CN102546031A - 无线功率传输系统、无线功率传送装置与无线功率接收装置 - Google Patents
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Abstract
本发明涉及一种无线功率传输系统,其包括无线功率传送装置与无线功率接收装置。无线功率传送装置包括有信号产生器与超音波输出单元。超音波输出单元用以依据信号产生器所输出的信号而输出聚焦超音波,以便无线功率接收装置接收聚焦超音波而据以转换成电能量。而无线功率接收装置包括有超音波接收单元与功率转换单元。超音波接收单元用以接收上述无线功率传送装置所输出的聚焦超音波,并据以转换成电能量。而功率转换单元用以将超音波接收单元所输出的电能量进行功率转换,以提供给后端电路使用。本发明还涉及一种无线功率传送装置与无线功率接收装置。本发明无线功率传输系统、无线功率传送装置与无线功率接收装置适于生物医学方面的应用。
Description
技术领域
本发明涉及无线功率传送的技术领域,尤其涉及一种利用聚焦超音波来达到无线功率传送的无线功率传输系统及其无线功率传送装置与无线功率接收装置。
背景技术
就目前而言,已有利用RF信号来进行无线功率传输的技术,例如美国专利US 7068991号就有探讨这类的技术及其应用。
然而,RF信号在生物医学方面的应用(例如应用于植入式医学装置)有其限制。主要原因有三个,其中一个原因,是RF信号所产生的电磁波可能对生物有害。而另一个原因,是RF信号在一般的频率范围内(例如3KHz~300MHz)无法做近距离(例如1公尺以内)聚焦。第三个原因,是RF信号在超高频(例如300MHz以上)时其信号易被物质吸收而不易传输。
发明内容
因此,本发明提供一种无线功率传送装置,其能提高无线功率传输的效率,且适于生物医学方面的应用。
本发明另提供一种无线功率接收装置,其适合与上述的无线功率传送装置搭配使用。
本发明再提供一种无线功率传输系统,其包括有上述的无线功率传送装置与上述的无线功率接收装置。
为达上述目的,本发明提出一种无线功率传送装置。其用以与无线功率接收装置搭配使用。此无线功率传送装置包括有信号产生器与超音波输出单元。超音波输出单元用以依据信号产生器所输出的信号而产生并输出聚焦超音波,以便上述无线功率接收装置接收聚焦超音波而据以转换成电能量。
在本发明的一个实施例中,所述的超音波输出单元具有至少一个超音波输出探头。
在本发明的一个实施例中,所述的超音波输出单元是采用单一超音波输出探头,以便以固定聚焦方式进行输出声场的控制。
在本发明的一个实施例中,所述的超音波输出单元是采用多个超音波输出探头,以便以动态聚焦方式进行输出声场的控制。
在本发明的一个实施例中,所述的超音波输出单元还包括有透镜。此透镜用以将超音波输出探头所输出的超音波转换成上述的聚焦超音波。
在本发明的一个实施例中,所述的无线功率传送装置还包括有功率放大器。此功率放大器耦接于信号产生器与超音波输出单元之间,用以放大信号产生器所产生的信号。
在本发明的一个实施例中,所述的无线功率传送装置还包括有编码器。此编码器用以输出编码数据至信号产生器,以便信号产生器依据此编码数据产生编码过的信号。
在本发明的一个实施例中,所述的无线功率传送装置还包括有控制单元。此控制单元用以控制上述的编码器产生上述的编码数据。
此外,本发明另提出一种无线功率接收装置,其包括有超音波接收单元与功率转换单元。超音波接收单元用以接收无线功率传送装置所输出的聚焦超音波,并据以转换成电能量。而功率转换单元用以将超音波接收单元所输出的电能量进行功率转换,以提供给后端电路使用。
在本发明的一个实施例中,所述的超音波接收单元具有至少一个超音波接收探头。
在本发明的一个实施例中,所述的超音波接收单元是采用单一超音波接收探头,以便以固定聚焦方式进行接收声场的控制。
在本发明的一个实施例中,所述的超音波接收单元是采用单一超音波接收探头,以便以固定聚焦方式进行接收声场的控制。
在本发明的一个实施例中,所述的无线功率接收装置还包括有译码器。此译码器用以对功率转换单元的输出信号进行译码,以取得译码数据,并提供此译码数据给后端电路,以便后端电路根据此译码数据进行对应的操作。
在本发明的一个实施例中,所述的无线功率接收装置还包括有能量储存单元。此能量储存单元用以储存功率转换单元所输出的电能量,以便进一步供应给后端电路使用。
另外,本发明再提出一种无线功率传输系统,其包括有无线功率传送装置与无线功率接收装置。无线功率传送装置又包括有信号产生器与超音波输出单元。超音波输出单元用以依据信号产生器所输出的信号而产生并输出聚焦超音波。而无线功率接收装置又包括有超音波接收单元与功率转换单元。超音波接收单元用以接收聚焦超音波,并据以转换成电能量。而功率转换单元则用以将超音波接收单元所输出的电能量进行功率转换,以提供给后端电路使用。
本发明无线功率传输系统、无线功率传送装置与无线功率接收装置利用聚焦超音波来进行无线功率传输。由于聚焦超音波在空间中有明确的能量传送位置,因此可将能量集中于接收装置,提升无线功率传输的效率。此外,由于超音波不具辐射性,因此适用于生物医学方面的应用(例如应用于植入式医学装置)。另外,聚焦超音波也可用来传输信息,达到更多方面的应用。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,而可依照说明书的内容予以实施,并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂,以下特举较佳实施例,并配合附图,详细说明如下。
附图说明
图1为本发明所提供的一个实施例的无线功率传输系统的框图。
图2为本发明的超音波输出探头的侧视剖面图。
【主要元件符号说明】
120:无线功率传送装置
122:控制单元
124:编码器
126:信号产生器
128:功率放大器
130:超音波输出单元
130-1:超音波输出探头
130-2:透镜
140:无线功率接收装置
142:超音波接收单元
142-1:超音波接收探头
144:功率转换单元
146:译码器
148:能量储存单元
160:后端电路。
具体实施方式
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效,以下结合附图及较佳实施例,对依据本发明提出的无线功率传输系统、无线功率传送装置与无线功率接收装置其具体实施方式、方法、步骤、结构、特征及功效,详细说明如后。
有关本发明的前述及其他技术内容、特点及功效,在以下配合参考图式的较佳实施例详细说明中将可清楚的呈现。通过具体实施方式的说明,可对本发明为达成预定目的所采取的技术手段及功效有一更加深入且具体的了解,然而所附图式仅是提供参考与说明之用,并非用来对本发明加以限制。
图1为本发明所提供的一个实施例的无线功率传输系统的框图。如图1所示,此无线功率传输系统包括有无线功率传送装置120与无线功率接收装置140,而此无线功率传输系统用以提供后端电路160所需的电能量(即操作电源)。无线功率接收装置140与后端电路160可以是再进一步整合成一个装置,例如是整合成植入式医学装置。以下将进一步说明无线功率传送装置120与无线功率接收装置140的实现方式。
无线功率传送装置120主要包括有信号产生器126与超音波输出单元130。超音波输出单元130用以依据信号产生器126所输出的信号而产生并输出聚焦超音波。而此超音波输出单元130具有至少一个超音波输出探头(如标示130-1所示)。假若超音波输出单元130是采用单一超音波输出探头,便可采用固定聚焦方式来进行输出声场的控制。而若超音波输出单元130是采用多个超音波输出探头,那么便可采用动态聚焦方式来进行输出声场的控制。此外,若超音波输出单元130是采用多个超音波输出探头,那么这些超音波输出探头可以是以一维阵列的方式来排列,或是以二维阵列的方式来排列。
相较于传统的超音波输出探头的输出端为一个平面,本发明所采用的超音波输出探头的输出端具有弧形凹陷,以便产生聚焦超音波,如图2所示。请参考图2,其为本发明的超音波输出探头的侧视剖面图。请再参考图1,而若超音波输出单元130是采用传统的超音波输出探头,那么超音波输出单元130便需额外采用透镜(如标示130-2所示),以便利用此透镜130-2将超音波输出探头130-1所输出的超音波转换成上述的聚焦超音波。
较佳地,无线功率传送装置120还可进一步采用功率放大器128,并将此功率放大器128耦接于信号产生器126与超音波输出单元130之间,以便利用此功率放大器128放大信号产生器126所产生的信号。此外,当需利用聚焦超音波传输数据或信息时,那么无线功率传送装置120也可进一步采用编码器124,以便利用此编码器124输出编码数据至信号产生器126,使得信号产生器126可以依据此编码数据产生编码过的信号。甚至,无线功率传送装置120还可进一步采用控制单元122,以便利用此控制单元122控制编码器124产生上述的编码数据。
至于无线功率接收装置140,其主要包括有超音波接收单元142与功率转换单元144。超音波接收单元142用以接收无线功率传送装置120所输出的聚焦超音波,并据以转换成电能量。而功率转换单元144则用以将超音波接收单元142所输出的电能量进行功率转换,以提供给后端电路160使用。此超音波接收单元142具有至少一个超音波接收探头(如标示142-1所示)。假若超音波接收单元142是采用单一超音波接收探头,便可采用固定聚焦方式来进行接收声场的控制。而若超音波接收单元142是采用多个超音波接收探头,那么便可采用动态聚焦方式来进行接收声场的控制。此外,若超音波接收单元142是采用多个超音波接收探头,那么这些超音波接收探头可以是以一维阵列的方式来排列,或是以二维阵列的方式来排列。
较佳地,若是在无线功率传送装置120中采用编码器124,使得无线功率传送装置120所输出的聚焦超音波中也载有编码器产生的编码数据,那么无线功率接收装置140中可进一步采用译码器146,以对应进行译码操作。也就是说,可以利用此译码器146对功率转换单元144的输出信号进行译码,以取得译码数据。如此,译码器146便可提供此译码数据给后端电路160,以便后端电路160根据此译码数据进行对应的操作。当然,无线功率接收装置140还可进一步采用能量储存单元148,以便利用此能量储存单元148储存功率转换单元144所输出的电能量,进而能进一步供应给后端电路160使用。
综上所述,本发明利用聚焦超音波来进行无线功率传输。由于聚焦超音波在空间中有明确的能量传送位置,因此可将能量集中于接收装置,提升无线功率传输的效率。此外,由于超音波不具辐射性,因此适用于生物医学方面的应用(例如应用于植入式医学装置)。另外,聚焦超音波也可用来传输信息,达到更多方面的应用。
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,虽然本发明已以较佳实施例揭露如上,然而并非用以限定本发明,任何熟悉本专业的技术人员,在不脱离本发明技术方案范围内,当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。
Claims (15)
1.一种无线功率传送装置,用以与无线功率接收装置搭配使用,其特征是:所述无线功率传送装置包括:
信号产生器;以及
超音波输出单元,依据所述信号产生器所输出的信号而产生并输出聚焦超音波,以便所述无线功率接收装置接收所述聚焦超音波而据以转换成电能量。
2.根据权利要求1所述的无线功率传送装置,其特征是:所述超音波输出单元具有至少一超音波输出探头。
3.根据权利要求2所述的无线功率传送装置,其特征是:所述超音波输出单元采用单一超音波输出探头,以便以固定聚焦方式进行输出声场的控制。
4.根据权利要求2所述的无线功率传送装置,其特征是:所述超音波输出单元是采用多个超音波输出探头,以便以动态聚焦方式进行输出声场的控制。
5.根据权利要求2所述的无线功率传送装置,其特征是:所述超音波输出单元还包括:
透镜,所述透镜用以将所述超音波输出探头所输出的超音波转换成所述聚焦超音波。
6.根据权利要求1所述的无线功率传送装置,其特征是:所述无线功率传送装置还包括:
功率放大器,耦接于所述信号产生器与所述超音波输出单元之间,用以放大所述信号产生器所产生的信号。
7.根据权利要求1所述的无线功率传送装置,其特征是:所述无线功率传送装置还包括:
编码器,用以输出编码数据至所述信号产生器,以便所述信号产生器依据所述编码数据产生编码过的信号。
8.根据权利要求7所述的无线功率传送装置,其特征是:所述无线功率传送装置还包括:
控制单元,用以控制所述编码器产生所述编码数据。
9.一种无线功率接收装置,用以与无线功率传送装置搭配使用,其特征是:所述无线功率接收装置包括:
超音波接收单元,用以接收所述无线功率传送装置所输出的聚焦超音波,据以转换成电能量;以及
功率转换单元,用以将所述超音波接收单元所输出的电能量进行功率转换,以提供给后端电路使用。
10.根据权利要求9所述的无线功率接收装置,其特征是:所述超音波接收单元具有至少一个超音波接收探头。
11.根据权利要求10所述的无线功率接收装置,其特征是:所述超音波接收单元是采用单一超音波接收探头,以便以固定聚焦方式进行接收声场的控制。
12.根据权利要求10所述的无线功率接收装置,其特征是:所述超音波接收单元是采用多个超音波接收探头,以便以动态聚焦方式进行接收声场的控制。
13.根据权利要求9所述的无线功率接收装置,其特征是:所述无线功率接收装置还包括:
译码器,用以对所述功率转换单元的输出信号进行译码,以取得译码数据,并提供所述译码数据给所述后端电路,以便所述后端电路根据所述译码数据进行对应的操作。
14.根据权利要求9所述的无线功率接收装置,其特征是:所述无线功率接收装置还包括:
能量储存单元,用以储存所述功率转换单元所输出的电能量,以便进一步供应给所述后端电路使用。
15.一种无线功率传输系统,其特征是:其包括:
无线功率传送装置,包括:
信号产生器;以及
超音波输出单元,依据所述信号产生器所输出的信号而产生并输出聚焦超音波;以及
无线功率接收装置,包括:
超音波接收单元,用以接收所述聚焦超音波,并据以转换成电能量;以及
功率转换单元,用以将所述超音波接收单元所输出的电能量进行功率转换,以提供给后端电路使用。
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US20120157019A1 (en) | 2012-06-21 |
TW201228176A (en) | 2012-07-01 |
CN102546031B (zh) | 2016-02-24 |
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