CN112821818A

CN112821818A - Control device, electric tool body, and tool system

Info

Publication number: CN112821818A
Application number: CN202011201318.8A
Authority: CN
Inventors: 毋宏兵; 刘其正; 李栋
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2019-10-31
Filing date: 2020-11-02
Publication date: 2021-05-18
Also published as: WO2021083379A1; WO2021083164A1

Abstract

The present disclosure relates to a control device, a power tool body and a tool system, the control device being selectively detachably coupled to at least one power tool body to drive a motor of the at least one power tool body, the device comprising: the device comprises a device main body, a power supply assembly, a device interface, a first connecting assembly, a driving circuit and a first control assembly, wherein the first control assembly is arranged in the device main body, is electrically connected with the first signal terminal group and is used for controlling the work of the at least one electric tool main body according to information received by the first signal terminal group under the condition that the device interface and the tool interface of the at least one electric tool main body are in a matching state. The control device provided by the disclosure can realize efficient control on at least one electric tool main body, and is beneficial to reducing cost and improving working efficiency.

Description

Control device, electric tool body, and tool system

Technical Field

The present disclosure relates to power tool technologies, and in particular, to a control device, an electric tool body, and a control system.

Background

With the continuous development of the technology, more and more portable electric tools are used in thousands of households and in all industries, and during work, an operator can use a plurality of electric tools in the same time period.

Therefore, how to realize simple control of a plurality of different electric tools and reduce the cost becomes the next major issue.

Disclosure of Invention

In view of this, the present disclosure provides a control device, an electric tool body and a tool system to realize simple control of a plurality of different electric tools and reduce cost.

According to one aspect of the present disclosure, there is provided a control device selectively detachably coupled with at least one power tool body, for driving a motor of the at least one power tool body, the device including:

the main body of the device is provided with a plurality of grooves,

a power supply module disposed in the device body and including a power input interface for receiving an external power source, the power supply module being configured to convert the external power source to output power suitable for the at least one power tool body;

the device interface is arranged on the device main body and is used for being detachably connected with the tool interface of at least one electric tool main body;

the first connecting assembly is arranged on the device interface and comprises a first power supply terminal group and a first signal terminal group, the first power supply terminal group is used for transmitting the electric energy output by the power supply assembly to the at least one electric tool main body, and the first signal terminal group is used for carrying out information transmission with the at least one electric tool main body;

the driving circuit is electrically connected between the power supply assembly and the first power supply terminal group and used for selectively conducting or disconnecting the electrical connection between the power supply assembly and the first power supply terminal group;

the first control assembly is arranged in the device main body, is electrically connected with the first signal terminal group and is used for controlling the work of the at least one electric tool main body according to the information received by the first signal terminal group under the condition that the device interface and the tool interface of the at least one electric tool main body are in a matching state.

In one possible embodiment, the power supply assembly comprises:

and the first power supply branch circuit is used for converting alternating current into direct current matched with the motor of the at least one electric tool main body and supplying power to the motor of the at least one electric tool main body.

In one possible embodiment, the power supply assembly further comprises:

and the second power supply branch of the electric tool main body is used for converting the direct current into direct current matched with the motor of the at least one electric tool main body and supplying power to the motor of the at least one electric tool main body.

In one possible implementation, the first power supply branch includes:

the rectifying circuit is used for converting alternating current into direct current;

and the filter circuit is electrically connected with the rectifying circuit and is used for filtering the direct current and outputting stable direct current.

In one possible embodiment, the filter circuit includes a filter capacitor, and the capacitance value of the filter capacitor is less than 250 uf.

In one possible implementation, the second power supply branch includes:

the energy storage assembly is used for storing electric energy;

and the direct current-direct current conversion circuit is connected to the energy storage assembly and is used for converting the direct current in the energy storage assembly into direct current matched with the motor of the at least one electric tool main body.

In a possible embodiment, the energy storage component is further configured to store the dc power converted by the first power branch.

In one possible embodiment, the external power source is alternating current,

the first control assembly is used for selecting the first power branch to supply power to the motor of the at least one electric tool main body under the condition that the power input interface of the power supply assembly receives the power input of an external power supply; or

And under the condition that the power input interface of the power supply assembly does not receive the power input of an external power supply, the first control assembly is used for selecting the second power branch to supply power to the motor of the at least one electric tool main body.

In a possible embodiment, in the case where the motor of the at least one power tool body is a unidirectional brushless motor, the first power terminal group comprises at least 2 power terminals for supplying power to the motor winding connected thereto; or

In the case where the motor of the at least one power tool body is a three-phase brushless motor, the first power terminal group includes at least 3 power terminals for supplying power to a motor winding connected thereto.

In one possible embodiment, the first signal terminal group includes a first power terminal for supplying power to a circuit other than the motor in the at least one power tool main body using the electric power output from the power supply module, and a first communication terminal for information transmission with the at least one power tool main body.

In one possible embodiment, the first power supply terminal includes at least 2 pole pieces, and the pole pieces correspond to the positive power supply terminal and the negative power supply terminal respectively.

In a possible embodiment, the first communication terminal comprises at least 1 pole piece for information transfer with the at least one power tool body; or

The first communication terminal and a positive power terminal of the first power terminal share a pole piece.

In one possible embodiment, the first signal terminal group includes a wireless transceiver module for communicating information with the at least one power tool main body.

In one possible embodiment, the wireless transceiver component includes at least one of a bluetooth unit, a WiFi module, and a zigbee module.

In one possible embodiment, the information received by the first signal terminal group includes:

identification information of the at least one power tool body;

wherein the controlling of the operation of the at least one power tool body comprises:

determining a category of the at least one power tool body according to the identification information of the at least one power tool body;

and selecting a corresponding control program according to the category to control the work of the at least one electric tool main body.

a status signal of the at least one power tool body, the status signal including one or more of a voltage signal of the motor, a current signal of the motor, a temperature signal of the motor, a rotational speed signal, a power-on signal, a power-off signal, and an illumination signal;

comparing the state signal with a preset state signal to obtain a comparison result;

and generating a first control signal to control the at least one electric tool main body to execute corresponding operation under the condition that the comparison result shows that the state of the at least one electric tool main body is an abnormal state.

In a possible embodiment, in a case that the abnormal state is a connection abnormal state, the generating the first control signal controls the at least one power tool main body to perform a corresponding operation, including:

and transmitting the first control signal through the first signal terminal group to control the at least one electric tool main body to stop.

In a possible embodiment, in a case that the abnormal state is a voltage abnormality, the generating the first control signal to control the at least one power tool main body to perform the corresponding operation includes:

the first control signal is transmitted through the first signal terminal group to control the voltage of the at least one power tool main body, or to control the at least one power tool main body to stop.

In one possible embodiment, when the abnormal state is an excessively high temperature of the at least one power tool main body or an excessively high motor rotation speed of the at least one power tool main body, the generating the first control signal to control the at least one power tool main body to perform the corresponding operation includes:

and transmitting the first control signal through the first signal terminal group to control the motor of the at least one electric tool main body to reduce the speed or control the electric tool main body to stop.

In a possible embodiment, the apparatus further comprises:

and an alarm component connected to the first control component and used for giving an alarm when the comparison result shows that the state of the at least one electric tool main body is an abnormal state.

In one possible embodiment, the selecting the corresponding control program according to the category to control the operation of the at least one power tool main body includes:

receiving a first command signal transmitted from the at least one electric tool main body through the first signal terminal group;

and generating a second control signal according to the first command signal to control the at least one electric tool main body to execute corresponding operation.

In one possible embodiment, the apparatus further includes a signal input component electrically connected to the first control component, and the selecting the corresponding control program according to the category to control the operation of the power tool main body includes:

receiving a second instruction signal input by a user through the signal input component;

and generating a third control signal according to the second instruction signal to control the at least one electric tool main body to execute corresponding operation.

In one possible embodiment, the corresponding operation includes one of activation or deactivation of at least one power tool main body, forward or reverse rotation of a motor, motor speed adjustment, and illumination.

In one possible embodiment, in the case where the motor speed is adjusted to slow braking, the first control component is configured to:

and periodically controlling the drive circuit to be switched on or switched off so as to realize the slow braking of the motor of the electric tool main body.

In one possible embodiment, the signal input assembly includes a rotation speed adjustment unit, and in the case where the power tool body coupled to the apparatus does not require motor rotation speed adjustment, the operations further include:

and setting the second instruction signal input by the rotating speed adjusting unit as invalid.

In one possible embodiment, the first control component is further configured to:

and under the condition that the program to be updated exists in the external equipment connected with the external equipment, automatically acquiring the program to be updated and carrying out updating operation.

According to an aspect of the present disclosure, there is provided a power tool body including:

the tool interface is arranged on the electric tool main body and is used for being detachably connected with the device interface of the control device;

the second connecting assembly is arranged on the tool interface and comprises a second power supply terminal group and a second signal terminal group, the second power supply terminal group is used for receiving electric energy transmitted by the control device, and the second signal terminal group is used for carrying out information transmission with the control device;

the identification component is arranged on the electric tool main body, is connected to the second connecting component and is used for recording identification information of the electric tool;

a second control assembly disposed on the power tool body configured to:

reading the identification information recorded in the identification component;

and sending the identification information to the control device, so that the control device determines the type of the electric tool according to the identification information, and selects a corresponding control program to control the work of the electric tool.

In a possible implementation, the identification component comprises one of a dial switch, a pin header and a resistor.

In one possible embodiment, the second signal terminal group includes a second power terminal for communication between the power tool main body and the control device, and a second communication terminal for receiving power from the control device to supply power to circuits in the power tool main body other than a motor.

In one possible embodiment, the second control component is further configured to:

reading a state signal of the electric tool main body;

and sending the state signal to the control device by using the second signal terminal group, wherein the state signal comprises one or more of a voltage signal of the motor, a current signal of the motor, a temperature signal of the motor, a rotating speed signal, a starting signal, a shutdown signal and an illumination signal.

generating a first instruction signal according to the action of a user;

and sending the first command signal to the control device by using the second signal terminal group.

According to an aspect of the present disclosure, there is provided a tool system, the system comprising:

the control device;

at least two electric tool main bodies, wherein each electric tool main body can be respectively matched and connected with the control device, and the identification information recorded by the identification components in each electric tool main body is different from each other.

The control device can be detachably connected with at least one electric tool body in a matching mode, supplies power to the at least one electric tool body, and can realize corresponding control according to the type of each electric tool body.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 shows a schematic diagram of a control device according to an embodiment of the present disclosure.

Fig. 2 shows a block diagram of a control device according to an embodiment of the present disclosure.

Fig. 3 shows a block diagram of a control device according to an embodiment of the present disclosure.

Fig. 4 shows a schematic diagram of a control device according to an embodiment of the present disclosure.

Fig. 5 shows a schematic diagram of a first power supply branch according to an embodiment of the present disclosure.

FIG. 6 illustrates a workflow diagram of a first control assembly according to an embodiment of the present disclosure.

FIG. 7a illustrates a flow chart of operation of the first control assembly 16 according to an embodiment of the present disclosure.

Fig. 7b shows a work flow diagram of step S111 according to an embodiment of the present disclosure.

Fig. 7c shows a work flow diagram of step S111 according to an embodiment of the present disclosure.

Fig. 7d shows a work flow diagram of step S1112 according to an embodiment of the present disclosure.

Fig. 7e shows a work flow diagram of step S1112 according to an embodiment of the present disclosure.

Fig. 7f shows a work flow diagram of step S111 according to an embodiment of the present disclosure.

Fig. 8a shows a flowchart of step S12 in an embodiment of the present disclosure.

Fig. 8b shows a flowchart of step S12 in an embodiment of the present disclosure.

Fig. 9 shows a schematic view of a power tool body according to an embodiment of the present disclosure.

Fig. 10 shows a block diagram of a power tool body according to an embodiment of the present disclosure.

Fig. 11 shows a flowchart of the operation of the second control unit in the power tool main body according to an embodiment of the present disclosure.

Fig. 12 shows a schematic view of a power tool body 20 according to an embodiment of the present disclosure.

Fig. 13 shows a flowchart of the operation of the second control unit in the power tool main body according to an embodiment of the present disclosure.

Fig. 14 shows a flowchart of the operation of the second control unit in the power tool main body according to an embodiment of the present disclosure.

FIG. 15 shows a block diagram of a control system according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

Referring to fig. 1, fig. 1 is a schematic diagram illustrating a control device according to an embodiment of the disclosure.

The control device and the electric tool body can be in a separated state, the electric tool body can be detachably matched and connected with the control device, and when the electric tool body is matched and connected with the control device, a complete electric tool can be formed.

The control device provided by the disclosure can be used for controlling various electric tool main bodies, such as an electric drill, a hair drier and the like. When one electric tool main body (such as an electric drill) is matched and connected with the control device, the control device can control the electric drill (such as power-on, power-off, control of the rotating speed and reverse rotation of a motor of the electric drill, operation of an illuminating lamp and the like).

Therefore, the control device provided by the disclosure can realize the control of various electric tool bodies, each electric tool body does not need to be provided with a separate control component, and under the condition that a certain electric tool body needs to be used for working, the electric tool body is matched and connected with the control device, so that the electric tool body can be controlled through the control device. The control of a plurality of electric tools is realized by one control device, so that the cost of the electric tool main body can be reduced, and the flexibility of the control can be increased.

The control device and the electric tool main body will be described below.

Referring to fig. 2, fig. 2 shows a block diagram of a control device according to an embodiment of the present disclosure.

The control device 1 is selectively detachably coupled to at least one electric tool body 20, and drives a motor of the at least one electric tool body 20.

As shown in fig. 1 and 2, the apparatus includes:

the main body 10 of the apparatus is,

a power supply module 13 disposed in the device body 10 and including a power input interface (not shown in fig. 1) for receiving an external power source, the power supply module 13 being configured to convert the external power source to output power suitable for the at least one power tool body 20;

a device interface 11 provided on the device body 10 for detachably connecting with a tool interface of at least one electric tool body 20;

a first connection module 15, disposed on the device interface 11, including a first power terminal group 151 and a first signal terminal group 152, where the first power terminal group 151 is used for transmitting the electric energy output by the power supply module 13 to the at least one electric tool main body 20, and the first signal terminal group 152 is used for information transmission with the at least one electric tool main body 20;

a driving circuit 14 electrically connected between the power supply module 13 and the first power terminal set 151, for selectively turning on or off the electrical connection between the power supply module 13 and the first power terminal set 151;

the first control component 16 is disposed in the device main body 10, electrically connected to the first signal terminal group 152, and configured to control the operation of the at least one power tool main body 20 according to the information received by the first signal terminal group 152 when the device interface 11 and the tool interface of the at least one power tool main body 20 are in a mated state.

The control device can be detachably connected with at least one electric tool main body 20 in a matching mode, supplies power to the at least one electric tool main body 20, and can realize corresponding control according to the type of each electric tool main body 20.

In one possible embodiment, the power tool body 20 may include a drill, a saw, scissors, a blower, etc., and the present disclosure is not limited to a particular type of power tool body 20.

It should be noted that the power tool main body 20 described in the embodiments of the present disclosure is a power tool removal control portion, and each power tool main body 20 may be controlled by the control device 1 in the embodiments of the present disclosure.

There are many possible embodiments of the various components and circuits of the control device 1 described in the present disclosure, and the control device 1 will be described below with reference to the many possible embodiments.

Referring to fig. 3, fig. 3 shows a block diagram of a control device according to an embodiment of the present disclosure.

In a possible embodiment, as shown in fig. 3, each component (e.g. power supply component) in the control device 1 may include a plurality of sub-components, and the functions of the control device in fig. 2 may be realized through the cooperation of each sub-component; the control device 1 may also comprise other components, such as signal input components, to achieve a variety of functions.

As shown in fig. 3, the power supply assembly 13 of the control device 1 may include a first power branch 130 and a second power branch 131, and the first power branch 130 and the second power branch 131 may be in an electrical connection relationship. The first power supply branch 130 may include a rectifying circuit 1301 and a filtering circuit 1302, and the rectifying circuit 1301 and the filtering circuit 1302 may be electrically connected. The second power branch 131 may include a power storage component 1311 and a dc-dc conversion circuit 1312, and the power storage component 1311 and the dc-dc conversion circuit 1312 may be electrically connected. Besides, the control device 1 may further comprise a signal input component 18 and an alarm component 17.

An exemplary description of the control device shown in fig. 3 will be given below.

The power supply assembly 13 shown in fig. 3 will be described first.

In a possible embodiment, as shown in fig. 3, the power supply assembly 13 may include:

the first power branch 130 is configured to convert ac power into dc power matched with the motor of the at least one power tool main body 20, so as to supply power to the motor of the at least one power tool main body 20.

In the case where the external power source is AC power, the first power branch 130 may receive AC power and AC/DC convert the AC power to obtain the required DC power to power the motor of the at least one power tool main body 20.

In one possible implementation, the first power branch 130 includes:

a rectifier circuit 1301 for converting alternating current into direct current;

the filter circuit 1302 is electrically connected to the rectifier circuit 1301, and is configured to filter the direct current and output a stable direct current.

The first power supply branch 130 of the power supply assembly 13 will be described below by way of example in connection with other possible embodiments of the control device.

Referring to fig. 4, fig. 4 is a schematic diagram of a control device according to an embodiment of the disclosure. As shown in fig. 4, the control device includes a power supply assembly 13, a driving assembly 14, a first connecting assembly 15, and a first control assembly 16.

In a possible embodiment, as shown in fig. 4, the power supply assembly 13 may further include a safety unit, and in case of receiving an external power source (for example, ac power), the external power source may be subjected to a safety check to check whether the ac power meets the specification.

After checking for compliance with the specification, the ac power may be transmitted to the first power branch 130 for rectification and filtering (e.g., the ac power may be rectified and filtered by the first power branch 130 in fig. 3) to convert the ac power to dc power.

Of course, the power supply of the power supply assembly 13 (for example, can be implemented by the second power branch 131 in fig. 3) can also perform DC-DC conversion on the direct current to output the required direct current.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a first power branch according to an embodiment of the disclosure.

As shown in fig. 5, an external power supply (ac power) may sequentially pass through a fuse F1, a voltage dependent resistor VR1, a capacitor C43, discharge resistors R76 and R77, and a common mode inductor T1, and then input the external power supply to a rectifier bridge BR1 (i.e., a rectifier circuit 1301) for rectification, and then filter and stabilize the rectified signal through a thin film capacitor C42 (i.e., a filter circuit 1302), thereby obtaining a dc power.

The present disclosure does not limit the specific specifications of each component in the first power branch circuit shown in fig. 5, and those skilled in the art can select components with suitable sizes and specifications as needed.

Of course, the above description is exemplary and should not be construed as limiting the present disclosure.

In other embodiments, the first power supply branch 130 may include other components, and the rectifier circuit 1301 and the filter circuit 1302 may also be implemented in other manners, which is not limited in this disclosure.

In one possible implementation, the filter circuit 1302 may include a filter capacitor, and the capacitance of the filter capacitor may be less than 250uF or 10uF to 250 uF.

This is disclosed through the electric capacity that selects to be less than 250uf as filter capacitor, compares in correlation technique, can reduce the volume of electric capacity to reduce the space that occupies printed circuit board PCB, improve PCB's utilization ratio, and can filter the voltage of rectification output, make voltage stable, under the prerequisite that reduces filter capacitor occupation space, reach the optimization of filtering effect. Moreover, due to the selection of the filter capacitor, when the device runs, the power factor can be improved, and the impact of electric energy can be reduced when the device is started.

The motor of the power tool body 20 described in the present disclosure may be a high voltage dc motor, which may be, for example, a brushless, hall-less motor. When the motor is controlled, if the position of the rotor of the motor is detected, the direct current which needs to be output is in a stable state, otherwise, the detection of the position of the rotor may be inaccurate, and the motor may not be driven correctly.

Therefore, after the alternating current is rectified, the alternating current can be filtered and stabilized through the filter capacitor, so that stable direct current is obtained, the position of the rotor can be accurately detected, and the motor can be driven correctly.

In addition, the filter capacitor used in the method is small, the cost of the control device can be reduced, the control device is miniaturized, and the torque pulse of the motor of the electric tool can be obviously reduced. The second power branch 131 of the power supply assembly will be exemplarily described below.

Referring to fig. 3, in a possible implementation manner, as shown in fig. 3, the power supply assembly 13 may further include:

and a second power branch 131, configured to convert the dc power into a dc power matched with the motor of the at least one power tool main body 20, so as to supply power to the motor of the at least one power tool main body 20.

The second power branch 131 can convert the stored dc power into a dc power suitable for the motor of the at least one power tool main body 20, and can also convert the dc power output by the first power branch 131 into a dc power suitable for the motor of the at least one power tool main body 20.

The control device provided by the present disclosure may receive ac power to convert the ac power to dc power for driving the motor of the power tool, and may convert the stored dc power to obtain dc power matched with the power tool body 20 for powering the motor of the power tool body 20.

In one possible implementation, as shown in fig. 3, the second power branch 131 may include:

energy storage assembly 1311 for storing electrical energy;

a dc-dc conversion circuit 1312 coupled to the energy storage assembly 1311 for converting dc power in the energy storage assembly to dc power compatible with the motor of the at least one power tool body 20.

In one possible embodiment, the energy storage component 1311 may store the dc power converted in the first power branch 130.

The present disclosure does not limit the specific implementation manners of the energy storage component 1311 and the DC-DC conversion circuit 1312, and a person skilled in the art may select a specific energy storage element (for example, a battery) to implement the energy storage component 1311 as needed, as long as the selected device can implement the functional interface implemented by the energy storage component 1311, or select a specific DC/DC converter to implement the DC-DC conversion circuit 1312 as needed, as long as the selected device can implement the function of the DC-DC conversion circuit 1312.

In a possible embodiment, the external power source may be an alternating current, and in the case that the power input interface of the power supply module 13 receives the power input of the external power source, the first control module may be configured to select the first power branch 130 to supply power to the motor of the at least one power tool main body 20; or

In the case where the power input interface of the power supply module 13 does not receive the power input from the external power source, the first control module 16 may be configured to select the second power branch 131 to supply power to the motor of the at least one power tool main body 20.

The power supply assembly 13 of the present disclosure can select a corresponding power supply mode to supply power to the motor of the electrical tool 2 according to whether ac power is input.

The second power supply branch 131 of the power supply assembly 13 will be described below by way of example in connection with other possible embodiments of the control device.

Continuing to refer to fig. 4, in one possible embodiment, the second power branch 131 may be integrated into the power supply shown in fig. 4, and the power supply shown in fig. 4 may include the energy storage device 1311 and the dc-dc conversion circuit 1312 shown in fig. 3. The power source shown in fig. 4 is connected to the first connecting block 15, the first control block 16, and can output power to the power tool main body through the first connecting block 15 and supply power to the first control block 16.

The power supply assembly 13 is described above by way of example, and it should be understood that the present disclosure is not limited thereto, and the above description should not be taken as limiting the present disclosure.

The following is an exemplary description of possible implementations of the first connection assembly 15 in various embodiments of the present disclosure.

Referring to fig. 2 and the description of fig. 2, and referring to fig. 3, the first connection assembly 15 includes a first power terminal set 151 and a first signal terminal set 152.

In the embodiments of the present disclosure, the number of the first power terminal group 151 and the first signal terminal group 151 is different according to different types of motors of the power tool main body 20.

In a possible embodiment, in the case where the motor of the at least one power tool body 20 is a unidirectional brushless motor, the first power terminal group 151 may include at least 2 power terminals for supplying power to the motor windings connected thereto; or

In the case where the motor of the at least one power tool main body 20 is a three-phase brushless motor, the first power terminal group 151 may include at least 3 power terminals for supplying power to a motor winding connected thereto.

In various embodiments of the present disclosure, the specific number of power terminals included in the first power terminal group 151 may be determined according to the motor type of the power tool main body 20, and the number of power terminals of the first power terminal group 151 may be other for other motors.

In one possible embodiment, the first power terminal group 151 may include the same number of power terminals as the power terminal of the power tool main body 20.

In one example, the number of power terminals of the power tool main body 20 and the number of power terminals of the first power terminal group 151 of the control device 1 may be 3.

The first connection assembly 15 will be described below by way of example with reference to other possible embodiments of the control device.

With continued reference to fig. 4, an example of the first power terminal set 151 is shown in fig. 4.

As shown in fig. 4, the first power supply terminal group 151 may include 3 power supply terminals: the power supply terminal U, the power supply terminal V, and the power supply terminal W (corresponding to the second power supply terminal group of the power tool body 20).

In one possible embodiment, each power terminal may include a pole piece.

This is disclosed can realize joining in marriage of controlling means 1 and electric tool main part 20 through the pole piece, and under the circumstances that the two joined in marriage, each power supply terminal of controlling means 1's first power terminal group 151 and each power supply terminal of electric tool main part 20's second power terminal group pass through the pole piece butt joint, like this, can realize pluggable with the mode of low cost to improve controlling means's commonality, practicality.

Of course, in some possible embodiments, the first power terminal group may include as many power terminals as possible in order to be suitable for various motors, and the first control assembly 16 may invalidate the redundant power terminals when the motors require less power terminals than the number of power terminals of the first power terminal group 151. That is, the control device 1 may determine the power supply scheme according to the different types of the power tool main body 20 and shield its power supply function when part of the power terminals of the first power terminal group 151 are not used.

For example, the number of the power terminals of the first power terminal group 151 may be set to 3, and when the motor of the power tool main body 20 coupled with the control device 1 is a three-phase brushless motor, the first control component 15 controls the 3 power terminals of the first power terminal group 151 to supply power to the motor of the power tool main body 20; when the motor of the power tool main body 20 coupled to the control device 1 is a unidirectional brushless motor, the first control unit 15 controls 2 power terminals of the first power terminal group 151 to supply power to the motor of the power tool main body 20, and shields the power supply function of the other power terminal.

Of course, the above description of the first power terminal group 151 is exemplary and should not be considered as limiting the present disclosure, and in other embodiments, the number of the power terminals of the first power terminal group 151 of the control device 1 may be arbitrary, and the present disclosure does not limit this.

Various possible embodiments of the first signal terminal group 152 will be exemplarily described below.

In various embodiments of the present disclosure, the first signal terminal group 152 of the first connection assembly 15 shown in fig. 2 and 3 may include three signal terminals, and through the three signal terminals, the first signal terminal group 152 of the present disclosure may implement communication with the power tool main body and may implement power supply to other circuits of the power tool main body besides the motor.

In one possible embodiment, the first signal terminal group 152 may include a first power terminal, a first communication terminal, and the first power terminal may be used for supplying power to the electric circuit except the motor in the at least one power tool main body 20 by using the electric power output by the power supply assembly 13, and the first communication terminal is used for information transmission with the at least one power tool main body 20.

The first power supply terminal may include at least two sets of power supply terminals for supplying power to circuits other than the motor, and may include, for example, a power supply terminal VCC and a power supply terminal GND. The terminal form of the first power terminal may include various types, for example, the power terminals of the first power terminal group that can be multiplexed to supply power to the motor, or at least two groups of power terminals that are separately provided in addition, and the power source of the first power terminal may include various types, for example, an alternating current power source, a direct current power source, a power source that supplies power to the motor, and the like.

In one example, the power tool body 20 may include a second control component in addition to a motor, and the first power terminal may be used to power the second control component.

In one possible embodiment, the first communication terminal includes at least 1 pole piece for communicating information with the at least one power tool body 20; or

It should be noted that the present disclosure does not limit the embodiment in which the first communication terminal and the positive power supply terminal VCC of the first power supply terminal share one pole piece, and those skilled in the art can refer to the related art to implement the embodiments.

In other embodiments, the embodiment of the present disclosure may further obtain the electric energy of the first power terminal group to power the second control module, for example, may obtain the three-phase power output to the motor to power the second control module, in which case, the first power terminal may reduce the setting of the positive power terminal VCC.

Continuing to refer to fig. 4, fig. 4 is a schematic diagram of a first communication terminal of the control device of the present disclosure.

As shown in fig. 4, in the first connection assembly 15, the first power terminal may include a positive power terminal VCC and a negative power terminal GND, and the first communication terminal is a TX/RX terminal.

Of course, in other examples, the positive power supply terminals VCC and TX/RX terminals may be combined.

Of course, the control device 1 may communicate with the electric tool main body 20 in a wireless manner, in addition to the wired manner.

In one possible embodiment, the first signal terminal set 152 may include a wireless transceiver component for communicating information with the at least one power tool body 20.

The first signal terminal group 152 according to various embodiments of the present disclosure may receive various information transmitted from the power tool main body, and the following description will exemplarily describe information that the first signal terminal group 152 may receive.

In one possible implementation, the information received by the first signal terminal set 152 may include:

identification information of the at least one power tool main body 20.

According to various embodiments of the present disclosure, the type of each of the at least one power tool main body 20 may be different, and in each power tool main body 20, identification information of each power tool main body 20 may be recorded, and when the power tool main body 20 is connected to the control device 1, the power tool main body 20 may transmit its own identification information to the control device 1 through the first signal terminal group 152 (e.g., TX/RX).

the status signal of the at least one power tool body 20 includes one or more of a voltage signal of the motor, a current signal of the motor, a temperature signal of the motor, a rotational speed signal, a power-on signal, a power-off signal, and an illumination signal.

Of course, the above description is exemplary, and the status signal of the power tool main body 20 may include other status signals, for example, a maintenance status signal for displaying a maintenance period of the power tool main body 20 or indicating whether maintenance should be performed.

While the first connecting assembly 15 of the control device 1 has been described above, it should be understood that the above description is exemplary and should not be construed as limiting the present disclosure, and that one skilled in the art can adapt the first connecting assembly 15 as needed and as appropriate, and the present disclosure is not limited thereby.

Although the present disclosure describes an embodiment in which the power tool main body 20 transmits a voltage signal of the motor and a current signal of the motor to the control device, it should be understood that the present disclosure is not limited thereto, and in other embodiments, the voltage signal of the motor and the current signal of the motor may be obtained by the control device itself, and when the control device supplies power to the motor, the voltage signal of the motor and the current signal of the motor may be obtained.

The first control assembly 16 is described below by way of example.

In a possible embodiment, the first control assembly 16 shown in fig. 2, fig. 3 and the like may be used to implement control over power supply, functions and the like of itself, and may also implement control over power supply, functions and the like of the power tool main body 20.

In one possible embodiment, the first control component 16 may be implemented by various control chips, for example, by using a general processing chip, including a single chip, a central processing unit, a field programmable gate array, a digital signal processor, etc.; or may be implemented by a dedicated control chip.

The first control assembly 16 will be described below in connection with other possible embodiments of the control device.

Referring to fig. 4, as shown in fig. 4, the first control component 16 may include a single chip and a motor driving chip.

The type of the singlechip and the motor driving chip is not limited in the disclosure, and the skilled person can select the type according to the requirement.

A possible embodiment of the operation of the first control assembly 16 will be described below.

Referring to fig. 6, fig. 6 illustrates a flow chart of the operation of the first control assembly 16 according to an embodiment of the present disclosure.

In the case of receiving the identification information transmitted from the power tool main body 2 through the first signal terminal group 152, the first control unit 16 may control the operation of the power tool main body according to the identification information of the power tool main body 2, as shown in fig. 2 and 3.

In one possible embodiment, as shown in fig. 6, the controlling the operation of the at least one power tool main body 20 may include:

a step S11 of determining a category of the at least one electric tool main body 20 based on the identification information of the at least one electric tool main body 20;

in step S12, the control program corresponding to the category selection is used to control the operation of the at least one electric tool main body 20.

According to various embodiments of the present disclosure, each of the at least one power tool main body 20 may be different in type, and in each power tool main body 20, identification information of each power tool main body 20 may be recorded, and when the power tool main body 20 is connected to the control device 1, the power tool main body 20 may transmit its own identification information to the control device 1 through the first signal terminal group 152 (e.g., TX/RX pole piece).

The first control module 16, upon receiving the identification information of the electric tool main body 20, may determine the type of the electric tool main body 20 based on the identification information, and select a control program corresponding to the identification information from among control programs configured in advance to control the operation of the electric tool main body 20.

The first control module 16 can control the power supply mode, the motor operation mode, and the operation mode of other components of the power tool main body 20 according to the selected control program, thereby implementing various functions of the power tool main body 20.

The first control assembly 16 may further include a memory (not shown) in which a plurality of identification information, and a control program corresponding to each identification information are stored. After the first control component 16 receives the identification information transmitted from the power tool main body 20, the first control component 16 may compare the received identification information with the identification information stored in the memory, thereby matching the identification information corresponding to the received identification information and the control program.

The first control module 16, upon receiving the status signal of the power tool main body 20 via the first signal terminal group 152, may control the operation of the power tool main body 20 according to the received status signal, which will be described as an example.

Referring to fig. 7a, fig. 7a illustrates a flow chart of the operation of the first control assembly 16 according to an embodiment of the present disclosure.

In a possible embodiment, the controlling the operation of the at least one power tool body 20 may include:

step S110, comparing the state signal with a preset state signal to obtain a comparison result;

step S111, when the comparison result shows that the state of the at least one electric tool main body 20 is an abnormal state, generating a first control signal to control the at least one electric tool main body 20 to perform a corresponding operation.

After the power tool body 20 is successfully mated with the control device 1, the power tool body 20 may collect its own status signal and transmit the status signal to the control device 1 through the first signal terminal 152.

After the control device 1 receives the status signal of the power tool body 20, it can compare it with the stored preset status signal to determine whether the status of the power tool body 20 is normal, and in case the status of the power tool body 20 is not normal, control the power tool body 20 to change the status of the power tool body 20 or protect it.

Referring to fig. 7b, fig. 7b is a flowchart illustrating the operation of step S111 according to an embodiment of the disclosure.

In a possible embodiment, in the case that the abnormal state is a connection abnormal state, the step S111 of generating a first control signal to control the at least one power tool main body 20 to perform a corresponding operation may include:

step S1111, transmitting the first control signal through the first signal terminal set 152 to control the at least one power tool main body 20 to stop.

When the power tool main body 20 is successfully mated with the control device 1, the status signal of the power tool main body 20 can be periodically collected, and the collected status signal can be transmitted to the control device 1. However, in the case where the control device 1 does not receive the status signal transmitted from the power tool main body 20 for a certain period of time, or in the case where the control device 1 itself does not respond, the control device 1 may determine that a connection abnormality occurs in connection with the power tool main body 20, and in this case, the first control unit 16 of the control device 1 may transmit the first control signal to control the power tool main body 20 to stop.

In a possible embodiment, the control device 1 may also generate an alarm signal to alert the user of the check by the first control component 16 in the abnormal connection state.

Referring to fig. 7c, fig. 7c is a flowchart illustrating the operation of step S111 according to an embodiment of the disclosure.

In a possible embodiment, in the case that the abnormal state is a voltage abnormality, the step S111 of generating the first control signal to control the at least one power tool main body 20 to perform the corresponding operation includes:

step S1112, transmitting the first control signal through the first signal terminal set to control the voltage of the at least one power tool main body 20, or controlling the at least one power tool main body 20 to stop.

In one possible embodiment, the voltage anomaly may include an over-voltage anomaly, a low-voltage anomaly.

The control device proposed by the present disclosure can control the electric tool main body to perform different operations according to different situations of voltage abnormality, which will be described as an example below.

Referring to fig. 7d, fig. 7d is a flowchart illustrating the operation of step S1112 according to an embodiment of the disclosure.

In the case that the voltage abnormality is an overvoltage abnormality, the step S1112 of transmitting the first control signal through the first signal terminal group 152 to control the voltage of the at least one power tool main body 20 may include:

step S11121, the first control signal is transmitted through the first signal terminal group 152 to control the voltage of the at least one electric tool main body 20 to be reduced.

Referring to fig. 7e, fig. 7e is a flowchart illustrating the operation of step S1112 according to an embodiment of the disclosure.

In the case where the voltage abnormality is a low voltage abnormality, the transmitting the first control signal through the first signal terminal group 152 to control the voltage of the at least one power tool main body 20 may include:

in step S11122, the first control signal is transmitted through the first signal terminal group 152 to control the voltage of the at least one electric tool main body 20 to be boosted.

Of course, the abnormal state may also include current abnormality, such as excessive current, and insufficient current.

In the case of excessive current, the method may include:

the first control signal is transmitted through the first signal terminal group 152 to control the voltage of the at least one power tool main body 20 to be reduced.

In the case where the current is too small, it may include:

the first control signal is transmitted through the first signal terminal group 152 to control the voltage of the at least one power tool main body 20 to be boosted.

It should be noted that the above description is exemplary and not exhaustive, and those skilled in the art may control the power tool main body to perform other operations according to other states, and the disclosure is not limited thereto.

Referring to fig. 7f, fig. 7f is a flowchart illustrating the operation of step S111 according to an embodiment of the disclosure.

In a possible embodiment, when the abnormal state is that the temperature of the at least one power tool main body 20 is too high or the motor rotation speed of the at least one power tool main body 20 is too high, the step S111 of generating the first control signal to control the at least one power tool main body 20 to perform the corresponding operation may include:

step S1113, the first control signal is transmitted through the first signal terminal group 152 to control the motor of the at least one electric tool main body 20 to perform speed reduction, or to control the electric tool main body 20 to stop.

It should be appreciated that the above description of the first control assembly generating the first control signal to control the at least one power tool body 20 to perform the corresponding operation is exemplary and should not be taken as a limitation of the present disclosure.

With continuing reference to fig. 3, in a possible implementation, as shown in fig. 3, the control device 1 may further include:

and an alarm unit 17 connected to the first control unit 16 for giving an alarm when the comparison result indicates that the state of the at least one electric tool body 20 is abnormal.

In one possible embodiment, the alarm component 17 may be an alarm bell or the like, and when the comparison result shows that the state of the power tool main body 20 is abnormal, the first control component 16 may issue an alarm signal, thereby causing the alarm bell to issue an alarm bell.

In other embodiments, the alarm component 17 may also be in other forms, for example, after the first control component 16 sends out the alarm signal, the alarm component 17 may send out a short message to the user, or send out alarm information to the platform, etc.

The present disclosure is not limited to the specific form of the alarm assembly 17, and the specific form of the alarm assembly 17 may be selected as desired by one skilled in the art.

As described above, the control device 1 of the present disclosure may generate the first control signal according to the status information transmitted from the electric tool main body 20 to control the electric tool main body 20 to perform the corresponding operation, and in other embodiments, may directly receive the command signal to generate the second control signal to control the electric tool main body 20 to perform the corresponding operation.

The following description will exemplarily describe a possible embodiment in which the direct reception of the command signal generates the second control signal to control the power tool main body 20 to perform the corresponding operation.

The control device 1 provided by the present disclosure can receive a first instruction signal transmitted from the electric tool main body 20, and transmit a control signal to control the electric tool main body 20 to execute a corresponding operation according to the first instruction signal, and can also receive a second instruction signal transmitted from the control device 1 by a user, and transmit a control signal to control the electric tool main body 20 to execute a corresponding operation according to the second instruction signal.

The different sources from which the control device 1 receives the command signal will be described below.

Referring to fig. 8a, fig. 8a shows a flowchart of step S12 in an embodiment of the present disclosure.

In one possible embodiment, the step S12 of selecting the corresponding control program according to the category to control the operation of the at least one power tool main body 20 may include:

step S121, receiving a first command signal from the at least one electric tool main body 20 through the first signal terminal group 152;

and step S122, generating a second control signal according to the first command signal to control the at least one power tool main body 20 to perform a corresponding operation.

The power tool body 20 may include various operating components, such as a switch trigger, a shift speed control switch (a key or a knob), a lighting switch (which may include a brightness control knob, etc.), a forward/reverse rotation control switch, and the like.

Of course, the operation member on the power tool main body 20 may be in other forms, such as a keyboard, a touch panel, and the like, and the present disclosure does not limit the specific form of the operation member on the power tool main body 20 as long as the first command signal for use can be input.

The user may also issue the first command signal via various operating components on the power tool body 20 and may issue the second control signal after the first control assembly 16 receives the first command signal.

In a possible embodiment, as shown in fig. 3, the control device 1 may further include a signal input assembly 18 electrically connected to the first control assembly 16.

In one possible embodiment, the signal input assembly 18 may include a switch trigger, a shift speed switch (key or knob), a light switch (which may include a brightness adjustment knob or the like), a forward/reverse rotation adjustment switch, and the like.

Of course, the signal input component 18 may also be in other forms, such as a keyboard, a touch screen, etc., and the present disclosure does not limit the specific form of the signal input component 18 as long as the second instruction signal can be input.

Referring to fig. 8b, fig. 8b is a flowchart illustrating step S12 according to an embodiment of the present disclosure.

In one possible embodiment, the step S12 of selecting the corresponding control program according to the category to control the operation of the power tool main body 20 may include:

step S125, receiving a second instruction signal input by the user through the signal input component 18;

step S126, generating a third control signal according to the second instruction signal to control the at least one power tool main body 20 to perform a corresponding operation.

After the power tool body 20 is successfully coupled with the control device 1, the user can input a second instruction signal through the signal input component 18 on the control device 1.

In one possible embodiment, the corresponding operation may include a plurality of operations, and may include, for example, one of activation or deactivation of at least one of the power tool main body 20, forward or reverse rotation of the motor, motor speed adjustment, and illumination.

In a possible embodiment, in the case where the motor speed is regulated to slow braking, the first control assembly 16 is configured to:

the drive circuit 14 is periodically controlled to be turned on or off to realize the slow braking of the motor of the electric tool main body 20.

The driving circuit 14 may be composed of a plurality of transistors (power transistors), and the present disclosure does not limit the specific circuit of the driving circuit 14.

With continued reference to fig. 4, a schematic diagram of the control device shown in fig. 4 shows one possible implementation of the driving circuit 14.

As shown in fig. 4, the driving circuit 14 may include transistors Q1-Q6, each having a control terminal electrically connected to the first control component 16 (e.g., electrically connected to the motor driving chip) and capable of being turned on or off under the control of the first control component.

The present disclosure can realize the slow braking of the motor of the electric tool main body 20 by periodically controlling the on/off of the driving circuit 14.

In a possible embodiment, the signal input assembly 18 may include a rotation speed adjusting unit, and in the case that the electric tool body 20 coupled with the control device 1 does not need to perform motor rotation speed adjustment, the operations further include:

The "invalidation" may include: when the electric tool main body 20 receives the second instruction signal, the second instruction signal is ignored, and the rotation speed of the motor is kept unchanged.

Thus, the present disclosure can avoid that the signal caused by the misoperation cannot be sent under the condition that the electric tool main body 20 does not need to carry out the motor speed regulation, avoid interfering with the normal work of the electric tool main body 20, and can avoid the electric tool main body 20 from being damaged due to the misoperation.

In a possible embodiment, the first control assembly 1 may be further configured to:

The external device may be a server, a mobile device, a cloud device, a mobile hard disk, a usb disk, or the like, and the program to be updated is stored in the device.

In one example, the control apparatus 1 may include a USB interface, the control apparatus 1 may be connected to the external device through the USB interface in a USB manner, and after the control apparatus 1 detects that there is a device accessed through the USB, the content on the external device may be automatically read and the update may be checked, and if there is a program to be updated in the external device, the program to be updated may be automatically downloaded.

When updating, firstly, the USB is connected with the first control component 16, then the first control component 16 is powered on, the first control component reads a handshake signal of the USB, if the handshake is successful, a program is downloaded and updated, and the upgrade is completed and switched to the user mode.

In one example, the control apparatus 1 may be wirelessly connected to an external device, and when the control apparatus 1 is wirelessly connected to the external device, the update may be automatically checked.

The wireless mode may include various electromagnetic modes such as wifi, bluetooth, radio frequency, ZigBee, and the like.

Of course, in other embodiments, the control device 1 may also obtain the program to be updated in other manners, and the disclosure is not limited thereto.

While various possible embodiments of the control device have been described above, it should be understood that the above description is not exhaustive, and should not be construed as a limitation to the present disclosure, and a person skilled in the art may increase or decrease the composition of the first control component as needed, and the present disclosure is not limited thereto.

The present disclosure also provides a power tool body, which is described below as an example.

Referring to fig. 9, fig. 9 is a schematic view of a power tool body according to an embodiment of the present disclosure.

Referring to fig. 10, fig. 10 shows a block diagram of a power tool body according to an embodiment of the present disclosure.

Referring to fig. 11, fig. 11 is a flowchart illustrating the operation of the second control assembly in the power tool body according to an embodiment of the present disclosure.

As shown in fig. 9, 10, and 10, the power tool body 20 may include:

a tool interface 21 provided on the electric tool main body 20 for detachably interfacing with the device of the control device 1;

the second connection assembly 22 is disposed on the tool interface 21, and includes a second power terminal group 221 and a second signal terminal group 222, where the second power terminal group 221 is used for receiving the electric energy transmitted by the control device 1, and the second signal terminal group 222 is used for transmitting information with the control device 1;

the identification component 23 is arranged on the electric tool main body 20, connected to the second connection component 22, and used for recording identification information of the electric tool main body 20;

a second control assembly 24 provided on the power tool body 20 and configured to:

s21, reading the identification information recorded in the identification component 23;

s22, sending the identification information to the control device 1, so that the control device 1 determines the category of the electric tool main body 20 according to the identification information, and selects a corresponding control program to control the operation of the electric tool main body 20.

The electric tool main body 20 provided by the present disclosure can be detachably coupled to the control device 1, and after the control device 1 is coupled, the identification information recorded in the identification component is read, and the presentation information is sent to the control device 1, so that the control device 1 determines the category of the electric tool main body 20 according to the identification information, and selects the corresponding control program to control the operation of the electric tool main body 20.

Taking the dial switch as an example, for different electric tool bodies 20, different identification codes may be set in the dial switch as the identification information of the electric tool bodies 20, so as to distinguish among the plurality of electric tool bodies 20.

The specific type of the dial switch is not limited in the disclosure, the dial switch can be a 4-digit dial switch, and can also be a dial switch with other digits, and the dial switch can be selected by a person skilled in the art according to needs.

This openly adopts the identification component to record the identification information of electric tool main part, when electric tool main part and controlling means connect, makes controlling means can discern the electric tool main part fast, thereby improves work efficiency. Moreover, the identification component is realized by the dial switch, so that the cost is low, and the cost of the electric tool main body is reduced.

In one possible embodiment, the second control component 24 may be implemented by various control chips, for example, by using a general processing chip, including a single chip, a central processing unit, a field programmable gate array, a digital signal processor, etc.; or may be implemented by a dedicated control chip.

In one possible embodiment, the power tool main body 20 may implement functions of power on/off, power tool type identification, motor voltage and current detection, over-temperature detection, motor speed and direction detection, fault alarm, maintenance reminding, illumination detection, etc. through the second control component 24.

In one possible embodiment, the second signal terminal group 222 includes a second power terminal for communication between the power tool and the control device 1, and a second communication terminal for receiving power from the control device 1 to supply power to circuits other than the motor in the power tool main body 20.

A possible embodiment of the power tool body 20 will be described below.

Referring to fig. 12, fig. 12 shows a schematic view of a power tool body 20 according to an embodiment of the present disclosure.

As shown in fig. 12, the power tool body 20 may include a second connection assembly 22, a second control assembly 24, and a motor M.

As shown in fig. 12, in the second connection assembly 22 of the power tool body 20, each terminal may include a pole piece. The second signal terminal group 222 may include 3 pole pieces (VCC2, GND, TX/RX), but the power terminal VCC and the second communication terminal TX/RX may be combined in other embodiments.

It should be noted that the arrangement of the second signal terminal group 222 of the power tool main body 20 may be adapted to the arrangement of the first signal terminal group of the control device 1, and for a specific description, reference is made to the description of the control device 1, and details are not repeated.

Additional functions of the second control assembly 24 will be described in exemplary detail below.

Referring to fig. 13, fig. 13 is a flowchart illustrating the operation of the second control assembly in the power tool body according to an embodiment of the present disclosure. In one possible embodiment, the second control assembly 24 may be further configured to:

step S24, reading a status signal of the electric tool main body 20;

step S25, sending the status signal to the control device 1 by using the second signal terminal group 222, where the status signal includes one or more of a voltage signal of the motor, a current signal of the motor, a temperature signal of the motor, a rotation speed signal, a power-on signal, a power-off signal, and an illumination signal.

The second control unit 24 may cause the control device 1 to determine the state of the power tool body based on the state signal by reading the state signal of the power tool body and transmitting the state signal to the control device 1, and output a control signal based on the state of the power tool body to control the operation of the power tool body.

Referring to fig. 14, fig. 14 is a flowchart illustrating the operation of the second control assembly in the power tool body according to an embodiment of the present disclosure.

In one possible embodiment, the second control assembly 24 may be further configured to:

s27, generating a first command signal according to the action of the user;

s28, the first command signal is transmitted to the control device 1 by the second signal terminal group 222.

As described above, the power tool body 20 may include various operating components, such as a switch trigger, a shift speed control switch (a key or a knob), an illumination switch (which may include a brightness control knob, etc.), a forward/reverse rotation control switch, and the like. The user can operate the operation member on the electric power tool main body 20, generate a first command signal in accordance with the user's motion, and transmit the first command signal to the control device 1.

It should be noted that the specific contents of the status signal portion and the first command signal portion transmitted by the electric tool main body have been described in the section describing the control device, and are not described again here.

The present disclosure also provides a tool system.

Referring to fig. 15, fig. 15 shows a block diagram of a control system according to an embodiment of the present disclosure.

As shown in fig. 15, the system includes:

the control device 1;

at least two electric tool main bodies 20, wherein each electric tool main body 20 can be respectively matched and connected with the control device 1, and the identification information recorded by the identification components in each electric tool main body 20 is different from each other.

It should be noted that the identification information of each electric tool main body 20 is determined and distinguished by information recorded in the identification component, and for example, assuming that the identification component is a dial switch, the dial switch of each electric tool main body 20 may be set to different values to distinguish.

When one electric tool body is coupled with the control device, the control device can control the coupled electric tool, after the electric tool body 20 is used, the electric tool body 20 can be detached from the control device, and another electric tool body can be coupled with the control device, in which case the control device can work with the current electric tool.

Through the above system, the present disclosure can realize the control of a plurality of different electric tool main bodies 20, and compared with the related art in which a control part is provided in each electric tool main body 20, the present disclosure can control a plurality of electric tool main bodies 20 with one control device, so that the size of the electric tool main body 20 can be reduced, the cost of the electric tool main body 20 can be reduced, and the work efficiency can be improved due to the realization of the one-to-many control manner.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A control device selectively detachably coupled to at least one power tool body for driving a motor of the at least one power tool body, the device comprising:

the main body of the device is provided with a plurality of grooves,

2. The apparatus of claim 1, wherein the power supply assembly comprises:

3. The apparatus of claim 2, wherein the power supply assembly further comprises:

4. The apparatus of claim 2 or 3, wherein the first power branch comprises:

5. The apparatus of claim 3, wherein the second power branch comprises:

the energy storage assembly is used for storing electric energy;

6. The apparatus of claim 3, wherein the external power source is alternating current,

7. The apparatus of claim 1 wherein the first signal terminal set includes a first power terminal for powering circuitry of the at least one power tool body other than the motor from the power output by the power supply assembly, a first communication terminal for communicating information with the at least one power tool body.

8. The apparatus of claim 1, wherein the information received by the first set of signal terminals comprises:

identification information of the at least one power tool body;

9. The apparatus of claim 1, wherein the information received by the first set of signal terminals comprises:

10. The apparatus of claim 1, wherein the first control component is further configured to: