Linear switched reluctance motor based on modular driving cabinet

Abstract

The utility model relates to the technical field of linear switched reluctance motors, and provides a linear switched reluctance motor based on a modular driving cabinet, which comprises a base, a stator and a rotor. The stator is fixed on the base and comprises a stator winding and n stator units, and a wire is led out of the stator winding; the rotor is composed of a rotor magnetic conductive block and a rotor sliding block. Slide rails are arranged on the base on two sides of the stator; the rotor magnetic conductive blocks are located on the two sides of the stator and are arranged in the same mode. The rotor magnetic conductive block and the rotor slide block move along the slide rail; the stator winding is connected to the driving cabinet through a wire. The driving cabinet comprises a rack, a bottom plate and a sub-control plate; the rack has multiple layers, and each layer is fixedly provided with a bottom plate; at least one sub-control plate is fixed on each bottom plate; and each phase of winding is correspondingly connected with one sub-control board. According to the utility model, through cooperation of the modularized motor hardware structure and the driving cabinet, the linear switched reluctance motor has long stroke performance.

Description

Technical Field

[0001] The utility model relates to the technical field of linear switched reluctance motors, in particular to a linear switched reluctance motor based on a modular drive cabinet. Background Art

[0002] The linear switched reluctance motor is an electromagnetic device that can directly produce progressive unidirectional or back-and-forth oscillating stroke motion without a connecting rod device. It is a motor with a special structure. The linear motor is equivalent to a rotary motor laid flat along a straight line. Unlike the linear motion driven by a rotary motor, the linear motor can directly complete the linear motion without the aid of auxiliary transmission devices such as ball screws and gears. It has broad application prospects in linear transportation and other linear drive occasions.

[0003] Linear motors convert electrical energy directly into mechanical energy of linear motion, which not only omits the intermediate transmission mechanism but also reduces system losses. They are very suitable for linear direct-drive systems. Their main research and development directions are motor body optimization design and drive control technology. The latter mainly involves the fields of power electronics and automatic control. It is a necessary means to improve the speed regulation performance of the motor and is also the focus of modern linear motor research.

[0004] In the application of traditional linear switched reluctance motors, especially in industrial applications that require long strokes and high-precision control, existing technologies often face many challenges. First, in order to adapt to longer strokes, the motor needs to be expanded. Although this can improve the performance of the motor, it will also cause the motor drive circuit to become extremely complex, which will not only increase the cost of the system, but may also affect the stability and reliability of the system. Secondly, in order to meet the needs of high-load work, the motor may need to be powered up. The power increase is often accompanied by heat dissipation issues. Existing heat dissipation solutions often increase the size and cost of the system and may have a negative impact on performance. In addition, the motor structure in long-stroke applications needs to have a high degree of modularity to facilitate customized expansion according to specific application requirements. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a linear switched reluctance motor based on a modular drive cabinet, which can achieve long-stroke operation without increasing the cost too much, and has good heat dissipation capabilities and a high degree of structural modularity. Through the coordinated use of a new hardware structure and a drive cabinet, the long-stroke performance of the motor is optimized, while the complexity of the motor drive circuit is simplified, and the heat dissipation problem is effectively managed, solving the increase in drive circuit complexity and heat dissipation problems caused by the expansion of motors with long-stroke performance.

[0006] The solution adopted by the utility model is as follows: a linear switched reluctance motor based on a modular drive cabinet, comprising a base, a stator and a mover; the stator is fixed on the base, comprising a stator winding and n stator units; the stator winding comprises n winding coils, wherein n is an integer; the winding coils are marked as S1 to Sn from left to right, and are divided into four-phase windings of A, B, C, and D, each phase winding comprises m winding coils, and the continuous four-phase windings of A, B, C, and D are a group of winding coils, wherein m is an integer; each of the stator units consists of a stator wide tooth and a stator narrow tooth; the n stator units are arranged in a row according to the number of winding coils. The stator is arranged in order to form a stator with wide and narrow teeth alternately; the winding coils of the stator winding are wound on the wide teeth of the stator, and the narrow teeth of the stator are not wound with winding coils and are used as magnetic conductors; two wires are led out from each winding coil, which are an input wire and an output wire respectively; the mover is composed of a mover magnetic conductive block and a mover slider, and the mover does not contain a winding coil; slide rails are arranged on the bases on both sides of the stator; the mover magnetic conductive blocks are located on both sides of the stator, and the mover magnetic conductive blocks on both sides are the same in number, shape and size and are arranged in the same pattern; the mover magnetic conductive blocks and the mover slider move along the slide rails; the winding coils of each phase winding are connected to the drive cabinet through wires;

[0007] The drive cabinet comprises a frame, a bottom plate, and a sub-control board; the frame has multiple layers, each layer is fixed with a bottom plate, and the bottom plate is parallel to the ground; at least one sub-control board is fixed on each bottom plate; each phase winding is correspondingly connected to a sub-control board.

[0008] Furthermore, the sub-control board is provided with a winding input port, a winding output port, and a control signal input port; the same number of the winding input ports and winding output ports are respectively arranged on the left side and the upper side of the sub-control board, and the winding coils of each phase winding are respectively connected to the sub-control board corresponding to the drive cabinet through wires, the incoming wire is connected to the winding input port, and the outgoing wire is connected to the winding output port; the control signal input port is arranged on the lower side of the sub-control board, and is used to connect to the main control board to transmit the control signals of each phase;

[0009] The sub-control board is also provided with a motor power port and a circuit board power port; the motor power port is arranged on the right side of the sub-control board, and is used to connect to a DC power supply. The four-phase windings are connected in parallel to the DC power supply and supply power to the stator winding. Each phase winding conducts at most one winding coil; the circuit board power port is arranged on the lower left side of the sub-control board, and is used to connect to a system switch power supply to supply power to other components on the sub-control board.

[0010] Furthermore, a power conversion circuit is also provided on the sub-control board, and a power switch tube is provided on the power conversion circuit for controlling the on-off state of the stator winding; a current transformer is connected in series to the busbar of the power conversion circuit for protecting the power switch tube; the power conversion circuit combines the power switch tubes that control the m winding coils in each phase winding in the upper part into one, and retains the power switch tubes that control the m winding coils in each phase winding in the lower part, and each phase winding corresponds to m+1 power switch tubes; the control signals of each phase generated by the main control board are input into the sub-control board through the corresponding control signal input port to control the conduction and closing of the power switch tube.

[0011] Furthermore, a photoelectric isolation circuit is also provided on the sub-control board, and the photoelectric isolation circuit uses a photoelectric coupler to perform photoelectric isolation.

[0012] Furthermore, the drive cabinet also includes a cross fixing frame, which is fixed to the rear side of the frame by fixing bolts; two square frames of different sizes are arranged in the middle of the cross fixing frame, and have the same center point.

[0013] Furthermore, the drive cabinet also includes a heat exhaust fan, which is fixed at four right-angle positions of the square frame, and each heat exhaust fan is fixedly connected to the square frame by four bolts.

[0014] Furthermore, the base plate and the frame, as well as the sub-control board and the base plate are fixedly connected by bolts.

[0015] Furthermore, both sides of the frame are hollowed out, and both sides of the frame of each bottom plate are provided with quadrilateral hollowing out.

[0016] Furthermore, the sub-control board is also provided with a current transformer, and each phase winding passes through the current transformer to measure the current phase.

[0017] Furthermore, the wires of the winding coils are connected to the sub-control board from the rear side of the frame.

[0018] The above-mentioned beneficial effects of the utility model are as follows:

[0019] The utility model motor provides a linear switched reluctance motor with long stroke performance through the use of modular motor hardware structure and drive cabinet, while simplifying the complexity of the drive circuit and effectively managing the heat dissipation problem, thereby improving the performance and reliability of the entire drive system. The modular design of the utility model motor allows rapid configuration and expansion to adapt to different application requirements, provides higher flexibility and customizability, and saves time and cost for use.

[0020] In order to better meet the control requirements of different motors, the drive cabinet of the utility model can flexibly arrange and increase the sub-control boards according to the actual situation of the motor. Each sub-control board is equipped with multiple winding coil interfaces, which enables the drive cabinet to provide sufficient margin for the expansion of the motor. It also enables the drive cabinet to be applicable to a variety of different types of motor drives, thereby providing a reliable and flexible platform for motor driving and testing.

[0021] The drive cabinet of the utility model adopts a layered structure design, which makes the overall structure more stable, facilitates the detection and wiring of the sub-control board during the motor test, and is more intuitive; four heat exhaust fans are installed on the drive cabinet. Since there are many power switch tubes, heat is easily accumulated. The cabinet structure and the heat exhaust fan can effectively discharge the heat generated during the operation of the motor, thereby significantly improving the heat dissipation function of the entire system.

[0022] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0024] Figure 1 It is a structural schematic diagram of a motor in an embodiment of the utility model;

[0025] FIG2( a ) is a schematic diagram of a top cross-sectional structure of a stator in an embodiment of the present utility model;

[0026] FIG2( b ) is a schematic diagram of a top-view cross-sectional structure of a mover in an embodiment of the present utility model;

[0027] Figure 3 It is a partial schematic diagram of the stator winding in the embodiment of the utility model;

[0028] Figure 4 It is a general circuit diagram of the four-phase switch control of the motor in the embodiment of the utility model;

[0029] Figure 5 is a front view of a drive cabinet in an embodiment of the utility model;

[0030] Figure 6 is an oblique view of a drive cabinet in an embodiment of the utility model;

[0031] Figure 7 It is a structural schematic diagram of a sub-control board in an embodiment of the utility model.

[0032] Among them, 1-base, 2-stator, 3-mover, 31-mover slider, 32-mover magnetic block, 4-slide rail, 5-frame, 6-sub-control panel, 7-cross fixing frame, 8-heat exhaust fan, 9-fixing bolt, 10-bottom plate, 11-winding input port, 12-winding output port, 13-control signal input port, 14-motor power port, 15-circuit board power port, 16-current transformer. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by ordinary technicians in the technical field to which the utility model belongs.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention.

[0035] Embodiment 1

[0036] In order to optimize the long-stroke performance of the motor, this embodiment provides a linear switched reluctance motor based on a modular drive cabinet, such as Figure 1 As shown, it includes a base 1, a stator 2 and a mover 3; the stator 2 is fixed on the base 1, and includes a stator winding and n stator units; the stator winding includes n winding coils, where n is an integer; the winding coils are marked as S1 to Sn from left to right, and are divided into four-phase windings A, B, C, and D, and each phase winding includes m winding coils, where m is an integer; each stator unit consists of a stator wide tooth and a stator narrow tooth; the n stator units are arranged in sequence to form a stator 2 with wide and narrow teeth alternately; the winding coils of the stator winding are wound on the stator wide teeth On the upper side, the narrow teeth of the stator are not wound with winding coils and are used as magnetic conductors; each winding coil leads to two wires, which are the input wire and the output wire respectively; the mover 3 is composed of a mover magnetic conductive block 32 and a mover slider 31, and the mover 3 does not contain winding coils; slide rails 4 are arranged on the base 1 on both sides of the stator 2; the mover magnetic conductive blocks 32 are located on both sides of the stator 2, and the mover magnetic conductive blocks 32 on both sides are the same in number, shape and size, and are arranged in the same pattern; the mover magnetic conductive blocks 32 and the mover slider 31 move along the slide rails 4; the winding coils of each phase winding are connected to the drive cabinet through wires.

[0037] In this embodiment, the motor body is 2 meters in total, the stator 2 is a modular stator, and the stator winding has 24 winding coils in total, as shown in FIG. 2( a ), which are marked as S1 to S24 from left to right ( Figure 3, the four-phase windings A, B, C, and D each include six winding coils, and the winding coils are arranged in the manner of ABCDABCDABCDABCDABCDABCD, where S1, S5, S9, S13, S17, and S21 are winding coils of the A-phase winding; the continuous four-phase windings A, B, C, and D are a group of winding coils. In the motor structure of this embodiment, the number of coils of the motor stator winding increases, but it is still four-phase.

[0038] As shown in FIG. 2( b ), the two sides of the stator 2 are composed of eight mover magnetic blocks 32 of the same size and shape and arranged in the same pattern, which are marked as m1 - m8 in sequence.

[0039] The linear switched reluctance motor of this embodiment is more flexible in structure and convenient for expansion and maintenance. The stator 2 is modular and easy to disassemble and add to reduce or increase the length of the motor that can be operated. As for the motor itself, multiple motors can be connected in series to achieve the required operating length in actual situations. The modular design helps to simplify the manufacturing and assembly process, thereby reducing costs. The magnetic block design of the mover 3 can provide a stable magnetic circuit and reduce energy loss, thereby improving the performance of the motor in long-stroke applications. The wires of each phase winding are connected to the drive cabinet, allowing the drive cabinet to be physically separated from the motor. The drive cabinet contains the control and protection circuits, while the motor itself remains simple and compact, which helps to optimize the long-stroke performance of the motor.

[0040] like Figure 5 As shown, the drive cabinet includes a frame 5, a base plate 10, and a sub-control board 6; the frame 5 has multiple layers, and a base plate 10 is fixedly arranged on each layer, and the base plate 10 is parallel to the ground; at least one sub-control board 6 is fixed on each base plate 10; each phase winding is correspondingly connected to a sub-control board 6.

[0041] In this embodiment, the rack 5 has 6 layers in total; two sub-control boards 6 are fixed on each bottom plate 10 on the left and right sides.

[0042] The winding coil wires are connected to the sub-control board 6 from the rear side of the frame 5. The cross fixing frame 7 is fixed to the front side of the frame 5 by fixing bolts 9; two square frames of different sizes are arranged in the middle of the cross fixing frame 7, and the center points are the same. The heat exhaust fan 8 is fixed at four right angles of the two square frames, and each heat exhaust fan 8 is fixedly connected to the square frame by four bolts.

[0043] In this embodiment, the two lower heat exhaust fans 8 are located between the second and third layers of the rack 5 , and the two upper heat exhaust fans 8 are located between the fourth and fifth layers of the rack 5 .

[0044] The base plate 10 and the frame 5, as well as the sub-control board 6 and the base plate 10 are fixedly connected by bolts, thereby ensuring the structural stability and installation convenience of the entire drive cabinet.

[0045] Both sides of the frame 5 are hollowed out, and both sides of the frame 5 of each layer of the bottom plate 10 are provided with quadrilateral hollowing out to facilitate observation and wiring.

[0046] The drive cabinet in this embodiment has 12 sub-control boards 6, which leaves sufficient margin for motor expansion. The linear switched reluctance motor needs to control many stator windings, and the drive cabinet in this embodiment can realize the separate control of the stator windings and can be expanded.

[0047] like Figure 7 As shown, the sub-control board 6 is provided with a winding input port 11, a winding output port 12, a control signal input port 13, a motor power port 14, a circuit board power port 15, a power conversion circuit and a photoelectric isolation circuit.

[0048] The following designs are made according to different ports to meet different needs and functions:

[0049] Winding input port and winding output port:

[0050] The same number of multiple winding input ports 11 and winding output ports 12 are respectively arranged on the left side and the upper side of the sub-control board 6. The winding coils of each phase winding are connected to the sub-control board 6 corresponding to the drive cabinet through wires, the incoming line is connected to the winding input port 11, and the outgoing line is connected to the winding output port 12.

[0051] In this embodiment, each sub-control board 6 has 8 winding input ports 11 and 8 winding output ports 12. Taking 24 coils as an example, each of the four phases ABCD corresponds to a sub-control board 6, the A-phase winding has 6 winding coils, and the 6 winding coils have input lines and output lines. The 6 input lines are respectively connected to the 6 winding input ports of the sub-control board 6 corresponding to the A-phase winding, and the 6 output lines are respectively connected to the 6 winding output ports 12 of the sub-control board 6 corresponding to the A-phase winding. The 8 ports leave margin for motor expansion.

[0052] Control signal input port:

[0053] The control signal input port 13 is arranged at the lower side of the sub-control board 6, and is used to connect with the main control board to transmit each phase control signal; specifically: the electrical control signal is input into the main control board through the control signal input port 13, and then the each phase control signal generated by the main control board is transmitted to the corresponding sub-control board 6 through the corresponding control signal input port 13 of ABCD.

[0054] Among them, the digital control signal of SIMULINK is converted into an electrical control signal through a signal converter and input into the main control board.

[0055] Motor power port:

[0056] The motor power port 14 is set on the right side of the sub-control board 6, which is used to connect to the DC power supply. The four-phase windings are connected in parallel to the DC power supply and supply power to the stator winding. Each phase is independently controlled. The four phases are turned on in turn to form a cycle. Each phase winding conducts at most one winding coil. When the control signal is input by the main control board, the conducting phase is turned on according to the control signal, and the DC power supply supplies power to the stator winding. The four-phase switch control circuit of the motor is as follows: Figure 4 shown.

[0057] Circuit board power port:

[0058] The circuit board power port 15 is arranged at the lower left side of the sub-control board 6, and is used to access the system switch power supply to supply power to other components on the sub-control board 6; specifically:

[0059] The circuit board power interface 15 is connected to a 5V power supply to power the sub-control board 6. The system switching power supply adopts a boost circuit to power other components. The main function of the system switching power supply is to provide the power required for the operation of various parts in the switched reluctance motor control and drive system.

[0060] Power conversion circuit:

[0061] The power control circuit of the motor is an asymmetric half-bridge circuit. Due to the particularity of the motor structure, its power conversion circuit is relatively complex, and the number of power switch tubes is very large. Although the number of stator winding coils of the motor in this embodiment is increased, it is still four-phase, with six coils per phase. In order to achieve a more economical and reasonable control method, the power conversion circuit improves the power switch tube of each phase winding to reduce the number of power switch tubes.

[0062] A power switch tube is provided on the power conversion circuit to control the on / off state of the stator winding; the current transformer 16 is connected in series to the busbar of the power conversion circuit; the power conversion circuit combines the power switch tubes that control the m winding coils in each phase winding in the upper part into one, and retains the power switch tubes that control the m winding coils in each phase winding in the lower part, and each phase winding corresponds to m+1 power switch tubes; the control signals of each phase generated by the main control board are input into the sub-control board 6 through the corresponding control signal input port 13 to control the conduction and closing of the power switch tube.

[0063] In this embodiment, taking phase A as an example, the improved power conversion circuit combines the power switch tubes in the upper part of the phase A winding into one, and retains the power switch tubes in the lower part. Phase A has a total of 7 switch tubes, saving 5 switch tubes. Because the four-phase windings of the motor are connected in parallel to a DC power supply, each phase conducts at most one coil, so a total of 28 power switch tubes are required.

[0064] The drive cabinet of the present application includes a plurality of power switch tubes, each of which can independently drive a winding coil of the stator winding, thereby realizing multi-stage drive of the motor and long-stroke movement of the motor.

[0065] In this embodiment, 36 power switch tubes are arranged on the sub-control board 6, using IGBTs with built-in fast recovery diodes (FRDs), and the number of power switch tubes arranged is greater than the number of power switch tubes actually used by the motor, leaving a margin for motor expansion. The current transformer 16 is a current detection device used to protect the power switch tube.

[0066] IGBT (Insulated Gate Bipolar Transistor) is a semiconductor device commonly used in power electronic equipment. It combines the high input impedance of MOSFET (metal-oxide-semiconductor field-effect transistor) and the low on-state voltage drop of BJT (bipolar transistor), and also has the characteristics of fast switching and easy driving.

[0067] Photoelectric isolation circuit:

[0068] The photoelectric isolation circuit uses a photocoupler for photoelectric isolation. The IGBT used in the power switch uses a 15V voltage drive signal to control the on and off of the power switch, so a photocoupler is used here for photoelectric isolation. At the same time, the circuit can convert a 5V voltage signal into a 15V voltage signal, thereby realizing the control of a 15V voltage signal with a 5V voltage output signal.

[0069] In addition, a current transformer 16 is provided on the sub-control board 6 , and each phase winding passes through the current transformer 16 to measure the current phase, and the current is fed back through the current transformer 16 .

[0070] In the present embodiment, the drive cabinet adopts a layered structure design, which not only makes the overall structure more stable, but also facilitates the optimization of the heat dissipation system. Specifically, four heat exhaust fans 8 are installed on the drive cabinet, and these heat exhaust fans 8 can effectively discharge the heat generated during the operation of the motor, thereby significantly improving the heat dissipation function of the entire system. In addition, in order to better adapt to the control requirements of different motors, the sub-control boards 6 can be flexibly arranged and increased according to the actual conditions of the motor. Each sub-control board 6 is equipped with interfaces for 8 windings, which enables the drive cabinet to provide sufficient margin for the expansion of the motor. At the same time, this design also enables the drive cabinet to be applicable to a variety of different types of motor drives, thereby providing a reliable and flexible platform for motor drive and testing. Through this design, users can choose a suitable motor according to actual needs, and with the support of the drive cabinet, carry out efficient and reliable motor drive and testing work.

[0071] The working principle of the start-up and signal transmission of the linear switched reluctance motor based on the modular drive cabinet in this embodiment is as follows:

[0072] The windings of each phase of the motor are connected to the sub-control board 6, and each phase passes through the current transformer 16 to measure the current phase. The digital control signal in Simulink is converted into an electrical control signal through a signal converter (the signal converter is not shown in the figure, integrated in the main control board, and its function is to realize the conversion between the digital control signal in Simulink in the computer and the electrical control signal of the main control board). After receiving the signal, the main control board generates corresponding control signals according to the working state, current phase, position feedback and external input signals (such as start, stop or speed control instructions) of the motor. These signals will be distributed to different control modules (i.e., the sub-control boards 6 of phases A, B, C, and D). Among them, the position is fed back through a position sensor (the position sensor is not shown in the figure, installed on the motor, used to detect the real-time position of the motor mover 3, and feed this position information back to the main control board).

[0073] Each sub-control board 6 controls the on / off state of each phase winding through the power switch tube on the power conversion circuit according to the received control signal. Each phase winding is controlled independently and is turned on in turn according to a predetermined period.

[0074] DC power supply: When a phase winding is activated (conducting), the DC power supply supplies power to the phase winding. At this time, the electromagnetic field of stator 2 begins to act on mover 3, pushing mover 3 to move.

[0075] Motor movement: Since the motor's mover 3 is composed of a plurality of mover magnetic blocks 32, the change in the electromagnetic field of the stator 2 causes the mover 3 to be gradually pushed, thereby achieving linear motion of the motor. Each phase winding of the motor is activated in a periodic sequence to maintain continuous motion of the motor.

[0076] Each motor stator 2 and mover can be divided into multiple control sections, each section can be controlled independently. This design is particularly important in long-stroke motors, which can ensure efficient operation of the motor over a wide range.

[0077] Multi-segment control: The control signal of each motor segment is independent, ensuring that there is appropriate current excitation at different stages of the motor stroke and there is no interference between the segments. This segmented control can not only improve the overall operating efficiency of the motor, but also effectively adapt to different loads and strokes.

[0078] At the same time, the control signal of the sub-control board 6 is connected to the main control board through the control signal input port 13, and the electrical signal generated by the current transformer 16 is introduced into the signal converter to feed back to Simulink.

[0079] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A linear switched reluctance motor based on a modular drive cabinet, characterized in that: It includes a base, a stator and a mover; the stator is fixed on the base, and includes a stator winding and n stator units; the stator winding includes n winding coils, where n is an integer; the winding coils are marked as S1 to Sn from left to right, and are divided into four-phase windings of A, B, C, and D, each phase winding includes m winding coils, and the continuous four-phase windings of A, B, C, and D are a group of winding coils, where m is an integer; each of the stator units consists of a stator wide tooth and a stator narrow tooth; the n stator units are arranged in sequence to form a stator with wide and narrow teeth alternating; the stator The winding coil of the rotor winding is wound on the wide teeth of the stator, and the narrow teeth of the stator are not wound with winding coils and are used as magnetic conductors; two wires are led out from each winding coil, which are an input wire and an output wire respectively; the mover is composed of a mover magnetic conductive block and a mover slider, and the mover does not contain a winding coil; slide rails are arranged on the bases on both sides of the stator; the mover magnetic conductive blocks are located on both sides of the stator, and the mover magnetic conductive blocks on both sides are the same in number, shape and size and are arranged in the same pattern; the mover magnetic conductive blocks and the mover slider move along the slide rails; the winding coil of each phase winding is connected to the drive cabinet through a wire; The drive cabinet comprises a frame, a bottom plate, and a sub-control board; the frame has multiple layers, each layer is fixed with a bottom plate, and the bottom plate is parallel to the ground; at least one sub-control board is fixed on each bottom plate; each phase winding is correspondingly connected to a sub-control board.

2. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 1, characterized in that: The sub-control board is provided with a winding input port, a winding output port, and a control signal input port; the same number of the winding input ports and winding output ports are respectively arranged on the left and upper sides of the sub-control board, and the winding coils of each phase winding are respectively connected to the sub-control board corresponding to the drive cabinet through wires, the incoming wire is connected to the winding input port, and the outgoing wire is connected to the winding output port; the control signal input port is arranged on the lower side of the sub-control board, and is used to connect to the main control board to transmit the control signal of each phase; The sub-control board is also provided with a motor power port and a circuit board power port; the motor power port is arranged on the right side of the sub-control board, and is used to connect to a DC power supply. The four-phase windings are connected in parallel to the DC power supply and supply power to the stator winding. Each phase winding conducts at most one winding coil; the circuit board power port is arranged on the lower left side of the sub-control board, and is used to connect to a system switch power supply to supply power to other components on the sub-control board.

3. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 2, characterized in that: The sub-control board is also provided with a power conversion circuit, on which a power switch tube is provided for controlling the on-off state of the stator winding; a current transformer is connected in series to the busbar of the power conversion circuit for protecting the power switch tube; the power conversion circuit combines the power switch tubes that control the m winding coils in each phase winding in the upper part into one, and retains the power switch tubes that control the m winding coils in each phase winding in the lower part, and each phase winding corresponds to m+1 power switch tubes; the control signals of each phase generated by the main control board are input into the sub-control board through the corresponding control signal input port to control the conduction and closing of the power switch tube.

4. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 1, characterized in that: The sub-control board is also provided with a photoelectric isolation circuit, and the photoelectric isolation circuit uses a photoelectric coupler for photoelectric isolation.

5. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 1, characterized in that: The drive cabinet also includes a cross fixing frame, which is fixed to the rear side of the frame by fixing bolts; two square frames of different sizes are arranged in the middle of the cross fixing frame, and the center points are the same.

6. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 5, characterized in that: The drive cabinet also includes a heat exhaust fan, which is fixed at four right-angle positions of the square frame, and each heat exhaust fan is fixedly connected to the square frame by four bolts.

7. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 1, characterized in that: The base plate and the frame, as well as the sub-control board and the base plate are fixedly connected by bolts.

8. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 1, characterized in that: The two sides of the frame are hollowed out, and quadrilateral hollowing is arranged on both sides of the frame of each bottom plate.

9. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 1, characterized in that: The sub-control board is also provided with a current transformer, and each phase winding passes through the current transformer to measure the current phase.

10. A linear switched reluctance motor based on a modular drive cabinet as claimed in claim 1, characterized in that: The wires of the winding coils are connected to the sub-control panel from the rear side of the frame.

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