Linear motor module

Abstract

The utility model discloses a linear motor module. The linear motor module comprises a base; the stator assembly is arranged on the base; the sliding assemblies are arranged on the base in the length direction of the base and located on the two opposite sides of the stator assembly; the supporting assembly is arranged above the stator assembly and is connected with the sliding assembly; the rotor assemblies are connected with the supporting assembly and located between the supporting assembly and the stator assembly; and the plurality of magnetic steels are arranged on the sides, close to the stator assembly, of the rotor assemblies, and when the plurality of magnetic steels interact with the stator assembly, the plurality of rotor assemblies and the supporting assembly linearly move on the base through the sliding assembly. According to the linear motor module, the plurality of magnetic steels are arranged, and the magnetic steels are arranged on the side, close to the stator assembly, of the rotor assembly, so that the layout and the number of the magnetic steels are optimized, the dependence on permanent magnet materials is reduced, and the cost of the linear motor module is reduced.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a linear motor module. Background Art

[0002] In the field of linear motor technology, the design and performance of linear motor modules have always been a focus of research and application. Linear motor modules are widely used in industries such as transportation and CNC machining due to their simple structure, high positioning accuracy, fast response, and safe and reliable operation.

[0003] Existing linear motor modules typically use permanent magnets to cover the entire travel of the magnetic track. This design method is highly dependent on the permanent magnet material and the linear motor module is expensive. Utility Model Content

[0004] The present application mainly provides a linear motor module to solve the problems of high dependence on permanent magnetic materials and high cost of linear motor modules.

[0005] The present application provides a linear motor module, comprising:

[0006] base;

[0007] a stator assembly, disposed on the base;

[0008] a sliding assembly, disposed on the base along a length direction of the base and located on opposite sides of the stator assembly;

[0009] A support assembly is provided above the stator assembly and connected to the sliding assembly;

[0010] a plurality of mover assemblies connected to the support assembly and located between the support assembly and the stator assembly;

[0011] A plurality of magnetic steels are arranged on a side of the movable assembly close to the stator assembly. When the plurality of magnetic steels interact with the stator assembly, the plurality of movable assemblies and the supporting assembly move linearly on the base through the sliding assembly.

[0012] Wherein, the supporting assembly includes a supporting member and a fixing member, the fixing member is arranged above the multiple movable sub-assemblies, the supporting member is arranged above the fixing member, the supporting member and the sliding assembly are respectively connected to the fixing member, and the fixing member is used to position the multiple movable sub-assemblies.

[0013] Wherein, the fixing member includes a first fixing body and multiple limiting parts, and the multiple limiting parts are spaced apart on the side of the first fixing body close to the stator assembly. Any one of the movable sub-assemblies is positioned by two adjacent limiting parts, so that the fixing member can position the multiple movable sub-assemblies.

[0014] In which, the fixing member includes a second fixing body, a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are arranged in parallel on a side of the second fixing body close to the stator assembly, the shape of the side of the first limiting portion close to the second limiting portion is a first step-shaped, the first step-shaped gradually moves away from the second limiting portion along the length direction of the first limiting portion, the shape of the side of the second limiting portion close to the first limiting portion is a second step-shaped, the second step-shaped gradually approaches the first limiting portion along the length direction of the second limiting portion, and the fixing member positions the multiple movable sub-assemblies through the first step-shaped of the first limiting portion and the second step-shaped of the second limiting portion.

[0015] Wherein, the stator assembly is in the shape of a tooth and is arranged on the base.

[0016] Wherein, the sliding assembly includes two slide rails and two sliders, each slider is arranged on the corresponding slide rail, the two slide rails are arranged in parallel on the base and are respectively located on both sides of the stator assembly, and the fixing member is arranged on the two sliders.

[0017] When the plurality of magnetic steels interact with the stator assembly, the fixing member and the supporting member move on the slide rail via the slider, and the fixing member and the supporting member move along the length direction of the base.

[0018] Among them, the movable assembly includes a movable core and a winding, one end of the movable core is connected to the fixing member, the other end of the movable core is tooth-shaped, and the magnetic steel is arranged on the other end of the movable core, and the winding is wound in the tooth groove of the other end of the movable core.

[0019] In which, the linear motor module also includes a magnetic scale and a magnetic scale reader. The magnetic scale is located on one side of the base, and the magnetic scale reader is connected to the support assembly. When the multiple magnetic steels interact with the stator assembly, the support assembly drives the magnetic scale reader, and the magnetic scale reader measures the moving distance of the support assembly through the magnetic scale.

[0020] In which, the linear motor module also includes a dustproof part and a drag chain. The dustproof part is arranged on the side of the base away from the stator assembly. The dustproof part is used to protect the linear motor module. The drag chain is arranged on one side of the base and is located on the side of the magnetic scale away from the base. The drag chain is connected to the support assembly.

[0021] The beneficial effects of the present application are as follows: the linear motor module provided by the present application includes a base, a stator assembly, a sliding assembly, a support assembly, multiple mover assemblies, and multiple magnets, wherein the magnets are arranged on the side of the mover assembly close to the stator assembly. When the multiple magnets interact with the stator assembly, the multiple mover assemblies and the support assembly move linearly on the base via the sliding assembly. By providing multiple magnets, and arranging the magnets on the side of the mover assembly close to the stator assembly, the present application optimizes the layout and quantity of the magnets, reduces dependence on permanent magnet materials, and reduces the cost of the linear motor module. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them:

[0023] Figure 1 This is a top view of an embodiment of a linear motor module provided by the present application;

[0024] Figure 2 yes Figure 1 A structural diagram of an embodiment of a fixing member;

[0025] Figure 3 yes Figure 1 A schematic structural diagram of another embodiment of the fixing member;

[0026] Figure 4 This is a structural schematic diagram of an embodiment of a plurality of mover assemblies and stator assemblies provided by the present application;

[0027] Figure 5 1 is a structural schematic diagram of another embodiment of multiple mover assemblies and stator assemblies provided by the present application;

[0028] Figure 6 This is a structural diagram of an embodiment of a mover assembly provided by the present application;

[0029] Figure 7 1 is a schematic diagram of an embodiment of a phase sequence arrangement of multiple mover assemblies provided by the present application;

[0030] Figure 8is a schematic diagram of another embodiment of the phase sequence arrangement of multiple mover assemblies provided by the present application;

[0031] Figure 9 This is a bottom view of an embodiment of a linear motor module provided by the present application. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0035] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0037] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0038] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0039] In the description of the embodiments of the present application, unless otherwise clearly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; they can refer to mechanical connections or electrical connections; they can refer to connections between components or indirect connections through an intermediate medium; they can refer to internal connections between two components or interactions between two components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0040] Existing linear motor modules typically use permanent magnets to cover the entire travel of the magnetic track. This design method is highly dependent on the permanent magnet material and the linear motor module is expensive.

[0041] This application provides a linear motor module, see Figure 1 and Figure 6 As shown, Figure 1 This is a top view of an embodiment of a linear motor module provided by the present application; Figure 6 1 is a schematic structural diagram of an embodiment of a mover assembly provided by the present application. The linear motor module 1 of this embodiment includes a base 10, a stator assembly 20, a sliding assembly 30, a support assembly 40, a plurality of mover assemblies 50 and a plurality of magnets 60.

[0042] The base 10 refers to the fixed part of the linear motor module 1 , which provides support and an installation platform for the entire linear motor module 1 .

[0043] The stator assembly 20 is disposed on the base 10. Optionally, the stator assembly 20 is fixed on the base.

[0044] The stator assembly 20 refers to the stationary part of the linear motor, and is used to fix the rotor, generate a magnetic field, and convert electrical energy into mechanical energy.

[0045] Optionally, the stator assembly 20 generally includes an iron core and coils that generate a magnetic field when the coils are energized.

[0046] The sliding assembly 30 is disposed on the base 10 along a length direction of the base 10 and is located on two opposite sides of the stator assembly 20 .

[0047] The sliding assembly 30 is a key component for achieving linear motion in the linear motor module 1 .

[0048] The sliding assembly 30 includes but is not limited to ball guides, sliding guides, linear bearings, pneumatic guides, etc.

[0049] Optionally, the sliding assembly 30 may move linearly along the length direction of the base 10 .

[0050] The support assembly 40 is disposed above the stator assembly 20 and connected to the sliding assembly 30 .

[0051] The support assembly 40 refers to a part or device used to support or fix an object.

[0052] Optionally, the support assembly 40 is a support plate. In other embodiments, the support assembly 40 is a support block or a support frame.

[0053] The support assembly 40 is connected to the sliding assembly 30 , and the support assembly 40 can move linearly along the length direction of the base 10 through the sliding assembly 30 .

[0054] The connection methods between the support assembly 40 and the sliding assembly 30 include but are not limited to fixed connection, pin connection, bolt connection, welding connection, elastic connection, etc.

[0055] The plurality of mover assemblies 50 are connected to the support assembly 40 and are located between the support assembly 40 and the stator assembly 20 .

[0056] The mover assembly 50 refers to the part that performs reciprocating linear motion during operation of the linear motor.

[0057] The plurality of mover assemblies 50 are located between the support assembly 40 and the stator assembly 20 , that is, the plurality of mover assemblies 50 are located above the stator assembly 20 and below the support assembly 40 . Optionally, the plurality of mover assemblies 50 are located directly above the stator assembly 20 .

[0058] The plurality of movable subassemblies 50 are connected to the support assembly 40, and the plurality of movable subassemblies 50 and the support assembly 40 can be linearly moved along the length direction of the base 10 via the sliding assembly 30. The connection methods of the plurality of movable subassemblies 50 and the support assembly 40 include, but are not limited to, fixed connection, pin connection, bolt connection, welding connection, elastic connection, etc.

[0059] The magnetic steel 60 is arranged on a side of the movable assembly 50 close to the stator assembly 20 . When the multiple magnetic steels 60 interact with the stator assembly 20 , the multiple movable assembly 50 and the support assembly 40 move linearly on the base 10 through the sliding assembly 30 .

[0060] Magnetic steel 60 refers to Alnico, a composite of several strong, hard metals, such as iron, aluminum, nickel, and cobalt, and sometimes copper, niobium, and tantalum. Magnetic steel 60 can be used to make ultra-hard permanent magnets. This special alloy possesses strong magnetic properties.

[0061] Optionally, after the stator assembly 20 is energized to generate a magnetic field, the magnet 60 located above the stator assembly 20 interacts with the magnetic field generated by the stator assembly 20 to generate a magnetic force, which drives the mover assembly 50 to perform linear motion.

[0062] Specifically, when the stator assembly 20 is energized, it generates a magnetic field. The multiple magnets 60 interact with the magnetic field generated by the stator assembly 20 to generate a magnetic force, also known as electromagnetic interaction. This magnetic force propels the multiple mover assemblies 50 and the support assembly 40 to move linearly along the length of the base via the sliding assembly 30. Specifically, when the multiple magnets 60 interact with the stator assembly 20, the multiple mover assemblies 50 and the support assembly 40 move linearly on the base 10 via the sliding assembly 30.

[0063] In this embodiment, the magnetic steel 60 is disposed on the side of the movable assembly 50 close to the stator assembly 20. When the multiple magnetic steels 60 interact with the stator assembly 20, the multiple movable assembly 50 and the support assembly 40 move linearly on the base 10 via the sliding assembly 30. By providing multiple magnetic steels 60 and arranging the magnetic steels 60 on the side of the movable assembly 50 close to the stator assembly 20, the layout and number of the magnetic steels 60 are optimized, the dependence on permanent magnet materials is reduced, and the cost of the linear motor module 1 is reduced.

[0064] According to some embodiments of the present application, the support assembly 40 includes a support member 41 and a fixing member 42, the fixing member 42 is arranged above the multiple movable sub-assemblies 50, the support member 41 is arranged above the fixing member 42, the support member 41 and the sliding assembly 30 are respectively connected to the fixing member 42, and the fixing member 42 is used to position the multiple movable sub-assemblies 50.

[0065] The support member 41 is a component used to support or fix an object. Optionally, the support member 41 is a support plate.

[0066] The fixing member 42 is a component used to fix and position the plurality of movable subassemblies 50. The fixing member 42 is disposed above the plurality of movable subassemblies 50 to fix the plurality of movable subassemblies 50 and position them above the stator assembly 20.

[0067] Optionally, the fixing member 42 is a fixing plate. In other embodiments, the fixing member 42 is a fixing block.

[0068] Optionally, a plurality of mounting holes (not shown) are provided on the fixing member 42 , the supporting member 41 is provided above the fixing member 42 , and the supporting member 41 and the sliding assembly 30 are respectively connected to the fixing member 42 through the mounting holes.

[0069] The fixing member 42 of this embodiment is disposed above the plurality of movable subassemblies 50 , and can effectively position the movable subassemblies 50 , thereby ensuring their stability and accuracy during movement and reducing movement errors.

[0070] According to some embodiments of this application, see Figure 2 As shown, Figure 2 yes Figure 1 Schematic diagram of the structure of an embodiment of a fixing member. The fixing member 42 of this embodiment includes a first fixing body 421 and a plurality of limiting portions 422. The plurality of limiting portions 422 are spaced apart and arranged on a side of the first fixing body 421 close to the stator assembly 20. Any movable assembly 50 is positioned by two adjacent limiting portions 422, so that the fixing member 42 can position the plurality of movable assemblies 50.

[0071] The first fixing body 421 refers to a component of the fixing member 42 that is used to provide stable support and fixed connection.

[0072] The limiting portion 422 refers to a component or structure used to limit or specify the position of the mover assembly 50. Optionally, the limiting portion 422 is a protruding structure. In other embodiments, the limiting portion 422 is a groove structure.

[0073] Alternatively, as Figure 2 As shown, the fixing member 42 includes a first fixing body 421 and two limiting portions 422. In other embodiments, the fixing member 42 includes a first fixing body 421 and a plurality of limiting portions 422, wherein the plurality can be three, four, five, etc.

[0074] The plurality of limiting portions 422 are spaced apart and arranged on a side of the first fixing body 421 close to the stator assembly 20 , so that the fixing member 42 fixes the plurality of movable subassemblies 50 above the stator assembly 20 through the limiting portions 422 .

[0075] Optionally, the interval between two adjacent limiting portions 422 is the same as the length or width of any one movable subassembly 50 , so that any one movable subassembly 50 can be positioned by the two adjacent limiting portions 422 .

[0076] Optionally, the fixing member 42 positions the multiple movable sub-assemblies 50 through the multiple limiting portions 422 , and at this time, the multiple movable sub-assemblies 50 are connected in series.

[0077] In this embodiment, a plurality of limiting portions 422 are provided on the first fixed body 421, and the plurality of movable sub-assemblies 50 are positioned by the plurality of limiting portions 422. The design of the plurality of limiting portions 422 allows the movable sub-assemblies 50 to be flexibly assembled on the fixing member 42, which is convenient for installation and maintenance; the design of the limiting portions 422 enhances the structural stability of the fixing member 42, so that the plurality of movable sub-assemblies 50 remain stable during operation, reducing displacement caused by vibration or impact.

[0078] According to some embodiments of this application, see Figure 3 As shown, Figure 3 yes Figure 1 Schematic diagram of the structure of another embodiment of the fixing member. The fixing member 42 of this embodiment includes a second fixing body 423, a first limiting portion 424, and a second limiting portion 425. The first limiting portion 424 and the second limiting portion 425 are arranged in parallel on a side of the second fixing body 423 close to the stator assembly 20. The side of the first limiting portion 424 close to the second limiting portion 425 is shaped like a first step, and the first step gradually moves away from the second limiting portion 425 along the length direction of the first limiting portion 424. The side of the second limiting portion 425 close to the first limiting portion 424 is shaped like a second step, and the second step gradually moves closer to the first limiting portion 424 along the length direction of the second limiting portion 425. The fixing member 42 positions the multiple mover assemblies 50 through the first step of the first limiting portion 424 and the second step of the second limiting portion 425.

[0079] The second fixing body 423 refers to a component in the fixing member 42 for providing stable support and fixed connection.

[0080] The first limiting portion 424 and the second limiting portion 425 are components or structures used to limit or define the position of the mover assembly 50. Optionally, the first limiting portion 424 and the second limiting portion 425 are both protrusion structures. In other embodiments, the first limiting portion 424 and the second limiting portion 425 are groove structures.

[0081] Optionally, the first limiting portion 424 and the second limiting portion 425 are arranged in parallel on the side of the second fixed body 423 close to the stator assembly 20, and the first limiting portion 424 and the second limiting portion 425 are arranged at intervals, and the multiple movable sub-assemblies 50 are located in the interval between the first limiting portion 424 and the second limiting portion 425, and the fixing member 42 positions the multiple movable sub-assemblies 50 through the first limiting portion 424 and the second limiting portion 425.

[0082] The shape of the side of the first limiting portion 424 close to the second limiting portion 425 is a first step, and the first step gradually moves away from the second limiting portion 425 along the length direction of the first limiting portion 424. Figure 3 As shown, the first step shape is similar to a descending staircase.

[0083] The second limiting portion 425 is shaped like a second step on one side thereof close to the first limiting portion 424. The second step gradually approaches the first limiting portion 424 along the length direction of the second limiting portion 425. Figure 3 As shown, the second step shape is similar to the shape of a rising stair.

[0084] Optionally, the first stepped shape and the second stepped shape are arranged correspondingly, and both the first stepped shape and the second stepped shape are provided with steps corresponding to the number of the movable sub-assemblies 50 , that is, the first stepped shape and the second stepped shape can be arranged according to the number of the movable sub-assemblies 50 .

[0085] Optionally, the fixing member 42 positions the plurality of movable sub-assemblies 50 through the first limiting portion 424 and the second limiting portion 425 . In this case, the plurality of movable sub-assemblies 50 are connected in parallel.

[0086] In this embodiment, the fixing member 42 uses the first step shape of the first limiting portion 424 and the second step shape of the second limiting portion 425 to position multiple movable components 50. This stepped design provides a precise positioning reference to ensure the accuracy and consistency of the movable components 50 during positioning; and due to the progressive nature of the stepped design, slight errors in the positioning process of the movable components 50 can be effectively compensated, reducing the cumulative errors in the positioning process of the movable components 50 and improving the positioning accuracy of the movable components 50.

[0087] According to some embodiments of this application, see Figure 4-Figure 5 As shown, Figure 4 This is a structural schematic diagram of an embodiment of a plurality of mover assemblies and stator assemblies provided by the present application; Figure 5 1 is a schematic structural diagram of another embodiment of a plurality of mover assemblies and a stator assembly provided in the present application. In this embodiment, the stator assembly 20 is tooth-shaped and is disposed on the base 10.

[0088] Optionally, the stator assembly 20 is disposed on the base 10 along a length direction of the base 10 , and a side of the stator assembly 20 away from the base 10 is in a tooth shape.

[0089] Optionally, the teeth of the stator assembly 20 are arc-shaped, such as Figure 4 and Figure 5 In other embodiments, the tooth shape of the stator assembly 20 can be a rectangle, a trapezoid, or other shapes to obtain better motor performance.

[0090] The design of the tooth-shaped stator assembly 20 in this embodiment helps to optimize the magnetic circuit, making the magnetic flux more concentrated and reducing the leakage of magnetic lines of force, thereby improving the efficiency and performance of the motor.

[0091] According to some embodiments of the present application, the sliding assembly 30 includes two slide rails 31 and two sliders 32, each slider 32 is arranged on the corresponding slide rail 31, the two slide rails 31 are arranged in parallel on the base 10, and are respectively located on both sides of the stator assembly 20, and the fixing member 42 is arranged on the two sliders 32.

[0092] The slide rail 31 is a mechanical engineering component used to support and guide the support assembly 40 to perform reciprocating linear motion in a given direction, and is also called a linear guide rail, a linear guide rail or a linear slide rail.

[0093] The slider 32 refers to a mechanical component that realizes linear reciprocating motion on the slide rail 31 .

[0094] Optionally, the slide rail 31 and the slider 32 form a linear guide system, wherein the slide rail 31 serves as a fixed element and the slider 32 serves as a moving element.

[0095] Optionally, one slider 32 is provided on one slide rail 31 , that is, each slider 32 is provided on the corresponding slide rail 31 .

[0096] like Figure 1 As shown, two slide rails 31 are arranged on the base 10 in parallel along the length direction of the base 10, and the two slide rails 31 are respectively located on both sides of the stator assembly 20, each slider 32 is arranged on the corresponding slide rail 31, and the two ends of the fixing member 42 are respectively connected to the two sliders 32.

[0097] The connection methods between the fixing member 42 and the two sliders 32 include, but are not limited to, fixed connection, pin connection, bolt connection, welding connection, etc.

[0098] According to some embodiments of the present application, when the plurality of magnets 60 interact with the stator assembly 20 , the fixing member 42 and the supporting member 41 move on the slide rail 31 through the slider 32 , and the fixing member 42 and the supporting member 41 move along the length direction of the base 10 .

[0099] Optionally, after the stator assembly 20 is energized to generate a magnetic field, the multiple magnets 60 located above the stator assembly 20 interact with the magnetic field generated by the stator assembly 20 to generate magnetic force, which drives the multiple mover assemblies 50 to move; the multiple mover assemblies 50 drive the fixing member 42 and the supporting member 41, and move on the slide rail 31 through the slider 32. At this time, the fixing member 42 and the supporting member 41 move along the length direction of the base 10, that is, the fixing member 42 and the supporting member 41 move in a linear direction.

[0100] Optionally, the support member 41 is provided with a plurality of mounting holes (not marked in the figure), and objects can be loaded onto the support member 41 through the mounting holes, and the objects on the support member 41 can be moved when the support member 41 moves linearly.

[0101] In this embodiment, the fixing member 42 and the supporting member 41 are moved on the slide rail 31 through the slider 32, ensuring the precise linear movement of the fixing member 42 and the supporting member 41 along the length direction of the base 10; the interaction between the multiple magnets 60 and the stator assembly 20 provides a strong magnetic force. This design optimizes the energy conversion efficiency of the motor and improves the output performance of the motor.

[0102] According to some embodiments of this application, see Figure 6 As shown, the mover assembly 50 of this embodiment includes a mover core 51 and a winding 52. One end of the mover core 51 is connected to the fixing member 42, and the other end of the mover core 51 is tooth-shaped. The magnet 60 is arranged on the other end of the mover core 51, and the winding 52 is wound in the tooth groove of the other end of the mover core 51.

[0103] The mover core 51 is the core component of the mover assembly 50 and is usually made of a mold. The mover core 51 is made of magnetic conductive materials, including but not limited to silicon steel sheets, ferrite, and pure iron.

[0104] The winding 52 is a ring-shaped structure made of wound wire, and is commonly used in devices such as motors, inductors, and electric motors. Optionally, in the mover assembly 50, the winding 52 is wound around the mover core 51 to generate current in the magnetic field of the motor, thereby generating torque or linear motion.

[0105] One end of the mover core 51 is connected to the fixing member 42 , that is, one end of the mover core 51 is fixed or positioned on the fixing member 42 , so that the fixing member 42 positions the mover assembly 50 .

[0106] The other end of the mover core 51 is in the shape of a tooth, and the magnetic steel 60 is arranged on the other end of the mover core 51. Optionally, one magnetic steel 60 includes an S pole and an N pole, and one magnetic steel 60 is arranged on the tooth of the other end of the mover core 51. For example, the tooth shape of the other end of the mover core 51 includes three teeth, and correspondingly there are three magnetic steels 60 arranged on the teeth, such as Figure 6 In other embodiments, the tooth shape of the other end of the mover core 51 can be two teeth, four teeth, five teeth, etc.

[0107] The winding 52 is wound around the tooth slots at the other end of the mover core 51. That is, the winding 52 is wound around the teeth at the other end of the mover core 51 and is located in the tooth slots. Optionally, the other end of the mover core 51 further includes two end teeth (not shown), which are located on opposite sides of the mover core 51. The winding 52 is not provided on these two end teeth.

[0108] Optionally, the tooth shape of the other end of the mover core 51 includes but is not limited to different tooth shapes such as open teeth, closed teeth, and semi-closed teeth.

[0109] See Figure 7-Figure 9 As shown, Figure 7 1 is a schematic diagram of an embodiment of a phase sequence arrangement of multiple mover assemblies provided by the present application; Figure 8 is a schematic diagram of another embodiment of the phase sequence arrangement of multiple mover assemblies provided by the present application; Figure 9 Schematic diagram of an embodiment of the phase sequence deviation of multiple movable components provided by the present application.

[0110] Optionally, there are certain requirements for the phase sequence of the windings 52 in each slot of the mover core 51 of a mover assembly 50. For example, there are windings 52 with three phase sequences of A, B, and C on the mover core 51.

[0111] like Figure 4 and Figure 7 As shown, Figure 7 The phase sequence of the windings 52 when three mover assemblies 50 are connected in parallel is ABC, BAC, and CBA. Taking phase A as an example, the phase A of the last mover core 51 moves back one slot, and the back electromotive force of each phase is more balanced.

[0112] like Figure 5 and Figure 8 As shown, Figure 8 This represents the phase sequence of the windings 52 when three mover assemblies 50 are connected in series. The phase sequence on the mover cores 51 of the three mover assemblies 50 is ABC. Taking phase A as an example, the center of phase A of each mover core 51 should correspond to the center of a tooth on the stator assembly 20. To minimize thrust fluctuation and positioning force, the position of the phase A center of the mover core 51 and the center of a tooth on the stator assembly 20 may deviate to a certain extent.

[0113] Optionally, the first stepped shape of the first limiting portion 424 and the second stepped shape of the second limiting portion 425 in the fixing member 42 can be designed according to the phase sequence arrangement of the windings 52 when the mover assemblies 50 are connected in series.

[0114] By combining multiple mover components 50 in series or parallel, also called modular combination, linear motors with different thrusts can be derived through modular combination, and then the motor movers can be produced modularly, which reduces the cost of punching molds for different thrust motors in the early stage, unifies the materials of different thrust linear motors, and facilitates procurement and management; greatly reduces the production and processing costs of linear motors, facilitates production, and improves the efficiency of motor production.

[0115] This embodiment optimizes the layout and quantity of the magnets 60 by arranging a magnet 60 at the other end of the mover core 51 , and the magnet 60 is located above the stator assembly 20 , thereby reducing dependence on permanent magnetic materials and reducing the cost of the linear motor module 1 .

[0116] According to some embodiments of the present application, the linear motor module 1 also includes a magnetic scale 71 and a magnetic scale reader 72. The magnetic scale 71 is located on one side of the base 10, and the magnetic scale reader 72 is connected to the support assembly 40. When the multiple magnets 60 interact with the stator assembly 20, the support assembly 40 drives the magnetic scale reader 72, and the magnetic scale reader 72 measures the moving distance of the support assembly 40 through the magnetic scale 71.

[0117] The magnetic scale 71 is a sensor that uses electromagnetic properties and the principle of magnetic recording to measure displacement. The magnetic scale reader 72 is a sensor that generates signal output by sensing changes in the magnetic field and is mainly used in encoders, sensors, computer disks and other fields.

[0118] Optionally, the magnetic scale 71 and the magnetic scale reader 72 are used to measure the moving distance of the support assembly 40 when it performs linear motion on the base 10.

[0119] Optionally, the magnetic scale 71 is located on one side of the base 10, and when the multiple magnets 60 interact with the stator assembly 20, the support assembly 40 moves linearly along the length direction of the base 10; the magnetic scale reader 72 is connected to the support assembly 40, and when the support assembly 40 moves, the support assembly 40 drives the magnetic scale reader 72 to move along the magnetic scale 71, and the magnetic scale reader 72 reads the changes in the magnetic field on the magnetic scale 71 and converts these changes into electrical signals, thereby accurately measuring the moving distance of the support assembly 40.

[0120] In this embodiment, by using the magnetic scale 71 and the magnetic scale reader 72 in conjunction with each other, the motion accuracy of the support assembly 40 in the linear motor module 1 can be precisely controlled and monitored, which is particularly important for precision positioning and automated control applications.

[0121] According to some embodiments of this application, see Figure 1 and Figure 9 As shown, Figure 9 This is a bottom view of an embodiment of a linear motor module provided herein. The linear motor module 1 of this embodiment further includes a dust guard 80 and a drag chain 90. The dust guard 80 is disposed on the side of the base 10 away from the stator assembly 20 to protect the linear motor module 1. The drag chain 90 is disposed on one side of the base 10, on the side of the magnetic scale 71 away from the base 10, and is connected to the support assembly 40.

[0122] The dustproof member 80 is a device for preventing the linear motor module 1 from being invaded by foreign matter such as dust and particles.

[0123] Optionally, the dustproof member 80 is a dustproof plate. In other embodiments, the dustproof member 80 can be a dustproof cover.

[0124] The energy chain 90 is a mechanical device used to protect flexible piping systems such as cables, wires, hoses or pipes.

[0125] The setting of the dustproof part 80 in this embodiment effectively prevents dust and particulate matter from invading key components of the linear motor module 1, such as the stator assembly 20, thereby protecting the linear motor module 1 from pollution and extending the life of the equipment; the setting of the drag chain 90 provides orderly management and protection for cables, wires or hoses, making the cable layout of the linear motor module 1 more tidy and reducing the risk of cable damage.

[0126] In summary, the magnets 60 are disposed on the side of the mover assembly 50 close to the stator assembly 20. When the multiple magnets 60 interact with the stator assembly 20, the multiple mover assemblies 50 and the support assembly 40 move linearly on the base 10 via the sliding assembly 30. By providing multiple magnets 60, and positioning them on the side of the mover assembly 50 close to the stator assembly 20, the layout and number of magnets 60 are optimized, reducing dependence on permanent magnet materials and lowering the cost of the linear motor module 1. Furthermore, the combination of multiple mover assemblies 50 significantly reduces the production and processing costs of the linear motor, facilitating production and improving motor production efficiency.

[0127] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A linear motor module, characterized in that: include: base; a stator assembly, disposed on the base; a sliding assembly, disposed on the base along a length direction of the base and located on opposite sides of the stator assembly; A support assembly is provided above the stator assembly and connected to the sliding assembly; a plurality of mover assemblies connected to the support assembly and located between the support assembly and the stator assembly; A plurality of magnetic steels are arranged on a side of the movable assembly close to the stator assembly. When the plurality of magnetic steels interact with the stator assembly, the plurality of movable assemblies and the supporting assembly move linearly on the base through the sliding assembly.

2. The linear motor module according to claim 1, characterized in that: The supporting assembly includes a supporting member and a fixing member, the fixing member is arranged above the multiple movable sub-assemblies, the supporting member is arranged above the fixing member, the supporting member and the sliding assembly are respectively connected to the fixing member, and the fixing member is used to position the multiple movable sub-assemblies.

3. The linear motor module according to claim 2, characterized in that: The fixing member includes a first fixing body and a plurality of limiting parts, wherein the plurality of limiting parts are spaced apart and arranged on a side of the first fixing body close to the stator assembly. Any one of the movable subassemblies is positioned by two adjacent limiting parts, so that the fixing member can position the plurality of movable subassemblies.

4. The linear motor module according to claim 2, characterized in that: The fixing member includes a second fixing body, a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are arranged in parallel on a side of the second fixing body close to the stator assembly, the shape of the side of the first limiting portion close to the second limiting portion is a first step, the first step gradually moves away from the second limiting portion along the length direction of the first limiting portion, the shape of the side of the second limiting portion close to the first limiting portion is a second step, the second step gradually approaches the first limiting portion along the length direction of the second limiting portion, and the fixing member positions the multiple movable sub-assemblies through the first step of the first limiting portion and the second step of the second limiting portion.

5. The linear motor module according to claim 2, characterized in that: The stator assembly is in a tooth shape and is arranged on the base.

6. The linear motor module according to claim 5, characterized in that: The sliding assembly includes two slide rails and two sliders, each slider is arranged on the corresponding slide rail, the two slide rails are arranged in parallel on the base and are respectively located on both sides of the stator assembly, and the fixing member is arranged on the two sliders.

7. The linear motor module according to claim 6, characterized in that: When the plurality of magnetic steels interact with the stator assembly, the fixing member and the supporting member move on the slide rail via the slider, and the fixing member and the supporting member move along the length direction of the base.

8. The linear motor module according to claim 2, characterized in that: The mover assembly includes a mover core and a winding, one end of the mover core is connected to the fixing member, the other end of the mover core is tooth-shaped, and the magnetic steel is arranged on the other end of the mover core, and the winding is wound in the tooth slot of the other end of the mover core.

9. The linear motor module according to claim 1, characterized in that: The linear motor module also includes a magnetic scale and a magnetic scale reader. The magnetic scale is located on one side of the base, and the magnetic scale reader is connected to the support assembly. When the multiple magnetic steels interact with the stator assembly, the support assembly drives the magnetic scale reader, and the magnetic scale reader measures the moving distance of the support assembly through the magnetic scale.

10. The linear motor module according to claim 9, characterized in that: The linear motor module also includes a dustproof part and a drag chain. The dustproof part is arranged on the side of the base away from the stator assembly. The dustproof part is used to protect the linear motor module. The drag chain is arranged on one side of the base and is located on the side of the magnetic scale away from the base. The drag chain is connected to the support assembly.

Images