CN201568301U - Vortex type compressor with floating disc - Google Patents

Vortex type compressor with floating disc Download PDF

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Publication number
CN201568301U
CN201568301U CN200920288355XU CN200920288355U CN201568301U CN 201568301 U CN201568301 U CN 201568301U CN 200920288355X U CN200920288355X U CN 200920288355XU CN 200920288355 U CN200920288355 U CN 200920288355U CN 201568301 U CN201568301 U CN 201568301U
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CN
China
Prior art keywords
floating disc
support
vortex
matches
floating
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.)
Expired - Lifetime
Application number
CN200920288355XU
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Chinese (zh)
Inventor
郑星
张铁良
周英涛
朗贤明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dalian Sanyo Compressor Co Ltd
Original Assignee
Dalian Sanyo Compressor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dalian Sanyo Compressor Co Ltd filed Critical Dalian Sanyo Compressor Co Ltd
Priority to CN200920288355XU priority Critical patent/CN201568301U/en
Application granted granted Critical
Publication of CN201568301U publication Critical patent/CN201568301U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a vortex type compressor with a floating disc. A floating disc is arranged between a movable vortex and an upper support of a compressor; the upper surface of the floating disc is near to the bottom surface of the movable vortex; the floating disc is arranged on the upper support; the floating disc is clearance fit with a structure which is matched with the floating disc on the upper support; the clearance fit place is provided with a sealing structure, so that an annular middle pressure cavity is formed between the bottom surface of the floating disc and the bottom surface of the upper support; and the middle pressure cavity is connected with a compressing cavity through a pressure-leading passageway. The vortex type compressor has the following benefit effect: the sealing is static sealing, thereby being reliable; and the sealing can be guaranteed when the floating disc moves relative to the upper support with greater axial direction, so that the distance between movable vortex and static vortex is larger, thereby furthest reducing starting load.

Description

A kind of scroll compressor with floating disc
Technical field
The utility model relates to the scroll compressor field, particularly scroll compressor tooth top sealing configuration.
Background technique
Existing scroll compressor comprise be provided with the spirality scroll wrap decide vortex, with decide the moving vortex that is provided with the spirality scroll wrap that vortex matches, between moving vortex and upper support, move, respectively with moving, decide the vortex cooperation and limit the partition ring that they can only relative translation, by moving vortex and deciding a plurality of compression chambers that vortex has complemented each other to form variable volume, move vortex along its revolution orbit revolution by the driven by motor crank-driven, thereby finish suction, compression and the discharge of gas.In order to raise the efficiency, must make fits at the bottom of the tooth of the vortex tooth top of two scroll and another scroll closely leaks with the tooth top that reduces between the adjacent compression chamber.
In the prior art, fit closely at the bottom of the tooth for the vortex tooth top that makes two scroll and another scroll and leak with the tooth top that reduces between the adjacent compression chamber, take between moving vortex and upper support, to form a back pressure cavity by Sealing, to move vortex by the fluid of introducing certain pressure and push decide vortex one segment distance to, vortex is fitted tightly decide vortex, reduce the leakage of tooth top.
The deficiencies in the prior art are: in the scroll compressor real-world operation process, moving vortex is always in motion at a high speed and generation certain deformation, and the fluid that therefore obtains in good sealing back pressure cavity and the sealing back pressure cavity is very difficult.
Summary of the invention
The purpose of this utility model is in order to solve the above-mentioned problems in the prior art, to propose a kind of improved scroll compressor that can reduce the tooth top leakage.
To achieve these goals, the technical solution of the utility model is as follows: a kind of scroll compressor with floating disc, comprise the vortex of deciding that is installed in the compressor housing, moving vortex, partition ring, upper support, bent axle, rotor, motor stator, deciding vortex is fixed on the upper support, moving vortex, partition ring is arranged on to be decided between vortex and the upper support, moving vortex is by crank-driven, rotor is installed on the bent axle, upper support, motor stator is fixed on the compressor housing, move vortex and decide vortex and complement each other to form a plurality of compression chambers, it is characterized in that: between described moving vortex and described upper support, be provided with floating disc, floating disc is the dish of disk structure, the floating disc middle part is provided with axis hole, shaft hole diameter equals the upper support diameter of bore, floating disc is loaded on the described upper support, upper support is provided with the structure that matches with floating disc, be Spielpassung between on floating disc and the upper support and the structure that floating disc matches, the Spielpassung place is provided with sealing configuration, sealing configuration will form annular intermediate pressure cavity between floating disc bottom surface and the upper support bottom surface, the upper surface of floating disc and the bottom surface of moving vortex connect, moving vortex footstalk is sleeved in the axis hole of floating disc, moving vortex footstalk can radially slide in the axis hole scope of floating disc, described upper support be provided with the structure that matches with floating disc and with floating disc bottom surface and upper support bottom surface between the upper support impulse passage that is communicated with of the annular intermediate pressure cavity that forms, the another port of upper support impulse passage with decide to decide vortex impulse channel connection on the vortex, the another port of deciding vortex impulse passage and moving vortex with decide the compression chamber that vortex complements each other to form and be communicated with.
A kind of scroll compressor described in the utility model with floating disc, it is characterized in that: the structure that matches with floating disc on the described upper support is any one in the following structure: the second ladder axis hole a) is set on original axis hole basis on the lower surface of floating disc, the structure that matches with floating disc on the upper support is: offer the annular groove that matches with the second multidiameter shaft internal surface of hole that is provided with on floating disc excircle and the floating disc lower surface in the bottom surface of upper support, floating disc is installed within the groove, and the interior outer side wall of the groove on the outer peripheral surface of floating disc and the second multidiameter shaft internal surface of hole and upper support ground forms Spielpassung; B) lower surface of floating disc has annular groove, the structure that matches with floating disc on the upper support is: the bottom surface of upper support is provided with the annular boss that matches with the annular groove of floating disc lower surface, the annular groove of floating disc lower surface is contained on the annular boss of upper support, and the inside and outside outer peripheral surface of the interior outer side wall of floating disc groove and upper support boss forms Spielpassung; C) lower surface of floating disc is two layers of cascade ring profile, the structure that matches with floating disc on the upper support is: offer two layers of ladder counterbore that match with two layers of ladder annular disk of floating disc on bottom surface upper support), two layers of cascade ring profile of floating disc are installed in two layers of ladder counterbore of upper support, and two outer peripheral surfaces of two layers of ladder of floating disc and two outer side surfaces of two layers of ladder counterbore on the upper support form Spielpassung.
A kind of scroll compressor with floating disc described in the utility model, it is characterized in that: the upper surface of described floating disc is provided with oil groove.
A kind of scroll compressor with floating disc described in the utility model, it is characterized in that: the upper surface of described floating disc is a concave panel.
A kind of scroll compressor with floating disc described in the utility model is characterized in that: the concave panel of the upper surface of described floating disc is inverted cone face or concave spherical surface.
A kind of scroll compressor with floating disc described in the utility model is characterized in that: described upper support and to decide on the vortex impulse passage be or one or more, impulse passage seal by Sealing between vortex and the upper support deciding.
Compared with prior art, the utlity model has following beneficial effect:
1, forming intermediate pressure cavity of the present utility model needs the sealing of three places, is respectively the two places axial seal that floating disc and upper support cooperate, upper support and decide vortex tracting pressuring hole joint and seal.Three positions are static seal, just can realize good sealing reliably with existing technology (as O type circle), have avoided the leakage of intermediate pressure fluid.
2, before moving vortex floats the scroll compressor starting, moving vortex with decide vortex and normally separate a bit of distance.In the compressor start process, the fluid in the compression chamber can be gone out by this clearance leakage, produces the effect of unloading when starting, reduces starting duty.Common moving vortex floating structure, because it is be subjected to the restriction of the plane sealing structure between moving vortex and the upper support, moving, to decide the distance that vortex separates not too large usually, the DeGrain of unloading.Structure in the utility model, between floating disc and the upper support be sealed in bigger axial displacement the time also can guarantee the sealing, the gap of the motion of partition ring can not change after moving vortex floats yet, therefore can the distance setting of moving, deciding between the vortex is bigger, farthest reduce starting duty.
Description of drawings
The utility model has 8 width of cloth accompanying drawings.Wherein:
Fig. 1 is the structural representation of scroll compressor of the present utility model;
Fig. 2 is the partial structurtes view of scroll compressor tooth top sealing mechanism of the present utility model;
Fig. 3 is the plan view of upper support;
Fig. 4 is embodiment's two an of the present utility model floating disc schematic top plan view;
Fig. 5 is that embodiment's three of the present utility model floating disc master looks schematic representation;
Fig. 6 is embodiment's four of the present utility model floating disc and a upper support cooperating structure schematic representation;
Fig. 7 is embodiment's five of the present utility model floating disc and a upper support cooperating structure schematic representation;
Among the figure: 1, decide vortex, 2, moving vortex, 3, partition ring, 4, upper support, 5, bent axle, 6, rotor, 7, motor stator, 8, floating disc, 9, compression chamber, 10, decide the impulse passage on the vortex, 11, impulse passage on the upper support, 12, Sealing, 13, Sealing, 14, decide on the vortex Sealing between the impulse passage on the impulse passage and upper support, 15, the floating disc outer peripheral surface, 16, the floating disc inner peripheral surface, 17, the floating disc upper surface, 18, the moving vortex back side, 19, the upper support outer peripheral surface, 20, the upper support inner peripheral surface, 21, intermediate pressure cavity, 22, floating disc upper surface oil groove.
Embodiment
Embodiment below in conjunction with accompanying drawing describes further to the utility model.As shown in Figure 1, scroll compressor mainly comprises and decides vortex 1, moving vortex 2, partition ring 3, upper support 4, bent axle 5, rotor 6, motor stator 7.Decide vortex 1 and complement each other to form a plurality of compression chambers 9 with moving vortex 2, be provided with partition ring 3 and decide vortex 1 and moving vortex 2 cooperates at moving vortex 2 dorsal parts, make vortex 2 can only decide vortex 1 translation relatively, bent axle 5 is driven by rotor 6 by motor stator 7, bent axle 5 drives moving vortex 2 and moves along orbit plane, thereby finishes air-breathing, compression, the exhaust process of compression working medium.Floating disc 8 has upper surface 17, contacts with moving vortex 2.Moving vortex 2 slides on the upper surface 17 of floating disc 8 when compressor operating, and provides axially support power upwards by floating disc 8.
Embodiment 1
As shown in Figure 2, between moving vortex 2 and upper support 4, be provided with floating disc 8.Floating disc 8 centers have two layers of ladder axis hole.Have annular groove on the upper support 4.Connect by two place's axis hole Spielpassung between floating disc 8 and the upper support 4, cooperate circumferential surface for the crack between the interior outer side surface of the inner peripheral surface of the outer peripheral surface of floating disc 8 and the second ladder axis hole and upper support 4 annular grooves, seal by Sealing 12 and Sealing 13 respectively between the Spielpassung face, thereby between floating disc and upper support, form annular intermediate pressure cavity 21.Deciding to offer impulse path 10 and impulse passage 11 on vortex 1 and the upper support 4, and be communicated with on vortex 1 and upper support 4 surface of contact deciding, by Sealing 14 sealings.The impulse path 10 is connected compression chamber 9 and intermediate pressure cavity 21 with impulse passage 11.
Working principle of the present utility model is as follows: when compressor start, along with the rotation of moving vortex 2, the pressure in the compression chamber 9 raises.To promote moving vortex 2 and decide vortex 1 and separate a segment distance, a part of compressed fluid in the compression chamber 9 can driven vortex 2 with the tooth top of deciding vortex 1 to external leakage, thereby reduce starting duty.Simultaneously, along with the pressure in the compression chamber 9 raises, compressive flow cognition enters the intermediate pressure cavity 21 that is surrounded by floating disc 8 and upper support 4 by impulse path 10 and the impulse passage of deciding on the vortex 1 11 on the upper support 4, and the pressure in the intermediate pressure cavity 21 is raise.Pressure in the intermediate pressure cavity 21 acts on floating disc 8, changes into the support force of floating disc 8 for moving vortex 2, and direction is axially upwards.When suffered other of the big and moving vortex of this support force 2 axially downward make a concerted effort the time, floating disc 8 will promote moving vortex 2 and rely on and decide vortex 1, closely contact at the bottom of making the tooth of vortex 2 and the tooth top of deciding vortex 1 and relative scroll, make compression chamber 9 obtain good tooth top sealing.
Embodiment 2
Fig. 6 has provided the embodiment of the another kind of fit form between floating disc 8 and the upper support 4, its structure as shown in Figure 6: between moving vortex 2 and upper support 4, be provided with floating disc 8.Floating disc 8 lower surfaces have annular groove.Upper support 4 is provided with annular boss.Be connected by the axis hole Spielpassung between the interior outer side wall of outer side wall in the groove and boss between floating disc 8 and the upper support 4.Seal by Sealing 12 and Sealing 13 respectively on the Spielpassung face, thereby between floating disc and upper support, form annular intermediate pressure cavity 21.Deciding to offer impulse path 10 and impulse passage 11 on vortex 1 and the upper support 4, and be communicated with on vortex 1 and upper support 4 surface of contact deciding, by Sealing 14 sealings.The impulse path 10 is connected compression chamber 9 and intermediate pressure cavity 21 with impulse passage 11.
Embodiment 3
Fig. 7 has provided the embodiment of the another kind of fit form between floating disc 8 and the upper support 4, its structure as shown in Figure 7: between moving vortex 2 and upper support 4, be provided with floating disc 8.Floating disc 8 is two layers of ladder annular.Upper support 4 is provided with two layers of ladder axis hole that cooperate with ladder annular floating disc 8.Connect for the axis hole Spielpassung between two layers of ladder axis hole of the excircle of 8 two layers of ladder of floating disc and upper support 4.The Spielpassung face seals by Sealing 12 and Sealing 13 respectively, thereby forms the intermediate pressure cavity 21 of annular between floating disc and upper support.Deciding to offer impulse path 10 and impulse passage 11 on vortex 1 and the upper support 4, and be communicated with on vortex 1 and upper support 4 surface of contact deciding, by Sealing 14 sealings.The impulse path 10 is connected compression chamber 9 and intermediate pressure cavity 21 with impulse passage 11.
Embodiment 4
Provided the another kind of embodiment of floating disc 8 as Fig. 4, floating disc 8 is provided with oil groove 22 with the floating disc upper surface 17 that moving vortex 2 contacts, can make the easier entire contact surface that enters into of lubricant oil, thereby provide better lubricated, reduce the frictional loss that moving vortex 2 moves on floating disc 8.
Embodiment 5
Provided the another kind of embodiment of floating disc 8 as Fig. 5, the first step upper surface 17 that contacts with moving vortex 2 is processed to the center slightly to recessed shape.This shape can be that the inverted cone face also can be a concave spherical surface.Moving vortex 2 is subjected to the effect of temperature and gas force when the compressor real work, can produce certain deformation.The back side 19 that makes vortex is not a good plane, the blistering sphere but the downward cocked bead in a kind of centre is tilted upward.First upper surface 17 that floating disc 8 is contacted with moving vortex 2 is processed into corresponding shape, can make the back side 18 of upper surface 17 on the floating disc 8 and moving vortex good fit, gap everywhere is more even, be beneficial to lubricant film and form, can reduce the frictional loss that moving vortex 2 moves on floating disc 8.

Claims (6)

1. scroll compressor with floating disc, comprise being installed in and decide vortex (1) in the compressor housing, moving vortex (2), partition ring (3), upper support (4), bent axle (5), rotor (6) and motor stator (7), deciding vortex (1) is fixed on the upper support (4), moving vortex (2) and partition ring (3) are arranged on to be decided between vortex (1) and the upper support (4), moving vortex (2) is driven by bent axle (5), rotor (6) is installed on the bent axle (5), upper support (4), motor stator (7) is fixed on the compressor housing, move vortex (2) and decide vortex (1) and complement each other to form a plurality of compression chambers (9), it is characterized in that: between described moving vortex (2) and described upper support (4), be provided with floating disc (8), floating disc (8) is the dish of disk structure, the floating disc middle part is provided with axis hole, shaft hole diameter equals the upper support diameter of bore, floating disc (8) is loaded on the described upper support (4), upper support (4) is provided with the structure that matches with floating disc, be Spielpassung between on floating disc and the upper support and the structure that floating disc matches, the Spielpassung place is provided with sealing configuration, sealing configuration will form annular intermediate pressure cavity (21) between floating disc bottom surface and the upper support bottom surface, the bottom surface of the upper surface of floating disc (8) and moving vortex (2) connects, moving vortex (2) footstalk is sleeved in the axis hole of floating disc (8), moving vortex (2) footstalk can radially slide in the axis hole scope of floating disc (8), described upper support (4) be provided with the structure that matches with floating disc and with floating disc bottom surface and upper support bottom surface between the upper support impulse passage (11) that is communicated with of the annular intermediate pressure cavity (21) that forms, the another port of upper support impulse passage (11) is communicated with on vortex (1) and upper support (4) surface of contact deciding with the vortex impulse passage of deciding on deciding vortex, the another port of deciding vortex impulse passage and moving vortex (2) with decide the compression chamber (9) that vortex (1) complements each other to form and be communicated with.
2. a kind of scroll compressor according to claim 1 with floating disc, it is characterized in that: the structure that matches with floating disc on the described upper support is any one in the following structure: the second ladder axis hole a) is set on original axis hole basis on the lower surface of floating disc (8), the structure that matches with floating disc on the upper support (4) is: offer the annular groove that matches with the second multidiameter shaft internal surface of hole that is provided with on floating disc excircle and floating disc (8) lower surface in the bottom surface of upper support, floating disc (8) is installed within the groove, and the interior outer side wall of the groove of the outer peripheral surface of floating disc and the second multidiameter shaft internal surface of hole and upper support bottom surface forms Spielpassung; B) lower surface of floating disc (8) has annular groove, the structure that matches with floating disc on the upper support (4) is: the bottom surface of upper support (4) is provided with the annular boss that matches with the annular groove of floating disc (8) lower surface, the annular groove of floating disc (8) lower surface is contained on the annular boss of upper support (4), and the inside and outside outer peripheral surface of the interior outer side wall of floating disc groove and upper support boss forms Spielpassung; C) lower surface of floating disc (8) is two layers of cascade ring profile, the structure that matches with floating disc on the upper support (4) is: offer two layers of ladder counterbore that match with two layers of ladder annular disk of floating disc on the bottom surface of upper support (4), two layers of cascade ring profile of floating disc are installed in two layers of ladder counterbore of upper support (4), and two outer peripheral surfaces of two layers of ladder of floating disc and two outer side surfaces of two layers of ladder counterbore on the upper support form Spielpassung.
3. a kind of scroll compressor with floating disc according to claim 1 is characterized in that: the upper surface of described floating disc (8) is provided with oil groove (22).
4. a kind of scroll compressor with floating disc according to claim 1 is characterized in that: the upper surface of described floating disc (8) is a concave panel.
5. a kind of scroll compressor with floating disc according to claim 4 is characterized in that: the concave panel of the upper surface of described floating disc (8) is inverted cone face or concave spherical surface.
6. a kind of scroll compressor according to claim 1 with floating disc, it is characterized in that: described upper support (4) and decide vortex (1) to go up the impulse passage be or one or more, impulse passage seal decide to pass through Sealing (14) between vortex (1) and the upper support (4).
CN200920288355XU 2009-12-22 2009-12-22 Vortex type compressor with floating disc Expired - Lifetime CN201568301U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920288355XU CN201568301U (en) 2009-12-22 2009-12-22 Vortex type compressor with floating disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920288355XU CN201568301U (en) 2009-12-22 2009-12-22 Vortex type compressor with floating disc

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CN201568301U true CN201568301U (en) 2010-09-01

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101749235B (en) * 2009-12-22 2011-08-24 大连三洋压缩机有限公司 Scroll compressor with floating disc
CN104364529A (en) * 2012-06-14 2015-02-18 大金工业株式会社 Scroll compression device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101749235B (en) * 2009-12-22 2011-08-24 大连三洋压缩机有限公司 Scroll compressor with floating disc
CN104364529A (en) * 2012-06-14 2015-02-18 大金工业株式会社 Scroll compression device
CN104364529B (en) * 2012-06-14 2015-11-25 大金工业株式会社 Scroll compressor

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20100901

Effective date of abandoning: 20091222