CN110701020A - High-efficiency energy-saving reciprocating permanent magnet linear compressor - Google Patents

High-efficiency energy-saving reciprocating permanent magnet linear compressor Download PDF

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Publication number
CN110701020A
CN110701020A CN201910898585.6A CN201910898585A CN110701020A CN 110701020 A CN110701020 A CN 110701020A CN 201910898585 A CN201910898585 A CN 201910898585A CN 110701020 A CN110701020 A CN 110701020A
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rotor
end plate
assembly
stator
shaft
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连伟
连叶鑫
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Individual
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/005Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders with two cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122Cylinder block
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K41/00Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02Linear motors; Sectional motors
    • H02K41/03Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

The invention relates to an efficient energy-saving reciprocating permanent magnet linear compressor which comprises a power mechanism and a compressor mechanism, wherein the power mechanism comprises a rotor assembly and stator assemblies which are provided with magnet exciting coils and are arranged in pairs. The rotor assembly comprises a rotor body and a magnet assembly, the rotor body is composed of two or more split parts and is abutted against the magnet assembly from two sides in opposite directions along the motion direction of the rotor body to form linkage, and the rotor body is in linkage connection with the piston rod. According to the split rotor, the split rotor body is abutted against the magnet assembly from two sides in opposite directions along the moving direction of the rotor body to form linkage, and the magnet assembly is not required to be supported from the thickness direction, so that the thickness and the air gap distance of the part of the magnet assembly are not additionally increased, the magnetic field strength between air gaps is further favorably improved, the effective magnetic field of a compressor motor is enhanced, and the thrust and the efficiency are effectively improved.

Description

High-efficiency energy-saving reciprocating permanent magnet linear compressor
Technical Field
The invention relates to a reciprocating permanent magnet linear compressor, in particular to a high-efficiency energy-saving reciprocating permanent magnet linear compressor.
Background
Existing reciprocating permanent magnet linear compressors typically include a power mechanism and a compressor mechanism. The power mechanism comprises stator assemblies and rotor assemblies which are provided with excitation coils and arranged in pairs; the compressor mechanism includes a cylinder, a piston, and a piston rod. The rotor assembly comprises a rotor body and an annular magnet assembly, the annular magnet assembly is fixedly arranged on the rotor body and is positioned in an air gap between the two stator assemblies which are arranged in pairs, and the piston rod is fixedly connected with the rotor body. The stator assemblies arranged in pairs generate magnetic fields by inputting exciting currents into the exciting coils, the rotor assemblies are driven to reciprocate under the interaction of the magnetic fields and the annular magnet assemblies, the piston rods and the pistons are driven, and the processes of circular air suction and compression are completed. According to the principle of the reciprocating permanent magnet linear compressor, the stronger the magnetic field intensity generated by the stator components is, the higher the power of the compressor is, and under the condition that the exciting current is not increased, the air gap between the two stator components is reduced, so that the magnetic field intensity is favorably improved, and the power is improved. However, in the conventional reciprocating permanent magnet linear compressor, the annular magnet assembly in the rotor assembly is usually attached to the surface of the rotor body, especially for the annular magnet assembly which is annularly arranged, because the thickness of the rotor body is increased, the air gap between the two stator assemblies is increased, and the magnetic field strength is influenced, so that the power is reduced, especially for a high-power permanent magnet linear compressor, a larger annular magnet assembly is needed, and then a thicker rotor body is needed for supporting, and a larger influence is caused on the power of the permanent magnet linear compressor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a reciprocating permanent magnet linear compressor with reasonable structure and higher efficiency.
In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency energy-saving reciprocating permanent magnet linear compressor comprises a power mechanism and a compressor mechanism, wherein the power mechanism comprises a rotor assembly and stator assemblies which are provided with magnet exciting coils and are arranged in pairs, and gaps are formed among the stator assemblies arranged in pairs; the rotor assembly comprises a rotor body and a magnet assembly, and the compressor mechanism comprises a cylinder body, a piston and a piston rod; the method is characterized in that: the rotor body is composed of two or more split parts, the magnet assemblies are movably arranged in air gaps of the stator assemblies arranged in pairs, the two or more split parts of the rotor body oppositely abut against the magnet assemblies from two sides along the motion direction of the rotor body to form linkage, the rotor assemblies are movably arranged, and the rotor body is in linkage connection with the piston rod.
According to the technical scheme, the split rotor body is abutted against the magnet assembly from two sides in the moving direction of the rotor body in opposite directions to form linkage, and the magnet assembly is not required to be supported from the thickness direction, so that the thickness of the magnet assembly and the gap distance are not additionally increased, the magnetic field strength between the gaps is favorably improved, the effective magnetic field of a compressor motor is enhanced, and the thrust and the efficiency are effectively improved.
As a further configuration of the invention: the stator assemblies arranged in pairs comprise inner stator assemblies and outer stator assemblies, the inner stator assemblies and the outer stator assemblies are both annular, the outer diameter of each inner stator assembly is smaller than the inner diameter of each outer stator assembly, the inner stator assemblies are sleeved at the centers of the outer stator assemblies, and gaps between the inner stator assemblies and the outer stator assemblies form annular air gaps; the magnet assembly is annular to form an annular magnet assembly, and two parts of the split rotor body oppositely abut against the end faces of two sides of the annular magnet assembly from two axial sides to form linkage. The inner stator component and the outer stator component are both annular, so that larger thrust and power can be obtained in smaller overall volume.
As a further configuration of the invention: the reciprocating permanent magnet linear compressor is provided with a group of stator components arranged in pairs, a group of compressor mechanisms, a linkage shaft and a base component; the stator assembly is arranged in the stator cavity, the linkage shaft is slidably arranged on the base assembly, the rotor body is fixedly connected with the linkage shaft, and the linkage shaft is in linkage connection with the piston rod to form the rotor body which is in linkage connection with the piston rod, so that the reciprocating permanent magnet linear single-cylinder compressor is formed.
As a further configuration of the invention: the motor base assembly comprises a shaft sleeve, a left end plate and a right end plate, wherein the inner hole of the shaft sleeve is matched with the linkage shaft, the center of the left end plate and the center of the right end plate are provided with shaft holes for the linkage shaft to penetrate through, the left end plate and the right end plate are respectively and fixedly arranged at the two ends of the shaft sleeve, an annular space defined by the left end plate, the right end plate and the shaft sleeve forms a stator containing cavity, the inner stator assembly and the outer stator assembly are arranged in the stator containing cavity, and the annular magnet assembly is arranged in an air gap between the inner stator assembly and the outer stator assembly; the rotor body is composed of a left rotor and a right rotor which are arranged in a split mode, the left rotor and the right rotor are cylindrical components which are integrally formed, one end of each cylindrical component is provided with an opening, the bottom of each cylindrical component is arranged at one end of each cylindrical component, the cross section shapes of the cylindrical walls of the left rotor and the right rotor are the same as the cross section shapes of air gaps and are in clearance fit, a plurality of axial cutting grooves are formed in the cylindrical walls of the opening ends of the left rotor and the right rotor, a plurality of top claws are formed in the front portions of the cylindrical walls of the left rotor and the right rotor, slot holes which are in clearance fit with the top claws are formed in the corresponding positions of the left end plate and the right end plate, the top claws of the left rotor and the right rotor are respectively inserted into the air gaps from the slot holes of; the center of the bottoms of the left rotor and the right rotor is provided with a through hole for a linkage shaft to pass through, the linkage shaft passes through a shaft sleeve, shaft holes in the centers of the left end plate and the right end plate and the through hole in the center of the bottoms of the left rotor and the right rotor, the linkage shaft and the shaft sleeve are axially arranged in a relatively sliding manner, and two ends of the linkage shaft are respectively fixedly connected with the left rotor and the right rotor to form axial linkage; the cylinder body is a cylindrical component with an opening at one end and a bottom at the other end, a cylinder chamber is arranged in the cylinder body, the opening end of the cylinder body is opposite to and fixedly connected with the left end plate, the piston is arranged in the cylinder chamber, and the end part of the linkage shaft penetrates out of the through hole to be connected with the piston rod to form linkage. Through the arrangement, the rotor body can well abut against the two end faces of the annular magnet assembly to form axial linkage, and the rotor is simple in structure and reliable in work.
As a further configuration of the invention: the reciprocating permanent magnet linear compressor is provided with a group of stator components, a linkage shaft, a base component and two groups of compressor mechanisms which are arranged in pairs; the two groups of compressor mechanisms respectively comprise a left cylinder body, a left piston rod, a right cylinder body, a right piston and a right piston rod; the stator assembly is fixedly arranged on the base assembly, the stator assembly is arranged in the stator cavity, the linkage shaft is slidably arranged on the base assembly, the rotor body is fixedly connected with the linkage shaft, and two ends of the linkage shaft are respectively in linkage connection with the left piston rod and the right piston rod to form the rotor body which is in linkage connection with the piston rods, so that the reciprocating permanent magnet linear double-cylinder compressor is formed.
As a further configuration of the invention: the motor base assembly comprises a shaft sleeve, a left end plate and a right end plate, wherein the inner hole of the shaft sleeve is matched with the linkage shaft, the center of the left end plate and the center of the right end plate are provided with shaft holes for the linkage shaft to penetrate through, the left end plate and the right end plate are respectively and fixedly arranged at the two ends of the shaft sleeve, an annular space defined by the left end plate, the right end plate and the shaft sleeve forms a stator containing cavity, the inner stator assembly and the outer stator assembly are arranged in the stator containing cavity, and the annular magnet assembly is arranged in an air gap between the inner stator assembly and the outer stator assembly; the rotor body is composed of a left rotor and a right rotor which are arranged in a split mode, the left rotor and the right rotor are cylindrical components which are integrally formed, one end of each cylindrical component is provided with an opening, the bottom of each cylindrical component is arranged at one end of each cylindrical component, the cross section shapes of the cylindrical walls of the left rotor and the right rotor are the same as the cross section shapes of air gaps and are in clearance fit, a plurality of axial cutting grooves are formed in the cylindrical walls of the opening ends of the left rotor and the right rotor, a plurality of top claws are formed in the front portions of the cylindrical walls of the left rotor and the right rotor, slot holes which are in clearance fit with the top claws are formed in the corresponding positions of the left end plate and the right end plate, the top claws of the left rotor and the right rotor are respectively inserted into the air gaps from the slot holes; the center of the bottoms of the left rotor and the right rotor is provided with a through hole for a linkage shaft to pass through, the linkage shaft passes through a shaft sleeve, shaft holes in the centers of the left end plate and the right end plate and the through hole in the center of the bottoms of the left rotor and the right rotor, the linkage shaft and the shaft sleeve are axially arranged in a relatively sliding manner, and two ends of the linkage shaft are respectively fixedly connected with the left rotor and the right rotor to form axial linkage; the left cylinder body and the right cylinder body are both cylindrical components with one ends opened and the other ends provided with bottoms, a left cylinder chamber and a right cylinder chamber are respectively arranged in the left cylinder body and the right cylinder body, the left cylinder body and the right cylinder body are arranged at the left end and the right end, the open ends of the left cylinder body and the right cylinder body are respectively opposite to and fixedly connected with the left end plate and the right end plate, the left piston and the right piston are respectively arranged in the left cylinder chamber and the right cylinder chamber, and two ends of the linkage shaft penetrate out of the through holes to be respectively connected with the left piston rod and the right. Through the arrangement, the high-efficiency energy-saving reciprocating type permanent magnet linear compressor can form double compressors, acts in two directions, and is higher in efficiency.
As a further configuration of the invention: the reciprocating type permanent magnet linear compressor is provided with two groups of stator assemblies arranged in pairs, two groups of annular magnet assemblies, a linkage shaft, a base assembly and two groups of compressor mechanisms; the two groups of compressor mechanisms respectively comprise a left cylinder body, a left piston rod, a right cylinder body, a right piston and a right piston rod; the motor base assembly is fixedly provided with two stator containing cavities, the two stator assemblies arranged in pairs are respectively arranged in the two stator containing cavities, the linkage shaft is slidably arranged on the motor base assembly, the rotor body is fixedly connected with the linkage shaft, and two ends of the linkage shaft are respectively in linkage connection with the left piston rod and the right piston rod to form the rotor body and the piston rods in linkage connection, so that the reciprocating permanent magnet linear double-cylinder compressor is formed.
As a further configuration of the invention: the engine base component comprises a shaft sleeve with an inner hole matched with the linkage shaft, a left end plate, a left middle plate, a right middle plate and a right end plate; the rotor body consists of a left rotor, a middle rotor and a right rotor which are arranged in a split manner; the center of the left end plate, the left middle plate, the right middle plate and the right end plate is provided with a shaft hole for the penetration of a linkage shaft, the left end plate, the left middle plate, the right middle plate and the right end plate are respectively and sequentially fixedly arranged on a shaft sleeve, an annular space enclosed among the left end plate, the left middle plate and the shaft sleeve forms a left stator cavity, an annular space enclosed among the right middle plate, the right end plate and the shaft sleeve forms a right stator cavity, the left stator cavity and the right stator cavity form two stator cavities, two groups of stator assemblies arranged in pairs are respectively arranged in the left stator cavity and the right stator cavity, two groups of annular magnet assemblies are respectively arranged in air gaps of the two groups of annular magnet assemblies, the left rotor and the right rotor are cylindrical components which are integrally provided with an opening at one end and a bottom at one end, the middle rotor is a straight cylindrical component, and the diameters of the left rotor, the middle rotor and the right, the section shape of the cylinder wall is the same as that of the air gap and is in clearance fit with the section shape of the cylinder wall, a plurality of axial cutting grooves are formed in the cylinder walls of the opening ends of the left rotor and the right rotor, a plurality of top claws are formed on the front parts of the cylinder walls of the left rotor and the right rotor, a plurality of axial cutting grooves are also formed in the cylinder walls of the two ends of the middle rotor, the middle rotor is arranged between the left middle plate and the right middle plate, slot holes matched with the top claw clearances are formed in the corresponding positions of the left end plate, the left middle plate, the right middle plate and the right end plate, the top claws of the left rotor, the middle rotor and the right rotor are respectively inserted into the air gap from the slot holes of the left end plate, the left middle plate, the right middle plate and the right end plate, and are respectively abutted against two end faces of two groups of annular magnet; the center of the bottoms of the left rotor and the right rotor is provided with a through hole for a linkage shaft to pass through, the linkage shaft passes through shaft holes in the centers of the shaft sleeve, the left end plate, the left middle plate, the right middle plate and the right end plate and through holes in the centers of the bottoms of the left rotor and the right rotor and inner holes of the middle rotor, the linkage shaft and the shaft sleeve are axially arranged in a relatively sliding manner, and two ends of the linkage shaft are respectively fixedly connected with the left rotor and the right rotor to form axial linkage; the left cylinder body and the right cylinder body are both cylindrical components with one ends opened and the other ends provided with bottoms, a left cylinder chamber and a right cylinder chamber are respectively arranged in the left cylinder body and the right cylinder body, the open ends of the left cylinder body and the right cylinder body are respectively opposite to and fixedly connected with the left end plate and the right end plate, the left piston and the right piston are respectively arranged in the left cylinder chamber and the right cylinder chamber, and two ends of the linkage shaft penetrate out of the through holes to be respectively connected with the left piston rod and the right piston rod to form linkage. Through setting up two sets of stator module, two sets of that set up in pairs annular magnet subassembly can make two compressors obtain double thrust, further improved power.
As a further configuration of the invention: the left cylinder body and the right cylinder body are both provided with spring containing cavities, elastic parts are arranged in the spring containing cavities, the elastic parts respectively enable the rotor assembly to have elastic damping force opposite to the moving direction of the rotor assembly, and the piston, the elastic parts and the rotor assembly form an elastic system. Through the arrangement, when the exciting current frequency adopted by the stator is the same as the resonance frequency of the elastic system, the maximum compression stroke of the compressor can be achieved with the minimum energy consumption, so that the most efficient energy saving is realized.
As a further configuration of the invention: the elastic part is a spiral compression spring, stepped shaft-shaped cavities are arranged in the left cylinder body and the right cylinder body, a cavity with a smaller diameter in each stepped shaft-shaped cavity forms a cylinder chamber, a cavity with a larger diameter in each stepped shaft-shaped cavity forms a spring cavity, the diameter of each spring cavity is in clearance fit with the diameters of the compression spring, the left rotor and the right rotor, one end of each compression spring elastically abuts against a shoulder step of each cavity, and the other end of each compression spring elastically abuts against the end face of the left rotor or the right rotor to form the elastic system.
As a further configuration of the invention: and a groove in clearance fit with the end part of the compression spring is arranged on the shoulder step of the cavity, one end of the compression spring is positioned in the groove, and the other end of the compression spring elastically abuts against the end surface of the left rotor or the right rotor to form the elastic system.
As a further configuration of the invention: the magnet assembly is integrally formed of a permanent magnet.
As a further configuration of the invention: the magnet assembly comprises a support and a plurality of permanent magnets, and the permanent magnets are embedded on the support. The support matches and clearance fit's cyclic annular component by thickness and air gap, the even interval in edge of support sets up a plurality of rectangle breach, and the breach both sides are the arc recess setting, the permanent magnet matches for shape and thickness and breach, and the radian with the tile shape that the support diameter matches, both sides marginal cross-section are the arc, matches with breach both sides arc recess, the permanent magnet is inserted and is established constitute in the breach annular magnet subassembly. The magnet assembly is formed by embedding the permanent magnets into the support, so that the cost can be reduced, and the manufacturing is convenient.
Drawings
FIG. 1 is a sectional view showing the internal structure of embodiment 1 of the present invention;
FIG. 2 is a sectional view showing the internal structure of embodiment 2 of the present invention;
FIG. 3 is a partially exploded view of the structure of embodiment 2 of the present invention;
FIG. 4 is a second partially exploded view of the structure of embodiment 2 of the present invention;
FIG. 5 is a third partially exploded view of the structure of embodiment 2 of the present invention;
fig. 6 is a schematic perspective view of a stand assembly according to embodiment 2 of the present invention;
FIG. 7 is a schematic perspective view of a left rotor and a right rotor according to an embodiment of the present invention;
FIG. 8 is a schematic perspective view of an embodiment 3 of the present invention;
FIG. 9 is a sectional view showing the internal structure of embodiment 3 of the present invention;
FIG. 10 is a schematic perspective view of a stand assembly according to embodiment 3 of the present invention
FIG. 11 is a partial exploded view of the structure of embodiment 3 of the present invention;
FIG. 12 is a second partially exploded view of the structure of embodiment 3 of the present invention;
FIG. 13 is a perspective view of an embodiment of a magnet assembly of the present invention;
fig. 14 is an exploded view of an embodiment of a magnet assembly of the present invention.
Detailed Description
The invention relates to an efficient energy-saving reciprocating permanent magnet linear compressor, which comprises a power mechanism and a compressor mechanism, wherein the power mechanism comprises a rotor assembly and stator assemblies which are provided with magnet exciting coils and are arranged in pairs. The stator assemblies arranged in pairs can be arranged in pairs up and down or in pairs inside and outside a concentric ring shape, and gaps between the stator assemblies arranged in pairs form air gaps. The compressor mechanism includes a cylinder, a piston, and a piston rod. The rotor assembly comprises a rotor body and a magnet assembly, the rotor body is composed of two or more split parts, the two or more split parts abut against the magnet assembly from two sides in opposite directions along the motion direction of the rotor body to form linkage, the rotor assembly is movably arranged, the magnet assembly is movably arranged in an air gap of the stator assemblies arranged in pairs, and the rotor body is in linkage connection with the piston rod to drive the piston rod and the piston to do reciprocating motion, so that the function of the compressor is completed. If the compressor mechanism is arranged at one end only, the single-cylinder reciprocating type permanent magnet linear compressor can be formed, and if the compressor mechanisms are arranged at two ends, the double-cylinder reciprocating type permanent magnet linear compressor can be formed.
For the stator assemblies which are arranged in a concentric ring shape in a pair mode, the stator assemblies preferably comprise an inner stator assembly and an outer stator assembly, the inner stator assembly and the outer stator assembly are both annular and preferably annular, the outer diameter of the inner stator assembly is smaller than the inner diameter of the outer stator assembly, the inner stator assembly is concentrically sleeved at the center of the outer stator assembly, and a gap between the inner stator assembly and the outer stator assembly forms the air gap; the magnet assembly is annular to form an annular magnet assembly, and two parts of the split rotor body oppositely abut against the end faces of two sides of the annular magnet assembly from two axial sides to form linkage.
The invention will be further described with reference to the accompanying drawings and preferred embodiments.
Specific example 1:
the specific embodiment takes an efficient energy-saving reciprocating type permanent magnet linear single-cylinder compressor as an example, and comprises a power mechanism, a linkage shaft 4, a base assembly and a group of compressor mechanisms.
As shown in fig. 1, the base component comprises a shaft sleeve 1 with an inner hole matched with a linkage shaft 4, a left end plate 2 and a right end plate 3, the diameter of the left end plate 2 and the diameter of the right end plate 3 are preferably the same as the diameter of an outer stator component, the left end plate 2 and the right end plate 3 are symmetrically arranged, the centers of the left end plate 2 and the right end plate 3 are provided with shaft holes 17 for the linkage shaft 4 to penetrate, the left end plate 2 and the right end plate 3 can be respectively and fixedly arranged at two ends of the shaft sleeve 1 in a pressing nut 5 or tight fit mode, and an annular space enclosed among the left end plate 2, the right end plate 3 and the shaft sleeve 1 forms a stator accommodating cavity 6.
The power mechanism comprises a rotor assembly and stator assemblies which are provided with magnet exciting coils and are arranged in pairs. The stator assembly is composed of an inner stator assembly 7 and an outer stator assembly 8, the inner stator assembly 7 and the outer stator assembly 8 are both circular rings, the outer diameter of the inner stator assembly 7 is smaller than the inner aperture of the outer stator assembly 8, the inner stator assembly 7 is concentrically sleeved at the center of the outer stator assembly 8, the inner aperture of the inner stator assembly 7 is matched with the outer diameter of the shaft sleeve 1, the stator assembly composed of the inner stator assembly 7 and the outer stator assembly 8 is arranged in the stator accommodating cavity 6, and the gap between the inner stator assembly 7 and the outer stator assembly 8 forms the air gap 9.
The mover assembly includes a mover body and a magnet assembly 10. The magnet assembly 10 is annular to form a ring-shaped magnet assembly 10, and the diameter and thickness of the magnet assembly 10 are matched with the air gap 9 and are in clearance fit, so that the magnet assembly can reciprocate in the air gap 9. The magnet assembly 10 may be integrally formed of a correspondingly shaped annular permanent magnet; the magnet assembly 10 may also include a bracket 1001 and a plurality of permanent magnets 1002, and the plurality of permanent magnets 1002 are embedded in the bracket 1001, which is adopted in this embodiment. Specifically, the bracket 1001 may be an annular member having a thickness matching the air gap 9 and a clearance fit, and preferably is a metal ring made of a non-magnetic conductive metal such as a stainless steel band, the edge of the bracket 1001 is uniformly provided with a plurality of rectangular notches 1003 at intervals, two sides of the notch 1003 are provided with arc grooves, the permanent magnet 1002 is shaped and has a thickness matching the notch 1003, the arc matches the diameter of the bracket 1001, the cross section of the two side edges is arc and matches the arc grooves on the two sides of the notch 1003, the permanent magnet 1002 is inserted into the notch 1003 to form the annular magnet assembly 10, and the annular magnet assembly 10 is disposed in the air gap 9 between the inner stator assembly 7 and the outer stator assembly 8.
In the present embodiment, as shown in fig. 7, the mover body is composed of a left mover 11 and a right mover 12 which are separately arranged. The left rotor 11 and the right rotor 12 are both integrally cylindrical members with one end open and the other end provided with a bottom, and are symmetrically arranged. The section shapes of the cylinder walls of the left rotor 11 and the right rotor 12 are the same as the section shape of the air gap 9, the diameters of the cylinder walls are matched to form clearance fit, a plurality of axial cutting grooves 13 are arranged on the cylinder walls at the opening ends of the left rotor 11 and the right rotor 12, the cutting grooves 13 are preferably uniformly distributed, so that a plurality of top claws 14 are formed at the front parts of the cylinder walls of the left rotor 11 and the right rotor 12, slot holes 16 which are in clearance fit with the top claws 14 are arranged at the corresponding positions of the left end plate 2 and the right end plate 3, the top claws 14 of the left rotor 11 and the right rotor 12 are respectively inserted into the air gap 9 from the slot holes 16 of the left end plate 2 and the right end plate 3, and abut against the end faces at two sides of the annular magnet.
The utility model discloses a motor rotor, including left active cell 11 and right active cell 12, the center of left active cell 11 and right active cell 12 bottom is equipped with the perforation 15 that supplies universal driving shaft 4 to pass, left active cell 11 and right active cell 12 are coaxial to be set up the left end board 2 and the 3 outsides of right end board, universal driving shaft 4 passes axle sleeve 1 shaft hole 17 at left end board 2 and right end board 3 center reaches the perforation 15 at left active cell 11 and right active cell 12 bottom center, universal driving shaft 4 sets up with axle sleeve 1 axial slidable relatively, universal driving shaft 4 both ends form the axial linkage with left active cell 11 and right active cell 12 fixed connection respectively.
The compressor mechanism comprises a cylinder body 18, a piston 19 and a piston rod 20, wherein the cylinder body 18 is a cylindrical component with one end open and the other end provided with a bottom, a cylinder chamber 1801 is arranged in the cylinder body, the diameter of the open end is preferably the same as that of the left end plate 2 and the right end plate 3, the open end of the cylinder body 18 is opposite to and fixedly connected with the left end plate 2 or the right end plate 3, in this embodiment, the open end of the cylinder body 18 is opposite to and fixedly connected with the right end plate 3, the left end plate 2 is fixedly connected with an end cover 34, the center of the end cover 34 is provided with a shaft hole which is in sliding fit with the end part of the linkage shaft 4, the piston 19 is arranged in a cylinder chamber 1801, two ends of the linkage shaft 4 penetrate out of the through hole 15, one end of the linkage shaft is connected with the piston rod 20 to form linkage, and the other end of the linkage shaft is in sliding fit with the shaft hole in the center of the end cover 34 to form the reciprocating type permanent magnet linear single-cylinder compressor.
Specific example 2:
in the embodiment, an energy-efficient reciprocating type permanent magnet linear double-cylinder compressor is taken as an example, and as shown in fig. 2, the energy-efficient reciprocating type permanent magnet linear double-cylinder compressor comprises a power mechanism, a linkage shaft 4, a base assembly and two groups of compressor mechanisms. The stator assembly is fixedly arranged on the base assembly, the stator assembly is arranged in the stator cavity, the linkage shaft is slidably arranged on the base assembly, the rotor body is fixedly connected with the linkage shaft, and two ends of the linkage shaft are respectively in linkage connection with the left piston rod and the right piston rod to form the rotor body which is in linkage connection with the piston rods, so that the reciprocating permanent magnet linear double-cylinder compressor is formed.
As shown in fig. 3-5, in this embodiment, the base assembly includes a shaft sleeve 1, a left end plate 2, and a right end plate 3, in which an inner hole is matched with the linkage shaft 4, diameters of the left end plate 2 and the right end plate 3 are preferably the same as a diameter of the outer stator assembly, the left end plate 2 and the right end plate 3 are symmetrically disposed, a shaft hole 17 for the linkage shaft 4 to penetrate is disposed at centers of the left end plate 2 and the right end plate 3, the left end plate 2 and the right end plate 3 can be respectively and fixedly disposed at two ends of the shaft sleeve 1 in a pressing nut 5 or tight fitting manner, and an annular space enclosed between the left end plate 2, the right end plate 3, and the shaft sleeve 1 forms a stator accommodating cavity 6, as shown in fig. 6.
The power mechanism comprises a rotor assembly and stator assemblies which are provided with magnet exciting coils and are arranged in pairs. The stator assembly is composed of an inner stator assembly 7 and an outer stator assembly 8, the inner stator assembly 7 and the outer stator assembly 8 are both circular rings, the outer diameter of the inner stator assembly 7 is smaller than the inner aperture of the outer stator assembly 8, the inner stator assembly 7 is concentrically sleeved at the center of the outer stator assembly 8, the inner aperture of the inner stator assembly 7 is matched with the outer diameter of the shaft sleeve 1, the stator assembly composed of the inner stator assembly 7 and the outer stator assembly 8 is arranged in the stator accommodating cavity 6, and the gap between the inner stator assembly 7 and the outer stator assembly 8 forms the air gap 9.
The mover assembly includes a mover body and a magnet assembly 10. The magnet assembly 10 is annular to form a ring-shaped magnet assembly 10, and the diameter and thickness of the magnet assembly 10 are matched with the air gap 9 and are in clearance fit, so that the magnet assembly can reciprocate in the air gap 9. The magnet assembly 10 may be integrally formed of a corresponding annular permanent magnet; the magnet assembly 10 may also include a bracket 1001 and a plurality of permanent magnets 1002, and the plurality of permanent magnets 1002 are embedded in the bracket 1001, which is adopted in this embodiment. Specifically, the bracket 1001 may be formed by an annular member having a thickness matching the air gap 9 and a clearance fit, the edge of the bracket 1001 is uniformly provided with a plurality of rectangular notches 1003 at intervals, two sides of each notch 1003 are provided with arc grooves, the permanent magnet 1002 is in a tile shape having a shape and a thickness matching the notch 1003, a radian matching the diameter of the bracket 1001, the cross sections of the edges of the two sides are arc shapes and match the arc grooves on the two sides of the notch 1003, the permanent magnet 1002 is inserted into the notch 1003 to form the annular magnet assembly 10, and the annular magnet assembly 10 is disposed in the air gap 9 between the inner stator assembly 7 and the outer stator assembly 8.
In this embodiment, the mover body is composed of a left mover 11 and a right mover 12 which are separately arranged. The left rotor 11 and the right rotor 12 are both integrally cylindrical members with one end open and the other end provided with a bottom, and are symmetrically arranged. The section shapes of the cylinder walls of the left rotor 11 and the right rotor 12 are the same as the section shape of the air gap 9, the diameters of the cylinder walls are matched to form clearance fit, a plurality of axial cutting grooves 13 are formed in the cylinder walls at the opening ends of the left rotor 11 and the right rotor 12, the cutting grooves 13 are uniformly distributed, a plurality of top claws 14 are formed at the front parts of the cylinder walls of the left rotor 11 and the right rotor 12, slot holes 16 which are matched with the top claws 14 in a clearance fit are formed in the corresponding positions of the left end plate 2 and the right end plate 3, the top claws 14 of the left rotor 11 and the right rotor 12 are respectively inserted into the air gap 9 from the slot holes 16 of the left end plate 2 and the right end plate 3, and abut against the end faces at two sides of the annular magnet assembly.
The utility model discloses a motor rotor, including left active cell 11 and right active cell 12, the center of left active cell 11 and right active cell 12 bottom is equipped with the perforation 15 that supplies universal driving shaft 4 to pass, left active cell 11 and right active cell 12 are coaxial to be set up the left end board 2 and the 3 outsides of right end board, universal driving shaft 4 passes axle sleeve 1 shaft hole 17 at left end board 2 and right end board 3 center reaches the perforation 15 at left active cell 11 and right active cell 12 bottom center, universal driving shaft 4 sets up with axle sleeve 1 axial slidable relatively, universal driving shaft 4 both ends form the axial linkage with left active cell 11 and right active cell 12 fixed connection respectively.
The two groups of compressor mechanisms respectively comprise a left cylinder body 21, a left piston 22, a left piston rod 23, a right cylinder body 24, a right piston 25 and a right piston rod 26; the left cylinder body 21 and the right cylinder body 24 are both cylindrical components with an opening at one end and bottoms at the other end, the left cylinder body 21 and the right cylinder body 24 are preferably identical in structure and symmetrically arranged, the diameters of the opening ends of the left cylinder body 21 and the right cylinder body 24 are preferably identical to the diameters of the left end plate 2 and the right end plate 3, a left cylinder chamber 2101 is arranged inside the left cylinder body 21, a left cylinder chamber 2401 is arranged inside the right cylinder body 24, the opening ends of the left cylinder body 21 and the right cylinder body 24 are respectively opposite to and fixedly connected with the left end plate 2 and the right end plate 3, the left piston 22 is arranged in the left cylinder chamber 2101, the right piston 23 is arranged in the right cylinder chamber 2401, and the end of the linkage shaft 4 penetrates out of the through hole 15 to be connected with the left piston rod 23 and the right piston rod 26 respectively to form linkage. After the double compressors are formed, the double compressors can do work in two directions, and the efficiency is higher.
In order to further improve the efficiency of the compressor, it is preferable that each of the left cylinder 21 and the right cylinder 24 is provided with a spring cavity 27, an elastic member 28 is disposed in the spring cavity 27, and the elastic member 28 respectively enables the mover assembly to have an elastic damping force opposite to the moving direction of the mover assembly, so that the piston, the piston rod, the elastic member 28 and the mover assembly form an elastic system.
Specifically, in this embodiment, the elastic member 28 is a helical compression spring, stepped shaft-shaped cavities are provided in the left cylinder body 21 and the right cylinder body 24, a smaller diameter cavity of the stepped shaft-shaped cavities forms a cylinder chamber, a larger diameter cavity of the stepped shaft-shaped cavities forms the spring cavity 27, the diameter of the spring cavity 27 is in clearance fit with the diameters of the compression spring, the left rotor 11 and the right rotor 12, one end of the compression spring elastically abuts against a shoulder 29 of the cavity, and the other end elastically abuts against an end surface of the left rotor 11 or the right rotor 12 to form the elastic system.
A groove 30 in clearance fit with the end of the compression spring is arranged on the shoulder step 29 of the cavity, one end of the compression spring is positioned in the groove 30, and the other end of the compression spring elastically abuts against the end face of the left rotor 11 or the right rotor 12 to form the elastic system.
According to the efficient energy-saving permanent magnet linear double-cylinder compressor, the pair of elastic parts are arranged in the linear motor double-cylinder compressor, so that the rotor has elastic damping force opposite to the moving direction of the rotor, the piston, the pair of elastic parts and the rotor form an elastic system, and the exciting current frequency of the stator is matched with the resonance frequency of the elastic system. Through the arrangement, when the exciting current frequency adopted by the stator is the same as the resonance frequency of the elastic system, the maximum compression stroke of the compressor can be achieved with the minimum energy consumption, so that the most efficient energy saving is realized.
Specific example 3:
the invention can also increase the thrust by increasing the number of stator components, and improve the power of the compressor. Namely, two groups of stator assemblies which are arranged in pairs, two groups of annular magnet assemblies, a linkage shaft, a base assembly and two groups of compressor mechanisms are arranged in the reciprocating type permanent magnet linear compressor; the two groups of compressor mechanisms respectively comprise a left cylinder body, a left piston rod, a right cylinder body, a right piston and a right piston rod; the motor base assembly is fixedly provided with two stator containing cavities, the two stator assemblies arranged in pairs are respectively arranged in the two stator containing cavities, the linkage shaft is slidably arranged on the motor base assembly, the rotor body is fixedly connected with the linkage shaft, and two ends of the linkage shaft are respectively in linkage connection with the left piston rod and the right piston rod to form the rotor body and the piston rods in linkage connection, so that the reciprocating permanent magnet linear double-cylinder compressor is formed.
The embodiment takes a reciprocating permanent magnet linear double-cylinder compressor with double thrust as an example, and comprises a power mechanism, a universal driving shaft 4, a base assembly and two groups of compressor mechanisms.
As shown in fig. 8-12, the base assembly comprises a shaft sleeve 1 with an inner hole matched with a linkage shaft 4, a left end plate 2, a left middle plate 32, a right middle plate 33 and a right end plate 3, the diameters of the left end plate 2, left middle plate 32, right middle plate 33 and right end plate 3 are preferably the same as the outer stator assembly diameter, the left middle plate 32 and the right middle plate 33 and the left end plate 2 and the right end plate 3 are respectively arranged symmetrically, the shaft sleeve 1 comprises a left shaft sleeve 101 and a right shaft sleeve 102, the centers of the left end plate 2, the left middle plate 32, the right middle plate 33 and the right end plate 3 are provided with shaft holes 17 for the universal driving shaft 4 to penetrate, the left end plate 2 and the left middle plate 32 can be respectively and fixedly arranged at the two ends of the left shaft sleeve 101 in a compression nut 5 or tight fit mode, an annular space enclosed among the left end plate 2, the left middle plate 32 and the left shaft sleeve 101 forms a left stator containing cavity 601; the right middle plate 33 and the right end plate 3 can be respectively and fixedly arranged at two ends of the right shaft sleeve 102 in a pressing nut 5 or tight fit mode, an annular space enclosed among the right middle plate 33, the right end plate 3 and the right shaft sleeve 102 forms a right stator accommodating cavity 602, and the left stator accommodating cavity 601 and the right stator accommodating cavity 602 form the two stator accommodating cavities.
In this embodiment, the power mechanism includes two sets of stator assemblies, namely, a rotor assembly, and a left stator assembly and a right stator assembly. The left stator assembly comprises a left inner stator assembly 701 and a left outer stator assembly 801, the left inner stator assembly 701 and the left outer stator assembly 801 are both circular rings, the outer diameter of the left inner stator assembly 701 is smaller than the inner aperture of the left outer stator assembly 801, the left inner stator assembly 701 is concentrically sleeved at the center of the left outer stator assembly 801, the inner aperture of the left inner stator assembly 701 is matched with the outer diameter of the left shaft sleeve 101, the left stator assembly consisting of the left inner stator assembly 701 and the left outer stator assembly 801 is arranged in the left stator accommodating cavity 601, and the gap between the left inner stator assembly 701 and the left outer stator assembly 801 forms the air gap 9.
Similarly, the right inner stator assembly 702 and the right outer stator assembly 802 are both circular rings, the outer diameter of the right inner stator assembly 702 is smaller than the inner diameter of the right outer stator assembly 802, the right inner stator assembly 702 is concentrically sleeved at the center of the right outer stator assembly 802, the inner diameter of the right inner stator assembly 702 is adapted to the outer diameter of the right shaft sleeve 102, the right stator assembly composed of the right inner stator assembly 702 and the right outer stator assembly 802 is disposed in the right stator receptacle 602, and the gap between the right inner stator assembly 702 and the right outer stator assembly 802 forms the air gap 9.
The rotor assembly comprises a rotor body and two groups of magnet assemblies 10, and the two groups of magnet assemblies 10 are preferably identical in structure. The magnet assembly 10 is circular, and the diameter and thickness of the magnet assembly 10 are matched with the air gap 9 and are in clearance fit, so that the magnet assembly can reciprocate in the air gap 9. The magnet assembly 10 may be integrally formed by corresponding annular permanent magnets, as shown in fig. 13 and 14, the magnet assembly 10 may also include a bracket 1001 and a plurality of permanent magnets 1002, and the plurality of permanent magnets 1002 are embedded in the bracket 1001, which is adopted in this embodiment. Specifically, the bracket 1001 may be formed by an annular member having a thickness matching the air gap 9 and a clearance fit, the edge of the bracket 1001 is uniformly provided with a plurality of rectangular notches 1003 at intervals, two sides of each notch 1003 are provided with arc grooves, the permanent magnet 1002 is in a tile shape having a shape and a thickness matching the notch 1003, a radian matching the diameter of the bracket 1001, the cross sections of the edges of the two sides are arc shapes and match the arc grooves on the two sides of the notch 1003, the permanent magnet 1002 is inserted into the notch 1003 to form the annular magnet assembly 10, and the annular magnet assembly 10 is disposed in the air gap 9 between the inner stator assembly 7 and the outer stator assembly 8.
In this embodiment, the mover body is composed of three split left movers 11, a middle mover 31 and a right mover 12. The left rotor 11 and the right rotor 12 are both integrally straight cylindrical members with one end open and the other end provided with a bottom, the two are symmetrically arranged, the middle rotor 31 is a straight cylindrical member with two ends open, the diameters of the left rotor, the middle rotor 31 and the right rotor are the same, the section shape of the cylinder wall is the same as that of the air gap and is in clearance fit with the air gap,
the cylinder walls of the open ends of the left rotor and the right rotor are respectively provided with a plurality of axial cutting grooves, so that a plurality of top claws are formed at the front parts of the cylinder walls of the left rotor and the right rotor, the middle rotor 31 is arranged between the left middle plate and the right middle plate, a plurality of axial cutting grooves are also formed in the cylinder walls at the two ends of the middle rotor 31 to form a plurality of top claws, slot holes matched with the gaps of the top claws are formed in the corresponding positions of the left end plate, the left middle plate, the right middle plate and the right end plate, the top claws of the left rotor, the middle rotor 31 and the right rotor are respectively inserted into air gaps from the slot holes of the left end plate, the left middle plate, the right middle plate and the right end plate, and are oppositely abutted against two end faces of two groups of annular magnet assemblies from two sides to form; the center of the bottoms of the left rotor and the right rotor is provided with a through hole for a linkage shaft to pass through, the linkage shaft passes through shaft holes in the centers of the shaft sleeve, the left end plate, the left middle plate, the right middle plate and the right end plate and through holes in the centers of the bottoms of the left rotor and the right rotor and inner holes of the middle rotor 31, the linkage shaft and the shaft sleeve are axially arranged in a relatively sliding manner, and two ends of the linkage shaft are respectively fixedly connected with the left rotor and the right rotor to form axial linkage;
the two groups of compressor mechanisms respectively comprise a left cylinder body 21, a left piston 22, a left piston rod 23, a right cylinder body 24, a right piston 25 and a right piston rod 26; the left cylinder body 21 and the right cylinder body 24 are both cylindrical components with an opening at one end and bottoms at the other end, the left cylinder body 21 and the right cylinder body 24 are preferably identical in structure and symmetrically arranged, the diameters of the opening ends of the left cylinder body 21 and the right cylinder body 24 are preferably identical to the diameters of the left end plate 2 and the right end plate 3, a left cylinder chamber 2101 is arranged inside the left cylinder body 21, a left cylinder chamber 2401 is arranged inside the right cylinder body 24, the opening ends of the left cylinder body 21 and the right cylinder body 24 are respectively opposite to and fixedly connected with the left end plate 2 and the right end plate 3, the left piston 22 is arranged in the left cylinder chamber 2101, the right piston 23 is arranged in the right cylinder chamber 2401, and the end of the linkage shaft 4 penetrates out of the through hole 15 to be connected with the left piston rod 23 and the right piston rod 26 respectively to form linkage.
In order to further increase the efficiency of the compressor, it is also preferred in this embodiment that the piston, the piston rod, the elastic member 28 and the mover assembly form an elastic system. The specific structure is the same as the previous embodiment, and is not described herein again.
The present invention is not limited to the above embodiments, and includes various other equivalent embodiments, which can be adopted by those skilled in the art according to the disclosure of the present invention, and all of which are simple changes or modifications of the design structure and idea of the present invention, and fall into the protection scope of the present invention.

Claims (20)

1. A high-efficiency energy-saving reciprocating permanent magnet linear compressor comprises a power mechanism and a compressor mechanism, wherein the power mechanism comprises a rotor assembly and stator assemblies which are provided with magnet exciting coils and are arranged in pairs, and gaps are formed among the stator assemblies arranged in pairs; the rotor assembly comprises a rotor body and a magnet assembly, and the compressor mechanism comprises a cylinder body, a piston and a piston rod; the method is characterized in that: the rotor body is composed of two or more split parts, the magnet assemblies are movably arranged in air gaps of the stator assemblies arranged in pairs, the two or more split parts of the rotor body oppositely abut against the magnet assemblies from two sides along the motion direction of the rotor body to form linkage, the rotor assemblies are movably arranged, and the rotor body is in linkage connection with the piston rod.
2. The high efficiency energy saving reciprocating permanent magnet linear compressor of claim 1, wherein: the stator assemblies arranged in pairs comprise inner stator assemblies and outer stator assemblies, the inner stator assemblies and the outer stator assemblies are both annular, the outer diameter of each inner stator assembly is smaller than the inner diameter of each outer stator assembly, the inner stator assemblies are sleeved at the centers of the outer stator assemblies, and gaps between the inner stator assemblies and the outer stator assemblies form annular air gaps; the magnet assembly is annular to form an annular magnet assembly, and two parts of the split rotor body oppositely abut against the end faces of two sides of the annular magnet assembly from two axial sides to form linkage.
3. The high efficiency energy saving reciprocating permanent magnet linear compressor of claim 2, wherein: the reciprocating permanent magnet linear compressor is provided with a group of stator components arranged in pairs, a group of compressor mechanisms, a linkage shaft and a base component; the stator assembly is arranged in the stator cavity, the linkage shaft is slidably arranged on the base assembly, the rotor body is fixedly connected with the linkage shaft, and the linkage shaft is in linkage connection with the piston rod to form the rotor body which is in linkage connection with the piston rod, so that the reciprocating permanent magnet linear single-cylinder compressor is formed.
4. The high efficiency, energy efficient reciprocating permanent magnet linear compressor of claim 3, wherein: the motor base assembly comprises a shaft sleeve, a left end plate and a right end plate, wherein the inner hole of the shaft sleeve is matched with the linkage shaft, the center of the left end plate and the center of the right end plate are provided with shaft holes for the linkage shaft to penetrate through, the left end plate and the right end plate are respectively and fixedly arranged at the two ends of the shaft sleeve, an annular space defined by the left end plate, the right end plate and the shaft sleeve forms a stator containing cavity, the inner stator assembly and the outer stator assembly are arranged in the stator containing cavity, and the annular magnet assembly is arranged in an air gap between the inner stator assembly and the outer stator assembly; the rotor body is composed of a left rotor and a right rotor which are arranged in a split mode, the left rotor and the right rotor are cylindrical components which are integrally formed, one end of each cylindrical component is provided with an opening, the bottom of each cylindrical component is arranged at one end of each cylindrical component, the cross section shapes of the cylindrical walls of the left rotor and the right rotor are the same as the cross section shapes of air gaps and are in clearance fit, a plurality of axial cutting grooves are formed in the cylindrical walls of the opening ends of the left rotor and the right rotor, a plurality of top claws are formed in the front portions of the cylindrical walls of the left rotor and the right rotor, slot holes which are in clearance fit with the top claws are formed in the corresponding positions of the left end plate and the right end plate, the top claws of the left rotor and the right rotor are respectively inserted into the air gaps from the slot holes of; the center of the bottoms of the left rotor and the right rotor is provided with a through hole for a linkage shaft to pass through, the linkage shaft passes through a shaft sleeve, shaft holes in the centers of the left end plate and the right end plate and the through hole in the center of the bottoms of the left rotor and the right rotor, the linkage shaft and the shaft sleeve are axially arranged in a relatively sliding manner, and two ends of the linkage shaft are respectively fixedly connected with the left rotor and the right rotor to form axial linkage; the cylinder body is a cylindrical component with an opening at one end and a bottom at the other end, a cylinder chamber is arranged in the cylinder body, the opening end of the cylinder body is opposite to and fixedly connected with the left end plate, the piston is arranged in the cylinder chamber, and the end part of the linkage shaft penetrates out of the through hole to be connected with the piston rod to form linkage.
5. The high efficiency energy saving reciprocating permanent magnet linear compressor of claim 2, wherein: the reciprocating permanent magnet linear compressor is provided with a group of stator components, a linkage shaft, a base component and two groups of compressor mechanisms which are arranged in pairs; the two groups of compressor mechanisms respectively comprise a left cylinder body, a left piston rod, a right cylinder body, a right piston and a right piston rod; the stator assembly is fixedly arranged on the base assembly, the stator assembly is arranged in the stator cavity, the linkage shaft is slidably arranged on the base assembly, the rotor body is fixedly connected with the linkage shaft, and two ends of the linkage shaft are respectively in linkage connection with the left piston rod and the right piston rod to form the rotor body which is in linkage connection with the piston rods, so that the reciprocating permanent magnet linear double-cylinder compressor is formed.
6. The high efficiency and energy saving reciprocating permanent magnet linear compressor according to claim 5, wherein: the motor base assembly comprises a shaft sleeve, a left end plate and a right end plate, wherein the inner hole of the shaft sleeve is matched with the linkage shaft, the center of the left end plate and the center of the right end plate are provided with shaft holes for the linkage shaft to penetrate through, the left end plate and the right end plate are respectively and fixedly arranged at the two ends of the shaft sleeve, an annular space defined by the left end plate, the right end plate and the shaft sleeve forms a stator containing cavity, the inner stator assembly and the outer stator assembly are arranged in the stator containing cavity, and the annular magnet assembly is arranged in an air gap between the inner stator assembly and the outer stator assembly; the rotor body is composed of a left rotor and a right rotor which are arranged in a split mode, the left rotor and the right rotor are cylindrical components which are integrally formed, one end of each cylindrical component is provided with an opening, the bottom of each cylindrical component is arranged at one end of each cylindrical component, the cross section shapes of the cylindrical walls of the left rotor and the right rotor are the same as the cross section shapes of air gaps and are in clearance fit, a plurality of axial cutting grooves are formed in the cylindrical walls of the opening ends of the left rotor and the right rotor, a plurality of top claws are formed in the front portions of the cylindrical walls of the left rotor and the right rotor, slot holes which are in clearance fit with the top claws are formed in the corresponding positions of the left end plate and the right end plate, the top claws of the left rotor and the right rotor are respectively inserted into the air gaps from the slot holes; the center of the bottoms of the left rotor and the right rotor is provided with a through hole for a linkage shaft to pass through, the linkage shaft passes through a shaft sleeve, shaft holes in the centers of the left end plate and the right end plate and the through hole in the center of the bottoms of the left rotor and the right rotor, the linkage shaft and the shaft sleeve are axially arranged in a relatively sliding manner, and two ends of the linkage shaft are respectively fixedly connected with the left rotor and the right rotor to form axial linkage; the left cylinder body and the right cylinder body are both cylindrical components with one ends opened and the other ends provided with bottoms, a left cylinder chamber and a right cylinder chamber are respectively arranged in the left cylinder body and the right cylinder body, the left cylinder body and the right cylinder body are arranged at the left end and the right end, the open ends of the left cylinder body and the right cylinder body are respectively opposite to and fixedly connected with the left end plate and the right end plate, the left piston and the right piston are respectively arranged in the left cylinder chamber and the right cylinder chamber, and two ends of the linkage shaft penetrate out of the through holes to be respectively connected with the left piston rod and the right.
7. The high efficiency and energy saving reciprocating permanent magnet linear compressor according to claim 5 or 6, wherein: the left cylinder body and the right cylinder body are both provided with spring containing cavities, elastic parts are arranged in the spring containing cavities, the elastic parts respectively enable the rotor assembly to have elastic damping force opposite to the moving direction of the rotor assembly, and the piston, the elastic parts and the rotor assembly form an elastic system.
8. The high efficiency, energy saving reciprocating permanent magnet linear compressor of claim 7, wherein: the elastic part is a spiral compression spring, stepped shaft-shaped cavities are arranged in the left cylinder body and the right cylinder body, a cavity with a smaller diameter in each stepped shaft-shaped cavity forms a cylinder chamber, a cavity with a larger diameter in each stepped shaft-shaped cavity forms a spring cavity, the diameter of each spring cavity is in clearance fit with the diameters of the compression spring, the left rotor and the right rotor, one end of each compression spring elastically abuts against a shoulder step of each cavity, and the other end of each compression spring elastically abuts against the end face of the left rotor or the right rotor to form the elastic system.
9. The high efficiency, energy efficient reciprocating permanent magnet linear compressor of claim 8, wherein: and a groove in clearance fit with the end part of the compression spring is arranged on the shoulder step of the cavity, one end of the compression spring is positioned in the groove, and the other end of the compression spring elastically abuts against the end surface of the left rotor or the right rotor to form the elastic system.
10. The high efficiency energy saving reciprocating permanent magnet linear compressor of claim 2, wherein: the reciprocating type permanent magnet linear compressor is provided with two groups of stator assemblies arranged in pairs, two groups of annular magnet assemblies, a linkage shaft, a base assembly and two groups of compressor mechanisms; the two groups of compressor mechanisms respectively comprise a left cylinder body, a left piston rod, a right cylinder body, a right piston and a right piston rod; the motor base assembly is fixedly provided with two stator containing cavities, the two stator assemblies arranged in pairs are respectively arranged in the two stator containing cavities, the linkage shaft is slidably arranged on the motor base assembly, the rotor body is fixedly connected with the linkage shaft, and two ends of the linkage shaft are respectively in linkage connection with the left piston rod and the right piston rod to form the rotor body and the piston rods in linkage connection, so that the reciprocating permanent magnet linear double-cylinder compressor is formed.
11. The high efficiency, energy efficient reciprocating permanent magnet linear compressor of claim 10, wherein: the engine base component comprises a shaft sleeve with an inner hole matched with the linkage shaft, a left end plate, a left middle plate, a right middle plate and a right end plate; the rotor body consists of a left rotor, a middle rotor and a right rotor which are arranged in a split manner; the center of the left end plate, the left middle plate, the right middle plate and the right end plate is provided with a shaft hole for the penetration of a linkage shaft, the left end plate, the left middle plate, the right middle plate and the right end plate are respectively and sequentially fixedly arranged on a shaft sleeve, an annular space enclosed among the left end plate, the left middle plate and the shaft sleeve forms a left stator cavity, an annular space enclosed among the right middle plate, the right end plate and the shaft sleeve forms a right stator cavity, the left stator cavity and the right stator cavity form two stator cavities, two groups of stator assemblies arranged in pairs are respectively arranged in the left stator cavity and the right stator cavity, two groups of annular magnet assemblies are respectively arranged in air gaps of the two groups of annular magnet assemblies, the left rotor and the right rotor are cylindrical components which are integrally provided with an opening at one end and a bottom at one end, the middle rotor is a straight cylindrical component, and the diameters of the left rotor, the middle rotor and the right, the section shape of the cylinder wall is the same as that of the air gap and is in clearance fit with the section shape of the cylinder wall, a plurality of axial cutting grooves are formed in the cylinder walls of the opening ends of the left rotor and the right rotor, a plurality of top claws are formed on the front parts of the cylinder walls of the left rotor and the right rotor, a plurality of axial cutting grooves are also formed in the cylinder walls of the two ends of the middle rotor, the middle rotor is arranged between the left middle plate and the right middle plate, slot holes matched with the top claw clearances are formed in the corresponding positions of the left end plate, the left middle plate, the right middle plate and the right end plate, the top claws of the left rotor, the middle rotor and the right rotor are respectively inserted into the air gap from the slot holes of the left end plate, the left middle plate, the right middle plate and the right end plate, and are respectively abutted against two end faces of two groups of annular magnet; the center of the bottoms of the left rotor and the right rotor is provided with a through hole for a linkage shaft to pass through, the linkage shaft passes through shaft holes in the centers of the shaft sleeve, the left end plate, the left middle plate, the right middle plate and the right end plate and through holes in the centers of the bottoms of the left rotor and the right rotor and inner holes of the middle rotor, the linkage shaft and the shaft sleeve are axially arranged in a relatively sliding manner, and two ends of the linkage shaft are respectively fixedly connected with the left rotor and the right rotor to form axial linkage; the left cylinder body and the right cylinder body are both cylindrical components with one ends opened and the other ends provided with bottoms, a left cylinder chamber and a right cylinder chamber are respectively arranged in the left cylinder body and the right cylinder body, the open ends of the left cylinder body and the right cylinder body are respectively opposite to and fixedly connected with the left end plate and the right end plate, the left piston and the right piston are respectively arranged in the left cylinder chamber and the right cylinder chamber, and two ends of the linkage shaft penetrate out of the through holes to be respectively connected with the left piston rod and the right piston rod to form linkage.
12. The high efficiency and energy saving reciprocating permanent magnet linear compressor according to claim 10 or 11, wherein: the left cylinder body and the right cylinder body are both provided with spring containing cavities, elastic parts are arranged in the spring containing cavities, the elastic parts respectively enable the rotor assembly to have elastic damping force opposite to the moving direction of the rotor assembly, and the piston, the elastic parts and the rotor assembly form an elastic system.
13. The high efficiency, energy efficient reciprocating permanent magnet linear compressor of claim 12, wherein: the elastic part is a spiral compression spring, stepped shaft-shaped cavities are arranged in the left cylinder body and the right cylinder body, a cavity with a smaller diameter in each stepped shaft-shaped cavity forms a cylinder chamber, a cavity with a larger diameter in each stepped shaft-shaped cavity forms a spring cavity, the diameter of each spring cavity is in clearance fit with the diameters of the compression spring, the left rotor and the right rotor, one end of each compression spring elastically abuts against a shoulder step of each cavity, and the other end of each compression spring elastically abuts against the end face of the left rotor or the right rotor to form the elastic system.
14. The high efficiency, energy efficient reciprocating permanent magnet linear compressor of claim 13, wherein: and a groove in clearance fit with the end part of the compression spring is arranged on the shoulder step of the cavity, one end of the compression spring is positioned in the groove, and the other end of the compression spring elastically abuts against the end surface of the left rotor or the right rotor to form the elastic system.
15. The high efficiency energy saving reciprocating permanent magnet linear compressor according to any one of claims 1 to 6, characterized in that: the magnet assembly comprises a support and a plurality of permanent magnets, and the permanent magnets are embedded on the support.
16. The high efficiency, energy efficient reciprocating permanent magnet linear compressor of claim 15, wherein: the support matches and clearance fit's cyclic annular component by thickness and air gap, the even interval in edge of support sets up a plurality of rectangle breach, and the breach both sides are the arc recess setting, the permanent magnet matches for shape and thickness and breach, and the radian with the tile shape that the support diameter matches, both sides marginal cross-section are the arc, matches with breach both sides arc recess, the permanent magnet is inserted and is established constitute in the breach annular magnet subassembly.
17. The high efficiency and energy saving reciprocating permanent magnet linear compressor according to any one of claim 7, wherein: the magnet assembly comprises a support and a plurality of permanent magnets, and the permanent magnets are embedded on the support.
18. The high efficiency, energy efficient reciprocating permanent magnet linear compressor of claim 17, wherein: the support matches and clearance fit's cyclic annular component by thickness and air gap, the even interval in edge of support sets up a plurality of rectangle breach, and the breach both sides are the arc recess setting, the permanent magnet matches for shape and thickness and breach, and the radian with the tile shape that the support diameter matches, both sides marginal cross-section are the arc, matches with breach both sides arc recess, the permanent magnet is inserted and is established constitute in the breach annular magnet subassembly.
19. The high efficiency and energy saving reciprocating permanent magnet linear compressor according to claim 10 or 11, wherein: the magnet assembly comprises a support and a plurality of permanent magnets, and the permanent magnets are embedded on the support.
20. The high efficiency, energy efficient reciprocating permanent magnet linear compressor of claim 19, wherein: the magnet assembly comprises a support and a plurality of permanent magnets, and the permanent magnets are embedded on the support.
CN201910898585.6A 2019-09-23 2019-09-23 High-efficiency energy-saving reciprocating permanent magnet linear compressor Pending CN110701020A (en)

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CN201910898585.6A CN110701020A (en) 2019-09-23 2019-09-23 High-efficiency energy-saving reciprocating permanent magnet linear compressor

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KR20060091646A (en) * 2005-02-16 2006-08-21 엘지전자 주식회사 Moving assembly for linear compressor
CN205430024U (en) * 2016-03-21 2016-08-03 深圳市兆业电子科技有限公司 Hardness testing device and gentle chamber compressor
CN106382198A (en) * 2016-11-15 2017-02-08 深圳市兆业电子科技有限公司 Permanent magnet linear double-cylinder compressor
CN108832792A (en) * 2018-08-20 2018-11-16 青岛万宝压缩机有限公司 Linear compressor mover and preparation method thereof
CN212202384U (en) * 2019-09-23 2020-12-22 连伟 High-efficiency energy-saving reciprocating permanent magnet linear compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060091646A (en) * 2005-02-16 2006-08-21 엘지전자 주식회사 Moving assembly for linear compressor
CN205430024U (en) * 2016-03-21 2016-08-03 深圳市兆业电子科技有限公司 Hardness testing device and gentle chamber compressor
CN106382198A (en) * 2016-11-15 2017-02-08 深圳市兆业电子科技有限公司 Permanent magnet linear double-cylinder compressor
CN108832792A (en) * 2018-08-20 2018-11-16 青岛万宝压缩机有限公司 Linear compressor mover and preparation method thereof
CN212202384U (en) * 2019-09-23 2020-12-22 连伟 High-efficiency energy-saving reciprocating permanent magnet linear compressor

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