CN1626814A - Vibration-proof structure in rotating type compressor - Google Patents
Vibration-proof structure in rotating type compressor Download PDFInfo
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- CN1626814A CN1626814A CN 200310107446 CN200310107446A CN1626814A CN 1626814 A CN1626814 A CN 1626814A CN 200310107446 CN200310107446 CN 200310107446 CN 200310107446 A CN200310107446 A CN 200310107446A CN 1626814 A CN1626814 A CN 1626814A
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- rotary
- piston
- eccentric part
- vibration damping
- rotary compressor
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Abstract
The invention relates to a vibration-reducing structure of rotary compressor. Said structure is characterized by that on one side of crank shaft of rotating motor an eccentric portion is formed, a rotary piston is inserted into the eccentric portion from the interior of cylinder, an a blade capable of making linear motion toward radius direction with rotary motion of rotary piston is press-connected to the peripheral surface of the above-mentioned rotary piston and placed in the rotary compressor between suction opening and exhaust opening of the cylinder, and a weight-reducing portion is formed in the eccentric portion and can be used for reducing eccentric load weight of crankshaft and reducing deflecting torque so as to reduce vibration of compressor and raise its reliability.
Description
Technical field
The invention relates to the bent axle of rotary compressor, particularly reduce the rotary compressor vibration damping structure of vibration about the eccentric part weight that reduces bent axle.
Background technique
The rotary compressor that generally is applicable to air conditioner is eccentric in conjunction with rotary-piston on the bent axle, and when the contact of this rotary-piston line is rotated motion with circular cylinder, with the rotatablely moving of rotary-piston, the outer circumferential face that the blade that moves reciprocatingly to radial direction is crimped onto rotary-piston comes compression refrigeration gas.
Fig. 1 is the profile diagram of one of rotary compressor example in the past, and Fig. 2 is profile diagram of " A " part in the displayed map 1.
As shown in the figure, rotary compressor in the past is communicated with the casing (1) that gas suction pipe (SP) and gas outlet pipe (DP) are set with a certain amount of refrigeration oil of packing into; Be arranged on the top of casing (1), the electric structure portion of the power that rotates; Be arranged on the bottom of casing (1), utilize the rotatory force that produces from above-mentioned electric structure portion to come the compression structure part of compressed refrigerant to constitute.
Electric structure portion is fixed on the inside of casing (1), with the stator (Ms) from outside supply power; Be configured in stator (Ms) inside, and leave certain space, interact and rotor (Mr) formation of rotation with said stator (Ms).
Compression structure part is with annular, and is arranged at the inner cylinder body (2) of casing (1); Cover the both sides up and down of cylinder body (2), and together constitute the main bearing (3) and the auxiliary bearing (4) of cylinder; Be pressed on the rotor (Mr), and supported and the bent axle (5) of reception and registration rotatory force by main bearing (3) and auxiliary bearing (4); The rotary-piston (6) of compressed refrigerant is come in the inner space that is rotated in cylinder body (2) with rotary combination of eccentric part of bent axle (5); Can movably combine by the radial direction to cylinder body (2) with the outer circumferential face crimping of rotary-piston (6), and the inner space of above-mentioned cylinder body (2) be divided into the blade (not shown) of suction chamber and pressing chamber; What can open and close is combined near main bearing (3) central authorities relief opening (3a) front end, the drain tap assembly (7) of the refrigerant gas that restriction is discharged from pressing chamber; Be arranged on the outer side surface of main bearing (3), the baffler (8) that possesses the resonant chamber of accommodating drain tap assembly (7) constitutes.
Bent axle (5) is pressed on the electric structure portion rotor with the first half, Lower Half combines with compression structure part and the axial region (5A) that supports to the axle direction of main bearing (3) and auxiliary bearing (4) and radial direction and form in that the Lower Half of axial region (5A) is eccentric, and the eccentric part (5B) that inserts rotary-piston (6) constitutes.
Axial region (5A) axially forms oil circuit (5a) in the central, and eccentric part (5B) forms solid cylinder apperance as shown in Figures 2 and 3.Unaccounted symbol 8a is an exhaust port in the drawing.
The above-mentioned working procedure of rotary compressor in the past is as follows: promptly, give stator (Ms) power supply of electric structure portion and rotor (Mr) when rotating, the bent axle of compression structure part (5) rotates with rotor (Mr), rotary-piston (6) is in the inner space of cylinder eccentric rotary, eccentric rotary with rotary-piston (6), refrigerant gas sucks to the suction chamber of cylinder constantly, and be compressed to certain pressure, high moment of pressure in the pressure ratio casing (1) of the pressing chamber of cylinder, a series of repetitive process of discharging to casing (1) by the relief opening (3a) and the baffler (8) of main bearing (3).
At this moment, the axial region (5A) of bent axle (5), is pushed into bearing portion and axially supports and rotate when radial direction supports by the radial bearing portion of main bearing (3) and auxiliary bearing (4).
But, in rotary compressor in the past, produce the deflecting torque that inclined to one side loading causes, the problem points that induced to compressor vibrates so exist turning of rotor (Mr) and bent axle (5) to be rotated motion because of the lower end of bent axle (5) forms eccentric part (5B).
Summary of the invention
The present invention proposes after the problem points of considering to exist in the above-mentioned rotary compressor, the object of the present invention is to provide the weight that reduces crankshaft eccentric portion to reduce the radius that rotatablely moves of solid of rotation, thereby can reduce the vibration damping structure of the rotary compressor of vibration of compressor.
In order to reach purpose of the present invention, at the bent axle one side formation eccentric part of rotary electric machine; Insert rotary-piston from cylinder interior to eccentric part; Rotatablely moving with rotary-piston, do the outer circumferential face that straight-line blade is crimped onto above-mentioned rotary-piston to radial direction, and be configured in the intakeport and the rotary compressor between the relief opening of cylinder, being provided at eccentric part formation loss of weight portion is the vibration damping structure of the rotary compressor of feature.
The vibration damping structure of described rotary compressor is characterized in that loss of weight portion is axially to form the vibration damping structure of an above lightening hole at least at eccentric part.
The vibration damping structure of described rotary compressor is characterized in that loss of weight portion is axially to form the vibration damping structure of the loss of weight groove that is recessed into by certain depth more than at least at eccentric part.
Reduce the weight of above-mentioned eccentric part with crankshaft eccentric portion formation lightening hole or loss of weight groove according to the vibration damping structure of hermetic motor compressor of the present invention, thereby the inclined to one side loading that reduces bent axle reduces deflecting torque, and, improve reliability by reduce the vibration of compressor with this.
Description of drawings
Fig. 1 is the profile diagram of one of rotary compressor example in the past
Fig. 2 is the profile diagram of " A " part in the displayed map 1
Fig. 3 sees the planimetric map of rotary compressor bent axle in the past from above
Fig. 4 is the profile diagram according to one of rotary compressor example of the present invention
Fig. 5 is the profile diagram of " B " part in the displayed map 1
Fig. 6 is the planimetric map of seeing from above according to rotary compressor bent axle of the present invention
Fig. 7 and Fig. 8 are the changes of seeing from above according to rotary compressor bent axle of the present invention
The planimetric map of shape example and a part of profile diagram of seeing from the side
Explanation to figure major component symbol
1: casing 2: cylinder body
3,4: main, auxiliary bearing 6: rotary-piston
7: drain tap assembly 8: baffler
10: bent axle 11: axial region
12: eccentric part 12a: lightening hole
12b: loss of weight groove
Embodiment
Below, reference is elaborated according to the accompanying drawing of the vibration damping structure of hermetic motor compressor of the present invention.Fig. 4 is the profile diagram according to one of rotary compressor example of the present invention, Fig. 5 is the profile diagram of " B " part in the displayed map 1, Fig. 6 is the planimetric map of seeing from above according to rotary compressor bent axle of the present invention, and Fig. 7 and Fig. 8 see from above according to the planimetric map of the variation of rotary compressor bent axle of the present invention and a part of profile diagram of seeing from the side.
As shown in the figure, rotary compressor according to the present invention is communicated with the casing (1) that gas suction pipe (SP) and gas outlet pipe (DP) are set with a certain amount of refrigeration oil of packing into; Be arranged on the top of casing (1), the electric structure portion of the power that rotates; Be arranged on the bottom of casing (1), utilize from the rotatory force of electric structure portion generation and come the compression structure part of compressed refrigerant to constitute.
Electric structure portion is fixed on the inside of casing (1), with the stator (Ms) from outside supply power; Be configured in stator (Ms) inside, and leave certain space, interact and rotor (Mr) formation of rotation with stator (Ms).
Compression structure part is with annular, and is arranged at the inner cylinder body (2) of casing (1); Cover the both sides up and down of cylinder body (2), and together constitute the main bearing (3) and the auxiliary bearing (4) of cylinder; Be pressed on the rotor (Mr), and supported and the bent axle (10) of reception and registration rotatory force by main bearing (3) and auxiliary bearing (4); The rotary-piston (6) of compressed refrigerant is come in the inner space that is rotated in cylinder body (2) with eccentric part (12) the rotary combination of bent axle (10); Can movably combine by the radial direction to cylinder body (2) with the outer circumferential face crimping of rotary-piston (6), and the inner space of cylinder body (2) be divided into the blade (not shown) of suction chamber and pressing chamber; What can open and close is combined near main bearing (3) central authorities relief opening (3a) front end, the drain tap assembly (7) of the refrigerant gas that restriction is discharged from pressing chamber; Be arranged on the outer side surface of main bearing (3), the baffler (8) that possesses the resonant chamber of accommodating drain tap assembly (7) constitutes.
Bent axle (10) is pressed on the electric structure portion rotor (Mr) with the first half, Lower Half combines with compression structure part and the axial region (11) that supports to the axle direction of above-mentioned main bearing (3) and auxiliary bearing (4) and radial direction and form in that the Lower Half of axial region (11) is eccentric, and the eccentric part (12) that inserts rotary-piston (6) constitutes.
Mediad axle direction at axial region (11) forms the oil circuit (11a) that can be drawn onto refrigeration oil the upper end.
Eccentric part (12) forms solid cylinder apperance, for reducing the weight of eccentric part (12), can connect several (being 3 on the drawing) lightening holes (12a) of formation or form recessed loss of weight groove (12b) in the bi-side up and down of eccentric part (12) as Fig. 5 and Fig. 6 as Fig. 7.
Here, lightening hole (12a) or loss of weight groove (12b) can only form one, and at this moment, lightening hole (12a) or loss of weight groove (12b) form the bent moon apperance with the plane shape of eccentric part (12) and be advisable.
In drawing, given identical symbol with identical in the past part.Unaccounted symbol 8a is an exhaust port in the drawing.
Aforesaid possess according to the action effect of the rotary compressor of bent axle of the present invention as follows.
Promptly, give stator (Ms) power supply of electric structure portion and rotor (Mr) when rotating, the bent axle of compression structure part (10) rotates with rotor (Mr), rotary-piston (6) is in the inner space of cylinder eccentric rotary, with the eccentric rotary of rotary-piston (6), refrigerant gas sucks to the suction chamber of cylinder constantly, and is compressed to certain pressure, high moment of pressure in the pressure ratio casing (1) of the pressing chamber of cylinder, a series of repetitive process of discharging by relief opening (3a) and baffler (8).
At this moment, bent axle (10) rotates because of axial region (11) is axially supported with radial direction by main bearing (3) and auxiliary bearing (4), eccentric part (12) is that center and rotary-piston (6) together rotate with axial region (11), and eccentric part (12) is as the formation lightening hole shown in Figure 6 (12a) of Fig. 4 or when forming loss of weight groove (12b) as shown in Figure 7, the weight that reduces eccentric part (12) when keeping the turning radius of eccentric part (12) reduces inclined to one side loading, thereby reduce the deflecting torque of bent axle (10), shorten the vibration that turning radius reduces compressor.
Claims (3)
1, a kind of vibration damping structure of rotary compressor is characterized in that forming eccentric part in bent axle one side of rotary electric machine; Insert rotary-piston from cylinder interior to eccentric part; With the rotatablely moving of rotary-piston, do the outer circumferential face that straight-line blade is crimped onto above-mentioned rotary-piston to radial direction, and be configured in the intakeport and the rotary compressor between the relief opening of cylinder, form the vibration damping structure of loss of weight portion at eccentric part.
2, the vibration damping structure of rotary compressor according to claim 1 is characterized in that loss of weight portion is axially to form the vibration damping structure of an above lightening hole at least at eccentric part.
3, the vibration damping structure of rotary compressor according to claim 1 is characterized in that loss of weight portion is axially to form the vibration damping structure of the loss of weight groove that is recessed into by certain depth more than at least at eccentric part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107446 CN1626814A (en) | 2003-12-12 | 2003-12-12 | Vibration-proof structure in rotating type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310107446 CN1626814A (en) | 2003-12-12 | 2003-12-12 | Vibration-proof structure in rotating type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1626814A true CN1626814A (en) | 2005-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310107446 Pending CN1626814A (en) | 2003-12-12 | 2003-12-12 | Vibration-proof structure in rotating type compressor |
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| CN (1) | CN1626814A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101042170B (en) * | 2006-03-22 | 2010-05-12 | 朱心平 | Vibration-damping method for piston type engine |
| CN104963867A (en) * | 2015-07-02 | 2015-10-07 | 广东美芝制冷设备有限公司 | Rotary compressor and crankshaft thereof |
| CN105003526A (en) * | 2015-07-02 | 2015-10-28 | 广东美芝制冷设备有限公司 | Rotary compressor and crankshaft thereof |
| WO2016043455A1 (en) * | 2014-09-19 | 2016-03-24 | Lg Electronics Inc. | Compressor |
| CN105443390A (en) * | 2015-09-18 | 2016-03-30 | 宁波甬微集团有限公司 | Rolling piston for compressor and manufacturing method thereof |
| CN105840516A (en) * | 2016-05-06 | 2016-08-10 | 宁波甬微集团有限公司 | Rolling piston used for compressor |
| CN105840515A (en) * | 2016-05-06 | 2016-08-10 | 宁波甬微集团有限公司 | Rolling piston used for compressor |
-
2003
- 2003-12-12 CN CN 200310107446 patent/CN1626814A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101042170B (en) * | 2006-03-22 | 2010-05-12 | 朱心平 | Vibration-damping method for piston type engine |
| WO2016043455A1 (en) * | 2014-09-19 | 2016-03-24 | Lg Electronics Inc. | Compressor |
| US10962010B2 (en) | 2014-09-19 | 2021-03-30 | Lg Electronics Inc. | Compressor |
| CN104963867A (en) * | 2015-07-02 | 2015-10-07 | 广东美芝制冷设备有限公司 | Rotary compressor and crankshaft thereof |
| CN105003526A (en) * | 2015-07-02 | 2015-10-28 | 广东美芝制冷设备有限公司 | Rotary compressor and crankshaft thereof |
| CN105003526B (en) * | 2015-07-02 | 2019-04-05 | 广东美芝制冷设备有限公司 | Rotary compressor and its crankshaft |
| CN105443390A (en) * | 2015-09-18 | 2016-03-30 | 宁波甬微集团有限公司 | Rolling piston for compressor and manufacturing method thereof |
| CN105443390B (en) * | 2015-09-18 | 2018-06-05 | 宁波甬微集团有限公司 | Compressor rolling piston and its manufacturing method |
| CN105840516A (en) * | 2016-05-06 | 2016-08-10 | 宁波甬微集团有限公司 | Rolling piston used for compressor |
| CN105840515A (en) * | 2016-05-06 | 2016-08-10 | 宁波甬微集团有限公司 | Rolling piston used for compressor |
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