Permanent magnet vibrator piston assembly, asynchronous push-pull electromagnetic vibrator compressor and asynchronous double push-pull electromagnetic vibrator compression system

Abstract

The present invention discloses a permanent magnet vibrator piston assembly, which is suitable for moving in a changing magnetic field. The permanent magnet vibrator piston assembly includes a piston body and a permanent magnet assembly. The permanent magnet assembly includes a first permanent magnet and a second permanent magnet. The first permanent magnet is placed in the central area of ​​the piston body, and the second permanent magnet is placed on the piston body around the periphery of the first permanent magnet. The first permanent magnet and the second permanent magnet are located on the same side of the axial direction of the piston body with opposite polarities. The piston body is driven to perform linear reciprocating motion by changing the magnetic force of the first permanent magnet and the second permanent magnet due to the changing magnetic field. The permanent magnet vibrator piston assembly of the present invention has a simple structure, light weight, low cost and is suitable for moving in a changing magnetic field. The present invention also provides an asynchronous push-pull electromagnetic vibrator compressor and an asynchronous double push-pull electromagnetic vibrator compression system.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a permanent magnet vibrator piston assembly, an asynchronous push-pull electromagnetic vibrator compressor and an asynchronous double push-pull electromagnetic vibrator compression system. Background Art

[0002] The compressor is a driven fluid machine that lifts low-pressure gas to high-pressure gas, and is the heart of the refrigeration system. The compressor inhales low-temperature, low-pressure refrigerant gas from the suction pipe, compresses it by driving the piston through the motor, and then discharges high-temperature, high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle, thereby realizing the refrigeration cycle of compression → condensation (heat release) → expansion → evaporation (heat absorption). The compressors in the existing technology are divided into piston compressors, screw compressors, centrifugal compressors and linear compressors.

[0003] However, the compressors in the prior art are limited by the technological level and compression method, and cannot compress the gas efficiently. For example: ① Piston compressors, when the crankshaft of the piston compressor rotates, the piston reciprocates through the transmission of the connecting rod. The crankshaft of the piston compressor rotates one circle, and the piston reciprocates once. The process of intake, compression, and exhaust is realized in the cylinder successively, that is, a working cycle is completed. However, the piston compressor only does useful work in half of the stroke, and its intake and exhaust are discontinuous and the machine vibration is obvious. The friction on the inner wall of the cylinder during the reciprocating motion of the piston is large, which causes large energy loss and is easy to damage the piston; ② Screw compressors, through the meshing of the male rotor composed of 5 convex teeth and the female rotor composed of 6 concave teeth to form a tooth-shaped space to inhale the refrigerant, and the refrigerant is compressed to a predetermined pressure by reducing the tooth-shaped space. The production precision of the male rotor and the female rotor is high, and the production cost is high. Since the meshing of the male rotor and the female rotor is a contact loss, the male rotor and the female rotor need to be replaced regularly, which undoubtedly increases the maintenance and maintenance costs.

[0004] Therefore, there is an urgent need for a compressor with simple structure, light piston weight, high efficiency and low vibration. Summary of the invention

[0005] The object of the present invention is to provide a permanent magnet vibrator piston assembly which has a simple structure, light weight, low cost and is suitable for moving in a changing magnetic field.

[0006] Another object of the present invention is to provide an asynchronous push-pull electromagnetic vibrator compressor having the above-mentioned permanent magnet vibrator piston assembly, which has a simple structure, low cost, light piston weight, long life, high efficiency and can perform work in the full stroke.

[0007] Another object of the present invention is to provide an asynchronous dual push-pull electromagnetic vibrator compression system with a simple structure, low cost, light piston weight, long life, high efficiency, ability to work throughout the stroke and low vibration.

[0008] To achieve the above-mentioned purpose, the present invention provides a permanent magnet vibrator piston assembly for use in a compressor, suitable for moving in a changing magnetic field, the permanent magnet vibrator piston assembly comprising a piston body and a permanent magnet assembly, the permanent magnet assembly comprising a first permanent magnet and a second permanent magnet, the first permanent magnet being arranged in the central area of ​​the piston body, the second permanent magnet being arranged on the piston body around the periphery of the first permanent magnet, the first permanent magnet and the second permanent magnet being located on the same side of the axial direction of the piston body with opposite polarities, and the piston body is driven to perform linear reciprocating motion by the change in magnetic force of the first permanent magnet and the second permanent magnet caused by the changing magnetic field.

[0009] Compared with the prior art, the first permanent magnet of the permanent magnet vibrator piston assembly of the present invention is placed in the central area of ​​the piston body, and the second permanent magnet is placed on the piston body around the periphery of the first permanent magnet. The first permanent magnet and the second permanent magnet are located on the same side of the axial direction of the piston body with opposite polarities, so that the central area and the peripheral area on the same side of the permanent magnet vibrator piston assembly have opposite polarities, and the structure is simple; the permanent magnet assembly is composed of the first permanent magnet and the second permanent magnet. Due to the low density of the permanent magnet, the overall weight of the permanent magnet vibrator piston assembly is lighter, and the electromagnetic energy loss of the permanent magnet vibrator piston assembly due to its large weight is reduced. The permanent magnet vibrator piston assembly made by the permanent magnet assembly has low cost and is easy to promote and apply; the permanent magnet vibrator piston assembly is placed in a specific changing magnetic field, and the changing magnetic field produces a magnetic effect on the permanent magnet vibrator piston assembly, and the magnetic force drives the permanent magnet vibrator piston assembly to move in the changing magnetic field.

[0010] Preferably, the first permanent magnet has a circular structure, the second permanent magnet has a ring-shaped structure, the first permanent magnet is placed in the ring-shaped structure of the second permanent magnet, the first permanent magnet and the second permanent magnet together form a concentric circle structure, the diameter of the first permanent magnet is smaller than the inner ring diameter of the second permanent magnet, and the gap between the first permanent magnet and the second permanent magnet forms a non-magnetic zone.

[0011] Preferably, the piston body includes two piston surfaces arranged opposite to each other, the diameter of the piston surface is larger than the outer ring diameter of the second permanent magnet, and a hollow structure is formed between the two piston surfaces to form a receiving cavity. The first permanent magnet is positioned in the central area of ​​the receiving cavity, and the second permanent magnet surrounds the periphery of the first permanent magnet and is positioned in the receiving cavity.

[0012] Preferably, the piston protrudes toward the non-magnetic area to form a convex rib that cooperates with the non-magnetic area, the second permanent magnet is positioned on the outer surface of the convex rib, the first permanent magnet is positioned on the inner surface of the convex rib, and the convex rib positions the first permanent magnet and the second permanent magnet concentrically in the accommodating cavity.

[0013] Preferably, the convex rib includes a first convex rib and a second convex rib, and a gap is formed between the first convex rib and the second convex rib.

[0014] Preferably, the two piston surfaces are respectively adhered to the first permanent magnet and the second permanent magnet on both sides along the axial direction of the piston body, the first permanent magnet and the second permanent magnet are wrapped between the two piston plates, and the side surfaces of the two piston surfaces and the second permanent magnet along the radial direction of the piston body present a concave-convex structure, and the concave-convex structure forms a channel.

[0015] Preferably, the permanent magnet vibrator piston assembly further comprises a piston ring matched with the channel, the piston ring is sleeved in the channel, and the piston ring sleeved in the channel protrudes from the side surface of the piston body along the radial direction of the piston body.

[0016] Preferably, the piston ring comprises a first piston ring and a second piston ring, and the first piston ring and the second piston ring are respectively sleeved in the channel.

[0017] Preferably, the first piston ring is a compression ring, and the second piston ring is an oil ring.

[0018] Preferably, the piston surface is configured as an aluminum-based disc.

[0019] Correspondingly, the present invention also provides an asynchronous push-pull electromagnetic vibrator compressor, which includes a shell, a permanent magnet vibrator piston assembly as described above, a cylinder body and an electromagnetic assembly that periodically generates a changing magnetic field, the shell includes an air inlet and an exhaust port, the shell has a hollow structure to form an airtight cavity, external gas flows into the airtight cavity unidirectionally through the air inlet, and the gas in the airtight cavity flows out of the airtight cavity unidirectionally through the exhaust port; the cylinder body is placed in the airtight cavity, the cylinder body has a hollow structure to form a piston cavity, the permanent magnet vibrator piston assembly is placed in the piston cavity, the piston cavity is sealed and divided into two independent first piston cavity and second piston cavity by the permanent magnet vibrator piston assembly, the first piston cavity and the The second piston chamber is communicated with the airtight cavity respectively; the electromagnetic assembly is placed in the cylinder body, and the changing magnetic field generated by the electromagnetic assembly causes the magnetic force change of the first permanent magnet and the second permanent magnet, thereby driving the permanent magnet vibrator piston assembly to perform periodic linear reciprocating motion in the piston chamber. The linear reciprocating motion of the permanent magnet vibrator piston assembly in the piston chamber causes the first piston chamber and the second piston chamber to periodically alternate between compression and expansion states, and external gas flows into the first piston chamber and the second piston chamber in a one-way manner at the air inlet in a one-way manner, and the gas in the first piston chamber and the second piston chamber flows out of the first piston chamber and the second piston chamber in a one-way manner at the exhaust port in a one-way manner.

[0020] Compared with the prior art, the shell of the asynchronous push-pull electromagnetic vibrator compressor of the present invention is a hollow structure to form an airtight cavity, external gas flows into the airtight cavity unidirectionally through the air inlet, and the gas in the airtight cavity flows out of the airtight cavity unidirectionally through the exhaust port, so that the shell constitutes a one-way inlet and outlet gas channel, the cylinder body is a hollow structure to form a piston cavity, the permanent magnet vibrator piston assembly is placed in the piston cavity and the piston cavity is sealed and divided into two independent first piston cavities and second piston cavities, the first piston cavity and the second piston cavity are respectively connected to the airtight cavity, an electromagnetic assembly is arranged in the cylinder body, the changing magnetic field generated by the electromagnetic assembly causes the magnetic force change of the first permanent magnet and the second permanent magnet to drive the permanent magnet vibrator piston assembly to perform periodic linear reciprocating motion in the piston cavity, the structure is simple, and the periodically changing magnetic field is effectively used to drive the permanent magnet vibrator piston assembly to perform reciprocating motion, the driving principle is simple, and the system is simple. The cost is low; since the permanent magnet vibrator piston assembly is composed of a permanent magnet assembly, the density of the permanent magnet assembly is small and the weight is light, which effectively reduces the weight of the piston, and avoids wasting too much electromagnetic energy due to excessive weight of the permanent magnet vibrator piston assembly when performing reciprocating motion; and since the permanent magnet vibrator piston assembly is directly driven by the periodically changing magnetic field, the permanent magnet vibrator piston assembly is avoided from being directly driven by external objects, effectively reducing physical loss and extending the life of the permanent magnet vibrator piston assembly; the first piston chamber and the second piston chamber are periodically alternated between compression and expansion under the periodically changing magnetic field, so that the gas in the first piston chamber and the second piston chamber is periodically alternated and flows out of the first piston chamber and the second piston chamber in one direction at the exhaust port; since the first piston chamber and the second piston chamber are periodically alternated between compression and expansion, the asynchronous push-pull electromagnetic vibrator compressor performs work in the entire stroke, which greatly improves the work efficiency.

[0021] Preferably, the electromagnetic assembly includes two disc-type electromagnets, which are arranged opposite to each other on both sides of the permanent magnet vibrator piston assembly along the axial direction of the piston body, and the two disc-type electromagnets form two side walls of the cylinder body along the axial direction of the piston body.

[0022] Preferably, the disc-type electromagnet protrudes toward the permanent magnet vibrator piston assembly to form a first electromagnet and a second electromagnet, the first electromagnet corresponds to the first permanent magnet, the second electromagnet corresponds to the second permanent magnet, the first electromagnet and the second electromagnet are located on the same side of the axial direction of the piston body and have opposite polarities, the two first electromagnets have the same polarity on the side facing the permanent magnet vibrator piston assembly, and the two second electromagnets have the same polarity on the side facing the permanent magnet vibrator piston assembly.

[0023] Preferably, the first electromagnet has a circular structure, the second electromagnet has a ring-shaped structure, the first electromagnet is placed inside the ring-shaped structure of the second electromagnet, the first electromagnet and the second electromagnet together form a concentric circle structure, the diameter of the first electromagnet is smaller than the inner ring diameter of the second electromagnet, an electromagnet coil is wound between the first electromagnet and the second electromagnet, and the electromagnet coil, when energized, forms a magnetic field with opposite polarities with the first electromagnet and the second electromagnet.

[0024] Preferably, the disc-type electromagnet is provided with an air hole penetrating along the axial direction of the piston body, and the piston cavity is connected to the airtight cavity through the air hole.

[0025] Preferably, the shell and the cylinder body form an air intake passage on one side of the air intake port, and external gas flows in from the air intake port and flows into the airtight cavity in a unidirectional manner through the air intake passage.

[0026] Preferably, a first one-way valve is provided between the air intake passage and the cylinder body, and the first one-way valve restricts the gas in the airtight cavity from flowing from the airtight cavity into the air intake passage.

[0027] Preferably, the shell and the cylinder body form an exhaust channel on one side of the exhaust port, and the gas in the airtight cavity flows out of the exhaust channel unidirectionally through the exhaust channel and flows out from the exhaust port.

[0028] Preferably, a second one-way valve is provided between the exhaust passage and the cylinder body, and the second one-way valve restricts external gas from flowing from the exhaust passage into the airtight cavity.

[0029] Correspondingly, the present invention also provides an asynchronous dual push-pull electromagnetic vibrator compression system, which includes two asynchronous push-pull electromagnetic vibrator compressors as described above, the air inlets of the two asynchronous push-pull electromagnetic vibrator compressors are connected to a common air inlet, the exhaust ports of the two asynchronous push-pull electromagnetic vibrator compressors are connected to a common exhaust port, and the permanent magnet vibrator piston assemblies corresponding to the two asynchronous push-pull electromagnetic vibrator compressors perform relative and opposite linear motions alternately.

[0030] Compared with the prior art, the asynchronous dual push-pull electromagnetic vibrator compression system of the present invention comprises two asynchronous push-pull electromagnetic vibrator compressors, the air inlets of the two asynchronous push-pull electromagnetic vibrator compressors are connected to a common air inlet, the exhaust ports of the two asynchronous push-pull electromagnetic vibrator compressors are connected to a common exhaust port, and the permanent magnet vibrator piston assemblies corresponding to the two asynchronous push-pull electromagnetic vibrator compressors perform relative and opposite linear motions alternately, which effectively offsets the vibrations of the two asynchronous push-pull electromagnetic vibrator compressors and avoids damage to the asynchronous dual push-pull electromagnetic vibrator compression system due to long-term vibration; The shell of the pull-type electromagnetic vibrator compressor is a hollow structure to form an airtight cavity. External gas flows into the airtight cavity in one direction through the air inlet, and the gas in the airtight cavity flows out of the airtight cavity in one direction through the exhaust port, so that the shell constitutes a one-way gas passage. The cylinder body is a hollow structure to form a piston cavity. The permanent magnet vibrator piston assembly is placed in the piston cavity and the piston cavity is sealed and divided into two independent first piston cavities and a second piston cavity. The first piston cavity and the second piston cavity are respectively connected to the airtight cavity. An electromagnetic assembly is arranged in the cylinder body. The changing magnetic field generated by the electromagnetic assembly exerts pressure on the first permanent magnet. The magnetic force changes generated by the body and the second permanent magnet drive the permanent magnet vibrator piston assembly to perform periodic linear reciprocating motion in the piston cavity. The structure is simple, and the periodically changing magnetic field is effectively used to drive the permanent magnet vibrator piston assembly to perform reciprocating motion. The driving principle is simple and the manufacturing cost is low. Since the permanent magnet vibrator piston assembly is composed of permanent magnet components, the density of the permanent magnet components is small and the weight is light, the weight of the piston is effectively reduced, and the permanent magnet vibrator piston assembly is prevented from wasting too much electromagnetic energy due to excessive weight when performing reciprocating motion. In addition, since the permanent magnet vibrator piston assembly is directly driven by the periodically changing magnetic field , avoiding the permanent magnet vibrator piston assembly from being directly pushed by external objects, effectively reducing physical losses and extending the life of the permanent magnet vibrator piston assembly; the first piston chamber and the second piston chamber periodically alternate between compression and expansion under a periodically changing magnetic field, so that the gas in the first piston chamber and the second piston chamber periodically alternates and flows out of the first piston chamber and the second piston chamber in one direction at the exhaust port; since the first piston chamber and the second piston chamber periodically alternate between compression and expansion, the asynchronous push-pull electromagnetic vibrator compressor performs work throughout the entire stroke, greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the asynchronous push-pull electromagnetic vibrator compressor of the present invention.

[0032] Figure 2 It is a structural schematic diagram of the permanent magnet vibrator piston assembly of the present invention.

[0033] Figure 3 It is a structural schematic diagram of the permanent magnet assembly of the present invention.

[0034] Figure 4It is a structural schematic diagram of the asynchronous push-pull electromagnetic vibrator compressor of the present invention completing a complete cycle.

[0035] Figure 5 It is a structural schematic diagram of the asynchronous dual push-pull electromagnetic vibrator compression system of the present invention.

[0036] Figure 6 It is a structural schematic diagram of the asynchronous dual push-pull electromagnetic vibrator compression system of the present invention completing a complete cycle. DETAILED DESCRIPTION

[0037] Embodiments of the present invention will now be described with reference to the accompanying drawings, wherein like reference numerals represent like elements throughout the several views.

[0038] See also Figure 1As shown, the asynchronous push-pull electromagnetic vibrator compressor 1000 of this embodiment includes a housing 200, a permanent magnet vibrator piston assembly 100, a cylinder body 300, and an electromagnetic assembly 400 that periodically generates a changing magnetic field. Among them, the housing 200 includes an air inlet 210 and an exhaust port 220. The housing 200 is a hollow structure to form an airtight cavity 230. External gas flows into the airtight cavity 230 unidirectionally through the air inlet 210, and the gas in the airtight cavity 230 flows out of the airtight cavity 230 unidirectionally through the exhaust port 220; the cylinder body 300 is placed in the airtight cavity 230, and the cylinder body 300 is a hollow structure to form a piston cavity 310. The permanent magnet vibrator piston assembly 100 is placed in the piston cavity 310. The piston cavity 310 is sealed and divided into two independent first piston cavities 311 and second piston cavities 312 by the permanent magnet vibrator piston assembly 100. The first piston cavity 311 and the second piston cavity 312 are respectively connected to the airtight cavity 230. 230 is connected; the electromagnetic assembly 400 is placed in the cylinder body 300, and the changing magnetic field generated by the electromagnetic assembly 400 drives the permanent magnet vibrator piston assembly 100 to perform periodic linear reciprocating motion in the piston chamber 310. The linear reciprocating motion of the permanent magnet vibrator piston assembly 100 in the piston chamber 310 causes the first piston chamber 311 and the second piston chamber 312 to periodically alternate between compression and expansion states, and external gas flows into the first piston chamber 311 and the second piston chamber 312 in a one-way manner at the air inlet 210 in a one-way manner that is periodic and alternating, and the gas in the first piston chamber 311 and the second piston chamber 312 flows out of the first piston chamber 311 and the second piston chamber 312 in a one-way manner that is periodic and alternating at the exhaust port 220. The electromagnetic assembly 400 pushes and pulls the permanent magnet vibrator piston assembly 100 in the piston chamber 310 to do work. By periodically changing the magnetic field direction of the electromagnetic assembly 400, the permanent magnet vibrator piston assembly 100 makes a linear reciprocating motion in the piston chamber 310. The piston chamber 310 can periodically inhale gas for compression and expansion. With the one-way inflow and outflow of the airtight cavity 230, the asynchronous push-pull electromagnetic vibrator compressor 1000 can achieve full-cycle suction and compression, greatly improving the work efficiency. The permanent magnet vibrator piston assembly 100 of this embodiment is first described in detail below.

[0039] See also Figure 1 and Figure 2As shown, the permanent magnet vibrator piston assembly 100 of this embodiment is suitable for moving in a changing magnetic field. The permanent magnet vibrator piston assembly 100 includes a piston body 110 and a permanent magnet assembly 120. Among them, the permanent magnet assembly 120 includes a first permanent magnet 121 and a second permanent magnet 122. The first permanent magnet 121 is placed in the central area of ​​the piston body 110, and the second permanent magnet 122 is placed on the piston body 110 around the periphery of the first permanent magnet 121, so that the first permanent magnet 121 and the second permanent magnet 122 form a ring-shaped fit to be located in the same plane. The first permanent magnet 121 and the second permanent magnet 122 are located on the same side of the axial direction of the piston body 110 with opposite polarities. The changing magnetic field changes the magnetic force of the first permanent magnet 121 and the second permanent magnet 122, thereby driving the piston body 110 to perform linear reciprocating motion. Specifically, the first permanent magnet 121 is as follows Figure 3 (a) shows a circular structure, the second permanent magnet 122 is as shown in Figure 3 (b) shows a circular ring structure, in which the first permanent magnet 121 is placed in the circular ring structure of the second permanent magnet 122, and the first permanent magnet 121 and the second permanent magnet 122 together form a circular ring structure as shown in FIG. Figure 3 (c) shows a concentric circle structure, the diameter of the first permanent magnet 121 is smaller than the inner ring diameter of the second permanent magnet 122, and the gap between the first permanent magnet 121 and the second permanent magnet 122 forms a non-magnetic zone 123, so as to ensure that the magnetism between the first permanent magnet 121 and the second permanent magnet 122 is separated by the non-magnetic zone 123. It is worth noting that the first permanent magnet 121 of this embodiment is a circular structure, and the second permanent magnet 122 is a circular ring structure, so that the permanent magnet vibrator piston assembly 100 of this embodiment is a cylindrical structure, so that the permanent magnet vibrator piston assembly 100 of this embodiment is convenient for applying the permanent magnet vibrator piston assembly 100 of this embodiment to conventional circular cylinders currently on the market. Of course, the first permanent magnet 121 and the second permanent magnet 122 can also be a rectangular combination of a concentric structure. On the premise of ensuring that the first permanent magnet 121 and the second permanent magnet 122 are located on the same side of the axial direction of the piston body 110 and have opposite polarities, the specific shapes of the first permanent magnet 121 and the second permanent magnet 122 are selected according to specific needs.

[0040] See also Figure 2As shown, the piston body 110 includes two piston surfaces 111 that are oppositely arranged, and the diameter of the piston surface 111 is larger than the outer ring diameter of the second permanent magnet 122, so that the piston surface 111 can completely cover the corresponding surface of the second permanent magnet. A hollow structure is formed between the two piston surfaces 111 to form a receiving cavity, the first permanent magnet 121 is positioned in the central area of ​​the receiving cavity, and the second permanent magnet 122 surrounds the periphery of the first permanent magnet 121 and is positioned in the receiving cavity. The two piston surfaces 111 cover the first permanent magnet 121 and the second permanent magnet 122, effectively protecting the first permanent magnet 121 and the second permanent magnet 122 from being directly exposed. The piston surface 111 is set as an aluminum-based disc. Since the aluminum-based disc has strong magnetic permeability, the magnetic lines of force can penetrate the aluminum-based disc to fully contact the first permanent magnet 121 and the second permanent magnet 122, ensuring that the first permanent magnet 121 and the second permanent magnet 122 can contact the magnetic lines of force within the maximum range. In addition, the weight of the aluminum-based disc is extremely light, which effectively reduces the weight of the piston body 110 and avoids the permanent magnet vibrator piston assembly 100 from wasting too much electromagnetic energy due to excessive weight when performing reciprocating motion. In actual production, the aluminum-based disc is made as light as possible to minimize the weight of the permanent magnet vibrator piston assembly 100. Of course, the piston surface 111 can also be other materials with strong magnetic permeability and light weight, which are not limited here.

[0041] Preferably, the piston surface 111 protrudes toward the non-magnetic area 123 to form a convex rib 1111 that matches the non-magnetic area 123, the second permanent magnet 122 is positioned on the outer surface of the convex rib 1111, the first permanent magnet 121 is positioned on the inner surface of the convex rib 1111, and the convex rib 1111 positions the first permanent magnet 121 and the second permanent magnet 122 concentrically in the receiving cavity. Further, the convex rib 1111 includes a first convex rib 11111 and a second convex rib 11112, and a gap is formed between the first convex rib 11111 and the second convex rib 11112 to reduce the weight of the convex rib 1111. The rib 1111 is added to facilitate the positioning of the first permanent magnet 121 and the second permanent magnet 122 on the piston surface 111 , and to enable the first permanent magnet 121 and the second permanent magnet 122 to synchronously perform linear reciprocating motion in a changing magnetic field, thereby effectively extending the service life of the first permanent magnet 121 and the second permanent magnet 122 .

[0042] Please continue reading Figure 2As shown, the two piston surfaces 111 are respectively adhered to the first permanent magnet 121 and the second permanent magnet 122 on both sides of the axial direction of the piston body 110, the first permanent magnet 121 and the second permanent magnet 122 are wrapped between the two piston plates, and the side surfaces of the two piston surfaces 111 and the second permanent magnet 122 along the radial direction of the piston body 110 are concave-convex structures, and the concave-convex structure forms a channel. The permanent magnet vibrator piston assembly 100 also includes a piston ring 130 that matches the channel, the piston ring 130 is sleeved in the channel, and the piston ring 130 sleeved in the channel protrudes from the side surface of the piston body 110 along the radial direction of the piston body 110, so that the piston ring 130 directly acts on the side wall of the cylinder body 300, avoiding the permanent magnet assembly 120 from being damaged due to direct contact with the side wall of the cylinder body 300. Preferably, the piston ring 130 includes a first piston ring 131 and a second piston ring 132, and the first piston ring 131 and the second piston ring 132 are respectively sleeved in the channel. Further, the first piston ring 131 is a compression ring, and the second piston ring 132 is an oil ring. The compression ring 131 and the oil ring 132 are used together, so that the permanent magnet vibrator piston assembly 100 can further have the function of cleaning the oil residue on the side wall of the cylinder body 300 while having the piston function.

[0043] Combination Figure 1-Figure 3 As shown, the first permanent magnet 121 of the permanent magnet vibrator piston assembly 100 of the present invention is placed in the central area of ​​the piston body 110, and the second permanent magnet 122 surrounds the first permanent magnet 121 and is placed on the piston body 110. The first permanent magnet 121 and the second permanent magnet 122 are located on the same side of the axial direction of the piston body 110 and have opposite polarities, so that the central area and the peripheral area on the same side of the permanent magnet vibrator piston assembly 100 have opposite polarities, and the structure is simple; the permanent magnet assembly 120 consists of the first permanent magnet 121 and the second permanent magnet The permanent magnet body 122 is composed of a permanent magnet and a piston body. Due to the low density of the permanent magnet, the overall weight of the permanent magnet vibrator piston assembly 100 is lighter, which reduces the electromagnetic energy loss of the permanent magnet vibrator piston assembly 100 due to its large weight, and the permanent magnet vibrator piston assembly 100 made by the permanent magnet assembly 120 has low cost and is easy to promote and apply. The permanent magnet vibrator piston assembly 100 is placed in a specific changing magnetic field, and the changing magnetic field produces a magnetic effect on the permanent magnet vibrator piston assembly 100, and the magnetic force drives the permanent magnet vibrator piston assembly 100 to move in the changing magnetic field.

[0044] The other parts of the asynchronous push-pull electromagnetic vibrator compressor 1000 of this embodiment will be described in detail below.

[0045] See also Figure 1As shown, the electromagnetic assembly 400 of this embodiment generates a periodically changing magnetic field. Preferably, the electromagnetic assembly 400 includes two disc electromagnets 410, which are arranged oppositely on both sides of the permanent magnet vibrator piston assembly 100 along the axial direction of the piston body 110, and the two disc electromagnets 410 form the two side walls of the cylinder body 300 along the axial direction of the piston body 110. The disc electromagnet 410 protrudes toward the permanent magnet vibrator piston assembly 100 to form a first electromagnet 411 and a second electromagnet 412, the first electromagnet 411 corresponds to the first permanent magnet 121, the second electromagnet 412 corresponds to the second permanent magnet 122, the first electromagnet 411 and the second electromagnet 412 are located on the same side of the axial direction of the piston body 110 with opposite polarities, the two first electromagnets 411 have the same polarity facing the same side of the permanent magnet vibrator piston assembly 100, and the two second electromagnets 412 have the same polarity facing the same side of the permanent magnet vibrator piston assembly 100. Furthermore, the first electromagnet 411 is in a circular structure, and the second electromagnet 412 is in a ring-shaped structure. The first electromagnet 411 is placed in the ring-shaped structure of the second electromagnet 412. The first electromagnet 411 and the second electromagnet 412 form a concentric circle structure together. The diameter of the first electromagnet 411 is smaller than the inner ring diameter of the second electromagnet 412. An electromagnet coil 413 is wound between the first electromagnet 411 and the second electromagnet 412. After being energized, the electromagnet coil 413 forms a magnetic field with opposite polarities with the first electromagnet 411 and the second electromagnet 412. After the electromagnet coil 413 of the disc-type electromagnet 410 is energized, the first electromagnet 411 and the second electromagnet 412 generate electromagnetic induction to generate a magnetic field. The external bridge is used to tangent the positive and negative phases, so that the direction of the current flowing through the electromagnet coil 413 changes periodically, thereby causing the first electromagnet 411 and the second electromagnet 412 to generate a periodically changing magnetic field. It should be noted here that the shape and polarity of the first electromagnet 411 and the second electromagnet 412 should correspond to the shape and polarity of the corresponding first permanent magnet 121 and the second permanent magnet 122. The magnetic field generated by the electromagnetic component 400 with two periodically changing magnetic fields is not limited to the shape and polarity of the first permanent magnet 121 and the second permanent magnet 122 and the first electromagnet 411 and the second electromagnet 412, provided that the magnetic field is sufficient to push the permanent magnet component 120 to reciprocate in the piston chamber 310.

[0046] Preferably, the disc electromagnet 410 is provided with an air hole 414 along the axial direction of the piston body 110, and the piston chamber 310 is connected to the airtight cavity 230 through the air hole 414. Specifically, the air hole 414 is provided on the first electromagnet 411 along the axial direction of the piston body 110. The air hole 414 can be a large-sized air hole 414 or a plurality of small-sized air holes 414. Under the premise of ensuring that the gas in the air hole 414 can enter and exit the airtight cavity 230 and the piston chamber 310 along the air hole 414, the size and number of the air hole 414 are not limited.

[0047] Please continue reading Figure 1 As shown, the housing 200 and the cylinder body 300 form an intake passage 240 on one side of the intake port 210, and external gas flows in from the intake port 210 and flows into the airtight cavity 230 unidirectionally through the intake passage 240. A first one-way valve 260 is provided between the intake passage 240 and the cylinder body 300, and the first one-way valve 260 restricts the gas in the airtight cavity 230 from flowing into the intake passage 240 from the airtight cavity 230. The housing 200 and the cylinder body 300 form an exhaust passage 250 on one side of the exhaust port 220, and the gas in the airtight cavity 230 flows out of the exhaust passage 250 unidirectionally through the exhaust passage 250 and flows out from the exhaust port 220. A second one-way valve 270 is provided between the exhaust passage 250 and the cylinder body 300, and the second one-way valve 270 restricts the external gas from flowing into the airtight cavity 230 from the exhaust passage 250. By providing the first one-way valve 260 and the second one-way valve 270 , the airtight cavity 230 and the outside can only be one-way air intake and one-way exhaust through the air inlet 210 and the exhaust port 220 , thereby ensuring one-way entry and one-way outflow of gas.

[0048] The operation of the asynchronous push-pull electromagnetic vibrator compressor 1000 of this embodiment is described in detail below.

[0049] See also Figure 1 , Figure 2 and Figure 4As shown, since the polarity of the permanent magnet vibrator piston assembly 100 along the axial direction of the piston body 110 is constant, by setting the polarity of the first permanent magnet 121 of the permanent magnet vibrator piston assembly 100 on the left side along the axial direction of the piston body 110 to be positive, the polarity of the second permanent magnet 122 of the permanent magnet vibrator piston assembly 100 on the left side along the axial direction of the piston body 110 can be determined to be negative, the polarity of the first permanent magnet 121 of the permanent magnet vibrator piston assembly 100 on the right side along the axial direction of the piston body 110 is negative, and the polarity of the second permanent magnet 122 of the permanent magnet vibrator piston assembly 100 on the right side along the axial direction of the piston body 110 is positive. For ease of explanation, the disc electromagnet 410 located on the left side of the permanent magnet vibrator piston assembly 100 along the axial direction of the piston body 110 is referred to as the first disc electromagnet 410, and the disc electromagnet 410 located on the right side of the permanent magnet vibrator piston assembly 100 along the axial direction of the piston body 110 is referred to as the second disc electromagnet 410. By setting the electromagnet coil 413 of the first disc electromagnet 410 to pass a positive current and the electromagnet coil 413 of the second disc electromagnet 410 to pass a reverse current in the initial state, it can be determined that the first electromagnet 411 of the first disc electromagnet 410 forms a positive pole, the second electromagnet 412 of the first disc electromagnet 410 forms a negative pole, the first electromagnet 411 of the second disc electromagnet 410 forms a positive pole, and the second electromagnet 412 of the second disc electromagnet 410 forms a negative pole. It can be known from the fact that like magnets attract and opposite magnets repel each other that the permanent magnet vibrator piston assembly 100 in the initial state is repelled by the first disc electromagnet 410 and attracted by the second disc electromagnet 410 at the same time, so that the permanent magnet vibrator piston assembly 100 in the initial state is attracted to the second disc electromagnet. At this time, the initial state of the asynchronous push-pull electromagnetic vibrator compressor 1000 of this embodiment is as follows: Figure 4 (a) shown.

[0050] The time for the asynchronous push-pull electromagnetic vibrator compressor 1000 to complete a complete cycle is 2T. After the electromagnetic coil 413 of the disk-type electromagnet 410 is energized, the first electromagnet 411 and the second electromagnet 412 generate a magnetic field, and the direction of the energized current of the electromagnetic coil 413 of the disk-type electromagnet 410 changes in a positive direction and a reverse direction with a period of T, so that the disk-type electromagnet 410 generates a periodically changing magnetic field:

[0051] Phase 1: Please refer to Figure 1 , Figure 2 and Figure 4As shown, the electromagnetic coil 413 of the first disc electromagnet 410 is passed through a reverse current, the first electromagnet 411 of the first disc electromagnet 410 forms a negative pole, and the second electromagnet 412 of the first disc electromagnet 410 forms a positive pole. The electromagnetic coil 413 of the second disc electromagnet 410 is passed through a positive current, the first electromagnet 411 of the second disc electromagnet 410 forms a negative pole, and the second electromagnet 412 of the second disc electromagnet 410 forms a positive pole. As can be seen from the attraction between like poles and the repulsion between opposite poles between magnets, the permanent magnet vibrator piston assembly 100 moves toward the first disc electromagnet 410 under the attraction of the first disc electromagnet 410 and the repulsion of the second disc electromagnet 410, respectively, and the permanent magnet vibrator piston assembly 100 compresses the first piston chamber 311, and the gas in the first piston chamber 311 enters the gas chamber from the air hole 414 of the first disc electromagnet 410. The air enters the airtight cavity 230, and enters the exhaust channel 250 in one direction through the second one-way valve 270, and is discharged from the exhaust port 220 from the exhaust channel 250, that is, the permanent magnet vibrator piston assembly 100 compresses the first piston cavity 311 and compresses to do work; at the same time, the permanent magnet vibrator piston assembly 100 expands the second piston cavity 312, and the external gas enters the air inlet channel 240 from the air inlet port 210, and enters the airtight cavity 230 in one direction through the first one-way valve 260, and then flows into the second piston cavity 312 through the air hole 414 of the second disc electromagnet 410, that is, the permanent magnet vibrator piston assembly 100 expands the second piston cavity 312 and expands to do work. The time for the first stage is T. At this time, the permanent magnet vibrator piston assembly 100 moves from being adsorbed on the second disc electromagnet 410 along the axial direction of the piston body 110 toward the first disc electromagnet 410, and finally as shown in FIG. Figure 4 (f) is adsorbed on the first disc electromagnet 410, and its movement process is as follows Figure 4 (b) → Figure 4 (c) → Figure 4 (d) → Figure 4 (e) → Figure 4 In summary, in the first stage, the asynchronous push-pull electromagnetic vibrator compressor 1000 performs compression work and expansion work at the same time, and the air inlet 210 and the air outlet 220 respectively take in air and discharge air.

[0052] Phase 2: Please refer to Figure 1 , Figure 2 and Figure 4As shown, the electromagnet coil 413 of the first disc electromagnet 410 is passed through a positive current, the first electromagnet 411 of the first disc electromagnet 410 forms a positive pole, and the second electromagnet 412 of the first disc electromagnet 410 forms a negative pole. The electromagnet coil 413 of the second disc electromagnet 410 is passed through a reverse current, the first electromagnet 411 of the second disc electromagnet 410 forms a positive pole, and the second electromagnet 412 of the second disc electromagnet 410 forms a negative pole. As can be seen from the attraction between like poles and repulsion between opposite poles between magnets, the permanent magnet vibrator piston assembly 100 moves toward the second disc electromagnet 410 under the repulsion of the first disc electromagnet 410 and the attraction of the second disc electromagnet 410, respectively, and the permanent magnet vibrator piston assembly 100 compresses the second piston chamber 312, and the gas in the second piston chamber 312 enters the gas chamber 314 from the air hole 414 of the second disc electromagnet 410. The air enters the airtight cavity 230, and enters the exhaust channel 250 in one direction through the second one-way valve 270, and is discharged from the exhaust port 220 from the exhaust channel 250, that is, the permanent magnet vibrator piston assembly 100 compresses the second piston cavity 312 and compresses to do work; at the same time, the permanent magnet vibrator piston assembly 100 expands the first piston cavity 311, and the external gas enters the air inlet channel 240 from the air inlet port 210, and enters the airtight cavity 230 in one direction through the first one-way valve 260, and then flows into the first piston cavity 311 through the air hole 414 of the first disc electromagnet 410, that is, the permanent magnet vibrator piston assembly 100 expands the first piston cavity 311 and expands to do work. The second stage takes T. At this time, the permanent magnet vibrator piston assembly 100 moves from being adsorbed on the first disc electromagnet 410 along the axial direction of the piston body 110 toward the second disc electromagnet 410, and finally as shown in FIG. Figure 4 (k) is adsorbed on the second disc electromagnet 410, that is, the permanent magnet vibrator piston assembly 100 finally returns to Figure 4 (a) The asynchronous push-pull electromagnetic vibrator compressor 1000 completes a complete cycle, and its motion process is as follows Figure 4 (g) → Figure 4 (h) → Figure 4 (i) → Figure 4 (j) → Figure 4 In summary, in the second stage, the asynchronous push-pull electromagnetic vibrator compressor 1000 performs compression work and expansion work at the same time, and the air inlet 210 and the air outlet 220 respectively take in air and discharge air.

[0053] To sum up the above, the asynchronous push-pull electromagnetic vibrator compressor 1000 in the first stage and the second stage performs compression work and expansion work at the same time, realizing the full-cycle work of the asynchronous push-pull electromagnetic vibrator compressor 1000, and greatly improving the work efficiency of the asynchronous push-pull electromagnetic vibrator compressor 1000.

[0054] Combination Figure 1-Figure 4As shown, the shell 200 of the asynchronous push-pull electromagnetic vibrator compressor 1000 of this embodiment is hollow in structure to form an airtight cavity 230, external gas flows into the airtight cavity 230 in one direction through the air inlet 210, and the gas in the airtight cavity 230 flows out of the airtight cavity 230 in one direction through the exhaust port 220, so that the shell 200 constitutes a one-way inlet and outlet gas channel, the cylinder body 300 is hollow in structure to form a piston cavity 310, the permanent magnet vibrator piston assembly 100 is placed in the piston cavity 310 and the piston cavity 310 is sealed and divided into two separate The cylinder body 300 has a first piston chamber 311 and a second piston chamber 312, the first piston chamber 311 and the second piston chamber 312 are respectively connected to the airtight cavity 230, and an electromagnetic assembly 400 is arranged in the cylinder body 300. The changing magnetic field generated by the electromagnetic assembly 400 changes the magnetic force generated by the first permanent magnet 121 and the second permanent magnet 122, thereby driving the permanent magnet vibrator piston assembly 100 to perform periodic linear reciprocating motion in the piston chamber 310. The structure is simple, and the periodically changing magnetic field is effectively used to drive the permanent magnet vibrator piston assembly 100 to do reciprocating motion. The permanent magnet vibrator piston assembly 100 is composed of the permanent magnet assembly 120, which has a low density and light weight, and can effectively reduce the weight of the piston, thereby avoiding the permanent magnet vibrator piston assembly 100 from wasting too much electromagnetic energy due to excessive weight when performing reciprocating motion, and since the permanent magnet vibrator piston assembly 100 is directly driven by the periodically changing magnetic field, the permanent magnet vibrator piston assembly 100 is avoided from being directly driven by external objects, thereby effectively reducing physical losses and extending the life of the permanent magnet vibrator piston assembly 100. Lifespan: The first piston chamber 311 and the second piston chamber 312 periodically alternate between compression and expansion under a periodically changing magnetic field, so that the gas in the first piston chamber 311 and the second piston chamber 312 periodically alternates and flows out of the first piston chamber 311 and the second piston chamber 312 in one direction at the exhaust port 220. Since the first piston chamber 311 and the second piston chamber 312 periodically alternate between compression and expansion, the asynchronous push-pull electromagnetic vibrator compressor 1000 performs work throughout the entire stroke, thereby greatly improving the work efficiency.

[0055] Accordingly, see Figure 5 and Figure 6 As shown, this embodiment further provides an asynchronous dual push-pull electromagnetic vibrator compression system 10000, which includes two asynchronous push-pull electromagnetic vibrator compressors 1000 as above, the air inlets 210 of the two asynchronous push-pull electromagnetic vibrator compressors 1000 are connected to a total air inlet 11000, the exhaust ports 220 of the two asynchronous push-pull electromagnetic vibrator compressors 1000 are connected to a total exhaust port 12000, and the permanent magnet vibrator piston assemblies 100 corresponding to the two asynchronous push-pull electromagnetic vibrator compressors 1000 are alternately arranged as shown in FIG. Figure 6 The relative and opposite linear motion shown. Figure 4The asynchronous double push-pull electromagnetic vibrator compressor 1000 shown in FIG. 1 completes a complete cycle of operation. The asynchronous double push-pull electromagnetic vibrator compression system 10000 of this embodiment completes a complete cycle of operation. Figure 6 As shown, its initial state is Figure 6 (a) shows the specific process of the first stage. Figure 6 (b) → Figure 6 (c) → Figure 6 (d) → Figure 6 (e) → Figure 6 (f) The specific process of the second stage is as follows Figure 6 (g) → Figure 6 (h) → Figure 6 (i) → Figure 6 (j) → Figure 6 As shown in (k), since the operation process of the two asynchronous push-pull electromagnetic vibrator compressors 1000 in the asynchronous dual push-pull electromagnetic vibrator compression system 10000 of this embodiment is the same as the operation process of the single asynchronous push-pull electromagnetic vibrator compressor 1000, only their initial states and motion states are opposite, the two asynchronous push-pull electromagnetic vibrator compressors 1000 of the asynchronous dual push-pull electromagnetic vibrator compression system 10000 of this embodiment will not be repeated here. Now only the working mechanism of the asynchronous double push-pull electromagnetic vibrator compression system 10000 of the present embodiment is explained: since the permanent magnet vibrator piston assemblies 100 corresponding to the two asynchronous push-pull electromagnetic vibrator compressors 1000 perform relative and opposite linear motions in reverse and alternating manner, the vibrations of the two asynchronous push-pull electromagnetic vibrator compressors 1000 are effectively offset, and the damage to the asynchronous double push-pull electromagnetic vibrator compression system due to long-term vibration is avoided, and the abnormal noise caused by vibration of the asynchronous double push-pull electromagnetic vibrator compression system is avoided. In addition, the two asynchronous push-pull electromagnetic vibrator compressors 1000 are both at the total air inlet 11000 and the total exhaust port 120 00 for intake and exhaust respectively. When one asynchronous push-pull electromagnetic vibrator compressor 1000 is inhaling, the other asynchronous push-pull electromagnetic vibrator compressor 1000 is exhausting; when one asynchronous push-pull electromagnetic vibrator compressor 1000 is exhausting, the other asynchronous push-pull electromagnetic vibrator compressor 1000 is inhaling, so that the asynchronous double push-pull electromagnetic vibrator compression system can always take in and exhaust air at the total air inlet 11000 and the total exhaust port 12000 in the whole cycle. The vibrations of the two asynchronous push-pull electromagnetic vibrator compressors 1000 cancel each other out, and the power is doubled, which effectively adapts to the application occasions that require high power, low noise and small vibration.

[0056] Combination Figure 1-Figure 6As shown, the asynchronous dual push-pull electromagnetic vibrator compression system 10000 of the present invention includes two asynchronous push-pull electromagnetic vibrator compressors 1000, the air inlets 210 of the two asynchronous push-pull electromagnetic vibrator compressors 1000 are commonly connected to a total air inlet 11000, the exhaust ports 220 of the two asynchronous push-pull electromagnetic vibrator compressors 1000 are commonly connected to a total exhaust port 12000, and the permanent magnet vibrator piston assemblies 100 corresponding to the two asynchronous push-pull electromagnetic vibrator compressors 1000 are alternately performing relative and opposite linear motions, which effectively offsets the vibration of the two asynchronous push-pull electromagnetic vibrator compressors 1000 and avoids damage to the asynchronous dual push-pull electromagnetic vibrator compression system due to long-term vibration; the asynchronous push-pull electromagnetic The shell 200 of the magnetic vibrator compressor 1000 is a hollow structure to form an airtight cavity 230. External gas flows into the airtight cavity 230 unidirectionally through the air inlet 210, and the gas in the airtight cavity 230 flows out of the airtight cavity 230 unidirectionally through the exhaust port 220, so that the shell 200 constitutes a one-way gas passage. The cylinder body 300 is a hollow structure to form a piston cavity 310. The permanent magnetic vibrator piston assembly 100 is placed in the piston cavity 310 and the piston cavity 310 is sealed and divided into two independent first piston cavities 311 and second piston cavities 312. The first piston cavity 311 and the second piston cavity 312 are respectively connected to the airtight cavity 230. An electromagnetic assembly 400 is arranged in the cylinder body 300. The changing magnetic field generated by the electromagnetic assembly 400 causes the magnetic force changes generated by the first permanent magnet 121 and the second permanent magnet 122 to drive the permanent magnet vibrator piston assembly 100 to perform periodic linear reciprocating motion in the piston chamber 310. The structure is simple, and the periodically changing magnetic field is effectively used to drive the permanent magnet vibrator piston assembly 100 to perform reciprocating motion. The driving principle is simple and the manufacturing cost is low. Since the permanent magnet vibrator piston assembly 100 is composed of the permanent magnet assembly 120, the density of the permanent magnet assembly 120 is small and the weight is light, which effectively reduces the weight of the piston, avoids the permanent magnet vibrator piston assembly 100 from wasting too much electromagnetic energy due to excessive weight when performing reciprocating motion, and since the permanent magnet vibrator piston assembly 100 is directly affected by the periodic changing magnetic field, the permanent magnet vibrator piston assembly 100 is directly affected by the periodic changing magnetic field. The permanent magnet vibrator piston assembly 100 is pushed by the magnetic field, which effectively reduces physical loss and prolongs the life of the permanent magnet vibrator piston assembly 100; the first piston chamber 311 and the second piston chamber 312 periodically alternate between compression and expansion under the periodically changing magnetic field, so that the gas in the first piston chamber 311 and the second piston chamber 312 periodically alternates and flows out of the first piston chamber 311 and the second piston chamber 312 in one direction at the exhaust port 220. Since the first piston chamber 311 and the second piston chamber 312 periodically alternate between compression and expansion, the asynchronous push-pull electromagnetic vibrator compressor 1000 performs work throughout the entire stroke, greatly improving the work efficiency.

[0057] It should be noted that the present invention explains the mechanism of the asynchronous push-pull electromagnetic vibrator compressor 1000 through the inflow and outflow of gas. In fact, the asynchronous push-pull electromagnetic vibrator compressor 1000 can also perform compression work by the inflow and outflow of liquid. Of course, the asynchronous push-pull electromagnetic vibrator compressor 1000 can also perform compression work by the inflow and outflow of other fluids. The compression medium of the asynchronous push-pull electromagnetic vibrator compressor 1000 is not limited herein.

[0058] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A permanent magnet vibrator piston assembly, used in a compressor, suitable for moving in a changing magnetic field, characterized in that: The invention comprises a piston body and a permanent magnet assembly, wherein the permanent magnet assembly comprises a first permanent magnet and a second permanent magnet, wherein the first permanent magnet is disposed in the central area of ​​the piston body, and the second permanent magnet surrounds the first permanent magnet and is disposed on the piston body, wherein the first permanent magnet and the second permanent magnet are located on the same side of the axial direction of the piston body and have opposite polarities, and the piston body is driven to perform linear reciprocating motion by changing the magnetic force of the first permanent magnet and the second permanent magnet due to the changing magnetic field; The first permanent magnet is in a circular structure, and the second permanent magnet is in a ring-shaped structure. The first permanent magnet is placed in the ring-shaped structure of the second permanent magnet. The first permanent magnet and the second permanent magnet together form a concentric circle structure. The diameter of the first permanent magnet is smaller than the inner ring diameter of the second permanent magnet. The gap between the first permanent magnet and the second permanent magnet forms a non-magnetic area. The piston body includes two piston surfaces that are opposite to each other. The diameter of the piston surface is larger than the outer ring diameter of the second permanent magnet. A hollow structure is formed between the two piston surfaces to form a receiving cavity. The first permanent magnet is positioned in the central area of ​​the receiving cavity, and the second permanent magnet surrounds the periphery of the first permanent magnet and is positioned in the receiving cavity. The two piston surfaces are respectively adhered to the first permanent magnet and the second permanent magnet along the On both sides of the axial direction of the piston body, the first permanent magnet and the second permanent magnet are wrapped between the two piston surfaces, and the two piston surfaces and the side surface of the second permanent magnet along the radial direction of the piston body present a concave-convex structure, and the concave-convex structure forms a channel; the permanent magnet vibrator piston assembly also includes a piston ring that matches the channel, the piston ring is sleeved in the channel, and the piston ring sleeved in the channel protrudes from the side surface of the piston body along the radial direction of the piston body; the piston surface protrudes toward the non-magnetic area to form a convex rib that matches the non-magnetic area, the second permanent magnet is positioned on the outer surface of the convex rib, and the first permanent magnet is positioned on the inner surface of the convex rib, and the convex rib positions the first permanent magnet and the second permanent magnet concentrically in the accommodating cavity.

2. The permanent magnet vibrator piston assembly according to claim 1, characterized in that: The convex rib includes a first convex rib and a second convex rib, and a gap is formed between the first convex rib and the second convex rib.

3. The permanent magnet vibrator piston assembly according to claim 1, characterized in that: The piston ring comprises a first piston ring and a second piston ring, and the first piston ring and the second piston ring are respectively sleeved in the channel.

4. The permanent magnet vibrator piston assembly according to claim 3, characterized in that: The first piston ring is a compression ring, and the second piston ring is an oil ring.

5. The permanent magnet vibrator piston assembly according to claim 1, characterized in that: The piston surface is configured as an aluminum-based disc.

6. An asynchronous push-pull electromagnetic vibrator compressor, characterized in that: include: A shell, wherein the shell comprises an air inlet and an exhaust port, the shell is a hollow structure forming an airtight cavity, external gas flows into the airtight cavity unidirectionally through the air inlet, and the gas in the airtight cavity flows out of the airtight cavity unidirectionally through the exhaust port; A permanent magnet vibrator piston assembly, wherein the permanent magnet vibrator piston assembly is the permanent magnet vibrator piston assembly as described in any one of claims 1 to 5; A cylinder body, wherein the cylinder body is placed in the airtight cavity, the cylinder body is a hollow structure forming a piston cavity, the permanent magnet vibrator piston assembly is placed in the piston cavity, the piston cavity is sealedly divided into two independent first piston cavities and second piston cavities by the permanent magnet vibrator piston assembly, the first piston cavity and the second piston cavity are respectively connected to the airtight cavity; An electromagnetic component that periodically generates a changing magnetic field, the electromagnetic component is placed in the cylinder body, the changing magnetic field generated by the electromagnetic component causes the magnetic force changes on the first permanent magnet and the second permanent magnet, thereby driving the permanent magnet vibrator piston component to perform periodic linear reciprocating motion in the piston chamber, the linear reciprocating motion of the permanent magnet vibrator piston component in the piston chamber causes the first piston chamber and the second piston chamber to periodically alternate between compression and expansion states, external gas flows into the first piston chamber and the second piston chamber in a one-way manner at the air inlet in a one-way manner, and the gas in the first piston chamber and the second piston chamber flows out of the first piston chamber and the second piston chamber in a one-way manner at the exhaust port in a one-way manner.

7. The asynchronous push-pull electromagnetic vibrator compressor according to claim 6, characterized in that: The electromagnetic assembly includes two disc-type electromagnets, which are arranged opposite to each other on both sides of the permanent magnet vibrator piston assembly along the axial direction of the piston body, and the two disc-type electromagnets form two side walls of the cylinder body along the axial direction of the piston body.

8. The asynchronous push-pull electromagnetic vibrator compressor according to claim 7, characterized in that: The disc-type electromagnet protrudes toward the permanent magnet vibrator piston assembly to form a first electromagnet and a second electromagnet, the first electromagnet corresponds to the first permanent magnet, the second electromagnet corresponds to the second permanent magnet, the first electromagnet and the second electromagnet are located on the same side of the axial direction of the piston body and have opposite polarities, the two first electromagnets have the same polarity on the side facing the permanent magnet vibrator piston assembly, and the two second electromagnets have the same polarity on the side facing the permanent magnet vibrator piston assembly.

9. The asynchronous push-pull electromagnetic vibrator compressor according to claim 8, characterized in that: The first electromagnet has a circular structure, and the second electromagnet has a ring-shaped structure. The first electromagnet is placed inside the ring-shaped structure of the second electromagnet. The first electromagnet and the second electromagnet together form a concentric circle structure. The diameter of the first electromagnet is smaller than the inner ring diameter of the second electromagnet. An electromagnet coil is wound between the first electromagnet and the second electromagnet. When energized, the electromagnet coil forms a magnetic field with opposite polarities with the first electromagnet and the second electromagnet.

10. The asynchronous push-pull electromagnetic vibrator compressor according to claim 9, characterized in that: The disc-type electromagnet is provided with an air hole along the axial direction of the piston body, and the piston cavity is connected to the airtight cavity through the air hole.

11. The asynchronous push-pull electromagnetic vibrator compressor according to claim 8, characterized in that: The shell and the cylinder body form an air intake passage at one side of the air intake port, and external air flows in from the air intake port and flows into the airtight cavity in one direction through the air intake passage.

12. The asynchronous push-pull electromagnetic vibrator compressor according to claim 11, characterized in that: A first one-way valve is provided between the air intake passage and the cylinder body, and the first one-way valve restricts the gas in the airtight cavity from flowing from the airtight cavity into the air intake passage.

13. The asynchronous push-pull electromagnetic vibrator compressor according to claim 8, characterized in that: The shell and the cylinder body form an exhaust passage at one side of the exhaust port, and the gas in the airtight cavity flows out of the exhaust passage in one direction through the exhaust passage and flows out from the exhaust port.

14. The asynchronous push-pull electromagnetic vibrator compressor according to claim 13, characterized in that: A second one-way valve is provided between the exhaust passage and the cylinder body, and the second one-way valve restricts external gas from flowing from the exhaust passage into the airtight cavity.

15. An asynchronous dual push-pull electromagnetic vibrator compression system, characterized in that: It comprises two asynchronous push-pull electromagnetic vibrator compressors, wherein the asynchronous push-pull electromagnetic vibrator compressors are the asynchronous push-pull electromagnetic vibrator compressors described in any one of claims 8-14, the air inlets of the two asynchronous push-pull electromagnetic vibrator compressors are connected to a common air inlet, the exhaust ports of the two asynchronous push-pull electromagnetic vibrator compressors are connected to a common exhaust port, and the permanent magnet vibrator piston assemblies corresponding to the two asynchronous push-pull electromagnetic vibrator compressors perform relative and opposite linear motions alternately.

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