WO2014086299A1 - 电子开关、电机及提高电机效率的方法 - Google Patents

电子开关、电机及提高电机效率的方法 Download PDF

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Publication number
WO2014086299A1
WO2014086299A1 PCT/CN2013/088650 CN2013088650W WO2014086299A1 WO 2014086299 A1 WO2014086299 A1 WO 2014086299A1 CN 2013088650 W CN2013088650 W CN 2013088650W WO 2014086299 A1 WO2014086299 A1 WO 2014086299A1
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Prior art keywords
switch
motor
battery pack
motor body
voltage
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PCT/CN2013/088650
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English (en)
French (fr)
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胡永健
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Wu Wingkin
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Publication of WO2014086299A1 publication Critical patent/WO2014086299A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P31/00—Arrangements for regulating or controlling electric motors not provided for in groups H02P1/00 - H02P5/00, H02P7/00 or H02P21/00 - H02P29/00

Definitions

  • the present application relates to an electronic switch, a motor and a method of improving the efficiency of the motor.
  • Figure 1 and Figure 2 show typical motor speed-efficiency curves. It can be seen from Fig. 1 and Fig. 2 that the highest efficiency of the same motor at rated power will only occur at a certain speed. In general, the manufacturer will produce the motor at the required speed to achieve greater performance at the required speed. This can result in lower efficiency at other speeds, such as electric tools such as electric cars or electric drills, which are not ideal at start-up, so that the motor needs to be frequently switched between start-stop.
  • the technical problem to be solved by the present application is to provide an electronic switch, a motor and a method for improving the efficiency of the motor, which can improve the efficiency of the motor in view of the deficiencies of the prior art.
  • the present application provides an electronic switch including a power source, a control voltage unit and an information feedback unit, wherein the power source is used for power supply, and the information feedback unit is configured to acquire data information of the motor body and send the data to
  • the control voltage unit is configured to determine an input voltage of the motor body according to the data information, and control the power source to output the input voltage.
  • the power source includes a battery pack and a control unit, and the control unit is configured to control the battery pack to output a plurality of voltages.
  • control unit includes a plurality of switches for outputting a plurality of voltages by changing a connection relationship between the plurality of battery packs.
  • the plurality of battery packs at least includes a first battery pack and a second battery pack, the plurality of switches including at least a first switch, a second switch, and a third switch, the first switch being connected in series to the first battery pack Between the second battery and the second battery, one end of the second switch is connected between the first switch and a positive pole of the first battery, and the other end of the second switch is connected to the second battery Between the positive pole of the group and the motor body, one end of the third switch is connected between the first switch and the negative pole of the second battery pack, and the other end of the third switch is connected to the first The negative pole of the battery pack is between the motor body.
  • the switch includes one or more of a switch ⁇ , a relay, and a field effect transistor.
  • the data information includes one or more of motor speed, torque, and current.
  • a motor controller for limiting the output power of the motor body is also included.
  • a motor including a motor body, and an electronic switch for providing a plurality of input voltages to the motor body.
  • the present application provides a method of improving motor efficiency, comprising the steps of:
  • Step A obtaining a voltage value corresponding to the high efficiency of the motor body under the same power and different speeds;
  • Step B obtaining the rotational speed of the running motor body, and determining an input voltage value when the high efficiency is obtained according to the rotational speed;
  • Step C Adjust the power output voltage of the motor so that the power source outputs the voltage value.
  • the step C is specifically implemented by adjusting the connection relationship between the battery packs by the battery pack.
  • the information feedback unit is configured to acquire data information of the motor body and send it to the control voltage unit, and the control voltage unit is used according to the data information, because the power source, the control voltage unit, and the information feedback unit are included. Determine the input voltage supplied to the motor body, and control the power supply to output the input voltage, and adjust the voltage of the motor body at different speeds to obtain higher efficiency.
  • the power source includes a battery pack and a control unit
  • the control unit includes a plurality of switches
  • the connection relationship between the plurality of battery packs is changed by using the switch to provide With different voltages
  • the present application can improve the efficiency of the motor body, and the method is simple and easy to implement.
  • Figure 1 is a graph showing the speed-efficiency curve of the motor at a voltage of 60V;
  • Figure 2 is a graph showing the speed-efficiency curve of the motor at a voltage of 30V;
  • FIG. 3 is a schematic structural view of an electronic switch of the present application in an embodiment
  • FIG. 4 is a schematic structural view of an electronic switch of the present application in another embodiment
  • Figure 5 is a schematic structural view of a motor of the present application in an embodiment
  • FIG. 6 is a schematic structural view of a motor of the present application in another embodiment
  • Figure 7 is a graph showing the speed-efficiency curve of the motor of the present application.
  • Figure 8 is a flow diagram of the method of the present application in one embodiment.
  • the 400PRM is low, and the highest efficiency point of the same motor at high voltage operation occurs at a higher speed (288PRM, 92%).
  • the above comparisons are all compared with the same power of the same motor (ie, the highest output power of the motor).
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • an embodiment of an electronic switch of the present application includes a power source, a control voltage unit, and an information feedback unit.
  • the power supply is used for power supply
  • the information feedback unit is configured to acquire data information of the motor body and send it to the control voltage unit
  • the control voltage unit is configured to determine an input voltage supplied to the motor body according to the data information, and control the power source to output the input voltage.
  • the data information may include one or more of parameters such as motor speed, torque, and current.
  • the electronic switch of the present application further includes a motor controller connected in series between the power source and the motor body for limiting the output power of the motor body so that the maximum output power of the motor does not exceed the rated value. Power damages the motor.
  • Ports 1 and 2 in Fig. 3 and Fig. 4 are used to connect to the power terminal of the motor body, and port 3 is used to connect the data output terminal of the motor body.
  • the power supply includes a battery pack and a control unit, and the control unit is used to control the battery pack to output a plurality of voltages.
  • the battery pack is composed of a plurality of batteries, and there may be a plurality of battery packs.
  • the control unit includes a plurality of switches, and the plurality of switches output a plurality of voltages by changing a connection relationship between the plurality of battery packs. Specifically, the connection relationship between the plurality of battery packs can be changed by closing or disconnecting the plurality of switches, so that a plurality of battery packs are formed in a parallel or series relationship to output a plurality of voltages.
  • the combination of battery packs connected in series and in parallel can also use multiple combinations, for example, 4 groups, 6 groups, 8 groups or even more.
  • the combination form can be divided into series connection of all battery groups, parallel connection of all battery groups, partial series connection and partial parallel connection, etc.
  • the switch can include one or more of a switch ⁇ , a relay, and a FET.
  • the plurality of battery packs includes at least a first battery pack 11 and a second battery pack 12, and the plurality of switches includes at least a first switch 13, a second switch 14, and a third switch 15.
  • the first switch 13 is connected in series between the first battery pack 11 and the second battery pack 12, one end of the second switch 14 is connected between the first switch 13 and the positive pole of the first battery pack 11, and the other end of the second switch 14 is connected.
  • one end of the third switch 15 is connected between the first switch 11 and the negative pole of the second battery pack 12, and the other end of the third switch 15 is connected to the first battery pack 11.
  • the second switch 14 and the third switch 15 may be selected as parallel switches.
  • the plurality of battery packs pass through the first switch 13, the second switch 14, and the third switch 15, and are combined in series, in parallel, or both to generate different voltage inputs to the motor controller, and then output to the motor body by the motor controller.
  • the information feedback unit feeds back data such as motor speed/torque/current to the voltage control unit.
  • the voltage control unit obtains the most appropriate motor input voltage and automatically controls the first switch 13, the second switch 14 and the first
  • the three switches 15 generate the required voltage to the motor controller, which is then output to the motor body.
  • the voltage control unit closes the second switch 14 and the third switch 15, and turns off the first switch 13, thereby obtaining a low voltage.
  • the voltage control unit considers that a high voltage is required, the first switch 13 is closed, the second switch 14 and the third switch 15 are turned off, and the first battery pack 11 and the second battery pack 12 are connected in series, thereby obtaining a high voltage.
  • the input voltage required to be supplied to the motor body is determined by the voltage control unit according to the data acquired by the information feedback unit, and is controlled by the voltage control unit to control the closing and opening of the switch group.
  • the electronic switch of the present application is applicable not only to a DC motor but also to an AC motor.
  • the AC motor is made more efficient by changing the input voltage of the AC motor.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • An embodiment of the motor of the present application includes a motor body and an electronic switch for providing a plurality of input voltages to the motor body.
  • the electronic switch includes a power source, a control voltage unit, and an information feedback unit.
  • the power supply is used for power supply
  • the information feedback unit is configured to acquire data information of the motor body and send it to the control voltage unit
  • the control voltage unit is configured to determine an input voltage supplied to the motor body according to the data information, and control the power source to output the input voltage.
  • the data information may include one or more of parameters such as motor speed, torque, and current.
  • the electronic switch of the present application further includes a motor controller for limiting the output power of the motor body such that the maximum output power of the motor does not exceed the rated power and damages the motor.
  • the power supply includes a battery pack and a control unit, and the control unit is used to control the battery pack to output a plurality of voltages.
  • the battery pack is composed of a plurality of batteries, and there may be a plurality of battery packs.
  • the control unit includes a plurality of switches, and the plurality of switches output a plurality of voltages by changing a connection relationship between the plurality of battery packs. Specifically, the connection relationship between the plurality of battery packs can be changed by closing or disconnecting the plurality of switches, so that a plurality of battery packs are formed in a parallel or series relationship to output a plurality of voltages.
  • the combination of battery packs connected in series and in parallel can also use multiple combinations, for example, 4 groups, 6 groups, 8 groups or even more.
  • the combination form can be divided into series connection of all battery groups, parallel connection of all battery groups, partial series connection and partial parallel connection, etc.
  • the switch can include one or more of a switch ⁇ , a relay, and a FET.
  • the plurality of battery packs includes at least a first battery pack 11 and a second battery pack 12, and the plurality of switches includes at least a first switch 13, a second switch 14, and a third switch 15.
  • the first switch 13 is connected in series between the first battery pack 11 and the second battery pack 12, one end of the second switch 14 is connected between the first switch 13 and the positive pole of the first battery pack 11, and the other end of the second switch 14 is connected.
  • one end of the third switch 15 is connected between the first switch 11 and the negative pole of the second battery pack 12, and the other end of the third switch 15 is connected to the first battery pack 11.
  • the second switch 14 and the third switch 15 may be selected as parallel switches.
  • the plurality of battery packs pass through the first switch 13, the second switch 14, and the third switch 15, and are combined in series, in parallel, or both to generate different voltage inputs to the motor controller, and then output to the motor body by the motor controller.
  • the information feedback unit feeds back data such as motor speed/torque/current to the voltage control unit.
  • the voltage control unit obtains the most appropriate motor input voltage and automatically controls the first switch 13, the second switch 14 and the first
  • the three switches 15 generate the required voltage to the motor controller, which is then output to the motor body.
  • the voltage control unit closes the second switch 14 and the third switch 15, and turns off the first switch 13, thereby obtaining a low voltage.
  • the voltage control unit when the voltage control unit considers that a high voltage is required, the first switch 13 is closed, the second switch 14 and the third switch 15 are turned off, and the first battery pack 11 and the second battery pack 12 are connected in series. Get a high voltage.
  • the input voltage required to be supplied to the motor body is determined by the voltage control unit according to the data acquired by the information feedback unit, and is controlled by the voltage control unit to control the closing and opening of the switch group.
  • Figure 7 is a graph showing the speed-efficiency curve obtained after using the motor of the present application.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the method for improving the efficiency of the motor of the present application includes the following steps:
  • Step 802 Acquire a voltage value corresponding to when the motor body obtains high efficiency under the same power and different rotation speeds
  • Step 804 Acquire a rotation speed of the running motor body, and determine an input voltage value when the high efficiency is obtained according to the rotation speed;
  • Step 806 Adjust a power output voltage of the motor, so that the power source outputs the input voltage value.
  • the step 806 is specifically implemented by adjusting a connection relationship between the plurality of battery packs by using a plurality of switches.
  • the plurality of switches change the connection relationship between the plurality of battery packs to output a plurality of voltages.
  • the connection relationship between the plurality of battery packs can be changed by closing or disconnecting the plurality of switches, so that a plurality of battery packs are formed in a parallel or series relationship to output a plurality of voltages.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

一种电子开关、电机及提高电机效率的方法，电子开关包括电源、控制电压单元和信息反馈单元，电源用于供电，信息反馈单元用于获取电机本体数据信息并发送给控制电压单元，控制电压单元根据数据信息确定提供给电机本体的输入电压，通过调整电机本体在不同转速时的电压，可获得较高的效率。

Description

电子开关、电机及提高电机效率的方法 技术领域
本申请涉及一种电子开关、电机及提高电机效率的方法。
 背景技术
图1、图2为典型的电机转速-效率曲线。由图1、图2可知，同一电机在额定功率下最高的效率只会在某一转速出现。一般情况下，生产商会根据所需要的转速生产电机，使其在所需要的转速下能有较大的效能。这会造成在其他转速时的效率较低，例如电动汽车或电钻等电动工具在起动时的效果不理想，使电机需要经常在起动-停止之间转换。
 发明内容
本申请要解决的技术问题是针对现有技术的不足，提供一种可使电机提高效率的电子开关、电机及提高电机效率的方法。
根据本申请的第一方面，本申请提供一种电子开关，包括电源、控制电压单元和信息反馈单元，所述电源用于供电，所述信息反馈单元用于获取电机本体的数据信息并发送给所述控制电压单元，所述控制电压单元用于根据所述数据信息确定所述电机本体的输入电压，并控制所述电源输出所述输入电压。
所述电源包括电池组和控制单元，所述控制单元用于控制所述电池组输出多种电压。
所述电池组有多个，所述控制单元包括多个开关，所述多个开关用于通过改变多个所述电池组之间的连接关系输出多种电压。
多个所述电池组至少包括第一电池组和第二电池组，所述多个开关至少包括第一开关、第二开关和第三开关，所述第一开关串联在所述第一电池组和所述第二电池组之间，所述第二开关一端连接在所述第一开关与所述第一电池组的正极之间，所述第二开关的另一端连接在所述第二电池组的正极与所述电机本体之间，所述第三开关一端连接在所述第一开关与所述第二电池组的负极之间，所述第三开关的另一端连接在所述第一电池组的负极与所述电机本体之间。
所述开关包括开关掣、继电器和场效应管中的一种或多种。
所述数据信息包括电机转速、扭力和电流中的一种或多种。
还包括用于限制电机本体的输出功率的电机控制器。
根据本申请的第二方面，本早请提供一种电机，包括电机本体，还包括上述电子开关，所述电子开关用于为电机本体提供多种输入电压。。
根据本申请的第三方面，本申请提供一种提高电机效率的方法，包括以下步骤：
步骤A：获取电机本体在相同功率下、不同转速时，取得高效率时所对应的电压值；
步骤B：获取正在运行的电机本体的转速，根据所述转速确定其取得高效率时的输入电压值；
步骤C：调整电机的电源输出电压，使电源输出所述电压值。
所述步骤C具体通过电池组调整电池组之间的连接关系实现。
由于采用了以上技术方案，使本申请具备的有益效果在于：
（1）在本申请的具体实施方式中，由于包括电源、控制电压单元和信息反馈单元，信息反馈单元用于获取电机本体的数据信息并发送给控制电压单元，控制电压单元用于根据数据信息确定提供给电机本体的输入电压，并控制电源输出该输入电压，调整电机本体在不同转速时的电压，以获得较高的效率。
（2）在本申请的具体实施方式中，由于电源包括电池组和控制单元，电池组有多个，控制单元包括多个开关，通过使用开关改变多个电池组之间的连接关系，以提供不同的电压，本申请可提高电机本体的效率，且方法简单，易于实施。
附图说明
图1为电机在电压为60V时的转速-效率曲线图；
图2为电机在电压为30V时的转速-效率曲线图；
图3为本申请电子开关在一种实施方式中的结构示意图；
图4为本申请电子开关在另一种实施方式中的结构示意图；
图5为本申请电机在一种实施方式中的结构示意图；
图6为本申请电机在另一种实施方式中的结构示意图；
图7为本申请电机的转速-效率曲线图；
图8为本申请方法在一种实施方式中的流程图。
具体实施方式
下面通过具体实施方式结合附图对本申请作进一步详细说明。
比较图1、图2可知，同一电机在相同的额定功率下，用不同电压，其转速-效率曲线变会有所不同，即同一电机在较低输入电压时的最高效率点会在较低转速时出现。例如图2，电机运行于低电压（30V）时，转速170PRM可以有84%以上的效率，但在图1中，同一电机于高电压运行时，转速170PRM却只得不超过68%的效率。另一方面，由图2可得出，虽然同一电机在使用低电压在低转速时会有较高的效率，但其最高转速只有195PRM，比起图1，虽同一电机于高电压运行时的400PRM为低，而且高电压运行时同一电机的最高效率点出现在较高的转速（288PRM，92%）。以上比较均为同一电机同一功率（即电机的最高输出功率）的情况下作比较。综上所述，可知若要有较高转速，则需要舍弃低转速时的效率；若要低转速有较好的效率，则要舍弃高转速，即高转速与高效率不可同时兼得。
实施例一：
如图3所示，本申请的电子开关，其一种实施方式，包括电源、控制电压单元和信息反馈单元。电源用于供电，信息反馈单元用于获取电机本体的数据信息并发送给控制电压单元，控制电压单元用于根据该数据信息确定提供给电机本体的输入电压，并控制电源输出该输入电压。数据信息可以包括电机转速、扭力和电流等参数中的一种或多种。
如图4所示本申请的电子开关还包括可以电机控制器，电机控制器串联在所述电源与电机本体之间，用于限制电机本体的输出功率，使得电机的最大输出功率不会超出额定功率而损坏电机。图3、图4中的端口1和端口2用于和电机本体的电源端连接，端口3用于连接电机本体的数据输出端。
电源包括电池组和控制单元，控制单元用于控制电池组输出多种电压。电池组由多个一颗电池组成，电池组可以有多个，控制单元包括多个开关，多个开关通过改变多个电池组之间的连接关系从而输出多种电压。具体可通过多个开关的闭合或断开改变多个电池组之间的连接关系，使多个电池组之间形成并联或串联关系，从而输出多种电压。串联和并联的电池组的组合也可使用多重组合，例如4组、6组、8组甚至更多，组合形式可以分为把全部电池组串联、全部电池组并联、部分串联与部分并联等以上的组合来选取多种电压以达到更高效率。开关可以包括开关掣、继电器和场效应管中的一种或多种。
多个电池组至少包括第一电池组11和第二电池组12，多个开关至少包括第一开关13、第二开关14和第三开关15。第一开关13串联在第一电池组11和第二电池组12之间，第二开关14一端连接在第一开关13与第一电池组11的正极之间，第二开关14的另一端连接在第二电池组12的正极与电机本体之间，第三开关15一端连接在第一开关11与第二电池组12的负极之间，第三开关15的另一端连接在第一电池组11的负极与电机本体之间。在一种实施方式中，第二开关14和第三开关15可以是选用并联开关。多个电池组经过第一开关13、第二开关14和第三开关15，通过串联、并联或两者组合以产生不同的电压输入至电机控制器，再由电机控制器输出至电机本体。
信息反馈单元会反馈电机转速/扭力/电流等数据至电压控制单元，电压控制单元收到此数据后，得出最适当的电机输入电压，并自动控制第一开关13、第二开关14和第三开关15产生所需电压至电机控制器，再由电机控制器输出至电机本体。当需要低电压时，电压控制单元会闭合第二开关14和第三开关15，断开第一开关13，籍此得到低电压。当电压控制单元认为需要高电压时，会闭合第一开关13，断开第二开关14和第三开关15，第一电池组11和第二电池组12串联，籍此得到高电压。具体需要提供给电机本体的输入电压，由电压控制单元根据信息反馈单元获取的数据确定，并由电压控制单元控制开关组的闭合和断开获得。
本申请的电子开关不仅适用于直流电机，也可适用于交流电机。用于交流电机时，通过改变交流电机的输入电压来使交流电机达至更高效率。
实施例二：
本申请的电机，其一种实施方式，包括电机本体和电子开关，电子开关用于为电机本体提供多种输入电压。电子开关包括电源、控制电压单元和信息反馈单元。电源用于供电，信息反馈单元用于获取电机本体的数据信息并发送给控制电压单元，控制电压单元用于根据该数据信息确定提供给电机本体的输入电压，并控制电源输出该输入电压。数据信息可以包括电机转速、扭力和电流等参数中的一种或多种。
本申请的电子开关还包括可以电机控制器，电机控制器用于限制电机本体的输出功率，使得电机的最大输出功率不会超出额定功率而损坏电机。
电源包括电池组和控制单元，控制单元用于控制电池组输出多种电压。电池组由多个一颗电池组成，电池组可以有多个，控制单元包括多个开关，多个开关通过改变多个电池组之间的连接关系从而输出多种电压。具体可通过多个开关的闭合或断开改变多个电池组之间的连接关系，使多个电池组之间形成并联或串联关系，从而输出多种电压。串联和并联的电池组的组合也可使用多重组合，例如4组、6组、8组甚至更多，组合形式可以分为把全部电池组串联、全部电池组并联、部分串联与部分并联等以上的组合来选取多种电压以达到更高效率。开关可以包括开关掣、继电器和场效应管中的一种或多种。
多个电池组至少包括第一电池组11和第二电池组12，多个开关至少包括第一开关13、第二开关14和第三开关15。第一开关13串联在第一电池组11和第二电池组12之间，第二开关14一端连接在第一开关13与第一电池组11的正极之间，第二开关14的另一端连接在第二电池组12的正极与电机本体之间，第三开关15一端连接在第一开关11与第二电池组12的负极之间，第三开关15的另一端连接在第一电池组11的负极与电机本体之间。在一种实施方式中，第二开关14和第三开关15可以是选用并联开关。多个电池组经过第一开关13、第二开关14和第三开关15，通过串联、并联或两者组合以产生不同的电压输入至电机控制器，再由电机控制器输出至电机本体。
信息反馈单元会反馈电机转速/扭力/电流等数据至电压控制单元，电压控制单元收到此数据后，得出最适当的电机输入电压，并自动控制第一开关13、第二开关14和第三开关15产生所需电压至电机控制器，再由电机控制器输出至电机本体。如图5所示，当需要低电压时，电压控制单元会闭合第二开关14和第三开关15，断开第一开关13，籍此得到低电压。如图6所示，当电压控制单元认为需要高电压时，会闭合第一开关13，断开第二开关14和第三开关15，第一电池组11和第二电池组12串联，籍此得到高电压。具体需要提供给电机本体的输入电压，由电压控制单元根据信息反馈单元获取的数据确定，并由电压控制单元控制开关组的闭合和断开获得。图7为使用本申请的电机后得到的转速-效率曲线。
实施例三：
如图8所示，本申请提高电机效率的方法，其一种实施方式，包括以下步骤：
步骤802：获取电机本体在相同功率下、不同转速时，取得高效率时所对应的电压值；
步骤804：获取正在运行的电机本体的转速，根据所述转速确定其取得高效率时的输入电压值；
步骤806：调整电机的电源输出电压，使电源输出所述输入电压值。
在一种实施方式中，步骤806中具体通过多个开关调整多个电池组之间的连接关系实现。多个开关改变多个电池组之间的连接关系从而输出多种电压。具体可通过多个开关的闭合或断开改变多个电池组之间的连接关系，使多个电池组之间形成并联或串联关系，从而输出多种电压。
以上内容是结合具体的实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换。

Claims (10)

  1. 一种电子开关，其特征在于，包括电源、控制电压单元和信息反馈单元，所述电源用于供电，所述信息反馈单元用于获取电机本体的数据信息并发送给所述控制电压单元，所述控制电压单元用于根据所述数据信息确定提供给所述电机本体的输入电压，并控制所述电源输出所述输入电压。
  2. 如权利要求1所述的电子开关，其特征在于，所述电源包括电池组和控制单元，所述控制单元用于控制所述电池组输出多种电压。
  3. 如权利要求2所述的电子开关，其特征在于，所述电池组有多个，所述控制单元包括多个开关，所述多个开关通过改变多个所述电池组之间的连接关系从而输出多种电压。
  4. 如权利要求3所述的电子开关，其特征在于，多个所述电池组至少包括第一电池组和第二电池组，所述多个开关至少包括第一开关、第二开关和第三开关，所述第一开关串联在所述第一电池组和所述第二电池组之间，所述第二开关一端连接在所述第一开关与所述第一电池组的正极之间，所述第二开关的另一端连接在所述第二电池组的正极与所述电机本体之间，所述第三开关一端连接在所述第一开关与所述第二电池组的负极之间，所述第三开关的另一端连接在所述第一电池组的负极与所述电机本体之间。
  5. 如权利要求3所述的电机，其特征在于，所述开关包括开关掣、继电器和场效应管中的一种或多种。
  6. 如权利要求1所述的电机，其特征在于，所述数据信息包括电机转速、扭力和电流中的一种或多种。
  7. 如权利要求1所述的电机，其特征在于，还包括串联在所述电源与所述电机本体之间的电机控制器，所述电机控制器用于限制电机本体的输出功率。
  8. 一种电机，包括电机本体，其特征在于，还包括如权利要求1至7中任一项所述的电子开关，，所述电子开关用于为所述电机本体提供多种输入电压。
  9. 一种用于权利要求1至7中任一项所述电机的提高电机效率的方法，其特征在于，包括以下步骤：
    步骤A：获取电机本体在相同功率下、不同转速时，取得高效率时所对应的电压值；
    步骤B：获取正在运行的电机本体的转速，根据所述转速确定其取得高效率时的输入电压值；
    步骤C：调整电机的电源输出电压，使电源输出所述电压值。
  10. 如权利要求9所述的提高电机效率的方法，其特征在于，
    所述步骤C具体通过电池组调整电池组之间的连接关系实现。
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