Unlock instant, AI-driven research and patent intelligence for your innovation.

Power supply circuit, construction machinery and power supply system thereof

A technology of power supply system and power supply circuit, which is applied in the field of circuits, can solve problems such as power failure of the controller and inability to operate, and achieve the effects of easy operation, avoiding inability to operate, and saving power supply energy

Active Publication Date: 2013-12-18
SANY AUTOMOBILE HOISTING MACHINERY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, in order to provide a power supply circuit, engineering machinery and power supply system thereof in the present invention, to solve the problem in the prior art that the controller and other devices cannot be operated due to power failure when the key switch is powered off

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
  • Power supply circuit, construction machinery and power supply system thereof
  • Power supply circuit, construction machinery and power supply system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the description and sequence of specific structures in this section are only descriptions of specific embodiments, and should not be considered as limiting the protection scope of the present invention.

[0029] Please refer to figure 1 , figure 1 It is a schematic structural diagram of a power supply circuit provided by an embodiment of the present invention.

[0030] Such as figure 1 As shown, the power supply circuit of this embodiment mainly includes battery B+, main switch SC1, first relay K1, diode D1, second relay K2, fuses FU1, FU2, FU3 and FU4, etc., wherein:

[0031] The positive pole of the battery B+ is connected to one end of the main switch SC1, the negative pole is connected to...

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 invention relates to the circuit field, and discloses a power supply circuit, construction machinery and a power supply system thereof. The power supply circuit adopts two relays to provide three grades of supply circuits for a power supply, wherein one is a constant power supply circuit, the second is a non-constant power supply circuit and the third is a time delay power supply circuit, and the power supply state of the time delay power supply circuit is controlled by a first control signal and a second control signal. In the power supply system of the construction machinery, which is provided by the embodiment of the invention, the rotational speed of an engine is read in real time through a controller, and the power supply state of the time delay power supply circuit is determined by the rotational speed, so that not only is the power supply energy saved, but also the controller, a display and other key control devices can be conveniently operated after the construction machinery stops.

Description

technical field [0001] The invention relates to the field of circuits, in particular to a power supply circuit, engineering machinery and a power supply system thereof. Background technique [0002] In the power supply system of rough-terrain cranes, the lines connected to the battery are usually divided into two types: normal electricity and abnormal electricity. The normal power line usually supplies power to hazard alarms, GPS equipment, etc.; the extraordinary power line supplies power to key control devices such as controllers and displays under the control of the key switch. [0003] However, in the above scheme, when the off-road crane is working, the normal power line and the extraordinary power line usually cannot cooperate well. To restart, it needs to go through the process of starting up and initializing, which takes a long time and is not convenient to meet the needs of operation; if all the devices are connected to the normal power line, it is easy to cause th...

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): H02J7/00B66C13/00
Inventor 侯铮周伟万钦
Owner SANY AUTOMOBILE HOISTING MACHINERY
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