WO2021208351A1 - 汽油机电池包、电启动汽油机及园林工具 - Google Patents

汽油机电池包、电启动汽油机及园林工具 Download PDF

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WO2021208351A1
WO2021208351A1 PCT/CN2020/115871 CN2020115871W WO2021208351A1 WO 2021208351 A1 WO2021208351 A1 WO 2021208351A1 CN 2020115871 W CN2020115871 W CN 2020115871W WO 2021208351 A1 WO2021208351 A1 WO 2021208351A1
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Prior art keywords
module
charging
gasoline engine
voltage
battery
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PCT/CN2020/115871
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English (en)
French (fr)
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陈飞
廖华波
张添荣
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苏州科瓴精密机械科技有限公司
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Publication of WO2021208351A1 publication Critical patent/WO2021208351A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
    • 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
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the utility model relates to a gasoline engine battery pack, an electric start gasoline engine and garden tools, in particular to a gasoline engine battery pack, an electric start gasoline engine and garden tools which are convenient for charging the gasoline engine battery pack.
  • Small gasoline engines are often used in the landscaping industry, for example, to provide power for garden tools such as lawn mowers, lawn mowers, and chain saws.
  • electronic control systems have been applied to small internal combustion engines.
  • small internal combustion engines used in garden tools are equipped with electric starting systems, electronic fuel injection systems, electronic ignition systems, and single-chip microcomputer controllers.
  • the detachable battery is usually packaged on a small internal combustion engine.
  • Chinese patent application CN201820520906.X discloses an electric starter suitable for a small gasoline engine. It is equipped with a motor. The motor is powered by a battery.
  • the motor shaft drives the pawl to rotate through a traditional mechanism; the pawl is connected to the start shaft of the gasoline engine to be started.
  • Adaptation corresponds.
  • the battery is a rechargeable lithium battery.
  • On the front of the casing there is a start button and indicator light.
  • the start button can facilitate the start operation. According to the different colors of light emitted by the indicator light, the battery's sufficient level can be judged.
  • the existing small gasoline engines usually use 7.2V, 8V, 9V, or even 12V batteries for power supply, and a special charger is required to power the battery, and the charging interface cannot achieve universality.
  • the utility model provides a gasoline engine battery pack, an electric start gasoline engine and garden tools, so as to solve the technical problem of facilitating the charging of the gasoline engine battery pack.
  • the utility model provides a gasoline engine battery pack, which is applied to an electric start gasoline engine.
  • the electric start gasoline engine includes a starter motor;
  • the gasoline engine battery pack includes:
  • a battery module connected to the starting motor and supplying power to the starting motor
  • USB charging interface which is used to receive external power
  • the power management module is connected between the battery module and the USB charging interface, and the power management module is used to input external power to the battery module and manage the charging state of the battery module.
  • the power management module further includes a boost module connected between the USB charging interface and the battery module, the USB charging interface receives a first voltage, and the first voltage is boosted The voltage module outputs a second voltage after boosting processing, and the battery module receives the second voltage.
  • the boost module is a Boost boost circuit.
  • the battery module includes a plurality of single lithium batteries, and the plurality of single lithium batteries are connected in series to form a battery module.
  • the power management module includes a charging state indicating module
  • the charging state indicating module includes a light emitting diode
  • the light emitting state of the light emitting diode is used to indicate the current charging state.
  • the power management module includes at least one of a temperature detection module, an input overvoltage module, an input undervoltage module, a charging time module, and a charging current limiting module.
  • the power management module further includes a charging control module.
  • the control module is used to receive the charging control signal output by the temperature detection module, the input overvoltage module, the input undervoltage module, the charging time module or the charging current limiting module, and perform charging control on the battery module according to the charging control signal.
  • the temperature detection module is used to detect the temperature of the battery module, and output a charging control signal to the charging control module according to the temperature of the battery module, and when the temperature of the battery module exceeds a temperature threshold range, the charging The control signal is a charging stop signal; when the temperature of the battery module does not exceed the temperature threshold range and is not higher than the first temperature threshold, the charging control signal is the first charging signal; the temperature of the battery module does not exceed the temperature threshold range And when the temperature is higher than the first temperature threshold, the charging control signal is a second charging signal, and the second charging signal is smaller than the first charging signal.
  • the input overvoltage module is used to detect a first voltage, and output a charging control signal to the charging control module according to the first voltage, and when the first voltage exceeds an overvoltage threshold, the charging control signal Is a charging control signal for stopping charging;
  • the input under-voltage module is used to detect a first voltage, and output a charging control signal to the charging control module according to the first voltage, and when the first voltage is close to the under-voltage threshold,
  • the charging control signal is a third charging control signal.
  • the utility model also provides an electric start gasoline engine, which includes the gasoline engine battery pack.
  • the utility model also provides a garden tool, which includes the electric start gasoline engine.
  • the utility model is provided with a USB charging interface and a power management module, and a universal USB charger can be inserted into the USB charging interface to receive external power.
  • the power management module manages the charging status of the battery module, thereby facilitating the gasoline engine battery The charging of the bag to achieve stable and reliable protection during the charging process.
  • the utility model uses a temperature detection module to detect the temperature of the battery module, and the charging control module performs over-temperature protection on the gasoline engine battery pack according to the temperature of the battery module.
  • the utility model is used for detecting the first voltage through the input overvoltage module, and the charging control module performs overvoltage protection on the gasoline engine battery pack according to the first voltage.
  • Figure 1 is a schematic block diagram of the utility model gasoline engine battery pack applied to an electric start gasoline engine
  • a plurality of means at least two, such as two, three, etc., unless otherwise specifically defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediary, and it can be a connection between two elements or an interaction relationship between two elements.
  • installation can be a fixed connection or a detachable connection.
  • Connected or integrated it can be a mechanical connection or an electrical connection
  • it can be directly connected or indirectly connected through an intermediary, and it can be a connection between two elements or an interaction relationship between two elements.
  • the specific meaning of the above-mentioned terms in the present utility model can be understood according to specific circumstances.
  • the "on” or “under” of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features.
  • the features are not in direct contact but through other features between them.
  • the "above”, “above” and “above” of the first feature on the second feature include the first feature directly above and obliquely above the second feature, or it simply means that the first feature is higher in level than the second feature.
  • the “below”, “below” and “below” of the second feature of the first feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
  • a gasoline engine battery pack 20 of the present invention is applied to an electric start gasoline engine.
  • the electric start gasoline engine includes a starter motor 10.
  • the gasoline engine battery pack 20 is detachably installed on one side of the body of the electric start gasoline engine.
  • the gasoline engine battery pack 20 is a rechargeable battery, such as a lead-acid battery, a lithium battery, or a nickel-hydrogen battery.
  • the gasoline engine battery pack 20 includes:
  • the battery module 21 is connected to the starter motor 10 and supplies power to the starter motor 10;
  • USB charging interface 22 which is used to receive external power
  • the power management module 23 is connected between the battery module 21 and the USB charging interface 22.
  • the power management module 23 is used to input external power to the battery module 21 and manage the charging state of the battery module 21.
  • the USB charging interface is a Micro USB charging interface
  • a universal Micro USB charger is inserted into the Micro USB charging interface to receive external power, which facilitates the charging of the gasoline engine battery pack.
  • the power management module 23 further includes a boost module 231 connected between the USB charging interface 22 and the battery module 21, the USB charging interface 22 receives a first voltage, the first voltage is boosted by the boost module 231 and then outputs a second voltage, and the battery module 21 receives the second voltage.
  • the first voltage is 5V
  • the second voltage may be determined according to the voltage of the battery module 21 when it is fully charged. For example, when the battery module 21 is a two-string lithium battery, the second voltage is 8.4V.
  • the boost module 231 is a Boost boost circuit.
  • the boost module 231 receives a 5V voltage and raises it to 8.4V to charge the battery module 21.
  • the battery module 21 includes a plurality of single lithium batteries, and the plurality of single lithium batteries are connected in series to form the battery module 21, and the number of single lithium batteries can be set as required.
  • the power management module includes a charging state indicating module 237
  • the charging state indicating module 237 includes a light-emitting diode
  • the light-emitting state of the light-emitting diode is used to indicate the current charging state.
  • the charging status includes charging, charging completion, abnormal charging, etc.
  • the light-emitting state of the light-emitting diode is always on, which is used to indicate that the current charging state is charging; the light-emitting state of the light-emitting diode is off, which is used To indicate that the current charging state is charging completed; the light-emitting state of the light-emitting diode is blinking, which is used to indicate that the current charging state is abnormal charging.
  • the power management module 23 includes at least one of a temperature detection module 232, an input overvoltage module 233, an input undervoltage module 234, a charging time module 235, and a charging current limiting module 236, so
  • the power management module 23 also includes a charging control module 238, which is used to receive output from the temperature detection module 232, the input overvoltage module 233, the input undervoltage module 234, the charging time module 235, or the charging current limiting module 236 Charging control signal, and performing charging control on the battery module 21 according to the charging control signal.
  • the temperature detection module 232 is used to protect the battery module 21 from over-temperature; the input over-voltage module 233 is used to protect the battery module 21 from input over-voltage to prevent the battery module 21 from being charged at a voltage exceeding the over-voltage threshold.
  • the input under-voltage module 234 is used to perform input under-voltage protection on the battery module 21 to prevent the battery module 21 from being charged at a voltage exceeding the under-voltage threshold.
  • the charging time module 235 is used to protect the battery module 21 from charging overtime, so as to avoid battery damage to the battery module 21 due to overtime charging.
  • the charging current limiting module 236 is used to protect the battery module 21 from overcurrent to prevent the charging current of the battery module 21 from exceeding the limited current.
  • the temperature detection module 232 is used to detect the temperature of the battery module 21, and output a charging control signal to the charging control module 238 according to the temperature of the battery module 21, and the battery module
  • the charging control signal is a stop charging signal
  • the charging control signal is the first charging Signal
  • the charging control signal is a second charging signal
  • the second charging signal is less than the first charging signal
  • the temperature detection module 232 detects the temperature of the battery module 21 through the NTC resistor.
  • the voltage generated on the NTC resistor is inversely proportional to the temperature of the battery module 21. The higher the voltage generated on the NTC resistor, the higher the temperature of the battery module 21. Low, and the lower the voltage generated on the NTC resistor, the higher the temperature of the battery module 21 is indicated.
  • the temperature of the battery module 21 exceeds the temperature threshold range, that is, the voltage generated on the NTC resistor is too large (corresponding to the temperature of the battery module 21 is too low) or too small (corresponding to the temperature of the battery module 21 is too high)
  • the The charging control signal is a stop charging signal.
  • the first charging signal or the second charging signal may be output to the charging control module 238, and the first charging signal and the second charging signal respectively include the first charging current value and The second charging current value, the second charging current value is half of the first charging current value, and the magnitude relationship between the first charging current value and the second charging current value can also be set as required.
  • the input overvoltage module 233 is used to detect a first voltage, and output a charging control signal to the charging control module 238 according to the first voltage, and the first voltage exceeds the overvoltage When the voltage threshold is lowered, the charging control signal is a charging control signal for stopping charging.
  • the input undervoltage module 234 is used to detect a first voltage, and output a charging control signal to the charging control module 238 according to the first voltage, and the first voltage is close to the undervoltage.
  • the charging control signal is a third charging control signal.
  • the charging time module 235 is used to detect the charging time of the battery module 21 and output a charging control signal to the charging control module 238 according to the charging time. It is detected that the charging time of the battery module 21 exceeds the set maximum charging time, and the charging control signal is a charging stop signal to avoid battery damage caused by overtime charging.
  • the present utility model also provides an electric start gasoline engine, which includes the gasoline engine battery pack.
  • the present invention also provides a garden tool, which includes the electric start gasoline engine, and the garden tool may be a lawn mower, a lawn mower, a chain saw, and the like.
  • the present utility model is equipped with a USB charging interface and a power management module, and a universal USB charger can be inserted into the USB charging interface to receive external power.
  • the power management module manages the charging status of the battery module, thereby facilitating the storage of the gasoline engine battery pack. Charging to achieve stable and reliable protection during charging.
  • the utility model uses a temperature detection module to detect the temperature of the battery module, and the charging control module performs over-temperature protection on the gasoline engine battery pack according to the temperature of the battery module.
  • the utility model is used for detecting the first voltage through the input overvoltage module, and the charging control module performs overvoltage protection on the gasoline engine battery pack according to the first voltage.

Abstract

一种汽油机电池包（20）、电启动汽油机及园林工具，所述汽油机电池包（20）应用于电启动汽油机，所述电启动汽油机包括启动电机（10）；所述汽油机电池包（20）包括电池模块（21）、USB充电接口（22）与电源管理模块（23），所述电池模块（21）连接所述启动电机（10）并向所述启动电机（10）供电；所述USB充电接口（22）用于接收外部电力；所述电源管理模块（23）连接于电池模块（21）与USB充电接口（22）之间，所述电源管理模块（23）用于将外部电力输入至所述电池模块（21）并管理所述电池模块（21）的充电状态。所述汽油机电池包（20）设置USB充电接口（22）与电源管理模块（23），使用通用的USB充电器插入USB充电接口（22）即可接收外部电力，通过电源管理模块（23）管理电池模块（21）的充电状态，从而方便汽油机电池包（20）的充电，以实现充电过程中稳定可靠的保护。

Description

汽油机电池包、电启动汽油机及园林工具 技术领域
本实用新型涉及汽油机电池包、电启动汽油机及园林工具，尤其涉及一种方便汽油机电池包的充电的汽油机电池包、电启动汽油机及园林工具。
背景技术
小型汽油机经常被用于园林绿化行业，例如为打草机、割草机、链锯等园林工具提供动力。现有技术中已有将电控系统应用于小型内燃机，例如在园林工具使用的小型内燃机中配备电启动系统、电子喷油系统、电子点火系统以及单片机控制器等。为了方便地为上述电控系统供电，通常将可拆卸电池包装配在小型内燃机上。例如，中国专利申请CN201820520906.X揭露一种适用于小型汽油发动机的电启动器，设有电机，电机由电池供电，电机轴通过传统机构带动拨爪转动；拨爪与待启动汽油发动机的启动轴适配对应。电池为可充电的锂电池，在外壳的正面，设有启动按钮和指示灯，启动按钮可以方便启动操作。根据指示灯发出的不同颜色的光可以判断电池的电量充足程度。还设有保险丝10和充电接口，锂电池可通过充电接口连接市电进行充电。
但是，现有小型汽油发动机通常使用7.2V，8V，9V，甚至12V电池供电，需配备专用充电器为电池供电，充电接口无法实现通用性。
实用新型内容
本实用新型提供一种汽油机电池包、电启动汽油机及园林工具，以解决方便汽油机电池包的充电的技术问题。
本实用新型提供一种汽油机电池包，其应用于电启动汽油机，所述电启动汽油机包括启动电机；所述汽油机电池包包括：
电池模块，其连接所述启动电机并向所述启动电机供电；
USB充电接口，其用于接收外部电力；
电源管理模块，其连接于电池模块与USB充电接口之间，所述电源管理模块用于将外部电力输入至所述电池模块并管理所述电池模块的充电状态。
可选地，所述电源管理模块还包括升压模块，所述升压模块连接于所述USB充电接口与电池模块之间，所述USB充电接口接收第一电压，所述第一电压经升压模块升压处理后输出第二电压，所述电池模块接收所述第二电压。
可选地，所述升压模块为Boost升压电路。
可选地，所述电池模块包括多个单体锂电池，多个单体锂电池串联形成电池模块。
可选地，所述电源管理模块包括充电状态指示模块，所述充电状态指示模块包括发光二极管，所述发光二极管的发光状态用于指示当前充电状态。
可选地，所述电源管理模块包括温度检测模块、输入过压模块、输入欠压模块、充电时间模块、充电限流模块的至少一个，所述电源管理模块还包括充电控制模块，所述充电控制模块用于接收温度检测模块、输入过压模块、输入欠压模块、充电时间模块或充电限流模块输出的充电控制信号，并根据所述充电控制信号对所述电池模块进行充电控制。
可选地，所述温度检测模块用于检测电池模块的温度，并根据所述电池模块的温度输出充电控制信号至充电控制模块，且所述电池模块的温度超出温度阈值范围时，所述充电控制信号为停止充电信号；所述电池模块的温度未超出温度阈值范围且未高于第一温度阈值时，所述充电控制信号为第一充电信号；所述电池模块的温度未超出温度阈值范围且高于第一温度阈值时，所述充电控制信号为第二充电信号，所述第二充电信号小于所述第一充电信号。
可选地，所述输入过压模块用于检测第一电压，并根据所述第一电压输出充电控制信号至充电控制模块，且所述第一电压超出过压阈值时，所述充电控制信号为停止充电的充电控制信号；所述输入欠压模块用于检测第一电压，并根据所述第一电压输出充电控制信号至充电控制模块，且所述第一电压接近欠压阈值时，所述充电控制信号为第三充电控制信号。
本实用新型还提供一种电启动汽油机，其包括所述汽油机电池包。
本实用新型还提供一种园林工具，其包括所述电启动汽油机。
相较于现有技术，本实用新型设置USB充电接口与电源管理模块，使用通用的USB充电器插入USB充电接口即可接收外部电力，通过电源管理模块管理电池模块的充电状态，从而方便汽油机电池包的充电，以实现充电过程中稳定可靠的保护。本实用新型通过温度检测模块用于检测电池模块的温度，充电控制模块根据电池模块的温度对汽油机电池包进行过温保护。本实用新型通过输入过压模块用于检测第一电压，充电控制模块根据第一电压对汽油机电池包进行过压保护。
附图说明
图1为本实用新型汽油机电池包应用于电启动汽油机的原理框图；
具体实施方式
下面结合附图和实施例对本实用新型作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本实用新型，而非对本实用新型的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本实用新型相关的部分而非全部结构。
在本实用新型的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制。
在本实用新型的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本实用新型中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。
在本实用新型中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
请参阅图1所示，本实用新型一种汽油机电池包20，其应用于电启动汽油机，所述电启动汽油机包括启动电机10。所述汽油机电池包20可拆卸式安装于电启动汽油机的机体的一侧。所述汽油机电池包20为可充电电池，例如铅酸蓄电池、锂电池或镍氢电池。
所述汽油机电池包20包括：
电池模块21，其连接所述启动电机10并向所述启动电机10供电；
USB充电接口22，其用于接收外部电力；
电源管理模块23，其连接于电池模块21与USB充电接口22之间，所述电源管理模块23用于将外部电力输入至所述电池模块21并管理所述电池模块21的充电状态。
在本实用新型的另一个实施例中，所述USB充电接口为Micro USB充电接口，使用通用的Micro USB充电器插入Micro USB充电接口即可接收外部电力，方便汽油机电池包的充电。
在本实用新型的另一个实施例中，所述电源管理模块23还包括升压模块231，所述升压模块231连接于所述USB充电接口22与电池模块21之间，所 述USB充电接口22接收第一电压，所述第一电压经升压模块231升压处理后输出第二电压，所述电池模块21接收所述第二电压。所述第一电压为5V，所述第二电压可根据电池模块21在充满电时的电压而定，例如，在电池模块21为2串锂电池时，所述第二电压为8.4V。
在本实用新型的另一个实施例中，所述升压模块231为Boost升压电路，例如，所述升压模块231接收5V电压，并升高至8.4V后给电池模块21充电。
在本实用新型的另一个实施例中，所述电池模块21包括多个单体锂电池，多个单体锂电池串联形成电池模块21，可根据需要设定单体锂电池的数量。
在本实用新型的另一个实施例中，所述电源管理模块包括充电状态指示模块237，所述充电状态指示模块237包括发光二极管，所述发光二极管的发光状态用于指示当前充电状态，所述充电状态包括充电中、充电完成、充电异常等，例如，所述发光二极管的发光状态为常亮，其用于指示当前充电状态为充电中；所述发光二极管的发光状态为灭灯，其用于指示当前充电状态为充电完成；所述发光二极管的发光状态为闪烁，其用于指示当前充电状态为充电异常。
在本实用新型的另一个实施例中，所述电源管理模块23包括温度检测模块232、输入过压模块233、输入欠压模块234、充电时间模块235、充电限流模块236的至少一个，所述电源管理模块23还包括充电控制模块238，所述充电控制模块238用于接收温度检测模块232、输入过压模块233、输入欠压模块234、充电时间模块235或充电限流模块236输出的充电控制信号，并根据所述充电控制信号对所述电池模块21进行充电控制。所述温度检测模块232用于对电池模块21进行过温保护；所述输入过压模块233用于对电池模块21进行输入过压保护，避免电池模块21在超出过压阈值的电压下进行充电；所述输入欠 压模块234用于对电池模块21进行输入欠压保护，避免电池模块21在超出欠压阈值的电压下进行充电。所述充电时间模块235用于对电池模块21进行充电超时保护，避免电池模块21因超时充电导致的电池损坏。所述充电限流模块236用于对电池模块21进行过流保护，避免电池模块21的充电电流超出限定电流。
在本实用新型的另一个实施例中，所述温度检测模块232用于检测电池模块21的温度，并根据所述电池模块21的温度输出充电控制信号至充电控制模块238，且所述电池模块21的温度超出温度阈值范围时，所述充电控制信号为停止充电信号；所述电池模块21的温度未超出温度阈值范围且未高于第一温度阈值时，所述充电控制信号为第一充电信号；所述电池模块21的温度未超出温度阈值范围且高于第一温度阈值时，所述充电控制信号为第二充电信号，所述第二充电信号小于所述第一充电信号。
温度检测模块232借由NTC电阻来检测电池模块21的温度，所述NTC电阻上产生的电压与电池模块21的温度成反比，NTC电阻上产生的电压越高，则指示电池模块21的温度越低，而NTC电阻上产生的电压越低，则指示电池模块21的温度越高。所述电池模块21的温度超出温度阈值范围时，即NTC电阻上产生的电压过大(对应于电池模块21的温度过低)或过小(对应于电池模块21的温度过高)，所述充电控制信号为停止充电信号。所述电池模块21的温度未超出温度阈值范围时，可输出第一充电信号或第二充电信号至充电控制模块238，所述第一充电信号与第二充电信号分别包括第一充电电流值与第二充电电流值，所述第二充电电流值为第一充电电流值的一半，也可以根据需要设置第一充电电流值与第二充电电流值的大小关系。
在本实用新型的另一个实施例中，所述输入过压模块233用于检测第一电压，并根据所述第一电压输出充电控制信号至充电控制模块238，且所述第一电压超出过压阈值时，所述充电控制信号为停止充电的充电控制信号。
在本实用新型的另一个实施例中，所述输入欠压模块234用于检测第一电压，并根据所述第一电压输出充电控制信号至充电控制模块238，且所述第一电压接近欠压阈值时，所述充电控制信号为第三充电控制信号。
在本实用新型的另一个实施例中，所述充电时间模块235用于检测电池模块21的充电时间，并根据充电时间输出充电控制信号至充电控制模块238。检测电池模块21的充电时间超过设置的最大充电时间，所述充电控制信号为停止充电信号，避免因超时充电导致的电池损坏。
在本实用新型的另一个实施例中，本实用新型还提供一种电启动汽油机，其包括所述汽油机电池包。
在本实用新型的另一个实施例中，本实用新型还提供一种园林工具，其包括所述电启动汽油机，所述园林工具可为打草机、割草机、链锯等。
综上所述，本实用新型设置USB充电接口与电源管理模块，使用通用的USB充电器插入USB充电接口即可接收外部电力，通过电源管理模块管理电池模块的充电状态，从而方便汽油机电池包的充电，以实现充电过程中稳定可靠的保护。本实用新型通过温度检测模块用于检测电池模块的温度，充电控制模块根据电池模块的温度对汽油机电池包进行过温保护。本实用新型通过输入过压模块用于检测第一电压，充电控制模块根据第一电压对汽油机电池包进行过压保护。
注意，上述仅为本实用新型的较佳实施例及所运用技术原理。本领域技术 人员会理解，本实用新型不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本实用新型的保护范围。因此，虽然通过以上实施例对本实用新型进行了较为详细的说明，但是本实用新型不仅仅限于以上实施例，在不脱离本实用新型构思的情况下，还可以包括更多其他等效实施例，而本实用新型的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种汽油机电池包(20)，其应用于电启动汽油机，所述电启动汽油机包括启动电机(10)；其特征在于，所述汽油机电池包(20)包括：
    电池模块(21)，其连接所述启动电机(10)并向所述启动电机(10)供电；
    USB充电接口(22)，其用于接收外部电力；
    电源管理模块(23)，其连接于电池模块(21)与USB充电接口(22)之间，所述电源管理模块(23)用于将外部电力输入至所述电池模块(21)并管理所述电池模块(21)的充电状态。
  2. 根据权利要求1所述的汽油机电池包，其特征在于，所述电源管理模块(23)还包括升压模块(231)，所述升压模块(231)连接于所述USB充电接口(22)与电池模块(21)之间，所述USB充电接口(22)接收第一电压，所述第一电压经升压模块(231)升压处理后输出第二电压，所述电池模块(21)接收所述第二电压。
  3. 根据权利要求2所述的汽油机电池包，其特征在于，所述升压模块(231)为Boost升压电路。
  4. 根据权利要求1所述的汽油机电池包，其特征在于，所述电池模块(21)包括多个单体锂电池，多个单体锂电池串联形成电池模块。
  5. 根据权利要求1所述的汽油机电池包，其特征在于，所述电源管理模块包括充电状态指示模块(237)，所述充电状态指示模块(237)包括发光二极管，所述发光二极管的发光状态用于指示当前充电状态。
  6. 根据权利要求1所述的汽油机电池包，其特征在于，所述电源管理模块(23)包括温度检测模块(232)、输入过压模块(233)、输入欠压模块(234)、充电时间模块(235)与充电限流模块(236)的至少一个，所述电源管理模块 (23)还包括充电控制模块(238)，所述充电控制模块(238)用于接收温度检测模块(232)、输入过压模块(233)、输入欠压模块(234)、充电时间模块(235)或充电限流模块(236)输出的充电控制信号，并根据所述充电控制信号对所述电池模块(21)进行充电控制。
  7. 根据权利要求6所述的汽油机电池包，其特征在于，所述温度检测模块(232)用于检测电池模块(21)的温度，并根据所述电池模块(21)的温度输出充电控制信号至充电控制模块(238)，且所述电池模块(21)的温度超出温度阈值范围时，所述充电控制信号为停止充电信号；所述电池模块(21)的温度未超出温度阈值范围且未高于第一温度阈值时，所述充电控制信号为第一充电信号；所述电池模块(21)的温度未超出温度阈值范围且高于第一温度阈值时，所述充电控制信号为第二充电信号，所述第二充电信号小于所述第一充电信号。
  8. 根据权利要求6所述的汽油机电池包，其特征在于，所述输入过压模块(233)用于检测第一电压，并根据所述第一电压输出充电控制信号至充电控制模块(238)，且所述第一电压超出过压阈值时，所述充电控制信号为停止充电的充电控制信号；所述输入欠压模块(234)用于检测第一电压，并根据所述第一电压输出充电控制信号至充电控制模块(238)，且所述第一电压接近欠压阈值时，所述充电控制信号为第三充电控制信号。
  9. 一种电启动汽油机，其特征在于，包括如权利要求1至8中任一项所述的汽油机电池包(20)。
  10. 一种园林工具，其特征在于，包括如权利要求9中所述的电启动汽油机。
PCT/CN2020/115871 2020-04-16 2020-09-17 汽油机电池包、电启动汽油机及园林工具 WO2021208351A1 (zh)

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