Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Three-phase DC fan control circuit and three-phase DC fan

A DC fan, control circuit technology, applied in the direction of a single motor speed/torque control, etc., can solve problems such as low efficiency

Inactive Publication Date: 2015-09-30
OCEANKING DONGGUAN LIGHTING TECH +2
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional DC fan generates an alternating current in the coil so that the four poles of the coil continuously change between the N pole and the S pole, thereby driving the DC fan to work, and the efficiency is low

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
  • Three-phase DC fan control circuit and three-phase DC fan
  • Three-phase DC fan control circuit and three-phase DC fan
  • Three-phase DC fan control circuit and three-phase DC fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] figure 1 Shown is a functional block diagram of a three-phase DC fan control circuit in an embodiment. As shown in the figure, the three-phase DC fan control circuit includes a control module 110 , a drive module 120 , a position sensing module 130 and a three-phase motor 140 . Wherein, the three-phase motor 140 adopts a star connection, and its central magnet adopts a six-slot type.

[0022] The position sensing module 130 is used to detect the position of the central magnet in the three-phase motor 140 , and generate a corresponding level signal according to the position change of the ce...

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 present invention discloses a three-phase DC fan control circuit which comprises a control module, a drive module, a position sensing module and a three-phase motor with star connection. The center magnet of the three-phase motor is a six-groove type. The position sensing module comprises three position sensors which are adjacently distributed at the notch of the center magnet and are on the same arc, and the position sensor and the position sensors at two sides are spaced by 60 degrees. The three position sensors are used for detecting the position of the center magnet, generating a corresponding electrical level signal according to the position change of the center magnet and transmitting the electrical level signal to the control module. The control module is used for receiving the electrical level signal transmitted by the position sensors and generating a corresponding drive signal according to the electrical level signal to control the drive module to work. The drive module drives the three-phase motor to rotate to drive a three-phase DC fan to work. The efficiency of the above three-phase DC fan control circuit is high. The invention also discloses the three-phase DC fan which comprises the three-phase DC fan control circuit.

Description

technical field [0001] The invention relates to the technical field of DC fans, in particular to a three-phase DC fan control circuit and a three-phase DC fan. Background technique [0002] At present, a DC fan for dissipating heat is installed inside the general electronic equipment. The performance and efficiency of DC fans directly affect the performance of electronic equipment. The traditional DC fan generates an alternating current in the coil so that the four poles of the coil continuously change between the N pole and the S pole, thereby driving the DC fan to work, and the efficiency is low. Contents of the invention [0003] Based on this, it is necessary to provide a high-efficiency three-phase DC fan control circuit for the above problems. [0004] A three-phase DC fan is also provided. [0005] A three-phase DC fan control circuit, including a control module, a drive module, a position sensing module and a three-phase motor; the three-phase motor is star-conn...

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
IPC IPC(8): H02P6/08
Inventor 周明杰徐亮亮
Owner OCEANKING DONGGUAN LIGHTING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com