Sliding magnet array magnetic attraction device and mobile power supply, adapter and mobile terminal

Abstract

The application discloses a sliding magnet array magnetic attraction device, a mobile power supply, an adapter and a mobile terminal, and relates to the technical field of wireless charging. The sliding magnet array magnetic attraction device comprises a first magnetic attraction assembly, wherein the first magnetic attraction assembly is provided with at least two movable magnets which can move between a first position and a second position. When the movable magnets are in the first position, the sliding magnet array magnetic attraction device presents a first magnetic pole arrangement to the outside, so as to be attracted to a secondary electronic device with a first preset magnetic pole. When the movable magnets move to the second position, a second magnetic pole arrangement different from the first magnetic pole arrangement is presented, so as to be attracted to a secondary electronic device with a second preset magnetic pole. Through passive adaptive polarity adjustment, it is ensured that no matter how the magnetic pole arrangement of the external device is, the sliding magnet array magnetic attraction device can form stable magnetic attraction with the external device. The sliding magnet array magnetic attraction device overcomes the problem that magnetic repulsion is generated between electronic devices due to fixed and same magnetic pole arrangement, so that effective attraction and alignment cannot be achieved.

Description

Technical Field

[0001] This application relates to the field of wireless charging technology, and in particular to a sliding magnet array magnetic attraction device, a power supply, an adapter, and a mobile terminal. Background Technology

[0002] In the current field of wireless charging, magnetic alignment technology is typically used to ensure a stable connection and efficient energy transfer between the charging device and the mobile device being charged (such as a smartphone). For example, in ecosystems compliant with standards such as Qi2.2 or MagSafe, the mobile device is equipped with a magnetic ring with a specific magnetic pole arrangement, such as the south pole (S) facing outwards (radially outwards) and the north pole (N) facing inwards (radially inwards). To form a magnetic attraction with the mobile device, the accompanying wireless charging accessories, such as power banks (wireless charging banks, magnetic charging banks, and clip-on charging banks) or adapters, must use a magnetic ring configuration with opposite magnetic poles (i.e., north pole (N) facing outwards and south pole (S) facing inwards). This design, based on the principle of "opposite poles attract," effectively fixes the mobile device in the optimal charging position.

[0003] However, this fixed magnetic pole configuration exposes its inherent limitations when expanding charging scenarios. Problems arise when users want to use the same adapter to wirelessly charge a power bank. Since both the adapter and the power bank are designed to pair with the same mobile device, their magnetic rings have identical magnetic pole distributions (e.g., both with the N pole facing outwards and the S pole facing inwards). Therefore, when the power bank and adapter are close to each other, their magnetic fields generate a strong repulsive force due to "like poles repulsion." This repulsive force hinders effective alignment and physical attraction between the two, leading to severe misalignment of the wireless charging coils, significantly reducing charging efficiency, or even preventing charging altogether. This incompatibility issue between charging accessories caused by magnetic pole conflict limits the interoperability of the product ecosystem and causes inconvenience to users. Therefore, overcoming the repulsion problem caused by identical magnetic pole arrangements between accessories in the existing charging ecosystem has become a pressing technical challenge. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a sliding magnet array magnetic attraction device, a power bank, an adapter, and a mobile terminal, which can solve the magnetic pole compatibility conflict problem between the charging adapter and the mobile terminal and the power bank.

[0005] In a first aspect, embodiments of this application provide a sliding magnet array magnetic attraction device.

[0006] According to an embodiment of this application, a sliding magnet array magnetic attraction device is used to provide a detachable connection with an external secondary electronic device, wherein the secondary electronic device is provided with a secondary magnetic attractor with fixed magnetic poles along a second magnetic attraction path. The embodiment of the sliding magnet array magnetic attraction device includes: a first magnetic attraction assembly comprising at least two movable magnets movable between a first position and a second position; wherein, when the movable magnet is in the first position, it presents a first magnetic pole arrangement at a position corresponding to the secondary magnetic attractor, for attracting the secondary magnetic attractor having a first preset magnetic pole; when the movable magnet is in the second position, it presents a second magnetic pole arrangement at a position corresponding to the secondary magnetic attractor, for attracting the secondary magnetic attractor having a second preset magnetic pole.

[0007] The sliding magnet array magnetic attraction device according to the embodiments of this application has at least the following beneficial effects: by moving the movable magnet to different positions, the overall magnetic pole arrangement presented by the sliding magnet array magnetic attraction device can be changed. When it is necessary to connect with a secondary electronic device (e.g., a mobile device) having a first magnetic pole arrangement, the movable magnet is moved to the first position, at which point the sliding magnet array magnetic attraction device presents a magnetic pole arrangement opposite to that of the secondary electronic device, thereby achieving mutual attraction and alignment. When it is necessary to connect with a secondary electronic device (e.g., a power bank or adapter) having a second magnetic pole arrangement, the movable magnet is moved to the second position, at which point the sliding magnet array magnetic attraction device presents a magnetic pole arrangement opposite to that of the second secondary electronic device, similarly achieving reliable attraction and alignment. In this way, the sliding magnet array magnetic attraction device of the embodiments can flexibly change its own magnetic pole characteristics by simply changing the position of the internal movable magnet, thereby solving the compatibility problem caused by fixed magnetic poles in the prior art.

[0008] According to some embodiments of this application, the movable magnet is arranged along a preset first magnetic attraction path, the shape of the first magnetic attraction path is adapted to the shape of the second magnetic attraction path, and the moving direction of the movable magnet is along the normal direction of the first magnetic attraction path at the center of the movable magnet.

[0009] According to some embodiments of this application, each of the movable magnets includes at least three adjacent magnet sectors arranged along the normal direction of the first magnetic attraction path, and the magnetic poles of adjacent magnet sectors are different.

[0010] According to some embodiments of this application, each movable magnet includes three magnetic sectors; the first magnetic attraction path is circular; the first magnetic poles are arranged such that the S poles are radially inward along the first magnetic attraction path and the N poles are radially outward along the first magnetic attraction path; the second magnetic poles are arranged such that the N poles are radially inward along the first magnetic attraction path and the S poles are radially outward along the first magnetic attraction path.

[0011] According to some embodiments of this application, the magnet sectors are arranged radially outward along the first magnetic attraction path as a first sector, a second sector, and a third sector, wherein the magnetic poles of the first sector, the second sector, and the third sector are S pole, N pole, and S pole, respectively; the first position is radially away from the center of the first magnetic attraction path relative to the second position; wherein, when the movable magnet is in the first position, the first sector and the second sector correspond to the position of the secondary magnetic attraction member to form the first magnetic pole arrangement; when the movable magnet is in the second position, the second sector and the third sector correspond to the position of the secondary magnetic attraction member to form the second magnetic pole arrangement.

[0012] According to some embodiments of this application, the magnet sectors are arranged radially outward along the first magnetic attraction path as a first sector, a second sector, and a third sector, wherein the magnetic poles of the first sector, the second sector, and the third sector are N pole, S pole, and N pole, respectively; the first position is radially closer to the center of the first magnetic attraction path relative to the second position; wherein, when the movable magnet is in the first position, the second sector and the third sector correspond to the position of the secondary magnetic attraction member to form the first magnetic pole arrangement; when the movable magnet is in the second position, the first sector and the second sector correspond to the position of the secondary magnetic attraction member to form the second magnetic pole arrangement.

[0013] According to some embodiments of this application, the first magnetic attraction component further includes a non-magnetic support member adapted to the shape of the first magnetic attraction path. The non-magnetic support member has a sealed accommodating cavity corresponding to each of the movable magnets, and the movable magnets are slidably accommodated in the accommodating cavity.

[0014] Secondly, embodiments of this application provide a mobile power supply, comprising: a power supply housing; a power module disposed within a cavity formed by the housing; a wireless charging coil electrically connected to the power module; and a sliding magnet array magnetic attraction device as described in any embodiment of the first aspect; wherein the sliding magnet array magnetic attraction device and the wireless charging coil are coaxially disposed on the power supply housing.

[0015] Thirdly, embodiments of this application provide an adapter, including: an adapter housing; a wireless charging coil; and a sliding magnet array magnetic attraction device as described in any embodiment of the first aspect; wherein the sliding magnet array magnetic attraction device and the wireless charging coil are coaxially disposed on the adapter housing.

[0016] Fourthly, embodiments of this application provide a mobile terminal, including: a terminal housing; a wireless charging coil; and a sliding magnet array magnetic attraction device as described in any embodiment of the first aspect; wherein the sliding magnet array magnetic attraction device and the wireless charging coil are coaxially disposed on the terminal housing. Attached Figure Description

[0017] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the sliding magnet array magnetic attraction device in the embodiment; Figure 2 This is a schematic diagram of the structure of a sliding magnet array magnetic attraction device according to another embodiment; Figure 3 This is a schematic diagram of the secondary magnetic chuck component in an embodiment; Figure 4 This is a schematic diagram of another secondary magnetic chuck component in the embodiment; Figure 5 Example Figure 1 In-sliding magnet array magnetic attraction device and Figure 3 A schematic diagram of the structure during the adsorption of the secondary magnetic accumulator; Figure 6 Example Figure 1 In-sliding magnet array magnetic attraction device and Figure 4 A schematic diagram of the structure during the adsorption of the secondary magnetic accumulator; Figure 7 Example Figure 2 In-sliding magnet array magnetic attraction device and Figure 3 A schematic diagram of the structure during the adsorption of the secondary magnetic accumulator; Figure 8 Example Figure 2 In-sliding magnet array magnetic attraction device and Figure 4 A schematic diagram of the structure during the adsorption of the secondary magnetic accumulator; Figure label: First magnetic attraction component 100; movable magnet 110; first sector 111; second sector 112; third sector 113; accommodating cavity 120; secondary magnetic attraction component 200. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0022] In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] In a first aspect, embodiments of this application provide a sliding magnet array magnetic attraction device.

[0024] The sliding magnet array magnetic attraction device can be widely used in consumer electronics products requiring detachable magnetic connections, such as power banks, wireless chargers, mobile terminals, tablets, laptops, or their protective cases. For example, the sliding magnet array magnetic attraction device can be mounted on an adapter for detachable attraction and connection to an external secondary electronic device (e.g., a mobile phone and a wireless charger). This secondary electronic device has several secondary magnetic attractors 200 with fixed magnetic poles arranged along a predetermined second magnetic path (e.g., a circular path on a mobile phone). Typically, as... Figure 3 and Figure 4As shown, the secondary magnetic attractor 200 is composed of one or more permanent magnets, whose N and S poles are oriented in a fixed manner. For example, on a circular magnetic attractor path, the N poles of all magnets are uniformly oriented inwards and the S poles are uniformly oriented outwards, or vice versa.

[0025] like Figure 1 and Figure 2 As shown, the sliding magnet array magnetic attraction device of the embodiment mainly includes a first magnetic attraction component 100. This first magnetic attraction component 100 includes multiple (e.g., four) movable magnets 110, which are arranged on a preset, for example, annular, "first magnetic attraction path". The shape and size of this first magnetic attraction path are matched to a "second magnetic attraction path" on the secondary electronic device to be attracted. The secondary electronic device (e.g., a mobile phone) is provided with a secondary magnetic attraction element 200 (e.g., a magnetic ring) with fixed magnetic poles.

[0026] The core of the sliding magnet array magnetic attraction device in this embodiment is that the movable magnet 110 is not fixed, but can move between at least two preset positions (a first position and a second position). This movement causes a change in the overall magnetic pole arrangement presented by the first magnetic attraction component 100 to external secondary electronic devices. For example, the working principle of the sliding magnet array magnetic attraction device in this embodiment is as follows: In one example scenario, the sliding magnet array magnetic attraction device of the embodiment needs to be coupled to a secondary electronic device (e.g., a mobile phone) having a magnetic ring with a radially inward N pole and an outward S pole, such as... Figure 3 The device is then attracted to the phone. At this time, the movable magnets 110 within the first magnetic assembly 100 move to the "first position." In the first position, these movable magnets 110, at positions corresponding to the phone's magnetic ring, collectively exhibit a "first magnetic pole arrangement" (i.e., radially inward S pole and outward N pole). Due to the opposite magnetic poles, the device can firmly attach to the phone, ensuring precise alignment of the wireless charging coil.

[0027] In another example scenario, the sliding magnet array magnetic attraction device needs to be connected to another secondary electronic device (e.g., a power bank) with a magnetic ring having a radially inward S pole and an outward N pole, such as... Figure 4 The device is then attracted to the power source. At this time, the movable magnets 110 inside the first magnetic attraction assembly 100 move to the "second position". In the second position, these movable magnets 110, at positions corresponding to the magnetic ring of the power source, collectively present a "second magnetic pole arrangement" (i.e., radially inward N pole and outward S pole). Similarly, because the magnetic poles are opposite, the device can also be firmly attracted to the power source.

[0028] Through the above design, the sliding magnet array magnetic attraction device of this embodiment achieves flexible conversion of the externally presented magnetic poles by switching the internal movable magnet 110 between a first position and a second position. Unlike existing technologies, it no longer has a single, fixed magnetic pole, but can "deform" to adapt to external devices with different magnetic pole standards. A single device can achieve magnetic attraction with two different devices whose magnetic poles originally repel each other (e.g., a mobile phone and a power bank designed for that phone), thus solving the compatibility problem in existing technologies and achieving wider applicability.

[0029] Understandably, in the preferred embodiment, the movable magnet 110 moves along the normal direction at the center of the first magnetic attraction path. Taking a common circular magnetic attraction path as an example, its normal direction is radial. For example, each movable magnet 110 is constrained within a radially arranged slide rail or accommodating cavity 120 and can slide within this cavity towards or away from the center. It is through this radial switching of inward and outward positions that the movable magnet 110, composed of multiple magnetic sectors, can selectively align different magnetic sectors with the external secondary magnetic attraction member 200. For example, when the movable magnet 110 slides inward, its two outer magnetic sectors align with the secondary magnetic attraction member 200; when the movable magnet 110 slides outward, its two inner magnetic sectors align with the secondary magnetic attraction member 200. Since the magnetic poles of these sectors are pre-set, this simple radial movement enables effective switching between the first and second magnetic pole arrangements presented externally. The radial movement design has a simple structure and a short stroke, enabling it to quickly and reliably complete magnetic pole switching.

[0030] Understandably, in some embodiments, each movable magnet 110 is not a single-pole magnetic block, but a composite consisting of at least three independent "magnetic sectors". For example... Figure 1 and Figure 2 As shown, these magnetic sectors are arranged closely adjacent to each other along the normal direction of the first magnetic attraction path (which is the radial direction for a common circular path), and the magnetic poles of any two adjacent magnetic sectors are opposite. This movable magnet 110 forms a sequence of alternating magnetic poles along the radial direction, such as a stacked structure of South-North-South (SNS) or North-South-North (NSN). It is this alternating magnetic pole arrangement that provides the basis for the magnetic pole switching function. When the movable magnet 110, composed of multiple sectors, slides radially as a whole, it can selectively align different sector combinations with the external secondary magnetic attractor 200, thus exhibiting completely opposite magnetic pole characteristics and realizing the magnetic pole switching function of the first magnetic attractor assembly 100.

[0031] Understandably, the key to the sliding magnet array magnetic attraction device in this embodiment lies in achieving the switching between two external magnetic pole arrangements: one is a "first magnetic pole arrangement," where the radially inward direction is the S pole and the radially outward direction is the N pole, used to attract devices such as mobile phones (the magnetic poles of the magnetic ring on the mobile phone end are the radially inward N pole and the radially outward S pole, such as...). Figure 3 (As shown); another type is the "second magnetic pole arrangement," where the radially inward-facing pole is the N pole and the radially outward-facing pole is the S pole, used to attract devices such as power banks (the magnetic poles of the power bank's magnetic ring have the radially inward-facing S pole and the radially outward-facing N pole, such as...). Figure 4 (As shown). The following uses mobile phones and power banks as examples of secondary electronic devices to explain the structure and movement of the movable magnet 110.

[0032] In one embodiment, the three magnetic sectors of the movable magnet 110 are arranged radially from the inside out, such as... Figure 2 As shown, its magnetic pole arrangement is as follows: first sector 111 (S pole), second sector 112 (N pole), and third sector 113 (S pole), i.e., an "SNS" structure. When it needs to be attracted to a mobile phone (i.e., when the "first magnetic pole arrangement" S-in / N-out is required): the movable magnet 110 is moved to the radially outward "first position". Figure 5 As shown, in this position, only the innermost first sector 111 (S pole) and the middle second sector 112 (N pole) correspond radially to the magnetic ring of the external mobile phone. At this time, the effective magnetic poles presented by the sliding magnet array magnetic attraction device of this embodiment are S-inward and N-outward, forming a strong attraction with the N-inward and S-outward magnetic ring of the mobile phone. The outermost third sector 113 (S pole) does not generate a major magnetic force because its radial position exceeds the corresponding range. When it needs to be attracted to a power bank (i.e., when a "second magnetic pole arrangement" N-in / S-out is required): the movable magnet 110 is moved to the radially inward "second position". Figure 6 As shown, at this position, the second sector 112 (N pole) in the middle and the outermost third sector 113 (S pole) correspond radially to the magnetic ring of the external mobile power supply. At this time, the effective magnetic poles presented externally by the sliding magnet array magnetic attraction device of the embodiment are N on the inside and S on the outside, forming a strong attraction with the S on the inside and N on the outside of the mobile power supply magnetic ring. The innermost first sector 111 (S pole), due to its position being too far inward, does not generate a major magnetic force.

[0033] In another embodiment, the three magnetic sectors are arranged radially from the inside out, with their magnetic poles arranged sequentially as follows: first sector 111 (N pole), second sector 112 (S pole), and third sector 113 (N pole), i.e., an "NSN" structure. When it needs to be attracted to a mobile phone (i.e., when the "first magnetic pole arrangement" S-in / N-out is required): The process is reversed from the previous method, at which point the movable magnet 110 is moved to a radially inward "first position." Figure 7 As shown, in this position, the middle second sector 112 (S pole) and the outermost third sector 113 (N pole) correspond to the magnetic ring of the external mobile phone, thus presenting an inner S and outer N magnetic pole arrangement, achieving a firm attachment to the mobile phone. When it is necessary to attach to a power bank (i.e., to present a "second magnetic pole arrangement" N-in / S-out): the movable magnet 110 is moved to the radially outward "second position". Figure 8 As shown, at this position, the innermost first sector 111 (N pole) and the middle second sector 112 (S pole) correspond to the magnetic ring of the external power supply, thus presenting an inner N and outer S magnetic pole arrangement, achieving a firm attraction with the power supply.

[0034] It is worth noting that the movement of the movable magnet 110 requires no additional human intervention (such as manually toggling a switch) or a dedicated drive mechanism (such as a micro motor, electromagnet, etc.). Its movement is automatically accomplished under the influence of an external magnetic field. For example, the movable magnet 110 is designed to slide freely and with low resistance within the accommodating cavity 120. When the sliding magnet array magnetic attraction device of the embodiment is not near any external magnet, these movable magnets 110 may be in any position or an intermediate equilibrium position. However, when the sliding magnet array magnetic attraction device of the embodiment is near a secondary electronic device (e.g., a mobile phone or a power bank), the external magnetic field generated by the magnetic attraction component of the secondary electronic device itself will penetrate the device and act on the movable magnet 110 inside. According to the basic physical principle that like poles repel and unlike poles attract between magnets, this external magnetic field will drive the entire movable magnet 110 to automatically slide towards a stable position where it can form the strongest attractive force with the external magnetic field (i.e., the lowest system magnetic energy).

[0035] Understandably, in some embodiments, the first magnetic attraction component 100 further includes a non-magnetic carrier. This non-magnetic carrier is the skeleton of the entire sliding magnet array magnetic attraction device, responsible for organically integrating all the dispersed movable magnets 110 together. Its overall shape is adapted to a preset first magnetic attraction path. In a preferred embodiment, it is a flat, annular component, typically made of engineering plastic through injection molding, or machined from non-magnetic metals such as aluminum alloy. Choosing a non-magnetic material ensures that the carrier itself does not interfere with the magnetic field of the internal movable magnets 110, thereby guaranteeing the sensitivity and effectiveness of the magnetic pole switching function. Inside the carrier, there are multiple (e.g., four) sealed cavities 120 corresponding one-to-one with each movable magnet 110. Each cavity 120 is an independent, closed internal space, its shape and size precisely designed as a groove or channel. Each movable magnet 110 is "encapsulated" within a cavity 120. There is a tiny gap between the movable magnet 110 and the inner wall of the accommodating cavity 120, allowing it to be slidably accommodated therein.

[0036] Secondly, embodiments of this application provide a mobile power supply.

[0037] The portable power bank of this embodiment includes a power housing, a power module disposed within the power housing, and a wireless charging coil for wireless charging (discharging). Its key improvement lies in that the portable power bank of this embodiment further includes a sliding magnet array magnetic attraction device according to any embodiment of the first aspect, and the sliding magnet array magnetic attraction device is coaxially disposed on the power housing with the wireless charging coil to ensure precise alignment with external devices during charging (discharging).

[0038] The mobile power bank breaks the limitation of fixed magnetic poles, enabling seamless magnetic attraction and alignment with both "devices that need to charge it (mobile terminals)" and "devices that need to charge it (adapters)," thus enhancing the convenience and user experience of the entire wireless charging ecosystem.

[0039] Thirdly, embodiments of this application provide an adapter.

[0040] The adapter includes an adapter housing, a wireless charging coil, and a sliding magnet array magnetic attraction device according to any one of the first aspects. The sliding magnet array magnetic attraction device is coaxially disposed on the adapter housing with the wireless charging coil to ensure precise alignment with external devices during discharge.

[0041] The adapter can actively adapt to any device being charged. Whether it's a mainstream standard-compliant phone (such as Qi2 / MagSafe), a power bank designed with the same magnetic poles for phone compatibility, or a future device with opposite magnetic poles, reliable magnetic attachment is achieved. This allows one adapter to be used across the entire product ecosystem, eliminating the need for users to prepare separate magnetic chargers for different devices, significantly reducing the number of accessories users need to carry and simplifying the usage logic.

[0042] Fourthly, embodiments of this application provide a mobile terminal.

[0043] The mobile terminal of the embodiment includes a terminal housing, a wireless charging coil, and a sliding magnet array magnetic attraction device according to any embodiment of the first aspect. The sliding magnet array magnetic attraction device is coaxially disposed on the terminal housing with the wireless charging coil to ensure accurate alignment with external devices during charging.

[0044] The mobile terminal in this embodiment is not limited to any single magnetic accessory standard. Whether it's an adapter with a standard magnetic ring or a third-party designed creative accessory with potentially different magnetic poles, magnetic alignment can be achieved. This mobile terminal liberates the accessory ecosystem, enabling it to connect to and use a far wider range of magnetic devices than currently available, bringing more expansion possibilities while ensuring compatibility with future magnetic standards, thus possessing better "future adaptability."

[0045] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features described in the embodiments of this application can be combined with each other.

Claims

1. A sliding magnet array magnetic attraction device, characterized in that, For providing a detachable connection to an external secondary electronic device, wherein the secondary electronic device is provided with a secondary magnetically fixed member along a second magnetic attraction path, comprising: The first magnetic attraction assembly includes at least two movable magnets that can move between a first position and a second position; Specifically, when the movable magnet is in the first position, it presents a first magnetic pole arrangement at the position corresponding to the secondary magnetic attractor, so as to attract the secondary magnetic attractor having a first preset magnetic pole; when the movable magnet is in the second position, it presents a second magnetic pole arrangement at the position corresponding to the secondary magnetic attractor, so as to attract the secondary magnetic attractor having a second preset magnetic pole.

2. The magnetic attraction device for a sliding magnet array according to claim 1, characterized in that, The movable magnet is arranged along a preset first magnetic attraction path, the shape of the first magnetic attraction path is adapted to the shape of the second magnetic attraction path, and the moving direction of the movable magnet is along the normal direction of the first magnetic attraction path at the center of the movable magnet.

3. The sliding magnet array magnetic attraction device according to claim 2, characterized in that, Each of the movable magnets includes at least three adjacent magnetic sectors arranged along the normal direction of the first magnetic attraction path, with adjacent magnetic sectors having different magnetic poles.

4. The sliding magnet array magnetic attraction device according to claim 3, characterized in that, Each of the movable magnets includes 3 magnet sectors; The first magnetic attraction path is circular; The first magnetic poles are arranged such that the S pole faces inward along the first magnetic attraction path and the N pole faces outward along the first magnetic attraction path. The second magnetic poles are arranged such that the N pole faces inward along the radial direction of the first magnetic attraction path, and the S pole faces outward along the radial direction of the first magnetic attraction path.

5. The sliding magnet array magnetic attraction device according to claim 4, characterized in that, The magnet sectors are arranged radially outward along the first magnetic attraction path as a first sector, a second sector, and a third sector, wherein the magnetic poles of the first sector, the second sector, and the third sector are the S pole, the N pole, and the S pole, respectively. The first position is radially away from the center of the first magnetic attraction path relative to the second position; Specifically, when the movable magnet is in the first position, the first sector and the second sector correspond to the position of the secondary magnetic attractor to form the first magnetic pole arrangement; when the movable magnet is in the second position, the second sector and the third sector correspond to the position of the secondary magnetic attractor to form the second magnetic pole arrangement.

6. The magnetic attraction device for a sliding magnet array according to claim 4, characterized in that, The magnet sectors are arranged radially outward along the first magnetic attraction path as a first sector, a second sector, and a third sector, wherein the magnetic poles of the first sector, the second sector, and the third sector are N pole, S pole, and N pole, respectively. The first position is radially closer to the center of the first magnetic attraction path relative to the second position; Specifically, when the movable magnet is in the first position, the second sector and the third sector correspond to the position of the secondary magnetic attractor to form the first magnetic pole arrangement; when the movable magnet is in the second position, the first sector and the second sector correspond to the position of the secondary magnetic attractor to form the second magnetic pole arrangement.

7. The sliding magnet array magnetic attraction device according to any one of claims 2-6, characterized in that, The first magnetic attraction component further includes a non-magnetic support member whose shape is adapted to the first magnetic attraction path. The non-magnetic support member has a sealed accommodating cavity that corresponds one-to-one with the movable magnet. The movable magnet is slidably accommodated in the accommodating cavity.

8. A portable power bank, characterized in that, include: Power supply housing; The power module is disposed within the cavity formed by the power housing; A wireless charging coil is electrically connected to the power module; The sliding magnet array magnetic attraction device according to any one of claims 1-7; The sliding magnet array magnetic attraction device and the wireless charging coil are coaxially mounted on the power supply housing.

9. An adapter, characterized in that, include: Adapter housing; Wireless charging coil; The sliding magnet array magnetic attraction device according to any one of claims 1-7; The sliding magnet array magnetic attraction device and the wireless charging coil are coaxially mounted on the adapter housing.

10. A mobile terminal, characterized in that, include: Terminal casing; Wireless charging coil; The sliding magnet array magnetic attraction device according to any one of claims 1-7; The sliding magnet array magnetic attraction device and the wireless charging coil are coaxially mounted on the terminal housing.

Images