CN110005590B - Moving coil type linear compressor - Google Patents
Moving coil type linear compressor Download PDFInfo
- Publication number
- CN110005590B CN110005590B CN201910385881.6A CN201910385881A CN110005590B CN 110005590 B CN110005590 B CN 110005590B CN 201910385881 A CN201910385881 A CN 201910385881A CN 110005590 B CN110005590 B CN 110005590B
- Authority
- CN
- China
- Prior art keywords
- compressor
- cylinder
- exhaust
- piston
- coil
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston 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
- F04B35/04—Piston 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component 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
- F04B39/0005—Component 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 adaptations of pistons
- F04B39/0016—Component 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 adaptations of pistons with valve arranged in the piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component 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
- F04B39/0027—Pulsation and noise damping means
- F04B39/0044—Pulsation and noise damping means with vibration damping supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component 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
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
- F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component 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
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Abstract
The invention provides a moving coil type linear compressor, which comprises a compressor shell, a stator assembly and a rotor assembly, wherein the rotor assembly comprises a coil frame and a coil, the coil is wound on the coil frame, the coil frame is positioned between an inner stator and a split outer stator, and the left end of the coil frame is connected with a piston rod of a cylinder through a connecting frame; the inner ring of the split outer stator is provided with a permanent magnet ring, and the magnetic force generated between the permanent magnet ring and the coil drives the movable coil frame to move, so that the piston of the cylinder is driven to compress gas to do work. The damping support piece is of a structure with the cylindrical spring arranged between the two circular rings, plays a role in damping and supporting the internal structure of the compressor, reduces the transmission of vibration generated by the movement of the internal structure of the compressor to the shell, and has a good vibration filtering effect. The resonant spring assembly gives a certain restoring force to the piston and the rotor assembly in the whole working process of the compressor, so that the whole compressor system achieves a more ideal working state, and the stability and the reliability are good.
Description
Technical Field
The invention relates to the technical field of linear compressors, in particular to a moving-coil linear compressor.
Background
Refrigerating equipment such as refrigerators and air conditioners is an indispensable part of our daily lives. The compressor is a core component of refrigeration equipment such as a refrigerator, an air conditioner and the like, the low-temperature low-pressure refrigerant is compressed into the high-temperature high-pressure refrigerant, then the high-temperature high-pressure refrigerant enters the refrigeration cycle system to realize refrigeration through the functions of the components of the refrigeration system such as a condenser, an evaporator and the like, and the compressor continuously sucks air, compresses and discharges air, so that the circulating refrigeration work of the refrigeration equipment is realized. The compressor is driven by the motor to drive the piston to move to compress and apply work to the refrigerant, and discharges the high-temperature and high-pressure refrigerant to the exhaust pipe to provide power for refrigeration cycle. The power source of the compressor is a motor, and the motor can be divided into two types, one is a traditional rotating motor, the other is a linear motor, the compressor adopting the rotating motor is generally called a rotary compressor, and the other compressor adopting the linear motor is called a linear compressor.
At present, most domestic refrigeration equipment such as refrigerators and air conditioners adopt rotary compressors, rotary motion of a motor is converted into linear reciprocating motion of a piston by utilizing a crank-link mechanism, and the compressor has good economical efficiency, but has large friction resistance and low efficiency, and is difficult to improve in refrigeration performance. Compared with a rotary compressor, the linear compressor can save a crank-link mechanism, so that friction loss can be reduced, system efficiency is improved, and refrigeration performance is greatly improved. But the stability, efficiency, noise and service life of the existing linear compressor are to be improved.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide the moving coil type linear compressor with a novel structure, which has the advantages of compact structure, stable connection, good stability, high efficiency, low noise and long service life.
In order to achieve the above object, the present invention provides a moving coil linear compressor, including a compressor housing, a stator assembly and a rotor assembly located in the compressor housing, wherein:
the stator assembly comprises an inner stator positioned on the central axis of the compressor shell, a split outer stator arranged around the inner stator, and end covers for fixing the split outer stator, wherein the end covers are supported at two ends of the compressor shell through damping supporting pieces;
the rotor assembly comprises a coil frame and a coil, the coil is arranged between the inner stator and the split outer stator and wound on the coil frame, and the left end of the coil frame is connected with a piston rod of the air cylinder through a connecting frame;
the left end of the split outer stator is provided with a resonant spring component which is used for giving a certain restoring force to the piston of the cylinder and the rotor component in the working process of the compressor;
the inner ring of the split outer stator is provided with a permanent magnet ring, and the coil frame is driven to move by magnetic field force generated between the permanent magnet ring and the coil, so that the piston of the cylinder is driven to compress gas to do work.
Further, an air suction and exhaust assembly for increasing the air suction and exhaust effect and reducing the working noise of the compressor in the working process of the compressor is also arranged in the compressor shell;
the air suction and exhaust assembly comprises an air suction pipe positioned at the right end of the compressor shell, an exhaust pipe positioned at the left end of the compressor shell, an air suction valve plate, an air exhaust valve plate and an air exhaust silencer;
the air suction valve sheet is fixed at the left end of the piston, and the air discharge valve sheet is arranged in an inner ring groove of the air cylinder; the right end of the exhaust silencer is connected with the left end of the cylinder in a threaded mode, and the left end of the exhaust silencer is connected with the exhaust pipe through an exhaust pipe locking cap.
Further, the air suction valve plate is of a spoke type structure, and the middle position of the air suction valve plate is a circular baffle plate; the exhaust valve plate is of a fan blade structure, one end of the exhaust valve plate is tightly attached to the inner ring groove of the cylinder, and the other end of the exhaust valve plate is tightly pressed with the right end of the exhaust silencer;
the inside of the exhaust silencer is of a labyrinth cavity structure, the right end and the inside of the exhaust silencer are respectively provided with four radial air holes which are arranged in the axial air holes and the circumferential direction, high-temperature and high-pressure gas exhausted from the exhaust valve plate enters the exhaust silencer from the right end of the exhaust silencer and the left end of the cylinder through the four radial air holes, then enters the right end of a cavity of the exhaust silencer through the axial air holes, finally enters the labyrinth cavity through the radial air holes at the right end of the inner cavity, and finally enters a refrigeration cycle system through an exhaust pipe locking cap and an exhaust pipe which are connected with the exhaust silencer.
Preferably, the resonant spring assembly comprises a plate spring and a resonant cylindrical spring, wherein the middle position of the plate spring is connected with the coil frame through a transition gasket, and the circumferential position of the outer ring of the plate spring is connected with the left end cover through a mounting plate;
the resonance cylindrical spring is arranged between the left end cover and the connecting frame and between the spring seat and the connecting frame, and the right end of the spring seat is clung to the mounting plate.
Preferably, the connecting frame is of a four-spoke type structure, the terminal end of the spoke type structure is of a two-way spring supporting seat type structure, the middle position, close to the cylinder, of the connecting frame is a threaded mounting hole for connecting a piston rod, the middle position, close to the coil frame, of the connecting frame is a threaded mounting hole for connecting the coil frame, the transition gasket, the plate spring, the connecting frame and the piston are connected into a whole through threaded connection, and the movement of the coil and the coil frame drives the plate spring, the transition gasket, the connecting frame and the piston to move, so that compression work of the compressor is realized.
Further, the damping support piece is of a structure with a cylindrical spring arranged between two circular rings, wherein two rows of support legs are radially arranged on the inner side of the outer circular ring and the outer side of the inner circular ring, 8 support legs are arranged in each row and uniformly distributed along the circumferential direction, and the damping support piece is used for fixing and supporting the cylindrical spring.
Preferably, the left damping support piece is arranged at the left flange inside the compressor shell, the outer circular ring of the left damping support piece is matched with the inner hole formed at the left flange, the inner ring of the inner circular ring of the left damping support piece is provided with threads, and the inner circular ring of the inner circular ring is in threaded connection with the threads at the outer side of the exhaust silencer, so that the left damping support piece is fixed;
the right shock-absorbing support piece is arranged at the right flange inside the compressor shell, the outer circular ring of the right shock-absorbing support piece is matched with an inner hole formed at the right flange, and the inner ring of the inner circular ring of the right shock-absorbing support piece is matched with the flange at the middle position of the right end cover, so that the right shock-absorbing support piece is fixed.
Optionally, the cylinder is of a bushing type structure, and the left inner ring of the cylinder is provided with threads for fixing the exhaust silencer;
the middle position of the inner wall of the cylinder is used for fixing an exhaust valve plate, four exhaust small holes are uniformly distributed at the circumferential position of the right side of the cylinder, and a cylinder mounting hole is formed in an ear plate at the outer side of the cylinder and is used for being connected with a left side end cover and fixedly mounting the cylinder;
the right outer ring of the cylinder is provided with threads for installing a cylinder cover, and the flow direction of the small exhaust hole is from the inner wall of the cylinder to the upper edge of the middle position of the cylinder.
Furthermore, four vent holes are uniformly distributed in the circumferential direction of the left end of the piston, a small amount of high-pressure gas at the left end of the piston reaches the contact edge of the piston and the cylinder through the vent holes when the piston is compressed, and a layer of gas film is formed between the piston and the cylinder, so that the gas bearing function is realized;
and a gas channel is formed from the middle position of the left end of the piston to the middle position of the piston rod.
Optionally, the compressor shell is divided into an upper semicircular shell and a lower square cavity structure shell, flanges are arranged at the middle positions of the left side and the right side of the upper semicircular shell and the lower square cavity structure shell, and the middle joint parts of the upper side and the lower square cavity structure shell are connected together in a welding mode;
the split type outer stator is divided into a left outer stator and a right outer stator, and a groove and a boss are respectively arranged on the contact surface of the left outer stator and the right outer stator; the inner rings of the left outer stator and the right outer stator are respectively provided with grooves for installing permanent magnet rings.
From the above, the damping support piece in the moving-magnet type compressor with the novel structure is of a structure with a cylindrical spring arranged between two circular rings, and the left end and the right end of the damping support piece are respectively provided with one damping and supporting function on the internal structure of the compressor, so that the transmission of vibration generated by the movement of the internal structure of the compressor to the shell is reduced, and the damping support piece has a better effect of filtering vibration. Secondly, this moving coil formula linear compressor is through pressing from both sides the permanent magnet between two split type outer stators to make the permanent magnet tightly fix, through reducing the distance of coil and outer stator and interior stator, thereby reduce the air gap, and then greatly improve the magnetic field utilization, reduced the possibility of magnetic leakage, finally increased motor specific thrust, promoted the efficiency of motor. And the plate spring and the resonant cylindrical spring in the resonant spring component of the moving coil type linear compressor give certain restoring force to the piston and the rotor component in the whole working process of the compressor, so that the whole compressor system achieves a more ideal working state, and in addition, the effects of preventing the piston from moving to collide with the cylinder before and removing from the cylinder after the piston is achieved, and the stability and the reliability of the whole compressor system are greatly improved. Finally, the structural design of the suction and exhaust valve plate, the piston, the cylinder and the exhaust silencer in the suction and exhaust assembly of the moving coil type linear compressor ensures that the suction and exhaust effect and the noise control in the whole working process of the compressor reach a better state.
Drawings
FIG. 1 is a schematic cross-sectional view showing the overall structure of a moving coil linear compressor according to the present invention;
fig. 2 is a left side view showing an internal structure of the moving coil type linear compressor of the present invention;
FIG. 3 is a schematic view of a left shock absorbing support of a moving coil linear compressor according to the present invention;
FIG. 4 is a longitudinal cross-sectional view of FIG. 3;
FIG. 5 is a schematic view of a right shock absorbing support of a moving coil linear compressor according to the present invention;
FIG. 6 is a longitudinal cross-sectional view of FIG. 5;
FIG. 7 is a schematic diagram showing the connection between the suction and exhaust assembly and the cylinder of the moving coil linear compressor according to the present invention;
fig. 8 is a schematic structural view of a discharge muffler of a moving coil linear compressor according to the present invention;
FIG. 9 is a longitudinal cross-sectional view of FIG. 8;
FIG. 10 is a schematic view of a structure of a discharge valve plate of a moving coil linear compressor according to the present invention;
FIG. 11 is a schematic view of a suction valve plate of a moving coil linear compressor according to the present invention;
fig. 12 is a schematic structural view of a cylinder of a moving coil linear compressor according to the present invention;
FIG. 13 is a longitudinal cross-sectional view of FIG. 12;
FIG. 14 is a schematic view of a piston and a piston rod of a moving coil linear compressor according to the present invention;
fig. 15 is a longitudinal cross-sectional view of fig. 14.
In the figure, 1, a copper hard tube; 2. PVC hard plastic exhaust pipe; 3. a left side shock absorbing support; 4. an exhaust pipe locking cap; 5. an exhaust muffler; 6. an exhaust valve plate; 7. a cylinder; 8. a suction valve plate; 9. a left side end cap; 10. a piston; 11. a connecting frame; 12. an upper compressor housing; 13. a left outer stator; 14. a right outer stator; 15. a first long bolt; 16. a mounting plate; 17. a right side end cap; 18. a right side shock absorbing support; 19. an air suction pipe; 20. a transition flange; 21. a coil rack; 22. an inner stator; 23. a coil; 24. a permanent magnet magnetic ring; 25. a lower compressor housing; 26. a transition pad; 27. a mounting base; 28. a second long bolt; 29. a spring seat; 30. a cylinder head; 31. a resonant cylinder spring; 32. and a leaf spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this invention.
It should be noted that all directional indicators (such as up, down, left, and right … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is correspondingly changed. Where "left" corresponds to the left side in fig. 1 and "right" corresponds to the right side in fig. 1.
Referring to fig. 1 to 15, the moving coil linear compressor of the present invention is described in detail, and includes compressor housings 12, 25, shock absorbing supports 3, 18, a suction and exhaust assembly, a stator assembly, a mover assembly, a resonant spring assembly, and end caps 9, 17, a mounting base 27, a mounting plate 16, and a transition gasket 26. The compressor shell is divided into an upper semicircular shell 12 and a lower square cavity structure shell 25, wherein flanges are arranged at the middle positions of the left side and the right side of the upper semicircular shell and are used for installing shock absorption supporting pieces 3 and 18, and the middle joint parts of the upper side and the lower side of the compressor shell are connected together in a welding mode.
The damping support members 3, 18 are of a structure with a cylindrical spring arranged between two circular rings, wherein two rows of supporting legs are radially arranged on the inner side of an outer circular ring and the outer side of an inner circular ring, 8 damping support members are arranged in each row and uniformly distributed along the circumferential direction and used for fixing and supporting the cylindrical spring, the left end and the right end of each damping support member are respectively provided with one damping support member, the left damping support member 3 is arranged at the left flange part inside a compressor shell, the outer circular ring of each damping support member is matched with an inner hole formed at the left flange part, the inner ring of the inner circular ring of each damping support member is provided with threads and is in threaded connection with the threads on the outer side of the exhaust silencer 5, so that the left damping support member 3 is fixed, the right damping support member 18 is arranged at the right flange part inside the compressor shell, the inner ring of each damping support member is matched with the inner hole formed at the right flange part, the middle position of the right end cover 17, the damping support members 3, 18 are applied to the inner structures of the compressor, and the inner structures of the compressor are damped and the vibration of the compressor shell is well transmitted to the compressor shell due to the fact that the vibration and vibration generated by the inner structures are reduced. The shape of the compressor shell is made to be close to the internal structure to the greatest extent in the structural design process of the compressor shell, and the compressor is small in size.
The outer wall of the square cavity structure shell 25 at the lower side of the compressor shell is welded with a mounting seat 27, and the mounting seat 27 is four rectangular thin plates and is provided with mounting holes for fixing the compressor.
The air suction and exhaust assembly comprises an air suction pipe 19, an exhaust pipe, an air suction valve plate 8, an air exhaust valve plate 6, an exhaust silencer 5 and an exhaust pipe locking cap 4, wherein the air suction pipe 19 is a copper hard pipe and is directly welded on an air suction pipe mounting hole reserved on the right side of a compressor shell in a welding mode. The exhaust pipe is divided into two parts, wherein one part is a PVC hard plastic exhaust pipe 2 led out by the internal structure of the compressor, the hard plastic exhaust pipe is locked on an exhaust silencer 5 inside the compressor through an exhaust pipe locking cap 4, the other part is a copper hard pipe 1 which is welded on an exhaust pipe mounting hole left on the left side of the compressor shell in a welding mode like the material of an air suction pipe 19, and further, the PVC hard plastic exhaust pipe 2 is inserted into the copper hard pipe 1, so that the exhaust working process of the compressor and the communication with other system components on the outer side are realized.
The cylinder 7 is of a bushing type structure, the inner ring at the left side of the cylinder 7 is provided with threads and used for fixing the exhaust silencer 5, the middle position of the inner wall of the cylinder 7 is used for fixing the exhaust valve plate 6, meanwhile, four exhaust small holes are uniformly distributed at the circumferential position at the right side of the cylinder 7, a cylinder mounting hole is formed in an ear plate at the outer side of the cylinder 7 and used for being connected with a left end cover 9 and fixedly mounting the cylinder 7, the outer ring at the right side of the cylinder 7 is provided with threads and used for mounting the cylinder cover 30, the inner ring of the cylinder cover 30 is provided with threads and used for being in threaded connection with the outer ring at the right side of the cylinder 7 to play a role of fixing the cylinder cover 30, the middle position of the cylinder cover 30 is provided with a hole allowing a piston rod of the cylinder 7 to pass through, and four weight reducing air holes are uniformly distributed in the circumferential direction. The flow direction of the small exhaust hole is from the inner wall of the cylinder to the upper edge of the middle position of the cylinder.
The outer diameter of the left end of the piston 10 of the cylinder 7 is the same as the inner diameter of the cylinder 7 in size, four vent holes are uniformly distributed in the circumferential direction, a small amount of high-pressure gas at the left end of the piston 10 reaches the contact edge of the piston 10 and the cylinder 7 through the vent holes when the piston 10 is compressed, a layer of gas film is formed between the piston 10 and the cylinder 7, and the gas film plays a role of a gas bearing, so that friction between the piston 10 and the cylinder 7 is greatly reduced, and a certain supporting effect is played on the piston 10. A gas channel is formed from the middle position of the left end of the piston 10 to the middle position of the piston rod, the gas channel is a gas suction channel, the rest positions of the left end of the piston 10 except the vent hole are gas suction valve plate fixing threaded holes for fixing the gas suction valve plates 8, the tail end of the piston rod, which is close to the piston 10, is provided with threads for fixedly mounting the piston 10, and the maximum stroke of the piston 10 is 14mm when the piston 10 reciprocates.
The air suction valve plate 8 is fixed at the left end of the piston 10, and is in a spoke type structure, the middle position is a circular baffle plate, the air suction valve plate 8 is in an opening position in an air suction state, the middle position is in radial divergence to the periphery, a valve plate fixing hole is formed in the spoke type structure and used for installing the valve plate, the divergence termination position is in a circle of circular structure, the circular structure is tightly attached to the left end face of the piston 10, and when the pressure difference between the left end and the right end of the piston 10 reaches the opening pressure of the air suction valve plate 8, the air suction valve plate 8 is opened, and the air suction valve plate starts to enter an air suction working state. The exhaust valve plate 6 is installed in an inner ring groove of the air cylinder 7, the exhaust valve plate is of a fan blade type structure, the middle position is an exhaust valve plate fixing position, one end of the exhaust valve plate is tightly attached to the middle position of the inner wall of the air cylinder 7, the other end of the exhaust valve plate is tightly pressed by the right end of the exhaust silencer 5, the outer side of the exhaust valve plate 6 is of four fan blade shapes and is used for blocking an exhaust hole of the air cylinder 7, and in the working process of the compressor, when the exhaust pressure is larger than the opening pressure of the exhaust valve plate, the exhaust valve plate 6 is opened and starts to enter an exhaust working state.
The inside of the exhaust silencer 5 is of a labyrinth cavity structure, the right end and the inside of the exhaust silencer 5 are respectively provided with four radial air holes which are axially provided with air holes and circumferentially arranged, high-temperature and high-pressure air flows through the labyrinth cavity structure, most of noise is eliminated, and then the noise enters a refrigeration cycle system, the left end of the exhaust silencer 5 is provided with a locking cap mounting threaded hole, the left end of the exhaust locking cap 4 is of a saw-tooth structure and is used for clamping and locking the PVC hard plastic exhaust pipe 2, and the right end of the exhaust locking cap 4 is provided with external threads and is connected with internal threads on the exhaust silencer 5, so that the effect of fixing the exhaust locking cap is achieved. The right end of the exhaust silencer 5 is provided with external threads and is in threaded connection with the left end of the cylinder 7, the exhaust silencer 5 is used for fixing the exhaust silencer 5, high-temperature and high-pressure gas exhausted from the exhaust valve plate 6 enters the exhaust silencer 5 from the right end of the exhaust silencer 5 and the left end of the cylinder 7 through four radial air holes, then enters the right end of a chamber of the exhaust silencer 5 through axial air holes, finally enters a labyrinth chamber through the radial air holes at the right end of an inner chamber, and finally enters a refrigeration cycle system through the exhaust pipe locking cap 4 connected with the exhaust silencer 5 and the exhausted copper hard pipe 1.
The stator assembly comprises an inner stator 22 positioned on the central axis of a compressor shell and split outer stators 13 and 14 arranged around the inner stator 22, wherein permanent magnet magnetic rings 24 with circular ring shapes are arranged on the inner rings of the split outer stators 13 and 14, the inner stator 22 is cylindrical, a mounting hole is formed in the middle position of one side of the inner stator 22, grooves are formed in the middle position of the outer ring of the inner stator 22, the inner stator 22 is connected with the split outer stator through a transition flange 20, and the transition flange 20 is I-shaped in structure and plays a role in transition support on the inner stator 22. The split type outer stator is divided into a left outer stator 13 and a right outer stator 14, grooves and bosses are respectively arranged on contact surfaces of the left outer stator 13 and the right outer stator 14, the positions of the split type outer stator are determined by matching the left outer stator and the right outer stator, coaxiality of the split type outer stator is guaranteed, grooves are respectively formed in inner rings of the left outer stator 13 and the right outer stator 14 and are used for installing permanent magnet rings 24, and the permanent magnet rings 24 are embedded into the grooves of the inner rings of the split type outer stator.
The rotor assembly comprises a coil frame 21 and coils 23, wherein the coil frame 21 is positioned between the inner stator 22 and the split outer stators 13 and 14, three bosses are arranged on the outer ring of the coil frame 21, grooves are formed between every two bosses and are used for winding the coils 23, wire guiding grooves are respectively formed in the three bosses and are used for guiding out copper wires, weight reducing holes and threaded mounting holes are formed in the end face of the left end of the three bosses, the coil is connected with a piston rod of a cylinder 7 through a connecting frame 11, and the coils 23 are made of enameled copper wires.
The resonance spring assembly is arranged at the left end of the split outer stators 13 and 14 and comprises a plate spring 32 and a resonance cylindrical spring 31, the right end face of the middle position of the plate spring 32 is tightly attached to a transition gasket 26, a plate spring mounting hole is formed in the circumferential direction of the outer ring of the plate spring 32 and used for mounting and fixing the plate spring, the transition gasket 26 is round, four threaded mounting holes are uniformly arranged in the circumferential direction of the transition gasket, and the right side of the transition gasket is tightly attached to the left end flange of the coil frame 21. The plate spring 32 is provided with involute grooves in the circumferential direction, four mounting holes are formed in the circumferential direction of the middle part of the plate spring, the positions of the four mounting holes are the same as those of the threaded mounting holes of the transition gaskets 26, and the plate spring plays a role in mounting and fixing and also plays a role in circumferentially limiting the integrated structures such as the coil 23, the coil rack 21 and the like.
The connecting frame 11 is of a four-spoke type structure, the end of the spoke type structure is of a two-way spring supporting seat type structure, a piston thread installation hole is formed in the middle position, close to the cylinder 7, of the connecting frame, four coil frame thread installation holes are formed in the middle position, close to the coil frame 21, the transition gasket 26, the plate spring 32, the connecting frame 11 and the piston 10 are connected into an integrated structure through threaded connection, and the coil 23 and the coil frame 21 move to drive the plate spring 32, the transition gasket 26, the connecting frame 11 and the piston 10 to move, so that compression work of the compressor is achieved.
In addition, two ends of the split type outer stators 13, 14 are respectively connected with the left end cover 9 and the left end cover 17 through mounting plates 16, eight mounting holes are respectively and uniformly distributed in the circumferential direction of different radial distances of the mounting plates 16, the mounting holes uniformly distributed on the inner side of the left mounting plates 16 are used for fixing the mounting plates and compressing the leaf springs 32, and the mounting holes uniformly distributed on the outer side are used for fixing the left end cover 9 and the left end cover 17. The left end cover 9 is of a four-spoke type frame body structure, a spring seat is arranged on the inner side of the left end cover 9, four cylinder mounting holes are uniformly distributed in the circumferential direction of the middle position of the left end cover, and are used for being connected with an ear plate on the outer side of the cylinder 7 and fixing the cylinder 7, and an end cover fixing hole is formed on the outer side of the right end of the left end cover 9 and is used for being connected and fixed with a left mounting plate 16. The right end cover 17 is of a four-spoke frame structure, and an end cover fixing hole is formed in the outer side of the left end of the right end cover and is fixed on the right mounting plate 16 through the end cover fixing hole.
The right end of the spring seat 29 is closely attached to the mounting plate 16, and the resonant cylinder spring 31 is mounted between the left end cover 9 and the link 11 and between the spring seat 29 and the link 11. The spring seat 29, the mounting plate 16, the plate spring 32, the split outer stators 13, 14 are coupled and fixed together by long bolts 15, 28.
The whole working process of the moving coil linear compressor comprises the following steps: when alternating current is supplied to the coil 23 of the compressor, the coil 23 generates an alternating magnetic field, in this case, the coil 23 and the coil frame 21 integrally generate magnetic field force in a permanent magnetic field formed by the permanent magnet magnetic ring due to interaction between the alternating magnetic field and the permanent magnetic field, the magnitude and the direction of the magnetic field force continuously change along with the change of the alternating magnetic field, and the generated magnetic field force further drives the coil frame 21 and other parts fixed with the coil frame to move together, so that the compressor piston is pushed to do reciprocating rectilinear motion to compress gas to do work.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The utility model provides a moving coil formula linear compressor, includes the compressor shell, is located stator module and the mover subassembly in the compressor shell, its characterized in that:
the stator assembly comprises an inner stator (22) positioned on the central axis of the compressor shell, split outer stators (13, 14) arranged around the inner stator (22), and end covers (9, 17) for fixing the split outer stators (13, 14), wherein the end covers (9, 17) are supported at two ends of the compressor shell through damping supports (3, 18);
the rotor assembly comprises a coil frame (21) positioned between the inner stator (22) and the split outer stator (13, 14) and a coil (23) wound on the coil frame (21), and the left end of the coil frame (21) is connected with a piston rod of the air cylinder (7) through a connecting frame (11);
the left end of the split outer stator (13, 14) is provided with a resonant spring component which is used for giving a certain restoring force to the piston (10) of the air cylinder (7) and the rotor component in the working process of the compressor;
a permanent magnet magnetic ring (24) is arranged on the inner ring of the split outer stator (13, 14), and the linear package frame (21) is driven to move by magnetic field force generated between the permanent magnet magnetic ring (24) and the coil (23), so that a piston of the air cylinder (7) is driven to compress air to do work;
the compressor shell is internally provided with an air suction and exhaust assembly for increasing the air suction and exhaust effect in the working process of the compressor and reducing the working noise of the compressor;
the air suction and exhaust assembly comprises an air suction pipe (19) positioned at the right end of the compressor shell, an exhaust pipe positioned at the left end of the compressor shell, an air suction valve plate (8), an exhaust valve plate (6) and an exhaust silencer (5);
the air suction valve plate (8) is fixed at the left end of the piston (10), and the air discharge valve plate (6) is arranged in an inner ring groove of the air cylinder (7); the right end of the exhaust silencer (5) is connected with the left end of the cylinder (7) through threads, and the left end of the exhaust silencer (5) is connected with the exhaust pipe through an exhaust pipe locking cap (4);
the air suction valve plate (8) is of a spoke type structure, and the middle position of the air suction valve plate is a circular baffle plate; the exhaust valve plate (6) is of a fan blade structure, one end of the exhaust valve plate is tightly attached to an inner ring groove of the air cylinder (7), and the other end of the exhaust valve plate is tightly pressed with the right end of the exhaust silencer (5);
the inside of the exhaust silencer (5) is of a labyrinth cavity structure, the right end and the inside of the exhaust silencer are respectively provided with four radial air holes which are axially provided with air holes and circumferentially arranged, high-temperature and high-pressure gas exhausted from the exhaust valve plate (6) enters the exhaust silencer (5) from the right end of the exhaust silencer (5) and the left end of the cylinder (7) through the four radial air holes, then enters the right end of a cavity of the exhaust silencer (5) through the axial air holes, finally enters the labyrinth cavity through the radial air holes at the right end of the inner cavity, and finally enters a refrigeration cycle system through an exhaust pipe locking cap (4) connected with the exhaust silencer (5) and an exhaust pipe;
four vent holes are uniformly distributed in the circumferential direction of the left end of the piston (10), a small amount of high-pressure gas at the left end of the piston reaches the contact edge of the piston (10) and the cylinder (7) through the vent holes when the piston (10) is compressed, and a layer of gas film is formed between the piston (10) and the cylinder (7), so that the gas bearing function is realized;
a gas channel is formed from the middle position of the left end of the piston (10) to the middle position of the piston rod.
2. The moving coil linear compressor as claimed in claim 1, wherein the resonant spring assembly includes a plate spring (32) and a resonant cylinder spring (31), a middle position of the plate spring (32) is connected with the coil frame (21) through a transition gasket (26), and an outer circumferential position of the plate spring (32) is connected with a left end cover (9) through a mounting plate (16);
the resonance cylindrical spring (31) is arranged between the left end cover (9) and the connecting frame (11) and between the spring seat (29) and the connecting frame (11), and the right end of the spring seat (29) is tightly attached to the mounting plate (16).
3. The moving coil linear compressor according to claim 2, wherein the connecting frame (11) is of a four-spoke structure, the spoke structure end of the connecting frame (11) is of a two-way spring supporting seat structure, the middle position of the connecting frame (11) close to the cylinder (7) is a threaded mounting hole for connecting a piston rod, the middle position of the connecting frame close to the coil frame (21) is a threaded mounting hole for connecting the coil frame (21), the transition gasket (26), the plate spring (32), the connecting frame (11) and the piston (10) are connected into a whole through threaded connection, and the coil (23) and the coil frame (21) move to drive the plate spring (32), the transition gasket (26) and the connecting frame (11) and the piston (10), so that compression work of the compressor is realized.
4. The moving coil linear compressor as set forth in claim 1, wherein the shock absorbing support members (3, 18) are of a structure having a cylindrical spring interposed between two rings, wherein two rows of support legs are provided radially inside the outer ring and outside the inner ring, wherein 8 of the support legs are uniformly distributed in each row in a circumferential direction for fixing and supporting the cylindrical spring.
5. The moving coil linear compressor as set forth in claim 4, wherein the left shock absorbing support (3) is installed at a left flange inside the compressor housing, an outer ring thereof is fitted with an inner hole formed at the left flange, an inner ring of an inner ring thereof has threads, and the inner ring is screwed with threads outside the exhaust muffler (5), thereby achieving fixation of the left shock absorbing support (3);
the right shock-absorbing support (18) is arranged at the right flange inside the compressor shell, the outer circular ring of the right shock-absorbing support is matched with an inner hole formed at the right flange, and the inner ring of the inner circular ring is matched with the flange at the middle position of the right end cover (17), so that the right shock-absorbing support (18) is fixed.
6. The moving coil linear compressor according to claim 1, characterized in that the cylinder (7) is of a bush-type structure, the left inner ring of which is threaded for fixing the exhaust muffler (5);
the middle position of the inner wall of the air cylinder (7) is used for fixing the air discharge valve plate (6), meanwhile, four air discharge small holes are uniformly distributed at the circumferential position of the right side of the air cylinder (7), and an air cylinder mounting hole is formed in an ear plate at the outer side of the air cylinder (7) and is used for being connected with a left side end cover (9) and fixedly mounting the air cylinder (7);
the right outer ring of the cylinder (7) is provided with threads for installing a cylinder cover (30), and the flow direction of the small exhaust hole is from the inner wall of the cylinder to the upper edge of the middle position of the cylinder.
7. The moving coil linear compressor as set forth in claim 1, wherein the compressor housing is divided into an upper semicircular shell (12) and a lower square cavity structure shell (25), wherein the middle positions of the left side and the right side of the compressor housing are provided with flanges, and the middle joint parts of the upper side and the lower side of the compressor housing are connected together by welding;
the split outer stator is divided into a left outer stator (13) and a right outer stator (14), and a groove and a boss are respectively arranged on the contact surface of the left outer stator and the right outer stator; the inner rings of the left outer stator (13) and the right outer stator (14) are respectively provided with grooves for installing permanent magnet rings (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385881.6A CN110005590B (en) | 2019-05-09 | 2019-05-09 | Moving coil type linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385881.6A CN110005590B (en) | 2019-05-09 | 2019-05-09 | Moving coil type linear compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110005590A CN110005590A (en) | 2019-07-12 |
| CN110005590B true CN110005590B (en) | 2023-10-20 |
Family
ID=67176444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910385881.6A Active CN110005590B (en) | 2019-05-09 | 2019-05-09 | Moving coil type linear compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110005590B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486250A (en) * | 2019-09-20 | 2019-11-22 | 上海隆彬塑胶制品有限公司 | A kind of sound energy compressor cycle structure |
| CN111306038A (en) * | 2020-03-23 | 2020-06-19 | 辽宁工程技术大学 | Linear moving-magnet compressor |
| CN112412742B (en) * | 2020-12-01 | 2022-09-02 | 辽宁工程技术大学 | Energy-saving linear compressor |
| CN112664427B (en) * | 2021-01-27 | 2022-06-28 | 辽宁工程技术大学 | Linear compressor with variable resonant frequency |
| CN114583909B (en) * | 2022-05-09 | 2022-07-12 | 山东信隆机电有限公司 | High-low voltage integrated generator set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617637A (en) * | 1992-03-17 | 1994-01-25 | Kaneko Hiroshi | Automotive muffler |
| CN1233878A (en) * | 1998-04-28 | 1999-11-03 | 松下冷机株式会社 | Linear motor and linear compressor |
| CN102200112A (en) * | 2011-01-21 | 2011-09-28 | 佛山市广顺电器有限公司 | Structure capable of air suction and sound reduction for connecting rod of compressor |
| CN103967748A (en) * | 2013-02-04 | 2014-08-06 | 海尔集团公司 | Linear compressor |
| KR20190046198A (en) * | 2017-10-25 | 2019-05-07 | 엘지전자 주식회사 | Linear compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209925168U (en) * | 2019-05-09 | 2020-01-10 | 辽宁工程技术大学 | Moving-coil linear compressor |
-
2019
- 2019-05-09 CN CN201910385881.6A patent/CN110005590B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617637A (en) * | 1992-03-17 | 1994-01-25 | Kaneko Hiroshi | Automotive muffler |
| CN1233878A (en) * | 1998-04-28 | 1999-11-03 | 松下冷机株式会社 | Linear motor and linear compressor |
| CN102200112A (en) * | 2011-01-21 | 2011-09-28 | 佛山市广顺电器有限公司 | Structure capable of air suction and sound reduction for connecting rod of compressor |
| CN103967748A (en) * | 2013-02-04 | 2014-08-06 | 海尔集团公司 | Linear compressor |
| KR20190046198A (en) * | 2017-10-25 | 2019-05-07 | 엘지전자 주식회사 | Linear compressor |
Non-Patent Citations (1)
| Title |
|---|
| 《液气锤故障分析与设计方案的改进》;李忠, 卢进南, 谢苗;《辽宁工程技术大学学报》;第29卷(S1);第110-111页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110005590A (en) | 2019-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110005590B (en) | Moving coil type linear compressor | |
| EP2818710B1 (en) | Linear compressor | |
| EP2107671B1 (en) | Reciprocating motor and a reciprocating compressor having the same | |
| CN209925168U (en) | Moving-coil linear compressor | |
| CN110043443B (en) | Moving-magnet linear compressor | |
| CN111561437B (en) | Oil-free linear compressor for heat pump system | |
| EP3186507B1 (en) | Linear compressor | |
| CN110259663B (en) | Novel moving-magnet type reciprocating linear compressor | |
| CN108518332B (en) | Linear compressor | |
| CN112412742B (en) | Energy-saving linear compressor | |
| CN220955951U (en) | Linear compressor and refrigeration equipment | |
| CN220769654U (en) | Linear compressor and refrigeration equipment | |
| CN220955952U (en) | Linear compressor and refrigeration equipment | |
| CN220769655U (en) | Linear compressor and refrigeration equipment | |
| CN220955954U (en) | Linear compressor and refrigeration equipment | |
| CN220955953U (en) | Linear compressor and refrigeration equipment | |
| CN220955950U (en) | Linear compressor and refrigeration equipment | |
| US11378069B2 (en) | Compressor | |
| KR102613226B1 (en) | Oil feeder and linear compressor including the same | |
| CN212225520U (en) | External rotor rotary compressor | |
| KR102432495B1 (en) | Linear compressor | |
| KR102231177B1 (en) | Compressor | |
| US20240110557A1 (en) | Linear compressor | |
| KR100783233B1 (en) | Reciprocating compressor | |
| KR100756746B1 (en) | Muffler for linear compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |