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公开(公告)号：US20200099179A1
公开(公告)日：2020-03-26
申请号：US16469794
申请日：2017-12-08
Applicant: Edwards Japan Limited
Inventor： Yanbin Sun , Kengo Saegusa , Yoshiyuki Sakaguchi , Hideki Omori
Abstract: A vacuum pump has a hermetic connector disposed on a base of a body of the vacuum pump. The hermetic connector has a plurality of pins connected to a plurality of electrical cables leading to the inside of the pump body. The connector is longer in a lateral direction than in an axial direction so that the connector is horizontally long in a circumferential direction of the pump body.
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公开(公告)号：US11333153B2
公开(公告)日：2022-05-17
申请号：US16467416
申请日：2017-12-08
Applicant: Edwards Japan Limited
Inventor： Hideki Omori , Yanbin Sun , Kengo Saegusa , Yoshiyuki Sakaguchi
Abstract: A vacuum pump includes a regenerative resistor removed from the control apparatus and disposed in the vacuum pump. More specifically, the regenerative resistor is detached from a control board (control apparatus) on which a control circuit is mounted, and disposed in a base of the vacuum pump, and connected to the control board via a wire. Further, a gap is provided between the base of the vacuum pump and the control apparatus. Moreover, a cover (outer covering body) is provided in the regenerative resistor disposed in the base part of the vacuum pump and the wire part. Since the regenerative resistor is provided in the base of the vacuum pump, which has a large heat capacity, a temperature increase of the control apparatus is reduced.
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公开(公告)号：US11821440B2
公开(公告)日：2023-11-21
申请号：US16967892
申请日：2019-02-08
Applicant: Edwards Japan Limited
Inventor： Yanbin Sun , Kengo Saegusa
CPC classification number: F04D29/5813 , F28D9/0081 , F04D19/042
Abstract: To provide a vacuum pump capable of efficiently cooling electrical equipment. The vacuum pump comprises a pump main body, and an electrical equipment case disposed outside the pump main body, wherein the electrical equipment case includes a cooling jacket in which a cooling medium flow passage is formed, and a power supply circuit portion that has a circuit component and can be cooled by the cooling jacket, the power supply circuit portion being attached to the cooling jacket so that heat from the electrical component portion can be transferred, and the cooling jacket includes a jacket main body and a cooling pipe for circulating cooling water in the jacket main body, and partially exposes the cooling pipe toward the power supply circuit portion.
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公开(公告)号：US11215187B2
公开(公告)日：2022-01-04
申请号：US16341495
申请日：2017-09-29
Applicant: Edwards Japan Limited
Inventor： Kengo Saegusa , Yanbin Sun
Abstract: A vacuum pump, and a waterproof structure and a control apparatus applied to the vacuum pump which improve efficiency of on-site maintenance work and prevent water from penetrating into a connector connecting portion when a cover is removed during circuit separation or the like. When performing maintenance work, after a chassis of a control apparatus is lowered by around several tens of millimeters, the chassis of the control apparatus is pulled out in a radial direction of a pump. Accordingly, a pump main body and the control apparatus can be readily attached and detached even when sufficient empty space is not available in an axial direction of the vacuum pump. A wall portion is circumferentially protrusively provided in side portions of the base portion and the control apparatus. Furthermore, a sealing member and a lid are inserted into a gap. Therefore, water droplets cannot easily penetrate into the gap.
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公开(公告)号：US20210025407A1
公开(公告)日：2021-01-28
申请号：US16967892
申请日：2019-02-08
Applicant: Edwards Japan Limited
Inventor： Yanbin Sun , Kengo Saegusa
Abstract: To provide a vacuum pump capable of efficiently cooling electrical equipment. The vacuum pump comprises a pump main body, and an electrical equipment case disposed outside the pump main body, wherein the electrical equipment case includes a cooling jacket in which a cooling medium flow passage is formed, and a power supply circuit portion that has a circuit component and can be cooled by the cooling jacket, the power supply circuit portion being attached to the cooling jacket so that heat from the electrical component portion can be transferred, and the cooling jacket includes a jacket main body and a cooling pipe for circulating cooling water in the jacket main body, and partially exposes the cooling pipe toward the power supply circuit portion.
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Patent Agency Ranking
公开(公告)号：US20210025406A1
公开(公告)日：2021-01-28
申请号：US16967889
申请日：2019-02-08
Applicant: Edwards Japan Limited
Inventor： Yanbin Sun
Abstract: To provide a vacuum pump capable of efficiently cooling electrical equipment. The vacuum pump includes a pump main body and an electrical equipment case disposed outside the pump main body, wherein the electrical equipment case includes a cooling jacket which has an inner surface and an outer surface in a vertical portion and in which a cooling medium flow passage is formed, and a plurality of electrical equipment that have circuit components and can be cooled by the cooling jacket. The inner surface and the outer surface are formed facing different directions, and the electrical equipment portions are attached respectively to the inner surface and the outer surface so that heat can be transferred.
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公开(公告)号：US11415151B2
公开(公告)日：2022-08-16
申请号：US16967889
申请日：2019-02-08
Applicant: Edwards Japan Limited
Inventor： Yanbin Sun
Abstract: To provide a vacuum pump capable of efficiently cooling electrical equipment. The vacuum pump includes a pump main body and an electrical equipment case disposed outside the pump main body, wherein the electrical equipment case includes a cooling jacket which has an inner surface and an outer surface in a vertical portion and in which a cooling medium flow passage is formed, and a plurality of electrical equipment that have circuit components and can be cooled by the cooling jacket. The inner surface and the outer surface are formed facing different directions, and the electrical equipment portions are attached respectively to the inner surface and the outer surface so that heat can be transferred.
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公开(公告)号：US11408429B2
公开(公告)日：2022-08-09
申请号：US16477745
申请日：2018-01-12
Applicant: Edwards Japan Limited
Inventor： Yoshiyuki Sakaguchi , Yanbin Sun , Kengo Saegusa , Hideki Omori
Abstract: Provided is a vacuum pump apparatus which allows reductions in thickness, weight, size, and cost of a vacuum pump control device. In the vacuum pump apparatus, a pump main body unit and a control unit which controls driving of the pump main body unit are integrated with each other. The vacuum pump apparatus has a configuration in which a spacer configured to support a load applied to a housing of the control unit is provided between a base of the pump main body unit and the housing of the control unit.
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公开(公告)号：US11081845B2
公开(公告)日：2021-08-03
申请号：US16469794
申请日：2017-12-08
Applicant: Edwards Japan Limited
Inventor： Yanbin Sun , Kengo Saegusa , Yoshiyuki Sakaguchi , Hideki Omori
Abstract: A vacuum pump has a hermetic connector disposed on a base of a body of the vacuum pump. The hermetic connector has a plurality of pins connected to a plurality of electrical cables leading to the inside of the pump body. The connector is longer in a lateral direction than in an axial direction so that the connector is horizontally long in a circumferential direction of the pump body.
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公开(公告)号：US20190309760A1
公开(公告)日：2019-10-10
申请号：US16467416
申请日：2017-12-08
Applicant: Edwards Japan Limited
Inventor： Hideki Omori , Yanbin Sun , Kengo Saegusa , Yoshiyuki Sakaguchi
Abstract: To realize a vacuum pump capable of improving the heat dissipation capability of a regenerative resistor with a simple configuration, and a control apparatus associated with the vacuum pump. The regenerative resistor is removed from the control apparatus and disposed in the vacuum pump. More specifically, the regenerative resistor is detached from a control board (control apparatus) on which a control circuit is mounted, and then disposed in a base of the vacuum pump via a wire. Further, a gap is provided between the base of the vacuum pump and the control apparatus. Moreover, a cover (outer covering body) is provided in the regenerative resistor disposed in the base part of the vacuum pump and the wire part. Since the regenerative resistor is provided in the base of the vacuum pump having a large heat capacity, a temperature increase of the control apparatus is reduced.
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