CN209861434U - Shielding cover, circuit board device and mobile terminal - Google Patents

Abstract

The utility model provides a shielding cover, circuit board device and mobile terminal, the shielding cover includes: the fan blade assembly comprises a shielding cover body, a coil assembly and a fan blade assembly; wherein the fan blade assembly comprises magnetic fan blades; the fan blade assembly is fixedly connected with the shielding cover body; the shielding cover body is provided with a through hole, and the through hole is opposite to the fan blade assembly; the coil assembly is fixed on the shielding cover body; when the coil assembly is energized, the fan blade assembly rotates within an electromagnetic field generated by the coil assembly. The embodiment of the utility model provides an in, flabellum subassembly can be through rotating will heat in the shield cover is followed distribute away in the through-hole, the radiating effect is better.

Description

Shielding cover, circuit board device and mobile terminal

technical field

The utility model relates to the technical field of communication, in particular to a shielding cover, a circuit board device and a mobile terminal.

Background technique

As mobile terminals play an increasingly important role in users' lives, the performance of mobile terminals improves faster and faster, and users use mobile terminals more and more frequently every day. Correspondingly, the heating phenomenon of the electronic components in the mobile terminal is becoming more and more serious.

In the prior art, in order to facilitate the conduction of heat generated by the electronic components to the outside of the mobile terminal, thermally conductive gel is often added between the electronic components and the shielding cover on the electronic components. However, the heat-conducting gel can only conduct the heat generated by the electronic components into the shielding cover, and cannot diffuse the heat to the surroundings. In this way, the temperature at the shielding cover is often too high, which affects the electronic components at the shielding cover. service life and stability. That is to say, in the existing mobile terminals, there is a lack of a device capable of effectively dissipating heat generated by electronic components.

Utility model content

In view of this, in order to solve the problem that the existing mobile terminals lack a device capable of effectively dissipating heat generated by electronic components, the utility model provides a shielding cover, a circuit board device and a mobile terminal.

In the first aspect, the utility model discloses a shielding cover, including: a shielding cover body, a coil assembly and a fan blade assembly; wherein,

The fan blade assembly includes a magnetic fan blade;

The blade assembly is fixedly connected to the shielding cover body;

The shielding cover body is provided with a through hole, and the through hole is opposite to the fan blade assembly;

The coil assembly is fixed on the shielding cover body;

When the coil assembly is energized, the fan blade assembly rotates within the electromagnetic field generated by the coil assembly.

In the second aspect, the utility model also provides a circuit board device, including: a circuit board body, electronic components, and the above-mentioned shielding cover; wherein,

The electronic components are arranged on the circuit board body;

The shielding cover is covered on the electronic component, and the fan blade assembly on the shielding cover is opposite to the electronic component;

The coil assembly on the shielding cover is electrically connected to the circuit board body.

In a third aspect, the embodiment of the present utility model further provides a mobile terminal, including: the above-mentioned circuit board device.

The utility model comprises the following advantages:

In the embodiment of the present utility model, the shielding cover may include a shielding cover body, a coil assembly, and a fan blade assembly; wherein, the fan blade assembly includes a magnetic fan blade; the fan blade assembly is fixedly connected to the shielding cover body; The shielding cover body is provided with a through hole, and the through hole is opposite to the fan blade assembly; the coil assembly is fixed on the shielding cover body; when the coil assembly is energized, the fan blade assembly rotate within the electromagnetic field generated by the coil assembly. In practical applications, when the shielding cover is applied to the electronic components of the mobile terminal, the coil assembly can generate an electromagnetic field when energized, and under the action of the electromagnetic field, the fan blade assembly can rotate to The heat generated by the electronic components is dissipated from the through holes, and the heat dissipation effect is better.

Description of drawings

Fig. 1 is a schematic structural view of a shielding cover of the present utility model;

Fig. 2 is a schematic diagram of the front structure of a fan blade assembly of the present invention;

Fig. 3 is a schematic view of the reverse structure of a fan blade assembly of the present invention;

Fig. 4 is a schematic structural view of a shielding cover body of the present invention;

Fig. 5 is a schematic view of the structure of a shielding cover of the present invention;

Fig. 6 is a schematic structural view of a circuit board device of the present invention;

FIG. 7 is a schematic cross-sectional structure diagram of the circuit board device shown in FIG. 6 .

Detailed ways

In order to make the above purpose, features and advantages of the utility model more obvious and understandable, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The embodiment of the present invention provides a shielding cover, which may specifically include: a shielding cover body, a coil assembly, and a fan blade assembly; wherein, the fan blade assembly includes a magnetic fan blade; the fan blade assembly and the shielding cover body fixed connection; the shielding cover body is provided with a through hole, and the through hole is arranged opposite to the fan blade assembly; the coil assembly is fixed on the shielding cover body; when the coil assembly is energized, the The blade assembly rotates within the electromagnetic field generated by the coil assembly. In practical applications, when the shielding cover is applied to the electronic components of the mobile terminal, the coil assembly can generate an electromagnetic field when energized, and the fan blade assembly can rotate under the action of the electromagnetic field, Therefore, the heat generated by the electronic components is dissipated from the through holes, and the heat dissipation effect is better.

Referring to FIG. 1 , it shows a schematic structural view of a shielding cover of the present invention, which may specifically include: a shielding cover body 10 , a coil assembly 11 and a fan blade assembly 12 ; wherein the fan blade assembly 12 includes a magnetic fan blade 121 . Of course, optionally, the fan blade assembly 12 may include a plurality of magnetic fan blades 121 , which is not specifically limited in this embodiment of the present utility model. The fan blade assembly 12 is fixedly connected to the shield cover body 10; the coil assembly 11 is fixed on the shield cover body 10; the shield cover body 10 is provided with a through hole, and the through hole is arranged opposite to the fan blade assembly 12; when the coil assembly 11 is energized , the blade assembly 12 rotates in the electromagnetic field generated by the coil assembly 11 . In the embodiment of the present invention, the fan blade assembly 12 can dissipate the heat in the shielding cover from the through hole through rotation, and the heat dissipation effect is better.

Referring to FIG. 2 , a schematic structural view of a shielding cover body of the present invention is shown. As shown in FIG. 2 , the shielding cover body 10 is provided with a through hole 101 opposite to the fan blade assembly 12 .

In practical applications, since the through hole 101 is opposite to the fan blade assembly 12, in this way, during the rotation of the fan blade assembly 12, the fan blade assembly 12 can dissipate the heat in the shielding cover from the through hole 101, thereby improving the The heat dissipation effect of the fan blade assembly 12 . Specifically, in order to increase the heat dissipation area of the through hole 101 and further improve the cooling effect of the fan blade assembly 12 , the inner diameter of the through hole 101 may be larger than the outer diameter of the fan blade assembly 12 .

In addition, in another possible embodiment of the present invention, as shown in FIG. 4 , the shielding cover body 10 may also be provided with conduction pins 102 , and the conduction pins 102 are electrically connected to the coil assembly 11 . In practical applications, the conduction pin 102 can be used to electrically connect with the circuit board in the mobile terminal, so as to realize the electrical connection between the coil assembly 11 and the circuit board, so that the coil assembly 11 can be connected in the circuit board. Power is turned on or off under the control of the electronic components on the board.

Optionally, the conduction pin 102 can be electrically connected to the coil assembly 11 through a wire. Specifically, in the case that the conduction pin 102 is electrically connected to the coil assembly 11 through a wire, the electronic component can be connected to the coil assembly. The on-off control of 11 is relatively accurate.

In another optional embodiment of the present utility model, the conduction pin 102 may include a first conduction pin and a second conduction pin; the shielding cover body 10 may include a first sub-shielding cover body and a second sub-shielding cover body. The sub-shielding cover body, the first sub-shielding cover body and the second sub-shielding cover body are conductive structures; the first conduction pin can be arranged on the first sub-shielding cover body, so The second conduction pin may be disposed on the second sub-shielding cover body. The first sub-shielding cover body is connected to the input end of the coil assembly 11 , and the second sub-shielding cover body is connected to the output end of the coil assembly 11 .

Specifically, since both the first sub-shielding body and the second sub-shielding body are conductive structures, the first sub-shielding body is connected to the input end of the coil assembly 11, and the second sub-shielding The cover body is connected to the output end of the coil assembly 11, so that the electrical connection between the first conduction pin on the first sub-shielding cover and the input end of the coil assembly 11 can be realized, and the first The electrical connection between the second conducting pin on the sub-shielding cover and the output end of the coil assembly 11 . That is, the conduction pin 102 can be electrically connected to the coil assembly 11 through the shielding cover body 10 .

In practical applications, in the case that the conduction pin 102 is electrically connected to the coil assembly 11 through the shielding cover body 10, it is possible to avoid arranging wires on the shielding cover body 10 to connect the conduction pin 102 and the coil assembly 11, thus , not only can simplify the installation process of the shielding cover, but also can save the installation space on the shielding cover body 10 .

As shown in FIG. 2 , the shielding cover body 10 may also be provided with fixing feet 103 . In practical applications, the fixing feet 103 may be used to connect with the circuit board of the mobile terminal to fix and support the shielding cover body 10 .

Optionally, the coil assembly 11 may be fixed on the side wall of the through hole of the shielding cover body 10 . In practical applications, when the coil assembly 11 is fixed on the side wall of the through hole, the distance between the coil assembly 11 and the fan blade assembly 12 can be made relatively close, so that the fan blade assembly 12 can be relatively close to the coil The electromagnetic field generated by the assembly 11 is relatively sensitive, that is, the fan blade assembly 12 can rotate under the action of a small electromagnetic field, so that the rotation efficiency of the fan blade assembly 12 can be improved.

Referring to FIG. 3 , it shows a schematic view of the structure of a shielding cover of the present invention. As shown in FIG. 5 , the coil assembly 11 includes a plurality of coils 111; the plurality of coils 111 can be equidistant along the circumference of the through hole distributed. In practical applications, when the plurality of coils 111 are equidistantly distributed along the circumference of the through hole, the electromagnetic field generated by the plurality of coils 111 can be evenly distributed along the circumference of the through hole. Since the position of the fan blade assembly 12 is opposite to the through hole, when the electromagnetic fields generated by the plurality of coils 111 are uniformly distributed along the circumference of the through hole, the electromagnetic force received by the fan blade assembly 12 is correspondingly relatively uniform, thus, The smooth rotation of the fan blade assembly 12 can be further improved, and the heat dissipation effect of the fan blade assembly 12 can be improved.

It can be understood that, in practical applications, the number of coils 111 and the number of magnetic blades 121 may or may not be equal, and the specific number of coils 111 and magnetic blades 121 may not be limited in this embodiment of the present invention.

Referring to Fig. 4, it shows a schematic view of the front structure of a fan blade assembly of the present invention, and referring to Fig. 5, a schematic view of the reverse structure of a fan blade assembly of the present invention is shown, as shown in Fig. 4 and Fig. 5 Optionally, the fan blade assembly may further include: a fixed bracket 122, a fixed column 123, and a rotating ring 124; the fan blade assembly includes a plurality of magnetic fan blades 121; the fixed bracket 122 is connected to the shielding cover body 10; the fixed column 123 is fixedly connected with the fixed bracket 122; a plurality of magnetic fan blades 121 are fixed on the rotating ring 124;

In the embodiment of the present invention, since a plurality of magnetic fan blades 121 are fixed on the rotating ring 124, and the rotating ring 124 is connected to the fixed column 123, when the coil assembly 11 is energized, the coil assembly 11 can generate an electromagnetic field. Under the action of the above electromagnetic field, the multi-magnetic fan blades 121 can drive the rotating ring 124 to rotate around the fixed column 123, so that the heat in the shielding cover can be dissipated from the through hole through the rotation of the plurality of magnetic fan blades 121.

Specifically, the magnetic fan blade 121 can be made of magnetic materials such as NdFeB, silicon steel, amorphous, nanocrystalline, ferrite, magnetic powder core, etc. The embodiment of the present utility model does not limit the specific material of the magnetic fan blade 121 .

In practical applications, in order to improve the force uniformity of the multiple magnetic blades 121 and improve the smoothness of rotation of the blade assembly 12, the central axis of the rotating ring 124 and the central axis of the through hole can coincide, and the multiple The magnetic blades 121 may be equidistantly distributed along the circumference of the rotating ring 124 .

It can be understood that, Fig. 4 and Fig. 5 only show the situation that the fan blade assembly 12 includes 16 magnetic fan blades 121, but in actual application, the number of magnetic fan blades 121 in the fan blade assembly 12 can also be for other values. For example, the number of magnetic fan blades 121 may also be 4, 5 or 10, and the embodiment of the present utility model does not limit the specific value of the magnetic fan blades 121 in the fan blade assembly 12 .

To sum up, the shielding cover described in the embodiment of the present invention has at least the following advantages:

In the embodiment of the present utility model, the shielding cover may include a shielding cover body, a coil assembly, and a fan blade assembly; wherein, the fan blade assembly includes a magnetic fan blade; the fan blade assembly is arranged on the shielding cover body; The shielding cover is provided with a through hole, and the through hole is opposite to the fan blade assembly; the coil assembly is fixed on the shielding cover body; when the coil assembly is energized, the fan blade assembly Rotate in the electromagnetic field generated by the coil assembly. In practical applications, when the shielding cover is applied to the electronic components of the mobile terminal, the coil assembly can generate an electromagnetic field when energized, and under the action of the electromagnetic field, the fan blade assembly can rotate to The heat generated by the electronic components is dissipated from the through holes, and the heat dissipation effect is better.

The embodiment of the utility model also provides a circuit board device including the above-mentioned shielding cover.

Referring to Fig. 6, a schematic structural view of a circuit board device of the present invention is shown, and referring to Fig. 7, a schematic cross-sectional structural view of the circuit board device shown in Fig. 6 is shown, and the circuit board device may specifically include: a circuit The board body 60, the electronic component 61 and the above-mentioned shielding cover 62; wherein, the electronic component 61 is arranged on the circuit board body 60; the shielding cover 62 covers the electronic component 61, and the fan blade assembly 621 on the shielding cover 62 and the electronic component 61 In contrast; the coil assembly 622 on the shielding cover 62 is electrically connected to the circuit board body 60 . In the embodiment of the present utility model, the coil assembly 622 can generate an electromagnetic field when it is energized, and under the action of the electromagnetic field, the fan blade assembly 621 can rotate to dissipate the heat generated by the electronic component 61 from the through hole of the shielding cover body 623 Dissipate from the inside, and the heat dissipation efficiency is better.

Specifically, the electronic component 61 may be an electronic component capable of generating heat such as a processor and a converter, and the embodiment of the present utility model may not limit the specific content of the electronic component 61 .

In practical applications, a temperature detection device can be set in the shielding cover 62, so that when the temperature detection device detects that the temperature in the shielding cover 62 exceeds a preset temperature, the electronic components 61 on the circuit board body 60 can The control coil assembly 622 is energized so that the coil assembly 622 generates an electromagnetic field. Under the action of the electromagnetic field, the fan blade assembly 621 can rotate to dissipate the heat generated by the electronic component 61 from the through hole of the shielding cover body 623 . The component 621 is opposite to the electronic component 61 , so that the cooling effect of the fan blade component 621 on the electronic component 61 is better.

In an optional embodiment of the present invention, the circuit board device may further include: a heat conduction structure 63 ; the heat conduction structure 63 is disposed on the surface of the electronic component 61 away from the circuit board body 60 . In practical applications, the heat conduction structure 63 can be used to concentrate the heat generated by the electronic component 61 on the surface of the electronic component 61 away from the circuit board body 60, so that the fan blade assembly 621 can dissipate the heat and avoid the heat generated by the electronic component 61. And the circuit board body 60 is overheated.

In practical applications, the heat conduction structure 63 can be made of materials with high thermal conductivity such as copper alloy, graphite heat dissipation film, heat pipe, heat conduction gel, etc. The specific material of the heat conduction structure 63 is not limited in the embodiment of the present invention.

To sum up, the circuit board device described in the embodiment of the present invention has at least the following advantages:

In the embodiment of the present utility model, the circuit board device may include: a circuit board body, an electronic component, and the above-mentioned shielding cover; wherein, the electronic component is arranged on the circuit board body; the shielding cover covers the electronic On the component, and the fan blade assembly on the shielding cover is opposite to the electronic component; the coil assembly on the shielding cover is electrically connected to the circuit board body. In practical applications, the coil assembly can generate an electromagnetic field when it is energized, and under the action of the electromagnetic field, the fan blade assembly can rotate to dissipate the heat generated by the electronic components from the through hole , better cooling efficiency.

The embodiment of the present utility model also provides a mobile terminal, which may specifically include: the above-mentioned circuit board device. According to the mobile terminal of the embodiment of the present invention, by using the circuit board device in the above-mentioned embodiments of the present invention, the coil assembly can generate an electromagnetic field when it is powered on, and under the action of the electromagnetic field, the fan blade assembly The heat generated by the electronic components can be dissipated from the through holes through rotation, and the heat dissipation effect is better.

The mobile terminal may include, but is not limited to, any one of a mobile phone, a tablet computer, and a wearable device.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

A shielding cover, a circuit board device, and a mobile terminal provided by the utility model have been introduced in detail above. In this paper, specific examples have been used to illustrate the principle and implementation of the utility model. The above embodiments The description is only used to help understand the method of the present utility model and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. As mentioned above, the contents of this specification should not be construed as limiting the present utility model.

Claims (10)

1. A shielding cover, characterized in that it comprises: a shielding cover body, a coil assembly, and a fan blade assembly; wherein, The fan blade assembly includes a magnetic fan blade; The blade assembly is fixedly connected to the shielding cover body; The shielding cover body is provided with a through hole, and the through hole is opposite to the fan blade assembly; The coil assembly is fixed on the shielding cover body; When the coil assembly is energized, the fan blade assembly rotates within the electromagnetic field generated by the coil assembly. 2 . The shielding cover according to claim 1 , wherein a conduction pin is provided on the shielding cover body, and the conduction pin is electrically connected to the coil assembly. 3 . 3. The shielding cover according to claim 2, wherein the conduction pins comprise a first conduction pin and a second conduction pin; The shielding cover body includes a first sub-shielding cover body and a second sub-shielding cover body, and both the first sub-shielding cover body and the second sub-shielding cover body are conductive structures; The first conducting pin is arranged on the first sub-shielding cover body, and the second conducting pin is arranged on the second sub-shielding cover body; The first sub-shielding cover body is connected to the input end of the coil assembly, and the second sub-shielding cover body is connected to the output end of the coil assembly. 4. The shielding cover according to claim 1, wherein the fan blade assembly further comprises: a fixing bracket, a fixing column and a rotating ring; The blade assembly includes a plurality of magnetic blades; The fixing bracket is fixedly connected to the shielding cover body; The fixing column is fixedly connected with the fixing bracket; The plurality of magnetic fan blades are fixed on the rotating ring; The rotating ring is connected to the fixed post; When the coil assembly is energized, the rotating ring rotates around the fixed post. 5. The shielding cover according to claim 4, wherein the central axis of the rotating ring coincides with the central axis of the through hole, and the plurality of magnetic fan blades are arranged along the circumference of the rotating ring. distributed equidistantly. 6. The shielding cover according to claim 1, wherein the coil assembly is fixed on a side wall of the through hole. 7 . The shielding cover according to claim 6 , wherein the coil assembly comprises a plurality of coils, and the plurality of coils are equidistantly distributed along the circumference of the through hole. 8. A circuit board device, characterized in that it comprises: a circuit board body, electronic components, and the shielding cover according to any one of claims 1 to 7; wherein, The electronic components are arranged on the circuit board body; The shielding cover is covered on the electronic component, and the fan blade assembly on the shielding cover is opposite to the electronic component; The coil assembly on the shielding cover is electrically connected to the circuit board body. 9 . The circuit board device according to claim 8 , further comprising: a heat conduction structure; the heat conduction structure is disposed on a surface of the electronic component away from the circuit board body. 10 . 10. A mobile terminal, comprising: the circuit board device according to claim 8 or 9.