US20130323097A1 - Motor-driven compressor - Google Patents
Motor-driven compressor Download PDFInfo
- Publication number
- US20130323097A1 US20130323097A1 US13/898,985 US201313898985A US2013323097A1 US 20130323097 A1 US20130323097 A1 US 20130323097A1 US 201313898985 A US201313898985 A US 201313898985A US 2013323097 A1 US2013323097 A1 US 2013323097A1
- Authority
- US
- United States
- Prior art keywords
- housing
- motor
- cover
- sealing member
- driven compressor
- 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
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- 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
- H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
- H02K11/014—Shields associated with stationary parts, e.g. stator cores
- H02K11/0141—Shields associated with casings, enclosures or brackets
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- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
-
- 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
- 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
- F04C23/008—Hermetic 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
-
- 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
- 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
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/047—Cooling of electronic devices installed inside the pump housing, e.g. inverters
-
- 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
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- 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
- F04C2240/808—Electronic circuits (e.g. inverters) installed inside the machine
Definitions
- the present invention relates to a motor-driven compressor.
- a motor-driven compressor includes a housing made of a metal material, which accommodates a compression portion that compresses refrigerant and an electric motor that drives the compression portion.
- a cover is attached to the housing. The cover defines an accommodation space in which a motor drive circuit for driving the electric motor is accommodated.
- a sealing member is located between the housing and the cover. The sealing member prevents wastes or water from entering the accommodation space through an interface between the housing and the cover.
- a body of an inverter case (cover) is made of plastic by insert molding, and metal plating is performed on the inner side thereof. Since the metal plating is performed on the inner side of the body of the inverter case, the noise from the outside is intercepted by the metal plating so that the noise is restricted from entering the accommodation space through the plastic body. Further, since the noise from the motor drive circuit is intercepted by the metal plating, outside leakage of the noise through the body made of plastic is reduced.
- Heat is generated from the motor drive circuit, and the heat generated from the motor drive circuit is transferred to the cover.
- the cover is made of plastic as in the compressor as disclosed in the above publication, the cover is less likely to dissipate heat compared with a cover made of a metal material.
- the sealing member is located between the cover and the housing, the heat transferred from the motor drive circuit to the cover is less likely to be dissipated to the housing. As a result, cooling performance of the motor drive circuit accommodated in the accommodation space is reduced.
- a motor-driven compressor includes a housing made of a metal material; a compression portion and an electric motor accommodated in the housing; a cover attached to the housing; a motor drive circuit accommodated in an accommodation space defined by the housing and the cover; and an elastic sealing member located between the housing and the cover.
- the cover is configured by a plastic portion and a shield made of a metal material that intercepts electromagnetic noise.
- the motor drive circuit drives the electric motor.
- the shield includes an extended portion that extends toward the housing and is arranged inside the sealing member. The extended portion is in contact with the housing.
- FIG. 1A is a cross-sectional view, with a part cut away, showing a motor-driven compressor according to one embodiment
- FIG. 1B is a partially enlarged cross-sectional view showing the cover and its surrounding of the motor-driven compressor of FIG. 1A ;
- FIG. 2 is a cross-sectional view taken along line 2 - 2 of FIG. 1B ;
- FIG. 3 is a partially enlarged cross-sectional view showing a cover and its surrounding according to another embodiment.
- FIGS. 1A , 1 B, and 2 a motor-driven compressor according to one embodiment will be described with reference to FIGS. 1A , 1 B, and 2 .
- a motor-driven compressor 10 has a housing H.
- the housing H includes a discharge housing member 11 made of aluminum (made of a metal material) and a suction housing member 12 made of aluminum (made of a metal material) joined to the discharge housing member 11 .
- the discharge housing member 11 is shaped as a cylinder with a closed upper portion.
- the suction housing member 12 is shaped as a cylinder with a closed bottom portion.
- a suction port (not shown) is formed in a peripheral wall of the suction housing member 12 and the suction port is connected to an external refrigerant circuit (not shown).
- a discharge port 14 is formed in the discharge housing member 11 , and the discharge port 14 is connected to the external refrigerant circuit.
- the suction housing member 12 accommodates a compression portion 15 for compressing rerigerant and an electric motor 16 for driving the compression portion 15 .
- the compression portion 15 includes a fixed scroll, which is fixed to the suction housing member 12 , and an orbiting scroll, which is arranged to face the fixed scroll.
- a stator 17 is fixed to the inner circumferential surface of the suction housing member 12 .
- the stator 17 includes a stator core 17 a fixed to the inner circumferential surface of the suction housing member 12 , and a coil 17 b wound about each of teeth (not shown) of the stator core 17 a.
- a rotary shaft 19 is rotationally supported in the suction housing member 12 in a state in which the rotary shaft 19 is inserted through the stator 17 .
- the rotary shaft 19 is secured to a rotor 18 .
- an annular extension 12 f is formed in a bottom wall 12 a of the suction housing member 12 .
- the extension 12 f extends outward (rightward as viewed in FIG. 1B ) from the whole peripheral circumference of the bottom wall 12 a in a direction in which the axial center L of the rotary shaft 19 extends (axial direction).
- a cylindrical cover 41 with a closed end is attached to an opening end of the extension 12 f .
- accommodation space 41 a is defined by the bottom wall 12 a, the extension 12 f, and the cover 41 .
- the accommodation space 41 a accommodates a motor drive circuit 40 , which drives the electric motor 16 .
- the motor drive circuit 40 is attached to the bottom wall 12 a in the accommodation space 41 a . Accordingly, in the present embodiment, the compression portion 15 , the electric motor 16 , and the motor drive circuit 40 are arranged in this order in the axial direction of the rotary shaft 19 .
- the cover 41 is formed by a plastic portion 42 and a shield 43 made of aluminum (made of a metal material).
- the plastic portion 42 is shaped as a cylinder with a closed end and configures the body of the cover 41 .
- the cover 41 is molded by a plastic material using the shield 43 as a metal core. Accordingly, the cover 41 is mainly formed from a plastic material.
- the shield 43 is arranged inside the plastic portion 42 .
- the plastic portion 42 includes an annular outer cylindrical portion 42 a, an outer lid portion 42 b, and an annular outer connector portion 42 c.
- the outer cylindrical portion 42 a extends in the axial direction of the rotary shaft 19 .
- the outer lid portion 42 b is continuous with the outer cylindrical portion 42 a and extends in a direction perpendicular to a direction in which the outer cylindrical portion 42 a extends.
- the outer connector portion 42 c is continuous with the outer lid portion 42 b and extends in the axial direction of the rotary shaft 19 .
- the shield 43 includes an annular inner cylindrical portion 43 a, an inner lid portion 43 b, and an annular inner connector portion 43 c.
- the inner cylindrical portion 43 a extends in the axial direction of the rotary shaft 19 .
- the inner lid portion 43 b is continuous with the inner cylindrical portion 43 a and extends in a direction perpendicular to a direction in which the inner cylindrical portion 43 a extends.
- the inner connector portion 43 c is continuous with the inner lid portion 43 b and extends in the axial direction of the rotary shaft 19 .
- the inner cylindrical portion 43 a extends along an inner peripheral surface of the outer cylindrical portion 42 a of the plastic portion 42 .
- the inner lid portion 43 b extends along an inner bottom surface of the outer lid portion 42 b of the plastic portion 42 .
- the inner connector portion 43 c extends along an inner peripheral surface of the outer connector portion 42 c of the plastic portion 42 . Accordingly, the shield 43 extends over the whole inner surface of the plastic portion 42 , and intercepts noise (electromagnetic noise) through the plastic portion 42 .
- a holding portion 45 made of a plastic material is integrally formed with the inner connector portion 43 c.
- a metal terminal 46 that is electrically connected to an external power supply (not shown) is held by the holding portion 45 .
- the metal terminal 46 is electrically connected to the motor drive circuit 40 .
- a sealing member 51 made of an elastic rubber material is located between the opening end of the extension 12 f and the opening end of the outer cylindrical portion 42 a.
- the sealing member 51 is annular.
- the inner cylindrical portion 43 a of the shield 43 extends toward the bottom wall 12 a (suction housing member 12 ) and is arranged inside the sealing member 51 .
- the inner cylindrical portion 43 a corresponds to an extended portion arranged inside the sealing member 51 , and the extended portion is provided in the shield 43 .
- a tip end 431 a of the inner cylindrical portion 43 a protrudes further toward the bottom wall 12 a than an end surface 511 of the sealing member 51 facing the extension 12 f does.
- a portion in the vicinity of the tip end 431 a in an outer peripheral surface 432 a of the inner cylindrical portion 43 a contacts an inner peripheral surface of the extension 12 f.
- the inner cylindrical portion 43 a is formed such that it contacts a whole inner peripheral surface 51 a of the sealing member 51 .
- the outer peripheral surface 432 a of the inner cylindrical portion 43 a contacts the inner peripheral surface 51 a of the sealing member 51 .
- the sealing member 51 is installed on a peripheral portion of the inner cylindrical portion 43 a by being elastically deformed radially outward.
- the outer peripheral surface 432 a of the inner cylindrical portion 43 a contacts the inner peripheral surface 51 a of the sealing member 51 so that the sealing member 51 is arranged to be in close contact with and along the outer peripheral surface 432 a of the inner cylindrical portion 43 a , and the sealing member 51 is maintained to be shaped to conform to a peripheral edge of the accommodation space 41 a .
- the inner diameter of the sealing member 51 prior to the elastic deformation is smaller than the outer diameter of the inner cylindrical portion 43 a.
- the tip end 431 a of the inner cylindrical portion 43 a protrudes further toward the bottom wall 12 a than the end surface 511 of the sealing member 51 facing the extension 12 f does. Accordingly, noise from the outside through the sealing member 51 is intercepted by the inner cylindrical portion 43 a and noise from the motor drive circuit 40 toward the sealing member 51 is intercepted by the inner cylindrical portion 43 a as well. Accordingly, noise leakage through the sealing member 51 is reduced. Further, the portion in the vicinity of the tip end 431 a in the outer peripheral surface 432 a of the inner cylindrical portion 43 a contacts the inner peripheral surface of the extension 12 f. Thereby, heat transferred from the motor drive circuit 40 to the shield 43 is dissipated to the housing H through the inner cylindrical portion 43 a.
- the inner cylindrical portion 43 a of the shield 43 extends toward the bottom wall 12 a to be arranged inside the sealing member 51 .
- the noise from the outside through the sealing member 51 is easily intercepted by the inner cylindrical portion 43 a and the noise from the motor drive circuit 40 toward the sealing member 51 is easily intercepted by the inner cylindrical portion 43 a as well. Accordingly, the noise leakage through the sealing member 51 is reduced.
- the portion in the vicinity of the tip end 431 a in the outer peripheral surface 432 a of the inner cylindrical portion 43 a is in contact with the inner peripheral surface of the extension 12 f. Accordingly, the heat transferred from the motor drive circuit 40 to the shield 43 is dissipated to the housing H through the inner cylindrical portion 43 a. This improves the cooling performance of the motor drive circuit 40 accommodated in the accommodation space 41 a.
- the inner cylindrical portion 43 a is provided over the whole inner peripheral surface 51 a of the sealing member 51 .
- noise leakage through the sealing member 51 is easily reduced and the heat transferred from the motor drive circuit 40 to the shield 43 is easily dissipated to the housing H through the inner cylindrical portion 43 a.
- the shield 43 has the inner cylindrical portion 43 a , which corresponds to the extended portion. Thereby, in addition to reduction of the noise leakage through the plastic portion 42 , the noise leakage via the sealing member 51 is also reduced. Thus, it is simpler to provide the extended portion in the shield 43 than in the housing H.
- the outer peripheral surface 432 a of the inner cylindrical portion 43 a contacts the inner peripheral surface 51 a of the sealing member 51 . Accordingly, the outer peripheral surface 432 a of the inner cylindrical portion 43 a contacts the inner peripheral surface 51 a of the sealing member 51 so that the sealing member 51 is arranged to be in close contact with and along the outer peripheral surface 432 a of the inner cylindrical portion 43 a and the sealing member 51 is maintained to be shaped to conform to the peripheral edge of the accommodation space 41 a. Therefore, a sufficient seal between the opening end of the extension 12 f and the opening end of the outer cylindrical portion 42 a is easily ensured.
- the heat transferred to the shield 43 is dissipated to the housing H through the inner cylindrical portion 43 a. Accordingly, electronic parts as heating elements configuring the motor drive circuit 40 are arranged in the vicinity of the cover 41 in the accommodation space 41 a. Therefore, flexibility of a layout in the electronic parts is improved.
- the inner cylindrical portion 43 a corresponding to the extended portion is arranged inside the sealing member 51 . Since the extended portion is not arranged outside the sealing member 51 , the shape on the outer peripheral side of the housing H and the shape on the outer peripheral side of the cover 41 are not complicated in the motor-driven compressor 10 .
- a portion in the vicinity of the tip end 431 a of the inner cylindrical portion 43 a may have a spring property.
- a flexural portion 61 and a curved portion 62 are formed in a portion in the vicinity of the tip end 431 a of the inner cylindrical portion 43 a.
- the flexural portion 61 is flexed inward in the inner cylindrical portion 43 a.
- the curved portion 62 is a portion closer to the tip end 431 a of the inner cylindrical portion 43 a than the flexural portion 61 , and is arcuately curved to bulges outward of the inner cylindrical portion 43 a.
- the portion in the vicinity of the tip end 431 a of the inner cylindrical portion 43 a curves inward of the inner cylindrical portion 43 a at the flexural portion 61 as a flexural point. Accordingly, when attaching the cover 41 to the suction housing member 12 , the portion in the vicinity of the tip end 431 a of the inner cylindrical portion 43 a curves to compensate for dimensional tolerance of the suction housing member 12 and the cover 41 . This allows the inner cylindrical portion 43 a to readily contact the extension 12 f. Also, the cover 41 is easily attached to the suction housing member 12 .
- a cylindrical member corresponding to the extended portion may be provided separate from the cover 41 .
- a cylindrical member may be attached to the inner cylindrical portion 43 a so that the cylindrical member corresponding to the extended portion may be provided on the cover 41 .
- the tip end 431 a of the inner cylindrical portion 43 a in a direction in which the tip end 431 a extends may protrude to the same position as the end surface 511 of the sealing member 51 , which faces the extension 12 f. That is, the inner cylindrical portion 43 a may extend to a position at which the inner cylindrical portion 43 a covers at least the inner peripheral surface 51 a of the sealing member 51 .
- the inner cylindrical portion 43 a may be formed on a part of the inner peripheral surface 51 a of the sealing member 51 .
- the inner cylindrical portion 43 a may be formed on any part that is susceptible to the noise in the inner peripheral surface 51 a of the sealing member 51 .
- the inner cylindrical portion 43 a need not contact the inner peripheral surface 51 a of the sealing member 51 .
- the motor drive circuit 40 may be attached to the cover 41 in the accommodation space 41 a.
- the cover 41 may be attached to the outer peripheral surface of the suction housing member 12 , for example.
- the cover 41 is molded by the plastic material using the shield 43 as a metal core in the above illustrated embodiments, the cover 41 is not limited to this.
- the cover 41 may be formed by other methods.
- an engaging projection may be provided on the plastic portion 42
- an engaging hole with which the engaging projection engages may be provided in the shield 43 .
- the cover 41 may be formed by assembing the plastic portion 42 and the shield 43 together through engagement between the engaging projection and the engaging hole.
- the shield 43 may be formed of a conductive material such as iron and copper.
- the compression portion 15 , the electric motor 16 , and the motor drive circuit 40 are arranged in this order in the axial direction of the rotary shaft 19 in the above illustrated embodiments, the order of the arrangement is not limited to this.
- the motor drive circuit, the compression portion, and the electric motor may be arranged in this order in the axial direction of the rotary shaft 19 .
- the compression portion 15 may be of a piston type or of a vane type, for example.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A motor-driven compressor includes a housing made of a metal material, a compression portion, an electric motor, and a cover. The compression portion and the electric motor are accommodated in the housing, and the cover is attached to the housing. The cover is formed by a plastic portion and a shield made of a metal material that intercepts electromagnetic noise. A motor drive circuit for driving the electric motor is accommodated in an accommodation space defined by the housing and the cover. An elastic sealing member is located between the housing and the cover. The shield includes an extended portion that extends toward the housing and is arranged inside the sealing member. The extended portion is in contact with the housing.
Description
- The present invention relates to a motor-driven compressor.
- A motor-driven compressor includes a housing made of a metal material, which accommodates a compression portion that compresses refrigerant and an electric motor that drives the compression portion. A cover is attached to the housing. The cover defines an accommodation space in which a motor drive circuit for driving the electric motor is accommodated. A sealing member is located between the housing and the cover. The sealing member prevents wastes or water from entering the accommodation space through an interface between the housing and the cover.
- When the cover is made of a metal material, the weight of the motor-driven compressor itself becomes heavy. In this regard, a cover made of plastic has been proposed to reduce the weight of the cover to reduce the weight of the motor-driven compressor itself. When a cover made of plastic is used, however, noise from the outside of the motor-driven compressor is likely to enter the motor drive circuit through the cover. Also, the noise from the motor drive circuit is likely to leak outside through the cover.
- Accordingly, in the compressor disclosed in Japanese Laid-Open Patent Publication No. 2002-155862, a body of an inverter case (cover) is made of plastic by insert molding, and metal plating is performed on the inner side thereof. Since the metal plating is performed on the inner side of the body of the inverter case, the noise from the outside is intercepted by the metal plating so that the noise is restricted from entering the accommodation space through the plastic body. Further, since the noise from the motor drive circuit is intercepted by the metal plating, outside leakage of the noise through the body made of plastic is reduced.
- In the compressor disclosed in the above publication, however, even if the inverter case (cover) with the body made of plastic in which the metal plating is performed on the inner side of the body is adopted, noise from the outside is likely to enter the accommodation space through the sealing member to flow through the motor drive circuit. Also, the noise from the motor drive circuit is likely to leak outside through the sealing member.
- Heat is generated from the motor drive circuit, and the heat generated from the motor drive circuit is transferred to the cover. If the cover is made of plastic as in the compressor as disclosed in the above publication, the cover is less likely to dissipate heat compared with a cover made of a metal material. Further, in particular, since the sealing member is located between the cover and the housing, the heat transferred from the motor drive circuit to the cover is less likely to be dissipated to the housing. As a result, cooling performance of the motor drive circuit accommodated in the accommodation space is reduced.
- It is an object of the present invention to provide a motor-driven compressor that reduces noise leakage though a sealing member and has an excellent cooling performance for a motor drive circuit.
- To achieve the foregoing object and in accordance with one aspect of the present invention, a motor-driven compressor includes a housing made of a metal material; a compression portion and an electric motor accommodated in the housing; a cover attached to the housing; a motor drive circuit accommodated in an accommodation space defined by the housing and the cover; and an elastic sealing member located between the housing and the cover. The cover is configured by a plastic portion and a shield made of a metal material that intercepts electromagnetic noise. The motor drive circuit drives the electric motor. The shield includes an extended portion that extends toward the housing and is arranged inside the sealing member. The extended portion is in contact with the housing.
- Other aspects and advantages of the present invention will become apparent from the following description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the invention.
- The invention, together with objects and advantages thereof, may best be understood by reference to the following description of the presently preferred embodiments together with the accompanying drawings in which:
-
FIG. 1A is a cross-sectional view, with a part cut away, showing a motor-driven compressor according to one embodiment; -
FIG. 1B is a partially enlarged cross-sectional view showing the cover and its surrounding of the motor-driven compressor ofFIG. 1A ; -
FIG. 2 is a cross-sectional view taken along line 2-2 ofFIG. 1B ; and -
FIG. 3 is a partially enlarged cross-sectional view showing a cover and its surrounding according to another embodiment. - Hereinafter, a motor-driven compressor according to one embodiment will be described with reference to
FIGS. 1A , 1B, and 2. - As shown in
FIG. 1A , a motor-drivencompressor 10 has a housing H. The housing H includes adischarge housing member 11 made of aluminum (made of a metal material) and asuction housing member 12 made of aluminum (made of a metal material) joined to thedischarge housing member 11. Thedischarge housing member 11 is shaped as a cylinder with a closed upper portion. Thesuction housing member 12 is shaped as a cylinder with a closed bottom portion. A suction port (not shown) is formed in a peripheral wall of thesuction housing member 12 and the suction port is connected to an external refrigerant circuit (not shown). Adischarge port 14 is formed in thedischarge housing member 11, and thedischarge port 14 is connected to the external refrigerant circuit. Thesuction housing member 12 accommodates acompression portion 15 for compressing rerigerant and anelectric motor 16 for driving thecompression portion 15. Although not particularly illustrated in the present embodiment, thecompression portion 15 includes a fixed scroll, which is fixed to thesuction housing member 12, and an orbiting scroll, which is arranged to face the fixed scroll. - A
stator 17 is fixed to the inner circumferential surface of thesuction housing member 12. Thestator 17 includes a stator core 17 a fixed to the inner circumferential surface of thesuction housing member 12, and acoil 17 b wound about each of teeth (not shown) of the stator core 17 a. Arotary shaft 19 is rotationally supported in thesuction housing member 12 in a state in which therotary shaft 19 is inserted through thestator 17. Therotary shaft 19 is secured to arotor 18. - As shown in
FIG. 1B , anannular extension 12 f is formed in abottom wall 12 a of thesuction housing member 12. Theextension 12 f extends outward (rightward as viewed inFIG. 1B ) from the whole peripheral circumference of thebottom wall 12 a in a direction in which the axial center L of therotary shaft 19 extends (axial direction). Acylindrical cover 41 with a closed end is attached to an opening end of theextension 12 f. Further, accommodation space 41 a is defined by thebottom wall 12 a, theextension 12 f, and thecover 41. The accommodation space 41 a accommodates amotor drive circuit 40, which drives theelectric motor 16. Themotor drive circuit 40 is attached to thebottom wall 12 a in the accommodation space 41 a. Accordingly, in the present embodiment, thecompression portion 15, theelectric motor 16, and themotor drive circuit 40 are arranged in this order in the axial direction of therotary shaft 19. - The
cover 41 is formed by aplastic portion 42 and ashield 43 made of aluminum (made of a metal material). Theplastic portion 42 is shaped as a cylinder with a closed end and configures the body of thecover 41. Thecover 41 is molded by a plastic material using theshield 43 as a metal core. Accordingly, thecover 41 is mainly formed from a plastic material. Theshield 43 is arranged inside theplastic portion 42. - The
plastic portion 42 includes an annular outercylindrical portion 42 a, anouter lid portion 42 b, and an annularouter connector portion 42 c. The outercylindrical portion 42 a extends in the axial direction of therotary shaft 19. Theouter lid portion 42 b is continuous with the outercylindrical portion 42 a and extends in a direction perpendicular to a direction in which the outercylindrical portion 42 a extends. Theouter connector portion 42 c is continuous with theouter lid portion 42 b and extends in the axial direction of therotary shaft 19. - The
shield 43 includes an annular innercylindrical portion 43 a, aninner lid portion 43 b, and an annularinner connector portion 43 c. The innercylindrical portion 43 a extends in the axial direction of therotary shaft 19. Theinner lid portion 43 b is continuous with the innercylindrical portion 43 a and extends in a direction perpendicular to a direction in which the innercylindrical portion 43 a extends. Theinner connector portion 43 c is continuous with theinner lid portion 43 b and extends in the axial direction of therotary shaft 19. The innercylindrical portion 43 a extends along an inner peripheral surface of the outercylindrical portion 42 a of theplastic portion 42. Theinner lid portion 43 b extends along an inner bottom surface of theouter lid portion 42 b of theplastic portion 42. Theinner connector portion 43 c extends along an inner peripheral surface of theouter connector portion 42 c of theplastic portion 42. Accordingly, theshield 43 extends over the whole inner surface of theplastic portion 42, and intercepts noise (electromagnetic noise) through theplastic portion 42. - Inside the
inner connector portion 43 c, a holdingportion 45 made of a plastic material is integrally formed with theinner connector portion 43 c. Ametal terminal 46 that is electrically connected to an external power supply (not shown) is held by the holdingportion 45. Themetal terminal 46 is electrically connected to themotor drive circuit 40. - A sealing
member 51 made of an elastic rubber material is located between the opening end of theextension 12 f and the opening end of the outercylindrical portion 42 a. The sealingmember 51 is annular. Further, the innercylindrical portion 43 a of theshield 43 extends toward thebottom wall 12 a (suction housing member 12) and is arranged inside the sealingmember 51. Accordingly, in the present embodiment, the innercylindrical portion 43 a corresponds to an extended portion arranged inside the sealingmember 51, and the extended portion is provided in theshield 43. A tip end 431 a of the innercylindrical portion 43 a protrudes further toward thebottom wall 12 a than anend surface 511 of the sealingmember 51 facing theextension 12 f does. A portion in the vicinity of the tip end 431 a in an outerperipheral surface 432 a of the innercylindrical portion 43 a contacts an inner peripheral surface of theextension 12 f. - As shown in
FIG. 2 , the innercylindrical portion 43 a is formed such that it contacts a whole inner peripheral surface 51 a of the sealingmember 51. The outerperipheral surface 432 a of the innercylindrical portion 43 a contacts the inner peripheral surface 51 a of the sealingmember 51. The sealingmember 51 is installed on a peripheral portion of the innercylindrical portion 43 a by being elastically deformed radially outward. The outerperipheral surface 432 a of the innercylindrical portion 43 a contacts the inner peripheral surface 51 a of the sealingmember 51 so that the sealingmember 51 is arranged to be in close contact with and along the outerperipheral surface 432 a of the innercylindrical portion 43 a, and the sealingmember 51 is maintained to be shaped to conform to a peripheral edge of the accommodation space 41 a. The inner diameter of the sealingmember 51 prior to the elastic deformation is smaller than the outer diameter of the innercylindrical portion 43 a. - Next, an operation of the present embodiment will be described.
- The tip end 431 a of the inner
cylindrical portion 43 a protrudes further toward thebottom wall 12 a than theend surface 511 of the sealingmember 51 facing theextension 12 f does. Accordingly, noise from the outside through the sealingmember 51 is intercepted by the innercylindrical portion 43 a and noise from themotor drive circuit 40 toward the sealingmember 51 is intercepted by the innercylindrical portion 43 a as well. Accordingly, noise leakage through the sealingmember 51 is reduced. Further, the portion in the vicinity of the tip end 431 a in the outerperipheral surface 432 a of the innercylindrical portion 43 a contacts the inner peripheral surface of theextension 12 f. Thereby, heat transferred from themotor drive circuit 40 to theshield 43 is dissipated to the housing H through the innercylindrical portion 43 a. - The above described embodiment has the following advantages.
- (1) The inner
cylindrical portion 43 a of theshield 43 extends toward thebottom wall 12 a to be arranged inside the sealingmember 51. Thereby, in comparison to a case in which the innercylindrical portion 43 a is not arranged inside the sealingmember 51, the noise from the outside through the sealingmember 51 is easily intercepted by the innercylindrical portion 43 a and the noise from themotor drive circuit 40 toward the sealingmember 51 is easily intercepted by the innercylindrical portion 43 a as well. Accordingly, the noise leakage through the sealingmember 51 is reduced. Further, the portion in the vicinity of the tip end 431 a in the outerperipheral surface 432 a of the innercylindrical portion 43 a is in contact with the inner peripheral surface of theextension 12 f. Accordingly, the heat transferred from themotor drive circuit 40 to theshield 43 is dissipated to the housing H through the innercylindrical portion 43 a. This improves the cooling performance of themotor drive circuit 40 accommodated in the accommodation space 41 a. - (2) The inner
cylindrical portion 43 a is provided over the whole inner peripheral surface 51 a of the sealingmember 51. Thereby, in comparison to a case in which the innercylindrical portion 43 a is provided at a part of the inner peripheral surface 51 a of the sealingmember 51, noise leakage through the sealingmember 51 is easily reduced and the heat transferred from themotor drive circuit 40 to theshield 43 is easily dissipated to the housing H through the innercylindrical portion 43 a. - (3) The
shield 43 has the innercylindrical portion 43 a, which corresponds to the extended portion. Thereby, in addition to reduction of the noise leakage through theplastic portion 42, the noise leakage via the sealingmember 51 is also reduced. Thus, it is simpler to provide the extended portion in theshield 43 than in the housing H. - (4) The outer
peripheral surface 432 a of the innercylindrical portion 43 a contacts the inner peripheral surface 51 a of the sealingmember 51. Accordingly, the outerperipheral surface 432 a of the innercylindrical portion 43 a contacts the inner peripheral surface 51 a of the sealingmember 51 so that the sealingmember 51 is arranged to be in close contact with and along the outerperipheral surface 432 a of the innercylindrical portion 43 a and the sealingmember 51 is maintained to be shaped to conform to the peripheral edge of the accommodation space 41 a. Therefore, a sufficient seal between the opening end of theextension 12 f and the opening end of the outercylindrical portion 42 a is easily ensured. - (5) According to the present embodiment, the heat transferred to the
shield 43 is dissipated to the housing H through the innercylindrical portion 43 a. Accordingly, electronic parts as heating elements configuring themotor drive circuit 40 are arranged in the vicinity of thecover 41 in the accommodation space 41 a. Therefore, flexibility of a layout in the electronic parts is improved. - (6) The inner
cylindrical portion 43 a corresponding to the extended portion is arranged inside the sealingmember 51. Since the extended portion is not arranged outside the sealingmember 51, the shape on the outer peripheral side of the housing H and the shape on the outer peripheral side of thecover 41 are not complicated in the motor-drivencompressor 10. - The above-mentioned embodiments may be modified as follows.
- As shown in
FIG. 3 , a portion in the vicinity of the tip end 431 a of the innercylindrical portion 43 a may have a spring property. Aflexural portion 61 and acurved portion 62 are formed in a portion in the vicinity of the tip end 431 a of the innercylindrical portion 43 a. Theflexural portion 61 is flexed inward in the innercylindrical portion 43 a. Thecurved portion 62 is a portion closer to the tip end 431 a of the innercylindrical portion 43 a than theflexural portion 61, and is arcuately curved to bulges outward of the innercylindrical portion 43 a. When the outer side of thecurved portion 62 contacts the inner peripheral surface of theextension 12 f, the portion in the vicinity of the tip end 431 a of the innercylindrical portion 43 a curves inward of the innercylindrical portion 43 a at theflexural portion 61 as a flexural point. Accordingly, when attaching thecover 41 to thesuction housing member 12, the portion in the vicinity of the tip end 431 a of the innercylindrical portion 43 a curves to compensate for dimensional tolerance of thesuction housing member 12 and thecover 41. This allows the innercylindrical portion 43 a to readily contact theextension 12 f. Also, thecover 41 is easily attached to thesuction housing member 12. - For example, a cylindrical member corresponding to the extended portion may be provided separate from the
cover 41. For example, a cylindrical member may be attached to the innercylindrical portion 43 a so that the cylindrical member corresponding to the extended portion may be provided on thecover 41. - The tip end 431 a of the inner
cylindrical portion 43 a in a direction in which the tip end 431 a extends may protrude to the same position as theend surface 511 of the sealingmember 51, which faces theextension 12 f. That is, the innercylindrical portion 43 a may extend to a position at which the innercylindrical portion 43 a covers at least the inner peripheral surface 51 a of the sealingmember 51. - The inner
cylindrical portion 43 a may be formed on a part of the inner peripheral surface 51 a of the sealingmember 51. In this case, the innercylindrical portion 43 a may be formed on any part that is susceptible to the noise in the inner peripheral surface 51 a of the sealingmember 51. - The inner
cylindrical portion 43 a need not contact the inner peripheral surface 51 a of the sealingmember 51. - The
motor drive circuit 40 may be attached to thecover 41 in the accommodation space 41 a. - The
cover 41 may be attached to the outer peripheral surface of thesuction housing member 12, for example. - Although the
cover 41 is molded by the plastic material using theshield 43 as a metal core in the above illustrated embodiments, thecover 41 is not limited to this. Thecover 41 may be formed by other methods. For example, an engaging projection may be provided on theplastic portion 42, and an engaging hole with which the engaging projection engages may be provided in theshield 43. Thecover 41 may be formed by assembing theplastic portion 42 and theshield 43 together through engagement between the engaging projection and the engaging hole. - The
shield 43 may be formed of a conductive material such as iron and copper. - Although the
compression portion 15, theelectric motor 16, and themotor drive circuit 40 are arranged in this order in the axial direction of therotary shaft 19 in the above illustrated embodiments, the order of the arrangement is not limited to this. For example, the motor drive circuit, the compression portion, and the electric motor may be arranged in this order in the axial direction of therotary shaft 19. - The
compression portion 15 may be of a piston type or of a vane type, for example. - Therefore, the present examples and embodiments are to be considered as illustrative and not restrictive and the invention is not to be limited to the details given herein, but may be modified within the scope and equivalence of the appended claims.
Claims (6)
1. A motor-driven compressor, comprising:
a housing made of a metal material;
a compression portion and an electric motor accommodated in the housing;
a cover attached to the housing and configured by a plastic portion and a shield made of a metal material that intercepts electromagnetic noise;
a motor drive circuit accommodated in an accommodation space defined by the housing and the cover, wherein the motor drive circuit drives the electric motor; and
an elastic sealing member located between the housing and the cover, wherein
the shield includes an extended portion that extends toward the housing and is arranged inside the sealing member, and
the extended portion is in contact with the housing.
2. The motor-driven compressor according to claim 1 , wherein the extended portion has a spring property.
3. The motor-driven compressor according to claim 1 , wherein the extended portion contacts a whole inner peripheral surface of the sealing member.
4. The motor-driven compressor according to claim 1 , further comprising:
a rotor accommodated in the housing, the rotor configuring the electric motor; and
a rotary shaft accommodated in the housing, the rotary shaft rotating integrally with the rotor, wherein
the compression portion, the electric motor, and the motor drive circuit are arranged in this order in an axial direction of the rotary shaft.
5. The motor-driven compressor according to claim 1 , wherein the shield extends over a whole inner surface of the plastic portion.
6. The motor-driven compressor according to claim 1 , wherein the housing includes an annular extension contacting the sealing member, and wherein the extended portion is annular and has a tip end contacting the extension.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012-123270 | 2012-05-30 | ||
JP2012123270A JP2013249741A (en) | 2012-05-30 | 2012-05-30 | Motor-driven compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130323097A1 true US20130323097A1 (en) | 2013-12-05 |
Family
ID=49579712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/898,985 Abandoned US20130323097A1 (en) | 2012-05-30 | 2013-05-21 | Motor-driven compressor |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130323097A1 (en) |
JP (1) | JP2013249741A (en) |
KR (1) | KR101463134B1 (en) |
CN (1) | CN103452802A (en) |
DE (1) | DE102013209665A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015203390A (en) * | 2014-04-16 | 2015-11-16 | 住友ベークライト株式会社 | Compressor, compressor frame and process of manufacture of compressor frame |
EP3260682A4 (en) * | 2015-02-19 | 2017-12-27 | Kabushiki Kaisha Toyota Jidoshokki | Electric supercharger |
FR3059732A1 (en) * | 2016-12-06 | 2018-06-08 | Valeo Japan Co., Ltd. | COMPRESSOR FOR AN AIR CONDITIONING INSTALLATION OF A MOTOR VEHICLE |
US11387593B2 (en) * | 2020-08-05 | 2022-07-12 | Lg Electronics Inc. | High voltage connector assembly and motor-operated compressor including the same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6851851B2 (en) * | 2017-02-17 | 2021-03-31 | 愛三工業株式会社 | Stator and brushless motor |
JP2018204493A (en) * | 2017-06-01 | 2018-12-27 | サンデン・オートモーティブコンポーネント株式会社 | Compressor |
JP2019152199A (en) * | 2018-03-06 | 2019-09-12 | アイシン精機株式会社 | Electric pump |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3509438A (en) * | 1967-08-10 | 1970-04-28 | Tokheim Corp | Motor and transistorized drive circuit therefor |
US3510707A (en) * | 1966-02-10 | 1970-05-05 | Controls Co Of America | Motor and method of assembling |
US4296343A (en) * | 1979-10-05 | 1981-10-20 | Ambac Industries, Incorporated | Electric motor housing, or the like, with integral pole and methods for making same |
US4546300A (en) * | 1983-03-17 | 1985-10-08 | A. O. Smith Corporation | Electric power supply connection for submersible capacitor-start motor apparatus |
US4626723A (en) * | 1982-03-15 | 1986-12-02 | Ambac Industries, Incorporated | Actuator system for automotive seat mover mechanisms and the like |
US4961018A (en) * | 1989-08-11 | 1990-10-02 | Wayne/Scott Fetzer Company | Enclosed pump motor and wiring thereof |
US20040071573A1 (en) * | 2002-02-05 | 2004-04-15 | Johannes Pfetzer | Liquid pump |
CA2668609A1 (en) * | 2007-03-06 | 2008-09-12 | Mitsubishi Heavy Industries, Ltd. | Electric compressor for automobile use |
WO2011101946A1 (en) * | 2010-02-19 | 2011-08-25 | パナソニック株式会社 | Electric bicycle |
GB2480137A (en) * | 2010-04-28 | 2011-11-09 | Bosch Gmbh Robert | Suppression of commutator-sourced interference in an electric tool |
US20120186869A1 (en) * | 2011-01-21 | 2012-07-26 | Remy Technologies, L.L.C. | Method of blocking electro-magnetic interference (emi) in an electric machine and apparatus |
US20130320792A1 (en) * | 2012-05-30 | 2013-12-05 | Kabushiki Kaisha Toyota Jidoshokki | Motor-driven compressor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2655389B1 (en) * | 1989-12-01 | 1994-05-27 | Unite Hermetique | HERMETIC MOTOR COMPRESSOR WITH QUIET OPERATION. |
US5385453A (en) * | 1993-01-22 | 1995-01-31 | Copeland Corporation | Multiple compressor in a single shell |
JPH07119636A (en) * | 1993-10-25 | 1995-05-09 | Hitachi Ltd | Method for welding container of closed type compressor |
CN1085789C (en) * | 1993-11-15 | 2002-05-29 | 科普兰公司 | Compressor assembly with staked shell |
JP2002155862A (en) * | 2000-11-22 | 2002-05-31 | Toyota Industries Corp | Compressor |
JP4022163B2 (en) * | 2003-03-27 | 2007-12-12 | 三菱重工業株式会社 | Electric compressor |
JP5209259B2 (en) * | 2007-09-25 | 2013-06-12 | サンデン株式会社 | Drive circuit integrated electric compressor |
-
2012
- 2012-05-30 JP JP2012123270A patent/JP2013249741A/en not_active Withdrawn
-
2013
- 2013-05-21 US US13/898,985 patent/US20130323097A1/en not_active Abandoned
- 2013-05-24 KR KR20130058807A patent/KR101463134B1/en not_active IP Right Cessation
- 2013-05-24 DE DE201310209665 patent/DE102013209665A1/en not_active Withdrawn
- 2013-05-28 CN CN2013102038865A patent/CN103452802A/en active Pending
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3510707A (en) * | 1966-02-10 | 1970-05-05 | Controls Co Of America | Motor and method of assembling |
US3509438A (en) * | 1967-08-10 | 1970-04-28 | Tokheim Corp | Motor and transistorized drive circuit therefor |
US4296343A (en) * | 1979-10-05 | 1981-10-20 | Ambac Industries, Incorporated | Electric motor housing, or the like, with integral pole and methods for making same |
US4372035A (en) * | 1979-10-05 | 1983-02-08 | Ambac Industries, Incorporated | Method for making an electric motor housing with integral pole |
US4626723A (en) * | 1982-03-15 | 1986-12-02 | Ambac Industries, Incorporated | Actuator system for automotive seat mover mechanisms and the like |
US4546300A (en) * | 1983-03-17 | 1985-10-08 | A. O. Smith Corporation | Electric power supply connection for submersible capacitor-start motor apparatus |
US4961018A (en) * | 1989-08-11 | 1990-10-02 | Wayne/Scott Fetzer Company | Enclosed pump motor and wiring thereof |
US20040071573A1 (en) * | 2002-02-05 | 2004-04-15 | Johannes Pfetzer | Liquid pump |
CA2668609A1 (en) * | 2007-03-06 | 2008-09-12 | Mitsubishi Heavy Industries, Ltd. | Electric compressor for automobile use |
WO2011101946A1 (en) * | 2010-02-19 | 2011-08-25 | パナソニック株式会社 | Electric bicycle |
JP2011168180A (en) * | 2010-02-19 | 2011-09-01 | Panasonic Corp | Power-assisted bicycle |
GB2480137A (en) * | 2010-04-28 | 2011-11-09 | Bosch Gmbh Robert | Suppression of commutator-sourced interference in an electric tool |
US20120186869A1 (en) * | 2011-01-21 | 2012-07-26 | Remy Technologies, L.L.C. | Method of blocking electro-magnetic interference (emi) in an electric machine and apparatus |
US20130320792A1 (en) * | 2012-05-30 | 2013-12-05 | Kabushiki Kaisha Toyota Jidoshokki | Motor-driven compressor |
Non-Patent Citations (1)
Title |
---|
Machine translation of JP2011-168180 corresponding to WO 2011/101946 A1 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015203390A (en) * | 2014-04-16 | 2015-11-16 | 住友ベークライト株式会社 | Compressor, compressor frame and process of manufacture of compressor frame |
EP3133285A4 (en) * | 2014-04-16 | 2017-12-27 | Sumitomo Bakelite Co., Ltd. | Compressor, compressor chassis, compressor chassis manufacturing method |
EP3260682A4 (en) * | 2015-02-19 | 2017-12-27 | Kabushiki Kaisha Toyota Jidoshokki | Electric supercharger |
US20180023593A1 (en) * | 2015-02-19 | 2018-01-25 | Kabushiki Kaisha Toyota Jidoshokki | Electric supercharger |
FR3059732A1 (en) * | 2016-12-06 | 2018-06-08 | Valeo Japan Co., Ltd. | COMPRESSOR FOR AN AIR CONDITIONING INSTALLATION OF A MOTOR VEHICLE |
WO2018105509A1 (en) * | 2016-12-06 | 2018-06-14 | Valeo Japan Co., Ltd. | Compressor for an air-conditioning installation of a motor vehicle |
US11387593B2 (en) * | 2020-08-05 | 2022-07-12 | Lg Electronics Inc. | High voltage connector assembly and motor-operated compressor including the same |
Also Published As
Publication number | Publication date |
---|---|
CN103452802A (en) | 2013-12-18 |
DE102013209665A1 (en) | 2013-12-05 |
KR101463134B1 (en) | 2014-11-20 |
KR20130135085A (en) | 2013-12-10 |
JP2013249741A (en) | 2013-12-12 |
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Legal Events
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AS | Assignment |
Owner name: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUKASAKA, HIROSHI;REEL/FRAME:030466/0091 Effective date: 20130510 |
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STCB | Information on status: application discontinuation |
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