Electric tool

Abstract

The utility model provides an electric tool which comprises a main body, a connecting assembly, a main control module arranged on the main body and a user control module arranged on the connecting assembly, the user control module comprises a first control unit, and the main control module comprises a second control unit; the electric tool further comprises a wireless communication module, the wireless communication module comprises a first wireless communication unit and a second wireless communication unit, the first wireless communication unit is in electric signal connection with the first control unit, and the second wireless communication unit is in electric signal connection with the second control unit. The first wireless communication unit can at least establish a wireless communication link with the second wireless communication unit and / or external terminal equipment, and control signals are transmitted between the user control module and the main control module through the wireless communication link. According to the electric tool, the use of wire harnesses can be reduced, the cost of the wire harnesses is saved, the assembly difficulty is reduced, and the safety and reliability of use and the aesthetic property of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of power tool structure technology, and in particular to a power tool. Background Technology

[0002] Currently, the control module of a lawnmower with self-propelled function mainly consists of two parts: the main control module and the user control module (i.e., the control panel). The user control module is used for user operation. The user control module can communicate with the main control module to control the operation of the lawnmower's walking drive motor and mowing motor through the main control module, thereby realizing the lawnmower's self-propelled function and mowing function.

[0003] Currently, the main control module is generally located on the main body of the lawnmower, while the user control module is located on the connecting components of the lawnmower. The user control module and the main control module are connected by wires via a wiring harness to enable communication between the two and to supply power to the user control module. This wired connection method increases the cost and assembly difficulty of the equipment to some extent. At the same time, during the use of the equipment, as the connecting components fold and expand, the wiring harness is at risk of aging and breaking, affecting the safety and reliability of use. Moreover, the exposed wiring harness also affects the aesthetics of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a power tool in which the user control module and the main control module communicate wirelessly through a wireless communication module, thereby reducing the use of wiring harnesses, saving wiring harness costs, reducing assembly difficulty, and improving the safety, reliability, and aesthetics of the equipment.

[0005] This utility model provides a power tool, including a main body, a connecting component connected to the main body, a main control module disposed on the main body, and a user control module disposed on the connecting component. The user control module includes a first control unit, and the main control module includes a second control unit. The power tool also includes a wireless communication module, which includes a first wireless communication unit and a second wireless communication unit. The first wireless communication unit is electrically connected to the first control unit, and the second wireless communication unit is electrically connected to the second control unit. The first wireless communication unit is disposed on the connecting component, and the second wireless communication unit is disposed on the main body or the connecting component. The distance between the first wireless communication unit and the second wireless communication unit is greater than or equal to 0.1 meters and less than or equal to 5 meters. The first wireless communication unit is capable of establishing a wireless communication link with at least the second wireless communication unit and / or an external terminal device. The user control module and the main control module transmit control signals through the wireless communication link.

[0006] In one possible implementation, the first wireless communication unit includes a first Bluetooth module, the second wireless communication unit includes a second Bluetooth module, and the first Bluetooth module is at least capable of establishing a wireless communication link with the second Bluetooth module and / or the external terminal device.

[0007] In one possible implementation, the first wireless communication unit includes a first infrared transceiver unit and a third Bluetooth module, the second wireless communication unit includes a second infrared transceiver unit, the first infrared transceiver unit is capable of establishing a wireless communication link with the second infrared transceiver unit, and the third Bluetooth module is used to establish a wireless communication link with the external terminal device.

[0008] In one possible implementation, the connecting component is rotatably connected to the main body, and the connecting component has a folded state and an unfolded state when it rotates relative to the main body;

[0009] When the connecting component is in the deployed state, the angle between the connecting component and the main body is greater than 90° and less than 180°. The first infrared transceiver unit and the second infrared transceiver unit are both located on the plane of the connecting component, so that the first infrared transceiver unit can be aligned with the second infrared transceiver unit and establish a wireless communication link.

[0010] In one possible implementation, the first wireless communication unit includes a first radio frequency transceiver unit and a third Bluetooth module, the second wireless communication unit includes a second radio frequency transceiver unit, the first radio frequency transceiver unit is capable of establishing a wireless communication link with the second radio frequency transceiver unit, and the third Bluetooth module is used to establish a wireless communication link with the external terminal device.

[0011] In one possible implementation, the first wireless communication unit includes a first satellite flash module, the second wireless communication unit includes a second satellite flash module, and the first satellite flash module is at least capable of establishing a wireless communication link with the second satellite flash module and / or the external terminal device.

[0012] In one possible implementation, the first wireless communication unit is disposed on the user control module, and the second wireless communication unit is disposed on the main control module.

[0013] In one possible implementation, the connection component includes a lower connection and an upper connection. One end of the lower connection is connected to the main body, and the other end of the lower connection is retractably connected to one end of the upper connection. The user control module is installed on the end of the upper connection away from the lower connection, and the first wireless communication unit is disposed on the user control module. A retractable control component is provided at the connection between the lower connection and the upper connection. The retractable control component is used to control the relative retractable movement of the upper connection and the lower connection, and the second wireless communication unit is disposed on the retractable control component.

[0014] In one possible implementation, the second wireless communication unit and the second control unit are connected by a cable electrical signal connection, the cable being routed through the lower connection.

[0015] In one possible implementation, the user control module is detachably connected to the connection component.

[0016] In one feasible manner, the power tool is a lawnmower or a snowplow.

[0017] The power tool provided by this utility model, by setting a wireless communication module, enables the user control module and the main control module to communicate wirelessly through the wireless communication module, thereby reducing the use of wire harnesses, saving wire harness costs, reducing assembly difficulty, eliminating the risks inherent in wire harnesses, improving the safety and reliability of use, and enhancing the aesthetics of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a lawnmower in the prior art.

[0019] Figure 2 This is a three-dimensional structural diagram of the power tool in the embodiment of this utility model.

[0020] Figure 3 for Figure 2 A bottom view.

[0021] Figure 4 This is a schematic diagram of the signal transmission between the user control module and the main control module in an embodiment of this utility model.

[0022] Figure 5 This is a schematic diagram of signal transmission between the user control module and the main control module in another embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of signal transmission between the user control module and the main control module in another embodiment of the present invention.

[0024] Figure 7This is a schematic diagram of signal transmission between the user control module and the main control module in another embodiment of the present invention. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0026] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] Power tools include at least: chainsaws, lawnmowers, trimmers, edge trimmers, hedge trimmers, brush cutters, lawn combers, handheld power tools (electric drills, hammer sanders, etc.), portable power tools (bench grinders, etc.), and garden tools (lawnmowers, hair dryers, pressure washers, etc.). Different power tools have different sizes and uses.

[0028] To better illustrate the content protected by this utility model, a lawnmower is used as an example here. Figure 1 As shown, the main control module (not shown) of existing lawnmowers is generally located on the main body 1 of the lawnmower, while the user control module 4 is located on the connecting component 2. The two are connected by a relatively long wiring harness 40, which enables the main control module to supply power to the user control module 4 and facilitates communication between them (i.e., the wiring harness 40 includes both power and communication lines). Signal transmission between the two is wired. The user control module 4 transmits detected switch signals to the main control module, which then controls the motor based on the received switch signals and sends operating status information to the user control module 4. Because the user control module 4 and the main control module are connected by the wiring harness 40, this increases the cost and assembly difficulty of the equipment to some extent. Furthermore, during use, the wiring harness 40 is at risk of aging and breakage due to the folding and expansion of the connecting component 2, affecting safety and reliability. Additionally, the exposed wiring harness 40 also affects the aesthetics of the equipment.

[0029] To solve the above problems, such as Figures 2 to 4As shown, this utility model embodiment provides a power tool, including a main body 1 (i.e., chassis), a connecting component 2 connected to the main body 1, a main control module 3 disposed on the main body 1, and a user control module 4 (i.e., control panel) disposed on the connecting component 2. The user control module 4 includes a first control unit 41, and the main control module 3 includes a second control unit 31; in this embodiment, both the first control unit 41 and the second control unit 31 are MCUs (Microcontroller Units). The main body 1 is provided with a walking component 11 for supporting the main body 1, a walking drive motor 12 for driving the walking component 11 to rotate, a working part 13 for performing work, and a working drive motor 14 for driving the working part 13 to rotate. The walking component 11 specifically includes rollers, and the second control unit 31 is electrically connected to the walking drive motor 12 and the working drive motor 14 respectively. The main body 1 serves as the primary support structure for the power tool, assembling all parts into a single unit. The walking component 11 can rotate relative to the main body 1, allowing the main body 1 to move on the ground. The walking drive motor 12 is connected to the walking component 11 via a transmission mechanism (not shown), thereby driving the walking component 11 to rotate through the transmission mechanism. The working drive motor 14 is used to drive the working part 13 to perform tasks (such as mowing lawns, snowplowing, etc.). The connecting component 2 is used for the user to push the power tool. The user control module 4 is used for user operation, and the user control module 4 can communicate with the main control module 3, thereby controlling the operation of the walking drive motor 12 and the working drive motor 14 through the main control module 3 based on the user's operation.

[0030] Specifically, the connecting component 2 is rotatably connected to the main body 1, and the connecting component 2 is retractable, thus giving the connecting component 2 a folding and retractable storage function. When the connecting component 2 rotates relative to the main body 1, the connecting component 2 has a folded state (not shown in the figure) and an unfolded state (i.e., as shown in the figure). Figure 2 (As shown in the diagram) and can switch between two states. When the power tool is in working state, the connecting component 2 rotates backward relative to the main body 1 and is in an unfolded state. At this time, the connecting component 2 is located behind the main body 1, and the angle between the connecting component 2 and the main body 1 is greater than 90° and less than 180° (that is, the angle between the connecting component 2 and the horizontal direction is greater than 90° and less than 180°). At this time, the user can push the power tool to move by the connecting component 2, and at the same time, the user can control the operation of the power tool by operating the main control module 4. When the power tool is not in working state, the connecting component 2 rotates forward relative to the main body 1 and is in a folded state. At this time, the connecting component 2 is close to the main body 1, thereby saving the space occupied by the equipment and making it easy to store.

[0031] The power tool also includes a wireless communication module 5, which includes a first wireless communication unit 51 and a second wireless communication unit 52. The first wireless communication unit 51 is electrically connected to the first control unit 41, and the second wireless communication unit 52 is electrically connected to the second control unit 31. The first wireless communication unit 51 is disposed on the connecting component 2, and the second wireless communication unit 52 is disposed on the main body 1 or the connecting component 2. The distance between the first wireless communication unit 51 and the second wireless communication unit 52 is greater than or equal to 0.1 meters and less than or equal to 5 meters (or greater than or equal to 0.1 meters and less than or equal to 2 meters). The distance between them depends at least on the PCB layout of the circuit hardware or the length of the connecting component 2 or the communication distance between the communication units, for example: 0.15 meters, or 0.5 meters, or 2 meters, etc. The first wireless communication unit 51 is at least able to establish a wireless communication link with the second wireless communication unit 52 and / or the external terminal device 6 (i.e., the first wireless communication unit 51 is at least able to communicate wirelessly with the second wireless communication unit 52 and / or the external terminal device 6), so that the first control unit 41 and the second control unit 31 can communicate wirelessly through the wireless communication module 5, thereby enabling the user control module 4 and the main control module 3 to transmit control signals through the wireless communication link (i.e., the user control module 4 and the main control module 3 can communicate wirelessly through the wireless communication module 5).

[0032] The external terminal device 6 can be a user's mobile terminal device (such as a mobile phone, computer, etc.), remote control, etc. By setting the first wireless communication unit 51 to communicate wirelessly with the external terminal device 6, the user can control the operation of the power tool through the external terminal device 6 (such as through a mobile APP).

[0033] This power tool uses a wireless communication module 5, through which the user control module 4 and the main control module 3 communicate wirelessly. This reduces the use of wiring harnesses, saves wiring harness costs, reduces assembly difficulty, eliminates the risks inherent in wiring harnesses, and improves the safety, reliability, and aesthetics of the equipment.

[0034] like Figure 4As shown, in one implementation, the wireless communication module 5 includes a Bluetooth communication module, the first wireless communication unit 51 includes a first Bluetooth module, and the second wireless communication unit 52 includes a second Bluetooth module. The first Bluetooth module is capable of establishing a wireless communication link with at least the second Bluetooth module and / or the external terminal device 6 (i.e., the first Bluetooth module is capable of Bluetooth wireless communication with at least the second Bluetooth module and / or the external terminal device 6). Bluetooth technology, as a low-power, low-cost, short-range wireless communication technology, allows two devices to connect directly and exchange data without network infrastructure. The maximum transmission distance of Bluetooth signals is 10 cm to 10 meters, which can be increased to 100 meters by increasing the transmission power. The distance between the user control module 4 and the main control module 3 is about 2 meters, achieving good transmission performance within the optimal Bluetooth signal transmission range. Furthermore, the Bluetooth module has no specific limitations on installation angle and position; therefore, this solution does not require specific structural design for signal transmission and reception, saving on R&D and assembly costs. For details on the specific device structure and working principle of Bluetooth communication technology, please refer to existing technologies, which will not be elaborated here. In this embodiment, the first Bluetooth module includes a first sub-Bluetooth module and a second sub-Bluetooth module; the first sub-Bluetooth module establishes a wireless communication link with the second Bluetooth module, and the second sub-Bluetooth module is used to establish a wireless communication link with the external terminal device 6.

[0035] like Figure 5 As shown, in another embodiment, the wireless communication module 5 includes an infrared communication module. The first wireless communication unit 51 includes a first infrared transceiver unit, and the second wireless communication unit 52 includes a second infrared transceiver unit. The first infrared transceiver unit can establish a wireless communication link with the second infrared transceiver unit (i.e., the first infrared transceiver unit can perform infrared wireless communication with the second infrared transceiver unit). The first infrared transceiver unit includes a first infrared transmitting unit and a first infrared receiving unit, and the second infrared transceiver unit includes a second infrared transmitting unit and a second infrared receiving unit. The first infrared receiving unit can receive infrared signals emitted by the second infrared transmitting unit, and the second infrared receiving unit can receive infrared signals emitted by the first infrared transmitting unit. The infrared transmitting unit mainly includes devices such as an infrared emitting tube for emitting infrared rays, and the infrared receiving unit mainly includes devices such as an infrared receiving tube for receiving infrared rays. The first wireless communication unit 51 also includes a third Bluetooth module, which is used to establish a wireless communication link with the external terminal device 6.

[0036] Since the signal transmission medium for infrared communication is near-infrared light, the structure needs to consider the transmission of infrared light. To ensure smooth wireless communication between the first and second infrared transceiver units during operation, when the connecting component 2 is in the extended state, both the first and second infrared transceiver units are positioned on the plane of the connecting component 2. This allows them to align with each other, enabling the first and second infrared transceiver units to establish a wireless communication link. Specifically, the first wireless communication unit 51 and the second wireless communication unit 52 can be positioned on the user control module 4, and the second wireless communication unit 52 can be positioned on the telescopic control component 23. This ensures that the first infrared transceiver unit is always aligned with the second infrared transceiver unit (details will be provided later), thus guaranteeing smooth transmission of infrared signals. For specific device structures and working principles of infrared communication technology, please refer to existing technologies; details are not elaborated here.

[0037] like Figure 6 As shown, in another implementation, the wireless communication module 5 includes a radio frequency (RF) communication module. The first wireless communication unit 51 includes a first RF transceiver unit, and the second wireless communication unit 52 includes a second RF transceiver unit. The first RF transceiver unit can establish a wireless communication link with the second RF transceiver unit (i.e., the first RF transceiver unit can perform RF wireless communication with the second RF transceiver unit). The first wireless communication unit 51 also includes a third Bluetooth module, which is used to establish a wireless communication link with the external terminal device 6. Radio frequency (RF) is short for radio frequency current, which is a type of high-frequency alternating electromagnetic wave. RF technology is a technology for signal transmission and processing within the radio wave frequency range. Similar to Bluetooth communication, RF technology is a low-power, low-cost, short-range wireless communication technology with wide applications in consumer electronics. Its working principle is to modulate the information source (analog or digital signal) with a high-frequency current (amplitude modulation or frequency modulation) to form an RF signal, which is then transmitted into the air through an antenna. After receiving the RF signal at a long distance, it is demodulated to restore the electrical information source. RF transceiver units generally include transmitter circuits, receiver circuits, and antennas. Since radio frequency (RF) signals are radiated into space through an antenna, there are no specific restrictions on the installation angle of the RF transceiver unit, further reducing assembly difficulty. For details on the specific device structure and working principle of RF communication technology, please refer to existing technologies; they will not be elaborated here.

[0038] like Figure 7As shown, in another implementation, the wireless communication module 5 includes a star-flash communication module, the first wireless communication unit 51 includes a first star-flash module, and the second wireless communication unit 52 includes a second star-flash module. The first star-flash module is capable of establishing a wireless communication link with at least the second star-flash module and / or the external terminal device 6 (i.e., the first star-flash module is capable of performing star-flash wireless communication with at least the second star-flash module and / or the external terminal device 6). By setting the star-flash communication module, two communication domains are formed between the main control module 3, the user control module 4, and the external terminal device 6. The main control module 3 and the user control module 4 form the first communication domain, and the user control module 4 and the external terminal device 6 form the second communication domain. That is, the first star-flash module can handle both communication within the device and communication outside the device. Before the advent of StarSpeed ​​technology, the main solutions for short-range wireless communication were Bluetooth and Wi-Fi. However, these two standards were separate: Bluetooth focused on low power consumption, while Wi-Fi prioritized high efficiency. Each had its strengths but was incompatible. StarSpeed ​​technology, as a new generation of short-range wireless communication technology, broke down the technical barriers between Bluetooth and Wi-Fi, acting as a "perfect combination" of the two, integrating their advantages and significantly improving power consumption, transmission speed, stability, and coverage. Furthermore, StarSpeed ​​modules have no specific restrictions on installation angle, further reducing assembly difficulty. For details on the specific device structure and working principle of StarSpeed ​​communication technology, please refer to existing technologies; they will not be elaborated upon here.

[0039] like Figure 2 and Figure 4 As shown, in one implementation, the user control module 4 also includes interactive controls, including a walking motor switch 43 and a working motor switch 44, both of which are electrically connected to the first control unit 41. The walking motor switch 43 is operated by the user to control the operation of the walking drive motor 12 (the walking motor switch 43 can control the start / stop and working gear of the walking drive motor 12, etc.); the working motor switch 44 is operated by the user to control the operation of the working drive motor 14 (the working motor switch 44 can control the start / stop and working gear of the working drive motor 14, etc.). The main control module 3 also includes a first control circuit 32 and a second control circuit 33 (both the first control circuit 32 and the second control circuit 33 include various electronic components, such as resistors, inductors, and switching elements). The second control unit 31 is electrically connected to the walking drive motor 12 through the first control circuit 32, and the second control unit 31 is electrically connected to the working drive motor 14 through the second control circuit 33. Of course, the interactive controls also include other control elements, which will not be described in detail here.

[0040] like Figure 2 and Figure 4As shown, in one embodiment, the power tool also includes a power module 15 (i.e., a battery pack), which supplies power to the drive motor 12, the work drive motor 14, the main control module 3, and other components. The power module 15 is electrically connected to the second control unit 31, enabling the second control unit 31 to acquire the status information of the power module 15 (e.g., battery level, operating temperature). The power module 15 is mounted on the main body 1 and is detachably connected to the main body 1. The main control module 3 is generally located below the power module 15.

[0041] like Figure 2 and Figure 4 As shown, in one embodiment, the connecting component 2 includes a lower connection 21 and an upper connection 22 arranged in parallel, with the lower connection 21 and upper connection 22 located on the left and right sides of the main body 1, respectively. One end of the lower connection 21 is connected to the main body 1 (rotatably connected), and the other end of the lower connection 21 is retractably connected to one end of the upper connection 22. Specifically, both the lower connection 21 and the upper connection 22 are hollow tubular structures, with the upper connection 22 fitted inside the lower connection 21, and the upper connection 22 can be retracted and stored inside the lower connection 21. The user control module 4 is installed at the end of the upper connection 22 away from the lower connection 21, and the left and right ends of the user control module 4 are connected to the upper connections 22 on the left and right sides, respectively. The connecting component 2 also includes a handle 24, which is connected to the end of the upper connection 22 away from the lower connection 21. The handle 24 is used for the user to hold and push the power tool. A telescopic control component 23 is provided at the connection between the lower connection 21 and the upper connection 22. The left and right ends of the telescopic control component 23 are respectively connected to the lower connection 21 on the left and right sides. The telescopic control component 23 is used to control the relative telescopic movement of the upper connection 22 and the lower connection 21. That is, the telescopic control component 23 can lock the upper connection 22 and the lower connection 21 so that the connection component 2 remains in the extended or retracted state.

[0042] The telescopic control component 23 includes a telescopic detection switch 231, which is electrically connected to the first control unit 41. The telescopic detection switch 231 is used to detect the telescopic state of the connecting component 2. When the connecting component 2 is in the retracted state or in a state between extension and retraction, the power tool cannot move or work (i.e., neither the walking drive motor 12 nor the working drive motor 14 will operate). The power tool can only move and work when the connecting component 2 is in the extended state to ensure safety.

[0043] A folding detection switch 16 is provided at the connection between the lower connector 21 and the main body 1. The folding detection switch 16 is electrically connected to the second control unit 31 and is used to detect the folding state of the connecting component 2. When the connecting component 2 is in the folded state (at which time the connecting component 2 is close to the main body) or in a state between folding and unfolding, the power tool cannot move or work. When the connecting component 2 is in the unfolded state (i.e., Figure 2 The power tool can only move and work in the state shown (as indicated) to ensure safety. For details regarding the specific structure and working principle of the connecting component 2, the telescopic control component 23, the telescopic detection switch 231, and the folding detection switch 16, please refer to the applicant's previous patent applications (e.g., CN113875399B, CN114365616B, etc.), which will not be elaborated here.

[0044] like Figure 2 and Figure 4 As shown, in one embodiment, the first wireless communication unit 51 is disposed on the connecting component 2. Specifically, the first wireless communication unit 51 is disposed on the user control module 4 (of course, the first wireless communication unit 51 can also be directly disposed on the body of the connecting component 2 or on other components of the connecting component 2). The second wireless communication unit 52 is disposed on the main body 1. Specifically, the second wireless communication unit 52 is disposed on the main control module 3 (of course, the second wireless communication unit 52 can also be directly disposed on the body of the main body 1 or on other components of the main body 1). For example, the user control module 4 also includes a first circuit board (not shown), on which both the first control unit 41 and the first wireless communication unit 51 are disposed; the main control module 3 also includes a second circuit board (not shown), on which both the second control unit 31 and the second wireless communication unit 52 are disposed. This setup is generally suitable for scenarios where the wireless communication module 5 uses a Bluetooth communication module, RF communication module, or Star Flash communication module, and there are no specific requirements for the installation location. (When the infrared communication module uses this setup, the infrared transceiver units need to be aligned to ensure smooth transmission of infrared signals. However, since the connecting component 2 can extend and fold relative to the main body 1, the angle between the user control module 4 and the main control module 3 will change during the extension and folding process, which may lead to the inability of the first infrared transceiver unit and the second infrared transceiver unit to perform normal infrared communication.)

[0045] In another implementation, the second wireless communication unit 52 is disposed on the connecting component 2. Specifically, the second wireless communication unit 52 can be disposed on the telescopic control component 23. Since the angle between the user control module 4 and the telescopic control component 23 does not change during the telescopic or folding process of the connecting component 2 (the two are always in a parallel state), disposing the first wireless communication unit 51 on the user control module 4 and the second wireless communication unit 52 on the telescopic control component 23 ensures that the first wireless communication unit 51 and the second wireless communication unit 52 are always aligned, thereby maintaining good communication between them. Since the second wireless communication unit 52 is not directly disposed on the main body 1, the second wireless communication unit 52 and the second control unit 31 need to be electrically connected via a cable (not shown). In this case, the cable can be routed through the lower connecting 21, that is, one end of the cable is electrically connected to the second wireless communication unit 52, and the other end of the cable passes through the lower connecting 21 and extends into the main body 1, and finally is electrically connected to the second control unit 31. Although this method requires additional cable, it shortens the cable length, and the cable adopts a hidden design, which improves the aesthetics of the device. This configuration is generally used when the wireless communication module 5 uses an infrared communication module. Of course, this configuration can also be used when the wireless communication module 5 uses a Bluetooth communication module, an RF communication module, or a star-flash communication module.

[0046] In one implementation, the user control module 4 is detachably connected to the connection component 2. When the power tool is working, the user can detach the user control module 4 from the connection component 2 to remotely control the operation of the power tool through the user control module 4.

[0047] like Figure 2 and Figure 3 As shown, in one embodiment, the power tool is a lawnmower. The working component 13 includes a mowing blade, which is located at the bottom of the main body 1. The drive motor 14 drives the mowing blade to rotate for mowing. A grass collection box (not labeled) is located at the rear of the main body 1 to collect the grass cut by the mowing blade. Of course, in other embodiments, the power tool can also be a snowplow, etc., in which case the working component 13 can be replaced with a snowplow component, etc.

[0048] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A power tool, comprising a body, a connection assembly connected to the body, a main control module disposed on the body, and a user control module disposed on the connection assembly, wherein the user control module includes a first control unit, and the main control module includes a second control unit; characterized in that, The power tool further includes a wireless communication module, which includes a first wireless communication unit and a second wireless communication unit. The first wireless communication unit is electrically connected to the first control unit, and the second wireless communication unit is electrically connected to the second control unit. The first wireless communication unit is disposed on the connecting component, and the second wireless communication unit is disposed on the main body or the connecting component. The distance between the first wireless communication unit and the second wireless communication unit is greater than or equal to 0.1 meters and less than or equal to 5 meters; The first wireless communication unit is at least able to establish a wireless communication link with the second wireless communication unit and / or an external terminal device, and the user control module and the main control module transmit control signals through the wireless communication link.

2. The power tool as described in claim 1, characterized in that, The first wireless communication unit includes a first Bluetooth module, and the second wireless communication unit includes a second Bluetooth module. The first Bluetooth module is at least capable of establishing a wireless communication link with the second Bluetooth module and / or the external terminal device.

3. The power tool as described in claim 1, characterized in that, The first wireless communication unit includes a first infrared transceiver unit and a third Bluetooth module, and the second wireless communication unit includes a second infrared transceiver unit. The first infrared transceiver unit is capable of establishing a wireless communication link with the second infrared transceiver unit, and the third Bluetooth module is used to establish a wireless communication link with the external terminal device.

4. The power tool as described in claim 3, characterized in that, The connecting component is rotatably connected to the main body, and the connecting component has a folded state and an unfolded state when it rotates relative to the main body; When the connecting component is in the deployed state, the angle between the connecting component and the main body is greater than 90° and less than 180°. The first infrared transceiver unit and the second infrared transceiver unit are both located on the plane of the connecting component, so that the first infrared transceiver unit can be aligned with the second infrared transceiver unit and establish a wireless communication link.

5. The power tool as described in claim 1, characterized in that, The first wireless communication unit includes a first radio frequency transceiver unit and a third Bluetooth module, the second wireless communication unit includes a second radio frequency transceiver unit, the first radio frequency transceiver unit is capable of establishing a wireless communication link with the second radio frequency transceiver unit, and the third Bluetooth module is used to establish a wireless communication link with the external terminal device.

6. The power tool as claimed in claim 1, characterized in that, The first wireless communication unit includes a first star flash module, and the second wireless communication unit includes a second star flash module. The first star flash module is at least capable of establishing a wireless communication link with the second star flash module and / or the external terminal device.

7. The power tool as claimed in claim 1, characterized in that, The first wireless communication unit is disposed on the user control module, and the second wireless communication unit is disposed on the main control module.

8. The power tool as claimed in claim 1, characterized in that, The connecting component includes a lower connection and an upper connection. One end of the lower connection is connected to the main body, and the other end of the lower connection is retractably connected to one end of the upper connection. The user control module is installed on the end of the upper connection away from the lower connection, and the first wireless communication unit is disposed on the user control module. A telescopic control component is provided at the connection between the lower connection and the upper connection. The telescopic control component is used to control the relative telescopic movement of the upper connection and the lower connection, and the second wireless communication unit is disposed on the telescopic control component.

9. The power tool as claimed in claim 8, characterized in that, The second wireless communication unit and the second control unit are connected by a cable for electrical signal transmission, and the cable runs through the lower connection.

10. The power tool as claimed in claim 1, characterized in that, The user control module is detachably connected to the connection component.

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