Magnetic suspension device and packaging mold

Abstract

The utility model discloses a magnetic suspension device and a packaging mould, the magnetic suspension device comprises a frame and a linear motor, the frame is provided with an installation part used for installing the linear motor, the installation part is provided with a first positioning member, the linear motor is provided with a second positioning member, and the first positioning member and the second positioning member are arranged on the frame. And the linear motor is positioned and mounted on the mounting part through the first positioning piece and the second positioning piece, and is packaged in the mounting part through glue pouring. Compared with the prior art, the linear motor provided by the utility model can be quickly positioned and mounted in the frame, the assembly can be completed in one step through integral glue pouring, and the glue pouring surface can more effectively protect the linear motor, reduce related mounting parts and effectively reduce the weight of the integral module.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet levitation technology, and in particular to a magnetic levitation device and a packaging mold. Background Technology

[0002] Magnetic levitation technology, as an advanced suspension and propulsion technology, relies on magnetic field force to levitate and propel objects, thus eliminating the friction and wear associated with traditional mechanical contact. In a magnetic levitation linear motor, the coordinated operation of the stator and mover is crucial for achieving magnetic levitation and propulsion. The stator is typically fixed within the frame of the machine and generates a magnetic field by applying current, while the mover is positioned within the load and responds to changes in the stator's magnetic field, levitizing and rotating or moving linearly under the influence of the magnetic force. This contactless propulsion method not only improves system efficiency but also significantly reduces maintenance requirements and energy consumption, making magnetic levitation technology a promising candidate for applications in high-speed transportation, precision instruments, and industrial automation.

[0003] However, in existing magnetic levitation conveyor lines, the linear motor (i.e., the stator) is connected to the frame with screws. This connection method presents challenges in positioning during installation and results in a large gap between the two components, leading to an unstable connection. Furthermore, to protect the linear motor from external environmental influences, a protective plate is typically added to the outside of the motor. This not only increases installation complexity but also results in a more complex and heavier motor module, increasing overall energy consumption. Additionally, the numerous gaps between the linear motor and the frame allow dust to accumulate. When the linear motor is running, this dust may be magnetized and attracted to the motor surface, interfering with its normal operation. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a magnetic levitation device with fewer parts, lighter weight and more stable connection, as well as a packaging mold.

[0005] The technical solution of this utility model is:

[0006] This utility model provides a magnetic levitation device, including a frame and a linear motor. The frame is provided with a mounting part for mounting the linear motor. The mounting part is provided with a first positioning member, and the linear motor is provided with a second positioning member. The linear motor is positioned and mounted to the mounting part by the first positioning member and the second positioning member, and is sealed in the mounting part by potting glue.

[0007] Furthermore, one of the first positioning element and the second positioning element is a positioning post, and the other is a positioning hole.

[0008] Furthermore, the first positioning member includes a plurality of through holes disposed on the mounting portion and a connector disposed within the through holes, the second positioning member is a positioning hole, and the connector passes through the through holes and is positioned and connected to the positioning hole.

[0009] Furthermore, the linear motor includes a metal plate and a plurality of coil modules disposed on the metal plate, and the second positioning member is disposed on the side of the metal plate opposite to the coils.

[0010] Furthermore, multiple coil modules are arranged sequentially on the metal plate, and the space between the coil modules and the mounting portion is filled with insulating colloid.

[0011] Furthermore, the insulating colloid is a black colloid, and the thermal conductivity of the insulating colloid is 0.8 to 0.9 W / mk.

[0012] Furthermore, the linear motor is encapsulated within the mounting portion of the frame using a molding process and potting compound.

[0013] This utility model also provides a packaging mold for encapsulating the above-mentioned magnetic levitation device.

[0014] The packaging mold includes a base plate, a cover plate, and two side plates. A receiving space for accommodating the frame and the linear motor is provided between the base plate and the cover plate. The side plates are disposed at the ends of the base plate and are fixedly connected to the cover plate and the base plate respectively. Furthermore, the cover plate is provided with an injection port, which communicates with the receiving space.

[0015] Furthermore, the frame includes a support plate and two extension walls disposed on both sides of the support plate, the two extension walls and the support plate together forming a mounting portion and a groove disposed opposite to each other; the base plate includes a bottom wall and two side walls disposed on both sides of the bottom wall, the bottom wall is provided with a protrusion that matches the groove, and there is a receiving gap between the protrusion and the side wall to accommodate the extension wall.

[0016] Furthermore, it also includes two encapsulation plates, which are respectively disposed on both sides of the encapsulation mold along the width direction, and each encapsulation plate is respectively sealed to the cover plate and the base plate.

[0017] The beneficial technical effects of this utility model are:

[0018] In this invention, the linear motor and frame of the magnetic levitation device are quickly positioned and installed using a first positioning component and a second positioning component, improving installation accuracy and stability. By sealing the linear motor with adhesive within the mounting portion of the frame, the need for an external protective plate is reduced, simplifying the structure of the magnetic levitation device, reducing installation complexity, and saving assembly steps and component costs. Furthermore, integral adhesive sealing reduces errors and losses caused by assembly processes, improving product yield. The adhesive surface is also more impact-resistant than existing aluminum or plastic protective plates, providing more effective product protection. Integral sealing reduces the number of components required for assembly, effectively reducing product weight, expanding application scenarios, and enhancing market competitiveness. Adhesive encapsulation improves the electromagnetic shielding performance of the motor, reduces electromagnetic interference, and enhances the motor's stability and reliability. Additionally, integral adhesive sealing eliminates gaps between the frame and the linear motor, preventing magnetization interference from dust and other contaminants, thus improving the overall performance of the magnetic levitation device. Attached Figure Description

[0019] Figure 1 This is an exploded view of the magnetic levitation device and packaging mold conforming to the preferred embodiment of this utility model;

[0020] Figure 2 yes Figure 1 Exploded view of the structure of the magnetic levitation device in China;

[0021] Figure 3 yes Figure 1 A schematic diagram of the mid-base plate.

[0022] Explanation of reference numerals in the attached figures:

[0023] Magnetic levitation device 10, frame 1, connecting plate 11, extension wall 12, mounting part 13, groove 14, first positioning part 15, linear motor 2, metal plate 201, coil module 202;

[0024] The packaging mold 20 includes a cover plate 21, a glue injection port 211, a base plate 22, a bottom wall 221, a side wall 222, a protrusion 223, a accommodating gap 224, a side plate 23, and a packaging plate 24. Detailed Implementation

[0025] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0026] Please see Figures 1 to 3 As shown, this utility model provides a magnetic levitation device 10 and a packaging mold 20 for encapsulating the magnetic levitation device 10.

[0027] Please see Figure 2 and combined Figure 1 As shown, the magnetic levitation device 10 includes a frame 1 and a linear motor 2. The frame 1 has a mounting portion 13 for mounting the linear motor 2. The mounting portion 13 has a first positioning element 15, and the linear motor 2 has a second positioning element (not shown). The linear motor 2 is positioned and mounted to the mounting portion 13 by the first positioning element 15 and the second positioning element, and then encapsulated within the mounting portion 13 by potting adhesive. This configuration effectively improves the installation accuracy and stability between the linear motor 2 and the frame 1. By sealing the linear motor 2 within the mounting portion 13 of the frame 1 with potting adhesive, the need for an external protective plate is reduced, simplifying the structure of the magnetic levitation device 10, reducing installation complexity, and saving assembly processes and component costs. Furthermore, overall potting reduces errors and losses caused by assembly processes, improving product yield. Additionally, the potted surface is more impact-resistant than existing aluminum or plastic protective plates, providing more effective protection for the product. Overall potting reduces the number of components required for assembly, effectively reducing product weight, expanding application scenarios, and enhancing product market competitiveness. Encapsulation with potting compound can improve the electromagnetic shielding performance of the motor, reduce electromagnetic interference, and enhance the motor's stability and reliability. Furthermore, overall potting eliminates gaps between the frame 1 and the linear motor 2, preventing magnetization interference from dust and other contaminants and improving the overall performance of the magnetic levitation device 10.

[0028] Specifically, the frame 1 is made of a non-magnetic metal material, such as stainless steel. The frame 1 provides a mounting base for the various components of the magnetic levitation device 10 and is connected to the load through the frame 1.

[0029] The frame 1 has an I-shaped structure and includes a connecting plate 11 and two extension walls 12 disposed on both sides of the connecting plate 11. The two extension walls 12 and the connecting plate 11 together form a mounting part 13 and a groove 14 arranged opposite to each other. The mounting part 13 is used to place the linear motor 2, and the groove 14 is used to fix the frame 1.

[0030] Furthermore, on the side enclosing the groove 14, the two extending walls 12 have different lengths. For example... Figure 2 As shown, the length of the left extension wall 12 is greater than the length of the right extension wall 12. This arrangement serves as a foolproof design, improving installation precision and accuracy.

[0031] Furthermore, in the direction perpendicular to the connecting plate 11, the depth of the mounting portion 13 is less than the depth of the groove 14. This arrangement improves the connection strength of the frame 1.

[0032] The linear motor 2 includes a metal plate 201 and multiple coil modules 202 disposed on the metal plate 201. The multiple coil modules 202 are arranged sequentially on the metal plate 201 to provide power to the magnetic levitation device 10.

[0033] Optionally, the metal plate 201 is made of a rigid material and is used to fix multiple coil modules 202 and to fix or position the coil modules 202 within the mounting portion 13 of the frame 1.

[0034] The coil module 202 includes a silicon steel sheet and a coil wound around the outside of the silicon steel sheet. By energizing the coil, a magnetic field is generated, which causes a mover placed on the load to levitate under the action of the magnetic field force and rotate or move in a straight line.

[0035] Furthermore, the connecting plate 11 is provided with a first positioning element 15, and the metal plate 201 is provided with a second positioning element on the side opposite to the coil. The linear motor 2 is positioned and connected to the mounting part 13 of the frame 1 through the first positioning element 15 and the second positioning element to achieve quick positioning and connection, which is convenient and fast.

[0036] In this embodiment, the first positioning member 15 includes several through holes disposed within the mounting portion 13 and located on the connecting plate 11, and a connector disposed within the through holes. The second positioning member is a positioning hole disposed on the side of the metal plate 201 opposite to the coil, and the connector passes through the through hole and is positioned and connected to the positioning hole. With this arrangement, the positioning and installation of the linear motor 2 and the frame 1 can be achieved with fewer connectors, saving materials and making the process convenient and quick.

[0037] In other embodiments, one of the first positioning member 15 and the second positioning member is a positioning post, and the other is a positioning hole. For example, the first positioning member 15 is a positioning post disposed on the connecting plate 11, and the second positioning member is a positioning hole disposed on the metal plate 201. Of course, the reverse is also true. The positioning post and the positioning hole enable a quick positioning connection between the linear motor 2 and the frame 1.

[0038] Furthermore, the linear motor 2 is integrally encapsulated within the mounting portion 13 of the frame 1 using potting compound. This integrated potting process eliminates the need for an external protective plate, simplifies the structure of the magnetic levitation device 10, reduces its weight, lowers installation complexity, minimizes assembly errors, and improves product yield. Additionally, potting compound encapsulation enhances the motor's electromagnetic shielding performance, reduces electromagnetic interference, and improves the motor's stability and reliability. Moreover, the integral potting compound eliminates any gaps between the frame 1 and the linear motor 2, preventing magnetization interference from dust and other contaminants and improving the overall performance of the magnetic levitation device 10.

[0039] Furthermore, the space between the coil module 202 and the mounting portion 13 is filled with insulating adhesive. This arrangement allows for simultaneous encapsulation of multiple coil modules 202 and the linear motor 2 and frame 1 in a single encapsulation process, simplifying the steps and improving connection stability. Moreover, the insulating adhesive also provides electromagnetic shielding between the coil modules 202, reducing electromagnetic interference.

[0040] Furthermore, the insulating colloid is a black colloid, meaning it is a black-looking potting and filling insulating material with low mixing viscosity and a long gel time. It exhibits excellent performance in terms of low shrinkage and low exothermic properties, and also possesses certain thermal conductivity. The thermal conductivity of the insulating colloid is 0.8–0.9 W / mK.

[0041] According to TMA analysis (ASTM E831 standard), the coefficient of thermal expansion of the insulating colloid is 31 μm / m·℃ in the temperature range of -40℃ to 50℃, and 130 μm / m·℃ in the temperature range of 90℃ to 180℃.

[0042] Furthermore, after the linear motor 2 is positioned and connected to the frame 1, it is encapsulated in the mounting part 13 of the frame 1 by encapsulation mold 20.

[0043] Please see Figure 3 and combined Figures 1 to 2 As shown, the packaging mold 20 includes a base plate 22, a cover plate 21, and two side plates 23. A receiving space for accommodating the frame 1 and the linear motor 2 is provided between the base plate 22 and the cover plate 21. Each side plate 23 is fixedly connected to the cover plate 21 and the base plate 22 respectively, thereby improving the connection and sealing performance of the packaging mold 20.

[0044] Specifically, the base plate 22 includes a bottom wall 221 and two side walls 222 disposed on both sides of the bottom wall 221. The bottom wall 221 is provided with a protrusion 223 that matches the groove 14, and a receiving gap 224 for receiving the extension wall 12 is provided between the protrusion 223 and the side wall 222.

[0045] When the linear motor 2 is placed in the encapsulation mold 20, the extension wall 12 extends into the receiving gap 224 so that the groove 14 of the linear motor 2 mates with the protrusion 223. The extension walls 12 located on both sides of the mounting part 13 abut against the top of the cover plate 21, thereby forming a sealed potting space.

[0046] Furthermore, since the two extension walls 12 have different lengths, misplacement can be effectively prevented, thus improving installation accuracy.

[0047] Furthermore, the cover plate 21 is provided with an injection port 211, which is connected to the receiving space. The insulating adhesive enters the receiving space through the injection port 211 and flows into the mounting part 13 of the frame body to encapsulate the linear motor 2 in the mounting part 13 of the frame 1.

[0048] Furthermore, it also includes two encapsulation plates 24, which are respectively disposed on both sides of the encapsulation mold 20 along the width direction. Each encapsulation plate 24 is sealed to the cover plate 21 and the bottom plate 22 respectively, so as to improve the sealing performance of the encapsulation mold 20 on the side in the length direction.

[0049] In summary, this utility model provides a magnetic levitation device 10, including a linear motor 2 and a frame 1. The linear motor 2 can be positioned and installed within the frame 1, and is integrally encapsulated in the mounting portion 13 by a sealing mold 20. The linear motor 2 and the frame 1 are quickly positioned and installed via a first positioning element 15 and a second positioning element, improving installation accuracy and stability. By sealing the linear motor 2 within the mounting portion 13 of the frame 1 with adhesive, the need for an external protective plate is reduced, simplifying the structure of the magnetic levitation device 10, reducing installation complexity, and saving assembly steps and component costs. Furthermore, integral encapsulation reduces errors and losses caused by assembly processes, improving product yield. The encapsulated surface is also more impact-resistant than existing aluminum or plastic protective plates, providing more effective product protection. Integral encapsulation reduces the number of components required for assembly, effectively reducing product weight, expanding application scenarios, and enhancing product market competitiveness. Adhesive encapsulation improves the electromagnetic shielding performance of the motor, reduces electromagnetic interference, and enhances the motor's stability and reliability. In addition, the overall potting process eliminates the gap between the frame 1 and the linear motor 2, thereby preventing magnetization interference from dust and other contaminants and improving the overall performance of the magnetic levitation device 10.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A magnetic levitation device, characterized in that, include: The frame (1) and the linear motor (2) are provided. The frame (1) is provided with a mounting part (13) for mounting the linear motor (2). The mounting part (13) is provided with a first positioning member (15). The linear motor (2) is provided with a second positioning member. The linear motor (2) is positioned and mounted to the mounting part (13) by the first positioning member (15) and the second positioning member, and is sealed in the mounting part (13) by potting glue.

2. The magnetic levitation device according to claim 1, characterized in that, One of the first positioning element (15) and the second positioning element is a positioning post, and the other is a positioning hole.

3. The magnetic levitation device according to claim 1, characterized in that, The first positioning member (15) includes a plurality of through holes disposed on the mounting part (13) and a connector disposed in the through holes. The second positioning member is a positioning hole, and the connector passes through the through holes and is positioned and connected to the positioning hole.

4. The magnetic levitation device according to claim 1, characterized in that, The linear motor (2) includes a metal plate (201) and a plurality of coil modules (202) disposed on the metal plate (201), wherein the second positioning member is disposed on the side of the metal plate (201) away from the coil.

5. The magnetic levitation device according to claim 4, characterized in that, Multiple coil modules (202) are arranged sequentially on the metal plate (201), and the space between the coil modules (202) and the mounting portion (13) is filled with insulating colloid.

6. The magnetic levitation device according to claim 5, characterized in that, The insulating colloid is a black colloid, and the thermal conductivity of the insulating colloid is 0.8 to 0.9 W / mk.

7. The magnetic levitation device according to claim 1, characterized in that, The linear motor (2) is encapsulated in the mounting part (13) of the frame (1) by encapsulation mold (20) with glue.

8. A packaging mold for packaging the magnetic levitation device as described in any one of claims 1 to 7, characterized in that, The device includes a base plate (22), a cover plate (21), and two side plates (23). A receiving space for accommodating the frame (1) and the linear motor (2) is provided between the base plate (22) and the cover plate (21). The side plates (23) are located at the ends of the base plate (22) and are fixedly connected to the cover plate (21) and the base plate (22) respectively. The cover plate (21) is provided with an injection port (211), which communicates with the receiving space.

9. The packaging mold according to claim 8, characterized in that, The frame (1) includes a connecting plate (11) and two extension walls (12) disposed on both sides of the connecting plate (11). The two extension walls (12) and the connecting plate (11) together form a mounting part (13) and a groove (14) disposed opposite to each other. The base plate (22) includes a bottom wall (221) and two side walls (222) disposed on both sides of the bottom wall (221). The bottom wall (221) is provided with a protrusion (223) that matches the groove (14). Furthermore, there is a receiving gap (224) between the protrusion (223) and the side wall (222) to accommodate the extension wall (12).

10. The packaging mold according to claim 8, characterized in that, It also includes two encapsulation plates (24), which are respectively disposed on both sides of the encapsulation mold (20) along the width direction, and each encapsulation plate (24) is sealed to the cover plate (21) and the bottom plate (22).

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