CN113015399B

CN113015399B - Electronic device

Info

Publication number: CN113015399B
Application number: CN202110113964.7A
Authority: CN
Inventors: 王冬生; 肖飞; 韩子骞; 张行敏; 杨秀文
Original assignee: Shenzhen Yingda Information Technology Co ltd
Current assignee: Shenzhen Yingda Information Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2023-05-09
Anticipated expiration: 2041-01-27
Also published as: CN113015399A

Abstract

The application provides an electronic device, which comprises a heating unit; a display screen; and the heat conduction unit is arranged between the heating unit and the display screen and used for guiding heat generated by the heating unit to the display screen. The electronic device of the application not only can diffuse the heat generated by the heating module out through the display screen, but also can heat the display screen by the heat generated by the heating module, and can prevent the display screen from fogging when the external temperature is low.

Description

Electronic device

Technical Field

The present disclosure relates to electronic devices, and particularly to an electronic device with a display.

The background technology is as follows:

traditional cell-phone heat dissipation mode mainly is through cell-phone backshell or frame heat dissipation, but backshell and frame can be held by the user's hand usually, and the heat dissipation is inconvenient, can also scald one's hand when the inside temperature of cell-phone is high moreover.

Although the area of the mobile phone screen is large, the multi-layer structure of the mobile phone screen causes inconvenient heat dissipation, and the heat dissipation of the screen can influence the picture quality of the screen display and reduce the service life of the screen. Therefore, although the screen has a large heat dissipation area, the mobile phone manufacturer does not develop a solution for dissipating heat through the screen.

However, with improvements in screen materials and performance, and extended lifetime of electronic devices, heat dissipation through the screen is also possible.

The present application addresses the above problems by providing a new electronic device, employing new methods and techniques to solve these problems.

Disclosure of Invention

The invention aims to solve the problems faced by the background art, and aims to provide an electronic device which can radiate heat through a display screen and further heat the display screen.

In order to achieve the above purpose, the present application adopts the following technical means:

the application provides an electronic device, which is characterized by comprising: a heating unit; a display screen; and the heat conduction unit is arranged between the heating unit and the display screen and used for guiding heat generated by the heating unit to the display screen.

Optionally, the heat generating unit includes at least one of a CPU, a communication chip, or a management chip.

Optionally, the heat conducting unit includes a contact portion for contacting the display screen.

Optionally, the contact portion is made of a transparent heat conductive material.

Optionally, the contact portion is made of a graphene film.

Optionally, the contact portion substantially covers the display screen.

Optionally, the thickness of the central portion of the contact portion is smaller than the thickness of the edge portion.

Optionally, the display screen includes a cover plate made of a thermally conductive material, and the contact portion contacts the cover plate.

Optionally, the heat conducting unit includes a heat conducting portion extending from the contact portion, the heat conducting portion extending to the heat generating unit.

Optionally, the heat conducting portion comprises a heat pipe.

Compared with the prior art, the application has the following beneficial effects:

the electronic device of the application not only can diffuse the heat generated by the heating module out through the display screen, but also can heat the display screen by the heat generated by the heating module, and can prevent the display screen from fogging when the external temperature is low.

Drawings

FIG. 1 is a perspective view of an electronic device of the present application;

FIG. 2 is a schematic diagram of a heating unit heating a display screen according to the present application;

FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 is a cross-sectional view of another embodiment of the present application;

FIG. 5 is a schematic diagram of one embodiment of the present application;

fig. 6 is a schematic diagram of yet another embodiment of the present application.

Reference numerals of the specific embodiments illustrate:

electronic device 100	Heating unit 1	Display screen 2	Heat conducting unit 3	Cover plate 4
					Display layer 5	Contact portion 6	Heat conducting part 7	Intermediate piece 8	Fitting piece 9
Scanning window 10

Detailed Description

For a better understanding of the objects, structures, features, and effects of the present application, reference should be made to the drawings and to the detailed description.

The electronic device 100 may be a mobile terminal, such as a mobile phone, a PDA (Personal Digital Assistance, a personal digital assistant), an intercom, a smart watch, etc., or may be a vehicle-mounted mobile device, an intelligent home appliance, a cash desk, etc. The structure, function and related method flow of the electronic device 100 will be described in detail below using a PDA as an example.

As shown in fig. 1 and 2, in one embodiment of the present application, an electronic device 100 having a heat generating unit 1, a display screen 2, and a heat conducting unit 3 is disclosed.

The heat generating unit 1 includes at least one of a CPU, a communication chip, or a management chip, mainly considering that a chip is a main heat generating device in the electronic apparatus 100, is a portion of the electronic apparatus 100 having the highest temperature, and the generated heat is most easily utilized.

The display screen 2 is a multi-layer structure and comprises a cover plate 4 and a display layer 5, wherein the cover plate 4 is made of glass, the display layer 5 comprises backlight and liquid crystal, and the display screen 2 can also comprise a touch layer, a polarizing layer and the like. It will be appreciated that on flexible screens, the cover plate 4 may be other flexible films, such as CPI (Colorless Polyimide) films, and even the cover plate 4 may be diamond glass (coated with nano-sized diamond crystal coating on plastic polymer sheets) because diamond has excellent thermal conductivity and facilitates the diffusion of heat on the display screen 2.

Referring to fig. 3, the heat conducting unit 3 may be a single element or a multi-element composite device, and is preferably a composite device, for example, the heat conducting unit 3 is a composite device including a contact portion 6 and a heat conducting portion 7, wherein the contact portion 6 contacts the display screen 2, and the heat conducting portion 7 extends from the contact portion 6 to the heat generating unit 1.

The contact portion 6 is made of transparent heat-conducting material, so as to avoid shielding the display screen of the display screen 2, and the contact portion 6 is arranged to cover substantially the whole display screen 2, preferably more than 90% of the display screen 2; further, the thickness of the central portion of the contact portion 6 is smaller than that of the edge portion, so that heat can be quickly diffused through the display screen 2 when being conducted to the edge portion of the contact portion 6. The contact portion 6 may be disposed between the cover plate 4 and the display layer 5, so as to conduct heat directly to the cover plate 4, directly heat the cover plate 4, prevent fog on the surface of the cover plate 4, and quickly dissipate heat through the cover plate 4, and meanwhile, the cover plate 4 provides protection for the contact portion 6. The contact portion 6 is preferably a graphene film.

It will be appreciated that the contact portion 6 may contact only a portion of the display screen 2, such as only an edge portion of the display screen 2; it will be appreciated that the contact portion 6 has the same overall thickness, with no thickness variation.

It will be appreciated that in one embodiment (not shown, the following description) the contact portion 6 may be made of an opaque material, which only contacts the edge portion of the display screen 2, and does not obstruct the display screen of the display screen 2.

It will be appreciated that the contact 6 may be part of the display 2, and thus, in reverse, one or more layers of the display 2 may be considered as the contact 6; for example, the contact portion 6 is a part of the cover 4, and when the material of the cover 4 has good heat conduction performance, the heat conduction portion 7 may directly extend from the cover 4, and the contact portion 6 is not separately provided.

The heat conducting part 7 may include an intermediate member 8 extending from the contact part 6 and a bonding member 9 contacting the heat generating unit 1. In one embodiment, as shown in fig. 4, the intermediate member 8 and the attaching member 9 may be made of the same material as the contact portion 6 and integrally formed, for example, graphene films; in other embodiments (not shown, the same applies below), the heat conducting part 7 may also include a first heat conducting silica gel contacting the contact part 6 and a second heat conducting silica gel contacting the heat generating unit 1, and heat pipes contacting the first heat conducting silica gel and the second heat conducting silica gel, respectively. It will be appreciated that other thermally conductive materials or heat transfer means (such as convection heat transfer by a fan) may be used to direct heat to the display screen 2.

It will be appreciated that a single or multiple heat generating units 1 may be used to provide heat to the display screen 2 and a single or multiple heat conducting units 3 may be used to direct heat to the display screen 2. As shown in fig. 5 and 6, the plurality of heat conducting units 3 may conduct heat through a plurality of heat conducting paths and may guide heat to different portions of the display screen 2. The single heat conducting unit 3 may also have one or more heat conducting paths: a heat conduction path directs heat from a heat generating unit 1 to the display screen 2; the multiple heat conduction paths formed by the branches may be used to guide the heat of the multiple heat generating units 1, and then the heat is concentrated to the display screen 2 or is dispersed and guided to different parts of the display screen 2 after the heat is concentrated, or the multiple heat conduction paths formed by the branches may guide the heat generated by the single heat generating unit 1 to different parts of the display screen 2.

Although the foregoing process is generally performed automatically after the electronic device 100 is turned on, that is, after the electronic device is turned on, the heat generating unit 1 starts to operate and the heat conducting unit 3 automatically guides heat to the display screen 2; it can be understood that the foregoing heating process may also be controlled, for example, a switch may be provided, and when the display screen 2 needs to be heated, the switch is turned on to conduct the heat conduction path, so as to heat the display screen 2; or when the electronic device 100 judges that the position of the electronic device enters a high temperature area from a low temperature area, the electronic device automatically heats the display screen 2; or when the electronic device 100 detects that the ambient temperature is lower than a set threshold, the heat conduction path is automatically conducted, and the display screen 2 is heated, and the threshold can be set manually, for example, 15 °, 10 °, 0 °, etc.

It will be appreciated that, in another embodiment, the electronic device 100 has a scanning window 10, so that the optical character is collected through the scanning window 10, and the heat generated by the heat generating unit 1 can be guided to the scanning window 10 by the heat conducting unit 3, so as to heat the scanning window 10, and meanwhile, the scanning window 10 is thinner than other parts of the electronic device 100, which is also more beneficial to heat dissipation, and even the scanning window 10 can be made of the transparent heat conducting material, which is more beneficial to heat dissipation.

The electronic device has the following beneficial effects:

the traditional mobile phone heat dissipation mode mainly dissipates heat through a mobile phone rear shell or a frame, but the rear shell and the frame are usually held by a user hand, so that heat dissipation is inconvenient. This application not only passes through display screen 2 diffusion with the heat that generates heat module and goes out, and the heat can be to display screen 2 heating simultaneously, prevents that display screen 2 from fogging.

The above detailed description is illustrative of the preferred embodiments of the present application and is not intended to limit the scope of the present application, so that all technical and scientific variations which employ the present invention are intended to be included within the scope of the present invention.

Claims

1. An electronic device, comprising:

a heating unit;

the display screen is of a multi-layer structure and comprises a cover plate made of a heat-conducting material;

the heat conduction unit is arranged between the heating unit and the display screen, and comprises a heat conduction part which directly extends out of the cover plate and is used for guiding heat generated by the heating unit to the display screen through a heat conduction path, wherein when the ambient temperature is detected to be lower than a threshold value, a switch is turned on to enable the heat conduction path to be conducted; and a scanning window, which is heated by guiding the heat generated by the heating unit to the scanning window through the heat conducting unit.

2. The electronic device of claim 1, wherein: the heat generating unit includes at least one of a CPU, a communication chip, or a management chip.

3. The electronic device of claim 1, wherein: the heat conduction part extends to the heating unit.