Nidec Tosok Corporation

Honda Motor Co., Ltd.

Subaru Corporation

Tomohiro Yasuda

Weiming Chen

Kenta Kuramochi

Fumio Kai

Takeshi Nakano

Hiroaki Ue

Akira Fujita

Yoshinori Yamaki

Naoki Hiraoka

Takashi Asai

Tomoya Ozawa

Daisuke Murata

Takashi Hashimoto

Masaya Kishi

Keita Kobayashi

Takanori Ara

Kenro Takahashi

Hiroki Ishii

Yoshihiko Ohira

A vehicle cooling system includes a circulation flow path section which has a first flow path section and a second flow path section, and a solenoid valve which can switch between an open state in which the first flow path section and the second flow path section are connected and a closed state in which the first flow path section and the second flow path section are blocked. The circulation flow path section includes a valve body accommodating section configured to include a first accommodating section and a second accommodating section which connects the first flow path section and the second flow path section in the open state, and a connection flow path section whose one end is connected to the first flow path section. The other end of the connection flow path section opens to the first accommodating section.

Vehicle cooling system

A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening; a first inner wall part expanding toward the outer side in the radial direction on an inner wall; and a first caulking part extending from the rear side end. The first inner wall part has a first step part extending toward the outer side in the radial direction at an end on the other side in the axial direction. A first cylindrical part of the yoke has a first flange part. The first flange part contacts the first step part with an end surface on the other side in the axial direction. The first caulking part is bent toward the inner side in the radial direction to contact a circumferential edge part of the lid.

Solenoid device

A pressure control device reliably preventing foreign matter from flowing beyond a filter unit to the downstream side. The pressure control device includes a body and a cylindrical filter unit. The body has a flow path including a groove and a widened part. A depth of the groove from an upper surface to a bottom is a first depth. The widened part is connected to the groove, extends from the upper surface to the bottom, and has a width larger than a width of the groove. The filter unit is housed along a depth direction of the widened part to capture foreign matter mixed in a fluid passing through the flow path. A depth of the widened part from the upper surface to a bottom surface is a second depth larger than the first depth. The widened part includes a receiving part that a part of the filter unit enters.

Pressure control device

A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening that opens on the rear side; and a first inner wall part expanding in a cylindrical shape on the outer side in the radial direction on an inner wall on the rear side. The first inner wall part has a first step part at the end on the other side in the axial direction. A first cylindrical part of the yoke has a first flange part on the rear side. The first flange part has a hole penetrating in the axial direction. A second space, which communicates a second through hole with the hole when the plunger has moved to a retreat position, is provided between an inner surface of the lid and the plunger and the yoke.

The control valve device includes a valve body having a stacked first body and second body. The first body includes a first oil passage, a filter covering an opening of the first oil passage, a first accommodating part recessed from a first boundary surface surrounding the opening of the first oil passage, and two second accommodating parts which are more recessed than the first accommodating part from the first boundary surface on outer sides of opposite end portions of the first accommodating part. The filter includes a filter part covering the opening of the first oil passage and two leaf springs respectively disposed in the two second accommodating parts, and an end portion of each of the leaf springs comes into contact with a first wall surface of the second accommodating parts facing the first oil passage side.

Control valve device

The disclosure provides a pressure control device that improves the workability in assembling a body and a filter unit. The pressure control device includes a body and a filter unit. The body has a flow path that includes a groove and a widened part. The widened part is connected to the groove, extends to a bottom of the groove, and has a width larger than a width of the groove. The filter unit is housed along a depth direction of the widened part to capture foreign matter mixed in a fluid that passes through the flow path. The filter unit includes a cylindrical frame and a flat plate-shaped filter member, wherein the frame includes a through hole part that penetrates in a direction orthogonal to a central axis, and the filter member is disposed to block the through hole part.

A solenoid device includes a yoke, a core, a shaft, a bobbin, a coil, a plunger, a lid, and a housing. A housing body part of the housing has a first opening; a cylindrical first inner wall part having a first step part extending toward the outer side in the radial direction; and a cylindrical second inner wall part having a second step part extending toward the outer side in the radial direction. A first cylindrical part has a first flange part. The outer diameter of the first flange part is larger than the inner diameter of the first inner wall part and smaller than the inner diameter of the second inner wall part. A circumferential end part of the first flange part contacts the second step part. The lid is non-magnetic, and a circumferential edge part is held between the first step part and the first flange part.

A self-holding electromagnetic valve includes: a solenoid having a tubular guide part having the same center as a central axis extending in an axial direction; a axially movable element located radially inside the guide part; a cover housing the solenoid and the movable element, having a hole portion, and made of a magnetic material; a pin located at the hole portion and movable along with movement of the movable element; and a valve section provided outside the cover and opened/closed along with movement of the movable element and the pin. The solenoid has a cylindrical part with an inner circumferential surface that receives the guide part, tooth parts that extend radially outward from the cylindrical part and are made of a magnetic material, bobbin parts provided each tooth part, and coils wound around the bobbin parts.

Electromagnetic valve

An electromagnetic valve includes: a solenoid having a tubular guide part having the same center as a central axis extending in an axial direction; a movable element disposed inside the guide part and movable in the axial direction; a cover housing the solenoid and the movable element, defining a hole portion, and made of a magnetic material; a pin located at the hole portion and movable along with movement of the movable element; and a valve section provided outside the cover and opened/closed along with movement of the movable element and the pin. The solenoid has a core that surrounds an outer side of the movable element in the radial direction, and a coil that magnetizes the core. The core has an annular ring part surrounding the outer side of the movable element, and tooth parts protruding radially outward from the ring part on which the coil is mounted.

The present disclosure relates to a solenoid of an electromagnetic valve where the number of processes can be reduced and breaking of a conductive wire can be suppressed in a simple structure, and the solenoid of the electromagnetic valve according to the present disclosure comprises a conductive wire; a bobbin having a tubular winding portion where the conductive wire is wound around in a coil shape and a flange portion disposed on both end portions of the winding portion; a terminal portion which is disposed on the flange portion and protrudes in a planar shape in a direction perpendicular to the central axis of the bobbin on a radially outer side than the winding portion relative to the central axis, and in which two terminals are provided on a distal end portion side; and two wall portions which are disposed on both sides of the terminal portion in a width direction, stand upright in a central axis direction and face each other, wherein both end portions of the conductive wire are drawn out from the bobbin to the terminal portion, directed toward a radially outer side from a winding portion side of the two wall portions and electrically connected to the terminals.

Solenoid of electromagnetic valve

An electromagnetic valve includes a pressing member fixed farther towards an electromagnetic movable section side than a valve chamber in a nozzle. The pressing member is fixed to a plunger farther towards the side where the plunger is pressed by the pressing member than a position where the pressing member is fixed to the nozzle. Thus, a magnetic circuit defined by magnetic flux that is generated from a magnet is prevented from being located at a portion not related to an attractive force between a core and the plunger such that it is possible to effectively utilize the magnetic flux as an attractive force between the core and the plunger.

Growing community of inventors

Kanagawa, Japan

Tomohiro Yasuda