Magnetic rotation counterpoint mobile phone shell

Abstract

The utility model discloses a magnetic rotation alignment mobile phone shell which comprises a shell body, a magnetic rotation RX end and a wireless charging adaptation structure. The shell is light and thin, and a positioning groove is formed in the inner wall; the magnetic gyration RX end is composed of a plurality of radial small magnet units in an annular array, the magnetic force direction is parallel to the thickness plane of the shell, and a magnetic interference suppression layer is arranged on the back face. The wireless charging adaptation structure comprises a conducting strip, a shielding layer and an insulating partition plate, and corresponds to the RX end of the magnetic gyration; the mobile phone shell can remarkably reduce magnetic interference, improve magnetic attraction force, ensure high-efficiency transmission of wireless charging, keep the light and thin hand feeling and holding comfort of the mobile phone shell, and is suitable for vehicle-mounted scenes and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of mobile phone cases and wireless charging accessories, and in particular to magnetic rotary alignment mobile phone cases. Background Technology

[0002] Existing phone cases, including some magnetic charging cases, have a built-in magnetic ring inside as the RX end. Users complain that traditional magnetic rings cause the phone to overheat (interfering with wireless charging / NFC signals by 72%), and have a failure rate >40%. Insufficient magnetic force from the phone case makes accessories easily fall off (a risk in in-car scenarios). Typical magnetic phone cases have magnetic rings thicker than 1.2mm, making the case too thick and uncomfortable to hold, and the heavy magnetic ring ruins the slim feel of the phone. Traditional RX ends (phone cases, etc.) consist of axially magnetized magnets. Utility Model Content

[0003] The purpose of this invention is to provide a magnetic rotary alignment phone case to overcome the shortcomings of the existing technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A magnetic gyro alignment phone case includes a housing, a magnetic gyro RX end, and a wireless charging adapter structure. The housing is a thin and lightweight design with a thickness not exceeding 0.8mm, and its inner wall has several positioning grooves for fixing internal components. The magnetic gyro RX end is located on the side of the housing near the wireless charger and is composed of multiple radial small magnet units. Each radial small magnet unit is made using radial alignment technology and is arranged in a ring array to form a complete magnetic gyro RX end. The wireless charging adapter structure is embedded inside the housing and corresponds to the outer arc magnetic area of ​​the magnetic gyro RX end. It includes a conductive sheet and a shielding layer. The conductive sheet and... Insulating partitions are provided between the shielding layers to achieve electrical isolation; the magnetic pole distribution of the radial small magnet unit is an outer arc S pole and an inner arc N pole, and the magnetic force direction is parallel to the thickness plane of the shell. A magnetic interference suppression layer is provided on the back of the radial small magnet unit. The magnetic interference suppression layer is made of a high magnetic permeability material and is fixed to the non-working surface of the radial small magnet unit by adhesive bonding; a coupling enhancement core is provided at the center of the magnetic gyroscopic RX end. The coupling enhancement core is a cylindrical structure made of soft magnetic material. Its height is consistent with the height of the radial small magnet unit, and a nanoscale magnetic permeable coating is uniformly coated on the outer surface of the coupling enhancement core.

[0006] A further preferred embodiment: the number of radial small magnet units is 12 to 16, the thickness of each radial small magnet unit is 0.4 mm to 0.6 mm, and the gap between two adjacent radial small magnet units is filled with a flexible sealing strip, which is made of silicone material and fixed inside the shell by a pressing process.

[0007] A further preferred embodiment: the edge of the magnetic interference suppression layer extends to the side of the radial small magnet unit to ensure that the magnetic interference on the non-working surface is close to zero.

[0008] A further preferred embodiment: The top of the coupling enhancement core is provided with a groove, and a magnetic flux adjustment plate is embedded in the groove. The magnetic flux adjustment plate is made of amorphous alloy material and is fixed in the groove by a snap-fit ​​method.

[0009] A further preferred embodiment: the outer surface of the housing is provided with an anti-slip textured layer, which is made of polyurethane material and formed by a spraying process.

[0010] A further preferred embodiment: the conductive sheet is circular or polygonal in shape, and the insulating partition is made of polyimide film.

[0011] A further preferred embodiment: The magnetic linear density between the outer arc S pole and the inner arc N pole of the radial small magnet unit is optimized, so that the single-sided magnetic force at the magnetic gyro RX end is increased by 1.8 to 2.2 times compared with the traditional axial magnetized magnet.

[0012] The structure and implementation principle of this utility model are as follows: The magnetic cyclotron RX end forms a cohesive magnetic field through the ring array of radial small magnet units. When the mobile phone case is close to the wireless charger, the outer arc S pole of the magnetic cyclotron RX end and the N pole of the wireless charger TX end are magnetically attracted. Since the magnetic force direction of the radial small magnet units is parallel to the thickness plane of the case, the magnetic force is concentrated on the outer arc side and will not affect the mobile phone components inside the case. At the same time, the coupling enhancement core guides the magnetic lines of force to form a closed loop through the characteristics of soft magnetic material, further enhancing the magnetic attraction effect. The magnetic interference suppression layer effectively reduces the magnetic leakage on the back of the radial small magnet units. The flexible sealing strip ensures the stability between the radial small magnet units. The cooperative design of the conductive sheet and the shielding layer ensures the efficient transmission of wireless charging signals. The magnetic flux adjustment sheet is used to fine-tune the magnetic flux distribution of the coupling enhancement core to adapt to different wireless charging power requirements.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The combined design of radial small magnet units and magnetic interference suppression layer significantly reduces magnetic interference to phone components inside the phone case, solving the technical problems of traditional magnetic rings causing phone overheating and wireless charging / NFC signal failure; 2. Through the synergistic effect of coupling enhancement core and magnetic flux adjustment sheet, the magnetic attraction force is increased by 1.8 to 2.2 times compared to traditional designs, effectively avoiding the risk of accessories falling off in automotive scenarios; 3. The overall thickness of the case is controlled within 0.8mm. Through the optimized design of flexible sealing strip and anti-slip texture layer, the phone maintains a slim and lightweight feel while improving grip comfort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the wireless charging adapter structure of this utility model.

[0017] Figure 3 This is a cross-sectional view of the radial small magnet unit and the magnetic interference suppression layer of this utility model;

[0018] Figure 4 This is a schematic diagram of the coupling enhancement core and magnetic flux adjustment plate of this utility model.

[0019] The attached figures are labeled as follows:

[0020] 1. Housing; 3. Radial small magnet unit; 4. Magnetic interference suppression layer; 5. Flexible sealing strip; 6. Coupling enhancement core; 7. Magnetic flux adjustment plate; 8. Conductive sheet; 9. Shielding layer; 10. Insulating partition; 14. Groove; 15. Outer arc S pole; 16. Inner arc N pole. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. When the number of elements is referred to as "multiple," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings:

[0025] Please see Figure 1 This utility model provides a magnetic gyro alignment phone case, including a housing 1, a magnetic gyro RX end, and a wireless charging adapter structure. The housing 1 is a thin and lightweight design with a thickness not exceeding 0.8mm, and its inner wall has several positioning grooves for fixing internal components. The magnetic gyro RX end is located on the side of the housing 1 near the wireless charger and is composed of multiple radial small magnet units 3. Each radial small magnet unit 3 is made using radial orientation technology and arranged in a ring array to form a complete magnetic gyro RX end. The wireless charging adapter structure is embedded inside the housing 1 and corresponds to the outer arc magnetic force area of ​​the magnetic gyro RX end. It includes a conductive sheet 8 and a shielding layer 9, and an insulating partition 10 is provided between the conductive sheet 8 and the shielding layer 9 to achieve electrical isolation.

[0026] Please see Figure 3 The specific structure of the magnetic cyclotron RX end is further broken down as follows: There are 12 to 24 radial small magnet units 3, each with a thickness of 0.4 mm to 0.6 mm. A flexible sealing strip 5, made of silicone material, is filled between adjacent radial small magnet units 3 and fixed inside the housing 1 using a pressing process. The magnetic pole distribution of the radial small magnet units 3 is an outer arc S pole 15 and an inner arc N pole 16, with the magnetic force direction parallel to the thickness plane of the housing 1. A magnetic interference suppression layer 4 is provided on the back of the radial small magnet units 3. This layer is made of a high-permeability material and is fixed to the non-working surface of the radial small magnet units 3 by adhesive bonding. Its thickness is 0.1 mm to 0.2 mm, and its edges extend to the sides of the radial small magnet units 3, covering a width of at least 2 mm to ensure that the magnetic interference on the non-working surface is close to zero.

[0027] Please see Figure 4 A coupling enhancement core 6 is located at the center of the magnetocyclotron RX end. The coupling enhancement core 6 is a cylindrical structure made of soft magnetic material, and its height is the same as the height of the radial small magnet unit 3. The diameter of the coupling enhancement core 6 is 8mm to 10mm, and its top has a groove 14. A magnetic flux adjustment plate 7, made of amorphous alloy material, is embedded in the groove 14 and fixed within it by a snap-fit ​​mechanism. The outer surface of the coupling enhancement core 6 is uniformly coated with a nano-scale magnetically conductive coating to further optimize the closure effect of the magnetic field lines.

[0028] Please see Figure 2The specific arrangement of the wireless charging adapter structure is as follows: The conductive sheet 8 is circular or polygonal in shape, with a diameter or maximum diagonal length of 20mm to 30mm. An insulating partition 10 is provided between the conductive sheet 8 and the shielding layer 9. The insulating partition 10 is made of polyimide film with a thickness of 0.2mm to 0.3mm. The cooperative design of the conductive sheet 8 and the shielding layer 9 ensures efficient transmission of wireless charging signals while avoiding the influence of electromagnetic interference on mobile phone components.

[0029] The outer surface of the casing 1 is provided with an anti-slip textured layer, which is made of polyurethane material and formed by a spraying process. Its thickness is 0.1mm to 0.15mm and its surface roughness is Ra1.6 to Ra3.2. The anti-slip textured layer not only improves the comfort of holding the phone, but also effectively prevents the phone from slipping out of the hand.

[0030] Connection relationships and operating principles

[0031] The magnetic cyclotron RX end forms a cohesive magnetic field through a ring array of radial small magnet units 3. When the phone case is close to the wireless charger, the outer arc S pole 15 of the magnetic cyclotron RX end magnetically attracts the N pole of the wireless charger TX end. Since the magnetic force direction of the radial small magnet units 3 is parallel to the thickness plane of the housing 1, the magnetic force is concentrated on the outer arc side without affecting the phone components inside the housing 1. The coupling enhancement core 6 guides the magnetic lines of force to form a closed loop through the properties of the soft magnetic material, further enhancing the magnetic attraction effect. The magnetic interference suppression layer 4 effectively reduces magnetic leakage on the back of the radial small magnet units 3, while the flexible sealing strip 5 ensures the stability between the radial small magnet units 3. The cooperative design of the conductive sheet 8 and the shielding layer 9 ensures efficient transmission of wireless charging signals, and the magnetic flux adjustment sheet 7 is used to fine-tune the magnetic flux distribution of the coupling enhancement core 6 to adapt to different wireless charging power requirements.

[0032] Real-world application scenarios

[0033] Taking an in-vehicle scenario as an example, when a user places a phone with this novel phone case on a car wireless charging holder, the outer arc S pole 15 of the magnetic cycloidal RX end and the N pole of the wireless charger TX end generate a strong magnetic attraction, allowing the phone to quickly and accurately align and adhere to the holder. Because the magnetic attraction force is 1.8 to 2.2 times stronger than traditional designs, the phone will not easily fall off even if the vehicle experiences bumps during travel. Simultaneously, the magnetic interference suppression layer 4 significantly reduces magnetic interference to the phone's components inside the case, solving the technical problems of overheating and wireless charging / NFC signal failure caused by traditional magnetic rings. Furthermore, the overall thickness of the case 1 is controlled to within 0.8 μm. Through the optimized design of the flexible sealing strip 5 and the anti-slip textured layer, the phone maintains a slim and lightweight feel while improving grip comfort.

[0034] In summary, this utility model significantly improves the functionality and user experience of the mobile phone case through the combined design of the radial small magnet unit 3 and the magnetic interference suppression layer 4, the synergistic effect of the coupling enhancement core 6 and the magnetic flux adjustment piece 7, and the lightweight and anti-slip design of the shell 1.

[0035] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. For those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A magnetic gyro-aligning mobile phone case, characterized in that: The device includes a housing (1) with several positioning grooves on its inner wall for fixing internal components; a magnetic gyratory RX end is provided on the side of the housing (1) near the wireless charger, the magnetic gyratory RX end is composed of multiple radial small magnet units (3), each radial small magnet unit (3) is made by radiation orientation technology and arranged in a ring array; a wireless charging adapter structure is embedded inside the housing (1), the wireless charging adapter structure includes a conductive sheet (8), a shielding layer (9) and an insulating partition (10), the conductive sheet (8) and the shielding layer (9) are electrically isolated by the insulating partition (10); the radial small magnet units (3) The magnetic poles are distributed as an outer arc S pole (15) and an inner arc N pole (16), and the magnetic force direction is parallel to the thickness plane of the shell (1). A magnetic interference suppression layer (4) is provided on the back of the radial small magnet unit (3). The magnetic interference suppression layer (4) is made of a high magnetic permeability material and is fixed to the non-working surface of the radial small magnet unit (3) by adhesive bonding. A coupling enhancement core (6) is provided at the center of the magnetic cyclotron RX end. The coupling enhancement core (6) is a cylindrical structure made of soft magnetic material. Its height is consistent with the height of the radial small magnet unit (3), and a nano-scale magnetic permeable coating is uniformly coated on the outer surface of the coupling enhancement core (6).

2. The magnetic gyro-aligning mobile phone case according to claim 1, characterized in that: The gap between two adjacent radial small magnet units (3) is filled with a flexible sealing strip (5), which is made of silicone material and fixed inside the housing (1) by a pressing process.

3. A magnetic gyro-aligning mobile phone case according to claim 1, characterized in that: The edge of the magnetic interference suppression layer (4) extends to the side of the radial small magnet unit (3).

4. A magnetic gyro-aligning mobile phone case according to claim 1, characterized in that: The coupling enhancement core (6) has a groove (14) on its top, and a magnetic flux adjustment piece (7) is embedded in the groove (14). The magnetic flux adjustment piece (7) is made of amorphous alloy material and is fixed in the groove (14) by a snap-fit ​​method.

5. A magnetic gyro-aligning mobile phone case according to claim 1, characterized in that: The outer surface of the housing (1) is provided with an anti-slip texture layer, which is made of polyurethane material and formed by a spraying process.

6. A magnetic gyro-aligning mobile phone case according to claim 1, characterized in that: The conductive sheet (8) is circular or polygonal in shape, and the insulating partition (10) is made of polyimide film.

7. A magnetic gyro-aligning mobile phone case according to claim 1, characterized in that: The magnetic field line density between the outer arc S pole (15) and the inner arc N pole (16) of the radial small magnet unit (3) has been optimized.

8. A magnetic gyro-aligning mobile phone case according to claim 1, characterized in that: The inner wall of the housing (1) is provided with several positioning grooves for fixing internal components.

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