[Technical Field]
[0001] The present invention relates to a hermetic type compressor.
[Background Art]
[0002] 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.
[0003] 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.
[0004] 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.
[Citation List]
[Patent Literature]
[0005] [PTL 1] Japanese Unexamined Patent Application, Publication
[Summary of Invention]
[Technical Problem]
[0006] Conventionally, in a case where 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.
Additionally, 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. In order to work the inner and outer peripheral
surfaces of the housing in the planar shape, cutting work or sheet metal work is performed.
However, cutting work to a cylindrical surface is difficult, and much time and labor
for preparing mounting of the connecting terminal are required.
[0007] 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.
[0008] Further, 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.
[0009] 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.
[Solution to Problem]
[0010] A hermetic type compressor according to an aspect of the present invention 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.
[0011] According to this configuration, 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. Additionally, 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.
[0012] In the above aspect, 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.
[0013] According to this configuration, 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.
[0014] In the above aspect, a pressure atmosphere inside the first housing and a pressure
atmosphere inside the second housing may be substantially the same.
[0015] According to this configuration, 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.
[0016] In the above aspect, 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.
[0017] According to this configuration, in a case where the second housing side is assembled
separately from the first housing, 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.
[0018] In the above aspect, 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.
[0019] According to this configuration, 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.
[0020] In the above aspect, in the bypass pipe or the second housing, a foreign matter removing
part that removes a foreign matter contained in the refrigerant may be provided.
[0021] According to this configuration, 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.
[0022] In the above aspect, 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.
[0023] According to this configuration, the electric cable is disposed inside the partition
wall that partitions the first housing and the second housing. In 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.
[Advantageous Effects of Invention]
[0024] According to 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.
[Brief Description of Drawings]
[0025]
[Fig. 1] Fig 1 is a longitudinal sectional view illustrating a hermetic type compressor
according to a first embodiment of the present invention.
[Fig. 2] Fig. 2 is a longitudinal sectional view illustrating a first modification
of the hermetic type compressor according to the first embodiment of the present invention.
[Fig. 3] Fig. 3 is a longitudinal sectional view illustrating a second modification
of the hermetic type compressor according to the first embodiment of the present invention.
[Fig. 4] Fig. 4 is a longitudinal sectional view illustrating a hermetic type compressor
according to a second embodiment of the present invention.
[Fig. 5] Fig. 5 is a perspective view illustrating a container of the hermetic type
compressor according to the second embodiment of the present invention.
[Fig. 6] Fig. 6 is a longitudinal sectional view illustrating a modification of the
hermetic type compressor according to the second embodiment of the present invention.
[Fig. 7] Fig. 7 is a longitudinal sectional view illustrating a hermetic type compressor
according to a third embodiment of the present invention.
[Description of Embodiments]
(First Embodiment)
[0026] Hereinafter, a first embodiment of the present invention will be described with reference
to Fig. 1.
[0027] A hermetic type compressor (hereinafter referred to as a "compressor") 1 according
to the first embodiment of the present invention 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.
[0028] 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.
[0029] In the compressor 1 according to this embodiment, 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] In this embodiment, 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.
[0034] 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.
[0035] 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.
[0036] Consequently, in a case where the oil tank 10 side is assembled separately from the
body housing 2, the second electric cable 13B disposed inside the oil tank 10, and
the first electric cable 13A disposed inside the body housing 2 can be connected by
the connector 13C, and assembly of the compressor 1 is facilitated. When assemblability
of the compressor 1 is not considered, 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.
[0037] According to this embodiment, 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.
[0038] 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.
[0039] Furthermore, 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.
[0040] 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.
[0041] In the above embodiment, 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. However, the
present invention is not limited to this example. For 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. In this case, a pipe that connects the
body housing 2 and the accumulator is provided, and the electric cable 13 is disposed
in this pipe.
[0042] In the above embodiment, the single compression mechanism 3 is provided in the body
housing 2. However, the present invention is not limited to this example. As illustrated
in Fig. 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. In this case, 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.
[0043] In the body housing 2, an oil tank 15 is connected to a space of an intermediate
pressure atmosphere inside the body housing 2. In this case, 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.
[0044] Furthermore, 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. In this case, in the body housing 2, an oil separator
17 is connected to the space of the high pressure atmosphere inside the body housing
2. Accordingly, 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.
[0045] In each of the above embodiment and modifications, 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. However, 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. In this case, in consideration of a pressure loss
by the electric cable 13, the diameter of the existing pipe 11 or discharge pipe 9
is preferably increased.
(Second Embodiment)
[0046] Now, a second embodiment of the present invention will be described with reference
to Fig. 4 and Fig. 5. Hereinafter, detailed description of configurations and effects
which are the same as configurations and the effects of the first embodiment will
be omitted.
[0047] In the above first embodiment, 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. However, the present invention is
not limited to this example.
[0048] In this embodiment, 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.
[0049] 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.
[0050] 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.
[0051] 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.
[0052] In this embodiment, in a case where only the pipe 21 is connected to the container
20, the refrigerant is supplied from the body housing 2 to the container 20, and thereafter
is retained inside the container 20. Therefore, to the container 20, a bypass pipe
22 branched from the middle of a suction pipe 8 to allow the refrigerant to circulate
may be connected.
[0053] In this case, 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.
[0054] In a case where the refrigerant is supplied to the container 20 through the bypass
pipe 22, 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.
[0055] 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. As illustrated in Fig. 4, 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. As illustrated in Fig.
4 and Fig. 5, 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.
[0056] According to this embodiment, 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.
[0057] 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.
[0058] Furthermore, 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.
[0059] In the above embodiment, the container 20 is connected to the space of the low pressure
atmosphere of the body housing 2. However, the present invention is not limited to
this example. 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.
(Third Embodiment)
[0060] Now, a third embodiment of the present invention will be described with reference
to Fig. 7. Hereinafter, detailed description of configurations and effects which are
the same as configurations and the effects of the first and second embodiments will
be omitted.
[0061] In the first and second embodiments, 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. However, the present invention
is not limited to this example.
[0062] In this embodiment, a terminal 14 is installed in a space having a pressure atmosphere
different from an internal space where an electric motor 4 is installed.
[0063] In a compressor 1 according to this embodiment, 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.
[0064] 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.
[0065] A hermetic terminal (hereinafter referred to as a "terminal") 35 different from the
terminal 14 is installed in the discharge cover 34. In this case, the discharge cover
34 is an example of a connecting part of the present invention.
[0066] In this embodiment, 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.
[0067] 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.
[0068] 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.
[0069] According to this embodiment, 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.
[0070] 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.
[0071] In each of the above first to third embodiments, an example of the electric cable
and the connecting terminal (hermetic terminal) that supplies power to the electric
motor. However, the present invention is not limited to this example. For 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.
[Reference Signs List]
[0072]
- 1
- hermetic type compressor (compressor)
- 2
- body housing
- 3, 3A, 3B
- compression mechanism
- 4
- electric motor
- 5
- crank shaft
- 6
- stator
- 7
- rotor
- 8
- suction pipe
- 9
- discharge pipe
- 10
- oil tank
- 11, 12
- pipe
- 13
- electric cable
- 13A
- first electric cable
- 13B
- second electric cable
- 13C
- connector
- 14
- hermetic terminal (terminal)
- 15
- oil tank
- 16
- pipe
- 17
- oil separator
- 18
- pipe
- 20
- container
- 21
- pipe
- 22
- bypass pipe
- 23
- foreign matter removing part
- 30
- body housing
- 31
- low pressure side housing part
- 32
- high pressure side housing part
- 34
- discharge cover
- 35
- hermetic terminal (terminal)
- 36
- electric cable
- 36A
- first electric cable
- 36B
- second electric cable