CN220445227U - Chain saw and electric tool - Google Patents

Abstract

The application provides a chain saw and electric tool, this chain saw includes: a housing formed with or connected to a handle for a user to hold; one end of the guide plate is supported by the shell and is used for supporting and guiding the chain; a power supply detachably connected to the housing to supply power to the chain saw; a display device mounted to the housing for displaying an operating state of the chain saw; the internet of things module is configured to be at least capable of being in communication connection with external equipment so as to receive or send information related to the chain saw; the display device at least comprises a display plane; the projection of the display plane on the first plane is at least partially overlapped with the projection of the internet of things module on the first plane, and the first plane is basically parallel to the display plane. By adopting the technical scheme, the chain saw with compact hardware layout and reasonable wiring of the Internet of things module can be provided.

Description

Chain saw and electric tool

Technical Field

The application relates to a chain saw and electric tool field.

Background

A chain saw in the related art generally only has structures such as a battery, a motor and a simple mechanical switch, and can only manually control start and stop, rotation speed and the like of the chain saw by a user, so that the user cannot master the working state information of the chain saw at any time, and the intelligent degree is low. At present, there is a chain saw that is provided with thing networking module, thing networking module sets up on the main control board in the chain saw, and for user's convenient to use for the operating button etc. that triggers thing networking module operation control instruction still sets up near the handle of chain saw, and both distances are far away, and the wiring is unreasonable, thereby leads to the integrated level of chain saw low, is unfavorable for reducing the volume of chain saw.

This section provides background information related to the present application, which is not necessarily prior art.

Disclosure of Invention

It is an object of the present application to solve or at least mitigate some or all of the above problems. To this end, an object of the present application is to provide a chainsaw with compact hardware layout and reasonable wiring, which has a high integration level and is advantageous for reducing the volume of the chainsaw.

In order to achieve the above object, the present application adopts the following technical scheme:

in some embodiments, the present application provides a chain saw comprising: a housing formed with or connected to a handle for a user to hold; one end of the guide plate is supported by the shell and is used for supporting and guiding the chain; a power supply detachably connected to the housing to supply power to the chain saw; a display device mounted to the housing for displaying an operating state of the chain saw; further comprises: the internet of things module is configured to be at least capable of being in communication connection with external equipment so as to receive or send information related to the chain saw; the display device at least comprises a display plane; the projection of the display plane on the first plane is at least partially overlapped with the projection of the internet of things module on the first plane, and the first plane is basically parallel to the display plane.

In some embodiments, the present application also provides a chain saw comprising: a housing formed with or connected to a handle for a user to hold; one end of the guide plate is supported by the shell and is used for supporting and guiding the chain; a power supply detachably connected to the housing to supply power to the chain saw; a display device mounted to the housing for displaying an operating state of the chain saw; further comprises: the internet of things module is configured to be at least capable of being in communication connection with external equipment so as to receive or send information related to the chain saw; the display device at least comprises a display interface; at least part of the internet of things module is positioned in a preset spherical area taking the display center of the display interface as the center of a circle.

In some embodiments, the present application also provides a power tool comprising: a housing; a power supply device detachably connected to the housing to supply power to the power tool; a motor powered by the power supply device; an output section driven by the motor to perform a cutting function of the electric tool; a display device mounted to the housing for displaying an operating state of the power tool; the internet of things module is configured to be at least capable of being in communication connection with external equipment so as to receive or send information related to the electric tool; the display device at least comprises a display interface; at least part of the internet of things module is positioned in a preset spherical area taking the display center of the display interface as the center of a circle; the radius of the preset spherical area is more than or equal to 0mm and less than or equal to 50mm.

The beneficial point of the application lies in: through the thing networking module that makes the chain saw is configured to be at least can with external equipment communication connection to receiving or send the information that is correlated with the chain saw, and make display device include at least one display plane, the projection of display plane on first plane overlaps with the projection of thing networking module on first plane at least partially, the operating button that is used for triggering thing networking module operation control command can set up near the operating button around the display device, make the hardware overall arrangement compacter, improved the integration level of chain saw, be favorable to reducing the volume of chain saw.

Drawings

FIG. 1 is a side view of a chain saw provided in an embodiment of the present application;

FIG. 2 is a top view of a chain saw according to an embodiment of the present application;

fig. 3 is a schematic diagram of a display interface of a display device according to an embodiment of the present application;

FIG. 4 is a schematic diagram of an electrical control scheme provided in an embodiment of the present application;

FIG. 5 is a schematic view of a structure of a guide plate pressing cover plate under a view angle according to an embodiment of the present application;

FIG. 6 is a schematic view of another view angle of a guide plate pressing cover plate according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a nut anti-lost structure under a view angle according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a nut anti-lost structure under another view angle according to an embodiment of the present application.

Detailed Description

Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings.

In this application, the terms "comprises," "comprising," "has," "having," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the present application, the term "and/or" is an association relationship describing an association object, meaning that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" in this application generally indicates that the front-rear association object is an "and/or" relationship.

The terms "connected," "coupled," and "mounted" are used herein to describe either a direct connection, a coupling, or an installation, or an indirect connection, a coupling, or an installation. By way of example, two parts or components are connected together without intermediate members, and by indirect connection is meant that the two parts or components are respectively connected to at least one intermediate member, through which the two parts or components are connected. Further, "connected" and "coupled" are not restricted to physical or mechanical connections or couplings, and may include electrical connections or couplings.

In this application, one of ordinary skill in the art will understand that relative terms (e.g., "about," "approximately," "substantially," etc.) used in connection with quantities or conditions are intended to include the values and have the meanings indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a particular value, the tolerance associated with a particular value resulting from manufacture, assembly, use, and the like. Such terms should also be considered to disclose a range defined by the absolute values of the two endpoints. Relative terms may refer to the addition or subtraction of a percentage (e.g., 1%,5%,10% or more) of the indicated value. Numerical values, not employing relative terms, should also be construed as having specific values of tolerance. Further, "substantially" when referring to relative angular positional relationships (e.g., substantially parallel, substantially perpendicular) may refer to adding or subtracting a degree (e.g., 1 degree, 5 degrees, 10 degrees, or more) from the indicated angle.

In this application, one of ordinary skill in the art will understand that a function performed by a component may be performed by one component, multiple components, a part, or multiple parts. Also, the functions performed by the elements may be performed by one element, by an assembly, or by a combination of elements.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", and the like are described in terms of orientation and positional relationship shown in the drawings, and should not be construed as limiting the embodiments of the present application. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements. It should also be understood that the terms upper, lower, left, right, front, back, etc. are not only intended to represent positive orientations, but also to be construed as lateral orientations. For example, the lower side may include a right lower side, a left lower side, a right lower side, a front lower side, a rear lower side, and the like.

In this application, the terms "controller", "processor", "central processing unit", "CPU", "MCU" are interchangeable. Where a unit "controller", "processor", "central processing unit", "CPU", or "MCU" is used to perform a particular function, such function may be performed by a single unit or by a plurality of units unless otherwise indicated.

In the present application, the terms "means," "module" or "unit" may be implemented in hardware or software for the purpose of realizing a specific function.

In this application, the terms "calculate," "determine," "control," "determine," "identify," and the like refer to the operation and process of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

The present application is described in detail below with reference to the attached drawings and specific embodiments.

The electric tool may be a hand-held electric tool, a walk-type electric tool, a pole-type electric tool, a garden-type electric tool such as a grass trimmer or a pruning machine, and the type of the electric tool is not limited in this application. It is within the scope of the present application that the power tool can employ the following disclosed technical solutions.

Fig. 1 is a side view of a chain saw according to an embodiment of the present application, fig. 2 is a top view of a chain saw according to an embodiment of the present application, and fig. 1 and 2 show a specific embodiment of the present application as a power tool, such as a chain saw. In fact, the present application is applicable to hand-held power tools such as electric drills, electric wrenches, electric screwdrivers, electric hammer drills, electric circular saws, sanders, bench tools such as table saws, and outdoor tools such as lawnmowers, snowsweepers, grass cutters, electric shears, pruners, chain saws, pole saws. It will be apparent that the following examples are some, but not all, of the examples of this application.

Referring to fig. 1 and 2, the chain saw 100 includes a tool body 1 and a power supply device 2, the power supply device 2 being configured to supply power to the tool body 1. The tool body 1 includes a working member, a body portion, and a motor; the working parts comprise a guide plate 11 and a chain 12; the main body includes a housing, and a working member can be mounted to a front end of the main body. One end of the guide plate 11 is supported by the housing 13, and the other end extends out of the housing 13 in the longitudinal direction of the housing 13, and the guide plate 11 supports and guides the chain 12. The motor is disposed in the accommodation space formed by the housing 13. The power supply device 2 supplies power to the motor to rotate the motor-driven chain 12 under the guide of the guide plate 11 to perform the cutting function. The power supply device 2 includes at least one battery pack 21, the battery pack 21 being detachably connected to the housing 13, facilitating the user to replace the battery pack 21, extending the life of the chain saw 100.

In some embodiments, the housing 13 is formed with or connected to a handle 14 extending in the front-rear direction, the handle 14 being formed with a grip 141 for a user to grip. The handle 14 is located behind the battery pack 21 in the front-rear direction, facilitates gripping of the handle 14 by a user, and is ergonomically designed. The front end of the handle 14 is provided with a rear handle operation member 35 for user manipulation. The rear handle operating member 35 is used for controlling the start and stop of the chain saw 100, and the rear handle operating member 35 is disposed at a position reasonably convenient for a user to operate, thereby improving the comfort level of the user operation.

In some embodiments, the chain saw 100 further includes a display device 34. The display 34 is located at least partially above the battery pack 21. The display device 34 is mounted to the housing 13, the display device 34 having at least one display interface for displaying the current status of the chain saw 100, the space on the housing 13 being fully utilized, and the battery pack 21 not obscuring the display device 34. Specifically, the display device 34 is disposed above the battery pack 21, and the projection of the display device 34 on the bottom plane perpendicular to the plane of the guide plate 11 is at least partially located within the projection of the battery pack 21 on the bottom plane, so as to reduce the size of the chainsaw 100 in the front-rear direction, and improve the structural compactness of the chainsaw 100. The display device 34 is disposed in front of the handle 14 in the front-rear direction, and when the user holds the handle 14, the display device 34 is disposed face-to-face with the user, so that the user can view the display interface of the display device 34.

Fig. 3 is a schematic diagram of a display interface of a display device according to an embodiment of the present application, and referring to fig. 3, the display interface of the display device 34 is provided with a brake status display area 341, a headlamp working status display area 342, a bluetooth connection status display area 343, a low oil alarm display area 344, a cutting mode display area 345, an oil yield display area 346, a cutting load display area 347, an over-temperature icon display area 348, and an electric quantity display area 349. The cut pattern display area 345 has a three-stage display, in which one of the first stage is lighted corresponding to one of the lattices, the second stage is lighted corresponding to two of the lattices, and the third stage is lighted corresponding to three of the lattices. The cutting load display area 347 is provided with five grids, and the number of the grids may be greater than five or less than five, which is not particularly limited herein. The number of grids illuminated varies with the magnitude of the motor current as the chain saw 100 cuts.

In an alternative embodiment, the display interface further comprises a key indication area, and the key indication area is used for indicating the working state of the operation button, so that a user obtains the working state of the operation button through the display interface in real time, and the user can master the working state of the chain saw in real time.

The chainsaw 100 further includes a plurality of operating elements for operation by a user, the operating elements including at least one operating button for triggering an operation control command, the operating button being disposed in a characteristic region of the handle 14, the characteristic region being a region operable by a hand held by the user on the handle 14 for operation by the user. The operating element can be operated at least to adjust the oil output of the chainsaw 100 or the illumination state of the chainsaw 100. The operation elements include a first operation button 331 and a second operation button 332. The first operation button 331 is used to control the illumination state of the chainsaw 100, i.e., turn on and off the illumination module or adjust the illumination intensity of the illumination module. The second operation button 332 is used to adjust the oil output of the chain saw 100. In actual operation, the first operation button 331 is pressed a short time, the illumination function of the chainsaw 100 is started, the brightness is at the maximum, and the icon of the headlamp operating state display area 342 is lighted. The first operation button 331 is pressed again, the illumination brightness is switched, and the icon display of the headlamp operating state display area 342 is changed accordingly. The first operation button 331 is pressed again, the illumination is turned off, and the three-gear cycle is switched.

The chainsaw 100 also has an internet of things module 36 configured to be communicatively connectable with at least an external device to receive or transmit information related to the chainsaw so that a user can control or learn the status of the tool through the internet of things module 36.

Specifically, the first operation button 331 further has a bluetooth connection function, and long-pressing the first operation button 331 starts a bluetooth pairing function, and in the pairing process, a bluetooth icon in the bluetooth connection status display area 343 flashes, and after pairing is successful, the bluetooth icon is always bright. When the bluetooth function is turned off, the bluetooth icon is not lit. When the bluetooth icon is normally on, the external device can be communicatively connected to the tool body 1 or the battery pack 21 through bluetooth. In some embodiments, the user can perform maintenance and upgrade of the program of the tool body 1 by operating the external device. In some embodiments, the communication manner between the external device and the tool body 1 and the battery pack 21 is bidirectional communication; in some embodiments, the relevant data such as the relevant operating status of the battery pack 21 and the tool body 1 and alarm information can be uploaded to an external device via bluetooth for reference by the user. In some embodiments, a user can control an operating mode such as a gear position of the chainsaw 100 through an external device.

In an alternative embodiment, display device 34 includes at least one display plane 304, and the projection of display plane 304 on first plane 101 at least partially overlaps the projection of internet of things module 36 on first plane 101. Wherein the first plane 101 is substantially parallel to the display plane 304, and the display plane 304 may be a reference plane of the display device 34; in another alternative embodiment, the display interface has a display center P, and at least part of the internet of things module 36 is located in a preset spherical area centered on the display center P of the display interface; the radius of the preset spherical area is more than or equal to 0mm and less than or equal to 50mm.

The external device 200 may be, but not limited to, an electronic device with a communication function, such as a mobile phone, a tablet computer, a computer, etc. The information on the chain saw may be, but is not limited to, information that needs to be acquired by a user such as an operating state of the chain saw, e.g., a rotational speed of the chain, a state of the power supply device 2, e.g., a remaining power of the power supply device 2, an estimated use time, and the like. It should be noted that, the projection of the display plane 304 on the first plane and the projection of the internet of things module 36 on the first plane may be all overlapped or may be partially overlapped, so that the operation button for triggering the operation control instruction of the internet of things module 36 may be disposed near the operation button around the display device 34, so that the hardware layout is more compact, the integration level of the chain saw is improved, and the volume of the chain saw is reduced.

Optionally, the key direction of the operation button is perpendicular or approximately perpendicular to the display plane 304, so that the user can conveniently adjust the machine while observing the state of the machine.

Optionally, the surface of the operation button is provided with a function prompt pattern, and the image-text content of the function prompt pattern is presented by adopting a concave, convex or plane structure, so that a user can know the functions of all the operation buttons according to the function prompt pattern on the surface of the operation button, and the user can quickly know the functions of all the operation buttons without checking the product specifications in real time, thereby being beneficial to helping the user to quickly and skillfully use the chain saw.

Optionally, the chain saw further comprises at least one control board configured to at least one of: processing information related to the chain saw, performing operation and protection control on the chain saw, and controlling the display device 34 to perform display; the internet of things module 36 is provided with a UART interface, and the internet of things module 36 is in bidirectional communication connection with the control board through the UART interface.

The universal asynchronous receiver Transmitter (Universal Asynchronous Receiver/Transmitter, UART) is used to realize the bi-directional communication connection between the internet of things module 36 and the control board. Optionally, the internet of things module 36 may also implement a bi-directional communication connection with the power supply device 2 through a UART interface. Optionally, the internet of things module 36 may also implement a bi-directional communication connection with the control button through a UART interface. Optionally, the main control board and the battery pack 21 can also communicate through a D pin.

Optionally, the external device 200 is configured to at least set the oil output, lighting, bluetooth pairing of the chainsaw through the internet of things module 36, so that the user can control the oil output (oil output system 38), lighting (lighting system 37), bluetooth pairing, etc. of the chainsaw through the external device 200; optionally, the display interface is equipped with the touch-control district, and the touch-control district is used for receiving touch-control input instruction to the user can be through the operation chain saw of the touch-control district of display interface, makes the operation of chain saw richer, and thereby the user can select the operation mode to the chain saw according to the habit of using.

In an alternative embodiment, as shown in fig. 4, the chainsaw 100 may further include a driving circuit 21, a controller 22, and a motion detecting device 23, the driving circuit 21 being electrically connected to the motor 24 for driving the operation of the motor 24; a controller 22 is accommodated in the housing 13, the controller 22 being electrically connected to the driving circuit 21 to control at least the operation of the motor 24; the motion detection device 23 is connected with the main body part or the working part in an associated manner, and is connected with the controller 22, and is used for detecting the motion variation of the main body part or the working part in at least one direction; the controller 22 is configured to control the motor 24 to enter a braking process when the motion detection device 23 detects that the amount of change in motion of the main body portion or the working member in at least one direction exceeds a preset condition.

The chainsaw is configured to be capable of communication connection with the external device 200; the external device 200 is configured at least for a user to set information related to preset conditions, or the controller 22 is further configured to control the motor to enter a braking process based on the acquired motion variation and a target control program set by the external device 200.

The motion detection means 23 may, among other things, include, but are not limited to, gyroscopes and/or linear accelerometers, etc. The preset condition may be a range of movement variation allowed in at least one direction of the main body portion or the working member input by the user through the external device 200 or the display device 34 or the like.

Specifically, the user may set information related to a preset condition through the external device 200, and the motion detection device 23 may detect an operation variation in at least one direction of the main body portion or the working member, so that when the controller 22 obtains the preset condition, if the motion detection device 23 detects that the motion variation in at least one direction of the main body portion or the working member exceeds the preset condition, the motor is controlled to enter a braking process, and when the running state of the chain saw is not within the preset range, the controller may automatically control the motor to enter the braking process, thereby improving the operation safety performance of the chain saw in the use process.

In an exemplary embodiment, the preset conditions may include a speed preset condition and an angle preset condition, and when the chainsaw makes a forward cut, the controller controls the motor to enter a braking process to stop the chainsaw for a prescribed time when the speed of the chainsaw in the Y direction exceeds the speed preset condition, and simultaneously, controls the motor to enter the braking process to stop the chainsaw for a prescribed time when the angle of the chainsaw in the Y direction exceeds the angle preset condition; in another alternative embodiment, when the chain saw makes a lateral cut, the controller controls the motor to enter a braking process when the speed of the chain saw in the X direction exceeds a speed preset condition so as to stop the chain saw for a specified time, and simultaneously, when the angle of the chain saw in the X direction exceeds an angle preset condition, the controller also controls the motor to enter the braking process so as to stop the chain saw for a specified time; in yet another exemplary embodiment, when the user normally releases the rear handle operating member 35, the controller also controls the motor to enter a braking process or the chainsaw to enter a normal braking process.

Optionally, the preset condition relates to a brake sensitivity, and the external device 200 is configured to set the brake sensitivity of the brake system 39 of the chainsaw 100 in an inorganic adjustment, in an alternative embodiment, the brake sensitivity satisfies: and when the brake sensitivity is 0, the automatic brake function is closed, so that a user can set preset conditions through the external equipment 200, adjust the brake time and the brake sensitivity, and the chain saw is suitable for customers with different requirements, and the use feeling of the user is improved.

Optionally, the target control program matches the brake sensitivity, and the external device 200 is configured to set the brake sensitivity in a stepless adjustment manner, in an alternative embodiment, the brake sensitivity satisfies: and the speed of the chain saw is more than or equal to 0 and less than or equal to 100 percent, so that a user can set preset conditions through the external equipment 200, and the braking time and the braking sensitivity are adjusted, thereby the chain saw is suitable for customers with different requirements, and the use feeling of the user is improved.

Optionally, the chainsaw provided in this embodiment further includes a rear handle operating member 35, and the controller is further configured to obtain a first braking signal triggered by the rear handle operating member 35, and control the motor to enter the braking process according to the first braking signal.

Wherein the first brake signal may be a signal to the rear handle operator 35 to trigger the motor to enter the braking process, in an alternative embodiment, the first brake signal is triggered when the rear handle operator 35 is released.

Specifically, when the movement variation of the main body portion or the working member of the chainsaw in at least one direction exceeds the preset variation, the rear handle operating member 35 may trigger the first braking signal, so that the controller may control the motor to enter the braking process according to the first braking signal when the first braking signal is acquired.

Optionally, the chainsaw further comprises a front guard 17, and the controller is further configured to acquire a second braking signal triggered by the front guard 17, and control the front guard 17 to perform mechanical braking according to the second braking signal.

The second braking signal may be a signal triggered by the front guard 17 to control the mechanical braking of the chain saw. Specifically, when the amount of change in movement of the main body portion or the working member of the chainsaw in at least one direction exceeds a preset amount of change, the front guard 17 may trigger the second braking signal, so that the controller may control the front guard 17 to perform mechanical braking according to the second braking signal when acquiring the second braking signal.

Optionally, the external device 200 is further configured for a user to set a braking mode including any one or a combination of more of an automatic braking mode, a manual braking mode, and a mechanical braking mode. In an exemplary embodiment, the user may set the braking mode to a single automatic braking mode through the external device 200, in another exemplary embodiment, the user may set the braking mode to a single manual braking mode through the external device 200, and in yet another alternative embodiment, the user may set the braking mode to a single manual braking mode through the external device 200; in yet another alternative embodiment, when the chain speed of the chain saw is greater than 18m/s, the light may not meet the requirement by the traditional mechanical braking, so the user can stop the motor in a short time by combining a plurality of braking modes; for example, the user may set the braking mode to an automatic braking mode and a manual braking mode by using the external device 200, or may set the braking mode to an automatic braking mode, a manual braking mode and a mechanical braking mode by using the external device 200, so that the user may autonomously select the braking mode according to the usage habit.

In an alternative embodiment, the chain saw provided in this embodiment further comprises a control device electrically connected to at least the display device 34; the control device is configured to be able to respond to any of a variety of preset instructions to illuminate the display interface.

The plurality of preset instructions may include, but are not limited to, at least one of a button trigger instruction, a dial button trigger instruction, a hardware plug trigger instruction, or a remote trigger instruction.

Specifically, when the control device receives one or more of a button trigger instruction, a toggle button trigger instruction, a hardware plug trigger instruction or a remote trigger instruction, the control device responds to the triggered instruction to light the display interface, so that the user does not need to manually light the display interface of the display device 34, distraction of the user due to manual light of the display interface is avoided, and the safety performance of the chain saw is improved.

Optionally, the chain saw further comprises an operating member comprising at least one of: a push button, a toggle button or a switch, the control device being configured to respond to a trigger instruction of any one of the operating members.

In an exemplary embodiment, the button trigger command is triggered when the user operates the button, such that when the user controls the chainsaw via the operation button, the control device may respond to the button trigger command to illuminate the display interface.

Alternatively, the display device 34 is configured to be capable of communication connection with the external apparatus 200; the external device 200 is at least configured for a user to light up or close a display interface and generate a remote trigger instruction based on a user operation.

In an exemplary embodiment, when the user pre-lights the display interface, a remote trigger instruction may be generated by operating the external device 200, so that the control apparatus may respond to the remote trigger instruction to light the display interface.

Optionally, the control device is further configured to detect a plug connection state of the power supply device 2, and generate a hardware plug trigger instruction based on the plug connection state, so that the control device can light the display interface according to the hardware plug trigger instruction.

In an alternative embodiment, the display interface has at least a first display brightness and a second display brightness; the control device is configured to control the display interface to switch from the first display brightness to the second display brightness in response to any one of at least two preset instructions.

It should be noted that the preset instruction is stored in the tool or a storage module on the terminal device, and specifically, the preset instruction is a plurality of preset determined instructions.

In this embodiment, the first display luminance and the second display luminance may be set according to actual needs. If the first display brightness is set to 0 and the second display brightness is set to 100%, the control device can realize the lighting and closing control of the display interface through brightness switching.

Optionally, the control device is configured to control the display interface to be turned off when the duration of the operation of the chainsaw is not performed reaches the preset time, so that the display interface is turned off when a user does not need to view the running state of the chainsaw through the display device 34, thereby being beneficial to energy saving and environmental protection and improving the economical efficiency of the chainsaw.

The preset time may be a time set by a user according to the user's own needs when the display interface is closed when the operation is not performed. In an alternative embodiment, the display device 34 is configured to set the preset time in a stepless adjustment manner, so that the user can set the preset time to any time according to the user's own needs, and the requirements of different users on the display duration can be met.

Optionally, the chain saw further comprises a photosensitive module, which is integrally arranged with the display device 34 or the housing 13; the control device is configured to acquire light detection information of the photosensitive module and convert the light detection information into a first brightness adjustment instruction.

The photosensitive module may, but not limited to, include a light sensor, and the first brightness adjustment instruction may include brightness of the display interface, and may close the display interface when the brightness of the display interface is 0.

In an exemplary embodiment, the greater the light intensity in the light detection information of the photosensitive module, the greater the brightness of the display interface in the first brightness adjustment instruction, so that the brightness of the display interface can be changed according to the intensity of ambient light, and a user does not need to manually adjust the brightness of the display interface, so that the display content can be always seen clearly no matter what ambient light is in, the eyes of the user can be protected, and meanwhile, when the intensity of the ambient light is weaker, the brightness of the display interface is controlled to be reduced, thereby being beneficial to saving energy and protecting the environment and improving the economy of the chain saw.

In an alternative embodiment, the chain saw further comprises an operating member comprising at least one of: the control device is configured to acquire the position detection information of the operating member and convert the position detection information into a second brightness adjustment instruction, so that a user can adjust the brightness of the display interface through the button, the dial or the switch; in another alternative embodiment, display 34 is configured to be communicatively connectable with external device 200; the external device 200 is at least configured to allow the user to set the brightness of the display interface, so that the user can adjust the brightness of the display interface through the external device 200, so that the user can adjust the brightness of the display interface according to his own preference, and select a manner of setting the brightness of the display interface.

In an embodiment, fig. 5 is a schematic structural diagram of a guide plate pressing cover plate under a view angle provided by the embodiment of the present application, fig. 6 is a schematic structural diagram of a guide plate pressing cover plate under another view angle provided by the embodiment of the present application, fig. 7 is a schematic structural diagram of a nut anti-lost structure under a view angle provided by the embodiment of the present application, fig. 8 is a schematic structural diagram of a nut anti-lost structure under another view angle provided by the embodiment of the present application, and in combination with fig. 5 to 8, the chain saw further includes a nut anti-lost structure 4, the nut anti-lost structure 4 is disposed on the guide plate pressing cover plate 5, and the guide plate pressing cover plate 5 is used for fixing a guide plate 11. The compression nut is connected to the guide plate compression cover plate 5 through the spring steel wire 41, so that the nut can be screwed with the bolt, and the nut can be prevented from falling off and losing during disassembly.

In one embodiment, the chain saw 100 further comprises a chip blocking block 6, wherein the chip blocking block 6 is arranged at the tail part of the guide plate pressing cover plate 5 and is adjacent to the battery pack, and is used for chip removal guiding on one hand and preventing chips from entering the battery pack; on the other hand, the chain is prevented from falling off and being hit on the battery pack, and secondary protection is carried out on the battery pack.

Based on the same conception, the present embodiment also provides an electric tool including a tool main body or main body portion, a power supply device, a motor, a working member or output portion or cutting portion, a motor, a driving circuit, a controller, a motion detection device, and the like; the tool body includes a housing, a front end of the tool body being configured to be able to mount a working component; the power supply device is detachably connected to the shell to supply power to the electric tool; the motor is powered by a power supply device; the working part is arranged at the front end of the tool main body and is used for being driven by a motor to realize the cutting function of the electric tool; the motor is accommodated in the shell and outputs power to drive the working part to work; the driving circuit is electrically connected to the motor and used for driving the motor to operate; the controller is accommodated in the shell and is electrically connected to the driving circuit to at least control the operation of the motor; the motion detection device is connected with the main body part or the working part in an associated mode, and is connected with the controller and used for detecting the motion variation of the main body part or the working part in at least one direction; the power tool is configured to be capable of communication connection with an external device; the external device is at least configured for user operation to enable or disable an automatic braking mode of the power tool; in the automatic braking mode, the controller can control the motor to enter a braking process based on the acquired motion variation.

Specifically, when a user operates to start an automatic braking mode through external equipment, the controller can control the motor to enter a braking process based on the acquired operation variation, and when the user operates to close the automatic braking mode of the electric tool through the external equipment, the controller of the electric tool cannot control the motor to enter the braking process based on the acquired operation variation, so that the user can start or close the automatic braking mode of the electric tool according to own requirements, the electric tool is suitable for users with any requirements, and universality of the electric tool is improved.

Optionally, the electric tool further includes an internet of things module configured to be at least capable of communication connection with an external device; the external device is configured to set the braking sensitivity of the automatic braking mode in a stepless adjustment mode, so that a user can set the braking sensitivity of different automatic braking modes through the external device according to the requirement of the user on the sensitivity, and in an alternative embodiment, the braking sensitivity is more than or equal to 0 and less than or equal to 100%, so that the electric tool is suitable for users with different requirements, and the universality of the electric tool is further improved.

Optionally, the electric tool in this embodiment may further include a display device mounted to the housing for displaying an operation state of the electric tool; the internet of things module is configured to be at least capable of being in communication connection with external equipment so as to receive or send information related to the electric tool; the display device at least comprises a display interface; at least part of the internet of things module is positioned in a preset spherical area taking the display center of the display interface as the center of a circle; the radius of the preset spherical area is greater than or equal to 0mm and less than or equal to 50mm, so that the operation button for triggering the operation control instruction of the internet of things module can be arranged near the operation button around the display device, the hardware layout is more compact, the integration level of the chain saw is improved, and the volume of the chain saw is reduced.

Optionally, in this embodiment, the display interface may be used to display an operating state of the chain saw, and the electric tool further includes a control device configured to be capable of lighting the display interface in response to any one of a plurality of preset instructions.

The plurality of preset instructions may include, but are not limited to, at least one of a button trigger instruction, a dial button trigger instruction, a hardware plug trigger instruction, or a remote trigger instruction.

Specifically, when the control device receives one or more of a button trigger instruction, a toggle trigger instruction, a hardware plug trigger instruction or a remote trigger instruction, the control device responds to the triggered instruction to light the display interface, so that the user does not need to manually light the display interface of the display device 34, thereby avoiding distraction of the user due to manual light of the display interface and improving the safety performance of the electric tool.

The foregoing has outlined and described the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the present application in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the present application.

Claims (14)

1. A chain saw, comprising:

a housing formed with or connected to a handle for a user to hold;

one end of the guide plate is supported by the shell and is used for supporting and guiding the chain;

a power supply detachably connected to the housing to supply power to the chain saw;

a display device mounted to the housing for displaying an operating state of the chain saw;

characterized by further comprising:

the internet of things module is configured to be at least capable of being in communication connection with external equipment so as to receive or send information related to the chain saw;

the display device at least comprises a display plane;

the projection of the display plane on the first plane is at least partially overlapped with the projection of the internet of things module on the first plane, and the first plane is basically parallel to the display plane.

2. The chain saw as recited in claim 1, further comprising: an operating element comprising at least one operating button for triggering an operation control instruction; the key direction of the operation button is vertical or approximately vertical to the display plane.

3. The chain saw as in claim 2, wherein the operating button is provided in a characteristic region of the handle, the characteristic region being a region operable by a hand held by a user on the handle.

4. The chain saw as recited in claim 2, wherein said operating element comprises a first operating button for triggering operation control instructions for at least two different functions based on a time of press or a number of presses.

5. The chain saw as in claim 4, wherein the first operating button is configured to have at least a lighting function and a bluetooth function.

6. The chain saw as in claim 2, wherein the operating button surface is provided with a functional cue pattern, the graphical content of which is presented in a concave, convex or planar configuration.

7. The chain saw as in claim 2, wherein the display device comprises a key indication area for indicating an operating state of the operating button.

8. The chain saw as recited in any one of claims 1-7, further comprising: at least one control board configured to at least one of: processing information related to the chain saw, executing operation and protection control on the chain saw, and controlling the display device to execute display; the internet of things module is provided with a UART interface, and the internet of things module is in bidirectional communication connection with the control board through the UART interface.

9. The chainsaw of any of claims 1-7, wherein the external device is configured at least for setting an oil volume, lighting, bluetooth pairing of the chainsaw.

10. The chain saw as recited in any one of claims 1-7, wherein said display device is provided with a touch area for receiving touch input instructions.

11. A chain saw, comprising:

a housing formed with or connected to a handle for a user to hold;

one end of the guide plate is supported by the shell and is used for supporting and guiding the chain;

a power supply detachably connected to the housing to supply power to the chain saw;

a display device mounted to the housing for displaying an operating state of the chain saw;

characterized by further comprising:

the internet of things module is configured to be at least capable of being in communication connection with external equipment so as to receive or send information related to the chain saw;

the display device at least comprises a display interface;

at least part of the internet of things module is positioned in a preset spherical area taking the display center of the display interface as the center of a circle; the radius of the preset spherical area is more than or equal to 0mm and less than or equal to 50mm.

12. The chain saw as recited in claim 11, further comprising: at least one control board configured to at least one of: processing information related to the chain saw, executing operation and protection control on the chain saw, and controlling the display device to execute display; the internet of things module is provided with a UART interface, and the internet of things module is in bidirectional communication connection with the control board through the UART interface.

13. The chainsaw of claim 11, wherein the external device is configured at least for setting a light output, lighting, bluetooth pairing of the chainsaw.

14. A power tool, comprising:

a housing;

a power supply device detachably connected to the housing to supply power to the power tool;

a motor powered by the power supply device;

an output section driven by the motor to perform a cutting function of the electric tool;

a display device mounted to the housing for displaying an operating state of the power tool;

the internet of things module is configured to be at least capable of being in communication connection with external equipment so as to receive or send information related to the electric tool;

the display device at least comprises a display interface;

at least part of the internet of things module is positioned in a preset spherical area taking the display center of the display interface as the center of a circle; the radius of the preset spherical area is more than or equal to 0mm and less than or equal to 50mm.