WO2016165493A1

WO2016165493A1 - Heat dissipation apparatus

Info

Publication number: WO2016165493A1
Application number: PCT/CN2016/074461
Authority: WO
Inventors: 杜泳锋; 李军
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-08-05
Filing date: 2016-02-24
Publication date: 2016-10-20
Also published as: CN106455408A

Abstract

A heat dissipation apparatus, comprising: a heat transfer module including sealed pipelines, in which a heat transfer liquid storage case for storing heat transfer liquid is set, the heat transfer liquid storage case fully contacts with heating areas within a terminal, and one or more power generator modules are set in the heat transfer pipelines, and the fins of the power generator modules are configured in the heat transfer pipelines, and, expanded by absorbing heat, the heat transfer liquid flows along the preset path of the heat transfer pipelines to push the fins of the power generator modules to rotate to generate power energy, and finally flows back to the heat transfer liquid storage case; the power generator modules, pushed by the heat transfer liquid, generate power energy and transfer the power energy to a power management module; a power management module, for charging batteries for a terminal by using the received power energy. The embodiments of the present invention can both rapidly dissipate heat for portable terminal products, and generate electric power with the energy recycled by making use of the fluid of the expanded heat transfer liquid due to heat absorption and store the electric power to increase the endurance time of portable terminal products.

Description

Heat sink

Technical field

This document relates to, but is not limited to, the field of communications, and in particular to a heat sink.

Background technique

With the continuous improvement of the performance of portable terminal products, the problem of battery life and heat dissipation has become more and more prominent. In the related art, the battery life mainly depends on the large-capacity battery or the mobile power source; the heat dissipation method of the portable terminal product is mainly based on the internal structure, a large amount of graphite heat-dissipating stickers, the single-point heat generated by the main chip is homogenized and transmitted to the metal steel plate of the portable terminal product. On the top, natural heat is dissipated, and the heat generated is not used effectively.

A thermoelectric power generation device can be used alone. The temperature difference semiconductor has a hot surface and a cold surface. The greater the temperature difference between the two sides, the more electric energy is generated. Therefore, the cold surface requires additional heat dissipation equipment to dissipate the heat transferred from the hot surface. Most of the related technologies focus on heat dissipation by adding a heat dissipation module in a portable terminal product, and have not found use of heat dissipation while completing heat dissipation. The prior art related art in which the flow of liquid generates electric energy and then charges the battery in the portable terminal product.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide a heat dissipating device to recover waste heat while dissipating heat.

The embodiment of the invention provides a heat dissipating device, which is applicable to the terminal, and includes:

a heat conduction module comprising a closed heat conduction pipe, wherein the heat conduction pipe is provided with a thermal fluid storage box for storing a thermal fluid, the thermal fluid storage case is in full contact with a heat generating region in the terminal, and the heat conducting pipe is disposed There are one or more generator modules, and the blades of the generator module are disposed in the heat conduction pipe, and after the heat transfer liquid absorbs heat, the flow flows along a reserved path of the heat conduction pipe to push the generator module The blades rotate to generate electrical energy, and finally return to the thermal fluid storage box;

The generator module is powered by the thermal fluid to generate electrical energy, and the electrical energy is output to the rectifier module;

The power management module charges the battery of the terminal with the received power.

Optionally, the heat dissipating device further has the following features: further comprising:

a rectifier module configured to process the received alternating current into direct current, and then output the direct current to the power management module;

The power management module is further configured to charge the battery of the terminal by using the received direct current.

Optionally, the heat sink further has the following features:

a heat-removing pipe is disposed in the heat-conducting pipe before the heat-conducting liquid flows back to the heat-conducting liquid storage box, and the anti-reverse spring piece is opened in a single direction. The thrust generated when the thermal fluid accumulates to a specified amount pushes the anti-reciprocal shrapnel to return to the thermal fluid storage case.

Optionally, the heat sink further has the following features:

The gap between the thermal fluid storage case and the heat generating region in the terminal is filled with silver-containing silicone grease.

Optionally, the heat sink further has the following features:

From the thermal fluid storage case to the heat conducting conduit of the first engine module through which the thermal fluid flows, the inner diameter is from wide to narrow.

Optionally, the heat sink further has the following features:

The heat pipe from the first engine module to the second engine module through which the heat transfer fluid flows has a height difference from high to low.

Optionally, the heat sink further has the following features:

The thermal fluid includes: methyl silicone oil.

Optionally, the heat sink further has the following features:

The heat conductive pipe and the thermal fluid storage case are made of any one of copper, gold, silver, and aluminum.

Optionally, the heat sink further has the following features:

The engine module is a permanent magnet DC generator.

In summary, the embodiment of the present invention provides a heat dissipating device, which can not only rapidly dissipate heat for a portable terminal product, but also utilize the fluidity of the thermal fluid to absorb heat after thermal expansion to generate energy and store it to increase the life of the portable terminal product. time.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a schematic view of a heat sink according to an embodiment of the present invention;

2 is a schematic diagram showing the composition of a heat conduction module and a power generator module according to Embodiment 1 of the present invention;

3 is a schematic view showing the composition of a heat conduction module and a power generator module according to Embodiment 2 of the present invention.

Preferred embodiment of the invention

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The embodiment of the invention provides a heat dissipation device for a portable terminal product, as shown in FIG. 1 , comprising: a heat conduction module, a power generation module and a power management module.

The generator module is configured to generate electric energy by being pushed by the thermal fluid, and output the electric energy to the rectifier module;

A power management module is configured to charge the battery of the terminal with the received power.

The heat dissipation device of this embodiment may further include a rectification module configured to convert the received alternating current Switching to DC power, and then outputting DC power to the power management module, the power management module is further configured to charge the battery of the terminal by using the received DC power.

The material of the heat conduction pipe and the thermal fluid storage box in this embodiment may be a metal material having a large thermal conductivity such as gold, silver, copper or aluminum.

In an alternative embodiment, the inner diameter of the heat transfer conduit from the thermal fluid storage cartridge to the first engine module through which the thermal fluid flows is from wide to narrow.

In an alternative embodiment, the thermally conductive conduit from the first engine module to the second engine module through which the thermal fluid flows is of a height difference from high to low.

Example 1

In this embodiment, the heat conduction module and the generator module are nested together to form a core component of the device, as shown in FIG. 2, comprising: a thermal fluid 1, a closed copper tube 2, a

generator

3, 4, and a gravity stop shrapnel 5 .

The thermal fluid storage box of the heat conduction module is made of copper, which is in full contact with the heat generating area in the portable terminal product, and is filled with silver-containing silicone grease at the contact gap to ensure contact area and heat conduction efficiency.

When the thermal fluid 1 absorbs the heat dissipated by the portable terminal product, the volume expands and flows in the direction indicated by the arrow, and the blades of the generator 3 are driven to rotate to generate electric energy. The thermal fluid 1 flows through the generator 3 and continues to flow along the copper tube, and uses its own gravity potential energy to drive the blades of the generator 4 to generate electric energy, and finally reaches the gravity anti-ballistic sheet 5, when accumulating a certain amount of thermal fluid, The gravity-stopping elastic piece 5 is ejected downward by the gravity of the thermal fluid 1, and the thermal fluid 1 is returned to the thermal fluid storage box. During the entire circulation process, the heat contained in the thermal fluid 1 is continuously conducted through the copper tubes and the generator. The electric energy generated by the

generators

3, 4 charges the battery in the portable terminal product through the rectifier module and the power management chip.

Example 2

A heat dissipating device applicable to a portable terminal product of the embodiment includes: a heat conduction module, a permanent magnet DC generator, a power management module, and a battery module. The heat conduction module and the micro permanent magnet DC generator are nested together to form a core portion of the heat dissipation device of the embodiment, and the power generated by the residual heat is used to charge the battery through the power management chip.

The module consisting of the heat conduction module and the permanent magnet DC generator nesting is shown in Figure 3. Among them, 11 is Thermal fluid methyl silicone oil, 12 is a closed copper tube, 13, 14 is a permanent magnet DC generator, 15 is a gravity stop shrapnel. The thermal fluid storage box of the heat conduction module is made of copper, which is in full contact with the heat generating area inside the portable terminal product, and is filled with silver-containing silicone grease at the contact gap to ensure contact area and heat conduction efficiency.

Methyl silicone oil 11 has a large thermal expansion coefficient and can be used as a heat carrier. Therefore, a suitable amount of methyl silicone oil is filled in the closed copper tube as a thermal fluid.

The closed copper tube 12 is designed in the shape of a bell mouth with a wide bottom and a narrow top. When the thermal fluid 11 is thermally expanded and flows in the direction indicated by the arrow, since the forward path is narrowed, the thermal fluid 11 is pressed by the pipe wall, and the thermal fluid 11 receives a certain pressure to push the blade of the permanent magnet DC generator 13 to rotate. Electrical energy. The thermal fluid 11 flows through the permanent magnet DC generator 13 and continues to flow along the downwardly inclined copper tube 12, and uses its own gravitational potential energy to push the blades of the permanent magnet DC generator 14 to generate electric energy, and finally reaches the gravity stop shrapnel 15 When accumulating a certain amount of the thermal fluid 11, the gravity anti-ballistic spring 15 is bounced downward by the gravity of the thermal fluid 11, and the thermal fluid 11 is returned to the thermal fluid storage box. Throughout the circulation process, the heat contained in the thermal fluid 11 is continuously conducted through the copper tube and the generator. The electric energy generated by the permanent magnet direct

current generators

13, 14 charges the battery through the power management chip.

Application scenario

The heat dissipating device of this embodiment can be used as an internal enhancement module of a portable terminal product, and a portable projector is taken as an example.

The heat source of the portable projector is the central processor and the projector bulb. The copper box with the thermal fluid is in full contact with the top surface of the central processor of the portable projector, and the gap is filled with silver grease; the projector bulb is attached with graphite thermal paste. The graphite thermal paste is simultaneously attached to the copper box containing the thermal fluid. When the portable projector starts working, the central processor and the projector bulb generate a large amount of heat. The thermal fluid absorbs the heat generated by the portable projector through the copper box, and the thermal fluid that absorbs a large amount of heat expands and expands along the copper tube. The path flows, and a certain driving force is obtained during the flow of the thermal fluid due to the extrusion of the inner wall of the copper pipe to drive the rotation of the blades of the permanent magnet DC generator nested in the copper pipe to generate electric energy, in the process of returning the thermal fluid to the copper box. The gravity potential of the thermal fluid is used to drive the blades of the permanent magnet DC generator nested in the copper tube to generate electric energy, and the electric energy generated by the two generators is processed by the power management chip to charge the battery of the portable projector and increase the battery life. . Part of the heat absorbed by the thermal fluid is dissipated through the copper tube, and part of it is dissipated through the permanent magnet DC generator to achieve heat dissipation. fruit.

The heat sink of this embodiment has the following advantages:

1. High efficiency, the use of copper tube and thermal fluid to form a heat conduction module, can quickly and efficiently conduct heat out, reduce the temperature.

2. Energy saving and environmental protection, the fluidity after the heat absorbed by the thermal fluid drives the micro-generator to work, and energy recovery is performed to minimize the power consumption of the terminal equipment.

The embodiments described above are only one of the more preferred embodiments of the present invention, and the usual variations and replacements made by those skilled in the art within the scope of the technical solutions of the present invention, such as the material and structure of the heat conduction module, and the DC generator Simple modification or replacement of related information such as selection should be within the scope of protection of the technical solution of the present invention.

Industrial applicability

The above technical solution can not only rapidly dissipate the portable terminal product, but also utilize the fluidity of the thermal fluid to absorb heat and thermal expansion to recover energy and store it to increase the life time of the portable terminal product.

Claims

A heat sink suitable for a terminal, comprising:

a heat conduction module comprising a closed heat conduction pipe, wherein the heat conduction pipe is provided with a thermal fluid storage box for storing a thermal fluid, the thermal fluid storage case is in full contact with a heat generating region in the terminal, and the heat conducting pipe is disposed There are one or more generator modules, and the blades of the generator module are disposed in the heat conduction pipe, and after the heat transfer liquid absorbs heat, the flow flows along a reserved path of the heat conduction pipe to push the generator module The blades rotate to generate electrical energy, and finally return to the thermal fluid storage box;

The generator module is configured to generate electric energy by being pushed by the thermal fluid, and output the electric energy to a power management module;

The power management module is configured to charge the battery of the terminal with the received power.
The heat dissipation device of claim 1 further comprising:

a rectifier module configured to process the received alternating current into direct current, and then output the direct current to the power management module;

The power management module is further configured to charge the battery of the terminal by using the received direct current.
The heat sink of claim 1 wherein:

a heat-removing pipe is disposed in the heat-conducting pipe before the heat-conducting liquid flows back to the heat-conducting liquid storage box, and the anti-reverse spring piece is opened in a single direction. The thrust generated when the thermal fluid accumulates to a specified amount pushes the anti-reverse elastic piece to return the thermal fluid to the thermal fluid storage case.
The heat sink of claim 1 wherein:

The gap between the thermal fluid storage case and the heat generating region in the terminal is filled with silver-containing silicone grease.
The heat sink of claim 1 wherein:

The heat conduction from the thermal fluid storage case to the first engine module through which the thermal fluid flows The pipe has an inner diameter ranging from wide to narrow.
The heat sink of claim 5 wherein:

The heat pipe from the first engine module to the second engine module through which the heat transfer fluid flows has a height difference from high to low.
A heat sink according to any one of claims 1 to 6, wherein:

The thermal fluid includes: methyl silicone oil.
A heat sink according to any one of claims 1 to 6, wherein:

The heat conductive pipe and the material of the thermal fluid storage case include any one of copper, gold, silver, and aluminum.
The heat sink of claim 1 wherein:

The engine module includes a permanent magnet DC generator.