EP4326989A1 - Scroll-verdichter und verfahren zum betrieb des scroll-verdichters - Google Patents
Scroll-verdichter und verfahren zum betrieb des scroll-verdichtersInfo
- Publication number
- EP4326989A1 EP4326989A1 EP22722725.3A EP22722725A EP4326989A1 EP 4326989 A1 EP4326989 A1 EP 4326989A1 EP 22722725 A EP22722725 A EP 22722725A EP 4326989 A1 EP4326989 A1 EP 4326989A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- orbiter
- coupling
- torque
- coupling unit
- scroll compressor
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C29/0064—Magnetic couplings
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
-
- 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
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
-
- 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
- F04C2240/00—Components
- F04C2240/10—Stators
-
- 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
- F04C2240/00—Components
- F04C2240/20—Rotors
-
- 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
- F04C2240/00—Components
- F04C2240/40—Electric motor
-
- 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
- F04C2240/00—Components
- F04C2240/40—Electric motor
- F04C2240/401—Linear motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/14—Refrigerants with particular properties, e.g. HFC-134a
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
Definitions
- the invention relates to a scroll compressor according to patent claim 1 and a method for operating the scroll compressor according to patent claim 8.
- a scroll compressor is known from DE 102017 102645 A1.
- An improved scroll compressor can be provided in that the scroll compressor has a stator, an orbiter that can be moved relative to the stator about an orbiter axis, and a coupling device, with the stator and the orbiter engaging in one another and having at least one working chamber for compressing an in delimit the working space of fluid that can be filled, at least in sections, the coupling device having a first coupling unit arranged on the stator and a second coupling unit arranged opposite the first coupling unit on the orbiter, the first coupling unit being magnetically coupled to the second coupling unit and the The second coupling unit introduces a coupling torque acting about the orbiter axis into the orbiter.
- a drive motor for driving the orbiter can also be chosen to be weaker in terms of its design, in particular its maximum torque.
- the scroll compressor can be manufactured particularly easily and cost-effectively overall.
- the scroll compressor has a drive motor that is torque-connected to the orbiter.
- the drive motor is designed to provide a drive torque acting about the orbiter axis for driving the orbiter, with the drive torque and the coupling torque acting on the orbiter to form a compressor torque.
- the orbiter is movable from a first position through a second position back to the first position while maintaining a pivoting direction, wherein the coupling torque between the first position of the orbiter and the second position of the orbiter acts against the drive torque, wherein in the second position the Orbiter is pivoted relative to the first posi tion, wherein between the second position and the first posi tion of the orbiter, the coupling torque and the drive torque are rectified.
- a gap is arranged between the first coupling unit and the second coupling unit. This keeps wear and tear on the scroll compressor to a minimum.
- At least one of the two coupling units has a two-pole permanent magnet or a multi-pole permanent magnet for forming the magnetic coupling with the other R.
- the first coupling unit or the second coupling unit has at least one laminated core with at least two layers of a ferromagnetic material arranged next to one another in a stack.
- the layers are arranged in the axial direction in relation to the side by side.
- the stator has a spiral-shaped first wall and the orbiter has a spiral-shaped second wall, the first wall and the second wall engaging in one another and delimiting the working space at least in sections, the first coupling unit on a housing of the stator and the second coupling unit are fixed to a second outer peripheral side of the second wall of the orbiter.
- the fastening is designed to be materially bonded, for example.
- the arrangement of the second coupling unit on the second outer peripheral side of the second wall also has the advantage that in this area the second wall does not delimit the working space on the outside and there is therefore sufficient space to accommodate the coupling device.
- the external installation space of the scroll compressor is not increased by accommodating the coupling device on the inside.
- a center of a maximum extent of the first coupling unit in a tangential direction to the orbiter axis is arranged in a plane, with the orbiter axis being arranged in the plane.
- the scroll compressor described above can be operated by introducing a fluid into the working space, moving the orbiter around the orbiter axis and compressing the fluid in the working space, whereby the magnetic coupling between the first coupling unit and the second Coupling unit a coupling torque acts on the orbiter.
- R. 394003 WO 2022/223385 PCT/EP2022/059848
- the orbiter is moved from a first position via a second position back to the first position while maintaining a pivoting direction about the orbiter axis, wherein a drive torque acting about the orbiter axis is provided on the orbiter to drive the orbiter, wherein the driving torque and the coupling torque act together on the orbiter to form a compressor torque, wherein the coupling torque acts against the driving torque between the first position of the orbiter and the second position of the orbiter, wherein between the second position and the first position the coupling torque and the Drive torque are rectified.
- the fluid in the working chamber is compressed, with the coupling torque at the first working point acting counter to the drive torque at the beginning of the compression of the fluid.
- ripple in the drive torque can be greatly reduced.
- FIG. 1 shows a schematic representation of a scroll compressor according to a first embodiment
- FIG. 2 shows a sectional view along a section plane AA shown in FIG. 1 through the scroll compressor shown in FIG. 1 in an O p posi tion;
- FIG. 3 shows a sectional view along the sectional plane AA shown in FIG. 1 through the scroll compressor shown in FIG. 1 in a 180° position; R. 394003 WO 2022/223385 PCT/EP2022/059848
- FIG. 4 shows a sectional view along the sectional plane AA shown in FIG. 1 through a scroll compressor according to a second embodiment in an O p position;
- FIG. 5 shows the sectional view shown in FIG. 4 along the section plane A-A shown in FIG. 1 through the scroll compressor according to the second embodiment in a 180° position
- FIG. 6 shows a torque curve over a pivoting angle of an orbiter of the scroll compressor about an orbiter axis of the orbiter.
- Figure 1 shows a schematic representation of a scroll compressor 10 according to a first embodiment.
- the scroll compressor 10 has a stator 15 , an orbiter 20 , a drive motor 25 , a drive shaft 30 , a bearing assembly 35 , an inlet 40 , an outlet 45 , a housing 46 and a coupling device 50 .
- the stator 15 is stationary and immovable and is mechanically connected to the housing 46 of the scroll compressor 10 .
- the orbiter 20 is non-rotatably connected to the drive shaft 30, which non-rotatably connects the drive motor 25 to the orbiter 20.
- the drive shaft 30 is rotatable about an orbiter axis 55 gela siege.
- the orbiter 20 is arranged eccentrically to the orbiter axis 55 .
- the bearing arrangement 35 is designed to support forces from the orbiter 20 guided eccentrically about the orbiter axis 55 .
- FIG. 2 shows a sectional view along a sectional plane A-A shown in FIG. 1 through the scroll compressor 10 shown in FIG. 1 in a 0° position.
- the stator 15 has a first base plate 70 and a first wall 75 .
- the first base plate 70 essentially extends in a plane of rotation perpendicular to the orbiter axis 55. In the axial direction, the first base plate 70 can be arranged opposite the drive motor 25 and is mechanically connected to the housing 46.
- the first wall 75 spirals around The orbiter axis 55 is guided on one side and is axially arranged on the first base plate 70 and connected to the first base plate 70 .
- the first base plate 70 and the first wall 75 can be made in one piece and of the same material from a non-magnetic material such as aluminum.
- the inlet 40 is arranged radially on the outside of the first wall 75 between the first wall 75 and the first housing 46 .
- the outlet 45 can be arranged in the first base plate 70 essentially in a central position relative to the orbiter axis 55 .
- the inlet 40 can, for example, be fluidically connected to a refrigerant circuit of a heat pump.
- a fluid 110, in particular a refrigerant, for example R410, in a preferably gaseous state can be introduced into the scroll compressor 10 via the inlet 40.
- the outlet 45 can be fluidly connected to a heat exchanger of the heat pump, for example.
- the orbiter 20 includes a second base 80 (shown in Figure 1) and a second wall 85 (see Figure 2).
- the second wall 85 is guided in a spiral shape around the orbiter axis 55 .
- the second wall 85 is axially connected to the second base plate 80 on one side.
- the second base plate 80 is axially ver sets to the first base plate 70 is arranged.
- the second wall 85 is arranged on the second base plate 80 on an axial side facing the stator 15 and thus on a side facing away from the first base plate 70 .
- the second base plate 80 and the second wall 85 are preferably made in one piece and of the same material, for example from a non-magnetic material, for example aluminum.
- the first base plate 70 and the second base plate 80 are arranged axially offset from one another.
- the first wall 75 and the second wall 85 are arranged in relation to one another axially between the first base plate 70 and the second base plate 80 in such a way that the first wall 75 and the second wall 85 engage in one another.
- the first wall 75 and the second wall 85 delimit an inlet area 90, a compression area 95, an outlet area 100 and a movement space 101.
- the inlet area 90 is on the downstream side R. 394003 WO 2022/223385 PCT/EP2022/059848
- the first wall 75 and the second wall 85 delimit at least one working chamber 105 in the radial direction.
- the first and second walls 75, 85 preferably delimit a plurality of working chambers 105 arranged separately from one another in the circumferential direction of the orbiter axis 55.
- the downstream side closes the outlet area 100 adjoins the compressor area 95 .
- the outlet 45 opens into the outlet area 100.
- the movement space 101 is arranged radially on the outside of the second wall 85 and is delimited outwards in the radial direction by the housing 46. The movement space 101 ensures that there is sufficient space within a housing contour 125 of the housing 46 for the eccentric movement of the second wall 85 relative to the stator 15 and the housing 46 without the second wall 85 colliding with the housing 46 or the stator 15.
- the fluid 110 is introduced into the inlet area 90 via the inlet 40 .
- the fluid 110 flows in the circumferential direction along a first outer circumferential side 115 of the first wall 75 in the direction of the compressor region 95.
- the orbiter 20 When a compressor torque M G is introduced into the orbiter 20, the orbiter 20 is moved in an eccentric movement about the orbiter axis 55.
- the working space 105 In connection with the stationary, stationary stator 15, the working space 105 is moved in the circumferential direction and the working space 105 follows the spiral configuration of the first wall 75 radially inwards. As the running length increases, the volume of the respective working space 105 is reduced and the fluid 110 present in the working space 105 is compressed. The compressed fluid 110 is conveyed in the working chamber 105 into the outlet area 100 and exits the scroll compressor 10 via the outlet 45 .
- the coupling device 50 has a first coupling unit 60 and a second coupling unit 65 .
- the first coupling unit 60 is arranged on the inside on a housing contour 125 of the housing 46 of the stator 15 and is mechanically connected to the housing 46 .
- the first coupling unit 60 has, by way of example, a multi-pole permanent magnet 131 which is aligned tangentially to the orbiter axis 55 in its main extension direction.
- the multi-pole permanent magnet 131 has several north and R. 394003 WO 2022/223385 PCT/EP2022/059848 8
- the first coupling unit 60 is preferably mechanically connected to the housing contour 125 by means of a first material connection 130 .
- the first coupling unit 60 provides a magnetic field 135 through the multi-pole permanent magnet 131, which is indicated schematically by dashed lines in FIG.
- the magnetic field 135 protrudes radially inwards into the movement space 101.
- the second coupling unit 65 is arranged in the movement space 101 radially on the inside opposite the first coupling unit 60 .
- the second coupling unit 65 is arranged on a second outer peripheral side 140 of the second wall 85 and connected to the second outer peripheral side 140 by means of a second connection 145 .
- the second connection 145 can preferably be an integral and/or form-fitting connection.
- the second coupling unit 65 can be attached to the second outer peripheral side 140 by means of an adhesive connection.
- the second coupling unit 65 has a ferritic material.
- the second coupling unit 65 preferably has an arrangement of a plurality of layers 150 made of ferritic material, for example electrical steel.
- the layers 150 are arranged axially next to one another in a stack.
- a holding means (not shown in FIG. 2) can be provided in order to connect the multiple layers 150 of electrical sheet metal to one another and thus ensure that the second coupling unit 65 is securely fastened to the second wall 85 .
- the second coupling unit 65 can also have a further permanent magnet which, for example, has the same or a similar number of poles as the permanent magnet 131 of the first coupling unit 60. The difference is however, a pole arrangement of the further permanent magnet is opposite to the permanent magnet 131 of the first coupling unit 60.
- a south pole of the second coupling unit 65 is arranged facing in the radial direction opposite to, for example, a north pole of the permanent magnet 131.
- the first coupling unit 60 has an inner side 155 on a side facing the second wall 85, the inner side 155 being flat in FIG. 2, for example.
- the second coupling unit 65 has an outer side 160 on a side facing away from the second wall 85, the outer side 160 being flat, for example.
- Both the inside 155 and the outside 160 are oriented tangentially to the orbiter axis 55, for example.
- the inner side 155 and the outer side 160 are arranged opposite one another in the radial direction.
- a gap 165 is formed between the inside 155 and the outside 160 .
- the gap 165 is defined in the radial direction by a distance from the inside 155 to the outside 160 . In FIG. 2, the distance a between the inside 155 and the outside 160 is maximized.
- the gap 165 ensures that the inside 155 does not come into contact with the outside 160 during the movement of the orbiter 20 about the orbiter axis 15 . This prevents wear, in particular metal particles from entering the fluid 110 . Furthermore, it is ensured that the second coupling unit 65 can be removed from the first coupling unit 60 despite the magnetic coupling.
- the orbiter 20 is shown in the O p position relative to movement about the orbiter axis 55.
- the distance a is maximized.
- the second coupling unit 65 is arranged outside an effective effective range of the magnetic field 135, so that a magnetic coupling between the first coupling unit 60 and the second coupling unit 65 is essentially eliminated.
- FIG. 3 shows a sectional view along the section plane AA shown in FIG. 1 through the scroll compressor 10 shown in FIG. 1 in a 180 P position.
- the orbiter 20 is pivoted by 180° compared to the representation shown in FIG. 2 and is therefore in the 180° position. In this position, the distance a between the inside 155 and the first coupling unit 60 and the outside 160 of the second coupling unit 65 is minimized.
- the second coupling unit 65 is located in the effective range of the magnetic field 135, R. 394003 WO 2022/223385 PCT/EP2022/059848 10 so that the first coupling unit 60 is magnetically coupled to the second coupling unit 65.
- the second coupling unit 65 is attracted by the permanent magnet 131 of the first coupling unit 60 with a force F.
- the multi-layer design of the second coupling unit 65 and the alignment of the layers 150 radially to the orbiter axis 55 has the advantage that eddy currents are avoided when the second coupling unit 65 moves in the magnetic field 135 of the first coupling unit 60 and thus overheating of the second coupling unit 65 in the Operation of the scroll compressor 10 is avoided. Furthermore, thermal damage to the second connection 145, in particular to a hardened adhesive, is avoided as a result, in particular if the second connection 145 is designed as a material connection.
- the second coupling unit 65 is designed to be slimmer than the first coupling unit 60 in the circumferential direction, for example.
- This configuration has the advantage that the second coupling unit 65 is moved in the effective range of the magnetic field 135 for a particularly long time, and a particularly good magnetic coupling between the first coupling unit 60 and the second coupling unit 65 can thereby be ensured.
- FIG. 4 shows a sectional view along the sectional plane AA shown in FIG. 1 through a scroll compressor 10 according to a second embodiment in the O p position.
- the scroll compressor 10 is shown in the orientation shown in FIG.
- the scroll compressor 10 is essentially identical to the scroll compressor 10 shown in FIGS. 1 to 3 according to the first embodiment. In the following, only the differences between the scroll compressor 10 shown in FIG. 4 according to the second embodiment and the first embodiment of the scroll compressor 10 shown in FIGS. 1 to 3 will be discussed.
- the first coupling unit 60 has an arrangement of several layers 150 made of electrical steel.
- the second coupling unit 65 has the permanent magnet 131 by way of example.
- the embodiment shown in FIG. 4 has the advantage that a mass rotating about the orbiter axis 55 is kept particularly low by the permanent magnet 131, which is designed to be slim in the radial direction. Due to the reduced mass of the second coupling unit 65 compared to FIGS. As a result, a particularly durable scroll compressor 10 can be provided.
- the first coupling unit 60 is wider in the radial direction and in the circumferential direction than the first coupling unit 65 in Figures 2 and 3.
- Figure 5 shows the sectional view shown in Figure 4 along the sectional plane A-A shown in Figure 1 through the scroll compressor 10.
- the distance a between the outside 160 and the inside 155 of the first coupling unit 60 is minimal. Due to the wide design of the first coupling unit 60 in the circumferential direction, a particularly good magnetic coupling between the first coupling unit 60 and the second coupling unit 65 is achieved.
- FIG. 6 shows a diagram of torques acting on the orbiter 20 plotted against a pivoting angle w of the orbiter 20 about the orbiter axis 55.
- the respective torques M A , MK, M G are plotted starting at the O p position over the swivel angle w based on the O p position.
- the orbiter 20 is slewed while maintaining a sweep direction about the orbiter axis 55 from the Op position through the 180P position toward a 360P position corresponding to the Op position.
- R. 394003 WO 2022/223385 PCT/EP2022/059848
- a first graph (dashed line) of a compressor torque M G is plotted against the swivel angle w in the diagram, with the compressor torque M G being applied to the orbiter 20 and being used to compress the fluid 110 in the working chamber 105 .
- a second graph of a drive torque MA of the drive motor 25 acting about the orbiter axis 55 is plotted against the swivel angle w by means of a solid line.
- a dot-dash line shows a third graph of a coupling torque M K of the coupling device 50 plotted against the pivot angle w and acting about the orbiter axis 55.
- the first graph corresponds to a drive torque of the drive motor of a scroll compressor according to the prior art.
- the scroll compressor 10 has a first working point 170 and a second working point 175 during the pivoting movement of the orbiter 20 starting from the O p position around the orbiter axis 55 .
- the working method of the scroll compressor for a working chamber 105 is briefly discussed below.
- the orbiter 20 shown in FIGS. 2 to 5 is pivoted about the orbiter axis 55 .
- the fluid 110 has essentially been completely ejected from the working chamber 105 via the outlet 45 .
- the compressor torque M G for moving the orbiter 20 about the orbiter axis 55 reaches a first minimum 180.
- the first working point 170 is reached after moving the orbiter 20 by a starting swivel angle Ws from the O p position.
- the fluid 110 which is arranged in a (further) working chamber 105, is compacted.
- the orbiter 20 is moved about the orbiter axis 55 by a first pivoting angle wi.
- the compressor torque M G increases from the first minimum 180 to the first maximum 185 .
- a pressure of the fluid 110 in the working chamber 105 reaches a pressure maximum.
- the working chamber 105 reaches the outlet region 100. If the orbiter 20 is moved further in the pivoting direction about the orbiter axis 55, the compressed fluid is released via the pivoting angle w of the orbiter 20 R. 394003 WO 2022/223385 PCT/EP2022/059848
- the compressor torque M G is wavy over the swivel angle w and fluctuates between the first minimum 180 and the first maximum 185.
- the fluctuation in the compressor torque M G places a mechanical load on the drive motor 25 and the bearing arrangement 35 .
- a current ripple occurs when an attempt is made to electrically correct the ripple in the compressor torque M G by means of a controller.
- the coupling device 50 is designed to reduce this ripple in the compressor torque M G from the point of view of the drive motor, so that the functionality of the scroll compressor 10 is ensured and, on the other hand, the load on the drive motor 25 is relieved.
- the magnetic coupling of the first coupling unit 60 causes the magnetic attraction force F to fluctuate in value due to the movement of the orbiter 20 over the pivot angle w with the second coupling unit 65 .
- a center of the second coupling unit 65 in a main extension direction in the tangential direction is arranged in a plane 200 (cf. Figures 2 and 3) together with a center of the first coupling unit 60 in a main extension direction in the tangential direction.
- the force of attraction F acts in the plane 200 radially outwards.
- the third graph of the coupling torque M K in the O p position and the 180 P position of the orbiter 20 each has a zero crossing in the coupling torque M K .
- the center of the second coupling unit 65 is arranged outside of the plane 200 between the O p position and the 180 P position.
- the force of attraction F causes the coupling torque M K to act on the orbiter 20.
- a decrease in the field strength of the magnetic field 135 with increasing distance a in conjunction with an offset of the center of the second coupling unit 65 as a function of the pivot angle w indicates that R. 394003 WO 2022/223385 PCT/EP2022/059848
- the coupling torque M K represents a torque for the drive motor 25 that the drive motor 25 has to apply in order to move the orbiter 20 without fluid 110 about the orbiter axis 55, even if the drive motor 25 only has to actuate the coupling device 50 (i.e. without compression of the fluid 110).
- the coupling device 50 is aligned in such a way that the second maximum 190 and the second minimum 195 of the coupling torque M K between the first working point 170 and the second working point are present on the orbiter 20 during the compression of the fluid 110 in the working space 105 .
- the second coupling unit 65 is arranged closer to the first coupling unit 60 during the compression of the fluid 110 than during the ejection and introduction of the fluid 110 into the working chamber 105.
- the acting torques M G , MK, M A are explained below, beginning at the first operating point 170 .
- the drive torque M A that the drive motor 25 has to apply to drive the orbiter 20 corresponds to a sum of the compressor torque M G and the coupling torque MK.
- the compressor moment M G is the moment which is necessary for the movement of the orbiter 20 .
- the coupling torque M K acts against the drive torque M A .
- the coupling torque MK ZU has a supporting effect on the drive torque M A .
- the coupling device 50 is arranged on the orbiter 20 and the housing 46 that when the first working point 170 is reached, the coupling torque M K acts against the drive torque M A and in the direction of the compressor torque M G . Subsequent to the first working point 170, the fluid 110 is compressed in the working chamber 105, so that the pressure of the fluid 110 increases.
- the compressor torque M G that is required for compression in this phase of the scroll compressor 10 is close to the first minimum 180 and R. 394003 WO 2022/223385 PCT/EP2022/059848
- the coupling torque M K acts in the direction of the compressor torque MG and counter to the drive torque MA.
- the drive motor 25 has to apply the coupling torque M K in addition to the compressor torque M G in order to move the orbiter 20 .
- the distance a between the first coupling unit 60 and the second coupling unit 65 and the force of attraction F to the plane 200 is minimal.
- the coupling torque M K acts against the compressor torque MG, so that the drive torque MA is reduced by the coupling torque M K and the drive motor 25 is relieved.
- the coupling torque M K supports the drive motor 25 before the first maximum of the compressor torque M G is reached.
- the second coupling unit 65 is preferably arranged on the orbiter 20 in such a way that a second pivoting angle 002 between the first working point 170 and the second maximum 190 during compression is less than a third pivoting angle 003 between the second maximum 190 and the second working point 175. Furthermore the second minimum 195 can be reached at a fourth swivel angle U before the second working point 175, which can be smaller than the second swivel angle 002 or the third swivel angle 003.
- the first swivel angle 001 between the first working point 170 and the second working point 175 for compacting of the fluid 110 is greater than a fifth pivot angle 005 between the second maximum 190 and the second minimum 195.
- the configuration of the coupling device 50 described above greatly reduces the ripple of the drive torque M A and the drive torque MA is significantly smoother than the compressor torque MG.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021203857.3A DE102021203857A1 (de) | 2021-04-19 | 2021-04-19 | Scroll-Verdichter und Verfahren zum Betrieb des Scroll-Verdichters |
| PCT/EP2022/059848 WO2022223385A1 (de) | 2021-04-19 | 2022-04-13 | Scroll-verdichter und verfahren zum betrieb des scroll-verdichters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4326989A1 true EP4326989A1 (de) | 2024-02-28 |
| EP4326989B1 EP4326989B1 (de) | 2025-12-31 |
Family
ID=81603661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22722725.3A Active EP4326989B1 (de) | 2021-04-19 | 2022-04-13 | Scroll-verdichter und verfahren zum betrieb des scroll-verdichters |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12135028B2 (de) |
| EP (1) | EP4326989B1 (de) |
| KR (1) | KR20230170082A (de) |
| CN (1) | CN117178120A (de) |
| DE (1) | DE102021203857A1 (de) |
| WO (1) | WO2022223385A1 (de) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540220A (en) | 1978-09-14 | 1980-03-21 | Hitachi Ltd | Scroll fluid machinary |
| JP2710827B2 (ja) | 1989-05-26 | 1998-02-10 | 株式会社ゼクセル | スクロール流体機械 |
| JPH08261167A (ja) * | 1995-03-24 | 1996-10-08 | Toyota Autom Loom Works Ltd | 圧縮機 |
| JP3570231B2 (ja) | 1998-07-28 | 2004-09-29 | 松下電工株式会社 | スクロール型ポンプ |
| KR100741803B1 (ko) * | 2005-08-11 | 2007-07-25 | 엘지전자 주식회사 | 스크롤 압축기 및 이를 적용한 에어콘 |
| GB0600588D0 (en) * | 2006-01-12 | 2006-02-22 | Boc Group Plc | Scroll-type apparatus |
| US10683865B2 (en) * | 2006-02-14 | 2020-06-16 | Air Squared, Inc. | Scroll type device incorporating spinning or co-rotating scrolls |
| US11047389B2 (en) * | 2010-04-16 | 2021-06-29 | Air Squared, Inc. | Multi-stage scroll vacuum pumps and related scroll devices |
| DE102013020763A1 (de) | 2013-12-07 | 2015-06-11 | Daimler Ag | Scrollmaschine und eine Verwendung einer Scrollmaschine |
| US10508543B2 (en) * | 2015-05-07 | 2019-12-17 | Air Squared, Inc. | Scroll device having a pressure plate |
| JP6718223B2 (ja) * | 2015-11-20 | 2020-07-08 | 三菱重工サーマルシステムズ株式会社 | スクロール流体機械 |
| DE102017102645B4 (de) | 2017-02-10 | 2019-10-10 | Hanon Systems | Kältemittel-Scrollverdichter für die Verwendung innerhalb einer Wärmepumpe |
| GB2595722A (en) | 2020-06-05 | 2021-12-08 | Edwards Ltd | Scroll pump |
-
2021
- 2021-04-19 DE DE102021203857.3A patent/DE102021203857A1/de active Pending
-
2022
- 2022-04-13 EP EP22722725.3A patent/EP4326989B1/de active Active
- 2022-04-13 CN CN202280029686.XA patent/CN117178120A/zh active Pending
- 2022-04-13 KR KR1020237039372A patent/KR20230170082A/ko active Pending
- 2022-04-13 US US18/555,926 patent/US12135028B2/en active Active
- 2022-04-13 WO PCT/EP2022/059848 patent/WO2022223385A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP4326989B1 (de) | 2025-12-31 |
| KR20230170082A (ko) | 2023-12-18 |
| DE102021203857A1 (de) | 2022-10-20 |
| CN117178120A (zh) | 2023-12-05 |
| US20240218875A1 (en) | 2024-07-04 |
| US12135028B2 (en) | 2024-11-05 |
| WO2022223385A1 (de) | 2022-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE4203677C2 (de) | Spiralverdichter | |
| DE102005000894B4 (de) | Kolbenmotor und damit versehener Kolbenverdichter | |
| DE102016204756B4 (de) | Elektrischer Kältemittelantrieb | |
| DE19952296C2 (de) | Spiralmaschine, insbesondere Spiralverdichter | |
| DE3935571C2 (de) | ||
| DE112013001840T5 (de) | Kompressor | |
| DE4229069A1 (de) | Taumelscheiben-kaeltemittelkompressor fuer ein kuehlsystem | |
| DE102017106765A1 (de) | Elektrischer kompressor | |
| EP3670915B1 (de) | Verdrängermaschine nach dem spiralprinzip, insbesondere scrollverdichter für eine fahrzeugklimaanlage | |
| DE602006000208T2 (de) | Elektrischer Kompressor | |
| DE102019201477A1 (de) | Motorbetriebener Kompressor | |
| DE10012429A1 (de) | Elektrischer Motor mit Vibrationsdämpfung | |
| DE3717250A1 (de) | Stroemungsmaschine der spiralbauart | |
| WO2022223385A1 (de) | Scroll-verdichter und verfahren zum betrieb des scroll-verdichters | |
| WO2002014694A1 (de) | Schraubenverdichter | |
| DE10105502A1 (de) | Spiralfluidverdrängungsgerät | |
| DE102020200256A1 (de) | Scrollverdichter | |
| EP1051796B1 (de) | Hermetisch gekapselter verdichter | |
| DE102011121365B4 (de) | Spiralverdichter mit axial verschiebbarem Spiralblatt | |
| DE112008001546B4 (de) | Spiralkompressor | |
| DE102020108202B4 (de) | Schneckenverdichter | |
| DE19948965B4 (de) | Kompressor mit Schublager-Einrichtung | |
| DE69001910T2 (de) | Fluid-Kompressor. | |
| DE69615122T2 (de) | Spiralanlage zur Fluidverdrängung mit Scheibe zur axialen Dichtung | |
| DE102019208680A1 (de) | Verdrängermaschine nach dem Spiralprinzip, insbesondere Scrollverdichter für eine Fahrzeugklimaanlage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20231120 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20250725 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: F10 Free format text: ST27 STATUS EVENT CODE: U-0-0-F10-F00 (AS PROVIDED BY THE NATIONAL OFFICE) Effective date: 20251231 Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502022006635 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20260331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20251231 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20251231 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20260331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20251231 |