CN213279281U - Magnetic attraction device and wireless charger - Google Patents
Magnetic attraction device and wireless charger Download PDFInfo
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- CN213279281U CN213279281U CN202022199810.8U CN202022199810U CN213279281U CN 213279281 U CN213279281 U CN 213279281U CN 202022199810 U CN202022199810 U CN 202022199810U CN 213279281 U CN213279281 U CN 213279281U
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Abstract
The utility model belongs to the technical field of wireless charging equipment, especially, relate to a device and wireless charger are inhaled to magnetism. Magnetism is inhaled device and is used for detachably fixed electronic equipment, and it includes: the wireless structure comprises a circuit board and a coil, wherein the coil is electrically connected with one side board surface of the circuit board, and the coil is used for receiving electric energy from the circuit board and converting the electric energy outwards into a radio signal; the magnetic structure comprises a first magnetic strip and a second magnetic strip, the first magnetic strip and the second magnetic strip are matched in a magnetic attraction mode, and the first magnetic strip and the second magnetic strip are sequentially arranged in a stacking mode along the direction departing from the central position of the coil; the magnetic structure is provided with a plurality of, and the central point that each magnetic structure coiled the coil puts and arranges in proper order, and has at least a magnetic structure and sets up rather than the interval of another magnetic structure of arranging adjacently to form jointly and let out the magnetism breach. The utility model discloses make magnetic structure's magnetic field distribution even, improved the efficiency of magnetizing, the cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of wireless charging equipment, especially, relate to a device and wireless charger are inhaled to magnetism.
Background
Currently, in practical applications, a user needs to attach an electromagnetic coupling energy output device to a housing of a target powered device to input energy through electromagnetic coupling. Such as wirelessly charging a notebook or cell phone.
And the scheme of adopting magnet attraction at present all is to set up the slice magnet in the outside of coil module, fixes inboard at the product shell side by side with the coil module, through the magnetic attraction effect of magnet piece and target power device, and fixed target power device.
On one hand, because the magnet piece itself has the magnetic field, therefore must keep away from the coil module with magnet, avoid the magnetic field of magnet to disturb the magnetic field of coil module and lead to transmission efficiency to reduce, consequently can lead to the increase of product.
On the other hand, the magnet pieces need to be magnetized before being assembled, and in order to make the magnetic field distribution of the magnet pieces uniform, a special jig needs to be used before the magnet pieces are magnetized, the center positions of the magnet pieces are magnetized, and the jig is difficult to position and align due to the fact that the size of the magnet pieces is small, and accordingly the magnetizing efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the present application is to provide a magnetic attraction device, which aims to solve the problem of how to fix a target object to reduce the influence on a coil and improve the magnetizing efficiency.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: there is provided a magnetic attraction apparatus for detachably fixing an electronic device, the magnetic attraction apparatus including:
the wireless structure comprises a circuit board and a coil, wherein the coil is electrically connected with one side board surface of the circuit board, and the coil is used for receiving electric energy from the circuit board and converting the electric energy outwards into a radio signal; and
the magnetic structure comprises a first magnetic strip and a second magnetic strip, the first magnetic strip and the second magnetic strip are matched in a magnetic attraction manner, and the first magnetic strip and the second magnetic strip are sequentially arranged in a stacking manner along a direction deviating from the central position of the coil; the magnetic structure is provided with a plurality of magnetic structures, each magnetic structure is sequentially arranged around the central position of the coil, at least one magnetic structure and another magnetic structure which is arranged adjacent to the magnetic structure are arranged at intervals, and a magnetism leakage notch is formed jointly.
In one embodiment, each of the magnetic structures is sequentially arranged around the central position of the coil at intervals, and the magnetic leakage gap is formed between any two adjacent magnetic structures.
In one embodiment, each of the magnetic structures is continuously arranged around a central position of the coil, and an arrangement path of each of the magnetic structures is an arc.
In one embodiment, the widths of the first magnetic strip and the second magnetic strip in the direction away from the central position of the coil are equal.
In one embodiment, the length direction of the first magnetic strip is arranged in a straight line, the shape of the second magnetic strip is matched with that of the first magnetic strip, and the first magnetic strip and the second magnetic strip are magnetically attracted and connected along the length direction.
In one embodiment, the first magnetic stripe is arranged in an arc shape along the extending path of the first magnetic stripe in the length direction, the second magnetic stripe is arranged in an arc shape along the extending path of the second magnetic stripe in the length direction, and the circle center corresponding to the extending path of the second magnetic stripe and the first magnetic stripe are both located on the same side of the second magnetic stripe.
In one embodiment, the circle center corresponding to the extending path of the first magnetic strip is arranged to be coincident with the center position of the coil; the circle center corresponding to the extending path of the second magnetic strip is superposed with the center position of the coil.
In one embodiment, the end surfaces of the two ends of the first magnetic strip are coplanar with the end surfaces of the two ends of the second magnetic strip respectively.
Another object of the present application is to provide a wireless charger, which includes the magnetic attraction device as described above; the wireless charger further comprises a shell structure, the shell structure is specifically provided with a placement cavity, the magnetic attraction device is located in the placement cavity, and the placement cavity is provided with a charging surface for the electronic equipment to place.
In one embodiment, the wireless charger further comprises magnetic conductive sheets, and the magnetic attraction structures are connected with the magnetic conductive sheets.
The beneficial effect of this application lies in: the magnetic leakage notches are arranged on the arrangement path of the magnetic structures, so that the magnetic fields of the magnetic structures can be released from the magnetic leakage notches, and the influence of the magnetic fields of the magnetic structures on the coil is reduced. And the magnetic structure is docked by first magnetic stripe and second magnetic stripe to need not to magnetize single first magnetic stripe or second magnetic stripe, can magnetize first magnetic stripe or second magnetic stripe in batches promptly, the dock of rethread first magnetic stripe and second magnetic stripe, thereby make the magnetic field distribution of magnetic structure even, improved the efficiency of magnetizing, the cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a magnetic attraction device according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a magnetic attraction device according to another embodiment of the present application;
FIG. 3 is a schematic structural diagram of a magnetic attraction device according to yet another embodiment of the present application;
FIG. 4 is a schematic structural diagram of a wireless charger in an embodiment of the present application;
fig. 5 is an exploded view of the wireless charger of fig. 4.
Wherein, in the figures, the respective reference numerals:
100. a magnetic attraction device;
10. a magnetic structure;
11. a first magnetic stripe;
12. a second magnetic stripe;
20. a wireless architecture;
21. a coil;
22. a circuit board;
13. a magnetic leakage gap;
30. a housing structure;
31. a top cover;
32. a bottom case;
311. a charging surface;
40. a magnetic conductive sheet;
321. a placement cavity;
200. a wireless charger;
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and fig. 3, a magnetic attraction apparatus 100 is provided in an embodiment of the present disclosure, for detachably fixing an electronic device, where the electronic device may be a mobile phone, a notebook, or a tablet computer. The magnetic attraction apparatus 100 includes a wireless structure 20 and a magnetic structure 10. The wireless structure 20 includes a circuit board 22 and a coil 21, the coil 21 is electrically connected to a side of the circuit board 22, and the coil 21 is used for receiving power from the circuit board 22 and converting the power to a radio signal. Alternatively, in the present embodiment, the wireless structure 20 is a structure for transmitting a charging signal, and in other embodiments, the wireless signal may also be a structure for receiving a charging signal, that is, the coil 21 receives the charging signal from the outside and converts the charging signal into electric energy to the circuit board 22. The magnetic structure 10 includes a first magnetic stripe 11 and a second magnetic stripe 12, and the first magnetic stripe 11 and the second magnetic stripe 12 are both in the shape of a long strip and are magnetically attracted. Alternatively, the first magnetic stripe 11 and the second magnetic stripe 12 may be permanent magnets or static magnets. The first magnetic stripe 11 and the second magnetic stripe 12 are sequentially stacked in a direction away from the center of the coil 21. Optionally, the coil 21 is disposed in a circular disc, and the first magnetic stripe 11 and the second magnetic stripe 12 are sequentially disposed away from the center of the circular disc, that is, the first magnetic stripe 11 is located between the second magnetic stripe 12 and the center of the circular disc. The magnetic structures 10 are provided in plurality, each magnetic structure 10 is sequentially arranged around the center position of the coil 21, and at least one magnetic structure 10 is arranged at an interval with another magnetic structure 10 arranged adjacent to the magnetic structure 10, and together form a magnetism leakage gap 13. Alternatively, each magnetic structure 10 is circumferentially arranged in sequence around the center position of the coil 21, and the coil 21 is located in the arrangement path. Each magnetic structure 10 is magnetically connected with the electronic device, thereby achieving the purpose of fixing the electronic device.
By providing the magnetic leakage gaps 13 on the arrangement path of the magnetic structures 10, the magnetic field of each magnetic structure 10 can be released from the magnetic leakage gaps 13, thereby reducing the influence of the magnetic field of each magnetic structure 10 on the coil 21. And magnetic structure 10 is docked by first magnetic stripe 11 and second magnetic stripe 12 to need not to magnetize to the central point of single first magnetic stripe 11 or second magnetic stripe 12, can magnetize to first magnetic stripe 11 or second magnetic stripe 12 in batches promptly, the dock of rethread first magnetic stripe 11 and second magnetic stripe 12, thereby make magnetic structure 10's magnetic field distribution even, improved the convenience of magnetizing and the efficiency of magnetizing, the cost is reduced.
Referring to fig. 1 and 3, in one embodiment, each of the magnetic structures 10 is sequentially spaced around the center of the coil 21, and a magnetic leakage gap 13 is formed between any two adjacent magnetic structures 10. Alternatively, a plurality of magnetic flux leakage gaps 13 can reduce the influence of the magnetic field of each magnetic structure 10 on the coil 21 or other electronic components.
In one embodiment, the magnetic structures 10 are sequentially equally spaced.
In one embodiment, each magnetic structure 10 is continuously disposed around the center position of the coil 21, and the disposition path of each magnetic structure 10 is an arc.
Optionally, the central angle corresponding to the circular arc is greater than 345 degrees and less than 360 degrees.
It can be understood that a magnetic leakage gap 13 is formed between the two magnetic structures 10 at the head and tail ends of the arc, and the distance between the other magnetic structures 10 is 0.1 mm.
It can be understood that the magnetic leakage gap 13 is formed between the two magnetic structures 10 located at the head and tail ends of the circular arc, and the other magnetic structures 10 are completely connected, that is, the arrangement path of the central position of the winding coil 21 of each first magnetic stripe 11 is a section of circular arc, and the arrangement path of the central position of the winding coil 21 of each second magnetic stripe 12 is also a section of circular arc.
Referring to fig. 1 and fig. 3, in an embodiment, the widths of the first magnetic stripe 11 and the second magnetic stripe 12 in the direction away from the central position of the coil 21 are set to be equal, that is, the magnetic field at the magnetic attraction position of the first magnetic stripe 11 and the second magnetic stripe 12 is the smallest, so as to facilitate the batch magnetization of the first magnetic stripe 11 and/or the second magnetic stripe 12.
In one embodiment, the length direction of the first magnetic stripe 11 is arranged in a straight line, the shape of the second magnetic stripe 12 is matched with the shape of the first magnetic stripe 11, and the first magnetic stripe 11 and the second magnetic stripe 12 are magnetically attracted along the length direction.
Referring to fig. 1 and 3, in an embodiment, the first magnetic stripe 11 is arranged in an arc shape along the extending path of the length direction thereof, the second magnetic stripe 12 is arranged in an arc shape along the extending path of the length direction thereof, and the circle center corresponding to the extending path of the second magnetic stripe 12 and the first magnetic stripe 11 are both located on the same side of the second magnetic stripe 12.
In one embodiment, the center of the circle corresponding to the extending path of the first magnetic stripe 11 is arranged to coincide with the center position of the coil 21; the circle center corresponding to the extending path of the second magnetic stripe 12 is superposed with the center position of the coil 21. Alternatively, the first magnetic stripe 11 and the second magnetic stripe 12 are respectively arranged symmetrically with respect to the same ray passing through the center position of the coil 21.
In one embodiment, the end surfaces of the two ends of the first magnetic stripe 11 are coplanar with the end surfaces of the two ends of the second magnetic stripe 12.
Referring to fig. 4 and 5, the present invention further provides a wireless charger 200, wherein the wireless charger 200 includes a magnetic attraction device 100, and the specific structure of the magnetic attraction device 100 refers to the above embodiments.
In one embodiment, the wireless charger 200 further includes a housing structure 30, the housing structure 30 has a housing cavity 321, the magnetic attraction device 100 is located in the housing cavity 321, and the housing cavity 321 is provided with a charging surface 311 for placing the electronic device. Optionally, the housing structure 30 includes a bottom shell 32 and a top cover 31, the charging surface 311 is disposed on the top cover 31, and the bottom shell 32 is abutted with the top cover 31 and forms the mounting cavity 321.
In one embodiment, the wireless charger 200 further includes magnetic conductive plates 40, and the magnetic attraction structures are connected to the magnetic conductive plates 40, and the magnetic conductive plates 40 are used for guiding the magnetic field distribution of each magnetic structure 10.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A magnetic attraction device for detachably securing an electronic device, the magnetic attraction device comprising:
the wireless structure comprises a circuit board and a coil, wherein the coil is electrically connected with one side board surface of the circuit board, and the coil is used for receiving electric energy from the circuit board and converting the electric energy outwards into a radio signal; and
the magnetic structure comprises a first magnetic strip and a second magnetic strip, the first magnetic strip and the second magnetic strip are matched in a magnetic attraction manner, and the first magnetic strip and the second magnetic strip are sequentially arranged in a stacking manner along a direction deviating from the central position of the coil; the magnetic structure is provided with a plurality of magnetic structures, each magnetic structure is sequentially arranged around the central position of the coil, at least one magnetic structure and another magnetic structure which is arranged adjacent to the magnetic structure are arranged at intervals, and a magnetism leakage notch is formed jointly.
2. The magnetic attraction device of claim 1, wherein: the magnetic structures are arranged around the central position of the coil at intervals in sequence, and the magnetism leakage gap is formed between any two adjacent magnetic structures.
3. The magnetic attraction device of claim 1, wherein: the magnetic structures are continuously arranged around the central position of the coil, and the arrangement path of each magnetic structure is a section of circular arc.
4. The magnetic attraction device of claim 1, wherein: the widths of the first magnetic strip and the second magnetic strip in the direction deviating from the center position of the coil are equal.
5. The magnetic attraction device of claim 1, wherein: the length direction of first magnetic stripe is the straight line and arranges, the shape of second magnetic stripe with the shape adaptation of first magnetic stripe, just first magnetic stripe with the second magnetic stripe is followed length direction magnetism and is inhaled the connection.
6. The magnetic attraction device of claim 1, wherein: the first magnetic strip is arranged in a circular arc mode along the extending path in the length direction, the second magnetic strip is arranged in a circular arc mode along the extending path in the length direction, and the circle center corresponding to the extending path of the second magnetic strip and the first magnetic strip are located on the same side of the second magnetic strip.
7. The magnetic attraction device of claim 6, wherein: the circle center corresponding to the extending path of the first magnetic stripe is superposed with the center position of the coil; the circle center corresponding to the extending path of the second magnetic strip is superposed with the center position of the coil.
8. A magnetic attraction device according to any one of claims 1 to 7 wherein: the end faces at the two ends of the first magnetic strip are coplanar with the end faces at the two ends of the second magnetic strip respectively.
9. A wireless charger, characterized in that it comprises a magnetic attraction device according to any one of claims 1 to 8; the wireless charger further comprises a shell structure, the shell structure is specifically provided with a placement cavity, the magnetic attraction device is located in the placement cavity, and the placement cavity is provided with a charging surface for the electronic equipment to place.
10. The wireless charger of claim 9, wherein: the wireless charger further comprises magnetic conductive sheets, and the magnetic attraction structures are connected with the magnetic conductive sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022199810.8U CN213279281U (en) | 2020-09-29 | 2020-09-29 | Magnetic attraction device and wireless charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022199810.8U CN213279281U (en) | 2020-09-29 | 2020-09-29 | Magnetic attraction device and wireless charger |
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| Publication Number | Publication Date |
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| CN213279281U true CN213279281U (en) | 2021-05-25 |
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| CN202022199810.8U Active CN213279281U (en) | 2020-09-29 | 2020-09-29 | Magnetic attraction device and wireless charger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022141504A1 (en) * | 2020-12-31 | 2022-07-07 | 广东高普达集团股份有限公司 | Magnetic suction apparatus and wireless charger |
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2020
- 2020-09-29 CN CN202022199810.8U patent/CN213279281U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022141504A1 (en) * | 2020-12-31 | 2022-07-07 | 广东高普达集团股份有限公司 | Magnetic suction apparatus and wireless charger |
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