Check patentability & draft patents in minutes with Patsnap Eureka AI!

Direct current electric equipment speed control method, control device and direct current electric equipment

A technology of electric equipment and speed control, which is used in the control of workpiece feed movement, metal processing equipment, grinding/polishing equipment, etc., can solve the problem that the output speed of the angle grinder cannot reach the set speed of full power, which affects the use of users. experience, etc.

Active Publication Date: 2022-01-28
NANJING CHERVON IND
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For DC angle grinder products, when it is half powered, there will usually be a situation where there are only 4 speeds for 5 gears, that is, the full duty cycle of 5 gears can only keep the speed of 4 gears at this time, that is, the user chooses the highest speed. In the gear position, the output speed of the angle grinder cannot reach the full-power set speed corresponding to the highest gear, thus affecting the user experience

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
  • Direct current electric equipment speed control method, control device and direct current electric equipment
  • Direct current electric equipment speed control method, control device and direct current electric equipment
  • Direct current electric equipment speed control method, control device and direct current electric equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 It is a flow chart of a method for controlling the speed of a DC electric device provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation where the speed of a DC-powered electric device is adjusted when the power is low. When the angle grinder is in a semi-electric state, it is necessary to re-determine the speed of each gear, so that the gear will be output at the set level from high to low under the current voltage. This method can be implemented by software or hardware, for example , executed by a processor storing an execution program, the method specifically includes the following steps:

[0024] S110. Detect the current voltage output by the power supply of the device, and determine the state of the current voltage of the device according to a comparison result between the current voltage and a voltage threshold.

[0025] Among them, due to the use and consumption of the equipment, the output voltage of the equipm...

Embodiment 2

[0045] figure 2 It is a flow chart of a method for controlling the speed of a DC electric device provided in Embodiment 2 of the present invention. This embodiment optimizes the method for determining the speed on the basis of the above-mentioned embodiments. The method specifically includes the following steps:

[0046] S210. Detect the current voltage output by the power supply of the device, and determine the state of the current voltage of the device according to a comparison result between the current voltage and a voltage threshold.

[0047] S220. If the state of the current voltage is a low power state, determine a maximum rotational speed that the current voltage can sustain.

[0048] S230. Comparing the maximum rotation speed with the set rotation speed at full power in each gear of the device to obtain a comparison result about the rotation speed.

[0049] Among them, the device has a full-power set speed corresponding to each gear. After determining the maximum sp...

Embodiment 3

[0063] image 3 A schematic structural diagram of a speed control device for DC electric equipment provided by Embodiment 3 of the present invention, which can be configured in electric equipment. This embodiment is applicable to adjusting the speed of electric equipment when DC-powered electric equipment is used at low power situation, such as image 3 As shown, the device specifically includes: a voltage state determination module 310, a maximum rotational speed determination module 320, a target rotational speed signal determination module 330, and a target rotational speed output module 340, wherein:

[0064] The voltage state determination module 310 is configured to determine the current voltage state of the device according to the comparison result of the current voltage output by the power supply of the device and the voltage threshold.

[0065] Optionally, the voltage state determination module 310 is specifically used for:

[0066] Compare the current voltage with ...

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

No PUM Login to View More

Abstract

The embodiment of the invention discloses a method for controlling the rotational speed of a direct current electric equipment, a control device and the direct current electric equipment. The method includes: determining the state of the current voltage of the device according to the comparison result between the current voltage output by the power supply of the device and the voltage threshold; if the state of the current voltage is a low power state, then determining the maximum rotational speed that the current voltage can sustain ; Determine the target speed signal of each gear under the current voltage according to the comparison result of the maximum speed and the set speed of the device at full power; output the target speed according to the target speed signal in response to the user's gear trigger instruction. In the embodiment of the present invention, by detecting the current output voltage of the device power supply, it is determined that when the device power supply is low, by comparing the maximum speed under the current voltage with the set speed of the device at full power, re-determine the speed of each gear corresponding to the current output voltage The speed signal, when the device is in a low power state, can still output the proper speed signal of each gear according to the gear level.

Description

technical field [0001] Embodiments of the present invention relate to automatic control technology, and in particular to a method for controlling the speed of DC electric equipment, a control device and the DC electric equipment. Background technique [0002] For DC angle grinder products, when it is half powered, there will usually be a situation where there are only 4 speeds for 5 gears, that is, the full duty cycle of 5 gears can only keep the speed of 4 gears at this time, that is, the user chooses the highest speed. In the gear position, the output speed of the angle grinder cannot reach the full-power set speed corresponding to the highest gear, thus affecting the user experience. Contents of the invention [0003] Embodiments of the present invention provide a method for controlling the rotational speed of DC electric equipment, a control device and the DC electric equipment, so that the equipment can output a set rotational speed corresponding to the target gear ac...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B24B23/02B24B55/00B24B49/00
CPCB24B23/028B24B55/00B24B49/006
Inventor 徐振
Owner NANJING CHERVON IND
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com