Gear adjusting circuit and method of electric tool
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology for electric tools and gear adjustment, which is applied in the direction of AC motor control, electrical components, control systems, etc., can solve the problems that the gears of electric tools cannot fully match the user's usage habits intelligently, and cannot meet the user's habitual needs. Customary requirements, intelligent gear adjustment, and the effect of reducing gear switching operations
Active Publication Date: 2022-02-08
JIANGSU DONGCHENG TOOLS TECH CO LTD
View PDF5 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a gear position adjustment circuit and method for an electric tool, which solves the problem that the gear position of the existing power tool cannot fully intelligently match the user's usage habits and cannot meet the user's habitual needs
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] Such as figure 1 The gear adjustment circuit of an electric tool as shown includes positive and negative terminals of the circuit, the positive terminal of the circuit is electrically connected to the motor 2 through the inverter 1, and the inverter 1 is electrically connected to the controller 3, so The controller 3 is electrically connected to the gear switching module 4, the controller 3 includes an operation module 5 and a timing unit 6, the inverter 3 is electrically connected to a current acquisition module 7, and the current acquisition module 7 samples the The current when the electric tool is running, the operation module 5 is electrically connected to the current acquisition module 7, and detects the current when the electric tool is loaded; the timing unit 6 is electrically connected to the operation module 5, and counts the electric current The current duration of the tool when each gear is loaded; the operation module 5 accumulates the corresponding current...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a gear adjusting circuit and method of an electric tool. A positive terminal of the circuit is electrically connected to a motor through an inverter, the inverter is electrically connected to a controller, and the controller is electrically connected to a gear switching module. An inverter circuit is electrically connected to a current acquisition module. An operation module is electrically connected to the current acquisition module and detects the current when an electric tool is loaded. A timing unit is electrically connected to the operation module and counts the current duration of the electric tool when the electric tool is loaded at each gear. The operation module calls and compares the current durations accumulated by the operation module at all gears, and adjusts the gear at which the electric tool is restarted. The conventional electric tool gear switching mode is changed, and a more user-friendly gear switching mode is adopted, so that the gear adjustment of the electric tool is more intelligent, the mode adapts to the use habit of a user automatically, the habitual demand of the user is met, redundant gear switching operation is reduced, and the working efficiency of the user is improved.
Description
【Technical field】 [0001] The invention relates to the field of electric tools, in particular to an electric tool gear adjustment circuit and a method thereof. 【Background technique】 [0002] Electric tools mainly include electric drills, electric hammers, impact drills, curve saws, angle grinders, electric circular saws, cutting machines, electric planers, grinders, impact wrenches, etc., which are mostly used in automobile assembly, railways, medical treatment, construction machinery, Metallurgy, mining, decoration, furniture auto repair, construction and other fields. [0003] As we all know, many electric tools have multiple adjustable gears, and users can adjust the adapted gears according to their own needs to operate. When using electric tools, whether the gears can quickly match the user's habitual operation, Greatly affect the user's work efficiency. [0004] At present, when the existing electric tools are used again, the gears that are turned on again are basical...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more