-cylinder compressor | |
| CN216407096U (en) | Split type cold head active cell structure | |
| CN103967748A (en) | Linear compressor | |
| CN105119458A (en) | Linear oscillation motor supported by flexible spring bearing | |
| US10989183B2 (en) | Reciprocating motor and reciprocating compressor having a reciprocating motor | |
| CN106150969A (en) | Straight-line compressor | |
| CN205841140U (en) | Linear compressor | |
| KR102244362B1 (en) | Linear compressor and linear motor | |
| CN203335349U (en) | Non-magnetic high manganese steel balance weight for sealed compressor | |
| CN205841131U (en) | Linearkompressor | |
| CN204610186U (en) | Linear compressor | |
| CN218347521U (en) | Reciprocating confronting compressing device | |
| CN105351168A (en) | Piston structure of linear compressor and linear compressor | |
| JP2012102608A (en) | Hermetic compressor | |
| CN104005931B (en) | Linearkompressor | |
| KR102122097B1 (en) | A linear compressor | |
| CN218347520U (en) | Reciprocating type power structure | |
| CN204493542U (en) | Spring support, mover assembly, pump body structure and compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. Patentee before: Qingdao Haier Joint Stock Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |