Stator module and magnetic drive conveying device

Abstract

The utility model provides a stator module and a magnetic drive conveying device, and belongs to the technical field of magnetic drive conveying. The stator module comprises a base and an iron core located in the base, the base comprises an installation face used for installing a guide rail, the guide rail corresponding to the installation face is provided with a preset first extension path, at least one end face, on the first extension path, of the base is provided with a magnetic conduction piece corresponding to the iron core, and the magnetic permeability of the magnetic conduction piece is larger than that of air. The magnetic conductive member is used for conducting a magnetic field between two adjacent stator modules. By arranging the magnetic conductive pieces on the end faces of the bases, the situation that a magnetic field is weakened when penetrating through a gap between the bases of the two adjacent stator modules is avoided, or the weakening degree of the magnetic field when penetrating through the gap is weakened, so that fluctuation generated by thrust borne by the mover module when penetrating through the gap is eliminated or weakened as much as possible, and the reliability of the mover module is improved. And the mover module can move as stably as possible.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic drive conveying technology, specifically relating to a stator module and a magnetic drive conveying device. Background Technology

[0002] Magnetic drive conveyors utilize the driving force of a magnetic field on a magnetic object. By controlling the distribution and intensity of the magnetic field, precise positioning and transport of the object are achieved. They mainly include a stator module, a mover module, a guide rail system, a control system, and a power supply system.

[0003] In related technologies, stator modules can be spliced ​​together according to the preset running path of the moving sub-module. However, in actual production, considering the processing and assembly processes, there will be gaps between two adjacent stator modules after splicing. When the moving sub-module passes through this gap, the thrust it receives will fluctuate, affecting the positioning accuracy and operational stability of the conveyor. Utility Model Content

[0004] The purpose of this application is to provide a stator module and a magnetic drive conveying device to solve the above-mentioned technical problems existing in the prior art.

[0005] This application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide a stator module applied to a magnetic drive conveying device, including a base and an iron core located inside the base. The base includes a mounting surface for mounting a guide rail, and the guide rail corresponding to the mounting surface has a preset first extension path. At least one end face of the base on the first extension path is provided with a magnetic conductive element corresponding to the iron core. The magnetic permeability of the magnetic conductive element is greater than the magnetic permeability of air, and the magnetic conductive element is used to conduct a magnetic field between two adjacent stator modules.

[0007] Secondly, embodiments of this application provide a magnetic drive conveying device, including the stator module provided in the first aspect embodiment.

[0008] The technical solution provided in this application can achieve the following beneficial effects:

[0009] In this application, the first extension path is a preset extension path of the guide rail corresponding to the base. A magnetic conductor is provided on the end face of the base on the first extension path. When multiple stator modules are spliced ​​and assembled along the first extension path, the magnetic conductor is located between two adjacent bases and corresponds to the iron core. The magnetic permeability of the magnetic conductor is greater than that of air, which can conduct magnetic fields between two adjacent stator modules. This avoids the magnetic field being weakened when passing through the gap between the bases of two adjacent stator modules, or reduces the degree of weakening when the magnetic field passes through the gap. This minimizes or reduces the fluctuations caused by the thrust when the moving module passes through the gap, making the moving module move as smoothly as possible. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the stator module structure provided in some embodiments of this application. Figure 1 ;

[0012] Figure 2 This is a schematic diagram illustrating the cooperation between the stator module and the guide rail provided in some embodiments of this application. Figure 1 ;

[0013] Figure 3 This is a schematic diagram illustrating the cooperation between the stator module and the guide rail provided in some embodiments of this application. Figure 2 ;

[0014] Figure 4 This is a schematic diagram of the disassembly of the stator module provided in some embodiments of this application. Figure 1 ;

[0015] Figure 5 These are schematic diagrams of the iron core structure provided in some embodiments of this application;

[0016] Figure 6 This is a schematic diagram of the cooperation between two adjacent stator modules provided in some embodiments of this application;

[0017] Figure 7 This is a cross-sectional view of the mating structure of two adjacent stator modules provided in some embodiments of this application;

[0018] Figure 8 This is a schematic diagram of the stator module structure provided in some embodiments of this application. Figure 2 ;

[0019] Figure 9 This is a schematic diagram illustrating the cooperation between the stator module and the guide rail provided in some embodiments of this application. Figure 3 ;

[0020] Figure 10 This is a schematic diagram of the disassembly of the stator module provided in some embodiments of this application. Figure 2 ;

[0021] Figure 11 This is a schematic diagram of the overall structure of the magnetic drive conveying device provided in some embodiments of this application.

[0022] In the diagram: 10-stator module, 100-base, 110-mounting surface, 120-cover plate, 200-iron core, 210-connecting part, 220-tooth part, 230-groove, 300-magnetic conductor, 400-coil, 20-guide rail, 30-mounting bracket, 40-moving module. Detailed Implementation

[0023] The following description provides many different embodiments or examples for implementing various features of the present invention. The elements and arrangements described in the specific examples below are only for concise expression of the present invention and are merely examples, not intended to limit the present invention.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more.

[0026] This application provides a stator module for use in a magnetic drive conveying device. In actual use, multiple stator modules 10 are spliced ​​together along a preset moving path of a moving module 40. A guide rail 20 is installed on the spliced ​​stator modules 10, and the moving module 40 moves in coordination with the guide rail 20 to convey materials.

[0027] refer to Figure 4 and Figure 10 As shown, the stator module 10 provided in this embodiment includes a base 100 and an iron core 200 located inside the base 100. The base 100 is the mounting body of the stator module 10, the iron core 200 is located inside the base 100, and the exterior of the base 100 can maintain a good appearance, which facilitates the standardized production of the stator module 10 and the splicing of multiple stator modules 10.

[0028] The base 100 includes a mounting surface 110 for mounting a guide rail 20, which is mounted on the mounting surface 110 during the assembly of the magnetic drive conveyor. The guide rail 20 has an extension path, and the guide rail 20 corresponding to the mounting surface 110 has a preset first extension path, as shown in the reference. Figure 1 , Figure 8 and Figure 10 As shown. The guide rail 20 corresponding to the mounting surface 110 refers to the guide rail 20 mounted on the mounting surface 110. Multiple stator modules 10 are spliced ​​and assembled along the first extension path to adapt to the shape of the guide rail 20. The fit between the stator module 10 and the guide rail 20 can be found in [reference]. Figure 2 , Figure 3 as well as Figure 9 As shown.

[0029] Because assembly gaps need to be reserved, when multiple stator modules 10 are spliced ​​together along the first extension path, there is usually a certain gap between the bases 100 of two adjacent stator modules 10, and the end faces of the bases 100 on the first extension path do not directly contact each other. The gap between two adjacent bases 100 is filled with air. Air has low magnetic permeability and very weak magnetic permeability, about one ten-thousandth that of the iron core 200. When the magnetic field loop passes through this gap, the magnetic field is weakened, causing fluctuations in the thrust on the moving module 40, and resulting in unstable movement of the moving module 40.

[0030] In the embodiments provided in this application, at least one end face of the base 100 on the first extension path is provided with a magnetic conductive element 300 corresponding to the iron core 200, which can be referred to Figures 1 to 3 , Figures 8 to 10 As shown. When multiple stator modules 10 are spliced, the magnetic conductor 300 is located between two adjacent bases 100. The magnetic permeability of the magnetic conductor 300 is greater than that of air. The magnetic conductor 300 is used to conduct the magnetic field between two adjacent stator modules 10.

[0031] When the stator module 10 is in operation, its internal coil 400 is wound on the iron core 200. When the coil 400 is energized, it generates a magnetic field. The iron core 200 provides a closed magnetic circuit for the coil 400, allowing the magnetic field generated by the coil 400 to be effectively conducted in the iron core 200, forming a complete magnetic circuit. This combination can improve the strength and uniformity of the magnetic field, thereby improving the efficiency and performance of the motor.

[0032] The position of the magnetic conductor 300 on the end face of the base 100 cannot be arbitrarily set; it must correspond to the iron core 200. The magnetic conductor 300 needs to be located on the corresponding magnetic field loop of the iron core 200 to conduct the magnetic field between the two stator modules 10. The permeability of the magnetic conductor 300 is greater than that of air, so that the magnetic field is not weakened when passing through the magnetic conductor 300, or the degree of weakening of the magnetic field is reduced.

[0033] When the moving module 40 moves along the guide rail 20, the thrust it experiences is related to the magnetic field strength generated by the stator module 10. Therefore, a magnetic guide 300 is provided on the end face of the base 100. When the magnetic drive conveyor is running, if the moving module 40 passes through the gap between two adjacent bases 100, the magnetic field at the gap fluctuates little compared to the magnetic field at the base 100. Consequently, the thrust experienced by the moving module 40 at the gap also fluctuates little compared to the thrust experienced at the base 100. This allows the moving module 40 to move through the gap as smoothly as possible, with little or no impact on the positioning accuracy and operational stability of the magnetic drive conveyor. Simultaneously, it also reduces the noise generated by the movement of the moving module 40.

[0034] A schematic diagram of the structure after two adjacent stator modules 10 are spliced ​​together can be referenced. Figure 6 and Figure 7 As shown, when the moving module 40 and the stator module 10 cooperate with each other, the magnetic field conduction path can be referenced. Figure 7 As shown.

[0035] In existing technologies, the problems of insufficient delivery positioning accuracy and poor operational stability are usually solved by modifying the control algorithm, but this increases the difficulty of system development and debugging. In the embodiment provided in this application, a magnetic guide 300 is directly provided on the end face of the base 100 to increase the permeability between two adjacent bases 100, thereby avoiding the weakening of the magnetic field when passing through the gap between two adjacent bases 100, and ensuring that the thrust received by the moving submodule 40 is as stable as possible without fluctuation.

[0036] The magnetic permeability of the magnetic conductor 300 needs to be greater than that of air to reduce the weakening of the magnetic field as it passes through the gap. The magnetic conductor 300 is generally made of a magnetically permeable material, and its relative permeability is much greater than 1. Common magnetically permeable materials include iron, steel, and silicon steel. In some preferred embodiments, the magnetic conductor 300 can be made of the same material as the iron core 200.

[0037] In some embodiments, a magnetic conductor 300 may be provided on only one end face of the base 100. When the stator modules 10 are assembled, multiple stator modules 10 are spliced ​​to form a ring structure, and a magnetic conductor 300 conducts a magnetic field between any two adjacent bases 100. In some preferred embodiments, a magnetic conductor 300 may be provided on both end faces of the base 100.

[0038] The stator module 10 can be divided into a straight-section stator and a circular-arc stator. The straight-section stator and the circular-arc stator work together to form conveyor paths of different sizes and shapes. The only difference between the straight-section stator and the circular-arc stator is their external shape. (For reference, see the straight-section stator.) Figures 1 to 4As shown, in this stator module 10, the base 100 is approximately cuboid in shape, and its corresponding first extension path is a straight line, as referenced. Figures 1 to 3 The path is indicated by the dashed arrow. The circular arc segment of the stator can be referenced. Figures 8 to 10 As shown, in this stator module 10, the base 100 is curved, and the guide path of the corresponding guide rail 20 has an arc structure. The first extension path corresponding to the base 100 is a curve, which can be referred to as... Figures 8 to 10 The path indicated by the dashed arrow.

[0039] A position sensor receiving section is generally also mounted on the surface of the base 100, which is located on the same surface of the base 100 as the guide rail 20. The position sensor receiving section corresponds to the position sensor on the moving submodule 40 and works together to provide feedback on the position signal of the moving submodule 40.

[0040] In some embodiments of this application, reference is made to Figure 5 As shown, the iron core 200 includes a connecting portion 210 and a plurality of teeth 220 protruding from the surfaces of the opposing connecting portions 210. All teeth 220 are arranged along a first extension path, and a groove 230 for placing a coil 400 is formed between two adjacent teeth 220. The coil 400 is sleeved on the outside of the teeth 220.

[0041] The plane on which the end face of the connecting portion 210 is close to the magnetic conductor 300 is the first plane, and the projection of the magnetic conductor 300 along the first extension path on the first plane is the first projection. The first projection has an overlapping area with the end face of the connecting portion 210 close to the magnetic conductor 300.

[0042] In actual implementation, the iron core 200 is located inside the base 100, and both ends of the connecting portion 210 of the iron core 200 are tightly fitted against the inner wall of the base 100 to avoid air gaps that would affect the conduction of the magnetic field. When the coil 400 is energized, the magnetic field generated can be conducted along the path of the connecting portion 210. The magnetic field passes through the iron core 200, the base 100, and the magnetic conductor 300 in sequence, and the first projection overlaps with the end face of the connecting portion 210, providing a conduction path for the magnetic field.

[0043] In the same guide member, the distance between the connecting part 210 and the magnetic conductor 300 is very close, and the first extension path is almost equivalent to the normal direction of the end face of the connecting part 210. Whether in the straight segment stator or the arc segment stator, the difference in the first projection of the magnetic conductor 300 on the first end face is not significant.

[0044] The larger the overlap area between the first projection and the end face of the connecting portion 210, the more magnetic field passes through the magnetic conductor 300, and the weaker the attenuation of the magnetic field by the gap between two adjacent bases 100, allowing the magnetic field to be conducted more smoothly. In some preferred embodiments, the first projection covers the end face of the connecting portion 210 near the magnetic conductor 300, and the magnetic field conducted along the connecting portion 210 can, to a certain extent, pass entirely through the magnetic conductor 300 and be conducted smoothly.

[0045] In some embodiments, the cross-sectional dimensions of the magnetic conductor 300 can be exactly the same as the cross-sectional dimensions of the connecting portion 210, and the two are set to correspond exactly. In another embodiment, the magnetic conductor 300 can be set to be slightly larger. The larger size of the magnetic conductor 300 allows its corresponding first projection to completely cover the end of the connecting portion 210, and the installation accuracy requirements of the magnetic conductor 300 on the base 100 are not high, which can reduce the assembly difficulty of the stator module 10 during the assembly process and improve the assembly efficiency.

[0046] There are multiple mounting methods between the magnetic conductor 300 and the base 100. In some embodiments, the magnetic conductor 300 is embedded in the end face of the base 100. The end face of the base 100 is provided with a corresponding groove 230, which is used to position the installation position of the magnetic conductor 300. When assembling the magnetic conductor 300, it can be directly assembled according to the position of the groove 230 without additional positioning of the magnetic conductor 300, which can improve the assembly efficiency of the stator module 10.

[0047] In some specific embodiments, the magnetic conductor 300 is located in the groove 230 on the end face of the base 100. A portion of the base 100 is always spaced between the magnetic conductor 300 and the iron core 200, and the magnetic conductor 300 and the iron core 200 do not directly contact each other. The end face of the base 100 remains intact, preventing incomplete sealing of its interior. In other specific embodiments, the groove 230 on the end face of the base 100 extends through the base 100. After the magnetic conductor 300 is installed in the groove 230, it directly contacts the iron core 200, facilitating magnetic field conduction. However, gaps may easily appear around the magnetic conductor 300 and between it and the base 100, potentially affecting the distribution of the magnetic field within the base 100 and the installation stability of the magnetic conductor 300.

[0048] In other embodiments, the magnetic conductor 300 is detachably connected to the base 100. The magnetic conductor 300 can be replaced with one of appropriate size according to the actual gap between two adjacent bases 100, thereby ensuring that the magnetic conductor 300 is pressed against the two adjacent bases 100. Exemplarily, the detachable connection can be a reusable adhesive connection, or a snap-fit ​​or other easy-to-operate connection method.

[0049] When assembling a magnetic drive conveyor using stator modules 10, gaps may exist between adjacent stator modules 10. Since different stator modules 10 have varying manufacturing tolerances, the size of these gaps at different locations after assembly may also differ. A detachable connection is provided between the magnetic conductor 300 and the base 100. Multiple magnetic conductors 300 of different thicknesses are prepared, and the conductor 300 is replaced according to the actual gap size to prevent gaps between adjacent bases 100 that could affect magnetic field conduction.

[0050] When multiple stator modules 10 are assembled, there may be a situation where there is no gap between two adjacent bases 100 and the two bases 100 are directly pressed together. In this case, the magnetic conductor 300 can be directly disassembled to avoid excessive interaction force between two adjacent bases 100.

[0051] The magnetic conductive element 300 can be made of solid particles, a paste-like fluid material, or an elastic material. For example, solid particles refer to particles of highly magnetically permeable materials such as iron, steel, or silicon steel. A paste-like fluid material refers to a material comprising solid particles and a binder. An elastic material can refer to a material comprising solid particles and elastic materials such as rubber or resin, so that the magnetic conductive element 300 has both high magnetic permeability and elasticity.

[0052] Made of solid particles, the overall structure is stable and not easily changed. It is also made of a paste-like fluid material, which typically contains a large number of solid particles. This type of material has yield stress, meaning it only begins to flow under a certain external force. During the assembly of the stator module 10, two adjacent bases 100 can be brought closer together to compress the magnetic conductive element 300. This allows for adjustment of the thickness of the magnetic conductive element 300 to accommodate the distance between the two adjacent bases 100; furthermore, the compressed magnetic conductive element 300 has a larger overall area, expanding the region where it can conduct magnetic fields, thereby improving the magnetic field conduction effect between the two adjacent bases 100.

[0053] Furthermore, by using a paste-like fluid material, the surface of the base 100 can be coated only during the assembly of the magnetic drive conveyor, without affecting the early production and assembly process of the stator module 10. The magnetic conductive component 300 made of the paste-like fluid material has good adaptability and is more flexible in use.

[0054] The magnetic conductor 300 is made of an elastic material. The magnetic conductor 300 is elastic and can be compressed under external force to adapt to the gap size between two adjacent bases 100.

[0055] In some preferred embodiments, either end face of the base 100 along the first extension path is made of a magnetically conductive material. The magnetic field passes through both the magnetically conductive element 300 and the end face of the base 100. By making the end face of the base 100 magnetically conductive material, the magnetic field can pass smoothly through the end face of the base 100, preventing excessive weakening of the magnetic field as it passes through the end face and thus avoiding any impact on the stable operation of the moving submodule 40.

[0056] The base 100 is typically provided with a cover plate 120, see reference. Figures 1 to 4 , Figures 8 to 10 As shown, the interior is sealed using a cover plate 120. Part of the cover plate 120 is located at the end face of the base 100 along the first extension path. The cover plate 120 can be made of a magnetically conductive material, further reducing the thrust fluctuations experienced by the moving submodule 40 and minimizing modifications to the structure of the base 100. The cover plate 120 can be made of stainless steel with strong magnetic permeability.

[0057] refer to Figures 1 to 3 , Figure 8 , Figure 9 As shown, there is a gap between the edge of the magnetic conductor 300 and the end face edge of the base 100. The two are separated by a certain distance. To a certain extent, the end face edge of the base 100 can protect the magnetic conductor 300, so as to prevent the magnetic conductor 300 from scratching the external structure when the stator module 10 is moved or transported, which would affect the connection stability between the magnetic conductor 300 and the base 100 and prevent damage to the structure of the magnetic conductor 300.

[0058] Some embodiments of this application also provide a magnetic drive conveying device, see reference. Figure 11 As shown, the system includes the stator module 10 provided in any of the above embodiments. In addition, it includes a mounting bracket 30, a guide rail 20, and a moving module 40. Multiple stator modules 10 are assembled and installed onto the mounting bracket 30 along a preset movement path of the moving module 40. The guide rail 20 is mounted above the stator modules 10, and the moving module 40 is guided and engaged with the guide rail 20. When the stator module 10 is powered on, it drives the moving module 40 to move its position on the guide rail 20.

[0059] The gap between the bases 100 of two adjacent stator modules 10 is filled by magnetic conductors 300 to ensure the smooth conduction of the magnetic field and avoid large fluctuations in the thrust received by the moving module 40, so that the moving module 40 can operate as smoothly as possible.

[0060] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0061] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A stator module, used in a magnetic drive conveyor, characterized in that, The system includes a base (100) and an iron core (200) located inside the base (100). The base (100) includes a mounting surface (110) for mounting a guide rail (20). The guide rail (20) corresponding to the mounting surface (110) has a preset first extension path. The base (100) is provided with a magnetic conductive element (300) corresponding to the iron core (200) on at least one end face on the first extension path. The magnetic permeability of the magnetic conductive element (300) is greater than that of air. The magnetic conductive element (300) is used to conduct a magnetic field between two adjacent stator modules (10).

2. A stator module according to claim 1, characterized in that The iron core (200) includes a connecting portion (210) and a plurality of teeth (220) protruding from the surface of the connecting portion (210), all of the teeth (220) being arranged along a first extension path, and a groove (230) for placing a coil (400) being formed between two adjacent teeth (220). The plane on which the end face of the connecting part (210) near the magnetic conductor (300) is located is the first plane, and the projection of the magnetic conductor (300) along the first extension path on the first plane is the first projection. The first projection has an overlapping area with the end face of the connecting part (210) near the magnetic conductor (300).

3. A stator module according to claim 2, characterized in that The first projection covers the end face of the connecting portion (210) near the magnetic conductor (300).

4. A stator module according to claim 1, characterized in that The magnetic conductive element (300) is embedded on the end face of the base (100).

5. A stator module according to claim 1, characterized in that, The magnetic conductive element (300) is detachably connected to the base (100).

6. A stator module according to claim 1, characterized in that The base (100) is made of magnetic material at either end face along the first extension path.

7. A stator module according to claim 1, characterized in that The magnetic conductive element (300) is elastic.

8. A stator module according to claim 1, characterized in that The magnetic conductive element (300) is made of a paste-like fluid material.

9. A stator module according to claim 1, characterized in that There is a gap between the edge of the magnetic conductor (300) and the edge of the end face of the base (100).

10. A magnetic drive conveyor, characterized by, Includes the stator module (10) as described in any one of claims 1-9.

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