Compressor with built-in motor, and mobile structure using the same

Information

  • Patent Grant
  • 6808372
  • Patent Number
    6,808,372
  • Date Filed
    Friday, June 7, 2002
    22 years ago
  • Date Issued
    Tuesday, October 26, 2004
    19 years ago
Abstract
In a compressor, an inverter control device that performs an inverter control on an electric motor is integrally provided on a body portion of a container which houses a compression mechanism and the electric motor which are axially arranged in a line. The inverter control device is connected to the electric motor to shorten the distance of wiring from the inverter device to the motor to allow the reduction in weight, the reduction in a space to be required for the installation, and the reduction in the amount of noise.
Description




The present disclosure relates to subject matter contained in priority Japanese Patent Application No. 2001-174430, filed on Jun. 8, 2001, the contents of which is herein expressly incorporated by reference in its entirety.




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a compressor with a built-in electric motor which is suitable to be mounted on a mobile structure such as a motor vehicle. The invention also relates to a mobile structure having such a compressor.




2. Description of Related Art




In a vehicle driven only by an engine, a compressor driven by the engine has been used for air-conditioning the vehicle compartment with the compressor being mounted alongside of the engine.




Hybrid vehicles having both an engine and an electric motor and traveling by use of one of them according to conditions have been practically used for going on public roads. Air-conditioning of the vehicle compartment of this hybrid vehicle is made by a refrigerating compressor driven by the engine in the same manner as conventional engine-driven vehicles, which is mounted alongside of the engine.




It is proposed that the engines of hybrid vehicles should be shut off while they are temporarily stationary at a place such as a traffic light in order to reduce effects of the engine upon the environment. When the proposal is followed with a vehicle where a compressor driven by the engine is used, air-conditioning stops each time when the vehicle stops, causing problem for the driver and passengers in the compartment in summer and winter seasons, and especially in regions with extremely cold or hot climate.




For solving such a problem, there is an idea of adopting a compressor


153


to be driven by an electric motor, especially a compressor to be used for air-conditioning in a building as shown in FIG.


2


. The compressor with a built-in electric motor is housed in a container


152


made of iron, together with a compression mechanism


150


and an electric motor


151


. In the hybrid vehicle, furthermore, the arrangement of devices in an engine room is based on that of the conventional motor vehicle. Thus, there is no space or location for installing the conventional compressor with the built-in electric motor for air-conditioning in the building in the engine room.




What is worse, the conventional compressor with the built-in electric motor has large axial dimensions. That is, a discharge port


154


, a suction port


155


, inner and outer electric connection parts


156


, and a mounting leg portion


157


are longitudinally extended from both ends of the container


152


. Such a complicated construction of the compressor is hardly incorporated in an electric-powered vehicle which has been only realized in a small-sized vehicle.




Simultaneously, the conventional compressor with the built-in electric motor is made of iron, so that the total weight thereof is about 9 kg or more. Thus, it becomes a problem in realizing the high speed and the energy saving because of the increase in driving load when it is mounted on the mobile structure.




It becomes urgent business to provide a small-sized and lightweight compressor with a built-in electric motor now in a tendency of planning an electric operation of various kinds of load by using a working voltage of 42 volts in a gasoline-powered vehicle, a hybrid vehicle, or an electric-powered vehicle. For this reason, it is considered to use a compressor


159


with a built-in electric motor having a container


158


made of aluminum as shown in FIG.


3


.




An electric motor


160


is operated under the inverter control so as to correspond to various kinds of conditions. An inverter control device


161


responsible for the inverter control and the compressor


159


are mounted on an appropriate fixing member in the vicinity thereof. As shown in

FIG. 3

, when the compressor


159


is fixed on the engine


162


, the inverter control device


161


is fixed and supported on another fixing member


163


to avoid the high temperature engine


162


.




However, even though the working voltage increases from 12 volts to 42 volts, it is still a low voltage compared with a working voltage of about 100 volts to 200 volts which is used for an air conditioning intended for home use. Consequently, if it tends to obtain the same output as that of about 100 volts to 200 volts, there is a need to feed a large current. For addressing such a requirement, a plurality of wirings for supplying the electric power between the inverter control device


161


and a terminal


164


provided on the container


158


, a plurality of wirings for supplying the electric power between the terminal


164


and the electric motor


160


, and an electrode are increased in size, thereby increasing the weight of the compressor. Furthermore, the generation of noise may be increased to influence on the peripheral electronic devices. In each of the cases, it will be a problem for mounting on the vehicle. What is worse, the increase in size leads to the increase in cost.




SUMMARY OF THE INVENTION




An object of the present invention is to provide a compressor with a built-in electric motor suitable for a mobile structure without causing the increase in weight, cost, and noise by shortening the wiring distance from the inverter device to the electric motor. Another object of the invention is to provide a mobile structure having such a compressor with a built-in electric motor.




To achieve the above objects, a first aspect of the present invention is to provide a compressor with a built-in electric motor, including: a compression mechanism; the built-in electric motor for driving the compression mechanism; and a container for housing the compression mechanism and the built-in electric motor, wherein an inverter control device that performs an inverter control on the built-in electric motor is integrally provided on a part of the container and is connected to the electric motor.




According to such a configuration, since the inverter control device is provided on a part of the container, there is no need to provide comparatively long external wirings for connecting between the inverter control device and the container when the built-in electric motor housed in the container together with the compression mechanism is subjected to an inverter control by the inverter control device to operate the compression mechanism under various conditions. In addition, a single terminal can be shared between the connections for the inverter control device and the electric motor, so that one of the terminals conventionally used is removed. Accordingly, when it is mounted on the vehicle and used at a low voltage of 12 volts or 42 volts where the number of wirings and the size of electrode are increased, the wiring distance is shortened due to the elimination of external wirings, and the decrease in weight of the compressor is achieved because of reducing one of the terminals. Furthermore, the space for mounting the compressor including the inverter control device is reduced, so that the compressor is more easily mounted on the vehicle. Besides, there is an advantage in driving load and also in cost reduction.




A second aspect of the invention is to provide a compressor with a built-in electric motor, wherein an inverter control device that performs an inverter control on the built-in electric motor is integrally provided on a body of the container in which the compression mechanism and the electric motor are housed such that they are axially arranged in a line, and the inverter control device is connected to the electric motor.




According to such a configuration, the electric connection part of the inverter control device and the electric connection part of the electric motor housed in the body portion of the container become closer to each other. Thus, the length of the wiring in the container id reduced, and the weight and cost of the compressor depending on the wiring is reduced. Furthermore, the compressor of the present embodiment is easily installed in a restricted space of the vehicle since there is no need to increase the axial dimension of the container.




While novel features of the invention are set forth in the preceding, the invention, both as to organization and content, can be further understood and appreciated, along with other objects and features thereof, from the following detailed description and examples when taken in conjunction with the attached drawings.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a cross sectional view of a compressor having a built-in electric motor in a state of being mounted on an engine according to one embodiment of the present invention;





FIG. 2

is a side view of a conventional compressor having a built-in electric motor in a container made of iron; and





FIG. 3

is a cross sectional view of a conventional compressor having a built-in electric motor in a container made of aluminum.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




Hereinafter, a compressor with a built-in electric motor as one of preferred embodiments of the present invention and a mobile structure having such a compressor will be described with reference to the accompanying drawings for facilitating the understanding of the invention.




In this embodiment, the compressor is a scroll type compressor with a built-in electric motor to be mounted on an engine of a hybrid vehicle. However, the invention is not limited to such a type of compressor. The present invention is also applicable to any compressor for air-conditioning of the interior of a room in addition to the vehicle compartment of a typical mobile structure such as a motor vehicle, exerting the advantages of weight reduction and miniaturization. According to the invention, various kinds of compression mechanisms, for example rotary and reciprocation type compression mechanisms, may be used. Furthermore, any vertical type compressor may be used.




As shown in

FIG. 1

, a hybrid vehicle


27


includes a gasoline-powered engine


2


and a motor


3


to be driven by the supply of power from a battery


1


. The battery


1


is a rechargeable battery. While the vehicle runs using the engine


2


, the battery


1


is charged. While the battery


1


has a sufficient charged capacity, the motor


3


is controlled to receive the supply of power for driving the vehicle with the motor


3


to restrict the discharge of exhaust gas to a minimum. When the vehicle is running with the engine


2


, the engine


2


is controlled such that the engine


2


is stopped while the vehicle is temporally stopped, for example at a traffic light.




In this embodiment, as shown in

FIG. 1

, a compressor


11


driven by a built-in electric motor


13


is used for an air-conditioning of the vehicle compartment of the hybrid vehicle. The compressor


11


is constructed to receive the supply of power from the battery


1


to keep the air-conditioning of the vehicle compartment even though the vehicle running with the engine


2


is temporally stopped at a traffic light or the like and the engine


2


is stopped.




As shown in

FIG. 1

, a scroll type compression mechanism


10


and the electric motor


13


having a driving shaft


14


to drive the compression mechanism


10


are housed in a container


12


, to constitute the compressor


11


. Under the control of an inverter control device


101


, the electric motor


13


is operated by the supply of power through a terminal


15


provided as inner and exterior electric connection parts of the container


12


to actuate the compressor


10


. The compressor


10


inspires a refrigerant after passing through a refrigeration cycle via a suction port


16


of the container


12


to compress the refrigerant. Then, the compressed refrigerant is discharged into the inside of the container


12


to cool the electric motor


13


, followed by discharging the refrigerant to an external pipe via a discharge port


17


of the container


12


to supply the refrigerant to the refrigeration cycle. Subsequently, these steps are repeated. The terminal


15


includes a body part


15




a,


an inner terminal


15




b,


and an external terminal


15




c.


In addition, the terminal


15


has a sealing structure. That is, the inner and external terminals


15




b,




15




c


are connected to each other and pass through the body part


15




a,


where the passing-through portion of the body part


15




a


is sealed with a sealant such as a glass sealant.




In the container


12


, there is oil


18


being stored. The oil is inhaled by a pump


19


driven by the driving shaft


14


. The oil is then supplied to a main bearing


21


of a main axial part


14




b


of the driving shaft


14


on the side of the compression mechanism


10


, a bearing


22


of a coupling portion between the main axial part


14




b


and the compression mechanism


10


, and a sliding portion of the compression mechanism


10


to make smooth. After lubricating the bearings and the sliding portion, the oil


18


seeps through each lubricating object by means of a supply pressure and then returns to the inside of the container


12


, followed by repeating such a lubricating process. By means of the action of a compatibility, a part of the refrigerant to be discharged into the container


12


brings the oil


18


stored in an oil storage portion


24


in the container


12


into a part such as a sub-bearing


23


which cannot be supplied with oil


18


by the pump


19


, lubricating the sub-bearing


23


or the like. The sub-bearing


23


is responsible for bearing a sub-axial part


14




a


on the side of the driving shaft


14


opposite to the compression mechanism


10


. Consequently, the compressor


11


having the built-in electric motor of the present embodiment satisfies the requirements for maintenance free.




In the present embodiment, as shown in

FIG. 1

, an electrical connection between the inverter control device


101


and the container


12


is simplified. In this embodiment, that is, the inverter control device


101


is integrally mounted on a part of the container


12


. The inverter control device


101


is electrically connected by an internal wiring


102


to the electric motor


13


by making a connection between the terminal


15


and a connection terminal


104


on the end of a coil


13




b


provided as a part of a stator


13




a


of the electric motor


13


. The electric motor


13


, which is housed in the container


12


together with the compression mechanism


10


, is operated by being subjected to an inverter control by means of the inverter control device


101


, allowing the compression mechanism


10


to work under the various kinds of conditions. In brief, a plurality of comparatively long external wirings, as shown in

FIGS. 2 and 3

, which connect between the inverter control device


101


and the container


12


, are not required since the inverter control device


101


is mounted on a part of the container


12


. In the conventional compressor, by the way, each of the inverter control unit and the electric motor requires its own terminal. In this embodiment, however, the terminal


15


can be shared for connecting between the inverter control unit


101


and the electric motor


13


. The present embodiment is able to delete one of the terminals


15


, which are conventionally required for both the electric motor and the inverter control device. That is, even though the dimensions of the wiring parts and the electrodes are increased as the compressor is installed in the vehicle


27


and is then used at a low voltage of 12 volts or 42 volts, the wiring distance is significantly shortened as much as a unnecessary part of the external wiring and one of the terminals are removed. Thus, the weight of the compressor is smaller than that of the conventional one. In addition, an installation space including the space for installing the inverter control device


101


is reduced, so that the compressor is easily mounted on the vehicle


27


. There is also an advantage in driving load and also in cost reduction.




The inverter control device


101


is integrally mounted on a body portion


12




a


of the container


12


in which the compression mechanism


10


and the electric motor


13


are arranged in a line in the axial direction. Thus, comparing with the conventional one, the distance between an electric connection part of the inverter control device


101


and an electric connection part of the electric motor


13


housed in the body portion


12




a


of the container


12


(i.e., in the embodiment shown in the figure, the distance between the terminal


15


and the connection terminal


104


) is shortened because of the integration of the inverter control device


101


with the body portion


12




a.


Thus, the length of wiring by the internal wiring


102


in the container


12


is also shortened, and the weight and cost of the compressor depending on the wiring is reduced. Furthermore, the compressor of the present embodiment is easily installed in a restricted space of the vehicle


27


or the like since there is no increase in the axial dimension of the container


12


even though the inverter control device


101


is provided thereon.




As shown in

FIG. 1

, the inverter control device


101


includes an electrode part


105


and an inverter part


106


which are electrically connected to each other. The inverter part


106


, for example, is constructed of an inverter chip provided as a multi-layered circuit. In this case, however, a concrete configuration of such a circuit is no object in particular. The electrode part


105


is opposed to a high pressure portion


107


of the container


12


, while the inverter part


106


is opposed to a low pressure portion


108


of the container


12


. That is, the electrode part


105


and the inverter part


106


are separately placed in compartments (i.e., the high pressure portion


107


and the low pressure portion


108


) which are formed in the container


12


so as to prevent them from extending from the container and being bulky. Simultaneously, the heated inverter part


106


is cooled down by means of a temperature difference between the inverter part


106


and a low-temperature refrigerant located in the low pressure portion


108


. In this case, furthermore, the inverter part


106


is located on a position different from that of the electrode part


105


to be heated by a high-temperature refrigerant in the high pressure portion


107


. Thus, the inverter part


106


is not or hardly influenced by heat, and the inverter control function is stably achieved for a long time as the temperature of a heating portion such as an inverter chip in the inverter control part is guaranteed. Furthermore, since the electrode part


105


opposite to the high pressure portion


107


is cooled, it becomes easily to make a connection with the electric motor


13


being positioned thereon for cooling.




Here, the high pressure portion


107


is located on the discharge passage side, where the high pressure portion


107


communicates with a discharge port


31


of the compression mechanism


10


. On the other hand, the low pressure portion


108


is located on the intake passage side, where the low pressure portion


108


communicates with a suction port


32


. The compression mechanism


10


sucks the refrigerant from the outside through the suction port


16


of the container


12


and then introduce into the compression mechanism


10


through the inside of the container


12


to compress the sucked refrigerant. After that, the refrigerant is discharged once into the container


12


to cool the electric motor


13


, followed by being discharged to the outside of the container


12


through the discharge port


17


. In this embodiment, the low pressure portion


108


and the high pressure portion


107


, which are naturally occurred in the container


12


, can be used as they are in the above movement of the refrigerant. No special passage design is required. The electrode part


105


and the electric motor


13


are opposite to each other with respect to the high pressure portion


107


and they are easily connected to each other through a short internal wiring


102


. In particular, the low pressure portion


108


is just above the suction port


16


and they are connected to each other through a passage


132


.




In this embodiment, the container


12


is constructed of two structural components, a housing main body


111


and an end wall


112


to be placed on an opening of the housing main body


111


. That is, the housing main body


111


is provided as a single structural component on which the high pressure portion


107


and the low pressure portion


108


are separately formed. In addition, the housing main body


111


is integrally constructed of an end wall


12




b


of the container


12


and the body portion


12




a.


As the opposite end of the container


12


is provided as an opening


12




c,


another end wall


112


is placed on the opening


12




c


and is then fixed with a bolt


113


to construct the container


12


. In such a construction of the container


12


, the pressure difference between the high pressure portion


107


and the low pressure portion


108


is stably received by the housing main body


111


made of the single structural component of the container


12


. When the high pressure portion


107


and the low pressure portion


108


are defined in the container


12


and the inverter control device


101


extends over these portions


107


,


108


, the inverter control device


101


is kept stably even though there is no specific countermeasure for a differential pressure to be required for the connection between the high pressure portion


107


and the low pressure portion


108


. Furthermore, the container


12


of the present embodiment is constructed of two structural components, the number of thick flange portions


33


or bolts


113


for connecting these components are reduced, compared with that of the conventional one constructing of three structural components having two joining points. Thus, such a configuration of the present embodiment also allows the reduction in weight of the compressor, so that it is appropriate to be mounted on the vehicle


27


or the like.




Furthermore, the electric portion


105


and the inverter portion


106


of the inverter control device


101


are formed on an identical substrate


114


. Thus, even though the inverter control device


101


has the electrode portion


105


and the inverter portion


106


which are separately formed thereon, the inverter control device


101


is simply installed in the container


12


using the single substrate


114


so as to be arranged opposite to the high pressure portion


107


and the low pressure portion


108


. A portion of the container


12


facing to the high pressure side of the electrode portion


105


and another portion of the container


12


facing to the low pressure side of the inverter portion


106


are separated from each other through seal members


115


. The configuration of the compressor of the present embodiment satisfies the requirements for providing the structure with no excess space because the compressor is constructed such that the electrode portion


105


and the inverter portion


106


are adjacent to each other, while the high pressure portion


107


and the low pressure portion


108


are adjacent to each other and are opposite to the respective portions


105


,


106


. Thereby, the high pressure condition and the low pressure condition for exerting a predetermined function cannot be impaired by leakage of the refrigerant even though the high pressure portion


107


and the low pressure portion


108


come very close to each other. One of leg portions


34


integrally formed on the container


12


is also provided as a partition between the high pressure portion


107


and the low pressure portion


108


. Such a structure prevents the significant increase in weight to be caused by providing an additional wall for the partition.




As shown in

FIG. 1

, the high pressure portion


107


and the low pressure portion


108


are arranged in a line in the axial direction. In addition, these portions


107


,


108


have their openings


121


,


122


, respectively. As shown in the figure, the inverter control device


101


is placed and fixed on a tubular wall


37


which is slightly extended outward from the periphery of the body portion


12




a


in which the above openings


121


,


122


are formed. The inverter control device


101


is thus easily mounted on the container


12


from the outside to allow both electrode and inverter parts


105


,


106


to face to the high and low pressure portions


107


,


108


, respectively. Here, the electrode portion


105


is formed such that it is provided as the body part


15




a


of the terminal


15


. However, it is not limited to such a structure; it is also possible to prepare the body part


15




a


and the electrode portion


105


as separate components and to join them together.




In the embodiment shown in the figure, the inverter control device


101


is fixed on the opening end of the tubular wall


37


. More specifically, the substrate


114


is placed on the tubular wall


37


through a seal member


123


. The substrate


114


and the tubular wall


37


are joined with a bolt


124


. The seal member


123


is provided as a pressure-tight sealing structure for ensuring the pressure condition in the container


12


. Here, the electrode part


105


and the inverter part


106


are provided on the side of the tubular wall


37


opposite to the container


12


. In other words, these parts


105


,


106


are in an atmospheric pressure region. Thus, the predetermined high pressure portion


107


and the low pressure portion


108


are only ensured in the container


12


such that these portions


107


,


108


are only located between the atmospheric pressure region and the container


12


. On the other hand, the opposite side of the container


12


is opened to the air by means of pressure, so that a simplified mounting structure is obtained without any specific sealing structure that takes pressure in account.




Accordingly, the inverter control device


101


is protected from the influence of dust or water by being covered with a cover


126


, as shown in

FIG. 1

, even though the inverter control device


101


is in the atmospheric pressure region and is opened with respect to pressure. In such a sense, it is preferable to adapt a sealing structure for waterproof and dust control by means of a sealing member


127


. In the embodiment shown in the figure, the cover


126


and the substrate


114


are joined with the bolt


124


. In this case, there is no need to provide the sealing member


127


with a pressure-resisting function. In addition, the cover


126


may be made of resin or rubber. Alternatively, the cover may be of having a mounting structure such as a hook or each of various kinds of engaging parts and fitting parts, which is elastically engaged or fitted with a part of the tubular wall


37


or the substrate


114


to provide a temporal fixed condition.




As shown in

FIG. 1

, the electrode part


105


and the inverter part


106


are connected to each other through a bus-bar


131


. The structure for connecting these parts


105


,


106


is simplified, allowing the reduction in cost and the increase in durability to withstand vibrations or the like.




By the way, the container


12


is made of an aluminum material, allowing the reduction in weight. Thus, it is appropriately mounted on the vehicle


27


or the like. In addition, there is an advantage in which various shapes of the container


12


can be easily obtained by means of a mass production using a die forming.




From the above description, the compressor


11


having the built-in electric motor


13


in each of the cases described above is appropriately applied for a mobile structure to be used together with the battery


1


to be moved. In addition, it is also appropriately applied for constructing a mobile structure such as a vehicle


27


on which the compressor


11


having the built-in electric motor


13


is mounted together with the battery


1


.




The vehicle


27


may not be limited to a specific one such as a gasoline-powered vehicle, a hybrid vehicle, or an electric-powered vehicle. The present invention can be applied on various kinds of the mobile structures including special-purpose vehicles and working-purpose vehicles. In addition, the invention can be applied in air-conditioning systems for domestic use or the like for noise reduction.




According to the present invention, there is no need to provide comparatively long external wirings for connecting between the inverter control device and the container, which has been used in the conventional compressor. In addition, a single terminal is shared between the connections for the inverter control device and the electric motor, so that one of the terminals conventionally used is removed. Thus, the wiring distance is extremely shortened and the decrease in weight of the compressor is achieved. Furthermore, the space for mounting the compressor including the inverter control device is reduced, so that the compressor is more easily mounted on the vehicle or the like. Besides, there is also an advantage in driving load.




According to the invention, furthermore, comparing with the conventional one, the electric connection part of the inverter control device and the electric connection part of the electric motor housed in the body portion of the container become more close to each other. Thus, the length of the wiring in the container is reduced, and the weight and cost of the compressor depending on the wiring is reduced. Furthermore, the compressor of the invention is easily installed in a restricted space of the vehicle or the like since there is no need to increase the axial dimension of the container including the inverter control device.




Although the present invention has been fully described in connection with the preferred embodiment thereof, it is to be noted that various changes and modifications apparent to those skilled in the art are to be understood as included within the scope of the present invention as defined by the appended claims unless they depart therefrom.



Claims
  • 1. A compressor with a built-in electric motor, comprising:a compression mechanism; a built-in electric motor that drives the compression mechanism; a container that houses the compression mechanism and the built-in electric motor; and an inverter control device that performs an inverter control on the built-in electric motor, the device being integrally provided on a part of the container and connected to the electric motor; wherein the inverter control device comprises an electrode part and an inverter part which are electrically connected to each other, the electrode part is opposite to a high pressure portion of the container, and the inverter part is opposite to a low pressure portion of the container.
  • 2. The compressor with a built-in electric motor according to claim 1, whereinthe high pressure portion of the container is provided on a discharge passage side from the compression mechanism, and the low pressure portion of the container is provided on a suction passage side.
  • 3. The compressor with a built-in electric motor according to claim 1, whereinthe high pressure portion and the low pressure portion of the container are formed on their respective portions made of the same member.
  • 4. The compressor with a built-in electric motor according to claim 1, whereinthe electrode part and the inverter part are provided on an identical substrate.
  • 5. The compressor with a built-in electric motor according to claim 1, whereina portion of the electrode part which faces the high pressure portion of the container, and a portion of the inverter part which faces the low pressure portion of the container, are partitioned from each other through a sealing member.
  • 6. The compressor with a built-in electric motor according to claim 1, whereinthe inverter control device is placed from the outside on a container wall in which the high pressure portion and the low pressure portion are opened side by side and is then fixed thereon.
  • 7. The compressor with a built-in electric motor according to claim 1, whereinthe partitioning is performed by sharing a leg portion integrally formed on the container.
  • 8. The compressor with a built-in electric motor according to claim 1, whereinthe electrode part and the inverter part are in an atmospheric pressure region.
  • 9. The compressor with a built-in electric motor according to claim 8, whereinthe electrode part and the inverter part are connected using a bus-bar.
  • 10. A compressor with a built-in electric motor, comprising:a compression mechanism; a built-in electric motor that drives the compression mechanism; a container that houses the compression mechanism and the built-in electric motor; and an inverter control device that performs an inverter control on the built-in electric motor, the device being integrally provided on a part of the container and connected to the electric motor; wherein the inverter control device comprises an electrode part and an inverter part which are electrically connected to each other, and the electrode part and the inverter part are placed in first and second separate compartments, respectively, the first compartment having a pressure different from the second compartment.
  • 11. The compressor with a built-in electric motor according to claim 10, whereinthe inverter control device is in an atmospheric pressure region and is covered with a cover.
  • 12. The compressor with a built-in electric motor according to claim 10, whereinthe container is made of an aluminum-based material.
  • 13. The compressor with a built-in electric motor according to claim 10, wherein the compressor is used with a battery that moves by a device to move said battery.
  • 14. A mobile structure mounted with the compressor with a built-in electric motor according to claim 10, along with a battery.
  • 15. A compressor with a built-in electric motor, comprising:a compression mechanism; a built-in electric motor that drives the compression mechanism; a container that houses the compression mechanism and the built-in electric motor; and an inverter control device that performs an inverter control on the built-in electric motor, the device being integrally provided on a body portion of the container in which the compression mechanism and the built-in electric motor are housed such that they are axially arranged in a line and connected to the electric motor; wherein the inverter control device comprises an electrode part and an inverter part which are electrically connected to each other, and the electrode part and the inverter part are placed in first and second separate compartments, respectively, the first compartment having a pressure different from the second compartment.
  • 16. The compressor with a built-in electric motor according to claim 15, whereinthe inverter control device is in an atmospheric pressure region and is covered with a cover.
  • 17. The compressor with a built-in electric motor according to claim 15, whereinthe container is made of an aluminum-based material.
  • 18. The compressor with a built-in electric motor according to claim 15, wherein the compressor is used with a battery that moves by a device to move said battery.
  • 19. A mobile structure mounted with the compressor with a built-in electric motor according to claim 15, along with a battery.
  • 20. A compressor with a built-in electric motor comprising:a compression mechanism; a built-in electric motor that drives the compression mechanism; a container that houses the compression mechanism and the built-in electric motor; and an inverter control device that performs an inverter control on the built-in electric motor, the device being integrally provided on a body portion of the container in which the compression mechanism and the built-in electric motor are housed such that they are axially arranged in a line and connected to the electric motor; wherein the inverter control device comprises an electrode part and an inverter part which are electrically connected to each other, the electrode part is opposite to a high pressure portion of the container, and the inverter part is opposite to a low pressure portion of the container.
Priority Claims (1)
Number Date Country Kind
2001-174430 Jun 2001 JP
US Referenced Citations (9)
Number Name Date Kind
3634873 Nishimura Jan 1972 A
4293281 Lamoreaux Oct 1981 A
4834624 Jensen et al. May 1989 A
4963778 Jensen et al. Oct 1990 A
5904471 Woollenweber et al. May 1999 A
5939807 Patyk et al. Aug 1999 A
6178760 Tanaka et al. Jan 2001 B1
6524082 Morita et al. Feb 2003 B2
6544009 Makino et al. Apr 2003 B2