Reinforced magnetic sheet and manufacturing method thereof

Abstract

The invention discloses a reinforced magnetic sheet and a manufacturing method, the reinforced magnetic sheet comprises cover plates and magnets, the cover plates are provided with inner cavities, and the two cover plates are fixedly connected. The magnet is installed in the inner cavity, one end of the magnet is an N pole, and the other end of the magnet is an S pole, so that the cover plate has magnetism. A reinforcing piece is fixed to the inner side of the cover plate and arranged in the inner cavity. The technical problem that a large magnetic sheet is prone to breakage is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of toys, and in particular relates to a reinforced magnetic sheet and a manufacturing method thereof. Background Art

[0002] In recent years, with the continuous improvement of people's living standards, the requirements for quality of life are getting higher and higher, and more and more attention is paid to the cultivation of children. Most families give priority to the development of the intelligence of young children. For the development of children's intelligence, the market is full of various educational toys, such as magnetic piece toys.

[0003] Magnetic piece toys are made by assembling various magnetic pieces into different shapes. Young children can use their potential imagination to assemble their favorite models according to the shapes of different magnetic pieces. However, most of the current magnetic pieces are small pieces with a size of 5 to 20 cm. Such magnetic pieces are suitable for younger children to play with and cannot be built.

[0004] In toy houses or other designs with internal activities, it is usually necessary to design large magnetic sheets of 20 to 90 cm. However, if the structure of such magnetic sheets is not reinforced, they will easily break. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art, to provide a reinforced magnetic sheet and a manufacturing method, and to solve the technical problem that large magnetic sheets are easy to break.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The reinforced magnetic sheet includes a cover plate and a magnet, wherein the cover plate is provided with an inner cavity and is fixedly connected by two cover plates. The magnet is installed in the inner cavity, one end of the magnet is an N pole, and the other end of the magnet is an S pole, so that the cover plate has magnetism. The reinforced magnetic sheet also includes a reinforcing member, which is arranged in the inner cavity and fixed to the inner side of the cover plate.

[0008] Furthermore, the cover plate includes an end surface and a connecting surface. There is a gap between the end surfaces of the two cover plates. The connecting surfaces of the two cover plates are spliced ​​with each other so that the two cover plates are sealed and connected.

[0009] Furthermore, the reinforcement member adopts a reinforcement rib 1, the reinforcement rib 1 is fixed to the end surface, and the reinforcement rib 1 is fixed to the connection surface.

[0010] Furthermore, the reinforcement member adopts a second reinforcement rib, the second reinforcement rib is fixed to the end face, and the second reinforcement rib is fixed to the first reinforcement rib.

[0011] Furthermore, a connecting column 1 is provided on the inner side of the cover plate, and the connecting columns 1 of the two cover plates are plugged into each other, and reinforcing ribs 3 are fixed to the inner side of the cover plate and the connecting column 1.

[0012] Furthermore, the connection between the two cover plates is fixed by ultrasonic welding.

[0013] Furthermore, the cover plate is provided with a through hole, a plate body is fixed between the two cover plates, the plate body and the through hole are arranged correspondingly, and the customized information on the plate body is arranged in the through hole.

[0014] Furthermore, a mounting piece is provided on the inner side of the cover plate, and the mounting piece is fixed to the plate body.

[0015] Furthermore, the mounting member adopts connecting column 2, the connecting columns 2 of the two cover plates are plugged into each other, the plate body is provided with a mounting hole, the connecting column 2 passes through the mounting hole, and reinforcing ribs 4 are fixed to the inner side of the cover plate and the connecting column 2.

[0016] Furthermore, the cover plate is provided with a groove, and the groove is recessed toward the inner cavity.

[0017] Furthermore, a mounting frame is provided on the inner side of the cover plate, and a mounting groove is formed on the mounting frame. The mounting groove is used to install the magnet, and a reinforcing rib five is fixed on the inner side of the mounting groove.

[0018] Furthermore, a light-emitting component is provided on the inner side of the cover plate, and the cover plate is a light-transmitting cover plate, and light from the light-emitting component can pass through the cover plate.

[0019] Furthermore, a battery is provided on the inner side of the cover plate, and the battery supplies power to the light-emitting element.

[0020] The method for manufacturing a reinforced magnetic sheet is characterized by comprising the following steps:

[0021] S1. The cover plate is integrally injection molded by a mold.

[0022] S2. Install the magnet in the inner cavity of the cover.

[0023] S3. The plate body is processed separately, customized, and then the plate body is set between two cover plates.

[0024] S4. Splice the two cover plates together, and plug the connecting columns on the inner sides of the cover plates into each other, so that the two cover plates are fixedly connected.

[0025] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0026] The present invention arranges multiple reinforcement members on the inner side of the cover plate, and the reinforcement members increase the strength and rigidity of the cover plate. The strength of the present invention after the reinforcement members are arranged is about 15% greater than the strength without the reinforcement members. The size of the magnetic sheet can be designed to be 20 to 90 cm, thus solving the technical problem that large magnetic sheets are easy to break. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0029] Figure 2 for Figure 1 Exploded diagram of

[0030] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0031] Figure 4 This is a schematic diagram of the structure of the cover plate in the first embodiment of the present invention;

[0032] Figure 5 This is a structural schematic diagram of a cover plate installed with a light-emitting component in Embodiment 1 of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the plate body in the first embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the third embodiment of the present invention.

[0036] In the figure, 1-cover plate; 1a-end face; 1b-connecting face; 2a-reinforcing rib one; 2b-reinforcing rib two; 2c-reinforcing rib three; 2d-reinforcing rib four; 3-connecting column one; 4-connecting column two; 5-installation frame; 6-installation slot; 7-PC sheet; 8-installation hole; 9-through hole; 10-groove; 11-light strip; 12-fixing slot; 13-battery. DETAILED DESCRIPTION

[0037] The invention designs a reinforced magnetic sheet, the size of which is designed to be 20 to 90 cm, and is used in a toy house with internal activities or other shapes.

[0038] like Figures 1 to 6 As shown, this is the first embodiment of the present invention.

[0039] The reinforced magnetic sheet comprises a cover plate 1 and a magnet. The cover plate 1 is formed by integral injection molding of a mold. In the present invention, a plurality of reinforcing members are arranged on the inner side of the cover plate 1.

[0040] The cover plate 1 of the present invention includes an end face 1a and a connecting face 1b, the connecting face 1b is designed to be in an arc shape, and the connecting face 1b is arranged at the edge of the end face 1a. The design of the arc surface can effectively prevent the corners of the magnetic sheet from being too sharp, thereby reducing the accidental injuries that children may suffer during play. This design makes the magnetic sheet more suitable for children, and parents can also let their children play and explore more assuredly. At the same time, the design of the arc surface makes the magnetic sheet more rounded and soft visually, and the overall appearance is more beautiful. This beautiful appearance can attract children's attention and stimulate their curiosity and desire to explore. Moreover, the magnetic sheet with an arc surface is more flexible when spliced, and it is easier to build various shapes and structures. This flexibility helps to stimulate children's creativity and imagination, allowing them to learn more knowledge and skills while playing. The end face 1a and the connecting face 1b form an inner cavity, and there is a certain distance between the end faces 1a of the two cover plates 1. The connecting faces 1b of the two cover plates 1 are spliced ​​with each other, so that the two cover plates 1 are sealed and connected.

[0041] The present invention fixes multiple reinforcing ribs 2a between the end face 1a and the connecting face 1b. The reinforcing ribs 2a are one of the reinforcing members, which are used to increase the structural strength of the end face 1a and the connecting face 1b, and can reduce the stress concentration between the end face 1a and the connecting face 1b, avoid deformation between the end face 1a and the connecting face 1b, and effectively improve the anti-deformation ability and bearing capacity of the magnetic sheet. The reinforcing ribs 2a of the present invention can fix the end face 1a and one of the connecting faces 1b, and can also fix the end face 1a and two connecting faces 1b.

[0042] When the reinforcing rib 1 2a is fixed to the end face 1a and the two connecting faces 1b, the reinforcing rib 1 2a has a certain length. At this time, the reinforcing rib 2b is arranged between the end face 1a and the reinforcing rib 1 2a. The reinforcing rib 2b and the reinforcing rib 1 2a are arranged crosswise. The reinforcing rib 2b is one of the reinforcing members. The reinforcing rib 2b strengthens the reinforcing rib 1 2a, further increases the structural strength of the end face 1a and the connecting face 1b, and improves the bearing capacity of the cover plate 1. The arrangement of the reinforcing rib 1 2a and the reinforcing rib 2b can improve the strength and rigidity of the magnetic sheet, increase the stability of the magnetic sheet during use, and make the magnetic sheet better adapt to the needs of these complex application scenarios. Moreover, the reinforcing rib 1 2a and the reinforcing rib 2b can also serve as flow channels in the injection molding process, promote the filling and uniform distribution of the injection molding material, and improve the production quality of the magnetic sheet.

[0043] The inner side of the cover plate 1 is provided with a connecting column 3, and the number of the connecting column 3 is designed according to the size of the cover plate 1. The connecting column 3 of one of the cover plates 1 is provided with a connecting column hole 1, and the connecting column 3 of the other cover plate 1 is inserted into the connecting column hole 1, so that the connecting columns 3 of the two cover plates 1 are plugged into each other to connect the two cover plates 1. In the present invention, a reinforcing rib 3 2c is fixed on the inner side of the cover plate 1 and the connecting column 3, and the reinforcing rib 3 2c is one of the ways of the reinforcing member, which increases the bearing capacity of the connecting column 3 and avoids the connection column 3 from breaking when plugging.

[0044] When the two cover plates 1 are fixed, ultrasonic welding is used to fix them at the contact point of the connecting surface 1b, which has the following technical effects:

[0045] (1) Ultrasonic welding technology only takes 1.1 to 2.5 seconds on average to complete the welding of a product, significantly improving production efficiency. Moreover, ultrasonic welding can reach the strength of the plastic part itself, making the magnetic sheet more durable and less prone to damage.

[0046] (2) The appearance of the magnetic sheets produced by ultrasonic welding technology can maintain consistency, reducing defects caused by uneven welding. At the same time, ultrasonic welding does not require the use of glue or other adhesives, reducing the use of harmful substances, making the magnetic sheets safer, more environmentally friendly and suitable for children. Moreover, the magnetic sheets are tightly connected through ultrasonic welding technology and are not easy to fall off or break, ensuring the integrity and stability of the toy.

[0047] (3) The surface of the ultrasonically welded magnetic sheet is smooth and burr-free, comfortable to the touch, and suitable for young babies to grasp. In addition, the magnetic sheet is connected by magnetic force, making the assembly process easier and simpler, suitable for children to build creatively.

[0048] (4) The magnetic sheet can be made of environmentally friendly materials, such as ABS plastic, which is recyclable and is beneficial to resource conservation and environmental protection.

[0049] The present invention installs a customized plate body between two cover plates 1. The cover plate 1 is provided with a through hole 9. The plate body and the through hole 9 are arranged correspondingly. The plate body is a PC sheet 7. The PC sheet 7 has excellent physical and chemical properties, and has the characteristics of high transparency, high impact strength and good heat resistance, making the PC sheet 7 an ideal material for customized LOGO. Through specific technology, logos, patterns, etc. can be customized on the PC sheet 7, and users can see the customized information of the PC sheet 7.

[0050] The inner side of the cover plate 1 is provided with a mounting part, and the mounting part adopts a connecting column 24. The number of connecting columns 24 is designed according to the size of the cover plate 1. The connecting column 24 of one cover plate 1 is provided with a connecting column hole 2, and the connecting column 24 of the other cover plate 1 is inserted into the connecting column hole 2, so that the connecting columns 24 of the two cover plates 1 are plugged into each other. The PC sheet 7 is provided with a mounting hole 8, and the connecting column 24 passes through the mounting hole 8. When the two cover plates 1 are disassembled, the PC sheet 7 can be replaced in time to meet various customized needs, and the PC sheet 7 can be processed separately. The inner side of the cover plate 1 and the connecting column 24 are fixed with reinforcing ribs 42d. The reinforcing ribs 42d are one of the reinforcements, which increase the bearing capacity of the connecting column 24 and avoid the connection column 24 from breaking when plugging.

[0051] The inner side of the cover plate 1 is provided with a mounting frame 5, and the mounting frame 5 is formed with a mounting groove 6. The magnet is installed in the mounting groove 6. The shape of the magnet is preferably cylindrical, one end of the magnet is an N pole, and the other end of the magnet is an S pole, so that the cover plate 1 has magnetic properties, and the magnetic pieces will rotate and connect by themselves when they are assembled. A reinforcing rib 5 is fixed on the inner side of the mounting groove 6. The reinforcing rib 5 is one of the reinforcement members, which increases the structural strength of the mounting groove 6 and satisfies the embedded installation of the magnet.

[0052] The cover plate 1 is a light-transmitting cover plate 1, preferably ABS plastic, which has the following technical effects:

[0053] (1) ABS plastic is a widely used engineering plastic. It is widely used in toy manufacturing due to its excellent impact resistance and chemical stability. It is non-toxic, odorless, does not release harmful substances, and does not pose a threat to children's health. At the same time, the edges and corners of ABS plastic can be processed to be rounded and smooth to avoid grinding hands, further ensuring the safety of children when using magnetic pieces.

[0054] Moreover, ABS plastic has high strength and toughness, can withstand large external forces and impacts, and is not easy to break. This allows the magnetic sheet to maintain its integrity for a longer period of time during use, extending the service life of the toy.

[0055] (2) ABS plastic has good processing properties and can be used to produce magnetic sheets with a frosted texture. This texture not only makes the magnetic sheets more comfortable to touch, but also improves the overall texture of the toy.

[0056] ABS plastic magnetic sheets also have advantages in color matching and light transmittance. High-quality ABS plastic magnetic sheets usually have a rich selection of colors, and the colors are bright and long-lasting and not easy to fade. At the same time, ABS plastic has good light transmittance, which can make the magnetic sheets present beautiful light and shadow effects under the light, increasing the fun and appreciation of the toy.

[0057] (3) The construction of magnetic tiles is very flexible and can train children's trial and error ability, construction ability and spatial sense. When children are building magnetic tiles, they need to think about how to connect them, how to adjust the angle and position, etc., which helps to improve their spatial cognition and logical thinking ability.

[0058] The magnetic sheet incorporates a lot of knowledge points, such as physical knowledge of magnetism, force balance and space geometry, etc. Children can learn these knowledge points imperceptibly while playing, improving their scientific literacy and comprehensive ability.

[0059] A light-emitting element is provided on the inner side of the cover plate 1. The light-emitting element is a light strip 11. The light of the light strip 11 can pass through the cover plate 1 to provide brightness. The following technical effects are achieved:

[0060] (1) Under the irradiation of light, it can present a colorful effect. This effect is particularly obvious under sunlight or light, making the model built with magnetic sheets like a work of art, full of visual impact.

[0061] Moreover, when the magnetic sheet rotates or moves under the light, the light inside it will also show different colors and brightness as the angle changes. This dynamic changing effect makes the magnetic sheet more attractive.

[0062] (2) The luminous effect of magnetic sheets provides children with more room for imagination. They can use magnetic sheets to build various shapes and display different visual effects through the illumination of light, thus stimulating their creativity and imagination.

[0063] Magnetic sheets can also be used as props for light and shadow games. Children can observe the reflection and refraction of light on magnetic sheets by adjusting the angle and position of magnetic sheets under sunlight or light, and further explore the mystery of light and shadow.

[0064] (3) The luminous effect of magnetic sheets makes them suitable for indoor decoration. Children can build magnetic sheets into various shapes and place them on bookshelves, windowsills or bedside tables, adding a unique artistic atmosphere to the room.

[0065] Moreover, magnetic sheets can also be used as a tool for educational enlightenment. By building magnetic sheet models, children can learn basic concepts such as color, shape, and space, and can also explore the mysteries of science by observing the reflection and refraction of light.

[0066] A battery is provided on the inner side of the cover plate 1, and the battery supplies power to the light strip 11. In the present invention, a fixing groove 12 can be provided on the cover plate 1, and the battery 13 can be installed in the fixing groove 12, and then a battery compartment cover can be provided at the fixing groove 12 to facilitate the replacement of the battery 13; the battery 13 can also be directly fixed on the inner side of the cover plate 1 by a buckle. The installation method of the battery 13 in the present invention is not limited to the above two methods, and other fixing methods can be used to fix the battery 13 on the inner side of the cover plate 1. When installing the battery, install the battery correctly according to the positive and negative pole markings.

[0067] The outer surface of the cover plate 1 is provided with a plurality of grooves 10, which are sunken toward the inner cavity, so that it is convenient for a child to grasp the magnetic sheet with his hands, and the design of the grooves 10 can also increase the aesthetics of the magnetic sheet.

[0068] In the first embodiment, the shape of the cover plate 1 is designed to be square, so that the shape of the magnetic sheet is also square.

[0069] like Figure 7 As shown, this is the second embodiment of the present invention.

[0070] Based on the structure of the first embodiment of the present invention, the present invention changes the shape of the cover plate 1 and designs the shape of the cover plate 1 to be a trapezoid, so that the shape of the magnetic sheet is also a trapezoid.

[0071] like Figure 8 As shown, this is the third embodiment of the present invention.

[0072] Based on the structure of the first embodiment of the present invention, the present invention changes the shape of the cover plate 1 and designs the shape of the cover plate 1 to be a triangle, so that the shape of the magnetic sheet is also a triangle.

[0073] Magnetic pieces are a kind of toy with creative and educational significance. They adopt various shapes such as triangle, square and trapezoid. Chamfers can be set on triangular, square and trapezoidal magnetic pieces, and the chamfers can be large or small. The specific dimensions can be designed as follows: the shape of the magnetic piece is a square with a side length of 420mm and a thickness of 13mm; the shape of the magnetic piece is an equilateral triangle with a side length of 400-405mm and a thickness of 13mm; the shape of the magnetic piece is an isosceles trapezoid with a bottom length of 820-825mm, a height of 360-365mm and a thickness of 13mm. The combination and matching of triangular, square and trapezoidal magnetic pieces, the vertices of the three types of virtual intersection lines are overlapped, which can stimulate the creativity and imagination of players, allowing them to discover new building methods and structures through continuous trials and experiments. At the same time, the construction process of magnetic pieces can exercise players' hands-on ability, spatial imagination and logical thinking ability, which has a positive impact on children's intellectual development. Moreover, the diversity and variability of magnetic pieces make the building process full of fun, and players can experience a sense of accomplishment and satisfaction during the construction.

[0074] The method for making a reinforced magnetic sheet comprises the following steps:

[0075] S1. Install the mold on the injection molding machine to ensure that the mold is firmly installed and the installation position is accurate. Inject the molten material into the mold to fill the mold cavity, and use the mold to integrally inject the cover plate of the present invention. During the injection molding process, control the temperature, pressure and injection molding speed. After the injection molding is completed, let the material in the mold cool naturally to room temperature to solidify. When the material in the mold is completely solidified, open the mold and take out the injection molded cover plate.

[0076] The removed cover can be subjected to appearance inspection, dimension measurement and performance test to ensure that the cover meets the design requirements.

[0077] S2. Install the magnet in the inner cavity of the cover plate 1, ensuring that the position and direction of the magnet are correct.

[0078] S3, the plate body is processed separately and customized, wherein the plate body adopts PC sheet 7, and according to the size of the cover plate 1, the PC sheet 7 of the set size can be cut by laser, and then the logo, pattern, etc. are customized on the PC sheet 7, and then the plate body is set between the two cover plates 1.

[0079] S4. Splice the two cover plates 1 together, and plug the connecting columns 3 inside the cover plates 1 into each other, so that the two cover plates 1 are fixedly connected.

[0080] The edges of the two cover plates 1 can be further fixed by ultrasonic welding, which specifically includes the following steps:

[0081] 1) Start the ultrasonic welding machine, and the welding head applies a set pressure to the edges of the two cover plates 1 under the action of air pressure.

[0082] 2) The ultrasonic generator converts electrical energy into high-frequency vibration waves, which are transmitted to the edge of the cover plate 1 through the transducer and the welding head. The welding head vibrates at a frequency of 20,000 to 40,000 times per second, generating friction heat.

[0083] 3) Under the combined effect of high-frequency vibration and pressure, the edge of the cover plate 1 begins to melt and forms a molten pool. The material in the molten pool fuses between molecular layers, thereby achieving welding between the two cover plates 1.

[0084] 4) After welding is completed, turn off the ultrasonic welding machine and let the material in the molten pool cool and solidify naturally to obtain the required magnetic sheet. During the cooling process, avoid applying external force to the welding part to avoid affecting the welding quality.

[0085] 5) Perform an appearance inspection on the welded magnetic sheet to ensure that the welded area is flat, smooth, and free of cracks or defects. Then perform performance tests on the welded magnetic sheet, such as tensile test, magnetic performance test, etc., to ensure that it meets the use requirements. When defective products appear, the magnetic sheet with unqualified welding quality should be reworked or scrapped.

[0086] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto.

Claims

1. Reinforced magnetic sheet, including: A cover plate, wherein the cover plate is provided with an inner cavity and two cover plates are fixedly connected; A magnet, wherein the magnet is installed in the inner cavity, one end of the magnet is an N pole, and the other end of the magnet is an S pole, so that the cover plate has magnetic properties; It is characterized by further comprising: A reinforcement member is arranged in the inner cavity and fixed on the inner side of the cover plate.

2. The reinforced magnetic sheet according to claim 1, characterized in that: The cover plate comprises an end surface and a connecting surface. There is a gap between the end surfaces of the two cover plates. The connecting surfaces of the two cover plates are spliced ​​with each other so that the two cover plates are sealed and connected.

3. The reinforced magnetic sheet according to claim 2, characterized in that: The reinforcement member adopts a reinforcement rib 1, and the reinforcement rib 1 is fixed to the end surface, and the reinforcement rib 1 is fixed to the connecting surface.

4. The reinforced magnetic sheet according to claim 3, characterized in that: The reinforcing member adopts reinforcing rib 2, and the reinforcing rib 2 is fixed to the end face, and the reinforcing rib 2 is fixed to the reinforcing rib 1.

5. The reinforced magnetic sheet according to claim 1, characterized in that: A connecting column 1 is provided on the inner side of the cover plate, and the connecting columns 1 of two cover plates are plugged into each other. A reinforcing rib 3 is fixed to the inner side of the cover plate and the connecting column 1.

6. The reinforced magnetic sheet according to claim 5, characterized in that: The connection between the two cover plates is fixed by ultrasonic welding.

7. The reinforced magnetic sheet according to claim 1, characterized in that: The cover plate is provided with a through hole, a plate body is fixed between the two cover plates, and the plate body and the through hole are arranged correspondingly, so that the customized information on the plate body is arranged in the through hole.

8. The reinforced magnetic sheet according to claim 7, characterized in that: A mounting piece is provided on the inner side of the cover plate, and the mounting piece fixes the plate body.

9. The reinforced magnetic sheet according to claim 8, characterized in that: The mounting member adopts connecting column 2, the connecting columns 2 of the two cover plates are plugged into each other, the plate body is provided with a mounting hole, the connecting column 2 passes through the mounting hole, and reinforcing rib 4 is fixed to the inner side of the cover plate and the connecting column 2.

10. The reinforced magnetic sheet according to claim 1, characterized in that: The cover plate is provided with a groove, and the groove is recessed toward the inner cavity.

11. The reinforced magnetic sheet according to claim 1, characterized in that: An installation frame is provided on the inner side of the cover plate, and an installation groove is formed on the installation frame. The installation groove is used to install the magnet, and a reinforcing rib five is fixed on the inner side of the installation groove.

12. The reinforced magnetic sheet according to claim 1, characterized in that: A light-emitting component is disposed on the inner side of the cover plate, and the cover plate is a light-transmitting cover plate, and the light of the light-emitting component can pass through the cover plate.

13. The reinforced magnetic sheet according to claim 12, characterized in that: A battery is provided on the inner side of the cover plate, and the battery supplies power to the light-emitting element.

14. The method for manufacturing the reinforced magnetic sheet according to claim 1, characterized in that: The steps include: S1, integrally injecting the cover plate into a mold; S2, installing the magnet in the inner cavity of the cover plate; S3, processing the plate body separately, customizing the plate body, and then setting the plate body between the two cover plates; S4. Connect and fix the two cover plates together.

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