WO2023245393A1

WO2023245393A1 - Electric tool

Info

Publication number: WO2023245393A1
Application number: PCT/CN2022/099969
Authority: WO
Inventors: 田富涛
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2023-12-28
Also published as: CN117715731A

Abstract

An electric tool (1000), comprising: a storage box body (1100), comprising a photovoltaic system (1110), a first battery (1120) and a first connector (1130), the first battery being connected to both the photovoltaic system and the first connector, and the photovoltaic system being used for harvesting solar energy and, after converting solar energy into electric energy, supplying same to the first battery (1120); and a tool body (1200), comprising a second battery (1210) and a second connector (1220), the second connector being connected to the second battery and, in response to a connection between the first connector and the second connector, the first battery being used for supplying power to the second battery. Therefore, the electric tool supplies power to the first battery by means of the photovoltaic system of the storage box body, thus ensuring that electric energy will be supplied to the first battery as long as the photovoltaic system is in a light environment; and, when the first battery and the second connector are connected, supplies power to the second battery by means of the first battery, thus ensuring that electric energy will be supplied to the second battery, which improves the reliability of the electric tool and enhancing the sense of experience of a user.

Description

electrical tools

Technical field

The present disclosure relates to the field of tool technology, and in particular to an electric tool.

Background technique

At present, power tools (such as electric screwdrivers, electric drills, etc.) are divided into those with batteries (such as lithium batteries) and those without batteries. Among them, electric tools without batteries require a driving power supply in the working environment. The driving power supply drives the electric tools without batteries to work. If the working environment is outdoors where there is no driving power supply, electric tools without batteries cannot be used. Tools; although battery-powered power tools can be used outdoors where there is no driving power source, the battery may be insufficient and the power tool still cannot be used.

Therefore, how to ensure that there is electricity to power power tools is an issue that needs to be solved urgently.

Contents of the invention

The present disclosure provides an electric tool that supplies power to the first battery through the photovoltaic system of the storage box. In this way, as long as the photovoltaic system is in a light environment, it can ensure that there is electric power to power the first battery and connect the first connector and the second When the connector is connected, the first battery is used to supply power to the second battery, thus ensuring that there is power to power the second battery, improving the reliability of the power tool and enhancing the user experience. The technical solutions of the present disclosure are as follows:

According to an embodiment of the present disclosure, an electric tool is provided, which includes:

The storage box includes a photovoltaic system, a first battery and a first connector. The first battery is connected to the photovoltaic system and the first connector respectively. The photovoltaic system is used to collect solar energy and convert the Converting solar energy into electrical energy supplies power to the first battery;

The tool body includes a second battery and a second connector, the second connector is connected to the second battery;

Wherein, in response to the connection between the first connector and the second connector, the first battery is used to supply power to the second battery.

In one embodiment of the present disclosure, the photovoltaic system includes:

Photovoltaic panels, used to harvest solar energy;

A photovoltaic converter connected to the photovoltaic panel for converting the solar energy into direct current of a first voltage;

A DC-DC converter connected to the photovoltaic converter, used to convert the DC power of the first voltage into the DC power of the second voltage to charge the first battery;

Wherein, the first voltage is greater than the second voltage.

In one embodiment of the present disclosure, the photovoltaic system further includes:

A solar charge and discharge control module disposed between the photovoltaic converter and the DC-DC converter is used to adjust the power output from the photovoltaic converter to the DC-DC converter.

In one embodiment of the present disclosure, the solar charge and discharge control module includes:

a power tracker connected to the photovoltaic converter, configured to track changes in the first voltage and first current of the photovoltaic converter, and determine the power output by the photovoltaic converter based on the changes;

A pulse width modulator respectively connected to the power tracker and the DC-DC converter, for adjusting the duty cycle of the pulse width modulation signal output to the DC-DC converter according to the power, so as to Adjustment of the power output to the DC-DC converter is achieved.

In one embodiment of the present disclosure, the storage box further includes:

A first charge manager disposed between the DC-DC converter and the first battery is used to monitor parameters of the first battery and control the DC-DC converter according to the parameters of the first battery. Disconnect or connect the DC converter and the first battery;

The parameters of the first battery include at least one of current, voltage, temperature, and remaining power of the first battery.

In one embodiment of the present disclosure, the storage box further includes:

a first diode, the anode of the first diode is connected to the first charge manager, the cathode of the first diode is connected to the anode of the first battery, and is used to prevent the first battery from Reverse charging.

In one embodiment of the present disclosure, the tool body further includes:

a second charge manager disposed between the second connector and the second battery for monitoring parameters of the second battery and controlling the second connection according to the parameters of the second battery disconnect or connect between the device and the second battery. In one embodiment of the present disclosure, the tool body further includes:

a second diode, the anode of the second diode is connected to the second connector, the cathode of the second diode is connected to the anode of the second battery, and is used to prevent the second The battery is charged in reverse.

In one embodiment of the present disclosure, the photovoltaic system is also connected to the first connector; wherein,

In response to the photovoltaic system being in a light environment and the remaining power of the first battery exceeding the set remaining power, the photovoltaic system and the first battery are used to power the second battery;

Or, in response to the photovoltaic system being in a light environment and the remaining power of the first battery not exceeding the set remaining power, the photovoltaic system is used to power the first battery and the second battery. .

In one embodiment of the present disclosure, the storage box further includes:

A first charging interface connected to the first battery is used to connect to a driving power supply through a first power adapter, and use the driving power supply to supply power to the first battery.

In one embodiment of the present disclosure, it also includes:

In response to the first charging interface being connected to the driving power supply and the first connector and the second connector being connected, the driving power supply is used to supply power to the second battery.

In one embodiment of the present disclosure, the tool body further includes:

A second charging interface connected to the second battery is used to connect to a driving power supply through a second power adapter, and use the driving power supply to supply power to the second battery.

In one embodiment of the present disclosure, the first connector and the second connector are connected in response to the tool body being placed within the storage box.

The technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects:

Through the embodiment of the present disclosure, the electric tool of the present disclosure includes a storage box and a tool body; wherein the storage box includes a photovoltaic system, a first battery and a first connector, and the first battery is connected to the photovoltaic system and the first connector respectively. The photovoltaic system is used to collect solar energy and convert the solar energy into electrical energy to power the first battery; the tool body includes a second battery and a second connector, and the second connector is connected to the second battery; wherein, in response to When the first connector and the second connector are connected, the first battery is used to supply power to the second battery. As a result, the electric tool supplies power to the first battery through the photovoltaic system of the storage box. In this way, as long as the photovoltaic system is in a light environment, it can ensure that there is power to power the first battery and connect the first connector and the second connector. When connected, the first battery is used to supply power to the second battery, thus ensuring that there is electricity to power the second battery, improving the reliability of the power tool and enhancing the user experience.

It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and do not limit the present disclosure.

Description of the drawings

The drawings herein are incorporated into and constitute a part of this specification, illustrate embodiments consistent with the disclosure, and together with the description are used to explain the principles of the disclosure, and do not constitute undue limitations on the disclosure.

1 is a schematic diagram of an electric tool according to an embodiment of the present disclosure;

Figure 2 is a schematic diagram of an electric tool according to an embodiment of the present disclosure;

Figure 3 is a schematic diagram of a storage box according to an embodiment of the present disclosure;

Figure 4 is a schematic diagram of a storage box according to another embodiment of the present disclosure;

Figure 5 is a schematic diagram of a tool body according to an embodiment of the present disclosure;

Figure 6 is a schematic diagram of a power tool according to another embodiment of the present disclosure.

Detailed ways

In order to allow ordinary people in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings.

It should be noted that the terms "first", "second", etc. in the description and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the disclosure described herein can be practiced in sequences other than those illustrated or described herein. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of the disclosure as detailed in the appended claims.

The electric tool of the embodiment of the present disclosure will be described below with reference to the accompanying drawings.

1 is a schematic diagram of an electric tool according to an embodiment of the present disclosure.

It should be noted that the electric tools in the embodiments of the present disclosure may be electric screwdrivers, electric drills and other tools.

As shown in FIG. 1 , an electric tool 1000 according to an embodiment of the present disclosure includes a storage box 1100 and a tool body 1200 .

The storage box 1100 includes a photovoltaic system 1110, a first battery 1120 and a first connector 1130. The first battery 1120 is connected to the photovoltaic system 1110 and the first connector 1130 respectively. The photovoltaic system 1110 is used to collect solar energy and convert the solar energy into After being converted into electrical energy, it supplies power to the first battery 1120 . The tool body 1200 includes a second battery 1210 and a second connector 1220, and the second connector 1220 is connected to the second battery 1210. When the first connector 1130 and the second connector 1220 are connected, the first battery 1120 is used to provide power to the second battery 1210 .

It should be noted that the first connector 1130 and the second connector 1220 are components that can electrically connect the storage box 1100 and the tool body 1200, allowing electric energy to be output from the first battery 1120 of the storage box 1100 to the tool. The second battery 1210 of the body 1200.

As an implementation manner of the first connector 1130 and the second connector 1220, both the first connector 1130 and the second connector 1220 may be wireless connectors. When the first connector 1130 and the second connector 1220 are both wireless connectors, the first connector 1130 can conduct the energy of the first battery 1120 of the storage box 1100 to the second connector 1220 through near-field induction. The second connector 1220 converts the received energy into electrical energy, which is stored in the second battery 1210 of the tool body 1200 . It should be noted that in this implementation, the principle used for energy conduction may be inductive coupling, and the wireless connector selected in this implementation can ensure a conductive interface without leakage.

As another possible implementation of the first connector 1130 and the second connector 1220 , both the first connector 1130 and the second connector 1220 may be non-wireless connectors, for example, they may be power contact connectors, where , the shape of the power contact connector (such as a circular connector, a rectangular connector, etc.) can be set according to actual needs, and is not specifically limited in this disclosure. In order to save costs and avoid setting the second connector 1220 on the tool body 1200 again, the charging interface provided on the tool body 1200 can be used as the second connector 1220, and the second connector 1220 can be a USB interface connector, so that It is only necessary to provide the second connector 1220 on the storage box 1100 that can be connected to the charging interface.

In this embodiment, when the photovoltaic system 1110 of the storage box 1100 is in a light environment, the photovoltaic system 1110 will collect solar energy, convert the solar energy into electrical energy and then supply power to the first battery 1120 inside it. In this way, as long as the photovoltaic system 1110 If it is in a light environment, it can ensure that there is electric energy to power the first battery 1120 inside it.

When the tool body 1200 is placed in the storage box 1100, the storage box 1100 and the tool body 1200 are connected through the first connector 1130 and the second connector 1220. When the first connector 1130 and the second connector 1220 are connected, the first battery 1120 in the storage box can provide power to the second battery 1210 in the tool body 1200 , thus ensuring that there is power to power the second battery 1210 . Or, when the first connector 1130 and the second connector 1220 are connected, the remaining power of the first battery 1120 is obtained, and based on the relationship between the remaining power of the first battery 1120 and the set remaining power, it is determined whether to pass The first battery 1120 of the storage box 1100 charges the second battery 1210 in the tool body 1200. For example, if the remaining power of the first battery 1120 of the storage box 1100 exceeds the set remaining power, the second battery 1120 of the storage box 1100 is charged. A battery 1120 charges the second battery 1210 in the tool body 1200. If the remaining power of the first battery 1120 of the storage box 1100 does not exceed the set remaining power, the first battery 1120 of the storage box 1100 will no longer charge the battery 1120. The second battery 1210 of the tool body 1200 is charged.

For example, as can be seen from FIG. 2 , the power tool 1000 can be in a drawer type, and the storage space where the tool body 1200 is located is a "drawer". The tool body 1200 can be placed in the storage box 1100 to store the tool through the storage box 1100 . The tool body 1200 in the form of a "drawer" is locked in place. Specifically, the tool body 1200 can be locked in place through the second connector 1220 at the bottom of the storage box 1100 and the first connector 1130 provided at a position corresponding to the second connector 1220. For example, the first connector 1130 can be a push-type connector. When the "drawer" is placed in the storage box 1100, the first connector 1130 and the second connector 1220 are connected by pressing the "drawer". At this time, The energy of the storage box 1100 (such as the photovoltaic system 1110 and/or the first battery 1120) can be transferred to the second battery 1210 in the tool body 1200, and the tool body 1200 can be fixed, repeatedly pressing the "drawer" to make the first connection The connector 1130 is disconnected from the second connector 1220, and the "drawer" can be taken out at this time. In addition to the tool body 1200 of the power tool 1000, the "drawer" also has a plurality of replaceable tool heads.

Therefore, when the tool body of the electric tool is not in use, the tool body can be placed in the storage box, and the storage box will provide the energy of its own first battery to the second battery of the tool body, and the storage box Energy comes from sunlight, so as long as the photovoltaic system is in a light environment, it can ensure that there is electricity to power the first battery. The electric tool of the present disclosure is suitable for outdoor carrying, can improve the user's efficiency in outdoor work, improve the reliability of the electric tool, and improve the user's experience.

The photovoltaic system 1110 and storage box 1100 of the present disclosure will be described below with reference to FIGS. 3 and 4 .

As shown in Figure 3, photovoltaic system 1110 includes: photovoltaic panel 1111, photovoltaic converter 1112 and DC-DC converter 1113. Among them, the photovoltaic panel 1111 is used to collect solar energy. The photovoltaic converter 1112 is connected to the photovoltaic panel 1111, and the photovoltaic converter 1112 is used to convert solar energy into direct current of the first voltage. The DC-DC converter 1113 is connected to the photovoltaic converter 1112. The DC-DC converter 1113 is used to convert the DC power of the first voltage into the DC power of the second voltage to charge the first battery 1120. Wherein, the first voltage is greater than the second voltage.

In this embodiment, sunlight shines on the photovoltaic panel 1111, that is, when the photovoltaic system 1110 is in a light environment, solar energy is collected through the photovoltaic panel 1111, and converted into direct current of the first voltage through the photovoltaic converter 1112, and then through the direct current. - The DC converter 1113 converts the DC power of the first voltage into the DC power of the second voltage to charge the first battery 1120 .

In order to improve the efficiency of solar energy conversion and improve charging efficiency, as shown in Figure 4, the photovoltaic system 1110 also includes: a solar charge and discharge control module 1114. Among them, the solar charge and discharge control module 1114 is provided between the photovoltaic converter 1112 and the DC-DC converter 1113. The solar charge and discharge control module 1114 is used to adjust the power output from the photovoltaic converter 1112 to the DC-DC converter 1113.

In this embodiment, the solar charge and discharge control module 1114 can detect the power generation voltage of the photovoltaic converter 1112 in real time, and track the highest voltage and current, so that the photovoltaic system 1110 outputs maximum power to charge the first battery 1120. Among them, the higher the tracking voltage, the more power can be output, thereby improving the efficiency of solar energy conversion and improving charging efficiency.

As shown in Figure 4, the solar charge and discharge control module 1114 includes: a power tracker 11141 and a pulse width modulator 11142. Among them, the power tracker 11141 is connected to the photovoltaic converter 1112. The power tracker 11141 is used to track the changes in the first voltage and the first current of the photovoltaic converter 1112, and determine the photovoltaic converter according to the changes in the first voltage and the first current. 1112 output power. The pulse width modulator 11142 is connected to the power tracker 11141 and the DC-DC converter 1113 respectively. The pulse width modulator 11142 is used to adjust the duty cycle of the pulse width modulation signal output to the DC-DC converter 1113 according to the power, so as to Adjustment of the power output to the DC-DC converter 1113 is achieved.

In this embodiment, the optimal duty cycle of the DC-DC converter 1113 can be captured through the power tracker 11141 so that the photovoltaic system 1110 outputs maximum power to charge the first battery 1120 . Among them, the method of charging the first battery 1120 may adopt a constant current and then constant voltage method.

Referring to FIG. 3 and FIG. 4 , the storage box 1100 also includes: a first charging manager 1130 . Among them, the first charging manager 1130 is provided between the DC-DC converter 1113 and the first battery 1120. The first charging manager 1130 is used to monitor the parameters of the first battery 1120, and control according to the parameters of the first battery 1120. The DC-DC converter 1113 is disconnected or connected to the first battery 1120 . The parameters of the first battery 1120 include at least one of current, voltage, temperature, and remaining power of the first battery 1120 .

In this embodiment, the first charging manager 1130 monitors the current, voltage, temperature and remaining power of the first battery 1120 in real time, and controls the DC-DC converter according to the current, voltage, temperature and remaining power of the first battery 1120 1113 is disconnected or connected to the first battery 1120 . Among them, if the remaining power of the first battery 1120 exceeds the first set remaining power (such as 90%), that is, the first battery 1120 is almost full, the first charge manager 1130 will send a signal to control the DC-DC converter 1113 The output power becomes smaller, thereby avoiding overcharging of the first battery 1120; if the temperature of the first battery 1120 exceeds the set temperature, the first charge manager 1130 will send a signal to cut off the DC-DC converter 1113 and the first The connection of the battery 1120 means that the first battery 1120 is temporarily not charged until the temperature of the first battery 1120 does not exceed the set temperature, and then the DC-DC converter 1113 is controlled to be connected to the first battery 1120, so that the first battery 1120 can be continuously charged. The battery 1120 is charged, thereby preventing the first battery 1120 from overheating; if the voltage of the first battery 1120 exceeds the set voltage, the first charge manager 1130 will send a signal to cut off the DC-DC converter 1113 and the first battery 1120 connection, that is, the first battery 1120 is temporarily not charged, thereby avoiding overvoltage of the first battery 1120; if the current of the first battery 1120 exceeds the set current, the first charge manager 1130 will send a signal to cut off the DC- The connection between the DC converter 1113 and the first battery 1120 means that the first battery 1120 is temporarily not charged, thereby preventing the first battery 1120 from overcurrent.

Referring to Figures 3 and 4, the storage box 1100 also includes: a first diode D1, the anode of the first diode D1 is connected to the DC-DC converter 1113, and the cathode of the first diode D1 is connected to the first The positive terminal of the battery 1120 is connected to prevent the first battery 1120 from charging the photovoltaic system 1110 in reverse.

The tool body 1200 of the present disclosure will be described below with reference to FIG. 5 .

As shown in FIG. 5 , the tool body 1200 also includes: a second charging manager 1230 . Wherein, the second charging manager 1230 is provided between the second connector 1220 and the second battery 1210. The second charging manager 1230 is used to monitor the parameters of the second battery 1210 and control the The second connector 1220 is disconnected or connected to the second battery 1210 .

In this embodiment, the second charging manager 1230 monitors the current, voltage, temperature, and remaining power of the second battery 1210 in real time, and makes the second connector 1220 Disconnect or connect with the second battery 1210 . Among them, if the remaining power of the second battery 1210 exceeds the first set remaining power, that is, the second battery 1210 is almost full, the second charge manager 1230 will send a signal to control the power output by the second connector 1220 to become smaller. This avoids overcharging of the second battery 1210; if the temperature of the second battery 1210 exceeds the set temperature, the second charge manager 1230 will send a signal to cut off the connection between the second connector 1220 and the second battery 1210, that is, temporarily. The second battery 1210 is not charged until the temperature of the second battery 1210 does not exceed the set temperature, and then the second connector 1220 is controlled to be connected to the second battery 1210. In this way, the second battery 1210 can be continued to be charged, thereby avoiding the need for the second battery 1210 to be charged. The second battery 1210 is overheated; if the voltage of the second battery 1210 exceeds the set voltage, the second charge manager 1230 will send a signal to cut off the connection between the second connector 1220 and the second battery 1210, that is, temporarily not charging the second battery 1210. The battery 1210 is charged, thereby avoiding overvoltage of the second battery 1210; if the current of the second battery 1210 exceeds the set current, the second charge manager 1230 will send a signal to cut off the connection between the second connector 1220 and the second battery 1210. connection, that is, the second battery 1210 is temporarily not charged, thereby preventing the second battery 1210 from overcurrent.

As shown in Figure 5, the tool body 1200 also includes: a second diode D2. The anode of the second diode D2 is connected to the second connector 1220, and the cathode of the second diode D2 is connected to the anode of the second battery 1210 to prevent reverse charging of the second battery 1210. For example, in the When the first connector 1130 is connected to the second connector 1220, the second battery 1210 is prevented from charging the first battery 1120 in reverse.

Referring to FIGS. 3 , 4 and 6 , the photovoltaic system 1110 is also connected to the first connector 1130 . Wherein, in response to the photovoltaic system 1110 being in a light environment and the remaining power of the first battery 1120 exceeding the set remaining power, the photovoltaic system 1110 and the first battery 1120 are used to power the second battery 1210; or, in response to the photovoltaic system 1110 In a light environment and the remaining power of the first battery 1120 does not exceed the set remaining power, the photovoltaic system 1110 is used to power the first battery 1120 and the second battery 1210 .

In one embodiment of the present disclosure, the storage box 1100 further includes: a first charging interface connected to the first battery 1120 . The first charging interface is used to connect to the driving power supply through the first power adapter, and use the driving power supply to supply power to the first battery 1120 .

In one embodiment of the present disclosure, when the first charging interface is connected to the driving power supply and the first connector 1130 and the second connector 1220 are connected, the driving power supply is used to supply power to the second battery 1210 .

In one embodiment of the present disclosure, the tool body 1200 further includes: a second charging interface (which may be the second connector 1220 in FIG. 2 ) connected to the second battery 1210 . The second charging interface is used to connect to the driving power supply through the second power adapter, and use the driving power supply to supply power to the second battery 1210 .

The charging principle of the power tool 1000 of the present disclosure is as follows:

When the tool body 1200 is not placed in the storage box 1100, a power adapter can be used to connect the second charging interface and the driving power supply respectively, so that the driving power supply can charge the second battery 1210.

Regardless of whether the tool body 1200 is placed in the storage box 1100 or not, the power adapter can be used to connect the first charging interface and the driving power supply respectively, so that the driving power supply can charge the first battery 1120 .

When the tool body 1200 is placed in the storage box 1100, the storage box 1100 and the tool body 1200 are connected through the first connector 1130 and the second connector 1220. When the first connector 1130 and the second connector 1220 are connected, if the first charging interface is connected to the driving power supply, the driving power supply can supply power to the second battery 1210; if the photovoltaic system 1110 is in a lightless environment, the power supply in the storage box The first battery 1120 alone charges the second battery 1210 in the tool body 1200; if the photovoltaic system 1110 is in a light environment, the remaining power of the first battery 1120 is obtained, and the remaining power of the first battery 1120 and the settings are The relationship between the remaining power determines whether to charge the second battery 1210 of the tool body 1200 only through the photovoltaic system 1110 of the storage box 1100, or whether to charge the tool through the photovoltaic system 1110 of the storage box 1100 and the first battery 1120 at the same time. The second battery 1210 of the body 1200 is charged. Wherein, when the photovoltaic system 1110 of the storage box 1100 is in a light environment, if the remaining power of the first battery 1120 of the storage box 1100 exceeds the set remaining power, the photovoltaic system 1110 of the storage box 1100 and the first battery 1120 charges the second battery 1210 of the tool body 1200 at the same time, and if the remaining power of the first battery 1120 of the storage box 1100 does not exceed the set remaining power, the photovoltaic system 1110 of the storage box 1100 simultaneously charges the storage box 1100 The first battery 1120 and the second battery 1210 of the tool body 1200 are charged.

Therefore, the power tool 1000 of the present disclosure can charge the second battery 1210 in the power tool 1000 in various ways, and the power supply systems are independent of each other. For example, in a light environment, power can be supplied through the photovoltaic system 1110 and/or The first battery 1120 or the second charging interface charges the second battery 1210; in a dark environment, the electric tool 1000 can be charged through the first battery 1120 in the storage box 1100 or through the second charging interface. To charge the second battery 1210, you can also charge the second battery 1210 through the driving power supply when the first charging interface is connected to the driving power supply and the first connector 1130 and the second connector 1220 are connected. By using the photovoltaic system 1110 to charge the first battery 1120 and/or the second battery 1210, the pressure on the power supply company to supply power to residents can be reduced, thereby achieving energy conservation and environmental protection while providing convenience to users.

To sum up, the electric tool of the present disclosure includes a storage box and a tool body; wherein the storage box includes a photovoltaic system, a first battery and a first connector, and the first battery is connected to the photovoltaic system and the first connector respectively. , the photovoltaic system is used to collect solar energy and convert the solar energy into electrical energy to power the first battery; the tool body includes a second battery and a second connector, and the second connector is connected to the second battery; wherein, in response to the first When the connector is connected to the second connector, the first battery is used to supply power to the second battery. As a result, the electric tool supplies power to the first battery through the photovoltaic system of the storage box. In this way, as long as the photovoltaic system is in a light environment, it can ensure that there is power to power the first battery and connect the first connector and the second connector. When connected, the first battery is used to supply power to the second battery, thus ensuring that there is electricity to power the second battery, improving the reliability of the power tool and enhancing the user experience.

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the disclosure that follow the general principles of the disclosure and include common common sense or customary technical means in the technical field that are not disclosed in the disclosure. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the disclosure is limited only by the appended claims.

Claims

An electric tool, characterized in that it includes:

The storage box includes a photovoltaic system, a first battery and a first connector. The first battery is connected to the photovoltaic system and the first connector respectively. The photovoltaic system is used to collect solar energy and convert the Converting solar energy into electrical energy supplies power to the first battery;

The tool body includes a second battery and a second connector, the second connector is connected to the second battery;

Wherein, in response to the connection between the first connector and the second connector, the first battery is used to supply power to the second battery.
The electric tool according to claim 1, characterized in that the photovoltaic system includes:

Photovoltaic panels, used to harvest solar energy;

A photovoltaic converter connected to the photovoltaic panel for converting the solar energy into direct current of a first voltage;

a DC-DC converter connected to the photovoltaic converter, used to convert the DC power of the first voltage into the DC power of the second voltage to charge the first battery;

Wherein, the first voltage is greater than the second voltage.
The power tool according to claim 2, wherein the photovoltaic system further includes:

A solar charge and discharge control module disposed between the photovoltaic converter and the DC-DC converter is used to adjust the power output from the photovoltaic converter to the DC-DC converter.
The electric tool according to claim 3, characterized in that the solar charge and discharge control module includes:

a power tracker connected to the photovoltaic converter, configured to track changes in the first voltage and first current of the photovoltaic converter, and determine the power output by the photovoltaic converter based on the changes;

A pulse width modulator respectively connected to the power tracker and the DC-DC converter, for adjusting the duty cycle of the pulse width modulation signal output to the DC-DC converter according to the power, so as to Adjustment of the power output to the DC-DC converter is achieved.
The electric tool according to any one of claims 2-4, characterized in that the storage box further includes:

A first charge manager disposed between the DC-DC converter and the first battery is used to monitor parameters of the first battery and control the DC-DC converter according to the parameters of the first battery. Disconnect or connect the DC converter and the first battery;

The parameters of the first battery include at least one of current, voltage, temperature, and remaining power of the first battery.
The electric tool according to claim 5, wherein the storage box further includes:

a first diode, the anode of the first diode is connected to the first charge manager, the cathode of the first diode is connected to the anode of the first battery, and is used to prevent the first battery from Reverse charging.
The electric tool according to any one of claims 1-6, characterized in that the tool body further includes:

a second charge manager disposed between the second connector and the second battery for monitoring parameters of the second battery and controlling the second connection according to the parameters of the second battery disconnect or connect between the device and the second battery.
The electric tool according to any one of claims 1-7, characterized in that the tool body further includes:

a second diode, the anode of the second diode is connected to the second connector, the cathode of the second diode is connected to the anode of the second battery, and is used to prevent the second The battery is charged in reverse.
The electric tool according to any one of claims 1-8, wherein the photovoltaic system is also connected to the first connector; wherein,

In response to the photovoltaic system being in a light environment and the remaining power of the first battery exceeding the set remaining power, the photovoltaic system and the first battery are used to power the second battery;

Or, in response to the photovoltaic system being in a light environment and the remaining power of the first battery not exceeding the set remaining power, the photovoltaic system is used to supply power to the first battery and the second battery. .
The electric tool according to any one of claims 1-9, characterized in that the storage box further includes:

A first charging interface connected to the first battery is used to connect to a driving power supply through a first power adapter, and use the driving power supply to supply power to the first battery.
The electric tool according to claim 10, further comprising:

In response to the first charging interface being connected to the driving power supply and the first connector and the second connector being connected, the driving power supply is used to supply power to the second battery.
The electric tool according to any one of claims 1-9, characterized in that the tool body further includes:

A second charging interface connected to the second battery is used to connect to a driving power supply through a second power adapter, and use the driving power supply to supply power to the second battery.
The electric tool according to any one of claims 1-12, wherein:

In response to the tool body being placed within the storage box, the first connector and the second connector are connected.