CN219181720U

CN219181720U - Electric tool

Info

Publication number: CN219181720U
Application number: CN202223091652.XU
Authority: CN
Inventors: 金艳
Original assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Current assignee: Jiangsu Dongcheng Tools Technology Co Ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-06-13
Anticipated expiration: 2032-11-21

Abstract

The present utility model provides an electric tool including: the system comprises a motor driving module, a motor, an MCU, a main switch, a light intensity monitoring module, an intelligent adjusting module, a mode selecting module, an adjusting knob and a sound control module; the mode selection module is connected with the MCU and used for realizing mode selection; the light intensity monitoring module is connected with the intelligent adjusting module and is used for monitoring the light intensity of the environment; the adjusting knob is connected with the intelligent adjusting module and is used for receiving a brightness adjusting instruction; the sound control module is connected with the intelligent adjusting module and is used for collecting sound control instructions. Through integrated light intensity monitoring module, intelligent regulation module, mode selection module, adjust knob and the acoustic control module of setting up on electric tool, realized the integration of multiple different control modes through the cooperation of above-mentioned each module, the convenience of customers uses corresponding control mode under different scenes, the effectual experience that has promoted the user.

Description

Electric tool

[ field of technology ]

The present utility model relates to an electric tool, and more particularly, to an electric tool with multiple light control modes.

[ background Art ]

With the continuous increase of the demands of people, the use of electric tools is more and more complex. In order to ensure smooth operation, a user needs to provide light support for an operation point when using the electric tool to work; many power tools incorporate LEDs and the like.

However, most electric tools are powered on, the LEDs are always on, the LEDs are off after the power is turned off, and the brightness of the LEDs is kept unchanged during the use of the tool. During the use of the tool, the brightness of the LED cannot be automatically adjusted according to the brightness of the operating environment. When a user works in daytime or the environment has enough light intensity, the LEDs are not required to be very bright, but the existing light intensity exceeds the use requirement of the user, invalid loss can be generated, the battery energy is wasted, and the endurance capacity of the tool is reduced; when a user works at night or the environment has insufficient light intensity, the LEDs are required to be very bright, but the existing light intensity cannot meet the use requirement of the client, insufficient illumination can be generated, and the quality experience of the client is reduced. Aiming at the technology, the Chinese published patent CN106304516A provides a control method for intelligently adjusting the brightness of an LED according to the brightness of the ambient light, and the specific design is to intelligently adjust the brightness of an LED lamp according to the change of the ambient light so as to achieve energy conservation and electricity saving; the multi-stage dimming is set, and the dimming precision is high. In addition, the existing control of the LED light generally supports a single control mode, such as a knob, a sound control and the like, and the operation experience is poor.

In view of the above, it is desirable to provide an improved power tool that overcomes the shortcomings of the prior art.

[ utility model ]

The utility model solves the problems in the prior art by adopting the following technical scheme:

a power tool, the power tool comprising: the motor driving device comprises a motor driving module, a motor, an MCU and a main switch, wherein the main switch is connected with the MCU, the MCU is connected with the motor driving module, and the motor driving module is connected with the motor; the power tool further includes: the system comprises a light intensity monitoring module, an intelligent adjusting module, a mode selecting module, an adjusting knob and a sound control module;

the mode selection module is connected with the MCU and used for realizing mode selection;

the light intensity monitoring module is connected with the intelligent adjusting module and is used for monitoring the light intensity of the environment;

the adjusting knob is connected with the intelligent adjusting module and is used for receiving a brightness adjusting instruction;

the sound control module is connected with the intelligent adjusting module and is used for collecting sound control instructions.

According to a further scheme, the intelligent adjusting module receives the ambient light intensity input by the light intensity monitoring module, determines a brightness adjusting command according to the ambient light intensity, and adjusts the light brightness based on the brightness adjusting command.

Further, the electric tool comprises a normal mode and an intelligent mode; the mode selection module is used for realizing switching between a common mode and an intelligent mode.

The intelligent mode comprises a plurality of different working modes, and the mode selection module is also used for realizing the switching of the different working modes.

The intelligent adjusting module receives the brightness adjusting instruction input by the adjusting knob and/or the sound control instruction collected by the sound control module, determines a brightness adjusting instruction according to the brightness adjusting instruction input by the adjusting knob and/or the sound control instruction collected by the sound control module, and adjusts the light brightness based on the brightness adjusting instruction.

The further scheme is that the intelligent regulation module is realized through the MCU.

Further, the electric tool further includes: the voice prompt module is connected with the MCU and used for prompting the mode information of the electric tool.

In a further scheme, the light intensity monitoring module is a photosensitive sensor.

In a further scheme, the adjusting knob further comprises an adjustable potentiometer.

The further scheme is that the electric tool is one of an electric drill, an electric spanner and an electric hammer.

Compared with the prior art, the utility model has the following beneficial effects:

[ description of the drawings ]

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings:

FIG. 1 is a schematic block diagram of a preferred embodiment of the present utility model;

FIG. 2 is a schematic diagram of a circuit module according to a preferred embodiment of the utility model;

FIG. 3 is a circuit diagram of a preferred embodiment of the present utility model;

FIG. 4 is a flow chart of mode switching in accordance with a preferred embodiment of the present utility model.

[ detailed description ] of the utility model

The utility model will be described in further detail with reference to the drawings and embodiments.

The terminology used in the present utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

The adjusting device described in the utility model can be an electric tool/electric device, wherein the electric tool/electric device can be a garden tool, a hand-held tool or other automatic devices needing to work under different light environments; it is within the scope of the present utility model that the above described apparatus/tools be able to employ the essence of the technical solutions disclosed below. The utility model is particularly suitable for devices with various brightness adjustment functions.

In the prior art, the LEDs are always on after the tool is started, the LEDs are off after the tool is stopped, and the brightness of the LEDs is kept unchanged during the use period of the tool. During the use period of the tool, the LED illuminating lamp cannot be automatically adjusted according to the brightness of the operating environment. When a user works in daytime or the environment has enough light intensity, the LEDs are not required to be very bright, but the existing light intensity exceeds the use requirement of the user, invalid loss can be generated, the battery energy is wasted, and the endurance capacity of the tool is reduced; when a user works at night or the environment has insufficient light intensity, the LEDs are required to be very bright, but the existing light intensity cannot meet the use requirement of the user, insufficient illumination can be generated, and the high-quality experience of the user is reduced; meanwhile, the current LED adjusting mode is single, and the LED adjusting mode cannot meet the requirements of users for adjusting light under different environments. In order to solve the problem, the utility model provides a scheme for intelligently adjusting the brightness of the LED.

A power tool, as shown in fig. 1-3, comprising: the motor driving device comprises a motor driving module, a motor, an MCU and a main switch, wherein the main switch is connected with the MCU, the MCU is connected with the motor driving module, and the motor driving module is connected with the motor; the power tool further includes: the system comprises a light intensity monitoring module, an intelligent adjusting module, a mode selecting module, an adjusting knob and a sound control module;

Preferably, the intelligent regulation module receives the ambient light intensity input by the light intensity monitoring module, determines a brightness regulation command according to the ambient light intensity, and regulates the light brightness based on the brightness regulation command.

Preferably, the electric tool includes a normal mode and a smart mode; the mode selection module is used for realizing switching between a common mode and an intelligent mode.

Preferably, the intelligent mode comprises a plurality of different working modes, and the mode selection module is further used for realizing switching of the different working modes.

Preferably, the intelligent adjusting module receives a brightness adjusting instruction input by the adjusting knob and/or a sound control instruction collected by the sound control module, determines a brightness adjusting instruction according to the brightness adjusting instruction input by the adjusting knob and/or the sound control instruction collected by the sound control module, and adjusts the brightness of the light based on the brightness adjusting instruction.

Preferably, the scheme related to the utility model comprises an intelligent mode and a common mode. In the normal mode, the LEDs are always on after the tool is started, the LEDs are off after the tool is stopped, and the brightness of the LEDs is kept unchanged during the use period of the tool and is displayed with the preset rated brightness. In the smart mode: when a customer needs a tool to intelligently adjust the brightness of an LED in a certain operating environment, firstly, the tool enters an intelligent mode by pressing a mode key change-over switch for 2 seconds for a long time (for example), the intelligent mode has 3 different modes to realize the brightness adjustment function of the LED, as shown in fig. 4, modes 1 to 3 are sequentially circulated, an initial default mode 1 is that the tool stops for 2 seconds by pressing the mode key change-over switch for 2 seconds, enters the mode 1, stops for 2 seconds, enters the mode 2, stops for 2 seconds, enters the mode 3, stops for 2 seconds, enters the mode 1, and is sequentially circulated; and if the intelligent mode is pressed for a short time (such as 1 second) in the process, the intelligent mode is exited, and the normal mode is returned. Preferably, the light intensity of the operating environment is detected by a photosensitive sensor; the current mode and the current ambient light intensity are displayed by a display.

In the preferred embodiment, there are 3 different modes for the smart mode, mode 1: the LED brightness can be adjusted by adding an adjusting knob to adjust the resistance of the current-limiting resistor of the LED circuit and changing the voltage drop and the working current at the two ends of the LED. Mode 2: the LED brightness can be adjusted by intelligently judging and adjusting the PWM duty ratio of the LED circuit through the PWM adjusting circuit and detecting the output signal by the photosensitive sensor through the singlechip. Mode 3: the LED brightness can be adjusted by adding the voice control module and intelligently judging and adjusting the PWM duty ratio of the LED circuit through voice control voice recognition signals by the singlechip. In the above scheme, three modes exist in parallel and can be independently operated. Different modes can meet the requirements of different users, and the brightness of the lamp is adjusted. Preferably, the switching of modes 1-3, and the switching of the intelligent mode and the normal mode can also be regulated by voice instructions input by a user. Thereby further improving the convenience of mode switching. Preferentially, the scheme of the utility model also has a voice prompt function, which is used for prompting the current mode state of the tool of the user, abnormal alarm and the like.

In the technical scheme, the knob adjustment is subjective and is carried out by a user according to the brightness degree of the environment or the light intensity displayed by the display screen, and the user needs to stop the manual automatic adjustment to achieve the purpose when using the device. The PWM regulating circuit is intelligent regulation after the single chip microcomputer judges according to the detected light intensity to achieve the purpose. The voice control adjustment is subjective according to the brightness degree of the environment or according to the light intensity displayed by the display screen, and the purpose is achieved by self voice control and intelligent adjustment after judgment during use. The knob is adjusted and is required subjective regulation, and the voice control is adjusted and is more convenient than the knob is adjusted, and PWM adjusts and compares knob to adjust and harmony accuse to adjust more intelligent. Through the technical scheme, the use requirement that the tool can intelligently adjust the brightness of the LED in a certain operating environment can be met, especially the operation in the daytime or at night can be more convenient, the effect of reducing invalid loss and improving the endurance of the tool can be achieved when the tool works in the daytime, the illumination can be more sufficient when the tool works at night, and the high-quality experience of the client can be improved.

In a preferred embodiment, the intelligent regulation module receives a brightness regulation command input by the regulation knob and/or a sound control command collected by the sound control module, determines a brightness regulation command according to the brightness regulation command input by the regulation knob and/or the sound control command collected by the sound control module, and performs light brightness regulation based on the brightness regulation command, where the determining step includes: the brightness control is realized through the time of the PWM high level; the high-low level time (PWM level output) of the LEDs is controlled, the power-on time of the LEDs is changed to adjust the brightness, as shown in fig. 3, when the PWM is high level, the LEDs are lighted, when the PWM is long in high level time, the lighting time of the LEDs is long, the brightness change of the light source can be formed according to the residual time of light rays in human eyes, and different LED brightness can be observed by human eyes.

Preferably, the function of the intelligent regulation module is realized through the MCU. The power tool further includes: the voice prompt module is connected with the MCU and used for prompting the mode information of the electric tool. Preferably, the light intensity monitoring module is a photosensitive sensor. Preferably, the adjusting knob further comprises an adjustable potentiometer. Preferably, the electric tool is one of an electric drill, an electric spanner and an electric hammer.

In a preferred or other embodiment, the intelligent regulation module controls the brightness by PWM high level time; the high-low level time (PWM level output) of the LEDs is controlled, the power-on time of the LEDs is changed to adjust the brightness, as shown in fig. 3, when the PWM is high level, the LEDs are lighted, when the PWM is long in high level time, the lighting time of the LEDs is long, the brightness change of the light source can be formed according to the residual time of light rays in human eyes, and different LED brightness can be observed by human eyes.

In a preferred embodiment, when the ambient light intensity is greater than or equal to a first preset threshold L1 and less than or equal to a second preset threshold L2, the high level time of the PWM is controlled to be T, where T is a brightness threshold; when the L1 is less than or equal to the ambient light intensity L is less than or equal to L2, the MCU is used for controlling the PWM high level time=T, so that the brightness of the LED is normal, and the brightness requirement of the common mode is met.

The step of increasing the brightness value according to the ambient light intensity L and the brightness threshold value comprises the following steps: determining a first coefficient K1 according to the light intensity information L; and calculating high-level time Th of PWM according to the first coefficient K1 and the brightness threshold T, and adjusting the brightness value according to the Th.

When the ambient light intensity L is smaller than L1, the high-level time of the PWM is controlled to be prolonged to Th through the MCU, wherein Th is larger than T, so that the brightness of the LED is improved, and the brightness requirement of the ordinary mode is exceeded. Preferably, th is proportional to T, th=k1×t, and K1>1, K1 may be a fixed value, such as k=1.1, 1.2 … …, etc., and K may be a variable value that is adjusted in real time according to the light intensity in proportional to the light intensity, such as the K1 value is greater as the light intensity value is lower. Wherein, the liquid crystal display device comprises a liquid crystal display device,

K1＝aL+b；

wherein a and b are constant coefficients, preferably, the corresponding relation between the first coefficient and the ambient light intensity is obtained through detecting different ambient light intensities, so that the values of a and b can be calculated, preferably,

K1＝-0.01L+1.4。

in a preferred embodiment, reducing the luminance value according to the ambient light intensity and the luminance threshold comprises: determining a second coefficient K2 according to the light intensity information; and calculating high-level time Th of PWM according to the second coefficient K2 and the brightness threshold T, and reducing the brightness value according to the Th.

When the ambient light intensity L is more than L2, the high level time of the PWM is controlled to be reduced to Th through the MCU, wherein Th is less than T, so that the brightness of the LED is reduced, and the brightness requirement of the ordinary mode is lower. Preferably, th is proportional to T, th=k2×t, where K2<1, K2 may be a fixed value (e.g., k2=0.9, 0.8 … …, etc.), and K may be a variable value that is proportional to light intensity and is adjusted in real time according to light intensity, e.g., as the light intensity value is higher, the K2 value is smaller.

K2＝aL+b；

Wherein a and b are constant coefficients, preferably, the corresponding relation between the second coefficient and the ambient light intensity is obtained through detecting the different ambient light intensities, so that the values of a and b can be calculated, preferably,

k2 -0.01l+1.4 or k2= -0.01l+1.5.

In the scheme, the brightness can be increased and reduced based on the same or different coefficients, and specific selection can be set by a user through the man-machine interaction module so as to meet the use requirements of different users.

In a preferred embodiment, the power tool may further, when in the smart mode: and receiving a control signal input by a user, and adjusting the brightness value according to the control signal. The control signal may be a user operation knob or a signal input through a voice command. Because each user has different sensitivity to light, if the light intensity is automatically adjusted only according to the ambient light intensity, the requirements of all users cannot be met; in order to provide a high-quality experience for the user, the utility model creatively provides a mode embedding, namely, after automatic adjustment is completed through PWM according to the ambient light intensity and the brightness threshold value, the user can still control the brightness to carry out secondary adjustment through operating a knob or inputting a sound instruction. In a preferred embodiment, when in the intelligent mode, the first high level time of the PWM adjusted according to the ambient light intensity is Th, the second adjustment of the brightness is performed according to the instruction input by the user through the operation knob or the sound, the second high level time Th of the adjusted PWM is recorded, the Th is recorded and stored by a processor or other related devices, and the proportionality coefficient Q is calculated;

wherein q=th/TH;

when the external environment light intensity changes, the third high level time Th adjusted according to the environment light intensity is acquired again ₃ At this time, the actual PWM high level of the tool is the fourth high level time Th ₄ 。

Wherein Th is ₄ ＝Q*Th ₃ 。

Preferably, the method further comprises: the corresponding relation between the proportional coefficient Q and the operator information ID is saved, the operator information can be a name of a person or a custom number, so that the proportional coefficient Q is selected according to the personal number when the tool is used next time, and the PWM high level is automatically positioned to the fourth high level time Th when the tool is intelligently regulated ₄ Therefore, the convenience of the user is improved, and the personalized setting of the intelligent mode is realized. In actual work, the tool can be used by different users, and each user needs to carry out secondary adjustment each time due to different sensitivity of each user to light, and the problems can be effectively solved by the scheme provided by the utility model; when the user uses the tool again, the operator information ID can be directly input through the man-machine interaction module, so that the previously maintained proportionality coefficient Q is obtained, the tool can adjust the light brightness according to the proportionality coefficient Q and the environment light intensity, and the use requirements of different users are effectively met.

The utility model provides an electric tool which not only can realize integration of various control modes, but also is convenient for a user to control and improves the control experience of the user; the intelligent light source also has a plurality of different modes, and when the intelligent light source is in an intelligent mode, the environment light intensity is monitored; when the ambient light intensity is smaller than a first preset threshold value, acquiring a brightness threshold value, and adjusting up a brightness value according to the ambient light intensity and the brightness threshold value; and when the ambient light intensity is greater than a second preset threshold value, acquiring a brightness threshold value, and reducing the brightness value according to the ambient light intensity and the brightness threshold value. When the brightness is adjusted, the utility model adjusts according to the ambient light intensity and the brightness threshold value instead of adjusting in a fixed mode, thereby improving the self-adaptability of the brightness adjustment and having smaller granularity of adjustment; moreover, the brightness changes along with the ambient light intensity, so that the user can realize noninductive transition during operation, and the user experience is improved. Further, when the intelligent mode is in the intelligent mode, the adjusting method further comprises the steps of receiving a control signal input by a user, and adjusting the brightness value according to the control signal; different users can carry out secondary adjustment according to actual demands, and the requirements of different users on light intensity are met.

Finally, it should be noted that: the above embodiments are merely illustrative embodiments of the present utility model, and not restrictive, and the scope of the utility model is not limited thereto, although the utility model has been described in detail with reference to the above embodiments, it will be understood by those skilled in the art that any modification or variation of the technical solutions described in the above embodiments or equivalent substitution of some technical features thereof may be easily contemplated by those skilled in the art within the scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A power tool, the power tool comprising: the motor driving device comprises a motor driving module, a motor, an MCU and a main switch, wherein the main switch is connected with the MCU, the MCU is connected with the motor driving module, and the motor driving module is connected with the motor; characterized in that the electric tool further comprises: the system comprises a light intensity monitoring module, an intelligent adjusting module, a mode selecting module, an adjusting knob and a sound control module;

the mode selection module is used for realizing mode switching and is connected with the MCU;

the light intensity monitoring module is used for monitoring the light intensity of the environment and is connected with the intelligent adjusting module;

the adjusting knob receives a brightness adjusting instruction and is connected with the intelligent adjusting module;

the sound control module collects sound control instructions and is connected with the intelligent adjusting module.

2. The power tool according to claim 1, wherein the intelligent adjusting module receives the ambient light intensity input from the light intensity monitoring module, determines a brightness adjusting command according to the ambient light intensity, and adjusts the brightness of the light based on the brightness adjusting command.

3. The power tool of claim 1, wherein the power tool comprises a normal mode and a smart mode; the mode selection module is used for realizing switching between a common mode and an intelligent mode.

4. The power tool of claim 3, wherein the smart mode includes a plurality of different modes of operation, the mode selection module further configured to effect switching of the different modes of operation.

5. The power tool according to claim 1, wherein the intelligent adjusting module receives a brightness adjusting command input by the adjusting knob and/or a sound control command collected by the sound control module, determines a brightness adjusting command according to the brightness adjusting command input by the adjusting knob and/or the sound control command collected by the sound control module, and adjusts the light brightness based on the brightness adjusting command.

6. The power tool of claim 1, wherein the function of the intelligent regulation module is implemented by the MCU.

7. The power tool of claim 1, further comprising: the voice prompt module is connected with the MCU and used for prompting the mode information of the electric tool.

8. The power tool of claim 1, wherein the light intensity monitoring module is a photosensitive sensor.

9. The power tool of claim 1, wherein the adjustment knob further comprises an adjustable potentiometer.

10. The power tool of claim 1, wherein the power tool is one of an electric drill, an electric wrench, and an electric hammer.