Compressor for refrigerator

A refrigerator compressor, compression pump technology, applied in the direction of compressors, irreversible cycle compressors, refrigerators, etc., can solve problems such as interference of household appliances, low work efficiency, large power grid loss, etc., and achieve the effect of improving the cooling speed.

Inactive Publication Date: 2004-09-22
科西亚数码电气(深圳)有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional refrigerator refrigeration starts with a fixed-speed compressor at full pressure, and the starting current is very large, which is 4 to 6 times the rated operating current. Large, low work efficiency, waste of electricity
In order to improve the comprehensive performance of the refrigerator, only the speed control of the compressor motor is carried out, and the energy-saving mode is operated. Therefore, at present, AC

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
  • Compressor for refrigerator
  • Compressor for refrigerator
  • Compressor for refrigerator

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1 ( figure 1 ):

[0029] The permanent magnet DC brushless motor used in this example includes a crankshaft 8, rotor cores 5 and 3 fixed on the crankshaft, a tile-shaped magnet 4 mounted outside the rotor core, and a stator core 2 embedded in the stator core The stator winding 1 in the slot, the tile-shaped magnetic steel is wrapped with a stainless steel collar 9 that fixes it with the rotor core. The tile-shaped magnetic steel adopts anisotropic ferrite whose magnetizing direction is radially oriented Permanent magnets or neodymium iron boron permanent magnets, the stator windings are three-phase windings, the stator three-phase windings are connected to a DC frequency conversion circuit, the rotor cores 3, 5 are laminated silicon steel sheets, and the axial ends are equipped with semicircles The eccentric balance weights 6 and 10 are provided with a non-magnetic isolation plate 7 between the balance weight and the magnetic steel, which can prevent the magnetic s...

Example Embodiment

[0031] Example 2:

[0032] In this example, the rotor magnet for each pole is composed of a radial magnet 4 and two tangential magnets 18 located at both ends of the radial magnet 4 in the axial direction. The radial magnetic steel is the main magnetic pole, and the tangential magnetic steel forms the auxiliary magnetic pole.

[0033] As mentioned above, the present invention is provided with balance weights 6, 10 at both ends of the rotor core in the axial direction, which can use the rotational inertia to solve the problem of the steering transition of the reciprocating movement of the piston, although there is a magnetic isolation plate 7 between it and the magnetic steel. However, due to the small gap between the balance weight and the end face of the magnet, it will inevitably short-circuit some of the magnet's magnetic circuit, increase the motor's magnetic flux leakage, reduce the air gap magnetic density, and affect the motor's output and rapid response. In this example, t...

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 high-efficiency energy-saving refrigerator compressor, including piston-type compressioin pump and motor which are sealed in same shell, is characterized by that the described motor is of permanent magnet brush-less D.C. motor, the exterior of magnetic steel of motor rotor is equipped with a stainless steel socket ring fixing the magnetic steel and rotor core into one body, and two ends of rotor core are equipped with fixed counter balance respectively, and the insulating material of motor is the material with fluorine-resisting property, and the three-phase stator winding on the stator core is connected with D.C. converter circuit. Said invented compressor advantages of quick refrigeration speed, low noise, high efficiency, saving energy, and can raise the power factor of whole system and raise notwork quality.

Description

technical field [0001] The invention belongs to a refrigerator compressor. Background technique [0002] The traditional refrigerator refrigeration starts with a fixed-speed compressor at full pressure, and the starting current is very large, which is 4 to 6 times the rated operating current. Large, low work efficiency, waste of electricity. In order to improve the comprehensive performance of the refrigerator, only the speed control of the compressor motor is carried out, and the energy-saving mode is operated. Therefore, at present, AC inverter compressors have been used in refrigerators. The working efficiency of this refrigerator compressor has been improved, but there is a power factor. Low disadvantage, because its power factor can only reach 0.6.~0.7, the power grid loss is large, and because the speed and pole number of the AC motor are mutually restricted, its maximum speed is lower than 3000 rpm, so it affects the refrigerator. Improved cooling speed and precisio...

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): F04B35/04F25B1/02H02K1/22
Inventor 林德芳
Owner 科西亚数码电气(深圳)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