Magnetic attraction structure of active capacitance pen on IPAD

By incorporating a groove and spring structure within the lower housing of the capacitive pen, the wear problem caused by exposed magnetic material is resolved, achieving stability and durability of the magnetic structure.

CN224263607UActive Publication Date: 2026-05-19SHENZHEN ZUOMU TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN ZUOMU TECH CO LTD
Filing Date
2025-07-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing capacitive pens with magnetic structures, the magnetic sheet is directly exposed to the external environment, making it prone to contact with other objects, leading to wear and damage and shortening its lifespan.

Method used

The design adopts an upper and lower shell connection. The lower shell has a groove and a fixing platform. The magnetic sheet is slidably connected between the limiting blocks, and the spring provides a restoring force, so that the magnetic sheet rebounds into the groove in the natural state to avoid wear. The connection is achieved by the spring stretching when the magnetic force is attracted.

Benefits of technology

This reduces contact wear between the magnetic sheet and external objects, extending the lifespan of the capacitive pen while ensuring a stable adsorption effect.

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Abstract

The utility model relates to the technical field of capacitance pens, and discloses a magnetic attraction structure of an active capacitance pen on an IPAD, which comprises an upper shell and a lower shell, the upper shell is connected with the lower shell, a groove is arranged in the lower shell, a fixed table is fixedly connected in the lower shell, the side wall of the fixed table is fixedly connected with a limiting block, and the limiting block is fixedly connected with the groove. A magnetic sheet is arranged in the lower shell, the side wall of the magnetic sheet is connected between limiting blocks in a sliding mode, a spring is arranged in the lower shell, the opposite sides of the limiting blocks are fixedly connected with the limiting blocks, a limiting groove is formed in the magnetic sheet, the top end of the limiting groove is arranged in a penetrating mode, and the limiting blocks are connected into the limiting groove in a sliding mode. According to the capacitive pen, the magnetic sheet can rebound into the groove in a natural state through the arrangement of the spring, contact and abrasion between the magnetic sheet and an external object are reduced, the service life is prolonged, meanwhile, when the capacitive pen is close to the iPad through magnetic force, the spring is stretched, and then the capacitive pen is connected with the iPad.
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Description

Technical Field

[0001] This utility model relates to the field of capacitive pen technology, and in particular to a magnetic attraction structure for an active capacitive pen on an iPad. Background Technology

[0002] The widespread adoption of smart devices has brought increasing attention to electronic writing tools, especially capacitive pens for tablets, which offer users a more precise and smooth writing experience. With technological advancements, many tablets, such as the iPad, have begun to support magnetic pens. This magnetic structure allows the pen to be securely attached to the edge of the device, making it convenient for users to access and preventing loss or damage.

[0003] Existing magnetic attachment structures for capacitive styluses on iPads typically use magnetic attraction, employing small, strong magnets to hold the stylus to the side of the tablet. These structures usually have magnets on the top or side of the stylus, creating a strong attraction to the iPad's metal frame. While current technology has made some progress in the magnetic attachment function of capacitive styluses, some shortcomings remain. The main problem is that when the stylus is not attached to the tablet, the magnet is directly exposed to the external environment, making it susceptible to contact with other objects, leading to wear and damage, and thus shortening the product's lifespan. Therefore, this paper proposes an active magnetic attachment structure for capacitive styluses on iPads to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an active capacitive pen magnetic attraction structure on the iPad, aiming to improve the problem in the prior art where the magnetic sheet is directly exposed to the external environment, making it easy to come into contact with other objects, leading to wear and damage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A magnetic attachment structure for an active capacitive stylus on an iPad includes an upper housing and a lower housing connected together. The lower housing has a groove inside and a fixed platform fixedly connected inside. A limit block is fixedly connected to the side wall of the fixed platform. A magnetic sheet is disposed inside the lower housing and its side wall is slidably connected between the limit blocks. A spring is disposed inside the lower housing.

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

[0008] Each of the limiting blocks is fixedly connected to a limiting block on the opposite side, and a limiting groove is formed inside the magnetic sheet.

[0009] As a further description of the above technical solution:

[0010] The top of the limiting groove is through-hole, and the limiting block is slidably connected inside the limiting groove.

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the side wall of the magnetic sheet, and the other end of the spring is fixedly connected to the side wall of the fixed platform.

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

[0014] In its natural state, the magnetic sheet is located inside the groove. In its stretched state, the upper surface of the magnetic sheet is flush with the lower housing.

[0015] As a further description of the above technical solution:

[0016] Multiple magnetic sheets are disposed inside the lower housing.

[0017] This utility model has the following beneficial effects:

[0018] In this invention, the spring allows the magnetic sheet to spring back into the groove in its natural state, reducing contact and wear with external objects and extending its service life. At the same time, when the magnetic force is applied to the iPad, the spring is stretched, thereby connecting the stylus to the iPad. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the magnetic attraction structure of an active capacitive pen on an iPad according to the present invention.

[0020] Figure 2 This is a partial structural diagram of the magnetic attraction structure of an active capacitive pen on an iPad proposed in this utility model.

[0021] Figure 3 This is a cross-sectional view of the lower shell of an active capacitive pen magnetically attached to an iPad, as proposed in this utility model.

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0023] Legend:

[0024] 1. Upper housing; 2. Lower housing; 3. Groove; 4. Fixing platform; 5. Limiting block; 6. Magnetic sheet; 7. Spring; 8. Limiting groove; 9. Restricting block. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-4 This utility model provides an embodiment of an active capacitive stylus magnetically attached structure to an iPad, comprising an upper housing 1 and a lower housing 2, which are connected to form a whole. One side of the lower housing 2 is flat, making the stylus more stable when stored. A groove 3 is provided inside the lower housing 2, and a fixed platform 4 is fixedly connected inside the lower housing 2, which not only increases the stability of the internal structure but also provides support for other components. Limiting blocks 5 are fixedly connected to the side wall of the fixed platform 4, limiting the movement range of other moving parts and ensuring normal use. A magnetic sheet 6 is provided inside the lower housing 2, and the side wall of the magnetic sheet 6 is slidably connected between the limiting blocks 5, allowing the magnetic sheet 6 to move freely within a certain range. The device is equipped with a spring 7, which is made of iron-free material. One end of the spring 7 is fixedly connected to the side wall of the magnetic sheet 6, and the other end of the spring 7 is fixedly connected to the side wall of the fixed platform 4, which provides a restoring force. In its natural state, the magnetic sheet 6 is located inside the groove 3, reducing wear. In the stretched state, the upper surface of the magnetic sheet 6 is flush with the lower housing 2. Multiple magnetic sheets 6 are provided inside the lower housing 2. When the magnetic sheet 6 is close to the iPad, the magnetic force will drive the magnetic sheet 6 to move, thereby stretching the spring 7. The limiting block 5 is fixedly connected to the limiting block 9 on opposite sides. The magnetic sheet 6 has a limiting groove 8 inside, and the top of the limiting groove 8 is through-hole. The limiting block 9 is slidably connected inside the limiting groove 8 to ensure that the magnetic sheet 6 will not fall out of the groove 3 during use.

[0027] Working principle: When the capacitive stylus needs to be magnetically connected to the iPad, bring the lower housing 2 close to the magnetic attachment point of the iPad. The magnetic force generated between the two will pull the magnetic piece 6 to move, which in turn stretches the spring 7, causing it to deform. This brings the magnetic piece 6 and the lower housing 2 to the same horizontal plane, completing the adsorption of the capacitive stylus. After the capacitive stylus is removed, the spring 7 will lose the tension and drive the magnetic piece 6 to return to its original position, moving it into the groove 3, reducing wear and extending its service life.

[0028] 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 magnetic attraction structure of an active capacitive stylus on an IPAD, comprising an upper shell (1) and a lower shell (2), characterized in that: The upper shell (1) and the lower shell (2) are connected. The lower shell (2) has a groove (3) inside. A fixed platform (4) is fixedly connected inside the lower shell (2). A limit block (5) is fixedly connected to the side wall of the fixed platform (4). A magnetic sheet (6) is provided inside the lower shell (2). The side wall of the magnetic sheet (6) is slidably connected between the limit blocks (5). A spring (7) is provided inside the lower shell (2).

2. The active capacitive stylus of claim 1, wherein the magnetic attraction structure comprises: a first magnetic attraction structure on the IPAD; and a second magnetic attraction structure on the active capacitive stylus. Each of the limiting blocks (5) has a limiting block (9) fixedly connected to one side of the limiting block (5), and a limiting groove (8) is opened inside the magnetic sheet (6).

3. The active capacitive stylus of claim 2, wherein the magnetic attraction structure comprises: a first magnetic attraction structure on the IPAD; and a second magnetic attraction structure on the active capacitive stylus. The top of the limiting groove (8) is through-hole, and the limiting block (9) is slidably connected inside the limiting groove (8).

4. The magnetic attachment structure of an active capacitive stylus on an iPad according to claim 1, characterized in that: One end of the spring (7) is fixedly connected to the side wall of the magnetic sheet (6), and the other end of the spring (7) is fixedly connected to the side wall of the fixed platform (4).

5. The active capacitive stylus of claim 4, wherein the magnetic attraction structure comprises: a first magnetic attraction structure on the IPAD; and a second magnetic attraction structure on the active capacitive stylus. In its natural state, the magnetic sheet (6) of the spring (7) is located inside the groove (3), and in its stretched state, the upper surface of the magnetic sheet (6) is flush with the lower housing (2).

6. The active capacitive stylus of claim 1, wherein the magnetic attraction structure is on the iPad. Multiple magnetic sheets (6) are provided inside the lower housing (2).