EP3467308A1 - Compresseur de type hermétique - Google Patents

Compresseur de type hermétique Download PDF

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Publication number
EP3467308A1
EP3467308A1 EP18196173.1A EP18196173A EP3467308A1 EP 3467308 A1 EP3467308 A1 EP 3467308A1 EP 18196173 A EP18196173 A EP 18196173A EP 3467308 A1 EP3467308 A1 EP 3467308A1
Authority
EP
European Patent Office
Prior art keywords
housing
electric cable
terminal
body housing
pipe
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.)
Withdrawn
Application number
EP18196173.1A
Other languages
German (de)
English (en)
Inventor
Hajime Sato
Yogo Takasu
Youhei Hotta
Masahiro Taniguchi
Yoshiki Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Thermal Systems Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Thermal Systems Ltd filed Critical Mitsubishi Heavy Industries Thermal Systems Ltd
Publication of EP3467308A1 publication Critical patent/EP3467308A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • 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
    • F04B39/14—Provisions for readily assembling or disassembling
    • 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
    • F04B39/16—Filtration; Moisture separation

Definitions

  • the present invention relates to a hermetic type compressor.
  • a compressor installed in an air conditioning apparatus or a refrigerating cycle of a chiller for example, a hermetic type compressor installed in an outdoor unit has a cylindrical housing, and a compression mechanism, an electric motor, a crank shaft, and the like are housed in a housing.
  • a connecting terminal (for example, a hermetic terminal) is installed to penetrate through the housing.
  • a power cable to which power from an external power supply is supplied is connected to the connecting terminal, and power is supplied to the electric motor in the housing through the power cable disposed in the housing.
  • the following PTL 1 discloses a technology of installing three hermetic terminals having three conductive pins in an airtight container, in a hermetic type electric compressor.
  • a connecting terminal is installed in an outer peripheral surface of a housing
  • a connecting terminal is fixed to a cylindrical housing by welding, and therefore an inner peripheral surface of the housing is worked in a planar shape.
  • an electrode connected to the connecting terminal abuts on the outer peripheral surface of the housing, and therefore the outer peripheral surface of the housing is worked in the planar shape.
  • cutting work or sheet metal work is performed.
  • cutting work to a cylindrical surface is difficult, and much time and labor for preparing mounting of the connecting terminal are required.
  • Glass as an insulating material is built in the connecting terminal, and there is a possibility that the glass inside the connecting terminal is damaged by being affected by shrinkage fitting when a motor stator or a bearing case is incorporated in the housing, or heat generated at the time of welding of the connecting terminal to the housing.
  • the shape of the connecting terminal or the shapes of the various components are restricted such that a side, close to the inside of the housing, of the connecting terminal does not interfere with various components disposed in the housing, or the total height of the compressor needs to be increased by adjustment of the arrangement position of the connecting terminal or the various components.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a hermetic type compressor capable of relatively easily preparing mounting of a connecting terminal, and capable of reducing interference with various components disposed in a housing, while reducing thermal effect generated in the connecting terminal in assembly.
  • a hermetic type compressor includes: a first housing that has a cylindrical shape, and houses a component for a compressor therein; a second housing having a space different from the first housing; a connecting terminal that is fixed to the second housing, and is electrically connectable to an outside of the second housing; and an electric cable that is coupled with the connecting terminal and the component for a compressor, and electrically connects the connecting terminal and the component for a compressor, wherein the electric cable is disposed inside the second housing, inside the first housing, and inside a connecting part that connects the first housing and the second housing.
  • the connecting terminal is not fixed to the first housing, but is fixed to the second housing having the space different from the first housing.
  • the electric cable that electrically connects the connecting terminal connected to the second housing, and the component for a compressor housed in the first housing is disposed inside the second housing, inside the first housing, and inside the connecting part that connects the first housing and the second housing. Therefore, different from a conventional technology, the connecting terminal is not fixed to the first housing, and therefore inner and outer peripheral surfaces of the first housing each are not required to be worked in a planar shape.
  • the connecting terminal is fixed to the second housing, and is not fixed to the first housing by welding, and therefore the connecting terminal is not affected by heat generated in shrinkage fitting when a motor stator or a bearing case is incorporated in the first housing, or in welding. Furthermore, the connecting terminal does not interfere with various components disposed inside the first housing, and therefore by the connecting terminal, the shapes of the various components are not restricted, and arrangement positions of the various components are not required to be adjusted. Therefore, it may be possible to reduce the total height of the compressor.
  • the second housing may be provided apart from the first housing, and the connecting part may be a pipe that connects the first housing and the second housing.
  • the electric cable is disposed inside the pipe that connects the first housing and the second housing.
  • the second housing provided apart from the first housing is, for example, an accumulator, an oil tank, an oil separator, or the like. Additionally, the second housing may be an exclusive container for fixing the connecting terminal.
  • a pressure atmosphere inside the first housing and a pressure atmosphere inside the second housing may be substantially the same.
  • the electric cable that is disposed inside the pipe which connects the first housing and the second housing can be a continuous simple wire without using a hermetic terminal or the like.
  • the electric cable may have a first electric cable disposed inside the first housing, a second electric cable disposed inside the second housing, and a connector that connects the first electric cable and the second electric cable.
  • the second electric cable disposed inside the second housing, and the first electric cable disposed inside the first housing can be connected by the connector, and assembly of the hermetic type compressor is facilitated.
  • the hermetic type compressor may further include: a suction pipe that is connected to the first housing, and supplies a refrigerant into the first housing; and a bypass pipe that is branched from a middle of the suction pipe to allow the refrigerant to circulate, and is connected to the second housing.
  • the refrigerant is supplied into the first housing through the suction pipe connected to the first housing. Additionally, the refrigerant circulates from the suction pipe to the second housing through the bypass pipe branched from the middle of the suction pipe to be connected to the second housing. Consequently, the refrigerant is unlikely to be stagnated in the second housing, and it is possible to prevent temperature rise of the connecting terminal provided in the second housing.
  • a foreign matter removing part that removes a foreign matter contained in the refrigerant may be provided.
  • the foreign matter contained in the refrigerant that circulates from the suction pipe to the second housing through the bypass pipe is removed by the foreign matter removing part provided in the bypass pipe or the second housing.
  • the second housing may be provided above the first housing, the first housing and the second housing may be partitioned by a partition wall, and the connecting part may be the partition wall.
  • the electric cable is disposed inside the partition wall that partitions the first housing and the second housing.
  • the electric cable for example, an electric cable inside the first housing, and an electric cable inside the second housing are connected through another connecting terminal different from the connecting terminal and provided in the partition wall.
  • the present invention it is possible to relatively easily prepare mounting of a connecting terminal, and reduce interference with various components disposed in a housing, while reducing thermal effect generated in the connecting terminal in assembly.
  • a hermetic type compressor (hereinafter referred to as a "compressor") 1 is installed in, for example, an air conditioning apparatus or a refrigerating cycle of a chilling apparatus.
  • the compressor 1 has a body housing 2, and an oil tank 10. Inside the body housing 2, a compression mechanism 3, an electric motor 4, a crank shaft 5, and the like are housed.
  • the body housing 2 is an example of a first housing of the present invention, and has, for example, a cylindrical shape.
  • the body housing 2 has a plate thickness and a structure capable of bearing internal refrigerant pressure.
  • the compression mechanism 3 is, for example, a scroll compression mechanism.
  • the electric motor 4 is composed of a stator 6, and a rotor 7.
  • the crank shaft 5 is integrally coupled with the compression mechanism 3 and the rotor 7, and turning force generated in the rotor 7 is transmitted to the compression mechanism 3 through the crank shaft 5.
  • the compression mechanism 3 is disposed above the electric motor 4.
  • a suction pipe 8 is connected to a cylindrical outer peripheral surface of the body housing 2, and a discharge pipe 9 is connected to an upper surface of the body housing 2.
  • the oil tank 10 is composed of a cylindrical housing, and stores lubricating oil therein.
  • the oil tank 10 is an example of a second housing of the present invention, and is provided apart from the body housing 2.
  • the oil tank 10 is connected to a space of a low pressure atmosphere inside the body housing 2, the space being on an upstream side with respect to the compression mechanism 3 of the body housing 2 in a refrigerant flow, through a pipe 11 and a pipe 12.
  • the pipe 11 connects a lower part of the oil tank 10 and a lower part of the body housing 2, and allows lubricating oil to circulate.
  • the pipe 12 connects, for example, an upper part of the oil tank 10 and an intermediate part of the body housing 2, and enables circulation of a refrigerant.
  • the oil tank 10 maintains the refrigerant in a low pressure atmosphere before the refrigerant is compressed by the compression mechanism 3, through the pipe 11 and the pipe 12.
  • the pipe 12 is an example of a connecting part of the present invention, and has an electric cable 13 disposed therein.
  • the pipe 12 is, for example, a copper pipe, and is connected to the body housing 2 and the oil tank 10 by brazing. In a case of brazing, heat input at the time of pipe connection is smaller than heat input in a case of welding, and therefore it is possible to reduce thermal effect on a hermetic terminal (hereinafter referred to as a "terminal") 14, or distortion generated in the body housing 2 or the oil tank 10.
  • a terminal hermetic terminal
  • the electric motor 4 is an example of a component for a compressor of the present invention, and supplies power from an external power supply through the terminal 14 and the electric cable 13.
  • the electric motor 4 is installed in a space of a low pressure atmosphere inside the body housing 2, the space being on an upstream side with respect to the compression mechanism 3 of the body housing 2 in the refrigerant flow.
  • the terminal 14 in an upper surface of the oil tank 10, the terminal 14 is installed.
  • the upper surface of the oil tank 10 has a relatively smaller curvature than an outer peripheral surface having a cylindrical surface, and therefore is easily worked in a planar shape, and facilitates preparation for welding the terminal 14.
  • Other components are not disposed in an internal space of the oil tank 10, and therefore the inside of the terminal 14 does not interfere with other components.
  • the terminal 14 is an example of a connecting terminal of the present invention.
  • the electric cable 13 has a first end coupled with the terminal 14, and a second end coupled with the electric motor 4, and electrically connects the terminal 14 and the electric motor 4.
  • An outer peripheral surface of the electric cable 13 may be covered with, for example, a film sleeve.
  • the film sleeve is made of, for example, heat-resistant synthetic resin, or ceramics. Consequently, it is possible not only to secure electric insulation, but also to prevent a surface of the electric cable 13 from being damaged in assembly, or to prevent the electric cable 13 from being damaged by heat input in welding or in shrinkage fitting.
  • the electric cable 13 is disposed inside the oil tank 10, inside the pipe 12 that connects the oil tank 10 and the body housing 2, and inside the body housing 2.
  • the electric cable 13 has a first electric cable 13A, a second electric cable 13B, and a connector 13C.
  • the first electric cable 13A is disposed on the body housing 2 side, and at least a part of the first electric cable 13A is disposed inside the body housing 2.
  • the second electric cable 13B is disposed on the oil tank 10 side, and at least a part of the second electric cable 13B is disposed inside the oil tank 10.
  • the connector 13C connects the first electric cable 13A and the second electric cable 13B.
  • the electric cable 13 is not limited to the electric cable having the first electric cable 13A, the second electric cable 13B, and the connector 13C, but may be an electric cable with no connecting part such as a connector from the terminal 14 to the electric motor 4.
  • the terminal 14 is not fixed to the body housing 2, but is fixed to the oil tank 10 having another space different from the body housing 2. Therefore, different from a conventional technology, the terminal 14 is not fixed to the body housing 2, and therefore inner and outer peripheral surfaces of the body housing 2 each are not required to be worked in a planar shape. Accordingly, it is possible to reduce time and labor required for mounting preparation of the terminal 14.
  • the terminal 14 is fixed to the oil tank 10, and is not fixed to the body housing 2 by welding, and therefore the terminal 14 is not affected by heat generated in shrinkage fitting when the stator 6 or a bearing case (not illustrated) is incorporated in the body housing 2, or in welding. Accordingly, there is no risk that glass built in the terminal 14 as an insulator is damaged by thermal effect.
  • the terminal 14 does not interfere with various components disposed inside the body housing 2, and therefore by the effect of the terminal 14, the shapes of the various components are not restricted, and arrangement positions of the various components are not required to be adjusted. Therefore, the various components are suitably disposed inside the body housing 2, so that it may be possible to reduce the total height of the compressor 1.
  • a pressure atmosphere inside the body housing 2, a pressure atmosphere inside the oil tank 10, and a pressure atmosphere inside the pipe 12 are substantially the same, and therefore the electric cable 13 can be a continuous simple wire without using the hermetic terminal or the like.
  • the terminal 14 is installed in the oil tank 10 connected to the internal space on the low pressure side of the body housing 2.
  • the present invention is not limited to this example.
  • the terminal 14 may be installed in an accumulator (not illustrated) connected to the internal space on the low pressure side of the body housing 2.
  • a pipe that connects the body housing 2 and the accumulator is provided, and the electric cable 13 is disposed in this pipe.
  • the single compression mechanism 3 is provided in the body housing 2.
  • a compressor 1 is a multistage compressor, and a compression mechanism 3A on a low stage side, and a compression mechanism 3B on a high stage side may be installed in a body housing 2.
  • an electric motor 4 is installed in a space of an intermediate pressure atmosphere inside the body housing 2, the space being on a downstream side with respect to the compression mechanism 3A on the low stage side of the body housing 2 and on an upstream side with respect to the compression mechanism 3B on the high stage side in a refrigerant flow.
  • an oil tank 15 is connected to a space of an intermediate pressure atmosphere inside the body housing 2.
  • a terminal 14 is installed in the oil tank 15, and an electric cable 13 is disposed inside a pipe 16 that connects the body housing 2 and the oil tank 15.
  • the present invention is applicable to a case where a compressor 1 has a single rotary compression mechanism 3, and an electric motor 4 is installed in a space of a high pressure atmosphere inside a body housing 2, the space being on a downstream side with respect to the compression mechanism 3 of the body housing 2 in a refrigerant flow, as illustrated in Fig. 3 .
  • the compression mechanism 3 is disposed below the electric motor 4.
  • an oil separator 17 is connected to the space of the high pressure atmosphere inside the body housing 2.
  • a terminal 14 is installed in the oil separator 17, and an electric cable 13 is disposed in a pipe 18 that connects the body housing 2 and the oil separator 17.
  • the electric cable 13 is disposed in the pipe 12, 16, 18 different from the existing pipe 11 or discharge pipe 9 functionally connected to the body housing 2 and the oil tank 10, 15, the accumulator or the oil separator 17 of the compressor 1.
  • the present invention is not limited to this example. That is, the electric cable 13 may be disposed in the existing pipe 11 or discharge pipe 9 functionally connected to the body housing 2, and the oil tank 10, 15, the accumulator or the oil separator 17 of the compressor 1 without separately installing the pipe 12, 16, 18.
  • the diameter of the existing pipe 11 or discharge pipe 9 is preferably increased.
  • the terminal 14 is installed in the oil tank 10, 15, the accumulator or the oil separator 17 which is installed along with the body housing 2 of the compressor 1, and has another function.
  • the present invention is not limited to this example.
  • an exclusive container 20 for fixing a terminal 14 is installed.
  • the container 20 is an example of the second housing of the present invention, and is provided apart from a body housing 2.
  • the container 20 is composed of a cylindrical housing.
  • the container 20 includes, for example, two disks 20a, 20b facing each other, and a cylindrical part 20c having respective ends provided with the disks 20a, 20b, and the terminal 14 is installed in the disk 20a.
  • the container 20 is connected to a space of a low pressure atmosphere inside a body housing 2, the space being on an upstream side with respect to a compression mechanism 3 of the body housing 2 in a refrigerant flow, through a pipe 21.
  • the pipe 21 connects the container 20 and an intermediate part of the body housing 2.
  • the container 20 maintains a refrigerant in a low pressure atmosphere before the refrigerant is compressed by the compression mechanism 3, through the pipe 21.
  • the pipe 21 is an example of the connecting part of the present invention, and has an electric cable 13 disposed therein.
  • the pipe 21 is, for example, a copper pipe, and is connected to the body housing 2 and the container 20 by brazing.
  • the electric cable 13 has a first end coupled with the terminal 14, and a second end coupled with the electric motor 4, and electrically connects the terminal 14 and the electric motor 4.
  • a bypass pipe 22 branched from the middle of a suction pipe 8 to allow the refrigerant to circulate may be connected.
  • the refrigerant circulates from the suction pipe 8 to the container 20 through the bypass pipe 22. Consequently, the terminal 14 is cooled by the refrigerant that circulates through the bypass pipe 22 and the container 20. Additionally, the refrigerant is unlikely to be stagnated in the container 20, and it is possible to prevent temperature rise of the terminal 14 provided in the container 20.
  • a refrigerant amount to be supplied to the container 20 through the bypass pipe 22 may be part or all of a refrigerant to be sucked.
  • a foreign matter removing part 23 that removes a foreign matter contained in the refrigerant may be provided in the bypass pipe 22 or the container 20.
  • the foreign matter removing part 23 is, for example, a strainer or a filter. Consequently, metal powder and the like contained in the refrigerant enter in the vicinity of a pin on the inner side of the terminal 14, and it is possible to prevent a short-circuit caused by contact of the metal powder and the like with the pin.
  • the pipe 21 only needs to allow the container 20 to be connected to the space of the low pressure atmosphere inside the body housing 2.
  • the pipe 21 may be connected to the body housing 2 above the electric motor 4, or may be connected to the body housing 2 below the electric motor 4.
  • the pipe 21 may be linear, and plate surfaces of the disks 20a, 20b of the container 20 may disposed to be directed to the lateral sides, or as illustrated in Fig. 6 , the pipe 21 may have a shape bent by, for example, 90°, and the plate surface of the disk 20a of the container 20 may be disposed to be directed downward, and the plate surface of the disk 20b may be disposed to be directed upward. Consequently, the container 20 can be prevented from becoming an obstacle in welding of the body housing 2 to the pipe, or in shrinkage fitting when the bearing case is incorporated. Additionally, it is possible to avoid interference with components disposed around the body housing 2.
  • the terminal 14 is not fixed to the body housing 2, but is fixed to the container 20 having another space different from the body housing 2. Therefore, also in this embodiment, similarly to the first embodiment, different from a conventional technology, the terminal 14 is not fixed to the body housing 2, and therefore inner and outer peripheral surfaces of the body housing 2 each are not required to be worked in a planar shape. Accordingly, it is possible to reduce time and labor required for mounting preparation of the terminal 14.
  • the terminal 14 is fixed to the container 20, and is not fixed to the body housing 2 by welding, and therefore the terminal 14 is not affected by heat generated in shrinkage fitting when the stator 6 or the bearing case (not illustrated) is incorporated in the body housing 2, or in welding. Accordingly, there is no risk that glass built in the terminal 14 as an insulator is damaged by thermal effect.
  • the terminal 14 does not interfere with various components disposed inside the body housing 2, and therefore by the effect of the terminal 14, the shapes of the various components are not restricted, and arrangement positions of the various components are not required to be adjusted. Therefore, the various components are suitably disposed inside the body housing 2, so that it may be possible to reduce the total height of the compressor 1.
  • the container 20 is connected to the space of the low pressure atmosphere of the body housing 2.
  • the container 20 may be connected to a space of an intermediate pressure atmosphere, or a space of a high pressure atmosphere in accordance with the configuration of the compressor 1, similarly to the first embodiment.
  • the terminal 14 is installed in the housing (for example, the oil tank 10, 15, the accumulator or the oil separator 17, or the container 20) having substantially the same pressure atmosphere as the inside of the body housing 2 where the electric motor 4 is installed.
  • the present invention is not limited to this example.
  • a terminal 14 is installed in a space having a pressure atmosphere different from an internal space where an electric motor 4 is installed.
  • a body housing 30 has a low pressure side housing part 31 and a high pressure side housing part 32.
  • the body housing 30 has a cylindrical shape, the low pressure side housing part 31 is located below the body housing 30, and the high pressure side housing part 32 is located above the body housing 30.
  • the low pressure side housing part 31 is an example of the first housing of the present invention, and the high pressure side housing part 32 is an example of the second housing of the present invention.
  • a compression mechanism 3 and the electric motor 4 are installed inside the low pressure side housing part 31, a compression mechanism 3 and the electric motor 4 are installed.
  • the low pressure side housing part 31 and the high pressure side housing part 32 are partitioned by a discharge cover 34.
  • the discharge cover 34 is an example of a partition wall of the present invention.
  • a refrigerant compressed by the compression mechanism 3 is discharged to a space inside the high pressure side housing part 32 formed between the discharge cover 34 and the body housing 30, and thereafter is discharged from a discharge pipe 9 installed in an upper surface of the body housing 30.
  • a hermetic terminal (hereinafter referred to as a "terminal") 35 different from the terminal 14 is installed in the discharge cover 34.
  • the discharge cover 34 is an example of a connecting part of the present invention.
  • the terminal 14 in the upper surface of the body housing 30, the terminal 14 is installed.
  • the upper surface of the body housing 30 has a relatively smaller curvature than an outer peripheral surface having a cylindrical surface, and therefore is easily worked in a planar shape, and facilitates preparation for welding the terminal 14.
  • Other components are not disposed in a space inside the high pressure side housing part 32 between the body housing 30 and the discharge cover 34, and therefore the inner side of the terminal 14 does not interfere with the other components.
  • An electric cable 36 has a first end coupled with the terminal 14, and a second end coupled with the electric motor 4, and electrically connects the terminal 14 and the electric motor 4.
  • the electric cable 36 is disposed inside the high pressure side housing part 32, inside the terminal 35 installed in the discharge cover 34, and inside the low pressure side housing part 31.
  • the electric cable 36 has a first electric cable 36A, and a second electric cable 36B.
  • a first electric cable 13A is disposed on the low pressure side housing part 31 side, and at least a part of the first electric cable 13A is disposed inside the low pressure side housing part 31.
  • a second electric cable 13B is disposed on the high pressure side housing part 32 side, and at least a part of the second electric cable 13B is disposed inside the high pressure side housing part 32.
  • the first electric cable 36A and the second electric cable 36B are connected to each other through the terminal 35.
  • the terminal 14 is not fixed to an outer peripheral surface of the body housing 30, but is fixed to an upper surface of the body housing 30. Therefore, different from a conventional technology, the terminal 14 is not fixed to the outer peripheral surface of the body housing 30, and therefore inner and outer peripheral surfaces of the body housing 30 each are not required to be worked in a planar shape. Accordingly, it is possible to reduce time and labor required for mounting preparation of the terminal 14.
  • the terminal 14 does not interfere with various components disposed inside the body housing 30, and therefore by the effect of the terminal 14, the shapes of the various components are not restricted, and arrangement positions of the various components are not required to be adjusted. Therefore, the various components are suitably disposed inside the body housing 30, so that it may be possible to reduce the total height of the compressor 1.
  • an example of the electric cable and the connecting terminal that supplies power to the electric motor.
  • the present invention is not limited to this example.
  • the component for a compressor is not the electric motor 4, and may be electric and electronic components installed on a control board, and the electric cable may be a cable for control, and the connecting terminal may be a component for control.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
EP18196173.1A 2017-10-05 2018-09-24 Compresseur de type hermétique Withdrawn EP3467308A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017195163A JP6987591B2 (ja) 2017-10-05 2017-10-05 密閉型圧縮機

Publications (1)

Publication Number Publication Date
EP3467308A1 true EP3467308A1 (fr) 2019-04-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18196173.1A Withdrawn EP3467308A1 (fr) 2017-10-05 2018-09-24 Compresseur de type hermétique

Country Status (2)

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EP (1) EP3467308A1 (fr)
JP (1) JP6987591B2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114599880A (zh) * 2019-10-31 2022-06-07 株式会社牧田 空气压缩机

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WO2007007610A1 (fr) * 2005-07-13 2007-01-18 Daikin Industries, Ltd. Compresseur
US20100209266A1 (en) * 2007-09-25 2010-08-19 Hideo Ikeda Electric compressor integral with drive circuit
JP2011229221A (ja) 2010-04-16 2011-11-10 Hitachi Appliances Inc 密閉形電動圧縮機，冷凍サイクル装置
WO2012029001A2 (fr) * 2010-09-02 2012-03-08 BSH Bosch und Siemens Hausgeräte GmbH Appareil réfrigérant et câblage
US20120174620A1 (en) * 2009-09-25 2012-07-12 Toshiba Carrier Corporation Hermetic compressor and refrigeration cycle equipment using the same
US20130320792A1 (en) * 2012-05-30 2013-12-05 Kabushiki Kaisha Toyota Jidoshokki Motor-driven compressor
WO2017145712A1 (fr) * 2016-02-22 2017-08-31 旭硝子株式会社 Compresseur et système à cycle thermique

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