JP2010209788A - Inverter integrated type electric compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inverter integrated type electric compressor reducing electromagnetic noise propagating through a communication cable, and preventing an excessive load from acting on the communication cable and an inverter device by eliminating generation of moment due to a noise elimination member. <P>SOLUTION: In this inverter integrated type electric compressor 1 in which the communication cable 11 passes through from an outside and is connected to a control communication circuit of an inverter device 7 disposed in an inverter housing part 4 at an outer circumference of a housing 2 through a water proof seal member 12 disposed on a wall surface of the inverter housing part 4, a noise removing member 14 installed around the communication cable 11 and removing electromagnetic noise propagating through the communication cable 11 is disposed on the water proof seal member 12 as one unit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an inverter-integrated electric compressor that is suitable for use in a compressor for a vehicle air conditioner that is mounted on a vehicle and used.

  As a compressor for an air conditioner mounted on a vehicle such as an electric vehicle or a hybrid vehicle, an electric compressor in which an inverter device is integrated is used. This inverter-integrated electric compressor is generally provided with an inverter housing (inverter box) on the outer periphery of a housing in which an electric motor and a compression mechanism are built, and DC power supplied from a power supply unit is three-phase AC. An inverter device that converts power into electric power and applies it to an electric motor through a glass sealed terminal is incorporated.

  The inverter device includes a power system board on which a switching circuit composed of semiconductor switching elements such as IGBTs is mounted, and a control board on which a control communication circuit composed of elements operating at a low voltage such as a CPU is mounted. The control signal is input / output to / from the control communication circuit on the control board via a communication cable from a higher-level control device, that is, the vehicle side ECU (Electric Control Unit), and the electric motor is controlled by the inverter device. It is driven to rotate at a frequency.

  In the above inverter-integrated electric compressor, the communication cable connected to the inverter device is a radiation antenna to the outside of electromagnetic noise generated due to the switching operation of the inverter device, or other electronic devices mounted on the vehicle. It functions as a receiving antenna for electromagnetic noise generated in It is widely known that a communication cable connected to an electronic device functions as an antenna against electromagnetic noise, and the electromagnetic noise that is radiated or penetrated in this way causes malfunction or detection of the electronic device. Sometimes.

  Therefore, in order to prevent or reduce electromagnetic noise from radiating or entering through the communication cable, a magnetic core such as a ferrite core is provided around the communication cable and radiated or intruded through the communication cable. Various techniques for removing electromagnetic noise have been proposed (see, for example, Patent Documents 1 and 2). Patent Document 1 discloses a ferrite core mounting structure on a cable penetrating a casing of an electronic device, and a nut and a body case each containing a ferrite core are clamped and fixed from inside and outside so as to sandwich the casing. Patent Document 2 discloses that a ferrite core is loaded directly on the outer periphery of an electric wire connected to a printed circuit board outside the housing.

Japanese Patent Laid-Open No. 11-260645 JP 2004-311531 A

  However, the one disclosed in Patent Documents 1 and 2 is configured such that a ferrite core for removing electromagnetic noise is mounted around the communication cable at a position away from the wall surface of the housing. For this reason, when intense vibration is applied to the electronic device, a large moment is generated by the ferrite core, and as a result, an extra load is applied to the communication cable and the cable penetration part of the housing, and further to the printed circuit board side. There was a problem that additional measures against vibration were required. In particular, since an inverter-integrated electric compressor mounted on a vehicle is directly subjected to vehicle vibration, a vibration-proof structure is indispensable when mounting a ferrite core or the like for removing electromagnetic noise.

  The present invention has been made in view of such circumstances, and reduces electromagnetic noise propagating through the communication cable and eliminates the generation of moment by the noise removing member, which is unnecessary for the communication cable and the inverter device. An object of the present invention is to provide an inverter-integrated electric compressor that can be prevented from being loaded.

In order to solve the above-described problems, the inverter-integrated electric compressor of the present invention employs the following means.
That is, the inverter-integrated electric compressor according to the present invention is provided with a waterproof seal provided on the wall surface of the inverter housing portion with respect to the control communication circuit of the inverter device disposed in the inverter housing portion on the outer periphery of the housing. In an inverter-integrated electric compressor in which a communication cable is connected through from the outside through a member, the waterproof seal member is interposed around the communication cable and propagated through the communication cable. A noise removing member for removing electromagnetic noise is integrally provided.

  According to the present invention, the electromagnetic wave that is interposed around the communication cable and propagates through the communication cable to the waterproof seal member that is installed in the portion where the communication cable of the inverter housing portion is penetrated. Since the noise removing member that removes noise is integrally provided, electromagnetic noise that is radiated from the inverter device to the outside via the communication cable or enters the inverter device from the outside is integrated with the waterproof seal member. It can be absorbed and reduced by the noise removing member provided. Therefore, the electromagnetic environment compatibility (EMC) of the inverter-integrated electric compressor can be improved. In addition, since the noise removing member is installed on the wall surface of the inverter housing portion via the waterproof seal member, no moment is generated in the noise removing member due to vehicle running vibration, etc. Therefore, the communication cable It is possible to prevent an unnecessary load from being applied to the inverter device.

  Furthermore, the inverter-integrated electric compressor of the present invention is the above-described inverter-integrated electric compressor, wherein the waterproof seal member is a rubber or resin member, and the noise removing member is a magnetic material such as ferrite or neodymium. It is characterized by being a body core.

  According to the present invention, since the waterproof seal member is a rubber or resin member, and the noise removing member is a magnetic core such as ferrite or neodymium, the rubber or resin member through which the communication cable passes is ferrite. Electromagnetic noise propagated through the communication cable can be reduced by integrally providing a magnetic core such as neodymium or the like and interposing a noise removing member around the communication cable. Therefore, it is not necessary to particularly secure a space for installing the noise removing member, and the noise removing member can be easily installed without applying an extra load to the communication cable and the inverter device.

  Furthermore, the inverter-integrated electric compressor according to the present invention is the above-described inverter-integrated electric compressor, wherein the waterproof seal member includes a core portion through which the communication cable passes, and an outer periphery of the core portion. The noise removing member interposed in the housing and the outer skin portion that encloses the noise removing member and is installed in the inverter accommodating portion.

  According to the present invention, the waterproof seal member includes a core portion through which the communication cable passes, a noise removal member interposed on the outer periphery of the core portion, and the noise removal member. Since it is composed of the outer skin part to be installed, a noise removing member is interposed around the communication cable without damaging the waterproof seal of the part through which the communication cable penetrates the inverter housing part. can do. Therefore, the noise removing member can be easily integrated with the waterproof sealing member, and the EMC performance and the vibration resistance can be improved.

  Furthermore, in the inverter-integrated electric compressor according to the present invention, in any one of the inverter-integrated electric compressors described above, the noise removing member is divided into two parts, and a part thereof seals the inverter accommodating portion. It is provided in.

  According to the present invention, the noise removing member is divided into two parts, and a part of the noise removing member is provided on the cover member side that seals the inverter accommodating part. The noise removing member can be easily assembled, and the noise removing member is integrated by assembling the cover member to the inverter accommodating portion, thereby forming a closed magnetic circuit. Therefore, the noise reduction effect can be ensured regardless of the division of the noise removing member, and the assembly of the noise removing member can be facilitated.

  Furthermore, the inverter-integrated electric compressor according to the present invention is provided with a waterproof seal provided on the wall surface of the inverter housing portion with respect to the control communication circuit of the inverter device disposed in the inverter housing portion on the outer periphery of the housing. In an inverter-integrated electric compressor in which a communication cable is through-connected from the outside through a member, the signal is propagated through the communication cable around a connector provided at an outer end of the communication cable. A noise removing member for removing electromagnetic noise is integrally provided.

  According to the present invention, a noise removing member for removing electromagnetic noise propagated through the communication cable is integrally provided around the connector provided at the outer end of the communication cable connected to the inverter device. Therefore, electromagnetic noise that is radiated from the inverter device to the outside through the communication cable or that enters the inverter device from the outside is absorbed and reduced by the noise removing member that is integrated with the connector. Can do. Therefore, the electromagnetic environment compatibility (EMC) of the inverter-integrated electric compressor can be improved. In addition, since the noise removing member is integrated with the connector and fixed to either the housing of the electric compressor or the mounting portion on the vehicle body side, no moment is generated in the noise removing member due to running vibration of the vehicle. Thus, it is possible to prevent an unnecessary load from being applied to the communication cable and the inverter device.

  Furthermore, the inverter-integrated electric compressor according to the present invention is the above-described inverter-integrated electric compressor, wherein the connector includes a resin case that is divided into two so as to be fitted to each other, and a ring shape is formed between the resin cases. The noise removing member is interposed.

  According to the present invention, the connector is provided with the resin case that is divided into two so as to be fitted together, and the ring-shaped noise removing member is interposed between the resin cases. By interposing between the divided resin cases, the noise removing member can be easily assembled integrally around the connector. Therefore, it is not necessary to particularly secure a space for installing the noise removing member, and the noise removing member can be easily installed without applying an extra load to the communication cable and the inverter device.

  Further, the inverter-integrated electric compressor according to the present invention is the above-described inverter-integrated electric compressor, wherein the noise removing member is connected to one end side and the other end side is connected to be freely opened and closed. And is detachably provided on the outer periphery of the connector via the ring-shaped case.

  According to the present invention, the noise removing member is divided into two and accommodated in a ring-shaped case in which one end side is connected and the other end side is openably coupled, and the outer periphery of the connector is interposed via the ring-shaped case. Since the other end of the ring-shaped case that can be opened and closed is opened and the ring-shaped case is attached to the outer periphery of the connector, the noise removing member can be easily integrated with the outer periphery of the connector. Can be assembled. Therefore, it is not necessary to particularly secure a space for installing the noise removing member, and the noise removing member can be easily installed without applying an extra load to the communication cable and the inverter device. In addition, the noise removing member can be easily installed later even if necessary.

  Furthermore, the inverter-integrated electric compressor according to the present invention is characterized in that in the above-mentioned inverter-integrated electric compressor, the noise removing member is integrally insert-molded with a resin case of the connector.

  According to the present invention, since the noise removing member is insert-molded integrally with the resin case of the connector, the work of assembling the noise removing member to the outer periphery of the connector can be made unnecessary. Therefore, it is possible to facilitate the incorporation of the noise removing member, and it is not necessary to secure a space for installing the noise removing member, and without applying an extra load to the communication cable and the inverter device. The noise removing member can be easily installed.

  Furthermore, the inverter-integrated electric compressor according to the present invention is provided with a waterproof seal provided on the wall surface of the inverter housing portion with respect to the control communication circuit of the inverter device disposed in the inverter housing portion on the outer periphery of the housing. In an inverter-integrated electric compressor in which a communication cable is penetrated from the outside through a member, the waterproof seal member is interposed around the communication cable and propagated through the communication cable. The first noise removing member for removing electromagnetic noise is integrally provided, and electromagnetic noise propagated through the communication cable is around the connector provided at the outer end of the communication cable. The second noise removing member to be removed is integrally provided.

  According to the present invention, the electromagnetic wave that is interposed around the communication cable and propagates through the communication cable to the waterproof seal member that is installed in the portion where the communication cable of the inverter housing portion is penetrated. A first noise removing member for removing noise is integrally provided, and is propagated around the connector provided at the outer end of the communication cable connected to the inverter device via the communication cable. Since the second noise removing member for removing the electromagnetic noise is integrally provided, it is radiated from the inverter device to the outside through the communication cable connected to the inverter device or tries to enter the inverter device from the outside. Electromagnetic noise can be absorbed and reduced by each of the first noise removing member and the second noise removing member. Accordingly, it is possible to further improve the electromagnetic compatibility (EMC) of the inverter-integrated electric compressor. In addition, since the first and second noise removing members are fixedly installed in either the housing of the electric compressor or the mounting portion on the vehicle body side, no moment is generated in the noise removing member due to vehicle running vibration, etc. Therefore, it is possible to prevent an unnecessary load from being applied to the communication cable and the inverter device.

  Furthermore, in the inverter-integrated electric compressor according to the present invention, in the inverter-integrated electric compressor, the first noise removing member and the second noise removing member correspond to electromagnetic noises having different frequencies. It is characterized by being.

  According to the present invention, since the first noise removing member and the second noise removing member correspond to electromagnetic noise of different frequencies, for example, electromagnetic noise generated on the inverter device side and radiated to the outside, for example. Even when the frequency of electromagnetic noise entering the inverter device side from the outside is different, each noise can be absorbed and reduced by the first noise removing member and the second noise removing member. Therefore, the EMC performance of the inverter-integrated electric compressor can be further improved.

  According to the present invention, the noise removing member is provided integrally with the waterproof seal member and / or the connector for electromagnetic noise that is radiated to the outside from the inverter device via the communication cable or is about to enter the inverter device from the outside. Therefore, the electromagnetic environment compatibility of the inverter-integrated electric compressor can be improved, and malfunction of the inverter device due to electromagnetic noise, erroneous detection, and the like can be prevented. In addition, since the noise removing member is installed on the wall surface of the inverter housing portion and / or the mounting portion on the vehicle body side through a waterproof seal member, a moment is not generated in the noise removing member due to vehicle vibration or the like, Therefore, it is possible to prevent an unnecessary load from being applied to the communication cable and the inverter device.

It is a disassembled perspective view of the principal part of the inverter integrated electric compressor which concerns on 1st Embodiment of this invention. It is a disassembled perspective view of the waterproof seal member and noise removal member assembled | attached to the inverter integrated electric compressor shown in FIG. It is a disassembled perspective view of the waterproof sealing member and noise removal member which are assembled | attached to the inverter integrated electric compressor which concerns on 2nd Embodiment of this invention. It is a perspective view of the inverter module integrated in the inverter integrated electric compressor which concerns on 3rd Embodiment of this invention. It is a disassembled perspective view of the connector and noise removal member which are provided in the communication cable of the inverter module shown in FIG. It is a disassembled perspective view of the connector and noise removal member which are provided in the communication cable of the inverter integrated electric compressor which concerns on 4th Embodiment of this invention. It is a disassembled perspective view of the connector and noise removal member which are provided in the communication cable of the inverter integrated electric compressor which concerns on 5th Embodiment of this invention.

Embodiments according to the present invention will be described below with reference to the drawings.
[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
The inverter-integrated electric compressor 1 includes an aluminum die-cast housing 2 in which a compression mechanism (not shown) and an electric motor are incorporated. The housing 2 is configured such that a motor housing 3 incorporating an electric motor and a compressor housing (not shown) incorporating a compression mechanism are integrally coupled by bolts or the like.

  Inverter accommodating portions 4 and 5 are integrally formed on the outer periphery of the motor housing 3, and an inverter device 7 described later is accommodated and installed in the inverter accommodating portions 4 and 5. After the inverter module 8 constituting the inverter device 7 is accommodated and installed in the inverter accommodating portion 4, the upper surface thereof is sealed with the cover member 6, and the inverter accommodating portion 5 includes the inverter device. After a high voltage system component (not shown) such as a head capacitor (smoothing capacitor) and an inductor constituting 7 is accommodated and installed, its side surface is sealed by a cover member (not shown).

  The inverter device 7 may be a known one, and is connected to a PN power supply line of DC power supplied from a power supply unit, and is a high voltage system component such as a head capacitor and an inductor that reduces current ripple and common mode noise. And a switching circuit composed of a semiconductor switching element such as an IGBT, and a power system board (illustrated) that converts DC power supplied via the PN power line into three-phase AC power and applies it to the electric motor. And a control communication circuit composed of elements operating at a low voltage such as a CPU, and a control board 9 for controlling AC power applied to the electric motor.

  The power system board and the control board 9 are integrated into a module by disposing the power system board in the lower part thereof via the resin case 10 and arranging the control board 9 in the upper part. The inverter module 8 is configured to be fixedly installed on the bottom surface in the inverter accommodating portion 4 via a bolt or the like.

  Connected to the control board 9 of the inverter device 7 is a communication cable 11 for inputting / outputting a control signal from a vehicle-side ECU (Electric Control Unit) which is a host control device. This communication cable 11 is penetrated from the outside into the inverter accommodating part 4 through the waterproof seal member 12 installed in the notch part 4A of the inverter accommodating part 4, and is a connector 13 provided on the inner end side. Is connected to the control board 9. The waterproof seal member 12 is made of a grommet material (rubber material or resin material).

  As shown in FIG. 2, the waterproof seal member (grommet) 12 includes a noise removing member 14 composed of a magnetic core such as ferrite or neodymium, and is interposed around the communication cable 11. It is like that. Specifically, the waterproof seal member (grommet) 12 has a core portion 12A made of resin, rubber or the like through which the communication cable 11 passes one by one, and has a ring shape on the outer periphery of the core portion 12A. And a pair of outer skin portions 12B and 12C made of a grommet material such as rubber or resin so as to enclose the noise removing member 14 are provided. It is set as the structure. The outer skin portions 12B and 12C are provided with through holes 12D of the communication cable 11, respectively.

  As described above, the noise removing member 14 is built in the waterproof seal member 12 so that the noise removing member 14 made of a magnetic core such as ferrite or neodymium is placed on the extended surface of the wall surface of the inverter accommodating portion 4. It can be set as the structure installed in the position. In the above description, a plurality of communication cables 11 are passed through the core portion 12A one by one. However, it goes without saying that a plurality of communication cables 11 may be passed through in a bundle.

With the configuration described above, according to the present embodiment, the following operational effects can be obtained.
The inverter-integrated electric compressor 1 converts DC power supplied from an on-vehicle power supply unit into three-phase AC power by an inverter device 7 and applies it to the electric motor to rotate the electric motor, thereby compressing the compression mechanism. It is driven by driving. Based on a control signal input to the control board 9 from the vehicle-side ECU of the host controller via the communication cable 11, the control board 9 controls the switching circuit of the power system board. It is variably controlled by controlling the frequency of the AC power to the command frequency.

  In the inverter device 7 controlled as described above, electromagnetic noise is generated by the switching operation of the switching circuit of the power system board. On the other hand, electromagnetic noise is similarly generated in other electronic devices mounted on the vehicle. These electromagnetic noises are radiated to the outside from the inverter device 7 side using the communication cable 11 connected to the inverter device 7 as an antenna, or try to enter the inverter device 7 side from the outside.

  However, in the present embodiment, the waterproof seal member 12 installed in the portion of the inverter housing 4 where the communication cable 11 is penetrated is interposed around the communication cable 11 and the communication cable. A noise removing member 14 such as a ferrite core or a neodymium core that removes electromagnetic noise propagated through 11 is integrally provided. For this reason, electromagnetic noise that is radiated to the outside from the inverter device 7 via the communication cable 11 or that enters the inverter device 7 from the outside is absorbed by the noise removing member 14 built in the waterproof seal member 12. , Can be reduced.

Therefore, the electromagnetic environment compatibility (EMC) of the in-vehicle inverter-integrated electric compressor 1 used in a severe electromagnetic noise environment can be improved, and the malfunction and detection of the inverter device 7 due to the electromagnetic noise can be improved. Etc. can be prevented.
In addition, the noise removing member 14 made of a ferrite core, a neodymium core, or the like is installed on the extended surface of the wall surface of the inverter accommodating portion 4 via a waterproof seal member (grommet) 12. For this reason, a moment does not occur in the noise removing member 14 due to vehicle running vibration or the like, and accordingly, it is possible to prevent an unnecessary load from being applied to the communication cable 11 and the inverter device 7.

  Furthermore, since the waterproof seal member 12 is a grommet material such as rubber or resin, and the noise removing member 14 is a magnetic core such as ferrite or neodymium, the grommet 12 through which the communication cable 11 penetrates has ferrite or neodymium. The electromagnetic noise propagated through the communication cable 11 can be reduced by integrally providing a magnetic core such as the like and interposing the noise removing member 14 around the communication cable 11. For this reason, it is not necessary to secure a space for installing the noise removing member 14, and the noise removing member 14 can be easily installed without applying extra load to the communication cable 11 and the inverter device 7. be able to.

  The waterproof seal member 12 includes a core portion 12A through which the communication cable 11 is penetrated, a noise removing member 14 interposed on the outer periphery of the core portion 12A, and the noise removing member 14, and accommodates the inverter. It is comprised by the outer skin parts 12B and 12C installed in the notch part 4A of the part 4. FIG. For this reason, the noise removal member 14 can be interposed around the communication cable 11 without damaging the waterproof sealing property of the portion through which the communication cable 11 penetrates the inverter housing portion 4. Therefore, the noise removing member 14 can be easily integrated with the waterproof seal member 12, and the EMC performance and the vibration resistance can be improved.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
This embodiment is different from the first embodiment described above in that the noise removing member 24 is divided into two parts. Since other points are the same as those in the first embodiment, description thereof will be omitted.
In the present embodiment, as shown in FIG. 3, the outer skin portion 22 </ b> B that forms the U-shape of the waterproof seal member 22 is formed on the outer periphery of the core portion 22 </ b> A of the waterproof seal member 22 through which the communication cable 11 is penetrated. An enclosed U-shaped noise removing member 24 </ b> A is interposed, and the waterproof sealing member 22 is installed in the notch portion 4 </ b> A of the inverter accommodating portion 4.

  On the other hand, an I-shaped noise removing member 24B having a length capable of coupling the open ends of the U-shaped noise removing member 24A is fixedly installed on the cover member 6 side that seals the upper surface of the inverter accommodating portion 4. ing. By fixing the cover member 6 to the inverter accommodating portion 4, the noise removing members 24A and 24B made of U-shaped and I-shaped magnetic materials which are divided into two are coupled to each other to form a closed magnetic circuit. Thus, a noise removing member 24 for removing electromagnetic noise is configured.

  As described above, the noise removing member 24 is divided into the U-shaped noise removing member 24 </ b> A and the I-shaped noise removing member 24 </ b> B, and one of the I-shaped noise removing members 24 </ b> B is sealed in the inverter housing 4. The configuration provided on the cover member 6 side makes it easier to incorporate the noise removing member 24 into the waterproof seal member 22 and the inverter accommodating portion 4 than when a ring-shaped noise removing member is incorporated. In addition, the noise removing members 24A and 24B that have been divided into two parts are integrated by assembling the cover member 6 to the inverter accommodating portion 4, and a closed magnetic circuit is formed. For this reason, the noise reduction effect can be ensured regardless of the division of the noise removing member 24, and the assembly of the noise removing member 24 can be facilitated.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIGS.
This embodiment differs from the first embodiment described above in that the noise removing member 34 is provided integrally with the connector 35 provided at the outer end of the communication cable 11. Since other points are the same as those in the first embodiment, description thereof will be omitted.
In the present embodiment, the noise removing member 34 is integrally provided on the connector 35 provided on the outer end of the communication cable 11.

  That is, as shown in FIG. 4, a connector 35 for connecting to the cable of the vehicle side ECU is provided on the outer end side of the communication cable 11 connected to the control board 9 of the inverter device 7. Yes. Since this connector 35 is fixedly installed on either the outer surface of the inverter accommodating portion 4 or the mounting portion on the vehicle body side, the noise removing member 34 is integrally provided on the connector 35, whereby the noise removing member is provided. It is not necessary to particularly secure a space for installing 34, and the noise removing member 34 can be easily installed without applying an extra load to the communication cable 11 and the inverter device 7.

  As shown in FIG. 5, the noise removing member 34 has a ring-shaped magnetic core such as ferrite or neodymium. The ring-shaped noise removing members 34 can be fitted to each other in the longitudinal direction. By being interposed between the resin cases 35 </ b> A and 35 </ b> B of the connector 35 divided into two, the connector 35 is provided integrally with the connector 35. The resin cases 35A and 35B are integrally coupled via a claw 35C and the like.

  As described above, the noise removing member 34 removes electromagnetic noise propagated through the communication cable 11 around the connector 35 provided at the outer end of the communication cable 11 connected to the inverter device 7. Also, the connector 35 is integrally provided with electromagnetic noise that is radiated from the inverter device 7 through the communication cable 11 or that enters the inverter device 7 from the outside. The noise removing member 34 can absorb and reduce the noise.

  Therefore, according to this embodiment as well, the electromagnetic environment compatibility (EMC performance) of the inverter-integrated electric compressor 1 can be improved, and the malfunction and detection of the inverter device 7 due to electromagnetic noise can be prevented. Further, since the noise removing member 34 is integrated with the connector 35 and is fixedly installed on either the housing 3 (inverter accommodating portion 4) side of the electric compressor or the mounting portion on the vehicle body side, the noise removing member 34 is caused by vehicle vibration or the like. Thus, no moment is generated in 34, and therefore it is possible to prevent an unnecessary load from being applied to the communication cable 11 and the inverter device 7.

  Further, the connector 35 is configured to include resin cases 35A and 35B that are divided into two so as to be fitted to each other, and a ring-shaped noise removing member 34 is interposed between the resin cases 35A and 35B. Therefore, the noise removing member 34 can be easily assembled integrally around the connector 35 by interposing the ring-shaped noise removing member 34 between the two resin cases 35A and 35B. Accordingly, it is not necessary to particularly secure a space for installing the noise removing member 34, and the noise removing member 34 can be easily installed without applying an extra load to the communication cable 11 and the inverter device 7. Can do.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described with reference to FIG.
This embodiment differs from the above-described third embodiment in the configuration of the noise removing member 44. Since other points are the same as those in the first and third embodiments, description thereof will be omitted.
As shown in FIG. 6, the noise removing member 44 is vertically divided into two. The noise-removing members 44A and 44B divided into two parts are accommodated in a ring-shaped case 45 having one end connected and the other end openably coupled, and the connector 35 is connected via the ring-shaped case 45. It is designed to be detachably installed on the outer periphery. The other end of the ring-like case 45 that can be freely opened and closed is integrally coupled via a claw 45A or the like.

  According to the above configuration, the other end of the ring-shaped case 45 that can be opened and closed is opened and the ring-shaped case 45 is attached to the outer periphery of the connector 35, whereby the noise removing member 44 can be easily attached to the outer periphery of the connector 35. Can be assembled together. Accordingly, it is not necessary to particularly secure a space for installing the noise removing member 44, and the noise removing member 44 can be easily installed without applying an extra load to the communication cable 11 and the inverter device 7. Can do. Further, the noise removing member 44 can be easily additionally installed later as required.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described with reference to FIG.
This embodiment differs from the above-described third embodiment in the configuration of the noise removing member 54 and the connector 35. Since other points are the same as those in the first and third embodiments, description thereof will be omitted.
In the present embodiment, as shown in FIG. 7, the ring-shaped noise removing member 54 is integrally formed with the resin case 35 </ b> C of the connector 35.

  As described above, by integrally molding the ring-shaped noise removing member 54 into the resin case 35 </ b> C of the connector 35, the assembly work of the noise removing member 54 to the outer periphery of the connector 35 can be made unnecessary. Therefore, it is possible to facilitate the incorporation of the noise removing member 54, and it is not necessary to secure a space for installing the noise removing member 54, and an extra load is imposed on the communication cable 11 and the inverter device 7. The noise removing member 54 can be easily installed without applying any.

[Sixth Embodiment]
Next, a sixth embodiment of the present invention will be described.
In the first and second embodiments, an example in which the noise removing members 14 and 24 are provided integrally with the waterproof seal member 12 is shown. In the third to fifth embodiments, the outer end of the communication cable 11 is provided. Although an example in which the noise removing members 34, 44, 54 are integrally provided on the connector 35 provided is shown, the first noise removing members 14, 24 and the second noise are respectively provided on the waterproof seal member 12 and the connector 35. It is good also as a structure which provided the removal members 34,44,54.

  By adopting such a configuration, the electromagnetic noise that is radiated to the outside from the inverter device 7 via the communication cable 11 connected to the inverter device 7 or tries to enter the inverter device 7 from the outside is the first noise. It can be absorbed and reduced by the removal members 14 and 24 and the second noise removal members 34, 44 and 54, respectively. Therefore, the electromagnetic environment compatibility of the inverter-integrated electric compressor can be further improved. Further, since the first and second noise removing members 14, 24, 34, 44, 54 are fixedly installed in either the housing 3 (inverter accommodating portion 4) of the electric compressor or the mounting portion on the vehicle body side, The moment is not generated in the noise removing members 14, 24, 34, 44, and 54 due to traveling vibration and the like, and accordingly, it is possible to prevent an unnecessary load from being applied to the communication cable 11 and the inverter device 7.

  The first noise removing members 14, 24 and the second noise removing members 34, 44, 54 can correspond to electromagnetic noise having different frequencies. In this case, for example, even when the frequency of electromagnetic noise generated on the inverter device 7 side and radiated to the outside is different from the frequency of electromagnetic noise entering the inverter device 7 side from the outside, each noise is first It can be absorbed and reduced by the noise removing members 14, 24 and the second noise removing members 34, 44, 54. Therefore, the EMC performance of the inverter-integrated electric compressor 1 can be further improved.

  In addition, this invention is not limited to the invention concerning the said embodiment, In the range which does not deviate from the summary, it can change suitably. For example, the inverter accommodating portion 4 may be formed separately from the housing 3 and integrally assembled with the housing 3. Further, the inverter device 7 and the inverter module 8 are not limited to those of the above-described embodiment, and various modifications can be made. Furthermore, the number of communication cables is not limited to three, but can be variously changed depending on the convenience of the vehicle.

DESCRIPTION OF SYMBOLS 1 Inverter integrated electric compressor 2 Housing 4 Inverter accommodating part 6 Cover member 7 Inverter apparatus 11 Communication cable 12, 22 Waterproof seal member 12A, 22A Core part 12B, 12C, 22B Outer part 14, 24, 24A, 24B Noise Removal member 34, 44, 44A, 44B, 54 Noise removal member 35 Connector 35A, 35B, 35C Resin case 45 Ring-shaped case

Claims (10)

A communication cable is penetrated from the outside to the control communication circuit of the inverter device disposed in the inverter housing portion on the outer periphery of the housing via a waterproof seal member provided on the wall surface of the inverter housing portion. In the inverter-integrated electric compressor
An inverter according to claim 1, wherein the waterproof seal member is integrally provided with a noise removal member interposed around the communication cable and for removing electromagnetic noise propagated through the communication cable. Body type electric compressor.   The inverter-integrated electric compressor according to claim 1, wherein the waterproof seal member is a rubber or resin member, and the noise removing member is a magnetic core such as ferrite or neodymium. .   The waterproof seal member includes a core portion through which the communication cable passes, the noise removal member interposed on the outer periphery of the core portion, and the noise removal member, and is installed in the inverter accommodating portion. The inverter-integrated electric compressor according to claim 1, wherein the inverter-integrated electric compressor is configured with an outer skin portion.   4. The inverter-integrated electric compression according to claim 1, wherein the noise removing member is divided into two parts, and a part thereof is provided on a cover member side that seals the inverter accommodating portion. Machine. A communication cable is penetrated from the outside to the control communication circuit of the inverter device disposed in the inverter housing portion on the outer periphery of the housing via a waterproof seal member provided on the wall surface of the inverter housing portion. In the inverter-integrated electric compressor
An inverter integrated type, wherein a noise removing member for removing electromagnetic noise propagated through the communication cable is integrally provided around a connector provided at an outer end of the communication cable. Electric compressor.   The inverter according to claim 5, wherein the connector includes a resin case that is divided into two parts so as to be fitted together, and the ring-shaped noise removing member is interposed between the resin cases. Body type electric compressor.   The noise removing member is divided into two parts and accommodated in a ring-shaped case having one end connected and the other end openably coupled, and is detachably attached to the outer periphery of the connector via the ring-shaped case. The inverter-integrated electric compressor according to claim 5, wherein the inverter-integrated electric compressor is provided.   The inverter-integrated electric compressor according to claim 5, wherein the noise removing member is insert-molded integrally with a resin case of the connector. A communication cable is penetrated from the outside to the control communication circuit of the inverter device disposed in the inverter housing portion on the outer periphery of the housing via a waterproof seal member provided on the wall surface of the inverter housing portion. In the inverter-integrated electric compressor
The waterproof seal member is integrally provided with a first noise removing member that is interposed around the communication cable and removes electromagnetic noise propagated through the communication cable. An inverter-integrated electric motor characterized in that a second noise removing member for removing electromagnetic noise propagated through the communication cable is integrally provided around a connector provided at an outer end of the cable. Compressor. 10. The inverter-integrated electric compressor according to claim 9, wherein the first noise removing member and the second noise removing member correspond to electromagnetic noise having different frequencies, respectively.

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