Ultra-low-voltage direct-current variable-frequency controller and parking air conditioner

A DC frequency conversion and controller technology, used in AC motor control, control systems, vehicle components, etc., can solve the problems of large vibration noise of compressors, poor electromagnetic compatibility, large torque fluctuations, etc., and achieve low operating noise and harmonics. The effect of low wave interference and high efficiency

Pending Publication Date: 2020-09-22
广东新迎燕制冷设备有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the rectangular wave mode of "two phases conducting at the same time" is mainly used for variable frequency drive, and the phase current waveform is approximately rectangular, resulting in abundant high-

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
  • Ultra-low-voltage direct-current variable-frequency controller and parking air conditioner
  • Ultra-low-voltage direct-current variable-frequency controller and parking air conditioner
  • Ultra-low-voltage direct-current variable-frequency controller and parking air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0043] Reference below Figure 1 to Figure 7 Describe the ultra-low voltage DC variable frequency controller according to the embodiment of the present invention, including the power supply circuit 3, wherein:

[0044] DC output assembly circuit 7, the DC output assembly circuit 7 is used to connect with the compressor and output 24V DC voltage to the compressor;

[0045] DC fan interface circuit 4, the DC fan interface circuit 4 is used to connect with the fan, and the DC fan interfac...

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 discloses an ultra-low-voltage direct-current variable-frequency controller and a parking air conditioner. The ultra-low-voltage direct-current variable-frequency controller comprises: apower supply circuit; a DC output assembly circuit; a DC fan interface circuit connected with a compressor phase current overcurrent protection circuit and a sampling circuit; the compressor phase current overcurrent protection circuit; and a control circuit comprising a control chip IC1, wherein the model of the control chip IC1 is R5F24TXADFM, the control circuit is connected with a serial communication sending circuit, a serial communication receiving circuit and an external circuit, and the DC fan interface circuit and the DC output assembly circuit are connected with the control circuit.According to the invention, the DC output assembly circuit and the control circuit are combined, and the voltage/current waveform of the compressor is sine waves, so that the ultra-low-voltage direct-current variable-frequency controller is small in harmonic interference, low in operation noise, high in efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of controllers, in particular to an ultra-low voltage DC frequency conversion controller and a parking air conditioner. Background technique [0002] Most of the existing air conditioners are controlled by constant speed, and the cooling capacity control can only be adjusted by "on-off" mode, and the corresponding temperature fluctuation is relatively large. Judging from domestic / foreign development trends, high-efficiency and energy-saving inverter air conditioners have gradually become the mainstream of consumption. At present, frequency conversion drives are divided into two categories: AC and DC. Compared with DC frequency conversion, AC frequency conversion has disadvantages such as copper / iron loss and large eddy current loss. The DC inverter compressor mainly adopts a permanent magnet synchronous motor (Permanent Magnet Synchronous Motor, PMSM for short), which has the advantages of small size and hi...

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): H02P27/06B60H1/00
CPCB60H1/00814H02P27/06
Inventor 莫凤兵
Owner 广东新迎燕制冷设备有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap