US20200191159A1 - Electric compressor - Google Patents
Electric compressor Download PDFInfo
- Publication number
- US20200191159A1 US20200191159A1 US16/698,205 US201916698205A US2020191159A1 US 20200191159 A1 US20200191159 A1 US 20200191159A1 US 201916698205 A US201916698205 A US 201916698205A US 2020191159 A1 US2020191159 A1 US 2020191159A1
- Authority
- US
- United States
- Prior art keywords
- electric compressor
- housing
- mounting lugs
- motor housing
- driving part
- 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.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
-
- 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
- F04C2/00—Rotary-piston machines or pumps
-
- 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
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- 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
- F04C2230/00—Manufacture
- F04C2230/60—Assembly methods
- F04C2230/604—Mounting devices for pumps or compressors
-
- 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
- F04C2240/00—Components
- F04C2240/40—Electric motor
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/805—Fastening means, e.g. bolts
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/12—Vibration
Definitions
- the present invention relates to an electric compressor.
- the electric compressor is divided into a driving part, a compressing part, and a control unit.
- the driving part includes a driving part housing forming an exterior thereof and a stator and rotor which are installed around the same shaft in the driving part housing.
- the compressing part includes a compressing part housing forming an exterior thereof and coupled to a rear end of the driving part housing and rotating and fixed scrolls which are mounted to relatively rotate in the compressing part housing.
- the control unit includes a cover housing forming an exterior thereof and coupled to a front end of the driving part housing and includes a printed circuit board (PCB), various driving circuits, and elements which are mounted in the cover housing.
- PCB printed circuit board
- control unit In a case in which a refrigerant is compressed by the electric compressor, external power is applied to the control unit. In this case, the control unit transmits an operating signal to the driving part.
- an electromagnet type stator press-fitted into an inner circumferential surface of the driving part housing is excited to have magnetic properties, and accordingly, the driving part rotates a rotor at a high speed using an electromagnetic interaction with the rotor.
- the rotating scroll of the compressing part coupled to a rear end of the rotating shaft is synchronized with the rotation of the rotating shaft and rotated at a high speed.
- the compressing part interacts with the fixed scroll matched with the rotating scroll in a state in which the rotating scroll faces the fixed scroll to compress the refrigerant from an outer circumference of a scroll to a central portion of the scroll at a high pressure, wherein the refrigerant flows from the driving part to the compressing part.
- a compressing operation of the refrigerant is completed through a series of processes.
- a conventional electric compressor includes a motor part 10 , a control unit 20 , and a scroll compressing part 30 .
- the motor part 10 generates a rotating force.
- the control unit 20 controls operation of the motor part 10 .
- a fixed scroll 31 and a rotating scroll 32 are embedded in the scroll compressing part 30 .
- the scroll compressing part 30 includes one or more mounting lugs 33 which fix the compressor to a vehicle body so as to reduce amounts of vibrations and noises generated when the rotating scroll 32 operates.
- the mounting lugs are installed on an outer circumferential surface of the scroll compressing part 30 to reduce the amount of vibrations.
- a total force between the fixed scroll 31 and the rotating scroll 32 is designed to be zero, and thus it is difficult to consider the scroll compressing part 30 as a major vibration source.
- the present invention is directed to providing an electric compressor capable of minimizing an amount of vibrations transmitted to a vehicle body by optimizing a position of a mounting lug of a medium electric compressor.
- an electric compressor includes: a driving part being a driving source configured to generate a rotating force of the electric compressor, the driving part including a stator; a motor housing surrounding the driving part, the motor housing including: one or more first mounting lugs installed on an outer surface of the motor housing; and a press fitting portion formed on an inner surface of the motor housing, the stator of the driving part is press fitted into the press fitting portion; a rear housing surrounding a compressing part configured to rotate due to a rotational driving force generated by the driving part so as to compress a refrigerant; and a center housing installed between the motor housing and the rear housing, wherein the first mounting lugs are installed spaced at a first distance from a center of gravity of the electric compressor and overlapping with the press fitting portion.
- the first mounting lugs of the motor housing may be installed as far away as possible from the center of gravity of the electric compressor within the range of the press fitting portion.
- the first mounting lugs of the motor housing may be installed to be spaced at a second distance from each other on the outer surface of the motor housing.
- the first mounting lugs of the motor housing may be symmetrically installed to be collinear with each other on motor housing.
- the rear housing may include: one or more second mounting lugs installed on an outer surface of the rear housing, the mounting lugs being installed to be spaced at a third distance from the center of gravity of the electric compressor.
- the second mounting lugs may be installed as far away as possible from the center of gravity of the electric compressor.
- the mounting lugs of the rear housing may be installed to be spaced at a fourth distance from each other on the outer surface of the rear housing.
- the second mounting lugs of the rear housing may be symmetrically installed to be collinear with each other on the rear housing.
- the first mounting lugs of the motor housing may be formed to have a cylindrical shape
- the second mounting lugs of the rear housing may be formed to have a cylindrical shape
- FIG. 1 is a view illustrating an overall structure of a general electric compressor
- FIG. 2 is a front view illustrating an electric compressor according to an exemplary embodiment of the present invention.
- FIG. 3 is a perspective view illustrating a motor housing included in the electric compressor according to the exemplary embodiment of the present invention.
- FIG. 2 is a front view illustrating an electric compressor according to the present invention
- FIG. 3 is a perspective view illustrating a motor housing include in the electric compressor according to the present invention.
- an electric compressor 100 of the present invention includes a motor part configured to generate a rotating force, a control unit configured to control operation of the motor part, and a scroll compressing part in which a fixed scroll and a rotating scroll are embedded.
- a motor housing 200 surrounding a driving part configured to generate a rotating force of the electric compressor, a rear housing 300 surrounding the compressing part rotated due to a rotational driving force of the driving part to compress a refrigerant, and a center housing 400 installed between the motor housing 200 and the rear housing 300 are formed outside the electric compressor 100 .
- the electric compressor 100 optimizes positions of mounting lugs 220 and 320 installed in the motor housing 200 and the rear housing 300 to minimize an amount of vibrations transmitted to a vehicle body.
- a rotating force M is generated around a center of gravity of the electric compressor due to a gas force of the refrigerant in the compressing part.
- forces F 1 and F 2 at lower ends of the mounting lugs 220 and 320 are calculated by dividing a rotating force by distances from the center of gravity of the electric compressor to the lower ends of the mounting lugs 220 and 320 , in order to minimize magnitudes of vibration at the lower ends of the mounting lugs 220 and 320 , magnitudes of the forces applied to the mounting lugs 220 and 320 should be minimized.
- the electric compressor needs to be designed so that the distances from the center of gravity M to the lower ends of the mounting lugs 220 and 320 are maximized.
- the motor housing 200 surrounds the driving part configured to supply a rotating force of the electric compressor 100 .
- the motor housing 200 is formed to have a hollow shape, and four to eight ribs 210 are formed on an inner circumferential surface of the motor housing 200 along a circumference of the motor housing 200 .
- the plurality of ribs 210 are formed on the inner circumferential surface of motor housing 200 to accommodate components such as a motor therein and also prevent deformation of the center housing 400 .
- one or more mounting lugs 220 of the motor housing are mounted on an outer surface of the motor housing 200 .
- the mounting lugs 220 of the motor housing 200 are installed to be spaced a gap from the center of gravity M of the electric compressor 100 within a range of a motor stator press fitting portion 230 , and installing the mounting lugs 220 of the motor housing as far away as possible from the center of gravity M of the electric compressor within the range of the motor stator press fitting portion 230 is effective.
- the mounting lugs 220 of the motor housing 200 are installed to overlap with the motor stator press fitting portion 230 .
- the mounting lugs 220 of the motor housing are installed within the range of the motor stator press fitting portion 230 so as to obtain a secondary effect in that a motor stator is prevented from being separated therefrom.
- the mounting lugs 220 of the motor housing are installed to be spaced a gap from each other on the outer surface of the motor housing 200 .
- the mounting lugs 220 of the motor housing are symmetrically installed to be collinear with each other on the motor housing 200 .
- the mounting lugs 220 of the motor housing 200 are formed to have a cylindrical shape, but the mounting lugs 220 of the motor housing 200 may be variously changed according to an environment and a purpose.
- the rear housing 300 is rotated due to a rotational driving force of the driving part to surround the compressing part configured to compress the refrigerant.
- One or more mounting lugs 320 of the rear housing are installed on an outer surface of the rear housing 300 .
- the mounting lugs 320 of the rear housing are installed to be spaced a gap from the center of gravity M of the electric compressor. Installing the mounting lugs 320 of the rear housing as far away as possible from the center of gravity M of the electric compressor is effective.
- the mounting lugs 320 of the rear housing are installed to be spaced a gap from each other on the outer surface of the rear housing 300 .
- the mounting lugs 320 of the rear housing are symmetrically formed to be collinear with each other on the rear housing 300 .
- hindrance between the mounting lug of the rear housing and a discharge port may occur according to a position of the discharge port.
- One of the mounting lugs 320 of the rear housing may move toward the center of gravity M of the electric compressor.
- the center housing 400 is installed between the motor housing 200 and the rear housing 300 .
- the center housing 400 is formed to have a hollow shape, and four to eight grooves are formed along a circumference of an outer surface of the center housing 400 .
- the center housing 400 is installed between the motor housing 200 and the rear housing 300 to improve a coupling force of the motor housing 200 and also to minimize deformation of the center housing 400 .
- the center housing 400 in which the plurality of grooves are formed is installed at one side of the motor housing 200 in which the mounting lugs 220 are installed.
- the rear housing 300 is assembled with one side of the center housing 400 to completely assemble the electric compressor 100 .
- an assembly order of the electric compressor may be different from the above described order.
- An electric compressor according to the present invention has effects in that an amount of vibrations transmitted to a vehicle body can be minimized and a level of driving quietness required as an eco-friendly vehicle can be secured by optimizing a position of a mounting lug of a medium electric compressor.
Abstract
Description
- This application claims priority to and the benefit of Korean Patent Application No. 10-2018-0149816, filed on Nov. 28, 2018, the disclosure of which is incorporated herein by reference in its entirety.
- The present invention relates to an electric compressor.
- Generally, various types of compressors which serve to compress refrigerants in vehicle cooling systems have been developed.
- Recently, electric compressors are actively being developed. The electric compressor is divided into a driving part, a compressing part, and a control unit.
- In this case, the driving part includes a driving part housing forming an exterior thereof and a stator and rotor which are installed around the same shaft in the driving part housing.
- The compressing part includes a compressing part housing forming an exterior thereof and coupled to a rear end of the driving part housing and rotating and fixed scrolls which are mounted to relatively rotate in the compressing part housing.
- The control unit includes a cover housing forming an exterior thereof and coupled to a front end of the driving part housing and includes a printed circuit board (PCB), various driving circuits, and elements which are mounted in the cover housing.
- In a case in which a refrigerant is compressed by the electric compressor, external power is applied to the control unit. In this case, the control unit transmits an operating signal to the driving part.
- When the operating signal is transmitted to the driving part, an electromagnet type stator press-fitted into an inner circumferential surface of the driving part housing is excited to have magnetic properties, and accordingly, the driving part rotates a rotor at a high speed using an electromagnetic interaction with the rotor.
- In this case, when a rotating shaft of the driving part rotates at a high speed, the rotating scroll of the compressing part coupled to a rear end of the rotating shaft is synchronized with the rotation of the rotating shaft and rotated at a high speed. The compressing part interacts with the fixed scroll matched with the rotating scroll in a state in which the rotating scroll faces the fixed scroll to compress the refrigerant from an outer circumference of a scroll to a central portion of the scroll at a high pressure, wherein the refrigerant flows from the driving part to the compressing part. A compressing operation of the refrigerant is completed through a series of processes.
- As illustrated in
FIG. 1 , a conventional electric compressor includes amotor part 10, acontrol unit 20, and ascroll compressing part 30. - The
motor part 10 generates a rotating force. Thecontrol unit 20 controls operation of themotor part 10. A fixed scroll 31 and a rotating scroll 32 are embedded in thescroll compressing part 30. - The
scroll compressing part 30 includes one ormore mounting lugs 33 which fix the compressor to a vehicle body so as to reduce amounts of vibrations and noises generated when the rotating scroll 32 operates. In the conventional electric compressor, the mounting lugs are installed on an outer circumferential surface of thescroll compressing part 30 to reduce the amount of vibrations. - However, a total force between the fixed scroll 31 and the rotating scroll 32 is designed to be zero, and thus it is difficult to consider the
scroll compressing part 30 as a major vibration source. - In addition, as illustrated in
FIG. 1 , in a case in which the number of the mounting lugs is designed to be six, since a weight of an electric compressor is increased and a time period for which the electric compressor is installed in a vehicle is also increased, there is a problem in that productivity is lowered. - The present invention is directed to providing an electric compressor capable of minimizing an amount of vibrations transmitted to a vehicle body by optimizing a position of a mounting lug of a medium electric compressor.
- According to exemplary embodiments of the present invention, an electric compressor includes: a driving part being a driving source configured to generate a rotating force of the electric compressor, the driving part including a stator; a motor housing surrounding the driving part, the motor housing including: one or more first mounting lugs installed on an outer surface of the motor housing; and a press fitting portion formed on an inner surface of the motor housing, the stator of the driving part is press fitted into the press fitting portion; a rear housing surrounding a compressing part configured to rotate due to a rotational driving force generated by the driving part so as to compress a refrigerant; and a center housing installed between the motor housing and the rear housing, wherein the first mounting lugs are installed spaced at a first distance from a center of gravity of the electric compressor and overlapping with the press fitting portion.
- The first mounting lugs of the motor housing may be installed as far away as possible from the center of gravity of the electric compressor within the range of the press fitting portion.
- The first mounting lugs of the motor housing may be installed to be spaced at a second distance from each other on the outer surface of the motor housing.
- The first mounting lugs of the motor housing may be symmetrically installed to be collinear with each other on motor housing.
- The rear housing may include: one or more second mounting lugs installed on an outer surface of the rear housing, the mounting lugs being installed to be spaced at a third distance from the center of gravity of the electric compressor.
- The second mounting lugs may be installed as far away as possible from the center of gravity of the electric compressor.
- The mounting lugs of the rear housing may be installed to be spaced at a fourth distance from each other on the outer surface of the rear housing.
- The second mounting lugs of the rear housing may be symmetrically installed to be collinear with each other on the rear housing.
- The first mounting lugs of the motor housing may be formed to have a cylindrical shape, and the second mounting lugs of the rear housing may be formed to have a cylindrical shape.
-
FIG. 1 is a view illustrating an overall structure of a general electric compressor; -
FIG. 2 is a front view illustrating an electric compressor according to an exemplary embodiment of the present invention; and -
FIG. 3 is a perspective view illustrating a motor housing included in the electric compressor according to the exemplary embodiment of the present invention. - Advantages and features of the present invention and methods of achieving the same will be clearly understood with reference to the following embodiments and the accompanying drawings. However, the present invention is not limited to the embodiments to be disclosed below and may be implemented in various different forms. The embodiments are provided in order to fully explain the present invention and fully explain the scope of the present invention for those skilled in the art. The scope of the present invention is only defined by the appended claims. Meanwhile, the terms used herein are provided only to describe the embodiments of the present invention and not for purposes of limitation. Unless the context clearly indicates otherwise, the singular forms include the plural forms. It will be understood that the terms “comprise” or “comprising,” when used herein, specify some stated components, steps, operations and/or elements, but do not preclude the presence or addition of one or more other components, steps, operations and/or elements.
- Hereinafter, embodiments of the present invention will be described with reference to accompanying drawings in detail.
FIG. 2 is a front view illustrating an electric compressor according to the present invention, andFIG. 3 is a perspective view illustrating a motor housing include in the electric compressor according to the present invention. - As illustrated in
FIG. 2 , anelectric compressor 100 of the present invention includes a motor part configured to generate a rotating force, a control unit configured to control operation of the motor part, and a scroll compressing part in which a fixed scroll and a rotating scroll are embedded. - A
motor housing 200 surrounding a driving part configured to generate a rotating force of the electric compressor, arear housing 300 surrounding the compressing part rotated due to a rotational driving force of the driving part to compress a refrigerant, and acenter housing 400 installed between themotor housing 200 and therear housing 300 are formed outside theelectric compressor 100. - The
electric compressor 100 according to the present invention optimizes positions ofmounting lugs motor housing 200 and therear housing 300 to minimize an amount of vibrations transmitted to a vehicle body. - More specifically, in the
electric compressor 100, a rotating force M is generated around a center of gravity of the electric compressor due to a gas force of the refrigerant in the compressing part. - Since forces F1 and F2 at lower ends of the
mounting lugs mounting lugs mounting lugs mounting lugs mounting lugs - The
motor housing 200 surrounds the driving part configured to supply a rotating force of theelectric compressor 100. Themotor housing 200 is formed to have a hollow shape, and four to eightribs 210 are formed on an inner circumferential surface of themotor housing 200 along a circumference of themotor housing 200. - That is, in the
motor housing 200, the plurality ofribs 210 are formed on the inner circumferential surface ofmotor housing 200 to accommodate components such as a motor therein and also prevent deformation of thecenter housing 400. - In addition, one or
more mounting lugs 220 of the motor housing are mounted on an outer surface of themotor housing 200. - In this case, the
mounting lugs 220 of themotor housing 200 are installed to be spaced a gap from the center of gravity M of theelectric compressor 100 within a range of a motor statorpress fitting portion 230, and installing themounting lugs 220 of the motor housing as far away as possible from the center of gravity M of the electric compressor within the range of the motor statorpress fitting portion 230 is effective. In other words, themounting lugs 220 of themotor housing 200 are installed to overlap with the motor statorpress fitting portion 230. - In this case, the
mounting lugs 220 of the motor housing are installed within the range of the motor statorpress fitting portion 230 so as to obtain a secondary effect in that a motor stator is prevented from being separated therefrom. - That is, when the motor stator press
fitting portion 230 is strengthened by positioning themounting lugs 220 of the motor housing on the motor statorpress fitting portion 230 of themotor housing 200, the motor stator is prevented from being separated therefrom. - In addition, the
mounting lugs 220 of the motor housing are installed to be spaced a gap from each other on the outer surface of themotor housing 200. In the present invention, the mountinglugs 220 of the motor housing are symmetrically installed to be collinear with each other on themotor housing 200. - In the present invention, the mounting
lugs 220 of themotor housing 200 are formed to have a cylindrical shape, but the mounting lugs 220 of themotor housing 200 may be variously changed according to an environment and a purpose. - The
rear housing 300 is rotated due to a rotational driving force of the driving part to surround the compressing part configured to compress the refrigerant. - One or more mounting lugs 320 of the rear housing are installed on an outer surface of the
rear housing 300. - In this case, the mounting
lugs 320 of the rear housing are installed to be spaced a gap from the center of gravity M of the electric compressor. Installing the mountinglugs 320 of the rear housing as far away as possible from the center of gravity M of the electric compressor is effective. - The mounting lugs 320 of the rear housing are installed to be spaced a gap from each other on the outer surface of the
rear housing 300. In the present invention, the mountinglugs 320 of the rear housing are symmetrically formed to be collinear with each other on therear housing 300. - In this case, in the mounting lugs 320 of the rear housing, hindrance between the mounting lug of the rear housing and a discharge port may occur according to a position of the discharge port. One of the mounting
lugs 320 of the rear housing may move toward the center of gravity M of the electric compressor. - The
center housing 400 is installed between themotor housing 200 and therear housing 300. Thecenter housing 400 is formed to have a hollow shape, and four to eight grooves are formed along a circumference of an outer surface of thecenter housing 400. - That is, the
center housing 400 is installed between themotor housing 200 and therear housing 300 to improve a coupling force of themotor housing 200 and also to minimize deformation of thecenter housing 400. - The embodiment of the electric compressor of the present invention will be described below.
- First, the
center housing 400 in which the plurality of grooves are formed is installed at one side of themotor housing 200 in which the mounting lugs 220 are installed. - Next, the
rear housing 300 is assembled with one side of thecenter housing 400 to completely assemble theelectric compressor 100. - Here, an assembly order of the electric compressor may be different from the above described order.
- An electric compressor according to the present invention has effects in that an amount of vibrations transmitted to a vehicle body can be minimized and a level of driving quietness required as an eco-friendly vehicle can be secured by optimizing a position of a mounting lug of a medium electric compressor.
- The above description is only an example describing the technological spirit of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the present invention by those skilled in the art.
- Therefore, the embodiments disclosed above and in the accompanying drawings should be considered in a descriptive sense only and not for limiting the technological scope of the present invention. The scope of rights of the present invention is not limited to the embodiments and the accompanying drawings. The scope of protection of the present invention should be interpreted by the appended claims and encompass all equivalents falling within the scope of rights of the appended claims.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020180149816A KR20200063729A (en) | 2018-11-28 | 2018-11-28 | ElECTRIC COMPRESSOR |
KR10-2018-0149816 | 2018-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20200191159A1 true US20200191159A1 (en) | 2020-06-18 |
Family
ID=71073472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/698,205 Abandoned US20200191159A1 (en) | 2018-11-28 | 2019-11-27 | Electric compressor |
Country Status (2)
Country | Link |
---|---|
US (1) | US20200191159A1 (en) |
KR (1) | KR20200063729A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102355928B1 (en) | 2021-04-14 | 2022-02-09 | 두원중공업(주) | Electric compressor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130141272A (en) | 2012-06-15 | 2013-12-26 | 한라비스테온공조 주식회사 | Electric compressor |
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2018
- 2018-11-28 KR KR1020180149816A patent/KR20200063729A/en not_active Application Discontinuation
-
2019
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