CN214479720U

CN214479720U - Ultra-thin wireless emitter that charges

Info

Publication number: CN214479720U
Application number: CN202120485821.4U
Authority: CN
Inventors: 苏永东
Original assignee: Xinjia Digital Electronics Shenzhen Co ltd
Current assignee: Xinjia Digital Electronics Shenzhen Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-10-22
Anticipated expiration: 2031-03-05

Abstract

The utility model relates to an ultra-thin wireless emitter that charges. The wireless charging transmitting device comprises a transmitting coil and a circuit board, wherein the circuit board is electrically connected with the transmitting coil and used for applying alternating voltage to the transmitting coil, the transmitting coil is annular, a containing hole is formed in the middle of the transmitting coil, the circuit board is arranged in the containing hole, and the plane of the circuit board is parallel to the plane where the transmitting coil is located. The utility model discloses place the circuit board in annular transmitting coil's centre, let circuit board thickness and transmitting coil's thickness form and overlap, can reduce the gross thickness when both range upon range of for off-the-shelf thickness can reduce, and the portability obtains improving, and the outward appearance effect also obtains improving.

Description

Ultra-thin wireless emitter that charges

Technical Field

The utility model relates to a wireless charging technology, the more specifically ultra-thin wireless emitter that charges that says so.

Background

The wireless charging technology is derived from a wireless power transmission technology and can be divided into a low-power wireless charging mode and a high-power wireless charging mode. Most of wireless charging of the intelligent terminal in daily life is low-power wireless charging, and is generally realized through electromagnetic induction. The wireless charging generally includes a transmitting end and a receiving end, where the transmitting end is responsible for transmitting electromagnetic waves and the receiving end is responsible for receiving electromagnetic waves. In the existing wireless charging transmitter, at least a transmitting coil and a circuit board are generally provided, and the transmitting coil and the circuit board are stacked. Chinese patent CN212323767U describes a wireless charging and transmitting module, in which a transmitting coil, a circuit board and a heat dissipating plate are stacked, so that the thickness of the whole product is relatively large. In the prior art, because the laminated transmitting coil and the circuit board occupy a certain thickness, the thickness of a finished product cannot be reduced and needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above defect of prior art, provide an ultra-thin wireless emitter that charges to reduce the whole thickness of device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the circuit board is electrically connected with the transmitting coil and used for applying alternating voltage to the transmitting coil, the transmitting coil is annular, a containing hole is formed in the middle of the transmitting coil, the circuit board is arranged in the containing hole, and the plane of the circuit board is parallel to the plane where the transmitting coil is located.

The middle of the transmitting coil is a circular accommodating hole.

The periphery of transmitting coil is provided with the magnet piece, and the magnet piece is used for adsorbing the ferromagnetic piece of fixed connection by the charge terminal through magnetic attraction.

The magnet block is cylindrical. The magnet blocks are four in uniform distribution. The magnet piece is still used for adsorbing wireless charging emitter on outside ferromagnetic surface through magnetic attraction.

Emitting coil and circuit board all establish in the shell, and the shell is equipped with the installation hole site that is used for holding fixed magnet piece, and the shape size and the magnet piece shape size of installation hole site are unanimous.

The shell comprises an upper cover and a bottom plate, the transmitting coil and the circuit board are arranged in a space enclosed by the upper cover and the bottom plate, and the mounting hole is arranged in the upper cover.

The middle of the bottom surface of the shell is provided with a fixing hole, and the fixing hole is used for inserting the rod head or screwing in a screw to fix the wireless charging transmitting device on an external object.

Compared with the prior art, the utility model beneficial effect be: the circuit board is placed in the middle of the annular transmitting coil, the thickness of the circuit board is overlapped with that of the transmitting coil, the total thickness of the circuit board and the transmitting coil during lamination can be reduced, the thickness of a finished product is reduced, the portability is improved, and the appearance effect is also improved.

The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.

Drawings

Fig. 1 is an exploded view of the wireless charging transmitting device of the present invention.

Fig. 2 is the utility model discloses a wireless emitter that charges's assembly perspective.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

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 invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above should not be understood to 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. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

The present embodiment is an ultra-thin wireless charging transmitter, and the specific structure thereof is shown in fig. 1. The wireless charging transmitting device comprises a shell 10, a power line 19, a transmitting coil 13 and a circuit board 14. The power cord 19 is electrically connected to the circuit board 14, and the power cord 19 is used for receiving external power, such as electric power of a commercial power supply or a mobile power supply. In this embodiment, the power cord 19 is fixedly connected to the housing 10, and in other embodiments, the power cord 19 may be plugged into a USB interface of the wireless charging and transmitting device via a USB plug. The housing 10 includes an upper cover 11 and a bottom plate 12 fixedly coupled to each other. The transmitting coil 13 and the circuit board 14 are disposed in a space enclosed by the upper cover 11 and the bottom plate 12. The circuit board 14 is electrically connected to the transmission coil 13, and the circuit board 14 is used to apply an alternating voltage to the transmission coil 13 so that the transmission coil 13 emits a charged electromagnetic wave. The transmitting coil 13 is annular, and the center of the transmitting coil 13 is a circular accommodating hole 131. The circuit board 14 is disposed in the receiving hole 131, and the plane of the circuit board 14 is parallel to the plane of the transmitting coil 13. The thickness of the circuit board 14 overlaps with that of the transmitting coil 13, so that the total thickness of the two when stacked can be reduced. In addition, the bottom surface of the transmitting coil 13 is attached to a magnetism isolating sheet 16, and the magnetism isolating sheet 16 can enhance the magnetic field intensity of the transmitting coil 13 and has a high magnetic convergence effect.

As shown in fig. 1, the circumference of the transmitting coil 13 is provided with a cylindrical magnet block 15, and the magnet block 15 is used for fixedly attaching the ferromagnetic piece of the charged terminal through magnetic attraction, so that the charged terminal can be automatically aligned and positioned with the transmitting coil 13, and the wireless charging transmitting device and the charged terminal can be fixed to each other. The magnet blocks 15 in this embodiment have four uniformly distributed magnets. The upper cover 11 of the housing 10 is correspondingly provided with mounting holes 111 for accommodating the magnet blocks 15, and the mounting holes 111 have the same shape and size as the magnet blocks 15. A cylinder 112 is provided in the middle of the mounting hole 111, and the cylinder 112 is inserted into a through hole 151 of the magnet block 15 itself. In addition, since the thickness of the wireless charging transmitter is small, the 4 magnet blocks 15 can also be used for fixing the whole wireless charging transmitter on an external ferromagnetic surface through magnetic attraction. The 4 magnet blocks 15 realize double-sided attraction, and the double-sided attraction characteristics of the magnets are utilized to the maximum extent while reducing the cost.

As shown in fig. 2, the upper cover 11 and the bottom plate 12 of the housing 10 are fixed to each other by four flat head screws 17, and the four flat head screws 17 are screwed into internally threaded cylinders 112 (fig. 1), respectively. In other embodiments, the upper cover and the bottom plate can be fixedly connected with each other by glue or clamping.

As shown in fig. 2, a fixing hole 18 is provided in the middle of the bottom surface of the housing 10. The fixing hole 18 may be provided in the middle cylinder of the upper cover 11 or in the middle cylinder of the base plate 12. The fixing hole 18 is used for inserting a rod head or screwing a screw (when the fixing hole 18 is an internal thread hole) so as to fix the wireless charging transmitting device on an external object, so that the application scene is enlarged, and the practicability is improved.

The utility model discloses wireless emitter that charges places circuit board 14 in annular transmitting coil 13's centre, lets circuit board 14 thickness and transmitting coil 13's thickness form and overlaps, can reduce the gross thickness when both range upon range of for off-the-shelf thickness can reduce, and the portability obtains improving, and the outward appearance effect also obtains improving.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides an ultra-thin wireless emitter that charges, its includes transmitting coil and circuit board, the circuit board is connected with the transmitting coil electricity and is used for exerting alternating voltage to transmitting coil, its characterized in that, transmitting coil is the annular, be the accommodation hole in the middle of the transmitting coil, the circuit board sets up in the accommodation hole, the circuit board plane is parallel with the plane that transmitting coil is located.

2. The ultra-thin wireless charging transmitter of claim 1, wherein the transmitter coil has a circular receiving hole in the middle.

3. The ultra-thin wireless charging and transmitting device of claim 1, wherein a magnet block is disposed on an outer circumference of the transmitting coil, and the magnet block is used for fixedly attaching a ferromagnetic member of the terminal to be charged by magnetic attraction.

4. The ultra-thin wireless charging transmitting device of claim 3, wherein the magnet block is cylindrical.

5. The ultra-thin wireless charging transmitting device of claim 3, wherein the magnet blocks are four evenly distributed.

6. The ultra-thin wireless charging and transmitting device of claim 3, wherein the magnet block is further configured to be attached to an external ferromagnetic surface via magnetic attraction.

7. The ultra-thin wireless charging and transmitting device as claimed in any one of claims 3 to 6, wherein the transmitting coil and the circuit board are disposed in a housing, the housing is provided with a mounting hole for receiving a fixed magnet, and the mounting hole is identical to the magnet in shape and size.

8. The ultra-thin wireless charging transmitter of claim 7, wherein the housing comprises a top cover and a bottom plate, the transmitter coil and the circuit board are disposed in a space enclosed by the top cover and the bottom plate, and the mounting hole is disposed in the top cover.

9. The ultra-thin wireless charging transmitter of claim 7, wherein a fixing hole is formed in the middle of the bottom surface of the housing, and the fixing hole is used for inserting a rod head or screwing a screw to fix the wireless charging transmitter to an external object.