US20140322048A1 - Motor-driven compressor - Google Patents
Motor-driven compressor Download PDFInfo
- Publication number
- US20140322048A1 US20140322048A1 US14/259,456 US201414259456A US2014322048A1 US 20140322048 A1 US20140322048 A1 US 20140322048A1 US 201414259456 A US201414259456 A US 201414259456A US 2014322048 A1 US2014322048 A1 US 2014322048A1
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- United States
- Prior art keywords
- accommodation chamber
- stator
- cluster block
- housing
- partition wall
- 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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- 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
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
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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
- F04C23/008—Hermetic pumps
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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
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/803—Electric connectors or cables; Fittings therefor
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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
- 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.
- Japanese Patent Laid-Open No. 2010-59809 discloses a conventional motor-driven compressor (hereinafter, simply called a compressor).
- the compressor includes an electric driving mechanism, a compression mechanism that is driven by the electric driving mechanism and performs compression of a refrigerant, and a motor drive circuit for driving the electric driving mechanism.
- the electric driving mechanism is accommodated in a housing.
- the electric driving mechanism has a stator, a rotor, a drive shaft, a lead wire and a cluster block.
- the stator has a stator core and a coil provided at the stator core.
- the rotor is rotatably provided in the stator.
- the drive shaft is fixed to the rotor.
- the drive shaft drives the compression mechanism.
- the lead wire is connected to the coil.
- the cluster block electrically connects the lead wire to the motor drive circuit.
- the housing has a main body portion in a cylindrical shape, and a bulging portion that bulges in a radially outward direction from the main body portion.
- the compression mechanism is accommodated at the front of the main body portion.
- a stator accommodation chamber in which the stator is accommodated is formed in an inside thereof.
- the stator core is supported in the stator accommodation chamber in the main body portion.
- shrinkage fitting or press fitting is generally adopted for support of the stator core to the main body portion.
- the bulging portion is integrated with the main body portion.
- the bulging portion forms a cluster block accommodation chamber in an inside thereof.
- the cluster block is accommodated in the cluster block accommodation chamber.
- the motor drive circuit is provided at a rear side of the housing, and electric power is supplied to the coil from the motor drive circuit, whereby the electric driving mechanism rotates the drive shaft, and the compression mechanism is operated. Therefore, if the compressor is mounted on a hybrid vehicle, the vehicle interior can be air-conditioned even when the engine is stopped.
- the housing in which the bulging portion is located in the radially outward direction of the main body portion is adopted. Therefore, in the compressor, stress that acts on the outer circumferential surface of the stator core becomes ununiform when the stator core is shrinkage-fitted into the stator accommodation chamber of the housing, and circularity of the stator core after being fixed tends to be low. The same also applies to the case of the stator core being press-fitted into the housing. Therefore, in this compressor, the electric driving mechanism hardly keeps high efficiency.
- the present invention has been made in the light of the conventional circumstances described above, and a problem to be solved is to provide a motor-driven compressor in which an electric driving mechanism is capable of keeping high efficiency.
- a motor-driven compressor of the present invention comprises an electric driving mechanism, a compression mechanism that is driven by the electric driving mechanism, and performs compression of a refrigerant, and a motor drive circuit for driving the electric driving mechanism.
- the electric driving mechanism has a stator, a rotor, a drive shaft, a lead wire and a cluster block.
- the stator is accommodated in a housing, and has a stator core and a coil provided at the stator core.
- the rotor is rotatably provided in the stator.
- the drive shaft is fixed to the rotor, and drives the compression mechanism.
- the lead wire is connected to the coil.
- the cluster block electrically connects the lead wire to the motor drive circuit.
- the housing has a main body portion, a bulging portion and a partition wall.
- the main body portion is in a cylindrical shape, and forms a stator accommodation chamber in which the stator is accommodated, in an inside thereof.
- the bulging portion bulges in a radially outward direction from the main body portion, and forms a cluster block accommodation chamber in which the cluster block is accommodated, in an inside thereof.
- the partition wall separates the stator accommodation chamber and the cluster block accommodation chamber, in a radial direction.
- the housing supports the stator core at the main body portion and the partition wall. Further, in the housing, the lead wire is disposed across the stator accommodation chamber and the cluster block accommodation chamber.
- FIG. 1 is a sectional view of a compressor of embodiment 1.
- FIG. 2 is a sectional view seen from the arrows II-II in FIG. 1 relating to the compressor of embodiment 1, and showing a state in which a rotor and a drive shaft are removed.
- FIG. 3 is a sectional view of a compressor of embodiment 2.
- FIG. 4 is a sectional view seen from the arrows IV-IV in FIG. 3 relating to the compressor of embodiment 2 and showing a state in which a rotor and a drive shaft are removed.
- a compressor of embodiment 1 is used in an air-conditioning apparatus that is mounted on a hybrid vehicle and performs temperature control of a vehicle interior. As shown in FIG. 1 , the compressor includes a housing 1 , an electric driving mechanism 3 , a compression mechanism 5 and a motor drive circuit 7 .
- the housing 1 is formed of a main housing 10 , an end housing 12 and a cover 14 .
- the main housing 10 is in a bottomed cylindrical shape.
- the end housing 12 is located at a front of the main housing 10 to close an opening of the main housing 10 .
- the cover 14 is fixed to a rear end of the main housing 10 .
- a fixed block 9 is supported in the main housing 10 .
- a front portion of the housing 1 is configured by a front portion of the main housing 10 that is located forward of the fixed block 9 , and the end housing 12 .
- a compression mechanism accommodation chamber 11 a is formed in the front portion.
- the compression mechanism 5 is housed in the compression mechanism accommodation chamber 11 a .
- a main body portion 1 b in a cylindrical shape and a bulging portion 1 c are configured by a rear portion of the housing 1 , which is located rearward of the fixed block 9 .
- a stator accommodation chamber 11 b that continues in an axial direction to the compression mechanism accommodation chamber 11 a is formed.
- a stator 15 of the electric driving mechanism 3 is accommodated in the stator accommodation chamber 11 b .
- the bulging portion 1 c forms a cluster block accommodation chamber 11 c that is located in a radially outward direction of the stator accommodation chamber 11 b .
- a lead wire 21 and a cluster block 23 are accommodated in the cluster block accommodation chamber 11 c.
- the cover 14 is fixed to the rear end of the main housing 10 in such a manner as to form a motor drive circuit chamber 7 b between the cover 14 and the main housing 10 .
- the motor drive circuit chamber 7 b the motor drive circuit 7 is accommodated. Therefore, in the present embodiment, the compression mechanism 5 , the electric driving mechanism 3 , and the motor drive circuit 7 are disposed in this sequence side by side along an axial direction of a drive shaft 19 that will be described later.
- the electric driving mechanism 3 has the stator 15 , a rotor 17 , the drive shaft 19 , the lead wire 21 and the cluster block 23 .
- the stator 15 , the rotor 17 and the drive shaft 19 are accommodated in the stator accommodation chamber 11 b .
- the stator 15 has a stator core 15 b and a coil 25 provided at the stator core 15 b .
- a plurality of refrigerant channels 15 a are formed between the outer circumferential surface of the stator 15 and the main housing 10 .
- the respective refrigerant channels 15 a are provided at positions at equiangular intervals with a center axis O of the rotor 17 as a center.
- the rotor 17 is provided in the stator 15 .
- the drive shaft 19 is fixed to the rotor 17 .
- the rotor 17 is rotatable integrally with the drive shaft 19 in the stator 15 .
- a central portion of the fixed block 9 protrudes rearward, and a shaft hole 9 a is formed in a center thereof.
- a shaft seal device 27 and a bearing device 29 a are fixed to the fixed block 9 .
- a front side of the drive shaft 19 is inserted through the shaft hole 9 a .
- a boss portion 31 a in a cylindrical shape is provided to protrude toward the front side.
- the boss portion 31 a is provided with a bearing device 29 b .
- the drive shaft 19 drives the compression mechanism 5 that will be described later.
- a connector 33 is provided at a front end side of the lead wire 21 .
- the lead wire 21 is connected to the coil 25 by the connector 33 .
- a rear end side of the lead wire 21 is connected to the cluster block 23 via a connection terminal 23 a that is accommodated in an inside of the cluster block 23 .
- the cluster block 23 is connected to the motor drive circuit 7 via a connection terminal 23 b.
- the compression mechanism 5 has a fixed scroll 35 that is fixed to an inner circumferential surface of the main housing 10 , and a movable scroll 37 that is disposed to face the fixed scroll 35 .
- the fixed scroll 35 is fixed to the fixed block 9 by a plurality of pins 39 .
- the movable scroll 37 is disposed between the fixed block 9 and the fixed scroll 35 .
- the fixed scroll 35 and the movable scroll 37 are meshed with each other, and a compression chamber 41 is formed between both of them.
- a boss portion 31 b in a cylindrical shape is provided to protrude toward a rear side.
- a plurality of rotation preventing holes 43 are provided to be recessed in an outer circumferential region of the rear surface of the movable scroll 37 .
- Rotation prevention rings 45 are fixed to the respective rotation preventing holes 43 .
- On a front surface of the fixed block 9 a plurality of rotation prevention pins 40 are provided to protrude toward the front side. The respective rotation prevention pins 40 roll in the rotation prevention rings 45 respectively.
- An eccentric shaft portion 19 a is formed to protrude at a front end portion of the drive shaft 19 .
- the eccentric shaft portion 19 a is rotatably inserted into a bush 47 with a balancer that is provided between the fixed block 9 and the movable scroll 37 .
- a bearing device 29 c is provided between the bush 47 with a balancer and the boss portion 31 b.
- a discharge chamber 49 is formed between the fixed scroll 35 and the end housing 12 .
- a discharge port 49 a that allows the compression chamber 41 to communicate with the discharge chamber 49 is formed.
- a discharge reed valve not illustrated that opens and closes the discharge port 49 a , and a retainer 51 that regulates a lift amount of the discharge reed valve are fixed.
- a discharge port 49 b is provided to penetrate through the end housing 12 .
- a partition wall 53 is provided between the main body portion 1 b and the bulging portion 1 c in the main housing 10 .
- a cylindrical surface 53 a that is coaxial with the stator accommodation chamber 11 b is formed.
- the partition wall 53 supports the stator core 15 b that is provided in the stator accommodation chamber 11 b.
- an insertion path 55 is formed in the radial direction in the partition wall 53 near the compression mechanism 5 so as to allow the cluster block accommodation chamber 11 c and the stator accommodation chamber 11 b to communicate with each other.
- the partition wall 53 separates the stator accommodation chamber 11 b and the cluster block accommodation chamber 11 c except for the insertion path 55 .
- the lead wire 21 is inserted through the insertion path 55 in the radial direction, and is disposed across the cluster block accommodation chamber 11 c and the stator accommodation chamber 11 b.
- a suction port 49 c is formed at a rear end of the main housing 10 .
- the stator accommodation chamber 11 b is connected to an evaporator not illustrated by piping that is connected to the suction port 49 c .
- the evaporator is connected to an expansion valve not illustrated by piping, and the expansion valve is connected to a condenser not illustrated by piping.
- the discharge chamber 49 is connected to the condenser by the piping that is connected to the discharge port 49 b .
- the compressor, the evaporator, the expansion valve and the condenser configure a refrigeration circuit of an air-conditioning apparatus for a vehicle.
- the driver of the vehicle performs an operation to the air-conditioning apparatus, whereby power is supplied to the motor drive circuit 7 from an external battery or the like, and power is supplied to the coil 25 from the motor drive circuit 7 via the connection terminal 23 b , the cluster block 23 , the lead wire 21 and the connector 33 .
- the electric driving mechanism 3 is operated.
- the rotor 17 rotates with the center axis O as the center, and the drive shaft 19 rotates. Therefore, the compression mechanism 5 is operated. Namely, the movable scroll 37 revolves around the drive shaft 19 , and the compression chamber 41 gradually reduces in volume. Therefore, the refrigerant from the evaporator is sucked into the compression chamber 41 from the stator accommodation chamber 11 b .
- the refrigerant in the stator accommodation chamber 11 b cools the electric driving mechanism 3 .
- the refrigerant that is compressed in the compression chamber 41 is discharged into the discharge chamber 49 , and is discharged to the condenser. In this manner, according to the air-conditioning apparatus having the compressor, even when the engine is stopped, the vehicle interior can be air-conditioned.
- the compressor is assembled as follows. First, the main housing 10 is heated, and the entire main housing 10 is expanded in the radially outward direction. Thereby, an inside diameter of the main body portion 1 b in the main housing 10 becomes slightly larger than an outside diameter of the stator 15 . Therefore, in this state, the stator 15 is inserted into the stator accommodation chamber 11 b of the main body portion 1 b . Subsequently, the main housing 10 is returned to a room temperature, and the main body portion 1 b is shrunk. In this manner, the stator 15 is shrinkage-fitted into the main body portion 1 b.
- the partition wall 53 that is provided between the main body portion 1 b and the bulging portion 1 c restrains deformation of the main body portion 1 b at the time of shrinkage-fitting the stator 15 into the stator accommodation chamber 11 b . Therefore, stress that acts on the outer circumferential surface of the stator core 15 b easily becomes uniform.
- a wall surface at the stator accommodation chamber 11 b side, of the partition wall 53 is the cylindrical surface 53 a that is coaxial with the stator accommodation chamber 11 b , and therefore, the stress that acts on the outer circumferential surface of the stator core 15 b is more uniform. Therefore, in this compressor, the circularity of the stator core 15 b after shrinkage-fitting can be kept high.
- the electric driving mechanism 3 can keep high efficiency.
- the lead wire 21 is connected to the coil 25 by the connector 33 .
- the connector 33 easily connects the lead wire 21 to the coil 25 , and therefore, assembly of the compressor is facilitated.
- the lead wire 21 that is inserted through the insertion path 55 can be connected to the coil 25 at the compression mechanism 5 side. Therefore, a length in the axial direction of this compressor can be made shorter, and mountability to the vehicle or the like can be enhanced more, than in the case of connecting the lead wire 21 to the coil 25 at the motor drive circuit 7 side from the cluster block 23 .
- a slit 57 that extends in an axial direction is formed in a partition wall 54 .
- the slit 57 allows the stator accommodation chamber 11 b and the cluster block accommodation chamber 11 c to communicate with each other.
- the cluster block 23 is fixed to the stator core 15 b via a fitting member 59 of a resin.
- the fitting member 59 is located in the slit 57 .
- a plurality of refrigerant channels 61 are formed in the inner circumferential surface of the main body portion 1 b .
- the slit 57 and the respective refrigerant channels 61 are spaced equiangularly from one another in a circumferential direction of the main body portion 1 b . Further, the slit 57 and the respective refrigerant channels 61 are formed to have widths equal to one another in the circumferential direction of the main body portion 1 b .
- the other configuration is similar to that of embodiment 1.
- the cluster block 23 can be assembled in a state fixed to the stator core 15 b . Therefore, in this compressor, the stator 15 and the cluster block 23 can be accommodated in the housing 10 at the same time, and assembly is easy.
- the slit and the respective refrigerant channels 61 are spaced equiangularly from one another in the circumferential direction of the second housing 11 b . Further, the slit 57 and the respective refrigerant channels 61 are formed to have widths equal to one another in the circumferential direction of the second housing 11 b . Therefore, the stress that acts on the outer circumferential surface of the stator core 15 b can be made uniform more reliably. Therefore, in this compressor, the circularity of the stator core 15 b after fixation can be kept higher. The other operation effect is similar to that of embodiment 1.
- the cover 14 is provided at the rear of the main body portion 1 b , and the compression mechanism 5 , the electric driving mechanism 3 and the motor drive circuit 7 are disposed in this sequence side by side along the axial direction of the drive shaft 19 .
- the cover 14 may be provided at an upper part of the main body portion 1 b.
- the present invention is usable in an air-conditioning apparatus of a vehicle, or the like.
Abstract
A motor-driven compressor in which an electric driving mechanism is capable of keeping high efficiency. The compressor includes an electric driving mechanism, a compression mechanism and a motor drive circuit. The electric driving mechanism is accommodated in a housing. The housing has a main body portion in a cylindrical shape, a bulging portion that bulges in a radially outward direction from the main body portion, and a partition wall. In the main body portion, a stator accommodation chamber is formed. In the stator accommodation chamber, a stator of the electric driving mechanism is accommodated. In the bulging portion, a cluster block accommodation chamber is formed. In the cluster block accommodation chamber, a cluster block is accommodated. A partition wall separates the stator accommodation chamber and the cluster block accommodation chamber in a radial direction. The main body portion and the partition wall support a stator core.
Description
- The present invention relates to a motor-driven compressor.
- Japanese Patent Laid-Open No. 2010-59809 discloses a conventional motor-driven compressor (hereinafter, simply called a compressor). The compressor includes an electric driving mechanism, a compression mechanism that is driven by the electric driving mechanism and performs compression of a refrigerant, and a motor drive circuit for driving the electric driving mechanism.
- The electric driving mechanism is accommodated in a housing. The electric driving mechanism has a stator, a rotor, a drive shaft, a lead wire and a cluster block. The stator has a stator core and a coil provided at the stator core. The rotor is rotatably provided in the stator. The drive shaft is fixed to the rotor. The drive shaft drives the compression mechanism. The lead wire is connected to the coil. The cluster block electrically connects the lead wire to the motor drive circuit.
- The housing has a main body portion in a cylindrical shape, and a bulging portion that bulges in a radially outward direction from the main body portion. At the front of the main body portion, the compression mechanism is accommodated. Further, at the rear of the main body portion, a stator accommodation chamber in which the stator is accommodated is formed in an inside thereof. The stator core is supported in the stator accommodation chamber in the main body portion. For support of the stator core to the main body portion, shrinkage fitting or press fitting is generally adopted. The bulging portion is integrated with the main body portion. The bulging portion forms a cluster block accommodation chamber in an inside thereof. The cluster block is accommodated in the cluster block accommodation chamber.
- In the compressor, the motor drive circuit is provided at a rear side of the housing, and electric power is supplied to the coil from the motor drive circuit, whereby the electric driving mechanism rotates the drive shaft, and the compression mechanism is operated. Therefore, if the compressor is mounted on a hybrid vehicle, the vehicle interior can be air-conditioned even when the engine is stopped.
- However, in the conventional compressor as described above, the housing in which the bulging portion is located in the radially outward direction of the main body portion is adopted. Therefore, in the compressor, stress that acts on the outer circumferential surface of the stator core becomes ununiform when the stator core is shrinkage-fitted into the stator accommodation chamber of the housing, and circularity of the stator core after being fixed tends to be low. The same also applies to the case of the stator core being press-fitted into the housing. Therefore, in this compressor, the electric driving mechanism hardly keeps high efficiency.
- The present invention has been made in the light of the conventional circumstances described above, and a problem to be solved is to provide a motor-driven compressor in which an electric driving mechanism is capable of keeping high efficiency.
- A motor-driven compressor of the present invention comprises an electric driving mechanism, a compression mechanism that is driven by the electric driving mechanism, and performs compression of a refrigerant, and a motor drive circuit for driving the electric driving mechanism.
- The electric driving mechanism has a stator, a rotor, a drive shaft, a lead wire and a cluster block. The stator is accommodated in a housing, and has a stator core and a coil provided at the stator core. The rotor is rotatably provided in the stator. The drive shaft is fixed to the rotor, and drives the compression mechanism. The lead wire is connected to the coil. The cluster block electrically connects the lead wire to the motor drive circuit.
- The housing has a main body portion, a bulging portion and a partition wall. The main body portion is in a cylindrical shape, and forms a stator accommodation chamber in which the stator is accommodated, in an inside thereof. The bulging portion bulges in a radially outward direction from the main body portion, and forms a cluster block accommodation chamber in which the cluster block is accommodated, in an inside thereof. The partition wall separates the stator accommodation chamber and the cluster block accommodation chamber, in a radial direction. The housing supports the stator core at the main body portion and the partition wall. Further, in the housing, the lead wire is disposed across the stator accommodation chamber and the cluster block accommodation chamber.
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FIG. 1 is a sectional view of a compressor of embodiment 1. -
FIG. 2 is a sectional view seen from the arrows II-II inFIG. 1 relating to the compressor of embodiment 1, and showing a state in which a rotor and a drive shaft are removed. -
FIG. 3 is a sectional view of a compressor of embodiment 2. -
FIG. 4 is a sectional view seen from the arrows IV-IV inFIG. 3 relating to the compressor of embodiment 2 and showing a state in which a rotor and a drive shaft are removed. - Hereinafter, embodiments 1 and 2 in which the present invention is embodied will be described with reference to the drawings.
- A compressor of embodiment 1 is used in an air-conditioning apparatus that is mounted on a hybrid vehicle and performs temperature control of a vehicle interior. As shown in
FIG. 1 , the compressor includes a housing 1, anelectric driving mechanism 3, acompression mechanism 5 and a motor drive circuit 7. - The housing 1 is formed of a
main housing 10, anend housing 12 and acover 14. Themain housing 10 is in a bottomed cylindrical shape. Theend housing 12 is located at a front of themain housing 10 to close an opening of themain housing 10. Thecover 14 is fixed to a rear end of themain housing 10. - In the
main housing 10, afixed block 9 is supported. A front portion of the housing 1 is configured by a front portion of themain housing 10 that is located forward of thefixed block 9, and theend housing 12. In the front portion, a compressionmechanism accommodation chamber 11 a is formed. In the compressionmechanism accommodation chamber 11 a, thecompression mechanism 5 is housed. - Further, a
main body portion 1 b in a cylindrical shape and a bulgingportion 1 c are configured by a rear portion of the housing 1, which is located rearward of thefixed block 9. In themain body portion 1 b, astator accommodation chamber 11 b that continues in an axial direction to the compressionmechanism accommodation chamber 11 a is formed. Astator 15 of theelectric driving mechanism 3 is accommodated in thestator accommodation chamber 11 b. The bulgingportion 1 c forms a clusterblock accommodation chamber 11 c that is located in a radially outward direction of thestator accommodation chamber 11 b. Alead wire 21 and acluster block 23 are accommodated in the clusterblock accommodation chamber 11 c. - The
cover 14 is fixed to the rear end of themain housing 10 in such a manner as to form a motordrive circuit chamber 7 b between thecover 14 and themain housing 10. In the motordrive circuit chamber 7 b, the motor drive circuit 7 is accommodated. Therefore, in the present embodiment, thecompression mechanism 5, theelectric driving mechanism 3, and the motor drive circuit 7 are disposed in this sequence side by side along an axial direction of adrive shaft 19 that will be described later. - The
electric driving mechanism 3 has thestator 15, arotor 17, thedrive shaft 19, thelead wire 21 and thecluster block 23. Thestator 15, therotor 17 and thedrive shaft 19 are accommodated in thestator accommodation chamber 11 b. As shown inFIG. 2 , thestator 15 has astator core 15 b and acoil 25 provided at thestator core 15 b. Further, on an outer circumferential surface of thestator 15, a plurality ofrefrigerant channels 15 a are formed between the outer circumferential surface of thestator 15 and themain housing 10. The respectiverefrigerant channels 15 a are provided at positions at equiangular intervals with a center axis O of therotor 17 as a center. As shown inFIG. 1 , therotor 17 is provided in thestator 15. Thedrive shaft 19 is fixed to therotor 17. Thereby, therotor 17 is rotatable integrally with thedrive shaft 19 in thestator 15. - A central portion of the fixed
block 9 protrudes rearward, and ashaft hole 9 a is formed in a center thereof. At a front side of theshaft hole 9 a, ashaft seal device 27 and abearing device 29 a are fixed to the fixedblock 9. A front side of thedrive shaft 19 is inserted through theshaft hole 9 a. In an inside of the rear end of themain housing 10, aboss portion 31 a in a cylindrical shape is provided to protrude toward the front side. Theboss portion 31 a is provided with a bearingdevice 29 b. Thedrive shaft 19 drives thecompression mechanism 5 that will be described later. - A
connector 33 is provided at a front end side of thelead wire 21. Thelead wire 21 is connected to thecoil 25 by theconnector 33. A rear end side of thelead wire 21 is connected to thecluster block 23 via aconnection terminal 23 a that is accommodated in an inside of thecluster block 23. Thecluster block 23 is connected to the motor drive circuit 7 via aconnection terminal 23 b. - The
compression mechanism 5 has a fixedscroll 35 that is fixed to an inner circumferential surface of themain housing 10, and amovable scroll 37 that is disposed to face the fixedscroll 35. The fixedscroll 35 is fixed to the fixedblock 9 by a plurality ofpins 39. Themovable scroll 37 is disposed between thefixed block 9 and the fixedscroll 35. The fixedscroll 35 and themovable scroll 37 are meshed with each other, and acompression chamber 41 is formed between both of them. - In a central portion of a rear surface of the
movable scroll 37, aboss portion 31 b in a cylindrical shape is provided to protrude toward a rear side. Further, a plurality ofrotation preventing holes 43 are provided to be recessed in an outer circumferential region of the rear surface of themovable scroll 37. Rotation prevention rings 45 are fixed to the respective rotation preventing holes 43. On a front surface of the fixedblock 9, a plurality of rotation prevention pins 40 are provided to protrude toward the front side. The respective rotation prevention pins 40 roll in the rotation prevention rings 45 respectively. - An
eccentric shaft portion 19 a is formed to protrude at a front end portion of thedrive shaft 19. Theeccentric shaft portion 19 a is rotatably inserted into abush 47 with a balancer that is provided between thefixed block 9 and themovable scroll 37. A bearingdevice 29 c is provided between thebush 47 with a balancer and theboss portion 31 b. - A
discharge chamber 49 is formed between the fixedscroll 35 and theend housing 12. In the fixedscroll 35, adischarge port 49 a that allows thecompression chamber 41 to communicate with thedischarge chamber 49 is formed. Further, at a front end surface of the fixedscroll 35, a discharge reed valve not illustrated that opens and closes thedischarge port 49 a, and aretainer 51 that regulates a lift amount of the discharge reed valve are fixed. In theend housing 12, adischarge port 49 b is provided to penetrate through theend housing 12. - As shown in
FIG. 1 andFIG. 2 , apartition wall 53 is provided between themain body portion 1 b and the bulgingportion 1 c in themain housing 10. At astator accommodation chamber 11 b side of thepartition wall 53, acylindrical surface 53 a that is coaxial with thestator accommodation chamber 11 b is formed. Thepartition wall 53 supports thestator core 15 b that is provided in thestator accommodation chamber 11 b. - Further, as shown in
FIG. 1 , aninsertion path 55 is formed in the radial direction in thepartition wall 53 near thecompression mechanism 5 so as to allow the clusterblock accommodation chamber 11 c and thestator accommodation chamber 11 b to communicate with each other. Thepartition wall 53 separates thestator accommodation chamber 11 b and the clusterblock accommodation chamber 11 c except for theinsertion path 55. Thelead wire 21 is inserted through theinsertion path 55 in the radial direction, and is disposed across the clusterblock accommodation chamber 11 c and thestator accommodation chamber 11 b. - A
suction port 49 c is formed at a rear end of themain housing 10. Thus, thestator accommodation chamber 11 b is connected to an evaporator not illustrated by piping that is connected to thesuction port 49 c. The evaporator is connected to an expansion valve not illustrated by piping, and the expansion valve is connected to a condenser not illustrated by piping. Meanwhile, thedischarge chamber 49 is connected to the condenser by the piping that is connected to thedischarge port 49 b. The compressor, the evaporator, the expansion valve and the condenser configure a refrigeration circuit of an air-conditioning apparatus for a vehicle. - In this compressor, the driver of the vehicle performs an operation to the air-conditioning apparatus, whereby power is supplied to the motor drive circuit 7 from an external battery or the like, and power is supplied to the
coil 25 from the motor drive circuit 7 via theconnection terminal 23 b, thecluster block 23, thelead wire 21 and theconnector 33. Thereby, theelectric driving mechanism 3 is operated. Thereby, therotor 17 rotates with the center axis O as the center, and thedrive shaft 19 rotates. Therefore, thecompression mechanism 5 is operated. Namely, themovable scroll 37 revolves around thedrive shaft 19, and thecompression chamber 41 gradually reduces in volume. Therefore, the refrigerant from the evaporator is sucked into thecompression chamber 41 from thestator accommodation chamber 11 b. At this time, the refrigerant in thestator accommodation chamber 11 b cools theelectric driving mechanism 3. The refrigerant that is compressed in thecompression chamber 41 is discharged into thedischarge chamber 49, and is discharged to the condenser. In this manner, according to the air-conditioning apparatus having the compressor, even when the engine is stopped, the vehicle interior can be air-conditioned. - The compressor is assembled as follows. First, the
main housing 10 is heated, and the entiremain housing 10 is expanded in the radially outward direction. Thereby, an inside diameter of themain body portion 1 b in themain housing 10 becomes slightly larger than an outside diameter of thestator 15. Therefore, in this state, thestator 15 is inserted into thestator accommodation chamber 11 b of themain body portion 1 b. Subsequently, themain housing 10 is returned to a room temperature, and themain body portion 1 b is shrunk. In this manner, thestator 15 is shrinkage-fitted into themain body portion 1 b. - As shown in
FIG. 1 andFIG. 2 , at this time, in this compressor, thepartition wall 53 that is provided between themain body portion 1 b and the bulgingportion 1 c restrains deformation of themain body portion 1 b at the time of shrinkage-fitting thestator 15 into thestator accommodation chamber 11 b. Therefore, stress that acts on the outer circumferential surface of thestator core 15 b easily becomes uniform. In particular, in this compressor, a wall surface at thestator accommodation chamber 11 b side, of thepartition wall 53 is thecylindrical surface 53 a that is coaxial with thestator accommodation chamber 11 b, and therefore, the stress that acts on the outer circumferential surface of thestator core 15 b is more uniform. Therefore, in this compressor, the circularity of thestator core 15 b after shrinkage-fitting can be kept high. - Accordingly, in this compressor, the
electric driving mechanism 3 can keep high efficiency. - In this compressor, the
lead wire 21 is connected to thecoil 25 by theconnector 33. Theconnector 33 easily connects thelead wire 21 to thecoil 25, and therefore, assembly of the compressor is facilitated. - Further, in this compressor, the
lead wire 21 that is inserted through theinsertion path 55 can be connected to thecoil 25 at thecompression mechanism 5 side. Therefore, a length in the axial direction of this compressor can be made shorter, and mountability to the vehicle or the like can be enhanced more, than in the case of connecting thelead wire 21 to thecoil 25 at the motor drive circuit 7 side from thecluster block 23. - As shown in
FIG. 3 , in a compressor of embodiment 2, aslit 57 that extends in an axial direction is formed in apartition wall 54. Theslit 57 allows thestator accommodation chamber 11 b and the clusterblock accommodation chamber 11 c to communicate with each other. - Further, the
cluster block 23 is fixed to thestator core 15 b via afitting member 59 of a resin. Thefitting member 59 is located in theslit 57. - Further, in this compressor, a plurality of
refrigerant channels 61 are formed in the inner circumferential surface of themain body portion 1 b. Theslit 57 and the respectiverefrigerant channels 61 are spaced equiangularly from one another in a circumferential direction of themain body portion 1 b. Further, theslit 57 and the respectiverefrigerant channels 61 are formed to have widths equal to one another in the circumferential direction of themain body portion 1 b. The other configuration is similar to that of embodiment 1. - In this compressor, by inserting the
fitting member 59 through theslit 57, thecluster block 23 can be assembled in a state fixed to thestator core 15 b. Therefore, in this compressor, thestator 15 and thecluster block 23 can be accommodated in thehousing 10 at the same time, and assembly is easy. - Further, as shown in
FIG. 4 , in this compressor, the slit and the respectiverefrigerant channels 61 are spaced equiangularly from one another in the circumferential direction of thesecond housing 11 b. Further, theslit 57 and the respectiverefrigerant channels 61 are formed to have widths equal to one another in the circumferential direction of thesecond housing 11 b. Therefore, the stress that acts on the outer circumferential surface of thestator core 15 b can be made uniform more reliably. Therefore, in this compressor, the circularity of thestator core 15 b after fixation can be kept higher. The other operation effect is similar to that of embodiment 1. - While the present invention is described in conformity with embodiments 1 and 2 in the above, the present invention is not limited to embodiments 1 and 2 described above, and it goes without saying that the present invention can be applied by being properly changed within the range without departing from the gist of the present invention.
- For example, in each of the compressors of embodiment 1 and 2, the
cover 14 is provided at the rear of themain body portion 1 b, and thecompression mechanism 5, theelectric driving mechanism 3 and the motor drive circuit 7 are disposed in this sequence side by side along the axial direction of thedrive shaft 19. Instead of this, thecover 14 may be provided at an upper part of themain body portion 1 b. - The present invention is usable in an air-conditioning apparatus of a vehicle, or the like.
-
-
- 1 . . . housing (10 . . . main housing, 12 . . . end housing, 14 . . . cover)
- 1 b . . . main body portion
- 1 c . . . bulging portion
- 3 . . . electric driving mechanism
- 5 . . . compression mechanism
- 7 . . . motor drive circuit
- 11 b . . . stator accommodation chamber
- 11 c . . . cluster block accommodation chamber
- 15 . . . stator
- 15 a, 61 . . . refrigerant channel
- 15 b . . . stator core
- 17 . . . rotor
- 19 . . . drive shaft
- 21 . . . lead wire
- 23 . . . cluster block
- 25 . . . coil
- 33 . . . connector
- 53, 54 . . . partition wall
- 53 a . . . cylindrical surface
- 55 . . . insertion path
- 57 . . . slit
- 59 . . . fitting member
Claims (14)
1. A motor-driven compressor comprising an electric driving mechanism, a compression mechanism that is driven by the electric driving mechanism, and performs compression of a refrigerant, and a motor drive circuit for driving the electric driving mechanism,
wherein the electric driving mechanism has a stator that is accommodated in a housing, and has a stator core and a coil provided at the stator core, a rotor rotatably provided in the stator, a drive shaft that is fixed to the rotor and drives the compression mechanism, a lead wire connected to the coil, and a cluster block for electrically connecting the lead wire to the motor drive circuit,
the housing has a main body portion in a cylindrical shape that forms a stator accommodation chamber in which the stator is accommodated in an inside thereof, a bulging portion that bulges in a radially outward direction from the main body portion, and forms a cluster block accommodation chamber in which the cluster block is accommodated in an inside thereof, and a partition wall that separates the stator accommodation chamber and the cluster block accommodation chamber in a radial direction, and
the housing supports the stator core at the main body portion and the partition wall, and has the lead wire disposed across the stator accommodation chamber and the cluster block accommodation chamber.
2. The motor-driven compressor according to claim 1 ,
wherein a wall surface at a side of the stator accommodation chamber, of the partition wall is a cylindrical surface that is coaxial with the main body portion.
3. The motor-driven compressor according to claim 1 ,
wherein between the stator accommodation chamber and the cluster block accommodation chamber, an insertion path that allows the lead wire to be inserted therethrough at a side of the compression mechanism is formed, and
the partition wall separates the stator accommodation chamber and the cluster block accommodation chamber except for the insertion path.
4. The motor-driven compressor according to claim 1 ,
wherein a wall surface at a side of the stator accommodation chamber, of the partition wall is a cylindrical surface that is coaxial with the main body portion,
between the stator accommodation chamber and the cluster block accommodation chamber, an insertion path that allows the lead wire to be inserted therethrough at a side of the compression mechanism is formed, and
the partition wall separates the stator accommodation chamber and the cluster block accommodation chamber except for the insertion path.
5. The motor-driven compressor according to claim 1 ,
wherein a wall surface at a side of the stator accommodation chamber, of the partition wall is a cylindrical surface that is coaxial with the main body portion,
between the stator accommodation chamber and the cluster block accommodation chamber, an insertion path that allows the lead wire to be inserted therethrough at a side of the compression mechanism is formed,
the partition wall separates the stator accommodation chamber and the cluster block accommodation chamber except for the insertion path, and
the lead wire is connected to the coil by a connector.
6. The motor-driven compressor according to claim 1 ,
wherein the cluster block is fixed to the stator core via a fitting member, and
in the partition wall, a slit is formed, which allows the stator accommodation chamber and the cluster block accommodation chamber to communicate with each other, allows the fitting member to be inserted therethrough, and extends in an axial direction of the drive shaft.
7. The motor-driven compressor according to claim 1 ,
wherein a wall surface at a side of the stator accommodation chamber, of the partition wall is a cylindrical surface that is coaxial with the main body portion,
the cluster block is fixed to the stator core via a fitting member, and
in the partition wall, a slit is formed, which allows the stator accommodation chamber and the cluster block accommodation chamber to communicate with each other, allows the fitting member to be inserted therethrough, and extends in an axial direction of the drive shaft.
8. The motor-driven compressor according to claim 1 ,
wherein the cluster block is fixed to the stator core via a fitting member,
in the partition wall, a slit is formed, which allows the stator accommodation chamber and the cluster block accommodation chamber to communicate with each other, allows the fitting member to be inserted therethrough, and extends in an axial direction of the drive shaft,
in the housing, a plurality of refrigerant channels that allow the refrigerant to circulate in the axial direction of the drive shaft are formed between the housing and the stator core, and
the slit and the respective refrigerant channels are equiangularly spaced from one another in a circumferential direction of the housing.
9. The motor-driven compressor according to claim 1 ,
wherein the cluster block is fixed to the stator core via a fitting member,
in the partition wall, a slit is formed, which allows the stator accommodation chamber and the cluster block accommodation chamber to communicate with each other, allows the fitting member to be inserted therethrough, and extends in an axial direction of the drive shaft,
in the housing, a plurality of refrigerant channels that allow the refrigerant to circulate in the axial direction of the drive shaft are formed between the housing and the stator core, and
the slit and the respective refrigerant channels are formed to have widths equal to one another in a circumferential direction of the housing.
10. A motor-driven compressor comprising an electric driving mechanism, a compression mechanism that is driven by the electric driving mechanism, and performs compression of a refrigerant, and a motor drive circuit for driving the electric driving mechanism,
wherein the electric driving mechanism has a stator that is accommodated in a housing, and has a stator core and a coil provided at the stator core, a rotor rotatably provided in the stator, a drive shaft that is fixed to the rotor and drives the compression mechanism, a lead wire connected to the coil, and a cluster block for electrically connecting the lead wire to the motor drive circuit,
the housing has a main body portion in a cylindrical shape that forms a stator accommodation chamber in which the stator is accommodated in an inside thereof, a bulging portion that bulges in a radially outward direction from the main body portion, and forms a cluster block accommodation chamber in which the cluster block is accommodated in an inside thereof, and a partition wall that separates the stator accommodation chamber and the cluster block accommodation chamber in a radial direction,
the housing supports the stator core at the main body portion and the partition wall, and has the lead wire disposed across the stator accommodation chamber and the cluster block accommodation chamber,
a wall surface at a side of the stator accommodation chamber, of the partition wall is a cylindrical surface that is coaxial with the main body portion,
between the stator accommodation chamber and the cluster block accommodation chamber, an insertion path that allows the lead wire to be inserted therethrough at a side of the compression mechanism is formed,
the partition wall separates the stator accommodation chamber and the cluster block accommodation chamber except for the insertion path,
the compression mechanism, the electric driving mechanism and the motor drive circuit are disposed in this sequence side by side along an axial direction of the drive shaft, and
the lead wire is connected to the coil located at a side of the compression mechanism by a connector.
11. The motor-driven compressor according to claim 10 ,
wherein in the housing, a plurality of refrigerant channels that allow the refrigerant to circulate in the axial direction of the drive shaft are formed between the housing and the stator core, and
the respective refrigerant channels are equiangularly spaced from one another in a circumferential direction of the housing.
12. A motor-driven compressor comprising an electric driving mechanism, a compression mechanism that is driven by the electric driving mechanism, and performs compression of a refrigerant, and a motor drive circuit for driving the electric driving mechanism,
wherein the electric driving mechanism has a stator that is accommodated in a housing, and has a stator core and a coil provided at the stator core, a rotor rotatably provided in the stator, a drive shaft that is fixed to the rotor and drives the compression mechanism, a lead wire connected to the coil, and a cluster block for electrically connecting the lead wire to the motor drive circuit,
the housing has a main body portion in a cylindrical shape that forms a stator accommodation chamber in which the stator is accommodated in an inside thereof, a bulging portion that bulges in a radially outward direction from the main body portion, and forms a cluster block accommodation chamber in which the cluster block is accommodated in an inside thereof, and a partition wall that separates the stator accommodation chamber and the cluster block accommodation chamber in a radial direction,
the housing supports the stator core at the main body portion and the partition wall, and has the lead wire disposed across the stator accommodation chamber and the cluster block accommodation chamber,
a wall surface at a side of the stator accommodation chamber, of the partition wall is a cylindrical surface that is coaxial with the main body portion,
the cluster block is fixed to the stator core via a fitting member,
in the partition wall, a slit is formed, which allows the stator accommodation chamber and the cluster block accommodation chamber to communicate with each other, allows the fitting member to be inserted therethrough, and extends in an axial direction of the drive shaft,
in the housing, a plurality of refrigerant channels that allow the refrigerant to circulate in the axial direction of the drive shaft are formed between the housing and the stator core,
the slit and the respective refrigerant channels are equiangularly spaced from one another and are formed to have widths equal to one another in a circumferential direction of the housing,
the compression mechanism, the electric driving mechanism and the motor drive circuit are disposed in this sequence side by side along the axial direction of the drive shaft, and
the lead wire is connected to the coil located at a side of the compression mechanism.
13. The motor-driven compressor according to claim 12 ,
wherein between the stator accommodation chamber and the cluster block accommodation chamber, an insertion path that allows the lead wire to be inserted therethrough at a side of the compression mechanism is formed,
the partition wall separates the stator accommodation chamber and the cluster block accommodation chamber except for the insertion path, and
the lead wire is connected to the coil by a connector.
14. The motor-driven compressor according to claim 1 ,
wherein the compression mechanism, the electric driving mechanism and the motor drive circuit are disposed in this sequence side by side along an axial direction of the drive shaft, and
the lead wire is connected to the coil located at a side of the compression mechanism.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013092547A JP2014214669A (en) | 2013-04-25 | 2013-04-25 | Motor compressor |
JP2013-092547 | 2013-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140322048A1 true US20140322048A1 (en) | 2014-10-30 |
Family
ID=51685254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/259,456 Abandoned US20140322048A1 (en) | 2013-04-25 | 2014-04-23 | Motor-driven compressor |
Country Status (5)
Country | Link |
---|---|
US (1) | US20140322048A1 (en) |
JP (1) | JP2014214669A (en) |
KR (1) | KR20140127774A (en) |
CN (1) | CN104121194A (en) |
DE (1) | DE102014207404A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10396621B2 (en) | 2016-02-08 | 2019-08-27 | Kabushiki Kaisha Toyota Jidoshokki | Electric compressor |
CN111740533A (en) * | 2019-03-25 | 2020-10-02 | 翰昂汽车零部件有限公司 | Carrier clamping feature for stator fixation for use in air conditioning compressors of vehicles |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6394907B2 (en) | 2015-05-12 | 2018-09-26 | 株式会社豊田自動織機 | Electric compressor |
JP6151324B2 (en) * | 2015-09-17 | 2017-06-21 | 三菱重工業株式会社 | Hermetic electric compressor |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6024168U (en) * | 1983-07-20 | 1985-02-19 | 三菱電機株式会社 | Semi-hermetic refrigerant compressor |
JP2009191761A (en) * | 2008-02-15 | 2009-08-27 | Denso Corp | Hermetic electric compressor |
JP5120153B2 (en) * | 2008-05-23 | 2013-01-16 | 株式会社豊田自動織機 | Electric compressor |
CN102132042B (en) * | 2008-09-01 | 2015-04-01 | 株式会社丰田自动织机 | Electric compressor |
JP4985590B2 (en) * | 2008-09-02 | 2012-07-25 | 株式会社豊田自動織機 | Electric compressor |
JP5505356B2 (en) * | 2011-03-31 | 2014-05-28 | 株式会社豊田自動織機 | Electric compressor |
-
2013
- 2013-04-25 JP JP2013092547A patent/JP2014214669A/en active Pending
-
2014
- 2014-04-17 DE DE102014207404.5A patent/DE102014207404A1/en not_active Withdrawn
- 2014-04-23 US US14/259,456 patent/US20140322048A1/en not_active Abandoned
- 2014-04-24 KR KR20140049553A patent/KR20140127774A/en not_active Application Discontinuation
- 2014-04-24 CN CN201410169196.7A patent/CN104121194A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10396621B2 (en) | 2016-02-08 | 2019-08-27 | Kabushiki Kaisha Toyota Jidoshokki | Electric compressor |
CN111740533A (en) * | 2019-03-25 | 2020-10-02 | 翰昂汽车零部件有限公司 | Carrier clamping feature for stator fixation for use in air conditioning compressors of vehicles |
Also Published As
Publication number | Publication date |
---|---|
DE102014207404A1 (en) | 2014-10-30 |
CN104121194A (en) | 2014-10-29 |
KR20140127774A (en) | 2014-11-04 |
JP2014214669A (en) | 2014-11-17 |
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Owner name: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:INAGAKI, TOMOYOSHI;ADANIYA, TAKU;NAGANO, HIROKI;AND OTHERS;SIGNING DATES FROM 20140410 TO 20140411;REEL/FRAME:032751/0511 |
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