WO2012009983A1 - 提升能耗效率的方法及其移动终端和热电转换模块的用途 - Google Patents

提升能耗效率的方法及其移动终端和热电转换模块的用途 Download PDF

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Publication number
WO2012009983A1
WO2012009983A1 PCT/CN2011/072236 CN2011072236W WO2012009983A1 WO 2012009983 A1 WO2012009983 A1 WO 2012009983A1 CN 2011072236 W CN2011072236 W CN 2011072236W WO 2012009983 A1 WO2012009983 A1 WO 2012009983A1
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WO
WIPO (PCT)
Prior art keywords
thermoelectric conversion
mobile terminal
conversion module
circuit board
module
Prior art date
Application number
PCT/CN2011/072236
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English (en)
French (fr)
Inventor
白剑
Original Assignee
惠州Tcl移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州Tcl移动通信有限公司 filed Critical 惠州Tcl移动通信有限公司
Priority to EP11809172.7A priority Critical patent/EP2597770B1/en
Priority to ES11809172.7T priority patent/ES2624701T3/es
Priority to US13/811,385 priority patent/US9214619B2/en
Publication of WO2012009983A1 publication Critical patent/WO2012009983A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/203—Cooling means for portable computers, e.g. for laptops
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/263—Arrangements for using multiple switchable power supplies, e.g. battery and AC
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N19/00—Integrated devices, or assemblies of multiple devices, comprising at least one thermoelectric or thermomagnetic element covered by groups H10N10/00 - H10N15/00
    • H10N19/101—Multiple thermocouples connected in a cascade arrangement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • thermoelectric conversion module
  • the present invention relates to a mobile communication terminal with a power amplifier, a method for improving energy efficiency by using a thermoelectric conversion module, and a field of use of a thermoelectric conversion module, and more particularly, the present invention relates to a method for improving energy efficiency and The use of mobile terminals and thermoelectric conversion modules.
  • the energy efficiency of communication terminals is not very high, and most of the energy is absorbed by its power amplifier.
  • PA Power Amplifier
  • the maximum working current of the PA can reach 500 ⁇ 700 mA.
  • the WCDMA terminal is not efficient due to energy consumption. Part of the power is converted into useless heat, which causes the WCDMA terminal to be hot, and its temperature can reach 60 ° C or higher, which will affect the user's use; in addition, the high temperature also gives the battery on the WCDMA terminal. Leaving a hidden aspect of security,
  • the object of the present invention is to provide a method for improving energy efficiency and the use of the mobile terminal and the thermoelectric conversion module, which can improve the energy consumption efficiency of the mobile communication terminal.
  • a method for improving energy efficiency which is used in the interior of a mobile terminal, and includes the following steps:
  • the power amplification module electrically connected to the circuit board of the mobile terminal amplifies the communication signal of the mobile terminal, generates heat, and generates thermal energy;
  • the thermoelectric conversion module electrically connected to the circuit board at the output end absorbs thermal energy generated when the power amplification module works;
  • thermoelectric conversion module converts the absorbed thermal energy into electrical energy and outputs the electrical energy to the circuit board.
  • step C further comprises an operation of temperature detection:
  • thermoelectric conversion module respectively detecting a temperature value of a high temperature end of the thermoelectric conversion module and a low temperature end of the thermoelectric conversion module;
  • thermoelectric conversion module When the temperature difference reaches a preset temperature difference threshold, the output voltage of the thermoelectric conversion module is introduced.
  • step C further includes:
  • thermoelectric conversion module Detecting a voltage value at an output end of the thermoelectric conversion module
  • thermoelectric conversion module When the detected voltage value reaches a preset voltage threshold, the output voltage of the thermoelectric conversion module is introduced.
  • a mobile terminal for improving energy efficiency comprising a circuit board and at least one power amplifier module, wherein the power amplifier module is electrically connected to the circuit board for amplifying a communication signal of the mobile terminal;
  • the mobile terminal is further provided with a thermoelectric conversion module for absorbing thermal energy generated by the power amplifier module and converted into electrical energy, and an output end of the thermoelectric conversion module is electrically connected to the circuit board.
  • thermoelectric conversion module located on a back side of the circuit board and disposed opposite to the power amplifier; and the power amplifier is located on a front side of the circuit board.
  • thermoelectric conversion module electrically connected to a charging circuit on the circuit board for charging a battery on the mobile terminal.
  • thermoelectric conversion module is electrically connected to a power supply circuit on the circuit board for supplying power to an LED lamp on the mobile terminal.
  • thermoelectric conversion module is electrically connected to a power supply circuit on the circuit board for supplying power to a display screen on the mobile terminal.
  • thermoelectric conversion module is a thermoelectric conversion sheet adapted to the power amplifier layout.
  • thermoelectric conversion module relates to a thermoelectric conversion module, wherein a thermoelectric conversion module is disposed inside a mobile terminal, and is configured to absorb thermal energy generated when a power amplifier on the mobile terminal amplifies a communication signal; and an output end of the thermoelectric conversion module Connected to a circuit board of the mobile terminal, for outputting the converted power to a charging circuit or the power consumption module of the mobile terminal.
  • the invention provides a method for improving energy efficiency and the use of the mobile terminal and the thermoelectric conversion module.
  • the utility model adopts a thermoelectric conversion module on the mobile terminal, absorbs heat energy generated when the power amplifier works, and converts the same. It becomes electric energy to be utilized, thereby improving the energy consumption efficiency of the mobile terminal; at the same time, it also reduces the temperature rise of the mobile terminal after a long conversation, reduces the influence of the high temperature on the user's use, and improves the safety of the mobile terminal battery. Sex.
  • FIG. 1 is a flow chart of a method for improving energy efficiency of a mobile terminal according to the present invention
  • FIG. 2 is a flow chart of detecting temperature in a method for improving energy consumption efficiency of a mobile terminal according to the present invention
  • FIG. 3 is a flow chart of detecting voltage in a method for improving energy consumption efficiency of a mobile terminal according to the present invention
  • FIG. 4 is a schematic diagram of a stack structure of a mobile terminal for improving energy efficiency according to the present invention.
  • FIG. 5 is a schematic diagram of a typical power amplifier circuit of the mobile terminal for improving energy efficiency according to the present invention
  • FIG. 6 is a schematic diagram of the conversion principle of the thermoelectric conversion module applied by the mobile terminal of the present invention. ⁇ detailed description ⁇
  • the present invention provides a method for improving energy efficiency, which is used in the interior of a mobile terminal.
  • One of the specific embodiments, as shown in FIG. 1, includes the following steps:
  • Step S110 a power amplifier for amplifying the communication signal is disposed on a circuit board of the mobile terminal, is located inside the mobile terminal, and is electrically connected to the circuit board; the power amplifier generates heat during operation and generates thermal energy; For example, in the process of using the mobile terminal to perform a call, the power amplifier amplifies the transmitted and/or received communication signals during operation, and generates a large amount of heat during the working process; Step S120, being disposed inside the mobile terminal a thermoelectric conversion module that absorbs thermal energy generated by operation of the power amplifier through heat conduction; including directly and/or indirectly absorbing thermal energy by heat conduction, heat convection, and heat radiation;
  • Step S130 The thermoelectric conversion module converts the absorbed thermal energy into electrical energy, and outputs the same to the circuit board for use.
  • step S130 the operation of temperature detection and/or voltage detection may also be included in the step S130:
  • Step S131 detecting a temperature value Ti of the high temperature end of the thermoelectric conversion module, and detecting a temperature value T2 of the low temperature end of the thermoelectric conversion module;
  • step S133a When the temperature difference ⁇ ⁇ reaches or exceeds the preset temperature difference threshold ⁇ 3, that is, ⁇ ⁇ > ⁇ 3, the process proceeds to step S133a, and the voltage of the output terminal of the thermoelectric conversion module is introduced;
  • step S133b When the temperature difference ⁇ ⁇ is less than or less than the preset temperature difference threshold T3, that is, ⁇ ⁇ ⁇ ⁇ 3, the process proceeds to step S133b, and the voltage at the output of the thermoelectric conversion module is turned off.
  • Step S135 comparing the detected voltage value Ui with a preset voltage threshold U2;
  • the process proceeds to step S136a, and the voltage of the output terminal of the thermoelectric conversion module is introduced;
  • the present invention provides a mobile terminal that improves energy efficiency, and includes a circuit board and one or more power amplifier modules.
  • the power amplifier module is electrically connected to the circuit board for amplifying the mobile terminal.
  • a communication signal in one embodiment, a thermoelectric conversion module is further disposed on the mobile terminal, configured to absorb thermal energy generated by the power amplifier module and convert it into electrical energy; the thermoelectric conversion module is disposed at The output end of the thermoelectric conversion module is electrically connected to the circuit board for returning the converted electrical energy to the circuit board for use.
  • the power amplifier includes a GSM PA power amplifier 401, a WCDMA PA1 power amplifier 402, and a WCDMA PA2 power amplifier 403, both located on the front side 400a of the circuit board 400.
  • the input end of the thermoelectric conversion module 410 includes a high temperature end 410a and a low temperature end 410b; the high temperature end 410a is located on the back surface 400b of the circuit board 400, and is disposed opposite to the power amplifiers 401, 402, and 403;
  • the high temperature end 410a of the thermoelectric conversion module 410 can be closely attached to the back surface 400b of the circuit board 400.
  • the circuit board 400 located under the power amplifier 401, 402 or 403 is provided with a plurality of holes for auxiliary heat dissipation.
  • the through hole 420 such that the heat generated by the power amplifier 401, 402 or 403 during operation will be mostly radiantly radiated through the through holes 420 to the high temperature end 410a of the thermoelectric conversion module 410;
  • the power amplifier 401, 402 or 403 is in contact with the front surface 400a of the circuit board 400, and the back surface 400b of the circuit board 400 and the thermoelectric conversion module 410 are high.
  • the heat conduction effect of the end 410a contacts causes the temperature of the high temperature end 410a of the thermoelectric conversion module 410 to rise rapidly, and forms a large temperature difference with the low temperature end 400b of the thermoelectric conversion module 400, thereby enabling two different types of material properties.
  • the unit of the electromotive force ⁇ is V; as is the Seebeck coefficient of the thermoelectric conversion semiconductor material used, the unit is V/K, Ti is the temperature at the high temperature end, and the unit is K; T2 is the temperature at the low temperature end, The unit is K.
  • thermoelectric conversion module In practical applications, multiple ⁇ junctions can be connected in series to form a thermoelectric conversion module; there are also products available today, for example, Hi-Z's thermoelectric conversion module series, which can be used at a temperature of 20 °C. Effective thermoelectric conversion in the temperature range between 300 °C, the output power is between 2.5W and 19W, and the load voltage at the output is between 1.65V and 3.30V.
  • the mobile terminal of the present invention still takes a WCDMA terminal as an example.
  • the power amplifier circuit on the circuit board 400 includes three PAs, one of which is a GSM PA, and the other two are WCDMA PA1 and PA2;
  • the PA, PA1 and PA2 are all disposed on the front side of the circuit board 400.
  • the back surface of the circuit board 400 is provided with components to obtain better heat dissipation effect and EMC characteristics; and the circuit board 400 under the PA, PA1 or PA2 is further
  • a plurality of through holes 420 are provided for heat dissipation.
  • a thermoelectric conversion module 410 is disposed on the back surface 400b of the circuit board 400.
  • the thermoelectric conversion die 410 has a rectangular piece structure, and the two sides are respectively high temperature.
  • the end 410a and the low temperature end 410b; the high temperature end 410a is attached to the back surface 400b of the circuit board 400, or is connected to the back surface 400b of the circuit board 400 by a paste or elastic thermal silica gel.
  • thermoelectric conversion module The working principle of the thermoelectric conversion module is as follows. During the call, the GSM PA or WCDMA PA generates heat during operation, and a part of the heat is first transmitted to the circuit board that is in contact with it, and then transmitted to the circuit board. And contacting the thermoelectric conversion module; a part of the heat reaches the thermoelectric conversion module through heat convection and heat radiation at the heat dissipation through hole on the circuit board; and the thermoelectric conversion module absorbs heat energy generated when the PA works, as attached As shown in FIG.
  • the temperature of the high temperature end 410a rises and a temperature difference is formed with the low temperature end 410b thereof, thereby generating an electromotive force at the output end of the thermoelectric conversion module by using the Seebeck effect of the semiconductor, and connecting the output terminal to the
  • the circuit board of the WCDMA terminal can be connected to the charging circuit of the battery to charge the battery, and the power consumption can be recovered by recovering part of the power, and can also be directly connected to the power consumption module of the WCDMA terminal, for example, LED lights, display, touch screen, Bluetooth, headphones, etc., directly into the power supply circuit of these power-consuming modules That is, the same can be achieved by saving battery power to reduce energy consumption;
  • the temperature rise of the WCDMA terminal reduces the impact of high temperature on the user's use, and also reduces the safety hazard left by the high temperature to the battery of the WCDMA terminal, thereby improving the safety of the battery.
  • thermoelectric conversion module may be directly disposed on the power conversion module.
  • a high temperature end of the thermoelectric conversion module is closely disposed with the power conversion module.
  • the heat energy generated in the operation of the power conversion module is directly absorbed by heat conduction.
  • thermoelectric conversion module is respectively disposed on the back surface of the circuit board and on the front surface of the power conversion module, to fully Absorbing the secondary heat generated by the power conversion module to further improve energy consumption efficiency of the mobile terminal.
  • thermoelectric conversion module is disposed inside a mobile terminal, and is configured to absorb a power amplifier generated on the mobile terminal when amplifying a communication signal. Thermal energy, and converted into electrical energy; the output end of the thermoelectric conversion module is electrically connected to the circuit board of the mobile terminal, and is used for outputting the converted electric energy to the charging circuit of the mobile terminal or the consumption
  • the power module includes an LED lamp, a display screen, a touch screen, a Bluetooth, a headphone, and the like, and is directly outputted to the power supply circuit of the power consumption module.

Description

提升能耗效率的方法及其移动终端和热电转换模块的用途
【技术领域】
本发明涉及带功率放大器的移动通讯终端、 釆用热电转换模块提升能耗效 率的方法以及热电转换模块的用途领域， 更具体的说， 本发明涉及的是一种提 升能耗效率的方法及其移动终端和热电转换模块的用途。
【背景技术】
目前， 通讯终端的能耗效率并不是很高， 大部分的能量都被其功率放大器
Power Amplifier (简称 PA)所消耗；即使在发射时 PA最大功率的效率也只有 40% 左右， 这就意味着有 60%左右的电能将转换成热能被消耗掉。
以 WCDMA(Wideband Code Division Multiple Access,宽带码分多址)终端为 例， PA最大功率的工作电流可达 500~700mA, 该 WCDMA终端在进行长时间 的通话后， 由于能耗效率不高， 大部分的电量被转换为无用的热量， 导致所述 WCDMA终端比较烫手， 其温度可达到 60° C甚至更高， 这对于用户的使用会 造成一定影响； 此外， 高温也给该 WCDMA终端上的电池留下了安全方面的隐 、
因此， 现有技术尚有待改进和发展。
【发明内容】
本发明的目在于， 提供一种提升能耗效率的方法及其移动终端和热电转换 模块的用途， 可提升移动通讯终端的能耗效率。
本发明的技术方案如下：
一种提升能耗效率的方法， 用于移动终端的内部， 其中， 包括以下步骤：
A、与该移动终端的电路板电性连接的功率放大模块放大所述移动终端的通 讯信号， 发热并产生热能； B、输出端与所述电路板电性连接的热电转换模块吸收所述功率放大模块工 作时产生的热能；
C、 所述热电转换模块将吸收的热能转换成电能， 输出到所述电路板上。 所述的方法， 其中， 所述步骤 C还包括温度检测的操作：
C1、 分别检测所述热电转换模块的高温端和所述热电转换模块的低温端的 温度值；
C3、 当所述温度差值达到预设的温差阀值时， 引入所述热电转换模块的输 出端电压。
所述的方法， 其中， 所述步骤 C还包括：
C4、 检测所述热电转换模块输出端的电压值；
C5、 将检测的电压值与预设的电压阀值进行比较；
C6、 当检测的电压值达到预设的电压阀值时， 引入所述热电转换模块的输 出端电压。
一种提升能耗效率的移动终端， 包括一电路板和至少一功率放大器模块， 所述功率放大器模块电性连接在所述电路板上， 用于放大移动终端的通讯信号； 其中， 在所述移动终端上还设置有一用于吸收由所述功率放大器模块产生的热 能并转换成电能的热电转换模块， 所述热电转换模块的输出端电性连接在所述 电路板上。
所述的移动终端， 其中， 所述热电转换模块的高温端位于所述电路板的背 面， 相对所述功率放大器设置； 所述功率放大器位于所述电路板的正面。
所述的移动终端， 其中， 所述热电转换模块的输出端电性连接在所述电路 板上的充电电路中， 用于给所述移动终端上的电池充电。
所述的移动终端， 其中， 所述热电转换模块的输出端电性连接在所述电路 板上的供电电路中， 用于给所述移动终端上的 LED灯供电。 所述的移动终端， 其中， 所述热电转换模块的输出端电性连接在所述电路 板上的供电电路中， 用于给所述移动终端上的显示屏供电。
所述的移动终端， 其中， 所述热电转换模块为一适配所述功率放大器布局 的热电转换片。
一种热电转换模块的用途， 其中， 热电转换模块设置在移动终端的内部， 用于吸收所述移动终端上的功率放大器在放大通讯信号时产生的热能； 所述热 电转换模块的输出端电性连接在所述移动终端的电路板上， 用于将转换后的电 能输出到所述移动终端的充电电路或所述耗电模块中。
本发明所提供的一种提升能耗效率的方法及其移动终端和热电转换模块的 用途， 由于在移动终端上釆用了热电转换模块， 吸收了功率放大器工作时产生 的热能， 并将其转换成了电能加以利用， 从而提升了该移动终端的能耗效率； 同时， 也降低了移动终端长时间通话后的温升， 减少了高温给用户的使用造成 的影响， 提高了移动终端电池的安全性。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例描述中所 需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明 的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。 其中：
图 1是本发明提升移动终端能耗效率方法的流程图；
图 2是本发明提升移动终端能耗效率方法中检测温度的流程图；
图 3是本发明提升移动终端能耗效率方法中检测电压的流程图；
图 4是本发明提升能耗效率移动终端的一种堆叠结构示意图；
图 5是本发明提升能耗效率移动终端的一种典型的功放电路示意图； 图 6是本发明移动终端所应用的热电转换模块转换原理示意图。 【具体实施方式】
下面结合附图和实施例对本发明作进一步的说明。
本发明一种提升能耗效率的方法， 用于移动终端的内部， 其具体实施方式 之一， 如附图 1所示， 包括以下步骤：
步骤 S110、 用于放大通讯信号的功率放大器设置在所述移动终端的电路板 上， 位于所述移动终端的内部， 与所述电路板电性连接； 所述功率放大器工作 时发热并产生热能； 例如， 在使用所述移动终端进行通话的过程中， 所述功率 放大器工作时放大发射和 /或接收的通讯信号， 并在工作过程中产生大量热量； 步骤 S120、 设置在所述移动终端内部的热电转换模块， 通过热传导吸收所 述功率放大器工作时产生的热能； 包括以热传导、 热对流、 热辐射方式直接和 / 或间接吸收热能；
步骤 S130、 所述热电转换模块将吸收的热能转换成电能， 输出到所述电路 板上加以利用。
其中， 在所述步骤 S130中还可包括温度检测和 /或电压检测的操作：
( 1 )温度检测， 如附图 2所示
步骤 S131、 检测所述热电转换模块高温端的温度值 Ti , 和检测所述热电转 换模块低温端的温度值 T2;
步骤 S132、 将所述高温端的温度值 Ti和所述低温端的温度值 T2之间的温 度差值 Δ Τ=Τι-Τ2 , 与预设的温差阀值 Τ3进行比较；
当所述温度差值 Δ Τ达到或超过预设的温差阀值 Τ3时， 即 Δ Τ > Τ3时， 进 入步骤 S133a、 引入所述热电转换模块的输出端电压；
当所述温度差值 Δ Τ小于或未达到预设的温差阀值 T3时， 即 Δ Τ < Τ3时， 进入步骤 S133b、 断开所述热电转换模块的输出端电压引入。
( 2 ) 电压检测， 如附图 3所示
步骤 S134、 检测所述热电转换模块输出端的电压值 Ui ;
步骤 S135、 将检测的电压值 Ui与预设的电压阀值 U2进行比较； 当检测的电压值 Ul达到或超过预设的电压阀值 U2时， 即 Ul > U2时， 进入 步骤 S136a、 引入所述热电转换模块的输出端电压；
当检测的电压值 Ul小于或未达到预设的电压阀值 U2时， 即 Ul < U2时， 进 入步骤 S136b、 断开所述热电转换模块的输出端电压引入。
为此， 本发明提出了一种提升能耗效率的移动终端， 包括一电路板和一个 以上的功率放大器模块， 所述功率放大器模块电性连接在所述电路板上， 用于 放大移动终端的通讯信号； 其具体实施方式之一， 在所述移动终端上还设置有 一热电转换模块， 用于吸收由所述功率放大器模块产生的热能并将其转换成电 能； 所述热电转换模块设置在所述移动终端的内部， 所述热电转换模块的输出 端电性连接在所述电路板上， 用于将转换的电能返回到所述电路板上加以利用。
具体的， 如附图 5所示， 所述功率放大器包括一个 GSM的 PA功率放大器 401、 一个 WCDMA的 PA1功率放大器 402、 以及一个 WCDMA的 PA2功率放 大器 403 , 均位于所述电路板 400的正面 400a; 所述热电转换模块 410的输入 端包括一高温端 410a和一低温端 410b; 所述高温端 410a位于所述电路板 400 的背面 400b上， 相对所述功率放大器 401、 402和 403设置； 例如， 所述热电 转换模块 410的高温端 410a可紧贴在所述电路板 400的背面 400b上， 由于位 于所述功率放大器 401、 402或 403下方的电路板 400上会设置有艮多用于辅助 散热的通孔 420, 可使得所述功率放大器 401、 402或 403在工作过程中产生的 热量大部分都会通过这些通孔 420热辐射和 /或热对流到所述热电转换模块 410 的高温端 410a; 再加上所述功率放大器 401、 402或 403与所述电路板 400的正 面 400a接触， 以及所述电路板 400的背面 400b与所述热电转换模块 410的高 温端 410a接触产生的热传导作用，导致所述热电转换模块 410高温端 410a的温 度迅速上升， 并与该热电转换模块 400的低温端 400b形成较大的温差， 从而使 得具有两种不同类型材料特性的半导体组成的热电转换模块， 或者釆用两种不 同类型的半导体材料相连接组成的热电转换模块在其输出端产生电动势 ε： ε = as X (T2-T1) 公式 (1) 公式 (1)中， 电动势 ε的单位为 V； as 是所用热电转换半导体材料的塞贝克 (Seebeck)系数， 单位为 V/K, Ti是高温端温度， 单位为 K; T2是低温端温度， 单位为 K。
在实际应用中， 可将多个 ΡΝ结相串联构成一个热电转换模块； 如今也有产 品面世， 例如， Hi-Z公司生产的热电转换模块系列产品， 该系列热电转换模块 可在一 20 °C到 300 °C之间的温度范围内进行有效地热电转换， 输出功率达到 2.5W至 19W之间， 输出端的负载电压在 1.65V至 3.30V之间。
本发明的移动终端仍以 WCDMA终端为例， 如附图 5所示， 其电路板 400 上的功放电路包括有三个 PA, 其中一个是 GSM的 PA, 另两个是 WCDMA的 PA1和 PA2; 所述 PA、 PA1和 PA2均设置在电路板 400的正面， 电路板 400的 背面不设置元器件可以获得更好的散热效果和 EMC特性； 在所述 PA、 PA1或 PA2下方的电路板 400上还设置有多个通孔 420用于散热； 如附图 4所示， 在 所述电路板 400的背面 400b设置有热电转换模块 410; 该热电转换模 410块呈 矩形片件结构， 两面分别为高温端 410a和低温端 410b; 所述高温端 410a紧贴 所述电路板 400的背面 400b上， 或者通过膏状或具有弹性的导热硅胶连接在所 述电路板 400的背面 400b上。
所述热电转换模块的工作原理如下，该 WCDMA终端在通话期间， GSM的 PA或 WCDMA的 PA工作时产生热量， 一部分的热量先传导到与其相接触的电 路板上， 再传导到与该电路板相接触的所述热电转换模块上； 一部分的热量通 过电路板上散热通孔处的热对流和热辐射到达所述热电转换模块上； 所述热电 转换模块吸收 PA工作时产生的热能， 如附图 6所示， 导致其高温端 410a的温 度上升， 并与其低温端 410b形成温差， 由此利用半导体的塞贝克效应在所述热 电转换模块的输出端产生电动势， 将该输出端连入所述 WCDMA终端的电路板 上， 可接入其电池的充电电路中， 给电池进行充电， 通过回收部分电能来达到 提高能耗的目的， 也可直接连接到该 WCDMA终端的耗电模块上， 例如， LED 灯、 显示屏、 触摸屏、 蓝牙、 耳机等等， 直接接入这些耗电模块的供电电路中 即可， 一样可以通过节省电池电能来达到提高能耗的目的； 同时也降低了所述
WCDMA终端的温升， 减少了高温对用户使用造成的影响， 也减少了高温给所 述 WCDMA终端的电池留下的安全隐患， 提高了电池的安全性。
作为本发明移动终端的另一种具体实施方式， 所述热电转换模块也可以直 接设置在所述功率转换模块上， 例如， 所述热电转换模块的高温端与所述功率 转换模块紧贴设置， 通过热传导直接吸收所述功率转换模块工作中产生的热能。
本发明提升能耗效率的移动终端还可将上述两种方式合起来实施， 即， 在 所述电路板的背面， 以及在所述功率转换模块的正面， 分别设置所述热电转换 模块， 以充分吸收所述功率转换模块产生的副热， 进一步提高所述移动终端的 能耗效率。
此外， 本发明还提出一种热电转换模块的用途， 其具体实施方式之一， 热 电转换模块设置在一移动终端的内部， 用于吸收所述移动终端上的功率放大器 在放大通讯信号时产生的热能， 并将其转换成电能； 所述热电转换模块的输出 端电性连接在所述移动终端的电路板上， 用于将转换后的电能输出到所述移动 终端的充电电路或所述耗电模块中； 所述耗电模块包括 LED灯、 显示屏、 触摸 屏、 蓝牙、 耳机等等， 直接输出到这些耗电模块的供电电路中即可。
应当理解的是， 对本领域普通技术人员来说， 可以根据上述说明加以改进 或变换， 而所有这些改进和变换都应属于本发明所附权利要求的保护范围。

Claims

权 利 要求
1、 一种提升能耗效率的方法， 用于移动终端的内部， 其特征在于， 包括以 下步骤：
A、与该移动终端的电路板电性连接的功率放大模块放大所述移动终端的 通讯信号， 发热并产生热能；
B、输出端与所述电路板电性连接的热电转换模块吸收所述功率放大模块 工作时产生的热能；
C、 所述热电转换模块将吸收的热能转换成电能， 输出到所述电路板上。
2、 根据权利要求 1所述的方法， 其特征在于， 所述步骤 C还包括温度检测 的操作：
C1、 分别检测所述热电转换模块的高温端和所述热电转换模块的低温端 的温度值；
C3、 当所述温度差值达到预设的温差阀值时， 引入所述热电转换模块的 输出端电压。
3、 根据权利要求 1所述的方法， 其特征在于， 所述步骤 C还包括：
C4、 检测所述热电转换模块输出端的电压值；
C5、 将检测的电压值与预设的电压阀值进行比较；
C6、 当检测的电压值达到预设的电压阀值时， 引入所述热电转换模块的 输出端电压。
4、一种提升能耗效率的移动终端， 包括一电路板和至少一功率放大器模块， 所述功率放大器模块电性连接在所述电路板上， 用于放大移动终端的通讯信号； 其特征在于， 在所述移动终端上还设置有一用于吸收由所述功率放大器模块产 生的热能并转换成电能的热电转换模块， 所述热电转换模块的输出端电性连接 在所述电路板上。
5、 根据权利要求 4所述的移动终端， 其特征在于， 所述热电转换模块的高 温端位于所述电路板的背面， 相对所述功率放大器设置； 所述功率放大器位于 所述电路板的正面。
6、 根据权利要求 4所述的移动终端， 其特征在于， 所述热电转换模块的输 出端电性连接在所述电路板上的充电电路中， 用于给所述移动终端上的电池充 电。
7、 根据权利要求 4所述的移动终端， 其特征在于， 所述热电转换模块的输 出端电性连接在所述电路板上的供电电路中， 用于给所述移动终端上的 LED灯 供电。
8、 根据权利要求 4所述的移动终端， 其特征在于， 所述热电转换模块的输 出端电性连接在所述电路板上的供电电路中， 用于给所述移动终端上的显示屏 供电。
9、 根据权利要求 4至 8中任一所述的移动终端， 其特征在于， 所述热电转 换模块为一适配所述功率放大器布局的热电转换片。
10、 一种热电转换模块的用途， 其特征在于， 热电转换模块设置在移动终 端的内部， 用于吸收所述移动终端上的功率放大器在放大通讯信号时产生的热 能； 所述热电转换模块的输出端电性连接在所述移动终端的电路板上， 用于将 转换后的电能输出到所述移动终端的充电电路或所述耗电模块中。
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EP2835904A4 (en) * 2012-08-17 2015-09-23 Zte Corp DEVICE FOR IMPROVING THE ENDURANCE OF A TERMINAL AND CORRESPONDING TERMINAL
US9509174B2 (en) 2012-08-17 2016-11-29 Zte Corporation Device for improving endurance of terminal and terminal thereof

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US20130119919A1 (en) 2013-05-16
US9214619B2 (en) 2015-12-15
CN101931347A (zh) 2010-12-29
EP2597770A1 (en) 2013-05-29
EP2597770A4 (en) 2016-03-30
CN101931347B (zh) 2014-07-30
ES2624701T3 (es) 2017-07-17

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