CN111997870B - Multi-magnet type compressor - Google Patents

Abstract

The invention discloses a multi-magnet type compressor which comprises four functional parts, namely an end cover, a stator component, a rotor component and an air suction and exhaust component. The end covers comprise a left end cover and a right end cover; the stator assembly comprises a back iron outer sleeve, a permanent magnet, an insulating plate, a piston outer sleeve and the like; the rotor assembly comprises a coil rack, a coil group, a movable sleeve, a piston rod, a piston inner sleeve, an inner stator and the like, wherein the piston is connected with the piston inner sleeve through the piston rod; the air suction and exhaust component comprises a valve cover, a blocking piece, an exhaust pipe, a buffer piece, a valve plate, a valve seat and the like; the coil group is formed by winding coils in opposite directions, is fixed in an annular magnetic field formed by permanent magnet blocks through a coil frame, generates an electromagnetic driving force after current is introduced to drive the rotor assembly to move, further compresses gas to work, and compresses low-pressure gas into high-pressure gas, so that the gas has pressure energy. The multi-magnet type compressor has the advantages of compact structure, stable operation, low noise and prolonged service life.

Description

Multi-magnet type compressor

Technical Field

The invention relates to the technical field of linear compressors, in particular to a multi-magnet linear compressor.

Background

The compressor equipment is the main energy consumption component of refrigeration systems such as refrigerators, and with the rapid development in the industry, the traditional reciprocating piston compressor is gradually replaced by a linear compressor due to the complex structure and low efficiency. The compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas, and is the heart of a refrigeration system. The refrigerating cycle comprises a gas suction pipe, a piston, a motor, a gas exhaust pipe, a gas inlet pipe, a gas exhaust pipe, an expansion pipe and a gas exhaust pipe.

The linear compressor adopts magnetic suspension principle and spiral ring fluid mechanics structure to compress gas and provide power for refrigeration. The multi-magnet type compressor proposed herein is one of linear compressors. As is well known, there are many factors that affect the service life of the compressor, and besides the structural design and manufacturing factors of the compressor itself, there are also relations between the selection of some elements (such as piston rod, valve plate, etc.) related to the use of the compressor, the operation during the trial run, etc. The compressor operates on the principle that movement causes a change in the volume of the pumping chamber, thereby compressing fluid to impart pressure energy to the fluid. The condition that must be met is that the sealed volume of the pump chamber changes. The reciprocating compressor on the market at present usually has the defects of unstable flow, larger volume than the compressor under the same flow, complex mechanism, large fund consumption, more parts, easy failure, difficult maintenance and the like.

In contrast, the linear compressor driven by the linear motor receives more and more attention, a crank-link mechanism can be omitted, the friction loss is reduced, and the system efficiency and reliability are improved. Compared with other types of compressors, the multi-magnet type compressor has the advantages of compact structure, smaller volume, higher power, higher efficiency and lower loss.

In order to further improve the performance and the operation efficiency of the compressor and prolong the service life, the structure of the compressor needs to be further optimized and designed on the basis of the structure of the existing compressor, so that the structure of the compressor is more compact, the volume of the compressor is reduced, and the volume of the compressor is fully utilized to improve the working efficiency.

Disclosure of Invention

In view of the above technical problems, an object of the present invention is to provide a multiple-magnet type compressor with a novel structure, which adopts multiple permanent magnets and coils to form a combined body, thereby simplifying the overall size, reducing unnecessary air gaps, reducing the possibility of magnetic flux leakage, fully utilizing the size of the compressor, and arranging large-area permanent magnets to further improve the working efficiency of the compressor.

In order to achieve the purpose, the invention provides a multi-magnet type compressor, which comprises an end cover, a stator assembly, a rotor assembly and an air suction and exhaust assembly, wherein the stator assembly, the rotor assembly and the air suction and exhaust assembly are positioned in the end cover of the compressor;

the permanent magnet inlays to be established in the recess of returning indisputable overcoat inner wall equipartition, the permanent magnet design big, well, little three kinds of models altogether, this model is according to the thickness definition that magnetizes, and the permanent magnet of three kinds of models is symmetrical in proper order arranges and forms a set ofly, and the equipartition is in the corresponding back indisputable overcoat inner groovy of returning.

The rotor assembly comprises a coil rack, a coil assembly, a movable sleeve, a piston rod, a piston inner sleeve, an inner stator, a resonant spring, a spring locking plate and a moving ball assembly located between the inner stator and the movable sleeve, and the piston is connected with the piston inner sleeve through the piston rod.

The air suction and exhaust assembly comprises a valve cover, a check ring, an exhaust pipe, a buffer sheet, a valve block, a lift cushion, a valve seat and the like, the exhaust valve is formed by the components, the internal valve block is opened under the action of internal high-pressure gas, and the high-pressure gas is discharged out of the compressor through the exhaust pipe to complete the exhaust process.

The coil group is two coils with opposite winding directions and passes through the coil rack is fixed in an annular magnetic field formed by permanent magnet magnets, when the compressor is electrified, the equipment enters a working state, current with opposite directions flows in the two coils, the coil and the permanent magnet group generate electromagnetic force under the combined action, the piston is pushed to move rightwards, the piston rod is driven to move rightwards, the resonant spring is compressed and retracted, the volume of a cavity between the piston inner sleeve and the piston outer sleeve is further changed, and when the gas pressure in the cavity is large enough, the valve plate is forced to be opened, and gas with large pressure is discharged.

Further, a suction and exhaust assembly is arranged in the valve cover; the air suction and exhaust assembly comprises a check ring, an exhaust pipe, a buffer sheet, a valve plate, a lift pad and a valve seat, wherein the check ring, the buffer sheet, the valve plate, the lift pad and the valve seat are all arranged at the center line of the valve cover; the left end of the valve cover is tightly connected with the right end of the right end cover through four locking screw rods.

Furthermore, the exhaust assembly jointly forms an exhaust valve body, the valve cover body is a regular stepped cylindrical cavity, the left end face of the large diameter is provided with four supporting bodies and four screw through holes, the right end face of the large diameter is provided with exhaust holes matched with the exhaust pipe for exhausting, the exhaust pipe is an L-shaped tubular body, one end of the exhaust pipe is provided with a through hole through which the exhaust pipe is clamped through a lift, and the effect of fixing the position of the exhaust pipe is achieved. The inner end surface of the valve cover and the valve plate form a small cavity, and the space is enough for the opening and closing stroke of the exhaust valve plate.

Preferably, the left end of the valve plate is matched with the valve plate support frame, the support frame plays a role in fixing and supporting the protective valve plate, and the left end of the valve plate support frame is in close contact with the lift pad; the left end of the lift pad is tightly matched with the lift pad supporting frame, and the valve plate supporting frame and the lift pad supporting frame tightly fix the lift pad; the lift cushion supports the left end with buffer plate right-hand member face closely cooperates, the buffer plate left end face with the retaining ring right-hand member phase-match, the retaining ring left end face have with the disk seat right-hand member face closely cooperates, the disk seat left end face with piston overcoat right-hand member face closely contacts mutually.

Preferably, the valve cover is characterized in that a combination body formed by the check ring, the exhaust pipe, the buffer sheet, the valve plate, the lift pad and the valve seat is assembled in the cavity of the valve cover, and the left end of the valve cover is assembled with the right end cover.

Furthermore, the end cover is divided into two parts, wherein one part is a right end cover, the other part is a left end cover, the right end cover is a regular stepped cylindrical cavity, and one small-diameter end of the cylindrical cavity is provided with local four threaded holes which are in close contact with the right end face of the valve cover through four locking screws; the end of the large-diameter stepped cylindrical cavity of the right end cover is provided with uniformly distributed threaded holes and is connected with the right end of the left insulating plate through locking threads, and the inner end surface of the cavity of the right end cover is in close contact with the right end surface of the piston outer sleeve.

Furthermore, the valve seat, the right end cover and the piston outer sleeve are sequentially locked by the same locking screw rod from left to right.

Preferably, the stator assembly comprises a back iron outer sleeve, a permanent magnet, a left insulating plate, a right insulating plate and a piston outer sleeve; the permanent magnets are provided with a small type, a medium type and a large type, and the permanent magnets of the three types are sequentially arranged in a small-size, medium-size, large-size, medium-size and small-size sequence as a group and are embedded in the grooves in the inner side wall of the back iron outer sleeve; the iron returning outer sleeve is a standard annular body, the left end and the right end of the iron returning outer sleeve are respectively provided with uniformly distributed threaded holes which are respectively closely matched with the left end cover and the right insulating plate, ten permanent magnet group mounting grooves are formed in the iron returning outer sleeve and respectively assembled with the permanent magnet groups.

Furthermore, the piston is sleeved with an irregular stepped cylinder, the left end of the irregular stepped cylinder is closed, threaded holes are uniformly distributed at the right end of the irregular stepped cylinder, and the irregular stepped cylinder is hollow; the piston inner sleeve extends into the piston outer sleeve, the left end of the piston outer sleeve extends into the resonant spring in a small diameter mode, the right end of the resonant spring is abutted against the stepped end face of the piston outer sleeve, and the left end of the resonant spring is in close contact with the spring locking plate; the spring locking plate is in a stepped columnar shape, and the small-diameter end extends into the interior of the left end of the resonant spring.

Optionally, the left end of the piston is a chamfered cylinder, penetrates through the middle of the spring locking plate and is provided with a circular through hole, and the right end of the piston is a rounded cuboid and is inserted into the notch of the left end of the piston rod and fixed by two screws; the right end part of the piston rod is inserted into a groove formed in the inner end face of the piston inner sleeve, and when the piston rod is under the action of electromagnetic force, the coil group drives the coil rack to force the piston to move right to be connected with the piston rod to move right so as to push the piston inner sleeve to move right.

Preferably, the resonant spring is positioned in the inner stator wall cavity and is coaxially arranged, the inner stator is designed as a cavity with a closed-up right end, and the left end of the piston outer sleeve extends into the inner part; eight square grooves are uniformly distributed in the outer wall of the inner stator, a semicircular groove is formed in the middle of each groove and is used for being matched with the semicircular groove formed in the movable sleeve, and a cylindrical cavity formed by the two semicircular grooves is used for installing the ball group;

when the coil is electrified, a magnetic field is generated inside, the coil rack is driven by the action of electromagnetic force to drive the movable sleeve to move right, and rolling displacement is generated between the movable sleeve and the inner stator by the ball group; the conical valve can move left and right on the valve core shaft, the conical valve is tightly attached to the inner hole of the piston, and when the gas pressure reaches the opening pressure of the conical valve, the conical valve is opened and exhausts gas through the notch of the conical valve.

Furthermore, the inner surface of the movable sleeve is provided with uniformly distributed concave grooves, semicircular through grooves are formed in the concave grooves, and ball groups are arranged in a cavity formed by matching with the semicircular grooves in the outer wall surface of the inner stator; the outer edge of the right end of the movable sleeve is provided with uniformly distributed U-shaped grooves, and each U-shaped groove is internally provided with a through hole for being matched with the coil rack.

Preferably, the coil rack is installed on the axial line of the compressor, the inner side wall of the coil rack is in contact with the movable sleeve but keeps a smaller distance with the movable sleeve, and the inner wall of the left end cover is matched and assembled with the spring locking plate; the left end face of the coil rack is provided with uniformly distributed threaded through holes which are matched with threaded holes on the left end face of the spring locking plate; the coil frame is characterized in that the outer side wall of the coil frame is provided with two annular grooves for reserving a partition plate with a certain width between the two grooves of the winding coil, and the partition plate is provided with two square through grooves for allowing an enameled wire to pass through so as to ensure the continuous winding of the enameled wire.

Furthermore, the outer side of the coil group is adjacent to the permanent magnet group, and a small gap is reserved; the left end face of the coil rack and the edge plate outer sleeve are fixed through locking nuts which are uniformly distributed; the left end cover of the coil rack is provided with a through hole for mounting a piston column-shaped head; the insulating outer sleeve is an Contraband-shaped annular plate, and a through hole is formed in the middle of the insulating outer sleeve.

Furthermore, left side insulating plate left end be connected with the supporting leg, right-hand member lid ladder portion right-hand member is connected with the supporting leg equally, supporting leg all connect spring, play absorbing effect.

In the multi-magnet type compressor with the novel structure, the number of parts is reduced by improving and designing the plurality of parts, and the parts of the original linear compressor are integrated and redesigned, so that the whole structure of the compressor is more compact, an air gap is reduced, and the volume of the compressor is reduced; the whole compressor system achieves a more ideal high-efficiency working state by adopting the matching of a plurality of magnets and a double coil. The resonant spring system is adopted to enable the whole compressor system to achieve a more ideal resonant working state. This many magnet type compressors of novel structure improves the design to part structures such as internal stator, magnet group, coil former, because the internal design has the ball group, has changed traditional moving means, has reduced the unnecessary system energy loss who brings because of the friction, increase of service life.

Drawings

Fig. 1 is a sectional view schematically showing the overall structure of a multiple magnet type compressor of the present invention;

FIG. 2 is an exploded view of the various components of the multiple magnet compressor of the present invention;

fig. 3 is a three-dimensional schematic view of an external overall structure of a multiple magnet type compressor of the present invention;

fig. 4 is a three-dimensional schematic view of the internal overall structure of the multiple magnet type compressor of the present invention;

fig. 5 is a left side view of the overall structure of the multi-magnet type compressor of the present invention;

fig. 6 is a right side view of the overall structure of the multi-magnet type compressor of the present invention;

fig. 7 is a left side view of the internal overall structure of the multi-magnet type compressor of the present invention;

FIG. 8 is a schematic view of an inner stator of the multi-magnet type compressor of the present invention;

fig. 9 is a schematic view of a back iron housing of the multi-magnet type compressor of the present invention;

fig. 10 is a schematic view of a piston of the multi-magnet type compressor of the present invention;

FIG. 11 is a schematic view of a right end cap of the multiple magnet type compressor of the present invention;

fig. 12 is a schematic view of a bobbin of the multi-magnet type compressor of the present invention;

in the figure, 1, a valve cover; 2. a lift pad; 3. an exhaust pipe; 4. a buffer sheet; 5. a retainer ring; 6. a valve seat; 7. a right end cap; 8. a right insulating plate; 9. a ball bearing; 10. returning the iron jacket; 11. a left end cap; 12. a left insulating plate; 13. a spring locking plate; 14. an insulating outer sleeve; 15. a bobbin; 16. a piston; 17. a piston rod; 18. a coil; 19. a permanent magnet; 20. a movable sleeve;

21. an inner stator; 22. a resonant spring; 23. a piston inner sleeve; 24. a piston outer sleeve; 25. and a valve plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art without any creative effort, should be included in the protection scope of the present invention.

It should be noted that all the directional indicators (such as outer, inner, left and right … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indicator is changed accordingly. Where "left" corresponds to the left side in fig. 1 and "right" corresponds to the right side in fig. 1.

The multiple magnet type compressor of the present invention is described in detail with reference to fig. 1 to 12, and is generally applied to various fields such as home use, industry, mining industry, metallurgical industry, electric power, national defense construction, agriculture, and the like.

The multi-magnet type compressor comprises a compressor end cover, a rotor assembly, an air suction and exhaust assembly, a stator assembly and end covers (11, 7); the stator assembly comprises a back iron outer sleeve 10, a permanent magnet 19, a left insulating plate 12, a right insulating plate 8 and a piston outer sleeve 24; the permanent magnet 19 is evenly embedded on the inner side wall of the iron returning outer sleeve 10, the left end of the iron returning outer sleeve 10 is connected with the left end cover 11 through a nut, and the right side of the iron returning outer sleeve is fixed with the right insulating plate 8 through a nut. The cover body of the valve cover 1 is a regular stepped cylindrical cavity, the left end face of the large diameter is provided with four supporting bodies and four screw rod through holes, the right end face of the cover body is provided with exhaust holes matched with the exhaust pipe 3 for exhausting, the exhaust pipe 3 is an L-shaped tubular body, one end of the exhaust pipe passes through the through hole formed in the lift cushion 2, the exhaust pipe 3 is clamped by the through hole, and the effect of fixing the position of the exhaust pipe is achieved. The inner end surface of the valve cover 1 and the valve plate 25 form a small cavity, and the space is enough for the opening and closing stroke of the exhaust valve plate 25. The left end of the valve plate 25 is matched with a valve plate support frame, the support frame plays a role of fixing, supporting and protecting the valve plate, and the left end of the valve plate support frame is tightly contacted with the lift pad 2; the left end of the lift pad 2 is tightly matched with a lift pad support frame, and the lift pad 2 is tightly fixed by the valve plate support frame and the lift pad support frame.

The left end of the lift cushion support is tightly matched with the right end face of the buffer sheet 4, the left end face of the buffer sheet 4 is matched with the right end of the check ring 5, the check ring 5 is designed to be a circular ring plate, threaded holes are uniformly formed in the upper face of the check ring 5, the left end face of the check ring 5 is tightly matched with the right end face of the valve seat 6, the valve seat 6 is designed to be a circular ring plate, and three semicircular arc-shaped openings are uniformly formed in the upper face of the check ring for fixing; the left end surface of the valve seat 6 is tightly contacted with the right end surface of the piston outer sleeve 24.

The assembly formed by the check ring 5, the exhaust pipe 3, the buffer sheet 4, the valve sheet 25, the lift pad 2 and the valve seat 6 is assembled in the cavity of the valve cover 1, and the left end of the valve cover 1 is assembled with the right end cover 11.

The end cover is divided into two parts, wherein one part is a right end cover 7, the other part is a left end cover 11, the right end cover 7 is a regular stepped cylindrical cavity, and one small-diameter end of the cylindrical cavity is provided with four uniformly distributed threaded holes which are tightly contacted with the right end face of the valve cover 1 through four locking screws.

The mover assembly of the present invention includes a coil bobbin 15, a coil assembly 18, a movable sleeve 20, a piston 16, a piston rod 17, a piston inner sleeve 23, an inner stator 21, a resonant spring 22, a spring locking plate 13, and a moving ball assembly 9 positioned between the inner stator 21 and the movable sleeve 20, wherein the piston 16 is connected with the piston inner sleeve 23 through the piston rod 17.

The coil assembly 18 is two coils wound in opposite directions and fixed in an annular magnetic field formed by permanent magnet 19 magnets through the coil frame 15, when current is applied to the compressor, the device enters a working state, current in opposite directions flows through the two coils 18 and interacts with the permanent magnet 19 to generate electromagnetic force, the piston 16 is pushed to move right to drive the piston rod 17 to move right to compress the resonant spring 22, so that the volume of a cavity between the piston inner sleeve 23 and the piston outer sleeve 24 is further changed, when the pressure of gas in the cavity is high enough, the valve plate 25 is forced to open, gas with high pressure is discharged, low-temperature and low-pressure gas is compressed into high-temperature and high-pressure gas, and the gas has pressure energy.

The piston inner sleeve 23 extends into the left end of the piston outer sleeve 24, the left end of the piston outer sleeve 24 extends into the resonant spring 22 in a small diameter mode, the right end of the resonant spring 22 is close to the stepped end face of the piston outer sleeve 24, and the left end of the resonant spring is tightly contacted with the spring locking 13 plate; the spring locking plate 13 is in a stepped column shape, and the small-diameter end of the spring locking plate extends into the left end of the resonant spring 22; the left end of the piston 16 is a chamfer cylinder and penetrates through the middle of the spring locking plate 13 to form a circular through hole, and the right end of the piston is a round cuboid and is inserted into a notch at the left end of the piston rod 17 and fixed through two screws.

The right end of the piston rod 17 is inserted into a groove formed in the inner end surface of the piston inner sleeve 23, and when the piston rod is acted by electromagnetic force, the coil 18 group drives the coil rack 15 to force the piston 16 to move right to connect with the piston rod 17 to move right, so that the piston inner sleeve 23 is pushed to move right.

The resonant spring 22 and the inner stator 21 are arranged coaxially in the cavity, the inner side of the resonant spring is fixed in position through an M4 screw and plays a role in movement guiding, the inner stator 21 is designed into a stepped cylindrical cavity with a closed right end, and the left end of the piston outer sleeve 24 extends into the right end of the piston outer sleeve; eight square grooves are uniformly distributed in the outer wall of the inner stator 21, a semicircular arc-shaped groove is formed in the middle of each groove and is used for being matched with the semicircular arc-shaped groove formed in the movable sleeve 20, and a cylindrical cavity body formed by the two semicircular arc-shaped grooves is used for installing the ball group 9; six ball groups are a small group, are arranged in the cylindrical cavity, are totally provided with eight groups of ball groups and are respectively arranged in eight cylindrical arc-shaped cavities.

When the coil 18 is electrified, a magnetic field is generated inside, the coil rack 15 is acted by electromagnetic force to drive the movable sleeve 20 to move right, and the rolling displacement is generated between the movable sleeve 20 and the inner stator 21 by the ball group 9; the left end face of the coil rack 15 is provided with uniformly distributed threaded through holes which are matched with threaded holes on the left end face of the spring locking plate 13 for installation; two annular grooves are formed in the outer side wall of the coil frame 15 and used for reserving a partition plate with a certain width between the two grooves of the winding coil, and two square through grooves are formed in the partition plate and used for enabling the enameled wire to penetrate through the partition plate so as to guarantee continuous winding of the enameled wire.

The whole working process of the multi-magnet type compressor comprises the following steps: under the condition of alternating current on the left coil and the right coil of the compressor, the left coil and the right coil generate an alternating magnetic field, in this condition, the direction of the magnetic field force borne by the permanent magnet block 19 arranged on the iron return outer sleeve 10 is also continuously changed, and the permanent magnet 19 drives the piston 16 to start to do reciprocating linear movement under the driving of the magnetic field force with the changed direction, so that the volume of the cavity is changed, the piston is driven to compress gas to do work, the piston 16 moves to compress low-temperature and low-pressure gas into high-temperature and high-pressure gas, and the fluid has pressure energy.

According to the multi-magnet type compressor with the novel structure, the number of parts is reduced by improving and designing the plurality of parts, and the parts of the original linear compressor are integrated and redesigned, so that the whole structure of the compressor is more compact, an air gap is reduced, and the volume of the compressor is reduced; the whole compressor system achieves a more ideal high-efficiency working state by adopting the matching of a plurality of magnets and a double coil. The resonance spring system is adopted to enable the whole compressor system to achieve a more ideal resonance working state. The multi-magnet type compressor has the advantages that the structures of a plurality of parts such as the inner stator, the magnet group, the coil rack and the like are improved, the traditional moving mode is changed due to the fact that the ball group is designed in the multi-magnet type compressor, unnecessary system energy loss caused by friction is reduced, and the effects of compact structure, stable connection, high efficiency in operation, convenience in installation and inspection, reduction in production cost and service life prolonging of the compressor are achieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. The utility model provides a many magnet type compressor, includes left end lid (11), right-hand member lid (7), stator module, active cell subassembly and inhales exhaust subassembly, its characterized in that: the stator assembly comprises a back iron outer sleeve (10), a permanent magnet (19), a left insulating plate (12), a right insulating plate (8) and a piston outer sleeve (24); the permanent magnets (19) are uniformly embedded on the side wall inside the iron returning outer sleeve (10), the permanent magnets (19) are respectively in a small type, a medium type and a large type, the permanent magnets (19) in the three types are sequentially in a small-to-medium-to-small sequence to form a group, the iron returning outer sleeve (10) is a standard annular body, the left end and the right end of the iron returning outer sleeve are respectively provided with uniformly distributed threaded holes which are respectively and tightly matched with the left end cover (11) and the right insulating plate (8), ten permanent magnet group mounting grooves are formed in the inner part of the iron returning outer sleeve, and the permanent magnets (19) groups are respectively assembled; the right side of the iron return outer sleeve (10) is fixed with the right insulating plate (8) through a nut; the rotor assembly comprises a coil rack (15), a coil assembly (18), a movable sleeve (20), a piston (16), a piston rod (17), a piston inner sleeve (23), an inner stator (21), a resonant spring (22), a spring locking plate (13) and a moving ball assembly (9) positioned between the inner stator (21) and the movable sleeve (20), and the piston (16) is connected with the piston inner sleeve (23) through the piston rod (17); the valve cover (1), the right end cover (7) and the piston outer sleeve (24) are sequentially locked by the same locking screw rod from left to right; the components consisting of the lift pad (2), the lift pad support frame, the exhaust pipe (3), the valve plate (25), the valve plate support frame, the buffer sheet (4) and the check ring (5) are all assembled in an air valve cavity consisting of the valve cover (1) and the valve seat (6); inhale exhaust subassembly includes valve gap (1), retaining ring (5), blast pipe (3), buffer plate (4), valve block (25), lift pad (2) and disk seat (6), by valve gap (1), retaining ring (5), buffer plate (4), valve block (25), lift pad (2) and disk seat (6) formation's discharge valve, under the effect that receives inside high-pressure gas power, make inside valve block (25) open, high-pressure gas then passes through inside the blast pipe discharge compressor, accomplishes the exhaust process.

2. The multi-magnet type compressor according to claim 1, wherein the retainer ring (5), the buffer sheet (4), the valve sheet (25), the lift pad (2), and the valve seat (6) are all arranged at the center line of the valve cover (1) for installation; the left end of the valve cover (1) is tightly connected with the right end of the right end cover (7) through four locking screw rods; the valve cover (1) is characterized in that a cover body is a regular stepped cylindrical cavity, four supporting bodies and four screw rod through holes are uniformly arranged on the right end face of the large-diameter left end, exhaust holes matched with the exhaust pipe (3) for exhaust are formed in the right end face of the cover body, the exhaust pipe (3) is an L-shaped tubular body, one end of the exhaust pipe passes through the through hole formed in the lift cushion (2), and the exhaust pipe is clamped by the through hole, so that the effect of fixing the position of the exhaust pipe is achieved.

3. The multi-magnet type compressor according to claim 1, wherein the inner end surface of the valve cover (1) and the valve plate (25) form a small cavity which is enough for the opening and closing stroke of the valve plate (25), the left end of the valve plate (25) is matched with a valve plate support frame which plays a role of fixing, supporting and protecting the valve plate (25), the left end of the valve plate support frame is tightly matched with the lift pad (2), the left end of the lift pad (2) is tightly matched with a lift pad support frame, and the valve plate support frame and the lift pad support frame fix the lift pad (2); the lift pad supports the left end with buffer chip (4) right-hand member face closely cooperates, buffer chip (4) left end face with retaining ring (5) right-hand member phase-match, retaining ring (5) left end face with disk seat (6) right-hand member face closely cooperates, disk seat (6) left end face with piston overcoat (24) right-hand member face in close contact with.

4. The multi-magnet type compressor according to claim 1, wherein the end cap is divided into two parts, the right end cap (7) is a regular stepped cylindrical cavity, wherein four screw holes are formed at one end of the small diameter of the cylindrical cavity and are in close contact with the right end face of the valve cap (1) through four locking screws, evenly distributed screw holes are formed at one end of the stepped cylindrical cavity of the large diameter of the right end cap (7) and are connected with the right end of the left insulating plate (12) through locking screws, and the inner end face of the cavity of the right end cap (7) is in close contact with the right end face of the piston outer sleeve (24).

5. The multi-magnet type compressor according to claim 1, wherein the piston outer sleeve (24) has a closed left end and a hollow right end with screw holes, the piston inner sleeve (23) extends into the hollow interior of the piston outer sleeve, the left end of the piston outer sleeve (24) has a small diameter extending into the resonant spring (22), the right end of the resonant spring (22) is against the stepped end surface of the piston outer sleeve (24), and the left end of the resonant spring is in close contact with the spring locking plate (13); the spring locking plate (13) is in a stepped column shape, and the small-diameter end of the spring locking plate extends into the left end inside the resonant spring (22).

6. The multi-magnet type compressor according to claim 1, wherein the left end of the piston (16) is a chamfered cylinder and passes through a spring locking plate (13) with a circular through hole in the middle, the right end of the piston (16) is a rounded rectangular parallelepiped and is inserted into a gap at the left end of the piston rod (17) and fixed by two screws, the right end of the piston rod (17) is inserted into a groove arranged on the inner end surface of the piston inner sleeve (23), and when the piston is subjected to the action of electromagnetic force, the coil assembly (18) drives the coil rack (15) to force the piston (16) to move right to connect the piston rod (17) to move right so as to push the piston inner sleeve (23) to move right; the resonance spring (22) is positioned in the cavity of the inner stator (21) and is coaxially arranged, the inner stator (21) is designed into a cavity with a closed-up right end, and the left end of the piston outer sleeve (24) extends into the inner part; eight uniformly distributed square grooves are formed in the outer wall of the inner stator (21), a semicircular groove is formed in the middle of each groove, uniformly distributed concave grooves are formed in the inner surface of the movable sleeve (20), a semicircular through groove is formed in each concave groove, and a ball group (9) is installed in a cavity formed by matching with the semicircular grooves in the outer wall surface of the inner stator (21); when the coil is electrified, a magnetic field is generated inside, the coil rack (15) is driven by the action of electromagnetic force to move the movable sleeve (20) to the right, and rolling displacement is generated between the movable sleeve (20) and the inner stator (21) by the ball group (9).

7. A multiple magnet type compressor as claimed in claim 1, wherein the outer edge of the right end of the movable sleeve (20) is formed with uniformly distributed U-shaped grooves, each of which is formed with a through hole for fitting with the coil frame (15).

8. The multi-magnet type compressor according to claim 1, wherein the coil former (15) is installed on the central axis of the compressor, the inner side wall is in contact with the movable sleeve (20) but keeps a small distance, the inner wall of the left end cover is matched and assembled with the spring locking plate (13), and the left end face of the coil former (15) is provided with uniformly distributed threaded through holes which are matched and installed with threaded holes on the left end face of the spring locking plate (13); the outer side wall of the coil rack (15) is provided with two annular grooves, a partition plate with a certain width is reserved between the two grooves for winding the coil (18), and the partition plate is provided with two square through grooves for allowing an enameled wire to pass through so as to ensure the continuous winding of the enameled wire; the outer side of the coil (18) group is adjacent to the permanent magnet (19) group, and a small gap is reserved.

9. A multiple magnet type compressor in accordance with claim 1, wherein the left end face of the coil bobbin (15) is fixed to the insulating sheath (14) by means of locking nuts uniformly distributed; the left end cover of the coil rack (15) is provided with a through hole for mounting a piston column-shaped head; the insulating outer sleeve (14) is an Contraband-shaped annular plate, and a through hole is formed in the middle of the insulating outer sleeve; the left end of the left insulating plate (12) is connected with the supporting leg, the right end of the stepped part of the right end cover is also connected with the supporting leg, and the legs of the supporting leg are all connected with the spring to play a role in shock absorption.

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