CN112855493A - Compressor, assembly method of compressor assembly and refrigerator - Google Patents
Compressor, assembly method of compressor assembly and refrigerator Download PDFInfo
- Publication number
- CN112855493A CN112855493A CN201911175441.4A CN201911175441A CN112855493A CN 112855493 A CN112855493 A CN 112855493A CN 201911175441 A CN201911175441 A CN 201911175441A CN 112855493 A CN112855493 A CN 112855493A
- Authority
- CN
- China
- Prior art keywords
- compressor
- rotor
- connecting rod
- positioning controller
- initial position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000004590 computer program Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
Abstract
The invention discloses a compressor, an assembly method of a compressor assembly and a refrigerator. The initial position of the rotor is fixed by the positioning controller in the process of installing the connecting rod, so that the initial position of the rotor can be fixed, the actual position can be quickly estimated in the starting process, the starting success rate of the compressor is improved, and the noise is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of refrigerators, in particular to a compressor, a compressor assembly assembling method and a refrigerator.
Background
The working principle of the existing reciprocating compressor is that an alternating magnetic field is generated by a three-phase stator coil, a permanent magnet rotor is dragged by the magnetic field to drive a connecting rod to reciprocate, a piston connected with the connecting rod reciprocates to compress gas in a cylinder to generate high-pressure gas, and the system circulates.
The starting process of the existing variable frequency controller mainly comprises magnetic field positioning, forced dragging, actual position estimation, and switching to double closed-loop operation after the target rotating speed or positioning angle is reached.
Because the production consistency of the rotor, the stator and the connecting rod is not uniform, the initial position of the rotor is not fixed in the starting and positioning process, so that the starting success rate is low and the noise is high.
Disclosure of Invention
The embodiment of the invention provides a compressor, a compressor assembly assembling method and a refrigerator, which are used for improving the starting success rate of the compressor and reducing the starting noise.
In a first aspect, an embodiment of the present invention provides a compressor, including: the device comprises a stator, a rotor, a connecting rod, a piston and a positioning controller;
the stator is used for generating an alternating magnetic field;
the rotor is connected with the connecting rod; the connecting rod is connected with the piston; the rotor is used for driving the piston to reciprocate through the connecting rod under the dragging of the alternating magnetic field;
the positioning controller is used for fixing the initial position of the rotor in the process of installing the connecting rod.
Optionally, the positioning controller fixes the initial position of the rotor in a magnetic attraction manner in the process of installing the connecting rod.
Optionally, the positioning controller is an electromagnet.
Optionally, the compressor further comprises a housing;
the positioning controller is fixed at a preset position of the shell by taking the rotor as a center.
In a second aspect, an embodiment of the present invention provides a method for installing a compressor assembly of a compressor based on the first aspect, including:
mounting a stator and a rotor of the compressor;
and controlling the rotor to be positioned at an initial position by a positioning controller, and installing a connecting rod of the compressor.
Optionally, the controlling the rotor to be located at the initial position by the positioning controller, and the connecting rod for installing the compressor includes:
starting a positioning controller, fixing the initial position of the rotor, and installing a connecting rod of the compressor;
and closing the positioning controller.
Optionally, the positioning controller is an electromagnet.
Optionally, the positioning controller is fixed to a preset position of the casing of the compressor, with the rotor as a center.
In a third aspect, an embodiment of the present invention provides a refrigerator, including the compressor of the first aspect.
The compressor provided by the embodiment of the invention comprises a stator, a rotor, a connecting rod, a piston and a positioning controller, wherein the stator is used for generating an alternating magnetic field, the rotor is connected with the connecting rod, the connecting rod is connected with the piston, the rotor is used for driving the piston to reciprocate through the connecting rod under the dragging of the alternating magnetic field, and the positioning controller is used for fixing the initial position of the rotor in the process of installing the connecting rod. The initial position of the rotor is fixed by the positioning controller in the process of installing the connecting rod, so that the initial position of the rotor can be fixed, the actual position can be quickly estimated in the starting process, the starting success rate of the compressor is improved, and the noise is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a framework structure of an FOC algorithm provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a compressor according to an embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating an assembling method of a compressor assembly according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the embodiment of the invention, when a compressor is started, a variable frequency controller drives the compressor to start through an FOC algorithm, and fig. 1 exemplarily shows a frame structure of the FOC algorithm applied to the embodiment of the invention, based on the frame structure, the refrigerator variable frequency controller can obtain three-phase currents Ia, Ib and Ic flowing through a PMSM motor through a sampling resistor R, obtain I alpha and I beta after Clarke conversion, and convert the three-phase currents Ia, Ib and Ic into Iq and Id through Park conversion; and on the other hand, according to the I alpha and the I beta, estimating the actual rotating speed omega through an estimator, comparing the actual rotating speed omega with the set rotating speed, outputting reference Iq and Id currents through PI regulation, outputting actual Vq and Vd through current loop PI regulation, finally obtaining three-phase power through anti-Clarke and anti-Park conversion and SVM modulation, and driving the motor through a three-phase bridge.
Based on the above description, fig. 2 shows the structure of a compressor according to an embodiment of the present invention in detail.
As shown in fig. 2, the compressor specifically includes: stator 201, stator 202, connecting rod 203, piston 204 and positioning controller 205.
The stator 201 is used for generating an alternating magnetic field, the stator 202 is connected with a connecting rod 203, the connecting rod 203 is connected with a piston 204, the stator 202 is used for driving the piston 204 to reciprocate through the connecting rod 203 under the dragging of the alternating magnetic field, and the positioning controller 205 is used for fixing the initial position of the stator 202 in the process of installing the connecting rod 203.
Specifically, the positioning controller 205 fixes the initial position of the stator 202 by magnetic attraction during the process of installing the connecting rod 203. Thus, the positioning controller 205 may be an electromagnet or other controller with magnetic attraction function.
The positioning controller 205 can be fixed to a preset position of the housing 206 with the stator 202 as a center, and the preset position can be set empirically and arbitrarily (0-360 degrees) as required.
Before the connecting rod 203 is installed on the compressor component, the positioning controller 205 is started, and after the connecting rod 203 is installed, the positioning controller 205 is closed, so that the original automatic installation mode of the connecting rod 203 is not influenced.
Based on the same technical concept, the positioning controller 205 can also detect the position of the connecting rod 203 for maintenance and development of variable frequency control.
Based on the structure of the compressor shown in fig. 2, a flow of a compressor assembly assembling method is exemplarily shown in fig. 3.
As shown in fig. 3, the process specifically includes:
And step 302, controlling the rotor to be located at an initial position through a positioning controller, and installing a connecting rod of the compressor.
When the connecting rod of the compressor is installed, the positioning controller is started first, the initial position of the rotor is fixed, and the connecting rod of the compressor is installed. The positioning controller is closed after the connecting rod is installed.
It should be noted that the embodiment of the present invention further provides a refrigerator, which includes the above compressor.
The above embodiment shows that the compressor includes a stator, a rotor, a connecting rod, a piston, and a positioning controller, the stator is used for generating an alternating magnetic field, the rotor is connected with the connecting rod, the connecting rod is connected with the piston, the rotor is used for driving the piston to reciprocate through the connecting rod under the dragging of the alternating magnetic field, and the positioning controller is used for fixing the initial position of the rotor in the process of installing the connecting rod. The initial position of the rotor is fixed by the positioning controller in the process of installing the connecting rod, so that the initial position of the rotor is fixed, and the consistency of the stator, the rotor and the connecting rod is maintained. In the starting process, the actual position can be quickly estimated, the starting success rate of the compressor is improved, and the noise is reduced.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A compressor, comprising: the device comprises a stator, a rotor, a connecting rod, a piston and a positioning controller;
the stator is used for generating an alternating magnetic field;
the rotor is connected with the connecting rod; the connecting rod is connected with the piston; the rotor is used for driving the piston to reciprocate through the connecting rod under the dragging of the alternating magnetic field;
the positioning controller is used for fixing the initial position of the rotor in the process of installing the connecting rod.
2. The compressor of claim 1, wherein the positioning controller magnetically fixes an initial position of the rotor during installation of the connecting rod.
3. The compressor of claim 1, wherein the positioning control is an electromagnet.
4. A compressor according to any one of claims 1 to 3, further comprising a housing;
the positioning controller is fixed at a preset position of the shell by taking the rotor as a center.
5. A compressor assembly assembling method based on the compressor of any one of claims 1 to 4, comprising:
mounting a stator and a rotor of the compressor;
and controlling the rotor to be positioned at an initial position by a positioning controller, and installing a connecting rod of the compressor.
6. The method as claimed in claim 5, wherein said controlling the rotor to be located at an initial position by the positioning controller, installing a connecting rod of the compressor comprises:
starting a positioning controller, fixing the initial position of the rotor, and installing a connecting rod of the compressor;
and closing the positioning controller.
7. The method of claim 5, wherein the positioning controller is an electromagnet.
8. The method as claimed in any one of claims 5 to 7, wherein the positioning controller is fixed to a predetermined position of a casing of the compressor centering on the rotor.
9. A refrigerator characterized by comprising the compressor of any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175441.4A CN112855493A (en) | 2019-11-26 | 2019-11-26 | Compressor, assembly method of compressor assembly and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175441.4A CN112855493A (en) | 2019-11-26 | 2019-11-26 | Compressor, assembly method of compressor assembly and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112855493A true CN112855493A (en) | 2021-05-28 |
Family
ID=75984995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911175441.4A Pending CN112855493A (en) | 2019-11-26 | 2019-11-26 | Compressor, assembly method of compressor assembly and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112855493A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004015891A (en) * | 2002-06-05 | 2004-01-15 | Toshiba Corp | Inverter, brushless dc motor controlling method, and compressor driving system |
| KR20050073121A (en) * | 2004-01-08 | 2005-07-13 | 엘지전자 주식회사 | Linear compressor and its method for the same |
| EP2086105A2 (en) * | 2008-01-31 | 2009-08-05 | Lg Electronics Inc. | Motor and method for starting the same |
| US20110148226A1 (en) * | 2009-12-23 | 2011-06-23 | Alex Horng | Miniature Motor |
| CN102857161A (en) * | 2012-09-24 | 2013-01-02 | 海信（山东）空调有限公司 | Air-conditioning apparatus and permanent magnet synchronous motor control method and device of air-conditioning apparatus |
| CN102904356A (en) * | 2011-07-27 | 2013-01-30 | 元山科技工业股份有限公司 | Thin type motor |
| CN102969957A (en) * | 2012-11-19 | 2013-03-13 | 海尔集团公司 | Starting control method and control device of direct-current variable frequency air-conditioning compressor |
| CN103375392A (en) * | 2012-04-20 | 2013-10-30 | 珠海格力电器股份有限公司 | Compressor control method and device and air conditioner |
| CN103452799A (en) * | 2013-09-12 | 2013-12-18 | 安鲁荣 | Double-stator linear compressor |
| CN109302114A (en) * | 2018-08-31 | 2019-02-01 | 浙江工业大学 | The permanent magnet synchronous motor full speed range method for controlling position-less sensor realized based on FPGA |
-
2019
- 2019-11-26 CN CN201911175441.4A patent/CN112855493A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004015891A (en) * | 2002-06-05 | 2004-01-15 | Toshiba Corp | Inverter, brushless dc motor controlling method, and compressor driving system |
| KR20050073121A (en) * | 2004-01-08 | 2005-07-13 | 엘지전자 주식회사 | Linear compressor and its method for the same |
| EP2086105A2 (en) * | 2008-01-31 | 2009-08-05 | Lg Electronics Inc. | Motor and method for starting the same |
| US20110148226A1 (en) * | 2009-12-23 | 2011-06-23 | Alex Horng | Miniature Motor |
| CN102904356A (en) * | 2011-07-27 | 2013-01-30 | 元山科技工业股份有限公司 | Thin type motor |
| CN103375392A (en) * | 2012-04-20 | 2013-10-30 | 珠海格力电器股份有限公司 | Compressor control method and device and air conditioner |
| CN102857161A (en) * | 2012-09-24 | 2013-01-02 | 海信（山东）空调有限公司 | Air-conditioning apparatus and permanent magnet synchronous motor control method and device of air-conditioning apparatus |
| CN102969957A (en) * | 2012-11-19 | 2013-03-13 | 海尔集团公司 | Starting control method and control device of direct-current variable frequency air-conditioning compressor |
| CN103452799A (en) * | 2013-09-12 | 2013-12-18 | 安鲁荣 | Double-stator linear compressor |
| CN109302114A (en) * | 2018-08-31 | 2019-02-01 | 浙江工业大学 | The permanent magnet synchronous motor full speed range method for controlling position-less sensor realized based on FPGA |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100486582B1 (en) | Stroke detecting apparatus and method for reciprocating compressor | |
| CN101627532B (en) | Control method and motor starter device | |
| CN100424984C (en) | Synchronous motor startup lock detection circuit and method | |
| CN103688459B (en) | Motor control assembly | |
| CN107196567B (en) | The control method and system of permanent magnet synchronous motor | |
| CA2895919C (en) | Methods and systems for directly driving a beam pumping unit by a rotating motor | |
| US9595899B2 (en) | Motor control device | |
| US10778125B2 (en) | Synchronous electric power distribution startup system | |
| CN111342733B (en) | Method and device for starting control of variable frequency compressor and computer storage medium | |
| JP4060805B2 (en) | Electric motor torque control device, electric motor torque control method, electric motor rotor position detection device, electric motor rotor position detection method, hermetic compressor, and refrigeration air conditioner | |
| CN111064405A (en) | Motor flux weakening control method and device and electrical equipment | |
| CN112855493A (en) | Compressor, assembly method of compressor assembly and refrigerator | |
| CN110880897A (en) | Motor control method and device and driving device | |
| CN105471351B (en) | A kind of control method of DC frequency converting air-conditioner compressor | |
| CN113193789A (en) | Motor starting control parameter optimization method and device and motor starting control system | |
| CN112332729B (en) | Compressor and control method thereof | |
| JP2005168196A (en) | Inverter controller, drive controller of compressor, refrigerator and inverter control method, and recording medium | |
| CN105811832A (en) | Temperature estimation method, device and system of permanent-magnet synchronous motor stator | |
| CN112865656A (en) | Refrigerator compressor driving method, variable frequency compressor and refrigerator | |
| CN110808697A (en) | Method for operating a brushless DC motor | |
| CN113037169A (en) | Permanent magnet synchronous motor non-inductive FOC control low-frequency band load starting system and method | |
| CN111541413A (en) | Compressor control method and device and air conditioner | |
| Seizović et al. | Energy efficient control of variable-speed induction motor drives based on Particle Swarm Optimization | |
| CN112112789B (en) | Method and device for starting linear compressor and linear compressor | |
| JP2008125246A (en) | Motor controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |