High-magnetic-pole-density rubber permanent magnet plate

By alternating N-pole and S-pole rubber magnets on a rubber permanent magnet plate to form a quantitative magnetic field, the problem of unstable adsorption of small-sized soft magnetic products is solved, achieving precise positioning and efficient processing.

CN223552343UActive Publication Date: 2025-11-14DONGGUAN SANTI MICROELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202423164180.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-21
Publication Date
2025-11-14
Estimated Expiration
2034-12-21

AI Technical Summary

Technical Problem

In existing technologies, small-sized soft magnetic products are prone to unstable adsorption when using rubber magnetic adsorption. Slight vibrations can cause the positioning position to fluctuate, affecting the accuracy of subsequent processing and increasing the scrap rate.

Method used

Using a high magnetic pole density rubber permanent magnet plate, the rubber magnet is magnetized unidirectionally and cut into thin strips, which are then arranged alternately with N-pole and S-pole rubber magnets to form a uniform quantitative magnetic field. This magnetic field is then connected by soft magnets to achieve precise positioning.

Benefits of technology

It improves the positioning accuracy of small-sized soft magnetic products, avoids positioning fluctuations caused by unstable adsorption, reduces scrap rate, and improves processing accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electronic component manufacturing, and discloses a high-magnetic-pole-density rubber permanent magnet plate which comprises a protective shell, a placing groove is formed in the top of the protective shell, a second connecting plate is arranged in the placing groove, a plurality of second N-pole rubber magnets are fixedly connected to the top of the second connecting plate, and the N-pole rubber magnets are fixedly connected to the top of the second connecting plate. The top of each second connecting plate is fixedly connected with a plurality of second S-pole rubber magnets, the second N-pole rubber magnets and the second S-pole rubber magnets are arranged at equal intervals, a positioning mechanism is arranged in the containing groove, and the positioning mechanism comprises a first connecting plate. According to the utility model, the N-pole rubber magnet II and the S-pole rubber magnet II are arranged in an NSN manner, and the minimum magnetic pole width between the N-pole rubber magnet II and the S-pole rubber magnet II can be 0.05-0.1 mm, so that the situations of unstable adsorption and shift magnetization polarity jump caused by slight vibration in the production process of small-size soft magnetic products are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing technology, and in particular to a high magnetic pole density rubber permanent magnet plate. Background Technology

[0002] With the rapid development of modern manufacturing, small-sized soft magnetic products are increasingly widely used in many fields, covering key industries such as electronic equipment, precision instruments, and micro sensors. In the production process of these products, the use of rubber magnetic adsorption technology to position small-sized soft magnetic products has become a common and indispensable process in industrial production due to its convenience and efficiency. Rubber magnets, with their unique flexibility and magnetism, can firmly adsorb soft magnetic products and are easy to adapt to different production scenarios, greatly improving production efficiency and reducing labor costs.

[0003] However, current methods of using rubber magnetic adsorption to attract small-sized soft magnetic products have revealed significant technical shortcomings. Existing processes often use rubber magnetic plates with relatively wide magnetic adhesive, leading to an unreasonable distribution of adsorption positions. Most soft magnetic products are concentrated on a single magnetic pole, with only a small portion spanning between two poles. This adsorption state is extremely unstable; even slight vibrations can trigger a series of chain reactions. Under the influence of minor disturbances such as equipment vibrations and material flow collisions in the production workshop, products adsorbed between two poles are easily displaced, causing a sudden change in the magnetization polarity of the soft magnetic product. This sudden change in magnetization polarity results in an instantaneous change in the force state of the small soft magnetic product, inevitably leading to positional fluctuations. High-precision positioning is crucial for the subsequent processing of small-sized soft magnetic products. This positioning deviation caused by unstable adsorption directly transmits to subsequent processing stages, significantly reducing processing accuracy and increasing the scrap rate. Therefore, a high-pole-density rubber permanent magnet plate is proposed to solve these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high magnetic pole density rubber permanent magnet plate, which aims to improve the problem in the prior art that products adsorbed between two magnetic poles are easily displaced and directly transmitted to subsequent processing stages, resulting in a significant reduction in processing accuracy and an increase in scrap rate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high magnetic pole density rubber permanent magnet plate, including a protective shell, a placement groove is provided on the top of the protective shell, a connecting plate is provided inside the placement groove, a plurality of N-pole rubber magnets are fixedly connected to the top of the connecting plate, a plurality of S-pole rubber magnets are fixedly connected to the top of the connecting plate, the N-pole rubber magnets and the S-pole rubber magnets are arranged at equal intervals, and a positioning mechanism is provided inside the placement groove.

[0006] The above technical solution involves magnetizing the rubber magnet as a single pole in one direction without magnetizing multiple poles. The magnetized rubber magnet is then cut into strips of the required width and arranged in the order of N-pole rubber magnet two, S-pole rubber magnet two, and N-pole rubber magnet two, to achieve high-density multi-pole rubber magnets. In this way, the pole width can be reduced to a minimum of 0.05 to 0.1 mm, avoiding positional fluctuations in small soft magnetic products and improving the positioning accuracy of subsequent processing.

[0007] As a further description of the above technical solution:

[0008] The positioning mechanism includes a connecting plate, the bottom of which is disposed inside the placement groove. An N-pole rubber magnet is fixedly connected to the front top of the connecting plate, and an S-pole rubber magnet is fixedly connected to the rear top of the connecting plate. Soft magnets are fixedly connected between adjacent N-pole and S-pole rubber magnets.

[0009] Through the above technical solution: magnetic lines of force are formed between the N-pole rubber magnet and the S-pole rubber magnet, and they are connected in the middle by a soft magnet, thereby forming a uniform quantitative magnetic field. The N-pole rubber magnet and the S-pole rubber magnet on both sides are blocked, so that the product is placed in the area of ​​the soft magnet and the precise positioning is achieved.

[0010] As a further description of the above technical solution:

[0011] A connecting strap is fixedly connected to the rear side of the protective shell, and a top cover is fixedly connected to one end of the connecting strap.

[0012] The above technical solution connects the protective shell and the top cover with a connecting strap, facilitating assembly and protecting the product.

[0013] As a further description of the above technical solution:

[0014] A sealing strip is fixedly connected to the bottom of the top cover, and a sealing strip is fixedly connected to the top of the protective shell.

[0015] Through the above technical solution: when the protective shell and the top cover are combined, the sealing strip one and the sealing strip two fit together to achieve the sealing treatment of the internal product.

[0016] As a further description of the above technical solution:

[0017] The sealing strip one has engagement grooves at the four bottom corners, and the sealing strip two has engagement posts fixedly connected to the four top corners.

[0018] Through the above technical solution: when sealing strip one and sealing strip two are combined, the locking post will be inserted into the locking groove to complete the mutual fixation and improve the firmness.

[0019] As a further description of the above technical solution:

[0020] A handle is fixedly connected to the front side of the protective shell.

[0021] The above technical solution provides a handle for picking up and carrying the product.

[0022] As a further description of the above technical solution:

[0023] The handle has a groove on its inner wall.

[0024] Through the above technical solution, the groove serves as a positioning feature, facilitating positioning and limiting during suspension.

[0025] As a further description of the above technical solution:

[0026] The top of the top cover and the bottom of the protective shell are respectively fixedly connected with multiple support protrusions.

[0027] The above technical solution allows for further protection against friction by using a support protrusion, as the protective shell and top cover are designed as transparent panels.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, multiple N-pole rubber magnets and S-pole rubber magnets are installed and fixed by a connecting plate. The N-pole rubber magnets and S-pole rubber magnets are arranged in an NSN configuration. At the same time, the magnetic pole width between the N-pole rubber magnets and S-pole rubber magnets can be as small as 0.05 to 0.1 mm, which avoids unstable adsorption and displacement of magnetization polarity due to slight vibration during the production of small-sized soft magnetic products.

[0030] 2. In this utility model, a pair of N-pole rubber magnets and S-pole rubber magnets are fixed by a connecting plate, forming magnetic lines of force between the N-pole rubber magnets and the S-pole rubber magnets. At the same time, the adjacent N-pole rubber magnets and S-pole rubber magnets are connected by soft magnets, thereby forming a uniform quantitative magnetic field and shielding the N-pole rubber magnets and S-pole rubber magnets on both sides, so that the product is placed in the area of ​​the soft magnets, achieving precise positioning. Attached Figure Description

[0031] Figure 1 This is a perspective view of a high magnetic pole density rubber permanent magnet plate proposed in this utility model;

[0032] Figure 2This is a schematic diagram of the sheet structure of a high magnetic pole density rubber permanent magnet plate proposed in this utility model;

[0033] Figure 3 This is a schematic diagram of the positioning mechanism for a high magnetic pole density rubber permanent magnet plate proposed in this utility model.

[0034] Figure 4 This is a schematic diagram of the structure of a protective shell for a high magnetic pole density rubber permanent magnet plate proposed in this utility model;

[0035] Figure 5 This is a schematic diagram of the spoke-shaped structure of a high magnetic pole density rubber permanent magnet plate proposed in this utility model;

[0036] Figure 6 This is a schematic diagram of the annular structure of a high magnetic pole density rubber permanent magnet plate proposed in this utility model;

[0037] Figure 7 This is a schematic diagram of the spiral structure of a high magnetic pole density rubber permanent magnet plate proposed in this utility model.

[0038] Legend:

[0039] 1. Protective shell; 2. Positioning mechanism; 201. Connecting plate one; 202. N-pole rubber magnet one; 203. S-pole rubber magnet one; 204. Soft magnet; 3. Placement slot; 4. Connecting plate two; 5. N-pole rubber magnet two; 6. S-pole rubber magnet two; 7. Connecting strip; 8. Top cover; 9. Sealing strip one; 10. Sealing strip two; 11. Engaging post; 12. Engaging groove; 13. Handle; 14. Groove; 15. Support protrusion. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] Example 1:

[0042] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a high magnetic pole density rubber permanent magnet plate, including a protective shell 1. A placement groove 3 is formed on the top of the protective shell 1. A connecting plate 4 is disposed inside the placement groove 3. Multiple N-pole rubber magnets 5 and multiple S-pole rubber magnets 6 are fixedly connected to the top of each connecting plate 4. The connecting plate 4 is used to install and fix the multiple N-pole rubber magnets 5 and S-pole rubber magnets 6. The N-pole rubber magnets 5 and S-pole rubber magnets 6 are arranged at equal intervals in an NSN (Negative-Negative-Nearest) arrangement. Simultaneously, the magnetic pole width between the N-pole rubber magnets 5 and S-pole rubber magnets 6 can be reduced to a minimum of 0.05 to 0.1 mm, avoiding over-produced small-sized soft magnetic products. During the process, the adsorption becomes unstable, and slight vibrations can cause displacement and a change in magnetization polarity. The placement groove 3 is equipped with a positioning mechanism 2. A connecting strip 7 is fixedly connected to the rear side of the protective shell 1. One end of the connecting strip 7 is fixedly connected to the top cover 8. The top cover 8 and the protective shell 1 are connected by the connecting strip 7. A sealing strip 9 is fixedly connected to the bottom of the top cover 8. A sealing strip 10 is fixedly connected to the top of the protective shell 1. Each of the four corners at the bottom of the sealing strip 9 has a locking groove 12. Each of the four corners at the top of the sealing strip 10 has a locking post 11. After the top cover 8 and the protective shell 1 are closed together, the sealing strip 9 and the sealing strip 10 seal the product and are fixed by the locking post 11 and the locking groove 12 engaging with each other.

[0043] Specifically, the top of the protective shell 1 is designed with a placement slot 3 for accommodating internal components. Inside the placement slot 3 is a connecting plate 4. Multiple N-pole rubber magnets 5 are evenly fixedly connected to the top of the connecting plate 4, and multiple S-pole rubber magnets 6 are also evenly fixedly connected to the top of the connecting plate 4. The N-pole rubber magnets 5 and S-pole rubber magnets 6 are securely installed and fixed through the connecting plate 4. The N-pole rubber magnets 5 and S-pole rubber magnets 6 are arranged in an NSN pattern, and additional... Figure 5 , Figure 6 and Figure 7Arrangements such as spokes, rings, and spirals further enhance the magnetic properties of the permanent magnet plate. Simultaneously, to achieve higher magnetic pole precision and stability, the pole width between the N-pole rubber magnet 5 and the S-pole rubber magnet 6 is controlled within the range of 0.05 to 0.1 mm. This effectively avoids potential adsorption instability and magnetization polarity jumps under slight vibrations that may occur in small-sized soft magnetic products during production. Furthermore, a connecting strap 7 is fixedly connected to the rear side of the protective shell 1, and one end of the connecting strap 7 is fixedly connected to a top cover 8. The top cover 8 is connected to the protective shell 1... The top cover 8 is connected by a connecting strip 7, thus achieving a stable opening and closing. A sealing strip 9 is fixedly connected to the bottom of the top cover 8, while a corresponding sealing strip 10 is fixedly connected to the top of the protective shell 1. This effectively prevents interference from the external environment and ensures the stability and safety of the permanent magnet plate. When the top cover 8 and the protective shell 1 are closed, the sealing strip 9 and the sealing strip 10 will fit tightly together. The permanent magnet plate is fixed by the interlocking between the locking grooves 12 at the four corners at the bottom of the sealing strip 9 and the locking posts 11 at the four corners at the top of the sealing strip 10.

[0044] Example 2:

[0045] Reference Figure 1 and Figure 3 The positioning mechanism 2 includes a connecting plate 201, the bottom of which is located inside the placement groove 3. An N-pole rubber magnet 202 is fixedly connected to the front top of the connecting plate 201, and an S-pole rubber magnet 203 is fixedly connected to the rear top of the connecting plate 201. Magnetic lines of force are formed between the N-pole rubber magnet 202 and the S-pole rubber magnet 203. A soft magnet 204 is fixedly connected between adjacent N-pole rubber magnets 202 and S-pole rubber magnets 203, and the two sides are connected by the soft magnet 204, thereby forming a uniform quantitative magnetic field and blocking the N-pole rubber magnets and S-pole rubber magnets on both sides, so that the product is placed in the area of ​​the soft magnet and achieves precise positioning.

[0046] Specifically, an N-pole rubber magnet 202 is fixedly connected to the front top of the connecting plate 201, while an S-pole rubber magnet 203 is fixedly connected to the rear top. The N-pole rubber magnet 202 and the S-pole rubber magnet 203 have different polarities, thus forming a clear magnetic field line. To further enhance the uniformity and strength of the magnetic field, a soft magnet 204 is fixedly connected between the N-pole rubber magnet 202 and the S-pole rubber magnet 203. The soft magnet 204 not only serves as a connector but also, through its magnetic properties, makes the magnetic field generated by the rubber magnets on both sides more uniform and stable. The soft magnet 204 effectively shields the N-pole and S-pole rubber magnets on both sides, thereby avoiding direct exposure of the magnetic field and possible interference. This allows the product to be accurately placed within the area of ​​the soft magnet 204, achieving precise positioning. This not only improves the positioning accuracy of the product but also ensures the efficiency and reliability of the entire operation process, significantly improving overall work efficiency and product quality.

[0047] Reference Figure 1 and Figure 4 A handle 13 is fixedly connected to the front side of the protective shell 1. A groove 14 is provided on the inner wall of the handle 13. Multiple support protrusions 15 are fixedly connected to the top of the top cover 8 and the bottom of the protective shell 1, respectively.

[0048] Specifically, since the protective shell 1 and the top cover 8 are designed as transparent panels, the support protrusion 15 can further prevent friction and avoid scratches on the panel surface.

[0049] Working principle: First, multiple N-pole rubber magnets 5 and S-pole rubber magnets 6 are installed and fixed via connecting plate 24. The N-pole rubber magnets 5 and S-pole rubber magnets 6 are arranged in an NSN pattern. The magnetic pole width between the N-pole rubber magnets 5 and S-pole rubber magnets 6 is kept to a minimum of 0.05 to 0.1 mm, preventing unstable adsorption and displacement due to slight vibration during the production of small-sized soft magnetic products, thus avoiding abrupt changes in magnetization polarity. Next, N-pole rubber magnets 202 and S-pole rubber magnets 203 are fixed via connecting plate 201. Magnetic lines of force are formed between N-pole rubber magnets 202 and S-pole rubber magnets 203. Adjacent N-pole rubber magnets 202 and S-pole rubber magnets 203 are connected by soft magnets 204, thus forming a uniform quantitative magnetic field. This shields the N-pole rubber magnets 202 and S-pole rubber magnets 203 on both sides, allowing the product to be placed within the soft magnet area for precise positioning.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high magnetic pole density rubber permanent magnet plate, comprising a protective shell (1), characterized in that: The protective shell (1) has a placement groove (3) on its top. A connecting plate (4) is provided inside the placement groove (3). Multiple N-pole rubber magnets (5) are fixedly connected to the top of the connecting plate (4). Multiple S-pole rubber magnets (6) are fixedly connected to the top of the connecting plate (4). The N-pole rubber magnets (5) and S-pole rubber magnets (6) are arranged at equal intervals. A positioning mechanism (2) is provided inside the placement groove (3).

2. The high magnetic pole density rubber permanent magnet plate according to claim 1, characterized in that: The positioning mechanism (2) includes a connecting plate (201), the bottom of which is located inside the placement groove (3). An N-pole rubber magnet (202) is fixedly connected to the front top of the connecting plate (201), and an S-pole rubber magnet (203) is fixedly connected to the rear top of the connecting plate (201). A soft magnet (204) is fixedly connected between adjacent N-pole rubber magnet (202) and S-pole rubber magnet (203).

3. The high magnetic pole density rubber permanent magnet plate according to claim 1, characterized in that: The protective shell (1) is fixedly connected to the rear side of the connecting strap (7), and one end of the connecting strap (7) is fixedly connected to the top cover (8).

4. The high magnetic pole density rubber permanent magnet plate according to claim 3, characterized in that: The bottom of the top cover (8) is fixedly connected with a sealing strip (9), and the top of the protective shell (1) is fixedly connected with a sealing strip (10).

5. A high magnetic pole density rubber permanent magnet plate according to claim 4, characterized in that: The sealing strip one (9) has four corners at the bottom with engagement grooves (12), and the sealing strip two (10) has four corners at the top with engagement posts (11).

6. The high magnetic pole density rubber permanent magnet plate according to claim 1, characterized in that: A handle (13) is fixedly connected to the front side of the protective shell (1).

7. A high magnetic pole density rubber permanent magnet plate according to claim 6, characterized in that: The inner wall of the handle (13) is provided with a groove (14).

8. The high magnetic pole density rubber permanent magnet plate according to claim 3, characterized in that: The top of the top cover (8) and the bottom of the protective shell (1) are respectively fixedly connected with multiple support protrusions (15).