Wireless charging permanent magnet auxiliary positioning adsorption system

Abstract

The utility model relates to the technical field of charging accessories, in particular to a wireless charging permanent magnet auxiliary positioning adsorption system, which comprises a transmitting end and a receiving end, the transmitting end comprises a first sealing layer, a positioning adsorption layer and a second sealing layer which are coaxially arranged, the first sealing layer is connected to the inner wall of the positioning adsorption layer, and the second sealing layer is connected to the outer wall of the positioning adsorption layer. The second sealing layer is connected to the outer wall of the positioning adsorption layer, and the positioning adsorption layer is coated with the first sealing layer and the second sealing layer; the receiving end is connected to the transmitting end and is provided with a packaging surface facing the transmitting end, and the packaging surface, the first sealing layer, the positioning adsorption layer and the second sealing layer jointly define a sealing part. The utility model aims to reduce the magnetic flux leakage of the adsorption system so as to improve the transmission efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of charging accessories, and particularly relates to a wireless charging permanent magnet assisted positioning and adsorption system. Background Art

[0002] With the rapid development of intelligent mobile devices, especially the wide popularization of smart phones in society, people's living habits have been greatly changed. At the same time, with the improvement of the computing power of the devices, the scenarios that can be used are continuously expanded. While bringing convenience to people, the increasing requirements for the operating ability of the devices inevitably affect the device power consumption. Convenient charging is the primary problem to be solved. The existing wired charging is prone to damage and inconvenient to use because the interface needs to be repeatedly plugged and unplugged.

[0003] In the related art, in order to facilitate docking, a permanent magnet adsorption structure is adopted for wireless charging. The transmitting end and the receiving end are both permanent magnet structures with concentric circular plane dipoles. The soft magnetic core of the wireless charging transmitting end is located in the center of the circular permanent magnet. Since consumer electronic products are usually small in size, the distance between the soft magnetic core and the circular permanent magnet is small. In order to ensure positioning, the strength of the permanent magnet material needs to be high, and there is a lot of static magnetic field leakage, which in turn affects the soft magnetic core and reduces the transmission efficiency. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a wireless charging permanent magnet assisted positioning and adsorption system, aiming to reduce the magnetic leakage of the adsorption system and improve the transmission efficiency.

[0005] To achieve the above purpose, a wireless charging permanent magnet assisted positioning and adsorption system proposed by the utility model includes a transmitting end and a receiving end:

[0006] The transmitting end includes a first sealing layer, a positioning and adsorption layer and a second sealing layer which are coaxially arranged. The first sealing layer is connected to the inner wall of the positioning and adsorption layer, the second sealing layer is connected to the outer wall of the positioning and adsorption layer, and the first sealing layer and the second sealing layer cover the positioning and adsorption layer; and

[0007] The receiving end is connected to the transmitting end and is provided with a packaging surface facing the transmitting end. The packaging surface, the first sealing layer, the positioning and adsorption layer and the second sealing layer jointly enclose a sealing part.

[0008] In an embodiment of the present application, the first sealing layer and the second sealing layer have the same height and the same bottom horizontal height. The height of the positioning and adsorption layer is less than that of the first sealing layer and the second sealing layer, and both ends of the first sealing layer cover both ends of the positioning and adsorption layer.

[0009] In an embodiment of the present application, guide grooves are provided on the end faces of the first sealing layer and the second sealing layer facing the receiving end, and the guide grooves are connected to the ends of the positioning and adsorbing layer.

[0010] In an embodiment of the present application, there are multiple groups of the guide grooves, and the multiple groups of guide grooves are circumferentially and evenly spaced at the ends of the first sealing layer and the second sealing layer. A connection end is formed by clamping between adjacent guide grooves at the ends of the first sealing layer and the second sealing layer.

[0011] In an embodiment of the present application, the positioning and adsorbing layer is a permanent magnet material, and the first sealing layer, the second sealing layer, and the receiving end are all made of soft magnetic materials.

[0012] In an embodiment of the present application, the magnetization direction of the transmitting end is along the direction from the first sealing layer to the second sealing layer, and the inner wall of the receiving end is arranged facing the magnetization direction of the transmitting end.

[0013] The technical solution of the present utility model divides the transmitting end into a first sealing layer, a positioning and adsorbing layer, and a second sealing layer structurally. Only the positioning and adsorbing layer is a permanent magnet material with a high magnetic energy product for positioning and adsorption. The first sealing layer and the second sealing layer use soft magnetic materials to sandwich the permanent magnet material. The first sealing layer and the second sealing layer completely cover the positioning and adsorbing layer to avoid magnetic leakage from both sides of the transmitting end. The settings of the first sealing layer and the second sealing layer can guide the direction of the concentrated magnetic field, making the magnetic field concentrate at the position facing the receiving end, so as to improve the positioning ability and maintain high power and high efficiency of wireless charging. The receiving end is arranged facing the transmitting end, and the width of the encapsulation surface of the receiving end can at least completely enclose the first sealing layer to the second sealing layer, further reducing the occurrence of magnetic leakage. And as the first sealing layer, the second sealing layer, the positioning and adsorbing layer, and the receiving end enclose each other to form a sealed part, the magnetic field is enhanced within the sealed part, which can effectively improve the performance of the entire positioning and adsorbing system. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the wireless charging permanent magnet assisted positioning and adsorbing system of the present utility model;

[0016] Figure 2 It is a cross-sectional view of an embodiment of the wireless charging permanent magnet assisted positioning and adsorbing system of the present utility model.

[0017] Explanation of the reference numerals in the drawings:

[0018] 1. Transmitting end; 11. First sealing layer; 12. Guide groove; 13. Connection end; 14. Positioning and adsorption layer; 15. Second sealing layer; 2. Receiving end; 21. Encapsulation surface; 3. Sealing part.

[0019] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0020] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] Refer to Figures 1 to 2 , in an implementation manner of the present utility model, a wireless charging permanent magnet assisted positioning and adsorption system is proposed, which includes a transmitting end 1 and a receiving end 2. The transmitting end 1 includes a first sealing layer 11, a positioning and adsorption layer 14 and a second sealing layer 15 arranged coaxially. The first sealing layer 11 is connected to the inner wall of the positioning and adsorption layer 14, and the second sealing layer 15 is connected to the outer wall of the positioning and adsorption layer 14. The first sealing layer 11 and the second sealing layer 15 cover the positioning and adsorption layer 14; the receiving end 2 is connected to the transmitting end 1 and is provided with an encapsulation surface 21 facing the transmitting end 1. The encapsulation surface 21, the first sealing layer 11, the positioning and adsorption layer 14 and the second sealing layer 15 jointly enclose a sealing part 3.

[0022] In a wireless charging permanent magnet assisted positioning and adsorption system of the present application, the transmitting end 1 is structurally divided into a first sealing layer 11, a positioning and adsorption layer 14 and a second sealing layer 15. Only the positioning and adsorption layer 14 is a permanent magnet material with high magnetic energy product for positioning and adsorption. The first sealing layer 11 and the second sealing layer 15 use soft magnetic materials to sandwich the permanent magnet material. The first sealing layer 11 and the second sealing layer 15 completely cover the positioning and adsorption layer 14 to prevent magnetic leakage from both sides of the transmitting end 1. The first sealing layer 11 and the second sealing layer 15 can guide the direction of the concentrated magnetic field, so that the magnetic field is concentrated at the position facing the receiving end 2, so as to improve the positioning ability, maintain high power and high efficiency of wireless charging. The receiving end 2 is arranged facing the transmitting end 1. The width of the encapsulation surface 21 of the receiving end 2 can at least completely enclose the first sealing layer 11 to the second sealing layer 15, further reducing the occurrence of magnetic leakage. And as the first sealing layer 11, the second sealing layer 15, the positioning and adsorption layer 14 and the receiving end 2 jointly enclose a sealing part 3, the magnetic field is enhanced in the sealing part 3, which can effectively improve the performance of the entire positioning and adsorption system.

[0023] Refer to in combinationFigures 1 to 2 In an embodiment of the present application, the first sealing layer 11 and the second sealing layer 15 have the same height and the same bottom horizontal height. The height of the positioning and adsorption layer 14 is less than that of the first sealing layer 11 and the second sealing layer 15, and both ends of the first sealing layer 11 cover both ends of the positioning and adsorption layer 14.

[0024] In a wireless charging permanent magnet assisted positioning and adsorption system of the present application, the first sealing layer 11 and the second sealing layer 15 have the same height and the same bottom horizontal height. The two sets of sealing layers are completely identical except for the diameter. Both ends of the positioning and adsorption layer 14 are covered by the sealing layers inside. This structure can more efficiently optimize the sealing performance of the entire adsorption system, reduce the possibility of magnetic leakage, and the two sealing layers that are completely identical except for the diameter can better guide the magnetic field, improve the wireless charging power, and improve the positioning effect of the adsorption system.

[0025] Referring to Figures 1 to 2 In an embodiment of the present application, a guiding groove 12 is formed on the end surface of the first sealing layer 11 and the second sealing layer 15 facing the receiving end 2, and the guiding groove 12 is connected to the end of the positioning and adsorption layer 14.

[0026] In a wireless charging permanent magnet assisted positioning and adsorption system of the present application, a guiding groove 12 is formed on the end surface of the first sealing layer 11 and the second sealing layer 15 facing the receiving end 2. The bottom end of the guiding groove 12 still surrounds the positioning and adsorption layer 14, and the formation of the guiding groove 12 can concentrate the magnetic field at both ends of the guiding groove 12, strengthen the local magnetic field, and improve the positioning and adsorption effect.

[0027] Referring to Figure 1 In an embodiment of the present application, multiple groups of guiding grooves 12 are provided. The multiple groups of guiding grooves 12 are circumferentially and evenly spaced at the ends of the first sealing layer 11 and the second sealing layer 15, and a connecting end 13 is formed between adjacent guiding grooves 12 at the ends of the first sealing layer 11 and the second sealing layer 15.

[0028] In a wireless charging permanent magnet assisted positioning and adsorption system of the present application, multiple groups of guiding grooves 12 are provided and are evenly arranged, so that stronger magnetic attraction is concentrated at the connecting end 13 of the sealing layer, which is more conducive to the docking and adsorption of the transmitting end 1 and the receiving end 2, and improves the overall performance of the entire device.

[0029] Referring to Figure 1 In an embodiment of the present application, the positioning and adsorption layer 14 is made of a permanent magnet material, and the first sealing layer 11, the second sealing layer 15, and the receiving end 2 are all made of soft magnetic materials.

[0030] In a wireless charging permanent magnet assisted positioning and adsorption system of the present application, the positioning and adsorption layer 14 is made of a permanent magnet material, and both the sealing layer and the receiving end 2 are made of soft magnetic materials. The sealing layer can effectively clamp the entire positioning and adsorption layer 14 to avoid magnetic leakage of the positioning and adsorption layer 14. The receiving end 2 also uses soft magnetic materials, which can effectively cooperate with the sealing layer to concentrate the magnetic field and improve the performance of the entire device. Generally, the materials used for permanent magnets can be: sintered ferrites, neodymium iron boron, samarium cobalt, etc.; or bonded permanent magnet ferrites; neodymium iron boron; samarium iron nitride or a mixture of these materials; the adhesives can be: rubber, nylon, PPS, epoxy resin, etc.; and they are formed by hot extrusion or injection molding processes; the soft magnetic materials in the structure can be: low carbon steel, ferrite or martensitic stainless steel, various iron nickel / iron cobalt alloys, iron-based amorphous materials, etc. Through these materials and structures, magnetic leakage can be effectively reduced and the transmission efficiency of wireless charging can be improved.

[0031] Referring to Figures 1 to 2 , in an embodiment of the present application, the magnetization direction of the transmitting end 1 is along the first sealing layer 11 towards the second sealing layer 15, and the inner wall surface of the receiving end 2 is arranged facing the magnetization direction of the transmitting end 1.

[0032] In a wireless charging permanent magnet assisted positioning and adsorption system of the present application, the magnetization direction of the transmitting end 1 is along the first sealing layer 11 towards the second sealing layer 15. It can be considered that when the receiving end 2 is connected to the sealing layer, the inner wall of this soft magnetic material is in the magnetic field direction, which can effectively prevent magnetic leakage, reduce energy waste at the same time, and reduce the heating phenomenon during the use of wireless charging.

[0033] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A wireless charging permanent magnet assisted positioning adsorption system, characterized in that: include: A transmitting end, the transmitting end comprising a first sealing layer, a positioning adsorption layer and a second sealing layer which are coaxially arranged, the first sealing layer being connected to the inner wall of the positioning adsorption layer, the second sealing layer being connected to the outer wall of the positioning adsorption layer, and the first sealing layer and the second sealing layer being coated on the positioning adsorption layer; and The receiving end is connected to the transmitting end and is provided with a packaging surface facing the transmitting end. The packaging surface, the first sealing layer, the positioning adsorption layer and the second sealing layer are jointly enclosed to form a sealing part.

2. According to claim 1, a wireless charging permanent magnet assisted positioning adsorption system is characterized in that: The first sealing layer and the second sealing layer have the same height and the same bottom level. The positioning adsorption layer has a height smaller than the first sealing layer and the second sealing layer. The two ends of the first sealing layer are covered on the two ends of the positioning adsorption layer.

3. A wireless charging permanent magnet assisted positioning adsorption system according to claim 2, characterized in that: The end surfaces of the first sealing layer and the second sealing layer facing the receiving end are provided with guide grooves, and the guide grooves are connected to the ends of the positioning adsorption layer.

4. According to claim 3, a wireless charging permanent magnet assisted positioning adsorption system is characterized in that: The guide grooves are provided in a plurality of groups, and the plurality of guide grooves are circumferentially evenly spaced at the ends of the first sealing layer and the second sealing layer, and connecting ends are formed by clamping the ends of the first sealing layer and the second sealing layer between adjacent guide grooves.

5. A wireless charging permanent magnet assisted positioning adsorption system according to any one of claims 1 to 4, characterized in that: The positioning adsorption layer is made of permanent magnetic material, and the first sealing layer, the second sealing layer and the receiving end are all made of soft magnetic material.

6. A wireless charging permanent magnet assisted positioning adsorption system according to claim 5, characterized in that: The magnetization direction of the transmitting end is along the direction from the first sealing layer to the second sealing layer, and the inner wall of the receiving end is arranged to face the magnetization direction of the transmitting end.

Images