Folding wireless charging coil
By setting creases on the lead surface of the wireless charging coil, so that they can be folded vertically or parallel, the lead interference problem is solved, and the coil is compactly arranged, reducing production costs.
Patent Information
- Application Number
- CN202421480321.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-06-25
AI Technical Summary
In existing wireless charging devices, the vertical distribution of leads and the coil body causes leads to interfere with each other, affecting the number of coils within the same area, and increasing production costs.
A folded wireless charging coil is designed, with creases on the lead surface, which can be folded along the crease, making it arranged perpendicularly or parallel to the main body, reducing the mutual interference of the leads and improving the compactness of the coil arrangement.
Through the folding design, the gap between the coil is reduced, the production cost is reduced, and different arrangements are allowed according to actual needs.
Smart Images
Figure CN223052799U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of wireless charging, and particularly relates to a foldable wireless charging coil. Background Art
[0002] Wireless charging devices are commonly used in mobile phone charging. The production of wireless charging devices usually requires multiple coil arrays to be evenly arranged, and the number of wireless charging coils placed within the same area directly affects the production cost of wireless charging devices.
[0003] For existing wireless charging coils made by FPC, the lead part and the coil body are usually vertically distributed. When the existing wireless charging coils are placed, the lead parts will interfere with each other, resulting in a small number of existing wireless charging coils placed within the same area, thereby affecting the production cost of wireless charging devices. Utility Model Content
[0004] The main purpose of this application is to propose a foldable wireless charging coil, aiming to solve the problem of high production cost of wireless charging devices.
[0005] To achieve the above object, the foldable wireless charging coil proposed in this application includes: a main body and a lead. The lead is arranged on the outside of the main body, and the lead is electrically connected to the main body. The surface of the lead is provided with creases, and the lead can be folded along the creases so that the lead can be perpendicular or parallel to the outside of the main body through folding.
[0006] Optionally, one end of the lead is electrically connected to the main body, and the other end of the lead is connected to an external circuit.
[0007] Optionally, the shape of the main body is a square structure with rounded corners.
[0008] Optionally, the main body and the lead are structures made by etching an FPC flexible circuit board.
[0009] Optionally, the lead is arranged parallel to the outside of the main body.
[0010] Optionally, the creases include a first crease and a second crease. The first crease and the second crease are arranged on the surface of the lead, and the lead can be folded along the first crease and the second crease.
[0011] Optionally, multiple coil arrays are evenly distributed. Every two rows of the coils are divided into a group, and the leads of the two rows of coils in the same group are distributed oppositely.
[0012] Optionally, the lead is arranged perpendicular to the outside of the main body.
[0013] Optionally, the crease is a third crease, the third crease is disposed on the surface of the lead wire, and the lead wire can be folded along the third crease.
[0014] Optionally, after the lead wire is folded along the third crease, at this time, a plurality of the coil arrays are evenly distributed, every two rows of the coils are divided into a group, and the lead wires of the two rows of the coils in the same group are oppositely distributed.
[0015] The technical solution of the present application enables the lead wire to be folded along the crease by arranging a crease on the surface of the lead wire, so that the lead wire can be perpendicular to the main body and also parallel to the main body. When the lead wire is perpendicular to the main body, the coils are arranged in the manner of the prior art; when the lead wire is parallel to the main body, when a plurality of coils are arranged, the interference between the lead wires can be reduced, the gap between the coils can be reduced, the arrangement between the coils can be made more compact, the area occupied by the same number of coils after arrangement can be made smaller, and more coils can be arranged within the same area, thereby reducing the production cost of the wireless charging device. In addition, it is convenient for the wireless charging coils to be arranged differently according to actual needs. Description of the Drawings
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application 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 drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.
[0017] Figure 1 It is a schematic structural diagram of a wireless charging coil manufactured by FPC in the prior art;
[0018] Figure 2 It is a schematic diagram of the arrangement manner of a wireless charging coil manufactured by FPC in the prior art;
[0019] Figure 3 It is a schematic structural diagram of a first embodiment of a foldable wireless charging coil;
[0020] Figure 4 It is a schematic diagram of the arrangement manner of a foldable wireless charging coil;
[0021] Figure 5 It is a schematic diagram of the folded state of a first embodiment of a foldable wireless charging coil;
[0022] Figure 6 It is a schematic structural diagram of a second embodiment of a foldable wireless charging coil;
[0023] Figure 7 It is a schematic diagram of the folded state of a second embodiment of a foldable wireless charging coil.
[0024] Description of the reference numerals in the drawings:
[0025] 1. Coil; 2. Lead wire; 201. First crease; 202. Second crease; 203. Third crease. The realization of the purpose of this application, its functional features and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings. Detailed implementation manners
[0026] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly disposed on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.
[0028] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.
[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of this application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" that appears throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0030] It should be noted that the structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the efficacy that this application can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.
[0031] For the existing wireless charging coil made by FPC, the lead part and the coil body are usually vertically distributed. When the existing wireless charging coil is placed, the lead parts will interfere with each other, resulting in a smaller number of existing wireless charging coils that can be placed within the same area, thereby affecting the production cost of the wireless charging device.
[0032] In view of this, this application proposes a foldable wireless charging coil, which includes a main body 1 and a lead 2. The lead 2 is arranged outside the main body 1. The lead 2 is electrically connected to the main body 1. The surface of the lead 2 is provided with a crease, and the lead 2 can be folded along the crease so that the lead 2 can be perpendicular or parallel to the outside of the main body 1 through folding.
[0033] In the embodiment of this application, referring to Figures 3 to 5 , the above-mentioned foldable wireless charging coil includes a main body 1 and a lead 2. The shape of the main body 1 is a square with rounded corners. The square design enables the coils to be arranged more closely, and the rounded corner design facilitates the production of the main body 1.
[0034] Referring to Figures 3 to 5 , the first embodiment of the foldable wireless charging coil.
[0035] Referring to Figure 3 , the lead 2 is arranged outside the main body 1. One end of the lead 2 is electrically connected to the main body 1, and the other end of the lead 2 is connected to an external circuit. The lead 2 is parallel to the outside of the main body 1. This design enables the interference between the leads 2 to be reduced when multiple main bodies 1 are arranged, which is beneficial to the mutual arrangement of multiple coils.
[0036] Referring to Figure 4 , multiple coils are evenly distributed in an array row by row. Every two rows of coils are divided into a group, that is, the first row of coils and the second row of coils are divided into a group, the second row of coils and the third row of coils are divided into a group, and so on. The leads 2 of the two rows of coils in the same group are distributed oppositely. The lead 2 of the first row of coils and the lead 2 of the second row of coils are distributed oppositely. Similarly, the lead 2 of the third row of coils and the lead 2 of the fourth row of coils are distributed oppositely. This arrangement enables the two rows of coils in the same group to be connected in series through the same wire, facilitating the connection between the coils and the external circuit.
[0037] The main body 1 and the lead 2 are structures made by etching an FPC flexible circuit board. Refer to Figure 3 , the surface of the lead 2 is provided with an inclined first crease 201 and a second crease 202. Refer to Figure 5 , when the lead 2 is first folded along the first crease 201, the lead 2 will face upward. At this time, the upper and lower parts of the lead 2 will be offset from each other. When the lead 2 is secondarily folded along the second crease 202, the offset leads 2 will be aligned vertically. At this time, the lead 2 will be vertically distributed with respect to the outer edge of the main body 1.
[0038] In summary, designing the lead 2 parallel to the outside of the main body 1 can reduce the mutual interference of the leads 2 when multiple main bodies 1 are arranged, which is beneficial to the mutual arrangement of multiple coils. Compared with the prior art, it can reduce the gap between coils, make the arrangement of coils more compact, make the area occupied by the same number of coils after arrangement smaller, and also enable more coils to be arranged within the same area, thereby reducing the production cost of wireless charging devices; in addition, the design of the first crease 201 and the second crease 202 makes the lead 2 perpendicular to the outer edge of the main body after two folds, enabling the wireless charging coils to still be arranged in the manner of the prior art, facilitating different arrangements of the wireless charging coils according to actual situations.
[0039] Refer to Figure 6 and Figure 7 , the second embodiment of the foldable wireless charging coil.
[0040] Refer to Figure 6 , the difference between the second embodiment and the first embodiment is that the lead 2 is vertically arranged with respect to the outside of the main body 1, and the surface of the lead 2 is provided with an inclined third crease 203.
[0041] Refer to Figure 7 , when the lead 2 is folded along the third crease 203, the lead 2 will be parallel to the outside of the main body 1. At this time, the mutual interference of the leads 2 can be reduced when multiple main bodies 1 are arranged, which is beneficial to the mutual arrangement of multiple coils.
[0042] Refer to Figure 4 , when the lead 2 is folded along the third crease 203, at this time, multiple coil arrays are evenly distributed. Every two rows of the coils are divided into a group, that is, the first row of coils and the second row of coils are divided into a group, the second row of coils and the third row of coils are divided into a group, and so on. The leads 2 of the two rows of coils in the same group are distributed oppositely, enabling the two rows of coils in the same group to be connected in series through the same wire, facilitating the connection of the coils to the external circuit.
[0043] In summary, the lead wire 2 is vertically arranged with respect to the outer side of the main body 1. By providing a third crease 203 on the surface of the lead wire 2, the lead wire 2 can be folded along the third crease 203. At this time, the lead wire 2 will be parallel to the outer side of the main body 1. When multiple main bodies 1 are arranged, the interference between the lead wires 2 can be reduced. Refer to Figure 4 , which is beneficial to the arrangement of multiple coils, can reduce the gap between coils, make the arrangement of coils more compact, make the area occupied by the same number of coils after arrangement smaller, and also enable more coils to be arranged within the same area, thereby reducing the production cost of the wireless charging device.
[0044] The technical solution of the present application arranges the crease on the surface of the lead wire, enabling the lead wire to be folded along the crease, so that the lead wire can be perpendicular to the main body and also parallel to the main body. When the lead wire is perpendicular to the main body, the coils are arranged in the existing manner. When the lead wire is parallel to the main body, the interference between the lead wires can be reduced during the arrangement of multiple coils, the gap between the coils can be reduced, the arrangement of the coils can be made more compact, the area occupied by the same number of coils after arrangement can be made smaller, and more coils can be arranged within the same area, thereby reducing the production cost of the wireless charging device. In addition, it is convenient for the wireless charging coil to be arranged differently according to actual needs.
[0045] The above are only optional embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structural transformation made by using the content of the specification and drawings of the present application under the inventive concept of the present application, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present application.
Claims
1. A foldable wireless charging coil, characterized in that: include: A main body and a lead, wherein the lead is arranged on the outside of the main body, the lead is electrically connected to the main body, a crease is provided on the surface of the lead, the lead can be folded along the crease, and the lead can be perpendicular or parallel to the outside of the main body through folding.
2. The foldable wireless charging coil according to claim 1, characterized in that: One end of the lead is electrically connected to the main body, and the other end of the lead is connected to an external circuit.
3. The foldable wireless charging coil according to claim 1, characterized in that: The main body is in the shape of a square structure with rounded corners.
4. The foldable wireless charging coil according to claim 1, characterized in that: The main body and the lead are structures made by etching an FPC flexible circuit board.
5. The foldable wireless charging coil according to claim 4, characterized in that: The lead wire is arranged parallel to the outer side of the main body.
6. The foldable wireless charging coil according to claim 5, characterized in that: The folds include a first fold and a second fold, the first fold and the second fold are disposed on the surface of the lead, and the lead can be folded along the first fold and the second fold.
7. The foldable wireless charging coil according to claim 4, characterized in that: The lead wire is arranged perpendicularly to the outer side of the main body.
8. The foldable wireless charging coil according to claim 7, characterized in that: The fold is a third fold, which is disposed on the surface of the lead, and the lead can be folded along the third fold.
9. The foldable wireless charging coil according to claim 6 or 8, characterized in that: The plurality of coil arrays are evenly distributed, and every two rows of coils are grouped together. The leads of the two rows of coils in the same group are relatively distributed.