CN216904366U - Magnetic assembly and charging unit - Google Patents
Magnetic assembly and charging unit Download PDFInfo
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- CN216904366U CN216904366U CN202220420812.1U CN202220420812U CN216904366U CN 216904366 U CN216904366 U CN 216904366U CN 202220420812 U CN202220420812 U CN 202220420812U CN 216904366 U CN216904366 U CN 216904366U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model relates to the technical field of wireless magnetizing and attracting, in particular to a magnetic assembly and a charging unit; the magnetic field generator comprises a first annular magnetic array with the same polarity on the upper surface and a second annular magnetic array with the same polarity on the upper surface, wherein the first annular magnetic array is positioned on the inner side of the second annular magnetic array, and the upper surface magnetic poles of the first annular magnetic array and the second annular magnetic array are opposite; a third annular magnetic array with a different polarity upper surface is arranged between the first annular magnetic array and the second annular magnetic array; the end part of the third annular magnetic array is the same as the upper surface magnetic pole of the adjacent magnetic array; the utility model provides a magnetic component and charging unit, it is through setting up bipolar magnetic circuit structure to restrain the magnetic leakage, improved the magnetic field utilization ratio, increased the effect of inhaling of magnetism.
Description
Technical Field
The utility model relates to the technical field of wireless magnetizing and attracting, in particular to a magnetic assembly and a charging unit.
Background
The wireless charging of consumer electronics is a necessary development trend in the future, and the wireless charging technology is derived from a wireless electric energy transmission technology and can be divided into a low-power wireless charging mode and a high-power wireless charging mode; the low-power wireless charging is usually in an electromagnetic induction type, such as a mobile phone charging mode, and the wireless charging mode of an electric automobile is generally in an induction type; the high-power wireless charging usually adopts a resonance type, and the power supply equipment (charger) transmits energy to a device for power utilization, and the device charges a battery by using the received energy and simultaneously provides the device for self operation.
Magnetic wireless charging brings a new revolution, such as mobile phone wireless charging and vehicle-mounted wireless charging; but the current design of inhaling magnetically has the problem that the suction is weak, the location effect is not good enough, leads to charging efficiency to receive the influence.
In order to increase the magnetic attraction effect, the current method is to increase the volume of the magnet, but increasing the volume of the magnet will destroy the lightness and smallness of the product; based on this technical background, the inventor designs a magnetic assembly and a charging unit, which improve the magnetic attraction force by adopting a new magnetic circuit structure.
Disclosure of Invention
In order to solve the technical problems of weak wireless charging attraction force, poor positioning effect and the like in the prior art, the utility model provides a magnetic assembly and a charging unit.
The technical scheme adopted by the utility model is as follows: a magnetic assembly comprises a first annular magnetic array with the same polarity on the upper surface and a second annular magnetic array with the same polarity on the upper surface, wherein the first annular magnetic array is positioned on the inner side of the second annular magnetic array, and the upper surface magnetic poles of the first annular magnetic array and the second annular magnetic array are opposite; a third annular magnetic array with a different polarity on the upper surface is arranged between the first annular magnetic array and the second annular magnetic array; and the third annular magnetic array is transversely magnetized, and the magnetic pole surface of the third annular magnetic array is the same as the magnetic pole of the upper surface of the adjacent magnetic array.
Furthermore, the first annular magnetic array, the second annular magnetic array and the third annular magnetic array form a magnetic array group, and the magnetic array group is arranged on the magnetic conduction backing ring.
Furthermore, the first annular magnetic array, the second annular magnetic array and the third annular magnetic array are respectively composed of a plurality of small magnet units, the magnetic pole directions of the first annular magnetic array and the second annular magnetic array are vertical, and the magnetic pole direction of the third annular magnetic array is transverse.
Optionally, the upper surfaces of the second annular magnetic arrays are all N poles, the upper surfaces of the first annular magnetic arrays are all S poles, and the third annular magnetic array integrally presents a magnetic pole outside N and inside S.
Optionally, the upper surfaces of the second annular magnetic arrays are all S poles, the upper surfaces of the first annular magnetic arrays are all N poles, and the third annular magnetic array integrally presents magnetic poles on the outer side S and the inner side N.
Mounting notches are formed on the magnetic array group and the magnetic conductive backing ring; the length and the width of the magnetic array group are the same as those of the magnetic conducting backing ring; the magnetic array group is in any one structure of a round structure, a rectangular structure approaching to a round structure, a square structure, a triangular structure or an oval structure.
The present application also provides a charging unit comprising the magnetic assembly of any of the above embodiments; at equal adsorption capacity and off-set restoring force, the thickness is less compared with the prior art.
The utility model achieves the following beneficial effects: in the gap between the magnetic array group and the mobile phone magnet, the magnetic field of invalid work is weakened, while the magnetic field of the magnet penetrating through the mobile phone is denser, so that the magnetic leakage of the magnet is relatively smaller, the utilization rate of the magnetic field is relatively improved, and the magnetic attraction force is also improved; therefore, the magnetic property is large, and the thickness of the magnetic material is small under the same adsorption force and offset restoring force.
The utility model also has the following characteristics: the magnetic conducting backing ring plays a role in strength support, working surface magnetism gathering and non-working surface magnetism isolation for the magnetic array group; almost close to zero; thereby reducing the influence of the magnetic field formed on the lower surface of the magnetic array group on other components to a certain extent.
Drawings
Fig. 1 is a schematic structural view of a conventional magnetic charging device.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of the structure of the installation notch of the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3.
FIG. 5 is a schematic diagram of the array arrangement of the present invention.
FIG. 6 is a schematic diagram of the overall structure of the magnetic array assembly of the present invention.
Fig. 7 is a diagram illustrating a magnetic field distribution according to the prior art.
FIG. 8 is a second diagram of a magnetic field distribution of the prior art.
Fig. 9 is a first diagram of the magnetic field distribution of the present invention.
FIG. 10 is a second schematic diagram of the magnetic field distribution of the present invention.
In the figure, 1, a first annular magnetic array; 2. a second annular magnetic array; 3. a third annular magnetic array; 4. a magnetic conductive backing ring; 5. and (6) installing a notch.
Detailed Description
To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The current magnetic attraction design has the problems of weak attraction force and poor positioning effect, so that the charging efficiency is influenced; the current magnetic attraction design is shown in figure 1, a ring of tile-shaped magnets are spliced into a ring shape, and the magnets are magnetized into a ring-shaped bipolar shape; the open-circuit magnetic field and the magnetic field distribution when the magnetic field is adsorbed to the mobile phone are shown in figures 7-8, the magnetic field distribution is dense at the gap between the magnetic array group and the mobile phone magnet, however, when the magnetic field does not reach the mobile phone magnet, the magnetic field is leakage flux and is invalid, namely, the magnetic leakage flux is serious in the current design, the utilization rate of the magnetic field is not high, and the magnetic attraction force is low.
As shown in fig. 2, the present invention provides a magnetic assembly, which includes a first annular magnetic array 1 having the same polarity on the upper surface and a second annular magnetic array 2 having the same polarity on the upper surface, wherein the first annular magnetic array 1 is located inside the second annular magnetic array 2, and the magnetic poles on the upper surfaces of the first annular magnetic array 1 and the second annular magnetic array 2 are opposite; a third annular magnetic array 3 with a different polarity on the upper surface is arranged between the first annular magnetic array 1 and the second annular magnetic array 2; the magnetic pole surface of the third annular magnetic array 3 close to the first annular magnetic array 1 is the same as the magnetic pole of the upper surface of the first annular magnetic array 1, and the magnetic pole surface of the other side of the third annular magnetic array is the same as the magnetic pole of the upper surface of the second annular magnetic array 2; forming magnetic array groups on the first annular magnetic array 1, the second annular magnetic array 2 and the third annular magnetic array 3, and adhering the lower sides of the magnetic array groups to the magnetic conducting backing ring 4; the magnetic conductive backing ring 4 is made of metal magnetic conductive material, such as iron; the magnetic conducting backing ring 4 plays a role in supporting the strength of the magnetic array group and gathering magnetism of a working surface and isolating magnetism of a non-working surface for the magnetic array group; the length and the width of the magnetic array group are the same as those of the magnetic conducting backing ring 4; brushing glue on the upper plane of the magnetic conducting backing ring 4 for bonding or bonding double-sided glue, and then bonding and fixing the lower surfaces of the first annular magnetic array 1, the second annular magnetic array 2 and the third annular magnetic array 3 on the upper surface of the magnetic conducting backing ring 4; after the magnetic conduction of the magnetic conduction backing ring 4, the magnetic field intensity of the lower surface of the magnetic array group is weaker and almost approaches zero; thereby reducing the influence of the magnetic field formed on the lower surface of the magnetic array group on other components to a certain extent.
Example one
As shown in fig. 3, the first annular magnetic array 1, the second annular magnetic array 2 and the third annular magnetic array 3 are respectively composed of a plurality of small magnet units, the magnetic pole directions of the first annular magnetic array 1 and the second annular magnetic array 2 are vertical, and the magnetic pole direction of the third annular magnetic array 3 is horizontal, in one embodiment, each group of magnetic arrays is provided with 16 small magnet units to form 48 pieces which are respectively adhered to a magnetic conductive iron ring, the upper surface of the second annular magnetic array 2 is an N pole, the upper surface of the first annular magnetic array 1 is an S pole, and the whole third annular magnetic array 3 presents a magnetic pole of an outside N inside S; in this embodiment, the open-circuit magnetic field and the magnetic field distribution when the magnetic field is attracted to the mobile phone are shown in fig. 9-10, and it can be seen that the magnetic field of the invalid work is weakened at the gap between the magnetic array group and the mobile phone magnet, and the magnetic field passing through the magnet at the mobile phone is denser, so that the magnetic flux leakage of the magnet is relatively small, the magnetic field utilization rate is relatively improved, and the magnetic attraction force can also be improved, and according to the FEA simulation and actual test results, the magnetic attraction force and the off-position restoring force of the magnetic assembly are improved by about 40% compared with those of a common magnetic assembly; the magnetic properties are greater, and the thickness of the magnetic material can be reduced by 30% compared with the prior art under the condition of meeting the existing adsorption threshold value and at the same adsorption force and deviation restoring force.
Example two
As shown in fig. 5, in the structure of the first embodiment, the magnetic pole distribution of the second embodiment is different from that of the first embodiment, in this embodiment, the upper surfaces of the second annular magnetic arrays 2 are all S poles, the upper surfaces of the first annular magnetic arrays 1 are all N poles, and the third annular magnetic array 3 has magnetic poles outside S and inside N poles as a whole.
As shown in fig. 5, mounting notches 5 are formed on the magnetic array group and the magnetic conductive backing ring 4, and the mounting notches 5 are used for arranging external wires of the induction coil, so that the overall structure is more exquisite and small; meanwhile, in order to adapt to different structural shapes, the overall outline shape of the magnetic array group can be various types; as shown in fig. 6, the array group has any one of a circular, rectangular, square, triangular or elliptical configuration that approximates to a circle.
The present application also provides a charging unit comprising the magnetic assembly of any of the above embodiments; under the condition of meeting the existing adsorption threshold value, the thickness of the adsorption material can be reduced by 30% compared with the prior art under the same adsorption force and deviation restoring force; therefore, the charging unit that this application set up is more exquisite small and exquisite.
The above-mentioned fixing methods, if not separately described, all use the means of common technique of those skilled in the art, such as welding, nesting, or screw fixing.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A magnetic assembly, comprising: the magnetic field generator comprises a first annular magnetic array (1) with the same polarity on the upper surface and a second annular magnetic array (2) with the same polarity on the upper surface, wherein the first annular magnetic array (1) is positioned on the inner side of the second annular magnetic array (2), and the upper surface magnetic poles of the first annular magnetic array (1) and the second annular magnetic array (2) are opposite; a third annular magnetic array (3) with a different polarity upper surface is arranged between the first annular magnetic array (1) and the second annular magnetic array (2); the magnetic pole surface is the same as the magnetic pole of the upper surface of the adjacent magnetic array.
2. A magnetic assembly according to claim 1, wherein: the first annular magnetic array (1), the second annular magnetic array (2) and the third annular magnetic array form a magnetic array group, and the magnetic array group is arranged on the magnetic conduction backing ring (4).
3. A magnetic assembly according to claim 2, wherein: the first annular magnetic array (1), the second annular magnetic array (2) and the third annular magnetic array are respectively composed of a plurality of small magnet units, the magnetic pole directions of the first annular magnetic array (1) and the second annular magnetic array (2) are vertical, and the magnetic pole direction of the third annular magnetic array (3) is transverse.
4. A magnetic assembly according to claim 3, wherein: the upper surface of the second annular magnetic array (2) is an N pole, the upper surface of the first annular magnetic array (1) is an S pole, and the whole third annular magnetic array presents a magnetic pole of the outer side N and the inner side S.
5. A magnetic assembly according to claim 3, wherein: the upper surfaces of the second annular magnetic arrays (2) are S poles, the upper surfaces of the first annular magnetic arrays (1) are N poles, and the third annular magnetic arrays integrally present magnetic poles of the outer side S and the inner side N.
6. A magnetic assembly according to claim 2, wherein: and installation gaps (5) are formed on the magnetic array group and the magnetic conductive backing ring (4).
7. A magnetic assembly according to claim 2, wherein: the length and the width of the magnetic array group are the same as those of the magnetic conductive backing ring (4).
8. A magnetic assembly according to claim 7, wherein: the magnetic array group is in any one structure of a round, a rectangle approaching to a round, a square, a triangle or an ellipse.
9. A charging unit, characterized by: comprising a magnetic assembly as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220420812.1U CN216904366U (en) | 2022-03-01 | 2022-03-01 | Magnetic assembly and charging unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220420812.1U CN216904366U (en) | 2022-03-01 | 2022-03-01 | Magnetic assembly and charging unit |
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| CN216904366U true CN216904366U (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220420812.1U Active CN216904366U (en) | 2022-03-01 | 2022-03-01 | Magnetic assembly and charging unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023208253A1 (en) * | 2022-04-27 | 2023-11-02 | 深圳市蓝禾技术有限公司 | Magnetic assembly and magnetic ring structure |
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2022
- 2022-03-01 CN CN202220420812.1U patent/CN216904366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023208253A1 (en) * | 2022-04-27 | 2023-11-02 | 深圳市蓝禾技术有限公司 | Magnetic assembly and magnetic ring structure |
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