CN110671323A - Scroll compressor with axial magnetic suspension structure - Google Patents
Scroll compressor with axial magnetic suspension structure Download PDFInfo
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- CN110671323A CN110671323A CN201911072026.6A CN201911072026A CN110671323A CN 110671323 A CN110671323 A CN 110671323A CN 201911072026 A CN201911072026 A CN 201911072026A CN 110671323 A CN110671323 A CN 110671323A
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- magnetic force
- magnetic
- movable scroll
- scroll
- upper support
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- 239000000725 suspension Substances 0.000 title claims abstract description 12
- 239000011159 matrix material Substances 0.000 claims description 10
- 238000005339 levitation Methods 0.000 claims description 8
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000002940 repellent Effects 0.000 description 3
- 239000005871 repellent Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0253—Details concerning the base
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0269—Details concerning the involute wraps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/001—Radial sealings for working fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a scroll compressor with an axial magnetic suspension structure, wherein a first magnetic component is embedded in a movable scroll; a second magnetic force part is embedded in the upper supporting piece; the movable scroll and the upper supporting piece are separated from each other through repulsive force generated by the first magnetic force component and the second magnetic force component; the first magnetic force component is arranged along the circumferential direction of the movable scroll plate and is provided with a first magnetic force surface facing downwards; the second magnetic force component is arranged along the circumferential direction of the upper support and is provided with a second magnetic force surface facing upwards; the first magnetic force surface and the second magnetic force surface repel each other. The scroll compressor of the invention utilizes the magnetic force component with the repulsive interaction surface to reduce the pressure between the movable scroll and the upper supporting piece, thereby greatly reducing the power consumption, reducing the friction heat, enhancing the reliability and simultaneously having more compact structure.
Description
Technical Field
The invention relates to the technical field of scroll compressors, in particular to a scroll compressor with an axial magnetic suspension structure.
Background
At present, the structure of the scroll compressor is as follows: the fixed scroll is arranged above the movable scroll, the movable scroll is arranged below the fixed scroll, the movable scroll is driven by the rotation of the crankshaft to move and is meshed with the fixed scroll to form a closed cavity, and further the compressor gas is supported below the movable scroll by an upper support (a thrust surface). The orbiting scroll itself has a downward gravitational force, and the higher pressure generated in the closed scroll compression chamber causes the orbiting scroll to generate a greater downward force. Due to the improvement of the processing capacity, the displacement and the size specification of the scroll compressor are developed towards a larger direction, and a downward force larger than 20KN can be generated by taking a 50HP compressor as an example, namely, the contact force between the bottom surface of the movable scroll and the thrust surface of the upper support is larger than 20 KN. This causes the following problems: the relative sliding generates larger friction force and larger power consumption; due to the action of larger friction force, the reliability is poorer, and the deformation is easy to damage; in order to reduce the stress per unit area, the area of the upper supporting thrust surface is increased, which affects the compactness of the compressor structure and also hinders the development of the large-scale compressor.
Disclosure of Invention
The invention aims to provide a scroll compressor with an axial magnetic suspension structure, which has a novel structure and reduces sliding friction force and power consumption of the compressor by eliminating or partially eliminating pressure between two surfaces.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to a scroll compressor with an axial magnetic suspension structure, wherein a movable scroll plate and an upper supporting piece are arranged in the scroll compressor, and the scroll compressor comprises:
the movable scroll plate is integrated above the upper supporting piece;
a through hole is formed at the axis of the upper supporting piece;
the lower part of the movable scroll plate extends into the through hole, and the movable scroll plate is in clearance fit with the upper supporting piece;
a first magnetic component is embedded in the movable scroll;
a second magnetic force part is embedded in the upper supporting piece;
the movable scroll and the upper supporting piece are separated from each other through repulsive force generated by the first magnetic force component and the second magnetic force component;
the first magnetic force component is arranged along the circumferential direction of the movable scroll plate and is provided with a first magnetic force surface facing downwards;
the second magnetic force component is arranged along the circumferential direction of the upper support and is provided with a second magnetic force surface facing upwards;
the first magnetic force surface and the second magnetic force surface repel each other.
Further, the movable scroll plate comprises a movable scroll plate main body and a bulge body formed in the middle of the lower end of the movable scroll plate main body;
the convex body extends into the through hole of the upper supporting piece;
the first magnetic member is arranged at the periphery of the convex body;
and a first embedded groove is formed in the part of the movable scroll main body, which is positioned on the periphery of the convex body, and the first magnetic part is embedded into the first embedded groove.
Further, a second embedding groove and a third embedding groove are formed in the upper supporting piece along the circumferential direction of the upper supporting piece;
the second magnetic member is embedded in the second embedded groove and the third embedded groove.
Further, the first magnetic component is a permanent magnet or a coil matrix, and the second magnetic component is a permanent magnet or a coil matrix.
Further, the outer diameter of the convex body is smaller than the inner diameter of the through hole, and a first gap is reserved between the convex body and the upper supporting piece;
and a second gap is reserved between the lower surface of the movable scroll main body and the upper surface of the upper supporting piece.
In the technical scheme, the scroll compressor with the axial magnetic suspension structure provided by the invention has the following beneficial effects:
1. the scroll compressor of the invention utilizes the magnetic force component with the repulsive interaction surface to reduce the pressure between the movable scroll and the upper supporting piece, thereby greatly reducing the power consumption, reducing the friction heat, enhancing the reliability and simultaneously having more compact structure;
2. the repulsive force (magnetic force) generated by the compressor can completely separate the movable scroll from the upper supporting piece, and completely eliminate the mechanical friction force at the position.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural diagram of a scroll compressor with an axial magnetic levitation structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of a connection structure between a movable scroll and an upper support of a scroll compressor with an axial magnetic levitation structure according to an embodiment of the present invention;
FIG. 3 is a front view of a movable scroll of a scroll compressor with an axial magnetic levitation structure according to an embodiment of the present invention;
FIG. 4 is a top view of a movable scroll of a scroll compressor with an axial magnetic levitation structure according to an embodiment of the present invention;
FIG. 5 is a front view of an upper support of a scroll compressor with an axial magnetic levitation structure provided in accordance with an embodiment of the present invention;
fig. 6 is a top view of an upper support of a scroll compressor with an axial magnetic levitation structure according to an embodiment of the present invention.
Description of reference numerals:
1. a movable scroll; 2. an upper support member;
101. an orbiting scroll body; 102. a protrusion;
201. a through hole;
301. a first magnetic member; 302. a second magnetic member;
401. a first gap; 402. a second gap.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
See fig. 1-6;
the invention relates to a scroll compressor with an axial magnetic suspension structure, wherein a movable scroll plate 1 and an upper supporting piece 2 are arranged in the scroll compressor, wherein:
the movable scroll 1 is integrated above the upper support 2;
a through hole 201 is formed at the axis of the upper support 2;
the lower part of the movable scroll 1 extends into the through hole 201, and the movable scroll 1 is in clearance fit with the upper support part 2;
a first magnetic force component 301 is embedded in the movable scroll 1;
the second magnetic force component 302 is embedded in the upper supporting piece 2;
the movable scroll 1 and the upper support 2 are separated from each other by repulsive force generated by the first magnetic member 301 and the second magnetic member 302;
the first magnetic force member 301 is arranged along the circumferential direction of the movable scroll 1, and the first magnetic force member 301 has a first magnetic force surface facing downward;
the second magnetic force member 302 is arranged along the circumferential direction of the upper support 2, and the second magnetic force member 302 has a second magnetic force surface facing upward;
the first magnetic force surface and the second magnetic force surface repel each other.
Specifically, in the present embodiment, magnetic members are integrated in the movable scroll 1 and the upper support 2 of the existing scroll compressor, which are the first magnetic member 301 and the second magnetic member 302, respectively, and the repulsive force generated by the repulsive surfaces of the first magnetic member 301 and the second magnetic member 302 is utilized to separate the two members, so as to counteract or partially counteract the downward force generated during operation by the repulsive force, thereby eliminating the mechanical friction force between the two members.
Preferably, the orbiting scroll 1 of the present embodiment includes an orbiting scroll main body 101, and a boss 102 formed at a central position of a lower end of the orbiting scroll main body 101;
the projection 102 extends into the through hole 201 of the upper support 2;
the first magnetic force member 301 is arranged at the outer periphery of the projection 102;
a first fitting groove is formed in a portion of the orbiting scroll main body 101 located on the outer periphery of the boss 102, and the first magnetic member 301 is fitted into the first fitting groove.
Preferably, the upper support member 2 in this embodiment is formed with a second insertion groove and a third insertion groove along its circumferential direction;
the second magnetic member 302 is fitted into the second and third fitted grooves.
Considering that the integrated magnetic force component needs to have the repellent surfaces, and simultaneously, according to the magnitude of the downward force to be counteracted, the size of the repellent surfaces is reserved as much as possible, so that the repellent force counteracts the whole downward force as much as possible. The movable scroll 1 and the upper support member 2 are both in a disc structure, the first magnetic force component 301 is arranged in the circumferential direction of the movable scroll 1, and the second magnetic force component 302 is arranged in the circumferential direction of the upper support member 2; meanwhile, considering that the acting force to be counteracted is distributed along the vertical direction, the first magnetic member 301 and the second magnetic member 302 are arranged at the positions close to the outer peripheral surface as much as possible, and the size of the embedding groove is designed to be suitable according to the magnitude of the counteracting downward force during actual operation, so that the magnetic member with enough acting force can be reasonably installed.
The sizes of the slots of the second embedded groove and the third embedded groove are different, so that the sizes of the second magnetic force components 302 embedded into the second embedded groove and the third embedded groove are also different, and in order to realize subsequent control, a design magnetic field is generated by changing the current.
Preferably, in this embodiment, the first magnetic member 301 is a permanent magnet or a coil matrix, and the second magnetic member 302 is a permanent magnet or a coil matrix.
The magnetic member of the present embodiment is used basically in the following three ways:
the first one is: the first magnetic component 301 and the second magnetic component 302 simultaneously adopt coil matrixes, and the coil matrixes generate repulsive force after being electrified;
the second method is as follows: the first magnetic force component 301 is a permanent magnet, the second magnetic force component 302 adopts a coil matrix, and the coil matrix generates repulsive force with the permanent magnet after being electrified;
the third is: the first magnetic component 301 is a coil matrix, the second magnetic component 302 is a permanent magnet, and similarly, the coil matrix generates repulsive force with the permanent magnet after being electrified.
Preferably, the outer diameter of the protrusion 102 in this embodiment is smaller than the inner diameter of the through hole 201, and a first gap 401 is reserved between the protrusion 102 and the upper support 2;
the lower surface of the orbiting scroll body 101 reserves a second gap 402 with the upper surface of the upper support 2.
In actual use, will move the scroll 1 and put upper support piece 2 level in scroll compressor's upper portion, move the scroll 1 and receive the pressure in high-pressure gas village in the operation process, upper support piece 2 receives and moves the downward pressure of scroll 1, and first magnetic force component 301 and second magnetic force component 302 produce the repulsion effort, and the repulsion effort that produces transmits respectively for the mechanism rather than being connected to this separates two mechanisms, thereby avoids two mechanism contacts and has eliminated mechanical friction.
Because the movable scroll 1 eccentrically moves along with the crankshaft, the magnetic center of the first magnetic component 301 circularly moves, and the embodiment is provided with two different second magnetic components 302, the magnetic center lines generated by the second magnetic component 302 in the second embedded groove and the second magnetic component 302 in the third embedded groove synchronously move along with the magnetic center line of the first magnetic component 301 by adopting a closed-loop active control mode, and the control system controls different currents of the second magnetic component 301.
In the technical scheme, the scroll compressor with the axial magnetic suspension structure provided by the invention has the following beneficial effects:
the scroll compressor of the invention utilizes the magnetic force component with the repulsive interaction surface to reduce the pressure between the movable scroll 1 and the upper supporting piece 2, thereby greatly reducing the power consumption, reducing the friction heat, enhancing the reliability and simultaneously having more compact structure;
the repulsive force (magnetic force) generated by the compressor can completely separate the movable scroll 1 from the upper supporting piece 2, and completely eliminate the mechanical friction force at the position, because the movable scroll 1 can move up and down, the sealing effect is enhanced by moving up, and the load of the movable scroll 1 and the compressor can be unloaded to a certain degree by moving down.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (5)
1. The utility model provides a scroll compressor with axial magnetic suspension structure, this scroll compressor internally mounted have move vortex dish (1) and upper bracket spare (2), its characterized in that:
the movable scroll (1) is integrated above the upper support (2);
a through hole (201) is formed at the axis of the upper supporting piece (2);
the lower part of the movable scroll (1) extends into the through hole (201), and the movable scroll (1) is in clearance fit with the upper support piece (2);
a first magnetic force component (301) is embedded in the movable scroll (1);
a second magnetic force component (302) is embedded in the upper supporting piece (2);
the movable scroll (1) and the upper support (2) are separated from each other by repulsive force generated by the first magnetic force component (301) and the second magnetic force component (302);
the first magnetic force component (301) is arranged along the circumferential direction of the movable scroll (1), and the first magnetic force component (301) is provided with a first magnetic force surface facing downwards;
the second magnetic force component (302) is arranged along the circumferential direction of the upper support (2), and the second magnetic force component (302) is provided with a second magnetic force surface facing upwards;
the first magnetic force surface and the second magnetic force surface repel each other.
2. The scroll compressor with the axial magnetic suspension structure according to claim 1, wherein the movable scroll (1) comprises a movable scroll main body (101), and a convex body (102) formed at a lower middle position of the movable scroll main body (101);
the bulge (102) extends into a through hole (201) of the upper support (2);
the first magnetic member (301) is arranged at the periphery of the projection (102);
the part of the movable scroll main body (101) positioned on the periphery of the convex body (102) is provided with a first embedded groove, and the first magnetic component (301) is embedded into the first embedded groove.
3. The scroll compressor with the axial magnetic levitation structure as recited in claim 2, wherein the upper supporter (2) is formed with a second and a third embedded groove along a circumference thereof;
the second magnetic member (302) is fitted into the second and third fitting grooves.
4. A scroll compressor with axial magnetic levitation structure as claimed in claim 3, wherein the first magnetic member (301) is a permanent magnet or a coil matrix and the second magnetic member (302) is a permanent magnet or a coil matrix.
5. The scroll compressor with the axial magnetic suspension structure is characterized in that the outer diameter of the convex body (102) is smaller than the inner diameter of the through hole (201), and a first gap (401) is reserved between the convex body (102) and the upper support (2);
and a second gap (402) is reserved between the lower surface of the movable scroll main body (101) and the upper surface of the upper support piece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072026.6A CN110671323A (en) | 2019-11-05 | 2019-11-05 | Scroll compressor with axial magnetic suspension structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072026.6A CN110671323A (en) | 2019-11-05 | 2019-11-05 | Scroll compressor with axial magnetic suspension structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110671323A true CN110671323A (en) | 2020-01-10 |
Family
ID=69085952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911072026.6A Pending CN110671323A (en) | 2019-11-05 | 2019-11-05 | Scroll compressor with axial magnetic suspension structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110671323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049797A (en) * | 2020-08-12 | 2020-12-08 | 广州万宝集团压缩机有限公司 | Transmission mechanism of horizontal compressor, scroll compressor and temperature adjusting equipment |
-
2019
- 2019-11-05 CN CN201911072026.6A patent/CN110671323A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049797A (en) * | 2020-08-12 | 2020-12-08 | 广州万宝集团压缩机有限公司 | Transmission mechanism of horizontal compressor, scroll compressor and temperature adjusting equipment |
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