CN104234975B - Linear compressor and its cylinder fixing structure - Google Patents

Linear compressor and its cylinder fixing structure Download PDF

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Publication number
CN104234975B
CN104234975B CN201310249109.4A CN201310249109A CN104234975B CN 104234975 B CN104234975 B CN 104234975B CN 201310249109 A CN201310249109 A CN 201310249109A CN 104234975 B CN104234975 B CN 104234975B
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CN
China
Prior art keywords
cylinder
flange
linear compressor
annular groove
fixing
Prior art date
Application number
CN201310249109.4A
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Chinese (zh)
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CN104234975A (en
Inventor
赵志强
李衡国
闫赛娜
宋斌
许升
李标
Original Assignee
青岛海尔智能技术研发有限公司
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Priority to CN201310249109.4A priority Critical patent/CN104234975B/en
Publication of CN104234975A publication Critical patent/CN104234975A/en
Application granted granted Critical
Publication of CN104234975B publication Critical patent/CN104234975B/en

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Abstract

The invention discloses a kind of linear compressor and its cylinder fixing structure, the rear end of cylinder is fixed on forward flange.Linear compressor of the present invention, cylinder rear end are placed in the annular groove of forward flange, and setting in this way can be ensured that the alignment of cylinder and entire forward flange, and then ensure the alignment of cylinder and entire linear compressor, ensure that piston and the very high alignment of cylinder.So that high-frequency reciprocating is moved to cylinder without the generation for wiping phenomena such as hanging, avoiding cylinder wear, card cylinder piston in the cylinder.

Description

Linear compressor and its cylinder fixing structure

Technical field

The present invention relates to a kind of Linearkompressors, refer in particular to the fixed structure of Linearkompressor.

Background technology

Linearkompressor needs refrigerant being sucked into cylinder, and makes piston by using the linear driving force of linear electric machine Linear reciprocal movement is carried out in cylinder and carrys out compression refrigerant, then discharges the refrigerant of compressive state.Since Linearkompressor is being pressed Contracting cellular construction is generally made of cylinder piston, and high-frequency reciprocating movement carries out compression refrigerant, piston and compression to piston in the cylinder High pressure refrigerant power all is generated to cylinder, cylinder is made to move in the axial direction or lateral deviation, cylinder wear or even report can be caused in this way The problems such as useless.For this problem is avoided to generate, the prior art generally takes method before the main body frame of cylinder and linear compressor Blue integral production, to avoid cylinder displacement activity the problem of, it is but complicated, it is of high cost.Using cylinder, forward flange split Setting, but after cylinder makes, cylinder is positioned in the mold of forward flange, forward flange injection cylinder is integrally formed, to keep away Exempt from the displacement activity problem of cylinder, but complex process, it is of high cost.

As depicted in figs. 1 and 2, it is one of Linearkompressor structure of the prior art, there is forward flange 11 including one With columnar cylinder 12, i.e., entire forward flange 11 and cylinder 12 are integrally formed, it can be ensured that cylinder 12 is in the height of piston 14 It, can not under the interaction of fast high-frequency reciprocating movement and under the action of very big pressure that when compressed gas generates cylinder 12 Position movement occurs, it especially can be to avoid along the axial lateral deviation of cylinder 12.It is the disadvantage is that, 11 frame of cylinder 12 and forward flange Frame must use a kind of material, and modular construction is complicated, making it is very difficult, manufacture difficulty, batch production is difficult.

As shown in figure 3, for another linear compressor cylinder structure in the prior art, including an individual cylinder 22, Then forward flange 21 and cylinder 22 are integrally formed cylinder 22 and forward flange 21, it can be ensured that cylinder 22 exists by in-mould injection Under the interaction that the high-speed high frequency of piston 24 moves back and forth and the effect of very big pressure that when compressed gas generates cylinder 22 Under, position movement can not occur, it especially can be to avoid along the axial lateral deviation of cylinder 22.The defects of this structure is, After cylinder makes, 21 frame of forward flange is molded on the basis of cylinder 22, is integrally formed by injection, manufacture craft It is required that it is high, complex procedures are manufactured, production cost is high, low production efficiency.

In the prior art, cylinder 22 is long cylinder, and the front end of cylinder 22 is connect with forward flange 21.

Invention content

In view of this, the technical problem to be solved in the present invention is to provide a kind of cylinder fixing structure of linear compressor, It is simple in structure, cylinder is avoided to be subjected to displacement.

In order to solve the above technical problems, the technical proposal of the invention is realized in this way:A kind of cylinder fixing structure, including Cylinder and forward flange, the rear end of cylinder are fixed on forward flange.

Further, the forward flange is connect with the cylinder by interference fit type.

Further, annular groove is offered in the inner wall of the forward flange, the rear end of the cylinder is connected to annular groove It is interior.

Further, one end of the annular groove is aligned with the side wall of forward flange.

Further, the slot bottom of the annular groove is a ring-shaped platform, and the rear end of the cylinder is pressed on the ring-shaped platform On.

Further, the front end of the cylinder offers the clamping boss of an annular, which is connected in cylinder head.

Further, the outer rim of the cylinder head is fixed on by being spirally connected on the forward flange.

Further, it is equipped with retainer plate between the bottom of the clamping outside the boss and cylinder head.

Further, the cylinder and forward flange for unlike material and are separately set.

Another technical solution is:A kind of linear compressor, including above-mentioned cylinder fixing structure.

The technique effect that the present invention reaches is as follows:

1st, linear compressor of the present invention, cylinder rear end are placed in the annular groove of forward flange, and setting can be true in this way Protect the alignment of cylinder and entire forward flange, and then ensure the alignment of cylinder and entire linear compressor, ensure that piston and The very high alignment of cylinder so that cylinder is hung in high-frequency reciprocating movement without wiping to piston in the cylinder, avoids cylinder that abrasion, card occurs Phenomena such as cylinder.

2nd, the cylinder fixing structure of linear compressor of the present invention equipped with annular retainer plate and cylinder head, and passes through bolt Cylinder head is fastened on forward flange.Cylinder head is fixed circle, retainer plate compression cylinder, so that cylinder-pressing is in preceding method Lan Shang under the action of fastening force, ensure that movement of the cylinder in axial or lateral non-displacement, improve cylinder reliability.

3rd, the mode of interference fit may be used in the cylinder fixing structure of linear compressor of the present invention, forward flange and cylinder, Cylinder is by interference fit into the annular groove of forward flange, it is ensured that cylinder axial or lateral non-displacement movement, Improve cylinder reliability.

4th, the cylinder fixing structure of linear compressor of the present invention, cylinder are separately set with forward flange, using unlike material into Row processing, reduces difficulty of processing, and installation method is simple and convenient, reduces manufacture craft difficulty, improves production efficiency, and can drop Low production cost.

Description of the drawings

Fig. 1 is linear compressor structure diagram in the prior art;

Fig. 2 is cylinder fixing structure sectional view in Fig. 1;

Fig. 3 is the cylinder fixing structure schematic diagram of linear compressor in the prior art;

Fig. 4 is the cylinder fixing structure schematic diagram of linear compressor of the present invention;

Fig. 5 is the close-up schematic view of Fig. 4.

Specific embodiment

As shown in Figure 4 and Figure 5, for linear compressor of the present invention and its cylinder fixing structure, including cylinder 2 and forward flange 1, Piston moves back and forth in cylinder 2, and annular groove 7 is offered on forward flange 1, the structure of similar sedimentation hole.Due to this implementation In example, cylinder 2 is cylinder of losing heart, and positioned at the side of inner stator, the rear end of cylinder 2 is fixed on forward flange 1, is different from the prior art The front end of middle cylinder is attached with forward flange, and forward flange 1 is connect with cylinder 2 by interference fit type.In the present embodiment, The inner wall of forward flange 1 offers annular groove 7, and the rear end of cylinder 2 is connected in annular groove 7.One end of annular groove 7 is with before The side wall alignment of flange 1, the slot bottom of annular groove 7 is ring-shaped platform 8, and centre offers the through-hole for wearing piston, cylinder 2 Rear end be pressed on the ring-shaped platform 8.The front end of cylinder 2 offers the clamping boss 9 of annular, which is connected to In cylinder head 3, the outer rim of cylinder head 3 is fixed on by being spirally connected on forward flange 1.Be clamped the outside of boss 9 bottom and cylinder head 3 it Between be equipped with retainer plate 6, for sealing fixation.

Forward flange 1 and cylinder 2 are separately set using unlike material, such as cylinder 2 is wear-resisting using cast iron, steel and aluminium alloy Materials with High Strength makes, and the making of the materials such as aluminium alloy, high performance engineering plastics, the two processing may be used in the frame of forward flange 1 It is simple easy to make.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims (4)

1. a kind of cylinder fixing structure, including cylinder and forward flange, which is characterized in that the rear end of cylinder is fixed on forward flange, Cylinder is made to be located at the side of inner stator, the forward flange is connect with the cylinder by interference fit type, in the forward flange Inner wall offer annular groove, the rear end of the cylinder is connected in annular groove, one end of the annular groove and preceding method Blue side wall alignment, the slot bottom of the annular groove is a ring-shaped platform, and the rear end of the cylinder is pressed on the ring-shaped platform, The front end of the cylinder offers the clamping boss of an annular, which is connected in cylinder head, outside the cylinder head Edge is fixed on by being spirally connected on the forward flange.
2. cylinder fixing structure as described in claim 1, which is characterized in that the bottom of the clamping outside the boss and cylinder head Between be equipped with retainer plate.
3. cylinder fixing structure as described in claim 1, which is characterized in that the cylinder and forward flange for unlike material and divide Body is set.
4. a kind of linear compressor, it is characterised in that:Including the cylinder fixing structure as described in claim 1-3 any one.
CN201310249109.4A 2013-06-21 2013-06-21 Linear compressor and its cylinder fixing structure CN104234975B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310249109.4A CN104234975B (en) 2013-06-21 2013-06-21 Linear compressor and its cylinder fixing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310249109.4A CN104234975B (en) 2013-06-21 2013-06-21 Linear compressor and its cylinder fixing structure

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CN104234975A CN104234975A (en) 2014-12-24
CN104234975B true CN104234975B (en) 2018-06-08

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CN201310249109.4A CN104234975B (en) 2013-06-21 2013-06-21 Linear compressor and its cylinder fixing structure

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106286233B (en) * 2015-06-08 2018-10-02 珠海格力电器股份有限公司 Cylinder assembly, compressor and air conditioner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1420271A (en) * 2001-11-19 2003-05-28 Lg电子株式会社 Piston Supporting structure of reciprocating compressor
CN1439078A (en) * 2001-03-24 2003-08-27 Lg电子株式会社 Reciprocating compressor
CN1458411A (en) * 2002-05-17 2003-11-26 乐金电子(天津)电器有限公司 Reciprocating compressor
CN1637288A (en) * 2003-12-29 2005-07-13 Lg电子株式会社 Apparatus for preventing abrasion in reciprocal compressor
CN101725499A (en) * 2008-10-27 2010-06-09 泰州乐金电子冷机有限公司 Linear compressor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101376614B1 (en) * 2007-11-07 2014-03-20 엘지전자 주식회사 Reciprocating Compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1439078A (en) * 2001-03-24 2003-08-27 Lg电子株式会社 Reciprocating compressor
CN1420271A (en) * 2001-11-19 2003-05-28 Lg电子株式会社 Piston Supporting structure of reciprocating compressor
CN1458411A (en) * 2002-05-17 2003-11-26 乐金电子(天津)电器有限公司 Reciprocating compressor
CN1637288A (en) * 2003-12-29 2005-07-13 Lg电子株式会社 Apparatus for preventing abrasion in reciprocal compressor
CN101725499A (en) * 2008-10-27 2010-06-09 泰州乐金电子冷机有限公司 Linear compressor

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Application publication date: 20141224

Assignee: WanBao Group Compressor Co., Ltd.

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Denomination of invention: Linear compressor and cylinder fixing structure thereof

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