Terminal flashlight structure and mobile terminal

A flashlight and terminal technology, which is applied in the electronic field, can solve problems such as poor heat dissipation, and achieve the effects of avoiding shortened life, reducing the overall temperature rise of the terminal, and lowering the temperature

Inactive Publication Date: 2017-06-13
VIVO MOBILE COMM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a terminal flashlight structure and a mobile terminal to solve the problem of poor heat dissipation in the prior art of using PCB copper to reduce the temperature of the flashlight

Method used

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  • Terminal flashlight structure and mobile terminal
  • Terminal flashlight structure and mobile terminal
  • Terminal flashlight structure and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0021] refer to figure 2 , 3 As shown, the terminal flashlight structure of the embodiment of the present invention includes: a flashlight 1; a heat-absorbing container 2 arranged on the heat dissipation path of the flashlight 1, and the heat-absorbing container 2 is filled with a heat-absorbing substance with a specific heat capacity greater than a preset threshold.

[0022] Here, the heat-absorbing container 2 can be arranged on the heat dissipation path above the flash lamp 1, such as figure 2 As shown, the heat-absorbing container 2 can also be arranged on the heat dissipation path under the flash lamp 1, such as image 3 shown.

[0023] Among them, the preset threshold can be set according to requirements, such as 2×10 3 J / (kg·℃) or 3×10 3 J / (kg·°C). By setting a preset threshold, an endothermic substance with a larger specific heat capacity is selected.

[0024] Preferably, the endothermic substance is pure water. The common substance with larger specific heat c...

no. 2 example

[0029] refer to Figure 4 As shown, the terminal flashlight structure of the embodiment of the present invention includes: a flashlight 1; a heat-absorbing container disposed on the heat dissipation path of the flashlight 1, and the heat-absorbing container is filled with a heat-absorbing substance with a specific heat capacity greater than a preset threshold. The heat-absorbing container includes an optical lens 21 arranged on the heat dissipation path above the flash lamp 1 , and the optical lens 21 includes a cavity 211 inside, and the heat-absorbing substance is filled in the cavity 211 .

[0030] Here, the optical lens 21 can be a Fresnel lens (also known as a threaded lens), which is mainly used for focusing light, that is, the light emitted by the flashlight 1 converges toward the front of the object to be photographed. The optical lens 21 includes a cavity 211 inside, and the cavity 211 is equipped with a heat-absorbing substance with a large specific heat capacity, wh...

no. 3 example

[0039] refer to Figure 6As shown, the terminal flashlight structure of the embodiment of the present invention includes: a flashlight 1; a heat-absorbing container disposed on the heat dissipation path of the flashlight 1, and the heat-absorbing container is filled with a heat-absorbing substance with a specific heat capacity greater than a preset threshold. The heat-absorbing container includes a copper tube arranged on the heat dissipation path under the flash lamp 1, and the heat-absorbing substance is housed in the copper tube.

[0040] Here, the copper material on the surface of the copper tube has a good heat conduction effect, and a heat-absorbing substance with a large specific heat capacity is installed inside the copper tube, which can quickly absorb the instantaneous high junction temperature of the flash lamp.

[0041] Optionally, the copper pipe is a flat copper pipe. The flat copper tube is under the flash, which can have a larger contact area with the flash, s...

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PUM

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Abstract

The invention provides a terminal flashlight structure and a mobile terminal and relates to the field of electronic technique. The terminal flashlight structure solves the problem that an existing manner of reducing temperature of flashlights through copper sheets laid on PCBs (printed circuit boards) is poor in cooling effects. The terminal flashlight structure comprises a flashlight and a heat absorbing container arranged on the cooling path of the flashlight, wherein the heat absorbing container is filled with heat absorbing materials with the specific heat capacity higher than a preset threshold value. According to the scheme, at the moment when the flashlight generates flash, high instantaneous junction temperature of the flashlight can be absorbed by the heat absorbing materials with high specific heat capacity, so that the temperature as well as the light attenuation of the flashlight can be effectively reduced, the device service life can be prolonged, and meanwhile, the terminal overall temperature increase can be reduced, and the user experience can be enhanced.

Description

technical field [0001] The present invention relates to the field of electronic technology, and more specifically, to a terminal flashlight structure and a mobile terminal. Background technique [0002] Almost all current smartphones have a camera function, and in order to improve the camera imaging effect in dark environments, an additional LED flash is required. However, the basic structure of an LED is a P-N junction of a semiconductor. If the junction temperature is too high, the life of the LED will be shortened and the light decay will increase. At the same time, the temperature rise of the mobile phone will also increase, which will affect the user experience. [0003] LEDs will generate junction temperature when they are working, especially at the moment of photo flashing. Due to the high power, the instantaneous junction temperature is very high, which will cause various problems such as reduced LED life, increased light decay, and excessive temperature rise of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V29/70F21V29/503G03B15/04H04M1/22G03B30/00
CPCH04M1/22G03B15/0442F21V29/503F21V29/70
Inventor 叶金山
Owner VIVO MOBILE COMM CO LTD
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