CN103775309A - Oil supply mechanism of linear compressor - Google Patents
Oil supply mechanism of linear compressor Download PDFInfo
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- CN103775309A CN103775309A CN201210407510.1A CN201210407510A CN103775309A CN 103775309 A CN103775309 A CN 103775309A CN 201210407510 A CN201210407510 A CN 201210407510A CN 103775309 A CN103775309 A CN 103775309A
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Abstract
本发明提出了一种直线压缩机的供油机构，直线压缩机具有外壳，在外壳内收装有电机本体和用以对其进行供油的供油机构，供油机构包括油缸和置于油缸内的油活塞，将油缸固定于电机本体上，且油缸经由供油管与电机本体连接；将油活塞固定于外壳上，油缸与电机本体联动设置，且油缸借助所述电机本体的运动相对于油活塞运动，使供油机构通过供油管实现供油，能够保证油缸相对于油活塞运动，动作可靠，从而保证供油效果。
The present invention proposes an oil supply mechanism for a linear compressor. The linear compressor has a casing in which a motor body and an oil supply mechanism for supplying oil to it are accommodated. The oil supply mechanism includes an oil cylinder and a The oil piston inside fixes the oil cylinder on the motor body, and the oil cylinder is connected to the motor body through the oil supply pipe; the oil piston is fixed on the outer shell, and the oil cylinder is set in linkage with the motor body, and the oil cylinder is relative to the motor body by the movement of the motor body The movement of the oil piston makes the oil supply mechanism realize the oil supply through the oil supply pipe, which can ensure that the oil cylinder moves relative to the oil piston, and the action is reliable, thereby ensuring the oil supply effect.
Description
Technical field
The present invention relates to a kind of oil feeding mechanism of linear compressor.
Background technique
At present, the oil feeding mechanism of linear compressor mainly comprises two kinds: the first is the oil pump assembly by being connected with compressor motor internal structure, this component internal comprises valve block, pad, oil circuit piston and spring assembly, drives the spring of coupled oil pump inside, oil circuit piston to produce vibration and oil by the vibration of motor internal.But this complicated structure, and difficulty is installed; The second is the oil pump assembly by being connected with compressor motor internal structure, and this component internal comprises multiple valve blocks, pad, drives coupled oil pump action by the vibration of motor internal, slowly oils.Although structure is relatively simple, the effect that oils is poor.
In addition, in Chinese patent Publication CN1548736A, disclose a kind of oil supply structure that air compressor motor (motor) is carried out to fuel feeding, in this structure, on motor fuselage, be fixed with a cylinder body, in cylinder body, there is the piston that can slide, between piston and cylinder body, be provided with spring, the vibration producing while utilizing motor work and the inertia of piston, make piston overcome the active force of spring and move back and forth in cylinder body, thereby realize, the fuel feeding part that needs of motor being carried out to fuel feeding (lubricant oil).Adopt aforesaid oil supply structure, utilize the inertia of piston that piston is moved and realize fuel feeding, such structure is unreliable, fuel feeding poor effect.
Summary of the invention
In view of this, main purpose of the present invention is, a kind of reliable in action is provided and can guarantees the oil feeding mechanism of the linear compressor of fuel feeding effect.
For achieving the above object, the present invention proposes a kind of oil feeding mechanism of linear compressor, described linear compressor has shell, in described shell, receive and motor body is housed and in order to it is carried out to the oil feeding mechanism of fuel feeding, described oil feeding mechanism comprises oil cylinder and is placed in described in-oil cylinder oily piston, it is characterized in that, described oil cylinder is fixed on described motor body, described oily piston is fixed on described shell, described oil cylinder produces the relative movement between described oily piston by the relative movement between described motor body and described shell, so that described oil feeding mechanism is realized fuel feeding by the fuel supply line being connected with described oil cylinder.
In the present invention, because described oil cylinder is fixed on described motor body, described oily piston is fixed on described shell, at described motor body during with respect to described shell relative movement, make described oil cylinder with respect to described oily piston movement, in the time that described oily piston moves to the direction that the fuel supply chamber of described oil cylinder is expanded, lubricant oil is inhaled in the fuel supply chamber of described oil cylinder; In the time that described oily piston moves to the direction that the fuel supply chamber of described oil cylinder is dwindled, lubricant oil is discharged from the fuel supply chamber of described oil cylinder, then realizes fuel feeding via described fuel supply line, can guarantee that described oil cylinder is with respect to described oily piston movement, reliable in action, thus fuel feeding effect guaranteed.
Preferably, described linear compressor has the flange in order to the cylinder of fixing described linear compressor, and described oil cylinder is fixed on this flange, is conducive to described oil cylinder to be fixed, and can also guarantee the stability maintenance of described oil cylinder simultaneously.
Preferably, described linear compressor has the piston with respect to described motor body motion, and described oil cylinder is consistent with respect to the moving direction of described motor body with respect to moving direction and the described piston of described oily piston.
Because described oil cylinder is consistent with respect to the moving direction of described motor body with respect to moving direction and the described piston of described oily piston, the vibration producing because of the motion of described piston can be passed to described oil cylinder largely, make described oil cylinder larger with respect to the mobile degree of described oily piston, be conducive to improve fuel delivery.
Preferably, described linear compressor comprises cylinder and is arranged at the piston of the inner circumferential surface of this cylinder, between the internal face of described cylinder and the outer surface of described piston, form certain interval, described fuel supply line is communicated with this gap, can guarantee lubricant oil to be delivered in described gap, be conducive to the frictional force between the internal face of the cylinder that reduces described linear compressor and the outer surface of the piston of described linear compressor.
Preferably, described linear compressor has a compression chamber, and described fuel supply line is communicated with this compression chamber, can guarantee lubricant oil to be delivered in compression chamber, the lubricant oil that utilization is delivered in described compression chamber is lowered the temperature to the gas in described compression chamber, is conducive to improve the performance of linear compressor.
Preferably, described oil cylinder has in contrast to itself and the described oily piston oil cylinder cover that unification side arranges that matches, on described oil cylinder cover, offer the filler opening flowing into for lubricant oil and the oil outlet that supplies outflow of lubrication oil, described filler opening immerses the lubricant oil that is arranged in described outer casing bottom, described oil outlet is communicated with described fuel supply line, between described oil cylinder and described oil cylinder cover, be provided with oil sucting valve and draining valve, described filler opening is communicated with the fuel supply chamber of described oil cylinder via described oil sucting valve, and the fuel supply chamber of described oil cylinder is communicated with described oil outlet via described draining valve.
Preferably, between described oil sucting valve and described draining valve, be provided with pad, described oil sucting valve is between described oil cylinder and described pad, and described draining valve is between described pad and described oil cylinder cover; Described oil sucting valve has oil suction valve block and oil sucting valve outlet, and described pad has pad filler opening and pad oil outlet, and described draining valve has draining valve import and oil extraction valve block; Described filler opening, draining valve import, pad filler opening, oil suction valve block are aimed at successively, and the area of described oil suction valve block is greater than the aperture of described pad filler opening; Described oil sucting valve outlet, pad oil outlet, oil extraction valve block, oil outlet are aimed at successively, and described draining valve sheet area is greater than the aperture of described pad oil outlet.Because the area of described oil suction valve block is greater than the aperture of described pad filler opening, described draining valve sheet area is greater than the aperture of described pad oil outlet, can prevent that lubricant oil from flowing backwards.
Preferably, on described oil cylinder cover, offer the auxiliary filler opening connecting with described filler opening, and the opening direction of described auxiliary filler opening down.Can increase the area of contact of described filler opening and lubricant oil by described auxiliary filler opening, to guarantee that lubricant oil is inhaled into.
Preferably, be formed with reserve in a side relative with described oil cylinder of described oil cylinder cover, can utilize this reserve to store a part of lubricant oil, be conducive to motor body to realize continuous oil supply.
Accompanying drawing explanation
Fig. 1 is the structural representation that is provided with the linear compressor of oil feeding mechanism shown in the present;
Fig. 2 is the decomposition chart of oil feeding mechanism in Fig. 1.
Embodiment
Below with reference to Fig. 1 and Fig. 2, the embodiment of the oil feeding mechanism to linear compressor of the present invention is described in detail.
As shown in Figure 1, linear compressor has a shell 1, in the interior receipts of this shell 1, motor body 2 and oil feeding mechanism 3 is housed.Form a recess in the bottom of shell 1, in this recess, store lubricant oil, what in figure, symbol 6 represented is the liquid level of this lubricant oil.Oil feeding mechanism 3 utilizes fuel supply line 4 to be connected that with motor body 2 lubricant oil is delivered on motor body 2.Motor body 2 has a housing 21, and this housing 21 is supported on the internal face of shell 1 by multiple springs.In housing 21, be provided with cylinder 11, piston 12, compression chamber 18, outlet valve 19, inner stator 14, be placed in the parts such as coil 17, external stator 15, mover 16 and mover framework 22 in inner stator 14, this cylinder 11, inner stator 14, external stator 15 and mover 16 are cylindrical respectively.External stator 15 is fixed on the internal face of housing 21.Be provided with the flange 13 in order to play fixation at the right-hand member (right side in corresponding to Fig. 1) of housing 21, this flange 13, cylinder 11, compression chamber 18, outlet valve 19, inner stator 14, coil 17 link together with external stator 15 and housing 21, in the time that piston 12 moves, the movement tendency of these parts is consistent.Mover 16 is fixed on mover framework 22, and both are supported between inner stator 14 and the internal face of housing 2 by spring 5.
In the time that coil 17 is switched on, the magnetic intensity in the magnetic field being formed by inner stator 14 and external stator 15 changes, under the effect of magnetic force, mover 16 moves back and forth along its axial (being left and right directions in Fig. 1), this mover 16 drives piston 12 axially moving back and forth along cylinder 11 by mover framework 22, so that the refrigerant gas in compression chamber 18 is compressed, cause the inner component vibration except piston 12, mover framework 22 and mover 16 of whole compressor, even if flange 13 and connected miscellaneous part move back and forth.In addition, about the concrete structure of above-mentioned linear compressor, can also adopt various ways of the prior art, therefore not to repeat here.
As depicted in figs. 1 and 2, oil feeding mechanism 3 has oil cylinder 32 and is placed in the oily piston 31 in this oil cylinder 32.Be provided with oil cylinder cover 33 in contrast to it with the side that oily piston 31 matches at oil cylinder 32, offer the filler opening 33a flowing into for lubricant oil and the oil outlet 33b that supplies outflow of lubrication oil on this oil cylinder cover 33, this oil outlet 33b is communicated with fuel supply line 4.Simultaneously, a side relative with oil cylinder 32 at oil cylinder cover 33 is formed with reserve 33d, and this reserve 33d is a groove, and filler opening 33a and oil outlet 33b are formed on the diapire face of this groove, can utilize reserve 33d to store a part of lubricant oil, be conducive to motor body 2 to realize continuous oil supply.On oil cylinder cover 33, offer an auxiliary filler opening 33c, the opening direction of this auxiliary filler opening 33c down, and connects with filler opening 33a, and filler opening 33a and auxiliary filler opening 33c all immerse the lubricant oil that is arranged in shell 1 bottom, to guarantee that lubricant oil is inhaled into.
Between oil cylinder 32 and oil cylinder cover 33, be provided with oil sucting valve 34, draining valve 35 and be positioned at pad 36 between the two, oil sucting valve 34 is positioned at the side near oil cylinder 32 places, and draining valve 35 is positioned at the side near oil cylinder cover 33 places.Offer respectively the mounting hole of aiming at successively in the bight of oil cylinder 32, oil sucting valve 34, pad 36, draining valve 35 and oil cylinder cover 33, utilize screw through these mounting holes, oil cylinder 32 to be fixed on successively to the outer surface of flange 13.Oil piston 31 have one along left and right directions arrange connecting rod 31a, this connecting rod 31a is fixed on by bolt 31b on the internal face of shell 1, this oil piston 31 with respect to oil cylinder 32 along left and right directions to-and-fro motion.
As shown in Figure 2, oil sucting valve 34 has oil suction valve block 34a and oil sucting valve outlet 34b, and pad 36 has pad filler opening 36a and pad oil outlet 36b, and draining valve 35 has draining valve import 35a and oil extraction valve block 35b.Wherein, filler opening 33a, draining valve import 35a, pad filler opening 36a, oil suction valve block 34a aim at successively, filler opening 33a is communicated with the fuel supply chamber of oil cylinder 32 by the switching of oil suction valve block 34a, and, the area of oil suction valve block 34a (refers to the plate face area that oil suction valve block 34a has here, refer in particular to the area relative with pad filler opening 36a) be greater than the aperture of pad filler opening 36a, to guarantee that oil suction valve block 34a only can be towards open to prevent that lubricant oil from flowing backwards near a side (i.e. left side in Fig. 2) at oil cylinder 32 places.Oil sucting valve outlet 34b, pad oil outlet 36b, oil extraction valve block 35b, oil outlet 33b aim at successively, oil outlet 33b is communicated with the fuel supply chamber of oil cylinder 32 via the switching of oil extraction valve block 35b, and, the area of oil extraction valve block 35b (refers to the plate face area that oil extraction valve block 35b has here, refer in particular to the area relative with pad oil outlet 36b) be greater than the aperture of pad oil outlet 36b, to guarantee that oil extraction valve block 35b only can be towards open to prevent that lubricant oil from flowing backwards near a side (i.e. right side in Fig. 2) at oil cylinder cover 33 places.
Describe below in conjunction with the structure shown in Fig. 1 and Fig. 2, the fuel feeding principle of linear compressor is described.
Mover 16 axially moves back and forth and drives piston 12 to move back and forth by mover framework 22 along it, makes flange 13 and connected miscellaneous part also produce and move back and forth; Multiple parts outside the oil removing piston 31 of oil feeding mechanism 3 are fixed in the outer wall of flange 13, therefore these multiple parts also produce and move back and forth.Particularly:
In the time that oil cylinder 32 moves right with respect to oily piston 31, the fuel supply chamber of oil cylinder 32 expands, in this fuel supply chamber, form negative pressure, oil suction valve block 34a is opened towards left side, and that oil extraction valve block 35b is close to pad oil outlet 36b is upper, lubricant oil flows into the fuel supply chamber of oil cylinder 32 successively via filler opening 33a and auxiliary filler opening 33c, draining valve import 35a, pad filler opening 36a, oil suction valve block 34a.
At oil cylinder 32 with respect to oily piston 31 during to left movement, the fuel supply chamber of oil cylinder 32 dwindles, in this fuel supply chamber, form malleation, oil suction valve block 34a is close on pad filler opening 36a, and oil extraction valve block 35b opens towards right side, lubricant oil flows in fuel supply line 4 via oil sucting valve outlet 34b, pad oil outlet 36b, oil extraction valve block 35b, oil outlet 33b successively, and via fuel supply line 4, lubricant oil is delivered on motor body 2.For example, Figure 2 shows that lubricant oil is delivered on the outer surface of housing 21 of motor body 2, so that it is lowered the temperature.
In the above-described embodiments, because oil cylinder 32 is fixed on the outer surface of flange 13, and oily piston 31 is fixed on the internal face of shell 1, can guarantee that oil cylinder 32 moves with respect to oily piston 31, reliable in action, thus guarantee fuel feeding effect.In addition, in the above-described embodiments, oil cylinder 32 should be consistent with respect to the moving direction of motor body 2 with piston 12 with respect to the moving direction of oily piston 31 as far as possible, thereby the vibration producing because of the motion of piston 12 can be passed to oil cylinder 32 largely, make oil cylinder 32 larger with respect to the mobile degree of oily piston 31, be conducive to improve fuel delivery.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
For example, in the above-described embodiment, oil cylinder 32 is fixed on the outer surface of flange 13, but the present invention is not limited to this, also can be fixed on other positions of motor body 1.
In addition, in the above-described embodiment, utilize screw through being opened in the mounting hole on oil cylinder cover 33, draining valve 35, pad 36, oil sucting valve 34 and oil cylinder 32, oil cylinder 32 to be fixed on successively to the outer surface of flange 13.But not limited thereto, also oil cylinder 32 can be directly welded on the outer surface of flange 13.
In addition, in the above-described embodiment, by bolt 31b, the connecting rod 31a of piston 31 is fixed on the internal face of shell 1, however not limited thereto, also connecting rod 31a can be directly welded on the internal face of shell 1.
In addition, in the above-described embodiments, lubricant oil is delivered in the outer wall of housing 21 of motor body 2.But not limited thereto, fuel supply line 4 also can be communicated with compression chamber 18, thereby lubricant oil is delivered in compression chamber 18, utilizes this lubricant oil to lower the temperature to the gas in compression chamber 18.Meanwhile, between the internal face of cylinder 11 and the outer wall of piston 12, form certain interval, fuel supply line 4 also can be communicated with this gap, thereby lubricant oil is delivered in this gap, is conducive to reduce the frictional force between the internal face of cylinder 11 and the outer surface of piston 12.
Claims (9)
1. the oil feeding mechanism of a linear compressor, described linear compressor has shell (1), in described shell (1), receive and motor body (2) is housed and in order to it is carried out to the oil feeding mechanism (3) of fuel feeding, described oil feeding mechanism (3) comprises oil cylinder (32) and is placed in the oily piston (31) in described oil cylinder (32), it is characterized in that
Described oil cylinder (32) is fixed on described motor body (2), described oily piston (31) is fixed on described shell (1), described oil cylinder (32) produces the relative movement between described oily piston (31) by the relative movement between described motor body (2) and described shell (1), so that described oil feeding mechanism (3) is realized fuel feeding by the fuel supply line (4) being connected with described oil cylinder (32).
2. the oil feeding mechanism of linear compressor according to claim 1, is characterized in that, described linear compressor has the flange (13) in order to the cylinder (11) of fixing described linear compressor, and described oil cylinder (32) is fixed on this flange (13).
3. the oil feeding mechanism of linear compressor according to claim 1, it is characterized in that, described linear compressor has the piston (12) with respect to described motor body (2) motion, and described oil cylinder (32) is consistent with respect to the moving direction of described motor body (2) with respect to moving direction and the described piston (12) of described oily piston (31).
4. the oil feeding mechanism of linear compressor according to claim 1, it is characterized in that, described linear compressor comprises cylinder (11) and is arranged at the piston (12) of the inner circumferential surface of this cylinder (11), between the internal face of described cylinder (11) and the outer surface of described piston (12), form certain interval, described fuel supply line (4) is communicated with this gap.
5. the oil feeding mechanism of linear compressor according to claim 1, is characterized in that, described linear compressor has a compression chamber (18), and described fuel supply line (4) is communicated with this compression chamber (18).
6. according to the oil feeding mechanism of the linear compressor described in any one in claim 1 ~ 5, it is characterized in that, described oil cylinder (32) has in contrast to itself and described oily piston (31) oil cylinder cover (33) that unification side arranges that matches, on described oil cylinder cover (33), offer the filler opening (33a) flowing into for lubricant oil and the oil outlet (33b) that supplies outflow of lubrication oil, described filler opening (33a) immerses the lubricant oil that is arranged in described shell (1) bottom, described oil outlet (33b) is communicated with described fuel supply line (4)
Between described oil cylinder (32) and described oil cylinder cover (33), be provided with oil sucting valve (34) and draining valve (35), described filler opening (33a) is communicated with the fuel supply chamber of described oil cylinder (32) via described oil sucting valve (34), and the fuel supply chamber of described oil cylinder (32) is communicated with described oil outlet (33b) via described draining valve (35).
7. the oil feeding mechanism of linear compressor according to claim 6, it is characterized in that, between described oil sucting valve (34) and described draining valve (35), be provided with pad (36), described oil sucting valve (34) is positioned between described oil cylinder (32) and described pad (36), described draining valve (35) is positioned between described pad (36) and described oil cylinder cover (33)
Described oil sucting valve (34) has oil suction valve block (34a) and oil sucting valve outlet (34b), described pad (36) has pad filler opening (36a) and pad oil outlet (36b), described draining valve (35) has draining valve import (35a) and oil extraction valve block (35b)
Described filler opening (33a), draining valve import (35a), pad filler opening (36a), oil suction valve block (34a) are aimed at successively, and the area of described oil suction valve block (34a) is greater than the aperture of described pad filler opening (36a),
Described oil sucting valve outlet (34b), pad oil outlet (36b), oil extraction valve block (35b), oil outlet (33b) are aimed at successively, and the area of described oil extraction valve block (35b) is greater than the aperture of described pad oil outlet (36b).
8. the oil feeding mechanism of linear compressor according to claim 6, it is characterized in that, on described oil cylinder cover (33), offer the auxiliary filler opening (33c) connecting with described filler opening (33a), and the opening direction of described auxiliary filler opening (33c) down.
9. the oil feeding mechanism of linear compressor according to claim 6, is characterized in that, a side relative with described oil cylinder (32) at described oil cylinder cover (33) forms reserve (33d).
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| CN201210407510.1A CN103775309B (en) | 2012-10-23 | 2012-10-23 | The oil supply mechanism of linear compressor |
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| CN201210407510.1A CN103775309B (en) | 2012-10-23 | 2012-10-23 | The oil supply mechanism of linear compressor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105986990A (en) * | 2015-03-04 | 2016-10-05 | 青岛海尔智能技术研发有限公司 | Linear compressor and lubricating oil supply method |
| WO2023109402A1 (en) * | 2021-12-17 | 2023-06-22 | 青岛海尔电冰箱有限公司 | Compressor oil supply apparatus, compressor, and refrigeration device |
| WO2023109401A1 (en) * | 2021-12-17 | 2023-06-22 | 青岛海尔电冰箱有限公司 | Compressor oil supply device, compressor, and refrigeration apparatus |
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Owner name: QINGDAO HAIER INTELLIGENT TECHNOLOGY DEVELOPMENT C Free format text: FORMER OWNER: HAIER GROUP CORPORATION Effective date: 20150120 Free format text: FORMER OWNER: HAIER GROUP TECHNOLOGY RESEARCH AND DEVELOPMENT CENTER QINGDAO HAIR CO., LTD. Effective date: 20150120 |
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Effective date of registration: 20150120 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Intellectual technology research and development Co., Ltd of Qingdao Haier Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Haier Group Technology Research and Development Center Applicant before: Qingdao Hair Co., Ltd. |
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Application publication date: 20140507 Assignee: Jiaxibeila Compressor Co., Ltd. Assignor: Intellectual technology research and development Co., Ltd of Qingdao Haier Contract record no.: 2015990000349 Denomination of invention: Oil supply mechanism of linear compressor License type: Common License Record date: 20150525 |
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