CN113285568A - Electric compressor and method for managing manufacturing information of electric compressor - Google Patents
Electric compressor and method for managing manufacturing information of electric compressor Download PDFInfo
- Publication number
- CN113285568A CN113285568A CN202110126607.4A CN202110126607A CN113285568A CN 113285568 A CN113285568 A CN 113285568A CN 202110126607 A CN202110126607 A CN 202110126607A CN 113285568 A CN113285568 A CN 113285568A
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- manufacturing information
- motor
- inverter
- electric compressor
- voltage connector
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 239000003507 refrigerant Substances 0.000 claims abstract description 11
- 238000007726 management method Methods 0.000 claims description 20
- 238000012790 confirmation Methods 0.000 claims description 8
- 230000007547 defect Effects 0.000 abstract description 11
- 230000006870 function Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0025—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/04—Manufacturing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/35—Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Abstract
The present invention relates to an electric compressor and a method for managing manufacturing information of the electric compressor, the electric compressor includes: a housing; a motor disposed inside the housing; a compression device receiving power from the motor to compress a refrigerant; and an inverter for controlling the motor, wherein the inverter includes a printed circuit board mounted with a plurality of components, at least one of the plurality of components includes a storage element storing manufacturing information, so that a defect cause can be tracked and eliminated by confirming the manufacturing information.
Description
Technical Field
The present invention relates to an electric compressor and a manufacturing information management method of the electric compressor, and more particularly, to an electric compressor and a manufacturing information management method of the electric compressor capable of tracking manufacturing information such as a product number.
Background
Generally, a compressor used in an air conditioning system of an automobile performs the following functions: the refrigerant that has evaporated from the evaporator is sucked, compressed to a high-temperature and high-pressure state that is easily liquefied, and sent to the condenser.
These compressors are classified into a mechanical compressor performing a compression operation by receiving a driving force from an engine of a vehicle and an electric compressor performing a compression operation by driving an electric motor (hereinafter, referred to as an electric motor) according to a separate power source. The electric compressor generally includes: a housing; a motor disposed within the housing; a compression device receiving power from the motor to compress a refrigerant; and an inverter for controlling the motor to variably adjust the cooling efficiency while adjusting a rotation speed, torque, etc. of the motor.
Here, in a general motor-driven compressor, manufacturing information such as a product number is marked on the outside of a shell for quality management, and when a defect occurs in the motor-driven compressor, the manufacturing information marked on the outside of the shell is confirmed to track and eliminate the cause of the defect.
However, in such a general electric compressor and a method for managing manufacturing information of the electric compressor, when the manufacturing information marked on the outside of the housing is erased, the manufacturing information cannot be confirmed, and thus the cause of the defect cannot be traced and eliminated.
Disclosure of Invention
Technical problem to be solved
Accordingly, an object of the present invention is to provide an electric compressor and a method for managing manufacturing information of the electric compressor, which can track and eliminate the cause of a defect by confirming the manufacturing information.
Means for solving the problems
In order to achieve the above object, the present invention provides a motor-driven compressor including: a housing; a motor disposed inside the housing; a compression device receiving power from the motor to compress a refrigerant; and an inverter for controlling the motor, wherein the inverter includes a printed circuit board on which a plurality of components are mounted, and at least one of the plurality of components includes a storage element storing manufacturing information.
The printed circuit board may include a high voltage unit H and a low voltage unit L, and the memory element may be disposed in the high voltage unit H.
The memory element may be provided as a microcontroller unit.
The housing may include a label having at least a portion of the manufacturing information.
The label may be formed in plural, and the plural labels may be arranged at positions different from each other.
The manufacturing information may include at least one of a production date, a production area, a production factory, a product number, and the tag information.
In addition, the present invention provides a method for managing manufacturing information of an electric compressor, the method comprising: a manufacturing information scanning step for scanning manufacturing information of a motor-driven compressor, the motor-driven compressor including: a housing; a motor disposed inside the housing; a compression device receiving power from the motor to compress a refrigerant; and an inverter for controlling the motor, wherein the inverter includes a printed circuit board on which a plurality of components are mounted, at least one of the plurality of components including a storage element storing manufacturing information; and a manufacturing information input step of inputting the manufacturing information scanned in the manufacturing information scanning step into a storage element of the inverter.
A label attaching step of attaching a label having the manufacturing information to the housing may be further included.
In the manufacturing information scanning step, the manufacturing information of the label may be scanned.
The motor-driven compressor includes a high-voltage connector for supplying current to the inverter and a low-voltage connector for communicating with the inverter, and the manufacturing information inputting step includes: a first connection step of connecting the high-voltage connector and a power supply; a second connection step of connecting the low-voltage connector with a computer; a current applying step of applying a current from the power source to the inverter through the high-voltage connector; and a writing step of inputting manufacturing information into the memory element by the computer through the low-voltage connector.
The electric compressor manufacturing information management method may further include a manufacturing information connection confirmation step of connecting to the inverter to confirm the manufacturing information input to the storage element.
The motor-driven compressor includes a high voltage connector for supplying current to the inverter and a low voltage connector for communicating with the inverter, and the manufacturing information connection confirmation step may include: a first connection step of connecting the high-voltage connector and a power supply; a second connection step of connecting the low-voltage connector with a computer; a current applying step of applying a current from the power source to the inverter through the high-voltage connector; and a reading step of confirming manufacturing information input to the memory element by the computer through the low-voltage connector.
Effects of the invention
In the electric compressor and the method for managing the manufacturing information of the electric compressor according to the present invention, the electric compressor includes: a housing; a motor disposed inside the housing; a compression device receiving power from the motor to compress a refrigerant; and an inverter for controlling the motor. Wherein the inverter includes a printed circuit board mounted with a plurality of components, at least one of the plurality of components includes a storage element storing manufacturing information, so that a defect cause can be tracked and eliminated by confirming the manufacturing information.
Drawings
Fig. 1 is a perspective view showing an electric compressor according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a plan view illustrating the inverter of fig. 2.
Fig. 4 is a system diagram showing components connected to the inverter of fig. 2.
Fig. 5 is a flowchart illustrating a method of managing manufacturing information of the electric compressor of fig. 1.
Description of the reference numerals
100: the housing 200: electric motor
300: the compression device 400: inverter with a voltage regulator
412: storage element 420: high voltage connector
430: low-voltage connector 500: label (R)
Detailed Description
Hereinafter, a motor-driven compressor and a motor-driven compressor manufacturing information management method according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a perspective view illustrating an electric compressor according to an embodiment of the present invention, fig. 2 is a sectional view of fig. 1, fig. 3 is a plan view illustrating an inverter of fig. 2, fig. 4 is a system diagram illustrating components connected to the inverter of fig. 2, and fig. 5 is a flowchart illustrating a management method of manufacturing information of the electric compressor of fig. 1.
Referring to fig. 1 to 4, a motor-driven compressor according to an embodiment of the present invention may include: a housing 100; a motor 200 which is provided in the inner space of the housing 100 and generates power; a compression device 300 receiving power from the motor 200 and compressing refrigerant; and an inverter 400 that controls the motor 200.
The case 100 may include: a motor housing 110 having a motor receiving space for receiving the motor 200; a front housing 120 connected to one side of the motor housing 110 and accommodating the compression device 300; a rear case 130 connected to the other side of the motor case 110 and accommodating the inverter 400; and an inverter cover 140 connected to the rear case 130 and covering the inverter 400.
The motor 200 may include: a stator 210 fixed inside the motor housing 110; a rotor 220 positioned inside the stator 210 and rotated by interaction with the stator 210; and a rotation shaft 230 connected to the rotor 220 and rotating together with the rotor 220.
The compressing device 300 may include: a fixed scroll 310 fixedly installed; a rotating scroll 320 engaged with the fixed scroll 310 to form a compression chamber and interlocked with the rotating shaft 230 to rotate. Here, in the present embodiment, the compression device 300 is formed in a so-called scroll type, but is not limited thereto, and may be formed in other manners such as a reciprocating type or a vane rotating type.
The inverter 400 may include a printed circuit board 410 for mounting a plurality of components required for controlling the inverter.
The printed circuit board 410 may include: a high voltage unit H mounting elements (e.g., a microcontroller unit (MCU), an Insulated Gate Bipolar Transistor (IGBT), a Metal Oxide Semiconductor Field Effect Transistor (MOSFET), and the like, and a switching element 414) for an operation power supply of an Integrated Circuit (IC) and an operation power supply of a motor; and a low voltage unit L mounted with a communication element for communicating with, for example, a vehicle.
Here, the high voltage unit H and the low voltage unit L are disposed on one printed circuit board 410, and a predetermined insulation distance may be secured between the high voltage unit H and the low voltage unit L, as shown by a dotted line in fig. 3.
In addition, the components mounted on the high voltage unit H and the devices mounted on the low voltage unit L may be electrically connected to each other by a pattern.
In addition, the inverter 400 includes: a high voltage connector 420 connecting the high voltage electrifying unit and the high voltage unit H to supply current to the inverter 400; and a low voltage connector 430 connecting the low voltage electrifying unit and the low voltage unit L for communication.
Meanwhile, undescribed reference numeral 416 is an optocoupler whose element is internally insulated, one side is connected to the low voltage unit L, and the other side is connected to the high voltage unit H.
Here, according to the motor-driven compressor of the present embodiment, a label 500 may be attached or engraved outside the housing 100, the label 500 including at least a portion of manufacturing information (e.g., a product number, a production date, a production area, a production factory, a QR code, a refrigerant type, an oil type, etc.) of the motor-driven compressor or the inverter.
In addition, in order to cope with a case where at least a part of the manufacturing information marked on the label 500 is erased due to the damage of the label 500, the label 500 may be formed in plural, and the plural labels 500 may be arranged at different positions. That is, for example, as shown in fig. 1, one of the plurality of labels 500 is adhered or engraved on the front case 120, and another one of the plurality of labels 500 may be adhered or engraved on the inverter cover 140. Alternatively, although not separately shown, one of the plurality of labels 500 may be affixed or imprinted on one side of the front case 120, and another of the plurality of labels 500 may be affixed or imprinted on the other side of the front case 120.
In addition, in order to more reliably cope with the case where the tag 500 is damaged, at least one of the plurality of elements of the inverter 400 includes a storage element 412 for storing various information, and manufacturing information may also be stored in the storage element 412.
The memory element 412 may be formed in a manner of having only a single element having a function of storing manufacturing information, but it is preferable that at least one of the plurality of elements is formed to have a function of storing manufacturing information in addition to the original function.
Here, a microcontroller unit fabricated as one chip from a microprocessor and an input/output module for judging the temperature and operation state of the motor-driven compressor and signals transmitted from the vehicle, and controlling a switching circuit to control the operation (rotation speed, current, position, etc.) of the motor, is preferably stored in a Random Access Memory (RAM) region of the microcontroller unit since it includes the RAM region. That is, it is preferable that the microcontroller unit is formed to include the storage element 412.
In the motor-driven compressor according to the present embodiment having such a structure, when the motor 200 is powered on, the rotary shaft 230 rotates together with the rotor 220, and the compression device 300 receives a rotational force from the rotary shaft 230 and can suck, compress, and discharge a refrigerant.
Meanwhile, since the motor-driven compressor according to the present embodiment is electrically connected as shown in fig. 4 and the manufacturing information is recorded and managed according to the motor-driven compressor manufacturing information management method as shown in fig. 5, quality management can be facilitated.
Specifically, referring to fig. 4 and 5, the electric compressor manufacturing information management method (hereinafter, referred to as a management method) according to the present embodiment may include first determination steps S11 and S21 of determining whether an operation to be performed corresponds to the manufacturing information marking step S11 of recording manufacturing information in the electric compressor or the manufacturing information confirmation step S21 of confirming the manufacturing information recorded in the electric compressor.
In addition, in the management method, when the operation to be performed corresponds to the manufacturing information labeling step S11, a label pasting step S12 of pasting a label 500 onto the housing 100 may be included, and for example, a manufacturing information scanning step S13 of scanning manufacturing information of the label 500 using a 2D scanner and manufacturing information input steps S14, S15, S16, S17 of inputting the manufacturing information scanned in the manufacturing information scanning step S13 into the storage element 412 may be included.
Here, the manufacturing information input steps S14, S15, S16, S17 include: a first connection step S14 of connecting the high-voltage connector 420 and a power source (more precisely, a high-voltage energization unit); a second connection step S15 of connecting the low-voltage connector 430 and a computer (more precisely, a low-voltage energization unit); a current supply step S16 of applying a current from the power source to the inverter 400 through the high-voltage connector 420; and a writing step S17 of inputting manufacturing information into the memory element 412 with the computer through the low-voltage connector 430.
Here, solid arrows in fig. 3 show paths of current, and dotted arrows show paths of manufacturing information.
In addition, in the management method, when the operation to be performed corresponds to the manufacturing information confirmation step S21, a second judgment step S22 may be included, which judges whether or not manufacturing information can be confirmed with the tag 500.
In addition, in the management method, when it is determined in the second determination step S22 that the manufacturing information cannot be confirmed with the tag 500, a manufacturing information connection confirmation step S23, S24, S25, S26, which is connected to the inverter 400 to confirm the manufacturing information input into the storage element 412, may be further included.
Here, the manufacturing information connection confirmation steps S23, S24, S25, S26 include: a first connection step S23 of connecting the high voltage connector 420 and a power supply; a second connection step S24 of connecting the low voltage connector 430 and a computer; a current supply step S25 of applying a current from the power source to the inverter 400 through the high-voltage connector 420; and a reading step S26 of confirming the manufacturing information input to the memory element 412 by the computer through the low-voltage connector 430.
According to the electric compressor manufacturing information management method, the manufacturing information can be safely recorded on the electric compressor through the first judging steps S11, S21, the label pasting step S12, the manufacturing information scanning step S13, and the manufacturing information inputting steps S14, S15, S16, S17. That is, the manufacturing information may be recorded in the motor-driven compressor by various means.
In addition, when a defect occurs in the electric compressor, the second judging step S22 and the manufacturing information connection confirming step S23, S24, S25, S26 may confirm the manufacturing information according to the first judging step S11, S21, and thus the cause of the defect may be tracked and eliminated. That is, when the manufacturing information can be confirmed by the tag 500, the manufacturing number can be visually confirmed to trace and remove the cause of the defect, and the confirmation of the manufacturing number, the tracing and removal of the cause of the defect can be performed quickly and easily. In addition, when the manufacturing information marked on the label 500 is erased, the manufacturing information stored in the memory element 412 can be confirmed with the computer, so that the cause of the defect can be tracked and eliminated.
On the other hand, in the case of the present embodiment, in order to improve the security of the management of the manufacturing numbers, the manufacturing information is recorded in the memory element 412 and on the tag 500, but in the range of securely managing the manufacturing numbers, in order to reduce the manufacturing cost, the manufacturing information may be recorded only in the memory element 412 and the tag 500 may be removed. In this case, however, in the management method, the label affixing step S12 and the second judging step S22 must be deleted, and the manufacturing information recorded in another medium must be scanned in the manufacturing information scanning step S13.
Meanwhile, in the present embodiment, the label-pasting step S12 precedes the manufacturing information scanning step S13, but the manufacturing information scanning step S13 may precede the label-pasting step S12.
Claims (12)
1. An electric compressor, comprising:
a housing;
a motor disposed inside the housing;
a compression device receiving power from the motor to compress a refrigerant; and
an inverter for controlling the motor,
wherein the inverter includes a printed circuit board on which a plurality of components are mounted,
at least one of the plurality of elements includes a memory element storing manufacturing information.
2. The motor-driven compressor according to claim 1,
the printed circuit board includes a high voltage unit H and a low voltage unit L,
the storage element is disposed in the high voltage unit H.
3. The motor-driven compressor according to claim 1,
the memory element is provided as a microcontroller unit.
4. The motor-driven compressor according to claim 1,
the housing includes a label having at least a portion of the manufacturing information.
5. The motor-driven compressor according to claim 4,
the label is formed in a plurality of pieces,
the plurality of tags are arranged at different positions from each other.
6. The motor-driven compressor according to claim 1,
the manufacturing information includes at least one of a production date, a production area, a production factory, a product number, and the tag information.
7. A manufacturing information management method of a motor-driven compressor, comprising:
a manufacturing information scanning step for scanning manufacturing information of a motor-driven compressor, the motor-driven compressor including: a housing; a motor disposed inside the housing; a compression device receiving power from the motor to compress a refrigerant; and an inverter for controlling the motor, wherein the inverter includes a printed circuit board on which a plurality of components are mounted, at least one of the plurality of components including a storage element storing manufacturing information; and
a manufacturing information input step of inputting the manufacturing information scanned in the manufacturing information scanning step into a storage element of the inverter.
8. The manufacturing information management method of an electric compressor according to claim 7,
further comprising a label attaching step of attaching a label having the manufacturing information to the housing.
9. The method of managing manufacturing information of an electric compressor according to claim 8,
in the manufacturing information scanning step, the manufacturing information of the label is scanned.
10. The manufacturing information management method of an electric compressor according to claim 7,
the electric compressor includes a high voltage connector for supplying current to the inverter and a low voltage connector for communicating with the inverter,
the manufacturing information input step includes:
a first connection step of connecting the high-voltage connector and a power supply;
a second connection step of connecting the low-voltage connector with a computer;
a current applying step of applying a current from the power source to the inverter through the high-voltage connector; and
and a writing step of inputting the manufacturing information into the memory element by the computer through the low-voltage connector.
11. The manufacturing information management method of an electric compressor according to claim 7,
further comprising a manufacturing information connection confirmation step of connecting to the inverter to confirm the manufacturing information input to the memory element.
12. The method of managing manufacturing information of an electric compressor according to claim 11,
the electric compressor includes a high voltage connector for supplying current to the inverter and a low voltage connector for communicating with the inverter,
the manufacturing information connection confirming step includes:
a first connection step of connecting the high-voltage connector and a power supply;
a second connection step of connecting the low-voltage connector with a computer;
a current applying step of applying a current from the power source to the inverter through the high-voltage connector; and
a reading step of confirming manufacturing information input to the memory element by the computer through the low-voltage connector.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2020-0011959 | 2020-01-31 | ||
| KR20200011959 | 2020-01-31 | ||
| KR1020210003419A KR20210098326A (en) | 2020-01-31 | 2021-01-11 | Electric compressor and electric compressor manufacturing information management method |
| KR10-2021-0003419 | 2021-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113285568A true CN113285568A (en) | 2021-08-20 |
Family
ID=77275532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110126607.4A Pending CN113285568A (en) | 2020-01-31 | 2021-01-29 | Electric compressor and method for managing manufacturing information of electric compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113285568A (en) |
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| CN1632317A (en) * | 2000-02-29 | 2005-06-29 | 科普兰公司 | Compressor with control and protection system |
| JP2003322390A (en) * | 2002-04-25 | 2003-11-14 | Matsushita Electric Ind Co Ltd | Electric appliance and method of manufacturing the same |
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