Wireless charging device

Abstract

The utility model relates to the technical field of chargers, in particular to a wireless charging device, which comprises a cover plate provided with an accommodating cavity. The charging magnetic attraction coil assembly is arranged in the containing cavity, and the charging magnetic attraction coil assembly can move in the containing cavity; the circuit board is arranged in the accommodating cavity, and the circuit board is electrically connected with the charging magnetic suction coil assembly; and the rear cover is arranged at the opening of the accommodating cavity of the cover plate in a covering manner. According to the utility model, separation of the mobile phone and the charging coil caused by mobile phone movement can be avoided, and smooth charging is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a charger technical field especially relates to a wireless charging device. BACKGROUND

[0002] With the use of electronic products more and more widely, charging equipment is used in various occasions. Among them, wireless charger can be well adapted to the use of different occasions without using charging line. When charging with wireless charger, not any position of charger tray can charge, need to make the charging coil on the electronic product opposite the charging coil fixed in the charger, two mutually attract fixed after can charge. But if using wireless charger on the vehicle in motion, electronic product may be in the process of vehicle shaking due to the small supporting area of charger tray, when the suction force is insufficient, the electronic product cannot be fixed, there is the risk of falling, leading to unable to charge.

[0003] Therefore, a wireless charging device is needed to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a wireless charging device, can avoid due to electronic product movement leads to separate with the charging coil, guarantees the smooth progress of charging.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] Wireless charging device, including:

[0007] Cover plate, the cover plate has the accommodation cavity;

[0008] Charging magnetic attraction coil assembly, the charging magnetic attraction coil assembly is arranged in the accommodation cavity, and the charging magnetic attraction coil assembly can be active in the accommodation cavity;

[0009] Circuit board, the circuit board is arranged in the accommodation cavity, and the circuit board is electrically connected with the charging magnetic attraction coil assembly;

[0010] Rear cover, the rear cover is covered in the opening of the accommodation cavity of the cover plate.

[0011] In some embodiments, the charging magnetic attraction coil assembly includes a magnetic attraction coil and a plurality of elastic members, the plurality of elastic members are arranged along the circumference of the magnetic attraction coil, one end of the elastic member is connected with the magnetic attraction coil, the other end of the elastic member is connected with the cover plate, and the magnetic attraction coil is electrically connected with the circuit board.

[0012] In some embodiments, the magnetic attraction coil comprises a fixing member, a coil part and a magnetic attraction member, the elastic member is connected with the fixing member, the coil part and the magnetic attraction member are arranged on the fixing member, and the coil part is electrically connected with the circuit board.

[0013] In some embodiments, the fixing member has an annular mounting cavity, the coil part is arranged in the annular mounting cavity, and the magnetic attraction member is embedded between the coil part and the wall surface of the mounting cavity.

[0014] In some embodiments, a plurality of the magnetic attraction members are arranged along the circumference of the annular mounting cavity.

[0015] In some embodiments, one end of the elastic member away from the magnetic attraction coil has a connecting hole, a connecting column is fixedly arranged in the accommodating cavity, and the elastic member is sleeved on the connecting column through the connecting hole.

[0016] In some embodiments, the cover plate and the connecting column are in an integrated structure.

[0017] In some embodiments, a heat dissipation assembly is arranged in the accommodating cavity, and the heat dissipation assembly is located on the side of the circuit board away from the charging magnetic attraction coil assembly.

[0018] In some embodiments, the heat dissipation assembly comprises a fan, and the rear cover has an air outlet, and the fan is arranged opposite to the air outlet.

[0019] In some embodiments, the side of the cover plate away from the circuit board has a placing groove.

[0020] The utility model discloses a beneficial effect:

[0021] The utility model provides a wireless charging device, the accommodating cavity of cover plate movably sets up charging magnetic attraction coil assembly, and the circuit board is arranged in the accommodating cavity, and the circuit board is electrically connected with charging magnetic attraction coil assembly, and the rear cover is covered and is arranged at the opening of the accommodating cavity of cover plate and is used for closing the accommodating cavity of cover plate. Because charging magnetic attraction coil assembly can move in the accommodating cavity, when the electronic product moves relative to the cover plate, the charging magnetic attraction coil assembly in the inside of the cover plate can move synchronously with the electronic product, thereby avoiding the separation of the electronic product and the charging magnetic attraction coil assembly, and ensuring the smooth charging. DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiment of the utility model, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to the contents of the embodiment of the utility model and these drawings.

[0023] Fig. 1 is a front view of the wireless charging device of the utility model;

[0024] Fig. 2 is an exploded view of the wireless charging device of the utility model.

[0025] In the drawings:

[0026] 1, cover plate; 11, placing groove; 2, charging magnetic attraction coil assembly; 21, fixing piece; 22, magnetic attraction piece; 23, coil part; 24, elastic piece; 3, circuit board; 4, back cover; 5, heat dissipation assembly. DETAILED DESCRIPTION

[0027] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings.

[0028] In this application, the terms "comprise", "comprising", "including", "including", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0029] In this application, the terms "connection", "combination", "coupling", "mounting" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, the direct connection refers to the connection of two parts or components without the need for an intermediate part, and the indirect connection refers to the connection of two parts or components with at least one intermediate part. The two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0030] In this application, those skilled in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0031] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, it is also understood in the context that when referring to one element connected to another element "on" or "under", it can be directly connected to another element "on" or "under" or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, the left below, the right below, the front below and the back below, etc.

[0032] In order to avoid the electronic product from moving away from the charging coil and ensure the smooth charging when charging the electronic product by using the wireless charger, as shown in Figs. 1-2 The utility model provides a wireless charging device. The wireless charging device comprises a cover plate 1, a charging magnetic attraction coil assembly 2, a circuit board 3 and a back cover 4.

[0033] The cover plate 1 has a receiving cavity. The charging magnetic attraction coil assembly 2 is arranged in the receiving cavity and can move in the receiving cavity. The circuit board 3 is arranged in the receiving cavity and electrically connected with the charging magnetic attraction coil assembly 2. The back cover 4 is arranged at the opening of the receiving cavity of the cover plate 1.

[0034] In the process of charging the electronic product by using the wireless charging device, when the electronic product moves relative to the cover plate 1, the charging magnetic attraction coil assembly 2 inside the cover plate 1 can move synchronously with the electronic product, so that the electronic product and the charging magnetic attraction coil assembly 2 are prevented from being separated, and the charging is ensured to be carried out smoothly.

[0035] In some embodiments, the charging magnetic attraction coil assembly 2 comprises a magnetic attraction coil and a plurality of elastic members 24. The plurality of elastic members 24 are arranged along the circumference of the magnetic attraction coil. One end of the elastic member 24 is connected with the magnetic attraction coil, and the other end of the elastic member 24 is connected with the cover plate 1. The magnetic attraction coil is electrically connected with the circuit board 3. By arranging the plurality of elastic members 24 in the receiving cavity of the cover plate 1, when the charged electronic product moves relative to the cover plate 1, the magnetic attraction coil moves synchronously under the action of the magnetic attraction force between the charged electronic product and the magnetic attraction coil, and the elastic member 24 is elastically deformed, so that the charged electronic product and the magnetic attraction coil are prevented from being separated, and the charging work is ensured to be carried out smoothly.

[0036] In some embodiments, the elastic member 24 is provided with four, made of flexible elastic material such as rubber. After the electronic product to be charged is placed on the cover plate 1, the electronic product attracts the magnetic attraction coil in the moving process, the elastic member 24 is elastically deformed, and the magnetic attraction coil and the electronic product are moved to the corresponding position to realize charging. After the electronic product is charged and removed, the elastic member 24 can drive the magnetic attraction coil to reset. Since the flexible elastic material is used as the elastic member 24, the magnetic attraction coil can move up and down and left and right, thereby adapting to different types of electronic products, and can move with the movement of the electronic product.

[0037] In some embodiments, the magnetic attraction coil includes a fixing member 21, a coil portion 23 and a magnetic attraction member 22, the elastic member 24 is connected with the fixing member 21, the coil portion 23 and the magnetic attraction member 22 are arranged on the fixing member 21, and the coil portion 23 is electrically connected with the circuit board 3. By arranging the fixing member 21, it is convenient to install the coil portion 23 and the magnetic attraction member 22, and it is convenient to connect with the elastic member 24. By arranging the magnetic attraction member 22, it can be magnetically attracted to the corresponding charging coil on the electronic product, and can effectively charge during the charging of the electronic product.

[0038] In some embodiments, the fixing member 21 has an annular mounting cavity, the coil portion 23 is arranged in the annular mounting cavity, and the magnetic attraction member 22 is embedded between the coil portion 23 and the wall surface of the mounting cavity. By arranging the mounting cavity, it is convenient to install the coil and the magnetic attraction member 22.

[0039] In some embodiments, a plurality of magnetic attraction members 22 are arranged along the circumference of the annular mounting cavity. By arranging a plurality of magnetic attraction members 22, the adsorption force of magnetic attraction can be improved, so that the electronic product can be effectively guaranteed to cooperate with the coil to realize wireless charging during the attraction with the electronic product to be charged. In other embodiments, the magnetic attraction member 22 can adopt a whole ring-shaped magnet, which is not limited here.

[0040] In some embodiments, the elastic member 24 has a connecting hole at the end away from the magnetic attraction coil, a connecting column is fixedly arranged in the accommodating cavity, and the elastic member 24 is sleeved on the connecting column through the connecting hole. By arranging the connecting hole and the connecting column, it is convenient to quickly install the elastic member 24 on the cover plate 1. Moreover, the elastic member 24 can be quickly removed after failure. In other embodiments, the end of the elastic member 24 can also be fixed on the cover plate 1 by using adhesive or screws, which is not limited here.

[0041] In some embodiments, the cover plate 1 and the connecting column are integrated. Specifically, the cover plate 1 and the connecting column can be integrally formed by an injection molding process, which can ensure the connection strength between the cover plate 1 and the connecting column, and is convenient for manufacturing. In other embodiments, a threaded connection can also be used, a threaded hole is formed on the cover plate 1, and the connecting column is screwed with the threaded hole. The connecting column can be installed on the cover plate 1, and the connecting column can be replaced after being broken without replacing the entire cover plate 1. Specifically, the connection form of the cover plate 1 and the connecting column can be designed according to actual needs, and is not limited here.

[0042] In some embodiments, the accommodation cavity is provided with a heat dissipation assembly 5, and the heat dissipation assembly 5 is located on the side of the circuit board 3 away from the charging magnetic coil assembly 2. By arranging the heat dissipation assembly 5, the heat generated during the charging process and the heat of the circuit board 3 can be quickly discharged, thereby ensuring the charging efficiency of the wireless charging device, and protecting the circuit board 3. In the present embodiment, the circuit board 3 adopts a PCB board, and the heat dissipation assembly 5 can effectively reduce the temperature of the electronic elements of the PCB board.

[0043] In some embodiments, the heat dissipation assembly 5 includes a fan, and the rear cover 4 has an air outlet, and the fan is arranged opposite to the air outlet. Through the above arrangement, the fan can be fixed by the rear cover 4, and at the same time, during the rotation of the fan for heat dissipation, the heat can be discharged from the air outlet of the rear cover 4. Through the operation of the fan, the air circulation is driven, thereby accelerating the heat exchange between the heat generated by the circuit board 3 and the magnetic coil and the air. In other embodiments, the heat dissipation assembly 5 can also adopt a closed liquid cooling bag or a heat dissipation fin. The liquid cooling bag can directly exchange heat with the circuit board 3, thereby reducing the temperature of the circuit board 3. The heat dissipation fin can increase the heat dissipation area. The specific form of the heat dissipation assembly 5 is not limited here.

[0044] In some embodiments, the side of the cover plate 1 away from the circuit board 3 has a placing groove 11. By arranging the placing groove 11, the position of the electronic product on the cover plate 1 can be limited, thereby ensuring that the magnetic coil can be moved to the corresponding position to cooperate with the electronic product to be charged for charging.

[0045] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or modifications can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A wireless charging device, characterized by, include: Cover plate (1), the cover plate (1) having a receiving cavity; A charging magnetic coil assembly (2) is disposed in the receiving cavity and is movable within the receiving cavity; Circuit board (3), the circuit board (3) is disposed in the receiving cavity, and the circuit board (3) is electrically connected to the charging magnetic coil assembly (2); The rear cover (4) is provided over the opening of the receiving cavity of the cover plate (1).

2. The wireless charging device of claim 1, wherein, The charging magnetic coil assembly (2) includes a magnetic coil and a plurality of elastic elements (24). The plurality of elastic elements (24) are arranged circumferentially around the magnetic coil. One end of the elastic element (24) is connected to the magnetic coil, and the other end of the elastic element (24) is connected to the cover plate (1). The magnetic coil is electrically connected to the circuit board (3).

3. The wireless charging device of claim 2, wherein, The magnetic coil includes a fixing member (21), a coil part (23) and a magnetic attracting member (22). The elastic member (24) is connected to the fixing member (21). The coil part (23) and the magnetic attracting member (22) are disposed on the fixing member (21), and the coil part (23) is electrically connected to the circuit board (3).

4. The wireless charging device of claim 3, wherein, The fixing member (21) has an annular mounting cavity, the coil part (23) is disposed in the annular mounting cavity, and the magnetic suction member (22) is embedded between the coil part (23) and the wall of the mounting cavity.

5. The wireless charging device of claim 4, wherein, Multiple magnetic suction elements (22) are arranged at circumferential intervals along the annular mounting cavity.

6. The wireless charging device of claim 2, wherein, The elastic element (24) has a connecting hole at one end away from the magnetic coil, and a connecting post is fixedly provided in the receiving cavity. The elastic element (24) is sleeved on the connecting post through the connecting hole.

7. The wireless charging device of claim 6, wherein, The cover plate (1) and the connecting column are an integrated structure.

8. The wireless charging device of claim 1, wherein, A heat dissipation component (5) is provided in the cavity, and the heat dissipation component (5) is located on the side of the circuit board (3) away from the charging magnetic coil assembly (2).

9. The wireless charging device of claim 8, wherein, The heat dissipation assembly (5) includes a fan, the rear cover (4) has an air outlet, and the fan is positioned relative to the air outlet.

10. The wireless charging device of claim 1, wherein, The cover plate (1) has a placement groove (11) on the side opposite to the circuit board (3).

Images