WO2011063573A1 - 一种电源装置及电子秤 - Google Patents

一种电源装置及电子秤 Download PDF

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Publication number
WO2011063573A1
WO2011063573A1 PCT/CN2009/075394 CN2009075394W WO2011063573A1 WO 2011063573 A1 WO2011063573 A1 WO 2011063573A1 CN 2009075394 W CN2009075394 W CN 2009075394W WO 2011063573 A1 WO2011063573 A1 WO 2011063573A1
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WO
WIPO (PCT)
Prior art keywords
power supply
supply device
airbag
generator
unit
Prior art date
Application number
PCT/CN2009/075394
Other languages
English (en)
French (fr)
Inventor
周冠达
Original Assignee
深圳百华电子有限公司
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Filing date
Publication date
Application filed by 深圳百华电子有限公司 filed Critical 深圳百华电子有限公司
Publication of WO2011063573A1 publication Critical patent/WO2011063573A1/zh

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G23/00Auxiliary devices for weighing apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D9/00Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20Wind motors characterised by the driven apparatus
    • F03D9/25Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00Application
    • F05B2220/60Application making use of surplus or waste energy
    • F05B2220/602Application making use of surplus or waste energy with energy recovery turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Definitions

  • the invention belongs to the field of electronic scales, and in particular to a power supply device and an electronic scale.
  • the existing electronic scales are all powered by ordinary batteries, such as button-type primary lithium batteries or ordinary 7-cell batteries, one battery can be used for 6 months to 18 months, and the service life is short; long-term use Frequent battery replacement can cause the battery's contacts to malfunction.
  • the battery contains trace elements such as iron, zinc, manganese, and mercury, it can cause environmental pollution after recycling.
  • the battery used in the export product will be Many limitations have led to higher costs for the entire electronic scale.
  • Another object of an embodiment of the present invention is to provide an electronic scale having the above power supply device, which has high reliability.
  • a power supply device comprising: an airflow generating unit, a pneumatic motor connected to the airflow generating unit through a pipe, and a generator; compressing the airflow generating unit to generate a gas flow; and the air motor is acting in the airflow Rotating down; a rotating air motor drives the generator to operate.
  • An electronic scale comprising: a control module and a power supply device, a sensor, a display module and a button module respectively connected to the control module; wherein the power supply device is the power supply device.
  • the power supply device uses the airflow generating unit to cause the air motor to drive the generator to generate electricity. Reduced battery recycling pollution, green and environmentally friendly; improved reliability.
  • the electronic scale provided by the invention is powered by the above power supply device, avoids the problems of return, exchange and contact failure caused by battery problems, improves reliability, and solves the problem that many restrictions are encountered in the export of electronic products. .
  • FIG. 1 is a schematic structural diagram of a module of an electronic scale according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a power supply device according to an embodiment of the present invention.
  • FIG. 3 is a circuit diagram of a voltage stabilizing unit according to an embodiment of the present invention.
  • FIG. 4 is a circuit diagram of an electronic scale provided by an embodiment of the present invention.
  • FIG. 5A is a schematic structural diagram of an airflow generating unit in which a pedal and an airbag are movably connected according to an embodiment of the present invention.
  • FIG. 5B is an exploded perspective view of FIG. 5A;
  • FIG. 6A is a schematic structural diagram of another airflow generating unit in which a pedal is movably connected to an airbag according to an embodiment of the present invention
  • Figure 6B is an exploded perspective view of Figure 6A;
  • FIG. 7 is a schematic structural view of an airflow generating unit in which an elastic material is provided in an airbag and the pedal is movably connected to the airbag according to an embodiment of the present invention
  • FIG. 8A is a schematic view showing the structure of an airflow generating unit in which a pedal is horizontally disposed on an upper surface of an airbag according to an embodiment of the present invention
  • Figure 8B is an exploded perspective view of Figure 8A;
  • FIG. 9 is an exploded perspective view of a pneumatic motor and a generator provided by an embodiment of the present invention.
  • the power supply device uses the airflow generating unit to cause the air motor to drive the generator to generate electricity, thereby reducing battery recycling pollution, being green and environmentally friendly; and improving reliability.
  • the electronic scale comprises: a control module 1, a power supply device 2, a sensor 3, a button module 4 and a display module 5, wherein the power supply device 2, the sensor 3, the button module 4 and the display module 5 are respectively connected to the control module 1;
  • the device 2 is used to supply power to the electronic scale.
  • the sensor 3 is deformed, so that the impedance changes, and the sensor 3 outputs a changed analog signal, which is controlled by the control module 1
  • the button module 4 is the main control component of the electronic scale, and it is a mature technology to control the electronic scale by using the button, and is not related to the main invention of the present invention. Large, so I won't go into details here.
  • the control module 1 includes: an operation control unit 11, an analog-to-digital conversion unit 12, a storage unit 13, and a driving unit 14; wherein, the analog-to-digital conversion unit 12 is connected to the sensor 3, and the sensor 3 is sensed.
  • the obtained analog signal is converted into a digital signal;
  • the storage unit 13 is configured to store the calibration signal;
  • the operation control unit 11 compares the digital signal with the calibration signal stored in the storage unit 13 to output a control signal; and the drive unit 14 outputs the output according to the operation control unit 11.
  • Control signal drives display module 5 to display the result of the operation
  • control module 1 can use the micro control unit (Micro Control
  • MCU MCU
  • ADC Analog-to-Digital Conversion
  • EEPROM Electrically erasable programmable read-only memory
  • the sensor 3 When the weight on the surface of the electronic scale changes, the sensor 3 is deformed, so that the impedance changes, and the sensor 3 outputs a changed analog signal, which is amplified by the internal amplifier circuit of the MCU and output to the ADC.
  • the ADC converts it into a digital signal that is easy to process and outputs it to the operation control unit of the MCU.
  • the MCU reads the calibration data stored in the EEPROM and compares it with the current measured value, and calculates the weight according to the currently selected measurement unit kg/lb. /st is converted into a weight result and output to the LCD for display.
  • FIG. 2 shows the structure of a power supply device according to an embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the power supply device 2 includes: an airflow generating unit 21, a pneumatic motor 22, and a generator 23, wherein the air motor 22 is connected to the airflow generating unit 21 through a duct, and the compressed airflow generating unit 21 generates an airflow; The turn 22 is rotated by the air flow; the rotating air motor 22 drives the generator 23 to operate.
  • the airflow generating unit 21 includes: an airbag 211, a pedal 212, and a support plate 213,
  • the lower surface of the air bag 211 is a horizontal surface
  • the upper surface of the air bag 211 is a sloped surface
  • the lower surface of the air bag 211 is disposed on the support plate 213
  • the pedal 212 is disposed on the upper surface of the air bag 211
  • the pedal 212 is
  • the airbags 211 are movably connected by a rotating shaft 214, and the air motor 22 and the generator 23 are disposed on the side of the rotating shaft 214 (as shown in FIGS.
  • the air bag 211 is provided with an air inlet 2111 and an air outlet 2112, the air inlet 2111 is provided with an intake valve 2113, and the air outlet valve 2112 is provided with an air outlet valve 2114; when the air bag 211 is not received
  • the pressure F ⁇ the intake valve 2113 is opened, and the outlet valve 2114 is closed; when the air bag 211 is compressed, the intake valve 2113 is closed, and the outlet valve 2114 is opened to generate an air flow.
  • a plurality of support feet 215 are disposed under the support plate 213.
  • the airbag 211 can also be filled with an elastic material such as a sponge, and the elastic material can quickly recover the airbag 211 after being compressed, thereby improving work efficiency.
  • the airflow generating unit 21 includes: an airbag 211, a pedal 212, a support plate 213, and a cover 216,
  • the upper and lower surfaces of the air bag 211 are both horizontal surfaces, the lower surface of the air bag 211 is disposed on the support plate 213, the pedal 212 is disposed on the upper surface of the air bag 211, and the air motor 22 and the generator 23 are disposed on the
  • the airbag 211 is on the side.
  • the air bag 211 is uncompressed, and the air bag 211 protrudes above the cover 216 to facilitate the application of the pedal 212.
  • the air bag 211 is provided with an air inlet 2111 and an air outlet 2112, the air inlet 2111 is provided with an intake valve 2113, and the air outlet valve 2112 is provided with an air outlet valve 2114; when the air bag 211 is not received
  • the pressure F ⁇ the intake valve 2113 is opened, and the outlet valve 2114 is closed; when the air bag 211 is compressed, the intake valve 2113 is closed, and the air outlet valve 2114 is opened to generate an air flow.
  • a plurality of supporting feet 215 are also arranged under the supporting plate 213.
  • the generator 23 includes a bracket 231, a coil 232, a rotating shaft 233, a magnet 234, and a power line 235.
  • the coil 232 is fixed on the bracket 231, and the magnet 234 is fixed.
  • the power line 235 is connected to the coil 232 on the rotating shaft 233.
  • the air motor 22 includes a wind drum 221, a wind cover 222 that cooperates with the air drum 221, and a wind wheel 223 disposed in the wind drum 221.
  • the wind wheel 223 is disposed on a rotating shaft of the generator 23.
  • the wind wheel 223 is a turbine type or a blade type wind wheel.
  • the air outlet valve 2114 in 2112 is opened, and the airflow rushes out of the air outlet 2112 in the direction of the arrow to generate a strong airflow to be blown into the air drum 221, and the blower wind wheel 223 rotates at a high speed, because the wind wheel 223 is fastened on the rotating shaft 233,
  • the rotating shaft 233 also drives the magnetic field generated by the magnet 234 and the magnet 234 to rotate at a high speed, and the coil 232 fixed on the bracket 231 instantaneously shears the magnetic field to generate an operating current and outputs the power for the product from the power line 235, and the cymbal works on the surface of the airbag 211.
  • the force should cancel the return of the sponge in the air bag 211, the sponge returning to the original outlet valve 2114 is automatically closed, and the intake valve 2113 opens to suck the air from the outside to fill the air bag 211 to wait for the second work.
  • the power supply device 2 further includes: a voltage stabilizing unit 24 connected to the output end of the generator 23, and the electric signal output from the generator 23 is subjected to voltage stabilization processing and output. It should be noted that the voltage stabilizing unit 24 can be integrated in the power supply unit 2 or integrated in the control module 1.
  • Fig. 3 shows a circuit diagram of the voltage stabilizing unit 24, and for convenience of explanation, only the parts related to the embodiment of the present invention are shown, which are described in detail below.
  • the voltage stabilizing unit 24 includes: a voltage converting unit U2, a first capacitor C10, and a second capacitor C1, wherein the first capacitor C10 is connected between the input terminal VIN of the voltage converting unit U2 and the ground, and the second capacitor C11 Connected between the output terminal OUT of the voltage conversion unit U2 and the ground, the ground terminal GND of the voltage conversion unit U2 is grounded.
  • the voltage conversion unit U2 can use a voltage conversion chip of model 7536
  • the first capacitor C10 can use an electrolytic capacitor of 1F/16V
  • the second capacitor C11 can use an electrolytic capacitor of 47uF/10V.
  • the power supply device 2 can supply power to the electronic scale, and can also be used for occasions where the conventional battery power supply is inconvenient, for example, powering the small bulb under the well, and supplying power to the detector.
  • the power supply device 2 provided by the embodiment of the present invention provides power supply, which can reduce battery recycling pollution and is environmentally friendly.
  • control module 1 takes an MCU as an example
  • display module 5 takes an LCD display as an example.
  • the VDD pin of the MCU is connected to the output of the power supply unit 2.
  • the VDD pin of the MCU is also grounded through the capacitor C1.
  • the Vref pin of the MCU is grounded through the capacitor C2.
  • the VDDA pin of the MCU is grounded through the capacitor C3.
  • CU's AI2 bow I pin is connected to VDDA bow
  • pin is connected to MCU's VDDA pin
  • connector CN1's E- pin is grounded
  • connector CN1's E+ pin is also The capacitor C4 is grounded
  • the S+ pin of the connector CN1 is connected to the AI0 pin of the MCU
  • the S- pin of the connector CN1 is connected to the All pin of the MCU
  • the capacitor C5 is connected to the S+ pin of the connector CN1 and the connector. Between the S- pins of CN1, wherein connector CN1 is used to connect sensor 3 to control module 1.
  • the PA0-PA4 pin of the MCU is connected to the button module 4, wherein the button module 4 includes a switch K1, a switch ⁇ 2, and a switch S1.
  • the PA0 pin of the MCU is grounded through the switch K1, and the PA1 pin of the MCU is grounded through the switch K2, and the switch S1 is The normally closed end is connected to the PA4 pin of the MCU, the kg end of the switch S1 is left unconnected, the st end of the switch S1 is connected to the PA3 pin of the MCU, and the lb end of the switch S1 is connected to the PA2 pin of the MCU.
  • the RST pin of the MCU is connected to the output of the power supply device 2 through the resistor R6.
  • the VSS pin of the MCU is connected to the RST pin of the MCU through the capacitor C6, the VSS pin of the MCU is grounded, and the VLCD pin of the MCU is grounded through the capacitor C7.
  • pin and SEG0-SEG11 pins are all connected to the LCD display.
  • the airflow generating unit 21 may be disposed on the scale surface of the electronic scale; or may be disposed under the scale of the electronic scale; or a window may be opened in the middle of the scale surface, and the airflow generating unit 21 Set in the above window.
  • FIG. 5A is a schematic structural view showing the airflow generating unit 21 disposed on the scale of the electronic scale
  • FIG. 5B is a schematic structural view showing the airflow generating unit 21 disposed under the scale of the electronic scale
  • FIG. 5C is a flow generating unit. 21 Schematic diagram of the structure set in the scale surface of the electronic scale; details are as follows:
  • the electronic scale provided by the embodiment of the invention is powered by the power supply device 2, which avoids the problems of return, exchange and contact failure caused by battery problems, improves reliability; and solves many electronic product exports. Limitation issues.
  • the power supply device uses the airflow generating unit to enable the air motor to drive the generator to generate electricity, thereby reducing battery recycling pollution, and being environmentally friendly; and improving reliability.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

说明书
Title of Invention:一种电源装置及电子秤 技术领域
技术领域
[1] 本发明属于电子秤领域, 尤其涉及一种电源装置及电子秤。
背景技术
背景技术
[2] 现有的电子秤均釆用普通电池供电, 比如釆用钮扣式一次锂电池或者普通的 7 号电池, 一块电池可以使用 6个月〜 18个月, 使用寿命较短; 长期使用频繁的更 换电池会导致电池的触点产生故障, 同吋, 由于电池中含有铁、 锌、 锰、 汞等 微量元素, 回收吋会造成环境污染; 另外, 对于出口产品中所使用的电池会有 很多的限制导致整个电子秤的成本较高。
对发明的公开
技术问题
[3] 本发明实施例的目的在于提供一种电源装置, 旨在解决现有的用于给电子秤供 电的电池寿命短、 电池触点容易发生故障以及电池回收会污染环境的问题。
[4] 本发明实施例的另一目的在于提供一种具有上述电源装置的电子秤, 其可靠性 较高。
技术解决方案
[5] 一种电源装置, 包括: 气流产生单元, 通过管道与所述气流产生单元连接的气 动马达, 以及发电机; 压缩所述气流产生单元产生气流; 所述气动马达在所述 气流的作用下转动; 转动的气动马达驱动所述发电机工作。
[6] 一种电子秤, 包括: 控制模块以及分别与所述控制模块连接的电源装置、 传感 器、 显示模块和按键模块; 所述电源装置为上述电源装置。
有益效果
[7] 本发明实施例提供的电源装置釆用气流产生单元使气动马达带动发电机发电, 减少了电池回收污染, 绿色环保; 提高了可靠性。
[8] 本发明提供的电子秤釆用上述电源装置进行供电, 避免了因电池问题导致的退 货、 换货以及触点故障问题, 提高了可靠性; 解决了电子产品出口遇到很多限 制的问题。
附图说明
[9] 图 1是本发明实施例提供的电子秤的模块结构示意图;
[10] 图 2是本发明实施例提供的电源装置的结构示意图;
[11] 图 3是本发明实施例提供的稳压单元的电路图;
[12] 图 4是本发明实施例提供的电子秤的电路图;
[13] 图 5A是本发明实施例提供的踏板与气囊活动连接的气流产生单元的结构示意图 [14] 图 5B是图 5A的分解示意图;
[15] 图 6A是本发明实施例提供的踏板与气囊活动连接的另一种气流产生单元的结构 示意图;
[16] 图 6B是图 6A的分解示意图;
[17] 图 7是本发明实施例提供的气囊中装有弹性物质且踏板与气囊活动连接的气流 产生单元的结构示意图;
[18] 图 8A是本发明实施例提供的踏板水平设于气囊上表面的气流产生单元的结构示 意图;
[19] 图 8B是图 8A的分解示意图;
[20] 图 9是本发明实施例提供的气动马达和发电机的分解示意图。
本发明的实施方式
[21] 为了使本发明的目的、 技术方案及优点更加清楚明白, 以下结合附图及实施例 , 对本发明进行进一步详细说明。 应当理解, 此处所描述的具体实施例仅仅用 以解释本发明, 并不用于限定本发明。
[22] 本发明实施例提供的电源装置釆用气流产生单元使气动马达带动发电机发电, 减少了电池回收污染, 绿色环保; 提高了可靠性。
[23] 本发明实施例提供的电子秤的模块结构如图 1所示, 为了便于说明, 仅示出了 与本发明实施例相关的部分, 详述如下。
[24] 电子秤包括: 控制模块 1、 电源装置 2、 传感器 3、 按键模块 4和显示模块 5, 其 中, 电源装置 2、 传感器 3、 按键模块 4和显示模块 5分别与控制模块 1连接; 电源 装置 2用于给电子秤供电, 当电子秤秤面上的重量发生变化吋, 会引起传感器 3 发生形变, 从而使阻抗发生变化, 传感器 3输出一个变化的模拟信号, 该模拟信 号经控制模块 1处理后转换为重量结果, 由显示模块 5显示出来; 按键模块 4是电 子秤的主要控制部件, 由于釆用按键对电子秤进行控制已经是很成熟的技术, 与本发明的主要发明点关系不大, 所以在此不再详述。
[25] 在本发明实施例中, 控制模块 1包括: 运算控制单元 11、 模数转换单元 12、 存 储单元 13以及驱动单元 14; 其中, 模数转换单元 12与传感器 3连接, 将传感器 3 感应到的模拟信号转换为数字信号; 存储单元 13用于储存标定信号; 运算控制 单元 11将数字信号与存储单元 13储存的标定信号进行比较运算, 输出控制信号 ; 驱动单元 14根据运算控制单元 11输出的控制信号驱动显示模块 5显示运算结果
[26] 在本发明实施例中, 控制模块 1可以釆用微控制单元 (Micro Control
Unit, MCU) , 其中 MCU内部包含 14位的模数转换器 (Analog-To-Digital conversion, ADC) 、 低噪声运算放大器、 储存容量为 128字节的电可擦可编程 只读存储器 (Electrically Erasable Programmable Read-Only Memory, EEPROM)
、 LCD驱动模块、 输入 /输出端口等。 当电子秤秤面上的重量发生变化吋, 会引 起传感器 3发生形变, 从而使阻抗发生变化, 传感器 3输出一个变化的模拟信号 , 该模拟信号经 MCU内部的放大电路放大后输出到 ADC中, ADC将其转换成便 于处理的数字信号并输出到 MCU的运算控制单元, MCU读出保存在 EEPROM中 的标定数据与当前测量值进行比较, 并计算出重量, 按照当前选择的计量单位 k g/lb/st转换成重量结果, 并输出至 LCD进行显示。
[27] 图 2示出了本发明实施例提供的电源装置的结构, 为了便于说明, 仅示出了与 本发明实施例相关的部分, 详述如下。
[28] 电源装置 2包括: 气流产生单元 21、 气动马达 22以及发电机 23, 其中, 气动马 达 22通过管道与气流产生单元 21连接, 压缩气流产生单元 21产生气流; 气动马 达 22在气流的作用下转动; 转动的气动马达 22驱动发电机 23工作。
[29] 如图 5A、 5B和图 6A和图 6B所示, 作为本发明的气流产生单元 21的一个实施例 , 所述气流产生单元 21包括: 气囊 211、 踏板 212、 支撑板 213, 所述气囊 211下 表面为水平面, 所述气囊 211上表面为斜面, 所述气囊 211下表面设于所述支撑 板 213上, 所述踏板 212设于所述气囊 211上表面上, 所述踏板 212与气囊 211之间 通过一转轴 214活动连接, 所述气动马达 22和发电机 23设于所述转轴 214—侧 ( 如图 6A和图 6B所示) 或与所述转轴 214相对的一侧 (如图 7A和图 7B所示) 。 具 体地, 所述气囊 211上开设有进气口 2111和出气口 2112, 所述进气口 2111处设有 进气阀 2113, 所述出气阀 2112处设有出气阀 2114; 当气囊 211没有受到压力 F吋 , 进气阀 2113打开, 出气阀 2114关闭; 当气囊 211被压缩吋, 进气阀 2113关闭, 出气阀 2114打开, 产生气流。 另外, 所述支撑板 213下方还设有若干起支撑作用 的秤脚 215。 如图 7所示, 所述气囊 211中也可填充海绵等弹性物质, 这些弹性物 质会使气囊 211被压缩后快速复原, 提高工作效率。
[30] 如图 8A和图 8B所示, 作为本发明的气流产生单元 21的另一个实施例, 所述气 流产生单元 21包括: 气囊 211、 踏板 212、 支撑板 213、 面盖 216, 所述气囊 211上 下表面均为水平面, 所述气囊 211下表面设于所述支撑板 213上, 所述踏板 212设 于所述气囊 211上表面上, 所述气动马达 22和发电机 23设于所述气囊 211—侧。 所述气囊 211未受压缩吋, 气囊 211凸出于所述面盖 216之上, 便于对踏板 212施 力。 具体地, 所述气囊 211上开设有进气口 2111和出气口 2112, 所述进气口 2111 处设有进气阀 2113, 所述出气阀 2112处设有出气阀 2114; 当气囊 211没有受到压 力 F吋, 进气阀 2113打开, 出气阀 2114关闭; 当气囊 211被压缩吋, 进气阀 2113 关闭, 出气阀 2114打开, 产生气流。 同吋, 所述支撑板 213下方也设有若干起支 撑作用的秤脚 215。
[31] 如图 9所示, 所述发电机 23包括支架 231、 线圏 232、 转轴 233、 磁铁 234、 电源 线 235, 所述线圏 232固定在所述支架 231上, 所述磁铁 234固定在所述转轴 233上 , 所述电源线 235与所述线圏 232连接。 所述气动马达 22包括风鼓 221、 与所述风 鼓 221配合的风盖 222、 以及设于所述风鼓 221内的风轮 223, 所述风轮 223设于所 述发电机 23的转轴 233上, 具体地, 所述风轮 223为涡轮式或叶片式风轮。 再参 阅图 6A、 6B、 7、 8A、 8B所示, 当气囊 211表面受到力 F吋, 气囊 211体积受压缩 减小而产生气流, 同吋进气口 2111中的进气阀 2113关闭, 出气口 2112中的出气 阀 2114打开, 气流顺箭头方向涌出出气口 2112而产生一股强气流冲进风鼓 221, 吹动风轮 223高速旋转, 由于风轮 223紧固在转轴 233上, 此吋转轴 233也带动磁 铁 234和磁铁 234产生的磁场高速旋转, 固定在支架 231上的线圏 232瞬间剪切磁 场产生工作电流并从电源线 235输出供产品用电, 此吋工作在气囊 211表面的力 应该取消让气囊 211中的海绵回原, 海绵回原的同吋出气阀 2114自动关闭, 进气 阀 2113打开从外边吸入空气填充气囊 211以等待第二次工作。
[32] 在本发明实施例中, 电源装置 2还包括: 稳压单元 24, 与发电机 23的输出端连 接, 将发电机 23输出的电信号进行稳压处理后输出。 需要说明的是, 稳压单元 2 4可以集成在电源装置 2中, 也可以集成在控制模块 1中。
[33] 图 3示出了稳压单元 24的电路图, 为了便于说明, 仅示出了与本发明实施例相 关的部分, 详述如下。
[34] 稳压单元 24包括: 电压转换单元 U2、 第一电容 C10以及第二电容 Cl l, 其中, 第一电容 C10连接在电压转换单元 U2的输入端 VIN与地之间, 第二电容 C11连接 在电压转换单元 U2的输出端 OUT与地之间, 电压转换单元 U2的地端 GND接地。 其中, 电压转换单元 U2可以釆用型号为 7536的电压转换芯片, 第一电容 C10可以 釆用 1F/16V的电解电容, 第二电容 C11可以釆用 47uF/10V的电解电容。
[35] 在本发明实施例中, 电源装置 2除了可以给电子秤供电, 还可以用于野外常规 电池供电不方便的场合, 比如可以给井下的小灯泡供电, 还可以给探测器供电
[36] 与现有的普通电池相比, 釆用本发明实施例提供的电源装置 2进行供电, 可以 减少电池回收污染, 绿色环保。
[37] 图 4示出了本发明实施例提供的电子秤的电路图, 为了便于说明, 仅示出了与 本发明实施例相关的部分, 详述如下。 为了便于说明, 控制模块 1以 MCU为例, 显示模块 5以 LCD显示器为例。
[38] MCU的 VDD引脚连接电源装置 2的输出端, MCU的 VDD引脚还通过电容 C1接 地, MCU的 Vref引脚通过电容 C2接地, MCU的 VDDA引脚通过电容 C3接地, M CU的 AI2弓 I脚连接至 VDDA弓 |脚, 4PIN脚的连接器 CN1的 E+弓 |脚连接至 MCU的 VDDA引脚, 连接器 CN1的 E-引脚接地, 连接器 CN1的 E+引脚还通过电容 C4接地 , 连接器 CN1的 S+引脚连接至 MCU的 AI0引脚, 连接器 CN1的 S-引脚连接至 MCU 的 All引脚, 电容 C5连接在连接器 CN1的 S+引脚与连接器 CN1的 S-引脚之间, 其 中连接器 CN1是用于将传感器 3与控制模块 1连接的。 MCU的 PA0-PA4引脚连接 按键模块 4, 其中, 按键模块 4包括开关 Kl、 开关 Κ2以及开关 Sl, MCU的 PA0引 脚通过开关 K1接地, MCU的 PA1引脚通过开关 K2接地, 开关 S1的常闭端连接至 MCU的 PA4引脚, 开关 S1的 kg端悬空不接, 开关 S1的 st端连接至 MCU的 PA3引脚 , 开关 S1的 lb端连接至 MCU的 PA2引脚。 MCU的 RST引脚通过电阻 R6连接至电 源装置 2的输出端, MCU的 VSS引脚通过电容 C6连接至 MCU的 RST引脚, MCU 的 VSS引脚接地, MCU的 VLCD引脚通过电容 C7接地, MCU的 COM0-COM3弓 | 脚以及 SEG0-SEG11引脚均连接至 LCD显示器。
[39] 在本发明实施例中, 气流产生单元 21可以设置于电子秤的秤面上; 也可以设置 于电子秤的秤面下; 还可以在秤面中间开一个窗口, 将气流产生单元 21设置于 上述窗口中。 图 5A示出了气流产生单元 21设置于电子秤的秤面上的结构示意图 ; 图 5B示出了气流产生单元 21设置于电子秤的秤面下的结构示意图; 图 5C示出 了气流产生单元 21设置于电子秤的秤面窗口中的结构示意图; 详述如下:
[40] 本发明实施例提供的电子秤釆用上述电源装置 2进行供电, 避免了因电池问题 导致的退货、 换货以及触点故障问题, 提高了可靠性; 解决了电子产品出口遇 到很多限制的问题。
[41] 本发明实施例提供的电源装置釆用气流产生单元使气动马达带动发电机发电, 减少了电池回收污染, 绿色环保; 提高了可靠性。
[42] 以上所述仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡在本发明的 精神和原则之内所作的任何修改、 等同替换和改进等, 均应包含在本发明的保 护范围之内。

Claims

权利要求书
[Claim 1] 一种电源装置, 其特征在于, 所述电源装置包括:
气流产生单元, 通过管道与所述气流产生单元连接的气动马达以 及发电机;
压缩所述气流产生单元产生气流;
所述气动马达在所述气流的作用下转动;
转动的气动马达驱动所述发电机工作。
[Claim 2] 如权利要求 1所述的电源装置, 其特征在于, 所述气流产生单元包 括:
气囊、 设置于所述气囊的进气口的进气阀以及设置于所述气囊的 出气口的出气阀;
当所述气囊没有受到压力吋, 气囊膨胀, 体积增大, 所述进气阀 打开, 所述出气阀关闭;
当所述气囊被压缩吋, 体积减小, 所述进气阀关闭, 所述出气阀 打开, 产生气流。
[Claim 3] 权利要求 2所述的电源装置, 其特征在于, 所述气流产生单元还包 括:
踏板、 支撑板, 所述气囊下表面为水平面, 所述气囊上表面为斜 面, 所述气囊下表面设于所述支撑板上, 所述踏板设于所述气囊 上表面上, 所述踏板与气囊之间通过一转轴活动连接, 所述气动 马达和发电机设于所述转轴一侧或与所述转轴相对的一侧。
[Claim 4] 权利要求 2所述的电源装置, 其特征在于, 所述气流产生单元还包 括:
踏板、 支撑板, 所述气囊上下表面均为水平面, 所述气囊下表面 设于所述支撑板上, 所述踏板设于所述气囊上表面上, 所述气动 马达和发电机设于所述气囊一侧。
[Claim 5] 如权利要求 1所述的电源装置, 其特征在于, 所述发电机包括支架
、 线圏、 转轴、 磁铁、 电源线, 所述线圏固定在所述支架上, 所 述磁铁固定在所述转轴上, 所述电源线与所述线圏连接。
[Claim 6] 如权利要求 5所述的电源装置, 其特征在于, 所述气动马达包括风 鼓、 与所述风鼓配合的风盖、 以及设于所述风鼓内的风轮, 所述 风轮设于所述发电机的转轴上。
[Claim 7] 如权利要求 6所述的电源装置, 其特征在于, 所述风轮为涡轮式或 叶片式风轮。
[Claim 8] 权利要求 1所述的电源装置, 其特征在于, 所述电源装置还包括: 稳压单元, 与所述发电机的输出端连接, 将所述发电机输出的电 信号进行稳压处理后输出; 所述稳压单元包括:
电压转换单元, 连接在所述电压转换单元的输入端与地之间的第 一电容, 以及连接在所述电压转换单元的输出端与地之间的第二 电容。
[Claim 9] 一种电子秤, 其包括: 控制模块以及分别与所述控制模块连接的 电源装置、 传感器、 显示模块和按键模块; 其特征在于, 所述电 源装置为权利要求 1-8任一项所述的电源装置。
[Claim 10] 权利要求 9所述的电子秤, 其特征在于, 所述控制模块包括: 模数转换单元, 与所述传感器连接, 将所述传感器感应到的模拟 信号转换为数字信号;
存储单元, 用于储存标定信号;
运算控制单元, 将所述数字信号与所述存储单元储存的标定信号 进行比较运算, 输出控制信号;
驱动单元, 根据所述控制信号驱动所述显示模块显示运算结果。
PCT/CN2009/075394 2009-11-30 2009-12-08 一种电源装置及电子秤 WO2011063573A1 (zh)

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CN102128670B (zh) * 2010-12-08 2013-01-30 中山市永衡日用制品有限公司 一种具备自发电系统的电子秤
CN102121845A (zh) * 2010-12-23 2011-07-13 中山市永衡日用制品有限公司 一种具备温差发电装置的电子秤
CN105547436A (zh) * 2016-01-08 2016-05-04 中山市永衡日用制品有限公司 一种采用虚拟显示屏的电子秤
CN108020307A (zh) * 2017-11-21 2018-05-11 广东永衡良品科技有限公司 一种利用压缩气流驱动自发电装置的电子秤
CN107941308A (zh) * 2017-11-21 2018-04-20 广东永衡良品科技有限公司 一种利用水流发电供电的电子秤
CN109640499A (zh) * 2019-01-16 2019-04-16 上海安平静电科技有限公司 一种消静电装置及其工作方法
CN110849451B (zh) * 2019-11-29 2021-10-26 安徽优尚电子技术有限公司 一种微称量电子秤的测量方法
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