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Linear compressor driving controlling method and linear compressor driving controlling method for vehicle

A technology of linear compressors and compression mechanisms, applied in the direction of compressors, machines/engines, AC motor control, etc., can solve problems such as cylinder head enlargement, piston impact, etc.

Inactive Publication Date: 2003-01-29
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the piston moves to the piston head side due to external vibration, if a sine-wave starting current flows through the linear motor, the possibility of the piston hitting the cylinder head increases.

Method used

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  • Linear compressor driving controlling method and linear compressor driving controlling method for vehicle
  • Linear compressor driving controlling method and linear compressor driving controlling method for vehicle
  • Linear compressor driving controlling method and linear compressor driving controlling method for vehicle

Examples

Experimental program
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Embodiment

[0050] First, an example of the configuration of the linear compressor used in the present invention will be described.

[0051] figure 1 It is a side sectional view of the linear compressor of this embodiment. also, figure 1 The illustrated structure is completely installed in the airtight container, but the airtight container is omitted for illustration in this figure.

[0052] In the linear compressor, a compression mechanism for compressing refrigerant and a linear motor for operating the compression mechanism are provided in a hermetic container. The compression mechanism has a cylinder 209 and a piston 207 movably supported in the axial direction of the cylinder 209 , and the cylinder 209 and piston 207 constitute a compression chamber 206 . The linear motor has a fixed part 202 connected to a cylinder 209 and a movable part 204 connected to a piston 207, and generates axial thrust on the piston 207 by magnetic force. exist figure 1 In the figure, the case where ...

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PUM

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Abstract

The invention provides a drive control method of high efficiency and reliability for a linear compressor of a free piston structure. This drive control method for the linear compressor is provided with a compressing mechanism including a cylinder and a piston and a linear motor actuating the compressing mechanism. The liner motor includes a fixed part, connected to the cylinder and a moving part connected to the piston and generates thrust of the piston. The method includes a first process for energizing the linear motor with a direct current component in start up and a second process for starting movement of the piston from a position already shifted by applying alternating current after that.

Description

technical field [0001] The present invention relates to a drive control method of a linear compressor for air conditioning by reciprocating a piston and compressing a refrigerant, and a drive control method of a linear compressor for vehicles. Background technique [0002] As a conventional starting control method for a linear vibration motor, a method has been proposed that detects the displacement, velocity, or acceleration of a movable element constituting a linear motor, and controls the power supply to the coil of an electromagnet according to the detected output (for example, Kaiping No. 10-243688). [0003] In the past, the starting control method of this kind of linear vibration motor, such as Figure 12 As shown, the initial output pulse supplied to the coil is minimized, the output pulse is sequentially increased from the previous output, and the amplitude of the movable element is increased to a predetermined amplitude. [0004] Japanese Patent Application Laid-O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06B60H1/00B60H1/32F04B17/04F04B35/04F04B49/02F24F11/02F24F11/46F24F11/49F24F11/62F24F11/86F24F11/88F25B1/00F25B1/02H02P7/00H02P25/06
CPCF04B35/04F04B39/0005F04B39/12F04B49/06F04B49/12F04B2203/0401F04B2203/0402F04B2207/02F04B2207/03F04B2207/046
Inventor 长谷川杉松吉田诚植田光男
Owner PANASONIC CORP