CN217769843U - High-thrust reciprocating permanent magnet linear motor and compressor thereof - Google Patents

Abstract

The utility model relates to a reciprocating type permanent magnet linear motor of high thrust and compressor thereof, including stator assembly and active cell assembly, the stator assembly includes at least a set of stator module, the active cell assembly includes moving axis and at least a set of active cell subassembly, the active cell subassembly is fixed on the moving axis, and reciprocating type permanent magnet linear motor of high thrust is through being equipped with axial elastic component wherein, elastic component and active cell assembly form an elastic system, and contain the counter weight structure that is used for matcing total quality in the active cell assembly, utilize the counter weight structure can adjust the total quality that increases the active cell assembly, carries out reasonable cooperation with the elastic coefficient of elastic component, makes elastic system's resonant frequency is between suitable frequency range, and when equipment work under resonant frequency valid state, can export bigger driving force, lower operating frequency has also reduced the processing degree of difficulty of equipment spring widely simultaneously to and the requirement of each part mechanical strength of device, thereby solved the long-term puzzled technological problem of high thrust linear motor and compressor design and preparation.

Description

High-thrust reciprocating permanent magnet linear motor and compressor thereof

Technical Field

The utility model relates to a linear electric motor compressor, concretely relates to reciprocating type permanent magnet linear electric motor of high thrust and compressor thereof.

Background

The existing reciprocating permanent magnet linear compressor generally comprises a power mechanism consisting of a permanent magnet linear motor and a compressor mechanism. The permanent magnet linear motor comprises a stator assembly consisting of a plurality of stator components, a rotor assembly consisting of a plurality of rotor components and a moving shaft; the compressor mechanism includes a cylinder, a piston, and a piston rod. The stator assembly is annular, the rotor component is fixedly arranged on the moving shaft, the rotor component is opposite to the stator component, and the piston rod is in linkage connection with the moving shaft. The permanent magnet linear motor enables the stator assembly to generate an electromagnetic field by inputting exciting current into the exciting coil, and drives the rotor assembly to reciprocate and drive the piston rod and the piston under the interaction of the electromagnetic field and the permanent magnet, so that the processes of circular suction, compression and discharge are completed. In order to provide a certain restoring force for the rotor assembly in the working process and prevent the compressor from hitting the cylinder, elastic members such as oscillating springs and the like are arranged in the conventional reciprocating type permanent magnet linear compressor to provide a certain elastic restoring oscillating force for the rotor assembly in the axial direction, so that higher working efficiency is achieved. The reciprocating permanent magnet linear compressor has the characteristics of reasonable and compact structure and small volume, so that the reciprocating permanent magnet linear compressor can be used as a compressor of refrigeration equipment such as an air conditioner, a refrigerator and the like.

Pump equipment applied to the fields of chemical engineering, pharmacy, aerospace, aviation and the like needs larger thrust compression equipment, and has higher requirements on the working efficiency of the equipment. However, the current global academic theory and international linear motor industry macros such as LG corporation in korea, enbrazil corporation, domestic compressor industry macros, etc. are designed for the reciprocating stroke design and power (thrust) of linear motors, and the design is guided by the theory that the lighter the mover assembly in the linear motor is, the more energy is saved by excitation electric propulsion. Therefore, when the linear motor compressor is researched to reciprocate, the linear motor piston compressor is designed and manufactured globally by matching a resonant circuit with the elastic force of an oscillating spring of the linear motor. However, according to the above design concept, if the stroke of the reciprocating linear motor is increased and the flow and pressure of the compressed gas are increased, the power (thrust) of the motor can be increased only by increasing the elastic coefficient of the spring, in this case, the operating frequency (reciprocating motion) of the linear motor will also increase geometrically, but this will cause the mover assembly to move violently and to be hard to bear and to generate noise. Because of the above technical problems, it is difficult for a large linear motor to operate at such a high frequency (speed), and a spring manufacturing technology suitable for a large linear motor compressor device has not been solved, so that the spring manufacturing technology has been a world problem in the manufacturing technology of large linear motor piston compressors and large deep cryogenic refrigerators since the last century.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reciprocating type permanent magnet linear motor of simple structure, reasonable high thrust to the not enough of prior art existence.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a reciprocating type permanent magnet linear motor of big thrust, includes stator assembly and active cell assembly, the stator assembly includes at least a set of stator module, the active cell assembly includes moving axis and at least a set of active cell subassembly, the active cell subassembly is fixed on the moving axis, stator module with the active cell subassembly sets up relatively, the active cell subassembly on with the corresponding position of stator module is equipped with the permanent magnet, the axial reciprocating slidable ground of active cell assembly sets up its characterized in that: still be equipped with axial elastic component among the reciprocating type permanent magnet linear electric motor of high thrust, elastic component and active cell assembly form an elastic system, the elastic component makes active cell assembly have one with active cell assembly motion direction opposite's elastic damping force, contain the counter weight structure that is used for matching total mass among the active cell assembly, the counter weight structure is including adding one or more in establishing the total or local size of counter weight, increaseing parts, or adding the material mode of high proportion to reach the weight of aggravating the active cell assembly.

Compared with the prior art, the beneficial effect is: the utility model discloses reciprocating type permanent magnet linear electric motor of high thrust is through being equipped with axial elastic component wherein, elastic component and active cell assembly form an elastic system, and contain the counter weight structure that is used for matcing the total quality of active cell assembly among the active cell assembly, utilize the counter weight structure can adjust the total quality that increases the active cell assembly, carries out reasonable cooperation with the elastic coefficient of elastic component, makes elastic system's resonant frequency and amplitude (being the biggest stroke of moving axis) between suitable scope, works under the resonant frequency active state as equipment, can output bigger driving force, lower operating frequency has simultaneously also reduced the processing degree of difficulty of equipment spring widely to and the requirement to each part mechanical strength of device, thereby solved the long-term technological problem of puzzlement large thrust linear electric motor design and preparation.

As the utility model discloses further set up, linear electric motor is equipped with multiunit active cell subassembly and multiunit stator module, and multiunit active cell subassembly is the annular and distributes and fix on the moving axis, multiunit stator module is the annular and centers on multiunit active cell subassembly distributes and fixes the setting.

As the utility model discloses further set up, still be equipped with the frame subassembly, be equipped with the stator in the frame subassembly and hold the chamber, the bilateral symmetry that the stator held the chamber is provided with the spring and holds the chamber, the stator holds chamber and spring and holds chamber center and be equipped with the shaft hole and link up, the stator assembly sets up in the stator holds the chamber, the elastic component sets up in the spring holds the chamber.

As the utility model is further provided, the stand component comprises a left stand and a right stand, the left stand and the right stand are hollow tubular structures, and an inner cavity forms the spring containing cavity; the left base and the right base are arranged at intervals, end faces of the left base and the right base are opposite, a space between the end faces of the left base and the right base forms the stator cavity, and the stator assembly is clamped between the end faces of the left base and the right base; and the left machine base and the right machine base are both provided with counterweight cavities, counterweight pieces are symmetrically and fixedly arranged on the moving shafts on two sides of the rotor assembly, and the counterweight pieces are positioned in the counterweight cavities.

As the utility model discloses further set up, the counter weight holds and is the fixed a plurality of induction coil of group that are equipped with of annular distribution on the chamber lateral wall, moving axis on with a plurality of magnetic component constitutions that move that the corresponding rigidity of a plurality of induction coil of group is equipped with including a plurality of permanent magnets the counterweight, induction coil with move magnetic component and constitute the response electricity generation subassembly.

As the utility model discloses further set up, the elastic component comprises helical compression spring, helical compression spring sets up the both sides at the active cell subassembly, helical compression spring's one end is supported on the active cell assembly, the other end supports on the frame subassembly.

As the utility model discloses further set up, the elastic component comprises plate spring, plate spring wholly is circular platelike, and evenly distributed has many to pass through the groove by the middle part to the arc of outside edge gradual opening extension on it, and the center is equipped with the shaft hole, the active cell assembly pass through the moving axis both ends respectively with plate spring's shaft hole fixed coordination, plate spring through peripheral fixed set up in the spring holds the chamber, make active cell assembly axially movably sets up in the frame subassembly.

Another object of the present invention is to provide a reciprocating permanent magnet linear motor driven high thrust compressor, which is not enough for the prior art.

In order to achieve the above object, the utility model provides a reciprocating type permanent magnet linear motor compressor of high thrust, including aforementioned arbitrary reciprocating type permanent magnet linear motor of high thrust, its characterized in that: the compressor mechanism comprises a cylinder body, a piston and a piston rod, and an air inlet and an air outlet are formed in the cylinder body; the compressor mechanism is coaxially and fixedly arranged at the end part of the high-thrust reciprocating permanent magnet linear motor, a piston rod of the compressor mechanism is axially connected with a moving shaft of the high-thrust reciprocating permanent magnet linear motor in a linkage manner, and the piston rod form a part of a rotor assembly.

As the utility model discloses further set up, be equipped with two sets ofly compressor mechanism, the coaxial opposition of two sets of compressor mechanism sets up the reciprocating type permanent magnet linear electric motor both ends of high thrust, two sets of compressor mechanism's piston rod respectively with the reciprocating type permanent magnet linear electric motor's of high thrust moving axis both ends axial linkage connect, elastic component, active cell assembly and two sets of pistons and piston rod constitute elastic system.

As the utility model discloses further set up, both ends along the piston direction of motion on the cylinder body all are equipped with air inlet and gas vent respectively.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

It is to be noted that the terms "comprises" and "comprising," as well as any variations thereof, in the description and claims of this application are intended to cover non-exclusive inclusions, and that the terms "upper", "lower", "inner", "outer", "middle", and the like, indicate orientations or positional relationships based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Drawings

Fig. 1 is a schematic view of an appearance three-dimensional structure of embodiment 1 of the present invention;

fig. 2 is a front view of embodiment 1 of the present invention;

FIG. 3 is a cross-sectional view of the structure of A-A of FIG. 2;

fig. 4 is a schematic perspective view of a stator assembly and a mover assembly according to embodiment 2 of the present invention;

fig. 5 is a sectional view of the internal structure of embodiment 3 of the present invention;

fig. 6 is a schematic view of a partially exploded perspective structure according to embodiment 3 of the present invention;

fig. 7 is a schematic view of an appearance three-dimensional structure of an embodiment of the mover assembly of the present invention;

fig. 8 is a front view of an embodiment of the mover assembly of the present invention;

FIG. 9 is a cross-sectional view of the structure of B-B of FIG. 8;

fig. 10 is a schematic cross-sectional view of an embodiment of the magnet holder according to the present invention;

fig. 11 is a schematic view of an appearance three-dimensional structure according to embodiment 4 of the present invention;

fig. 12 is a front view of embodiment 4 of the present invention;

FIG. 13 is a cross-sectional view of the structure of C-C of FIG. 12;

fig. 14 is a partial exploded view of embodiment 4 of the present invention;

fig. 15 is a second partial exploded view of embodiment 4 of the present invention;

fig. 16 is a third exploded view of a partial structure according to the embodiment 4 of the present invention;

fig. 17 is a fourth schematic view of the embodiment 4 of the present invention in a partially exploded manner;

fig. 18 is a schematic view of an appearance three-dimensional structure of an embodiment of the left base of the present invention;

fig. 19 is a schematic view of an appearance three-dimensional structure of the embodiment of the stator assembly of the present invention.

Detailed Description

The utility model discloses reciprocating type permanent magnet linear electric motor of high thrust includes stator assembly and active cell assembly, the stator assembly includes at least a set of stator module 1, the active cell assembly includes moving axis 3 and at least a set of active cell subassembly 2, active cell subassembly 2 is fixed on moving axis 3, stator module 1 with active cell subassembly 2 sets up relatively, active cell subassembly 2 go up with the corresponding position of stator module 1 is equipped with permanent magnet 201, the reciprocal slidable ground of active cell assembly axial sets up. The high-thrust reciprocating permanent magnet linear motor is characterized in that an axial elastic part 4 is further arranged in the high-thrust reciprocating permanent magnet linear motor, the elastic part 4 and the rotor assembly form an elastic system, the elastic part 4 enables the rotor assembly to have elastic damping force opposite to the motion direction of the rotor assembly, a counterweight structure used for matching the total mass is arranged in the rotor assembly, and the counterweight structure comprises one or more of a counterweight 5, an increase in the overall or local size of a component and a material mode of high specific gravity (namely, the specific gravity is larger than that of a material which is conventionally used for the component and is a main flow material), so that the rotor assembly is increased to be in proper weight.

The utility model discloses reciprocating type permanent magnet linear electric motor of high thrust's stator module 1 and active cell subassembly 2's quantity can be confirmed according to the technical index of concrete design, and the concrete structure of stator assembly and active cell assembly can be according to stator module 1 and active cell subassembly 2's quantity and decide. When the number of the stator assemblies 1 and the mover assemblies 2 is small, such as only one set, the mover assemblies 2 can be fixed on the moving shaft 3, and the stator assemblies 1 are fixedly arranged on one side of the mover assemblies 2; in the case of two groups, the rotor assemblies 2 can be symmetrically fixed on two sides of the moving shaft 3, and the stator assemblies 1 are opposite to the rotor assemblies 2 and symmetrically fixed on the outer sides of the rotor assemblies 2 on two sides; when being equipped with stator module 1 and active cell subassembly 2 more than three groups or three groups, multiunit active cell subassembly 2 preferably is the annular distribution and fixes on moving axis 3, multiunit stator module 1 is the annular and centers on multiunit active cell subassembly 2 distributes fixedly the setting.

The invention will be further described with reference to preferred embodiments and the accompanying drawings in which:

specific example 1: as shown in fig. 1-3, in this embodiment, the high thrust reciprocating permanent magnet linear motor includes a stator assembly and a mover assembly, the stator assembly includes four stator assemblies 1, and the mover assembly includes a moving shaft 3 and four mover assemblies 2. The moving shaft 3 is a stepped shaft rod-shaped member provided with a plurality of shoulder steps for limiting, the stator assembly 1 is composed of an E-shaped iron core 101 and an excitation coil 102, as shown in fig. 7-10, the mover assembly 2 is composed of permanent magnets 201 and magnet seats 202, the permanent magnets 201 are fixed on the magnet seats 202 and then fixed on the moving shaft 3 in an annular distribution, and the magnet seats 202 between the groups can be arranged in a mutually separated manner or in an integrated manner. In this embodiment, the magnet base 202 is integrally a cylindrical structure, eight magnet cavities 203 with two circles are arranged in the side wall of the magnet base 202 at intervals, the permanent magnet 201 is fixedly arranged in the magnet cavities 203, the eight magnet cavities 203 and the permanent magnet 201 are uniformly distributed along the circumference and divided into four pairs to form the four groups of mover components 2, the center hole of the magnet base 202 is adapted to the moving shaft 3, and the four groups of mover components 2 are matched with the moving shaft 3 through the center hole of the magnet base 202 and are fixedly arranged on the moving shaft 3 to form the mover assembly.

In order to facilitate installation, the high-thrust reciprocating permanent magnet linear motor is further provided with a base assembly 6, a stator containing cavity 604 is arranged in the base assembly 6, spring containing cavities 603 are symmetrically arranged on two sides of the stator containing cavity 604, shaft holes are formed in the centers of the stator containing cavity 604 and the spring containing cavity 603 and are communicated with each other, the stator assembly is arranged in the stator containing cavity 604, and the elastic part 4 is arranged in the spring containing cavity 603. The specific shapes of the stator cavity 604 and the spring cavity 603 may be set according to the specific shapes of the stator assembly and the elastic member 4.

In this specific embodiment, the base assembly 6 includes a left base 601 and a right base 602, the left base 601 and the right base 602 are hollow cylindrical structures, and an inner cavity forms the spring receiving cavity 603; for convenience of manufacturing and assembling, the left base 601 and the right base 602 may be composed of a flange, an annular base, and an end cover.

The left base 601 and the right base 602 are arranged at intervals and end faces oppositely and sleeved on the rotor assembly, the two sides of the rotor assembly 2 are located, a space between the end faces of the left base 601 and the right base 602 forms the stator cavity 604, and four groups of stator assemblies 1 of the stator assembly are annularly surrounded by four groups of rotor assemblies 2 which are uniformly distributed and fixedly clamped between the end faces of the left base 601 and the right base 602. In order to facilitate accurate positioning, in this embodiment, as shown in fig. 19, positioning convex ribs 1011 are disposed on two side walls of the E-shaped iron core 101 in the stator assembly 1, which are opposite to the end surfaces of the left base 601 and the right base 602, as shown in fig. 18, corresponding positioning grooves 605 (or vice versa) are disposed on the end surfaces of the left base 601 and the right base 602, which correspond to the positioning convex ribs 1011, and the four sets of stator assemblies 1 are accurately disposed between the end surfaces of the left base 601 and the right base 602 through the matching between the positioning convex ribs 1011 and the positioning grooves 605. The arrangement can simplify the assembly of the equipment, reduce the use of materials and reduce the overall weight of the equipment.

The utility model discloses a reciprocating type permanent magnet linear motor of high thrust, in order to realize the purpose of counter weight, can directly select moving axis 3 for use the metal material preparation that the proportion is greater than the steel, perhaps imbed other material blocks that the proportion is greater than 3 bulk material of moving axis proportion in moving axis 3, also can satisfy under the condition of required mechanical strength at 3 diameters of moving axis, through extra whole or the local purpose that reaches adjustment weight with thick moving axis 3 diameters.

In this embodiment, a manner that the balance weights 5 are symmetrically and fixedly arranged on the moving shaft 3 at two sides of the mover assembly 2 is adopted, the shape of the balance weights 5 is preferably a regular shape symmetrical about the center, the center of gravity is located on the central axis, such as a homogeneous disk type (as shown in fig. 2) or a conical shape, the left base 601 and the right base 602 are both provided with a balance weight containing cavity 606, the balance weights 5 are movably located in the balance weight containing cavity 606 along the axial direction of the moving shaft 3, and the balance weight containing cavity 606 and the spring containing cavity 603 may also be connected into one containing cavity.

In this embodiment, the elastic member 4 is formed of a helical compression spring, and a pair of the elastic members are provided. The coil compression spring sets up respectively in the both sides of runner subassembly 2, specifically, the coil compression spring clearance fit cover is established on the moving axis 3 of weight 5 for the runner subassembly 2 outside, and is a pair of coil compression spring's one end is supported on the weight 5 of runner assembly (or moving axis 3's shoulder rank), and the other end supports respectively on frame subassembly 6 (left frame 601 and right frame 602). The resilient member 4 may also consist of a plurality of pairs of helical compression springs which are evenly distributed around the movable shaft 3, preferably 3-6 pairs. The paired helical compression springs are respectively arranged on two sides (along the axial direction of the moving shaft 3) of the rotor assembly 2, one end of each helical compression spring is positioned and abutted on the base assembly 6 or is fixedly arranged, and the other end of each helical compression spring is positioned and abutted on the rotor assembly.

Specific example 2: as another specific embodiment of the present invention, the elastic member 4 may also be formed of a flat spring. The whole flat spring is in a circular plate shape, a plurality of arc-shaped through grooves which gradually extend from the middle part to the outer edge are uniformly distributed on the flat spring, and a shaft hole is formed in the center of the flat spring. In this embodiment, a pair of flat springs is also provided, the flat springs may be disposed between the mover assembly 2 and the weight member 5, or between the weight member 5 and the outer ends of the left base 601 and the right base 602, the weight member 5 is conical (as shown in fig. 4), the mover assembly is respectively and fixedly engaged with the shaft holes of the flat springs through two ends of the moving shaft 3, the flat springs are fixedly disposed in the spring accommodating cavities 603 through the peripheries, so that the mover assembly is axially and movably disposed in the base assembly 6, and two ends of the moving shaft 3 respectively extend out from the end faces of the outer ends of the left base 601 and the right base 602. The centers of the end faces of the outer sides of the left base 601 and the right base 602 can also be provided with shaft sleeves matched with the moving shaft 3, so that the mover assembly can be better supported and accurately guided.

Specific example 3: as another embodiment of the present invention, as shown in fig. 5 and 6, on the basis of the structure of the above-mentioned various high-thrust reciprocating permanent magnet linear motors, it is further possible that the counterweight holding cavity 606 sidewall is provided with a plurality of groups of induction coils 7 in an annular distribution manner, the moving shaft 3 is provided with a plurality of moving magnetic assemblies 8 including a plurality of permanent magnets 201 in a fixed position corresponding to the plurality of groups of induction coils 7, and the induction coils 7 and the moving magnetic assemblies 8 constitute an induction power generation assembly. I.e. the induction coil 7 serves both as a weight 5 and constitutes one of the induction power generating assemblies. Through the arrangement, the induction coil 7 and the moving magnet assembly 8 form an induction power generation assembly, so that power can be generated when the high-thrust reciprocating type permanent magnet linear motor works, the working efficiency of equipment is improved, and the energy consumption is reduced.

The utility model discloses not only provide a reciprocating type permanent magnet linear motor of high thrust, on this basis, still provided reciprocating type permanent magnet linear motor driven high thrust compressor. The following is a preferred embodiment.

The utility model discloses reciprocating type permanent magnet linear motor compressor of high thrust includes aforementioned arbitrary reciprocating type permanent magnet linear motor of high thrust to and a set of compressor mechanism 9. The compressor mechanism 9 comprises a cylinder 901, a piston 902 and a piston rod 903, wherein the cylinder 901 is provided with an air inlet 9011 and an air outlet 9012; the compressor mechanism 9 is coaxially and fixedly arranged at one side end of the high-thrust reciprocating type permanent magnet linear motor and is fixedly connected with one end (a left base 601 or a right base 602) of the base assembly 6, a piston rod 903 of the compressor mechanism 9 is axially linked with a moving shaft 3 of the high-thrust reciprocating type permanent magnet linear motor, the piston rod 903 is arranged in a manner of being overlapped with a central shaft of the moving shaft 3, and the piston 902 and the piston rod 903 form one part of a rotor assembly.

Specific example 4: as shown in fig. 11-17, the high thrust reciprocating permanent magnet linear motor compressor of the present invention can also be configured as a dual compressor to improve the compression efficiency. Specifically, the high-thrust reciprocating permanent magnet linear motor compressor comprises the high-thrust reciprocating permanent magnet linear motor and two sets of compressor mechanisms 9. The compressor mechanism 9 comprises a cylinder 901, a piston 902 and a piston rod 903, wherein the cylinder 901 is provided with an air inlet 9011 and an air outlet 9012; two sets of compressor mechanism 9 is coaxial fixed setting respectively and is in reciprocating type permanent magnet linear motor both sides tip of high thrust, with frame subassembly 6 both ends (left frame 601 and right frame 602) tip fixed connection, compressor mechanism 9's piston rod 903 with reciprocating type permanent magnet linear motor's of high thrust moving axis 3 axial linkage be connected, piston rod 903 and the 3 center shafts coincidence of moving axis set up, two sets of piston 902 and piston rod 903 constitute a part of active cell assembly.

As shown in fig. 13, in the above embodiment, an air inlet 9011 and an air outlet 9012 may be respectively disposed at two ends of the cylinder 901 along the moving direction of the piston 902, and the piston 902 reciprocates in the middle of the cylinder 901. Through the arrangement, the compressor is in the working process, the piston 902 moves back and forth to perform air inlet and air exhaust, and the efficiency of the compressor is further improved.

In the above embodiment of the high thrust reciprocating permanent magnet linear motor compressor, the counterweight structure may be achieved by one or more of the aforementioned manners of adding the counterweight 5 to the moving shaft 3 or the mover assembly 1, increasing the overall or local size of the component, or adding a high specific gravity material, or may be achieved by separately using a manner of manufacturing the piston 902 and/or the piston rod 903 with a high specific gravity material having a specific gravity greater than that of an aluminum alloy material commonly used for the piston 902 and the piston rod 903 at present, or by combining the aforementioned manners on the basis of the above manner to adjust the total mass of the mover assembly.

The above examples are merely examples for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (12)

1. The utility model provides a reciprocating type permanent magnet linear motor of big thrust, includes stator assembly and active cell assembly, the stator assembly includes at least a set of stator module, the active cell assembly includes moving axis and at least a set of active cell subassembly, the active cell subassembly is fixed on the moving axis, stator module with the active cell subassembly sets up relatively, the active cell subassembly on with the corresponding position of stator module is equipped with the permanent magnet, the axial reciprocating slidable ground of active cell assembly sets up its characterized in that: still be equipped with axial elastic component among the reciprocating type permanent magnet linear electric motor of high thrust, elastic component and active cell assembly form an elastic system, the elastic component makes the active cell assembly have one with active cell assembly motion direction opposite's elastic damping force, contain the counter weight structure that is used for matcing total mass among the active cell assembly, the counter weight structure is including adding one or more in the whole or the local size of establishing the counter weight, increaseing the part, or adding the material mode of high proportion to reach the weight of aggravating the active cell assembly.

2. The high thrust reciprocating permanent magnet linear motor of claim 1, wherein: the linear motor is provided with a plurality of groups of rotor assemblies and a plurality of groups of stator assemblies, the rotor assemblies are distributed and fixed on the moving shaft in an annular mode, and the stator assemblies are distributed and fixed around the rotor assemblies in an annular mode.

3. The high thrust reciprocating permanent magnet linear motor according to claim 2, wherein: the motor is characterized by further comprising a base assembly, a stator containing cavity is arranged in the base assembly, spring containing cavities are symmetrically arranged on two sides of the stator containing cavity, shaft holes are formed in the centers of the stator containing cavity and the spring containing cavity and communicated with each other, the stator assembly is arranged in the stator containing cavity, and the elastic piece is arranged in the spring containing cavity.

4. The high thrust reciprocating permanent magnet linear motor of claim 3, wherein: the engine base assembly comprises a left engine base and a right engine base, the left engine base and the right engine base are of hollow cylindrical structures, and an inner cavity forms the spring containing cavity; the left base and the right base are arranged at intervals, end faces of the left base and the right base are opposite, a space between the end faces of the left base and the right base forms the stator cavity, and the stator assembly is clamped between the end faces of the left base and the right base; the left base and the right base are both provided with a counterweight containing cavity, counterweight pieces are symmetrically and fixedly arranged on the moving shafts on two sides of the rotor assembly, and the counterweight pieces are located in the counterweight containing cavities.

5. The high thrust reciprocating permanent magnet linear motor of claim 4, wherein: the elastic part is composed of a spiral compression spring, the spiral compression spring is arranged on two sides of the rotor assembly, one end of the spiral compression spring is abutted on the rotor assembly, and the other end of the spiral compression spring is abutted on the engine base assembly.

6. The high thrust reciprocating permanent magnet linear motor of claim 5, wherein: the counterweight cavity is characterized in that a plurality of groups of induction coils are fixedly arranged on the side wall of the counterweight cavity in an annular distribution mode, a plurality of movable magnetic assemblies comprising a plurality of permanent magnets are fixedly arranged on the movable shaft and correspond to the plurality of groups of induction coils to form the counterweight, and the induction coils and the movable magnetic assemblies form an induction power generation assembly.

7. The high thrust reciprocating permanent magnet linear motor according to claim 4, wherein: the elastic piece is composed of a flat spring, the flat spring is integrally in a circular plate shape, a plurality of arc-shaped through grooves which gradually extend from the middle to the outer edge are uniformly distributed on the flat spring, a shaft hole is formed in the center of the flat spring, the two ends of the rotor assembly are respectively and fixedly matched with the shaft hole of the flat spring through a movable shaft, the flat spring is fixedly arranged in the spring accommodating cavity through the periphery, and the rotor assembly is axially and movably arranged in the engine base component.

8. The high thrust reciprocating permanent magnet linear motor of claim 7, wherein: the counterweight cavity is characterized in that a plurality of groups of induction coils are fixedly arranged on the side wall of the counterweight cavity in an annular distribution mode, a plurality of movable magnetic assemblies comprising a plurality of permanent magnets are fixedly arranged on the movable shaft and correspond to the plurality of groups of induction coils to form the counterweight, and the induction coils and the movable magnetic assemblies form an induction power generation assembly.

9. A high thrust reciprocating permanent magnet linear motor compressor comprising the high thrust reciprocating permanent magnet linear motor according to any one of claims 1 to 8, characterized in that: the compressor mechanism comprises a cylinder body, a piston and a piston rod, and an air inlet and an air outlet are formed in the cylinder body; the compressor mechanism is coaxially and fixedly arranged at the end part of the high-thrust reciprocating permanent magnet linear motor, a piston rod of the compressor mechanism is axially connected with a moving shaft of the high-thrust reciprocating permanent magnet linear motor in a linkage manner, and the piston rod form a part of a rotor assembly.

10. The high thrust reciprocating permanent magnet linear motor compressor of claim 9, wherein: the two sets of compressor mechanisms are coaxially and oppositely arranged at two ends of the high-thrust reciprocating type permanent magnet linear motor, piston rods of the two sets of compressor mechanisms are axially linked with two ends of a moving shaft of the high-thrust reciprocating type permanent magnet linear motor respectively, and the elastic part, the rotor assembly, the two sets of pistons and the piston rods form the elastic system.

11. The high thrust reciprocating permanent magnet linear motor compressor of claim 10, wherein: and both ends of the cylinder body along the motion direction of the piston are respectively provided with an air inlet and an air outlet.

12. The high thrust reciprocating permanent magnet linear motor compressor of claim 9, wherein: and the two ends of the cylinder body along the motion direction of the piston are respectively provided with an air inlet and an air outlet.

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