CN216491803U

CN216491803U - Terminal device

Info

Publication number: CN216491803U
Application number: CN202220077410.6U
Authority: CN
Inventors: 娄椿杰
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-05-10
Anticipated expiration: 2032-01-12

Abstract

The disclosure provides a terminal device, and belongs to the technical field of heat dissipation. The terminal equipment comprises an equipment main body, a rear cover and a heat dissipation module. The equipment main part is connected with the back lid, and forms between equipment main part and the back lid and hold the chamber, holds chamber and external intercommunication. The heat dissipation module is located and holds the chamber, and the heat dissipation module includes that the vibration takes place the layer, and the vibration takes place the layer and can produce deformation vibration. In the vibration generation layer vibration process, when the volume grow of vibration generation layer, the pressure grow in the holding chamber, then the hot air that holds in the chamber flows out, when the volume grow of vibration generation layer, the pressure grow in the holding chamber, then the cold air of external flows into to holding in the chamber. The continuous deformation vibration of layer takes place through the vibration, holds the continuous exchange of hot-air and the external cold air in the chamber for the heat that terminal equipment produced continuously distributes away, and terminal equipment's heat-sinking capability is higher.

Description

Terminal device

Technical Field

The disclosure relates to the technical field of heat dissipation, in particular to a terminal device.

Background

With the development of science and technology, the functions of terminal devices such as mobile phones and the like are more and more powerful.

Correspondingly, the power consumption of the terminal equipment is also getting larger and larger, and the problem of heat generation of the terminal equipment is increasingly highlighted, so that how to improve the heat dissipation capability of the terminal equipment is a key technical problem.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a terminal device, which can solve the technical problems existing in the related art, and the technical scheme of the terminal device is as follows:

the present disclosure provides a terminal device, which includes a device main body, a rear cover, and a heat dissipation module;

the equipment main body is fixedly connected with the rear cover, an accommodating cavity is formed between the equipment main body and the rear cover, and the accommodating cavity is communicated with the outside;

the heat dissipation module is located hold the chamber, and with the back lid is fixed mutually, heat dissipation module includes the vibration and takes place the layer, the vibration takes place the layer and can drive through producing deformation vibration the air that holds in the chamber exchanges with external air.

In one possible implementation, the apparatus main body has a battery and a power supply adjustment circuit for adjusting a direct current output from the battery to an alternating current or a pulse current;

the vibration generation layer is provided with a piezoelectric material and is electrically connected with the battery through the power supply adjusting circuit.

In one possible implementation, the power supply adjustment circuit is also electrically connected to a controller of the device main body.

In one possible implementation, the vibration generating layer has a vibration direction perpendicular to the rear cover.

In one possible implementation, the vibration frequency of the vibration generating layer is greater than 20 Hz.

In a possible implementation manner, the heat dissipation module further includes a graphite layer, the graphite layer and the vibration generation layer are stacked and arranged along a thickness direction of the terminal device, and the graphite layer is located between the vibration generation layer and the rear cover.

In a possible implementation manner, the heat dissipation module further includes a double-sided tape, and two sides of the double-sided tape are respectively bonded to the graphite layer and the rear cover.

In one possible implementation, the heat dissipation module covers an inner surface of the rear cover.

In one possible implementation, a gap is provided between the heat dissipation module and the device body.

In a possible implementation manner, the accommodating cavity is communicated with the outside through at least one of a receiver hole, a microphone hole, a speaker hole and a charging hole.

The technical scheme provided by the disclosure at least comprises the following beneficial effects:

the present disclosure provides a terminal device including a device main body, a rear cover, and a heat dissipation module. The equipment body and the rear cover form a containing cavity, the containing cavity is communicated with the outside, and the heat dissipation module is located in the containing cavity. The heat dissipation module comprises a vibration generation layer, and the vibration generation layer can generate deformation vibration.

In the vibration generation layer vibration process, when the volume grow of vibration generation layer, the pressure grow in the holding chamber, then the hot air that holds in the chamber flows out, when the volume grow of vibration generation layer, the pressure grow in the holding chamber, then the cold air of external flows into to holding in the chamber. Through the continuous deformation vibration of vibration emergence layer, the hot air in the chamber and the cold air in the external world constantly exchange to terminal equipment's heat-sinking capability has been improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. In the drawings:

fig. 1 is a schematic cross-sectional view of a terminal device provided in an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a heat dissipation module according to an embodiment of the disclosure;

fig. 3 is a schematic diagram of a terminal device provided by an embodiment of the present disclosure exhausting hot air;

fig. 4 is a schematic diagram of a terminal device provided by an embodiment of the present disclosure sucking in cold air;

FIG. 5 is a schematic diagram of an associated circuit of a vibration-generating layer provided by an embodiment of the present disclosure;

fig. 6 is a schematic circuit diagram of a vibration generation layer according to an embodiment of the present disclosure.

Illustration of the drawings:

1. the device comprises a device main body 1a, a middle frame 1b, a screen 1c and an electric device;

10. the microphone comprises an accommodating cavity, 101, earphone holes, 102, microphone holes, 103, horn holes, 104 and charging holes;

11. a battery 12, a power supply adjusting circuit 13 and a controller;

2. a rear cover;

3. heat dissipation module, 31, vibration generation layer, 32, graphite layer, 33, double faced adhesive tape.

With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

The terminology used in the description of the embodiments of the present disclosure is for the purpose of describing the embodiments of the present disclosure only and is not intended to be limiting of the present disclosure. Unless otherwise defined, technical or scientific terms used in the embodiments of the present disclosure should have the ordinary meaning as understood by those having ordinary skill in the art to which the present disclosure belongs. The use of "first," "second," and similar terms in the description and claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes. "plurality" means two or more unless expressly limited otherwise.

The disclosed embodiment provides a terminal device, as shown in fig. 1-4, the terminal device includes a device main body 1, a rear cover 2, and a heat dissipation module 3. Equipment main part 1 is connected with back lid 2, and forms between equipment main part 1 and the back lid 2 and hold chamber 10, holds chamber 10 and external intercommunication. The heat dissipation module 3 is located in the accommodating cavity 10 and fixed with the rear cover 2. The heat dissipation module 3 includes a vibration generation layer 31, and the vibration generation layer 31 can drive the air in the accommodation chamber 10 to exchange with the outside air by generating deformation vibration.

The embodiment of the present disclosure does not limit the type of the terminal device, and the terminal device is, for example, a mobile phone, a tablet, an intelligent wearable device, and the like.

The apparatus body 1 is a main part of the terminal apparatus, and in some examples, as shown in fig. 1, the apparatus body 1 includes a middle frame 1a, a screen 1b, and an electric device 1c, and the electric device 1c may include a battery, a main board, and the like. The screen 1b is fixedly connected with the first side of the middle frame 1a, the rear cover 2 is fixedly connected with the second side of the middle frame 1a, and an accommodating cavity 10 is formed between the rear cover 2 and the middle frame 1 a. The electric device 1c and the heat dissipation module 3 are located in the accommodating cavity 10, the electric device 1c is fixed with the middle frame 1a, and the heat dissipation module 3 is fixed with the rear cover 2.

The accommodating cavity 10 is communicated with the outside, and the implementation manner of communicating the accommodating cavity 10 with the outside is not limited in the embodiment of the present disclosure, and in some examples, special heat dissipation holes may be formed in the device main body 1 and/or the rear cover 2, and the heat dissipation holes are used for exchanging hot air inside the accommodating cavity 10 with external cold air. In other examples, as shown in fig. 3 and 4, in the case where the terminal device itself has the receiver hole 101, the microphone hole 102, the speaker hole 103, and/or the charging hole 104, such as the terminal device is a mobile phone or a tablet, the accommodating chamber 10 may also communicate with the outside through at least one of the receiver hole 101, the microphone hole 102, the speaker hole 103, and the charging hole 104.

The heat dissipation module 3 is located in the receiving cavity 10. The heat dissipation module 3 has a vibration generation layer 31, and the vibration generation layer 31 is a flexible layer and can generate deformation vibration, where the deformation vibration refers to the periodic change in the shape of the vibration generation layer 31, for example, the periodic change in the volume of the vibration generation layer 31.

When the volume of the vibration generating layer 31 becomes larger during the vibration of the vibration generating layer 31, the pressure in the accommodating chamber 10 becomes larger, and the hot air in the accommodating chamber 10 flows out (the state shown in fig. 3). When the volume of the vibration generation layer 31 becomes smaller, the pressure in the accommodation chamber 10 becomes smaller, and the outside cold air flows into the accommodation chamber 10 (the state shown in fig. 4). Through the continuous deformation vibration of the vibration generation layer 31, the hot air in the accommodating cavity 10 and the cold air outside are continuously exchanged, so that the heat dissipation capacity of the terminal equipment is improved.

In addition, the heat dissipation module 3 provided by the embodiment of the present disclosure is fixed to the rear cover 2, but not to the middle frame 1a of the device main body 1, so that the battery compartment space is not occupied, the strength of the middle frame 1a is not weakened, and the strength of the middle frame 1a is high.

The vibration direction of the vibration generation layer 31 is not limited in the embodiment of the present disclosure, and in some examples, as shown by the arrow direction in fig. 2, the vibration direction of the vibration generation layer 31 is perpendicular to the rear cover 2.

In the following, a possible implementation of the vibration generating layer 31 is provided:

in some examples, as shown in fig. 5, the apparatus main body 1 has a battery 11 and a power supply adjusting circuit 12, and the power supply adjusting circuit 12 is configured to adjust a direct current output from the battery 11 to an alternating current or a pulse current. The vibration generating layer 31 has a piezoelectric material, and the vibration generating layer 31 is electrically connected to the battery 11 through the power supply adjustment circuit 12.

Since the vibration generation layer 31 has the piezoelectric material, when there is a constantly changing pressure difference between both sides of the vibration generation layer 31, atoms inside the vibration generation layer 31 vibrate back and forth in order to maintain charge balance, so that the shape of the vibration generation layer 31 changes, that is, deformation vibration is generated. This process, which may be referred to as the inverse piezoelectric effect, effects the conversion of electrical energy to mechanical energy.

It is understood that the power supply adjusting circuit 12 can adjust the amplitude of the vibration generating layer 31 by adjusting the amplitude of the output alternating current or pulse current, and can adjust the vibration frequency of the vibration generating layer 31 by adjusting the frequency of the output alternating current or pulse current.

The embodiment of the present disclosure does not limit the trigger condition for the vibration of the vibration generation layer 31, and in some examples, when the terminal device is in the power-on state, the vibration generation layer 31 is always in the vibration state.

In other examples, the vibration generating layer 31 may start to vibrate only when the temperature of the terminal device is greater than a certain temperature threshold. Illustratively, as shown in fig. 6, the power supply adjusting circuit 12 is also electrically connected to the controller 13 of the apparatus main body 1, and the controller 13 may control the on/off of the power supply adjusting circuit 12 based on the detected temperature. For example, the controller 13 may receive data detected by each temperature sensor, and control the power supply adjusting circuit 12 to be turned on when the detected temperature is greater than a certain temperature threshold.

In other examples, the vibration and stop of the vibration generating layer 31 may be controlled by a user, and the controller 13 controls the power supply adjusting circuit 12 to be turned on after receiving an instruction from the user.

The vibration frequency of the vibration generation layer 31 is not limited in the embodiments of the present disclosure, and in some examples, the vibration frequency of the vibration generation layer 31 is greater than 20 Hz. That is, the vibration generation layer 31 emits ultrasonic waves when vibrating, and thus is not perceived by the user.

In some examples, in a special scene, for example, a game scene, the vibration frequency of the vibration generation layer 31 may be reduced to less than 20Hz, and the vibration amplitude may be increased, so that the user can perceive the vibration feedback of the terminal device, and the game experience of the user is increased while achieving more efficient heat dissipation.

In some examples, the heat dissipation module 3 provided by the embodiments of the present disclosure may include only the vibration generation layer 31.

In other examples, in order to further improve the heat dissipation capability of the terminal device, as shown in fig. 2, the heat dissipation module 3 further includes a graphite layer 32, the graphite layer 32 and the vibration generation layer 31 are stacked in the thickness direction of the terminal device, and the graphite layer 32 is located between the vibration generation layer 31 and the rear cover 2.

The graphite layer 32 is connected to the rear cover 2 in a thermally conductive manner. The graphite layer 32 has excellent thermal conductivity and can uniformly disperse local heat.

The heat in the accommodation chamber 10 is conducted to the graphite layer 32 through the vibration generation layer 31, and then the graphite layer 32 uniformly disperses the heat to be transmitted to the rear cover 2, and then the heat can be radiated through the rear cover 2.

The embodiment of the present disclosure does not limit the connection manner between the graphite layer 32 and the back cover 2, and in some examples, as shown in fig. 2, the heat dissipation module 3 further includes a double-sided tape 33, and two sides of the double-sided tape 33 are respectively bonded to the graphite layer 32 and the back cover 2. That is, the heat dissipation module 3 is adhered to the inner surface of the rear cover 2.

The connected mode of pasting for the contact between heat dissipation module 3 and the back lid 2 is inseparabler, is favorable to more holding the heat in the chamber 10 and conducts to back lid 2 through heat dissipation module 3, and distributes away through back lid 2.

In other examples, the heat dissipation module 3 may be connected to the rear cover 2 by other fixing methods such as screws.

The area of the inner surface of the rear cover 2 occupied by the heat dissipation module 3 is not limited in the embodiments of the present disclosure, and in some examples, as shown in fig. 1, the heat dissipation module 3 covers the inner surface of the rear cover 2, so that the entire rear cover 2 can be used for heat dissipation, the heat dissipation area is large, and the heat dissipation capability of the terminal device is strong.

Of course, the heat dissipation module 3 may cover only a portion of the rear cover 2, which is not limited in the embodiment of the present disclosure.

In some examples, as shown in fig. 1, the heat dissipation module 3 has a gap with the apparatus body 1. Illustratively, the heat dissipation module 3 has a gap with the electric device 1c of the apparatus body 1, thereby providing a space required for the deformation vibration of the heat dissipation module 3.

The above description is only for the purpose of illustrating the preferred embodiments of the present disclosure and is not to be construed as limiting the present disclosure, but rather as the subject matter of the present disclosure is to be accorded the full scope and breadth of the present disclosure.

Claims

1. A terminal device is characterized in that the terminal device comprises a device main body (1), a rear cover (2) and a heat dissipation module (3);

the equipment main body (1) is fixedly connected with the rear cover (2), an accommodating cavity (10) is formed between the equipment main body (1) and the rear cover (2), and the accommodating cavity (10) is communicated with the outside;

the heat dissipation module (3) is located hold in chamber (10), and with back lid (2) are fixed mutually, heat dissipation module (3) are including vibration generation layer (31), vibration generation layer (31) can be through producing deformation vibration drive hold the air in chamber (10) and the air exchange in the external world.

2. The terminal device according to claim 1, wherein the device body (1) has a battery (11) and a power supply adjusting circuit (12), the power supply adjusting circuit (12) adjusting a direct current output from the battery (11) to an alternating current or a pulse current;

the vibration generation layer (31) has a piezoelectric material, and the vibration generation layer (31) is electrically connected to the battery (11) through the power supply adjustment circuit (12).

3. The terminal device according to claim 2, wherein the power supply adjustment circuit (12) is also electrically connected to a controller (13) of the device body (1).

4. A terminal device according to any of claims 1-3, characterized in that the vibration generating layer (31) has a vibration direction perpendicular to the back cover (2).

5. A terminal device according to any of claims 1-3, characterized in that the vibration-generating layer (31) has a vibration frequency of more than 20 Hz.

6. A terminal device according to any one of claims 1 to 3, wherein the heat dissipation module (3) further comprises a graphite layer (32), the graphite layer (32) and the vibration generation layer (31) are stacked in the thickness direction of the terminal device, and the graphite layer (32) is located between the vibration generation layer (31) and the rear cover (2).

7. Terminal device according to claim 6, characterized in that the heat-dissipating module (3) further comprises a double-sided adhesive tape (33), both sides of the double-sided adhesive tape (33) being bonded to the graphite layer (32) and the rear cover (2), respectively.

8. A terminal device according to any of claims 1-3, characterized in that the heat sink module (3) covers the inner surface of the back cover (2).

9. A terminal device according to any of claims 1-3, characterized in that there is a gap between the heat sink module (3) and the device body (1).

10. A terminal device according to any of claims 1-3, characterized in that the receiving cavity (10) communicates with the outside through at least one of a receiver hole (101), a microphone hole (102), a speaker hole (103) and a charging hole (104).